cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Process Time Distribution of Driven Polymer Transport
Creators: name: Saito, Takuya
name: Sakaue, Takahiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We discuss the temporal distribution of dynamic processes in driven polymer transport inherent to flexible chains due to stochastic tension propagation. The stochasticity originates from the disordered initial configuration of an equilibrium polymer coil, which results in random paths for tension propagation. We consider the process time for when translocation occurs across a fixed pore and when stretching occurs by pulling the chain end. A scaling argument for the mean and standard deviation of the process time is provided using the two-phase picture for stochastic propagation. The two cases are found to differ remarkably. The process time distribution of the translocation exhibits substantial spreading even in the long-chain limit, unlike that found for the dynamics of polymer stretching. In addition, the process time distribution in the driven translocation is shown to have a characteristic asymmetric shape.
description: 8 page, 6 figures
СИНДРОМ ДАУНА КАК САМАЯ РАСПРОСТРАНЕННАЯ ФОРМА ХРОМОСОМНОЙ ПАТОЛОГИИ В АСПЕКТЕ ПЕДИАТРИИ
Creators: name: Зуфарова, Нодира
name: Ашурова, Дильфуза
Publisher: name: Zenodo
Year: 2025

description: В статье отражены аспекты распространённости синдрома Дауна на основании изучения литературных источников.
title: International Partnerships for a Just Energy Transition: Findings from South Africa
Creators: name: Lüpke, Heiner Von
name: Aebischer, Charlotte
name: Bolanos, Martha
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: O13 Economic Development: Agriculture; Natural Resources; Energy; Environment; Other Primary Products
subject: O19 International Linkages to Development; Role of International Organizations
subject: Q54 Climate; Natural Disasters; Global Warming
subject: H87 International Fiscal Issues; International Public Goods
subject: Just energy transition partnerships
subject: international climate finance
subject: development assistance
subject: South Africa

description: In 2021, the G7 and South Africa agreed upon the Just Energy Transition Partnership (JETP). This new instrument in international cooperation should support emerging and developing economies in a just energy transition and in phasing out coal. It is intended to facilitate equal partnerships between donors and recipients, thereby also facilitating the energy transition. An evaluation of the South African JETP shows that while it is de facto an international policy process for setting the course for the energy transition, it still lacks the necessary legitimacy and institutional framework. It can also be seen that the current finance instruments, which usually tie transfer payments to conditions, are only partially effective; they often lack the necessary flexibility in the policy process. In contrast, a joint agreement between donors and recipients that is based on shared policy goals, norms, and reciprocity can facilitate both the necessary cooperation and the subsequent just energy transition. Intensifying political dialogues, conducting mutual policy peer reviews, and improving both the regulatory framework and the legitimacy of cooperation can be useful tools for an effective partnership.
description: DIW Weekly Report, 13 (2023), 5, S. 43-49
Osteoarthritic synovial fluid rheology and correlation with protein concentration
Creators: name: Madkhali, Anwar Ali
Publisher: name: University of British Columbia
Year: 2013

description: Synovial fluid (SF) is a lubricant for articulating joints. The study of SF rheological properties has gained significance due to SF viscoelastic properties, and SF’s ability to sustain a considerable load. The rheological performance of SF is linked to the joint’s condition. A joint disease such as osteoarthritis (OA) reduces SF rheological properties. This study is aimed at investigating the shear and extensional rheological properties of osteoarthritic synovial fluid (OA SF). Additionally, this study is aimed at correlating SF rheological properties with its protein concentration. Shear rheological properties of 35 OA SF samples were investigated at a physiological temperature (37 °C) using cone-and-plate shear rheometer. Furthermore, the effects of the temperature, the centrifugation, and the storage at -20 °C for two weeks were also studied on some samples. Additionally, the time-dependent rheological properties were investigated by rotation and oscillation tests. Extensional rheological properties were studied using a capillary breakup extensional rheometer (CaBER). First, the effects of different CaBER configurations on the extensional rheological measurements were investigated in order to determine the optimal configuration. Then, the extensional rheological properties of 21 OA SF samples were studied. The protein concentrations of SF were determined using a bicinchoninic acid (BCA) protein assay kit. I also investigate the correlations between rheological properties and protein concentration. The understanding of SF rheological properties will lead to a better understanding of its lubrication properties, and to the development of a rheological analogue to SF or to a periprosthetic fluid.
Quasi-locality and efficient simulation of Markovian quantum dynamics
Creators: name: Barthel, Thomas
name: Kliesch, Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider open many-body systems governed by a time-dependent quantum master equation with short-range interactions. With a generalized Lieb-Robinson bound, we show that the evolution in this very generic framework is quasi-local, i.e., the evolution of observables can be approximated by implementing the dynamics only in a vicinity of the observables' support. The precision increases exponentially with the diameter of the considered subsystem. Hence, the time-evolution can be simulated on classical computers with a cost that is independent of the system size. Providing error bounds for Trotter decompositions, we conclude that the simulation on a quantum computer is additionally efficient in time. For experiments and simulations, our result can be used to rigorously bound finite-size effects.
description: 5 pages + 2 pages appendix, 2 figures; minor improvements; published version
title: Corporate Reporting Provides Insight into Companies’ Commitment to Gender Equality
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Thompson, Philipp Alexander
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J78 Labor Discrimination: Public Policy
subject: M12 Personnel Management; Executive Compensation
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: caccountability
subject: board composition
subject: board diversity
subject: boards of directors
subject: CEOs
subject: corporate boards
subject: corporate governance
subject: CSR
subject: diversity
subject: executive boards
subject: female directors
subject: gender equality
subject: gender quota
subject: Germany
subject: leadership positions
subject: managers
subject: non-financial disclosure
subject: non-financial reporting
subject: private companies
subject: public companies
subject: supervisory boards

description: Many companies in Germany must provide information beyond financial figures in their annual reports. For some years now, legislators have increasingly required information on non-financial aspects, such as the shares of women in leadership positions. Using a quantitative text analysis of annual reports, this second report in the 2023 DIW Berlin Women Executives Barometer shows that the major publicly listed corporations in Germany implement the reporting requirements very differently. Reporting about women and leadership positions increased overall between 2009 and 2020 in line with the requirements. However, there were clear differences in the companies’ focus: There is an equality-oriented group of companies that reports extensively about concrete measures to increase the share of women in leadership positions. This group has significantly more women on their supervisory boards than the other group, compliance-oriented companies, which seem to be mainly concerned with fulfilling the legal requirements. Companies’ reporting on women and leadership positions is thus an indicator and useful signal to outside stakeholders of how serious companies are about gender equality.
description: DIW Weekly Report, 13 (2023), 3/4, S. 32-39
title: Pediatric aortic arch variants depicted on multidetector computed tomography(MDCT)
Creators: name: Krysiak, Remigiusz
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: CT-Angiography
subject: CT
subject: Paediatric
subject: Cardiovascular system
subject: Anatomy
subject: Contrast agent-intravenous
subject: Sedation
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Aortic arch variants result from errors in the embryologic development of the branchial arches. Typically there are three main branches in the aortic arch: brachiocephalic trunk(BT), left common carotid artery(LCCA) and left subclavian...
Oxystoma ochropus
Creators: name: Ghahari, Hassan
name: Colonnelli, Enzo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Apionidae
Oxystoma
Oxystoma ochropus

description: Oxystoma ochropus (Germar, 1818)
Distribution in Iran. Alborz (Sanaei & Seiedy 2015, 2017), Ardabil (Modarres Awal 1986 as Apion ochropus; Hashemi & Lotfalizadeh 2014; Lotfalizadeh & Hashemi 2015), East Azarbaijan (Modarres Awal 1997, 2012 as Apion ochropus; Borumand 1998 as Apion (Oxystoma) ochropus; Legalov et al. 2010), Isfahan, West Azarbaijan (Borumand 1998; Modarres Awal 2012, both as Apion (Oxystoma) ochropus; Legalov et al. 2010).
General distribution. Algeria, Armenia, Austria, Azerbaijan, Bulgaria, Cyprus, Czech Republic, France, Georgia, Germany, Greece, Hungary, Iran, Israel, Italy, Lichtenstein, Luxembourg, the Netherlands, Poland, Romania, Russia, Serbia, Slovakia, Spain, Switzerland, Syria, Turkey, Ukraine.
Plant associations in Iran. Lucerne (Modarres Awal 1997), Glycine max (L.) Merr. (Fabaceae) (Borumand 1998), broad bean, sainfoin, soybean (Modarres Awal 2012), Lathyrus sativus L. (Fabaceae) (Hashemi & Lotfalizadeh 2014; Lotfalizadeh & Hashemi 2015), Fabaceae (Sanaei & Seiedy 2017).
Comments. Four species of wasps have been recorded as parasitoids of this species in Iran: Eupelmus urozonus Dalman, 1820 (Hymenoptera: Eupelmidae) (Hashemi & Lotfalizadeh 2014; Lotfalizadeh & Ghadirzadeh 2016), Eurytoma laserpitii Mayr, 1878 (Hymenoptera: Eurytomidae), Pteromalus chlorospilus (Walker, 1834) and Pteromalus sequester Walker, 1835 (Hymenoptera: Pteromalidae) (Hashemi & Lotfalizadeh 2014; Lotfalizadeh & Hashemi 2015).
description: Published as part of Ghahari, Hassan & Colonnelli, Enzo, 2020, An annotated checklist of the Iranian Brentidae (Coleoptera: Curculionoidea), pp. 151-178 in Zootaxa 4759 (2) on page 166, DOI: 10.11646/zootaxa.4759.2.1, http://zenodo.org/record/3737365
title: Comprehensive cardiac magnetic resonance for assessment of cardiac involvement in myotonic muscular dystrophy patients without known cardiovascular disease
Creators: name: Luetkens, Julian
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Tissue characterisation
subject: Imaging sequences
subject: MR
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Myotonic dystrophy (DM) is the most common degenerative disease of skeletal muscle in adults and is characterized by progressive muscle degeneration leading to disabling weakness and wasting with myotonia [1]. Cardiac involvement is common and...
title: Number of Women on Boards of Large Companies Keeps Growing: Momentum from Inclusion Requirement, However, Is Waning
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J16 Economics of Gender; Non-labor Discrimination
subject: J59 Labor-Management Relations, Trade Unions, and Collective Bargaining: Other
subject: J78 Labor Discrimination: Public Policy
subject: L21 Business Objectives of the Firm
subject: L32 Public Enterprises; Public-Private Enterprises
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: corporate boards
subject: board composition
subject: boards of directors
subject: board diversity
subject: Europe
subject: women directors
subject: executive directors
subject: gender equality
subject: gender quota
subject: Germany
subject: management
subject: private companies
subject: public companies
subject: supervisory boards
subject: executive boards
subject: CEOs
subject: women
subject: finance industry
subject: financial sector
subject: private and public banks
subject: insurance companies

description: The upward trend in women’s representation on executive and supervisory boards of major companies in Germany continued in 2022, although the overall momentum has slowed yet again. Growth on executive boards in particular has slowed, as the most recent DIW Berlin Women Executives Barometer shows: Following a significant increase at the 200 largest companies from 2020 to 2021, there was only a one-percentage-point increase to just under 16 percent in the share of women on executive boards in 2022. The greatest increases were in the DAX-40 companies, where there was a share of women on executive boards of over 20 percent for the first time, and companies with government-owned shares, where the share reached 30 percent for the first time. A similar development can be seen in supervisory boards, albeit on a higher level. This development suggests that the companies subject to the inclusion requirement for executive boards, which has been in effect since 2021, implemented it quickly, but have since slowed their efforts. With the Equal Participation of Men and Women in Leadership Positions Act and its successor, policymakers have recently significantly improved the conditions for more women in top bodies. Now companies must do the work, as gender parity remains a distant prospect in many places. Most importantly, companies should make efforts to create an inclusive work culture.
description: DIW Weekly Report, 13 (2023), 3/4, S. 20-31
title: Linear Polarization of the High-Energy End of Bremsstrahlung in Electron-Atom Collisions
Creators: name: Märtin, R.
name: Barday, R.
name: Enders, J.
name: Poltoratska, Y.
name: Spillmann, U.
name: Weber, G.
name: Stöhlker, Th.
Publisher: name: IOP Publishing
Year: 2024

description: We report on the effects of electron spin polarization on the bremsstrahlung polarization properties occuring in collisions of polarized electrons with thin target foils.
Decreto Rectoral 1798: por el cual se adopta el Reglamento del Consultorio Jurídico de la Facultad de Jurisprudencia de la Universidad del Rosario
Creators: name: Secretaria General
Publisher: name: Universidad del Rosario
Year: 2023

description: El presente Decreto Rectoral 1798, adopta el Reglamento del Consultorio Jurídico de la Facultad de Jurisprudencia. El presente Reglamento rige y será aplicable a partir de la fecha de su expedición, y deroga todas las disposiciones que le sean contrarias, especialmente el Decreto Rectoral 1538 de 2018.
Cosmological constraints for an Eddington-Born-Infeld field
Creators: name: De Felice, Antonio
name: Gumjudpai, Burin
name: Jhingan, Sanjay
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Eddington-Born-Infeld (EBI) model here without assuming any cosmological constant. The EBI scalar field is supposed to play a role of both dark matter and dark energy. Different eras in cosmology are reconstructed for the model. A comparison is drawn with $Λ$CDM model using Supernova Ia, WMAP7 and BAO data. It seems that the EBI field in this form does not give good fit to observational data in comparison to the $Λ$CDM model.
description: 8 pages, 4 figures
title: Postoperative imaging in recipients of living donor liver transplantation
Creators: name: Shalaby, Sherif
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Outcomes
subject: Transplantation
subject: Cancer
subject: Endoscopy
subject: Diagnostic procedure
subject: Complications
subject: Ultrasound-Colour Doppler
subject: MR-Cholangiography
subject: CT-Angiography
subject: Liver
subject: Biliary Tract / Gallbladder
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To assess the role of different imaging modalities for evaluation of recipient status and complications after living donor liver...
title: Gender Parity on Top Boards Is Still a Far-off Goal, and It Is Time for Companies to Take Action: Editorial
Creators: name: Kirsch, Anja
name: Sondergeld, Virginia
name: Thompson, Philipp Alexander
name: Wrohlich, Katharina
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2023
Subjects: subject: D22 Firm Behavior: Empirical Analysis
subject: J16 Economics of Gender; Non-labor Discrimination
subject: J59 Labor-Management Relations, Trade Unions, and Collective Bargaining: Other
subject: J78 Labor Discrimination: Public Policy
subject: L21 Business Objectives of the Firm
subject: L32 Public Enterprises; Public-Private Enterprises
subject: M14 Corporate Culture; Social Responsibility
subject: M51 Personnel Economics: Firm Employment Decisions; Promotions
subject: M12 Personnel Management; Executive Compensation
subject: corporate boards
subject: board composition
subject: boards of directors
subject: board diversity
subject: Europe
subject: women directors
subject: executive directors
subject: gender equality
subject: gender quota
subject: Germany
subject: management
subject: private companies
subject: public companies
subject: supervisory boards
subject: executive boards
subject: CEOs
subject: women
subject: finance industry
subject: financial sector
subject: private and public banks
subject: insurance companies
subject: accountability
subject: corporate governance
subject: CSR
subject: diversity
subject: female directors
subject: leadership positions
subject: managers
subject: non-financial disclosure
subject: non-financial reporting

description: DIW Weekly Report, 13 (2023), 3/4, S. 17-19
Decreto Rectoral 1799: creación del programa de Maestría en Administración Pública en modalidad presencial, enfoque de profundización y modelo GSB
Creators: name: Secretaria General
Publisher: name: Universidad del Rosario
Year: 2023

description: La Universidad del Rosario propicia la generación de nuevas áreas del conocimiento y de nuevos programas académicos que resultan adecuados para la realidad del país y se constituyan en fuente de soluciones y desarrollos innovadores para el avance del crecimiento de la nacion colombiana... En virtud de lo anterior los equipos académicos de la Universidad han diseñado el programa de Maestría en Administración Pública en modalidad presencial, enfoque de profundización y modelo GSB (Graduate School of Bussiness), para que haga parte de la oferta académica de la Esuela de Administración.
title: Research and Development in German Industry: High Intensity, Low Growth
Creators: name: Belitz, Heike
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: O25 Industrial Policy
subject: O30 Technological Change; Research and Development; Intellectual Property Rights: General
subject: C33 Multiple or Simultaneous Equation Models: Models with Panel Data; Longitudinal Data; Spatial Time Series
subject: O50 Economywide Country Studies: General
subject: Research and Development
subject: Manufacturing
subject: International Comparison

description: Research and development (R&D) expenditure in Germany decreased by 5.3 percent overall in 2020 compared to 2019. While the OECD countries actually slightly increased their R&D expenditure on average for the first time in a crisis-ridden year, it declined more sharply in Germany compared to the financial crisis of 2009; German industry, and here the automotive sector, suffered particularly. The decline in R&D personnel, however, was lower. Even before 2020, German industrial research was not growing particularly dynamically in an international comparison. R&D intensity, the ratio of R&D expenditure to output, increased over the years, but still remains beneath the level of the USA and Japan. Initial data for 2021 show while top R&D-spending German companies spent more on R&D than in 2020, growth remained under the average of international competitors. Globally, R&D is growing primarily in sectors that major German companies do not specialize in, such as software and computer services, hardware production, and pharmaceuticals and biotechnology. To secure the wide variety of technologies required to transform to a digitalized and climate-neutral economy, industrial companies are becoming increasingly dependent on knowledge gained internationally, for example through their own research units abroad or through international research collaborations.
description: DIW Weekly Report, 12 (2022), 51/52, S. 329-338
title: Germany Can Increase Its Raw Material Import Security of Supply
Creators: name: Menkhoff, Lukas
name: Zeevaert, Marius
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: F14 Country and Industry Studies of Trade
subject: F52 National Security; Economic Nationalism
subject: Q37 Nonrenewable Resources and Conservation: Issues in International Trade
subject: raw material imports
subject: national security
subject: vulnerability
subject: diversification

description: Over 90 percent of Germany’s raw materials supply is imported and many of these imports come from only a small handful of producer countries. Often, these producer countries tend to be less democratic. In this respect, supply risks are extremely high in some cases, including for mineral raw materials such as rare-earth elements, lithium, and magnesium. To increase raw material import security of supply, various economic policies can be undertaken. European customers could bundle their procurement of raw materials to counter the market power of the few suppliers and more diversification potentials in imports could be used. Raw material storage should also be reconsidered and supplemented by a mandatory minimum reserve. In the long term, raw material imports can be reduced by recycling more and expanding domestic mineral raw material production. Finally, technical innovations should be initiated to replace raw material imports. These measures should be coordinated at a European level as much as possible.
description: DIW Weekly Report, 12 (2022), 49/50, S. 317-325
GLSMs for non-Kahler Geometries
Creators: name: Adams, Allan
name: Dyer, Ethan
name: Lee, Jaehoon
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify a simple mechanism by which H-flux satisfying the modified Bianchi identity arises in garden-variety (0,2) gauged linear sigma models. Taking suitable limits leads to effective gauged linear sigma models with Green-Schwarz anomaly cancellation. We test the quantum-consistency of a class of such effective theories by constructing an off-shell superconformal algebra, providing evidence that these models run to good CFTs in the deep IR.
description: 37 pages, Minor updates for v2
Poincaré-Lelong equation via the Hodge Laplace heat equation
Creators: name: Ni, Lei
name: Tam, Luen-Fai
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper, we develop a method of solving the Poincaré-Lelong equation, mainly via the study of the large time asymptotics of a global solution to the Hodge-Laplace heat equation on $(1, 1)$-forms. The method is effective in proving an optimal result when $M$ has nonnegative bisectional curvature. It also provides an alternate proof of a recent gap theorem of the first author.
title: Artificial intelligence in medical imaging: threat or opportunity? Radiologists again on the wave front of innovation in medicine.
Creators: name: Pesapane, Filippo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Artificial Intelligence
subject: Computer applications
subject: eHealth
subject: Neural networks
subject: Experimental
subject: CAD
subject: Computer Applications-General
subject: Ethics
subject: Socio-economic issues
subject: Education and training
subject: Economics
subject: Workforce

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: ThisE-POS provides basic definitions of terms commonly used when discussing Artificial Intelligence (AI) applications, analyses various aspects related to the integration of AI into the radiological work-flow and provides an overview on the balance...
Clock synchronization using maximal multipartite entanglement
Creators: name: Ren, Changliang
name: Hofmann, Holger F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a multi party quantum clock synchronization protocol that makes optimal use of the maximal multipartite entanglement of GHZ-type states. To realize the protocol, different versions of maximally entangled eigenstates of collective energy are generated by local transformations that distinguish between different groupings of the parties. The maximal sensitivity of the entangled states to time differences between the local clocks can then be accessed if all parties share the results of their local time dependent measurements. The efficiency of the protocol is evaluated in terms of the statistical errors in the estimation of time differences and the performance of the protocol is compared to alternative protocols previously proposed.
title: Double reading in diagnostic radiology: a systematic review
Creators: name: Geijer, Håkan
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Management
subject: CT
subject: Conventional radiography
subject: MR
subject: Audit and standards
subject: Technology assessment
subject: Health policy and practice

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In diagnostic radiology, double reading between radiology specialist peers might increase quality by reducing errors, but a systematic program of double reading is resource consuming, one study [1] reporting 20-25% of working hours needed for double...
title: Potenziale von kleineren Plattformen: Was können wir von ihnen lernen?
Creators: name: Berger, Cathleen
name: Freihse, Charlotte
name: Hofmann, Vincent
name: Kettemann, Matthias C.
name: Mosene, Katharina
Publisher: name: Bertelsmann Stiftung
Year: 2023
Subjects: Social media
Soziale Medien
Demokratie

description: Die wissenschaftliche und öffentliche Auseinandersetzung mit Plattformen konzentriert sich in weiten 
Teilen auf die großen digitalen Plattformen der Branche. Diese stehen deshalb auch im Zentrum von 
Regulierungsbestrebungen (wie z. B. dem Gesetz über Digitale Dienste auf EU-Ebene). Woran es 
aber mangelt, ist eine Debatte über Plattformen abseits von Facebook, TikTok und Co. Denn: ein Blick 
auf die kleineren Plattformen lohnt, da sich auf ihnen nicht nur die Moderation von Inhalten besser 
beobachten lässt, sondern sie auch spannende und erfolgversprechende Experimentierräume für 
demokratische Innovationen in Bezug auf Platform Governance darstellen.

Doch welche Plattformen gelten überhaupt als “klein”? Eine umfassende systematische und vergleichende Erhebung zu kleinen und mittleren Plattformen existiert bisher nicht. Indes lohnt der Blick auf kleinere Plattformen, weil sich bei ihnen neue, kreative, kundennahe und inklusive Ansätze zur Ausgestaltung von Moderationsverantwortung finden. Beispielsweise gibt es unkonventionelle und Community-bezogene Herangehensweisen für die Inhaltsmoderation und die Durchsetzung von Regeln, die vielversprechend für eine faire und demokratischere Balance der Redefreiheit möglichst Vieler und der Interessen der Plattformbetreiber:innen scheinen.
title: Compliance to thyroid ultrasound examination protocols and ACR TI-RADS report formats: a closed-loop audit
Creators: name: Shalaby, Sherif
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Thyroid / Parathyroids
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Structured reporting
subject: Observer performance
subject: Outcomes analysis
subject: Quality assurance

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Assessing compliance to protocol of various thyroid examinations studies against the standards set and revised in our department, as well as adherence to approved reports format. The department now relies on American College of Radiologists Thyroid...
title: Water Resources in Germany: Increasingly Polluted and Regionally Overused
Creators: name: Cullmann, Astrid
name: Sundermann, Greta
name: Wägner, Nicole
name: Hirschhausen, Christian Von
name: Kemfert, Claudia
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: Q15 Land Ownership and Tenure; Land Reform; Land Use; Irrigation; Agriculture and Environment
subject: Q53 Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
subject: Q58 Environmental Economics: Government Policy
subject: Water
subject: resources
subject: pollution
subject: nitrate concentration
subject: water prices

description: The effects of the climate crisis are worsening water shortages, not only in the Global South but also in Europe, for example in the Berlin-Brandenburg region. Due to inadequate pricing of surface and groundwater abstraction and a lack of regulatory instruments, water overuse is occurring in some regions of Germany. Overuse is especially an issue for industry, which has contractually secured high volumes of water withdrawals at very low cost. In addition, there is extensive water pollution as a result of contaminants released into water bodies by households, industry, sewage treatment plants, and agriculture, which further reduces the clean water supply. In particular, nitrate pollution due to intensive fertilization in agriculture is an increasing problem. As a consequence, households and businesses must bear the additional costs, for example due to increasing costs for drinking water treatment. Organic farming can improve water quality; sanitary innovations such as urine-diverting dry toilets (UDDTs) can also contribute. This Weekly Report summarizes current research results and contributes to the German National Water Strategy, a series of measures to be taken by 2030 to address the inter-generational challenges of water management.
description: DIW Weekly Report, 12 (2022), 49/50, S. 307-315
Segal-type algebraic models of n-types
Creators: name: Blanc, David
name: Paoli, Simona
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55S45, 18G50, 18B40

description: For each n\geq 1 we introduce two new Segal-type models of n-types of topological spaces: weakly globular n-fold groupoids, and a lax version of these. We show that any n-type can be represented up to homotopy by such models via an explicit algebraic fundamental n-fold groupoid functor. We compare these models to Tamsamani's weak n-groupoids, and extract from them a model for (k-1)connected n-types
description: Added index of terminology and notation. Minor amendments and added details is some definitions and proofs. Some typos corrected
Boletín 12 - Elecciones al concejo de Bogotá - 2019
Creators: name: Basset, Yann
name: Franco Acosta, Lina María
name: Rodríguez, Sofía
name: Bustos, Juan David
name: Londoño, Sebastián
name: Cifuentes, Angelo
Publisher: name: Universidad del Rosario
Year: 2020

description: La elección de autoridades locales en la capital colombiana nos dejó resultados de interés tanto en el comportamiento del voto a la Alcaldía, como por la “renovación” que tuvo lugar en el Concejo. Una vez más, nos ocupamos de los recientes comicios en Bogotá para analizar las relaciones entre los resultados de los candidatos a Alcalde Mayor y las coaliciones de partidos que los apoyaban ¿Están cohesionados? ¿Se pueden “endosar” los votos de concejales a alcalde? y ¿Hacia dónde se mueven los electores? son las preguntas que se responden a través de este documento.
title: From Historical Responsibility to Carbon Neutrality: A Country Classification
Creators: name: Ansari, Dawud
name: Brahim, Wassim
name: Holz, Franziska
name: Kemfert, Claudia
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: Q54 Climate; Natural Disasters; Global Warming
subject: C38 Multiple or Simultaneous Equation Models: Classification Methods; Cluster Analysis; Factor Models
subject: Climate policy
subject: hierarchical clustering
subject: emission profiles
subject: net zero

description: DIW Weekly Report, 12 (2022), 47/48, S. 296-303
Feeding compact bulges and supermassive black holes with low angular-momentum cosmic gas at high redshift
Creators: name: Dubois, Yohan
name: Pichon, Christophe
name: Haehnelt, Martin
name: Kimm, Taysun
name: Slyz, Adrianne
name: Devriendt, Julien
name: Pogosyan, Dmitry
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use cosmological hydrodynamical simulations to show that a significant fraction of the gas in high redshift rare massive halos falls nearly radially to their very centre on extremely short timescales. This process results in the formation of very compact bulges with specific angular momentum a factor 5-30$smaller than the average angular momentum of the baryons in the whole halo. Such low angular momentum originates both from segregation and effective cancellation when the gas flows to the centre of the halo along well defined cold filamentary streams. These filaments penetrate deep inside the halo and connect to the bulge from multiple rapidly changing directions. Structures falling in along the filaments (satellite galaxies) or formed by gravitational instabilities triggered by the inflow (star clusters) further reduce the angular momentum of the gas in the bulge. Finally, the fraction of gas radially falling to the centre appears to increase with the mass of the halo; we argue that this is most likely due to an enhanced cancellation of angular momentum in rarer halos which are fed by more isotropically distributed cold streams. Such an increasingly efficient funnelling of low-angular momentum gas to the centre of very massive halos at high redshift may account for the rapid pace at which the most massive supermassive black holes grow to reach observed masses around $10^9$M$_\odot$ at an epoch when the Universe is barely 1 Gyr old.
description: 17 pages, 13 figures, MNRAS accepted
Stenopterapion (Stenopterapion) tenue
Creators: name: Ghahari, Hassan
name: Colonnelli, Enzo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Brentidae
Stenopterapion
Stenopterapion tenue

description: Stenopterapion (Stenopterapion) tenue (Kirby, 1808)
Distribution in Iran. Ardabil (Modarres Awal 1986 as Apion tenue), East Azarbaijan (Modarres Awal 1997, 2012 as Apion tenue; Legalov et al. 2010).
General distribution. Algeria, Armenia, Austria, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, France, Georgia, Germany, Great Britain, Greece, Hungary, Iraq, Israel, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Morocco, the Netherlands, Norway, Poland, Romania, Russia, Serbia, Slovakia, Spain, Sweden, Switzerland, Tunisia, Turkey, Ukraine.
Plant associations in Iran. Medicago sativa L., Onobrychis altissima Grossh. (Fabaceae) (Modarres Awal 1986, 1997, 2012).
description: Published as part of Ghahari, Hassan & Colonnelli, Enzo, 2020, An annotated checklist of the Iranian Brentidae (Coleoptera: Curculionoidea), pp. 151-178 in Zootaxa 4759 (2) on page 167, DOI: 10.11646/zootaxa.4759.2.1, http://zenodo.org/record/3737365
A multidimensional continued fraction generalization of Stern's diatomic sequence
Creators: name: Garrity, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Continued fractions are linked to Stern's diatomic sequence 0,1,1,2,1,3,2,3,1,4,... (given by the recursion relation a_2n=a_n and a_{2n+1} = a_n + a_{n+1}, where a_0=0 and a_1=1), which has long been known. Using a particular multidimensional continued fraction algorithm (the Farey algorithm), we will generalize the diatomic sequence to a collection of numbers that quite naturally should be called the triatomic sequence (or a two-dimensional Pascal with memory sequence). As continued fractions and the diatomic sequence can be thought of as coming from systematic subdivisions of the unit interval, this new triatomic sequence will arise by a systematic subdivision of a triangle. We will discuss some of the algebraic properties for the tri-atomic sequence.
description: 31 pages, 8 figures, Change in title and major changes in exposition
title: Duplex ultrasound in evaluation of early renal hemodynamics alteration in type I diabetics
Creators: name: Shalaby, Sherif
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Kidney
subject: Vascular
subject: Ultrasound physics
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Power Doppler
subject: History
subject: Observer performance
subject: Metabolic disorders

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Introduction: Diabetic nephropathy affects about 40% of patients with type I diabetes mellitus. Once fully developed, this complication carries a poor prognosis where relative mortality is almost 40-100 times that of non-diabetics. [1] So, it's...
title: Heat Monitor 2020 and 2021: Heating Energy Consumption down Slightly but Climate Targets Still Not Met
Creators: name: Köveker, Till
name: Kröger, Mats
name: Schütze, Franziska
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: R31 Housing Supply and Markets
subject: Q21 Renewable Resources and Conservation: Demand and Supply (the Commons)
subject: Q40 Energy: General
subject: Heating demand
subject: heating costs
subject: building energy efficiency
subject: residential buildings
subject: gas prices

description: The building sector plays a major role when it comes to meeting climate targets. An analysis by DIW Berlin based on data from energy provider ista SE shows that in the past two years both the temperature-adjusted heat consumption in German multi-apartment buildings and the temperature-adjusted CO2 emissions have dropped slightly. As positive as this decrease is—despite the increase in homeworking due to the coronavirus pandemic—it is nowhere near enough to meet the climate targets. For this to happen, it would be necessary to achieve annual CO2 emission reductions in the order of magnitude of around four percent of emissions in 2020. The soaring heat energy prices resulting from the war in Ukraine may cause a noticeable decrease in energy consumption and CO2 emissions because households will heat less for financial reasons. The government will need to go beyond delivering short-term relief packages and use the momentum for long term measures, making buildings more energy efficient. For energy saving and climate protection reasons, the government needs to accelerate investment in energy-efficient building renovations and in the use of renewable energies in the heating sector.
description: DIW Weekly Report, 12 (2022), 42/43/44, S. 269-279
title: A Higher Retirement Age Has Negative Health Effects
Creators: name: Barschkett, Mara
name: Geyer, Johannes
name: Haan, Peter
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: I10 Health: General
subject: I14 Health and Inequality
subject: Retirement age
subject: Pension reform
subject: Health
subject: Health expenditures

description: In the policy debate, there are regular demands to further increase the retirement age to address the financial challenges for the pension system. However, a prolonged working life impacts a person’s health. Detailed data from the statutory health insurance companies shows that abolishing the “Rente für Frauen” (women’s pension) in 1999, which allowed women to retire at 60, resulted in negative health effects. Women who were affected by the reform and could not retire until age 63 are more likely to have mental illnesses, to be obese, or to suffer from musculoskeletal diseases (arthrosis and other dorsopathies). The results show that increasing the retirement age further should be accompanied by preventive health and education investments. At the same time, further reforms of the disability pension are needed to better safeguard against health risks.
description: DIW Weekly Report, 12 (2022), 41, S. 259-265
Scalar Hair from a Derivative Coupling of a Scalar Field to the Einstein Tensor
Creators: name: Kolyvaris, Theodoros
name: Koutsoumbas, George
name: Papantonopoulos, Eleftherios
name: Siopsis, George
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: We consider a gravitating system of vanishing cosmological constant consisting of an electromagnetic field and a scalar field coupled to the Einstein tensor. A Reissner-Nordström black hole undergoes a second-order phase transition to a hairy black hole of generally anisotropic hair at a certain critical temperature which we compute. The no-hair theorem is evaded due to the coupling between the scalar field and the Einstein tensor. Within a first order perturbative approach we calculate explicitly the properties of a hairy black hole configuration near the critical temperature and show that it is energetically favorable over the corresponding Reissner-Nordström black hole.
description: 24 pages, 13 figures, title changed, improved discussion of the first order perturbative analysis, reference added, published version
title: Nearly 1.1 Million People in Germany Use Food Banks, Single and Separated Parents in Particular at an Above-Average Frequency
Creators: name: Grabka, Markus M.
name: Schupp, Jürgen
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: food banks
subject: SOEP
subject: poverty

description: Food banks are returning to the spotlight as their use increases due to the coronavirus pandemic and the influx of Ukrainian refugees to Germany. The current discussion is focused on whether the food banks can handle the increasing number of users as well as the financial and organizational challenges that come with them. Until now, however, no robust, empirical data on food bank use has been available. Using Socio-Economic Panel (SOEP) data, this Weekly Report presents new findings and analyses on the number of food bank users and their socio-demographic distribution. According to the SOEP data, about 1.1 million people used food banks in the first half of 2020. A large share of users are women, people with a migration background, divorced or separated people, and the unemployed; additionally, one fourth of those who benefit from food banks are children. Food bank users also tend to be in poor health. As expected, they also have a below average net household income and accordingly, over two thirds of them are at risk of poverty. The structural causes of poverty must be addressed to ensure that food banks do not reach their limit. Increasing the standard rate for welfare benefits and providing targeted support measures for job seekers could lessen dependency on food banks. Food banks should also be professionalized, as is currently under discussion, and increasingly take on a pilot function for other support measures in the social security system.
description: DIW Weekly Report, 12 (2022), 39, S. 239-244
Stenopterapion (Stenopterapion) meliloti
Creators: name: Ghahari, Hassan
name: Colonnelli, Enzo
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Brentidae
Stenopterapion
Stenopterapion meliloti

description: Stenopterapion (Stenopterapion) meliloti (Kirby, 1808)
Distribution in Iran. Mazandaran, Tehran (Hoffmann 1968 as Apion meliloti), Iran (no exact locality cited) (Ter- Minassian 1972; Legalov et al. 2010).
General distribution. Algeria, Austria, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Iran, Italy, Kazakhstan, Latvia, Lithuania, Luxembourg, Mongolia, the Netherlands, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Spain, Sweden, Switzerland, Syria, Ukraine, Uzbekistan, and introduced in North America.
Plant associations in Iran. Astragalus sp. (Fabaceae) (Hoffmann 1968).
description: Published as part of Ghahari, Hassan & Colonnelli, Enzo, 2020, An annotated checklist of the Iranian Brentidae (Coleoptera: Curculionoidea), pp. 151-178 in Zootaxa 4759 (2) on page 167, DOI: 10.11646/zootaxa.4759.2.1, http://zenodo.org/record/3737365