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The Common Rail Injection System (CRIS) is diesel engines' main fuel injection system. Due to market needs, such as replacing fuel from diesel to biodiesel, several mechanical problems were observed, including the wear of the metallic components. This paper proposed improving the wear resistance of steel SAE 1045, which can be used in some elements of injection systems, by depositing DLC multilayer films using a plasma Duplex treatment. Firstly, the samples were nitrided in atmospheric plasma and then coated with thin films of DLC/a-Si:H multilayers using a modified pulsed-DC PECVD system. The duplex treatment may reduce friction and consequently facilitate sliding contact. The tribological tests were performed in a cylinder-disc tribometer designed and constructed exclusively to simulate the real contact of components under pressure and movement conditions in the CRIS. The results showed a considerable increase in surface hardness due to the formation of iron nitrides. The DLC/a-Si:H coating reduced the surface roughness because of the plastic deformation of this layer after the tribological tests. Also, this mechanism contributed to the decrease in wear and improved performance of the studied component.

The current materials research field demands sophisticated tests and simulations to predict creep behavior, meet design needs, and save time and resources. This demands an appropriate mathematical formalism that can represent creep data for different materials and loading conditions. In this context, mathematical models such as θ-Projection and ν Concept can be applied to predict the behavior of materials under creep conditions. The main goal of this study involves the application of such methodologies to predict a creep curve for Ti-6Al-4V. In a preliminary assessment, both equation parameters, determined by computational techniques and an experimental database, enabled the determination of the strain-time curve of Ti-6Al-4V at 465 MPa and 500 ºC. The analysis showed that both methods have acceptable accuracy to predict primary, secondary, and tertiary creep behavior for Ti-6Al-4V. However, results indicated that the ν Concept produced a creep curve with better agreement with the experimental data. The technique used for obtaining parameters is promising and should be improved for future research.

Abstract Objectives To evaluate the disease activity before and after COVID-19 and risk factors associated with outcomes, including hospitalization, intensive care unit (ICU) admission, mechanical ventilation (MV) and death in patients with spondylarthritis (SpA). Methods ReumaCoV Brazil is a multicenter prospective cohort of immune-mediated rheumatic diseases (IMRD) patients with COVID-19 (case group), compared to a control group of IMRD patients without COVID-19. SpA patients enrolled were grouped as axial SpA (axSpA), psoriatic arthritis (PsA) and enteropathic arthritis, according to usual classification criteria. Results 353 SpA patients were included, of whom 229 (64.9%) were axSpA, 118 (33.4%) PsA and 6 enteropathic arthritis (1.7%). No significant difference was observed in disease activity before the study inclusion comparing cases and controls, as well no worsening of disease activity after COVID-19. The risk factors associated with hospitalization were age over 60 years (OR = 3.71; 95% CI 1.62–8.47, p = 0.001); one or more comorbidities (OR = 2.28; 95% CI 1.02–5.08, p = 0.001) and leflunomide treatment (OR = 4.46; 95% CI 1.33–24.9, p = 0.008). Not having comorbidities (OR = 0.11; 95% CI 0.02–0.50, p = 0.001) played a protective role for hospitalization. In multivariate analysis, leflunomide treatment (OR = 8.69; CI = 95% 1.41–53.64; p = 0.023) was associated with hospitalization; teleconsultation (OR = 0.14; CI = 95% 0.03–0.71; p = 0.01) and no comorbidities (OR = 0.14; CI = 95% 0.02–0.76; p = 0.02) remained at final model as protective factor. Conclusions Our results showed no association between pre-COVID disease activity or that SARS-CoV-2 infection could trigger disease activity in patients with SpA. Teleconsultation and no comorbidities were associated with a lower hospitalization risk. Leflunomide remained significantly associated with higher risk of hospitalization after multiple adjustments.

Maraging steel is a special class of high-strength steels that are hardened by the precipitation of intermetallic compounds at temperatures close to 480 °C, without carbon transformation. Since its development, it has been used for strategic applications (nuclear energy, defense, and aerospace areas) and the mastery of its process and application has been constantly improved. This study aimed to characterize the weld regions of a maraging 300 steel used to manufacture a rocket motor case. Welded samples of maraging 300 steel were subjected to metallurgical and mechanical characterization. Microstructural analysis showed three different zones in the hardness range of 291 to 465 HV and reduced toughness. X-ray diffraction showed metallic phases in each region, evidencing the increase of the austenite phase. Based on the results obtained, maraging steel has great potential for aerospace applications, with excellent strength even when subjected to welding.

The formation of a stable and adherent oxide layer on the Ti-6Al-4V alloy can improve the mechanical and corrosion resistance of this material. This work studied the creep behavior of Ti-6Al-4V alloy after two different thermal oxidation conditions: at 650 °C for 12 h and at 800 °C for 2 h. In the XRD analysis of the oxidized samples, it was possible to observe the formation of rutile (TiO2) and a displacement of the peaks of α and β phases caused by the dissolution of oxygen. In the creep test at 550 °C, the material oxidized at 800 °C for 2 h showed a greater creep life at 125 MPa, the crack took longer to brake probably due to the greater thickness of the layer. At 550°C and 187.5 MPa the material oxidized at 650 °C for 12h has a better creep life, probably due to the layer more adhered.

In recent years the food industry has been experiencing a paradigm shift concerning the new profile of consumers, who are increasingly informed and critical. Therefore, understanding consumer choices and preferences becomes a competitive differential between companies. In addition, the sensory characteristics of products are fundamental factors that decide the purchase and repurchase of food and beverages, thus making sensory analysis one of the most used tools in the food segment. As a result, the objective of this study was to evaluate the consumer profile, preference, and sensory acceptance of different brands of strawberry flavored dairy beverages. For this purpose, different brands of strawberry flavored dairy beverages (brands A, B, C, and D) were collected in supermarkets, which were subjected to a preference test and sensory acceptance. A total of 36 consumers participated in the sensory analysis, of which 56% were aged between 18 and 20 years and 86% were University students. Survey participants stated that they read the information contained on packaging labels (53%) and that they observe the validity of the product (94%). Regarding the sensory analysis, it was possible to verify that the dairy beverage (brand D) showed greater preference for all evaluated attributes, as well as greater sensory acceptance, showing a positive relationship between these two sensory tests.

Genipa americana L., commonly known as genipap, belongs to the Rubiaceae family. This study aimed to describe the pollen morphology of the species, evaluate its meiotic behavior and pollen viability, and provide information to help the maintenance and conservation of the species in its natural habitat. Flower buds were collected from 20 individuals in Alta Floresta and Matupá municipalities, Mato Grosso, Brazil. Pollen morphology was characterized using acetolysis and compared to existing literature. Meiotic and post-meiotic phases were analyzed using 2% acetocarmine stain, and pollen viability was estimated using Sudan IV, Alexander's stain, Lugol's solution (1%), and 2% acetocarmine stain. G. americana has medium-sized, 3-colporate pollen with reticulated exine and few meiotic irregularities. Acetocarmine stain showed the highest mean percentage of pollen viability (97.96%). Stain tests revealed significant differences, indicating high pollen viability and meiotic regularity. However, conservation and recovery of degraded areas are still necessary as there is no guarantee of successful reproduction due to factors associated with fragmentation, genetic drift, reduced gene flow, and inbreeding.

Abstract Background Antiphospholipid syndrome (APS) is characterized by episodes of thrombosis, obstetric morbidity or both, associated with persistently positive antiphospholipid antibodies (aPL). Studying the profile of a rare disease in an admixed population is important as it can provide new insights for understanding an autoimmune disease. In this sense of miscegenation, Brazil is characterized by one of the most heterogeneous populations in the world, which is the result of five centuries of interethnic crosses of people from three continents. The objective of this study was to compare the clinical and laboratory characteristics of Brazilian vs. non-Brazilian primary antiphospholipid syndrome (PAPS) patients. Methods We classified PAPS patients into 2 groups: Brazilian PAPS patients (BPAPS) and PAPS patients from other countries (non-BPAPS). They were compared regarding demographic characteristics, criteria and non-criteria APS manifestations, antiphospholipid antibody (aPL) profile, and the adjusted Global Antiphospholipid Syndrome Score (aGAPSS). Results We included 415 PAPS patients (88 [21%] BPAPS and 327 [79%] non-BPAPS). Brazilian patients were significantly younger, more frequently female, sedentary, obese, non-white, and had a higher frequency of livedo (25% vs. 10%, p

Dançar não é apenas decorar e executar passos previamente estabelecidos; é preciso compreender a dança como um sistema de criação que promove a pesquisa do gesto e o aprofundamento no próprio ser. O objetivo deste trabalho é apresentar um relato de experiência com o processo de ensino da dança no contexto da extensão universitária em Diamantina-MG. Será realizada a apresentação da concepção de dança, corpo e ensino desenvolvida no projeto poéticas do corpo, além de um conjunto de procedimentos que almejam demonstrar a apropriação de elementos criativos no contexto pedagógico de ensino da dança. Algumas conquistas do projeto foram o entusiasmo pela pesquisa e criação gestual, o que resultou na abertura de horizontes interpretativos sobre o que é a dança e quais corpos podem dançar. É preciso ampliar e fomentar os espaços de criação artística no ambiente universitário, uma vez que colaboram para a formação humana e artística dos envolvidos.

A partir da ascensão da avaliação do ensino superior brasileiro nos últimos anos e sua influência sobre as instituições avaliadas, tomamos como objetivo de estudo a análise dos indicadores dos programas de pós-graduação stricto sensu em Administração (PPGAs), obtidos no quadriênio entre 2013 e 2016, visando identificar seu comportamento estratégico. Com base na combinação teórica aplicada de forma inédita ao campo de estudo, a Teoria dos Recursos e a abordagem institucional do isomorfismo, foram levantadas três hipóteses, analisadas por diferentes métodos quantitativos: regressão linear, correlação de Pearson, razão e proporção. Os resultados confirmaram as duas primeiras hipóteses e complementaram a terceira, que atestou que, além dos programas de excelência, há alto nível de eficiência entre os docentes de PPGAs de todos os estratos. Pela combinação das teorias, constatamos que uma organização efetiva em ambiente regulamentado é aquela que consegue organizar todos os recursos, processos e rotinas de forma alinhada às determinações regulatórias. Todavia, no campo em que o sistema regulatório também desempenha o papel de agente financiador, emerge a questão competitiva. Constataram-se diferenças entre os quesitos explicativos para o conceito dos programas de nível superior (5, 6, 7) e para todo o conjunto de programas pesquisados (4, 5, 6, 7), o que possibilitou a construção de um modelo estratégico para o desempenho superior. Com esse estudo, pretendemos contribuir com a ampliação do conhecimento a respeito do sistema de avaliação da pós-graduação, assim como lançar luz na discussão dos impactos da avaliação da Capes sobre os PPGAs. Ademais, esperamos que essa pesquisa científica cumpra com o seu papel conceitual, social e gerencial.

Objectives To describe the outcomes of pregnancies in antiphospholipid antibody (aPL)-positive patients since the inception of the AntiPhospholipid Syndrome Alliance for Clinical Trials and InternatiOnal Networking Registry.Methods We identified persistently aPL-positive patients recorded as ‘pregnant’ during prospective follow-up, and defined ‘aPL-related outcome’ as a composite of: (1) Preterm live delivery (PTLD) at or before 37th week due to pre-eclampsia (PEC), eclampsia, small-for-gestational age (SGA) and/or placental insufficiency (PI); or (2) Otherwise unexplained fetal death after the 10th week of gestation. The primary objective was to describe the characteristics of patients with and without aPL-related composite outcomes based on their first observed pregnancies following registry recruitment.Results Of the 55 first pregnancies observed after registry recruitment among nulliparous and multiparous participants, 15 (27%) resulted in early pregnancy loss

ABSTRACT Ornamental pepper plants produced in containers under protected environments have high added value. We carried out research with an aim to evaluate the growth and development of ornamental pepper in containers of different colors under two protected environments, both with thermal-reflective screens under a polyethylene film: one with 18–22 % shading and the other with 42–50 % in colored containers (brown, blue, black, and red). The treatments formed by a 2 × 4 factorial (environments × container colors) were arranged in a completely random pattern with 4 replications and 5 plants per plot, and a joint analysis of experiments was used to compare environments. The protected environment covered with low-density polyethylene film having 42–50 % of shading promoted higher initial growth of pepper plants, including early maturity, compared to the protected environment with 18–22 % of shading. The colored containers, namely, the brown container in a protected environment with 42–50 % shading and red container with 18–22 % shading formed plants with better growth and yield characteristics compared to the black container. The seedlings in the blue container had delayed flowering.

The present text discusses theoretical and philosophical elements based on “play and move” as a pedagogical possibility of a subject-centered Physical Education, with a view to expanding the existential field. The goal is to expand knowledge about gymnastics practice that presupposes awakening new meanings and meanings of children, recognizing that human action weaves relationships of meanings to and with the world, through experiences that refer to the meanings attributed by the being that moves. Considering that human action is loaded with intentionality and connection between body and world, a gymnastics is defended that fosters the realization of body experiences through problem solving and the participation of children in classes with autonomy, creativity and freedom, allowing constitute them other senses in what they do, think and feel, dialoguing with the world in a healthy adventure that invites them to develop in the course of infinite possibilities of action.

Abstract Over the years, the demand for high engine efficiency has resulted in the development of new generation superalloys with improved elevated temperature properties, especially creep resistance. This study aimed to evaluate creep and mechanical behavior of Inconel 718 superalloy. Creep tests were performed at temperature range of 650 to 700 °C and stress range of 625 to 814 MPa. Hot tensile and oxidation tests were performed and the characterization techniques used in this study were scanning electron microscopy (SEM) for microstructural and fracture surface analysis, transmission electron microscopy (TEM) for precipitates analysis; grazing X-ray diffraction for analysis of oxide formation and Vickers microhardness. The analyze of stress exponent value (n = 36.48) and activation energy (Qc = 512.97 kJ/mol), suggested that creep mechanism at 650 °C was the climb dislocation mechanism. The Inconel 718 presented ductile fracture at 650 and 700 °C and intergranular fracture to 675 °C.

Abstract Titanium and its alloys are widely used as implant materials and many studies to accelerate the osseointegration have been performed. This work aims to evaluate the formation of a bioactive surface in commercially pure titanium (cp-Ti) grade 4 after alkali (AT) and heat treatments at 600 °C (AHT600) and 900 °C (AHT900). Characterization techniques were SEM, AFM, Raman, TF-XRD, wettability, nanoindentation and indentation adhesion. Additionally, SBF soaking tests were performed to evaluate apatite growth and showed that alkali and heat treatment accelerates apatite growth. The AT samples formed sodium hydrogen titanate (1 µm thick), and AHT600 and AHT900 formed sodium titanate (1 µm thick), while rutile TiO2 increased with temperature, reaching up to 5 µm thick and the surface changed from slightly hydrophilic to fully hydrophilic. Roughness and surface area increased, especially in AHT900. The hardness of the surface layer was significantly increased by the heat treatment.

A Síndrome de Munchausen (SM) ocorre quando o indivíduo produz sinais e sintomas de uma doença ou lesão. São relatos de múltiplos problemas médicos com uma história inconsistente e um comportamento alterado, bem como obrigação psicológica em adotar o papel de doente, sem ganhos ou incentivos evidentes. Descreve-se um caso em que o diagnóstico foi feito a partir da confissão espontânea da paciente de que sinais e sintomas foram simulados, alémda ingestão de corpo estranho com o desejo de ser submetida à cirurgia e a mudança repentina de comportamento. O diagnóstico é raro, então o estudo visa colaborar para ampliar a gama de conhecimentos sobre a SM. Concluiu-se que a SM pode ter sido desencadeada por traumas psicológicos, bem como histórico de privação afetiva e maus tratos de pessoas de seu convívio. Sendo assim, o ambiente hospitalar torna-se o local onde a paciente encontra o acolhimento desejado.

Abstract Objective To evaluate the frequency of anti-collagen type V in humans with early systemic sclerosis (SSc) compared to defined SSc patients and healthy controls, since collagen type V was shown to be overexpressed in early SSc patients’ skin and there is no data concerning the presence of this antibody in early stages of human SSc. Experimental studies showed that animal models immunized with collagen type V developed a disease similar to human systemic sclerosis (SSc), with antibodies production, mainly in early stages post-immunization. Methods Eighty-one female SSc patients were included and divided into two groups: early-SSc (18 patients-EULAR Preliminary Criteria) and defined-SSc (63 patients-ACR Criteria 1980). The control group consisted of 19 healthy women age-matched to Early-SSc group. Anti-collagen type V was performed by ELISA. Data was analyzed by appropriate tests. Results The prevalence of anti-collagen type V in early-SSc, defined-SSc and control groups was respectively 33, 17 and 5% (p = 0.07). SSc patients with anti-collagen type V had shorter disease duration compared to those without this antibody (8.8 ± 5.1 vs. 14.7 ± 8.9, p = 0.006). Likewise, early-SSc patients with anti-collagen V also had a shorter disease duration than patients negative for this antibody (4.6 ± 2.2 vs. 9.7 ± 5.2, p = 0.04). No association with clinical subsets or scleroderma antibodies specificities was observed (p > 0.05). Conclusion The production of anti-collagen type V in SSc seems to be an early event independent of other antibodies specificities. Further studies are necessary to determine if the underlying mechanism for this chronology involves a primary immune response to abnormal expression of collagen type V.

The Prion Protein (PrP) is mostly known for its role in prion diseases, where its misfolding and aggregation can cause fatal neurodegenerative conditions such as the bovine spongiform encephalopathy and human Creutzfeldt–Jakob disease. Physiologically, PrP is involved in several processes including adhesion, proliferation, differentiation and angiogenesis, but the molecular mechanisms behind its role remain unclear. PrP, due to its well-described structure, is known to be able to regulate copper homeostasis; however, copper dyshomeostasis can lead to developmental defects. We investigated PrP-dependent regulation of copper homeostasis in human endothelial cells (HUVEC) using an RNA-interference protocol. PrP knockdown did not influence cell viability in silenced HUVEC (PrPKD) compared to control cells, but significantly increased PrPKD HUVEC cells sensitivity to cytotoxic copper concentrations. A reduction of PrPKD cells reductase activity and copper ions transport capacity was observed. Furthermore, PrPKD-derived spheroids exhibited altered morphogenesis and their derived cells showed a decreased vitality 24 and 48 hours after seeding. PrPKD spheroid-derived cells also showed disrupted tubulogenesis in terms of decreased coverage area, tubule length and total nodes number on matrigel, preserving unaltered VEGF receptors expression levels. Our results highlight PrP physiological role in cellular copper homeostasis and in the angiogenesis of endothelial cells.

Reproductive biotechnologies emerge as an important element for livestock, however, some strategies must be modified to adapt the different breeding systems, such as the use of follicular synchronization protocols. This study aimed to evaluate follicular synchronization using estradiol benzoate, with the presence of the corpus luteum, on the in vitro embryo production (IVEP) from Wagyu oocytes donors. Routines of IVEP were performed in heifers and cows (n=19), classified into three groups: G1/CL- animals with corpus luteum; G2/SCL- animals without corpus luteum, these groups being the control, and had the natural process of follicular dynamics and G3/CL + EB - animals with the presence of corpus luteum, submitted to follicular synchronization at D0, with estradiol benzoate. The results obtained showed that the synchronization of the follicular wave with the application of EB, in the presence of the corpus luteum (CL), reduced the number of small (6.05 ± 0.55) and large follicles (0.45 ± 0.15), but increased (P0.05). It was concluded that follicular synchronization using estradiol benzoate in Wagyu oocyte donors, presenting a corpus luteum, increased the number of medium follicles, however, there was no improvement in the efficiency of ovum pick-up, in vitro embryo production and pregnancy rate.

O objetivo deste estudo é relatar e refletir sobre as Intervenções Informacionais desenvolvidas em um projeto de extensão universitária que promove assistência às famílias de crianças e adolescentes com Transtorno do Espectro Autista (TEA), durante a pandemia da COVID-19. Para tanto, trata-se de um relato de experiência que se deu em três etapas: 1) acolhimento e levantamento das demandas das famílias, 2) elaboração de materiais informativos e 3) articulação com o território, divulgação e acesso aos materiais. Cartilhas, vídeo e infográfico foram produzidos e divulgados em diferentes mídias sociais e compartilhados em grupos online de familiares e profissionais.

The development of Al-based alloys presumes a detailed understanding of the microstructure evolution during solidification since the as-solidified microstructure also has effects on the subsequent thermo-mechanical processing. In the present investigation Al-7wt.%Si-xMg (x = 0.5 and 1 wt.%) alloys are subjected to transient directional solidification with a view to characterizing the microstructure evolution, with special focus on both dendritic evolution and the inherent features of the Mg2Si and π-AlSiFeMg intermetallics. Experimental power-type functions relating the primary, secondary and tertiary interdendritic spacings to the solidification cooling rate and growth rate are developed. It is observed that the Mg content added to the Al-7wt.%Si alloy and the consequent increase in the Mg2Si fraction tends to increase the values of the primary dendritic spacing. However, this same behavior is not verified for the growth evolution of dendritic side branches. A multiple linear regression (MLR) analysis is developed permitting quantitative correlations for the prediction of tensile properties and hardness from microstructural parameters to be established. The increase in the Mg alloy content from 0.5 to 1 was shown to promote an increase in both the ultimate tensile strength (σu) and elongation.

The prediction of microstructure morphology is fundamental for the manufacture of metallic components, since the expected levels of mechanical properties will be associated with the final aspects of the microstructure. In this work, an Al-7wt.%Si-3wt.%Mg alloy was directionally solidified in unsteady state conditions in order to investigate the influence of the addition of 3wt.%Mg to an Al-7wt.%Si alloy on the solidification evolution. The microstructure of the examined alloy is shown to be characterized by a more complex arrangement of phases, as compared to that of the Al-7wt.%Si alloy, which includes the binary (α-Al+Mg2Si) and refined ternary (α-Al+Si+Mg2Si+Fe-rich IMC) eutectic mixtures. A higher Vickers hardness profile is shown to be associated with a more refined microstructural arrangement. However, for cooling rates lower than 2K/s the microhardness is shown to increase with the increase in the microstructural spacing, which is shown to occur caused by Si macrosegregation and higher content of free Mg.

Niobium has been considered for applications in the aerospace sector, but its use at high temperatures is restricted, due to the great affinity of refractory metals with oxygen, which results in the formation of oxide layers and a decrease in their mechanical resistances. In the present work, Nb samples were submitted to High-Temperature Nitrogen Plasma-Based Ion Implantation (HT-NPBII). The process runs at a working pressure between 3 and 4 mbar and negative high voltage pulses of 7 kV/30 μs/300 Hz were applied to samples heated to 1000°C, at treatment times of 1 h, 4 h, and 8 h, respectively. Microstructural and mechanical characterizations of the treated samples revealed the formation of a layer of Nb2N, with 3.0 μm thickness and increase in the surface hardness from 225 HV for the untreated material up to about 2498 HV, for samples treated during 8 h. Creep tests were performed at 500°C and with loads varying from 25 to 40 MPa. Results indicated a decrease in the secondary creep rate for treated specimens when compared to the untreated ones. This behavior can be attributed to the formation of a nitride layer on the surface of Nb that acts as barrier to avoid the oxygen diffusion into the material under high temperature conditions.

The objective of this study is to evaluate the surface physicochemical properties of Ti6Al4V alloy after etching with a piranha’s solution at temperatures of 25 °C, 40 °C, and 60 °C for 30 min. Scanning electron microscopy with energy-dispersive X-ray spectroscopy, optical profilometry, X-ray diffraction, and wettability analyses were used to characterize the surface of the samples. In addition, corrosion tests were performed using potentiodynamic polarization and electrochemical impedance spectroscopy. The proposed surface treatment did not alter the wettability and surface chemistry (crystallinity), but the texture, surface roughness, superficial area, and corrosion resistance of the alloy could be changed by varying the etching temperature. Considering that these properties are indirect indicators of the alloy’s potential success in the osseointegration of a dental implant, the surface treatment of the Ti6Al4V alloy using a piranha solution while controlling the etching temperature has attractive biomedical applications.

O presente ensaio tem como objetivo refletir sobre o Jogo como uma das dimensões do lúdico - a par do brincar e do competir. A reflexão vai fazer o elogio ao Jogo como um fim em si mesmo, contrariando a ideia do Jogo como um meio, um instrumento ao serviço de modelos teóricos e didáticos. O Jogo é capaz de emprestar a quem joga um movimento humano significativo, fundado a partir da concepção dialógica do movimento. Neste sentido serão apresentados alguns apontamentos que tornam o Jogo como parte essencial da Educação Física (e da educação em geral) e do movimento humano significativo; dentre eles, podemos citar a subjetividade, a criatividade, o sonho, a vontade, a possibilidade, a liberdade, … como constituintes do ser humano. Palavras-chave: Jogo; Movimento humano significativo; Subjetividade; Lúdico.

Este estudo teve como objetivo identificar as relações entre os pesquisadores de Inovação dos programas de Pós-graduação stricto-sensu em Administração brasileiros, usando como base a abordagem teórico-metodológica da Análise de Redes Sociais (ARS). No intuito de mapear as redes de coautoria de produção científica, utilizou-se o software Ucinet 6 e NetDraw 2.160 para geração dos grafos, chegando a resultados que apontaram relações fracas quanto à formação da rede de coautores de Inovação. Entretanto, ficou claro o comportamento pró-ativo de alguns pesquisadores que agem como nós centrais de produção científica intrainstitucional e outros que agem como pontes interinstitucionais. Em contrapartida, identificou-se uma parcela significativa de autores que não possui nenhum vínculo com os pesquisadores da rede estudada, deixando uma lacuna a ser pesquisada em estudos futuros, com a finalidade de compreender o comportamento desses pesquisadores, analisando suas relações de coautoria tanto nacionais quanto internacionais.

Purpose – The purpose of this paper is to identify the structural similarities between stricto sensu post-graduation programs in management through the formation of clusters, with the strategy tripod as a backdrop (Peng, 2002; Peng et al., 2009). Design/methodology/approach – The co-plot method was used as a tool. It was chosen because it simultaneously enables joint and individual observations of comments and variables. Findings – The results showed the formation of clusters among the programs, identifying a series of similarities between their components. The age and number of lines of research of the programs were the determining variables to identify isomorphism among the clusters. Research limitations/implications – The main limitation of the study lies in the updating of information at the source of the data collection. All the data were collected from the Sucupira Platform for CAPES Triennial Evaluation of 2013. However, when the authors accessed the portals of the programs, the authors found that some data were outdated. Nevertheless, the authors limited themselves to using official data. Therefore, even if the authors found divergences or inconsistencies regarding the published information, the authors decided to use the official data made available by CAPES on the Sucupira Platform for the period in question. Originality/value – Understanding that the results through the approaches of the industry-based view, resource-based view and institution-based view were insufficient for a thorough analysis, it is demonstrated in isolation that none of these succeeds in explaining the organizational context that permeates Brazilian stricto sensu post-graduation institutions. In this organizational field, the three views are not at the same theoretical level. The institutional view overlaps with the strategic competitive views. Therefore, the study contributes to reorganizing the strategy tripod and the proposed articulation between the arrangement of theory, method and field research.

O presente artigo se propôs a verificar o comportamento da dívida pública do estado de Mato Grosso no período entre 2002 a 2012. Para atingir este propósito, foram levantados os valores referente a dívida pública, ao Produto Interno Bruto (PIB), a Receita Corrente Líquida (RCL) e ao resultado primário do estado no período; calculado o percentual da dívida em relação ao PIB e a RCL; e à sustentabilidade da dívida pública ao longo do período. O método adotado tomou como base o modelo de Pasinetti (1998) e se utilizou de sítios eletrônicos tais como Instituto Brasileiro de Geografia e Estatística (IBGE), da Secretaria de Estado de Fazenda (SEFAZ-MT), da Secretaria de Estado de Planejamento e Coordenação Geral (SEPLAN-MT) para a coleta de dados. A base teórica apresenta o conceito de accountability, sua relação com as finanças públicas e sua aplicação na Lei de Responsabilidade Fiscal (LRF). Após a organização e análise preliminar dos dados por meio de estatística descritiva, constatou-se que tanto a relação dívida pública/PIB quanto a relação dívida pública/RCL apresentaram uma significativa redução, apontando para uma trajetória sustentável. Visando a análise confirmatória, foi aplicado o modelo de Pasinetti, que corroborou com os resultados encontrados nas análises preliminares.

Resumo O texto faz uma aproximação da dança na perspectiva da linguagem com o “se-movimentar” e suas relações com a temporalidade. Discute sobre os lugares da exploração dos gestos, da aprendizagem da cultura de movimento e da criação nas experiências com a dança no contexto pedagógico. Entrelaçando tempo e “se-movimentar”, observamos que a expressão criadora se dá na troca eu-outro-mundo. O entendimento de um tempo estendido, não fragmentado, nos mostra que uma motricidade original se projeta entrecruzando passado-presente-futuro. Nessa perspectiva, podemos pensar numa prática de ensino que não opõe as transcendências de limites da aprendizagem (forma direta, forma aprendida, forma criativa inventiva), uma vez que há o jogo da transitividade entre elas. Palavras-chave: Dança. Linguagem. “Se-movimentar”. Temporalidade. The “self-move” and temporality: an approximation between dance and language Abstract The text draws an approximation of dance from the perspective of language with the “self-movement” and its relations with temporality. It discusses about the places of the exploration of the gestures, the learning of the culture of movement and the creation in the experiences with the dance in the pedagogical context. Interweaving time and “self-movement”, we observe that the creative expression takes place in the I-other-world exchange. The understanding of an extended, non-fragmented time shows us that an original motricity projects itself cross-crossing past-present-future. In this perspective, we may think of a teaching practice that does not oppose the transcendences of learning limits (direct form, learned form, inventive creative form), since, between them, there is the play of transitivity. Keywords: Dance. Language. “Self-move”. Temporality. El “mover-se” y la temporalidad: una aproximación entre danza y lenguaje Resumen El texto realiza una aproximación de la danza en la perspectiva del leguaje con el “mover-se” y sus relaciones con la temporalidad. Discute sobre los lugares de la exploración de los gestos, del aprendizaje de la cultura de movimiento y de la creación en las experiencias con la danza en el contexto pedagógico. Entrelazando tiempo y “mover-se”, observamos que la expresión creadora se da en el intercambio yo-otro-mundo. La comprensión de un tiempo extendido, no fragmentado, nos muestra que una motricidad original se proyecta entrecruzando pasado-presente-futuro. En esa perspectiva, podemos pensar en una práctica de enseñanza que no opone las trascendencias de límites del aprendizaje (forma directa, forma aprendida, forma creativa inventiva), una vez que existe el juego de la transitividad entre ellas. Palabras clave: Danza. Lenguaje. “Mover-se”. Temporalidad.

Objetivamos por meio deste trabalho compreender como professores/as em formação concebem o conceito de pensamento crítico. Para tanto, foram analisadas escritas produzidas em um componente curricular com carga horária integralmente destinada a Prática como Componente Curricular. As mesmas constituem o primeiro movimento de escrita d@s licenciand@s no Portfólio, instrumento de avaliação do componente anteriormente citado. Foram elaboradas dezenove escritas e analisadas partindo dos pressupostos da Análise Textual Discursiva. Diante da análise dos textos emergiu a categoria final intitulada “O perfil do pensador crítico: potência no processo de desvelamento da realidade”, na qual é atribuído ao pensador crítico a capacidade de problematizar o contexto em que se insere por meio de olhar crítico e atento. Observando com racionalidade, buscando constantemente por conhecimento e desconstruindo verdades estáticas.

Plasma nitriding of a solution annealed and aged 300 grade maraging steel was studied aiming to increase the creep resistance. The surface microhardness reached 1,140 HV, producing 50 µm layer composed of ε-Fe3N and γ'-Fe4N nitrides at the uppermost sample layer. The inner core remained unaltered presenting typical plate-like martensite microstructure of maraging steels with average microhardness of 604 HV. Surface RMS roughness in the nanometric scale increase from 52 nm to 71 nm. The continuous layer of iron nitrides seems to behave as a barrier for oxidation and for inward oxygen diffusion improving the creep resistance by reducing the steady-state creep rate (εs) in 52-65% when compared with the literature results. Dominant creep mechanism is controlled by dislocations climb. Fracture surfaces of specimens presented ductile failure consisting of equiaxed and bi-modal dimples in the fibrous zone surrounded by 45º shear lip. Nitrided sample presented a reduced ductility, associated to the hard surface layer.

Resumo O presente estudo buscou identificar as percepções dos profissionais de uma escola sobre o sofrimento psíquico apresentado por alguns estudantes e sobre as estratégias utilizadas para o enfrentamento dessa problemática. Participaram 18 profissionais de uma escola pública de uma cidade do interior do estado de São Paulo, com os quais foram realizadas entrevistas semiestruturadas. Os dados foram analisados pela técnica de análise de conteúdo. Observou-se, na percepção dos participantes, que a problemática relacionada à saúde mental nas crianças é expressa por meio de agressividade e agitação excessivas, isolamento, desatenção e dificuldade no cumprimento de combinados e que envolve fatores do contexto familiar, escolar e socioculturais presentes no cotidiano das crianças. Os resultados obtidos sinalizam a importância de ações intersetoriais de promoção à saúde mental infantil que possam abarcar os diferentes atores e os serviços direcionados a essa população.