Avaliação Comparativa da Agressividade de Meloidogyne javanica e M. incognita à Variedade SP 911049 de Cana-de-açúcar

Nematodes cause extensive losses to sugarcane in Brazil and also in other producing regions. Meloidogyne incognita, M. javanica and Pratylenchus zeae are the key species for this culture worldwide. In the present study, the aggressiveness of M. javanica and M. incognita to sugarcane variety SP 911049 was evaluated comparatively,. The following parameters were compared: reproduction factor (RF) of these nematodes, effect of nematodes in the natural incidence of pests, and the influence on the development and technological characteristics of sugarcane. Considering the data of RF, biometrics, natural infestation of pests, mortality of plants, and technological variables, it was concluded that M. javanica was more aggressive to sugarcane, although its rate of multiplication was much smaller than the one of M. incognita.

Fotointerpretacao comparativa de fotografias pancromaticas, imagens de radar e de satelite

Three types of imagery were evaluated for mapping drainage patterns and vegetation in a 100 000 ha area of Sao Paulo State, Brazil. The drainage measurements were drainage density, frequency of channels and texture ratio, studied on circular samples of 10 km2 for panchromatic photography and 100 km2 for radar and satellite images. The vegetation types were forest, pasture, sugar cane and rice, studied on circular samples of 100 km2. Radar images were the most convenient method to study drainage patterns and the land forms of large areas, while Landsat imagery was most efficient for the study of vegetative cover, although panchromatic photographs were the most accurate method.-from Field Crop Abstracts

Análise comparativa de métodos de avaliação da composição corporal em homens sadios e em pacientes com doença pulmonar obstrutiva crônica: antropometria, impedância bioelétrica e absortiometria de raios-X de dupla energia

The aim of this study was to examine the agreement between the results of body fat (BF and BF%), fat-free mass (FFM) and FFM index (FFMI= FFM/height2) as estimated by skinfold anthropometry (ANT), bioelectrical impedance (BIA) and dual-energy X-ray absorptiometry (DXA) in two groups of men (> or = 50 y), one comprising healthy individuals (n=23) and the other, patients with chronic obstructive pulmonary disease (COPD) (n=24). Comparisons between body composition techniques were done by repeated measures ANOVA; the Bland & Altman procedure was used to analyse agreement. RESULTS AND CONCLUSIONS: 1) comparison between healthy and COPD groups showed significant differences between all studied variables; 2) in the healthy group, values for BF, BF%, FFM and FFMI were not significantly different when BIA or ANT was compared to DXA; however, in COPD, values for BF and BF% were significantly higher and for FFM and FFMI significantly lower when BIA was compared to DXA; in contrast, no differences were shown between values for these variables when ANT was compared with DXA; 3) Bland & Altman test, in both groups, showed no agreement between BIA and DXA and between ANT and DXA; it was also shown that body fat was overestimated and fat free mass underestimated by BIA in relation to DXA.

Avaliação comparativa da eficácia de fitoterápicos e produtos químicos carrapaticidas no controle do boophilus microplus (Canestrini, 1887) por meio do biocarrapaticidograma

The aim of this research was to evaluate the efficacy of plant extracts and chemical products for the control of Boophilus microplus. Three commercial products for the control of Boophilus microplus were in vitro evaluated, chemical compounds of cypermethrin + DDVP and organophosphate as recomended by the manufacturer, and also four plant extracts, Azadirachta indica (1%), Cymbopogon densiflorus, Lippia alba and Ipomoea asarifolia at different concentrations. The results showed that the chemical compounds tested had efficacy lower than 95% against the Boophilus microplus samples in the experiment. The extracts of all plants have shown some biological activity in the mortality of ingurgitated females and inhibition of egg crash, however the extract of Azadirachta indica presented efficacy higher than 95% in all tested concentrations, being the best sample tested in this experiment.

Análise comparativa do ambiente de aviários de postura com diferentes sistemas de acondicionamento

Poulty house typology and the materials used (mainly for roofing) are the determining factors for an appropriate thermal condition aiming at production. In this context, the main point of this paper was to identify differences in the internal environment of two poultry houses, using monitoring and afterwards using statistics for comparing the environmental variables. The data analyzed did not show evidence of better thermal comfort for the house which was covered with ceramic roofing tile, because this house did not have ridged vents, making the hot air exit from the house difficult by the chimney effect. The ammonia concentration measured inside both houses was within the comfort limit. The temperature and humidity index of the house covered with ceramic roofing tiles was higher than the house which was covered with cement asbestos roofing tile, even though lower temperature on the tiles' surfaces was verified, showing the positive effects of the use of ridge vents at the housing. Based on the results obtained it is recommended for the Bastos, SP region, that poulty houses should be built with the ridge vent and long eaves beyond the roof of ceramic tiles.

Um filtro gaussiano adaptativo para análise comparativa de imagens de radares e satélites meteorológicos

Meteorological satellite and radar data comparative analysis allows to correlate the precipitation structures observed in both images. Such analysis would make feasible the extension of the range of ground-based meteorological radars. In addition to the different spatial and temporal resolution of these images this comparative analysis presents difficulties due to the effects of rotation and distortion, besides the different formats, projections, and coordinate systems. This work employed an approach based on a Gaussian adaptive filter in order to compare such images. The statistical results obtained from the comparison of the images are matched to those produced by other methods.

Análise comparativa das relações entre ensino e aprendizagem por professores e alunos

In this research we identified and compared the representations of teachers and students on teaching and learning. The objective was to determine which aspects of these representations correspond to subjects and if they differ between students with high and low academic performance. Data collection was organized through a semi-structured interview. The study included twenty teachers and forty students in the 5th year of elementary school municipal public metropolitan region of Campinas. The responses from the interviews were categorized and analyzed by using the Fisher exact test, chi-square and Proportions. The results show that teachers and students present a partial view of the factors involved in teaching and learning. The learning process is understood as an individual and social factor. Teachers and students with high performance positively represent the environment of the classroom, unlike the students with lower academic performance.

Análise comparativa da produtividade de híbridos de mamoneira (Ricinus communis L.) obtidos por meio da hibridação convencional e do método de híbridos crípticos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estimação do diâmetro de furos em processo de furação utilizando sistemas de inteligência artificial: uma análise comparativa entre diferentes técnicas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo estrutural de quinases dependentes de ciclinas por métodos de modelagem molecular comparativa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise morfométrica comparativa e biogeografia dos pequenos Artibeus brasileiros Leach, 1821 (Mammalia, Chiroptera, Phyllostomidae)

Pós-graduação em Biologia Animal - IBILCE

Análise comparativa da expressão protéica em glândulas pós-faríngeas de saúva-limão, Atta sexdens rubropilosa Forel, 1908 (Hymenoptera: Formicidae) submetidas à suplementação lipídica

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Análise comparativa das metodologias de hibridização reversa e sequenciamento direto para a genotipagem do vírus da hepatite C

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

Análise comparativa entre terapia fotodinâmica com ácido 5-aminolevulínico versus crioterapia no tratamento da queratose actínica: estudo prospectivo randonizado

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB