Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 139 )

2018 ( 312 )

2017 ( 332 )

2016 ( 353 )

Custom range...

Search Results: 1 - 10 of 179737 matches for " Manoel de Souza;Deuner "
All listed articles are free for downloading (OA Articles)
Page 1 /179737
Display every page Item
Viabilidade e atividade antioxidante de sementes de genótipos de feij?o-miúdo submetidos ao estresse salino
Deuner, Cristiane;Maia, Manoel de Souza;Deuner, Sidnei;Almeida, Andréia da Silva;Meneghello, Géri Eduardo;
Revista Brasileira de Sementes , 2011, DOI: 10.1590/S0101-31222011000400013
Abstract: this study aimed to evaluate the effect of different salt concentrations on the germination, initial biomass and oxidative stress of four cowpea genotypes, commonly grown in the s?o josé do norte region, rs. the seeds of the genotypes amendoim, mosqueado, baio and preto were planted in rolls of "germitest" paper, soaked in a solution of sodium chloride at concentrations of zero, 50, 100, 150 and 200 mm and placed to germinate at a constant temperature of 25 oc. variables studied were: germination, first count, length and dry mass of the shoots and roots of seedlings, lipid peroxidation and the specific activity of superoxide dismutase, ascorbate peroxidase and catalase. increasing salt concentration adversely affected seed germination and also the first count of the four cowpea genotypes for the 100 mm salt treatment. joint analysis of the regression curves for the growth parameters showed the same tendency for the four genotypes, with a significant growth reduction as salt stress increased. stress effects were also evident from increased lipid peroxidation in the200 mm salt treatment, followed by reduced enzyme antioxidant activity, since in the intermediate salt concentrations, the antioxidant enzymes efficiently eliminated reactive oxygen species (ros), preventing oxidative stress. these results indicate that, at intermediate doses of salt, there was good initial development of the four cowpea genotypes and the best response was observed in the amendoim genotype.
Reprodu??o de peixes (Osteichthyes) em afluentes do reservatório de Volta Grande, Rio Grande, Sudeste do Brasil
Braga, Francisco Manoel de Souza;
Iheringia. Série Zoologia , 2001, DOI: 10.1590/S0073-47212001000200009
Abstract: the most abundant species caught in the tributaries of the volta grande dam, buriti, divisa and água comprida streams were plagioscion squamosissimus (heckel, 1840), pimelodus maculatus lacépède 1803, myleus tiete (eigenmann & norris, 1900), astyanax bimaculatus (linnaeus, 1758) and a. fasciatus (cuvier, 1819). plagioscion squamosissimus and pimelodus maculatus do not have reproduction activity in the area, they just use the creeks to food and growth. myleus tiete and astyanax bimaculatus use the area to reproduction whereas a. fasciatus uses it to reproduction, food and growth.
Estudo da diversidade de Sardinella brasiliensis (Steindachner, 1879), na área entre Macaé (22o23'S) e Ilha de Santa Catarina (27o35'S): 1. Crescimento de dimens?es corporais
Braga, Francisco Manoel de Souza;
Revista Brasileira de Zoologia , 1987, DOI: 10.1590/S0101-81751987000300006
Abstract: the growth of body proportions of sardinella brasiliensis was not homogeneous in the study area, between macaé (rj) and santa catarina island (sc); the growth rates (k) of the von bertalanffy growth curve were greater than growth rates for another áreas. in this area the biomass estimates for pelagic fish is poor, and near cabo frio occurs an upwelling zone. these facts permit the sardines to attain large lengths in this area. between rio de janeiro and florianópolis the growth rates were lower than in the northern part and paranaguá bay. on the other hand the biomass estimates for pelagic fish in rio de janeiro-florianópolis region was very high, and in this zone the population density is high and the growth rates are small. paranaguá bay is a particular region because of its geographical and oceanographic conditons; this is a shelter region with different features and the sardines living there attain small length. in this area the growth rates are intermediary among growth rates for fishes from macaé-cabo frio and rio de janeiro-florianópolis regions. therefore, the growth rates for sardines in southeast brazilian proves to be dependent of the population density, food and oceanographic conditions.
Reprodu o de peixes (Osteichthyes) em afluentes do reservatório de Volta Grande, Rio Grande, Sudeste do Brasil
Braga Francisco Manoel de Souza
Iheringia. Série Zoologia , 2001,
Abstract: The most abundant species caught in the tributaries of the Volta Grande dam, Buriti, Divisa and água Comprida streams were Plagioscion squamosissimus (Heckel, 1840), Pimelodus maculatus Lacépède 1803, Myleus tiete (Eigenmann & Norris, 1900), Astyanax bimaculatus (Linnaeus, 1758) and A. fasciatus (Cuvier, 1819). Plagioscion squamosissimus and Pimelodus maculatus do not have reproduction activity in the area, they just use the creeks to food and growth. Myleus tiete and Astyanax bimaculatus use the area to reproduction whereas A. fasciatus uses it to reproduction, food and growth.
Aspectos da reprodu o no gênero Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae), na microbacia do Ribeir o Grande, serra da Mantiqueira, sudeste do Brasil = Reproduction aspects of the genus Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae) in the Ribeir o Grande system, serra da Mantiqueira, southeastern Brazil
Francisco Manoel de Souza Braga
Acta Scientiarum : Biological Sciences , 2006,
Abstract: Neste trabalho s o descritos aspectos da biologia da reprodu o em Characidium lauroi e C. alipioi. A matura o das g nadas é dividida em quatro estádios e s o descritos no ciclo anual. Em Characidium lauroi, existe um maior período reprodutivo na primavera e, em C. alipioi o maior período reprodutivo é no ver o. O tamanho da primeira matura o gonadal foi ao redor de 4,2 cm de comprimento total para machos e de 5,1 cm para fêmeas de Characidium lauroi, para machos de C. alipioi, foi ao redor de 6,2 cm de comprimento total e, para fêmeas, foi de 5,8 cm. Os valores da rela o gonadossomática indicam o estádio de maturidade e foram determinados para cada espécie e sexo. Os altos valores vistos em outubro para machos e fêmeas de Characidium lauroi marcam os picos de matura o em ambos os sexos, e os picos coincidem com o período reprodutivo. Para Characidium alipioi, os picos foram em fevereiro e também coincidem com o período reprodutivo. Aspects of the reproductive biology of Characidium lauroi and C. alipioi were described. Maturation of the gonads was divided into four stages, and the distribution of the stages in an annual cycle was reported. The Characidium lauroi has a higher spawning period in the spring, and the C. alipioi, in the summer. The size at sexualmaturity of the Characidium lauroi was about 4.2 cm total length for males and 5.1 cm for females; as for the C. alipioi, males were about 6.2 cm total length and females were about 5.8 cm. The gonadosomatic index values indicated the stage of maturity and were determined for each species and sex. The high values observed in October for Characidium lauroi males and females mark the maturation peaks in both sexes, and the peaks coincided with the spawning period. As for C. alipioi, the peaks were in February and also coincided with the spawning period.
Manoel Fernandes de Souza Neto
Revista Tamoios , 2005,
Abstract: Palestra do Professor Manoel Fernandes de Sousa Neto (UFC) no auditório da FFP/UERJ S o Gon alo
Sensibilidade do método de obten??o das células bacterianas e da técnica de PCR para detec??o de Curtobacterium flaccumfaciens pv. flaccumfaciens em sementes de feij?o
Deuner, Carolina Cardoso;Souza, Ricardo Magela de;Zacaroni, Ana Beatriz;Figueira, Antonia dos Reis;Camera, Juliane Nicolodi;
Summa Phytopathologica , 2012, DOI: 10.1590/S0100-54052012000100008
Abstract: currently, there is a need to develop sensitive methods, inexpensive, reproducible and rapid detection of phytobacteria seeds. the objective of this study was to optimize a method for obtaining bacterial cells and the pcr technique to detect curtobacterium flaccumfaciens pv. flaccumfaciens (cff), in bean seeds using pcr. it was used one pairs of primers cfffor2-rev4, designed from an pcr amplified fragment of the conserved repetitive sequence (rep-pcr). the primer pair cfffor2-rev4 was selected in this study, because demonstrated higher reproducibility and efficacy in the detection of cff strains in bean seeds. four methods were also evaluated in the seed extract preparation for pcr: 1) rough seed extract; 2) millipore membrane filter (0.22mu diameter) concentrated seed extract and subsequently ressuspended in water; 3) centrifuge concentrated seed extract 10.000 xg for 15 minutes for 20 and 80 ml; 4) bio-pcr. among those methods, either bio-pcr or centrifuge concentrated extract, in a total 20 or 80 ml suspension volume, produced a 306bp dna fragment, diagnostic for cff. those two techniques detected the bacterium and presented high sensitivity, detecting up to 1 cff physiological conditioning artificially contaminated seed in a total 999 healthy ones. a total of seventeen commercial bean seed lots were analyzed by the method of concentration of the extract by centrifugation, and twelve detected in the bacterium cff, observed by the presence of bands with 306 bp. therefore, it was possible to optimize a method of obtaining the bacterial cells and pcr for detection of cff in bean seeds, that is sensitive, reproducible and easy to perform, which can be used routinely in laboratories for seed.
Argumentos em Torno de um "Velho" Tema: A Descentraliza??o
Souza, Manoel Tibério Alves de;
Dados , 1997, DOI: 10.1590/S0011-52581997000300004
Abstract: the article is concerned with the reform of the brazilian state in the 1990s. its main objective is to analyze the principles guiding these reforms, with a focus on the principle of decentralization. it undertakes a comparative analysis of agenda-setting, based on conservative and progressive theses. innovative points and their weaknesses, limitations, and potentialities are considered in analytical terms. it is concluded that the decisive powers should view this movement, which is in favor of decentralization, as a valuable act for public institutions, that is, as an opportunity for consolidating citizenship
Estoques de carbono organico e de nitrogênio, pH e densidade de um Latossolo após três aplica??es de lodos de esgoto
Boeira, Rita Carla;Souza, Manoel Dornelas de;
Revista Brasileira de Ciência do Solo , 2007, DOI: 10.1590/S0100-06832007000300018
Abstract: the high organic matter content in sewage sludge is one of the reasons for its utilization as soil amendment. this study aimed to evaluate the effect of consecutive sewage sludge applications on the amounts of carbon, total and mineral nitrogen, ph, and bulk density in a latossol. two soil layers (0-0,1 and 0,2-0,4 m) were evaluated after three corn cultivations in jaguariúna (s?o paulo state, brazil), between 1999 and 2001. the treatments consisted of three consecutive applications of two sewage sludge types, applied at five rates each. the increasing rates of urban sludge from the franca sewage treatment plant (total applications of 0; 10,284; 20,568; 41,136, and 82,272 kg ha-1) caused significant accumulations of carbon and nitrogen in the top soil layer. the treatments with doses of industrial and urban sludge from the barueri sewage treatment plant (total applications of 0; 17,405; 34,810; 69,620, and 139,240 kg ha-1) did not significantly affect carbon accumulation in the soil, although in these treatments c additions were 14 % higher than in the other sludge treatment. a significant increase in nitrogen accumulation was observed. bulk density decreased significantly in the upper layer in response to the increasing application rates of the two sludge types. soil acidification was observed in both soil layers, which made liming necessary after the second and after the third growing seasons. leaching of mineral-n to the deeper soil layers was observed.
Enfrentamento à violência contra crian?as e adolescentes: Projeto Escola que Protege
Francischini, Rosangela;Souza Neto, Manoel Onofre de;
Revista do Departamento de Psicologia. UFF , 2007, DOI: 10.1590/S0104-80232007000100018
Abstract: the child and adolescent statute specifies that every child has the right to be protected against actions that may hamper her development. the transgression of this right affects a significant portion of children, which have their quotidian permeated by various forms of violence. with the purpose of preparing professionals in education to work in defending the rights of children and adolescents that are violence victims, the secad/mec implemented the project escola que protege (school that protects), the main focus of this presentation. it is important to consider that the definition of an efficient policy that confronts violence involves the work of various strategic social actors, among them, the school community.
Page 1 /179737
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.