Is being overweight associated with engagement in self-injurious behaviours in adolescence, or do psychological factors have more “weight”?

Introduction The purpose of this study was to examine the prevalence of non-suicidal self-injurious behaviours (NSSI) among healthy weight and overweight adolescents and to examine the role of age, gender, weight status, treatment condition for weight control, and psychological variables (psychopathological symptoms and emotional skills) in the prediction of NSSI. Methods The study had a cross-sectional design, and participants (n = 370) were aged 14-19 years and were divided in three groups: 205 adolescents with normal weight, 82 adolescents from the community with overweight/obesity, and 83 adolescents with overweight/obesity and in outpatient treatment for weight control. Results The prevalence of these behaviours in the overweight community group (25.6 %) and in the overweight clinical group (14.5 %) was similar to their healthy weight peers (19 %). Not attending an outpatient treatment for weight control, higher psychopathology and less ability to regulate emotions predict the presence of NSSI. Conclusion Being overweight is not associated with NSSI, but psychosocial variables such as psychopathology, emotional deregulation and the absence of medical care predict these behaviours.info:eu-repo/semantics/publishedVersio

Skeletal Light-Scattering Accelerates Bleaching Response in Reef-Building Corals

Background At the forefront of ecosystems adversely affected by climate change, coral reefs are sensitive to anomalously high temperatures which disassociate (bleaching) photosynthetic symbionts (Symbiodinium) from coral hosts and cause increasingly frequent and severe mass mortality events. Susceptibility to bleaching and mortality is variable among corals, and is determined by unknown proportions of environmental history and the synergy of Symbiodinium- and coral-specific properties. Symbiodinium live within host tissues overlaying the coral skeleton, which increases light availability through multiple light-scattering, forming one of the most efficient biological collectors of solar radiation. Light-transport in the upper ~200 μm layer of corals skeletons (measured as ‘microscopic’ reduced-scattering coefficient, μ′S,m), has been identified as a determinant of excess light increase during bleaching and is therefore a potential determinant of the differential rate and severity of bleaching response among coral species. Results Here we experimentally demonstrate (in ten coral species) that, under thermal stress alone or combined thermal and light stress, low-μ′S,m corals bleach at higher rate and severity than high-μ′S,m corals and the Symbiodinium associated with low-μ′S,m corals experience twice the decrease in photochemical efficiency. We further modelled the light absorbed by Symbiodinium due to skeletal-scattering and show that the estimated skeleton-dependent light absorbed by Symbiodinium (per unit of photosynthetic pigment) and the temporal rate of increase in absorbed light during bleaching are several fold higher in low-μ′S,m corals. Conclusions While symbionts associated with low-μ′S,m corals receive less total light from the skeleton, they experience a higher rate of light increase once bleaching is initiated and absorbing bodies are lost; further precipitating the bleaching response. Because microscopic skeletal light-scattering is a robust predictor of light-dependent bleaching among the corals assessed here, this work establishes μ′S,m as one of the key determinants of differential bleaching response

Joint Audio-Visual Words for Violent Scenes Detection in Movies

International audienceThis paper presents an audio-visual data representation for violent scenes detection in movies. Existing works in this field consider either the audio or the visual information; or their shallow fusion. None has yet explored their joint de- pendence for violent scenes detection. We propose a feature which provides strong multi-modal audio and visual cues by first joining the audio and the visual features and then revealing statistically the joint multi-modal patterns. Ex- perimental validation was conducted in the context of the Violent Scenes Detection task of the MediaEval 2013 Multi- media benchmark. The obtained results show the potential of the proposed approach in comparison to methods using audio and visual features separately and other fusion meth- ods

Factors associated with immediate relapse among Bahraini heroin abusers

Demographic characteristics and factors associated with immediate relapse to heroin use among 40 male Bahraini heroin abusers were studied 1 week after discharge from the Drug and Alcohol Rehabilitation Unit in Bahrain. The mean age of the patients was 32.7 years, the age at which drug abuse began ranged from 12 years to 31 years, and the age range of regular use was 15-37 years. More than half the patients were single, unemployed, unskilled labourers with secondary-school education. The vast majority used heroin intravenously. Negative emotional states and drug-related cues were seen by the majority of the subjects as influential in their immediate relapse after discharge. Findings suggest that the treatment and rehabilitation unit in Bahrain should look into the issues of after-care.</jats:p

TRUMMAR - A trust model for mobile agent systems based on reputation

In this paper we present TRUMMAR, a reputation-based trust model that mobile agent systems can use to protect agents from malicious hosts. TRUMMAR is unique in being a truly comprehensive model since it accounts, in a unified framework, for a multitude of concepts such as prior-derived reputation, first impression, loss of reputation information with time, hierarchy of host systems (neighbors, friends, and strangers), and the inclusion of interaction results in reputation calculation. TRUMMAR is also general enough to be applied to any distributed system. We show simulation results that verify the correctness of this model and the effects of its various parameters.1

TRUMMAR - A trust model for mobile agent systems based on reputation

In this paper we present TRUMMAR, a reputation-based trust model that mobile agent systems can use to protect agents from malicious hosts. TRUMMAR is unique in being a truly comprehensive model since it accounts, in a unified framework, for a multitude of concepts such as prior-derived reputation, first impression, loss of reputation information with time, hierarchy of host systems (neighbors, friends, and strangers), and the inclusion of interaction results in reputation calculation. TRUMMAR is also general enough to be applied to any distributed system. We show simulation results that verify the correctness of this model and the effects of its various parameters.1

Zastosowanie potencjometrycznej metody wykrywania pęknięć w procesie renowacji narzędzi kuźniczych

This article deals with renovation of tools for volume forming. It analyzes the current state of the solved problems of renovation of tools for volume forming and possibilities of rationalizations and cost reduction by using non-destructive detection technologies for examination of inside defects.Praca dotyczy renowacji narzędzi do obróbki objętościowej. Prowadzono analizę metod i zagadnień związanych z renowacją narzędzi do kształtowania objętościowego oraz możliwości ich racjonalizacji. Uwzględniono zmniejszenie kosztów przez zastosowanie metod nieniszczących do oceny wad wewnętrznych narzędzi