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https://www.readbyqxmd.com/read/28918312/-reinforcement-learning-to-forage-optimally
#1
REVIEW
Nils Kolling, Thomas Akam
Foraging effectively is critical to the survival of all animals and this imperative is thought to have profoundly shaped brain evolution. Decisions made by foraging animals often approximate optimal strategies, but the learning and decision mechanisms generating these choices remain poorly understood. Recent work with laboratory foraging tasks in humans suggest their behaviour is poorly explained by model-free reinforcement learning, with simple heuristic strategies better describing behaviour in some tasks, and in others evidence of prospective prediction of the future state of the environment...
September 14, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28917155/crossing-the-gender-boundaries-the-gender-experiences-of-male-nursing-students-in-initial-nursing-clinical-practice-in-taiwan
#2
Hsing-Yuan Liu, Yun Ling Li
BACKGROUND: The initial nursing clinical practice is the necessary practicum required for nursing students. Because of the changing learning style, many of them are under great pressure for environmental change and therefore their daily routine is severe affected. Interacting directly with patients in a female-dominated occupation, along with the general gender stereotypes, the impact is especially significant to male nursing students than to female nursing students. PURPOSE: The purpose of this preliminary qualitative study is to explore the gendered experiences of male nursing students during their first initial nursing clinical practice...
September 1, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28917136/nursing-students-socialisation-into-practical-skills
#3
Mona Ewertsson, Sangeeta Bagga-Gupta, Karin Blomberg
Socialisation is a significant factor that shapes nursing students' learning in clinical settings. Little is known about the ways in which students learn practical skills during their clinical practice and how they are socialised into these skills. This knowledge is important for creating an optimal environment for ensuring a high standard of care and patient safety. This study aims to address this knowledge gap. An ethnographic approach was used. Data were collected by participant observations during nursing students' clinical practice in an emergency department at a university hospital in Sweden, and during informal conversations with students and their preceptors...
September 5, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28917001/a-neural-network-model-for-familiarity-and-context-learning-during-honeybee-foraging-flights
#4
Jurek Müller, Martin Nawrot, Randolf Menzel, Tim Landgraf
How complex is the memory structure that honeybees use to navigate? Recently, an insect-inspired parsimonious spiking neural network model was proposed that enabled simulated ground-moving agents to follow learned routes. We adapted this model to flying insects and evaluate the route following performance in three different worlds with gradually decreasing object density. In addition, we propose an extension to the model to enable the model to associate sensory input with a behavioral context, such as foraging or homing...
September 15, 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/28916631/experience-during-early-adulthood-shapes-the-learning-capacities-and-the-number-of-synaptic-boutons-in-the-mushroom-bodies-of-honey-bees-apis-mellifera
#5
Amélie Cabirol, Rufus Brooks, Claudia Groh, Andrew B Barron, Jean-Marc Devaud
The honey bee mushroom bodies (MBs) are brain centers required for specific learning tasks. Here, we show that environmental conditions experienced as young adults affect the maturation of MB neuropil and performance in a MB-dependent learning task. Specifically, olfactory reversal learning was selectively impaired following early exposure to an impoverished environment lacking some of the sensory and social interactions present in the hive. In parallel, the overall number of synaptic boutons increased within the MB olfactory neuropil, whose volume remained unaffected...
October 2017: Learning & Memory
https://www.readbyqxmd.com/read/28916581/optimising-impact-and-sustainability-a-qualitative-process-evaluation-of-a-complex-intervention-targeted-at-compassionate-care
#6
Jackie Bridges, Carl May, Alison Fuller, Peter Griffiths, Wendy Wigley, Lisa Gould, Hannah Barker, Paula Libberton
BACKGROUND: Despite concerns about the degree of compassion in contemporary healthcare, there is a dearth of evidence for health service managers about how to promote compassionate healthcare. This paper reports on the implementation of the Creating Learning Environments for Compassionate Care (CLECC) intervention by four hospital ward nursing teams. CLECC is a workplace educational intervention focused on developing sustainable leadership and work-team practices designed to support team relational capacity and compassionate care delivery...
September 15, 2017: BMJ Quality & Safety
https://www.readbyqxmd.com/read/28915266/evaluation-of-a-conceptual-framework-for-predicting-navigation-performance-in-virtual-reality
#7
Jascha Grübel, Tyler Thrash, Christoph Hölscher, Victor R Schinazi
Previous research in spatial cognition has often relied on simple spatial tasks in static environments in order to draw inferences regarding navigation performance. These tasks are typically divided into categories (e.g., egocentric or allocentric) that reflect different two-systems theories. Unfortunately, this two-systems approach has been insufficient for reliably predicting navigation performance in virtual reality (VR). In the present experiment, participants were asked to learn and navigate towards goal locations in a virtual city and then perform eight simple spatial tasks in a separate environment...
2017: PloS One
https://www.readbyqxmd.com/read/28914990/simulating-the-multi-disciplinary-care-team-approach-enhancing-student-understanding-of-anatomy-through-an-ultrasound-anchored-interprofessional-session
#8
Marianne T Luetmer, Beth A Cloud, James W Youdas, Wojciech Pawlina, Nirusha Lachman
Quality of healthcare delivery is dependent on collaboration between professional disciplines. Integrating opportunities for interprofessional learning in health science education programs prepares future clinicians to function as effective members of a multi-disciplinary care team. This study aimed to create a modified team-based learning (TBL) environment utilizing ultrasound technology during an interprofessional learning activity to enhance musculoskeletal anatomy knowledge of first year medical (MD) and physical therapy (PT) students...
September 15, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28914621/ce-original-research-exploring-how-nursing-schools-handle-student-errors-and-near-misses
#9
Joanne Disch, Jane Barnsteiner, Susan Connor, Fabiana Brogren
This study, part 1 of a two-part series, reports survey findings that indicate areas for improvement. ABSTRACT: Background: Little attention has been paid to how nursing students learn about quality and safety, and to the tools and policies that guide nursing schools in helping students respond to errors and near misses. PURPOSE: This study sought to determine whether prelicensure nursing programs have a policy for reporting and following up on student clinical errors and near misses, a tool for such reporting, a tool or process (or both) for identifying trends, strategies for follow-up with students after errors and near misses, and strategies for follow-up with clinical agencies and individual faculty members...
September 13, 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28914387/joint-stimulus-control-in-a-temporal-discrimination-task
#10
Carlos Pinto, Inês Fortes, Armando Machado
The ability to identify stimuli that signal important events is fundamental for an organism to adapt to its environment. In the present paper, we investigated how more than one stimulus could be used jointly to learn a temporal discrimination task. Ten pigeons were exposed to a symbolic matching-to-sample procedure with three durations as samples (2, 6, and 18 s of keylight) and two colors as comparisons (red and green hues). A 30-s intertrial interval (ITI), illuminated with a houselight, separated the trials...
September 15, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28913871/experimental-asbestos-studies-in-the-uk-1912-1950
#11
Morris Greenberg
The asbestos industry originated in the UK in the 1870s. By 1898, asbestos had many applications and was reported to be one of the four leading causes of severe occupational disease. In 1912, the UK government sponsored an experimental study that reported that exposure to asbestos produced no more than a modicum of pulmonary fibrosis in guinea pigs. In the 1930s, the newly established Medical Research Council, with assistance from industry, sponsored a study of the effects of exposing animals to asbestos by injection (intratracheal and subcutaneous) and by inhalation in the factory environment...
September 14, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28912796/a-low-cost-imaging-method-for-the-temporal-and-spatial-colorimetric-detection-of-free-amines-on-maize-root-surfaces
#12
Truc H Doan, Tu A Doan, Michael J Kangas, AdreAnna E Ernest, Danny Tran, Christina L Wilson, Andrea E Holmes, Erin L Doyle, Tessa L Durham Brooks
Plant root exudates are important mediators in the interactions that occur between plants and microorganisms in the soil, yet much remains to be learned about spatial and temporal variation in their production. This work outlines a method utilizing a novel colorimetric paper to detect spatial and temporal changes in the production of nitrogen-containing compounds on the root surface. While existing methods have made it possible to conduct detailed analysis of root exudate composition, relatively less is known about where in the root system exudates are produced and how this localization changes as the root grows...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28911323/exploring-how-different-modes-of-governance-act-across-health-system-levels-to-influence-primary-healthcare-facility-managers-use-of-information-in-decision-making-experience-from-cape-town-south-africa
#13
Vera Scott, Lucy Gilson
BACKGROUND: Governance, which includes decision-making at all levels of the health system, and information have been identified as key, interacting levers of health system strengthening. However there is an extensive literature detailing the challenges of supporting health managers to use formal information from health information systems (HISs) in their decision-making. While health information needs differ across levels of the health system there has been surprisingly little empirical work considering what information is actually used by primary healthcare facility managers in managing, and making decisions about, service delivery...
September 15, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28910624/a-sensorimotor-circuit-in-mouse-cortex-for-visual-flow-predictions
#14
Marcus Leinweber, Daniel R Ward, Jan M Sobczak, Alexander Attinger, Georg B Keller
The cortex is organized as a hierarchical processing structure. Feedback from higher levels of the hierarchy, known as top-down signals, have been shown to be involved in attentional and contextual modulation of sensory responses. Here we argue that top-down input to the primary visual cortex (V1) from A24b and the adjacent secondary motor cortex (M2) signals a prediction of visual flow based on motor output. A24b/M2 sends a dense and topographically organized projection to V1 that targets most neurons in layer 2/3...
September 13, 2017: Neuron
https://www.readbyqxmd.com/read/28910466/surgical-instrument-sets-for-special-operations-expeditionary-surgical-teams
#15
Diane F Hale, Justin C Sexton, Linda C Benavides, Jerry M Benavides, Jonathan B Lundy
BACKGROUND: The deployment of surgical assets has been driven by mission demands throughout years of military operations in Iraq and Afghanistan. The transition to the highly expeditious Golden Hour Offset Surgical Transport Team (GHOST- T) now offers highly mobile surgical assets in nontraditional operating rooms; the content of the surgical instrument sets has also transformed to accommodate this change. METHODS: The 102nd Forward Surgical Team (FST) was attached to Special Operations assigned to southern Afghanistan from June 2015 to March 2016...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28906244/hearing-aid-use-and-mild-hearing-impairment-learnings-from-big-data
#16
Barbra H B Timmer, Louise Hickson, Stefan Launer
BACKGROUND: Previous research, mostly reliant on self-reports, has indicated that hearing aid (HA) use is related to the degree of hearing impairment (HI). No large-scale investigation of the relationship between data-logged HA use and HI has been conducted to date. PURPOSE: This study aimed to investigate if objective measures of overall daily HA use and HA use in various listening environments are different for adults with mild HI compared to adults with moderate HI...
September 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28905685/helping-coaches-apply-the-principles-of-representative-learning-design-validation-of-a-tennis-specific-practice-assessment-tool
#17
Lyndon Krause, Damian Farrow, Machar Reid, Tim Buszard, Ross Pinder
Representative Learning Design (RLD) is a framework for assessing the degree to which experimental or practice tasks simulate key aspects of specific performance environments (i.e. competition). The key premise being that when practice replicates the performance environment, skills are more likely to transfer. In applied situations, however, there is currently no simple or quick method for coaches to assess the key concepts of RLD (e.g. during on-court tasks). The aim of this study was to develop a tool for coaches to efficiently assess practice task design in tennis...
September 14, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28905138/the-effectiveness-of-a-knowledge-translation-cognitive-educational-intervention-for-family-members-of-persons-coping-with-severe-mental-illness
#18
P Weiss, N Hadas-Lidor, A Weizman, D Sachs
Keshet, a course for family members of persons' coping with mental illness, was developed to enhance positive family cognitive communication skills. Improving communication with the use of mediation techniques, primarily used by therapists, creates a learning environment viewed as a strategy of Knowledge Translation. To examine the effectiveness of Keshet in improving attitudes, problem solving, communication skills and attenuation of burden a quasi-experimental research design was applied with study and control condition...
September 13, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/28904645/fitness-of-antibiotic-resistant-bacteria-in-the-environment-a-laboratory-activity
#19
Massimiliano Marvasi, Manika Choudhury, Nimisha Binesh Vala, Max Teplitski
In this laboratory experiment, we propose an opportunity for students to broaden their understanding of the ecology of antibiotic-resistant and sensitive waterborne bacteria. Antibiotics can be found in rivers or soil as a consequence of agricultural practices or as a result of human use. Concentrations of antibiotics in the environment may range from a few ng to μg L(-1). Such concentrations can affect the selection and fitness of resistant bacteria. In this laboratory activity, students learn how to set up a fitness experiment by using an isogenic pair of antibiotic-resistant and sensitive bacteria in the presence or absence of selective pressure...
2017: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28903723/domains-associated-with-successful-quality-improvement-in-healthcare-a-nationwide-case-study
#20
Aleidis Skard Brandrud, Bjørnar Nyen, Per Hjortdahl, Leiv Sandvik, Gro Sævil Helljesen Haldorsen, Maria Bergli, Eugene C Nelson, Michael Bretthauer
BACKGROUND: There is a distinct difference between what we know and what we do in healthcare: a gap that is impairing the quality of the care and increasing the costs. Quality improvement efforts have been made worldwide by learning collaboratives, based on recognized continual improvement theory with limited scientific evidence. The present study of 132 quality improvement projects in Norway explores the conditions for improvement from the perspectives of the frontline healthcare professionals, and evaluates the effectiveness of the continual improvement method...
September 13, 2017: BMC Health Services Research
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