1
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Maixner F, Drescher D, Boccalini G, Piombino-Mascali D, Janko M, Berens-Riha N, Kim BJ, Gamble M, Schatterny J, Morty RE, Ludwig M, Krause-Kyora B, Stark R, An HJ, Neumann J, Cipollini G, Grimm R, Kilian N, Zink A. Microscopic Evidence of Malaria Infection in Visceral Tissue from Medici Family, Italy. Emerg Infect Dis 2023; 29:1280-1283. [PMID: 37209696 DOI: 10.3201/eid2906.230134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023] Open
Abstract
Microscopy of mummified visceral tissue from a Medici family member in Italy identified a potential blood vessel containing erythrocytes. Giemsa staining, atomic force microscopy, and immunohistochemistry confirmed Plasmodium falciparum inside those erythrocytes. Our results indicate an ancient Mediterranean presence of P. falciparum, which remains responsible for most malaria deaths in Africa.
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2
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Bucnius M, Miscikas L, Bucius P, Jureviciute J, Leleika A, Grimm R, Voskrebenzev A, Vogel-Claussen J, Padervinskiene L, Virbickiene A, Lapinskas T. Reproducibility of lung perfusion and ventilation derived using phase-resolved functional lung (PREFUL) MRI imaging. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
There is a growing demand for non-invasive imaging biomarkers of lung function, allowing more sensitive and timely decision making to achieve better patient outcomes. Recently developed Fourier decomposition MRI methods enable quantitative assessment of lung performance.
Objectives
To assess intra- and inter-observer agreement of lung perfusion and ventilation derived using the free-breathing, contrast agent-free, phase-resolved functional lung (PREFUL) imaging.
Methods
Fifty patients with acute ST-segment elevation myocardial infarction underwent CMR imaging using a 3 T MRI scanner (MAGNETOM Skyra). Coronal images were acquired during free breathing, covering the entire lung using a phase-resolved functional lung 2D FLASH sequence. The main scan parameters were: temporal resolution = 2.1 ms, number of measurements = 250. The lung perfusion and ventilation maps were generated (Figure 1). The analysis of the images was performed using prototype software (MR Lung Prototype version 2.0) by two independent observers. Analysis was repeated after four weeks to assess intra-observer agreement.
Results
PREFUL imaging and analysis were fast with a 35 second scan time and up to one minute post-processing time for a complete quantitative assessment. The lung perfusion and ventilation demonstrated excellent intra-observer (ICC 0.928 (0.870 to 0.959) and 0.994 (0.990 to 0.997) for mean perfusion and ventilation respectively) and inter-observer agreement (ICC 0.966 (0.940 to 0.981) and 0.992 (0.985 to 0.996) for mean perfusion and ventilation respectively). Bland-Altman plots demonstrate intra- and inter-observer reproducibility for lung perfusion and ventilation (Figure 2).
Conclusion
The lung perfusion and ventilation derived using phase-resolved functional lung (PREFUL) MRI imaging are highly reproducible. The Fourier decomposition method may allow fast quantitative evaluation of lung function.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Hospital of Lithuanian University of Health Sciences
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Affiliation(s)
- M Bucnius
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
| | - L Miscikas
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
| | - P Bucius
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
| | - J Jureviciute
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
| | - A Leleika
- Lithuanian University of Health Sciences, Faculty of Medicine , Kaunas , Lithuania
| | - R Grimm
- Siemens Healthcare GmbH, MR Application Predevelopment , Erlangen , Germany
| | - A Voskrebenzev
- Hannover Medical School, Institute for Diagnostic and Interventional Radiology , Hannover , Germany
| | - J Vogel-Claussen
- Hannover Medical School, Institute for Diagnostic and Interventional Radiology , Hannover , Germany
| | - L Padervinskiene
- Lithuanian University of Health Sciences, Department of Radiology , Kaunas , Lithuania
| | - A Virbickiene
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
| | - T Lapinskas
- Lithuanian University of Health Sciences, Department of Cardiology , Kaunas , Lithuania
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3
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Hughes D, Wilson R, Saijo Y, Chan N, Kumar A, Grimm R, Griffin B, Tang W, Nissen S, Aminian A, Xu B. Impact of weight loss on cardiac function: improvement in left ventricular global longitudinal strain following metabolic surgery. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Obesity leads to an increased risk of cardiovascular disease (CVD) morbidity and mortality and is associated with the metabolic risk factors such as hypertension, diabetes mellitus, hyperlipidemia [1]. Metabolic surgery has been proven to be the most effective long term weight management tool and has known benefits in CVD prevention [2]. Global longitudinal strain (GLS) is an effective quantitative measurement of left ventricular (LV) function that is also a powerful predictor of future CVD events and mortality [3]. The impact of metabolic surgery on LV structure and function is unknown.
Purpose
This study investigated the changes in cardiac structure and function after metabolic surgery, including GLS. To our knowledge there has not been a study investigating this relationship previously reported.
Methods
Consecutive patients undergoing metabolic surgery at our center between March 2005 and February 2019 were recruited. Patients with transthoracic echocardiographic imaging (TTE) pre and post metabolic surgery (May 2005 to January 2019) were included. Electronic medical records were searched to obtain demographic, surgical and clinical data. GLS was calculated with Velocity Vector Imaging (VVI, Siemens, v2.0, Pennsylvania, USA). Averaged GLS values were derived from 4 chamber, 2 chamber and 3 chamber calculations.
Results
398 patients with pre- and post-operative cardiac imaging were included. Please see Table 1 for the baseline demographics of our study population. The mean age was 60.0 years with 70% being female. There were significant rates of CVD risk factors such as: hypertension (76.4%), diabetes mellitus (58.8%) and hyperlipidemia (76.4%).
The clinical and echocardiographic changes noted post metabolic surgery are detailed in Table 2. Along with decreases in weight post operatively, there were significant improvements in the markers of CVD risk factors such as mean blood pressure (134/75 to 129/72 mmHg, p value <0.001), mean gylcated hemoglobin levels (7.0 to 6.1%, p value <0.001) and mean low density lipoprotein (LDL) levels (97.7 to 88.2 mg/dl, p value <0.001).
There were a number of statistically significant positive changes in the left ventricular structure and function. The mean LV ejection fraction increased from 56.3% to 57.4% (p=0.008); left ventricular mass decreased from 238.2 g to 179.3 g (p value <0.001), and both septal and posterior wall thicknesses decreased significantly (p value <0.001). The LV mass indexed to body surface area (BSA) also decreased from 93.5 g/m2 to 83.1 g/m2.
The average global LV GLS was −15.7% pre-operatively, improving significantly to −17.9% post-operatively (p<0.001).
Conclusion
Our study has shown for the first time the impact of metabolic surgery on ventricular structure and function, with reduction in LV mass and improvement in LV GLS. These novel findings lends further support to the cardiovascular benefits of metabolic surgery.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- D Hughes
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - R Wilson
- Cleveland Clinic, Bariatric and Metabolic Institute , Cleveland , United States of America
| | - Y Saijo
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - N Chan
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - A Kumar
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - R Grimm
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - B Griffin
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - W Tang
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - S Nissen
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
| | - A Aminian
- Cleveland Clinic, Bariatric and Metabolic Institute , Cleveland , United States of America
| | - B Xu
- Cleveland Clinic, Heart and Vascular Institute , Cleveland , United States of America
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Wang T, Flamm S, Schoenhagen P, Griffin B, Rodriguez L, Grimm R, Xu B. Diagnostic And Prognostic Performance Of Aortic Valve Calcium Score By Cardiac Computed Tomography For Severe Aortic Stenosis: A Meta-analysis. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Grimm R. How Modern Mass Spectrometry Can Solve Ancient Questions: A Multi-Omics Study of the Stomach Content of the Oldest Human Ice Mummy, the 5300-Year-Old Iceman or Oetzi. Methods Mol Biol 2021; 2261:1-12. [PMID: 33420980 DOI: 10.1007/978-1-0716-1186-9_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In the past 40 years, mass spectrometry has seen a stunning development regarding increased sensitivity, resolution, and accuracy, especially for biomolecule analysis. These days without any doubt mass spectrometry is the most powerful analytical tool as a standalone technique or in conjunction with separation techniques such as high-performance liquid chromatography (HPLC), gas chromatography (GC), or capillary electrophoresis (CE). It is literally used to analyze any kind of small or large molecules ranging from basic elements to metabolites, pesticides, toxins, small or large molecule drugs, oligonucleotides, peptides, proteins, and many other molecule classes.Here, various modern mass spectrometry techniques such as LC-MS , GC-MS, ICP-MS, and elemental bio-imaging are briefly described how they were used for the first complex multi-omics study of the oldest human ice mummy, the 5300-year-old Iceman or Oetzi. The study comprised of mass spectrometry-driven proteomics (protein profiling and characterization), metabolomics, lipidomics, glycomics, and metallomics.
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6
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Ravensbergen C, Soave E, Corre V, Kreyer M, Huang B, Kirilov E, Grimm R. Resonantly Interacting Fermi-Fermi Mixture of ^{161}Dy and ^{40}K. Phys Rev Lett 2020; 124:203402. [PMID: 32501049 DOI: 10.1103/physrevlett.124.203402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 03/12/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
We report on the realization of a Fermi-Fermi mixture of ultracold atoms that combines mass imbalance, tunability, and collisional stability. In an optically trapped sample of ^{161}Dy and ^{40}K, we identify a broad Feshbach resonance centered at a magnetic field of 217 G. Hydrodynamic expansion profiles in the resonant interaction regime reveal a bimodal behavior resulting from mass imbalance. Lifetime studies on resonance show a suppression of inelastic few-body processes by orders of magnitude, which we interpret as a consequence of the fermionic nature of our system. The resonant mixture opens up intriguing perspectives for studies on novel states of strongly correlated fermions with mass imbalance.
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Affiliation(s)
- C Ravensbergen
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - E Soave
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - V Corre
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - M Kreyer
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - B Huang
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - E Kirilov
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - R Grimm
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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7
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Sato K, Sankaramangalam K, Krishnaswamy A, Mick S, Rodriguez L, Grimm R, Menon V, Kapadia S, Desai M, Svensson L, Griffin B, Popovic Z. 1139Prognostic impact of aortic valve replacement in contemporary low-gradient aortic stenosis patients with lack of contractile reserve. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Sato
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - K Sankaramangalam
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - A Krishnaswamy
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - S Mick
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - L Rodriguez
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - R Grimm
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - V Menon
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - S Kapadia
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - M Desai
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - L Svensson
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - B Griffin
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
| | - Z Popovic
- Cleveland Clinic Foundation, Heart and Vascular Institute, Cleveland, United States of America
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8
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Wang JR, Gao WN, Grimm R, Jiang S, Liang Y, Ye H, Li ZG, Yau LF, Huang H, Liu J, Jiang M, Meng Q, Tong TT, Huang HH, Lee S, Zeng X, Liu L, Jiang ZH. Reply to 'Trace N-glycans including sulphated species may originate from various plasma glycoproteins and not necessarily IgG'. Nat Commun 2018; 9:2915. [PMID: 30046037 PMCID: PMC6060093 DOI: 10.1038/s41467-018-05082-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/14/2018] [Indexed: 12/26/2022] Open
Affiliation(s)
- Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Wei-Na Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Rudolf Grimm
- Agilent Technologies, 5301 Stevens Creek Blvd, Santa Clara, CA, 95051, USA
| | - Shibo Jiang
- Key Labortory of Medical Molecular Virology of Ministries of Education and Health, Basic Medical College, Fudan University, Shanghai, 200032, China
- Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY, 10065, USA
| | - Yong Liang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Hua Ye
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11 Xizhimen South Street, Beijing, 100044, China
| | - Zhan-Guo Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, 11 Xizhimen South Street, Beijing, 100044, China
| | - Lee-Fong Yau
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Hao Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Ju Liu
- Division of Rheumatology, Jiujiang First People's Hospital, Taling North Road 48, Jiujiang, 332000, China
| | - Min Jiang
- Division of Rheumatology, Jiujiang First People's Hospital, Taling North Road 48, Jiujiang, 332000, China
| | - Qiong Meng
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Tian-Tian Tong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Hai-Hui Huang
- Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Stephanie Lee
- Agilent Technologies Hong Kong Ltd., Suite 2603, 26/F, AXA Tower, Landmark East, Kwun Tong, Hong Kong, China
| | - Xing Zeng
- Guangdong Provincial Hospital of Chinese Medicine, Dade Road 111, Guangzhou, 510120, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China.
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China.
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China.
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9
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Maixner F, Turaev D, Cazenave-Gassiot A, Janko M, Krause-Kyora B, Hoopmann MR, Kusebauch U, Sartain M, Guerriero G, O'Sullivan N, Teasdale M, Cipollini G, Paladin A, Mattiangeli V, Samadelli M, Tecchiati U, Putzer A, Palazoglu M, Meissen J, Lösch S, Rausch P, Baines JF, Kim BJ, An HJ, Gostner P, Egarter-Vigl E, Malfertheiner P, Keller A, Stark RW, Wenk M, Bishop D, Bradley DG, Fiehn O, Engstrand L, Moritz RL, Doble P, Franke A, Nebel A, Oeggl K, Rattei T, Grimm R, Zink A. The Iceman's Last Meal Consisted of Fat, Wild Meat, and Cereals. Curr Biol 2018; 28:2348-2355.e9. [PMID: 30017480 PMCID: PMC6065529 DOI: 10.1016/j.cub.2018.05.067] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/15/2018] [Accepted: 05/23/2018] [Indexed: 12/21/2022]
Abstract
The history of humankind is marked by the constant adoption of new dietary habits affecting human physiology, metabolism, and even the development of nutrition-related disorders. Despite clear archaeological evidence for the shift from hunter-gatherer lifestyle to agriculture in Neolithic Europe [1], very little information exists on the daily dietary habits of our ancestors. By undertaking a complementary -omics approach combined with microscopy, we analyzed the stomach content of the Iceman, a 5,300-year-old European glacier mummy [2, 3]. He seems to have had a remarkably high proportion of fat in his diet, supplemented with fresh or dried wild meat, cereals, and traces of toxic bracken. Our multipronged approach provides unprecedented analytical depth, deciphering the nutritional habit, meal composition, and food-processing methods of this Copper Age individual.
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Affiliation(s)
- Frank Maixner
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy.
| | - Dmitrij Turaev
- CUBE - Division of Computational Systems Biology, Department of Microbiology and Ecosystem Science, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Amaury Cazenave-Gassiot
- SLING, Life Sciences Institute, National University of Singapore, Singapore; Department of Biochemistry, National University of Singapore, Singapore
| | - Marek Janko
- Institute of Materials Science, Physics of Surfaces, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt, Germany; Center of Smart Interfaces, Technische Universität Darmstadt, Alarich-Weiss-Str. 10, 64287 Darmstadt, Germany
| | - Ben Krause-Kyora
- Institute of Clinical Molecular Biology, Kiel University, Rosalind-Franklin-Str. 12, 24105 Kiel, Germany
| | - Michael R Hoopmann
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Ulrike Kusebauch
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Mark Sartain
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Gea Guerriero
- Environmental Research and Innovation (ERIN), Luxembourg Institute of Science and Technology (LIST), Esch/Alzette, Luxembourg
| | - Niall O'Sullivan
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy
| | - Matthew Teasdale
- Smurfit Institute of Genetics, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Giovanna Cipollini
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy
| | - Alice Paladin
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy
| | - Valeria Mattiangeli
- Smurfit Institute of Genetics, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Marco Samadelli
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy
| | - Umberto Tecchiati
- Responsabile del Laboratorio di Archeozoologia della Soprintendenza Provinciale ai Beni culturali di Bolzano - Alto Adige, Ufficio Beni archeologica, 39100 Bolzano, Italy
| | - Andreas Putzer
- South Tyrol Museum of Archaeology, Museumstrasse 43, 39100 Bolzano, Italy
| | - Mine Palazoglu
- Department of Molecular and Cellular Biology & Genome Center, University of California, Davis, Davis, CA, USA
| | - John Meissen
- Department of Molecular and Cellular Biology & Genome Center, University of California, Davis, Davis, CA, USA
| | - Sandra Lösch
- Department of Physical Anthropology, Institute of Forensic Medicine, University of Bern, Sulgenauweg 40, 3007 Bern, Switzerland
| | - Philipp Rausch
- Max Planck Institute for Evolutionary Biology, August-Thienemann-Strasse 2, D-24306, Plön, Germany
| | - John F Baines
- Max Planck Institute for Evolutionary Biology, August-Thienemann-Strasse 2, D-24306, Plön, Germany
| | - Bum Jin Kim
- Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea
| | - Hyun-Joo An
- Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea
| | - Paul Gostner
- Department of Radiodiagnostics, Central Hospital Bolzano, Bolzano, Italy
| | - Eduard Egarter-Vigl
- Scuola Superiore Sanitaria Provinciale "Claudiana," Via Lorenz Böhler 13, 39100 Bolzano, Italy
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Otto-von-Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, Medical Faculty, Saarbrücken, Germany
| | - Robert W Stark
- Institute of Materials Science, Physics of Surfaces, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt, Germany; Center of Smart Interfaces, Technische Universität Darmstadt, Alarich-Weiss-Str. 10, 64287 Darmstadt, Germany
| | - Markus Wenk
- SLING, Life Sciences Institute, National University of Singapore, Singapore; Department of Biochemistry, National University of Singapore, Singapore
| | - David Bishop
- Elemental Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales, 2007, Australia
| | - Daniel G Bradley
- Smurfit Institute of Genetics, University of Dublin, Trinity College, Dublin 2, Ireland
| | - Oliver Fiehn
- Department of Molecular and Cellular Biology & Genome Center, University of California, Davis, Davis, CA, USA
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 141 83 Stockholm, Sweden
| | - Robert L Moritz
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109, USA
| | - Philip Doble
- Elemental Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales, 2007, Australia
| | - Andre Franke
- Institute of Clinical Molecular Biology, Kiel University, Rosalind-Franklin-Str. 12, 24105 Kiel, Germany
| | - Almut Nebel
- Institute of Clinical Molecular Biology, Kiel University, Rosalind-Franklin-Str. 12, 24105 Kiel, Germany
| | - Klaus Oeggl
- Institute of Botany, Sternwartestrasse 15, University of Innsbruck, 6020 Innsbruck, Austria
| | - Thomas Rattei
- CUBE - Division of Computational Systems Biology, Department of Microbiology and Ecosystem Science, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Rudolf Grimm
- Agilent Technologies, 5301 Stevens Creek Blvd, Santa Clara, CA 95051, USA
| | - Albert Zink
- Eurac Research - Institute for Mummy Studies, Viale Druso 1, 39100 Bolzano, Italy.
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10
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Lous RS, Fritsche I, Jag M, Lehmann F, Kirilov E, Huang B, Grimm R. Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture. Phys Rev Lett 2018; 120:243403. [PMID: 29956951 DOI: 10.1103/physrevlett.120.243403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Indexed: 06/08/2023]
Abstract
We probe the interface between a phase-separated Bose-Fermi mixture consisting of a small Bose-Einstein condensate of ^{41}K residing in a large Fermi sea of ^{6}Li. We quantify the residual spatial overlap between the two components by measuring three-body recombination losses for variable strength of the interspecies repulsion. A comparison with a numerical mean-field model highlights the importance of the kinetic energy term for the condensed bosons in maintaining the thin interface far into the phase-separated regime. Our results demonstrate a corresponding smoothing of the phase transition in a system of finite size.
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Affiliation(s)
- Rianne S Lous
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Isabella Fritsche
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Michael Jag
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Fabian Lehmann
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Emil Kirilov
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Bo Huang
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Rudolf Grimm
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
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11
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Ravensbergen C, Corre V, Soave E, Kreyer M, Tzanova S, Kirilov E, Grimm R. Accurate Determination of the Dynamical Polarizability of Dysprosium. Phys Rev Lett 2018; 120:223001. [PMID: 29906178 DOI: 10.1103/physrevlett.120.223001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 06/08/2023]
Abstract
We report a measurement of the dynamical polarizability of dysprosium atoms in their electronic ground state at the optical wavelength of 1064 nm, which is of particular interest for laser trapping experiments. Our method is based on collective oscillations in an optical dipole trap, and reaches unprecedented accuracy and precision by comparison with an alkali atom (potassium) as a reference species. We obtain values of 184.4(2.4) and 1.7(6) a.u. for the scalar and tensor polarizability, respectively. Our experiments have reached a level that permits meaningful tests of current theoretical descriptions and provides valuable information for future experiments utilizing the intriguing properties of heavy lanthanide atoms.
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Affiliation(s)
- C Ravensbergen
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - V Corre
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - E Soave
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - M Kreyer
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - S Tzanova
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - E Kirilov
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - R Grimm
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
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12
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Steinkellner W, Holzmann K, Gsur A, Grimm R, Ensinger C, Obrist P, Sauermann G, Gerner C. Elevated Plasma Levels of Crosslinked Fibrinogen Gamma-chain Dimer Indicate Cancer-related Fibrin Deposition and Fibrinolysis. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615611] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryCancer-related fibrin deposition and fibrinolysis were investigated by two-dimensional gel electrophoresis of human solid tumor and effusion specimen in addition to plasma samples. Fibrinogen gamma-chain dimer indicating fibrin deposition and plasmin-generated fibrinogen beta-chain fragments were identified in various solid tumor types by amino acid sequencing, mass spectrometry analysis and Western blotting. In tumor-associated effusions, these techniques allowed to observe plasmin-generated fragments of fibrinogen alpha, beta and gamma-chains in addition to elevated levels of acute-phase proteins. Similar observations were made in case of inflammation-associated effusions. No fibrin degradation product was observed in plasma samples, however, high amounts of fibrinogen gamma-chain dimer crosslinked by transglutaminase were detected in plasma from tumor patients, but not in plasma from controls and patients suffering acute infections and/or inflammations. This finding demonstrated that high transglutaminase activity may be associated with cancer. The presented data indicate that the amount of crosslinked fibrinogen gamma-chain dimer in plasma may correlate with tumor-associated fibrin deposition. The tumor-biological relevance of this potential marker protein is discussed.
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13
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Huded C, Kusunose K, Goodman A, Alashi A, Shahid F, Grimm R, Gillinov A, Johnston D, Rodriguez L, Svensson L, Griffin B, Desai M. P187Long-term mortality after surgical aortic valve replacement in patients with normal left ventricular systolic function: incremental utility of valvuloarterial impedence and left ventricular strain. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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14
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Bishop DP, Blanes L, Wilson AB, Wilbanks T, Killeen K, Grimm R, Wenzel R, Major D, Macka M, Clarke D, Schmid R, Cole N, Doble PA. Microfluidic high performance liquid chromatography-chip hyphenation to inductively coupled plasma–mass spectrometry. J Chromatogr A 2017; 1497:64-69. [DOI: 10.1016/j.chroma.2017.03.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 03/13/2017] [Accepted: 03/14/2017] [Indexed: 10/19/2022]
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15
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Budjan J, Riffel P, Grimm R, Block K, Schönberg S, Attenberger U, Hausmann D. Einfluss der Zeitauflösung in der dynamischen kontrastmittelunterstützten renalen MR-Perfusionsbildgebung. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- J Budjan
- Universitätsmedizin Mannheim, Institut für Klinische Radiologie und Nuklearmedizin, Mannheim
| | - P Riffel
- Universitätsmedizin Mannheim, Institut für Klinische Radiologie und Nuklearmedizin, Mannheim
| | - R Grimm
- Siemens Healthcare GmbH, Erlangen
| | - K Block
- Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University School of Medicine, New York, USA
| | - S Schönberg
- Universitätsmedizin Mannheim, Institut für Klinische Radiologie und Nuklearmedizin, Mannheim
| | - U Attenberger
- Universitätsmedizin Mannheim, Institut für Klinische Radiologie und Nuklearmedizin, Mannheim
| | - D Hausmann
- Universitätsmedizin Mannheim, Institut für Klinische Radiologie und Nuklearmedizin, Mannheim
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16
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Reichsöllner L, Schindewolf A, Takekoshi T, Grimm R, Nägerl HC. Quantum Engineering of a Low-Entropy Gas of Heteronuclear Bosonic Molecules in an Optical Lattice. Phys Rev Lett 2017; 118:073201. [PMID: 28256882 DOI: 10.1103/physrevlett.118.073201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Indexed: 06/06/2023]
Abstract
We demonstrate a generally applicable technique for mixing two-species quantum degenerate bosonic samples in the presence of an optical lattice, and we employ it to produce low-entropy samples of ultracold ^{87}Rb^{133}Cs Feshbach molecules with a lattice filling fraction exceeding 30%. Starting from two spatially separated Bose-Einstein condensates of Rb and Cs atoms, Rb-Cs atom pairs are efficiently produced by using the superfluid-to-Mott insulator quantum phase transition twice, first for the Cs sample, then for the Rb sample, after nulling the Rb-Cs interaction at a Feshbach resonance's zero crossing. We form molecules out of atom pairs and characterize the mixing process in terms of sample overlap and mixing speed. The dense and ultracold sample of more than 5000 RbCs molecules is an ideal starting point for experiments in the context of quantum many-body physics with long-range dipolar interactions.
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Affiliation(s)
- Lukas Reichsöllner
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Andreas Schindewolf
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Tetsu Takekoshi
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Rudolf Grimm
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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17
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Cetina M, Jag M, Lous RS, Fritsche I, Walraven JTM, Grimm R, Levinsen J, Parish MM, Schmidt R, Knap M, Demler E. Ultrafast many-body interferometry of impurities coupled to a Fermi sea. Science 2016; 354:96-99. [PMID: 27846498 DOI: 10.1126/science.aaf5134] [Citation(s) in RCA: 208] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 09/06/2016] [Indexed: 11/02/2022]
Abstract
The fastest possible collective response of a quantum many-body system is related to its excitations at the highest possible energy. In condensed matter systems, the time scale for such "ultrafast" processes is typically set by the Fermi energy. Taking advantage of fast and precise control of interactions between ultracold atoms, we observed nonequilibrium dynamics of impurities coupled to an atomic Fermi sea. Our interferometric measurements track the nonperturbative quantum evolution of a fermionic many-body system, revealing in real time the formation dynamics of quasi-particles and the quantum interference between attractive and repulsive states throughout the full depth of the Fermi sea. Ultrafast time-domain methods applied to strongly interacting quantum gases enable the study of the dynamics of quantum matter under extreme nonequilibrium conditions.
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Affiliation(s)
- Marko Cetina
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Michael Jag
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Rianne S Lous
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Isabella Fritsche
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Jook T M Walraven
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, 1098 XH Amsterdam, Netherlands
| | - Rudolf Grimm
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria.
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Jesper Levinsen
- School of Physics and Astronomy, Monash University, Victoria 3800, Australia
| | - Meera M Parish
- School of Physics and Astronomy, Monash University, Victoria 3800, Australia
| | - Richard Schmidt
- Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
- Department of Physics, Harvard University, Cambridge, MA 02138, USA
| | - Michael Knap
- Department of Physics, Walter Schottky Institute and Institute for Advanced Study, Technical University of Munich, 85748 Garching, Germany
| | - Eugene Demler
- Department of Physics, Harvard University, Cambridge, MA 02138, USA
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18
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Kolb M, Othman A, Martirosian P, Falkner F, Grimm R, Nikolaou K, Notohamiprodjo M. Intra-Patienten-Vergleich von SNR und Bildqualität in der arteriellen Leber-MRT: CAIPIRINHA-Dixon-TWIST VIBE vs. Standard T1-VIBE. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Weiß J, Taron J, Othman A, Grimm R, Martirosian P, Schraml C, Nikolaou K, Notohamiprodjo M. Radiale isotrope 3D VIBE mit retrospektivem self-gating: Klinische Evaluation in der kontrastmittelverstärken MRT-Bildgebung der Leber. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Othman A, Falkner F, Weiss J, Kruck S, Grimm R, Martirosian P, Nikolaou K, Notohamiprodjo M. Effekt der zeitlichen Auflösung auf die diagnostische Genauigkeit der dynamischen kontrastverstärkten MRT zur Detektion von potentiell malignen Prostataläsionen. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Maixner F, Krause-Kyora B, Turaev D, Herbig A, Hoopmann MR, Hallows JL, Kusebauch U, Vigl EE, Malfertheiner P, Megraud F, O'Sullivan N, Cipollini G, Coia V, Samadelli M, Engstrand L, Linz B, Moritz RL, Grimm R, Krause J, Nebel A, Moodley Y, Rattei T, Zink A. The 5300-year-old Helicobacter pylori genome of the Iceman. Science 2016; 351:162-165. [PMID: 26744403 DOI: 10.1126/science.aad2545] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The stomach bacterium Helicobacter pylori is one of the most prevalent human pathogens. It has dispersed globally with its human host, resulting in a distinct phylogeographic pattern that can be used to reconstruct both recent and ancient human migrations. The extant European population of H. pylori is known to be a hybrid between Asian and African bacteria, but there exist different hypotheses about when and where the hybridization took place, reflecting the complex demographic history of Europeans. Here, we present a 5300-year-old H. pylori genome from a European Copper Age glacier mummy. The "Iceman" H. pylori is a nearly pure representative of the bacterial population of Asian origin that existed in Europe before hybridization, suggesting that the African population arrived in Europe within the past few thousand years.
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Affiliation(s)
- Frank Maixner
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
| | - Ben Krause-Kyora
- Institute of Clinical Molecular Biology, Kiel University, Schittenhelmstr. 12, 24105 Kiel, Germany
| | - Dmitrij Turaev
- CUBE - Division of Computational Systems Biology, Department of Microbiology and Ecosystem Science, University of Vienna, Althanstr. 14, 1090 Vienna, Austria
| | - Alexander Herbig
- Institute for Archaeological Sciences, University of Tübingen, Rümelinstr. 23, 72072 Tübingen, Germany.,Max Planck Institute for the Science of Human History, Kahlaische Str. 10, 07745 Jena, Germany
| | - Michael R Hoopmann
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, Washington 98109, USA
| | - Janice L Hallows
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, Washington 98109, USA
| | - Ulrike Kusebauch
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, Washington 98109, USA
| | - Eduard Egarter Vigl
- Scuola Superiore Sanitaria Provinciale "Claudiana", Via Lorenz Böhler 13, 39100 Bolzano, Italy
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Otto-von-Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany
| | - Francis Megraud
- Université de Bordeaux, Centre National de Référence des Helicobacters et Campylobacters and INSERM U853, 146 rue Léo Saignat, 33076 Bordeaux, France
| | - Niall O'Sullivan
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
| | - Giovanna Cipollini
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
| | - Valentina Coia
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
| | - Marco Samadelli
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 141 83 Stockholm, Sweden
| | - Bodo Linz
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Robert L Moritz
- Institute for Systems Biology, 401 Terry Avenue North, Seattle, Washington 98109, USA
| | - Rudolf Grimm
- Robert Mondavi Institute for Food Science, University of California, Davis, California 95616, USA
| | - Johannes Krause
- Institute for Archaeological Sciences, University of Tübingen, Rümelinstr. 23, 72072 Tübingen, Germany.,Max Planck Institute for the Science of Human History, Kahlaische Str. 10, 07745 Jena, Germany
| | - Almut Nebel
- Institute of Clinical Molecular Biology, Kiel University, Schittenhelmstr. 12, 24105 Kiel, Germany
| | - Yoshan Moodley
- Department of Zoology, University of Venda, Private Bag X5050, Thohoyandou 0950, Republic of South Africa.,Department of Integrative Biology and Evolution, Konrad Lorenz Institute for Ethology, University of Veterinary Medicine Vienna, Savoyenstr. 1a, 1160 Vienna, Austria
| | - Thomas Rattei
- CUBE - Division of Computational Systems Biology, Department of Microbiology and Ecosystem Science, University of Vienna, Althanstr. 14, 1090 Vienna, Austria
| | - Albert Zink
- Institute for Mummies and the Iceman, EURAC research, Viale Druso 1, 39100 Bolzano, Italy
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22
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Frisch A, Mark M, Aikawa K, Baier S, Grimm R, Petrov A, Kotochigova S, Quéméner G, Lepers M, Dulieu O, Ferlaino F. Ultracold Dipolar Molecules Composed of Strongly Magnetic Atoms. Phys Rev Lett 2015; 115:203201. [PMID: 26613437 DOI: 10.1103/physrevlett.115.203201] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 06/05/2023]
Abstract
In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar system made of ultracold bosonic dipolar molecules with large magnetic dipole moments. Our dipolar molecules are formed in weakly bound Feshbach molecular states from a sample of strongly magnetic bosonic erbium atoms. We show that the ultracold magnetic molecules can carry very large dipole moments and we demonstrate how to create and characterize them, and how to change their orientation. Finally, we confirm that the relaxation rates of molecules in a quasi-two-dimensional geometry can be reduced by using the anisotropy of the dipole-dipole interaction and that this reduction follows a universal dipolar behavior.
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Affiliation(s)
- A Frisch
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - M Mark
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - K Aikawa
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - S Baier
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - R Grimm
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - A Petrov
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Kotochigova
- Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - G Quéméner
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, 91405 Orsay, France
| | - M Lepers
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, 91405 Orsay, France
| | - O Dulieu
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, 91405 Orsay, France
| | - F Ferlaino
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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23
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Cetina M, Jag M, Lous RS, Walraven JTM, Grimm R, Christensen RS, Bruun GM. Decoherence of Impurities in a Fermi Sea of Ultracold Atoms. Phys Rev Lett 2015; 115:135302. [PMID: 26451562 DOI: 10.1103/physrevlett.115.135302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Indexed: 06/05/2023]
Abstract
We investigate the decoherence of ^{40}K impurities interacting with a three-dimensional Fermi sea of ^{6}Li across an interspecies Feshbach resonance. The decoherence is measured as a function of the interaction strength and temperature using a spin-echo atom interferometry method. For weak to moderate interaction strengths, we interpret our measurements in terms of scattering of K quasiparticles by the Fermi sea and find very good agreement with a Fermi liquid calculation. For strong interactions, we observe significant enhancement of the decoherence rate, which is largely independent of temperature, pointing to behavior that is beyond the scattering of quasiparticles in the Fermi liquid picture.
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Affiliation(s)
- Marko Cetina
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Michael Jag
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Rianne S Lous
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Jook T M Walraven
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Rudolf Grimm
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Rasmus S Christensen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Georg M Bruun
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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Hare DJ, Doecke JD, Faux NG, Rembach A, Volitakis I, Fowler CJ, Grimm R, Doble PA, Cherny RA, Masters CL, Bush AI, Roberts BR. Decreased plasma iron in Alzheimer's disease is due to transferrin desaturation. ACS Chem Neurosci 2015; 6:398-402. [PMID: 25588002 DOI: 10.1021/cn5003557] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Plasma iron levels are decreased in Alzheimer's disease (AD) and associated with an idiopathic anemia. We examined iron-binding plasma proteins from AD patients and healthy controls from the Australian Imaging, Biomarkers and Lifestyle (AIBL) Flagship Study of Ageing using size exclusion chromatography-inductively coupled plasma-mass spectrometry. Peak area corresponding to transferrin (Tf) saturation was directly compared to routine pathological testing. We found a significant decrease in transferrin-associated iron in AD that was missed by routine pathological tests of transferrin saturation, and that was able to discriminate between AD and controls. The AD cases showed no significant difference in transferrin concentration, only a decrease in total transferrin-bound iron. These findings support that a previously identified decrease in plasma iron levels in AD patients within the AIBL study is attributable to decreased loading of iron into transferrin, and that this subtle but discriminatory change is not observed through routine pathological testing.
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Affiliation(s)
- Dominic J. Hare
- Elemental
Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales 2007, Australia
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
- Department of Preventive
Medicine, Icahn School of Medicine at Mount Sinai, New York, New York 10029, United States
| | - James D. Doecke
- The Australian eHealth Research Centre, Herston, Queensland 4006, Australia
- CSIRO Preventative Health Flagship, Molecular Science
and Engineering, Parkville, Victoria 3052, Australia
| | - Noel G. Faux
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
- Cooperative Research
Centre for Mental Health, Carlton South, Victoria 3053, Australia
| | - Alan Rembach
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Irene Volitakis
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Christopher J. Fowler
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
- Cooperative Research
Centre for Mental Health, Carlton South, Victoria 3053, Australia
| | - Rudolf Grimm
- Agilent Technologies, Santa Clara, California 95051, United States
| | - Philip A. Doble
- Elemental
Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales 2007, Australia
| | - Robert A. Cherny
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Colin L. Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ashley I. Bush
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Blaine R. Roberts
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria 3010, Australia
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25
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Aikawa K, Frisch A, Mark M, Baier S, Grimm R, Bohn JL, Jin DS, Bruun GM, Ferlaino F. Anisotropic relaxation dynamics in a dipolar Fermi gas driven out of equilibrium. Phys Rev Lett 2014; 113:263201. [PMID: 25615326 DOI: 10.1103/physrevlett.113.263201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Indexed: 06/04/2023]
Abstract
We report on the observation of a large anisotropy in the rethermalization dynamics of an ultracold dipolar Fermi gas driven out of equilibrium. Our system consists of an ultracold sample of strongly magnetic 167Er fermions, spin polarized in the lowest Zeeman sublevel. In this system, elastic collisions arise purely from universal dipolar scattering. Based on cross-dimensional rethermalization experiments, we observe a strong anisotropy of the scattering, which manifests itself in a large angular dependence of the thermal relaxation dynamics. Our result is in good agreement with recent theoretical predictions. Furthermore, we measure the rethermalization rate as a function of temperature for different angles and find that the suppression of collisions by Pauli blocking is not influenced by the dipole orientation.
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Affiliation(s)
- K Aikawa
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - A Frisch
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - M Mark
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - S Baier
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - R Grimm
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - J L Bohn
- JILA, NIST, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - D S Jin
- JILA, NIST, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - G M Bruun
- Department of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK-8000 Aarhus C, Denmark
| | - F Ferlaino
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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26
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Takekoshi T, Reichsöllner L, Schindewolf A, Hutson JM, Le Sueur CR, Dulieu O, Ferlaino F, Grimm R, Nägerl HC. Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state. Phys Rev Lett 2014; 113:205301. [PMID: 25432045 DOI: 10.1103/physrevlett.113.205301] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Indexed: 06/04/2023]
Abstract
We produce ultracold dense trapped samples of ^{87}Rb^{133}Cs molecules in their rovibrational ground state, with full nuclear hyperfine state control, by stimulated Raman adiabatic passage (STIRAP) with efficiencies of 90%. We observe the onset of hyperfine-changing collisions when the magnetic field is ramped so that the molecules are no longer in the hyperfine ground state. A strong quadratic shift of the transition frequencies as a function of applied electric field shows the strongly dipolar character of the RbCs ground-state molecule. Our results open up the prospect of realizing stable bosonic dipolar quantum gases with ultracold molecules.
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Affiliation(s)
- Tetsu Takekoshi
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Lukas Reichsöllner
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Andreas Schindewolf
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Jeremy M Hutson
- Joint Quantum Centre (JQC) Durham/Newcastle, Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - C Ruth Le Sueur
- Joint Quantum Centre (JQC) Durham/Newcastle, Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Olivier Dulieu
- Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, Bâtiment 505, 91405 Orsay Cedex, France
| | - Francesca Ferlaino
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Rudolf Grimm
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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27
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Affiliation(s)
- O. G. Folberth
- Forschungslaboratorium der Siemens-Schuckertwerke A.G., Erlangen
| | - R. Grimm
- Forschungslaboratorium der Siemens-Schuckertwerke A.G., Erlangen
| | - H. Weiß
- Forschungslaboratorium der Siemens-Schuckertwerke A.G., Erlangen
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28
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Ozcan S, Kim BJ, Ro G, Kim JH, Bereuter TL, Reiter C, Dimapasoc L, Garrido D, Mills DA, Grimm R, Lebrilla CB, An HJ. Glycosylated proteins preserved over millennia: N-glycan analysis of Tyrolean Iceman, Scythian Princess and Warrior. Sci Rep 2014; 4:4963. [PMID: 24831691 PMCID: PMC4894394 DOI: 10.1038/srep04963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 04/24/2014] [Indexed: 12/02/2022] Open
Abstract
An improved understanding of glycosylation will provide new insights into many biological processes. In the analysis of oligosaccharides from biological samples, a strict regime is typically followed to ensure sample integrity. However, the fate of glycans that have been exposed to environmental conditions over millennia has not yet been investigated. This is also true for understanding the evolution of the glycosylation machinery in humans as well as in any other biological systems. In this study, we examined the glycosylation of tissue samples derived from four mummies which have been naturally preserved: – the 5,300 year old “Iceman called Oetzi”, found in the Tyrolean Alps; the 2,400 year old “Scythian warrior” and “Scythian Princess”, found in the Altai Mountains; and a 4 year old apartment mummy, found in Vienna/Austria. The number of N-glycans that were identified varied both with the age and the preservation status of the mummies. More glycan structures were discovered in the contemporary sample, as expected, however it is significant that glycan still exists in the ancient tissue samples. This discovery clearly shows that glycans persist for thousands of years, and these samples provide a vital insight into ancient glycosylation, offering us a window into the distant past.
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Affiliation(s)
- Sureyya Ozcan
- 1] Department of Chemistry, University of California, Davis, California 95616, USA [2] Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea [3]
| | - Bum Jin Kim
- 1] Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea [2]
| | - Grace Ro
- Department of Chemistry, University of California, Davis, California 95616, USA
| | - Jae-Han Kim
- Department of Food Nutrition, Chungnam National University, Daejeon, Korea
| | - Thomas L Bereuter
- Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
| | - Christian Reiter
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Lauren Dimapasoc
- Department of Chemistry, University of California, Davis, California 95616, USA
| | | | - David A Mills
- University of California, Davis, California 95616, USA
| | - Rudolf Grimm
- 1] Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea [2] Agilent Technologies Inc., Santa Clara, California 95051, USA [3] Robert Mondavi Institute for Food Science, University of California, Davis, California 95616, USA [4]
| | - Carlito B Lebrilla
- 1] Department of Chemistry, University of California, Davis, California 95616, USA [2] Department of Biochemistry and Molecular Medicine, University of California, Davis, California 95616, USA [3]
| | - Hyun Joo An
- 1] Cancer Research Institute & Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, Korea [2]
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29
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Huang B, Sidorenkov LA, Grimm R, Hutson JM. Observation of the second triatomic resonance in Efimov's scenario. Phys Rev Lett 2014; 112:190401. [PMID: 24877917 DOI: 10.1103/physrevlett.112.190401] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 06/03/2023]
Abstract
We report the observation of a three-body recombination resonance in an ultracold gas of cesium atoms at a very large negative value of the s-wave scattering length. The resonance is identified as the second triatomic Efimov resonance, which corresponds to the situation where the first excited Efimov state appears at the threshold of three free atoms. This observation, together with a finite-temperature analysis and the known first resonance, allows the most accurate demonstration to date of the discrete scaling behavior at the heart of Efimov physics. For the system of three identical bosons, we obtain a scaling factor of 21.0(1.3), close to the ideal value of 22.7.
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Affiliation(s)
- Bo Huang
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Leonid A Sidorenkov
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Rudolf Grimm
- Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Jeremy M Hutson
- Joint Quantum Centre (JQC) Durham/Newcastle, Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
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30
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Grimm R, Eckerskorn C, Lottspeich F, Schäfer E. Rapid Phosphorylation of H3 Histone in Isolated Nuclei of Barley (Hordeum vulgareL.). ACTA ACUST UNITED AC 2014. [DOI: 10.1111/j.1438-8677.1991.tb00196.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Narayanaswamy P, Shinde S, Sulc R, Kraut R, Staples G, Thiam CH, Grimm R, Sellergren B, Torta F, Wenk MR. Lipidomic "deep profiling": an enhanced workflow to reveal new molecular species of signaling lipids. Anal Chem 2014; 86:3043-7. [PMID: 24533588 DOI: 10.1021/ac4039652] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Current mass spectrometry-based lipidomics aims to comprehensively cover wide ranges of lipid classes. We introduce a strategy to capture phospho-monoester lipids and improve the detection of long-chain base phosphates (LCB-Ps, e.g., sphingosine-1-phosphate). Ten novel LCB-Ps (d18:2, t20:1, odd carbon forms) were discovered and characterized in tissues from human and mouse, as well in D. melanogaster and S. cerevisiae. These findings have immediate relevance for our understanding of sphingosine-1-phosphate biosynthesis, signaling, and degradation.
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Affiliation(s)
- Pradeep Narayanaswamy
- Department of Biological Sciences, National University of Singapore , 117543, Singapore
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32
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Jag M, Zaccanti M, Cetina M, Lous RS, Schreck F, Grimm R, Petrov DS, Levinsen J. Observation of a strong atom-dimer attraction in a mass-imbalanced Fermi-Fermi mixture. Phys Rev Lett 2014; 112:075302. [PMID: 24579609 DOI: 10.1103/physrevlett.112.075302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Indexed: 06/03/2023]
Abstract
We investigate a mixture of ultracold fermionic K40 atoms and weakly bound Li6K40 dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio-frequency spectroscopy we demonstrate that the normally repulsive atom-dimer interaction is turned into a strong attraction. The phenomenon can be understood as a three-body effect in which two heavy K40 fermions exchange the light Li6 atom, leading to attraction in odd partial-wave channels (mainly p wave). Our observations show that mass imbalance in a fermionic system can profoundly change the character of interactions as compared to the well-established mass-balanced case.
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Affiliation(s)
- Michael Jag
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria and Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Matteo Zaccanti
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria and CNR Istituto Nazionale Ottica, 50019 Sesto Fiorentino, Italy
| | - Marko Cetina
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Rianne S Lous
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria and Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Florian Schreck
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - Rudolf Grimm
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria and Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
| | - Dmitry S Petrov
- Université Paris-Sud, CNRS, LPTMS, UMR8626, Orsay F-91405, France
| | - Jesper Levinsen
- TCM group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom and Aarhus Institute of Advanced Studies, Aarhus University, DK-8000 Aarhus C, Denmark
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33
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Aikawa K, Frisch A, Mark M, Baier S, Grimm R, Ferlaino F. Reaching Fermi degeneracy via universal dipolar scattering. Phys Rev Lett 2014; 112:010404. [PMID: 24483874 DOI: 10.1103/physrevlett.112.010404] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Indexed: 06/03/2023]
Abstract
We report on the creation of a degenerate dipolar Fermi gas of erbium atoms. We force evaporative cooling in a fully spin-polarized sample down to temperatures as low as 0.2 times the Fermi temperature. The strong magnetic dipole-dipole interaction enables elastic collisions between identical fermions even in the zero-energy limit. The measured elastic scattering cross section agrees well with the predictions from the dipolar scattering theory, which follow a universal scaling law depending only on the dipole moment and on the atomic mass. Our approach to quantum degeneracy proceeds with very high cooling efficiency and provides large atomic densities, and it may be extended to various dipolar systems.
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Affiliation(s)
- K Aikawa
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - A Frisch
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - M Mark
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - S Baier
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - R Grimm
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria and Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
| | - F Ferlaino
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
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34
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Rembach A, Hare DJ, Doecke JD, Burnham SC, Volitakis I, Fowler CJ, Cherny RA, McLean C, Grimm R, Martins R, Ames D, Masters CL, Bush AI, Roberts BR. Decreased serum zinc is an effect of ageing and not Alzheimer's disease. Metallomics 2014; 6:1216-9. [DOI: 10.1039/c4mt00060a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Serum zinc decreases with age.
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Affiliation(s)
- Alan Rembach
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Dominic J. Hare
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
- Elemental Bio-imaging Centre
- University of Technology
| | - James D. Doecke
- CSIRO Preventative Health Flagship: Mathematics, Informatics and Statistics
- Perth, Australia
- The Australian e-Health Research Centre
- Herston, Australia
| | - Samantha C. Burnham
- CSIRO Preventative Health Flagship: Mathematics, Informatics and Statistics
- Perth, Australia
| | - Irene Volitakis
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Christopher J. Fowler
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Robert A. Cherny
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | | | | | - Ralph Martins
- James McCusker Alzheimer's Disease Research Unit
- Health Department of Western Australia
- , Australia
| | - David Ames
- National Ageing Research Institute
- Parkville, Australia
| | - Colin L. Masters
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Ashley I. Bush
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Blaine R. Roberts
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
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35
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Hare DJ, Lei P, Ayton S, Roberts BR, Grimm R, George JL, Bishop DP, Beavis AD, Donovan SJ, McColl G, Volitakis I, Masters CL, Adlard PA, Cherny RA, Bush AI, Finkelstein DI, Doble PA. An iron–dopamine index predicts risk of parkinsonian neurodegeneration in the substantia nigra pars compacta. Chem Sci 2014. [DOI: 10.1039/c3sc53461h] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Imaging of iron and dopamine by laser ablation-inductively coupled plasma-mass spectrometry reveals a risk index for parkinsonian neurodegeneration
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Affiliation(s)
- Dominic J. Hare
- Elemental Bio-imaging Facility
- University of Technology
- Sydney, Australia
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
| | - Peng Lei
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Scott Ayton
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Blaine R. Roberts
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Rudolf Grimm
- Agilent Technologies
- Santa Clara, United States of America
| | - Jessica L. George
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - David P. Bishop
- Elemental Bio-imaging Facility
- University of Technology
- Sydney, Australia
| | - Alison D. Beavis
- Elemental Bio-imaging Facility
- University of Technology
- Sydney, Australia
| | - Sarah J. Donovan
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
- Deakin University
- Burwood, Australia
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Irene Volitakis
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Colin L. Masters
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Paul A. Adlard
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Robert A. Cherny
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Ashley I. Bush
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - David I. Finkelstein
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville, Australia
| | - Philip A. Doble
- Elemental Bio-imaging Facility
- University of Technology
- Sydney, Australia
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36
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Naji P, Asfahan F, Barr T, Grimm R, Gillinov AM, Rodriguez LL, Mihaljevic T, Griffin BP, Desai MY. Holosystolic versus mid-late systolic mitral regurgitation: Differences in characteristics and long-term outcomes in patients undergoing exercise echocardiography. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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37
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Lothian A, Hare DJ, Grimm R, Ryan TM, Masters CL, Roberts BR. Metalloproteomics: principles, challenges and applications to neurodegeneration. Front Aging Neurosci 2013; 5:35. [PMID: 23882215 PMCID: PMC3714543 DOI: 10.3389/fnagi.2013.00035] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 06/25/2013] [Indexed: 01/01/2023] Open
Abstract
Trace elements are required for a variety of normal biological functions. As our understanding of neurodegenerative disease advances we are identifying a number of metalloenzymes involved in disease process. Thus, the future of metals in neurobiology will rely more on detailed information regarding what metalloenzymes are present and how they are involved in the pathophysiology of disease. To gain this detailed information, we will rely less on bulk measures of the amount of a trace elements in a particular tissue and turn to metalloproteomic techniques to help elucidate both metalloprotein structure and function. Recent advances in metalloproteomics will translate to a richer understanding of the mechanism and precise role of metalloenzymes and proteins in the brain.
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Affiliation(s)
- Amber Lothian
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne Parkville, VIC, Australia
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Abstract
We report on Bose-Einstein condensation in a gas of strontium atoms, using laser cooling as the only cooling mechanism. The condensate is formed within a sample that is continuously Doppler cooled to below 1 μK on a narrow-linewidth transition. The critical phase-space density for condensation is reached in a central region of the sample, in which atoms are rendered transparent for laser cooling photons. The density in this region is enhanced by an additional dipole trap potential. Thermal equilibrium between the gas in this central region and the surrounding laser cooled part of the cloud is established by elastic collisions. Condensates of up to 10(5) atoms can be repeatedly formed on a time scale of 100 ms, with prospects for the generation of a continuous atom laser.
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Affiliation(s)
- Simon Stellmer
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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Sidorenkov LA, Tey MK, Grimm R, Hou YH, Pitaevskii L, Stringari S. Second sound and the superfluid fraction in a Fermi gas with resonant interactions. Nature 2013; 498:78-81. [DOI: 10.1038/nature12136] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 03/26/2013] [Indexed: 11/09/2022]
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Tey MK, Sidorenkov LA, Guajardo ERS, Grimm R, Ku MJH, Zwierlein MW, Hou YH, Pitaevskii L, Stringari S. Collective modes in a unitary Fermi gas across the superfluid phase transition. Phys Rev Lett 2013; 110:055303. [PMID: 23414029 DOI: 10.1103/physrevlett.110.055303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Indexed: 06/01/2023]
Abstract
We provide a joint theoretical and experimental investigation of the temperature dependence of the collective oscillations of first sound nature exhibited by a highly elongated harmonically trapped Fermi gas at unitarity, including the region below the critical temperature for superfluidity. Differently from the lowest axial breathing mode, the hydrodynamic frequencies of the higher-nodal excitations show a temperature dependence, which is calculated starting from Landau two-fluid theory and using the available experimental knowledge of the equation of state. The experimental results agree with high accuracy with the predictions of theory and provide the first evidence for the temperature dependence of the collective frequencies near the superfluid phase transition.
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Affiliation(s)
- Meng Khoon Tey
- Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften and Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria
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Hare DJ, Grubman A, Ryan TM, Lothian A, Liddell JR, Grimm R, Matsuda T, Doble PA, Cherny RA, Bush AI, White AR, Masters CL, Roberts BR. Profiling the iron, copper and zinc content in primary neuron and astrocyte cultures by rapid online quantitative size exclusion chromatography-inductively coupled plasma-mass spectrometry. Metallomics 2013; 5:1656-62. [DOI: 10.1039/c3mt00227f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Cikes M, Tong L, Jasaityte R, Hamilton J, Sutherland G, D'hooge J, Yurdakul S, Oner F, Avci BK, Sahin S, Direskeneli H, Aytekin S, Fang F, Chan A, Zhang Q, Sanderson J, Kwong J, Yu C, Zaidi A, Raju H, Ghani S, Gati S, Cox A, Sheikh N, Sharma R, Sharma S, Kutty S, Kottam A, Padiyath A, Gao S, Drvol L, Lof J, Li L, Rangamani S, Danford D, Kuehne T, Rosner A, Avenarius D, Malm S, Iqbal A, Baltabaeva A, Schirmer H, Bijnens B, Myrmel T, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Jorge C, Silva D, Placido R, Goncalves S, Almeida A, Nunes Diogo A, Poulidakis E, Aggeli C, Sideris S, Dilaveris P, Gatzoulis K, Felekos I, Koutagiar I, Sfendouraki E, Roussakis G, Stefanadis C, Zhang Q, Sun J, Gao R, Feng Y, Liu X, Sheng W, Liu F, Yu C, Hallioglu O, Citirik D, Buyukakilli B, Ozeren M, Gurgul S, Tasdelen B, Rodriguez Lopez A, Rodriguez Lopez A, Garcia Cuenllas L, Garcia Cuenllas L, Medrano C, Medrano C, Granja S, Granja S, Marin C, Marin C, Maroto E, Maroto E, Alvarez T, Alvarez T, Ballesteros F, Ballesteros F, Camino M, Camino M, Centeno M, Centeno M, Alraies M, Aljaroudi W, Halley C, Rodriguez L, Grimm R, Thomas J, Jaber W, Knight D, Coghlan J, Muthurangu V, Grasso A, Toumpanakis C, Caplin M, Taylor A, Davar J, Mohlkert LA, Halvorsen C, Hallberg J, Sjoberg G, Norman M, Cameli M, Losito M, Lisi M, Natali B, Massoni A, Maccherini M, Chiavarelli M, Massetti M, Mondillo S, Sljivic A, Stojcevski B, Celic V, Pencic B, Majstorovic A, Cosic Z, Backovic S, Ilic-Djordjevic I, Muraru D, Gripari P, Esposito R, Tamborini G, Galderisi M, Ermacora D, Maffessanti F, Santoro C, Pepi M, Badano L, Bombardini T, Cini D, Picano E, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Banovic M, Vukcevic V, Ostojic M, Markovic Z, Mladenovic A, Trifunovic D, Stojkovic S, Bacic D, Dedovic D, Seferovic P, Huttin O, Coulibaly S, Mercy M, Schwartz J, Zinzius P, Sellal J, Popovic B, Marie P, Juilliere Y, Selton-Suty C, Gurzun MM, Ionescu A, Bahlay B, Jones G, Rimbas R, Enescu O, Mihaila S, Ciobanu A, Vinereanu D, Vlasseros I, Koumoulidis A, Tousoulis D, Veioglanis S, Avgeropoulou A, Katsi V, Stefanadis C, Kallikazaros I, Kiviniemi T, Ylitalo A, Airaksinen K, Lehtinen T, Saraste A, Pietila M, Karjalainen P, Trifunovic D, Ostojic M, Stankovic S, Vujisic-Tesic B, Petrovic M, Banovic M, Boricic M, Draganic G, Petrovic M, Stepanovic J, Kuznetsov V, Yaroslavskaya E, Pushkarev G, Krinochkin D, Zyrianov I, Dekleva M, Stevanovic A, Kleut M, Suzic Lazic J, Markovic Nikolic N, Akhunova S, Saifullina G, Sadykov A, Loudon M, D'arcy J, Arnold L, Reynolds R, Mabbet C, Prendergast B, Dahl J, Videbaek L, Poulsen M, Rudbaek T, Pellikka P, Rasmussen L, Moller J, Lowery C, Frenneaux M, Dawson D, Dwivedi G, Singh S, Rudd A, Mahadevan D, Srinivasan J, Jiminez D, Sahinarslan A, Vecchio F, Maccarthy P, Wendler O, Monaghan M, Harimura Y, Seo Y, Ishizu T, Noguchi Y, Aonuma K, Urdaniz MM, Palomares JFR, Rius JB, Surribas IB, Tura GT, Garcia-Moreno LG, Alujas TG, Masip AE, Mas PT, Dorado DG, Meimoun P, Germain A, Clerc J, Elmkies F, Zemir H, Luycx-Bore A, Nasr GM, Erraki A, Dulgheru R, Magne J, Capoulade R, Elhonsali Z, Pierard LA, Pibarot P, Lancellotti P, Wrideier S, Butz T, Schilling I, Gkiouras G, Sasko B, Van Bracht M, Prull M, Trappe HJ, Castillo Bernal F, Mesa Rubio M, Ruiz Ortiz M, Delgado Ortega M, Morenate Navio M, Baeza Garzon M, Del Pino ML, Toledano Delgado F, Mazuelos F, Suarez de Lezo Herreros de Tejada J, Prinz C, Schumann M, Burghardt A, Seggewiss H, Oldenburg O, Horstkotte D, Faber L, Bistola V, Banner N, Hedger M, Simon A, Rahman Haley S, Baltabaeva A, Adamyan K, Tumasyan LR, Chilingaryan A, Makavos G, Kouris N, Kostopoulos V, Stamatelatou M, Damaskos D, Kartsagoulis E, Olympios C, Sade L, Eroglu S, Bircan A, Pirat B, Sezgin A, Aydinalp A, Muderrisoglu H, Sargento L, Satendra M, Sousa C, Longo S, Lousada N, Dos Reis RP, Kuznetsov V, Krinochkin D, Gapon L, Vershinina A, Shurkevich N, Bessonova M, Yaroslavskaya E, Kolunin G, Sargento L, Satendra M, Sousa C, Lousada N, Dos Reis RP, Azevedo O, Lourenco M, Machado I, Guardado J, Medeiros R, Pereira A, Quelhas I, Lourenco A, Duman D, Sargin F, Kilicaslan B, Inan A, Ozgunes N, Goktas P, Ikonomidis I, Tzortzis S, Paraskevaidis I, Andreadou I, Katseli C, Katsimbri P, Papadakis I, Pavlidis G, Anastasiou-Nana M, Lekakis J, Charalampopoulos A, Howard L, Davies R, Gin-Sing W, Tzoulaki I, Grapsa I, Gibbs J, Dobson RA, Cuthbertson DJ, Burgess M, Lichodziejewska B, Kurnicka K, Goliszek S, Kostrubiec M, Dzikowska-Diduch O, Ciurzynski M, Krupa M, Grudzka K, Palczewski P, Pruszczyk P, Mansencal N, Marcadet D, Montalvan B, Dubourg O, Matveeva N, Nartsissova G, Chernjavskiy A, Eicher JC, Berthier S, Lorcerie B, Philip JL, Wolf JE, Wiesen P, Ledoux D, Massion P, Piret S, Canivet JL, Cusma-Piccione M, Zito C, Imbalzano E, Saitta A, Donato D, Madaffari A, Luzza G, Pipitone V, Tripodi R, Carerj S, Bombardini T, Gherardi S, Arpesella G, Maccherini M, Serra W, Del Bene R, Sicari R, Picano E, Al-Mallah M, Ananthasubramaniam K, Alam M, Chattahi J, Zweig B, Boedeker S, Song T, Khoo J, Davies J, Ang KL, Galinanes M, Chin D, Papamichael ND, Karassavidou D, Mpougialkli M, Antoniou S, Giannitsi S, Chachalos S, Gouva C, Naka K, Katopodis K, Michalis L, Tsang W, Cui V, Ionasec R, Takeuchi M, Houle H, Weinert L, Roberson D, Lang R, Altman M, Aussoleil A, Bergerot C, Sibellas F, Bonnefoy-Cudraz E, Derumeaux GA, Thibault H, Mohamed A, Omran A, Hussein M, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Squeri A, Binno S, Ferdenzi E, Reverberi C, Baldelli M, Barbieri A, Iaccarino D, Naldi M, Bosi S, Kalinowski M, Szulik M, Streb W, Stabryla J, Nowak J, Rybus-Kalinowska B, Kukulski T, Kalarus Z, Ouss A, Riezebos R, Nestaas E, Skranes J, Stoylen A, Brunvand L, Fugelseth D, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Placido R, Jorge C, Silva D, Goncalves S, Almeida A, Nunes Diogo A, Nagy A, Kovats T, Apor A, Nagy A, Vago H, Toth A, Toth M, Merkely B, Ranjbar S, Karvandi M, Hassantash S, Da Silva SG, Marin C, Rodriguez A, Marcos C, Rodriguez-Ogando A, Maroto E, Medrano C, Del Valle DI, Lopez-Fernandez T, Gemma D, Gomez-Rubin M, De Torres F, Feliu J, Canales M, Buno A, Ramirez E, Lopez-Sendon J, Magalhaes A, Silva Marques J, Martins S, Placido R, Silva D, Jorge C, Calisto C, Goncalves S, Almeida A, Nunes Diogo A, Jorge C, Cortez-Dias N, Goncalves S, Ribeiro S, Santos L, Silva D, Barreiros C, Bernardes A, Carpinteiro L, Sousa J, Kim SH, Choi W, Chidambaram S, Arunkumar R, Venkatesan S, Gnanavelu G, Dhandapani V, Ravi M, Karthikeyan G, Meenakshi K, Muthukumar D, Swaminathan N, Vitarelli A, Barilla F, Capotosto L, Truscelli G, Dettori O, Caranci F, D-Angeli I, De Maio M, De Cicco V, Bruno P, Doesch C, Sueselbeck T, Haghi D, Streitner F, Borggrefe M, Papavassiliu T, Laser K, Schaefer F, Fischer M, Habash S, Degener F, Moysich A, Haas N, Kececioglu D, Burchert W, Koerperich H, Dwivedi G, Al-Shehri H, Dekemp R, Ali I, Alghamdi A, Klein R, Scullion A, Beanlands R, Ruddy T, Chow B, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Rotkiewicz A, Stefanczyk L, Szymczyk K, Kasprzak J, Angelov A, Yotov Y, Mircheva L, Kisheva A, Kunchev O, Ikonomidis I, Tsantes A, Triantafyllidi H, Tzortzis S, Dima K, Trivilou P, Papadopoulos C, Travlou A, Anastasiou-Nana M, Lekakis J, Bader R, Agoston-Coldea L, Lupu S, Mocan T, Loegstrup B, Hofsten D, Christophersen T, Moller J, Bjerre M, Flyvbjerg A, Botker H, Egstrup K, Park Y, Choi J, Yun K, Lee S, Han D, Kim J, Kim J, Kim J, Chun K. Poster Session Wednesday 5 December all day Display * Determinants of left ventricular performance. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Stellmer S, Pasquiou B, Grimm R, Schreck F. Creation of ultracold Sr(2) molecules in the electronic ground state. Phys Rev Lett 2012; 109:115302. [PMID: 23005642 DOI: 10.1103/physrevlett.109.115302] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Indexed: 06/01/2023]
Abstract
We report on the creation of ultracold (84)Sr(2) molecules in the electronic ground state. The molecules are formed from atom pairs on sites of an optical lattice using stimulated Raman adiabatic passage (STIRAP). We achieve a transfer efficiency of 30% and obtain 4×10(4) molecules with full control over the external and internal quantum state. STIRAP is performed near the narrow (1)S(0)-(3)P(1) intercombination transition, using a vibrational level of the 1(0(u)(+)) potential as an intermediate state. In preparation of our molecule association scheme, we have determined the binding energies of the last vibrational levels of the 1(0(u)(+)), 1(1(u)) excited-state and the X (1)Σ(g)(+) ground-state potentials. Our work overcomes the previous limitation of STIRAP schemes to systems with magnetic Feshbach resonances, thereby establishing a route that is applicable to many systems beyond alkali-metal dimers.
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Affiliation(s)
- Simon Stellmer
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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Strum JS, Kim J, Wu S, De Leoz MLA, Peacock K, Grimm R, German JB, Mills DA, Lebrilla CB. Identification and accurate quantitation of biological oligosaccharide mixtures. Anal Chem 2012; 84:7793-801. [PMID: 22897719 DOI: 10.1021/ac301128s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Structure-specific characterization and quantitation is often required for effective functional studies of oligosaccharides. Inside the gut, HMOs are preferentially bound and catabolized by the beneficial bacteria. HMO utility by these bacteria employs structure-specific catabolism based on a number of glycosidases. Determining the activity of these enzymes requires accurate quantitation of a large number of structures. In this study, we describe a method for the quantitation of human milk oligosaccharide (HMO) structures employing LC/MS and isotopically labeled internal standards. Data analysis was accomplished with a newly developed software tool, LC/MS Searcher, that employs a reference structure library to process LC/MS data yielding structural identification with accurate quantitation. The method was used to obtain a meta-enzyme analysis of bacteria, the simultaneous characterization of all glycosidases employed by bacteria for the catabolism of milk oligosaccharides. Analysis of consumed HMO structures confirmed the utility of a β-1,3-galactosidase in Bifidobacterium longum subsp. infantis ATCC 15697 (B. infantis). In comparison, Bifidobacterium breve ATCC 15700 showed significantly less HMO catabolic activity compared to B. infantis.
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Affiliation(s)
- John S Strum
- Department of Chemistry, University of California, Davis, 95616, United States
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Wu S, Salcedo J, Tang N, Waddell K, Grimm R, German JB, Lebrilla CB. Employment of tandem mass spectrometry for the accurate and specific identification of oligosaccharide structures. Anal Chem 2012; 84:7456-62. [PMID: 22867103 DOI: 10.1021/ac301398h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A method is described for the rapid identification of oligosaccharides employing a library of tandem MS spectra. Identification is aided by software that compares the sample tandem MS to those in the library. The method incorporates quadrupole time-of-flight mass spectrometry along with an annotated oligosaccharide (OS) structure library and the MassHunter Personal Compound Database and Library (PCDL) software. With an automated spectra search, OS structures in different samples are readily identified. This method is shown to be useful in the study of milk oligosaccharides but can be readily applied to oligosaccharide pools in other biological tissues.
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Affiliation(s)
- Shuai Wu
- Department of Chemistry, University of California, Davis, California 95616, United States
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Kinsinger CR, Apffel J, Baker M, Bian X, Borchers CH, Bradshaw R, Brusniak MY, Chan DW, Deutsch EW, Domon B, Gorman J, Grimm R, Hancock W, Hermjakob H, Horn D, Hunter C, Kolar P, Kraus HJ, Langen H, Linding R, Moritz RL, Omenn GS, Orlando R, Pandey A, Ping P, Rahbar A, Rivers R, Seymour SL, Simpson RJ, Slotta D, Smith RD, Stein SE, Tabb DL, Tagle D, Yates JR, Rodriguez H. Recommendations for mass spectrometry data quality metrics for open access data (corollary to the Amsterdam principles). Proteomics Clin Appl 2012; 5:580-9. [PMID: 22213554 DOI: 10.1002/prca.201100097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Policies supporting the rapid and open sharing of proteomic data are being implemented by the leading journals in the field. The proteomics community is taking steps to ensure that data are made publicly accessible and are of high quality, a challenging task that requires the development and deployment of methods for measuring and documenting data quality metrics. On September 18, 2010, the U.S. National Cancer Institute (NCI) convened the "International Workshop on Proteomic Data Quality Metrics" in Sydney, Australia, to identify and address issues facing the development and use of such methods for open access proteomics data. The stakeholders at the workshop enumerated the key principles underlying a framework for data quality assessment in mass spectrometry data that will meet the needs of the research community, journals, funding agencies, and data repositories. Attendees discussed and agreed up on two primary needs for the wide use of quality metrics: (i) an evolving list of comprehensive quality metrics and (ii) standards accompanied by software analytics. Attendees stressed the importance of increased education and training programs to promote reliable protocols in proteomics. This workshop report explores the historic precedents, key discussions, and necessary next steps to enhance the quality of open access data. By agreement, this article is published simultaneously in Proteomics, Proteomics Clinical Applications, Journal of Proteome Research, and Molecular and Cellular Proteomics, as a public service to the research community. The peer review process was a coordinated effort conducted by a panel of referees selected by the journals.
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Affiliation(s)
- Christopher R Kinsinger
- Office of Cancer Clinical Proteomics Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Lee H, Lerno LA, Choe Y, Chu CS, Gillies LA, Grimm R, Lebrilla CB, German JB. Multiple precursor ion scanning of gangliosides and sulfatides with a reversed-phase microfluidic chip and quadrupole time-of-flight mass spectrometry. Anal Chem 2012; 84:5905-12. [PMID: 22697387 DOI: 10.1021/ac300254d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Precise profiling of polar lipids including gangliosides and sulfatides is a necessary step in understanding the diverse physiological role of these lipids. We have established an efficient method for the profiling of polar lipids using reversed-phase nano high-performance liquid chromatography microfluidic chip quadrupole time-of-flight mass spectrometry (nano-HPLC-chip Q-TOF/MS). A microfluidic chip design provides improved chromatographic performance, efficient separation, and stable nanospray while the advanced high-resolution mass spectrometer allowed for the identification of complex isobaric polar lipids such as NeuAc- and NeuGc-containing gangliosides. Lipid classes were identified based on the characteristic fragmentation product ions generated during data-dependent tandem mass spectrometry (MS/MS) experiments. Each class was monitored by a postprocessing precursor ion scan. Relatively simple quantitation and identification of intact ions was possible due to the reproducible retention times provided by the nano-HPLC chip. The method described in this paper was used to profile polar lipids from mouse brain, which was found to contain 17 gangliosides and 13 sulfatides. Types and linkages of the monosaccharides and their acetyl modifications were identified by low-energy collision-induced dissociation (CID) (40 V), and the type of sphingosine base was identified by higher energy CID (80 V). Accurate mass measurements and chromatography unveiled the degree of unsaturation and hydroxylation in the ceramide lipid tails.
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Affiliation(s)
- Hyeyoung Lee
- Department of Food Science and Technology, University of California, Davis, California 95616, United States
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Bronfort G, Evans R, Anderson A, Svendsen K, Bracha Y, Grimm R. OA14.04. A randomized controlled trial of spinal manipulation, medication or home exercise for acute and subacute neck pain. BMC Complement Altern Med 2012. [PMCID: PMC3373740 DOI: 10.1186/1472-6882-12-s1-o56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Maiers M, Bronfort G, Evans R, Hartvigsen J, Svendsen K, Bracha Y, Schulz C, Schulz K, Grimm R. OA06.03. Spinal manipulative therapy, supervised rehabilitative exercise and home exercise for seniors with neck pain. BMC Complement Altern Med 2012. [PMCID: PMC3373326 DOI: 10.1186/1472-6882-12-s1-o23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Aikawa K, Frisch A, Mark M, Baier S, Rietzler A, Grimm R, Ferlaino F. Bose-Einstein condensation of erbium. Phys Rev Lett 2012; 108:210401. [PMID: 23003221 DOI: 10.1103/physrevlett.108.210401] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Indexed: 06/01/2023]
Abstract
We report on the achievement of Bose-Einstein condensation of erbium atoms and on the observation of magnetic Feshbach resonances at low magnetic fields. By means of evaporative cooling in an optical dipole trap, we produce pure condensates of 168Er, containing up to 7×10(4) atoms. Feshbach spectroscopy reveals an extraordinary rich loss spectrum with six loss resonances already in a narrow magnetic-field range up to 3 G. Finally, we demonstrate the application of a low-field Feshbach resonance to produce a tunable dipolar Bose-Einstein condensate and we observe its characteristic d-wave collapse.
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Affiliation(s)
- K Aikawa
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, Innsbruck, Austria
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