Strategies With Derivatives
Mostrando 13-24 de 48 artigos, teses e dissertações.
-
13. Estudo de alguns metodos determinsticos de otimização irrestrita / Study of some deterministic methods for unconstrained optimization
In this work some classical methods of linear search for unconstrained optimization are studied. The main mathematical formulations for the optimization problem are presented. Two strategies, linear search and trust region, for the algorithm to move from one iteration to another are discussed. Furthermore, the main considerations about the choice of step len
Publicado em: 2010
-
14. A espiritualidade no aconselhamento de apoio às pessoas que desejam parar de fumar
This research calls on Practical Theology, Pastoral Counseling and Spirituality to give attention to Smoking Cessation since tobacco has become the greatest isolated cause of precocious avoidable deaths, a pandemic with an estimated five (5) million deaths a year in the world and two hundred (200) thousand in Brazil. It defines possible elements of approxima
Publicado em: 2010
-
15. Avaliação da forma de fornecimento da dieta e do processamento da palma forrageira (Opuntia fícus-indica Mill) para vacas em lactação
The aim of the present study was to assess the feeding strategy effect and the spineless cactus processing on intake and digestibility of different nutrients, milk production and composition, urea concentration in plasma and milk, and microbial protein production in lactating Holstein cows. Eight cows with a mean live weight of 453 75.8 kg, production of 14
Publicado em: 2009
-
16. Imobilização da enzima β-galactosidase de Kluyveromyces fragilis em agarose e quitosana utilizando diferentes protocolos de ativação
The objective of this work was stabilize and immobilize β-galactosidase from activated agarose and chitosan supports. Initially, it was evaluated the buffer type, ionic strength and bivalent ions Mn2+ and Mg2+ on the hydrolytic activity of the enzyme using as substrates lactose and o-NPG (o-nitrophenyl galactopyranoside). Then the enzyme was covalently
Publicado em: 2009
-
17. Imobilização e estabilização de D-Hidantoinase para a produção de N-Carbamoil-D-Fenilglicina
Immobilization and stabilization of enzymes increases their potential for use in industrial scale. D-hydantoinases (dihidropirimidina amidrohidrolase EC 3.5.2.2) catalyze the hydrolysis of D-hydantoins, generating the corresponding Ncarbamoil- D-amino acid and are used in the production of D-amino acids, including Dphenylglycine and D-p-hydroxyphenylglycine.
Publicado em: 2008
-
18. Adjuvant requirement for successful immunization with recombinant derivatives of Plasmodium vivax merozoite surface protein-1 delivered via the intranasal route
Recently, we generated two bacterial recombinant proteins expressing 89 amino acids of the C-terminal domain of the Plasmodium vivax merozoite surface protein-1 and the hexa-histidine tag (His6MSP1(19)). One of these recombinant proteins contained also the amino acid sequence of the universal pan allelic T-cell epitope (His6MSP1(19)-PADRE). In the present st
Memórias do Instituto Oswaldo Cruz. Publicado em: 10/05/2007
-
19. A aplicação do IAS 39 (International Accouting Standard) em uma empresa não financeira: controles internos e implicações na contabilização de operações com derivativos, um estudo de caso
The derivatives are instruments used for companies management risks of loss related to exposition of price variation, exchange variation, interest and credit, which generate from operational activities. The complexity accounting treatment of these instruments generate difficult related to internal control and request an structure which the companies have to
Publicado em: 2007
-
20. Utilization of cassava starch for the preparation of new termoplastic materials / Utilização de amido de mandioca na preparação de novos materiais termoplásticos
In this work it was studied the development of thermoplastic starches (TPS) prepared from raw cassava root and its derivatives, starch and bagasse (residue). The TPS were prepared by melt-processing employing glycerol as plasticizer in distinct proportions. It was searched for alternatives that could improve both, the mechanical performance and resistance to
Publicado em: 2007
-
21. PERSPECTIVAS DA INSERÇÃO DOS PRODUTORES RURAIS DA REGIÃO CENTRAL DO ESTADO DO RIO GRANDE SUL NO MERCADO REGIONAL DE ALIMENTOS PERECÍVEIS: UM ESTUDO A PARTIR DAS ESTRATÉGIAS DE SUPRIMENTO DAS PRINCIPAIS ORGANIZAÇÕES DE VAREJO DA REGIÃO / PERSPECTIVES OF INSERTING AGRICULTURAL PRODUCERS FROM CENTRAL REGION OF RIO GRANDE DO SUL IN THE REGIONAL PERISHABLE FOOD MARKET: A STUDY FROM THE SUPPLY CHAIN MANAGEMENT OF THE MAIN RETAIL ORGANIZATIONS IN THE REGION
The present work had as main objective the identification of the composition and supply chain management of horticulture products, meat and derivatives, milk and derivatives in the central region of Rio Grande do Sul. Specifically, it characterized the supply chain of the products in the retail networks of the region, it identified the strategies of the reta
Publicado em: 2007
-
22. Essays in Corporate Risk Management
This research investigates the factors that lead Latin American non-financial firms to manage risks using derivatives. The main focus is on currency risk management. With this purpose, this thesis is divided into an introduction and two main chapters, which have been written as stand-alone papers. The first paper describes the results of a survey on derivati
Publicado em: 18/12/2006
-
23. TRÊS ENSAIOS SOBRE A METODOLOGIA DE APREÇAMENTO DE ATIVOS UTILIZANDO OPÇÕES REAIS / THREE ESSAYS ON ASSET PRICING APPLYING REAL OPTIONS METHODOLOGY
The dissertation presents three economic essays examining situations where the real options approach can be useful in the definition of regulatory policies, investment strategies and pricing of sovereign risk. The first essay considers the new regulation oriented to interconnection costs of telecommunications networks and proposes adjustments in calculating
Publicado em: 2006
-
24. Stabilization of penicillin G acylase by immobilization on glutaraldehyde-activated chitosan
The objective of this work was to study enzyme immobilization on chitosan activated with glutaraldehyde, aiming to produce a cheap biocatalyst. Two different immobilization strategies were studied: one-point and multipoint covalent attachment to the solid matrix. The multipoint covalent attachment derivative had an 82% immobilization yield. It was 4.9-fold m
Brazilian Journal of Chemical Engineering. Publicado em: 2005-12