Unit Root
Mostrando 13-24 de 149 artigos, teses e dissertações.
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13. Clones, substrates and environments for seedlings of rubber tree rootstocks
ABSTRACT The objective of this study was to evaluate the growth of rubber clones GT1, PR255, RRIM600 grown on different substrates and environments for the production of rubber rootstocks. The experiment was conducted at the Universidade Estadual de Mato Grosso do Sul, Cassilândia University Unit, in Cassilândia-MS. The treatments were conducted in 3 envir
Eng. Agríc.. Publicado em: 2016-10
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14. ANÁLISIS DE LA MAREA TERRESTRE GRAVIMÉTRICA EN LA ESTACIÓN SAN JUAN (ARGENTINA)
Gravity measurements at the San Juan station with a Scintrex Automated CG-5 gravity meter were analyzed in order to obtain the Earth tidal parameters of amplitude and phase-difference. The observations cover a total number of 35 days. This is the first tidal analysis based on gravity measurements for this location. The Tamura tidal development was used as no
Bol. Ciênc. Geod.. Publicado em: 2015-12
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15. Desenvolvimento de ferramenta de comparação de técnicas de processamento de sinais para determinar fadiga muscular por meio do sinal emg / Toolkit development for signals processing technics comparison to detect muscular fadigue by EMG signal
This study aimed to development of a computational tool for electromyographic signal (EMG) analysis by signal processing techniques to determine muscular fatigue. With Ethics Committee of Federal University of Goiás approve were recorded from the dominant biceps brachii of 10 volunteers, that did not ever had muscular disease. The protocol consisted on get
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/07/2012
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16. A Methodology to forecast air transportation demand with alternative econometric models
This thesis presents a methodology using a portfolio of time-series models, from conventional ARMA to a regime-changing framework. The objective is to develop an air transportation demand modeling to inspect potential structural breaks in the Brazilian market, due to solve underlying issues of new demand creation. Out-of-sample forecasting is used to generat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2012
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17. Cassava root scrapings for 22 to 42-day-old broilers in high-temperature environments
The objective of this study was to analyze the effect of whole cassava root scrapings at different levels in diets for broilers in the period of 22 to 42 days of age in high-temperature environments on performance, as well as to evaluate the metabolizability of dry matter (DM), crude protein (CP) and gross energy (GE) and nitrogen balance. A total of 400 mal
Revista Brasileira de Zootecnia. Publicado em: 2012-06
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18. AnÃlise de EficiÃncia para o Mercado de Fundos de Investimentos em AÃÃes no Brasil / Efficiency Analysis of Market Shares Investment Funds in Brazil
Baseado na literatura e em trabalhos que investigam a hipÃtese de eficiÃncia dos mercados de aÃÃes atravÃs de testes de raiz unitÃria em painel, o objetivo deste trabalho à estender esta metodologia para o mercado de fundos de investimento em aÃÃes. Para tanto, aplicaram-se testes de eficiÃncia para este tipo de mercado para uma amostra nÃo aleat�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2011
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19. Effect of hydrogen on soybean root growth in a subsurface solution.
A vertical split-root technique was used to evaluate the effects of pH levels in a subsurface solution compartment on root development of soybean (Glycine max (L.)Merr.). The surface root compartment (12cm) was filled with limed and fertilized soil. Treatments in the solution compartment were seven pH levels (3.7, 4.0, 4.3, 4.6, 4.9, 5.2, and 5.5) with 2uM C
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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20. Etiology and epidemiology of Pythium root rot in hydroponic crops: current knowledge and perspectives.
The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed with emphasis on knowledge and concepts considered important for managing the disease in commercial greenhouses. Pythium root rot continually threatens the productivity of numerous kinds of crops in hydroponic systems around the world including cucumber, tomato, swee
Summa Phytopathologica. Publicado em: 2011
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21. High coffee population to improve fertility of an oxisol.
The objective of this work was to evaluate the effect of coffee (Coffea arabica L.) population densities on the chemical and microbiological properties of an Oxisol. The work was carried out on soil samples of 0-20 cm depth originated from an experimental site which had been used for coffee tree spacing studies during 15 years, in Parana State, Brazil. Eight
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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22. FORECASTING THE INDUSTRIAL ELECTRIC ENERGY DEMAND DURING THE POST CRISIS PERIOD USING VAR AND BVAR MODELS: A COMPARISON ANALYSIS / ANÁLISE COMPARATIVA DA PREVISÃO DE DEMANDA DE ENERGIA ELÉTRICA INDUSTRIAL NO PERÍODO PÓS - CRISE: UMA APLICAÇÃO DOS MODELOS VAR E BVAR
Esse estudo tem como objetivo efetuar previsões não condicionadas de demanda de energia elétrica no Brasil para a classe industrial entre os meses de Janeiro e Dezembro de 2010. Para tanto, verificou-se a causalidade entre as variáveis em estudo, em seguida se as mesmas eram estacionárias ou processos integrados. Posteriormente procedeu-se ao teste de c
Publicado em: 2011
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23. On the purchasing power parity for latin-american countries
The purpose of this paper is to test the hypothesis of long-run purchasing power parity (PPP) for all Latin American countries. These countries share similar economic history and contagious effects from currency crises, which might lead to comovements in their real exchange rates. New time series unit root tests found evidence of PPP for the vast majority of
Publicado em: 01/06/2010
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24. Cultura organizacional e gestÃo estratÃgica: o caso do Centro de Tecnologia da Universidade Federal do Cearà / Organizational culture and strategic management: the case of the Center for Technology Federal University of CearÃ
The university organizations are embedded within an environment and interact with this environment receiving influences and influencing him People who work in these organizations are agents that contribute to the exchange constant Values core beliefs common goals of these members in turn lead to the formation of the culture of the organization wich is the ro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/03/2010