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Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2022-12-08T19:16:56Z No. of bitstreams: 1 2022 - Jo?o Pedro Silva dos Santos.pdf: 2035420 bytes, checksum: 03de458cbcdbf9ca44dbb12b16b09765 (MD5) Made available in DSpace on 2022-12-08T19:16:57Z (GMT). No. of bitstreams: 1 2022 - Jo?o Pedro Silva dos Santos.pdf: 2035420 bytes, checksum: 03de458cbcdbf9ca44dbb12b16b09765 (MD5) Previous issue date: 2022-03-30 CAPES - Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior The present dissertation is fundamentally concerned with the renewal of Brazilian cinematographic thought in the second post-war period. For this purpose, we follow the trajectory of the film critic Alex Viany since the beginning of his career, in the newspaper Di?rio da Noite (1935-36) and in the magazine Carioca (1937-45), going through the years in which he worked as a correspondent in Hollywood for the magazine O Cruzeiro (1945-48), until his return to Brazil, when he started to collaborate in the magazine A Cena Muda (1949-51) and edit, in partnership with Vin?cius de Moraes, the magazine Filme (1949). This is a phase that has been little studied in his critical production, which allowed us to evaluate their reactions and impressions in the face of concrete alternatives presented in the political and cinematographic scenario of the second half of the 1940s. Following the inverse path of Arthur Autran?s research, which analyzes the critical production of Alex Viany between the return of the United States, at the end of 1948, and the publication of the book Introdu??o ao Cinema Brasileiro, in 1959, we seek to discuss how the notions of determination (from the political party line) and mediation (from the ?field? of film criticism), as well as the ideological analyzes that informed this study, produced a reduction in the cinematographic thought of Alex Viany to the ?ideological framework? of the Brazilian Communist Party (PCB). In this sense, the study of Alex Viany?s previous intellectual trajectory aims to rescue the political dimension of his agency and reassess the formation of a realistic discourse in his cinematographic thought A presente disserta??o tem como foco a renova??o do pensamento cinematogr?fico brasileiro no segundo p?s-guerra. Para este fim, acompanhamos a trajet?ria do cr?tico de cinema Alex Viany desde o in?cio de sua carreira no jornal Di?rio da Noite (1935-36) e na revista Carioca (1937-45), atravessando os anos em que atuou como correspondente em Hollywood para a revista O Cruzeiro (1945-48), at? o retorno ao Brasil, quando passou a colaborar na revista A Cena Muda (1949-51) e a editar, em parceria com Vin?cius de Moraes, a revista Filme (1949). Trata-se de uma fase pouco estudada em sua produ??o cr?tica, a qual permitiu-nos avaliar suas rea??es e impress?es diante das alternativas concretas apresentadas no cen?rio pol?tico e cinematogr?fico da segunda metade dos anos 1940. Seguindo o caminho inverso da pesquisa de Arthur Autran, quem estudou a produ??o cr?tica de Alex Viany entre o retorno dos Estados Unidos, no final de 1948, e a publica??o do livro Introdu??o ao Cinema Brasileiro, em 1959, buscamos tamb?m discutir o modo como as no??es de determina??o (da linha pol?tica partid?ria) e media??o (do ?campo? da cr?tica cinematogr?fica), assim como as an?lises ideol?gicas que informaram este estudo, produziram uma redu??o do pensamento cinematogr?fico de Alex Viany ao ?arcabou?o ideol?gico? do Partido Comunista Brasileiro (PCB). Neste sentido, o estudo da trajet?ria intelectual pregressa de Alex Viany visa resgatar a dimens?o pol?tica de sua ag?ncia e reavaliar a forma??o de um discurso realista em seu pensamento cinematogr?fico.

Evidence of communal nesting in Kentropyx calcarata (Squamata: Teiidae) on canopy bromeliads in the Atlantic Forest of southern Bahia, Brazil

Additional file 1: Table A1. Descriptive statistics (Mean, Standard Deviation, lowest and highest scores) for the two future oriented PHEQ dimensions. Note: PH Preoperative hope scale, PE Preoperative expectations scale.

In \cite{armstrong}, M. Armstrong proved a beautiful result describing fundamental groups of quotient spaces. In this paper we prove an analogue of Armstrong's theorem in the setting of $F$-divided \cite{dS07} and essentially finite \cite{Nori76} fundamental group schemes., Final version; to appear in Tohoku Mathematical Journal

It is known that the right and the left keys of a Kashiwara-Nakashima tableau in type $C$ can be computed using the Lecouvey-Sheats symplectic jeu de taquin. Motivated by Willis' direct way of computing type $A$ right and left keys, we also give a way of computing symplectic, right and left, keys without the use of symplectic jeu de taquin., Reference correction. arXiv admin note: substantial text overlap with arXiv:2104.15000

In this paper we dwell over the study of the boundary layer problem in a hydrodynamical description of the electrons in gated graphene. It has been verified experimentally that this fluid can display non-Poiseuille like flow as reproduced in our numerical simulation. In fact, the velocity profile displays a maximum value close to the boundary and then decreases as it approaches the bulk of the graphene layer. This work aims to present a satisfactory theoretical description of the boundary layer problem in graphene. We found that by using the fluid equations and following a method similar to that for deriving Blasius' equation, a non-linear model can be obtained whose solutions display the maximum values of velocity near the edges of the graphene layer. We argue that such a non-monotonic model and behaviour can shed some light on the subject of non-topological edge currents in graphene.

This article discusses teaching practice in the COVID-19 pandemic period as an act, in its unique and unpredictable constitution during social distance and remote classes. For this, a testimonies of a teacher and a testimonies of a student are analyzed, texts that marked social media. Based on the Bakhtinian principles (2017) of the unrepeatable singularity of each subject and each act, and of the responsibility for the act, this reflection points to the fact that the center of pedagogical practices is the interactional relationship between students and teachers, subjects responsible for their ethical acts, in presential lessons or remote class., Este artigo aborda o fazer docente no período de pandemia da COVID-19 como ato, em sua constituição única e imprevisível durante o distanciamento social e as aulas remotas. Para tanto, analisam-se os depoimentos de um professor e de um estudante, dizeres que marcaram as mídias sociais. Com base nos princípios bakhtinianos (2017) da singularidade irrepetível de cada sujeito e de cada ato, e da responsabilidade pelo ato, esta reflexão aponta para o fato de que o centro das práticas pedagógicas é a relação interacional entre alunos e professores, sujeitos responsáveis por seus atos éticos, em aulas presenciais ou remotas.

Additional file 3: Supplementary Figure 2. Schoenfeld residues for the variables in the final Cox model - Healthcare delay. A - Sex, B - Age group, C - Alcohol abuse, D - Oncologic diseases, E - Respiratory diseases, F - Community residence, G - Unemployment.

Additional file 2: Supplementary Figure 1. Schoenfeld residues for the variables in the final Cox model - Patient delay. A - Country of origin, B - Age group, C - Health professional, D - Chronic renal failure, E - Alcohol abuse, F - HIV infection, G - Unemployment.

Additional file 4: Supplementary Figure 3. Schoenfeld residues for the variables in the final Cox model - Total delay. A - Sex, B - Age group, C - Health professional, D - HIV infection, E - Country of origin, F - Community residence.

Given a Riemannian manifold $M,$ and an open interval $I\subset\mathbb{R},$ we characterize nontrivial totally umbilical hypersurfaces of the product $M\times I$ -- as well as of warped products $I\times_��M$ -- as those which are local graphs built on isoparametric families of totally umbilical hypersurfaces of $M.$ By means of this characterization, we fully extend to $\mathbb{S}^n\times\mathbb{R}$ and $\mathbb{H}^n\times\mathbb{R}$ the results by Souam and Toubiana on the classification of totally umbilical hypersurfaces of $\mathbb{S}^2\times\mathbb{R}$ and $\mathbb{H}^2\times\mathbb{R}.$ It is also shown that an analogous classification holds for arbitrary warped products $I\times_��\mathbb{S}^n$ and $I\times_��\mathbb{H}^n.$

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2020-11-09T20:04:21Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) joao_paulo_santos.pdf: 8311307 bytes, checksum: 9387fb5d348c4866bf4120fa8209979a (MD5) Approved for entry into archive by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2020-11-09T20:05:24Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) joao_paulo_santos.pdf: 8311307 bytes, checksum: 9387fb5d348c4866bf4120fa8209979a (MD5) Made available in DSpace on 2020-11-09T20:05:24Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) joao_paulo_santos.pdf: 8311307 bytes, checksum: 9387fb5d348c4866bf4120fa8209979a (MD5) Previous issue date: 2020 A SRE Diamantina fornece direcionamento aos gestores escolares e atende aos ?rg?os superiores, aos quais est? subordinada para o bem-estar educacional. A pesquisa delimitou o estudo na atua??o dos gestores respons?veis pelo ambiente interno com sua cultura e clima organizacional, bem como rela??es sociais de trabalho. O desafio da pesquisa foi encontrar respostas para as maiores dificuldades enfrentadas pelos gestores nas rela??es interpessoais, os fatores do ambiente interno que causam insatisfa??o nos servidores e como resolver o problema de clima organizacional. Para responder a esses questionamentos, definiu-se como objetivo geral identificar, por meio de uma pesquisa de opini?o p?blica, a percep??o dos servidores da SRE Diamantina no que diz respeito a influ?ncia dos gestores em sua satisfa??o no trabalho, utilizando, para isso, as ferramentas e t?cnicas do GUIA PMBOK? para mapear o ambiente interno. Na sequ?ncia, foi necess?rio mapear, por meio da pesquisa de opini?o p?blica, o ambiente interno da SRE Diamantina adotando como crit?rio as 10 ?reas do conhecimento em gerenciamento de projetos do Guia PMBOK?, de forma a descrever os fatores de satisfa??o e de insatisfa??o diagnosticados no mapeamento e analisados por meio da t?cnica estat?stica multivariada, bem como identificando similaridades para sugerir a implanta??o de um projeto de forma??o continuada para os gestores, tamb?m utilizando as ferramentas e t?cnicas do Guia PMBOK?, nas tr?s ?reas do conhecimento identificadas como as mais deficit?rias no mapeamento. A pesquisa tem natureza aplicada e car?ter descritivo, m?todo de abordagem qualitativa, para tanto utilizou como procedimento o levantamento do tipo Survey, e o question?rio online foi respondido por 34 servidores. A interpreta??o dos dados foi realizada por meio de agrupamentos ou Clusters com o suporte dos softwares Microsoft Excel, Past 326b e do Venngage. De acordo com muitos servidores, os gestores t?m dificuldades de repassar conhecimentos, ensinar e aperfei?oar t?cnicas (67,64%), problemas de criatividade e iniciativa para gerar confian?a na conviv?ncia di?ria (52,95%) e de divis?o do trabalho (82,35%). Muitos servidores est?o insatisfeitos com a falta de autonomia para trabalhar (55,88%). Os fatores que geram satisfa??o aos servidores s?o: gostar do que fazem, integra??o da equipe, autonomia, serem valorizados e ouvidos. Em contrapartida, falta de capacita??o e treinamentos, de plano de carreira, de comunica??o, de n?o serem valorizados em determinados momentos e a n?o participa??o nas decis?es geram insatisfa??o. As tr?s ?reas do conhecimento mais deficit?rias est?o relacionadas ? comunica??o, aos recursos e ? integra??o. Foi poss?vel concluir que existe uma discrep?ncia entre a percep??o dos servidores da diretoria de pessoal em rela??o aos demais setores da SRE Diamantina e que o gerenciamento das comunica??es ? a maior causa de insatisfa??o no ambiente de trabalho da institui??o. Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o em Educa??o, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2020. The Regional Teaching Superintendence (RTS) in Diamantina provides guidance for school administrators and serves the higher public authorities, in order to maintain educational wellbeing. The research delimited the studied to school administrators? performance who were responsible for an internal environment with their culture and organizational climate, as well as social work relationships. The research challenge was to find answers to the greatest difficulties faced by administrators in interpersonal relationships, and other internal environment factors that cause public servants? dissatisfaction and how to solve the organizational climate problem. In order to answer these questions, it was defined as a general objective to identify, through a public opinion survey, the perception of Diamantina RTS? employees regarding the influence of administrators on their job satisfaction, using the PMBOK? GUIDE tools and techniques to map the internal environment. Then, it was necessary to map, through public opinion research, the internal environment of Diamantina RTS, adopting the 10 knowledge areas in project management of the PMBOK? Guide as criteria. The criteria was selected in order to describe the satisfaction and dissatisfaction factors diagnosed in the mapping. In addition, it was analyzed using the multivariate statistical technique, and similarities were identified to suggest the implementation of a continuing education project for school managers, also using the PMBOK? Guide tools and techniques, in the three knowledge areas identified as the most deficient in the mapping phase. The research has an applied nature and a descriptive character, and also a qualitative approach method. For this, a survey was used as a data collector procedure, and the online questionnaire was answered by 34 public servants. Data interpretation was performed using clusters with the support of Microsoft Excel, Past 326b and Venngage softwares. According to many public employees, administrators have difficulties in passing on knowledge, teaching and improving techniques (67.64%), creativity and initiative problems in order to create confidence in daily living (52.95%) and division of labor (82,35%). Many of them are dissatisfied with the lack of work autonomy (55.88%). The factors that generate satisfaction to the employees are: like what they do, team integration, autonomy, being valued and listened to. On the other hand, the lack of improvement, training, career plans and communication but also not being valued at certain times and not being part of the decision makers generate dissatisfaction. The three most deficient knowledge areas are related to communication, resources and integration. It was possible to conclude that there is a perception discrepancy between the public servants of the personal board in relation to the other sectors of Diamantina RTS. Furthermore, communication management is the biggest cause of work dissatisfaction in the institution environment.

Deligne's celebrated "Riemann--Hilbert correspondence" relates representations of the fundamental group of a smooth complex algebraic variety and regular-singular integrable connections. In this work, we show how to arrive at a similar statement in the case of a smooth scheme $X$ over the spectrum of a ring $R=\mathbb C[[t_1,\ldots, t_r]]/I$. On one side of the correspondence we have representations on $R$-modules of the fundamental group of the special fibre, and on the other we have certain integrable $R$-connections admitting logarithmic models. The correspondence is then applied to give explicit examples of differential Galois groups of $\mathbb C[[t]]$--connections., 31 pages, final version, to appear in The Annali della Scuola Normale Superiore di Pisa

In this article we classify the conformally flat Euclidean hypersurfaces of dimension three with three distinct principal curvatures of $\mathbb{R}^4$, $\mathbb{S}^3\times \mathbb{R}$ and $\mathbb{H}^3\times \mathbb{R}$ with the property that the tangent component of the vector field $\partial/\partial t$ is a principal direction at any point. Here $\partial/\partial t$ stands for either a constant unit vector field in $\mathbb{R}^4$ or the unit vector field tangent to the factor $\mathbb{R}$ in the product spaces $\mathbb{S}^3\times \mathbb{R}$ and $\mathbb{H}^3\times \mathbb{R}$, respectively. Then we use this result to give a simple proof of an alternative classification of the cyclic conformally flat hypersurfaces of $\mathbb{R}^4$, that is, the conformally flat hypersurfaces of $\mathbb{R}^4$ with three distinct principal curvatures such that the curvature lines correspondent to one of its principal curvatures are extrinsic circles. We also characterize the cyclic conformally flat hypersurfaces of $\mathbb{R}^4$ as those conformally flat hypersurfaces of dimension three with three distinct principal curvatures for which there exists a conformal Killing vector field of $\mathbb{R}^4$ whose tangent component is an eigenvector field correspondent to one of its principal curvatures.

Submitted by Jo??o Santos (joaobatistauea2012@gmail.com) on 2018-11-30T21:01:29Z No. of bitstreams: 4 Disserta????o Jo??o Marques Batista dos Santos.pdf: 543401 bytes, checksum: 4541b8b09d0d4039139f35aa8985aadb (MD5) Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Approved for entry into archive by PPGM Matem??tica (ppgmufam@gmail.com) on 2018-12-03T13:17:15Z (GMT) No. of bitstreams: 4 Disserta????o Jo??o Marques Batista dos Santos.pdf: 543401 bytes, checksum: 4541b8b09d0d4039139f35aa8985aadb (MD5) Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Rejected by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br), reason: A Disserta????o depositada est?? sem a Ficha Catalogr??fica. Um novo documento deve ser depositado com Ficha Catalogr??fica. Segue link... http://biblioteca.ufam.edu.br/servicos/elaboracao-de-ficha-catalografica D??vidas? ddbc@ufam.edu.br on 2018-12-03T17:34:38Z (GMT) Rejected by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br), reason: A Disserta????o depositada est?? sem a Ficha Catalogr??fica. Um novo documento deve ser depositado com Ficha Catalogr??fica. Segue link... http://biblioteca.ufam.edu.br/servicos/elaboracao-de-ficha-catalografica D??vidas? ddbc@ufam.edu.br on 2018-12-03T17:35:26Z (GMT) Rejected by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br), reason: A Disserta????o depositada est?? sem a Ficha Catalogr??fica. Um novo documento deve ser depositado com Ficha Catalogr??fica. Segue link... http://biblioteca.ufam.edu.br/servicos/elaboracao-de-ficha-catalografica D??vidas? ddbc@ufam.edu.br on 2018-12-03T17:33:31Z (GMT) Submitted by Jo??o Santos (joaobatistauea2012@gmail.com) on 2018-12-20T17:11:49Z No. of bitstreams: 4 Disserta????o Jo??o Marques Batista dos Santos.pdf: 543401 bytes, checksum: 4541b8b09d0d4039139f35aa8985aadb (MD5) Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Approved for entry into archive by PPGM Matem??tica (ppgmufam@gmail.com) on 2018-12-20T17:25:10Z (GMT) No. of bitstreams: 4 Disserta????o Jo??o Marques Batista dos Santos.pdf: 543401 bytes, checksum: 4541b8b09d0d4039139f35aa8985aadb (MD5) Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Rejected by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br), reason: A disserta????o depositada est?? sem a Ficha Catalogr??fica. A ficha pode ser feita em http://biblioteca.ufam.edu.br/servicos/elaboracao-de-ficha-catalografica d??vidas? ddbc@ufam.edu.br on 2018-12-20T17:58:16Z (GMT) Submitted by Jo??o Santos (joaobatistauea2012@gmail.com) on 2018-12-20T18:40:19Z No. of bitstreams: 4 Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Disserta????o Jo??o Marques Batista dos Santos.pdf: 992792 bytes, checksum: 964ec1d5465551c0aa8e0ca6f0995ec4 (MD5) Approved for entry into archive by PPGM Matem??tica (ppgmufam@gmail.com) on 2018-12-20T18:43:51Z (GMT) No. of bitstreams: 4 Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Disserta????o Jo??o Marques Batista dos Santos.pdf: 992792 bytes, checksum: 964ec1d5465551c0aa8e0ca6f0995ec4 (MD5) Approved for entry into archive by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br) on 2018-12-20T19:05:09Z (GMT) No. of bitstreams: 4 Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Disserta????o Jo??o Marques Batista dos Santos.pdf: 992792 bytes, checksum: 964ec1d5465551c0aa8e0ca6f0995ec4 (MD5) Made available in DSpace on 2018-12-20T19:05:09Z (GMT). No. of bitstreams: 4 Ata de Defesa - Jo??o Batista (1).pdf: 866752 bytes, checksum: 321c54d256c356c0d52095cf06dcbe2c (MD5) Folha de Aprova????o - Jo??o Batista.pdf: 446744 bytes, checksum: f0cfa5935e042cea772148a21b280c58 (MD5) Carta de encaminhamento - Jo??o Batista.pdf: 318150 bytes, checksum: a3df23929f8484ee602220dfef1e9d90 (MD5) Disserta????o Jo??o Marques Batista dos Santos.pdf: 992792 bytes, checksum: 964ec1d5465551c0aa8e0ca6f0995ec4 (MD5) Previous issue date: 2018-08-17 CAPES - Coordena????o de Aperfei??oamento de Pessoal de N??vel Superior 92994746870 In this dissertation, we studied the complete classification of totally umbilical surfaces immersed in homogeneous 3-manifolds, as obtained in the article entitled "The classification of totally umbilical surfaces in homogeneous 3-manifolds" by Manzano and Soaum [Math. Z. 279 (2015) 557-576]. In the case of unimodular Lie groups it was shown that, except for the Euclidean space R3, unit sphere S3, soluble group Sol3 and the totally geodesics examples that appear in some special cases given by Tsukada [Kodai Math. J. 19 (3) (1996) 395-437], there are no fully umbilical surfaces. Moreover, there were obtained herein extensions of some results of Inoguchi and Van der Veken [Geom. Dedicata. 131 (2008) 159-172], Souam and Toubiana [Math. Helv. 84 (3) (2009) 673-704] and Tsukada [Kodai Math. J. 19 (3) (1996) 395-437], giving alternative proves for each case. In the case of non-unimodular Lie groups, the totally umbilical surfaces exist when the Lie group is isometric to the hyperbolic space H3 and to the product space H2 x R. Futhermore, in some special cases of non-unimodular Lie groups it was shown, up to ambient isometries, the existence of complete totally geodesics surfaces and complete totally umbilical one which are not totally geodesics. Nesta disserta????o, estudamos a classifica????o completa das superf??cies totalmente umb??licas imersas em variedades homog??neas tridimensionais, obtida no artigo intitulado "The classification of totally umbilical surfaces in homogeneous 3-manifolds" por Manzano e Souam [Math. Z. 279 (2015) 557-576]. Nos grupos de Lie unimodulares foi mostrado que, exceto para o espa??o Euclidiano R3, a esfera unit??ria S3, o grupo sol??vel Sol3 e os exemplos totalmente geod??sicos que aparecem em alguns casos especiais dados por Tsukada [Kodai Math. J. 19 (3) (1996) 395-437], n??o existem superf??cies totalmente umb??licas. Al??m disso, foi obtido extens??es de alguns resultados de Inoguchi e Van der Veken [Geom. Dedicata. 131 (2008) 159-172], Souam e Toubiana [Math. Helv. 84 (3) (2009) 673-704] e Tsukada [Kodai Math. J. 19 (3) (1996) 395-437], dando provas alternativas para cada caso. Nos grupos de Lie n??o-unimodulares, as superf??cies totalmente umb??licas existem nos casos em que o grupo de Lie ?? isom??trico ao espa??o hiperb??lico H3 e ao espa??o produto H2(k)xR. Al??m disso, em alguns casos especiais de grupos de Lie n??o-unimodulares foi mostrado, a menos de uma isometria do espa??o ambiente, a exist??ncia de superf??cies completas totalmente geod??sicas e superf??cies completas totalmente umb??licas que n??o s??o totalmente geod??sicas.

We present a catalog of star clusters, associations and related extended objects in the Small Magellanic Cloud and the Magellanic Bridge with 2741 entries, a factor 2 more than a previous version from a decade ago. Literature data till December 2018 are included. The identification of star clusters was carried out with digital atlases in various bands currently available in DSS and MAMA imaging surveys. In particular, we cross-identified recent cluster samples from the VMC, OGLE-IV and SMASH surveys, confirming new clusters and pointing out equivalencies. A major contribution of the present catalog consists in the accurate central positions for clusters and small associations, including a new sample of 45 clusters or candidates in the SMC and 19 in the Bridge, as well as a compilation of the most reliable age and metallicity values from the literature. A general catalog must also deal with the recent discoveries of 27 faint and ultra-faint star clusters and galaxies projected on the far surroundings of the Clouds, most of them from the DES survey. The information on these objects has been complemented with photometric, spectroscopic and kinematical follow-up data from the literature. The underluminous galaxies around the Magellanic System, still very few as compared to the predictions from $\Lambda$ Cold Dark Matter simulations, can bring constraints to galaxy formation and hierarchical evolution. Furthermore, we provide diagnostics, when possible, of the nature of the ultra-faint clusters, searching for borders of the Magellanic System extensions into the Milky Way gravitational potential., Comment: 21 pages, 13 figures and 4 tables. Updated to match accepted version in AJ. The updated catalog is provided in full as ancillary file

We consider gradient Ricci solitons conformal to a $n$-dimensional pseudo-Euclidean space and we completely describe the most general ansatz that reduces the resulting system of partial differential equations to a system of ordinary differential equations. As a consequence, the gradient Ricci solitons that arise from the reduced system are invariant under the action of either an $(n-1)$-dimensional translation group or the pseudo-orthogonal group acting on the corresponding $n$-dimensional pseudo-Euclidean space.

In the 1st part of this work [DHdS18], we studied affine group schemes over a discrete valuation ring (DVR) by means of Neron blowups. We also showed how to apply these findings to throw light on the group schemes coming from Tannakian categories of D-modules. In the present work, we follow up this theme. We show that a certain class of affine group schemes of "infinite type", Neron blowups of formal subgroups, are quite typical. We also explain how these group schemes appear naturally in Tannakian categories of D-modules. To conclude, we isolate a Tannakian property of affine group schemes, named prudence, which allows one to verify if the underlying ring of functions is a free module over the base ring. This is then successfully applied to obtain a general result on the structure of differential Galois groups over complete DVRs., 32 pages, final version, to appear in Int. Math. Res. Notices

Given a quotient vector bundle $\mathcal A$ over $X$ with kernel map $��: X\to\mathrm{Max}\,A$ we study the codual bundle with fiber at each point $x\in X$ isomorphic to the dual of $��(x)$. Applying the adjunction between quotient vector bundles and linearized locales to the codual bundle leads to a new adjunction between the category of all quotient vector bundles and a category whose objects are locales $L$ equipped with a contravariant morphism $L\to\mathrm{Max}\, A$.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2021-04-29T15:41:54Z No. of bitstreams: 1 2017 - Jo?o Batista dos Santos.pdf: 2968947 bytes, checksum: d69556c4d96e8f1630a0cf55a7217361 (MD5) Made available in DSpace on 2021-04-29T15:41:54Z (GMT). No. of bitstreams: 1 2017 - Jo?o Batista dos Santos.pdf: 2968947 bytes, checksum: d69556c4d96e8f1630a0cf55a7217361 (MD5) Previous issue date: 2017-12-21 Agroecology and organic production have grown in Brazil, since the 80?s, as alternatives to the rural development model preconized by the green revolution. However, the transition from conventional agriculture to organic agriculture have specifics, which take in count the social, environmental and economic aspects, principally in regions were agricultural activities are performed by family farmers. The case study is about the scenario of organic production in the northwest region of the Rio de Janeiro state, more specifically, the evolution of family farmers who are members of social control organizations (OCS) since the implementation of the PAIS project in 2009 and the support promoted by the Rio Rural Program. By analyzing the existing documentation, observing and participating in the dynamics of construction of agroecological knowledge, and formulating surveys, it was possible to verify the effectiveness of the public policies that operate in the region and to identify the difficulties encountered by organic producers in the region in the process of guaranteeing organic conformity and adequacy with organic legislation. Of the 165 units of PAIS project, implemented since 2009, 98 have converted to organic agriculture in 2014, with the passing of the years and the terminus of the period of technical assistance and project execution, these numbers suffered a fall, in 2017 there were 48 units active in the the National Register of Organic Production - CNPO. The results show the necessity of adjusts (mainly in the continuity of ATER support) and investments in social control activities that facilitate the adequacy of these farmers, avoiding abandonment in the implementation of organic production and stimulating the participation of organized groups in the market channels of direct sale (PAA, PNAE, fairs, baskets) A agroecologia e a produ??o org?nica t?m crescido no Brasil a partir dos anos 80 como alternativas ao modelo de desenvolvimento rural preconizado pela revolu??o verde. Entretanto, o processo de transi??o agroecol?gica saindo da agricultura convencional at? a convers?o para a agricultura org?nica possui especificidades considerando os aspectos sociais, ambientais e econ?micos, principalmente quando estamos em territ?rio onde as atividades no meio rural s?o conduzidas por agricultores familiares e suas fam?lias. O estudo de caso ? sobre a produ??o org?nica na regi?o noroeste do estado do Rio de Janeiro, mais especificamente, a evolu??o porque passaram os agricultores familiares membros de organiza??es de controle social (OCS) desde a implanta??o do projeto PAIS a partir do ano de 2009 e apoio da rede fomentada pelo Programa Rio Rural. Atrav?s da an?lise da documenta??o j? existente, da observa??o e participa??o nas din?micas de constru??o do conhecimento agroecol?gico, da aplica??o de question?rios, foi poss?vel verificar a efic?cia das pol?ticas p?blicas que atuam na regi?o, identificar as dificuldades encontradas pelos produtores org?nicos da regi?o no processo de garantia da conformidade org?nica e adequa??o para com a legisla??o de org?nicos. Das 165 unidades dos projetos PAIS implantados a partir de 2009, 98 converteram para a agricultura org?nica em 2014, com o passar dos anos com o fim do per?odo de assist?ncia t?cnica e execu??o do projeto, esses n?meros sofreram uma grade queda, em 2017 permaneciam 48 unidades ativas no Cadastro Nacional de Produ??o Org?nica - CNPO. Constatou-se a necessidade de ajustes (principalmente na continuidade do apoio de ATER) e investimentos nas atividades de controle social que facilitem a adequa??o destes agricultores, evitando a desist?ncia na implementa??o da produ??o org?nica e estimulando a participa??o dos grupos organizados nos canais de comercializa??o de venda direta (PAA, PNAE, feiras, cestas).

Esta disserta??o apresenta um estudo sobre a ficcionaliza??o e a representa??o da morte nos contos da escritora brasileira Lygia Fagundes Telles. Partindo da ideia de que a perspectiva da finitude sempre amedrontou o ser humano, analisou-se como a morte vai se desdobrando e variando em diferentes contos de diferentes obras da trajet?ria liter?ria de Telles. Assim sendo, a escritora em quest?o escreve e reescreve a morte de diferentes formas em suas narrativas, mostrando diversas faces desta quest?o, buscando, tamb?m, aprofundar a compreens?o deste grande enigma atemporal que persegue o homem desde os prim?rdios at? os dias de hoje. Verificou-se que nos contos estudados, existem dois tipos de abordagens da morte que s?o retratadas: a morte do outro e a morte de si mesmo. Al?m disso, discutiu-se como a frui??o est?tica da literatura pode apaziguar e auxiliar as pessoas na busca por compreens?o e aceita??o da morte. Devido ? complexidade do tema da morte, fez-se necess?rio, no desenrolar da pesquisa, adentrar teorias e conceitos de outras disciplinas, tais como: antropologia, filosofia, hist?ria das mentalidades, psicologia, psican?lise e sociologia. Sobretudo, Lygia Fagundes Telles, ao ficcionalizar a finitude, procura penetrar e aprofundar os mist?rios da exist?ncia humana, convocando seus leitores a embarcarem em narrativas onde morte e vida parecem se amalgamar. This dissertation presents a study about the fictionalization and the representation of death in the short stories of the Brazilian writer Lygia Fagundes Telles. Starting from the idea that the perspective of finitude has always threatened the human beings, it was analyzed how death unfolds and varies in different short stories from different works of Telles? literary trajectory. Therefore, the aforementioned writer writes and rewrites death in different ways in her narratives, showing diverse aspects of this matter, also seeking to deepen the comprehension of the biggest enigma of all times, the one that chases the mankind since the beginnings until nowadays. It was verified that in the studied short stories there are two kinds of approaches to death that are portrayed: the death of the other and the death of oneself. Besides, it was discussed how the aesthetic fruition of literature can pacify and help people in the searching for comprehension and acceptance of death. Due to complexity of death?s matter, it was necessary to get into theories and concepts of other subjects, such as: anthropology, philosophy, history of mentalities, psychology, psychoanalysis and sociology. Mainly, Lygia Fagundes Telles, while fictionalizing the finitude, seeks to immerse and get into the mysteries of human existence, calling her readers to embark on narratives where death and life seem to be amalgamated. Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES

We follow the pattern in a recent paper of Otabe [Ota15] to define an action of the ��tale fundamental group scheme $��^\text{et}(X)$ on the local component of the essentially finite fundamental group scheme $��^{\mathrm{EF}}(X)$ of Nori. We show that the associated representation is faithful when $X$ is a curve of genus $\geq 2$., 12 pages

We apply deep learning methods, specifically long short-term memory (LSTM) networks, to music transcription modelling and composition. We build and train LSTM networks using approximately 23,000 music transcriptions expressed with a high-level vocabulary (ABC notation), and use them to generate new transcriptions. Our practical aim is to create music transcription models useful in particular contexts of music composition. We present results from three perspectives: 1) at the population level, comparing descriptive statistics of the set of training transcriptions and generated transcriptions; 2) at the individual level, examining how a generated transcription reflects the conventions of a music practice in the training transcriptions (Celtic folk); 3) at the application level, using the system for idea generation in music composition. We make our datasets, software and sound examples open and available: \url{https://github.com/IraKorshunova/folk-rnn}., 16 pages, 4 figures, contribution to 1st Conference on Computer Simulation of Musical Creativity

Let $(X ,x_0)$ be a pointed smooth proper variety defined over an algebraically closed field. The Albanese morphism for $(X ,x_0)$ produces a homomorphism from the abelianization of the $F$-divided fundamental group scheme of $X$ to the $F$-divided fundamental group of the Albanese variety of $X$. We prove that this homomorphism is surjective with finite kernel. The kernel is also described., Final version

In this paper, helicoidal flat surfaces in the $3$-dimensional sphere $\mathbb{S}^3$ are considered. A complete classification of such surfaces is given in terms of their first and second fundamental forms and by linear solutions of the corresponding angle function. The classification is obtained by using the Bianchi-Spivak construction for flat surfaces and a representation for constant angle surfaces in $\mathbb{S}^3$., 14 pages, 3 figures

Nowadays, clusters of multicores are becoming the norm and, although, many or-parallel Prolog systems have been developed in the past, to the best of our knowledge, none of them was specially designed to explore the combination of shared and distributed memory architectures. In recent work, we have proposed a novel computational model specially designed for such combination which introduces a layered model with two scheduling levels, one for workers sharing memory resources, which we named a team of workers, and another for teams of workers (not sharing memory resources). In this work, we present a first implementation of such model and for that we revive and extend the YapOr system to exploit or-parallelism between teams of workers. We also propose a new set of built-in predicates that constitute the syntax to interact with an or-parallel engine in our platform. Experimental results show that our implementation is able to increase speedups as we increase the number of workers per team, thus taking advantage of the maximum number of cores in a machine, and to increase speedups as we increase the number of teams, thus taking advantage of adding more computer nodes to a cluster. We thus argue that our platform is an efficient and viable alternative for exploiting implicit or-parallelism in the currently available clusters of low cost multicore architectures., Paper presented at the 32nd International Conference on Logic Programming (ICLP 2016), New York City, USA, 16-21 October 2016, 15 pages

We define a notion of morphism for quotient vector bundles that yields both a category $\textit{QVBun}$ and a contravariant global sections functor $C:\textit{QVBun}^{\textrm{op}}\to\textit{Vect}$ whose restriction to trivial vector bundles with fiber $F$ coincides with the contravariant functor $\textit{Top}^{\textrm{op}}\to\textit{Vect}$ of $F$-valued continuous functions. Based on this we obtain a linear extension of the adjunction between the categories of topological spaces and locales: (i) a linearized topological space is a spectral vector bundle, by which is meant a mildly restricted type of quotient vector bundle; (ii) a linearized locale is a locale $\triangle$ equipped with both a topological vector space $A$ and a $\triangle$-valued support map for the elements of $A$ satisfying a continuity condition relative to the spectrum of $\triangle$ and the lower Vietoris topology on $\operatorname{Sub} A$; (iii) we obtain an adjunction between the full subcategory of spectral vector bundles $\textit{QVBun}_��$ and the category of linearized locales $\textit{LinLoc}$, which restricts to an equivalence of categories between sober spectral vector bundles and spatial linearized locales. The spectral vector bundles are classified by a finer topology on $\operatorname{Sub} A$, called the open support topology, but there is no notion of universal spectral vector bundle for an arbitrary topological vector space $A$., 40 pages. Version 5 differs from 4 only in typesetting style and in the numbering of theorems, lemmas and examples (which now coincides with that of the published version). Version 6 corrects typos in pp. 2 and 20 ("span" was missing in the definition of gamma), and in the proof of Th. 6.16

A ?rea da sa?de possui diversos insumos que exigem cuidados especiais, os quais incluem um correto manuseio em ambiente monitorado e controlado durante todo o processo de produ??o, transporte e armazenagem. Dentre estes insumos podemos destacar os medicamentos sens?veis a varia??es de temperatura, os quais precisam ser mantidos resfriados durante todo esse processo at? serem administrados no paciente. Esses cuidados s?o extremamente importantes para manter a integridade f?sico-qu?mica do medicamento, prevenindo seu descarte desnecess?rio devido deteriora??o ou inativa??o e evitando poss?veis danos ao paciente. Este trabalho prop?e o desenvolvimento de um sistema de monitoramento para a cadeia fria farmac?utica baseada em RFID para ser utilizado durante o transporte e armazenagem dos medicamentos antes da administra??o nos pacientes. O sistema ? composto por leitoras de RFID, tags passivas, tags semi-passivas acopladas com sensores (BAP tags), um banco de dados e um servidor web remoto. Para viabilizar a concep??o do sistema uma BAP tag foi desenvolvida para monitorar as condi??es de temperatura durante o transporte e armazenagem dos produtos, utilizando t?cnicas de ultrabaixo consumo e uma gest?o inteligente de mem?ria. Os resultados demonstram que a BAP tag desenvolvida consome apenas 0,1 ?A no modo Sleep e 3,28 ?A no modo Ativo, tem uma alta sensibilidade de -27 dBm e pode armazenar at? 32,7 k amostras de temperatura em uma mem?ria de 128 kbits. Com este perfil de consumo, a BAP tag pode monitorar continuamente a temperatura por at? 7 anos seguidos sem substitui??o da bateria com um intervalo de amostragem de 5 minutos. Al?m da BAP tag, dois softwares para leitoras de RFID foram desenvolvidos para serem utilizados em conjunto com a BAP tag mencionada, enviando os dados de monitoramento ao servidor remoto. The healthcare has several goods that require special care, which include a correct handling in monitored and controlled environment throughout the production, transport and storage processes. Among these goods we can highlight temperaturesensitive drugs, which need to be kept cold throughout the whole process until be administered to the patient. These precautions are extremely important to maintain the physical and chemical integrity of the medication, preventing unnecessary waste due to its deterioration or inactivation, and avoiding possible damage to the patient. This work proposes the development of a monitoring system for the pharmaceutical cold chain based on RFID to be used during transport and storage of drugs prior to administration in patients. The system consists of RFID readers, passive tags, semi-passive tags coupled with sensors (BAP tags), a database and a remote web server. To colaborate with the system conception, a BAP tag was developed to monitor temperature conditions during transport and storage of products, using ultra-low power techniques and smart memory management. The results demonstrate that the developed BAP tag consumes only 0.1 uA in Sleep mode and 3.28 uA in Active mode, it has a high sensitivity of -27 dBm and it can store up to 32.7 k temperature samples in a 128 kbits memory. With this consumption profile, BAP tag can continuously monitor temperature for up to 7 years without battery replacement with a 5 minute sampling interval. In addition to the BAP tag, two software for RFID readers have been developed for use in conjunction with the mentioned BAP tag, sending the monitoring data to the remote server.

Given an arbitrary topological complex vector space $A$, a quotient vector bundle for $A$ is a quotient of a trivial vector bundle $��_2:A\times X\to X$ by a fiberwise linear continuous open surjection. We show that this notion subsumes that of a Banach bundle over a locally compact Hausdorff space $X$. Hyperspaces consisting of linear subspaces of $A$, topologized with natural topologies that include the lower Vietoris topology and the Fell topology, provide classifying spaces for various classes of quotient vector bundles, in a way that generalizes the classification of locally trivial vector bundles by Grassmannians. If $A$ is normed, a finer hyperspace topology is introduced that classifies bundles with continuous norm, including Banach bundles, and such that bundles of constant finite rank must be locally trivial., Version 2 fixed a problem with the definition of the closed balls topology (section 5). Version 3 mainly fixed typos and improved presentation

Mode-directed tabling is an extension to the tabling technique that supports the definition of mode operators for specifying how answers are inserted into the table space. In this paper, we focus our discussion on the efficient support for mode directed-tabling in the YapTab tabling system. We discuss 7 different mode operators and explain how we have extended and optimized YapTab's table space organization to support them. Initial experimental results show that our implementation compares favorably with the B-Prolog and XSB state-of-the-art Prolog tabling systems., Appeared in CICLOPS 2012. 15 Pages, 12 Figures

We consider conformally flat hypersurfaces in four dimensional space forms with their associated Guichard nets and Lam��'s system of equations. We show that the symmetry group of the Lam��'s system, satisfying Guichard condition, is given by translations and dilations in the independent variables and dilations in the dependents variables. We obtain the solutions which are invariant under the action of the 2-dimensional subgroups of the symmetry group. For the solutions which are invariant under translations, we obtain the corresponding conformally flat hypersurfaces and we describe the corresponding Guichard nets. We show that the coordinate surfaces of the Guichard nets have constant Gaussian curvature, and the sum of the three curvatures is equal to zero. Moreover, the Guichard nets are foliated by flat surfaces with constant mean curvature. We prove that there are solutions of the Lam��'s system, given in terms of Jacobi elliptic functions, which are invariant under translations, that correspond to a new class of conformally flat hypersurfaces.

We study the moduli space $\mathfrak M_k^r(\tilde{\mathbb P}^2_{\!q})$ of rank $r$ holomorphic bundles with trivial determinant and second Chern class $c_2=k$, over the blowup $\tilde{\mathbb P}^2_{\!q}$ of the projective plane at $q$ points, trivialized on a rational curve. We show that, for $k=1,2$, we have a homotopy equivalence between $\mathfrak M_k^r(\tilde{\mathbb P}^2_{\!q})$ and the degree $k$ component of the bar construction $\mathrm{B}\bigl(\mathfrak M^r\mathbb P^2,(\mathfrak M^r\mathbb P^2)^{q},(\mathfrak M^r\tilde{\mathbb P}_{\!1}^2)^{q}\bigr)$. The space $\mathfrak M_k^r(\tilde{\mathbb P}^2_{\!q})$ is isomorphic to the moduli space $\mathfrak M\mathcal I_k^r(X_q)$ of charge $k$ based $SU(r)$ instantons on a connected sum $X_q$ of $q$ copies of $\overline{\mathbb P^2}$ and we show that, for $k=1,2$, we have a homotopy equivalence between $\mathfrak M\mathcal I_k^r(X_q\# X_s)$ and the degree $k$ component of $\mathrm{B}\bigl(\mathfrak M\mathcal I^r(X_q),\mathfrak M\mathcal I^r(S^4),\mathfrak M\mathcal I^r(X_s)\bigr)$. Analogous results hold in the limit when $k\to\infty$. As an application we obtain upper bounds for the cokernel of the Atiyah-Jones map in homology, in the rank-stable limit., Final version