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Search Results: 1 - 10 of 153644 matches for " Getúlio F. Manoel "
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Rheological and Thermal Behavior of High-Density Polyethylene (HDPE) at Different Temperatures  [PDF]
Cynthia D’Avila Carvalho Erbetta, Getúlio F. Manoel, Ana Paula Lelis Rodrigues Oliveira, Maria Elisa Scarpelli Ribeiro e Silva, Roberto Fernando Souza Freitas, Ricardo Geraldo Sousa
Materials Sciences and Applications (MSA) , 2014, DOI: 10.4236/msa.2014.513094
Abstract: In the present work, rheological properties of HDPE samples were measured at temperatures of 150°C, 190°C and 230°C. It was shown, by oscillatory tests, at low frequencies, that, for temperatures of 150°C and 190°C, there was a predominance of the viscous behavior over the elastic one. At 230°C, there was a predominance of the elastic contribution, and there was an increase of the molar mass compared with the ones obtained from the tests at 150°C and 190°C. The results obtained from the temperature ramp oscillatory test showed that, up to around 248°C, the viscous behavior prevailed, the opposite being observed at higher temperatures. At 230°C the sample showed significantly lower values of strain when compared with the ones observed at 150°C and 190°C. Oxidative induction time (OIT), melting point and degree of crystallinity were determined by differential scanning calorimetry (DSC). The DSC results and the rheological measurements showed a completely different behavior for the HDPE samples at 230°C compared with the 150°C and the 190°C ones, suggesting that HDPE, at the temperature of 230°C, underwent thermo-oxidative degradation with the initial predominance of crosslinking.
Concentra??es de metais pesados em gr?os de café produzidos em lavouras sobre solos originados do basalto e do arenito Caiuá
Schmidt, Carla Adriana Pizarro;Miglioranza, édison;Nagashima, Getúlio;Grecco, Fábio;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000100
Abstract: considering that brazil is a big producer and coffee consumer its evident the importance of its characterization in the different places of cultivation. the purpose of the present study was quantify the levels of high metals in coffee grains samples 'iapar 59' derived from farming introduced in basalt and caiuá sandstone soils in paraná, brazil . thirty ground samples were examined, being 15 of predominantly arenaceous ground and 15 of argillaceous ground. the determination of chrome (cr), cobalt (co), nickel (ni), lead (pb), cadmium (cd), copper (cu), zinc (zn) and manganese (mn), was made through atomic emission spectrometry with induced plasma source with thermo 612 jarrel-ash icap e (icp-eas). the levels changed among the samples.
A cross-sectional survey in a hospital population: constitutional and environmental factors related to migraine
Arquivos de Neuro-Psiquiatria , 2000,
Getúlio Nascentes da Cunha
OPSIS : Revista do Departamento de História e Ciências Sociais , 2009,
Abstract: Dossiê: Cultura e Representa es
A Cidade do Vício e da Gra a: O consumo de tóxicos e entorpecentes no Rio de Janeiro, 1890-1930
Getúlio Nascentes da Cunha
OPSIS : Revista do Departamento de História e Ciências Sociais , 2003,
Abstract: O texto se prop e a acompanhar o crescimento do consumo de tóxicos e entorpecentes na cidade do Rio de Janeiro no início do século XX, mostrando como tal consumo passou de uma atividade marginal a uma atividade socialmente valorizada.
Maria Aldete Justiniano da F. Ferreira,Manoel Abílio de Queiróz,Jo?o Batista Duarte
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v36i2.2153
Abstract: A melancia, introduzida na regi o Nordeste do Brasil durante a escravatura, apresenta grande variabilidade genética, sendo importante o emprego de seu germoplasma em programas de pré-melhoramento. Este trabalho visou promover o prémelhoramento de uma popula o, sintetizada pelo cruzamento entre um acesso coletado no Nordeste e uma variedade comercial. As progênies, obtidas de poliniza o livre e de autofecunda o, foram avaliadas no campo com respeito à: produ o e número de frutos por planta; peso, diametro longitudinal, diametro transversal e formato de fruto; espessura, cor e teor de sólidos solúveis da polpa; número e peso de cem sementes. O potencial da popula o em produzir linhagens promissoras foi avaliado conforme o grau de depress o endogamica e a resposta para os caracteres produ o de frutos por planta, cor e teor de sólidos solúveis da polpa. A maioria das progênies foi superior às testemunhas para os caracteres relacionados à produ o de frutos. Em média, a depress o endogamica n o foi drástica, contudo em algumas progênies obteve-se um efeito equivalente ao que ocorre em popula es de espécies estritamente alógamas. Em 9,4% das progênies de poliniza o livre, a produ o de frutos por planta, o teor de sólidos solúveis e a cor da polpa, foram superiores à média da popula o. PALAVRAS-CHAVE: Citrullus lanatus; germoplasma; depress o endogamica; cor da polpa; teor de a úcar. The watermelon introduced in the Northeast of Brazil during the slavery period, presents great genetic variability. This germplasm is important in pre-breeding programs. This work aimed to perform pre-breeding work in a population synthesized by crossing an accession collected access in the Northeast of Brazil and a commercial variety. Maternal and selfed progenies were obtained from the population. They were evaluated for: yield and number of fruits per plant; fruit weight, format, longitudinal and transversal diameter; flesh thickness, colour and sugar content; number and weight of one hundred seeds per fruit. The genetic potential of the population for watermelon improvement has been evaluated according to the inbreeding depression and the yield of fruits per plant, flesh color and sugar content. The most of progenies was superior to the check for the traits related with fruit yield. In average, the inbreeding depression was not drastic, however in some progenies it had an effect equivalent to that occurs in allogamous population. In 9,4% of maternal progenies the yield of fruits per plant, the sugar content and the flesh color had been superior to the average of the
Applied aspects of pineapple flowering
Cunha, Getúlio Augusto Pinto da;
Bragantia , 2005, DOI: 10.1590/S0006-87052005000400001
Abstract: flowering is an amazing, integrated and complex process of multifatorial control, which due to its great importance for agriculture has been extensively studied worldwide. pineapple is one of the main crops on which many research works about this subject have been carried out, and it was the first one to have artificially induced flowering. however, even with all those studies, pineapple flowering is not yet characterized in many aspects. the main point for the comprehension of the physiologic aspects of flowering initiation is the identification of the factors involved in the differentiation of the apical meristem into floral primordium, as well as how these factors exert their action. this work aimed to describe the flowering process of pineapple plants, including notions about general flowering physiology, pineapple inflorescence, natural and artificial flowering. flowering relation to several chemical substances which are involved with the vegetative growth of the plant are also discussed, in order to bring out more light on its underlying mechanisms, and also to help in crop management.
Bases teóricas para a implementa??o do aprendizado orientado por problemas na residência médica em anestesiologia
Oliveira Filho, Getúlio Rodrigues de;
Revista Brasileira de Anestesiologia , 2003, DOI: 10.1590/S0034-70942003000200015
Abstract: background and objectives: problem-oriented learning (pol) is a teaching method the primary objective of which is the accumulation of medical concepts in the context of clinical problems, and which has been widely used in medical graduation since the 60s. pol is based on the information processing theory where acquisition of new knowledge is made easier by activating preexisting knowledge about the subject, by the similarity between learning contexts and knowledge application and by information improvement. other theories have been evoked to justify pol method in medical teaching and in other areas. the pol method uses adult teaching concepts applied to medical learning episodes. contents: this article describes the pol method, its theoretical and psychological basis, the role of professors and students in the process and suggestions for its implementation. conclusions: as compared to traditional methods, pol has as major advantages a higher level of students and professors satisfaction, a wider source of queries and search for knowledge and more time spent with individual learning. since the method has no disadvantages as compared to traditional methods, it could be considered a valid alternative for teaching anesthesiology in medical residency programs.
Rotinas de cuidados pós-anestésicos de anestesiologistas brasileiros
Oliveira Filho, Getúlio Rodrigues de;
Revista Brasileira de Anestesiologia , 2003, DOI: 10.1590/S0034-70942003000400012
Abstract: background and objectives: there are no data on postanesthetic care units (pacu) equipment, monitoring routines and discharge criteria adopted by brazilian anesthesiologists. this study aimed at obtaining such data. methods: a nationwide survey was conducted with a random sample of 1123 anesthesiologists. data were analyzed by simple and cross tabulation and logistic regression. results: two hundred seventy-one questionnaires (26.59%) were analyzed. the study showed that most anesthesiologists work in institutions with pacus equipped with resuscitation equipment, oxygen sources, aspirators, cardioscopes, pulse oximeters and with an anesthesiologist on duty. neuromuscular function monitors and active heating devices are less frequent. in a descending order of frequency, the following parameters are routinely monitored: blood pressure, heart rate, spo2, consciousness level, airway patency, respiratory rate, nausea and vomiting, postoperative pain and muscle strength. oxygen therapy, anti-emetics and postanesthetic shivering control are prescribed on a routine or selective basis by most anesthesiologists who also record postoperative data. conclusions: this study suggests that brazilian anesthesiologists are concerned about patients? safety during postanesthetic recovery, as shown by high equipment availability in the pacu and expressive routine monitoring ratios of isolated parameters. some monitoring routines should be implemented to comply with new guidelines on postanesthetic care and new discharge criteria for outpatient procedures.
Rotinas de cuidados pós-anestésicos de anestesiologistas brasileiros
Oliveira Filho Getúlio Rodrigues de
Revista Brasileira de Anestesiologia , 2003,
Abstract: JUSTIFICATIVA E OBJETIVOS: N o existem dados sobre a disponibilidade de equipamentos nas Salas de Recupera o Pós-Anestésica (SRPA), as rotinas de monitoriza o e os critérios de alta pós-anestésica utilizados pelos anestesiologistas brasileiros. Este estudo visou obter estas informa es. MéTODO: Foi pesquisada uma amostra aleatória de 1123 anestesiologistas. Os dados foram analisados por tabula o simples e cruzada e por regress o logística. RESULTADOS: Foram analisados 271 questionários (26,59%). O estudo revelou que a maioria dos anestesiologistas atua em institui es que possuem SRPA equipadas com dispositivos de reanima o, fontes de oxigênio, aspiradores, cardioscópios, oxímetros de pulso e que mantêm anestesiologista de plant o. A existência de monitores de fun o neuromuscular e dispositivos de aquecimento ativo é menos freqüente. Em ordem decrescente de freqüência, s o monitorizados rotineiramente a press o arterial, a freqüência cardíaca, a SpO2, o nível de consciência, a patência das vias aéreas, a freqüência respiratória, as náuseas e v mitos, a dor pós-operatória e a for a muscular. A oxigenioterapia, os antieméticos e o tratamento de calafrios pós-operatórios s o administrados rotineiramente ou a pacientes selecionados pela maioria dos anestesiologistas. A maioria dos anestesiologistas registra os dados pós-anestésicos. CONCLUS ES: Este estudo sugere que os anestesiologistas brasileiros preocupam-se com a seguran a dos pacientes no período pós-anestésico imediato, conforme atestam a elevada disponibilidade de equipamentos e os percentuais expressivos de monitoriza o de parametros isolados. Algumas rotinas de monitoriza o precisam ser implementadas de acordo com as novas diretrizes de cuidados pós-anestésicos e os novos critérios de alta para pacientes ambulatoriais.
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