995 resultados para Frente de masas


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Doenças como dengue, malária, febre amarela e outras que são transmitidas por culicídeos determinam altas taxas de morbidade e mortalidade principalmente nos países tropicais. Uma alternativa para evitar picadas é o uso de repelentes. O mais utilizado é o repelente de DEET (N, N-dietil-3-m-toluamida), mas há relatos que descrevem casos de toxicidade com o uso de forma incorreta ou uso a longo prazo. Devido a essas desvantagens muitas pessoas preferem usar produtos naturais como repelentes. Estudos têm demonstrado que diferentes óleos essenciais têm atividade repelente, mas a investigação deve ser conduzida de forma a obter formulações que são eficazes na fixação de compostos aromáticos na pele, e aumentar a duração da repelência. Sistemas nanoestruturados para a liberação do princípio ativo, tais como sistemas líquido-cristalinos (SLC), têm vantagens na liberação controlada, uma vez que aumentam a estabilidade e a eficácia. Foram preparados sistemas constituídos por água, óleo de rícino hidrogenado PEG-40 (Eumulgin® HRE 40) como tensoativo e óleo essencial de melaleuca como fase oleosa. Esses sistemas foram analisados por de microscopia de luz polarizada, determinação do comportamento reológico e avaliação de bioadesão. A atividade repelente in vivo das formulações frente ao mosquito Aedes aegypti foi determinada empregando ensaio com humanos, para tanto utilizou-se uma caixa que evitava que os voluntários sofressem picadas. Foi verificada a ação repelente nos tempos 0, 30, 60 e 90 minutos ou até o momento em que não houvesse repelência. Realizou-se um estudo comparativo com um repelente comercial a base de DEET. Os resultados obtidos mostraram a presença de regiões de mesofases líquido-cristalinas do tipo cúbica (F18, F19 e F20) e microemulsão (F17) fixando-se a concentração do tensoativo em 30% e variando... (Resumo completo, clicar acesso eletrônico abaixo)

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Conselho Nacional de Desenvolvimento em Pesquisa (CNPq)

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The aim of this paper is to present some considerations on discursive positions that challenge the textual production of a student from Cycle II Elementary School. We intend to show how a biased reading of the student’s text might not observe significant textual features and disregard the student’s level of literacy, thus ignoring the insertion of this writing in a socio-historical context. Such an approach, while defined by ideology, is determined by the pedagogical discourse that focuses on formal patterns of language, which prevents the teacher from identifying rich and interesting linguistic and textual procedures in the text in question, indicative of the student's literacy and his/her potential for authorship. This reading mostly denies the efforts that have been made to reverse the exclusion of public schools students, weakening the idealist discourse that claims for a “school for everybody”.

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Micronuclei (MN) originate from chromosome fragments or whole chromosomes that lag behind at anaphase during cell division can occur due to excessive exposure to harmful agents, defects in mitosis and / or DNA repair process. The study evaluated the frequency of micronuclei in cytological samples after daily use of alcohol -based mouthwash mouth in smokers and non-smokers. We assessed 30 subjects, aged between 17-42 years and established as exclusion criteria: alcohol consumption; periodontal disease; systemic diseases that may interfere with the integrity of the oral mucosa; individuals with medical or pharmacological history that affect the performance of the study, family history of malignancies. For smokers the inclusion criterion was a minimum consumption of 20 cigarettes / day, and the contrast required for non-smokers. The sample was divided into 02 experimental groups: Group 1 Smokers and Group 2 Non-Smokers, both groups performed mouthwash (alcohol 21,6%) with Listerine® Defense of Teeth and Gums for 04 weeks cytological collection were performed on buccal mucosa and portion median border of the tongue, one for initial, week 0 control, and subsequent three weeks with continued use of mouthwash. The collected material was stained by specific staining Feulgen / Fast Green. The analysis of 3000 cells / individual was performed by light microscopy statistics used Kruskal- Wallis and Mann-Whitney tests for frequency MN. The frequency of micronuclei in buccal mucosa was 1.6 ± 1.75 and 1.46 ± 2.06 for the site language to Group 1 Smokers of showing a slight increase compared with Group 2 Non-smoking, which showed a variation of 1.2 ± 1.53 for the buccal mucosa site and 0.86 ± 1.41 for the site language. However, this difference was not statistically significant. The results suggest that alcohol-based mouthwash tested is not an inducer of genotoxic changes, thus not changing the frequency...

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Pós-graduação em Serviço Social - FCHS

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Pós-graduação em Saúde Coletiva - FMB

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This article analyses the Brazilian political process in the period between the beginning of the government of general Arthur da Costa e Silva in March 15, 1967 and the edition of the Institutional Act No. 5 (December 13, 1968). Through the analysis of the key moments in this context, seeks to qualify the actions of the main political players in terms of their goals and strategies and assess the impact that they had on the production of authoritarian legislation.

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Sexual violence against girls under the age of eighteen, in the form of sexual abuse has been identified as an endemic phenomenon by public officials in the cities of São Paulo. Among t agents and tutelary councilors, which reveal the size of their work linked to the Social Assistance System, the Health System and the Public Security System, dialoguing with their local agents. However, prevent sexual abuse and exploitation constitutes a greater challenge, consciously or unconsciously. This paper opens a discussion on the urgency of designing social networks to prevent sexual violence, with participation of researchers and university students. It is based on surveys of public officials in the years 2011 to 2013 in five cities of São Paulo, with over 200 thousand inhabitants.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This research aimed to investigate, to describe and to reflect on the initial and continuous training playful preschool teachers and their applicability in daily practice. Through a literature search on the official documents and playfulness in the formation of the pedagogue, we see the importance of the uses of games and toys in kindergarten. Therefore, a retrospective of early childhood education and teacher training were conducted by analyzing the knowledge necessary to professor of playing in kindergarten. In order to collect data in the field were used as instruments to direct observation of everyday practice of the teacher and a questionnaire to see if the teachers' planning the use of toys and games, times and spaces intended for recreational actions are recorded and are ensured. With these investigative actions, from the descriptive and interpretative analysis of the data can be verified as occurred playful teacher education early childhood education and its importance in recreational use in the classroom every day

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The personal experience respective is a description of an psychosocial intervention effectuated in the year of 2007 in an institution not government, in the city of Taubaté, with a group of women infected with the virus HIV. We will present in the short form our work, which happened through a therapeutic group, that had as device, the production of new process of subjectivizing with these women in the conduction of them condition of life after the infection with the virus HIV. To determine our actions use the theoretical assumptions of genealogy, of psychology and the theory of institutional operating group with emphasis on aspects of group discussion. During approximately twelve meetings with the denser group work topics such as social violence (inequality of rights, prejudice and stigma), treatment of the condition of serum positive when marked by ambivalence to treatment and the use of defense mechanisms: denial, projection and omnipotence, the weak and intense physical and mental suffering resulting from this process.We end our exhibition while presenting the discursive constructions and, consequently, the multiforms singular potentialities of the group that appeared with our psychosocial interventions.

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O objetivo desse artigo é refletir sobre a experiência visual da revista mexicana Frente a Frente (1934-1937) publicação da Liga de Escritores y Artistas Revolucionários – LEAR (1933-1938). Após apresentar a trajetória da revista procuramos investigar o projeto visual da publicação e a complexidade de uma revista engajada e a tensão entre propostas de cultura proletária, realismo socialista e vanguarda. Procuramos averiguar a circulação da vanguarda fotográfica entre Europa e México no período entre guerras. Interessa-nos em particular a experiência da utilização de fotografias e fotomontagens.