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Heterogeneidade do substrato e suas rela??es com a comunidade arbustivo-arb?rea do cerrado na Cadeia do Espinha?o.

Mota, S?lvia da Luz Lima
Fonte: UFVJM Publicador: UFVJM
Tipo: Dissertação de Mestrado
POR
Relevância na Pesquisa
56.33%
ABSTRACT The objectives of this work are: (a) evaluate the floristic, structural and environmental similarities of three savannah areas sampled in Upper Jequitinhonha Valley, inserted in the Cadeia do Espinha?o, Minas Gerais: area 1- Rio Preto State Park (PERP) in S?o Gon?alo do Rio Preto; area 2 - Biribiri State Park (PEB) in Diamantina and area 3 ? Guapuruvu Reserve (RG) in Itamarandiba; Minas Gerais, in order to contribute to the knowledge of the patterns of regional flora; (b) to verify how the rock outcrops have influence on the ecological patterns of shrubs and arboreal species of an area of rocky stricto sensu savanna in PEB and go through the existence of indicator species in a specific type of ambient related rocks; e (c) evaluate the correlations between the distribution and density of shrub and arboreal species with the environmental variables and realize based on this correlation, a stratification of the area and describe the floristic composition and the total community structure and for each ambient formed in the fragmentation of the area of savannah stricto sensu studied in PERP. Plots of 20???50?m?(1,000?m?) were located by systematic form, with seventeen plots in area 1 (PERP), ten in area 2 (PEB) and nineteen in area 3 (RG)...

Influ?ncia da manuten??o de Leishmania (Leishmania) amazonensis em meio de cultura ax?nico sobre a infecciosidade dos parasitos e sua correla??o com a atividade ecto-nucleotid?sica

Assis, Elisangela Aparecida de
Fonte: Programa de P?s-Gradua??o em Ci?ncias Biol?gicas. N?cleo de Pesquisas em Ci?ncias Biol?gicas, Pr?-Reitoria de Pesquisa e P?s Gradua??o, Universidade Federal de Ouro Preto. Publicador: Programa de P?s-Gradua??o em Ci?ncias Biol?gicas. N?cleo de Pesquisas em Ci?ncias Biol?gicas, Pr?-Reitoria de Pesquisa e P?s Gradua??o, Universidade Federal de Ouro Preto.
Tipo: Dissertação
PT_BR
Relevância na Pesquisa
56.25%
Parasitos pertencentes ao g?nero Leishmania quando s?o mantidos em cultura por passagens sucessivas apresentam redu??o na infecciosidade. As cepas infectantes dos parasitos possuem maior atividade ecto-nucleotid?sica do que as n?o infectantes. Para avaliar a exist?ncia de correla??o entre o tempo de manuten??o em cultura, a infecciosidade e a hidr?lise de nucleot?deos em Leishmania amazonensis o parasito citado foi mantido em cultura por passagens sucessivas. Os parasitos mantidos em cultura por poucas passagens (p<15) apresentaram maior hidr?lise dos nucleot?deos ATP, ADP e AMP e maior porcentagem de formas infectantes quando comparados com aqueles mantidos em cultura por v?rias passagens (p>100). Para avaliar o curso da infec??o causada por passagens diferentes do parasito, os camundongos C57BL/6 foram inoculados na pata com formas promastigotas totais ou metac?clicas. O curso da infec??o foi acompanhado por um per?odo de oito semanas. Os camundongos inoculados com os parasitos mantidos em cultura por poucas passagens desenvolveram les?es maiores e produziram IFN- em menor quantidade quando comparados com o grupo de animais que recebeu o in?culo dos parasitos mantidos em cultura por v?rias passagens. N?o foi verificada a produ??o de IL-4. O re-isolamento de parasitos...

An?lise da correla??o entre a angula??o (mesiodistal) dos caninos e a inclina??o (vestibulolingual) dos incisivos

OHASHI, Amanda Sayuri Cardoso; NASCIMENTO, Karen Costa Guedes do; NORMANDO, Antonio David Corr?a
Fonte: Universidade Federal do Pará Publicador: Universidade Federal do Pará
Tipo: Artigo de Revista Científica
POR; ENG
Relevância na Pesquisa
56.42%
OBJETIVO: avaliar o n?vel de correla??o entre a angula??o dos caninos e a inclina??o dos incisivos. M?TODOS: a angula??o mesiodistal dos caninos e a inclina??o vestibulolingual dos incisivos foram obtidas em um programa digital gr?fico (Imagetool?), a partir de fotografias padronizadas dos modelos de 60 pacientes. A inclina??o dos incisivos foi, ainda, avaliada pela cefalometria lateral. RESULTADOS: o erro casual mostrou uma varia??o em torno de 2? nas medidas feitas nos modelos (1,8?2,5?), enquanto o erro sistem?tico, avaliado pela teste de correla??o intraclasse, revelou uma excelente reprodutibilidade para ambos os m?todos empregados (p<0,001, r=0,84?0,96). Testes de correla??o linear revelaram uma correla??o positiva significativa entre a angula??o dos caninos e a inclina??o dos incisivos para a arcada superior (r=0,3, p<0,05), e mais significativa para a arcada inferior (r=0,46?0,51, p<0,001), quando ambas foram mensuradas nos modelos. Entretanto, quando a inclina??o dos incisivos foi examinada pela cefalometria, o n?vel de correla??o foi estatisticamente insignificante para os incisivos superiores (r=-0,06?0,21, p>0,05) e variou bastante na arcada inferior (r=0,14?0,50), dependendo da grandeza correlacionada. CONCLUS?O: ratifica-se a introdu??o de mudan?as na angula??o dos caninos com o intuito de acompanhar as compensa??es observadas na inclina??o dos incisivos...

Correla??o de po?os com m?ltiplos perfis atrav?s da rede neural multicamadas

AMARAL, M?dio da Silva
Fonte: Universidade Federal do Pará Publicador: Universidade Federal do Pará
Tipo: Dissertação de Mestrado
POR
Relevância na Pesquisa
56.47%
A correla??o estratigr?fica busca a determina??o da continuidade lateral das rochas, ou a equival?ncia espacial entre unidades litol?gicas em subsuperf?cie, a partir de informa??es geol?gico-geof?sicas oriundas de po?os tubulares, que atravessam estas rochas. Normalmente, mas n?o exclusivamente, a correla??o estratigr?fica ? realizada a partir das propriedades f?sicas registradas nos perfis geof?sicos de po?o. Neste caso, busca-se a equival?ncia litol?gica a partir da equival?ncia entre as propriedades f?sicas, medidas nos v?rios po?os de um campo petrol?fero. A t?cnica da correla??o estratigr?fica com perfis geof?sicos de po?o n?o ? uma atividade trivial e sim, sujeita a in?meras possibilidades de uma err?nea interpreta??o da disposi??o geom?trica ou da continuidade lateral das rochas em subsuperf?cie, em fun??o da variabilidade geol?gica e da ambig?idade das respostas das ferramentas. Logo, ? recomend?vel a utiliza??o de um grande n?mero de perfis de um mesmo po?o, para uma melhor interpreta??o. A correla??o estratigr?fica ? fundamental para o engenheiro de reservat?rio ou o ge?logo, pois a partir da mesma, ? poss?vel a defini??o de estrat?gias de explota??o de um campo petrol?fero e a interpreta??o das continuidades hidr?ulicas dos reservat?rios...

Variabilidade da composi????o qu??mica em gr??os de aveia branca (Avena sativa L.).; Variability in the chemical composition of white oat grains (Avena sativa L.).

Silveira, Solange Ferreira da Silveira
Fonte: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Agronomia; UFPel; BR Publicador: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Agronomia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
56.33%
With a good chemical composition of grains, oats are appropriate for human and animal consumption, as an alternative to supplie the demand for functional foods. In this context breeding programs of oats need to understand the dynamics of the characters related to chemical quality of the grain in order to provide the consumers, cultivars with high nutritional quality, adequate for the purpose intended. This study aimed to increase knowledge about the chemical components of oat grains, seeking to evaluate the correlation between these characters and to characterize the cultivars. Experiments were conducted with two segregating populations at the in the experimental field of the Plant Genomics and Breeding Center (FAEM / UFPel) located in the municipality of Cap??o do Le??o/RS and cultivars grown in Cap??o do Le??o and Passo Fundo/RS. One of the populations was generated from crosses between the IAC 7 x UFRGS 19 and the other population was generated from crosses between UPF 15 and ALBASUL. The cultivars adopted in this study were: FAPA Louise, URS FAPA Slava, URS Taura, URS Torena, URS 21, Barbarasul, URS 22, URS Charrua, URS Guapa, Brisasul, FAEM 4 - Carlasul, FAEM 5 - Chiarasul, FAEM 6 - Dilmasul , UPFA Gaud??ria and URS Guria. Chemical analyzes were done by near infrared spectroscopy (NIRS). The characters evaluated were the contents of proteins...

Estimativa de par??metros gen??ticos de caracteres de produ????o e de apar??ncia de tub??rculo de batata (Solanum tuberosum L.); Estimates of genetic parameters for yield and tuber appearance traits of potatoes (Solanum tuberosum L.).

NEY, Vicenti Gon??alves
Fonte: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Agronomia; UFPel; BR Publicador: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Agronomia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.33%
Yield components and tuber appearance components constitute the two trait groups primarily considered in potato selection. Therefore, the establishment of selection criteria for these characters is essential for defining the strategies for breeding. The choice of parents and trait selection in early generations, when carefully defined and incorporated as a practice in breeding programs, increase efficiency and reduces the cost of developing new cultivars. The objectives of this research were (i) to estimate genetic variability, heritability and expected selection gain for yield components and tuber appearance in early generations, and (ii) to investigate the relationship between phenotypic traits assessed in tubers of potato families in the seedling and the first clonal generation. Twelve potato families were obtained from artificial crosses between two genotype groups: Eliza, C1730-7-94 and C1742-8-95; and Shepody, Asterix, White Lady and Caesar. Crosses were made in factorial mating design (3x4). Each family was constituted of 75 genotypes, distributed a randomly block design with three replications of 25 genotypes per plot. The 12 families were evaluated in the seedling generation, grown in greenhouse, and in the first clonal generation...

Caracteriza????o morfol??gica e molecular para aux??lio no melhoramento gen??tico em g??rbera; Morphological and molecular characterization to support the breeding gerbera

Benemann, Daiane de Pinho
Fonte: Universidade Federal de Pelotas; Biotecnologia; Programa de P??s-Gradua????o em Biotecnologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biotecnologia; Programa de P??s-Gradua????o em Biotecnologia; UFPel; BR
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
66.24%
Gerbera is one of the most important plants in the global ornamental market. Due to fierce competition in this market, obtaining different genotypes is necessary. Therefore, information on the genetic variability of this species may help breeding programs in order to select new promising genotypes. This study aimed to develop EST-SSR markers for gerbera, and to check the genetic variability among accessions by multivariate analysis using morphological (qualitative and quantitative), and molecular markers. Also to analyze the correlation between morphological and molecular markers to elucidate the genetic variability of Gerbera spp.. As a result, 17 EST-SSR markers were developed for use in studies of molecular characterization. These were highly polymorphic and allowed the differentiate of all gerbera accessions. The analysis of morphological (quantitative and qualitative) characters, by means of multivariate analysis and principal components enabled the delection of a wide genetic variability among accessions of gerbera. The correlation analysis between morphological characters show that there is some influence on other characters. The analysis of molecular and morphological data, using the sum of the dissimilarity matrices, it was possible to obtain a better grouping of the accessions studied. The results of this study may assist gerbera breeding programs in the selection of parental genotypes for controlled crossings.; A g??rbera ?? uma das plantas mais importantes no mercado mundial de ornamentais. Dada a grande concorr??ncia nesse mercado...

Clonagem e avalia????o da express??o g??nica do neuropept??deo Y no linguado Paralichthys orbignyanus; Clonagem e avalia????o da express??o g??nica do neuropept??deo Y no linguado Paralichthys orbignyanus

CAMPOS, Vinicius Farias
Fonte: Universidade Federal de Pelotas; Biotecnologia; Programa de P??s-Gradua????o em Biotecnologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Biotecnologia; Programa de P??s-Gradua????o em Biotecnologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
65.9%
Food intake in vertebrates is a complex process involving several endocrine and neural pathways. Among the orexigenic factors, the most notably are the neuropetides as the neuropeptide Y (NPY) that is a 36 amino acid peptide which plays a key role in food intake. Studies evaluating fish NPY expression showed that this peptide is involved in appetite stimulation. However, despite the recent advances, our present knowledge of the regulation of feeding behavior in fish is limited and based in a few fish species, and there is increasing evidence of speciesspecific differences. The Brazilian flounder Paralichthys orbignyanus is being considered for aquaculture, and it is important to understand the mechanisms regulating feeding in order to improve its performance in captivity. The objectives of this study were to clone NPY cDNA, evaluate the mRNA levels in different tissues of flounder, and also evaluate brain NPY expression during 24 h by real-time RT-PCR. A 597 bp NPY cDNA was cloned from Brazilian flounder brain by 3??RACE method. NPY expression was detected in all peripheral tissues analyzed, but with predominant expression in the brain. No significant differences were observed in brain NPY gene expression over a 24 h evaluation period. No correlation was observed among plasma glucose...

Produ????o e qualidade de sementes de arroz (Oryza sativa L.) sob diferentes doses de f??sforo aplicadas ao solo; Produ????o e qualidade de sementes de arroz (Oryza sativa L.) sob diferentes doses de f??sforo aplicadas ao solo

OLIVEIRA, Jo??o Carlos Pinto
Fonte: Universidade Federal de Pelotas; Agronomia; Programa de P??s-gradua????o em Ci??ncia e Tecnologia de Sementes; UFPel; BR Publicador: Universidade Federal de Pelotas; Agronomia; Programa de P??s-gradua????o em Ci??ncia e Tecnologia de Sementes; UFPel; BR
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
65.9%
The objective of this work was to evaluate the quality and the yield compounds of seed of rice when different levels of phosphorus are applied to the soil. The utilization of rock phosphates as source of phosphorus on rice crop has been a growing recommendation, considering the low availability of phosphorus in the system. Besides the majority of bibliographies do not report any effect on grain yield with higher levels of phosphorus in the soil, there is no information on how the seeds of flooding rice behave with respect to the quality and components of production under these conditions. The soil was prepared in the conventional method and fertilized before sowing according the analysis recommendation of soil (55kg.ha-1 of K2O in form of KCl) and phosphorus in form of rock phosphate in the levels: zero, 30, 45, 60, 75 and 90kg.ha-1 of P2O5 and 90kg.ha-1 of nitrogen in surface dressing in form of urea in two times. It was used cv. BRS Quer??ncia in sowing density of 90kg.ha-1 of viable seeds, sowed on November, 23, 2007. The experiment was carried out in Esta????o de Terras Baixas of Embrapa Clima Temperado and at the Laboratory of Seed Analysis Fl??vio Farias Rocha of Agronomy College at the Universidade Federal de Pelotas. The analysis of flag leaf was carried out in Plant Nutrition Laboratory of Embrapa Clima Temperado. The experimental design was with randomized complete blocks design with four repetitions. The seeds were harvest on April...

Educa????o F??sica no Ensino M??dio: Conhecimento e Aptid??o F??sica relacionada ?? sa??de; Educa????o F??sica no Ensino M??dio: Conhecimento e Aptid??o F??sica relacionada ?? sa??de; Physical Education in Middle School: Knowledge and Health-related Physical Fitness; Physical Education in Middle School: Knowledge and Health-related Physical Fitness

CARDOSO, Marcel Anghinoni
Fonte: Universidade Federal de Pelotas; Educa????o F??sica; Programa de P??s-Gradua????o em Educa????o F??sica; UFPel; BR Publicador: Universidade Federal de Pelotas; Educa????o F??sica; Programa de P??s-Gradua????o em Educa????o F??sica; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
56.26%
Introduction: The literature suggests that regular physical exercise is beneficial for the maintenance of health in different age groups. Among children and adolescents, the development benefits of physical fitness leads to physical, cognitive and social. In this context, the role of physical education to promote knowledge and practices aimed at maintaining health through exercise. However, studies have shown that the physical education has not fulfilled this role, because the classes do not reach recommended levels of intensity to increase physical fitness, does not offer students theoretical and practical to adopt an active lifestyle and are centered only in sports. Objective: To verify the impact of teaching procedures centered on gymnastics activities and subsidized by the theoretical and pedagogical foundations that have as main purpose the promotion of health of the physical fitness related to health, knowledge and physical activity score in middle school students. Methodology: The study of quasi-experimental design with intentional non-probabilistic sample comprised 40 students (24 boys, 16 girls) with a mean age of 14.5 years (sd = ?? 0.6). Physical fitness was measured by the sit and reach test, running 9 minutes and abdominal in 1 minute. Knowledge was measured by theoretical test writing. The physical activity score was estimated by the long version of the International Physical Activity Questionnaire (IPAQ). In 32 physical education classes...

Express??o diferencial de genes normalizadores e da fam??lia LTPs1, em gen??tipos de arroz sob estresse salino; Differential expression of normalizing genes and the family LTPs1, in genotypes of rice under saline stress

MORAES, Gabriela Peres
Fonte: Universidade Federal de Pelotas; Biologia; Programa de P??s-Gradua????o em Fisiologia Vegetal; UFPel; BR Publicador: Universidade Federal de Pelotas; Biologia; Programa de P??s-Gradua????o em Fisiologia Vegetal; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
56.26%
On the production of rice, the salinization of the soil and the water of irrigation, during the establishment phases its closely related to the variation in the levels of production. Among the main damages caused by saline stress at cellular level, are the disturbances in the plasmatic membrane, being its effects manifested by alterations on the permeability, lipid composition, electrical potential and activity of proteins linked to it. The proteins LTPs ("Lipid Transfer Proteins") are related to the transfer and connection of fatty acids and phospholipids between membranes, in addition to being involved in the modification of the lipid composition and their biogenesis. On this note, the objective of this work was to analyze the expression of ten candidate genes to normalizing for studies of genetic expression and verify the differential expression of eleven genes LTPs in rice seedlings. The genotypes BRS Bojuru (tolerant) and BRS Ligeirinho (sensitive) were exposed to 150mM of NaCl in times 0, 24, 48, 72 and 96 hours. The normalizing gene UBQ10 was the most stable for these experimental conditions tested, while the least stable were IF-4a, Tip41-Like and Cyclophilin, being, therefore not in, the least indicated. Among the analyzed LTPs genes...

Estresse em arroz (Oryza sativa L.): Correla????o dos efeito de dois ambientes de cultivo.; Stress in rice (Oryza sativa L.): Correlation of the effect of two culture environments

DANIELOWSKI, Rodrigo
Fonte: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Fitomelhoramento; UFPel; BR Publicador: Universidade Federal de Pelotas; Agronomia; Programa de P??s-Gradua????o em Fitomelhoramento; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
76.38%
Rice (Oryza sativa. L) is the second most produced cereal worldwide. Soil salinity is one of the most severe abiotic stresses for various crop species. Currently, 6% of arable land on the planet have a limitation due to salinity levels in the soil, it is estimated that by the year 2050, 50% of agricultural soils present limitations due to soil salinity. Rice is one of the crops most sensitive to soil salinity, reductions in productivity are observed at levels of electrical conductivity of 3.0 dS m-1. The hydroponic growing systems are being increasingly used in scientific studies, and a major advantage of this technique is the control of the studied factors and homogeneity of the environment. This study aimed to evaluate genotypes of rice germplasm bank of EMBRAPA temperate in two hydroponic growing systems effecting the correlation of the results obtained in the two systems. The one experiment was conducted in a greenhouse and the second in a room with controlled temperature and photoperiod. The nutrient solution used in the experiments was YOSHIDA et al. (1976) with some adaptations, and salinity levels used were 0, 30, 60 and 90 mM NaCl. The correlation study was conducted with 24 genotypes evaluated in two experiments, adopting also only 0...

Medi????o da Radia????o Solar Global e Difusa Utilizando Piran??metros com Sensores Fotoel??tricos; Medi????o da Radia????o Solar Global e Difusa Utilizando Piran??metros com Sensores Fotoel??tricos

VICTORIA, Idilio Manoel Brea
Fonte: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
65.9%
In Brazil, most of the Institutions that measure solar radiation and the display only the global radiation incide on a horizontal surface. In the region of Pelotas - RS, the Esta????o Agroclimatol??gica de Pelotas, linked to Embrapa, has had the data of global solar radiation daily estimated from 1971 to 1992 and measurements starting in 1993. Considering that the solar systems should be installed so that a larger amount of energy is collected, the element collectors should be installed with a certain inclination related to horizontal surface and oriented to towards the Equator. That means that the radiation data made available by the Institutions that measure global solar radiation should be worked in a way that it is possible to obtain an estimation of the solar radiation incident on a sloping surface. The existing procedures used by solar system designers in Brazil to estimate the global solar radiation incident on a sloping surface, use statist methods originating from the diffuse measurement incident in other countries. With the objective of better estimating the solar radiation incident on a sloping surface and spreading the diffuse solar radiation measurement through the use of pyranometers which use photoelectric sensors, of low cost...

Padr??es de anomalias da temperatura da superf??cie dos Oceanos Pac??fico e Atl??ntico associados ?? Radia????o de Onda Longa na Am??rica do Sul e ?? precipita????o no Brasil.

REINKE, Guilherme Lauxe
Fonte: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
56.26%
The main objective of the study was to obtain the relation between Pacific and Atlantic Sea Surface Temperature (SST) anomalies and Outgoing Longwave Radiation (OLR) anomalies in South America (SA) and, moreover, evaluate the relationship of rainfall in Brazil to SST. Data from reanalysis of SST and OLR of the NCEP/NCAR were used, between the months of October and March of the period from 1982 to 2007, which was applied the statistical technique of Principal Components (PC), allowing the study of the correlation between the two variables. Data of precipitation of 691 stations in Brazil, obtained from the Instituto Nacional de Meteorologia (INMET), Ag??ncia Nacional de ??guas (ANA) and Funda????o Estadual de Pesquisa Agropecu??ria (FEPAGRO), were correlated with the scores of the SST and were used to prepare the rainfall climatology in the country, which enabled the understanding of the rainfall regime in spring and summer. Finally, a model was developed to forecast of the rainfall in Brazil with two months for advance, between December and March, using as predictors the first five scores of the SST. The correlations between the PC1 of the SST and the PC1 of the OLR shown to be significants at 1%, where the PC1 of SST is related with the ENSO pattern...

A Variabilidade da precipita????o no Rio Grande do Sul e sua rela????o com o ??ndice de Oscila????o Ant??rtica; Variability of rainfall in Rio Grande do Sul and its relationship with the Antarctic Oscillation Index

GARCIA, Maria Arita Madruga
Fonte: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Meteorologia; Programa de P??s-gradua????o em Meteorologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.49%
This research aims to analyze the monthly variations of rainfall in Rio Grande do Sul (RS) relating to monthly changes in the average thickness of the troposphere (700mb) at the bottom of the Southern Hemisphere, which is centered in the region of Antarctica. Monthly anomalies of atmospheric thickness have been represented by principal oscillation pattern that is called the Arctic Oscillation Index. This study is important because RS has played an important role in national agricultural production, and the variable rainfall has been identified as a key role in the productivity of different regional cultures. During the study, monthly rainfall data from 32 meteorological stations in RS has been used, which has been correlated with the Arctic Oscillation Index. The Arctic Oscillation Index has been obtained directly from Climate Prediction Center and the study period has been from 1979 to 2008 and, the correlations between the monthly rainfalls have been tested considering the time lags of index 0, -1, -2, -3 months. The results of the climatology have showed that rainfall in these last three decades have presented patterns and distributed monthly throughout the year and lower values to the south and higher to the north and northwest. The largest temporal gradient in RS has occurred between the months of October and November...

Biofilmes gerados a partir da saliva de crian??as sem e com c??rie na primeira inf??ncia: resposta ao desafio cariog??nico e correla????o com os de suas m??es; Biofilms generated from saliva of children without and with early childhood caries: response of cariogenic challenge and correlation with their mothers

Azevedo, Marina Sousa
Fonte: Universidade Federal de Pelotas; Odontologia; Programa de P??s-Gradua????o em Odontologia; UFPel; BR Publicador: Universidade Federal de Pelotas; Odontologia; Programa de P??s-Gradua????o em Odontologia; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.33%
Micro-organisms belonging to the resident oral microflora are organized into complex communities, the biofilms, and are the direct cause of the caries process. It is necessary to understand the degree to which biofilm physicochemical and nutrient environments affect the plaque development in individuals differing in their oral environments. In this context, microcosm biofilm models could be used to answer specific questions related to caries. The aim of this study was to test the hypothesis that microcosm biofilms growth from inoculums of caries free children (CF), childrenwith early childhood caries (ECC) and with severe early childhood caries (S-ECC) would provide the same cariogenic response under regular sucrose exposure. Also, microcosm biofilms formed from saliva of children and their mothers considering cariogenic response and microbiota composition were compared. Three children of each group were selected: CF, ECC and S-ECC and their mothers. The mother-child pairs were examined and the dental status was recorded. Saliva samples were collected and screened for microbial composition. Microcosm plaque biofilms were initiated from saliva, growth on bovine enamel discs in artificial saliva enriched with mucin (DMM) for up to 10 days in 24-well microplates under anaerobic conditions. Biofilms were growth with and without sucrose under a semi-dynamic regimen previously tested. DMM was replaced daily and pH measurements were recorded for DMM with sucrose or DMM without sucrose supernatants.On the 10th day...

An??lise e compara????o de m??todos de estimativa da evapotranspira????o de refer??ncia para a regi??o de Pelotas (RS).; An??lise e compara????o de m??todos de estimativa da evapotranspira????o de refer??ncia para a regi??o de Pelotas (RS).

HALLAL, M??rcia Oliveira Curi
Fonte: Universidade Federal de Pelotas; Agricultura familiar; Programa de P??s-Gradua????o em Sistemas de Produ????o Agr??cola Familiar; UFPel; BR Publicador: Universidade Federal de Pelotas; Agricultura familiar; Programa de P??s-Gradua????o em Sistemas de Produ????o Agr??cola Familiar; UFPel; BR
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
66.26%
The knowledge of the value of the evapotranspiration of the plants determines the ammount of water that must be replaced in the culture so that there are no productivity wastes or attenuation. The values of the reference evapotranspiration are very variable because of the many estimative methods used and also because of the climatic variability of each region. In this sense, the objectives of this work were: to estimate the evapotranspiration using the Penman-Monteith method, considering it as standard due to its precision, and to analyze its values related to the precipitation occurred in the region, identifying the periods where there is necessity of irrigation; to estimate the reference evapotranspiration through indirect methods and compare them to the standard, identifying a simpler method that produces trustable results; to analyze the correlation of the meteorological variables with the standard method in order to identify the most influent variables and, from them, select a method that uses them, with an expression that allows local adjustments in the coefficients. With data of the years between 1971 and 2010 from the Agroclimatologic Station of Pelotas, it was estimated the reference evapotranspiration verifying that the annual average for Pelotas is 2.25 mm d-1. It was also observed that in the period between November 20th and January 20th the average decendial values of precipitation are lower than those of the reference evapotranspiration estimative. From the correlation between methods it was verified that the Blaney-Criddle method is the one that best fits to the standard in all the seasons of the year in all time scales analyzed. Finally...

Aspectos de seguran??a h??drica em sistemas familiares de produ????o de morango sob irriga????o em Turu??u- RS.; Aspects of water security in family production systems of strawberry under irrigation in Turu??u-RS(Brazil)

FRAGA, Rosim??ri da Silva
Fonte: Universidade Federal de Pelotas; Agricultura familiar; Programa de P??s-Gradua????o em Sistemas de Produ????o Agr??cola Familiar; UFPel; BR Publicador: Universidade Federal de Pelotas; Agricultura familiar; Programa de P??s-Gradua????o em Sistemas de Produ????o Agr??cola Familiar; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
56.33%
The strawberry cultivation has been among the main features in family production systems in Turu??u-RS (Brazil), being produced and sold both fresh as well as in the processed form, allowing to the farmers employment generation, income and social inclusion. The strawberry production system, in general, is characterized by the use of soil cover with black color plastic, the use of low tunnels and drip irrigation systems with the fertilizer application through irrigation water (fertigation). The importance and benefits of irrigation for strawberry production have been found by farmers, as it has allowed the improvement of fresh fruits quality. However, as strawberry fields were mostly located far from major water sources, many farmers need to build dams to impound water efficiently, to assure the success of the irrigation for crops, and also to ensure the quality and quantity of water for these activities. Based on this, this study aimed to evaluate: i. spatial and temporal behavior of physical and hydraulic properties of soils in the 0-200 mm layer (available water capacity and water storage) related to irrigation management adopted in 12 crops of strawberry, ii. geotechnical and safety characteristics of two small earth dams used to store water for irrigation of strawberries and other crops...

Caracteriza????o dos sistemas de produ????o de leite na regi??o sul do Rio Grande do Sul: rela????o com a mastite e a qualidade do leite; Characterization of milk production systems in southern Rio Grande do Sul: relationship to mastitis and milk quality

PICOLI, Tony
Fonte: Universidade Federal de Pelotas; Veterin??ria; Programa de P??s-Gradua????o em Veterin??ria; UFPel; BR Publicador: Universidade Federal de Pelotas; Veterin??ria; Programa de P??s-Gradua????o em Veterin??ria; UFPel; BR
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
65.89%
Given the importance of the milk chain in Rio Grande do Sul, aimed to the characterization of production systems in the southern region of the state and relate the quality of milk from cooling tanks. Questionnaires were performed with farmers and milk samples were collected for chemical and microbiological analysis. The dairy business is carried out in 26,06 ha with 8,4 cows in lactating on average. Most farms produce between 50 and 100L/day. 39,3% of the farmers manual milking their animals, only 14,2% perform pre milking disinfection, 53,9% use a cloth to dry the teats of all animals. There was a negative correlation between SCC and production (r = -0,23) and between SCC and lactose (r = -0,39) and positive between lactose content and yield (r = 0,31). Concerning microbiological analyzes, the mean scores were: Staphylococcus sp. (5,32 x106 CFU/mL), S. aureus (1,33 x105 CFU/mL), Enterobacteriaceae (1,82 x107 CFU/mL). There was presence of Escherichia coli (27,8% of farms), Streptococcus agalactiae (6,2%), S. dysgalactiae (37,2%), S. uberis (16,8%), Candida sp. (15,7%), Aspergillus sp. (5,8%) and Trichosporum sp. (3,6%). Risk analyzes showed great chances of S. agalactiae, S. dysgalactiae and S. bovis when using inadequate handling practices and poor facilities. There was a significant difference (p = 0...

Correla????o da press??o arterial com a circunfer??ncia da cintura em

Lima, Mell Cristina a. Sim??es
Fonte: Centro Universitário de Brasília Publicador: Centro Universitário de Brasília
Tipo: Trabalho de Conclusão de Curso
PT_BR
Relevância na Pesquisa
56.41%
Introdu????o: BERGMAN (2010) afirma que indiv??duos com valores de CC (circunfer??ncia da cintura) elevados se comparados aqueles com valores adequados t??m maior chance de apresentar fatores de rico para doen??as cardiovasculares. Objetivo: Avaliar a poss??vel correla????o da press??o arterial com a circunfer??ncia da cintura em escolares. Materiais e M??todos: Este estudo foi transversal, realizado com a for??a de preens??o manual obtida com dinam??metro mec??nico manual (SAEHAN CORPORATION), em 30 alunos de ambos os sexos, de 08 a 10 anos de idade de um Centro Educacional da cidade sat??lite Estrutural. Foram mensurados o peso (kg), a estatura (cm), circunfer??ncia do pesco??o (cm), cintura (cm) e quadril (cm). Resultados: Apesar de serem realizados v??rios testes, a for??a de preens??o manual obteve correla????o positiva e significativa apenas com a PAS e com a circunfer??ncia da cintura (r=0,46 e p = 0,01). No entanto para a PAD a correla????o foi baixa e n??o significativa (r = 0,25 e p = 0,21). Considera????es finais: A circunfer??ncia da cintura apresentou correla????o positiva e significativa com a PAS, e correla????o positiva baixa n??o significativa com a PAD, o que parece demonstrar que ao aumentar a circunfer??ncia da cintura...