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https://www.readbyqxmd.com/read/28102509/mice-optimize-timed-decisions-about-probabilistic-outcomes-under-deadlines
#1
Ezgi Gür, Fuat Balcı
Optimal performance in temporal decisions requires the integration of timing uncertainty with environmental statistics such as probability or cost functions. Reward maximization under response deadlines constitutes one of the most stringent examples of these problems. The current study investigated whether and how mice can optimize their timing behavior in a complex experimental setting under a response deadline in which reward maximization required the integration of timing uncertainty with a geometrically increasing probability/decreasing cost function...
January 19, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28099777/positive-selection-on-sperm-ion-channels-in-a-brooding-brittle-star-consequence-of-life-history-traits-evolution
#2
A A-T Weber, L Abi-Rached, N Galtier, A Bernard, J I Montoya-Burgos, A Chenuil
Closely related species are key models to investigate mechanisms leading to reproductive isolation and early stages of diversification, also at the genomic level. The brittle star cryptic species complex Ophioderma longicauda encompasses the sympatric broadcast spawning species C3 and the internal brooding species C5. Here we used de novo transcriptome sequencing and assembly in two closely related species displaying contrasting reproductive modes to compare their genetic diversity and to investigate the role of natural selection in reproductive isolation...
January 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28097613/stakeholder-contributions-to-assessment-monitoring-and-conservation-of-threatened-species-black-skimmer-and-red-knot-as-case-studies
#3
Joanna Burger, Michael Gochfeld, Larry Niles, Nellie Tsipoura, David Mizrahi, Amanda Dey, Christian Jeitner, Taryn Pittfield
Stakeholder contributions to conservation projects often occur during the problem formulation stage, yet the role of stakeholders throughout the process is seldom considered. We examine the diversity of state and federal agencies, conservation organizations, other non-governmental organizations, environmental justice communities, consultants, industry, and the general public in the conservation of red knot (Calidris canutus rufa) and black skimmer (Rynchops niger) in New Jersey. We suggest that (1) governmental agencies provide the legal, regulatory, and management framework, but it is often the universities, conservation organizations, consultants, and the public that conduct the research and perform activities that lead to increased research and conservation efforts; (2) departments within agencies may have conflicting mandates, making it difficult to resolve differences in actions; (3) there is often conflict among and within state agencies and conservation organizations about roles and priorities; and (4) the role of the public is critical to ongoing research and conservation efforts...
February 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28078389/responses-of-a-federally-endangered-songbird-to-understory-thinning-in-oak-juniper-woodlands
#4
Ashley M Long, Mike E Marshall, Michael L Morrison, K Brian Hays, Shannon L Farrell
Wildlife conservation and management on military lands must be accomplished in the context of military readiness, which often includes ground-based training that is perceived to conflict with wildlife needs and environmental regulations. From 2008‒2012, we examined territory density, pairing success, and fledging success of the federally endangered golden-cheeked warbler (Setophaga chrysoparia; hereafter warbler) in relation to removal of small-diameter trees from the understory of mature oak-juniper (Quercus-Juniperus) woodland at the 87,890 ha Fort Hood Military Reservation in central Texas...
January 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28073701/effect-of-asthma-therapies-on-the-natural-course-of-asthma
#5
REVIEW
Elissa M Abrams, Stanley J Szefler, Allan B Becker
OBJECTIVE: To provide an evidence-based review on the role of pharmacologic (inhaled corticosteroids, leukotriene receptor antagonists, biologic therapies, aeroallergen immunotherapy) and nonpharmacologic therapies (environmental modifications, microbiome) in secondary and tertiary asthma prevention. DATA SOURCES: A PubMed search for English-language publications regarding asthma and secondary or tertiary prevention was performed. Some articles cited in selected studies were also considered for inclusion in this review...
December 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28069859/global-health-a-pivotal-moment-of-opportunity-and-peril
#6
Lawrence O Gostin, Eric A Friedman
A growing tide of populism in Europe and the United States, combined with other factors, threatens the solidarity upon which the global health movement is based. The highest-profile example of the turn toward populism is US president-elect Donald Trump, whose proposals would redefine US engagement in global health, development, and environmental efforts. In this challenging landscape, three influential global institutions-the United Nations, the World Health Organization, and the World Bank-are undergoing leadership transitions...
January 1, 2017: Health Affairs
https://www.readbyqxmd.com/read/28060197/identical-twins-discordant-for-metopic-craniosynostosis-evidence-of-epigenetic-influences
#7
Suresh N Magge, Kendall Snyder, Aparna Sajja, Tiffani A DeFreitas, Sean E Hofherr, Richard E Broth, Robert F Keating, Gary F Rogers
Craniosynostosis, or premature fusion of the cranial sutures, occurs in approximately 1 in 2500 live births. The genetic causes and molecular basis of these disorders have greatly expanded over the last 2 decades, with numerous causative and contributory mutations having been identified. The role of fibroblast growth factor receptor (FGFR) mutations in the etiology of certain eponymous forms of craniosynostosis is now well elucidated; the most common syndromes associated with craniosynostosis are Pfeifer (FGFR1, FGFR2), Apert (FGFR2), Crouzon (FGFR2), Saethre-Chotzen (TWIST1), Jackson-Weiss (FGFR2), Greig (GL13), and Muenke (FGFR3) syndromes...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28057877/previous-miscarriages-and-gli2-are-associated-with-anorectal-malformations-in-offspring
#8
Romy van de Putte, Charlotte H W Wijers, Ivo de Blaauw, Carlo L M Marcelis, Cornelius E J Sloots, Alice S Brooks, Paul M A Broens, Nel Roeleveld, Loes F M van der Zanden, Iris A L M van Rooij
STUDY QUESTION: Are anorectal malformations (ARMs) associated with previous miscarriages or single nucleotide polymorphisms (SNPs) in the Bone Morphogenetic Protein 4 (BMP4) and GLI family zinc finger 2 (GLI2) genes? SUMMARY ANSWER: The SNP rs3738880 in GLI2 and miscarriages were associated with ARM, especially in patients with multiple congenital anomalies (MCA). WHAT IS KNOWN ALREADY: ARM are one of the most common birth defects of the gastrointestinal tract...
January 5, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28049558/neonatal-handling-enduringly-decreases-anxiety-and-stress-responses-and-reduces-hippocampus-and-amygdala-volume-in-a-genetic-model-of-differential-anxiety-behavioral-volumetric-associations-in-the-roman-rat-strains
#9
Cristóbal Río-Álamos, Ignasi Oliveras, Maria Antonietta Piludu, Cristina Gerbolés, Toni Cañete, Gloria Blázquez, Silvia Lope-Piedrafita, Esther Martínez-Membrives, Rafael Torrubia, Adolf Tobeña, Alberto Fernández-Teruel
The hippocampus and amygdala have been proposed as key neural structures related to anxiety. A more active hippocampus/amygdala system has been related to greater anxious responses in situations involving conflict/novelty. The Roman Low- (RLA) and High-avoidance (RHA) rat lines/strains constitute a genetic model of differential anxiety. Relative to RHA rats, RLA rats exhibit enhanced anxiety/fearfulness, augmented hippocampal/amygdala c-Fos expression following exposure to novelty/conflict, increased hippocampal neuronal density and higher endocrine responses to stress...
December 31, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28049354/the-life-course-model-as-a-framework-for-post-conflict-health-analysis-reflections-on-the-gulf-war-critical-period
#10
Charles W Cange
In the Kuwait context, from January 1991 to December 1991, there were a series of chemical and psychological Gulf War-era exposures that left persistent, long-term damage. Extreme stress from a critical event speeds up the usual disease latency period, and may be part of a synergistic effect that leads to higher disease rates over a shorter period of time. I am interested in the impact of armed conflict on health outcomes over the life course in Kuwait, and particularly the pathways through which armed conflict causes changes in health on a population level...
January 3, 2017: Medicine, Conflict, and Survival
https://www.readbyqxmd.com/read/28048961/resource-availability-drives-mating-role-selection-in-a-simultaneous-hermaphrodite-aplysia-californica
#11
Kyle T David, Phillip Tanabe, Lynne A Fieber
In simultaneous hermaphrodites, a clear conflict exists between sperm donor and sperm recipient roles, and how such conflict is mediated remains up for debate. This study observed and recorded mating role selection as a function of resource availability in the simultaneous hermaphrodite Aplysia californica. When food was plentiful, animals assumed both sperm donor and recipient roles at relatively even frequency. However, when half of the mating pairs were placed on restricted diets, food-limited animals assumed the sperm donor role at significantly (P < 0...
December 2016: Biological Bulletin
https://www.readbyqxmd.com/read/28045794/conflict-of-interest-and-funding-disclosure-policies-of-environmental-occupational-and-public-health-journals
#12
David B Resnik, Brandon Konecny, Grace E Kissling
OBJECTIVE: The aim of this study was to analyze conflict of interest (COI) and funding disclosure policies of 224 journals listed in Journal Citation Reports as focusing on environmental, occupational, or public health research. METHODS: A survey of journal policies and content analysis. RESULTS: About 96.0% of the policies required COI disclosure, 92.4% required funding disclosure, 75.9% defined COIs, 69.6% provided examples of COIs, 68.8% addressed nonfinancial COIs, 33...
January 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28043222/public-health-action-following-an-outbreak-of-toxigenic-cutaneous-diphtheria-in-an-auckland-refugee-resettlement-centre
#13
Gary E Reynolds, Helen Saunders, Angela Matson, Fiona O'Kane, Sally A Roberts, Salvin K Singh, Lesley M Voss, Tomasz Kiedrzynski
Global forced displacement has climbed to unprecedented levels due largely to regional conflict. Degraded public health services leave displaced people vulnerable to multiple environmental and infectious hazards including vaccine preventable disease. While diphtheria is rarely notified in New Zealand, a 2 person outbreak of cutaneous diphtheria occurred in refugees from Afghanistan in February 2015 at the refugee resettlement centre in Auckland. Both cases had uncertain immunisation status. The index case presented with a scalp lesion during routine health screen and toxigenic Corynebacterium diphtheriae was isolated...
December 24, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28032061/indoor-environmental-factors-and-occurrence-of-lung-function-decline-in-adult-residents-in-summer-in-southwest-china
#14
Yu Jie, Li Kebin, Tang Yin, Xu Jie
BACKGROUND: There is conflicting reports on the respiratory health effects of indoor risk factor exposure. The aim of this study was to assess the association of indoor environmental factors to pulmonary function in an adult population in Zunyi City of Southwest China. METHODS: Between July and Sep 2012, we conducted a cross-sectional survey of people aged ≥18 yr in 11 inner-city areas of Zunyi. Data on asthma and asthma-related symptoms and selected home environmental factors were assessed by questionnaire...
November 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28031325/diethylstilbestrol-activates-catsper-and-disturbs-progesterone-actions-in-human-spermatozoa
#15
Qian-Xing Zou, Zhen Peng, Qing Zhao, Hou-Yang Chen, Yi-Min Cheng, Qing Liu, Yuan-Qiao He, Shi-Qi Weng, Hua-Feng Wang, Tao Wang, Li-Ping Zheng, Tao Luo
STUDY QUESTION: Is diethylstilbestrol (DES), a prototypical endocrine-disrupting chemical (EDC), able to induce physiological changes in human spermatozoa and affect progesterone actions? SUMMARY ANSWER: DES promoted Ca(2+) flux into human spermatozoa by activating the cation channel of sperm (CatSper) and suppressed progesterone-induced Ca(2+) signaling, tyrosine phosphorylation and sperm functions. WHAT IS KNOWN ALREADY: DES significantly impairs the male reproductive system both in fetal and postnatal exposure...
December 28, 2016: Human Reproduction
https://www.readbyqxmd.com/read/28013362/the-impact-of-fat-and-obesity-on-bone-microarchitecture-and-strength-in-children
#16
Joshua N Farr, Paul Dimitri
A complex interplay of genetic, environmental, hormonal, and behavioral factors affect skeletal development, several of which are associated with childhood fractures. Given the rise in obesity worldwide, it is of particular concern that excess fat accumulation during childhood appears to be a risk factor for fractures. Plausible explanations for this higher fracture risk include a greater propensity for falls, greater force generation upon fall impact, unhealthy lifestyle habits, and excessive adipose tissue that may have direct or indirect detrimental effects on skeletal development...
December 24, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/28011600/aspect-has-a-greater-impact-on-alpine-soil-bacterial-community-structure-than-elevation
#17
Jieyun Wu, Barbara J Anderson, Hannah L Buckley, Gillian Lewis, Gavin Lear
Gradients in environmental conditions, including climate factors and resource availability, occur along mountain inclines, providing a 'natural laboratory' to explore their combined impacts on microbial distributions. Conflicting spatial patterns observed across elevation gradients in soil bacterial community structure suggest that they are driven by various interacting factors at different spatial scales. Here, we investigated the relative impacts of non-resource (e.g., soil temperature, pH) and resource conditions (e...
December 22, 2016: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/27999331/control-of-pollutants-in-the-trans-boundary-area-of-taihu-basin-yangtze-delta
#18
Xiao Wang, Nikolaos Katopodes, Chunqi Shen, Hua Wang, Yong Pang, Qi Zhou
This work focuses on pollution control in the trans-boundary area of Taihu Basin. Considering the unique characteristics of the river network in the study area, a new methodology of pollution control is proposed aiming at improving the water quality in the trans-boundary area and reducing conflicts between up and downstream regions. Based on monitoring data and statistical analysis, important trans-boundary cross sections identified by the regional government were selected as important areas for consideration in developing management objectives; using a 1-D mathematicmodel and an effective weight evaluation model, the trans-boundary effective control scope (TECS) of the study area was identified as the scope for pollutant control; the acceptable pollution load was then estimated using an established model targeting bi-directional flow...
December 17, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27993259/-alcohol-consumption-in-the-colombian-population-2015-national-mental-health-survey
#19
Ricardo Andrés de la Espriella Guerrero, Viviana Rodriguez, Carlos J Rincón, Diana Cabrera Morales, Sandy Johanna Pérez Rodríguez, Carlos Gómez-Restrepo
INTRODUCTION: National Survey of Mental Health (ENSM) in 2015 in Colombia asks, among other conditions, about alcohol consumption in people 12-17 years old, and 18 and older. Data were presented by age and region, with no cross-references to other categories of mental health problems, disorders, access to services, and health status. OBJECTIVE: To assess alcohol consumption in Colombia, taking into account sociodemographic and clinical screening categories included...
December 2016: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/27991898/an-independent-landmark-dominated-head-direction-signal-in-dysgranular-retrosplenial-cortex
#20
Pierre-Yves Jacob, Giulio Casali, Laure Spieser, Hector Page, Dorothy Overington, Kate Jeffery
We investigated how landmarks influence the brain's computation of head direction and found that in a bidirectionally symmetrical environment, some neurons in dysgranular retrosplenial cortex showed bidirectional firing patterns. This indicates dominance of neural activity by local environmental cues even when these conflicted with the global head direction signal. It suggests a mechanism for associating landmarks to or dissociating them from the head direction signal, according to their directional stability and/or utility...
December 19, 2016: Nature Neuroscience
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