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Resiliance

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https://www.readbyqxmd.com/read/29351585/core-differences-in-synaptic-signaling-between-primary-visual-and-dorsolateral-prefrontal-cortex
#1
Sheng-Tao Yang, Min Wang, Constantinos D Paspalas, Johanna L Crimins, Marcus T Altman, James A Mazer, Amy F T Arnsten
Neurons in primary visual cortex (V1) are more resilient than those in dorsolateral prefrontal cortex (dlPFC) in aging, schizophrenia and Alzheimer's disease. The current study compared glutamate and neuromodulatory actions in macaque V1 to those in dlPFC, and found striking regional differences. V1 neuronal firing to visual stimuli depended on AMPA receptors, with subtle NMDA receptor contributions, while dlPFC depends primarily on NMDA receptors. Neuromodulatory actions also differed between regions. In V1, cAMP signaling increased neuronal firing, and the phosphodiesterase PDE4A was positioned to regulate cAMP effects on glutamate release from axons...
January 17, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29351566/patterns-in-reef-fish-assemblages-insights-from-the-chagos-archipelago
#2
Melita Samoilys, Ronan Roche, Heather Koldewey, John Turner
Understanding the drivers of variability in the composition of fish assemblages across the Indo-Pacific region is crucial to support coral reef ecosystem resilience. Whilst numerous relationships and feedback mechanisms between the functional roles of coral reef fishes and reef benthic composition have been investigated, certain key groups, such as the herbivores, are widely suggested to maintain reefs in a coral-dominated state. Examining links between fishes and reef benthos is complicated by the interactions between natural processes, disturbance events and anthropogenic impacts, particularly fishing pressure...
2018: PloS One
https://www.readbyqxmd.com/read/29350875/highly-dynamic-wintering-strategies-in-migratory-geese-coping-with-environmental-change
#3
Kevin Kuhlmann Clausen, Jesper Madsen, Fred Cottaar, Eckhart Kuijken, Christine Verscheure
When and where to move is a fundamental decision to migratory birds, and the fitness-related costs and benefits of migratory choices make them subject to strong selective forces. Site use and migration routes are outcomes of opportunities in the surrounding landscape, and the optimal migration strategy may be conservative or explorative depending on the variability of the environment occupied by the species. This study applies 25 years of resighting data to examine development in winter migration strategy of pink-footed geese divided among Denmark, the Netherlands and Belgium, and analyse potential drivers of strategy change as well as individuals' likelihood to break with migratory tradition...
January 19, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29350573/feasibility-and-acceptability-of-screening-for-adverse-childhood-experiences-in-prenatal-care
#4
Tracy Flanagan, Amy Alabaster, Brigid McCaw, Nicole Stoller, Carey Watson, Kelly C Young-Wolff
INTRODUCTION: Adverse childhood experiences (ACEs) are common among pregnant women and contribute to increased risk for negative perinatal outcomes, yet few clinicians screen prenatal patients for ACEs. The purpose of this study was to evaluate the feasibility and acceptability of screening for ACEs in standard prenatal care. METHODS: We evaluated a 4-month pilot (March 2016-June 2016) to screen pregnant women (at ∼14-23 weeks of gestation) for ACEs and resiliency in two Kaiser Permanente Northern California medical centers (N = 480)...
January 19, 2018: Journal of Women's Health
https://www.readbyqxmd.com/read/29350481/emotion-regulation-and-positive-affect-in-the-context-of-salivary-alpha-amylase-response-to-pain-in-children-with-cancer
#5
Brooke N Jenkins, Douglas A Granger, Ryan J Roemer, Ariana Martinez, Tara K Torres, Michelle A Fortier
BACKGROUND: Children with cancer routinely undergo painful medical procedures invoking strong physiological stress responses. Resilience to this pain may be conferred through resources such as emotion regulation strategies and positive affect. PROCEDURE: This study measured dispositional positive affect in children with cancer (N = 73) and randomly assigned participants to one of three emotion regulation strategy conditions (distraction, reappraisal, or reassurance)...
January 19, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29350297/microbial-communities-and-their-predicted-metabolic-functions-in-a-desiccating-acid-salt-lake
#6
Elena Zaikova, Kathleen C Benison, Melanie R Mormile, Sarah Stewart Johnson
The waters of Lake Magic in Western Australia are among the most geochemically extreme on Earth. This ephemeral saline lake is characterized by pH as low as 1.6 salinity as high as 32% total dissolved solids, and unusually complex geochemistry, including extremely high concentrations of aluminum, silica, and iron. We examined the microbial composition and putative function in this extreme acid brine environment by analyzing lake water, groundwater, and sediment samples collected during the austral summer near peak evapoconcentration...
January 19, 2018: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29349872/the-personal-communities-of-men-experiencing-later-life-widowhood
#7
Tracy Collins
Increasingly men are becoming widowed in later life due in part to a longer life expectancy. Social networks and social support are thought to help buffer the negative consequences of such later life transitions. This paper explores the personal communities of a group of older men experiencing widowhood. Qualitative in-depth interviews were conducted, September 2013-February 2014, with seven older widowers, 71-89 years of age, in North Staffordshire, UK. Interviews included personal community diagrams to identify the structure of the older men's social relationships...
January 18, 2018: Health & Social Care in the Community
https://www.readbyqxmd.com/read/29349479/resilience-and-protective-factors-among-people-with-a-history-of-child-maltreatment-a-systematic-review
#8
REVIEW
Xiangfei Meng, Marie-Josee Fleury, Yu-Tao Xiang, Muzi Li, Carl D'Arcy
PURPOSE: To provide an overview of resilience and protective factors associated with a better life following child maltreatment exposure, to compare protective factors across specific subtypes of maltreatment, and to explore existing issues in the current state of the literature. METHODS: Electronic databases and grey literature up to October 2017 were systematically searched for English language with observational study designs for the research on resilience and childhood maltreatment...
January 18, 2018: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/29349272/why-is-parental-lifespan-linked-to-children-s-chances-of-reaching-a-high-age-a-transgenerational-hypothesis
#9
Denny Vågerö, Vanda Aronsson, Bitte Modin
Purpose: Transgenerational determinants of longevity are poorly understood. We used data from four linked generations (G0, G1, G2 and G3) of the Uppsala Birth Cohort Multigeneration Study to address this issue. Methods: Mortality in G1 (N = 9565) was followed from 1961-2015 and analysed in relation to tertiles of their parents' (G0) age-at-death using Cox regression. Parental social class and marital status were adjusted for in the analyses, as was G1's birth order and adult social class...
April 2018: SSM—Population Health
https://www.readbyqxmd.com/read/29348594/myelination-of-purkinje-axons-is-critical-for-resilient-synaptic-transmission-in-the-deep-cerebellar-nucleus
#10
Tara Barron, Julia Saifetiarova, Manzoor A Bhat, Jun Hee Kim
The roles of myelin in maintaining axonal integrity and action potential (AP) propagation are well established, but its role in synapse maintenance and neurotransmission remains largely understudied. Here, we investigated how Purkinje axon myelination regulates synaptic transmission in the Purkinje to deep cerebellar nuclei (DCN) synapses using the Long Evans Shaker (LES) rat, which lacks compact myelin and thus displays severe locomotion deficits. DCN neurons fired spontaneous action potentials (APs), whose frequencies were dependent on the extent of myelin...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348003/the-waterhub-at-emory-university-campus-resiliency-through-decentralized-reuse
#11
Daniel Allison, Eric Lohan, Tim Baldwin
  In the spring of 2015, Emory University in Atlanta, GA, commissioned an innovative campuswide water reclamation and reuse system known as the WaterHub®. Treating up to 400,000 gallons each day, the system can recycle the equivalent of two-thirds of the University's wastewater production and reduce the campus water footprint by up to 40 percent.One of the first district-scale water reuse systems in North America, the WaterHub mines wastewater from the campus sewer system and repurposes it for beneficial reuse on campus...
February 1, 2018: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/29347979/altered-environmental-light-drives-retinal-change-in-the-atlantic-tarpon-megalops-atlanticus-over-timescales-relevant-to-marine-environmental-disturbance
#12
Lorian E Schweikert, Michael S Grace
BACKGROUND: For many fish species, retinal function changes between life history stages as part of an encoded developmental program. Retinal change is also known to exhibit plasticity because retinal form and function can be influenced by light exposure over the course of development. Aside from studies of gene expression, it remains largely unknown whether retinal plasticity can provide functional responses to short-term changes in environmental light quality. The aim of this study was to determine whether the structure and function of the fish retina can change in response to altered light intensity and spectrum-not over the course of a developmental regime, but over shorter time periods relevant to marine habitat disturbance...
January 18, 2018: BMC Ecology
https://www.readbyqxmd.com/read/29347771/hierarchy-measurement-for-modeling-network-dynamics-under-directed-attacks
#13
M Rubinson, N Levit-Binnun, A Peled, J Naim-Feil, D Freche, E Moses
A fundamental issue in the dynamics of complex systems is the resilience of the network in response to targeted attacks. This paper explores the local dynamics of the network attack process by investigating the order of removal of the nodes that have maximal degree, and shows that this dynamic network response can be predicted from the graph's initial connectivity. We demonstrate numerically that the maximal degree M(τ) of the network at time step τ decays exponentially with τ via a topology-dependent exponent...
November 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347295/time-varying-multiplex-network-intralayer-and-interlayer-synchronization
#14
Sarbendu Rakshit, Soumen Majhi, Bidesh K Bera, Sudeshna Sinha, Dibakar Ghosh
A large class of engineered and natural systems, ranging from transportation networks to neuronal networks, are best represented by multiplex network architectures, namely a network composed of two or more different layers where the mutual interaction in each layer may differ from other layers. Here we consider a multiplex network where the intralayer coupling interactions are switched stochastically with a characteristic frequency. We explore the intralayer and interlayer synchronization of such a time-varying multiplex network...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346683/strigolactones-mediators-of-osmotic-stress-responses-with-a-potential-for-agrochemical-manipulation-of-crop-resilience
#15
Francesca Cardinale, Paolo Korwin Krukowski, Andrea Schubert, Ivan Visentin
After quickly touching upon general aspects of strigolactones biology and functions, including structure, synthesis and perception, this review focuses on the role and regulation of the strigolactone pathway during osmotic stress, in light of the most recent research developments. We discuss available data on organ-specific dynamics of strigolactone synthesis and interaction with abscisic acid in the acclimatization response, with emphasis on the ecophysiological implications of the effects on the stomatal closure process...
January 15, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29345519/-i-just-roll-over-pick-myself-up-and-carry-on-exploring-the-fall-risk-experience-of-canadian-masters-athletes
#16
Dylan Brennan, Aleksandra A Zecevic, Shannon L Sibbald, Volker Nolte
OBJECTIVES: The risk of falling increases in adults over the age of 65. A common barrier to take up physical activity in sedentary older adults is the fear of falls and injury. Experiences of masters athletes can provide insights into management of the risk for falling. The purpose of this phenomenological study was to explore the fall-risk experience of masters athletes actively competing in sport. METHODS: Masters athletes over the age of 55 (n=22) described their experiences in semi-structured interviews...
January 18, 2018: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/29345430/wearable-wireless-tyrosinase-bandage-and-microneedle-sensors-toward-melanoma-screening
#17
Bianca Ciui, Aida Martin, Rupesh K Mishra, Barbara Brunetti, Tatsuo Nakagawa, Thomas J Dawkins, Mengjia Lyu, Cecilia Cristea, Robert Sandulescu, Joseph Wang
Wearable bendable bandage-based sensor and a minimally invasive microneedle biosensor are described toward rapid screening of skin melanoma. These wearable electrochemical sensors are capable of detecting the presence of the tyrosinase (TYR) enzyme cancer biomarker in the presence of its catechol substrate, immobilized on the transducer surface. In the presence of the surface TYR biomarker, the immobilized catechol is rapidly converted to benzoquinone that is detected amperometrically, with a current signal proportional to the TYR level...
January 18, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29345416/a-qualitative-study-experiences-of-stigma-by-people-with-mental-health-problems
#18
Charlotte Huggett, Michèle D Birtel, Yvonne F Awenat, Paul Fleming, Sophie Wilkes, Shirley Williams, Gillian Haddock
OBJECTIVES: Prior research has examined various components involved in the impact of public and internalized stigma on people with mental health problems. However, studies have not previously investigated the subjective experiences of mental health stigma by those affected in a non-statutory treatment-seeking population. DESIGN: An in-depth qualitative study was conducted using thematic analysis to investigate the experiences of stigma in people with mental health problems...
January 18, 2018: Psychology and Psychotherapy
https://www.readbyqxmd.com/read/29345055/npas4-deficiency-interacts-with-adolescent-stress-to-disrupt-prefrontal-gabaergic-maturation-and-adult-cognitive-flexibility
#19
Chloe Page, Jonathan Alexander, Ryan Shepard, Laurence Coutellier
Healthy cognitive and emotional functioning relies on a balance between excitatory and inhibitory neurotransmission in the prefrontal cortex. This balance is largely established during early postnatal and adolescent developmental periods by maturation of the γ-aminobutyric acid (GABA) system, including increased density of parvalbumin cells and perineuronal nets. Genetic and/or environmental factors during adolescence can disrupt GABAergic maturation and lead to behavioral dysfunction in adulthood. The present study examined the interaction between chronic mild stress during adolescence and genetic deficiency of neuronal PAS domain 4 (Npas4), a brain-specific transcription factor that regulates inhibitory neurotransmission and that contributes to adolescent prefrontal GABAergic maturation...
January 18, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29344705/-which-foot-deformities-should-be-radiologist-be-familiar-with
#20
REVIEW
E von Stillfried
Most deformities of the foot are visible at birth and can be diagnosed without imaging. They can be divided into congenital flexible, congenital structural and acquired foot deformities. The most common congenital flexible foot deformity in children is the metatarsus adductus, which usually requires no long-term therapy. Regarding congenital structural deformities, such as the clubfoot and talus verticalis, plaster therapy should be started during the first week of life, so that by the end of the first year of life and the beginning of the verticalization, a pain-free resilient foot with normal function is present...
January 17, 2018: Der Radiologe
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