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https://www.readbyqxmd.com/read/28227818/detecting-divisions-of-the-autonomic-nervous-system-using-wearables
#1
Annamalai Natarajan, Kevin S Xu, Brian Eriksson, Annamalai Natarajan, Kevin S Xu, Brian Eriksson, Kevin S Xu, Brian Eriksson, Annamalai Natarajan
The ability to assess a user's emotional reaction from biometrics has applications in personalization, recommendation, and enhancing user experiences, among other areas. Unfortunately, understanding the connection between biometric signals and user reactions has previously focused on black box techniques that are opaque to the underlying physiology of the user. In this paper, we explore a novel user study connecting biometric reaction to external stimuli and changes in the user's autonomic nervous system. Specifically, we focus on two competing responses, namely the sympathetic and parasympathetic nervous system, and how differing activations are related to different user responses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227128/boundary-element-simulation-of-ultrasonic-backscattering-during-the-fracture-healing-process
#2
Vassiliki T Potsika, Konstantinos N Grivas, Theodoras Gortsas, Vasilios C Protopappas, Demosthenes K Polyzos, Dimitrios I Fotiadis, Vassiliki T Potsika, Konstantinos N Grivas, Theodoras Gortsas, Vasilios C Protopappas, Demosthenes K Polyzos, Dimitrios I Fotiadis, Dimitrios I Fotiadis, Theodoros Gortsas, Vasilios C Protopappas, Vassiliki T Potsika, Konstantinos N Grivas, Demosthenes K Polyzos
Competent fracture healing monitoring and treatment requires an extensive knowledge of bone biology and microstructure. The use of non-invasive and non-radiating means for the monitoring of the bone healing process has gained significant interest in recent years. Ultrasound is considered as a modality which can contribute to the assessment of bone status during the healing process, as well as, enhance the rate of the tissues' ossification. This work presents boundary element simulations of ultrasound propagation in healing long bones to investigate the monitoring potential of backscattering parameters...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226742/a-cnn-based-neurobiology-inspired-approach-for-retinal-image-quality-assessment
#3
Dwarikanath Mahapatra, Pallab K Roy, Suman Sedai, Rahil Garnavi, Dwarikanath Mahapatra, Pallab K Roy, Suman Sedai, Rahil Garnavi, Suman Sedai, Pallab K Roy, Rahil Garnavi, Dwarikanath Mahapatra
Retinal image quality assessment (IQA) algorithms use different hand crafted features for training classifiers without considering the working of the human visual system (HVS) which plays an important role in IQA. We propose a convolutional neural network (CNN) based approach that determines image quality using the underlying principles behind the working of the HVS. CNNs provide a principled approach to feature learning and hence higher accuracy in decision making. Experimental results demonstrate the superior performance of our proposed algorithm over competing methods...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226492/toward-an-analysis-of-emotion-regulation-in-children-using-late-positive-potential
#4
Raja Majid Mehmood, Hyo Jong Lee, Raja Majid Mehmood, Hyo Jong Lee, Raja Majid Mehmood, Hyo Jong Lee
The ability of emotion regulation and emotional responses in children is a main component of emotional competence through the development process. We had employed electroencephalography (EEG) a well-known noninvasive method for recording of brain emotion signals in order to analyze the emotion regulations in children. The international affective picture system (IAPS) pictures dataset was used for selection of stimuli presentation. The stimulus presentation was commonly practiced to induce the emotional responses from human brain...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226392/bayesian-semiparametric-variable-selection-with-applications-to-periodontal-data
#5
Bo Cai, Dipankar Bandyopadhyay
A normality assumption is typically adopted for the random effects in a clustered or longitudinal data analysis using a linear mixed model. However, such an assumption is not always realistic, and it may lead to potential biases of the estimates, especially when variable selection is taken into account. Furthermore, flexibility of nonparametric assumptions (e.g., Dirichlet process) on these random effects may potentially cause centering problems, leading to difficulty of interpretation of fixed effects and variable selection...
February 22, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28226254/the-effect-of-performance-feedback-on-drivers-hazard-perception-ability-and-self-ratings
#6
Mark S Horswill, Megan Garth, Andrew Hill, Marcus O Watson
Drivers' hazard perception ability has been found to predict crash risk, and novice drivers appear to be particularly poor at this skill. This competency appears to develop only slowly with experience, and this could partially be a result of poor quality performance feedback. We report an experiment in which we provided high-quality artificial feedback on individual drivers' performance in a validated video-based hazard perception test via either: (1) a graph-based comparison of hazard perception response times between the test-taker, the average driver, and an expert driver; (2) a video-based comparison between the same groups; or (3) both...
February 19, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28226225/thymic-epithelial-cells
#7
Jakub Abramson, Graham Anderson
IntrathymicTcell development is a complex process that depends upon continuous guidance from thymus stromal cell microenvironments. The thymic epithelium within the thymic stroma comprises highly specialized cells with a high degree of anatomic, phenotypic, and functional heterogeneity. These properties are collectively required to bias thymocyte development toward production of self-tolerant and functionally competent T cells. The importance of thymic epithelial cells (TECs) is evidenced by clear links between their dysfunction and multiple diseases where autoimmunity and immunodeficiency are major components...
February 10, 2017: Annual Review of Immunology
https://www.readbyqxmd.com/read/28226189/equitable-distribution-in-rare-indications-for-liver-transplantation-the-dilemma-of-the-too-small-tablecloth-continues
#8
Andreas A Schnitzbauer, Wolf O Bechstein
Primary biliary cholangitis (formerly known as primary biliary cirrhosis) has been a classic indication for liver transplantation for more than thirty years (1). Due to the changing epidemiology of liver diseases combined with the universal lack of post-mortal grafts, the question of prioritizing allocation amongst sick patients competing for these rare grafts on the waiting list remains an unresolved challenge. In their UNOS database analysis Ashwani Singal and coworkers focus on wait-list mortality for a nowadays rare indication for liver transplantation: primary biliary cholangitis (PBC) (2)...
February 22, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28225830/ex-vivo-activation-of-cd4-t-cells-from-donors-on-suppressive-art-can-lead-to-sustained-production-of-infectious-hiv-1-from-a-subset-of-infected-cells
#9
John K Bui, Elias K Halvas, Elizabeth Fyne, Michele D Sobolewski, Dianna Koontz, Wei Shao, Brian Luke, Feiyu F Hong, Mary F Kearney, John W Mellors
The fate of HIV-infected cells after reversal of proviral latency is not well characterized. Simonetti, et al. recently showed that CD4+ T-cells containing intact proviruses can clonally expand in vivo and produce low-level infectious viremia. We hypothesized that reversal of HIV latency by activation of CD4+ T-cells can lead to the expansion of a subset of virus-producing cells rather than their elimination. We established an ex vivo cell culture system involving stimulation of CD4+ T-cells from donors on suppressive antiretroviral therapy (ART) with PMA/ionomycin (day 1-7), followed by rest (day 7-21), and then repeat stimulation (day 21-28), always in the presence of high concentrations of raltegravir and efavirenz to effectively block new cycles of viral replication...
February 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28225789/non-melanoma-skin-cancer-and-risk-of-alzheimer-s-disease-and-all-cause-dementia
#10
Sigrun A J Schmidt, Anne G Ording, Erzsébet Horváth-Puhó, Henrik T Sørensen, Victor W Henderson
Cancer patients may be at decreased risk of Alzheimer's disease. This hypothesis is best developed for non-melanoma skin cancer (NMSC), but supportive epidemiological data are sparse. We therefore conducted a nationwide cohort study of the association between NMSC and Alzheimer's disease (main outcome) and all-cause dementia. Using Danish medical databases, we identified adults diagnosed with NMSC between 1 January 1980 and 30 November 2013 (n = 216,221) and a comparison cohort of five individuals matched to each NMSC patient by sex and birth year (n = 1,081,097)...
2017: PloS One
https://www.readbyqxmd.com/read/28225732/integrating-and-assessing-structural-competency-in-an-innovative-prehealth-curriculum-at-vanderbilt-university
#11
Jonathan M Metzl, JuLeigh Petty
PROBLEM: Structural competency is a framework for conceptualizing and addressing health-related social justice issues that emphasizes diagnostic recognition of economic and political conditions producing and racializing inequalities in health. Strategies are needed to teach prehealth undergraduate students concepts central to structural competency (e.g., structural inequity, structural racism, structural stigma) and to evaluate their impact. APPROACH: The curriculum for Vanderbilt University's innovative prehealth major in medicine, health, and society (MHS) was reshaped in 2013 to incorporate structural competency concepts and skills into undergraduate courses...
March 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28225731/queer-frontiers-in-medicine-a-structural-competency-approach
#12
Cameron A Donald, Sayantani DasGupta, Jonathan M Metzl, Kristen L Eckstrand
In 2014, the Association of American Medical Colleges (AAMC) published a report proposing qualifiers of competence to guide medical educators towards training physicians to appropriately care for individuals who are or may be lesbian, gay, bisexual, transgender (LGBT); gender nonconforming (GNC); and/or born with differences in sex development (DSD). These qualifiers provide content and context to an existing framework heavily used in competency-based medical education, emphasizing individual and interpersonal abilities to enhance care delivered to individuals identifying as LGBT, GNC, and/or born with DSD...
March 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28225730/the-medical-legal-partnership-approach-to-teaching-social-determinants-of-health-and-structural-competency-in-residency-programs
#13
Edward G Paul, Mallory Curran, Elizabeth Tobin Tyler
Medical-legal partnerships (MLPs) embed civil legal services lawyers into health care settings and interprofessional health care teams delivering care to low-income or otherwise vulnerable patients and communities. MLPs present the opportunity to instill in residents a practical understanding of the social determinants of health and provide them with concrete tools to address them. MLP training helps residents develop structural competency and build the skills necessary to address barriers to health at the patient, institutional, and population levels...
March 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28225704/the-applicability-of-the-nclex-rn-to-the-canadian-testing-population-a-review-of-regulatory-body-evidence
#14
Jenn Salfi, Barry Carbol
The NCLEX-RN® was adopted by Canadian regulators in 2011 as the test which entry-level nurses must pass in order to be certified to practice. As part of their justification for adopting the exam, the Canadian regulators pointed to two studies conducted by the National Council of State Boards of Nursing (NCSBN). These studies aimed to determine the applicability of the NCLEX-RN® test plan to the Canadian testing population (NCSBN, 2014),with the NCLEX-RN® providing "a fair, valid, and psychometrically sound measurement" of nursing competencies of entry-level RNs in Ontario, Canada (NCSBN, 2012 , p...
January 31, 2017: International Journal of Nursing Education Scholarship
https://www.readbyqxmd.com/read/28225661/lgbtq-youth-part-1
#15
Tracy Perron, Connie Kartoz, Chaya Himelfarb
In order to provide holistic care, school nurses must be culturally competent by being sensitive to health disparities experienced by students in at-risk populations. Despite the growing acceptance toward gender and sexual minorities, LGBTQ youth remain an at-risk population in our communities and our schools. School nurses as well as school counselors, social workers, and psychologists can increase their cultural competence in caring for this group of students by increasing their understanding of appropriate terminology and risks associated with this vulnerable group...
March 2017: NASN School Nurse
https://www.readbyqxmd.com/read/28225605/electrostatic-control-of-regioselectivity-in-au-i-catalyzed-hydroarylation
#16
Vivian M Lau, William C Pfalzgraff, Thomas E Markland, Matthew W Kanan
Competing pathways in catalytic reactions often involve transition states with very different charge distributions, but this difference is rarely exploited to control selectivity. The proximity of a counterion to a charged catalyst in an ion paired complex gives rise to strong electrostatic interactions that could be used to energetically differentiate transition states. Here we investigate the effects of ion pairing on the regioselectivity of the hydroarylation of 3-substituted phenyl propargyl ethers catalyzed by cationic Au(I) complexes, which forms a mixture of 5- and 7-substituted 2H-chromenes...
February 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28225589/impact-of-isovalent-and-aliovalent-doping-on-mechanical-properties-of-mixed-phase-bifeo3
#17
Yooun Heo, Songbai Hu, Pankaj Sharma, Kwang Eun Kim, Byung-Kweon Jang, Claudio Cazorla, Chan-Ho Yang, Jan Seidel
In this study, we report the effect of doping in morphotropic BiFeO3 (BFO) thin films on mechanical properties, revealing variations in the elasticity across the competing phases and their boundaries. Spectroscopic force-distance (F-D) curves and force mapping images by AFM are used to characterize the structure and elastic properties of three BFO thin film materials (pure-BFO, Ca-doped BFO, La-doped BFO). We show that softening behaviour is observed in isovalent La-doped BFO, whereas hardening is seen in aliovalent Ca-doped BFO...
February 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28225523/the-age-related-performance-decline-in-ironman-triathlon-starts-earlier-in-swimming-than-in-cycling-and-running
#18
Ilja Käch, Christoph A Rüst, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle
In Ironman triathlon, the number of overall male and female finishers increased in the last 30 years, while an improvement in performance has been reported. Studies concluding these numbers only analysed the top ten athletes per age group instead of all finishers, therefore a selection bias might have occurred. The aim of the present study was to investigate participation, performance and the age-related performance decline of all pro and age group triathletes ranked in all Ironman triathlons held worldwide between 2002 and 2015...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28225481/the-dysfunction-of-inhibition-control-in-pituitary-patients-evidence-from-the-go-nogo-event-related-potential-study
#19
Chenglong Cao, Jian Song, Shun Yao, Yan Yan, Shun Li, Guibao Peng, Pan Ma, Hao Du, Cheng Huang, Huichao Ding, Yuanzhi He, Ronghui Sun, Guozheng Xu
Pituitary tumor is an intracranial tumor; because of the development of neuroimaging technology in recent years, morbidity is likely to increase. Evidence showed impaired cognitive ability of patients with pituitary adenoma. There is evidence that neurobehavioral disorders are common in pituitary adenoma patients. This disorder is because of the cognitive and emotional function of the important functional areas of the brain oppressed and hormone imbalance. Individuals' mental activity is controlled by the brain and the abnormal mental activity is caused by both the structural abnormalities of the brain and neurochemical dysfunction...
February 20, 2017: Neuroreport
https://www.readbyqxmd.com/read/28225462/validity-evidence-from-ratings-of-pediatric-interns-and-subinterns-on-a-subset-of-pediatric-milestones
#20
Teri L Turner, Vasudha L Bhavaraju, Ulana A Luciw-Dubas, Patricia J Hicks, Sara Multerer, Amanda Osta, Jennifer McDonnell, Sue Poynter, Daniel J Schumacher, Rebecca Tenney-Soeiro, Linda Waggoner-Fountain, Alan Schwartz
PURPOSE: To investigate evidence for validity of faculty members' pediatric milestone (PM) ratings of interns (first-year residents) and subinterns (fourth-year medical students) on nine subcompetencies related to readiness to serve as a pediatric intern in the inpatient setting. METHOD: The Association of Pediatric Program Directors Longitudinal Educational Assessment Research Network (APPD LEARN) and the National Board of Medical Examiners collaborated to investigate the utility of assessments of the PMs for trainees' performance...
February 21, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
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