cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strafverfolgung und Strafvollzug in Hamburg und Schleswig-Holstein 2009
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Tübingen
Year: 2011
Subjects: subject: Strafverfolgung , Strafvollzug , Hamburg , Schleswig-Holstein
subject: 360

description: Mit der Strafverfolgungsstatistik werden die im Laufe eines Jahres auf Grund gerichtlicher Entscheidung rechtskräftig abgeurteilten und verurteilten Personen erfasst. Von den Amtsgerichten und Staatsanwaltschaften werden die Daten von Personen, die sich wegen Verbrechen oder Vergehen nach dem Strafgesetzbuch, nach anderen Bundesgesetzen oder nach Landesrecht einschließlich der Straftaten im Straßenverkehr vor Gericht verantworten mussten, in anonymisierter Form an das Statistische Landesamt weitergeleitet. Dabei werden Abgeurteilte und Verurteilte nach allgemeinem Strafrecht und nach Jugendstrafrecht unterschieden. Ordnungswidrigkeiten werden in dieser Statistik nicht erfasst. Die Statistik basiert auf Datensätzen und Zählkarten, die von den Gerichten für jede rechtskräftige Aburteilung erstellt werden. Bei der Aburteilung von Straftaten, die in Tateinheit oder Tatmehrheit begangen wurden, ist nur die Straftat erfasst, die nach dem Gesetz mit der schwersten Strafe bedroht ist. Werden mehrere Straftaten einer Person in mehreren Verfahren abgeurteilt, wird diese Person entsprechend mehrfach gezählt. In der Strafvollzugsstatistik werden zum Stichtag 31.03. jeden Jahres die Strafgefangenen und Sicherungsverwahrten nach ausgewählten demographischen und kriminologischen Merkmalen erfasst. Untersuchungs-Abschiebehäftlinge bleiben bei dieser Stichtageserhebung unberücksichtigt.
Creating and Verifying a Quantum Superposition in a Micro-optomechanical System
Creators: name: Kleckner, D.
name: Pikovski, I.
name: Jeffrey, E.
name: Ament, L.
name: Eliel, E.
name: Brink, J. van den
name: Bouwmeester, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Micro-optomechanical systems are central to a number of recent proposals for realizing quantum mechanical effects in relatively massive systems. Here we focus on a particular class of experiments which aim to demonstrate massive quantum superpositions, although the obtained results should be generalizable to similar experiments. We analyze in detail the effects of finite temperature on the interpretation of the experiment, and obtain a lower bound on the degree of non-classicality of the cantilever. Although it is possible to measure the quantum decoherence time when starting from finite temperature, an unambiguous demonstration of a quantum superposition requires the mechanical resonator to be in or near the ground state. This can be achieved by optical cooling of the fundamental mode, which also provides a method to measure the mean phonon number in that mode. We also calculate the rate of environmentally induced decoherence and estimate the timescale for gravitational collapse mechanisms as proposed by Penrose and Diosi. In view of recent experimental advances, practical considerations for the realization of the described experiment are discussed.
description: 19 pages, 8 figures, published in New J. Phys. 10 095020 (2008); minor revisions to improve clarity; fixed possibly corrupted figures
Orbital dynamics in 2D topological and Chern insulators
Creators: name: Faílde, Daniel
name: Baldomir, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Within a relativistic quantum formalism we examine the role of second-order corrections caused by the application of magnetic fields in two-dimensional topological and Chern insulators. This allows to reach analytical expressions for the change of the Berry curvature, orbital magnetic moment, density of states and energy determining their canonical grand potential and transport properties. The present corrections, which become relevant at relatively low fields due to the small gap characterizing these systems, unveil a zero-field diamagnetic susceptibility which can be tuned by the external magnetic field.
description: 7 pages, 2 figures
Code synchronization and interference management techniques for satellite navigation and communications
Creators: name: Gabelli, Giulio <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: ING-INF/03 Telecomunicazioni

description: This thesis collects the outcomes of a Ph.D. course in Telecommunications engineering and it is focused on enabling techniques for Spread Spectrum (SS) navigation and communication satellite systems. It provides innovations for both interference management and code synchronization techniques. These two aspects are critical for modern navigation and communication systems and constitute the common denominator of the work. The thesis is organized in two parts: the former deals with interference management. We have proposed a novel technique for the enhancement of the sensitivity level of an advanced interference detection and localization system operating in the Global Navigation Satellite System (GNSS) bands, which allows the identification of interfering signals received with power even lower than the GNSS signals. Moreover, we have introduced an effective cancellation technique for signals transmitted by jammers, exploiting their repetitive characteristics, which strongly reduces the interference level at the receiver. The second part, deals with code synchronization. More in detail,  we have designed the code synchronization circuit for a  Telemetry, Tracking and Control system operating during the Launch and Early Orbit Phase; the proposed solution allows to cope with the very large frequency uncertainty and dynamics characterizing this scenario, and performs the estimation of the code epoch, of the carrier frequency and of the carrier frequency variation rate. Furthermore, considering a generic pair of circuits performing code acquisition, we have proposed a comprehensive framework for the design and the analysis of the optimal cooperation procedure, which minimizes the time required to accomplish synchronization. The study results particularly interesting since it enables  the reduction of the code acquisition time without increasing the computational complexity. Finally, considering a network of collaborating navigation receivers, we have proposed an innovative cooperative code acquisition scheme, which allows exploit the shared code epoch information between neighbor nodes, according to the Peer-to-Peer paradigm.
Strain-induced single-domain growth of epitaxial SrRuO3 layers on SrTiO3: a high-temperature x-ray diffraction study
Creators: name: Vailionis, Arturas
name: Siemons, Wolter
name: Koster, Gertjan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Temperature dependent structural phase transitions of SrRuO3 thin films epitaxially grown on SrTiO3(001) single crystal substrates have been studied using high-resolution x-ray diffraction. In contrast to bulk SrRuO3, coherently strained epitaxial layers do not display cubic symmetry up to ~730 oC and remain tetragonal. Such behavior is believed to be induced by compressive strain between the SrRuO3 layer and SrTiO3 substrate due to lattice mismatch. The tetragonal symmetry during growth explains the single domain growth on miscut SrTiO3 substrates with step edges running along the [100] or [010] direction.
description: 5 pages, 3 figures
Black-body photon clustering by semi-classical means
Creators: name: Lestone, J. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: If stimulated emission could be turned off then only uncorrelated photons would be emitted from black bodies and the photon counting statistics would be Poissonian. Through the process of stimulated emission, some fraction of the photons emitted from a black body are correlated and thus emitted in clusters. This photon clustering can be calculated by semi-classical means. The corresponding results are in agreement with quantum theory.
description: 10 pages, 2 figures, 1 table. Added proof that stimulated-emission produced photon clustering at the source leads to the Hanbury Brown and Twiss effect without invoking photon-photon interference. Fixed unit mistakes in the left hand side of Eqs (4), (6), (7), and (9)
Spin measurements for 147Sm+n resonances: Further evidence for non-statistical effects
Creators: name: Koehler, P. E.
name: Ullmann, J. L.
name: Bredeweg, T. A.
name: O`Donnell, J. M.
name: Reifarth, R.
name: Rundberg, R. S.
name: Vieira, D. J.
name: Wouters, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have determined the spins J of resonances in the 147Sm(n,gamma) reaction by measuring multiplicities of gamma-ray cascades following neutron capture. Using this technique, we were able to determine J values for all but 14 of the 140 known resonances below En = 1 keV, including 41 firm J assignments for resonances whose spins previously were either unknown or tentative. These new spin assignments, together with previously determined resonance parameters, allowed us to extract separate level spacings and neutron strength functions for J = 3 and 4 resonances. Furthermore, several statistical test of the data indicate that very few resonances of either spin have been missed below En = 700eV. Because a non-statistical effect recently was reported near En = 350 eV from an analysis of 147Sm(n,alpha) data, we divided the data into two regions; 0 < En < 350 eV and 350 < En < 700 eV. Using neutron widths from a previous measurement and published techniques for correcting for missed resonances and for testing whether data are consistent with a Porter-Thomas distribution, we found that the reduced-neutron-width distribution for resonances below 350 eV is consistent with the expected Porter-Thomas distribution. On the other hand, we found that reduced-neutron-width data in the 350 < En < 700 eV region are inconsistent with a Porter-Thomas distribution, but in good agreement with a chi-squared distribution having two or more degrees of freedom. We discuss possible explanations for these observed non-statistical effects and their possible relation to similar effects previously observed in other nuclides.
description: 40 pages, 13 figures, accepted by Phys. Rev. C
Santa Catalina AGM (Magnetic Data) Processing Project
Creators: name: Li, Yingbo
name: Harrison, Richard J.
name: Nichols, Claire I.O.
Publisher: name: Zenodo
Year: 2025

description: FORCinel (v3.08)[1] project file (SantaCatalinaSerpentiniteMagentics_FORCinel_3.08.pxp) containing FORC data alongside the processing steps used for FORC PCA analysis. The raw FORC data (.frc files) is also provided.

[1] Harrison, R. J., and  J. M. Feinberg (2008), FORCinel: An improved algorithm for calculating first-order reversal curve distributions using locally weighted regression smoothing, Geochem. Geophys. Geosyst., 9, Q05016, doi:10.1029/2008GC001987.
Baryon transport and the QCD critical point
Creators: name: Du, Lipei
name: An, Xin
name: Heinz, Ulrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Fireballs created in relativistic heavy-ion collisions at different beam energies have been argued to follow different trajectories in the QCD phase diagram in which the QCD critical point serves as a landmark. Using a (1+1)-dimensional model setting with transverse homogeneity, we study the complexities introduced by the fact that the evolution history of each fireball cannot be characterized by a single trajectory but rather covers an entire swath of the phase diagram, with the finally emitted hadron spectra integrating over contributions from many different trajectories. Studying the phase diagram trajectories of fluid cells at different space-time rapidities, we explore how baryon diffusion shuffles them around, and how they are affected by critical dynamics near the QCD critical point. We find a striking insensitivity of baryon diffusion to critical effects. Its origins are analyzed and possible implications discussed.
description: 26 pages, 17 figures; v2: Fig.14 moved to Fig.1, Sec.IIIC included more clarifications; published on PRC
Declaration of Intention of Julius Hofmeister
Creators: name: United States. Bureau Of Naturalization
Publisher: name: No Publisher Supplied
Year: 1909

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by: Julius Hofmeister  Applicant age: 25Occupation: bartenderCountry of Origin: GermanyDate of Birth: May 12, 1884Sailed to the US aboard the vessel:  Hannover Declaration submitted and sworn: 27 October 1909Residing in: Somers Point, NJ.
Localized Solitons of a (2+1)-dimensional Nonlocal Nonlinear Schrödinger Equation
Creators: name: Maruno, Ken-ichi
name: Ohta, Yasuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A new integrable (2+1)-dimensional nonlocal nonlinear Schrödinger equation is proposed. The $N$-soliton solution is given by Gram type determinant. It is found that the localized N-soliton solution has interesting interaction behavior which shows change of amplitude of localized pulses after collisions.
description: 3 figures
Early growth and development of Douglas-fir in relation to interspecific competition
Creators: name: Brand, David George
Publisher: name: University of British Columbia
Year: 2010

description: An interlocking group of studies was carried out to address the concept of the free-to-grow seedling. This term is an attempt to define plantation establishment in a manner cognizant of early hazards from brush competition and other stresses. The studies were carried out on one- to five-year old Douglas-fir plantations on moist, rich sites in coastal British Columbia. Data were generated from field measurements and harvest sampling of the planted trees and their associated competing vegetation. On these productive sites, tree growth appears sensitive to interference from neighbouring brush species. An index implying competitive shading was derived and proved a useful measure of stress on the planted trees, particularly when measured as a relative production rate. Growth losses varied with the light environment at specific crown positions. Therefore, height growth was not affected by competition until the terminal leader was shaded. This allows height growth to remain independent of competition level until the tree is overtopped on these sites. The trees studied showed great ability to acclimate and survive relatively heavy shading by competing vegetation. After competition release treatment, trees were generally able to re-acclimate the current seasons growth to the increased light intensity. Growth following competition release was significantly improved by a chemical brush control treatment, while mechanical brushing resulted in little net change in competition levels after one year. The growth on these trees in the year following release from competition was also best measured as a relative production rate. The vegetation on untreated areas followed a strong successional trend during the period studied. The trend was a function of differences in height growth patterns between species modified by leaf area index. In general, woody species tend to succeed geophytes and microphanerophytes on these sites. A proposed free-to-grow definition in biological terms states that a tree must be free from competitive shading on the terminal leader and increasing in height relative to the competing vegetation. The free-to-grow status can be assessed by on a threshold value of the competition index and a predictive model for the comparative height increment of the tree and its competitors.
Quantum walk on a comb with infinite teeth
Creators: name: David, Francois
name: Jonsson, Thordur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study continuous time quantum random walk on a comb with infinite teeth and show that the return probability to the starting point decays with time $t$ as $t^{-1}$. We analyse the diffusion along the spine and into the teeth and show that the walk can escape into the teeth with a finite probability and goes to infinity along the spine with a finite probability. The walk along the spine and into the teeth behaves qualitatively as a quantum random walk on a line. This behaviour is quite different from that of classical random walk on the comb.
description: 65 pages, 46 figures
Declaration of Intention of William Ludwig
Creators: name: United States. Bureau Of Naturalization
Publisher: name: No Publisher Supplied
Year: 1909

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by: William Ludwig  Applicant age: 28Occupation: DriverCountry of Origin: GermanyDate of Birth: July 25, 1881Sailed to the US aboard the vessel: Rotterdam   Declaration submitted and sworn: 27 October 1909Residing in: Somers Point, NJ.
Numerical evidence for unstable magnons at high fields in the Heisenberg antiferromagnet on the square lattice
Creators: name: Syljuasen, Olav F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We find evidence for decaying magnons at strong magnetic field in the square lattice spin-1/2 Heisenberg antiferromagnet. The results are obtained using Quantum Monte Carlo simulations combined with a Bayesian inference technique to obtain dynamics and are consistent with predictions from spin wave theory.
description: 4 pages, 5 figures
Prospects for macroscopic dark matter detection at space-based and suborbital experiments
Creators: name: Anchordoqui, Luis A.
name: Bertaina, Mario E.
name: Casolino, Marco
name: Eser, Johannes
name: Krizmanic, John F.
name: Olinto, Angela V.
name: Otte, A. Nepomuk
name: Paul, Thomas C.
name: Piotrowski, Lech W.
name: Reno, Mary Hall
name: Sarazin, Fred
name: Shinozaki, Kenji
name: Soriano, Jorge F.
name: Venters, Tonia M.
name: Wiencke, Lawrence
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We compare two different formalisms for modeling the energy deposition of macroscopically sized/massive quark nuggets (a.k.a. macros) in the Earth's atmosphere. We show that for a reference mass of 1 g, there is a discrepancy in the macro luminosity of about 14 orders of magnitude between the predictions of the two formalisms. Armed with our finding we estimate the sensitivity for macro detection at space-based (Mini-EUSO and POEMMA) and suborbital (EUSO-SPB2) experiments.
description: 5 pages revtex, 3 figures
DeepLight: Robust & Unobtrusive Real-time Screen-Camera Communication for Real-World Displays
Creators: name: Tran, Vu
name: Jayatilaka, Gihan
name: Ashok, Ashwin
name: Misra, Archan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The paper introduces a novel, holistic approach for robust Screen-Camera Communication (SCC), where video content on a screen is visually encoded in a human-imperceptible fashion and decoded by a camera capturing images of such screen content. We first show that state-of-the-art SCC techniques have two key limitations for in-the-wild deployment: (a) the decoding accuracy drops rapidly under even modest screen extraction errors from the captured images, and (b) they generate perceptible flickers on common refresh rate screens even with minimal modulation of pixel intensity. To overcome these challenges, we introduce DeepLight, a system that incorporates machine learning (ML) models in the decoding pipeline to achieve humanly-imperceptible, moderately high SCC rates under diverse real-world conditions. Deep-Light's key innovation is the design of a Deep Neural Network (DNN) based decoder that collectively decodes all the bits spatially encoded in a display frame, without attempting to precisely isolate the pixels associated with each encoded bit. In addition, DeepLight supports imperceptible encoding by selectively modulating the intensity of only the Blue channel, and provides reasonably accurate screen extraction (IoU values >= 83%) by using state-of-the-art object detection DNN pipelines. We show that a fully functional DeepLight system is able to robustly achieve high decoding accuracy (frame error rate < 0.2) and moderately-high data goodput (>=0.95Kbps) using a human-held smartphone camera, even over larger screen-camera distances (approx =2m).
description: Accepted for IPSN 2021 (ACM/IEEE International Conference on Information Processing in Sensor Networks 2021)
Neutral hydrogen in galactic fountains
Creators: name: Booth, C. M.
name: Theuns, Tom
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Simulations of an isolated Milky Way-like galaxy, in which supernovae power a galactic fountain, reproduce the observed velocity and 21cm brightness statistics of galactic neutral hydrogen (HI). The simulated galaxy consists of a thin HI disk, similar in extent and brightness to that observed in the Milky Way, and extra-planar neutral gas at a range of velocities due to the galactic fountain. Mock observations of the neutral gas resemble the HI flux measurements from the Leiden-Argentine-Bonn (LAB) HI, survey, including a high-velocity tail which matches well with observations of high-velocity clouds. The simulated high-velocity clouds are typically found close to the galactic disk, with a typical line-of-sight distance of 13kpc from observers on the solar circle. The fountain efficiently cycles matter from the centre of the galaxy to its outskirts at a rate of around 0.5 M_sun/yr
description: 5 pages, 5 figures. Accepted for publication in MNRAS letters
Variant interpretation using population databases: lessons from gnomAD
Creators: name: Gudmundsson, Sanna
name: Singer-Berk, Moriel
name: Watts, Nicholas A.
name: Phu, William
name: Goodrich, Julia K.
name: Solomonson, Matthew
name: Consortium, Genome Aggregation Database
name: Rehm, Heidi L.
name: MacArthur, Daniel G.
name: ODonnell-Luria, Anne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Reference population databases are an essential tool in variant and gene interpretation. Their use guides the identification of pathogenic variants amidst the sea of benign variation present in every human genome, and supports the discovery of new disease-gene relationships. The Genome Aggregation Database (gnomAD) is currently the largest and most widely used publicly available collection of population variation from harmonized sequencing data. The data is available through the online gnomAD browser (https://gnomad.broadinstitute.org/) that enables rapid and intuitive variant analysis. This review provides guidance on the content of the gnomAD browser, and its usage for variant and gene interpretation. We introduce key features including allele frequency, per-base expression levels, constraint scores, and variant co-occurrence, alongside guidance on how to use these in analysis, with a focus on the interpretation of candidate variants and novel genes in rare disease.
description: Version 3: Includes updates to mirror the latest features and layouts available on the gnomAD browser and general improvements to text and figures (clarifications, typos, additional references etc.) as well as the addition of Table S1, S2, Figure S1, S2 and S5
title: The genera Fejervarya and Minervarya in Myanmar: Description of a new species, new country records, and taxonomic notes (Amphibia, Anura, Dicroglossidae)
Creators: name: Köhler, Gunther
name: Mogk, Linda
name: Khaing, Khin Pa Pa
name: Than, Ni Lar
Publisher: name: Senckenberg Gesellschaft für Naturforschung
Year: 2019

description: We describe a new species of frog, Fejervarya kupitzi from Myanmar, and record three species for the first time in this country: Fejervarya orissaensis, Minervarya chiangmaiensis, and M. muangkanensis. For these four species and for F. limnocharis which occurs in northern and eastern Myanmar and widely across Southeast Asia, we provide species accounts summarizing their variation in external morphology with an emphasis on Myanmar populations. We describe the advertisement call of F. orissaensis and M. muangkanensis, and we describe and illustrate the tadpole of F. orissaensis. And we provide an identification key to the five species of Fejervarya and Minervarya currently recognized in Myanmar.
Chirality and Equilibrium Biopolymer Bundles
Creators: name: Grason, Gregory M.
name: Bruinsma, Robijn F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use continuum theory to show that chirality is a key thermodynamic control parameter for the aggregation of biopolymers: chirality produces a stable disperse phase of hexagonal bundles under moderately poor solvent conditions, as has been observed in {\it in-vitro} studies of F-actin [O. Pelletier {\it et al.}, Phys. Rev. Lett. {\bf 91}, 148102 (2003)]. The large characteristic radius of these chiral bundles is not determined by a mysterious long-range molecular interaction but by in-plane shear elastic stresses generated by the interplay between a chiral torque and an unusual, but universal, non-linear gauge term in the strain tensor of ordered chains that is imposed by rotational invariance.
description: 4 pages; 2 figures
Outstandingly high thermal conductivity, elastic modulus, carrier mobility and piezoelectricity in two-dimensional semiconducting CrC2N4: A first-principles study
Creators: name: Mortazavi, Bohayra
name: Shojaei, Fazel
name: Javvaji, Brahmanandam
name: Rabczuk, Timon
name: Zhuang, Xiaoying
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Experimental realization of single-layer MoSi2N4 is among the latest groundbreaking advances in the field of two-dimensional (2D) materials. Inspired by this accomplishment, herein we conduct first-principles calculations to explore the stability of MC2N4 (M= Cr, Mo, W, V, Nb, Ta, Ti, Zr, Hf) monolayers. Acquired results confirm the desirable thermal, dynamical and mechanical stability of MC2N4 (M= Cr, Mo, W, V) nanosheets. Interestingly, CrC2N4, MoC2N4 and WC2N4 monolayers are found to be semiconductors with band gaps of 2.32, 2.76 and 2.86 eV, respectively, using the HSE06 functional, whereas VC2N4 lattice shows a metallic nature. The direct gap semiconducting nature of CrC2N4 monolayer results in excellent absorption of visible light. The elastic modulus and tensile strength of CrC2N4 nanosheet are predicted to be remarkably high, 676 and 54.8 GPa, respectively. On the basis of iterative solutions of the Boltzmann transport equation, the room temperature lattice thermal conductivity of CrC2N4 monolayer is predicted to be 350 W/mK, among the highest in 2D semiconductors. CrC2N4 and WC2N4 lattices are also found to exhibit outstandingly high piezoelectric coefficients. This study introduces CrC2N4 nanosheet as a novel 2D semiconductor with outstandingly high mechanical strength, thermal conductivity, carrier mobility and piezoelectric coefficient.
title: Juli 2019 global heißester Monat seit Beginn der Wetteraufzeichnung
Creators: name: Heinrich, Ingo
name: Imbery, Florian
name: Kandarr, Jana
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2019

description: Seit 1850 weltweit systematisch Temperaturen erfasst werden, gab es noch nie einen wärmeren Monat. Auch der diesjährige Juni hält einen Rekord.
Unconventional SUSY and Conventional Physics: A Pedagogical Review
Creators: name: Alvarez, Pedro D.
name: Delage, Lucas
name: Valenzuela, Mauricio
name: Zanelli, Jorge
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In supersymmetric extensions of the Standard Model, the observed particles come in fermion-boson pairs necessary for the realization of supersymmetry (SUSY). In spite of the expected abundance of super-partners for all the known particles, not a single supersymmetric pair has been reported to date. Although a hypothetical SUSY breaking mechanism, operating at high energy inaccessible to current experiments cannot be ruled out, this reduces SUSY's predictive power and it is unclear whether SUSY, in its standard form, can help reducing the remaining puzzles of the standard model (SM). Here we argue that SUSY can be realized in a different way, connecting spacetime and internal bosonic symmetries, combining bosonic gauge fields and fermionic matter particles in a single gauge field, a Lie superalgebra-valued connection. In this unconventional representation, states do not come in SUSY pairs, avoiding the doubling of particles and fields and SUSY is not a fully off-shell invariance of the action. The resulting systems are remarkably simple, closely resembling a standard quantum field theory and SUSY still emerges as a contingent symmetry that depends on the features of the vacuum/ground state. We illustrate the general construction with two examples: i) A 2+1 dimensional system based on the $osp(2,2|2)$ superalgebra, including Lorentz and $u(1)$ generators that describes graphene; ii) A supersymmetric extension of 3+1 conformal gravity with an $SU(2,2|2)$ connection that describes a gauge theory with an emergent chiral symmetry breaking, coupled to gravity. The extensions to higher odd and even dimensions, as well as the extensions to accommodate more general internal symmetries are also outlined.
description: 19 pages. Review
Non-saturating magnetoresistance of inhomogeneous conductors: comparison of experiment and simulation
Creators: name: Hu, Jingshi
name: Parish, Meera M.
name: Rosenbaum, T. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The silver chalcogenides provide a striking example of the benefits of imperfection. Nanothreads of excess silver cause distortions in the current flow that yield a linear and non-saturating transverse magnetoresistance (MR). Associated with the large and positive MR is a negative longitudinal MR. The longitudinal MR only occurs in the three-dimensional limit and thereby permits the determination of a characteristic length scale set by the spatial inhomogeneity. We find that this fundamental inhomogeneity length can be as large as ten microns. Systematic measurements of the diagonal and off-diagonal components of the resistivity tensor in various sample geometries show clear evidence of the distorted current paths posited in theoretical simulations. We use a random resistor network model to fit the linear MR, and expand it from two to three dimensions to depict current distortions in the third (thickness) dimension. When compared directly to experiments on Ag$_{2\pmδ}$Se and Ag$_{2\pmδ}$Te, in magnetic fields up to 55 T, the model identifies conductivity fluctuations due to macroscopic inhomogeneities as the underlying physical mechanism. It also accounts reasonably quantitatively for the various components of the resistivity tensor observed in the experiments.
description: 10 pages, 7 figures
A Reinforcement Learning Environment for Multi-Service UAV-enabled Wireless Systems
Creators: name: Brunori, Damiano
name: Colonnese, Stefania
name: Cuomo, Francesca
name: Iocchi, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We design a multi-purpose environment for autonomous UAVs offering different communication services in a variety of application contexts (e.g., wireless mobile connectivity services, edge computing, data gathering). We develop the environment, based on OpenAI Gym framework, in order to simulate different characteristics of real operational environments and we adopt the Reinforcement Learning to generate policies that maximize some desired performance.The quality of the resulting policies are compared with a simple baseline to evaluate the system and derive guidelines to adopt this technique in different use cases. The main contribution of this paper is a flexible and extensible OpenAI Gym environment, which allows to generate, evaluate, and compare policies for autonomous multi-drone systems in multi-service applications. This environment allows for comparative evaluation and benchmarking of different approaches in a variety of application contexts.
The idea of a fictional encyclopaedia : Finnegans wake, Paradis, the Cantos
Creators: name: Clark, Hilary Anne
Publisher: name: University of British Columbia
Year: 2010

description: This study concerns itself with the phenomenon of literary encyclopaedism, as especially evident in James Joyce's Finnegans Wake, Philippe Sollers' Paradis and Ezra Pound's Cantos. The study focuses on developing the notion of an encyclopaedic literary mode and on establishing the existence of a genre of fictional encyclopaedias. It finds an encyclopaedic mode in literature to be one comprehending and imitating other literary modes, both mimetic and didactic. Further, the idea of a fictional encyclopaedia is developed through an understanding of the traits of the neighbouring forms of essay, Menippean satire and epic, and through an understanding of the paradoxes associated with the making of the non-fictional encyclopaedia. The fictional encyclopaedia thus comprehends and exceeds the following traits: 1. A tension, characteristic of the essay, between integrated autobiography and impersonal (and ultimately fragmented) exposition of the categories of knowledge. 2. A tension, characteristic of the Menippean satire, between tale and digression, between a single narrating subject and a multiplicity of transient narrating voices. The menippea also contributes a simultaneous preoccupation with the most sacred and the most profane subjects. 3. A totalizing drive characteristic of the epic, a desire--rivalling the urge to tell a story--to list or include all aspects of the culture in the epic past. The fictional encyclopaedia also translates into fiction the following paradoxes associated with the encyclopaedic enterprise: 1. The recognition, implicit in the drive to trace a complete and eternally-perfect circle of the arts and sciences, that encyclopaedic knowledge is always ultimately incomplete and obsolete. 2. The recognition, at the heart of the attempt to produce an objective and unmediated picture of the world, that encyclopaedic knowledge is ideologically shaped and textually mediated. The dominance of the encyclopaedic gesture in Finnegans Wake, Paradis and the Cantos allows us to account for the characteristic length, obscurity and "bookishness" of these works; they absorb the traits and tensions of essay, Menippean satire and epic while yet exceeding these traits in their fictional translation of the encyclopaedic paradoxes noted above. This translation manifests itself in each work as a characteristic parodic hesitation before the authority of totalizing predecessors; it manifests itself in the texts' fascination with images of a paradisiacal completion and timelessness, a tendency that is undercut by a repetitive, digressive or fragmented form which asserts the inevitability of time and incompletion. Further, the Wake, Paradis and the Cantos, in their overt and extensive intertextual activity, emphasize the textual boundaries of encyclopaedic knowledge. Nonetheless, in their foregrounding and valorization of speech rhythms, the works also repeat the challenge that the encyclopaedia brings to its own limited nature as written book.
Primordial non-Gaussianity from two curvaton decays
Creators: name: Assadullahi, Hooshyar
name: Valiviita, Jussi
name: Wands, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study a model where two scalar fields, that are subdominant during inflation, decay into radiation some time after inflation has ended but before primordial nucleosynthesis. Perturbations of these two curvaton fields can be responsible for the primordial curvature perturbation. We write down the full non-linear equations that relate the primordial perturbation to the curvaton perturbations on large scales, calculate the power spectrum of the primordial perturbation, and finally go to second order to find the non-linearity parameter, fNL. We find large positive values of fNL if the energy densities of the curvatons are sub-dominant when they decay, as in the single curvaton case. But we also find a large fNL even if the curvatons dominate the total energy density in the case when the inhomogeneous radiation produced by the first curvaton decay is diluted by the decay of a second nearly homogeneous curvaton. The minimum value min(fNL)=-5/4 which we find is the same as in the single-curvaton case.
description: 20 pages, 5 figures
Asymptotically Friedmann self-similar scalar field solutions with potential
Creators: name: Kyo, Masanori
name: Harada, Tomohiro
name: Maeda, Hideki
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate self-similar solutions which are asymptotic to the Friedmann universe at spatial infinity and contain a scalar field with potential. The potential is required to be exponential by self-similarity. It is found that there are two distinct one-parameter families of asymptotic solutions,one is asymptotic to the proper Friedmann universe, while the other is asymptotic to the quasi-Friedmann universe, i.e., the Friedmann universe with anomalous solid angle. The asymptotically proper Friedmann solution is possible only if the universe is accelerated or the potential is negative. If the potential is positive, the density perturbation in the asymptotically proper Friedmann solution rapidly falls off at spatial infinity, while the mass perturbation is compensated. In the asymptotically quasi-Friedmann solution, the density perturbation falls off only in proportion to the inverse square of the areal radius and the relative mass perturbation approaches a nonzero constant at spatial infinity. The present result shows that a necessary condition holds in order that a self-gravitating body grows self-similarly due to the constant accretion of quintessence in an accelerating universe.
description: accepted for publication in Physical Review D, minor correction, typos corrected
Yang-Mills Theory in 2+1 Dimensions: Coupling of Matter Fields and String-breaking Effects
Creators: name: Agarwal, Abhishek
name: Karabali, Dimitra
name: Nair, V. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore further the Hamiltonian formulation of Yang-Mills theory in 2+1 dimensions in terms of gauge-invariant matrix variables. Coupling to scalar matter fields is discussed in terms of gauge-invariant fields. We analyze how the screening of adjoint (and other screenable) representations can arise in this formalism. A Schrodinger equation is then derived for the gluelump states which are the daughter states when an adjoint string breaks. A variational solution of this Schrodinger equation leads to an analytic estimate of the string-breaking energy which is within 8.8% of the latest lattice estimates.
description: 31 pages, 1 figure, minor comments, references added, final version to appear in Nucl.Phys.B
การพัฒนาแผนการจัดประสบการณ์เกมการศึกษาจากสื่อธรรมชาติสำหรับเตรียมทักษะพื้นฐานคณิตศาสตร์ของเด็กปฐมวัย
Creators: name: สกล ป้องคำสิงห์
name: ประดิษฐ์ เอกทัศน์
name: อรัญ ชุยกระเดื่อง
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2010
Subjects: การจัดประสบการณ์เด็กปฐมวัย, ทักษะพื้นฐานทางคณิตศาสตร์

description: 2, 4, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
การศึกษาแนวทางพัฒนารูปแบบการจัดการสหกิจศึกษากรณีศึกษาคณะสถาปัตยกรรมศาสตร์ มหาวิทยาลัยกรุงเทพ
Creators: name: สุชน ยิ้มรัตนบวร
Publisher: name: คณะสถาปัตยกรรมศาสตร์
Year: 2021
Subjects: หลักสูตรสถาปัตยกรรมศาสตรบัณฑิต
มหาวิทยาลัยกรุงเทพ
สหกิจศึกษา

description: วารสาร สิ่งแวดล้อมสรรค์สร้างวินิจฉัย (Built Environment Inquiry BEI), 20, 3, 29-46
A Lorentz and gauge invariant measure of laser intensity
Creators: name: Heinzl, Thomas
name: Ilderton, Anton
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Focussing on null fields as simple models of laser beams we discuss the classical relativistic motion of charges in strong electromagnetic fields. We suggest a universal, Lorentz and gauge invariant measure of laser intensity and explicitly calculate and interpret it for crossed field, plane wave and vortex models.
description: 4 pages, 2 .eps figures
On the logistical difficulties and findings of Jopara Sentiment Analysis
Creators: name: Agüero-Torales, Marvin M.
name: Vilares, David
name: López-Herrera, Antonio G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: 68-02 68T50 68T07 91D30

description: This paper addresses the problem of sentiment analysis for Jopara, a code-switching language between Guarani and Spanish. We first collect a corpus of Guarani-dominant tweets and discuss on the difficulties of finding quality data for even relatively easy-to-annotate tasks, such as sentiment analysis. Then, we train a set of neural models, including pre-trained language models, and explore whether they perform better than traditional machine learning ones in this low-resource setup. Transformer architectures obtain the best results, despite not considering Guarani during pre-training, but traditional machine learning models perform close due to the low-resource nature of the problem.
description: Accepted in the CALCS 2021 (co-located with NAACL 2021) - Fifth Workshop on Computational Approaches to Linguistic Code Switching, to appear (June 2021)
Consortium member list and publication co-contributor statement from Stress and worry in the 2020 coronavirus pandemic: relationships to trust and compliance with preventive measures across 48 countries in the COVIDiSTRESS global survey
Creators: name: Lieberoth, Andreas
name: Shiang-Yi Lin
name: Stöckli, Sabrina
name: Hyemin Han
name: Kowal, Marta
name: Gelpi, Rebekah
name: Chrona, Stavroula
name: Tran, Thao Phuong
name: Jeftić, Alma
name: Rasmussen, Jesper
name: Cacal, Hussein
name: Taciano L Milfont
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173,429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, coping and trust in government efforts to slow the spread of the virus. Starting in March 2020, COVIDiSTRESS leveraged the convenience of unpaid online recruitment to generate public data. The objective of the present analysis is to understand relationships between psychological responses in the early months of global coronavirus restrictions and help understand how different government measures succeed or fail in changing public behaviour. There were variations between and within countries. Although Western Europeans registered as more concerned over COVID-19, more stressed, and having slightly more trust in the governments' efforts, there was no clear geographical pattern in compliance with behavioural measures. Detailed plots illustrating between-countries differences are provided. Using both traditional and Bayesian analyses, we found that individuals who worried about getting sick worked harder to protect themselves and others. However, concern about the coronavirus itself did not account for all of the variances in experienced stress during the early months of coronavirus restrictions. More alarmingly, such stress was associated with less compliance. Further, those most concerned over the coronavirus trusted in government measures primarily where policies were strict. While concern over a disease is a source of mental distress, other factors including strictness of protective measures, social support and personal lockdown conditions must also be taken into consideration to fully appreciate the psychological impact of COVID-19 and to understand why some people fail to follow behavioural guidelines intended to protect themselves and others from infection. ‘The Stage 1 manuscript associated with this submission received in-principle acceptance (IPA) on 18 May 2020. Following IPA, the accepted Stage 1 version of the manuscript was preregistered on the Open Science Framework at https://osf.io/g2t3b. This preregistration was performed prior to data analysis.'
Multisource Bayesian sequential change detection
Creators: name: Dayanik, Savas
name: Poor, H. Vincent
name: Sezer, Semih O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62L10 (Primary) 62L15, 62C10, 60G40 (Secondary)

description: Suppose that local characteristics of several independent compound Poisson and Wiener processes change suddenly and simultaneously at some unobservable disorder time. The problem is to detect the disorder time as quickly as possible after it happens and minimize the rate of false alarms at the same time. These problems arise, for example, from managing product quality in manufacturing systems and preventing the spread of infectious diseases. The promptness and accuracy of detection rules improve greatly if multiple independent information sources are available. Earlier work on sequential change detection in continuous time does not provide optimal rules for situations in which several marked count data and continuously changing signals are simultaneously observable. In this paper, optimal Bayesian sequential detection rules are developed for such problems when the marked count data is in the form of independent compound Poisson processes, and the continuously changing signals form a multi-dimensional Wiener process. An auxiliary optimal stopping problem for a jump-diffusion process is solved by transforming it first into a sequence of optimal stopping problems for a pure diffusion by means of a jump operator. This method is new and can be very useful in other applications as well, because it allows the use of the powerful optimal stopping theory for diffusions.
description: Published in at http://dx.doi.org/10.1214/07-AAP463 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)