cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Krankenhausfusionen können sich auf das Leistungsangebot auswirken
Creators: name: Herrera-Araujo, Daniel
name: Piechucka, Joanna
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: C23 Single Equation Models; Single Variables: Models with Panel Data; Longitudinal Data; Spatial Time Series
subject: I11 Analysis of Health Care Markets
subject: L40 Antitrust Issues and Policies: General
subject: mergers
subject: industry concentration
subject: hospital industry

description: In den letzten Jahrzehnten kam es auf vielen europäischen Krankenhausmärkten zu einer Fusionswelle, die zu einer zunehmenden Marktkonzentration geführt hat. Die Auswirkungen von Krankenhausfusionen und die wirksame Durchsetzung von Wettbewerbsrecht wurden von der Politik diskutiert, aber wissenschaftlich nicht ausreichend beleuchtet. Im vorliegenden Bericht wird anhand des französischen Krankenhaussektors im Zeitraum 2009 bis 2017 untersucht, wie sich Krankenhausfusionen auf das Leistungsangebot auswirken. Der Bericht kommt zu dem Ergebnis, dass lokale Fusionen zu einer Veränderung des Leistungsspektrums führen können. Zum Beispiel reduzieren fusionierende Krankenhäuser das Angebot an Doppelleistungen. Die Ergebnisse legen nahe, dass die Wettbewerbsbehörden diese strategischen Reaktionen bei ihrer Analyse berücksichtigen sollten, wenn sie ex ante über die Genehmigung von Fusionen entscheiden. Die Erkenntnisse sind auch für den deutschen Krankenhaussektor von besonderer Bedeutung, da dieser in einem ähnlichen rechtlichen Rahmen agiert wie der französische.
description: DIW Wochenbericht, 88 (2021), 33, S. 547-554
Models for low-energy Lorentz violation in the photon sector: Addendum to 'Consistency of isotropic modified Maxwell theory'
Creators: name: Klinkhamer, F. R.
name: Schreck, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous article [arXiv:1011.4258], we established the consistency of isotropic modified Maxwell theory for a finite range of the Lorentz-violating parameter \tilde{kappa}_{tr}, which includes both positive and negative values of \tilde{kappa}_{tr}. As an aside, we mentioned the existence of a physical model which, for low-energy photons, gives rise to isotropic modified Maxwell theory with a positive parameter \tilde{kappa}_{tr} (corresponding to a "slow" photon). Here, we present a related model which gives rise to isotropic modified Maxwell theory with a negative parameter \tilde{kappa}_{tr} (corresponding to a "fast" photon). Both models have an identical particle content, photon and Dirac particles, but differ in the type of spacetime manifold considered.
description: 6 pages, v4: published version
title: Correlation of British Thyroid Association U grading with rate of malignancy in incidental focal thyroid FDG avidity - a West of Scotland study
Creators: name: Foo, Sin Yee
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: Ultrasound
subject: PET-CT
subject: Thyroid / Parathyroids

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: According to a recent meta-analysis, incidence of malignant thyroid lesions incidentally picked up on PET-CT for other primary malignancy is up to 35% although other articles suggest this rate may be lower. For FDG-avid nodules, British Thyroid...
title: Cholesteatoma. Correlation between MRI and CT and assessment of turbo spin echo DWI.
Creators: name: Santos Velasco, Pablo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Inflammation
subject: Infection
subject: Puncture
subject: Catheters
subject: Teleradiology
subject: MR
subject: CT
subject: Neuroradiology brain
subject: Emergency
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Our main objective is to ilustrate the typical radiological signs in CT and MRI that make us think of cholesteatoma, as well as show the anatomical structures that are most affected by this pathology. We also intend to review turbo spin-echo...
Synchronization of passes in event and spatiotemporal soccer data
Creators: name: Biermann, Henrik
name: Komitova, Rumena
name: Raabe, Dominik
name: Müller-Budack, Eric
name: Ewerth, Ralph
name: Memmert, Daniel
Publisher: name: [London] : Macmillan Publishers Limited, part of Springer Nature
Year: 2023
Subjects: subject: Applied mathematics
subject: Scientific data
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: The majority of soccer analysis studies investigates specific scenarios through the implementation of computational techniques, which involve the examination of either spatiotemporal position data (movement of players and the ball on the pitch) or event data (relating to significant situations during a match). Yet, only a few applications perform a joint analysis of both data sources despite the various involved advantages emerging from such an approach. One possible reason for this is a non-systematic error in the event data, causing a temporal misalignment of the two data sources. To address this problem, we propose a solution that combines the SwiftEvent online algorithm (Gensler and Sick in Pattern Anal Appl 21:543–562, 2018) with a subsequent refinement step that corrects pass timestamps by exploiting the statistical properties of passes in the position data. We evaluate our proposed algorithm on ground-truth pass labels of four top-flight soccer matches from the 2014/15 season. Results show that the percentage of passes within half a second to ground truth increases from 14 to 70%, while our algorithm also detects localization errors (noise) in the position data. A comparison with other models shows that our algorithm is superior to baseline models and comparable to a deep learning pass detection method (while requiring significantly less data). Hence, our proposed lightweight framework offers a viable solution that enables groups facing limited access to (recent) data sources to effectively synchronize passes in the event and position data.
title: Portosystemic derivations in portal hypertension: our results in 20 patients
Creators: name: Miras Ventura, José Antonio
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Interventional non-vascular
subject: Percutaneous
subject: Catheter venography
subject: Drainage
subject: Shunts
subject: Haemodynamics / Flow dynamics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: TIPS (Transjugular Intrahepatic Portosystemic Shunt) is a percutaneous method whose objective is to partially decompress the portal system, deriving part of portal flow to systemic circulation and maintaining a certain degree of intrahepatic portal...
title: MRI findings of Central Nervous System lymphoid vessels: a review of the radiological and scientific literature and discussion of neuroimmunological implications
Creators: name: Coughlan, Fionn
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pathology
subject: Inflammation
subject: Cerebrospinal fluid
subject: Physiological studies
subject: Physics
subject: Education
subject: PACS
subject: MR-Angiography
subject: MR
subject: Neuroradiology brain
subject: Contrast agents
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The discovery of brain lymphoid vessels in 2015 was named “Science Breakthrough of the Year”. It is a significant discovery for neuroscientists, neurologists and neuroradiologists in terms of elucidating the mechanisms of neuroimmunological...
Correcting the apparent mutation rate acceleration at shorter time scales under a Jukes-Cantor model
Creators: name: Tuffley, Christopher
name: White, Timothy
name: Hendy, Michael D.
name: Penny, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences
subject: 92D15

description: At macroevolutionary time scales, and for a constant mutation rate, there is an expected linear relationship between time and the number of inferred neutral mutations (the "molecular clock"). However, at shorter time scales a number of recent studies have observed an apparent acceleration in the rate of molecular evolution. We study this apparent acceleration under a Jukes-Cantor model applied to a randomly mating population, and show that, under the model, it arises as a consequence of ignoring short term effects due to existing diversity within the population. The acceleration can be accounted for by adding the correction term h_0e^{-4mu*t/3} to the usual Jukes-Cantor formula p(t)=(3/4)(1-e^{-4mu*t/3}), where h_0 is the expected heterozygosity in the population at time t=0. The true mutation rate mu may then be recovered, even if h_0 is not known, by estimating mu and h_0 simultaneously using least squares. Rate estimates made without the correction term (that is, incorrectly assuming the population to be homogeneous) will result in a divergent rate curve of the form mu_{div}=mu+C/t, so that the mutation rate appears to approach infinity as the time scale approaches zero. While our quantitative results apply only to the Jukes-Cantor model, it is reasonable to suppose that the qualitative picture that emerges also applies to more complex models. Our study therefore demonstrates the importance of properly accounting for any ancestral diversity, as it may otherwise play a dominant role in rate overestimation.
description: LaTeX; 11 pages, 3 graphs. v3: Typoes corrected, including some in formulae. v2: Abstract, introduction and conclusions significantly rewritten to better reflect and explain the significance of the results
Entropic force approach to noncommutative Schwarzschild black holes signals a failure of current physical ideas
Creators: name: Mehdipour, S. Hamid
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, a new perspective of gravitational-thermodynamic duality as an entropic force arising from alterations in the information connected to the positions of material bodies is found. In this paper, we generalize some aspects of this model in the presence of noncommutative Schwarzschild black hole by applying the method of coordinate coherent states describing smeared structures. We implement two different distributions: (a) Gaussian and (b) Lorentzian. Both mass distributions prepare the similar quantitative aspects for the entropic force. Our study shows, the entropic force on the smallest fundamental unit of a holographic screen with radius $r_0$ vanishes. As a result, black hole remnants are unconditionally inert even gravitational interactions do not exist therein. So, a distinction between gravitational and inertial mass in the size of black hole remnant is observed, i.e. the failure of the principle of equivalence. In addition, if one considers the screen radius to be less than the radius of the smallest holographic surface at the Planckian regime, then one encounters some unusual dynamical features leading to gravitational repulsive force and negative energy. On the other hand, the significant distinction between the two distributions is conceived to occur around $r_0$, and that is worth of mentioning: at this regime either our analysis is not the proper one, or non-extensive statistics should be employed.
description: 15 pages, 2 figures, new references added, minor revision, Title changed, to appear in EPJ Plus
title: Effizienz von internationaler Klimafinanzierung kann deutlich erhöht werden: Interview
Creators: name: Lüpke, Heiner Von
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 32, S. 540
Optical stimulated-Raman sideband spectroscopy of a single 9Be+ ion in a Penning trap
Creators: name: Cornejo, Juan M.
name: Brombacher, Johannes
name: Coenders, Julia A.
name: Boehn, Moritz Von
name: Meiners, Teresa
name: Niemann, Malte
name: Ulmer, Stefan
name: Ospelkaus, Christian
Publisher: name: College Park, MD : APS
Year: 2023
Subjects: subject: Atom & ion cooling
subject: Coherent control
subject: Laser spectroscopy
subject: Penning traps
subject: Quantum state engineering
subject: Quantum state transfer
subject: Zeeman effect
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We demonstrate optical sideband spectroscopy of a single 9Be+ ion in a cryogenic 5 tesla Penning trap using two-photon stimulated-Raman transitions between the two Zeeman sublevels of the 1s22s ground state manifold. By applying two complementary coupling schemes, we accurately measure Raman resonances with and without contributions from motional sidebands. From the latter we obtain an axial sideband spectrum with an effective mode temperature of (3.1±0.4) mK. These results are a key step for quantum logic operations in Penning traps, applicable to high-precision matter-antimatter comparison tests in the baryonic sector of the standard model.
title: Globale Kooperation als neues Leitbild der Internationalen Klimafinanzierung
Creators: name: Lüpke, Heiner Von
name: Aebischer, Charlotte
name: Neuhoff, Karsten
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: collective action
subject: international climate finance
subject: industry climate neutrality

description: Um das Ziel zu erreichen, die Erderwärmung auf maximal 1,5 Grad zu begrenzen, ist es notwendig, dass Industriestaaten Entwicklungsländer finanziell unterstützen. Die vertraglichen Bedingungen, unter denen diese Unterstützung geleistet wird, werden als Internationale Klimafinanzierung bezeichnet. Aufbauend auf Experteninterviews mit Fokus auf den Industriesektor analysiert dieser Beitrag die verschiedenen Stränge der Internationalen Klimafinanzierung und macht Vorschläge, wie ihre Effizienz gesteigert werden kann. Internationale Klimafinanzierung orientiert sich aktuell stark an der Entwicklungszusammenarbeit und versucht, Anreize und Unterstützung für nationale Bemühungen zur CO2-Minderung zu schaffen. Es wird vorgeschlagen, Internationale Klimafinanzierung stärker an den Prinzipien globaler Kooperation nach Ostrom zu orientieren. Zu diesen Prinzipien gehört, dass auch Geberländer die finanzielle Unterstützung an Nehmerländer mit eigenen klimapolitischen Anstrengungen verbinden (Reziprozität). Auch Wissensaustausch und technische Zusammenarbeit können das gegenseitige Vertrauen stärken und das gesellschaftliche Bewusstsein sowohl bei Geber- wie auch Nehmerländern vergrößern. Würden die Instrumente der Internationalen Klimafinanzierung nach diesen Prinzipien umgestaltet, könnten sie verstärkte nationale Schritte zur CO2-Minderung legitimieren und eine internationale Dynamik unterstützen, die die Transition zur Klimaneutralität beschleunigen könnte.
description: DIW Wochenbericht, 88 (2021), 32, S. 531-539
title: Diagnosis and causes of bowel obstruction: What does the surgeon need to know?
Creators: name: alonso diego, Isabel
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Abdomen
subject: Emergency
subject: Small bowel
subject: CT
subject: eLearning
subject: Obstruction / Occlusion
subject: Acute

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Knowing the findings by image of bowel obstruction and detect complications that require...
On an exotic Lagrangian torus in $\mathbb{C}P^2$
Creators: name: Wu, Weiwei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: We find a non-displaceable Lagrangian torus fiber in a semi-toric system, which is superheavy with respect to certain symplectic quasi-state. In particular, this proves Lagrangian $\RR P^2$ is not a stem in $\CC P^2$, answering a question of Entov and Polterovich.
description: Largely modified on the second version. Comments welcome
title: Use of Novel Auto-expandable Metal Ureteral Stent in the Treatment of Ureter Stenosis in Kidney Transplanted Patients
Creators: name: Domínguez Paillacho, Ignacio
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Transplantation
subject: Stents
subject: Dilation
subject: Fluoroscopy
subject: Urinary Tract / Bladder
subject: Kidney
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the medium and long-term complications of using the Uventa ureteral stent, a double-layered, coated, ureteral self-expanding metallic mesh stent (SEMS) for managing benign ureteral strictures in kidney transplanted patients....
title: 11C-Acetate uptake on Positron Emission Tomography (PET) as a novel biomarker for hypoxic gene expression in Hepatocellular Carcinoma (HCC) – a preclinical study.
Creators: name: Khong, Pek-lan
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Liver
subject: Oncology
subject: Molecular imaging
subject: PET-MR
subject: Comparative studies
subject: Diagnostic procedure
subject: Cancer
subject: Genetic defects

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Primary Liver cancer (Hepatocellular Carcinoma, HCC) is the 3 rd leading cause of cancer-related mortality worldwide (1). Over the past decade, combined 11 C-acetate and 2-deoxy-2-( 18 F)fluoro-D-glucose ( 18 F-FDG) dual-tracer Positron-Emission...
title: Transitional syndrome after spine fusion and its correlation with sagittal balance
Creators: name: Arruda, PEDRO
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Instrumentation
subject: MR
subject: CT
subject: Conventional radiography
subject: Musculoskeletal spine

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To understand the concepts oftransitionalsyndrome (adjacent segment disease) after spine fusion. To identify the main sagittal curvatures, including the pelvic incidence and its correlates. To understand the rules for sagittal...
title: Diagnostic Dilemma in MR Imaging of Spinal Dysraphism
Creators: name: Nagarajan, Suriyaprakash
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal spine
subject: Paediatric
subject: MR
subject: Diagnostic procedure
subject: Congenital

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: ...
Decision making with inference and learning methods
Creators: name: Hoffman, Matthew William
Publisher: name: University of British Columbia
Year: 2013

description: In this work we consider probabilistic approaches to sequential decision making. The ultimate goal is to provide methods by which decision making problems can be attacked by approaches and algorithms originally built for probabilistic inference. This allows us to directly apply a wide variety of popular, practical algorithms to these tasks. In Chapter 1 we provide an overview of the general problem of sequential decision making and a broad description of various solution methods. Much of the remaining work of this thesis then proceeds by relying upon probabilistic reinterpretations of the decision making process. This strategy of reducing learning problems to simpler inference tasks has been shown to be very fruitful in much of machine learning, and we expect similar improvements to arise in the control and reinforcement learning fields. The approaches of Chapters 2–3 build upon the framework of [Toussaint and Storkey, 2006] in reformulating the solution of Markov decision processes instead as maximum-likelihood estimation in an equivalent probabilistic model. In Chapter 2 we utilize this framework to construct an Expectation Maximization algorithm for continuous, linear-Gaussian models with mixture-of-Gaussian rewards. This approach extends popular linear-quadratic reward models to a much more general setting. We also show how to extend this probabilistic framework to continuous time processes. Chapter 3 further builds upon these methods to introduce a Bayesian approach to policy search using Markov chain Monte Carlo. In Chapter 4 we depart from the setting of direct policy search and instead consider value function estimation. In particular we utilize least-squares temporal difference learning to reduce the problem of value function estimation to a more standard regression problem. In this chapter we specifically tackle the use of regularization methods in order to encourage sparse solutions. In Chapters 5–6 we consider the task of optimization as a sequential decision problem. In the first of these chapters we introduce the bandit framework and discuss a number of variations. Then in Chapter 6 we discuss a related approach to optimization utilizing Bayesian estimates of the underlying, unknown function. We finally introduce a novel approach to choose between different underlying point selection heuristics.
title: Challenges of setting up a dose monitoring system for paediatric interventional radiology (IR) studies
Creators: name: Kelly, Charlotte
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Venous access
subject: Dosimetry
subject: Fluoroscopy
subject: Radioprotection / Radiation dose
subject: Paediatric
subject: Interventional vascular
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Fluoroscopic imaging during Interventional Radiology (IR) studies can potentially deliver a high level of ionizing radiation dose to patients. Although the focusin recent years has been on Computed Tomography, IR has been increasingly identified as...
title: Worth the risk? The effect of intraarticular levobupivacaine vs saline on post-arthrography pain
Creators: name: Jaring, Matthew
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal joint
subject: Extremities
subject: Musculoskeletal system
subject: Fluoroscopy
subject: Percutaneous
subject: Comparative studies
subject: Equipment
subject: Efficacy studies
subject: Toxicity
subject: Drugs / Reactions
subject: Outcomes

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Post-arthrography pain isa well documented side effect of the intraarticular injection of contrast media, generally prior to computed tomography (CT) or, Magnetic resonance imaging (MRI). Studies have shown this pain is both predictable and...
Armutsmigration
Creators: name: Barwick-Gross, Christine
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Rassifizierung
subject: EU-Freizügigkeit
subject: Prekarität
subject: innereuropäische Migration aus Osteuropa
subject: Rom:nja und Sinti:ze
subject: 300 - Sozialwissenschaften, Soziologie, Anthropologie
subject: 02.00 - Wissenschaft und Kultur allgemein: Allgemeines

description: Im vorliegenden Beitrag wird der mediale und politische Diskurs rund um Armutsmigration nachgezeichnet, wie er sich in Deutschland in den Jahren 2013 bis 2016 entwickelt hat. Mit dem Beitritt Rumäniens und Bulgariens in die EU und insbesondere dem anstehenden Ende der Freizügigkeitsbeschränkungen (2014) nahm in Deutschland die Angst vor einer ‚Masseneinwanderung‘ von ‚Armutsmigrant:innen‘ stark zu. Sowohl in den Medien als auch in politischen Debatten wurde dabei die Einwanderung ökonomisch schwacher rumänischer und bulgarischer Bürger:innen, einschließlich Rom:nja, als Bedrohung dargestellt, für die öffentliche Ordnung vor allem in Städten, aber auch für die sozialen Sicherungssysteme. Wie verschiedene Autor:innen gezeigt haben, findet durch die Bezeichnung als ‚Armutsmigrant‘ vielfach eine Rassifizierung statt. Angenommene negative Charakterzüge werden dabei auf eine Gruppe übertragen und fungieren als Ausdruck ihrer ‚Kultur‘. Armutsmigrant:innen wird vorgeworfen, sie wanderten ein, um von Sozialleistungen zu profitieren – teils durch kriminelle Aktivitäten – und nicht, um im Land zu arbeiten. Die Einführung zweier Gesetze, die den Zugang zu Sozialleistungen deutlich einschränken, sowie alltägliche Verwaltungspraktiken (etwa bei der Agentur für Arbeit) zeigen, wie sich der Diskurs über Armutsmigration materialisiert hat und bereits prekäre Gruppen weiter benachteiligt. Nicht zuletzt stellt der Beitrag auch Verbindungen zu ähnlichen Debatten her, etwa zum Diskurs über sogenannte Armutsflüchtlinge.
Topological conditions for the representation of preorders by continuous utilities
Creators: name: Minguzzi, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Topology (math.GN)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 54F05, 54E55, 54D50

description: We remove the Hausdorff condition from Levin's theorem on the representation of preorders by families of continuous utilities. We compare some alternative topological assumptions in a Levin's type theorem, and show that they are equivalent to a Polish space assumption.
description: 10 pages. v2: minor corrections, slight change of title
title: Lutetium-177: a game changer Theranostic agent
Creators: name: Vyas, Madhusudan
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Oncology
subject: Molecular imaging
subject: Hybrid Imaging
subject: SPECT-CT
subject: SPECT
subject: Nuclear medicine conventional
subject: Radionuclide therapy
subject: Radiation safety
subject: Outcomes analysis
subject: Cancer
subject: Metastases
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Understand the evolving theranostic applications of a promising radionuclide Lutetium-177 (Lu 177 ). Review and highlight the role of Lu 177 in improving the quality of life for patients affected with Neuroendocrine tumours (NETs) and metastatic...
On the renormalization group fixed point of the two-dimensional Ising model at criticality
Creators: name: Stottmeister, Alexander
name: Osborne, Tobias J.
Publisher: name: [London] : Macmillan Publishers Limited, part of Springer Nature
Year: 2023
Subjects: subject: Phase transitions and critical phenomena
subject: Quantum information
subject: Quantum simulation
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: We analyze the renormalization group fixed point of the two-dimensional Ising model at criticality. In contrast with expectations from tensor network renormalization (TNR), we show that a simple, explicit analytic description of this fixed point using operator-algebraic renormalization (OAR) is possible. Specifically, the fixed point is characterized in terms of spin-spin correlation functions. Explicit error bounds for the approximation of continuum correlation functions are given.
Signatures of quantum criticality in the thermopower of Ba(Fe(1-x)Co(x))2As2
Creators: name: Arsenijević, S.
name: Hodovanets, H.
name: Gaál, R.
name: Forró, L.
name: Bud'ko, S. L.
name: Canfield, P. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We demonstrate that the thermopower (S) can be used to probe the spin fluctuations (SFs) in proximity to the quantum critical point (QCP) in Fe-based superconductors. The sensitivity of S to the entropy of charge carriers allows us to observe an increase of S/T in Ba(Fe(1-x)Co(x))2As2 close to the spin-density-wave (SDW) QCP. This behavior is due to the coupling of low-energy conduction electrons to two-dimensional SFs, similar to heavy-fermion systems. The low-temperature enhancement of S/T in the Co substitution range 0.02 < x < 0.1 is bordered by two Lifshitz transitions, and it corresponds to the superconducting region, where a similarity between the electron and non-reconstructed hole pockets exists. The maximal S/T is observed in proximity to the commensurate-to-incommensurate SDW transition, for critical x_c ~ 0.05, close to the highest superconducting T_c. This analysis indicates that low-T thermopower is influenced by critical spin fluctuations which are important for the superconducting mechanism.
title: Informelles Lernen von Praxisanleitenden mit Instagram und dessen Auswirkungen auf das berufliche Handeln
Creators: name: Krenz, Marianne
Publisher: name: Katholische Hochschule Nordrhein-Westfalen, Köln
Year: 2025
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften

description: In sozialen Medien lässt sich eine Zunahme pflegebezogener Beiträge beobachten. Diese Entwicklung ist auch im Bereich der Praxisanleitung festzustellen. Daraus lässt sich die Frage ableiten, inwiefern Praxisanleitende solche Inhalte konsumieren und nutzen. Insbesondere ist von Interesse, ob sie daraus lernen, und ob Instagram als informelle Lernquelle dient.

Ziel dieser Arbeit ist zu untersuchen, ob Praxisanleitende Instagram als informelle Lernplattform nutzen und ob sich diese Nutzung auf ihr berufliches Handeln auswirkt. Zu diesem Zweck wurden drei Forschungsfragen formuliert: Wie wird Instagram von Praxisanleitenden als Plattform für berufsbezogenes informelles Lernen genutzt? Welche Inhalte auf Instagram erachten Praxisanleitende als relevant für ihre berufliche Praxis? Welche Auswirkungen der Nutzung von Instagram werden auf das berufliche Handeln von Praxisanleitenden wahrgenommen?

Zur Beantwortung dieser Fragen wurde eine qualitative Untersuchung in Form von halbstrukturierten, leitfadengestützten Einzelinterviews mit acht überwiegend freigestellten Praxisanleitenden, die regelmäßig Instagram nutzen, durchgeführt.

Die Ergebnisse zeigen, dass Praxisanleitende Instagram als informelle Lernplattform vielfältig nutzen. Dabei suchen sie überwiegend selbstgesteuert nach Informationen, beobachten und probieren bewährte Praktiken aus, suchen den Austausch mit anderen oder setzen sich kritisch mit Beiträgen auseinander. Berufsbezogene Inhalte, wie Erfahrungsberichte anderer Praxisanleitenden, berufspolitische Entwicklungen sowie pflegefachliche oder andere berufsbezogene Inhalte erachten sie als wichtig für ihre berufliche Praxis und identifizieren das Kriterium der Wissenschaftlichkeit dabei als maßgeblich. Die Nutzung von Instagram führt zu Auswirkungen auf das berufliche Handeln. Es lassen sich die Imitation bewährter Methoden, die Entwicklung des Berufsstolzes, berufliche Weiterentwicklung, Inspiration und die Selbstreflexion des beruflichen Handelns wahrnehmen.

Weiterführende Forschung sollte sich auf das informelle Lernen stationsgebundener Praxisanleitender konzentrieren. Zu empfehlen ist die Übernahme des informellen Lernens mit sozialen Medien als Thematik in die Weiterbildung und jährliche Fortbildung der Praxisanleitenden.
Hubble Space Telescope studies of low-redshift Type Ia supernovae: Evolution with redshift and ultraviolet spectral trends
Creators: name: Maguire, K.
name: Sullivan, M.
name: Ellis, R. S.
name: Nugent, P. E.
name: Howell, D. A.
name: Gal-Yam, A.
name: Cooke, J.
name: Mazzali, P.
name: Pan, Y-C.
name: Dilday, B.
name: Thomas, R. C.
name: Arcavi, I.
name: Ben-Ami, S.
name: Bersier, D.
name: Bianco, F. B.
name: Fulton, B. J.
name: Hook, I.
name: Horesh, A.
name: Hsiao, E.
name: James, P. A.
name: Podsiadlowski, P.
name: Walker, E. S.
name: Yaron, O.
name: Kasliwal, M. M.
name: Laher, R. R.
name: Law, N. M.
name: Ofek, E. O.
name: Poznanski, D.
name: Surace, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of the maximum light, near ultraviolet (NUV; 2900-5500 A) spectra of 32 low redshift (0.001
description: 22 pages, 14 figures, accepted in MNRAS with minor changes - Spectra are available on WISeREP, http://www.weizmann.ac.il/astrophysics/wiserep/
title: Percutaneous management of traumatic biliary tract injury
Creators: name: Pajon, Alejandra
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Percutaneous
subject: Cholangiography
subject: Stents
subject: Catheters
subject: Trauma

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To identify the importance of a percutaneous approach as an alternative treatment of biliary tract injuries To understand the different percutaneous techniques and their application in biliary track injuries as well as their...
title: Restriktive US-Handelspolitik wirkt signifikant negativ auf Finanzmärkte
Creators: name: Boer, Lukas
name: Menkhoff, Lukas
name: Rieth, Malte
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: F13 Trade Policy; International Trade Organizations
subject: F51 International Conflicts; Negotiations; Sanctions
subject: G10 General Financial Markets: General (includes Measurement and Data)
subject: Trade policy shock
subject: structural VAR
subject: stock prices
subject: exchange rates
subject: interest rates
subject: heteroskedasticity

description: Mit ihrer America-First-Strategie hat sich die letzte US-Regierung von einer international ausgerichteten Handelspolitik abgewendet. Sie versuchte, ihre Interessen, gerade gegenüber China, mit bilateralen und meist restriktiven Maßnahmen, wie Importzöllen, durchzusetzen. Der Beitrag zeigt, dass die Kosten einer solchen Strategie immens sind, jedenfalls in der hier mittelfristig angelegten Analyse. Fast alle US-Branchen waren negativ von der US-Handelspolitik betroffen. Dies lässt sich an den Finanzmärkten ablesen, die aufgrund ihres vorausschauenden Charakters die möglichen Wirkungen von Zolländerungen antizipieren. Die Aktienkurse fielen signifikant, der Dollar-Kurs stieg infolge der steigenden Unsicherheit. Die Maßnahmen gegen China wirkten darüber hinaus auch negativ auf die Aktienleitindizes vieler anderer Länder. Chinas Vergeltungsmaßnahmen belasteten die US-Unternehmen zusätzlich. Da kaum ein Unternehmen profitierte, liegt die Rationalität dieser Politik offensichtlich nicht in ökonomischen Gewinnen. Die neue US-Regierung behält die restriktive Handelspolitik zwar noch bei. Doch die Studie zeigt, dass eine weitgehende Rückkehr zu einer multilateralen Ordnung im Interesse der meisten Marktteilnehmer ist.
description: DIW Wochenbericht, 88 (2021), 31, S. 519-526
Replica theory of the rigidity of structural glasses
Creators: name: Yoshino, Hajime
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a first principle scheme to compute the rigidity, i. e. the shear-modulus of structural glasses at finite temperatures using the cloned liquid theory, which combines the replica theory and the liquid theory. With the aid of the replica method which enables disentanglement of thermal fluctuations in liquids into intra-state and inter-state fluctuations, we extract the rigidity of metastable amorphous solid states in the supercooled liquid and glass phases. The result can be understood intuitively without replicas. As a test case, we apply the scheme to the supercooled and glassy state of a binary mixture of soft-spheres. The result compares well with the shear-modulus obtained by a previous molecular dynamic simulation. The rigidity of metastable states is significantly reduced with respect to the instantaneous rigidity, namely the Born term, due to non-affine responses caused by displacements of particles inside cages at all temperatures down to T=0. It becomes nearly independent of temperature below the Kauzmann temperature T_K. At higher temperatures in the supercooled liquid state, the non-affine correction to the rigidity becomes stronger suggesting melting of the metastable solid state. Inter-state part of the static response implies jerky, intermittent stress-strain curves with static analogue of yielding at mesoscopic scales.
description: 52 pages, 10 figures
title: Für die USA ergeben sich keine Vorteile aus der restriktiven Handelspolitik: Interview
Creators: name: Boer, Lukas
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 31, S. 527
Nonstandard interactions of tau neutrino via charged Higgs and $W'$ contribution
Creators: name: Rashed, Ahmed
name: Duraisamy, Murugeswaran
name: Datta, Alakabha
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider charged Higgs and $W'$ gauge boson contributions to the quasielastic scattering $ν_τ+ n \rightarrow τ^- + p$ and $\barν_τ+ p \rightarrow τ^+ + n$ . These effects modify the standard model cross section for these processes and thus impact the extraction of the neutrino mixing angles $θ_{23}$ and $θ_{13}$ . We include form factor effects in our calculations and find the deviation of the actual mixing angle from the measured one, assuming the standard model cross section, can be significant and can depend on the energy of the neutrino.
description: 23 pages, 19 figures
title: Title: The evaluation of ultralow dose CT urography using Tin filter: Comparison with standard-dose CT urography.
Creators: name: Narikiyo, Koji
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cystography / Uretrography
subject: CT
subject: Urinary Tract / Bladder
subject: Radiation physics
subject: Abdomen
subject: Image registration

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: CT urography (CTU) has been commonly used in many centers. CTU involves multiphasic imaging, such like using three phase protocol which mean effective dose was reported up to 20.1 mSv. The effective doses of one phase CTU have been reported 8.8 mSv...
Erythropoietin mitigated thioacetamide-induced renal injury via JAK2/STAT5 and AMPK pathway
Creators: name: Elbaset, Marawan A.
name: Mohamed, Bassim M. S. A.
name: Gad, Shaimaa A.
name: Afifi, Sherif M.
name: Esatbeyoglu, Tuba
name: Abdelrahman, Sahar S.
name: Fayed, Hany M.
Publisher: name: [London] : Macmillan Publishers Limited, part of Springer Nature
Year: 2023
Subjects: subject: Kidney
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: The kidney flushes out toxic substances and metabolic waste products, and homeostasis is maintained owing to the kidney efforts. Unfortunately, kidney disease is one of the illnesses with a poor prognosis and a high death rate. The current investigation was set out to assess erythropoietin (EPO) potential therapeutic benefits against thioacetamide (TAA)-induced kidney injury in rats. EPO treatment improved kidney functions, ameliorated serum urea, creatinine, and malondialdehyde, increased renal levels of reduced glutathione, and slowed the rise of JAK2, STAT5, AMPK, and their phosphorylated forms induced by TAA. EPO treatment also greatly suppressed JAK2, Phosphatidylinositol 3-kinases, and The Protein Kinase R-like ER Kinase gene expressions and mitigated the histopathological alterations brought on by TAA toxicity. EPO antioxidant and anti-inflammatory properties protected TAA-damaged kidneys. EPO regulates AMPK, JAK2/STAT5, and pro-inflammatory mediator synthesis.
title: Situs abnormalities associated with congenital heart diseases: tips for successful CTA imaging and diagnosis.
Creators: name: Musayeva, Leyla
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Congenital
subject: Education
subject: Diagnostic procedure
subject: Computer Applications-3D
subject: CT-Angiography
subject: CT
subject: Paediatric
subject: Cardiovascular system

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review types of situs abnormalities. To give tips for an accurate CTA evaluation of paediatric patients with visceral situs abnormality associated with cardiovascular anomalies. To describe step-by step their CT characterization by using...
title: MR Arthrography of the Spring Ligament : A new application of intra articular contrast
Creators: name: Omoumi, Patrick
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Trauma
subject: Athletic injuries
subject: Diagnostic procedure
subject: Contrast agent-other
subject: Arthrography
subject: Ultrasound
subject: MR
subject: Musculoskeletal soft tissue
subject: Musculoskeletal joint

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Todescribe a new application of Arthro-MRIin the Talonavicular(TN) joint for the evaluation of the Springligament. Detect the contrast passage from the TN joint to the sheath of the posterior tibial tendon as a sign of ligament rupture. Assess the...
Topological susceptibility in Lattice QCD with unimproved Wilson fermions
Creators: name: Chowdhury, Abhishek
name: De, Asit K.
name: De Sarkar, Sangita
name: Harindranath, A.
name: Mondal, Santanu
name: Sarkar, Anwesa
name: Maiti, Jyotirmoy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We address a long standing problem regarding topology in lattice simulations of QCD with unimproved Wilson fermions. Earlier attempt with unimproved Wilson fermions at β=5.6 to verify the suppression of topological susceptibility with decreasing quark mass (m_q) was unable to unambiguously confirm the suppression. We carry out systematic calculations for two degenerate flavours at two different lattice spacings (β= 5.6 and 5.8). The effects of quark mass, lattice volume and the lattice spacing on the spanning of different topological sectors are presented. We unambiguously demonstrate the suppression of the topological susceptibility with decreasing quark mass, expected from chiral Ward identity and chiral perturbation theory.
description: 1 figure and clarifying remarks added, results and conclusion unchanged. Accepted for publication in Physics Letters B
title: Euro 2020 als Vorbild für Olympia? Sportliche Großereignisse sollten mehrere Austragungsorte haben: Kommentar
Creators: name: Wagner, Gert G.
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 29/30 S. 516
title: Accessing the Liver: A Resident Educational Tool on Learning Y90 radioembolization and TACE Utilizing Detailed Clay Models with Guidewires
Creators: name: Rashid, Tariq
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Metastases
subject: Cancer
subject: Radioembolisation
subject: Chemoembolisation
subject: Arterial access
subject: Fluoroscopy
subject: CT
subject: Catheter arteriography
subject: Liver
subject: Interventional vascular
subject: Arteries / Aorta

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The goals of this educational exhibit include understanding the relevant segmental liver anatomy from a pictotorial and tactile standpoint, and a demonstration utilizing clay models with guidewires, arterial access of the liver for the purposes of...
title: Vollversorgung mit erneuerbaren Energien ist möglich und sicher: Interview
Creators: name: Kemfert, Claudia
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 29/30 S. 514
title: X-ray morphometric analysis of vertebral-motor segment condition using method of dual-energy computerised tomography based on surgical intervention findings
Creators: name: Nikitenko, Sergey
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal spine
subject: Musculoskeletal bone
subject: Musculoskeletal system
subject: CT-Quantitative
subject: CT-High Resolution
subject: CT
subject: Computer Applications-3D
subject: Computer Applications-Detection, diagnosis
subject: Computer Applications-General
subject: Demineralisation-Bone

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: OBJECTIVE : To optimise the radiologic diagnostics of the degenerative-dystrophic changes in lumbar vertebral-motor segment (VMS) on the base of the evaluated results after stabilizing surgical intervention, using dual-energy computerized tomography...
String theory duals of Lifshitz-Chern-Simons gauge theories
Creators: name: Balasubramanian, Koushik
name: McGreevy, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose candidate gravity duals for a class of non-Abelian z=2 Lifshitz Chern-Simons (LCS) gauge theories studied by Mulligan, Kachru and Nayak. These are nonrelativistic gauge theories in 2+1 dimensions in which parity and time-reversal symmetries are explicitly broken by the presence of a Chern-Simons term. We show that these field theories can be realized as deformations of DLCQ N=4 super Yang-Mills theory. Using the holographic dictionary, we identify the bulk fields that are dual to these deformations. The geometries describing the groundstates of the non-Abelian LCS gauge theories realized here exhibit a mass gap.
description: 25+14 pages, 3 figures; v2: significant corrections regarding IR geometry, resulting in new section 5; journal version
Mapping the Berry Curvature from Semiclassical Dynamics in Optical Lattices
Creators: name: Price, H. M.
name: Cooper, N. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose a general method by which experiments on ultracold gases can be used to determine the topological properties of the energy bands of optical lattices, as represented by the map of the Berry curvature across the Brillouin zone. The Berry curvature modifies the semiclassical dynamics and hence the trajectory of a wave packet undergoing Bloch oscillations. However, in two dimensions these trajectories may be complicated Lissajous-like figures, making it difficult to extract the effects of Berry curvature in general. We propose how this can be done using a "time-reversal" protocol. This compares the velocity of a wave packet under positive and negative external force, and allows a clean measurement of the Berry curvature over the Brillouin zone. We discuss how this protocol may be implemented and explore the semiclassical dynamics for three specific systems: the asymmetric hexagonal lattice, and two "optical flux" lattices in which the Chern number is nonzero. Finally, we discuss general experimental considerations for observing Berry curvature effects in ultracold gases.
description: 12 pages