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Search Results: 1 - 10 of 23191 matches for " érica Milena Fernandes;Diniz Neto "
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Relationship between rainfall and temperature: observations on the cases of visceral leishmaniasis in S?o Luis Island, State of Maranh?o, Brazil
Viana, Gra?a Maria de Castro;Nascimento, Maria do Desterro Soares Brand?o;Rabelo, érica Milena Fernandes;Diniz Neto, Jo?o Arnaud;Binda Júnior, José Roberto;Galv?o, Carolina de Souza;Santos, Alessandro Carvalho dos;Santos Júnior, Onildo Martins;Oliveira, Rodrigo Artur Souza de;Guimar?es, Rafael Silva;
Revista da Sociedade Brasileira de Medicina Tropical , 2011, DOI: 10.1590/S0037-86822011000600013
Abstract: introduction: visceral leishmaniasis is a serious public health problem that requires global control strategies, especially with respect to factors that may intervene in reducing the incidence of endemicity. in this work, rainfall density and temperature were correlated with the incidence of human cases in an area endemic for leishmaniasis in s?o luis do maranh?o, northeastern brazil. methods: notification of human cases by the national health foundation/regional coordination of maranh?o (funasa/corema) from 2002 to 2010 was used. ecological data (mean temperature and rainfall density) were provided by the meteorological office of state. results: a significant association was verified between the number of vl cases and rainfall rate but not in the analysis concerning mean temperatures. conclusions: these data suggest that the control actions in visceral leishmaniasis should be performed during rainy season in the state of maranh?o, which is in the first half of the year.
Evaluation of laboratory markers of progression of HIV disease to death
Viana, Gra?a Maria de Castro;Nascimento, Maria do Desterro Soares Brand?o;Ferreira, Aila de Menezes;Rabelo, érica Milena Fernandes;Diniz Neto, Jo?o Arnaud;Galv?o, Carolina de Souza;Santos, Alessandro Carvalho dos;Santos Júnior, Onildo Martins;Oliveira, Rodrigo Artur Souza de;Binda Júnior, José Roberto;
Revista da Sociedade Brasileira de Medicina Tropical , 2011, DOI: 10.1590/S0037-86822011005000062
Abstract: introduction: one of the important current problems in hiv/aids infection is the establishment of epidemiological and laboratorial prognostic parameters during patient follow-up. this study aimed at analyzing the evolution of laboratory tests: cd4 lymphocyte count, viral load, hemoglobin (hb), aspartate aminotransferase (ast), alanine aminotransferase (alt), and the epidemiological variables sex and age as prognostic factors for survival in progression to death among aids patients. methods: a retrospective study was conducted using analysis of medical records, and prospective 24-month follow-up of patients with hiv/ aids attended at the president vargas hospital outpatient clinic, a reference center in hiv/ aids attendance in the state of maranh?o, brazil. the study analyzed patients aged 10 to 60 years old, who manifested aids and who were not using antiretroviral therapy or had used it for less than 5 years. the chi-square test was used for statistical analysis. results: the sample included 100 patients - 57 were current outpatients, and 43 had died. the variables viral load (p=0.726), alt (p=0.314), sex (p=0.687), and age (p=0.742) were analyzed, and no evidence of association between them and worst prognosis was observed. conclusions: a significant relation was verified between low hb levels (p=0.000) and cd4 (p=0.000) and shorter survival.
Threats to and viability of the giant anteater, Myrmecophaga tridactyla (Pilosa: Myrmecophagidae), in a protected Cerrado remnant encroached by urban expansion in central Brazil
Milena F. Diniz,Daniel Brito
Zoologia (Curitiba) , 2013,
Abstract: Urbanization poses a serious threat to wildlife populations inhabiting native vegetation remnants surrounded by the expanding urban and suburban sprawl. The close contact with human activities causes not only direct impacts, such as habitat loss, but also indirect negative effects, such as population isolation, roadkills and anthropogenic fires. The Parque Nacional de Brasília is a large Cerrado remnant almost completely surrounded by the city of Brasília, in central Brazil. Here, we use population viability analysis to model the impacts of urbanization on a population of Myrmecophaga tridactyla (Linnaeus, 1758) inhabiting that park. Our results show that roadkill mortality is by far the most serious threat to the long-term persistence of the giant anteater in the study site. The implementation of measures to better control vehicle speed in the vicinity of the park is urgently needed if we expect the giant anteater population to be effectively protected in the Parque Nacional de Brasília.
Vitrifica??o de oócitos e embri?es bovinos produzidos in vitro e expostos à citocalasina B
Mezzalira, Alceu;Viera, Arnaldo Diniz;Barbieri, Dilmar Paulo;Machado, Mariana Fernandes;Thaler Neto, André;Bernadi, Mari Lourdes;Silva, Carlos Ant?nio Mondino;Rubin, Mara Iolanda Batistella;
Brazilian Journal of Veterinary Research and Animal Science , 2002, DOI: 10.1590/S1413-95962002000500008
Abstract: in this study, the influence of cytochalasin b on the survival and development after vitrification of oocytes and in vitro produced (ivp) bovine blastocysts was evaluated. in the experiment i, 956 oocytes were matured for 22h and were immediately vitrified (vitri treatment) or exposed for 15-20 minutes, to 7.5μg/ml (cb7.5vitri treatment) or 45μg/ml (cb45vitri treatment) cytochalasin b solutions, before vitrification. after 30 seconds of exposure to sv1 [400μl tcm-hepes with 10% fetal serum (sf), 50μl ethylene glycol (eg) and 50μl dmso], and 20 seconds to sv2 (300μl trehalose 1,0m + 20% sf, 100μl eg and 100μl dmso) solutions, the oocytes were vitrified in open pulled straws (ops). the rewarming was performed at 37-38oc in two steps of 5 minutes each, into 0.3 and 0.15m trehalose solutions, respectively. there was no difference (p>0.05) in the cleavage and embryo rates between vitri, cito7.5vitri and cito45vitri treatments, which were inferior to control group (p<0.05). in the experiment ii, 269 expanded blastocysts were distributed into three treatments. in the vitri treatment blastocysts were exposed for 1 minute to sv1 and for 20 seconds to sv2 solution, the later one modified using tcm-hepes instead of trehalose. in the cb45vitri treatment, embryos were vitrified after being exposed to a 45μg/ml cytochalasin b solution for 10 minutes. the re-expansion and hatching rates were similar to vitri and cb45vitri treatments (p>0.05), which were lower than those observed in the control group (p<0.05). the results show that, independently of dose studied (7.5 or 45mg/ml), cytochalasin b has not a beneficial effect to the vitrification of oocytes and ivp bovine blastocysts.
Heating of multi-layered samples by a Nd: YAG pulsed laser
Diniz Neto, O. O.
Revista de Metalurgia , 1998,
Abstract: In the work we examine the heating of multi-layered samples by a powerful Nd - YAG pulsed láser. The samples are made of two and three layers, conductor-isolator (Al-Al2O3), conductor-conductor (Al-Ag; Al-Au) and conductor-conductor-conductor (Al-Au-Ag; Ag-Au-Al). The transient behaviour of the temperature distribution throughout the sample is computed. We carry out three dimensional model calculations for the heating process in which we consider not only the temperature dependence of the sample thermal and optical parameters but also the space and time characteristics of the laser beam as the heating source. We showed the influence of the substrate in the thermal profile, in space and time, and máximum temperature on the multi-layered samples. Em nosso trabalho examinamos o aquecimento de amostras compostas de duas e três camadas, condutor- isolante e condutor-condutor, com um pulso potente de láser. O comportamento transiente da distribui o de temperatura através da amostra foi calculado. Em nosso modelo de calculo para o processo de aquecimento levamos em conta a dependência com a temperatura dos parametros térmicos (difusividade, capacidade e condutividade térmica), óticos (refletividade e coeficiente de absor o), bem como a dependência das condi es de contorno com o tempo e consequentemente com a temperatura. Aplicamos nossa metodología para calcular o aquecimento amostras compostas: Al-Au, Al-Ag, Al-Al2O3, Al-Au-Ag e Ag-Au-Al. Concluimos que o substrato influencia as temperaturas máximas nas superfície exposta ao láser e a forma com que a frente de calor se propaga nas amostras termicamente finas.
Perfil fitoquímico e ensaio microbiológico dos extratos da entrecasca de Maytenus rigida Mart. (Celastraceae)
Estevam, Charles S.;Cavalcanti, Amaro M.;Cambui, érica Verena F.;Araújo Neto, Vítor;Leopoldo, Paulo T. G.;Fernandes, Roberta P. M.;Araujo, Brancilene S. de;Porfírio, Zenaldo;Sant'Ana, Antonio Euzébio G.;
Revista Brasileira de Farmacognosia , 2009, DOI: 10.1590/S0102-695X2009000200020
Abstract: maynetus rigida mart (celastraceae), known as "bom-homem", "bom-nome", "cabelo-de-negro", "casca-grossa" and "pau-de-colher", is a small tree. the stem bark is used by the population in the northeast of brazil to treat aches, infections and inflammations in general. the present work evaluated both the phytochemistry of m. rigida mart by an analytical routine, and the antimicrobial activity of the bark extracts by the kirby-bauer modified method. our results showed the aqueous, methanol, chloroform, ethyl acetate and hydroalcoolic extracts of m. rigida mart has antimicrobial activity against escherichia coli, pseudomonas aeruginosa and staphylococcus aureus, while the hexane extract does not have any activity. catechins, quinones, steroids, triterpenes, saponins, flavonoids and phenolic compounds were detected by the phytochemical analysis.
Percep??o e estrutura??o de problemas sociais utilizando mapas cognitivos
Diniz, Milena Estanislau;Lins, Marcos Pereira Estellita;
Produ??o , 2012, DOI: 10.1590/S0103-65132011005000064
Abstract: this work proposes a systematization of social problems based on the construction and analysis of cognitive maps. this arrangement is based on the perception of people; more precisely, on the inference of mental states regarding the behavior of social agents given in speech of experts. this study aimed to broaden the understanding of social problems, such as public safety and health, through the analyses of two case studies. the development of cognitive maps has clarified the implications of the experts concerning decision-making and actions. a more integrated view of the problems of public security and the crisis in university hospitals was obtained. in addition, this study provided a record of strategic view of the interviewees facing two complex social problems that directly impact the society's quality of life.
Percep o e estrutura o de problemas sociais utilizando mapas cognitivos Perception and structuring of social problems using cognitive maps
Milena Estanislau Diniz,Marcos Pereira Estellita Lins
Produ??o , 2012,
Abstract: Este trabalho prop e a estrutura o de dois problemas sociais complexos baseados na constru o e análise de mapas cognitivos. Esta estrutura o está baseada na percep o das pessoas, mais precisamente dos estados mentais captados do discurso, relativos ao comportamento de agentes de áreas sociais. O estudo visou estender a compreens o de problemas sociais como o de seguran a pública e saúde pública através da realiza o de dois estudos de caso. A elabora o dos mapas cognitivos permitiu explicitar as inferências dos especialistas referentes à tomada de decis o e nas a es. Uma vis o mais integrada dos problemas da seguran a pública e da crise dos hospitais universitários foi obtida. Além disso, o presente trabalho disponibilizou um registro da vis o estratégica dos entrevistados diante de dois problemas sociais complexos que impactam diretamente a qualidade de vida da sociedade. This work proposes a systematization of social problems based on the construction and analysis of cognitive maps. This arrangement is based on the perception of people; more precisely, on the inference of mental states regarding the behavior of social agents given in speech of experts. This study aimed to broaden the understanding of social problems, such as public safety and health, through the analyses of two case studies. The development of cognitive maps has clarified the implications of the experts concerning decision-making and actions. A more integrated view of the problems of public security and the crisis in university hospitals was obtained. In addition, this study provided a record of strategic view of the interviewees facing two complex social problems that directly impact the society's quality of life.
Concentra??o de finos provenientes da planta de beneficiamento do minério de manganês da Minera??o Morro da Mina/RDM por mesa oscilatória
Reis, érica Linhares;Lima, Rosa Malena Fernandes;
Rem: Revista Escola de Minas , 2005, DOI: 10.1590/S0370-44672005000300008
Abstract: this article presents the results of fine manganese ore from morro da mina mine/rdm concentration studies using oscillatory table in order to obtain concentrates to be used in metallurgical industries. the global, the fractions above and below 0,074 mm samples manganese contents were 28,30; 26,84 and 31,31%, respectively. it was observed that 80% of the particles in global sample were below 0,149 mm. for the optimized table concentration test, solids pulp with 15% and table inclination angle of 3o, the manganese recoveries of the global, fraction above 0,074 and below 0,074 mm samples were of 77, 81 and 62%, respectively. the manganese and impurities contents in those concentrates satisfied the chemical specifications of morro da mina mine/rdm products.
Elei es no Paraná: 1998 – 2010 Elections in Paraná: 1998-2010 élections dans le Paraná: 1998-2010
Omar Neto Fernandes Barros
Confins , 2010, DOI: 10.4000/confins.6671
Abstract: A temática das elei es no Brasil vem sendo explorada por diversos autores sendo poucos os vinculados à Geografia. No momento atual, em que mais uma vez vários candidatos postulam a dire o da na o, estados e parlamento, parece-nos oportuno refletir sobre esse tema de maneira geográfica. Tendo por base uma documenta o cartográfica, o trabalho tem como objetivo realizar a análise dos resultados das elei es em ambito estadual do Paraná, no período 1998 - 2010, para o cargo de Governador, compreendendo a produ o dos espa os político-eleitoral. A metodologia adotada da Cartografia Temática é um valioso instrumental que permite explorar a massa de dados estatísticos regionalizados. O programa computacional utilizado é o Philcarto, disponível em http://philcarto.free.fr. Os principais resultados permitem revelar uma regionaliza o preferencial dos votos em alguns candidatos, mas esses podem variar ao longo do tempo. Com a análise dos mapas apresentados foi possível alguns prognósticos e confirma es para 2010. The theme of the elections in Brazil has been explored by several authors but with few linked to geography. At the moment, when once more several candidates postulate the leadership of the nation, States and Parliament, it seems to be opportune to make a reflection about this theme from a geographical point of view. Based on a cartographic documentation, the work has as an objective the analysis of results from the elections in the state of Paraná, in the period of 1998 - 2010, for the positions of Governor, including the production of the electoral-political spaces. The methodology of thematic cartography is a valuable instrument that allows the exploration of the statistic data mass by regions. The software used is Philcarto available at http://philcarto.free.fr. The principal results allow to reveal a regionalization of preferential votes on candidates, but these might change over time. With the maps analysis it became possible some predictions and confirmation for 2010. Le thème des élections au Brésil est étudié par plusieurs auteurs peu liés à la Géographie. à l’heure actuelle, quand encore une fois de plus de divers candidats postulent présider la nation, les états et le parlement, il nous semble opportun de réfléchir sur ce thème sous le point de vue géographique. Ayant pour base une documentation cartographique, ce travail a pour objectif analyser les résultats des élections dans l’état du Paraná pendant la période de 1998 à 2010, pour le poste du Gouvernement, comprenant la production des espaces politique-électorale. La méthodologie adopt
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