One-loop superstring amplitude from integrals on pure spinors space

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

Efeito de tipos de leite sobre oídio em abóbora plantadas a campo

O trabalho foi realizado a campo para avaliar a eficiência de diversos tipos de leite de vaca sobre o oídio da abóbora cultivar Piramoita, causado por Sphaerotheca fuliginea. Utilizou-se o delineamento experimental de blocos ao acaso com seis tratamentos, cinco repetições e cinco plantas por parcela. Os tratamentos foram: leite cru, leite pasteurizado do tipo C, leite integral do tipo longa vida, leite pasteurizado tipo C + Yakult®, leite integral do tipo longa vida + Yakult® e água como controle. Os melhores resultados no controle da doença foram obtidos com leite de vaca cru, com leite do tipo C e leite do tipo C + Yakult®. Concluiu-se que leite é uma alternativa viável no controle do oídio, mesmo após o início da infecção, no campo. Sua utilização na forma de leite cru mais eficiente e na forma de longa vida o menos eficiente.

SYNAPTONEMAL COMPLEX-ANALYSIS OF THE SEX BIVALENT IN GOATS

Synaptonemal complex (SC) analysis of XY pairing in the goat (Capra hircus; 2n = 60) was investigated by electron microscopy for the first time in this species. Synapsis of the X and Y chromosomes begins during the mid-late zygotene stage as the autosomes complete their pairing. Only a small portion of the total length of the Y is paired with the X chromosome at this time. By the early pachytene, almost 90% of the Y is paired with the X. All the observed stages of the sex bivalent pairing showed the structural difference between the differential and pairing regions. In the pairing region, a synaptonemal complex is formed, while in the differential region the chromosome axes remain free.

Avaliação do nível de multicaminho no posicionamento relativo GPS e sua atenuação através da análise de multiresolução

The multipath effect affects the differential and relative positioning, even that one involving short baselines. So it is necessary to detect this effect, check the caused error level, and mainly, its removal. This paper aims at analysing and comparing some useful components in the detection of this effect. These components are the Signal to Noise Ratio (SNR), the values of MP1 and MP2 obtained from the TEQC software that indicates the multipath level in the carriers L1 and L2, the multipath repeatability in consecutive days and the elevation angle and the azimuth of the satellites. For this purpose, an experiment is carried out, comparing such components in the presence and the absence of reflector objects that cause the multipath. Not only there is clear multipath repeatability in the residuals, but it also appears in the measures SNR, MP1 and MP2, reaching up 99% of correlation. For reduction, at least, of the high frequency multipath effect, the Multi-Resolution Analysis using wavelets is applied in the double differences (DD) measures. Some statistical tests were accomplished, which indicate results improvement, and mainly, larger reliability in the solution of the ambiguities, reaching up 49% of improvement concerning the Ratio test without applying the proposed method.

A simplified method for determining the high frequency induction motor equivalent electrical circuit parameters to be used in EMI effect

The aim of this paper is to present a simple method for determining the high frequency parameters of a three-phase induction motor to be used in studies involving variable speed drives with PWM three-phase inverters, in which it is necessary to check the effects caused to the motor by the electromagnetic interference, (EMI) in the differential mode, as well as in the common mode. The motor parameters determination is generally performed in adequate laboratories using accurate instruments, such as very expensive RLC bridges. The method proposed here consists in the identification of the motor equivalent electrical circuit parameters in rated frequency and in high frequency through characteristic tests in the laboratory, together with the use of characteristic equations and curves, shown in the references to be mentioned for determining the motor high frequency parasite capacitances and also through system simulations using dedicated software, like Pspice, determining the characteristic waveforms involved in the differential and common mode phenomena, comparing and validating the procedure through published papers [01].

Variabilidade espacial do estado nutricional do cafeeiro canephora visando o manejo localizado

Mapping the plant nutritional condition allows viewing different regions in a cropping area, providing the producers with different criteria to use foliar and soil fertilization. The aim of this study was to evaluate the spatial variability of the nutritional condition of canephora coffee (Coffea canephora Pierre ex Froehner) regarding the site specific management of foliar and soil fertilization. In a one hectare area 60 georeferenced points were sampled at irregular intervals. There were five plants in each sampled point; two pairs of leaves were removed from the lateral branches (3 rd and 4 th pairs from extremity to the basis) in the cardinal points of each plant, counting up 40 leaves per point. The foliar samples were chemically analyzed for the following nutrients: N, P, K, Ca, Mg, S, B, Cu and Zn. The same pattern of spatial dependence was presented with adjustment for K and B. Except for N and P, which presented random distribution, the other nutrients presented mild to severe spatial dependence justifying the geostatistical data analysis for making maps for differential and located, foliar and soil fertilizer application in coffee crop.

Teatro Ventoforte de 1985 a 1995: a formação de um artista e arte-educador

Pós-graduação em Artes - IA

Análise, desenvolvimento e implantação de software para monitorização, controle e gerenciamento dos processos na condução de estudos clínicos em cancerologia

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

Os direitos personalíssimos, e as obrigações, no poder familiar

Pós-graduação em Direito - FCHS

Aton- sistema automatizado de aquisição e tratamento de dados para radiometria solar

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Coeficientes de perda de carga em válvulas e acessórios no escoamento de fluídos não-newtonianos puramente viscosos e viscoelásticos

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

Ensino de biologia e o desenvolvimento de habilidades cognitivas por meio de atividades práticas e contextualizadas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Determinação de parâmetros reológicos de concretos através do ensaio de abatimento de tronco de cone modificado: estudo de caso

Pós-graduação em Engenharia Mecânica - FEIS

Leveduras de cerveja e cana-de-açúcar (Saccharomyces cerevisiae), autolisada e íntegra, na dieta de cães

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Influência da polpa cítrica, do óleo e de fungos filamentosos na atratividade de iscas tóxicas à Atta sexdens rubropilosa (Hymenoptera,Formicidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)