cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multi-objective optimization of longitudinal injection based on a multi-frequency RF system for fourth-generation storage ring-based light sources
Creators: name: Liu, Weihang
name: Jiao, Yi
name: Zhao, Yu
name: Chen, Jianliang
name: Han, Yanliang
name: Wang, Sheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: In the fourth-generation storage ring light sources (4GLSs), associated with the extremely strong nonlinearities inherent in the multi-bend achromat design, the dynamic acceptance is usually small and it is difficult to implement traditional off-axis local-bump injection. To release the requirement on dynamic acceptance, on-axis longitudinal injection schemes have been explored. In this paper, we present a multi-objective optimization of longitudinal injection with a multi-frequency RF system, based on the parameters of the Southern Advanced Photon Source, a 4GLS proposed in China. We show that by treating the optimal bunch lengthening condition as an optimizing objective rather than a condition that must be satisfied, a plethora of feasible candidate solutions can be found, showing different trade-offs among multi-objectives. From these candidate solutions, one can find an optimal RF parameter setting that is most adapted to a specific 4GLS physics design and the available technical level of injection kicker. Especially, it would be feasible to realize longitudinal injection within a static bucket enabled by a double-frequency RF system, suggesting an attractive longitudinal injection option for 4GLSs.
title: Fachwerkbauten des 15. Jahrhunderts (4). Das alemannische Fachwerkhaus in Saulgau, Schützenstraße 7
Creators: name: Scholkmann, Klaus
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 1 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Chemical Mechanical Planarization for Ta-based Superconducting Quantum Devices
Creators: name: Bhatia, Ekta
name: Kar, Soumen
name: Nalaskowski, Jakub
name: Vo, Tuan
name: Olson, Stephen
name: Frost, Hunter
name: Mucci, John
name: Martinick, Brian
name: Hung, Pui Yee
name: Wells, Ilyssa
name: Schujman, Sandra
name: Rao, Satyavolu S. Papa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report on the development of a chemical mechanical planarization (CMP) process for thick damascene Ta structures with pattern feature sizes down to 100 nm. This CMP process is the core of the fabrication sequence for scalable superconducting integrated circuits at 300 mm wafer scale. This work has established the elements of the various CMP-related design rules that can be followed by a designer for the layout of circuits that include Ta-based coplanar waveguide resonators, capacitors, and interconnects for tantalum-based qubits and single flux quantum (SFQ) circuits. The fabrication of these structures utilizes 193 nm optical lithography, along with 300 mm process tools for dielectric deposition, reactive ion etch, wet-clean, CMP and in-line metrology, all tools typical for a 300 mm wafer CMOS foundry. Process development was guided by measurements of physical and electrical characteristics of the planarized structures. Physical characterization such as atomic force microscopy across the 300 mm wafer surface showed local topography was less than 5 nm. Electrical characterization confirmed low leakage at room temperature, and less than 12% within wafer sheet resistance variation, for damascene Ta line-widths ranging from 100 nm to 3 μm. Run-to-run reproducibility was also evaluated. Effects of process integration choices including deposited thickness of Ta are discussed.
description: 31 pages, 16 figures
Keck Integral-Field Spectroscopy of M87 Reveals an Intrinsically Triaxial Galaxy and a Revised Black Hole Mass
Creators: name: Liepold, Emily R.
name: Ma, Chung-Pei
name: Walsh, Jonelle L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The three-dimensional intrinsic shape of a galaxy and the mass of the central supermassive black hole provide key insight into the galaxy's growth history over cosmic time. Standard assumptions of a spherical or axisymmetric shape can be simplistic and can bias the black hole mass inferred from the motions of stars within a galaxy. Here we present spatially-resolved stellar kinematics of M87 over a two-dimensional $250\mbox{$^{\prime\prime}$} \times 300\mbox{$^{\prime\prime}$}$ contiguous field covering a radial range of 50 pc-12 kpc from integral-field spectroscopic observations at the Keck II Telescope. From about 5 kpc and outward, we detect a prominent 25 $\mathrm{km~s}^{-1}$ rotational pattern, in which the kinematic axis (connecting the maximal receding and approaching velocities) is $40^\circ$ misaligned with the photometric major axis of M87. The rotational amplitude and misalignment angle both decrease in the inner 5 kpc. Such misaligned and twisted velocity fields are a hallmark of triaxiality, indicating that M87 is not an axisymmetrically shaped galaxy. Triaxial Schwarzschild orbit modeling with more than 4000 observational constraints enabled us to determine simultaneously the shape and mass parameters. The models incorporate a radially declining profile for the stellar mass-to-light ratio suggested by stellar population studies. We find that M87 is strongly triaxial, with ratios of $p=0.845$ for the middle-to-long principal axes and $q=0.722$ for the short-to-long principal axes, and determine the black hole mass to be $(5.37^{+0.37}_{-0.25}\pm 0.22)\times 10^9 M_\odot$, where the second error indicates the systematic uncertainty associated with the distance to M87.
description: Published in ApJL. 15 pages, 8 figures
title: Eine römische Villa unter der Martinskirche von Müllheim, Kreis Breisgau-Hochschwarzwald
Creators: name: Fingerlin, Gerhard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 1 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Tail behavior of sums and differences of log-normal random variables
Creators: name: Gulisashvili, Archil
name: Tankov, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Risk Management (q-fin.RM)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: We present sharp tail asymptotics for the density and the distribution function of linear combinations of correlated log-normal random variables, that is, exponentials of components of a correlated Gaussian vector. The asymptotic behavior turns out to depend on the correlation between the components, and the explicit solution is found by solving a tractable quadratic optimization problem. These results can be used either to approximate the probability of tail events directly, or to construct variance reduction procedures to estimate these probabilities by Monte Carlo methods. In particular, we propose an efficient importance sampling estimator for the left tail of the distribution function of the sum of log-normal variables. As a corollary of the tail asymptotics, we compute the asymptotics of the conditional law of a Gaussian random vector given a linear combination of exponentials of its components. In risk management applications, this finding can be used for the systematic construction of stress tests, which the financial institutions are required to conduct by the regulators. We also characterize the asymptotic behavior of the Value at Risk for log-normal portfolios in the case where the confidence level tends to one.
description: Published at http://dx.doi.org/10.3150/14-BEJ665 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Forging a Path Towards Equity in Smart Public Transit Systems
Creators: name: Kirabo, Lynn
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: 80502 Mobile Technologies
subject: FOS: Computer and information sciences

description: Public transit is the heartbeat of most cities around the world. It gives communities access to employment and services like health and education. Policy recommendations, interventions, and research on public transit often focuses on drivers as the primary stakeholder. This same focus is evident in the recent proliferation of machine learning interventions in public transit technologies. They neglect the influence and impact of these machine learning interventions on other stakeholders in the public transit ecosystem. This focus runs the risk of automating inequities within future mobility systems. In this dissertation, we argue that to design for equity in public transit, we should have an understanding of the broader public transit ecosystems in which we are deploying transit AI technologies. My completed research studies traverse two geographic contexts, East Africa and North America. My work shows an underlying influence of trust on relationships within the ecosystem, and unique stakeholder appropriation of transit technologies. Conversely, we also found a suspicion of advanced smart transit interfaces. Thus, we propose that to design for equity in smart transit systems, designers and researchers should consider two dimensions of trust: trust in the interfaces and trust between stakeholders within the ecosystem. My last work focuses on the first dimension, trust in the interface. We co-created the Jacaranda Framework — a framework of concerns relevant to disabled riders’ use of smart transit interfaces. We also demonstrated how principles from the framework could improve users’ holistic experience with smart transit interfaces. This thesis makes the following major contributions: 1) Establishes a multidimensional connection between Trust and Ecosystems, 2) Demonstrates a need to understanding the entire ecosystem when considering new technologies, 3) Presents the Jacaranda Framework — a framework of concerns relevant to disabled riders’ use of smart transit interfaces, and 4) Demonstrates how methodologies can be adapted for research in these areas.
The influence of adatom diffusion on the formation of skyrmion lattice in sub-monolayer Fe on Ir(111)
Creators: name: Shuai, Mingming
name: Yang, Yulong
name: Huang, Haiming
name: Song, Rui
name: Zhu, Yi
name: Liao, Yanghui
name: Zhu, Yinyan
name: Zhou, Xiaodong
name: Yin, Lifeng
name: Shen, Jian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Room temperature grown Fe monolayer (ML) on the Ir(111) single crystal substrate has attracted great research interests as nano-skyrmion lattice can form under proper growth conditions. The formation of the nanoscale skyrmion, however, appears to be greatly affected by the diffusion length of the Fe adatoms on the Ir(111) surface. We made this observation by employing spin-polarized scanning tunneling microscopy to study skyrmion formation upon systematically changing the impurity density on the substrate surface prior to Fe deposition. Since the substrate surface impurities serve as pinning centers for Fe adatoms, the eventual size and shape of the Fe islands exhibit a direct correlation with the impurity density, which in turn determines whether skyrmion can be formed. Our observation indicates that skyrmion only forms when the impurity density is below 0.006/nm2, i.e., 12 nm averaged spacing between the neighboring defects. We verify the significance of Fe diffusion length by growing Fe on clean Ir(111) substrate at low temperature of 30 K, where no skyrmion was observed to form. Our findings signify the importance of diffusion of Fe atoms on the Ir(111) substrate, which affects the size, shape and lattice perfection of the Fe islands and thus the formation of skyrmion lattice.
On existence and phase separation of solitary waves for nonlinear Schrödinger systems modelling simultaneous cooperation and competition
Creators: name: Soave, Nicola
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 34B18, 34G20, 35Q55

description: We study the existence of positive bound states for the nonlinear elliptic system \[ \begin{cases} - Δu_i + λ_i u_i = \sum_{j=1}^d β_{ij} u_j^2 u_i & \text{in $Ω$} \\ u_1 =\cdots = u_d=0 & \text{on $\partial Ω$}, \end{cases} \] where $d \ge 2$, $β_{ij}= β_{ji}$, $β_{ii},λ_i >0$, and $Ω$ is either a bounded domain of $\mathbb{R}^N$, or $Ω=\mathbb{R}^N$, with $N \le 3$. In light of its applicability in several physical contexts, the problem has been intensively studied in recent years, and several results concerning existence, multiplicity and qualitative properties of the solutions are available if either $β_{ij}\le 0$ for every $i \neq j$, or $β_{ij}>0$ for every $i \neq j$ and some additional assumptions are satisfied. On the other hand, only very partial results are known in the case of \emph{simultaneous cooperation and competition}, that is, when there exist two pairs $(i_1,j_1)$ and $(i_2,j_2)$ such that $i_1 \neq j_1$, $i_2 \neq j_2$, $β_{i_1 j_1}>0$ and $β_{i_2,j_2}<0$. In this setting, we provide sufficient conditions on the coupling parameters $β_{ij}$ in order to have a positive solution. Our first main results establishes the existence of solutions with at least $m$ positive components for every $m \le d$. Any such solution is a minimizer of the energy functional $J$ restricted on a \emph{Nehari-type manifold} $\mathcal{N}$. By means of level estimates on the constrained second differential of $J$ on $\mathcal{N}$, we show that, under some additional assumptions, any such minimizer has all nontrivial components. In order to prove this second result, we analyse the phase separation phenomena which involve solutions of the system in a \emph{not completely competitive} framework.
description: 27 pages, no figures, published online on Calc. Var. PDE
title: [Finden statt erfinden] Rückgewinnung historischer Farbigkeit in der Altstadt von Besigheim
Creators: name: Wengerter, Horst
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 1 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Propagation of chaos for order statistics of particle systems with mean-field interaction
Creators: name: Zhang, Zeyu
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: 10404 Probability Theory
subject: FOS: Mathematics
subject: 10205 Financial Mathematics

description: This thesis focuses on the study of the asymptotic behavior of the order statistics of real-valued diffusive particles with mean-field drift interaction, with a particular emphasis on the extremes of N mean-field interacting particle systems, following the spirit of extreme value theory. The main contribution of this thesis is presented in two parts, outlined in Chapter 4 and Chapter 5. Chapter 4 presents the study of the asymptotic behavior of the normalized maxima of real-valued diffusive particles with mean-field drift interaction. Our main result establishes propagation of chaos, demonstrating that in the large population limit, the normalized maxima behave like those arising in an i.i.d. system where each particle follows the associated McKean–Vlasov limiting dynamics. Unlike classical propagation of chaos, where convergence to an i.i.d. limit holds for any fixed number of particles but not all particles simultaneously, our result accounts for the dependence of the maximum on all particles. Our proof involves a change of measure argument that relies on a delicate combinatorial analysis of the iterated stochastic integrals present in the chaos expansion of the Radon–Nikodym density. Chapter 5 focuses on the asymptotics of the point process induced by the same interacting particle system with mean-field drift interaction. Under suitable assumptions, we establish propagation of chaos for this point process. It has the same weak limit as the point process induced by i.i.d. copies of the solution of a limiting McKean–Vlasov equation. The weak limit is a Poisson point process whose intensity measure is related to classical extreme value distributions. In particular, this yields the limiting distribution of the normalized upper order statistics.
Gravitational Collapse In Husain Space-time For Brans-Dicke Gravity Theory with Power-law Potential
Creators: name: Rudra, Prabir
name: Biswas, Ritabrata
name: Debnath, Ujjal
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The motive of this work is to study gravitational collapse in Husain space-time in Brans-Dicke gravity theory. Among many scalar-tensor theories of gravity, Brans-Dicke is the simplest and the impact of it can be regulated by two parameters associated with it, namely, the Brans-Dicke parameter, $ω$, and the potential-scalar field dependency parameter $n$ respectively. V. Husain's work on exact solution for null fluid collapse in 1996 has influenced many authors to follow his way to find the end-state of the homogeneous/in-homogeneous dust cloud. Vaidya's metric is used all over to follow the nature of future outgoing radial null geodesics. Detecting whether the central singularity is naked or wrapped by an event horizon, by the existence of future directed radial null geodesic emitted in past from the singularity is the basic objective. To point out the existence of positive trajectory tangent solution, both particular parametric cases(through tabular forms) and wide range contouring process have been applied. Precisely, perfect fluid's EoS satisfies a wide range of phenomena : from dust to exotic fluid like dark energy. We have used the EoS parameter $k$ to determine the end state of collapse in different cosmological era. Our main target is to check low $ω$ (more deviations from Einstein gravity-more Brans Dicke effect) and negative $k$ zones. This particularly throws light on the nature of the end-state of collapse in accelerated expansion in Brans Dicke gravity. It is seen that for positive values of EoS parameter $k$, the collapse results in a black hole, whereas for negative values of $k$, naked singularity is the only outcome. It is also to be noted that "low $ω$" leads to the possibility of getting more naked singularities even for a non-accelerating universe.
description: 13 pages, 9 figures, Accepted for Publication in Astrophys. and Space Sci
Remembering the work of Phillip L. Geissler: A coda to his scientific trajectory
Creators: name: Bowman, Gregory R.
name: Cox, Stephen J.
name: Dellago, Christoph
name: DuBay, Kateri H.
name: Eaves, Joel D.
name: Fletcher, Daniel A.
name: Frechette, Layne B.
name: Grünwald, Michael
name: Klymko, Katherine
name: Ku, JiYeon
name: Omar, Ahmad K.
name: Rabani, Eran
name: Reichman, David R.
name: Rogers, Julia R.
name: Rosnik, Andreana M.
name: Rotskoff, Grant M.
name: Schneider, Anna R.
name: Schwierz, Nadine
name: Sivak, David A.
name: Vaikuntanathan, Suriyanarayanan
name: Whitelam, Stephen
name: Widmer-Cooper, Asaph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Phillip L. Geissler made important contributions to the statistical mechanics of biological polymers, heterogeneous materials, and chemical dynamics in aqueous environments. He devised analytical and computational methods that revealed the underlying organization of complex systems at the frontiers of biology, chemistry, and materials science. In this retrospective, we celebrate his work at these frontiers.
title: [Nachruf] Hermann Schilli
Creators: name: Hesselbacher, Martin
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 1 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Ergebnisse zum Oeko-Soja liegen vor
Creators: name: Rechnagel, Juergen
Publisher: name: Zenodo
Year: 2019
Subjects: legumes

description: Die Ergebnisse der Landessortenversuche (LSV) mit Oeko-Sojabohnen 2018 in Suedwestdeutschland sind da. Auch die Bohnen im oekologischen Anbau traf due Sommertrockenheit.
On the role of interaction in sequential Monte Carlo algorithms
Creators: name: Whiteley, Nick
name: Lee, Anthony
name: Heine, Kari
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: We introduce a general form of sequential Monte Carlo algorithm defined in terms of a parameterized resampling mechanism. We find that a suitably generalized notion of the Effective Sample Size (ESS), widely used to monitor algorithm degeneracy, appears naturally in a study of its convergence properties. We are then able to phrase sufficient conditions for time-uniform convergence in terms of algorithmic control of the ESS, in turn achievable by adaptively modulating the interaction between particles. This leads us to suggest novel algorithms which are, in senses to be made precise, provably stable and yet designed to avoid the degree of interaction which hinders parallelization of standard algorithms. As a byproduct, we prove time-uniform convergence of the popular adaptive resampling particle filter.
description: Published at http://dx.doi.org/10.3150/14-BEJ666 in the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
On the fourth order semipositone problem in $\mathbb{R}^N$
Creators: name: Biswas, Nirjan
name: Das, Ujjal
name: Sarkar, Abhishek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J35, 35J91, 35J08, 35B09, 35B65

description: For $N \geq 5$ and $a>0$, we consider the following semipositone problem \begin{align*} Δ^2 u= g(x)f_a(u) \text { in } \mathbb{R}^N, \, \text{ and } \, u \in \mathcal{D}^{2,2}(\mathbb{R}^N),\ \ \ \qquad \quad \mathrm{(SP)} \end{align*} where $g \in L^1_{loc}(\mathbb{R}^N)$ is an indefinite weight function, $f_a:\mathbb{R} \to \mathbb{R}$ is a continuous function that satisfies $f_a(t)=-a$ for $t \in \mathbb{R}^-$, and $\mathcal{D}^{2,2}(\mathbb{R}^N)$ is the completion of $\mathcal{C}_c^{\infty}(\mathbb{R}^N)$ with respect to $(\int_{\mathbb{R}^N} (Δu)^2)^{1/2}$. For $f_a$ satisfying subcritical nonlinearity and a weaker Ambrosetti-Rabinowitz type growth condition, we find the existence of $a_1>0$ such that for each $a \in (0,a_1)$, (SP) admits a mountain pass solution. Further, we show that the mountain pass solution is positive if $a$ is near zero. For the positivity, we derive uniform regularity estimates of the solutions of (SP) for certain ranges in $(0,a_1)$, relying on the Riesz potential of the biharmonic operator.
title: Photogrammetrische Vermessungen bei archäologischen Ausgrabungen
Creators: name: Eckstein, Günter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 2 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Signatures of electric field and layer separation effects on the spin-valley physics of MoSe$_2$/WSe$_2$ heterobilayers: from energy bands to dipolar excitons
Creators: name: Junior, Paulo E. Faria
name: Fabian, Jaroslav
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the spin-valley physics (SVP) in MoSe$_2$/WSe$_2$ heterobilayers under external electric field (EF) and changes of the interlayer distance (ID). We analyze the spin ($S_z$) and orbital ($L_z$) degrees of freedom, and the symmetry properties of relevant band edges (at K, Q, and $Γ$ points) in high-symmetry stackings at 0 (R-type) and 60 (H-type) degree angles, the important building blocks of moiré or atomically reconstructed structures. We reveal distinct hybridization signatures of $S_z$ and $L_z$ in low-energy bands due to the wave function mixing between the layers, which are stacking-dependent and can be further modified by EF and ID. The H-type stackings favor large changes in the g-factors under EF, e. g. from $-5$ to $3$ in the valence bands of the H$^h_h$ stacking, due to the opposite orientation of $S_z$ and $L_z$ in the individual monolayers. For the low-energy dipolar excitons (DEs), direct and indirect in $k$-space, we quantify the electric dipole moments and polarizabilities, reflecting the layer delocalization of the constituent bands. We found that direct DEs carry a robust valley Zeeman effect nearly independent of the EF but tunable by the ID, which can be experimentally accessible via applied external pressure. For the momentum-indirect DEs, our symmetry analysis indicates that phonon-mediated optical processes can easily take place. For the indirect DEs with conduction bands at the Q point for H-type stackings, we found marked variations of the valley Zeeman ($\sim 4$) as a function of the EF that notably stand out from the other DE species. Stronger signatures of the coupled SVP are favored in H-type stackings, which can be experimentally investigated in $\sim 60^\text{o}$ samples. Our study provides fundamental insights into the SVP of van der Waals heterostructures, relevant to understand the valley Zeeman of DEs and intralayer excitons.
description: 19 pages, 15 figures, 8 tables
Cosmic voids and the kinetic analysis. II. Link to Hubble tension
Creators: name: Gurzadyan, V. G.
name: Fimin, N. N.
name: Chechetkin, V. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a principal problem, that of the possible dominating role of self-consistent gravitational interaction in the formation of cosmic structures: voids and their walls in the local Universe. It is in the context of the Hubble tension as a possible indication of the difference in the descriptions of the late (local) and early (global) Universe. The kinetic Vlasov treatment enables us to consider the evolution of gravitating structures where the fundamental role has the modified gravitational potential with a cosmological constant, leading to the prediction of a local flow with a Hubble parameter that is nonidentical to that of the global Hubble flow. The Poisson equation for a potential with an additional repulsive term, including an integral equation formulation, is analyzed, and we predict the appearance of multiply connected two-dimensional gravitating structures and voids in the local Universe. The obvious consequence of the developed mechanism is that the cosmological constant poses a natural scaling for the voids, along with the physical parameters of their local environment, which can be traced in observational surveys.
description: 8 pages, A&A, in press
Broken living layers: dislocations in active smectics
Creators: name: Julicher, Frank
name: Prost, Jacques
name: Toner, John
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We show that dislocations in active 2d smectics with underlying rotational symmetry are always unbound in the presence of noise, meaning the active smectic phase does not exist for non-zero noise in $d=2$. The active smectic phase can, like equilibrium smectics in 2d, be stabilized by applying rotational symmetry breaking fields; however, even in the presence of such fields, active smectics are still much less stable against noise than equilibrium ones, when the symmetry breaking field(s) are weak.
description: 23 pages, 3 figures
title: Adolf G. Schnecks „Haus auf der Alb" bei Urach
Creators: name: Grunsky, Eberhard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 2 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Sample path behavior of a Lévy insurance risk process approaching ruin, under the Cramér-Lundberg and convolution equivalent conditions
Creators: name: Griffin, Philip S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Recent studies have demonstrated an interesting connection between the asymptotic behavior at ruin of a Lévy insurance risk process under the Cramér-Lundberg and convolution equivalent conditions. For example, the limiting distributions of the overshoot and the undershoot are strikingly similar in these two settings. This is somewhat surprising since the global sample path behavior of the process under these two conditions is quite different. Using tools from excursion theory and fluctuation theory, we provide a means of transferring results from one setting to the other which, among other things, explains this connection and leads to new asymptotic results. This is done by describing the evolution of the sample paths from the time of the last maximum prior to ruin until ruin occurs.
description: Published at http://dx.doi.org/10.1214/14-AAP1094 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Der Urpharer Meister in Freudenberg, Main-Tauber-Kreis
Creators: name: Christoph, Gertrud
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 3 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Günther Bentele/ Alfred Drossel: Fachwerkhäuser im Kreis Ludwigsburg. Verlag der Galerie im Unteren Tor, Bietigheim 1981, 168 S., zahlreiche Abb.
Creators: name: Strobel, Richard
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 3 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Der Neue Friedhof von Lahr in Baden. Ein Architekturwettbewerb im Jahr 1903
Creators: name: Schmidt, Leo
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 11, Nr. 4 (1982), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Weak arithmetic equivalence
Creators: name: Mantilla-Soler, Guillermo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R04, 11R42

description: Inspired by the invariant of a number field given by its zeta function, we define the notion of {\it weak arithmetic equivalence}, and show that under certain ramification hypothesis, this equivalence determines the local root numbers of the number field. This is analogous to a result of Rohrlich on the local root numbers of a rational elliptic curve. Additionally, we prove that for tame non-totally real number fields, the integral trace form is invariant under weak arithmetic equivalence.
description: I've changed some proofs and I've provided more examples. I have also added a new lemma that resolves some previously open questions in a former version of the paper
Survival after Hospital Admission in Adults with Liver Cirrhosis in California
Creators: name: Hawa, Saadiya
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Proportional hazards models
subject: Liver cirrhosis- survival

description: Cirrhosis of the liver currently ranks 9th amongst all causes of death in the United States, with a prevalence of 0.27%. In the world, with a prevalence of about 1.4%, it caused around 1.32 million or 2.4% of the total deaths in 2017. Cirrhosis is characterized by widespread fibrosis and regeneration of liver tissue, which is in response to irreversible and usually prolonged damage to the liver. The continued presence of the inciting factor causes progression to end-stage liver disease with or without hepatocellular carcinoma or liver cancer. The commonest cause in the US is chronic viral hepatitis by Hepatitis C or Hepatitis B virus, while alcohol-associated liver disease is more common worldwide. Currently, cirrhosis due to hepatitis is on a downward trend because of newer, more effective therapeutic options, whereas a lifestyle disorder called non-alcoholic fatty liver disease, as a cause of cirrhosis, is on the rise.
Survival with compensated liver cirrhosis is estimated to be around 12 years, while it is only 2 years with the decompensated form of the disease. There has not been any major population-based study in the United States providing us with recent survival estimates. Hence, to obtain current estimates, we used the Health Care Access and Information (HCAI) Patient Discharge Database of the Government of California to obtain a cohort of all California adults with diagnosed liver cirrhosis from 2005 to 2013. This database is linked to the California Comprehensive Master Death File via a unique Record Linkage Number, which allowed us to perform a time-to-death analysis. Using Kaplan-Meier methods, we estimated the median survival time for the sample overall, and stratified by variables like age, sex, race, ethnicity, payment type, and decompensation status. We used Cox proportional hazards regression to estimate hazard ratios for the outcome of death.
Our sample size consisted of 193,127 adults with an average age of 59.4 and a standard deviation of 13.1 years. 63.5% of our sample was male, 70.2% were white, and 30.7% were of Hispanic ethnicity. 39.3% were decompensated at baseline, and 39.1% of the sample used Medicare to pay for the services received. The median survival time for the overall sample was 4.16 (95% CI 4.09-4.24) years, with age more than 68 years and decompensated disease increasing the risk of death by 99% (95% CI 95%-104%) and 53% (95% CI 51%-55%), respectively. Belonging to the Asian race decreased the risk by 7% (95% CI 5%-10%), and the female sex had a 14% (95% CI 13%-16%) lower risk. The median survival for compensated liver disease was 5.37 (95% CI 5.25-5.48) years while it was 2.77 (95% CI 2.71-2.83) years for those decompensated at baseline.
Tipping points in macroeconomic Agent-Based models
Creators: name: Gualdi, Stanislao
name: Tarzia, Marco
name: Zamponi, Francesco
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Finance (q-fin.GN)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: The aim of this work is to explore the possible types of phenomena that simple macroeconomic Agent-Based models (ABM) can reproduce. We propose a methodology, inspired by statistical physics, that characterizes a model through its 'phase diagram' in the space of parameters. Our first motivation is to understand the large macro-economic fluctuations observed in the 'Mark I' ABM. Our major finding is the generic existence of a phase transition between a 'good economy' where unemployment is low, and a 'bad economy' where unemployment is high. We introduce a simpler framework that allows us to show that this transition is robust against many modifications of the model, and is generically induced by an asymmetry between the rate of hiring and the rate of firing of the firms. The unemployment level remains small until a tipping point, beyond which the economy suddenly collapses. If the parameters are such that the system is close to this transition, any small fluctuation is amplified as the system jumps between the two equilibria. We have explored several natural extensions of the model. One is to introduce a bankruptcy threshold, limiting the leverage of firms. This leads to a rich phase diagram with, in particular, a region where acute endogenous crises occur, during which the unemployment rate shoots up before the economy can recover. We also introduce simple wage policies. This leads to inflation (in the 'good' phase) or deflation (in the 'bad' phase), but leaves the overall phase diagram of the model essentially unchanged. We have also started exploring the effect of simple monetary policies that attempt to contain rising unemployment and defang crises. We end the paper with general comments on the usefulness of ABMs to model macroeconomic phenomena, in particular in view of the time needed to reach a steady state that raises the issue of ergodicity in these models.
description: 42 pages, 8 figures. Important revisions with respect to v2. Final version, to appear in a special issue of the Journal of Economic Dynamics and Control dedicated to the CRISIS project ( http://www.crisis-economics.eu )
title: Aufgaben und Aspekte der Stadtarchäologie
Creators: name: Borger, Hugo
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 18, Nr. 1 (1989), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Gravitational Interactions of Higher-Spin Fermions
Creators: name: Henneaux, Marc
name: Gomez, Gustavo Lucena
name: Rahman, Rakibur
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the cubic interactions of a massless higher-spin fermion with gravity in flat space and present covariant 2-s-s vertices, compatible with the gauge symmetries of the system, preserving parity. This explicit construction relies on the BRST deformation scheme that assumes locality and Poincare invariance. Consistent nontrivial cubic deformations exclude minimal gravitational coupling and may appear only with a number of derivatives constrained in a given range. Derived in an independent manner, our results do agree with those obtained from the light-cone formulation or inspired by string theory. We also show that none of the Abelian vertices deform the gauge transformations, while all the non-Abelian ones are obstructed in a local theory beyond the cubic order.
description: typos corrected, published in JHEP
title: Die Altstadt im Spannungsfeld von Erhaltung und Erneuerung
Creators: name: Gräf, Ulrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 18, Nr. 1 (1989), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Determination of the top-quark pole mass and strong coupling constant from the t t-bar production cross section in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The inclusive cross section for top-quark pair production measured by the CMS experiment in proton-proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, mtpole, or the strong coupling constant, alphaS. With the parton distribution function set NNPDF2.3, a pole mass of 176.7 +3.0 -2.8 GeV is obtained when constraining alphaS at the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mtpole to the latest average from direct mass measurements, a value of alphaS(mZ) = 0.1151 +0.0028 -0.0027 is extracted. This is the first determination of alphaS using events from top-quark production.
description: Replaced with corrected version. This version includes corrections to be to be published in an upcoming corrigendum that take into account the correct relative uncertainty the measured top-quark pair cross section of 4.1%. The general conclusions of the paper are unchanged. Corrected abstract to have correct uncertainties
Design and Evaluation of a Rack-Scale Disaggregated Memory Architecture For Data Centers
Creators: name: Puri, Amit
name: Jose, John
name: Venkatesh, Tamarapalli
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Memory disaggregation is being considered as a strong alternative to traditional architecture to deal with the memory under-utilization in data centers. Disaggregated memory can adapt to dynamically changing memory requirements for the data center applications like data analytics, big data, etc., that require in-memory processing. However, such systems can face high remote memory access latency due to the interconnect speeds. In this paper, we explore a rack-scale disaggregated memory architecture and discuss the various design aspects. We design a trace-driven simulator that combines an event-based interconnect and a cycle-accurate memory simulator to evaluate the performance of disaggregated memory system at the rack scale. Our study shows that not only the interconnect but the contention in the remote memory queues also adds significantly to remote memory access latency. We introduces a memory allocation policy to reduce the latency compared to the conventional policies. We conduct experiments using various benchmarks with diverse memory access patterns. Our study shows encouraging results towards the rack-scale memory disaggregation and acceptable average memory access latency.
Unextendible and uncompletable product bases in every bipartition
Creators: name: Shi, Fei
name: Li, Mao-Sheng
name: Zhang, Xiande
name: Zhao, Qi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Unextendible product basis is an important object in quantum information theory and features a broad spectrum of applications, ranging bound entangled states, quantum nonlocality without entanglement, and Bell inequalities with no quantum violation. A generalized concept called uncompletable product basis also attracts much attention. In this paper, we find some unextendible product bases that are uncompletable product bases in every bipartition, which answers a 19 year-old open question proposed by DiVincenzo et al. [Commun. Math. Phys. 238, 379 (2003)]. As a consequence, we connect such unextendible product bases to local hiding of information and give a sufficient condition for the existence of an unextendible product basis, that is still an unextendible product basis in every bipartition. Our results advance the understanding of the geometry of unextendible product bases.
Large-scale homogeneity and isotropy versus fine-scale condensation. A model based on Muckenhoupt type densities
Creators: name: Aimar, Hugo
name: Morana, Federico
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this brief note we aim to provide, through a well known class of singular densities in harmonic analysis, a simple approach to the fact that the homogeneity of the universe on scales of the order of a hundred millions light years is completely compatible with the fine-scale condensation of matter and energy. We give precise and quantitative definitions of homogeneity and isotropy on large scales. Then we show that Muckenhoupt densities have the ingredients required to a model for the large-scale homogeneity and the fine-scale condensation of the universe. In particular, these densities can take locally infinitely large values (black holes) and at once, in the large scales they are independent of the location. We also show some locally singular densities satisfying the large scale isotropy property.
description: 9 pages, 1 figure. We add a comment on page 5 and two references. The article has been accepted for publication in the Revista de la Union Matematica Argentina
Soja: Der Anbau in Sueddeutschland
Creators: name: Recknagel, Juergen
Publisher: name: Zenodo
Year: 2019
Subjects: legumes

description: Seit der 1980ern wird in Deutschland die Sojabohne angebaut. Der grosse Boom kam aber erst in der vergangenen zehn Jahren. Das volle Potenzial ist nach wir vor noch nicht ausgeschoepft.
Enlargement of filtration and predictable representation property for semi-martingales
Creators: name: Calzolari, Antonella
name: Torti, Barbara
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We present two examples of loss of the predictable representation property for semi-martingales by enlargement of the reference filtration. First of all we show that the predictable representation property for a square-integrable semi-martingale X does not transfer from the reference filtration F to a larger filtration G when the information starts growing up to a positive time. Then we study the case when F coincides with the natural filtration of X and G is obtained by adding the natural filtration of a second square-integrable semi-martingale, Y. We establish conditions under which the triplet (X,Y,[X,Y]) enjoys the predictable representation property with respect to G.
description: to appear on Stochastics
title: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 18, Nr. 2 (1989)
Creators: name: Denkmalpflege In Baden-Württemberg – Nachrichtenblatt Der Landesdenkmalpflege
Publisher: name: University Library Heidelberg
Year: 2014

description: Inhalt
 Zur denkmalpflegerischen Bedeutung des Schlosses Aulendorf, Stadt Aulendorf, Kreis Ravensburg...77-84
 Naturwissenschaften und Archäologische Denkmalpflege (3). Die Archäobotanik...85-96
 Die spätkarolingische Krypta von St. Georg in Reichenau-Oberzell...97-105
 Ein Hauch von Großstadt. Der „Württemberger Hof" in Weikersheim, Main-Tauber-Kreis...106-109
 Säge und Mühle. Die technischen Kulturdenkmale des neuerrichteten Freilichtmuseums Neuhausen ob Eck...110-113
 Personalia...114
 Personalia...114
 Romanik in Baden-Württemberg ; Das Romanische Haus in Seligenstadt...115-117
 Der kurpfälzische Hofbildhauer Paul Egell...117-118
 Anfänge und Ausbreitung der Stuckdekoration im römischen Kirchenraum (1500-1600) ; Studien zur Stuckausstattung im frühen 18. Jahrhundert...118-119
 Mitteilungen ; Quellennachweis für die Abbildungen...119-120
 Unter dem Pflaster liegt Geschichte. Stadtarchäologie in Baden-Württemberg...120
 Veröffentlichungen des Landesdenkmalamtes
 Die Dienststellen des Landesdenkmalamtes