cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermal width of heavy quarkonia from an AdS/QCD model
Creators: name: Braga, Nelson R. F.
name: Ferreira, Luiz F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the thermal width of a heavy quark anti-quark pair inside a strongly coupled plasma using a holographic AdS/QCD model. The imaginary part of the quark potential that produces the thermal width appears in the gravity dual from quantum fluctuations of the string world sheet in the vicinity of the horizon. The results, obtained using a soft wall background that involves an infrared mass scale, are consistent with previous analisys where the mass scale was introduced by averaging over quark anti-quark states.
description: In V2: 6 important references added. More details and explanations about the procedure included. Version accepted in Phys. Rev. D
Testing spontaneous wavefunction collapse with quantum electromechanics
Creators: name: Tobar, Germain
name: Forstner, Stefan
name: Fedorov, Arkady
name: Bowen, Warwick P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Theories of spontaneous wavefunction collapse offer an explanation of the possible breakdown of quantum mechanics for macroscopic systems. However, the challenge of resolving predicted collapse signatures above background noise has precluded conclusive tests. Here, we propose to overcome this challenge using a superconducting qubit to precisely readout the collapse-induced heating of a mechanical resonator. We show that the ability to strongly couple the qubit to the resonator can enable both fast measurements and initialization of the qubit close to its ground state. Combined this greatly suppresses the influence of quasiparticle heating of the qubit, which we predict to be the dominant noise source. We find that bulk acoustic wave resonances can amplify the collapse induced heating due to their ultra-low dissipation. Together, this could enable a conclusive test of collapse models.
Diffusive Pseudo-Conformal Mapping: Anisotropy-Free Transformation Thermal Media with Perfect Interface Matching
Creators: name: Dai, Gaole
name: Yang, Fubao
name: Wang, Jun
name: Xu, Liujun
name: Huang, Jiping
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Transformation media provide a fundamental paradigm for field regulation, but their tricky anisotropy challenges fabrication. Though optical conformal mapping has been utilized to eliminate anisotropy, two key factors still hinder its development in thermotics, i.e., the distinct diffusion nature and inevitable interface mismatching. Here, we put forth the concept of diffusive pseudo-conformal mapping, overcoming the inherent difference between diffusion and waves and achieving perfect interface matching. The proposed mapping directly leads to heat guiding and expanding functions with anisotropy-free transformation thermal media, whose feasibility is confirmed by experiments or simulations. Besides diverse applications, we provide a unified perspective for two distinct types of prevailing bilayer cloaks by uncovering their profound ties with pseudo-conformal mapping. These results greatly simplify the preparation of transformation thermotics and have implications for regulating other diffusion and wave phenomena.
Spatial correlation functions for non-ergodic stochastic processes of macroscopic system
Creators: name: Wittmer, J. P.
name: Semenov, A. N.
name: Baschnagel, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Focusing on non-ergodic macroscopic systems we reconsider the variances of time averages time-series. The total variance (direct average over all time-series) is known to be the sum of an internal variance (fluctuations within the meta-basins) and an external variance (fluctuations between meta-basins). It is shown that whenever the time-averaged observable can be expressed as a volume average of a local field the three variances can be written as volume averages of correlation functions with the total correlation function being the sum of an internal and an external correlation function. The dependences of the the different variancescan thus be traced back to the internal and the external correlation function. Various relations are illustrated using lattice spring models with spatially correlated spring constants.
description: 15 pages, 14 figures
Adaptive Re-Ranking with a Corpus Graph
Creators: name: MacAvaney, Sean
name: Tonellotto, Nicola
name: Macdonald, Craig
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Search systems often employ a re-ranking pipeline, wherein documents (or passages) from an initial pool of candidates are assigned new ranking scores. The process enables the use of highly-effective but expensive scoring functions that are not suitable for use directly in structures like inverted indices or approximate nearest neighbour indices. However, re-ranking pipelines are inherently limited by the recall of the initial candidate pool; documents that are not identified as candidates for re-ranking by the initial retrieval function cannot be identified. We propose a novel approach for overcoming the recall limitation based on the well-established clustering hypothesis. Throughout the re-ranking process, our approach adds documents to the pool that are most similar to the highest-scoring documents up to that point. This feedback process adapts the pool of candidates to those that may also yield high ranking scores, even if they were not present in the initial pool. It can also increase the score of documents that appear deeper in the pool that would have otherwise been skipped due to a limited re-ranking budget. We find that our Graph-based Adaptive Re-ranking (GAR) approach significantly improves the performance of re-ranking pipelines in terms of precision- and recall-oriented measures, is complementary to a variety of existing techniques (e.g., dense retrieval), is robust to its hyperparameters, and contributes minimally to computational and storage costs. For instance, on the MS MARCO passage ranking dataset, GAR can improve the nDCG of a BM25 candidate pool by up to 8% when applying a monoT5 ranker.
description: CIKM 2022
Self-similar motion of a Nambu-Goto string
Creators: name: Igata, Takahisa
name: Houri, Tsuyoshi
name: Harada, Tomohiro
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: We study the self-similar motion of a string in a self-similar spacetime by introducing the concept of a self-similar string, which is defined as the world sheet to which a homothetic vector field is tangent. It is shown that in Nambu-Goto theory, the equations of motion for a self-similar string reduce to those for a particle. Moreover, under certain conditions such as the hypersurface orthogonality of the homothetic vector field, the equations of motion for a self-similar string simplify to the geodesic equations on a (pseudo) Riemannian space. As a concrete example, we investigate a self-similar Nambu-Goto string in a spatially flat Friedmann-Lemaître-Robertson-Walker expanding universe with self-similarity and obtain solutions of open and closed strings, which have various nontrivial configurations depending on the rate of the cosmic expansion. For instance, we obtain a circular solution that evolves linearly in the cosmic time while keeping its configuration by the balance between the effects of the cosmic expansion and string tension. We also show the instability for linear radial perturbation of the circular solutions.
description: 19 pages, 1 figure, version to be published in Physical Review D
Weyl nodal ring states and Landau quantization with very large magnetoresistance in square-net magnet EuGa$_4$
Creators: name: Lei, Shiming
name: Allen, Kevin
name: Huang, Jianwei
name: Moya, Jaime M.
name: Wu, Tsz Chun
name: Casas, Brian
name: Zhang, Yichen
name: Oh, Ji Seop
name: Hashimoto, Makoto
name: Lu, Donghui
name: Denlinger, Jonathan
name: Jozwiak, Chris
name: Bostwick, Aaron
name: Rotenberg, Eli
name: Balicas, Luis
name: Birgeneau, Robert
name: Foster, Matthew S.
name: Yi, Ming
name: Sun, Yan
name: Morosan, Emilia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic topological semimetals (TSMs) allow for an effective control of the topological electronic states by tuning the spin configuration, and therefore are promising materials for next-generation electronic and spintronic applications. Of magnetic TSMs, Weyl nodal-line (NL) semimetals likely have the most tunability, and yet they are the least experimentally studied so far due to the scarcity of material candidates. Here, using a combination of angle-resolved photoemission spectroscopy and quantum oscillation measurements, together with density functional theory calculations, we identify the square-net compound EuGa4 as a new magnetic Weyl nodal ring (NR) semimetal, in which the line nodes form closed rings in the vicinity of the Fermi level. Remarkably, the Weyl NR states show distinct Landau quantization with clear spin splitting upon application of a magnetic field. At 2 K in a field of 14 T, the transverse magnetoresistance of EuGa4 exceeds 200,000%, which is more than two orders of magnitude larger than that of other known magnetic TSMs. High field magnetoresistance measurements indicate no saturation up to 40 T. Our theoretical model indicates that the nonsaturating MR naturally arises as a consequence of the Weyl NR state. Our work thus point to the realization of Weyl NR states in square-net magnetic materials, and opens new avenues for the design of magnetic TSMs with very large magnetoresistance.
Taiji Data Challenge for Exploring Gravitational Wave Universe
Creators: name: Ren, Zhixiang
name: Zhao, Tianyu
name: Cao, Zhoujian
name: Guo, Zong-Kuan
name: Han, Wen-Biao
name: Jin, Hong-Bo
name: Wu, Yue-Liang
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The direct observation of gravitational waves (GWs) opens a new window for exploring new physics from quanta to cosmos and provides a new tool for probing the evolution of universe. GWs detection in space covers a broad spectrum ranging over more than four orders of magnitude and enables us to study rich physical and astronomical phenomena. Taiji is a proposed space-based GW detection mission that will be launched in the 2030s. Taiji will be exposed to numerous overlapping and persistent GW signals buried in the foreground and background, posing various data analysis challenges. In order to empower potential scientific discoveries, the Mock LISA Data Challenge and the LISA Data Challenge (LDC) were developed. While LDC provides a baseline framework, the first LDC needs to be updated with more realistic simulations and adjusted detector responses for Taiji's constellation. In this paper, we review the scientific objectives and the roadmap for Taiji, as well as the technical difficulties in data analysis and the data generation strategy, and present the associated data challenges. In contrast to LDC, we utilize second-order Keplerian orbit and second-generation time delay interferometry techniques. Additionally, we employ a new model for the extreme-mass-ratio inspiral waveform and stochastic GW background spectrum, which enables us to test general relativity and measure the non-Gaussianity of curvature perturbations. Furthermore, we present a comprehensive showcase of parameter estimation using a toy dataset. This showcase not only demonstrates the scientific potential of the Taiji Data Challenge but also serves to validate the effectiveness of the pipeline. As the first data challenge for Taiji, we aim to build an open ground for data analysis related to Taiji sources and sciences. More details can be found on the official website at http://taiji-tdc.ictp-ap.org.
description: 15 pages, 3 figures
Second quantization of Leinaas-Myrheim anyons in one dimension and their relation to the Lieb-Liniger model
Creators: name: Posske, Thore
name: Trauzettel, Björn
name: Thorwart, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In one spatial dimension, anyons in the original description of Leinaas and Myrheim are formally equivalent to locally interacting bosons described by the Lieb-Liniger model. This admits an interesting reinterpretation of interacting bosons in the context of anyons. We elaborate on this parallel, particularly including the many-body bound states from the attractive Lieb-Liniger model. In the anyonic context these bound states are created purely by quantum-statistical attraction and coined quantum-statistical condensate, which is more robust than the Bose-Einstein condensate. We introduce the second quantization formalism for the present anyons and construct the generalized Jordan-Wigner transformation that connects them to the bosons of the Lieb-Liniger model.
description: 8 pages, 3 figures. Connection to the Lieb-Liniger model included, title changed compared to version 1
title: Selbstwert und Bewegung
title: Eine empirische Studie zur Förderung des Selbstwertgefühls von Schülern mit Lernbehinderungen durch das Medium Bewegung und eine Analyse möglicher Wirkfaktoren
titleType: AlternativeTitle
Creators: name: Müller, Jürgen Gerhard
Publisher: name: Technische Universität Dortmund
Year: 2012
Subjects: subject: Bewegungserziehung
subject: Fallstudie
subject: Förderschwerpunkt Lernen
subject: Lernbehinderung,
subject: Selbstkonzept
subject: Selbstwertgefühl
subject: Selbstwirksamkeit
subject: Sonderpädagogische Förderung
subject: Sport
subject: Wirkfaktoren
subject: 360
subject: 370

description: Die Arbeit betrachtet die Frage nach der Wirkung von sportorientierter Selbstwertförderung bei Schülern mit Lernbehinderungen. Zudem erfolgt eine Analyse der hierbei zugrunde liegenden Wirkfaktoren. Eine positive Selbstwertschätzung stellt eine wichtige Ressource für die physische und psychische Gesundheit dar und unterstützt die Bewältigung akuter Belastungssituationen. Obwohl Lernbehinderungen nicht notwendigerweise zu ungünstigen Selbstwertschätzungen führen, besteht bei einem Teil der betroffenen Schüler ein erheblicher Förderbedarf. Als besonders geeignet für die Initiierung positiver Selbstwertentwicklung gilt innerhalb der Sonderpädagogik die Förderung durch Bewegung, Sport und Spiel – ohne allerdings über klare Erkenntnisse über die zugrunde liegende Wirkdynamik zu verfügen. In der empirischen Studie, durchgeführt an zwei Förderschulen im Schwerpunkt Lernen, wurde eine sportorientierte Intervention (n=7) mit dem Unterricht im Fach Hauswirtschaft (n=8) verglichen. Zentrales Gestaltungsprinzip in beiden Gruppen war das Anbahnen von Mastery-Erfahrungen im Sinne der Selbstwirksamkeitstheorie. Ein Ziel der Studie ist die Wirkungsüberprüfung beider Interventionen. Neben deskriptiv und statistisch ausgewerteten quantitativen Messungen erfolgt dies durch die inhaltsanalytische Aufbereitung von qualitativen Leitfadeninterviews mit Schülern, Eltern und Lehrern. Die Auswertungen fließen, neben weiteren qualitativen Daten und den Ergebnissen von Verhaltensbeobachtungen, in eine Phänomenanalyse ein. Durch Komparation der Fallstudien (auf Individuums- und Gruppenebene) dient dies der explorativen Analyse von Wirkfaktoren dieser Maßnahmen. Dieser Prozess mündet in einem durch weitere Forschungen zu überprüfenden Modell, in welchem drei Ebenen interventionsunabhängiger Einfluss- und Wirkfaktoren einer gelungenen Selbstwertförderung angenommen werden: Voraussetzungen außerhalb (1. Ebene) und innerhalb (2. Ebene) der Intervention und wirksame Faktoren innerhalb der Maßnahme (3. Ebene) mit dem zentralen Aspekt des Erlebens von Mastery-Erfahrungen, Erfolgen und Anerkennung. Die Arbeit schließt mit Empfehlungen für weitere Forschungen zur Selbstwertentwicklung und -förderung bei Schülern mit Lernbehinderungen ab. Aus der Studie werden Hinweise zur selbstwertdienlichen Unterrichtsentwicklung abgeleitet und auf die traditionelle Beschulung an Förderschulen und die inklusive Beschulung dieser Kinder und Jugendlichen bezogen.
Cluster Formation and Relaxation in Particle Rafts under Uniform Radial Expansion
Creators: name: Tô, Khá-Î
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Particle rafts floating at an air-liquid interface exhibit a variety of behaviors when interfacial flow is introduced. Motivated by previous experimental observations, the failure pattern of particle rafts under uniform radial expansion is reported in this paper. The expansion process is specifically designed to expand the system affinely in the radial direction and to keep the velocity gradient constant throughout. A strong resemblance to the results of particle rafts under uniform uniaxial expansion[1] is found. The size of the cluster emerging as the rafts are pulled apart scales inversely with the pulling velocity. This is a result of two competing velocities: the inter-particle separation speed provided by the flow and a size-dependent relaxation speed for clustering. A model, generalized from a one-dimensional linear (in)stability calculation, is in agreement with the failure morphology found for this radially expanded system. Nonlinear relaxation and particle rearrangement is observed after the initial clustering occurs. This is a feature unique to a two-dimensional system. With its easily accessible particle dynamics at the microscopic level, this system provides insights into the morphology controlled by two competing mechanisms in two or higher dimensions and across different scales.
Melchior von Deschwanden-(Kaiser)-Christen (1800-1885) an Joseph Wolfgang von Deschwanden (1819-1866)
Creators: name: Deschwanden-(Kaiser)-Christen, Melchior von
Publisher: name: [s.n.]
Year: 1839

description: Brief aus Stans.
Mit Briefzusatz von Jos. W. von Deschwanden für die Weiterleitung des Anliegens seines Onkels, adressiert an Hr. Keller, datiert 25.6.1839
Crystal limits of compact semisimple quantum groups as higher-rank graph algebras
Creators: name: Matassa, Marco
name: Yuncken, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Algebra (math.QA)
subject: Operator Algebras (math.OA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary: 20G42, Secondary: 46L67, 17B3

description: Let $O_q[K]$ denote the quantized coordinate ring over the field $\mathbb{C}(q)$ of rational functions corresponding to a compact semisimple Lie group $K$, equipped with its *-structure. Let $A_0$ in $\mathbb{C}(q)$ denote the subring of regular functions at $q=0$. We introduce an $A_0$-subalgebra $O_q^{A_0}[K]$ of $O_q[K]$ which is stable with respect to the *-structure, and which has the following properties with respect to the crystal limit $q \to 0$. The specialization of $O_q[K]$ at each $q$ in $(0,\infty)\setminus\{1\}$ admits a faithful *-representation $π_q$ on a fixed Hilbert space, a result due to Soibelman. We show that for every element $a$ in $O_q^{A_0}K$, the family of operators $π_q(a)$ admits a norm-limit as $q \to 0$. These limits define a *-representation $π_0$ of $O_q^{A_0}K$. We show that the resulting *-algebra $O[K_0]=π_0(O_q^{A_0}[K])$ is a Kumjian-Pask algebra, in the sense of Aranda Pino, Clark, an Huef and Raeburn. We give an explicit description of the underlying higher-rank graph in terms of crystal basis theory. As a consequence, we obtain a continuous field of $C^*$-algebras $(C(K_q))_{q\in[0,\infty]}$, where the fibres at $q = 0$ and $\infty$ are explicitly defined higher-rank graph algebras.
Environmental noise effects on entanglement fidelity of exchange-coupled semiconductor spin qubits
Creators: name: Throckmorton, Robert E.
name: Barnes, Edwin
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effect of magnetic field and charge noise on the generation of entanglement between two Heisenberg exchange-coupled electron spins in a double quantum dot. We focus on exchange-driven evolution that would ideally take an initial unentangled tensor product state to a maximally-entangled state in the absence of noise. The presence of noise obviously adversely affects the attainment of maximal entanglement, which we study quantitatively and exactly. To quantify the effects of noise, we calculate two-qubit coherence times and entanglement fidelity, both of which can be extracted from simulations or measurements of the return probability as a function of interaction time, i.e., the time period during which the exchange coupling remains effective between the two spins. We perform these calculations for a broad range of noise strengths that includes the regime of recent experiments. We find that the two types of noise reduce the amount of entanglement in qualitatively distinct ways and that, although charge noise generally leads to faster decoherence, the relative importance of the two types of noise in entanglement creation depends sensitively on the strength of the exchange coupling. Our results can be used to determine the level of noise suppression needed to reach quantum error correction thresholds. We provide quantitative guidance for the requisite noise constraints necessary to eventually reach the $>99\%$ fidelity consistent with the quantum error correction threshold.
description: 13 pages, 16 figures. Expanded the discussion of our use of the quasistatic bath approximation and added a discussion of the challenges associated with Si as a material platform for quantum dots. This paper is now published in Phys. Rev. B; this is the published version
Memory of perception
Creators: name: Trevethan, Merryn J. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Aggregation and probabilistic verification for data authentication in VANETs
Creators: name: Molina-Gil, J
name: Caballero-Gil, P
name: Caballero-Gil, C
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Vehicular ad-hoc networks, where traffic information is distributed from many sources to many destinations, require data authentication mechanisms to detect any malicious behavior of users, such as modification or replay attacks. In this paper we propose a new data aggregation protocol that uses probabilistic verification to detect such attack attempts a posteriori in an efficient way, with minimal overhead and delay. The algorithm also contains an additional security mechanism based on reactive groups created on demand, which ensure a priori that vehicles generate trustworthy information. According to a comprehensive analysis including both a small-scale real device implementation and NS2 simulations, it is shown that the proposed protocol is robust.
Additional file 1 of Apicoplast ribosomal protein S10-V127M enhances artemisinin resistance of a Kelch13 transgenic Plasmodium falciparum
Creators: name: Kampoun, Tanyaluck
name: Srichairatanakool, Somdet
name: Prommana, Parichat
name: Shaw, Philip J.
name: Green, Judith L.
name: Knuepfer, Ellen
name: Holder, Anthony A.
name: Uthaipibull, Chairat
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: TableS1 Oligonucleotides used to generate guide RNA, primers in PCR analysis ofparasite genetic modification and primers for sequence confirmation.
Effect Of After Sale Services on Customer Satisfaction and Loyalty in Automotive Industry of Ethiopia
Creators: name: Essa, Kindye
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: To be successful, organizations must look into the needs and wants of their customers. Customer satisfaction is important because many researches have shown that customer satisfaction has a positive effect on organization's profitability. Not only the product they purchase can satisfy customers, but also by the service they got from the organization. The main objective of this study is to asses either after sale services that are offered to customers just after the sales stage have an effect on customer satisfaction and loyalty in the automotive industry. Data was collected from 167 after sale service customers through questionnaire, 3 after sale service technician coordinators and 3 foremen at Holland Car PLC and MOENCO respectively, and 1 after sale service manager in each company through interview. The techniques of analysis used in this study are descriptive (frequency, percentage, and mean) and inferential analysis (regression correlation and Chi-square test). Customer satisfaction coefficient formulae were used to measure and quantify the relationships between customer satisfaction and customer requirements as depicted in Kano's model. Results indicate that discovered after sale services (maintenance, spare parts supply, telephone service, warranty, car washing, , and documentation services) has effect on customer satisfaction and loyalty, and after sale service satisfaction and loyalty has positive relationship. In addition different companies provide same after sale service in different way, and the way their offer the service for their customer has a significant difference on the satisfaction of customers. Key words: After sale service; Customer satisfaction; Customer loyalty; Kano model.
Transformer Networks for Predictive Group Elevator Control
Creators: name: Zhang, Jing
name: Tsiligkaridis, Athanasios
name: Taguchi, Hiroshi
name: Raghunathan, Arvind
name: Nikovski, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a Predictive Group Elevator Scheduler by using predictive information of passengers arrivals from a Transformer based destination predictor and a linear regression model that predicts remaining time to destinations. Through extensive empirical evaluation, we find that the savings of Average Waiting Time (AWT) could be as high as above 50% for light arrival streams and around 15% for medium arrival streams in afternoon down-peak traffic regimes. Such results can be obtained after carefully setting the Predicted Probability of Going to Elevator (PPGE) threshold, thus avoiding a majority of false predictions for people heading to the elevator, while achieving as high as 80% of true predictive elevator landings as early as after having seen only 60% of the whole trajectory of a passenger.
title: Lange "Gehirnlaufzeiten" überall?
title: Eine Analyse der Wochenarbeitszeiten von Frauen und Männern unter Berücksichtigkung der Qualifikation in vier Ländern
titleType: AlternativeTitle
Creators: name: Schief, Sebastian
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2003
Subjects: subject: 300
subject: 650

description: Unter dem Stichwort "Lange Gehirnlaufzeiten" thematisiert Bosch (2001) die deutlich längeren durchschnittlichen Wochenarbeitszeiten von höher qualifizierten abhängig Beschäftigten im Vergleich zu Beschäftigten mit niedriger und mittlerer Qualifikation in Deutschland. Der vorliegende Beitrag untersucht anhand der Daten der Europäischen Arbeitskräftestichprobe, ob dieser Zusammenhang auch in anderen europäischen Ländern (Großbritannien, Schweden und Italien) nachzuweisen ist. Wie sich zeigt, sind längere durchschnittliche Arbeitszeiten von höher Qualifizierten in Deutschland, Großbritannien und weniger deutlich in Schweden nachweisbar, in Italien sind sie aber erheblich kürzer als die Wochenarbeitszeit von Beschäftigten mit niedriger bzw. mittlerer Qualifikation. Dies wird auf unterschiedliche Konstellationen der Determinanten der Wochenarbeitszeit in den untersuchten Ländern zurück geführt
description: Arbeit
Optimal waiting time bounds for some flux-saturated diffusion equations
Creators: name: Giacomelli, Lorenzo
name: Moll, Salvador
name: Petitta, Francesco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the Cauchy problem for two prototypes of flux-saturated diffusion equations. In arbitrary space dimension, we give an optimal condition on the growth of the initial datum which discriminates between occurrence or nonoccurrence of a waiting time phenomenon. We also prove optimal upper bounds on the waiting time. Our argument is based on the introduction of suitable families of subsolutions and on a comparison result for a general class of flux-saturated diffusion equations.
description: Comm. Partial Differential Equations, to appear
Ghostly aesthetics : constructing expressionism using existential methods : a studio investigation
Creators: name: Peters, Robert
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Observed polarized scattered light phase functions of planet-forming disks
Creators: name: Ginski, Christian
name: Tazaki, Ryo
name: Dominik, Carsten
name: Stolker, Tomas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Dust particles are the building blocks from which planetary bodies are made. A major goal of the studies of planet-forming disks is to constrain the properties of dust particles and aggregates in order to trace their origin, structure, and the associated growth and mixing processes in the disk. Observations of scattering and/or emission of dust in a location of the disk often lead to degenerate information about the kind of particles, such as size, porosity, or fractal dimension of aggregates. Progress can be made by deriving the full (polarizing) scattering phase function of such particles at multiple wavelengths. This has now become possible by careful extraction from scattered light images. Such an extraction requires knowledge about the shape of the scattering surface in the disk and we discuss how to obtain such knowledge as well as the associated uncertainties. We use a sample of disk images from observations with VLT/SPHERE to, for the first time, extract the phase functions of a whole sample of disks with broad phase angle coverage. We find that polarized phase functions come in two categories. Comparing the extracted functions with theoretical predictions from rigorous T-Matrix computations of aggregates, we show that one category can be linked back to fractal, porous aggregates, while the other is consistent with more compact, less porous aggregates. We speculate that the more compact particles become visible in disks where embedded planets trigger enhanced vertical mixing.
description: Submitted to ApJ with parallel submission to arxiv for logistical reasons; We will update the arxiv submission with the final version once the manuscript was refereed and accepted by ApJ. Data files for all phase functions will be made available once refereeing is concluded. We welcome comments from the community
Small-angle neutron scattering in fully polarized phase of non-collinear magnets with interfacial-like DMI
Creators: name: Utesov, Oleg I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin waves in non-collinear magnets with $C_{nv}$ symmetry are discussed in the context of inelastic neutron scattering in small-angle scattering geometry. In the framework of a minimal model including exchange coupling, Dzayloshinskii-Moriya interaction (DMI), and single-ion anisotropy, we consider the system properties at moderate external magnetic fields and in the high-field fully polarized phase. In the latter case, the magnon spectrum is gapped and non-reciprocal due to DMI with the minimum perpendicular to the field direction for the in-plane field and is ferromagnetic-like for the field along the high-symmetry axis. Inelastic small-angle neutron scattering in the fully polarized phase (SWSANS) is considered in four different geometries. It is shown that analysis of the field dependence of the SWSANS cutoff feature in these geometries allows determining all important parameters of the model. The possibility of the proposed method utilization in thin films with interfacial DMI is also discussed.
description: 9 pages, 2 figures
Die Zukunft der Arbeit als Gestaltungsproblem der Wirtschaftsinformatik
Creators: name: Eversmann, Ludger
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2003
Subjects: subject: 300
subject: 650

description: Einer der Gründerväter der Wirtschaftsinformatik in Deutschland hat 1995 die "Vollautomation des Unternehmens" als langfristiges Wissenschaftsziel der Wirtschaftsinformatik vorgeschlagen. Dieser Vorschlag evoziert a) die - wissenschaftstheoretischen - Fragestellungen nach rationalen, begründbaren und verantwortlichen Formulierungen von Wissenschaftszielen, ferner b) die Frage nach den inhärenten Grenzen der Entwicklungsmöglichkeiten Universaler, berechenbarer Automaten, und schließlich c) die Frage nach Konzepten der Organisation der wirtschaftlichen Mittelbeschaffung unter der Voraussetzung, dass zu deren Herstellung auf (nahezu) unbegrenzte maschinelle Kapazitäten zugegriffen werden kann. In diesem Aufsatz wird über eine Dissertation berichtet, die sich dieser Fragestellungen angenommen hat. Im Ergebnis wird als langfristige Gestaltungsaufgabe der Wirtschaftsinformatik vorgeschlagen, hochproduktive und hochflexible Fertigungssysteme zu entwickeln, die im Auftrage eines privaten, halböffentlichen oder öffentlichen Subjekts unmittelbare Gebrauchswerte produzieren.
description: Arbeit
Solid Waste Management Problems and the Role of Stakeholders: A Case Study on Household Solid Waste Management in Arada Sub-City, Addis Ababa
Creators: name: Ali, Hailemariam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2008

description: Population explosion and the associated anthropogenic activities generate huge amounts of different wastes that adversely affect the physical environment of Addis Ababa City. This situation is not different for Arada Sub-city, which is one of the oldest and the central part of the city, where the concern of this study has focused. The current estimated population of the sub- city is 350,000 people. The sub-city has been established as part and parcel of the city in 2003 and has got a wide range of power and various urban service activities to be provided for the residents. Often a discrepancy exists between the growing population and the increasing demand for the urban services on one hand and the capacity of the local government to provide these services on the other hand. This study has focused on, household solid waste management service delivery, one of the urban services provided by the sub-city and the role of the stakeholders in this particular activity. In this study, both quantitative and qualitative descriptions were used to show the performance of the sub-city in delivery of the household solid waste management service. The role and performance of the sub-city's agent was assessed in terms of the service it provides, institutional and resource capacity, working relations with stakeholders mainly with the MSEs, issues of awareness raising and user participation in the sub-city were attempted to be included. The findings of the study revealed that household solid waste management service in the sub-city is provided below the required quality or has a poor status. According to the survey results, the inadequate organization, lack of material and human resources, unfair distribution of containers, lack of proper support for the private sector, lack of awareness raising and community participation are some of the factors that account for poor solid waste management service delivery in the sub-city. Finally, results of the study indicate that there is so much to be done in order to improve the service provision. Thus, there is a need to create driving motives into the community to use integrated sustainable solid waste management strategies by promoting public- private- partnership in the area of solid waste management service delivery in the sub-city
Organisationales Lernen, zirkuläres Organisieren und die Veränderung der interorganisatorischen Herrschaftsverhältnisse
Creators: name: Wilkesmann, Uwe
name: Romme, A. Georges L.
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2003
Subjects: subject: 300
subject: 650

description: Das Konzept des organisationalen Lernens stellt eine Reaktion auf die neue Bedeutung des Wissens und seine Generierung in Organisationen dar. Allerdings kann neues Wissen in der Regel nur in Gruppen erzeugt werden, die einen weiten Handlungsspielraum besitzen und sich selbst steuern. Die hierarchische Steuerung funktioniert in diesem Fall nicht. Eine Politisierung des Unternehmensalltags ist deshalb möglich. Nicht mehr die klassische Hierarchie, sondern der Mächtigste entscheidet. Das Konzept des zirkulären Organisierens wird als Antwort auf das Problem der Politisierung diskutiert. Mit diesem Prinzip werden Bedingungen der Möglichkeit von Selbstorganisation und von selbststabilisierenden Prozessen der Kooperation benannt, die eine Politisierung des Alltags verhindern.
description: Arbeit
Effect of Pretreated and Anaerobically Digested Microalgae on the Chemical and Biochemical Properties of Soil and Wheat Grown on Fluvisol
Creators: name: Namli, Ayten
name: Akca, Muhittin Onur
name: Perendeci, Nuriye Altinay
name: Yilmaz, Vedat
name: Tastan, Burcu Ertit
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Developmental Biology
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: In this study, the effects of the potential application of digestate as an agricultural fertilizer obtained from anaerobically digested microalgae treated by three pretreatment methods, namely alkaline hydrogen peroxide (AHP), high temperature and pressure (HTP), and hydrodynamic cavitation (HC) on some properties of soil, and wheat growth and yield were investigated. For this purpose, pretreated and anaerobically digested microalgae digestates alone or together with diammonium phosphate (DAP) as a chemical fertilizer were applied to soil for wheat growth. The highest dosage of AHP pretreated digestate combined with a half dose of DAP applied to soil was rich in nutrients as 0.25%N and 7.19 mg kg-1 compared to all groups. The properties of the soils were enhanced by applying the highest dosage (0.06 g kg-1) of microalgae digestate combined with a half dose of DAP. 0.02 g kg-1 dosage of HC pretreated digestate combined with a half dose of DAP also greatly improved nitrogen use efficiency indices by up to 104%. The soils’ enzyme activities increased in wheat growth experiments by applying either raw or pretreated microalgae digestates. The soils’ β-glycosidase, alkaline phosphatase, and urease enzyme activities increased to 1.38 mg pNP g-1 soil, 4.91 mg pNP g-1 soil, and 2.27 mg NH4-N 100 g-1soil respectively by the application of highest dosage of HC pretreated digestate. The digestates did not have a toxic effect on wheat growth, it was determined that applied pretreatment processes did not cause significant changes in wheat plant height or wet and dry weight.
title: Die Arbeit und ihre Beobachter. Anmerkungen zu Dirk Baecker (Hg.): Archäologie der Arbeit
title: Diskurs
titleType: AlternativeTitle
Creators: name: Wolf, Frieder O.
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2003
Subjects: subject: 300
subject: 650

description: Arbeit
Nonparametric tests for constant tail dependence with an application to energy and finance
Creators: name: Bücher, Axel
name: Jäschke, Stefan
name: Wied, Dominik
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: Change-point detection
subject: Multiplier bootstrap
subject: Tail dependence
subject: Weak convergence
subject: 310
subject: 330
subject: 620

description: The present paper proposes new tests for detecting structural breaks in the tail dependence of multivariate time series using the concept of tail copulas. To obtain asymptotic properties, we derive a new limit result for the sequential empirical tail copula process. Moreover, consistency of both the tests and a change-point estimator are proven. We analyze the finite sample behavior of the tests by Monte Carlo simulations. Finally, and crucial from a risk management perspective, we apply the new findings to datasets from energy and financial markets.
description: Discussion Paper / SFB 823;28/2013
Modified Einstein versus Modified Euler for Dark Matter
Creators: name: Bonvin, Camille
name: Pogosian, Levon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Modifications of General Relativity generically contain additional degrees of freedom that can mediate forces between matter particles. One of the common manifestations of a fifth force in alternative gravity theories is a difference between the gravitational potentials felt by relativistic and non-relativistic particles, also known as "the gravitational slip". In contrast, a fifth force between dark matter particles, due to dark sector interaction, does not cause a gravitational slip, making the latter a possible smoking gun of modified gravity. In this article, we point out that a force acting on dark matter particles, as in models of coupled quintessence, would also manifest itself as a measurement of an effective gravitational slip by cosmological surveys of large-scale structure. This is linked to the fact that redshift-space distortions due to peculiar motion of galaxies do not provide a measurement of the true gravitational potential if dark matter is affected by a fifth force. Hence, it is extremely challenging to distinguish a dark sector interaction from a modification of gravity with cosmological data alone. Future observations of gravitational redshift from galaxy surveys can help to break the degeneracy between these possibilities, by providing a direct measurement of the distortion of time. We discuss this and other possible ways to resolve this important question.
description: 13 pages, 2 figures
Discovery and Follow-up Observations of the Young Type Ia Supernova 2016coj
Creators: name: Zheng, WeiKang
name: Filippenko, Alexei V.
name: Mauerhan, Jon
name: Graham, Melissa L.
name: Yuk, Heechan
name: Hosseinzadeh, Griffin
name: Silverman, Jeffrey M.
name: Rui, Liming
name: Arbour, Ron
name: Foley, Ryan J.
name: Abolfathi, Bela
name: Abramson, Louis E.
name: Arcavi, Iair
name: Barth, Aaron J.
name: Bennert, Vardha N.
name: Brandel, Andrew P.
name: Cooper, Michael C.
name: Cosens, Maren
name: Fillingham, Sean P.
name: Fulton, Benjamin J.
name: Halevi, Goni
name: Howell, D. Andrew
name: Hsyu, Tiffany
name: Kelly, Patrick L.
name: Kumar, Sahana
name: Li, Linyi
name: Li, Wenxiong
name: Malkan, Matthew A.
name: Manzano-King, Christina
name: McCully, Curtis
name: Nugent, Peter E.
name: Pan, Yen-Chen
name: Pei, Liuyi
name: Scott, Bryan
name: Sexton, Remington Oliver
name: Shivvers, Isaac
name: Stahl, Benjamin
name: Treu, Tommaso
name: Valenti, Stefano
name: Vogler, H. Alexander
name: Walsh, Jonelle L.
name: Wang, Xiaofeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Type~Ia supernova (SN~Ia) 2016coj in NGC 4125 (redshift $z=0.004523$) was discovered by the Lick Observatory Supernova Search 4.9 days after the fitted first-light time (FFLT; 11.1 days before $B$-band maximum). Our first detection (pre-discovery) is merely $0.6\pm0.5$ day after the FFLT, making SN 2016coj one of the earliest known detections of a SN Ia. A spectrum was taken only 3.7 hr after discovery (5.0 days after the FFLT) and classified as a normal SN Ia. We performed high-quality photometry, low- and high-resolution spectroscopy, and spectropolarimetry, finding that SN 2016coj is a spectroscopically normal SN Ia, but with a high velocity of \ion{Si}{2} $λ$6355 ($\sim 12,600$\,\kms\ around peak brightness). The \ion{Si}{2} $λ$6355 velocity evolution can be well fit by a broken-power-law function for up to a month after the FFLT. SN 2016coj has a normal peak luminosity ($M_B \approx -18.9 \pm 0.2$ mag), and it reaches a $B$-band maximum \about16.0~d after the FFLT. We estimate there to be low host-galaxy extinction based on the absence of Na~I~D absorption lines in our low- and high-resolution spectra. The spectropolarimetric data exhibit weak polarization in the continuum, but the \ion{Si}{2} line polarization is quite strong ($\sim 0.9\% \pm 0.1\%$) at peak brightness.
description: Submitted
Entropy of different phases formed by soft rods
Creators: name: Chattopadhyay, Jayeeta
name: Lin, Shiang-Tai
name: Maiti, Prabal K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Computation of entropy in liquids and liquid crystal phases is a big challenge in statistical physics. In this work, we extend the two-phase thermodynamic model (2PT) to shape anisotropic soft repulsive spherocylinders (SRSs) and report the absolute values of entropy for different liquid crystal (LC) phases for a range of aspect ratios L/D = 2-5. We calculate the density of states (DoS) for different LC phases and decompose it into contributions arising from translational and rotational degrees of freedom. The translational and rotational modes are further partitioned into diffusive, gas-like, and non-diffusive, solid-like components using a fluidicity factor. In the dilute limit, the entropy values obtained from the 2PT method match exactly those of an ideal rigid rotor. We find that, for a given packing fraction, the magnitude of the total entropy is roughly equal regardless of the different LC phases associated with different aspect ratios. We also compute the excess entropy (for L/D = 5) and compare those with the values obtained using the standard integration approach of molecular dynamics (MD) or Monte Carlo (MC) equation of state (EOS) of SRS. The values obtained using both approaches match very well. The rotational and translational fluidicity factors are further used to determine the phase boundaries of different liquid crystal phases for the respective aspect ratios.