oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 1 )

2019 ( 87 )

2018 ( 95 )

2017 ( 92 )

Custom range...

Search Results: 1 - 10 of 59076 matches for " Marco Aurélio Ferreira;Pereira "
All listed articles are free for downloading (OA Articles)
Page 1 /59076
Display every page Item
QUALIDADE HIGIêNICO-SANITáRIA DAS áGUAS DE IRRIGA O DE ESTABELECIMENTOS PRODUTORES DE HORTALI AS NO MUNICíPIO DE TERESóPOLIS, RJ
Aldo Pacheco Ferreira,Marco Aurélio Pereira Horta,Cássia Regina Alves Pereira
Revista Uniandrade , 2012,
Abstract: O objetivo desse estudo foi avaliar a qualidade higiênico-sanitária da água destinada a irriga o em 10 estabelecimentos produtores de hortali as do Município de Teresópolis, RJ. O período de pesquisa deu-se entre 2010 e 2011.Para o isolamento de Cryptosporidium spp. utilizou-se o método de concentra o de oocistos por centrifuga o em membrana filtrante. Para determina o da presen a/ausência de oocistos e cistos utilizou-se a imuno fluorescência direta (IFD).Oscoliformes totais (CT) e termotolerantes (CTT) foram avaliados de acordo com a PortariaMS 518/2004. A IFD proporcionou confirma o de 23,82% de amostras positivas de Cryptosporidium spp. no período chuvoso e de 41,44% no de seca; e confirma o de 21,63% de amostras positivas de Giardia spp. no período chuvoso e 45,33% no de seca. No período chuvoso, considerando o NMP (número mais provável), a médiade CT foi de 37,6 NMP/100mL e de CTT 17,8 NMP/100mL. Para o período seco amédia de CT foi de 45,5 NMP/100mL e de CTT 19,9 NMP/100mL. Urge a implementa o de a es sanitárias nos estabelecimentos agrícolas produtores de hortali as e do município de Teresópolis, para que tenha a garantia de que a água de irriga o n o contamine os alimentos, nem ofere a riscos à saúde da popula o.
Ammonia volatilization of urea in the out-of-season corn
Pereira, Hamilton Seron;Le?o, Anabelisa Ferreira;Verginassi, Adriana;Carneiro, Marco Aurélio Carbone;
Revista Brasileira de Ciência do Solo , 2009, DOI: 10.1590/S0100-06832009000600017
Abstract: the aim of this study was to evaluate the n losses due to volatilization at different rates of common urea, polymer coated urea and urease inhibitor-treated urea in the out-of-season corn, using semi-open static collectors. the treatments consisted of n levels on side-dressing fertilization with urea in different treatments: (a) control (without n), (b) urea 40 kg ha-1 n, (c) urea 80 kg ha-1 n, (d) polymer coated urea 40 kg ha-1 n, (e) polymer coated urea 80 kg ha-1 n and (f) urea with the urease inhibitor (ui) n 80 kg ha-1 n. the results showed that the treatments with polymer coated urea and with urease inhibitor-treated urea reduced the volatilization of n around 50 % compared to common urea, either in the first and the second n side-dressing fertilizations. thus, they demonstrate that the polymer coat and the urease inhibitors were effective in reducing the volatilization of urea n applied in coverage, which resulted in higher productivity. there was also increasing urease activity in the treatments with application of common urea.
Risk analysis of cadmium intake by fish consumers in a sub-tropical coastal lagoon, Sepetiba Bay-SE, Brazil
Marco Aurélio Pereira Horta,Aldo Pacheco Ferreira,Antonio José Rocha Luzardo,Vincent Brignol
Revista Brasileira em Promo??o da Saúde , 2011,
Abstract: Objetivo: Estimar o risco de contamina o por cádmio (Cd) através da ingest o de peixe em popula o consumidora de pescado, na Baía de Sepetiba-SE, Brasil. Métodos: Estimouse o risco de ingest o de cádmio para os consumidores de peixe da área de estudo. Para o controle, baseou-se no consumo de peixe pela popula o brasileira, tornando possível estimar a probabilidade e risco devido à ingest o de cádmio por avalia o do quociente de perigo (HQ). Resultados: O risco para a ingest o de cádmio foi 110 vezes maior do que o encontrado no controle populacional. O HQ foi de 0,11; e quando comparado com o controle da popula o, que está localizado ao redor da área de estudo, o risco obtido foi de 0,001. O risco aumentado pode ser refletido nas doen as renais, embora estas n o tenham se mostradoassociadas à exposi o ao Cd. Conclus o: Os pescadores que trabalham na Baía de Sepetiba têm um risco cerca de 110 vezes maior de contamina o por cádmio do que a popula o que consome peixe por 48 dias por ano (média).
Desempenho na Gest o Pública do Programa Bolsa Família sob a Perspectiva de Análise do índice de Gest o Descentralizada (IGD)
Ambrozina de Abreu Pereira Silva,Marco Aurélio Marques Ferreira,Doraliza A. Abranches Monteiro
Desenvolvimento em Quest?o , 2012,
Abstract: This study aimed at verifying performance in the public management of Brazil's Bolsa Família Program (BFP) - a conditional cash transfer program - and also at identifying factors associated with efficiency and quality in the program s management in the state of Minas Gerais, Brazil. As a reference for this study, the Decentralized Management Index (DMI) acts as a financial incentive for a suitable local management of the program. A theoretical framework was developed based on the enactment and decentralization of public policies. Descriptive statistics were used as a basis to measure the local management of the BFP and the Pearson product-moment correlation procedure was used to identify factors associated with efficiency and quality in the program s management. The results show that some towns have very low performance on the DMI since they were not able to reach the minimum level for the provision of resources, which illustrates flaws in the program s management. Besides the factors adopted for developing the DMI, town size and the number of beneficiaries seem to influence the BFP quality and efficiency. Moreover, information monitoring and conditionality accompaniment mechanisms need clear improvement to ensure the population access to basic rights, such as education and healthcare, thus fulfilling with the objectives of the PBF: to reduce poverty among generations and to provide families with support to meet the fundamental rights they are entitled.
ANáLISE DE RISCO DE DOEN A GASTROINTESTINAL ASSOCIADA à PATóGENOS DE VEICULA O HíDRICA
Margarete Martins dos Santos Afonso,Cássia Regina Alves Pereira,Aldo Pacheco Ferreira,Marco Aurélio Pereira Horta
Revista Uniandrade , 2011,
Abstract: A crescente presen a de patógenos no ambiente aquático representa um dos maiores problemas de saúde pública decorrentes em grande escala de deficiências inerentes ao saneamento. A análise de risco baseou-se no método WHO (2001), com adapta es propostas por DONOVANet al. (2008), concatenando aplica es com dados sanitários da malha hídricaque desemboca na Baía de Sepetiba. O risco anual para o desenvolvimento de gastrenterites na popula o que usufruir dessa Baía é de 0,63577, que comparados aos valores da USEPA e WHO,significa ser aproximadamente 63 vezes e meia maior a probabilidade de desenvolver gastrenterites devido ao uso recreacional das águas da Baía de Sepetiba. A avalia o de risco microbiológico traz informa es sobre o risco de doen as a que est o expostas as popula es e com base nessas informa es, medidas de controle e prote o podem ser propostas para minimizar agravos significativos a popula o.
Síndrome cólica em equinos de uso militar: análise multivariável de fatores de risco
Laranjeira, Paula Vieira Evans Hossell;Almeida, Fernando Queiroz de;Lopes, Marco Aurélio Ferreira;Pereira, Maria Júlia Salim;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009000600024
Abstract: this research aimed to identify colic associated factors in horses of military units in rio de janeiro state: regimento escola de cavalaria, academia militar das agulhas negras and esquadr?o escola de cavalaria. a case control study nestled in one coorte was conducted. a total of 770 horses had been studied, with 362 (47.0%) horses classified as cases and 408 (53.0%) as control. multivariable analysis of logistic regression was used to identify colic predictive factors, showing that horses confined system creation (or= 3.62; 95% ci 2.57-5.10), concentrate intake above 6kg day-1 (or= 2.64; 95% ci 1.54-4.50) and equine age, with higher possibility of colic in horses above 16 years (or= 2.08; 95% ci 1.18-3.67), had been risk factors significantly associated with colic, after adjustment for other variables.
EFEITO ANALGéSICO DO BUTORFANOL NA DOR SOMáTICA EM GATOS ANESTESIADOS COM PROPOFOL
Araujo, Isabela Ciniello;Pompermayer, Luiz Gonzaga;Antunes, Fernanda;Souza, Almir Pereira de;Lopes, Marco Aurélio Ferreira;
Ciência Rural , 2001, DOI: 10.1590/S0103-84782001000100010
Abstract: propofol is an intravenous anesthetic agent used for induction and maintenance of anesthesia but produces limited analgesia, and concomitant use of analgesics is necessary. the analgesic effect of butorphanol in somatic pain in cats anesthetized with intermittent doses of propofol was evaluated. sixteen animals were randomly assigned to 2 groups. control group animals were premedicated with im acepromazine (0,2mg/kg) and after 15 minutes iv propofol (6mg/kg) was administered. treatment group animals were premedicated with im acepromazine (0,2mg/kg) and butorphanol (0,8mg/kg), mixed in the same syringe and after 15 minutes iv propofol (6mg/kg) was administered. in both groups anesthesia was maintained with repeated injections of propofol (3mg/kg) as needed, during 60 minutes. the need to complement propofol doses was determined by reactions to a skin pinch with a kocher hemostatic forceps.heart rate, respiratory rate, mean blood pressure, rectal body temperature and oxyhemoglobin saturation were also recorded. administration of butorphanol caused minimal changes in cardiopulmonary variables compared to control group and did not affect duration of anesthesia and total dose of propofol or recovery period. we concluded that addition of butorphanol did not produce somatic analgesia during anesthesia maintained with repeated injections of propofol in cats.
Physical and Chemical Matrix Effects in Soil Carbon Quantification Using Laser-Induced Breakdown Spectroscopy  [PDF]
Aline Segnini, Alfredo Augusto Pereira Xavier, Pedro Luís Otaviani-Junior, Edilene Cristina Ferreira, Alex Marcel Watanabe, Marco Aurélio Speran?a, Gustavo Nicolodelli, Paulino Ribeiro Villas-Boas, Patrícia Perondi Anch?o Oliveira, Débora Marcondes Bastos Pereira Milori
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.511080
Abstract: Advanced field methods of carbon (C) analysis should now be capable of providing repetitive, sequential measurements for the evaluation of spatial and temporal variation at a scale that was previously unfeasible. Some spectroscopy techniques, such as laser-induced breakdown spectroscopy (LIBS), have portable features that may potentially lead to clean and rapid alternative approaches for this purpose. The goal of this study was to quantify the C content of soils with different textures and with high iron and aluminum concentrations using LIBS. LIBS emission spectra from soil pellets were captured, and the C content was estimated (emission line of C (I) at 193.03 nm) after spectral offset and aluminum spectral interference correction. This technique is highly portable and could be ideal for providing the soil C content in a heterogeneous experiment. Dry combustion was used as a reference method, and for calibration a conventional linear model was evaluated based on soil textural classes. The correlation between reference and LIBS values showed r = 0.86 for medium-textured soils and r = 0.93 for fine-textured soils. The data showed that better correlation and lower error (14%) values were found for the fine-textured LIBS model. The limit of detection (LOD) was found to be 0.32% for medium-textured soils and 0.13% for fine-textured soils. The results indicated that LIBS quantification can be affected by the texture and chemical composition of soil. Signal treatment was shown to be very important for mitigation of these interferences and to improve quantification.
Radioprote??o, dose e risco em exames radiográficos nos seios da face de crian?as, em hospitais de Belo Horizonte, MG
Lacerda, Marco Aurélio de Sousa;Khoury, Helen Jamil;Silva, Teógenes Augusto da;Lacerda, Camila Maria de Sousa;Carmo, Alexandre Ferreira;Pereira, Márcio Tadeu;
Radiologia Brasileira , 2007, DOI: 10.1590/S0100-39842007000600010
Abstract: objective: the present study was aimed at evaluating the frequency of radiographic assessment of paranasal sinuses in pediatric patients in hospitals of belo horizonte, mg, brazil. additionally, aspects regarding radiation protection conditions and radiographic parameters were evaluated, and entrance air kerma and organ doses were estimated. materials and methods: patients' data and parameters of radiographic technique employed in the assessment of children in the age range between 1 and 16 years were collected in five examination rooms of four hospitals in belo horizonte, also taking into consideration the radiation protection aspects. entrance air kerma calculation was based on the x-ray tubes output, and organ doses were estimated with the pcxmc software. results: mean entrance air kerma values found in the five rooms were, respectively, 1398 μgy, 829 μgy, 877 μgy, 1168 μgy and 3886 μgy for patients with ages between 1 and 5 years. conclusion: most frequently, mento-naso and fronto-naso views are requested in conjunction in the majority of hospitals, which increases the radiation dose to the patients. it may be concluded that the risks for patients can be reduced by means of the utilization of an appropriate x-ray field, non-utilization of antiscattering grids, selection of high voltages and lower exposure times.
DISCURSO BUROCRáTICO E NORMATIZA O URBANA E POPULACIONAL EM CURITIBA NO INíCIO DO SéC. XX
Marco Aurélio Monteiro Pereira
Revista de História Regional , 2007,
Abstract: The article analysis the tecno-bureaucratic literature about the city and the population of Curitiba, on the two first decades of the 20th century, with the vision of formulating tactics and procedures of disciplinarization and normalization of the population and the urban environment, with the intention of obtaining its complete governamentalization. Aspects of public order, justice, criminality, and those regarding hygiene, sanitation and public health are here analyzed. O artigo analisa a literatura tecnoburocrática sobre a cidade e a popula o de Curitiba nas duas primeiras décadas do século XX, sob a ótica da formula o de táticas e procedimentos de diciplinariza o e normatiza o da popula o e do espa o urbano com o fito de atigir sua plena governamentaliza o. S o analisados aspectos das quest es afeitas à ordem pública, justi a e criminalidade, e aquelas afins à higiene, saneamento e saúde pública.
Page 1 /59076
Display every page Item


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