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https://www.readbyqxmd.com/read/28934769/assessment-and-modelling-of-general-practice-and-community-setting-capacity-for-medical-trainees-in-northern-new-zealand
#1
Felicity Goodyear-Smith, Abbas Al-Murrani
AIMS: To estimate the capacity of general practice to accommodate undergraduate and postgraduate medical trainees, and model efficient ways to utilise identified capacity and increase capacity. METHODS: We conducted an online survey, with phone follow-up to non-responders, of all general practices in the northern half of New Zealand. The main outcome measures were current placements and future intentions for taking medical trainees; factors influencing decisions and possible incentives to take trainees...
September 22, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28933674/critical-healthcare-management-studies-green-shoots
#2
Martin Kitchener, Aoife M McDermott, Simon Cooper
Purpose While critical approaches have enriched research in proximate fields, their impact has been less marked in studies of healthcare management. In response, the 2016 Organizational Behaviour in Health Care Conference hosted its first-ever session dedicated to the emergent field of critical healthcare management studies (CHMSs). The purpose of this paper is to present five papers selected from that conference. Design/methodology/approach In this introductory paper, the authors frame the contributions as "green shoots" in a field of CHMS which contains four main furrows of activity: questioning the taken-for-granted; moving beyond instrumentalism; reflexivity and meanings in research; and challenging structures of domination (Kitchener and Thomas, 2016)...
August 21, 2017: Journal of Health Organization and Management
https://www.readbyqxmd.com/read/28931719/innate-colour-preference-individual-learning-and-memory-retention-in-the-ant-camponotus-blandus
#3
Ayse Yilmaz, Adrian G Dyer, Wolfgang Rössler, Johannes Spaethe
Ants are a well-characterized insect model for the study of visual learning and orientation, but the extent to which colour vision is involved in these tasks remains unknown. We investigated the colour preference, learning and memory retention of Camponotus blandus foragers under controlled laboratory conditions. Our results show that C. blandus foragers exhibit a strong innate preference for ultraviolet (UV, 365 nm) over blue (450 nm) and green (528 nm) wavelengths. The ants can learn to discriminate 365 nm from either 528 nm or 450 nm, independent of intensity changes...
September 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28927448/barriers-and-facilitators-to-implementing-addiction-medicine-fellowships-a-qualitative-study-with-fellows-medical-students-residents-and-preceptors
#4
J Klimas, W Small, K Ahamad, W Cullen, A Mead, L Rieb, E Wood, R McNeil
BACKGROUND: Although progress in science has driven advances in addiction medicine, this subject has not been adequately taught to medical trainees and physicians. As a result, there has been poor integration of evidence-based practices in addiction medicine into physician training which has impeded addiction treatment and care. Recently, a number of training initiatives have emerged internationally, including the addiction medicine fellowships in Vancouver, Canada. This study was undertaken to examine barriers and facilitators of implementing addiction medicine fellowships...
September 20, 2017: Addiction Science & Clinical Practice
https://www.readbyqxmd.com/read/28923313/functional-brain-networks-for-learning-predictive-statistics
#5
Joseph Giorgio, Vasilis M Karlaftis, Rui Wang, Yuan Shen, Peter Tino, Andrew Welchman, Zoe Kourtzi
Making predictions about future events relies on interpreting streams of information that may initially appear incomprehensible. This skill relies on extracting regular patterns in space and time by mere exposure to the environment (i.e., without explicit feedback). Yet, we know little about the functional brain networks that mediate this type of statistical learning. Here, we test whether changes in the processing and connectivity of functional brain networks due to training relate to our ability to learn temporal regularities...
August 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28923138/orientation-preferences-and-motion-sickness-induced-in-a-virtual-reality-environment
#6
Wei Chen, Jian-Gang Chao, Yan Zhang, Jin-Kun Wang, Xue-Wen Chen, Cheng Tan
BACKGROUND: Astronauts' orientation preferences tend to correlate with their susceptibility to space motion sickness (SMS). Orientation preferences appear universally, since variable sensory cue priorities are used between individuals. However, SMS susceptibility changes after proper training, while orientation preferences seem to be intrinsic proclivities. The present study was conducted to investigate whether orientation preferences change if susceptibility is reduced after repeated exposure to a virtual reality (VR) stimulus environment that induces SMS...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28922974/the-achilles-heel-of-prevention-to-mother-to-child-transmission-of-hiv-protocol-implementation-uptake-and-sustainability
#7
Violeta J Rodriguez, Richard P LaCabe, C Kyle Privette, K Marie Douglass, Karl Peltzer, Gladys Matseke, Audrey Mathebula, Shandir Ramlagan, Sibusiso Sifunda, Guillermo Willy Prado, Viviana Horigian, Stephen M Weiss, Deborah L Jones
The Joint United Nations Programme on HIV and AIDS proposed to reduce the vertical transmission of HIV from ∼72,200 to ∼8300 newly infected children by 2015 in South Africa (SA). However, cultural, infrastructural, and socio-economic barriers hinder the implementation of the prevention of mother-to-child transmission (PMTCT) protocol, and research on potential solutions to address these barriers in rural areas is particularly limited. This study sought to identify challenges and solutions to the implementation, uptake, and sustainability of the PMTCT protocol in rural SA...
December 2017: SAHARA J: Journal of Social Aspects of HIV/AIDS Research Alliance
https://www.readbyqxmd.com/read/28922126/functional-contour-following-via-haptic-perception-and-reinforcement-learning
#8
Randall B Hellman, Cem Tekin, Mihaela van der Schaar, Veronica J Santos
Many tasks involve the fine manipulation of objects despite limited visual feedback. In such scenarios, tactile and proprioceptive feedback can be leveraged for task completion. We present an approach for real-time haptic perception and decision-making for a haptics-driven, functional contour-following task: the closure of a ziplock bag. This task is challenging for robots because the bag is deformable, transparent, and visually occluded by artificial fingertip sensors that are also compliant. A deep neural net classifier was trained to estimate the state of a zipper within a robot's pinch grasp...
September 18, 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28922101/this-is-who-we-are-building-community-for-hiv-prevention-with-young-gay-and-bisexual-men-in-beirut-lebanon
#9
Matt G Mutchler, Bryce Way McDavitt, Tu N Tran, Cynthia El Khoury, Ellie Ballan, Johnny Tohme, Susan M Kegeles, Glenn Wagner
Young gay men in Beirut are at significantly elevated risk of HIV infection compared with the general Lebanese population. Despite nascent HIV prevention efforts in the region, there is a need for effective community-level HIV prevention interventions tailored for young gay men. This qualitative study examined internal dynamics within Beirut's gay community as a basis for developing community-level interventions. Peer ethnographers were trained to collect field notes on conversations between young gay men in public spaces in Beirut, and conducted follow-up focus groups with young gay men...
September 18, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28920911/efficient-online-learning-algorithms-based-on-lstm-neural-networks
#10
Tolga Ergen, Suleyman Serdar Kozat
We investigate online nonlinear regression and introduce novel regression structures based on the long short term memory (LSTM) networks. For the introduced structures, we also provide highly efficient and effective online training methods. To train these novel LSTM-based structures, we put the underlying architecture in a state space form and introduce highly efficient and effective particle filtering (PF)-based updates. We also provide stochastic gradient descent and extended Kalman filter-based updates. Our PF-based training method guarantees convergence to the optimal parameter estimation in the mean square error sense provided that we have a sufficient number of particles and satisfy certain technical conditions...
September 13, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28919854/pranas-a-new-platform-for-retinal-analysis-and-simulation
#11
Bruno Cessac, Pierre Kornprobst, Selim Kraria, Hassan Nasser, Daniela Pamplona, Geoffrey Portelli, Thierry Viéville
The retina encodes visual scenes by trains of action potentials that are sent to the brain via the optic nerve. In this paper, we describe a new free access user-end software allowing to better understand this coding. It is called PRANAS (https://pranas.inria.fr), standing for Platform for Retinal ANalysis And Simulation. PRANAS targets neuroscientists and modelers by providing a unique set of retina-related tools. PRANAS integrates a retina simulator allowing large scale simulations while keeping a strong biological plausibility and a toolbox for the analysis of spike train population statistics...
2017: Frontiers in Neuroinformatics
https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#12
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28918607/modeling-the-ph-and-temperature-dependence-of-aqueousphase-hydroxyl-radical-reaction-rate-constants-of-organic-micropollutants-using-qspr-approach
#13
Shikha Gupta, Nikita Basant
Designing of advanced oxidation process (AOP) requires knowledge of the aqueous phase hydroxyl radical ((●)OH) reactions rate constants (k OH), which are strictly dependent upon the pH and temperature of the medium. In this study, pH- and temperature-dependent quantitative structure-property relationship (QSPR) models based on the decision tree boost (DTB) approach were developed for the prediction of k OH of diverse organic contaminants following the OECD guidelines. Experimental datasets (n = 958) pertaining to the k OH values of aqueous phase reactions at different pH (n = 470; 1...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28916136/mathematical-basis-of-improved-protein-subfamily-classification-by-a-hmm-based-sequence-filter
#14
Siddhartha Kundu
Informative phylogenetic analysis is dependent on the presence of curated and annotated sequences. This may be complemented by the simultaneous availability of empirical data pertaining to their in vivo function. Confounding sequences, with their similarity to more than one functional cluster, can therefore, render any categorization ambiguous, subjective, and imprecise. Here, I analyze and discuss the development of a mathematical expression that can characterize a potential confounding protein sequence. Specifically, statistical descriptors of combinatorially arranged profile HMM scores are computed and evaluated...
September 12, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28913728/shoulder-strengthening-exercises-adapted-to-specific-shoulder-pathologies-can-be-selected-using-new-simulation-techniques-a-pilot-study
#15
Caecilia Charbonnier, Alexandre Lädermann, Bart Kevelham, Sylvain Chagué, Pierre Hoffmeyer, Nicolas Holzer
PURPOSE: Shoulder strength training exercises represent a major component of rehabilitation protocols designed for conservative or postsurgical management of shoulder pathologies. Numerous methods are described for exercising each shoulder muscle or muscle group. Limited information is available to assess potential deleterious effects of individual methods with respect to specific shoulder pathologies. Thus, the goal of this pilot study was to use a patient-specific 3D measurement technique coupling medical imaging and optical motion capture for evaluation of a set of shoulder strength training exercises regarding glenohumeral, labral and subacromial compression, as well as elongation of the rotator cuff muscles...
September 14, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28911327/negotiating-power-relations-gender-equality-and-collective-agency-are-village-health-committees-transformative-social-spaces-in-northern-india
#16
Kerry Scott, Asha S George, Steven A Harvey, Shinjini Mondal, Gupteswar Patel, Kabir Sheikh
BACKGROUND: Participatory health initiatives ideally support progressive social change and stronger collective agency for marginalized groups. However, this empowering potential is often limited by inequalities within communities and between communities and outside actors (i.e. government officials, policymakers). We examined how the participatory initiative of Village Health, Sanitation, and Nutrition Committees (VHSNCs) can enable and hinder the renegotiation of power in rural north India...
September 15, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28910696/tissue-microstructure-estimation-using-a-deep-network-inspired-by-a-dictionary-based-framework
#17
Chuyang Ye
Diffusion magnetic resonance imaging (dMRI) captures the anisotropic pattern of water displacement in the neuronal tissue and allows noninvasive investigation of the complex tissue microstructure. A number of biophysical models have been proposed to relate the tissue organization with the observed diffusion signals, so that the tissue microstructure can be inferred. The Neurite Orientation Dispersion and Density Imaging (NODDI) model has been a popular choice and has been widely used for many neuroscientific studies...
September 6, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28910473/optimization-of-simulation-and-moulage-in-military-related-medical-training
#18
Christopher Petersen, Stephen C Rush, Isabelle Gallo, Bryan Dalere, Brian Staak, Litt Moore, Win Kerr, Matthew Chandler, Will Smith
Preparation of Special Operations Forces (SOF) Medics as first responders for the battle space and austere environments is critical to optimize survival and quality of life for our Operators who may sustain serious and complex wounding patterns and illnesses. In the absence of constant clinical exposure for these medics, it is necessary to maximize all available training opportunities. The incorporation of scenario-based training helps weave together teamwork and the ability to practice treatment protocols in a tactical, controlled training environment to reproduce, to some degree, the environment in and stressors under which care will need to be delivered...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28905385/synthetic-breast-phantoms-from-patient-based-eigenbreasts
#19
Gregory M Sturgeon, Subok Park, William Paul Segars, Joseph Y Lo
PURPOSE: The limited number of 3D patient-based breast phantoms available could be augmented by synthetic breast phantoms in order to facilitate virtual clinical trials using model observers for breast imaging optimization and evaluation. METHODS: These synthetic breast phantoms were developed using Principal Component Analysis (PCA) to reduce the number of dimensions needed to describe a training set of images. PCA decomposed a training set of M breast CT volumes (with millions of voxels each) into an M-1-dimensional space of eigenvectors, which we call eigenbreasts...
September 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/28902423/partitioning-k-space-for-cylindrical-three-dimensional-rapid-acquisition-with-relaxation-enhancement-imaging-in-the-mouse-brain
#20
T Leigh Spencer Noakes, R Mark Henkelman, Brian J Nieman
Three-dimensional rapid acquisition with relaxation enhancement (RARE) scans require the assignment of each phase encode step in two dimensions to an echo in the echo train. Although this assignment is frequently made across the entire Cartesian grid, collection of only the central cylinder of k-space by eliminating the corners in each phase encode dimension reduces the scan time by ~22% with negligible impact on image quality. The recipe for the assignment of echoes to grid points for such an acquisition is less straightforward than for the simple full Cartesian acquisition case, and has important implications for image quality...
September 13, 2017: NMR in Biomedicine
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