cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A data management strategy for transportable natural language interfaces
Creators: name: Johnson, Julia Ann
Publisher: name: University of British Columbia
Year: 2010

description: This thesis focuses on the problem of designing a highly portable domain independent natural language interface for standard relational database systems. It is argued that a careful strategy for providing the natural language interface (NLI) with morphological, syntactic, and semantic knowledge about the subject of discourse and the database is needed to make the NLI portable from one subject area and database to another. There has been a great deal of interest recently in utilizing the database system to provide that knowledge. Previous approaches attempted to solve this challenging problem by capturing knowledge from the relational database (RDB) schema, but were unsatisfactory for the following reasons: 1.) RDB schemas contain referential ambiguities which seriously limit their usefulness as a knowledge representation strategy for NL understanding. 2.) Knowledge captured from the RDB schema is sensitive to arbitrary decisions made by the designer of the schema. In our work we provide a new solution by applying a conceptual model for database schema design to the design of a portable natural language interface. It has been our observation that the process used for adapting the natural language interface to a new subject area and database overlaps considerably with the process of designing the database schema. Based on this important observation, we design an enhanced natural language interface with the following significant features: complete independence of the linguistic component from the database component, economies in attaching the natural language and DB components, and sharing of knowledge about the relationships in the subject of discourse for database schema design and NL understanding.
Clistopyga chaconi
Creators: name: Santiago Bordera
name: Ilari Eerikki Sääksjärvi
name: Carol Castillo
name: Edgard Palacio
name: Alejandra González-Moreno
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Clistopyga
Clistopyga chaconi

description: Diagnosis of the C. chaconi species group
 Gena in anterior view slightly rounded or almost straight and moderately to strongly constricted below eyes. Occipital carina complete, weakly to strongly raised, forming a dorsomedial flange (for a comparison with a typical Clistopyga head shape, see Bordera et al. 2014). Occiput in dorsal view straight. Malar space 0.5–1.1 times as long as basal mandibular width. Antenna with 30–36 flagellomeres, first flagellomere 4.6–7.0 times as long as wide. Epomia absent. Posterior part of median lobe of mesoscutum not prominent. Metapleuron 1.6–2.1 times as long as deep. Propodeum without lateromedian longitudinal carina, 0.9–1.2 times as long as medially wide in dorsal view. Submetapleural carina complete, strongly raised and extending back to insertion of hind coxa. Hind leg with femur 3.4–4.2 times as long as deep and 0.8–1.0 times as long as tibia. Sternite I of metasoma extending back 0.5–0.7 of length of tergite. Ovipositor stout or slender, upcurved at apical 0.3–0.5, not denticulate in basal 0.35, matt, 1.1–1.6 times as long as hind tibia. Ovipositor sheath 0.9–1.3 times as long as hind tibia, without denticles at basal ventral margin. Female fore leg with tibia unspecialized. Male gena without longitudinal concavity in ventral part.
description: Published as part of Santiago Bordera, Ilari Eerikki Sääksjärvi, Carol Castillo, Edgard Palacio & Alejandra González-Moreno, 2016, The Neotropical species of Clistopyga (Hymenoptera, Ichneumonidae, Pimplinae). Part I: the C. chaconi species group, with the description of eleven new species, pp. 1-37 in European Journal of Taxonomy 206 on page 3, DOI: 10.5852/ejt.2016.206, http://zenodo.org/record/269287
Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
Creators: name: Black, A. T.
name: Gomez, E.
name: Turner, L. D.
name: Jung, S.
name: Lett, P. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We observe coherent spin oscillations in an antiferromagnetic spin-1 Bose-Einstein condensate of sodium. The variation of the spin oscillations with magnetic field shows a clear signature of nonlinearity, in agreement with theory, which also predicts anharmonic oscillations near a critical magnetic field. Measurements of the magnetic phase diagram agree with predictions made in the approximation of a single spatial mode. The oscillation period yields the best measurement to date of the sodium spin-dependent interaction coefficient, determining that the difference between the sodium spin-dependent s-wave scattering lengths $a_{f=2}-a_{f=0}$ is $2.47\pm0.27$ Bohr radii.
description: 5 pages, 2 figures. Changes: added reference, minor corrections
Estimation and Inference of Quantile Regression for Survival Data Under Biased Sampling
Creators: name: Xu, Gongjun
name: Sit, Tony
name: Wang, Lan
name: Huang, Chiung-Yu
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Biased sampling occurs frequently in economics, epidemiology, and medical studies either by design or due to data collecting mechanism. Failing to take into account the sampling bias usually leads to incorrect inference. We propose a unified estimation procedure and a computationally fast resampling method to make statistical inference for quantile regression with survival data under general biased sampling schemes, including but not limited to the length-biased sampling, the case-cohort design, and variants thereof. We establish the uniform consistency and weak convergence of the proposed estimator as a process of the quantile level. We also investigate more efficient estimation using the generalized method of moments and derive the asymptotic normality. We further propose a new resampling method for inference, which differs from alternative procedures in that it does not require to repeatedly solve estimating equations. It is proved that the resampling method consistently estimates the asymptotic covariance matrix. The unified framework proposed in this article provides researchers and practitioners a convenient tool for analyzing data collected from various designs. Simulation studies and applications to real datasets are presented for illustration. Supplementary materials for this article are available online.
Small Molecule Mediated Protein Degradation - From  Art to Science
Creators: name: Kostic, Milka
Publisher: name: Zenodo
Year: 2019
Subjects: targeted protein degradation
PROTACs
degrader molecules
small molecules recruiters of neo-activity
SWOT analysis
neo-activity
protein knockdown
protein CRISPR

description: This presentations was given at the the inaugural Proteome-Targeted Drug Discovery Summit 2019 that brought together people interested in pushing the envelop on small-ish molecule based drug discovery and development. From this perspective degrader molecules have really done a lot over the last 5 years to rekindle our imagination of what modalities we can use to go after the undrugged targets. My view point on this emerging field is one of an outsider looking in, and I therefore asked the audience members to share what they think, as well as offered some of my suggestions on how to grow the field further. The most important suggestions I shared are: (1) the importance of developing standards and rules - both related how to validate degrader molecules but also how to share data and enforce the standards - and nucleating a community to carry this work forward; (2) the importance of advocating and promoting the use of small molecule degraders as tools for basic research that is highly complementary to existing research tools; and (3) the importance to cast degraders into a broader perspective as just the first and most visible example of a brand new type of small molecules - one that act as recruiters/inducers of neo-activity.
Observation of tree-level B decays with $s\bar{s}$ Production from Gluon Radiation
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on our search for $B^- \to D^{(*)+}_s K^- π^-$, $\bar{B^0} \to D_s^{(*)+} K_S^0 π^-$, and $B^- \to D^{(*)+}_s K^- K^-$ decays in 383 million $\FourS \to B \Bbar$ events collected by the Babar detector at the PEP2 asymmetric-energy $B$-factory. The decays proceed via a tree-level $b\to c$ quark transition in which a gluon radiates into an $s\bar{s}$ pair. Their branching fractions are measured to be ${\cal B}(B^- \to D^+_s K^- π^-) = (2.02 \pm 0.13_{stat} \pm 0.38_{syst}) \times 10^{-4},$ ${\cal B}(B^- \to D^{*+}_s K^- π^-)= (1.67 \pm 0.16_{stat} \pm 0.35_{syst}) \times 10^{-4},$ ${\cal B}(\bar{B^0} \to D_s^{+} K_S^0 π^-)= (0.55 \pm 0.13_{stat} \pm 0.10_{syst}) \times 10^{-4},$ and ${\cal B}(B^- \to D_s^{+} K^- K^-) = (0.11 \pm 0.04_{stat} \pm 0.02_{syst}) \times 10^{-4}$. Upper limits at the 90% C.L. are set on ${\cal B}(\bar{B^0} \to D_s^{*+} K_S^0 π^-)< 0.55 \times 10^{-4}$ and ${\cal B}(B^- \to D_s^{*+} K^- K^-) < 0.15 \times 10^{-4}$. We present evidence that the invariant mass distributions of $D^{(*)+}_s K^-$ pairs from $B^- \to D^{(*)+}_s K^- π^-$ decays are inconsistent with the phase-space model, suggesting the presence of charm resonances lying below the $D^{(*)+}_s K^-$ threshold.
description: 7 pages, 9 postscript figures, submitted to PRL
Spin-Phonon Interaction in Yttrium Iron Garnet
Creators: name: Olsson, Kevin S.
name: Choe, Jeongheon
name: Rodriguez-Vega, Martin
name: Khalsa, Guru
name: Benedek, Nicole A.
name: Fang, Bin
name: Zhou, Jianshi
name: Fiete, Gregory A.
name: Li, Xiaoqin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-phonon interaction is an important channel for spin and energy relaxation in magnetic insulators. Understanding this interaction is critical for developing magnetic insulator-based spintronic devices. Quantifying this interaction in yttrium iron garnet (YIG), one of the most extensively investigated magnetic insulators, remains challenging because of the large number of atoms in a unit cell. Here, we report temperature-dependent and polarization-resolved Raman measurements in a YIG bulk crystal. We first classify the phonon modes based on their symmetry. We then develop a modified mean-field theory and define a symmetry-adapted parameter to quantify spin-phonon interaction in a phonon-mode specific way for the first time in YIG. Based on this improved mean-field theory, we discover a positive correlation between the spin-phonon interaction strength and the phonon frequency.
description: 12 pages, 4 figures, 1 table; (Supp. Info. 10 pages, 5 figures, 2 tables)
A Low-Mass H2 Component to the AU Microscopii Circumstellar Disk
Creators: name: France, Kevin
name: Roberge, Aki
name: Lupu, Roxana E.
name: Redfield, Seth
name: Feldman, Paul D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a determination of the molecular gas mass in the AU Microscopii circumstellar disk. Direct detection of a gas component to the AU Mic disk has proven elusive, with upper limits derived from ultraviolet absorption line and submillimeter CO emission studies. Fluorescent emission lines of H2, pumped by the OVI 1032 resonance line through the C-X (1 -- 1) Q(3) 1031.87 Å transition, are detected by the Far Ultraviolet Spectroscopic Explorer. These lines are used to derive the H2 column density associated with the AU Mic system. The derived column density is in the range N(H2) = 1.9 x 10^{17} - 2.8 x 10^{15} cm^{-2}, roughly two orders of magnitude lower than the upper limit inferred from absorption line studies. This range of column densities reflects the range of H2 excitation temperature consistent with the observations, T(H2) = 800 -- 2000 K, derived from the presence of emission lines excited by OVI in the absence of those excited by LyA. Within the observational uncertainties, the data are consistent with the H2 gas residing in the disk. The inferred N(H2) range corresponds to H2-to-dust ratios of < 1/30:1 and a total M(H2) = 4.0 x 10^{-4} - 5.8 x 10^{-6} Earth masses. We use these results to predict the intensity of the associated rovibrational emission lines of H2 at infrared wavelengths covered by ground-based instruments, HST-NICMOS, and the Spitzer-IRS.
description: ApJ, accepted. 9 pages, 4 figures, emulateapj
A Symplectic Test of the L-Functions Ratios Conjecture
Creators: name: Miller, Steven J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M26 (Primary), 11M41, 15A52 (Secondary)

description: Recently Conrey, Farmer and Zirnbauer conjectured formulas for the averages over a family of ratios of products of shifted L-functions. Their L-functions Ratios Conjecture predicts both the main and lower order terms for many problems, ranging from n-level correlations and densities to mollifiers and moments to vanishing at the central point. There are now many results showing agreement between the main terms of number theory and random matrix theory; however, there are very few families where the lower order terms are known. These terms often depend on subtle arithmetic properties of the family, and provide a way to break the universality of behavior. The L-functions Ratios Conjecture provides a powerful and tractable way to predict these terms. We test a specific case here, that of the 1-level density for the symplectic family of quadratic Dirichlet characters arising from even fundamental discriminants d \le X. For test functions supported in (-1/3, 1/3) we calculate all the lower order terms up to size O(X^{-1/2+epsilon}) and observe perfect agreement with the conjecture (for test functions supported in (-1, 1) we show agreement up to errors of size O(X^{-epsilon}) for any epsilon). Thus for this family and suitably restricted test functions, we completely verify the Ratios Conjecture's prediction for the 1-level density.
description: 29 pages, version 1.3 (corrected a typo in the proof of Lemma 3.2 and a few other typos, updated some references). To appear in IMRN
Long-range repulsive interaction between TTF molecules on a metal surface induced by charge transfer
Creators: name: Fernandez-Torrente, I.
name: Monturet, S.
name: Franke, K. J.
name: Fraxedas, J.
name: Lorente, N.
name: Pascual, J. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The low-coverage adsorption of a molecular electron donor, tetrathiafulvalene, on Au(111) is characterized by the spontaneous formation of superlattice of monomers, whose spacing exceeds the equilibrium distance of non-covalent interactions and depends on coverage. The origin of this peculiar growth mode is due to a long-range repulsive interaction between molecules. The analysis of molecular-pair distributions obtained by scanning tunneling microscopy measurements permits us to determine that the nature of TTF intermolecular interactions on Au (111) is electrostatic. A repulsion between molecules is caused by the accumulation of charge due to electron donation into the metal surface, as pictured through density functional theory calculations.
Cosmology from String Theory
Creators: name: Anchordoqui, Luis
name: Goldberg, Haim
name: Nawata, Satoshi
name: Nunez, Carlos
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore the cosmological content of Salam-Sezgin six dimensional supergravity, and find a solution to the field equations in qualitative agreement with observation of distant supernovae, primordial nucleosynthesis abundances, and recent measurements of the cosmic microwave background. The carrier of the acceleration in the present de Sitter epoch is a quintessence field slowly rolling down its exponential potential. Intrinsic to this model is a second modulus which is automatically stabilized and acts as a source of cold dark matter with a mass proportional to an exponential function of the quintessence field (hence realizing VAMP models within a String context). However, any attempt to saturate the present cold dark matter component in this manner leads to unacceptable deviations from cosmological data -- a numerical study reveals that this source can account for up to about 7% of the total cold dark matter budget. We also show that (1) the model will support a de Sitter energy in agreement with observation at the expense of a miniscule breaking of supersymmetry in the compact space; (2) variations in the fine structure constant are controlled by the stabilized modulus and are negligible; (3) ``fifth''forces are carried by the stabilized modulus and are short range; (4) the long time behavior of the model in four dimensions is that of a Robertson-Walker universe with a constant expansion rate (w = -1/3). Finally, we present a String theory background by lifting our six dimensional cosmological solution to ten dimensions.
description: Version to be published in Physical Review D
Stellar Populations of Luminous Evolved Galaxies at z~1.5
Creators: name: McGrath, Elizabeth J.
name: Stockton, Alan
name: Canalizo, Gabriela
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observational evidence has been mounting over the past decade that at least some luminous (~2 L*) galaxies have formed nearly all of their stars within a short period of time only 1-2x10^9 years after the Big Bang. These are examples of the first major episodes of star formation in the Universe and provide insights into the formation of the earliest massive galaxies. We have examined in detail the stellar populations of six z~1.5 galaxies that appear to be passively evolving, using both ground and space-based photometry covering rest-frame UV to visible wavelengths. In addition, we have obtained medium-resolution spectroscopy for five of the six galaxies, covering the rest-frame UV portion of the spectrum. Spectral synthesis modeling for four of these galaxies favors a single burst of star formation more than 1 Gyr before the observed epoch. The other two exhibit slightly younger ages with a higher dust content and evidence for a small contribution from either recent star formation or active nuclei. The implied formation redshifts for the oldest of these sources are consistent with previous studies of passive galaxies at high redshift, and improved stellar modeling has shown these results to be quite robust. It now seems clear that any valid galaxy formation scenario must be able to account for these massive (2x10^11 M_sun) galaxies at very early times in the Universe.
description: 10 pages, 3 figures (2 in color), accepted for publication in ApJ
Bar-representable visibility graphs and a related network flow problem
Creators: name: Wismath, Stephen Kenneth
Publisher: name: University of British Columbia
Year: 2010

description: A bar layout is a set of vertically oriented non-intersecting line segments in the plane called bars. The visibility graph associated with a layout is defined as the graph whose vertices correspond to the bars and whose edges represent the horizontal visibilities between pairs of bars. This dissertation is concerned with the characterization of bar-representable graphs: those graphs which are the visibility graphs of some bar layout. A polynomial time algorithm for determining if a given graph is bar-representable, and the subsequent construction of an associated layout are provided. Weighted and directed versions of the problem are also formulated and solved; in particular, polynomial time algorithms for the layout of such graphs are developed. The Planar Full Flow problem is to determine a plane embedding and an (acyclic) orientation of an undirected planar network that admits a feasible flow, that uses all arcs (except those incident upon the source or sink) to full capacity and maintains planarity. The connection of this flow problem to bar-representable graphs is exploited to solve the weighted case of the latter. As evidence that both the acyclicity and planarity constraints are necessary to obtain a polynomial algorithm for this problem, two natural variants of the Full Flow problem are shown to be strongly NP-Complete.
Supplementary materials - Size and duration of COVID-19 clusters go along with a high SARS-CoV-2 viral load : a spatio-temporal investigation in Vaud state, Switzerland
Creators: name: Ladoy, Anaïs
name: Opota, Onya
name: Carron, Pierre-Nicolas
name: Guessous, Idris
name: Vuilleumier, Séverine
name: Joost, Stéphane
name: Greub, Gilbert
Publisher: name: Zenodo
Year: 2021

description: Supp. Mat. 1: Distribution of viral loads for individuals within significant clusters. Supp. Mat. 2: Distribution of viral loads for individuals outside significant clusters. Supp. Mat. 3: Mean viral load of the first three cases within significant clusters. Supp. Mat. 4: Maximal viral load of the first three cases within significant clusters. Supp. Mat. 5: Dynamic map of space-time clusters (use firefox for optimal rendering). Supp. Mat. 6: Dynamic map of cluster behavior (use firefox for optimal rendering). Supp. Mat. 7: Distribution of viral loads across age classes.
Noncommutative Electromagnetism As A Large N Gauge Theory
Creators: name: Yang, Hyun Seok
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We map noncommutative (NC) U(1) gauge theory on R^d_C X R^{2n}_{NC} to U(N -> \infty) Yang-Mills theory on R^d_C, where R^d_C is a d-dimensional commutative spacetime while R^{2n}_{NC} is a 2n-dimensional NC space. The resulting U(N) Yang-Mills theory on R^d_C is equivalent to that obtained by the dimensional reduction of (d+2n)-dimensional U(N) Yang-Mills theory onto R^d_C. We show that the gauge-Higgs system (A_μ,Φ^a) in the U(N -> \infty) Yang-Mills theory on R^d_C leads to an emergent geometry in the (d+2n)-dimensional spacetime whose metric was determined by Ward a long time ago. In particular, the 10-dimensional gravity for d=4 and n=3 corresponds to the emergent geometry arising from the 4-dimensional N=4 vector multiplet in the AdS/CFT duality. We further elucidate the emergent gravity by showing that the gauge-Higgs system (A_μ,Φ^a) in half-BPS configurations describes self-dual Einstein gravity.
description: 25 pages; More clarifications, to appear in Eur. Phys. J. C
Synthesis of boron carbide from its elements up to 13 GPa
Creators: name: Chakraborti, Amrita
name: Guignot, Nicolas
name: Vast, Nathalie
name: Godec, Yann Le
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The formation of boron carbide under high pressures and from elemental reactants has been studied and optimum parameters have been determined by varying the (P, T, reactants) conditions. To this end, stoichiometric mixtures of commercial beta rhombohedral boron and amorphous glassy carbon have been subjected to temperatures ranging from 1473 K to 2473 K at pressures of 2 GPa, 5 GPa and 13 GPa. Similar syntheses have been repeated for mixtures of beta boron and graphite, and amorphous boron and amorphous carbon at 2 GPa and 5 GPa. The carbon concentration of boron carbide is shown to be affected by pressure at which it is synthesised from elements, and we propose pressure as a means to control the carbon content. The formation temperature is shown to be affected by the pressure and the choice of the reactants. The effect of temperature cycling on the formation temperature has also been studied. The formation of alpha boron as an intermediate phase is seen at 5 GPa before the formation of boron carbide.
Mesoscopic spin confinement during acoustically induced transport
Creators: name: Stotz, J. A. H.
name: Santos, P. V.
name: Hey, R.
name: Ploog, K. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Long coherence lifetimes of electron spins transported using moving potential dots are shown to result from the mesoscopic confinement of the spin vector. The confinement dimensions required for spin control are governed by the characteristic spin-orbit length of the electron spins, which must be larger than the dimensions of the dot potential. We show that the coherence lifetime of the electron spins is independent of the local carrier densities within each potential dot and that the precession frequency, which is determined by the Dresselhaus contribution to the spin-orbit coupling, can be modified by varying the sample dimensions resulting in predictable changes in the spin-orbit length and, consequently, in the spin coherence lifetime.
description: 10 pages, 2 figures
Marginal Solutions for the Superstring
Creators: name: Erler, Theodore
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a class of analytic solutions of WZW-type open superstring field theory describing marginal deformations of a reference D-brane background. The deformations we consider are generated by on-shell vertex operators with vanishing operator products. The superstring solution exhibits an intriguing duality with the corresponding marginal solution of the {\it bosonic} string. In particular, the superstring problem is ``dual'' to the problem of re-expressing the bosonic marginal solution in pure gauge form. This represents the first nonsingular analytic solution of open superstring field theory.
description: 19 pages; References added; Discussion of a new solution satisfying the reality condition is added in an appendix
Über einen Kommunismus "mit menschlichem Antlitz": F. Furet, Das Ende der Illusionen. Der Kommunismus im 20. Jahrhundert (Rezension)
Creators: name: Grebing, Helga
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Über einen Kommunismus 'mit menschlichem Antlitz': F. Furet, Das Ende der Illusionen. Der Kommunismus im 20. Jahrhundert (Rezension)" of MTS 18 (1997).
description: Moving the Social, Vol 18 (1997): Kolloquium für Hans Mommsen: Freiheit und Sozialismus. Arbeiterbewegung und Menschenrechte in Deutschland im 19./20. Jhd
The Isophotal Structure of Early-Type Galaxies in the SDSS: Dependence on AGN Activity and Environment
Creators: name: Pasquali, Anna
name: Bosch, Frank C. van den
name: Rix, Hans-Walter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the dependence of the isophotal shape of early-type galaxies on their absolute B-band magnitude, their dynamical mass, and their nuclear activity and environment, using an unprecedented large sample of 847 early-type galaxies identified in the SDSS by Hao et al (2006). We find that the fraction of disky galaxies smoothly decreases with increasing luminosity. The large sample allows us to describe these trends accurately with tight linear relations that are statistically robust against the uncertainty in the isophotal shape measurements. There is also a host of significant correlations between the disky fraction and indicators of nuclear activity (both in the optical and in the radio) and environment (soft X-rays, group mass, group hierarchy). Our analysis shows however that these correlations can be accurately matched by assuming that the disky fraction depends only on galaxy luminosity or mass. We therefore conclude that neither the level of activity, nor group mass or group hierarchy help in better predicting the isophotal shape of early-type galaxies.
description: 31 pages, 10 figures, accepted for publication in ApJ
Holstein polaron: the effect of multiple phonon modes
Creators: name: Covaci, Lucian
name: Berciu, Mona
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We generalize the Momentum Average approximations MA$^{(0)}$ and MA$^{(1)}$ to study the effects of coupling to multiple optical phonons on the properties of a Holstein polaron. As for a single phonon mode, these approximations are numerically very efficient. They become exact for very weak or very strong couplings, and are highly accurate in the intermediate regimes, {\em e.g.} the spectral weights obey exactly the first six, respectively eight, sum rules. Our results show that the effect on ground-state properties is cumulative in nature. In particular, if the effective coupling to one mode is much larger than to the others, this mode effectively determines the GS properties. However, even very weak coupling to a second phonon mode has important non-perturbational effects on the higher energy spectrum, in particular on the dispersion and the phonon statistics of the polaron band.
On the Origin of the Dichotomy of Early-Type Galaxies: The Role of Dry Mergers and AGN Feedback
Creators: name: Kang, Xi
name: Bosch, Frank C. van den
name: Pasquali, Anna
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a semi-analytical model for galaxy formation, combined with a large N-body simulation, we investigate the origin of the dichotomy among early-type galaxies. We find that boxy galaxies originate from mergers with a progenitor mass ratio $n < 2$ and with a combined cold gas mass fraction $F_{\rm cold} < 0.1$. Our model accurately reproduces the observed fraction of boxy systems as a function of luminosity and halo mass, for both central galaxies and satellites. After correcting for the stellar mass dependence, the properties of the last major merger of early-type galaxies are independent of their halo mass. This provides theoretical support for the conjecture of Pasquali et al (2007) that the stellar mass of an early-type galaxy is the main parameter that governs its isophotal shape. We argue that the observed dichotomy of early-type galaxies has a natural explanation within hierarchical structure formation, and does not require AGN feedback. Rather, we argue that it owes to the fact that more massive systems (i) have more massive progenitors, (ii) assemble later, and (iii) have a larger fraction of early-type progenitors. Each of these three trends causes the cold gas mass fraction of the progenitors of more massive early-types to be lower, so that their last major merger was dryer. Finally, our model predicts that (i) less than 10 percent of all early-type galaxies form in major mergers that involve two early-type progenitors, (ii) more than 95 percent of all boxy early-type galaxies with $M_* < 2 \times 10^{10} h^{-1} \Msun$ are satellite galaxies, and (iii) about 70 percent of all low mass early-types do not form a supermassive black hole binary at their last major merger. The latter may help to explain why low mass early-types have central cusps, while their massive counterparts have cores.
description: 13 pages, 8 figures, submitted for publication in MNRAS
Entlassungen vor Gericht: Paritätische Ausschüsse und individuelle Arbeitskonflikte in Spanien 1928-1931
Creators: name: Nowak, Karin
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Entlassungen vor Gericht: Paritätische Ausschüsse und individuelle Arbeitskonflikte in Spanien 1928-1931" of MTS 22 (1999).
description: Moving the Social, Vol 22 (1999): Forschungen und Forschungsberichte
Doch nur ein Strohfeuer? Von der „kurzen“ Geschichtsschreibung über die deutschen Gewerkschaften – ein Zwischenruf
Creators: name: Remeke, Stefan
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Doch nur ein Strohfeuer? Von der „kurzen“ Geschichtsschreibung über die deutschen Gewerkschaften – ein Zwischenruf" of MTS 36 (2006).
description: Moving the Social, Vol 36 (2006): Forschungen und Forschungsberichte
Soziale Bewegungen in der Lehre – ein amerikanisches Beispiel
Creators: name: Stadtland, Helke
Publisher: name: Moving the Social
Year: 2015

description: Jeff Goodwin/James Jasper (Hg.), e Social Movements Reader and Concepts, Oxford – GB  2002/Malden – USA 2003, 394 S., gebunden: 65,00 Pfund oder 78,75 $, broschiert: 19, 99 Pfund oder 36,95 $
description: Moving the Social, Vol 36 (2006): Forschungen und Forschungsberichte
Morphologies and Color Gradients of Luminous Evolved Galaxies at z~1.5
Creators: name: McGrath, Elizabeth J.
name: Stockton, Alan
name: Canalizo, Gabriela
name: Iye, Masanori
name: Maihara, Toshinori
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have examined in detail the morphologies of seven z~1.5 passively evolving luminous red galaxies using high resolution HST NICMOS and ACS imaging data. Almost all of these galaxies appear to be relaxed systems, with smooth morphologies at both rest-frame UV and visible wavelengths. Previous results from spectral synthesis modeling favor a single burst of star formation more than 1 Gyr before the observed epoch. The prevalence of old stellar populations, however, does not correlate exclusively with early-type morphologies as it does in the local universe; the light profiles for some of these galaxies appear to be dominated by massive exponential disks. This evidence for massive old disks, along with the apparent uniformity of stellar age across the disk, suggests formation by a mechanism better described as a form of monolithic collapse than as a hierarchical merger. These galaxies could not have undergone a single major merging event since the bulk of their stars were formed, more than 1 Gyr earlier. There is at least one case, however, that appears to be undergoing a "dry merger", which may be an example of the process that converts these unusual galaxies into the familiar spheroids that dominate galaxies comprising old stellar populations at the present epoch.
description: 16 pages, 9 figures (8 in color), accepted for publication in ApJ
กระบวนการพัฒนากองทุนหมู่บ้านเป็นสถาบันการเงินชุมชน
Creators: name: จุรีวัลย์  ภักดีวุฒิ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: กองทุนหมู่บ้าน, สถาบันการเงินชุมชน, การพัฒนา, กระบวนการ

description: 4, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Quantum and Classical Spins on the Spatially Distorted Kagome Lattice: Applications to Volborthite
Creators: name: Wang, Fa
name: Vishwanath, Ashvin
name: Kim, Yong Baek
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In Volborthite, spin-1/2 moments form a distorted Kagomé lattice, of corner sharing isosceles triangles with exchange constants $J$ on two bonds and $J'$ on the third bond. We study the properties of such spin systems, and show that despite the distortion, the lattice retains a great deal of frustration. Although sub-extensive, the classical ground state degeneracy remains very large, growing exponentially with the system perimeter. We consider degeneracy lifting by thermal and quantum fluctuations. To linear (spin wave) order, the degeneracy is found to stay intact. Two complementary approaches are therefore introduced, appropriate to low and high temperatures, which point to the same ordered pattern. In the low temperature limit, an effective chirality Hamiltonian is derived from non-linear spin waves which predicts a transition on increasing $J'/J$, from $\sqrt 3\times \sqrt 3$ type order to a new ferrimagnetic {\em striped chirality} order with a doubled unit cell. This is confirmed by a large-N approximation on the O($n$) model on this lattice. While the saddle point solution produces a line degeneracy, $O(1/n)$ corrections select the non-trivial wavevector of the striped chirality state. The quantum limit of spin 1/2 on this lattice is studied via exact small system diagonalization and compare well with experimental results at intermediate temperatures. We suggest that the very low temperature spin frozen state seen in NMR experiments may be related to the disconnected nature of classical ground states on this lattice, which leads to a prediction for NMR line shapes.
description: revised, section V about exact diagonalization is extensively rewritten, 17 pages, 11 figures, RevTex 4, accepted by Phys. Rev. B
การพัฒนาระบบสารสนเทศงานวิชาการด้านการพัฒนาหลักสูตรสถานศึกษา และการวัดผล ประเมินผล โรงเรียนบ้านเหม้าวิทยา อำเภอสุวรรณภูมิ จังหวัดร้อยเอ็ด
Creators: name: ธนกร  อารีเอื้อ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การพัฒนาระบบสารสนเทศงานวิชาการ

description: 4, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Two-proton radioactivity and three-body decay. IV. Connection to quasiclassical formulation
Creators: name: Grigorenko, L. V.
name: Zhukov, M. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive quasiclassical expressions for the three-body decay width and define the ``preexponential'' coefficients for them. The derivation is based on the integral formulae for the three-body width obtained in the semianalytical approach with simplified three-body Hamiltonian [L.V. Grigorenko and M.V.\ Zhukov, arXiv:0704.0920v1]. The model is applied to the decays of the first excited $3/2^{-}$ state of $^{17}$Ne and $3/2^{-}$ ground state of $^{45}$Fe. Various qualitative aspects of the model and relations with the other simplified approaches to the three-body decays are discussed.
description: 9 Pages, 2 figures
Percolation Modeling of Conductance of Self-Healing Composites
Creators: name: Dementsov, Alexander
name: Privman, Vladimir
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the conductance of self-healing materials as a measure of the material integrity in the regime of the onset of the initial fatigue. Continuum effective-field modeling and lattice numerical simulations are reported. Our results illustrate the general features of the self-healing process: The onset of the material fatigue is delayed, by developing a plateau-like time-dependence of the material quality. We demonstrate that in this low-damage regime, the changes in the conductance and similar transport/response properties of the material can be used as measures of the material quality degradation.
description: 13 pages, PDF
Analytic solutions for marginal deformations in open superstring field theory
Creators: name: Okawa, Yuji
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the calculable analytic approach to marginal deformations recently developed in open bosonic string field theory to open superstring field theory formulated by Berkovits. We construct analytic solutions to all orders in the deformation parameter when operator products made of the marginal operator and the associated superconformal primary field are regular.
description: 17 pages, no figures; v2: the discussion on the reality condition corrected and expanded, a note on solutions satisfying the reality condition added; v3: a typo in (6.3) corrected, a reference added, minor changes
Softening of the insulating phase near Tc for the photo-induced insulator-to-metal phase transition in vanadium dioxide
Creators: name: Hilton, D. J.
name: Prasankumar, R. P.
name: Fourmaux, S.
name: Cavalleri, A.
name: Brassard, D.
name: Khakani, M. A. El
name: Kieffer, J. C.
name: Taylor, A. J.
name: Averitt, R. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use optical-pump terahertz-probe spectroscopy to investigate the near-threshold behavior of the photoinduced insulator-to-metal (IM) transition in vanadium dioxide thin films. Upon approaching Tc a reduction in the fluence required to drive the IM transition is observed, consistent with a softening of the insulating state due to an increasing metallic volume fraction (below the percolation limit). This phase coexistence facilitates the growth of a homogeneous metallic conducting phase following superheating via photoexcitation. A simple dynamic model using Bruggeman effective medium theory describes the observed initial condition sensitivity.
description: accepted for publication in Physical Review Letters
Plasmonic enhancement of molecular hydrogen dissociation on metallic magnesium nanoclusters
Creators: name: Douglas-Gallardo, Oscar A.
name: Box, Connor L.
name: Maurer, Reinhard J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Light-driven plasmonic enhancement of chemical reactions on metal catalysts is a promising strategy to achieve highly selective and efficient chemical transformations. The study of plasmonic catalyst materials has traditionally focused on late transition metals such as Au, Ag, and Cu. In recent years, there has been increasing interest in the plasmonic properties of a set of earth-abundant elements such as Mg, which exhibit interesting hydrogenation chemistry with potential applications in hydrogen storage. This work explores the optical, electronic, and catalytic properties of a set of metallic Mg nanoclusters with up to 2057 atoms using time-dependent density functional tight-binding and density functional theory calculations. Our results show that Mg nanoclusters are able to produce highly energetic hot electrons with energies of up to 4 eV. By electronic structure analysis, we find that these hot electrons energetically align with electronic states of physisorbed molecular hydrogen, occupation of which by hot electrons can promote the hydrogen dissociation reaction. We also find that the reverse reaction, hydrogen evolution on metallic Mg, can potentially be promoted by hot electrons, but following a different mechanism. Thus, from a theoretical perspective, Mg nanoclusters display very promising behaviour for their use in light promoted storage and release of hydrogen.
A comparison of various ore reserve estimates at the Buckhorn Mine, Eureka County, Nevada
Creators: name: Tilkov, Mit D.
Publisher: name: University of British Columbia
Year: 2010

description: An abundance of computerized exploration drillhole and production blasthole data from Cominco Resources' Buckhorn Mine in Nevada provides the opportunity for a comprehensive study to. evaluate various grade'estimation techniques. The Buckhorn ore-body is a bulk mineable, volcanic hosted, epithermal gold-silver deposit that formed in a Miocene hot springs system. Forty separate block models, estimated from exploration drillhole data, were compared with 12 block models derived from blasthole data. The effect of choosing a smaller mining size block over the larger block size that might be dictated by drillhole spacing was examined in some cases. Some block models and datasets had geological constraints imposed on them while others did not. For each of four major block model configurations various polygonal based, inverse distance and geostatistical estimates were calculated and compared to each other and to known production data. During the course of this study, many of the common statistical and geostatistical techniques for analysis of data were employed and in some cases, the methods themselves were questioned. Results showed that estimating small, mining size blocks is important regardless of the grade interpolation method used because the best of these block models, although less accurate predictors of actual grade at any given location, tended to reflect the overall true grade distribution of the ore blocks which were eventually mined. Because all ore estimates are calculated from nearest exploration composites, some of the small block size models can be seen as fairly accurate, geometrically correct approximations (one possible realization) of the true, unknown shape of the orebody. It was found that, in addition to separating oxide from sulfide exploration composites, the imposition of a second type of geological boundary, an ore zone outline within which ore was likely to occur and outside of which there was little basis for predicting the existence of recoverable reserves, measurably improved the estimates of tonnage and grade. And finally, the method of calculating conditional probability proposed by G.F. Raymond (Raymond 1979, 1982, and 1984), and as further refined here, was found to be the most accurate, stable, and generally useful of the various methods used to generate block models and estimates of ore reserves at the Buckhorn Mine.
การตระหนักรู้ทางสังคมของนิสิตปริญญาตรีสาขาวิชาจิตวิทยามหาวิทยาลัยมหาสารคาม
Creators: name: ลักขณา สริวัฒน์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การตระหนักรู้ทางสังคม, ด้านความรู้สึกไวต่อสังคม, ด้านความเข้าใจสังคม, ด้านการสื่อสารทางสังคม, ด้านการแก้ปัญหาทางสังคม, ด้านการมีส่วนร่วมในสังคม, นิสิตปริญญาตรีสาขาวิชาจิตวิทยา

description: 4, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Invariants of Triangular Lie Algebras
Creators: name: Boyko, Vyacheslav
name: Patera, Jiri
name: Popovych, Roman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 17B05; 17B10; 17B30; 22E70; 58D19; 81R05

description: Triangular Lie algebras are the Lie algebras which can be faithfully represented by triangular matrices of any finite size over the real/complex number field. In the paper invariants ('generalized Casimir operators') are found for three classes of Lie algebras, namely those which are either strictly or non-strictly triangular, and for so-called special upper triangular Lie algebras. Algebraic algorithm of [J. Phys. A: Math. Gen., 2006, V.39, 5749; math-ph/0602046], developed further in [J. Phys. A: Math. Theor., 2007, V.40, 113; math-ph/0606045], is used to determine the invariants. A conjecture of [J. Phys. A: Math. Gen., 2001, V.34, 9085], concerning the number of independent invariants and their form, is corroborated.
description: LaTeX2e, 16 pages; misprints are corrected, some proofs are extended
การเปรียบเทียบคุณลักษณะหลักฐานการสอบบัญชีที่ดีและคุณภาพการสอบบัญชีของผู้สอบบัญชีรับอนุญาตในประเทศไทย
Creators: name: ทิพวรรณ์ ศิริมาตร
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: คุณลักษณะหลักฐานการสอบบัญชีที่ดี, คุณภาพการสอบบัญชี, ผู้สอบบัญชีรับอนุญาตในประเทศไทย

description: 4, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
An algebraic interpretation of the intertwining operators associated with the discrete Fourier transform
Creators: name: Atakishiyeva, Mesuma
name: Atakishiyev, Natig
name: Zhedanov, Alexei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 42A38

description: We show that intertwining operators for the discrete Fourier transform form a cubic algebra $\mathcal{C}_q$ with $q$ a root of unity. This algebra is intimately related to the two other well-known realizations of the cubic algebra: the Askey-Wilson algebra and the Askey-Wilson-Heun algebra.
description: 9 pages, 22 references