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Search Results: 1 - 10 of 384083 matches for " Moisés Ferreira da Cunha "
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Estudo de Viabilidade Econ mico-Financeira do Uso de Inova o Tecnológica em Empreendimentos Imobiliários Residenciais Verticais no Distrito Federal
Paula Matias Fran?a,Alethéia Ferreira da Cruz,Moisés Ferreira da Cunha,Daiana Paula Pimenta
Revista de Finan?as Aplicadas , 2012,
Abstract: A crise do setor elétrico brasileiro, vivenciada em 2001, tornou evidente o investimento em medidas de eficiência energética e o aprimoramento de novas tecnologias com este enfoque nos diversos setores econ micos do país, dentre eles, o da constru o civil. Assim, surge a possibilidade da aplica o do barramento blindado em edifica es residenciais na pretens o de alcan ar eficiência energética, além de impactar positivamente na qualidade e na seguran a das instala es elétricas. O objetivo deste artigo foi estudar a viabilidade econ mico-financeira do uso desta inova o tecnológica nas instala es elétricas prediais residenciais. Teoricamente, apresentou-se um panorama sobre o setor energético e a importancia das inova es tecnológicas para eficiência energética, descreveu-se o conceito e aplica es do barramento blindado e resumiu-se os métodos de análise de investimento. Metodologicamente, optou-se pelo estudo de caso descritivo, aplicado a um empreendimento imobiliário residencial vertical do Distrito Federal de uma empresa do setor de constru o civil. A partir dos métodos Valor Presente Líquido, Taxa Interna de Retorno e Payback, considerando uma Taxa Mínima de Atratividade de 26,77%, os resultados encontrados foram respectivamente: R$ 70.535,10(VPL), 32% a.a.(TIR), e 3,31 anos(Payback), indicando que o uso do barramento blindado deve ser considerado como um ótimo investimento para o setor da constru o civil residencial.
Estima o dos investimentos na avalia o de empresas no Brasil: uma análise de aderência entre a teoria e a prática de mercado
Vitória Estanilau de Aguiar Fernandes,Moisés Ferreira da Cunha,Camila Araújo Machado,Michele Rilany Rodrigues Machado
ConTexto (Porto Alegre) , 2013,
Abstract: O processo de avalia o de empresas é fortemente praticado e discutido por teóricos e investidores no mercado de capitais. A mensura o da taxa de investimento é uma das etapas relevantes nesse processo, visto que as empresas buscam maximizar o seu valor de mercado a partir de elevados retornos sobre suas decis es de investimento. Este trabalho tem como objetivo central verificar se no Brasil existe aderência entre a teoria e as práticas do mercado no que tange ao processo de estima o dos investimentos em capital fixo e de giro e da taxa de investimento. A pesquisa também traz uma análise entre a aderência das proje es de investimentos nos laudos de avalia o de empresas e o que foi realizado nas demonstra es contábeis publicadas. Quanto aos métodos adotados, com o intuito de atingir o propósito desta pesquisa, optou-se por um estudo descritivo e uma pesquisa quantitativa, nos quais foi aplicado o teste de diferen a de médias. Para verificar a teoria, utilizou-se como fonte bibliográfica a contribui o de diversos autores sobre o assunto. Foi realizada uma revis o bibliográfica a partir de livros, artigos e sites específicos. Para verificar a prática do mercado brasileiro, realizou-se uma pesquisa documental através da investiga o dos laudos de avalia o das companhias, os quais s o apresentados como requisito às ofertas públicas de aquisi o de a es (OPA) e estavam disponíveis no site da Comiss o de Valores Mobiliários (CVM). Para a análise de aderência entre as proje es e o realizado, foram utilizados os dados coletados na economática. Duas amostras foram verificadas, e, a partir dos testes realizados, pode-se verificar a contribui o e a credibilidade das informa es geradas pelas avalia es de empresas no Brasil.
The Effects of Treatment on Serum Hepcidin and Iron Homeostasis in HIV-1-Infected In-dividuals  [PDF]
Joel da Cunha, Luciana Morganti Ferreira Maselli, Jovino dos Santos Ferreira, Celso Spada, Sérgio Paulo Bydlowski
World Journal of AIDS (WJA) , 2015, DOI: 10.4236/wja.2015.53018
Abstract: Background: Hepcidin is the principal regulator of iron absorption and its tissue distribution. Its correlation with iron homeostasis in individuals infected with human immunodeficiency virus type-1 (HIV-1) treated with different regimens of highly active antiretroviral therapy (HAART) was investigated. Methods: Serum hepcidin levels were determined in 448 volunteers. Of these, 372 were HIV-1-infected individuals, and 93 did not receive HAART (ART-naïve) while 279 received HAART consisting of a non-nucleoside reverse transcriptase inhibitor (NNRTI-based) and protease inhibitors (PI-based); both were used in association with a nucleoside reverse transcriptase inhibitor (NRTI). Seventy-six additional HIV-1 seronegative individuals were enrolled in the study. The following parameters were quantified: hematological parameters, iron biomarkers and markers of infection (CD4+ and CD8+ T-cells), and HIV-1 RNA (viral load). Results: Serum hepcidin, iron and ferritin levels, as well as the marker of infection, CD4+ T-cells, were significantly lower in the ART-naïve group compared with other groups. Additionally, transferrin saturation, iron binding capacity, hemoglobin level and erythrocyte level were not significantly different, and anemia was not observed in the different groups. Conclusions: HIV-1 infection affected serum hepcidin, iron and ferritin levels in the ART-naïve group, and the different HAART regimens restored the levels of hepcidin and iron homeostasis in HIV-1-infected individuals who have undetectable HIV-1 RNA levels.
Atualiza??o no diagnóstico e tratamento das les?es condrais do joelho
Cavalcanti Filho, Marcantonio Machado da Cunha;Doca, Daniel;Cohen, Moisés;Ferretti, Mário;
Revista Brasileira de Ortopedia , 2012, DOI: 10.1590/S0102-36162012000100001
Abstract: the treatment of chondral knee injuries remains a challenge for the orthopedic surgeon, mainly owing to the characteristics of the cartilage tissue, which promote low potential for regeneration. chondral lesions can be caused by metabolic stimulation, or by genetic, vascular and traumatic events, and are classified according to the size and thickness of the affected cartilage. clinical diagnosis can be difficult, especially due to insidious symptoms. additional tests, as magnetic resonance imaging (mri), may be needed. the treatment of these lesions usually starts with non-operative management. surgery should be reserved for patients with detached chondral fragments, blocked range of motion, or the failure of non-operative treatment. the surgical techniques used for the treatment of partial thickness defects are debridement and ablation. these techniques aim to improve symptoms, since they do not restore normal structure and function of the cartilage. for full-thickness defects (osteochondral lesion), available treatments are abrasion, drilling, microfracture, osteochondral autologous and allogeneic transplantation, and biological techniques such as the use of autologous chondrocyte transplantation, minced cartilage and stem cells.
Influence of the application of pre-emergent herbicides on the soil fauna of conventional sugarcane plantations
Rodrigo Ferreira da Silva,Douglas Leandro Scheid,Geomar Mateus Corassa,Gilvan Moisés Bertollo
Biotemas , 2012,
Abstract: The goal of this work was to evaluate the influence of pre-emergent herbicides on the edaphic fauna community found in soils of conventional sugarcane plantations. The experimental design was in randomized blocks, in a 6x3 factorial, with six control treatments of weed plants (T1: fallow; T2: manual weeding; T3:Tebuthiuron to 1,200gia.ha-1; T4: Ametryn to 3,000gia.ha-1; T5: Tebuthiuron to 1,000gia.ha-1 + Ametryn to 1,500gia.ha-1, T6: Tebuthiuron to 1,200gia.ha-1 + Ametryn to 3,000gia.ha-1) and three evaluation times (0, 40, and 80 days after herbicide application: DAHA). The abundance, the groups of the organisms, Margalef’s richness index, Pielou′s uniformity index, Simpson’s dominance, Shannon’s diversity index, number of Collembola and above-ground dry mass were evaluated. There were no differences in the treatments for Margalef’s richness index, Pielou′s uniformity index, Simpson’s dominance and Shannon’s index. The abundance of organisms was higher at 80 DAHA in the manual weeding treatment. Tebuthiuron did not affect Collembola populations when used alone or in combination with ametryn. The treatment with the herbicide Ametryn to 3,000gia.ha-1 reduced Collembola populations in relation to the fallow treatment and manual weeding.
INIMIGOS NATURAIS DE Alabama argillacea (HUEBB.), EM REGI ES COTONICULTORAS DO ESTADO DE GOIáS AN EVALUATION OF SOME NATURAL ENEMIES Alabama argillacea (HUEBNER. 1818) IN THE GOIáS STATE, BRAZIL
Ant?nio Lopes da Silva,Valquíria Rocha S. Veloso,Hélio Ferreira da Cunha,Gislene A. Ferreira
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v25i2.2917
Abstract: Foram realizados, nos municípios de Goiania e Itumbiara (GO), levantamentos e avalia es de parasitismo e predatismo de Alabama argillacea (Huebb.) (Lep.; Noctuidae), em duas safras agrícolas. Os principais inimigos naturais desta praga foram: Trichogramma spp. e Pantelloa similis, parasitóides de ovos e de crisálidas, respectivamente, e Rhinacloa spp., Orius spp., Geocoris spp., Nabis spp., Podisus spp., Zellus sp., Crysoperla externa e Doru lineare, predadores de ovos e de crisálidas. Os resultados mostraram que a maior porcentagem de parasitismo de ovos ocorreu em abril (88%), e a preda o de ovos (59%) durante o mês de fevereiro, em Goiania. Com rela o às crisálidas, os maiores índices de parasitismo ocorreram no final do ciclo da cultura durante o mês de maio, com 63% em Goiania e 68% em Itumbiara. Com referência à preda o, constatou-se que as maiores percentagens ocorreram em fevereiro (38%) e mar o (24%) em Goiania e Itumbiara, respectivamente. Os taquinídeos e trichogramatídeos podem controlar biologicamente o curuquerê do algodoeiro e auxiliar na manuten o de um nível populacional tolerável da praga. PALAVRAS-CHAVE: Parasitóide; Trichograma; predadores; Geocoris; Podisus; Zellus. The experiments were carried out in Goiania and Itumbiara, Goiás, Brazil, from February to May, in two consecutive crop cycles. The main cotton leafworm natural enemies found were the egg parasitoid Trichogramma spp. and coccon parasitoid Panteloa similis, and the predatory insects Rhinacloa spp., Orius spp., Geocoris spp., Nabis spp., Podisus spp., Zellus sp., Crysoperla externa and
A esperan?a é a última a morrer? Capital psicológico positivo e presentismo
Martinez,Luís Fructuoso; Ferreira,Aristides Isidoro; Sousa,Luís Manuel; Cunha,Jo?o Vieira da;
Comportamento Organizacional e Gest?o , 2007,
Abstract: the aim of this article is to enhance the understanding of the relationship between presenteeism and positive organizational behaviour. according to this, we intend to evaluate the link between two dimensions of presenteeism (completing work and avoided distraction) and one dimension of positive psychological capital (hope). the sample consisted of 158 workers mainly of health and research fields. results show that the presenteeism factor of avoided distraction is associated with the lower hope cluster. we suggest new trends concerning the implementation of presenteeism reduction programmes, in order to increase positive organizational behaviour. this study also revealed the good psychometric properties of the stanford presenteeism scale (sps-6). being a first approach, we propose new ideas concerning the development of those new fields of study.
Association between nonnutritive sucking habits and anterior open bite in the deciduous dentition of Japanese-Brazilians
Sato, Vivianne da Cunha Barbosa;Garib, Daniela;Scavone Jr., Hélio;Ferreira, Rívea Inês;
Dental Press Journal of Orthodontics , 2012, DOI: 10.1590/S2176-94512012000100014
Abstract: objective: assess the association between nonnutritive sucking habits and anterior open bite in the deciduous dentition of japanese-brazilian children. methods: 410 children of japanese origin were assessed, 206 boys and 204 girls, between 2 and 6 years of age, in schools in s?o paulo state, brazil. questionnaires concerning their nonnutritive sucking habits were sent to their legal guardians. chi-square tests (p<0.05) were applied to assess the association between nonnutritive sucking habits and anterior open bite, and the logistic regression test to obtain the relative risk. results: the prevalence of sucking habits found in the sample was of 44.6% and for the anterior open bite, 4.4%. there was a statistically significant association between anterior open bite and sucking habits (o.r.=10.77), persistence of sucking habits from 2 to 4 years old (o.r.=22.06), and the persistence of sucking habits from 4 to 6 years old (o.r.=17.31). as for the interruption period of the habit, the group that had interrupted the habit for a period equal or inferior to six months showed an increased prevalence of open bite compared to the group without this habit or in which the habit was interrupted for more than six months. conclusion: japanese-brazilian children that had sucking habits have greater chance of acquiring anterior open bite in the deciduous dentition.
Semiconducting properties of oxide and passive films formed on AISI 304 stainless steel and Alloy 600
Ferreira M. G. S.,Da Cunha Belo M.,Hakiki N. E.,Goodlet G.
Journal of the Brazilian Chemical Society , 2002,
Abstract: The semiconducting properties of passive films formed on AISI 304 stainless steel and Alloy 600 in borate buffer solution were studied by capacitance (Mott-Schottky approach) and photocurrent measurements. Oxide films formed on 304 stainless steel in air at 350 oC have also been studied. The results obtained show that, in all cases the electronic structure of the films is comparable to that of a p-n heterojunction in which the space charges developed at the metal-film and film-electrolyte interfaces have also to be considered. This is in accordance with analytical results showing that the oxide films are in all cases composed of an inner region rich in chromium oxide and an outer region rich in iron oxide.
Pascal, a justi a e os poderes
Paulo Ferreira da Cunha
Intercambio , 2010,
Abstract: A perfect master of a living style and a persuasive rhetoric, a respected scientist and mathematician, theologian, or at least strong and formidable apologist, Pascal is regarded as one of the greatest minds and of the most beautiful verb in French Thought. However, his philosophical reflections on law, justice and power and the powerful are less known, or boil down to the anecdote. In this article, after having recalled several facets of this figure in European culture, we emphasize its speculative contribution to the law, and highlight more than its timeliness, which is undeniable, the visible commitment of the author with what he thinks may be the Truth. Even in a field proverbially inclined to embarrassment and manipulations like this one of laws and politics.
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