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An Analysis of Minor Hysteresis Loops Behavior under PWM Voltage - Electromagnetic Device at No-Load and Loaded Conditions
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Elias, Ricardo de A.

; Wengerkievicz, Carlos A. C.

; Souza Reis, Guilherme H.

; Sadowski, Nelson

; Batistela, Nelson J.

; Bastos, João Pedro A.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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dec 2021, Volume 20 N. 4 Pages 745 - 762

Abstract: En | Text: En | PDF: En

Abstract This paper addresses the influence of the primary and secondary resistances on the behavior of minor hysteresis loops when the electromagnetic device is fed by three-level PWM (pulse width modulation) voltage. To study the device transferring energy to a load, the experimental approaches are different of traditional procedures to material characterization, where problems inherent to the process are added. Analytical, FEM and experimental analysis are performed on a toroidal transformer equipped with a flux sensing coil. The leakage fluxes related to the primary and secondary currents are shown to cause errors in the measurement of the core magnetization current. A solution to mitigate this problem is employed, consisting in twisting and winding together primary and secondary conductors. Experimental methodologies for obtaining the value of the iron losses when the device is transferring energy to a load are also performed. The study shown showed that supply voltage with three-level PWM waveform causes minor hysteresis loops and the greater the resistance value of the excitation winding, the larger the areas of the minor hysteresis loops. On the other hand, by increasing the energy transferring to a load the minor loops areas tend to decrease.

https://doi.org/10.1590/2179-10742021v20i4254768

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
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Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

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dec 2021, Volume 36 N. 6 Pages 725 - 735

Abstract: En | Text: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

Resilience to climate change in Fundo de Pasto Communities in the semiarid region of Bahia State, Brazil
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Gaivizzo, Larisa Ho Bech

; Litre, Gabriela

; Ferreira, Julia Lopes

; Silva, Romero Gomes Pereira da

; Soares, Daniela Nogueira

; Reis, Rafael Moraes

; Almeida, Ana Claudia

; Davalos, Nelson Eduardo Bernal

; Mendes, Priscylla Dayse Almeida Gonçalves

; Lindoso, Diego Pereira

; Brito, Adriane Michels

; Rodrigues-Filho, Saulo

; Saito, Carlos Hiroo

Sociedade & Natureza

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2019, Volume 31 elocation e46331

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract The objective of this study was to determine how to support actions to increase the resilience and adaptation of socio-ecological systems in the semiarid region of Bahia State, focusing on the Fundo de Pasto Communities (FPCs) of the Uauá municipality. Primary (semistructured interviews with decision-makers and community leaders) and secondary data sources were used. Five dimensions of analysis were selected to organize the primary data within a framework of adaptive capacity for climate change: territorial, socio-cultural, environmental, economic and politico-institutional. For approximately 200 years, FPCs have been communally occupying and using the Caatinga biome based on agrosilvopastoral systems. The results showed the communities’ resilience in dealing with climate stresses in both the territorial and socio-cultural dimensions. This includes processes of self-organization in associations and in networks, which facilitate the flow of knowledge and collective decision-making processes. The results also identified the environmental, economic and politico-institutional dimensions of the climate risks to FPCs, which could potentially limit their adaptive capacity.

Resumo A pesquisa realizada entre 2017 e 2018 buscou produzir conhecimentos que subsidiem ações voltadas à resiliência e à adaptação de sistemas socioecológicos na região semiárida do estado da Bahia - Semiárido Baiano, com foco nas Comunidades de Fundo de Pasto (CFP) localizadas no município de Uauá. Utilizaram-se dados secundários e primários (entrevistas semiestruturadas com tomadores de decisão e lideranças comunitárias). Para a sistematização dos dados primários no marco de capacidades adaptativas para mudanças climáticas foram selecionadas cinco dimensões de análise: territorial, sociocultural, ambiental, econômica e político-institucional. As CFP ocupam e usam o bioma Caatinga há cerca de 200 anos de forma comunal, com base em sistemas agrossilvopastoris. Os resultados indicaram o caráter resiliente das comunidades para lidar com os estresses climáticos nas dimensões territorial e sociocultural, a partir de processos de auto-organização em associações e na organização em redes, por meio das quais fluem conhecimentos e são tomadas decisões coletivas. Os resultados também indicaram os riscos climáticos aos quais as CFP estão expostas nas dimensões ambiental, econômica e político-institucional, com potencial para limitar capacidades adaptativas.

https://doi.org/10.14393/sn-v31-2019-46331

Strategic Social Action Plan for MERCOSUR: Income transfer programs in the context of a neoliberal offensive
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Guilherme, Rosilaine Coradini

; Reis, Carlos Nelson dos

Revista Katálysis

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jan 2018, Volume 21 N. 1 Pages 117 - 124

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Este ensaio desenvolve análise a respeito do Plano Estratégico de Ação Social (PEAS) do Mercado Comum do Sul (MERCOSUL), a partir da sua relação com os Objetivos de Desenvolvimento do Milênio, o que significa articular a reflexão ao contexto de ofensiva neoliberal na América Latina. Epistemologicamente o estudo se embasa no método dialético-crítico, envolvendo uma pesquisa exploratória, cujo levantamento dos dados se baseia em fontes documental e bibliográfica. Em decorrência, se evidenciou uma agenda social cujo foco envolve constituir uma porta de saída ou a emancipação sustentada das famílias, por meio das capacitações dos indivíduos que tem como aporte a teoria do capital humano e a ideologia neoliberal. Desse modo, o escopo do estudo pressupõe explicitar os conteúdos dos processos históricos e as concepções teóricas que permeiam as proposições contidas no PEAS, no sentido de impulsionar o debate acerca do tema.

Abstract This article analyzes the Strategic Social Action Plan for the Common Market of the South (MERCOSUR), based on its relationship with the Millennium Development Goals, which means articulating the reflection to the context of the neoliberal offensive in Latin America. Epistemologically the study is based on the dialectical-critical method, involving exploratory research, with a survey of documentary and bibliographic sources. This research revealed that the focus of the social agenda is the establishment of an exit door or the sustained emancipation of families, by means of individual training, based on the theory of human capital and neoliberal ideology. The scope of the study presupposes presenting the contents of the historic processes and the theoretical concepts that permeate the proposals contained in the Strategic Plan, to stimulate the debate about the issue.

https://doi.org/10.1590/1982-02592018v21n1p108 1223 downloads

Cross-amplification of heterologous microsatellite markers in Piracanjuba
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Castro, Pedro Luiz de

; Ribeiro, Ricardo Pereira

; Santos, Silvio Carlos Alves dos

; Goes, Elenice Souza dos Reis

; Souza, Felipe Pinheiro de

; Poveda-Parra, Angela Rocio

; Vargas, Lauro

; Urrea-Rojas, Angela Maria

; Lopera-Barrero, Nelson Mauricio

Ciência Rural

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dec 2017, Volume 47 N. 12 elocation e20170374

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A piracanjuba (Brycon orbignyanus) é um peixe de grande valor econômico que nos últimos anos tem apresentado uma redução drástica em suas populações naturais. Nesse contexto, estudos de variabilidade genética dos estoques naturais e nos programas de repovoamento são fundamentais para adoção de medidas conservacionistas. O objetivo do presente trabalho foi verificar a amplificação cruzada de primers heterologos em B. orbignyanus. Foram avaliados um total de 52 primers das espécies Brycon opalinus, Brycon hilarii, Brycon insignis, Prochilodus sp., Piaractus mesopotamicus, Colossoma macropomum e Oreochromis niloticus. Os primers com melhor reprodutibilidade foram aplicados a uma amostra de 20 indivíduos e os parâmetros genéticos foram calculados. Nove primers apresentaram resultados satisfatórios de amplificação cruzada com B. orbignyanus, sendo das espécies Brycon opalinus (BoM5 e BoM13), Brycon hilarii (Bh5, Bh6, Bh8, Bh13 e Bh16), Brycon insignis (Bc48-10) e Prochilodus argenteus (Par80). Os primers de Piaractus mesopotamicus, Colossoma macropomum e Oreochromis niloticus não apresentaram amplificação ou apresentaram inespecificidade. Os resultados revelaram a possibilidade da utilização de primers de diferentes espécies e gênero em B. orbignyanus, o que facilita a realização de estudos genéticos nessa espécie.

ABSTRACT: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years. In this context, genetic variability studies of natural stocks and in restocking programs are fundamental for the adoption of conservation measures. Current analysis verifies the cross-amplification of heterologous primers in B. orbignyanus. Fifty-two primers of the species Brycon opalinus, Brycon hilarii, Brycon insignis, Prochilodus sp., Piaractus mesopotamicus, Colossoma macropomum and Oreochromis niloticus were tested. Primers with the best reproducibility were applied to a sample of 20 individuals and the genetic parameters were calculated. Nine primers provided good results for cross-amplification with B. orbignyanus, involving (BoM5 and BoM13) of Brycon opalinus, (Bh5, Bh6, Bh8, Bh13 and Bh16) of Brycon hilarii, (Bc48-10) of Brycon insignis and (Par80) of Prochilodus argenteus. Primers of Piaractus mesopotamicus, Colossoma macropomum and Oreochromis niloticus failed to provide amplification or provided non-specificity. Results demonstrated the possibility of using primers of different species and genera of B. orbignyanus, facilitating genetic studies on the species.

https://doi.org/10.1590/0103-8478cr20170374 1280 downloads

Juventude latino-americana e mercado de trabalho: programas de capacitação e inserção
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Dornelles, Aline Espindola

; Panozzo, Vanessa Maria

; Reis, Carlos Nelson dos

Revista Katálysis

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jun 2016, Volume 19 N. 1 Pages 81 - 90

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O presente artigo sintetiza os resultados da pesquisa que analisou o conteúdo dos programas sociais vigentes na América Latina como uma das respostas construídas para as Metas de Desenvolvimento do Milênio. A pesquisa quantitativa e qualitativa observou especificamente os programas sociais de capacitação e inserção vigentes para a juventude nos países da Região, mapeando as experiências e explicitando suas características a partir de 1990. A pesquisa indica a caracterização da inserção do jovem em trabalhos informais, sem proteção social, com aumento nas taxas de desemprego e sem nenhuma estabilidade no trabalho. Nesses países há um número significativo de propostas privadas em parceria com a sociedade civil, ao invés de um investimento qualificado na consolidação de estruturas para a população jovem.

Abstract This article synthesizes the results of a study that analyzed the content of current social programs in Latin America as some of the responses constructed to respond to the Millennium Development Goals. The quantitative and qualitative study specifically observed social programs for training and insertion of youth in countries in the region, mapping the experiences and presenting their characteristics since 1990. The study found the insertion of youth in informal work, without social protection, and an increase in unemployment rates and a lack of employment stability. In these countries, there is a significant number of private programs in partnership with civil society, instead of a qualified investment in the consolidation of structures for the youth population.

https://doi.org/10.1590/1414-49802016.00100009 2309 downloads

Loss of TIMP-1 immune expression and tumor recurrence in localized prostate cancer
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Reis, Sabrina Thalita dos

; Viana, Nayara Izabel

; Iscaife, Alexandre

; Pontes Junior, José

; Dip, Nelson

; Antunes, Alberto Azoubel

; Guimarães, Vanessa Ribeiro

; Santana, Isaque

; Nahas, William Carlos

; Srougi, Miguel

; Leite, Katia Ramos Moreira

International braz j urol

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dec 2015, Volume 41 N. 6 Pages 1088 - 1095

Abstract: En | Text: En | PDF: En

Introduction and objective: Overexpression of MMPs has been related to biochemical recurrence after radical prostatectomy. TIMP1 and TIMP2 are controllers of MMPs and the aim of this study is to evaluate the expression levels of MMPs and their regulators using immunohistochemistry in tissue microarray of localized prostate cancer (PC). Materials and Methods: Immune-expression of MMP-9, MMP-2, TIMP1, TIMP-2, MMP-14 and IL8, were analyzed by immunohistochemistry in radical prostatectomy specimens of 40 patients with localized PC who underwent surgery between September 1997 and February 2000. Protein expression was considered as categorical variables, negative or positive. The results of the immune-expression were correlated to Gleason score (GS), pathological stage (TNM), pre-operatory PSA serum levels and biochemical recurrence in a mean follow up period of 92.5 months. Results: The loss of TIMP1 immune-expression was related to biochemical recurrence. When TIMP1 was negative, 56.3% patients recurred versus 22.2% of those whose TIMP1 was positive (p=0.042). MMP-9, MMP-2, IL8 and MMP-14 were positive in the majority of PC. TIMP-2 was negative in all cases. Conclusion: Negative immune-expression of TIMP1 is correlated with biochemical recurrence in patients with PC possibly by failing to control MMP-9, an important MMP related to cancer progression.

https://doi.org/10.1590/S1677-5538.IBJU.2014.0451 1060 downloads

Carlos Nelson Coutinho: a hegemonia como contrato
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Meneses, Jaldes Reis de

Serviço Social & Sociedade

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dec 2013, N. 116 Pages 675 - 699

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Este artigo propõe-se a examinar a originalidade do pensamento político marxista do filósofo brasileiro Carlos Nelson Coutinho (1943-2012), recentemente falecido. O mais audacioso projeto do autor brasileiro em teoria política, sugerido em uma série de ensaios, e na justaposição das démarches teóricas de Gramsci e Lukács, foi o de abordar a questão da hegemonia como contrato. Não se trata de uma abordagem comum: na tradição canônica da filosofia política, hegemonia e contrato atendem a tradições distintas e vistas em geral como antagônicas, respectivamente o realismo político e o contratualismo.

This article aims at examining the originality of the political Marxist thought of the Brazilian philosopher Carlos Nelson Coutinho (1943-2012), who died recently. This author's most daring project on political theory was to approach the issue of hegemony as a contract. Such a project was suggested in a series of essays, and it is in the juxtaposition of Gramsci and Lukács's theoretical démarches. It is not a common approach: in the canonical tradition of political philosophy, hegemony and contract are related to different traditions which are usually seen as opposite ones - political realism and contractualism, respectively.

15930 downloads

Gerenciamento da dor na Síndrome Pós-poliomielite: estudo de caso
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Orsini, Marco

; Kale Júnior, Nelson

; Mello, Mariana Pimentel

; Machado, Dionis

; Bastos, Victor Hugo

; Joppert, Daniel

; Reis, Carlos Henrique Melo

; Silva, Júlio Guilherme

; Oliveira, Acary Bulle

; Menezes, Sara Lúcia de

; Freitas, Marcos Raimundo de

Fisioterapia e Pesquisa

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dec 2011, Volume 18 N. 4 Pages 382 - 387

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A Síndrome Pós-Pólio (SPP) caracteriza-se por um novo episódio de fraqueza muscular e/ou fadiga muscular anormal em indivíduos que apresentaram poliomielite anterior aguda (PAA) anos antes. Ainda são poucos os relatos na literatura sobre o gerenciamento da dor na SSP. O objetivo deste trabalho é analisar o controle da dor na síndrome pós-pólio por meio de um relato de caso. Um homem de 57 anos com SPP foi submetido a 24 sessões de fisioterapia para controle do quadro álgico na síndrome, baseada em recursos eletrotermofototerápicos e cinesioterapia. Para análise da dor pré e pós-intervenção fisioterapêutica foram aplicados dois instrumentos: a Escala Analógica Visual (EVA) e a Intensidade de Dor Presente (ID). O quadro álgico no joelho direito sofreu redução de grau 8 para 4 pela EVA e grau 5 para 2 pela ID, enquanto a dor no tornozelo direito reduziu de grau 2 pela EVA e grau 1 pela ID para zero em ambas as escalas. A dor é apontada como um sintoma predominante por muitos pacientes com SPP. O sujeito deste relato, após o programa de tratamento, apresentou melhora expressiva da dor. Entretanto, devido à escassez da literatura sobre dados substanciais referentes ao seu gerenciamento, especialmente na fisioterapia, novos estudos devem ser propostos para gerar maior fundamentação teórica à abordagem fisioterapêutica na SPP.

The Post-polio Syndrome (PPS) is characterized by a new episode of muscular weakness and/or abnormal muscular fatigue in subjects that presented acute previous polio (APP) years ago. There still are few studies about the pain management at PPS. The aim of this study is to analyze pain´s management in PPS by a case report. A men with PPS, 57 years, was submitted to 24 sessions of physical therapy for pain´s control in PPS, based at electro-thermo physical therapy features and therapeutics exercises. For pain´s analysis, pre and post physical therapy interventions were applied two instruments: the Analogic Visual Scale (AVS) and Present Pain Intensity (PPI). The pain in right knee was reduced from grade 8 to 4 on AVS, grade 5 to 2 on PPI, while the pain in his right ankle decreased from grade 2 on AVS and 1 on PPI to zero in both scales. The pain is the predominant symptom for many patients with PPS. This relate, the patient after program of treatment presented an improvement of pain. However, because of there are few studies in the literature about the pain management, especially in physical therapy, new studies must be proposed to generate more theorical at Physical therapy intervention in PSS.

12742 downloads

10.

Estádios de desenvolvimento de mudas de umbuzeiros propagadas por enxertia
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Reis, Ronaldo Viana dos

; Fonseca, Nelson

; Ledo, Carlos Alberto da Silva

; Gonçalves, Leandro Simões Azeredo

; Partelli, Fábio Luiz

; Silva, Marcelo Geraldo de Morais

; Santos, Elaine Alves

Ciência Rural

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apr 2010, Volume 40 N. 4 Pages 787 - 792

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O reconhecido potencial econômico das Spondias (como o umbuzeiro) e o crescente interesse dos mercados internacionais em razão da demanda de frutos com sabores exóticos utilizados no preparo de sucos, doces e sorvetes têm despertado o interesse de pesquisadores e produtores por essa fruteira. Os objetivos do trabalho foram avaliar o desenvolvimento de mudas de umbuzeiro e indicar a melhor idade da muda e do garfo para a realização da enxertia. A semeadura foi realizada em canteiros de madeira de 1,5m de largurax10,0m de comprimento x 0,15m de altura, contendo areia lavada, sendo as sementes colocadas juntas e alinhadas em fileiras espaçadas de 5,0 cm uma da outra. Avaliou-se a altura da muda a partir do colo da planta, do número de folhas, do diâmetro do caule a 5, 10 e 15cm do colo, da matéria fresca e seca da parte aérea e das raízes no dia do transplante e após 60, 120, 180 e 240 dias após o transplantio. Avaliou-se também a sobrevivência das mudas com 180 dias após o transplantio, por meio da enxertia, pelo método de garfagem em fenda cheia ao topo com material propagativo (garfos) de umbuzeiros de várias procedências e idades. O delineamento utilizado foi o inteiramente casualizado, e as repetições foram compostas por seis plantas por parcela. Conclui-se que, a partir de seis meses depois da repicagem, as mudas do umbuzeiro podem ser enxertadas pelo método de garfagem em fenda cheia ao topo. Houve uma sobrevivência de 80% das mudas enxertadas, estando estas prontas para o plantio em campo depois de dois meses após a enxertia. O índice de pegamento diminuiu de forma gradual ao serem usados garfos oriundos de plantas com idade acima de seis anos.

The economic importance of Spondias umbuzeiro has been increased in international market due to its exotic flavor and the ability to be used in juices, ice creams and other food preparation. For this reason, the knowledge of many aspects of this species is has been investigated by many researchers and also attracted the farmers interest. The aim of this research was to evaluate the development of umbu seedlings and to indicate the best stage of the seedling and also the more appropriate stage of the fork for grafting. Seeds were sown in wood beds with 1.5m wide10.0m long0.15m high, washed sand, and placed together and aligned in rows spaced 5.0cm apart. The following characteristics were evaluated: seedling size, leaves number, stem diameter at 5, 10 and 15cm from the soil, canopy and root fresh weight in the transplant date and also after 60, 120, 180 and 240 days after transplanting. The grafting technique studied consisted in a top bench grafting with seedlings from different origins and development stages. The efficiency of grafting technique was evaluated after 180 days after transplanting by observing the surviving plants. The experiments were carried out in a completely casualized design and the replicates made up of six plants per plot. It was concluded that from six months after transplanting the umbuzeiro seedlings can be grafted by using top cleft grafting. The efficiency of grafting technique reached 80% of all genotypes tested. The same results were observed considering plants after two months when the plants were already planting in a definitive place. The survival index decreased gradually when forks from plants older than six years were used.

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11.

Genotyping of hepatitis B virus in a cohort of patients evaluated in a hospital of Porto Alegre, south of Brazil
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Becker, Carlos Eduardo

; Mattos, Angelo Alves de

; Bogo, Maurício Reis

; Branco, Fernanda

; Sitnik, Roberta

; Kretzmann, Nelson Alexandre

Arquivos de Gastroenterologia

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mar 2010, Volume 47 N. 1 Pages 13 - 17

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

CONTEXTO: Nos últimos anos a genotipagem do vírus da hepatite B (VHB) tem sido considerado fator relevante para a história natural da doença. OBJETIVOS: Determinar os genótipos do VHB e suas implicações clínicas e epidemiológicas, em uma coorte de pacientes em um hospital de Porto Alegre, RS, sul do Brasil. MÉTODOS: Foram avaliados 67 pacientes com marcadores de infecção crônica pelo VHB que estavam sendo tratados no Complexo Hospitalar Santa Casa de Porto Alegre, RS. Foi aplicado um protocolo com dados demográficos e epidemiológicos dos pacientes, e AgHBe e ALT foram determinadas. Os genótipos e subtipos foram determinados por PCR in-house e, finalmente, as amostras foram sequenciadas. O nível de significância utilizado foi de 5%. RESULTADOS: A análise qualitativa de VHB-DNA por PCR foi positiva em 79,1% das amostras (53/67). O genótipo foi determinado em todas as amostras de VHB-DNA positivo. A análise demonstrou a presença dos genótipos A (34%), D (60,4%) e F (5,4%). Foram encontrados os seguintes subtipos: adW, ayw e adw4. Nenhuma correlação significativa foi encontrada entre os genótipos do VHB e as variáveis demográficas estudadas como fator de risco para infecção pelo VHB, e com os exames sorológicos e laboratoriais de doença hepática. CONCLUSÃO: O genótipo mais prevalente encontrado foi o D. No entanto, mais estudos são necessários para que se possa avaliar as implicações da variabilidade genética na evolução clínica de portadores do VHB.

CONTEXT: In recent years the hepatitis B virus (HBV) genotyping has been considered a relevant factor in the natural history of the disease. OBJECTIVE: To determine hepatitis B virus genotypes and its epidemiological and clinical implications, in a cohort of patients in a hospital in Porto Alegre, South of Brazil. Methods - Sixty seven patients with HBV chronic infection markers who were being treated at ''Complexo Hospitalar Santa Casa'', in Porto Alegre, RS, Brazil, were evaluated. Demographic and epidemiological data were collected from these group of patients by following a standard protocol and ALT and HBeAg were determined. The genotypes and subtypes were determined by in-house PCR and, finally, the samples were sequenced. The level of significance used was 5%. RESULTS: The qualitative analysis for HBV-DNA by PCR was positive in 79.1% of the samples (53/67). The genotype was determined in all positive VHB-DNA samples and the genotypes A (34%), D (60.4%) and F (5.4%) as well as the subtypes adw, ayw and adw4 were found. No significant correlation was found between the hepatitis B virus genotypes and demographic variables considered as risk factors for hepatitis B virus infection. There was also no correlation between the genotypes and the serological and laboratory variables related to liver disease. CONCLUSION: We concluded that the most prevalent genotype found was D. However, further studies are needed to allow us to evaluate the implications of genetic variability in the clinical evolution of HBV carriers.

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12.

Maior letalidade e morbidade por infarto agudo do miocárdio em hospital público, em Feira de Santana - Bahia
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Ferreira, Graça Maria Tavares de Melo

; Correia, Luis Cláudio

; Reis, Helena

; Ferreira Filho, Carlos Brandão

; Freitas, Francisco

; Ferreira, Guilherme Melo

; Júnior, Ivan

; Oliveira, Nelson

; Guimarães, Armênio Costa

Arquivos Brasileiros de Cardiologia

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aug 2009, Volume 93 N. 2 Pages 97 - 104

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

FUNDAMENTO: Fatores relacionados ao nível sócio-econômico, à qualidade e à gestão assistencial podem influenciar na letalidade e morbidade por infarto agudo do miocárdio (IAM). OBJETIVO: Comparar letalidade e morbidade por IAM entre hospital público e privado. MÉTODOS: Estudo observacional, com grupos de comparação. Avaliação clínica na admissão e registro de dados diagnósticos, terapêuticos e evolutivos até a alta ou o óbito. Comparação das características clínicas por análise univariada seguida de análise bivariada, avaliando a associação de preditores com óbito e morbidade (Killip >I), SPSS, versão 13,0. RESULTADOS: Avaliados 150 pacientes, 63 (42,0%) privados e 87 (58,0%) públicos, com 63,1% e 62,1% de homens e idades de 61,1±13,8 e 60,0±11,6 anos, respectivamente. A letalidade por IAM foi de 19,5% nos públicos vs 4,8% nos privados (p=0,001) e a morbidade (Killip classe >1) de 34,3% nos públicos vs 15,0% nos privados (p=0,012). Houve diferença significativa nos públicos devido à menor renda familiar e escolaridade (70,1% com um a dois salários vs 19,0%, p<0,001, e 49,4% de analfabetos vs 6,3%, p<0,001, respectivamente), maior tempo de chegada ao hospital (TDH>1 hora: 76,9% vs 48,6%; p=0,003) e maior tempo para ser medicado (THM>15 minutos: 47,1% vs 8,0%, p<0,001), UTI para 8% vs 94% nos privados e trombólise para 20,6% vs 54,0%, respectivamente (p<0,001). CONCLUSÃO: Letalidade e morbidade maior no paciente público, que se apresentou mais grave, mais tardiamente e recebeu tratamento de menor qualidade.

BACKGROUND: Factors related to socioeconomic status and health care quality and management may influence mortality and morbidity rates due to acute myocardial infarction (AMI). OBJECTIVE: To compare mortality and morbidity in patients with AMI hospitalized in public and private hospitals. METHODS: An observational study, with comparison groups. Clinical evaluation on admission, and recording of diagnostic, therapeutic and evolution data until discharge or death. Comparison of clinical characteristics by univariate analysis followed by bivariate analysis, evaluating the combination of predictors with death and morbidity (Killip> I), SPSS, version 13.0. RESULTS: 150 patients were evaluated, 63 (42.0%) of private hospitals and 87 (58.0%) of public hospitals, with 63.1% and 62.1% of males, aged 61.1 ± 13.8 and 60.0 ± 11.6 years, respectively. The mortality from AMI was 19.5% in public hospitals vs 4.8% in private hospitals (p = 0.001), and morbidity (Killip class> I) was 34.3% in public hospitals vs 15.0% in private hospitals (p = 0.012). There was a significant difference between public and private patients, due to lower family income and education (70.1% with one to two salaries vs 19.0%, p <0.001, and 49.4% of illiterates vs 6.3%, p <0.001, respectively ); late arrival at the hospital (HAT> 1 hour: 76.9% vs 48.6%, p = 0.003); and a longer period of time before being medicated (AMT > 15 minutes: 47.1% vs 8.0%; p <0.001); ICU for 8% of the patients in public hospitals vs 94% in private hospitals; and thrombolysis for 20.6% vs 54.0%, respectively (p <0.001). CONCLUSION: Mortality and morbidity were greater among public patients, which presented more serious conditions, arrived later at the hospital and received lower quality treatment.

FUNDAMENTO: Factores relacionados al nivel socioeconómico, a la calidad y a la gestión asistencial pueden influir en la letalidad y la morbilidad por infarto agudo de miocardio (IAM). OBJETIVO: Comparar letalidad y morbilidad por IAM entre hospital público y privado. MÉTODOS: Estudio observacional, con grupos de comparación. Evaluación clínica al ingreso y registro de datos diagnósticos, terapéuticos y evolutivos hasta el alta u óbito. Comparación de las características clínicas por análisis univariado, seguida de análisis bivariado, evaluando la asociación de predictores con óbito y morbilidad (Killip >I), SPSS, versión 13,0. RESULTADOS: Se evaluaron a 150 pacientes, 63 pacientes privados (42,0%) y 87 públicos (58,0%), con un 63,1% y un 62,1% de varones y edades variando de 61,1±13,8 a 60,0±11,6 años, respectivamente. La letalidad por IAM fue de un 19,5% en los pacientes públicos vs. un 4,8% en los privados (P=0,001), y la morbilidad (Killip classe >1) de un 34,3% en los públicos vs. el 15% en los pacientes privados (P=0,012). Hubo diferencia significativa en los pacientes públicos por culpa de la menor renta familiar y de la baja escolaridad (un 70,1% con uno a dos salarios vs. el 19%, P<0,001, y un 49,4% de analfabetos vs. un 6,3%, P<0,001, respectivamente), mayor tiempo transcurrido hasta la llegada al hospital (TDH>1 hora: un 76,9% vs. un 48,6%; P=0,003) y un mayor tiempo transcurrido hasta la administración de los medicamentos (THM>15 minutos: 47,1% vs. 8,0%, P<0,001), UCI para el 8% vs. el 94% en los pacientes privados y trombólisis para un 20,6% vs. el 54%, respectivamente (P<0,001). CONCLUSIÓN: Letalidad y morbilidad mayor en el paciente público, que se presentó más severa más tardíamente, y recibió tratamiento de menor calidad.

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13.

Tratamento de uma coorte de pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST
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Soares, Jamil da Silva

; Souza, Nelson Robson Mendes de

; Nogueira Filho, Jair

; Cunha, Cristiane C.

; Ribeiro, Georgina Severo

; Peixoto, Ronald Souza

; Soares, Carlos Eduardo C.

; Soares, Leandro C.

; Reis, Aldo Franklyn

; Faria, Carlos Augusto Cardozo de

Arquivos Brasileiros de Cardiologia

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jun 2009, Volume 92 N. 6 Pages 464 - 471

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

FUNDAMENTO: Trombólise e angioplastia transluminal coronariana (ATC) primária são técnicas bem estabelecidas, mas grande parte dos pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST (IAM com SST) não as recebem quando do atendimento hospitalar. OBJETIVO: Descrever tratamentos inicial e final e desfechos de uma coorte com IAM com SST. MÉTODOS: Analisados, da internação até a alta, 158 pacientes com IAM com SST, de uma população total de 351 pacientes internados com (SCA) nos hospitais de Campos dos Goytacazes, entre 2004 e 2006. RESULTADOS: Dos 158 pacientes com IAM com SST, 67,7% chegaram ao hospital nos primeiros 180 minutos, 81,3% em 360 minutos e 8,4% após doze horas. Realizados 148 estudos cinecoronariográficos (93,7%). Observadas lesões de mais de 70% em 266 territórios arteriais. Tratamento inicial foi ATC em 41(26%), trombolíticos em 50 (32%), com 80% de sucesso. Tratamento clínico em 67 (42%). Cerca de 35% dos pacientes deveriam ser trombolizados mas não o foram. No tratamento final foram 93 ATCs, 89 delas com sucesso angiográfico (95,7), sangramento 2 (2,2), oclusão subaguda 2 (2,2%), dissecção tronco 1 (1,1), pseudo aneurisma 1 (1,1). Nenhum óbito durante angioplastia; na evolução, houve dois óbitos (2,1%). Doze pacientes submetidos a cirurgia de revascularização miocárdica (CRM). Tratamento clínico 53 (33%), com 11 óbitos (20,7%). Letalidade global 9,5%, consideradas as três formas de tratamento. CONCLUSÃO: Pacientes atendidos em tempo adequado para reperfusão, porém 1/3 deles não recebeu o procedimento. Tratamento predominante foi ATC, com baixa morbidade. Dois óbitos na evolução. Baixa letalidade global.

BACKGROUND: Although thrombolysis and primary CTA are well-established procedures, they are not administered in a large proportion of the patients with STEMI who arrive to the emergency rooms. OBJECTIVE: Describe initial and final the results in a cohort of STEMI patients METHODS: The study included, from hospital admission to the discharge, 158 patients diagnosed with STEMI, from a total of 351 patients with ACS admitted to hospitals in Campos dos Goytacazes, RJ, Brazil, between 2004 and 2006. RESULTS: Of the 158 patients with STEMI, 67.7% arrived to the hospital within 180 minutes, 81.3% within 360 minutes, and 8.4% after twelve hours from the symptoms. Cinecoronariographic studies (148) were performed (93,7%). Lesions of over 70% were observed in 266 artery territories. The initial treatment was CTA in 41 (26%), thrombolytics in 50 (32%), 80% of success. Clinical treatment in 67 (42%). Approximately 35% of the patients should have undergone thrombolysis, but they didn´t. During the final treatment, 93 CTAs were performed: 89 with angiographic success (95.7%), bleeding 2 (2.2%), subacute occlusion 2 (2.2%), trunk dissection 1 (1.1%), pseudoaneurism 1 (1.1%). No deaths during angioplasty; during evolution, there were two deaths (2.1%). Twelve patients underwent myocardial revascularization surgery (MRS), while 53 underwent clinical treatment, with 11 deaths (20.7%). Global lethality was 9.5%, considering the three types of treatment. CONCLUSIONS: Patients were suitable for reperfusion, but one third of them did not have the procedure. Two deaths during evolution. The most predominant treatment was CTA, with low morbidity. Low global lethality.

FUNDAMENTO: La trombólisis y la angioplastia transluminal coronaria (ATC) primaria son técnicas bien establecidas, sin embargo gran parte de los pacientes con infarto agudo de miocardio con supradesnivel del segmento ST (IAM con SST) no las reciben cuando de la atención hospitalaria. OBJETIVO: Describir los tratamientos inicial y final y los desenlaces de una cohorte con IAM con SST. MÉTODOS: Se analizaron, desde la internación hasta el alta, a 158 pacientes con IAM con SST, de una población total de 351 pacientes internados con (SCA) y los hospitales de la ciudad de Campos dos Goytacazes, entre 2004 y 2006. RESULTADOS: De los 158 pacientes con IAM con SST, un 67,7% ingresaron al hospital en los primeros 180 minutos, un 81,3% en 360 minutos y un 8,4% tras 12 horas. Se realizaron 148 estudios cinecoronariográficos (93,7%). Se observaron lesiones de más del 70% en 266 territorios arteriales. El tratamiento inicial consistió en ATC en 41(26%), trombolíticos en 50 (32%), con el 80% de éxito. Tratamiento clínico en 67 (42%). Se debería trombolizar alrededor del 35% de los pacientes pero no se lo hizo. En el tratamiento final fueron 93 ATCs, 89 de ellas con éxito angiográfico (95,7), sangrado 2 (2,2), oclusión subaguda 2 (2,2%), disección tronco 1 (1,1), pseudoaneurisma 1 (1,1). No hubo óbito durante la angioplastia; en la evolución, hubo dos óbitos (2,1%). Doce pacientes sometidos a cirugía de revascularización miocárdica (CRM). El tratamiento clínico 53 (33%), con 11 óbitos (20,7%). Letalidad global el 9,5%, consideradas las tres formas de tratamiento. CONCLUSIÓN: Se atendieron a los pacientes en tiempo adecuado para reperfusión, pero 1/3 de ellos no recibió el procedimiento. El tratamiento predominante fue ATC, con baja morbilidad. Dos fueron los óbitos en la evolución. Baja letalidad global.

11455 downloads Cited 2 times in SciELO

14.

Perfil morfológico de culturistas brasileiros de elite em período competitivo
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Cyrino, Edilson Serpeloni

; Santarém Sobrinho, José Maria

; Maestá, Nailza

; Nardo Jr., Nélson

; Reis, David Augusto dos

; Morelli, Mônica Yara Gabriel

; Burini, Roberto Carlos

Revista Brasileira de Medicina do Esporte

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oct 2008, Volume 14 N. 5 Pages 460 - 465

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O objetivo deste estudo foi analisar o perfil morfológico de culturistas brasileiros de elite que competiram no XXVII Campeonato Brasileiro de Culturismo-Musculação. Um total de 28 atletas (27,0 ± 7,4 anos; 78,2 ± 8,7kg; 170,1 ± 6,9cm), do sexo masculino, foram voluntariamente estudados. Medidas antropométricas (massa corporal, estatura, espessura de dobras cutâneas, perímetros e diâmetros) foram coletadas de todos os sujeitos no período da manhã, no dia da competição. Os valores estimados da composição corporal dos atletas foram os seguintes: gordura corporal relativa, 5,8 ± 0,5%; massa corporal magra, 73,6 ± 8,2kg; massa muscular, 54,3 ± 6,7kg; área muscular do braço, 108,51 ± 15,19cm². Por outro lado, o somatótipo médio encontrado foi: endomorfia, 1,11 ± 0,29; mesomorfia, 8,26 ± 0,67; ectomorfia, 0,95 ± 0,53 (mesomorfo balanceado). Além de os culturistas apresentarem elevados níveis de desenvolvimento muscular (~70%) e baixos depósitos de gordura corporal, verificou-se uniformidade nos acúmulos de gordura localizada. A predominância do componente mesomorfo confirmou a estrutura muscular acentuadamente desenvolvida encontrada nos atletas investigados. Portanto, os resultados do presente estudo demonstram que atletas de culturismo de elite apresentam no dia da competição grande volume muscular, bem como excelente definição muscular, proporcionalidade e simetria.

The aim of this study was to analyze the morphological profile of elite Brazilian bodybuilders who participated in the XXVII Brazilian Championship of Body Building. A total of 28 male athletes (27.0 ± 7.4 years; 78.2 ± 8.7 kg; 170.1 ± 6.9cm), were voluntarily assessed. Anthropometric measures (body mass, stature, skinfolds thickness, perimeters and diameters) were collected from all subjects in the morning shift, at the competition day. The estimated values of the body composition of the athletes were the following: relative body fat, 5.8 ± 0.5%; lean body mass, 73.6 ± 8.2 kg; muscular mass, 54.3 ± 6.7 kg and arm muscular area, 108.51 ± 15.19 cm². Conversely, the mean somatotype found was: endomorphy, 1.11 ± 0.29; mesomorphy, 8.26 ± 0.67; ectomorphy, 0.95 ± 0.53 (balanced mesomorphy). Besides high levels of muscular development (~70%) and low body fat buildup, the bodybuilders also presented uniformity in the accumulation of located fat. Predominance of the mesophormic component confirmed muscular structure remarkably developed found in the investigated athletes. Therefore, the results of the present study demonstrate that elite body building athletes present large amount of muscular volume, as well as excellent muscular definition, proportionality and symmetry at the day of the competition.

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15.

Performance of 3Y-TZP bioceramics under cyclic fatigue loading
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Souza, Renato Chaves

; Santos, Claudinei dos

; Barboza, Miguel Justino Ribeiro

; Baptista, Carlos Antonio Reis Pereira

; Strecker, Kurt

; Elias, Carlos Nelson

Materials Research

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mar 2008, Volume 11 N. 1 Pages 89 - 92

Abstract: En | Text: En | PDF: En

In this work, the static mechanical properties and cyclic fatigue life of 3 mol. (%) Y2O3-stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramics were investigated. Pre-sintered samples were sintered in air at 1600 °C for 120 minutes, and characterized by X ray diffraction and scanning electronic microscopy. Hardness and fracture toughness were determined by Vicker's indentation method, and Modulus of Rupture was determined by four-point bending testing. Fully dense sintered samples, near to 100% of theoretical density, presented hardness, fracture toughness and bending strength of 13.5 GPa, 8.2 MPa.m½ and 880 MPa, respectively. The cyclic fatigue tests were also realized using four-point bending testing, within a frequency of 25 Hz and stress ratio R of 0.1. The increasing of load stress lead to decreasing of the number of cycles and the run-out specimens number. The tetragonal-monoclinic (t-m) ZrO2-transformation observed by X ray diffraction contributes to the increasing of the fatigue life. The 3Y-TZP samples clearly presents a range of loading conditions where cyclic fatigue can be detected.

3046 downloads Cited 1 time in SciELO

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