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Tuna F, Üstündağ A, Başak Can H, Tuna H. Rapid Geriatric Assessment, Physical Activity, and Sleep Quality in Adults Aged more than 65 Years: A Preliminary Study. J Nutr Health Aging 2019; 23:617-622. [PMID: 31367725 DOI: 10.1007/s12603-019-1212-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE (1) To evaluate geriatric syndromes using the Rapid Geriatric Assessment; (2) To investigate possible association of geriatric syndomes with physical activity and sleep quality in adults aged more than 65 years who applied to outpatients physical medicine and rehabilitation clinic. DESIGN A cross-sectional study. SETTING Outpatient physical medicine and rehabilitation clinic in Edirne, Turkey. PARTICIPANTS A total of 56 adults (mean aged 69.7 ± 4.0 (range, 65-80) years, 33 women). MEASUREMENTS The Rapid Geriatric Assessment, which includes the FRAIL Questionnaire Screening Tool for frailty, Simplified Nutritional Assessment Questionnaire (SNAQ), SARC-F Screen for Sarcopenia, and Rapid Cognitive Screen (RCS), was used to assess geriatric syndromes. The International Physical Activity Questionnaire (IPAQ) was used to obtain data regarding health-related physical activity. The Pittsburgh Sleep Quality Index (PSQI) was used to measure sleep quality during the past month. RESULTS The mean age of the patients was 69.7 ± 4.0 years. Of the 56 patients, 12.5% were frail, 50.0% were pre-frail, 35.7% had sarcopenia, 44.6% had a risk of weight loss, 33.9% had dementia, 57.1% were physically inactive, and 53.6% had poor sleep quality. The total FRAIL and SARC-F scores were positively correlated with the global PSQI score (correlation coefficient (r) = 0.300, p < 0.05; r = 0,327, p < 0.05, respectively) and negatively correlated with the total RCS score (r= -0,267, p < 0.05; r = -0,314, p < 0.05, respectively)). The total FRAIL score was positively correlated with the SARC-F score (r = 0.695, p < 0.001), and the concurrence of frailty and sarcopenia in the same patients was 10.7%. The global PSQI score was negatively correlated with the SNAQ score (r = -0.273, p < 0.05). CONCLUSION Frailty and sarcopenia were positively correlated with poor sleep quality and negatively correlated with cognition and physical activity. In clinical practice, the Rapid Geriatric Assessment and determination of physical activity level could assist in disability prevention.
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Affiliation(s)
- F Tuna
- Filiz Tuna, MD. Department of Physical Therapy and Rehabilitation, Trakya University Faculty of Health Science, Edirne, Turkey, , , Telephone: +90 284 2133042 (Ext.:2200), Fax. +90 284 212 61 07
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McAdams SG, Lewis DJ, McNaughter PD, Lewis EA, Haigh SJ, O’Brien P, Tuna F. High magnetic relaxivity in a fluorescent CdSe/CdS/ZnS quantum dot functionalized with MRI contrast molecules. Chem Commun (Camb) 2017; 53:10500-10503. [DOI: 10.1039/c7cc05537d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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
Fluorescent quantum dots functionalized with Gd(iii) MRI contrast agents produce an unprecedentedly high T1 relaxivity per particle (6800 mM−1 s−1).
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Affiliation(s)
| | - D. J. Lewis
- School Of Chemistry
- University of Manchester
- UK
- School of Materials
- University of Manchester
| | | | - E. A. Lewis
- School of Materials
- University of Manchester
- UK
| | - S. J. Haigh
- School of Materials
- University of Manchester
- UK
| | - P. O’Brien
- School Of Chemistry
- University of Manchester
- UK
- School of Materials
- University of Manchester
| | - F. Tuna
- School Of Chemistry
- University of Manchester
- UK
- Photon Science Institute
- University of Manchester
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Douglas FJ, MacLaren DA, Maclean N, Andreu I, Kettles FJ, Tuna F, Berry CC, Castro M, Murrie M. Gadolinium-doped magnetite nanoparticles from a single-source precursor. RSC Adv 2016. [DOI: 10.1039/c6ra18095g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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
A single source bimetallic precursor is used in the synthesis of octahedral Gd:Fe3O4nanoparticles in order to reduce separate nucleation.
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Affiliation(s)
- F. J. Douglas
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow G12 8QQ
- UK
| | - D. A. MacLaren
- SUPA
- School of Physics and Astronomy
- The University of Glasgow
- Glasgow G12 8QQ
- UK
| | - N. Maclean
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow G12 8QQ
- UK
| | - I. Andreu
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- 50018 Zaragoza
- Spain
| | - F. J. Kettles
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow G12 8QQ
- UK
| | - F. Tuna
- National EPR Centre
- University of Manchester
- Manchester
- UK
| | - C. C. Berry
- Centre for Cell Engineering
- CMVLS
- University of Glasgow
- Glasgow G12 8QQ
- UK
| | - M. Castro
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- 50018 Zaragoza
- Spain
| | - M. Murrie
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow G12 8QQ
- UK
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Jiménez JR, Mondal A, Chamoreau LM, Fertey P, Tuna F, Julve M, Bousseksou A, Lescouëzec R, Lisnard L. An {Fe60} tetrahedral cage: building nanoscopic molecular assemblies through cyanometallate and alkoxo linkers. Dalton Trans 2016; 45:17610-17615. [DOI: 10.1039/c6dt03151j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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]
Abstract
A nanoscopic {Fe60} coordination cage (approximately 3 nm) was prepared by the self assembly of a partially blocked tricyanidoferrate(iii) complex and tris(alkoxo)-based iron(iii) coordination motifs.
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Affiliation(s)
- J.-R. Jiménez
- Sorbonne Universités
- UPMC Univ. Paris 06
- UMR 8232
- IPCM
- Paris
| | - A. Mondal
- Sorbonne Universités
- UPMC Univ. Paris 06
- UMR 8232
- IPCM
- Paris
| | | | - P. Fertey
- Synchrotron SOLEIL
- F-91192 Gif Sur Yvette
- France
| | - F. Tuna
- School of Chemistry and Photon Science Institute
- The University of Manchester
- Manchester
- UK
| | - M. Julve
- Universitat de València
- Instituto de Ciencia Molecular
- 46980 Paterna
- Spain
| | - A. Bousseksou
- Laboratoire de Chimie de Coordination
- CNRS
- UPR 8241
- 31077 Toulouse Cedex 04
- France
| | - R. Lescouëzec
- Sorbonne Universités
- UPMC Univ. Paris 06
- UMR 8232
- IPCM
- Paris
| | - L. Lisnard
- Sorbonne Universités
- UPMC Univ. Paris 06
- UMR 8232
- IPCM
- Paris
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Byrne JM, Coker VS, Moise S, Wincott PL, Vaughan DJ, Tuna F, Arenholz E, van der Laan G, Pattrick RAD, Lloyd JR, Telling ND. Controlled cobalt doping in biogenic magnetite nanoparticles. J R Soc Interface 2013; 10:20130134. [PMID: 23594814 PMCID: PMC3645421 DOI: 10.1098/rsif.2013.0134] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 03/25/2013] [Indexed: 12/15/2022] Open
Abstract
Cobalt-doped magnetite (CoxFe3 -xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by superconducting quantum interference device magnetometry, X-ray magnetic circular dichroism, Mössbauer spectroscopy, etc., show dramatic increases in coercivity with increasing cobalt content without a major decrease in overall saturation magnetization. Structural and magnetization analyses reveal a reduction in particle size to less than 4 nm at the highest Co content, combined with an increase in the effective anisotropy of the magnetic nanoparticles. The potential use of these biogenic nanoparticles in aqueous suspensions for magnetic hyperthermia applications is demonstrated. Further analysis of the distribution of cations within the ferrite spinel indicates that the cobalt is predominantly incorporated in octahedral coordination, achieved by the substitution of Fe(2+) site with Co(2+), with up to 17 per cent Co substituted into tetrahedral sites.
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Affiliation(s)
- J M Byrne
- School of Earth, Atmospheric and Environmental Sciences, Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester, UK.
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Tuna H, Çermik T, Tuna F. Monitoring of renal function using 99mTc-DMSA and 99mTc-DTPA scintigraphy in patients with spinal cord injury. Rev Esp Med Nucl Imagen Mol 2012. [DOI: 10.1016/j.remnie.2012.10.002] [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: 11/26/2022]
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Wedge CJ, Timco GA, Spielberg ET, George RE, Tuna F, Rigby S, McInnes EJL, Winpenny REP, Blundell SJ, Ardavan A. Chemical engineering of molecular qubits. Phys Rev Lett 2012; 108:107204. [PMID: 22463450 DOI: 10.1103/physrevlett.108.107204] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Indexed: 05/05/2023]
Abstract
We show that the electron spin phase memory time, the most important property of a molecular nanomagnet from the perspective of quantum information processing, can be improved dramatically by chemically engineering the molecular structure to optimize the environment of the spin. We vary systematically each structural component of the class of antiferromagnetic Cr(7)Ni rings to identify the sources of decoherence. The optimal structure exhibits a phase memory time exceeding 15 μs.
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Affiliation(s)
- C J Wedge
- Centre for Advanced Electron Spin Resonance, Clarendon Laboratory, Department of Physics, University of Oxford, OX1 3PU, United Kingdom
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Byrne JM, Telling ND, Coker VS, Pattrick RAD, van der Laan G, Arenholz E, Tuna F, Lloyd JR. Control of nanoparticle size, reactivity and magnetic properties during the bioproduction of magnetite by Geobacter sulfurreducens. Nanotechnology 2011; 22:455709. [PMID: 22020365 DOI: 10.1088/0957-4484/22/45/455709] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The bioproduction of nanoscale magnetite by Fe(III)-reducing bacteria offers a potentially tunable, environmentally benign route to magnetic nanoparticle synthesis. Here, we demonstrate that it is possible to control the size of magnetite nanoparticles produced by Geobacter sulfurreducens by adjusting the total biomass introduced at the start of the process. The particles have a narrow size distribution and can be controlled within the range of 10-50 nm. X-ray diffraction analysis indicates that controlled production of a number of different biominerals is possible via this method including goethite, magnetite and siderite, but their formation is strongly dependent upon the rate of Fe(III) reduction and total concentration and rate of Fe(II) produced by the bacteria during the reduction process. Relative cation distributions within the structure of the nanoparticles have been investigated by x-ray magnetic circular dichroism and indicate the presence of a highly reduced surface layer which is not observed when magnetite is produced through abiotic methods. The enhanced Fe(II)-rich surface, combined with small particle size, has important environmental applications such as in the reductive bioremediation of organics, radionuclides and metals. In the case of Cr(VI), as a model high-valence toxic metal, optimized biogenic magnetite is able to reduce and sequester the toxic hexavalent chromium very efficiently to the less harmful trivalent form.
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Affiliation(s)
- J M Byrne
- School of Earth, Atmospheric and Environmental Sciences and Williamson Research Centre for Molecular Environmental Science, University of Manchester, Manchester M13 9PL, UK.
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Sepioni M, Nair RR, Rablen S, Narayanan J, Tuna F, Winpenny R, Geim AK, Grigorieva IV. Limits on intrinsic magnetism in graphene. Phys Rev Lett 2010; 105:207205. [PMID: 21231263 DOI: 10.1103/physrevlett.105.207205] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Indexed: 05/30/2023]
Abstract
We have studied magnetization of graphene nanocrystals obtained by sonic exfoliation of graphite. No ferromagnetism is detected at any temperature down to 2 K. Neither do we find strong paramagnetism expected due to the massive amount of edge defects. Rather, graphene is strongly diamagnetic, similar to graphite. Our nanocrystals exhibit only a weak paramagnetic contribution noticeable below 50 K. The measurements yield a single species of defects responsible for the paramagnetism, with approximately one magnetic moment per typical graphene crystallite.
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Affiliation(s)
- M Sepioni
- Manchester Centre for Mesoscience & Nanotechnology, University of Manchester, Manchester M13 9PL, United Kingdom
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Mourdikoudis S, Simeonidis K, Gloystein K, Angelakeris M, Dendrinou-Samara C, Tuna F, Kalogirou O. Size-induced effects in wet-chemically synthesized CoPt3 nanoparticles. J Nanosci Nanotechnol 2010; 10:6087-6092. [PMID: 21133153 DOI: 10.1166/jnn.2010.2602] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
CoPt3 alloy spherical nanoparticles with sizes tuned between 3-7 nm were produced by the simultaneous thermal treatment of proper platinum and cobalt precursors in the presence of surfactants. The final size and composition of the particles are determined by the precursors' ratio, the chemical behavior of Co precursors and the stabilizing efficiency of the surfactants. By employing higher reaction temperatures (approximately 350 degrees C) better alloying is achieved leading to enhancement of macroscopic magnetic features and decrease of the superparamagnetic limit down to 7 nm.
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Affiliation(s)
- S Mourdikoudis
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Candini A, Lorusso G, Troiani F, Ghirri A, Carretta S, Santini P, Amoretti G, Muryn C, Tuna F, Timco G, McInnes EJL, Winpenny REP, Wernsdorfer W, Affronte M. Entanglement in supramolecular spin systems of two weakly coupled antiferromagnetic rings (purple-Cr7Ni). Phys Rev Lett 2010; 104:037203. [PMID: 20366678 DOI: 10.1103/physrevlett.104.037203] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 08/28/2009] [Indexed: 05/29/2023]
Abstract
We characterize supramolecular magnetic structures, consisting of two weakly coupled antiferromagnetic rings, by low-temperature specific heat, susceptibility, magnetization and electron paramagnetic resonance measurements. Intra- and inter-ring interactions are modeled through a microscopic spin-Hamiltonian approach that reproduces all the experimental data quantitatively and legitimates the use of an effective two-qubit picture. Spin entanglement between the rings is experimentally demonstrated through magnetic susceptibility below 50 mK and theoretically quantified by the concurrence.
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Affiliation(s)
- A Candini
- National Research Center on nanoStructures and bioSystems at Surfaces (S3), CNR-INFM, 41100 Modena, Italy
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Kozłowski P, Kamieniarz G, Antkowiak M, Tuna F, Timco G, Winpenny R. Phenomenological modeling of the anisotropic molecular-based ring. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.02.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Savitha Pillai S, Santhosh PN, Harish Kumar N, John Thomas P, Tuna F. Cluster glass properties and magnetic phase separation studies of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4). J Phys Condens Matter 2009; 21:195409. [PMID: 21825487 DOI: 10.1088/0953-8984/21/19/195409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The crystal structure, dc and ac magnetic susceptibility, electron spin resonance and magnetoresistive behavior of Nd(x)Bi(0.5-x)Sr(0.5)MnO(3) (x = 0.1, 0.2, 0.3 and 0.4) compounds are studied. The Rietveld analysis of the XRD data shows that the samples crystallize in an orthorhombic perovskite structure, with Pbnm space group for x = 0.1 and 0.2 and Imma space group for x = 0.4 and 0.3. Magnetic studies reveal that substituting Bi with Nd collapses the robust charge ordered AFM state of Bi(0.5)Sr(0.5)MnO(3) to an inhomogeneous magnetic state. As Nd concentration increases there is a gradual appearance of cluster glass behavior. ESR studies reveal that the NBSMO system phase separates into ferromagnetic and antiferromagnetic regions below the transition temperature.
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Affiliation(s)
- S Savitha Pillai
- Department of Physics, Indian Institute of Technology, Madras, Tamil Nadu 600036, India
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Revenko MD, Bourosh PN, Stratulat EF, Corja ID, Gdaniec M, Simonov YA, Tuna F. Copper(II) coordination compounds with 8-quinolinaldehyde semicarbazone: Synthesis and structure. RUSS J INORG CHEM+ 2009. [DOI: 10.1134/s003602360904007x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Passive smoking, especially of maternal origin, is known to influence adversely the development of children's pulmonary function. In this study, the effect of parental smoking on the pulmonary function of 360 primary school children aged 9-13 (mean 10.8 +/- 0.7) years was investigated. Information on parental smoking history was collected using a questionnaire, and spirometric measurements were performed on the children. All spirometric indices were lower in children who had been passively exposed to parental tobacco smoke than those not exposed. The percentage of households in which at least one parent smoked was 81.5%. This figure was significantly lower for mothers (27.5%) than for fathers (79%). Paternal smoking was associated with reduced levels of forced expiratory flow between 25-75% of vital capacity, peak expiratory flow, and flow rates after 50% and 75% of vital capacity expired (p < 0.05). Maternal smoking did not have statistically significant adverse effects on children's pulmonary function. This result might be due to the low occurrence of either pre- or post-natal smoking among mothers and confirms that, in our population, the main target group for antitobacco campaigns should be fathers.
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Affiliation(s)
- K Bek
- Department of Pediatric Allergy, Dr Sami Ulus Children's Hospital, Ankara, Turkey
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Affiliation(s)
- N Senbil
- Department of Pediatrics, Dr. Sami Ulus Children's Hospital, Ankara, Turkey. asahin 64 neuron.ato.org.tr
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