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Effect of plant-growth regulators, adjuvants and artificial pollination on the fixation and quality of Annona squamosa L cultivars’ fruit
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Chagas, Pollyana Cardoso

; Crane, Jonathan

; Chagas, Edvan Alves

; Vendrame, Wagner

; Costa, Barbara Nogueira Souza

; Rubio Neto, Aurélio

; Moura, Elias Ariel de

Acta Scientiarum. Agronomy

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2023, Volume 45 elocation e62036

Abstract: En | Text: En | PDF: En

ABSTRACT. The aim of the study was to assess the effect of plant regulators (gibberellic acid and naphthalene acetic acid) and adjuvant LI 700® with and without hand pollination on the fruiting and quality of Annona squamosa L. cultivars. The experiment was conducted in the experimental orchard of the Florida Tropical Research and Education Center (TREC/UF) in Homestead, Florida, USA. The experimental design in random blocks comprised 14 treatments, 10 repetitions and 3 flowers per treatment and per tree for ‘Red’ and ‘Lessard Thai’ cultivars. To assess quality, 9 fruit from each treatment were used, with 3 repetitions and 3 fruit per repetition. High instability was observed in fruit fixation rates between cultivars. The application of growth regulators did not increase fruit fixation in the tested cultivars. The application of naphthalene acetic acid had a deleterious effect on the flowers of the sugar apple cultivars. The most uneven (asymmetrical) fruit was obtained in the treatments with the application of growth regulators. The application of the adjuvant showed toxicity, causing damage to the skin of the fruit. The fruit with the greatest symmetry had the lowest levels of soluble solids and the highest toxicity. The application of growth regulators associated with hand pollination was not efficient, presenting a low percentage of fruit fixation for Annonaceae cultivars. None of the studied treatments produced parthenocarpic fruit (without seeds). The utilization of an adjuvant in the applied concentration caused damage to the fruit peels (darkening) due to toxicity in both cultivars.

https://doi.org/10.4025/actasciagron.v45i1.62036

A cooperação internacional e a pandemia de COVID-19 na perspectiva da proteção do “whistleblower”
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Macedo de Souza, Cláudio

; Coelho Silveira Mello, Ana Luiza

; Pereira, Rafael

Opinión Jurídica

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dec 2021, Volume 20 N. 42 Pages 469 - 483

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

RESUMEN El presente artículo propone la aplicación del instituto del whistleblowing en el caso del médico chino “Li Wenliang” por considerarlo whistleblower, debido a los alertas emitidos frente a la pandemia de la COVID-19. Ante la ausencia de protección y del silencio impuesto, se preguntó: ¿Qué condiciones jurídicas expresan el derecho de protección del médico que expuso voluntariamente los riesgos específicos de salud pública? Concluyese que el derecho a la protección del delator de buena fe respaldado por el instituto whistleblowing, corroborado por los derechos humanos, y garantizado por la cooperación internacional expresan las condiciones jurídicas necesarias para la solución del caso del médico chino. La metodología empleada se basó en el método deductivo, a partir del instituto whistleblowing, evaluar el caso de médico chino. El derecho de haber sido protegido por las autoridades chinas estaba legitimado por los derechos humanos y respaldados legalmente por whistleblowing, por ser un denunciante de riesgos específicos para la salud pública. El médico era detentor personalidad internacional, siendo, por lo tanto, consagrado como sujeto de derecho ante las instituciones internacionales, siendo legítima la exigencia de los derechos humanos como forma de impedir eventuales retaliaciones. Se concluye que el derecho a la protección es, compromiso de aspiración moral cuya validad jurídica y política dependen de cooperación internacional.

ABSTRACT This article proposes the application of the whistleblowing institute in the case of the Chinese medic Li Wenliang by considering him a whistleblower due to the alerts he emitted about the COVID-19 pandemic. In face of the absence of protection and the silence imposed on him the following was asked: Which judicial conditions express the right for protection to the the medic that voluntarily exposed the specific risks for public health? The article concludes that the right for protection for the informer in good faith is backed by the whistleblower figure, corroborated by Human Rights and guaranteed by international cooperation, thus expressing the necessary judicial conditions for solving the Chinese medic case. The methodology employed was based on the deductive approach; starting from the whistleblowing institute the case of the Chinese medic is then assessed. The right for protection by the Chinese authorities was legitimized by Human Rights and legally by the whistleblowing figure, for being an informer on specific risks for public health. The medic was a holder of international personality, being, thus, a subject of law in front of the international institutions eyes and being legitimate the demand for Human Rights as a way for impeding future retaliations. It is concluded that the right for protections is a compromise of moral aspiration which judicial and political validity depend on international cooperation.

RESUMO Este artigo propõe a aplicação do instituto do whistleblowing ao caso do médico chinês “Li Wenliang” por considerá-lo whistleblower, devido aos alertas emitidos em relação à pandemia de COVID-19. Em decorrência da ausência de proteção e do silêncio que lhe fora imposto, indagou-se: “Quais condições jurídicas expressam o direito de proteção do médico que relatou voluntariamente riscos específicos de saúde pública?” Infere-se que o direito à proteção do denunciante de boa-fé respaldado pelo instituto do whistleblowing, legitimado pelos direitos humanos, e garantido pela cooperação internacional expressam as condições jurídicas necessárias para a solução do caso do médico chinês. A metodologia utilizada consistiu no método dedutivo para a partir do instituto do whistleblowing avaliar o caso do médico chinês. O direito de ter sido protegido pelas autoridades chinesas estava legitimado pelos direitos humanos e respaldado legalmente pelo whistleblowing porque era um denunciante de riscos específicos para a saúde pública. O médico era detentor de personalidade internacional, sendo, portanto, consagrado como sujeito de direito perante as instituições internacionais, sendo legítima a exigência dos direitos humanos como forma de impedir eventuais retaliações. Conclui-se que o direito à proteção é, portanto, compromisso de aspiração moral cuja validade jurídica e política dependem da cooperação internacional.

https://doi.org/10.22395/ojum.v20n42a19 8 downloads

REPRODUCIBILITY OF THE CLASSIFICATION OF PROXIMAL HUMERAL OSSIFICATION IN IDIOPATHIC SCOLIOSIS
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SOUSA FILHO, ANTONIO REINALDO DE

; MEDEIROS, RODRIGO CASTRO DE

; MUNIZ, GEORGE BRAGA

; SOUZA, MARCELO PAULO MELO DE

; PEREIRA, ANDRÉ FLAVIO FREIRE

; CABRAL, LUCIANO TEMPORAL BORGES

; FERREIRA, MARCUS ANDRÉ COSTA

; RANGEL, TÚLIO ALBUQUERQUE DE MOURA

Coluna/Columna

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sep 2021, Volume 20 N. 3 Pages 165 - 168

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

RESUMO Objetivo Avaliar a reprodutibilidade intra e interobservadores da classificação de ossificação do úmero proximal em pacientes portadores de escoliose idiopática. Métodos Estudo observacional, descritivo e transversal. Foram selecionadas radiografias (anteroposteriores) de 29 pacientes com diagnóstico de escoliose idiopática acompanhados no Ambulatório de Cirurgia da Coluna do Departamento de Ortopedia do Hospital Getúlio Vargas, Recife, Pernambuco. Essas radiografias foram avaliadas e classificadas por nove cirurgiões ortopedistas de coluna em dois momentos, com intervalo mínimo de 30 dias, para análise da reprodutibilidade intraobservador e interobservador da classificação de ossificação do úmero proximal utilizada como preditor do pico de velocidade de crescimento. Resultados A reprodutibilidade intraobservador com o índice Kappa atingiu concordância moderada a substancial. Já na análise da reprodutibilidade interobservador com o método de kappa de Fleiss constatou-se concordância de razoável a moderada, exceto no estágio 5, no qual a concordância variou de substancial a quase perfeita. Conclusões Neste estudo, a reprodutibilidade da classificação de Li, na maioria dos estágios foi razoável a moderada na avaliação interobservador e moderada à substancial na avaliação intraobservador, o que diverge da literatura atual. Nível de evidência III; Estudos diagnósticos – Investigação de um exame para diagnóstico.

ABSTRACT Objective To evaluate the intra- and interobserver reproducibility of the classification of proximal humeral ossification in patients with idiopathic scoliosis. Methods Observational, descriptive, cross-sectional study. Radiographs (anteroposterior) of 29 patients diagnosed with idiopathic scoliosis were chosen and investigated at the Spine Surgery Outpatient Clinic of the Department of Orthopedics and Traumatology of the Hospital Getúlio Vargas, Recife, Pernambuco. These radiographs were evaluated and classified by 9 spinal orthopedic surgeons at two moments, with a minimum interval of 30 days, for analysis of the intraobserver and interobserver reproducibility of the classification of proximal humeral ossification used as a predictor of peak growth velocity. Results Intraobserver reproducibility achieved moderate to substantial concordance with the kappa index. In the analysis of interobserver reproducibility using the Fleiss’ kappa method, a reasonable to moderate concordance was observed, except for in stage 5, in which concordance ranged from substantial to almost perfect. Conclusion In this study, the reproducibility of the Li classification in most of the stages was reasonable to moderate for the interobserver assessment and moderate to substantial for the intraobserver assessment, which differs from the current literature. Level of evidence III; Diagnostic studies – Investigation of a diagnostic test.

RESUMEN Objetivo Evaluar la reproducibilidad intra e interobservador de la clasificación de osificación del húmero proximal en pacientes con escoliosis idiopática. Métodos Estudio observacional, descriptivo y transversal. Se seleccionaron radiografías (anteroposteriores) de 29 pacientes con diagnóstico de escoliosis idiopática en la Clínica de Cuidados Ambulatorios de Cirugía de Columna del Departamento de Ortopedia del Hospital Getúlio Vargas, Recife, Pernambuco. Estas radiografías fueron evaluadas y clasificadas por nueve cirujanos ortopedistas de columna, en dos momentos, con un intervalo mínimo de 30 días, para analizar la reproducibilidad intraobservador e interobservador de la clasificación de osificación del húmero proximal utilizada como predictor de la velocidad máxima de crecimiento. Resultados La reproducibilidad intraobservador con el índice Kappa alcanzó concordancia de moderada a sustancial de la reproducibilidad intraobservador. En el análisis de la reproducibilidad interobservador con el método de kappa de Fleiss, se encontró concordancia de razonable a moderada, excepto en la etapa 5, en que la concordancia varió de sustancial a casi perfecta. Conclusiones En este estudio, la reproducibilidad de la clasificación de Li en la mayoría de las etapas fue de razonable a moderada en la evaluación interobservador y de moderada a sustancial en la evaluación intraobservador, lo que difiere de la literatura actual. Nivel de Evidencia III; Estudios de Diagnóstico – Investigación de una prueba de diagnóstico.

https://doi.org/10.1590/s1808-185120212003235614 73 downloads

An Overview on the Development of Electrochemical Capacitors and Batteries – part II
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MARTINS, VITOR L.

; NEVES, HERBERT R.

; MONJE, IVONNE E.

; LEITE, MARINA M.

; OLIVEIRA, PAULO F.M. DE

; ANTONIASSI, RODOLFO M.

; CHAUQUE, SUSANA

; MORAIS, WILLIAM G.

; MELO, EDUARDO C.

; OBANA, THIAGO T.

; SOUZA, BRENO L.

; TORRESI, ROBERTO M.

Anais da Academia Brasileira de Ciências

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2020, Volume 92 N. 2 elocation e20200800

Abstract: En | Text: En | PDF: En

Abstract In the second part of the review on electrochemical energy storage, the devolvement of batteries is explored. First, fundamental aspects of battery operation will be given, then, different materials and chemistry of rechargeable batteries will be explored, including each component of the cell. In negative electrodes, metallic, intercalation and transformation materials will be addressed. Examples are Li or Na metal batteries, graphite and other carbonaceous materials (such as graphene) for intercalation of metal-ions and transition metal oxides and silicon for transformation. In the positive electrode section, materials for intercalation and transformation will be reviewed. The state-of-the-art on intercalation as lithium cobalt oxide and nickel containing oxides will be approached for intercalation materials, whereas sulfur and metal-air will also be explored for transformation. Alongside, the role of electrolyte will be discussed concerning performance and safety, with examples for the next generation devices. Finally, a general future perspective will address both electrochemical capacitors and batteries.

https://doi.org/10.1590/0001-3765202020200800 1498 downloads

Characterization of Li2O-Al2O3-SiO2 glass-ceramics produced from a Brazilian spodumene concentrate
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Rebouças, L. B.

; Souza, M. T.

; Raupp-Pereira, F.

; Oliveira, A. P. Novaes de

Cerâmica

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sep 2019, Volume 65 N. 375 Pages 366 - 377

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

Resumo Vitrocerâmicas do sistema LAS (Li2O-Al2O3-SiO2) com elevada resistência ao choque térmico foram obtidas com sucesso com o uso de um concentrado de espodumênio brasileiro como principal matéria-prima (80%-70% em massa). Duas composições (Li2O.Al2O3.nSiO2) foram produzidas com n= 2 e 4, próximas às composições estequiométricas das fases eucriptita-β e espodumênio-β. A determinação das temperaturas características dos precursores vitrocerâmicos (vidros) foi realizada por dilatometria de contato, calorimetria de varredura diferencial e microscopia de aquecimento. O mecanismo de cristalização e o efeito do agente nucleante (TiO2.2ZrO2) necessário para promover a cristalização volumétrica das matrizes vítreas foram investigados. As alterações microestrutural e estrutural com a variação da temperatura foram também avaliadas por microscopia óptica e difração de raios X. As vitrocerâmicas obtidas apresentaram coeficientes de expansão térmica linear entre -0,370.10-6 e 4,501.10-6 °C-1 no intervalo de 22 a 700 °C.

Abstract Glass-ceramics in the LAS (Li2O-Al2O3-SiO2) system with high thermal shock resistance were successfully obtained using Brazilian spodumene concentrate as the main raw material (80-70 wt%). Two compositions (Li2O.Al2O3.nSiO2) were produced with n= 2 and 4, near to the stoichiometric compositions of β-eucryptite and β-spodumene. The characteristic temperatures of parent glasses were determined by contact dilatometry, differential scanning calorimetry and heating microscopy. The crystallization mechanism and the effect of the nucleating agent (TiO2.2ZrO2) required to promote volume crystallization in the parent glasses were investigated. Microstructural and structural changes with temperature were also evaluated by optical microscopy and X-ray diffraction. The obtained glass-ceramics presented coefficients of thermal expansion between -0.370x10-6 and 4.501x10-6 °C-1 in the 22 to 700 °C range.

https://doi.org/10.1590/0366-69132019653752699 1746 downloads

Multi-view autostereoscopic system for 3D visualization in anatomy
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Magalhães, Daniel Souza Ferreira

; Mansoor, Saad

; Weng, Ying

; Ghizoni, Enrico

; Barbosa, Thiago

; Silveira, Fernanda de Almeida

; Toledo, Rolando Serra

; Li, Li Min

Research on Biomedical Engineering

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sep 2018, Volume 34 N. 3 Pages 279 - 283

Abstract: En | Text: En | PDF: En

Abstract Introduction The use of 3D imaging in the medical field has proven to be a benefit to doctors when diagnosing patients. As for different medical applications, 3D visualization systems have advantages in terms of a better spatial understanding of anatomical structures, better performance of tasks that require high level of dexterity, increased learning performance, and improved communications with patients or between doctors. Methods In this technical report, we show how to employ a multi-view autostereoscopic system to provide 3D images without any special glasses or equipment, describing a new way to obtain 3D visualization using sets of 2D images instead of real volumetric data such as magnetic resonance imaging (MRI) or computed tomography (CT). We also propose an application of the images in neuroanatomy. Results We obtained three-dimensional images of anatomical parts for visualization without glasses with resolution of 336 × 210 pixels’. Conclusion The proposed method was able to generate three-dimensional high-resolution images and has great potential to be used in various areas such as anatomy and physiological studies.

https://doi.org/10.1590/2446-4740.180066 1002 downloads

Colombia, Brasil, Argentina y Chile: práctica educativa y orientaciones pedagógicas
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Ayala Zuluaga, Carlos Federico

; Tadeu Iaochite, Roberto

; de Souza Neto, Samuel

Revista Historia de la Educación Latinoamericana

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dec 2017, Volume 19 N. 29 Pages 197 - 218

RESUMEN El presente artículo discute aspectos de la Práctica Educativa en cuatro universidades oficiales, o del estado, en: Colombia, Brasil, Argentina, y Chile y está en relación con las orientaciones pedagógicas propuestas por Feiman (1990) e Imbernon (2007). El enfoque de la investigación es cualitativo y busca comprender aspectos intrínsecos, regionales, culturales, y políticos de la práctica educativa relacionada con orientaciones pedagógicas, mediante un proceso de preanálisis fluctuante de la información, la codificación e identificación de categorías, y finalmente la descripción, categorización, inferencia e interpretación de la información recogida. En los resultados se evidencia que las orientaciones pedagógicas convergen en la acción, la reflexión, el conocimiento, el uso de las Tecnologías digitales de información y comunicación, y en el desarrollo de la identidad docente. Conclusiones principales: las orientaciones pedagógicas predominantes en la práctica educativa oficial son la académica y la tecnicista, y en las universidades son la tradicional, académica, de eficacia social, hermenéutica y la centrada en procesos.

TUNB’AAL TZ’IIJ: E jun wuuj ri ki ch’aw purwe’ ri b’anb’aal tujneem chapam kijab’ namaq taq tub’aal aj choq’on li tinimiit, re: Colombia, Brasil, Argentina, saqara’ Chile, kikan ri pixb’aneem purwe’ tujneem kirya’ Feiman (1990) richb’iil Imbernon (2007). E ri b’eey jun jyneem ri kiril ri b’anb’aal ki k’aslemaal saqara’ kirjiij ri ch’abik riij chetaq junam rib’anik ramaal jun jupuq tinimiit ri, kib’anb’aal purwe’ tujneem chapam jun kyaj pixb’aneem re ri b’anik tujneem, rmaal jun b’anb’aal re ri chomxiik riij li tzujneem, xaqara’ re karaq taj riij ru utzilaal, xaqara’ ki k’istaj kan otz laj rib’ixik, ru utzilaal, xaqara’ ri chomxik riij li chomneem raqtajek. Chapam li chomneem ri kiltaj chapam che li b’ananeem re tujneem kikiraqkib’ chapam li chaak, chapam li chomb’aal, chapam ri kojik ch’ich’ re jyb’aal chomneem xaqara’ tzujneem, xaqara’ kiltaj chapaam ri b’antajiik li tujneel. Namaq taq k’isb’aneem: Jun kyaj pixb’aneem purwe’ tujneem chapam tujb’aal re tinmiit, el li ka k’amb’ik chapam pi tujb’aal, taq tanaj, xaqara’ chapam li namaq taq tujb’aal kab’an chapam ri b’anab’aal re ajar taq tziij, pa tanaj xaqara’, re utzilaal re winaqiil, xaqara’ kirb’aj ri b’anab’aa’l.

ABSTRACT This article discusses aspects of the Educational Practice in four state universities in: Colombia, Brazil, Argentina, and Chile. We also take into account the conceptual orientations in teacher training proposed by Feiman (1990) and Imbernon (2007). The research approach is qualitative and aims to understand intrinsic, regional, cultural, and political aspects of educational practice related to pedagogical orientations, through a process of fluctuating pre-analysis of information, coding and identification of categories. The final stage consisted of description, categorization, inference and interpretation of the information collected. The results show that pedagogical orientations converge in action, reflection, knowledge, the use of digital information and communication technologies, and in the development of the teaching identity. Main conclusions: the predominant pedagogical orientations in the state education are the academic and the technical, and in the universities were identified the traditional, academic, social effectiveness, hermeneutics, and process-centered.

RESUMO O artigo discute aspectos do Estagio Supervisionado em quatro universidades oficiais ou da nação, uma por cada país, em Colômbia, Brasil, Argentina e Chile e está em relação com as Orientações Pedagógicas propostas por Feiman (1990) e Imbernon (2007). Enfoque qualitativo de pesquisa, procurando compreender aspectos intrínsecos, regionais, culturais e políticos do Estagio Supervisionado relacionado com as Orientações Pedagógicas, mediante um processo de pré-análise flutuante da informação, a codificação e identificação de categorias e finalmente a descrição, categorização, Inferência e Interpretação da informação recolhida. Resultados: as Orientações Pedagógicas convergem na ação, reflexão, ação, no conhecimento, no uso da Tecnologia Digital da Informação e Comunicação, e no desenvolvimento da identidade docente; conclusões principais: As Orientações Pedagógicas predominantes no Estagio Supervisionado são Académica e Técnicista no oficial, nas universidades são Tradicional, Académica, Eficácia Social, Hermenêutica e Centrada nos Processos.

https://doi.org/10.19053/01227238.7576 1178 downloads

Influência da Temperatura da Superfície do Mar na Ocorrência de Linhas de Instabilidade na Costa Norte e Nordeste do Brasil
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Silva, Madson Tavares

; Alcântara, Clênia Rodrigues

; Souza, Enio Pereira de

; Olinda, Ricardo Alves de

; Gonçalves, Weber Andrade

Revista Brasileira de Meteorologia

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jun 2017, Volume 32 N. 2 Pages 260 - 268

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

Resumo Neste trabalho objetivou-se verificar as possíveis relações de pontos amostrais da temperatura da superfície do mar distribuídos espacialmente no Atlântico Tropical e o desenvolvimento de linhas de instabilidade atuantes na costa Norte e Nordeste do Brasil utilizando-se de técnicas de modelagem linear generalizada. Para isso, foram usados modelos lineares generalizados a partir da regressão linear de Poisson e da Binomial Negativa. Na análise das relações instituídas pela modelagem foi aplicada o teste de variância ANOVA com nível de significância de 0,05 de probabilidade para determinar que variáveis independentes foram mais significativas. Também foram analisados os resíduos gerados pelo ajuste dos modelos no intuito de identificar a distribuição que melhor se ajustasse aos dados. Toda análise estática foi realizada no software R. Entre os 132 pares de observações, a magnitude do coeficiente de correlação linear de Pearson (r) oscilou entre 0,06 (p < 0,04) entre (LI e TSM5) e 0,88 (p < 0,0001) entre (TSM2 e TSM5). Apesar das relações de TSM e episódios de LI apresentarem ausência de relação linear ou relação linear positiva perfeita, do ponto de vista estatístico, estas relações foram significativas. Os resultados obtidos pelo modelo da Binomial Negativa apresentaram menores resíduos, todavia, o modelo de Poisson foi ainda significativo do ponto de vista estatístico. Os pontos de extração dos valores da temperatura da superfície do mar (TSM2, TSM5 e TSM10) apresentaram as maiores contribuições na explicação da variabilidade dos episódios de linhas de instabilidade no Norte e Nordeste do Brasil.

Abstract This work aimed to verify the possible relationships of sampling points of the sea surface temperature spatially distributed in the tropical Atlantic and the development of squall lines in North northeast coast of Brazil using techniques of generalized linear modeling. For this, we used generalized linear models from the linear regression Poisson and negative binomial, for analysis of the relationship established by modeling was applied ANOVA variance test with significance level of 0.05 probability to determine which independent variables were more significant in modeling. Also the waste generated by the adjustment of the models in order to identify the distribution that best fitted the data were analyzed. All static analysis was performed in R. software Among the 132 pairs of observations, the magnitude of the correlation coefficient of Pearson (r) ranged from 0.06 (p < 0.04) between (LI and TSM5) and 0.88 (p < 0.0001) (TSM2 and TSM5), despite relations TSM and episodes of LI present no linear relationship or perfect positive linear relationship between the observations still rather have the significant statistical point of view. The results obtained by the negative binomial model had lower waste; however, the Poisson model was also significant from a statistical point of view. The points of extraction temperature values of sea surface (TSM2, TSM5 and TSM10) had the highest contributions in explaining the variability of episodes of instability lines in the north-northeastern Brazil.

https://doi.org/10.1590/0102-77863220003 2237 downloads

Effect of Embryo Thermal Stimulation on the Serum Levels of Immunoglobulins and Corticosterone, and Organ Histopathology of 1 day-old Broilers
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Flores, F

; Nääs, IA

; Garcia, RG

; Quinteiro, WMQ

; Souza, LI

Brazilian Journal of Poultry Science

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dec 2016, Volume 18 N. spe2 Pages 71 - 78

Abstract: En | Text: En | PDF: En

ABSTRACT Embryo thermal stimulation has been studied as a means to promote epigenetic changes and to improve broiler health and performance. This study aimed at evaluating immunoglobulin (IgM, IgG, and IgA) titers, serum corticosterone levels, and organ integrity of day-old male Cobb(r) and Ross(r) broilers. Embryos were submitted to hot and cold stimuli (thermal stimulation) on days 14-18 of incubation. The thermal manipulation treatments did not affect immunoglobulin titers of 1 day-old Cobb(r) or Ross(r) chicks, and caused severe bursal lesions (scores 3 and 4) in both strains. However, serum corticosterone levels of Cobb(r) chicks were higher when embryos were submitted to hot stimulus (+1.39ºC) compared with cold stimulus (+36 ºC). Serum corticosterone levels of Ross(r) chicks were not affected by embryo temperature manipulation. The only effect of broiler breeder age was observed on IgM titers of Cobb(r) chicks, which were higher in chicks from 33-wk-old breeders. Further studies are needed to detect the optimal period of embryo thermal stimulation.

https://doi.org/10.1590/1806-9061-2016-0254 1206 downloads

10.

Immunoexpression of Cell Proliferation Markers in Oral Squamous Cell Carcinoma
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Pereira, Joabe dos Santos

; Barroso, Keila Martha Amorim

; Nonaka, Cassiano Francisco Weege

; Pinto, Leão Pereira

; de Souza, Lélia Batista

International journal of odontostomatology

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dec 2016, Volume 10 N. 3 Pages 513 - 520

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

This study aimed to assess the immunoexpression of cell proliferation markers (Ki-67 and Mcm-2) in oral tongue cancer, correlating it with patients' age and prognostic indicators. Sample was composed of 22 cases under 40 years and 22 over 50 years of age. Clinical staging and histological grade of malignancy were obtained. Cell proliferation was evaluated through labeling indices. Statistical analysis was performed (p<0.05 for statistical significance). Most young patients were stages III/IV (n=13/65 %) and most older patients were stages I/II (n=11/61.1 %) (p>0.05). Mean Ki-67-LI in young and older patients was 42.4 % and 44.15 %, respectively (p>0.05). Mean Mcm-2-LI was higher in older (63.6 %) than in young patients (55.75 %) (p<0.05). We found that young patients presented more aggressive lesions in comparison to older patients, however Mcm-2 expression was significantly higher in older than in young patients. SCC of tongue can be more aggressive in young patients, and this may not be related to cell proliferation. Our findings for Mcm-2 LI and Ki-67 LI suggests that Mcm-2 could be a more sensitive marker for cell proliferation.

Este estudio tuvo como objetivo evaluar la inmunoexpresión de marcadores de proliferación celular (Ki-67 y Mcm-2) en el cáncer de lengua oral, correlacionándolo con la edad de los pacientes y los indicadores pronósticos. La muestra estuvo compuesta por 22 personas menores de 40 años y 22 personas mayores de 50 años. Se identificaron los estadios clínicos y el grado histológico de malignidad. La proliferación celular se evaluó mediante índices de marcado. Se realizó análisis estadístico (p <0,05 para significación estadística). La mayoría de los pacientes jóvenes eran estadios III / IV (n = 13/65 %) y la mayoría de los pacientes mayores eran estadios I / II (n = 11 / 61,1 %) (p> 0,05). La media de Ki-67-LI en pacientes jóvenes y mayores fue 42,4% y 44,15%, respectivamente (p> 0,05). La media de Mcm-2-LI fue mayor en pacientes mayores (63,6 %) que en pacientes jóvenes (55,75 %) (p <0,05). Se encontró que los pacientes jóvenes presentaron lesiones más agresivas en comparación con los pacientes mayores, sin embargo la expresión de Mcm-2 fue significativamente mayor en pacientes mayores que en pacientes jóvenes. SCC de la lengua puede ser más agresivo en pacientes jóvenes, y esto no puede estar relacionado con la proliferación celular. Nuestros hallazgos para Mcm-2 LI y Ki-67 LI sugieren que Mcm-2 podría ser un marcador más sensible para la proliferación celular.

822 downloads

11.

Fibroblast Viability after Storage at 20 °C in Milk, Hank's Balanced Salt Solution and Coconut Water
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Souza, Beatriz Dulcineia Mendes de

; Alves, Ana Maria Hecke

; Santos, Luciane Geanini Pena dos

; Simões, Claudia Maria de Oliveira

; Felippe, Wilson Tadeu

; Felippe, Mara Cristina Santos

Brazilian Dental Journal

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aug 2016, Volume 27 N. 4 Pages 404 - 407

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

Resumo O objetivo deste estudo foi avaliar a efetividade de vários meios de conservação a 20 °C em manter a viabilidade de fibroblastos do ligamento periodontal humano (FLPH) ao longo do tempo. FLPH foram conservados a 20 °C em leite desnatado (LD), leite integral (LI), solução salina balanceada de Hank (HBSS) recém preparada, Save-A-Tooth(r) (Save), água de coco natural (ACN), água de coco industrializada (ACI) e água de torneira (água - controle negativo) por 3, 6, 24, 48, 72, 96 e 120 h. Células conservadas em Meio Essencial Mínimo (MEM-37) a 37 °C serviram como controle-positivo. A viabilidade celular foi determinada pelo ensaio MTT. A análise estatística dos dados foi realizada pelos testes Kruskal-Wallis e Scheffé (α=5%). A partir de 24 h, ACN foi significantemente melhor em manter a viabilidade celular do que todos os outros meios testados (p<0,05). LD e LI foram significantemente melhores do que a HBSS por até 72 h. Save e ACI foram os piores meios de conservação. Concluindo, a efetividade dos meios de conservação testados em manter a viabilidade das células do ligamento periodontal foi a seguinte em ordem decrescente: ACN > MEM-37 > LD e LI > HBSS > ACI > Save > água.

Abstract The objective of this study was to evaluate the effectiveness of various storage media at 20 °C in maintaining the viability of human periodontal ligament fibroblasts (HPLF) over time. HPLF were maintained at 20 °C in skim milk (SM), whole milk (WM), freshly prepared Hank's balanced salt solution (HBSS), Save-A-Tooth(r), natural coconut water (NCW), coconut water industrialized (ICW) and tap water (negative control) for 3, 6, 24, 48, 72, 96 and 120 h. Cells maintained in Minimal Essential Medium (MEM-37) at 37 °C served as a positive control. Cell viability was determined by MTT assay. Statistical analysis was performed by Kruskal-Wallis test and Scheffe test (α = 5%). From 24 h, NCW was significantly better in maintaining cell viability than all other tested storage media (p<0.05). SM and WM were significantly better than HBSS for up to 72 h. Save-A-Tooth(r) and ICW were the worst conservation storage media. In conclusion, the effectiveness of the tested storage media to maintain the viability of the periodontal ligament cells was as follows, in a descending order: NCW > MEM-37> SM and IM> HBSS> ICW > Save-A-Tooth(r)> tap water.

https://doi.org/10.1590/0103-6440201600748 1569 downloads

12.

II Diretrizes Brasileiras de Fibrilação Atrial
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Magalhães, LP

; Figueiredo, MJO

; Cintra, FD

; Saad, EB

; Kuniyoshi, RR

; Teixeira, RA

; Lorga Filho, AM

; D'Avila, A

; de Paola, AAV

; Kalil, CA

; Moreira, DAR

; Sobral Filho, DC

; Sternick, EB

; Darrieux, FCC

; Fenelon, G

; Lima, GG

; Atié, J

; Mateos, JCP

; Moreira, JM

; Vasconcelos, JTM

; Zimerman, LI

; Silva, LRL

; Silva, MA

; Scanavacca, MI

; Souza, OF

Arquivos Brasileiros de Cardiologia

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apr 2016, Volume 106 N. 4 Pages 1 - 22

Abstract: Pt | Text: Pt | PDF: Pt

https://doi.org/10.5935/abc.20160055 93616 downloads

13.

Control of globe fringerush ( Fimbristylis miliacea ) and selectivity to rice crop irrigated with bispyribac-sodium + metsulfuron-methyl associated with adjuvants
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Tormena, Tadeu

; Kashiwaqui, Marcos Massuo

; Maciel, Cleber Daniel de Goes

; Souza, João Igor de

; Soares, Carlos Rafael Brandalize

; Pivatto, Ricardo Ângelo Deparis

; Helvig, Enelise Osco

; Silva, André Augusto Pazinato da

; Karpinski, Ricardo André Kloster

Arquivos do Instituto Biológico

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2016, Volume 83 elocation e0952014

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

RESUMO: O objetivo deste trabalho foi avaliar o controle de cominho (Fimbristylis miliacea ) e a seletividade à cultura do arroz irrigado com a mistura em tanque de bispyribac-sodium + metsulfuron-methyl associada a adjuvantes. Conduziu-se o experimento no município de Douradina (23º12'32,0" Sul, 53º17'39,9" Oeste), PR, no ano agrícola 2012/2013. O delineamento experimental utilizado foi o de blocos completos casualizados com dez tratamentos e quatro repetições. Os tratamentos foram constituídos pela aplicação da mistura em tanque dos herbicidas bispyribac-sodium + metsulfuron-methyl, em duas doses (32+1,3 e 40+3,3 g i.a. ha-1), e com adjuvantes Iharaguen(r) (375 mL.ha-1), Orobor N1(r) (75 mL.ha-1), LI 700(r) (150 mL.ha-1) e TA 35(r) (50 mL.ha-1), assim como de testemunha capinada e sem capina. Apesar de a eficácia de controle de cominho (F. miliacea ) com a mistura em tanque de bispyribac-sodium + metsulfuron-methyl associada aos adjuvantes Iharaguen(r) e Orobor N1(r) ter sido significativamente superior ao LI 700(r) e TA 35(r), não foram constatadas diferenças significativas entre os tratamentos em termos de seletividade e produtividade de grãos para o cultivar de arroz Epagri 108.

ABSTRACT: This study aimed to evaluate the control of globe fringerush (Fimbristylis miliacea ) and selectivity to rice crop irrigated with an in-tank mixture of bispyribac-sodium + metsulfuron-methyl associated with adjuvants. The experiment was conducted in the municipality of Douradina, Paraná state, Brazil (23º12'32.0" South, 53º17'39.9" West), in the agricultural year of 2012/2013. An experimental randomized complete block design with ten treatments and four replications was used. The treatments consisted of applying an in-tank mixture of the herbicides bispyribac-sodium + metsulfuron-methyl at two doses (32+1.3 and 40+3.3 g ai ha-1) associated with the adjuvants Iharaguen(tm) (375 mL.ha-1), Orobor N1(tm) (75 mL.ha-1), LI 700(tm) (150 mL.ha-1) and TA 35(tm) (50 mL.ha-1), as well as weeded and unweeded control. Although the effectiveness of globe fringerush (F. miliacea ) control with the in-tank mixture of the herbicides bispyribac-sodium + metsulfuron-methyl associated with Iharaguen(tm) and Orobor N1(tm) has been significantly higher than the effectiveness of these herbicides associated with LI 700(tm) and TA 35(tm), there were no significant differences among the treatments in terms of selectivity and grains yield of the rice cultivar Epagri 108.

https://doi.org/10.1590/1808-1657000952014 1324 downloads

14.

A Brazilian original pedagogical approach to the teaching of neurology
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Magalhães, Lucas Vilas Bôas

; Fernandes, Paula Teixeira

; Magalhães, Daniel de Souza Ferreira

; Bastos, Ricardo Rocha

; Min, Li Li

Arquivos de Neuro-Psiquiatria

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oct 2014, Volume 72 N. 10 Pages 747 - 752

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

O método Decisões Clínicas/Oficinas Diagnósticas (DC/OD) é usado com sucesso na graduação médica no Brasil. Objetivo Apresentar o método DC/OD usando o exemplo do Acidente Vascular Encefálico, assim como os resultados de sua aplicação pré-experimental e de um estudo comparativo com o método tradicional (aula mais discussão de casos). Método Aplicação de questionários de opiniões e de questionários de conhecimentos, atitudes e percepções para investigar a não inferioridade do método DC/OD. Resultados DC/OD foi bem aceito por professores e estudantes. A principal crítica foi o tempo necessariamente longo para os estudantes completá-lo, característica que pode atender às diferentes necessidades educacionais. O estudo comparativo demonstrou que o método DC/OD levou a uma aquisição cognitiva maior que o tradicional, demonstrando sua não inferioridade. Conclusão O método DC/OD parece ser uma alternativa para o ensino da neurologia na graduação médica, com a vantagem de respeitar o diferente tempo de aprendizado dos estudantes.

The two-arm Clinical Decisions/Diagnostic Workshop (CD/DW) approach to undergraduate medical education has been successfully used in Brazil. Objective Present the CD/DW approach to the teaching of stroke, with the results of its pre-experimental application and of a comparative study with the traditional lecture-case discussion approach. Method Application of two questionnaires (opinion and Knowledge-Attitudes-Perceptions-KAP) to investigate the non-inferiority of the CD/DW approach. Results The method was well accepted by teachers and students alike, the main drawback being the necessarily long time for its completion by the students, a feature that may better cater for different educational needs. The comparative test showed the CD/DW approach to lead to slightly higher cognitive acquisition as opposed to the traditional method, clearly showing its non-inferiority status. Conclusion The CD/DW approach seems to be another option for teaching neurology in undergraduate medical education, with the bonus of respecting each learner`s time.

https://doi.org/10.1590/0004-282X20140136 2294 downloads

15.

Dry reforming of methane at moderate temperatures over modified Co-Al Co-precipitated catalysts
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Souza, Guilherme de

; Marcilio, Nilson Romeu

; Perez-Lopez, Oscar William

Materials Research

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aug 2014, Volume 17 N. 4 Pages 1047 - 1055

Abstract: En | Text: En | PDF: En

M-Co-Al (M = Ca, La, Li or Mg) materials were synthesised by co-precipitation and investigated for dry reforming of methane. Thermogravimetry, temperature-programmed oxidation, reduction and CO2 desorption, specific area and X-ray diffraction were utilised for characterisation. Activity tests were conducted at atmospheric pressure, temperatures between 400-550ºC , CH4/CO2 molar ratio of 1 and GHSV of 6000 NmL CH4·g-1·h-1. The partial substitution of Co by a third element increased the area and changed the acid/base properties, reducibility and crystallinity of the oxides. These modifications resulted in higher activity for dry reforming of methane, mainly related to the decrease in the acidity of the promoted materials and, consequently, lower carbon formation. The Li-modified sample presented the lowest coke deposition due to the increase in stronger basic sites. The Mg-promoted catalyst exhibited the best activity performance. This depicts the enhancement in the reducibility and acid/base properties found in the MgCoAl sample.

https://doi.org/10.1590/1516-1439.269614 4346 downloads

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