7 research outputs found

    Exploring Mexican adolescents' perceptions of environmental health risks: a photographic approach to risk analysis

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    The objective of this study was to explore Mexican adolescents' perceptions of environmental health risks in contaminated urban areas, and to test the environmental photography technique as a research tool for engaging adolescents in community-based health research. The study was conducted with 74 adolescents from two communities in the city of San Luis Potosi, Mexico. Participants were provided with disposable cameras and asked to take photographs of elements and situations which they believed affected their personal health both at home and outside their homes. They were also asked to describe each photograph in writing. Photographs and written explanations were analyzed by using quantitative and qualitative content analysis. Risk perception plays a crucial role in the development of Risk Communication Programs (RCPs) aimed at the improvement of community health. The photography technique opens up a promising field for environmental health research since it affords a realistic and concise impression of the perceived risks. Adolescents in both communities perceived different environmental health risks as detrimental to their well-being, e.g. waste, air pollution, and lack of hygiene. Yet, some knowledge gaps remain which need to be addressed

    Use of anticoagulants and antiplatelet agents in stable outpatients with coronary artery disease and atrial fibrillation. International CLARIFY registry

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    Physical properties of transparent conducting Cd-Te-In-O thin films.

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    Cd-Te-In-O thin films are grown by pulsed laser deposition using a composite target of CdTe powder embedded in an indium matrix. Oxygen pressures range from 2.00 to 6.67 Pa at a substrate temperature of 420 degrees C. The structure, optical transmission and sheet resistance of the films are measured. Substitutional compounds with In(2-2x)(Cd,Te)(2x)O(3) stoichiometry are found at high oxygen pressures. A ternary phase diagram of the CdO-In(2)O(3)-TeO(2) system shows the relationship between the structure and the stoichiometry of the films. To evaluate film performance, a figure of merit is proposed based on the relationship between the integral photonic flux and the sheet resistance. The best figure of merit values corresponds to a sample prepared at 3.8 Pa O(2) that consists of (In(2)O(3))(0.3)(CdTe(2)O(5))(0.7) and exhibits an optical band gap of 3.0 eV. This sample is a suitable substrate for electrodeposition due to its good electrochemical stability. (C) 2009 Elsevier B.V. All rights reserved

    Progress in Brucella vaccine development

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    Survival of the fittest: how Brucella strains adapt to their intracellular niche in the host

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