Abstract: The objective of this study is to analyze the relationship between usability and satisfaction in university students using ChatGPT. Since its launch, the use of ChatGPT by university students has increased significantly in most universities around the world. This software can generate answers to any type of question, emulating the experience of interacting with a real person. A survey with Likert-type questions is applied to 250 university students and a covariance-based structural equation model is constructed. The results show and adjusted model with factor loadings and an acceptable Cronbach's Alpha (usability α=0.80 and satisfaction α=0.85), CFI=0.921 and RMSA=0.0112. The p-value of the Kolmogorov-Smirnov normality test is 0.0245. In conclusion, the results of the model allowed accepting the research hypothesis-there is a positive and direct relationship between usability and satisfaction.

Resumen: El objetivo de este estudio es analizar la relación entre usabilidad y satisfacción en estudiantes universitarios que utilizan ChatGPT. Desde su lanzamiento, el uso de ChatGPT por parte de estudiantes universitarios se ha incrementado notablemente en la mayoría de universidades del mundo. Este software puede generar respuestas a cualquier tipo de pregunta, emulando la experiencia de estar interactuando con una persona real. Se aplica una encuesta con preguntas tipo Likert a 250 estudiantes universitarios y se construye un modelo de ecuaciones estructurales basado en covarianzas. Los resultados muestran un modelo ajustado con cargas factoriales y un Alfa de Cronbach aceptable (usabilidad α=0.80 y satisfacción α=0.85), CFI=0.921 y RMSA=0.0112. El valor p de la prueba de normalidad de Kolmogorov-Smirnov es de 0.0245. En conclusión, los resultados del modelo permiten aceptar la hipótesis de investigación, existe una relación positiva y directa entre usabilidad y satisfacción.

Bernard Lazarus Emanuel Sigamoney was born in 1888 as part of the indentured labour community. His parents ensured that he received an education and this helped him climb the social ladder in local communities in Durban and Transvaal. Consequently, his name became linked to the scout, sport, social, religious, and political movements of the day. He died in 1963 leaving behind a footprint that calls for recognition. This article placed Sigamoney, a South African politically active schoolteacher, under scholarly analysis. His circumstances of being subjected to institutional racism and forced removals make a coherent narrative an impossible task for a historian. Therefore, a disjointed but important narrative from the scraps left behind in newspaper accounts, internet searchers, and general history sources was constructed. These accounts revealed how he contributed to South African political liberation on a national and local community level. The political networks he created also present readers with a window into twentieth century resistance movements in local communities. His voice was also present in the early socialist and later anti-apartheid sports movements. He used his position as a schoolteacher to launch actions that challenged the segregation and apartheid regime of the day.

Abstract: In the last decade, various initiatives have been launched to improve the distribution of Uruguayan cinema, which has historically struggled to compete with the market dynamics dominating the commercial circuit. Notable among these efforts is the establishment of a new circuit for national cinema through public venues and collaboration with the Cinemateca Uruguaya, as well as the development and launch of the streaming platform CineUY. In this interview, we speak with Gabriel Massa, one of the most significant distributors and cultural managers of national and independent cinema in Uruguay, about the main challenges in distribution and the unique aspects of CineUY: its potential as a repository of national cinema and the weaknesses that have hindered its broader visibility

Resumo: Na última década, foram promovidas diferentes iniciativas para melhorar a distribuição do cinema uruguaio, cuja presença em cartaz cinematográfico confrontou historicamente a lógica do mercado que rege o circuito comercial. Neste sentido, destacam-se a criação de um novo circuito de cinema nacional através de salas públicas e a articulação com a Cinemateca Uruguaya, bem como a concepção e lançamento da plataforma de streaming CineUY. Nesta entrevista conversamos com Gabriel Massa, um dos mais relevantes distribuidores e gestores culturais do cinema nacional e independente no Uruguai, sobre os principais desafios de sua distribuição e as particularidades do CineUY: seu potencial como repositório do cinema nacional e as fragilidades que têm impedido uma maior visibilidade desta plataforma

Resumen: En la última década se han impulsado diferentes iniciativas para mejorar la distribución del cine uruguayo, cuya presencia en carteleras de cine se ha enfrentado históricamente a las lógicas del mercado que rigen el circuito comercial. Se destacan, en este sentido, la creación de un nuevo circuito para el cine nacional a través de salas públicas y la articulación con Cinemateca Uruguaya, así como el diseño y lanzamiento de la plataforma streaming CineUY. En esta entrevista, conversamos con Gabriel Massa, uno de los distribuidores y gestores culturales más relevantes del cine nacional e independiente en Uruguay, acerca de los principales desafíos de su distribución y las particularidades de CineUY: su potencial como repositorio del cine nacional y las debilidades que han impedido una mayor visibilidad de esta plataforma

Abstract Objective: ChatGPT is an AI (artificial intelligence) pre-trained based in GPT-3.5 architecture, which was launched in November 2022. This AI simulates an every-day chat, responding to different sorts of topics and its widely used in scientific production. Our objective is to identify and analyze the publication trends about ChatGPT and its uses in medicine around the world. Method: Published article since ChatGPT launch (2022) until April 2023 were included. Medline and Embase data bases were used to run the search. We evaluated the impact factor (IF) 2021, the Journal Citation Reports (JCR) using Clarivate Analytics and H index using SCImago. We also used map analysis through VOSViewer and graphed the data. Results: The search gathered 533 articles which were reduced and picked 309 of them. Cureus journal and medRxiv lead the most publications top ten. Only three of the urology-related journals have publications regarding ChatGPT. USA, England and Netherlands are the countries with most scientific productions and the most frequent type of article were original articles (22.7%). Conclusion: ChatGPT may be the beginning of a new worldwide era which will ease-up several processes in healthcare. Different medical sciences are investigating around this tool looking for opportunities and disadvantages. It is fundamental to know the uses and limitations with this type of chatbot for applying it in healthcare without trespassing ethical boundaries.

Resumen Objetivo: ChatGPT (transformador preentrenado generativo de Chatbot) es un sistema generativo preentrenado basado en la arquitectura GPT-3.5, que fue presentado en noviembre de 2022. Este simula una conversación habitual al responder preguntas y tiene gran lugar en la redacción científica. Nuestro objetivo es identificar y analizar la tendencia de las publicaciones sobre ChatGPT en el ámbito de la medicina a nivel mundial desde su lanzamiento. Método: Se incluyeron artículos desde su origen (2022) hasta abril de 2023 mediante las bases de datos Medline y Embase. Evaluamos el factor de impacto (FI) 2021, el Journal Citation Reports (JCR) por medio de Clarivate Analytics y el índice H por medio de SCImago. Realizamos un análisis por mapeo mediante VOSViewer y se graficaron los datos. Resultados: Se obtuvieron 533 artículos de los cuales al ser depurados fueron elegidos 309. La revista Cureus y medRxiv encabezan el top diez con la mayor cantidad de publicaciones. Tan solo tres revistas de urología tienen sus publicaciones relacionadas con el tema. EE.UU., Inglaterra y Países Bajos son líder y el tipo de publicación más frecuente fueron los artículos originales (22,7%). Conclusiones: ChatGPT es el inicio de una nueva era que nos facilitará algunos procesos en el área de la salud. La literatura médica se encuentra investigando en busca de sus utilidades y desventajas. Es necesario conocer los alcances y limitaciones de este tipo de chatbot para aplicarlo en el panorama médico sin que sobrepase los márgenes de la ética.

Abstract: Launching and landing rockets on the Earth and in space have had intensive research and development in the last years. The idea of reducing costs is related regularly to the reusability of some mission stages. Though the launch has attracted attention due to including the main engines fundamental to boosting spacecraft onto an orbital or interplanetary trajectory, the landing takes relevance in space missions. While the rocket’s landing has been carried out on Earth using an autonomous spaceport drone ship, it is challenging to design intelligent model-free systems that can continuously learn and compensate for slight deviations until they meet the target. This paper focuses on studying vertical rocket landing using convolutional neural networks. Assuming that the rocket is near the landing area, an attitude rocket control is proposed using a vision system to recognize it and drive -the nozzle TVC. Experimental results show the attitude control commanded by a nozzle TVC of an experimental rocket under different conditions.

SIGNIFICANCE: Uploading unreviewed manuscripts to a preprint server promotes accessibility and facilitates rapid breakthroughs. We, however, question the motivation of Berger and colleagues who used the new eLife publishing model to launch what appeared to be a carefully curated media campaign around an unreviewed narrative, thereby manipulating accepted norms in scientific publishing. This team has engaged in ostentatious public displays under the guise of promoting science, including launching precious fossil remains into space. Given these ethical concerns, we call on the public, heritage and scientific practitioners to reflect on the current state, and future, of human evolution research.

La cesárea es una intervención que salva vidas, pero su uso sin indicación obstétrica está relacionado con complicaciones a corto y largo plazo. Brasil es conocido internacionalmente por sus elevadas tasas de este procedimiento, que son aún mayores en el sector privado. Para revertir este problema, la Agencia Nacional de Salud Complementaria lanzó el Programa Parto Adecuado, y este estudio tiene como objetivo analizar su efectividad. En este estudio retrospectivo, incluimos todos los nacimientos en maternidades privadas que ocurrieron entre el 2014 y el 2019 para comparar la evolución de las tasas de cesáreas en hospitales participantes y no participantes del proyecto, con base en las bases de datos públicas del Sistema de Informacines de Nacidos Vivos (SINASC). Se analizaron 277.747 nacimientos, y se observó una reducción en la tasa de cesáreas en ambos grupos, más pronunciada entre las participantes. No se observó ninguna reducción en las posibilidades de cesárea antes del lanzamiento del programa (2014), pero se observó una tendencia constante de reducción después del 2014, hasta que se volvió significativa en el 2018. Este resultado se produjo de forma independiente de las variables demográficas, maternas y de los grupos de Robson. La tasa de cesáreas de los hospitales participantes en el programa pasó del 83,8% al 72,3% (intervalo de 95% de confianza - IC95%: 71,7-72,9). A pesar de la reducción, se mantiene muy por encima de las tasas esperadas según la herramienta del c-model, que sería del 45,2% (IC95%: 33,9-56,5) para esta población. Los resultados de este estudio mostraron que una política pública bien conducida con la participación de instituciones privadas puede cambiar el escenario de la atención al parto y al nacimiento, promoviendo la reducción de las elevadas tasas de cesárea. vidas plazo procedimiento privado problema Adecuado efectividad retrospectivo 201 proyecto SINASC. SINASC . (SINASC) 277747 277 747 277.74 , (2014) 2018 demográficas Robson 838 83 8 83,8 723 72 3 72,3 intervalo 95 IC95% IC95 IC 71,772,9. 717729 71,7 72,9 71 7 9 71,7-72,9) cmodel, cmodel c model, model c-model 452 45 2 45,2 (IC95% 33,956,5 339565 33,9 56,5 33 56 5 33,9-56,5 población nacimiento 20 (SINASC 27774 27 74 277.7 (2014 83, 72, IC9 772 71,772,9 71772 717 71, 729 71,7-72,9 4 45, (IC95 956 33,956, 33956 339 33, 565 56, 33,9-56, 2777 277. (201 77 71,772, 7177 71,7-72, (IC9 33,956 3395 33,9-56 (20 71,772 71,7-72 (IC 33,95 33,9-5 (2 71,77 71,7-7 33,9- ( 71,7-

A cesárea é uma intervenção que salva vidas, mas seu uso sem indicação obstétrica está relacionado a complicações a curto e longo prazo. O Brasil é conhecido internacionalmente por suas altas taxas desse procedimento, ainda mais elevadas no setor privado. Para reverter esse problema, a Agência Nacional de Saúde Suplementar lançou o Programa Parto Adequado, e este estudo tem como objetivo analisar a sua efetividade. Neste estudo retrospectivo, incluímos a totalidade de nascimentos em maternidades privadas ocorridos entre 2014 e 2019 para comparar a evolução das taxas de cesárea de hospitais participantes e não participantes do projeto, a partir das bases de dados públicas do Sistema de Informações sobre Nascidos Vivos (SINASC). Foram analisados 277.747 nascimentos, sendo observada uma redução na taxa de cesárea nos dois grupos, mais acentuada entre os hospitais participantes. Não foi observada redução da chance de cesárea antes do lançamento do programa (2014), mas notou-se uma tendência constante de redução após 2014, até se tornar significativa em 2018. Esse resultado ocorreu de forma independente das variáveis demográficas, maternas e dos grupos de Robson. A taxa de cesárea dos hospitais participantes do programa foi de 83,8% para 72,3% (intervalo de 95% de confiança - IC95%: 71,7-72,9). Apesar da redução, permanece bem acima das taxas esperadas de acordo com a ferramenta c-model, que seria de 45,2% (IC95%: 33,9-56,5) para essa população. Os resultados deste estudo mostraram que uma política pública bem conduzida com o envolvimento de instituições privadas pode mudar o cenário da atenção ao parto e ao nascimento, promovendo a redução das altas taxas de cesárea. vidas prazo procedimento privado problema Adequado efetividade retrospectivo 201 projeto SINASC. SINASC . (SINASC) 277747 277 747 277.74 , (2014) notouse notou 2018 demográficas Robson 838 83 8 83,8 723 72 3 72,3 intervalo 95 IC95% IC95 IC 71,772,9. 717729 71,7 72,9 71 7 9 71,7-72,9) cmodel, cmodel c model, model c-model 452 45 2 45,2 (IC95% 33,956,5 339565 33,9 56,5 33 56 5 33,9-56,5 população nascimento 20 (SINASC 27774 27 74 277.7 (2014 83, 72, IC9 772 71,772,9 71772 717 71, 729 71,7-72,9 4 45, (IC95 956 33,956, 33956 339 33, 565 56, 33,9-56, 2777 277. (201 77 71,772, 7177 71,7-72, (IC9 33,956 3395 33,9-56 (20 71,772 71,7-72 (IC 33,95 33,9-5 (2 71,77 71,7-7 33,9- ( 71,7-

Cesarean section is a life-saving intervention, but its use without obstetric indication leads to short- and long-term complications. Brazil is internationally known for its high cesarean rates, especially in the private sector. To reverse this problem, the Brazilian National Regulatory for Private Health Insurance and Plans launched the Adequate Childbirth Program, and this retrospective study aims to analyze its effectiveness. We included the total of births performed in private maternity hospitals between 2014 and 2019 registered on the Brazilian Information System on Live Births (SINASC) database to compare the evolution of cesarean section rates in hospitals participating and not participating in the project. A total of 277,747 births were analyzed, showing a reduction in the cesarean section rate in both groups but more pronounced among the participant institutions. No reduction in cesarean performance was observed before the program launch (2014), but there was a constant downward trend after 2014, until it became significant in 2018. This result occurred independently of demographic, maternal, and Robson group variables. The cesarean section rate of hospitals participating in the program went from 83.8% to 72.3% (95% confidence interval - 95%CI: 71.7-72.9). Despite the reduction, it remains well above the expected rates according to the c-model tool, which would be 45.2% (95%CI: 33.9-56.5) for this population. Results showed that a well-conducted public policy together with private institutions can change the scenario of labor and birth care, reducing high cesarean section rates. lifesaving life saving intervention short longterm long term complications sector problem Program effectiveness 201 SINASC (SINASC project 277747 277 747 277,74 analyzed , (2014) 2018 demographic maternal variables 838 83 8 83.8 723 72 3 72.3 95% 95 (95 95%CI 95CI CI 71.772.9. 717729 71.7 72.9 . 71 7 9 71.7-72.9) cmodel c model tool 452 45 2 45.2 (95%CI 33.956.5 339565 33.9 56.5 33 56 5 33.9-56.5 population wellconducted conducted care 20 27774 27 74 277,7 (2014 83. 72. (9 772 71.772.9 71772 717 71. 729 71.7-72.9 4 45. 956 33.956. 33956 339 33. 565 56. 33.9-56. 2777 277, (201 ( 77 71.772. 7177 71.7-72. 33.956 3395 33.9-56 (20 71.772 71.7-72 33.95 33.9-5 (2 71.77 71.7-7 33.9- 71.7-

A cesárea é uma intervenção que salva vidas, mas seu uso sem indicação obstétrica está relacionado a complicações a curto e longo prazo. O Brasil é conhecido internacionalmente por suas altas taxas desse procedimento, ainda mais elevadas no setor privado. Para reverter esse problema, a Agência Nacional de Saúde Suplementar lançou o Programa Parto Adequado, e este estudo tem como objetivo analisar a sua efetividade. Neste estudo retrospectivo, incluímos a totalidade de nascimentos em maternidades privadas ocorridos entre 2014 e 2019 para comparar a evolução das taxas de cesárea de hospitais participantes e não participantes do projeto, a partir das bases de dados públicas do Sistema de Informações sobre Nascidos Vivos (SINASC). Foram analisados 277.747 nascimentos, sendo observada uma redução na taxa de cesárea nos dois grupos, mais acentuada entre os hospitais participantes. Não foi observada redução da chance de cesárea antes do lançamento do programa (2014), mas notou-se uma tendência constante de redução após 2014, até se tornar significativa em 2018. Esse resultado ocorreu de forma independente das variáveis demográficas, maternas e dos grupos de Robson. A taxa de cesárea dos hospitais participantes do programa foi de 83,8% para 72,3% (intervalo de 95% de confiança - IC95%: 71,7-72,9). Apesar da redução, permanece bem acima das taxas esperadas de acordo com a ferramenta c-model, que seria de 45,2% (IC95%: 33,9-56,5) para essa população. Os resultados deste estudo mostraram que uma política pública bem conduzida com o envolvimento de instituições privadas pode mudar o cenário da atenção ao parto e ao nascimento, promovendo a redução das altas taxas de cesárea.

La cesárea es una intervención que salva vidas, pero su uso sin indicación obstétrica está relacionado con complicaciones a corto y largo plazo. Brasil es conocido internacionalmente por sus elevadas tasas de este procedimiento, que son aún mayores en el sector privado. Para revertir este problema, la Agencia Nacional de Salud Complementaria lanzó el Programa Parto Adecuado, y este estudio tiene como objetivo analizar su efectividad. En este estudio retrospectivo, incluimos todos los nacimientos en maternidades privadas que ocurrieron entre el 2014 y el 2019 para comparar la evolución de las tasas de cesáreas en hospitales participantes y no participantes del proyecto, con base en las bases de datos públicas del Sistema de Informacines de Nacidos Vivos (SINASC). Se analizaron 277.747 nacimientos, y se observó una reducción en la tasa de cesáreas en ambos grupos, más pronunciada entre las participantes. No se observó ninguna reducción en las posibilidades de cesárea antes del lanzamiento del programa (2014), pero se observó una tendencia constante de reducción después del 2014, hasta que se volvió significativa en el 2018. Este resultado se produjo de forma independiente de las variables demográficas, maternas y de los grupos de Robson. La tasa de cesáreas de los hospitales participantes en el programa pasó del 83,8% al 72,3% (intervalo de 95% de confianza - IC95%: 71,7-72,9). A pesar de la reducción, se mantiene muy por encima de las tasas esperadas según la herramienta del c-model, que sería del 45,2% (IC95%: 33,9-56,5) para esta población. Los resultados de este estudio mostraron que una política pública bien conducida con la participación de instituciones privadas puede cambiar el escenario de la atención al parto y al nacimiento, promoviendo la reducción de las elevadas tasas de cesárea.

Cesarean section is a life-saving intervention, but its use without obstetric indication leads to short- and long-term complications. Brazil is internationally known for its high cesarean rates, especially in the private sector. To reverse this problem, the Brazilian National Regulatory for Private Health Insurance and Plans launched the Adequate Childbirth Program, and this retrospective study aims to analyze its effectiveness. We included the total of births performed in private maternity hospitals between 2014 and 2019 registered on the Brazilian Information System on Live Births (SINASC) database to compare the evolution of cesarean section rates in hospitals participating and not participating in the project. A total of 277,747 births were analyzed, showing a reduction in the cesarean section rate in both groups but more pronounced among the participant institutions. No reduction in cesarean performance was observed before the program launch (2014), but there was a constant downward trend after 2014, until it became significant in 2018. This result occurred independently of demographic, maternal, and Robson group variables. The cesarean section rate of hospitals participating in the program went from 83.8% to 72.3% (95% confidence interval - 95%CI: 71.7-72.9). Despite the reduction, it remains well above the expected rates according to the c-model tool, which would be 45.2% (95%CI: 33.9-56.5) for this population. Results showed that a well-conducted public policy together with private institutions can change the scenario of labor and birth care, reducing high cesarean section rates.

Objective: The advancement of neuroimaging and genetic research has revealed the presence of morphological abnormalities and numerous risk genes, along with their associations. We aimed to estimate magnetic resonance imaging-derived cortical thickness across multiple brain regions. Methods: The cortical thickness of 129 schizophrenia patients, 42 of their unaffected siblings, and 112 healthy controls was measured and the candidate genes were sequenced. Comparisons were made of cortical thickness (including 68 regions of the Desikan-Killiany Atlas) and genetic variants (in 108 risk genes for schizophrenia) among the three groups, and correlation analyses were performed regarding cortical thickness, clinical symptoms, cognitive tests (such as the N-back task and the logical memory test), and genetic variants. Results: Schizophrenia patients had significantly thinner bilateral frontal, temporal, and parietal gyri than healthy controls and unaffected siblings. Association analyses in target genes showed that four single nucleotide variants (SNVs) were significantly associated with schizophrenia, including thioredoxin-related transmembrane protein 2-catenin, cadherin-associated protein, delta 1 (SNV20673) (positive false discovery rate [PFDR] = 0.008) and centromere protein M (rs35542507, rs41277477, rs73165153) (PFDR = 0.030). Additionally, cortical thickness in the right pars triangularis was lower in carriers of the SNV20673 variant than in non-carriers (PFDR = 0.048). Finally, a positive correlation was found between right pars triangularis cortical thickness and logical memory in schizophrenia patients (r = 0.199, p = 0.032). Conclusions: This study identified regional morphological abnormalities in schizophrenia, including the right homologue of Broca’s area, which was associated with a risk variant that affected delta-1 catenin and logical memory. These findings suggest a potential association between candidate gene loci, cortical thickness, and schizophrenia. Objective associations imagingderived imaging derived Methods 12 4 siblings 11 sequenced 6 DesikanKilliany Desikan Killiany Atlas 10 groups symptoms such Nback N back test, test , test) Results frontal temporal SNVs (SNVs thioredoxinrelated thioredoxin related 2catenin, 2catenin 2 catenin, 2-catenin cadherinassociated cadherin SNV (SNV20673 PFDR [PFDR 0.008 0008 0 008 rs35542507, rs35542507 rs (rs35542507 rs41277477 rs73165153 0.030. 0030 0.030 . 030 0.030) Additionally SNV2067 noncarriers non 0.048. 0048 0.048 048 0.048) Finally r 0199 199 0.199 0.032. 0032 0.032 032 0.032) Conclusions Brocas Broca s area delta1 delta- loci (SNV2067 0.00 000 00 rs3554250 (rs3554250 rs4127747 rs7316515 003 0.03 03 SNV206 004 0.04 04 019 19 0.19 (SNV206 0.0 rs355425 (rs355425 rs412774 rs731651 SNV20 01 0.1 (SNV20 0. rs35542 (rs35542 rs41277 rs73165 SNV2 (SNV2 rs3554 (rs3554 rs4127 rs7316 (SNV rs355 (rs355 rs412 rs731 rs35 (rs35 rs41 rs73 rs3 (rs3 rs4 rs7 (rs

We present the video analysis of the oblique launch of five Styrofoam balls into the air, highlighting the effect of the drag force. Graphs of the trajectories, position, and velocity coordinates as a function of time are obtained numerically using the fourth-order Runge-Kutta method (RK4) and superimposed on the experimental data and compared to the ideal case without drag force. The values of the drag coefficients used in the RK4 numerical calculation are compatible with those presented in the literature. Measurements of each system’s kinetic, gravitational potential and mechanical energies, as well the modulus of the work of the drag force were obtained as a function of time, showing that the reduction in mechanical energy is more pronounced in the intervals where the variation of the kinetic energy is greater. air trajectories position fourthorder fourth order RungeKutta Runge Kutta RK (RK4 literature systems system s energies greater (RK

Apresentamos a videoanálise do lançamento oblíquo de cinco bolas de isopor no ar, evidenciando o efeito da força de arrasto. Gráficos das trajetórias, das coordenadas de posição e velocidade em função do tempo são obtidas numericamente pelo método Runge-Kutta de quarta ordem (RK4) e superpostas aos dados experimentais, sendo também comparadas ao caso ideal sem força de arrasto. Os valores dos coeficientes de arrasto utilizados no cálculo numérico RK4 são compatíveis com aqueles apresentados na literatura. Foram obtidas as medidas das energias cinética, potencial gravitacional, mecânica e do módulo do trabalho da força de arrasto de cada sistema em função do tempo, mostrando que a redução da energia mecânica é mais pronunciada nos intervalos onde a variação da energia cinética é maior. ar trajetórias RungeKutta Runge Kutta RK (RK4 experimentais literatura gravitacional maior (RK

ABSTRACT This paper explores the relationship between adherent utterances in architectural objects and the formation of discursive ethos in São Paulo’s residential architecture. To that end, it uses the theoretical and methodological principles of discourse analysis and research in toponymy and focuses on a central area of the city. Such area was selected because it is experiencing an ever-growing real state transformation process, in which several construction stages can be observed. The temporal-thematic focus of the study was defined by the affirmation of modern architecture, up to the launch of contemporary new properties. The study is carried out by searching for adherent utterances in urban landscape, looking at the adherence relationship between the utterance and its support, establishing suitable observation parameters for the adherence utterances identified, and analyzing and characterizing the utterances in accordance with the architectural language of their supports. The results based on the considerations on scenography and interdiscursive relations suggest that the adherent statements constitute a privileged place for observing architecture and urban changes, as well as the discourses on them, in the central area of the city of São Paulo. Paulos Paulo s end evergrowing ever growing process observed temporalthematic temporal thematic properties landscape support identified supports changes them

RESUMO Este trabalho investiga a relação entre enunciação aderente e objetos arquitetônicos, discutindo os efeitos de sentido depreendidos pelos dispositivos discursivos de cenografia e ethos na arquitetura residencial paulistana. Com base nos princípios teóricos e metodológicos da análise do discurso e pesquisas na área da toponímia, é estruturada uma pesquisa de recorte geográfico com foco numa área central da cidade de São Paulo sujeita a diversas etapas de construção e em processo de transformação imobiliária crescente, com recorte temático-temporal definido pela afirmação da arquitetura moderna ao lançamento de novos imóveis na atualidade. Após considerações sobre os enunciados aderentes na paisagem urbana e a relação de aderência entre o enunciado e seu suporte, passa-se ao detalhamento do corpus delimitado para análise. Estabelecem-se, em seguida, os parâmetros de observação para o estudo dos enunciados aderentes, analisando-os e caracterizando-os de acordo com a área e a linguagem arquitetônica delimitada. Finalmente, as considerações sobre cenografia e relações interdiscursivas permitem concluir que os enunciados aderentes constituem um lugar privilegiado de observação da arquitetura, das transformações urbanas e dos discursos sobre tais transformações, na área central da cidade de São Paulo. arquitetônicos paulistana toponímia crescente temáticotemporal temático temporal atualidade suporte passase passa se Estabelecemse, Estabelecemse Estabelecem se, Estabelecem-se seguida analisandoos analisando caracterizandoos caracterizando delimitada Finalmente

ABSTRACT Understanding of various aerodynamic factors involved in flight trajectories is fundamental to design launch vehicles. First and foremost, computer simulation is an efficient way of predicting its behavior in the movement across the atmosphere. Considering that the available Brazilian version of Analysis, Simulation and Trajectory Optimization Software for Space Applications (Astos) does not simulate a controlled vehicle in six degrees of freedom (DoF), the aim of this article is to complement the Astos outcomes, particularly evaluating the trajectory of a controlled launch vehicle from liftoff to orbit injection, considering the model of rigid body dynamics with a six DoF. This approach carried out with an in-house developed simulator called Scott that simulated a multistage launcher with three flight configurations. In the Scott computer program, a launcher was modeled with differential equations in six DoF, coupled axes attitude control system, and aerodynamic coefficients that changed as a function of Mach number. These features improved the results generated by Astos software for the same configurations and the same initial conditions. Additionally, the results provided by Scott were close to actual vehicle in terms of attitude change and Mach number reached. vehicles foremost atmosphere Analysis (Astos DoF , (DoF) outcomes injection inhouse house program system conditions Additionally reached (DoF

ABSTRACT India and Indonesia propose a bilateral cooperation to develop and operate telemetry, tracking, and control (TCC) ground stations to support satellite missions on geostationary orbits with the use of Geostationary Satellite Launch Vehicle (GSLV) since 1997, in order to master and commercialize space technology. This cooperation needs to be assessed in order to identify how it will affect Indonesia and India and to establish an improvement strategy for improved business and ways to integrate. The objectives of this paper are to (i) evaluate the benefits and cost of this cooperation, (ii) map the business model of the telemetry, tracking and command ground station in Biak, and (iii) design a new strategy to get competitiveness. Descriptive analysis with canvas mapping and transaction cost perspective is the approach utilized. The article’s results highlight that (i) Indonesia and India have mutual benefits from tangible and intangible side, (ii) Indonesia has a competitive advantage due to its geographic location and commercialization of Biak Ground Station, so its potential to Telemetry, Tracking, and Command (TT&C) commercial businesses in the future, not only to domestic, but also international market, and (iii) Indonesia needs collaborate with commercial entities and making optimum diplomation with G2B schema to get beneficially among parties to maximize TT&C infrastructure in Biak Island. telemetry TCC (TCC GSLV (GSLV 1997 technology integrate i (i ii (ii iii (iii competitiveness utilized articles article s side Station Telemetry Tracking TTC TT C (TT&C future domestic market GB G B Island 199 19 1

ABSTRACT With modern technology, only a small percentage of the overall mass of a launch vehicle, usually less than 5%, can be used as payload mass. To achieve any acceptable performance, a key aspect that is exhaustively analyzed during vehicle design is the definition of the number and sizes of its stages. The problem of finding the best vehicle configuration for a given mission is called staging optimization. This work presents the formulation and a resolution method for the staging optimization of a launch vehicle. The problem is formulated as an optimal control problem (OCP) and, for its solution, a direct approach, employing a gradient-based algorithm as solver, is proposed. An application is performed for the Brazilian microsatellite launcher VLM-1. This vehicle has a notable characteristic that, in its nominal configuration, the first and second stages are very similar to each other (same solid rocket motor with the same quantity of propellant). Different vehicle configurations are investigated which result in an improvement in its performance. The obtained results show good agreement with those from a commercial optimization tool. technology 5 5% performance OCP (OCP solution approach gradientbased gradient based solver proposed VLM1. VLM1 VLM 1. 1 VLM-1 propellant. propellant . propellant) tool VLM-

Resumo O livro de estreia de Geovani Martins, O sol na cabeça (2018), foi instantaneamente recebido com elogios pela crítica, sendo divulgado pela própria editora, a Companhia das Letras, como “o novo fenômeno literário brasileiro vendido para 9 países”. Diferentemente de muitas obras brasileiras traduzidas, que levam tempo para aportar em outras línguas, o livro de Martins foi traduzido e lançado com apenas um ano de diferença para o inglês, o alemão, francês e espanhol. Este trabalho procura refletir sobre o papel da divulgação e da recepção deste livro em solo nacional e estrangeiro de língua inglesa, procurando analisar a formação de uma imagem dessa obra e do escritor através da reescrita, seja esta tanto por meio das resenhas críticas em âmbito nacional e internacional, quanto da tradução para o inglês do livro, conduzida por Julia Sanches e publicada em 2019 pela Farrar Straus & Giroux (EUA) e Faber & Faber (Reino Unido). De modo específico, na primeira parte deste artigo apresenta-se uma análise dos materiais paratextuais ao livro, tanto os presentes na própria obra, como os externos à obra, além de uma breve análise das resenhas publicadas nos primeiros meses do lançamento do livro. Na segunda parte, realiza-se uma crítica da tradução para o inglês do conto “Travessia” / “The Crossing” enfocando as estratégias que a tradutora utilizou para retextualizar as marcas de oralidade do texto-fonte. Pretende-se assim refletir sobre como um “fenômeno literário” é forjado via crítica e tradução, alinhando-se a novas visões sobre o português brasileiro e a literatura brasileira. 2018, 2018 , (2018) editora Letras países. países . países” traduzidas línguas alemão espanhol inglesa reescrita internacional 201 EUA (EUA Reino Unido. Unido Unido) específico apresentase apresenta se realizase realiza Travessia “Travessia The Crossing textofonte. textofonte texto fonte. fonte texto-fonte Pretendese Pretende alinhandose alinhando brasileira (2018 20 (201 2 (20 (2 (

Abstract O sol na cabeça (2018) is the first book published by Geovani Martins and it was readily received with critical acclaim, being promoted by Companhia das Letras, its publishing house in Brazil, as “the new Brazilian literary phenomenon sold to 9 countries”. Unlike many Brazilian works in translation, which take time to arrive in other languages, Martins’ book was translated and released just a year later in English, German, French and Spanish. This paper seeks to reflect on the role of dissemination and reception of this book in Brazil and in the English speaking world, in order to analyze the formation of an image of the writer and his work through rewriting, whether this be through critical reviews in Brazil and abroad, or through the English translation, done by Julia Sanches and published in 2019 by Farrar Straus & Giroux (USA) and Faber & Faber (UK). Specifically, the first part of this paper presents an analysis of the book’s paratextual materials, both those present in the work itself and those external to it, in addition to a brief analysis of the reviews published in the first months of the book’s launch. In the second part, a critique of the translation into English of the short story “Travessia” / “The Crossing” is carried out, focusing on the strategies that the translator used to retextualize the orality marks of the source text. The aim is thus to reflect on how a “literary phenomenon” is forged via criticism and translation, aligning itself with new views on Brazilian Portuguese and Brazilian literature. 2018 (2018 acclaim Letras countries. countries . countries” languages German Spanish world rewriting abroad 201 USA (USA UK. UK (UK) Specifically books s materials launch Travessia “Travessia Crossing out text literature (201 20 (UK (20 2 (2 (