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Research Proposal on stress

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https://www.readbyqxmd.com/read/28215296/neurotrophins-in-the-brain-interaction-with-alcohol-exposure-during-development
#1
K E Boschen, A Y Klintsova
Fetal alcohol spectrum disorders (FASDs) are a result of the teratogenic effects of alcohol on the developing fetus. Decades of research examining both individuals with FASDs and animal models of developmental alcohol exposure have revealed the devastating effects of alcohol on brain structure, function, behavior, and cognition. Neurotrophic factors have an important role in guiding normal brain development and cellular plasticity in the adult brain. This chapter reviews the current literature showing that alcohol exposure during the developmental period impacts neurotrophin production and proposes avenues through which alcohol exposure and neurotrophin action might interact...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28206842/finding-the-balance-uncovering-resilience-in-the-veterinary-literature
#2
Martin A Cake, Michelle M McArthur, Susan M Matthew, Caroline F Mansfield
Resilience is an issue of emerging importance in veterinary education and research, as in other professional contexts. The aim of this study was to perform an appraisal of how resilience is portrayed in the contemporary (1995-present) research and education literature around veterinary mental health, and to attempt a provisional synthesis informing a conception of resilience in the veterinary context. Qualitative analysis of the literature (59 sources included) revealed a dominant emphasis on mental health problems, particularly stress, which outweighs and potentially obscures complementary approaches to well-being and resilience...
2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28168596/the-need-to-take-a-staging-approach-to-the-biological-mechanisms-of-ptsd-and-its-treatment
#3
REVIEW
Alexander Cowell McFarlane, Eleanor Lawrence-Wood, Miranda Van Hooff, Gin S Malhi, Rachel Yehuda
Despite the substantial body of neurobiological research, no specific drug target has been developed to treat PTSD and there are substantial limitations with the available interventions. We propose that advances are likely to depend on the development of better classification of the heterogeneity of PTSD using a staging approach of disease. A primary rationale for staging is to highlight the probability that distinct therapeutic approaches need to be utilised according to the degree of biological progression of the disorder...
February 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28158066/research-on-the-mechanical-stability-of-high-laser-resistant-coatings-on-lithium-triborate-crystal
#4
Jinlong Zhang, Xiaoqing Bu, Bin Ma, Hongfei Jiao, Xinbin Cheng, Zhanshan Wang
The thermomechanical property of the hafnium/silica antireflection (AR) coatings on lithium triborate (LBO) crystal was investigated by simulation and experiment. From the analysis of the stress and fracture toughness, it was found that the crack originated due to the high tensile stress in hafnium coating. Then we proposed the approaches of decreasing the deposition temperature and substituting the hafnium layers with alumina to improve the mechanical stability of AR coatings on LBO crystals, and cracks were effectively suppressed...
February 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28150993/a-longitudinal-study-of-teachers-occupational-well-being-applying-the-job-demands-resources-model
#5
Theresa Dicke, Ferdinand Stebner, Christina Linninger, Mareike Kunter, Detlev Leutner
The job demands-resources model (JD-R model; Bakker & Demerouti, 2014) is well established in occupational research, and the proposed processes it posits have been replicated numerous times. Thus, the JD-R model provides an excellent framework for explaining the occupational well-being of beginning teachers-an occupation associated with particularly high levels of strain and consequently, high attrition rates. However, the model's assumptions have to date mostly been tested piecewise, and seldom on the basis of longitudinal models...
February 2, 2017: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/28146639/fifty-years-of-research-in-ards-setting-positive-end-expiratory-pressure-in-the-acute-respiratory-distress-syndrome
#6
Sarina K Sahetya, Ewan C Goligher, Roy G Brower
Positive end-expiratory pressure (PEEP) has been utilized during mechanical ventilation since the first description of the acute respiratory distress syndrome (ARDS). In the subsequent decades, many different strategies for optimally titrating PEEP have been proposed. Higher PEEP can improve arterial oxygenation, reduce tidal lung stress and strain, and promote more homogenous ventilation by preventing alveolar collapse at end expiration. However, PEEP may also cause circulatory depression and contribute to ventilator-induced lung injury through alveolar overdistention...
February 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28144227/the-buffering-effect-of-workplace-resources-on-the-relationship-between-the-areas-of-worklife-and-burnout
#7
Paul Jimenez, Anita Dunkl
Background: Workplace resources are found to play a major role in the stress-strain relationship. However, usually different types of resources are investigated, whereas investigating different facets of stress ("stressors") receive less attention in research about the relationship between stress, strain and resources. Based upon recent research, we expected that workplace resources moderate the relationship between stressors (operationalized with the areas of worklife) and long-term strain (operationalized with three dimensions of burnout) in the sense that workplace resources buffer the negative effects of stressors on strain...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28140651/the-impact-of-the-postharvest-environment-on-the-viability-and-virulence-of-decay-fungi
#8
Jia Liu, Yuan Sui, Michael Wisniewski, Zhigang Xie, Yiqing Liu, Yuming You, Xiaojing Zhang, Zhiqiang Sun, Wenhua Li, Yan Li, Qi Wang
Postharvest decay of fruits, vegetables, and grains by fungal pathogens causes significant economic losses. Infected produce presents a potential health risk since some decay fungi produce mycotoxins that are hazardous to human health. Infections are the result of the interplay between host resistance and pathogen virulence. Both of these processes, however, are significantly impacted by environmental factors, such as temperature, UV, oxidative stress and water activity. In the present review, the impact of various physical postharvest treatments (e...
January 31, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28115400/revisiting-life-strategy-concepts-in-environmental-microbial-ecology
#9
Adrian Ho, D Paolo Di Lonardo, Paul L E Bodelier
Microorganisms are physiologically diverse, possessing disparate genomic features and mechanisms for adaptation (functional traits), which reflect on their associated life strategies and determine at least to some extent their prevalence and distribution in the environment. Unlike animals and plants, there is an unprecedented diversity and intractable metabolic versatility among bacteria, making classification or grouping these microorganisms based on their functional traits as has been done in animal and plant ecology challenging...
January 22, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28114869/salivary-cortisol-and-cognitive-development-in-infants-from-low-income-communities
#10
Eric D Finegood, Claire Wyman, Thomas G O'Connor, Clancy B Blair
Early stress exposure is proposed to have significant lasting effects on cognitive development. The glucocorticoid hormone cortisol, a product of the hypothalamic-pituitary-adrenal (HPA) axis, is a particular focus of research, however, the majority of past research has been based on studies of older children and adults. Evidence linking cortisol levels in infancy with cognitive development is lacking. In a large cohort sample of infants (N = 1,091) oversampled for psychosocial risk, we tested whether basal cortisol levels and cortisol reactivity to emotional stressors administered at 7 and 15 months of age were associated with cognitive development measured at 15 months...
January 23, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28111405/heat-stress-intervention-research-in-construction-gaps-and-recommendations
#11
Yang Yang, Albert Ping-Chuen Chan
Developing heat stress interventions for construction workers has received mounting concerns in recent years. However, limited efforts have been exerted to elaborate the rationale, methodology, and practicality of heat stress intervention in the construction industry. This study aims to review previous heat stress intervention research in construction, and to identify the major research gaps in methodological issues and offer detailed recommendations for future studies. A total of 35 peer-reviewed journal papers have exerted efforts to develop administrative, environmental and personal engineering controls to safeguard construction workers...
January 20, 2017: Industrial Health
https://www.readbyqxmd.com/read/28109824/expanding-the-actions-of-cortisol-and-corticosterone-in-wild-vertebrates-a-necessary-step-to-overcome-the-emerging-challenges
#12
REVIEW
Federico Vera, Roxana Zenuto, C Daniel Antenucci
We conducted a review of scientific articles published between 2000 and 2014 and evaluated how frequently various aspects of cortisol and corticosterone (CORT) actions have been considered in studies on wild vertebrates. Results show that (1) the notion that CORT are stress-responsive hormones is central in our theoretical frameworks and it is reflected by the fact that several articles refer to CORT as "stress hormones". (2) The large majority of studies do not contemplate the possibility of decrease and no change in CORT levels in response to chronic stressors...
January 18, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28107039/future-directions-in-the-study-of-early-life-stress-and-physical-and-emotional-health-implications-of-the-neuroimmune-network-hypothesis
#13
Camelia E Hostinar, Robin Nusslock, Gregory E Miller
Early-life stress is associated with increased vulnerability to physical and emotional health problems across the lifespan. The recently developed neuroimmune network hypothesis proposes that one of the underlying mechanisms for these associations is that early-life stress amplifies bidirectional crosstalk between the brain and the immune system, contributing to several mental and physical health conditions that have inflammatory underpinnings, such as depression and coronary heart disease. Neuroimmune crosstalk is thought to perpetuate inflammation and neural alterations linked to early-life stress exposure, and also foster behaviors that can further compromise health, such as smoking, drug abuse and consumption of high-fat diets...
January 20, 2017: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/28101914/prenatal-stress-exposure-generates-higher-early-survival-and-smaller-size-without-impacting-developmental-rate-in-a-pacific-salmon
#14
Pauline M Capelle, Christina A D Semeniuk, Natalie M Sopinka, John W Heath, Oliver P Love
Prenatal exposure to elevated glucocorticoids can act as a signal of environmental stress, resulting in modifications to offspring phenotype. While "negative" phenotypic effects (i.e., smaller size, slower growth) are often reported, recent research coupling phenotype with other fitness-related traits has suggested positive impacts of prenatal stress. Using captive Chinook salmon (Oncorhynchus tshawytscha), we treated eggs with biologically relevant cortisol levels-low (300 ng mL(-1) ), high (1,000 ng mL(-1) ), or control (0 ng mL(-1) )-to examine the early-life impacts of maternally transferred stress hormones on offspring...
January 18, 2017: Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology
https://www.readbyqxmd.com/read/28093021/altering-ethanol-pharmacokinetics-to-treat-alcohol-use-disorder-can-you-teach-an-old-dog-new-tricks
#15
Carolina L Haass-Koffler, Fatemeh Akhlaghi, Robert M Swift, Lorenzo Leggio
Disulfiram was the first pharmacotherapy approved to treat alcohol use disorder in the 1950s. Disulfiram alters ethanol pharmacokinetics and causes uncomfortable reactions (e.g. headache, tachycardia, nausea, flushing and hypotension) when alcohol is consumed. Subsequently, a better understanding of the neurobiological pathways involved in alcohol use disorder led to the development of other medications (e.g. naltrexone and acamprosate). These neurobiological-based medications act on alcohol use disorder-related phenotypes including craving, stress, and/or withdrawal...
January 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28092210/the-insights-of-health-and-welfare-professionals-on-hurdles-that-impede-economic-evaluations-of-welfare-interventions
#16
J Schepers, J Plaete, I De Bourdeaudhuij, L Annemans, S Simoens
OBJECTIVES: Four hurdles associated with economic evaluations in welfare interventions were identified and discussed in a previous published literature review. These hurdles include (i) 'Ignoring the impact of condition-specific outcomes', (ii) 'Ignoring the impact of QoL externalities', (iii) 'Calculation of costs from a too narrow perspective' and (iv) 'The lack of well-described & standardized interventions'. This study aims to determine how healthcare providers and social workers experience and deal with these hurdles in practice and what solutions or new insights they would suggest...
January 16, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/28086798/genome-wide-association-analysis-of-seedling-traits-in-diverse-sorghum-germplasm-under-thermal-stress
#17
Ratan Chopra, Gloria Burow, John J Burke, Nicholas Gladman, Zhanguo Xin
BACKGROUND: Climate variability due to fluctuation in temperature is a worldwide concern that imperils crop production. The need to understand how the germplasm variation in major crops can be utilized to aid in discovering and developing breeding lines that can withstand and adapt to temperature fluctuations is more necessary than ever. Here, we analyzed the genetic variation associated with responses to thermal stresses in a sorghum association panel (SAP) representing major races and working groups to identify single nucleotide polymorphisms (SNPs) that are associated with resilience to temperature stress in a major cereal crop...
January 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28081280/evaluation-on-the-germplasm-of-maize-zea-mays-l-landraces-from-southwest-china
#18
F B Chen, Q L Yao, H F Liu, P Fang
Because of their local adaptation and economic factors that limit the adoption of commercial hybrids, farmer-saved maize landraces are still grown over a considerable area concentrated in southwest China. To evaluate the potential of using maize landraces, the germplasm characteristics of 96 landraces from southwest China were evaluated at phenotypic, cellular, and molecular levels. The existence of high phenotypic variation and elite germplasm tolerant to low-N, low-P, as well as drought stress was observed...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28077245/a-systematic-review-of-adrenarche-as-a-sensitive-period-in-neurobiological-development-and-mental-health
#19
REVIEW
Michelle L Byrne, Sarah Whittle, Nandita Vijayakumar, Meg Dennison, Julian G Simmons, Nicholas B Allen
Substantial hormonal and neurobiological changes occur during puberty, and are widely argued to render this period of life a sensitive period in terms of risk for mental health problems. However, there is a paucity of research focusing on adrenarche, the earlier phase of pubertal development. Furthermore, there is a limited understanding of the association between adrenarche and neural development during this phase of life. We systematically reviewed research examining human adrenarcheal development as operationalized by hormonal levels of DHEA and DHEA-S, in relation to indices of mental health (Systematic Review 1)...
December 21, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28074666/association-between-posttraumatic-stress-and-acceptance-of-social-changes-findings-from-a-general-population-study-and-proposal-of-a-new-concept
#20
Evaldas Kazlauskas, Paulina Zelviene
BACKGROUND: There is a growing understanding of the importance of the social factors of posttraumatic stress disorder. AIMS: This study expands research on association between posttraumatic stress and social factors by introducing the measure of the acceptance of social changes and evaluating possible links between posttraumatic stress disorder symptoms and acceptance of social changes. METHODS: A general population sample ( n = 778) aged from 18 to 89 years ( M = 40...
January 1, 2017: International Journal of Social Psychiatry
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