cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Research-based assessment of students' beliefs about experimental physics: When is gender a factor?
Creators: name: Wilcox, Bethany R.
name: Lewandowski, H. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The existence of gender differences in student performance on conceptual assessments and their responses to attitudinal assessments has been repeatedly demonstrated. This difference is often present in students' preinstruction responses and persists in their postinstruction responses. However, one area in which the presence of gender differences has not been extensively explored is undergraduate laboratory courses. For example, one of the few laboratory focused research-based assessments, the Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS), has not been tested for the existence of gender differences in students' responses. Here, we utilize a national data set of responses to the E-CLASS to determine if they demonstrate significant gender differences. We also investigate how these differences vary along multiple student and course demographic slices, including course level (first-year vs.\ beyond-first-year) and major (physics vs.\ non-physics). We observe a gender gap in pre- and postinstruction E-CLASS scores in the aggregate data both for the overall score and for most items individually. However, for some subpopulations (e.g., beyond-first-year students) the size or even existence of the gender gap depends on another dimension (e.g., student major). We also find that for all groups the gap in postinstruction scores vanishes or is greatly reduced when controlling for preinstruction scores, course level, and student major.
description: 11 pages, 3 figures, accepted to Phys. Rev. - PER
The role of parametric instabilities in turbulence generation and proton heating: Hybrid simulations of parallel propagating Alfvén waves
Creators: name: González, C. A.
name: Tenerani, A.
name: Velli, M.
name: Hellinger, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Large amplitude Alfvén waves tend to be unstable to parametric instabilities which result in a decay process of the initial wave into different daughter waves depending upon the amplitude of the fluctuations and the plasma beta. The propagation angle with respect to the mean magnetic field of the daughter waves plays an important role in determining the type of decay. In this paper, we revisit this problem by means of multi-dimensional hybrid simulations. In particular, we study the decay and the subsequent nonlinear evolution of large-amplitude Alfvén waves by investigating the saturation mechanism of the instability and its final nonlinear state reached for different wave amplitudes and plasma beta conditions. As opposed to one-dimensional simulations where the Decay instability is suppressed for increasing plasma beta values, we find that the decay process in multi-dimensions persists at large values of the plasma beta via the filamentation/magnetosonic decay instabilities. In general, the decay process acts as a trigger both to develop a perpendicular turbulent cascade and to enhance mean field-aligned wave-particle interactions. We find indeed that the saturated state is characterized by a turbulent plasma displaying a field-aligned beam at the Alfvén speed and increased temperatures that we ascribe to the Landau resonance and pitch angle scattering in phase space.
Βελτίωση και αξιολόγηση του σοβαρού παιχνιδιού «FriendMe»
Creators: name: Ακριτίδης, Μάριος Ιάκωβου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Σοβαρό παιχνίδι
Αξιολόγηση
Προγραμματιστικές δεξιότητες
Serious game
Evaluation
Programming skills

description: Το «Friend Me» αποτελεί ένα σοβαρό παιχνίδι το οποίο έχει ως στόχο την απόκτηση προγραμματιστικών δεξιοτήτων μέσω ενός διαδραστικού και διασκεδαστικού περιβάλλοντος που παρέχει συνεχώς νέες προκλήσεις. Ο παίκτης έχει τη δυνατότητα να μάθει μια γλώσσα προγραμματισμού από την αρχή ή να εξασκηθεί σε μια γλώσσα που ήδη γνωρίζει. Το παιχνίδι έχει σχεδιαστεί με τέτοιο τρόπο ώστε να είναι εύκολη η προσαρμογή του σε οποιαδήποτε γλώσσα προγραμματισμού. Σκοπός αυτής της διπλωματικής εργασίας είναι η βελτίωση του «Friend Me», τροποποιώντας τις υπάρχουσες λειτουργίες του και προσθέτοντας καινούργιες με βάση τα σχόλια χρηστών που έπαιξαν το παιχνίδι, και η εκ νέου αξιολόγησή του. Οι αλλαγές που έγιναν αφορούν κυρίως την βελτίωση της εμπειρίας του παίκτη αλλά και την ενίσχυση των μαθησιακών στόχων του παιχνιδιού. Από τα αποτελέσματα της αξιολόγησης που πραγματοποιήθηκε φαίνεται πως το παιχνίδι έκανε θετική εντύπωση στους συμμετέχοντες και πως θα μπορούσε να χρησιμοποιηθεί για την εκμάθηση γλωσσών προγραμματισμού.
description: “Friend Me” is a serious game that aims to facilitate the acquirement of programming skills through an interactive and entertaining environment that constantly provides new challenges. The player can learn a programming language from scratch or practice a language they already know. The game is designed in such a way that it is easy to adapt to any programming language. This thesis aim is to improve and reevaluate “Friend Me” by modifying its existing functions and adding new ones based on the comments of users who played the game. The changes made mainly concern the improvement of the player experience and the enhancement of the learning goals of the game. The results of the evaluation show that the game made a positive impression on the participants and that it could be used for learning programming languages.
Media effects on people’s attitudes towards vaccination against COVID-19
Creators: name: Τάσσος, Αλέξανδρος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Επιδράσεις των Μ.Μ.Ε.
Κορωνοϊός – COVID-19
Παράγοντες εμβολιασμού
Media effects
COVID-19
Vaccination Predictors

description: The present study aims to shed some light on the effects media have on people’s attitudes about vaccination against COVID-19. To examine the social psychological processes underlying media’s influence on people’s attitudes and behavior concerning the vaccines against Covid-19. More specifically, how media consumption and informational dependence affects our views and intention concerning vaccination. Furthermore, we examine if and to what extent, media campaigns affect our decision to get vaccinated and what’s the role of our social environment (close friends and acquaintances) in this process. Plus, apart from the traditional media, vital is the role of social media in the context of vaccine intention and attitudes, so a part of this dissertation deals with the role social media play in the public discourse of vaccination and attitude construction. Finally, as COVID-19 has been associated to many conspiracy theories, we examine people’s perceptions between these two and how conspiracy theories beliefs are actually correlated to vaccination. By recruiting theoretical and empirical research, we wish to discover the main factors that predict vaccination.
description: Η παρούσα εργασία στοχεύει στο να διερευνήσει τις επιδράσεις που έχουν τα Μέσα Ενημέρωσης στη στάση των ανθρώπων σχετικά με τον εμβολιασμό κατά της COVID-19. Πιο συγκεκριμένα, πώς η κατανάλωση των Μέσων Ενημέρωσης και η πληροφοριακή εξάρτηση επηρεάζει τις απόψεις και τις προθέσεις των ανθρώπων σχετικά με τον εμβολιασμό. Επιπλέον, εξετάζουμε εάν και σε ποιο βαθμό οι καμπάνιες στα Μέσα Ενημέρωσης επηρεάζουν την απόφασή μας να εμβολιαστούμε και ποιος είναι ο ρόλος του κοινωνικού μας περιβάλλοντος σε αυτή τη διαδικασία. Εκτός από τα παραδοσιακά Μέσα Ενημέρωσης, ζωτικής σημασίας είναι ο ρόλος των Μέσων Κοινωνικής Δικτύωσης όσον αφορά την πρόθεση και τις στάσεις απέναντι στον εμβολιασμό, επομένως ένα μέρος αυτής της διατριβής πραγματεύεται τον ρόλο που παίζουν τα Μέσα Κοινωνικής Δικτύωσης για τον εμβολιασμό και την κατασκευή στάσεων. Τέλος, καθώς η COVID-19 έχει συσχετιστεί με πολλές θεωρίες συνωμοσίας, εξετάζουμε τις αντιλήψεις των ανθρώπων μεταξύ αυτών των δύο και πώς συσχετίζονται πραγματικά οι πεποιθήσεις σε θεωρίες συνωμοσίας με τον εμβολιασμό. Επιστρατεύοντας θεωρητική και εμπειρική έρευνα επιθυμούμε να ανακαλύψουμε τους κύριους παράγοντες που συνδέονται με τον εμβολιασμό.
Permutree sorting
Creators: name: Pilaud, Vincent
name: Pons, Viviane
name: Jiménez, Daniel Tamayo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68P10, 68Q45, 68R05, 05E99

description: Generalizing stack sorting and $c$-sorting for permutations, we define the permutree sorting algorithm. Given two disjoint subsets $U$ and $D$ of $\{2, \dots, n-1\}$, the $(U,D)$-permutree sorting tries to sort the permutation $π\in \mathfrak{S}_n$ and fails if and only if there are $1 \le i < j < k \le n$ such that $π$ contains the subword $jki$ if $j \in U$ and $kij$ if $j \in D$. This algorithm is seen as a way to explore an automaton which either rejects all reduced expressions of $π$, or accepts those reduced expressions for $π$ whose prefixes are all $(U,D)$-permutree sortable.
description: 18 pages, 5 figures
Rigid inner forms over local function fields
Creators: name: Dillery, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11S37, 22E50

description: We generalize the concept of rigid inner forms, defined by Kaletha in [Kal16], to the setting of a local function field $F$ in order state the local Langlands conjectures for arbitrary connected reductive groups over $F$. To do this, we define for a connected reductive group $G$ over $F$ a new cohomology set $H^{1}(\mathcal{E}, Z \to G) \subset H_{\text{fpqc}}^{1}(\mathcal{E}, G)$ for a gerbe $\mathcal{E}$ attached to a class in $H_{\text{fppf}}^{2}(F, u)$ for a certain canonically-defined profinite commutative group scheme $u$, building up to an analogue of the classical Tate-Nakayama duality theorem. We define a relative transfer factor for an endoscopic datum serving a connected reductive group $G$ over $F$, and use rigid inner forms to extend this to an absolute transfer factor, enabling the statement of endoscopic conjectures relating stable virtual characters and $\dot{s}$-stable virtual characters for a semisimple $\dot{s}$ associated to a tempered Langlands parameter.
description: v4: accepted version. Changes to exposition, definition of inverse limit of gerbes, and derived inverse limit calculations, all coming from referee's comments. To appear in Adv. Math. 81 pages
NuSTAR observations of WISE J1036+0449, a Galaxy at z$\sim1$ obscured by hot dust
Creators: name: Ricci, C.
name: Assef, R. J.
name: Stern, D.
name: Nikutta, R.
name: Alexander, D. M.
name: Asmus, D.
name: Ballantyne, D. R.
name: Bauer, F. E.
name: Blain, A. W.
name: Boggs, S.
name: Boorman, P. G.
name: Brandt, W. N.
name: Brightman, M.
name: Chang, C. S.
name: Chen, C. -T. J.
name: Christensen, F. E.
name: Comastri, A.
name: Craig, W. W.
name: Díaz-Santos, T.
name: Eisenhardt, P. R.
name: Farrah, D.
name: Gandhi, P.
name: Hailey, C. J.
name: Harrison, F. A.
name: Jun, H. D.
name: Koss, M. J.
name: LaMassa, S.
name: Lansbury, G. B.
name: Markwardt, C. B.
name: Stalevski, M.
name: Stanley, F.
name: Treister, E.
name: Tsai, C. -W.
name: Walton, D. J.
name: Wu, J. W.
name: Zappacosta, L.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Hot, Dust-Obscured Galaxies (Hot DOGs), selected from the WISE all sky infrared survey, host some of the most powerful Active Galactic Nuclei (AGN) known, and might represent an important stage in the evolution of galaxies. Most known Hot DOGs are at $z> 1.5$, due in part to a strong bias against identifying them at lower redshift related to the selection criteria. We present a new selection method that identifies 153 Hot DOG candidates at $z\sim 1$, where they are significantly brighter and easier to study. We validate this approach by measuring a redshift $z=1.009$, and an SED similar to higher redshift Hot DOGs for one of these objects, WISE J1036+0449 ($L_{\rm\,Bol}\simeq 8\times 10^{46}\rm\,erg\,s^{-1}$), using data from Keck/LRIS and NIRSPEC, SDSS, and CSO. We find evidence of a broadened component in MgII, which, if due to the gravitational potential of the supermassive black hole, would imply a black hole mass of $M_{\rm\,BH}\simeq 2 \times 10^8 M_{\odot}$, and an Eddington ratio of $λ_{\rm\,Edd}\simeq 2.7$. WISE J1036+0449 is the first Hot DOG detected by NuSTAR, and the observations show that the source is heavily obscured, with a column density of $N_{\rm\,H}\simeq(2-15)\times10^{23}\rm\,cm^{-2}$. The source has an intrinsic 2-10 keV luminosity of $\sim 6\times 10^{44}\rm\,erg\,s^{-1}$, a value significantly lower than that expected from the mid-infrared/X-ray correlation. We also find that the other Hot DOGs observed by X-ray facilities show a similar deficiency of X-ray flux. We discuss the origin of the X-ray weakness and the absorption properties of Hot DOGs. Hot DOGs at $z\lesssim1$ could be excellent laboratories to probe the characteristics of the accretion flow and of the X-ray emitting plasma at extreme values of the Eddington ratio.
description: Accepted for publication in ApJ, 16 pages
Geochemistry and petrogenesis of arc rocks from Dieng, Sundoro and Sumbing volcanic complexes central Java, Indonesia
Creators: name: Sukhyar., Raden
Publisher: name: Monash University
Year: 2021

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.
Relative Entropy and Torsion Coupling
Creators: name: Lin, Feng-Li
name: Ning, Bo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We evaluate the relative entropy on a ball region near the UV fixed point of a holographic conformal field theory deformed by a fermionic operator of nonzero vacuum expectation value. The positivity of the relative entropy considered here is implied by the expected monotonicity of decrease of quantum entanglement under RG flow. The calculations are done in the perturbative framework of Einstein-Cartan gravity in four-dimensional asymptotic anti-de Sitter space with a postulated standard bilinear coupling between axial fermion current and torsion. By requiring positivity of relative entropy, our result yields a constraint on axial current-torsion coupling, fermion mass and equation of state.
description: 31 pages; match the version accepted by PRD
Unexplored nutritive potential of tomato to combat global malnutrition
Creators: name: Vats, Sanskriti
name: Bansal, Ruchi
name: Rana, Nitika
name: Kumawat, Surbhi
name: Bhatt, Vacha
name: Jadhav, Pravin
name: Kale, Vijay
name: Sathe, Atul
name: Sonah, Humira
name: Jugdaohsingh, Ravin
name: Sharma, Tilak Raj
name: Deshmukh, Rupesh
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Tomato, a widely consumed vegetable crop, offers a real potential to combat human nutritional deficiencies. Tomatoes are rich in micronutrients and other bioactive compounds (including vitamins, carotenoids, and minerals) that are known to be essential or beneficial for human health. This review highlights the current state of the art in the molecular understanding of the nutritional aspects, conventional and molecular breeding efforts, and biofortification studies undertaken to improve the nutritional content and quality of tomato. Transcriptomics and metabolomics studies, which offer a deeper understanding of the molecular regulation of the tomato’s nutrients, are discussed. The potential uses of the wastes from the tomato processing industry (i.e., the peels and seed extracts) that are particularly rich in oils and proteins are also discussed. Recent advancements with CRISPR/Cas mediated gene-editing technology provide enormous opportunities to enhance the nutritional content of agricultural produces, including tomatoes. In this regard, genome editing efforts with respect to biofortification in the tomato plant are also discussed. The recent technological advancements and knowledge gaps described herein aim to help explore the unexplored nutritional potential of the tomato.
Exact Bethe ansatz spectrum of a tight-binding chain with dephasing noise
Creators: name: Medvedyeva, Mariya V.
name: Essler, Fabian H. L.
name: Prosen, Tomaz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We construct an exact map between a tight-binding model on any bipartite lattice in presence of dephasing noise and a Hubbard model with imaginary interaction strength. In one dimension, the exact many-body Liouvillian spectrum can be obtained by application of the Bethe ansatz method. We find that both the non-equilibrium steady state and the leading decay modes describing the relaxation at late times are related to the eta-pairing symmetry of the Hubbard model. We show that there is a remarkable relation between the time-evolution of an arbitrary k-point correlation function in the dissipative system and k-particle states of the corresponding Hubbard model.
description: 5 pages, 1 figure. Version accepted to Phys. Rev. Lett
title: Developing Support for Critical Citation Requirements for Civil and Environmental Engineering Graduate Research
title: Board 94: Developing Support for Critical Citation Requirements for Civil and Environmental Engineering Graduate Research
titleType: AlternativeTitle
Creators: name: Weiss, Sarah
Publisher: name: 2023 ASEE Annual Conference & Exposition
Year: 2023
Subjects: Citation Justice
Equitable Citation Pratice
Critical Citation
Engineering Librarianship
Civil & Enviromental Engineering

description: The 2020-2021 school year saw the implementation of the coordinated efforts of several academic librarians from the University of Maryland, College Park in beginning a program of citation justice practices education in departments across campus. Citation justice recognizes that citations are a form of power in the current state of academia and focuses on actively citing authors with historically marginalized identities in an effort to center and uplift their voices. Equitable citation practices involve auditing citation lists, but also making sure that meaningful engagement with works from authors with diverse identities is present in the research. This paper documents the efforts that have been put in place so far around implementing citation justice education at UMD libraries including developing instruction modules and research guides. In particular, focusing on the librarians’ instigation of a close partnership with the faculty and graduate students of the Civil and Environmental Engineering Department (CEE) who were particularly receptive to expanding their scholarly communication practices to include aspects of citation justice. Additionally, it explores the potential to develop further support for tools including code, templates, and author associations and lists that can be used to implement diverse citations. Future steps include developing library support that would allow graduate students in the department of CEE to meet a requirement for diversity in their citation practices that will serve as concrete and practical applications of citation justice that will be applicable in their post-academia careers.
The Askey-Wilson algebra and its avatars
Creators: name: Crampé, Nicolas
name: Frappat, Luc
name: Gaboriaud, Julien
name: d'Andecy, Loïc Poulain
name: Ragoucy, Eric
name: Vinet, Luc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The original Askey-Wilson algebra introduced by Zhedanov encodes the bispectrality properties of the eponym polynomials. The name 'Askey-Wilson algebra' is currently used to refer to a variety of related structures that appear in a large number of contexts. We review these versions, sort them out and establish the relations between them. We focus on two specific avatars. The first is a quotient of the original Zhedanov algebra; it is shown to be invariant under the Weyl group of type $D_4$ and to have a reflection algebra presentation. The second is a universal analogue of the first one; it is isomorphic to the Kauffman bracket skein algebra (KBSA) of the four-punctured sphere and to a subalgebra of the universal double affine Hecke algebra $(C_1^{\vee},C_1)$. This second algebra emerges from the Racah problem of $U_q(\mathfrak{sl}_2)$ and is related via an injective homomorphism to the centralizer of $U_q(\mathfrak{sl}_2)$ in its threefold tensor product. How the Artin braid group acts on the incarnations of this second avatar through conjugation by $R$-matrices (in the Racah problem) or half Dehn twists (in the diagrammatic KBSA picture) is also highlighted. Attempts at defining higher rank Askey-Wilson algebras are briefly discussed and summarized in a diagrammatic fashion.
description: 34 pages; text updated to the published version, a few typos corrected and references updated
Remembering Labor Conflict as an American Battlefield
Creators: name: Shackel, Paul A.
Publisher: name: George Wright Sociey
Year: 2023
Subjects: labor
conflict
memorialization
unchecked capitalism
Lattimer Massacre

description: Anthracite coal extraction developed in northeastern Pennsylvania during the late 18th century, and through the early 20th century the industry was supported by new waves of immigration. New immigrant workers faced various forms of structural racism, often being underpaid, assigned the toughest jobs, and provided substandard housing. In 1897, as 400 men marched on a public road with the goal of closing a company mine, a sheriff and his posse fired upon them, killing 19. An additional six men died a few days later of gunshot wounds. While the incident, known as the Lattimer Massacre, was noted as one of the most tragic labor strikes in US history, the event faded from national public memory within a few decades. A type of historical amnesia settled in until 75 years later when the community and labor organizations erected a memorial near the site. Although annual commemorations are now held at the site, the Lattimer Massacre remains absent from textbooks and it is still not part of national public memory. Over the past two decades, as the Hispanic population has increased significantly in northeastern Pennsylvania, so, too, have anti-immigrant attitudes increased in the US. Now more than ever we need to remember the history of racism and xenophobia directed at immigrant laborers
Modelling and forecasting daily electricity load curves: a hybrid approach
Creators: name: Cho, Haeran
name: Goude, Yannig
name: Brossat, Xavier
name: Yao, Qiwei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We propose a hybrid approach for the modelling and the short-term forecasting of electricity loads. Two building blocks of our approach are (i) modelling the overall trend and seasonality by fitting a generalised additive model to the weekly averages of the load, and (ii) modelling the dependence structure across consecutive daily loads via curve linear regression. For the latter, a new methodology is proposed for linear regression with both curve response and curve regressors. The key idea behind the proposed methodology is the dimension reduction based on a singular value decomposition in a Hilbert space, which reduces the curve regression problem to several ordinary (i.e. scalar) linear regression problems. We illustrate the hybrid method using the French electricity loads between 1996 and 2009, on which we also compare our method with other available models including the EDF operational model.
The effects of fragmentation and disturbance of forest on mammals in a region of Gippsland, Victoria
Creators: name: Suckling., Graeme Charles
Publisher: name: Monash University
Year: 2021

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.
Eigenvalue estimate for the Dirac-Witten operator on locally reducible Riemannian manifolds
Creators: name: Chen, Yongfa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We get optimal lower bounds for the eigenvalues of the Dirac-Witten operator on locally reducible spacelike submanifold in terms of intrinsic and extrinsic expressions. The limiting-cases are also studied.
Screening of a charged impurity in graphene in a magnetic field
Creators: name: Sobol, O. O.
name: Pyatkovskiy, P. K.
name: Gorbar, E. V.
name: Gusynin, V. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electron states in the field of a charged impurity in graphene in a magnetic field are studied numerically. It is shown that a charged impurity removes the degeneracy of Landau levels converting them into bandlike structures. As the charge of impurity grows, the repulsion of sublevels of different Landau levels with the same value of orbital momentum takes place leading to the redistribution of the wave function profiles of these sublevels near the impurity. By studying the polarization effects, it is shown in agreement with the recent experiments that the effective charge of impurity can be very effectively tuned by chemical potential. If the chemical potential is situated inside a Landau level, then the charge of impurity is strongly diminished. In addition, the polarization function in this case has a peak at zero momentum, which leads to the sign-changing oscillations of the screened potential as a function of distance. If the chemical potential lies between the Landau levels, then the screened potential does not change sign, the screening is minimal, and the charged impurity can strongly affect the electron spectrum.
description: 11 pages, 7 figures; final version published in PRB
Anthracite Memories: Semantic Tagging and Coal Mining Oral Histories
Creators: name: Shackel, Paul A.
Publisher: name: Digital Repository at the University of Maryland
Year: 2023
Subjects: text mining
oral history
chronotope
mining communities
labor history

description: Oral histories are a critical source of information about lived experiences of past events. They have been analyzed both for their form – linguistically as texts, performances, and expressive accounts – and their content for understanding historic events and personal experiences. Here we focus on sentiment analysis approaches frequently applied to big data research questions, but less often utilized by anthropologists working with oral histories. Oral histories collected half a century ago in the anthracite mining communities of northeastern Pennsylvania are examined by considering methodological and historical questions. This project explores how oral history and data science might be productively combined to understand these now historic communities' everyday lives and working conditions. Bakhtin's (1981) concept of chronotope helps us understand the memory of these anthracite coal mining communities' daily life and working conditions.
Απλή Φοροαποφυγή και Αξιόποινη Φοροδιαφυγή, ιδίως υπό το πρίσμα της γενικής αντικαταχρηστικής ρήτρας του ά. 38 του Κώδικα Φορολογικής Διαδικασίας
Creators: name: Αναστασάκη, Γεωργία Πέτρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Φοροαποφυγή
Φοροδιαφυγή
Επιθετικός φορολογικός σχεδιασμός
Ρήτρα αντικατάχρησης
Εικονικές συναλλαγές
Tax avoidance
Tax evasion
Aggressive tax planning
Anti-abusive clause
Virtual transactions

description: Στόχος της παρούσας εργασίας ήταν η μελέτη των επιμέρους μορφών φορολογικής παραβατικότητας, οι οποίες παρουσιάζουν διαβάθμιση ως προς την απαξία τους. Αρχικά, αποσαφηνίστηκαν οι ανωτέρω μορφές, ήτοι ο απλός και επιθετικός φορολογικός σχεδιασμός, η καταχρηστική φοροαποφυγή και η αξιόποινη φοροδιαφυγή. Κατόπιν, εξετάστηκαν αυτές υπό το πρίσμα του ά. 38 του Κώδικα Φορολογικής Διαδικασίας, της λεγόμενης «γενικής ρήτρας αντικατάχρησης», προκειμένου να διαφανεί πότε η υιοθετούμενη από τον φορολογούμενο πολίτη τακτική υπάγεται στο πεδίο εφαρμογής της ρήτρας αυτής και άρα, τιμωρείται μόνον διοικητικά με χρηματικό πρόστιμο. Εν συνεχεία, εξετάστηκαν ορισμένες «γκρίζες ζώνες» φορολογικού σχεδιασμού, που κινούνται στο μεταίχμιο μεταξύ απλής φοροαποφυγής και αξιόποινης φοροδιαφυγής, καταλήγοντας στο συμπέρασμα ότι ενίοτε αυτές μεταπίπτουν στο πεδίο εφαρμογής του ά. 66 του Κώδικα Φορολογικής Διαδικασίας, στοιχειοθετώντας το ποινικό αδίκημα της φοροδιαφυγής, πληρουμένων πάντοτε των ειδικών ποιοτικών χαρακτηριστικών αυτής και των προβλεπόμενων ποσοτικών κριτηρίων. Τέλος, εξήγαμε το συμπέρασμα ότι η υπαγωγή μιας συμπεριφοράς στο ά. 38 ΚΦΔ δεν συνεπάγεται αυτόματα και τη στοιχειοθέτηση του ά. 66 ΚΦΔ.
description: The aim of the present study was to examine the individual forms of tax delinquency, which are graded in terms of their severity. Initially, the above forms were clarified, i.e. simple and aggressive tax planning, abusive tax avoidance and criminal tax evasion. Following, the aforementioned forms were examined in the light of Art. 38 of the Tax Procedure Code, the so-called 'general anti-abuse clause', in order to reveal when the practice adopted by the taxpayer falls within the scope of this clause and shall be therefore punishable only administratively by a fine. Subsequently, certain 'grey areas' of tax planning, which are on the borderline between simple tax avoidance and criminal tax evasion, were examined, concluding that sometimes they fall within the scope of the Article 66 of the Tax Procedure Code, constituting the criminal offence of tax evasion, provided that they fulfill at the same time the specific qualitative characteristics of tax evasion and the quantitative criteria provided for. Finally, we concluded that the inclusion of a conduct in the scope of the clause of Art. 38 (TPC) does not automatically imply the establishment of the Art. 66 (TPC).
description: Σε συνεργασία με: Νομικής (Δημοκρίτειο Πανεπιστήμιο Θράκης)
Richard Detje; Klaus Pickshaus; Hans-Jürgen Urban (Hg.): Arbeitspolitik kontrovers. Zwischen Abwehrkämpfen und Offensivstrategien, Hamburg, VSA-Verlag, ISBN 3-89965-148-0, 2005, 212 Seiten, Euro 16.80
Creators: name: Martens, Helmut
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2006
Subjects: subject: 300
subject: 650

description: Arbeit
Plunging breakers. Part 2. Droplet generation
Creators: name: Erinin, M.A.
name: Liu, C.
name: Wang, S.D.
name: Liu, X.
name: Duncan, J.H.
Publisher: name: Cambridge University Press
Year: 2023
Subjects: wave breaking
air/sea interactions

description: An experimental study of the dynamics and droplet production in three mechanically generated plunging breaking waves is presented in this two-part paper. In the present paper (Part 2), in-line cinematic holography is used to measure the positions, diameters (d ≥ 100 µm), times and velocities of droplets generated by the three plunging breaking waves studied in Part 1 (Erinin et al., J. Fluid Mech., vol. 967, 2023, A35) as the droplets move up across a horizontal measurement plane located just above the wave crests. It is found that there are four major mechanisms for droplet production: closure of the indentation between the top surface of the plunging jet and the splash that it creates, the bursting of large bubbles that were entrapped under the plunging jet at impact, splashing and bubble bursting in the turbulent zone on the front face of the wave and the bursting of small bubbles that reach the water surface at the crest of the non-breaking wave following the breaker. The droplet diameter distributions for the entire droplet set for each breaker are fitted with power-law functions in separate small- and large-diameter regions. The droplet diameter where these power-law functions cross increases monotonically from 820 to 1480 µm from the weak to the strong breaker, respectively. The droplet diameter and velocity characteristics and the number of the droplets generated by the four mechanisms are found to vary significantly and the processes that create these differences are discussed.
Posthumous papers of the Pickwick Club, no. 02
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Men--Societies and clubs
valueUri: http://id.worldcat.org/fast/1016037
subject: Manners and customs
valueUri: http://id.worldcat.org/fast/1007815

description: Tells the story of Samuel Pickwick, a good natured elderly gentleman, president of the Pickwick Club. With three other members of the club, Pickwick travels around the English countryside, where he becomes caught up in a series of comic adventures, and romantic and legal misunderstandings. Although light in tone, the novel foreshadows the social concerns that would emerge in Dickens' later work. Issued monthly from April 1836 to November 1837. Chapters 3-5: Chapter 3: A new acquaintance. The stroller's tale-- a disagreeable interruption; and an unpleasant rencontre Chapter 4: A field day and bivouac; more new friends; and an invitation to the country Chapter 5: A short one showing, among other matters, how Mr. Pickwick undertook to drive, and Mr. Winkle to ride; and how they both did it
Plunging breakers. Part 1. Analysis of an ensemble of wave profiles
Creators: name: Erinin, M.A.
name: Liu, X.
name: Wang, S.D.
name: Duncan, J.H.
Publisher: name: Cambridge University Press
Year: 2023
Subjects: wave breaking
air/sea interactions

description: An experimental study of the dynamics and droplet production in three mechanically generated plunging breaking waves is presented in this two-part paper. In the present paper (Part 1), the dynamics of the three breakers are studied through measurements of the evolution of their free surface profiles during 10 repeated breaking events for each wave. The waves are created from dispersively focused wave packets generated with three wave maker motions that differ primarily by small changes in their overall amplitude. Breaker profiles are measured with a cinematic laser-induced fluorescence technique covering a streamwise region of approximately one breaker wavelength and over a time of 3.4 breaker periods. The aligned profile data is used to create spatio-temporal maps of the ensemble average surface height and the standard deviation of both the local normal distance and the local arc length relative to the instantaneous mean profile. It is found that the mean and standard deviation maps contain strongly correlated localized features and indicate that the transition from laminar to turbulent flow is a highly repeatable process. Regions of high standard deviation include the splash created by the plunging jet impact and subsequent splash impacts at the front of the breaking region as well as the site where the air pocket entrained under the plunging jet at the moment of jet tip impact comes to the surface and pops. In Part 2 (Erinin et al., J. Fluid Mech., vol. 967, 2023, A36), these features are used to interpret various features of the distributions of droplet number, diameter and velocity.
Optical decoherence and spectral diffusion in an erbium-doped silica glass fiber featuring long-lived spin sublevels
Creators: name: Veissier, Lucile
name: Falamarzi, Mohsen
name: Lutz, Thomas
name: Saglamyurek, Erhan
name: Thiel, Charles W.
name: Cone, Rufus L.
name: Tittel, Wolfgang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Understanding decoherence in cryogenically-cooled rare-earth-ion doped glass fibers is of fundamental interest and a prerequisite for applications of these material in quantum information applications. Here we study the coherence properties in a weakly doped erbium silica glass fiber motivated by our recent observation of efficient and long-lived Zeeman sublevel storage in this material and by its potential for applications at telecommunication wavelengths. We analyze photon echo decays as well as the potential mechanisms of spectral diffusion that can be caused by coupling with dynamic disorder modes that are characteristic for glassy hosts, and by the magnetic dipole-dipole interactions between $Er^{3+}$ ions. We also investigate the effective linewidth as a function of magnetic field, temperature and time, and then present a model that describes these experimental observations. We highlight that the operating conditions (0.6 K and 0.05 T) at which we previously observed efficient spectral hole burning coincide with those for narrow linewidths (1 MHz) { an important property for applications that has not been reported before for a rare-earth-ion doped glass.
description: 6 pages and 5 figures
Posthumous papers of the Pickwick Club, no. 11
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Men--Societies and clubs
valueUri: http://id.worldcat.org/fast/1016037
subject: Manners and customs
valueUri: http://id.worldcat.org/fast/1007815

description: Tells the story of Samuel Pickwick, a good natured elderly gentleman, president of the Pickwick Club. With three other members of the club, Pickwick travels around the English countryside, where he becomes caught up in a series of comic adventures, and romantic and legal misunderstandings. Although light in tone, the novel foreshadows the social concerns that would emerge in Dickens' later work. Issued monthly from April 1836 to November 1837. Chapters 29-31: Chapter 29: How the Pickwickians made and cultivated the acquaintance of a couple of nice young men belonging to one of the liberal professions; how they disported themselves on the ice; and how their visit came to a conclusion Chapter 30: Which is all about the law, and sundry great authorities learned therein Chapter 31: Describes, far more fully than the court newsman ever did, a bachelor's party, given by Mr. Bob Sawyer at his lodgings in the borough
Vitamin D deficiency aggravates COVID-19: systematic review and meta-analysis
Creators: name: Pereira, Marcos
name: Damascena, Alialdo Dantas
name: Azevedo, Laylla Mirella Galvão
name: de Almeida Oliveira, Tarcio
name: da Mota Santana, Jerusa
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: There is still limited evidence regarding the influence of vitamin D in people with COVID-19. In this systematic review and meta-analysis, we analyze the association between vitamin D deficiency and COVID-19 severity, via an analysis of the prevalence of vitamin D deficiency and insufficiency in people with the disease. Five online databases—Embase, PubMed, Scopus, Web of Science, ScienceDirect and pre-print Medrevix were searched. The inclusion criteria were observational studies measuring serum vitamin D in adult and elderly subjects with COVID-19. The main outcome was the prevalence of vitamin D deficiency in severe cases of COVID-19. We carried out a meta-analysis with random effect measures. We identified 1542 articles and selected 27. Vitamin D deficiency was not associated with a higher chance of infection by COVID-19 (OR = 1.35; 95% CI = 0.80–1.88), but we identified that severe cases of COVID-19 present 64% (OR = 1.64; 95% CI = 1.30–2.09) more vitamin D deficiency compared with mild cases. A vitamin D concentration insufficiency increased hospitalization (OR = 1.81, 95% CI = 1.41–2.21) and mortality from COVID-19 (OR = 1.82, 95% CI = 1.06–2.58). We observed a positive association between vitamin D deficiency and the severity of the disease.
Coronal Dynamic Activities in the Declining Phase of a Solar Cycle
Creators: name: Jang, Minhwan
name: Woods, T. N.
name: Hong, Sunhak
name: Choe, G. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been known that some solar activity indicators show a double-peak feature in their evolution through a solar cycle, which is not conspicuous in sunspot number. In this letter, we investigate the high solar dynamic activity in the declining phase of the sunspot cycle by examining the evolution of polar and low latitude coronal hole areas and the statistics of splitting and merging events of coronal holes and coronal mass ejections detected by SOHO/LASCO C3 in solar cycle 23. Although the total coronal hole area is at its maximum near the sunspot minimum, in which polar coronal holes prevail, it shows a comparable second maximum in the declining phase of the cycle, in which low latitude coronal holes are dominant. The events of coronal hole splitting or merging, which are attributed to surface motions of magnetic fluxes, are also mostly populated in the declining phase of the cycle. The far-reaching C3 coronal mass ejections are also over-populated in the declining phase of the cycle. From these results we suggest that solar dynamic activities due to the horizontal motions of magnetic fluxes extend far in the declining phase of the sunspot cycle.
Personal history, adventures, experience, & observation of David Copperfield, the younger, no. 02
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018

description: Issued monthly from May, 1849 to November 1850 in blue paper wrappers. Chapters 4-6: Chapter 4. I fall into disgrace -- Chapter 5. I am sent away from home -- Chapter 6. I enlarge my circle of acquaintance
Application of electrochromic materials to flexible substrates
Creators: name: Subramanian.., Priya
Publisher: name: Monash University
Year: 2021

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.
Does Interacting with Women Encourage Civic and Prosocial Attitudes? Evidence from Simulated Contact Experiments in Saudi Arabia and Kuwait
Creators: name: Jones, Clavert W.
Publisher: name: Cambridge University Press
Year: 2023
Subjects: gender
Middle East
diversity
civic
prosocial
patriarchy
experiments

description: Research suggests that interacting with women may encourage civic and prosocial attitudes, yet findings to date have been limited to democracies notable for their egalitarian norms. Using simulated contact experiments under controlled conditions, this article tests hypotheses for the first time in Saudi Arabia and Kuwait, arguably “hard cases” given persistent norms of patriarchy and gender segregation. Yet, despite stronger contexts for male dominance, results suggest that interacting with women may indeed steer Saudi and Kuwaiti men toward more civic and other-regarding orientations, including aspects of tolerance, egalitarianism, openness, and community rule-following. These findings add much-needed comparative perspective to experimental research on mixed-gender dynamics and align with broader work highlighting the benefits of diverse interactions for groups and nations.
Posthumous papers of the Pickwick Club, no. 01
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Men--Societies and clubs
valueUri: http://id.worldcat.org/fast/1016037
subject: Manners and customs
valueUri: http://id.worldcat.org/fast/1007815

description: Tells the story of Samuel Pickwick, a good natured elderly gentleman, president of the Pickwick Club. With three other members of the club, Pickwick travels around the English countryside, where he becomes caught up in a series of comic adventures, and romantic and legal misunderstandings. Although light in tone, the novel foreshadows the social concerns that would emerge in Dickens' later work. Issued monthly from April 1836 to November 1837. Chapters 1-2: Chapter 1: The Pickwickians Chapter 2: The first day's journey, and the first evening's adventures; with their consequences
Direct approach to L^p estimates in homogenization theory
Creators: name: Schweizer, Ben
name: Melcher, Christof
Publisher: name: Springer-Verlag
Year: 2008
Subjects: subject: heterogeneous media
subject: elliptic systems
subject: regularity theory
subject: BMO
subject: two-scale convergence
subject: 510

description: We derive interior L^p-estimates for solutions of linear elliptic systems with oscillatory coefficients. The estimates are independent of e, the small length scale of the rapid oscillations. So far, such results are based on potential theory and restricted to periodic coefficients. Our approach relies on BMO-estimates and an interpolation argument, gradients are treated with the help of finite differences. This allows to treat coefficients that depend on a fast and a slow variable. The estimates imply an L^p-corrector result for approximate solutions.
Investigations on the decay length method for the measurement of the top quark mass at the Atlas experiment
Creators: name: Walbersloh, Jörg
Publisher: name: Technische Universität Dortmund
Year: 2009
Subjects: subject: Top quark
subject: ATLAS
subject: CERN
subject: Zerfallslänge
subject: Teilchenphysik
subject: LHC
subject: 530

description: The precision of the determination of the top quark mass at particle collider experiments with methods which rely on jet energy measurements is limited due to the jet energy scale. This thesis presents a method that relies almost exclusively on tracking and thus has complementary uncertainties with respect to other methods. This so-called decay length method correlates the mean transverse decay length of B-Hadrons originating from top quark decays to the mass of the initial top quark. The thesis discusses the application the method for the semileptonic decay channel of tt-Events at the ATLAS detector and presents an estimate for uncertainties based on MonteCarlo simulations.