Search results for " LAB"
showing 10 items of 2393 documents
Prevalencia de riesgos psicosociales en personal de la administración de justicia de la comunidad valenciana (España)
2016
El objetivo del estudio fue evaluar los factores psicosociales en el trabajo del personal de justicia de la Comunidad Valencia (España) para identificar la prevalencia de riesgos psicosociales. Participaron 402 trabajadores (28.11 % hombres) incluyendo gestores, tramitadores y auxiliares sociales. Se evaluó con la Batería UNIPSICO (incluye factores de demanda, factores de recursos y consecuencias de los riesgos psicosociales). Los principales riesgos fueron la sobrecarga de trabajo (46.02 % de participantes en situación de alto riesgo) dentro de las demandas, la falta de recursos para realizar el trabajo (76.37 % en situación de alto riesgo) y la falta de autonomía (67.41 % en situación de …
Psychosocial risks at work and occupational health
2012
Los cambios que han ocurrido en las últimas décadas sobre los procesos laborales y el diseño del trabajo son de carácter sociodemográfico, económico, político, y tecnológico. Estos cambios han originado nuevos riesgos psicosociales en el trabajo que afectan a la salud y la calidad de vida laboral, pues incrementan los niveles de estrés de los trabajadores. El objetivo del estudio es presentar este tipo de riesgos, sus consecuencias, y algunas recomendaciones para promover la salud en el trabajo como estrategia para mejorar la salud pública de la población. El estudio se estructura en cinco puntos en los que: (1) se presenta el concepto de factores y riesgos psicosociales en el trabajo, (2) …
Satisfacción laboral en pediatras del conurbano bonaerense, Región Sur
2007
Objetivo: El objetivo de este estudio fue determinar la prevalencia de satisfacción laboral en una muestra de pediatras. Pacientes y Método: La muestra la formaron 123 pediatras que trabajaban en Servicios de Pediatría de hospitales generales, 89 mujeres (72,4%) y 34 hombres (27,6%). El estudio fue transversal, no aleatorizado. La satisfacción laboral se evaluó mediante una escala de 8 ítems del Cuestionario de Satisfacción laboral S20/23¹. Resultados: El 13% de los participantes manifestaron estar insatisfechos o muy insatisfechos con los aspectos evaluados de su trabajo. El 89,4%> de los participantes manifestaron estar muy insatisfechos o insatisfechos con el salario (89,4%), la higiene …
Induced abortion and risk of small-for-gestational-age birth.
2007
Objective: To investigate the possibility of an association between previous induced abortion and subsequent birth of a small-for-gestational-age (SGA) infant. Design: Case-control study. Setting: General and university hospitals. Methods: Cases were 555 women who delivered SGA babies. Controls were 1966 women who gave birth at term (>37 weeks of gestation) to healthy infants of normal weight on randomly selected days at the hospital where cases had been identified. All women in the case and control categories were interviewed on the obstetric wards by one of a team of six interviewers. During the interviews, information was obtained regarding general socio-demographic factors, personal cha…
Occupational risks prevention and their relationships to workers' gender
2013
OBJETIVO: el objetivo de este estudio consistió en analizar si existen diferencias en la gestión preventiva llevada a cabo en varias empresas que presentaron enfermedades profesionales en función del género de los trabajadores. MÉTODOS: se analizó una muestra de 302 trabajadores, siendo el 31,1% mujeres, de empresas donde se había declarado enfermedad profesional en la provincia de Valencia (España). Los datos se recogieron mediante un cuestionario con 40 preguntas. RESULTADOS: los resultados indicaron que en estas empresas se realizaba una gestión preventiva en la que el plan de prevención y la participación de los trabajadores eran las actividades que con menor frecuencia se aplicaban, y …
Nutritional Characterization of Sea Bass Processing By-Products
2020
The consumption of functional foods and nutraceuticals is gaining more importance in modern society. The exploration of alternative sources and the utilization of by-products coming from the food industry are gaining more importance. The present study aimed to characterize the nutritional value and potential use of sea bass by-products as a source of high-added-value compounds for the development of supplements. The chemical composition (moisture, protein, fat, and ash contents) and profiles of amino acids (high-performance liquid chromatography coupled to a scanning fluorescence detector), fatty acids (gas chromatography coupled to a flame ionization detector), and minerals (inductively co…
Induction of apoptosis in the blue mussel Mytilus galloprovincialis by tri-n-butyltin chloride
2001
Induction of apoptosis by tri-n-butyltin (TBT) in gill tissue of the mussel Mytilus galloprovincialis was investigated. The terminal dUTP nick-end labeling technique (TUNEL) was used to detect cells displaying DNA fragmentation within gill structures. Genomic DNA fragmentation was detected as characteristically ladder-like pattern of DNA fragments induced by single injection of different doses of TBT (1-5 microg/g) below the mantle, directly into the pallial fluid, after 24 h of incubation. DNA degradation of higher order DNA structure, as well as reduced G(0)/G(1) cell cycle region (the sub-G(1) region) was detectable after 1.5 h of TBT incubation. Presence of apoptotic cells in mussels' g…
Validation of brain extracellular glycerol as an indicator of cellular membrane damage due to free radical activity after traumatic brain injury.
2008
Following severe traumatic brain injury (TBI), increasing oxygen delivery to the brain has been advocated as a useful strategy to reverse mitochondrial dysfunction and improve neurological outcome. However, this might also promote overproduction of free radicals, responsible for lipid peroxidation and hence brain cell damage. Therefore, a method for monitoring this potential adverse effect in humans is desirable. Glycerol, an end product of phospholipid breakdown, easily detectable in the human brain by means of microdialysis, might represent a reliable indicator of free radical-induced cell membrane damage. Brain microdialysates were collected from 24 adult male Sprague-Dawley rats over a …
Extraction of glyphosate by a supported liquid membrane technique.
2000
The possible application of the supported liquid membrane (SLM) technique for the extraction of glyphosate is presented. For the extraction of this compound the SLM system has been applied with utilisation of Aliquat 336 as a cationic carrier incorporated into the membrane phase. The extraction efficiency of glyphosate [N-(phosphonomethyl)glycine] is dependent on the donor phase pH, carrier concentration in the organic phase and NaCl concentration in the acceptor phase. The optimal extraction conditions are: donor phase pH>11, acceptor phase of 2 M NaCl solution and the organic phase composed of 20% (w/w) Aliquot 336 solution in di-hexyl ether. Counter-coupled transport of chloride anions f…
Demonstration of endogenous lectins in synovial tissue.
1991
We have recently shown that synoviocytes and extracellular matrices exhibit distinct patterns of carbohydrate expression. Their biological relevance is however not known. The purpose of the present study was to find out whether human synovial tissue would also show a specific receptor pattern for complex sugar molecules. Endogenous lectins were displayed by means of biotinylated neoglycoproteins and sulfated polysaccharides in paraffin-embedded material or cryosections. In addition to certain carbohydrate components that are known to be constituents of the carbohydrate part of cellular glycoconjugates, our panel included heparin and fucoidan, a sulfated fucose. Binding sites were shown usin…