Search results for "Valence"
showing 10 items of 2732 documents
Prevalencias de exposición a riesgos laborales en trabajadoras embarazadas (proyecto INMA-Valencia) Prevalence of exposure to occupational risks in p…
2009
Objetivo: Describir las prevalencias de exposición declarada a riesgos laborales en mujeres embarazas y analizar su relación con características sociodemográficas y laborales a partir de la información recogida en la cohorte INMA-Valencia. Métodos: La cohorte INMA-Valencia se inicia en 2004 con 855 mujeres embarazadas residentes en la provincia de Valencia. En la semana 32 de gestación se recogió información, mediante entrevista personal con cuestionario estructurado, sobre características sociodemográficas (edad, nivel de estudios, país de nacimiento), condiciones de empleo (actividad, ocupación, tipo de contrato, tipo de jornada) y exposición laboral autorreferida a carga física y riesgos…
Prevalencia del sexting en adultos jóvenes universitarios: motivación y percepción del riesgo
2021
El sexting es un fenómeno en auge entre adolescentes y adultos jóvenes que consiste en enviar mensajes y/o archivos de carácter sexual a través de los smartphones y las redes sociales. Si bien no existe un claro consenso en su conceptualización, una mala gestión del sexting puede derivar en una serie de peligros como el cyberbullying o la sextorsión. El sexting es un fenómeno clave a la hora de diseñar programas de educativos sexuales en adultos jóvenes El presente estudio tiene como objetivo averiguar el grado de prevalencia del sexting en población adulta joven universitaria. Para ello se administró una serie de instrumentos a 288 estudiantes de entre 18 y 25 años de la Universitat de Val…
Measuring self-esteem in Spanish adolescents: Equivalence across gender and educational levels
2015
Rosenberg's self-esteem scale (RSES) has been applied in many areas of psychology, highlighting the interest in the study of gender differences and educational level. At the same time, there was a methodological debate on its psychometric properties. Evidence points at a scale measuring a single trait confounded by a method factor associated to negatively worded items. The aim of the study is to examine RSES differences due to gender and educational level at the factor level, while controlling for the presence of method effects, in Spanish students. A completely a priori model was separately tested in four subsamples: college men and women, and high school men and women, and an invariance r…
Review of group A rotavirus strains reported in swine and cattle
2013
Group A rotavirus (RVA) infections cause severe economic losses in intensively reared livestock animals, particularly in herds of swine and cattle. RVA strains are antigenically heterogeneous, and are classified in multiple G and P types defined by the two outer capsid proteins, VP7 and VP4, respectively. This study summarizes published literature on the genetic and antigenic diversity of porcine and bovine RVA strains published over the last 3 decades. The single most prevalent genotype combination among porcine RVA strains was G5P[7], whereas the predominant genotype combination among bovine RVA strains was G6P[5], although spatiotemporal differences in RVA strain distribution were observ…
Rotavirus surveillance in europe, 2005-2008: web-enabled reporting and real-time analysis of genotyping and epidemiological data.
2009
International audience; BACKGROUND: The first European rotavirus surveillance network, EuroRotaNet, comprising 16 laboratories in 15 European countries, has been established. METHODS: Fecal samples from gastroenteritis cases positive for group A rotavirus antigen were collected from multiple European countries from 2005 to mid-2008 and were subjected to G and P genotyping. Epidemiological data collected included age, sex, geographical location, setting, dates of onset and sample collection, and clinical symptoms. RESULTS: A total of 8879 rotavirus-positive samples were characterized: 2129 cases were from the 2005-2006 season, 4030 from the 2006-2007 season, and 2720 from the ongoing 2007-20…
Mapping schistosoma haematobium for novel interventions against female genital schistosomiasis and associated HIV risk in kwazulu-natal, South Africa
2021
Abstract.Women with female genital schistosomiasis (FGS) have been found to have genital symptoms and a three-fold higher risk of HIV infection. Despite WHO recommendations, regular antischistosomal mass drug administration (MDA) has not yet been implemented in South Africa possibly because of the lack of updated epidemiological data. To provide data for future prevention efforts against FGS and HIV, this study explored Schistosoma haematobium prevalence in girls and young women and the effects of antischistosomal MDA, respectively. Urinary schistosomiasis and genital symptoms were investigated in 70 randomly selected secondary schools in three districts within KwaZulu-Natal and 18 primary …
Prevalence of early and late age-related macular degeneration in India: the INDEYE study.
2010
Purpose.: To estimate the prevalence of early and late age-related macular degeneration (AMD) in India. Methods.: Of 7518 people aged 60 years and older identified from randomly sampled villages in North and South India, 5853 (78%) attended an eye examination including fundus photography. Fundus images were graded according to the Wisconsin Age-Related Maculopathy Grading System. Results.: Fundus images were ungradable in 1587 people, mainly because of cataract. People 80 years of age and older were less likely to attend the eye examination and more likely to have ungradable images. For ages 60 to 79 years, the percent prevalence (95% confidence interval [CI]) were late AMD 1.2 (0.8–1.5); a…
Socially desirable responding:enhancement and denial in 20 countries
2015
This article investigated the dimensionality, measurement invariance, and cross-cultural variations of social desirability. A total of 3,471 university students from 20 countries completed an adapted version of the Marlowe–Crowne scale. A two-dimensional structure was revealed in the pooled sample, distinguishing enhancement (endorsement of positive self-description) and denial (rejection of negative self-description). The factor structure was supported in most countries; medium-sized item bias was found in two denial items. In a multilevel analysis, we found that (a) there was more cross-cultural variation in denial than enhancement; (b) females tended to score higher on enhancement where…
Streptococcus mutans and Streptococcus sobrinus detection by Polymerase Chain Reaction and their relation to dental caries in 12 and 15 year-old scho…
2012
A cross-sectional study was carried out to determine the prevalence of Streptococcus mutans and Streptococcus sobrinus and the association of the two in a random sample (n=614) of the child population of the region of Valencia (Spain). Saliva samples were analyzed by the quantitative polymerase chain reaction (PCR) method to study the relation of these bacteria to caries prevalence and the DMFT index. The prevalence of S. mutans was 35.4% at age 12 and 22.9% at age 15, that of S. sobrinus 18.9% and 8.4% and that of the S. mutans-S. sobrinus association 18.2% and 6.8% respectively. At both 12 and 15 years of age, the caries prevalence rates were lower in the Streptococcus-free group of child…
Mental Disease, Existence of Diagnostic, Use of Psychotropic Medication: Differences by Autonomous Communities under the National Health Survey 2006
2010
Fundamentos: En España no existe ningún estudio en el que se hayan tomado muestras representativas por Comunidades Autónomas (CCAA) para estudiar la morbilidad psíquica. Los objetivos de este trabajo son describir su prevalencia, la presencia de diagnóstico, el consumo de psicofármacos, el apoyo social y la salud autopercibida y la relación entre la morbilidad psíquica y el resto de variables, tanto a nivel nacional como de CCAA. Método: Estudio transversal. Fuente de información: Encuesta Nacional de Salud 2006, muestra 29.478 personas. Variables estudiadas: sociodemográficas, morbilidad psíquica (GHQ-12), estado de salud autopercibido, diagnóstico de trastorno mental, apoyo social funcion…