Vox Clamantis in Deserto

Trabalho de projetoEste videojogo é uma narrativa interativa em primeira pessoa dentro de um ambiente digital 3D, no qual foram exploradas ferramentas procedurais para a sua criação. Vox Clamantis in Deserto é um Walking Simulator com o deserto como pano de fundo, nesse espaço inabitado existem fragmentos do passado, de tempos de fé e de crença. O jogador é convidado a explorar livremente uma civilização perdida do futuro e encontrar o seu legado. A batalha entre a crença religiosa e a crença científica é espelhada ao longo do videojogo, um confronto de ideias e condutas e as consequências de um mundo sem princípios e sem religião.This video game is an interactive first-person narrative within a 3D digital environment, in which procedural tools for its creation were explored. Vox Clamantis in Deserto is a Walking Simulator with the desert as a backdrop, in this uninhabited space there are fragments of the past, times of faith and belief. The player is invited to freely explore a lost civilization of the future and find its legacy. The battle between religious belief and scientific belief is mirrored throughout the video game, a confrontation of ideas and behavior and the consequences of a world without principles and without religion.N/

Weight gain measured at 6 weeks after birth as a predictor for severe retinopathy of prematurity: study with 317 very low birth weight preterm babies

Recent studies suggest that postnatal weight gain can play an important role in the development of retinopathy of prematurity (ROP).To analyze the low weight gain (WG) from birth to 6 weeks of life to predict the development of severe retinopathy of prematurity (ROP) among very low birth weight preterm babies (VLBW).A prospective cohort study included 317 newborns with birth weight (BW) a parts per thousand currency sign1,500 g and gestational age (GA) a parts per thousand currency sign32 weeks. the main outcome was the development of severe ROP (defined as threshold ROP and higher stages of ROP). in all patients, the proportion of the WG was defined as the preterm weight measured at 6 weeks of life minus the BW divided by the BW. Seventeen risk factors for ROP were studied by univariate analysis. Chi-square test and Student's t-test were used to compare no-ROP/mild ROP patients and severe ROP patients. Logistic regression and receiver operating characteristic (ROC) curve were used to determine if the WG proportion was independently related to severe ROP development and if it was capable of predicting severe ROP. Ophthalmological examinations started between the fourth and sixth week of life, and were repeated until the 45th week of postmenstrual age. Weight gain proportion was always calculated at completed 6 weeks of life.Mean GA and mean BW of the whole cohort were 29.6 weeks (+/- 1.9) and 1,124 grams (+/- 239.5) respectively. After logistic regression, the low WG proportion under 51.2% from the BW, measured at 6 weeks of life, showed OR 3.007 (95%CI: 1.195-7.566; P = 0.019), for severe ROP, when adjusted for BW and for any stage intraventricular hemorrhage. Area under the ROC curve was 0.63 (95%CI: 0.495-0.761; P = 0.037). for the discriminative cutoff of 51.2% of the WG proportion, sensitivity and specificity values were 66.3% and 62.6% respectively. Positive and negative predictive values were 10.2% and 94.7% respectively.Low WG by six weeks of life is an important and independent risk factor for severe ROP and is capable to predict the development of severe ROP in most patients that needed treatment.Univ Fed Rio Grande do Sul, Sch Med, Dept Ophthalmol, BR-90035003 Porto Alegre, RS, BrazilHosp Clin Porto Alegre, BR-90035003 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Dept Pediat, Newborn Sect, BR-90035003 Porto Alegre, RS, BrazilUniversidade Federal de São Paulo, Sch Med, Dept Ophthalmol, São Paulo, BrazilUniversidade Federal de São Paulo, Sch Med, Dept Ophthalmol, São Paulo, BrazilWeb of Scienc

Avaliação de Métodos de Cálculo de Exigência de Capital para Risco de Mercado de Carteiras de Ações no Brasil

This paper analyses four methods of calculating capital requirements for coverage of market risk generated by exposure in stocks and their derivatives, except options. For simulation purposes, two theoretical portfolios were created with some assets that compose Ibovespa. The methods evaluated follow the directives of the Basel Committee. The first is based on the standardized approach and the others, on the approach of proprietary models based on the Value-at-Risk (VaR) concept. The backtesting of the methods follows the methodology suggested by the Committee. Additionally, the Kupiec test for proportion of failures is applied to the methods based on VaR.

How does the ride-hailing systems demand affect individual transport regulation?

This paper analyses, on the light of the Brazilian legislation, the individual transport legal issues derived by the entrance of the ride-hailing companies into the market. The legal problem of ridesourcing services revolves around determining its nature as public or private. Regarding this, changes in the current legislation have being proposed to characterize the service as illegal or legal and to force the delimitations of its operation before the transport network of each municipality. In addition, this paper analyses socio demographic and travel characteristics of the Brazilian ridesourcing demand. Based on this demand point of view, a logistic regression model was generated to predict the probability of riderspliting system use. The results show that the majority of ridesourcing trips is replacing taxi and public transport trips. According to the logistic regression model, safety is the main reason that influences the decision of sharing trips via ridespliting. The other relevant factors are directly or indirectly related to service cost. The use of larger vehicles for sharing trips can become a competitive mode for public transport and generate a greater clash between public transport and ridesourcing companies than the one between the taxi industry and technology companies.Institute of Transport and Logistics Studies. Faculty of Economics and Business. The University of Sydne

Syphilitic Coronary Artery Ostial Stenosis Resulting in Acute Myocardial Infarction Treated by Percutaneous Coronary Intervention

Cardiovascular abnormalities are well-known manifestations of tertiary syphilis infections which although not frequent, are still causes of morbidity and mortality. A less common manifestation of syphilitic aortitis is coronary artery ostial narrowing related to aortic wall thickening. We report a case of a 46-year-old male admitted due to acute anterior ST elevation myocardial infarction submitted to primary percutaneous coronary intervention successfully. Coronary angiography showed a suboccluded ostial lesion of left main coronary artery. VDRL was titrated to 1/512. The patient was discharged with treatment including benzathine penicillin. Previous case reports of acute myocardial infarction in association with syphilitic coronary artery ostial stenosis have been reported, but the fact that the patient was treated by percutaneous coronary intervention is unique in this case

Psicopatologia no cinema brasileiro: um estudo introdutório

Os autores procuraram localizar cenas com psicopatologia nos filmes brasileiros de 1994 a 2004 (período da retomada do cinema nacional). O objetivo foi desenvolver mais uma ferramenta para o ensino da psicopatologia. De uma amostra de conveniência com 45 filmes, 27 satisfizeram os critérios de seleção (60%). Predominaram cenas ilustrando transtornos de personalidade, uso e abuso de drogas, alucinações e questões ligadas à sexualidade. Há um excelente material para o ensino de psicopatologia.Brazilian movies from 1994 to 2004 were investigated in search of psychopathology scenes that might be useful for teaching purposes. Forty five movies from the period were seen, and 27 selected mainly with personality disorders, drug abuse and dependence, hallucination scenes. A recommendation of how to use them to teach psychopatology was made

Avaliação de Métodos de Cálculo de Exigência de Capital para Risco Cambial

This paper examines models of capital requirement determination for financial institutions in order to cover market risk stemming from exposure to foreign currencies and gold. The models examined belong to two groups according to the approach involved: standardized and internal models. In the first group, we examine the Basel model and the model adopted by the Brazilian legislation, in two versions: before and after the change which enabled the offsetting of opposite positions in American Dollar, Euro, Sterling Pound, Yen, Swiss Franc and gold, implemented by Circular no. 3,217, of 12/19/2003,further modified by Circular no. 3,229, of 03/25/2004. In the second group, we consider the models based on the concept of value at risk (VaR). We analyze the single and double-window historical model, the exponential smoothing model (EWMA) and a hybrid approach that combines features of both models. The results suggest that the Basel model is inadequate to the Brazilian market, exhibiting a large number of exceptions. The model of the Brazilian legislation has no exceptions, though generating higher capital requirements than other internal models based on VaR, even with the changes introduced by Circular no. 3,229. In general, VaR-based models perform better and result in less capital allocation than the standardized approach model applied in Brazil.

Avaliação do teor de flúor e pH em diferentes soluções para bochechos no mercado nacional

In this study, the fluoride concentration and pH of 14 commercial brands of mouthrinses were assessed in order to compare them with the values expressed on the labels and with those established by the National Sanitary Surveillance Agency. Forty-two (42) products were obtained from three places, with different manufacturing batches. The fluoride concentration was determined in diluted solutions, using a combined specific electrode for fluoride ion (9609 BN Orion Research) and ion analyzer (290 A Orion Research). The results showed that 50% of the solutions had statistically significant differences, with higher fluoride concentrations than those expressed on the labels, and the pH ranged from 4.23 to 7.34, but only one of the products registered the pH value on its label.No presente estudo, o teor de flúor e o pH de 14 marcas comerciais de soluções para bochechos foram avaliados a fim de comparar com os valores expressos nos rótulos e com aqueles determinados pela Agência Nacional de Vigilância Sanitária. Foram adquiridos 42 produtos em três localidades, com diferentes lotes de fabricação. A concentração de flúor foi determinada em soluções diluídas, utilizando-se eletrodo específico combinado para íon flúor (9609 BN Orion Research) e analisador de íons (290 A Orion Research). Os resultados mostraram que 50% das soluções apresentaram diferenças estatisticamente significantes, com concentrações de flúor superiores àquelas expressas nos rótulos e o pH variou entre 4,23 a 7,34, mas apenas um dos produtos registrou o valor do pH em seu rótulo