Stock Selection
Mostrando 13-24 de 61 artigos, teses e dissertações.
-
13. Selection to passion fruit (Passiflora edulis) from cladosporiosis (Cladosporium herbarum) resistance / Seleção de maracujazeiro (Passiflora edulis) para resistência à cladosporiose (Cladosporium herbarum)
At the present time, Brazil is one of the greatest producers of yellow passion fruit. Although, the Brazilian productivity is still considered low, due to many phytotecnical problems, such as: nutritional factors, low quality stock plants, inadequate system of conduction and phytossanitary problems. There are few works on genetic improvement aiming the resis
Publicado em: 2008
-
14. Changes in the soil carbon stocks due to agricultural land use in the Southwest Amazonian / Mudança no estoque de carbono do solo devido ao uso agrícola da terra no Sudoeste da Amazônia
Land use changes such as conversion of natural ecosystems to agro ecosystems are shown to cause alterations in the transformations of soil organic matter (SOM), as well they are responsible for crescent emissions of greenhouse gases (GEE), therefore representing around 20% of total GEE emissions. Over the last 30 years, land deforestation has occurred more i
Publicado em: 2008
-
15. Comparing the performance of equity active and passive funds / Comparação do desenvolvimento de fundos de ações ativos e passivos
This dissertation examines the existence of supeior returns in 626 Brazilian equity funds. The idea is to observe if the stock selection strategies were capable to add value in the returns, making it superior from the market one. The estimations compare the retunrs of active and passive investment funds both with and without manager s fees. The methodology u
Publicado em: 2007
-
16. Assets Pricing in the Brazilian Stock market: CAPM and variants application. / PrecificaÃÃo de ativos com risco no mercado acionÃrio brasileiro: aplicaÃÃo do modelo CAPM e variantes.
The assets pricing models assist in the correct evaluation of the investments, as well as, to comprehend the relationship between the assets expected return and its risk. The Capital Asset Pricing Model (CAPM) and the Downside Capital Asset Pricing Model (D-CAPM), in their conditional and static versions, were tested in this study with time and cross-section
Publicado em: 2007
-
17. DESENVOLVIMENTO DE CLONES DE BATATA DE ALTA QUALIDADE DE TUBÉRCULO A PARTIR DE GENITORES RESISTENTES A REQUEIMA / DEVELOPMENT OF POTATO CLONES WITH HIGHT TUBER QUALITY FROM LATE BLIGHT RESISTENT PROGENITORS
Potato (Solanum tuberosum L.) is the most important horticultural crop of the world. Late blight (Phytophthora infestans (Mont.) de Bary) is the most important and devastating disease. There is no cultivar with sufficient level of resistance in Brazil being most part of production costs used for its control. Besides late blight resistance, new cultivars shou
Publicado em: 2007
-
18. Persistência de Performance nos Fundos de Investimento em Ações no Brasil. / Persistence in Brazilian Equity Funds
Esta dissertação avalia a persistência de performance em 112 fundos brasileiros de investimento em ações pelas medidas de rentabilidade, seleção de ativos, market timing e medidas que combinam as duas últimas, com dados diários, em janelas de três meses e um ano para o período de janeiro de 1998 a dezembro de 2005. A metodologia utilizada foi a de
Publicado em: 2006
-
19. Influência da Pesca Seletiva sobre o Comprimento Médio de Maturação em Populações de Dourado (Salminus brasiliensis), Piraputanga (Brycon hilarii) e Curimbatá (Prochilodus lineatus) no Rio Miranda, Mato Grosso do Sul
Fisheries, in the State of Mato Grosso do Sul, are regulated by bag limits and minimum catch size, resulting on the harvest of the larger and older fishes. Such harvests can cause changes in population densities, leading to changes in their reproductive parameters. Therefore, lowering in age or size at first maturity, may mean important stock responses to th
Publicado em: 2006
-
20. Localização de indústrias de reciclagem na cadeia logística reversa do coco verde
This work aims at developing a mathematical model and a methodological approach for the location of recycling industries of green coconut residuals. The coconut hard cover can cause environmental impacts when discharged along the beaches or in land farming. These residuals can be recycled and transformed into fibres, a qualified and profitable use, that can
Publicado em: 2006
-
21. Selection for reproductive traits in white egg stock using independent culling levels
The objective of this study was to report the response to selection for fertility and hatchability in white egg layers strains, based on sire and dam performance, and the effects of inbreeding on these traits. Two selected white egg strains (CC and DD) from Embrapa´s poultry program under multiple trait selection were compared to a control strain (CCc). The
Revista Brasileira de Ciência Avícola. Publicado em: 2005-12
-
22. Ciencias Sociales, Sociología y pobreza en Guatemala
From the perspective of Karl Mannheim's sociology of knowledge, it is possible to understand the state of the art of poverty studies in Guatemala between 1980 and 2004. This work is justified by the lack of investigations looking into the development of Social Sciences in Guatemala and it demonstrates its importance through theoretical and methodological exp
Sociologias. Publicado em: 2005-12
-
23. Genetic trends in the performance and reproductive traits of pigs
The selection and evaluation of breeds and purebred lines to be used as the parental stock is an important step for the success of any animal breeding program. In this study, the feed:gain ratio, backfat thickness corrected for 100 kg, age to 100 kg, average daily gain, and age of sow at first farrowing were used to evaluate the genetic trends for direct and
Genetics and Molecular Biology. Publicado em: 2005-03
-
24. Otimização das perdas em cortes guilhotinados para bobinas de aço
The issues of guillotine cut and in-stock steel rolls selection of metal-mechanic steel industry are approached. An integer linear programming model is introduced, which is divided in two stages: the first one is an optimization model for the lengths of the cutting planes, which is intended to minimize the loss; The second one is the instock steel rolls sele
Publicado em: 2005