A camada de cobrimento do concreto funciona como uma barreira natural ao ingresso de agentes agressivos para o interior do material, dificultando a penetração de íons cloretos, reduzindo a absorção ...de água e limitando o acesso de oxigênio. Para garantir a eficiência desta camada protetora o uso de tratamentos de superfície mostra-se como uma alternativa viável para prolongar o período de proteção proporcionado pelo cobrimento do concreto. O objetivo deste trabalho é estudar o efeito de proteção de quatro produtos disponíveis no mercado para ser aplicados na proteção de superfície de concretos (cimento quartzoso, epóxi, silicatos, silano/siloxano), bem como comparar os métodos usados para investigar a eficiência de sistemas de proteção. Para isto procedeu-se sobre corpos de prova de concreto, ensaios de absorção por sucção capilar, resistência à penetração de cloretos por migração de íons e medição do ângulo de contato com a água sobre a superfície de concreto protegida ou não. Os produtos estudados apresentaram a capacidade de modificar a interação entre a água e a superfície de contato do concreto. Dentre os produtos estudados, o epóxi é o que apresenta a maior resistência à penetração de cloretos, menor absorção de água por capilaridade e caráter hidrófugo. Com exceção dos silicatos, verificou-se ainda uma boa correlação entre os resultados de absorção de água por capilaridade e o ensaio de migração de íons cloretos. Os produtos Epóxi e a base de silicatos, que apresentaram os menores valores de sortividade, foram os que apresentaram os maiores valores de ângulo de contato, sendo classificados como os de menor afinidade com a água.
The thickness of concrete cover acts as a natural protective barrier to the ingress of aggressive agents into the material, hindering the penetration of chloride ions, reducing water absorption and by limiting access of oxygen. To ensure the efficiency of this protective coat the use of surface treatments presents as a viable alternative to extend the period of protection provided by the concrete cover. The aim of this study is to evaluate the protective effect of four products available on the market to be applied on the surface protection of concrete (concrete sealers, epoxy, silicates and silane/siloxane) and compare the methods used to investigate the efficiency of protection systems. Absorption test by capillary suction, chloride penetration resistance by migration of ions and measuring the contact angle with water on the surface of protected concrete were executed. The studied products presented the ability to modify the interaction between the water and the contact surface of the concrete. With the exception of silicate, it was verified a good correlation between the results of water absorption by capillary and chloride ions migration. Among the studied products, the epoxy presents the highest resistance to chloride penetration, lower water absorption by capillarity and water repellent character. The epoxy and silicate, which showed the lowest values sorptivity, presented the highest values of contact angle, being ranked as the lowest affinity for water.
Em ambientes de atmosfera marinha, o grande problema, quanto à durabilidade do concreto armado, é o ataque por íons cloreto. A previsão do tempo de vida útil, em ambientes desse tipo, é algo ainda em ...estudo e sem consenso no meio técnico e científico. Esse trabalho avança nesse sentido, propondo um caminho para interpretar dados de difusão de cloretos no concreto armado de alta resistência contendo adição de metacaulim e de sílica ativa. Os resultados mostraram que o metacaulim e a sílica ativa aumentaram a vida útil de serviço em ambientes contaminados com cloretos em 240% e 440%, respectivamente. Isto evidencia a eficiência da adição de metacaulim e da sílica ativa para a produção de concretos mais duráveis em regiões com grande influência de maresia.
An analysis of the World Health Organization terminology for disability indicates the influence of the social model of disability in the International Classification of Functioning, Disability, and ...Health. This theoretical framework should guide any translations of the document. In Brazil, the document was translated as Classificação Internacional de Funcionalidade, Incapacidade e Saúde. We argue that more appropriate than translating disability as "incapacidade" and impairments as "deficiências" would be to use the term "deficiência" for disability and "lesão" for impairment. Considering the normative impact of a WHO document for social policy and international research, the translation should accurately reflect the concepts and their theoretical basis.
O presente artigo tem como objetivo analisar o adultério feminino em E a luz brilhará nas trevas (1940), da escritora paraibana Ezilda Milanez Barreto, levando-se em conta o conceito tradicional de ...casamento e o modo como o patriarcado brasileiro concebe as relações entre homens e mulheres no interior da família. Para fundamentar nossos posicionamentos sobre o adultério, ao longo das análises, apoiamo-nos, especialmente, em Foucault (1985) e Cipriano (2002). Esperamos contribuir para os estudos socioculturais na literatura paraibana de autoria feminina e possibilitar a reflexão acerca de algumas implicações ideológicas da representação do adultério feminino dentro do sistema patriarcal paraibano.
Violence involving adolescents today is a public health problem present in various social spaces, including schools. This study had the aim of describing and analyzing the process of coping with ...violence in schools from the perspectives of different players within the school community. There were 27 participants in the study, including managers, teachers, students, general service assistants and parents of students at a public school. Data were gathered through semi-structured interviews and, after transcription, these data were analyzed through content analysis. It was found that the procedures adopted by the different players in the school, in cases of violence, expressed the difficulties. The strategies related to the experiences and roles played by each of them. The potential to construct and strengthen dialogue between the different players of the school community and within an intersectoral coping network was shown. Keywords: Violence. School healthcare. Adolescent. Intersectoral action. Atualmente, a violencia envolvendo adolescentes configura-se como um problema de saude publica presente em diferentes espacos sociais, inclusive na escola. Este estudo tem como objetivo descrever e analisar o processo de enfrentamento da violencia escolar na perspectiva dos diferentes atores de uma comunidade escolar. Participaram do estudo 27 atores, entre: gestores, professores, alunos, auxiliares de servicos gerais e pais de alunos de uma escola publica. Os dados foram coletados por meio de entrevistas semiestruturadas e analisados por intermedio de analise de conteudo depois de transcritas. Identifica-se que os procedimentos adotados na escola, em casos de violencia, pelos diferentes atores, expressam as dificuldades e as estrategias relacionadas as experiencias e aos papeis desempenhados por cada um. Aponta-se a potencialidade da construcao e fortalecimento do dialogo entre os diferentes atores da comunidade escolar e de uma rede de enfrentamento intersetorial. Palavras-chave: Violencia. Saude escolar. Adolescente. Acao intersetorial. Actualmente, la violencia que envuelve a adolescentes se configura como un problema de salud publica presente en diferentes espacios sociales, incluso en la escuela. El objetivo de este estudio es describir y analizar el proceso de enfrentamiento de la violencia escolar en la perspectiva de los diferentes actores de una comunidad escolar. En el estudio participaron 27 actores entre gestores, profesores, alumnos, auxiliares de servicios generales y padres de alumnos de una escuela publica. Los datos se colectaron por medio de entrevistas semi-estructuradas y se analizaron por medio de analisis de contenido despues de realizada la transcripcion. Se identifico que los procedimientos adoptados en la escuela en casos de violencia, por parte de los diferentes actores, expresan las dificultades y las estrategias se relacionan con las experiencias y los papeles desempenados por cada uno. Se senala el potencial de la construccion y del fortalecimiento del dialogo entre los diferentes actores de la comunidad escolar y de una red de enfrentamiento intersectorial. Palabras clave: Violencia. Salud escolar. Adolescente. Accion intersectorial.
The use of fire as a land tool management is a common practice in the agricultural area. This practice requires a lot of care to avoid forest fires and uncontrollable fires. The uncontrollable fires ...can reach plantations, pastures and improvements. The objective of this work was to evaluate the fire management patterns and economic impacts of the fire management in the country areas in the region of Chapada dos Veadeiros, in the city of Cavalcante, Goias. The data collection was made by means of direct interviews, burnt areas, improvements damages and costs evaluation. Fifty agricultural producers used the fire as a tool of farming handling. The first stage of the data collection was carried out during 2003. Information on the size of burnt area, damages and investments in wildfire prevention was collected. The second survey, mode with the same 50 land owners, was carried out in 2004 dry station. The data of 2003 and 2004 was compared. Results showed that the use of fire, in such a place, causes damages for those land owners who use the fire as a land management tool and for land owners who do not use it. The lack of prevention activities and fire control approaches are the main causes of uncrontrolled burnts in Chapada dos Veadeiros.
Perceptions of adolescent students about drugs Faria Filho, Edson Arantes; Queiros, Pollyanna Siqueira; Medeiros, Marcelo ...
Revista brasileira de enfermagem,
2015 May-Jun, Letnik:
68, Številka:
3
Journal Article
Recenzirano
Odprti dostop
To analyze the perceptions of adolescent public school students about drugs.
Qualitative approach of focus groups with 16 adolescent students. The data collected were analyzed by means of content ...analysis, leading to the following categories: meaning of drugs; living with drug use; opinions, beliefs and attitudes toward drug use; and preventing drug abuse in adolescence.
The adolescent students know about some drugs, and associate their use with delinquent and criminal behavior. The students identified factors that lead to drug abuse, such as easy access, use by family and friends, idleness, dropping out of school and the characteristic vulnerability of adolescence.
the results point to the need for educational activities in the context of where the adolescents live, including school, community and family environments, to support and to minimize their vulnerability.
Estudo descritivo de abordagem qualitativa com o objetivo de analisar as perspectivas de dor do parto normal de primigestas e suas relações com o contexto sociocultural e de assistência pré-natal. ...Primigestas de uma maternidade pública de Goiânia-GO, Brasil foram entrevistadas no terceiro trimestre de gestação, e suas falas, analisadas pelo Método de Interpretação de Sentidos. As dez participantes apresentaram-se com faixa etária entre 18 e 31 anos e gestação normal. Por meio da retratação social da dor do parto normal, ora como fenômeno natural inerente ao parto, ora como fenômeno de sofrimento para a mulher, as primigestas construíram percepções e sentimentos ambíguos. Mesmo assim, elas sustentaram suas expectativas no sentido da dor como fenômeno natural inerente ao parto, com a perspectiva de ter uma vivência parturitiva saudável e satisfatória. Estes resultados podem subsidiar ações educativas no pré-natal que favoreçam um olhar direcionado à integralidade da mulher como agente do parto.
Estudio descriptivo de abordaje cualitativo con el objetivo de analizar las perspectivas de dolor del parto normal de primerizas y sus relaciones con el contexto socio-cultural y de asistencia prenatal. Las primerizas de una maternidad pública de Goiânia-GO, Brasil fueron entrevistadas en el tercer trimestre de gestación y sus declaraciones fueron analizadas por el Método de Interpretación de Sentidos. Las diez participantes se presentaron con edad entre 18 y 31 años en gestación normal. Por medio de la retractación social del dolor del parto normal, ya sea como fenómeno natural inherente al parto, o como fenómeno de sufrimiento para la mujer, las primerizas construyeron percepciones y sentimientos ambiguos. Mismo así, ellas han sustentado sus expectativas en el sentido del dolor como fenómeno natural inherente al parto, con la perspectiva de tener una vivencia durante el parto saludable y satisfactoria. Estos resultados pueden subsidiar acciones educativas en el prenatal que favorezcan una mirada hacia la integralidad de la mujer como agente del parto.
This qualitative and descriptive study aims at analyzing perspectives on normal labor pain of primigravid and their relationships with the social-cultural context, as well as the antenatal care. Primigravid from a Public Maternity Hospital in Goiânia-Goiás, Brazil, were interviewed during the third quarter of pregnancy and their speeches were assessed through the use of the Method of Interpretation of Meanings. The ten participants presented normal pregnancy and they were between 18 and 31 years old. From the primigravid interviews emerged ambiguous perceptions and feelings, either as a natural phenomenon inherent to childbirth or as a suffering phenomenon. Notwithstanding, they supported their expectations concerning pain as a natural phenomenon regarding labor, with the perspective of having a healthy and satisfactory childbirth experience. These outcomes can subsidize educating actions in the antenatal period favoring a view towards women´s integrality as childbirth agents.
This research aims to identify what the international scientific literature shows on the topic of Public Policy Performance Assessment, enabling the construction of knowledge in research and ...identifying gaps for future research on the topic. For this , this research with a qualitative approach , used the ProKnow -C tool for selection and analysis of the characteristics defined by the authors. Based on 31 articles of the Portfolio, we could identify the Public Administration Review journals, Journal of Policy Analysis and Management, Public Administration and Australian Journal of Public Administration as the most relevant by the number of publications of Portfolio. Of the 59 authors, two each have two publications: Carolyn J. Heinrich and Donald P. Moynihan . Agency theory was the most used by the authors as the basis of Performance Evaluation. The studies used the Public Policy Performance Assessment to analyze compliance, or not, indicators and process goals. The identified gaps were little occurrence of research that focus on the theory of stakeholders and surveys measuring the impact and the effectiveness of public policies. For the advancement of research related to the evaluation of the Public Policy Assessment, suggest the extension of studies that target all stakeholders and impact assessment of public policies, with a view to proposing improvements of government actions.
This research aims to identify what the international scientific literature shows on the topic of Public Policy Performance Assessment, enabling the construction of knowledge in research and ...identifying gaps for future research on the topic. For this, this research with a qualitative approach, used the ProKnow-C tool for selection and analysis of the characteristics defined by the authors. Based on 31 articles of the Portfolio, we could identify the Public Administration Review journals, Journal of Policy Analysis and Management, Public Administration and Australian Journal of Public Administration as the most relevant by the number of publications of Portfolio. Of the 59 authors, two each have two publications: Carolyn J. Heinrich and Donald P. Moynihan. Agency theory was the most used by the authors as the basis of Performance Evaluation. The studies used the Public Policy Performance Assessment to analyze compliance, or not, indicators and process goals. The identified gaps were little occurrence of research that focus on the theory of stakeholders and surveys measuring the impact and the effectiveness of public policies. For the advancement of research related to the evaluation of the Public Policy Assessment, suggest the extension of studies that target all stakeholders and impact assessment of public policies, with a view to proposing improvements of government actions.
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