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Search Results: 1 - 10 of 212319 matches for " Pedro Pereira de Oliveira;Castro "
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Aspectos epidemiológicos e clínicos do escorpionismo na regi o de Santarém, Estado do Pará, Brasil
Pardal Pedro Pereira de Oliveira,Castro Lívia Correa,Jennings Erik,Pardal Joseana Silva de Oliveira
Revista da Sociedade Brasileira de Medicina Tropical , 2003,
Aspectos epidemiológicos e clínicos do escorpionismo na regi?o de Santarém, Estado do Pará, Brasil
Pardal, Pedro Pereira de Oliveira;Castro, Lívia Correa;Jennings, Erik;Pardal, Joseana Silva de Oliveira;Monteiro, Maria Rita de Cássia da Costa;
Revista da Sociedade Brasileira de Medicina Tropical , 2003, DOI: 10.1590/S0037-86822003000300006
Abstract: this is a descriptive and prospective study on epidemiological and clinical aspects of 72 scorpion accidents admitted to santarém municipal hospital, state of pará, brazil, from february 2000 to february 2001. only 8.3% brought the animal with them, identified as t. cambridgei. the majority of victims were male (83.3%). the mean age and the time of the medical help were respectively 33.6±18.3 years and 4.6±3.2 hours. the parts of the body most affected were the superior members (51.5%). local symptoms occurred in 91.7% cases and systemic manifestations in 98.6% of the accidents. the local symptoms included: paresthesia in 79.2% cases, pain in 52.8% and edema in 26.4%. among the systemic manifestations neurological disorders predominated in 97.2%, and the symptom of "electric shock" occurred in 88.9% patients. the most common neurological signs were: myoclonia (93%), dysmetria (86.1%), dysarthria (80.6%), and ataxia (70.8%). the accidents were classified as moderate in 76.4% without any serious cases. the specific anti-venom serum was not administered in 32.7% of the moderate cases, due to non-availability of the anti-venom serum at the time of attendance. the victims of scorpion envenomation notified at santarém, present a different clinical and regional behavior from previous reports in brazil and amazonia regions. the predominantly neurological picture has not previously been described in the brazilian literature.
Rela??es entre transpira??o máxima, evapotranspira??o de referência e área foliar em quatro variedades de mangueira
Oliveira, Greice Ximena Santos;Coelho Filho, Maurício Antonio;Pereira, Francisco Adriano de Carvalho;Coelho, Eugênio Ferreira;Paz, Vital Pedro da Silva;Castro Neto, Manoel Teixeira de;
Revista Brasileira de Fruticultura , 2009, DOI: 10.1590/S0100-29452009000100005
Abstract: a study relating maximum transpiration (l m-2 leaf day-1) to reference evapotranspiration (eto) for four mango cultivars (tommy atkins, palmer, haden and van dyke, with 14 m2, 8 m2, 33 m2 and 12 m2 of leaf area, respectively) was carried out at embrapa cassava and tropical fruits, in the conditions of cruz da almas-ba. plant transpiration (l. day-1) was estimated by heat balance sensors that were installed on the shoots (models sag13; sgb9; sgb16; sgb19 e sgb25, dynamax inc.). the sensors were installed to the north (n), south (s), east (e), west (w) and center(c) of each plant. the transpiration per unity leaf area (l.m-2.day-1) varied about 1.58 in average along the studied period and it also varied linearly with the increase in total leaf area, regardless the studied variety. transpiration (liters m-2 leaf area day -1) varied from 0.36 to 3.00, according to the atmospheric demand. the maximum transpiration (t) of the four mango varieties (liters m-2 leaf area day -1) linearly related to eto (t = 0.44. eto; r2 = 0.78), performing as a reasonable tool for mango crop drip irrigation management.
Quantification and source identification of atmospheric particulate polycyclic aromatic hydrocarbons and their dry deposition fluxes at three sites in Salvador Basin, Brazil, impacted by mobile and stationary sources
Rocha, Gisele O. da;Lopes, Wilson A.;Pereira, Pedro A. de Paula;Vasconcellos, Pérola de Castro;Oliveira, Fábio S.;Carvalho, Luiz S.;Concei??o, Liliane dos Santos;Andrade, Jailson B. de;
Journal of the Brazilian Chemical Society , 2009, DOI: 10.1590/S0103-50532009000400012
Abstract: the present work has aimed to determine the 16 us epa priority pah atmospheric particulate matter levels present in three sites around salvador, bahia: (i) lapa bus station, strongly impacted by heavy-duty diesel vehicles; (ii) aratu harbor, impacted by an intense movement of goods, and (iii) bananeira village on maré island, a non vehicle-influenced site with activities such as handcraft work and fisheries. results indicated that bbf (0.130-6.85 ng m-3) is the pah with highest concentration in samples from aratu harbor and bananeira and cry (0.075-6.85 ng m-3) presented higher concentrations at lapa station. pah sources from studied sites were mainly of anthropogenic origin such as gasoline-fueled light-duty vehicles and diesel-fueled heavy-duty vehicles, discharges in the port, diesel burning from ships, dust ressuspension, indoor soot from cooking, and coal and wood combustion for energy production.
Avalia??o dos impactos macro-econ?micos e de bem-estar da reforma tributária no Brasil
Pereira, Ricardo A. de Castro;Ferreira, Pedro Cavalcanti;
Revista Brasileira de Economia , 2010, DOI: 10.1590/S0034-71402010000200007
Abstract: this article evaluates the impact on the brazilian economy of a tax reform that reduces distortions and cumulative taxes, using for such experiment the current proposal of the brazilian treasury department (ministério da fazenda). we employ a standard dynamic recursive model calibrated as close as possible to the current brazilian economy in our simulations, which are implemented by introducing in this artificial economy parameters corresponding to the tax reform. it is estimated that the current proposal would lead to an increase of 1.2 percentile point in the output growth rate in the eight years following its implementation and a long run gain of 14% from its current trend. the impact on the investment level would be very expressive, 40% in the same period, so that the investment rate would from 20% for 26%. estimated welfare gains were also very large.
Efeitos de Crescimento e Bem-estar da Lei de Parceria Público-Privada no Brasil
Pereira, Ricardo A. de Castro;Ferreira, Pedro Cavalcanti;
Revista Brasileira de Economia , 2008, DOI: 10.1590/S0034-71402008000200005
Abstract: this article investigates the growth and welfare impacts of the public-private-partnership (ppp) policy in brazil, by means of a recursive model calibrated to the country. the theoretical model assumes two types ofcapital - physical and infrastructure - and the latter may by public or private. our experiment reproduces the main features of the ppp law, the law no 11.079 of december 2004. in the calibration process, we paid special attention to the fraction ofinfras-tructure services supplied for free by the government and to the calculation of tariffs and taxes. simulations found that the potential impact on growth and welfare are not substantial. nevertheless, those magnitudes could be magnified depending on the external effect of infrastructure.
Molybdenite as a Rhenium Carrier: First Results of a Spectroscopic Approach Using Synchrotron Radiation  [PDF]
Teresa Pereira da Silva, Maria-Ondina Figueiredo, Daniel de Oliveira, Jo?o Pedro Veiga, Maria Jo?o Batista
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2013, DOI: 10.4236/jmmce.2013.15032
Abstract: The chemical and physical properties of rhenium render it a highly demanded metal for advanced applications in important industrial fields. This very scarce element occurs mainly in ores of porphyry copper-molybdenum deposits associated with the mineral molybdenite, MoS2, but it has also been found in granite pegmatites and quartz veins as well as in volcanic gases. Molybdenite is a typical polytype mineral which crystal structure is based on the stacking of [S-Mo-S] with molybdenum in prismatic coordination by sulphide anions; however, it is not yet clearly established if rhenium ions replace Mo4+ cations in a disordered way or else, if such replacement gives rise to dispersed nanodomains of a rhenium-rich phase. As a contribution to clarify this question, an X-ray absorption spectroscopy (XANES) study using synchrotron radiation was performed at the Re L3-edge of rhenium-containing molybdenite samples. Obtained results are described and discussed supporting the generally accepted structural perspective that rhenium is mainly carried by molybdenite through the isomorphous replacement of Mo, rather than by the formation of dispersed Re-specific nanophase(s).
Towards the Recovery of By-Product Metals from Mine Wastes: An X-Ray Absorption Spectroscopy Study on the Binding State of Rhenium in Debris from a Centennial Iberian Pyrite Belt Mine  [PDF]
Maria-Ondina Figueiredo, Teresa Pereira da Silva, Jo?o Pedro Veiga, Daniel de Oliveira, Maria Jo?o Batista
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2014, DOI: 10.4236/jmmce.2014.22018
Abstract: Rhenium is a very scarce element, occurring in the Earth's crust mainly carried by molybdenite (MoS2). Due to a very low availability comparative to actual industrial demand, rhenium is nowadays one of the most expensive mineral commodities and an increased interest is focused on ex- ploring residues resulting from a long-term mining, particularly of sulphide ore deposits. It is therefore noteworthy to assign the presence of rhenium (in a concentration up to 3 ppm) in the waste materials from the old sulphur factory at the abandoned mine of Sao Domingos (Iberian Pyrite Belt, Southeast Portugal), exploited since the Roman occupation of Iberia. Aiming at a potential sustainable recovery of rhenium as a by-product, X-ray near-edge absorption spectroscopy (XANES) was applied to clarify the Re-binding and mode of occurrence by comparing Re L3-edge XANES spectra obtained from mine waste samples (previously fully characterized by X-ray laboratory techniques) with similar spectra collected from Re-rich molybdenites (Mo1-xRexS2) and from Re-O model compounds configuring various valences and coordination environments of rhenium ions. Obtained results are commented, ruling out a possible Re-S binding and rather conforming with the binding of rhenium to oxygen in the analysed mine waste materials.
Screening of plants found in the State of Amazonas, Brazil for activity against Aedes aegypti larvae
Pohlit, Adrian Martin;Quinard, Etienne Louis Jacques;Nunomura, Sergio Massayoshi;Tadei, Wanderli Pedro;Hidalgo, Ari de Freitas;Pinto, Ana Cristina da Silva;Santos, Elba Vieira Mustafa dos;Morais, Sabrina Kelly Reis de;Saraiva, Rita De Cássia Guedes;Ming, Lin Chau;Alecrim, Alexandre Mascarenhas;Ferraz, Alfeu de Barros;Pedroso, Andreza Cristiana da Silva;Diniz, Elisangela Vieira;Finney, Ellen Kathryn;Gomes, Erika de Oliveira;Dias, Hercules Bezerra;Souza, Katiuscia dos Santos de;Oliveira, Laura Cristina Pereira de;Don, Luciana de Castro;Queiroz, Maria Mireide Andrade;Henrique, Marycleuma Campos;Santos, Mirian dos;Lacerda Júnior, Orivaldo da Silva;Pinto, Patrícia de Souza;Silva, Suniá Gomes;Gra?a, Yara Rodrigues;
Acta Amazonica , 2004, DOI: 10.1590/S0044-59672004000100012
Abstract: ethanol, methanol and water extracts representing mostly native plant species found in the amazon region were prepared, respectively, by maceration, continuous liquid-solid extraction and infusion, followed by evaporation and freeze-drying. the freeze-dried extracts were tested for lethality toward aedes aegypti larvae at test concentrations of 500 mg / ml. in general, methanol extracts exhibited the greatest larvicidal activity. the following 7 methanol extracts of (the parts of) the indicated plant species were the most active, resulting in 100% mortality in a. aegypti larvae: tapura amazonica poepp. (root), piper aduncum l. (leaf and root), p. tuberculatum jacq. (leaf, fruit and branch). and simaba polyphylla (cavalcante) w.w. thomas (branch).
Health Related Quality of Life of Pregnant Women and Associated Factors: An Integrative Review  [PDF]
Cinthia Gondim Pereira Calou, Ana Karina Bezerra Pinheiro, Régia Christina Moura Barbosa Castro, Mirna Fontenele de Oliveira, Priscila de Souza Aquino, Franz Janco Antezana
Health (Health) , 2014, DOI: 10.4236/health.2014.618273
Abstract: Objective: The objectives were to characterize the scientific production on Health-Related Quality of Life of pregnant women, identify the areas that are most affected during pregnancy and puerperal period and identify the instruments used to assess quality of life related to health in pregnant women. Methods: For the integrative review, 11 articles published from 2006 to 2013 in the PUBMED, MEDLINE, CINAHL, SCOPUS and SCIELO were selected. Result: Data showed scarce publication from nursing professionals, prevalence of non-experimental studies conducted mainly in Brazil. The most commonly instruments used were the WHOQOL-BREF and SF-12. The presence of pain, nausea and vomiting, depression, low education, younger age and absence of partner negatively affect the quality of life of pregnant women. Practicing physical activity and being socially supported during pregnancy favour a better quality of life. In the domain of social relations, sexuality was the only affected facet. Conclusion: Gaps in the level of evidence considered weak were identified. We suggest bigger role of nurses in research on the subject so that there will be the development of effective interventions to support nursing practice and ensure quality care and consequently improve the quality of life of women in pregnancy and childbirth.
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