cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparing the Effectiveness of Cast Iron Spheroidization by the Traditional Methodand Using a Reaction Chamber (Reactor) Placed in Foundry Mould
Creators: name: Angrecki, M.
name: Stefański, Z.
name: Palma, A.
name: J. Kamińska
name: Pamuła, E.
Publisher: name: The Katowice Branch of the Polish Academy of Sciences
Year: 2018
Subjects: Magnesium yield
Spheroidization methods
Reaction chamber(reactor)
Evaluation of effectiveness
Ductile (spheroidal graphite) iron

description: Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry: Theoretical Aspects of Casting Processes, Innovative Foundry Technologies and Materials, Foundry Processes Computer Aiding, Mechanization, Automation and Robotics in Foundry, Transport Systems in Foundry, Castings Quality Management, Environmental Protection.
description: The effectiveness of cast iron spheroidization with FeSiMg master alloy by the traditional method and using a reaction chamber placed in the cavity of foundry mould was compared. The method of cast iron treatment in mould cavity using a reaction chamber is an innovative technology developed by the Foundry Research Institute in Krakow. The effectiveness of the spheroidization process carried out by both methods was checked on a series of test castings. The article also presents the results of metallographic examinations and mechanical testing, including the discussion of magnesium yield and its assimilation rate.
(:unav)
Creators: name: (:Unav)
Publisher: name: Polish Academy of Sciences Committee on Agronomic Sciences Section of Land Reclamation and Environmental Engineering in Agriculture; Institute of Technology and Life Sciences
Year: 2020

description: Journal of Water and Land Development - is a peer reviewed research journal published in English. Journal has been published continually since 1998. From 2013, the journal is published quarterly in the spring, summer, autumn, and winter. In 2011 and 2012 the journal was published twice a year, and between 1998 and 2010 it was published as a yearbook. . Papers may report the results of experiments, theoretical analyses, design of machines and mechanization systems, processes or processing methods, new materials, new measurements methods or new ideas in information technology.
 The Journal of Water and Land Development is the quarterly journal devoted to the publication of papers dealing with the following subjects: - development of water resources in small river basins: assessment of surface and ground water resources, drought and floods, the methods of assessment of man activity influence on water resources; - sustainable development of agricultural landscape: farm arrangement, wetlands protection, the role of forest and grassland; - protection of water resources quality: non-point contamination from agriculture, villages and farms, methods of surface and ground water pro-tection; - irrigation and drainage: management, maintenance and operation, water use, water-crop relations, the influence of drainage and irrigation on environment; - hydraulic structures for water management in small basins, earth structures, river conservation, etc.

 Journal Metrics
Cite Score 2.2
Index Copernicus Value 132.77
 SCImago Journal Rank 0.418
Scource Normalized Impact per Paper 1.134
He-enriched STAREVOL models for globular cluster multiple populations. Self-consistent isochrones from ZAMS to the TP-AGB phase
Creators: name: Costa, G.
name: Dumont, T.
name: Lançon, A.
name: Palacios, A.
name: Charbonnel, C.
name: Prugniel, P.
name: Ekstrom, S.
name: Georgy, C.
name: Branco, V.
name: Coelho, P.
name: Martins, L.
name: Borisov, S.
name: Voggel, K.
name: Chantereau, W.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A common property of globular clusters (GC) is to host multiple populations characterized by peculiar chemical abundances. Recent photometric studies suggest that the He content could vary between the populations of a GC by up to $Δ$He $\sim$ 0.13, in mass fraction. The initial He content impacts the evolution of low-mass stars by ultimately modifying their lifetimes, luminosity, temperatures, and, more generally, the morphology of post-RGB evolutionary tracks in the Hertzsprung-Russell diagram. We present new physically accurate isochrones with different initial He-enrichments and metallicities, with a focus on the methods implemented to deal with the post-RGB phases. The isochrones are based on tracks computed with the stellar evolution code STAREVOL for different metallicities (Z = 0.0002, 0.0009, 0.002, and 0.008) and with different He-enrichment (from 0.25 to 0.6 in mass fraction). We describe the effect of He-enrichment on the morphology of the isochrones and test these by comparing the predicted number counts of HB and AGB stars with those of selected GCs. Comparing the number ratios, we find that our new theoretical ones agree with the observed values within $1σ$ in most cases. The work presented here sets the ground for future studies on stellar populations in globular clusters, in which the abundances of light elements in He-enhanced models will rely on different assumptions for the causes of this enrichment. The developed methodology permits the computation of isochrones from new stellar tracks with non-canonical stellar processes. The checked number counts ensure that, at least in this reference set, the contribution of the luminous late stages of stellar evolution to the integrated light of a GC is represented adequately.
description: 15 pages, 12 figures, accepted for publication in Astronomy & Astrophysics
Group theoretical approach to quantum fields in de Sitter space II. The complementary and discrete series
Creators: name: Joung, E.
name: Mourad, J.
name: Parentani, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use an algebraic approach based on representations of de Sitter group to construct covariant quantum fields in arbitrary dimensions. We study the complementary and the discrete series which correspond to light and massless fields and which lead new feature with respect to the massive principal series we previously studied (hep-th/0606119). When considering the complementary series, we make use of a non-trivial scalar product in order to get local expressions in the position representation. Based on these, we construct a family of covariant canonical fields parametrized by SU(1,1)/U(1). Each of these correspond to the dS invariant alpha-vacua. The behavior of the modes at asymptotic times brings another difficulty as it is incompatible with the usual definition of the in and out vacua. We propose a generalized notion of these vacua which reduces to the usual conformal vacuum in the conformally massless limit. When considering the massless discrete series we find that no covariant field obeys the canonical commutation relations. To further analyze this singular case, we consider the massless limit of the complementary scalar fields we previously found. We obtain canonical fields with a deformed representation by zero modes. The zero modes have a dS invariant vacuum with singular norm. We propose a regularization by a compactification of the scalar field and a dS invariant definition of the vertex operators. The resulting two-point functions are dS invariant and have a universal logarithmic infrared divergence.
description: 39 pages, 1 figure
title: Luxemburgs Studiengang zur Ausbildung von Grundschullehrerinnen und -lehrern
Creators: name: Busana, Gilbert
name: Poncelet, Débora
name: Reef, Alain
name: Rivas, Salvador
Publisher: name: Luxembourg Centre for Educational Testing (LUCET) & Service de Coordination de la Recherche et de l’Innovation pédagogiques et technologiques (SCRIPT)
Year: 2021

description: Nationaler Bildungsbericht Luxemburg 2021
Cookie Monster: Efficient On-device Budgeting for Differentially-Private Ad-Measurement Systems
Creators: name: Tholoniat, Pierre
name: Kostopoulou, Kelly
name: McNeely, Peter
name: Sodhi, Prabhpreet Singh
name: Varanasi, Anirudh
name: Case, Benjamin
name: Cidon, Asaf
name: Geambasu, Roxana
name: Lécuyer, Mathias
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: With the impending removal of third-party cookies from major browsers and the introduction of new privacy-preserving advertising APIs, the research community has a timely opportunity to assist industry in qualitatively improving the Web's privacy. This paper discusses our efforts, within a W3C community group, to enhance existing privacy-preserving advertising measurement APIs. We analyze designs from Google, Apple, Meta and Mozilla, and augment them with a more rigorous and efficient differential privacy (DP) budgeting component. Our approach, called Cookie Monster, enforces well-defined DP guarantees and enables advertisers to conduct more private measurement queries accurately. By framing the privacy guarantee in terms of an individual form of DP, we can make DP budgeting more efficient than in current systems that use a traditional DP definition. We incorporate Cookie Monster into Chrome and evaluate it on microbenchmarks and advertising datasets. Across workloads, Cookie Monster significantly outperforms baselines in enabling more advertising measurements under comparable DP protection.
description: Published at SOSP '24. v5: typos and minor changes. v4: camera-ready version. v3: changed to non-anonymized name after acceptance notification, clarified text and reformatted graphs in {\S}8. v2: added pseudocode in {\S}3.3
Die 4. COVID-19-Welle wurde durch fehlenden Impfschutz angestoßen: Was ist zu tun?
Creators: name: Maier, Benjamin F.
name: Burdinski, Angelique
name: Klamser, Pascal
name: Wiedermann, Marc
name: Jenny, Mirjam A.
name: Betsch, Cornelia
name: Brockmann, Dirk
Publisher: name: Robert Koch-Institut
Year: 2021
Subjects: subject: 610 Medizin und Gesundheit

description: Neue Berechnungen auf der Basis eines mathematischen Ansteckungsmodells (es werden zwei verschiedene Szenarien mit unterschiedlichen Impfeffektivitäten angenommen) zeigen, dass eine effektive Erhöhung der Impfquote dringend notwendig ist: Bei 8 – 9 von 10 SARS-CoV-2-Ansteckungen ist mindestens eine ungeimpfte Person beteiligt – als Ansteckender, Angesteckter oder beides. Geimpfte spielen nur bei 5 – 6 von 10 Ansteckungen eine Rolle. Die röffentlichten Beispiele illustrieren, dass der Großteil der Neuinfektionen durch fehlenden Impfschutz verursacht wird, obwohl ungeimpfte Personen nur ca. 32 % der Bevölkerung ausmachen.
Time-dependent Density Functional calculation of e-H scattering
Creators: name: van Faassen, Meta
name: Wasserman, Adam
name: Engel, Eberhard
name: Zhang, Fan
name: Burke, Kieron
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phase shifts for single-channel elastic electron-atom scattering are derived from time-dependent density functional theory. The H$^-$ ion is placed in a spherical box, its discrete spectrum found, and phase shifts deduced. Exact-exchange yields an excellent approximation to the ground-state Kohn-Sham potential, while the adiabatic local density approximation yields good singlet and triplet phase shifts.
description: 5 pages, 4 figures, 1 table
CONTROLE ESTRATÉGICO E MENSURAÇÃO DA PERFORMANCE EM FUNDOS DE PENSÃO: UM ENSAIO SOBRE AS LIMITAÇÕES E POSSIBILIDADES METODOLÓGICAS
Creators: name: Rezende, José Francisco De Carvalho
name: Fontes, Joaquim Rubens
Publisher: name: Revista de Informação Contábil
Year: 2008
Subjects: Palavras-chave: fundos de pensão; controle estratégico; avaliação de desempenho; governança; balanced scorecard.

description: O ensaio apresenta revisão teórica e histórica, baseando-se, adicionalmente, em pesquisas e observações de campo realizadas pelos autores sobre a gestão de entidades fechadas de previdência complementar (EFPC) e sobre a gestão do desempenho das organizações no contexto brasileiro. Busca identificar oportunidades para aprimoramento da geração de valor para os diversos stakeholders, tendo como pano de fundo de seis características do negócio previdência privada e de quatro aspectos inerentes à dinâmica de gestão das EFPC. As proposições sobre a construção de um placar genérico de desempenho balanceado levam em conta que o diálogo estratégico é o cerne do processo de criação de valor, devendo, todavia, estar enquadrado em moldura definida pelas características sócio-culturais e políticas da organização. Palavras-chave: fundos de pensão; controle estratégico; avaliação de desempenho; governança; balanced scorecard.
description: Revista de Informação Contábil, v. 2, n. 1 (2008): RIC/UFPE - Revista de Informação Contábil
Analysis of scalar fields with series convolution
Creators: name: Baysazan, Emir
name: Birkandan, Tolga
name: Unver, Ismail Eyuphan
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Wave equations for some curved spacetimes may involve functions that prevent a solution in a closed form. In some cases, these functions can be eliminated by transformations and the solutions can be found analytically. In the cases where such transformations are not available, the infinite series expansions of these functions can be convoluted with the power series solution ansatz. We study such an example where the solution is based on a special function.
description: 22 pages. Matches the published version
Algorithm-driven Advances for Scientific CT Instruments: From Model-based to Deep Learning-based Approaches
Creators: name: Venkatakrishnan, S. V.
name: Mohan, K. Aditya
name: Ziabari, Amir Koushyar
name: Bouman, Charles A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Multi-scale 3D characterization is widely used by materials scientists to further their understanding of the relationships between microscopic structure and macroscopic function. Scientific computed tomography (CT) instruments are one of the most popular choices for 3D non-destructive characterization of materials at length scales ranging from the angstrom-scale to the micron-scale. These instruments typically have a source of radiation that interacts with the sample to be studied and a detector assembly to capture the result of this interaction. A collection of such high-resolution measurements are made by re-orienting the sample which is mounted on a specially designed stage/holder after which reconstruction algorithms are used to produce the final 3D volume of interest. The end goal of scientific CT scans include determining the morphology,chemical composition or dynamic behavior of materials when subjected to external stimuli. In this article, we will present an overview of recent advances in reconstruction algorithms that have enabled significant improvements in the performance of scientific CT instruments - enabling faster, more accurate and novel imaging capabilities. In the first part, we will focus on model-based image reconstruction algorithms that formulate the inversion as solving a high-dimensional optimization problem involving a data-fidelity term and a regularization term. In the last part of the article, we will present an overview of recent approaches using deep-learning based algorithms for improving scientific CT instruments.
ปัญญาสรรค์สร้างห้องแถวการค้า จังหวัดตรัง
Creators: name: ปัทม์ วงค์ประดิษฐ์
Publisher: name: Thammasat Printing House
Year: 2018
Subjects: ภูมิปัญญาท้องถิ่น
ห้องแถวการค้าจังหวัดตรัง

description: Journal of Architectural/Planning Research and Studies, 15, 2, 71-90
Coevolution of Quantum Wave Functions and the Friedmann Universe
Creators: name: Sumner, W. Q.
name: Sumner, D. Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Erwin Schrodinger (1939) proved that quantum wave functions coevolve with the curved spacetime of the Friedmann universe. Schrodinger's derivation explains the Hubble redshift of photons in an expanding universe, the energy changes of moving particles, and establishes the coevolution of atoms and other quantum systems with spacetime geometry. The assumption often made that small quantum systems are isolated and that their properties remain constant as the Friedmann universe evolves is incompatible with relativistic quantum mechanics and with general relativity.
description: 8 pages
MHONGOOSE discovery of a gas-rich low-surface brightness galaxy in the Dorado Group
Creators: name: Maccagni, F. M.
name: de Blok, W. J. G.
name: Piña, P. E. Mancera
name: Ragusa, R.
name: Iodice, E.
name: Spavone, M.
name: McGaugh, S.
name: Oman, K. A.
name: Oosterloo, T. A.
name: Koribalski, B. S.
name: Kim, M.
name: Adams, E. A. K.
name: Amram, P.
name: Bosma, A.
name: Bigiel, F.
name: Brinks, E.
name: Chemin, L.
name: Combes, F.
name: Gibson, B.
name: Healy, J.
name: Holwerda, B. W.
name: Józsa, G. I. G.
name: Kamphuis, P.
name: Kleiner, D.
name: Kurapati, S.
name: Marasco, A.
name: Spekkens, K.
name: Veronese, S.
name: Walter, F.
name: Zabel, N.
name: Zijlstra, A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the discovery of a low-mass gas-rich low-surface brightness galaxy in the Dorado Group, at a distance of 17.7 Mpc. Combining deep MeerKAT 21-cm observations from the MeerKAT HI Observations of Nearby Galactic Objects: Observing Southern Emitters (MHONGOOSE) survey with deep photometric images from the VST Early-type Galaxy Survey (VEGAS) we find a stellar and neutral atomic hydrogen (HI) gas mass of $M_\star = 2.23\times10^6$ M$_\odot$ and $M_{\rm HI}=1.68\times10^6$ M$_\odot$, respectively. This low-surface brightness galaxy is the lowest mass HI detection found in a group beyond the Local Universe ($D\gtrsim 10$ Mpc). The dwarf galaxy has the typical overall properties of gas-rich low surface brightness galaxies in the Local group, but with some striking differences. Namely, the MHONGOOSE observations reveal a very low column density ($\sim 10^{18-19}$ cm$^{-2}$) HI disk with asymmetrical morphology possibly supported by rotation and higher velocity dispersion in the centre. There, deep optical photometry and UV-observations suggest a recent enhancement of the star formation. Found at galactocentric distances where in the Local Group dwarf galaxies are depleted of cold gas (at $390$ projected-kpc distance from the group centre), this galaxy is likely on its first orbit within the Dorado group. We discuss the possible environmental effects that may have caused the formation of the HI disk and the enhancement of star formation, highlighting the short-lived phase (a few hundreds of Myr) of the gaseous disk, before either SF or hydrodynamical forces will deplete the gas of the galaxy.
description: 18 pages, 14 figures, 5 tables; accepted for publication in A&A
ABORDAGENS DA CONTROLADORIA EM LIVROS PUBLICADOS NO BRASIL
Creators: name: Grande, Jefferson Fernando
name: Beuren, Ilse Maria
Publisher: name: Revista de Informação Contábil
Year: 2008
Subjects: Abordagens da controladoria; Livros publicados; Brasil.

description: : Mudanças no ambiente empresarial interferiram no processo de gestão das empresas e enalteceram o papel da Controladoria. Porém, a fragilidade da plataforma teórica da Controladoria dificulta o entendimento de suas funções. O objetivo do artigo é identificar as abordagens do tema Controladoria em livros nacionais, nas três perspectivas preconizadas por Borinelli (2006). Foi realizada pesquisa exploratória, com abordagem qualitativa, em livros nacionais que contém no título o termo Controladoria. No catálogo da Fundação Biblioteca Nacional foram encontrados 41 livros, constituindo-se na população da pesquisa. Após a exclusão dos livros que não atendiam aos critérios definidos para o estudo restaram 22 títulos, desses foi pesquisada uma amostra por acessibilidade ou conveniência de sete livros. A análise se deu com base na Controladoria sob as três perspectivas preconizadas por Borinelli (2006): conceitual, procedimental e organizacional. Os resultados da pesquisa mostram que a Controladoria sob a perspectiva conceitual praticamente não é abordada nos livros pesquisados. Enquanto unidade organizacional ela é abordada não com muita ênfase, mas dois livros versam sobre ela em capítulos específicos. A abordagem predominante nos livros pesquisados é a procedimental, já que em todos os livros são apresentadas funções da Controladoria, assim como artefatos que podem ser utilizados por ela, principalmente nas fases do processo de gestão. Conclui-se, limitando-se aos títulos pesquisados, que as abordagens do tema Controladoria em livros nacionais ainda é incipiente, principalmente nos aspectos conceituais e ela como unidade organizacional, portanto suscitando mais pesquisas sobre a teoria e a práxis da controladoria para uma exposição mais completa em livros. Palavras-chave: Abordagens da controladoria; Livros publicados; Brasil.
description: Revista de Informação Contábil, v. 2, n. 1 (2008): RIC/UFPE - Revista de Informação Contábil
title: Erste Schritte in die Erwerbstätigkeit
Creators: name: Institut national pour le développement de la formation professionnelle continue (INFPC)
Publisher: name: Luxembourg Centre for Educational Testing (LUCET) & Service de Coordination de la Recherche et de l’Innovation pédagogiques et technologiques (SCRIPT)
Year: 2021

description: Nationaler Bildungsbericht Luxemburg 2021
Engineered Josephson diode effect in kinked Rashba nanochannels
Creators: name: Maiellaro, Alfonso
name: Trama, Mattia
name: Settino, Jacopo
name: Guarcello, Claudio
name: Romeo, Francesco
name: Citro, Roberta
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The superconducting diode effect, reminiscent of the unidirectional charge transport in semiconductor diodes, is characterized by a nonreciprocal, dissipationless flow of Cooper pairs. This remarkable phenomenon arises from the interplay between symmetry constraints and the inherent quantum behavior of superconductors. Here, we explore the geometric control of the diode effect in a kinked nanostrip Josephson junction based on a two-dimensional electron gas (2DEGs) with Rashba spin-orbit interaction. We provide a comprehensive analysis of the diode effect as a function of the kink angle and the out-of-plane magnetic field. Our analysis reveals a rich phase diagram, showcasing a geometry and field-controlled diode effect. The phase diagram also reveals the presence of an anomalous Josephson effect related to the emergence of trivial zero-energy Andreev bound states, which can evolve into Majorana bound states. Our findings indicate that the exceptional synergy between geometric control of the diode effect and topological phases can be effectively leveraged to design and optimize superconducting devices with tailored transport properties.
description: 10 pages, 6 figures
Half or full core-hole in density functional theory X-ray absorption spectrum calculations of water?
Creators: name: Cavalleri, Matteo
name: Odelius, Michael
name: Nordlund, Dennis
name: Nilsson, Anders
name: Pettersson, Lars G. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the performance of two different core-hole potentials in the theoretical modeling of XAS of ice, liquid and gas phase water; the use of a full core-hole (FCH) in the calculations, as suggested by Hetenyi et al. [J. Chem. Phys. 120 (18), 8632 (2004)], gives poor agreement with experiment in terms of intensity distribution as well as transition energies, while the half core hole (HCH) potential, in the case of water, provides a better compromise between initial and final state effects, leading to good agreement with the experimental data.
description: 4 pages, 3 figures
Frictional quantum decoherence
Creators: name: Bellomo, Bruno
name: Barnett, Stephen M.
name: Jeffers, John
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyze dissipation and decoherence in the evolution of both a Gaussian and a Schrödinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.
description: 18 pages, 7 figures
Superconductivity assisted change of the perpendicular magnetic anisotropy in V/MgO/Fe junctions
Creators: name: González-Ruano, César
name: Caso, Diego
name: Johnsen, Lina G.
name: Tiusan, Coriolan
name: Hehn, Michel
name: Banerjee, Niladri
name: Linder, Jacob
name: Aliev, Farkhad G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Controlling the perpendicular magnetic anisotropy (PMA) in thin films has received considerable attention in recent years due to its technological importance. PMA based devices usually involve heavy-metal (oxide)/ferromagnetic-metal bilayers, where, thanks to interfacial spin-orbit coupling (SOC), the in-plane (IP) stability of the magnetization is broken. Here we show that in V/MgO/Fe(001) epitaxial junctions with competing in-plane and out-of-plane (OOP) magnetic anisotropies, the SOC mediated interaction between a ferromagnet (FM) and a superconductor (SC) enhances the effective PMA below the superconducting transition. This produces a partial magnetization reorientation without any applied field for all but the largest junctions, where the IP anisotropy is more robust; for the smallest junctions there is a reduction of the field required to induce a complete OOP transition ($H_\text{OOP}$) due to the stronger competition between the IP and OOP anisotropies. Our results suggest that the degree of effective PMA could be controlled by the junction lateral size in the presence of superconductivity and an applied electric field. We also discuss how the $H_\text{OOP}$ field could be affected by the interaction between magnetic stray fields and superconducting vortices. Our experimental findings, supported by numerical modelling of the ferromagnet-superconductor interaction, open pathways to active control of magnetic anisotropy in the emerging dissipation-free superconducting spin electronics.
Deterministic characterization of stochastic genetic circuits
Creators: name: Scott, Matthew
name: Hwa, Terence
name: Ingalls, Brian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: For cellular biochemical reaction systems where the numbers of molecules is small, significant noise is associated with chemical reaction events. This molecular noise can give rise to behavior that is very different from the predictions of deterministic rate equation models. Unfortunately, there are few analytic methods for examining the qualitative behavior of stochastic systems. Here we describe such a method that extends deterministic analysis to include leading-order corrections due to the molecular noise. The method allows the steady-state behavior of the stochastic model to be easily computed, facilitates the mapping of stability phase diagrams that include stochastic effects and reveals how model parameters affect noise susceptibility, in a manner not accessible to numerical simulation. By way of illustration we consider two genetic circuits: a bistable positive-feedback loop and a negative-feedback oscillator. We find in the positive feedback circuit that translational activation leads to a far more stable system than transcriptional control. Conversely, in a negative-feedback loop triggered by a positive-feedback switch, the stochasticity of transcriptional control is harnessed to generate reproducible oscillations.
description: 6 pages (Supplementary Information is appended)
IMPACTO DA CERTIFICAÇÃO ISO 9000 NO DESEMPENHO DE EMPRESAS DE PEQUENO PORTE DA INDÚSTRIA QUÍMICA PAULISTA
Creators: name: Bacic, Miguel
name: Vannucci, João Carlos Piedade
Publisher: name: Revista de Informação Contábil
Year: 2008
Subjects: Certificação ISO 9000; Desempenho empresarial; Pequenas Empresas.

description: As normas ISO 9000 constituem o guia mais adequado para estabelecer, manter e documentar um sistema de qualidade. Os efeitos da adoção dessas normas tem sido tema de vários estudos e artigos em revistas especializadas. Este trabalho procura verificar se existe relação entre a certificação e a performance empresarial, investigando as pequenas indústrias químicas paulistas que se certificaram nas normas ISO 9000. A hipótese da pesquisa foi que a certificação traz benefícios para as empresas, tais como diminuição dos custos da não qualidade, melhoria na produtividade e nas receitas. Com o objetivo de testar a hipótese foi estudado o desempenho de 28 empresas certificadas e 23 não certificadas, usando como fonte dados financeiros públicos. Adicionalmente foi aplicado um questionário nas empresas certificadas para levantar sua opinião sobre os benefícios obtidos com a certificação. Os resultados aqui obtidos podem auxiliar as empresas e os estudiosos do assunto nas decisões sobre as vantagens ou desvantagens da certificação. Palavras-chave: Certificação ISO 9000; Desempenho empresarial; Pequenas Empresas.
description: Revista de Informação Contábil, v. 2, n. 1 (2008): RIC/UFPE - Revista de Informação Contábil
FATORES DETERMINANTES DO USO DE MÓDULOS CONTÁBEIS EM SISTEMAS DE GESTÃO INTEGRADA
Creators: name: Perez, Gilberto
name: Ramalho, Karen Cristina
name: Misawa, Luciana Misawa
name: Mattos, Rafael Gomes
name: Sousa, Vanderlei Fernando
Publisher: name: Revista de Informação Contábil
Year: 2008
Subjects: Contabilidade Gerencial; ERP; Competitividade.

description: Por meio desta pesquisa se avaliou alguns fatores que definem a utilização de módulos contábeis em sistemas integrados de gestão (Enterprise Resource Planning - ERP). Utilizou-se método quantitativo e pesquisa de natureza exploratória. Para a coleta de dados foi utilizado um questionário com assertivas fechadas, que foi aplicado a uma amostra não probabilística por conveniência, perfazendo um total de 73 respostas de usuários dos sistemas de diversos departamentos. Os dados coletados foram analisados pelo SPSS V15 (Statistical Package for the Social Sciences), por intermédio da análise fatorial. Obteve-se adequação da amostra acima dos níveis estabelecidos e um índice de explicação de 75%, considerado bom para a amostra estudada. Extraíram-se, dentre outros, os fatores Integração Modular e Diferencial Competitivo, o que possibilitou concluir que os sistemas integram as informações internas da organização, e que o uso dos mesmos propicia informações de alta qualidade, essenciais na obtenção de diferenciais de competitividade. Palavras-chave: Contabilidade Gerencial; ERP; Competitividade.
description: Revista de Informação Contábil, v. 2, n. 1 (2008): RIC/UFPE - Revista de Informação Contábil
Strong far field coherent scattering of ultraviolet radiation by holococcolithophores
Creators: name: Quintero-Torres, R.
name: Aragon, J. L.
name: Torres, M.
name: Estrada, M.
name: Cros, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: By considering the structure of holococcoliths (calcite plates that cover holococcolithophores, a haploid phase of the coccolithophore life cycle) as a photonic structure, we apply a discrete dipolar approximation to study the light backscattering properties of these algae. We show that some holococcolith structures have the ability to scatter the ultraviolet (UV) radiation. This property may represent an advantage for holococcolithophores possessing it, by allowing them to live higher in the water column than other coccolithophores.
description: 4 pages and 4 figures
Towards Video Codec Performance Evaluation: A Rate-Energy-Distortion Perspective
Creators: name: Ramasubbu, Geetha
name: Kaup, André
name: Herglotz, Christian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Bjøntegaard Delta rate (BD-rate) objectively assesses the coding efficiency of video codecs using the rate-distortion (R-D) performance but overlooks encoding energy, which is crucial in practical applications, especially for those on handheld devices. Although R-D analysis can be extended to incorporate encoding energy as energy-distortion (E-D), it fails to integrate all three parameters seamlessly. This work proposes a novel approach to address this limitation by introducing a 3D representation of rate, encoding energy, and distortion through surface fitting. In addition, we evaluate various surface fitting techniques based on their accuracy and investigate the proposed 3D representation and its projections. The overlapping areas in projections help in encoder selection and recommend avoiding the slow presets of the older encoders (x264, x265), as the recent encoders (x265, VVenC) offer higher quality for the same bitrate-energy performance and provide a lower rate for the same energy-distortion performance.
description: Proc. 2024 16th International Conference on Quality of Multimedia Experience (QoMEX)
Hierarchical control of a two-piston toroidal blood pump
Creators: name: Gohean, Jeffrey Robert
name: 0000-0002-0583-9003
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Ventricular assist device
Cardiovascular modeling
Physiological control
Variable structure model

description: The two-piston toroidal pump (2PTP) is a new pulsatile pumping paradigm with potential physiological advantages compared to existing continuous flow blood pump technologies. The purpose of this research was to develop hierarchical control methods for this new pumping modality, including high-level physiological control and low-level piston control. First, geometric constraints were identified for this pump architecture and piston path-planning methods were developed to define pulsatile ejections. To develop high-level control, an open-loop lumped parameter model of the cardiovascular system was improved with a modified end-diastolic pressure-volume elastance curve and then used to study ventricular function curves with different types of blood pump support. It was determined that synchronous counterpulse support with the 2PTP provides a more physiological response to preload compared to continuous flow, which could prevent overpumping and ventricular suction at low preloads. To develop low-level piston control, a variable structure model of the 2PTP was developed and then used to test improved control techniques. An algorithmic approach to switched bond graph structures was developed for hydraulic networks to derive state equations for the variable structure model. Linear control and Kalman-filter-based estimation methods were developed with a reduced-order model of the pump. Improved control and estimation methods were tested and confirmed in preliminary experiments in mock circulatory loops. Estimation of pump flow and differential pump pressure were verified, which could be useful feedback to physiological control or as diagnostic tools for doctors.
Editorial
Creators: name: Miranda, Luiz Carlos
Publisher: name: Revista de Informação Contábil
Year: 2011

description: Este é o Número 2 do Volume 5 (Abr-Jun/2011) da RIC – Revista de Informação Contábil. A partir deste número a RIC contará com dois editores, graças à colaboração da Profa. Profa. Juliana Matos de Meira, Ph.D. Ela chegou recentemente de seu doutorado na University of Sheffield, Inglaterra e vem reforçar a Editoria da RIC
description: Revista de Informação Contábil, v. 5, n. 2 (2011): Vol. 5, N. 2 (2011)
Reproducing Experimental Results from "Measuring Item Global Residual Value for Fair Recommendation": A Validation Study
Creators: name: Tiessler, Max
name: AHMETI, ARDIT
name: AGOSTINHO GONÇALVES, MARGARIDA MARIA
name: TÓTH, MÁTÉ
name: GALYNSKAIA, OLESIA
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Data Science
subject: Recommender Systems
subject: Reproducibility of Results

description: This study aims to reproduce the experimental results from Measuring Item Global Residual Value for Fair Recommendation to validateits findings.

The original paper introduced a novel fairness-aware recommendation framework (TaFR) incorporating Global ResidualValue (GRV) for balancing item exposure. Our reproduction followed the original methodology, utilizing NeuMF, GRU4Rec, and TiSASRec models on the MIND dataset.

Due to missing data and incomplete documentation, we reconstructed key preprocessing steps and GRV calculations, managing to implement a completely new end to end pipeline with all the steps required for the experiment, extending what the authors did in their shared code.

Results show that while GRV integration generally improves fairness withoutsacrificing accuracy, some discrepancies with the original findings highlight the challenges of exact reproducibility

In the publication you will find two files:

Reproduction paper

Reproduction package (which is the same as the last github version)

The reproduction pipeline can be found in the package directory TaFR-reproducible. The pipeline can be executed with the reproduction.ipynb file.
title: Bildungsforschung in Luxemburg im Spiegel wissenschaftlicher Publikationen
Creators: name: Dusdal, Jennifer
name: Powell, Justin J. W.
name: Thönnessen, Luisa C.
Publisher: name: Luxembourg Centre for Educational Testing (LUCET) & Service de Coordination de la Recherche et de l’Innovation pédagogiques et technologiques (SCRIPT)
Year: 2021

description: Nationaler Bildungsbericht Luxemburg 2021
Laplace Operator in Networks of Thin Fibers: Spectrum Near the Threshold
Creators: name: Molchanov, S.
name: Vainberg, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35J05, 35P25, 58J37, 58J50

description: Our talk at Lisbon SAMP conference was based mainly on our recent results (published in Comm. Math. Phys.) on small diameter asymptotics for solutions of the Helmgoltz equation in networks of thin fibers. The present paper contains a detailed review of these results under some assumptions which make them much more transparent. It also contains several new theorems on the structure of the spectrum near the threshold. small diameter asymptotics of the resolvent, and solutions of the evolution equation.
Anne Hebert's Le tombeau des rois
Creators: name: McNairn, Laura Jean
Publisher: name: University of British Columbia
Year: 2010

description: During the forties, when Anne Hubert was writing the poems of Le Tombeau des rois Quebec writers and critics (most of whom were male) were consumed by the oppression of the Duplessis era. Hubert's cousin, Hector de Saint-Denys Garneau felt so greatly the pressure to live a life defined by the Other, that his pain not only produced great anguish, but inspired very notable poetry. His metaphor of the French Canadian as a caged bird resurfaces in Hubert's work. In fact, the motif of the bird appears throughout Le Tombeau des rois. The bird as a guide, although blinded, leads the heroine to the place where she must confront death: the tomb. The tomb or cave is, however, not only the place of death, but also of rebirth. The tomb becomes the "womb" of the Mother where sisters and brothers are reborn. Images of sacrifice, of rebirth, reappear constantly in women's literature and mythology. The aim of this thesis is to reinterpret these motifs and others found in Anne Hubert's poetry. It is part of the feminist project to revise the mythology of Patriarchy so that women and women's writing might be 'read' authentically. This approach is an attempt to break down the critical walls which have defined Anne Hubert in a closed, patriarchal way. Anne Hubert was writing while the oppressive forces of the Catholic Church suffocated women and men who were desperately searching out their own identity. Women were defined as either "mothers" or "virgins". Mothers had the responsability to maintain the French language and culture, while unmarried women, were burdened with the guilt of their "evil sex"; women were metaphorically stripped of their flesh so as not to be "temptresses". In Le Tombeau des rois, the heroine is torn between being the "good girl" and breaking free from the "house" which has confined her. Other women writers express the same struggle in their texts. I have attempted to search out some of the images and motifs which connect Anne Hubert to modern women writers, to pick up an intertextual thread which weaves through these texts and connects Hubert's own texts. By making these connections, I have attempted to highlight a hidden subtext, an "ucriture au fuminin" which has been concealed by the dominant criticism of of her work. Traditional critics of Anne Hubert's poems and prose have agreed that this woman has played an important role in the struggle for national identity. That is one interpretation. I have emphasized that women have been doubly exploited, and that Hubert's struggle towards the "feminine" has been hidden beneath the surface of traditional criticism. To crack the calm surface of the status quo, to dive down into the deep, unmapped waters, to follow the thread back to the "womb", is to accompany this author on her quest in Le Tombeau des rois.
ACE: A general-purpose non-Markovian open quantum systems simulation toolkit based on process tensors
Creators: name: Cygorek, Moritz
name: Gauger, Erik M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe a general-purpose computational toolkit for simulating open quantum systems, which provides numerically exact solutions for composites of zero-dimensional quantum systems that may be strongly coupled to multiple, quite general non-Markovian environments. It is based on process tensor matrix product operators (PT-MPOs), which efficiently encapsulate environment influences. The code features implementations of several PT-MPO algorithms, in particular, Automated Compression of Environments (ACE) for general environments comprised of independent modes as well as schemes for generalized spin boson models. The latter includes a divide-and-conquer scheme for periodic PT-MPOs, which enable million time step simulations for realistic models. PT-MPOs can be precalculated and reused for efficiently probing different time-dependent system Hamiltonians. They can also be stacked together and combined to provide numerically complete solutions of small networks of open quantum systems. The code is written in C++ and is fully controllable by configuration files, for which we have developed a versatile and compact human-readable format.
Group amenability properties for von Neumann algebras
Creators: name: Lau, Anthony T.
name: Paterson, Alan L. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 22D10

description: In his study of amenable unitary representations, M. E. B. Bekka asked if there is an analogue for such representations of the remarkable fixed-point property for amenable groups. In this paper, we prove such a fixed-point theorem in the more general context of a $G$-amenable von Neumann algebra $M$, where $G$ is a locally compact group acting on $M$. The Følner conditions of Connes and Bekka are extended to the case where $M$ is semifinite and admits a faithful, semifinite, normal trace which is invariant under the action of $G$.
Dust evolution during the protostellar collapse: influence on the coupling between the neutral gas and the magnetic field
Creators: name: Vallucci-Goy, Valentin
name: Lebreuilly, Ugo
name: Hennebelle, Patrick
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The coupling between the magnetic field and the gas during the collapsing phase of star-forming cores is strongly affected by the dust size distribution, which is expected to evolve. We aim to investigate the influence of key parameters on the evolution of the dust distribution as well as on the magnetic resistivities during the protostellar collapse. We perform collapsing single zone simulations with shark. The code computes the evolution of the dust distribution, accounting for different grain growth and destruction processes. It also computes the magnetic resistivities. We find that the dust distribution significantly evolves during the protostellar collapse, shaping the magnetic resistivities. The peak size of the distribution, the population of small grains and consequently the magnetic resistivities are controlled by both coagulation and fragmentation rates. Under standard assumptions, the small grains coagulate very early as they collide by ambipolar drift, yielding magnetic resistivities orders of magnitude away from the non-evolving dust case. In particular, the ambipolar resistivity η_AD is very high prior to nH=10^10 cm^-3, and as a consequence magnetic braking should be ineffective. In this case, large size protoplanetary disks should result, which is inconsistent with recent observations. To alleviate this tension, we identify mechanisms to reduce the ambipolar resistivity during the protostellar collapse. The most promising are namely: electrostatic repulsion and grain-grain erosion. The evolution of the magnetic resistivities during the protostellar collapse and consequently the shape of the magnetic field in the early life of the protoplanetary disk strongly depends on the possibility to repopulate the small grains or to prevent their early coagulation. Therefore, it is crucial to better constrain the collision outcomes and the dust grain elastic properties.
description: 20 pages, 7 figures, accepted in A&A