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Sárközy M, Szűcs G, Fekete V, Pipicz M, Éder K, Gáspár R, Sója A, Pipis J, Ferdinandy P, Csonka C, Csont T. Transcriptomic alterations in the heart of non-obese type 2 diabetic Goto-Kakizaki rats. Cardiovasc Diabetol 2016; 15:110. [PMID: 27496100 PMCID: PMC4975916 DOI: 10.1186/s12933-016-0424-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/14/2016] [Indexed: 12/22/2022] Open
Abstract
Background There is a spectacular rise in the global prevalence of type 2 diabetes mellitus (T2DM) due to the worldwide obesity epidemic. However, a significant proportion of T2DM patients are non-obese and they also have an increased risk of cardiovascular diseases. As the Goto-Kakizaki (GK) rat is a well-known model of non-obese T2DM, the goal of this study was to investigate the effect of non-obese T2DM on cardiac alterations of the transcriptome in GK rats. Methods Fasting blood glucose, serum insulin and cholesterol levels were measured at 7, 11, and 15 weeks of age in male GK and control rats. Oral glucose tolerance test and pancreatic insulin level measurements were performed at 11 weeks of age. At week 15, total RNA was isolated from the myocardium and assayed by rat oligonucleotide microarray for 41,012 genes, and then expression of selected genes was confirmed by qRT-PCR. Gene ontology and protein–protein network analyses were performed to demonstrate potentially characteristic gene alterations and key genes in non-obese T2DM. Results Fasting blood glucose, serum insulin and cholesterol levels were significantly increased, glucose tolerance and insulin sensitivity were significantly impaired in GK rats as compared to controls. In hearts of GK rats, 204 genes showed significant up-regulation and 303 genes showed down-regulation as compared to controls according to microarray analysis. Genes with significantly altered expression in the heart due to non-obese T2DM includes functional clusters of metabolism (e.g. Cyp2e1, Akr1b10), signal transduction (e.g. Dpp4, Stat3), receptors and ion channels (e.g. Sln, Chrng), membrane and structural proteins (e.g. Tnni1, Mylk2, Col8a1, Adam33), cell growth and differentiation (e.g. Gpc3, Jund), immune response (e.g. C3, C4a), and others (e.g. Lrp8, Msln, Klkc1, Epn3). Gene ontology analysis revealed several significantly enriched functional inter-relationships between genes influenced by non-obese T2DM. Protein–protein interaction analysis demonstrated that Stat is a potential key gene influenced by non-obese T2DM. Conclusions Non-obese T2DM alters cardiac gene expression profile. The altered genes may be involved in the development of cardiac pathologies and could be potential therapeutic targets in non-obese T2DM. Electronic supplementary material The online version of this article (doi:10.1186/s12933-016-0424-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Márta Sárközy
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Gergő Szűcs
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary.,Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Veronika Fekete
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Márton Pipicz
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Katalin Éder
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Renáta Gáspár
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Andrea Sója
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | | | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary.,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Csaba Csonka
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Tamás Csont
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary.
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Kiss K, Fekete V, Pálóczi J, Sárközy M, Murlasits Z, Pipis J, Kheyfets IA, Dugina JL, Sergeeva SA, Epstein OI, Csonka C, Csont T, Ferdinandy P, Bencsik P. Renin-Angiotensin-Aldosterone Signaling Inhibitors-Losartan, Enalapril, and Cardosten-Prevent Infarction-induced Heart Failure Development in Rats. Altern Ther Health Med 2016; 22:10-17. [PMID: 27036051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT The activation of the renin-angiotensin-aldosterone system (RAAS) plays an important role in the pathophysiology of congestive heart failure, which is the reason that angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin 2 receptor blockers (ARBs) have become established therapies for heart failure. However, it is still not known whether preventive treatment with losartan or enalapril can reduce symptoms of infarction-induced heart failure. Ultra-low dose (ULD) drug therapy is thought to exert specific activity, with a lower chance of side effects. OBJECTIVES • The research team had hypothesized that preventive treatment with inhibitors of RAAS signaling-losartan, enalapril, and a preparation of a ULD antibody (ie, cardosten), which target the angiotensin type 1 (AT1) receptor-might alleviate pathological hypertrophy and/or functional decline in infarction-induced heart failure. METHODS The research team treated male Wistar rats orally for 30 d with 20 mg/kg of losartan, 10 mg/kg enalapril, 5 or 7.5 mL/kg of cardosten, or a control solution, started 1 d prior to permanent coronary occlusion. A sham-operated group functioned as a second control group. SETTINGS The study was conducted at the Department of Biochemistry of the Faculty of Medicine at the University of Szeged in Szeged, Hungary, in cooperation with the Pharmahungary Group, also in Szeged, Hungary, and with OOO "NPF" Materia Medica Holding Ltd in Moscow, Russia. OUTCOME MEASURES To determine cardiac functional parameters in vivo, the research team inserted a catheter into the left ventricle of the rats and measured the parameters of ventricular pressure, and cardiac output was determined by thermodilution. Morphological parameters were measured after heart isolation in transverse sections by a digital caliper. RESULTS A total of 30 d after permanent coronary ligation, both losartan and enalapril, significantly decreased mean arterial blood pressure (MABP), attenuated the development of the left-ventricular anterior-wall and septum hypertrophy, and reduced scar thickness compared with the vehicle control group. The deterioration of cardiac output and the increase in total peripheral resistance (TPR) due to coronary ligation were significantly inhibited by both losartan and enalapril. The effects of cardosten were comparable with those of losartan and enalapril on cardiac morphology, left ventricular function, and TPR; however, it did not influence MABP. Moreover, in contrast to losartan and enalapril, cardosten did not decrease the rate of survival. CONCLUSIONS The study was the first to have demonstrated that preventive treatment with losartan, enalapril, or cardosten can attenuate pathological hypertrophy in infarction-induced heart failure in rats.
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Sárközy M, Szűcs G, Pipicz M, Zvara Á, Éder K, Fekete V, Szűcs C, Bárkányi J, Csonka C, Puskás LG, Kónya C, Ferdinandy P, Csont T. The effect of a preparation of minerals, vitamins and trace elements on the cardiac gene expression pattern in male diabetic rats. Cardiovasc Diabetol 2015; 14:85. [PMID: 26126619 PMCID: PMC4499218 DOI: 10.1186/s12933-015-0248-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 06/17/2015] [Indexed: 02/06/2023] Open
Abstract
Background Diabetic patients have an increased risk of developing cardiovascular diseases, which are the leading cause of death in developed countries. Although multivitamin products are widely used as dietary supplements, the effects of these products have not been investigated in the diabetic heart yet. Therefore, here we investigated if a preparation of different minerals, vitamins, and trace elements (MVT) affects the cardiac gene expression pattern in experimental diabetes. Methods Two-day old male Wistar rats were injected with streptozotocin (i.p. 100 mg/kg) or citrate buffer to induce diabetes. From weeks 4 to 12, rats were fed with a vehicle or a MVT preparation. Fasting blood glucose measurement and oral glucose tolerance test were performed at week 12, and then total RNA was isolated from the myocardium and assayed by rat oligonucleotide microarray for 41012 oligonucleotides. Results Significantly elevated fasting blood glucose concentration and impaired glucose tolerance were markedly improved by MVT-treatment in diabetic rats at week 12. Genes with significantly altered expression due to diabetes include functional clusters related to cardiac hypertrophy (e.g. caspase recruitment domain family, member 9; cytochrome P450, family 26, subfamily B, polypeptide; FXYD domain containing ion transport regulator 3), stress response (e.g. metallothionein 1a; metallothionein 2a; interleukin-6 receptor; heme oxygenase (decycling) 1; and glutathione S-transferase, theta 3), and hormones associated with insulin resistance (e.g. resistin; FK506 binding protein 5; galanin/GMAP prepropeptide). Moreover the expression of some other genes with no definite cardiac function was also changed such as e.g. similar to apolipoprotein L2; brain expressed X-linked 1; prostaglandin b2 synthase (brain). MVT-treatment in diabetic rats showed opposite gene expression changes in the cases of 19 genes associated with diabetic cardiomyopathy. In healthy hearts, MVT-treatment resulted in cardiac gene expression changes mostly related to immune response (e.g. complement factor B; complement component 4a; interferon regulatory factor 7; hepcidin). Conclusions MVT-treatment improved diagnostic markers of diabetes. This is the first demonstration that MVT-treatment significantly alters cardiac gene expression profile in both control and diabetic rats. Our results and further studies exploring the mechanistic role of individual genes may contribute to the prevention or diagnosis of cardiac complications in diabetes. Electronic supplementary material The online version of this article (doi:10.1186/s12933-015-0248-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Márta Sárközy
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - Gergő Szűcs
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - Márton Pipicz
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - Ágnes Zvara
- Institute of Genetics, Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary.
| | - Katalin Éder
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary.
| | - Veronika Fekete
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | | | | | - Csaba Csonka
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - László G Puskás
- Institute of Genetics, Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary.
| | - Csaba Kónya
- Béres Pharmaceuticals Ltd, Budapest, Hungary.
| | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary. .,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.
| | - Tamás Csont
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary.
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Sárközy M, Fekete V, Szűcs G, Török S, Szűcs C, Bárkányi J, Varga ZV, Földesi I, Csonka C, Kónya C, Csont T, Ferdinandy P. Anti-diabetic effect of a preparation of vitamins, minerals and trace elements in diabetic rats: a gender difference. BMC Endocr Disord 2014; 14:72. [PMID: 25160946 PMCID: PMC4170941 DOI: 10.1186/1472-6823-14-72] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Accepted: 08/18/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Although multivitamin products are widely used as dietary supplements to maintain health or as special medical food in certain diseases, the effects of these products were not investigated in diabetes mellitus, a major cardiovascular risk factor. Therefore, here we investigated if a preparation of different minerals, vitamins, and trace elements (MVT) for human use affects the severity of experimental diabetes. METHODS Two days old neonatal Wistar rats from both genders were injected with 100 mg/kg of streptozotocin or its vehicle to induce diabetes. At week 4, rats were fed with an MVT preparation or vehicle for 8 weeks. Well established diagnostic parameters of diabetes, i.e. fasting blood glucose and oral glucose tolerance test were performed at week 4, 8 and 12. Moreover, serum insulin and blood HbA1c were measured at week 12. RESULTS An impaired glucose tolerance has been found in streptozotocin-treated rats in both genders at week 4. In males, fasting blood glucose and HbA1c were significantly increased and glucose tolerance and serum insulin was decreased at week 12 in the vehicle-treated diabetic group as compared to the vehicle-treated non-diabetic group. All of the diagnostic parameters of diabetes were significantly improved by MVT treatment in male rats. In females, streptozotocin treatment resulted in a less severe prediabetic-like phenotype as only glucose tolerance and HbA1c were altered by the end of the study in the vehicle-treated diabetic group as compared to the vehicle-treated non-diabetic group. MVT treatment failed to improve the diagnostic parameters of diabetes in female streptozotocin-treated rats. CONCLUSION This is the first demonstration that MVT significantly attenuates the progression of diabetes in male rats with chronic experimental diabetes. Moreover, we have confirmed that females are less sensitive to STZ-induced diabetes and MVT preparation did not show protection against prediabetic state. This may suggest a gender difference in the pathogenesis of diabetes.
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Affiliation(s)
- Márta Sárközy
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Veronika Fekete
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Gergő Szűcs
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Szilvia Török
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | | | | | - Zoltán V Varga
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Imre Földesi
- Department of Laboratory Medicine, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Csaba Csonka
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Csaba Kónya
- Béres Pharmaceuticals Ltd, Budapest, Hungary
| | - Tamás Csont
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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Magnier A, Fekete V, Van Loco J, Bolle F, Elskens M. Speciation study of aluminium in beverages by Competitive Ligand Exchange–Adsorptive Stripping Voltammetry. Talanta 2014; 122:30-5. [DOI: 10.1016/j.talanta.2013.12.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/16/2013] [Accepted: 12/24/2013] [Indexed: 11/24/2022]
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Sárközy M, Zvara Á, Gyémánt N, Fekete V, Kocsis GF, Pipis J, Szűcs G, Csonka C, Puskás LG, Ferdinandy P, Csont T. Metabolic syndrome influences cardiac gene expression pattern at the transcript level in male ZDF rats. Cardiovasc Diabetol 2013; 12:16. [PMID: 23320804 PMCID: PMC3599923 DOI: 10.1186/1475-2840-12-16] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Accepted: 01/05/2013] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Metabolic syndrome (coexisting visceral obesity, dyslipidemia, hyperglycemia, and hypertension) is a prominent risk factor for cardiovascular morbidity and mortality, however, its effect on cardiac gene expression pattern is unclear. Therefore, we examined the possible alterations in cardiac gene expression pattern in male Zucker Diabetic Fatty (ZDF) rats, a model of metabolic syndrome. METHODS Fasting blood glucose, serum insulin, cholesterol and triglyceride levels were measured at 6, 16, and 25 wk of age in male ZDF and lean control rats. Oral glucose tolerance test was performed at 16 and 25 wk of age. At week 25, total RNA was isolated from the myocardium and assayed by rat oligonucleotide microarray for 14921 genes. Expression of selected genes was confirmed by qRT-PCR. RESULTS Fasting blood glucose, serum insulin, cholesterol and triglyceride levels were significantly increased, glucose tolerance and insulin sensitivity were impaired in ZDF rats compared to leans. In hearts of ZDF rats, 36 genes showed significant up-regulation and 49 genes showed down-regulation as compared to lean controls. Genes with significantly altered expression in the heart due to metabolic syndrome includes functional clusters of metabolism (e.g. 3-hydroxy-3-methylglutaryl-Coenzyme A synthase 2; argininosuccinate synthetase; 2-amino-3-ketobutyrate-coenzyme A ligase), structural proteins (e.g. myosin IXA; aggrecan1), signal transduction (e.g. activating transcription factor 3; phospholipase A2; insulin responsive sequence DNA binding protein-1) stress response (e.g. heat shock 70kD protein 1A; heat shock protein 60; glutathione S-transferase Yc2 subunit), ion channels and receptors (e.g. ATPase, (Na+)/K+ transporting, beta 4 polypeptide; ATPase, H+/K+ transporting, nongastric, alpha polypeptide). Moreover some other genes with no definite functional clusters were also changed such as e.g. S100 calcium binding protein A3; ubiquitin carboxy-terminal hydrolase L1; interleukin 18. Gene ontology analysis revealed several significantly enriched functional inter-relationships between genes influenced by metabolic syndrome. CONCLUSIONS Metabolic syndrome significantly alters cardiac gene expression profile which may be involved in development of cardiac pathologies in the presence of metabolic syndrome.
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Affiliation(s)
- Márta Sárközy
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Ágnes Zvara
- Department of Functional Genomics, Biological Research Center, Szeged, Hungary
| | - Nóra Gyémánt
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Veronika Fekete
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Gabriella F Kocsis
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Judit Pipis
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Gergő Szűcs
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Csaba Csonka
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - László G Puskás
- Department of Functional Genomics, Biological Research Center, Szeged, Hungary
| | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Tamás Csont
- Cardiovascular Research Group, Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
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De Bruyne S, De Malsche W, Fekete V, Thienpont H, Ottevaere H, Gardeniers H, Desmet G. Exploring the speed limits of liquid chromatography using shear-driven flows through 45 and 85 nm deep nano-channels. Analyst 2013; 138:6127-33. [DOI: 10.1039/c3an01325a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fekete V, Deconinck E, Bolle F, Van Loco J. Modelling aluminium leaching into food from different foodware materials with multi-level factorial design of experiments. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:1322-33. [DOI: 10.1080/19440049.2012.688068] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Perez-Pomares JM, Ruiz-Villalba A, Ziogas A, Segovia JC, Ehrbar M, Munoz-Chapuli R, De La Rosa A, Dominguez JN, Hove-Madsen L, Sankova B, Sedmera D, Franco D, Aranega Jimenez A, Babaeva G, Chizh N, Galchenko S, Sandomirsky B, Schwarzl M, Seiler S, Steendijk P, Huber S, Maechler H, Truschnig-Wilders M, Pieske B, Post H, Simrick S, Kreutzer R, Rao C, Terracciano CM, Kirchhof P, Fabritz L, Brand T, Theveniau-Ruissy M, Parisot P, Francou A, Saint-Michel E, Mesbah K, Kelly RG, Wu HT, Sie SS, Chen CY, Kuan TC, Lin CS, Ismailoglu Z, Guven M, Yakici A, Ata Y, Ozcan S, Yildirim E, Ongen Z, Miroshnikova V, Demina E, Rodygina T, Kurjanov P, Denisenko A, Schwarzman A, Rubanenko A, Shchukin Y, Germanov A, Goldbergova M, Parenica J, Lipkova J, Pavek N, Kala P, Poloczek M, Vasku A, Parenicova I, Spinar J, Gambacciani C, Chiavacci E, Evangelista M, Vesentini N, Kusmic C, Pitto L, Chernova A, Nikulina SUY, Arvanitis DA, Mourouzis I, Pantos C, Kranias EG, Cokkinos DV, Sanoudou D, Vladimirskaya TE, Shved IA, Kryvorot SG, Schirmer IM, Appukuttan A, Pott L, Jaquet K, Ladilov Y, Archer CR, Bootman MD, Roderick HL, Fusco A, Sorriento D, Santulli G, Trimarco B, Iaccarino G, Hagenmueller M, Riffel J, Gatzoulis MA, Stoupel EG, Garcia R, Merino D, Montalvo C, Hurle MA, Nistal JF, Villar AV, Perez-Moreno A, Gilabert R, Bernhold E, Ros E, Amat-Roldan I, Katus HA, Hardt SE, Maqsood A, Zi M, Prehar S, Neyses L, Ray S, Oceandy D, Khatami N, Wadowski P, Wagh V, Hescheler J, Sachinidis A, Mohl W, Chaudhry B, Burns D, Henderson DJ, Bax NAM, Van Marion MH, Shah B, Goumans MJ, Bouten CVC, Van Der Schaft DWJ, Bax NAM, Van Oorschot AAM, Maas S, Braun J, Van Tuyn J, De Vries AAF, Gittenberger-De Groot AC, Goumans MJ, Bageghni S, Drinkhill MJ, Batten TFC, Ainscough JFX, Onate B, Vilahur G, Ferrer-Lorente R, Ybarra J, Diez-Caballero A, Ballesta-Lopez C, Moscatiello F, Herrero J, Badimon L, Martin-Rendon E, Clifford DM, Fisher SA, Brusnkill SJ, Doree C, Mathur A, Clarke M, Watt SM, Hernandez-Vera R, Badimon L, Kavanagh D, Yemm AI, Frampton J, Kalia N, Terajima Y, Shimizu T, Tsuruyama S, Ishii H, Sekine H, Hagiwara N, Okano T, Vrijsen KR, Chamuleau SAJ, Sluijter JPG, Doevendans PFM, Madonna R, Delli Pizzi S, Di Donato L, Mariotti A, Di Carlo L, D'ugo E, Teberino MA, Merla A, T A, De Caterina R, Kolker L, Ali NN, Maclellan K, Moore M, Wheeler J, Harding SE, Fleck RA, Rowlinson JM, Kraenkel N, Ascione R, Madeddu P, O'sullivan JF, Leblond AL, Kelly G, Kumar AHS, Metharom P, Buneker CK, Alizadeh-Vikali N, Hynes BG, O'connor R, Caplice NM, Noseda M, De Smith AJ, Leja T, Rao PH, Al-Beidh F, Abreu Pavia MS, Blakemore AI, Schneider MD, Stathopoulou K, Cuello F, Ehler E, Haworth RS, Avkiran M, Morawietz H, Eickholt C, Langbein H, Brux M, Goettsch C, Goettsch W, Arsov A, Brunssen C, Mazilu L, Parepa IR, Suceveanu AI, Suceveanu AP, De Man FS, Guignabert C, Tu L, Handoko ML, Schalij I, Fadel E, Postmus PE, Vonk-Noordegraaf A, Humbert M, Eddahibi S, Sorriento D, Santulli G, Del Giudice C, Anastasio A, Trimarco B, Iaccarino G, Fazal L, Azibani F, Bihry N, Merval R, Polidano E, Samuel JL, Delcayre C, Zhang Y, Mi YM, Ren LL, Cheng YP, Guo R, Liu Y, Jiang YN, Mourouzis I, Pantos C, Kokkinos AD, Cokkinos DV, Tretjakovs P, Jurka A, Bormane I, Mikelsone I, Reihmane D, Elksne K, Krievina G, Verbovenko J, Bahs G, Lopez-Andres N, Rousseau A, Calvier L, Akhtar R, Labat C, Cruickshank K, Diez J, Zannad F, Lacolley P, Rossignol P, Hamesch K, Subramanian P, Li X, Thiemann A, Heyll K, Dembowsky K, Chevalier E, Weber C, Schober A, Yang L, Kim G, Gardner B, Earley J, Hofmann-Bowman M, Cheng CF, Lian WS, Lin H, Jinjolia NJ, Abuladze GA, Tvalchrelidze SHT, Khamnagadaev I, Shkolnikova M, Kokov L, Miklashevich I, Drozdov I, Ilyich I, Bingen BO, Askar SFA, Ypey DL, Van Der Laarse A, Schalij MJ, Pijnappels DA, Roney CH, Ng FS, Chowdhury RA, Chang ETY, Patel PM, Lyon AR, Siggers JH, Peters NS, Obergrussberger A, Stoelzle S, Bruggemann A, Haarmann C, George M, Fertig N, Moreira D, Souza A, Valente P, Kornej 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Zurmanova J, Kasparova D, Kolar F, Neckar J, Novak F, Novakova O, Pollard S, Babba M, Hussain A, James R, Maddock H, Alshehri AS, Baxter GF, Dietel B, Altendorf R, Daniel WG, Kollmar R, Garlichs CD, Sirohi R, Roberts N, Lawrence D, Sheikh A, Kolvekar S, Yap J, Arend M, Walkinshaw G, Hausenloy DJ, Yellon DM, Posa A, Szabo R, Szalai Z, Szablics P, Berko MA, Orban K, Murlasits ZS, Balogh L, Varga C, Ku HC, Su MJ, Chreih RM, Ginghina C, Deleanu D, Ferreira ALBJ, Belal A, Ali MA, Fan X, Holt A, Campbell R, Schulz R, Bonanad C, Bodi V, Sanchis J, Morales JM, Marrachelli V, Nunez J, Forteza MJ, Chaustre F, Gomez C, Chorro FJ, Csont T, Fekete V, Murlasits Z, Aypar E, Bencsik P, Sarkozy M, Varga ZV, Ferdinandy P, Duerr GD, Zoerlein M, Dewald D, Mesenholl B, Schneider P, Ghanem A, Rittling S, Welz A, Dewald O, Duerr GD, Dewald D, Becker E, Peigney C, Ghanem A, Welz A, Dewald O, Bouleti C, Galaup A, Monnot C, Ghaleh B, Germain S, Timmermans A, Ginion A, De Meester C, Sakamoto K, Vanoverschelde 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Abonnenc M, Da Costa Martins P, Srivastava S, Didangelos A, Yin X, Gautel M, De Windt L, Mayr M, Comelli L, Rocchiccioli S, Lande C, Ucciferri N, Trivella MG, Citti L, Cecchettini A, Ikonen L, Vuorenpaa H, Kujala K, Sarkanen JR, Heinonen T, Ylikomi T, Aalto-Setala K, Capros H, Sprincean N, Usurelu N, Egorov V, Stratu N, Matchkov V, Bouzinova E, Moeller-Nielsen N, Wiborg O, Aalkjaer C, Gutierrez PS, Aparecida-Silva R, Borges LF, Moreira LFP, Dias RR, Kalil J, Stolf NAG, Zhou W, Suntharalingam K, Brand N, Vilar Compte R, Ying L, Bicknell K, Dannoura A, Dash P, Brooks G, Tsimafeyeu I, Tishova Y, Wynn N, Oyeyipo IP, Olatunji LA, Maegdefessel L, Azuma J, Toh R, Raaz U, Merk DR, Deng A, Spin JM, Tsao PS, Lande C, Cecchettini A, Tedeschi L, Taranta M, Naldi I, Citti L, Trivella MG, Grimaldi S, Cinti C, Bousquenaud M, Maskali F, Poussier S, Marie PY, Boutley H, Karcher G, Wagner DR, Devaux Y, Torre I, Psilodimitrakopoulos S, Iruretagoiena I, Gonzalez-Tendero A, Artigas D, Loza-Alvarez P, Gratacos E, Amat-Roldan I, Murray L, Carberry DM, Dunton P, Miles MJ, Suleiman MS, Kanesalingam K, Taylor R, Mc Collum CN, Parniczky A, Solymar M, Porpaczy A, Miseta A, Lenkey ZS, Szabados S, Cziraki A, Garai J, Koller A, Myloslavska I, Menazza SM, Canton MC, Di Lisa FDL, Schulz RS, Oliveira SHV, Morais CAS, Miranda MR, Oliveira TT, Lamego MRA, Lima LM, Goncharova NS, Naymushin AV, Kazimli AV, Moiseeva OM, Lima LM, Carvalho MG, Sabino AP, Mota APL, Sousa MO, Niessner A, Richter B, Hohensinner PJ, Rychli K, Zorn G, Berger R, Moertl D, Pacher R, Wojta J, Huelsmann M, Kukharchik G, Nesterova N, Pavlova A, Gaykovaya L, Krapivka N, Konstantinova I, Sichinava L, Prapa S, Mccarthy KP, Kilner PJ, Xu XY, Johnson MR, Ho SY. Poster session 2. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr334] [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: 11/12/2022] Open
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Demont M, Boutakhrit K, Fekete V, Bolle F, Van Loco J. Migration of 18 trace elements from ceramic food contact material: Influence of pigment, pH, nature of acid and temperature. Food Chem Toxicol 2012; 50:734-43. [DOI: 10.1016/j.fct.2011.12.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 12/13/2011] [Accepted: 12/26/2011] [Indexed: 10/14/2022]
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Aamodt K, Abelev B, Abrahantes Quintana A, Adamová D, Adare AM, Aggarwal MM, Aglieri Rinella G, Agocs AG, Agostinelli A, Aguilar Salazar S, Ahammed Z, Ahmad N, Ahmad Masoodi A, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, Alfaro Molina R, Alici A, Alkin A, Almaráz Aviña E, Alt T, Altini V, Altsybeev I, Andrei C, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arbor N, Arcelli S, Arend A, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Arslandok M, Asryan A, Augustinus A, Averbeck R, Awes TC, Äystö J, Azmi MD, Bach M, Badalà A, Baek YW, Bailhache R, Bala R, Baldini Ferroli R, Baldisseri A, Baldit A, Bán J, Baral RC, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Bathen B, Batigne G, Batyunya B, Baumann C, Bearden IG, Beck H, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Beole S, Berceanu I, Bercuci A, Berdermann E, Berdnikov Y, Bergmann C, Betev L, Bhasin A, Bhati AK, Bianchi L, Bianchi N, 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Rakotozafindrabe A, Ramello L, Ramírez Reyes A, Rammler M, Raniwala R, Raniwala S, Räsänen SS, Rathee D, Read KF, Real JS, Redlich K, Reichelt P, Reicher M, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Ricaud H, Riccati L, Ricci RA, Richter M, Riedler P, Riegler W, Riggi F, Rodríguez Cahuantzi M, Rohr D, Röhrich D, Romita R, Ronchetti F, Rosinský P, Rosnet P, Rossegger S, Rossi A, Roukoutakis F, Rousseau S, Roy P, Roy C, Rubio Montero AJ, Rui R, Ryabinkin E, Rybicki A, Sadovsky S, Šafařík K, Sahoo R, Sahu PK, Saiz P, Sakaguchi H, Sakai S, Sakata D, Salgado CA, Sambyal S, Samsonov V, Sanchez Castro X, Šándor L, Sandoval A, Sano S, Sano M, Santo R, Santoro R, Sarkamo J, Saturnini P, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schreiner S, Schuchmann S, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Scott PA, Segato G, Selyuzhenkov I, Senyukov S, Serci S, Serradilla E, Sevcenco A, Sgura I, Shabratova G, Shahoyan R, Sharma S, Sharma N, Shigaki K, Shimomura M, Shtejer K, Sibiriak Y, Siciliano M, Sicking E, Siemiarczuk T, Silvermyr D, Simonetti G, Singaraju R, Singh R, Singha S, Sinha T, Sinha BC, Sitar B, Sitta M, Skaali TB, Skjerdal K, Smakal R, Smirnov N, Snellings R, Søgaard C, Soltz R, Son H, Song M, Song J, Soos C, Soramel F, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Steinbeck T, Steinpreis M, Stenlund E, Steyn G, Stocco D, Stokkevag CH, Stolpovskiy M, Strmen P, Suaide AAP, Subieta Vásquez MA, Sugitate T, Suire C, Sukhorukov M, Sumbera M, Susa T, Symons TJM, Szanto de Toledo A, Szarka I, Szostak A, Tagridis C, Takahashi J, Tapia Takaki JD, Tauro A, Tejeda Muñoz G, Telesca A, Terrevoli C, Thäder J, Thomas D, Thomas JH, Tieulent R, Timmins AR, Tlusty D, Toia A, Torii H, Toscano L, Traczyk T, Truesdale D, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Turvey AJ, Tveter TS, Ulery J, Ullaland K, Uras A, Urbán J, Urciuoli GM, Usai GL, Vajzer M, Vala M, Valencia Palomo L, Vallero S, van der Kolk N, Vande Vyvre P, van Leeuwen M, Vannucci L, Vargas A, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Venaruzzo M, Vercellin E, Vergara S, Vernekohl DC, Vernet R, Verweij M, Vickovic L, Viesti G, Vikhlyantsev O, Vilakazi Z, Villalobos Baillie O, Vinogradov Y, Vinogradov A, Vinogradov L, Virgili T, Viyogi YP, Vodopyanov A, Voloshin K, Voloshin S, Volpe G, von Haller B, Vranic D, Øvrebekk G, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner V, Wan R, Wang Y, Wang Y, Wang M, Wang D, Watanabe K, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk A, Wilk G, Williams MCS, Windelband B, Xaplanteris Karampatsos L, Yang H, Yasnopolskiy S, Yi J, Yin Z, Yokoyama H, Yoo IK, Yoon J, Yuan X, Yushmanov I, Zabrodin E, Zach C, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zelnicek P, Zenin A, Zgura I, Zhalov M, Zhang X, Zhou D, Zhou F, Zhou Y, Zhu X, Zichichi A, Zinovjev G, Zoccarato Y, Zynovyev M. Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at sqrt(s(NN)) = 2.76 TeV. Phys Rev Lett 2011; 107:032301. [PMID: 21838350 DOI: 10.1103/physrevlett.107.032301] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Indexed: 05/31/2023]
Abstract
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at sqrt(s(NN)) = 2.76 TeV measured with the ALICE detector at the CERN Large Hadron Collider. We show that the triangular flow can be described in terms of the initial spatial anisotropy and its fluctuations, which provides strong constraints on its origin. In the most central events, where the elliptic flow v2 and v3 have similar magnitude, a double peaked structure in the two-particle azimuthal correlations is observed, which is often interpreted as a Mach cone response to fast partons. We show that this structure can be naturally explained from the measured anisotropic flow Fourier coefficients.
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Affiliation(s)
- K Aamodt
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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Aamodt K, Abrahantes Quintana A, Adamová D, Adare AM, Aggarwal MM, Aglieri Rinella G, Agocs AG, Aguilar Salazar S, Ahammed Z, Ahmad N, Ahmad Masoodi A, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, Alfaro Molina R, Alici A, Alkin A, Almaráz Aviña E, Alt T, Altini V, Altinpinar S, Altsybeev I, Andrei C, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arbor N, Arcelli S, Arend A, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Asryan A, Augustinus A, Averbeck R, Awes TC, Aystö J, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldini Ferroli R, Baldisseri A, Baldit A, Bán J, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Bathen B, Batigne G, Batyunya B, Baumann C, Bearden IG, Beck H, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Beole S, Berceanu I, Bercuci A, Berdermann E, Berdnikov Y, Betev L, Bhasin A, Bhati AK, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biolcati E, Blanc A, Blanco F, Blanco F, Blau D, Blume C, Boccioli M, Bock N, Bogdanov A, Bøggild H, Bogolyubsky M, Boldizsár L, Bombara M, Bombonati C, Book J, Borel H, Bortolin C, Bose S, Bossú F, Botje M, Böttger S, Boyer B, Braun-Munzinger P, Bravina L, Bregant M, Breitner T, Broz M, Brun R, Bruna E, Bruno GE, Budnikov D, Buesching H, Busch O, Buthelezi Z, Caffarri D, Cai X, Caines H, Calvo Villar E, Camerini P, Canoa Roman V, Cara Romeo G, Carena F, Carena W, Carminati F, Casanova Díaz A, Caselle M, Castillo Castellanos J, Catanescu V, Cavicchioli C, Cerello P, Chang B, Chapeland S, Charvet JL, Chattopadhyay S, Chattopadhyay S, Cherney M, Cheshkov C, Cheynis B, Chiavassa E, Chibante Barroso V, Chinellato DD, Chochula P, Chojnacki M, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Coccetti F, Coffin JP, Coli S, Conesa Balbastre G, Conesa Del Valle Z, Constantin P, Contin G, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Cotallo ME, Crescio E, Crochet P, Cuautle E, Cunqueiro L, Erasmo GD, Dainese A, Dalsgaard HH, Danu A, Das D, Das I, Dash A, Dash S, De S, De Azevedo Moregula A, de Barros GOV, De Caro A, de Cataldo G, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Remigis R, de Rooij R, Delagrange H, Delgado Mercado Y, Dellacasa G, Deloff A, Demanov V, Dénes E, Deppman A, Di Bari D, Di Giglio C, Di Liberto S, Di Mauro A, Di Nezza P, Dietel T, Divià R, Djuvsland Ø, Dobrin A, Dobrowolski T, Domínguez I, Dönigus B, Dordic O, Driga O, Dubey AK, Ducroux L, Dupieux P, Dutta Majumdar AK, Dutta Majumdar MR, Elia D, Emschermann D, Engel H, Erdal HA, Espagnon B, Estienne M, Esumi S, Evans D, Evrard S, Eyyubova G, Fabjan CW, Fabris D, Faivre J, Falchieri D, Fantoni A, Fasel M, Fearick R, Fedunov A, Fehlker D, Fekete V, Felea D, Feofilov G, Fernández Téllez A, Ferretti A, Ferretti R, Figueredo MAS, Filchagin S, Fini R, Finogeev D, Fionda FM, Fiore EM, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Fragkiadakis M, Frankenfeld U, Fuchs U, Furano F, Furget C, Fusco Girard M, Gaardhøje JJ, Gadrat S, Gagliardi M, Gago A, Gallio M, Ganoti P, Garabatos C, Gemme R, Gerhard J, Germain M, Geuna C, Gheata A, Gheata M, Ghidini B, Ghosh P, Girard MR, Giraudo G, Giubellino P, Gladysz-Dziadus E, Glässel P, Gomez R, González-Trueba LH, González-Zamora P, González Santos H, Gorbunov S, Gotovac S, Grabski V, Grajcarek R, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gros P, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerra Gutierrez C, Guerzoni B, Gulbrandsen K, Gulkanyan H, Gunji T, Gupta A, Gupta R, Gutbrod H, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Harris JW, Hartig M, Hasch D, Hasegan D, Hatzifotiadou D, Hayrapetyan A, Heide M, Heinz M, Helstrup H, Herghelegiu A, Hernández C, Herrera Corral G, Herrmann N, Hetland KF, Hicks B, Hille PT, Hippolyte B, Horaguchi T, Hori Y, Hristov P, Hřivnáčová I, Huang M, Huber S, Humanic TJ, Hwang DS, Ichou R, Ilkaev R, Ilkiv I, Inaba M, Incani E, Innocenti GM, Innocenti PG, Ippolitov M, Irfan M, Ivan C, Ivanov A, Ivanov M, Ivanov V, Jachołkowski A, Jacobs PM, Jancurová L, Jangal S, Janik R, Jayarathna SP, Jena S, Jirden L, Jones GT, Jones PG, Jovanović P, Jung H, Jung W, Jusko A, Kalcher S, Kaliňák P, Kalisky M, Kalliokoski T, Kalweit A, Kamermans R, Kanaki K, Kang E, Kang JH, Kaplin V, Karavichev O, Karavicheva T, Karpechev E, Kazantsev A, Kebschull U, Keidel R, Khan MM, Khanzadeev A, Kharlov Y, Kileng B, Kim DJ, Kim DS, Kim DW, Kim HN, Kim JH, Kim JS, Kim M, Kim M, Kim S, Kim SH, Kirsch S, Kisel I, Kiselev S, Kisiel A, Klay JL, Klein J, Klein-Bösing C, Kliemant M, Klovning A, Kluge A, Knichel ML, Koch K, Köhler MK, Kolevatov R, Kolojvari A, Kondratiev V, Kondratyeva N, Konevskih A, Kornaś E, Kottachchi Kankanamge Don C, Kour R, Kowalski M, Kox S, Koyithatta Meethaleveedu G, Kozlov K, Kral J, Králik I, Kramer F, Kraus I, Krawutschke T, Kretz M, Krivda M, Krumbhorn D, Krus M, Kryshen E, Krzewicki M, Kucheriaev Y, Kuhn C, Kuijer PG, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kushpil V, Kweon MJ, Kwon Y, La Rocca P, Ladrón de Guevara P, Lafage V, Lara C, Larsen DT, Lazzeroni C, Le Bornec Y, Lea R, Lee KS, Lee SC, Lefèvre F, Lehnert J, Leistam L, Lenhardt M, Lenti V, León Monzón I, León Vargas H, Lévai P, Li X, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Liu L, Loggins VR, Loginov V, Lohn S, Lohner D, Loizides C, Lopez X, López Noriega M, López Torres E, Løvhøiden G, Lu XG, Luettig P, Lunardon M, Luparello G, Luquin L, Luzzi C, Ma K, Ma R, Madagodahettige-Don DM, Maevskaya A, Mager M, Mahapatra DP, Maire A, Malaev M, Maldonado Cervantes I, Mal'Kevich D, Malzacher P, Mamonov A, Manceau L, Mangotra L, Manko V, Manso F, Manzari V, Mao Y, Mareš J, Margagliotti GV, Margotti A, Marín A, Martashvili I, Martinengo P, Martínez MI, Martínez Davalos A, Martínez García G, Martynov Y, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastromarco M, Mastroserio A, Matthews ZL, Matyja A, Mayani D, Mazza G, Mazzoni MA, Meddi F, Menchaca-Rocha A, Mendez Lorenzo P, Mercado Pérez J, Mereu P, Miake Y, Midori J, Milano L, Milosevic J, Mischke A, Miśkowiec D, Mitu C, Mlynarz J, Mohanty B, Molnar L, Montaño Zetina L, Monteno M, Montes E, Morando M, Moreira De Godoy DA, Moretto S, Morsch A, Muccifora V, Mudnic E, Müller H, Muhuri S, Munhoz MG, Munoz J, Musa L, Musso A, Nandi BK, Nania R, Nappi E, Nattrass C, Navach F, Navin S, Nayak TK, Nazarenko S, Nazarov G, Nedosekin A, Nendaz F, Newby J, Nicassio M, Nielsen BS, Nikolaev S, Nikolic V, Nikulin S, Nikulin V, Nilsen BS, Nilsson MS, Noferini F, Nooren G, Novitzky N, Nyanin A, Nyatha A, Nygaard C, Nystrand J, Obayashi H, Ochirov A, Oeschler H, Oh SK, Oleniacz J, Oppedisano C, Ortiz Velasquez A, Ortona G, Oskarsson A, Ostrowski P, Otterlund I, Otwinowski J, Øvrebekk G, Oyama K, Ozawa K, Pachmayer Y, Pachr M, Padilla F, Pagano P, Paić G, Painke F, Pajares C, Pal S, Pal SK, Palaha A, Palmeri A, Pappalardo GS, Park WJ, Paticchio V, Pavlinov A, Pawlak T, Peitzmann T, Peresunko D, Pérez Lara CE, Perini D, Perrino D, Peryt W, Pesci A, Peskov V, Pestov Y, Peters AJ, Petráček V, Petris M, Petrov P, Petrovici M, Petta C, Piano S, Piccotti A, Pikna M, Pillot P, Pinazza O, Pinsky L, Pitz N, Piuz F, Piyarathna DB, Platt R, Płoskoń M, Pluta J, Pocheptsov T, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polák K, Polichtchouk B, Pop A, Pospíšil V, Potukuchi B, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puddu G, Pulvirenti A, Punin V, Putiš M, Putschke J, Quercigh E, Qvigstad H, Rachevski A, Rademakers A, Rademakers O, Radomski S, Räihä TS, Rak J, Rakotozafindrabe A, Ramello L, Ramírez Reyes A, Rammler M, Raniwala R, Raniwala S, Räsänen SS, Read KF, Real JS, Redlich K, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Ricaud H, Riccati L, Ricci RA, Richter M, Riedler P, Riegler W, Riggi F, Rivetti A, Rodríguez Cahuantzi M, Rohr D, Röhrich D, Romita R, Ronchetti F, Rosinský P, Rosnet P, Rossegger S, Rossi A, Roukoutakis F, Rousseau S, Roy C, Roy P, Rubio Montero AJ, Rui R, Rusanov I, Ryabinkin E, Rybicki A, Sadovsky S, Safařík K, Sahoo R, Sahu PK, Saiz P, Sakai S, Sakata D, Salgado CA, Samanta T, Sambyal S, Samsonov V, Sándor L, Sandoval A, Sano M, Sano S, Santo R, Santoro R, Sarkamo J, Saturnini P, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schreiner S, Schuchmann S, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott PA, Scott R, Segato G, Senyukov S, Seo J, Serci S, Serradilla E, Sevcenco A, Shabratova G, Shahoyan R, Sharma N, Sharma S, Shigaki K, Shimomura M, Shtejer K, Sibiriak Y, Siciliano M, Sicking E, Siemiarczuk T, Silenzi A, Silvermyr D, Simonetti G, Singaraju R, Singh R, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Skjerdal K, Smakal R, Smirnov N, Snellings R, Søgaard C, Soloviev A, Soltz R, Son H, Song M, Soos C, Soramel F, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Stefanini G, Steinbeck T, Stenlund E, Steyn G, Stocco D, Stock R, Stolpovskiy M, Strmen P, Suaide AAP, Subieta Vásquez MA, Sugitate T, Suire C, Sumbera M, Susa T, Swoboda D, Symons TJM, Szanto de Toledo A, Szarka I, Szostak A, Tagridis C, Takahashi J, Tapia Takaki JD, Tauro A, Tavlet M, Tejeda Muñoz G, Telesca A, Terrevoli C, Thäder J, Thomas D, Thomas JH, Tieulent R, Timmins AR, Tlusty D, Toia A, Torii H, Toscano L, Tosello F, Traczyk T, Truesdale D, Trzaska WH, Tumkin A, Turrisi R, Turvey AJ, Tveter TS, Ulery J, Ullaland K, Uras A, Urbán J, Urciuoli GM, Usai GL, Vacchi A, Vala M, Valencia Palomo L, Vallero S, van der Kolk N, van Leeuwen M, Vande Vyvre P, Vannucci L, Vargas A, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Venaruzzo M, Vercellin E, Vergara S, Vernet R, Verweij M, Vickovic L, Viesti G, Vikhlyantsev O, Vilakazi Z, Villalobos Baillie O, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Viyogi YP, Vodopyanov A, Voloshin K, Voloshin S, Volpe G, von Haller B, Vranic D, Vrláková J, Vulpescu B, Wagner B, Wagner V, Wan R, Wang D, Wang Y, Wang Y, Watanabe K, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk A, Wilk G, Williams MCS, Windelband B, Yang H, Yasnopolskiy S, Yi J, Yin Z, Yokoyama H, Yoo IK, Yuan X, Yushmanov I, Zabrodin E, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zbroszczyk H, Zelnicek P, Zenin A, Zgura I, Zhalov M, Zhang X, Zhou D, Zhu X, Zichichi A, Zinovjev G, Zoccarato Y, Zynovyev M. Centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at sqrt[s(NN)] = 2.76 TeV. Phys Rev Lett 2011; 106:032301. [PMID: 21405267 DOI: 10.1103/physrevlett.106.032301] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Indexed: 05/30/2023]
Abstract
The centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at sqrt[s_{NN}]=2.76 TeV is presented. The charged-particle density normalized per participating nucleon pair increases by about a factor of 2 from peripheral (70%-80%) to central (0%-5%) collisions. The centrality dependence is found to be similar to that observed at lower collision energies. The data are compared with models based on different mechanisms for particle production in nuclear collisions.
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Affiliation(s)
- K Aamodt
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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Aamodt K, Abelev B, Quintana AA, Adamová D, Adare AM, Aggarwal MM, Rinella GA, Agocs AG, Salazar SA, Ahammed Z, Masoodi AA, Ahmad N, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, Molina RA, Alici A, Alkin A, Aviña EA, Alt T, Altini V, Altinpinar S, Altsybeev I, Andrei C, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arbor N, Arcelli S, Arend A, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Asryan A, Augustinus A, Averbeck R, Awes TC, Aystö J, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Ferroli RB, Baldisseri A, Baldit A, Pedrosa FBDS, Bán J, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Bathen B, Batigne G, Batyunya B, Baumann C, Bearden IG, Beck H, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Beole S, Berceanu I, Bercuci A, Berdermann E, Berdnikov Y, Bergmann C, Betev L, Bhasin A, Bhati AK, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic 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EM, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Fragkiadakis M, Frankenfeld U, Fuchs U, Furano F, Furget C, Girard MF, Gaardhøje JJ, Gadrat S, Gagliardi M, Gago A, Gallio M, Gangadharan DR, Ganoti P, Ganti MS, Garabatos C, Garcia-Solis E, Garishvili I, Gemme R, Gerhard J, Germain M, Geuna C, Gheata A, Gheata M, Ghidini B, Ghosh P, Gianotti P, Girard MR, Giraudo G, Giubellino P, Gladysz-Dziadus E, Glässel P, Gomez R, Ferreiro EG, Santos HG, González-Trueba LH, González-Zamora P, Gorbunov S, Gotovac S, Grabski V, Grajcarek R, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gros P, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Gutierrez CG, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Gutbrod H, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Harris JW, Hartig M, Hasch D, Hasegan D, Hatzifotiadou D, Hayrapetyan A, Heide M, Heinz M, Helstrup H, Herghelegiu A, Hernández C, Corral GH, Herrmann N, 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Kral J, Králik I, Kramer F, Kraus I, Krawutschke T, Kretz M, Krivda M, Krizek F, Krumbhorn D, Krus M, Kryshen E, Krzewicki M, Kucheriaev Y, Kuhn C, Kuijer PG, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kushpil V, Kweon MJ, Kwon Y, La Rocca P, Ladrón de Guevara P, Lafage V, Lara C, Lardeux A, Larsen DT, Lazzeroni C, Le Bornec Y, Lea R, Lee KS, Lee SC, Lefèvre F, Lehnert J, Leistam L, Lenhardt M, Lenti V, Monzón IL, Vargas HL, Lévai P, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Liu L, Loenne PI, Loggins VR, Loginov V, Lohn S, Loizides C, Loo KK, Lopez X, Noriega ML, Torres EL, Løvhøiden G, Lu XG, Luettig P, Lunardon M, Luparello G, Luquin L, Luzzi C, Ma K, Ma R, Madagodahettige-Don DM, Maevskaya A, Mager M, Mahapatra DP, Maire A, Mal'Kevich D, Malaev M, Cervantes IM, Malinina L, Malzacher P, Mamonov A, Manceau L, Mangotra L, Manko V, Manso F, Manzari V, Mao Y, Mareš J, Margagliotti GV, Margotti A, Marín A, Markert C, Martashvili I, Martinengo 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Revol JP, Reygers K, Ricaud H, Riccati L, Ricci RA, Richter M, Riedler P, Riegler W, Riggi F, Cahuantzi MR, Rohr D, Röhrich D, Romita R, Ronchetti F, Rosinský P, Rosnet P, Rossegger S, Rossi A, Roukoutakis F, Rousseau S, Roy C, Roy P, Montero AJR, Rui R, Rivetti A, Rusanov I, Ryabinkin E, Rybicki A, Sadovsky S, Safařík K, Sahoo R, Sahu PK, Saini J, Saiz P, Sakai S, Sakata D, Salgado CA, Samanta T, Sambyal S, Samsonov V, Castro XS, Sándor L, Sandoval A, Sano M, Sano S, Santo R, Santoro R, Sarkamo J, Saturnini P, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schreiner S, Schuchmann S, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott PA, Scott R, Segato G, Selyuzhenkov I, Senyukov S, Seo J, Serci S, Serradilla E, Sevcenco A, Sgura I, Shabratova G, Shahoyan R, Sharma N, Sharma S, Shigaki K, Shimomura M, Shtejer K, Sibiriak Y, Siciliano M, Sicking E, Siemiarczuk T, Silenzi A, Silvermyr D, Simonetti G, Singaraju R, Singh R, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Skjerdal K, Smakal R, Smirnov N, Snellings R, Søgaard C, Soloviev A, Soltz R, Son H, Song J, Song M, Soos C, Soramel F, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Stefanini G, Steinbeck T, Steinpreis M, Stenlund E, Steyn G, Stocco D, Stock R, Stokkevag CH, Stolpovskiy M, Strmen P, Suaide AAP, Vásquez MAS, Sugitate T, Suire C, Sukhorukov M, Sumbera M, Susa T, Swoboda D, Symons TJM, de Toledo AS, Szarka I, Szostak A, Tagridis C, Takahashi J, Takaki JDT, Tauro A, Tavlet M, Muñoz GT, Telesca A, Terrevoli C, Thäder J, Thomas D, Thomas JH, Tieulent R, Timmins AR, Tlusty D, Toia A, Torii H, Toscano L, Tosello F, Traczyk T, Truesdale D, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Turvey AJ, Tveter TS, Ulery J, Ullaland K, Uras A, Urbán J, Urciuoli GM, Usai GL, Vacchi A, Vajzer M, Vala M, Palomo LV, Vallero S, van der Kolk N, van Leeuwen M, Vande Vyvre P, Vannucci L, Vargas A, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Venaruzzo M, Vercellin E, Vergara S, Vernekohl DC, Vernet R, Verweij M, Vickovic L, Viesti G, Vikhlyantsev O, Vilakazi Z, Baillie OV, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Viyogi YP, Vodopyanov A, Voloshin K, Voloshin S, Volpe G, von Haller B, Vranic D, Øvrebekk G, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner V, Wan R, Wang D, Wang Y, Wang Y, Watanabe K, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk A, Wilk G, Williams MCS, Windelband B, Karampatsos LX, Yang H, Yang S, Yasnopolskiy S, Yi J, Yin Z, Yokoyama H, Yoo IK, Yu W, Yuan X, Yushmanov I, Zabrodin E, Zach C, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zelnicek P, Zenin A, Zgura I, Zhalov M, Zhang X, Zhou D, Zichichi A, Zinovjev G, Zoccarato Y, Zynovyev M. Elliptic flow of charged particles in Pb-Pb collisions at sqrt[S(NN)] = 2.76 TeV. Phys Rev Lett 2010; 105:252302. [PMID: 21231580 DOI: 10.1103/physrevlett.105.252302] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Indexed: 05/30/2023]
Abstract
We report the first measurement of charged particle elliptic flow in Pb-Pb collisions at sqrt[S(NN)] =2.76 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurement is performed in the central pseudorapidity region (|η|<0.8) and transverse momentum range 0.2<p t<5.0 GeV/c. The elliptic flow signal v₂, measured using the 4-particle correlation method, averaged over transverse momentum and pseudorapidity is 0.087 ± 0.002(stat) ± 0.003(syst) in the 40%-50% centrality class. The differential elliptic flow v₂ p t reaches a maximum of 0.2 near p t =3 GeV/c. Compared to RHIC Au-Au collisions at sqrt[S(NN)] 200 GeV, the elliptic flow increases by about 30%. Some hydrodynamic model predictions which include viscous corrections are in agreement with the observed increase.
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Affiliation(s)
- K Aamodt
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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Aamodt K, Abelev B, Quintana AA, Adamová D, Adare AM, Aggarwal MM, Rinella GA, Agocs AG, Salazar SA, Ahammed Z, Masoodi AA, Ahmad N, Ahn SU, Akindinov A, Aleksandrov D, Alessandro B, Molina RA, Alici A, Alkin A, Aviña EA, Alt T, Altini V, Altinpinar S, Altsybeev I, Andrei C, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arbor N, Arcelli S, Arend A, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Asryan A, Augustinus A, Averbeck R, Awes TC, Aystö J, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Ferroli RB, Baldisseri A, Baldit A, Pedrosa FBDS, Bán J, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Bathen B, Batigne G, Batyunya B, Baumann C, Bearden IG, Beck H, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Beole S, Berceanu I, Bercuci A, Berdermann E, Berdnikov Y, Bergmann C, Betev L, Bhasin A, Bhati AK, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biolcati E, Blanc A, Blanco F, Blanco F, Blau D, Blume C, Boccioli M, Bock N, Bogdanov A, Bøggild H, Bogolyubsky M, Boldizsár L, Bombara M, Bombonati C, Book J, Borel H, Borissov A, Bortolin C, Bose S, Bossú F, Botje M, Böttger S, Boyer B, Braun-Munzinger P, Bravina L, Bregant M, Breitner T, Broz M, Brun R, Bruna E, Bruno GE, Budnikov D, Buesching H, Bugaiev K, Busch O, Buthelezi Z, Caffarri D, Cai X, Caines H, Villar EC, Camerini P, Roman VC, Romeo GC, Carena F, Carena W, Carminati F, Díaz AC, Caselle M, Castellanos JC, Catanescu V, Cavicchioli C, Cepila J, Cerello P, Chang B, Chapeland S, Charvet JL, Chattopadhyay S, Chattopadhyay S, Cherney M, Cheshkov C, Cheynis B, Chiavassa E, Barroso VC, Chinellato DD, Chochula P, Chojnacki M, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Coccetti F, Coffin JP, Coli S, Balbastre GC, Del Valle ZC, Constantin P, Contin G, Contreras JG, Cormier TM, Morales YC, Maldonado IC, Cortese P, Cosentino MR, Costa F, Cotallo ME, Crescio E, Crochet P, Cuautle E, Cunqueiro L, Erasmo GD, Dainese A, Dalsgaard HH, Danu A, Das D, Das I, Das K, Dash A, Dash S, De S, Moregula ADA, de Barros GOV, De Caro A, de Cataldo G, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Remigis R, de Rooij R, Debski PR, Sanchez EDC, Delagrange H, Mercado YD, Dellacasa G, Deloff A, Demanov V, Dénes E, Deppman A, Di Bari D, Di Giglio C, Di Liberto S, Di Mauro A, Di Nezza P, Dietel T, Divià R, Djuvsland Ø, Dobrin A, Dobrowolski T, Domínguez I, Dönigus B, Dordic O, Driga O, Dubey AK, Dubuisson J, Ducroux L, Dupieux P, Majumdar AKD, Majumdar MRD, Elia D, Emschermann D, Engel H, Erdal HA, Espagnon B, Estienne M, Esumi S, Evans D, Evrard S, Eyyubova G, Fabjan CW, Fabris D, Faivre J, Falchieri D, Fantoni A, Fasel M, Fearick R, Fedunov A, Fehlker D, Fekete V, Felea D, Feofilov G, Téllez AF, Ferretti A, Ferretti R, Figiel J, Figueredo MAS, Filchagin S, Fini R, Finogeev D, Fionda FM, Fiore EM, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Fragkiadakis M, Frankenfeld U, Fuchs U, Furano F, Furget C, Girard MF, Gaardhøje JJ, Gadrat S, Gagliardi M, Gago A, Gallio M, Gangadharan DR, Ganoti P, Ganti MS, Garabatos C, Garcia-Solis E, Garishvili I, Gemme R, Gerhard J, Germain M, Geuna C, Gheata A, Gheata M, Ghidini B, Ghosh P, Gianotti P, Girard MR, Giraudo G, Giubellino P, Gladysz-Dziadus E, Glässel P, Gomez R, Ferreiro EG, Santos HG, González-Trueba LH, González-Zamora P, Gorbunov S, Gotovac S, Grabski V, Grajcarek R, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gros P, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Gutierrez CG, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Gutbrod H, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Harris JW, Hartig M, Hasch D, Hasegan D, Hatzifotiadou D, Hayrapetyan A, Heide M, Heinz M, Helstrup H, Herghelegiu A, Hernández C, Corral GH, Herrmann N, Hetland KF, Hicks B, Hille PT, Hippolyte B, Horaguchi T, Hori Y, Hristov P, Hřivnáčová I, Huang M, Huber S, Humanic TJ, Hwang DS, Ichou R, Ilkaev R, Ilkiv I, Inaba M, Incani E, Innocenti GM, Innocenti PG, Ippolitov M, Irfan M, Ivan C, Ivanov A, Ivanov M, Ivanov V, Jachołkowski A, Jacobs PM, Jancurová L, Jangal S, Janik R, Jena S, Jirden L, Jones GT, Jones PG, Jovanović P, Jung H, Jung W, Jusko A, Kalcher S, Kaliňák P, Kalisky M, Kalliokoski T, Kalweit A, Kamermans R, Kanaki K, Kang E, Kang JH, Kaplin V, Karavichev O, Karavicheva T, Karpechev E, Kazantsev A, Kebschull U, Keidel R, Khan MM, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim DJ, Kim DS, Kim DW, Kim HN, Kim JH, Kim JS, Kim M, Kim M, Kim S, Kim SH, Kirsch S, Kisel I, Kiselev S, Kisiel A, Klay JL, Klein J, Klein-Bösing C, Kliemant M, Klovning A, Kluge A, Knichel ML, Koch K, Köhler MK, Kolevatov R, Kolojvari A, Kondratiev V, Kondratyeva N, Konevskih A, Kornaś E, Don CKK, Kour R, Kowalski M, Kox S, Meethaleveedu GK, Kozlov K, Kral J, Králik I, Kramer F, Kraus I, Krawutschke T, Kretz M, Krivda M, Krizek F, Krumbhorn D, Krus M, Kryshen E, Krzewicki M, Kucheriaev Y, Kuhn C, Kuijer PG, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kushpil V, Kweon MJ, Kwon Y, La Rocca P, de Guevara PL, Lafage V, Lara C, Lardeux A, Larsen DT, Lazzeroni C, Le Bornec Y, Lea R, Lee KS, Lee SC, Lefèvre F, Lehnert J, Leistam L, Lenhardt M, Lenti V, Monzón IL, Vargas HL, Lévai P, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Liu L, Loenne PI, Loggins VR, Loginov V, Lohn S, Loizides C, Loo KK, Lopez X, Noriega ML, Torres EL, Løvhøiden G, Lu XG, Luettig P, Lunardon M, Luparello G, Luquin L, Luzzi C, Ma K, Ma R, Madagodahettige-Don DM, Maevskaya A, Mager M, Mahapatra DP, Maire A, Mal'Kevich D, Malaev M, Cervantes IM, Malinina L, Malzacher P, Mamonov A, Manceau L, Mangotra L, Manko V, Manso F, Manzari V, Mao Y, Mareš J, Margagliotti GV, Margotti A, Marín A, Markert C, Martashvili I, Martinengo P, Martínez MI, Davalos AM, García GM, Martynov Y, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastromarco M, Mastroserio A, Matthews ZL, Matyja A, Mayani D, Mayer C, Mazza G, Mazzoni MA, Meddi F, Menchaca-Rocha A, Lorenzo PM, Menis I, Pérez JM, Meres M, Mereu P, Miake Y, Midori J, Milano L, Milosevic J, Mischke A, Miśkowiec D, Mitu C, Mlynarz J, Mohanty AK, Mohanty B, Molnar L, Zetina LM, Monteno M, Montes E, Morando M, De Godoy DAM, Moretto S, Morsch A, Muccifora V, Mudnic E, Muhuri S, Müller H, Munhoz MG, Munoz J, Musa L, Musso A, Nandi BK, Nania R, Nappi E, Nattrass C, Navach F, Navin S, Nayak TK, Nazarenko S, Nazarov G, Nedosekin A, Nendaz F, Newby J, Nicassio M, Nielsen BS, Niida T, Nikolaev S, Nikolic V, Nikulin S, Nikulin V, Nilsen BS, Nilsson MS, Noferini F, Nooren G, Novitzky N, Nyanin A, Nyatha A, Nygaard C, Nystrand J, Obayashi H, Ochirov A, Oeschler H, Oh SK, Oleniacz J, Oppedisano C, Velasquez AO, Ortona G, Oskarsson A, Ostrowski P, Otterlund I, Otwinowski J, Oyama K, Ozawa K, Pachmayer Y, Pachr M, Padilla F, Pagano P, Jayarathna SP, Paić G, Painke F, Pajares C, Pal S, Pal SK, Palaha A, Palmeri A, Pappalardo GS, Park WJ, Patalakha DI, Paticchio V, Pavlinov A, Pawlak T, Peitzmann T, Peresunko D, Lara CEP, Perini D, Perrino D, Peryt W, Pesci A, Peskov V, Pestov Y, Peters AJ, Petráček V, Petran M, Petris M, Petrov P, Petrovici M, Petta C, Piano S, Piccotti A, Pikna M, Pillot P, Pinazza O, Pinsky L, Pitz N, Piuz F, Piyarathna DB, Platt R, Płoskoń M, Pluta J, Pocheptsov T, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polák K, Polichtchouk B, Pop A, Porteboeuf S, Pospíšil V, Potukuchi B, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puddu G, Pulvirenti A, Punin V, Putiš M, Putschke J, Quercigh E, Qvigstad H, Rachevski A, Rademakers A, Rademakers O, Radomski S, Räihä TS, Rak J, Rakotozafindrabe A, Ramello L, Ramírez Reyes A, Rammler M, Raniwala R, Raniwala S, Räsänen SS, Read KF, Real J, Redlich K, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Ricaud H, Riccati L, Ricci RA, Richter M, Riedler P, Riegler W, Riggi F, Cahuantzi MR, Rohr D, Röhrich D, Romita R, Ronchetti F, Rosinský P, Rosnet P, Rossegger S, Rossi A, Roukoutakis F, Rousseau S, Roy C, Roy P, Montero AJR, Rui R, Rivetti A, Rusanov I, Ryabinkin E, Rybicki A, Sadovsky S, Safařík K, Sahoo R, Sahu PK, Saini J, Saiz P, Sakai S, Sakata D, Salgado CA, Samanta T, Sambyal S, Samsonov V, Castro XS, Sándor L, Sandoval A, Sano M, Sano S, Santo R, Santoro R, Sarkamo J, Saturnini P, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schreiner S, Schuchmann S, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott PA, Scott R, Segato G, Selyuzhenkov I, Senyukov S, Seo J, Serci S, Serradilla E, Sevcenco A, Sgura I, Shabratova G, Shahoyan R, Sharma N, Sharma S, Shigaki K, Shimomura M, Shtejer K, Sibiriak Y, Siciliano M, Sicking E, Siemiarczuk T, Silenzi A, Silvermyr D, Simonetti G, Singaraju R, Singh R, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Skjerdal K, Smakal R, Smirnov N, Snellings R, Søgaard C, Soloviev A, Soltz R, Son H, Song J, Song M, Soos C, Soramel F, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Stefanini G, Steinbeck T, Steinpreis M, Stenlund E, Steyn G, Stocco D, Stock R, Stokkevag CH, Stolpovskiy M, Strmen P, Suaide AAP, Vásquez MAS, Sugitate T, Suire C, Sukhorukov M, Sumbera M, Susa T, Swoboda D, Symons TJM, de Toledo AS, Szarka I, Szostak A, Tagridis C, Takahashi J, Takaki JDT, Tauro A, Tavlet M, Muñoz GT, Telesca A, Terrevoli C, Thäder J, Thomas D, Thomas JH, Tieulent R, Timmins AR, Tlusty D, Toia A, Torii H, Toscano L, Tosello F, Traczyk T, Truesdale D, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Turvey AJ, Tveter TS, Ulery J, Ullaland K, Uras A, Urbán J, Urciuoli GM, Usai GL, Vacchi A, Vajzer M, Vala M, Palomo LV, Vallero S, van der Kolk N, van Leeuwen M, Vande Vyvre P, Vannucci L, Vargas A, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Venaruzzo M, Vercellin E, Vergara S, Vernekohl DC, Vernet R, Verweij M, Vickovic L, Viesti G, Vikhlyantsev O, Vilakazi Z, Baillie OV, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Viyogi YP, Vodopyanov A, Voloshin K, Voloshin S, Volpe G, von Haller B, Vranic D, Øvrebekk G, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner V, Wan R, Wang D, Wang Y, Wang Y, Watanabe K, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk A, Wilk G, Williams MCS, Windelband B, Karampatsos LX, Yang H, Yang S, Yasnopolskiy S, Yi J, Yin Z, Yokoyama H, Yoo IK, Yu W, Yuan X, Yushmanov I, Zabrodin E, Zach C, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zelnicek P, Zenin A, Zgura I, Zhalov M, Zhang X, Zhou D, Zichichi A, Zinovjev G, Zoccarato Y, Zynovyev M. Charged-particle multiplicity density at midrapidity in central Pb-Pb collisions at sqrt[S(NN)] = 2.76 TeV. Phys Rev Lett 2010; 105:252301. [PMID: 21231579 DOI: 10.1103/physrevlett.105.252301] [Citation(s) in RCA: 37] [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: 11/19/2010] [Indexed: 05/30/2023]
Abstract
The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair √ S NN = 2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary charged particles at midrapidity is 1584 ± 4(stat) ± 76(syst), which corresponds to 8.3 ± 0.4(syst) per participating nucleon pair. This represents an increase of about a factor 1.9 relative to pp collisions at similar collision energies, and about a factor 2.2 to central Au-Au collisions at √ S NN = 2.76 TeV. This measurement provides the first experimental constraint for models of nucleus-nucleus collisions at LHC energies.
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Affiliation(s)
- K Aamodt
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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Fekete V, Fekete Á, Fekete J, Liekens A, Schmitt-Kopplin P, Desmet G. Use of the kinetic plot method to compare the efficiency and resolution of liquid-phase separation techniques based on different driving forces. JPC-J PLANAR CHROMAT 2010. [DOI: 10.1556/jpc.23.2010.6.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chochula P, Choi K, Chojnacki M, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chuman F, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Cobanoglu O, Coffin JP, Coli S, Colla A, Conesa Balbastre G, Conesa Del Valle Z, Conner ES, Constantin P, Contin G, Contreras JG, Corrales Morales Y, Cormier TM, Cortese P, Cortés Maldonado I, Cosentino MR, Costa F, Cotallo ME, Crescio E, Crochet P, Cuautle E, Cunqueiro L, Cussonneau J, Dainese A, Dalsgaard HH, Danu A, Das I, Dash A, Dash S, de Barros GOV, De Caro A, de Cataldo G, de Cuveland J, De Falco A, De Gaspari M, de Groot J, De Gruttola D, De Marco N, De Pasquale S, De Remigis R, de Rooij R, de Vaux G, Delagrange H, Delgado Y, Dellacasa G, Deloff A, Demanov V, Dénes E, Deppman A, D'Erasmo G, Derkach D, Devaux A, Di Bari D, Di Giglio C, Di Liberto S, Di Mauro A, Di Nezza P, Dialinas M, Díaz L, Díaz R, Dietel T, Divià R, Djuvsland O, Dobretsov V, Dobrin A, Dobrowolski T, Dönigus B, Domínguez I, Don DMM, Dordic O, Dubey AK, Dubuisson J, 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A, Kamal A, Kamermans R, Kanaki K, Kang E, Kang JH, Kapitan J, Kaplin V, Kapusta S, Karavichev O, Karavicheva T, Karpechev E, Kazantsev A, Kebschull U, Keidel R, Khan MM, Khan SA, Khanzadeev A, Kharlov Y, Kikola D, Kileng B, Kim DJ, Kim DS, Kim DW, Kim HN, Kim J, Kim JH, Kim JS, Kim M, Kim M, Kim SH, Kim S, Kim Y, Kirsch S, Kisel I, Kiselev S, Kisiel A, Klay JL, Klein J, Klein-Bösing C, Kliemant M, Klovning A, Kluge A, Knichel ML, Kniege S, Koch K, Kolevatov R, Kolojvari A, Kondratiev V, Kondratyeva N, Konevskih A, Kornaś E, Kour R, Kowalski M, Kox S, Kozlov K, Kral J, Králik I, Kramer F, Kraus I, Kravcáková A, Krawutschke T, Krivda M, Krumbhorn D, Krus M, Kryshen E, Krzewicki M, Kucheriaev Y, Kuhn C, Kuijer PG, Kumar L, Kumar N, Kupczak R, Kurashvili P, Kurepin A, Kurepin AN, Kuryakin A, Kushpil S, Kushpil V, Kutouski M, Kvaerno H, Kweon MJ, Kwon Y, La Rocca P, Lackner F, Ladrón de Guevara P, Lafage V, Lal C, Lara C, Larsen DT, Laurenti G, Lazzeroni C, Le Bornec Y, Le Bris N, Lee H, 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J, Mereu P, Miake Y, Michalon A, Miftakhov N, Milano L, Milosevic J, Minafra F, Mischke A, Miśkowiec D, Mitu C, Mizoguchi K, Mlynarz J, Mohanty B, Molnar L, Mondal MM, Montaño Zetina L, Monteno M, Montes E, Morando M, Moretto S, Morsch A, Moukhanova T, Muccifora V, Mudnic E, Muhuri S, Müller H, Munhoz MG, Munoz J, Musa L, Musso A, Nandi BK, Nania R, Nappi E, Navach F, Navin S, Nayak TK, Nazarenko S, Nazarov G, Nedosekin A, Nendaz F, Newby J, Nianine A, Nicassio M, Nielsen BS, Nikolaev S, Nikolic V, Nikulin S, Nikulin V, Nilsen BS, Nilsson MS, Noferini F, Nomokonov P, Nooren G, Novitzky N, Nyatha A, Nygaard C, Nyiri A, Nystrand J, Ochirov A, Odyniec G, Oeschler H, Oinonen M, Okada K, Okada Y, Oldenburg M, Oleniacz J, Oppedisano C, Orsini F, Ortiz Velasquez A, Ortona G, Oskarsson A, Osmic F, Osterman L, Ostrowski P, Otterlund I, Otwinowski J, Ovrebekk G, Oyama K, Ozawa K, Pachmayer Y, Pachr M, Padilla F, Pagano P, Paić G, Painke F, Pajares C, Pal S, Pal SK, Palaha A, Palmeri A, Panse R, 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Zbroszczyk H, Zelnicek P, Zenin A, Zepeda A, Zgura I, Zhalov M, Zhang X, Zhou D, Zhou S, Zhu J, Zichichi A, Zinchenko A, Zinovjev G, Zoccarato Y, Zychácek V, Zynovyev M. Midrapidity antiproton-to-proton ratio in pp collisons at sqrt[s]=0.9 and 7 TeV measured by the ALICE experiment. Phys Rev Lett 2010; 105:072002. [PMID: 20868032 DOI: 10.1103/physrevlett.105.072002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Indexed: 05/29/2023]
Abstract
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at sqrt[s]=0.9 and 7 TeV during the initial running periods of the Large Hadron Collider. The measurement covers the transverse momentum interval 0.45<p_{t}<1.05 GeV/c and rapidity |y|<0.5. The ratio is measured to be R_{|y|<0.5}=0.957±0.006(stat)±0.014(syst) at 0.9 TeV and R_{|y|<0.5}=0.991±0.005(stat)±0.014(syst) at 7 TeV and it is independent of both rapidity and transverse momentum. The results are consistent with the conventional model of baryon-number transport and set stringent limits on any additional contributions to baryon-number transfer over very large rapidity intervals in pp collisions.
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Affiliation(s)
- K Aamodt
- Department of Physics, University of Oslo, Oslo, Norway
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Rutkovskiy A, Mariero L, Stenslokken K, Valen G, Vaage J, Dizayee S, Kaestner S, Kuck F, Piekorz R, Hein P, Matthes J, Nurnberg B, Herzig S, Hertel F, Switalski A, Bender K, Kienitz MC, Pott L, Fornai L, Angelini A, Erika Amstalden Van Hove E, Fedrigo M, Thiene G, Heeren R, Kruse M, Pongs O, Lehmann H, Martens-Lobenhoffer J, Hammwoehner M, Roehl F, Bukowska A, Bode-Boeger S, Goette A, Radicke S, Cotella C, Sblattero D, Schaefer M, Ravens U, Wettwer E, Santoro C, Seyler C, Kulzer M, Zitron E, Scholz E, Welke F, Thomas D, Karle C, Schmidt K, Radicke S, Dobrev D, Ravens U, Wettwer E, Houshmand N, Menesi D, Ravens U, Wettwer E, Cotella D, Papp J, Varro A, Szuts V, Szuts V, Houshmand N, Puskas L, Jost N, Virag L, Kiss I, Deak F, Varro A, Tereshchenko S, Gladyshev M, Kalachova G, Syshchik N, Gogolashvili N, Dedok E, Evert L, Wenzel J, Brandenburger M, Bogdan R, Richardt D, Reppel M, Hescheler J, Dendorfer A, Terlau H, Wiegerinck R, Galvez-Monton C, Jorge E, Martinez R, Ricart E, Cinca J, Bagavananthem Andavan G, Lemmens Gruber R, Brack K, Coote J, Ng G, Daimi H, Haj Khelil A, Neji A, Ben Hamda K, Maaoui S, Aranega A, Chibani J, Franco Jaime D, Tanko AS, Brack K, Coote J, Ng G, Doisne N, Hivert B, Cosnay P, Findlay I, Maupoil V, Daniel JM, Bielenberg W, Stieger P, Tillmanns H, Sedding D, Fortini C, Toffoletto B, Fucili A, Beltrami A, Fiorelli V, Francolini G, Ferrari R, Beltrami C, Castellani C, Ravara B, Tavano R, Thiene G, Vettor R, De Coppi P, Papini E, Angelini A, Molla F, Soldo A, Biondi A, Staszewsky L, Russo I, Gunetti M, Fagioli F, Latini R, Suffredini S, Sartiani L, Stillitano F, Mugelli A, Cerbai E, Krausgrill B, Halbach M, Soemantri S, Schenk K, Lange N, Hescheler J, Saric T, Muller-Ehmsen J, Kavanagh D, Zhao Y, Yemm A, Kalia N, Wright E, Farrell K, Wallrapp C, Geigle P, Lewis A, Stratford P, Malik N, Holt C, Krausgrill B, Raths M, Halbach M, Schenk K, Hescheler J, Muller-Ehmsen J, Zagallo M, Luni C, Serena E, Cimetta E, Zatti S, Giobbe G, Elvassore N, Serena E, Cimetta E, Zaglia T, Zatti S, Zambon A, Gordon K, Elvassore N, Mioulane M, Foldes G, Ali N, Harding S, Gorbe A, Szunyog A, Varga Z, Pirity M, Rungaruniert S, Dinnyes A, Csont T, Ferdinandy P, Foldes G, Mioulane M, Iqbal A, Schneider MD, Ali N, Harding S, Babes E, Babes V, Khodjaeva E, Ibadov R, Khalikulov K, Mansurov A, Astvatsatryan A, Senan M, Astvatsatryan A, Senan M, Nemeth A, Lenkey Z, Ajtay Z, Cziraki A, Sulyok E, Horvath I, Lobenhoffer J, Bode-Boger S, Li J, He Y, Yang X, Wang F, Xu H, Li X, Zhao X, Lin Y, Juszynski M, Ciszek B, Jablonska A, Stachurska E, Ratajska A, Atkinson A, Inada S, Li J, Sleiman R, Zhang H, Boyett M, Dobrzynski H, Fedorenko O, Hao G, Atkinson A, Yanni J, Buckley D, Anderson R, Boyett M, Dobrzynski H, Ma Y, Ma X, Hu Y, Yang Y, Huang D, Liu F, Huang Y, Liu C, Jedrzejczyk T, Balwicki L, Wierucki L, Zdrojewski T, Makhro A, Agarkova I, Vogel J, Gassmann M, Bogdanova A, Korybalska K, Pyda M, Witowski J, Ibatov A, Sozmen N, Seymen A, Tuncay E, Turan B, Huang Y, Ma Y, Yang Y, Liu F, Chen B, Li X, Houston-Feenstra L, Chiong JR, Jutzy K, Furundzija V, Kaufmann J, Kappert K, Meyborg H, Fleck E, Stawowy P, Ksiezycka-Majczynska E, Lubiszewska B, Kruk M, Kurjata P, Ruzyllo W, Ibatov A, Driesen R, Coenen T, Fagard R, Sipido K, Petrov V, Aksentijevic D, Lygate C, Makinen K, Sebag-Montefiore L, Medway D, Schneider J, Neubauer S, Gasser R, Holzwart E, Rainer P, Von Lewinski D, Maechler H, Gasser S, Roessl U, Pieske B, Krueger J, Kintscher U, Kappert K, Podramagi T, Paju K, Piirsoo A, Roosimaa M, Kadaja L, Orlova E, Ruusalepp A, Seppet E, Auquier J, Ginion A, Hue L, Horman S, Beauloye C, Vanoverschelde J, Bertrand L, Fekete V, Zvara A, Pipis J, Konya C, Csonka C, Puskas L, Csont T, Ferdinandy P, Gasser S, Rainer P, Holzwart E, Roessl U, Kraigher-Krainer E, Von Lewinksi D, Pieske B, Gasser R, Gonzalez-Loyola A, Barba I, Rodriguez-Sinovas A, Fernandez-Sanz C, Agullo E, Ruiz-Meana M, Garcia-Dorado D, Forteza M, Bodi Peris V, Monleon D, Mainar L, Morales J, Moratal D, Trapero I, Chorro F, Leszek P, Sochanowicz B, Szperl M, Kolsut P, Piotrowski W, Rywik T, Danko B, Kruszewski M, Stanley W, Khairallah R, Khanna N, O'shea K, Kristian T, Hecker P, Des Rosiers R, Fiskum G, Fernandez-Alfonso M, Guzman-Ruiz R, Somoza B, Gil-Ortega M, Attane C, Castan-Laurell I, Valet P, Ruiz-Gayo M, Maroz-Vadalazhskaya N, Denissevich T, Shumavetz V, Ostrovskiy Y, Schrepper A, Schwarzer M, Amorim P, Schoepe M, Mohr F, Doenst T, Chiellini G, Ghelardoni S, Saba A, Marchini M, Frascarelli S, Raffaelli A, Scanlan T, Zucchi R, Van Den Akker N, Molin D, Kolk F, Jeukens F, Olde Engberink R, Waltenberger J, Post M, Van Den Akker N, Molin D, Verbruggen S, Schulten H, Post M, Waltenberger J, Rochais F, Kelly R, Aberg M, Johnell M, Wickstrom M, Siegbahn A, Dimitrakis P, Groppalli V, Ott D, Seifriz F, Suter T, Zuppinger C, Kashcheyeu Y, Mueller R, Wiesen M, Saric T, Gruendemann D, Hescheler J, Herzig S, Falcao-Pires I, Fontes-Sousa A, Lopes-Conceicao L, Bras-Silva C, Leite-Moreira A, Bukauskas F, Palacios-Prado N, Norheim F, Raastad T, Thiede B, Drevon C, Haugen F, Lindner D, Westermann D, Zietsch C, Schultheiss HP, Tschoepe C, Horn M, Graham H, Hall M, Richards M, Clarke J, Dibb K, Trafford A, Cheng CF, Lin H, Eigeldiger-Berthou S, Buntschu P, Frobert A, Flueck M, Tevaearai H, Kadner A, Mikhailov A, Torrado M, Centeno A, Lopez E, Lourido L, Castro Beiras A, Popov T, Srdanovic I, Petrovic M, Canji T, Kovacevic M, Jovelic A, Sladojevic M, Panic G, Kararigas G, Fliegner D, Regitz-Zagrosek V, De La Rosa Sanchez A, Dominguez J, Sedmera D, Franco D, Aranega A, Medunjanin S, Burgbacher F, Schmeisser A, Strasser R, Braun-Dullaeus R, Li X, Ma Y, Yang Y, Liu F, Han W, Chen B, Zhang J, Gao X, Bayliss C, Song W, Stuckey D, Dyer E, Leung MC, Monserrat L, Marston S, Sorriento D, Santulli G, Fusco A, Trimarco B, Iaccarino G, Revnic C, Ginghina C, Revnic F, Paillard M, Liang J, Strub G, Gomez L, Hait N, Allegood J, Lesnefsky E, Spiegel S, Zuchi C, Coiro S, Bettini M, Ciliberti G, Mancini I, Tritto I, Becker L, Ambrosio G, Adam T, Sharp S, Opie L, Lecour S, Khaliulin I, Parker J, Halestrap A, Kandasamy A, Schulz R, Schoepe M, Schwarzer M, Schrepper A, Osterholt M, Amorim P, Mohr F, Doenst T, Fernandez-Sanz C, Ruiz-Meana M, Miro-Casas E, Agullo E, Boengler K, Schulz R, Garcia-Dorado D, Menazza S, Canton M, Sheeran F, Di Lisa F, Pepe S, Borchi E, Manni M, Bargelli V, Giordano C, D'amati G, Cerbai E, Nediani C, Raimondi L, Micova P, Balkova P, Kolar F, Neckar J, Novak F, Novakova O, Schuchardt M, Toelle M, Pruefer N, Pruefer J, Jankowski V, Jankowski J, Van Der Giet M, Han W, Su Y, Zervou S, Aksentijevic D, Lygate C, Neubauer S, Seidel B, Korkmaz S, Radovits T, Hirschberg K, Loganathan S, Barnucz E, Karck M, Szabo G, Aggeli I, Kefaloyianni E, Beis I, Gaitanaki C, Lacerda L, Somers S, Opie L, Lecour S, Brack K, Coote J, Ng G, Paur H, Nikolaev V, Lyon A, Harding S, Bras-Silva C. Sunday, 18 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq176] [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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Addae-Mensah KA, Cheung YK, Fekete V, Rendely MS, Sia SK. Actuation of elastomeric microvalves in point-of-care settings using handheld, battery-powered instrumentation. Lab Chip 2010; 10:1618-22. [PMID: 20383403 DOI: 10.1039/c002349c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Although advanced fluid handling using elastomeric valves is useful for a variety of lab-on-a-chip procedures, their operation has traditionally relied on external laboratory infrastructure (such as gas tanks, computers, and ground electricity). This dependence has held back the use of elastomeric microvalves for point-of-care settings. Here, we demonstrate that microfabricated microvalves, via liquid-filled control channels, can be actuated using only a handheld instrument powered by a 9 V battery. This setup can achieve on-off fluid control with fast response times, coordinated switching of multiple valves, and operation of a biological assay. In the future, this technique may enable the widely used elastomeric microvalves (made by multilayer soft lithography) to be increasingly adopted for portable sensors and lab-on-a-chip systems.
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Affiliation(s)
- Kweku A Addae-Mensah
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Ave, New York, NY 10027, USA
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Csonka C, Kupai K, Kocsis GF, Novák G, Fekete V, Bencsik P, Csont T, Ferdinandy P. Measurement of myocardial infarct size in preclinical studies. J Pharmacol Toxicol Methods 2010; 61:163-70. [PMID: 20188845 DOI: 10.1016/j.vascn.2010.02.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Revised: 02/19/2010] [Accepted: 02/20/2010] [Indexed: 12/18/2022]
Abstract
Ischemic heart disease is a major cause of morbidity and mortality worldwide. Myocardial ischemia followed by reperfusion results in tissue injury termed ischemia/reperfusion injury which is characterized by decreased myocardial contractile function, occurrence of arrhythmias, and development of tissue necrosis (infarction). These pathologies are all relevant as clinical consequences of myocardial ischemia/reperfusion injury and they are also important as experimental correlates and endpoints. The most critical determinant of acute and long-term mortality after myocardial infarction is the volume of the infarcted tissue. Therefore, development of cardioprotective therapies aims at reducing the size of the infarct developing due to myocardial ischemia/reperfusion injury. Different techniques are available to measure myocardial infarct size in humans and in experimental settings, however, accurate determination of the extent of infarction is necessary to evaluate interventions that may delay the onset of necrosis and/or limit the total extent of infarct size during ischemia/reperfusion. This paper highlights recent advances of the different techniques to measure infarct size.
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Affiliation(s)
- Csaba Csonka
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary.
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Kupai K, Csonka C, Fekete V, Odendaal L, van Rooyen J, Marais DW, Csont T, Ferdinandy P. Cholesterol diet-induced hyperlipidemia impairs the cardioprotective effect of postconditioning: role of peroxynitrite. Am J Physiol Heart Circ Physiol 2009; 297:H1729-35. [DOI: 10.1152/ajpheart.00484.2009] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [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: 12/24/2022]
Abstract
The aim of the present study was to investigate if hyperlipidemia interferes with the infarct size-limiting effect of postconditioning and to study the involvement of peroxynitrite in this phenomenon. Rats were fed a 2% cholesterol-enriched or normal diet for 12 wk. Infarct size by triphenyltetrazolium chloride staining was measured in hearts isolated from both groups and subjected to 30 min coronary occlusion followed by 120 min reperfusion with or without the postconditioning protocol induced by six cycles of 10 s coronary occlusion and 10 s reperfusion at the onset of the reperfusion. Postconditioning significantly decreased infarct size in the normolipidemic but not in the hyperlipidemic group. Postconditioning increased cardiac 3-nitrotyrosine concentration (a marker for peroxynitrite formation) in the normal but not in the cholesterol-fed group when measured at the 5th min of reperfusion. Next, we tested if the postconditioning-induced acute increase in peroxynitrite is involved in the cardioprotection in normolipidemic animals in separate experiments. Postconditioning failed to decrease infarct size in the presence of the peroxynitrite decomposition catalyst 5,10,15,20-tetrakis-[4-sulfonatophenyl]-porphyrinato-iron [III] (20 mg/l) in normolipidemic animals. We conclude that an early increase in peroxynitrite after postconditioning plays a role in cardioprotection. Furthermore, hyperlipidemia blocks the cardioprotective effect of postconditioning at least in part via deterioration of the postconditioning-induced early increase in peroxynitrite formation.
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Affiliation(s)
- Krisztina Kupai
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, and
- Pharmahungary Group, Szeged, Hungary
| | - Csaba Csonka
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, and
- Pharmahungary Group, Szeged, Hungary
| | - Veronika Fekete
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, and
- Pharmahungary Group, Szeged, Hungary
| | - Louise Odendaal
- Experimental Anti-Oxidant Research Group, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Cape Town
| | - Jacques van Rooyen
- Experimental Anti-Oxidant Research Group, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Cape Town
| | - De Wet Marais
- Nutritional Intervention Research Unit, Medical Research Council, Cape Town, South Africa
| | - Tamás Csont
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, and
- Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Cardiovascular Research Group, Department of Biochemistry, University of Szeged, and
- Pharmahungary Group, Szeged, Hungary
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Detobel F, Fekete V, De Malsche W, De Bruyne S, Gardeniers H, Desmet G. Estimation of surface desorption times in hydrophobically coated nanochannels and their effect on shear-driven and pressure-driven chromatography. Anal Bioanal Chem 2009; 394:399-411. [DOI: 10.1007/s00216-009-2614-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 01/07/2009] [Accepted: 01/09/2009] [Indexed: 10/21/2022]
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Fekete V, Clicq D, De Malsche W, Gardeniers H, Desmet G. Use of 120-nm deep channels for liquid chromatographic separations. J Chromatogr A 2008; 1189:2-9. [DOI: 10.1016/j.chroma.2007.11.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 10/02/2007] [Accepted: 11/12/2007] [Indexed: 10/22/2022]
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Kocsis G, Odendaal L, Fekete V, Molnár É, Janáky T, Csont T, Ferdinandy P. Lovastatin interferes with the infarct size-limiting effect of pre- and postconditioning: Role of CoQ9 and salvage kinases. J Mol Cell Cardiol 2008. [DOI: 10.1016/j.yjmcc.2008.02.249] [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: 10/22/2022]
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Csonka C, Fekete V, Kupai K, Csont T, Puskas L, Ferdinandy P. Effect of postconditioning on the gene expression pattern of rat hearts: A DNA microarray study. J Mol Cell Cardiol 2008. [DOI: 10.1016/j.yjmcc.2008.02.253] [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: 10/22/2022]
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Kocsis GF, Pipis J, Fekete V, Kovács-Simon A, Odendaal L, Molnár E, Giricz Z, Janáky T, van Rooyen J, Csont T, Ferdinandy P. Lovastatin interferes with the infarct size-limiting effect of ischemic preconditioning and postconditioning in rat hearts. Am J Physiol Heart Circ Physiol 2008; 294:H2406-9. [PMID: 18359895 DOI: 10.1152/ajpheart.00862.2007] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [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: 11/22/2022]
Abstract
Statins have been shown to be cardioprotective; however, their interaction with endogenous cardioprotection by ischemic preconditioning and postconditioning is not known. In the present study, we examined if acute and chronic administration of the 3-hydroxy-3-methylglutaryl CoA reductase inhibitor lovastatin affected the infarct size-limiting effect of ischemic preconditioning and postconditioning in rat hearts. Wistar rats were randomly assigned to the following three groups: 1) vehicle (1% methylcellulose per os for 12 days), 2) chronic lovastatin (15 mg.kg(-1).day(-1) per os for 12 days), and 3) acute lovastatin (1% methylcellulose per os for 12 days and 50 micromol/l lovastatin in the perfusate). Hearts isolated from the three groups were either subjected to a nonconditioning (aerobic perfusion followed by 30-min coronary occlusion and 120-min reperfusion, i.e., test ischemia-reperfusion), preconditioning (three intermittent periods of 5-min ischemia-reperfusion cycles before test ischemia-reperfusion), or postconditioning (six cycles of 10-s ischemia-reperfusion after test ischemia) perfusion protocol. Preconditioning and postconditioning significantly decreased infarct size in vehicle-treated hearts. However, preconditioning failed to decrease infarct size in acute lovastatin-treated hearts, but the effect of postconditioning remained unchanged. Chronic lovastatin treatment abolished postconditioning but not preconditioning; however, it decreased infarct size in the nonconditioned group. Myocardial levels of coenzyme Q9 were decreased in both acute and chronic lovastatin-treated rats. Western blot analysis revealed that both acute and chronic lovastatin treatment attenuated the phoshorylation of Akt; however, acute but not chronic lovastatin treatment increased the phosphorylation of p42 MAPK/ERK. We conclude that, although lovastatin may lead to cardioprotection, it interferes with the mechanisms of cardiac adaptation to ischemic stress.
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Affiliation(s)
- Gabriella F Kocsis
- Cardiovascular Research Group and PharmaHungary Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, Hungary
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Abstract
Petite-positivity - the ability to tolerate the loss of mtDNA - was examined after the treatment with ethidium bromide (EB) in over hundred isolates from the Saccharomyces/Kluyveromyces complex. The identity of petite mutants was confirmed by the loss of specific mtDNA DAPI staining patterns. Besides unequivocal petite-positive and petite-negative phenotypes, a few species exhibited temperature sensitive petite positive phenotype and petiteness of a few other species could be observed only at the elevated EB concentrations. Several yeast species displayed a mixed 'moot' phenotype, where a major part of the population did not tolerate the loss of mtDNA but several cells did. The genera from postwhole-genome duplication lineages (Saccharomyces, Kazachstania, Naumovia, Nakaseomyces) were invariably petite-positive. However, petite-positive traits could also be observed among the prewhole-genome duplication species.
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Affiliation(s)
- Veronika Fekete
- Comenius University, Faculty of Natural Sciences, Department of Biochemistry, Mlynská Dolina, Bratislava, Slovakia
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Fekete V, Clicq D, De Malsche W, Gardeniers H, Desmet G. Detection enhancement in nano-channels using micro-machined silicon groove. J Chromatogr A 2006; 1130:151-7. [PMID: 16797564 DOI: 10.1016/j.chroma.2006.05.087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2006] [Revised: 05/29/2006] [Accepted: 05/30/2006] [Indexed: 11/30/2022]
Abstract
The present paper reports on an experimental study of the possibility to use a micro-machined detection groove to enhance the detection sensitivity in flat-rectangular nano-channels for ultra-rapid liquid chromatography separations. Transversally running detection grooves with three different axial widths (respectively, 2, 4 and 6 microm) and one depth (4.75 microm) were tested in glass and silicon channels for the whole range of detectable fluorescein isothiocyanate isomer I, FITC, concentrations. The groove with the most square-like cross-section (i.e., 4 microm wide and 4.75 microm deep) yielded the best combination of detection gain and minimal additional band broadening. In a 1cm long channel, the effective plate loss caused by the 4 microm wide groove would only be of the order of 20%, while the gain in S/N-ratio was of the order of a factor of 5. The detection groove concept yields larger gains in silicon channel substrates than in glass channel substrates, due to the larger stray light losses occurring in the latter.
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Affiliation(s)
- Veronika Fekete
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium.
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De Malsche W, Clicq D, Eghbali H, Fekete V, Gardeniers H, Desmet G. An automated injection system for sub-micron sized channels used in shear-driven-chromatography. Lab Chip 2006; 6:1322-7. [PMID: 17102846 DOI: 10.1039/b607683a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This paper describes a method to automatically and reproducibly inject sharply delimited sample plugs in the shallow (i.e., sub-micron) channels typically used in shear driven chromatography. The formation of asymmetric plugs, which typically occurs during loading of the sample in wide channels, is circumvented by etching a slit in the middle of the channel that is connected to a micro-well and a vacuum system with syringes for the supply of both the analyte and the mobile phase. The design of the injection slit was supported by a series of CFD simulations to optimize its shape and that of the corresponding injection well. The system was intensively tested experimentally and showed good reproducibility, both for the width and the area of the injected peaks (relative standard deviations are max. 4 and 6%, respectively). The concentration of the injected plug was found to be approximately 80% of the original sample concentration. It was also observed that with the current setup the lower limit of the peak width was about 120 microm. This is a consequence of the fact that the peak width originating from the convection filling step becomes negligible to the contribution of diffusion during the filling and flushing time. Being fully automated and perfectly closed, the presently proposed injection system also paves the way to integrate other functionalities in shear driven chromatography, i.e. gradient elution and parallelization.
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