Indoor radon measurements in six Latin American countries

Most of the natural radiation dose to man comes from radon gas and its progeny. Several countries have established national institutions and national programs in charge of the study of radon and its connection with lung cancer risk and public health. In this paper an indoor radon measurements in Latin American countries is presented. The participants in this work were from Argentina, Brazil, Ecuador, Mexico, Peru and Venezuela. Many different techniques are used in this common effort, and the indoor radon levels in specific locations in each of the participant countries are presented.

Tele-education environment and didactic iconography in sexual transmitted diseases

The field of advertising has developed techniques of mass communication and rapid transmission of information. Among these techniques are slogans and iconographies. This work used such tools for educational purposes and was divided into three modules. Module 1 evaluated the use of simplified textual communication (slogans) about the subject Sexually Transmitted Diseases. It was applied to third-year medical students, which had not taken the course on this theme. To evaluate the impact of the textual communication form (slogans), long phrases were elaborated in scientific language containing 15 topics. From these long phrases, compact phrases were developed using techniques of the advertising area for elaboration of slogans. Three forms of didactic material about that theme were developed. The first form consisted of long phrases in descriptive topics, using scientific language. The second was constituted exclusively of compact phrases in the form of slogans, and the third was composed of the combination of the two previous forms. Then, 10 multiple-choice questions were elaborated and applied in two phases. In the first phase, application occurred immediately after the reading of didactic texts; in the second phase, it happened 60 days after the reading. For statistical analysis, Snedcor's F test was used for analysis of variance, at 5% significance level. There was an increase in memorization by students who read the material containing the association between long phrases and slogans, which indicates that the latter, when used as an auxiliary model of learning, can bring significant benefits for education. Module 2 consisted of analyzing the elaboration of educational videos produced in graphic computing (called iconographies) for development of dynamic communication means. The theme Hair Cycle was utilized. Viability of high quantities of information in few minutes of animation could be demonstrated together with the advantage of presenting the process in a dynamic form without wasting scientific details. Module 3 presented the inclusion of slogans in educational videos produced in graphic computing about the Hair Cycle, showing a new tool for rapid and efficient transference of data. Slogans and iconographies, when utilized in educational material, can bring significant benefits for the student's learning.

Anuario estadístico de América Latina, 1979 = Statistical yearbook for Latin America, 1979

Publicado en 1980

Anuario estadístico de América Latina y el Caribe, 1985 = Statistical yearbook for Latin America and the Caribbean, 1985

Publicado en agosto de 1986

Anuario estadístico de América Latina y el Caribe, 1986 = Statistical yearbook for Latin America and the Caribbean, 1986

Publicado en junio de 1987

Anuario estadístico de América Latina y el Caribe, 1987 = Statistical yearbook for Latin America and the Caribbean, 1987

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Anuario estadístico de América Latina y el Caribe, 1988 = Statistical yearbook for Latin America and the Caribbean, 1988

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Anuario estadístico de América Latina y el Caribe, 1989 = Statistical yearbook for Latin America and the Caribbean, 1989

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Anuario Estadístico de América Latina y el Caribe 1990 = Statistical Yearbook for Latin America and the Caribbean 1990

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Anuario Estadístico de América Latina y el Caribe 1991 = Statistical Yearbook for Latin America and the Caribbean 1991

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Anuario Estadístico de América Latina y el Caribe 1992 = Statistical Yearbook for Latin America and the Caribbean 1992

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Anuario Estadístico de América Latina y el Caribe 1993 = Statistical Yearbook for Latin America and the Caribbean 1993

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Anuario Estadístico de América Latina y el Caribe 1994 = Statistical Yearbook for Latin America and the Caribbean 1994

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Anuario estadístico de América Latina, 1973 = Statistical yearbook for Latin America, 1973

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