cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A stratospheric mission – design of a conceptual framework to bring weather balloons and STEM into the classroom
Creators: name: Connolly, Cornelia
name: JOHNSON, PATRICK
name: JOHNSON, KEVIN
name: FITZPATRICK, MARY
name: O'Keeffe, Derek T.
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 39
subject: Education

description: Introduction: Integrated STEM education makes learning relevant and applicable, blending the mindset, skillset, and toolset necessary in developing a depth of understanding for science, technology, engineering and mathematics. Methods: Based on the theoretical framework of Kelley and Knowles the ‘Spaceship Earth’ project was designed to engage primary school children in 4th class (ages 9 and 10 years old) in real-world project-based experiments in the classroom that are used to develop collaborative problem-solving skills and a framework for asking and answering scientific questions. This project involved researchers from two Universities and the Irish National Meteorological Service working collaboratively on a high-altitude balloon mission. Results: High-altitude balloons have an established track record of safe and effective use in weather forecasting, astronomy, and STEM outreach. During the project lifecycle the children devised experiments that they launched to the stratosphere using the high-altitude balloons. Once the experiments returned to Earth, the children engaged in analysis and discussion about their experiments that extended and deepened their learning. Discussion: This celestial project framework represents a new dawn of innovation for STEM education and public engagement
On the number of non-zero character values in generalized blocks of symmetric groups
Creators: name: Morotti, Lucia
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Given a generalized $e$-block $B$ of a symmetric group and an $e$-regular conjugacy class $C$, we study the number of irreducible characters in $B$ which do not vanish on $C$ and find lower bounds for it.
Kleinwelka als Wissensarchiv
Creators: name: Kindermann
name: , Lasch
name: , Wagner
Publisher: name: Zenodo
Year: 2022
Subjects: Herrnhut

description: Nora Kindermann (TUD), Alexander Lasch (TUD) und Sarah Wagner (TUD) stellen zum Auftakt der Sommerreise 2022 der Bundesstiftung Baukultur Ergebnisse aus Forschung und Lehre zu Herrnhuter Wissensarchiven am Beispiel Kleinwelkas aus gartenhistorischer, linguistischer & botanischer Perspektive stellvertretend für alle an den Projekten Beteiligten vor. Alle Informationen (Präsentation, Aufzeichnungen, Quellen und Nachweise) unter: https://dhh.hypotheses.org/521.
Several path-following methods for a class of gradient constrained variational inequalities
Creators: name: Hintermüller, M.
name: Rasch, J.
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät
Year: 2015
Subjects: subject: pointwise gradient constraints
subject: Moreau–Yosida regularization
subject: semismooth Newton methods
subject: path-following
subject: 510 Mathematik

description: Path-following splitting and semismooth Newton methods for solv- ing a class of problems related to elasto-plastic material deformations are pro- posed, analyzed and tested numerically. While the splitting techniques result in alternating minimization schemes, which are typically linearly convergent, the proposed Moreau-Yosida regularization based semismooth Newton tech- nique and an associated lifting step yield local superlinear convergence in func- tion space. The lifting step accounts for the fact that the operator associated with the linear system in the Newton iteration need not be boundedly invert- ible (uniformly along the iterates). For devising an efficient update strategy for the path-following parameter regularity properties of the path are studied and utilized within an inexact path-following scheme for all approaches. The paper ends by a report on numerical tests of the different approaches.
Potential theoretic approach to Schauder estimates for the fractional Laplacian
Creators: name: Bucur, Claudia
name: Karakhanyan, Aram L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We present an elementary approach for the proof of Schauder estimates for the equation $(-Δ)^s u(x)=f(x), \,0
description: 14 pages
GateKeeper: A New Hardware Architecture for Accelerating Pre-Alignment in DNA Short Read Mapping
Creators: name: Alser, Mohammed
name: Hassan, Hasan
name: Xin, Hongyi
name: Ergin, Oğuz
name: Mutlu, Onur
name: Alkan, Can
Publisher: name: arXiv
Year: 2016
Subjects: subject: Genomics (q-bio.GN)
subject: Hardware Architecture (cs.AR)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Motivation: High throughput DNA sequencing (HTS) technologies generate an excessive number of small DNA segments -- called short reads -- that cause significant computational burden. To analyze the entire genome, each of the billions of short reads must be mapped to a reference genome based on the similarity between a read and "candidate" locations in that reference genome. The similarity measurement, called alignment, formulated as an approximate string matching problem, is the computational bottleneck because: (1) it is implemented using quadratic-time dynamic programming algorithms, and (2) the majority of candidate locations in the reference genome do not align with a given read due to high dissimilarity. Calculating the alignment of such incorrect candidate locations consumes an overwhelming majority of a modern read mapper's execution time. Therefore, it is crucial to develop a fast and effective filter that can detect incorrect candidate locations and eliminate them before invoking computationally costly alignment operations. Results: We propose GateKeeper, a new hardware accelerator that functions as a pre-alignment step that quickly filters out most incorrect candidate locations. GateKeeper is the first design to accelerate pre-alignment using Field-Programmable Gate Arrays (FPGAs), which can perform pre-alignment much faster than software. GateKeeper can be integrated with any mapper that performs sequence alignment for verification. When implemented on a single FPGA chip, GateKeeper maintains high accuracy (on average >96%) while providing up to 90-fold and 130-fold speedup over the state-of-the-art software pre-alignment techniques, Adjacency Filter and Shifted Hamming Distance (SHD), respectively. The addition of GateKeeper as a pre-alignment step can reduce the verification time of the mrFAST mapper by a factor of 10. Availability: https://github.com/BilkentCompGen/GateKeeper
Phenomenology in minimal theory of massive gravity
Creators: name: De Felice, Antonio
name: Mukohyama, Shinji
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the minimal theory of massive gravity (MTMG) recently introduced. After reviewing the original construction based on its Hamiltonian in the vielbein formalism, we reformulate it in terms of its Lagrangian in both the vielbein and the metric formalisms. It then becomes obvious that, unlike previous attempts in the literature of Lorentz-violating massive gravity, not only the potential but also the kinetic structure of the action is modified from the de Rham-Gabadadze-Tolley (dRGT) massive gravity theory. We confirm that the number of physical degrees of freedom in MTMG is two at fully nonlinear level. This proves the absence of various possible pathologies such as superluminality, acausality and strong coupling. Afterwards, we discuss the phenomenology of MTMG in the presence of a dust fluid. We find that on a flat homogeneous and isotropic background we have two branches. One of them (self-accelerating branch) naturally leads to acceleration without the genuine cosmological constant or dark energy. For this branch both the scalar and the vector modes behave exactly as in general relativity (GR). The phenomenology of this branch differs from GR in the tensor modes sector, as the tensor modes acquire a non-zero mass. Hence, MTMG serves as a stable nonlinear completion of the self-accelerating cosmological solution found originally in dRGT theory. The other branch (normal branch) has a dynamics which depends on the time-dependent fiducial metric. For the normal branch, the scalar mode sector, even though as in GR only one scalar mode is present (due to the dust fluid), differs from the one in GR, and, in general, structure formation will follow a different phenomenology. The tensor modes will be massive, whereas the vector modes, for both branches, will have the same phenomenology as in GR.
description: 21 pages
Resolving charge transfer mechanisms in molecular tunnel junctions using dynamic charge transfer and static current–voltage measurements†
Creators: name: Cao, Liang
name: Zhang, Ziyu
name: THOMPSON, DAMIEN
name: Qi, Dong‐Chen
name: A. Nijhuis, Christian
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 4902
subject: Mathematical physics

description: Understanding charge transfer (CT) dynamics is important for controlling the tunneling mechanism in molecular junctions. Synchrotron-based core-hole clock (CHC) spectroscopy can quantify the femtosecond-scale CT time tCT across the metal–molecule interface, which affects the current density (J) produced with applied bias (V) in the junctions. However, directly determining the tunneling behavior from a comparison of the CHC tCT and the J(V) measurement of a junction requires prior knowledge of the molecular orbitals involved. To solve this problem, we examined CT dynamics across self-assembled monolayers (SAMs) based on oligophenylene ethynylene (OPE) wires with ferrocene (Fc) terminal groups with Au, Ag and Pt bottom electrodes. Density functional theory (DFT) helped identify the donor and acceptor levels, which are typically the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO). The measured J(V) response of the SAM junctions with gallium-indium (EGaIn) alloy as the top electrode demonstrates that the tunneling decay coefficient b provides an intensive parameter to assess CT efficiency. We find that more delocalized molecular wavefunctions (in this case, LUMO+2, with contributions from Fc and OPE) facilitate faster and more efficient CT than more localized acceptor levels (here, the more iron-centered LUMO+1). These orbital-specific effects explain why we measure comparable b values for CT via LUMO+1 and J via HOMO and LUMO at +1 V bias. Our study highlights the utility of tCT measured by CHC in experimentally confirming the orbitals participating in charge transport measurements and shows that higher-lying delocalized orbitals can in some instances dominate over frontier orbitals despite larger energy offset (or increase in tunneling barrier height)
Ferromagnetism and superconductivity with possible $p+ip$ pairing symmetry in partially hydrogenated graphene
Creators: name: Lu, Hong-Yan
name: Hao, Lei
name: Wang, Rui
name: Ting, C. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By means of first-principles calculations, we predict two new types of partially hydrogenated graphene systems: C$_{6}$H$_{1}$ and C$_{6}$H$_{5}$, which are shown to be ferromagnetic (FM) semimetal and FM narrow-gap semiconductor, respectively. When properly doped, the Fermi surface of the two systems consists of an electron pocket or six hole patches in the first Brillouin zone with completely spin-polarized charge carries. If superconductivity exists in these systems, the stable pairing symmetries are shown to be $p+ip$ for electron doped case, and anisotropic $p+ip$ for hole doped case. The predicted systems may provide fascinating platforms for studying the novel properties of ferromagnetism and triplet-pairing superconductivity as well as two-dimensional spintronics.
Die Amerikaner halten die *Indianer für Cananiter […], die schlechterdingsausgerottet werden müssten. Diskursakteursrollen in mehrsprachigenQuellen der Nordamerikamission im ausgehenden 18. Jahrhundert
Creators: name: Lasch, Alexander
Publisher: name: Zenodo
Year: 2020
Subjects: Diskurs
Koloniallinguistik

description: 1782 ereignete sich in den Wirren der Freiheitsbemühungen europäischer Kolonist:innen gegen die alten Kolonialmächte Großbritannien und Frankreich am Ende des Unabhängigkeitskriegs das (zweite) so genannte Gnadenhütten-Massaker – Ziel waren Angehörige der Native Americans im heutigen Pennsylvania. Das Titelzitat, aus der Hand Georg Heinrich Loskiels (1789, 716), ist Ausweis der eigenen Diskursposition und gibt die (vermeintliche) Motivationslage dieser aus Europa kommenden weißen Leute oder Amerikaner an. In der englischen Übersetzung Loskiels, die Christian Ignatius Latrobe 1794 besorgte, wird diese noch drastischer skizziert: The humans behavior oft the [british] Governor at Pittsburg greatly incensed those people, who, according tot he account given the forther Part of this History, represented the *Indians as Canaanites, who without mercy ought to be destroyed from the face oft he earth, and considered America as the land of promise given tot he Christians. (Buch 3, 175f.) Invektive Sprachmuster lassen sich in solchen (Meta-)Narrationen aus Missionskontexten als Perspektivierungen von Diskurspositionen aus verstehen. Wohl diskriminieren in obigen Beispielen die Amerikaner die Native Americans, aber auch Loskiel und Latrobe nehmen aus gesicherter ideologischer Position abwertende Handlungen vor. Wechselseitige Abwertungen konturieren also das diskursive Feld und machen, ohne missionshistorische, missionarslinguistische, oder missionstheologische Kontexte überbetonen zu müssen, die gesellschaftlichen Konfliktlinien im Nordamerika des ausgehenden 18. Jahrhunderts an einer exemplarischen Auseinandersetzung deutlich. Im Vortrag werde ich mich primär mit den Zuweisungen und Charakterisierungen der weißen Leute, der Amerikaner, auseinandersetzen. In einer diskurslinguistischen Analyse wird herausgearbeitet, welche Diskurspositionen und Diskursakteursrollen im deutschen und englischen Text konturiert werden und wie sich die durch Europäer:innen getragene Mission zu europäischen Kolonist:innen (sprachlich) verhält.
 * Diskrimierende Begriffe werden zur kritischen Distanzierung mit Asterisk (das schließt auch Zitate und Buchtitel ein) markiert. Georg Heinrich Loskiel. 1789. Geschichte der Mission der evangelischen Brüder unter den *Indianern in Nordamerika. Christian Ignatius Latrobe. 1794. History of the Moravian Mission among the North American *Indians (Direktübersetzung Loskiel 1789)
Die Amerikaner halten die *Indianer für Cananiter […], die schlechterdingsausgerottet werden müssten. Diskursakteursrollen in mehrsprachigenQuellen der Nordamerikamission im ausgehenden 18. Jahrhundert
Creators: name: Lasch, Alexander
Publisher: name: Zenodo
Year: 2021
Subjects: Diskurs
Koloniallinguistik

description: 1782 ereignete sich in den Wirren der Freiheitsbemühungen europäischer Kolonist:innen gegen die alten Kolonialmächte Großbritannien und Frankreich am Ende des Unabhängigkeitskriegs das (zweite) so genannte Gnadenhütten-Massaker – Ziel waren Angehörige der Native Americans im heutigen Pennsylvania. Das Titelzitat, aus der Hand Georg Heinrich Loskiels (1789, 716), ist Ausweis der eigenen Diskursposition und gibt die (vermeintliche) Motivationslage dieser aus Europa kommenden weißen Leute oder Amerikaner an. In der englischen Übersetzung Loskiels, die Christian Ignatius Latrobe 1794 besorgte, wird diese noch drastischer skizziert: The humans behavior oft the [british] Governor at Pittsburg greatly incensed those people, who, according tot he account given the forther Part of this History, represented the *Indians as Canaanites, who without mercy ought to be destroyed from the face oft he earth, and considered America as the land of promise given tot he Christians. (Buch 3, 175f.) Invektive Sprachmuster lassen sich in solchen (Meta-)Narrationen aus Missionskontexten als Perspektivierungen von Diskurspositionen aus verstehen. Wohl diskriminieren in obigen Beispielen die Amerikaner die Native Americans, aber auch Loskiel und Latrobe nehmen aus gesicherter ideologischer Position abwertende Handlungen vor. Wechselseitige Abwertungen konturieren also das diskursive Feld und machen, ohne missionshistorische, missionarslinguistische, oder missionstheologische Kontexte überbetonen zu müssen, die gesellschaftlichen Konfliktlinien im Nordamerika des ausgehenden 18. Jahrhunderts an einer exemplarischen Auseinandersetzung deutlich. Im Vortrag werde ich mich primär mit den Zuweisungen und Charakterisierungen der weißen Leute, der Amerikaner, auseinandersetzen. In einer diskurslinguistischen Analyse wird herausgearbeitet, welche Diskurspositionen und Diskursakteursrollen im deutschen und englischen Text konturiert werden und wie sich die durch Europäer:innen getragene Mission zu europäischen Kolonist:innen (sprachlich) verhält.
 * Diskrimierende Begriffe werden zur kritischen Distanzierung mit Asterisk (das schließt auch Zitate und Buchtitel ein) markiert. Georg Heinrich Loskiel. 1789. Geschichte der Mission der evangelischen Brüder unter den *Indianern in Nordamerika. Christian Ignatius Latrobe. 1794. History of the Moravian Mission among the North American *Indians (Direktübersetzung Loskiel 1789)
Pointwise Hölder Exponents of the Complex Analogues of the Takagi Function in Random Complex Dynamics
Creators: name: Jaerisch, Johannes
name: Sumi, Hiroki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Complex Variables (math.CV)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 37H10, 37F15

description: We investigate the Hölder regularity of the function $T$ of the probability of tending to one minimal set, the partial derivatives of $T$ with respect to the probability parameters, which can be regarded as complex analogues of the Takagi function, and the higher partial derivatives $C$ of $T.$ Our main result gives a dynamical description of the pointwise Hölder exponents of $T$ and $C$, which allows us to determine the spectrum of pointwise Hölder exponents by employing the multifractal formalism in ergodic theory. Also, we prove that the bottom of the spectrum $α_{-}$ is strictly less than $1$, which allows us to show that the averaged system acts chaotically on the Banach space $C^{α}$ of $α$- Hölder continuous functions for every $α\in (α_{-},1)$, though the averaged system behaves very mildly (e.g. we have spectral gaps) on $C^{β}$ for small $β>0.$
description: Published in Adv. Math. 313 (2017) 839--874. See also http://www.math.shimane-u.ac.jp/~jaerisch/ and http://www.math.h.kyoto-u.ac.jp/~sumi/index.html
Dynamic Planar Voronoi Diagrams for General Distance Functions and their Algorithmic Applications
Creators: name: Kaplan, Haim
name: Mulzer, Wolfgang
name: Roditty, Liam
name: Seiferth, Paul
name: Sharir, Micha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: F.2.2

description: We describe a new data structure for dynamic nearest neighbor queries in the plane with respect to a general family of distance functions. These include $L_p$-norms and additively weighted Euclidean distances. Our data structure supports general (convex, pairwise disjoint) sites that have constant description complexity (e.g., points, line segments, disks, etc.). Our structure uses $O(n \log^3 n)$ storage, and requires polylogarithmic update and query time, improving an earlier data structure of Agarwal, Efrat and Sharir that required $O(n^\varepsilon)$ time for an update and $O(\log n)$ time for a query [SICOMP, 1999]. Our data structure has numerous applications. In all of them, it gives faster algorithms, typically reducing an $O(n^\varepsilon)$ factor in the previous bounds to polylogarithmic. In addition, we give here two new applications: an efficient construction of a spanner in a disk intersection graph, and a data structure for efficient connectivity queries in a dynamic disk graph.
description: 61 pages, 11 figures; a preliminary version appeared in SODA 2017
Integrated quarry rehabilitation strategy for sustainable renaturation in Lebanon
Creators: name: Yacoub, Adel Joseph
Publisher: name: Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät
Year: 2012
Subjects: subject: Renaturierung
subject: Steinbruchtypen
subject: Rehabilitations-Management
subject: DPSIR Rahmenmodel
subject: Renaturation
subject: Quarry types
subject: Rehabilitation management
subject: DPSIR Framework model
subject: 630 Landwirtschaft, Veterinärmedizin
subject: 39 Landwirtschaft, Garten
subject: ZD 61100

description: In der Geschichte Libanons sind Steinbrüche immer für die Gewinnung von Baumaterialien wie Sand, Kies, Steine, Zement usw. genutzt worden. Durch die Komplexität dieses Sektors im Libanon gibt es kaum verfügbare Daten, Erhebungen und Studien über Ausmaß und Auswirkungen der Abbautätigkeit. Deshalb behandelt die vorliegende Untersuchung eines der drängendsten Probleme und legt eine aktuelle Datenübersicht über die Steinbrüche vor. Es ist ein vollständiger und integrierter Überblick über die Steinbrüche im Libanon im Allgemeinen und das Problem ihre Rehabilitation im Besonderen unter Berücksichtigung des schwierigen Themas eines integrierten Steinbruchmanagements in einem nachhaltigen Konzept. Meilensteine und Etappen bei der Etablierung eines Rehabilitationsprogrammes werden auf unterschiedlichen Ebenen wie der öffentliche Sektor, der private Sektor und den öffentlichen Kommunen entwickelt. Um die Nachhaltigkeit des Rehabilitationskonzeptes aufzuzeigen, wurde ein Feldexperiment in einem ehemaligen Steinbruch nördlich von Beirut angelegt. Bei dieser Rehabilitation wurden in die aufgebrachte Bodenschicht Johannisbrotbäume (Ceratonia siliqua) aufgepflanzt. Durch diese Fallstudie konnte die Nachhaltigkeit der Maßnahme für das Management natürlicher Ressourcen geprüft, unterschiedliche Ergebnisse validiert und untersucht werden.
description: Throughout Lebanon’s history, quarries have been used as a means to extract essential construction materials such as sand, aggregates, stone masonry, cement, block stone, and others. Due to complexity of the quarry sector in Lebanon very few data are available, records and studies in this field are limited. Therefore, the presented research tackles one of Lebanon’s most pressing issues and represents the most updated database on quarries in Lebanon. A comprehensive and integrated overview of the quarries issue in Lebanon in general and the problem of rehabilitation in particular are given and the problematical topic of an integrated quarry planning within a sustainable development concept in Lebanon is pointed out. Milestones and landmarks toward the adoption of a setup needed for the proper rehabilitation approach at different levels as public sector, private sector and local communities are developed. In order to demonstrate the rehabilitation concept was realised a field experiment in a closed quarry northerly from Beirut. The rehabilitation was finalised by planting of carob trees (Ceratonia siliqua) in a layer of top soil. By this case study it was possible to address a sustainable procedure for natural resources management, examine and validate.
On the Ambiguity of Interaction and Nonlinear Main Effects in a Regime of Dependent Covariates
Creators: name: Matuschek, Hannes
name: Kliegl, Reinhold
Publisher: name: arXiv
Year: 2015
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The analysis of large experimental datasets frequently reveals significant interactions that are difficult to interpret within the theoretical framework guiding the research. Some of these interactions actually arise from the presence of unspecified nonlinear main effects and statistically dependent covariates in the statistical model. Importantly, such nonlinear main effects may be compatible (or, at least, not incompatible) with the current theoretical framework. In the present literature this issue has only been studied in terms of correlated (linearly dependent) covariates. Here we generalize to nonlinear main effects (i.e., main effects of arbitrary shape) and dependent covariates. We propose a novel nonparametric method to test for ambiguous interactions where present parametric methods fail. We illustrate the method with a set of simulations and with reanalyses (a) of effects of parental education on their children's educational expectations and (b) of effects of word properties on fixation locations during reading of natural sentences, specifically of effects of length and morphological complexity of the word to be fixated next. The resolution of such ambiguities facilitates theoretical progress.
description: 20 pages, 3 figures
Virtuelle Exkursion Kleinwelka
Creators: name: Lasch, Alexander
name: Rummel, Marlene
name: Schuppe, Robert C.
Publisher: name: Zenodo
Year: 2021

description: Vortrag im Kontext der Lessons Learned 3 an der Technischen Universität Dresden: Nachsehen (Youtube) oder Nachhören (Spotify).
Signal of right-handed currents using $B\to K^*\ell^+\ell^-$ observables at the kinematic endpoint
Creators: name: Karan, Anirban
name: Mandal, Rusa
name: Nayak, Abinash Kumar
name: Sinha, Rahul
name: Browder, Thomas E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The decay mode $B\to K^*\ell^+\ell^-$ is one of the most promising modes to probe physics beyond the standard model (SM), since the angular distribution of the decay products enable measurement of several constraining observables. LHCb has recently measured these observables using $3fb^{-1}$ of data as a binned function of $q^2$, the dilepton invariant mass squared. We find that LHCb data implies evidence for right-handed currents, which are absent in the SM. These conclusions are derived in the maximum $q^2$ limit and are free from hadronic corrections. Our approach differs from other approaches that probe new physics at low $q^2$ as it does not require estimates of hadronic parameters but relies instead on heavy quark symmetries that are reliable at the maximum $q^2$ kinematic endpoint.
description: To appear in Phys. Rev. D
Marked Length Spectrum and Arithmeticity
Creators: name: Hao, Yanlong
Publisher: name: University of Illinois at Chicago
Year: 2023

description: This dissertation considers the marked length spectrum of negatively curved closed Rieman- nian manifolds. The marked length spectrum is conjectured to be a complete invariant of the isometric type. We have yet to provide new results in this direction. But instead, show some improvements in the particular case of arithmetic manifolds. Namely, the set of solutions of ℓ(γ) = ℓ(η) is enough to pin down the metric up to homothety. This is the main result in (1). On the other hand, a similar idea leads to a new characterization of arithmetic metrics in the coarsely-geometric sense. The arithmetic metrics are exactly those metrics with infinitely many nontrivial commensurators.
Essays on Organizational Learning Processes and Outcomes in Healthcare
Creators: name: Park, Jisoo
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: classificationCode: 150310
subject: Organisation and Management Theory

description: In my dissertation, consisting of three chapters, I investigate how various mechanisms jointly affect organizational learning in the healthcare sector. The first chapter provides a review of the literature on organizational learning, focusing on how different factors impact four distinct organizational learning processes: search, knowledge creation, retention, and transfer. By categorizing past findings, I identify how the same factor may promote or hinder different organizational learning processes and encourage a more detailed examination of how multiple mechanisms interact to affect organizational learning. In the second chapter, I examine the relationship between individuals' repeated failures and learning. Through a theoretical framework and empirical analysis of cardiothoracic surgeons in U.S. hospitals, I demonstrate an inverted U-shaped relationship between the number of failures and learning. I find that individuals give up learning after a certain number of failures because their motivation to learn decreases despite increasing learning opportunities. This research aims to reconcile inconsistent findings from the literature on individual failure learning and provides insights into the non-monotonic relationship between failure experiences and individual learning. In the third chapter, I explore the impact of contractor employment on organizational learning in terms of adopting an industry's new best practices. Using archival data on heart disease patients in U.S. hospitals, where physicians worked as contractors or full-time employees, I find evidence that organizational learning peaks at a moderate proportion of contractors. I theorize that the integration of diverse knowledge held by contractors and firm-specific knowledge held by full-time employees is most effective at this point. This research contributes to the understanding of how a firm's human capital resource composition affects knowledge transfer and organizational learning—an important topic in light of the rising population of contingent workers. Overall, this dissertation contributes to the literature on organizational learning and the microfoundations of organizational capabilities.
Howe-Moore type theorems for quantum groups and rigid C*-tensor categories
Creators: name: Arano, Yuki
name: de Laat, Tim
name: Wahl, Jonas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We formulate and study Howe-Moore type properties in the setting of quantum groups and in the setting of rigid $C^{\ast}$-tensor categories. We say that a rigid $C^{\ast}$-tensor category $\mathcal{C}$ has the Howe-Moore property if every completely positive multiplier on $\mathcal{C}$ has a limit at infinity. We prove that the representation categories of $q$-deformations of connected compact simple Lie groups with trivial center satisfy the Howe-Moore property. As an immediate consequence, we deduce the Howe-Moore property for Temperley-Lieb-Jones standard invariants with principal graph $A_{\infty}$. These results form a special case of a more general result on the convergence of completely bounded multipliers on the aforementioned categories. This more general result also holds for the representation categories of the free orthogonal quantum groups and for the Kazhdan-Wenzl categories. Additionally, in the specific case of the quantum groups $\mathrm{SU}_q(N)$, we are able, using a result of the first-named author, to give an explicit characterization of the central states on the quantum coordinate algebra of $\mathrm{SU}_q(N)$, which coincide with the completely positive multipliers on the representation category of $\mathrm{SU}_q(N)$.
description: Sections 3, 4 and 7 from the previous version are moved to a forthcoming article
Joint Measurement of Lensing-Galaxy Correlations Using SPT and DES SV Data
Creators: name: Baxter, E. J.
name: Clampitt, J.
name: Giannantonio, T.
name: Dodelson, S.
name: Jain, B.
name: Huterer, D.
name: Bleem, L. E.
name: Crawford, T. M.
name: Efstathiou, G.
name: Fosalba, P.
name: Kirk, D.
name: Kwan, J.
name: Sánchez, C.
name: Story, K. T.
name: Troxel, M. A.
name: Abbott, T. M. C.
name: Abdalla, F. B.
name: Armstrong, R.
name: Benoit-Lévy, A.
name: Benson, B. A.
name: Bernstein, G. M.
name: Bernstein, R. A.
name: Bertin, E.
name: Brooks, D.
name: Carlstrom, J. E.
name: Rosell, A. Carnero
name: Kind, M. Carrasco
name: Carretero, J.
name: Chown, R.
name: Crocce, M.
name: Cunha, C. E.
name: D'Andrea, C. B.
name: da Costa, L. N.
name: Desai, S.
name: Diehl, H. T.
name: Dietrich, J. P.
name: Doel, P.
name: Evrard, A. E.
name: Neto, A. Fausti
name: Flaugher, B.
name: Frieman, J.
name: Gruen, D.
name: Gruendl, R. A.
name: Gutierrez, G.
name: de Haan, T.
name: Holder, G. P.
name: Honscheid, K.
name: Hou, Z.
name: James, D. J.
name: Kuehn, K.
name: Kuropatkin, N.
name: Lima, M.
name: March, M.
name: Marshall, J. L.
name: Martini, P.
name: Melchior, P.
name: Miller, C. J.
name: Miquel, R.
name: Mohr, J. J.
name: Nord, B.
name: Omori, Y.
name: Plazas, A. A.
name: Reichardt, C. L.
name: Romer, A. K.
name: Rykoff, E. S.
name: Sanchez, E.
name: Sevilla-Noarbe, I.
name: Sheldon, E.
name: Smith, R. C.
name: Soares-Santos, M.
name: Sobreira, F.
name: Suchyta, E.
name: Stark, A. A.
name: Swanson, M. E. C.
name: Tarle, G.
name: Thomas, D.
name: Walker, A. R.
name: Wechsler, R. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the correlation of galaxy lensing and cosmic microwave background lensing with a set of galaxies expected to trace the matter density field. The measurements are performed using pre-survey Dark Energy Survey (DES) Science Verification optical imaging data and millimeter-wave data from the 2500 square degree South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. The two lensing-galaxy correlations are jointly fit to extract constraints on cosmological parameters, constraints on the redshift distribution of the lens galaxies, and constraints on the absolute shear calibration of DES galaxy lensing measurements. We show that an attractive feature of these fits is that they are fairly insensitive to the clustering bias of the galaxies used as matter tracers. The measurement presented in this work confirms that DES and SPT data are consistent with each other and with the currently favored $Λ$CDM cosmological model. It also demonstrates that joint lensing-galaxy correlation measurement considered here contains a wealth of information that can be extracted using current and future surveys.
description: 17 pages, 9 figures. Accepted for publication in MNRAS. This version has been revised in response to referee comments
Hardy and Rellich inequalities, identities, and sharp remainders on homogeneous groups
Creators: name: Ruzhansky, Michael
name: Suragan, Durvudkhan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 22E30, 43A80

description: We give sharp remainder terms of $L^{p}$ and weighted Hardy and Rellich inequalities on one of most general subclasses of nilpotent Lie groups, namely the class of homogeneous groups. As consequences, we obtain analogues of the generalised classical Hardy and Rellich inequalities and the uncertainty principle on homogeneous groups. We also prove higher order inequalities of Hardy-Rellich type, all with sharp constants. A number of identities are derived including weighted and higher order types.
description: 23 pages; a revised version
Quantum simulators based on the global collective light-matter interaction
Creators: name: Caballero-Benitez, Santiago F.
name: Mazzucchi, Gabriel
name: Mekhov, Igor B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that coupling ultracold atoms in optical lattices to quantized modes of an optical cavity leads to quantum phases of matter, which at the same time posses properties of systems with both short- and long-range interactions. This opens perspectives for novel quantum simulators of finite-range interacting systems, even though the light-induced interaction is global (i.e. infinitely long range). This is achieved by spatial structuring of the global light-matter coupling at a microscopic scale. Such simulators can directly benefit from the collective enhancement of the global light-matter interaction and constitute an alternative to standard approaches using Rydberg atoms or polar molecules. The system in the steady state of light induces effective many-body interactions that change the landscape of the phase diagram of the typical Bose-Hubbard model. Therefore, the system can support non-trivial superfluid states, bosonic dimer, trimers, etc. states and supersolid phases depending on the choice of the wavelength and pattern of the light with respect to the classical optical lattice potential. We find that by carefully choosing the system parameters one can investigate diverse strongly correlated physics with the same setup, i.e., modifying the geometry of light beams. In particular, we present the interplay between the density and bond (or matter-wave coherence) interactions. We show how to tune the effective interaction length in such a hybrid system with both short-range and global interactions.
description: Final version
Extended eigenvarieties for overconvergent cohomology
Creators: name: Johansson, Christian
name: Newton, James
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F85

description: Recently, Andreatta, Iovita and Pilloni have constructed spaces of overconvergent modular forms in characteristic p, together with a natural extension of the Coleman-Mazur eigencurve over a compactified (adic) weight space. Similar ideas have also been used by Liu, Wan and Xiao to study the boundary of the eigencurve. This all goes back to an idea of Coleman. In this article, we construct natural extensions of eigenvarieties for arbitrary reductive groups G over a number field which are split at all places above p. If G is GL(2)/Q, then we obtain a new construction of the extended eigencurve of Andreatta-Iovita-Pilloni. If G is an inner form of GL(2) associated to a definite quaternion algebra, our work gives a new perspective on some of the results of Liu-Wan-Xiao. We build our extended eigenvarieties following Hansen's construction using overconvergent cohomology. One key ingredient is a definition of locally analytic distribution modules which permits coefficients of characteristic p (and mixed characteristic). When G is GL(n) over a totally real or CM number field, we also construct a family of Galois representations over the reduced extended eigenvariety.
description: Updated version incorporating a correction to Lemma 2.1.6. The main results are unaffected (after small modifications to some arguments). A separate erratum will be posted on the journal web page
Quantifying high dimensional entanglement with two mutually unbiased bases
Creators: name: Erker, Paul
name: Krenn, Mario
name: Huber, Marcus
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive a framework for quantifying entanglement in multipartite and high dimensional systems using only correlations in two unbiased bases. We furthermore develop such bounds in cases where the second basis is not characterized beyond being unbiased, thus enabling entanglement quantification with minimal assumptions. Furthermore, we show that it is feasible to experimentally implement our method with readily available equipment and even conservative estimates of physical parameters.
description: 17 pages, 1 figure
On the equivalence between $Θ_{n}$-spaces and iterated Segal spaces
Creators: name: Haugseng, Rune
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D05, 55U40

description: We give a new proof of the equivalence between two of the main models for $(\infty,n)$-categories, namely the $n$-fold Segal spaces of Barwick and the $Θ_{n}$-spaces of Rezk, by proving that these are algebras for the same monad on the $\infty$-category of $n$-globular spaces. The proof works for a broad class of $\infty$-categories that includes all $\infty$-topoi.
description: 15 pages, v2: accepted version
Fourier-space combination of Planck and Herschel images
Creators: name: Abreu-Vicente, J.
name: Stutz, A.
name: Henning, Th.
name: Keto, E.
name: Ballesteros-Paredes, J.
name: Robitaille, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Herschel has revolutionized our ability to measure column densities (N$_{\rm H}$) and temperatures (T) of molecular clouds thanks to its far infrared multiwavelength coverage. However, the lack of a well defined background intensity level in the Herschel data limits the accuracy of the N$_{\rm H}$ and T maps. We provide a method that corrects the missing Herschel background intensity levels using the Planck model for foreground Galactic thermal dust emission. We present a Fourier method that combines the publicly available Planck model on large angular scales with the Herschel images on smaller angular scales. We apply our method to two regions spanning a range of Galactic environments: Perseus and the Galactic plane region around $l = 11°$ (HiGal--11). We post-process the combined dust continuum emission images to generate column density and temperature maps. We compare these to previously adopted constant--offset corrections. We find significant differences ($\gtrsim$20\%) over significant ($\sim$15\%) areas of the maps, at low column densities ($N_{\rm H}\lesssim10^{22}$\,cm$^{-2}$) and relatively high temperatures ($T\gtrsim20$\,K). We also apply our method to synthetic observations of a simulated molecular cloud to validate our method. Our method successfully corrects the Herschel images, including both the constant--offset intensity level and the scale-dependent background variations measured by Planck. Our method improves the previous constant--offset corrections, which did not account for variations in the background emission levels.
description: Paper accepted for publications in A&A
Non-Affine Displacements and the Non-Linear Response of a Strained Amorphous Solid
Creators: name: Saw, Shibu
name: Abraham, Sneha
name: Harrowell, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We demonstrate that irreversible structural reorganization is not necessary for the observation of yield behaviour in an amorphous solid. While the majority of solids strained to their yield point do indeed undergo an irreversible reorganization, we find a significant fraction of solids exhibit yield via a reversible strain. We also demonstrate that large instantaneous strains in excess of the yield stress can result in complete stress relaxation, a result of the large non-affine motions driven by the applied strain. The empirical similarity of the dependence of the ratio of stress over strain on the non-affine mean squared displacement with that for the shear modulus obtained from quiescent liquid at non-zero temperature supports the proposition that rigidity depends on the size of the sampled configurational space only, and is insensitive as to how this space is sampled.
The Galois coaction on $ϕ^4$ periods
Creators: name: Panzer, Erik
name: Schnetz, Oliver
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We report on calculations of Feynman periods of primitive log-divergent $ϕ^4$ graphs up to eleven loops. The structure of $ϕ^4$ periods is described by a series of conjectures. In particular, we discuss the possibility that $ϕ^4$ periods are a comodule under the Galois coaction. Finally, we compare the results with the periods of primitive log-divergent non-$ϕ^4$ graphs up to eight loops and find remarkable differences to $ϕ^4$ periods. Explicit results for all periods we could compute are provided in ancillary files.
description: extensive data sets for phi^4 periods up to 11 loops (complete up to 7 loops) and non-phi^4 periods up to 8 loops are attached as ancillary files; v2: several clarifications and examples added
Time scale of stationary decoherence
Creators: name: Polonyi, Janos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The decoherence of a test particle interacting with an ideal gas is studied by the help of the effective Lagrangian, derived in the leading order of the perturbation expansion and in order $\ord{\partial^2_t}$. The stationary decoherence time is found to be comparable to or longer than the diffusion time. The decoherence time reaches its minimal value for classical, completely decohered environment, suggesting that physical decoherence is slowed down as compared with diffusion by the quantum coherence of the environment.
description: 29 pages, 3 figures, to appear in Phys. Rev. A
Set-membership improved normalized subband adaptive filter algorithms for acoustic echo cancellation
Creators: name: Yu, Yi
name: Zhao, Haiquan
name: Chen, Badong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In order to improve the performances of recently-presented improved normalized subband adaptive filter (INSAF) and proportionate INSAF algorithms for highly noisy system, this paper proposes their set-membership versions by exploiting the theory of set-membership filtering. Apart from obtaining smaller steady-state error, the proposed algorithms significantly reduce the overall computational complexity. In addition, to further improve the steady-state performance for the algorithms, their smooth variants are developed by using the smoothed absolute subband output errors to update the step sizes. Simulation results in the context of acoustic echo cancellation have demonstrated the superiority of the proposed algorithms.
description: 22 pages,8 figures, 3 tables,accepted by IET signal processing on 27-Jul-2017
Simplification of a Commercially Available Serum
Creators: name: Linden, A. C. Von Der
name: Twisk, Ch. Van
name: Kok, P. T. M.
Publisher: name: Kooperation de Gruyter
Year: 1985
Subjects: subject: 540 Chemie

description: The spectrophotometric method for the determination of angiotensin-converting enzyme in serum usin p-hydroxyhippuryl-L-histidyl-L-leucine as substrate is commercially available as a test kit. It shows excellent linearity over the whole range of catalytic concentration found in serum. We describe several modificatios of this method so simplify and economize the precedure.