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Abstract This work describes the circulation over the continental slope and the São Paulo Plateau in the Santos Basin during the SANSED winter 2019 survey. The cruise consisted of four legs in the period between June, 11 and August, 03 2019. The observed circulation is dominated by the Atlantic southwestern boundary current regime and remotely-generated anticyclones and cyclones. The former is composed by the Brazil Current, the Intermediate Western Boundary Current and their mesoscale meanders; the latter are 300km vortical rings with origin in the eastern side of the South Atlantic Basin. A Lagrangian scheme applied over satellite altimeter maps indicate that the origin of these rings is primarily the Cape Basin of South Africa. The interaction between the boundary currents, their cyclonic meanders, and the anticyclonic rings is complex, and varies widely. During the SANSED winter 2019 survey period, three anticyclones interacted with the Brazil Current, instabilizing it, forming dipoles with the current cyclonic meanders, leading to their downstream propagation. Ancienter cyclonic eddies within Santos Basin may interfere with the propagation of the large anticyclones further south. In addition, the continuous arrival of remotely-originated anticyclones, the larger portion over the São Paulo Plateau presented a tendency of counter-clockwise circulation during the whole cruise period.

https://doi.org/10.1590/2675-2824071.2206icas

Hydrographic structure of the continental shelf in Santos Basin and its causes: The SANAGU and SANSED campaigns (2019)
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Dottori, Marcelo

; Sasaki, Dalton K.

; Silva, Danilo A.

; Del–Giovannino, Sergio R.

; Pinto, Andressa P.

; Gnamah, Magnim

; Santos, Arian D.

; Silveira, Ilson C. A. da

; Belo, Wellington C.

; Martins, Renato P.

; Moreira, Daniel L.

Ocean and Coastal Research

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2023, Volume 71 Supl. 3 elocation e23013

Resumo: En | Texto: En | PDF: En

Abstract This study describes the hydrography and water masses of the Santos Basin Continental Shelf (SBCS) during two hydrographic campaigns (SANAGU, SANSED) in 2019. Coastal Water (CW) is the dominant water mass in the southern portion of the SBCS, with relatively low salinity values (S<35.5 g kg–1), and satellite data show that local precipitation and river discharge could not account for the low salinity observed during the cruises in the southern region of the domain. The low salinity observed is explained by the transport from the south influenced by Subtropical Shelf Water (STSW), which was influenced by the La Plata River discharge. In the northern region of the SBCS, the South Atlantic Central Water (SACW) dominates the bottom layers of the water column, with the wind playing a major role in the uplift of this water mass, as evidenced by a wind impulse analysis. In this part of the shelf, Tropical Water (TW) was the second water mass in volume and occupied the surface layers and offshore the shelf. CW is restricted to a thin surface layer, which reaches distances of a few kilometers from the coast. Our analysis show the differences in the hydrographic structure of the SBCS and suggests that the SBCS can be divided in two regions with distinct characteristics: 1) the area southwest of São Sebastião, where the hydrographic parameters were modulated by the presence of the Subtropical Shelf Water (STSW); 2) the area northeast of São Sebastião, where the uplifting of SACW was the dominant process.

https://doi.org/10.1590/2675-2824071.22062md

Multidisciplinary Scientific Cruises for Environmental Characterization in the Santos Basin – Methods and Sampling Design
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Moreira, Daniel L.

; Dalto, Adriana G.

; Figueiredo JR, Alberto G.

; Valerio, Aline M.

; Detoni, Amalia M. S.

; Bonecker, Ana C. T.

; Signori, Camila N.

; Namiki, Cláudia

; Sasaki, Dalton K.

; Pupo, Daniel V.

; Silva, Danilo A.

; Kutner, Deborah S.

; Duque-Castaño, Diana C.

; Marcon, Eduardo H.

; Gallotta, Fabiana D. C.

; Paula, Fabiana S.

; Gallucci, Fabiane

; Roque, Gabriela C. F.

; Campos, Giulia S.

; Fonseca, Gustavo

; Mattos, Gustavo

; Lavrado, Helena P.

; Silveira, Ilson C. A. da

; Costa, Jessica O.

; Santos Filho, João R. dos

; Carneiro, Juliane C.

; Moreira, Julio C.F.

; Rozo, Laura

; Araujo, Leandro F.M.

; Lazzari, Letícia

; Silva, Letícia O. da

; Michelazzo, Luan S.

; Fernandes, Luciano F.

; Dottori, Marcelo

; Araújo Jr., Marcus A. G. de

; Chuqui, Mateus G.

; Ceccopieri, Milena

; Borges-Silva, Milton

; Kampel, Milton

; Bergo, Natascha M.

; Silva, Paulo V. M.

; Tura, Pedro M.

; Moura, Rafael B. de

; Romano, Renato G.

; Martins, Renato P.

; Carreira, Renato S.

; Toledo, Rodrigo G.A.

; Bonecker, Sérgio L.C.

; Disaró, Sibelle T.

; Rodrigues, Silvana V.

; Corbisier, Thais N.

; Vicente, Thaisa M.

; Paiva, Vitor G. de

; Pellizari, Vivian H.

; Belo, Wellington C.

; Brandini, Frederico P.

; Sousa, Silvia H.M

Ocean and Coastal Research

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2023, Volume 71 Supl. 3 elocation e23022

Resumo: En | Texto: En | PDF: En

Abstract The Santos Basin (SB) is the main petroliferous basin in the Brazilian continental margin and one of the most studied marine areas in Brazil. However, historical data suggest that new efforts should be carried out to acquire quantitative biological data, especially in the deep sea, to establish the baseline of essential ocean variables in different ecosystems for future monitoring programs. The Brazilian energy company Petrobras planned and executed 24 oceanographic cruises over a period of 2 years to assess the benthic (SANSED cruise) and pelagic (SANAGU cruise) systems of the SB (356 days at sea in 2019 and 2021/2022). These efforts were part of the Santos Project, which comprised a comprehensive environmental study aimed at investigating benthic and pelagic variables to characterize ecology, biogeochemistry, thermohaline properties of water masses, and ocean circulation patterns, geomorphology, and sedimentology, as well as organic and inorganic chemistry. Here we present the detailed sampling designs and the field methods employed on board, during the SB scientific cruises. All sampling protocols were based on standardized approaches. For the benthos analyses, triplicate sediment samples were performed using a GOMEX-type box corer (0.25 m²) or a large modified Van Veen grab (0.75 m²) at 100 stations ranging from 25 to 2400 m depth. At each station, 25 geochemical and physico-chemical parameters were analyzed in addition to micro-, meio-, and macrofauna and living foraminifera samples. For the pelagic system, 60 stations were selected to investigate the plankton community, ranging in size from pico- to macroplankton, through vertical, horizontal, and oblique net hauls (20, 200, and 500 μm mesh size), as well as 25 biogeochemical parameters collected with an aid of a CTD-rosette sampler. Part of this scientific information also serves the Regional Environmental Characterization Project (PCR-BS) in support of Petrobras’ Santos Basin drilling licensing process led by the Brazilian Environmental Agency – IBAMA. This project contributes to the sustainable development of the SB, in line with the guidelines of the United Nations Decade of Ocean Science for Sustainable Development.

https://doi.org/10.1590/2675-2824071.22072dlm

A vertical-mode extrapolation scheme applied to the Brazil Current domain: quasi-synoptic scenarios
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Amorim, João P. M.

; Silveira, Ilson C. A. da

; Borges-Silva, Milton

; Souza-Neto, Pedro W. M.

; Belo, Wellington C.

; Lazaneo, Cauê Z.

; Bernardo, Piero S.

; Dottori, Marcelo

; Martins, Renato P.

; Moreira, Daniel L.

Ocean and Coastal Research

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2022, Volume 70 Supl. 1 elocation e22055

Resumo: En | Texto: En | PDF: En

Abstract The Brazil Current (BC) is a western boundary current, with an average vertical extension of 500 m, which occupies the southwestern margin of Atlantic Ocean. Recently, the South Brazil Bight - SBB (23º S - 28º S) has been intensively explored by the oil and gas industries, which brought a high demand in operational oceanography and ocean state monitoring. In this study we present a new technique based on the vertical dynamic modes of oscillation, to extrapolate velocity profiles in the SBB, with potential applications to data acquired by Vessel Mounted Acoustic Doppler Current Profilers (VMADCP). Using four quasi-synoptic crosssectional velocity data, acquired by Lowered Acoustic Doppler Current Profilers (LADCP), we observed that the mean circulation of this region can be characterized as a 2-dynamical mode system. This mean circulation is mainly dominated at surface by the BC and at intermediate levels by the Intermediate Western Boundary Current (IWBC), which flows northward. Furthermore, observed mesoscale vortical features in the SBB, such as eddies and meanders, are shown to be primarily barotropic-mode dominated. In our extrapolation methodology, the use of an independent set of velocity time series obtained by four moorings has shown to be a valid way for obtaining the relative contribution of each dynamical mode in the velocity field in the SBB. Normalized mean squared errors below 10% and radar diagrams show that the presented methodology was able to reproduce the main dynamic features observed by LADCP transects. Also, with this technique, we extrapolated three VMADCP sections and the results agreed with previous observations.

https://doi.org/10.1590/2675-2824070.22141jpma

Immature life cycle of laboratory-reared Phylloicus elektoros and Phylloicus amazonas (Trichoptera: Calamoceratidae) from a central Amazonian stream
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MARTINS, Renato Tavares

; SOARES, Kleicy Maciel

; HAMADA, Neusa

Acta Amazonica

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Mar 2021, Volume 51 Nº 1 Páginas 67 - 70

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Nós criamos massas de ovos dos tricópteros Phylloicus amazonas (n = 2) e Phylloicus elektoros (n = 7) coletadas no campo até a fase adulta. A mediana do tempo de desenvolvimento do primeiro instar larval ao adulto foi de 229 dias para P. amazonas e 275 dias para P. elektoros, incluindo o tempo de desenvolvimento pupal (mediana de 13.5 e 16 dias, respectivamente). Fragmentadores têm sido frequentemente usados em estudos relacionados ao processamento de matéria orgânica em ecossistemas aquáticos. As informações biológicas fornecidas neste estudo podem ser úteis para o planejamento de estudos experimentais em campo ou em condições de laboratório.

ABSTRACT We reared field-collected egg masses of the caddisflies Phylloicus amazonas (n = 2) and Phylloicus elektoros (n = 7) to adulthood. First instar larvae of both species hatched up to five days after field collection. Median development time from first larval instar to adult was 229 days for P. amazonas and 275 for P. elektoros, including the pupal development time (median of 13.5 and 16 days, respectively). Shredder organisms have been used frequently in studies related to organic matter processing in freshwater ecosystems. The biological information reported in here may be useful for the design of experimental studies in the field or under laboratory conditions.

https://doi.org/10.1590/1809-4392202003861 385 downloads

Can we expect similar behavior among CuNiTi 35°C wires?
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GONZAGA, Ariane Salgado

; GONZAGA, David Salgado

; SIMPLÍCIO, Hallissa

; MARTINS, Renato Parsekian

; GALVÃO, Marília Regalado

; CALDAS, Sergei Godeiro Fernandes Rabelo

Dental Press Journal of Orthodontics

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2021, Volume 26 Nº 2 elocation e211945

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: O presente artigo teve como objetivo verificar as propriedades termodinâmicas, mecânicas e químicas de fios CuNiTi 35°C comerciais. Métodos: Foram utilizados 40 arcos termodinâmicos pré-contornados de cobre-níquel-titânio de 0,017” x 0,025” e temperatura Af de 35°C. Oito fios de cinco fabricantes diferentes (American Orthodontics® [G1], Eurodonto® [G2], Morelli® [G3], Ormco® [G4] e Orthometric® [G5]) foram submetidos a medições de suas secções transversais, testes de tração, MEV-EDS e calorimetria diferencial (DSC). Foram utilizados testes paramétricos (One-way ANOVA e pós-teste de Tukey), com nível de significância de 5%, e foi realizado o teste do coeficiente de correlação de Pearson entre a temperatura Af e os elementos químicos dos fios. Todos os testes das amostras e análises estatísticas foram duplo-cegos. Resultados: Todos os fios apresentavam dimensões padronizadas (0,017” x 0,025”) e comportamento superelástico, com forças médias de platô de G1 = 36,49 N; G2 = 27,34 N; G3 = 19,24 N; G4 = 37,54 N; e G5 = 17,87 N. As médias de Af foram: G1 = 29,40°C, G2 = 29,13°C e G3 = 31,43°C, com p> 0,05 entre si. G4 (32,77°C) e G5 (35,17°C) apresentaram diferenças estatisticamente significativas entre si e entre os demais grupos. Todas as amostras apresentaram Ni, Ti, Cu e Al em diferentes concentrações. Conclusões: A concentração química dos elementos que compõem a liga influenciou significativamente as propriedades termodinâmicas e mecânicas.

ABSTRACT Objective: This paper aims to verify the thermodynamic, mechanical and chemical properties of CuNiTi 35ºC commercial wires. Methods: Forty pre-contoured copper-nickel-titanium thermodynamic 0.017 x 0.025-in archwires with an Af temperature of 35°C were used. Eight wires from five different manufacturers (American Orthodontics® [G1], Eurodonto® [G2], Morelli® [G3], Ormco® [G4] and Orthometric® [G5]) underwent cross-sectional dimension measurements, tensile tests, SEM-EDS and differential scanning calorimetry (DSC) tests. Parametric tests (One-way ANOVA and Tukey post-test) were used, with a significance level of 5%, and Pearson’s correlation coefficient test was performed between the Af and chemical elements of the wires. All sample tests and statistical analyses were double-blinded. Results: All wires presented standard dimensions (0.017 x 0.025-in) and superelastic behavior, with mean plateau forces of: G1 = 36.49N; G2 = 27.34N; G3 = 19.24 N; G4 = 37.54 N; and G5 = 17.87N. The Af means were: G1 = 29.40°C, G2 = 29.13°C and G3 = 31.43°C, with p>0.05 relative to each other. G4 (32.77°C) and G5 (35.17°C) presented statistically significant differences between each other and among the other groups. All samples presented Ni, Ti, Cu and Al in different concentrations. Conclusions: The chemical concentration of the elements that compose the alloy significantly influenced the thermodynamic and mechanical properties.

https://doi.org/10.1590/2177-6709.26.2.e211945.oar 164 downloads

Influence of psychosocial factors on the effectiveness of infertility treatments
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Pereira, Beatriz Sá

; Martins, Renato Silva

; Brito, Cristina Batista

; Pereira, Paulo Almeida

Acta Obstétrica e Ginecológica Portuguesa

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Dez 2020, Volume 14 Nº 4 Páginas 208 - 216

Resumo: En | Texto: En | PDF: En

Abstract Overview and Aims: Infertility is a rising problem in our society, with an increasing prevalence in the past years, resulting of an interaction of multifactorial causes, with great demand and personal suffering, being imperative to adopt an integrated view where physiology is intimately related to social and psychological processes. This study aims to identify the factors that contribute to the effectiveness of infertility treatments and overall outcomes of pregnancy and birth, with a special focus on the psychosocial component. Study Design and Population: This is a retrospective, descriptive and causal study of 278 infertile couples followed from 2015 to 2018. Methods: Data was collected on the causes of infertility, the treatments performed, and their effectiveness. The aim was to cross these data with clinically relevant psychological symptoms, through Brief Symptom Inventory (BSI) and Fertility’s Problem Inventory (FPI), in order to assess the stress inherent to their condition. Results: Emotional disorders are significantly more prevalent in women (p<0.05), as well as social and sexual concerns. The Need for parenthood and the Rejection of childfree lifestyle are the problems that most concern both elements of the couple. Conclusions: It was found that the couple's psychosocial component has an influence on the infertility’s treatment process, with an impact on its outcome. Symptoms such as Depression, Hostility and Phobic anxiety were higher in women who did not become pregnant after the treatment, as well as in men. Results were even more enlightening regarding pregnancy. For women, somatization is related to abortion (p<0.05), as well as most symptoms of BSI; whereas for men, sexual and relationship concerns are associated with male etiology and less likelihood to give birth.

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Characterization of adverse drug events identified by trigger in Brazilian pediatric inpatients
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Silva, Lunara Teles

; Modesto, Ana Carolina Figueiredo

; Martins, Renato Rocha

; Lopes, Flavio Marques

Jornal de Pediatria

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Jun 2020, Volume 96 Nº 3 Páginas 393 - 401

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Descrever a frequência e as características dos eventos adversos a medicamentos em pacientes pediátricos internados em um hospital universitário terciário brasileiro. Métodos: Foi realizado um estudo transversal por meio da análise retrospectiva e manual de prontuários de 240 internações pediátricas para identificar eventos adversos a medicamentos utilizando 17 rastreadores. Quando foram identificados rastreadores no prontuário, os analistas investigaram extensivamente o prontuário para decidir a respeito da existência de um evento. O consenso sobre a ocorrência do evento foi obtido em reunião com uma equipe de profissionais da saúde. Os eventos foram classificados por categoria de dano e os medicamentos foram classificados de acordo com a Classificação Anatômica Terapêutico-Química. Os pacientes que sofreram eventos adventos foram comparados aos que não apresentaram eventos adversos, com o teste qui-quadrado e o teste U de Mann-Whitney. Resultados: Verificou-se um total de 62 eventos adversos e 18,8% dos pacientes apresentaram ao menos evento. As taxas de eventos adversos foram de 25,83 por 100 internações, 20,27 por 1.000 pacientes/dia, 25,94 por 1.000 medicamentos e 2,12 por 1.000 doses de medicamentos. Todos os eventos encontrados foram classificados como dano temporário e os medicamentos cardiovasculares foram frequentemente associados aos eventos. Grupos de pacientes com e sem eventos apresentaram diferenças (p < 0,05) em relação ao tempo de internação, número e doses de medicamentos. Conclusão: O uso de rastreadores demonstrou sua utilidade no contexto pediátrico ao identificar danos. As taxas de eventos adversos foram maiores do que as taxas de estudos anteriores, porém a categoria de dano foi menor que em outros estudos. Este estudo possibilita a medição dos eventos adversos a fim de definir estratégias para minimizar ou reduzir os danos.

Abstract Objective: To describe the frequency and characteristics of adverse drug events in pediatric inpatients in a Brazilian tertiary teaching hospital. Methods: A cross-sectional study was conducted by retrospective and manual chart review of 240 pediatric admissions to identify adverse drug events using 17 triggers. When triggers were detected in the chart, reviewers investigated the chart in depth to decide whether an event occurred. Consensus about the occurrence of the event was obtained in meeting with a healthcare team. Events were classified by harm category and drugs were classified according to the Anatomical Therapeutic Chemical Classification. Patients who had suffered were compared to those who had not experienced events using the chi-squared test and the Mann-Whitney U test. Results: A total of 62 adverse events were found, and 18.8% of the patients had at least one event. Adverse events rates were 25.83 per 100 admissions, 20.27 per 1000 patient-days, 25.94 per 1000 drugs, and 2.12 per 1000 drug doses. All events found were classified as temporary harm, and cardiovascular drugs were most frequently related to events. Groups of patients with and without event were segregated (p < 0.05) by the length of stay, number of drugs, and drug doses. Conclusion: The use of triggers demonstrated its utility in a pediatric setting by identifying harm. Adverse events rates were found to be higher than those of previous studies, but the harm rate was lower than other studies. This study enables the measurement of adverse events in order to define strategies to mitigate or reduce harm.

https://doi.org/10.1016/j.jped.2018.12.009 661 downloads

The Brazilian Portuguese version of the Pediatric Trigger Toolkit is applicable to measure the occurrence of adverse drug events in Brazilian pediatric inpatients
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Silva, Lunara Teles

; Modesto, Ana Carolina Figueiredo

; Martins, Renato Rocha

; Bessa, Gabriela Guimarães

; Lopes, Flavio Marques

Jornal de Pediatria

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Fev 2019, Volume 95 Nº 1 Páginas 61 - 68

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Descrever o processo de tradução, adaptação e validação para o português do Pediatric Trigger Toolkit: Measuring Adverse Drug Events in the Children's Hospital. Métodos: O processo de validação do instrumento de pesquisa foi realizado em 5 etapas: (I) tradução do inglês para o português por dois tradutores independentes; (II) síntese das versões traduzidas; (III) adaptação dos rastreadores para realidade brasileira por meio do método Delphi modificado, em duas rodadas; (IV) aplicação do instrumento de pesquisa na revisão de 240 internações de 2014; e (V) retrotradução do português para o inglês. Resultados: A etapa de tradução resultou em duas versões traduzidas, que foram sintetizadas de forma a obter equivalência ao contexto cultural brasileiro. O processo de adaptação do instrumento de pesquisa possibilitou a inclusão e adaptação dos rastreadores, bem como a exclusão de rastreadores segundo consenso obtido entre os especialistas na etapa Delphi. O valor preditivo positivo do instrumento de pesquisa foi de 13,51% e o rastreador anti-histamínico foi o que apresentou maior valor preditivo positivo. Conclusão: O instrumento de pesquisa pode ser utilizado para rastrear a ocorrência de eventos adversos a medicamentos em pacientes pediátricos nos hospitais brasileiros. Apesar das adaptações realizadas, rastreadores que não foram identificados ou com baixo valor preditivo positivo podem indicar, ainda, a necessidade de modificações. Entretanto, mais estudos são necessários antes de modificar ou excluir algum rastreador.

Abstract Objective: To describe the process of translation, adaptation, and validation of the Brazilian Portuguese version of the Pediatric Trigger Toolkit: Measuring Adverse Drug Events in the Children's Hospital. Methods: The validation process for the research instrument was carried out in five steps: (I) translation from English into Brazilian Portuguese by two independent translators; (II) synthesis of the translated versions; (III) adaptation of the triggers to the Brazilian context using a modified Delphi method carried out in two rounds; (IV) application of the research instrument in the review of 240 hospitalizations during 2014; and (V) back-translation from Brazilian Portuguese to English. Results: The translation step resulted in two versions, which were then synthesized to obtain equivalence within the Brazilian cultural context. The process of adapting the research instrument allowed the inclusion and adaptation of some triggers, as well as the exclusion of others, based on the consensus reached among experts during the Delphi step. The positive predictive value of the research instrument was 13.51%, and the antihistamine trigger presented the highest positive predictive value. Conclusion: The research instrument can be used to track the occurrence of adverse drug events in pediatric patients in Brazilian hospitals. Despite the adjustments made, triggers that were not identified or that had low positive predictive value can suggest the need for additional changes. However, more studies are needed before modifying or removing a trigger.

https://doi.org/10.1016/j.jped.2017.10.009 1178 downloads

10.

A EXPANSÃO PAULISTA EM AFONSO DE TAUNAY E SÉRGIO BUARQUE DE HOLANDA: REFLEXÕES E TRAJETÓRIAS
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Schneider, Alberto Luiz

; Martins, Renato

Revista de História (São Paulo)

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2019, Nº 178 elocation a01018

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O artigo discute as relações de proximidade e distância intelectual e institucional entre os historiadores Afonso de Taunay e Sérgio Buarque de Holanda. Um e outro, em períodos diferentes, engajaram-se na produção historiográfica acerca da expansão paulista no período colonial. Como se sabe, o chamado "bandeirismo" foi um dos mais importantes temas da historiografia brasileira - particularmente da historiografia paulista - na primeira metade do século XX. Taunay interpretou o fenômeno como um capítulo da construção do território e da própria nacionalidade brasileira. Sérgio Buarque compreendeu a expansão paulista a partir do apresamento indígena para as lavouras dos campos de Piratininga. A despeito das diferenças teóricas e metodológicas, as relações entre os dois historiadores foi intensa. Não menos importante, interessa ao artigo observar a inserção institucional dos historiadores em questão. Ambos, em períodos diversos, dirigiram o Museu Paulista e ocuparam a cadeira de História da Civilização Brasileira na Universidade de São Paulo.

Abstract This article discusses the intellectual and institutional relations of proximity and distance between the historians Afonso de Taunay and Sérgio Buarque de Holanda. Both of them, at different periods of time, dedicated themselves to historiographical production of the paulista expansion in the colonial period. The so-called bandeirismo was one of the most important themes of Brazilian historiography - in particular of the paulista historiography - in the first half of the 20th century. Taunay interpreted the phenomenon as a chapter of the territory construction and of the Brazilian nationality itself. Sérgio Buarque saw the paulista expansion from the indigenous captivity for the agriculture lands in Piratininga. Despite the theoretical and methodological differences, the relations between the two historians were intense. It is also of interest to this article to observe the institutional context of the historians in question. Both, in different periods of time, were directors of the Paulista Museum and occupied the chair of History of the Brazilian Civilization at the University of São Paulo.

https://doi.org/10.11606/issn.2316-9141.rh.2019.142456 596 downloads

11.

An interview with Giorgio Fiorelli
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Fiorelli, Giorgio

; Linhares, Gidalti Bueno

; Sakima, Maurício Tatsuei

; Martins, Renato Parsekian

; Oliveira, Wislei de

Dental Press Journal of Orthodontics

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Out 2018, Volume 23 Nº 5 Páginas 24 - 38

Resumo: En | Texto: En | PDF: En

https://doi.org/10.1590/2177-6709.23.5.024-038.int 2436 downloads

12.

The dynamics of energy metabolism in the tick embryo
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Martins, Renato

; Ruiz, Newton

; Fonseca, Rodrigo Nunes da

; Vaz Junior, Itabajara da Silva

; Logullo, Carlos

Revista Brasileira de Parasitologia Veterinária

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Set 2018, Volume 27 Nº 3 Páginas 259 - 266

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O carrapato bovino Rhipicephalus (B.) microplus é um ectoparasita capaz de transmitir diversos patógenos, sendo responsável por grandes perdas na pecuária pelos danos causados ao gado. Atualmente, muitos estudos têm negligenciado fases importantes do ciclo de vida deste parasita, como a fase embrionária. A embriogênese é classicamente descrita como um processo que demanda um consumo de energia, possibilitando a proliferação celular, diferenciação e crescimento. Além disso, em artrópodes, o estágio da embriogênese é caracterizado pela mobilização de metabolitos de origem materna para o desenvolvimento de novos tecidos e órgãos. A ressíntese de glicogênio no final da embriogênese tem sido descrita em diversas espécies de artrópodes, sendo considerada um indicador de integridade do embrião. No caso do R. (B.) microplus a ressíntese de glicogênio é sustentada pela degradação de proteínas durante a gliconeogênese, no terço final da embriogênese. Apesar dos recentes avanços, no estudo molecular e do metabolismo energético, os mecanismos envolvidos na dinâmica da utilização de diferentes substratos energéticos durante a embriogênese do carrapato R. (B.) microplus ainda é pouco entendido. Diante deste panorama, estudos que descrevam a regulação destes mecanismos e da associação do metabolismo de carboidratos com a transição materno zigótica, pode auxiliar na busca de novos alvos para o desenvolvimento de novos acaricidas e outras intervenções para o controle infestações de R. (B.) microplus.

Abstract The cattle tick Rhipicephalus (Boophilus) microplus is an ectoparasite capable of transmitting a large number of pathogens, causing considerable losses in the cattle industry, with substantial damage to livestock. Over the years, important stages of its life cycle, such as the embryo, have been largely ignored by researchers. Tick embryogenesis has been typically described as an energy-consuming process, sustaining cell proliferation, differentiation, and growth. During the embryonic stage of arthropods, there is mobilization of metabolites of maternal origin for the development of organs and tissues of the embryo. Glycogen resynthesis in late embryogenesis is considered as an effective indicator of embryonic integrity. In the cattle tick R.(B. (B.) microplus, glycogen resynthesis is sustained by protein degradation through the gluconeogenesis pathway at the end of the embryonic period. Despite recent advancements in research on tick energy metabolism at the molecular level, the dynamics of nutrient utilization during R. (B.) microplus embryogenesis is still poorly understood. The present review aims to describe the regulatory mechanisms of carbohydrate metabolism during maternal-zygotic transition and identify possible new targets for the development of novel drugs and other control measures against R. (B.) microplus infestations.

https://doi.org/10.1590/s1984-296120180051 1253 downloads

13.

Welding strength of NiTi wires
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Mesquita, Tatyane Ribeiro

; Martins, Lídia Parsekian

; Martins, Renato Parsekian

Dental Press Journal of Orthodontics

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Jun 2018, Volume 23 Nº 3 Páginas 58 - 62

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: identificar a potência mais adequada para solda elétrica em três marcas comerciais de fios de níquel-titânio (NiTi). Métodos: noventa pares de fios ortodônticos de NiTi, de dimensões 0,018” e 0,017” × 0,025’’, foram soldados por resistência elétrica e distribuídos em três grupos: GI (Orthometric, Marília, São Paulo, Brasil), GII (3M, São José do Rio Preto, São Paulo, Brasil) e GIII (GAC, Yorque, Pensilvânia, Estados Unidos). Cada grupo foi dividido em subgrupos de cinco pares de fios soldados com diferentes níveis de potência. Nos GI e GII, os fios foram soldados com níveis de potência de 2.5, 3, 3.5, 4, 4.5 e 5; enquanto no GIII as potências utilizadas foram de 2.5, 3, 3.5 e 4. Os pares de fios foram submetidos a um teste de tração até sua ruptura, com registro das forças máximas. Análises de variância (ANOVA) e testes post-hoc foram realizados para determinar qual subgrupo, dentro de cada grupo, obteve a maior força de resistência. Resultados: a potência 2.5 exibiu a menor resistência à ruptura para todos os grupos (43,75 N para o GI; 28,41 N para o GII e 47,57 N para o GIII). A potência 4 mostrou maior resistência à ruptura nos GI e GII (97,90 N e 99,61 N, respectivamente), enquanto no GIII (79,28 N) foi a potência 3.5. Conclusões: os níveis de potência mais adequados variaram para as marcas comerciais, sendo identificados como 4 para Orthometric e 3M, e 3.5 para GAC.

ABSTRACT Objective: To identify the appropriate power level for electric welding of three commercial brands of nickel-titanium (NiTi) wires. Methods: Ninety pairs of 0.018-in and 0.017 × 0.025-in NiTi wires were divided into three groups according to their manufacturers - GI (Orthometric, Marília, Brazil), GII (3M OralCare, St. Paul, CA) and GIII (GAC,York, PA) - and welded by electrical resistance. Each group was divided into subgroups of 5 pairs of wires, in which welding was done with different power levels. In GI and GII, power levels of 2.5, 3, 3.5, 4, 4.5 and 5 were used, while in GIII 2.5, 3, 3.5 and 4 were used (each unit of power of the welding machine representing 500W). The pairs of welded wires underwent a tensile strength test on an universal testing machine until rupture and the maximum forces were recorded. Analysis of variance (ANOVA) and post-hoc tests were conducted to determine which subgroup within each brand group had the greatest resistance to rupture. Results: The 2.5 power exhibited the lowest resistance to rupture in all groups (43.75N for GI, 28.41N for GII and 47.57N for GIII) while the 4.0 power provided the highest resistance in GI and GII (97.90N and 99.61N, respectively), while in GIII (79.28N) the highest resistance was achieved with a 3.5 power welding. Conclusions: The most appropriate power for welding varied for each brand, being 4.0 for Orthometric and 3M, and 3.5 for GAC NiTi wires.

https://doi.org/10.1590/2177-6709.22.3.058-062.oar 333 downloads

14.

Biting midges (Diptera: Ceratopogonidae) from an urban forest fragment in Central Amazon (Brazil): Effects of opening areas on abundance, richness, and composition
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DOURADO, EDUARDA D.R.

; FERREIRA-KEPPLER, RUTH L.

; MARTINS, RENATO T.

; RONDEROS, MARIA M.

Anais da Academia Brasileira de Ciências

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Dez 2017, Volume 89 Nº 4 Páginas 2757 - 2770

Resumo: En | Texto: En | PDF: En

ABSTRACT We assessed the immature stages of Ceratopogonidae (Diptera) in artificial containers in an urban forest fragment in Manaus (Brazil), including their behavioral, biological and ecological information. In addition, we evaluated the effects of deforestation in an open and forested area on Ceratopogonidae communities. Immatures were sampled between August 2012 and July 2014 in artificial containers installed in both habitat types. We collected 685 immatures of seven morpho-species of Bezzia Kieffer, Culicoides Latreille, Dasyhelea Kieffer, Forcipomyia Meigen, and Palpomyia Meigen. In the open area, we recorded higher temperature and electrical conductivity values than in the forested area; however, these variables did not differ between seasons. Water volume was higher in open area and in rainy season, while pH was similar in both areas and seasons. Species richness was higher in forested area, but did not differ between seasons. We did not record differences in abundance between areas or seasons. Community composition differed between areas, but not between seasons. We provide the first records of Culicoides (Hoffmania) insignis Lutz and C. (Haematomyidium) quasiparaensis Clastrier in artificial containers from the state of Amazonas. Our results suggest that the preservation of forested areas in Amazonas is fundamental for the maintenance of the life cycle of some species of Ceratopogonidae.

https://doi.org/10.1590/0001-3765201720170370 1499 downloads

15.

Stability of beta-titanium T-loop springs preactivated by gradual curvature
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Caldas, Sergei Godeiro Fernandes Rabelo

; Martins, Renato Parsekian

; Araújo, Marcela Emílio de

; Galvão, Marília Regalado

; Silva Júnior, Roberto Soares da

; Martins, Lídia Parsekian

Dental Press Journal of Orthodontics

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Nov 2017, Volume 22 Nº 6 Páginas 61 - 67

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: avaliar as mudanças no sistema de forças das molas T pré-ativadas por curvatura, devido ao alívio de tensão estrutural. Métodos: noventa molas em forma de “T”, medindo 6 mm x 10 mm, confeccionadas com fio de beta-titânio TMA® de 0,017” x 0,025” e pré-ativadas por curvatura gradual, foram distribuídas aleatoriamente em nove grupos, de acordo com o momento de avaliação. O Grupo 1 foi testado imediatamente após a pré-ativação da mola e liberação do estresse, por meio de simulação da ativação. Os outros oito grupos foram divididos conforme o intervalo de tempo testado: após 24, 48 e 72 horas; 1, 2, 4, 8 e 12 semanas. Usando um transdutor de momentos acoplado a um indicador digital para extensometria e adaptado a uma máquina universal de ensaios, as magnitudes da força horizontal, do momento e da proporção momento/força (M/F) foram registradas a cada 0,5 mm de desativação a partir da ativação inicial de 5 mm, utilizando-se uma distância interbraquetes de 23 mm. Resultados: as forças horizontais reduziram-se gradualmente nos grupos (p< 0,001) e o momento apresentou uma queda lenta e significativa ao longo do tempo (p< 0,001). Todos os grupos tiveram proporções M/F semelhantes (p= 0,532), não influenciadas pelo período de tempo. Conclusões: as molas pré-ativadas por curvatura gradual sofreram deformação progressiva ao longo do tempo, o que afetou o sistema de forças - especificamente o momento -, alterando as forças horizontais produzidas.

ABSTRACT Objective: Evaluate changes in the force system of T-Loop Springs (TLS) preactivated by curvature, due to stress relaxation. Methods: Ninety TLSs measuring 6 x 10 mm, produced out with 0.017 x 0.025-in TMA® wire and preactived by gradual curvature, were randomly distributed into nine groups according to time point of evaluation. Group 1 was tested immediately after spring preactivation and stress relief, by trial activation. The other eight groups were tested after 24, 48 and 72 hours, 1, 2, 4, 8 and 12 weeks, respectively. Using a moment transducer coupled to a digital extensometer indicator adapted to a universal testing machine, the amount of horizontal force, moment and moment-to-force ratios were recorded at every 0.5 mm of deactivation from 5 mm of the initial activation, in an interbracket distance of 23 mm. Results: The horizontal forces decreased gradually among the groups (p< 0.001) and the moments showed a significant and slow decrease over time among the groups (p< 0.001). All groups produced similar M/F ratios (p= 0.532), with no influence of time. Conclusions: The TLSs preactivated by curvature suffered a gradual deformation over time, which affected the force system, specifically the moments, which affected the horizontal forces produced.

https://doi.org/10.1590/2177-6709.22.6.061-067.oar 880 downloads

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