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https://www.readbyqxmd.com/read/28641115/feature-integration-drives-probabilistic-behavior-in-the-drosophila-escape-response
#1
Catherine R von Reyn, Aljoscha Nern, W Ryan Williamson, Patrick Breads, Ming Wu, Shigehiro Namiki, Gwyneth M Card
Animals rely on dedicated sensory circuits to extract and encode environmental features. How individual neurons integrate and translate these features into behavioral responses remains a major question. Here, we identify a visual projection neuron type that conveys predator approach information to the Drosophila giant fiber (GF) escape circuit. Genetic removal of this input during looming stimuli reveals that it encodes angular expansion velocity, whereas other input cell type(s) encode angular size. Motor program selection and timing emerge from linear integration of these two features within the GF...
June 21, 2017: Neuron
https://www.readbyqxmd.com/read/28641050/thrifty-females-frisky-males-winter-energetics-of-hibernating-bats-from-a-cold-climate
#2
Zenon J Czenze, Kristin A Jonasson, Craig K R Willis
Mammalian hibernation consists of energy-saving torpor bouts (periods of controlled reduction in body temperature [Tb]) interspersed with brief arousals to normothermic Tb. Frequency and duration of torpor bouts and arousals can affect winter survival and are thought to be influenced by an optimization balancing the energetic benefits of prolonged torpor against the physiological and ecological costs (e.g., accumulation of metabolic wastes). Female little brown bats (Myotis lucifugus) spend their fat reserves more slowly than males during winter, presumably so they can emerge from hibernation in good condition to initiate pregnancy...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28640889/contrasting-academic-and-lay-press-print-coverage-of-the-2013-2016-ebola-virus-disease-outbreak
#3
Mark D Kieh, Elim M Cho, Ian A Myles
Under a traditional paradigm, only those with the expected background knowledge consume academic literature. The lay press, as well as government and non-government agencies, play a complementary role of extracting findings of high interest or importance and translating them for general viewing. The need for accurate reporting and public advising is paramount when attempting to tackle epidemic outbreaks through behavior change. Yet, public trust in media outlets is at a historic low. The Crisis and Emergency Risk Communication (CERC) model for media reporting on public health emergencies was established in 2005 and has subsequently been used to analyze media reporting on outbreaks of influenza and measles as well as smoking habits and medication compliance...
2017: PloS One
https://www.readbyqxmd.com/read/28637291/pediatric-to-adult-care-transition-perspectives-of-young-adults-with-sickle-cell-disease
#4
Jerlym S Porter, Kimberly M Wesley, Mimi S Zhao, Rebecca J Rupff, Jane S Hankins
The aim of this study was to explore perspectives of transition and transition readiness of young adult patients (YAs) with sickle cell disease (SCD) who have transitioned to adult health care. In all, 19 YAs with SCD (ages 18-30 years) participated in one of three focus groups and completed a brief questionnaire about transition topics. Transcripts were coded and emergent themes were examined using the social-ecological model of adolescent and young adult readiness for transition (SMART). Themes were consistent with most SMART components...
June 15, 2017: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/28637128/maximizing-gait-and-balance-behaviors-and-decision-making-processes-of-persons-with-multiple-sclerosis-and-physical-therapists
#5
Elissa Held Bradford, Marcia Finlayson, Andrea White Gorman, Joanne Wagner
PURPOSE: To describe the behavioral decisions used by persons with multiple sclerosis (MS) and physical therapists to maximize gait and balance following outpatient physical therapy. METHODS: A multi-method case series with seven matched pairs (persons with MS-physical therapists). Quota sampling maximized variability among persons with MS (disease steps score range 3-6). Three of the four physical therapists were MS or neurology certified. Persons with MS completed a phone survey, follow-up interview, and standardized questionnaires...
February 7, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28636926/enhanced-human-bone-marrow-mesenchymal-stromal-cell-adhesion-on-scaffolds-promotes-cell-survival-and-bone-formation
#6
Miryam Mebarki, Laura Coquelin, Pierre Layrolle, Séverine Battaglia, Marine Tossou, Philippe Hernigou, Hélène Rouard, Nathalie Chevallier
In order to induce an efficient bone formation with human bone marrow mesenchymal stromal cells (hBMSC) associated to a scaffold, it is crucial to determine the key points of the hBMSC action after in vivo transplantation as well as the appropriate features of a scaffold. To this aim we compared the hBMSC behavior when grafted onto two biomaterials allowing different bone potential in vivo. The cancellous devitalized Tutoplast®-processed bone (TPB) and the synthetic hydroxyapatite/β-tricalcium-phosphate (HA/βTCP) which give at 6 weeks 100% and 50% of bone formation respectively...
June 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28636611/unmanned-aircraft-systems-as-a-new-source-of-disturbance-for-wildlife-a-systematic-review
#7
Margarita Mulero-Pázmány, Susanne Jenni-Eiermann, Nicolas Strebel, Thomas Sattler, Juan José Negro, Zulima Tablado
The use of small Unmanned Aircraft Systems (UAS; also known as "drones") for professional and personal-leisure use is increasing enormously. UAS operate at low altitudes (<500 m) and in any terrain, thus they are susceptible to interact with local fauna, generating a new type of anthropogenic disturbance that has not been systematically evaluated. To address this gap, we performed a review of the existent literature about animals' responses to UAS flights and conducted a pooled analysis of the data to determine the probability and intensity of the disturbance, and to identify the factors influencing animals' reactions towards the small aircraft...
2017: PloS One
https://www.readbyqxmd.com/read/28636424/fluid-shear-stress-regulates-hepg2-cell-migration-though-time-dependent-integrin-signaling-cascade
#8
Hongchi Yu, Yang Shen, Jingsi Jin, Yingying Zhang, Tang Feng, Xiaoheng Liu
Hepatocellular carcinoma (HCC) is a subtype of malignant liver cancer with poor prognosis and limited treatment options. It is noteworthy that mechanical forces in tumor microenvironment play a pivotal role in mediating the behaviors and functions of tumor cells. As an instrumental type of mechanical forces in vivo, fluid shear stress (FSS) has been reported having potent physiologic and pathologic effects on cancer progression. However, the time-dependent mechanochemical transduction in HCC induced by FSS remains unclear...
June 21, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28635122/sketching-the-invisible-to-predict-the-visible-from-drawing-to-modeling-in-chemistry
#9
Melanie M Cooper, Mike Stieff, Dane DeSutter
Sketching as a scientific practice goes beyond the simple act of inscribing diagrams onto paper. Scientists produce a wide range of representations through sketching, as it is tightly coupled to model-based reasoning. Chemists in particular make extensive use of sketches to reason about chemical phenomena and to communicate their ideas. However, the chemical sciences have a unique problem in that chemists deal with the unseen world of the atomic-molecular level. Using sketches, chemists strive to develop causal mechanisms that emerge from the structure and behavior of molecular-level entities, to explain observations of the macroscopic visible world...
June 21, 2017: Topics in Cognitive Science
https://www.readbyqxmd.com/read/28634001/the-effect-of-preoperative-cognitive-behavior-and-exercise-therapy-for-patient-with-implanted-lvad-in-korea-case-presentation
#10
Yong Gon Seo, Won Hah Park, Eun Seok Jeon, Ji Dong Sung, Mi Ja Jang
Left ventricular assist devices (LVADs) are used in patients with progressive heart failure symptoms to provide circulatory support. Patients with LVADs are referred to inpatient cardiac rehabilitation to prevent postoperative complications and improve aerobic capacity and quality of life (QOL). Preoperative exercise therapy for cardiac patients is an emerging treatment modality, and several studies have reported that it improves postoperative outcomes such as length of hospital stay and postoperative complications...
June 17, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28633891/aids-avian-flu-sars-mers-ebola-zika%C3%A2-what-next
#11
REVIEW
Leslie A Reperant, Albert D M E Osterhaus
Emerging infections have threatened humanity since times immemorial. The dramatic anthropogenic, behavioral and social changes that have affected humanity and the environment in the past century have accelerated the intrusion of novel pathogens into the global human population, sometimes with devastating consequences. The AIDS and influenza pandemics have claimed and will continue to claim millions of lives. The recent SARS and Ebola epidemics have threatened populations across borders. The emergence of MERS may well be warning signals of a nascent pandemic threat, while the potential for geographical spread of vector-borne diseases, such as Zika, but also Dengue and Chikungunya is unprecedented...
June 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28633048/affective-traits-and-history-of-depression-are-related-to-ventral-striatum-connectivity
#12
Sophie R DelDonno, Lisanne M Jenkins, Natania A Crane, Robin Nusslock, Kelly A Ryan, Stewart A Shankman, K Luan Phan, Scott A Langenecker
INTRODUCTION: Studying remitted Major Depressive Disorder (rMDD) facilitates a better understanding of neural mechanisms for risk, given that confounding effects of active symptoms are removed. Disrupted functional connectivity has been reported in multiple networks in MDD. However, no study to date of rMDD has specifically examined connectivity of the ventral striatum (VS), a region highly implicated in reward and motivation. We investigated functional connectivity of the VS in individuals with and without a history of MDD, and in relation to affective personality traits...
June 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28632736/from-the-motor-cortex-to-the-movement-and-back-again
#13
Wondimu W Teka, Khaldoun C Hamade, William H Barnett, Taegyo Kim, Sergey N Markin, Ilya A Rybak, Yaroslav I Molkov
The motor cortex controls motor behaviors by generating movement-specific signals and transmitting them through spinal cord circuits and motoneurons to the muscles. Precise and well-coordinated muscle activation patterns are necessary for accurate movement execution. Therefore, the activity of cortical neurons should correlate with movement parameters. To investigate the specifics of such correlations among activities of the motor cortex, spinal cord network and muscles, we developed a model for neural control of goal-directed reaching movements that simulates the entire pathway from the motor cortex through spinal cord circuits to the muscles controlling arm movements...
2017: PloS One
https://www.readbyqxmd.com/read/28631578/the-journey-to-autism-insights-from-neuroimaging-studies-of-infants-and-toddlers
#14
Jason J Wolff, Suma Jacob, Jed T Elison
By definition, autism spectrum disorder (ASD) is a neurodevelopmental disorder that emerges during early childhood. It is during this time that infants and toddlers transition from appearing typical across multiple domains to exhibiting the behavioral phenotype of ASD. Neuroimaging studies focused on this period of development have provided crucial knowledge pertaining to this process, including possible mechanisms underlying pathogenesis of the disorder and offering the possibility of prodromal or presymptomatic prediction of risk...
June 20, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28630658/evidence-of-mitochondrial-dysfunction-in-autism-biochemical-links-genetic-based-associations-and-non-energy-related-mechanisms
#15
REVIEW
Keren K Griffiths, Richard J Levy
Autism spectrum disorder (ASD), the fastest growing developmental disability in the United States, represents a group of neurodevelopmental disorders characterized by impaired social interaction and communication as well as restricted and repetitive behavior. The underlying cause of autism is unknown and therapy is currently limited to targeting behavioral abnormalities. Emerging studies suggest a link between mitochondrial dysfunction and ASD. Here, we review the evidence demonstrating this potential connection...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#16
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28630533/smoke-screen-the-globalization-of-production-transnational-lobbying-and-the-international-political-economy-of-plain-tobacco-packaging
#17
Louise Curran, Jappe Eckhardt
In 2012 Australia became the first country in the world to introduce plain tobacco packaging in an effort to reduce tobacco consumption. This move was vehemently opposed by the tobacco industry, which challenged it on several levels: nationally, bilaterally and multilaterally at the World Trade Organization (WTO). The political behavior of the tobacco companies in this case is puzzling both in terms of scale, operating at multiple levels at the same time and in terms of the countries mobilized in their defence...
2017: Rev Int Polit Econ
https://www.readbyqxmd.com/read/28630488/initial-pseudo-steady-state-asymptotic-kpz-universality-in-semiconductor-on-polymer-deposition
#18
Renan A L Almeida, Sukarno O Ferreira, Isnard Ferraz, Tiago J Oliveira
The Kardar-Parisi-Zhang (KPZ) class is a paradigmatic example of universality in nonequilibrium phenomena, but clear experimental evidences of asymptotic 2D-KPZ statistics are still very rare, and far less understanding stems from its short-time behavior. We tackle such issues by analyzing surface fluctuations of CdTe films deposited on polymeric substrates, based on a huge spatio-temporal surface sampling acquired through atomic force microscopy. A pseudo-steady state (where average surface roughness and spatial correlations stay constant in time) is observed at initial times, persisting up to deposition of ~10(4) monolayers...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629599/moral-learning-current-and-future-directions
#19
EDITORIAL
Fiery Cushman, Victor Kumar, Peter Railton
The past 15years occasioned an extraordinary blossoming of research into the cognitive and affective mechanisms that support moral judgment and behavior. This growth in our understanding of moral mechanisms overshadowed a crucial and complementary question, however: How are they learned? As this special issue of the journal Cognition attests, a new crop of research into moral learning has now firmly taken root. This new literature draws on recent advances in formal methods developed in other domains, such as Bayesian inference, reinforcement learning and other machine learning techniques...
June 16, 2017: Cognition
https://www.readbyqxmd.com/read/28629057/a-facile-strategy-for-fabrication-of-aggregation-induced-emission-aie-active-fluorescent-polymeric-nanoparticles-fpns-via-post-modification-of-synthetic-polymers-and-their-cell-imaging
#20
Yanzhu Liu, Liucheng Mao, Xinhua Liu, Meiying Liu, Dazhuang Xu, Ruming Jiang, Fengjie Deng, Yongxiu Li, Xiaoyong Zhang, Yen Wei
Aggregation-induced emission (AIE) active fluorescent polymeric nanoparticles (FPNs) have recently emerged as the promising nanoprobes for biological imaging for their intensive fluorescence, good photostability, desirable biocompatibility and well designability of structure and optical properties. Herein, we proposed a novel strategy for fabrication of AIE-active FPNs through the post modification of synthetic copolymers to form Schiff base. The size, morphology, optical properties and biocompatibility as well as cell uptake behavior were evaluated in detailed...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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