cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Memory function approach to in-plane anisotropic resistivity in the antiferromagnetic phase of iron arsenide superconductors
Creators: name: Sugimoto, Koudai
name: Prelovšek, Peter
name: Kaneshita, Eiji
name: Tohyama, Takami
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically examine anisotropy of in-plane resistivity in the striped antiferromagnetic phase of an iron arsenide superconductor by applying a memory function approach to the ordered phase with isotropic nonmagnetic impurity. We find that the anisotropy of the scattering rate is independent of carrier density when the topology of the Fermi surface is changed after the introduction of holes. On the other hand, the anisotropy of the Drude weight monotonically decreases reflecting the distortion of the Dirac Fermi surface and eventually leads to the reverse of anisotropy of resistivity, being consistent with experiment. The origin of the anisotropy is thus attributed to the interplay of impurity scattering and anisotropic electronic states.
description: 7 pages, 4 figures
Two components for one resistivity in LaVO3/SrTiO3 heterostructures
Creators: name: Rotella, Helene
name: Copie, Olivier
name: Pautrat, Alain
name: Boullay, Philippe
name: David, Adrian
name: Labbe, Christophe
name: Frilay, Cedric
name: Pelloquin, Denis
name: Prellier, Wilfrid
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A series of 100 nm LaVO3 thin films have been synthesized on (001)-oriented SrTiO3 substrates using the pulsed laser deposition technique, and the effects of growth temperature are analyzed. Transport properties reveal a large electronic mobility and a non-linear Hall effect at low temperature. In addition, a cross-over from a semiconducting state at high-temperature to a metallic state at low-temperature is observed, with a clear enhancement of the metallic character as the growth temperature increases. Optical absorption measurements combined with the two-bands analysis of the Hall effect show that the metallicity is induced by the diffusion of oxygen vacancies in the SrTiO3 substrate. These results allow to understand that the film/substrate heterostructure behaves as an original semiconducting-metallic parallel resistor, and electronic transport properties are consistently explained.
description: Improved version as accepted in Journ Phys: Cond Mat. Additional Optical measurements are presented
Multiple-line inference of selection on quantitative traits
Creators: name: Riedel, Nico
name: Khatri, Bhavin S.
name: Lässig, Michael
name: Berg, Johannes
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Trait differences between species may be attributable to natural selection. However, quantifying the strength of evidence for selection acting on a particular trait is a difficult task. Here we develop a population-genetic test for selection acting on a quantitative trait which is based on multiple-line crosses. We show that using multiple lines increases both the power and the scope of selection inference. First, a test based on three or more lines detects selection with strongly increased statistical significance, and we show explicitly how the sensitivity of the test depends on the number of lines. Second, a multiple-line test allows to distinguish different lineage-specific selection scenarios. Our analytical results are complemented by extensive numerical simulations. We then apply the multiple-line test to QTL data on floral character traits in plant species of the Mimulus genus and on photoperiodic traits in different maize strains, where we find a signatures of lineage-specific selection not seen in a two-line test.
description: 21 pages, 11 figures; to appear in Genetics
Kopf hoch! Embodiment in der schulsozialarbeiterischen Beratung
Creators: name: Wyss, Nora
Publisher: name: Zenodo
Year: 2022

description: In der schulsozialarbeiterischen Beratungspraxis wird die Möglichkeit, die körperlichen Ressourcen in den Beratungsprozess einzubeziehen, noch wenig genutzt. Die vorliegende Bachelorarbeit befasst sich mit Embodiment – dem Zusammenspiel von Körper und Geist – in der schulsozialarbeiterischen Beratung. Die Autorin Nora Wyss beschäftigt sich mit der Frage, welche Möglichkeiten Schulsozialarbeitende nutzen können, um Embodiment in der Beratung zu integrieren, und welche Voraussetzungen es gibt, damit in der Praxis mit dem präsentierten Ansatz gearbeitet werden kann. Weiter werden das Potenzial, die Herausforderungen und die Grenzen von Embodiment in der schulsozialarbeiterischen Beratung aufgezeigt. Die Forschungsfrage wurde mittels einer qualitativen Sozialforschung beantwortet; diese wurde anhand von Leitfadeninterviews durchgeführt. Dafür wurden drei Expertinnen befragt, welche sowohl Erfahrungen in der Schulsozialarbeit als auch in der Arbeit mit Embodiment haben. Die Ergebnisse machen sichtbar, wie Schulsozialarbeitende Embodiment in unterschiedlichster Art für die Beratung nutzen und dass dies ein gewisses Mass an Selbsterfahrung voraussetzt. Weiter wird ersichtlich, dass der Embodiment-Ansatz für die schulsozialarbeiterische Beratung insbesondere hinsichtlich der psychosozialen Entwicklung der Schüler*innen grosses Potenzial hat. In den Schlussfolgerungen wird deutlich, weshalb besonders die Schulsozialarbeit mit Embodiment arbeiten sollte und was dazu beitragen könnte, damit vermehrt nach diesem Ansatz gearbeitet würde. Ausserdem werden Empfehlungen abgegeben, wie Schulsozialarbeitende Embodiment in der Praxis integrieren können.
description: + Code Diss LU: hslusa basa be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2022 + NL-Code: NLLUHSA202209
Coverage versus Supply Cost in Facility Location: Physics of Frustrated Spin Systems
Creators: name: Yeung, Chi Ho
name: Wong, K. Y. Michael
name: Li, Bo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A comprehensive coverage is crucial for communication, supply and transportation networks, yet it is limited by the requirement of extensive infrastructure and heavy energy consumption. Here we draw an analogy between spins in antiferromagnet and outlets in supply networks, and apply techniques from the studies of disordered systems to elucidate the effects of balancing the coverage and supply costs on the network behavior. A readily applicable, coverage optimization algorithm is derived. Simulation results show that magnetized and antiferromagnetic domains emerge and coexist to balance the need for coverage and energy saving. The scaling of parameters with system size agrees with the continuum approximation in two dimensions and the tree approximation in random graphs. Due to frustration caused by the competition between coverage and supply cost, a transition between easy and hard computation regimes is observed. We further suggest a local expansion approach to greatly simplify the message updates which shed light on simplifications in other problems.
description: 15 pages, 14 figures
Vertrauenspersonen für Pflegekinder: Rechtliche Grundlagen und deren Umsetzung durch die Soziale Arbeit
Creators: name: Stahl, Marianne
Publisher: name: Zenodo
Year: 2022

description: Die Verordnung über die Aufnahme von Pflegekindern besagt seit dem 1. Januar 2013, dass die Kindesschutzbehörden dafür sorgen müssen, jedem Pflegekind eine Vertrauensperson zuzuweisen. In der vorliegenden Bachelorarbeit mit dem Titel Vertrauenspersonen für Pflegekinder – Rechtliche Grundlagen und deren Umsetzung durch die Soziale Arbeit beantwortet Marianne Stahl die Frage, inwiefern diese gesetzgeberische Bestimmung durch die Kindesschutzbehörde und die Sozialabklärenden in der Deutschschweiz umgesetzt wird. Es ist das Ziel, einen Einblick für Fachpersonen der Sozialen Arbeit und Behörden zu generieren, um diese bestenfalls dazu zu animieren, die Einsetzung der Vertrauenspersonen im Kindesschutz weiter zu fördern. Im einleitenden Literaturteil wird auf die sozialarbeiterischen sowie die rechtlichen Aspekte hinsichtlich der Vertrauensperson eingegangen. Des Weiteren wurden anhand qualitativer Experteninterviews vier Behördenmitglieder zu ihren Erfahrungen mit dem Einsetzen der Vertrauenspersonen befragt. Es zeigte sich, dass Vertrauenspersonen in der Praxis kaum bedacht werden, weil deren Einrichtung zum einen noch Verbesserungspotenzial aufweist. Zum anderen fehlen Wissen über die Rolle der Vertrauenspersonen sowie Klarheit über die Umsetzungsmodalitäten. Damit eine Umsetzung in der Praxis gelingen kann, wird aus Sicht der Autorin vor allem mehr Deutlichkeit bezüglich der Realisierung benötigt.
description: + Code Diss LU: hslusa basa be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2022 + NL-Code: NLLUHSA202209
Detection of magnetic circular dichroism on the two-nanometer scale
Creators: name: Schattschneider, Peter
name: Stöger-Pollach, Michael
name: Rubino, Stefano
name: Sperl, Matthias
name: Hurm, Christian
name: Zweck, Josef
name: Rusz, Ján
Publisher: name: Universität Regensburg
Year: 2008
Subjects: subject: 530 Physik

description: Magnetic circular dichroism (MCD) is a standard technique for the study of magnetic properties of materials in synchrotron beamlines. We present here a scattering geometry in the transmission electron microscope through which MCD can be observed with unprecedented spatial resolution. A convergent electron beam is used to scan a cross sectional preparation of a Fe/Au multilayer sample. Differences in the energy-loss spectra induced by the magnetic moments of the Fe atoms can be resolved with a resolution of better than 2 nm. This is a breakthrough achievement when compared both to the previous energy-loss MCD resolution (200 nm) or the best x-ray MCD experiments (approximately 20 nm).
Model Reduction by Moment Matching for Linear Switched Systems
Creators: name: Bastug, Mert
name: Petreczky, Mihaly
name: Wisniewski, Rafael
name: Leth, John
Publisher: name: arXiv
Year: 2014
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Two moment-matching methods for model reduction of linear switched systems (LSSs) are presented. The methods are similar to the Krylov subspace methods used for moment matching for linear systems. The more general one of the two methods, is based on the so called "nice selection" of some vectors in the reachability or observability space of the LSS. The underlying theory is closely related to the (partial) realization theory of LSSs. In this paper, the connection of the methods to the realization theory of LSSs is provided, and algorithms are developed for the purpose of model reduction. Conditions for applicability of the methods for model reduction are stated and finally the results are illustrated on numerical examples.
description: Sent for publication in IEEE TAC, on October 2014
A hybrid swarm-based algorithm for single-objective optimization problems involving high-cost analyses
Creators: name: Ampellio, Enrico
name: Vassio, Luca
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: Artificial Intelligence (cs.AI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In many technical fields, single-objective optimization procedures in continuous domains involve expensive numerical simulations. In this context, an improvement of the Artificial Bee Colony (ABC) algorithm, called the Artificial super-Bee enhanced Colony (AsBeC), is presented. AsBeC is designed to provide fast convergence speed, high solution accuracy and robust performance over a wide range of problems. It implements enhancements of the ABC structure and hybridizations with interpolation strategies. The latter are inspired by the quadratic trust region approach for local investigation and by an efficient global optimizer for separable problems. Each modification and their combined effects are studied with appropriate metrics on a numerical benchmark, which is also used for comparing AsBeC with some effective ABC variants and other derivative-free algorithms. In addition, the presented algorithm is validated on two recent benchmarks adopted for competitions in international conferences. Results show remarkable competitiveness and robustness for AsBeC.
description: 19 pages, 4 figures, Springer Swarm Intelligence
Die nachhaltigen Wirkungen des Familienratsverfahrens in der Retroperspektive: Nachhaltige Wirkfaktoren des Familienrats
Creators: name: Tognarelli, Olivia
name: Schmid, Fabio
Publisher: name: Zenodo
Year: 2022

description: Das aus Neuseeland stammende Verfahren Familienrat hat sich bereits in verschiedenen Ländern etabliert. In der Schweiz findet dieses seit 2009 Anwendung. Bereits gibt es auf die Schweiz bezogene Forschungen zu diesem Familienrat. Jedoch fehlt eine Gegenüberstellung der theoretischen Wirkung des Familienrates mit der praktischen Erfahrung von in der Schweiz praktizierenden Familienratskoordinator*innen. Diese Bachelorarbeit untersucht basierend auf theoretischen Ansätzen der Sozialen Arbeit, welche Faktoren des Verfahrens eine nachhaltige Veränderung in einem Familiensystem begünstigen. Die Faktoren aus den theoretischen Grundlagen werden den von Expert*innen genannten Faktoren aus der Praxis gegenübergestellt, welche mittels Leitfadeninterviews gewonnen worden sind. Dadurch konnten Differenzen und Abweichungen von den in der Theorie genannten und in der Praxis erkannten Faktoren aufgezeigt und daraus Empfehlungen für die Praxis abgeleitet werden. Die Ergebnisse dieser Arbeit können Fachpersonen dazu dienen, sich noch weiter auf Faktoren zu sensibilisieren, welche das Gelingen des Familienrates und vor allem dessen nachhaltige Wirkung begünstigen. Die Ergebnisse dieser Arbeit zeigen besonders die Wichtigkeit der Rolle der Auftraggebenden auf. So ist deren Wissen zum Verfahren, deren Haltung gegenüber der betroffenen Familie sowie deren Anwesenheit bei der Planabnahme zentral für das Gelingen des Familienrates und dessen nachhaltige Wirkung. Auch die Herausforderung, das richtige Netzwerk zu finden, wurde erkannt. So ist die Netzwerkerweiterung das Herzstück des Familienrates, in welchem darauf geachtet werden muss, dass sowohl ein grosses als auch unterstützendes Netzwerk erschlossen wird.
description: + Code Diss LU: hslusa basa be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2022 + NL-Code: NLLUHSA202209
Photometric type Ia supernova surveys in narrow band filters
Creators: name: Xavier, Henrique S.
name: Abramo, L. Raul
name: Sako, Masao
name: Benítez, Narciso
name: Calvão, Maurício O.
name: Ederoclite, Alessandro
name: Marín-Franch, Antonio
name: Molino, Alberto
name: Reis, Ribamar R. R.
name: Siffert, Beatriz B.
name: Sodré, Laerte
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We study the characteristics of a narrow band type Ia supernova survey through simulations based on the upcoming Javalambre Physics of the accelerating universe Astrophysical Survey (J-PAS). This unique survey has the capabilities of obtaining distances, redshifts, and the SN type from a single experiment thereby circumventing the challenges faced by the resource-intensive spectroscopic follow-up observations. We analyse the flux measurements signal-to-noise ratio and bias, the supernova typing performance, the ability to recover light curve parameters given by the SALT2 model, the photometric redshift precision from type Ia supernova light curves and the effects of systematic errors on the data. We show that such a survey is not only feasible but may yield large type Ia supernova samples (up to 250 supernovae at $z<0.5$ per month of search) with low core collapse contamination ($\sim 1.5$ per cent), good precision on the SALT2 parameters (average $σ_{m_B}=0.063$, $σ_{x_1}=0.47$ and $σ_c=0.040$) and on the distance modulus (average $σ_μ=0.16$, assuming an intrinsic scatter $σ_{\mathrm{int}}=0.14$), with identified systematic uncertainties $σ_{\mathrm{sys}}\lesssim 0.10 σ_{\mathrm{stat}}$. Moreover, the filters are narrow enough to detect most spectral features and obtain excellent photometric redshift precision of $σ_z=0.005$, apart from $\sim$ 2 per cent of outliers. We also present a few strategies for optimising the survey's outcome. Together with the detailed host galaxy information, narrow band surveys can be very valuable for the study of supernova rates, spectral feature relations, intrinsic colour variations and correlations between supernova and host galaxy properties, all of which are important information for supernova cosmological applications.
description: 20 pages, 12 tables and 26 figures. Version accepted by MNRAS, with results slightly different from previous one
Modelling [CI] emission from turbulent molecular clouds
Creators: name: Glover, Simon C. O.
name: Clark, Paul C.
name: Micic, Milica
name: Molina, Faviola
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use detailed numerical simulations of the coupled chemical, thermal and dynamical evolution of the gas in a turbulent molecular cloud to study the usefulness of the [CI] 609 micron and 370 micron fine structure emission lines as tracers of cloud structure. Emission from these lines is observed throughout molecular clouds, and yet the question of what we can learn from them about the physics of the clouds remains largely unexplored. We show that the fact that [CI] emission is widespread within molecular clouds is a simple consequence of the fact that the clouds are dominated by turbulent motions. Turbulence creates large density inhomogeneities, allowing radiation to penetrate deeply into the clouds. As a result, [CI] emitting gas is found throughout the cloud, rather than being concentrated at the edges. We examine how well we can use [CI] emission to trace the structure of the cloud, and show that the integrated intensity of the 609 micron line traces column density accurately over a wide range of visual extinctions. For extinctions greater than a few, [CI] and 13CO both perform well, but [CI] becomes a superior tracer of column densities for visual extinctions A_V <= 3 We have also studied the distribution of [CI] excitation temperatures in the gas, and show that these are typically smaller than the kinetic temperature, indicating that most of the carbon atoms are not in local thermodynamic equilibrium. We discuss how best to determine T_ex from observations of the [CI] lines, and how to use these values to estimate the column density of neutral atomic carbon. We show that even in the best case, we tend to systematically underestimate the atomic carbon content of the gas. Our results suggest that observationally-derived estimates of the atomic carbon content of real GMCs could be in error by as much as a factor of two.
description: 23 pages, 22 figures. Updated treatment of 13CO plus other minor changes to match version accepted by MNRAS
On the probabilistic Cauchy theory of the cubic nonlinear Schrödinger equation on $\mathbb R^d$, $d \geq 3$
Creators: name: Bényi, Árpád
name: Oh, Tadahiro
name: Pocovnicu, Oana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the Cauchy problem of the cubic nonlinear Schrödinger equation (NLS) on $\mathbb R^d$, $d \geq 3$, with random initial data and prove almost sure well-posedness results below the scaling critical regularity $s_\text{crit} = \frac{d-2}{2}$. More precisely, given a function on $\mathbb R^d$, we introduce a randomization adapted to the Wiener decomposition, and, intrinsically, to the so-called modulation spaces. Our goal in this paper is three-fold. (i) We prove almost sure local well-posedness of the cubic NLS below the scaling critical regularity along with small data global existence and scattering. (ii) We implement a probabilistic perturbation argument and prove `conditional' almost sure global well-posedness for $d = 4$ in the defocusing case, assuming an a priori energy bound on the critical Sobolev norm of the nonlinear part of a solution; when $d \ne 4$, we show that conditional almost sure global well-posedness in the defocusing case also holds under an additional assumption of global well-posedness of solutions to the defocusing cubic NLS with deterministic initial data in the critical Sobolev regularity. (iii) Lastly, we prove global well-posedness and scattering with a large probability for initial data randomized on dilated cubes.
description: 52 pages. Minor modifications
Relative expanders
Creators: name: Arzhantseva, Goulnara
name: Tessera, Romain
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 46B85, 20F69, 22D10, 20E22

description: We exhibit a finitely generated group $G$ and a sequence of finite index normal subgroups $N_n\trianglelefteq G$ such that for every finite generating subset $S\subseteq G$, the sequence of finite Cayley graphs $(G/N_n, S)$ does not coarsely embed into any $L^p$-space for $1\leqslant p
description: 24 pages, new title, Theorem 1.3 is new, more details in proofs of Lemma 2.5 and Theorem 7.3, final revised version
NWM GWR code and data.rar
Creators: name: He, Jingyi
name: Wei, Ye
name: Yu, Bailang
Publisher: name: figshare
Year: 2023
Subjects: Geoinformatics not elsewhere classified
Urban geography

description: Dataset and code used in a journal paper entitled Geographically weighted regression based on a network weight matrix: a case study using urbanization driving force data in China , published in the International Journal of Geographical Information Science.
 Abstract: Geographically weighted regression (GWR) is a classical modeling method for dealing with spatial non-stationarity. It incorporates the distance decay effect in space to fit local regression models, where distance is defined as Euclidean distance. Although this definition has been expanded, it remains focused on physical distance. However, in the era of globalization and informatization, where the phenomenon of remotely close association is common, physical distance may not reflect real spatial proximity, and GWR based on physical distance has clear limitations. This paper proposes a geographically weighted regression based on a network weight matrix (NWM GWR) model. This does not rely on geographical location modeling; instead, it uses network distance to measure the proximity between two regions and weights observations by improving the kernel function to achieve distance attenuation. We adopt the population mobility network to establish a network weight matrix, modeling China’s urbanization and its multidimensional driving factors using network autocorrelation and NWM GWR methods. Results show that the NWM GWR model has more accurate fit and better stability than ordinary least squares and GWR models, and better reveals relationships between variables, which makes it suitable for modeling economic and social systems more broadly.
Additional file 5 of In pursuit of a better transition to selected residencies: a quasi-experimental evaluation of a final year of medical school dedicated to the acute care domain
Creators: name: Jonker, Gersten
name: Booij, Eveline
name: Vernooij, Jacqueline E. M.
name: Kalkman, Cor J.
name: ten Cate, Olle
name: Hoff, Reinier G.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5.
Bridging Fermionic and Bosonic Short Range Entangled States
Creators: name: You, Yi-Zhuang
name: Bi, Zhen
name: Rasmussen, Alex
name: Cheng, Meng
name: Xu, Cenke
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we construct bosonic short range entangled (SRE) states in all spatial dimensions by coupling a $Z_2$ gauge field to fermionic SRE states with the same symmetries, and driving the $Z_2$ gauge field to its confined phase. We demonstrate that this approach allows us to construct many examples of bosonic SRE states, and we demonstrate that the previous descriptions of bosonic SRE states such as the semiclassical nonlinear sigma model field theory and the Chern-Simons field theory can all be derived using the fermionic SRE states.
description: 7 pages
Ein sinnerfülltes Leben im Alter: Eine kleine Forschung über Lebensqualität im Alter im stationären Setting
Creators: name: Rey, Daniela
name: Wirz, Barbara
Publisher: name: Zenodo
Year: 2022

description: Die vorliegende Bachelorarbeit wurde aufbauend auf dem Projektbericht von Karin A. Stadelmann und Rita Kessler «Gute Betreuung im Alter – Sozialpädagogik konkret» verfasst (2021). Darin gehen sie auf die vier Handlungsprinzipien der Sozialpädagogik (Teilhabe und Partizipation, Selbstbestimmung und Empowerment, Lebenswelt und Lebensbewältigung, Lebensqualität) ein. Daraus resultieren einige Indikatoren, die für ein sinnerfülltes Leben erfüllt werden müssen. Mit der vorliegenden Forschung möchten die Autorinnen, diese Indikator en überprüfen. Weil diese Indikatoren sehr umfangreich sind, haben die Autorinnen den Fokus auf das Handlungsprinzip der Lebensqualität gelegt. Sie haben sich gefragt, welche Aspekte subjektiv wichtig sind, um im Alter eine hohe Lebensqualität beizubehalten. Weiter wird dargestellt wie die Sozialpädagogik im stationären Bereich des Alters unterstützend wirken kann und welche Tätigkeitsfelder sich daraus eröffnen. Die Autorinnen wählten für ihre Forschungsarbeit einen Methodenmix aus qualitativen und quantitativen Forschungsmethoden. Sie führten fünf Leitfadeninterviews mit Bewohnenden des Alters- und Pflegeheims Huwel in Kerns durch. Zusätzlich zu diesem Leitfadeninterview wurde ein Fragebogen erstellt, der während des Interviews ausgefüllt wurde. Die daraus resultierenden Forschungsergebnisse wurden auf der Grundlage der ausgearbeiteten Theorien, diskutiert und interpretiert. Die Ergebnisse bestätigen, dass die Lebensqualität und die damit verbundene Lebenszufriedenheit etwas höchst Subjektives ist. Abgerundet wird die vorliegende Forschungsarbeit mit einigen Schlussfolgerungen für die Praxis der Sozialpädagogik und der persönlichen Stellungnahme der Autorinnen.
description: + Code Diss LU: hslusa basp be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2022 + NL-Code: NLLUHSA202209
LDB division algebras
Creators: name: Pazzis, Clément de Seguins
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17A35, 11E88, 15A66

description: An LDB division algebra is a triple $(A,\star,\bullet)$ in which $\star$ and $\bullet$ are regular bilinear laws on the finite-dimensional non-zero vector space $A$ such that $x \star (x \bullet y)$ is a scalar multiple of $y$ for all vectors $x$ and $y$ of $A$. This algebraic structure has been recently discovered in the study of the critical case in Meshulam and \v Semrl's estimate of the minimal rank in non-reflexive operator spaces. In this article, we obtain a constructive description of all LDB division algebras over an arbitrary field together with a reduction of the isotopy problem to the similarity problem for specific types of quadratic forms over the given field. In particular, it is shown that the dimension of an LDB division algebra is always a power of $2$, and that it belongs to $\{1,2,4,8\}$ if the characteristic of the underlying field is not $2$.
description: 35 pages
Crucial tests of macrorealist and semi-classical gravity models with freely falling mesoscopic nanospheres
Creators: name: Colin, Samuel
name: Durt, Thomas
name: Willox, Ralph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, several proposals have been made to test the quantum superposition principle in the mesoscopic regime. Most of these tests consist of a careful measurement of the loss of interference due to decoherence. Here we consider, instead, the spread in position of a freely falling nanosphere. We study in depth the dependence of this spread on self-gravity in the presence of decoherence (exotic and non-exotic). We show that the influence of self-gravity is robust in the presence of weak decoherence, and quantify this robustness by introducing a new parameter, the critical decoherence, aimed at estimating the critical value above which self-gravity is overwhelmed by decoherence. We also emphasise the crucial role played by the spread of the initial wave packet for the sensitivity of free-fall experiments to decoherence.
description: Abridged and modified version accepted for publication in Physical Review A. 17 pages, 6 figures
The puzzle of the formation of T8 dwarf Ross 458c
Creators: name: Gaarn, Josefine
name: Burningham, Ben
name: Faherty, Jacqueline K.
name: Visscher, Channon
name: Marley, Mark S.
name: Gonzales, Eileen C.
name: Calamari, Emily
name: Gagliuffi, Daniella Bardalez
name: Lupu, Roxana
name: Freedman, Richard
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: At the lowest masses, the distinction between brown dwarfs and giant exoplanets is often blurred and literature classifications rarely reflect the deuterium burning boundary. Atmospheric characterisation may reveal the extent to which planetary formation pathways contribute to the population of very-low mass brown dwarfs, by revealing if their abundance distributions differ from those of the local field population or, in the case of companions, their primary stars. The T8 dwarf Ross 458c is a possible planetary mass companion to a pair of M dwarfs, and previous work suggests that it is cloudy. We here present the results of the retrieval analysis of Ross 458c, using archival spectroscopic data in the 1.0 to 2.4 micron range. We test a cloud free model as well as a variety of cloudy models and find that the atmosphere of Ross 458c is best described by a cloudy model (strongly preferred). The CH4/H2O is higher than expected at 1.97 +0.13 -0.14. This value is challenging to understand in terms of equilibrium chemistry and plausible C/O ratios. Comparisons to thermochemical grid models suggest a C/O of ~ 1.35, if CH4 and H2O are quenched at 2000 K, requiring vigorous mixing. We find a [C/H] ratio of +0.18, which matches the metallicity of the primary system, suggesting that oxygen is missing from the atmosphere. Even with extreme mixing, the implied C/O is well beyond the typical stellar regime, suggesting a either non-stellar formation pathway, or the sequestration of substantial quantities of oxygen via hitherto unmodeled chemistry or condensation processes.
description: 16 pages, 9 figures
Revisiting Farradane's relational indexing in a consumer health context
Creators: name: Campbell, Grant
Publisher: name: Zenodo
Year: 2011
Subjects: subject: Farradane, Jason
subject: Health information
subject: https://iskouk.org/subjects/25BWYBCX
subject: https://iskouk.org/subjects/7QSL3R6N

description: Farradane’s relational indexing system uses a psychological paradigm to establish a matrix of relationships between concepts, based on axes of association and discrimination. While the system has never been widely adopted in indexing, it provides a useful basis for the discourse analysis of consumer health information, particularly in relation to Alzheimer’s Disease. Using Farradane’s relational operators to analyze textual information provided both by medical professionals and by patients suffering from Alzheimer’s Disease, this study found that gaps in medical knowledge about the causes of Alzheimer’s manifest themselves in the matrix as a tension between association and functional dependence. The testimony of Alzheimer’s patients, on the other hand, showed a tension between the self-activity and dimensional relationships: between intransitive activities, on the one hand, and a strong desire to tell the stories of their lives. Findings of the study suggest that Farradane’s relational system has the potential to identify important gaps between professional and consumer health information vocabularies, and to enhance the embedded relationships in consumer health Web information systems.
Geometric generators for braid-like groups
Creators: name: Allcock, Daniel
name: Basak, Tathagata
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary: 57M05, Secondary: 20F36, 52C35, 32S22

description: We study the problem of finding generators for the fundamental group G of a space of the following sort: one removes a family of complex hyperplanes from n dimensional complex vector space, or n dimensional complex hyperbolic space, or the Hermitian symmetric space for O(2,n), and then takes the quotient by a discrete group $PΓ$. The classical example is the braid group, but there are many similar "braid-like" groups that arise in topology and algebraic geometry. Our main result is that if $PΓ$ contains reflections in the hyperplanes nearest the basepoint, and these reflections satisfy a certain property, then G is generated by the analogues of the generators of the classical braid group. We apply this to obtain generators for G in a particular intricate example in complex hyperbolic space of dimension 13. The interest in this example comes from a conjectured relationship between this braid-like group and the monster simple group M, that gives geometric meaning to the generators and relations in the Conway-Simons presentation of $(M \times M):2$.
description: 24 pages, 5 figures. Revised version 2: minor typos corrected, expository material added, bibliography updated
Klassismus und Teilhabe: Eine Reflexion zur Reproduktion klassistischer Strukturen in nahräumlichen Entwicklungsprozessen
Creators: name: Reich, Melanie
Publisher: name: Zenodo
Year: 2022

description: Die Bachelorarbeit «Klassismus und soziale Teilhabe. Eine Reflexion zur Reproduktion klassistischer Strukturen in nahräumlichen Entwicklungsprozessen» von Melanie Reich beschäftigt sich mit gesellschaftlichem Klassismus und zeigt hierbei auf, dass klassistische Diskriminierungsstrukturen auf individueller, kultureller und institutioneller Ebene die soziale Teilhabe von sozioökonomisch benachteiligten Personen signifikant einschränken. Vor diesem Hintergrund zeigt sich, dass Betroffene von klassistischen Benachteiligungen seltener Partizipationsangebote wahrnehmen, was sich auch auf die nahräumlichen Partizipations- und Entwicklungsprozesse der Soziokulturellen Animation auswirkt. Daraus ergibt sich, dass die soziale und ökonomische Positionierung eines Individuums zu einem Indikator für die Nutzung und Gestaltung des öffentlichen Nahraums und folglich der eigenen Lebenswelt werden. In diesem Kontext stellt sich die vorliegende Bachelorarbeit die Frage, ob Handlungskonzepte der Soziokulturellen Animation, welche in nahräumlichen Entwicklungen Anwendung finden, genügend Sensibilität für diese Teilhabebeschränkungen in Form von Klassismus aufweisen. In diesem Zusammenhang werden die Netzwerkorientierung und die Schlüsselpersonenarbeit, als zwei relevante Handlungskonzepte analysiert und einige Aspekte aus antiklassistischer Perspektive problematisiert. Schlussfolgernd werden daraus Handlungsempfehlungen abgeleitet, die zu einer antiklassistischen Professionsausgestaltung der Sozialen Arbeit beitragen sollen.
description: + Code Diss LU: hslusa bask be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Soziokultur, 2022 + NL-Code: NLLUHSA202209
Ain-El-Turck 037
Creators: name: Corsner, Private.
Publisher: name: Galter Health Science Library & Learning Center
Year: 2019

description: July 43 MM-MBS-COR-43-7122 Oran, N.A. 12th Gen. Hosp. Surgical Service. Top row, Left to Right - Lt. John E. Blair, Capt. George B. Bradburn, Maj. William H. Droegemueller, Lt. Benjamin F. Lounsbury, Capt. Newton C. Mead, Maj. John Martin, Capt J.E. Karabin, Capt. Albert M. Jones, Capt. S. Kaman, Capt. Frederick C. Hoebel. FRONT ROW - Lt. Paul A. Raber, Maj. H.P. Jones, Maj. Frederick Lieberthal, Capt. Hiram T. Langston, Lt. Col. Michael L. Mason, Maj. J.H. Mohardt, Maj. Harvey S. Allen, Maj. Byford F. Haskett, Maj. Benjamin Boshes. Photographer - Pvt. Corsner
Pairing correlations in a trapped one-dimensional Fermi gas
Creators: name: Kudla, Stephen
name: Gautreau, Dominique M.
name: Sheehy, Daniel E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We use a BCS-type variational wavefunction to study attractively-interacting quasi one-dimensional (1D) fermionic atomic gases, motivated by cold-atom experiments that access the 1D regime using an anisotropic harmonic trapping potential (with trapping frequencies $ω_x = ω_y \gg ω_z$) that confines the gas to a cigar-shaped geometry. To handle the presence of the trap along the $z$-direction, we construct our variational wavefunction from the harmonic oscillator Hermite functions that are the eigenstates of the single-particle problem. Using an analytic determination of the effective interaction among harmonic oscillator states along with a numerical solution of the resulting variational equations, we make specific experimental predictions for how pairing correlations would be revealed in experimental probes like the local density and the momentum correlation function.
description: 8 pages, 6 figures. Published in Phys. Rev. A
Identifying the character of ferromagnetic Mn in epitaxial Fe/(Ga,Mn)As heterostructures
Creators: name: Sperl, Matthias
name: Maccherozzi, F.
name: Borgatti, F.
name: Verna, A.
name: Rossi, G.
name: Soda, M.
name: Schuh, Dieter
name: Bayreuther, Günther
name: Wegscheider, Werner
name: Cezar, J. C.
name: Brookes, N. B.
name: Back, Christian
name: Panaccione, G.
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: 530 Physik

description: We demonstrate that the growth of Fe/(Ga,Mn)As heterointerfaces can be efficiently controlled by epitaxy and that robust ferromagnetism of the interfacial Mn atoms is induced at room temperature by the proximity effect. X-ray magnetic circular dichroism and x-ray resonant reflectivity data, supported by theoretical calculations, were used to monitor both temperature and magnetic field dependence of the Mn magnetic moment in the semiconducting host. We identify distinct Mn populations, each of them with specific magnetic character.
Assessing the state and central governmental policy context of hypertension and diabetes in Pubjab, India: a policy document analysis
Creators: name: Srinivasapura Venkateshmurthy, Nikhil
Publisher: name: Galter Health Science Library & Learning Center
Year: 2019

description: What are the policies in place, both at central and state (Punjab) governmental levels, to diagnose, prevent, treat, and control hypertension and diabetes among adult Indians aged 30 years and above?
Black holes as bosonic Gaussian channels
Creators: name: Bradler, Kamil
name: Adami, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify the quantum channels corresponding to the interaction of a Gaussian quantum state with an already formed Schwarzschild black hole. Using recent advances in the classification of one-mode bosonic Gaussian channels we find that (with one exception) the black hole Gaussian channels lie in the non-entanglement breaking subset of the lossy channels C(loss), amplifying channels C(amp) and classical-noise channels B2. We show that the channel parameters depend on the black hole mass and the properties of the potential barrier surrounding it. This classification enables us to calculate the classical and quantum capacity of the black hole and to estimate the quantum capacity where no tractable quantum capacity expression exists today. We discuss these findings in the light of the black hole quantum information loss problem.
description: v3: extended discussion, to appear in Physical Review D
Twisted Heisenberg chain and the six-vertex model with DWBC
Creators: name: Galleas, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work we establish a relation between the six-vertex model with Domain Wall Boundary Conditions (DWBC) and the $XXZ$ spin chain with anti-periodic twisted boundaries. More precisely, we demonstrate a formal relation between the zeroes of the partition function of the six-vertex model with DWBC and the zeroes of the transfer matrix eigenvalues associated with the six-vertex model with a particular non-diagonal boundary twist.
description: 17 pages. v2: 20 pages, presentation modified, details of derivations added, references added. v3: typos fixed, minor changes, accepted for publication in JSTAT
Nichtbezug von Ergänzungsleistungen zur AHV: Erklärungsansätze und Handlungsmöglichkeit von Seiten der Sozialen Arbeit
Creators: name: Regez, Claudia Lea
Publisher: name: Zenodo
Year: 2022

description: In der Schweiz stellte man Ende des 19. Jahrhunderts fest, dass die Unterstützung durch Familie, Kirche und die damalige Altersfürsorge nicht ausreicht, um armutsbetroffene Betagte zu finanzieren. Nach längeren Diskussionen und mehreren Abstimmungen wurde 1948 schliesslich die AHV eingeführt, um älteren Menschen ein würdiges Leben zu gewährleisten. Bald merkte man, dass Pensionierte trotz der AHV-Rente nicht genügend Geld zur Verfügung hatten (die PK war erst ab den 80er-Jahren Pflicht und wurde noch nicht in allen Betrieben bezahlt), weshalb 1966 die Ergänzungsleistungen eingeführt wurden, um der Altersarmut entgegenzuwirken. Auch heute sind die EL als Teil der ersten Säule des schweizerischen Dreisäulensystems da, um die Altersarmut aufzuhalten, jedoch wurde festgestellt, dass viele Anspruchsberechtige auf die EL verzichten. Auf der Basis von gesetzlichen Grundlagen und der vorhandenen empirischen Forschungen zum Nichtbezug von Bedarfsleistungen wird in dieser Forschungsarbeit das Thema Nichtbezug von Ergänzungsleistungen untersucht. Anhand von Interviews mit Expert:innen aus der Beratung im Altersbereich wird der Frage nachgegangen, weshalb sich Anspruchsberechtigte für einen Nichtbezug von EL entscheiden. Aus der Verknüpfung der Grundlagen mit den Forschungsergebnissen werden schliesslich Handlungsansätze für die Soziale Arbeit formuliert. Als Schlussfolgerung wurde festgestellt, dass es wichtig ist, Beratungsangebote gut zu koordinieren und individuelle Begleitungen mit Bezugspersonen anzubieten. Die Haltung der Beratenden und ein solides Wissen zu den Abläufen, insbesondere zu den Sozialversicherungen sind förderlich, um Anspruchsberechtigte zu einer EL-Anmeldung zu bewegen. Zudem wurde bestätigt, was bereits in früheren Untersuchungen festgestellt wurde: Um mehr Anspruchsberechtigte zu motivieren, sich für EL anzumelden, könnte das System geändert werden und die Betroffenen anhand der Steuerdaten identifiziert und direkt angeschrieben werden, wie es bereits bei der individuellen Prämienverbilligung geschieht.
description: + Code Diss LU: hslusa basa be + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit, 2022 + NL-Code: NLLUHSA202209
A note on the puzzling spindown behavior of the Galactic center magnetar SGR J1745-2900
Creators: name: Tong, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: SGR J1745$-$2900 is a magnetar near the Galactic center. X-ray observations of this source found a decreasing X-ray luminosity accompanied by an enhanced spindown rate. This negative correlation between X-ray luminosity and spindown rate is hard to understand. The wind braking model of magnetars is employed to explain this puzzling spindown behavior. During the release of magnetic energy of magnetars, a system of particles may be generated. Some of these particles remain trapped in the magnetosphere and may contribute to the X-ray luminosity. The rest of the particles can flow out and take away the rotational energy of the central neutron star. A smaller polar cap angle will cause the decrease of X-ray luminosity and enhanced spindown rate of SGR J1745$-$2900. This magnetar is expected to have a maximum spindown rate shortly.
description: 7 pages, 1 figure; accepted by Research in Astronomy and Astrophysics
Deciding conjugacy in sylvester monoids and other homogeneous monoids
Creators: name: Cain, Alan J.
name: Malheiro, António
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M10 (Primary), 05C05, 03D10, 20M05 (Secondary)

description: We give a combinatorial characterization of conjugacy in the sylvester monoid (the monoid of binary search trees), showing that conjugacy is decidable for this monoid. We then prove that conjugacy is undecidable in general for homogeneous monoids and even for multihomogeneous monoids.
description: 16 pages, 4 figures. Minor revisions and improvements
Combinatorial Quantum Field Theory and Gluing Formula for Determinants
Creators: name: Reshetikhin, Nicolai
name: Vertman, Boris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58J52, 81T27

description: We define the combinatorial Dirichlet-to-Neumann operator and establish a gluing formula for determinants of discrete Laplacians using a combinatorial Gaussian quantum field theory. In case of a diagonal inner product on cochains we provide an explicit local expression for the discrete Dirichlet-to-Neumann operator. We relate the gluing formula to the corresponding Mayer-Vietoris formula by Burghelea, Friedlander and Kappeler for zeta-determinants of analytic Laplacians, using the approximation theory of Dodziuk. Our argument motivates existence of gluing formulas as a consequence of a gluing principle on the discrete level.
description: 26 pages, accepted for publication at Letters in Math. Physics