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Search Results: 1 - 10 of 240630 matches for " José Duarte de; Santos "
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Classifica??o de genótipos de amendoim baseada nos descritores agromorfológicos e isoenzimáticos
Santos, Roseane Cavalcanti dos;Moreira, José de Alencar Nunes;Farias, Ricardo Henrique de;Duarte, Jair Moura;
Ciência Rural , 2000, DOI: 10.1590/S0103-84782000000100009
Abstract: the agromorphological and isoenzimatic descriptors were used to classify peanut infraespecific genotypes by principal components analysis. twenty three descriptors were utilized, among them, eleven were morphologic, nine agronomic and three molecular ones. based on the results of principal components analysis, it was verified that the main morphological descriptors were botany type, pigmentation of main stem, inflorescence pattern, pod maturation, leaflets colour, growth habit, seed colour and hairiness; the main agronomic descriptors were blomming, 100 seeds weigh, number of pods/plant, ?pops? and seeds yield. as to combined morphological and agronomic descriptors it was verified that ?pops?, number of seeds/pod, number of pods/plant, seeds yield, pod size and botany type gave greatest contribution. in relation to molecular analysis, no relation was verified between band patterns and botany types of the genotypes, however, it was reported that the similarity based on the agromorphological descriptors of the valencia genotypes should correspond to that one found on pattern of the molecular systems.
Excavatory Cycle of Leposternon microcephalum Wagler, 1824 (Reptilia, Amphisbaenia)
Barros-Filho,José Duarte de; Hohl,Leandro dos Santos Lima; Rocha-Barbosa,Oscar;
International Journal of Morphology , 2008, DOI: 10.4067/S0717-95022008000200027
Abstract: the excavatory movements of the spade-snouted amphisbaenid leposternon microcephalum (reptilia, squamata) was studied with the aid of videofluorscopy (x-ray) techniques. this allows the observation of skull and column movements along tunneling, and a more detailed motion observation, being so a novel approach for amphisbaenian excavatory rescarches. a single specimen of leposternon microcephalum was kept in a glass terrarium filled with semoline, and filmed with a scopy (x-ray) machine. fixed anatomical marks on the head of the specimen were put in drawings from the framed recordings. selected sequences of the recordings were fragmented in isolated frames for motion observation. the analysis of the recordings revealed a repetitive pattern of excavatory cycles, with retreating and downward bending of the head before its upstroke to compact the substrate tunnel roof. follows a dropping of the head, which lays over the substrate giving support for the next retreating and downward head bending. this is an essential step that was neglected in earlier cycle descriptions. the initial downward head bending was not previously properly described for spade-snouted amphisbaenians. the excavatory movements of spade-snouted amphisbaenians are usually treated as a two-stepped cycle, but the evidence that this excavatory cycle has three steps is given here.
Variabilidade isoenzimática entre linhagens de amendoim resistentes à seca
Santos, Roseane Cavalcanti dos;Moreira, José de Alencar Nunes;Duarte, Jair Moura;
Ciência Rural , 2000, DOI: 10.1590/S0103-84782000000200012
Abstract: the use of electrophoretic techniques to separate multiple molecular forms of enzymes has been used in the biological science, where differences in isozymes among tissues can be used efficiently on cultivar differentiation during any life cycle phase. in this paper, the variability of six drought resistant peanut lines was studied by isozymes analysis aiming to verify the possible relations between enzymatic descriptors and drought resistance character. leaflets were analyzed by horizontal poliacrylamide gel electrophoresis technique and buffer continuos systems for the following systems: acid phosphatase (acp), malate dehydrogenase (mdh), leucine aminopeptidase (lap), peroxidase (pox) and esterase (est). the phenotypic characterization of the genotypes allowed four group separations to acp, three to lap, two to mdh, and six to pox and est. the iac tup? cultivar (drought sensitive) was differentiated to the others genotypes, specially as to senegal 55 437 cultivar (drought resistant) by principal components analysis.
Correla??o da fluviometria e de alguns fatores climáticos sobre a produ??o pesqueira de Anchoviella lepidentostole (Fowler, 1911) (Teleostei, Engraulidae), no Rio Ribeira de Iguape, S?o Paulo, Brasil
Giamas, Maria Teresa Duarte;Santos, Luiz Edésio;Vermulm Jr, Harry;Souza, José Nilton de;
Revista Brasileira de Zoologia , 1987, DOI: 10.1590/S0101-81751987000400001
Abstract: this research was undertaken in registro, sp, from january 1979 to december 1982, to verify the relationship between the capture (in kilo-grams) of anchoviella lepidentostole (fowler, 1911) and fluviometric and climatic parameters. the following results were obtained, utilizing the pearson index of linear correlation: a) for capture and fluviometric values, r = -0.84; b) for capture and solar radiation, r = 0.63; c) for capture andpluviometric index, r = -0.83; d) for capture and mean air temperature, r = 0.30.
Excavatory Cycle of Leposternon microcephalum Wagler, 1824 (Reptilia, Amphisbaenia) Ciclo Excavatorio de Leposternon microcephalum Wagler, 1824 (Reptilia, Amphisbaenia)
José Duarte de Barros-Filho,Leandro dos Santos Lima Hohl,Oscar Rocha-Barbosa
International Journal of Morphology , 2008,
Abstract: The excavatory movements of the spade-snouted amphisbaenid Leposternon microcephalum (Reptilia, Squamata) was studied with the aid of videofluorscopy (X-ray) techniques. This allows the observation of skull and column movements along tunneling, and a more detailed motion observation, being so a novel approach for amphisbaenian excavatory rescarches. A single specimen of Leposternon microcephalum was kept in a glass terrarium filled with semoline, and filmed with a scopy (X-ray) machine. Fixed anatomical marks on the head of the specimen were put in drawings from the framed recordings. Selected sequences of the recordings were fragmented in isolated frames for motion observation. The analysis of the recordings revealed a repetitive pattern of excavatory cycles, with retreating and downward bending of the head before its upstroke to compact the substrate tunnel roof. Follows a dropping of the head, which lays over the substrate giving support for the next retreating and downward head bending. This is an essential step that was neglected in earlier cycle descriptions. The initial downward head bending was not previously properly described for spade-snouted amphisbaenians. The excavatory movements of spade-snouted amphisbaenians are usually treated as a two-stepped cycle, but the evidence that this excavatory cycle has three steps is given here. Los movimientos excavatorios de la Amphisbaenia (culebrilla ciega), con hocico en forma de pala, Leposternon microcephalum (Reptilia: Squamata) se estudiaron con la ayuda de técnicas de videofluoroscopía (rayos X). Esto permite la observación de los movimientos del cráneo y columna, a lo largo de túneles, y una propuesta más detallada, siendo un enfoque novedoso para investigaciones de la culebrilla ciega excavadora. Un solo espécimen de Leposternon microcephalum se mantuvo en un terrario de vidrio lleno de semolina, y fue filmado con una máquina de escopía (rayos X). Se fijaron marcas anatómicas en la cabeza de éste y luego fueron dibujadas desde las grabaciones. Las secuencias seleccionadas de las grabaciones fueron fragmentadas en fotogramas aislados de la observación del movimiento. Los análisis de las grabaciones revelaron un patrón repetitivo de ciclos excavatorios, con la retirada y doblamiento hacia abajo de la cabeza, antes de su movimiento hacia arriba para compactar el sustrato del techo del túnel. Sigue una caida de la cabeza, que se pone sobre el apoyo del sustrato para la próxima retirada y doblamiento hacia abajo de la cabeza. Esto es un paso esencial que es descuidado en las descripciones anteriores
Impactos ambientais em bacias hidrográficas : caso da bacia do Rio Paraíba
Lincoln Eloi de Araújo,Maria José dos Santos,Simone Mirtes Duarte,Edinete Maria Oliveira
Tecno-Lógica , 2009,
Abstract: Este artigo retrata a degrada o ambiental que ocorre em regi es de bacias hidrográficas, relacionando alguns impactosambientais e suas características, abordando como equacionar de forma positiva esses impactos, ou seja, como revitalizar as áreasdegradas. Evidencia-se como exemplo a bacia do rio Paraíba, com toda sua peculiaridade climática no tempo e no espa o.Concluindo-se que com medidas de manejo adequadas e a es mitigadoras, a recupera o das áreas impacta das baciashidrográficas ocasionará a melhoria da qualidade da água, no combate e controle da polui o difusa, no melhoramento da flora econsequentemente da fauna, ou seja, uma reabilita o ambiental quase completa, favorecendo o meio ambiente econsequentemente o homem. Abstract This article portrays the environmentaldegradation that occurs in regions of river basins, linking someenvironmental impacts and their characteristics, and consideraddressing these impacts in a positive way, or how reviving thedegraded areas. There is the example of the Paraíba river basin,with all’s peculiar climate in time and space. Concluded that withappropriate management measures and mitigating actions, therecovery of impacted areas of river basins cause the improvementof water quality, combat and control of diffuse pollution, theimprovement of flora and fauna accordingly, and environmental rehabilitation almost complete, benefiting the environment andtherefore the man.
Co-digest?o anaeróbia de substancias surfactantes, óleo e lodo de esgoto
Costa, Maria José Comandante;Sousa, José Tavares de;Leite, Valderi Duarte;Lopes, Wilton da Silva;Santos, Keliana Dantas;
Engenharia Sanitaria e Ambiental , 2007, DOI: 10.1590/S1413-41522007000400010
Abstract: the present work had as objective investigate the viability of treating, through processes anaerobic substances surfactants, mineral oil and sewage sludge. for all the treatments the concentrations of organic matter were analyzed (cod) influent and effluent. the experimental system was monitored for 150 days. the volume and composition of the produced biogas were daily quantificated. removals of filtered cod average were verified from 82% to the 18 days and for raw cod around 76% for the six treatments to the 100 dias.de operation. the methane production observed during the experimental period demonstrated that the different concentrations of present surfactants in the system were not shown toxicant enough to inhibit the methanogenic bacterias.
Comparative cytogenetic analysis between Lonchorhina aurita and Trachops cirrhosus (Chiroptera, Phyllostomidae)
Barros, Helen Maria Duarte do Rêgo;Sotero-Caio, Cibele Gomes de;Santos, Neide;Souza, Maria José de;
Genetics and Molecular Biology , 2009, DOI: 10.1590/S1415-47572009005000095
Abstract: phyllostomidae comprises the most diverse family of neotropical bats, its wide range of morphological features leading to uncertainty regarding phylogenetic relationships. seeing that cytogenetics is one of the fields capable of providing support for currently adopted classifications through the use of several markers, a comparative analysis between two phyllostomidae species was undertaken in the present study, with a view to supplying datasets for the further establishment of phyllostomidae evolutionary relationships. karyotypes of lonchorhina aurita (2n = 32; fn = 60) and trachops cirrhosus (2n = 30; fn = 56) were analyzed by g- and c-banding, silver nitrate staining (ag-nor) and base-specific fluorochromes. chromosomal data obtained for both species are in agreement with those previously described, except for x chromosome morphology in t. cirrhosus, hence indicating chromosomal geographical variation in this species. a comparison of g-banding permitted the identification of homeologies in nearly all the chromosomes. furthermore, c-banding and ag-nor patterns were comparable to what has already been observed in the family. in both species cma3/da/dapi staining revealed an r-banding-like pattern with cma3, whereas dapi showed uniform staining in all the chromosomes. fluorochrome staining patterns for pericentromeric constitutive heterochromatin (ch) regions, as well as for nucleolar organizing regions (nors), indicated heterogeneity regarding these sequences among phyllostomidae species.
Aspectos epidemiológicos da hanseníase: uma abordagem espacial
Duarte-Cunha, M?nica;Souza-Santos, Reinaldo;Matos, Haroldo José de;Oliveira, Maria Leide W. de;
Cadernos de Saúde Pública , 2012, DOI: 10.1590/S0102-311X2012000600013
Abstract: the objective of this study was to identify spatial patterns in the occurrence of leprosy in duque de caxias, a municipality (county) with high endemicity for the disease in the state of rio de janeiro, brazil. the authors selected all new leprosy cases reported to the brazilian national database on diseases of notification (sinan) from 1998 to 2006. the analysis was performed according to three-year periods, followed by spatial analysis according to the local empirical bayesian method and calculation of global (moran) and local (lisa) spatial autocorrelation. the analysis showed marked improvement in the epidemiological situation associated with earlier diagnosis. there was a reduction in the proportion of cases with grade ii leprosy, from 13.6% to 8.6% (p = 0.04), and increased detection of cases with the indeterminate form, from 10.3% to 18% (p = 0.00). spatial analysis identified a cluster in the south-northwest of the municipality, not directly related to the actions or decentralization campaign, proving to be an important tool for identifying critical areas for the endemic and assessing the impact of strategic measures to combat the disease.
Nutrients in the cassava (Manihot esculenta Crantz) leaf meal at three ages of the plant
Wobeto, Carmen;Corrêa, Angelita Duarte;Abreu, Celeste Maria Pato de;Santos, Custódio Donizete dos;Abreu, José Renato de;
Ciência e Tecnologia de Alimentos , 2006, DOI: 10.1590/S0101-20612006000400024
Abstract: the high number of cassava cultivars adapted to many different regions provides a wide variation in the chemical composition of cassava leaves meal (clm). therefore, the contents of some nutrients in clm from five cultivars at three ages of the plant were investigated in order to select the cultivars and ages with superior levels of these nutrients. when the plants were 12 months old, the highest levels of crude protein (cp), b-carotene, iron, magnesium, phosphorus and sulfur were observed. the iac 289-70 cv. showed the highest levels of magnesium, as well as considerable contents of cp, b-carotene, iron, zinc and sulfur, which did not differ statistically from the cultivars showing the highest levels of these nutrients.
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