cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Binomial upper bounds on generalized moments and tail probabilities of (super)martingales with differences bounded from above
Creators: name: Pinelis, Iosif
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15, 60G42, 60G48, 60G50 (Primary)

description: Let $(S_0,S_1,...)$ be a supermartingale relative to a nondecreasing sequence of $σ$-algebras $H_{\le0},H_{\le1},...$, with $S_0\le0$ almost surely (a.s.) and differences $X_i:=S_i-S_{i-1}$. Suppose that $X_i\le d$ and $\mathsf {Var}(X_i|H_{\le i-1})\le σ_i^2$ a.s. for every $i=1,2,...$, where $d>0$ and $σ_i>0$ are non-random constants. Let $T_n:=Z_1+...+Z_n$, where $Z_1,...,Z_n$ are i.i.d. r.v.'s each taking on only two values, one of which is $d$, and satisfying the conditions $\mathsf {E}Z_i=0$ and $\mathsf {Var}Z_i=σ^2:=\frac{1}{n}(σ_1^2+...+σ_n^2)$. Then, based on a comparison inequality between generalized moments of $S_n$ and $T_n$ for a rich class of generalized moment functions, the tail comparison inequality $$ \mathsf P(S_n\ge y) \le c \mathsf P^{\mathsf Lin,\mathsf L C}(T_n\ge y+\tfrach2)\quad\forall y\in \mathbb R$$ is obtained, where $c:=e^2/2=3.694...$, $h:=d+σ^2/d$, and the function $y\mapsto \mathsf {P}^{\mathsf {Lin},\mathsf {LC}}(T_n\ge y)$ is the least log-concave majorant of the linear interpolation of the tail function $y\mapsto \mathsf {P}(T_n\ge y)$ over the lattice of all points of the form $nd+kh$ ($k\in \mathbb {Z}$). An explicit formula for $\mathsf {P}^{\mathsf {Lin},\mathsf {LC}}(T_n\ge y+\tfrac{h}{2})$ is given. Another, similar bound is given under somewhat different conditions. It is shown that these bounds improve significantly upon known bounds.
description: Published at http://dx.doi.org/10.1214/074921706000000743 in the IMS Lecture Notes Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Quantum Statistics of Interacting Dimer Spin Systems
Creators: name: Rüegg, Ch.
name: Normand, B.
name: Matsumoto, M.
name: Niedermayer, Ch.
name: Furrer, A.
name: Krämer, K. W.
name: Güdel, H. U.
name: Bourges, Ph.
name: Sidis, Y.
name: Mutka, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The compound TlCuCl3 represents a model system of dimerized quantum spins with strong interdimer interactions. We investigate the triplet dispersion as a function of temperature by inelastic neutron scattering experiments on single crystals. By comparison with a number of theoretical approaches we demonstrate that the description of Troyer, Tsunetsugu, and Wuertz [Phys. Rev. B 50, 13515 (1994)] provides an appropriate quantum statistical model for dimer spin systems at finite temperatures, where many-body correlations become particularly important.
description: 4 pages, 4 figures, to appear in Physical Review Letters
title: Studienerfahrungen und Berufsvorstellungen am Ende eines Studiums der Evangelischen Religions- und Gemeindepädagogik: „Im Idealfall werde ich an der Schnittstelle von Kirche und Gesellschaft arbeiten.“ Auswertung für den Studienstandort Hochschule Hannover: Zwei-Fächer-Bachelorstudiengang ‚Religionspädagogik und Soziale Arbeit‘
Creators: name: Piroth, Nicole
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 360 Soziale Probleme, Sozialdienste, Versicherungen
subject: 370 Erziehung, Schul- und Bildungswesen

description: An acht deutschen Hochschulen besteht heute die Möglichkeit, einen grundständigen Bachelorstudiengang Evangelische Religions- bzw. Gemeindepädagogik zu absolvieren, der je nach landeskirchlicher Tradition die kirchliche Berufsanerkennung als Diakon/in bzw. Gemeindepädagoge/-pädagogin ermöglicht. An fünf Standorten kann diese Qualifikation mit einem zweiten Abschluss in Sozialer Arbeit verbunden werden, der zu einer staatlichen Anerkennung als Sozialarbeiterin bzw. Sozialpädagoge führt. Welche Erfahrungen machen Studierende im Laufe eines Studiums der Religions- und Gemeindepädagogik? Wie gut fühlen sie sich durch das Studium auf eine anschließende eigenständige Berufstätigkeit vorbereitet? Welche Vorstellungen haben sie von den Arbeitsfeldern und Aufgabenbereichen in denen sie später arbeiten wollen? Um Antwort auf diese Fragen zu erhalten wurden die Studierenden zum Ende ihres Studiums befragt. Der vorliegende Bericht fasst zentrale Ergebnisse für den Studienstandort Hannover zusammen und vergleicht diese mit jenen anderer Hochschulstandorte.
Local density approximation for a perturbative equation of state
Creators: name: Astrakharchik, G. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The knowledge of a series expansion of the equation of state provides a deep insight into the physical nature of a quantum system. Starting from a generic ``perturbative'' equation of state of a homogeneous ultracold gas we make predictions for the properties of the gas in the presence of harmonic confinement. The local density approximation is used to obtain the chemical potential, total and release energies, Thomas-Fermi size and density profile of a trapped system in three-, two-, and one- dimensional geometries. The frequencies of the lowest breathing modes are calculated using scaling and sum-rule approaches and could be used in an experiment as a high precision tool for obtaining the expansion terms of the equation of state. The derived formalism is applied to dilute Bose and Fermi gases in different dimensions and to integrable one-dimensional models. Physical meaning of expansion terms in a number of systems is discussed.
description: 3 Figures
CONFINED ANIMAL PRODUCTION AND MANURE NUTRIENTS
Creators: name: Gollehon, Noel R.
name: Caswell, Margriet
name: Ribaudo, Marc
name: Kellogg, Robert L.
name: Lander, Charles
name: Letson, David
name: Gollehon, Noel R.
name: Caswell, Margriet
name: Ribaudo, Marc
name: Kellogg, Robert L.
name: Lander, Charles
name: Letson, David
Publisher: name: Unknown
Year: 2000
Subjects: Livestock Production/Industries

description: Using data from the Census of Agriculture on animal inventory and sales, we estimate manure nutrient production on farms with confined livestock. Using reported on-farm production of crops on these same farms, we estimate the nutrient uptake for major field crops and pastureland. This enables us to examine the balance between manure nutrient production and nutrient need measured by crop uptake at a farm level. Examination at alternative spatial scales, shows that 75 percent of counties in the U.S. have farms that produce more manure nutrients than can be assimilated on the farm of production (excess nitrogen).The vast majority of the counties that produce excess nitrogen have adequate land in the county to spread the manure at agronomic rates. Thus, proposed policies that focus on land application have the potential to limit manure nutrient movement to waterways in most areas, if properly managed. However, moving manure to crop farms that formerly had not used manure will increase costs. There were about 5 percent of counties where the manure nitrogen production levels from confined animal production exceeded half the nitrogen assimilative capacity of all the cropland and pastureland in the county. These areas have the greatest need for mechanisms to encourage off-farm solutions to utilize manure as a feedstock for commercial enterprises or central processing.
Molitor, Joseph: Flossarium Ibericum in quattuor evangelia et actus apostolorum antiquioris versionis etiam textus chanmenti et haemeti complectens
Creators: name: Assfalg, Julius
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
Decision Support for Intoxication Prediction Using Graph Convolutional Networks
Creators: name: Burwinkel, Hendrik
name: Keicher, Matthias
name: Bani-Harouni, David
name: Zellner, Tobias
name: Eyer, Florian
name: Navab, Nassir
name: Ahmadi, Seyed-Ahmad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: 68T99

description: Every day, poison control centers (PCC) are called for immediate classification and treatment recommendations if an acute intoxication is suspected. Due to the time-sensitive nature of these cases, doctors are required to propose a correct diagnosis and intervention within a minimal time frame. Usually the toxin is known and recommendations can be made accordingly. However, in challenging cases only symptoms are mentioned and doctors have to rely on their clinical experience. Medical experts and our analyses of a regional dataset of intoxication records provide evidence that this is challenging, since occurring symptoms may not always match the textbook description due to regional distinctions, inter-rater variance, and institutional workflow. Computer-aided diagnosis (CADx) can provide decision support, but approaches so far do not consider additional information of the reported cases like age or gender, despite their potential value towards a correct diagnosis. In this work, we propose a new machine learning based CADx method which fuses symptoms and meta information of the patients using graph convolutional networks. We further propose a novel symptom matching method that allows the effective incorporation of prior knowledge into the learning process and evidently stabilizes the poison prediction. We validate our method against 10 medical doctors with different experience diagnosing intoxication cases for 10 different toxins from the PCC in Munich and show our method's superiority in performance for poison prediction.
description: 10 pages, 3 figures
Franz [Ziegler] an Theodor Heusser
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1870

description: Textincipit: "Mein lieber Theodor! / Du wirst allerdings [?] sein / über meine abschlägigen Depeschen; / [...]" / Absender nicht eindeutig identifiziert.
title: Digitalisierung und Öffnung von Kulturerbe
Creators: name: Tannhäuser, Iris
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die vorliegende Ausarbeitung befasst sich mit der Digitalisierung und der Öffnung des Kulturerbes. Anhand einer theoretischen und qualitativen Untersuchung mit Experteninterviews soll verdeutlicht werden, warum einige Kulturerbeinstitutionen wenig motiviert sind, ihre Sammlungen und Artefakte digital zu öffnen. Mit Hilfe von sieben Experteninterviews aus unterschiedlichen kulturellen Digitalisierungsbereichen soll erforscht werden, wo die Kulturerbedigitalisierung aktuell steht und welche Chancen und Risiken Digitalisierungsmaßnahmen fördern oder hemmen. Weiter werden die Ergebnisse geprüft, um daraus mobilisierende Maßnahmen zu erkennen.
GEM operation in helium and neon at low temperatures
Creators: name: Buzulutskov, A.
name: Dodd, J.
name: Galea, R.
name: Ju, Y.
name: Leltchouk, M.
name: Rehak, P.
name: Tcherniatine, V.
name: Willis, W. J.
name: Bondar, A.
name: Pavlyuchenko, D.
name: Snopkov, R.
name: Tikhonov, Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We study the performance of Gas Electron Multipliers (GEMs) in gaseous He, Ne and Ne+H2 at temperatures in the range of 2.6-293 K. In He, at temperatures between 62 and 293 K, the triple-GEM structures often operate at rather high gains, exceeding 1000. There is an indication that this high gain is achieved by Penning effect in the gas impurities released by outgassing. At lower temperatures the gain-voltage characteristics are significantly modified probably due to the freeze-out of impurities. In particular, the double-GEM and single-GEM structures can operate down to 2.6 K at gains reaching only several tens at a gas density of about 0.5 g/l; at higher densities the maximum gain drops further. In Ne, the maximum gain also drops at cryogenic temperatures. The gain drop in Ne at low temperatures can be reestablished in Penning mixtures of Ne+H2: very high gains, exceeding 10000, have been obtained in these mixtures at 50-60 K, at a density of 9.2 g/l corresponding to that of saturated Ne vapor near 27 K. The results obtained are relevant in the fields of two-phase He and Ne detectors for solar neutrino detection and electron avalanching at low temperatures.
description: 13 pages, 14 figures. Accepted for publishing in Nucl. Instr. and Meth. A
title: Bibliothekare und Informationswissenschaftler mit IT-Schwerpunkt in Deutschland – Bedarf, Aufgaben, Kompetenzanforderungen und Vergleich der IT-Kompetenzen in Praxis und Studium
Creators: name: Zellmann, Cedrik
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die vorliegende Bachelorarbeit untersucht mittels Stellenanzeigenanalyse von Bibliothekaren mit IT-Schwerpunkt (System- und IT-Bibliothekare, Bibliotheksinformatiker, Data Librarians etc.) sowie anhand eines Vergleichs der Curricula informationswissenschaftlicher Studiengänge, inwieweit den informationstechnischen Anforderungen der modernen Arbeitswelt in der Hochschulausbildung hinreichend Rechnung getragen wird. Zu diesem Zweck liegen 179 IT-bibliothekarische Stellen der Jahre 2012-2017 von OpenBiblioJobs vor, die u. a. hinsichtlich Bedarf, Aufgaben, Kompetenzanforderungen sowie weiteren Inhalten zum Beschäftigungsverhältnis ausgewertet sind. Die analysierten IT-Kompetenzen sind den Modulinhalten von 14 Bachelor- und 9 Masterstudiengängen gegenübergestellt. Das durchschnittliche Jahreswachstum der IT-lastigen Stellenangebote im Untersuchungszeitraum liegt bei 38,25 % und bestätigt damit den Bedarf an Absolventen bibliothekarischer IT-Profile. Systemorientierte Stellen benötigen u. a. vertiefte Kompetenzen mit bibliothekarischen Informationssystemen, den dort vorkommenden Daten(-banken) und Kenntnisse in der Programmierung, um die Konzeption, Administration und den Support dieser Systeme zu gewährleisten. Diese IT-Kompetenzen werden passend zum vorausgesetzten Abschluss (Bachelor) und der Vergütung (E9-12) in vielen Bachelorstudiengängen in grundlegender Form vermittelt, oft jedoch nur als Wahlpflichtmodule. Datenorientierte Stellen setzen überwiegend den Master voraus und sind dementsprechend ab E13 eingruppiert. Neben Kompetenzen im gesamten Bereich des Datenmanagements (samt Meta- und Forschungsdaten), Fähigkeiten in der Analyse von Daten und deren Visualisierung sowie in Big und Linked Data, sind insbesondere umfassende Kenntnisse im Wissenschaftsbetrieb gefordert. Im Gegensatz zu systemorientierten Stellen, für die passende Studiengänge mit vertieften IT-Inhalten existieren, fehlt bislang ein Masterstudiengang für das Datenmanagement, der die nötigen Kompetenzen konzertiert beinhaltet – nur einzelne Bereiche werden bislang abgedeckt. Die Arbeit richtet sich an Interessierte im Informationsbereich, Koordinatoren bibliothekarischer Studiengänge sowie Bibliotheksverbände.
On the Origin of Metallicity and Stability of the Metastable Phase in Chemically Exfoliated MoS$_2$
Creators: name: Pariari, Debasmita
name: Varma, Rahul Mahavir
name: Nair, Maya N.
name: Zeller, Patrick
name: Amati, Matteo
name: Gregoratti, Luca
name: Nanda, Karuna Kar
name: Sarma, D. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chemical exfoliation of MoS$_2$ via Li-intercalation route has led to many desirable properties and spectacular applications due to the presence of a metastable state in addition to the stable H phase. However, the nature of the specific metastable phase formed, and its basic charge conduction properties have remained controversial. Using spatially resolved Raman spectroscopy (~1 micrometer resolution) and photoelectron spectroscopy (~120 nm resolution), we probe such chemically exfoliated MoS$_2$ samples in comparison to a mechanically exfoliated H phase sample and confirm that the dominant metastable state formed by this approach is a distorted T' state with a small semiconducting gap. Investigating two such samples with different extents of Li residues present, we establish that Li+ ions, not only help to exfoliate MoS$_2$ into few layer samples, but also contribute to enhancing the relative stability of the metastable state as well as dope the system with electrons, giving rise to a lightly doped small bandgap system with the T' structure, responsible for its spectacular properties.
description: 34 pages, Main manuscript + Supplementary Material
Semi-classical and anharmonic quantum models of nuclear wobbling motion
Creators: name: Oi, Makito
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A semi-classical model for wobbling motion is presented as an extension to the Bohr-Mottelson model of wobbling motion. Using the resultant wobbling potential, a quantum mechanical equation is derived for anharmonic wobbling motion. We then attempt to explain the anharmonicity observed in the excited bands of two wobbling phonons in the A=160 region.
description: 5 pages, 2 figures, accepted in Phys. Lett. B
title: System(at)isch agil – Wie agile Prozesse in ein Managementsystem nach ISO 9001:2015 integriert werden können
Creators: name: Adam, Patricia A.
Publisher: name: DGQ Deutsche Gesellschaft für Qualität e.V.
Year: 2018
Subjects: subject: 650 Management

description: Viele Unternehmen experimentieren mit Agilität. Gleichzeitig ist die Unsicherheit groß, wieviel Agilität ein QM-System nach ISO 9001 tatsächlich verträgt. Ein gemeinsames Forschungsprojekt der Hochschule Hannover und der DGQ hat sich zum Ziel gesetzt, hier mehr Sicherheit zu geben. Aus Interviews mit Vertretern von Unternehmen, welche teilweise agil arbeiten, entstand erstmals eine klare Definition von Agilität, agilen Praktiken und agilen Prozessen im Organisationskontext. Die daraus entwickelten Leitlinien für die Integration von agilen Vorgehensweisen in QM-Systeme beweisen schlüssig, dass agile Prozesse grundsätzlich nach den ISO 9001-Kriterien zertifizierungsfähig ausgestaltet werden können.
description: Management; 1
Contraction of Dark Matter Halos in Response to Condensation of Baryons
Creators: name: Gnedin, Oleg Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The cooling of baryons in the centers of dark matter halos leads to a more concentrated dark matter distribution. This effect has traditionally been calculated using the model of adiabatic contraction, which assumes spherical symmetry, while in hierarchical formation scenarios halos grow via multiple violent mergers. We test the adiabatic contraction model in high-resolution cosmological simulations and find that the dissipation of gas indeed increases the density of dark matter and steepens its radial profile compared to the case without cooling. Although the standard model systematically overpredicts the increase of dark matter density, a simple modification of the assumed invariant from M(r)r to M()r, where is the orbit-averaged particle position, reproduces the simulated profiles within 10%.
description: 6 pages, invited talk at the XXI IAP Colloquium, Paris, July 2005
title: Steuerungsmechanismen agiler Prozesse
Creators: name: Japing, Tonio André
Publisher: name: Hochschule Hannover
Year: 2018
Subjects: subject: 650 Management

description: Agilität gilt als Trend in der Unternehmensführung, kontrovers diskutiert ist jedoch die Implementierung agiler Prozesse in standardisierte Managementsysteme. Auf Grundlage einer systematischen Literaturanalyse wird sich der Synthese dieser Extreme aus empirischen Vorgehensweisen und regulierten Umgebungen gewidmet. Anhand einer eigens definierten, qualitativ angereicherten Vorgehensweise wird den Thesen gefolgt, dass agile Prozesse ähnlichen Mechanismen klassischer Prozesssteuerung unterliegen und über diese Hebel in Managementsysteme implementierbar sind. Der Annahme folgend, dass derartige Steuerungsmechanismen extrahiert und definiert werden können, wird der Transfer anhand der ISO 9000-Reihe konkretisiert. Die Ausarbeitung der Steuerungsmechanismen offenbart indessen marginale Differenzen in der Lenkung agiler und klassischer Prozesse. Im Ergebnis zeigt sich, dass ebendiese Steuerungsmechanismen ferner unter Bezugnahme auf die ISO 9001:2015 validiert werden können. Im Rahmen der Übertragung auf agile Prozesse überwiegt die Kompatibilität, jedoch schmälert die inhärente Informalität agiler Prozesse unter Umständen die Wahrscheinlichkeit einer Zertifizierung und bedarf daher gesonderter Betrachtung.
description: Agility is considered a hype in management. The implementation in standardized management systems, however, is controversially discussed. Based on a systematic literature review, the link between the extremes of empirical procedures and standardized environments is evaluated. Using a self-developed procedure including elements from qualitative methods, the hypothesis that agile processes actually feature few differences in process control compared to traditional processes, is reviewed. The assumption, that it is possible to extract and define such control mechanisms is followed in order to demonstrate the application for the ISO 9000-series. Meanwhile, the elaboration of control mechanisms displays minor differences in operating agile and traditional processes. As a result, the aforementioned control mechanisms are validated against the standard of ISO 9001:2015. Within the transfer towards agile processes, interoperability predominates, while inherent, informal characteristics of agile processes might prevent certification and therefore require separate reflection.
description: Management; 2
TRUNCATED REGRESSION IN EMPIRICAL ESTIMATION
Creators: name: Marsh, Thomas L.
name: Mittelhammer, Ronald C.
name: Marsh, Thomas L.
name: Mittelhammer, Ronald C.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Research Methods/ Statistical Methods
subject: doubly truncated samples
subject: Bayesian regression
subject: maximum entropy
subject: wheat-by-class

description: In this paper we illustrate the use of alternative truncated regression estimators for the general linear model. These include variations of maximum likelihood, Bayesian, and maximum entropy estimators in which the error distributions are doubly truncated. To evaluate the performance of the estimators (e.g., efficiency) for a range of sample sizes, Monte Carlo sampling experiments are performed. We then apply each estimator to a factor demand equation for wheat-by-class.
Sex differences and the effects of estrogen on cell proliferation, cell death and behaviour due to acute and repeated predator odour stress in adult rats
Creators: name: Falconer, Erin Michelle
Publisher: name: University of British Columbia
Year: 2009

description: Possible sex differences in response to predator odour exposure were examined in adult rats. The first study measured behaviour, cell proliferation, and survival in the dentate gyrus of adult males and females in response to acute and repeated trimethyl thiazoline (TMT, the main component of fox feces) or control odour exposure. Rats were injected with one of the cell synthesis markers bromodeoxyuridine (BrdU) or [³H] thymidine and perfused 24 hours (cell proliferation) after an acute TMT exposure or after 5 days (cell survival) of repeated TMT exposure. After acute exposure, cell proliferation and death were suppressed in TMT-exposed males compared to control males, but not in females. Repeated TMT exposure in males increased cell death and increased the survival of new cells born on Day 1 of exposure. Males initially expressed more defensive behaviours in response to TMT but this expression habituated after repeated TMT exposure. This habituation was concurrent with enhanced new cell survival, possibly indicating that learning enhanced new cell survival. In a second study, we assessed whether ovarian hormones altered the response to acute TMT exposure in females. Ovariectomized (OVX) females were given either a high dose of estradiol (EB) or a low dose of estradiol and progesterone followed by a high dose of estradiol (EB-P). TMT exposure did not affect cell proliferation in any group. However, hormone treatment affected the behavioural, hormonal, and cell death response to TMT. EB increased cell proliferation and decreased defensive behaviour whereas EB-P decreased cell proliferation and increased defensive behaviour. Thus, we demonstrated that pre-treatment with a low dose of estradiol and progesterone profoundly affected the behavioural and cellular response to later administration of estradiol. Taken together, acute TMT exposure suppressed both cell proliferation and death while repeated TMT exposure enhanced new cell survival and cell death in males. However, female rats did not show a change in cell proliferation, regardless of hormone condition, but OVX female rats exhibited increased cell death in response to acute TMT exposure. This is the first demonstration of a sex difference in cell proliferation and cell death in the adult dentate gyrus in response to stress.
Non-equilibrium beta processes in superfluid neutron star cores
Creators: name: Villain, L.
name: Haensel, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The influence of nucleons superfluidity on the beta relaxation time of degenerate neutron star cores, composed of neutrons, protons and electrons, is investigated. We numerically calculate the implied reduction factors for both direct and modified Urca reactions, with isotropic pairing of protons or anisotropic pairing of neutrons. We find that due to the non-zero value of the temperature and/or to the vanishing of anisotropic gaps in some directions of the phase-space, superfluidity does not always completely inhibit beta relaxation, allowing for some reactions if the superfluid gap amplitude is not too large in respect to both the typical thermal energy and the chemical potential mismatch. We even observe that if the ratio between the critical temperature and the actual temperature is very small, a suprathermal regime is reached for which superfluidity is almost irrelevant. On the contrary, if the gap is large enough, the composition of the nuclear matter can stay frozen for very long durations, unless the departure from beta equilibrium is at least as important as the gap amplitude. These results are crucial for precise estimation of the superfluidity effect on the cooling/slowing-down of pulsars and we provide online subroutines to be implemented in codes for simulating such evolutions.
description: 11 pages, 6 Figs., published, minor changes, subroutines can be found on line at http://luth2.obspm.fr/~etu/villain/Micro/Resolution.html
$T$-$Q$ relation and exact solution for the XYZ chain with general nondiagonal boundary terms
Creators: name: Yang, Wen-Li
name: Zhang, Yao-Zhong
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose that the Baxter's $Q$-operator for the XYZ quantum spin chain with open boundary conditions is given by the $j\to \infty$ limit of the corresponding transfer matrix with spin-$j$ (i.e., $(2j+1)$-dimensional) auxiliary space. The associated $T$-$Q$ relation is derived from the fusion hierarchy of the model. We use this relation to determine the Bethe Ansatz solution of the eigenvalues of the fundamental transfer matrix. This solution yields the complete spectrum of the Hamiltonian.
description: Revtex4, 4 pages; V2, Latex file, 22 pages, the title is changed and new version contains the detailed derivations; V3, minor typos corrected, this version appears in Nucl. Phys. B
AGRICULTURE IN CANADA: WHO WILL GROW THE FOOD?
Creators: name: Lerohl, Mel L.
name: Unterschultz, James R.
name: Lerohl, Mel L.
name: Unterschultz, James R.
Publisher: name: Unknown
Year: 2000
Subjects: Food Security and Poverty

description: Key issues in the current agricultural debate include the future of family farms, levels of government support for farms, the roles of marketing institutions and the effect of new trade arrangements. In part, these issues have arisen because of recent price volatility, but the agricultural debate has also raised basic questions: Can farming in Canada survive, and if so, what will the new farms look like? The future of farming is approached through evidence on land values and assessments of alternative land use. The future structure of farms is approached through a review of farm size, location and product mix. Farm sizes are increasingly bi-modal, with small farms relatively insulated from farm markets, and large specialized farms dependent on the market for a narrow range of commodities. Policy changes influencing product mix or regional specialization are also reviewed. About one-half of farm output in Canada now comes from the prairie region of Canada. Open trading relationships and subsidy changes are further modifying the regional location of farming. Changes in marketing board arrangements and withering of prime farmland restrictions will lead to further shifts. The following appear to be key factors in assessing future directions for farming and farm structure: For small farms, numbers are not declining, but these operations contribute relatively little to farm output. For commercial farms, technology and scale factors are leading to larger sizes and increasing specialization. Specialization is expected to occur regionally as well as within farms, and the prairie provinces are likely to become an increasingly important part of Canadian agriculture. The sizes of commercial farms are such that few farms will be financed by single families, and the balance sheets as well as the management structures of new commercial farms will increasingly mirror those in the non-farm economy.
Primordial black hole formation by vacuum bubbles II
Creators: name: Deng, Heling
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The discoveries of LIGO/Virgo black holes in recent years have revitalized the study of primordial black holes. In this work, we investigate a mechanism where primordial black holes are formed by vacuum bubbles that randomly nucleate during inflation through quantum tunneling. After inflation, these bubbles typically run into the ambient radiation fluid with a large Lorentz factor. In our previous work, we assumed the bubble fields are strongly coupled to the standard model particles so that the bubble wall is impermeable. Here we complete this picture by considering bubbles interacting with the fluid only through gravity. By studying the scenario in several limits, we found that black holes could form in either subcritical or supercritical regime. Depending on the model parameters, the resulting mass spectrum of the black holes could be wide or narrow, and may develop two peaks separated by a large mass range. With different spectra, these black holes may account for the LIGO/Virgo black holes, supermassive black holes, and may play an important role in dark matter.
description: 28 pages, 5 figures
திருமறையின் சாராம்சம்
Creators: name: முனைவர் தி. அறக்கலைச்செல்வி பிஎச்.டி.,
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: திருமுறை 1600 ஆண்டு காலமாக சுமார் 40 நூல் ஆசிரியர்களைக் கொண்டு எழுதப்பட்டது. திருமறையை எழுதியவர்கள் கடவுளால் ஆட்கொள்ளப்பட்டவர்கள். திருமறை இயேசு கிறிஸ்துவின் பல வசனங்கள் எடுத்துரைக்கின்றன. எனவே, திருமறை தேவனால் எழுதப்பட்டவை என ஏற்றுக்கொள்ளப்படுகிறது. திருமறையின் சாரத்தை இக்கட்டுரை ஆராய்கிறது
Schwinger Effect in Near-extremal Charged Black Holes in High Dimensions
Creators: name: Cai, Rong-Gen
name: Chen, Chiang-Mei
name: Kim, Sang Pyo
name: Sun, Jia-Rui
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the Schwinger effect in near-extremal nonrotating black holes in an arbitrary $D(\geq 4)$-dimensional asymptotically flat and (A)dS space. Using the near-horizon geometry $\mathrm{AdS}_2 \times \mathrm{S}^{D-2}$ of near-extremal black holes with Myers-Perry metric, we find a universal expression of the emission formula for charges that is a multiplication of the Schwinger effects in an $\mathrm{AdS}_2$ space and in a two-dimensional Rindler space. The effective temperature of an accelerated charge for the Schwinger effect is determined by the radii of the effective $\mathrm{AdS}_2$ space and $\mathrm{S}^{D-2}$ as well as the mass, charge, angular momentum of the charge and the radius of the (A)dS space. The Schwinger effect in the asymptotically flat space is more efficient and persistent for a wide range of large black holes for dimensions higher than four. The AdS (dS) boundary enhances (suppresses) the Schwinger effect than the asymptotically flat space. The Schwinger effect persists for a wide range of black holes in the AdS space and has an upper bound in the dS space.
description: RevTex 11 pages, 11 figures
title: Hannoversche Korruptionsskala Österreich-Version (HKS 38 Ö)
Creators: name: Heber, Frank
name: Seibold, Sven M.
name: Schäffer, Angelika
Year: 2018
Subjects: subject: 150 Psychologie

description: Mit der Hannoverschen Korruptionsskala Österreich-Version (kurz: HKS 38 Ö) kann die Einstellung zu Korruption gemessen werden. Die HKS 38 Ö ist eine Adaption der Hannoverschen Korruptionsskala (kurz: HKS 38) für den österreichischen Sprachraum. Die testtheoretische Überprüfung der HKS 38 Ö wird unter anderem in diesem Manual beschrieben. Die HKS 38 Ö besteht aus 38 Items, die den Einstellungskomponenten kognitiv, affektiv und konativ zugeordnet werden können. Innerhalb dieses Manuals werden zwei Datenerhebungen geschildert. Mit einer ersten Datenerhebung wurde geprüft, ob die HKS 38 grundsätzlich für eine Anwendung in Österreich geeignet ist und ähnlich zuverlässige Messungen wie in Deutschland ermöglicht. Die Erfahrungen aus der ersten Datenerhebung – insbesondere die Hinweise von Testpersonen zur sprachlichen Verständlichkeit – führten zur Erstellung der HKS 38 Ö. Die HKS 38 Ö wurde im Rahmen einer zweiten Datenerhebung entsprechend der klassischen Testtheorie überprüft und auf Basis einer bevölkerungsrepräsentativen Telefonbefragung in Österreich (n ≈ 867) normiert. Die HKS 38 Ö eignet sich zur Befragung von Testpersonen ab einem Alter von 18 Jahren.
description: Personalpsychologie; 5
title: Psychosoziale Gesundheit erfordert Gegenwärtigkeit – eine Betrachtung aus spiritueller bzw. achtsamer Sicht
Creators: name: Kairies, Klaus
Year: 2018
Subjects: subject: 150 Psychologie

description: Leo A. Nefiodow, einer der angesehensten Vordenker der Informationsgesellschaft, verweist auf die großen Schäden und Verluste, die uns momentan durch psychische Störungen wie beispielsweise Angst, Depressionen, Burnout und ihre Folgen wie Gewalt, Kriminalität, Drogenmissbrauch und Erkrankungen entstehen. Die Förderung psychosozialer Gesundheit wäre somit geeignet, sowohl das Wohlbefinden des einzelnen Menschen zu verbessern als auch der Wirtschaft und der gesamten Gesellschaft einen Entwicklungsschub zu verleihen. Im Rahmen des Arbeitspapiers geht es darum, Möglichkeiten des Gegensteuerns aus dem Blickwinkel von Achtsamkeit vorzustellen. U. a. am praktischen Beispiel einer Schule wird versucht, das Wirkprinzip von Achtsamkeit zur Förderung psychosozialer Gesundheit in einer sozialen Einheit zu verdeutlichen.
description: Arbeitspapier / Hochschule Hannover, Fakultät IV; 11-2018
Optimal Choice of the Softening Length and Time-Step in N-body Simulations
Creators: name: Rodionov, S. A.
name: Sotnikova, N. Ya.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A criterion for the choice of optimal softening length $ε$ and time-step $dt$ for $N$-body simulations of a collisionless stellar system is analyzed. Plummer and Hernquist spheres are used as models to follow how changes in various parameters of an initially equilibrium stable model depend on $ε$ and $dt$. These dependences are used to derive a criterion for choosing $ε$ and $dt$. The resulting criterion is compared to Merritt's criterion for choosing the softening length, which is based on minimizing the mean irregular force acting on a particle with unit mass. Our criterion for choosing $ε$ and $dt$ indicate that $ε$ must be a factor of 1.5-2 smaller than the mean distance between particles in the densest regions to be resolved. The time-step must always be adjusted to the chosen $ε$ (the particle must, on average, travel a distance smaller than $0.5ε$ during one time-step). An algorithm for solving N-body problems with adaptive variations of the softening length is discussed in connection with the task of choosing $ε$, but is found not to be promising.
description: To be published in Astonomy Reports, 11 pages, 5 figures
தந்தை பெரியாரின் இயக்க நடவடிக்கைகள்
Creators: name: முனைவர் தி. அறக்கலைச்செல்வி பிஎச்.டி.,
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: திராவிட இயக்கம் திராவிட மக்களின் சமூக வாழ்வை மேம்படுத்துவதை நோக்கமாகக் கொண்டு தோன்றியதாகும். திராவிட இயக்க கட்சிகள் அவற்றின் வளர்ச்சிகள், கொள்கைகள், குறிக்கோள்கள், கோட்பாடுகள், திட்டங்கள், செயற்பாடுகள் அவற்றினால் ஏற்பட்டுள்ள பலன்கள் மற்றும் நன்மைகள் ஆகியவற்றை பற்றி அறிந்து கொள்ள இக்கட்டுரை துணைபுரியும்.
title: Entwicklung einer abgesicherten Ausführungsumgebung für automatisierte Bewertungsprozesse
Creators: name: Dierschke, Kai
Publisher: name: Hochschule Hannover
Year: 2019
Subjects: subject: 004 Informatik

description: In der Lehre kommen seit einiger Zeit Autobewerter zum Einsatz, um automatisiert oder teilautomatisiert Lösungen von Lernenden zu Programmieraufgaben zu bewerten. Aus Sicht eines Betreibers von Autobewerter-Systemen erfordert letzteres meist die Ausführung von fremdem Programmcode in der eigenen Server-Umgebung. Hierbei ist Vorsicht geboten, da fehlerhafter oder angriffslustiger Programmcode verbotene Aktionen ausführen könnte. An der Hochschule Hannover können Studierende Lösungen zu Programmieraufgaben verschiedener Programmiersprachen über das Lernmanagementsystem "moodle" einreichen. Die angeschlossene Middleware Grappa nimmt Lösungen anschließend entgegen und leitet diese an einen Autobewerter der zugehörigen Programmiersprache weiter. Diese Arbeit befasst sich damit, Sicherheitsrisiken bei der Ausführung von fremdem Programmcode durch Autobewerter zu identifizieren und zu vermeiden. Hierzu gilt es, mögliche Angriffe herauszustellen und aktuelle, angemessene Technologien zu finden, um diese zu verhindern. Anschließend findet mit einer Technologie die Entwicklung einer abgesicherten Ausführungsumgebung für beliebige an die Middleware Grappa angebundene Autobewerter statt. Die exemplarische Einbettung der beiden Autobewerter Graja und Praktomat in die entwickelte Ausführungsumgebung soll unter Beweis stellen, dass es sich um eine generische Lösung mit wenig Overhead handelt.
Infrared Scales and Factorization in QCD
Creators: name: Manohar, Aneesh V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Effective field theory methods are used to study factorization of the deep inelastic scattering cross-section. The cross-section is shown to factor in QCD, even though it does not factor in perturbation theory for some choices of the infrared regulator. Messenger modes are not required in soft-collinear effective theory for deep inelastic scattering as x -> 1.
description: 5 pages, 2 figures, revtex 4
SCET Analysis of B -> K pi, B -> K Kbar, and B -> pi pi Decays
Creators: name: Bauer, Christian W.
name: Rothstein, Ira Z.
name: Stewart, Iain W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: B -> K pi and related decays are studied in the heavy quark limit of QCD using the soft collinear effective theory (SCET). We focus on results that follow solely from integrating out the scale mb, without expanding the amplitudes for the physics at smaller scales such as alphas(sqrt{Epi LambdaQCD}). The reduction in the number of hadronic parameters in SCET leads to multiple predictions without the need of SU(3). We find that the CP-asymmetry in $B^-\to pi^0 K^-$ should have a similar magnitude and the same sign as the well measured asymmetry in $\bar B^0 \toπ^+ K^-$. Our prediction for Br(K^+π^-) exceeds the current experimental value at the 2 sigma level. We also use our results to determine the corrections to the Lipkin and CP-asymmetry sum rules in the standard model and find them to be quite small, thus sharpening their utility as a tool to look for new physics.
description: Added one relation for B->KK decays in the SU(3) limit. Added some references. Results and conclusions unchanged. 23 pages, 4 figures
Relationship between grain boundary segregation and grain boundary diffusion in Cu-Ag alloys
Creators: name: Koju, R. K.
name: Mishin, Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: While it is known that alloy components can segregate to grain boundaries (GBs), and that the atomic mobility in GBs greatly exceeds the atomic mobility in the lattice, little is known about the effect of GB segregation on GB diffusion. Atomistic computer simulations offer a means of gaining insights into the segregation-diffusion relationship by computing the GB diffusion coefficients of the alloy components as a function of their segregated amounts. In such simulations, thermodynamically equilibrium GB segregation is prepared by a semi-grand canonical Monte Carlo method, followed by calculation of the diffusion coefficients of all alloy components by molecular dynamics. As a demonstration, the proposed methodology is applied to a GB is the Cu-Ag system. The GB diffusivities obtained exhibit non-trivial composition dependencies that can be explained by site blocking, site competition, and the onset of GB disordering due to the premelting effect.
Renormalization of NN Interaction with Chiral Two Pion Exchange Potential. Non-Central Phases
Creators: name: Valderrama, M. Pavon
name: Arriola, E. Ruiz
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We extend the renormalization of the NN interaction with Chiral Two Pion Exchange Potential to the calculation of non-central partial wave phase shifts with total angular momentum j<=5 . The short distance singularity structure of the potential as well as the requirement of orthogonality conditions on the wave functions determines exactly the number of undetermined parameters after renormalization.
description: 21 pages, 9 figures, 4 tables. Remarks and references added. Figure 1S0 corrected
Recognition of Facial Expression using Deep Learning Model
Creators: name: Arunkumar S
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: People are using social media to express their Expressions. Automatic Facial expression recognition is an emerging topic for researchers. Emotions of a human being are expressed through Facial Expression. This work talks about the research works done in the field of facial expression identification and recognition method using Convolutional Neural Network (CNN). The proposed method produces a better result than the existing method found in the literature.
Search for the W-exchange decays B0 --> Ds(*)- Ds(*)+
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a search for the decays $B^{0} \to D_{s}^{-} D_{s}^{+}$, $B^{0} \to D_{s}^{*-} D_{s}^{+}$, $B^{0} \to D_{s}^{*-} D_{s}^{*+}$ in a sample of 232 million $Υ(4S)$ decays to \BBb ~pairs collected with the \babar detector at the PEP-II asymmetric-energy $e^+ e^-$ storage ring. We find no significant signal and set upper bounds for the branching fractions: ${\cal B}(B^{0} \to D_{s}^{-} D_{s}^{+}) < 1.0 \times 10^{-4}, {\cal B}(B^{0} \to D_{s}^{*-} D_{s}^{+}) < 1.3 \times 10^{-4}$ and ${\cal B}(B^{0} \to D_{s}^{*-} D_{s}^{*+}) < 2.4 \times 10^{-4}$ at 90% confidence level.
description: 8 pages, 2 figures, submitted to PRD-RC
École des Langues Orientales Anciennes de l'Institut Catholique de Paris
Creators: name: Assfalg, Julius
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 49 (1965): Oriens christianus, Band 49
title: Analysis of Marketing Tactics for Green Tourism
Creators: name: Boje, Kirsten
Publisher: name: Hochschule Hannover
Year: 2019
Subjects: subject: 330 Wirtschaft

description: Sustainable tourism is a niche market that has been growing in recent years. At the same time, companies in the mass tourism market have increasingly marketed themselves with a “green” image, although this market is not sustainable. In order to successfully market sustainability, targeted marketing tactics are needed. The aim of this research is to establish appropriate marketing tactics for sustainable tourism in the niche market and in the mass market. The purpose is to uncover current marketing tactics for both the mass tourism market and the sustainable tourism niche market. It also intends to explore how consumers who are more interested in sustainability differ from consumers with less interest in sustainability in terms of their perception of sustainability in tourism. Furthermore, this research paper will assess the trustworthiness of sustainable travel offers and the trustworthiness of quality seals in sustainable tourism. For this purpose, an online survey was conducted, which was addressed at German-speaking consumers. The survey showed, that consumers with more general interest in sustainability also consider sustainability to be more relevant in tourism. Offers for sustainable travel and quality seals were perceived as not very trustworthy. Moreover, no link could be found between the interest in sustainability and the perception of trustworthiness. On the basis of the above, it is advisable to directly advertise sustainability in the niche market and to mention sustainability in the mass market only as an accompaniment or not at all. Further research could be undertaken to identify which factors influence the trustworthiness of offers, and trustworthiness of quality seals in sustainable tourism.