cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Primitively generated Hall algebras
Creators: name: Berenstein, Arkady
name: Greenstein, Jacob
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: In the present paper we show that Hall algebras of finitary exact categories behave like quantum groups in the sense that they are generated by indecomposable objects. Moreover, for a large class of such categories, Hall algebras are generated by their primitive elements, with respect to the natural comultiplication, even for non-hereditary categories. Finally, we introduce certain primitively generated subalgebras of Hall algebras and conjecture an analogue of "Lie correspondence" for those finitary categories.
description: 36 pages, AMSLaTeX+AMSRefs; introduced multiplicity for elements of Grothendieck monoid; they play the role of root multiplicities in Kac-Moody algebras due to a reformulation of Kac conjecture (see Theorem 1.9)
Zur Aufstellung einer Merkurstatue im großen Umgangstempel von Tawern
Creators: name: Faust, Sabine
name: Schneider, Frank
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 34 (2002): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Lattice simulation of ultracold atomic Bose-Fermi mixtures
Creators: name: Yamamoto, Arata
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Bose-Fermi mixtures have been recently realized and invesitigated in ultracold atomic experiments. We formulate quantum Monte Carlo simulation of Bose-Fermi mixtures on the (3+1)-dimensional lattice. As its first application, we analyze the boson-fermion pair correlation and the phase diagram of the Bose-Einstein condensation.
description: Talk given at 30th International Symposium On Lattice Field Theory (Lattice 2012), Cairns Convention Centre, Cairns, Australia
Die Korrektur des Trockensubstanzgehaltes von Maissilagen als Substrat für Biogasanlagen
Creators: name: Weißbach, Friedrich
name: Strubelt, Cornelia
Publisher: name: LANDTECHNIK
Year: 2008

description: Bei der Bestimmung des TS-Gehaltes von Silagen gehen flüchtige Substanzen (Gärsäuren und Alkohole) verloren. Deshalb muss der auf übliche Weise im Trockenschrank ermittelte TS-Gehalt nachträglich korrigiert werden. Geschieht das nicht oder nicht präzise genug, werden sowohl der Nährstoffgehalt als auch die spezifische Gasausbeute falsch berechnet und dadurch Versuchsergebnisse falsch gedeutet. Eine für die Auswertung von Fermentationsversuchen hinreichend genaue Erfassung der flüchtigen Substanzen ist nur anhand der vollständigen Gärproduktanalyse der Silagen möglich. Für die Nutzung der Analysenergebnisse von Maissilagen wird eine verbesserte Gleichung zur Korrektur des TS-Gehaltes vorgeschlagen.
description: LANDTECHNIK, Bd. 63 Nr. 2 (2008)
Pointed homotopy and pointed lax homotopy of 2-crossed module maps
Creators: name: Gohla, Bjorn
name: Martins, Joao Faria
Publisher: name: arXiv
Year: 2012
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18D05, 18D20 (Primary), 55Q15 (Secondary)

description: We address the (pointed) homotopy theory of 2-crossed modules (of groups), which are known to faithfully represent Gray 3-groupoids, with a single object, and also connected homotopy 3-types. The homotopy relation between 2-crossed module maps will be defined in a similar way to Crans' 1-transfors between strict Gray functors, however being pointed, thus this corresponds to Baues' homotopy relation between quadratic module maps. Despite the fact that this homotopy relation between 2-crossed module morphisms is not, in general, an equivalence relation, we prove that if $A$ and $A'$ are 2-crossed modules, with the underlying group $F$ of $A$ being free (in short $A$ is free up to order one), then homotopy between 2-crossed module maps $A \to A'$ yields, in this case, an equivalence relation. Furthermore, if a chosen basis $B$ is specified for $F$, then we can define a 2-groupoid $HOM_B(A,A')$ of 2-crossed module maps $A \to A'$, homotopies connecting them, and 2-fold homotopies between homotopies, where the latter correspond to (pointed) Crans' 2-transfors between 1-transfors. We define a partial resolution $Q^1(A)$, for a 2-crossed module $A$, whose underlying group is free, with a canonical chosen basis, together with a projection map ${\rm proj}\colon Q^1(A) \to A$, defining isomorphisms at the level of 2-crossed module homotopy groups. This resolution (which is part of a comonad) leads to a weaker notion of homotopy (lax homotopy) between 2-crossed module maps, which we fully develop and describe. In particular, given 2-crossed modules $A$ and $A'$, there exists a 2-groupoid ${HOM}_{\rm LAX}(A,A')$ of (strict) 2-crossed module maps $A \to A'$, and their lax homotopies and lax 2-fold homotopies. The associated notion of a (strict) 2-crossed module map $f\colon A \to A'$ to be a lax homotopy equivalence has the two-of-three property, and it is closed under retracts.
description: v3: Major revision. A perfected version will appear in Advances in Mathematics
Meson production in two-photon interactions at energies available at CERN Large Hadron Collider
Creators: name: Goncalves, V. P.
name: da Silva, D. T.
name: Sauter, W. K.
Publisher: name: arXiv
Year: 2012
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: The meson production cross sections are estimated considering photon-photon interactions in hadron - hadron collisions at CERN LHC energies. We consider a large number of mesons with photon-photon partial decay width well constrained by the experiment and some mesons which are currently considered as hadronic molecule and glueball candidates. Our results demonstrate that the experimental analysis of these states is feasible at CERN - LHC.
description: 5 pages, 1 figure, 4 tables. Version published in Physical Review C
Ein Leben für die Archäologie der Treverer : Zur Erinnerung an Dr. Hans Eiden (1912-2003)
Creators: name: Merten, Jürgen
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 35 (2003): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Schauder a priori estimates and regularity of solutions to boundary-degenerate elliptic linear second-order partial differential equations
Creators: name: Feehan, Paul M. N.
name: Pop, Camelia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: Computational Finance (q-fin.CP)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: Primary 35J70, secondary 60J60

description: We establish Schauder a priori estimates and regularity for solutions to a class of boundary-degenerate elliptic linear second-order partial differential equations. Furthermore, given a smooth source function, we prove regularity of solutions up to the portion of the boundary where the operator is degenerate. Degenerate-elliptic operators of the kind described in our article appear in a diverse range of applications, including as generators of affine diffusion processes employed in stochastic volatility models in mathematical finance, generators of diffusion processes arising in mathematical biology, and the study of porous media.
description: 58 pages, 1 figure. To appear in the Journal of Differential Equations. Incorporates final galley proof corrections corresponding to published version
A Hot Uranus Orbiting the Super Metal-rich Star HD77338 and the Metallicity - Mass Connection
Creators: name: Jenkins, James S.
name: Jones, Hugh R. A.
name: Tuomi, Mikko
name: Murgas, Felipe
name: Hoyer, Sergio
name: Jones, Matias I.
name: Barnes, John R.
name: Pavlenko, Yakiv V.
name: Ivanyuk, Oleksiy
name: Rojo, Patricio
name: Jordan, Andres
name: Day-Jones, Avril C.
name: Ruiz, Maria-Teresa
name: Pinfield, David J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We announce the discovery of a low-mass planet orbiting the super metal-rich K0V star HD77338 as part of our on-going Calan-Hertfordshire Extrasolar Planet Search. The best fit planet solution has an orbital period of 5.7361\pm0.0015 days and with a radial velocity semi-amplitude of only 5.96\pm1.74 m/s, we find a minimum mass of 15.9+4.7-5.3 Me. The best fit eccentricity from this solution is 0.09+0.25-0.09, and we find agreement for this data set using a Bayesian analysis and a periodogram analysis. We measure a metallicity for the star of +0.35\pm0.06 dex, whereas another recent work (Trevisan et al. 2011) finds +0.47\pm0.05 dex. Thus HD77338b is one of the most metal-rich planet host stars known and the most metal-rich star hosting a sub-Neptune mass planet. We searched for a transit signature of HD77338b but none was detected. We also highlight an emerging trend where metallicity and mass seem to correlate at very low masses, a discovery that would be in agreement with the core accretion model of planet formation. The trend appears to show that for Neptune-mass planets and below, higher masses are preferred when the host star is more metal-rich. Also a lower boundary is apparent in the super metal-rich regime where there are no very low-mass planets yet discovered in comparison to the sub-solar metallicity regime. A Monte Carlo analysis shows that this, low-mass planet desert, is statistically significant with the current sample of 36 planets at around the 4.5σ level. In addition, results from Kepler strengthen the claim for this paucity of the lowest-mass planets in super metal-rich systems. Finally, this discovery adds to the growing population of low-mass planets around low-mass and metal-rich stars and shows that very low-mass planets can now be discovered with a relatively small number of data points using stable instrumentation.
description: 25 pages, 15 figures, 5 tables, accepted for publication in ApJ
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 10 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Conservative 3+1 General Relativistic Variable Eddington Tensor Radiation Transport Equations
Creators: name: Cardall, Christian Y.
name: Endeve, Eirik
name: Mezzacappa, Anthony
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present conservative 3+1 general relativistic variable Eddington tensor radiation transport equations, including greater elaboration of the momentum space divergence (that is, the energy derivative term) than in previous work. These equations are intended for use in simulations involving numerical relativity, particularly in the absence of spherical symmetry. The independent variables are the lab frame coordinate basis spacetime position coordinates and the particle energy measured in the comoving frame. With an eye towards astrophysical applications---such as core-collapse supernovae and compact object mergers---in which the fluid includes nuclei and/or nuclear matter at finite temperature, and in which the transported particles are neutrinos, we pay special attention to the consistency of four-momentum and lepton number exchange between neutrinos and the fluid, showing the term-by-term cancellations that must occur for this consistency to be achieved.
description: Version accepted by Phys. Rev. D
Achter Deutscher Kunsthistorikertag Basel, 3. - 6. August 1960
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 10 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Establishment of S&R Concept of operations
Creators: name: Iliopoulos, Nikolaos
name: Koukouzas, Antonis
name: Chalaris, Michail
name: Kanavos, Anastasios
name: Dumitrascu, Alexandru
name: Ogrezeanu, Andrei
name: Ferner, Pia
name: Scheuer, Sabrina
name: Bertram, Svenja
name: Dinkelbach, Rebecca
name: Vourvachis, Iosif
name: Santorinaios, Christodoulos
Publisher: name: Zenodo
Year: 2021
Subjects: Search and Rescue
Emergency Management

description: The purpose of the following deliverable is to examine the Search and Rescue procedures as a system. Operational and managerial aspects will be analyzed, focusing on strategies, tactics, policies, and constraints affecting the system, such as Search & Rescue System Components and Management & Organizational Improvements.
 The basic principles and theories of search management are divided into organization, management, leadership, strategy, tactics, and clue awareness. These fundamentals, when used effectively and efficiently, will normally render successful searches. Several key actions and decisions must be made by SAR management personnel. In the majority of searches, these actions have proven to be highly successful in locating the lost or missing subject.
 The SAR system cannot be effective without management. The management task is defined as “consisting of organizing groups of individuals so that they work together towards common goals or, in other words, deciding what has to be done and getting other people to do it” and can be achieved “through the process of planning, making decisions, organizing, leading, motivating, communicating and controlling”.
Homogeneous Einstein metrics on generalized flag manifolds with five isotropy summands
Creators: name: Arvanitoyeorgos, Andreas
name: Chrysikos, Ioannis
name: Sakane, Yusuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C25 (Primary) 53C30 (Secondary)

description: We construct the homogeneous Einstein equation for generalized flag manifolds $G/K$ of a compact simple Lie group $G$ whose isotropy representation decomposes into five inequivalent irreducible $\Ad(K)$-submodules. To this end we apply a new technique which is based on a fibration of a flag manifold over another flag manifold and the theory of Riemannian submersions. We classify all generalized flag manifolds with five isotropy summands, and we use Gröbner bases to study the corresponding polynomial systems for the Einstein equation. For the generalized flag manifolds E_6/(SU(4) x SU(2) x U (1) x U (1)) and E_7/(U(1) x U(6)) we find explicitely all invariant Einstein metrics up to isometry. For the generalized flag manifolds SO(2\ell +1)/(U(1) x U (p) x SO(2(\ell -p-1)+1)) and SO(2\ell)/(U(1) x U (p) x SO(2(\ell -p-1))) we prove existence of at least two non Kähler-Einstein metrics. For small values of $\ell$ and $p$ we give the precise number of invariant Einstein metrics.
description: 33 pages (Some misprints in the text and Table 3, were corrected)
Mitgliederversammlung des Deutschen Vereins für Kunstwissenschaft e. V.
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 10 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Type Directed Partial Evaluation for Level-1 Shift and Reset
Creators: name: Ilik, Danko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: F.3.1, F.3.2, F.3.3

description: We present an implementation in the Coq proof assistant of type directed partial evaluation (TDPE) algorithms for call-by-name and call-by-value versions of shift and reset delimited control operators, and in presence of strong sum types. We prove that the algorithm transforms well-typed programs to ones in normal form. These normal forms can not always be arrived at using the so far known equational theories. The typing system does not allow answer-type modification for function types and allows delimiters to be set on at most one atomic type. The semantic domain for evaluation is expressed in Constructive Type Theory as a dependently typed monadic structure combining Kripke models and continuation passing style translations.
description: In Proceedings COS 2013, arXiv:1309.0924
Deutscher Glockenatlas, Württemberg und Hohenzollern
Creators: name: Meyer, Erich
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Deutscher Glockenatlas, Württemberg und Hohenzollern. Bearbeitet von Sigrid Thurm. Herausgegeben von Günther Grundmann. Deutscher Kunstverlag, München-Berlin, 1959. 715 S., 476 Abb.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 11 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Severity scoring systems for radiation-induced GI injury – prioritization for use of GI-ARS medical countermeasures
Creators: name: Kenchegowda, Doreswamy
name: Bolduc, David L.
name: Kurada, Lalitha
name: Blakely, William F.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 111714
subject: Mental Health

description: Severity scoring systems for ionizing radiation-induced gastrointestinal injury have been used in animal radiation models, human studies involving the use of radiation therapy, and human radiation accidents. Various radiation exposure scenarios (i.e. total body irradiation, total abdominal irradiation, etc.) have been used to investigate ionizing radiation-induced gastrointestinal injury. These radiation-induced gastrointestinal severity scoring systems are based on clinical signs and symptoms and gastrointestinal-specific biomarkers (i.e. citrulline, etc.). In addition, the time course for radiation-induced changes in blood citrulline levels were compared across various animal (i.e. mice, minipigs, Rhesus Macaque, etc.) and human model systems. A worksheet tool was developed to prioritize individuals with severe life-threatening gastrointestinal acute radiation syndrome, based on the design of the Exposure and Symptom Tool addressing hematopoietic acute radiation syndrome, to rescue individuals from potential gastrointestinal acute radiation syndrome injury. This tool provides a triage diagnostic approach to assist first responders to assess individuals suspected of showing gastrointestinal acute radiation syndrome severity to guide medical management, hence enhancing medical readiness for managing radiological casualties.
Top quark physics in the Vector Color-Octet Model
Creators: name: Dutta, Sukanta
name: Goyal, Ashok
name: Kumar, Mukesh
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study and constrain the parameter space of the vector color-octet model from observed data at Tevatron by studying top quark pair production and associated observables afbt and spin-correlation. In particular we study invariant mass and rapidity dependence of afbt at Tevatron. In addition to FC couplings we extend our study to include FV coupling involving first & third generation quarks for both these processes. In order to ensure that we remain within the constraints imposed by LHC data, we analyze the charge asymmetry, p_T spectrum & invariant mass in t\bar t production data at LHC. The constraints from dijet resonance searches performed by LHC are also considered. We also explore the contribution of this model to single top quark production mediated by charged & neutral color-octet vector bosons. FV couplings introduced then induce same-sign top-pair production process which is analyzed for both hadron colliders. We have incorporated effect of finite decay width of color octets on these processes. We find that it is possible to explain the observed afbt anomaly in color-octet vector model without transgressing production cross sections of all these processes both through FC and FV couplings at Tevatron. We predict best point sets in model parameter space for specific choices of color-octet masses corresponding to chi^2_min evaluated using mttb and dyy spectrum of afbt from observed data set at Tevatron (8.7 fb-1). We find that single top quark production is more sensitive to FC and FV couplings in comparison to top-pair production. We provide 95% exclusion contours on the plane of FV chiral couplings from recent data at Tevatron, CMS and ATLAS corresponding to nonobservability of large same-sign dilepton events. The four observed point sets are consistent with the cross section, charge asymmetry and spin-correlation measurements for t\bar t production & dijet searches at LHC.
description: 27 pages, 21 figures
Economic Brief 5: Key Recommendations. Social Services, Social Welfare and Community Development in the Arctic
Creators: name: JUSTNORTH
Publisher: name: Zenodo
Year: 2023
Subjects: Arctic economies, Economic development, Sustainable development, Values

description: 1. Investment in public transport systems needs to be increased and public transport's benefits should be better distributed, especially towards already disadvantaged communities and areas.
2. Corporate Social Responsibility (CSR) frameworks, which have the potential to be a contributor to Arctic welfare, should stimulate closer collaboration between local communities, national authorities and companies. The aim should be to ensure that largescale economic projects have more local benefits.
3. CSR principles should be codified into legal requirements (rather than being a charitable decision).
Decentralized Routing on Spatial Networks with Stochastic Edge Weights
Creators: name: Hoffmann, Till
name: Lambiotte, Renaud
name: Porter, Mason A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Social and Information Networks (cs.SI)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We investigate algorithms to find short paths in spatial networks with stochastic edge weights. Our formulation of the problem of finding short paths differs from traditional formulations because we specifically do not make two of the usual simplifying assumptions: (1) we allow edge weights to be stochastic rather than deterministic; and (2) we do not assume that global knowledge of a network is available. We develop a decentralized routing algorithm that provides en route guidance for travelers on a spatial network with stochastic edge weights without the need to rely on global knowledge about the network. To guide a traveler, our algorithm uses an estimation function that evaluates cumulative arrival probability distributions based on distances between pairs of nodes. The estimation function carries a notion of proximity between nodes and thereby enables routing without global knowledge. In testing our decentralized algorithm, we define a criterion that allows one to discriminate among arrival probability distributions, and we test our algorithm and this criterion using both synthetic and real networks.
description: 10 pages, 9 figures (some with multiple parts)
Combined radiation injury and its impacts on radiation countermeasures and biodosimetry
Creators: name: Kiang, Juliann G.
name: Blakely, William F.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Preparedness for medical responses to major radiation accidents and the increasing threat of nuclear warfare worldwide necessitates an understanding of the complexity of combined radiation injury (CI) and identifying drugs to treat CI is inevitably critical. The vital sign and survival after CI were presented. The molecular mechanisms, such as microRNA pathways, NF-κB-iNOS-IL-18 pathway, C3 production, the AKT-MAPK cross-talk, and TLR/MMP increases, underlying CI in relation to organ injury and mortality were analyzed. At present, no FDA-approved drug to protect, mitigate, or treat CI is available. The development of CI-specific medical countermeasures was reviewed. Because of the worsened acute radiation syndrome resulting from CI, diagnostic triage can be problematic. Therefore, biodosimetry and CI are bundled together with the need to establish effective triage methods with CI. CI mouse model studies at AFRRI are reviewed addressing molecular responses, findings from medical countermeasures, and a proposed plasma proteomic biodosimetry approach based on a panel of radiation-responsive biomarkers (i.e., CD27, Flt-3L, GM-CSF, CD45, IL-12, TPO) negligibly influenced by wounding in an algorithm used for dose predictions is described.
title: Extending Perfect Spatial Hashing to Index Tuple-based Graphs Representing Super Carbon Nanotubes
Creators: name: Burger, Michael
name: Nguyen, Giang Nam
name: Bischof, Christian
Publisher: name: Elsevier
Year: 2021

description: In this paper, we demonstrate how to extend perfect spatial hashing (PSH) in order to hash multidimensional scientific data. As a use case we employ the problem domain of indexing nodes in a graph that represents Super Carbon Nanotubes (SCNTs). The goal of PSH is to hash multidimensional data without collisions. Since PSH results from the research on computer graphics, its principles and methods have only been tested on 2- and 3-dimensional problems. In our case, we need to hash up to 28 dimensions. In contrast to the original applications of PSH, we do not focus on GPUs as target hardware but on an efficient CPU implementation. Thus, this paper highlights the extensions to the original algorithm to make it suitable for higher dimensions. Comparing the compression and performance results of the new PSH based graphs and a structure-tailored custom data structure in our parallelized SCNT simulation software, we find that PSH in some cases achieves better compression by a factor of 1.7 while only increasing the total runtime by several percent. In particular, after our extension, PSH can also be employed to index sparse multidimensional scientific data from other domains where PSH can avoid additional index-structures like KD- or R-trees.
On the anisotropic density distribution on large scales
Creators: name: Pápai, Péter
name: Sheth, Ravi K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Motivated by the recent detection of an enhanced clustering signal along the major axis of haloes in N-body simulations, we derive a formula for the anisotropic density distribution around haloes and voids on large scales. Our model, which assumes linear theory and that the formation and orientation of nonlinear structures are strongly correlated with the Lagrangian shear, is in good agreement with measurements. We also show that the measured amplitude is inconsistent with a model in which the alignment is produced by the initial inertia rather than shear tensor.
description: 6 pages, 3 figures; With a moderate revision of the original version, as published in MNRAS
Relativistic spin operator and Lorentz transformation of spin state of a massive Dirac particle
Creators: name: Choi, Taeseung
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have shown the covariant relativistic spin operator is equivalent to the spin operator commuting with the free Dirac Hamiltonian. This implies that the covariant relativistic spin operator is a good quantum observable. The covariant relativistic spin operator has the pure quantum contribution which does not exist in the classical covariant spin operator. Based on this equivalence reduced spin states can be claerly defined. We have shown the change in the entropy of a reduced spin density matrix sweeps through the whole range according to the relative motion of an observer.
description: published version
Fuglsang/Erhardt, Der Bordesholmer Altar des Hans Brüggemann
Creators: name: Haase, Max
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Rezension zu: Fuglsang/Erhardt, Der Bordesholmer Altar des Hans Brüggemann. Schleswig, Verlag Bemaerts und Preetz, Gerdes Verlag, 1959. 20 Bl., 130 Abb.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 6 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Das Gesamtkunstwerk in Byzanz
Creators: name: Belting, Hans
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 7 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Inflation with a graceful exit and entrance driven by Hawking radiation
Creators: name: Modak, Sujoy Kumar
name: Singleton, Douglas
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a model for cosmological inflation which has a natural "turn on" and a natural "turn off" mechanism. In our model inflation is driven by the Hawking-like radiation that occurs in Friedman-Robertson-Walker (FRW) space-time. This Hawking-like radiation results in an effective negative pressure "fluid" which leads to a rapid period of expansion in the very early Universe. As the Universe expands the FRW Hawking temperature decreases and the inflationary expansion turns off and makes a natural transition to the power law expansion of a radiation dominated universe. The "turn on" mechanism is more speculative, but is based on the common hypothesis that in a quantum theory of gravity at very high temperatures/high densities Hawking radiation will stop. Applying this speculation to the very early Universe implies that the Hawking-like radiation of the FRW space-time will be turned off and therefore the inflation driven by this radiation will turn off.
description: 19 pages, 2 figures revtex, matches PRD published version
Severity scoring systems for radiation-induced GI injury - Prioritization for use of GI-ARS medical countermeasures
Creators: name: Kenchegowda, Doreswamy
name: Bolduc, David L
name: Kurada, Lalitha
name: Blakely, William F.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 111714
subject: Mental Health

description: Severity scoring systems for ionizing radiation-induced gastrointestinal injury have been used in animal radiation models, human studies involving the use of radiation therapy, and radiation accidents. Various radiation exposure scenarios (i.e., total body irradiation, total abdominal irradiation, etc.) have been used to investigate ionizing radiation-induced gastrointestinal injury. These radiation-induced GI severity scoring systems are based on clinical signs and symptoms and gastrointestinal-specific biomarkers (i.e., citrulline, etc.). In addition, the time course for radiation-induced changes in blood citrulline levels were compared across various animal (i.e., mice, minipigs, Rhesus Macaque, etc.) and human model systems. A worksheet tool was developed to prioritize individuals with severe life-threatening gastrointestinal acute radiation syndrome, based on the design of the Exposure and Symptom Tool addressing hematopoietic acute radiation syndrome, to rescue individuals from potential gastrointestinal acute radiation syndrome injury. This tool provides a triage diagnostic approach to assist first-responders to assess individuals suspected of showing gastrointestinal acute radiation syndrome severity to guide medical management, hence enhancing medical readiness for managing radiological casualties.
Bei der Redaktion eingegangene Neuerscheinungen
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 8 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Bei der Redaktion eingegangene Neuerscheinungen
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 9 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Constraining thermal dust emission in distant galaxies with number counts and angular power spectra
Creators: name: Addison, Graeme E.
name: Dunkley, Joanna
name: Bond, J. Richard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform a joint fit to differential number counts from Spitzer's MIPS and Herschel's SPIRE instruments, and angular power spectra of cosmic infrared background (CIB) anisotropies from SPIRE, Planck, the Atacama Cosmology Telescope, and the South Pole Telescope, which together span 220 < ν/ GHz < 4300 (70 < λ/ μm < 1400). We simultaneously constrain the dust luminosity function, thermal dust spectral energy distribution (SED) and clustering properties of CIB sources, and the evolution of these quantities over cosmic time. We find that the data strongly require redshift evolution in the thermal dust SED. In our adopted parametrization, this evolution takes the form of an increase in graybody dust temperature at high redshift, but it may also be related to a temperature - dust luminosity correlation or evolution in dust opacity. The counts and spectra together constrain the evolution of the thermal dust luminosity function up to z ~ 2.5-3, complementing approaches relying on rest-frame mid-infrared observations of the rarest bright objects. We are able to fit the power spectra without requiring a complex halo model approach, and show that neglecting scale-dependent halo bias may be impairing analyses that do use this framework.
description: 22 pages, 11 figures, updated to match version accepted by MNRAS, various changes to the text, new section 5.4 and figure added, no changes to results or conclusions
Das Fotobuch als multimodale Metapher am Beispiel von Geert van Kesterens Baghdad Calling (2008)
Creators: name: Bühler, Daniel
Publisher: name: NEUE kunstwissenschaftliche forschungen
Year: 2019

description: Metaphern sind keine sprachlichen Phänomene. Metapher sind kognitive Prozesse, die beinhalten, dass Merkmale eines mental repräsentierten Bereiches auf einen anderen übertragen werden. Dies ist die Grundannahme der Conceptual Metaphor Theory (CMT) nach George Lakoff und Mark Johnson, die grundlegend für die Überlegungen zur multimodalen Metapher ist. Der Beitrag stellt zunächst die CMT vor. Anschließend werden anhand eines Beispiels die Überlegungen zur multimodalen Metapher nach Charles Forceville erläutert. Zum Abschluss wird gezeigt, auf welche Weisen multimodale Metaphern als Fotobücher materialisiert werden können, am Beispiel des Fotobuchs Baghdad Calling des Fotografen Geert van Kesteren.
description: NEUE kunstwissenschaftliche forschungen, Nr. 3 (2017): Digitalisierung
Natürlichkeit
Creators: name: Birnbacher, Dieter
Publisher: name: Online Encyclopedia Philosophy of Nature
Year: 2019

description: Dem „Natürlichen“ wird gewöhnlich zugerechnet, was auch ohne den Menschen da wäre und auch ohne den Menschen so beschaffen wäre, wie es uns begegnet, dem Gegenbegriff, dem „Künstlichen“, was nur durch den Menschen da ist oder nur durch den Menschen so geworden ist, wie wir es vorfinden. Beide Begriffe bezeichnen die Pole eines Spektrums, die als solche nur selten realisiert sind. Zugleich fungiert Natürlichkeit sowohl in der philosophischen Tradition wie auch der Alltagsmoral als normatives Prinzip, das das Gewachsene gegenüber dem durch Menschenhand Gemachten auszeichnet. Dabei bedingt die Vielfalt seiner Bedeutungen eine entsprechende Vielfalt dessen, was jeweils als „natürlich“ dem Nicht-Natürlichen vorgeordnet wird. Während zweifelhaft ist, ob Natürlichkeit im Sinne von Unberührtheit durch den Menschen als intrinsischer Selbstwert gelten kann (außer in speziellen Bereichen wie dem Naturschutz, etwa im Fall von Nationalparks), übernimmt die Bezugnahme auf Natürlichkeit eine Reihe von Funktionen (wie die der Entlastung von Verantwortung und der Abwehr von mit schwer zu überschauenden Risiken behafteten Innovationen), für die nicht auszuschließen ist, dass sie im Einzelnen als berechtigt gelten können.
description: Online Encyclopedia Philosophy of Nature, 2019
Seevölkerrechtliche Pflichten im Fall von Seenotrettung
Creators: name: Koukounakis, Luca
Publisher: name: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online
Year: 2019

description: In Auseinandersetzung mit dem Thema der Seenotrettung aus völkerrechtlicher Sicht werden die Pflicht zur Einrichtung von Such- und Rettungsdiensten sowie vertieft die Pflicht zur Hilfeleistung behandelt. Gegenstand genauerer Untersuchung ist dabei, ob letztere die Ausschiffung der Geretteten zwingend umfasst. Dazu werden völkergewohnheitsrechtliche Regeln, die ein solches vorschreiben könnten, etwa das flüchtlingsrechtliche Gebot des non-refoulement, herangezogen. Auf Grundlage historischer wie zeitgenössischer Staatenpraxis und Stellungnahmen bedeutender völkerrechtlicher Autoren gelangt der Verfasser zu dem Ergebnis, dass erstere zwar weiterhin heterogen ist, sich aber dennoch beträchtliche Bemühungen in dem Umgang mit Geretteten zeigen. Eine pauschale Pflicht zur Ausschiffung von Geretteten lässt sich aus dem Völkerrecht allerdings nicht ableiten. In its examination of maritime rescue from the perspective of public international law, this article sheds light on the obligation to establish search and rescue services in general and on the duty to render assistance in particular. Subject of a closer investigation is, whether the duty to render assistance obliges the rescuers to disembark the rescued. During this analysis, norms of customary international law that could be interpreted to stipulate such a duty, for instance the rule of non-refoulement, are analyzed. Based on both historic and contemporary state practice and statements of prominent authors of public international law, the author concludes, that the state practice continues to be heterogenous, despite considerable efforts in the treatment of the rescued. However, public international law does not stipulate a general obligation to disembark the rescued.
description: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online, Nr. 1 (2019): StudZR-WissOn
Towards azimuthal anisotropy of direct photons
Creators: name: Goloviznin, V. V.
name: Snigirev, A. M.
name: Zinovjev, G. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Intensive radiation of magnetic bremsstrahlung type (synchrotron radiation) resulting from the interaction of escaping quarks with the collective confining colour field is discussed as a new possible mechanism of observed direct photon anisotropy.
description: 3 pages, Comments and references added, accepted to JETP Letters (Pis'ma v ZhETF)
Equivariant Bifurcation and Absolute Irreducibility in $\R^8$ A contribution to the Ize conjecture
Creators: name: Lauterbach, Reiner
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34K18, 37C80, 58D19

description: M. Field [5] refers to an unpublished work by J. Ize for a result that loss of stability through an absolutely irreducible representation of a compact Lie group leads to bifurcation of steady states. The main ingredient of the proof is the hypotheses, that for an absolutely irreducible representation of a compact Lie group there exists a closed subgroup whose fixed point space is odd dimensional. Then, using Brouwer degree, one gets the result. We refer to the hypotheses that for an absolutely irreducible representation of a compact Lie group there exists at least one subgroup with an odd dimensional fixed point space as the algebraic Ize conjecture (AIC). Lauterbach and Matthews [10] have shown that the (AIC) is in general not true. In fact they have constructed three infinite families of finite subgroups of SO{4} which act absolutely irreducibly on $\R^4$ and for each of them any isotropy subgroup has an even dimensional fixed point space. Moreover in [10] it is shown that in spite of this failure of the (AIC) the original conjecture is true at least for groups in two of these three families. In this paper we show a similar bifurcation result for the third family defined in [10]. We go on and construct a family of groups acting absolutely irreducibly on $\R^8$ which have only even dimensional fixed point spaces. Then we discuss the steady state bifurcations in this case. We end this paper with a discussion on how to extend the results in [10] to larger sets of groups which act on $\R^{4}$.
Device Considerations for Nanophotonic CMOS Global Interconnects
Creators: name: Manipatruni, Sasikanth
name: Lipson, Michal
name: Young, Ian A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: C.1.4; B.4.3

description: We introduce an analytical framework to understand the path for scaling nanophotonic interconnects to meet the energy and footprint requirements of CMOS global interconnects. We derive the device requirements for sub 100 fJ/cm/bit interconnects including tuning power, serialization-deserialization energy, optical insertion losses, extinction ratio and bit error rates. Using CMOS with integrated nanophotonics as an example platform, we derive the energy/bit, linear and areal bandwidth density of optical interconnects. We also derive the targets for device performance which indicate the need for continued improvements in insertion losses (<8dB), laser efficiency, operational speeds (>40 Gb/s), tuning power (<100 μW/nm), serialization-deserialization (< 10 fJ/bit/Operation) and necessity for spectrally selective devices with wavelength multiplexing (> 6 channels).
description: Accepted to IEEE Journal of Special Topics in Quantum Electronics
title: A Unified and Memory Efficient Framework for Simulating Mechanical Behavior of Carbon Nanotubes
Creators: name: Burger, Michael
name: Bischof, Christian
name: Schröppel, Christian
name: Wackerfuß, Jens
Publisher: name: Elsevier
Year: 2021

description: Carbon nanotubes possess many interesting properties, which make them a promising material for a variety of applications. In this paper, we present a unified framework for the simulation of the mechanical behavior of carbon nanotubes. It allows the creation, simulation and visualization of these structures, extending previous work by the research group “MISMO” at TU Darmstadt. In particular, we develop and integrate a new matrix-free iterative solving procedure, employing the conjugate gradient method, that drastically reduces the memory consumption in comparison to the existing approaches. The increase in operations for the memory saving approach is partially offset by a well scaling shared-memory parallelization. In addition the hotspots in the code have been vectorized. Altogether, the resulting simulation framework enables the simulation of complex carbon nanotubes on commodity multicore desktop computers.
Codensity and the ultrafilter monad
Creators: name: Leinster, Tom
Publisher: name: arXiv
Year: 2012
Subjects: subject: Category Theory (math.CT)
subject: General Topology (math.GN)
subject: Logic (math.LO)
subject: FOS: Mathematics

description: Even a functor without an adjoint induces a monad, namely, its codensity monad; this is subject only to the existence of certain limits. We clarify the sense in which codensity monads act as substitutes for monads induced by adjunctions. We also expand on an undeservedly ignored theorem of Kennison and Gildenhuys: that the codensity monad of the inclusion of (finite sets) into (sets) is the ultrafilter monad. This result is analogous to the correspondence between measures and integrals. So, for example, we can speak of integration against an ultrafilter. Using this language, we show that the codensity monad of the inclusion of (finite-dimensional vector spaces) into (vector spaces) is double dualization. From this it follows that compact Hausdorff spaces have a linear analogue: linearly compact vector spaces. Finally, we show that ultraproducts are categorically inevitable: the codensity monad of the inclusion of (finite families of sets) into (families of sets) is the ultraproduct monad.
description: 32 pages. Version 3: now includes categorical characterization of ultraproducts. Final journal version
Optomechanically induced transparency in membrane-in-the-middle setup at room temperature
Creators: name: Karuza, M.
name: Biancofiore, C.
name: Bawaj, M.
name: Molinelli, C.
name: Galassi, M.
name: Natali, R.
name: Tombesi, P.
name: Di Giuseppe, G.
name: Vitali, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the analogue of electromagnetically induced transparency in a room temperature cavity optomechanics setup formed by a thin semitransparent membrane within a Fabry-Pérot cavity. Due to destructive interference, a weak probe field is completely reflected by the cavity when the pump beam is resonant with the motional red sideband of the cavity. Under this condition we infer a significant slowing down of light of hundreds of microseconds, which is easily tuned by shifting the membrane along the cavity axis. We also observe the associated phenomenon of electromagnetically induced amplification which occurs due to constructive interference when the pump is resonant with the blue sideband.
description: 5 pages, 4 figures