Search results for "ONCE"
showing 10 items of 4997 documents
Expression and characterization of the recombinant juvenile hormone epoxide hydrolase (JHEH) from Manduca sexta.
1998
The cDNA of the microsomal Juvenile Hormone Epoxide Hydrolase (JHEH) from Manduca sexta was expressed in vitro in the baculovirus system. In insect cell culture, the recombinant enzyme (Ms-JHEH) was produced at a high level (100 fold over background EH catalytic activity). As expected, Ms-JHEH was localized in the microsomal fraction with a molecular mass of approximately 50 kDa. Ms-JHEH showed a substrate and inhibitor spectrum similar to the wild type JHEH isolated from eggs of M. sexta. Its enzymatic activity was the highest for Juvenile Hormone III. Ms-JHEH hydrolyzed several trans-epoxides faster than cis-epoxides. A putative hydroxyl-acyl enzyme intermediate was isolated suggesting a …
SETAC GLB and SETAC Europe SAC: a liaison promoting the next generation of ecotoxicologists and environmental chemists
2018
Environmental sciences Europe 30(1), 41s12302-018-0171-z (2018). doi:10.1186/s12302-018-0171-z
Central, Eastern and East-Central Europle: on the History and the Current State of Conceptualization and Demarcation of Concepts
2019
The article is devoted to a historical overview and discussion of the current understanding and demarcation of the concepts “Central Europe”, “Eastern Europe” and “Central Eastern Europe”. The analysis is performed from a descriptive and comparative point of view, including a step‑by‑step generalization and separation of the above concepts and the verification of how natural, artificial or instrumental their character is, as well as by analysing their contrastive properties. In conclusion, the author has argued that the integration / disintegration and democratization / autocratization processes in the countries that used to be or now constitute different sub‑regions of Europe during the 20…
“Being together in the locker room is great, but showering together – just forget it!” The Janus Face of the Wardrobe Practice in Physical Education
2017
The aim of this study is to examine the wardrobe context among students in physical education (PE) in lower secondary school and describe their various experiences of the atmosphere in the locker room and their showering habits. 16 semi structured in-depth interviews with eight boys and eight girls, all aged 15, in the 10th grade (third and final year of lower secondary school) were conducted to grasp some of the ongoing interactions between students and the context of the wardrobe practice before and after PE lessons. The planning of the interviews is grounded in a variety of topics such as the class environment, the influence of teacher behavior, self-evaluation, and the role of social me…
An Approach to Measuring Perceived Quality of Life in the City Through a Formative Multidimensional Perspective
2016
Cities compete to attract multinational companies, more tourism flows and to improve the quality of life of citizens. From a public service orientation, perceived quality of life should become a strategic input. In the last decades, scientists offered several alternative approaches to defining and measuring quality of life: social indicators, subjective measures and economic indices all with their strengths and weaknesses. This chapter conceptualizes and operationalizes perceived quality of life in the city from the perspective of its residents, proposing and validating a new measure with six dimensions through a formative index. The conceptual model and the hypotheses are tested using Part…
Application of the threshold of toxicological concern (TTC) to the safety evaluation of cosmetic ingredients.
2007
The threshold of toxicological concern (TTC) has been used for the safety assessment of packaging migrants and flavouring agents that occur in food. The approach compares the estimated oral intake with a TTC value derived from chronic oral toxicity data for structurally-related compounds. Application of the TTC approach to cosmetic ingredients and impurities requires consideration of whether route-dependent differences in first-pass metabolism could affect the applicability of TTC values derived from oral data to the topical route. The physicochemical characteristics of the chemical and the pattern of cosmetic use would affect the long-term average internal dose that is compared with the re…
Questions raised in science education : a Colombian-Spanish comparative study
2016
RESUMEN: La formulación de preguntas es un potente recurso para el aprendizaje de las ciencias. El objetivo del presente trabajo fue evaluar el desarrollo de la competencia metacognitiva por medio de la formulación de preguntas. En este estudio se usaron dos dispositivos experimentales de ciencias con un comportamiento inesperado. Se pidió a los participantes realizar preguntas destinadas a comprender su funcionamiento. La evaluación contrastó el desempeño de estudiantes colombianos con estudiantes españoles equivalentes. Los resultados mostraron que los colombianos formulan significativamente más preguntas en general, y más preguntas de alta calidad, que los estudiantes españoles. Se concl…
Fifty shades of blue : Classification of music-evoked sadness
2016
It has been repeatedly shown that sad music induces mainly pleasant or mixed emotions, and is particularly relevant for self-regulation goals. However, this is not entirely compatible with the view that sadness is one of the basic emotions experienced in the face of an unpleasant event or a loss. Also, a distinction between grief and sadness is often drawn, which seemingly does not have relevance in relation to musical experiences. The discrepancy between the positive accounts of emotions associated with sad music and those present in ordinary sadness may be related to the previously unacknowledged spectrum of affects associated with music-related sadness. The present study aims to expose t…
Decision-making Styles in Adolescent Offenders and Non-offenders: Effects of Emotional Intelligence and Empathy
2021
The literature indicates that adolescents with delinquent behavior have greater difficulty making rational decisions and show lower emotional intelligence and empathy. Decision-making is a set of complex processes associated with neurobiological, cognitive, emotional, and social factors which help regulate and guide behavior, which could be influenced by emotional intelligence and empathy. A comparative, correlational, and predictive study was conducted to analyze relationships and influence of emotional intelligence and empathy in decision-making styles in adolescent offenders and non-offenders. 808 Colombian adolescents between 14 and 18 years of age participated (50p offenders). The resu…
Prosocial reasoning and emotions in young offenders and non-offenders
2017
Abstract The aim of this study was to analyse the cognitive processes (prosocial moral reasoning, perspective taking) and emotional processes (empathic concern, emotional instability, state-trait anger) which interact in predicting aggressive behaviour and prosocial behaviour of adolescents who have committed a crime and those who have not, for the purpose of establishing the predictor variables in both groups. Participants were 440 adolescents, 220 of them young offenders residing in four youth detention centres in Valencia, in which they were serving court sentences (67.3% men and 32.7% women). The other 220 were enrolled in public and private schools within the metropolitan area of Valen…