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Kyriaki Mikellidou, Marco Turi, David Charles Burr
Humans maintain a stable representation of the visual world effortlessly, despite constant movements of the eyes, head and body, across multiple planes. Whereas visual stability in the face of saccadic eye-movements has been intensely researched, fewer studies have investigated retinal image transformations induced by head movements, especially in the frontal plane. Unlike head rotations in the horizontal and sagittal planes, tilting the head in the frontal plane is only partially counteracted by torsional eye-movements, and consequently induces a distortion of the retinal image to which we seem to be completely oblivious...
November 30, 2016: Journal of Neurophysiology
Sandrine Tury, Véronique Becette, Franck Assayag, Sophie Vacher, Camille Benoist, Maud Kamal, Elisabetta Marangoni, Ivan Bièche, Florence Lerebours, Céline Callens
COX-2 expression level and prognostic value are still a matter of debate in breast cancer (BC). We addressed these points in the context of PIK3CA mutational status. Based on an interesting study of aspirin efficacy in colorectal cancer, we hypothesized that celecoxib antitumoral activity may be restricted to PIK3CA mutated BC.COX-2 mRNA expression was analyzed in 446 BC samples and in 61 BC patient-derived xenografts (PDX) using quantitative RT-PCR. The prognostic impact of COX-2 expression level was assessed independently and according to PIK3CA mutational status in our cohort and in a validation set of 817 BC...
November 8, 2016: Oncotarget
Gábor Pohl, Letif Mones, László Turi
We performed a series of comparative quantum chemical calculations on various size negatively charged methanol clusters, CH3OHn(-). The clusters are examined in their optimized geometries (n = 2-4), and in geometries taken from mixed quantum-classical molecular dynamics simulations at finite temperature (n = 2-128). These latter structures model potential electron binding sites in methanol clusters and in bulk methanol. In particular, we compute the vertical detachment energy (VDE) of an excess electron from increasing size methanol cluster anions using quantum chemical computations at various levels of theory including a one-electron pseudopotential model, several density functional theory (DFT) based methods, MP2 and coupled-cluster CCSD(T) calculations...
October 28, 2016: Journal of Chemical Physics
Bruna C Turi, Jamile S Codogno, Romulo A Fernandes, Xuemei Sui, Carl J Lavie, Steven N Blair, Henrique L Monteiro
BACKGROUND: Evidence has shown that physical activity (PA) is associated with low mortality risk. However, data about reduced mortality due to PA are scarce in developing countries and the dose-response relationship between PA from different domains and all-cause mortality remains unclear. Thus, the aim of this study is to investigate the association of PA from different domains on all-cause mortality among Brazilian adults. METHODS: 679 males and females composed the study sample...
October 24, 2016: Journal of Physical Activity & Health
Anne Harman Chappelle, Mark Spence, Bernard Tury
No abstract text is available yet for this article.
November 2016: Critical Reviews in Toxicology
Lauren A E Erland, Christina E Turi, Praveen K Saxena
Serotonin is an ancient indoleamine that was presumably part of the life cycle of the first prokaryotic life forms on Earth millions of years ago where it functioned as a powerful antioxidant to combat the increasingly oxygen rich atmosphere. First identified as a neurotransmitter signaling molecule in mammals, it is ubiquitous across all forms of life. Serotonin was discovered in plants many years after its discovery in mammals; however, it has now been confirmed in almost all plant families, where it plays important roles in plant growth and development, including functions in energy acquisition, seasonal cycles, modulation of reproductive development, control of root and shoot organogenesis, maintenance of plant tissues, delay of senescence, and responses to biotic and abiotic stresses...
October 11, 2016: Biotechnology Advances
Charlotte Thoresen Wittek, Turi Reiten Finserås, Ståle Pallesen, Rune Aune Mentzoni, Daniel Hanss, Mark D Griffiths, Helge Molde
Video gaming has become a popular leisure activity in many parts of the world, and an increasing number of empirical studies examine the small minority that appears to develop problems as a result of excessive gaming. This study investigated prevalence rates and predictors of video game addiction in a sample of gamers, randomly selected from the National Population Registry of Norway (N = 3389). Results showed there were 1.4 % addicted gamers, 7.3 % problem gamers, 3.9 % engaged gamers, and 87.4 % normal gamers...
2016: International Journal of Mental Health and Addiction
Nicola Piovesan, Leo Turi, Enrico Toigo, Borja Martinez, Michele Rossi
We consider real-life smart parking systems where parking lot occupancy data are collected from field sensor devices and sent to backend servers for further processing and usage for applications. Our objective is to make these data useful to end users, such as parking managers, and, ultimately, to citizens. To this end, we concoct and validate an automated classification algorithm having two objectives: (1) outlier detection: to detect sensors with anomalous behavioral patterns, i.e., outliers; and (2) clustering: to group the parking sensors exhibiting similar patterns into distinct clusters...
2016: Sensors
Tommy L Lewis, Gergely F Turi, Seok-Kyu Kwon, Attila Losonczy, Franck Polleux
The importance of mitochondria for neuronal function is evident by the large number of neurodegenerative diseases that have been associated with a disruption of mitochondrial function or transport (reviewed in [1, 2]). Mitochondria are essential for proper biological function as a result of their ability to produce ATP through oxidative phosphorylation, buffer cytoplasmic calcium, regulate lipid biosynthesis, and trigger apoptosis (reviewed in [2]). Efficient transport of mitochondria is thought to be particularly important in neurons in light of their compartmentalization, length of axonal processes, and high-energy requirements (reviewed in [3])...
October 10, 2016: Current Biology: CB
Marcelo R Ribeiro-Dos-Santos, Kyle R Lynch, Ricardo R Agostinete, Santiago Maillane-Vanegas, Bruna Turi-Lynch, Igor H Ito, Rafael Luiz-de-Marco, Mario A Rodrigues-Junior, Rômulo A Fernandes
BACKGROUND: The practice of swimming in "hypogravity" conditions has potential to decrease bone formation because it decreases the time engaged in weight-bearing activities usually observed in the daily activities of adolescents. Therefore, adolescents competing in national levels would be more exposed to these deleterious effects, because they are engaged in long routines of training during most part of the year. To analyze the effect of swimming on bone mineral density (BMD) gain among adolescents engaged in national level competitions during a 9-month period...
August 2016: Journal of Bone Metabolism
Antoine Le Guernic, Wilfried Sanchez, Olivier Palluel, Anne Bado-Nilles, Magali Floriani, Cyril Turies, Edith Chadili, Claire Della Vedova, Isabelle Cavalié, Christelle Adam-Guillermin, Jean-Marc Porcher, Alain Geffard, Stéphane Betoulle, Béatrice Gagnaire
To get closer to the environmental reality, ecotoxicological studies should no longer consider the evaluation of a single pollutant, but rather combination of stress and their interaction. The aim of this study was to determine if responses of a fish to a sudden biological stress could be modified by a prior exposure to a chemical stress (a polymetallic contamination). For this purpose, in situ experiment was conducted in three ponds in the Haute-Vienne department (France). One pond was chosen for its high uranium concentration due to uranium mine tailings, and the two other ponds, which were not submitted to these tailings...
July 30, 2016: Ecotoxicology
Giovanni Anobile, Elisa Castaldi, Marco Turi, Francesca Tinelli, David C Burr
Considerable recent work suggests that mathematical abilities in children correlate with the ability to estimate numerosity. Does math correlate only with numerosity estimation, or also with other similar tasks? We measured discrimination thresholds of school-age (6- to 12.5-years-old) children in 3 tasks: numerosity of patterns of relatively sparse, segregatable items (24 dots); numerosity of very dense textured patterns (250 dots); and discrimination of direction of motion. Thresholds in all tasks improved with age, but at different rates, implying the action of different mechanisms: In particular, in young children, thresholds were lower for sparse than textured patterns (the opposite of adults), suggesting earlier maturation of numerosity mechanisms...
August 2016: Developmental Psychology
Marta Balietti, Stefano R Giannubilo, Belinda Giorgetti, Moreno Solazzi, Angelo Turi, Tiziana Casoli, Andrea Ciavattini, Patrizia Fattorettia
No abstract text is available yet for this article.
September 2016: Journal of the Science of Food and Agriculture
George K Turi, Virginia Donovan, Julie DiGregorio, Theresa M Criscitelli, Benjamin Kashan, Stephan Barrientos, Jose Ramon Balingcongan, Scott Gorenstein, Harold Brem
PURPOSE: To clarify the histopathology of acute osteomyelitis, chronic osteomyelitis, primary vasculitis, and secondary-type vasculitis. TARGET AUDIENCE: This continuing education activity is intended for physicians and nurses with an interest in skin and wound care. OBJECTIVES/OUTCOMES: After participating in this educational activity, the participant should be better able to:1. Describe the parameters and significance of this study.2. Identify chronic wound diagnosis and treatment...
August 2016: Advances in Skin & Wound Care
Zoltán Vokó, Gergő Túri, Adriána Zsólyom
INTRODUCTION: The burden of oral cancer is high in Hungary. AIM: To study the cost-effectiveness of potential oral cancer screening in Hungary. METHOD: Three strategies were compared: no introduction of screening, organized yearly screening for 40-year-old males in general medical practise, and opportunistic screening of high risk 40-year-old males in primary care. Local estimates of health utilities and costs of each health state and of the screening programmes were identified...
July 2016: Orvosi Hetilap
László Turi
We evaluate the applicability of a hierarchy of quantum models in characterizing the binding energy of excess electrons to water clusters. In particular, we calculate the vertical detachment energy of an excess electron from water cluster anions with methods that include one-electron pseudopotential calculations, density functional theory(DFT) based calculations, and ab initio quantum chemistry using MP2 and eom-EA-CCSD levels of theory. The examined clusters range from the smallest cluster size (n = 2) up to nearly nanosize clusters with n = 1000 molecules...
April 21, 2016: Journal of Chemical Physics
Zoltan G Turi
No abstract text is available yet for this article.
July 11, 2016: JACC. Cardiovascular Interventions
Stela Iurciuc, Claudiu Avram, Vladiana Turi, Anda Militaru, Adina Avram, Anca Maria Cimpean, Mircea Iurciuc
AIM: To evaluate the impact of physical training on central hemodynamic parameters and elasticity of large arteries in hypertensive patients. PATIENTS AND METHODS: A total of 129 hypertensive patients were divided into two groups: group A followed lifestyle changes and physical training; and group B acted as a control group; seven parameters were recorded: Pulse wave velocity (PWVao), systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), central aortic systolic blood pressure (SBPao), aortic diastolic blood pressure (DBPao), and central aortic pulse pressure (PPao)...
July 2016: In Vivo
Turi McNamee
No abstract text is available yet for this article.
July 2016: Southern Medical Journal
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