Search results for "45"
showing 10 items of 1896 documents
Photoinduced lethal and sublethal toxicity of retene, a polycyclic aromatic hydrocarbon derived from resin acid, to coregonid larvae
2004
A comparative investigation on the acute phototoxicity of retene to vendace (Coregonus albula) and whitefish (C. lavaretus), both having pelagial larvae in spring, was conducted. To test the concept of early warning of sublethal biomarkers in relation to lethality to posthatch stages, we examined the effects of ultraviolet-B (UV-B) and retene on the levels of cytochrome P4501A (CYP1A) and heat shock protein 70 (HSP70) by exposing the animals to elevated levels of these factors for 48 and 72 h, respectively. Whereas UV-B and retene on their own were not lethal, simultaneous retene and UV-B exposure caused very high mortality to both species. The median lethal concentration (LC50; i.e., the c…
Choroidal thickness in glaucoma patients and glaucoma suspects measured by spectral domain coherence optical tomography
2012
Purpose: The aim of our study was to evaluate and compare retro-foveolar choroidal thickness (RFCT) of healthy subjects, individuals with intraocular hypertension, patients with primary open-angle glaucoma (POAG), patients with normal tension glaucoma (NTG) and patients with primary angle-closure glaucoma (PACG) by spectral domain optical coherence tomography (SD-OCT).Methods: Sixty-five healthy eyes, 30 eyes with intraocular hypertension, 90 eyes with POAG, 30 eyes with NTG and 20 eyes with PACG were included in this cross-sectional study. RFCT, foveolar retinal thickness and average retinal nerve fiber layer thickness (RNFL) were measured by SD-OCT (Spectralis HRA-OCT, Heidelberg Engineer…
Efectos del consumo de alcohol etílico en la cavidad oral: Relación con el cáncer oral
2004
El consumo de bebidas alcohólicas se encuentra asociado desde un punto de vista epidemiológico con un riesgo aumentado de desarrollar cáncer del tracto gastrointestinal superior. La realización de estudios que establezcan esa asociación resulta complicada, debido tanto a la confluencia de varios factores de riesgo en una misma persona, por ejemplo alcohol y tabaco, como a la falta de datos que puedan ser comprobables por el clínico. Por ello no se conoce con exactitud cual es el mecanismo patogénico responsable de este aumento de riesgo, ya que el etanol per se no ha demostrado ser carcinógeno. Se han propuesto distintas hipótesis que tratan de explicar como el etanol, ya sea por vía local …
Los Andamios de Leticia Armijo. Construyendo el triunfo comunitario y feminista de las mujeres frente a la violencia de género y el feminicidio
2021
Predicting the 2000‐m Rowing Ergometer Performance from Anthropometric, Maximal Oxygen Uptake and 60‐s Mean Power Variables in National Level Young R…
2020
Abstract Many studies reported various relationships between 2000-m rowing performance and anthropometric as well as metabolic variables, however, little is known about 60-s mean power in elite youth athletes. The aim of this study was to develop different regression models to predict 2000-m rowing indoor performance time (t2000) using anthropometric variables, maximal oxygen uptake (VO2max) and mean power established during a 60-s all-out test (W60) in national elite youth rowers. Fifteen youth male Italian rowers (age: 15.7 ± 2.0 years; body height: 176.0 ± 8.0 cm; body mass: 71.2 ± 10.0 kg) performed an incremental maximal test, a 60-s all-out test and a 2000-m race simulation using a Co…
GC (GC VITAMIN D BINDING PROTEIN ) GĒNA ĢENĒTISKO VARIĀCIJU SAISTĪBA AR 1. TIPA CUKURA DIABĒTU LATVIJAS POPULĀCIJĀ
2022
Galvenais visu D vitamīna metabolītu saistīšanas vai transportēšanas proteīns ir GC gēns. GC gēna ģenētiskās variācijas ir saistītas ar dažādām autoimūnām slimībām, kā 1. tipa cukura diabētu (1TCD) dažādās populācijas. GC gēna polimorfismi rs4588 un rs7041 tiek pētīti kā potenciāli 1. tipa cukura diabēta ietekmējoši faktori. Šī pētījuma mērķis bija analizēt GC gēna viena nukleotīda polimorfisma (SNP; single nucleotide polymorphism) rs4588 A>C un rs7041 T>G asociāciju ar 1. tipa cukura diabētu Latvijas populācijā. Lai noskaidrotu šo abu polimorfismu potenciālo ietekmi uz saslimšanas iespējamību, tika genotipēti 185 1. tipa cukura diabēta slimnieku DNS paraugi un 253 kontroles grupas paraugi,…
A methodological look at the controversy about the influence of salt intake on cardiovascular risk
2012
Cardiovascular diseases are a major cause of premature death and disability. They represent an extraordinarily strong financial burden upon health-care systems in ‘‘developed’’ countries. Elevated blood pressure is a major cause of cardiovascular disease. There is much evidence that cardiovascular risk increases from normal blood pressure (i.e., from 115/75 mmHg upwards) [1]. Overwhelming evidence shows that reducing salt intake from 9–12 g/day to 5–6 g/day lowers blood pressure [2]. Blood pressure is a surrogate endpoint, but may be related to a reduction of morbidity and mortality due to cardiovascular causes. Thus, intensive support and encouragement to cut down on the intake of salt in …
La font de Llíria: Edició del primer milacre vicentí publicat (1822)
2014
El present treball estudia el primer milacre vicentí de què es té constància que va ser imprés: La font de Llíria. Editat anònim a València, el 1822, per primera vegada, és una mostra del teatre popular i de carrer del segle XIX i, a més de ser reeditat en diferents ocasions, arribà a inspirar altres autors posteriors. The present work studies the first trext printed wich is considered a milacre (dramatic piece about Saint Vincent Ferrer). La font de Lliria was published anonymously in Valencia, in 1822, for the first time, and it is a sample of popular theater of the nineteenth century. It has been reedited on several occasions, and it has come to inspire later authors.
Evaluation of Standard Precautions Compliance Instruments: A Systematic Review Using COSMIN Methodology
2023
Background: Standard precautions (SPs) are first-line strategies with a dual goal: to protect health care workers from occupational contamination while providing care to infected patients and to prevent/reduce health care-associated infections (HAIs). This study aimed at (1) identifying the instruments currently available for measuring healthcare professionals’ compliance with standard precautions; (2) evaluating their measurement properties; and (3) providing sound evidence for instrument selection for use by researchers, teachers, staff trainers, and clinical tutors. Methods: We carried out a systematic review to examine the psychometric properties of standard precautions self-assessment …
Self-esteem and intentions mediate perceived fitness with physical activity in Finnish adolescents with long-term illness or disabilities
2014
Background: The International Classification of Functioning, Disability and Health (ICF) is recognised as the common language in disability research. However, personal factors in the ICF are not explicitly coded because of cultural differences that influence physical activity (PA) participation. The ICF suggests using fitness as a personal factor, as well as other psychological assets. Intentions may serve as such psychological assets and studies on the antecedents to intentions which prompts PA behaviours is lacking in adolescent long term illness or disability (LTID) populations. Objective: The purpose of this study was to report how ICF personal factors can influence participation in PA.…