46 research outputs found

    Introduction. Democratizing Higher Education and Science in Latin America

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    This book discusses the conditions to build reliable science, technology and higher education systems in Latin America, based on international comparative studies, fieldwork and analysis conducted over the last few years. This introductory chapter suggests that science can have a major role in furthering the democratization of society through public policies that foster opportunities to access knowledge and the advanced training of human resources. Broadening the social basis for higher education promotes the qualification of the labor force and contributes decisively to social and economic development. The need to guarantee higher education diversity, strengthening scientific institutions and investing in a strong science base, is deemed as critical, but goes far beyond policies centered on innovation and industry-science relationships. It requires adequate training and attraction of skilled people, as well as promoting scientific and technological culture among society

    Indoor air quality and health in schools

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    Objective: To determine whether indoor air quality in schools is associated with the prevalence of allergic and respiratory diseases in children. Methods: We evaluated 1,019 students at 51 elementary schools in the city of Coimbra, Portugal. We applied a questionnaire that included questions regarding the demographic, social, and behavioral characteristics of students, as well as the presence of smoking in the family. We also evaluated the indoor air quality in the schools. Results: In the indoor air of the schools evaluated, we identified mean concentrations of carbon dioxide (CO2) above the maximum reference value, especially during the fall and winter. The CO2 concentration was sometimes as high as 1,942 ppm, implying a considerable health risk for the children. The most prevalent symptoms and respiratory diseases identified in the children were sneezing, rales, wheezing, rhinitis, and asthma. Other signs and symptoms, such as poor concentration, cough, headache, and irritation of mucous membranes, were identified. Lack of concentration was associated with CO2 concentrations above the maximum recommended level in indoor air (p = 0.002). There were no other significant associations. Conclusions: Most of the schools evaluated presented with reasonable air quality and thermal comfort. However, the concentrations of various pollutants, especially CO2, suggest the need for corrective interventions, such as reducing air pollutant sources and improving ventilation. There was a statistically significant association between lack of concentration in the children and exposure to high levels of CO2. The overall low level of pollution in the city of Coimbra might explain the lack of other significant associations

    Translocation and radiotelemetry monitoring of black-tailed marmosets, Callithrix (Mico) melanura(É. Geoffroy in Humboldt), in a wildlife rescue operation in Brazil

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    Five black-tailed marmoset Callithrix (Mico) melanura (Primates - Callitrichidae) individuals were monitored by radiotelemetry as part of a project on translocated wildlife affected by flooding the Manso River reservoir in the state of Mato Grosso, western Brazil (14° 52' S and 55° 48' W). The animals were monitored for eight months from October 2000 through August 2001. Only one death was recorded among the translocated animals. Two pairs established their home ranges in the new area, after some exploratory behavior. The new home range sizes varied from 0.72 to 4.27 km². The home ranges of male and female overlapped in the case of both pairs by 0.59 to 2.30 km². Trips were always made in pairs and not individually. The results indicate the feasibility of a successful translocation program for this species, as long as the animals are translocated to a similar habitat nearby
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