cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Theory of Coexisting Charge and Spin-Density Waves in (TMTTF)_2Br, (TMTSF)_2PF_6 and alpha-(BEDT-TTF)_2MHg(SCN)_4
Creators: name: Mazumdar, S.
name: Ramasesha, S.
name: Clay, R. T.
name: Campbell, D. K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments indicate that the spin-density waves (SDWs) in (TMTTF)_2Br, (TMTSF)_2PF_6 and alpha-(BEDT-TTF)_2MHg(SCN)_4 are highly unconventional and coexist with charge-density waves (CDWs). We present a microscopic theory of this unusual CDW-SDW coexistence. A complete understanding requires the explicit inclusion of strong Coulomb interactions, lattice discreteness, the anisotropic two-dimensional nature of the lattice, and the correct bandfilling within the starting Hamiltonian.
description: 5 pages, 4 EPS figures
Sistema integrado de geração automática de conteúdo para videojogos de plataformas
Creators: name: Mourato, Fausto
name: Birra, Fernando
name: Santos, Manuel Próspero Dos
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Videojogos de plataformas
Geração Procedimental de Conteúdo
Ajuste de Dificuldade

description: Neste artigo é apresentado um sistema de suporte à geração automática de níveis para videojogos de plataformas. Este assenta numa framework genérica de representação de níveis, compatível com grande parte dos conceitos existentes neste tipo de jogos. Numa perspectiva de edição de conteúdo, o sistema pode ser utilizado como editor de níveis genérico. A arquitectura desenvolvida é modular e baseada em plugins, permitindo a adaptação para outros formatos de níveis. Com um princípio similar, é possível integrar algoritmos de geração automática e adaptação de conteúdo. É abordada a arquitectura da solução proposta e a forma como é possível estabelecer um pipeline de algoritmos de geração automática. Finalmente, são também descritos alguns destes algoritmos.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 19
description: 26
description: Fausto Mourato, Fernando Birra, and Manuel Próspero dos Santos
description: Videojogos de plataformas, Geração Procedimental de Conteúdo, Ajuste de Dificuldade
Additional file 5 of Circular RNA circMET drives immunosuppression and anti-PD1 therapy resistance in hepatocellular carcinoma via the miR-30-5p/snail/DPP4 axis
Creators: name: Huang, Xiao-Yong
name: Zhang, Peng-Fei
name: Wei, Chuan-Yuan
name: Peng, Rui
name: Lu, Jia-Cheng
name: Gao, Chao
name: Cai, Jia-Bing
name: Yang, Xuan
name: Fan, Jia
name: Ke, Ai-Wu
name: Zhou, Jian
name: Shi, Guo-Ming
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology

description: Additional file 5: Figure S1. a. The agreement between RNA-seq and qRT-PCR results; b. A negative relationship between CD8 and circMET; c. The relationship between CD4+ and CD8+ T cells in HCC tissues and the overall survival and cumulative recurrence of HCC patients was analyzed in 209 HCC patients. Figure S2. a. The expression of miR-30a/b/c/d/e-5p in HepG2 and HCCLM3 cells was determined by qRT-PCR; b. The expression of snail in HCC cells interfered with miR-30a/b/c/d/e-5p, (here we only showed miR-30b/c/d -5p); c. The chip peaks over chromosomes in snail Chip-seq; d The repertoire of snail-binding sites in HCC cell lines; Figure S3. The expression of 27 genes from the TCGA. Figure S4. a. The luciferase activity of DPP4 was upregulated in cells cotransfected with the Snail DDP4-promoter and 21,975 + TK/ 21,976 + TK; b. The luciferase activity of PDGFB after cotransfection of Snail and PDGFB vectors; c. The luciferase activity of CSPP1 after cotransfection of Snail and CSPP1 vectors; d. Snail interacts with distant sites 140,810 and 96,828 of DPP4 as enhancer elements to upregulate the DPP4 expression. Figure S5. a. The DPP4 level in Hep1–6 cells interfered with si-miR-30b-5p or si-miR-30c-5p or si-miR-30d-5p; b. Chemokine chips were used to determine the differences in chemokines between the sera of mice implanted with Hep-1-6-snail and the sera of mice implanted with Hep-1-6-shmiR-30s cells; c. Images of Hep1–6 tumors from each group and Tumor growth curves of Hep-1-6 tumors from each group(n = 3); d. Images of Hep1–6-circMET and Hep1–6-snail tumors from each group and Tumor growth curves of Hep-1-6-circMET and Hep1–6-snail tumors from each group (n = 3).
Experimental demonstration of quantum advantage for one-way communication complexity
Creators: name: Kumar, Niraj
name: Kerenidis, Iordanis
name: Diamanti, Eleni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The goal of demonstrating a quantum advantage with currently available experimental systems is of utmost importance in quantum information science. While this remains elusive for quantum computation, the field of communication complexity offers the possibility to already explore and showcase this advantage for useful tasks. Here, we define such a task, the Sampling Matching problem, which is inspired by the Hidden Matching problem and features an exponential gap between quantum and classical protocols in the one-way communication model. Our problem allows by its conception a photonic implementation based on encoding in the phase of coherent states of light, the use of a fixed size linear optic circuit, and single-photon detection. This enables us to demonstrate experimentally an advantage in the transmitted information resource beyond a threshold input size, which would have been impossible to reach for the original Hidden Matching problem. Our demonstration has implications in various communication and cryptographic settings, for example for quantum retrieval games and quantum money.
description: 12 pages, 9 figures, 2 tables
Identificação de Objetos em Imagens Tomográficas através de GPGPUs
Creators: name: Preto, Bruno
name: Birra, Fernando
name: Medeiros, Pedro
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Algoritmos de processamento de imagens a três dimensões
Paralelização de aplicações
OpenCL
Tomografia
GPGPU

description: Neste artigo encontra-se a implementação e a avaliação de um novo algoritmo híbrido (CPU-GPU) para a identificação de estruturas conexas em volumes de dados tridimensionais. Este algoritmo explora o paralelismo tanto ao nível do CPU como dos GPGPUs. Contudo, o processamento é maioritariamente realizado em GPUs. A motivação para este algoritmo resulta da sua utilização no contexto dum sistema mais vasto e orientado para a resolução de problemas de caracterização estrutural de materiais através de tomografia. Através da solução presente no artigo, será possíveánalisar a localização e a morfologia dos objetos presentes nos volumes tridimensionais. A grande vantagem da utilização deste algoritmo deve-se a permitir tempos de execução bastante baixos, bem como `a capacidade de processar grandes volumes de dados. Neste caso, as soluções parciais são calculadas de forma independente numa partição dos dados iniciais, sendo posteriormente integradas pelo CPU, usando uma abordagem que permite, ainda assim, explorar o paralelismo oferecido pelos múltiplos cores CPU.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 27
description: 34
description: Bruno Preto, Fernando Birra, and Pedro Medeiros
description: Algoritmos de processamento de imagens a três dimensões; Paralelização de aplicações; OpenCL; Tomografia; GPGPU
Androdeloscia Leistikow 1999
Creators: name: Grangeiro, Daniela Correia
name: Souza, Leila Aparecida
name: Christoffersen, Martin Lindsey
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Philosciidae
Androdeloscia

description: Genus Androdeloscia Leistikow, 1999
 Type species: Chaetophiloscia hamigera Vandel, 1952, by original designation.
description: Published as part of Grangeiro, Daniela Correia, Souza, Leila Aparecida & Christoffersen, Martin Lindsey, 2021, Three new species of Androdeloscia Leistikow, 1999 (Oniscidea: Philosciidae) from the Brazilian Amazonia, pp. 321-341 in Zootaxa 5047 (3) on page 322, DOI: 10.11646/zootaxa.5047.3.5, http://zenodo.org/record/5540889
Stationary states of a rotating Bose-Einstein condensate: routes to vortex nucleation
Creators: name: Madison, K. W.
name: Chevy, F.
name: Bretin, V.
name: Dalibard, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using a focused laser beam we stir a $^{87}$Rb Bose-Einstein condensate confined in a magnetic trap. We observe that the steady states of the condensate correspond to an elliptic cloud, stationary in the rotating frame. These steady states depend nonlinearly on the stirring parameters (amplitude and frequency), and various solutions can be reached experimentally depending on the path followed in this parameter space. These states can be dynamically unstable and we observe that such instabilities lead to vortex nucleation in the condensate.
description: 4 pages, 3 eps figures
Visualização em Tempo Real de um Modelo Esparso de Mistura Paramétrica para Síntese da BTF
Creators: name: Silva, Nuno
name: Santos, Luís Paulo
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Materiais complexos
BTF
Visualização em tempo real
GPU
Ray tracing

description: As funções de textura bidirecionais (Bidirectional Texture Functions - BTF) permitem visualizações de alta qualidade de materiais reais, que exibem detalhes complexos na sua aparência, e que não podem ser fielmente representados por funções paramétricas mais simples. Representações fiéis deste tipo de materiais requerem grandes quantidades de dados, dificultando a sua visualização em tempo real. A compressão de BTFs constitui um compromisso entre qualidade visual e tempo de síntese. Este artigo apresenta um visualizador a correr integralmente no GPU, usando um motor de ray tracing, de uma representação recente para BTFs, o Modelo Esparso de Mistura Paramétrica (Sparse Parametric Mixture Model - SPMM). A escalabilidade com o número de BTFs e o número de luzes é também estudado.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 35
description: 41
description: Nuno Silva and Luís Paulo Santos
description: Materiais complexos, BTF, Visualização em tempo real, GPU, Ray tracing
A finite element method of the self-consistent field theory on general curved surfaces
Creators: name: Wei, Huayi
name: Xu, Ming
name: Si, Wei
name: Jiang, Kai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Block copolymers provide a wonderful platform in studying the soft condensed matter systems. Many fascinating ordered structures have been discovered in bulk and confined systems. Among various theories, the self-consistent field theory (SCFT) has been proven to be a powerful tool for studying the equilibrium ordered structures. Many numerical methods have been developed to solve the SCFT model. However, most of these focus on the bulk systems, and little work on the confined systems, especially on general curved surfaces. In this work, we developed a linear surface finite element method, which has a rigorous mathematical theory to guarantee numerical precsion, to study the self-assembled phases of block copolymers on general curved surfaces based on the SCFT. Furthermore, to capture the consistent surface for a given self-assembled pattern, an adaptive approach to optimize the size of the general curved surface has been proposed. To demonstrate the power of this approach, we investigate the self-assembled patterns of diblock copolymers on several distinct curved surfaces, including five closed surfaces and an unclosed surface. Numerical results illustrate the efficiency of the proposed method. The obtained ordered structures are consistent with the previous results on standard surfaces, such as sphere and torus. Certainly, the proposed numerical framework has the capability of studying the phase behaviors on general surfaces precisely.
Realidade Virtuaáplicada ao Tratamento da Ansiedade Social
Creators: name: Pinheiro, Tânia
name: Cláudio, Ana Paula
name: Carmo, Maria Beatriz
name: Esteves, Francisco
Publisher: name: The Eurographics Association
Year: 2021
Subjects: realidade virtual
humanos virtuais
ansiedade social
medo de falar em público

description: A ansiedade, cada vez mais frequente na nossa sociedade, pode ser muito debilitante em situações extremas e até mesmo conduzir a problemas de saúde sérios, se não for tratada de forma adequada. Este artigo descreve uma aplicação para apoio ao tratamento da ansiedade social, mais especificamente a ansiedade de falar em público. A aplicação envolve: i) uma simulação que se desenrola num cenário virtual de um auditório contendo um conjunto de humanos virtuais animados com comportamentos controláveis e ii) uma interface através da qual o terapeuta controla estes comportamentos e um conjunto de características e de eventos da simulação. O uso de ambientes de Realidade Virtual no tratamento de fobias surgiu na década de 90 e implica, habitualmente custos elevados. O desafio que tentámos abrac¸ar com este trabalho foi desenvolver uma aplicação de baixo custo. Para desenvolver a aplicação escolhemos o Blender, uma ferramenta de uso livre para a criação de animações 3D e videojogos. A simulação é projectada numa simples tela de projecção, em perspectiva e de uma maneira tal que o paciente veja os elementos projectados com um tamanho idêntico ao dos elementos correspondentes do mundo real.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 43
description: 49
description: Tânia Pinheiro, Ana Paula Cláudio, Maria Beatriz Carmo, and Francisco Esteves
description: realidade virtual, humanos virtuais, ansiedade social, medo de falar em público
Unilateral perineural anaesthesia on the lame leg facilitates the selection of z bar shoeing technique for the treatment of navicular syndrome
Creators: name: Chanda, Metha
name: Wittaya Senarat
name: Ekkalak Thongkam
name: Kanokporn Kanthavichit
name: Chanikarn Puangthong
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Navicular syndrome causes chronic lameness and attenuates the exercise performance. Several shoeing methods have been implemented, but their success has been inconsistent. The objective of this study was to develop a diagnostic aid to select the appropriate shoeing method for the treatment of navicular syndrome. Five equestrian horses with chronic lameness were studied. The lameness examination, then unilateral anaesthetics and trotting after each point of administration were performed until no lameness sign. Radiographs were later taken of the affected hooves. The horses were diagnosed with navicular syndrome with unilateral palmar pain, z bar shoes were applied on the lame legs. Gait was analysed before shoeing and 5 min, 2, 4 and 8 weeks after shoeing except for horse no. 3, for which the evaluation at 8 weeks was omitted. Horses no. 2 and 3 showed a significant decrease in lameness score at 2 weeks and progressive decrease at 4 or 8 weeks. Horses no. 1, 4 and 5 demonstrated a significant reduction in lameness score at 4 weeks and substantial decreases at 8 weeks after shoeing. Although a limited number of animals, unilateral perineural anaesthesia on the lame leg facilitates the selection of z bar shoeing for navicular syndrome treatment.
Short-range antiferromagnetic correlations in Kondo insulators
Creators: name: Rappoport, Tatiana G.
name: Figueira, M. S.
name: Continentino, M. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the influence of short range antiferromagnetic correlations between local $f$-electrons on the transport and thermodynamic properties of Kondo insulators, as first proposed by Coqblin et al. for metallic heavy fermions. The inter-site magnetic correlations produce an effective bandwidth for the $f$-electrons. They are treated on the same footing as the local Kondo correlations such that two energy scales appear in our approach. We discuss the competition between these two scales on the physical properties.
description: 13 pages, 13 figures. To be published in Physics Letters A
Reliability and validity of the Multidimensional Driving Style Inventory in Chinese drivers
Creators: name: Long, Sun
name: Ruosong, Chang
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Objective: The Multidimensional Driving Style Inventory (MDSI) has been widely used in assessing the associations between driving styles and traffic violations and accidents in different cultural contexts. Due to the lack of a valid instrument to assess driving style, studies concerning driving style and its influence factors are limited in China. Thus, this study aimed to adapt and validate a Chinese version of the MDSI. Methods: Seven hundred and sixty drivers aged from 19 to 60 years old were asked to complete the MDSI and a personality scale (trait anger, sensation seeking, altruism, and normlessness). Exploratory factory analysis (EFA) and confirmatory factor analysis (CFA) were used to obtain the factorial structure of the MDSI. The external validity of the MDSI was then evaluated by examining the associations between driving styles and personality traits, demographic variables, and traffic violations and crashes. Results: EFA revealed a 6-factor structure of the MDSI (i.e., risky, anxious, angry, distress reduction, careful, and dissociative driving styles). CFA confirmed that the model fit of the MDSI was acceptable. The MDSI factors were moderately or weakly correlated with trait anger, sensation seeking, altruism, and normlessness. Significant gender and age differences in driving styles were found. Moreover, drivers who had traffic violations or crashes in the past year scored higher on risky and angry driving styles and lower on careful driving style than those who had not have traffic violations or crashes. Conclusions: The Chinese version of the MDSI proved to be a reliable, valid, and highly useful instrument. It could be used to assess Chinese drivers who are at risk due to their maladaptive driving styles.
Modelação Procedimental de Ambientes Rodoviários para Simulação de Condução
Creators: name: Campos, Carlos
name: Leitão, João Miguel
name: Coelho, António
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Ambientes Rodoviários
Modelação 3D
Modelação Procedimental
Simulação de Condução

description: A modelação de ambientes rodoviários para simulação de condução pode-se tornar uma tarefa morosa e dispendiosa de recursos, se não se recorrer a métodos de modelação automática. Os ambientes rodoviários utilizados na simulação de condução têm que obedecer a elevados requisitos de especificação e de realismo. A simulação de condução para fins científicos requer ainda a coexistência de uma descrição semântica do ambiente, que permitirá a colocação de atores durante a simulação e a produção de relatórios relativos à simulação. Este artigo apresenta uma proposta de uma metodologia para a modelação procedimental de ambiente rodoviários adequados para simulação em tempo real. A metodologia proposta integra a modelação procedimental de ambiente rodoviários num único processo desde a determinação dos nós de ligação até à obtenção do modelo geométrico e da descrição semântica de todos os elementos envolvidos. No desenho desta metodologia pretendeu- se mapear os conceitos e práticas utilizadas em engenharia de vias, produzindo assim ambientes rodoviários semelhantes aos encontrados em traçado real. Será possíveá interação, por utilizadores não especialista em engenharia informática, em qualquer fase do processo de especificação do ambiente permitindo cumprir as especificações particulares de cada ensaio experimental. Estão previstas tarefas de avaliação dos modelos obtidos, quer a nível do seu traçado, da rede rodoviária gerada, assim como avaliação de todo o processo automático de geração de modelos. Prevê-se que a metodologia proposta permita obter de forma eficiente modelos 3D de excelente qualidade e a adequados à utilização em sistemas de simulação visual para fins científicos.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 51
description: 58
description: Carlos Campos, João Miguel Leitão, and António Coelho
description: Ambientes Rodoviários, Modelação 3D, Modelação Procedimental, Simulação de Condução
Isididae Lamouroux 1812
Creators: name: Saucier, Esprit Heestand
name: France, Scott C.
name: Watling, Les
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Alcyonacea
Isididae

description: Family Isididae Lamouroux, 1812   Type genus: Isis Linnaeus, 1758
 Diagnosis. Colony with articulated skeleton of gorgonin nodes alternating with calcareous internodes that are solid and composed of radiating bundles of sclerite-like units. Branches originate from the internodes, always beginning with a node at the base of the branch. Coenenchyme thick; polyps completely retractile into small pockets in the coenenchyme, leaving only small pores visible on the surface. Polyps mostly devoid of sclerites, with small rods only in the tentacles. Coenenchyme sclerites mostly small clubs, but may include 6-, 7- or 8-radiates, warty rods, spindles and crosses, heavily sculpted capstans, dumbbells, and double cones.
 Included genera: Isis Linnaeus, 1758
 Remarks. The genus Chelidonisis has routinely been included in the Isididae subfamily Isidinae with Isis, chiefly on the basis of the presence of 6-radiate sclerites in the coenenchyme. However, there are several morphological differences that distinguish the two genera. The axis of Isis is thick with smooth longitudinal ridges on the internodes, whereas in Chelidonisis the axis is slender and the ridges on the internodes are festooned with small spines. The coenenchyme of Isis is very thick and encompasses retractile polyps as compared to the thin coenenchyme of Chelidonisis, wherein the polyps contract into armored verrucae on the branch. In addition, the coenenchyme sclerites of Isis are very diverse capstans, tuberculate spindles, and clubs, whereas in Chelidonisis the sclerites are predominantly 6-radiates and spindles, and capstans are never present. Finally, the two genera occur in widely separated clades on the molecular phylogeny (Figures 2, 3), as also shown by Quattrini et al. (2020).
description: Published as part of Saucier, Esprit Heestand, France, Scott C. & Watling, Les, 2021, Toward a revision of the bamboo corals: Part 3, deconstructing the Family Isididae, pp. 247-272 in Zootaxa 5047 (3) on page 266, DOI: 10.11646/zootaxa.5047.3.2, http://zenodo.org/record/5540714
CaS: Collection-aware Segmentation
Creators: name: Costa, Raquel
name: Fonseca, Manuel J.
name: Ferreira, Alfredo
Publisher: name: The Eurographics Association
Year: 2021
Subjects: 3D Object Segmentation
3D Object Collections
Automatic Segmentation
Similarity Estimation

description: Ao longo dos tempos, a segmentação tem provado ser um desafio devido `a sua subjectividade. A segmentação depende não apenas do domínio em causa mas acima de tudo da interpretação que os humanos fazem do objecto. Para cada contexto, diversas soluções específicas foram propostas com diferentes objectivos, limitações e vantagens. Neste trabalho propomos ultrapassar algumas dessas limitações usando o algoritmo de segmentação Collection-aware Segmentation (CaS). Este algoritmo identifica segmentos de objectos em colecções baseados na sua individualidade nessa colecção. Para esse efeito realizámos um conjunto de testes para compreender como as pessoas segmentam objectos numa colecção. A partir dos resultados destes testes desenvolvemos os algoritmos Adaped-CaS e Geons-augmented CaS. Avaliações experimentais com utilizadores mostraram que a abordagem proposta produz segmentações com significado para os humanos.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 59
description: 66
description: Raquel Costa, Manuel J. Fonseca, and Alfredo Ferreira
description: 3D Object Segmentation, 3D Object Collections, Automatic Segmentation, Similarity Estimation
The effects of copper doping on photocatalytic activity at (101) planes of anatase TiO2: A theoretical study
Creators: name: Assadi, M. Hussein N.
name: Hanaor, Dorian A. H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Copper dopants are varyingly reported to enhance photocatalytic activity at titanium dioxide surfaces through uncertain mechanisms. In order to interpret how copper doping might alter the performance of titanium dioxide photocatalysts in aqueous media we applied density functional theory methods to simulate surface units of doped anatase (101) planes. By including van der Waals interactions, we consider the energetics of adsorbed water at anatase surfaces in pristine and copper doped systems. Simulation results indicate that copper dopant at anatase (101) surfaces is most stable in a 2+ oxidation state and a disperse configuration, suggesting the formation of secondary CuO phases is energetically unfavourable. In agreement with previous reports, water at the studied surface is predicted to exhibit molecular adsorption with this tendency slightly enhanced by copper. Results imply that the enhancement of photoactivity at anatase surfaces through Cu doping is more likely to arise from electronic interactions mediated by charge transfer and inter-bandgap states increasing photoexcitation and extending surface-hole lifetimes rather than through the increased density of adsorbed hydroxyl groups.
Phase Separation in a Simple Model with Dynamical Asymmetry
Creators: name: Ahluwalia, Rajeev
Publisher: name: arXiv
Year: 1998
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We perform computer simulations of a Cahn-Hilliard model of phase separation which has dynamical asymmetry between the two coexisting phases. The dynamical asymmetry is incorporated by considering a mobility function which is order parameter dependent. Simulations of this model reveal morphological features similar to those observed in viscoelastic phase separation. In the early stages, the minority phase domains form a percolating structure which shrinks with time eventually leading to the formation of disconnected domains. The domains grow as L(t) ~ t^{1/3} in the very late stages. Although dynamical scaling is violated in the area shrinking regime, it is restored at late times. However, the form of the scaling function is found to depend on the extent of dynamical asymmetry.
description: 16 pages in LaTeX format and 6 Postscript figures
Classifying Lensed Gravitational Waves in the Geometrical Optics Limit with Machine Learning
Creators: name: Singh, Amit Jit
name: Li, Ivan S. C.
name: Hannuksela, Otto A.
name: Li, Tjonnie G. F.
name: Kim, Kyungmin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves are theorized to be gravitationally lensed when they propagate near massive objects. Such lensing effects cause potentially detectable repeated gravitational wave patterns in ground- and space-based gravitational wave detectors. These effects are difficult to discriminate when the lens is small and the repeated patterns superpose. Traditionally, matched filtering techniques are used to identify gravitational-wave signals, but we instead aim to utilize machine learning techniques to achieve this. In this work, we implement supervised machine learning classifiers (support vector machine, random forest, multi-layer perceptron) to discriminate such lensing patterns in gravitational wave data. We train classifiers with spectrograms of both lensed and unlensed waves using both point-mass and singular isothermal sphere lens models. As the result, classifiers return F1 scores ranging from 0.852 to 0.996, with precisions from 0.917 to 0.992 and recalls ranging from 0.796 to 1.000 depending on the type of classifier and lensing model used. This supports the idea that machine learning classifiers are able to correctly determine lensed gravitational wave signals. This also suggests that in the future, machine learning classifiers may be used as a possible alternative to identify lensed gravitational wave events and to allow us to study gravitational wave sources and massive astronomical objects through further analysis.
description: 12 pages, 4 figures, 4 tables, submitted to American Journal of Undergraduate Research
Tilted Disks around Black Holes: A Numerical Parameter Survey for Spin and Inclination Angle
Creators: name: White, Christopher J.
name: Quataert, Eliot
name: Blaes, Omer
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We conduct a systematic study of the properties of tilted accretion flows around spinning black holes, covering a range of tilt angles and black hole spins, using the general-relativistic magnetohydrodynamics code Athena++. The same initial magnetized torus is evolved around black holes with spins ranging from 0 to 0.9, with inclinations ranging from 0 degrees to 24 degrees. The tilted disks quickly reach a warped and twisted shape that rigidly precesses about the black hole spin axis with deformations in shape large enough to hinder the application of linear bending wave theory. Magnetized polar outflows form, oriented along the disk rotation axes. At sufficiently high inclinations a pair of standing shocks develops in the disks. These shocks dramatically affect the flow at small radii, driving angular momentum transport. At high spins they redirect material more effectively than they heat it, reducing the dissipation rate relative to the mass accretion rate and lowering the radiative efficiency of the flow.
description: 20 pages, 14 figures, to be published in ApJ
Charge-density waves in the Hubbard chain: evidence for 4k_F instability
Creators: name: Paiva, Thereza
name: Santos, Raimundo R dos
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Charge density waves in the Hubbard chain are studied by means of finite-temperature Quantum Monte Carlo simulations and Lanczos diagonalizations for the ground state. We present results both for the charge susceptibilities and for the charge structure factor at densities ρ=1/6 and 1/3; for ρ=1/2 (quarter filled) we only present results for the charge structure factor. The data are consistent with a 4k_F instability dominating over the 2k_F one, at least for sufficiently large values of the Coulomb repulsion, U. This can only be reconciled with the Luttinger liquid analyses if the amplitude of the 2k_F contribution vanishes above some U^*(ρ).
description: RevTeX, 4 two-column pages with 7 colour figures embedded in text
Trachysphaera gibbula
Creators: name: Antić, Dragan
name: Šević, Mirko
name: Macek, Oliver
name: Akkari, Nesrine
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Chromista
Oomycota
Peronosporea
Peronosporales
Pythiaceae
Trachysphaera
Trachysphaera gibbula

description: Trachysphaera gibbula (Latzel, 1884)
Fig. 3C, E.
 Trachysphaera costata var. gibbula Latzel, 1884 syntypes (NHMW MY1823): 4 ex., “Steiermark-Kroatien”, H. Sillaber rev. 1983. Other material: Austria, Styria, Leechwald, 8 ex. (NHMW MY1732), C. Attems leg. and det.
description: Published as part of Antić, Dragan, Šević, Mirko, Macek, Oliver & Akkari, Nesrine, 2021, Review of Trachysphaera Heller, 1858 (Diplopoda: Glomerida: Glomeridae) in Serbia, with taxonomic notes on the genus, pp. 273-299 in Zootaxa 5047 (3) on page 294, DOI: 10.11646/zootaxa.5047.3.3, http://zenodo.org/record/5540863
Additional file 4 of High expression of ESRP1 regulated by circ-0005585 promotes cell colonization in ovarian cancer
Creators: name: Deng, Guanming
name: Zhou, Xiaofang
name: Chen, Le
name: Yao, Ying
name: Li, Junjun
name: Zhang, Yun
name: Luo, Chenhui
name: Sun, Lijuan
name: Tang, Jie
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 4: Figure S3. ESRP1-related pathways.
Intentionally added ionic surfactants induce Jones-Ray effect at air-water interface
Creators: name: Uematsu, Yuki
name: Chida, Kengo
name: Matsubara, Hiroki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Jones-Ray effect is an anomalous minimum in the surface tension of aqueous electrolytes at millimolar salt concentrations. We experimentally demonstrated that intentionally added ionic surfactants induce the Jones-Ray effect. The one-dimensional Poisson-Boltzmann theory, including the effect of surfactant adsorption and salt depletion, excellently agrees with the obtained experimental data. All the parameters of the ion-specific surface affinities used in the theory are consistent with previous experiments. These results strongly suggest that the Jones-Ray effect observed so far has been induced by the inevitable contamination of the air-water interfaces.
description: 5 pages, 4 figures
Diplectrona indica
Creators: name: Pandher, Manpreet Singh
name: Kaur, Simarjit
name: Garima, Deepti
name: Parey, Sajad H.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Diplectrona
Diplectrona indica

description: Diplectrona indica (Mosely 1931)
(Figs 1–5)
 Diagnosis. This species is similar to Diplectrona jacobsoni Ulmer 1909, D. ismene Malicky 2002, D. hermione Malicky & Chantaramongkol 2002, and D. eurykleia Malicky 2002 as the dorsal views of the male genitalia are very similar in all these species, especially similar to D. ismene. However, the lateral lobes of tergum X are twisted outwards in D. indica at 2/3rd of their length in dorsal view and are longer than the mesocaudal lobes; whereas the lateral lobes, though twisted, are almost equal to the mesocaudal lobes in length in dorsal view in D. ismene.
 Description. Adult male color in alcohol dark brown, wings light brown, antennae and maxillary palps infuscate, dorsum of head and thorax black. Length from tip of head to apex of folded forewings about 7.25 mm; maxillary palps each 2.25 mm long, segment II longer than III, V as long as I–IV combined; labial palps each 0.75 mm long. Length of each forewing about 6 mm, venation typical for genus; Sc and R1 running independently to wing apex; each hind wing about 5 mm long, Sc thickened, R1 bowed subapically, fork I present.
 Male genitalia (Figs 1–5). Abdominal segment IX annular, anterolateral margins slightly convex; posterior margin nearly straight, produced ventrolaterally over bases of inferior appendages. Tergum X divided into paired mesocaudal and lateral lobes; mesocaudal lobes each apically rounded and slightly convergent in dorsal view, apicomesally separated to mid-length; enclosed by projecting lateral lobes. Lateral lobes each broad basally in lateral and dorsal views, distally narrow, angulate, slightly constricted, twisted, and divergent preapically. Inferior appendages long, stout, slender; each with basal segment about 3 times as long as apical one; apical segment small, curved mesad sub-basally and pointed apically. Phallus tubular, elongate, slightly angled near base, with 2 pairs of elongate dorsolateral spines and ventral scoop-like structure possibly representing phallicata.
 Material examined. India: Meghalaya, Bhagmara, 200 m, 12-v-2009, Pandher, (NPC), 2 males.
 Distribution. Oriental Biogeographic Region: India (Meghalaya, Karnataka, Kerala).
description: Published as part of Pandher, Manpreet Singh, Kaur, Simarjit, Garima, Deepti & Parey, Sajad H., 2021, Genus Diplectrona Westwood 1840 (Insecta: Trichoptera) in India, pp. 342-352 in Zootaxa 5047 (3) on page 343, DOI: 10.11646/zootaxa.5047.3.6, http://zenodo.org/record/5540925
Verwirklichungschancen von marginalisierten Gruppen in Albanien: Explorative Untersuchung des Arbeitsintegrationsprojektes Coaching for Employment and Entrepreneurship anhand des Capability Approach
Creators: name: Koth, Yves
name: Mosimann, Mitja
Publisher: name: Zenodo
Year: 2019

description: Das Projekt Coaching for Employment and Entrepreneurship (C4EE) hat zum Ziel marginalisierte und vulnerable Menschen zwischen 18 und 35 Jahren in den albanischen Arbeitsmarkt zu integrieren. Die explorative Untersuchung beschäftigt sich mit der Frage, welche Auswirkungen C4EE auf die Teilnehmenden hat. Den theoretischen Bezugsrahmen der Arbeit bilden der Capability Approach und das Empowerment-Konzept. Ausserdem werden Hintergründe erläutert, um den albanischen Kontext zu berücksichtigen. Für die qualitative Untersuchung dienten Gruppendiskussionen und halbstandardisierte Einzelinterviews als Erhebungsinstrumente. Die Befragten benannten unterschiedliche Einflüsse des Coachings auf ihr Leben. Das Coaching führte bei vielen dazu, dass sich ihr Selbstwert verbesserte, wobei das Gruppensetting und die erlernten Kommunikationsfertigkeiten einen wichtigen Beitrag dazu leisteten. Bei vielen verbesserten sich die Möglichkeiten zur soziale Teilhabe. Einige konnten Anstellungen in ihren Wunschberufen finden. Grundsätzlich verbesserte sich die finanzielle Situation durch das regelmässige Einkommen. Es zeigte sich auch, wo Schwierigkeiten bestehen. Besonders die Vereinbarkeit von Arbeit und Familie ist eine Herausforderung. Die Beurteilung aus der Perspektive der Sozialen Arbeit ist überwiegend positiv, da angenommen werden kann, dass das Coaching den Handlungsspielraum der Befragten vergrössert hat. Basierend auf den Ergebnissen werden nachhaltige Bereiche des C4EE identifiziert und als Hypothesen formuliert. Mit Blick auf die Praxis können verschiedene Erfolgsfaktoren und Optimierungsmöglichkeiten benannt werden.
description: + Code Diss LU: hslusa basp be 2019+ Code Diss LU: hslusa bask be 2019 + Fussnote: Bachelorarbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Sozialpädagogik & Soziokultur, 2019 + NL-Code: NLLUHSA201909
Estudo sobre a propagação do calor durante o procedimento de ablação cardíaca com e sem resfriamento da parede esofágica
Creators: name: Faria, Sylvia de Sousa
name: Souza, Priscilla Costa de
name: Souza, Gabriela Pessoa
name: Rosa, Suélia de Siqueira Rodrigues Fleury
name: Rocha, Adson Ferreira
Publisher: name: Zenodo
Year: 2019
Subjects: ablação cardíaca
biocalor
resfriamento
radiofrequência
esôfago

description: O procedimento de ablação cardíaca por radiofrequência (ACRF) é muito utilizado para o tratamento da fibrilação atrial (FA). Apesar da ACRF ser considerada segura, uma complicação comum é a formação de lesões devido a aquecimento excessivo gerado pela radiofrequência. O objetivo do artigo é simular computacionalmente a propagação do calor gerado pelo eletrodo de ablação nos tecidos do coração, gordura e esôfago. Nesse estudo foi feito um comparativo entre as temperaturas de cada tecido estudado, com e sem resfriamento da parede esofágica (PE) por meio da equação de bio-transferência de calor de Pennes em um modelo bidimensional. As temperaturas na simulação para a ponta do eletrodo de ablação foram 50, 80 e 100 ºC; e a parede do esôfago foi resfriada a 0 °C. Os resultados sugerem que, sem o resfriamento da parede esofágica, ocorre o aquecimento da parede externa do esôfago a temperaturas maiores que 50 ºC. As simulações mostram também que o resfriamento da parede do esôfago pode evitar o superaquecimento dessa região. Estudos futuros serão realizados para se obter maior acurácia e desenvolvimento do tema.
Ray Tracing of Large Models on a Multi-Projection Display
Creators: name: Costa, Vasco
name: Pereira, João M.
name: Jorge, Joaquim A.
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Raytracing
Parallel rendering
Distributed applications

description: O uso de écrans de grande dimensão, no nosso caso uma 'display wall' multi-projector, tem vindo a aumentar. Quando vários utilizadores precisam de visualizar uma cena ou quando um único utilizador necessita de obter uma visão alargada do problema e requer uma resolução mais elevada que a disponível utilizando os outros tipos de écran `a sua disposição. é natural que as cenas visualizadas neste tipo de écran de alta definição tenham também uma resolução elevada. Para efeitos de avaliação do desempenho do sistema de visualização utilizamos modelos 3D com uma complexidade na ordem de dezenas de milhões de triângulos. O sistema funciona através da subdivisão do écran de grande dimensão em M grupos de amostras em que M é o número de máquinas no aglomerado de computadores. Cada amostra é sintetizada trac¸ando raios com recurso a um algoritmo de subdivisão espacial por nós concebido. O sistema permite a visualização a ritmos interactivos de cenas deste tipo.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 67
description: 72
description: Vasco Costa, João M. Pereira, and Joaquim A. Jorge
description: Raytracing, Parallel rendering, Distributed applications
Luminescence from highly excited nanorings: Luttinger liquid description
Creators: name: Shahbazyan, T. V.
name: Perakis, I. E.
name: Raikh, M. E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study theoretically the luminescence from quantum dots of a ring geometry. For high excitation intensities, photoexcited electrons and holes form Fermi seas. Close to the emission threshold, the single-particle spectral lines aquire weak many-body satellites. However, away from the threshold, the discrete luminescence spectrum is completely dominated by many-body transitions. We employ the Luttinger liquid approach to exactly calculate the intensities of all many-body spectral lines. We find that the transition from single-particle to many-body structure of the emission spectrum is governed by a single parameter and that the distribution of peaks away from the threshold is universal.
description: 10 pages including 2 figures
Superconductivity in the surface state of noble metal gold and its Fermi level tuning by EuS dielectric
Creators: name: Wei, Peng
name: Manna, Sujit
name: Eich, Marius
name: Lee, Patrick
name: Moodera, Jagadeesh
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The induced superconductivity (SC) in a robust and scalable quantum material with strong Rashba spin-orbit coupling is particularly attractive for generating topological superconductivity and Majorana bound states (MBS). Gold (111) thin film has been proposed as a promising candidate because of the large Rashba energy, the predicted topological nature and the possibility for large-scale MBS device fabrications. We experimentally demonstrate two important steps towards achieving such a goal. We successfully show induced SC in the Shockley surface state (SS) of ultrathin Au(111) layers grown over epitaxial vanadium films, which is easily achievable on a wafer scale. The emergence of SC in the SS, which is physically separated from a bulk superconductor, is attained by indirect quasiparticle scattering processes instead of by conventional interfacial Andreev reflections. We further show the ability to tune the SS Fermi level (E_F) by interfacing SS with a high-k dielectric ferromagnetic insulator EuS. The shift of E_F from ~ 550 mV to ~34mV in superconducting SS is an important step towards realizing MBS in this robust system.
description: 23 pages, 5 figures
Energy of asymptotically AdS black holes in Exotic Massive Gravity and its log-extension
Creators: name: Mann, Robert B.
name: Oliva, Julio
name: Sajadi, S. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently a new three-dimensional theory of gravity, dubbed Exotic Massive Gravity, was proposed as a unitary theory both in the bulk as well as in the dual CFT. This is the second simplest example, the first being Minimal Massive Gravity. Since the divergence of the field equations vanishes on-shell, Exotic Massive Gravity has third-way consistency. Here we show how to compute mass and angular momentum in this theory, and then implement our result in various solutions, both for generic values of the couplings as well as at chiral points of the theory. For the latter, the asymptotic AdS behaviour is relaxed and the metric acquires logarithmic terms, which may lead to a logarithmic CFT in the boundary. Remarkably, even in the presence of this relaxed asymptotic behaviour, the charges turn out to be finite, defining non-linear solutions of what could be called Exotic Log Gravity.
Adaptação de Simbologia em Realidade Aumentada
Creators: name: Carmo, Maria Beatriz
name: Cláudio, Ana Paula
name: Ferreira, António
name: Afonso, Ana Paula
name: Montez, Edgar
name: Simplício, Raúl
Publisher: name: The Eurographics Association
Year: 2021
Subjects: Realidade Aumentada
Adaptação de Simbologia
Estudos com Utilizadores

description: Em aplicações de Realidade Aumentada, quando a cor dos elementos gráficos, que são desenhados sobre uma imagem real, é semelhante à cor do fundo circundante, torna-se difícil identificar esses elementos. O ajuste dinâmico do aspecto dos símbolos (objectos virtuais), em função da cor do fundo, deverá permitir melhorar a legibilidade da informação a transmitir ao utilizador. O objectivo deste trabalho é identificar um conjunto de adaptações a aplicar aos símbolos que permitam realçá-los mas sem alterar a sua semântica. Neste artigo apresentamos o resultado de dois estudos que efectuámos. No primeiro, averiguámos as preferências dos utilizadores relativamente às seguintes adaptações dos símbolos: adição de um rebordo, ajuste da luminosidade da cor, aumento do tamanho, e alteração da cor dos caracteres no interior do símbolo. Os utilizadores preferiram maioritariamente a adição de rebordo e em segundo lugar o ajuste da luminosidade da cor. Tendo em atenção estes resultados, realizámos um segundo estudo para averiguar qual a variação mínima da luminosidade para que um símbolo se destaque da cor do fundo, cujo resultado indica cerca de 0.25 unidades do modelo HSV.
description: 20o EPCG: Encontro Portugues de Computacao Grafica
description: Artigos longos
description: 73
description: 79
description: Maria Beatriz Carmo, Ana Paula Cláudio, António Ferreira, Ana Paula Afonso, Edgar Montez, and Raúl Simplício
description: Realidade Aumentada, Adaptação de Simbologia, Estudos com Utilizadores