Liberação controlada de nutrientes e novos sistemas para avaliação de espécies químicas empregadas na fertilização

Pós-graduação em Química - IQ

Variação sazonal das variáveis físicas e químicas em riachos de duas bacias da região centro-sul do estado do Paraná, sul do Brasil

The present study was developed in two streams from the two different drainage basins located in the mid-southern region of Paraná state. In each stream were evaluated some physical and chemical parameters in open (without streamside vegetation) and shaded (with streamside vegetation) segments. Monthly samplings were carried out from January to December 2007. The following limnological parameters were measured: water temperature, specific conductance, oxygen saturation, pH, turbidity and current velocity. In the same stream were not observed differences among segments from the drainage basins, and nominal values and seasonal pattern have been very similar between open and shaded ambient. A Principal Component Analysis (PCA) showed small divergence between streams and segments, with separation of groups with base sampling dates. The results suggest that the region is homogeneous according to physical and chemical water conditions, therefore, stronger influenced for time factor, and diverging seasonal periods associated a climatic region condition.

Preparação pelo método poliol modificado, caracterização estrutural e espectroscópia de nanopós de niobato de potássio e neodímio e de suas condições sólidas dopadas em európio

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de filmes biodegradáveis à base de zeína, caracterização das propriedades funcionais e estruturais e avaliação do uso como cobertura na conservação das características físico-químicas do queijo Minas padrão

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

Adsorção-fotodegradação do herbicida paraquate em água pela argila Na-Bentonita e por novos materiais TiO2-Bentonita, TiO2/ZnOBentonita, Al/Fe-Bentonita e Al/Fe.Cu-Bentonita

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Os limites do corpo: modificações corporais

El cuerpo presenta rastros de la historia y cultura de las sociedades por toda la historia de la humanidad. El presente estudio quiere, através de pesquisas sobre el cuerpo, entender como las modificaiones corporales han acompañado la historia del hombre, de las tribus antiguas hasta la atualidad y como son hoy los procedimientos de cambiar la forma física. Através de trabajo de campo conocer profisionales que hacen algunos tipos de modificaciones corporales y gente que las tienen en sus cuerpos, entender las razones para que cambien sus cuerpos permanentemente - en la mayoria de los casos - y como la idea de individualidad surge cuando se hace una marca personal en el cuerpo. Además, compreender el porque esas prácticas se están convirtiendo cada vez mas común en nuestra sociedade actual

Principais modificações na pós-graduação no Brasil e suas implicações na qualidade de vida dos professores universitários

This work aimed to point out the major changes in post-graduation and their implications on professor's well-being. For this proposal, exploratory research was carried out using books and periodicals, indexed in SciELO and Web of Science. We tried to emphasize research published in the last decade. The subject is difficult to bound, as the definition of quality of life itself depends on geographical and cultural aspects. Thus, the main aspects that surround this controversial issue were selected, with no claim to exhaust it. It is pretty clean that university managers believe that the university must meet the productivist requirements. Therefore, university and undergraduate, which in the recent past were spaces of thinking, became a series production space. In this scenario it is not enough pure research and long-term, but the rapid and direct research. Also, some studies already show the relationship between the work of public universities and health issues. It is believed that the deleterious relationship between the productivist pressure and the teacher's quality of life will be quite evident in a near future

Estudo da variação horizontal das condições químicas, físicas e biológicas no reservatório de Itupararanga, Votorantim-SP e suas potenciais influências na toxicidade do sistema

Pós-graduação em Ciências Ambientais - Sorocaba

Técnicas intervencionistas de recuperação ecológica em áreas florestais e influências nas características físicas, químicas e isotópicas dos solos

Pós-graduação em Engenharia Civil e Ambiental - FEB

Desenvolvimento de bebida láctea potencialmente probiótica carbonatada: características físico-químicas, microbiológicas e sensoriais

The goal of this work was to develop a strawberry fl avored dairy beverages carbonated and fermented with potential probiotic bacteria. Four formulations of dairy beverages were elaborated: Control (BL); Fermented (BLF); Carbonated (BLC) and Carbonated Fermented (BLFC). In samples submitted for carbonation, a carbonator was used for the carbon dioxide (CO2 ) gas injection dissolved in drinking water and the cultivation consisting of lactic bacteria Lactobacillus acidophilusLA-5®, Bifi dobacterium BB-12® and Streptococcus thermophilus (Biorich, Chr. Hansen) was employed on the fermented samples. The samples were characterized by physical and chemical, microbiological and sensory parameters. The BLC sample showed the presence of yeasts and coliform counts, but the counts indicated that it was suitable for consumption in 28 days time. The BL presented average coliform counts above the limit established by the law after 21 days of refrigerated storage. The presence of lactic bacteria and CO2 and their effects on lower proteolysis indexes, lower pH values and higher acidity values were correlated with signifi cant inhibitory effect of contaminated microorganisms in the BLF and BLFC. The carbonation was not stimulatory for the growth of lactic crops, mainly in the genus Bifi dobacterium spp. and Streptococcus spp. The BLF drink presented greater sensory acceptance and purchase intention test results, however the carbonated beverage presented positive results, with mean values greater than 50% in the acceptance tests with potential inclusion as sensory differential in dairy beverages. Just BLFC drink was considered potentially probiotic, by presenting minimum counts of Lactobacillus spp. during storage. Further studies should be conducted with the technology of carbonation, since it has been proven the correlation of the presence of CO2 with inhibitory effect of contaminated microorganisms and lower physical and chemical changes of dairy beverages.

Substrato flexível portátil para detecção e análises químicas usando fenômenos de amplificação sers e serrs por espectroscopia micro-raman e processo de obtenção do dito substrato

É descrita a invenção de um substrato flexível portátil para detecção e análises químicas usando fenômenos de amplificação sers e serrs por espectroscopia micro-raman e processo de obtenção do dito substrato. É descrita a invenção de um substrato flexível portátil para detecção e análises químicas usando fenômenos de amplificação sers (surface enhanced raman spectroscopy) e serrs (surface-enhanced resonance spectroscopy) por espectroscopia micro-raman e respectivo processo de obtenção do dito substrato que provê um substrato de borracha natural impregnando com nanopartículas de ouro.

Caracterização de Filmes a-C:H:Cl e a-C:H:Si:Cl produzidos por deposição à vapor químico assistido por plasma (PECVD) e deposição e implantação iônica por imersão em plasma (PIIID)

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Características físico-químicas de amidos de genótipos de bananeiras

Pós-graduação em Zootecnia - FMVZ

Pesticidas: uma revisão dos aspectos que envolvem esses compostos

Pesticids are chemical products used to control plagues (animal and vegetable) and plant diseases. Due to the process of automation occurred in the agriculture in 1960-1970, the agrotoxics began to be largely used in Brazil. Their physical-chemical proprieties, as well as the frequency of use, form of application, environmental biotic and abiotic characteristics and climatic conditions will determine their environmental destination. These variables will define the spectrum of environmental impacts and human health problems caused by the agrotoxics. The human health impacts might be acute or chronic, mainly upon neurological, reproductive and respiratory process. In the environment, the agrotoxics cause transformations and modifications in biota, water, soil and other ecosystems. To make farmworkers aware of alternatives to massive use of agrotoxics is the guarantee for an agriculture development more sustainable, without disorders in human health and in environment