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https://www.readbyqxmd.com/read/28724281/the-virtual-asthma-guideline-e-learning-program-learning-effectiveness-and-user-satisfaction
#1
Sung-Yoon Kang, Sae-Hoon Kim, Yong-Eun Kwon, Tae-Bum Kim, Hye-Kyung Park, Heung-Woo Park, Yoon-Seok Chang, Young-Koo Jee, Hee-Bom Moon, Kyung-Up Min, Sang-Heon Cho
Background/Aims: Effective educational tools are important for increasing adherence to asthma guidelines and clinical improvement of asthma patients. We developed a computer-based interactive education program for asthma guideline named the Virtual Learning Center for Asthma Management (VLCAM). We evaluated the usefulness of program in terms of its effects on user awareness of asthma guideline and level of satisfaction. Methods: Physicians-in-training at tertiary hospitals in Korea were enrolled in a cross-sectional questionnaire survey...
July 21, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28723943/stress-enhances-model-free-reinforcement-learning-only-after-negative-outcome
#2
Heyeon Park, Daeyeol Lee, Jeanyung Chey
Previous studies found that stress shifts behavioral control by promoting habits while decreasing goal-directed behaviors during reward-based decision-making. It is, however, unclear how stress disrupts the relative contribution of the two systems controlling reward-seeking behavior, i.e. model-free (or habit) and model-based (or goal-directed). Here, we investigated whether stress biases the contribution of model-free and model-based reinforcement learning processes differently depending on the valence of outcome, and whether stress alters the learning rate, i...
2017: PloS One
https://www.readbyqxmd.com/read/28723578/convolutional-neural-network-based-encoding-and-decoding-of-visual-object-recognition-in-space-and-time
#3
REVIEW
K Seeliger, M Fritsche, U Güçlü, S Schoenmakers, J-M Schoffelen, S E Bosch, M A J van Gerven
Representations learned by deep convolutional neural networks (CNNs) for object recognition are a widely investigated model of the processing hierarchy in the human visual system. Using functional magnetic resonance imaging, CNN representations of visual stimuli have previously been shown to correspond to processing stages in the ventral and dorsal streams of the visual system. Whether this correspondence between models and brain signals also holds for activity acquired at high temporal resolution has been explored less exhaustively...
July 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28723244/evaluation-of-the-national-health-service-nhs-direct-pilot-telehealth-program-cost-effectiveness-analysis
#4
Malcolm Clarke, Joanna Fursse, Nancy Connolly, Urvashi Sharma, Russell Jones
OBJECTIVE: To evaluate the cost-effectiveness of a pilot telehealth program applied to a wide population of patients with chronic obstructive pulmonary disease (COPD). DESIGN: Vital signs data were transmitted from the home of the patient on a daily basis using a patient monitoring system for review by community nurse to assist decisions on management. SETTING: Community services for patients diagnosed with COPD. PARTICIPANTS: Two Primary Care Trusts (PCTs) enrolled 321 patients diagnosed with COPD into the telehealth program...
July 18, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28722036/quantitative-probing-of-subtle-interactions-among-h-bonds-in-alpha-hydroxy-carboxylic-acid-complexes
#5
Quanli Gu, Peifeng Su, Yong Xia, Zhijun Yang, Carl O Trindle, Joseph L Knee
Hydrogen (H) bonds are of fundamental importance in a wide range of molecular sciences. While the study of two-center H-bonding AH is well advanced, much remains to be learned in a quantitative and definitive manner for complexes with multiple H-bonds. Exemplary cases are in the category of alpha hydroxy carboxylic acids, i.e., the complexes of glycolic acid with water and formic acid. In glycolic acid, an intramolecular H-bond forms between the carboxyl group and the alpha OH group. The alpha OH stretching frequency may be affected upon complexing with water or formic acid...
July 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28720679/potential-for-monitoring-gut-microbiota-for-diagnosing-infections-and-graft-versus-host-disease-in-cancer-and-stem-cell-transplant-patients
#6
Andrew Y Koh
BACKGROUND: Gut microbiota, the collective community of microorganisms inhabiting the intestine, have been shown to provide many beneficial functions for the host. Recent advances in next-generation sequencing and advanced molecular biology approaches have allowed researchers to identify gut microbiota signatures associated with disease processes and, in some cases, establish causality and elucidate underlying mechanisms. CONTENT: This report reviews 3 commonly used methods for studying the gut microbiota and microbiome (the collective genomes of the gut microorganisms): 16S rRNA gene sequencing, bacterial group or species-specific quantitative polymerase chain reaction (qPCR), and metagenomic shotgun sequencing (MSS)...
July 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28720404/role-of-spatial-contiguity-in-sensory-preconditioning-with-humans
#7
Charlotte Renaux, Vinca Rivière, Paul Craddock, Ralph R Miller
The present study demonstrates the contribution of spatial contiguity in the formation of associations between two neutral stimuli. Using human participants, we used visual conditioned stimuli (CSs) in a sensory preconditioning design in which simultaneous CS2-CS1 pairings and CS4-CS3 pairings were interspersed during Phase 1, followed by sequential CS1-US+ (i.e., CS1-pleasant US) and CS3-US-(-) (i.e., CS3-unpleasant US) pairings during Phase 2. The conditioned response was a shift in the gaze of the participants to the location where the US+ (i...
July 15, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28720087/resident-perceptions-of-the-impact-of-duty-hour-restrictions-on-resident-attending-interactions-an-exploratory-study
#8
Kristen A Gerjevic, Marcy E Rosenbaum, Manish Suneja
BACKGROUND: The institution of duty hour reforms by the Accreditation Council for Graduate Medical Education in 2003 has created a learning environment where residents are consistently looking for input from attending physicians with regards to balancing duty hour regulations and providing quality patient care. There is a paucity of literature regarding resident perceptions of attending physician actions or attitudes towards work hour restrictions. The purpose of this study was to identify attending physician behaviors that residents perceived as supportive or unsupportive of their compliance with duty hour regulations...
July 18, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28719661/minimizing-endpoint-variability-through-reinforcement-learning-during-reaching-movements-involving-shoulder-elbow-and-wrist
#9
David Marc Anton Mehler, Alexandra Reichenbach, Julius Klein, Jörn Diedrichsen
Reaching movements are comprised of the coordinated action across multiple joints. The human skeleton is redundant for this task because different joint configurations can lead to the same endpoint in space. How do people learn to use combinations of joints that maximize success in goal-directed motor tasks? To answer this question, we used a 3-degree-of-freedom manipulandum to measure shoulder, elbow and wrist joint movements during reaching in a plane. We tested whether a shift in the relative contribution of the wrist and elbow joints to a reaching movement could be learned by an implicit reinforcement regime...
2017: PloS One
https://www.readbyqxmd.com/read/28719601/clic-a-tool-for-expanding-biological-pathways-based-on-co-expression-across-thousands-of-datasets
#10
Yang Li, Alexis A Jourdain, Sarah E Calvo, Jun S Liu, Vamsi K Mootha
In recent years, there has been a huge rise in the number of publicly available transcriptional profiling datasets. These massive compendia comprise billions of measurements and provide a special opportunity to predict the function of unstudied genes based on co-expression to well-studied pathways. Such analyses can be very challenging, however, since biological pathways are modular and may exhibit co-expression only in specific contexts. To overcome these challenges we introduce CLIC, CLustering by Inferred Co-expression...
July 18, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28719482/teaching-incision-and-drainage-perceived-educational-value-of-abscess-models
#11
Cynthia M Adams, Lise E Nigrovic, Gavin Hayes, Peter H Weinstock, Joshua Nagler
OBJECTIVES: Incision and drainage (I&D) of skin abscesses is an important procedural skill for pediatric emergency medicine providers. Practical skills training using simulation provides an opportunity to learn and gain confidence with this invasive procedure. Our objective was to assess the perceived educational value of 2 versions of an abscess model as part of an educational workshop for teaching I&D. METHODS: A combined didactic and practical skills workshop was developed for use at 2 national conferences...
July 17, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28719054/evolutionary-cell-biology-of-proteins-from-protists-to-humans-and-plants
#12
REVIEW
Helmut Plattner
During evolution, the cell as a fine-tuned machine had to undergo permanent adjustments to match changes in its environment, while "closed for repair work" was not possible. Evolution from protists (protozoa and unicellular algae) to multicellular organisms may have occurred in basically two lineages, Unikonta and Bikonta, culminating in mammals and angiosperms (flowering plants), respectively. Unicellular models for unikont evolution are myxamoebae (Dictyostelium) and increasingly also choanoflagellates, whereas, for bikonts, ciliates are preferred models...
July 18, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28718752/the-impact-of-presentation-format-on-younger-and-older-adults-self-regulated-learning
#13
Jodi Price
Background/Study Context: Self-regulated learning involves deciding what to study and for how long. Debate surrounds whether individuals' selections are influenced more by item complexity, point values, or if instead people select in a left-to-right reading order, ignoring item complexity and value. The present study manipulated whether point values and presentation format favored selection of simple or complex Chinese-English pairs to assess the impact on younger and older adults' selection behaviors. METHODS: One hundred and five younger (Mage = 20...
July 2017: Experimental Aging Research
https://www.readbyqxmd.com/read/28717900/elements-of-program-design-in-medicare-s-value-based-and-alternative-payment-models-a-narrative-review
#14
Karen E Joynt Maddox, Aditi P Sen, Lok Wong Samson, Rachael B Zuckerman, Nancy DeLew, Arnold M Epstein
Increasing emphasis on value in health care has spurred the development of value-based and alternative payment models. Inherent in these models are choices around program scope (broad vs. narrow); selecting absolute or relative performance targets; rewarding improvement, achievement, or both; and offering penalties, rewards, or both. We examined and classified current Medicare payment models-the Hospital Readmissions Reduction Program (HRRP), Hospital Value-Based Purchasing Program (HVBP), Hospital-Acquired Conditions Reduction Program (HACRP), Medicare Advantage Quality Star Rating program, Physician Value-Based Payment Modifier (VM) and its successor, the Merit-Based Incentive Payment System (MIPS), and the Medicare Shared Savings Program (MSSP) on these elements of program design and reviewed the literature to place findings in context...
July 17, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28717555/adaptive-nonparametric-kinematic-modeling-of-concentric-tube-robots
#15
Georgios Fagogenis, Christos Bergeles, Pierre E Dupont
Concentric tube robots comprise telescopic precurved elastic tubes. The robot's tip and shape are controlled via relative tube motions, i.e. tube rotations and translations. Non-linear interactions between the tubes, e.g. friction and torsion, as well as uncertainty in the physical properties of the tubes themselves, e.g. the Young's modulus, curvature, or stiffness, hinder accurate kinematic modelling. In this paper, we present a machine-learning-based methodology for kinematic modelling of concentric tube robots and in situ model adaptation...
October 2016: Proceedings of the ... IEEE/RSJ International Conference on Intelligent Robots and Systems
https://www.readbyqxmd.com/read/28716955/acute-exercise-enhances-the-consolidation-of-fear-extinction-memory-and-reduces-conditioned-fear-relapse-in-a-sex-dependent-manner
#16
Courtney A Bouchet, Brian A Lloyd, Esteban C Loetz, Caroline E Farmer, Mykola Ostrovskyy, Natalie Haddad, Rebecca M Foright, Benjamin N Greenwood
Fear extinction-based exposure therapy is the most common behavioral therapy for anxiety and trauma-related disorders, but fear extinction memories are labile and fear tends to return even after successful extinction. The relapse of fear contributes to the poor long-term efficacy of exposure therapy. A single session of voluntary exercise can enhance the acquisition and consolidation of fear extinction in male rats, but the effects of exercise on relapse of fear after extinction are not well understood. Here, we characterized the effects of 2 h of voluntary exercise during the consolidation phase of contextual or auditory fear extinction learning on long-term fear extinction memory and renewal in adult, male and female, Long-Evans rats...
August 2017: Learning & Memory
https://www.readbyqxmd.com/read/28716952/differential-involvement-of-the-medial-prefrontal-cortex-across-variants-of-contextual-fear-conditioning
#17
Nicholas A Heroux, Patrese A Robinson-Drummer, Hollie R Sanders, Jeffrey B Rosen, Mark E Stanton
The context preexposure facilitation effect (CPFE) is a contextual fear conditioning paradigm in which learning about the context, acquiring the context-shock association, and retrieving/expressing contextual fear are temporally dissociated into three distinct phases. In contrast, learning about the context and the context-shock association happens concurrently in standard contextual fear conditioning (sCFC). By infusing the GABAA receptor agonist muscimol into medial prefrontal cortex (mPFC) in adolescent Long-Evans rats, the current set of experiments examined the functional role of the mPFC in each phase of the CPFE and sCFC...
August 2017: Learning & Memory
https://www.readbyqxmd.com/read/28716716/fiber-tractography-using-machine-learning
#18
Peter F Neher, Marc-Alexandre Côté, Jean-Christophe Houde, Maxime Descoteaux, Klaus H Maier-Hein
We present a fiber tractography approach based on a random forest classification and voting process, guiding each step of the streamline progression by directly processing raw diffusion-weighted signal intensities. For comparison to the state-of-the-art, i.e. tractography pipelines that rely on mathematical modeling, we performed a quantitative and qualitative evaluation with multiple phantom and in vivo experiments, including a comparison to the 96 submissions of the ISMRM tractography challenge 2015. The results demonstrate the vast potential of machine learning for fiber tractography...
July 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28716712/effects-of-chemogenetic-excitation-or-inhibition-of-the-ventrolateral-periaqueductal-gray-on-the-acquisition-and-extinction-of-pavlovian-fear-conditioning
#19
Carolyn Arico, Elena E Bagley, Pascal Carrive, Neda Assareh, Gavan P McNally
The midbrain periaqueductal gray (PAG) has been implicated in the generation and transmission of a prediction error signal that instructs amygdala-based fear and extinction learning. However, the PAG also plays a key role in the expression of conditioned fear responses. The evidence for a role of the PAG in fear learning and extinction learning has been obtained almost exclusively using PAG-dependent fear responses. It is less clear whether the PAG regulates fear learning when other measures of learned fear are used...
July 14, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28716344/what-global-maternal-and-child-nutrition-can-learn-from-animal-science
#20
Cesar G Victora, Reynaldo Martorell, Sindura Ganapathi, R Dean Boyd, Dale E Bauman, Jack Odle
No abstract text is available yet for this article.
August 2017: Lancet Global Health
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