cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The phonon theory of liquid thermodynamics
Creators: name: Bolmatov, Dima
name: Brazhkin, Vadim
name: Trachenko, Kostya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Heat capacity of matter is considered to be its most important property because it holds information about system's degrees of freedom as well as the regime in which the system operates, classical or quantum. Heat capacity is well understood in gases and solids but not in the third state of matter, liquids, and is not discussed in physics textbooks as a result. The perceived difficulty is that interactions in a liquid are both strong and system-specific, implying that the energy strongly depends on the liquid type and that, therefore, liquid energy can not be calculated in general form. Here, we develop a phonon theory of liquids where this problem is avoided. The theory covers both classical and quantum regimes. We demonstrate good agreement of calculated and experimental heat capacity of 21 liquids, including noble, metallic, molecular and hydrogen-bonded network liquids in a wide range of temperature and pressure.
description: 7 pages, 4 figures
Was Pottery a Luxury In Medieval Pisa? A Preliminary Analysis
Creators: name: Giorgio, Marcella
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 37-38, 89-104
description: Archaeological excavations carried out over the last 20-25 years in Pisa have allowed us to understand the medieval and post-medieval urban development of the city, and the resulting discovery of large quantities of pottery provides the opportunity to understand the domestic pottery used in high-status and artisanal households. This paper examines both the changes in ceramic use and the differences between assemblages from these household types during the high and late Middle Ages to determine the extent to which pottery was a luxury in medieval Pisa.
Quantum gravitational Kasner transitions in Bianchi-I spacetime
Creators: name: Gupt, Brajesh
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Due to non-perturbative quantum gravitational effects, the classical big bang singularity is replaced by a quantum big bounce of the mean scale factor in loop quantization of Bianchi-I spacetime. An important issue is to understand various differences in the physical properties of the spacetime across the bounce. We investigate this issue in the context of various geometrical structures, identified by Kasner exponents of the metric, which arise on approach to the singularity in the classical theory. Using effective spacetime description of Bianchi-I model in loop quantum cosmology with dust, radiation and stiff matter, we find that as in the classical theory, geometrical structures such as a cigar or a pancake form, but they are finite and non-singular. Depending on the initial conditions of matter and anisotropies, different geometric structures are possible in the pre- and post-bounce phases in physical evolution. Thus, quantum gravitational effects can cause a Kasner transition in Bianchi-I spacetime, which is not possible at the classical level. Interestingly, we find that not all transitions are allowed at the level of effective dynamics in loop quantum cosmology. We find the selection rules and underlying conditions for all allowed and forbidden transitions. Selection rules suggest that for a given set of initial conditions on anisotropies, occurrence of Kasner transitions follows a distinct pattern, and certain transitions are more favored than others.
description: Four figures added on Kasner transitions. Minor changes. To appear in PRD
Post 1755 Lisbon Earthquake Tiles as Signs of Popular Devotion
Creators: name: Almeida, Mariana
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 37-38, 53-64
description: In Portugal the use of tiles in the 18th century was considerably more intensive than in other European countries. Although tiles were profusely used elsewhere, for example in Spain and the Netherlands, in Portugal tile work became a form of art and a medium for communication and devotion, although, much like pottery, it was considered a lesser art for a long time. This paper addresses a specific form of tile decoration, aimed at popular devotion, which was used in the period following the devastating earthquake and disasters of 1755.
Relativistic corrections and non-Gaussianity in radio continuum surveys
Creators: name: Maartens, Roy
name: Zhao, Gong-Bo
name: Bacon, David
name: Koyama, Kazuya
name: Raccanelli, Alvise
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Forthcoming radio continuum surveys will cover large volumes of the observable Universe and will reach to high redshifts, making them potentially powerful probes of dark energy, modified gravity and non-Gaussianity. Here we extend recent works by analyzing the general relativistic (GR) corrections to the angular power spectrum. These GR corrections to the standard Newtonian analysis of the power spectrum become significant on scales near and beyond the Hubble scale at each redshift. We consider the continuum surveys with LOFAR, WSRT and ASKAP, and examples of continuum surveys with the SKA. We find that the GR corrections are at most percent-level in LOFAR, WODAN and EMU surveys, but they can produce $O(10%)$ changes for high enough sensitivity SKA continuum surveys. The signal is however dominated by cosmic variance, and multiple-tracer observations will be needed to overcome this problem. The GR corrections are suppressed in continuum surveys because of the integration over redshift -- we expect that GR corrections will be enhanced for future SKA HI surveys in which the source redshifts will be known. We also provide predictions for the angular power spectra in the case where the primordial perturbations have local non-Gaussianity. We find that non-Gaussianity dominates over GR corrections, and rises above cosmic variance when $f_{\rm NL}\gtrsim5$ for SKA continuum surveys.
description: 8 pages, 6 figures; Version accepted by JCAP
Additional file 1 of Revisiting the effects of state earned income tax credits on infant health: a quasi-experimental study using contiguous border counties approach
Creators: name: Qian, Haobing
name: Wehby, George L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Supplementary Material 1
Hispano-Moresque Tiles in Portugal: The Collections of Palácio Nacional ae Sintra and Mosteiro de Santa Clara-A-Velha in Coimbra
Creators: name: Coentro, Susana
name: Trindade, Rui
name: Mir�O, Jos�
name: C Alves, Lu�S
name: MC Da Silva, Rui
name: SF Muralha, V�Nia
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 37-38, 65-78
description: This paper examines Hispano-Moresque glazed tiles (15th-16th century) from the collections of Palacio Nacional de Sintra and Mosteiro de Santa Clara-a-Velha, in Portugal. A representative number of tiles from the two collections was analysed by p-PIXE (particle induced X-ray emission), SEM-EDS (scanning electron microscopy with X-ray microanalysis) and p-Raman spectrometry, in order to characterise each collection both chemically and morphologically. This study is included on a wider project concerning the characterisation of Portuguese and Spanish medieval tiles and their provenance.
Quadratic order conditions for bang-singular extremals
Creators: name: Aronna, Maria Soledad
name: Bonnans, J. Frederic
name: Dmitruk, Andrei V.
name: Lotito, Pablo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 49K15

description: This paper deals with optimal control problems for systems affine in the control variable. We consider nonnegativity constraints on the control, and finitely many equality and inequality constraints on the final state. First, we obtain second order necessary optimality conditions. Secondly, we derive a second order sufficient condition for the scalar control case.
description: 41 pages
Ceramic Flooring from the Cistercian Abbey of Santa Maria de Alcobaça, Portugal (13th and 14th Centuries)
Creators: name: Andr� Alves Trindade, Rui
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 37-38, 79-88
description: This paper discusses the 13th-century mosaic floors from the chapels of the church of the Abbey of Santa Maria de Alcobaça. These mosaics follow the formal European Cistercian model, but are unusual in several aspects of their decoration, namely due to their tin and turquoise glazes. An examination of the technology employed in the production of the mosaic floors from the Abbey supports the hypothesis that they were produced locally. It is further argued that these mosaics provide an important strand of evidence through which the introduction of tin glaze on the Peninsula and in north-western Europe can be examined. Continuities in other aspects of the mosaics' decoration are then discussed (e.g. the incised line technique), linking these floors to architectural and design features from other civic and religious buildings throughout Portugal.
title: DEPRECATED: THE PRIMING OF VISUAL FEATURE INTEGRATION AND ILLUSORY CONJUNCTIONS
Creators: name: SMITH, GRAHAM DEREK
Publisher: name: University of Plymouth
Year: 1998

description: Whether non-spatial previewing can interact with the process of integrating visual features and thereby affect the formation of illusory conjunctions was studied. A series of ten experiments were undertaken that employed methods borrowed from the illusory conjunction and visual previewing paradigms. Participants reported the identities of two briefly presented target objects. Preview stimuli were presented prior to the to-be-reported target stimuli. The preview objects and target objects were colour-filled geometric shapes. The effects of two types of non-spatial previewing were investigated; feature previewing and conjunction previewing. In feature previewing the preview stimuli were congruent or incongruent with one of the target stimuli on a single stimulus dimension. The results suggest that feature previewing does not affect the production of illusory conjunctions. In conjunction previewing the preview display contains an object composed of two features that also appear in the subsequent target display. A congruent conjunction preview display contains an object that is identical to one of the target objects. An incongruent conjunction preview display contains an object composed of a colour and a shape that appear in different target objects. The results suggest that incongruent conjunction previews cause more illusory conjunctions than congruent conjunction previews do. Conjunction previews appear to priming of the process of visual feature integration. Alternative explanations of the results were ruled out by subsequent experiments. The finding of the conjunction preview effect has implications for the current theories of visual feature integration and illusory conjunctions; e.g., feature integration theory (Treisman 1990; Treisman & Gelade) and location uncertainty theory (Ashby, Prinzmetal, Ivry & Maddox, 1996; Prinzmetal &. Keysar, 1989).
Neandertaler und Co. Neues zur Steinzeit in Westfalen vom Fundplatz Warendorf
Creators: name: Hoffmann, Almut
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Rezension zu: Neandertaler und Co. Neues zur Steinzeit in Westfalen vom Fundplatz Warendorf. Begleitbuch zur Ausstellung des Westfalischen Museums für Archaologie in Münster. Hrsg. Westfälisches Museum fur Archäologie - Amt für Bodendenkmalpflege - im Auftrag des Landschaftsverbandes Westfalen-Lippe. Münster 1998. 57 Seiten, zahlreiche Farb- und Schwarzweißabbildungen
description: Acta Praehistorica et Archaeologica, Bd. 32 (2000)
The kinetic Sunyaev-Zel'dovich signal from inhomogeneous reionization: a parameter space study
Creators: name: Mesinger, Andrei
name: McQuinn, Matthew
name: Spergel, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: [ABRIDGED] Inhomogeneous reionization acts as a source of arcminute-scale anisotropies in the cosmic microwave background (CMB), the most important of which is the kinetic Sunyaev-Zel'dovich (kSZ) effect. Observational efforts with the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) are poised to detect this signal for the first time. Indeed, recent SPT measurements place a bound on the dimensionless kSZ power spectrum around a multipole of l=3000 of P_tot < 2.8 (6) micro K^2 at 95% C.L., by ignoring (allowing) correlations between the thermal Sunyaev-Zel'dovich (tSZ) effect and the cosmic infrared background (CIB). To interpret these and upcoming observations, we compute the kSZ signal from a suite of ~ 100 reionization models using the publicly available code 21cmFAST. Our physically motivated reionization models are parameterized by the ionizing efficiency of high-redshift galaxies, the minimum virial temperature of halos capable of hosting stars, and the ionizing photon mean free path. We predict the contribution of patchy reionization to be P_patchy = 1.5-3.5 micro K^2. Therefore, even when conservatively adopting a low estimate of the post-reionization signal, P_OV ~ 2 micro K^2, none of our models are consistent with the aggressive 2sigma SPT bound that does not include correlations. This implies that either: (i) the early stages of reionization occurred in a much more homogeneous manner than suggested by the stellar-driven scenarios we explore, such as would be the case if, e.g., very high energy X-rays or exotic particles contributed significantly; and/or (ii) that there is a significant correlation between the CIB and the tSZ. On the other hand, the conservative SPT bound is compatible with all of our models, and is on the boarder of constraining reionization.
description: 15 pages, 12 figures, MNRAS in-press
Can neutral and ionized PAHs be carriers of the UV extinction bump and the diffuse interstellar bands?
Creators: name: Steglich, Mathias
name: Bouwman, Jordy
name: Huisken, Friedrich
name: Henning, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Up to now, no laboratory-based study has investigated polycyclic aromatic hydrocarbon (PAH) species as potential carriers of both the diffuse interstellar bands (DIBs) and the 2175 A UV bump. We examined the proposed correlation between these two features by applying experimental and theoretical techniques on two specific medium-sized/large PAHs (dibenzorubicene C30H14 and hexabenzocoronene C42H18) in their neutral and cationic states. It was already shown that mixtures of sufficiently large, neutral PAHs can partly or even completely account for the UV bump. We investigated how the absorption bands are altered upon ionization of these molecules by interstellar UV photons. The experimental studies presented here were realized by performing matrix isolation spectroscopy with subsequent far-UV irradiation. The main effects were found to be a broadening of the absorption bands in the UV combined with slight red shifts. The position of the complete pi - pi* absorption structure around 217.5 nm, however, remains more or less unchanged which could explain the observed position invariance of the interstellar bump for different lines of sight. This favors the assignment of this feature to the interstellar PAH population. As far as the DIBs are concerned, neither our investigations nor the laboratory studies carried out by other research groups support a possible connection with this class of molecules. Instead, there are reasonable arguments that neutral and singly ionized cationic PAHs cannot be made responsible for the DIBs.
description: 11 pages, 7 figures, 1 table
Unconventional rf photoresponse from a superconducting spiral resonator
Creators: name: Zhuravel, Alexander P.
name: Kurter, Cihan
name: Ustinov, Alexey V.
name: Anlage, Steven M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconducting thin film resonators employing strip geometries show great promise in rf/microwave applications due to their low loss and compact nature. However, their functionality is limited by nonlinear effects at elevated rf/microwave powers. Here, we show that by using a planar spiral geometry carrying parallel currents in adjacent turns, this limitation can be minimized. We investigate the rf current distributions in spiral resonators implemented with Nb thin films via laser scanning microscopy. The rf current density profile along the width of the individual turns of the resonators reveals an unconventional trend: maximum current in the middle of the structure and decaying toward its edges. This unusual behavior is associated with the circular nature of the geometry and the cancellation of magnetic field between the turns, which is favorable for handling high powers since it allows the linear characteristics to persist at high rf current densities.
description: 8 pages, 7 figures
Additional file 1 of Investigation of predictors of severity of diabetes complications among hospitalized patients with diabetes in Florida, 2016–2019
Creators: name: Lord, Jennifer
name: Reid, Keshia
name: Duclos, Chris
name: Mai, Alan
name: Odoi, Agricola
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy
subject: Virology
subject: Computational Biology

description: Supplementary Material 1
Thermonuclear fusion in dense stars: Electron screening, conductive cooling, and magnetic field effects
Creators: name: Potekhin, A. Y.
name: Chabrier, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the plasma correlation effects on nonresonant thermonuclear reactions of carbon and oxygen in the interiors of white dwarfs and liquid envelopes of neutron stars. We examine the effects of electron screening on thermodynamic enhancement of thermonuclear reactions in dense plasmas beyond the linear mixing rule. Using these improved enhancement factors, we calculate carbon and oxygen ignition curves in white dwarfs and neutron stars. The energy balance and ignition conditions in neutron star envelopes are evaluated, taking their detailed thermal structure into account. The result is compared to the simplified "one-zone model," which is routinely used in the literature. We also consider the effect of strong magnetic fields on the ignition curves in the ocean of magnetars.
description: 9 pages, 5 figures. In v2 and v3, typos are corrected in Eqs.(22) and (3), respectively
Wireless body area network node localization using small-scale spatial information
Creators: name: Lo, Geoffrey S.
Publisher: name: University of British Columbia
Year: 2012

description: Deploying wireless body area networks (WBANs) in the long-term at-home monitoring of a patient’s physiological and bio-kinetic conditions has become increasingly prevalent. However, such WBANs do not typically incorporate mechanisms to detect and correct for the possibility of accidentally switching up wearable wireless sensor nodes (W²SNs), where a node assigned to one limb is placed on another, and vice-versa, leading to possible incorrect prognoses from interpreting the data. In this thesis, we present a new scheme to automatically identify and verify the locations of W²SNs in a WBAN. Using small-scale geospatial information, instantaneous atmospheric air pressures at each node are examined and compared to map and match them in physical space. By enhancing the context-awareness of WBANs, this enhancement enables unassisted sensor node placement, providing a practical solution to obtain and continuously monitor node locations at a sufficient resolution to recognize limb placement, without multidimensional fine-grain position information. Only a single atmospheric air pressure sensor (A²PS) is added to each W²SN; compared to existing localization techniques, no beacons or extra nodes are required, enabling an inexpensive and self-contained solution. To quantify and validate the accuracy, consistency and reliability of this localization scheme, a statistical analysis on a set of commercially-available air pressure sensors and an experimental prototype WBAN is conducted to examine the scheme’s performance and limitations. This study has verified that this approach is indeed capable of distinguishing between positions indicative of expected separation between different limbs of the patient’s body. Based on a 60cm separation between nodes, the statistical analysis consistently exceeded 95% accuracy within the confidence interval (CI), demonstrating great promise for incorporation into commercial WBANs. We also present and experimentally demonstrate an enhancement aiming to reduce false-positive (Type I) errors in conventional accelerometer-based on-body fall detection schemes. Our statistical analysis has shown that by continuously monitoring the patient’s limb positions, the W²SN position information would enable the WBAN to better classify ‘fall-like’ motion from actual falls, where the patient requires remote caregiver assistance.
Nonlinear equation for coherent gluon emission
Creators: name: Kutak, Krzysztof
name: Golec-Biernat, Krzysztof
name: Jadach, Stanislaw
name: Skrzypek, Maciej
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Motivated by the regime of QCD explored nowadays at LHC, where both the total energy of collision and momenta transfers are high, we investigate evolution equations of high energy factorization. In order to study such effects like parton saturation in final states one is inevitably led to investigate how to combine physics of the BK and CCFM evolution equations. In this paper we obtain a new exclusive form of the BK equation which suggests a possible form of the nonlinear extension of the CCFM equation.
Constraining stellar assembly and AGN feedback at the peak epoch of star formation
Creators: name: Kimm, Taysun
name: Kaviraj, Sugata
name: Devriendt, Julien
name: Cohen, Seth
name: Windhorst, Rogier
name: Dubois, Yohan
name: Slyz, Adrianne
name: Hathi, Nimish
name: Ryan, Russell
name: O'Connell, Robert
name: Dopita, Michael
name: Silk, Joseph
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study stellar assembly and feedback from active galactic nuclei (AGN) around the epoch of peak star formation (1
description: 6 pages, 4 figures, accepted for publication in MNRAS Letters
Additional file 1 of 21st century (clinical) decision support in nursing and allied healthcare. Developing a learning health system: a reasoned design of a theoretical framework
Creators: name: van Velzen, Mark
name: de Graaf-Waar, Helen I.
name: Ubert, Tanja
name: van der Willigen, Robert F.
name: Muilwijk, Lotte
name: Schmitt, Maarten A.
name: Scheper, Mark C.
name: van Meeteren, Nico L. U.
Publisher: name: figshare
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: Information Systems

description: Additional file 1. Development of a Learning Health System; technical flow.
Hospitalization and Alzheimer's Disease: Results from a Community-Based Study
Creators: name: Albert, Steven M.
name: Costa, Rosanne
name: Merchant, Carol
name: Small, Scott A.
name: Jenders, Robert A.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 1999
Subjects: Neurology
Alzheimer's disease
Hospital care
Aging

description: Background. Prior studies offer conflicting findings on whether Alzheimer's disease (AD) is associated with an increased risk of hospitalization. Methods. We investigated AD and hospitalization in the Washington Heights-Inwood Columbia Aging Project (WHICAP), a community-based study of 2,334 elders in New York City. In 1996, an electronic medical records system was established that allows an e-mail alert to be sent to the research team whenever WHICAP subjects are admitted to Columbia-Presbyterian Medical Center (CPMC), the site of hospital care for the majority of subjects. Results. Of the WHICAP cohort, 13.1% was admitted to CPMC in 21 months of follow-up; 17.5% of AD patients and 11.9% of unaffected subjects were admitted (p < .01). Multivariate logistic regression models showed that more advanced AD (Clinical Dementia Rating scale 3+) was a significant risk factor for hospitalization independently of age, gender, education, comorbid medical conditions, and death in the follow-up period (OR 2.3; 95% CI: 1.1,4.6); subjects with mild or moderate AD did not show a significantly elevated risk. The prevalence of psychiatric symptoms did not differ between AD subjects who were hospitalized in the reporting period and AD subjects who were not hospitalized. Infectious disease was a more common discharge diagnosis for subjects with AD (p < .05). Conclusions. In this community-based cohort, subjects with severe AD were more likely to be hospitalized than unaffected subjects. The increased use of hospital care by these AD patients appears to be specific to AD but is not a result of psychiatric morbidity or end-of-life care. Rather, a greater risk of medical complications that require hospital care, especially infections, appears to be characteristic of severe AD.
title: Zum aktuellen Mehrwert der Erstellung und Analyse von Gestikkorpora in der universitären DaF-Lehrkräfteausbildung - methodologische Überlegungen
Creators: name: Hoffmann, Isabel
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2021

description: Im Kontext neuer digitaler Möglichkeiten, vor allem interaktiver Augmented-Reality- (AR) und Virtual-Reality- (VR) Umgebungen, bilden sich derzeit hoch produktiv neue Paradigmen, wie die embodied cognition beziehungsweise der embodiment-based learning-Ansatz heraus (Mainzer 2017: 26; Mehler-Bicher / Steiger 2014: 20-21). Diese bieten eine ausgezeichnete, bisher aber weitestgehend verkannte Möglichkeit, Schnittstellen zwischen linguistischen, medialen und didaktischen Fragen herzustellen (Castellanos / Pérez 2017: 283; Dörner et al. 2013: 310). Der körperlichen Sprache, wie auch speziell der Gestik, kommt dabei eine verstärkte Bedeutung zu – sowohl, um linguakulturell unterschiedliche Darstellungen im bildlichen Sprachgebrauch zu erklären, als auch, um kognitive Planungsmechanismen bei mündlichen Formulierungen transparent zu machen. Unter linguakulturellen wissenschaftlichen Betrachtungen versteht man den Versuch, ein inhärentes sprachliches und kulturelles System auf der Grundlage interkulturell hermeneutischer Verfahren abzubilden und dieses mit erwerbslinguistischen, kultur- und literaturwissenschaftlichen sowie lernpsychologischen und didaktischen Aspekten in Einklang zu bringen (Roche 2013: 203). In diesem Beitrag wird darauf eingegangen, inwiefern die Anfertigung eines Korpus und die Gestikanalyse in der universitären DaF-Lehrerausbildung einen weitreichenden Mehrwert für die Unterrichtspraxis haben können. Exemplarisch wird dazu eine mit dem Transkriptionstool EXMARaLDA erstellte Ausschnittskollektion der Gestik eines Stadtführers vorgestellt, die dreispurig angelegt ist und mit Miniaturbildern sowie einer verbalen und einer nonverbalen Gestikspur ausgestattet ist.
On the cost of null-control of an artificial advection-diffusion problem
Creators: name: Cornilleau, Pierre
name: Guerrero, Sergio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper we study the null-controllability of an artificial advection-diffusion system in dimension $n$. Using a spectral method, we prove that the control cost goes to zero exponentially when the viscosity vanishes and the control time is large enough. On the other hand, we prove that the control cost tends to infinity exponentially when the viscosity vanishes and the control time is small enough.
description: 16 pages
Neuroinflammation rapidly triggers long-term modulation of synaptic transmission
Creators: name: Zhang, Jingfei
Publisher: name: University of British Columbia
Year: 2012

description: Cognitive dysfunction and abnormal synaptic transmission are main characteristics of various brain disorders, including stroke, trauma and various neurodegenerative diseases. Neuroinflammation, known to influence synaptic function, plays an important role in all these brain disorders. Hypoxia is usually concurrent with neuroinflammation in these brain disorders. In peripheral systems, inflammation and hypoxia are interdependent on each other by sharing pathways at the initiation of downstream pathways leading to inflammatory responses. However, the interaction of inflammation and hypoxia in the CNS, and more importantly, whether this interaction can affect synaptic function, is still largely unknown. In Chapter 3, I performed field recording, whole cell recording, 2 photon imaging and biochemical measurements in acute hippocampal slices and found that inflammatory stimuli, either LPS or Aβ, interact with hypoxia to trigger a fast-onset (within 15 min) LTD of synaptic transmission. This neuroinflammation+hypoxia LTD is unusual in that it is independent of NMDARs, mGluRs or patterned synaptic activity. Neuroinflammatory stimulus activates NADPH oxidase by triggering subunits assembly and translocation to the plasma membrane. Hypoxia increases the level of lactic acid via glycolysis, resulting in an increase of lactic acid/pyruvate ratio and a consequent increase of NADPH/NADP⁺ ratio, which in turn boosts production of superoxide by NADPH oxidase. Superoxide subsequently activates PP2A, and ultimately leads to GluR2-mediated AMPAR endocytosis, resulting in LTD of synaptic transmission. In Chapter 4, I performed field recording and biochemical measurements in acute hippocampal slices and showed that LPS can impair the induction of LTP in a relatively rapid way (1 h pre-incubation). This blockage of LTP is mediated by the activation of microglial TLR4 and its associated MyD88-dependent signaling pathway. IL-1β released from microglia is the major factor in LPS-induced impairment of LTP. Taken together, our study discovered that neuroinflammation can rapidly induce long-term modulation of synaptic transmission through two distinct pathways. These findings represent novel mechanisms in which environmental stressors modulate synaptic transmission. Furthermore, our study contributes to our understanding of synaptic and cognitive dysfunctions in various brain disorders and suggests new therapeutic targets to alleviate memory loss in these disorders.
Sparse matrix-vector multiplication on GPGPU clusters: A new storage format and a scalable implementation
Creators: name: Kreutzer, Moritz
name: Hager, Georg
name: Wellein, Gerhard
name: Fehske, Holger
name: Basermann, Achim
name: Bishop, Alan R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Sparse matrix-vector multiplication (spMVM) is the dominant operation in many sparse solvers. We investigate performance properties of spMVM with matrices of various sparsity patterns on the nVidia "Fermi" class of GPGPUs. A new "padded jagged diagonals storage" (pJDS) format is proposed which may substantially reduce the memory overhead intrinsic to the widespread ELLPACK-R scheme. In our test scenarios the pJDS format cuts the overall spMVM memory footprint on the GPGPU by up to 70%, and achieves 95% to 130% of the ELLPACK-R performance. Using a suitable performance model we identify performance bottlenecks on the node level that invalidate some types of matrix structures for efficient multi-GPGPU parallelization. For appropriate sparsity patterns we extend previous work on distributed-memory parallel spMVM to demonstrate a scalable hybrid MPI-GPGPU code, achieving efficient overlap of communication and computation.
description: 10 pages, 5 figures. Added reference to other recent sparse matrix formats
Familial Aggregation of Alzheimer's Disease among Whites, African Americans, and Carribean Hispanics in Northern Manhattan
Creators: name: Devi, Gayatri
name: Ottman, Ruth
name: Tang, Mingxin
name: Marder, Karen
name: Stern, Yaakov
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 2000
Subjects: Neurology
Families--Health and hygiene
Alzheimer's disease--Patients

description: Background Alzheimer disease (AD) aggregates in families. Objective To compare the familial aggregation and lifetime risk of AD to the age of 90 years in the first-degree relatives of patients with AD and unrelated controls among Caribbean Hispanics, African Americans, and whites in Washington Heights, Manhattan, New York, NY. Methods Family history of AD and demographic information were obtained from informants of 435 patients with probable or possible AD concerning 1577 siblings and parents and from 1094 controls without dementia concerning 3952 siblings and parents. Results Lifetime risk of AD to the age of 90 years was 25.9% in relatives of patients and 19.1% in relatives of controls. Rate ratio (RR) for AD in relatives of patients compared with relatives of controls was 1.5 overall (95% confidence interval [CI], 1.2-1.9), and was greater for siblings (RR, 1.8; 95% CI, 1.2-2.5) than for parents (RR, 1.2; 95% CI, 0.9-1.8). Within ethnic groups, RR for AD among relatives was significantly elevated in whites (RR, 2.0; 95% CI, 1.2-3.3) and Hispanics (RR, 1.5; 95% CI, 1.1-2.1), but the difference did not reach statistical significance in African Americans (RR, 1.4; 95% CI, 0.7-2.7). Risk of AD was greater among relatives who were women compared with men (RR, 1.5; 95% CI, 1.2-1.9). Conclusions Familial aggregation of AD was increased among families of patients compared with those of controls in all 3 ethnic groups. Risk of AD was highest among siblings and women relatives.
Refining the Spin Hamiltonian in the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$ using Single Crystals
Creators: name: Han, Tianheng
name: Chu, Shaoyan
name: Lee, Young S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report thermodynamic measurements of the S=1/2 kagome lattice antiferromagnet ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$, a promising candidate system with a spin-liquid ground state. Using single crystal samples, the magnetic susceptibility both perpendicular and parallel to the kagome plane has been measured. A small, temperature-dependent anisotropy has been observed, where $χ_{z}/ χ_{p} > 1$ at high temperatures and $χ_{z}/ χ_{p} < 1$ at low temperatures. Fits of the high-temperature data to a Curie-Weiss model also reveal an anisotropy. By comparing with theoretical calculations, the presence of a small easy-axis exchange anisotropy can be deduced as the primary perturbation to the dominant Heisenberg nearest neighbor interaction. These results have great bearing on the interpretation of theoretical calculations based on the kagome Heisenberg antiferromagnet model to the experiments on ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$.
description: 4 pages, 4 figures
Investigating the causes of missing field fixed issues from BIM-based construction coordination through semi-structured interviews
Creators: name: Alsuhaibani, Abdullah Khalid
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Building Information Modeling
BIM coordination
Design coordination
Construction coordination
MEP coordination
Field detected issues

description: Although the use of Building Information Modeling (BIM) and automatic clash detection have improved the construction coordination process in construction projects, the industry is still suffering from on-site fixes of issues, which can cause construction delays and cost overruns. In the literature, several research studies have investigated the causes of constructability issues or rework but not focused on how the issues are missed at the construction coordination stage, which is a mitigation strategy that can minimize field detected issues. This research, via expert interviews, determined underlying causes of not capturing field-detected issues during the BIM-based construction coordination process, including: missing model elements, not considering operability or maintainability, and inaccurate as-built model updates were the most mentioned causes. The research findings can benefit industry practitioners by providing the causes and preventive measures that can enhance the ability of capturing issues before they occur in the field. Moreover, this research also provides future researchers with the critical causes that need to be tackled to improve BIM-based construction coordination.
Investigation of bond in unreinforced concrete interfaces for partial depth repairs and new construction
Creators: name: Becker, Maggie Elizabeth
name: 0000-0002-2837-9871
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Concrete
Interface
Bond
Shear strength
Horizontal shear strength

description: This thesis presents an experimental study on the horizontal shear strength of reinforced concrete slabs and beams with unreinforced concrete-to-concrete interfaces. Current design provisions for new construction and repair applications in ACI 318-19 and ACI 562-19 codes attribute a low capacity for concrete-to-concrete interfaces that are unreinforced. Specifically, the nominal strength of an intentionally roughened, unreinforced interface is 80 psi, and an unreinforced interface without intentional roughening is assumed to have no shear strength. The goal of this research is to provide recommendations for redefining horizontal shear provisions for unreinforced interfaces in partial depth repairs and precast construction. To quantify interface strength, experimental tests were performed in two discrete phases: direct shear and direct tensile pull-off tests on slabs, then flexural tests on beams, each of which having differing surface roughnesses and topping slab workability. The roughnesses used for this experimental program was representative of both partial depth repair and new construction. Direct shear strengths from guillotine testing ranged from 400 psi to 1000 psi, with float (smooth) conditions providing the lowest strength and hydrodemolition roughening providing the highest strength. Direct tensile pull-off strengths ranged from 190 psi to 420 psi for toppings made of concrete with moderate workability and different roughnesses, while bond of toppings made of concrete with low workability was so weak that it failed during pull-off test preparations. The average horizontal shear strength along the unreinforced interface of beams subjected to flexure ranged from 530 psi to 550 psi for broom, tine and hydrodemolition roughening conditions. The maximum horizontal shear stress towards the topping ends of these beams were estimated in between 800 psi and 900 psi. However, beam specimens with smoother interfaces (floated and sandblasted) presented signs of debonding prior to flexural testing. The research results indicate that a sound (i.e., not bruised or microcracked by concrete removal), laitance and defect free interface with uniform and sufficiently rough surface texture in combination with well consolidated the repair or topping material are keys to high shear and tensile bond strengths. The results show that unreinforced interfaces with these characteristics can achieve interface shear strengths significantly higher than the ACI nominal shear strength of 80 psi.
title: Towards Novel Sensitised Lanthanide Rotaxane Architectures
title: A Thesis for the Degree of Master's by Research
titleType: Subtitle
Creators: name: Bidder, Abigail
Publisher: name: Lancaster University
Year: 2023
Subjects: lanthanide
luminescence
supramolecular
rotaxane
pseudorotaxane

description: The overall aim of this work is to explore new lanthanide-appended supramolecular architectures and their luminescent capabilities. It will investigate various methodologies for the preparation of molecularly interlocked molecules, taking inspiration from existing literature in the field, with the end goal of analysing how different structures may affect lanthanide luminescent emission. Lanthanide emission spectra typically contain very sharp and defined bands which can change intensity dependent on factors in the cations’ immediate environment; this gives lanthanide-appended supramolecular architectures great potential for use as sensors for pH changes or ion concentration. To allow luminescence to occur in these systems, sensitising chromophores – typically conjugated π electron systems like aromatic phenyl or pyridyl functionalities – must be present and in close proximity to the lanthanide cation within the structure. These functionalities absorb energy from photons of certain wavelengths (typically UV) and the π electrons are consequently excited to a state of higher energy before the transfer of that energy to the ground state lanthanide cation via a non-radiative process. The energy transfer’s efficiency will vary proportionately with the distance from the lanthanide cation to the chromophore, which thus could allow the measurement of conformational changes within the supramolecular structure that may occur in response to changes in the molecule’s environment. One example of this would be the movement of a macrocycle from one axle ‘station’ to another as moieties are protonated or deprotonated as a result of changes in pH. It is hoped that this work will contribute to the eventual introduction of lanthanide-appended supramolecular architectures as sensors and imaging agents in a biological context, with the potential for use in medical settings alongside laboratories.
Additional file 1 of The economic burden of cardiac implantable electronic device infections in Alberta, Canada: a population-based study using validated administrative data
Creators: name: Rennert-May, Elissa
name: Chew, Derek
name: Cannon, Kristine
name: Zhang, Zuying
name: Smith, Stephanie
name: King, Teagan
name: Exner, Derek V.
name: Larios, Oscar E.
name: Leal, Jenine
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Material 1
Characterization of connection details for truss-diaphragm for use in full-scale experiments focused on lateral contribution of gravity connections in steel frames
Creators: name: Schulz, Adam Carl
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Steel
Gravity
Framing
WT
Subassembly
Connection
Experimental

description: Typical structures derive lateral strength and stiffness from only a limited number of lateral load resisting elements. Gravity framing normally accounts for the vast majority of members in a structure and is assumed not to contribute to the lateral resistance of the frame. This assumption is partly due to the perfect pin idealization for gravity connections. However, research has indicated that gravity framing offers a nonnegligible amount of lateral resistance both due to moment resistance in the connections and continuity of gravity columns. In aggregate, the moment resistance of gravity framing may substantially impact the lateral capacity of a structure. This thesis presents the details of a system-level test specimen that will be used to evaluate the contribution of gravity framing to the lateral resistance of a steel building structure. This overall research investigation is an extension of the work published by Donahue (2019) and employs many of the same details. The specimen described herein is a two-bay by three-bay structure that utilizes double-angle shear connections in the direction of loading. This structure represents one floor of a representative building with columns spanning from mid-height of the story below to mid-height of the story above. The specimen will be tested as a bare-steel frame to collect calibration data for forthcoming tests that include composite decking. In addition to explaining the geometry of the specimen, this thesis details computational and experimental testing completed to validate a horizontal-to-vertical connection between a knife plate and a WT section in a top truss diaphragm that is used to distribute lateral loads throughout the specimen. This connection was designed with the intent that the WT section will accommodate bending while limiting permanent deformations in the knife plate. While the knife plate was observed to experience substantial plastic strains in experimental subassembly testing, it was decided that the magnitude of residual deformation sustained by the knife plate would not substantially impact the constructability of subsequent test specimens. Therefore, the detail was used in the full-scale system-level specimen.
An Introduction to Redcliff Ware Jugs Produced in Bristol
Creators: name: Ponsford, Mike
name: Dawson, David P
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 39, 11-16
description: In 1970 medieval pottery production waste and an abundance of post-medieval pottery were recovered from pits during a salvage excavation on Redcliff Hill, Bristol, opposite the church of St Mary Redcliff. The distinctive wheel-thrown pottery type, a successor to Ham Green ware, was thus named Redcliff ware, after the site where it was found. It has also been referred to as Bristol ware. This paper briefly characterises the ware in terms of both fabric and form.