cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlation Length, Universality Classes, and Scaling Laws Associated with Topological Phase Transitions
Creators: name: Chen, Wei
name: Legner, Markus
name: Rüegg, Andreas
name: Sigrist, Manfred
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The correlation functions related to topological phase transitions in inversion-symmetric lattice models described by $2\times 2$ Dirac Hamiltonians are discussed. In one dimension, the correlation function measures the charge-polarization correlation between Wannier states at different positions, while in two dimensions it measures the itinerant-circulation correlation between Wannier states. The correlation function is nonzero in both the topologically trivial and nontrivial states, and allows to extract a correlation length that diverges at topological phase transitions. The correlation length and the curvature function that defines the topological invariants are shown to have universal critical exponents, allowing the notion of universality classes to be introduced. Particularly in two dimensions, the universality class is determined by the orbital symmetry of the Dirac model. The scaling laws that constrain the critical exponents are revealed, and are predicted to be satisfied even in interacting systems, as demonstrated in an interacting topological Kondo Insulator.
description: 13 pages, 7 figures
(200621) Clara Bell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: TREASURE – Living Lab Nieuwpoort. Blueprint and Roadmap
Creators: name: Devriese, Lisa
name: Catarino, Ana
name: Moulaert, Ine
name: Van den Auwelant, Charlotte
name: Dhondt, Charlotte
name: Meneses Moreno, Claudia
name: Rondelez, Jelle
name: Everaert, Gert
name: Decrop, Boudewijn
name: Koutrouveli, Theofano
name: Amara, Rachid
name: Maelfait, Hannelore
name: Nitschke, T.
name: Reolofsen, F.
name: Fierens, N.
name: Van Welij, D.
name: Depypere, T.
name: Doyen, P.
name: Depoorter, M.
Publisher: name: Flanders Marine Institute
Year: 2023

description: Title : Volume : Issue : Pagination : 40
(200623) John Berney Drummond
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Asymmetric Error Correction in the Synchronization Tapping Task
Creators: name: Tomyta, Kenta
name: Ohira, Hideki
name: Katahira, Kentaro
Publisher: name: Brill Online
Year: 2023
Subjects: classificationCode: 520406
subject: Sensory processes, perception and performance

description: In synchronization tapping tasks, tapping onset often precedes metronome one by a few tens of milliseconds, which is known as negative mean asynchrony. However, the mechanism by which negative mean asynchrony occurs remains incompletely understood. This study hypothesized that one of the mechanisms was the asymmetric error correction process for asynchrony. We examined this hypothesis using a generalized linear mixed model. The results suggested that the error correction rate for the positive asynchrony was larger than that for the negative asynchrony. This finding may contribute to improving mathematical models of the synchronization tapping task.
The initial boundary value problem for free-evolution formulations of General Relativity
Creators: name: Hilditch, David
name: Ruiz, Milton
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the initial boundary value problem for free-evolution formulations of general relativity coupled to a parametrized family of coordinate conditions that includes both the moving puncture and harmonic gauges. We concentrate primarily on boundaries that are geometrically determined by the outermost normal observer to spacelike slices of the foliation. We present high-order-derivative boundary conditions for the gauge, constraint violating and gravitational wave degrees of freedom of the formulation. Second order derivative boundary conditions are presented in terms of the conformal variables used in numerical relativity simulations. Using Kreiss-Agranovich-Metivier theory we demonstrate, in the frozen coefficient approximation, that with sufficiently high order derivative boundary conditions the initial boundary value problem can be rendered boundary stable. The precise number of derivatives required depends on the gauge. For a choice of the gauge condition that renders the system strongly hyperbolic of constant multiplicity, well-posedness of the initial boundary value problem follows in this approximation. Taking into account the theory of pseudo-differential operators, it is expected that the nonlinear problem is also well-posed locally in time.
description: 21 pages, 2 figures, replaced with the published version
(200627) John Alleyne Holder
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Magnetoanisotropic Josephson effect due to interfacial spin-orbit fields in superconductor/ferromagnet/superconductor junctions
Creators: name: Costa, Andreas
name: Högl, Petra
name: Fabian, Jaroslav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study theoretically the effects of interfacial Rashba and Dresselhaus spin-orbit coupling in superconductor/ferromagnet/superconductor (S/F/S) Josephson junctions---with allowing for tunneling barriers between the layers---by solving the Bogoljubov-de Gennes equation for a realistic heterostructure and applying the Furusaki-Tsukada technique to calculate the electric current at a finite temperature. The presence of spin-orbit couplings leads to out- and in-plane magnetoanisotropies of the Josephson current, which are giant in comparison to current magnetoanisotropies in similar normal-state ferromagnet/normal metal (F/N) junctions. Especially huge anisotropies appear in the vicinity of $ 0 $-$ π$ transitions, caused by the exchange-split bands in the ferromagnetic metal layer. We also show that the direction of the Josephson critical current can be controlled (inducing $ 0 $-$ π$ transitions) by the strength of the spin-orbit coupling and, more crucial, by the orientation of the magnetization. Such a control can bring new functionalities into Josephson junction devices.
description: 20 pages, 24 figures, 1 table
La revelación de arquitecturas a través de su disección axonométrica.
Creators: name: RODRÍGUEZ FERNÁNDEZ, JUAN NTONIO
Publisher: name: Zenodo
Year: 2024
Subjects: dibujo
axonometria
arquitectura
construcción
técnica
perspectiva
diseccion

description: Conocimiento de la forma de arquitectura a través de los procesos constructivos

El objetivo principal del trabajo es paliar la escasez de información completa, pública y accesible sobre los procesos constructivos que en su conjunto definen la morfología de los edificios arquitectónica y socialmente representativos. Esta documentación, por lo general, no está disponible o es escasa, fraccionada y poco clara.

Por tanto, se persigue desvelar lo que es imposible ver, mediante la elaboración de una documentación que permita la comprensión global de los procesos y sistemas constructivos y estructurales que combinados dan como resultado un edificio.

Las fuentes utilizadas en su totalidad son primarias, empleando la documentación elaborada por los diferentes agentes que intervienen en el proceso constructivo, desde la ideación del proyecto hasta la finalización de la obra.

El estudio se basa en una selección internacional de sesenta y seis edificios proyectados, y en su gran mayoría edificados, desde el siglo XVIII hasta principios del siglo XXI.

La materialización del trabajo se ejecuta mediante una técnica gráfica, la axonometría, que, en un único dibujo, o conjunto de ellos, muestra ejecución material de los edificios estudiados permitiendo introducir la cuarta dimensión sobre una representación tridimensional, es decir, el tiempo y orden de elaboración de los procesos.

Como herramientas se han empleado programas de CAD (Computer-Aided Design) y BIM (Building Information Modeling), tanto para el desarrollo tridimensional como la definición bidimensional final.

Como resultado del estudio se han elaborado ciento sesenta y tres axonometrías aglutinadoras de los procesos materiales que conforman los edificios seleccionados de los cuales ciento tres están contenidos en esta tesis doctoral.

Se concluye que la información relativa a los procesos constructivos que permiten entender los edificios se encuentra dispersa y desordenada entre los diferentes autores que intervienen en su creación y que el método desarrollado: recopilación y estudio documental, elaboración de resultados mediante la axonometría, utilizando aplicaciones informáticas específicas, consigue condensar dicha información en un único documento que sintetiza el proceso.
Difference in the Dynamic Scaling Behavior of Droplet Size Distribution for Coalescence under Pulsed and Continuous Vapor Delivery
Creators: name: Adhi, K. P.
name: Khandkar, M. D.
name: Limaye, A. V.
name: Narhe, R. D.
name: Ogale, S. B.
name: Sainkar, S. R.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Determination of the Spin Polarization of Half-Metallic CrO2 by Point Contact Andreev Reflection
Creators: name: Byers, J. M.
name: Chien, C. L.
name: Ji, Y.
name: Strijkers, G. J.
name: Yang, F. Y.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Predictors of presenteeism in pandemic times
Creators: name: Pruschak, Gernot
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Labor Economics
subject: Economics

description: Presenteeism, the act of going to work despite being sick, constitutes a threat to organizations because it puts the health of colleagues at risk. Although previous research has identified determinants of people’s adherence to behavioural restrictions during the COVID-19 pandemic, little is known about presenteeism as a particularly relevant behaviour in pandemic times. Employing a personality-belief perspective on social behaviour, we tested pre-registered hypotheses concerning the relations of personality traits and beliefs concerning situational circumstances with presenteeism using panel (N = 660) and cross-sectional (N = 1,959) survey data assessed between mid-2020 and early 2021 in Denmark. Our results show that a low but constant share of employees continued to engage in presenteeism during the COVID-19 pandemic, and that especially empathy with others is negatively related to presenteeism. We critically discuss the implications of these results for the communication of managers and policymakers in pandemic times to reduce presenteeism and its associated risks.
In-Medium Properties of the D13(1520) Nucleon Resonance
Creators: name: Ahrens, J.
name: Beck, R.
name: Krusche, B.
name: MacGregor, I. J. D.
name: McGeorge, J. C.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
MAX_824143 D10.3 First report on MaX in the European, national, international HPC ecosystems
Creators: name: Neri, Luisa
name: Bartolacelli, Maria
Publisher: name: Zenodo
Year: 2020
Subjects: materials modelling software
HCP
exascale

description: This “First report on MaX in the European, national, international HPC ecosystems” offers an overview of the rich activity of MaX CoE as an actor of the HPC ecosystem at different levels, working to address technical and policy issues of pan-European relevance, and to help overcome the fragmentation of European HPC activities in applications. We describe the interactions MaX had and is having with the different actors in Europe at the HPC level, where we work with the EuroHPC Joint Undertaking, the CoEs ecosystem and Focus CoE, EOSC, ETP4HPC - the European Technology Platform for HPC, EPI - European Processor Initiative, PRACE, and all the main actors playing a role in the HPC realm. MaX plays a leading role in its specific domain of materials research, and has strengthened its long established collaboration with the relevant stakeholders: details on the activity with Psi-k network, CECAM, EMMC, Graphene flagship, Batteries and BIG-MAP initiatives, NFFA, MarketPlace, GO-FAIR, OptiMaDe are given, as well as some other relevant initiatives at national and international level.
(200619) John Green
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Helsinki Initiative on Multilingualism in Scholarly Communication
Creators: name: Pölönen, Janne
Publisher: name: Zenodo
Year: 2023
Subjects: Multilingualism
Scholarly communication
Science communication
Open science
Research assessment

description: Helsinki Initiative on Multilingualism in Scholarly Communication was launched in April 2019 by Federation of Finnish Learned Societies, Committee for Public Information, Finnish Association for Scholarly Publishing, Universities Norway & European Network for Research Evaluation in the Social Sciences and the Humanities. https://doi.org/10.6084/m9.figshare.7887059 This presentation includes the main recommendations of the Helsinki Initiative, evidence of multilingual schoarly and science communication practices, global journal landscape and language biases in assessment, policy work recognizing the importance of multilingualism in open science and responsible research assessment, and key take-aways.
description: Presentation for the Language Council of Norway during their visit at the Federation of Finnish Learned Societies
(200624) Margaret M Bell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Fundamental frequencies and resonances from eccentric and precessing binary black hole inspirals
Creators: name: Lewis, Adam G. M.
name: Zimmerman, Aaron
name: Pfeiffer, Harald P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Binary black holes which are both eccentric and undergo precession remain unexplored in numerical simulations. We present simulations of such systems which cover about 50 orbits at comparatively high mass ratios 5 and 7. The configurations correspond to the generic motion of a nonspinning body in a Kerr spacetime, and are chosen to study the transition from finite mass-ratio inspirals to point particle motion in Kerr. We develop techniques to extract analogs of the three fundamental frequencies of Kerr geodesics, compare our frequencies to those of Kerr, and show that the differences are consistent with self-force corrections entering at first order in mass ratio. This analysis also locates orbital resonances where the ratios of our frequencies take rational values. At the considered mass ratios, the binaries pass through resonances in one to two resonant cycles, and we find no discernible effects on the orbital evolution. We also compute the decay of eccentricity during the inspiral and find good agreement with the leading order post-Newtonian prediction.
description: 40 pages, 15 figures Revised in response to reviewer comments. Figure 12, which previously had been incorrectly computed, is now correct
An examination of the association between equity undervaluation and information risk: the signaling role of earnings quality
Creators: name: Alsadoun, Nasser Mohammed
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The purpose of this thesis is twofold. First it empirically examines the association between the level of undervaluation of a firm’s equity and three information risk proxies including earnings quality, analysts following and dispersion of analysts’ forecasts. Second, given that earnings quality has implications for equity pricing; the thesis examines the association between the level of equity undervaluation and earnings quality in the year post-undervaluation. The empirical evidence provided for the first test clearly indicates that lower earning quality, fewer analysts following and higher dispersion of analysts’ forecast are having a significant and negative impact on the level of equity undervaluation. This is consistent with the proposition that investors are expected to be willing to pay less for a stock that is perceived to have higher information risk, due to increased information asymmetry and agency costs. Unlike the existing literature, these findings indicate that investors price earnings quality, proxied by the absolute magnitude of abnormal accruals, and they are not fooled by reporting higher levels of earnings, as a result of greater earnings management practices. In addition, the empirical findings provided for the second test suggest that greater improvement in earnings quality in the current year (reduction in earnings management practices) is explained by the higher level of equity undervaluation in the preceding year. This result is consistent with the notion that managers of undervalued firms will subsequently improve earnings quality as a signaling mechanism to reduce information risk and change the investors’ perception of their firm’s equity value. Additional tests compare the results of undervalued sample with the results of a control sample (non-undervalued sample), and suggest that the managerial tendency to improve earnings quality in the following year is unique only to undervalued sample. Additional tests were also conducted to capture the impact of the Sarbanes-Oxley Act (SOX) on the final results. Fundamentally, this thesis suggests that higher information risk is expected to provide a tangible detriment for managers in the form of lower equity valuation. In order to mitigate information risk associated with lower earnings quality, the managers of undervalued firms should utilize their discretion over accounting accruals to improve earnings quality, and therefore change investors’ perceptions of their equity value.
Novel Sampling Design for Respondent-driven Sampling
Creators: name: Khabbazian, Mohammad
name: Hanlon, Bret
name: Russek, Zoe
name: Rohe, Karl
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Respondent-driven sampling (RDS) is a method of chain referral sampling popular for sampling hidden and/or marginalized populations. As such, even under the ideal sampling assumptions, the performance of RDS is restricted by the underlying social network: if the network is divided into communities that are weakly connected to each other, then RDS is likely to oversample one of these communities. In order to diminish the "referral bottlenecks" between communities, we propose anti-cluster RDS (AC-RDS), an adjustment to the standard RDS implementation. Using a standard model in the RDS literature, namely, a Markov process on the social network that is indexed by a tree, we construct and study the Markov transition matrix for AC-RDS. We show that if the underlying network is generated from the Stochastic Blockmodel with equal block sizes, then the transition matrix for AC-RDS has a larger spectral gap and consequently faster mixing properties than the standard random walk model for RDS. In addition, we show that AC-RDS reduces the covariance of the samples in the referral tree compared to the standard RDS and consequently leads to a smaller variance and design effect. We confirm the effectiveness of the new design using both the Add-Health networks and simulated networks.
description: 51 pages
An examination of organisational commitment in the temporary agency worker : agency employment context.
Creators: name: Cochrane, Robyn
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The aim of this research is to examine the organisational commitment (OC) of temporary agency workers (TAWs) to their employing agency. This thesis draws on theory and research relevant to nonstandard work and commitment, and uses a cross-¬sectional, mixed-method research design. In the preliminary study, (study 1), semi¬structured interviews are conducted with agency managers and consultants (N=24) to explore TAW OC from the employers' perspective. In the main study (study 2), mail questionnaires (N= 187) are completed by clerical TAWs, as this occupation continues to be a major area for agency and nonstandard work arrangements (Australian Bureau of Statistics, 2009b; Bureau of Labor Statistics, 2005). The theories underpinning the three¬-component model of OC (N.J. Allen & Meyer, 1990a) and subsequent modifications, inform this study's conceptual framework and hypotheses. The findings of this thesis provide five main contributions to research and practice. Firstly, this research shows clerical agency work often involves characteristics typically associated with low level, secondary segment jobs as per dual labour market theorising (Doeringer & Piore, 1971; Piore 1975), although TAWs do not necessarily have low skill or education levels or a transitory relationship with the agency. Secondly, it uncovers a limited range of management policies and practices used by agencies to positively inf1uence TAW OC to agency. Thirdly, this research shows that TAWs report varying levels of OC to agency. Fourthly, the research findings show support for the use of the three-component model of OC in the TAW-agency employment context. The results from the regression analysis indicate support for seven of the 14 hypothesised relationships, and the findings from the content analyses confirm and extend these results. The findings support the theoretical propositions which relate organisational support, job satisfaction, side bets, socialisation experiences, and psychological contracts to the development of TAW OC. The unsupported hypotheses indicate the associations between volition, organisational justice, transferability of skills/experiences, alternative employment opportunities, and the respective components of OC warrant investigation in future research. Finally, there are practical implications for TAW s seeking to proactively manage the TAW-agency employment relationship and agencies seeking to strengthen TAW ~C. The findings could also inform future public policy debates regarding the regulatory approach most suitable for the Australian employment services industry.
(200617) Henry Berney
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Practical sketching algorithms for low-rank matrix approximation
Creators: name: Tropp, Joel A.
name: Yurtsever, Alp
name: Udell, Madeleine
name: Cevher, Volkan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: Data Structures and Algorithms (cs.DS)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 65F30, Secondary 68W20

description: This paper describes a suite of algorithms for constructing low-rank approximations of an input matrix from a random linear image of the matrix, called a sketch. These methods can preserve structural properties of the input matrix, such as positive-semidefiniteness, and they can produce approximations with a user-specified rank. The algorithms are simple, accurate, numerically stable, and provably correct. Moreover, each method is accompanied by an informative error bound that allows users to select parameters a priori to achieve a given approximation quality. These claims are supported by numerical experiments with real and synthetic data.
Untersuchungen zur elektronischen und atomaren Struktur von SiC-Oberflächen
Creators: name: Duda, Lutz
Publisher: name: Universität Dortmund
Year: 2000
Subjects: subject: Siliziumkarbid
subject: SiC
subject: Oberfläche
subject: Rekonstruktion
subject: Geometrische Struktur
subject: Elektronische Bandstruktur
subject: Oberflächenzustand
subject: Winkelaufgelöste Photoemission
subject: Inverse Photoelektronenspektroskopie
subject: Elektronenkorrelation
subject: Mott-Hubbard-Modell
subject: silicon carbide
subject: surface
subject: reconstruction
subject: geometric structure
subject: electronic bandstructure
subject: surface state
subject: angle-resolved photoemission
subject: inverse photoelectron spectroscopy
subject: Electron correlation
subject: Mott-Hubbard-model
subject: 530

description: In der vorliegenden Arbeit wird eine Untersuchung zur Struktur Si-terminierter Siliziumkarbid-Oberflächen vorgestellt. Zum Einsatz kamen dabei verschiedene elektronenspektroskopische Methoden, insbesondere die winkelaufgelöste direkte und die inverse Photoemission. Am Synchrotronstrahlungslabor MAX-Lab in Schweden sind Messungen mit hoher Energie-auflösung an den (2X1)- und c(4X2)-Rekonstruktionen der 3C-SiC(001)-Oberfläche durchgeführt worden. Die Ergebnisse an beiden Oberflächen werden mit theoretischen ab initio Berechnungen der Bandstruktur verglichen und die vorhandenen Modellvorschläge diskutiert. Die gezeigten Untersuchungen an den (Sqrt 3 X Sqrt 3)-R30°- und (3 X 3)-rekonstruierten (0001)-Oberflächen des Polytyps 6H-SiC geben erstmalig Informationen sowohl über die besetzten als auch die unbesetzten Elektronenzustände dieser Oberflächen. Beide Rekonstruktionen sind im Gegensatz zu früheren theoretischen Arbeiten halbleitend. Erst unter Berücksichtigung neuerer Berechnungen, die auf einer Viel-Teilchen-Theorie im Mott-Hubbard-Modell basieren, kann eine gute Übereinstimmung zwischen Experiment und Theorie erzielt werden.
description: Scope of this thesis is the investigation of the structure of Si-terminated silicon carbide surfaces. Different electron spectroscopic methods are used, especially angle-resolved direct and inverse photoemission. High-resolution photoemission measurements of the (2X1)- and c(4X2)-reconstructions of the 3C-SiC(001)-surface were performed at the MAX-Lab synchrotron radiation facility in Sweden. The results of both surfaces are compared to ab initio calculations of the bandstructure and are discussed in relation to the proposed models. The presented investigations of the (Sqrt 3 X Sqrt 3)-R30°- and (3 X 3)-reconstructions of the 6H-SiC(0001) surface give for the first time simultaneous information about the occupied and also about the unoccupied bandstructure. The surface electronic structure of both reconstructions is semiconducting, contrary to earlier theoretical predictions. However, the semiconducting character and the measured bandgap is in good agreement with recent theoretical results, where many-body electron-electron correlation effects are taken into account, leading to a Mott-Hubbard ground state.
First-principles lattice-gas Hamiltonian revisited: O-Pd(100)
Creators: name: Kappus, Wolfgang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The methodology of deriving an adatom lattice-gas Hamiltonian (LGH) from first principles (FP) calculations is revisited. Such LGH cluster expansions compute a large set of lateral pair-, trio-, quarto interactions by solving a set of linear equations modelling regular adatom configurations and their FP energies. The basic assumption of truncating interaction terms beyond fifth nearest neighbors does not hold when adatoms show longer range interactions, e.g. substrate mediated elastic interactions. O-Pd(100) as a popular reference is used to propose a long range elastic interaction alternative including many-body trio- and quarto terms with just 3 parameters fitted to FP calculations. A key feature of the interaction alternative is its analytic nature, allowing statistical methods different from Monte Carlo simulations to derive surface order. The assumptions made are discussed and ways to further verify and apply the model are outlined.
description: 13 pages, The current manuscript (v3) contains only the first part of v2 because the headline does not refer to the second part of v2. The remaining part has been corrected and updated .The second part of v2 has been updated too and will be loaded seperately
(200620) Margaretta Green
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Nationaler Ringvergleich „HF-Leistung im N- und 3,5 mm- Koaxialleiter“ Januar bis Juni 2022 : Vergleichsbericht DKD-V 2-7
Creators: name: Rühaak, Jürgen
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2023
Subjects: DKD-Vergleichsbericht
HF-Leistung
RF power
national interlaboratory comparison

description: Zwischen Januar und Juni 2022 wurde von der Arbeitsgruppe 2.22 der Physikalisch-Technischen Bundesanstalt (PTB) für den Deutschen Kalibrierdienst (DKD) ein nationaler Ringvergleich für die Messgröße Hochfrequenzleistung (HF-Leistung) im N- und 3,5-mm-Verbinder durchgeführt. Für diesen Vergleich sollten die zehn Teilnehmer den Kalibrierungsfaktor und den Betrag und die Phase des Reflexionsfaktors von zwei Leistungsmessköpfen bei jeweils sieben Frequenzen bestimmen. Das Ergebnis zeigt für alle Teilnehmer im Allgemeinen eine gute Übereinstimmung.
Proca Q Tubes and their Coupling to Gravity
Creators: name: Brihaye, Y.
name: Verbin, Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Einstein-Proca system is studied in the case of a complex vector-field self-interacting through an appropriate potential with a global U(1) symmetry. The corresponding equations for a static, cylindrically symmetric metric and matter fields are then constructed and solved. In the probe limit (no gravity), it is shown that the equations admit at least two classes of regular solutions distinguished by the asymptotic behavior of the matter fields. One of these classes corresponds to lumps of vector fields localized in a cylindrical region, we naturally call these solutions "Proca-Q-tubes". They constitute the cylindrical counterparts of spherical Proca-Q-balls constructed recently, they can be characterized by finite mass and charge per unit-length of the tube. The domain of existence of these Proca-Q-tubes with respect to the coupling constants determining the potential is studied in detail. Finally, the gravitating Proca-Q-tubes are constructed and studied.
description: Revised version: discussions expanded and references added. Note also some sign changes wrt previous version; to appear on Phys. Rev. D; 15 pages
Joint optimization of multiple responses based on loss functions
Creators: name: Erdbrügge, Martina
name: Kuhnt, Sonja
name: Rudak, Nikolaus
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: Different weight matrix
subject: Loss function
subject: Multiple response
subject: Pareto optimality
subject: Penalty matrix
subject: 310
subject: 330
subject: 620

description: Most of the existing methods for the analysis and optimization of multiple responses require some kind of weighting of these responses, for instance in terms of cost or desirability. Particularly at the design stage, such information is hardly available or will rather be subjective. Kuhnt and Erdbrugge (2004) present an alternative strategy using loss functions and a penalty matrix which can be decomposed into a standardizing (data-driven) and a weight matrix. The effect of different weight matrices is displayed in joint optimization plots in terms of predicted means and variances of the response variables. In this article, we propose how to choose weight matrices for two and more responses. Furthermore we prove the Pareto optimality of every point that minimizes the conditional mean of the loss function.
description: Discussion Paper / SFB 823 ; 10/2011
(200622) Robert Miller Bell
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A mobile crowdsensing app for improved maritime security and awareness - Percom 2022 - Demo Session
Creators: name: Moroni, Davide
name: Pieri, Gabriele
name: Reggiannini, Marco
name: Tampucci, Marco
Publisher: name: Zenodo
Year: 2022
Subjects: Crowd-sensing
Volunteered Geographic Information (VGI)
Citizen Science
Oil spill
Pollution
Maritime security and safety

description: The marine and maritime domain is well represented in the Sustainable Development Goals (SDG) envisaged by the United Nations, which aim at conserving and using the oceans, seas and their resources for sustainable development. At the same time, there is a need for improved safety in navigation, especially in coastal areas. Up to date, there exist operational services based on advanced technologies, including remote sensing and in situ monitoring networks which provide aid to the navigation and control over the environment for its preservation. Yet, the possibilities offered by crowdsensing have not yet been fully explored. This paper addresses this issue by presenting an app based on a crowdsensing approach for improved safety and awareness at sea. The app can be integrated into more comprehensive systems and frameworks for environmental monitoring as envisaged in our future work.
Minimax Filter: Learning to Preserve Privacy from Inference Attacks
Creators: name: Hamm, Jihun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Preserving privacy of continuous and/or high-dimensional data such as images, videos and audios, can be challenging with syntactic anonymization methods which are designed for discrete attributes. Differential privacy, which provides a more formal definition of privacy, has shown more success in sanitizing continuous data. However, both syntactic and differential privacy are susceptible to inference attacks, i.e., an adversary can accurately infer sensitive attributes from sanitized data. The paper proposes a novel filter-based mechanism which preserves privacy of continuous and high-dimensional attributes against inference attacks. Finding the optimal utility-privacy tradeoff is formulated as a min-diff-max optimization problem. The paper provides an ERM-like analysis of the generalization error and also a practical algorithm to perform the optimization. In addition, the paper proposes an extension that combines minimax filter and differentially-private noisy mechanism. Advantages of the method over purely noisy mechanisms is explained and demonstrated with examples. Experiments with several real-world tasks including facial expression classification, speech emotion classification, and activity classification from motion, show that the minimax filter can simultaneously achieve similar or better target task accuracy and lower inference accuracy, often significantly lower than previous methods.
description: Revision 2: minor revision
Amtliche Mitteilungen der Universität Dortmund Nr. 03/2007
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2007
Subjects: subject: 080

description: Amtlicher Teil: Institutsordnung für das Kulturwissenschaftliche Institut (KWI) der Ruhr-Universität Bochum, der Universität Dortmund und der Universität Duisburg-Essen
description: Nichtamtlicher Teil: Verlust eines Dienstsiegels
description: Amtliche Mitteilungen der Universität Dortmund ; 3, 2007
On similarity of jet quenching and charmonia suppression
Creators: name: Spousta, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We quantify the magnitude of the parton energy loss in jets in lead-lead collisions at the LHC. We extract the effective color factor characterizing the difference between the in-medium radiation of quark-initiated jets and gluon-initiated jets from the data. Then, we examine the energy loss of prompt charmonia and we point to a remarkable similarity between the quenching of light-quark-initiated jets and the prompt charmonia suppression. Finally, we discuss possible sources of this similarity.
description: 8 pages, 3 figures, v3 fixes a typo in table 1
Symmetry and decay of traveling wave solutions to the Whitham equation
Creators: name: Bruell, Gabriele
name: Ehrnström, Mats
name: Pei, Long
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q53, 35B06, 35B40, 35S30, 45K05

description: This paper is concerned with decay and symmetry properties of solitary wave solutions to a nonlocal shallow water wave model. It is shown that all supercritical solitary wave solutions are symmetric and monotone on either side of the crest. The proof is based on a priori decay estimates and the method of moving planes. Furthermore, a close relation between symmetric and traveling wave solutions is established.
Die Open Access Policy der Kulturerbe-Einrichtungen in Hessen und ihre Folgen
Creators: name: Bulle, Klaus
Publisher: name: Zenodo
Year: 2023
Subjects: Open Access
Open Data
OpenGLAM
FAIR principles
Hessen

description: Ende 2021 unterzeichneten rund 20 hessische Landeseinrichtungen aus dem GLAM-Bereich die „Open Access Policy der Kulturerbe-Einrichtungen in Hessen“ (DOI: 10.17192/es2021.0029). Sie verpflichten sich damit zum freien digitalen Zugang zu Werken der materiellen und immateriellen Kultur. Das Hessische Ministerium für Wissenschaft und Kunst unterstützte das Projekt zur Entwicklung der Open Access Policy sowie eines zugehörigen Praxisleitfadens nicht nur mit einer großzügigen Förderung, sondern auch in inhaltlicher Verbindung mit dem zeitgleich entworfenen „Masterplan Kultur Hessen“. Auf der Basis der Projektergebnisse erschien im Frühjahr 2023 eine geänderte Fassung der Verwaltungskostenordnung des Ministeriums, die es allen hessischen Landeseinrichtungen ermöglicht, die Nutzung ihrer digitalen Ressourcen so offen wie möglich zu gestalten. So etwa ist die Nutzung und Weiterverwendung von im Internet veröffentlichten Reproduktionen zu nicht-kommerziellen Zwecken seit Anfang März 2023 gebührenfrei. Mitglieder der AG Digitalisierung, die im Herbst 2018 auf Anregung des Ministeriums als spartenübergreifende Arbeitsgruppe landesweit eingerichtet wurde, beteiligten sich an der Entwicklung der Open Access Policy innerhalb des an den Universitäten Marburg und Darmstadt angesiedelten Projekts, mit juristischer Unterstützung von Prof. Dr. Ellen Euler und Prof. Dr. Paul Klimpel. Der Vortrag zeichnet die Entwicklungsschritte nach und illustriert, wie es gelang, wesentliche Forderungen der „Berliner Erklärung über den offenen Zugang zu wissenschaftlichem Wissen“ von 2003 in konkrete Handlungsempfehlungen für den Kulturerbe-Bereich umzusetzen und in der Verwaltungskostenordnung des Ministeriums fest zu verankern. Wir gehen im Vortrag nicht nur auf die Projektdurchführung ein, sondern präsentieren auch, welche praktischen Schritte die Kulturerbe-Einrichtungen seit der Unterzeichnung der Open Access Policy in Richtung offener Zugang bereits unternommen haben und welche operativen und informationstechnischen Herausforderungen noch zu meistern sind.
description: This is my first upload to Zenodo. Please condone any misconduct ...
Gestion du traitement de l’air pour les pratiques en développement de chirurgie « au cabinet » ou « office-based surgery »
Creators: name: Laudinet, Nicolas
name: Hartemann, Philippe
Publisher: name: Health & Co
Year: 2022
Subjects: Acte chirurgical
Structure de soins ambulatoires
Cabinet de ville
Risque infectieux
Analyse préliminaire des risques
Gestion de l’environnement
Purificateurs d’air
Contrôle de la qualité de l’air

description: Avec l’ambition stratégique française de continuer à développer le taux de chirurgie ambulatoire, le recours croissant à des centres indépendants et à la pratique en cabinet est envisagé. Pour y maîtriser le risque infectieux, le niveau d’environnement technique pourra être défini graduellement par une analyse des risques spécifique conduite par acte et par modalité anesthésique. La nécessité et les objectifs d’un traitement de l’air notamment, seront à considérer dans cette approche.
Vibrationally resolved B 1s photoionization cross section of BF3
Creators: name: Ayuso, David
name: Kimura, M.
name: Kooser, Kuno
name: Patanen, Minna
name: Plésiat, Étienne
name: Argenti, Luca
name: Mondal, S.
name: Travnikova, Oksana
name: Sakai, K.
name: Palacios Cañas, Alicia
name: Kukk, E.
name: Decleva, P.
name: Ueda, K.
name: Martín García, Fernando
name: Miron, Catalin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: 530 Physik

description: We present a study of the vibrationally resolved B 1s photoionization cross section of the BF3 molecule. A combination of high-resolution photoelectron spectroscopy measurements and of state-of-the-art calculations shows the evolution of the photon energy dependence of the cross section from a complete trapping of the photoelectron wave (low energies) to oscillations due to intramolecular scattering. These diffraction patterns allow to access structural information of both the neutral molecule and the core -hole species generated upon photoabsoption.
title: Ein Pflichtenheft für digitale Archive?
title: Ergebnisse der RLG-OCLC-Arbeitsgruppe
titleType: AlternativeTitle
Creators: name: Dörr, Marianne
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 020

description: Digitale Langzeitarchivierung stellt Bibliotheken und Archive vor neue Herausforderungen für die Erhaltung und die langfristige Verfügbarkeit unseres kulturellen Erbes. Die digitale Welt birgt viel stärker als bei den traditionellen Printmedien die Gefahr des völligen und endgültigen Informationsverlusts in sich, wenn nicht rechtzeitig gehandelt wird. Ein Verständnis der Rahmenbedingungen digitaler Archivierung und der Verantwortungen und Pflichten, die damit auf eine Institution zukommen, ist deshalb unbedingt notwendig, um sich angemessen auf die neu Aufgabe vorzubereiten und strategische Kooperationspartner zu gewinnen. Eine international besetzte Arbeitsgruppe der großen amerikanischen Bibliotheksverbünde RLG und OCLC hat versucht, die grundsätzlichen Anforderungen und die konkreteren Maßnahmen zusammenzustellen. Der Vortrag gibt einen auf dem Bericht basierenden Überblick über die Anforderungen, mit denen sich ein digitales Langzeitarchiv konfrontiert sieht.