cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The intersection of Finite State Automata and Definite Clause Grammars
Creators: name: van Noord, Gertjan
Publisher: name: arXiv
Year: 1995
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Bernard Lang defines parsing as the calculation of the intersection of a FSA (the input) and a CFG. Viewing the input for parsing as a FSA rather than as a string combines well with some approaches in speech understanding systems, in which parsing takes a word lattice as input (rather than a word string). Furthermore, certain techniques for robust parsing can be modelled as finite state transducers. In this paper we investigate how we can generalize this approach for unification grammars. In particular we will concentrate on how we might the calculation of the intersection of a FSA and a DCG. It is shown that existing parsing algorithms can be easily extended for FSA inputs. However, we also show that the termination properties change drastically: we show that it is undecidable whether the intersection of a FSA and a DCG is empty (even if the DCG is off-line parsable). Furthermore we discuss approaches to cope with the problem.
description: 7 pages. Requires pictexwd package. To appear in ACL 95
Modern health worries: Deriving two measurement invariant short scales for cross-cultural research with Ant Colony Optimization
Creators: name: Olaru, Gabriel
name: Wilhelm, Oliver
name: Nordin, Steven
name: Witthöft, Michael
name: Köteles, Ferenc
Publisher: name: Universität Kassel
Year: 2019
Subjects: subject: 150

description: Gefördert durch den Publikationsfonds der Universität Kassel
SOL Engine
Creators: name: Eichler, Jeronimo S. A.
name: Casanova, Marco Antonio
name: Leme, Luiz André Portes Paes
name: Furtado, Antonio Luis
Publisher: name: figshare
Year: 2019
Subjects: subject: 80109 Pattern Recognition and Data Mining
subject: FOS: Computer and information sciences
subject: 80704 Information Retrieval and Web Search
subject: FOS: Media and communications

description: A framework that performs serendipity search among Linked Data datasets defined as a query orchestration process.
The query orchestrattion process consists of given a SPARQL query retrieve its results but also performing serendipity patterns.
 The serendipity patterns are inspired by basic characteristics of serendipitous events, such as, analogy and disturbance, and can be used for augmenting the results with additional information, suggesting alternative queries or rebalancing the results.

More information are included in the source project.
Cosmic String in Scalar-Tensor Gravities
Creators: name: Guimarães, Maria Emília X.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a local cosmic string described by the Abelian-Higgs model in the framework of scalar-tensor gravities. We find the metric of the cosmic string in the weak-field approximation. The propagation of particles and light is analysed in this background. This analysis shows that the (unperturbed) cosmic string in scalar-tensor theories presents some analogous features to the wiggly cosmic string in General Relativity.
description: 16 pages, Latex, no figures
Renormalization Group Evolution of Dimension-seven Operators in Standard Model Effective Field Theory and Relevant Phenomenology
Creators: name: Liao, Yi
name: Ma, Xiao-Dong
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We showed in a previous publication that there are six independent dimension-seven operators violating both lepton and baryon numbers ($L=-B=1$) and twelve ones violating lepton but preserving baryon number ($L=2,~B=0$) in standard model effective field theory, and we calculated one-loop renormalization for the former six operators. In this work we continue our efforts on renormalization of the operators. It turns out this could become subtle because the operators are connected by nontrivial relations when fermion flavors are counted. This kind of relations does not appear in lower dimensional operators. We show how we can extract anomalous dimension matrix for a flavor-specified basis of operators from counterterms computed for the above flavor-blind operators without introducing singular inverse Yukawa coupling matrices. As a phenomenological application, we investigate renormalization group effects on nuclear neutrinoless double $β$ decay. We also discuss very briefly its analog in the meson sector, $K^\pm\toπ^\mpμ^\pmμ^\pm$, and indicate potential difficulties to compute its decay width.
description: v1: 18 pages, 2 figures, 5 tables. v2: 21 pages, 3 figures, 5 tables, to appear in jhep; minor revisions made without changing results: (1) corrected typos; (2) added clarifying statements and three refs; (3) Appendix expanded by an explicit example of calculation; (4) corrected an error in eq. (13), thanks to the referee; (5) replaced fig. 2 due to a numerical problem
The effect of rhythm unit length on the duration of vowels in Serbian
Creators: name: Marković, Maja
name: Milićev, Tanja
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: rhythm unit; stressed vowel; stress-timed; syllable-timed languages; vocalic duration

description: The paper presents the results of two studies of vowel duration depending on the length of rhythm unit in standard Serbian. The goal of the studies was to find out whether the number of unstressed syllables in one rhythm unit affects the duration of stressed vowels in Serbian. The results of both studies reveal a tendency towards the reduction of the duration of stressed vowels with the expansion of a rhythm unit. The studies were carried out in order to determine the nature of rhythm in Serbian and establish its typology (stress-timed or syllable-timed). The general purpose of the research was to establish whether vocalic length in relation to the rhythm unit length can be applied in speech synthesis to improve the performance of the existing speech synthesizer for the Serbian language.
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
The role of morpho-phonological salience in tense marking: a comparison between Greek and Cypriot-Greek SLI children*
Creators: name: Mastropavlou, Maria
name: Petinou, Kakia
name: Tsimpli, Ianthi Maria
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: morpho-phonological salience; compensation; augment; contractibility

description: The current study investigates past formation in Standard Greek (SG) and Cypriot Greek (CYG) measuring the associated morphophonological salience and its effects on SLI grammars. Elicited production of real and pseudo verbs was carried out with SLI and TD groups from each variety. Results show that phonological salience of past formation affects SLI but not TD performance. Between varieties, the GR/SLI group performs better than CYG/SLI group with real verbs. We attribute this finding to the difference in the status of the augment in each variety.
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
Institutional Framework and Dysfunctionality of the Transitional Chinese Wage Bargaining Regime
Creators: name: Zenglein, Max J.
Publisher: name: Universität Kassel
Year: 2018
Subjects: subject: China
subject: industrial relations
subject: economic systems
subject: institutional economics
subject: wage bargaining
subject: wage determination
subject: emerging economies
subject: 320
subject: China
subject: Arbeitsbeziehungen
subject: Institutionenökonomie
subject: Lohn
subject: Tarifverhandlung

description: Die gedruckte Ausg. ist im Rainer Hampp Verlag, Augsburg, München (www.Hampp-Verlag.de) erschienen.
Spectral Densities of Response Functions for the O(3) Symmetric Anderson and Two Channel Kondo Models
Creators: name: Bradley, S. C.
name: Bulla, R.
name: Hewson, A. C.
name: Zhang, G-M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The O(3) symmetric Anderson model is an example of a system which has a stable low energy marginal Fermi liquid fixed point for a certain choice of parameters. It is also exactly equivalent, in the large U limit, to a localized model which describes the spin degrees of freedom of the linear dispersion two channel Kondo model. We first use an argument based on conformal field theory to establish this precise equivalence with the two channel model. We then use the numerical renormalization group (NRG) approach to calculate both one-electron and two-electron response functions for a range of values of the interaction strength U. We compare the behaviours about the marginal Fermi liquid and Fermi liquid fixed points and interpret the results in terms of a renormalized Majorana fermion picture of the elementary excitations. In the marginal Fermi liquid case the spectral densities of all the Majorana fermion modes display a |omega| dependence on the lowest energy scale, and in addition the zero Majorana mode has a delta function contribution. The weight of this delta function is studied as a function of the interaction U and is found to decrease exponentially with U for large U. Using the equivalence with the two channel Kondo model in the large U limit, we deduce the dynamical spin susceptibility of the two channel Kondo model over the full frequency range. We use renormalized perturbation theory to interpret the results and to calculate the coefficient of the ln omega divergence found in the low frequency behaviour of the T=0 dynamic susceptibility.
description: 26 pages, 18 figures, to be published in Eur. Phys. J. B
Discourse organising nouns in American and Greek university students’ argumentative essays: A contrastive study
Creators: name: Mattheoudakis, Marina
name: Hatzitheodorou, Anna-Maria
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: learner corpora; GRICLE; lexical cohesion; discourse organising nouns; stance

description: This paper investigates how argumentation is constructed through nouns in argumentative essays. Data are drawn from the Greek Corpus of Learner English (GRICLE) and two native corpora (LOCNESS and PELCRA). The study focuses on illocutionary, language activity and mental process nouns (cf. Francis 1994). Native speakers use more discourse organising nouns than Greek students and incorporate them effectively in their argumentation. These nouns have a clear cohesive function, can be modified by adjectives or a reference can be made to them. Greek students use those nouns mostly to refer to the prompt of the essay and provide agreement or disagreement with the topic.
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
Hoplitis epeoliformis
Creators: name: Norfolk, Olivia
name: Dathe, Holger H.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Hoplitis
Hoplitis epeoliformis

description: Hoplitis epeoliformis (DUCKE, 1899)
 Material: May 2013 - Wadi Itlah 28°35'N, 33°55'E (1).
 Details: Observed foraging on Peganum harmala L.
 Distribution: Northern Africa and Jordan. First record for Egypt.
description: Published as part of Norfolk, Olivia & Dathe, Holger H., 2019, Filling the Egyptian pollinator knowledge-gap: checklist of flower-visiting insects in South Sinai, with new records for Egypt, pp. 175-184 in Beiträge Zur Entomologie = Contributions to Entomology 69 (1) on page 178, DOI: 10.21248/contrib.entomol.69.1.175-184, http://zenodo.org/record/5742708
An $^{27}$Al$^{+}$ quantum-logic clock with systematic uncertainty below $10^{-18}$
Creators: name: Brewer, S. M.
name: Chen, J. -S.
name: Hankin, A. M.
name: Clements, E. R.
name: Chou, C. W.
name: Wineland, D. J.
name: Hume, D. B.
name: Leibrandt, D. R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We describe an optical atomic clock based on quantum-logic spectroscopy of the $^1$S$_0$ $\leftrightarrow$ $^3$P$_0$ transition in $^{27}$Al$^{+}$ with a systematic uncertainty of ${9.4 \times 10^{-19}}$ and a frequency stability of ${1.2\times10^{-15}/\sqrtτ}$. A $^{25}$Mg$^{+}$ ion is simultaneously trapped with the $^{27}$Al$^{+}$ ion and used for sympathetic cooling and state readout. Improvements in a new trap have led to reduced secular motion heating, compared to previous $^{27}$Al$^{+}$ clocks, enabling clock operation with ion secular motion near the three-dimensional ground state. Operating the clock with a lower trap drive frequency has reduced excess micromotion compared to previous $^{27}$Al$^{+}$ clocks. Both of these improvements have led to a reduced time-dilation shift uncertainty. Other systematic uncertainties including those due to blackbody radiation and the second-order Zeeman effect have also been reduced.
description: 5 pages 4 figures + supplemental material 9 pages 5 figures
The Implementation of International and European Occupational Safety and Health Standards into the National Legislation of Ukraine
Creators: name: Yarmolyuk-Kröck, Kateryna
Publisher: name: Universität Kassel
Year: 2018
Subjects: subject: international labour standards
subject: implementation
subject: occupational safety and health
subject: labour inspection
subject: EU-Ukraine Association Agreement
subject: 320
subject: Ukraine
subject: Gesetzgebung
subject: Internationales Arbeitsrecht
subject: Arbeitssicherheit
subject: Gesundheitsförderung

description: Die gedruckte Ausg. ist im Rainer Hampp Verlag, Augsburg, München (www.Hampp-Verlag.de) erschienen.
The function of semantically motivated suffixes in gender inversion of Modern Greek derivatives
Creators: name: Mela-Athanasopoulou, Elizabeth
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: semantically motivated; natural and grammatical gender

description: The main issue of this study is to show that semantically motivated suffixes, such as diminutives and augmentatives, for instance, may change the grammatical gender of nouns in highly inflected languages such as Modern Greek (henceforth MG). For example, a semantic marker of diminution (Melissaropoulou & Ralli 2008), say {-aki} of neuter (NTR) gender, attached to a stem of masculine (MSC) gender (by nature), will convert it into neuter, e.g. andr(as)MSC ‘man’ (natural gender), plus the diminutive {-aki}NTR will invert to andrakiNTR ‘little man’. Similarly, korits(i)NTR ‘girl’, feminine (natural gender), plus the augmentative {-aros}MSC will become koritsaros ‘big girl’. Also aet(os)MSC ‘eagle’ masculine (natural gender), plus the diminutive {-opoulo}NTR will turn into aetopouloNTR ‘baby eagle’. Moreover, other categories of semantically motivated suffixes capable of changing gender, such as the case of –ieraFEM or –ierisMSC denoting a container and an agent respectively (Roché 2000), as well as –iaFEM standing for a fruit tree will also be investigated. The scope of the paper will be to show not only that, in MG, gender is inherent to the stem noun and not to the word (Ralli 2002), but also discuss both natural and grammatical gender (normally shown formally by an inflectional suffix) as an inevitable consequence of gender inversion by means of the afore mentioned suffixes. The notion of agreement regarding the gender of the noun qualifiers, e.g. enasMSC isichosMSC andrasMSC, ‘a quiet man’ vs. enaNTR isichoNTR andrakiNTR ‘a quiet little man’, will also be investigated as a result of gender inversion (Anastasiadi et al 2003). Furthermore, particular attention will be paid on the fact that the natural/biological gender remains the same at least semantically –as it is inherent to the stem- despite the attachment of a different gender grammatical suffix, only when the latter is either a diminutive or an augmentative. In all other cases, where the gender is indicated by form only, and not by sex, i.e. it is not natural, it converts to the gender of the suffix, e.g. tsaiNTR ‘tea’ plus –ieraFEM/‘container’ will be tsaγieraFEM ‘teapot’; miloNTR ‘apple’ plus –iaFEM/’fruit tree’ will be miliaFEM ‘apple tree’.
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
CP Violating B Decays in the Standard Model and Supersymmetry
Creators: name: Ciuchini, M.
name: Franco, E.
name: Martinelli, G.
name: Masiero, A.
name: Silvestrini, L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the uncertainties of the Standard Model (SM) predictions for CP violating B decays and investigate where and how supersymmetric (SUSY) contributions may be disentangled. The first task is accomplished by letting the relevant matrix elements of the effective Hamiltonian vary within certain ranges. The SUSY analysis makes use of a formalism which allows to obtain model-independent results. We show that in some cases it is possible a) to measure the CP B-\bar{B} mixing phase and b) to discriminate the SM and SUSY contributions to the CP decay phases. The golden-plated decays to this purpose are the B \to ϕK_S and B \to K_S π^0 channels.
description: 8 pages, LaTeX
The use of nominal elements in L2 Greek
Creators: name: Nerantzi, Myrto
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: clitics; articles; L2 Greek

description: The present paper investigates the use of the definite/indefinite article and pronominal object clitics in L2 Greek of Pontic-Greek immigrants from Georgia, and seeks to define the status of clitic and article omission attested in the data. Previous research has shown that the properties of these elements give rise to persistent acquisition problems (Tsimpli 2003). Accordingly, and in view of the absence of clitics and articles in L1 Russian and Georgian, which are the languages predominantly used before immigration, the prediction is that the use of these elements will not be target-like.
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
A semi-automated method to reveal the evolution of each sunspot group in a solar cycle
Creators: name: Çakmak, Hikmet
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sunspots are the most important indicator of the magnetic activity on the solar surface during a cycle. Every sunspot group is formed and shaped by the magnetic field of the Sun. Hence, the magnetic field intensity shows itself as the size of a sunspot group area on the surface. This shows that getting the development or evolution of sunspot groups over time means getting the change of magnetic field intensity during same interval. Here, to reveal the evolution of sunspot groups in a cycle, a method called Solar Cycle Analyzer Tool (SCAT) is presented. This method was developed as a part of Computer-Aided Measurements for Sunspots (CAMS) because the same subroutines and subprograms were used for calculations (Cakmak 2014). The developed software tracks sunspot groups every day and gives them the same group number. The confirmation is made by the user to prevent counting re-formations as a continuation of an old group in the same active region. With this method, the evolution of every sunspot group can be listed for each cycle year besides other cycle features like the daily and monthly sunspot relative numbers and distribution frequency of the sunspot group types. Since 2015, SCAT is being used to get data for the annual reports of Istanbul University Observatory.
description: 11 pages, including 13 figures and 1 table, accepted for publication in Astrophysics and Space Science
Der „Sekundenkleber“ der Stummelfüßer
Strategien der Natur als Vorbild für nachhaltige Biomaterialien
Creators: name: Baer, Alexander
name: Oliveira, Ivo De Sena
name: Schmidt, Stephan
name: Harrington, Matthew J.
name: Mayer, Georg
Publisher: name: Universität Kassel
Year: 2019
Subjects: subject: Onychophora
subject: Stummelfüßer
subject: Polymere
subject: Proteine
subject: 570

description: Gefördert im Rahmen des Projekts DEAL
Filling the Egyptian pollinator knowledge-gap: checklist of flower-visiting insects in South Sinai, with new records for Egypt
Creators: name: Norfolk, Olivia
name: Dathe, Holger H.
Publisher: name: Contributions to Entomology = Beiträge zur Entomologie
Year: 2019

description: Flower visitor surveys were conducted across the St Katherine Protectorate of South Sinai, Egypt, between April-July 2012 and 2013. We present a checklist of 112 species of flower visitors belonging to the orders Coleoptera, Diptera, Hemiptera, Hymenoptera and Lepidoptera. The Hymenoptera were the most diverse group of flower visitors, consisting of 69 species from eight families: Apidae (14), Colletidae (8), Crabronidae (10), Halictidae (13), Megachilidae (19), Scoliidae (1), Sphecidae (2) and Vespidae (2). We recorded nine species that were endemic to the region and thirteen that were new to the Egyptian fauna, including one new to science, Hylaeus oliviae Dathe, 2015. The study provides a valuable initial checklist of pollinators within the St Katherine Protectorate, but the description of novel species and the high proportion of new records for Egypt suggest that species numbers are likely to be underestimated. We highlight the need for future research into Egyptian pollinator fauna, particularly within the St Katherine Protectorate where endemic bees are still being described.
description: Contributions to Entomology = Beiträge zur Entomologie, Vol 69 No 1 (2019)
Tunneling wave function of the universe II: the backreaction problem
Creators: name: Vilenkin, Alexander
name: Yamada, Masaki
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The tunneling wave function of the universe is calculated exactly for a de Sitter minisuperspace model with a massless conformally coupled scalar field, both by solving the Wheeler-DeWitt equation and by evaluating the Lorentzian path integral. The same wave function is found in both approaches. The back-reaction of quantum field fluctuations on the scale factor amounts to a constant renormalization of the vacuum energy density. This is in contrast to the recent suggestion of Feldbrugge $et$ $al.$ that the back-reaction should diverge when the scale factor gets small, $a \to 0$. Similar results are found for a massive scalar field in the limit of a large mass. We also verified that the tunneling wave function can be expressed as a transition amplitude from a universe of vanishing size with the scalar field in the state of Euclidean vacuum, as it was suggested in our earlier work.
description: 9 pages; v2: Path integral analysis is extended to a massive scalar field
Sounds Serbian? Acoustic properties of Serbian EFL students' speech
Creators: name: Paunović, Tatjana
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 2011
Subjects: EFL students’ vowels; acoustic properties; formant frequency; duration

description: This paper presents the findings of a study of the acoustic properties of Serbian EFL students' vowels. The participants were 12 junior-year students of the English Department. Their vowel production was recorded in three different contexts, i.e. speaking tasks: reading words in citation form, reading a text aloud, and speaking. The acoustic measurements included vowel duration and F1 and F2 formant frequency values. The results showed that neither the production of vowel qualities nor the duration differences used by the students were without problems
description: Selected papers on theoretical and applied linguistics, Vol 19 (2011): Selected Papers from the 19th International Symposium on Theoretical and Applied Linguistics, Thessaloniki 3-5 April 2009
Bembecinus hebraeus DE BEAUMONT 1968
Creators: name: Norfolk, Olivia
name: Dathe, Holger H.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Bembecinus
Bembecinus hebraeus

description: Bembecinus hebraeus DE BEAUMONT, 1968
 Material: June 2013 - Wadi Itlah 28°35'N, 33°55'E (1 specimen, sex unknown) Wadi Gebel 28°32'N, 33°55'E (1 specimen, sex unknown). C.S-E.
 Distribution: Previously only recorded in Israel. First record for Egypt.
description: Published as part of Norfolk, Olivia & Dathe, Holger H., 2019, Filling the Egyptian pollinator knowledge-gap: checklist of flower-visiting insects in South Sinai, with new records for Egypt, pp. 175-184 in Beiträge Zur Entomologie = Contributions to Entomology 69 (1) on page 179, DOI: 10.21248/contrib.entomol.69.1.175-184, http://zenodo.org/record/5742708
Strange / anti-strange asymmetry in the nucleon sea
Creators: name: Christiansen, H. R.
name: Magnin, J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the non-perturbative structure of the strange sea of the nucleon within a meson cloud picture. In a low $Q^2$ approach in which the nucleon is viewed as a three valon bound state, we evaluate the probability distribution of an in-nucleon Kaon-Hyperon pair in terms of splitting functions and recombination. The resulting kaon and hyperon probability densities are convoluted with suitable strange distributions inside the meson and baryon in order to obtain non-perturbative contributions to the strange sea of the nucleon. We find a structured strange/anti-strange asymmetry, displaying a clear excess of quarks (anti-quarks) for large (small) momentum fractions
description: Modified version, several improvements. To appear in Phys. Lett. B
High-order energy-conserving Line Integral Methods for charged particle dynamics
Creators: name: Brugnano, L.
name: Montijano, J. I.
name: Rández, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L05, 65P10

description: In this paper we study arbitrarily high-order energy-conserving methods for simulating the dynamics of a charged particle. They are derived and studied within the framework of Line Integral Methods (LIMs), previously used for defining Hamiltonian Boundary Value Methods (HBVMs), a class of energy-conserving Runge-Kutta methods for Hamiltonian problems. A complete analysis of the new methods is provided, which is confirmed by a few numerical tests.
description: 24 pages, 3 figures, 2 tables - few typos fixed
Modellierung der Schädigungsentwicklung und Lebensdauerprognose für Stahlklebverbindungen unter hochzyklischer Ermüdungsbelastung
Creators: name: Kroll, Ulrich
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: Schädigung
subject: Strukturklebstoff
subject: Stahlklebverbindung
subject: Betriebsfestigkeit
subject: Kontinuumsschädigungsmechanik
subject: 600
subject: Schädigung
subject: Strukturklebstoff
subject: Klebeverbindung
subject: Betriebsfestigkeit
subject: Schadensmechanik
subject: Lebensdauer

description: Zugleich: Dissertation, Universität Kassel, 2019
ESM: (A) auxiliary proofs; (B) application to polyatomic chains; (C) comparison with previously published results, and (D) effective description of nearby dispersion branches from A rational framework for dynamic homogenization at finite wavelengths and frequencies. 13 August 2018 12 February 2019
Creators: name: Guzina, Bojan B.
name: Shixu Meng
name: Oudghiri-Idrissi, Othman
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 20301 Acoustics and Acoustical Devices; Waves
subject: FOS: Physical sciences

description: Appendix A - proofs of the featured lemmas and theorems; Appendix B - specialization of the mathematical framework to polyatomic chains; Appendix C - comparison of the numerical results with previously published data, and Appendix D - Detailed numerical analysis of nearby dispersion branches.
Universality class of alternative phase space and Van der Waals criticality
Creators: name: Dehyadegari, Amin
name: Majhi, Bibhas Ranjan
name: Sheykhi, Ahmad
name: Montakhab, Afshin
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new perspective toward thermodynamic phase space of Reisser-Nordstrom (RN) black holes in an anti-de-Sitter (AdS) spaces was recently proposed [Phys. Lett. B 768 (2017) 235], where the square of the electric charge $(Q^2)$ of black hole was regarded as a thermodynamic variable and the cosmological constant (pressure) as a fixed quantity. In this paper, we address the universality class and critical properties of any AdS black hole in this alternative phase space. We disclose the critical behavior of AdS black hole in the alternative phase space in which a continuous phase transition happens and in a very general framework, independent of the spacetime metric. Based on the expansion of the equation of state and Landau thermodynamic potential in the neighborhood of a critical point in the alternative phase space, we confirm that the set of values for critical exponents for generic black hole is analogous to the Van der Waals fluid system. Finally, we reveal that the scalar curvature in geometry thermodynamic diverges at the critical point of black hole. Our study shows that the approach here is powerful enough to investigate the critical behavior of any black holes and further supports the viability of the alternative viewpoint toward phase space of black holes suggested in [Phys. Lett. B 768 (2017) 235].
description: 6 pages, two columns
Ergodic versus nonergodic behavior in oxygen deficient high-T_c superconductors
Creators: name: Sergeenkov, Sergei A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The oxygen defects induced phase transition from nonergodic to ergodic state in superconductors with intragrain granularity is considered within the superconductive glass model. The model predictions are found to be in a qualitative agreement with some experimental observations in deoxygenated high-T_c single crystals.
Aleochara (Ceranota) subtumida
Creators: name: Assing, Volker
name: Schülke, Michael
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Aleochara
Aleochara subtumida

description: Aleochara (Ceranota) subtumida (HOCHHUTH, 1849)
 Aleochara (Polychara) khnzoriani AMIRYAN,1999b: 62 f.; syn. nov.
 Type material examined: Holotype: “ Armenia, Goris, sel. [village] Tatev, pod kamnem [under stones], 21.05.88, c. Kalashian M. / Type / Aleochara khnzoriani sp. n. Det. Amiryan A / Aleochara subtumida (Hochhuth), det. V. Assing 2018” (IZAY).
 Comment: In the original description of Aleochara khnzoriani, which is based on a unique female, AMIRYAN (1999b) attributed the species to the subgenus Polychara MULSANT & REY, 1874, now a synonym of Xenochara MULSANT & REY, 1874. An examination of the holotype, however, revealed that the specimen belongs to the subgenus Ceranota STEPHENS, 1839 and is conspecific with A. subtumida. Hence the synonymy proposed above.
description: Published as part of Assing, Volker & Schülke, Michael, 2019, The Staphylinidae of Armenia and Nagorno-Karabakh (Coleoptera), pp. 91-173 in Beiträge Zur Entomologie = Contributions to Entomology 69 (1) on page 155, DOI: 10.21248/contrib.entomol.69.1.091-173, http://zenodo.org/record/5742724
SIMULADOR PARA APRENDIZAGEM DE NEUROCIRURGIAS UTILIZANDO REALIDADE VIRTUAL
Creators: name: Silva, Mackley Magalhães Da
name: Silva, Antonio Tales Faustino Da
name: Oliveira, Luciene Chagas De
name: Carneiro, José Antonio Serra
name: Alves, Pedro Henrique Rodovalho
name: Andrade, Ramon Gaspar
Publisher: name: Zenodo
Year: 2019
Subjects: hematoma subdural crônico
realidade virtual
neurocirurgia

description: Recentemente, observa-se que o desenvolvimento da tecnologia da informação vem auxiliando inúmeras práticas na área da saúde, em atividades como diagnóstico, terapia, gerenciamento e educação, o que exige a necessidade de mudanças e desenvolvimento de novas habilidades pelos profissionais das áreas envolvidas. A realização de cirurgias assistidas virtualmente vem ganhando espaço com o avanço da tecnologia, porém durante esse procedimento, estudantes não podem manipular a cirurgia por se tratar de um paciente dentro de um procedimento real, dificultando assim a imersão do aluno ou médico. Este projeto visa criar um protótipo de simulação cirúrgica completa utilizando Realidade Virtual e Aumentada para que o estudante possa realizar uma Neurocirurgia de forma a conseguir trabalhar com o procedimento, sem riscos para os paciente e com imersividade total no procedimento, proporcionando assim um melhor aproveitamento de aprendizagem.
The two-loop five-point amplitude in $\mathcal N=8$ supergravity
Creators: name: Abreu, Samuel
name: Dixon, Lance J.
name: Herrmann, Enrico
name: Page, Ben
name: Zeng, Mao
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the symbol of the two-loop five-point amplitude in $\mathcal N=8$ supergravity. We write an ansatz for the amplitude whose rational prefactors are based on not only 4-dimensional leading singularities, but also $d$-dimensional ones, as the former are insufficient. Our novel $d$-dimensional unitarity-based approach to the systematic construction of an amplitude's rational structures is likely to have broader applications, for example to analogous QCD calculations. We fix parameters in the ansatz by performing numerical integration-by-parts reduction of the known integrand. We find that the two-loop five-point $\mathcal N=8$ supergravity amplitude is uniformly transcendental. We then verify the soft and collinear limits of the amplitude. There is considerable similarity with the corresponding amplitude for $\mathcal N=4$ super-Yang-Mills theory: all the rational prefactors are double copies of the Yang-Mills ones and the transcendental functions overlap to a large degree. As a byproduct, we find new relations between color-ordered loop amplitudes in $\mathcal N=4$ super-Yang-Mills theory.
description: 50 pages, 4 figures. v2: final journal version
Large quantum gravity effects: Unexpected limitations of the classical theory
Creators: name: Ashtekar, Abhay
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: 3-dimensional gravity coupled to Maxwell (or Klein-Gordon) fields is exactly soluble under the assumption of axi-symmetry. The solution is used to probe several quantum gravity issues. In particular, it is shown that the quantum fluctuations in the geometry are large unless the number and frequency of photons satisfy the inequality $\N(\hbar Gω)^2 << 1$. Thus, even when there is a single photon of Planckian frequency, the quantum uncertainties in the metric are significant. Results hold also for a sector of the 4-dimensional theory (consisting of Einstein Rosen gravitational waves).
description: 8 pages, No figures, ReVTeX
Consistent Higher Order Accurate Time Discretization Methods for Inelastic Material Models
Creators: name: Schröder, Bettina Anna Barbara
Publisher: name: Universität Kassel
Year: 2019
Subjects: subject: 620
subject: 690
subject: Viskoplastizität
subject: Elastoplastische Deformation
subject: Zeitintegrationsverfahren
subject: Galerkin-Methode
subject: Runge-Kutta-Verfahren
subject: Finite-Elemente-Methode
subject: Mehrfeldproblem
subject: Benchmark
subject: Fehlerabschätzung

description: Zugleich: Dissertation, Universität Kassel, 2019
Heterothops dissimilis
Creators: name: Assing, Volker
name: Schülke, Michael
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Heterothops
Heterothops dissimilis

description: Heterothops dissimilis (GRAVENHORST, 1802)
 Heterothops armeniacus COIFFAIT, 1977: 142; syn. nov.
 Type material examined: Holotype: “ Erevan, Kamaker, ASSR – 4.11.48 / Holotype / Heterothops armeniacus Coiff., H. Coiffait det. 1969 / Heterothops dissimilis (Gravenhorst), det. V. Assing 2018” (cKhn).
 Comment: The original description of H. armeniacus is based on a unique female holotype from “ Erevan, Kamaker, Arménie soviétique” (COIFFAIT 1977). In external characters, this holotype is identical to Armenian material identified as H. dissimilis. A comparison of the internal structures of the aedeagus of material from Germany and Armenia yielded no evidence that these populations should represent different species. These internal structures are slightly longer in the Armenian specimens, but otherwise of identical shape. Consequently, these differences are attributed to intraspecific variation and H. armeniacus is placed in synonymy with H. dissimilis.
description: Published as part of Assing, Volker & Schülke, Michael, 2019, The Staphylinidae of Armenia and Nagorno-Karabakh (Coleoptera), pp. 91-173 in Beiträge Zur Entomologie = Contributions to Entomology 69 (1) on page 163, DOI: 10.21248/contrib.entomol.69.1.091-173, http://zenodo.org/record/5742724
An Intelligent Safety System for Human-Centered Semi-Autonomous Vehicles
Creators: name: Khojasteh, Hadi Abdi
name: Alipour, Alireza Abbas
name: Ansari, Ebrahim
name: Razzaghi, Parvin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Nowadays, automobile manufacturers make efforts to develop ways to make cars fully safe. Monitoring driver's actions by computer vision techniques to detect driving mistakes in real-time and then planning for autonomous driving to avoid vehicle collisions is one of the most important issues that has been investigated in the machine vision and Intelligent Transportation Systems (ITS). The main goal of this study is to prevent accidents caused by fatigue, drowsiness, and driver distraction. To avoid these incidents, this paper proposes an integrated safety system that continuously monitors the driver's attention and vehicle surroundings, and finally decides whether the actual steering control status is safe or not. For this purpose, we equipped an ordinary car called FARAZ with a vision system consisting of four mounted cameras along with a universal car tool for communicating with surrounding factory-installed sensors and other car systems, and sending commands to actuators. The proposed system leverages a scene understanding pipeline using deep convolutional encoder-decoder networks and a driver state detection pipeline. We have been identifying and assessing domestic capabilities for the development of technologies specifically of the ordinary vehicles in order to manufacture smart cars and eke providing an intelligent system to increase safety and to assist the driver in various conditions/situations.
description: 15 pages and 5 figures, Submitted to the international conference on Contemporary issues in Data Science (CiDaS 2019), Learn more about this project at https://iasbs.ac.ir/~ansari/faraz
Uniform Substitution At One Fell Swoop
Creators: name: Platzer, André
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.4.1; F.3.1; F.3.2; I.2.3
subject: 03F03, 03B70, 34A38, 91A25

description: Uniform substitution of function, predicate, program or game symbols is the core operation in parsimonious provers for hybrid systems and hybrid games. By postponing soundness-critical admissibility checks, this paper introduces a uniform substitution mechanism that proceeds in a linear pass homomorphically along the formula. Soundness is recovered using a simple variable condition at the replacements performed by the substitution. The setting in this paper is that of differential hybrid games, in which discrete, continuous, and adversarial dynamics interact in differential game logic dGL. This paper proves soundness and completeness of one-pass uniform substitutions for dGL.
description: CADE 2019 Extending arXiv:1804.05880 with differential games arXiv:1507.04943
Thermodynamics of Quantum Information Flows
Creators: name: Ptaszynski, Krzysztof
name: Esposito, Massimiliano
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report two results complementing the second law of thermodynamics for Markovian open quantum systems coupled to multiple reservoirs with different temperatures and chemical potentials. First, we derive a nonequilibrium free energy inequality providing an upper bound for a maximum power output, which for systems with inhomogeneous temperature is not equivalent to the Clausius inequality. Secondly, we derive local Clausius and free energy inequalities for subsystems of a composite system. These inequalities differ from the total system one by the presence of an information-related contribution and build the ground for thermodynamics of quantum information processing. Our theory is used to study an autonomous Maxwell demon.
description: 6 pages, 2 figures, with the Supplementary Material
High-Energy Expansion of Two-Loop Massive Four-Point Diagrams
Creators: name: Mishima, Go
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the method of regions to the massive two-loop integrals appearing in the Higgs pair production cross section at the next-to-leading order, in the high energy limit. For the non-planar integrals, a subtle problem arises because of the indefinite sign of the second Symanzik polynomial. We solve this problem by performing an analytic continuation of the Mandelstam variables such that the second Symanzik polynomial has a definite sign. Furthermore, we formulate the procedure of applying the method of regions systematically. As a by-product of the analytic continuation of the Mandelstam variables, we obtain crossing relations between integrals in a simple and systematic way. In our formulation, a concept of "template integral" is introduced, which represents and controls the contribution of each region. All of the template integrals needed in the computation of the Higgs pair production at the next-to-leading order are given explicitly. We also develop techniques to solve Mellin-Barnes integrals, and show them in detail. Although most of the calculation is shown for the concrete example of the Higgs pair production process, the application to other similar processes is straightforward, and we anticipate that our method can be useful also for other cases.
description: 41 pages, v2: references corrected, v3: typos corrected, published version
Negative longitudinal magnetoresistance in GaAs quantum wells
Creators: name: Xu, Jing
name: Ma, Meng K.
name: Sultanov, Maksim
name: Xiao, Zhi-Li
name: Wang, Yong-Lei
name: Jin, Dafei
name: Lyu, Yang-Yang
name: Zhang, Wei
name: Pfeiffer, Loren N.
name: West, Ken W.
name: Baldwin, Kirk W.
name: Shayegan, Mansour
name: Kwok, Wai-Kwong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Negative longitudinal magnetoresistances (NLMRs) have been recently observed in a variety of topological materials and often considered to be associated with Weyl fermions that have a defined chirality. Here we report NLMRs in non-Weyl GaAs quantum wells. In the absence of a magnetic field the quantum wells show a transition from semiconducting-like to metallic behaviour with decreasing temperature. We observed pronounced NLMRs up to 9 Tesla at temperatures above the transition and weak NLMRs in low magnetic fields at temperatures close to the transition and below 5 K. The observed NLMRs show various types of magnetic field behaviour resembling those reported in topological materials. We attribute them to microscopic disorder and use a phenomenological three-resistor model to account for their various features. Our results showcase a new contribution of microscopic disorder in the occurrence of novel phenomena. They may stimulate further work on tuning electronic properties via disorder/defect nano-engineering.
Geometrical jitter and bolometric regime in photon detection by straight superconducting nanowire
Creators: name: Kuzmin, Artem
name: Doerner, Steffen
name: Wuensch, Stefan
name: Ilin, Konstantin
name: Siegel, Michael
name: Sidorova, Mariia
name: Semenov, Alexey
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a direct observation of the geometrical jitter in single photon detection by a straight superconducting nanowire. Differential measurement technique was applied to the 180-μm long nanowire similar to those commonly used in the technology of superconducting nanowire single photon detectors (SNSPD). A non-gaussian geometrical jitter appears as a wide almost uniform probability distribution (histogram) of the delay time (latency) of the nanowire response to detected photon. White electrical noise of the readout electronics causes broadened, Gaussian shaped edges of the histogram. Subtracting noise contribution, we found for the geometrical jitter a standard deviation of 8.5 ps and the full width at half maximum (FWHM) of the distribution of 29 ps. FWHM corresponds to the propagation speed of the electrical signal along the nanowire of $6.2\times10^{6}$ m/s or 0.02 of the speed of light. Alternatively the propagation speed was estimated from the central frequency of the measured first order self-resonance of the nanowire. Both values agree well with each other and with previously reported values. As the intensity of the incident photon flux increases, the wide probability distribution collapses into a much narrower Gaussian distribution with a standard deviation dominated by the noise of electronics. We associate the collapse of the histogram with the transition from the discrete, single photon detection to the uniform bolometric regime
Additional file of Modulation of gene expression in heart and liver of hibernating black bears (Ursus americanus)
Creators: name: Fedorov, Vadim B
name: Goropashnaya, Anna V
name: Tøien, Øivind
name: Stewart, Nathan C
name: Chang, Celia
name: Wang, Haifang
name: Yan, Jun
name: Showe, Louise C
name: Showe, Michael K
name: Barnes, Brian M
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file of Modulation of gene expression in heart and liver of hibernating black bears (Ursus americanus)