[A comprehensive community model to prevent and address adolescent health problems].

This article presents a model for building a comprehensive community response to adolescent health problems. The approach is comprehensive in that it includes prevention and promotion, assistance and protection, and involves different sectors and areas of the State and the community. We describe the conceptual framework and principles of the model, developed based on debates regarding health promotion and collective health as well as the work experiences of the research team in different communities in Argentina over the last 15 years.

Parental Perspectives of Barriers to Physical Activity in Urban Schoolchildren With Asthma.

Objective: Physical activity (PA) levels are low in today's youth and may even be lower in those with asthma. Barriers to PA have not been well studied in inner-city minority children with asthma. We conducted a qualitative study to characterize parental perceptions of barriers to PA and ways to improve PA levels in children with asthma.

[A comprehensive community approach to problematic drug use: building a model].

Guidelines for a model of a community approach to problematic drug use are presented. These guidelines include the dimensions of comprehensiveness, social vulnerability, and care practices and knowledge in a broad sense. The characterization of these dimensions leads to what the authors call a comprehensive community model in contrast to a normative moral model.

Negative differential resistance: gate controlled and photoconductance enhancement in carbon nanotube intraconnects.

Intraconnects, as-grown single-walled carbon nanotubes bridging two metal electrodes, were investigated as gated structures. We show that even with a seemingly "ohmic" contact at zero gate voltage one observes negative differential resistance (NDR) at nonzero gate bias. Large differential photo conductance (DPC) was associated with the NDR effect raising hopes for the fabrication of novel high-speed optoelectronic devices.

Carbon nanotubes bridges spanning across metal electrode tips.

Systematically growing carbon nanotubes at exact locations within an optoelectronic circuit is a long sought goal. Here we electrically and optically characterize individual CNT bridges spanning across pre-fabricated and addressable metal tips.

Small-Signal Performance and Modeling of sub-50nm nMOSFETs with f above 460-GHz.

We have fabricated and tested the performance of sub-50nm gate nMOSFETs to assess their suitability for mixed signal applications in the super high frequency (SHF) band, i.e. 3-30GHz.

Domestic violence--an emerging health issue.

The aim of this paper is to explain some of the aspects included in the concept of family violence, to summarize the principal theoretical models proposed to explain it, as well as to describe the principal syndromes included within the scope of the concept: battered woman, courtship violence, child-abuse, child sexual-abuse, child witnessing violence, sibling violence and elderly violence. Particular emphasis is put on the description of the effects that different types of family violence cause on the individuals' health.

[Sexual models in adolescents and adults].

Findings of a research that has been carried over among 13- to 19-year-old young people, their parents, and their teachers with regard to sex models of all involved are presented. Subjects were from the city of Buenos Aires, Argentina. Social representations of the three subject samples involved about sex behavior, certain values linked to sexuality, and certain gender patterns are discussed.

[Stress of teachers and students' violence].

A training program for secondary school teachers, by the name of Stress inoculation, is presented. It is aimed at coping with conflictive situations likely to arise in a classroom. Adapted from D.

[Patterns of alcohol consumption among families with chronic somatic patients].

This paper intends a description of family climate likely to be found in low-class low-earnings sectors, sick persons suffering from chronic somatic pathologies are living in. The biopsychosocial model was the analysis model researchers selected to carry on the study: It allows the detection of risk situations connected with the different ways a family milieu casts its influence when an unfavorable evolution of the illness involved is at stake, i.e.

[An AIDS-related cognitive map in a sample of drug abusers in Buenos Aires City].

This paper is an approach to AIDS as a topic among a drug abusers sample of the city of Buenos Aires. Research was carried out on the basis of a qualitative methodology. In an attempt at surveying opinions and attitudes of such a sample as regards AIDS (i.

[New paradigms in human sciences].

In this paper, the author describes the jump of paradigm in Human Sciences the conceptual model introduced by G. Bateson implies inasmuch as it shifts emphasis from the analysis of facts to formal organization of reality, and defines 'mental' as a concept which comprehends an organism with relation to its surroundings. The author reviews the main ideas Bateson extracted from both the systems theory and cybernetics in order to outline his 'ecology of human mind'.

[Medico-psychological approach to families with chronic patients].

In this paper, a clinical psychological approach to families with a diabetic patient, extensive to other chronic conditions, is described. The main purpose is to act on the emotional factors that the disease produces in the family as a system and that interfere in the therapeutic success. To operate two areas are proposed: a) Cognitive, trying to know and make clear any distorted information the family may have about the disease, with special emphasis on non-critical believes.

[Family ideology].

This paper treats the definition of the concept of family ideology linking it to that of social ideology. In both cases the ideology is seen as patterns of messages that obey certain semantic rules. Within the family context, it is considered that the conditions of production of the ideology are, concerning the profound structures, the unconscious oedipus conflict and kindred system that determines the family organization.