cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Complexity of Two Dimensional Commuting Local Hamiltonians
Creators: name: Aharonov, Dorit
name: Kenneth, Oded
name: Vigdorovich, Itamar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The complexity of the commuting local Hamiltonians (CLH) problem still remains a mystery after two decades of research of quantum Hamiltonian complexity; it is only known to be contained in NP for few low parameters. Of particular interest is the tightly related question of understanding whether groundstates of CLHs can be generated by efficient quantum circuits. The two problems touch upon conceptual, physical and computational questions, including the centrality of non-commutation in quantum mechanics, quantum PCP and the area law. It is natural to try to address first the more physical case of CLHs embedded on a 2D lattice but this problem too remained open, apart from some very specific cases. Here we consider a wide class of two dimensional CLH instances; these are $k$-local CLHs, for any constant $k$; they are defined on qubits set on the edges of any surface complex, where we require that this surface complex is not too far from being "Euclidean". Each vertex and each face can be associated with an arbitrary term (as long as the terms commute). We show that this class is in NP, and moreover that the groundstates have an efficient quantum circuit that prepares them. This result subsumes that of Schuch [2011] which regarded the special case of $4$-local Hamiltonians on a grid with qubits, and by that it removes the mysterious feature of Schuch's proof which showed containment in NP without providing a quantum circuit for the groundstate and considerably generalizes it. We believe this work and the tools we develop make a significant step towards showing that 2D CLHs are in NP.
description: 36 pages, 8 figures
Exponential convergence of sum-of-squares hierarchies for trigonometric polynomials
Creators: name: Bach, Francis
name: Rudi, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider the unconstrained optimization of multivariate trigonometric polynomials by the sum-of-squares hierarchy of lower bounds. We first show a convergence rate of $O(1/s^2)$ for the relaxation with degree $s$ without any assumption on the trigonometric polynomial to minimize. Second, when the polynomial has a finite number of global minimizers with invertible Hessians at these minimizers, we show an exponential convergence rate with explicit constants. Our results also apply to minimizing regular multivariate polynomials on the hypercube.
title: Radiosensitivierung HPV-positiver HNSCC Zellen durch alleinige und kombinierte Inhibition von Chk1 und Wee1
Creators: name: Rieckmann, Thorsten
name: Busch, Chia-Jung
name: Rothkamm, Kai
name: Knecht, Rainald
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Patienten mit HPV-positiven HNSCC zeigen erheblich höhere Überlebensraten. Bereits auf dem zellulären Level besteht dabei eine erhöhte Strahlenempfindlichkeit, assoziiert mit einem Defekt in der Reparatur strahleninduzierter DNA-Doppelstrangbrüche (DSB) und einem[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
title: Consortium for Brachytherapy data Analysis: erstmalige Anwendung eines internationalen standardisierten Datenerhebungssystems bei Kopf-Hals-Tumoren
Creators: name: Ritter, Matthias
name: Soror, Tamer
name: Tagliaferri, Luca
name: Kovács, György
name: Wollenberg, Barbara
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Brachytherapie zur Behandlung von Kopf-Hals-Tumoren (HNSCC) wird überwiegend in spezialisierten Tumorzentren durchgeführt. Therapieerfolge konnten bisher nur an kleinen, heterogenen Patientenkollektiven belegt werden. Hohe Fallzahlen würden personal- und kostenintensive Multi-Center-Studien[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Sub-Natural Linewidth Single Photons from a Quantum Dot
Creators: name: Matthiesen, Clemens
name: Vamivakas, Anthony Nickolas
name: Atature, Mete
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The observation of quantum dot resonance fluorescence enabled a new solid-state approach to generating single photons with a bandwidth almost as narrow as the natural linewidth of a quantum dot transition. Here, we operate in the Heitler regime of resonance fluorescence to generate sub-natural linewidth and high-coherence quantum light from a single quantum dot. The measured single-photon bandwidth exhibits a 30-fold reduction with respect to the radiative linewidth of the QD transition and the single photons exhibit coherence properties inherited from the excitation laser. In contrast, intensity-correlation measurements reveal that this photon source maintains a high degree of antibunching behaviour on the order of the transition lifetime with vanishing two-photon scattering probability. This light source will find immediate applications in quantum cryptography, measurement-based quantum computing and, in particular, deterministic generation of high-fidelity distributed entanglement among independent and even disparate quantum systems.
title: Die Bedeutung der Bruton’s Tyrosin Kinase (BTK) für TLR abhängige Signalkaskaden
Creators: name: Rudolf, Philipp
name: Pries, Ralph
name: Wollenberg, Barbara
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Toll like Rezeptoren (TLRs) sind zentrale Regulatoren verschiedener Immunfunktionen, wobei jedoch im Tumor Milieu abweichende Funktionen hinsichtlich der Regulation von Entzündungsprozessen und der Tumor Progression vermutet werden. In diesem Zusammenhang wurde die Bruton’s [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
From Minkowski to de Sitter Vacua with Various Geometries
Creators: name: Pallis, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: New no-scale supergravity models with F-term SUSY breaking are introduced, adopting Kaehler potentials parameterizing flat or curved (compact or non-compact) Kaehler manifolds. We systematically derive the form of the superpotentials leading to Minkowski vacua. Combining two types of these superpotentials we can also determine de Sitter or anti-de Sitter vacua. The construction can be easily extended to multi-modular settings of mixed geometry. The corresponding soft SUSY-breaking parameters are also derived.
description: Improved version accepted for publication in EPJC
Towards chemical accuracy using the Jastrow correlated antisymmetrized geminal power ansatz
Creators: name: Raghav, Abhishek
name: Maezono, Ryo
name: Hongo, Kenta
name: Sorella, Sandro
name: Nakano, Kousuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Herein, we report accurate atomization energy calculations for 55 molecules in the Gaussian-2 (G2) set using lattice regularized diffusion Monte Carlo (LRDMC). We compare the Jastrow-Slater determinant ansatz with a more flexible JsAGPs (Jastrow correlated antisymmetrized geminal power with singlet correlation) ansatz. AGPs is built from pairing functions, which explicitly include pairwise correlations among electrons and hence, this ansatz is expected to be more efficient in recovering the correlation energy. The AGPs wave functions are first optimized at the variational Monte Carlo (VMC) level, which includes both the Jastrow factor and the nodal surface optimization. This is followed by the LRDMC projection of the ansatz. Remarkably, for many molecules, the LRDMC atomization energies obtained using the JsAGPs ansatz reach chemical accuracy ($\sim$1 kcal/mol) and for most other molecules, the atomization energies are accurate within $\sim$5 kcal/mol. We obtained a mean absolute deviation of 1.6 kcal/mol with JsAGPs and 3.2 kcal/mol with JDFT (Jastrow factor + Slater determinant with DFT orbitals) ansatz. This work shows the effectiveness of the flexible AGPs ansatz for atomization energy calculations and electronic structure simulations in general.
description: 15 pages, 4 figures, JCTC accepted version after peer-review
Assessing the accuracy of quantum Monte Carlo and density functional theory for energetics of small water clusters
Creators: name: Gillan, M. J.
name: Manby, F. R.
name: Towler, M. D.
name: Alfè, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a detailed study of the energetics of water clusters (H$_2$O)$_n$ with $n \le 6$, comparing diffusion Monte Carlo (DMC) and approximate density functional theory (DFT) with well converged coupled-cluster benchmarks. We use the many-body decomposition of the total energy to classify the errors of DMC and DFT into 1-body, 2-body and beyond-2-body components. Using both equilibrium cluster configurations and thermal ensembles of configurations, we find DMC to be uniformly much more accurate than DFT, partly because some of the approximate functionals give poor 1-body distortion energies. Even when these are corrected, DFT remains considerably less accurate than DMC. When both 1- and 2-body errors of DFT are corrected, some functionals compete in accuracy with DMC; however, other functionals remain worse, showing that they suffer from significant beyond-2-body errors. Combining the evidence presented here with the recently demonstrated high accuracy of DMC for ice structures, we suggest how DMC can now be used to provide benchmarks for larger clusters and for bulk liquid water.
description: 34 pages, 6 figures
title: Meningeome der Nase und Nasennebenhöhlen
Creators: name: Saadoun, Rakan
name: Wenzel, Angela
name: Hörmann, Karl
name: Sommer, J. Ulrich
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Extrakranielle Meningeome der Nase und Nasennebenhöhlen sind sehr selten. Auf Grund von häufigen Fehl- und Spätdiagnosen liegt die Prognose der Tumoren in realitas häufig hinter der zu erwartenden. Zusätzlich zur typischen Symptomatik intrakranieller Raumforderungen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Twitter Spam and False Accounts Prevalence, Detection and Characterization: A Survey
Creators: name: Ferrara, Emilio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The issue of quantifying and characterizing various forms of social media manipulation and abuse has been at the forefront of the computational social science research community for over a decade. In this paper, I provide a (non-comprehensive) survey of research efforts aimed at estimating the prevalence of spam and false accounts on Twitter, as well as characterizing their use, activity, and behavior. I propose a taxonomy of spam and false accounts, enumerating known techniques used to create and detect them. Then, I summarize studies estimating the prevalence of spam and false accounts on Twitter. Finally, I report on research that illustrates how spam and false accounts are used for scams and frauds, stock market manipulation, political disinformation and deception, conspiracy amplification, coordinated influence, public health misinformation campaigns, radical propaganda and recruitment, and more. I will conclude with a set of recommendations aimed at charting the path forward to combat these problems.
description: Published on First Monday, 27(12), 2022 https://firstmonday.org/ojs/index.php/fm/article/view/12872/10749
Alter Bergbau bei Bernkastel
Creators: name: Kentenich, Gottfried
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: [nicht vorhanden]
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 1 Nr. 2 (1926): Trierer Zeitschrift : Vierteljahreshefte für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Topological superfluid of spinless Fermi gases in p-band honeycomb optical lattices with on-site rotation
Creators: name: Huang, Beibing
name: yang, xiaoseng
name: wan, shaolong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this paper, we put forward to another route realizing topological superfluid (TS). In contrast to conventional method, spin-orbit coupling and external magnetic field are not requisite. Introducing an experimentally feasible technique called on-site rotation (OSR) into p-band honeycomb optical lattices for spinless Fermi gases and considering CDW and pairing on the same footing, we investigate the effects of OSR on superfluidity. The results suggest that when OSR is beyond a critical value, where CDW vanishes, the system transits from a normal superfluid (NS) with zero TKNN number to TS labeled by a non-zero TKNN number. In addition, phase transitions between different TS are also possible.
title: Hypopharyngeal tumors-SCC - case presentation
Creators: name: Sala, Dana Viviana
name: Valenas, Oana
name: Venter, Ciprian
name: Domuta, Maria
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hypopharyngeal carcinoma is relatively uncommon representing only 10% of all proximal aerodigestive track malignancies.       Unfortunately hypopharyngeal tumours produce few symptoms until they are advanced.       Treatment of hypopharyngeal squamous cell carcinoma usually involves surgical resection[for full text, please go to the a.m. URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Eric Voegelin's works on race: a methodological analysis
Creators: name: Heilke, Thomas Wolfgang, 1960-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: B 3354 V884 H43 1986
subject: Voegelin, Eric, 1901-
subject: Racism
subject: Ideology
subject: Totalitarianism
subject: Germany - History - 1933-1945 - Psychological aspects

description: Bibliography: p. 230-235.
description: Ideas are a constituent part of the substance of any community. The quality of an idea is reflected in the quality of the community that it helps constitute. Fifty years ago, Eric Voegelin discussed the origins, nature, and content of the race-ideas in their role as formative intellectual and emotional foundations of Nazi Germany. Because they have not been translated, and because the editions are rare, his major works on the topic, Rasse und Staat and Die Rassenidee in der Geistesgeschichte von Ray bis Carus have remained relatively inaccessible, and therefore, neglected. Eric Voegelin's Works on Race does four things. First, it presents the basic thought of Voegelin's works to the English reader. Second, for those familiar with his post-war writings, it offers a background to a clearer understanding of his mature work. Third, it presents a series of analytical tools, extracted from Voegelin's early thought, that aid in understanding political phenomena in general, and the ideological claims of racism in particular. Fourth, it argues that by understanding the nature of the ideas that inform the intellectual, emotional, and spiritual life of a group of people, we arrive at a more comprehensive understanding of the nature of the group and its members. Specifically, comprehending the logic of the race- ideas is useful for understanding their role in the totalitarian regimes of Nazi Germany, and for understanding the nature of totalitarianism itself.
Robustness of nonclassical superpositions states against decoherence
Creators: name: El-Orany, Faisal A. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We make a comparative study of quadrature squeezing, photon-number distribution and Wigner function in a decayed quantum system. Specifically, for a field mode prepared initially in cat states interacting with a zero-temperature environment, we show that the rate of reduction of the nonclassical effects in this system is proportional to the occurrence of the decoherence process.
description: 11 pages, 4 figures
Generalized eigenfunctions and scattering matrices for position-dependent quantum walks
Creators: name: Morioka, Hisashi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the spectral analysis and the scattering theory for time evolution operators of position-dependent quantum walks. Our main purpose of this paper is construction of generalized eigenfunctions of the time evolution operator. Roughly speaking, the generalized eigenfunctions are not square summable but belong to $\ell^{\infty}$-space on ${\bf Z}$. Moreover, we derive a characterization of the set of generalized eigenfunctions in view of the time-harmonic scattering theory. Thus we show that the S-matrix associated with the quantum walk appears in the singularity expansion of generalized eigenfunctions.
Cardiovascular response patterns and speech: a study of air traffic controllers
Creators: name: Henderson, Peter R.
Publisher: name: University of Calgary
Year: 1984
Subjects: subject: RC 669 H44 1985
subject: Cardiovascular system - Diseases
subject: Voice - Psychological - Stress analysis
subject: Stress (Physiology)
subject: Air traffic controllers

description: Bibliography: p. 144-166.
Ritual Grain Vessel (gui)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2017
Subjects: Dragons

description: This bronze ceremonial vessel, with its smooth green patina, is a type (gui) that was used as a container for food, probably for grain. The body is round, with two dragon head handles and a band of conventional dragon motifs on the upper part. The vessel is raised on three legs, which are given the form of human figures.
Antike Büstengefäßchen aus Metall : [Vortragsbericht]
Creators: name: Goessler, Peter
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Von der Tagung des Südwestdeutschen Altertumsverbandes
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 1 Nr. 3 (1926): Trierer Zeitschrift : Vierteljahreshefte für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Demulsification of heavy oil emulsions in a thin film evaporator
Creators: name: Henley, Robert Dean, 1961-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: TP 156 S45 H445 1986
subject: Separation (Technology)
subject: Emulsions
subject: Secondary recovery of oil

description: Bibliography: p. 96-98.
Friedrich Spee und sein Kampf gegen die Hexenverfolgung
Creators: name: Kentenich, Gottfried
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: [nicht vorhanden]
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 1 Nr. 3 (1926): Trierer Zeitschrift : Vierteljahreshefte für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
title: FANCB Varianten als prädisponierender Faktor für Kopf-Hals-Karzinome
Creators: name: Scheckenbach, Kathrin
name: Glaas, Marcel
name: Wiek, Constanze
name: Wolter, Linda
name: Röllecke, Katharina
name: Wagenmann, Martin
name: Schipper, Jörg
name: Plettenberg, Christian
name: Hanenberg, Helmut
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Fanconi-Anämie (FA) ist eine erbliche Erkrankung, die mit der Entwicklung von Kopf-Hals-Karzinomen (HNSCC), einer erhöhten genomischen Instabilität bei defekter DNA-Reparatur und einer erhöhten Sensitivität für kreuzvernetzende Chemotherapeutika (KVC) einhergeht.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
General Relativistic Modeling of Magnetized Jets from Accreting Black Holes
Creators: name: Tchekhovskoy, Alexander
name: McKinney, Jonathan C.
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent advances in general relativistic magnetohydrodynamic modeling of jets offer unprecedented insights into the inner workings of accreting black holes that power the jets in active galactic nuclei (AGN) and other accretion systems. I will present the results of recent studies that determine spin-dependence of jet power and discuss the implications for the AGN radio loud/quiet dichotomy and recent observations of high jet power in a number of AGN.
description: 8 pages, 4 figures. For an associated movie, see http://youtu.be/nRGCNaWST5Q . To appear in the proceedings of the conference "The Central Kiloparsec in Galactic Nuclei: Astronomy at High Angular Resolution 2011", open access Journal of Physics: Conference Series (JPCS), published by IOP Publishing
Trierer numismatische Kuriosa
Creators: name: Diepenbach, Wilhelm
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: [nicht vorhanden]
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 1 Nr. 3 (1926): Trierer Zeitschrift : Vierteljahreshefte für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Limit distributions of expanding translates of shrinking submanifolds and non-improvability of Dirichlet's approximation theorem
Creators: name: Shah, Nimish A.
name: Yang, Pengyu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 37A17, 22E46, Secondary 11J13

description: On the space $\mathcal{L}_{n+1}$ of unimodular lattices in $\mathbb{R}^{n+1}$, we consider the standard action of $a(t)=\mathrm{diag}(t^n,t^{-1},\ldots,t^{-1})\in \mathrm{SL}(n+1,\mathbb{R})$ for $t>1$. Let $M$ be a nondegenerate submanifold of an expanding horospherical leaf in $\mathcal{L}_{n+1}$. We prove that for all $x\in M\setminus E$ and $t>1$, if $μ_{x,t}$ denotes the normalized Lebesgue measure on the ball of radius $t^{-1}$ around $x$ in $M$, then the translated measure $a(t)μ_{x,t}$ get equidistributed $\mathcal{L}_{n+1}$ as $t\to\infty$, where $E$ is a union of countably many lower dimensional submanifolds of $M$. In particular, if $μ$ is an absolutely continuous probability measure on $M$, then $a(t)μ$ gets equidistributed in $\mathcal{L}_{n+1}$ as $t\to\infty$. This result implies the non-improvability of Dirichlet's Diophantine approximation theorem for almost every point on a $C^{n+1}$-submanifold of $\mathbb{R}^n$ satisfying a non-degeneracy condition, answering a question arising from the work of Davenport and Schmidt (1969).
description: 22 pages, nondegeneracy definitions have improved nomenclature
Energy nonconservation and relativistic trajectories: Unimodular gravity and beyond
Creators: name: Bonder, Y.
name: Herrera, J. E.
name: Rubiol, A. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Energy conservation has the status of a fundamental physical principle. However, measurements in quantum mechanics do not comply with energy conservation. Therefore, it is expected that a more fundamental theory of gravity -- one that is less incompatible with quantum mechanics -- should admit energy nonconservations. This paper begins by identifying the conditions for a theory to have an energy-momentum tensor that is not conserved. Then, the trajectory equation for pointlike particles that lose energy is derived, showing that energy nonconservation produces a particular acceleration. As an example, the unimodular theory of gravity is studied. Interestingly, in spherical symmetry, given that there is a generalized Birkhoff theorem and that the energy-momentum tensor divergence is a closed form, the trajectories of test particles that lose energy can be found using well known methods. Finally, limits on the energy nonconservation parameters are set using Solar system observations.
description: 13 pages. Accepted in Phys. Rev. D
K-theory and formality
Creators: name: Carlson, Jeffrey D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19L47, 55N91, 57T15, 55T99

description: We compute the equivariant K-theory with integer coefficients of an equivariantly formal isotropy action, subject to natural hypotheses which cover the three major classes of known examples. The proof proceeds by constructing a map of spectral sequences from Hodgkin's Künneth spectral sequence in equivariant K-theory to that in Borel cohomology. A new characterization of equivariant formality appears as a consequence of this construction, and we are now able to show that weak equivariant formality in the sense of Harada--Landweber is equivalent with integer coefficients to surjectivity of the forgetful map under a standard hypothesis. The main structure theorem is formally similar to that for Borel equivariant cohomology, which appears in the author's dissertation/dormant book project and whose proof is finally made accessible in an appendix. The most generally applicable corollary of the main theorem for rational coefficients depends on a strengthening of the characterization of equivariant formality due to Shiga and Takahashi, which appears as a second appendix.
description: Substantially updated to match published version
The Physiological reponses of the stenohaline white sucker, Catostomus commersoni, to low environmental pH, particularly in natural soft water
Creators: name: Hobe, Helve
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: QL 638 C27 H62 1985
subject: Catostomus commersoni
subject: Fishes - Physiology

description: Bibliography: p. 297-319.
Baryon and meson masses in the Nambu--Jona-Lasinio model: A Bayesian approach
Creators: name: Pfaff, Antoine
name: Hansen, Hubert
name: Torres-Rincon, Juan M.
name: Aichelin, Joerg
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the capabilities of the Nambu--Jona-Lasinio model to describe and reproduce fundamental vacuum properties of Quantum Chromodynamics, notably the hadronic spectrum. Mesons are described as quark-antiquark bound states at the level of the random phase approximation of the Bethe-Salpeter equation, while baryons are characterized as quark-diquark bound states within the static approximation of the Faddeev equation. Within a Bayesian framework, we constrain the model by phenomenologically known quantities and study the implications on its parameters and predictions in vacuum, as well as the correlations between the two. We find that within our framework, the vacuum masses of mesons and baryons can be reasonably well reproduced. Scalar diquarks need to be significantly bound in order to correctly reproduce the masses of the baryon octet, therefore enforcing values of the scalar diquark coupling larger than what is suggested by the canonical Fierz values. These findings could have important implications on the phenomenology of strongly-interacting matter at high temperature and density as well as of compact star physics.
description: 18 pages, 8 figures
Thin Film Rupture from the Atomic Scale
Creators: name: Rahman, Muhammad Rizwanur
name: Shen, Li
name: Ewen, James P.
name: Collard, Benjamin
name: Heyes, D. M.
name: Dini, Daniele
name: Smith, E. R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The retraction of thin films, as described by the Taylor-Culick (TC) theory, is subject to widespread debate, particularly for films at the nanoscale. We use non-equilibrium molecular dynamics simulations to explore the validity of the assumptions used in continuum models, by tracking the evolution of holes in a film. By deriving a new mathematical form for the surface shape and considering a locally varying surface tension at the front of the retracting film, we reconcile the original theory with our simulation data to recover a corrected TC speed valid at the nanoscale.
title: Einfluss des Wundsekrets auf Kopf-Hals-Plattenepithelkarzinomzelllinien in vitro
Creators: name: Scherzad, Agmal
name: Hackenberg, Stephan
name: Hagen, Rudolf
name: Kleinsasser, Norbert
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Wundheilung nach einer chirurgischen Tumorresektion erfolgt über ein komplexes Zusammenspiel verschiedener Zelltypen, der extrazellulären Matrix sowie löslicher Mediatoren.  Welche Einflüsse diese Faktoren auf Tumorzellen haben, ist bis jetzt nicht vollständig[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Non-scattering energies for acoustic-type equations on manifolds with a single flat end
Creators: name: Morioka, Hisashi
name: Shoji, Naotaka
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35P20, 47A40

description: In this paper, we consider the scattering theory for acoustic-type equations on non-compact manifolds with a single flat end. Our main purpose is to show an existence result of non-scattering energies. Precisely, we show a Weyl-type lower bound for the number of non-scattering energies. Usually a scattered wave occurs for every incident wave by the inhomogeneity of the media. However, there may exist suitable wavenumbers and patterns of incident waves such that the corresponding scattered wave vanishes. We call (the square of) this wavenumber a non-scattering energy in this paper. The problem of non-scattering energies can be reduced to a well-known interior transmission eigenvalues problem.
On $L^r$ hypoellipticity of solutions with compact support of the Cauchy-Riemann equation
Creators: name: Amar, Eric
name: Mongodi, Samuele
Publisher: name: arXiv
Year: 2011
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In one complex variable, the existence of a compactly supported solution to the Cauchy-Riemann equation is related to the vanishing of certain integrals of the data; trying to generalize this approach, we find an explicit construction, via convolution, for a compactly supported solution in $\mathbb{C}^n$, which allows to estimate the $L^p$ norm of the solution. We also investigate the possible generalizations of this method to domains of the form $P\setminus Z$, where $P$ is a polydisc and $Z$ is the zero locus of some holomorphic function.
title: New approach for the assessment of pulmonary function after total laryngectomy: a prospective study of patients with COPD
Creators: name: Schönwald, Charlotte
name: Beutner, Dirk
name: Pfister, Roman
name: Michels, Guido
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Introduction: Until now there exists no standardized extratracheal devices to conduct the lung function after total laryngectomy. For this reason many pneumologists improvise with various, complex self-made systems.     Methods: The pulmonary function of ten patients with chronic obstructive pulmonary[for full text, please go to the a.m. URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Coarse density of subsets of $M_g$
Creators: name: Dozier, Benjamin
name: Sapir, Jenya
Publisher: name: arXiv
Year: 2019
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Let $\mathcal{M}_g$ be the moduli space of genus $g$ Riemann surfaces. We show that an algebraic subvariety of $\mathcal{M}_g$ is coarsely dense with respect to the Teichmüller metric (or Thurston metric) if and only if it is all of $\mathcal{M}_g$. We apply this to projections of $\operatorname{GL}_2(\mathbb{R})$-orbit closures in the space of abelian differentials. Moreover, we determine which strata of abelian differentials have coarsely dense projection to $\mathcal{M}_g$.
description: 12 pages, 1 figure
Hydrodynamic flow associated with Leduc reefs
Creators: name: Hugo, Ken J. (Ken John), 1959-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: TC 176 H83 1986
subject: Groundwater flow - Alberta - Leduc region
subject: Water, Underground - Alberta - Leduc region
subject: Geology, Stratigraphic - Paleozoic

description: Bibliography: p. 134-140.
Global dynamics of oscillator populations under common noise
Creators: name: Braun, W.
name: Pikovsky, A.
name: Matias, M. A.
name: Colet, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Common noise acting on a population of identical oscillators can synchronize them. We develop a description of this process which is not limited to the states close to synchrony, but provides a global picture of the evolution of the ensembles. The theory is based on the Watanabe-Strogatz transformation, allowing us to obtain closed stochastic equations for the global variables. We show that on the initial stage, the order parameter grows linearly in time, while on the late stages the convergence to synchrony is exponentially fast. Furthermore, we extend the theory to nonidentical ensembles with the Lorentzian distribution of natural frequencies and determine the stationary values of the order parameter in dependence on driving noise and mismatch.
description: 6 Pages
M.F.A. graduating paper: an accompaniment to the thesis exhibition
Creators: name: Hume, Vern, 1956-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: NX 600 V5 H84 1986
subject: Video art
subject: Television
subject: Hume, Vern, 1956-

description: Bibliography: p. 55-58.
A Critical analysis of theory in the study of educational administration: a paradigmatic perspective
Creators: name: Innes-Brown, Malcolm (Malcolm Alan), 1946-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: LB 2806 I55 1986
subject: School management and organization - Philosophy
subject: School management and organization - History
subject: Education - Administration

description: Bibliography: p. 282-308.
title: FGFR1 - ein neues Target für eine personalisierte Tumortherapie im HNO-Bereich?
Creators: name: Schröck, Andreas
name: Göke, Friederike
name: Franzen, Alina
name: Heasley, Lynn
name: Perner, Sven
name: Bootz, Friedrich
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Ca. 15% aller HNSCC weisen eine FGFR1 Genamplifikation auf. In klinischen Studien werden bereits HNSCC Patienten mit FGFR1 amplifizierten Tumoren mit spezifischen FGFR-Inhibitoren therapiert. Bislang ist jedoch unklar ob der alleinige  Nachweis einer Amplifikation als prediktiver Marker[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Elastocapillary instability under partial wetting conditions: bending versus buckling
Creators: name: Andreotti, Bruno
name: Marchand, Antonin
name: Das, Siddhartha
name: Snoeijer, Jacco H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The elastocapillary instability of a flexible plate plunged in a liquid bath is analysed theoretically. We show that the plate can bend due to two separate destabilizing mechanisms, when the liquid is partially wetting the solid. For contact angles $θ_e > π/2$, the capillary forces acting tangential to the surface are compressing the plate and can induce a classical buckling instability. However, a second mechanism appears due to capillary forces normal to surface. These induce a destabilizing torque that tends to bend the plate for any value of the contact angle $θ_e > 0$. We denote these mechanisms as "buckling" and "bending" respectively and identify the two corresponding dimensionless parameters that govern the elastocapillary stability. The onset of instability is determined analytically and the different bifurcation scenarios are worked out for experimentally relevant conditions.
description: 12 pages, 13 figures
Anomalous Optoelectronic Properties of Chiral Carbon Nanorings...and One Ring to Rule Them All
Creators: name: Wong, Bryan M.
name: Lee, Jonathan W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Carbon nanorings are hoop-shaped, π-conjugated macrocycles which form the fundamental annular segments of single-walled carbon nanotubes (SWNTs). In a very recent report, the structures of chiral carbon nanorings (which may serve as chemical templates for synthesizing chiral nanotubes) were experimentally synthesized and characterized for the first time. Here, in our communication, we show that the excited-state properties of these unique chiral nanorings exhibit anomalous and extremely interesting optoelectronic properties, with excitation energies growing larger as a function of size (in contradiction with typical quantum confinement effects). While the first electronic excitation in armchair nanorings is forbidden with a weak oscillator strength, we find that the same excitation in chiral nanorings is allowed due to a strong geometric symmetry breaking. Most importantly, among all the possible nanorings synthesized in this fashion, we show that only one ring, corresponding to a SWNT with chiral indices (n+3,n+1), is extremely special with large photoinduced transitions that are most readily observable in spectroscopic experiments.
description: Accepted by the Journal of Physical Chemistry Letters
Portrait of George Gordon, 6th Baron Byron (1788-1824)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2017

description: This half-length portrait of Byron derives from George Sanders' 1807-09 portrait now in the Royal Collection, and is taken from the engraved frontispiece to "Finden's Landscape and Portrait Illustrations of Lord Byron's Life and Works" (London, 1834). The color of his waistcoat and the inside his jacket differs from the original painting.
Sharp Bounds for Genetic Drift in Estimation of Distribution Algorithms
Creators: name: Doerr, Benjamin
name: Zheng, Weijie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Estimation of Distribution Algorithms (EDAs) are one branch of Evolutionary Algorithms (EAs) in the broad sense that they evolve a probabilistic model instead of a population. Many existing algorithms fall into this category. Analogous to genetic drift in EAs, EDAs also encounter the phenomenon that updates of the probabilistic model not justified by the fitness move the sampling frequencies to the boundary values. This can result in a considerable performance loss. This paper proves the first sharp estimates of the boundary hitting time of the sampling frequency of a neutral bit for several univariate EDAs. For the UMDA that selects $μ$ best individuals from $λ$ offspring each generation, we prove that the expected first iteration when the frequency of the neutral bit leaves the middle range $[\tfrac 14, \tfrac 34]$ and the expected first time it is absorbed in 0 or 1 are both $Θ(μ)$. The corresponding hitting times are $Θ(K^2)$ for the cGA with hypothetical population size $K$. This paper further proves that for PBIL with parameters $μ$, $λ$, and $ρ$, in an expected number of $Θ(μ/ρ^2)$ iterations the sampling frequency of a neutral bit leaves the interval $[Θ(ρ/μ),1-Θ(ρ/μ)]$ and then always the same value is sampled for this bit, that is, the frequency approaches the corresponding boundary value with maximum speed. For the lower bounds implicit in these statements, we also show exponential tail bounds. If a bit is not neutral, but neutral or has a preference for ones, then the lower bounds on the times to reach a low frequency value still hold. An analogous statement holds for bits that are neutral or prefer the value zero.
Bayesian estimation of some generalized probability distributions
Creators: name: Islam, Muhammad Nurul, 1951-
Publisher: name: University of Calgary
Year: 1985
Subjects: subject: QA 279.5 I64 1986
subject: Bayesian statistical decision theory
subject: Poisson distribution
subject: Distribution (Probability theory)
subject: Negative binomial distribution

description: Bibliography: p. 136-140.
Characterization of new hard X-ray Cataclysmic Variables
Creators: name: Bernardini, F.
name: de Martino, D.
name: Falanga, M.
name: Mukai, K.
name: Matt, G.
name: Bonnet-Bidaud, J. -M.
name: Masetti, N.
name: Mouchet, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We aim at characterizing a sample of 9 new hard X-ray selected Cataclysmic Variable (CVs), to unambiguously identify them as magnetic systems of the Intermediate Polar (IP) type. We performed timing and spectral analysis by using X-ray, and simultaneous UV and optical data collected by XMM-Newton, complemented with hard X-ray data provided by INTEGRAL and Swift. The pulse arrival time were used to estimate the orbital periods. The X-ray spectra were fitted using composite models consisting of different absorbing columns and emission components. Strong X-ray pulses at the White Dwarf (WD) spin period are detected and found to decrease with energy. Most sources are spin-dominated systems in the X-rays, though four are beat dominated at optical wavelengths. We estimated the orbital period in all system (except for IGR J16500-3307), providing the first estimate for IGR J08390-4833, IGR J18308-1232, and IGR J18173-2509. All X-ray spectra are multi-temperature. V2069 Cyg and RX J0636+3535 posses a soft X-ray optically thick component at kT 80 eV. An intense K_alpha Fe line at 6.4 keV is detected in all sources. An absorption edge at 0.76 keV from OVII is detected in IGR J08390-4833. The WD masses and lower limits to the accretion rates are estimated. We found all sources to be IPs. IGR J08390-4833, V2069 Cyg, and IGR J16500-3307 are pure disc accretors, while IGR J18308-1232, IGR J1509-6649, IGR J17195-4100, and RX J0636+3535 display a disc-overflow accretion mode. All sources show a temperature gradient in the post-shock regions and a highly absorbed emission from material located in the pre-shock flow which is also responsible for the X-ray pulsations. Reflection at the WD surface is likely the origin of the fluorescent iron line. There is an increasing evidence for the presence of a warm absorber in IPs. The addition of 2 systems to the subgroup of soft X-ray IPs confirms a \sim 30% incidence.
description: 23 pages, 11 figures, 7 tables, accepter for publication in A&A in April 2012
Strong localization of invariant metrics
Creators: name: Fornæss, John Erik
name: Nikolov, Nikolai
Publisher: name: arXiv
Year: 2019
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: A quantitative version of strong localization of the Kobayashi, Azukawa and Sibony metrics, as well as of the squeezing function, near a plurisubharmonic peak boundary point of a domain in $\Bbb C^n$ is given. As an application, the behavior of these metrics near a strictly pseudoconvex boundary point is studied. A weak localization of the three metrics and the squeezing function is also given near a plurisubharmonic antipeak boundary point.
description: v2: slightly extended version; v3: to appear in Math. Ann. We have added a counterpart to Theorem 1 in the case where $\infty$ is a psh peak point
Portrait Miniature of Alexander Hamilton (1757-1804)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2017

description: This portrait miniature of Hamilton is displayed in the center of an embroidered border that likely dates from the 19th century. It depicts Hamilton dressed in a gray-blue coat and pink waistcoat, wearing a white wig. Embroidery attributed to Elizabeth Schuyler Hamilton
title: Ungewöhnliche Fernmetastasierung im Kopf-Hals-Bereich
Creators: name: Schröer, Julia
name: Knolle, Jürgen
name: Stock, Karsten
name: Hirt, Roman
name: Knipping, Stephan
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Malignome im Kopf-Hals-Bereich gehen meist von der Schleimhaut der oberen Atem- und Speisewege oder den Speicheldrüsen aus. Lymphogene Metastasen sind häufig. Bei Malignomen anderer Organe kann es zur Spätmetastasierung in den Kopf-Hals-Bereich kommen, meist aus Lunge, Brust,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie
Willi Wegewitz, Der langobardische Urnenfriedhof von Tostedt-Wüstenhöfen im Kreise Harburg
Creators: name: Uslar, Rafael Von
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Willi Wegewitz, Der langobardische Urnenfriedhof von Tostedt-Wüstenhöfen im Kreise Harburg. Die Urnenfriedhöfe in Niedersachsen, hrsg. von Prof. Dr. C. Schuchhardt, Bd. 2, Heft 5-6. Hildesheim und Leipzig 1944. 4°. VIII und 159 S. mit 103 Abbildungen im Text und 13 Tafeln
description: Bonner Jahrbücher, Bd. 148 (1948): Bonner Jahrbücher des Vereins von Altertumsfreunden im Rheinlande und des Rheinischen Provinzialmuseums in Bonn
The World Heritage Potential of 20th Century Urban Heritage in the Former Soviet Union
Creators: name: Dushkina, Natalia
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2020

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 69 (2019): ICOMOS – Hefte des Deutschen Nationalkomitees