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https://www.readbyqxmd.com/read/28101727/reliable-prediction-of-adsorption-isotherms-via-genetic-algorithm-molecular-simulation
#1
L LoftiKatooli, A Shahsavand
Conventional molecular simulation techniques such as grand canonical Monte Carlo (GCMC) strictly rely on purely random search inside the simulation box for predicting the adsorption isotherms. This blind search is usually extremely time demanding for providing a faithful approximation of the real isotherm and in some cases may lead to non-optimal solutions. A novel approach is presented in this article which does not use any of the classical steps of the standard GCMC method, such as displacement, insertation, and removal...
January 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28100241/personalized-life-expectancy-and-treatment-benefit-index-of-antiretroviral-therapy
#2
Yanni Xiao, Xiaodan Sun, Sanyi Tang, Yicang Zhou, Zhihang Peng, Jianhong Wu, Ning Wang
BACKGROUND: The progression of Human Immunodeficiency Virus (HIV) within host includes typical stages and the Antiretroviral Therapy (ART) is shown to be effective in slowing down this progression. There are great challenges in describing the entire HIV disease progression and evaluating comprehensive effects of ART on life expectancy for HIV infected individuals on ART. METHODS: We develop a novel summative treatment benefit index (TBI), based on an HIV viral dynamics model and linking the infection and viral production rates to the Weibull function...
January 18, 2017: Theoretical Biology & Medical Modelling
https://www.readbyqxmd.com/read/28097178/antecedents-of-coping-with-the-disease-in-patients-with-multiple-sclerosis-a-qualitative-content-analysis
#3
Ali Dehghani, Nahid Dehghan Nayeri, Abbas Ebadi
BACKGROUND: Due to many physical and mental disorders that occur in multiple sclerosis patients, identifying the factors affecting coping based on the experiences of patients using qualitative study is essential to improve their quality of life. This study was conducted to explore the antecedents of coping with the disease in patients with multiple sclerosis. METHODS: This is a qualitative study conducted on 11 patients with multiple sclerosis in 2015 in Tehran, Iran...
January 2017: International Journal of Community Based Nursing and Midwifery
https://www.readbyqxmd.com/read/28095613/xenopus-egg-extract-to-study-regulation-of-genome-wide-and-locus-specific-dna-replication
#4
REVIEW
Erica Raspelli, Lucia Falbo, Vincenzo Costanzo
Faithful DNA replication, coupled with accurate repair of DNA damage, is essential to maintain genome stability and relies on different DNA metabolism genes. Many of these genes are involved in the assembly of replication origins, in the coordination of DNA repair to protect replication forks progression in the presence of DNA damage and in the replication of repetitive chromatin regions. Some DNA metabolism genes are essential in higher eukaryotes, suggesting the existence of specialized mechanisms of repair and replication in organisms with complex genomes...
January 17, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28093885/claims-to-the-benefits-of-clinical-supervision-a-critique-of-the-policy-development-process-and-outcomes-in-new-south-wales-australia
#5
Edward White
The historical development of clinical supervision has been variously interpreted in the international literature. Creditable evidence has accumulated, particularly over the past two decades, to show that clinical supervision has a positive demonstrable effect on supervisees. However, comparatively little research evidence has entered the public domain on any effect that clinical supervision might have on other nominated outcomes. In Australia, developments in clinical supervision were recently prompted by initiatives at national and state levels...
February 2017: International Journal of Mental Health Nursing
https://www.readbyqxmd.com/read/28088499/initial-uncertainty-impacts-statistical-learning-in-sound-sequence-processing
#6
Juanita Todd, Alexander Provost, Lisa Whitson, Daniel Mullens
This paper features two studies confirming a lasting impact of first learning on how subsequent experience is weighted in early relevance-filtering processes. In both studies participants were exposed to sequences of sound that contained a regular pattern on two different timescales. Regular patterning in sound is readily detected by the auditory system and used to form "prediction models" that define the most likely properties of sound to be encountered in a given context. The presence and strength of these prediction models is inferred from changes in automatically elicited components of auditory evoked potentials...
January 11, 2017: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/28087492/multi-antibiotic-resistant-and-putative-virulence-gene-signatures-in-enterococcus-species-isolated-from-pig-farms-environment
#7
Abeni Beshiru, Isoken H Igbinosa, Faith I Omeje, Abraham G Ogofure, Martin M Eyong, Etinosa O Igbinosa
The continuous misuse of antimicrobials in food animals both orally and subcutaneously as therapeutic and prophylactic agents to bacterial infections could be detrimental and contribute to the dissemination of resistant clones in livestock production. The present study was carried out to determine the antibiogram and virulence gene characteristics of Enterococcus species from pig farms. A total of 300 faecal samples were obtained from two pig farms in Benin City between February and July, 2016. Standard culture-based and polymerase chain reaction (PCR) assay were adopted in the detection and characterization of the Enterococcus species...
January 10, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28081120/epidemiology-of-chikungunya-virus-outbreaks-in-guadeloupe-and-martinique-2014-an-observational-study-in-volunteer-blood-donors
#8
Pierre Gallian, Isabelle Leparc-Goffart, Pascale Richard, Françoise Maire, Olivier Flusin, Rachid Djoudi, Jacques Chiaroni, Remi Charrel, Pierre Tiberghien, Xavier de Lamballerie
BACKGROUND: During Dec-2013, a chikungunya virus (CHIKV) outbreak was first detected in the French-West Indies. Subsequently, the virus dispersed to other Caribbean islands, continental America and many islands in the Pacific Ocean. Previous estimates of the attack rate were based on declaration of clinically suspected cases. METHODS/PRINCIPAL FINDINGS: Individual testing for CHIKV RNA of all (n = 16,386) blood donations between Feb-24th 2014 and Jan-31st 2015 identified 0·36% and 0·42% of positives in Guadeloupe and Martinique, respectively...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28070225/how-does-genetic-risk-information-for-lynch-syndrome-translate-to-risk-management-behaviours
#9
Emma Steel, Andrew Robbins, Mark Jenkins, Louisa Flander, Clara Gaff, Louise Keogh
BACKGROUND: There is limited research on why some individuals who have undergone predictive genetic testing for Lynch syndrome do not adhere to screening recommendations. This study aimed to explore qualitatively how Lynch syndrome non-carriers and carriers translate genetic risk information and advice to decisions about risk managment behaviours in the Australian healthcare system. METHODS: Participants of the Australasian Colorectal Cancer Family Registry who had undergone predictive genetic testing for Lynch syndrome were interviewed on their risk management behaviours...
2017: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/28069006/methods-and-design-of-a-10-week-multi-component-family-meals-intervention-a-two-group-quasi-experimental-effectiveness-trial
#10
Catherine Rogers, Sarah E Anderson, Jamie S Dollahite, Tisa F Hill, Chris Holloman, Carla K Miller, Keeley J Pratt, Carolyn Gunther
BACKGROUND: Given the ongoing childhood obesity public health crisis and potential protective effect of family meals, there is need for additional family meals research, specifically experimental studies with expanded health outcomes that focus on the at-risk populations in highest need of intervention. Future research, specifically intervention work, would also benefit from an expansion of the target age range to include younger children, who are laying the foundation of their eating patterns and capable of participating in family meal preparations...
January 9, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28066841/community-based-participatory-research-studies-on-hiv-aids-prevention-2005-2014
#11
Steven S Coughlin
The recent literature on community-based participatory research (CBPR) approaches to preventing HIV infection in diverse communities was systematically reviewed as part of the planning process for a new study. Published HIV prevention studies that employed CBPR methods were identified for the period January 1, 2005 to April 30, 2014 using PubMed databases and MeSH term and keyword searches. A total of 44 studies on CBPR and HIV or AIDS prevention were identified, of which 3 focused on adolescents, 33 on adults, and 8 on both adolescents and adults...
April 2016: Jacobs Journal of Community Medicine
https://www.readbyqxmd.com/read/28062265/community-based-healthy-lifestyle-interventions
#12
REVIEW
Kathy Berra, Barry Franklin, Catriona Jennings
In an environment in which most people have lifestyles that increase risk for initial or recurrent cardiovascular disease (CVD) events, community-based healthy lifestyle initiatives are highly effective in providing programs, education and support to reduce associated CVD risk factors and improve outcomes. Pioneering programs, such as the Stanford Three Community and Five Cities studies, and the North Karelia project in Finland, served as prototypes for current initiatives. These include partnerships with national organizations (e...
January 3, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28060999/statistical-image-domain-multi-material-decomposition-for-dual-energy-ct
#13
Yi Xue, Ruoshui Ruan, Xiuhua Hu, Yu Kuang, Jing Wang, Yong Long, Tianye Niu
PURPOSE: Dual-energy CT (DECT) enhances tissue characterization because of its basis material decomposition capability. In addition to conventional two-material decomposition from DECT measurements, multi-material decomposition (MMD) is required in many clinical applications. To solve the ill-posed problem of reconstructing multiple-material images from dual-energy measurements, additional constraints are incorporated into the formulation, including volume and mass conservation and the assumptions that at most three materials in each pixel and various material types among pixels...
January 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28060890/developing-and-testing-a-bayesian-analysis-of-fluorescence-lifetime-measurements
#14
Bryan Kaye, Peter J Foster, Tae Yeon Yoo, Daniel J Needleman
FRET measurements can provide dynamic spatial information on length scales smaller than the diffraction limit of light. Several methods exist to measure FRET between fluorophores, including Fluorescence Lifetime Imaging Microscopy (FLIM), which relies on the reduction of fluorescence lifetime when a fluorophore is undergoing FRET. FLIM measurements take the form of histograms of photon arrival times, containing contributions from a mixed population of fluorophores both undergoing and not undergoing FRET, with the measured distribution being a mixture of exponentials of different lifetimes...
2017: PloS One
https://www.readbyqxmd.com/read/28059149/volumetric-light-field-encryption-at-the-microscopic-scale
#15
Haoyu Li, Changliang Guo, Inbarasan Muniraj, Bryce C Schroeder, John T Sheridan, Shu Jia
We report a light-field based method that allows the optical encryption of three-dimensional (3D) volumetric information at the microscopic scale in a single 2D light-field image. The system consists of a microlens array and an array of random phase/amplitude masks. The method utilizes a wave optics model to account for the dominant diffraction effect at this new scale, and the system point-spread function (PSF) serves as the key for encryption and decryption. We successfully developed and demonstrated a deconvolution algorithm to retrieve both spatially multiplexed discrete data and continuous volumetric data from 2D light-field images...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28054202/best-one-hundred-papers-of-international-orthopaedics-a-bibliometric-analysis
#16
Andreas F Mavrogenis, Panayiotis D Megaloikonomos, Georgios N Panagopoulos, Cyril Mauffrey, Andrew Quaile, Marius M Scarlat
INTRODUCTION: International Orthopaedics was founded in 1977. Within the 40 volumes and 247 issues since its launch, 5462 scientific articles have been published. This article identifies, analyses and categorises the best cited articles published by the journal to date. METHODS: We searched Elsevier Scopus database for citations of all papers published in International Orthopaedics since its foundation. Source title was selected, and the journal's title was introduced in the search engine...
January 4, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28053899/unconventional-medical-practices-among-ghanaian-students-a-university-based-survey
#17
Razak Mohammed Gyasi, Williams Agyemang-Duah, Charlotte Monica Mensah, Francis Arthur, Roselyn Torkornoo, Padmore Adusei Amoah
Research on unconventional medical practices among students has proliferated lately in the global space, hitherto, little is known explicitly in Ghana. This paper teases out insights for recent utilisation patterns of traditional medical therapies at Kwame Nkrumah University of Science and Technology (KNUST), Ghana. A sample of 754, randomly selected undergraduates were involved in a retrospective cross-sectional survey. Data were analysed using multivariate logistic regression and Pearson's χ(2) test with p < 0...
January 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28052931/pastoral-perceptions-of-the-learning-and-developing-individual-exercise-skills-l-a-d-i-e-s-intervention-a-qualitative-study
#18
Chandra R Story, Tyra T Gross, Idethia S Harvey, Melicia C Whitt-Glover
African-American women experience higher rates of obesity compared to other racial/ethnic groups. High levels of reported church attendance among African-Americans have led to the proliferation of faith-based health programs. Pastors can influence success for faith-based programs. The purpose of this study was to assess pastors' perceptions of the L.A.D.I.E.S. intervention, designed to increase physical activity levels in sedentary African-American women. For the L.A.D.I.E.S. intervention, 31 churches (n = 418 women) were randomized at the church level to a faith-based, non-faith-based or self-guided program...
January 3, 2017: Health Education Research
https://www.readbyqxmd.com/read/28052256/a-precise-genome-editing-method-reveals-insights-into-the-activity-of-eukaryotic-promoters
#19
Gregory L Elison, Ruijie Song, Murat Acar
Despite the availability of whole-genome sequences for almost all model organisms, making faithful predictions of gene expression levels based solely on the corresponding promoter sequences remains a challenge. Plasmid-based approaches and methods involving selection markers are not ideal due to copy-number fluctuations and their disruptive nature. Here, we present a genome editing method using the CRISPR/Cas9 complex and elucidate insights into the activity of canonical promoters in live yeast cells. The method involves the introduction of a novel cut site into a specific genomic location, followed by the integration of an edited sequence into the same location in a scarless manner...
January 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28048863/su-f-j-105-towards-a-novel-treatment-planning-pipeline-delivering-pareto-optimal-plans-while-enabling-inter-and-intrafraction-plan-adaptation
#20
C Kontaxis, S Breedveld, G Bol, A Sharfo, B Heijmen, J Lagendijk, B Raaymakers
PURPOSE: To develop a new IMRT treatment planning methodology suitable for the new generation of MR-linear accelerator machines. The pipeline is able to deliver Pareto-optimal plans and can be utilized for conventional treatments as well as for inter- and intrafraction plan adaptation based on real-time MR-data. METHODS: A Pareto-optimal plan is generated using the automated multicriterial optimization approach Erasmus-iCycle. The resulting dose distribution is used as input to the second part of the pipeline, an iterative process which generates deliverable segments that target the latest anatomical state and gradually converges to the prescribed dose...
June 2016: Medical Physics
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