Unitary expansion of the time evolution operator

We propose an expansion of the unitary evolution operator, associated to a given Schr\"odinger equation, in terms of a finite product of explicit unitary operators. In this manner, this unitary expansion can be truncated at the desired level of approximation, as shown in the given examples.Comment: 6 pages, 7 figures. Updated version, minor final change

Isolation and characterization of a myo-inositol-1-phosphate synthase gene from yellow passion fruit (Passiflora edulis f. flavicarpa) expressed during seed development and environmental stress.

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Will increasing temperature and CO2 affect pumpkin early development in Brazilian Semi-Arid?

With rising levels of CO2 in atmosphere, understanding possible impacts on development and growth of plants becomes increasingly important. The aim of this study was to evaluate interaction between different temperatures and CO2 levels in germination and early development of seedlings of different species of pumpkin. Seeds of Cucurbita pepo cultivars ?Caserta? and ?Redonda?, and Cucurbita maxima ?Coroa? were sown in trays of 36 cells and held in growth chambers with different combinations of levels of CO2 and day/night temperatures. The experimental design was completely randomized in a 2 X 3 factorial scheme with two levels of CO2 concentration (360 and 550ppm) and three day/night temperatures (26/20, 29/26 and 32/26°C), with four replicates of 18 seedlings for each treatment. CO2 levels used caused different effects among cultivars for most variables, but a significant change in physiological behavior of seedlings with increasing CO2 concentration was not observed. Increase in temperature led to physiological changes in both seeds and seedlings. The predicted conditions of increasing concentration of atmospheric CO2 and temperature are damaging to production of pumpkin seedling

Variação anual da população mista de Meloidogyne incognita raça 1 e M. javanica em cultivos da batata 'Binje' no campo.

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First transgenic geminivirus-resistant plant in the field.

Bean golden mosaic virus (BGMV) belongs to the genus Begomovirus, whose genome is composed of two single-stranded DNA molecules, designated DNA-A and DNA-B, both of which are essential for infectivity. BGMV is transmitted by the whitefly Bemisia tabaci (Gennadius) in a persistent, circulative manner, causing golden mosaic in common bean. This disease is characterized by yellow-green mosaic of leaves, stunted growth and distorted pods, which may vary among genotypes

Expression of human bone morphogenetic protein (BMP-2 and BMP-4) genes in transgenic bovine fibroblasts.

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Recomendações técnicas para obtenção de sementes híbridas de coqueiro.

Condições ecólogicas requeridas, plantas progenitoras, anões, anão amarelo, anão vermelho, anão verde, gigantes, biologia floral, métodos, coleta e preparo de polen, coleta, secagem e tamisagem, condicionamento, emasculação das plantas, polinização, controles.bitstream/item/43932/1/CPATC-DOCUMENTOS-4-RECOMENDACOES-TECNICAS-PARA-OBTENCAO-DE-SEMENTES-HIBRIDAS-DE-COQUEIRO-FL-13122.pd