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Abstract: This text addresses the debate about the “bourgeois revolution” in Brazil in the founders of the Marxist Theory of Dependence. To this end, we analysed the reflections on this theme developed by Marini, Bambirra and Dos Santos in their original texts from the 1960s and 1970s and sought to present an assessment of the points of convergence and controversy between their respective productions.

Resumo: Este artigo aborda o debate sobre a “revolução burguesa” no Brasil nos fundadores da Teoria Marxista da Dependência. Para tanto, analisamos as reflexões sobre o tema desenvolvidas por Marini, Bambirra e Dos Santos em seus estudos originais das décadas de 1960 e 1970, e buscamos apresentar uma avaliação sobre os pontos de convergência e as controvérsias entre suas respectivas produções.

https://doi.org/10.1590/0101-6628.350

COVID-19 and isolation: Risks and implications in the scenario of new variants
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Dias, Viviane Maria de Carvalho Hessel

; Oliveira, Alexandre Ferreira

; Marinho, Ana Karolina Barreto Berselli

; Santos Ferreira, Carlos Eduardo dos

; Domingues, Carlos Eduardo Ferreira

; Fortaleza, Carlos Magno Castelo Branco

; Vidal, Claudia Fernanda de Lacerda

; Carrilho, Claudia Maria Dantas de Maio

; Pinheiro, Debora Otero Britto Passos

; de Assis, Denise Brandão

; Medeiros, Eduardo Alexandrino

; Morejón, Karen Mirna Loro

; Weissmann, Leonardo

; Michelin, Lessandra

; Carneiro, Marcelo

; Nogueira, Maria Dolores Santos da Purificação

; de Oliveira, Priscila Rosalba Domingos

; Buralli, Rafael Junqueira

; Stucchi, Raquel Silveira Bello

; Lins, Rodrigo Schrage

; Costa, Silvia Figueiredo

; Chebabo, Alberto

Brazilian Journal of Infectious Diseases

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2022, Volume 26 N. 5 elocation 102703

Abstract: En | Text: En | PDF: En

Abstract With the emergence of new variants of SARS-CoV-2, questions about transmissibility, vaccine efficacy, and impact on mortality are important to support decision-making in public health measures. Modifications related to transmissibility combined with the fact that much of the population has already been partially exposed to infection and/or vaccination, have stimulated recommendations to reduce the isolation period for COVID-19. However, these new guidelines have raised questions about their effectiveness in reducing contamination and minimizing impact in work environments. Therefore, a collaborative task force was developed to review the subject in a non-systematic manner, answering questions about SARS-CoV-2 variants, COVID-19 vaccines, isolation/quarantine periods, testing to end the isolation period, and the use of masks as mitigation procedures. Overall, COVID-19 vaccines are effective in preventing severe illness and death but are less effective in preventing infection in the case of the Omicron variant. Any strategy that is adopted to reduce the isolation period should take into consideration the epidemiological situation of the geographical region, individual clinical characteristics, and mask for source control. The use of tests for isolation withdrawal should be evaluated with caution, due to results depending on various conditions and may not be reliable.

https://doi.org/10.1016/j.bjid.2022.102703

Mapeando estudos em história da psicologia no Brasil: análise bibliométrica
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Farias, Aline Fernandes

; Souza, Guilherme Santos

; Silva, Rhenato Vargas da Fonseca

; Sales, Aline Cavalheiro

; Branco, Paulo Coelho Castelo

; Polanco, Fernando

; Miranda, Rodrigo Lopes

Revista de psicología (Santiago)

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jan 2021, Volume 30 N. 1 Pages 121 - 132

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

Abstract: The history of psychology is a field of research, debate, teaching, and professional training which has been circulating in Brazil and in other countries from several academic and cultural manifestations. This study describes and analyses Brazilian articles on the history of psychology published between 1996 and 2019. A total of 112 texts were categorized into three major groups, as follows: profile of authors, characteristics of the paper, and study aspects. Our results suggest a preponderance of female lead author. Regardless of gender, there is a prevalence of PhDs as the first author, with a predominant institutional affiliation from the Southeast of the country. These texts deal mainly with some themes, such as education, history of psychological knowledge, and politics. Finally, our results suggest that there is no homogeneity in the term “history of psychology”, which is connected to both historiographic works and studies that make “historical” or “introduction/conceptualization” of themes, as well as the occurrence of titles, abstracts and keywords that are not very precise.

Resumo: A História da Psicologia é considerada um campo de pesquisas, discussões, ensino e formação profissional, que tem se propagado e circulado, no Brasil e em outros países, a partir de várias manifestações culturais acadêmicas. Este artigo descreve e analisa produções brasileiras em História da Psicologia, segundo uma análise bibliométrica de artigos publicados de 1996 a 2019. Obtivemos 112 textos em que os dados foram categorizados em três grandes grupos: perfil dos autores; características da produção; e aspectos dos estudos. Os resultados indicam preponderância de autor principal feminino e, independentemente do gênero, há prevalência de doutores como primeiro autor, com predominante filiação institucional do Sudeste. As produções versam, principalmente, sobre temas como Educação, História dos Saberes Psicológicos e Política. Por fim, os resultados sugerem um uso pouco uniforme do termo “história da psicologia”, que vem ligado tanto a trabalhos propriamente historiográficos quanto a estudos que fazem “históricos” ou “introdução/conceitualização” de temáticas, bem como a ocorrência de títulos, resumos e palavras-chave pouco precisos.

https://doi.org/10.5354/0719-0581.2021.56681 30 downloads

Gramsci e a crítica da economia política: estudos sobre o mercado determinado
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Castelo, Rodrigo

Revista Katálysis

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apr 2020, Volume 23 N. 1 Pages 122 - 131

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

Resumo O presente texto apresenta uma análise da categoria de mercado determinado na obra de Antonio Gramsci, tanto nos Cadernos do cárcere como nas suas correspondências com Tatiana Schucht e Piero Sraffa. Nossos estudos apontam que a referida categoria é um dos pontos centrais da unidade dialética entre filosofia, economia e política nos Cadernos - as três fontes do marxismo, de acordo com Lenin -, unidade incontornável para o entendimento das elaborações gramscianas na sua totalidade. Nesta unidade, a crítica da economia política tem um peso considerável, o que nem sempre é reconhecido por comentadores da obra de Gramsci. Um dos nossos objetivos, portanto, é reavaliar o peso dos estudos sobre economia na teoria gramsciana.

Abstract This article analyzes the determined market in work by Antonio Gramsci, both in the Prison Notebooks and in his correspondence with Tatiana Schucht and Piero Sraffa. The study points out that this category is one of the central points of the dialectical unity among philosophy, economy, and politics in the Notebooks (the three sources of Marxism, according to Lenin), an unavoidable unit for understanding the totality of Gramscian elaborations. In this unit, the critique of the political economy has considerable significance, which is not always recognized by commentators on Gramsci’s work. One of the objectives of this article is to reassess the significance of studies on economics in Gramsci’s theory.

https://doi.org/10.1590/1982-02592020v23n1p122 1010 downloads

Capitalismo dependente e as origens da “questão social” no Rio de Janeiro
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Castelo, Rodrigo

; Ribeiro, Vinicius

; Rocamora, Guilherme de

Serviço Social & Sociedade

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apr 2020, N. 137 Pages 15 - 34

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

Resumo: O presente trabalho discute, a partir das particularidades do capitalismo dependente no Brasil, a gênese da “questão social” no estado do Rio de Janeiro. Nas duas primeiras partes, apresentamos algumas especificidades históricas da transição brasileira para o capitalismo em meados do século XIX e as mudanças do padrão de reprodução do capital agromineiro exportador para o industrial no estado fluminense. Na terceira, analisamos a luta das classes subalternas contra a superexploração do trabalho.

Abstract: The present paper discusses, from the peculiarities of dependent capitalism in Brazil, the genesis of the “social question” in the state of Rio de Janeiro. In the first two parts, we present some historical specificities of the Brazilian transition to capitalism in the middle of the 19th century and the changes in the pattern of capital reproduction of exporting agricultural for the industrial sector in the state of Rio de Janeiro. In the third, we analyze the struggle of the subaltern classes against the overexploitation of labor.

https://doi.org/10.1590/0101-6628.199 1846 downloads

Oxigenoterapia Hiperbárica Enquanto Terapêutica Complementar da Úlcera do Pé Diabético: Útil ou Inútil? - Uma Revisão da Literatura
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Vicente, Rodrigo

; Costa, Diogo Alpuim

; Castelo-Branco, Miguel

Gazeta Médica

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mar 2020, Volume 7 N. 1 Pages 17 - 25

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

Resumo Introdução: O pé diabético é uma complicação frequente da diabetes mellitus com importante repercussão a nível clínico, psicossocial e económico, exigindo dos prestadores de cuidados de saúde uma abordagem terapêutica multimodal. Definiu-se como objetivo principal a revisão da literatura sobre o tratamento complementar do pé diabético com oxigenoterapia hiperbárica e as suas perspetivas futuras no tratamento desta complicação. Material e métodos: Pesquisa bibliográfica através da PubMed, CINAHL, Cochrane e Google Académico desde 2014, utilizando os seguintes descritores: pé diabético, úlcera diabética e oxigenoterapia hiperbárica. Foram analisadas trinta e duas publicações, tendo sido selecionados seis artigos de revisão. Resultados: A oxigenoterapia hiperbárica parece eficaz na cicatrização aos seis meses, promissora na cicatrização de lesões com mais de doze meses de evolução e associada a uma baixa incidência de efeitos adversos. A saturação de oxigénio transcutânea foi maior e houve menor incidência de amputação major dos membros inferiores no subgrupo de doentes tratados com esta terapia. Discussão: A evidência atual aponta para um benefício clínico da oxigenoterapia hiperbárica enquanto modalidade terapêutica complementar do pé diabético. Ainda não é totalmente conhecido o perfil clínico ideal do doente que beneficiará deste tipo de tratamento pelas heterogeneidades e limitações metodológicas dos estudos considerados. É importante a realização de mais ensaios clínicos prospetivos, aleatorizados e controlados que consubstanciem a sua eficácia.

Abstract Introduction: Diabetic foot is a frequent complication of diabetes mellitus with relevant economic and psychosocial issues, which requires optimisation of the therapeutic approach from health care providers. The main purpose was to review the literature on the clinical utility and future perspectives of hyperbaric oxygen therapy in the adjunctive treatment of the diabetic foot. Material and methods: PubMed, CINAHL, Cochrane and Google Academic search engines were used, for articles since 2014, with an analysis of the following keywords: diabetic foot, diabetic ulcer and hyperbaric oxygen therapy. Thirty-two publications were analysed and six review articles selected. Results: Hyperbaric oxygen has been reported to benefit healing process in follow-up periods up to six months and promising for a follow-up equal to or greater than twelve months. Low incidence of side effects was reported. The transcutaneous oxygen saturation of the foot was more significant in the groups of patients treated with this complementary therapy, and there was a decrease in the need for major amputation of the lower limbs. Discussion: Current evidence points to the clinical utility of hyperbaric oxygen therapy as a complementary treatment. It has yet to be found the optimal clinical profile that would benefit from this type of treatment due to limitations on the analysed studies. Randomised, prospective clinical trials are essential to confirm these findings.

https://doi.org/10.29315/gm.v7i1.308 57 downloads

Evaluation of an antibacterial orthodontic adhesive incorporated with niobium-based bioglass: an in situ study
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DEGRAZIA, Felipe Weidenbach

; ALTMANN, Aline Segatto Pires

; FERREIRA, Carolina Jung

; ARTHUR, Rodrigo Alex

; LEITUNE, Vicente Castelo Branco

; SAMUEL, Susana Maria Werner

; COLLARES, Fabrício Mezzomo

Brazilian Oral Research

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2019, Volume 33 elocation e010

Abstract: En | Text: En | PDF: En

Abstract This in situ study aimed to evaluate the antibacterial and anti-demineralization effects of an experimental orthodontic adhesive containing triazine and niobium phosphate bioglass (TAT) around brackets bonded to enamel surfaces. Sixteen volunteers were selected to use intra-oral devices with six metallic brackets bonded to enamel blocks. The experimental orthodontic adhesives were composed by 75% BisGMA and 25% TEGDMA containing 0% TAT and 20% TAT. Transbond XT adhesive (TXT) was used as a control group. Ten volunteers, mean age of 29 years, were included in the study. The six blocks of each volunteer were detached from the appliance after 7 and 14 days to evaluate mineral loss and bacterial growth including total bacteria, total Streptococci, Streptococci mutans, and Lactobacilli. Statistical analysis was performed using GLM model - univariate analysis of variance for microhardness and 2-way ANOVA for bacterial growth (p<0.05). The 20% TAT adhesive caused no difference between distances from bracket and the sound zone at 10-µm deep after 7 and 14 days. After 14 days, higher mineral loss was shown around brackets at 10- to 30-µm deep for TXT and 0% TAT adhesives compared to 20% TAT. S. mutans growth was inhibited by 20% TAT adhesive at 14 days. Adhesive with 20% TAT showed lower S. mutans and total Streptococci growth than 0% TAT and TXT adhesives. The findings of this study show that the adhesive incorporated by triazine and niobium phosphate bioglass had an anti-demineralization effect while inhibiting S. mutans and total Streptococci growth. The use of this product may inhibit mineral loss of enamel, preventing the formation of white spot lesions.

https://doi.org/10.1590/1807-3107bor-2019.vol33.0010 1574 downloads

Treatment of Non-neurogenic Overactive Bladder with OnabotulinumtoxinA: Systematic Review and Meta-analysis of Prospective, Randomized, Placebo-controlled Clinical Trials
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Arruda, Raquel Martins

; Takano, Claudia Cristina

; Girão, Manoel João Batista Castelo

; Haddad, Jorge Milhem

; Aleixo, Gabriel Francisco

; Castro, Rodrigo Aquino

Revista Brasileira de Ginecologia e Obstetrícia

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apr 2018, Volume 40 N. 4 Pages 225 - 231

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

Resumo Realizou-se revisão sistemática emetanálise de estudos clínicos prospectivos, randomizados e placebo-controlados que comparavam a toxina botulínica ao placebo no tratamento da bexiga hiperativa. O objetivo primário desta metanálise foi avaliar a eficácia da toxina botulínica em relação à urgência urinária, frequência miccional, noctúria e episódios de incontinência. O objetivo secundário foi avaliar os efeitos adversos. Selecionamos estudos que incluíram somente pacientes com bexiga hiperativa não-neurogênica tratada com 100 unidades de onabotulinum toxina A ou placebo (grupo controle). Foram encontrados 532 estudos após as buscas iniciais, dos quais sete apresentaram todos os critérios de inclusão (estudos prospectivos, randomizados, placebo-controlados, ≥ 3pontosnaescalade Jadad) e fizeram parte desta análise. Para todos os objetivosprimários a toxina foimais eficaz do que o placebo, comp < 0,0001 e intervalo de confiança (IC) de 95%: urgência (diferençamédia = -2,07, IC=[-2,55; -1,58]), freqüênciamiccional (diferençamédia=-1,64, IC=[-2,10; -1,18]), noctúria (diferençamédia=-0,25, IC=[-0,39; -0,11]) e episódios de incontinência (diferença média = -2,06, IC= [-2,60; -1,52]). A necessidade de cateterização intermitente e a ocorrência de infecção urinária (ITU) forammais frequentes no grupo toxina na comparação como grupo placebo (p < 0,0001). A toxina botulínica promoveu melhora significativa dos sintomas de bexiga hiperativa na comparação com o placebo. Entretanto, está associada a uma maior incidência de cateterismo intermitente e infecção do trato urinário.

Abstract We performed a systematic review and meta-analysis of randomized placebo-controlled trials that studied non-neurogenic overactive bladder patients who were treated with 100 units of onabotulinumtoxinA or placebo. The primary purpose of our study was to evaluate the clinical effectiveness with regard to urinary urgency, urinary frequency, nocturia, and incontinence episodes. Our secondary purpose consisted of evaluating the adverse effects. Our initial search yielded 532 entries. Of these, seven studies met all the inclusion criteria (prospective, randomized, placebo-controlled studies, ≥ 3 points on the Jadad scale) and were selected for analysis. For all primary endpoints, the toxin was more effective than placebo (p < 0.0001; 95% confidence interval [95CI]), namely: urgency (mean difference = -2.07; 95CI = [-2.55-1.58]), voiding frequency (mean difference = - 1.64; 95CI = [-2.10-1.18]), nocturia (mean difference = -0.25; 95CI = [-0.39-0.11]) and incontinence episodes (mean difference = -2.06; 95CI= [-2.60-1.52]). The need for intermittent catheterization and the occurrence of urinary tract infection (UTI) were more frequent in patients treated with onabotulinumtoxinA than in patients treated with placebo (p < 0.0001). Compared with placebo, onabotulinumtoxinA had significantly and clinically relevant reductions in overactive bladder symptoms and is associated with higher incidence of intermittent catheterization and UTI.

https://doi.org/10.1055/s-0038-1642631 1310 downloads

10.

Physical training reverses changes in hepatic mitochondrial diameter of Alloxan-induced diabetic rats
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Kuga, Gabriel Keine

; Gaspar, Rafael Calais

; Muñoz, Vitor Rosetto

; Nakandakari, Susana Castelo Branco Ramos

; Breda, Leonardo

; Sandoval, Bruna Marina

; Caetano, Flávio Henrique

; Leme, José Alexandre Curiacos de Almeida

; Pauli, José Rodrigo

; Gomes, Ricardo José

einstein (São Paulo)

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2018, Volume 16 N. 3 elocation eAO4353

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

RESUMO Objetivo Investigar os efeitos do treinamento físico nos parâmetros morfológicos e metabólicos de ratos diabéticos. Métodos Ratos Wistar foram randomizados para quatro grupos: controle sedentário, controle treinado, diabético sedentário e diabético treinado. Diabetes mellitus foi induzido por administração de Aloxana (35mg/kg) nos Grupos Diabético Sedentário e diabético treinado. O protocolo de treinamento físico incluiu natação com carga de 2,5% do peso corporal, por 60 minutos por dia (5 dias por semana) para os Grupos Controle Treinado e diabético treinado, durante 6 semanas. Ao final do experimento, os ratos foram sacrificados, e o sangue foi coletado para determinação das concentrações séricas de glicose, insulina, albumina e proteínas totais. Amostras do fígado foram coletadas para determinação do glicogênio, proteínas, DNA e diâmetro mitocondrial. Resultados O Grupo Sedentário Diabético apresentou redução no peso corporal, insulinemia e glicogênio hepático, além de maior glicemia e diâmetro mitocondrial hepático. O protocolo de treinamento físico em animais diabéticos foi eficiente para restaurar o peso corporal e o glicogênio hepático, além de reduzir o diâmetro mitocondrial hepático. Conclusão O treinamento físico melhorou o metabolismo hepático e promoveu importantes adaptações morfológicas, como no diâmetro mitocondrial no fígado de animais diabéticos.

ABSTRACT Objective To investigate the effects of physical training on metabolic and morphological parameters of diabetic rats. Methods Wistar rats were randomized into four groups: sedentary control, trained control, sedentary diabetic and trained diabetic. Diabetes mellitus was induced by Alloxan (35mg/kg) administration for sedentary diabetic and Trained Diabetic Groups. The exercise protocol consisted of swimming with a load of 2.5% of body weight for 60 minutes per day (5 days per week) for the trained control and Trained Diabetic Groups, during 6 weeks. At the end of the experiment, the rats were sacrificed and blood was collected for determinations of serum glucose, insulin, albumin and total protein. Liver samples were extracted for measurements of glycogen, protein, DNA and mitochondrial diameter determination. Results The sedentary diabetic animals presented decreased body weight, blood insulin, and hepatic glycogen, as well as increased glycemia and mitochondrial diameter. The physical training protocol in diabetic animals was efficient to recovery body weight and liver glycogen, and to decrease the hepatic mitochondrial diameter. Conclusion Physical training ameliorated hepatic metabolism and promoted important morphologic adaptations as mitochondrial diameter in liver of the diabetic rats.

https://doi.org/10.1590/s1679-45082018ao4353 1942 downloads

11.

Early amplitude-integrated electroencephalography for monitoring neonates at high risk for brain injury
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Variane, Gabriel Fernando Todeschi

; Magalhães, Maurício

; Gasperine, Renato

; Alves, Heitor Castelo Branco Rodrigues

; Scoppetta, Thiago Luiz Pereira Donoso

; Figueredo, Rodrigo de Jesus Gonçalves

; Rodrigues, Francisco Paulo Martins

; Netto, Alexandre

; Mimica, Marcelo Jenne

; Gallacci, Clery Bernardi

Jornal de Pediatria

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oct 2017, Volume 93 N. 5 Pages 460 - 466

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

Resumo Objetivo: Este estudo visou correlacionar os achados do eletroencefalograma de amplitude integrada (aEEG) com resultados precoces, medidos por mortalidade e achados de neuroimagem, em uma coorte prospectiva de neonatos com risco elevado de lesão cerebral em nosso centro no Brasil. Métodos: O estudo prospectivo de coorte cego avaliou 23 neonatos prematuros abaixo de 31 semanas de idade gestacional (IG) e 17 neonatos diagnosticados com encefalopatia hipóxico-isquêmica (EHI) secundária à asfixia perinatal, com IG superior a 36 semanas, monitorados com aEEG em um centro terciário público de fevereiro de 2014 a janeiro de 2015. Foram avaliadas a atividade de fundo (classificada como padrão contínuo, descontínuo de alta voltagem, descontínuo de baixa voltagem, supressão de explosão, contínuo de baixa voltagem ou traço plano), a presença de ciclo do sono-vigília e a presença de convulsões. Foram feitas a ultrassonografia craniana em prematuros e a ressonância magnética (RMI) craniana em neonatos com EHI. Resultados: No grupo de prematuros, o traço patológico ou padrão descontínuo de baixa voltagem (p = 0,03) e a ausência de ciclo do sono-vigília (p = 0,019) foram associados a mortalidade e lesão cerebral avaliada por ultrassonografia craniana. Em pacientes com EHI, os padrões de convulsão nos traços do aEEG foram associados a mortalidade ou lesão cerebral na RMI craniana (p = 0,005). Conclusão: Este estudo corrobora os resultados anteriores e demonstra a utilidade do aEEG no monitoramento da função cerebral e na predição de alterações precoces nos grupos de neonatos estudados com risco elevado de lesão cerebral.

Abstract Objective: This study aimed to correlate amplitude-integrated electroencephalography findings with early outcomes, measured by mortality and neuroimaging findings, in a prospective cohort of infants at high risk for brain injury in this center in Brazil. Methods: This blinded prospective cohort study evaluated 23 preterm infants below 31 weeks of gestational age and 17 infants diagnosed with hypoxic-ischemic encephalopathy secondary to perinatal asphyxia, with gestational age greater than 36 weeks, monitored with amplitude-integrated electroencephalography in a public tertiary center from February 2014 to January 2015. Background activity (classified as continuous, discontinuous high-voltage, discontinuous low-voltage, burst-suppression, continuous low-voltage, or flat trace), presence of sleep-wake cycling, and presence of seizures were evaluated. Cranial ultrasonography in preterm infants and cranial magnetic resonance imaging in infants with hypoxic-ischemic encephalopathy were performed. Results: In the preterm group, pathological trace or discontinuous low-voltage pattern (p = 0.03) and absence of sleep-wake cycling (p = 0.019) were associated with mortality and brain injury assessed by cranial ultrasonography. In patients with hypoxic-ischemic encephalopathy, seizure patterns on amplitude-integrated electroencephalography traces were associated with mortality or brain lesion in cranial magnetic resonance imaging (p = 0.005). Conclusion: This study supports previous results and demonstrates the utility of amplitude-integrated electroencephalography for monitoring brain function and predicting early outcome in the studied groups of infants at high risk for brain injury.

https://doi.org/10.1016/j.jped.2016.12.003 1599 downloads

12.

Effect of silver nanoparticles on the physicochemical and antimicrobial properties of an orthodontic adhesive
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DEGRAZIA, Felipe Weidenbach

; LEITUNE, Vicente Castelo Branco

; GARCIA, Isadora Martini

; ARTHUR, Rodrigo Alex

; SAMUEL, Susana Maria Werner

; COLLARES, Fabrício Mezzomo

Journal of Applied Oral Science

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aug 2016, Volume 24 N. 4 Pages 404 - 410

Abstract: En | Text: En | PDF: En

ABSTRACT Orthodontic treatment with fixed brackets plays a major role on the formation of white spot lesions. Objective This study aimed to incorporate silver nanoparticle solutions (AgNP) in an orthodontic adhesive and evaluate its physicochemical and antimicrobial properties. Material and Methods Silver nanoparticle solutions were added to a commercial adhesive in different concentrations (w/w): 0%, 0.11%, 0.18%, and 0.33%. Shear bond strength (SBS) test was performed after bonding metal brackets to enamel. Raman spectroscopy was used to analyze in situ the degree of conversion (DC) of the adhesive layer. The surface free energy (SFE) was evaluated after the measurement of contact angles. Growth inhibition of Streptococcus mutans in liquid and solid media was determined by colony-forming unit count and inhibition halo, respectively. One-way ANOVA was performed for SBS, DC, SFE, and growth inhibition. Results The incorporation of AgNP solution decreased the SBS (p<0.001) and DC in situ (p<0.001) values. SFE decreased after addition of 0.18% and 0.33% AgNP. Growth inhibition of S. mutans in liquid media was obtained after silver addition (p<0.05). Conclusions The addition of AgNP solutions to Transbond™ XT adhesive primer inhibited S. mutans growth. SBS, DC, and SFE values decreased after incorporation up to 0.33% AgNP solution without compromising the chemical and physical properties of the adhesive.

https://doi.org/10.1590/1678-775720160154 2689 downloads

13.

O novo desenvolvimentismo e a decadência ideológica do pensamento econômico brasileiro
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Castelo, Rodrigo

Serviço Social & Sociedade

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dec 2012, N. 112 Pages 613 - 636

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

No neoliberalismo, o Brasil experimenta uma nova fase do desenvolvimento capitalista que se inicia nos governos FHC e se aprofunda sob a direção dos governos Lula e Dilma. Na esteira das transformações estruturais, constata‑se o surgimento de uma ideologia que se propõe como guia dos rumos do desenvolvimento capitalista brasileiro, o novo desenvolvimentismo. O presente artigo é uma contribuição à crítica da economia política brasileira contemporânea, explicitando seus limites a partir do conceito marxiano (e luckásiano) de decadência ideológica.

In neoliberalism times, Brazil has experienced a new phase of capitalist development that began in FHC's era and deepened under Lula and Dilmas's leadership. Following the structural changes, there is the emergence of an ideology as a guide to direct the capitalist development in Brazil - the new developmentalism. This article is a contribution to the critique of contemporary Brazilian political economy, and it explains its limits from the Marxian's (and luckasian) concept of ideological decadence.

23578 downloads Cited 6 times in SciELO

14.

Fisioterapia para consciência perineal: uma comparação entre as cinesioterapias com toque digital e com auxílio do biofeedback
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Pinheiro, Brenda de Figueiredo

; Franco, Gisela Rosa

; Feitosa, Suellen Maurin

; Yuaso, Denise Rodrigues

; Castro, Rodrigo de Aquino

; Girão, Manoel João Batista Castelo

Fisioterapia em Movimento

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sep 2012, Volume 25 N. 3 Pages 639 - 648

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

INTRODUÇÃO: Grande parte das mulheres (cerca de 30 a 50%) não consegue contrair corretamente seus músculos perineais quando isso lhes é solicitado. Provavelmente, a parte mais importante e também a mais delicada de toda avaliação fisioterapêutica é a conscientização da região perineal das pacientes incontinentes. OBJETIVO: Este trabalho teve como objetivo comparar os efeitos das cinesioterapias com toque digital e com biofeedback para consciência perineal de mulheres com incontinência urinária de esforço. METODOLOGIA: Foi realizado um ensaio clínico randomizado, composto por dois grupos intervencionais, formados por cinco mulheres cada, com incontinência urinária de esforço e com ausência de consciência perineal. RESULTADOS: Inicialmente, o grupo de biofeedback seria composto de seis mulheres e o grupo de cinesioterapia com toque bidigital seria formado por cinco mulheres, porém uma paciente foi excluída do grupo biofeedback no decorrer da pesquisa. Observou-se que houve melhora estatisticamente significativa em ambos os grupos em relação a Power, Endurance, Fast e conhecimentos acerca da região perineal, porém não houve diferença significativa entre os dois grupos, ou seja, ambos os recursos são igualmente eficazes. CONCLUSÃO: Diante dos resultados apresentados, podemos concluir que tanto a cinesioterapia com uso do biofeedback quanto a cinesioterapia com toque digital são excelentes opções de tratamento para ganho de consciência perineal.

INTRODUCTION: A significant number of women (around 30 to 50%) are unable to contract correctly their pelvic floor muscles when given a command. OBJECTIVE: This study's objective was to compare pelvic floor muscle training with digital palpation to pelvic floor muscle training with biofeedback for perineal consciousness of women with stress urinary incontinence. METHOD: It was conducted a randomized clinical trial, comprising two groups, each of them formed by five interventional women with stress urinary incontinence and without perineal consciousness. RESULTS: Initially, the biofeedback group was formed by six women and the pelvic floor muscle training group was formed by five women, but one patient was excluded from the biofeedback group during the research. It was observed that there was a statistically significant improvement in both groups for the Power, Endurance, Fast and knowledge of the perineal region, but there was no significant difference between the two groups, i.e., both treatments are equally effective. CONCLUSION: Given the results, we conclude that both pelvic floor training with digital palpation and with biofeedback are excellent treatment options to gain perineal awareness.

39964 downloads

15.

Assessment of the interaction between straw size and thawing rate and its impact on in vitro quality of post-thaw goat semen
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Bezerra, Francisco Silvestre Brilhante

; Castelo, Thibério de Souza

; Santos, Érika Aparecida Araújo dos

; Dantas, Tiago da Costa

; Simão, Bruno Rodrigo

; Silva, Alexandre Rodrigues

Revista Brasileira de Zootecnia

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mar 2012, Volume 41 N. 3 Pages 592 - 597

Abstract: En | Text: En | PDF: En

The objective of this study was to analyze interactions between different straw sizes and thawing rates on the post-thaw goat semen parameters. Twenty-one ejaculates (seven per animal) were collected from three stud bucks by using an artificial vagina. After evaluation, the semen was extended in Tris-egg yolk-glycerol and packed in 0.25 and 0.50 mL straws, followed by storage in liquid nitrogen. Thawing was performed using two different rates: 37 ºC/1 min and 55 ºC/7 s. The interaction between the 0.5-mL straw and the thawing rate of 55 ºC/7 s promoted higher progressive motility. When the effect of straws alone was analyzed, it was verified that the use of the 0.50 mL straw promoted better conservation than the 0.25 mL one for progressive motility and acrosomal integrity, after the frozen-thawing procedures. Optimal results for progressive motility were achieved when goat semen was frozen in 0.5 mL straws and thawed in water at 55 ºC/7 s.

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