cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The imprint of cosmological non-Gaussianities on primordial structure formation
Creators: name: Maio, Umberto
name: Khochfar, Sadegh
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study via numerical N-body/SPH chemistry simulations the effects of primordial non-Gaussianities on the formation of the first stars and galaxies, and investigate the impact of supernova feedback in cosmologies with different fnl. Density distributions are biased to higher values, so star formation and the consequent feedback processes take place earlier in high-fnl models and later in low-fnl ones. Mechanical feedback is responsible for shocking and evacuating the gas from star forming sites earlier in the highly non-Gaussian cases, because of the larger bias at high densities. Chemical feedback translates into high-redshift metal filling factors that are larger by some orders of magnitude for larger fnl, but that converge within one Gyr, for both population III and population II-I stellar regimes. The efficient enrichment process, though, leads to metallicities > 0.01 Zsun by redshift ~9, almost independently from fnl. The impact of non-Gaussianities on the formation of dark-matter haloes at high redshift is directly reflected in the properties of the gas in these haloes, as models with larger fnl show more concentrated gas profiles at early times. Non-Gaussian signatures in the gas behaviour are lost after the first feedback takes place and introduces a significant degree of turbulence and chaotic motions.
description: 10 pages, 9 figures - accepted for publication in MNRAS
title: Single-energy metal artefact reduction (SEMAR) algorithm: objective and subjective assessments of CT image quality for radiotherapy purpose
Creators: name: CORDIER, Etienne
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Radiation physics
subject: CT
subject: Physics
subject: Radiation effects
subject: Artifacts

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Computed tomography (CT) is the most commonly used imaging method for radiotherapy treatment planning [1]. The pixel information of a CT image is expressed in Hounsfield units (HUs). CT images have two main purposes: to allow clinical target volume...
Effects of Minijets on Hadronic Spectra and Azimuthal Harmonics in Au-Au Collisions at 200 GeV
Creators: name: Hwa, Rudolph C.
name: Zhu, Lilin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The production of hadrons in heavy-ion collisions at RHIC in the low transverse-momentum ($p_T$) region is investigated in the recombination model with emphasis on the effects of minijets on the azimuthal anisotropy. Since the study is mainly on the hadronization of partons at late time, the fluid picture is not used to trace the evolution of the system. The inclusive distributions at low $p_T$ are determined as the recombination products of thermal partons. The $p_T$ dependencies of both pion and proton have a common exponential factor apart from other dissimilar kinematic and resonance factors, because they are inherited from the same pool of thermal partons. Instead of the usual description based on hydrodynamics, the azimuthal anisotropy of the produced hadrons is explained as the consequence of the effects of minijets, either indirectly through the recombination of enhanced thermal partons in the vicinity of the trajectories of the semihard partons, or directly through thermal-shower recombination. Although our investigation is focussed on the single-particle distribution at midrapidity, we give reasons why a component in that distribution can be identified with the ridge, which together with the second harmonic $v_2$ is due to the semihard partons created near the medium surface that lead to calculable anisotropy in $ϕ$. It is shown that the higher azimuthal harmonics, $v_n$, can also be well reproduced without reference to flow. The $p_T$ and centrality dependencies of the higher harmonics are prescribed by the interplay between TT and TS recombination components. The implication of the success of this drastic departure from the conventional approach is discussed.
description: 28 pages and 8 figures, more discussions and references added
title: The eye looks but it is the mind that sees: imaging spectrum of ocular conditions
Creators: name: Giovanetti González, Rubén
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Eyes

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aims of this educational poster are: To describe ocular anatomy and divide the eye regions for a better understanding of their pathology. To describe and illustrate the imaging features in CT and MRI of common and uncommon ocular...
Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the LHC and correspond to a total integrated luminosity of 1.08/fb (1.21/fb) in the ee (mumu) channel. No statistically significant excess above the Standard Model expectation is observed and upper limits are set at the 95% C.L. on the cross section times branching ratio of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 TeV on the Sequential Standard Model Z' boson is set. A Randall-Sundrum graviton with coupling k/M_Pl=0.1 is excluded at 95% C.L. for masses below 1.63 TeV.
description: 6 pages plus author list (18 pages total), 2 figures, 4 tables, final version to appear in Physical Review Letters
title: Vom Breitbandausbau zwischen 2010 und 2015 profitierten vor allem Dienstleister: Interview
Creators: name: Schiersch, Alexander
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022

description: DIW Wochenbericht, 89 (2022), 25/26, S. 366
Conquistas de buenas palabras y de guerra: una visión indígena de la conquista
Creators: name: Capistrán, Hugo García
Publisher: name: figshare
Year: 2021
Subjects: History

description: El libro de Oudijk y Restall en realidad no trata a los vencidos,sino a los vencedores, grupos indígenas que fueron los verdaderos protagonistas y que, sin su ayuda, el proyecto conquistador de España.
title: Breitbandversorgung erhöht die Produktivität von Unternehmen, aber nicht alle profitieren gleichermaßen
Creators: name: Duso, Tomaso
name: Schiersch, Alexander
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: D24 Production; Cost; Capital, Total Factor, and Multifactor Productivity; Capacity
subject: D22 Firm Behavior: Empirical Analysis
subject: J24 Human Capital; Skills; Occupational Choice; Labor Productivity
subject: O14 Industrialization; Manufacturing and Service Industries; Choice of Technology
subject: O22 Project Analysis
subject: O33 Technological Change: Choices and Consequences; Diffusion Processes
subject: productivity
subject: broadband

description: In der Diskussion über die staatliche Förderung des Breitbandausbaus wird immer wieder die Frage aufgeworfen, ob und in welchem Umfang Unternehmen von neuen Netzen profitieren. Empirische Analysen auf Grundlage von Unternehmensdaten und Daten zur Breitbandverfügbarkeit in Deutschland zeigen, dass ein Teil der Unternehmen im Untersuchungszeitraum (2010 bis 2015) vom Breitbandausbau profitiert hat. Vor allem Dienstleistungsunternehmen konnten ihre Produktivität erhöhen. Die Stärke der Effekte unterscheidet sich aber deutlich zwischen den verschiedenen Wirtschaftszweigen. Wichtig sind außerdem möglichst geringe Entfernungen zwischen den Endpunkten des Glasfasernetzes und den Breitbandnutzern. Nur dann lassen sich positive Effekte sicherstellen. Die Ergebnisse der Untersuchung unterstützen den wirtschaftspolitischen Ansatz, den Ausbau der Breitbandversorgung zu fördern, da er die Wettbewerbsfähigkeit der Unternehmen und damit ihre Überlebensfähigkeit verbessert.
description: DIW Wochenbericht, 89 (2022), 25/26, S. 359-365
title: Ultrasonography of the spinal cord
Creators: name: Díaz Antonio, Tania
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Paediatric
subject: Neuroradiology spine
subject: Ultrasound
subject: Diagnostic procedure
subject: Education
subject: Congenital
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Ultrasonography of the spinal cord is a useful imaging technique for assessing the spinal canal. It is considered as a screening method for newborns and infants under the age of six months owing to incomplete ossification of the posterior vertebral...
Measurement of Photon Statistics with Live Photoreceptor Cells
Creators: name: Sim, Nigel
name: Cheng, Mei Fun
name: Bessarab, Dmitri
name: Jones, C. Michael
name: Krivitsky, Leonid A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyzed the electrophysiological response of an isolated rod photoreceptor of Xenopus laevis under stimulation by coherent and pseudo-thermal light sources. Using the suction electrode technique for single cell recordings and a fiber optics setup for light delivery allowed measurements of the major statistical characteristics of the rod response. The results indicate differences in average responses of rod cells to coherent and pseudo-thermal light of the same intensity and also differences in signal-to-noise ratios and second order intensity correlation functions. These findings should be relevant for interdisciplinary studies seeking applications of quantum optics in biology.
description: 6 pages, 7 figures
title: Appropriateness and Accuracy of Information for Ultrasound (US) requests in Deep Venous Thrombosis (DVT)
Creators: name: Godkin, Owen
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Embolism / Thrombosis
subject: Education and training
subject: Education
subject: Diagnostic procedure
subject: Audit and standards
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Veins / Vena cava
subject: Extremities
subject: Emergency

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Deep vein thrombosis (DVT) contributes to significant morbidity and mortality both in the community and in hospital. DVT should be suspected in patients who present with leg swelling, pain, warmth, and erythema. Ultrasound: Is used to exclude DVT as...
The Food and Nutrition Assistance Landscape: Fiscal Year 2020 Annual Report
Creators: name: Toossi, Saied
name: Jones, Jordan W.
name: Hodges, Leslie
name: Toossi, Saied
name: Jones, Jordan W.
name: Hodges, Leslie
Publisher: name: Unknown
Year: 2021
Subjects: subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Resource /Energy Economics and Policy
subject: food and nutrition assistance programs
subject: Supplemental Nutrition Assistance Program (SNAP)
subject: Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)
subject: National School Lunch Program (NSLP)
subject: School Breakfast Program (SBP)
subject: Seamless Summer Option (SSO)
subject: Summer Food Service Program (SFSP)
subject: Child and Adult Care Food Program (CACFP)
subject: Pandemic Electronic Benefit Transfer (P-EBT)
subject: Farmers to Families Food Box Program
subject: emergency allotments
subject: food security
subject: coronavirus
subject: COVID-19 pandemic
subject: economic conditions

description: The U.S. Department of Agriculture (USDA) typically administers 15 domestic food and nutrition assistance programs that together affect the lives of millions of people and account for roughly two-thirds of USDA’s annual budget. In response to the coronavirus (COVID-19) pandemic, USDA launched two new programs, Pandemic Electronic Benefit Transfer (P-EBT) and the Farmers to Families Food Box Program (Food Box Program). Additionally, USDA implemented numerous policy changes that expanded the scope and coverage of existing programs. Together, these initiatives contributed to an increase in expenditures on food and nutrition assistance programs, which amounted to a historical inflation-adjusted high of $122.1 billion in fiscal year (FY) 2020 (October 1, 2019 to September 30, 2020). This report uses preliminary data from USDA’s Food and Nutrition Service (FNS) and Agricultural Marketing Service (AMS) to examine program trends in the largest U.S. food and nutrition assistance programs through FY 2020 and documents the many policy changes implemented since March 2020. It also summarizes a recent USDA, Economic Research Service report examining the prevalence of household food insecurity in the United States in 2019 and a working paper examining Supplemental Nutrition Assistance Program (SNAP) and P-EBT benefit redemptions during the pandemic.
Spinful Composite Fermions in a Negative Effective Field
Creators: name: Davenport, Simon C.
name: Simon, Steven H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper we study fractional quantum Hall composite fermion wavefunctions at filling fractions ν= 2/3, 3/5, and 4/7. At each of these filling fractions, there are several possible wavefunctions with different spin polarizations, depending on how many spin-up or spin-down composite fermion Landau levels are occupied. We calculate the energy of the possible composite fermion wavefunctions and we predict transitions between ground states of different spin polarizations as the ratio of Zeeman energy to Coulomb energy is varied. Previously, several experiments have observed such transitions between states of differing spin polarization and we make direct comparison of our predictions to these experiments. For more detailed comparison between theory and experiment, we also include finite-thickness effects in our calculations. We find reasonable qualitative agreement between the experiments and composite fermion theory. Finally, we consider composite fermion states at filling factors ν= 2+2/3, 2+3/5, and 2+4/7. The latter two cases we predict to be spin polarized even at zero Zeeman energy.
description: 17 pages, 5 figures, 4 tables. (revision: incorporated referee suggestions, note added, updated references)
Historias de la conquista Aspectos de la histografía de tradición indígena
Creators: name: Galicia, Sergio Ángel Vasquez
Publisher: name: figshare
Year: 2021
Subjects: History

description: Pastrana Flores, Miguel (2004), Historias de la Conquista. Aspectos de la historiografía de tradición indígena, México, UNAM-Instituto de Investigaciones Históricas, 298 pp., cuadros, ilus. (Serie: Teoría e Historia de la Historiografía, 2), ISBN: 970-32-1449-5
title: Contribution of magnetic resonance imaging in children’s epilepsy
Creators: name: agai, Jean baptiste
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neuroradiology brain
subject: MR
subject: Diagnostic procedure
subject: Pathology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: · Know the indications of imaging in the epilepsy of the child. · Know the adapted MRI protocol. · Know the semiology of the main identifiable causes in MRI. · Illustrate all the main etiologies of epilepsy in...
title: Austeritätspolitik der Ära Brüning hat den Wirtschaftseinbruch verstärkt und die Arbeitslosigkeit erhöht
Creators: name: Ettmeier, Stephanie
name: Kriwoluzky, Alexander
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: C32 Multiple or Simultaneous Equation Models: Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models
subject: E62 Fiscal Policy
subject: E65 Studies of Particular Policy Episodes
subject: N14 Economic History: Macroeconomics; Growth and Fluctuations: Europe: 1913-
subject: Austerity
subject: Fiscal policy
subject: Germany
subject: Great Depression
subject: Structural vector autoregression

description: Im Mai 2022 hat sich das Ende von Reichskanzler Heinrich Brünings Amtszeit zum 90. Mal gejährt. Bis heute sind die ökonomischen Auswirkungen von Brünings extremer Austeritätspolitik noch immer ungeklärt. Neue Daten und Berechnungen erlauben erstmals die Quantifizierung der ökonomischen Folgen der von Brüning erlassenen Spardekrete. Eine Analyse auf Basis eines Zeitreihenmodells veranschaulicht, wie sich die Wirtschaft der Weimarer Republik ohne Brünings Sparmaßnahmen hätte entwickeln können. Die reale Wirtschaftsleistung sank demzufolge durch die Notverordnungen im Referenzjahr 1932 insgesamt um rund 4,5 Prozent und die Arbeitslosigkeit stieg stark. Vor diesem Hintergrund sollten Forderungen nach einer Schuldenreduzierung durch Austeritätspolitik heute hinterfragt werden.
description: DIW Wochenbericht, 89 (2022), 24, S. 345-350
The health resource utilization and economic burden of systemic autoimmune rheumatic diseases
Creators: name: McCormick, Natalie
Publisher: name: University of British Columbia
Year: 2012

description: Background: SARDs (Systemic Autoimmune Rheumatic Diseases) are a group of rare, chronic conditions (systemic vasculitis, systemic lupus erythematosus, scleroderma, Sjogren's disease, and poly/dermatomyositis) associated with high health resource consumption. However, estimates of their healthcare burden are sparse, with most determined at tertiary centres over short periods. Studying them separately has also limited research progress. Here we grouped the SARDs, for the first time ever, to quantify their collective, longitudinal (twelve-year) burden at the population-level. Methods: A population-based cohort of SARDs cases was identified from the administrative database of BC’s single-payer health system (PopDataBC). A detailed algorithm, with time and specialist parameters, was used to enhance diagnostic specificity. From PopDataBC, all provincially-funded health services, and all prescriptions (regardless of funding source), consumed from 1996 -2007 were captured. Costs for outpatient services and prescriptions were summed directly from paid claims; case-mix methodology was used for most hospitalizations. To quantify their net burden, costs were summed for claims attributable (under broad and narrow definitions) to SARDs. Costs are reported in 2007 Canadian dollars. Results: 18,741 SARDs cases were identified, contributing 82,140 patient-years(PY). After inflation adjustments, the annual mean per-PY direct medical costs of SARDs averaged $6,954/PY, with $1,882/PY(27%) from outpatient, $3,551/PY(51%) from hospital, and $1,521/PY(22%) from prescriptions. Over twelve years, annual costs decreased by 32%, from $8,901/PY in 1996 to $6,087/PY in 2007. Outpatient costs and encounters decreased by 26% ($2,205-$1,641/PY) and 19% (34-27/PY), respectively. Mean annual hospital costs decreased by half ($5,579-$2,776/PY), and admissions by 46% (0.89-0.48/PY). Despite these decreases, the annual mean number of dispensed prescriptions increased by 49% (23-34/PY), and their costs by 50% ($1,117-$1,670/PY). The annual net per-PY costs of SARDs, mainly from hospitalizations(18-43% of costs) and prescriptions(48-76%), averaged $2,011-$3,202/PY. Conclusions: SARDs impart a substantial healthcare burden at the population level, and in 2007 were directly responsible for ≥44% of cases’ gross mean annual healthcare costs ($6,087/PY). Most costs have decreased over twelve years; however, medication costs are rising (by 4% annually, on-average), which suggests comorbidity burdens are too. As demand grows for expensive but potentially-better SARDs therapies, research to assess their impact on long-term comorbidity risk is needed.
title: Spectral compensation for transducer and tissue non-idealities in ultrasound
Creators: name: McLaughlin, Glen
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Ultrasound physics
subject: Ultrasound
subject: Physics
subject: Statistics
subject: FOS: Mathematics
subject: Diagnostic procedure
subject: Outcomes
subject: Tissue characterisation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Limitations of transducer bandwidth, transducer element time of flight variability along with the non-linear tissue attenuation response impose additional performance limitations on ultrasound imaging.The ability to measure and compensate for these...
How often does the Unruh-DeWitt detector click beyond four dimensions?
Creators: name: Hodgkinson, Lee
name: Louko, Jorma
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse the response of an arbitrarily-accelerated Unruh-DeWitt detector coupled to a massless scalar field in Minkowski spacetimes of dimensions up to six, working within first-order perturbation theory and assuming a smooth switch-on and switch-off. We express the total transition probability as a manifestly finite and regulator-free integral formula. In the sharp switching limit, the transition probability diverges in dimensions greater than three but the transition rate remains finite up to dimension five. In dimension six, the transition rate remains finite in the sharp switching limit for trajectories of constant scalar proper acceleration, including all stationary trajectories, but it diverges for generic trajectories. The divergence of the transition rate in six dimensions suggests that global embedding spacetime (GEMS) methods for investigating detector response in curved spacetime may have limited validity for generic trajectories when the embedding spacetime has dimension higher than five.
description: 30 pages. v3: presentational improvement. Published version
Quantum measurement occurrence is undecidable
Creators: name: Eisert, J.
name: Mueller, M. P.
name: Gogolin, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we show that very natural, apparently simple problems in quantum measurement theory can be undecidable even if their classical analogues are decidable. Undecidability hence appears as a genuine quantum property here. Formally, an undecidable problem is a decision problem for which one cannot construct a single algorithm that will always provide a correct answer in finite time. The problem we consider is to determine whether sequentially used identical Stern-Gerlach-type measurement devices, giving rise to a tree of possible outcomes, have outcomes that never occur. Finally, we point out implications for measurement-based quantum computing and studies of quantum many-body models and suggest that a plethora of problems may indeed be undecidable.
description: 4+ pages, 1 figure, added a proof that the QMOP is still undecidable for exponentially small but nonzero probability
Infrared limit in external field scattering
Creators: name: Herdegen, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Scattering of electrons/positrons by external classical electromagnetic wave packet is considered in infrared limit. In this limit the scattering operator exists and produces physical effects, although the scattering cross-section is trivial.
description: 12 pages; published version; minor corrections; comments added
title: Therapeutic ultrasound-guided shoulder injections: Tips and tricks to maximize efficacy and minimize patient discomfort
Creators: name: Hasan, Usama
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Inflammation
subject: Education and training
subject: Education
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: Musculoskeletal joint

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: We will describe the pathophysiology of various conditions of the shoulder that can be relieved with ultrasound (US)-guided steroid and anesthetic injections. We will detail the step-by-step process of each injection, with corresponding photographs....
Cascades on clique-based graphs
Creators: name: Hackett, Adam
name: Gleeson, James P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present an analytical approach to determining the expected cascade size in a broad range of dynamical models on the class of highly-clustered random graphs introduced by Gleeson [J. P. Gleeson, Phys. Rev. E 80, 036107 (2009)]. A condition for the existence of global cascades is also derived. Applications of this approach include analyses of percolation, and Watts's model. We show how our techniques can be used to study the effects of in-group bias in cascades on social networks.
description: 11 pages, 4 figures
title: Unruptured intracraneal aneurysm: approach from inside
Creators: name: Monedero Herrador, Gonzalo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neuroradiology brain
subject: Interventional vascular
subject: CT
subject: MR
subject: Catheter arteriography
subject: Embolisation
subject: Stents
subject: Catheters
subject: Aneurysms

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To understand the pathophisiology and natural history of intracraneal aneurysm To know the role of diagnostic images To show the patient treatment criteria To provide comprehensive and evidence-based recommendations for endovascular management of...
Effects of COVID-19-related worry and rumination on mental health and loneliness during the pandemic: longitudinal analyses of adults in the UK COVID-19 mental health & wellbeing study
Creators: name: O’Connor, Daryl B.
name: Wilding, Sarah
name: Ferguson, Eamonn
name: Cleare, Seonaid
name: Wetherall, Karen
name: McClelland, Heather
name: Melson, Ambrose J.
name: Niedzwiedz, Claire
name: O’Carroll, Ronan E.
name: Platt, Steve
name: Scowcroft, Elizabeth
name: Watson, Billy
name: Zortea, Tiago
name: Robb, Kathryn A.
name: O’Connor, Rory C.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: The lasting effects of the coronavirus disease 2019 pandemic are likely to be significant. This study tracked worry and rumination levels during the pandemic and investigated whether periods with higher COVID-related worry and rumination were associated with more negative mental health and loneliness. A quota survey design and a sampling frame that permitted recruitment of a national sample were employed. Findings for waves 1 (March 2020) to 6 (November 2020) are reported (N = 1943). Covid-related worry and rumination levels were highest at the beginning of the first lockdown, then declined but increased when the UK returned to lockdown. Worry levels were higher than rumination levels throughout. High levels of COVID-related worry and rumination were associated with a five- and ten-fold increase in clinically meaningful rates of depression and anxiety (respectively) together with lower well-being and higher loneliness. The effects of COVID-related worry on depression and anxiety levels were most marked and clinically meaningful in individuals living with a pre-existing mental health condition. Psychological interventions should include components that specifically target COVID-related worry and rumination. Individuals with pre-existing mental health conditions should be prioritised as we emerge from the current pandemic and in any future public health crises.
title: Dietrich Wilhelm von Bülow
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: Dietrich Wilhelm von Bülow as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Decompositions of complete graphs into cycles of arbitrary lengths
Creators: name: Bryant, Darryn
name: Horsley, Daniel
name: Pettersson, William
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C51 (Primary) 05B30, 05C38 (Secondary)

description: We show that the complete graph on $n$ vertices can be decomposed into $t$ cycles of specified lengths $m_1,\ldots,m_t$ if and only if $n$ is odd, $3\leq m_i\leq n$ for $i=1,\ldots,t$, and $m_1+\cdots+m_t=\binom n2$. We also show that the complete graph on $n$ vertices can be decomposed into a perfect matching and $t$ cycles of specified lengths $m_1,\ldots,m_t$ if and only if $n$ is even, $3\leq m_i\leq n$ for $i=1,\ldots,t$, and $m_1+\ldots+m_t=\binom n2-\frac n2$.
description: 182 pages, 0 figures, A condensed version of this paper was published as "Cycle decompositions V: Complete graphs into cycles of arbitrary lengths" (see reference [24]). Here, we include supplementary data and some proofs which were omitted from that paper
title: Joachim Heinrich von Bülow
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: Joachim Heinrich von Bülow as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Michael (Mihály) Bulyowsky de Dulycz
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: Michael (Mihály) Bulyowsky de Dulycz as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Giant optical nonlinearity of graphene in a strong magnetic field
Creators: name: Yao, Xianghan
name: Belyanin, Alexey
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present quantum-mechanical density-matrix formalism for calculating the nonlinear optical response of magnetized graphene, valid for arbitrarily strong magnetic and optical fields. We show that magnetized graphene possesses by far the highest third-order optical nonlinearity among all known materials. The giant nonlinearity originates from unique electronic properties and selection rules near the Dirac point. As a result, even one monolayer of graphene gives rise to appreciable nonlinear frequency conversion efficiency for incident infrared radiation.
description: 4pages, 2 figures
title: Jean Albert d’Archambaud Buquoit
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: Jean Albert d’Archambaud Buquoit as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
On the Amplitude of Convective Velocities in the Deep Solar Interior
Creators: name: Miesch, Mark S.
name: Featherstone, Nicholas A.
name: Rempel, Matthias
name: Trampedach, Regner
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We obtain lower limits on the amplitude of convective velocities in the deep solar convection zone based only on the observed properties of the differential rotation and meridional circulation together with simple and robust dynamical balances obtained from the fundamental MHD equations. The linchpin of the approach is the concept of gyroscopic pumping whereby the meridional circulation across isosurfaces of specific angular momentum is linked to the angular momentum transport by the convective Reynolds stress. We find that the amplitude of the convective velocity must be at least 30 m s$^{-1}$ in the upper CZ ($r \sim 0.95 R$) and at least 8 m s$^{-1}$ in the lower CZ ($r \sim 0.75 R$) in order to be consistent with the observed mean flows. Using the base of the near-surface shear layer as a probe of the rotational influence, we are further able to show that the characteristic length scale of deep convective motions must be no smaller than 5.5--30 Mm. These results are compatible with convection models but suggest that the efficiency of the turbulent transport assumed in advection-dominated flux-transport dynamo models is generally not consistent with the mean flows they employ.
description: 16 pages, 4 figures, accepted to the Astrophysical Journal
Exact three-body local correlations for excited states of the 1D Bose gas
Creators: name: Kormos, Marton
name: Chou, Yang-Zhi
name: Imambekov, Adilet
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We derive an exact analytic expression for the three-body local correlations in the Lieb-Liniger model of 1D Bose gas with contact repulsion. The local three-body correlations control the thermalization and particle loss rates in the presence of terms which break integrability, as is realized in the case of 1D ultracold bosons. Our result is valid not only at finite temperature but also for a large class of non-thermal excited states in the thermodynamic limit. We present finite temperature calculations in the presence of external harmonic confinement within local density approximation, and for a highly excited state that resembles an experimentally realized configuration.
description: 4 pages, 3 figures + supplementary material; v2: Published version
Anxiety, depression and coping strategies among chronic medical patients with coronavirus disease-2019: a multicenter follow-up cohort study
Creators: name: Shousha, Hend Ibrahim
name: Madbouly, Nagwan
name: Afify, Shimaa
name: Asem, Noha
name: Fouad, Eman
name: Maher, Rabab
name: Moussa, Suaad Sayed
name: Abdelazeem, Amr
name: Youssif, Eslam Mohamed
name: Harhira, Khalid Yousef
name: Kamal, Kariman
name: Elmorsy, Hazem
name: Elgarem, Hassan
name: Omran, Dalia
name: Hassany, Mohamed
name: Eysa, Basem
name: Kassas, Mohamed El
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Studies have shown that COVID-19 patients experience high levels of anxiety, depression, and stress during the pandemic. Patients adopt different coping strategies to reduce their psychological distress To compare the immediate and long-term psychological impact of COVID-19 disease on patients with and without chronic medical illnesses (CMI) and identify coping styles of both groups during the peak of COVID-19 disease in Egypt. This is a cohort follow-up study, that included an online survey consisting of General Health Questionnaire-12, Taylor Manifest Anxiety Scale, Beck Depression Inventory and Brief-COPE scale. The Post-Traumatic Stress Disorder (PTSD) Checklist was completed after 6 months. Questionnaires were distributed to adult patients with a confirmed diagnosis of SARS-CoV-2 virus infection during their quarantine in Egypt. There was no significant difference between the two groups regarding anxiety and depression during the acute infection. Patients without CMI relied significantly on the use of informational support to cope with COVID-19 disease. Patients with CMI continued to show significant depressive symptoms after 6 months without significant PTSD symptoms. COVID-19 has similar immediate psychological impact on patients with and without CMI. However, patients with CMI continue to show depression on long-term follow-up.
Search for the signal of monotop production at the early LHC
Creators: name: Wang, Jian
name: Li, Chong Sheng
name: Shao, Ding Yu
name: Zhang, Hao
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the potential of the early LHC to discover the signal of monotops, which can be decay products of some resonances in models such as R-parity violating SUSY or SU(5), etc. We show how to constrain the parameter space of the models by the present data of $Z$ boson hadronic decay branching ratio, $K^0-\bar{K^0}$ mixing and dijet productions at the LHC. Then, we study the various cuts imposed on the events, reconstructed from the hadronic final states, to suppress backgrounds and increase the significance in detail. And we find that in the hadronic mode the information from the missing transverse energy and reconstructed resonance mass distributions can be used to specify the masses of the resonance and the missing particle. Finally, we study the sensitivities to the parameters at the LHC with $\sqrt{s}$=7 TeV and an integrated luminosity of $1 {\rm fb}^{-1}$ in detail. Our results show that the early LHC may detect this signal at 5$σ$ level for some regions of the parameter space allowed by the current data.
description: 25 pages, 18 figures, 3 tables, version published in Phys.Rev.D
Estimating cosmic velocity fields from density fields and tidal tensors
Creators: name: Kitaura, Francisco-Shu
name: Angulo, Raul E.
name: Hoffman, Yehuda
name: Gottl"ober, Stefan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this work we investigate the nonlinear and nonlocal relation between cosmological density and peculiar velocity fields. Our goal is to provide an algorithm for the recon- struction of the nonlinear velocity field from the fully nonlinear density. We find that including the gravitational tidal field tensor using second order Lagrangian perturba- tion theory (2LPT) based upon an estimate of the linear component of the nonlinear density field significantly improves the estimate of the cosmic flow in comparison to linear theory not only in the low density, but also and more dramatically in the high density regions. In particular we test two estimates of the linear component: the log- normal model and the iterative Lagrangian linearisation. The present approach relies on a rigorous higher order Lagrangian perturbation theory analysis which incorpo- rates a nonlocal relation. It does not require additional fitting from simulations being in this sense parameter free, it is independent of statistical-geometrical optimisation and it is straightforward and efficient to compute. The method is demonstrated to yield an unbiased estimator of the velocity field on scales ~> 5 Mpc/h with closely Gaussian distributed errors. Moreover, the statistics of the divergence of the peculiar velocity field is extremely well recovered showing a good agreement with the true one from N-body simulations. The typical errors of about 10 km/s (1 sigma confidence intervals) are reduced by more than 80% with respect to linear theory in the scale range between 5 and 10 Mpc/h in high density regions (δ > 2). We also find that iterative Lagrangian linearisation is significantly superior in the low density regime with respect to the lognormal model.
description: 15 pages, 9 figures, 1 table
title: Die Haushaltsnettoeinkommen sind seit 1995 bis zur Pandemie im Schnitt um 26 Prozent gestiegen: Interview
Creators: name: Grabka, Markus M.
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022

description: DIW Wochenbericht, 89 (2022), 23, S. 338
title: Horatio Burgundio S.J.
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: Horatio Burgundio S.J. as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
The PTF Orion Project: a Possible Planet Transiting a T-Tauri Star
Creators: name: van Eyken, Julian C.
name: Ciardi, David R.
name: von Braun, Kaspar
name: Kane, Stephen R.
name: Plavchan, Peter
name: Bender, Chad F.
name: Brown, Timothy M.
name: Crepp, Justin R.
name: Fulton, Benjamin J.
name: Howard, Andrew W.
name: Howell, Steve B.
name: Mahadevan, Suvrath
name: Marcy, Geoffrey W.
name: Shporer, Avi
name: Szkody, Paula
name: Akeson, Rachel L.
name: Beichman, Charles A.
name: Boden, Andrew F.
name: Gelino, Dawn M.
name: Hoard, D. W.
name: Ramírez, Solange V.
name: Rebull, Luisa M.
name: Stauffer, John R.
name: Bloom, Joshua S.
name: Cenko, S. Bradley
name: Kasliwal, Mansi M.
name: Kulkarni, Shrinivas R.
name: Law, Nicholas M.
name: Nugent, Peter E.
name: Ofek, Eran O.
name: Poznanski, Dovi
name: Quimby, Robert M.
name: Walters, Richard
name: Grillmair, Carl J.
name: Laher, Russ
name: Levitan, David B.
name: Sesar, Branimir
name: Surace, Jason A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report observations of a possible young transiting planet orbiting a previously known weak-lined T-Tauri star in the 7-10 Myr old Orion-OB1a/25-Ori region. The candidate was found as part of the Palomar Transient Factory (PTF) Orion project. It has a photometric transit period of 0.448413 +- 0.000040 days, and appears in both 2009 and 2010 PTF data. Follow-up low-precision radial velocity (RV) observations and adaptive optics imaging suggest that the star is not an eclipsing binary, and that it is unlikely that a background source is blended with the target and mimicking the observed transit. RV observations with the Hobby-Eberly and Keck telescopes yield an RV that has the same period as the photometric event, but is offset in phase from the transit center by approximately -0.22 periods. The amplitude (half range) of the RV variations is 2.4 km/s and is comparable with the expected RV amplitude that stellar spots could induce. The RV curve is likely dominated by stellar spot modulation and provides an upper limit to the projected companion mass of M_p sin i_orb < 4.8 +- 1.2 M_Jup; when combined with the orbital inclination, i orb, of the candidate planet from modeling of the transit light curve, we find an upper limit on the mass of the planetary candidate of M_p < 5.5 +- 1.4 M_Jup. This limit implies that the planet is orbiting close to, if not inside, its Roche limiting orbital radius, so that it may be undergoing active mass loss and evaporation.
description: Corrected typos, minor clarifications; minor updates/corrections to affiliations and bibliography. 35 pages, 10 figures, 3 tables. Accepted to ApJ
title: Johann Ulrich Meurer
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: Johann Ulrich Meurer as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Electric field control of the magnetic chiralities in ferroaxial multiferroic RbFe(MoO4)2
Creators: name: Hearmon, Alexander J.
name: Fabrizi, Federica
name: Chapon, Laurent C.
name: Johnson, R. D.
name: Prabhakaran, Dharmalingam
name: Streltsov, Sergey V.
name: Brown, P. J.
name: Radaelli, Paolo G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The coupling of magnetic chiralities to the ferroelectric polarisation in multiferroic RbFe(MoO$_4$)$_2$ is investigated by neutron spherical polarimetry. Because of the axiality of the crystal structure below $T_\textrm{c}$ = 190 K, helicity and triangular chirality are symmetric-exchange coupled, explaining the onset of the ferroelectricity in this proper-screw magnetic structure - a mechanism that can be generalised to other systems with "ferroaxial" distortions in the crystal structure. With an applied electric field we demonstrate control of the chiralities in both structural domains simultaneously.
description: 5 pages, 4 figures
title: Löhne, Renten und Haushaltseinkommen sind in den vergangenen 25 Jahren real gestiegen
Creators: name: Grabka, Markus M.
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: D31 Personal Income, Wealth, and Their Distributions
subject: I31 General Welfare
subject: J31 Wage Level and Structure; Wage Differentials
subject: Wages
subject: Income inequality
subject: poverty
subject: SOEP

description: Sowohl die Bruttolöhne als auch die bedarfsgewichteten Haushaltsnettoeinkommen haben in Deutschland seit 1995 inflationsbereinigt deutlich zugelegt. Insbesondere unter Vollzeitbeschäftigten fallen die realen Zuwächse bei den Löhnen mit einem Plus von mehr als 20 Prozent besonders positiv aus. Die Ungleichheit der Stundenlöhne nimmt in den letzten Jahren ab und erreicht wieder ein Niveau wie zu Beginn der 2000er Jahre. Parallel schrumpft auch der Niedriglohnsektor in Deutschland. Die Haushaltsnettoeinkommen steigen zwischen 1995 und 2019 im Schnitt real um 26 Prozent. Alle Einkommensdezile legen zu, besonders stark das oberste Dezil. Der Anteil der NiedrigeinkommensbezieherInnen stagniert seit 2015 bei rund 16,5 Prozent. Mit der aktuell stark steigenden Inflation besteht die Gefahr, dass die Reallöhne und auch die Haushaltsnettoeinkommen aber künftig eher sinken. Die Politik sollte dem zielgerichtet entgegenwirken, vor allem für die unteren Einkommensgruppen. Die beschlossene Energiepreispauschale weist hier grundsätzlich in die richtige Richtung. Jedoch sollten auch für Gruppen, die hiervon nicht profitieren, wie RentnerInnen und Studierende, ergänzende finanzielle Unterstützungsprogramme aufgelegt werden.
description: DIW Wochenbericht, 89 (2022), 23, S. 329-337