A Nonstaining and Tasteless Hydrophobic Salt of Chlorhexidine

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A ontologia da cor na fenomenologia estética bachelardiana

La philosophie de Gaston Bachelard se fonde sur une tension ontologique, qui comprend tant la Science que la poétique, et au cours de cette recherche, se développe par la compréhension de la possibilité d envisager une ontologie de la couleur, expression de Bachelard ci tée en «Le Droit de Rêver». Nous suivons, donc, face au dialogue ent re la science et la poésie tout en établissant des paramèt res afin d élucider, d un côté, la couleur conceptuelle de la science qui ne matise pas seulement les objets par le biais de l expérience chimico-physique, mais établit aussi dans la relat ion ent re l observateur et l objet une compréhension de l existence de la couleur invisible, celle qui habite l imagination créatrice et apparaît comme un type d ontologie de la couleur. Dans ce sens, la couleur est une image qui naît dans la conscience de l homme, comme un produit direct de l âme dans son actualité même. Ainsi, la couleur serait dans l imagination créative une image autogène desti tuée de substantialité

Interdisciplinaridade: concepções de professores da área ciências da natureza em formação em serviço

O objetivo do presente estudo foi investigar como os docentes da área de Ciências Naturais concebem o conceito de interdisciplinaridade e de que forma desenvolveriam um trabalho interdisciplinar a partir de um tema comum sugerido: o Efeito Estufa. Através de questionários dissertativos, os professores-alunos participantes de um projeto de formação em serviço (Pró-Ciências), expressaram suas concepções iniciais a respeito do tema. A análise das respostas obtidas levou-nos às seguintes conclusões: os professores entrevistados têm apenas concepções rudimentares de interdisciplinaridade e confundem este conceito com o de multidisciplinaridade. Afirmam que é possível trabalhar o conceito de Efeito Estufa de maneira interdisciplinar, mas não indicam metodologias adequadas para fazê-lo, devido à carência conceitual apontada anteriormente.

Exploração sexual comercial de crianças e adolescentes : o estado da arte nas produções acadêmicas em psicologia

The Commercial Sexual Exploitation of Children and Adolescents (ESCCA) is a phenomenon that has been given priority in public policy agenda of many democratic governments of Western countries and civil sectors of society, besides the object of studies in different fields of knowledge. Psychology is among these areas and is considered one of the references in the construction of knowledge and actions to confront the phenomenon. However, the epistemological foundations of psychological science are quite different, and so, several are his speeches, knowledge produced and ways of conceiving man and the world. This is evident in the publications of psychology on ESCCA. This work aims to achieve a state of the art of psychology publication in Brazil (in the post-graduation - through theses and dissertations - and journals) on the Commercial Sexual Exploitation of Children and Adolescents. More specifically try to evidence (a) what conceptions of commercial sexual exploitation of children and adolescents the authors lists, (b) what are aimed at research and publications, (c) how the research and issues are justified, and (d) that theoretical approaches the authors are affiliated and methodological possibilities are applied to range the aim proposed in their work. In order to do so, a survey was conducted in the major index sites (eg, BVS-Psi, Capes, theses and dissertations database of university libraries) of the material, covering the period 1990 to 2007. Through research on these sites, we built a database, including information relating to the work sought from specific descriptors for studies in the area of victimization of children and adolescents, with reference to a list provided by Faleiros (2000). After reading the summary of the work, the number of recovered 25 productions was reached - including theses, dissertations and articles. For analysis of the material used in the analysis of thematic content. Two axes themes were established in order to guide the analysis: conceptual elements of commercial sexual exploitation, and theoretical and methodological strategies employed. The axes have as reference for analysis a chapter built on the concept of commercial sexual exploitation, so that all analysis is anchored on it. The analysis points to the existence, still strong, conceptual and terminological confusion about ESCCA. Few studies have not demonstrated this confusion, maintaining a consistent theoretical approach. In relation to the theoretical and methodological strategies, there is a great diversity of approaches in psychology surrounding the phenomenon of ESCCA, enriching levels of understanding and action. This diversity reflects a constitutive heterogeneity of psychological science. We emphasize the perspective of socio-historical psychology, most frequently among the publications. It is hoped that this research will help advance the qualitative approach to ESCCA, especially in the field of psychology, as well as contribute to new research in the area and construction of new means of addressing this human rights violation

Mudanças climáticas globais e o compromisso pró-ecológico de adolescentes natalenses

In recent years, much has been discussed about global climate changes (GCCs), popularly known as global warming. The scientific evidences point out to the influence of human actions for its drastic intensification. Therefore, studies of the psychological aspects involved become relevant. This study aimed at the investigation of the views of adolescents concerning GCCs, and the possible relations between those views and their pro-ecological commitment. Such commitment is measured by willingness for engagement in pro-environmental behaviors; environmentalism attitudes, like ecocentric and anthropocentric; consideration of future consequences; and ecological worldviews. Participants were 348 adolescents who answered a questionnaire containing questions about socio-demographic data, open questions about the practice of environmental care, and about GCCs, and the scales of Ecocentric and Anthropocentric Environmentalism, the Consideration of Future Consequences and the Ecological Worldviews assessment scale. From the inter-relationships between variables, procedures carried out by means of descriptive and correlacional statistics, it was observed that 55% of teenagers said that they did not engage in actions of environmental care, which was associated with apathyanthropocentric, immediatism, and individualism. The consideration of future consequences joined the practice of environmental care, corroborating evidence from the literature. It was evident that views concerning GCCs were superficial; adolescents perceive it as a generic environmental problem, and are confused with other problems such as pollution. This study found no association between views about GCCs and the indicators of pro-ecological commitment, perhaps due to the conceptual confusion about the subject. However, the lack of environmental care actions and other indicators of non-commitment (apathy-anthropocentric, individualism and immediatism) were associated with conceptually poor or incomplete responses (with no indication of cause, consequence or responsibility for the problem), demonstrating diminished knowledge and the failure to consider these issues

Avaliando o impacto da utilização de renderizações panorâmicas para a navegação em ambientes virtuais

Panoramic rendering is the visualization of three-dimensional objects in a virtual environment through a wide viewing angle. This work investigated if the use of panoramas is able to promote faster searches in a virtual environment. Panoramas allow the presentation of space through less need to change the orientation of the camera, especially for the case of projections spanning 360º surrounding the user, which can benefit searching. However, the larger the angle, more distorted is the visualization of the environment, causing confusion in navigation. The distortion is even bigger when the user changes the pitch of the camera, by looking up or down. In this work we developed a technique to eliminate specifically the distortions caused by changes in pitch, which was called hemispheric projection. Experiments were done to evaluate the performance of search navigation through perspective, cylindrical and hemispherical projections. The results indicate that navigating with perspective projection is superior than navigating with panoramic projections, possibly due to factors such as (i) lack of experience of the participants in understanding the scenes displayed as panoramas, (ii) the inherent presence of distortion in panoramic projections and (iii) a lower display resolution because the objects are presented in smaller sizes in panoramic projections, making the perception of details more difficult. However, the hemispherical projection was better than the cylindrical, indicating that the developed technique provides benefits for navigation compared to current techniques of panoramic projection. The hemispheric projection also provided the least amount of changes of camera orientation, which is an indication that the hemispheric projections may be particularly useful in situations where there are restrictions on the ease to change the orientation. Future research will investigate the performance of cameras interactions on slower devices, such as using only keyboard, or brain-machine interfaces

Survey assessment of parental perceptions regarding head lice

Background Head lice constitute a problem in children. Each year, numerous cases of pediculosis occur worldwide. Little work has been performed to evaluate the understanding, opinions, and actions of populations regarding head lice. These areas are important as they enable clinicians and educators to alert parents on how to avoid treatments that are innocuous or of high risk to patients.Methods A cross-sectional study was performed by interviewing the heads of households of 100 randomly chosen residences within the study area.Results The results obtained showed that 13% were infested during the first week of the survey, and 86% in the 24 weeks prior to the study. The number of positive cases increased with increasing resident number, and decreased in families with parents with a higher educational level. Itching was the principal clinical manifestation and caused sleep compromise in 65% of respondents. Innocuous and unhealthy practices to combat infestation, such as the use of inflammables and home insecticides, were common.Conclusion The results showed that certain beliefs generated worry and confusion in parents, who blamed head lice as the cause of various health problems which were not due to this insect.

Anomalia bilateral no gonóstilo de Sciopemyia sordellii (Shannon & Del Ponte) (Diptera, Psychodidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uso de nomes populares para as espécies de Araceae e Dioscoreaceae no Brasil

A origem dos nomes vulgares das espécies muitas vezes é obscura ou mesmo impossível de ser identificada. Face à semelhança que apresentam alguns tipos de sistema subterrâneo de Dioscorea com aqueles das espécies de Colocasia, observa-se em muitos trabalhos publicados na literatura brasileira uma certa confusão na terminologia usada para definir estruturas principalmente em algumas espécies de inhame e cará. A padronização no Brasil da nomenclatura das estruturas subterrâneas destas hortaliças, à luz dos Códigos Internacionais de Nomenclatura Botânica e das Plantas Cultivadas, permitirá melhor entendimento para pesquisadores, extensionistas, sociedades civis organizadas, importadores, produtores, comerciantes e consumidores, na identificação das espécies cultivadas de cada família botânica e na interpretação das informações.

Capacidade, dotação, talento, habilidades: uma sondagem da conceituação pelo ideário dos educadores

Embora o escopo deste trabalho seja de origem teórica, relata um estudo exploratório que busca situar a base de conceituação em Educação Especial para alunos Dotados e Talentosos, no Brasil, captando as definições compreendidas por profissionais da educação pela sondagem de sua opinião sobre que termos e expressões são usados, com que significados e em que situações. Os sujeitos incluíam 80 educadores interessados ou envolvidos na área (Grupo A) e 107 professores da rede pública no interior de São Paulo (Grupo B). Há poucas diferenças de opinião entre os sujeitos, nos dois grupos, com algumas exceções, principalente em questões relacionadas a nível de conhecimento e familiaridade com referencial teórico. Ambos os grupos indicam conceituação confusa, notadamente para os termos oficiais, superdotação e altas-habilidades; a maior carga de rejeição e exploração na mídia é alocada a superdotação. Os conceitos alta capacidade, alto desempenho e dotação são definidos em consonância com o referencial básico, que diferencia capacidade natural de capacidade adquirida; Talento reflete a ambiguidade encontrada na área, referindo-se, ao mesmo tempo, a capacidade natural e capacidade adquirida.

Doença de Chagas aguda pós-transfusional sem miocardite

Trata-se de paciente do sexo feminino, com 59 anos de idade, procedente de Itaporanga (SP), diabética e nefropata crônica, internada em virtude de surtos de pielonefnte e insuficiência renal aguda. Dentre outras medidas terapêuticas, recebeu transfusão de sangue. Cerca de dois dias após a última transfusão (sangue oriundo de doador, posteriormente identificado como chagásico) encontraram-se formas tripomastigotas de Trypanosoma cruzi em lâmina preparada para execução de hemograma. Iniciou-se tratamento com Benzonidazol. A paciente cursou para, pleuropneumonia e de secreção purulenta cirúrgica isolou-se Klebsiella spp. A septicemia conduziu a paciente ao êxito letal. Nenhuma lesão tecidual foi observada no miocárdio, no sistema nervoso central, adrenal ou nos demais órgãos examinados.

Understanding the in vitro neuromuscular activity of snake venom Lys49 phospholipase A(2) homologues

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Aspectos cognitivos do transtorno obsessivo-compulsivo

This paper describes the most important cognitive models for obsessive-compulsive disorder, i. e., the inference processes (thoughts and believes) underlying the patients'feelings and behaviors. The major models formulated in this area emphasize the following aspects: exacerbated perception of danger (risk evaluation), overimportance of intrusive thoughts, excessive sense of personal responsibility (blame for harm self and others), perfectionism, psychological fusion of thought and action, and illogical inference processes involving confusion between imagination and reality. The knowledge of cognitive aspects brings new perspectives for the psychological treatment of this disorder.

Two definitions of the electric polarizability of a bound system in relativistic quantum theory

For the electric polarizability of a bound system in relativistic quantum theory, there are two definitions that have appeared in the literature. They differ depending on whether or not the vacuum background is included in the system. A recent confusion in this connection is clarified. © 1999 American Associations of Physics Teachers.

Metodologia para quantificação de leucóciotos totais em peixe Oreochromis Niloticus

Haematological investigation is an important part of disease diagnosis. The techniques used for mammals are generally applicable for fishes with slight modification. The presence of nucleated erythrocytes and thrombocytes in fish may cause some confusion in the identification of blood cells, mainly in total leukocytes count. This work evaluated two different methods (direct and indirect) of leukocytes counting. Specimens of tilapia were divided randomly into four groups of 48 fish each. Each group was further randomized into three replicate experiments of 16 fish per replicate in 40 L aquarium and maintained for 10 days. Counting of leukocytes in peripheral blood was determined in six fishes per group at the times: 0, 3, 7 and 10 days. The direct method in Neubauer chamber showed a large dispersion of data in regard to the average, the opposite was observed in indirect method determined in blood smears that showed more homogeneity among groups. Due to this factor the indirect method can be considered more accurate than the direct method for counting leukocytes in fishes.