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https://www.readbyqxmd.com/read/28529731/a-bayesian-supervised-dual-dimensionality-reduction-model-for-simultaneous-decoding-of-lfp-and-spike-train-signals
#1
Andrew Holbrook, Alexander Vandenberg-Rodes, Norbert Fortin, Babak Shahbaba
Neuroscientists are increasingly collecting multimodal data during experiments and observational studies. Different data modalities-such as EEG, fMRI, LFP, and spike trains-offer different views of the complex systems contributing to neural phenomena. Here, we focus on joint modeling of LFP and spike train data, and present a novel Bayesian method for neural decoding to infer behavioral and experimental conditions. This model performs supervised dual-dimensionality reduction: it learns low-dimensional representations of two different sources of information that not only explain variation in the input data itself, but also predict extra-neuronal outcomes...
2017: Stat: the ISI's Journal for Rapid Dissemination of Statistics Research
https://www.readbyqxmd.com/read/28529222/the-effect-of-childhood-household-dysfunction-on-future-hiv-risk-among-probationers
#2
Brittany Marshall, Stephanie A Spohr, Faye S Taxman, Scott T Walters
INTRODUCTION: Adverse childhood events (ACE) can lead to numerous health risks in adulthood. ACEs coupled with increased risk-taking behaviors can lead to increased risk for HIV infection, particularly in vulnerable populations. The purpose of this study was to determine if mental health symptom severity mediates the relationship between childhood household dysfunction and adult HIV risk among a group of probationers. METHODS: T-tests were used to evaluate associations between demographic characteristics and cumulative engagement in sexual risk behaviors in 282 drug-involved probationers...
2017: Journal of Health Care for the Poor and Underserved
https://www.readbyqxmd.com/read/28529114/perceptions-of-healthy-eating-amongst-indian-adolescents-in-india-and-canada
#3
Natasha Correa, Divya Rajaraman, Sumathi Swaminathan, Mario Vaz, K G Jayachitra, Scott A Lear, Zubin Punthakee
INTRODUCTION: Dietary patterns have contributed to the rising prevalence of overweight and obesity among Indian adolescents. Yet there are limited studies on their perspectives on healthy eating. The purpose of this study was to understand perceptions and attitudes of Indian-origin adolescents in India and Canada that may contribute to healthy eating behaviour. METHODS: Qualitative data collection and analysis of 13 focus group discussions (FGD) was conducted among 34 boys and 39 girls (total number of participants: 73) of different weight and socioeconomic status (SES) in rural and urban India, and urban Canada aged 11-18 years...
May 18, 2017: Appetite
https://www.readbyqxmd.com/read/28526929/analytical-management-of-patients-undergoing-oral-anticoagulant-therapy-could-have-a-strong-impact-on-clinical-outcomes-a-follow-up-study
#4
Vincenzo De Iuliis, Sebastiano Ursi, Gianfranco Vitullo, Irma Griffo, Antonio Marino, Marika Caruso, Francesco Cipollone, Sabrina Capodifoglio, Veronica Breda, Elena Toniato, Alfonso Pennelli, Pio Conti, Stefano Martinotti
INTRODUCTION: Oral anticoagulant therapy, such as vitamin K antagonists (VKAs), is prominent for the prevention of cerebral ischemic stroke or systemic embolism and all-cause mortality in patients with atrial fibrillation, venous thromboembolism, and mechanical or biological valve. VKA treatment requires monitoring of the international normalized ratio (INR) in order to maintain it in a therapeutic range, avoiding side effects, the main and most significant of which is bleeding. The aim of the present study was to evaluate the event rates of several clinical composite outcomes, such as bleeding, thromboembolic events, and all-cause death...
May 19, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28526512/privacy-trainee-rights-and-accountability-in-radiology-education
#5
REVIEW
Cory M Pfeifer
RATIONALE AND OBJECTIVES: Academic radiologists commonly hold multiple simultaneous roles within the landscape of physician training. This paper analyzes theoretical scenarios describing relationships between medical students, residents, and physician educators in radiology. MATERIALS AND METHODS: The scenarios presented involve medical student supervision, radiology resident recruitment, and resident termination with respect to relevant ethical, regulatory, and legal considerations...
March 28, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28526460/semi-supervised-medical-entity-recognition-a-study-on-spanish-and-swedish-clinical-corpora
#6
Alicia Pérez, Rebecka Weegar, Arantza Casillas, Koldo Gojenola, Maite Oronoz, Hercules Dalianis
OBJECTIVE: The goal of this study is to investigate entity recognition within Electronic Health Records (EHRs) focusing on Spanish and Swedish. Of particular importance is a robust representation of the entities. In our case, we utilized unsupervised methods to generate such representations. METHODS: The significance of this work stands on its experimental layout. The experiments were carried out under the same conditions for both languages. Several classification approaches were explored: maximum probability, CRF, Perceptron and SVM...
May 16, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28526212/3d-deeply-supervised-network-for-automated-segmentation-of-volumetric-medical-images
#7
Qi Dou, Lequan Yu, Hao Chen, Yueming Jin, Xin Yang, Jing Qin, Pheng-Ann Heng
While deep convolutional neural networks (CNNs) have achieved remarkable success in 2D medical image segmentation, it is still a difficult task for CNNs to segment important organs or structures from 3D medical images owing to several mutually affected challenges, including the complicated anatomical environments in volumetric images, optimization difficulties of 3D networks and inadequacy of training samples. In this paper, we present a novel and efficient 3D fully convolutional network equipped with a 3D deep supervision mechanism to comprehensively address these challenges; we call it 3D DSN...
May 8, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28526083/improving-local-health-workers-knowledge-of-malaria-in-the-elimination-phase-determinants-and-strategies-a-cross-sectional-study-in-rural-china
#8
Ruoxi Wang, Shangfeng Tang, Jun Yang, Tian Shao, Piaopiao Shao, Chunyan Liu, Da Feng, Hang Fu, Xiaoyu Chen, Tao Hu, Zhanchun Feng
BACKGROUND: The current stage of malaria elimination in China requires experienced local health workers with sufficient knowledge of malaria who help to keep the public health system vigilant about a possible resurgence. However, the influencing factors of local health workers' knowledge level are not fully comprehended. This study aims to explore the factors with heavy impact on local health worker's knowledge of malaria and propose corresponding suggestions. METHODS: Underpinned by stratified sampling method, a cross-sectional survey was carried out between November 2014 and April 2016...
May 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28526048/men-s-and-women-s-response-to-treatment-and-perceptions-of-outcomes-in-a-randomized-controlled-trial-of-injectable-opioid-assisted-treatment-for-severe-opioid-use-disorder
#9
Heather Palis, Kirsten Marchand, Daphne Guh, Suzanne Brissette, Kurt Lock, Scott MacDonald, Scott Harrison, Aslam H Anis, Michael Krausz, David C Marsh, Martin T Schechter, Eugenia Oviedo-Joekes
BACKGROUND: To test whether there are gender differences in treatment outcomes among patients receiving injectable opioids for the treatment of long-term opioid-dependence. The study additionally explores whether men and women have different perceptions of treatment effectiveness. METHODS: This study is a secondary analysis from SALOME, a double-blind, phase III, randomized controlled trial testing the non-inferiorirty of injectable hydromorphone to injectable diacetylmorphine among 202 long-term street opioid injectors in Vancouver (Canada)...
May 19, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28525811/an-online-supervised-learning-method-based-on-gradient-descent-for-spiking-neurons
#10
Yan Xu, Jing Yang, Shuiming Zhong
The purpose of supervised learning with temporal encoding for spiking neurons is to make the neurons emit a specific spike train encoded by precise firing times of spikes. The gradient-descent-based (GDB) learning methods are widely used and verified in the current research. Although the existing GDB multi-spike learning (or spike sequence learning) methods have good performance, they work in an offline manner and still have some limitations. This paper proposes an online GDB spike sequence learning method for spiking neurons that is based on the online adjustment mechanism of real biological neuron synapses...
April 27, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28525464/the-cardiac-rehabilitation-model-improves-fitness-quality-of-life-and-depression-in-breast-cancer-survivors
#11
Lianne B Dolan, Danielle Barry, Teresa Petrella, Lindsay Davey, Ann Minnes, Allison Yantzi, Susan Marzolini, Paul Oh
PURPOSE: Exercise is a demonstrated, therapeutic strategy for cancer survivors to minimize many treatment-induced side effects and may decrease risk of recurrence. Nonetheless, structured programs that combine exercise and education are not yet standardized within cancer care. The Health, Exercise, Active Living, Therapeutic lifestyle (HEALTh) program is a clinical exercise program based on the established cardiac rehabilitation model, but customized for female breast cancer survivors...
May 18, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28524099/metabolomics-of-therapy-response-in-preclinical-glioblastoma-a-multi-slice-mrsi-based-volumetric-analysis-for-noninvasive-assessment-of-temozolomide-treatment
#12
Nuria Arias-Ramos, Laura Ferrer-Font, Silvia Lope-Piedrafita, Victor Mocioiu, Margarida Julià-Sapé, Martí Pumarola, Carles Arús, Ana Paula Candiota
Glioblastoma (GBM) is the most common aggressive primary brain tumor in adults, with a short survival time even after aggressive therapy. Non-invasive surrogate biomarkers of therapy response may be relevant for improving patient survival. Previous work produced such biomarkers in preclinical GBM using semi-supervised source extraction and single-slice Magnetic Resonance Spectroscopic Imaging (MRSI). Nevertheless, GBMs are heterogeneous and single-slice studies could prevent obtaining relevant information. The purpose of this work was to evaluate whether a multi-slice MRSI approach, acquiring consecutive grids across the tumor, is feasible for preclinical models and may produce additional insight into therapy response...
May 18, 2017: Metabolites
https://www.readbyqxmd.com/read/28523452/training-for-leadership-roles-in-academic-medicine-opportunities-for-psychologists-in-the-aamc-lead-program
#13
Donna LaPaglia, Britta Thompson, Janet Hafler, Sheila Chauvin
Psychologists' roles within academic medicine have expanded well beyond research and scholarship. They are active as providers of patient care, medical education, and clinical supervision. Although the number of psychologists in academic health centers continues to grow, they represent a small portion of total medical school faculties. However, with the movement toward collaborative care models, emphasis on interprofessional teams, and increased emphasis on psychological science topics in medical curricula, psychologists are well-positioned to make further contributions...
May 18, 2017: Journal of Clinical Psychology in Medical Settings
https://www.readbyqxmd.com/read/28523381/national-clinical-guidelines-for-non-surgical-treatment-of-patients-with-recent-onset-neck-pain-or-cervical-radiculopathy
#14
REVIEW
Per Kjaer, Alice Kongsted, Jan Hartvigsen, Alexander Isenberg-Jørgensen, Berit Schiøttz-Christensen, Bolette Søborg, Charlotte Krog, Christian Martin Møller, Christine Marie Bækø Halling, Henrik Hein Lauridsen, Inge Ris Hansen, Jesper Nørregaard, Karsten Juhl Jørgensen, Lars Valentin Hansen, Marie Jakobsen, Martin Bach Jensen, Martin Melbye, Peter Duel, Steffan W Christensen, Tina Myung Povlsen
PURPOSE: To summarise recommendations about 21 selected non-surgical interventions for recent onset (<12 weeks) non-specific neck pain (NP) and cervical radiculopathy (CR) based on two guidelines from the Danish Health Authority. METHODS: Two multidisciplinary working groups formulated recommendations based on the GRADE approach. RESULTS: Twelve recommendations were based on evidence and nine on consensus. Management should include information about prognosis, warning signs, and advise to remain active...
May 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28522969/equilibrium-propagation-bridging-the-gap-between-energy-based-models-and-backpropagation
#15
Benjamin Scellier, Yoshua Bengio
We introduce Equilibrium Propagation, a learning framework for energy-based models. It involves only one kind of neural computation, performed in both the first phase (when the prediction is made) and the second phase of training (after the target or prediction error is revealed). Although this algorithm computes the gradient of an objective function just like Backpropagation, it does not need a special computation or circuit for the second phase, where errors are implicitly propagated. Equilibrium Propagation shares similarities with Contrastive Hebbian Learning and Contrastive Divergence while solving the theoretical issues of both algorithms: our algorithm computes the gradient of a well-defined objective function...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/28522893/hearcare-hearing-and-communication-assistance-for-resident-engagement
#16
REVIEW
Catherine V Palmer, Reem Mulla, Elizabeth Dervin, Kathleen Costigan Coyan
Impaired hearing is related to poor health outcomes, including compromised cognitive function, in aging individuals. Hearing loss is the third most common chronic health condition after arthritis and heart disease in older adults and the fourth most detrimental condition related to quality of life in older adults. Only 18% of aging adults who have impactful hearing loss actually use custom-fit amplification. Therefore, the majority of aging individuals entering senior living facilities will have untreated hearing loss...
May 2017: Seminars in Hearing
https://www.readbyqxmd.com/read/28522791/career-in-vascular-surgery-the-medical-student-s-perspective
#17
Malwina K Grobelna, Hubert Stępak, Barbara Kołodziejczak, Łukasz Dzieciuchowicz, Grzegorz Oszkinis
AIM: Under the supervision of the Department of General and Vascular Surgery of Poznan University of Medical Sciences, a questionnaire was distributed online or as a paper version to medical students (MSs) in order to better understand the attitudes towards surgery as a specialty and to determine the reasons why students do and do not choose vascular surgery as their career path. MATERIALS AND METHODS: The questionnaire was distributed online or as a paper version to MSs in the 3rd, 5th, and 6th year of the PUMS 6-year M...
February 28, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28522031/-the-french-medecine-pricing-committee-and-the-medicine-economic-policy-rules-and-competences
#18
D Giorgi
The French medicine pricing committee (CEPS), a governmental and inter-institutional body exercises essential competences for the regulation of the economy of the reimbursable drugs in France. It provides a good example of administered price regulation. It also supervises the proper use of products (control of promotion, conventional control of sales volumes). Finally, it regulates the annual envelope of drug expenditures by means of discounts paid by pharmaceutical companies. The article presents the legal criteria and the doctrine of price setting used in France...
May 15, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28521829/supervised-injection-facilities-in-canada-past-present-and-future
#19
REVIEW
Thomas Kerr, Sanjana Mitra, Mary Clare Kennedy, Ryan McNeil
Canada has long contended with harms arising from injection drug use. In response to epidemics of HIV infection and overdose in Vancouver in the mid-1990s, a range of actors advocated for the creation of supervised injection facilities (SIFs), and after several unsanctioned SIFs operated briefly and closed, Canada's first sanctioned SIF opened in 2003. However, while a large body of evidence highlights the successes of this SIF in reducing the health and social harms associated with injection drug use, extraordinary efforts were needed to preserve it, and continued activism by local people who inject drugs (PWID) and healthcare providers was needed to promote further innovation and address gaps in SIF service delivery...
May 18, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28521616/a-10-gene-classifier-for-indeterminate-thyroid-nodules-development-and-multicenter-accuracy-study
#20
Hernan E Gonzalez, Jose R Martínez, Sergio Vargas, Antonieta Solar, Loreto Pamela Véliz, Francisco Cruz, Tatiana Arias, Soledad Loyola, Eleonora Horvath, Hernán Tala, Eufrosina Traipe, Manuel Meneses, Luis Marin, Nelson Wohllk, Rene Eduardo Diaz, Jesús Véliz, Pedro Pineda, Patricia Arroyo, Natalia Mena, Milagros Bracamonte, Giovanna Miranda, Elsa Bruce, Soledad Urra
BACKGROUND: In most of the world, diagnostic surgery remains as the most frequent approach for indeterminate thyroid cytology. Although several molecular tests are available for central-lab testing in the US, there are no available kits for local laboratory testing. The aim of this study was to develop a prototype in-vitro diagnostic (IVD) gene classifier for diagnosis of indeterminate thyroid cytology. METHODS: In a first stage, the expression of 18 genes was determined by qPCR in a broad histopathological spectrum of fresh tissue biopsies (114)...
May 18, 2017: Thyroid: Official Journal of the American Thyroid Association
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