Entre a academia e o mercado de trabalho: dilemas e perspectivas para o profissional de Relações Internacionais

A dinâmica das interações e transformações no mundo impulsionou a criação de uma área específica para o estudo das relações internacionais. No Brasil, esse movimento é relativamente novo, porém tem apresentado um crescimento significativo dos cursos de graduação em relações internacionais nas últimas décadas. Em paralelo à essa oferta, crescem também as preocupações com relação ao mercado de trabalho de uma área ainda em desenvolvimento. Dessa forma, o profissional de relações internacionais precisa buscar alternativas para se destacar em um mercado competitivo, desinformado sobre suas habilidades e cada vez mais exigente

Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points

Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder’s external and internal rotations at 90 and 180°/s angular velocities, and (ii) the point duration influence of the above-mentioned variables. Twenty competitive tennis players performed external and internal shoulder rotations; an isokinetic evaluation was conducted of the dominant and non-dominant upper limbs before and after five and ten forehands. A higher torque production in the shoulder’s internal rotations at 90 and 180°/s was observed for the dominant vs. non-dominant sides (e.g., 63.1 ± 15.6 vs. 45.9 ± 9.8% and 62.5 ± 17.3 vs. 44.0 ± 12.6% of peak torque/body mass, p < 0.05). The peak torque decreased only after ten forehands (38.3 ± 15.8 vs. 38.2 ± 15.8 and 39.3 ± 16.1 vs. 38.1 ± 15.6 Nm, respectively, p < 0.05), but without impacting speed or accuracy. Unilateral systematic actions of tennis players caused contralateral asymmetries, evidencing the importance of implementing compensatory training. The forehand kinematic assessment suggests that racket and wrist amplitude, as well as speed, are important success determinants in tennis.SIThis research received no external funding

Velocity Variability and Performance in Backstroke in Elite and Good-Level Swimmers

Backstroke swimming, a cyclic and continuous movement, displays a repeating structure due to the repeated action of the limb, presenting similar (but not identical) cycles. Some variability is generated by instabilities, but this may play a functional role in the human performance, allowing individual adaptations to constraints. The current study examined the role of velocity variability in backstroke performance, hypothesizing that this variable is associated with swimmers&rsquo; performance. Sixteen elite and fifteen good-level swimmers were video recorded in the sagittal plane when performing 25 m backstroke at maximal intensity in order to determine hip velocity and mean velocity, stroke rate, stroke length and indexes of coordination/synchronization. Lyapunov maximal exponent and sample entropy were also calculated for successive cycles. The elite swimmers&rsquo; performances were more unstable (0.1742 &plusmn; 0.1131 versus 0.0831 &plusmn; 0.0042, p &lt; 0.001) and complex (0.9222 &plusmn; 0.4559 versus 0.3821 &plusmn; 0.3096, p &lt; 0.001) than their good-level counterparts, but intracycle velocity variation did not differ (11.98 &plusmn; 3.47 versus 12.03 &plusmn; 3.16%, p &gt; 0.05). Direct relationships were observed between mean velocity and stability (r = 0.40, p = 0.03), as well as with complexity (r = 0.53, p = 0.002), with intracycle velocity variation and complexity also being related (r = 0.38, p = 0.04). Backstroke performance is associated with velocity variability, with elite swimmers being able to control it through several adaptations, overcoming the high drag and inertia

Saberes históricos prescritos na BNCC para o ensino fundamental: tensões e concessões /Historical knowledge prescribed at BNCC for elementary school: tensions and concessions

O artigo analisa a configuração do ensino e aprendizagem de História  na BNCC- Base Nacional Comum Curricular de História para o ensino fundamental em fase de implantação pelo Ministério da Educação nas redes de ensino do Brasil. Na introdução contextualizamos o processo de elaboração, as tensões e disputas políticas em torno da seleção dos conteúdos. Na sequencia refletimos sobre as prescrições do como e do que ensinar e, na ultima parte, analisamos o PNLD como um instrumento de politica pública que assume o papel de controle e cerceamento da autonomia docente no contexto escolar.PALAVRAS-CHAVE: História, currículo, ensino fundamenta

Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points

Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder&rsquo;s external and internal rotations at 90 and 180&deg;/s angular velocities, and (ii) the point duration influence of the above-mentioned variables. Twenty competitive tennis players performed external and internal shoulder rotations; an isokinetic evaluation was conducted of the dominant and non-dominant upper limbs before and after five and ten forehands. A higher torque production in the shoulder&rsquo;s internal rotations at 90 and 180&deg;/s was observed for the dominant vs. non-dominant sides (e.g., 63.1 &plusmn; 15.6 vs. 45.9 &plusmn; 9.8% and 62.5 &plusmn; 17.3 vs. 44.0 &plusmn; 12.6% of peak torque/body mass, p &lt; 0.05). The peak torque decreased only after ten forehands (38.3 &plusmn; 15.8 vs. 38.2 &plusmn; 15.8 and 39.3 &plusmn; 16.1 vs. 38.1 &plusmn; 15.6 Nm, respectively, p &lt; 0.05), but without impacting speed or accuracy. Unilateral systematic actions of tennis players caused contralateral asymmetries, evidencing the importance of implementing compensatory training. The forehand kinematic assessment suggests that racket and wrist amplitude, as well as speed, are important success determinants in tennis

Exostose Cartilaginosa Múltipla: Relato de caso

Foram atendidos dois cães da raça Teckel, ambos com histórico de dificuldade de locomoção e perda de propriocepção, sem alterações nos exames hemáticos. O primeiro cão, uma fêmea, de 4 meses de idade, apresentou ao exame radiográfico presença de massa radiopaca na metáfise distal do fêmur, proximal e distal da tíbia e proximal da fíbula esquerda, além de estruturas semelhantes nos processos espinhosos de T3, T6 e T7 e na terceira costela direita, projetando-se para o interior da cavidade torácica. O segundo cão, um macho de 6 meses de idade, apresentou massas ósseas nodulares no ísquio e ílio, e nas metáfises proximais de ambas as tíbias e distal da tíbia direita, além de alterações idênticas nas costelas, projetando-se, tanto para a superfície externa quanto interna do tórax. Portanto, após a análise radiográfica foi diagnosticado Exostose Cartilaginosa Múltipla (ECM), uma doença caracterizada por projeções ósseas recobertas por cartilagem. Adotou-se como medida terapêutica o uso de tramadol e o acompanhamento da evolução da doença