Search results for "Trait"
showing 10 items of 1361 documents
Influence of the Novelty-Seeking Endophenotype on the Rewarding Effects of Psychostimulant Drugs in Animal Models
2015
Novelty seeking (NS), defined as a tendency to pursue novel and intense emotional sensations and experiences, is one of the most relevant individual factors predicting drug use among humans. High novelty seeking (HNS) individuals present an increased risk of drug use compared to low novelty seekers. The NS endophenotype may explain some of the differences observed among individuals exposed to drugs of abuse in adolescence. However, there is little research about the particular response of adolescents to drugs of abuse in function of this endophenotype, and the data that do exist are inconclusive. The present work reviews the literature regarding the influence of NS on psychostimulant reward…
Mpdz is a quantitative trait gene for drug withdrawal seizures
2004
Physiological dependence and associated withdrawal episodes can constitute a powerful motivational force that perpetuates drug use and abuse. Using robust behavioral models of drug physiological dependence in mice, positional cloning, and sequence and expression analyses, we identified an addiction-relevant quantitative trait gene, Mpdz. Our findings provide a framework to define the protein interactions and neural circuit by which this gene's product (multiple PDZ domain protein) affects drug dependence, withdrawal and relapse.
L'épandage des eaux résiduaires de sucreries
1974
National audience
Traits and emotions
2000
This paper reviews literature on traits and emotions focusing on both structure and management, or 'having' and 'doing'. The cognitive perspective of this paper implies that traits and emotions are viewed as provisions to frame people and their behaviours in situations in meaningful ways. The focus on the structure of traits thus implies considering the now broadly acknowledged Big Five model as a dimensional framework by which traits of people can be meaningfully organized. A similar position is taken with respect to emotions, given the recurrent finding of a two-dimensional model of emotions with Positive Affect and Negative Affect (PA and NA). Maintaining relevant distinctions between tr…
Illustrating a Family. The Printing Press and Political Issues in the "Ritratti della Prosapia et Heroi Moncadi nella Sicilia"
2021
In an early printed book, the presence of a large iconographic apparatus normally reveals a strong effort both in designing its shape and in the financial coverage needed to make it possible. Such effort can be fully explained by paying attention to the scope and target behind its conception. The two volumes of “Ritratti della Prosapia et heroi Moncadi nella Sicilia”, published in 1657 in Valencia, offer a notable example of the political exposure sought after by a noble family, that of Moncada, through the printing press technique and its power of circulation, combined with the attractiveness of family portraits. In particular, the 1657 book, written by Giovanni Agostino Della Lengueglia, …
Data service platform for sentinel-2 surface reflectance and value-added products: System use and examples
2016
This technical note presents the first Sentinel-2 data service platform for obtaining atmospherically-corrected images and generating the corresponding value-added products for any land surface on Earth (http://s2.boku.eodc.eu/). Using the European Space Agency’s (ESA) Sen2Cor algorithm, the platform processes ESA’s Level-1C top-of-atmosphere reflectance to atmospherically-corrected bottom-of-atmosphere (BoA) reflectance (Level-2A). The processing runs on-demand, with a global coverage, on the Earth Observation Data Centre (EODC), which is a public-private collaborative IT infrastructure in Vienna (Austria) for archiving, processing, and distributing Earth observation (EO) data (http://www.…
Shape and size in phytoplankton ecology: do they matter?
2007
This paper summarises the outcomes of the 14th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP). The authors mostly addressed their contributions on the following topics: morphological and morpho-functional descriptors of phytoplankton, size and shape structure of phytoplankton related to different kinds of environmental variables and the role of morphological and physiological plasticity of phytoplankton in maintaining the (apparently) same populations under different environmental conditions. Case studies from different kinds of aquatic environments (deep and shallow lakes, reservoirs with different age, purpose and trophic state, floodplain wetlands m…
SEXUALLY SELECTED TRAITS EVOLVE POSITIVE ALLOMETRY WHEN SOME MATINGS OCCUR IRRESPECTIVE OF THE TRAIT
2014
Positive allometry of secondary sexual traits (whereby larger individuals have disproportionally larger traits than smaller individuals) has been called one of the most pervasive and poorly understood regularities in the study of animal form and function. Its widespread occurrence is in contrast with theoretical predictions that it should evolve only under rather special circumstances. Using a combination of mathematical modeling and simulations, here we show that positive allometry is predicted to evolve under much broader conditions than previously recognized. This result hinges on the assumption that mating success is not necessarily zero for males with the lowest trait values: for examp…
Sexual signalling and viability in a wolf spider ( Hygrolycosa rubrofasciata ): measurements under laboratory and field conditions
1999
This study examined the crucial prediction of the conditional-handicap theory, the relationship between male sexual trait size and male viability, in the wolf spider Hygrolycosa rubrofasciata. In this species, males court females by drumming dry leaves with their abdomen, and males with the highest drumming rate enjoy highest mating success. We determined male drumming rate, body mass, and mobility, which reflects mate-searching activity, in relation to male survival. Because it is often difficult to know how results obtained from laboratory studies reflect the natural world, particularly when the measured variable is survival, we repeated our study in both laboratory and field conditions. …
PORTRAITS OF RUSSIAN WOMEN ENTREPRENEURS: IDENTIFICATION AND WAYS OF LEADERSHIP
2009
Entrepreneurship has developed in Russia during the past two decades, which is a short time to develop a firm business culture. Women are still a minority among entrepreneurs globally, also in Russia [Verhovskaya, O. and Dorokhina, M. (2008) GEM. Global Entrepreneurship Monitor, Executive Summary, Russia 2007, www.gemconsortium.org, 30.9.2008]. Our study focuses on Russian women entrepreneurship by means of an interview and photographs of 10 women entrepreneurs in the St. Petersburg area. We ask, how do they identify themselves in the current economic situation. Further, we ask if there is a specifically Russian type of women entrepreneurship and entrepreneurial identification. Finally, in …