cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Genuine multipartite entanglement in a one-dimensional Bose-Hubbard model with frustrated hopping
Creators: name: Roy, Sudipto Singha
name: Carl, Leon
name: Hauke, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Frustration and quantum entanglement are two exotic quantum properties in quantum many-body systems. However, despite several efforts, an exact relation between them remains elusive. In this work, we explore the relationship between frustration and quantum entanglement in a physical model describing strongly correlated ultracold bosonic atoms in optical lattices. In particular, we consider the one-dimensional Bose-Hubbard model comprising both nearest-neighbor ($t_{1}$) and frustrated next-nearest neighbor ($t_{2}$) hoppings and examine how the interplay of onsite interaction ($U$) and hoppings results in different quantum correlations dominating in the ground state of the system. We then analyze the behavior of quantum entanglement in the model. In particular, we compute genuine multipartite entanglement as quantified through the generalized geometric measure and make a comparative study with bipartite entanglement and other relevant order parameters. We observe that genuine multipartite entanglement has a very rich behavior throughout the considered parameter regime and frustration does not necessarily favor generating a high amount of it. Moreover, we show that in the region with strong quantum fluctuations, the particles remain highly delocalized in all momentum modes and share a very low amount of both bipartite and multipartite entanglement. Our work illustrates the necessity to give separate attention to dominating ordering behavior and quantum entanglement in the ground state of strongly correlated systems.
description: 14 pages, 9 figures
title: Heinrich Niester, Burgen und Schlösser in Baden. In der Reihe „Burgen — Schlösser — Herrensitze", Band 18. Verlag Wolfgang Weidlich, Frankfurt am Main.
Creators: name: Lacroix, Emil
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 1-2 (1961): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die ehemalige Pfarrkirche St. Paul in Konstanz
Creators: name: Motz, Paul
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 1 (1962): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Friedhöfe für KZ-Opfer in Baden-Württemberg. Anlage und Gestaltung
Creators: name: Rieth, Adolf
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 1 (1962): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Understanding and Controlling Regime Switching in Molecular Diffusion
Creators: name: Hallerberg, S.
name: de Wijn, A. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: Chemical Physics (physics.chem-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Diffusion can be strongly affected by ballistic flights (long jumps) as well as long-lived sticking trajectories (long sticks). Using statistical inference techniques in the spirit of Granger causality, we investigate the appearance of long jumps and sticks in molecular-dynamics simulations of diffusion in a prototype system, a benzene molecule on a graphite substrate. We find that specific fluctuations in certain, but not all, internal degrees of freedom of the molecule can be linked to either long jumps or sticks. Furthermore, by changing the prevalence of these predictors with an outside influence, the diffusion of the molecule can be controlled. The approach presented in this proof of concept study is very generic, and can be applied to larger and more complex molecules. Additionally, the predictor variables can be chosen in a general way so as to be accessible in experiments, making the method feasible for control of diffusion in applications. Our results also demonstrate that data-mining techniques can be used to investigate the phase-space structure of high-dimensional nonlinear dynamical systems.
description: accepted for publication by PRE
title: Der romanische Kirchturm in Kippenheim (Kr. Lahr)
Creators: name: List, Karl
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1962): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Wandmalereien der St. Bernhardkapelle in Münzdorf (Kr. Münsingen)
Creators: name: Hoffmann, Herbert
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 1 (1963): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: In memoriam Wilhelm Bauer
Creators: name: D., ...
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 6, Nr. 1 (1963): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high-$z$ analogs at the dawn of the JWST era
Creators: name: Mingozzi, Matilde
name: James, Bethan L.
name: Arellano-Córdova, Karla Z.
name: Berg, Danielle A.
name: Senchyna, Peter
name: Chisholm, John
name: Brinchmann, Jarle
name: Aloisi, Alessandra
name: Amorín, Ricardo
name: Charlot, Stephane
name: Feltre, Anna
name: Hayes, Matthew J.
name: Heckman, Tim
name: Henry, Alaina
name: Hernandez, Svea
name: Kumari, Nimisha
name: Leitherer, Claus
name: Llerena, Mario
name: Martin, Crystal L.
name: Nanayakkara, Themiya
name: Ravindranath, Swara
name: Skillman, Evan D.
name: Sugahara, Yuma
name: Wofford, Aida
name: Xu, Xinfeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-2000Å) to investigate their stellar and gas properties. We present a toolkit of UV interstellar medium (ISM) diagnostics, analyzing the main emission lines of CLASSY spectra (i.e., NIV]$λλ$1483,87, CIV$λλ$1548,51, HeII$λ$1640, OIII]$λλ$1661,6, SiIII]$λλ$1883,92, CIII]$λλ$1907,9). Specifically, we focus our investigation on providing accurate diagnostics for reddening, electron density and temperature, gas-phase metallicity and ionization parameter, taking into account the different ionization zones of the ISM. We calibrate our UV toolkit using well-known optical diagnostics, analyzing archival optical spectra for all the CLASSY targets. We find that UV density diagnostics estimate ne values that are ~1-2 dex higher (e.g., ne(CIII]$λλ$}1907,9)~10$^4$cm$^{-3}$) than those inferred from their optical counterparts (e.g., ne([SII]$λλ$6717,31)~10$^2$cm$^{-3}$). Te derived from the hybrid ratio OIII]$λ$1666/[OIII]$λ$}5007 proves to be a reliable Te diagnostic, with differences in 12+log(O/H) within ~$\pm$0.3dex. We also investigate the relation between the stellar and gas E(B-V), finding consistent values at high specific star formation rates, while at low sSFR we confirm an excess of dust attenuation in the gas. Finally, we investigate UV line ratios and equivalent widths to provide correlations with 12+log(O/H) and log(U), but note there are degeneracies between the two. With this suite of UV-based diagnostics, we illustrate the pivotal role CLASSY plays in understanding the chemical and physical properties of high-z systems that JWST can observe in the rest-frame UV.
description: Accepted for publication on ApJ
Microbial and Immune Control of Intestinal Stem Cells
Creators: Ferguson, Meghan P
Publisher: name: University of Alberta Library
Year: 2023

Intestinal epithelial damage and homeostatic cell shedding sends evolutionarily conserved growth signals to activate division programs in stem cells, which renews the epithelium to maintain barrier integrity. In addition to conserved growth and stress signaling, microbes and innate immune pathways regulate stem cell function during homeostasis and disease. For instance, the microbiome promotes stem cell proliferation and differentiation while overactive innate immune signaling causes stem cell hyperproliferation and exacerbates tumorigenesis. It is clear bacteria and immune pathways are important regulators of stem cell function, however the complexity of the microbiome has made it difficult to elucidate the specific effects individual bacterial species have on stem cells. In addition, the intestine is a heterologous tissue composed of multiple different specialized cell types, including intestinal stem cells, absorptive enterocytes and secretory enteroendocrine cells. Given the heterogeneity of cell types in the intestine and the limitations of vertebrate genetics, cell-type specific contributions of immune pathway activation on intestinal growth have been hard to determine, especially the impact of immune activity in stem cells.

To determine how individual bacterial species and immune pathways impact stem cell function I used Drosophila melanogaster as a model system. Drosophila provides a number of advantages for this work. For example, Drosophila can be easily reared without a microbiome and associated with single bacterial species to determine their effects. In addition, Drosophila genetics allow for the perturbation of immune signaling in distinct cell types of the intestine, including stem cells. Using Drosophila, I identified the commensal bacteria Lactobacillus brevis as a potent stimulator of stem cell divisions and tumorigenesis. L. brevis altered the expression and intracellular localization of integrins in stem cells, leading to symmetric stem cell expansion. Next, I asked what

the consequences of immune signaling in stem cells are by activating or inhibiting the immune deficiency (IMD) pathway. Activation of IMD in progenitor cells resulted in intestinal hyperplasia and exacerbation of tumorigenesis. Furthermore, inhibition of IMD reduced homeostatic proliferation and disrupted differentiation. Finally, I asked if the NF-kB family transcription factor Relish acts in stem cells to modulate damage response. Damage of the intestine results in elevated stem cell divisions to repair the injury. However, stem cell specific Relish depletion caused stem cells and their progeny to undergo apoptosis, rendering intestines incapable of effective epithelial repair, leading to host lethality. Thus, bacterial species can have profound effects on stem cell physiology and that immune pathways act directly in stem cells to modify proliferation, tumorigenesis, differentiation and epithelial repair responses.
title: Die Rettung der kleinen gotischen Dorfkirche zu Bischweier (Kr. Rastatt)
Creators: name: Weber, Max
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 7, Nr. 1-2 (1964): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Quantum entanglement for two electrons in the excited states of helium-like systems
Creators: name: Lin, Yen-Chang
name: Ho, Yew Kam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The quantum entanglement for the two electrons in the excited states of the helium-like atom/ions is investigated using the two-electron wave functions constructed by the B-spline basis. As a measure of the spatial (electron-electron orbital) entanglement, the von Neumann entropy and linear entropy of the reduced density matrix are calculated for the 1s2s 1,3S excited states for systems with some selected Z values from Z=2 to Z=100. Results for the helium atom are compared with other available calculations. We have also investigated the entropies for these excited states when the nucleus charge is reduced from Z=2 to Z=1. At such a critical charge, all the singly-excited states of this system become unbound, and the linear entropies and the von Neumann entropies for the excited states are approaching 1/2 and 1, respectively, the limits for the entropies when one electron is bound to the nucleus, and the other being free.
description: Final version to be published in Canadian Journal of Physics; more references added; more tables added; discussion expanded
Using the dendro-climatological signal of urban trees as a measure of urbanization and urban heat island
Creators: name: Schneider, Christoph
name: Neuwirth, Burkhard
name: Schneider, Sebastian
name: Balanzategui, Daniel
name: Elsholz, Stefanie
name: Fenner, Daniel
name: Meier, Fred
name: Heinrich, Ingo
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::577 Ökologie
subject: urban climate
subject: tree rings
subject: Berlin
subject: urban trees
subject: correlation analysis
subject: urban growth

description: Using dendroclimatological techniques this study investigates whether inner city tree-ring width (TRW) chronologies from eight tree species (ash, beech, fir, larch, lime, sessile and pedunculate oak, and pine) are suitable to examine the urban heat island of Berlin, Germany. Climate-growth relationships were analyzed for 18 sites along a gradient of increasing urbanization covering Berlin and surrounding rural areas. As a proxy for defining urban heat island intensities at each site, we applied urbanization parameters such as building fraction, impervious surfaces, and green areas. The response of TRW to monthly and seasonal air temperature, precipitation, aridity, and daily air-temperature ranges were used to identify climate-growth relationships. Trees from urban sites were found to be more sensitive to climate compared to trees in the surrounding hinterland. Ring width of the deciduous species, especially ash, beech, and oak, showed a high sensitivity to summer heat and drought at urban locations (summer signal), whereas conifer species were found suitable for the analysis of the urban heat island in late winter and early spring (winter signal). The summer and winter signals were strongest in tree-ring chronologies when the urban heat island intensities were based on an area of about 200 m to 3000 m centered over the tree locations, and thus reflect the urban climate at the scale of city quarters. For the summer signal, the sensitivity of deciduous tree species to climate increased with urbanity. These results indicate that urban trees can be used for climate response analyses and open new pathways to trace the evolution of urban climate change and more specifically the urban heat island, both in time and space.
A Biographical Perspective on Processes of Radicalisation
Creators: name: Meier, Jana
name: Bögelein, Nicole
name: Neubacher, Frank
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 300 Sozialwissenschaften::340 Recht::340 Recht
subject: right-wing extremism
subject: narrative criminology
subject: biography
subject: qualitative research
subject: empirical study

description: This article reconstructs four ideal types of biographical self-descriptions outlining radicalisation processes that are based on longitudinal biographical interviews conducted with male (former) right-wing extremists. In the first self-description, the biographers explain how they were born into radicalised families whose ideological norms and values they adopted without question. The second self-description outlines how the biographers’ actions were guided by a longing for stability and community. Initially, ideology plays a tangential role, with involvement in Kameradschaften and violence providing key momentum. In the third self-description, biographers refer to their German heritage and glorify National Socialism. They see themselves as guardians of the German Volk, and partly resort to violence to defend this idea. The fourth self-description outlines engagement with right-wing extremism as an outlet for frustrations with social discrimination. During our analysis, we examine whether any of these ideal types also correspond to self-descriptions given by Islamists, concluding that the latter do indeed describe their pathways into radicalisation in a similar manner.
Inequality of Noether Type for Gorenstein Minimal 3-folds of General Type
Creators: name: Hu, Yong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $X$ be a Gorenstein minimal $3$-fold of general type. We prove the optimal inequality: $$K_X^{3}\geq \frac{4}{3}χ(ω_X)-2,$$ where $χ(ω_X)$ is the Euler-Poincar$\acute{\text{e}}$ characteristic of the dualizing sheaf $ø_{X}$.
description: 9 pages, Comm. Anal. Geom. (to appear)
Straßenraum neu denken.
Creators: name: Danke, Tabea
Publisher: name: Zenodo
Year: 2022

description: Auch wenn Straßenraum der größte öffentliche Raum in Großstädten ist, wird sein Potenzial unterschätzt. Während der meiste Platz der Straßen für das Fahren und Parken von Kraftfahrzeugen reserviert wird und daraus resultierend der Flächendruck, Gesundheitsgefahren, Überhitzung, städtisches Artensterben, Lärm- und Luftverschmutzung zunehmen, gleiten andere Funktionen in den Hintergrund: Begegnung, Erholung und Teilhabe am öffentlichen Leben, die zu sozialer Kohäsion führen. Für zukunftsfähige Planungen von Straßenräumen müssen inkludierende Lösungsstrategien mehr Raum bekommen. Diese Arbeit widmet sich daher der Herausforderung, wie Straßenraum neu gedacht werden kann, um die städtische Transformation hin zu einer lebenswerten Zukunft voranzutreiben. Hierbei ist das Ziel ein Format zu entwickeln, welches im Straßenraum angewendet werden kann, um ausgehend von der Zivilgesellschaft einen urbanen Wandel anzustoßen. Zu diesem Zweck wird die Grounded Theory verwendet, welche die Methoden der Dokumentenanalyse, teilnehmenden Beobachtung, und Verkehrszählung in einem iterativen Prozess umrahmt. Aus den Untersuchungen resultiert ein mehrstufiges Kategoriensystem, welches elf Straßenraumfunktionen erarbeitet und diese an einem Fallbeispiel, der Eschenstraße in Dresden, anwendet. Die Untersuchungen ergeben: Nur wenn Menschen über die Multifunktionalität des Straßenraumes in Kenntnis sind, können sie ihren Wert wahrnehmen. Fundierte Informationen bilden die Grundlage für die Einstellung zu einem Ort, sodass ein Neudenken auch neues Handeln anstößt. Als Katalysator dieses Prozesses entwickelt die Arbeit ein universelles Werkzeug: Das Hybridlabor. Es findet Einsatz im Straßenraum unter Anwendung einer Anwendungssoftware auf dem Smartphone. In Anlehnung an bestehende Formate ist das Hybridlabor modular und skalierbar aufgebaut und so konzipiert, dass es eine breite Bevölkerung zur Teilnahme motiviert und durch die generierten Ergebnisse den städtischen Planungs- und Forschungsprozess fördert. So kann dieses innovative Format eine umfassende Betrachtungsweise des Straßenraum in die politische und forscherische Agenda bringen.
title: Unsere historischen Brücken sind in Gefahr
Creators: name: Niester, Heinrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 7, Nr. 1-2 (1964): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Note on Bessaga-Klee classification
Creators: name: Cúth, Marek
name: Kalenda, Ondřej F. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 52A07

description: We collect several variants of the proof of the third case of the Bessaga-Klee relative classification of closed convex bodies in topological vector spaces. We were motivated by the fact that we have not found anywhere in the literature a complete correct proof. In particular, we point out an error in the proof given in the book of C.~Bessaga and A.~Pełczyński (1975). We further provide a simplified version of T.~Dobrowolski's proof of the smooth classification of smooth convex bodies in Banach spaces which works simultaneously in the topological case.
description: 14 pages; we made few corrections, added one reference and precised the abstract
On the Statistics of Elsasser Increments in Solar Wind and Magnetohydrodynamic Turbulence
Creators: name: Palacios, Juan C.
name: Bourouaine, Sofiane
name: Perez, Jean C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We investigate the dependency with scale of the empirical probability distribution functions (PDF) of Elsasser increments using large sets of WIND data (collected between 1995 and 2017) near 1 au. The empirical PDF are compared to the ones obtained from high-resolution numerical simulations of steadily driven, homogeneous Reduced MHD turbulence on a $2048^3$ rectangular mesh. A large statistical sample of Alfvénic increments is obtained by using conditional analysis based on the solar wind average properties. The PDF tails obtained from observations and numerical simulations are found to have exponential behavior in the inertial range, with an exponential decrement that satisfies power-laws of the form $α_l\propto l^{-μ}$, where $l$ the scale size, with $μ$ around 0.2 for observations and 0.4 for simulations. PDF tails were extrapolated assuming their exponential behavior extends to arbitrarily large increments in order to determine structure function scaling laws at very high orders. Our results points to potentially universal scaling laws governing the PDF of Elsasser increments and to an alternative methodology to investigate high-order statistics in solar wind observations.
description: 7 pages, 4 figures. Accepted for publication in the Astrophysical Journal Letters
title: Alte Glasmalerei in Loffenau (Kr. Calw)
Creators: name: Heye, Eva
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 7, Nr. 1-2 (1964): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Außenrenovierung der Sebastianskapelle in Ladenburg
Creators: name: Huth, Hans
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 7, Nr. 3 (1964): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Probing the Robustness of Pre-trained Language Models for Structured and Unstructured Entity Matching
Creators: Akbarian Rastaghi, Mehdi
Publisher: name: University of Alberta Library
Year: 2023

The paradigm of fine-tuning Pre-trained Language Models (PLMs) has been successful in Entity Matching (EM). Many contemporary works leverage PLM-based models to push the state of the results. However, using the power of transformer-based models has some downsides in this task. Despite their remarkable performance, PLMs exhibit a tendency to learn spurious correlations from training data. In this thesis, we aim to investigate whether PLM-based EM models can be trusted in real-world applications where data distribution is different from that of training. To this end, we design an evaluation benchmark to assess the robustness of structured EM models to facilitate their deployment in real-world settings. Then, we prescribe simple modifications that can improve the robustness of PLM-based EM models for structured and unstructured data. Also, to evaluate the model's performance on unstructured entity matching, we develop a new unstructured matching dataset. We extend our experiments further to study the effect of deep classifiers, data augmentation, and loss function on the model's robustness. Our experiments show that while yielding superior results for in-domain generalization, our proposed model significantly improves model robustness compared to state-of-the-art EM models.
Satellite Gravimetry: A Review of Its Realization
Creators: name: Flechtner, Frank
name: Reigber, Christoph
name: Rummel, Reiner
name: Balmino, Georges
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften
subject: gravitational field
subject: satellite gravimetry
subject: satellite altimetry
subject: gravitational field missions
subject: CHAMP
subject: GRACE
subject: GOCE
subject: GRACE FO
subject: satellite orbits
subject: satellite design
subject: mission objectives
subject: gravity field models
subject: mass changes
subject: satellite gradiometry
subject: laser interferometer

description: Since Kepler, Newton and Huygens in the seventeenth century, geodesy has been concerned with determining the figure, orientation and gravitational field of the Earth. With the beginning of the space age in 1957, a new branch of geodesy was created, satellite geodesy. Only with satellites did geodesy become truly global. Oceans were no longer obstacles and the Earth as a whole could be observed and measured in consistent series of measurements. Of particular interest is the determination of the spatial structures and finally the temporal changes of the Earth's gravitational field. The knowledge of the gravitational field represents the natural bridge to the study of the physics of the Earth's interior, the circulation of our oceans and, more recently, the climate. Today, key findings on climate change are derived from the temporal changes in the gravitational field: on ice mass loss in Greenland and Antarctica, sea level rise and generally on changes in the global water cycle. This has only become possible with dedicated gravity satellite missions opening a method known as satellite gravimetry. In the first forty years of space age, satellite gravimetry was based on the analysis of the orbital motion of satellites. Due to the uneven distribution of observatories over the globe, the initially inaccurate measuring methods and the inadequacies of the evaluation models, the reconstruction of global models of the Earth's gravitational field was a great challenge. The transition from passive satellites for gravity field determination to satellites equipped with special sensor technology, which was initiated in the last decade of the twentieth century, brought decisive progress. In the chronological sequence of the launch of such new satellites, the history, mission objectives and measuring principles of the missions CHAMP, GRACE and GOCE flown since 2000 are outlined and essential scientific results of the individual missions are highlighted. The special features of the GRACE Follow-On Mission, which was launched in 2018, and the plans for a next generation of gravity field missions are also discussed.
title: Ein unbekanntes Baumeisterbildnis von Lorenz Lechler in der Dionysiuskirche zu Esslingen am Neckar
Creators: name: Anstett, Peter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 7, Nr. 4 (1964): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Vicarious Resilience Among Ethnic Minority Counsellors Working with Attempted Genocide Survivors
Creators: Burgos Cando, Mikaela
Publisher: name: University of Alberta Library
Year: 2023

Survivors of attempted genocide are persecuted for their ethnic, racial, national, and/or religious identities (United Nations, n.d.a). Throughout the migration journey, genocide survivors are exposed to various forms of violence and trauma (Rieder & Elbert, 2013). Despite the potential negative effects of trauma, there is a variability of responses to adversity among genocide survivors (Hedglen, 2016) which suggest possibilities for resilience. Racialized and ethnically diverse mental health practitioners working with genocide survivors are likely to share experiences of having their own racial and ethnic identities threatened through experiences of racism, discrimination and systemic oppression (Lipscomb & Ashley, 2020). In light of research highlighting the resilience of genocide survivors, it is possible that these mental health practitioners can also experience vicarious resilience, or positive identity and practice transformations after bearing witness to survivors’ stories of overcoming adversity (Hernandez et al., 2007). This qualitative study used basic interpretive inquiry to explore experiences of vicarious resilience among racialized and ethnically diverse mental health practitioners who have worked with resilient attempted genocide survivor clients within a counselling setting. Five self-identified racialized and ethnically diverse mental health practitioners participated in semi-structured interviews regarding their experiences. Thematic analysis of their disclosures revealed that intersections between their own identities and those of their clients led to: (a) increased attachment to and connection with their own ethnic group, heritage, and history; (b) an increased appreciation of their ethnic identity and its role in their lives and functions as a source of strength and resilience; and (c) shifts in professional practice and priorities towards trauma-informed care, assistance with removing systemic barriers, and greater political participation, education and advocacy regarding racism, discrimination, and microaggressions.
title: Die evang. Kirche in Wolchingen (Kr.Tauberbischofsheim) und ihre Instandsetzungen in den Jahren 1877/78 und 1961/63
Creators: name: Niester, Heinrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 8, Nr. 1 (1965): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Minimal genera of open 4-manifolds
Creators: name: Gompf, Robert E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 57R10, 32Q28

description: We study exotic smoothings of open 4-manifolds using the minimal genus function and its analog for end homology. While traditional techniques in open 4-manifold smoothing theory give no control of minimal genera, we make progress by using the adjunction inequality for Stein surfaces. Smoothings can be constructed with much more control of these genus functions than the compact setting seems to allow. As an application, we expand the range of 4-manifolds known to have exotic smoothings (up to diffeomorphism). For example, every 2-handlebody interior (possibly infinite or nonorientable) has an exotic smoothing, and "most" have infinitely, or sometimes uncountably many, distinguished by the genus function and admitting Stein structures when orientable. Manifolds with 3-homology are also accessible. We investigate topological submanifolds of smooth 4-manifolds. Every domain of holomorphy (Stein open subset) in the complex plane $C^2$ is topologically isotopic to uncountably many other diffeomorphism types of domains of holomorphy with the same genus functions, or with varying but controlled genus functions.
description: 30 pages, 1 figure. v3 is essentially the version published in Geometry and Topology, obtained from v2 by major streamlining for readability. Several new examples added since v2; see last paragraph of introduction for details
Moments of the Gaussian $β$ Ensembles and the large-$N$ expansion of the densities
Creators: name: Witte, N. S.
name: Forrester, P. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 15B52, 60K35, 62E15, 33C45

description: The loop equation formalism is used to compute the $1/N$ expansion of the resolvent for the Gaussian $β$ ensemble up to and including the term at $O(N^{-6})$. This allows the moments of the eigenvalue density to be computed up to and including the 12-th power and the smoothed density to be expanded up to and including the term at $O(N^{-6})$. The latter contain non-integrable singularities at the endpoints of the support --- we show how to nonetheless make sense of the average of a sufficiently smooth linear statistic. At the special couplings $β= 1$, $2$ and $4$ there are characterisations of both the resolvent and the moments which allows for the corresponding expansions to be extended, in some recursive form at least, to arbitrary order. In this regard we give fifth order linear differential equations for the density and resolvent at $β= 1$ and $4$, which complements the known third order linear differential equations for these quantities at $β= 2$.
description: 30 pages, final version has been trimmed and additional moments have been computed, which are recorded in the Appendix
Interference alignment using finite and dependent channel extensions: the single beam case
Creators: name: Sun, Ruoyu
name: Luo, Zhi-Quan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Vector space interference alignment (IA) is known to achieve high degrees of freedom (DoF) with infinite independent channel extensions, but its performance is largely unknown for a finite number of possibly dependent channel extensions. In this paper, we consider a $K$-user $M_t \times M_r$ MIMO interference channel (IC) with arbitrary number of channel extensions $T$ and arbitrary channel diversity order $L$ (i.e., each channel matrix is a generic linear combination of $L$ fixed basis matrices). We study the maximum DoF achievable via vector space IA in the single beam case (i.e. each user sends one data stream). We prove that the total number of users $K$ that can communicate interference-free using linear transceivers is upper bounded by $NL+N^2/4$, where $N = \min\{M_tT, M_rT \}$. An immediate consequence of this upper bound is that for a SISO IC the DoF in the single beam case is no more than $\min\left\{\sqrt{ 5K/4}, L + T/4\right\}$. When the channel extensions are independent, i.e. $ L$ achieves the maximum $M_r M_t T $, we show that this maximum DoF lies in $[M_r+M_t-1, M_r+M_t]$ regardless of $T$. Unlike the well-studied constant MIMO IC case, the main difficulty is how to deal with a hybrid system of equations (zero-forcing condition) and inequalities (full rank condition). Our approach combines algebraic tools that deal with equations with an induction analysis that indirectly considers the inequalities.
description: 43 pages. Revised version; title changed. A shorter version (without proofs for simple cases) accepted by IEEE Trans. on Info. Theory
title: In memoriam Prof. Dr.-Ing. Emil Lacroix
Creators: name: Huth, Hans
name: Niester, Heinrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 8, Nr. 1 (1965): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
La formule des traces stable pour le groupe métaplectique: les termes elliptiques
Creators: name: Li, Wen-Wei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14F72 (Primary) 14F27, 14F70 (Secondary)

description: Let F be a number field and $\widetilde{\mathrm{Sp}}(2n)$ be the metaplectic covering of Weil of $\mathrm{Sp}(2n, \mathbb{A}_F)$. We stabilize the elliptic semi-simple terms of the genuine part of trace formula for $\widetilde{\mathrm{Sp}}(2n)$, by using the transfer of test functions and the fundamental lemma established in a previous article. We obtain therefore an expression in terms of stable orbital integrals along certain $F$-elliptic classes in $\mathrm{SO}(2n'+1) \times \mathrm{SO}(2n''+1)$, which we call equisingular, for pairs $(n', n'')$ satisfying $n'+n''=n$. A simple formula for the coefficients is also obtained.
description: 70 pages, in French, with various corrections
Untitled Item
Creators: name: O'Dea, Xianghan (Christine)
Publisher: name: figshare
Year: 2023
Subjects: Higher education
Comparative and cross-cultural education
Educational technology and computing
Inclusive education
Learning analytics
Multicultural education (excl. Aboriginal and Torres Strait Islander, Māori and Pacific Peoples)

description: Research on international students’ learning experiences pays much less attention to those studying semester and/or year-long programmes in a country that differs significantly from their home country with respect to culture and the education system. Adopting transformative learning theory as the theoretical framework, this paper explores the learning effectiveness of students on such programme in a Chinese and in a UK university. It analyses the narratives of 27 students in relation to their cognitive and behavioural activities and also their self-reflective and collaborative reflective activities. The findings indicate that these students only partially achieved transformative learning. The main reasons are: (1) the duration of this type of programme was not long enough to achieve a full transformation and (2) both host universities did not include reflection in the learning process properly. This paper makes a contribution to cross-border learning literature in the Chinese and the UK contexts.
H1821+643: The most X-ray and infrared luminous AGN in the Swift/BAT survey in the process of rapid stellar and supermassive black hole mass assembly
Creators: name: Fukuchi, Hikaru
name: Ichikawa, Kohei
name: Akiyama, Masayuki
name: Ricci, Claudio
name: Chon, Sunmyon
name: Kokubo, Mitsuru
name: Liu, Ang
name: Hashimoto, Takuya
name: Izumi, Takuma
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: H1821+643 is the most X-ray luminous non-beamed AGN of $L_\mathrm{14-150 keV}= 5.2\times 10^{45}$ erg s$^{-1}$ in the Swift/BAT ultra-hard X-ray survey and it is also a hyper-luminous infrared (IR) galaxy $L_\mathrm{IR} = 10^{13.2} L_\odot$ residing in the center of a massive galaxy cluster, which is a unique environment achieving the rapid mass assembly of black holes (BH) and host galaxies in the local universe. We decompose the X-ray to IR spectral energy distribution (SED) into the AGN and starburst component using the SED fitting tool CIGALE-2022.0 and show that H1821+643 consumes a large amount of cold gas ($\dot{M}_\mathrm{con}$) with star-formation rate of $\log ( \mathrm{SFR}/M_{\odot}~\mathrm{yr}^{-1}) = 3.01 \pm 0.04$ and BH accretion rate of $\log (\dot{M}_\mathrm{BH}/M_{\odot}~\mathrm{yr}^{-1}) = 1.20 \pm 0.05$. This high $\dot{M}_\mathrm{con}$ is larger than the cooling rate ($\dot{M}_\mathrm{cool}$) of the intra-cluster medium (ICM), $\dot{M}_\mathrm{con}/\dot{M}_\mathrm{cool} \gtrsim 1$, which is one to two order magnitude higher than the typical value of other systems, indicating that H1821 provides the unique and extreme environment of rapid gas consumption. We also show that H1821+643 has an efficient cooling path achieving from $10^7$ K to $10^2$ K thanks to [OIII] 63 $μ\mathrm{m}$, which is a main coolant in low temperature range ($10^4$ K to $10^2$ K) with a cooling rate of $\dot{M}_{\mathrm{cool}}=3.2\times 10^5\ M_{\odot}\mathrm{~yr^{-1}}$, and the star-forming region extends over 40 kpc scale.
description: 20 pages, 8 figures, accepted for publication in ApJ
Patterns formation in axially symmetric Landau-Lifshitz-Gilbert-Slonczewski equations
Creators: name: Melcher, Christof
name: Rademacher, Jens D. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B36, 35C07, 35K59, 82D40

description: The Landau-Lifshitz-Gilbert-Slonczewski equation describes magnetization dynamics in the presence of an applied field and a spin polarized current. In the case of axial symmetry and with focus on one space dimension, we investigate the emergence of space-time patterns in the form of wavetrains and coherent structures, whose local wavenumber varies in space. A major part of this study concerns existence and stability of wavetrains and of front- and domain wall-type coherent structures whose profiles asymptote to wavetrains or the constant up-/down-magnetizations. For certain polarization the Slonczewski term can be removed which allows for a more complete charaterization, including soliton-type solutions. Decisive for the solution structure is the polarization parameter as well as size of anisotropy compared with the difference of field intensity and current intensity normalized by the damping.
A Comparative Assessment of Time-to-Event Models for Distribution Cable Networks
Creators: Kullar, Jagbir S.
Publisher: name: University of Alberta Library
Year: 2023

With rising demands in industry for reliable electrical cable distribution networks comes an inherent need for utility providers to know well the condition of the assets in their network. Heightened expectations from regulators and consumers require methods of reliability assessment to improve the processes adhering to performance-based ratemaking models.

The present work is a comparative assessment of survival modelling techniques in a real-world application. This work investigates the incorporation of class balancing methods in survival analysis models, and how to assess model performance in the context of time-to-event failure probability. Numerous modelling strategies are assessed in the context of calibration and discrimination performance, leading to the choice of a model that most accurately describes individualized asset survival and hazard functions.

A method is developed for a multi-stage approach to risk scoring and failure prediction for underground, medium-voltage, power distribution cable. The method applies data class balancing techniques and survival analysis models to accurately describe the survival probability of individual cables in a distribution network. Class balancing is applied to the failure state of the cables in the dataset using both under-sampling and over-sampling methods. The balanced data forms the input data for various machine learning survival analysis models and the performance of the models are compared against models trained using the original, highly unbalanced, dataset. The resultant survival models are evaluated for their efficiency, discrimination power and overall goodness-of-fit to determine the best suited model given the data. Additionally, examination of cable parameters leads to the determination of the importance of cable properties and operating conditions that most significantly influence the model and the failure likelihood of cables. The information is used to generate individualized hazard and survival functions for specific cable instances with their unique covariate conditions.

The work concludes with a discussion of the implementation of the comparative assessment in the utility providers’ data analytics and reliability processes, suggestions for the supplementary capabilities for the annual cable testing program, and recommends further work and strategies to create a more all-encompassing strategy for cable reliability analytics.
Colouring quadrangulations of projective spaces
Creators: name: Kaiser, Tomáš
name: Stehlík, Matěj
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 55U10

description: A graph embedded in a surface with all faces of size 4 is known as a quadrangulation. We extend the definition of quadrangulation to higher dimensions, and prove that any graph G which embeds as a quadrangulation in the real projective space P^n has chromatic number n+2 or higher, unless G is bipartite. For n=2 this was proved by Youngs [J. Graph Theory 21 (1996), 219-227]. The family of quadrangulations of projective spaces includes all complete graphs, all Mycielski graphs, and certain graphs homomorphic to Schrijver graphs. As a corollary, we obtain a new proof of the Lovasz-Kneser theorem.
title: [Der Stuttgarter Restauratorenkurs] Spannvorrichtungen für das Leinivandbild
Creators: name: Straub, Rolf E.
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 8, Nr. 3 (1965): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
$D^*$ and $D^*_s$ distribution amplitudes from Bethe-Salpeter wave functions
Creators: name: Serna, Fernando E.
name: da Silveira, Roberto Correa
name: El-Bennich, Bruno
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We report on the first calculation of the longitudinal and transverse light front distribution amplitudes of the $D^*$ and $D^*_s$ mesons and their first four moments. As a byproduct, we also obtain these distribution amplitudes for the $ρ$, $ϕ$, $K^*$ and $J/Ψ$ mesons and confirm a prediction of lattice QCD for the vector kaon: while the longitudinal distribution amplitude is almost symmetric, the transverse one is oblique implying that the strange quark carries more momentum.
description: 7 pages, 4 figures, 3 tables, published in Physical Review D Letters with slight text modifications and one more reference
title: Ernst Brauch, Hockenheim, Stadt im Auf- und Umbruch, Schwetzingen 1965
Creators: name: Huth, Hans
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 8, Nr. 3 (1965): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4