Large Scale Structure and Cosmic Rays revisited

We investigate the possibility that ultra high energy cosmic rays (E > 10^19 eV) are related to the distribution of matter on large scales. The large scale structure (LSS) data stems from the recent IRAS PSCz redshift survey. We present preliminary predictions drawn from an anisotropic distribution of sources which follows the galaxy distribution.Comment: 6 pages, 2 figures, uses World Scientific style. To appear in the proceedings of "Third International Workshop on New Worlds in Astro-Particle Physics", 1-3 Set. 2000, Faro, Portugal and X ENAA, 27-28 Jul. 2000, Lisbon, Portuga

Alternativas eficientes de cruzamentos em gado de leite nos trópicos.

bitstream/item/65246/1/CT-76-Alternativas-eficientes-de-cruzamentos.pd

Esquemas de cruzamentos em gado de leite.

bitstream/item/142951/1/1769.pd

Environmental stratification in the brazilian Cerrado on the yield and fiber quality of cotton genotypes.

Environmental stratification studies are important for the plant breeding, since they allow to adequately plan the experimental network. The objective of this work was to identify similar environments for cotton cultivation in the Brazilian Cerrado regarding yield and fiber quality. Nineteen field studies were carried out in a randomized complete block design with twelve genotypes and four replicates. Agronomic (cotton seed yield and fiber percentage) and technological traits (length, micronaire, fiber strength) were evaluated. These results indicate that there are six environments (PVA3, MON, SHE1, SIN, PPA e TRIN) in which the cotton trials should be installed as a matter of priority owing to the phenotypic response pattern obtained for the evaluated traits. The remaining 13 environments are similar to each other for all traits and can be summarized in strategic locations depending on the ease of installation of the trials.Título em português: Estratificação ambiental no Cerrado brasileiro sobre o rendimento e a qualidade da fibra dos genótipos de algodão

Estimativas da diferença aditiva entre raças e da heterose para mortalidade em bezerras Holandês X Guzerá.

Como parte de um experimento de avaliação de estratégias de cruzamentos, foi estudada a mortalidade até 12 ano de 614 bezerras de 6 grupos de cruzamentos Holandês X Guzerá.Resumo