cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Possible episodic infall towards a compact disk in B335
Creators: name: Bjerkeli, Per
name: Ramsey, Jon P.
name: Harsono, Daniel
name: Plunkett, Adele
name: Li, Zhi-Yun
name: van der Wiel, Matthijs H. D.
name: Calcutt, Hannah
name: Jørgensen, Jes K.
name: Kristensen, Lars E.
Publisher: name: Zenodo
Year: 2023

description: Previous observations of the Class 0 source B335 indicate active infall, identified through molecular lines such as HCO+, HCN, and CO, with no rotational disk observed beyond roughly 12 astronomical units (au). This study investigates the early stages of protostellar evolution and disk formation in B335 by mapping the gas infall region and its kinematics.
We employed high resolution 13CO data from the Atacama Large Millimeter/submillimeter Array (ALMA), merged with archival short-baseline data, to produce a high-fidelity image of the infall in B335. Additionally, we revisited the Band 6 continuum images, to examine the distribution of dust close to B335. The continuum emission reveals an elliptical shape (10x7 au) oriented consistent with a forming disk. Infall velocities suggest asymmetric infall, mainly from the north and south, with velocities exceeding what would be expected from a free-fall scenario. Three-dimensional radiative transfer models suggest that varying infall velocities could explain for these kinematics.
The study suggests that a disk is forming in B335 with gas falling towards it. However, further kinematically resolved data is required to confirm a rotationally supported disk around this protostar. The high infall velocities we measure, complicate the straightforward application of magnetic braking theory, hinting instead to a pressure gradient allowing velocity variations in the area.
title: Berichterstattung in Jahresabschlüssen von Unternehmen lässt Rückschlüsse auf deren Engagement für Gleichstellung zu
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Thompson, Philipp Alexander
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J78 Labor Discrimination: Public Policy
subject: M12 Personnel Management; Executive Compensation
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: accountability
subject: board composition
subject: board diversity
subject: boards of directors
subject: CEOs
subject: corporate boards
subject: corporate governance
subject: CSR
subject: diversity
subject: executive boards
subject: female directors
subject: gender equality
subject: gender quota
subject: Germany
subject: leadership positions
subject: managers
subject: non-financial disclosure
subject: non-financial reporting
subject: private companies
subject: public companies
subject: supervisory boards

description: Im Rahmen ihrer Jahresabschlüsse müssen viele Unternehmen in Deutschland nicht nur über ihre finanziellen Kennzahlen berichten. Seit einigen Jahren verlangt der Gesetzgeber vermehrt auch Auskünfte zu nichtfinanziellen Aspekten wie der Beteiligung von Frauen an Führungspositionen. Dieser zweite Teil des DIW Managerinnen-Barometers 2023 zeigt auf Basis einer quantitativen Textanalyse von Unternehmensberichten, dass die großen börsennotierten Konzerne in Deutschland die Vorgaben sehr unterschiedlich umsetzen. Zwar hat die Berichterstattung über Frauen und Führungspositionen entsprechend der Vorgaben im Untersuchungszeitraum von 2009 bis 2020 insgesamt stark zugenommen. Allerdings treten auch deutliche Unterschiede in der Themenschwerpunktsetzung zu Tage: So findet sich eine gleichstellungsorientierte Gruppe von Unternehmen, die umfangreich über konkrete Maßnahmen zur Erhöhung des Frauenanteils in Führungspositionen berichtet. Diese Gruppe weist eine deutlich höhere Beteiligung von Frauen im Aufsichtsrat auf als Unternehmen, die eher complianceorientiert berichten und in erster Linie daran interessiert scheinen, die gesetzlichen Vorgaben zu erfüllen. Die Berichterstattung der Unternehmen zu Frauen und Führungspositionen ist also ein Indikator und damit nützliches Signal nach außen, wie ernst es Unternehmen mit der Gleichstellung ist.
description: DIW Wochenbericht, 90 (2023), 3/4, S. 34-41
Rigidification of algebras over essentially algebraic theories
Creators: name: Rosicky, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: Badzioch and Bergner proved a rigidification theorem saying that each homotopy simplicial algebra is weakly equivalent to a simplicial algebra. The question is whether this result can be extended from algebraic theories to finite limit theories and from simplicial sets to more general monoidal model categories. We will present some answers to this question.
description: The proof of Theorem 3.3 is corrected
Robust nonlocality tests with displacement-based measurements
Creators: name: Brask, Jonatan Bohr
name: Chaves, Rafael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Lately, much interest has been directed towards designing setups that achieve decisive tests of local realism. Here we present Bell tests with measurements based on linear optical displacements and single-photon detection. The scheme displays good tolerance to loss. In particular, for entangled squeezed states, we find thresholds compatible with current efficiencies of detectors and sources. Furthermore, the scheme is easily extendible to any number of observers, allowing observation of multipartite nonlocality for a single photon shared among multiple modes. We also consider the case of atom-photon entanglement, where the loss threshold can be lowered further, as well as local filters compensating transmission and coupling inefficiencies at the source.
description: 5 pages, 2 figures, significant content changes from v1, titled updated
title: Erneut mehr Frauen in Vorständen großer Unternehmen – durch Beteiligungsgebot angestoßene Dynamik lässt aber nach
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J16 Economics of Gender; Non-labor Discrimination
subject: J59 Labor-Management Relations, Trade Unions, and Collective Bargaining: Other
subject: J78 Labor Discrimination: Public Policy
subject: L21 Business Objectives of the Firm
subject: L32 Public Enterprises; Public-Private Enterprises
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: corporate boards
subject: board composition
subject: boards of directors
subject: board diversity
subject: Europe
subject: women directors
subject: executive directors
subject: gender equality
subject: gender quota
subject: Germany
subject: management
subject: private companies
subject: public companies
subject: supervisory boards
subject: executive boards
subject: CEOs
subject: women
subject: finance industry
subject: financial sector
subject: private and public banks
subject: insurance companies

description: In den Vorständen und Aufsichtsräten großer Unternehmen in Deutschland waren im vergangenen Jahr erneut mehr Frauen vertreten als zuvor. Gleichwohl ließ die Dynamik insgesamt wieder nach. Das gilt insbesondere für die Vorstände, wie das neueste DIW Managerinnen-Barometer zeigt. Nachdem es bei den umsatzstärksten 200 Unternehmen von 2020 auf 2021 noch einen größeren Sprung gab, ging es 2022 nur noch um knapp einen weiteren Prozentpunkt auf einen Frauenanteil im Vorstand von nun knapp 16 Prozent nach oben. Mit größeren Steigerungen voran gingen lediglich die DAX-40-Unternehmen (erstmals mehr als 20 Prozent Frauen im Vorstand) und die Unternehmen mit Bundesbeteiligung (erstmals mehr als 30 Prozent Frauen im Vorstand). Ein ähnliches Bild zeigte sich – wenngleich auf höherem Niveau – in den Aufsichtsräten. Die Entwicklung lässt darauf schließen, dass die vom Mindestbeteiligungsgebot für Vorstände betroffenen Unternehmen die seit 2021 geltende gesetzliche Regelung zügig umgesetzt haben, nun aber mit ihren Bemühungen schon wieder nachlassen. Die Politik hat zuletzt – vor allem mit den beiden Führungspositionen-Gesetzen – die Voraussetzungen für mehr Frauen in Spitzengremien deutlich verbessert. Die Unternehmen müssen nun nachlegen, denn Geschlechterparität liegt vielerorts noch immer in weiter Ferne. Vor allem sollten sich die Unternehmen bemühen, eine inklusive Arbeitskultur zu schaffen.
description: DIW Wochenbericht, 90 (2023), 3/4, S. 22-33
A note on symmetry reductions of the Lindblad equation: transport in constrained open spin chains
Creators: name: Buca, Berislav
name: Prosen, Tomaz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study quantum transport properties of an open Heisenberg XXZ spin 1/2 chain driven by a pair of Lindblad jump operators satisfying a global `microcanonical' constraint, i.e. conserving the total magnetization. We will show that this system has an additional discrete symmetry which is particular to the Liouvillean description of the problem. Such symmetry reduces the dynamics even more than what would be expected in the standard Hilbert space formalism and establishes existence of multiple steady states. Interestingly, numerical simulations of the XXZ model suggest that a pair of distinct non-equilibrium steady states becomes indistinguishable in the thermodynamic limit, and exhibit sub-diffusive spin transport in the easy-axis regime of anisotropy Delta > 1.
description: 14 pages with 5 pdf figures, revised version, as accepted by New Journal of Physics
title: Weg zur Geschlechterparität in Spitzengremien bleibt weit – Unternehmen sind am Zug: Editorial
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Thompson, Philipp Alexander
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J16 Economics of Gender; Non-labor Discrimination
subject: J59 Labor-Management Relations, Trade Unions, and Collective Bargaining: Other
subject: J78 Labor Discrimination: Public Policy
subject: L21 Business Objectives of the Firm
subject: L32 Public Enterprises; Public-Private Enterprises
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: M12 Personnel Management; Executive Compensation
subject: corporate boards
subject: board composition
subject: boards of directors
subject: board diversity
subject: Europe
subject: women directors
subject: executive directors
subject: gender equality
subject: gender quota
subject: Germany
subject: management
subject: private companies
subject: public companies
subject: supervisory boards
subject: executive boards
subject: CEOs
subject: women
subject: finance industry
subject: financial sector
subject: private and public banks
subject: insurance companies
subject: accountability
subject: corporate governance
subject: CSR
subject: diversity
subject: female directors
subject: leadership positions
subject: managers
subject: non-financial disclosure
subject: non-financial reporting

description: DIW Wochenbericht, 90 (2023), 3/4, S. 20-21
Demonstration of K-Kbar, B-Bbar, and D-Dbar Transitions with a Pair of Coupled Pendula
Creators: name: Schubert, Klaus R.
name: Stiewe, Jürgen
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Classical Physics (physics.class-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: A setup of two coupled and damped pendula is used to demonstrate the main features of transitions beween neutral K, D, B mesons and their respective antiparticles, including CP violation in K Kbar transitions. The transitions are described by two-state Schrödinger equations. Since the real parts of their solutions obey the same differential equations as the pendula coordinates, the pendulum motions can be used to represent the meson transitions. Video clips of the motions are attached as supplementary material.
description: 15 pages, 6 figures
Apion rubiginosum Grill 1893
Creators: name: Ghahari, Hassan
name: Colonnelli, Enzo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Apionidae
Apion
Apion rubiginosum

description: Apion rubiginosum Grill, 1893
Distribution in Iran. Iran (no exact locality cited) (Alonso-Zarazaga et al. 2017).
General distribution. Algeria, Armenia, Austria, Azerbaijan, Bosnia Herzegovina, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Iran, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Portugal, European Russia, Slovakia, Spain, Sweden, Switzerland, Syria, Turkey, Turkmenistan, Ukraine.
description: Published as part of Ghahari, Hassan & Colonnelli, Enzo, 2020, An annotated checklist of the Iranian Brentidae (Coleoptera: Curculionoidea), pp. 151-178 in Zootaxa 4759 (2) on page 153, DOI: 10.11646/zootaxa.4759.2.1, http://zenodo.org/record/3737365
Nonlinear adiabatic response of interacting quantum dots
Creators: name: Kashuba, Oleksiy
name: Schoeller, Herbert
name: Splettstoesser, Janine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a generic method in Liouville space to describe the dissipative dynamics of coherent interacting quantum dots with adiabatic time dependence beyond linear response. We show how the adiabatic response can be related to effective quantities known from real-time renormalization group methods for stationary quantities. We propose the study of a generalized $RC$-time as a characteristic time scale. We apply the method to the interacting resonant level model and calculate the nonlinear adiabatic charge response to time-dependent gate voltages, tunneling barriers and Coulomb interaction. The generalized $RC$-time is found to acquire a unique form in all cases, in contrast to the capacitance and the charge relaxation resistance. We discuss the observability of the effects in molecular systems and cold atom setups.
description: 6 pages
Testing quasilinear modified Newtonian dynamics in the Solar System
Creators: name: Galianni, Pasquale
name: Feix, Martin
name: Zhao, Hongsheng
name: Horne, Keith
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A unique signature of the modified Newtonian dynamics (MOND) paradigm is its peculiar behavior in the vicinity of the points where the total Newtonian acceleration exactly cancels. In the Solar System, these are the saddle points of the gravitational potential near the planets. Typically, such points are embedded into low-acceleration bubbles where modified gravity theories a` la MOND predict significant deviations from Newton's laws. As has been pointed out recently, the Earth-Sun bubble may be visited by the LISA Pathfinder spacecraft in the near future, providing a unique occasion to put these theories to a direct test. In this work, we present a high-precision model of the Solar System's gravitational potential to determine accurate positions and motions of these saddle points and study the predicted dynamical anomalies within the framework of quasi-linear MOND. Considering the expected sensitivity of the LISA Pathfinder probe, we argue that interpolation functions which exhibit a "faster" transition between the two dynamical regimes have a good chance of surviving a null result. An example of such a function is the QMOND analog of the so-called simple interpolating function which agrees well with much of the extragalactic phenomenology. We have also discovered that several of Saturn's outermost satellites periodically intersect the Saturn-Sun bubble, providing the first example of Solar System objects that regularly undergo the MOND regime.
description: 18 pages, 21 figures. Submitted to Physical Review D
Reversible room-temperature ferromagnetism in Nb-doped SrTiO3 single crystals
Creators: name: Liu, Z. Q.
name: Lu, W. M.
name: Lim, S. L.
name: Qiu, X. P.
name: Bao, N. N.
name: Motapothula, M.
name: Yi, J. B.
name: Yang, M.
name: Dhar, S.
name: Venkatesan, T.
name: Ariando
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The search for oxide-based room-temperature ferromagnetism has been one of the holy grails in condensed matter physics. Room-temperature ferromagnetism observed in Nb-doped SrTiO3 single crystals is reported in this Rapid Communication. The ferromagnetism can be eliminated by air annealing (making the samples predominantly diamagnetic) and can be recovered by subsequent vacuum annealing. The temperature dependence of magnetic moment resembles the temperature dependence of carrier density, indicating that the magnetism is closely related to the free carriers. Our results suggest that the ferromagnetism is induced by oxygen vacancies. In addition, hysteretic magnetoresistance was observed for magnetic field parallel to current, indicating that the magnetic moments are in the plane of the samples. The x-ray photoemission spectroscopy, the static time-of-flight and the dynamic secondary ion mass spectroscopy and proton induced x-ray emission measurements were performed to examine magnetic impurities, showing that the observed ferromagnetism is unlikely due to any magnetic contaminant.
description: 6 pages, 6 figures
D 3.3 Intervention measures inventory
Creators: name: M. Swanenburg And T.J. Hagenaars
Publisher: name: Zenodo
Year: 2021
Subjects: MoMIR-PPC, Salmonella, poultry, control measure,

description: OHEJP MoMIR-PPC Overview of measures against Salmonella at the poultry primary production level
title: Gerhard von Mastricht
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Gerhard von Mastricht as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Entropic trade-off relations for quantum operations
Creators: name: Roga, Wojciech
name: Puchała, Zbigniew
name: Rudnicki, Łukasz
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Spectral properties of an arbitrary matrix can be characterized by the entropy of its rescaled singular values. Any quantum operation can be described by the associated dynamical matrix or by the corresponding superoperator. The entropy of the dynamical matrix describes the degree of decoherence introduced by the map, while the entropy of the superoperator characterizes the a priori knowledge of the receiver of the outcome of a quantum channel Phi. We prove that for any map acting on a N--dimensional quantum system the sum of both entropies is not smaller than ln N. For any bistochastic map this lower bound reads 2 ln N. We investigate also the corresponding Rényi entropies, providing an upper bound for their sum and analyze entanglement of the bi-partite quantum state associated with the channel.
description: 10 pages, 4 figures
title: Mateov (Matteof)
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Mateov (Matteof) as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Reale Rückgänge werden wir wohl in allen Baubranchen sehen: Interview
Creators: name: Pagenhardt, Laura
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023

description: DIW Wochenbericht, 90 (2023), 1/2, S. 15
title: Oded Louis Mathion
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Oded Louis Mathion as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
The strength of the sash : the Métis people and the British Columbia child welfare system
Creators: name: Canada, Deborah
Publisher: name: University of British Columbia
Year: 2012

description: The Strength of the Sash: The Métis and the Child and Family Welfare System in BC presents a Métis perspective on the Ministry of Children and Family Development (MCFD). Furthermore, this dissertation articulates a Métis alternative to MCFD services and programs based on 20 Métis research participants’ stories. These participants are actively engaged in the Métis community as Elders, leaders, and social workers. This alternative is called the Métis People’s Child Welfare Model. One of the major concerns for many Métis people in this province is the disappearance of our children when these children are taken into the care of MCFD. By disappearance I mean that our children, once taken into the system, are misidentified as Aboriginal or even non-Aboriginal. Once identified in these terms, Métis children are placed outside of their cultural environment, often in non-Métis homes without any cultural support. Sometimes these placements sever our children’s ties to the Métis community. This dissertation addresses those missing children and the problems associated with the provincial government’s use of the term “Aboriginal,” not only in practice, but in its legislation and in its policies. More than a simple critique, however, this dissertation presents a Métis worldview and from that worldview develops the Métis People’s Child Welfare Model. This model suggests some of the ways that Ministry workers can begin to understand Métis communities. The Métis People’s Child Welfare Model recognizes that the Métis people in this province have kept our traditions, our ways and our worldview alive, despite continuing colonization. Our family systems are cracked but not broken by colonization. This Model maintains our ways of living and asserts that we have the cultural resources to best care for our children.
Vortex and droplet in holographic D-wave superconductors
Creators: name: Gao, Dongfeng
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate non-trivial localized solutions of the condensate in a (2+1)-dimensional D-wave holographic superconductor model in the presence of a background magnetic field. The calculation is done in the context of the (3+1)-dimensional dual gravity theory of a charged massive spin-2 field in an AdS black hole background. By using numeric techniques, we find both vortex and droplet solutions. These solutions are important for studying the full phase diagram of D-wave superconductors.
description: 9 pages, 8 figures, several references were added, to appear in Phys. Lett. A
Apion strigipenne Schilsky 1902
Creators: name: Ghahari, Hassan
name: Colonnelli, Enzo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Apionidae
Apion
Apion strigipenne

description: Apion strigipenne Schilsky, 1902
Distribution in Iran. Golestan (Sakenin et al. 2018).
General distribution. Afghanistan, Armenia, Azerbaijan, Iran, Tadzhikistan, Turkey, Turkmenistan.
description: Published as part of Ghahari, Hassan & Colonnelli, Enzo, 2020, An annotated checklist of the Iranian Brentidae (Coleoptera: Curculionoidea), pp. 151-178 in Zootaxa 4759 (2) on page 153, DOI: 10.11646/zootaxa.4759.2.1, http://zenodo.org/record/3737365
title: Andrey Artamonovich Matveev
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Andrey Artamonovich Matveev as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Maumenet (chapelain)
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Maumenet (chapelain) as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Bauboom geht zu Ende – politischer Strategiewechsel erforderlich
Creators: name: Gornig, Martin
name: Pagenhardt, Laura
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: E32 Business Fluctuations; Cycles
subject: E66 General Outlook and Conditions
subject: Construction industry
subject: residential construction
subject: public infrastructure
subject: economic outlook

description: Nach dem Boom der Bauwirtschaft in den vergangenen Jahren haben im Jahr 2022 Inflation und Lieferengpässe der Branche schwer zu schaffen gemacht. Zwar ist das Bauvolumen nominal nochmals um fast 14 Prozent gestiegen, inflationsbereinigt ging es allerdings um zwei Prozent zurück. Besonders betroffen war und ist der dringend benötigte Wohnungsneubau. Für dieses und das nächste Jahr wird erwartet, dass sich die Investoren aufgrund steigender Baukosten und verschlechterter Finanzierungsbedingungen zurückhalten werden und das Bauvolumen auch nominal nur noch um vier bis fünf Prozent wächst. Das Bauhauptgewerbe sollte aber dann auch von der anziehenden Baukonjunktur insbesondere im Wirtschaftsbau und im öffentlichen Bau profitieren. Der Rückgang der realen Bauleistung setzt die Politik unter enormen Druck und macht einen Strategiewechsel erforderlich. Zentrale Ziele der Politik sind nur zu erreichen, wenn die Baukapazitäten nicht schrumpfen, sondern deutlich ausgeweitet werden. Besonderes Augenmerk sollte die Politik nun auf Anreize für die Nachverdichtung im Bestand, die energetische Gebäudesanierung und den Ausbau kommunaler Infrastrukturen legen.
description: DIW Wochenbericht, 90 (2023), 1/2, S. 3-14
Epigenetic DNA methylation is not associated with natural variation in caregiver-infant physical contact time in a cross-sectional sample of human toddlers
Creators: name: Quirt, Jill Sutherland
Publisher: name: University of British Columbia
Year: 2012

description: Background: Early infant experience has been associated with long term epigenetic modifications of gene expression and subsequent health outcomes. We questioned whether daily physical contact time shared between an infant and their caregiver as an early experience was associated with prolonged variations in the epigenetic patterns of toddlers. Methods: We performed a second look analysis of a self-reported 3-day diary kept by 1,055 caregivers of their behaviours and interactions with their infants at 5 weeks of age. We measured the average daily physical contact time shared between the infant and caregiver and compared this across the sample. We defined high and low caregiver-infant contact groups as the upper and lower 16th percentiles. We conducted a descriptive analysis of the associated caregiver and infant behaviours with high and low contact caregiving. We then collected epithelial buccal cells from a subsample of the now 3-5 year old toddlers of the high and low caregiver-infant pairs. We collected samples for 98 toddlers (59 high contact infants, 39 low contact infants). We determined DNA methylation patterns in all toddlers using the Infinium Illumina Methylation Assay and then compared the degree of methylation at 434580 CpG sites. In addition, we compared methylation status of five genes associated with stress response pathways. Results: Average daily caregiver-infant contact time followed a normal distribution over a large range. The mean physical contact time between caregiver-infant dyads was (± SD) 9h7m (± 2h 52m). High and low contact caregiver-infant contact pairs were defined as those who shared ≥12h 22m/day and those who shared ≤6h14m/day of physical contact respectively. There were no significant associations between the methylation patterns of the epithelial buccal cells of the toddlers and the differences in physical contact time at 5 weeks of age. There were no significant associations between the methylation status and physical contact time when controlling for gender. No differences were associated with the 5 candidate genes. Interpretation: A difference in caregiver-infant physical contact time of at least 6hrs/day at 5 weeks of age was not associated with individual differences in epigenetic methylation patterns in the epithelial buccal cells of toddlers at 3-5 years of age.
Galois Module Structure of \Z/\ell^n-th Classes of Fields
Creators: name: Minac, Jan
name: Swallow, John
name: Topaz, Adam
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 12G05, 20C05

description: In this paper we use the Merkurjev-Suslin theorem to explore the structure of arithmetically significant Galois modules that arise from Kummer theory. Let K be a field of characteristic different from a prime \ell, n a positive integer, and suppose that K contains the (\ell^n)^th roots of unity. Let L be the maximal \Z/\ell^n-elementary abelian extension of K, and set G = \Gal(L|K). We consider the G-module J = L^\times/\ell^n and denote its socle series by J_m. We provide a precise condition, in terms of a map to H^3(G,\Z/\ell^n), determining which submodules of J_{m-1} embed in cyclic modules generated by elements of J_m. This generalizes a theorem of Adem, Gao, Karaguezian, and Minac which deals with the case m=\ell^n=2. This description of J_m/J_{m-1} can be viewed as an analogue of the classical Hilbert's Theorem 90 and it is helpful for understanding the G-module J.
description: Final version: to appear in Bull. of the London Math Soc
Asteroseismology of the open clusters NGC 6791, NGC 6811, and NGC 6819 from nineteen months of Kepler photometry
Creators: name: Corsaro, Enrico
name: Stello, Dennis
name: Huber, Daniel
name: Bedding, Timothy R.
name: Bonanno, Alfio
name: Brogaard, Karsten
name: Kallinger, Thomas
name: Benomar, Othman
name: White, Timothy R.
name: Mosser, Benoit
name: Basu, Sarbani
name: Chaplin, William J.
name: Christensen-Dalsgaard, Jørgen
name: Elsworth, Yvonne P.
name: García, Rafael A.
name: Hekker, Saskia
name: Kjeldsen, Hans
name: Mathur, Savita
name: Meibom, Søren
name: Hall, Jennifer R.
name: Ibrahim, Khadeejah A.
name: Klaus, Todd C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We studied solar-like oscillations in 115 red giants in the three open clusters NGC 6791, NGC 6811, and NGC 6819, based on photometric data covering more than 19 months with NASA's Kepler space telescope. We present the asteroseismic diagrams of the asymptotic parameters δν_02, δν_01 and ε, which show clear correlation with fundamental stellar parameters such as mass and radius. When the stellar populations from the clusters are compared, we see evidence for a difference in mass of the red giant branch stars, and possibly a difference in structure of the red clump stars, from our measurements of the small separations δν_02 and δν_01. Ensemble échelle diagrams and upper limits to the linewidths of l = 0 modes as a function of Δνof the clusters NGC 6791 and NGC 6819 are also shown, together with the correlation between the l = 0 ridge width and the T_eff of the stars. Lastly, we distinguish between red giant branch and red clump stars through the measurement of the period spacing of mixed dipole modes in 53 stars among all the three clusters to verify the stellar classification from the color-magnitude diagram. These seismic results also allow us to identify a number of special cases, including evolved blue stragglers and binaries, as well as stars in late He-core burning phases, which can be potentially interesting targets for detailed theoretical modeling.
description: 30 pages, 15 figures, 1 table, accepted to ApJ
Hydrodynamic Scaling Analysis of Nuclear Fusion driven by ultra-intense laser-plasma interactions
Creators: name: Kimura, Sachie
name: Bonasera, Aldo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Nuclear Theory (nucl-th)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We discuss scaling laws of fusion yields generated by laser-plasma interactions. The yields are found to scale as a function of the laser power. The origin of the scaling law in the laser driven fusion yield is derived in terms of hydrodynamic scaling. We point out that the scaling properties can be attributed to the laser power dependence of three terms: the reaction rate, the density of the plasma and the projected range of the plasma particle in the target medium. The resulting scaling relations have a predictive power that enables estimating the fusion yield for a nuclear reaction which has not been investigated by means of the laser accelerated ion beams.
description: 11 pages
Conditioning on and controlling for variates via cumulative differences: measuring calibration, reliability, biases, and other treatment effects
Creators: name: Mark Tygert
Publisher: name: Zenodo
Year: 2022

description: This is outdated; instead, see Calibration and bias in algorithms, data, and models

 

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talk.mp4 contains an MPEG-4 recording of the presentation.

talk.mov contains a QuickTime recording of the presentation.
title: Contribution of "Shear Wave" Elastography by ultrasonography in classifying thyroid nodules correlated with cytology
Creators: name: Schelini, Marcelo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Thyroid / Parathyroids
subject: Head and neck
subject: Elastography
subject: Ultrasound
subject: Biopsy
subject: Education and training
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The two main objectives of this project are to analyze whether the Shear Wave elastography (SWE) improves the selection of thyroid nodules to be referred for fine needle aspiration biopsy (FNAB) and to evaluate the patterns obtained by the Shear...
Simple asymptotic forms for Sommerfeld and Brillouin precursors
Creators: name: Macke, Bruno
name: Ségard, Bernard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This article mainly deals with the propagation of step-modulated light pulses in a dense Lorentz-medium at distances such that the medium is opaque in a broad spectral region including the carrier frequency. The transmitted field is then reduced to the celebrated precursors of Sommerfeld and Brillouin, far apart from each other. We obtain simple analytical expressions of the first (Sommerfeld) precursor whose shape only depends on the order of the initial discontinuity of the incident field and whose amplitude rapidly decreases with this order (rise-time effects). We show that, in a strictly speaking asymptotic limit, the second (Brillouin) precursor is entirely determined by the frequency-dependence of the medium attenuation and has a Gaussian or Gaussian-derivative shape. We point out that this result applies to the precursor directly observed in a Debye medium at decimetric wavelengths. When attenuation and group-delay dispersion both contribute to its formation, we establish a more general expression of the Brillouin precursor, containing the previous one (dominant-attenuation limit) and that obtained by Brillouin (dominant-dispersion limit) as particular cases. We finally study the propagation of square or Gaussian pulses and we determine the pulse parameters optimizing the Brillouin precursor. Obtained by standard Laplace-Fourier procedures, our results are explicit and contrast by their simplicity from those derived by the uniform saddle point methods, from which it is very difficult to retrieve our asymptotic forms.
title: Recognizing Most Common Diagnostic MRI Pitfalls in Prostate Cancer. A Practical Approach for the Daily Routine Radiologic Practice
Creators: name: Maldonado Schoijet, Ignacio
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Genital / Reproductive system male
subject: Pelvis
subject: Oncology
subject: MR
subject: MR-Diffusion/Perfusion
subject: Perception image
subject: Cancer
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Show representative cases of frequent errors when reporting prostate magnetic resonance based on the literature and experience accumulated in our center. Give some recommendations to avoid these errors and improve the radiological reports that you...
Measurement of the inclusive isolated prompt photon cross-section in pp collisions at sqrt(s)= 7 TeV using 35 pb-1 of ATLAS data
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy sqrt(s) = 7 TeV is presented. The measurement covers the pseudorapidity ranges |eta|<1.37 and 1.52<=|eta|<2.37 in the transverse energy range 45<=E_T<400GeV. The results are based on an integrated luminosity of 35 pb-1, collected with the ATLAS detector at the LHC. The yields of the signal photons are measured using a data-driven technique, based on the observed distribution of the hadronic energy in a narrow cone around the photon candidate and the photon selection criteria. The results are compared with next-to-leading order perturbative QCD calculations and found to be in good agreement over four orders of magnitude in cross-section.
description: 7 pages plus author list (18 pages total), 2 figures, 4 tables, final version published in Physics Letters B
title: A step forward in elucidating the mystery in Neuroimaging: PET-MRI fusion
Creators: name: Nanivadekar, AVINASH
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neuroradiology brain
subject: Nuclear medicine
subject: Hybrid Imaging
subject: PET-MR
subject: CT
subject: MR
subject: Imaging sequences
subject: Metastases
subject: Dementia
subject: Seizure disorders

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To identify, characterize and demonstrate PET-CT & MRI fusion appearances in various brain pathologies and its impact on management. To assess the advantages of PET- MR Fusion over PET-CT scan or MRI alone, and its clinical and prognostic...
title: To identify the features differentiating peritoneal tuberculosis from carcinomatosis on CT scan abdomen taking omental biopsy as a gold standard
Creators: name: Naz, Farah
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Abdomen
subject: Peritoneum
subject: Contrast agents
subject: CT
subject: Percutaneous
subject: Biopsy
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Cancer
subject: Infection
subject: Cavitation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To differentiate peritoneal tuberculosis from carcinomatosis on Computed Tomography scan of abdomen taking omental biopsy as the gold...
Quantum permutations, Hadamard matrices, and the search for matrix models
Creators: name: Banica, Teodor
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: This is a presentation of recent work on quantum permutation groups, complex Hadamard matrices, and the connections between them. A long list of problems is included. We include as well some conjectural statements, about matrix models.
description: 34 pages
Datos brutos y código fuente para el análisis de datos
Creators: name: Artigas, Wileidys
name: Romero, Ilya Isadora Casanova
name: Puga, Jorge López
name: García, Ana María Ruiz-Ruano
Publisher: name: OSF
Year: 2022

description: Datos brutos y código fuente para el análisis de datos del proyecto "Análisis Exploratorio de la Relación que se establece entre las Motivaciones y las Prácticas Cuestionables de Investigación"
Topological Quintessence
Creators: name: Sanchez, Juan C. Bueno
name: Perivolaropoulos, Leandros
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A global monopole (or other topological defect) formed during a recent phase transition with core size comparable to the present Hubble scale, could induce the observed accelerating expansion of the universe. In such a model, topological considerations trap the scalar field close to a local maximum of its potential in a cosmologically large region of space. We perform detailed numerical simulations of such an inhomogeneous dark energy system (topological quintessence) minimally coupled to gravity, in a flat background of initially homogeneous matter. We find that when the energy density of the field in the monopole core starts dominating the background density, the spacetime in the core starts to accelerate its expansion in accordance to a ΛCDM model with an effective inhomogeneous spherical dark energy density parameter Ω_Λ(r). The matter density profile is found to respond to the global monopole profile via an anti-correlation (matter underdensity in the monopole core). Away from the monopole core, the spacetime is effectively Einstein-deSitter (Ω_Λ(r_{out}) -> 0) while at the center Ω_Λ(r ~ 0) is maximum. We fit the numerically obtained expansion rate at the monopole core to the Union2 data and show that the quality of fit is almost identical to that of ΛCDM. Finally, we discuss potential observational signatures of this class of inhomogeneous dark energy models.
description: Accepted in Phys. Rev. D (to appear). Added observational bounds on parameters. 10 pages (two column revtex), 6 figures. The Mathematica files used to produce the figures of this study may be downloaded from http://leandros.physics.uoi.gr/topquint
Neutron star solutions in perturbative quadratic gravity
Creators: name: Deliduman, Cemsinan
name: Ekşi, K. Y.
name: Keleş, Vildan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the structure of neutron stars in R+β R^{μν} R_{μν} gravity model with perturbative method. We obtain mass--radius relations for six representative equations of state (EoSs). We find that, for |β| ~ 10^11 cm^2, the results differ substantially from the results of general relativity. Some of the soft EoSs that are excluded within the framework of general relativity can be reconciled for certain values of β of this order with the 2 solar mass neutron star recently observed. For values of β greater than a few 10^11 cm^2 we find a new solution branch allowing highly massive neutron stars. By referring some recent observational constraints on the mass--radius relation we try to constrain the value of β for each EoS. The associated length scale \sqrtβ ~ 10^6 cm is of the order of the typical radius of neutron stars implying that this is the smallest value we could find by using neutron stars as a probe. We thus conclude that the true value of β is most likely much smaller than 10^11 cm^2.
description: 19 pages, 9 figures. v2: Analysis on validity of perturbative approach is added. References added. v3: Aesthetic improvements
title: A Simplified Guide to MRI Guided Breast Biopsy (MRI-GBB): Clinical, Imaging, Technical and Pathological Prospective
Creators: name: AlSharif, Shaza
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Biopsy
subject: MR
subject: Interventional non-vascular
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Discuss the demographics of MRI-GBB candidates Review the clinical, imaging, and pathological features of breast lesion undergoing MRI-GBB Discuss the impact of delay in patient's management due to MRI-GBB and how to overcome it Understand the steps...
title: Pediatric intussusception: Factors Associated With Increased Likelihood for Need for Surgical Intervention
Creators: name: Patel, Dhruv
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Outcomes
subject: Obstruction / Occlusion
subject: Outcomes analysis
subject: Diagnostic procedure
subject: Ultrasound
subject: Fluoroscopy
subject: Paediatric
subject: Emergency
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Background: Intussusception is the most common cause of intestinal obstruction in children under 2 years and is most commonly seen in ages 6 months to 3 years old [1,2]. Ultrasound is thediagnostic modality of choice with up to 100% reported...
Magneto-optical and optical probes of gapped ground states of bilayer graphene
Creators: name: Gorbar, E. V.
name: Gusynin, V. P.
name: Kuzmenko, A. B.
name: Sharapov, S. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the influence of different kinds of gaps in a quasiparticle spectrum on longitudinal and transverse optical conductivities of bilayer graphene. An exact analytical expression for magneto-optical conductivity is derived using a low-energy two-band Hamiltonian. We consider how the layer asymmetry gap caused by a bias electric field and a time-reversal symmetry breaking gap affect the absorption lines. The limit of zero magnetic field is then analyzed for an arbitrary carrier density in the two-band model. For a neutral bilayer graphene, the optical Hall and longitudinal conductivities are calculated exactly in the four-band model with four different gaps and zero magnetic field. It is shown that two different time-reversal symmetry breaking states can be distinguished by analyzing the dependence of the optical Hall conductivity on the energy of photon. These time-reversal symmetry breaking states are expected to be observed experimentally via optical polarization rotation either in the Faraday or Kerr effects. We analyze a possibility of such an experiment for a free-standing graphene, graphene on a thick substrate, and graphene on a double-layer substrate.
description: 16 pages, 7 figures; final version published in PRB