Avaliação do efeito da umidade relativa do ar no coeficiente de performance de um sistema de ar condicionado

Os fatores que influenciam no consumo de energia de um sistema de ar condicionado de pequeno porte, que merecem destaque são a eficiência do compressor através do modelo empregado, a forma que a vazão do refrigerante é condicionada, o modelo do ventilador empregado, o rendimento do evaporador, o condensador e as condições climáticas. Dentro da questão climática, uma questão bastante interessante é que a umidade relativa do ar, quando se trata do efeito que ela causa, principalmente no rendimento do condensador a ar, em geral não é considerada nos projetos. Este trabalho tem como objetivo avaliar a influência da umidade relativa do ar no coeficiente de performance do sistema (COP), procurando quantificar sua influência nas respectivas faixas em que elas acontecem. Nos resultados encontrados foi possível identificar que existe uma influência bastante significativa, principalmente quando comparam-se condições de alta umidade com de baixa umidade destacando que somente a partir da 65% de umidade relativa é que encontra-se alterações significativas no COP do sistema

Aderência aço-concreto: simulação numéricadosensaios de arranchamento pull-out e APULOT usando o programa ATENA

The bond between steel and concrete is essential for the existence of reinforced concrete structures, as both materials act together to absorb structural strain. The bond phenomenon is considered to be complex regarding many factors that affect it. Several types of bond tests have been proposed over years. One is the modified proposed of pull-out test, which was elaborated by Lorrain and Barbosa [1] called APULOT test (Appropriete pull-out-test). Based on experimental results obtained by Vale Silva[2] either by conventional pull-out tests, or by modified pull-out test, APULOT, seeks to know the numeric behavior of bond steel-concrete through a numerical simulation using a calculation code ATENA which is based on the Finite Element Method (FEM). The numerical simulation provided better evaluate the stress distribution and cracking that occurs during the test, thereby becoming a valuable tool to support the experimental project that aims to validation, validation partially or not recommend the modified bond test steel-concrete - APULOT test - as quality control test of structural concrete. The numerical results showed good representation compared to experimental results.

Avaliação da formação de biofilme e sensibilidade ao ácido peracético por Salmonella spp. isolada de abatedouro avícola

Pós-graduação em Medicina Veterinária - FMVZ

Comunidades de fungos em jardins de formigas cortadeiras com diferentes hábitos de forrageamento

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

Aspectos nutricionais e ambientais da obesidade canina

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

Efeitos de ensino envolvendo equivalência entre palavra ditada, palavra escrita e objeto sobre a inteligibilidade da fala em adolescente com hipoplasia cerebelar

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

Characteristics of fricatives consonants orthography in Brazilian children

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

Desempenho de escolares rurais em narrativas escritas e possíveis relações com variáveis de perfil

The goal of this research was to characterize written stories, produced by students, without complaint of language development (oral and written), from pictographic support. In a specific way, it has been searched, in those stories, elements that could grant coherence, applying that performance with the participants’ profile variables. It was characterized as a descriptive-exploratory study, held at a rural municipal school in the State of Parana. Twenty-one (21) students of both genders and ages between seven and nine years old have participated in this study. Data collection consisted of two narratives requests: one oral, after being released, to the child, four pictures placed in sequence to form a story, and one written. This writing production had been taken for the analysis. The results have indicated that most children (71.42%) managed to produce coherent stories, seventeen (80%) in story 1 and thirteen (61%) in story 2. As to the relation of that coherence with the students’ profile in story 1, there has been no statistically significant association, for none of the analyzed variables (gender, age and education), whereas there has been a statistically significant association with gender in story 2 (p-value 0.027). It is considered that the use of the pictographic support in developing stories have been confirmed as a facilitating strategy for its construction, for it has enabled the production of coherent narratives.

Perfil comunicativo de crianças que ingressaram na educação infantil após os cinco anos de idade

Objective: To characterize the communicative behaviors of children who entered in Primary School after the age of five. Methods: It was a descriptive study, held in a city at the countryside of Parana state (Brazil), in the years 2007 and 2008, in both school and home environments. Twelve children of both genders joined in the study, with age ranging from five years and two months to six years, besides their mothers and respective teachers. Interviews were conducted with mothers and a questionnaire for teachers. Afterwards, observations of the communication of children in school and home environments were conducted. Data analysis focused on those relevant to children’s development and school performance, trying to determine their communicative profile in school and home environments, from protocols regarding the indicators of communication means and functions. Results: The results indicated the presence of a child with poor general health, with complications from the pregnancy period, with motor and language delays and low school performance. It was also observed that all children used verbal means to communicate and the highest frequency of communicative functions appeared in home environment, indicating an important aspect to be considered in the stimulation of communication of these children. Conclusion: Data from this study showed that the children benefited more of contexts planned with family interlocutors.

Assessoria Fonoaudiológica na Educação Infantil

This study aims at indicating possibilities for speech therapists at schools of Primary Education. The project was developed in three centers of Primary Education in Irati, Paraná. It took into consideration 114 students and 30 teachers. Teachers filled in questionnaires and attended conferences. Regarding to the children, it was constructed a profile and activities related to phonological subjects. The extension project represented an important role for development of academic skills and competence of the school community.

A estabilidade dos mini-implantes ortodônticos

The mini-implant has become a device for anchorage quite widespread and current employee in Orthodontics. The effectiveness of mini-implant is mostly due for its stability primary, however is important to understand about factors that influence the stability. This article presents a review of literature in the database, and as a criterion for inclusion in articles published on the factors related to the stability of mini-implant carried out on humans and animals. The articles was selected according selection criteria related to stability, The factors of mini-implants stability have been described in the literature with scattered scientific information, most of them just as clinical observations. However, these factors of stability can be classified in relation to screw, professional and patient.

Ocorrência de poluentes orgânicos persistentes em ovos de Caiman yacare (jacaré-do-Pantanal)

Pós-graduação em Química - IQ

Avaliação cefalométrica das alterações esqueléticas, dentárias do perfil facial naturais e induzidas pelos aparelhos de Herbst e Bionator no tratamento da má oclusão de Classe II, divisão 1ª

Pós-graduação em Ciências Odontológicas - FOAR

Proposição de um checklist de acompanhamento de processos construtivos habitacionais em wood-frame

The need for housing in Brazil is very large, and despite government efforts to address this issue, the housing deficit is too large. When analyzing markets without this problem, it is concluded that one of the factors that influence this model is the construction adopted by Brazilian society that is in masonry. Alternatively, the system can be used in constructive Wood-frame. To apply this system in Brazil, one can say that the workmanship and the materials available to meet the demand would be created in a short period of adjustments and capabilities, but identifies himself as one of the biggest problems the planning and management of works. And one of the tools for solving this problem is to use a checklist of the activities of constructive process, avoiding forgetting or not aware of the activities necessary to complete the project

Análise dos níveis de motivação e estresse em atletas do campeonato regional de basquetebol feminino sub-21

This descriptive study aimed to investigate what changes of emotional states more sensitive to internal and external influences and to investigate the motivating factors and stressors in basketball players of a Regional Championship of the Interior . Study subjects were 56 (fifty - six) athletes, members of 05 (five) highest ranked teams in the competition. As a measuring tool used the Frester ‟sP sychicLoad Test (1972, apud SAMULSKI, CHAGAS, 1992) . Data analys used descriptive statistics. The findings showed that the facts considered as motivators during the competition were: the audience, the fact of constantly thinking on achieving the desirable aims, and the establishment of very high aims; the stressful factors were: disagreements and conflicts with the coach, partners or family, bad sleeping the night before the competition, excessive nervousness and to be prejudiced by the referees . Therefore, we can conclude: the facts that influence the interest can be of motivating or stressful order , depending on the personal and situational perception; most athletes characterized the competiti ve sport as more stressful than motivating, and this assessment influenced by constant pressure of intrinsic and extrinsic factors that athletes suffers during the competitive environment