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Search Results: 1 - 10 of 134823 matches for " Maria Thereza Ribeiro da Costa;Miranda "
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Environmental sensitivity index (ESI) mapping of oil spill in the amazon coastal zone: the PIATAM Mar project
Souza Filho, Pedro Walfir M. e;Prost, Maria Thereza Ribeiro da Costa;Miranda, Fernando Pellon de;Sales, Maria Emília Cruz;Borges, Heloisa Vargas;Costa, Francisco Ribeiro da;Almeida, Edson Faria de;Nascimento Junior, Wilson da Rocha;
Revista Brasileira de Geofísica , 2009, DOI: 10.1590/S0102-261X2009000500002
Abstract: the importance of environmental monitoring is clear from the many oil spills that have occurred over the past three decades. this has encouraged both companies and the public sector involved in the prevention and response to these accidents to develop efficient procedures to minimize the damage caused by accidents involving oil spill. this study reviews the history of oil spill accidents in brazil and examines how these events have contributed to the development of technological research through partnerships involving oil companies, government, universities and research institutes, with the emphasis on the amazon coastal zone. as a result, environmental sensitivity indexes (esis) for oil spill have been developed specifically for the amazon coast, where fluvial and marine processes take place in the estuary of the world's largest river system. perspectives on research and emergency response procedures are presented, with the primary objective of conserving the social-environmental diversity of the planet's most important tropical region.
Polyphenol Oxidase Activity and Colour Changes of ‘Starking’ Apple Cubes Coated with Alginate and Dehydrated with Air  [PDF]
Susana Daniela Sousa Fernandes, Catarina Araújo da Silva Ribeiro, Maria Filomena de Jesus Raposo, Rui Manuel Santos Costa de Morais, Alcina Maria Miranda Bernardo de Morais
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.25064
Abstract: The objective was to study the effect of alginate coating on polyphenol oxidase (PPO) activity and colour of ‘Starking’ apple cubes during dehydration with hot air. Apple cubes were dehydrated at 20oC, 35oC, or 40oC, with a parallel airflow. Analysis of PPO activity, colour (L*, a*, b*) and dry matter were performed along the dehydration process at each temperature. All samples presented a peak in relative PPO activity in the beginning of the drying. Exponential models fitted well the experimental data after the peak. Cubes without coating presented lower PPO activity, suggesting lower browning, than coated samples throughout the dehydration process, for all temperatures. Better results for coated samples were obtained with a perpendicular airflow drying at 40oC, after dipping the whole apple in water at 60oC for 10 min. In order to prevent coated samples from browning, drying by perpendicular airflow preceded by a thermal treatment of the whole apple is required.
Variabilidade sazonal da condutancia estomática em um ecossistema de manguezal amaz?nico e suas rela??es com variáveis meteorológicas
Rodrigues, Hernani José Braz?o;Costa, Rafael Ferreira da;Ribeiro, Jo?o Batista Miranda;Souza Filho, José Danilo da Costa;Ruivo, Maria de Lourdes Pinheiro;Silva Júnior, Jo?o de Athaydes;
Revista Brasileira de Meteorologia , 2011, DOI: 10.1590/S0102-77862011000200003
Abstract: this work investigated the variations of stomatal conductance (gs) in the rainy and dry seasons and its dependence relations with meteorological variables measured in an amazonian mangrove ecosystem. data were originated from the ecobioma project, part of the large scale biosphere-atmosphere experiment in amazon (lba). stomatal conductance followed the tendency of the radiation balance variation, reaching maximum values during the day and minimum values at night. the conductance showed greater fluctuations in the rainy season, with mean value of gs = 0.015 m s-1, however smaller in magnitude than in the dry season. during the dry season, the mean value was gs = 0.027 m s-1, with lower range, varying between 0.010 and 0.042 m s-1. the meteorological variables used for establishing the dependence relations with the daily variability of stomatal conductance were the following; specific moisture deficit (δq), vapor pressure deficit (pvd), net radiation (rn) and wind velocity (vv). the pvd showed the best correlation with gs, with r2 = 0.99 for both periods. in spite of the importance of vv in the gaseous changes between the vegetation and the atmosphere, it presented the smallest influence in the mean variation of the gs, with r2 = 0,44 for the rainy and r2 =0,51 for the dry period.
Detec??o de aglomerados espaciais de casos de neoplasia mamária em c?es no município de Salvador, Bahia
Toríbio, Júlia Morena de Miranda Le?o;Costa Neto, Jo?o Moreira da;Bavia, Maria Emília;Lima, Alessandra Estrela da Silva;Cardim, Luciana Lobato;Carneiro, Deborah Daniela Madureira Trabuco;Martins Filho, Emanoel Ferreira;Ribeiro, Lorena Gabriela Rocha;
Ciência Rural , 2012, DOI: 10.1590/S0103-84782012000100016
Abstract: spontaneous mammary tumors represent the most frequent type of cancer in canines, accounting for approximately 50% of all neoplasms. the majority of scientific papers cited in the literature are limited to non refined epidemiological data, without mentioning the trend of this disease in generating clusters in a given geographical area. in this context, this research aimed to create thematic maps of spatial distribution of mammary neoplasms in bitches and to identify disease clusters for the city of salvador, bahia. trough the spatial analysis scanning, it was found that cases of breast cancer is not evenly distributed in the municipality. a significant primary cluster was detected (p>0,001) covering 67.3% of the studied cases. considering the gap in literature available in this field, it is believed that such results will become very important, especially in leading to new studies, where intrinsic and extrinsic variables regarding the animal must be taken into consideration and analyzed for factors risk identification to formulate educational plans targeting the promotion of animal welfare.
Análise do atraso no diagnóstico e tratamento do cancer de mama em um hospital público
Trufelli, Damila Cristina;Miranda, Vanessa da Costa;Santos, Maria Beatriz Brisola dos;Fraile, Natália Moreno Perez;Pecoroni, Priscilla Guedes;Gonzaga, Suzana de Fran?a Ribeiro;Riechelmann, Rachel;Kaliks, Rafael;Del Giglio, Auro;
Revista da Associa??o Médica Brasileira , 2008, DOI: 10.1590/S0104-42302008000100024
Abstract: background: to identify potential delays in the management of patients with breast cancer examined at a public hospital, from time of suspicion until diagnosis and beginning of treatment. methods: retrospective study which analyzed data related to time elapsed in different intervals between suspicion, diagnosis and onset of systemic cancer-directed treatments, of consecutive breast cancer patients cared for at the medical oncology clinic of the mario covas hospital during 2006. results: sixty-eight women, with a mean age of 56.3 years (standard deviation: 12.2 years), were included. of all the intervals, the longest delay occurred between the mammographic suspicion of cancer and performance of biopsy (median of 72 days, range: 4 - 1095 days); this was significantly longer (p<0.001) than in the other intervals analyzed. furthermore, this interval in particular, was significantly longer in patients with advanced stage breast cancer when compared to those at the initial stage (p=0.014). conclusion: breast cancer patients treated in a public hospital in brazil suffer delays, especially during the diagnosis of their disease. minimizing the time between mammography and biopsy of suspicious lesions appears to be the most crintical step to correct this situation.
Correlations of mutations in katG, oxyR-ahpC and inhA genes and in vitro susceptibility in Mycobacterium tuberculosis clinical strains segregated by spoligotype families from tuberculosis prevalent countries in South America
Elis R Dalla Costa, Marta O Ribeiro, Márcia SN Silva, Liane S Arnold, Diana C Rostirolla, Patricia I Cafrune, Roger C Espinoza, Moises Palaci, Maria A Telles, Viviana Ritacco, Philip N Suffys, Maria L Lopes, Creuza L Campelo, Silvana S Miranda, Kristin Kremer, Pedro da Silva, Leila Fonseca, John L Ho, Afranio L Kritski, Maria LR Rossetti
BMC Microbiology , 2009, DOI: 10.1186/1471-2180-9-39
Abstract: We, therefore, conducted a comprehensive evaluation of INH resistant M. tuberculosis strains (n = 224) from three South American countries with high burden of drug resistant TB to characterize mutations in katG, ahpC and inhA gene loci and correlate with minimal inhibitory concentrations (MIC) levels and spoligotype strain family. Mutations in katG were observed in 181 (80.8%) of the isolates of which 178 (98.3%) was contributed by the katG S315T mutation. Additional mutations seen included oxyR-ahpC; inhA regulatory region and inhA structural gene. The S315T katG mutation was significantly more likely to be associated with MIC for INH ≥2 μg/mL. The S315T katG mutation was also more frequent in Haarlem family strains than LAM (n = 81) and T strain families.Our data suggests that genetic screening for the S315T katG mutation may provide rapid information for anti-TB regimen selection, epidemiological monitoring of INH resistance and, possibly, to track transmission of INH resistant strains.Tuberculosis (TB), a curable disease caused by M. tuberculosis, has never been adequately controlled in high prevalence countries because of inadequate funding of public health programs and limited access to health care caused by poverty. In the last several decades, the concurrent HIV epidemic has further accentuated the magnitude of the global TB burden. Further complicating the TB resurgence is the recent increase in the occurrence of simultaneous resistance to first line drugs, isoniazid (INH) and rifampin (RIF), that defines multidrug resistance (MDR), as well as, to second line drugs, resulting in extensive drug resistance (XDR) [1,2]. Although current control measures and short-term treatment schemes address the problem of drug resistance, knowledge on individual drug resistance profiles is needed for targeted intervention [3]. Global surveillance of M. tuberculosis drug resistance has been proposed to guide appropriate treatment policies [4]. Brazil and Peru are responsible
Risk Factors for Mortality in Hemodialysis Patients: Two-Year Follow-Up Study
Maria do Sameiro-Faria,Sandra Ribeiro,Elísio Costa,Denisa Mendon?a,Laetitia Teixeira,Petronila Rocha-Pereira,Jo?o Fernandes,Henrique Nascimento,Michaela Kohlova,Flávio Reis,Leonilde Amado,Elsa Bronze-da-Rocha,Vasco Miranda,Alexandre Quintanilha,Luís Belo,Alice Santos-Silva
Disease Markers , 2013, DOI: 10.1155/2013/518945
Abstract: Background. End-stage renal disease (ESRD) patients under hemodialysis (HD) have high mortality rate. Inflammation, dyslipidemia, disturbances in erythropoiesis, iron metabolism, endothelial function, and nutritional status have been reported in these patients. Our aim was to identify any significant association of death with these disturbances, by performing a two-year follow-up study. Methods and Results. A large set of data was obtained from 189 HD patients (55.0% male; 66.4 ± 13.9 years old), including hematological data, lipid profile, iron metabolism, nutritional, inflammatory, and endothelial (dys)function markers, and dialysis adequacy. Results. 35 patients (18.5%) died along the follow-up period. Our data showed that the type of vascular access, C-reactive protein (CRP), and triglycerides (TG) are significant predictors of death. The risk of death was higher in patients using central venous catheter (CVC) (Hazard ratio [HR] =3.03, 95% CI = 1.49–6.13), with higher CRP levels (fourth quartile), compared with those with lower levels (first quartile) (HR = 17.3, 95% CI = 2.40–124.9). Patients with higher TG levels (fourth quartile) presented a lower risk of death, compared with those with the lower TG levels (first quartile) (HR = 0.18, 95% CI = 0.05–0.58). Conclusions. The use of CVC, high CRP, and low TG values seem to be independent risk factors for mortality in HD patients. 1. Introduction Patients with end-stage renal disease (ESRD) have a high mortality rate [1, 2] that far exceeds the mortality rate for the non-ESRD population [3]. In the past half-century, the widespread use of hemodialysis (HD) to prolong life of ESRD patients has been a remarkable achievement, preventing death from uremia in these patients. Nowadays this therapy has expanded widely and is being used by an increasing elderly patient population, leading to significant economic consequences to patients and to healthcare systems. Our present knowledge of the mechanisms leading to increased death in this context is incomplete. In the last years, this medical field has known significant technological and pharmacological improvements. Although some evidence may suggest that mortality rate among dialysis patients has decreased over the last few years, actually, patient’s survival is still low. Cardiovascular disease (CVD) has been considered the most common cause of death in these patients [4]. Cardiac arrest and congestive heart failure are more prominent causes of cardiovascular death than acute myocardial infarction in patients with uremia. A higher mortality rate within the
M bius Syndrome: characterization of children treated in an institution in Fortaleza-CE
Ismênia de Carvalho Brasileiro,Adriana Mary Nunes Costa,Milena Santos da Costa,Thereza Maria Magalh?es Moreira
Revista Brasileira em Promo??o da Saúde , 2012,
Abstract: Objective: To describe the socio-demographic and clinical characteristics of a group of children with M bius syndrome. Methods: The quantitative, descriptive, documentary and transversal research, was performed at an early intervention medical institution in the city of Fortaleza-CE, Brazil in 2009. Results: The analysis of nine children in attendance revealed that their mothers were pregnant at the early average age of 24, with stable relationships,half of them graduated from high school and the other half, from fundamental school. Most families (77.8%) had a monthly income below the minimum wage. All children were born at term, the majority by cesarean section (77.8%). Neonatal intercurrences were verified in77.8% of children, which justified their early introduction to the counseling center for child development. Regarding the peculiar characteristics of the syndrome, facial palsy, clubfeetand hypotonia were present in all cases, and strabismus in 88.9% of them. An amount of 55.6% of children showed other abnormalities, such as lack of fingers and toes. Cytotec had been used as a measure to terminate pregnancy in 55.6% of cases. Conclusion: Childrenwith M bius are mostly born from mothers which underwent full term pregnancies, living up with monthly minimum wage, in stable relationships. Although being born at term, the children went through neonatal complications. Bilateral facial palsy, strabismus, club feet,and hypotonia were the most related clinical characteristics.
Universidade e a extens?o universitária: a vis?o dos moradores das comunidades circunvizinhas
Fernandes, Marcelo Costa;Silva, Lucilane Maria Sales da;Machado, Ana Larissa Gomes;Moreira, Thereza Maria Magalh?es;
Educa??o em Revista , 2012, DOI: 10.1590/S0102-46982012000400007
Abstract: the university is an institution created to meet the needs of the country. one of the strategies that the university uses to train a professional citizen is based on the university extension. the purpose of this study was to investigate the existing relationship between a university and its surrounding communities from the perspective of its inhabitants. descriptive qualitative methodology was used in the research. it was held in fortaleza, state of ceara. the research population consisted of community residents. the study began after the project was approved by the research ethics committee. results were divided into five categories to better organize the discussion. it was possible to observe that university extension plays a key role in the brazilian higher education, mainly in the formation of integration between community and university, aiming at a major transformation of our social reality.
Universidade e a extens o universitária: a vis o dos moradores das comunidades circunvizinhas University and university extension: the view of the residents from surrounding communities
Marcelo Costa Fernandes,Lucilane Maria Sales da Silva,Ana Larissa Gomes Machado,Thereza Maria Magalh?es Moreira
Educa??o em Revista , 2012,
Abstract: A universidade é uma institui o criada para atender às necessidades do país. Uma das estratégias que a universidade utiliza para a forma o de um profissional cidad o é baseada na extens o universitária. Objetivou-se no estudo investigar a rela o atual existente entre uma universidade e as comunidades circunvizinhas a partir da vis o dos seus moradores. A pesquisa é de natureza descritiva com abordagem qualitativa. Foi realizada no município de Fortaleza-CE. A popula o da pesquisa foi constituída por moradores da comunidade. O estudo teve início após a aprova o do projeto pelo Comitê de ética em Pesquisa. Os resultados foram divididos em cinco categorias para uma melhor organiza o da discuss o dos resultados. Percebeu-se que a extens o universitária possui uma fun o essencial no ensino superior brasileiro principalmente para a forma o de uma integra o entre a comunidade e a universidade, objetivando, com isso, uma maior transforma o de nossa realidade social. The university is an institution created to meet the needs of the country. One of the strategies that the university uses to train a professional citizen is based on the university extension. The purpose of this study was to investigate the existing relationship between a university and its surrounding communities from the perspective of its inhabitants. Descriptive qualitative methodology was used in the research. It was held in Fortaleza, State of Ceara. The research population consisted of community residents. The study began after the project was approved by the Research Ethics Committee. Results were divided into five categories to better organize the discussion. It was possible to observe that university extension plays a key role in the Brazilian higher education, mainly in the formation of integration between community and university, aiming at a major transformation of our social reality.
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