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https://www.readbyqxmd.com/read/29342435/the-2016-american-academy-of-ophthalmology-iris%C3%A2-registry-intelligent-research-in-sight-database-characteristics-and-methods
#1
Michael F Chiang, Alfred Sommer, William L Rich, Flora Lum, David W Parke
PURPOSE: To describe the characteristics of the patient population included in the 2016 IRIS® Registry (Intelligent Research in Sight) database for analytic aims. DESIGN: Description of a clinical data registry. PARTICIPANTS: The 2016 IRIS Registry database consists of 17 363 018 unique patients from 7200 United States-based ophthalmologists in the United States. METHODS: Electronic health record (EHR) data were extracted from the participating practices and placed into a clinical database...
January 13, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29342396/cross-domain-metric-and-multiple-kernel-learning-based-on-information-theory
#2
Wei Wang, Hao Wang, Chen Zhang, Yang Gao
Learning an appropriate distance metric plays a substantial role in the success of many learning machines. Conventional metric learning algorithms have limited utility when the training and test samples are drawn from related but different domains (i.e., source domain and target domain). In this letter, we propose two novel metric learning algorithms for domain adaptation in an information-theoretic setting, allowing for discriminating power transfer and standard learning machine propagation across two domains...
January 17, 2018: Neural Computation
https://www.readbyqxmd.com/read/29342241/ipat-intelligent-prediction-and-association-tool-for-genomic-research
#3
Chunpeng James Chen, Zhiwu Zhang
Summary: The ultimate goal of genomic research is to effectively predict phenotypes from genotypes so that medical management can improve human health and molecular breeding can increase agricultural production. Genomic prediction or selection (GS) plays a complementary role to genome-wide association studies (GWAS), which is the primary method to identify genes underlying phenotypes. Unfortunately, most computing tools cannot perform data analyses for both GWAS and GS. Furthermore, the majority of these tools are executed through a command-line interface (CLI), which requires programming skills...
January 11, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29341818/medicine-as-it-should-be-teaching-team-and-teamwork-during-a-palliative-care-clerkship
#4
Barbara A Head, Christian Davis Furman, Andrew M Lally, Kimberly Leake, Mark Pfeifer
BACKGROUND: Interprofessional Education (IPE) is an important component of medical education. Rotations with palliative care interdisciplinary teams (IDTs) provide an optimal environment for IPE and teaching teamwork skills. OBJECTIVE: Our objective was to assess the learning of senior medical students during a palliative care rotation. DESIGN: A constant comparison method based on grounded theory was used in this qualitative study. SETTING/SUBJECTS: Senior medical students completed a semi-structured reflective writing exercise after a required one-week palliative care clerkship...
January 17, 2018: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/29341809/modified-directed-self-learning-sessions-in-physiology-with-prereading-assignments-and-pecha-kucha-talks-perceptions-of-students
#5
Reem Rachel Abraham, Sharmila Torke, James Gonsalves, Sareesh Naduvil Narayanan, M Ganesh Kamath, Jay Prakash, Kiranmai S Rai
The present study reports perceptions of first-year undergraduate medical students ( n = 120), regarding modified directed self-learning (DSL) sessions in physiology. Students were provided with prereading assignments (faculty developed PowerPoint slides containing diagrams with incomplete labeling/flowcharts with missing steps) pertaining to the DSL topic 1 wk before the scheduled small-group DSL presentations. During DSL presentation sessions, which were facilitated by teachers, a few students individually presented learning objectives in the specified topic...
March 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29341612/stabilization-of-nabh4-in-methanol-using-a-catalytic-amount-of-naome-reduction-of-esters-and-lactones-at-room-temperature-without-solvent-induced-loss-of-hydride
#6
Prasanth C P, Ebbin Joseph, Abhijith A, Nair D S, Ibrahim Ibnusaud, Jevgenij Raskatov, Bakthan Singaram
Rapid reaction of NaBH4 with MeOH precludes its use as a solvent for large-scale ester reductions. We have now learned that a catalytic amount of NaOMe (5 mol %) stabilizes NaBH4 solutions in methanol at 25 °C and permits the use of these solutions for the reduction of esters to alcohols. The generality of this reduction method was demonstrated using 22 esters including esters of naturally occurring chiral γ-butyrolactone containing dicarboxylic acids. This method permits the chemoselective reductions of esters in the presence of cyano and nitro groups and the reductive cyclization of a pyrrolidinedione ester to a fused five-membered furo[2,3-b]pyrrole and a (-)-crispine A analogue in high optical and chemical yields...
January 17, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29341445/automated-detection-of-preserved-photoreceptor-on-optical-coherence-tomography-in-choroideremia-based-on-machine-learning
#7
Zhuo Wang, Acner Camino, Ahmed M Hagag, Jie Wang, Richard G Weleber, Paul Yang, Mark E Pennesi, David Huang, Dengwang Li, Yali Jia
Optical coherence tomography (OCT) can demonstrate early deterioration of the photoreceptor integrity caused by inherited retinal degeneration diseases (IRD). A machine learning method based on random forests was developed to automatically detect continuous areas of preserved ellipsoid zone structure (an easily recognizable part of the photoreceptors on OCT) in sixteen eyes of patients with choroideremia (a type of IRD). Pseudopodial extensions protruding from the preserved ellipsoid zone areas are detected separately by a local active contour routine...
January 17, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29341442/motivating-influences-and-ability-based-outcomes-of-dental-hygiene-baccalaureate-education-in-canada
#8
Z Kanji, D M Laronde
BACKGROUND: There is a scarcity of studies on Canadian baccalaureate dental hygienists. As discussions about baccalaureate education for dental hygiene continue on a national level, examining outcomes of earning a dental hygiene degree is paramount. OBJECTIVE: To investigate the motivating reasons and ability-based outcomes of earning a Bachelor of Dental Science in Dental Hygiene (BDSc) degree from the University of British Columbia (UBC), Canada. METHODS: UBC dental hygiene entry-to-practice (ETP) and degree-completion (DC) graduates (n = 116; 32%) from 1994 to 2016 participated in an online mixed-methods survey...
January 17, 2018: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/29341341/prediction-of-activation-patterns-preceding-hallucinations-in-patients-with-schizophrenia-using-machine-learning-with-structured-sparsity
#9
Amicie de Pierrefeu, Thomas Fovet, Fouad Hadj-Selem, Tommy Löfstedt, Philippe Ciuciu, Stephanie Lefebvre, Pierre Thomas, Renaud Lopes, Renaud Jardri, Edouard Duchesnay
Despite significant progress in the field, the detection of fMRI signal changes during hallucinatory events remains difficult and time-consuming. This article first proposes a machine-learning algorithm to automatically identify resting-state fMRI periods that precede hallucinations versus periods that do not. When applied to whole-brain fMRI data, state-of-the-art classification methods, such as support vector machines (SVM), yield dense solutions that are difficult to interpret. We proposed to extend the existing sparse classification methods by taking the spatial structure of brain images into account with structured sparsity using the total variation penalty...
January 16, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29341325/characterization-of-adrenal-lesions-on-unenhanced-mri-using-texture-analysis-a-machine-learning-approach
#10
Valeria Romeo, Simone Maurea, Renato Cuocolo, Mario Petretta, Pier Paolo Mainenti, Francesco Verde, Milena Coppola, Serena Dell'Aversana, Arturo Brunetti
BACKGROUND: Adrenal adenomas (AA) are the most common benign adrenal lesions, often characterized based on intralesional fat content as either lipid-rich (LRA) or lipid-poor (LPA). The differentiation of AA, particularly LPA, from nonadenoma adrenal lesions (NAL) may be challenging. Texture analysis (TA) can extract quantitative parameters from MR images. Machine learning is a technique for recognizing patterns that can be applied to medical images by identifying the best combination of TA features to create a predictive model for the diagnosis of interest...
January 17, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29340725/decision-making-in-management-of-the-complex-trauma-patient-changing-the-mindset-of-the-non-trauma-surgeon
#11
Linda Sonesson, Kenneth Boffard, Lars Lundberg, Martin Rydmark, Klas Karlgren
BACKGROUND: European surgeons are frequently subspecialized and trained primarily in elective surgical techniques. As trauma leaders, they may occasionally have to deal with complex polytrauma, advanced management techniques, differing priorities, and the need for multidisciplinary care. There is a lack of expertise, experience, and a low trauma volume, as well as a lack of research, with limited support as to the decision-making and teaching challenges present. We studied what experienced trauma experts describe as the challenges that are specific to the advanced surgical decision-making required, whether civilian, humanitarian, or military...
January 16, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29340645/a-plasma-metabolomic-signature-involving-purine-metabolism-in-human-optic-atrophy-1-opa1-related-disorders
#12
Cinzia Bocca, Judith Kouassi Nzoughet, Stéphanie Leruez, Patrizia Amati-Bonneau, Marc Ferré, Mariame-Selma Kane, Charlotte Veyrat-Durebex, Juan Manuel Chao de la Barca, Arnaud Chevrollier, Chadi Homedan, Christophe Verny, Dan Miléa, Vincent Procaccio, Gilles Simard, Dominique Bonneau, Guy Lenaers, Pascal Reynier
Purpose: Dominant optic atrophy (DOA; MIM [Mendelian Inheritance in Man] 165500), resulting in retinal ganglion cell degeneration, is mainly caused by mutations in the optic atrophy 1 (OPA1) gene, which encodes a dynamin guanosine triphosphate (GTP)ase involved in mitochondrial membrane processing. This work aimed at determining whether plasma from OPA1 pathogenic variant carriers displays a specific metabolic signature. Methods: We applied a nontargeted clinical metabolomics pipeline based on ultra-high-pressure liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS) allowing the exploration of 500 polar metabolites in plasma...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29340600/development-and-impact-of-a-massive-open-online-course-mooc-for-antimicrobial-stewardship
#13
Jacqueline Sneddon, Gavin Barlow, Sally Bradley, Adrian Brink, Sujith J Chandy, Dilip Nathwani
Background: The University of Dundee and the BSAC developed a massive open online course (MOOC) to address the global need for education to support antimicrobial stewardship in low- and middle-income countries. Methods: An interactive course, Antimicrobial Stewardship: Managing Antibiotic Resistance, was developed and delivered via the FutureLearn© platform. The course ran over four 6 week periods during 2015 and 2016 supported by educators and was evaluated via data on uptake and feedback from learners on impact on clinical practice...
January 10, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29339971/terzyme-a-tool-for-identification-and-analysis-of-the-plant-terpenome
#14
Piyush Priya, Archana Yadav, Jyoti Chand, Gitanjali Yadav
Background: Terpenoid hydrocarbons represent the largest and most ancient group of phytochemicals, such that the entire chemical library of a plant is often referred to as its 'terpenome'. Besides having numerous pharmacological properties, terpenes contribute to the scent of the rose, the flavors of cinnamon and the yellow of sunflowers. Rapidly increasing -omics datasets provide an unprecedented opportunity for terpenome detection, paving the way for automated web resources dedicated to phytochemical predictions in genomic data...
2018: Plant Methods
https://www.readbyqxmd.com/read/29339931/assessment-of-knowledge-and-skills-in-information-literacy-instruction-for-rehabilitation-sciences-students-a-scoping-review
#15
Jill T Boruff, Pamela Harrison
Objective: This scoping review investigates how knowledge and skills are assessed in the information literacy (IL) instruction for students in physical therapy, occupational therapy, or speech-language pathology, regardless of whether the instruction was given by a librarian. The objectives were to discover what assessment measures were used, determine whether these assessment methods were tested for reliability and validity, and provide librarians with guidance on assessment methods to use in their instruction in evidence-based practice contexts...
January 2018: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/29339510/artificial-intelligence-exploration-of-unstable-protocells-leads-to-predictable-properties-and-discovery-of-collective-behavior
#16
Laurie J Points, James Ward Taylor, Jonathan Grizou, Kevin Donkers, Leroy Cronin
Protocell models are used to investigate how cells might have first assembled on Earth. Some, like oil-in-water droplets, can be seemingly simple models, while able to exhibit complex and unpredictable behaviors. How such simple oil-in-water systems can come together to yield complex and life-like behaviors remains a key question. Herein, we illustrate how the combination of automated experimentation and image processing, physicochemical analysis, and machine learning allows significant advances to be made in understanding the driving forces behind oil-in-water droplet behaviors...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339346/user-centered-design-of-learn-to-quit-a-smoking-cessation-smartphone-app-for-people-with-serious-mental-illness
#17
Roger Vilardaga, Javier Rizo, Emily Zeng, Julie A Kientz, Richard Ries, Chad Otis, Kayla Hernandez
BACKGROUND: Smoking rates in the United States have been reduced in the past decades to 15% of the general population. However, up to 88% of people with psychiatric symptoms still smoke, leading to high rates of disease and mortality. Therefore, there is a great need to develop smoking cessation interventions that have adequate levels of usability and can reach this population. OBJECTIVE: The objective of this study was to report the rationale, ideation, design, user research, and final specifications of a novel smoking cessation app for people with serious mental illness (SMI) that will be tested in a feasibility trial...
January 16, 2018: JMIR Serious Games
https://www.readbyqxmd.com/read/29338013/dynamical-networks-of-influence-in-small-group-discussions
#18
Mehdi Moussaïd, Alejandro Noriega Campero, Abdullah Almaatouq
In many domains of life, business and management, numerous problems are addressed by small groups of individuals engaged in face-to-face discussions. While research in social psychology has a long history of studying the determinants of small group performances, the internal dynamics that govern a group discussion are not yet well understood. Here, we rely on computational methods based on network analyses and opinion dynamics to describe how individuals influence each other during a group discussion. We consider the situation in which a small group of three individuals engages in a discussion to solve an estimation task...
2018: PloS One
https://www.readbyqxmd.com/read/29337602/defining-the-learning-curve-for-hip-arthroscopy-a-threshold-analysis-of-the-volume-outcomes-relationship
#19
Nabil Mehta, Peter Chamberlin, Robert G Marx, Chisa Hidaka, Yile Ge, Danyal H Nawabi, Stephen Lyman
BACKGROUND: Hip arthroscopy has emerged as a successful option for the treatment of femoroacetabular impingement and related hip disorders, but the procedure is technically challenging. PURPOSE: To define the learning curve through which surgeons become proficient at hip arthroscopy. STUDY DESIGN: Cohort study; level of evidence, 3. METHODS: The authors identified hip arthroscopy procedures performed by surgeons through a New York State database (Statewide Planning and Research Cooperative System) and followed those cases for additional hip surgery (total hip arthroplasty, hip resurfacing, or ipsilateral hip arthroscopy) within 5 years of the original procedure...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29337263/imem-2lsaac-a-two-level-model-for-discrimination-of-membrane-proteins-and-their-types-by-extending-the-notion-of-saac-into-chou-s-pseudo-amino-acid-composition
#20
Muhammad Arif, Maqsood Hayat, Zahoor Jan
Membrane proteins execute significant roles in cellular processes of living organisms, ranging from cell signaling to cell adhesion. As a major part of a cell, the identification of membrane proteins and their functional types become a challenging job in the field of bioinformatics and proteomics from last few decades. Traditional experimental procedures are slightly applicable due to lack of recognized structures, enormous time and space. In this regard, the demand for fast, accurate and intelligent computational method is increased day by day...
January 11, 2018: Journal of Theoretical Biology
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