cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CESSDA Tips for Trainers
Creators: name: Leenarts, Ellen
name: Braukmann, Ricarda
name: Van den Eynden, Veerle
Publisher: name: Zenodo
Year: 2019
Subjects: CESSDA
Data management
Data sharing
Data archive
Training resources
Open Science

description: Presentation on Tips for Trainers presented during the Open Science and Research Data Management Train-the-Trainer Bootcamp, organized by FOSTER, CESSDA, ELIXIR and DANS on 17 April 2019 in the Hague, The Netherlands. The bootcamp was for people supporting researchers in Open Science and Research Data Management (RDM) and looking for ways to make their training more effective. The event gave an overview of different European Open Science and RDM training and learning resources.
A note on infinite antichain density
Creators: name: Balister, Paul
name: Powierski, Emil
name: Scott, Alex
name: Tan, Jane
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $\mathcal{F}$ be an antichain of finite subsets of $\mathbb{N}$. How quickly can the quantities $|\mathcal{F}\cap 2^{[n]}|$ grow as $n\to\infty$? We show that for any sequence $(f_n)_{n\ge n_0}$ of positive integers satisfying $\sum_{n=n_0}^\infty f_n/2^n \le 1/4$, $f_{n_0}=1$ and $f_n\le f_{n+1}\le 2f_n$, there exists an infinite antichain $\mathcal{F}$ of finite subsets of $\mathbb{N}$ such that $|\mathcal{F}\cap 2^{[n]}| \geq f_n$ for all $n\ge n_0$. It follows that for any $\varepsilon>0$ there exists an antichain $\mathcal{F}\subseteq 2^\mathbb{N}$ such that $$\liminf_{n \to \infty} |\mathcal{F}\cap 2^{[n]}| \cdot \left(\frac{2^n}{n\log^{1+\varepsilon} n}\right)^{-1} > 0.$$ This resolves a problem of Sudakov, Tomon and Wagner in a strong form, and is essentially tight.
description: Minor correction: added condition that $f_{n_0}=1$ to the statement of Theorem 3, 6 pages
Quête des oeufs et victuailles le soir du Samedi Saint, place des Neuf Jets. Chant du "goigs dels ous"
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
¿Por qué investigar en ciencias sociales y humanidades?
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2022
Subjects: Ciencias
Sociales
Ecuador
Futuro
Derechos
Humanos
Comunicación

description: Presentación en las Jornadas de Investigación Aplicadas a las Ciencias Sociales y Humanas organizadas por la Escuela de Ciencias Sociales y Humanas de la Pontificia Universidad Católica del Ecuador, sede Ibarra.
Uncertainty-of-Information Scheduling: A Restless Multi-armed Bandit Framework
Creators: name: Chen, Gongpu
name: Liew, Soung Chang
name: Shao, Yulin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper proposes using the uncertainty of information (UoI), measured by Shannon's entropy, as a metric for information freshness. We consider a system in which a central monitor observes multiple binary Markov processes through a communication channel. The UoI of a Markov process corresponds to the monitor's uncertainty about its state. At each time step, only one Markov process can be selected to update its state to the monitor; hence there is a tradeoff among the UoIs of the processes that depend on the scheduling policy used to select the process to be updated. The age of information (AoI) of a process corresponds to the time since its last update. In general, the associated UoI can be a non-increasing function, or even an oscillating function, of its AoI, making the scheduling problem particularly challenging. This paper investigates scheduling policies that aim to minimize the average sum-UoI of the processes over the infinite time horizon. We formulate the problem as a restless multi-armed bandit (RMAB) problem, and develop a Whittle index policy that is near-optimal for the RMAB after proving its indexability. We further provide an iterative algorithm to compute the Whittle index for the practical deployment of the policy. Although this paper focuses on UoI scheduling, our results apply to a general class of RMABs for which the UoI scheduling problem is a special case. Specifically, this paper's Whittle index policy is valid for any RMAB in which the bandits are binary Markov processes and the penalty is a concave function of the belief state of the Markov process. Numerical results demonstrate the excellent performance of the Whittle index policy for this class of RMABs.
description: 28 pages, 5 figures
Aperiodic Communication for MPC in Autonomous Cooperative Landing
Creators: name: Lapandić, Dženan
name: Persson, Linnea
name: Dimarogonas, Dimos V.
name: Wahlberg, Bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper investigates the rendezvous problem for the autonomous cooperative landing of an unmanned aerial vehicle (UAV) on an unmanned surface vehicle (USV). Such heterogeneous agents, with nonlinear dynamics, are dynamically decoupled but share a common cooperative rendezvous task. The underlying control scheme is based on distributed Model Predictive Control (MPC). The main contribution is a rendezvous algorithm with an online update rule of the rendezvous location. The algorithm only requires the agents to exchange information when they can not guarantee to rendezvous. Hence, the exchange of information occurs aperiodically, which reduces the necessary communication between the agents. Furthermore, we prove that the algorithm guarantees recursive feasibility. The simulation results illustrate the effectiveness of the proposed algorithm applied to the problem of autonomous cooperative landing.
description: 6 pages, 6 figures, This work has been presented at 7th IFAC Conference on Nonlinear Model Predictive Control 2021
Grande crécelle, appelée "patric-patroc", dans le clocher de l'église de Prats-de-Mollo-la-Preste
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
CESSDA Metadata Office – status quo, future developments & special focus on CMM [Webinar report]
Creators: name: Borschewski, Kerrin
Publisher: name: Zenodo
Year: 2020
Subjects: CESSDA Metadata Office (MDO)
CESSDA Metadata Model (CMM)
Data Documentation Initiative (DDI)
European Language Social Science Thesaurus (ELSST)
CESSDA Vocabulary Service (CVS)
DDI Profiles
CESSDA Metadata Validator (CMV)

description: This report summarizes the relevant information on the CESSDA Metadata Office webinar as an additional written record to the video recording. The “Webinar of the CESSDA Metadata Office – status quo, future developments & special focus on CMM” was conducted on the 6th of May 2020. The first section of the report contains overview information on the webinar. The second part provides details on the content that was presented during the webinar. The third part captures questions and comments of attendees, as well as the responses to those questions. Section number four comprises further reading proposals. This is a Deliverable D2b: Report on the webinar of the CESSDA 2020 Work Plan Task "CESSDA Metadata Office (MDO) Task 1".
Misteri de Jésus au tombeau déposé dans l'église de Prats-de-Mollo après la procession qui a eu lieu le 12 avril
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
A single parameterization for dark energy and modified gravity models
Creators: name: Jaber, Mariana
name: Arciniega, Gustavo
name: Jaime, Luisa G.
name: Rodríguez-López, Omar A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Perhaps the most explored hypothesis for the accelerated cosmic expansion rate arises in the context of extra fields or modifications to General Relativity. A prevalent approach is to parameterize the expansion history through the equation of state, $ω(z)$. We present a parametric form for $ω(z)$ that can reproduce the generic behavior of the most widely used physical models for accelerated expansion with infrared corrections. The present proposal has at most 3 free parameters which can be mapped back to specific archetypal models for dark energy. We analyze in detail how different combinations of data can constrain the specific cases embedded in our form for $ω(z)$. We implement our parametric equation for $ω(z)$ to observations from CMB, the luminous distance of SNeIa, cosmic chronometers, and baryon acoustic oscillations identified in galaxies and in the Lymann-$α$ forest. We find that the parameters can be well constrained by using different observational data sets. Our findings point to an oscillatory behavior consistent with an $f(R)$-like model or an unknown combination of scalar fields. When we let the three parameters vary freely, we find an EoS which oscillates around the phantom-dividing line, and, with over 99$\%$ of confidence, the cosmological constant solution is disfavored.
description: 18 figures, two tables, 22 pages. Accepted version for publication in Physics of the Dark Universe. One section and one appendix were added
Vue générale de Prats-de-Mollo, prise du clocher de l'église
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Three-pot household water treatment system: Testing the effectiveness
Creators: name: Chegkazi, Katerina
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 90509 Water Resources Engineering
subject: FOS: Civil engineering

description: Water is one of the basic human needs, crucial for survival. Although two-thirds of the earth’s surface is covered by water, only 2% of it is fresh water (Reed, 2012, p. 1.2), potentially suitable for human needs. This small amount is often contaminated and in addition the world’s overpopulation, industrialization and climate change exacerbate the global water shortages (Jones, 1997, p.2). It is commonly reported that 1,1 billion people lack access to safe drinking water. The fact that 2.6 billion people lack adequate access to sanitation as well, is a proof of why water is so often contaminated with faecal matter, thus why 1.8 million people die every year from diarrhoeal diseases (figures from: HWTS Network, 2007, p. 7). One of the Millennium Development Goals (MDGs), target 7C, was to halve by 2015 the proportion of the population without sustainable access to safe drinking water and basic sanitation facilities. Recently, that target of water was reported to have been reached already (UN, 2012). In spite of the proportion being halved, that still leaves the rest half without safe water, which is millions of people. “The lack of access to water and sanitation still for millions of people is the greatest development failure of modern era” (CIWEM, 2012, p. 1). So the battle to minimize the figure of people without access to safe water or to promote further development is an on-going long-term goal, even when the intermediary targets, like the MDGs, are achieved.....
Repeated Integration and Explicit Formula for the $n$-th Integral of $x^m (\ln x)^{m'}$
Creators: name: Haddad, Roudy El
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 26A36 (Primary) 26A06, 97I50, 11M32, 11P99 (Secondary)

description: Repeated integration is a major topic of integral calculus. In this article, we study repeated integration. In particular, we study repeated integrals and recurrent integrals. For each of these integrals, we develop reduction formulae for both the definite as well as indefinite form. These reduction formulae express these repetitive integrals in terms of single integrals. We also derive a generalization of the fundamental theorem of calculus that expresses a definite integral in terms of an indefinite integral for repeated and recurrent integrals. From the recurrent integral formulae, we derive some partition identities. Then we provide an explicit formula for the $n$-th integral of $x^m(\ln x)^{m'}$ in terms of a shifted multiple harmonic star sum. Additionally, we use this integral to derive new expressions for the harmonic sum and repeated harmonic sum.
description: 28 pages
Église d'Arles-sur-Tech. "Rollier" dans le chœur
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Neutron Interferometry and axion like particles
Creators: name: Capolupo, Antonio
name: Giampaolo, Salvatore Marco
name: Quaranta, Aniello
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a method to reveal axions and axion-like particles based on interferometric measurement of neutron beams. We consider an interferometer in which the neutron beam is split in two sub-beams propagating in regions with differently oriented magnetic fields. The beam paths and the strength of the magnetic fields are set in such a way that all the contributions to the phase difference but the one due to axion-induced interactions are removed. The resulting phase difference is directly related to the presence of axions. Our results show that such a phase is in principle detectable with neutron interferometry, possibly proving the existence of axions and axion-like particles.
description: 5 pages, 4 figures
Joueurs de pelote jouant au pied du rempart de Prats-de-Mollo-la-Preste
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
แบบจำลองความสัมพันธ์เชิงสาเหตุการสืบทอดทายาททางธุรกิจของธุรกิจครอบครัวในประเทศไทย
Creators: name: ปิยภรณ์ ชูชีพ
Publisher: name: มหาวิทยาลัยรังสิต
Year: 2563
Subjects: การสืบทอดทายาททางธุรกิจ, การเป็นผู้นำของผู้ประกอบการ, การกำกับดูแลธุรกิจครอบครัว, การจัดการความสามารถ, ประสิทธิภาพขององค์การ

description: วารสารรังสิตบัณฑิตศึกษาในกลุ่มธุรกิจและสังคมศาสตร์, 6, 2, หน้า 73-94
Transport and spectroscopic signatures of a disorder-stabilized metal in two-dimensional frustrated Mott insulators
Creators: name: Karmakar, Madhuparna
name: Swain, Nyayabanta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Frustrated Mott insulators such as transition metal dichalcogenides present an ideal platform for the experimental realization of externally tuned insulator-metal transition. In this paper, we present the first nonperturbative numerical investigation of the disorder-induced insulator-metal transition in a two-dimensional frustrated Mott insulator. Our approach is generic and captures the essential physics of Mott insulator-metal transition in geometrically frustrated lattices. For concreteness, we have compared our results with the experimental observations on copper (Cu) intercalated 1T-TaS2. Based on the magnetic, spectroscopic, and transport signatures, we have mapped out the thermal phase diagram of Cu intercalated 1T-TaS2 and established that over a regime of moderate disorder strength this material hosts an antiferromagnetic metal. Moreover, the insulator-metal transition in this system is not tied to the loss of magnetic correlations, thereby giving rise to two quantum critical points. The emergent non-Fermi liquid metal is governed by resilient quasiparticles, that survive as the relevant low energy excitations even after the break down of the Fermi liquid description. The transport and spectroscopic signatures discussed in this paper are expected to serve as important benchmarks for future experiments on this and related class of materials.
description: 13 pages, 13 figures
Quête des oeufs et victuailles le soir du Samedi Saint. Arrivée des quêteurs place des Neuf Jets.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Remarks on Einstein solitons with certain types of potential vector field
Creators: name: Blaga, Adara M.
name: Latcu, Dan Radu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We consider almost Einstein solitons $(V,λ)$ in a Riemannian manifold when $V$ is a gradient, a solenoidal or a concircular vector field. We explicitly express the function $λ$ by means of the gradient vector field $V$ and illustrate the result with suitable examples. Moreover, we deduce some geometric properties when the Ricci curvature tensor of the manifold satisfies certain symmetry conditions.
Varieties of contextuality based on probability and structural nonembeddability
Creators: name: Svozil, Karl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Different analytic notions of contextuality fall into two major groups: probabilistic and strong notions of contextuality. Kochen and Specker's Theorem~0 is a demarcation criterion for differentiating between those groups. Whereas probabilistic contextuality still allows classical models, albeit with nonclassical probabilities, the logico-algebraic "strong" form of contextuality characterizes collections of quantum observables that have no faithfully embedding into (extended) Boolean algebras. Both forms indicate a classical in- or under-determination that can be termed "value indefinite" and formalized by partial functions of theoretical computer sciences.
description: 12 pages, 3 figures, 2 tables, final version
A framework for studying transients in marine metapopulations
Creators: name: Harrington, Peter D.
name: Lewis, Mark A.
name: Driessche, P. van den
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Dynamical Systems (math.DS)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: 92D25, 92D40, 34A30, 34C11

description: Transient dynamics can often differ drastically from the asymptotic dynamics of systems. In this paper we provide a unifying framework for analysing transient dynamics in marine metapopulations, from the choice of norms to the addition of stage structure. We use the $\ell_1$ norm, because of its biological interpretation, to extend the transient metrics of reactivity and attenuation to marine metapopulations, and use examples to compare these metrics under the more commonly used $\ell_2$ norm. We then connect the reactivity and attenuation of marine metapopulations to the source-sink distribution of habitat patches and demonstrate how to meaningfully measure reactivity when metapopulations are stage-structured.
description: 34 pages, 11 figures
Dans l'église, bas-relief peint et plaque corporative polychrome
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
อัตลักษณ์สตรีนิเวศนิยมกับการอนุรักษ์สิ่งแวดล้อม
Creators: name: จงกล ลิ่วเวหา ภัทรโภคินภิบาล
Publisher: name: มหาวิทยาลัยรังสิต
Year: 2563
Subjects: สตรีนิเวศนิยม, อัตลักษณ์, สิ่งแวดล้อม

description: วารสารรังสิตบัณฑิตศึกษาในกลุ่มธุรกิจและสังคมศาสตร์, 6, 2, หน้า 95-105
Eine musterbasierte Kontrollflusssemantik zur interaktiven Simulation von Geschäftsprozessmodellen
Creators: name: Drescher, Andreas
Publisher: name: Karlsruhe
Year: 2018
Subjects: Modellierungssprachen
Kontrollflussmuster
Kontrollflusssemantik
Simulation

description: Für die Modellierung von Geschäftsprozessen existieren eine Vielzahl von Modellierungssprachen, die allerdings häufig eine unpräzise Kontrollflusssemantik aufweisen. Hierdurch werden die Analysefähigkeit sowie auch die Austauschbarkeit der Modelle eingeschränkt. In diesem Beitrag wird eine leichtgewichtige Methode am Beispiel der Business Process Model and Notation (BPMN) zur präzisen Beschreibung der Kontrollflusssemantik einer beliebigen, graphischen Modellierungssprache als Microsoft Visio (MS Visio) Add-In vorgestellt. Die Kontrollflusssemantik wird durch eine fallbasierte Zuweisung zu den Kontrollflussmustern der Workflow Pattern Initiative definiert. Auf dieser Grundlage können die dokumentierten Geschäftsprozesse analysiert und simuliert sowie mit anderen Software-Werkzeugen ausgetauscht werden.
Neural Network Attribution Methods for Problems in Geoscience: A Novel Synthetic Benchmark Dataset
Creators: name: Mamalakis, Antonios
name: Ebert-Uphoff, Imme
name: Barnes, Elizabeth A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Despite the increasingly successful application of neural networks to many problems in the geosciences, their complex and nonlinear structure makes the interpretation of their predictions difficult, which limits model trust and does not allow scientists to gain physical insights about the problem at hand. Many different methods have been introduced in the emerging field of eXplainable Artificial Intelligence (XAI), which aim at attributing the network s prediction to specific features in the input domain. XAI methods are usually assessed by using benchmark datasets (like MNIST or ImageNet for image classification). However, an objective, theoretically derived ground truth for the attribution is lacking for most of these datasets, making the assessment of XAI in many cases subjective. Also, benchmark datasets specifically designed for problems in geosciences are rare. Here, we provide a framework, based on the use of additively separable functions, to generate attribution benchmark datasets for regression problems for which the ground truth of the attribution is known a priori. We generate a large benchmark dataset and train a fully connected network to learn the underlying function that was used for simulation. We then compare estimated heatmaps from different XAI methods to the ground truth in order to identify examples where specific XAI methods perform well or poorly. We believe that attribution benchmarks as the ones introduced herein are of great importance for further application of neural networks in the geosciences, and for more objective assessment and accurate implementation of XAI methods, which will increase model trust and assist in discovering new science.
description: This is an updated preprint version of the manuscript. This work has been published (open access) in the journal Environmental Data Science with doi: https://doi.org/10.1017/eds.2022.7. Please cite the published version. The dataset of this work is published at: https://mlhub.earth/data/csu_synthetic_attribution
Tractor geometry of asymptotically flat spacetimes
Creators: name: Herfray, Yannick
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In a recent work it was shown that conformal Carroll geometries are canonically equipped with a null-tractor bundle generalizing the tractor bundle of conformal geometry. We here show that in the case of the conformal boundary of an asymptotically flat spacetime of any dimension d>=3, this null-tractor bundle over null infinity can be canonically derived from the interior spacetime geometry. As was previously discussed, compatible normal connections on the null-tractor bundle are not unique: We prove that they are in fact in one-to-one correspondence with the germ of the asymptotically flat spacetimes to leading order. In dimension d=3 the tractor connection invariantly encodes a choice of mass and angular momentum aspect, in dimension d>=4 a choice of asymptotic shear. In dimension d=4 the presence of tractor curvature correspond to gravitational radiation. Even thought these results are by construction geometrical and coordinate invariant, we give explicit expressions in BMS coordinates for concreteness.
description: This match the version published in Annales Henri Poincar\'e (2022)
Nonlinear corrections in the quantization of a weakly nonideal Bose gas at zero temperature
Creators: name: Smolyakov, Mikhail N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In the present paper, quantization of a weakly nonideal Bose gas at zero temperature along the lines of the well-known Bogolyubov approach is performed. The analysis presented in this paper is based, in addition to the steps of the original Bogolyubov approach, on the use of nonoscillation modes (which are also solutions of the linearized Heisenberg equation) for recovering the canonical commutation relations in the linear approximation, as well as on the calculation of the first nonlinear correction to the solution of the linearized Heisenberg equation which satisfies the canonical commutation relations at the next order. It is shown that, at least in the case of free quasi-particles, consideration of the nonlinear correction automatically solves the problem of nonconserved particle number, which is inherent to the original approach.
description: 44 pages. Supplementary material: the standard Maxima .wxmx file is automatically unpacked by the arXiv upload software, so the .xml file, which can also be processed by Maxima, is uploaded instead. v3: two minor misprints corrected (in formulas (202) and (260)), minor cosmetic changes in supplementary files
LioNets: A Neural-Specific Local Interpretation Technique Exploiting Penultimate Layer Information
Creators: name: Mollas, Ioannis
name: Bassiliades, Nick
name: Tsoumakas, Grigorios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.0; I.2.6; I.2.7

description: Artificial Intelligence (AI) has a tremendous impact on the unexpected growth of technology in almost every aspect. AI-powered systems are monitoring and deciding about sensitive economic and societal issues. The future is towards automation, and it must not be prevented. However, this is a conflicting viewpoint for a lot of people, due to the fear of uncontrollable AI systems. This concern could be reasonable if it was originating from considerations associated with social issues, like gender-biased, or obscure decision-making systems. Explainable AI (XAI) is recently treated as a huge step towards reliable systems, enhancing the trust of people to AI. Interpretable machine learning (IML), a subfield of XAI, is also an urgent topic of research. This paper presents a small but significant contribution to the IML community, focusing on a local-based, neural-specific interpretation process applied to textual and time-series data. The proposed methodology introduces new approaches to the presentation of feature importance based interpretations, as well as the production of counterfactual words on textual datasets. Eventually, an improved evaluation metric is introduced for the assessment of interpretation techniques, which supports an extensive set of qualitative and quantitative experiments.
description: 23 pages, 22 figures, 2 tables, submitted to Information Fusion Journal
Quantitative Research Article Review - Transportation Self-Efficacy and Employment among Individuals with Visual Impairments.pdf
Creators: name: FUNK, Philippe
Publisher: name: figshare
Year: 2022
Subjects: subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The quantitative research article “Transportation Self-Efficacy and Employment among Individuals with Visual Impairments” by Cmar et al. (2018) highlights the challenges faced by individuals with visual impairments. According to the background, many people with disabilities who do not have access to drivers experience difficulties getting a consistent transport method. However, access to efficient transportation is an essential factor in the independence, employment, and improved quality of life for any individual. Therefore, the article investigated transportation self-efficacy and its link to employment among visually impaired working-age people who are not drivers. The main variables researched include transportation self-efficacy, geographical location, level of vision, race and ethnicity demographics, level of education completed, presence of other physical disabilities, age, VR service reception, and full-time employment.
On the complexity of spinels: Magnetic, electronic, and polar ground states
Creators: name: Tsurkan, V.
name: von Nidda, H. -A. Krug
name: Deisenhofer, J.
name: Lunkenheimer, P.
name: Loidl, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This review summarizes more than 100 years of research on spinel compounds, mainly focusing on the progress in understanding their magnetic, electronic, and polar properties during the last two decades. Many spinel compounds are magnetic insulators or semiconductors; however, a number of spinel-type metals exists including superconductors and some rare examples of d-derived heavy-fermion compounds. In the early days, they gained importance as ferrimagnetic or even ferromagnetic insulators with relatively high saturation magnetization and high ordering temperatures, with magnetite being the first magnetic mineral known to mankind. However, spinels played an outstanding role in the development of concepts of magnetism, in testing and verifying the fundamentals of magnetic exchange, in understanding orbital-ordering and charge-ordering phenomena. In addition, the A- site as well as the B-site cations in the spinel structure form lattices prone to strong frustration effects resulting in exotic ground-state properties. In case the A-site cation is Jahn-Teller active, additional entanglements of spin and orbital degrees of freedom appear, which can give rise to a spin-orbital liquid or an orbital glass state. The B-site cations form a pyrochlore lattice, one of the strongest contenders of frustration in three dimensions. In addition, in spinels with both cation lattices carrying magnetic moments, competing magnetic exchange interactions become important, yielding ground states like the time-honoured triangular Yafet-Kittel structure. Finally, yet importantly, there exists a long-standing dispute about the possibility of a polar ground state in spinels, despite their reported overall cubic symmetry. Indeed, over the years number of multiferroic spinels were identified.
description: 118 pages, 60 figures
Real-time detection of Ochratoxin A in wine through insight of aptamer conformation in conjunction with graphene field-effect transistor
Creators: name: Nekrasov, Nikita
name: Jaric, Stefan
name: Kireev, Dmitry
name: Emelianov, Aleksei V.
name: Orlov, Alexey V.
name: Gadjanski, Ivana
name: Nikitin, Petr I.
name: Akinwande, Deji
name: Bobrinetskiy, Ivan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Mycotoxins comprise a frequent type of toxins present in food and feed. The problem of mycotoxin contamination has been recently aggravated due to the increased complexity of the farm-to-fork chains, resulting in negative effects on human and animal health and, consequently, economics. The easy-to-use, on-site, on-demand, and rapid monitoring of mycotoxins in food/feed is highly desired. In this work, we report on an advanced mycotoxin biosensor based on an array of graphene field-effect transistors integrated on a single silicon chip. A specifically designed aptamer against Ochratoxin A (OTA) was used as a recognition element, where it was covalently attached to graphene surface via pyrenebutanoic acid, succinimidyl ester (PBASE) chemistry. Namely, an electric field stimulation was used to promote more efficient π-π stacking of PBASE to graphene. The specific G-rich aptamer strand suggest its π-π stacking on graphene in free-standing regime and reconfiguration in G-quadruplex during binding an OTA molecule. This realistic behavior of the aptamer is sensitive to the ionic strength of the analyte solution, demonstrating a 10-fold increase in sensitivity at low ionic strengths. The graphene-aptamer sensors reported here demonstrate fast assay with the lowest detection limit of 1.4 pM for OTA within a response time as low as 10 s, which is more than 30 times faster compared to any other reported aptamer-based methods for mycotoxin detection. The sensors hold comparable performance when operated in real-time within a complex matrix of wine without additional time-consuming pre-treatment.
Formula RL: Deep Reinforcement Learning for Autonomous Racing using Telemetry Data
Creators: name: Remonda, Adrian
name: Krebs, Sarah
name: Veas, Eduardo
name: Luzhnica, Granit
name: Kern, Roman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper explores the use of reinforcement learning (RL) models for autonomous racing. In contrast to passenger cars, where safety is the top priority, a racing car aims to minimize the lap-time. We frame the problem as a reinforcement learning task with a multidimensional input consisting of the vehicle telemetry, and a continuous action space. To find out which RL methods better solve the problem and whether the obtained models generalize to driving on unknown tracks, we put 10 variants of deep deterministic policy gradient (DDPG) to race in two experiments: i)~studying how RL methods learn to drive a racing car and ii)~studying how the learning scenario influences the capability of the models to generalize. Our studies show that models trained with RL are not only able to drive faster than the baseline open source handcrafted bots but also generalize to unknown tracks.
Leibnizjański Kontekst Teorii Trzech Światów K.R. Poppera
Creators: name: Święczkowska, Halina
Publisher: name: Zenodo
Year: 2018
Subjects: pochodzenie i ewolucja języka — wiedza — trzeci świat Poppera — świat idei Platona — racjonalny obraz świata Leibniza

description: pochodzenie i ewolucja języka — wiedza — trzeci świat Poppera — świat idei Platona — racjonalny

obraz świata Leibniza
Relating stated skein algebras and internal skein algebras
Creators: name: Haïoun, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K16, 18M15

description: We give an explicit correspondence between stated skein algebras, which are defined via explicit relations on stated tangles in [Costantino F., Lê T.T.Q., arXiv:1907.11400], and internal skein algebras, which are defined as internal endomorphism algebras in free cocompletions of skein categories in [Ben-Zvi D., Brochier A., Jordan D., J. Topol. 11 (2018), 874-917, arXiv:1501.04652] or in [Gunningham S., Jordan D., Safronov P., arXiv:1908.05233]. Stated skein algebras are defined on surfaces with multiple boundary edges and we generalise internal skein algebras in this context. Now, one needs to distinguish between left and right boundary edges, and we explain this phenomenon on stated skein algebras using a half-twist. We prove excision properties of multi-edges internal skein algebras using excision properties of skein categories, and agreeing with excision properties of stated skein algebras when $\mathcal{V} = \mathcal{U}_{q^2}(\mathfrak{sl}_2)\text{-}{\rm mod}^{\rm fin}$. Our proofs are mostly based on skein theory and we do not require the reader to be familiar with the formalism of higher categories.
กระบวนการมีส่วนร่วมทางการเมืองผ่านสื่อออนไลน์: กรณีศึกษา โพสต์ทูเดย์ และแนวหน้า
Creators: name: วุฒิพร ลิ้มวราภัส
Publisher: name: มหาวิทยาลัยรังสิต
Year: 2563
Subjects: การมีส่วนร่วมทางการเมือง, สื่อออนไลน์, พัฒนาการทางการเมือง

description: วารสารรังสิตบัณฑิตศึกษาในกลุ่มธุรกิจและสังคมศาสตร์, 6, 2, หน้า 106-118
Formy Agnostycyzmu Xvii I Xviii Wieku — Od Pascala Do Kanta
Creators: name: Drozdowicz, Zbigniew
Publisher: name: Zenodo
Year: 2018
Subjects: agnostycyzm pascalowski — agnostycyzm hume'owski — agnostycyzm kantowski

description: agnostycyzm pascalowski — agnostycyzm hume’owski — agnostycyzm kantowski
Scoping Review Protocol: Availability and Accessibility of Dementia Services for Migrants and Refugees, and Their Carers in the UK
Creators: name: Tomsett, Bella
Publisher: name: figshare
Year: 2022
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 111702 Aged Health Care
subject: Health Care
subject: 111712 Health Promotion
subject: 111708 Health and Community Services
subject: 160508 Health Policy
subject: FOS: Political science
subject: 111707 Family Care
subject: 111717 Primary Health Care
subject: 111718 Residential Client Care

description: Protocol for scoping review regardiung the availability and accessibility of dementia services for migrants, refugess and asylum seekers, and their carers, in the UK.
Rethinking sustainable latrine use through human behaviour change and local capacity development An assessment of the district approach in Ethiopia (A case study)
Creators: name: Addise Amado Dube
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 90409 Wastewater Treatment Processes
subject: FOS: Chemical engineering

description: Sustainable latrine use is the headline of sanitation discussions. Despite the efforts, progress lags behind its targets in developing countries. The aim of this study focuses on understanding key motivators of sanitation behaviour change, capacity development and intersectoral integration to advance sustainable use of latrines. A mixed methodological approach comprising of survey, interview, focus group discussion and observation is applied to collect evidences. However, research on sanitation behaviour change and capacity development is scanty and at lower stage compared to other health sectors such as on diabetics, HIV/AIDS, obesity or alcoholism. The existing literature indicates that human behaviour change is a crucial factor in achieving sanitation targets and it is vital to work in interdisciplinary manner to achieve such goals. Sociological and historical approaches to sanitation research can contribute immensely to reflect on social facts and lessons from the past and the current practices. This case study discovered that social factors that focus on awareness creation and education is a strong reason in motivating sustainable latrine use followed by emotional layers such as cleanliness and decency as important driving forces. As the result of using latrines community members feel confident for getting dignity and convenience in their daily agricultural activities and homestead tasks which in turn motivates them to maintain their toilets. Although the qualities of the latrines in the study communities are poor and its utilization rate is very low, the latrine culture is progressing slowly but with a pressure to be ODF at the expense of sustainability. Based on such lessons, empowering stakeholders at the household and Kebele levels is crucial. Such capacity development includes enhancing the skills of service providers, facilitating sanitation products and promotion as well as providing supportive supervision and monitoring. On the other hand, the challenges of integrating intersectoral collaboration are complex and massive. Except for its lack of quality, regular follow up and monitoring, the coordination mechanisms are functioning properly at district level whereas the Kebele coordination can benefit if it mobilizes all the existing structures including political organizations, government civil service structures and social institutions such as religious, self help and other groups. If the current defects get corrected with an emphasis on quality, the evolution of sustainable latrine use in Ethiopia is positive.
Exact WKB methods in $SU(2)$ $N_f=1$
Creators: name: Grassi, Alba
name: Hao, Qianyu
name: Neitzke, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study in detail the Schrödinger equation corresponding to the four dimensional $SU(2)$ $\mathcal{N}=2$ SQCD theory with one flavour. We calculate the Voros symbols, or quantum periods, in four different ways: Borel summation of the WKB series, direct computation of Wronskians of exponentially decaying solutions, the TBA equations of Gaiotto-Moore-Neitzke/Gaiotto, and instanton counting. We make computations by all of these methods, finding good agreement. We also study the exact quantization condition for the spectrum, and we compute the Fredholm determinant of the inverse of the Schrödinger operator using the TS/ST correspondence and Zamolodchikov's TBA, again finding good agreement. In addition, we explore two aspects of the relationship between singularities of the Borel transformed WKB series and BPS states: BPS states of the 4d theory are related to singularities in the Borel transformed WKB series for the quantum periods, and BPS states of a coupled 2d+4d system are related to singularities in the Borel transformed WKB series for local solutions of the Schrödinger equation.
description: 63 pages, 18 figures
A Hermite Method with a Discontinuity Sensor for Hamilton-Jacobi Equations
Creators: name: Loya, Allen Alvarez
name: Appelö, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a Hermite interpolation based partial differential equation solver for Hamilton-Jacobi equations. Many Hamilton-Jacobi equations have a nonlinear dependency on the gradient, which gives rise to discontinuities in the derivatives of the solution, resulting in kinks. We built our solver with two goals in mind: 1) high order accuracy in smooth regions and 2) sharp resolution of kinks. To achieve this, we use Hermite interpolation with a smoothness sensor. The degrees-of freedom of Hermite methods are tensor-product Taylor polynomials of degree $m$ in each coordinate direction. The method uses $(m+1)^d$ degrees of freedom per node in $d$-dimensions and achieves an order of accuracy $(2m+1)$ when the solution is smooth. To obtain sharp resolution of kinks, we sense the smoothness of the solution on each cell at each timestep. If the solution is smooth, we march the interpolant forward in time with no modifications. When our method encounters a cell over which the solution is not smooth, it introduces artificial viscosity locally while proceeding normally in smooth regions. We show through numerical experiments that the solver sharply captures kinks once the solution losses continuity in the derivative while achieving $2m+1$ order accuracy in smooth regions.
Assessing a Peer-Reviewed Article – Time Series Analysis.pdf
Creators: name: FUNK, Philippe
Publisher: name: figshare
Year: 2022
Subjects: subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The notion of utilizing time series analysis has become commonplace since its inception as a research methodology. By definition, this entails the meticulous gathering and examination of data over a continuous and specific duration and developing a suitable model for describing the integral trend of the series. In essence, Athiyarath et al. (2020) assert that numerous scholars have adopted this form of analysis to achieve different goals. Notably, even with the current deep and machine learning, time series plays a critical function in enabling individuals to forecast weather patterns, business trajectory, stock market movements, power fluctuations, and health care. With time series analysis, researchers can obtain real-time data, making time-series predictions essential aspects of statistics and sequential data mining. To this end, time series prediction is a vital research concept valuable for studies that endeavor to forecast the future using historical data. This makes time series analysis appropriate for a study whose focus is to explore whether certain events are likely to repeat in the near future.
ตัวแบบประสิทธิภาพการบริหารจัดการธุรกิจการขนส่งทางน้ำ ในภาคกลางของประเทศไทย
Creators: name: สิทธปวีย์ ธนโสตถิกุลนันท์
Publisher: name: มหาวิทยาลัยรังสิต
Year: 2563
Subjects: ประสิทธิภาพ, การขนส่งทางน้ำ, การบริหารจัดการภายในองค์การ

description: วารสารรังสิตบัณฑิตศึกษาในกลุ่มธุรกิจและสังคมศาสตร์, 6, 2, หน้า 119-135
A test of the evolution of gas depletion factor in galaxy clusters using strong gravitational lensing systems
Creators: name: Holanda, R. F. L.
name: Bora, Kamal
name: Desai, Shantanu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this letter, we discuss a new method to probe the redshift evolution of the gas depletion factor, i.e. the ratio by which the gas mass fraction of galaxy clusters is depleted with respect to the universal mean of baryon fraction. The dataset we use for this purpose consists of 40 gas mass fraction measurements measured at $r_{2500}$ using Chandra X-ray observations, strong gravitational lensing sub-samples obtained from SLOAN Lens ACS + BOSS Emission-line Lens Survey (BELLS) + Strong Legacy Survey SL2S + SLACS. For our analysis, the validity of cosmic distance duality relation is assumed. We find a mildly decreasing trend for the gas depletion factor as a function of redshift at about 2.7$σ$. This is the first result in literature which does not find a constant gas depletion factor as a function of redshift using gas mass fraction measurements at $r_{2500}$.
description: 11 pages, 11 figures. Accepted for publication in EPJC. arXiv admin note: text overlap with arXiv:2105.02168