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https://www.readbyqxmd.com/read/27913715/doping-among-professional-athletes-in-iran-a-test-of-akers-s-social-learning-theory
#1
Saeed Kabiri, John K Cochran, Bernadette J Stewart, Mahmoud Sharepour, Mohammad Mahdi Rahmati, Syede Massomeh Shadmanfaat
The use of performance-enhancing drugs (PED) is common among Iranian professional athletes. As this phenomenon is a social problem, the main purpose of this research is to explain why athletes engage in "doping" activity, using social learning theory. For this purpose, a sample of 589 professional athletes from Rasht, Iran, was used to test assumptions related to social learning theory. The results showed that there are positive and significant relationships between the components of social learning theory (differential association, differential reinforcement, imitation, and definitions) and doping behavior (past, present, and future use of PED)...
December 1, 2016: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/27913658/social-determinants-and-teen-pregnancy-prevention-exploring-the-role-of-nontraditional-partnerships
#2
Taleria R Fuller, Carla P White, Jocelyn Chu, Deborah Dean, Naomi Clemmons, Carmen Chaparro, Jessica L Thames, Anitra Belle Henderson, Pebbles King
Addressing the social determinants of health (SDOH) that influence teen pregnancy is paramount to eliminating disparities and achieving health equity. Expanding prevention efforts from purely individual behavior change to improving the social, political, economic, and built environments in which people live, learn, work, and play may better equip vulnerable youth to adopt and sustain healthy decisions. In 2010, the Centers for Disease Control and Prevention in partnership with the Office of Adolescent Health funded state- and community-based organizations to develop and implement the Teen Pregnancy Prevention Community-Wide Initiative...
December 1, 2016: Health Promotion Practice
https://www.readbyqxmd.com/read/27913116/multiple-conformations-of-gal3-protein-drive-the-galactose-induced-allosteric-activation-of-the-gal-genetic-switch-of-saccharomyces-cerevisiae
#3
Rajesh Kumar Kar, Hungyo Kharerin, Ranjith Padinhateeri, Paike Jayadeva Bhat
Gal3p is an allosteric monomeric protein which activates the GAL genetic switch of Saccharomyces cerevisiae in response to galactose. Expression of constitutive mutant of Gal3p or overexpression of wild-type Gal3p activates the GAL switch in the absence of galactose. These data suggest that Gal3p exists as an ensemble of active and inactive conformations. Structural data has indicated that Gal3p exists in open (inactive) and closed (active) conformations. However, mutant of Gal3p that predominantly exists in inactive conformation and yet capable of responding to galactose has not been isolated...
November 29, 2016: Journal of Molecular Biology
https://www.readbyqxmd.com/read/27913057/a-comparison-of-profiles-of-transtheoretical-model-constructs-of-change-among-depressed-and-nondepressed-women-at-risk-for-an-alcohol-exposed-pregnancy
#4
Shannon K Johnson, Kirk von Sternberg, Mary M Velasquez
INTRODUCTION: The efficacy of a series of interventions to reduce risk of alcohol-exposed pregnancies is well-established, yet some subsets of women remain at risk. For instance, in CHOICES, a randomized clinical trial of an intervention to prevent alcohol-exposed pregnancy, nondepressed women reduced risk drinking at roughly twice the rate of women with depression (49% vs. 24%). This secondary analysis of CHOICES data examines constructs that can explicate differences between nondepressed and depressed women in the process of changing alcohol behavior...
November 29, 2016: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/27913056/the-best-of-intentions-a-structural-analysis-of-the-association-between-socioeconomic-disadvantage-and-unintended-pregnancy-in-a-sample-of-mothers-from-the-national-longitudinal-survey-of-youth-1979
#5
Akilah Wise, Arline T Geronimus, Pamela J Smock
OBJECTIVES: Births to less educated women are more likely to be classified as unintended than other births. We question a common interpretation that this association reflects a lack of contraceptive knowledge or self-efficacy among less educated women. We theorize that differences in early life educational advantages structure pregnancy desires and the salience and opportunity costs of precise fertility timing. We hypothesize that net of covariates indicative of early educational disadvantage, mothers with less education are not more likely to report births as unintended compared with mothers who have attained higher levels of education before becoming mothers...
November 29, 2016: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/27912737/hcv-prevalence-can-predict-hiv-epidemic-potential-among-people-who-inject-drugs-mathematical-modeling-analysis
#6
Vajiheh Akbarzadeh, Ghina R Mumtaz, Susanne F Awad, Helen A Weiss, Laith J Abu-Raddad
BACKGROUND: Hepatitis C virus (HCV) and HIV are both transmitted through percutaneous exposures among people who inject drugs (PWID). Ecological analyses on global epidemiological data have identified a positive association between HCV and HIV prevalence among PWID. Our objective was to demonstrate how HCV prevalence can be used to predict HIV epidemic potential among PWID. METHODS: Two population-level models were constructed to simulate the evolution of HCV and HIV epidemics among PWID...
December 3, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27912242/deciphering-the-origin-of-dogs-from-fossils-to-genomes
#7
Adam H Freedman, Robert K Wayne
Understanding the timing and geographic context of dog origins is a crucial component for understanding human history, as well as the evolutionary context in which the morphological and behavioral divergence of dogs from wolves occurred. A substantial challenge to understanding domestication is that dogs have experienced a complicated demographic history. An initial severe bottleneck was associated with domestication followed by postdivergence gene flow between dogs and wolves, as well as population expansions, contractions, and replacements...
November 28, 2016: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/27912164/manganese-ii-chloride-alters-behavioral-and-neurochemical-parameters-in-larvae-and-adult-zebrafish
#8
Stefani Altenhofen, Melissa Talita Wiprich, Laura Roesler Nery, Carlos Eduardo Leite, Monica Ryff Moreira Roca Vianna, Carla Denise Bonan
Manganese (Mn) is an essential metal for organisms, but high levels can cause serious neurological damage. The aim of this study was to evaluate the effects of MnCl2 exposure on cognition and exploratory behavior in adult and larval zebrafish and correlate these findings with brain accumulation of Mn, overall brain tyrosine hydroxylase (TH) levels, dopamine (DA) levels, 3,4-dihydroxyphenylacetic acid (DOPAC) levels and cell death markers in the nervous system. Adults exposed to MnCl2 for 4days (0.5, 1.0 and 1...
November 17, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27912024/functional-diversity-of-non-lethal-effects-chemical-camouflage-and%C3%A2-variation-in-fish-avoidance-in-colonizing-beetles
#9
William J Resetarits, Matthew R Pintar
Predators play an extremely important role in natural communities. In freshwater systems, fish can dominate sorting both at the colonization and post-colonization stage. Specifically, for many colonizing species, fish can have non-lethal, direct effects that exceed the lethal direct effects of predation. Functionally diverse fish species with a range of predatory capabilities have previously been observed to elicit functionally equivalent responses on oviposition in tree frogs. We tested this hypothesis of functional equivalence of non-lethal effects for four predatory fish species, using naturally colonizing populations of aquatic beetles...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911937/an-investigation-of-the-outcomes-of-pgy-students-cognition-of-and-persistent-behavior-in-learning-through-the-intervention-of-the-flipped-classroom-in-taiwan
#10
Sheng-Der Hsu, Cheng-Jueng Chen, Wei-Kuo Chang, Yih-Jin Hu
The Postgraduate Year (PGY) Program allows doctors-in-training to learn about the diagnosis, treatment and nursing of various common, general diseases. These items form the core curriculum and are mostly learned through caring for patients and clinical teaching. Doctors-in-training are evaluated for their knowledge through written tests or assignments, based on which the effectiveness of their training is also assessed; however, this generally produces a negative learning attitude among them. So we introduced the flipped classroom into PGY training program to change PGY students' learning behavior...
2016: PloS One
https://www.readbyqxmd.com/read/27911766/unfolding-large-scale-online-collaborative-human-dynamics
#11
Yilong Zha, Tao Zhou, Changsong Zhou
Large-scale interacting human activities underlie all social and economic phenomena, but quantitative understanding of regular patterns and mechanism is very challenging and still rare. Self-organized online collaborative activities with a precise record of event timing provide unprecedented opportunity. Our empirical analysis of the history of millions of updates in Wikipedia shows a universal double-power-law distribution of time intervals between consecutive updates of an article. We then propose a generic model to unfold collaborative human activities into three modules: (i) individual behavior characterized by Poissonian initiation of an action, (ii) human interaction captured by a cascading response to previous actions with a power-law waiting time, and (iii) population growth due to the increasing number of interacting individuals...
December 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911678/negative-religious-rhetoric-in-the-lives-of-black-cisgender-queer-emerging-adult-men-a-qualitative-analysis
#12
Ja'Nina J Garrett-Walker, Vanessa M Torres
Given the intersection of racial, religious, and sexual identities for Black queer populations, the current study examines sexuality related religious rhetoric. Twenty Black cisgender queer men were recruited to participate in a qualitative interview. Using thematic analysis, the research team identified four themes: negative religious rhetoric, personal consequences of negative religious rhetoric, social consequences of negative religious rhetoric, and growth from negative religious rhetoric. Participants explained the pervasiveness of negative religious rhetoric within their churches and family structures...
December 2, 2016: Journal of Homosexuality
https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#13
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911304/effects-of-short-term-exercise-interventions-on-behavioral-and-psychological-symptoms-in-patients-with-dementia-a%C3%A2-systematic-review
#14
Tim Fleiner, Stefan Leucht, Hans Foerstl, Wiebren Zijlstra, Peter Haussermann
Observational and interventional studies indicate a direct link between the patients' physical activity and the extent of behavioral and psychological symptoms of dementia (BPSD). At present, there are no evidence-based recommendations for physical exercise in the acute dementia care settings. Hence, this systematic review investigates the effects of short-term exercise trials on BPSD. Trials with a length up to three months investigating the effects of structured exercise interventions on BPSD in acute dementia care settings were included...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911240/an-improvement-program-as-a-way-to-intensify-inter-professional-collaboration-in-the-community-for-people-with-mental-disabilities-a-follow-up
#15
Ann-Christin Janlöv, Ingrid Ainalem, Ann-Christine Andersson, Agneta Berg
The aim of the study was to follow up inter-professional experiences of improvement work one year after a completed CII improvement program aiming at improve health care and social services for people with mental disabilities living in ordinary housing. This study was performed with a qualitative descriptive approach which employed six focus group interviews followed by a thematic analysis. The results revealed four themes; Self-awareness and insights; Behavior and actions in daily practice; Organizational cultures and subcultures; and Organizational practices, using Ken Wilbers' integral theory of four quadrants of realities as a holistic frame in the discussion...
December 2, 2016: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/27911089/don-t-say-that-to-me-opposition-to-targeting-in-weight-centric-intervention-messages
#16
Becky Robinson, Samantha Coveleski
Obesity is a global health issue. Despite well-intentioned efforts by public institutions, traditional health promotion techniques often lead to offending those most in need of weight loss. For example, when Bryn Mawr College targeted overweight students to offer a free fitness and nutrition program, it was met with accusations of fat-shaming, indicating that weight-centric messages operate in a more complex sociocultural system than many public health concerns. To better understand reactions to weight-centric health messages, college-aged women evaluated the Bryn Mawr College e-mail...
December 2, 2016: Health Communication
https://www.readbyqxmd.com/read/27910870/antinociceptive-profile-of-levo-tetrahydropalmatine-in-acute-and-chronic-pain-mice-models-role-of-spinal-sigma-1-receptor
#17
Dong-Wook Kang, Ji-Young Moon, Jae-Gyun Choi, Suk-Yun Kang, Yeonhee Ryu, Jin Bong Park, Jang-Hern Lee, Hyun-Woo Kim
We have recently reported that repeated systemic treatments of extract from Corydalis yanhusuo alleviate neuropathic pain and levo-tetrahydropalmatine (l-THP) is one of active components from Corydalis. We designed this study to investigate antinociceptive effect of l-THP in acute and chronic pain models and related mechanism within the spinal cord. We found that intraperitoneal pretreatment with l-THP significantly inhibited the second phase of formalin-induced pain behavior. In addition, intrathecal as well as intraperitoneal pretreatment with l-THP reduced the mechanical allodynia (MA) induced by direct activation of sigma-1 receptor (Sig-1)...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910868/relationship-between-nanotopographical-alignment-and-stem-cell-fate-with-live-imaging-and-shape-analysis
#18
Peter Newman, Jorge Luis Galenano-Niño, Pamela Graney, Joselito M Razal, Andrew I Minett, João Ribas, Raquel Ovalle-Robles, Maté Biro, Hala Zreiqat
The topography of a biomaterial regulates cellular interactions and determine stem cell fate. A complete understanding of how topographical properties affect cell behavior will allow the rational design of material surfaces that elicit specified biological functions once placed in the body. To this end, we fabricate substrates with aligned or randomly organized fibrous nanostructured topographies. Culturing adipose-derived stem cells (ASCs), we explore the dynamic relationship between the alignment of topography, cell shape and cell differentiation to osteogenic and myogenic lineages...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910556/thermal-analysis-of-the-in-vessel-components-of-the-iter-plasma-position-reflectometry
#19
P B Quental, H Policarpo, R Luís, P Varela
The ITER plasma position reflectometry system measures the edge electron density profile of the plasma, providing real-time supplementary contribution to the magnetic measurements of the plasma-wall distance. Some of the system components will be in direct sight of the plasma and therefore subject to plasma and stray radiation, which may cause excessive temperatures and stresses. In this work, thermal finite element analysis of the antenna and adjacent waveguides is conducted with ANSYS V17 (ANSYS® Academic Research, Release 17...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910503/characterization-of-x-ray-framing-cameras-for-the-national-ignition-facility-using-single-photon-pulse-height-analysis
#20
J P Holder, L R Benedetti, D K Bradley
Single hit pulse height analysis is applied to National Ignition Facility x-ray framing cameras to quantify gain and gain variation in a single micro-channel plate-based instrument. This method allows the separation of gain from detectability in these photon-detecting devices. While pulse heights measured by standard-DC calibration methods follow the expected exponential distribution at the limit of a compound-Poisson process, gain-gated pulse heights follow a more complex distribution that may be approximated as a weighted sum of a few exponentials...
November 2016: Review of Scientific Instruments
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