Search results for "TRES"

Stress-strain analysis of specimens subjected to tensile loading during moisture uptake

2015

Abstract: A robust and efficient numerical method for the calculation of the internal stress state that develops within structures subjected to mechanical and steady state or transient hygroscopic loading conditions, has been developed. The method encompasses a layer by layer approach whereby the structure is discretised into plies with different material properties corresponding to the different ply moisture content. The proposed method has been validated against finite element solutions, and results from its application on a fully characterised EDT (technical name) polymer binder are presented. The impact of the moisture induced viscoelastic behaviour on the structural response of the cas…

Propuesta metodológica para estimar la vulnerabilidad local por inundación en áreas turísticas costeras de clima árido : aplicación al litoral de Aro…

2020

En este trabajo se propone una metodología cualitativa para el cálculo de un índice de vulnerabilidad por inundación. Partiendo de información disponible en muchas administraciones locales, la misma se aplica en el litoral de Arona y Adeje, áreas turísticas en el suroeste de Tenerife que cuentan con una oferta alojativa superior a las 90.000 plazas, como consta en el Instituto de Estadística del Gobierno de Canarias (ISTAC, 2018). De la labor desarrollada a nivel de parcela catastral resulta un índice de vulnerabilidad que oscila entre un valor mínimo de 0,00-0,03 y un máximo >0,30, así como su diferenciación espacial según la antigüedad de las urbanizaciones turísticas. El empleo del ín…

Estrés laboral, afrontamiento y sus consecuencias: el papel del género

2006

El estrés laboral es especialmente relevante en el área de la organizaciones y se convierte en una variable explicativa central a la hora de entender ciertos fenómenos como la insatisfacción laboral, los altos niveles de absentismo y la propensión al abandono (Sonnentag y Frese, 2003). La literatura sobre estrés establece que existe una relación positiva entre los estresores laborales (fuentes de estrés o tensión) y el distrés (síntomas psicológicos y/o físicos del individuo que experimenta estrés) (p. ej. Osca, González-Camino, Bardera y Peiró, 2003; Torres-Ivarez, San Sebastián, Ibarretxe y Zumabale, 2002) que lleva a la aparición de resultados organizacionales negativos (Boada, de Diego,…

Effects of an incremental maximal endurance exercise stress-induced cortisol on cognitive performance

2019

Exercise; Cognitive functions; Cortisol Ejercicio físico; Funciones cognitivas; Cortisol Exercici físic; Funcions cognitives; Cortisol Objectives: It can be hypothesized that cognitive performance decreases after fatigue protocol when it coincides with the maximum peak of cortisol. The first aim of this study was to elucidate the effects of a single bout of high intensity exercise on behavioural (i.e., attention and memory) and physiological (i.e., salivary cortisol) responses. The second objective was to evaluate the effect of the performance of the cognitive tasks on cortisol levels. Methods: Thirty-four physically active men (at least 5 days/week of physical activity practice) 38.11 (1.5…

Effect of Mycorrhizal Inoculation on Melon Plants under Deficit Irrigation Regimes

2023

The shortage of good quantity and quality of water for irrigated agriculture is a major problem in arid and semiarid regions. To deal with this problem, deficit irrigation (DI) or arbuscular mycorrhizal fungi (AMF) inoculation have been proposed and adopted for many crops as a tool to save water, or to improve crop tolerance to drought stress. An experiment was conducted for two consecutive years to evaluate the effect of mycorrhizal inoculation on the physiological, morphological, yield, and quality characteristics of melon plants grown under deficit irrigation. Melon crop (Cucumis melo L. cv. Helios) was grown under field conditions adopting a split-plot design with four replications, whe…

PROOXIDATIVE MECHANISM OF ACTION OF PERACETIC ACID IN CELLULAR MODEL OF ACUTE PANCREATITIS

Sprint and endurance training in relation to redox and inflammatory status and biomarkers of aging in master athletes

2020

Purpose Studies have shown a positive influence of intense athletic training on several biomarkers of aging, but it remains unclear whether this influence is dependent of exercise-training-mode. This study compared redox balance, cytokine levels and biomarkers of aging between master sprinters and endurance athletes, as well as in young and middle-aged individuals as controls. Methods Participants were male master sprinters (SA, 50±8.9yrs; n=13) and endurance runners (EA, 53±8.2yrs; n=18) with remarkable athletic experience (∼25yrs of practice), besides untrained young (YC, 22.7±3.9yrs; n=17) and age-matched controls (MC, 45.5±9.8yrs; n=12). Anamnesis, anthropometrics, biomarkers of aging, …

Trichuris trichiura egg extract proteome reveals potential diagnostic targets and immunomodulators.

2021

The proteomic analysis was performed at the proteomics facility of SCSIE, University of Valencia (Burjassot, Spain) that belongs to ProteoRed, PRB2-ISCIII, Madrid, Spain. We also thank Dr. Tatiana Corey, Dr. Amy Beierschmitt and Dr. Pompei Bolfa for their support during sample collection.

Cerebral plasmogens and aldehydes in senescence-accelerated mice P8 and R1 : Acomparison between weaned, adult and aged mice

2006

International audience; In contrast with senescence-accelerated mice R1, SAM P8 show abnormal aging characteristics. Changes occurring during aging could be mainly caused by free radical reactions. The brain is a plasmalogen-rich tissue. These particular phospholipids may act as endogenous antioxidants, be oxidized and release long chain aldehydes and α-hydroxyaldehydes during oxidative stress. The aim of this study was to examine by GC/MS the age- and strain-related levels of plasmalogens, aldehydes and α-hydroxyaldehydes in brain homogenates of SAM P8 and R1 at weaning, 5 months and 9 months of age in order to better understand the differences between both strains. In SAM R1, the evolutio…

In senescence accelerated mouse (SAM) heart, the protective effect of postconditioning is associated with a decrease in oxidative stress

2006

Supplément vol.27, World Congress of Cardiology 2006; International audience; The senescent heart susceptibility to ischemia (I) triggers multiple processes especially oxidative stress but precise mechanisms remain unclear. New animal’s models such as "Senescence Accelerated Mouse" Prone 8 (SAM-P8) and their control (SAM-R1) can be useful for a better understanding of aging process. We studied heart adaptation of these mice to I/reperfusion (R) sequence and a putative cardioprotector effect of post-conditioning (PC). Isolated working mice (8 months) hearts were subjected to a global total ischemia (20 minutes at 38°C), followed by 40 minutes of reperfusion. 4 groups of hearts were constitut…