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https://www.readbyqxmd.com/read/28454022/quantitative-analysis-of-adsorptive-interactions-of-ionic-and-neutral-pharmaceuticals-and-other-chemicals-with-the-surface-of-escherichia-coli-cells-in-aquatic-environment
#1
Chul-Woong Cho, Jeong-Soo Park, Yufeng Zhao, Yeoung-Sang Yun
Since Escherichia coli is ubiquitous in nature and has been applied to biological, chemical, and environmental processes, molecular-level understanding of adsorptive interactions between chemicals and the bacterial surface is of great importance. To characterise the adsorption properties of the surface of E. coli cells in aquatic environment, the binding affinities (log Kd) of calibration compounds were experimentally measured, and then based on the values and numerically well-defined molecular interaction forces, i...
April 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28453972/exposure-to-ambient-pm2-5-associated-with-overall-and-domain-specific-disability-among-adults-in-six-low-and-middle-income-countries
#2
Hualiang Lin, Yanfei Guo, Yang Zheng, Xing Zhao, Zheng Cao, Steven E Rigdon, Hong Xian, Xing Li, Tao Liu, Jianpeng Xiao, Weilin Zeng, Nancy L Weaver, ZhengminMin Qian, Wenjun Ma, Fan Wu
BACKGROUND: Exposure to particulate matter pollution is associated with various cardiopulmonary diseases, which are closely related with disability. The direct relationship between air pollution and disability, however, has not been fully explored. METHODS: We used data from 45,625 participants in the Study on global AGEing and adult health in six low- and middle-income countries. The 12-item version of the World Health Organization Disability Assessment Schedule (WHODAS 2...
April 25, 2017: Environment International
https://www.readbyqxmd.com/read/28453944/dietary-intake-and-cardiometabolic-biomarkers-in-relation-to-insulin-resistance-and-hypertension-in-a-middle-aged-and-elderly-population-in-beijing-china
#3
Jia Wang, Zhongxin Hong, Li Wu, Bingjie Ding, Yanxia Bi, Zhongyi Gu, Wei Li
OBJECTIVE: To investigate the relationships of dietary intake and cardiometabolic biomarkers with insulin resistance and hypertension in rural middle-aged and elderly people in China. METHODS: One hundred and eight middle-aged and elderly adults were recruited in Zhangfang village in May 2014. We measured blood pressure, anthropometric parameters, and biochemical indexes, including high-sensitivity C-reactive protein (hsCRP), soluble intercellular adhesion molecule-1 (sICAM-1), glucose, insulin, and blood lipids...
April 28, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28453820/reliability-of-clinical-impact-grading-by-healthcare-professionals-of-common-prescribing-error-and-optimisation-cases-in-critical-care-patients
#4
Richard S Bourne, Rob Shulman, Mark Tomlin, Mark Borthwick, Will Berry, Gary H Mills
Objective: To identify between and within profession-rater reliability of clinical impact grading for common critical care prescribing error and optimisation cases. To identify representative clinical impact grades for each individual case. Design: Electronic questionnaire. Setting: 5 UK NHS Trusts. Participants: 30 Critical care healthcare professionals (doctors, pharmacists and nurses). Intervention: Participants graded severity of clinical impact (5-point categorical scale) of 50 error and 55 optimisation cases...
April 1, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28453671/wright-fisher-exact-solver-wfes-scalable-analysis-of-population-genetic-models-without-simulation-or-diffusion-theory
#5
Ivan Krukov, Bianca de Sanctis, A P Jason de Koning
Motivation: The simplifying assumptions that are used widely in theoretical population genetics may not always be appropriate for empirical population genetics. General computational approaches that do not require the assumptions of classical theory are therefore quite desirable. One such general approach is provided by the theory of absorbing Markov chains, which can be used to obtain exact results by directly analyzing population genetic Markov models, such as the classic bi-allelic Wright-Fisher model...
May 1, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28453667/linearity-of-network-proximity-measures-implications-for-set-based-queries-and-significance-testing
#6
Sean Maxwell, Mark R Chance, Mehmet Koyutürk
Motivation: In recent years, various network proximity measures have been proposed to facilitate the use of biomolecular interaction data in a broad range of applications. These applications include functional annotation, disease gene prioritization, comparative analysis of biological systems and prediction of new interactions. In such applications, a major task is the scoring or ranking of the nodes in the network in terms of their proximity to a given set of 'seed' nodes (e.g. a group of proteins that are identified to be associated with a disease, or are deferentially expressed in a certain condition)...
May 1, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28453641/phenotypic-and-genetic-analysis-of-the-leopard-complex-spotting-in-noriker-horses
#7
Thomas Druml, Gertrud Grilz-Seger, Markus Neuditschko, Barbara Neuhauser, Gottfried Brem
Genetic analyses of coat colors are frequently restricted to subjectively categorized phenotype information. The aim of this study was to develop a method to numerically quantify the variability of leopard complex spotting phenotypes introducing tools from image analysis. Generalized Procrustes Analysis eliminates systematic errors due to imaging process. The binarization of normalised images and the application of Principal Component Analysis on the derived pixel matrices, transform pixel information into numerical data space...
April 27, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28453631/prenatal-cerebellar-growth-trajectories-and-the-impact-of-periconceptional-maternal-and-fetal-factors
#8
I V Koning, J Dudink, I A L Groenenberg, S P Willemsen, I K M Reiss, R P M Steegers-Theunissen
STUDY QUESTION: CAN WE assess human prenatal cerebellar growth from the first until the third trimester of pregnancy and create growth trajectories to investigate associations with periconceptional maternal and fetal characteristics? SUMMARY ANSWER: Prenatal growth trajectories of the human cerebellum between 9 and 32 weeks gestational age (GA) were created using three-dimensional ultrasound (3D-US) and show negative associations with pre-pregnancy and early first trimester BMI calculated from self-reported and standardized measured weight and height, respectively...
April 27, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28453564/the-influence-of-climatic-variation-and-density-on-the-survival-of-an-insular-passerine-zosterops-lateralis
#9
Erik M Sandvig, Tim Coulson, Jiro Kikkawa, Sonya M Clegg
Understanding the influence of environmental factors on population dynamics is fundamental to many areas in biology. Survival is a key factor of population biology, as it is thought to be the predominant driver of growth in long-lived passerines, which can be influenced by both biotic and abiotic environmental conditions. We used mark-recapture methods and generalized linear mixed models to test the influence of density and climatic variation, measured at a regional and local scale (Southern Oscillation Index [SOI] and rainfall, respectively), on seasonal variation in survival rates of an insular population of Silvereyes (Zosterops lateralis chlorocephalus), during a 15-year study period, off the east coast of Australia...
2017: PloS One
https://www.readbyqxmd.com/read/28453528/guidance-in-author-instructions-of-hematology-and-oncology-journals-a-cross-sectional-and-longitudinal-study
#10
Ingrid Toews, Nadine Binder, Robert F Wolff, Guenes Toprak, Erik von Elm, Joerg J Meerpohl
BACKGROUND: The debate about the value of biomedical publications led to recommendations for improving reporting quality. It is unclear to what extent these recommendations have been endorsed by journals. We analyzed whether specific recommendations were included in author instructions, which journal characteristics were associated with their endorsement, how endorsement of the domains changed and whether endorsement was associated with change of impact factor between 2010 and 2015. METHODS: We considered two study samples consisting of "Hematology" and "Oncology" journals of the Journal Citation Report 2008 and 2014, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28453398/assessment-of-passive-drag-in-swimming-by-numerical-simulation-and-analytical-procedure
#11
Tiago M Barbosa, Rui Ramos, António J Silva, Daniel A Marinho
The aim was to compare the passive drag-gliding underwater by a numerical simulation and an analytical procedure. An Olympic swimmer was scanned by computer tomography and modelled gliding at a 0.75-m depth in the streamlined position. Steady-state computer fluid dynamics (CFD) analyses were performed on Fluent. A set of analytical procedures was selected concurrently. Friction drag (Df), pressure drag (Dpr), total passive drag force (Df+pr) and drag coefficient (CD) were computed between 1.3 and 2.5 m · s(-1) by both techniques...
April 28, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28453279/monte-carlo-simulations-of-the-uptake-of-chiral-compounds-on-solid-surfaces
#12
Stavros Karakalos, Francisco Zaera
A Monte Carlo algorithm was developed and used to describe and explain previous experimental results associated with the kinetics of the uptake of chiral molecules on solid surfaces. The specific system simulated in this study is the adsorption of propylene oxide (PO) on Pt(111) surfaces. The surface was represented by a square lattice, and the time evolution of the adsorption, starting from a clean surface, was simulated via a number of sequential events chosen using a stochastic approach based on the so-called Master equation and derived from the formalism advanced by Gillespie...
April 28, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28449386/influence-of-a-two-to-six-year-physical-education-intervention-on-scholastic-performance-the-champs-study-dk
#13
Anna Bugge, Sören Möller, Jakob Tarp, Charles H Hillman, Rodrigo Antunes Lima, Anne Kaer Gejl, Heidi Klakk, Niels Wedderkopp
AIM: To investigate the influence of a school-based intervention with a tripling of physical education (PE) lessons from two (90 min) to six lessons per week (270 min) on scholastic performance. METHODS: This study is part of the CHAMPS study-DK, a quasi-experimental study that began in 2008. The intervention group consisted of six schools and the control group consisted of four matched schools (mean age at baseline = 8.4 years, kindergarten class-4(th) grade). Academic performance was extracted from the national test system from 2010- 2014 (Math and Danish were measured at 3(rd) and 6(th) , and 2(nd) , 4(th) and 6(th) grades, respectively)...
April 27, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28449185/effect-of-oil-and-shortening-in-rice-bread-quality-relationship-between-dough-rheology-and-quality-characteristics
#14
Camino M Mancebo, Mario M Martínez, Cristina Merino, Esther de la Hera, Manuel Gómez
One of the main problems with gluten-free breads is their texture and their rapid staling. Fats are widely used for the improvement of texture and other quality parameters in gluten-free breads. The effect of oil and shortening in rice-breads quality and its correlation with dough rheology has been analysed. The inclusion of oil increased the specific volume of the breads and reduced their hardness, particularly with lower levels of hydration, whereas shortening did not modify specific volume or reduced it when hydration levels were higher...
April 27, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28449059/marijuana-use-impacts-midlife-cardiovascular-events-in-hiv-infected-men
#15
David R Lorenz, Anupriya Dutta, Shibani S Mukerji, Alex Holman, Hajime Uno, Dana Gabuzda
Background.: Marijuana use is prevalent among persons infected with HIV, but its long-term effects on HIV disease progression and comorbidities are unknown. Methods.: A prospective study of 558 HIV-infected men enrolled in the Multicenter AIDS Cohort Study between 1990-2010: 182 HIV seroconverters and 376 with viral suppression on combination antiretroviral therapy (ART). Associations between heavy marijuana use and HIV disease markers or white blood cell (WBC) count were examined using mixed-effects and linear regression models...
April 25, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28448956/concentration-dependent-switch-in-the-kinetic-pathway-of-lysozyme-fibrillation-spectroscopic-and-microscopic-analysis
#16
E Kiran Kumar, Deepak Kumar Prasad, N Prakash Prabhu
Formation of amyloid fibrils is found to be a general tendency of many proteins. Investigating the kinetic mechanisms and structural features of the intermediates and the final fibrillar state is essential to understand their role in amyloid diseases. Lysozyme, a notable model protein for amyloidogenic studies, readily formed fibrils in vitro at neutral pH in the presence of urea. It, however, showed two different kinetic pathways under varying urea concentrations when probed with thioflavin T (ThT) fluorescence...
April 17, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28448922/affine-and-non-affine-deformations-quantified-in-cytoskeletal-networks-through-three-dimensional-form-finding-model
#17
Yifan Wang, Jinghai Gong, Denis Wirtz, Benjamin W Schafer
Actin filaments and cross-linkers are main components of cytoskeletal networks in eukaryotic cells, and they support bending moments and axial forces respectively. A three-dimensional form-finding model is proposed in this work to investigate affine and non-affine deformations in cytoskeletal networks. In recent studies, modeling of cytoskeletal networks turns out to be a key piece in the cell mechanics puzzle. We used form-finding analysis to compute and analyze cytoskeletal models. A three-dimensional model is much more flexible and contains more elements than a two-dimensional model, and non-linear finite element analysis is difficult to converge...
April 20, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28448915/ozone-exposure-affects-tree-defoliation-in-a-continental-climate
#18
Alessandra De Marco, Marcello Vitale, Ionel Popa, Alessandro Anav, Ovidiu Badea, Diana Silaghi, Stefan Leca, Augusto Screpanti, Elena Paoletti
Ground-level ozone (O3) affects trees through visible leaf injury, accelerating leaf senescence, declining foliar chlorophyll content, photosynthetic activity, growth, carbon sequestration, predisposing to pests attack and a variety of other physiological effects. Tree crown defoliation is one of the most important parameters that is representative of forest health and vitality. Effects of air pollution on forests have been investigated through manipulative experiments that are not representative of the real environmental conditions observed in the field...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28448905/drug-use-generations-and-patterns-of-injection-drug-use-birth-cohort-differences-among-people-who-inject-drugs-in-los-angeles-and-san-francisco-california
#19
Ricky N Bluthenthal, Lynn Wenger, Daniel Chu, Philippe Bourgois, Alex H Kral
OBJECTIVES: A robust literature documents generational trends in drug use. We examined the implications of changing national drug use patterns on drug injection histories of diverse people who inject drugs (PWID). METHODS: Drug use histories were collected from 776 active PWID in 2011-13. Using descriptive statistics, we examine drug use initiation by year and birth cohort (BC) differences in drug first injected. A multivariate linear regression model of time to injection initiation ([TTII] (year of first injection minus year of first illicit drug use) was developed to explore BC differences...
April 19, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28448841/why-computer-models-help-to-understand-developmental-processes
#20
E Saskia Kunnen
It is argued that simulating psychological processes by means of computer models is a valuable technique to increase our understanding of adolescent developmental processes. Modelling offers possibilities to test hypotheses that cannot be reached by designing empirical studies only and it allows us to investigate adolescent development as the complex and non-linear process that it is.
April 24, 2017: Journal of Adolescence
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