DA “QUARESMA” E “CARNAVAL” DO CORPO MEDIEVAL AO CORPO EXITOSO DE JOVENS DO ARAGUAIA-TOCANTINS: atos de currículo e as objetificações corporais

Resumo: Do culto ao corpo de Cristo no medievo latino (le Goff, 2018) passando pela renascença, até chegar ao “corpo remodelado” (Santaella, 2018) exibido nas redes sociais em selves e posts, revela-nos que o corpo tem papel importante na historiografia e que, a academia de musculação, agora é um lócus importante de subjetivação. Pesquisa realizada com 10 jovens em Palmas no Tocantins e Vila Rica na região do Vale do Araguaia, desenvolvida no PPGE. Objetivamos compreender o fenômeno de objetificação nas questões cultutais midiáticas e socioeducacionais, na busca de corpos exitosos dos jovens do Araguaia-Tocantins. Nossa problematização se dá no entorno da questão: Quais objetivações midiatizadas do corpo glorificado, exorbitante, narcisístico e sedutor, os jovens constroem de si e buscam nas academias de musculação? Nos estudos culturais a objetificação e o ato de construção de si mesmo como sujeito que a partir da centralidade da cultura, na qual a vida inividual e a coletiva associa-se a ela, essas práticas de significação incisivamente (des)constroem o sujeito e não mais o sujeito que produz as práticas de subjetivações, assim tornado-se objeto de sua própria cultura e um corpo objetificado.   Palavras-chave: Corpo; Corporeidade; Cultura das Mídias; Cibercultura. &nbsp

In vitro assessment of solvent evaporation from commercial adhesive systems compared to experimental systems

Solvents should be properly evaporated after application to dental substrates. The aim of this study was to assess the evaporation of commercial, experimental and neat solvents. The tested null hypotheses were that there are no differences in solvent evaporation regardless of its formulation and over time. Evaporation from commercial adhesive systems (Scotchbond Multipurpose Primer, Scotchbond Multipurpose Adhesive, Prime & Bond NT, Multi Bond, Excite, Single Bond 2, Adhese Primer, Adhese Bond, Xeno III A and Xeno III B) and experimental primers (35% HEMA plus 65% acetone or ethanol or water v/v) were compared to neat solvents (acetone, ethanol and water). Samples (10 &#181;L) of these products were dripped into glass containers placed on a digital precision balance. Evaporation was assessed at 0, 5, 10, 15, 30, 60, 120, 300 and 600 s times to calculate mass loss. Data were analyzed statistically by ANOVA and Bonferroni's correction (a=0.05). Acetone-based products exhibited a remarkable capacity to evaporate spontaneously over time. Neat acetone evaporated significantly more than the HEMA-mixtures and the commercial formulations (p<0.05). The incorporation of monomers and other ingredients in the commercial formulations seem to reduce the evaporation capacity. Solvent evaporation was time and material-dependent.O solvente deve ser adequadamente evaporado após aplicação ao substratos dentários. O objetivo deste estudo foi avaliar a evaporação de formulações comerciais, primers experimentais e solventes puros. As hipóteses nulas testadas foram de que não há diferenças da quantidade evaporada independentemente do material e tempo. Evaporação dos sistemas adesivos comerciais (Scotchbond multipurpose primer, Scotchbond multipurpose adhesive, Prime & Bond NT, Multi Bond, Excite, Single Bond 2, Adhese Primer, Adhese Bond, Xeno III A e Xeno III B) e primers experimentais (35% HEMA associado com 65% acetona, etanol ou água v/v) foram comparadas a solventes puros (acetona, etanol e água). Amostras (10 &#181;L) de cada produto foram dispensadas em balança de precisão digital. As massas nos tempos 0, 5, 10, 15, 30, 60, 120, 300 e 600 s foram registradas. Os dados foram analisados estatisticamente por ANOVA e Bonferroni (a=0,05). Produtos a base de acetona exibiram maior capacidade de evaporação espontânea ao longo do tempo. Acetona pura evaporou significantemente mais que as misturas de HEMA e formulações comerciais (p<0,05). A incorporação de monômeros e outros ingredientes nas formulações comerciais reduzem a capacidade de evaporação. A evaporação é dependente do produto e do tempo

(RE)CONSTRUTORES DO CORPO MIDIÁTICO DE JOVENS DO ARAGUAIA-TOCANTINS PRATICANTES DE MUSCULAÇÃO: E O FENÔMENO DE OBJETIFICAÇÃO

RESUMO: Pesquisa realizada com 10 jovens, na faixa etária de 18 a 24 anos de idade em Palmas e Vila Rica na região do Araguaia, sendo estes praticantes de exercício físico de musculação em academias. Estudo este que realizamos no Programa da Pós-Graduação em Educação (PPGE) em que objetivamos trata as (re)configurações de corpo de jovens nortistas no uso de produtos suplementares em suas práticas de exercícios de musculação em academia. Nossa temática se pauta em descrever o fenômeno de objetificação. A problematização se dá no entorno da questão de quais são os (re)construtores do corpo midiático de jovens nortistas praticantes de musculação? Metodologicamente trata-se de uma etnopesquisa realizada, conforme Macedo (2010) e de concepção fenomenológica Rocha e Maia (2017) em que busca o sentido, a (re)presentação, a descrição dos fenômenos, sejam eles sociais, culturais, educacionais. Nossos resultados perpassam pela discussão do fenômeno que elencamos e sinaliza para a objetificação de corpos jovens

Development of a computational tool for limiter edge plasma modeling with application to IGNITOR

IGNITOR is the only experiment today designed with the ambitious goal of achieving ignition. During the discharge, the First-Wall Limiter (FWL) will receive about 20 MW [B. Coppi, A. Airoldi, F. Bombarda, et al., Nucl. Fusion 41 (2001) 1253-1257] power, split between conduction/convection and radiation channels. Previous estimates suggested a peak heat flux on the FWL close to 1 MW/m2. This value should be re-evaluated, accounting for the latest developments in the design of the IGNITOR first wall and changes in the operational scenarios, in order to assess the risk of damages to the FWL deriving from the combination of thermal and mechanical stresses. For this purpose, the development of the ASPOEL code, implementing a 2D model of the edge plasma and including a detailed representation of the FWL, was started at Politecnico di Torino. Here we present the main features of the new code, and illustrate its potential via a preliminary application to IGNITO

Role of targeted biopsy, perilesional biopsy, and random biopsy in prostate cancer diagnosis by mpMRI/transrectal ultrasonography fusion biopsy

PurposeIt is still not clear the role of perilesional biopsy (PL) and the extension of the random biopsy (RB) scheme to be adopted during mpMRI-guided ultrasound fusion biopsy (FB). To evaluate the increase in diagnostic accuracy achieved by PL and different RB schemes over target biopsy (TB).MethodsWe collected prospectively 168 biopsy-naive patients with positive mpMRI receiving FB and concurrent 24-core RB. The diagnostic yields of the different possible biopsy schemes (TB only; TB + 4 PL cores; TB + 12-core RB; TB + 24-core RB) were compared by the McNemar test. Clinically significant (CS) prostate cancer (PCA) was defined according to the definition of the PROMIS trial. Regression analyses were used to identify independent predictors of the presence of any cancer, csPCA.ResultsThe detection rate of CS cancers increased to 35%, 45%, and 49% by adding 4 PL cores, 12, and 24 RB cores, respectively (all p < 0.02). Notably, the largest scheme including 3 TB and 24 RB cores identified a small but statistically significant 4% increase in detection rate of CS cancer, as compared with the second largest scheme. TB alone identified only 62% of the CS cancers. Such figure increased to 72% by adding 4 PL cores, and to 91% by adding 14 RB cores.ConclusionsWe found that PL biopsy increased the detection rate of CS cancers as compared with TB alone. However, the combination of those cores missed about 30% of the CS cancers identified with larger RB cores, notably including a considerable 15% of cases located contralaterally to the index tumor

Risk and predictors of adverse pathology after radical prostatectomy in patients diagnosed with IUSP 1-2 prostate cancer at MRI-targeted biopsy: a multicenter analysis

Purpose: Although active surveillance (AS) is recommended for low- to favorable intermediate-risk prostate cancer (PCa), risk of upgrading at radical prostatectomy (RP) is not negligible. Available studies based on systematic transrectal ultrasound biopsy might not be applicable to contemporary cohorts diagnosed with MRI-targeted biopsy (TB). The aim of the present study is to explore rates and risk factors for adverse outcomes (AO) at RP in patients with ISUP ≤ 2 PCa detected at TB with concomitant systematic biopsy (SB). Methods: Multicenter, retrospective analysis of 475 consecutive patients with ISUP ≤ 2 PCa at MRI-TB + SB is treated with RP. AO were defined as ISUP upgrading, adverse pathology (upgrading to ISUP ≥ 3 and/or ≥ pT3 at RP, and/or pN1) (AP) or biochemical recurrence (BCR) in men with follow-up (n = 327). Results: The rate of ISUP upgrading, upgrading ≥ 3, and AP were 39%, 21%, and 43%. Compared to ISUP2, men with ISUP1 PCa had a higher rate of overall upgrading (27 vs. 67%, p < 0.001), but less upgrading to ≥ 3 (27 vs. 10%, p < 0.001). AP was more common when ISUP2 was detected with a combined MRI-TB + SB approach compared to considering TB (p = 0.02) or SB (p = 0.01) alone. PSA, PSA density, PI-RADS, ISUP at TB, overall biopsy ISUP and EAU classification were predictors of upgrading to ISUP ≥ 3 and AP. The 1 year BCR-free survival was 94% with no differences in BCR rates between subgroups. Conclusion: Upgrading in ISUP ≤ 2 PCa remains prevalent even in men diagnosed in the MRI era. The use of MRI-TB with concomitant SB allows for the accurate identification of ISUP2 PCa and predicts the risk of AO at RP