cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gaussian Variational State Estimation for Nonlinear State-Space Models
Creators: name: Courts, Jarrad
name: Wills, Adrian
name: Schön, Thomas B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, the problem of state estimation, in the context of both filtering and smoothing, for nonlinear state-space models is considered. Due to the nonlinear nature of the models, the state estimation problem is generally intractable as it involves integrals of general nonlinear functions and the filtered and smoothed state distributions lack closed-form solutions. As such, it is common to approximate the state estimation problem. In this paper, we develop an assumed Gaussian solution based on variational inference, which offers the key advantage of a flexible, but principled, mechanism for approximating the required distributions. Our main contribution lies in a new formulation of the state estimation problem as an optimisation problem, which can then be solved using standard optimisation routines that employ exact first- and second-order derivatives. The resulting state estimation approach involves a minimal number of assumptions and applies directly to nonlinear systems with both Gaussian and non-Gaussian probabilistic models. The performance of our approach is demonstrated on several examples; a challenging scalar system, a model of a simple robotic system, and a target tracking problem using a von Mises-Fisher distribution and outperforms alternative assumed Gaussian approaches to state estimation.
Revisiting the location and environment of the central engine in NGC1068
Creators: name: Galliano, E.
name: Alloin, D.
name: Granato, G. L.
name: Villar-Martin, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We revisit in this paper the location of the various components observed in the AGN of NGC1068. Discrepancies between previously published studies are explained, and a new measurement for the absolute location of the K-band emission peak is provided. It is found to be consistent with the position of the central engine as derived by Gallimore (1997), Capetti (1997) and Kishimoto (1999). A series of map overlays is then presented and discussed. Model predictions of dusty tori show that the nuclear unresolved NIR-MIR emission is compatible with a broad range of models: the nuclear SED alone does not strongly constrain the torus geometry, while placing reasonable constraints on its size and thickness. The extended MIR emission observed within the ionizing cone is shown to be well explained by the presence of optically thick dust clouds exposed to the central engine radiation and having a small covering factor. Conversely, a distribution of diffuse dust particles within the ionizing cone is discarded. A simple model for the H2 and CO emission observed perpendicularly to the axis of the ionizing cone is proposed. We show that a slight tilt between the molecular disc and the Compton thick central absorber naturally reproduces the observed distribution of H2 of CO emission.
description: 17 pages, 11 figures, revised version for A&A
Ética e deontologia profissional nos Anais dos eventos do Congresso Brasileiro de Biblioteconomia, Documentação e Ciência da Informação de 1991 A 2007
Creators: name: Stumpf, Katiusa
Publisher: name: Cadernos BAD
Year: 2020

description: Este artigo[1] trata da Ética como um tema de interesse do Congresso Brasileiro de Biblioteconomia e Documentação (CBBD), focando-se a produção nos anais de sete edições (16ª a 22ª) deste evento. Metodologicamente o trabalho envolveu: 1) a pesquisa do tipo bibliográfico (quanto ao material utilizado para a formação do embasamento teórico; 2) a pesquisa de tipo documental (quanto à utilização dos anais e dos relatórios gerais dos eventos do CBBD para a coleta dos dados) e 3) a pesquisa de tipo exploratório (quanto aos objetivos pretendidos). Objetivou-se conhecer e averiguar nos textos dos trabalhos apresentados e presentes nos anais e nos textos dos relatórios gerais dessas edições do CBBD, os seguintes fatores: a) sobre o que tratavam os trabalhos, que abordavam o tema Ética; b) que abertura temática existia para tratar o assunto; c) quais foram as sequências de tratamento temático propostas para essas edições; d) quais foram as recomendações aprovadas ao final de cada edição e expressas nos relatórios gerais. Assim, nesse período entre 1991 e 2007, em que ocorreram sete edições do CBBD, foi localizado um total de apenas quatro trabalhos tratando da temática, em duas edições. Nas outras cinco edições do Congresso não foram apresentados quaisquer trabalhos sobre o tema. Constatou-se que a maioria destas edições do CBBD não deu clara abertura temática para que a Ética pudesse ser tratada. E na maioria das vezes nenhuma recomendação final foi manifestada nos relatórios gerais. Por fim, chegou-se a conclusão de que a Ética é um tema pouco explorado. [1] Este artigo é resultado do relatório final de uma pesquisa de iniciação científica realizada com a bolsa de estágio remunerado pelo Programa Institucional de Bolsas de Iniciação Científica (PIBIC) do Conselho Nacional de Desenvolvimento Científico e tecnológico (CNPq) desenvolvido na Universidade Federal de Santa Catarina (UFSC).
description: Cadernos BAD, N.º 2 (2019)
Additional file 3 of French recommendations for the management of systemic necrotizing vasculitides (polyarteritis nodosa and ANCA-associated vasculitides)
Creators: name: Terrier, Benjamin
name: Darbon, Raphaël
name: Cécile-Audrey Durel
name: Hachulla, Eric
name: Karras, Alexandre
name: Maillard, Hélène
name: Papo, Thomas
name: Puechal, Xavier
name: Pugnet, Grégory
name: Quemeneur, Thomas
name: Samson, Maxime
name: Taille, Camille
name: Guillevin, Loïc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 3. Vasculitis activity score—Birmingham vasculitis activity score version 2003.
title: The natural history of immune responses to malaria
Creators: name: Muchina Kinyanjui, Samson
Publisher: name: The Open University
Year: 2002

description: Available evidence suggests that responses to the parasite-induced antigens on the surface of red cells infected by mature stages of P. falciparum (PIESA) confer variant-specific immunity against malaria. However, much of the available data are derived from cross-sectional or longitudinal studies restricted to a few weeks after a malaria episode. As such, the natural history of antibody responses to PIESA is poorly documented. I set up a longitudinal framework to examine the kinetics, dynamics, and protective efficacy of anti-PIESA responses in children in Kilifi. I also used the same the framework to explore responses to other schizont antigens.

The majority of children mounted typical primary antibody responses against PIESA within two weeks of an acute episode and sustained the levels for more than 12 weeks. However, some children appear to have inadequate responses that failed to persist beyond twelve weeks. When followed up over a year period, all the children showed loss and acquisition of anti-PIESA specificities regardless of their disease experience during the period. This suggests that anti-PIESA response may be short-lived and this might be related to the predomination of the responses by short-half life IgG3 or with failure to switch from IgM to IgG.

Anti-PIESA antibody responses to certain randomly selected parasite isolates were associated with protection from subsequent clinical episodes either independently or in synergy with concurrent malaria infection. However, this protection was not related to the relative frequency with which the target isolates appear to have been encountered by the children during the follow-up period.

Besides anti-PIESA responses, possession of antibodies to a 192 kDa schizont antigen band on a Western blot was also associated with protection against clinical episodes of malaria. IgGl and IgG3 dominated responses to all the bands on the blot and for some antigens; IgG3 responses were present only in pooled plasma from immune but not non-immune individuals.

More studies are necessary in order to understand further the kinetics and dynamics of antibody responses to PIESA and other schizont antigens and the mechanisms underlying the protection against malaria that they provide.
SELECTION OF APPLE SCAB PEST MANAGEMENT STRATEGIES UNDER UNCERTAINTY: AN APPLICATION OF VARIOUS STOCHASTIC DOMINANCE TECHNIQUES
Creators: name: Cochran, Mark
name: Lodwick, Weldon
name: Jones, Alan
name: Robinson, Lindon
name: Cochran, Mark
name: Lodwick, Weldon
name: Jones, Alan
name: Robinson, Lindon
Publisher: name: Unknown
Year: 1982
Subjects: Crop Production/Industries
Risk and Uncertainty

description: For most scenarios considered the conventional spray program used to control apple scab in Michigan orchards is risk efficient even though it has an expected return below the IPM programs. Several Stochastic Dominance techiques are applied and the results compared.
Plataforma CLAV: contributo para a disponibilização de dados abertos da Administração Pública em Portugal
Creators: name: Lourenço, Alexandra
name: Ramalho, José Carlos
name: Gago, Maria Rita
name: Penteado, Pedro
Publisher: name: Cadernos BAD
Year: 2020

description: A comunicação começa por indicar as políticas e estratégias, na Europa e em Portugal, para a disponibilização de dados abertos, nos domínios da ciência aberta e da Administração Pública (AP), bem como as políticas nacionais para a transformação digital neste setor. Salienta a estratégia que tem vindo a ser desenvolvida pelo organismo de coordenação da política arquivística, a Direção-Geral do Livro, dos Arquivos e das Bibliotecas (DGLAB), para a promoção da interoperabilidade semântica e de gestão da informação arquivística, nomeadamente ao nível da sua classificação e da avaliação. Apresenta um conjunto de iniciativas da DGLAB, de que se destaca o desenvolvimento da Lista Consolidada para a classificação e avaliação da informação pública (LC), que serve de referencial para a construção normalizada dos planos de classificação e tabelas de seleção das entidades que executam funções de Estado. Especifica o projeto da DGLAB para operacionalizar a utilização da LC, intitulado “M51-CLAV - Arquivo digital: Plataforma modular de classificação e avaliação da informação pública” (CLAV), enquadrado pela Medida 51 do Programa de simplificação administrativa Simplex +, intitulado “Arquivo digital”; Este Projeto permitiu concretizar a Plataforma CLAV, que disponibiliza a referida Lista Consolidada, com as funções e processos de negócio das entidades que exercem funções públicas, bem como catálogos destas entidades e da legislação associada a esses processos. Os seus dados servem para a elaboração de planos de classificação e tabelas de seleção das entidades, devendo ser integrados nos seus sistemas de informação. São ainda utilizados para a troca de informação entre entidades, promovendo a interoperabilidade semântica na AP. A Plataforma viabiliza também a desmaterialização dos procedimentos associados à elaboração das tabelas de seleção e ao controlo da eliminação da informação pública, contribuindo assim para uma maior transparência da atuação da Administração e para uma cidadania ativa. A comunicação dá ainda conta das fases para a concretização do referido Projeto, bem como dos resultados obtidos, dando especial destaque ao modelo ontológico, fundamental para a obtenção de dados abertos, e para a sua conexão com a web semântica. Os dados da CLAV serão disponibilizados em CSV, RDF OWL, SKOS e XML, através de uma API de dados (“Application Programming Interface”), na plataforma Dados.gov.pt e no Portal ePortugal e referenciados no catálogo europeu de ativos semânticos da Joinup (plataforma colaborativa da Comissão Europeia, inserida no Programa ISA2). A comunicação especifica ainda a importância dos dados disponibilizados através da CLAV para a aplicação do Regulamento Geral de Proteção de Dados.
description: Cadernos BAD, N.º 2 (2019)
Points of quantum $\mathrm{SL}_n$ coming from quantum snakes
Creators: name: Douglas, Daniel C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 2020: 57K31, 32G15, 20G42

description: We show that the quantized Fock-Goncharov monodromy matrices satisfy the relations of the quantum special linear group $\mathrm{SL}_n^q$. The proof employs a quantum version of the technology invented by Fock-Goncharov called snakes. This relationship between higher Teichmüller theory and quantum group theory is integral to the construction of a $\mathrm{SL}_n$-quantum trace map for knots in thickened surfaces, partially developed in a companion paper (arXiv:2101.06817).
description: 47 pages (double-spaced), 21 figures. Version 3: Final version after publication
Relativistic Version of Landau Theory of Fermi Liquid in Presence of Strong Quantizing Magnetic Field- An Exact Formalism
Creators: name: Ghosh, Sutapa
name: Mandal, Soma
name: Chakrabarty, Somenath
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An exact formalism for the relativistic version of Landau theory of Fermi liquid in presence of strong quantizing magnetic field is developed. Both direct and exchange type interactions with scalar and vector coupling cases are considered.
description: REVTEX File, eight pages, no figure, accepted for Annals of Physics
Additional file 5 of French recommendations for the management of systemic necrotizing vasculitides (polyarteritis nodosa and ANCA-associated vasculitides)
Creators: name: Terrier, Benjamin
name: Darbon, Raphaël
name: Cécile-Audrey Durel
name: Hachulla, Eric
name: Karras, Alexandre
name: Maillard, Hélène
name: Papo, Thomas
name: Puechal, Xavier
name: Pugnet, Grégory
name: Quemeneur, Thomas
name: Samson, Maxime
name: Taille, Camille
name: Guillevin, Loïc
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 5. Appendix 5—List of procedures and services needed for follow-up care and treatment of long-term conditions 21—Systemic necrotizing vasculitis.
Contact geometry and quantum thermodynamics of nanoscale steady states
Creators: name: Ghosh, Aritra
name: Bandyopadhyay, Malay
name: Bhamidipati, Chandrasekhar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We develop a geometric formalism suited for describing the quantum thermodynamics of a certain class of nanoscale systems (whose density matrix is expressible in the McLennan--Zubarev form) at any arbitrary non-equilibrium steady state. It is shown that the non-equilibrium steady states are points on control parameter spaces which are in a sense generated by the steady state Massieu--Planck function. By suitably altering the system's boundary conditions, it is possible to take the system from one steady state to another. We provide a contact Hamiltonian description of such transformations and show that moving along the geodesics of the friction tensor results in a minimum increase of the free entropy along the transformation. The control parameter space is shown to be equipped with a natural Riemannian metric that is compatible with the contact structure of the quantum thermodynamic phase space which when expressed in a local coordinate chart, coincides with the Schlögl metric. Finally, we show that this metric is conformally related to other thermodynamic Hessian metrics which might be written on control parameter spaces. This provides various alternate ways of computing the Schlögl metric which is known to be equivalent to the Fisher information matrix.
description: v1 & v2: Preliminary versions, v3: Submitted to Journal, v4: Appeared in Physica A
Agenda 2030 e o campo de intervenção da Ciência de Informação: dinâmicas de aprendizagem, envolvimento e desenvolvimento de competências
Creators: name: Pinto, Leonor Gaspar
name: Ochôa, Paula
Publisher: name: Cadernos BAD
Year: 2020

description: Em 2015, os Estados Membros das Nações Unidos (ONU) adotaram uma nova agenda global para o desenvolvimento sustentável - a Agenda 2030, formada por 17 Objetivos de Desenvolvimento Sustentável (ODS), que devem ser implementados por todos os países do mundo até 2030. É neste contexto que a IFLA – International Federation of Library Associations and Institutions tem procurado refletir o contributo das bibliotecas para o desenvolvimento sustentável, visando reforçar o posicionamento do setor da Informação Documentação. Este artigo tem como objetivo alargar o espectro das estratégias possíveis a desenvolver no Ensino e nas práticas profissionais da Informação, nas áreas da avaliação do desempenho e gestão, procurando contribuir para o debate sobre estes desafios prioritários. Analisa-se a evolução das experiências realizadas (consideradas como dinâmicas que são objeto de estudo diacrónico), permitindo examinar os seus contributos e procedendo à sua diferenciação e quantificação através da (meta-)avaliação interna. Foram identificadas quatro dinâmicas de aprendizagem, envolvimento e desenvolvimento de competências em torno da sustentabilidade que indicam que o campo de intervenção da Ciência de Informação em Portugal tem vindo a consolidar as perspetivas da avaliação do desempenho, constituindo a Agenda 2030 um desafio e uma oportunidade interdisciplinar para a convergência de métricas e o desenvolvimento de competências transversais.
description: Cadernos BAD, N.º 2 (2019)
Curious Variables Experiment (CURVE). CCD Photometry of QW Serpentis in Superoutburst and Quiescence
Creators: name: Olech, A.
name: Kedzierski, P.
name: Zloczewski, K.
name: Mularczyk, K.
name: Wisniewski, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report extensive photometry of the dwarf nova QW Ser throughout its 2003 February superoutburst till quiescence. During the superoutburst the star displayed clear superhumps with a mean period of Psh = 0.07703(4) days. In the quiescence we observed a double humped wave characterized by a period of P=0.07457(2) days. As both periods obey the Stolz-Schoembs relation with a period excess equal to 3.30+/-0.06% the latter period is interpreted as the orbital period of the binary system.
description: accepted for publication in A&A, 5 pages, 7 figures
Humanidades Digitais e Ciência aberta: perspectiva e desafios para a formação humana no campo da Ciência da Informação
Creators: name: De Araujo, Izabel Antonina
name: Moura, Maria Aparecida
Publisher: name: Cadernos BAD
Year: 2020

description: Nos últimos anos, o acesso aberto ao conhecimento e a transformação no modo de fazer ciência convergiram para o conceito de ciência aberta que se refere a abertura das diferentes etapas dos processos científicos com o relativo acesso aos dados primários das pesquisas disponibilizados online. Neste contexto, o campo das humanidades digitais tornou-se o locus de experimentação voltado aos propósitos de abertura no campo científico. A Ciência da Informação, como campo interdisciplinar, tem recebido parte das demandas por formação humana advindos das novas formas de se produzir cientificamente, na medida em que o campo está relacionado à comunicação do conhecimento e governança dos fluxos informacionais para tornar acessível o conhecimento cultural, científico e tecnológico produzido. A compreensão e adoção da ciência aberta no contexto brasileiro requer reflexão, o planejamento e o desenvolvimento de propostas de formação humana que ampliem a perspectiva dos profissionais da informação em face do atual cenário de mudanças. Nesta perspectiva, este artigo aborda as temáticas ciências abertas e humanidades digitais com foco nos desafios relacionados aos modelos formativos no campo da Ciência da Informação. O estudo centra-se em revisão da literatura sobre os temas em questão e identifica algumas competências requeridas do profissional da informação. Utiliza-se como base as orientações do Projeto Foster. Considera que a formação profissional para Ciência Aberta e humanidades incentiva a criação de novos modelos interpretativos para a compreensão dos aspectos da pesquisa nas suas dimensões culturais, linguísticas, literárias e sociais.
description: Cadernos BAD, N.º 2 (2019)
Generative Network-Based Reduced-Order Model for Prediction, Data Assimilation and Uncertainty Quantification
Creators: name: Silva, Vinicius L. S.
name: Heaney, Claire E.
name: Nenov, Nenko
name: Pain, Christopher C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose a new method in which a generative network (GN) integrate into a reduced-order model (ROM) framework is used to solve inverse problems for partial differential equations (PDE). The aim is to match available measurements and estimate the corresponding uncertainties associated with the states and parameters of a numerical physical simulation. The GN is trained using only unconditional simulations of the discretized PDE model. We compare the proposed method with the golden standard Markov chain Monte Carlo. We apply the proposed approaches to a spatio-temporal compartmental model in epidemiology. The results show that the proposed GN-based ROM can efficiently quantify uncertainty and accurately match the measurements and the golden standard, using only a few unconditional simulations of the full-order numerical PDE model.
description: arXiv admin note: text overlap with arXiv:2105.07729
Nature’s Prescription : Soundscape
Creators: name: Bali, Amritpal
name: Davies, Tanner
name: Ladner, Chris
name: Marere, Faith
name: Nyangani, Ashley
Publisher: name: The University of British Columbia
Year: 2021

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Additional file 1 of Factors associated with homecare coordination and quality of care: a research protocol for a national multi-center cross-sectional study
Creators: name: Möckli, Nathalie
name: Simon, Michael
name: Meyer-Massetti, Carla
name: Pihet, Sandrine
name: Fischer, Roland
name: Wächter, Matthias
name: Serdaly, Christine
name: Zúñiga, Franziska
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Questionnaire measurements. Description of employee, client and relative questionnaire measurements.
On algebraic dependencies between Poincaré functions
Creators: name: Pakovich, Fedor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: Let $A$ be a rational function of one complex variable, and $z_0$ its repelling fixed point with the multiplier $λ.$ Then a Poincaré function associated with $z_0$ is a function $\mathcal{P}_{A,z_0,λ}$ meromorphic on $\mathbb C$ such that $\mathcal{P}_{A,z_0,λ}(0)=z_0$, $\mathcal{P}_{A,z_0,λ}'(0)\neq 0,$ and $\mathcal{P}_{A,z_0,λ}(λz)=A\circ \mathcal{P}_{A,z_0,λ}(z).$ In this paper, we investigate the following problem: given Poincaré functions $\mathcal{P}_{A_1,z_1,λ_1}$ and $\mathcal{P}_{A_2,z_2,λ_2}$, find out if there is an algebraic relation $f(\mathcal{P}_{A_1,z_1,λ_1},\mathcal{P}_{A_2,z_2,λ_2})=0$ between them and, if such a relation exists, describe the corresponding algebraic curve. We provide a solution, which can be viewed as a refinement of the classical theorem of Ritt about commuting rational functions. We also reprove and extend previous results concerning algebraic dependencies between Böttcher functions.
description: The final version, to appear in Ergod. Th. Dynam. Sys
Conditional Deep Gaussian Processes: multi-fidelity kernel learning
Creators: name: Lu, Chi-Ken
name: Shafto, Patrick
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Deep Gaussian Processes (DGPs) were proposed as an expressive Bayesian model capable of a mathematically grounded estimation of uncertainty. The expressivity of DPGs results from not only the compositional character but the distribution propagation within the hierarchy. Recently, [1] pointed out that the hierarchical structure of DGP well suited modeling the multi-fidelity regression, in which one is provided sparse observations with high precision and plenty of low fidelity observations. We propose the conditional DGP model in which the latent GPs are directly supported by the fixed lower fidelity data. Then the moment matching method in [2] is applied to approximate the marginal prior of conditional DGP with a GP. The obtained effective kernels are implicit functions of the lower-fidelity data, manifesting the expressivity contributed by distribution propagation within the hierarchy. The hyperparameters are learned via optimizing the approximate marginal likelihood. Experiments with synthetic and high dimensional data show comparable performance against other multi-fidelity regression methods, variational inference, and multi-output GP. We conclude that, with the low fidelity data and the hierarchical DGP structure, the effective kernel encodes the inductive bias for true function allowing the compositional freedom discussed in [3,4].
description: Submitted on Oct 1st 2021 with a sequel titled "Conditional Deep Gaussian Process: empirical Bayes hyperdata learning"
On the Physical Properties of Spherically Symmetric Self-Similar Solutions
Creators: name: Sharif, M.
name: Aziz, Sehar
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we are exploring some of the properties of the self-similar solutions of the first kind. In particular, we shall discuss the kinematic properties and also check the singularities of these solutions. We discuss these properties both in co-moving and also in non co-moving (only in the radial direction) coordinates. Some interesting features of these solutions turn up.
description: LaTex, 14 pages, no figure
Ultrafast Optical Control of Magnetic Order and Fermi Surface Topology at a Quantum Critical Point
Creators: name: Fauseweh, Benedikt
name: Zhu, Jian-Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Designing material properties on demand has important implications to potential future technological applications. While theoretically it is always possible to tune various intrinsic energy scales, there are fundamental limitations to this approach in experiment. In recent years, ultrafast spectroscopy has evolved as a promising tool to use light to dynamically induce non-trivial electronic states of matter. Here we theoretically investigate light pulse driven dynamics in a Kondo system close to quantum criticality. We show, that light can dehybridize the local Kondo screening and induce magnetic order out of a previously paramagnetic state. We demonstrate that, depending on the laser pulse field parameters, it is possible to deconfine the Kondo singlet and thereby induce second order phase transition to a dynamically ordered state, as well as a dynamic Lifshitz transition that changes the Fermi surface topology from hole- to electron-like.
description: 10 pages, 4 figures, comments welcome
Existence of singular rotationally symmetric gradient Ricci solitons in higher dimensions
Creators: name: Hui, Kin Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 53E20, 35J75 Secondary 53C21

description: By using fixed point argument we give a proof for the existence of singular rotationally symmetric steady and expanding gradient Ricci solitons in higher dimensions with metric $g=\frac{da^2}{h(a^2)}+a^2g_{S^n}$ for some function $h$ where $g_{S^n}$ is the standard metric on the unit sphere $S^n$ in $\mathbb{R}^n$ for any $n\ge 2$. More precisely for any $λ\ge 0$ and $c_0>0$, we prove that there exist infinitely many solutions $h\in C^2((0,\infty);\mathbb{R}^+)$ for the equation $2r^2h(r)h_{rr}(r)=(n-1)h(r)(h(r)-1)+rh_r(r)(rh_r(r)-λr-(n-1))$, $h(r)>0$, in $(0,\infty)$ satisfying $\underset{\substack{r\to 0}}{\lim}\,r^{\sqrt{n}-1}h(r)=c_0$ and prove the higher order asymptotic behaviour of the global singular solutions near the origin. We also find conditions for the existence of unique global singular solution of such equation in terms of its asymptotic behaviour near the origin.
description: typo corrected
Moduli spaces of quasi-trivial sheaves
Creators: name: Guimarães, Douglas
name: Jardim, Marcos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: A torsion-free sheaf $E$ on a projective variety $X$ is called quasi-trivial if $E^{\vee\vee}=\mathcal{O}_{X}^{\oplus r}$. While such sheaves are always $μ$-semistable, they may not be semistable. We study the Gieseker--Maruyama moduli space $\mathcal{N}_X(r,n)$ of rank $r$ semistable quasi-trivial sheaves on $X$ with $E^{\vee\vee}/E$ being a 0-dimensional sheaf of length $n$ via the Quot scheme of points $Quot(\mathcal{O}_{X}^{\oplus r},n)$. We show that, when $(X,A)$ is a good projective variety, then $\mathcal{N}_X(r,n)$ is empty when $r>n$, while $\mathcal{N}_X(n,n)$ has no stable points and is isomorphic to the symmetric product $Sym^n(X)$. Our main result is the construction of an irreducible component of $\mathcal{N}_X(r,n)$ of dimension $n(d+r-1)-r^2+1$ when $r
Trigonometric Degeneration and Orbifold Wess-Zumino-Witten Model. II
Creators: name: Takebe, Takashi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81T40

description: The sheaves of conformal blocks and conformal coinvariants of the twisted WZW model have a factorisation property and are locally free even at the boundary of the moduli space, where the elliptic KZ equations and the Baxter-Belavin elliptic r matrix degenerate to the trigonometric KZ equations and the trigonometric r matrix,o respectively. Etingof's construction of the elliptic KZ equations is geometrically interpreted.
description: 22 pages, 1 figure (psfrag.sty used), contribution to the Proceedings of "Infinite Dimensional Algebras and Integrable Systems", Faro, Portugal, on July 2003; ver. 2, typos corrected, references updated
Ensemble Slice Sampling: Parallel, black-box and gradient-free inference for correlated & multimodal distributions
Creators: name: Karamanis, Minas
name: Beutler, Florian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Slice Sampling has emerged as a powerful Markov Chain Monte Carlo algorithm that adapts to the characteristics of the target distribution with minimal hand-tuning. However, Slice Sampling's performance is highly sensitive to the user-specified initial length scale hyperparameter and the method generally struggles with poorly scaled or strongly correlated distributions. This paper introduces Ensemble Slice Sampling (ESS), a new class of algorithms that bypasses such difficulties by adaptively tuning the initial length scale and utilising an ensemble of parallel walkers in order to efficiently handle strong correlations between parameters. These affine-invariant algorithms are trivial to construct, require no hand-tuning, and can easily be implemented in parallel computing environments. Empirical tests show that Ensemble Slice Sampling can improve efficiency by more than an order of magnitude compared to conventional MCMC methods on a broad range of highly correlated target distributions. In cases of strongly multimodal target distributions, Ensemble Slice Sampling can sample efficiently even in high dimensions. We argue that the parallel, black-box and gradient-free nature of the method renders it ideal for use in scientific fields such as physics, astrophysics and cosmology which are dominated by a wide variety of computationally expensive and non-differentiable models.
description: Published in Statistics & Computing; 18 pages, 11 figures, 2 tables; Code available https://github.com/minaskar/zeus
Nature’s Prescription : UBC Social Media Nature Scavenger Hunt
Creators: name: Custeau, Alexandra
name: Kim-Marriott, Ella
name: Benna, Holly
name: Lezzi, Nicholas
Publisher: name: The University of British Columbia
Year: 2021

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Hybride Arbeit und soziale Roboter – was bedeutet das für uns als soziale Wesen?
Creators: name: Schulze, Hartmut
Publisher: name: Fachhochschule Nordwestschweiz FHNW
Year: 2023
Subjects: subject: Soziale Roboter
subject: informelle Kommunikation
subject: soziale Interaktion
subject: mobil-flexible Arbeit
subject: 150 - Psychologie
subject: 330 - Wirtschaft

description: - Der «soziale Faktor» gerät «unter Druck» … - Die Flexibilisierung der Arbeit kann zu einer Reduktion sozialer Interaktion und zu einer abnehmenden sozialen Verbundenheit führen - dies kann durch einen passenden Mix an Arbeitsorten und Büroraumgestaltung kompensiert werden - die Kommunikation mit Konversationsagenten wie Chatbots und sozialen Robotern kann ebenfalls zu vermehrtem «Machine Talk» führen und die Verbundenheit zwischen Menschen reduzieren. - positiv zu Buche schlagen Möglichkeiten der Selbsterkenntnis und der Verfügbarkeit von Wissen - Aufgabe angewandter Forschung und Entwicklung: die verschiedenen Wirkrichtungen analysieren und Anforderungen an eine «menschengerechte» Gestaltung organisationaler und technischer Bedingungen und Artefakte erarbeiten
Additional file 1 of Coping with the burden of the COVID-19 pandemic: a cross-sectional study of community pharmacists from Serbia
Creators: name: Jovičić-Bata, Jelena
name: Nebojša Pavlović
name: Nataša Milošević
name: Gavarić, Neda
name: Goločorbin-Kon, Svetlana
name: Todorović, Nemanja
name: Mladena Lalić-Popović
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
Scheduling Aerial Vehicles in an Urban Air Mobility Scheme
Creators: name: Rigas, Emmanouil S.
name: Kolios, Panayiotis
name: Ellinas, Georgios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Highly populated cities face several challenges, one of them being the intense traffic congestion. In recent years, the concept of Urban Air Mobility has been put forward by large companies and organizations as a way to address this problem, and this approach has been rapidly gaining ground. This disruptive technology involves aerial vehicles (AVs) for hire than can be utilized by customers to travel between locations within large cities. This concept has the potential to drastically decrease traffic congestion and reduce air pollution, since these vehicles typically use electric motors powered by batteries. This work studies the problem of scheduling the assignment of AVs to customers, having as a goal to maximize the serviced customers and minimize the energy consumption of the AVs by forcing them to fly at the lowest possible altitude. Initially, an Integer Linear Program (ILP) formulation is presented, that is solved offline and optimally, followed by a near-optimal algorithm, that solves the problem incrementally, one AV at a time, to address scalability issues, allowing scheduling in problems involving large numbers of locations, AVs, and customer requests.
The BIMA Survey of Nearby Galaxies (BIMA SONG). II. The CO Data
Creators: name: Helfer, Tamara T.
name: Thornley, Michele D.
name: Regan, Michael W.
name: Wong, Tony
name: Sheth, Kartik
name: Vogel, Stuart N.
name: Blitz, Leo
name: Bock, Douglas C. -J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The BIMA Survey of Nearby Galaxies is a systematic imaging study of the 3 mm CO J = 1--0 molecular emission within the centers and disks of 44 nearby spiral galaxies. The typical spatial resolution of the survey is 6", or 360 pc at the average distance (12 Mpc) of the sample, over a field of view of 10kpc. The velocity resolution of the CO observations is 4 km/s. The sample was not chosen based on CO or infrared brightness; instead, all spirals were included that met the selection criteria of vsun <= 2000 km/s, dec >= -20deg, inc <= 70deg, D25 < 70', and BT < 11.0. The detection rate was 41/44 sources or 93%. Fully-sampled single-dish CO data were incorporated into the maps for 24 galaxies; these single-dish data comprise the most extensive collection of fully-sampled, two-dimensional single-dish CO maps of external galaxies to date. We also tabulate direct measurements of the global CO flux densities for these 24 sources. We demonstrate that the measured ratios of flux density recovered are a function of the signal-to-noise of the interferometric data. We examine the degree of central peakedness of the molecular surface density distributions and show that the distributions exhibit their brightest CO emission within the central 6" in only 20/44 or 45% of the sample. We show that all three Local Group spiral galaxies have CO morphologies that are represented in SONG, though the Milky Way CO luminosity is somewhat below the SONG average, and M31 and M33 are well below average. This survey provides a unique public database of integrated intensity maps, channel maps, spectra, and velocity fields of molecular emission in nearby galaxies.
description: Full-color reprints available from the authors; full resolution figures also available in electronic version of published article or at http://astro.berkeley.edu/~thelfer/bimasong_supplement.pdf
Additional file 2 of Coping with the burden of the COVID-19 pandemic: a cross-sectional study of community pharmacists from Serbia
Creators: name: Jovičić-Bata, Jelena
name: Nebojša Pavlović
name: Nataša Milošević
name: Gavarić, Neda
name: Goločorbin-Kon, Svetlana
name: Todorović, Nemanja
name: Mladena Lalić-Popović
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2.
Mode-coupling theory and molecular dynamics simulation for heat conduction in a chain with transverse motions
Creators: name: Wang, Jian-Sheng
name: Li, Baowen
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study heat conduction in a one-dimensional chain of particles with longitudinal as well as transverse motions. The particles are connected by two-dimensional harmonic springs together with bending angle interactions. The problem is analyzed by mode-coupling theory and compared with molecular dynamics. We find very good, quantitative agreement for the damping of modes between a full mode-coupling theory and molecular dynamics result, and a simplified mode-coupling theory gives qualitative description of the damping. The theories predict generically that thermal conductance diverges as N^{1/3} as the size N increases for systems terminated with heat baths at the ends. The N^{2/5} dependence is also observed in molecular dynamics which we attribute to crossover effect.
description: 17 pages, 13 figures
Supplementary Material; Analysis Code; Main Data; Supplemental Data from Preparation and execution of voluntary action both contribute to awareness of intention
Creators: name: Schultze-Kraft, Matthias
name: Parés-Pujolràs, Elisabeth
name: Matić, Karla
name: Haggard, Patrick
name: John-Dylan Haynes
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Neuroscience
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: This document describes various supplementary analyses and model specifications; This R-script contains code necessary to run all main and supplementary analyses of our study; This file contains the data necessary to run the main analyses; This file contains the data necessary to run the supplementary analyses
DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
Creators: name: Gondolo, P.
name: Edsjo, J.
name: Ullio, P.
name: Bergstrom, L.
name: Schelke, M.
name: Baltz, E. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The question of the nature of the dark matter in the Universe remains one of the most outstanding unsolved problems in basic science. One of the best motivated particle physics candidates is the lightest supersymmetric particle, assumed to be the lightest neutralino - a linear combination of the supersymmetric partners of the photon, the Z boson and neutral scalar Higgs particles. Here we describe DarkSUSY, a publicly-available advanced numerical package for neutralino dark matter calculations. In DarkSUSY one can compute the neutralino density in the Universe today using precision methods which include resonances, pair production thresholds and coannihilations. Masses and mixings of supersymmetric particles can be computed within DarkSUSY or with the help of external programs such as FeynHiggs, ISASUGRA and SUSPECT. Accelerator bounds can be checked to identify viable dark matter candidates. DarkSUSY also computes a large variety of astrophysical signals from neutralino dark matter, such as direct detection in low-background counting experiments and indirect detection through antiprotons, antideuterons, gamma-rays and positrons from the Galactic halo or high-energy neutrinos from the center of the Earth or of the Sun. Here we describe the physics behind the package. A detailed manual will be provided with the computer package.
description: 35 pages, no figures
Adaptive estimation of irregular mean and covariance functions
Creators: name: Golovkine, Steven
name: Klutchnikoff, Nicolas
name: Patilea, Valentin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62R10, 62G05, 62M09

description: Nonparametric estimators for the mean and the covariance functions of functional data are proposed. The setup covers a wide range of practical situations. The random trajectories are, not necessarily differentiable, have unknown regularity, and are measured with error at discrete design points. The measurement error could be heteroscedastic. The design points could be either randomly drawn or common for all curves. The estimators depend on the local regularity of the stochastic process generating the functional data. We consider a simple estimator of this local regularity which exploits the replication and regularization features of functional data. Next, we use the ``smoothing first, then estimate'' approach for the mean and the covariance functions. They can be applied with both sparsely or densely sampled curves, are easy to calculate and to update, and perform well in simulations. Simulations built upon an example of real data set, illustrate the effectiveness of the new approach.
Το πλίνθινο τείχος της Δύμης
Creators: name: Τσακνάκη, Βασιλική
Publisher: name: National and Kapodistrian University of Athens
Year: 2024

description: Το τείχος της Δύμης ήταν πλίνθινο και περίκλειε μεγάλου εμβαδού οικιστικό χώρο παρέχοντας ασφάλεια στους κατοίκους της. Για τον σχεδιασμό και την εκτέλεση του πολυδάπανου δημόσιου έργου μήκους περίπου 4.900 μ., καθοριστικοί παράγοντες αποτέλεσαν η γεωγραφική θέση, η οικονομική κατάσταση, η πολιτική βούληση αλλά και η ενεργή στάση που επέλεξε η πόλη απέναντι στις ιστορικές συγκύριες, όπως προκύπτει από την επισκόπηση και σύνθεση γεγονότων και μαρτυριών. Η ανοικοδόμησή του προσδιορίζεται στις αρχές της πρώιμης ελληνιστικής εποχής. Κατασκευαστικά το τείχος εμφανίζει αυτοτελή τμήματα που επιτρέπουν την αυτόνομη λειτουργία, προσαρμογή και αρμονική ένταξή του στο φυσικό ανάγλυφο. Ο κορμός του αποτελείται εξ ολοκλήρου από ωμοπλίνθους, το κατεξοχήν δομικό υλικό της περιοχής και τη βάση του επενδύει λίθινο, κτιστό μέτωπο το οποίο στην καθ΄ύψος ανοικοδόμηση καλύπτεται με την ωμοπλινθοδομή σε οργανική σύνδεση. Η συνολική θεώρηση του αναπτύγματος της οχύρωσης διέρχεται από τα 16 σημεία που αποκαλύφθηκαν τμήματα και δομικά στοιχεία της οχύρωσης τα οποία αποτελούν σταθερά σημεία αναφοράς ενός ενιαίου μνημειακού συνόλου. Η παρουσίαση των τυπολογικών, κατασκευαστικών και μορφολογικών χαρακτηριστικών των κύριων και των πρόσθετων στοιχείων του τείχους που αποκαλύφθηκαν αποτελεί πολύτιμη πηγή πληροφοριών για τη μελέτη της αμυντικής αρχιτεκτονικής. Η καλή κατάσταση διατήρησης ορισμένων τμημάτων του μνημείου το καθιστά ξεχωριστό, όχι μόνο για την περιοχή αλλά και μεταξύ των μέχρι σήμερα γνωστών οχυρωματικών καταλοίπων του συγκεκριμένου συστήματος τείχισης των αρχαίων πόλεων.
description: Περιοδικό του Τομέα Αρχαιολογίας και Ιστορίας της Τέχνης (AURA), Vol 6 (2023)