Fatores de risco para casos repetidos de mastite clínica em vacas leiteiras de alta produção

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

Degradação de geomembranas de polietileno de alta densidade (HDPE) após exposição à intempérie e lixívia

This paper presents some results of MFI and OIT tests performed on HDPE geomembranes of 0,8 and 2,5 mm that were exposed to weathering effects and leachate after 30 months (2,5 years). The aim of this work is the evaluation of the oxidative degradation process by comparison of fresh and exposed samples results. The expositing and tests were performed according the following standards recommendations: ASTM D1435 (weathering), ASTM D5747 e D5322 (leachate), ASTM D1238 (MFI) e D3895 (OIT). The results shows, for instance, that the MFI values presented high increases on the HDPE (2.5 mm) showing that polymeric chain break occurred for both exposures and, therefore, oxidative degradation. Concerning the OIT values all the geomembranes presented very low values even in the fresh samples. This demonstrates that there wasn’t an antioxidant package appropriate for these membranes.

Uso da cromatografia gasosa para avaliação da difusão em membrana de Polietileno de Alta Densidade (pead) em contato com hidrocarboneto

The constant petrol fuel leak in gas stations has caused concern in many countries around the world. Those fuels have toxic organic compounds in their composition, like Polycyclic Aromatic Hydrocarbons (PAH), which are harmful to the human health. In this work the efficiency of the protection layer with a High Density Polyethylene (HDPE) membrane of 2.5 mm thickness was evaluated. The study was based in the diffusive process in the intact membrane by a permeameter developed to evaluate the diffusive process. The membrane was putted in the middle of the system to separate two sides: a local soil impregnated with diesel oil (in one side) and pure water (in the other side). The chromatography technique was conducted to evaluate the contamination in the pure water. The analyses were made monthly in a total period of 6 months of research. The results tests show that the membrane was less effective to antracene and naphthalene compounds. Despite that, the results showed that the HDPE membrane is a good alternative to prevent contamination of water and soil by the compounds under study up to one year, based on the performance in the time of study.

Investigação geoambiental de áreas contaminadas com elaboração do modelo conceitual em campo utilizando ferramentas de alta resolução (HRSC)

The Brazilian geo-environmental site characterizations usually do not provide a suitable Conceptual Site Model (CSM). Site assessments are mostly inappropriate and there is a lack of knowledge about the subsurface environment, generated by inconsistent data that will guide risk analyses and remediation projects full of uncertainties, causing delay on closing cases, inefficient remediation and higher global projects costs. The step of data collection must have high priority to develop a suitable CSM,, and it demands more effective high resolution site characterization (HRSC) tools than the traditional ones and, preferably, the decision-making have to be done in the field. This paper presents and discusses two geo-environmental site characterization results, in which the decision-making was done in the field based on high resolution site characterization (HRSC) used together with the traditional ones. These site investigations provided a significant time saving, allowed the detection of subsoil heterogeneities, a proper understanding of the subsurface environmental, and have generated a solid CSM in real-time. These CSM can subsidize remediation projects based on a more reliable data than those that would be obtained in traditional site investigations, concerned just in following the rules established by the environmental agencies.

Ultrassonografia modo B de alta resolução modo Doppler e uso de contraste de microbolhas na avaliação testicular de gatos domésticos

Pós-graduação em Medicina Veterinária - FCAV

Resposta metabólica e inflamatória em exercício aeróbio moderado contínuo e intermitente de alta intensidade com volume equalizado

Pós-graduação em Fisioterapia - FCT

Efeitos da alta temperatura na pigmentação visceral e no epitélio germinativo masculino em Physalaemus nattereri e Leptodactylus fuscus (Anura)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise-multitemporal da paisagem, potecialidades e fragilidades sob a ótica do uso e ocupação: destaque para as terras da Alta Bacia do Rio Taboco-MS

Pós-graduação em Geografia - IGCE

Análise matemática e estatística da produtividade de lavouras cafeeiras agroquímica e orgânica na região da alta paulista

Studies with organic systems have shown the feasibility and ecological and social sustainability of these agroecosystems, unlike the systems agrochemicals (conventional) production. Some studies have concluded that for the model agrochemical exists less interaction between the flow of internal energy, basically the crop receives all inputs to production with no increase in "energy quality" within the system, while in the organic model of production has increased interaction between different resources in the system. The current economic and ecological crisis, exposed no sustainability of the production pattern of industrialized agriculture developed in a way, showing the dependence of developed countries on imports of agricultural commodities produced in the third world, among there coffee. Given these facts, developed a survey to identify problems in the Alta Paulista region, west of São Paulo State, in relation to coffee production systems. Actually, the fundamental problem, according to the research, farmers in this region, is to choose a viable production system correctly (environmental, social and economic); agrochemical or organic. The objectives of this study were to analyze the yield of production systems and agro-chemical and organic coffee in the period from 2003 to 2007, in 30 producing properties, located in this region, in order to point the production system to produce the highest yield. According to the methodology of CONAB, data collected were recorded on spreadsheets to be used as variables in statistical analysis models and mathematics. We performed a descriptive analysis of productivity data and were used for statistical analysis tests for parametric and nonparametric analysis of variance. The mathematical analyses of the curves were prepared with Origin for Windows 6.0 software, which uses numerical methods to fit the data supplied to a function of variable parameters. Unlike conventional systems of production, the organic system showed greater viability of the production model. Furthermore, with the quantitative modeling proposal, it is possible to perform the evaluation of these types of investments, providing more security to the farmer at the time of decision.

Acidentes de trabalho em hospital público de alta complexidade no interior paulista: estudo das concepções de segurança

Pós-graduação em Saúde Coletiva - FMB

Identificação de regiões polimórficas para alta produtividade de mel e sequênciamento genômico em abelhas Apis mellifera africanizadas

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

Estudo da influência do tratamento térmico a laser nas características dos aços avançados de alta resistência dual phase 600 e transformed induced plasticity 750

Pós-graduação em Engenharia Mecânica - FEG

Avaliação in vitro do tempo de fotopolimerização com led de alta potência de bráquetes ortodônticos e remoção de adesivo remanescente sob luz ultravioleta

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo de associação genômica e perfil de expressão gênica de folículos antrais em novilhas das raças nelore e angus, associadas ao fenótipo de alta e baixa população folicular

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