Equality of immanantal decomposable tensors, II

We state a necessary and sufficient condition for equality of nonzero decomposable symmetrized tensors when the symmetrizer is associated to an irreducible character of the symmetric group of degree m.info:eu-repo/semantics/publishedVersio

Avaliacao de cultivares de milho: efeito da adubacao de plantio e da adubacao nitrogenada em cobertura.

Foi conduzido no Centro Nacional de Pesquisa de Milho e Sorgo, em Sete Lagoas, MG, um experimento de competicao de cultivares de milho, no qual estudou o comportamento da cultivar CMS 201 X, selecionada para cerrado, juntamente com as cultivares comerciais Ag 401 e C 111, em tres doses de adubacao no plantio: 250 kg/ha, 500 kg/ha e 750 kg/ha da formulacao basica 4-14-8 e tres niveis de adubacao nitrogenada: 200 kg/ha, 400 kg/ha e 600 kg/ha de sulfato de amonio em cobertura. Esse experimento foi conduzido nos anos agricolas de 1982/83 e 1983/84, utilizando um delineamento experimental de blocos casualizados, com parcelas subdivididas, em tres repeticoes. As adubacoes de plantio constituiram as parcelas e as interacoes de cultivar e adubacao de cobertura, as subparcelas. Os resultados obtidos demonstraram que houve efeito do ano agricola sobre a produtividade das cultivares, evidenciando que a distribuicao das chuvas influenciou o rendimento de graos no solo de cerrado. Com distribuicao regular de chuvas, a cultivar Ag 401 mostrou melhor comportamento que a CMS 201 X. Em 1982/1983, a resposta ao N em cobertura foi linear e ocorreu somente no ano de boa distribuicao de chuvas. Somente a cultivar C. 111 respondeu a adubacao de plantio, atraves de efeito quadratico da regressao que alcancou uma producao otima economica de 5.905 kg/ha de graos, com a utilizacao de NPK no plantio

Implementação do algoritmo em Matlab® do método de diagonalização filtrada para análises de sinais de ressonância magnética nuclear.

No título, em Matlab® o símbolo é sobrescrito

Reproductive biology of Macrobrachium surinamicum (Decapoda: Palaemonidae) in the Amazon River mouth.

Macrobrachium surinamicum is an indigenous prawn distributed from the lower Amazon and Tocantins river basins to Venezuela in the Orinoco Delta region. It is common bycatch fauna of Macrobrachium amazonicumartisan fishing in the states of Pará and Amapá. The aim of this study was to investigate aspects on reproductive biology (reproductive period, size of sexual maturity population, fecundity, reproductive output and recruitment) of M. surinamicum from four important areas to artisanal prawn fishing located at the Amazon River mouth (Amapá and Pará). The specimens were captured using 20 handcrafted traps called ?matapi?. A number of 675 prawns were captured, 258 males, 409 females and eight juveniles, resulting in 1:1.6 (Male: Female) sex ratio. The reproductive peak period occurred from March to July, coinciding with the higher rainfall period. The juvenile prawn occurred only in May and July. Total length of egg-bearing females ranged from 12.12 to 38.30 mm, with mean female length at first maturity (L50) of 23.7 mm. Fecundity increased with prawn size and varied between 174 and 1780 eggs per female. Mean egg volume increased gradually from 0.031 (Stage I) to 0.060 mm³ (Stage III) during embryogenesis. Macrobrachium surinamicumdepends on brackish water to complete the larval development. Irrespective of female size, reproductive output of M. surinamicumvaried between 4.3 % and 35.5 % of their body weight for egg production. The knowledge of the reproductive biology reported in the present study is an important tool to define strategies to preserve M. surinamicumin Amazon River mouth