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Search Results: 1 - 10 of 5246 matches for " Anderson Claiton;Majerowicz "
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Hydroponic lettuce production in different concentrations and flow rates of nutrient solution
Genuncio, Gláucio da C;Gomes, Marcelle;Ferrari, Anderson Claiton;Majerowicz, Nidia;Zonta, Everaldo;
Horticultura Brasileira , 2012, DOI: 10.1590/S0102-05362012000300028
Abstract: the objective of this study was to evaluate the accumulation of fresh weight of hydroponic lettuce in terms of ionic concentrations and flow rates of nutrient solution. this work consisted of three experiments in nft hydroponic system, conducted between july and september 2006. lettuce cultivars lucy brown, izabela and veneza were grown in different ionic concentrations of the 100, 75 and 50% and flow rates of 1.50, 1.00 and 0.75 l min-1. fresh weight gains were observed for lucy brown when grown on 100% of the ion concentration and a flow rate of nutrient solution of 1.0 l min-1. greater fresh mass was observed for cvs. izabela and veneza under the flow rate of 1.5 l min-1. a general analysis of the data allows us to conclude that the application of nutrient solution at a flow rate of 1.5 l min-1, as well as 100% of the ionic concentration is effective to increase the fresh weight of the aerial part of cvs. lucy brown, izabela and veneza when grown in hydroponics.
Estado atual e perspectivas da genética e epidemiologia do alcoolismo
Bau,Claiton Henrique Dotto;
Ciência & Saúde Coletiva , 2002, DOI: 10.1590/S1413-81232002000100017
Abstract: alcoholism is a world scale health problem. alcohol abuse and dependence combined affect approximately 8% of the brazilian population, generating a huge social cost. the recognition of a significant heritability contributed to the understanding of this condition as a specific disease of biological origin. advances in the knowledge of the neurobiology of dependence made possible to delimit a series of candidate genes to the predisposition. currently, investigations on the role of genetic polymorphisms in the response to treatment start taking place. the integration of clinical, epidemiological and molecular genetic approaches may identify clinical groups more responsive to specific therapeutic approaches.
Estado atual e perspectivas da genética e epidemiologia do alcoolismo
Bau Claiton Henrique Dotto
Ciência & Saúde Coletiva , 2002,
Abstract: O alcoolismo é um problema de saúde pública de escala mundial. O abuso e dependência combinados afetam aproximadamente 8% da popula o brasileira, gerando um grande custo social. O reconhecimento da existência de uma herdabilidade significativa contribuiu para o entendimento do problema como uma doen a específica com origem biológica. Os avan os no conhecimento da neurobiologia da dependência permitiram delimitar uma série de genes candidatos para a predisposi o. Atualmente, iniciam-se os estudos sobre o papel de polimorfismos genéticos na resposta ao tratamento. A integra o de abordagens clínicas, epidemiológicas e de genética molecular pode identificar grupos clínicos mais responsivos a abordagens terapêuticas específicas.
Rapid detection by transmission electron microscopy of mycoplasma contamination in sera and cell cultures
Barth, Ortrud Monika;Majerowicz, Selma;
Memórias do Instituto Oswaldo Cruz , 1988, DOI: 10.1590/S0074-02761988000100009
Abstract: transmission electon microscopy has been employed for the rapid detection of mycoplasma in sera and cell cultures. high speed centrifugation of sera or low speed centrifugation of cell debris, followed by negative staining of the resuspended pellet, detected mycoplasma contamination more frequently than a culture method followed by direct fluorescence (dapi), which was used as a control procedure. the appearance of the mycoplasma cell border and content gives some information about particle viability.
Educa o ambiental e cidadania - uma prática escolar
Celi Regina Moro,Claiton Grabauska
Educa??o : Revista do Centro de Educa??o UFSM , 2001,
Abstract: O presente trabalho trata de uma prática de educa o ambiental, desenvolvida com um grupo de alunos que compreende entre as 5a e 8a séries do ensino fundamental, envolvendo o tema: a merenda e a nossa participa o como produtores de resíduos sólidos e organicos na escola, bem como o efeito desses sobre nossa saúde e o meio ambiente. O trabalho foi desenvolvido fora do horário normal de aulas, teve participa o espontanea de alunos e culminou com experiência, passeio e constru o de trabalhos relacionados ao tema, envolvendo demais turmas de alunos e professores da área de Ciências.as, Segundas vanguardas, Arte pós-moderna, Ecletismo estilístico, Pluralismo estilístico historicista.
Induction and differentiation of reproductive buds in Coffea arabica L.
Majerowicz, Nidia;S?ndahl, Maro R.;
Brazilian Journal of Plant Physiology , 2005, DOI: 10.1590/S1677-04202005000200008
Abstract: the induction and differentiation phases of reproductive buds of coffea arabica l. have not received much attention. in the present paper, axillary buds from five plagiotropic branches that developed in the same growing season without fruits (1st crop branches), and from green segments of five recently grown plagiotropic branches with fruits (2nd crop branches), were collected every two weeks during successive inductive months of the year. this study was carried out with adult arabica trees, catuaí vermelho cv. iac 81, cultivated under normal farming conditions in the region of campinas, sp, brazil (22o54' lat. s). slides of longitudinal-axial sections of 10-12 mm thickness were mounted for the characterization and quantification of histological stages of bud differentiation. the results indicate that the regulatory signals controlling the phases of induction and differentiation of floral buds are distinct, and that there are differences in the response between branches with and without fruits. in the case of 1st crop branches (no fruits present), induction of floral buds took place in january and february, whereas floral bud differentiation was observed during the months of march and april. in 2nd crop branches (fruits present), the induction of floral buds was observed during any month of the year provided that they had already overcome their juvenile state (october-july, in this study). in these 2nd crop branches, the flower bud differentiation was only observed after harvesting all pre-existing fruits of each branch (after may, in this study), which suggests that floral bud differentiation in arabica coffee is influenced by the source-sink relationship, i.e. by the presence of developing fruits within each plagiotropic branch.
XMM-Newton AO-1 observations three SHARC galaxy clusters
Sebastien Majerowicz,Monique Arnaud,Doris M. Neumann
Physics , 2002,
Abstract: We present the follow-up of three medium redshift galaxy clusters from the SHARC survey observed with XMM-Newton. We studied RX J0256.5+0006 which shows two components which are very likely in interaction. The smallest component exhibits a comet-like structure indicating ram pressure stripping as it falls onto the main cluster. The second cluster, RX J2237.0-1516 is an elliptical cluster with a gas temperature of 3.0$\pm$0.5 keV. The third cluster, RX J1200.8-0328 seems to be in a relaxed state because its shape is regular and we do not see obvious temperature gradient. Its mean temperature is 5.1$^{+0.7}_{-0.5}$ keV.
Vacina o para pacientes com artrite reumatoide: uma necessidade premente Vaccination for patients with rheumatoid arthritis: a pressing need
Claiton Viegas Brenol,Gecilmara Salviato Pileggi
Revista Brasileira de Reumatologia , 2013,
Abstract:
A es investigativas e colaborativas no processo de forma o de professores e nas práticas em educa o infantil
Taciana Camera Segat,Claiton José Grabauska
Educa??o : Revista do Centro de Educa??o UFSM , 2004,
Abstract: Este trabalho descreve e analisa um processo colaborativo e reflexivo de forma o de professores para a educa o infantil no município de Santa Maria, Rio Grande do Sul, Brasil. Ao longo de dois anos, em uma dinamica colaborativa e dialética, trabalhamos com professoras em forma o e com professoras em atua o na educa o infantil, tanto em escolas deste nível de ensino, como na UFSM. Tentamos reconstruir o currículo, por meio de uma análise crítica de nossas práticas, considerando professoras em atua o e futuras professoras como profissionais transformadores nas escolas. Palavras-chave: forma o de professores, educa o infantil, práticas educativas
Multivariate Geostatistical Model for Groundwater Constituents in Texas  [PDF]
Faye Anderson
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.513132
Abstract: Although many studies have explored the quality of Texas groundwater, very few have investigated the concurrent distributions of more than one pollutant, which provides insight on the temporal and spatial behavior of constituents within and between aquifers. The purpose of this research is to study the multivariate spatial patterns of seven health-related Texas groundwater constituents, which are calcium (Ca), chloride (Cl), nitrate (NO3), sodium (Na), magnesium (Mg), sulfate (SO4), and potassium (K). Data is extracted from Texas Water Development Board’s database including nine years: 2000 through 2008. A multivariate geostatistical model was developed to examine the interactions between the constituents. The model had seven dependent variables—one for each of the constituents, and five independent variables: altitude, latitude, longitude, major aquifer and water level. Exploratory analyses show that the data has no temporal patterns, but hold spatial patterns as well as intrinsic correlation. The intrinsic correlation allowed for the use of a Kronecker form for the covariance matrix. The model was validated with a split-sample. Estimates of iteratively re-weighted generalized least squares converged after four iterations. Matern covariance function estimates are zero nugget, practical range is 44 miles, 0.8340 variance and kappa was fixed at 2. To show that our assumptions are reasonable and the choice of the model is appropriate, we perform residual validation and universal kriging. Moreover, prediction maps for the seven constituents are estimated from new locations data. The results point to an alarmingly increasing levels of these constituents’ concentrations, which calls for more intensive monitoring and groundwater management.
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