Showing papers by "Sao Paulo State University published in 1970"

Effects of air temperature on physiology and productive performance of pigs during growing and finishing phases

Abstract: Thirty-six castrated male pigs were used to determine the influence of thermal environment and reduction of consumption on performance and carcass composition. Animals were housed in two climate chambers. In one, animals were in thermal comfort (TN) (22 °C), and in the other, pigs were under heat stress (HS) (34 °C). Animals were distributed in a randomized block design, making three treatments (TN, HS and animals in thermal comfort with food consumption paired with that observed in HS (PFTN)), with six replicates and two animals per experimental unit. Data were obtained on performance and carcass composition. The weight gains of HS and PFTN animals were reduced by 40.5% and 34.7%, respectively, reflecting a reduction of 13.2% in the final weight of PFTN animals. Triiodothyronine concentration was not affected by heat, but there was an increase in lymphocyte numbers in PFTN animals. The HS and PFTN animals showed lower hot carcass weight. However, there were no effects on hot carcass yield and relative weights of heart, lung and spleen. Heat stress compromised performance. The negative effects of high temperature on pigs include reduction in feed intake and changes in physiology. Keywords : Environment, heat stress, pair feed, pig growth, pig production

Protocolo verbal: verbalizações concorrente e retrospectiva

Abstract: A partir do problema sobre a validade da aplicacao do metodo do Protocolo Verbal e, mais especificamente, sobre os apontamentos teoricos e empiricos que evidenciam possiveis falhas e inconsistencias que esse metodo pode apresentar, o artigo tem por objetivo investigar as duas verbalizacoes ligadas a tecnica de analise qualitativa de Protocolo Verbal. Nesta tecnica ha duas abordagens que oferecem distintas possibilidades de pesquisa. A primeira delas e a verbalizacao concorrente, que consiste em executar uma tarefa simultaneamente ao relato verbal; a segunda e a verbalizacao retrospectiva que acontece apos a tarefa ser executada. Cada uma delas esta sujeita a criticas quanto a sua possivel reatividade e nao veracidade cientifica, dai a nossa reflexao sobre as possibilidades e os limites de cada uma. A partir de revisao de literatura observou-se que, apesar de a teoria vigente dar mais suporte a tecnica de verbalizacao concorrente, alguns autores, com base em testes empiricos, apontaram algumas vantagens da tecnica retrospectiva e, ate mesmo, a equipararam em termos de qualidade a tecnica concorrente. O protocolo verbal mostra-se bastante eficaz em compreender os processos cognitivos relacionados a uma pesquisa presencial que busca compreender o contexto do trabalho do ator social por meio da captacao de verbalizacoes que complementa a coleta formal de dados e informacoes.

El proceso de datos abiertos en Brasil y España: aspectos positivos y dificultades

Abstract: Con la popularizacion del uso de internet y el avance de la sociedad civil organizada cada vez mas paises han iniciado la implementacion del modelo de Gobierno Abierto. Algunos autores han argumentado sobre los contrastes entre los paises, especialmente por las diferencias en las tradiciones democraticas. En esa direccion, comprender los desafios y las limitaciones en el proceso de Datos Abiertos en diferentes paises podra ofrecer insights teoricos y practicos capaces de rellenar lagunas aun existentes en la teoria sobre democracia, participacion social y transparencia. Por tanto, considerando las diferencias y similitudes entre Brasil y Espana, se pretende realizar un analisis comparativo a partir de las lecciones y de las experiencias, asi como de los desafios y las limitaciones entre esos paises.

Kant e as analogias musicais

Abstract: Ademais do glossario filosofico, Kant emprega muitos outros repertorios linguisticos; dentre eles, por exemplo, o musical. O presente estudo, considerando o lexico musical kantiano, nao tem como objetivo a promocao estetica da musica no cenario da filosofia critica, mas o reconhecimento e a analise preliminar de um recurso argumentativo utilizado pelo filosofo, a saber, a analogia musical.

Efeito cumulativo da Levodopa ao transpor obstáculo: Estudo de caso de paciente com doença de Parkinson

Abstract: Cumulative effect of Levodopa in obstacle crossing: Case study of a Parkinson disease patient Abstract: The locomotor behavior of individuals with Parkinson's disease (PD) is strongly affected by the Levodopa kinetics. Patients on advanced stage of the PD can show absorption problems of this substance. However, this issue is little discussed on the literature. Then, our aim was to analyze indirectly the Levodopa kinetics on the locomotor behavior during one day by means of the gait kinematic analyses during obstacle avoidance of one PD patient in advanced stage. WM, man, 72 years of age, 18 years with PD, stage IV of the disease, participated in this study. WM presented the following history: PD initiated by tremors of the right hand followed by tremors on the left hand, rigidity in the right lower limb first and on the left lower limb latter and then the cervical region; palidotomy 10 years ago decreasing the tremors. WM came into the lab for testing twice in the same day. During the afternoon, the patient presented larger improvements in his motor functions. The spatial and temporal parameters of the free walking and the obstacle avoidance revealed a cumulative effect of the motor responses to the Levodopa. This effect was observed by improvements in all variables and their variability. WM used adaptive locomotor strategies during obstacle avoidance. The Levodopa was efficient to normalize the gait pattern during the day.