Search results for "STRESS"
showing 10 items of 6278 documents
Off–on BODIPY-based chemosensors for selective detection of Al3+ and Cr3+versus Fe3+ in aqueous media
2014
[EN] Two new off-on BODIPY-based chemosensors that are highly sensitive for trivalent cations in aqueous solutions are described. Compound 2 exhibits selective sensing of Al3+ and Cr3+ versus Fe3+ through two different channels (UV-vis and fluorescence).
Two decades of the dark side in the information systems basket: suggesting five areas for future research
2016
Despite its benefits, information technology (IT) use is associated with serious negative effects on individuals. For example, technostress and IT addiction can harm IT users’ organizational performance and everyday well-being. Such dark side phenomena have become more evident since IT has transmuted into a major component of humans’ job routines and private lives. However, since current information systems (IS) research on the dark side is in an early and fragmented stage, there is a need for a synthesis. To address this need, we conducted a literature review of 37 articles published in the IS basket journals between 1995 and 2015. We detected four key phenomena: technostress, information …
Coping with technostress: when emotional responses fail
2017
In this study, we develop two new perspectives for technostress mitigation from the viewpoint of coping. First, we examine users’ emotional coping responses to stressful IT, focusing specifically on distress venting and distancing from IT. As these mechanisms may not always be effective for individuals’ well-being, we extend our approach to self-regulation in coping, which concerns general stress-resistance. Thus, we specifically study how IT control moderates the effect of emotional coping responses to stressful situations involving IT use. We test the proposed model in a cross-sectional study of IT users from multiple organizations (N=1,091). The study contributes to information systems l…
Coping with pandemics using social network sites: A psychological detachment perspective to COVID-19 stressors
2022
Prior research has often portrayed information technology (IT) as a stressor. In this paper, we propose and demonstrate that IT can also be an effective means of coping with life stressors, including those induced by pandemics such as COVID-19. We thus deviate from the common IT-as-a-stressor perspective and adopt an IT-as-a-coping-mechanism viewpoint. To this end, we apply the stressor-detachment model from organisational psychology to the use of social network sites (SNSs) in coping with stressors wrought by the COVID-19 pandemic. We examine psychological well-being as our dependant variable and introduce psychological detachment through SNS use as a mediator and moderator of the associat…
Strain state analysis of InGaN/GaN - sources of error and optimized imaging conditions.
2006
Transmission electron microscopy investigation of the chemical composition of In x Ga 1-x N/GaN layers by strain state analysis can lead to substantial artefacts. We evaluated simulated images in dependence of specimen thickness, specimen orientation and objective lens defocus. We observed that the measurement is in agreement with the true strain profile for certain conditions only. An analysis of error sources revealed that artefacts are mainly caused by a combination of delocalization and the composition dependence of the phases of the beams contributing to the image formation. The delocalization effect is minimized for interference of the undiffracted beam with one of the 000 ± 2 beams. …
CEFLES2: The remote sensing component to quantify photosynthetic efficiency from the leaf to the region by measuring sun-induced fluorescence in the …
2009
The CEFLES2 campaign during the Carbo Europe Regional Experiment Strategy was designed to provide simultaneous airborne measurements of solar induced fluorescence and CO<sub>2</sub> fluxes. It was combined with extensive ground-based quantification of leaf- and canopy-level processes in support of ESA's Candidate Earth Explorer Mission of the "Fluorescence Explorer" (FLEX). The aim of this campaign was to test if fluorescence signal detected from an airborne platform can be used to improve estimates of plant mediated exchange on the mesoscale. Canopy fluorescence was quantified from four airborne platforms using a combination of novel sensors: (i) the prototype ai…
Impact of the Relationship of Stress and the Immune System in the Appearance of Alzheimer’s Disease
2016
The understanding of how the immune system works, as well as its relationship with the stress level, seems to be important at the start of the Alzheimer’s disease (AD). To analyze this, immunoglobulin A (IgA) and cortisol in saliva were measured using ELISA in patients with mild AD and healthy volunteers, and the production of both biomarkers was compared and correlated. In participants without AD, IgA was higher when cortisol was lower, and the opposite happened in participants with AD, with the quantification in saliva being a suitable method to determine it. Sin financiación 1.635 SJR (2017) Q1, 12/108 Geriatrics and Gerontology, 239/2885 Medicine (miscellaneous), 64/529 Psychiatry and M…
Immunological and psychological responses to psychosocial stress in caregivers of autistic offspring
2011
IntroductionCaregivers of relatives with chronic diseases has shown lower rest levels of immunoglobulin A than non-caregivers (Gallagher et al., 2008). In response to mental stress, IgA levels used to be increased in healthy population (Okamura et al. 2010). Scarce studies have been focused on immunological effects of caregiving in response to stress, and the results are controversial. To our knowledge, there are no studies stressing this field in chronically stressed populations such as caregivers of autistic offspring.Objectives and aimsEvaluate whether caregivers present different psychosocial and immunological responses to acute stress than non-caregivers, as well as what is the role of…
Part I: Relationship among Training Load Management, Salivary Immunoglobulin A, and Upper Respiratory Tract Infection in Team Sport: A Systematic Rev…
2021
Immunoglobulin A (IgA), which is the first line of defense against upper respiratory tract viruses, has been related with training load management. This article aimed to systematically identify and summarize (1) the studies that have found a relationship between training load and salivary IgA in team sports, and (2) the studies that have highlighted a relationship between IgA and upper respiratory tract infection (URTI) in team sports. A systematic review of relevant articles was carried out using two electronic databases (PubMed and WoK) until 3 October 2020. From a total of 174 studies initially found, 24 were included in the qualitative synthesis. This systematic review confirmed that lo…
Disulfide stress and its targets in acute pancreatitis
2014
Under physiological conditions, the balance between ROS production and removal properly maintains the intracellular redox-sensitive signaling as well as the appropriate status of protein thiols and disulfides. However, inflammation among other factors can modify this balance causing a rapid increase in intracellular ROS levels and hence thiol oxidation, eventually leading to oxidative stress. In the case of acute pancreatitis, both redox signaling and oxidative stress seem to contribute to the progression of the severe form of the disease. In this review we will focus on the reversible oxidation of protein cysteines during the course of acute pancreatitis. We describe disulfide stress in an…