Unit Root
Mostrando 37-48 de 149 artigos, teses e dissertações.
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37. Default rate SERASA: a study of series / Índice de inadimplência SERASA: um estudo de séries temporais
With the improvement in income class C in Brazil since 2000 and a growing consumption of goods and services, there was a large increase in the number of people who had access to credit and thus the need for family financial planning. In this framework the evolution of default of individuals is central to the decisions of the credit business and economic deve
Publicado em: 2009
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38. Identificação da microbiota das lesões endo-periodontais por cultura e PCR e sua suscetibilidade ao preparo quimico-mecanico e a medicações intracanais entre sessões de atendimento / Identification of endodontic-periodontal lesions microbiota by culture and PCR and their susceptibility to chemo-mechanical preparation and intracanal dressings between appointments
The aims of this study were to investigate the microbiota of root canals (RC) and periodontal pockets (PP) from teeth with pulp necrosis, periapical lesion, gingival bleeding and periodontal pockets by culture and PCR; to verify the ability of chemo-mechanical preparation (CMP) and intracanal dressings (2% chorhexidine, calcium hydroxide and association of b
Publicado em: 2009
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39. Analysis of the integrated market from the main producers and consumers of coffee / AnÃlise de integraÃÃo de mercado dos principais paÃses produtores e consumidores de cafÃ
This study analyses the space integration among the prices of coffee from the main producing countries (Brazil, Vietnam, Colombia, Mexico and Ethiopia) and consuming ones (United States, German, Japan, Italy and France) of the world. As data were used monthly series of paying prices to producing countries and paying prices from consuming countries in US$ cen
Publicado em: 2009
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40. Arbuscular mycorrhizal fungi communities in soil and sugarcane roots / Comunidades de fungos micorrízicos arbusculares no solo e raízes de cana-de-açúcar
Arbuscular mycorrhizal fungi (AMF, Glomeromycota) form mutualistic symbioses with most land plants. AMF hypha generally grow through the soil and colonize the cortical tissue of the plant roots. However, it is not known whether the most abundant species in the soil, determined based on the morphology of asexual spores are the most abundant inside the roots,
Publicado em: 2009
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41. Estratégias para análise do comportamento de genótipos de soja ao nematoide de cistos (Heterodera glycines) / Strategies for analysis the behavior of soybean genotypes to the cyst nematode (Heterodera glycines)
The objectives of this study were the following ones: to evaluate the stability of the soybean cyst nematode race (H. glycines) from the Nematode Bank of the Soybean Breeding Program by the Federal University of Viçosa (NBSBP-FUV), that is kept under greenhouse conditions; to select the soybean genotypes that were originated by one-single pod descending met
Publicado em: 2009
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42. Distribuição do fósforo no perfil do solo sob sistema plantio direto
The Cerrado, even with soils of low fertility, has been increasing in importance within the Brazilian agricultural scenario, by planning the use and management of land, with the adoption of no-tillage system (NT) and the use of correctives and fertilizers. The application of fertilizers in NT is all doneon the soil surface, which leads to the accumulation of
Publicado em: 2009
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43. Curva de Phillips: uma aplicação para o Brasil no período de meta de inflação
Essa dissertação procura avaliar a dinâmica da inflação no Brasil no período de março de 2000 a dezembro de 2007, através de uma Curva de Phillips híbrida, na especificação que permite além do termo forward looking, representado pela expectativa de inflação, o termo backward looking através da inflação defasada. Inicialmente, procura-se faze
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/10/2008
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44. In vitro study of the pulp chamber temperature rise during light-activated bleaching
This study evaluated in vitro the pulp chamber temperature rise induced by the light-activated dental bleaching technique using different light sources. The root portions of 78 extracted sound human mandibular incisors were sectioned approximately 2 mm below the cementoenamel junction. The root cavities of the crowns were enlarged to facilitate the correct p
Journal of Applied Oral Science. Publicado em: 2008-10
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45. OCCURRENCE AND BIOECOLOGIC ASPECTS OF SOYBEAN ROOT WEEVILS / OCORRÊNCIA E ASPECTOS BIOECOLÓGICOS DOS CURCULIONÍDEOS-DAS-RAÍZES EM SOJA [Glycine max (L). Merryl]
The objective of this study was to evaluate the population fluctuation and the distribution of the soybean root weevils (Coleoptera: Curculionidae), and the population fluctuation was determined in a soybean area in the period December, 2006 to November, 2007, in the Restinga Seca county, RS. Distribution in space and time was evaluated in a soybean experime
Publicado em: 2008
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46. Reação de cultivares e acessos de melancia ao parasitismo de Rotylenchulus reniformis e Meloidogyne javanica / Reaction of watermelon cultivars and accessions to the parasitism of Rotylenchulus reniformis and Meloidogyne javanica
The objective of this work was to evaluate the reaction of watermelon cultivars and accessions to the parasitism of Rotylenchulus reniformis and Meloidogyne javanica, in two experiments carried out at a greenhouse of the Departmento de Ciências Vegetais of the Universidade Federal Rural do Semi-Árido (UFERSA), in a completely randomized design with ninetee
Publicado em: 2008
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47. Dinâmica econômica das flutuações na produção de cana-de-açúcar / Economic dynamics from fluctuations in the Brazilian sugar cane production
Since the mid 70s, the Brazilian sugar and ethanol markets have passed through noteworthy changes, leading the country back to the position of number one sugar cane producer in the world. The objective of this thesis is to evaluate the whole of shocks in supply (measured by area and yield unexpected variations), in demand (measured by domestic income and exp
Publicado em: 2008
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48. The determinants of sugar and alcohol supply in Paranà State (1981 to 2006): an analysis of cointegration / Determinantes das ofertas de aÃÃcar e de Ãlcool paranaenses (1981 a 2006): uma anÃlise de co-integraÃÃo
The beginning of 90s is marked by a new dynamic of Brazilian sugar cane agribusiness. The disconnection of the State apparatus, which was responsible for the activities management at that time, forced the sector to an adjustment in a free market context that, since then, has been experiencing significant advances, both in internal and external markets. The i
Publicado em: 2008