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Research Proposal on stress

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https://www.readbyqxmd.com/read/29781762/systemic-acquired-resistance-and-salicylic-acid-past-present-and-future
#1
Daniel F Klessig, Hyong Woo Choi, D'Maris Amick Dempsey
Salicylic acid (SA) is a critical plant hormone that regulates numerous aspects of plant growth and development, as well as the activation of defenses against biotic and abiotic stress. Here we present a historical overview of the progress that has been made to date in elucidating SA's role in signaling plant immune responses. The ability of plants to develop acquired immunity after pathogen infection was first proposed in 1933. However, most of our knowledge about plant immune signaling was generated over the last three decades, following the discovery that SA is an endogenous defense signal...
May 21, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29780369/identification-and-removal-of-contaminant-sequences-from-ribosomal-gene-databases-lessons-from-the-census-of-deep-life
#2
Cody S Sheik, Brandi Kiel Reese, Katrina I Twing, Jason B Sylvan, Sharon L Grim, Matthew O Schrenk, Mitchell L Sogin, Frederick S Colwell
Earth's subsurface environment is one of the largest, yet least studied, biomes on Earth, and many questions remain regarding what microorganisms are indigenous to the subsurface. Through the activity of the Census of Deep Life (CoDL) and the Deep Carbon Observatory, an open access 16S ribosomal RNA gene sequence database from diverse subsurface environments has been compiled. However, due to low quantities of biomass in the deep subsurface, the potential for incorporation of contaminants from reagents used during sample collection, processing, and/or sequencing is high...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29772309/attention-deficit-hyperactivity-disorder-and-obesity-a-review-and-model-of-current-hypotheses-explaining-their-comorbidity
#3
REVIEW
Tomasz Hanć, Samuele Cortese
Available meta-analyses point to a significant association between attention-deficit/hyperactivity disorder (ADHD) and obesity. The possible mechanisms underlying this relationship are unclear. Here, we overview the studies aimed at identifying the factors contributing to the comorbidity between ADHD and obesity, including genetic factors, fetal programming, executive dysfunctions, psychosocial stress, factors directly related to energy balance, and sleep patterns alterations. The bulk of current research has focused on reduced physical activity and abnormal eating patterns as possible causes of weight gain in individuals with ADHD...
May 14, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29762483/a-feasibility-study-on-timber-damage-detection-using-piezoceramic-transducer-enabled-active-sensing
#4
Jicheng Zhang, Yongshui Huang, Yu Zheng
In recent years, piezoelectric-based transducers and technologies have made significant progress towards structural health monitoring and damage evaluation for various metal and concrete structures. Timber is still commonly used as a construction material in practical engineering; however, there is a lack of research on the health monitoring of timber-based structures using piezoelectric-based transducers and methods. This paper conducts a feasibility study on timber damage detection using surface-mounted piezoelectric patches, which enable the stress-wave-based active sensing approach...
May 15, 2018: Sensors
https://www.readbyqxmd.com/read/29756787/work-stressors-and-partner-social-undermining-comparing-negative-affect-and-psychological-detachment-as-mechanisms
#5
Laurenz L Meier, Eunae Cho
With the mounting evidence that employees' work experiences spill over into the family domain and cross over to family members, it is important to understand the underlying mechanism through which work experiences affect the family domain and what factors may alleviate the adverse impact of work stress. Expanding previous research that mainly focused on the affect-based mechanism (negative affect), the present research investigated a resource-based mechanism (psychological detachment from work) in the relationship linking two work stressors (high workload and workplace incivility) with social undermining toward the partner at home...
May 14, 2018: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/29755928/the-effects-of-social-support-on-strenuous-physical-exercise
#6
Arran Davis, Emma Cohen
In humans, socio-environmental cues play an important role in determining adaptive psychophysiological states and behaviours. In sport and exercise, cues to cohesive groups and close, supportive relationships are ubiquitous, possibly because of their effects on neurobiological mechanisms underlying physical performance. Clinical research has shown that the presence of supportive others can lead to reductions in perceptions of pain, while research from sport and exercise science has shown that pain and physical fatigue occupy ranges on a single spectrum of physical discomfort, which works to regulate outputs during strenuous physical exertion...
2018: Adaptive Human Behavior and Physiology
https://www.readbyqxmd.com/read/29755394/a-pathway-to-psychological-difficulty-perceived-chronic-social-adversity-and-its-symptomatic-reactions
#7
Cody Ding, Jingqiu Zhang, Dong Yang
In this paper, we attempt to predict and explain psychological maladjustment or difficulty. Specifically, we discuss the concept of perceived chronic social adversity, and we expect that such perceived chronic social adversity may potentially lead to chronic stress responses. Accordingly, we propose the symptomatic reactions of perceived chronic social adversity. We put forward a set of hypotheses regarding the relationships between perceived chronic social adversity and those chronic stress responses, and we further hypothesize a mediating role of individualized negative essentialism brought by perceived chronical social adversity...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29755234/the-substantiation-of-the-elastic-viscoplastic-model-of-the-human-spine-for-modeling-the-correction-process-of-kyphoscoliotic-deformation
#8
Konstantin S Sergeev, Valery V Piven
Purpose: The relevance of the problem is caused by an increase in the number of spine-related diseases among children, including scoliosis. Currently, there are no methodologies for the treatment of scoliosis, which ensure an unambiguous positive result. The purpose of the article is to justify the spinal model as an elastic viscoplastic body for further mathematical modeling of the process of spine correction and search for its optimal conditions. Methodology: The leading approach to the study of this problem is the development of techniques for the surgical treatment of deformities of the vertebral column with the aid of an external fixation device for the spine, providing for a rigid connection of the elements of the apparatus with each other and with the spine...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29754828/prehabilitation-and-functional-recovery-for-colorectal-cancer-patients
#9
REVIEW
Enrico Maria Minnella, Francesco Carli
Cancer and its treatments are associated with functional decline that has impactful consequences on quality of life, and care continuum. Thus, optimizing perioperative functional capacity has been identified as a research and clinical priority in cancer care. The process of enhancing physical fitness before an operation to enable the patient to withstand the stress of surgery has been termed prehabilitation. Main elements are preoperative exercise, nutrition therapy, and anxiety-reduction techniques. Given the growing body of evidence on prehabilitation efficacy, this narrative review will summarize the rational underlying preoperative interventions, and propose a structured clinical pathway aimed at optimizing preoperative functional capacity...
April 30, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29754005/the-effect-of-gestational-period-on-the-association-between-maternal-prenatal-salivary-cortisol-and-birth-weight-a-systematic-review-and-meta-analysis
#10
REVIEW
Stephana J Cherak, Gerald F Giesbrecht, Amy Metcalfe, Paul E Ronksley, Mary E Malebranche
BACKGROUND: Studies exploring the relations between maternal stress and fetal development show an association between increased maternal stress and adverse birth outcomes. A frequently proposed mechanism linking maternal prenatal stress and adverse birth outcomes is heightened concentrations of maternal cortisol. To date, studies exploring this association have reported conflicting results because of the diverse approaches taken to measuring cortisol and the wide variety of possible birth outcomes explored...
April 24, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29751949/platelet-storage-lesions-what-more-do-we-know-now
#11
REVIEW
Monica Suet Ying Ng, John-Paul Tung, John Francis Fraser
Platelet concentrate (PC) transfusions are a lifesaving adjunct to control and prevent bleeding in cancer, hematologic, surgical, and trauma patients. Platelet concentrate availability and safety are limited by the development of platelet storage lesions (PSLs) and risk of bacterial contamination. Platelet storage lesions are a series of biochemical, structural, and functional changes that occur from blood collection to transfusion. Understanding of PSLs is key for devising interventions that prolong PC shelf life to improve PC access and wastage...
April 17, 2018: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/29751621/investigative-method-for-fatigue-crack-propagation-based-on-a-small-time-scale
#12
Hongxun Wang, Weifang Zhang, Jingyu Zhang, Wei Dai, Yan Zhao
In-situ scanning electron microscopy (SEM) testing based on a small time scale is proposed to integrally investigate the fatigue crack growth behavior and mechanisms, which is different from the widely-used, cycle-based approach due to its small time scale and comprehensive analysis of the effects of microstructure, crack closure and applied loading on crack growth. In the proposed methodology, the behavior of fatigue crack growth at any time within a loading cycle is observed by SEM to investigate the influence of microstructure on crack growth...
May 11, 2018: Materials
https://www.readbyqxmd.com/read/29749529/%C3%AE-%C3%A2-synuclein-induces-apoptosis-of-astrocytes-by-causing-dysfunction-of-the-endoplasmic-reticulum%C3%A2-golgi-compartment
#13
Mei Liu, Lixia Qin, Lili Wang, Jieqiong Tan, Hainan Zhang, Jianguang Tang, Xiangmin Shen, Liming Tan, Chunyu Wang
Although previous work has demonstrated that the overexpression of wild‑type or mutant α‑synuclein (α‑syn) can induce cell death via a number of different mechanisms, including oxidative stress, dysfunction of the ubiquitin‑proteasome degradation system, mitochondrial damage and endoplasmic reticulum (ER) stress, research interest has primarily focused on neurons. However, there is accumulating evidence that suggests that astrocytes may be involved in the earliest changes, as well as the progression of Parkinson's disease (PD), though the role of α‑syn in astrocytes has not been widely studied...
May 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29747147/tracing-trends-in-plant-physiology-and-biochemistry-need-of-databases-from-genetic-to-kingdom-level
#14
Muhammad Shahid, Eric Pinelli, Camille Dumat
With the rapid advancement in technologies over recent decades, abundant data regarding plant physiological/biochemical responses to stress conditions are now available. Comparing plant stress responses using latest statistical software and analytical models can trace very interesting and useful trends in literature data, which can be of high use for future research and policy making. This model study uses principal component analysis (PCA) to compare physiological/biochemical responses of Vicia faba plant against Pb stress chelated by ethylenediaminetetraacetic acid (EDTA) or citric acid (CA)...
April 24, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29725101/core-microbiomes-for-sustainable-agroecosystems
#15
REVIEW
Hirokazu Toju, Kabir G Peay, Masato Yamamichi, Kazuhiko Narisawa, Kei Hiruma, Ken Naito, Shinji Fukuda, Masayuki Ushio, Shinji Nakaoka, Yusuke Onoda, Kentaro Yoshida, Klaus Schlaeppi, Yang Bai, Ryo Sugiura, Yasunori Ichihashi, Kiwamu Minamisawa, E Toby Kiers
In an era of ecosystem degradation and climate change, maximizing microbial functions in agroecosystems has become a prerequisite for the future of global agriculture. However, managing species-rich communities of plant-associated microbiomes remains a major challenge. Here, we propose interdisciplinary research strategies to optimize microbiome functions in agroecosystems. Informatics now allows us to identify members and characteristics of 'core microbiomes', which may be deployed to organize otherwise uncontrollable dynamics of resident microbiomes...
May 2018: Nature Plants
https://www.readbyqxmd.com/read/29723942/-antioxidant-vitamins-in-asthma
#16
Columba Citlalli Barrera-Mendoza, Francisco Ayala-Mata, Christian Cortés-Rojo, Martha Estrella García-Pérez, Alain Raimundo Rodríguez-Orozco
Asthma is a condition of unknown etiology characterized by chronic airway inflammation. Cells that mediate the inflammatory response generate reactive oxygen species that, together with other respiratory tract naturally-occurring oxidant species, produce a rupture of the redox balance, generating oxidative stress. It has been proposed that oxidative stress can be reverted by supplemental or dietary intake of antioxidant vitamins such as vitamin A, C, D and E, and this way relieve, improve or protect people with asthma...
January 2018: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29717791/perceived-organizational-support-burnout-satisfaction-relationship-in-workers-with-disabilities-the-moderation-of-family-support
#17
Carlos-María Alcover, Maria José Chambel, Juan José Fernández, Fernando Rodríguez
Our study tests the perceived organizational support-burnout-satisfaction relationship based on stressor-strain-outcome model of stress (Koeske & Koeske, ) and on the conservation of resources theory (Hobfoll, ) in workers with disabilities employed in ordinary or competitive jobs (open labor market), analyzing the relationship between perceived organizational support, family support, job satisfaction and burnout. We use a sample of 246 workers with physical, motor, sensory and psychological disabilities working in ordinary jobs...
May 2, 2018: Scandinavian Journal of Psychology
https://www.readbyqxmd.com/read/29713492/effect-of-cold-stress-on-infanticide-by-female-swiss-albino-mice-mus-musculus-a-pilot-study
#18
Tabassum Zafar, Ab Qayoom Naik, Vinoy K Shrivastava
Background: Mice are widely accepted research models of great clinical significance. Maintenance of laboratory mice breed is an essential aspect for performing research activities in various fields of science. Infanticide is one of the prominent causes of litter loss during maintenance of laboratory mice stock. The present study is an effort to monitor the effect of change in ambient temperature of female mice below the normal range on cannibalism and infanticide during early postparturition phase...
2018: Journal of Animal Science and Technology
https://www.readbyqxmd.com/read/29710807/damage-detection-of-a-concrete-column-subject-to-blast-loads-using-embedded-piezoceramic-transducers
#19
Kai Xu, Qingshan Deng, Lujun Cai, Siuchun Ho, Gangbing Song
Some of the most severe structural loadings come in the form of blast loads, which may be caused by severe accidents or even terrorist activities. Most commonly after exposure to explosive forces, a structure will suffer from different degrees of damage, and even progress towards a state of collapse. Therefore, damage detection of a structure subject to explosive loads is of importance. This paper proposes a new approach to damage detection of a concrete column structure subjected to blast loads using embedded piezoceramic smart aggregates (SAs)...
April 28, 2018: Sensors
https://www.readbyqxmd.com/read/29710740/a-comparative-study-to-determine-the-optimal-intravitreal-injection-angle-to-the-eye-a-computational-fluid-structure-interaction-model
#20
Alireza Karimi, Reza Razaghi, Hasan Biglari, Hamideh Sabbaghi, Toshihiro Sera, Susumu Kudo
This study was aimed at investigating the role of IVI angle on the induced stresses and deformations among the components of the eye. Thereafter, the most optimal angle of IVI to minimize the complications of post IVI at the injection site on a basis of the computed stresses via a Fluid-Structure Interaction (FSI) computational model was proposed. IntraVitreal Injection (IVI) is broadly employed as a principal treatment of vascular vitro-retinal diseases. So far, there have been reports regarding the complications of post IVI and determine them as severe uveitis, tractional retinal detachment, IntraOcular Pressure (IOP) elevation as well as ocular haemorrhage...
April 20, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
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