cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Over-critical sharp-gradient plasma slab produced by the collision of laser-induced blast-waves in a gas jet; Application to high-energy proton acceleration
Creators: name: Marquès, J. -R.
name: Loiseau, P.
name: Bonvalet, J.
name: Tarisien, M.
name: d'Humières, E.
name: Domange, J.
name: Hannachi, F.
name: Lancia, L.
name: Larroche, O.
name: Puyuelo-Valdes, P. Nicolaï P.
name: Romagnani, L.
name: Santos, J.
name: Tikhonchuk, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The generation of thin and high density plasma slabs at high repetition rate is a key issue for ultra-high intensity laser applications. We present a scheme to create such plasma slabs, based on the propagation and collision in a gas jet of two counter-propagating blast waves (BW). Each BW is launched by a sudden and local heating induced by a nanosecond laser beam that propagates along the side of the jet. The resulting cylindrical BW expands perpendicular to the beam. The shock front, bent by the gas jet density gradient, pushes and compresses the plasma toward the jet center. By using two parallel ns laser beams, this scheme enables to tailor independently two opposite sides of the jet, while avoiding the damage risks associated with counterpropagating laser beams. A parametric study is performed using two and three dimensional hydrodynamic, as well as kinetic simulations. The BWs bending combined with the collision in a stagnation regime increases the density by more than 10 times and generates a very thin (down to few microns), near to over-critical plasma slab with a high density contrast (> 100), and a lifetime of a few hundred picoseconds. Two dimensional particle-in-cell simulations are used to study the influence of plasma tailoring on proton acceleration by a high-intensity sub-picosecond laser pulse. Tailoring the plasma not only at the entrance but also the exit side of the ps-pulse enhances the proton beam collimation, increases significantly the number of high energy protons, as well as their maximum energy.
Há Aprendizagem que não seja Ativa?!
Creators: name: Franco, Amanda
name: Figueiredo, Maria
Publisher: name: Interacções
Year: 2021

description: O presente artigo emerge do projeto educacional EQuIPES – Estudo de Qualidade e Inovação Pedagógica no Ensino Superior, sediado no Instituto Politécnico de Viseu, cujo objetivo principal é caracterizar e contribuir para a qualidade das práticas pedagógicas da comunidade docente desta Instituição do Ensino Superior, com especial enfoque na Aprendizagem Ativa. A Aprendizagem Ativa tem sido amplamente proclamada nos discursos relativos ao Ensino Superior, a nível nacional e internacional. Subsistem, contudo, questões conceptuais e de definição, assim como questões práticas, que se revelam pertinentes. Face à sua preconizada importância no âmbito do Ensino Superior, e centralidade para o projeto EQuIPES, propomo-nos a realizar o seguinte, no presente artigo: (i) explorar a relevância da implementação de metodologias e/ou estratégias de Aprendizagem Ativa no Ensino Superior; (ii) identificar e descrever metodologias e estratégias de Aprendizagem Ativa implementadas no Ensino Superior; (iii) analisar o(s) conceito(s) de Aprendizagem Ativa e discernir as suas dimensões-chave; e (iv) avançar com considerações sobre questões em aberto e pontos críticos nesta área, referentes, nomeadamente, a linhas de investigação que poderiam contribuir para o esclarecimento de quem investiga a Aprendizagem Ativa e/ou implementa práticas de Aprendizagem Ativa e, também, a estratégias de apoio à disseminação das práticas orientadas para a Aprendizagem Ativa no Ensino Superior. Estes propósitos orientaram uma revisão de estudos publicados sobre Aprendizagem Ativa no Ensino Superior que sustenta o presente artigo. Neste âmbito, partindo da premissa de que a Aprendizagem Ativa é aliada da qualidade pedagógica no Ensino Superior, poderá ser crucial acompanhar as/os docentes, por um lado, na reflexão sobre as suas práticas pedagógicas e, por outro lado, na apropriação de metodologias e/ou estratégias de Aprendizagem Ativa, nomeadamente em projetos associados aos modos de ser docente e de praticar o ser docente no Ensino Superior.
description: Interacções, Vol. 17 N.º 58 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Educação Superior, Outros Projetos e Formação de Profissionais da Educação
"Can't be nailed twice": avoiding double taxation by Canada and Taiwan
Creators: name: Lee, Emily Hsiang-Hui
Publisher: name: University of British Columbia
Year: 2009

description: Canada and Taiwan have not entered into a tax treaty. Consequently, because each jurisdiction uses different connecting factors, that is 'residence' in Canada and 'income source' in Taiwan, double taxation may occur for individuals subject to tax in both jurisdictions. With the increasing number of Taiwanese immigrants to and investors in Canada, double taxation is becoming a significant problem. A treaty is probably the most efficient mechanism to resolve the double taxation problem. However, the political issue is how can a nation (Canada) enter into a treaty with a jurisdiction (Taiwan) that it does not recognize as a nation state? Despite facing the same problem, on May 29, 1996 Australia signed a tax agreement with Taiwan concerning the avoidance of double taxation and the prevention of tax evasion. The Australia-Taiwan Tax Agreement is unique because it was signed by two private sector organizations rather than by the respective governments. Using the same mechanism, New Zealand and Vietnam have signed tax agreements with Taiwan as well. This thesis analyses the likelihood of Canada entering into a tax treaty with Taiwan. In so doing, it considers how double taxation arises, reviews the foreign reporting rules and argues that a tax treaty between Canada and Taiwan is desirable. The conclusion is that, theoretically and pragmatically, a tax treaty (or agreement) between Canada and Taiwan is possible and needed in order to relieve punitive double taxation and to facilitate bilateral economic and trading relations between the two jurisdictions.
Experiências Educativas em Tempos de Pandemia
Creators: name: De Oliveira, Tatiane
name: Zucchetti, Dinora Tereza
name: Marconatto Marques, Pâmela
Publisher: name: Interacções
Year: 2021

description: Este artigo apresenta as experiências educativas advindas da interface entre as Políticas de Assistência Social e Educação, com objetivo de mitigar os impactos da pandemia de COVID-19 na educação de crianças e adolescentes das camadas populares. Teve como questão problematizadora as desigualdades no acesso as aulas remotas. O texto está organizado em três seções. A primeira que discute os principais entraves do ensino remoto na vida de crianças e adolescentes em situação de pobreza. A segunda aponta dados quantitativos que comprovam as desigualdades educacionais, e experiências empíricas que dão vida aos números. Por fim, a terceira apresenta as estratégias utilizadas para garantir o acesso à educação àqueles estudantes que não dispõem de acesso à internet, equipamentos adequados, ou suporte para a realização das tarefas escolares. Como percurso metodológico utilizamos as orientações de Holliday (2006, 2018) sobre sistematização de experiências. As conclusões apontam para ineficiência das políticas públicas brasileiras no que se refere à proteção e garantia dos direitos a educação. O detalhamento da experiência destacou a potência do trabalho interstorial, que somente foi possível pela mobilização das famílias e estudantes na luta por seus direitos.
description: Interacções, Vol. 17 N.º 57 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Ambiente Educacional da Escola na Educação Básica
Additional file 2 of Examining the news media reaction to a national sugary beverage tax in South Africa: a quantitative content analysis
Creators: name: Essman, Michael
name: Stoltze, Fernanda Mediano
name: Carpentier, Francesca Dillman
name: Swart, Elizabeth C.
name: Taillie, Lindsey Smith
Publisher: name: figshare
Year: 2021
Subjects: subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2: Table S2. Codebook definitions including major categories of health, hconomics, and proposed solutions followed by definitions of sources.
Secondary Structures in Long Compact Polymers
Creators: name: Oberdorf, Richard
name: Ferguson, Allison
name: Jacobsen, Jesper L.
name: Kondev, Jane'
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Compact polymers are self-avoiding random walks which visit every site on a lattice. This polymer model is used widely for studying statistical problems inspired by protein folding. One difficulty with using compact polymers to perform numerical calculations is generating a sufficiently large number of randomly sampled configurations. We present a Monte-Carlo algorithm which uniformly samples compact polymer configurations in an efficient manner allowing investigations of chains much longer than previously studied. Chain configurations generated by the algorithm are used to compute statistics of secondary structures in compact polymers. We determine the fraction of monomers participating in secondary structures, and show that it is self averaging in the long chain limit and strictly less than one. Comparison with results for lattice models of open polymer chains shows that compact chains are significantly more likely to form secondary structure.
description: 14 pages, 14 figures
Flare X-ray observations of AB Dor: evidence for Stellar Coronal Opacity
Creators: name: Matranga, M.
name: Mathioudakis, M.
name: Kay, H. R. M.
name: Keenan, F. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: X-ray spectra of the late-type star AB Dor, obtained with the XMM-Newton satellite are analysed. AB Dor was particularly active during the observations. An emission measure reconstruction technique is employed to analyse flare and quiescent spectra, with emphasis on the Fe XVII 15-17 A wavelength region. The Fe XVII 16.78 A/15.01 A line ratio increases significantly in the hotter flare plasma. This change in the ratio is opposite to the theoretical predictions and is attributed to the scattering of 15.01 A line photons from the line-of-sight. The escape probability technique indicates an optical depth of about 0.4 for the 15.01 A line. During the flare, the electron density is 4.4*10^10 cm^-3 and the fractional Fe abundance is 0.5 +/- 0.1 of the solar photospheric value. Using these parameters a path length of about 8,000 km is derived. There is no evidence for opacity in the quiescent X-ray spectrum of the star.
description: 13 pages, 3 figures, to be published in ApJ Letters
Observation of an accidental bound state in the continuum in a chain of dielectric disks
Creators: name: Sidorenko, M. S.
name: Sergaeva, O. N.
name: Sadrieva, Z. F.
name: Roques-Carmes, C.
name: Muraev, P. S.
name: Maksimov, D. N.
name: Bogdanov, A. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Being a general wave phenomenon, bound states in the continuum (BICs) appear in acoustic, hydrodynamic, and photonic systems of various dimensionalities. Here, we report the first experimental observation of an accidental electromagnetic BIC in a one-dimensional periodic chain of coaxial ceramic disks. We show that the accidental BIC manifests itself as a narrow peak in the transmission spectra of the chain placed between two loop antennas. We demonstrate a linear growth of the radiative quality factor of the BICs with the number of disks that is well-described with a tight-binding model. We estimate the number of the disks when the radiation losses become negligible in comparison to material absorption and, therefore, the chain can be considered practically as infinite. The presented analysis is supported by near-field measurements of the BIC profile. The obtained results provide useful guidelines for practical implementations of structures with BICs opening new horizons for the development of radio-frequency and optical metadevices.
description: 9 pages, 6 figures
Laboratório de Ensino de Matemática
Creators: name: Oliveira, Renata Rodrigues De
name: Pereira De Sousa, Luciana
Publisher: name: Interacções
Year: 2021

description: Este artigo discute as relações que constituem o processo de ensino-aprendizagem no projeto pedagógico do Laboratório de Ensino de Matemática (LEM), considerando demandas atuais que reverberam na Atividade do professor. O principal objetivo foi reconhecer as mudanças que ocorrem na Atividade dos professores de matemática e as aprendizagens que decorrem delas em um contexto específico de trabalho. A pesquisa tem caráter qualitativo, o material empírico foi composto por transcrições das entrevistas com os professores participantes. As análises foram realizadas na perspectiva da aprendizagem expansiva sob a lente teórica da Teoria Histórico-Cultural da Atividade. Essa lente nos possibilitou olhar para a Atividade dos professores direcionada as aulas no LEM motivadas pelas expectativas dos estudantes por aulas diferenciadas, bem como pelas demandas de trabalho do contexto escolar. Os resultados revelam os movimentos de aprendizagem dos professores ao enfrentarem tensões geradas pela necessidade de criar aulas diversificadas, diferentes da sala de aula tradicional. Ao defrontar essas tensões os professores questionam suas próprias práticas e criam alternativas de ensino que conduzem suas decisões acerca da escolha de maneiras de abordar os conteúdos matemáticos. Diferentes mudanças na Atividade são vivenciadas pelos professores. Eles demonstraram que podem mudar o modo como organizam suas aulas, a maneira como ensinam os estudantes e reafirmam a necessidade de um planejamento intencional utilizando os diferentes recursos que o LEM disponibiliza. Os professores, também revelam reflexões críticas e engajamento individual no andamento da Atividade, o que consideramos como movimentos de aprendizagens expansivas.
description: Interacções, Vol. 17 N.º 57 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Ambiente Educacional da Escola na Educação Básica
Geometry of AdS-Melvin Spacetimes
Creators: name: Kastor, David
name: Traschen, Jennie
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study asymptotically AdS generalizations of Melvin spacetimes, describing gravitationally bound tubes of magnetic flux. We find that narrow fluxtubes, carrying strong magnetic fields but little total flux, are approximately unchanged from the $Λ=0$ case at scales smaller than the AdS scale. However, fluxtubes with weak fields, which for $Λ=0$ can grow arbitrarily large in radius and carry unbounded magnetic flux, are limited in radius by the AdS scale and like the narrow fluxtubes carry only small total flux. As a consequence, there is a maximum magnetic flux $Φ_{max} = 2π/\sqrt{-Λ}$ that can be carried by static fluxtubes in AdS. For flux $Φ_{tot}
description: 15 pages
Additional file 1 of Prehospital measurement and treatment of ionised hypocalcaemia by UK helicopter emergency medical services in trauma patients: a survey of current practice
Creators: name: Hibberd, O.
name: Leech, C.
name: Lang, N.
name: Price, J.
name: Barnard, EBG.
Publisher: name: figshare
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1: Supplementary Table 1: Survey template for assessing UK HEMS measurement and supplementation of calcium in trauma.Supplementary Figure 1: Opinions on the definitions of ionised hypocalcaemia from respondents from UK helicopter emergency medicine services (n = 15).
Landau-Ginzburg method applied to finite fermion systems: Pairing in Nuclei
Creators: name: Kruse, M. K. G.
name: Miller, H. G.
name: Plastino, A. R.
name: Plastino, A.
name: Fujita, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Given the spectrum of a Hamiltonian, a methodology is developed which employs the Landau-Ginsburg method for characterizing phase transitions in infinite systems to identify phase transition remnants in finite fermion systems. As a first application of our appproach we discuss pairing in finite nuclei.
description: 14 pages, 4 figures
Gestos de Presença e Envolvimento
Creators: name: De Oliveira Barbosa, Gardenia Maria
name: Pereira Scherre, Paula
Publisher: name: Interacções
Year: 2021

description: Neste relato de experiência, explicitamos as fundamentações teóricas e apresentamos a prática, o contexto e as repercussões da metodologia de estudo, diálogo e reflexão do Grupo de Estudos Transdisciplinares institucionalizado na Universidade Estadual do Ceará. Na fundamentação teórica, explicitamos sua vinculação: com a perspectiva de ser humano e de realidade da Complexidade e da Transdisciplinaridade; com a presença e a escuta da meditação e da Comunicação Não Violenta; com a reflexão ampliada e o diálogo amoroso do método integrativo biocêntrico e da educação dialógica; com o processo de formação do ser e de transformação de si e do mundo; com a integração da inteligência com afetividade e da razão com emoção. A proposta metodológica se constitui de meditação inicial, de leitura em voz alta e lenta, com o desfrute do prazer de estarmos juntos(as), do diálogo, das reflexões, das partilhas de experiências, da associação livre de ideias de todos(as) presentes. Como repercussões em duas estudantes assíduas, percebemos a fluência na leitura, a estruturação de suas argumentações e exposição de seus pensamentos e reflexões, diminuição da timidez com mais confiança em sua própria fala e ampliação da compreensão dos textos lidos. Em nossa prática docente, percebemos a ampliação dos movimentos de escuta e de diálogo com os(as) estudantes nos ambientes de ensino e de aprendizagem, abertura ao paradigma da aprendizagem, a realização de tutorias e projetos de aprendizagem, o cuidado com a acolhida aos(às) que chegam e ao cuidado connosco mesmas.
description: Interacções, Vol. 17 N.º 58 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Educação Superior, Outros Projetos e Formação de Profissionais da Educação
An examination of women's existence as seen through the institution of divorce
Creators: name: Li, Agnes Akane
Publisher: name: University of British Columbia
Year: 2009

description: In the past, the male-oriented perspective in academic circles has marginalized women's existence and deemed their experiences unimportant. It was only in the 1980s that the field of women's history received acceptance from academic circles as a legitimate field of research. This thesis builds on the work that has already been done and attempts to locate women in the divorce process of the Tokugawa period. To facilitate this objective, the study focuses on the cultural phenomenon of a high divorce rate in the Tokugawa period and its implications for common women and society. This thesis argues that the high divorce rate was indicative of women's high status and liberated existence. The investigation into the divorce rate and women's existence begins with an examination of the discrepancy between the ideal social order where the men dominated the women and the reality of the situation. To facilitate this, the first half of Chapter One identifies the sources of patriarchy while the second half identifies avenues through which women participated in various aspects of society. In preparation for the discussion of divorce, Chapter Two briefly examines marriage in the Tokugawa period. It examines the wife's position within the family and identifies the various rights afforded to the wife. The inquiry into the discrepancy between the ideal and the actual resumes in Chapter Three with an examination of divorce in the Tokugawa period. Through this examination, it becomes evident that women were able to assert themselves as much as men in times of a divorce. This chapter then investigates the cultural and institutional frameworks which allowed women to assert control in times of divorce. This chapter is important in demonstrating that the high divorce rate was indicative of women's high status and liberated existence. The final chapter inquires into Tokeiji, a temple which offered an alternative to a secular divorce. The chapter discusses the implications of Tokeiji on divorce, women, and Tokugawa society through an examination of social and economic factors of the Tokugawa period.
Additional file 2 of A 16-week aerobic exercise and mindfulness-based intervention on chronic psychosocial stress: a pilot and feasibility study
Creators: name: Prochilo, Guy A.
name: Costa, Ricardo J.S.
name: Hassed, Craig
name: Chambers, Richard
name: Molenberghs, Pascal
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2 Supplementary Results.
Pump-shaping of non-collinear and non-degenerate entangled photons
Creators: name: Lib, Ohad
name: Bromberg, Yaron
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Free-space quantum key distribution is gaining increasing interest as a leading platform for long range quantum communication. However, the sensitivity of quantum correlations to scattering induced by turbulent atmospheric links limits the performance of such systems. Recently, methods for compensating the scattering of entangled photons have been demonstrated, allowing for real-time optimization of their quantum correlations. In this Letter, we demonstrate the use of wavefront shaping for compensating the scattering of non-collinear and non-degenerate entangled photons. These results demonstrate the applicability of wavefront shaping schemes for protocols utilizing the large bandwidth and emission angle of the entangled photons.
Additional file 1 of A 16-week aerobic exercise and mindfulness-based intervention on chronic psychosocial stress: a pilot and feasibility study
Creators: name: Prochilo, Guy A.
name: Costa, Ricardo J.S.
name: Hassed, Craig
name: Chambers, Richard
name: Molenberghs, Pascal
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1 Supplementary Materials.
Asymptotic dynamics of attractive-repulsive swarms
Creators: name: Leverentz, A. J.
name: Topaz, C. M.
name: Bernoff, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We classify and predict the asymptotic dynamics of a class of swarming models. The model consists of a conservation equation in one dimension describing the movement of a population density field. The velocity is found by convolving the density with a kernel describing attractive-repulsive social interactions. The kernel's first moment and its limiting behavior at the origin determine whether the population asymptotically spreads, contracts, or reaches steady-state. For the spreading case, the dynamics approach those of the porous medium equation. The widening, compactly-supported population has edges that behave like traveling waves whose speed, density and slope we calculate. For the contracting case, the dynamics of the cumulative density approach those of Burgers' equation. We derive an analytical upper bound for the finite blow-up time after which the solution forms one or more $δ$-functions.
description: 23 pages, 10 figures; revised version updates the analysis in sec. 2.1 and 2.2, and contains enhanced discussion of the admissible class of social interaction forces
Privacy-Preserving Methods for Vertically Partitioned Incomplete Data
Creators: name: Deng, Yi
name: Jiang, Xiaoqian
name: Long, Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Distributed health data networks that use information from multiple sources have drawn substantial interest in recent years. However, missing data are prevalent in such networks and present significant analytical challenges. The current state-of-the-art methods for handling missing data require pooling data into a central repository before analysis, which may not be possible in a distributed health data network. In this paper, we propose a privacy-preserving distributed analysis framework for handling missing data when data are vertically partitioned. In this framework, each institution with a particular data source utilizes the local private data to calculate necessary intermediate aggregated statistics, which are then shared to build a global model for handling missing data. To evaluate our proposed methods, we conduct simulation studies that clearly demonstrate that the proposed privacy-preserving methods perform as well as the methods using the pooled data and outperform several naïve methods. We further illustrate the proposed methods through the analysis of a real dataset. The proposed framework for handling vertically partitioned incomplete data is substantially more privacy-preserving than methods that require pooling of the data, since no individual-level data are shared, which can lower hurdles for collaboration across multiple institutions and build stronger public trust.
Mashup de Tecnologias sob a Égide da Teoria do Design Instrucional
Creators: name: Tabosa Salomão, Silvana
name: Pedro, Neuza
Publisher: name: Interacções
Year: 2021

description: Este estudo quase-experimental examina a implementação e a receptividade de um curso online incorporando atividades gamificadas e interativas para a leitura de textos académicos em inglês, bem como a avaliação de seus efeitos no desenvolvimento da proficiência leitora nesse idioma de 26 estudantes da área de Educação (graduação e pós-graduação) da Universidade Federal do Pará-Brasil. A elaboração do curso seguiu as diretrizes fornecidas pela Teoria do Design Instrucional e baseou-se em pesquisas sobre a integração das atividades gamificadas e interativas na educação. As atividades de aprendizagem foram disponibilizadas no Moodle e em apps gratuitos. Os dados foram coletados antes (pré-teste) e ao final do curso (pós-teste e Questionário de Avaliação do Curso). As análises comparativas de médias revelaram resultados favoráveis sobre os efeitos das tecnologias utilizadas. De igual modo, o questionário final de avaliação do curso evidenciou a aceitação dos estudantes ao design instrucional proposto. No geral, o estudo foi bem-sucedido nas hipóteses testadas e na sinalização de rumos para investigações futuras.
description: Interacções, Vol. 17 N.º 58 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Educação Superior, Outros Projetos e Formação de Profissionais da Educação
Narrativity as a Travelling Concept: Philologically and Anthropologically Oriented Approaches to Narrative
Creators: name: Berning, Nora
Publisher: name: KULT_online
Year: 2013

description: Matthias Aumüller's 2012 Narrativität als Begriff. Analysen und Anwendungsbeispiele zwischen philologischer und anthropologischer Orientierung is a collection of essays that discuss the concept of narrativity through the lens of different disciplines: historiography, journalism, game studies, film, literature, linguistics, language acquisition, psychoanalysis, philosophy, sociology, law, and psychology. In its entirety, the book is an eclectic overview of the multifaceted nature of narrativity that serves as a solid introduction to the commonalities and differences between philologically and anthropologically oriented conceptualizations of narrativity.
description: KULT_online, Nr. 35 (2013): KULT_online 35 (2013)
Computational Modeling in Applied Problems: collected papers on econometrics, operations research, game theory and simulation
Creators: name: Smarandache, Florentin
name: Bhattacharya, Sukanto
name: Khoshnevisan, Mohammad
name: Singh, Housila P.
name: Singh, Rajesh
name: Kaymram, F.
name: Malakar, S.
name: Salmeron, Jose L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences
subject: I.2.0; I.2.1; C.2.3

description: Computational models pervade all branches of the exact sciences and have in recent times also started to prove to be of immense utility in some of the traditionally 'soft' sciences like ecology, sociology and politics. This volume is a collection of a few cutting-edge research papers on the application of variety of computational models and tools in the analysis, interpretation and solution of vexing real-world problems and issues in economics, management, ecology and global politics by some prolific researchers in the field.
description: 108 pages, many figures
FUSE and HST/STIS far-ultraviolet observations of AM Herculis in an extended low state
Creators: name: Gaensicke, B. T.
name: Long, K. S.
name: Barstow, M. A.
name: Hubeny, I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have obtained FUSE and HST/STIS time-resolved spectroscopy of the polar AM Herculis during a deep low state. The spectra are entirely dominated by the emission of the white dwarf. Both the far-ultraviolet (FUV) flux as well as the spectral shape vary substantially over the orbital period, with maximum flux occurring at the same phase as during the high state. The variations are due to the presence of a hot spot on the white dwarf, which we model quantitatively. The white dwarf parameters can be determined from a spectral fit to the faint phase data, when the hot spot is self-eclipsed. Adopting the distance of 79+8-6pc determined by Thorstensen, we find an effective temperature of 19800+-700K and a mass of Mwd=0.78+0.12-0.17Msun. The hot spot has a lower temperature than during the high state, ~34000-40000K, but covers a similar area, ~10% of the white dwarf surface. Low state FUSE and STIS spectra taken during four different epochs in 2002/3 show no variation of the FUV flux level or spectral shape, implying that the white dwarf temperature and the hot spot temperature, size, and location do not depend on the amount of time the system has spent in the low state. Possible explanations are ongoing accretion at a low level, or deep heating, both alternatives have some weaknesses that we discuss. No photospheric metal absorption lines are detected in the FUSE and STIS spectra, suggesting that the average metal abundances in the white dwarf atmosphere are lower than 1e-3 times their solar values.
description: ApJ in press, 12 pages, 11 figures
Exploring the Concept of White Holes: A Theoretical Approach to Reverse Gravity
Creators: name: Rahman, Sadik
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Theoretical physics

description: This theoretical work explores the concept of white holes, proposing a new perspective on reverse gravity. The theory suggests that white holes could exist as opposite counterparts to black holes, emitting matter and energy instead of absorbing them. It examines the potential mechanisms that could allow a white hole to push against the gravitational pull, with a focus on how such an object might influence time and space in the universe
Additional file 1 of Circulating tumor DNA as a dynamic biomarker of response to palbociclib and fulvestrant in metastatic breast cancer patients
Creators: name: Darrigues, Lauren
name: Jean-Yves Pierga
name: Bernard-Tessier, Alice
name: Bièche, Ivan
name: Silveira, Amanda Bartolini
name: Michel, Marc
name: Loirat, Delphine
name: Cottu, Paul
name: Cabel, Luc
name: Dubot, Coraline
name: Geiss, Romain
name: Ricci, Francesco
name: Vincent-Salomon, Anne
name: Proudhon, Charlotte
name: Bidard, François-Clément
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 60506 Virology

description: Additional file 1: Supplemental Figure 1. Study workflow. Supplemental Figure 2. Progression free survival of patients under palbociclib and fulvestrant, split by median ctDNA value (median = 382 copies/ml of plasma) at baseline (bsl). Supplemental Table 1. 39 gene panel used for targeted NGS on plasma samples.
Earthquake magnitude and location estimation from real time seismic waveforms with a transformer network
Creators: name: Münchmeyer, Jannes
name: Bindi, Dino
name: Leser, Ulf
name: Tilmann, Frederik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Precise real time estimates of earthquake magnitude and location are essential for early warning and rapid response. While recently multiple deep learning approaches for fast assessment of earthquakes have been proposed, they usually rely on either seismic records from a single station or from a fixed set of seismic stations. Here we introduce a new model for real-time magnitude and location estimation using the attention based transformer networks. Our approach incorporates waveforms from a dynamically varying set of stations and outperforms deep learning baselines in both magnitude and location estimation performance. Furthermore, it outperforms a classical magnitude estimation algorithm considerably and shows promising performance in comparison to a classical localization algorithm. In this work, we furthermore conduct a comprehensive study of the requirements on training data, the training procedures and the typical failure modes using three diverse and large scale data sets. Our analysis gives several key insights. First, we can precisely pinpoint the effect of large training data; for example, a four times larger training set reduces the required time for real time assessment by a factor of four. Second, the basic model systematically underestimates large magnitude events. This issue can be mitigated by incorporating events from other regions into the training through transfer learning. Third, location estimation is highly precise in areas with sufficient training data, but is strongly degraded for events outside the training distribution. Our analysis suggests that these characteristics are not only present for our model, but for most deep learning models for fast assessment published so far. They result from the black box modeling and their mitigation will likely require imposing physics derived constraints on the neural network.
description: 24 pages main text, 20 pages appendix. This article has been accepted for publication in Geophysical Journal International Published by Oxford University Press on behalf of the Royal Astronomical Society
Pesquisa e Inovação Responsáveis na Educação Básica
Creators: name: Karollayne Pinheiro Lopes, Jessica
name: Polato Sachinski, Gabriele
name: Lupion Torres, Patrícia
Publisher: name: Interacções
Year: 2021

description: O presente artigo trata sobre a importância do desenvolvimento e adaptação de atividades na Educação Básica que visem à formação crítico-cidadã do estudante-sujeito. Por meio deste relato de experiência descritivo com abordagem qualitativa, objetiva-se analisar de que maneira a Aprendizagem Baseada em Projetos e a Pesquisa e Inovação Responsáveis (RRI) contibuem para um ensino mais crítico e reflexivo para com as questões científicas e sociais. Para tanto, foi necessário elaborar e aplicar uma sequência didática em duas turmas de 8º anos do ensino fundamental de um colégio da rede privada de ensino, localizado no Paraná. Tal atividade foi desenvolvida com classes em formato híbrido, durante a pandemia de Covid-19. Como aporte teórico, apresentam-se algumas contribuições de estudiosos da ára de RRI, tais como Okada (2016), Okada e Rodrigues (2018), Santos, Torres e Chery (2020); e da Aprendizagem Baseada em Projetos, entre eles, Behrens (2008), Torres (2004) e Moran (2015). Os resultados obtidos por meio da observação participante reforçam a necessidade de se repensar a práxis pedagógica, em especial o papel da pesquisa, para que ela não seja um fim em si mesma, mas sim uma ponte para um conhecimento crítico e bem estruturado. As conclusões sugerem que a incorporação de práticas que objetivem a colaboração, engajamento, participação, flexibilização e pesquisa podem ser um dos caminhos para se conseguir uma educação mais emancipatória e social.
description: Interacções, Vol. 17 N.º 57 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Ambiente Educacional da Escola na Educação Básica
Simple Maximum-Likelihood Decoding of Generalized First-order Reed-Muller Codes
Creators: name: Schmidt, Kai-Uwe
name: Finger, Adolf
Publisher: name: arXiv
Year: 2005
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: An efficient decoder for the generalized first-order Reed-Muller code RM_q(1,m) is essential for the decoding of various block-coding schemes for orthogonal frequency-division multiplexing with reduced peak-to-mean power ratio. We present an efficient and simple maximum-likelihood decoding algorithm for RM_q(1,m). It is shown that this algorithm has lower complexity than other previously known maximum-likelihood decoders for RM_q(1,m).
description: 5 pages, accepted for publication in IEEE Communications Letters
Additional file 1 of Implementation of prostate cancer treatment decision aid in Michigan: a qualitative study
Creators: name: Paudel, Roshan
name: Ferrante, Stephanie
name: Woodford, Jessica
name: Maitland, Conrad
name: Stockall, Eric
name: Maatman, Thomas
name: Lane, Giulia I.
name: Berry, Donna L.
name: Sales, Anne E.
name: Montie, James E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Additional file 1.
Accumulation of embedded solitons in systems with quadratic nonlinearity
Creators: name: Malomed, B. A.
name: Wagenknecht, T.
name: Champneys, A. R.
name: Pearce, M. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Previous numerical studies have revealed the existence of embedded solitons (ESs) in a class of multi-wave systems with quadratic nonlinearity, families of which seem to emerge from a critical point in the parameter space, where the zero solution has a fourfold zero eigenvalue. In this paper, the existence of such solutions is studied in a three-wave model. An appropriate rescaling casts the system in a normal form, which is universal for models supporting ESs through quadratic nonlinearities. The normal-form system contains a single irreducible parameter $ε$, and is tantamount to the basic model of type-I second-harmonic generation. An analytical approximation of WKB type yields an asymptotic formula for the distribution of discrete values of $ε$ at which the ESs exist. Comparison with numerical results shows that the asymptotic formula yields an exact value of the scaling index, -6/5, and a fairly good approximation for the numerical factor in front of the scaling term.
description: 25 pages, 4 figures
Urban development under discrete random shocks
Creators: name: Lin, Zhen'guo
Publisher: name: University of British Columbia
Year: 2009

description: This paper investigates the effects of discrete random shocks to the urban development decision and the price of land. The urban development has three important characteristics: investment irreversibility, uncertainty of future payoffs and an option to postpone the investment. In contrast to the existing literature that treats uncertainty as continuous time stochastic process, this paper considers uncertainty as a discrete time stochastic process (discrete random shocks) with two different sources of uncertainty. One is the uncertainty of the time when shock occurs, and the other is the uncertainty of the jump size shock incurs. This paper contributes to the real option literature in the following ways. First, the approach developed here can be applied to other lump sum cost investment decision under discrete random shocks; second, this paper is the first to study how discrete random shocks affect the urban development and the price of urban and agricultural land. We show that (i). The price of urban land is uniquely determined by the current rent, the mean arrival rate of random shocks and the expected value of jump size; (ii). If jump sizes with shock occurrence are all positive, landowners will convert their agricultural land to urban use when the urban rent first hits agricultural rent plus capital opportunity cost; (iii). If jump size with shock occurrence is up and down with positive probability, then (a). The higher probability of random shocks may (a.1) deter urban development and decrease the price of agricultural land; (a.2) deter urban development and increase the price of agricultural land; (a.3) encourage urban development and increase the price of agricultural land; (b). The more spread of random jumps may (b.1) deter urban development and decrease the price of agricultural land; (b.2) deter urban development and increase the price of agricultural land; (b.3) encourage urban development and increase the price of agricultural land.
A Mediação Pedagógica como Prática de Acolhimento e Aprendizagem no Ensino Superior no Contexto Pandêmico
Creators: name: Gomes, Kelly Aparecida
name: Nascimento, Gabriel Silva Xavier
Publisher: name: Interacções
Year: 2021

description: No contexto da pandemia de CoViD-19, a reestruturação social baseada em práticas de distanciamento social provocou mudanças na formação educacional e na forma de interagir com outras pessoas consolidando as tecnologias de comunicação digitais como alternativas não somente para redesenhar processos de ensino e aprendizagem como também para assegurar segurança e sobrevivência. Nesse cenário, esta pesquisa propõe reflexões a partir de um projeto chamado Professor Mediador, desenvolvido em uma Instituição de Ensino Superior no contexto de ensino não-presencial. Trata-se de uma pesquisa qualitativa de cunho descritivo que tem como objetivo avaliar o impacto do projeto nas rotinas de retomada às aulas neste formato em um período de excepcionalidade. Para isso, foram coletados depoimentos de 10 estudantes do curso de Licenciatura em Física, participantes do projeto, por meio de um formulário on-line respondido pelos alunos e analisados à luz da perspectiva Histórico-Cultural, especialmente com os conceitos de Mediação, Emoção e Zona de Desenvolvimento Proximal – ZDP, segundo Vygotsky. Apesar de todos os entraves que se instauram no período de excepcionalidade, os dados coletados evidenciam o impacto do projeto como estratégia de acesso e permanência na formação superior, ao elencar suas contribuições em termos de: disposição para o diálogo, resolução de conflitos, acolhimento e bem-estar dos alunos. Para além disso, as práticas de mediação de aprendizagem imbricadas no projeto apresentam grande potencial aplicável tanto na retomada das aulas presenciais quanto em projetos pedagógicos diversos como catalisador de práticas educacionais, por considerar as especificidades históricas, sociais e culturais dos discentes a despeito da modalidade educacional.
description: Interacções, Vol. 17 N.º 58 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Educação Superior, Outros Projetos e Formação de Profissionais da Educação
Supplementary files for 'Delineation of fungal genera based on a phylogenomic analysis, genomic relatedness indices and genomics-based synapomorphies: the example of the Saccharomycetaceae'
Creators: name: Liu, Fei
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310705
subject: Mycology

description: Supplementary files for 'Delineation of fungal genera based on a phylogenomic analysis, genomic relatedness indices and genomics-based synapomorphies: the example of the Saccharomycetaceae'
Ecoliteracia
Creators: name: Correia, Vanda
name: Pedro, Josélia
name: Matos, Pedro
Publisher: name: Interacções
Year: 2021

description: Este artigo refere-se a um trabalho de investigação realizado em contexto académico, com estudantes do 3º ano da licenciatura em Design de Comunicação do Politécnico de Portalegre, que tem por objectivo chegar à definição de um instrumento de auxílio à implementação de critérios de sustentabilidade no desenvolvimento de projetos de design de embalagens e rótulos e que, em simultâneo, constitua um contributo eficaz na educação para a ecoliteracia. Com base em exemplos encontrados na revisão da literatura recente, começou-se pela elaboração de uma ”Lista de Verificação de Ecodesign de Embalagens e Rótulos”, que foi posteriormente aplicada no desenvolvimento de um projeto académico. Após concluído o projeto, os estudantes foram inquiridos sobre a experiência de utilização da lista no decorrer do mesmo. Realizaram-se grupos de foco e questionários online; tanto as respostas e observações recolhidas, como a avaliação dos resultados finais dos projetos, confirmaram a utilidade da lista de verificação criada e o seu contributo para o aumento da ecoliteracia dos estudantes e da sua capacidade de criar soluções mais sustentáveis na definição de embalagens e rótulos.
description: Interacções, Vol. 17 N.º 58 (2021): Revelando-se Projetos Educacionais nas Práticas Pedagógicas Atuais e seus Impactos na Aprendizagem: Educação Superior, Outros Projetos e Formação de Profissionais da Educação
Valley effects on the fractions in an ultrahigh mobility SiGe/Si/SiGe two-dimensional electron system
Creators: name: Dolgopolov, V. T.
name: Melnikov, M. Yu.
name: Shashkin, A. A.
name: Huang, S. -H.
name: Liu, C. W.
name: Kravchenko, S. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We observe minima of the longitudinal resistance corresponding to the quantum Hall effect of composite fermions at quantum numbers $p=1$, 2, 3, 4, and 6 in an ultraclean strongly interacting bivalley SiGe/Si/SiGe two-dimensional electron system. The minima at $p=3$ disappear below a certain electron density, although the surrounding minima at $p=2$ and $p=4$ survive at significantly lower densities. Furthermore, the onset for the resistance minimum at a filling factor $ν=3/5$ is found to be independent of the tilt angle of the magnetic field. These surprising results indicate the intersection or merging of the quantum levels of composite fermions with different valley indices, which reveals the valley effect on fractions.
description: As published