1,173 research outputs found

    O ENFRAQUECIMENTO DA DEMOCRACIA EM DECORRÊNCIA DAS POLÍTICAS LIBERAIS DE MERCADO

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    A pesquisa se insere no âmbito da jurisdição constitucional. Trabalhando com o tema o enfraquecimento da democracia em decorrência das políticas liberais de mercado. Tendo como objetivo demonstrar as consequências do processo de globalização e das políticas neoliberais de mercado no Estado Democrático. Para tanto, será necessário verificar o que não deu certo no Estado Liberal, bem como o impacto da política neoliberal na Sociedade moderna. Demonstrando-se, por fim, que o aumento da desigualdade social, a crise ambiental, os problemas de imigração e a desconstitucionalização dos direitos são fatos oriundos de uma política neoliberal que corrói as estruturas do Estado Democrático. A metodologia utilizada será a do método indutivo, com revisão bibliográfica, histórica e de documentos. Palavras-chaves: Constitucionalismo; Democracia; Estado Liberal; Globalização

    A INFLUÊNCIA DOS ALGORITMOS NA SOCIEDADE MODERNA: UMA ANÁLISE DA DEMOCRACIA NO ESTADO CONSTITUCIONAL DEMOCRÁTICO DE DIREITO.

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    A presente pesquisa insere-se no âmbito dos estudos da jurisdição constitucional. Aborda-se a influencia dos algoritmos na Sociedade moderna, uma análise da democracia no Estado Constitucional Democrático de Direito. Tendo como problemaidentificar o vínculo entre o advento dos novos meios de comunicação e a recessão democrática dos últimos anos. Busca-se ainda, analisar a influencia dos algoritmos na Sociedade moderna, em específico, a sua capacidade de transformação noexercício da democracia. Para tanto, será necessário identificar alguns fatores que dão aporte ao estudo, quais sejam o processo de desinformação e manipulação de massa, o surgimento de um ciberespaço e o uso dos algoritmos pelos governos autocráticos extremistas. Concluindo que, não obstante, as novas tecnologias tenham ampliado o exercício das ferramentas democráticas, governos autocratas utilizam-se os mesmos meios para contribuir para a recessão da democracia. O método utilizado será o indutivo. Palavras- Chave: Ciberdemocracia; Ciberespaço; Inteligência Artificial; Pós-Verdade

    The implementation of radiation technology program in Portugal

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    The development of ionizing radiation pplications for Industrial purposes in Portugal began near of 1982 with the support of IAEA. The main steps to put forward prior to the implementation were the sitting and the design study in order to build up the facility. Subsequently, the main parameters to be achieved were the construction, the commissioning, the operation, the maintenance and the foreseen decommission. Once a quality system for the gamma facility was established, the following stage is to develop, validate and control the terilization/disinfection process. The research activities carried out in the UTR have been closely related with the main applications of this technology namely, the sterilization of medical devices and pharmaceuticals and other products’ decontamination. Recently, a research Cobalt-60 equipment was upgraded and a LINAC was implemented in order to sustain the R&D. Fundamental and development research is ngoing in order to understand the irradiation mechanisms of action and to apply the technology with safety and quality patterns.The first author would like to thank Gulbenkian Foundation in Portugal and NIC2010 the financial support for the opportunity to participate at NAARRI International Conference

    Presbyvestibulopathy, Comorbidities, and Perception of Disability: A Cross-Sectional Study

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    Objective: To assess the perception of disability in patients with presbyvestibulopathy and to determine the factors (demographic, balance test scores, and comorbidities) that determine higher levels of disability. Material and Methods: This was a cross-sectional study conducted in a tertiary university hospital. There were 103 patients who fulfilled the diagnostic criteria for presbyvestibulopathy and were included. Dizziness Handicap Inventory (DHI) score was the main variable used to quantify disability. Influence on DHI score, sex, age, time of evolution, equilibriometric parameters (posturographic scores and timed up and go test), history of falls, comorbidities (high blood pressure, diabetes, and dyslipidemia), psychotropic drug use, tobacco or alcohol use, living environment (urban or rural), and active lifestyle were analyzed. Results: Most of the DHI scores showed a moderate (46 patients, 44.7%) or severe (39 participants, 37.9%) handicap. DHI scores were higher in women (59.8 vs. 36.1, p < 0.001), patients with obesity (58.92 vs. 48.68; p = 0.019), benzodiazepine (59.9 vs. 49.1, p = 0.008) or other psychotropic drug (60.7 vs. 49.2, p = 0.017) users, and fallers (57.1 vs. 47.3, p = 0.048). There was also a significant positive correlation between DHI score, time (Rho coefficient: 0.371, p < 0.001), and steps (Rho coefficient: 0.284, p = 0.004) used in the TUG and with the short FES-I questionnaire (a shortened version of the Falls Efficacy Scale-International) score (Rho coefficient: 0.695, p < 0.001). DHI scores were lower in alcohol consumers than in non-drinkers (46.6 vs. 56, p = 0.048). No significant correlation was found between DHI scores and age, time of evolution, posturographic scores, comorbidities, environment (rural or urban), or active lifestyle. Conclusion: Most patients with presbyvestibulopathy show an important subjective perception of disability in relation to their symptoms. This perception is substantially higher in women than in men. The most influential factors are difficulties in walking, fear of falling, and obesity. Unique Identifier: NCT03034655, www.clinicaltrials.gov

    Modified Timed Up and Go Test for Tendency to Fall and Balance Assessment in Elderly Patients With Gait Instability

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    Objective: To compare the results from the modified Timed Up and Go Test (TUG) with posturographic variables, the subjective perception of disability due to gait instability, and the number of falls in a sample of the elderly population with imbalance, to confirm that the TUG Test is a useful clinical instrument to assess the tendency to fall in individuals of this age group. Materials and Methods: Cross-sectional study conducted in a tertiary university hospital, in 174 people aged 65 years or older with gait instability. Modified TUG Test was performed; time, step count and the need for support during the test were the analyzed variables. They were compared with the number of falls, Computerized Dynamic Posturography scores, and questionnaires scores (Dizziness Handicap Inventory and a shortened version of the Falls Efficacy Scale-International). Results: The average time to complete the TUG Test was 21.24 +/- 8.18 s, and the average step count was 27.36 +/- 7.93. One hundred two patients (58.6%) required no support to complete the test, whereas the other 72 (41.4%) used supports. The time taken to complete the Test was significantly related with having or not having fallen in the previous year, with the scores of the questionnaires, and with various parameters of dynamic posturography. A higher percentage of patients who took more than 15 s had fallen in the previous year than those who took up to 15 s to complete the test [P = 0.012; OR = 2.378; 95% CI (1.183, 4.780)]. No significant correlation was found between the step count and the number of falls in the previous year, with falling during the test or not, or with being a single or a frequent faller. No relation was found between the need for supports and the number of falls, with having or not having fallen in the previous year, or with being a single or frequent faller. Conclusion: The modified TUG Test is in relation with the presence or absence of falls. Time is the essential parameter for analyzing the risk of falling and the 15-s threshold is a good value to differentiate elderly patients at high risk of falling. Unique Identifier: NCT03034655, www.clinicaltrials.gov

    Quantum Mechanical Approaches for Piezoelectricity Study in Perovskites

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    In this chapter, we show the procedures we have been used to theoretically investigate the piezoelectric effects in perovskites. The construction of extended basis sets using the generator coordinate Hartree-Fock (GCHF) method is shown, as well as the strategies used to contract extended basis sets and to evaluate their quality in molecular calculations. Besides, we show adequate procedures to choice polarization and diffuse functions to best represent the studied crystal. In addition, we also discuss conditions under which GCHF basis sets and standard basis sets from literature can be used to theoretical investigation of piezoelectricity in perovskites. We finalize the chapter presenting and discussing the results for investigations of piezoelectricity with standard basis sets for barium and lanthanum titanates. To conclude, we present evidences that BaTiO3 and LaTiO3 may have piezoelectric properties caused by electrostatic interactions

    Acute Capsaicin Analog Supplementation Improves 400 M and 3000 M Running Time-Trial Performance

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    International Journal of Exercise Science 13(2): 755-765, 2020. Objectives: Performance in running-based sport depends on the ability to perform repetitive high intensity muscle contractions. Previous studies have shown that capsaicin analog (CAP) (i.e. Capsiate) supplementation may improve this performance. The purpose of this study was to investigate the acute effect of CAP supplementation on short (400 m) and middle distance (3000 m) running time-trial performance, maximum heart rate (HR), and rate of perceived exertion (RPE). Methods: Twelve physically active men completed four randomized, double-blind trials: CAP condition (12 mg) or a placebo condition. Forty-five minutes after supplementation, the participants performed a 400- or 3000-meter running time trial. Time (in seconds) was recorded. HR was analyzed at rest and immediately post-exercise, and RPE was collected immediately after exercise. Results: For both the 400 m time-trial (CAP = 66.4 + 4.2 sec vs Placebo = 67.1 + 4.8 sec, p = 0.046) and the 3000 m time-trial (CAP = 893.9 ± 46.8 sec vs Placebo = 915.2 ± 67.6 sec, p = 0.015), the time in seconds was significantly less in the CAP compared to placebo conditions. There were no statistically significant differences for HR and RPE in any condition. Conclusion: In summary, acute CAP supplementation improved 400 m and 3000 m running time-trial performance in a distance-dependent way but without modifying the HR and RPE
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