Perdas na colheita mecanizada de soja no estado de Minas Gerais

O presente trabalho teve por objetivo avaliar as perdas na colheita de soja em função da idade, velocidade de trabalho, sistema de trilha (axial e radial) e condição de propriedade das colhedoras (própria ou alugada), nas regiões do Triângulo Mineiro e Alto Paranaíba - MG, durante a colheita de soja da safra 2002-2003. A velocidade de trabalho das colhedoras e a rotação do cilindro de trilha também foram estudadas, à exceção de quando avaliadas como variável-função. Os resultados obtidos permitiram concluir que as perdas de grãos independem da velocidade das colhedoras e que as colhedoras com até cinco anos, independentemente da sua taxa de utilização anual, tiveram menores perdas do que as colhedoras com mais de seis anos. As colhedoras próprias apresentaram menores perdas comparadas com as alugadas, e as máquinas com sistema de trilha axial apresentaram menores perdas do que aquelas com sistema de trilha radial.

Orientação espacial em adultos com deficiência visual: efeitos de um treinamento de navegação

O objetivo deste estudo foi demonstrar se um programa de navegação pode ajudar indivíduos com deficiência visual a melhorar a acurácia na orientação dinâmica. Nove participantes com deficiência visual retornaram a um ponto de partida após percorrer rotas em linha reta e triangular. Pré e pós-avaliações foram feitas entre um período de 4 meses, durante o qual o treinamento com navegação foi realizado. Entre pré e pós-teste, erros relativos de desvios angulares (ERDA) foram diferentes apenas na tarefa em linha reta. O valor de ERDA foi maior na tarefa em linha reta possivelmente por causa da magnitude do giro inicial antes de retornar ao ponto de partida (i.e., 180º) em contraste com a tarefa triângulo (i.e., 45º). Conclui-se que, em tarefas de orientação, os erros no desvio angular dependem da amplitude do giro inicial ao retornar para o ponto de partida. Ainda, a acurácia na manutenção da direção é influenciada por um treinamento específico com navegação.

Inquérito soroepidemiológico sobre a infecção chagásica em doadores de sangue na região do Alto Paranaíba, Minas Gerais

This study aimed to evaluate the seroprevalence of Trypanosoma cruzi infection in blood donors of the core of Patos de Minas Regional Foundation's Hemominas, MG. To this end, tests were used (ELISA) and Reverse Passive Hemagglutination (HPR). Through retrospective study from 1996 to 2006, was considered the result of serological 21,787 donors where 259 (1.2%) were seropositive for T. cruzi infection and the highest number of seropositivity was found in the group of 41-50 years. The total number of donors tested, 15 143 (69.5%) were male and 6644 (30.5%) females giving a seroprevalence rate of 170 (0.8%) and 89 (0.4%) respectively. This seroepidemiological survey showed that still prevail rates of transmission of Chagas disease, which reinforces the idea of the need for serological tests for the prevention of Chagas disease, especially in endemic areas as the region of Triangulo Mineiro and Alto Paranaiba.

The Bauru Group: A continental Cretaceous unit in Brazil - Concepts based on micropaleontological, oxygen isotope and stratigraphical data

The integration of outcrop and subsurface information, including micropaleontological data, facies and sequence stratigraphic studies, and oxygen isotope analysis, allow us to present a new stratigraphic model for the Cretaceous continental deposits of the Bauru Group, Brazil. Thirty-eight fossil taxa were recovered from these deposits, including 29 species of ostracodes and 9 species of charophytes. Seven of these ostracode species and three subspecies are new and formally described here. The associations of Chara barbosai - Ilyocypris cf. riograndensis, found in the Adamantina Formation, and Amblyochara sp. - Neuquenocypris minor mineira nov. subsp., found in the Marília Formation. Ponte Alta Member, represent two distinct groups that are respectively Turonian-Santonian and Maastrichtian (probably Late Maastrichtian) in age. Therefore, a hiatus, encompassing more than 11 Ma, separates those two formations. From bottom to top, four depositional cycles were recognized in the Bauru Group in western São Paulo: cycles 1 and 2 belong to Caiuá Formation (fluvio-lacustrine and lacustrine deposits in the Presidente Prudente region), cycle 3 to the Santo Anastácio and lower Adamantina Formation (respectively fluvial and lacustrine deposits), and cycle 4 to the upper Adamantina Formation (fluvio-lacustrine facies). An erosional unconformity separates the Caiuá and Santo Anastácio Formations (between cycles 2 and 3). The Marília Formation is a distinct unit from the underlying succession; it does not occur in western São Paulo, but is found in restricted areas of São Paulo, Minas Gerais, Mato Grosso do Sul and Goiás States. During the deposition of the Bauru Group (Aptian? to Maastrichtian) the climate was hot and arid-semiarid. Shallow lakes underwent fluctuations in expansion (wet phases) and contraction (dry phases), as well as variations in salinity. During the deposition of the Adamantina Formation (Turonian-Santonian) there were long, dry periods that caused segmentation of large lakes (due to topographic irregularities in the basaltic substrate) and sometimes exposures of the lake floors; when flooded these lake floors were colonized by extensive meadows of single species of charophytes. Small ephemeral ponds, that were hydrochemically unstable and colonized by multiple species of charophytes, were the depositional sites for the marls and mudstones of Ponte Alta Member (Maastrichtian, Late Maastrichtian?). Our micropaleontological age control, combined with the Late Cretaceous ages of volcanic ashes found in the southeastern Brazil coastal basins, and the stratigraphic position of analcimites from the Jaboticabal-SP region, suggest a Late Coniacian-Santonian age for important magmatic events occurred in the interior of Brazil (north-central São Paulo State, Triângulo Mineiro, and southwestern Goiás State).

Distribution of antibodies against Neospora caninum, BVDV and BHV-1 among cows in brazilian dairy herds with reproductive disorders.

Neospora caninum, bovine viral diarrhea virus (BVDV) and bovine herpes virus 1 (BHV-1) are worldwide spread pathogens associated with reproductive problems in cattle. The present work aimed to observe the infection pattern of these three pathogens in two dairy herds with distinct reproductive managements from Triângulo Mineiro, Minas Gerais State, Brazil. The herds were not vaccinated against either N. caninum, BVDV or BHV-1. Blood samples were collected and analyzed for presence of specific antibodies, and N. caninum IgG avidity was measured in N. caninum positive samples. In herd 1, 34 out of 174 sampled cows (20%) had antibodies to N. caninum and the seropositivity of BVDV and BHV-1 were 62% and 86%, respectively. Of 69 sampled cows in herd 2. 7 (10%) had antibodies to N. caninum, and 49% and 39% were seropositive to BVDV and BHV-1, respectively. The IgG avidity profiles indicated that N. caninum had been present in both herds for some years and that herd 1 had an ongoing horizontal spread of the parasite. The results indicate that the studied reproductive pathogens were present in the herds and partly may have contributed to their reproductive problems.

Produção e Qualidade Física dos Frutos do Abacaxi sob Diferentes Lâminas e Frequências de Irrigação

The objective of this study was to evaluate the performance of pineapple cultivar Smooth Cayenne as the physical production and the quality of the fruit when subjected to different frequencies of water dpeth and soil water in Triângulo Mineiro - Uberaba-MG. The experimental area soil is Oxisol, clay loam sandy and soft undulating local relief. A randomized block design in a factorial 4 x 2 with four levels of soil water depth (50%, 75%, 100% and 125%) of crop evapotranspiration (ETc) and two irrigation frequencies (1 day and 3 days = F1 = F2) and four replications was utilized. The crop productivity, number of seedlings, mean weight, diameter, and hardness of the fruit, plus water use efficiency were evaluated. Productivity was not significantly affected by the water depth and by the frequency of water applied; however the fruit shell resistance, the efficiency of water use, and ratoon seedlings were significantly influenced by irrigation, the water depth of 50% of the crop evapotranspiration (ETC) provided greater efficiency of water use for the production of pineapple fruit.

Conchostráceos (Spinicaudata, Crustacea) do grupo Bauru (cetáceo superior, Bacia Bauru): taxonomia, paleoecologia e paleogeografia

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

Um legislador nas Gerais: vida e obra do Cônego Hermógenes Casimiro de Araújo Brunswik (1783-1861)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A fabricação do urbano: civilidade, modernidade e progresso em Uberabinha-MG (1888-1929)

Pós-graduação em História - FCHS

Colégio Normal Nossa Senhora do Patrocínio: um instrumento de educação feminina na Zona do Alto Paranaíba em Minas Gerais 1928-1950

Pós-graduação em História - FCHS

Fitonematóides na cultura da batata: reação de genótipos a Meloidogyne spp., distribuição de espécies e caracterização dos sintomas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Degradação ambiental da bacia hidrográfica do rio Uberaba - MG

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Estudos biológicos e moleculares de begomovirus infectando pimentão (Capsicum annuum) no Estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Biologia e ecologia dos camarões de água doce Macrobrachium amazonicum (Heller, 1862) e Macrobrachium jelskii (Miers, 1778) (Crustacea: Caridea: Palaemonoidea) no Rio Grande, região de Planura. MG

Pós-graduação em Ciências Biológicas (Zoologia) - IBB

Território, política e infraestruturas: a influência do governo federal na política urbana dos municípios brasileiros

The evolution of Brazilian federalism (result of the influence and power of oligarchic elites, the different constitutional texts made and policies designed to collect taxes) shows one of the forms of how the Brazilian government uses the territory to effect the exercise of power. In the country, this use takes place by the imposition of rules that regulate and create tension among the entities, and mechanisms of distribution and redistribution of resources among federal agencies acquire great importance because they allow a bigger or lesser autonomy in public administration. The text aims to analyze the voluntary transfers of resources from the Federal Government to the municipalities. These Covenants act as a mechanism that can be configured in promoter of new selectivity and hierarchies between places. With the aim to understand the materialization of public resources in the territory, our analysis intends to identify how the Brazilian government makes use of constitutional mechanisms to enlarge and improve the urban infrastructure in the municipal scale.