oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

2019 ( 110 )

2018 ( 214 )

2017 ( 173 )

Custom range...

Search Results: 1 - 10 of 89185 matches for " Andrezza Miguel da Silva "
All listed articles are free for downloading (OA Articles)
Page 1 /89185
Display every page Item
CASOS DE MASTITE SUBCLíNICA EM VACAS LACTANTES DA RA A GIROLANDA NO PERíODO SECO E CHUVOSO DO ANO, NA REGI O LITORAL DO RIO GRANDE DO NORTE
Andrezza Miguel da Silva,Elizete Teresinha Santos Cavalcanti
Nucleus Animalium , 2012,
Abstract: O objetivo deste trabalho foi avaliar o efeito dos diferentes períodos do ano, sobre a incidência de casosde mastite subclínica em vacas Girolanda, em uma fazenda na regi o Litoral do Rio Grande do Norte. Para isso, foi realizado o California Mastits Test, no leite das vacas multíparas e primíparas, durante a ordenha da manh . Operíodo de estudo foi durante os meses de novembro de 2005 a novembro de 2006. Verificou-se que o período do ano afetou a ocorrência de casos de mastite subclínica nas vacas. Maior quantidade de casos da doen a ocorreu no período chuvoso do ano, com valores de 59,8 % (tetos) e de 81,6% (animais).The objective of this study was to evaluate the effect of different periods the year, on the incidence of subclinical mastitis in cows Girolanda, on a farm in the region Coastal of Rio Grande do Norte. For this, we performed the California Mastits Test in the milk of cows multiparous and primiparous during the milking morning. The period of study was during the months of November 2005 to November 2006. It was found that the period of the year affected the occurrence of cases of mastitis subclinical in cows. Larger number of cases of disease occurred during the rainy season of the year, with values of 59,8% (teats) and 81,6% (animals).
Caracteriza o do pasto e da extrusa de novilhas Girolanda, em pastagem de Brachiaria decumbens, submetidas a diferentes taxas de lota o =Characterization of grass and extrusa from Girolanda heifers grazing on Brachiaria decumbens pasture, under different stocking rates
Andrezza Miguel da Silva,Elisa Cristina Modesto,Carolina Camara Lira,Mércia Virginia Ferreira dos Santos
Acta Scientiarum : Animal Sciences , 2011,
Abstract: O objetivo deste trabalho foi avaliar as características do pasto e da extrusa de novilhas Girolanda, submetidas a três taxas de lota o, em pastagem de capim Brachiaria decumbens Stapf., em diferentes períodos de avalia o. Foram utilizadas seis novilhas da ra a Girolanda e os tratamentos foram constituídos por diferentes taxas de lota o (2, 4 e 6 UA); cada bloco foi formado por três piquetes. O delineamento foi de blocos ao acaso em parcelas subdivididas com medidas repetidas no tempo. A taxa de bocados dos animais variou com operíodo de avalia o, com valores de 41 bocados min.-1 (Período 1) e 33 bocados min.-1 (Período 3). A taxa de bocados reduziu ao longo dos períodos de pastejo com valores de 41 a 33 bocados min.-1 Já o tamanho do bocado apresentou valores maiores nos períodos de avalia o 2 e 3, na taxa de lota o 2 UA (0,40 e 0,43 g MS bocado-1). A matéria seca da extrusa apresentou valores maiores no 3° (15,0% de MS) e 2° (17,4% de MS) dia de pastejo. O aumento no teor de proteína bruta da extrusa ocorreu no terceiro período de pastejo (14,4%) e no teor de fibra em detergente neutro (75,3%). The objective of this study was to evaluate the characteristics of the grass and extrusa from Girolanda heifers, under three stocking rates on grass pasture of Brachiaria decumbens Stapf., at different evaluation periods. Six Girolanda heifers were used, and treatmentsconsisted of different stocking rates (2, 4 and 6 UA). Each block was formed by three paddocks. The design was a randomized blocks design in split-plot with repeated measures over time. The bite rate of the animals varied according to assessment period, with values of 41 bites min.-1 (Period 1) and 33 bites min.-1 (Period 3). Bite rate decreased over the grazing period, with values from 41 to 33 bit min-1. Bite size was larger in grazing periods 2 and 3, at the stocking rate of 2 UA (0.40 and 0.43 g DM bite-1). Extrusa dry matter was higher in the third (15.0% DM) and second (17.4% DM) days of grazing. An increase in crude protein content of extusa occurred in the third grazing period (14.4%) and for total neutral detergent fiber (75.3%).
Nifedipina promove diminui??o da qualidade óssea em ratas com osteopenia
Bertoncello, Dernival;Silva, Andrezza Ferreira da;Borges, Juliana Almeida de Souza;
Fisioterapia e Pesquisa , 2008, DOI: 10.1590/S1809-29502008000400007
Abstract: the aim of this study was to assess, by biomechanical and physical parameters, the bone quality of femurs from ovariectomized female rats treated with nifedipine. twenty eight wistar female rats, 4 months old, were divided into four groups: intact (int); intact treated with nifedipine (int+nfd); ovariectomized treated with saline (ovx+sal); ovariectomized treated with nifedipine (ovx+nfd). treatment was carried out for eight weeks, six days per week, with administration of 10 mg of nifedipine or 0.1/100g bw of saline, by gavage. after removing the right femur of each animal, maximum load support, mineral density, and bone quality were assessed. results were statistically analysed and significance level set at p<0.05. a significant reduction of maximal load support was found in femur of rats treated with nifedipine (ovx+nfd and int+nfd groups). in the latter group, a significant increase in mineral density was noticed. results show that treatment with nifedipine resulted in lower bone quality.
Economia na produ??o de helic?nias no Estado do Rio de Janeiro
Machado Neto, Andrezza da Silva;Jasmim, Janie Mendes;Ponciano, Niraldo José;
Ciência Rural , 2011, DOI: 10.1590/S0103-84782011005000132
Abstract: the purpose of the research was to determine, through the calculation of net present value (vpl), internal return rate (tir) and economic payback (pbe), the viability of heliconias production in the rio de janeiro state, as well as identify and verify, by means of sensitivity analysis in which extent some factors of the production system exercise impact on the profitability of the producing regions. the results showed that helic?nia production is a profitable activity, according to the method of tir and considering minimal attractiveness rates (tma) of 6% and 12% for calculating the net present value (vpl). however, there are limitations in the sector of produce flow, delaying the consolidation of this market. the percentage of losses and the selling price of the product presented determinant factors on the time of return on investment (pbe). in addition, the selling price of the product was the variable with greater effect on profitability, followed by the land value and the seedlings cost.
Indicadores econ micos da produ o de flores tropicais no estado do Rio de Janeiro Economic indicators of tropical flower production in Rio de Janeiro state
Andrezza da Silva Machado Neto,Janie Mendes Jasmim,Niraldo José Ponciano
Revista Ceres , 2013,
Abstract: Esta pesquisa teve como objetivo determinar, mediante o cálculo do valor presente líquido (VPL), da taxa interna de retorno (TIR) e do Payback Econ mico (PBE), a viabilidade econ mica da produ o de Alpinia purpurata, Etlingera elatior e Anthurium andraeanum, no Estado do Rio de Janeiro, bem como identificar e verificar, por meio da análise de sensibilidade, a influência de alguns fatores do sistema produtivo sobre a rentabilidade da atividade nas principais regi es produtoras. Os resultados mostram que a produ o das espécies tropicais consideradas é uma atividade lucrativa e promissora para os agricultores no Estado do Rio de Janeiro. Porém, trata-se de um mercado em constru o, cujos itens de maior impacto sobre a rentabilidade e o tempo de retorno do investimento (PBE) s o o pre o de venda do produto e o percentual de perdas da produ o. Assim, a agrega o de valor e o planejamento estratégico da produ o s o importantes medidas mercadológicas para a consolida o deste setor. The purpose of this study was to determine, through the calculation of the net present value (VPL), the internal return rate (TIR) and of the Economic Payback (PBE), the economic viability of the production of Alpinia purpurata, Etlingera elatior and Anthurium andraeanum in the Rio de Janeiro State, as well as to identify and to verify by means of sensitivity analysis the influence of some factors of the production system on the profitability of the activity in the main producing regions. The results showed that the production of the tropical species is a profitable and promising activity for the farmers in the State of Rio de Janeiro. However, it is a developing market, whose factors of greatest impact on the profitability and investment return time (PBE) are the selling price of the product and the percentage of production losses. Thus, the aggregation of value and strategic planning of the production are important market measures for the consolidation of this sector.
Critical Education beyond Capital: Challenges on Overcoming Social and Scholar Inequalities over the Stage of Contemporary Education Policies  [PDF]
Maurício Roberto da Silva, Miguel ?ngelo Silva da Costa, Luci dos Santos Bernardi
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.64048
Abstract: The essay aims to bring the discussion concerning the “Rule of Critical Education” and its confluence together with “Education beyond Capital”. Thus, it is an approach dedicated to reflecting the challenges and possibilities to overcome social and scholar inequalities on the stage of contemporary education policies.
Efeito do treinamento físico sobre o tecido ósseo e a concentra o sérica de cálcio em camundongos fêmeas ovariectomizadas
Tenório Angélica da Silva,Alves Simone Bezerra,Bezerra Andrezza de Lemos,Souza Grace Mary Lima
Acta Cirurgica Brasileira , 2005,
Abstract: OBJETIVO: Investigar as possíveis altera es morfométricas no tecido ósseo e na concentra o sérica de cálcio em camundongos ovariectomizadas submetidas ao treinamento físico. MéTODOS: Cinqüenta camundongos fêmeas, com 90 dias de idade, distribuídos em 5 grupos (n=10): controle (C), pseudo-operado sedentário (POS), pseudo-operado treinado (POT), ovariectomizado sedentário (OVS) e ovariectomizado treinado (OVT). Os grupos OVS e OVT foram submetidos a ovariectomia, e os grupos POS e POT a uma pseudo-cirurgia. Trinta dias após a cirurgia, os grupos POT e OVT foram submetidos ao exercício físico, durante 05 semanas em esteira elétrica a uma velocidade de 20 m/min. Os demais animais permaneceram sedentários no mesmo período. Após esse período os animais foram sacrificados, coletando o sangue para realiza o de dosagens séricas de cálcio e os fêmures direitos para estudo histomorfométrico. RESULTADOS: A concentra o sérica de cálcio no grupo OVT apresentou-se mais baixa do que nos demais grupos (p<0,05). A massa dos fêmures mostrou-se superior em rela o ao grupo controle, nos grupos POT e OVT (p<0,05). A densidade média de osteócitos foi mais alta no grupo OVS (p<0,05). O valor médio da área dos osteócitos mostrou diferen a apenas entre os grupos POS e OVS (p<0,05). N o houve diferen as no comprimento ósseo nem no perímetro dos osteócitos. CONCLUS O: O exercício, em parte, preveniu as altera es do tecido ósseo decorrentes da ovariectomia e possibilitou um aumento da forma o óssea.
Inibidores de proteases encontrados em sementes de Caesalpinia echinata (paubrasil): isolamento e caracteriza??o do inibidor de tripsina
Oliveira, Lúcio Garcia de;Gozzo, Andrezza Justino;Nunes, Viviane Abreu;Silva, Ilana Cruz;Sampaio, Misako Uemura;Sampaio, Claudio Augusto Machado;Araújo, Mariana da Silva;
Revista Brasileira de Farmacognosia , 2002, DOI: 10.1590/S0102-695X2002000300035
Abstract: caesalpinia echinata, o pau-brasil, é uma árvore pertencente à família das leguminosas, sub-família caesalpinoidae. como já foram encontrados inibidores de proteases em sementes de outras leguminosas, o objetivo do trabalho é purificar e caracterizar o inibidor de tripsina extraído das sementes de c. echinata. após extra??o salina e precipita??o por acetona, os inibidores foram purificados por cromatografia de troca i?nica e filtra??o em gel, apresentando massas moleculares de 19,5 e 10 kda e constante de inibi??o da ordem de nm.
T-SCORM: An Extension of the SCORM Standard to Support the Project of Educational Contents for t-Learning  [PDF]
Francisco Miguel da Silva, Francisco Milton Mendes Neto, Aquiles Medeiros Filgueira Burlamaqui, Diogo Henrique Duarte Bezerra
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.31017
Abstract: The Interactive Digital Television (iDTV) has facilitated and expanded the communication and interaction in activities of knowledge acquisitions, entertainment and recreation in Distance Learning field. This new way of teaching and learning has been called t-Learning. In this context, the Learning Objects (LOs) have an important role to assist in the electronic courses’ development. Due the fast progress of e-Learning, some efforts to standardization have appeared in order to enable the reusability of educational contents and interoperability among systems, and one of these standards is the Sharable Content Object Reference Model (SCORM). Therefore, the main goal of this work is to present an extension of SCORM aiming to adapt it in order to improve the search and navigation of LOs with educational content for t-Learning. That will be done through an authoring tool named T-SCORM ADAPTER, which will be able to apply this extension in a fast and efficient way.
DESENVOLVIMENTO REGIONAL E SUAS CONSEQUêNCIAS EM RORAIMA: NOTAS PRELIMINARES A PARTIR DA BR-174
Juan Miguel KANAI,Rafael da Silva OLIVEIRA
Revista ACTA Geográfica , 2011,
Abstract: This article analyzes the territorial restructuring of the state of Roraima in the extreme north of Brazil, which it characterizes as a process of urban globalization with intensified geographically uneven development. Blending governmental documents, secondary statistical sources and media reports with fieldwork-based site observations, and local surveys and interviews, the article argues that federal investments in roadway development and ancillary infrastructure have brought about unprecedented connectivity and economic dynamism for the state. Yet, the article also shows that rather than sustainable regional development, governmental plans and projects were guided by the imperative of economic transnationalization and urban competitiveness with an overarching focus on metropolitan Manaus, the primate regional core for the Western Amazon region where Roraima has historically played a peripheral role.
Page 1 /89185
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.