cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterisation of small size MRPC prototypes for fast timing and high rates
Creators: name: Y.W.Baek
name: J.S. Kim
Publisher: name: Zenodo
Year: 2024
Subjects: WP7

description: The Multigap Resistive Plate Chamber (MRPC) is a gaseous detector that can offer excellent time performance and its cost to cover  large areas is low. Most RPC-type detectors are currently using C2F4H2-based gas mixtures that have very high Global Warming Potential (GWP). Another interesting feature of MRPCs is the high-rate capability.  We built a double-stack MRPC using low-resistive glass with a bulk resistivity of 109 W·cm and tested it at the T10 beam facility at CERN. We also tested it with both the standard and a more ecological gas mixture.
Kibble-Zurek Mechanism for Nonequilibrium Phase Transitions in Driven Systems with Quenched Disorder
Creators: name: Reichhardt, C. J. O.
name: del Campo, A.
name: Reichhardt, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We numerically study the density of topological defects for a two-dimensional assembly of particles driven over quenched disorder as a function of quench rate through the nonequilibrium phase transition from a plastic disordered flowing state to a moving anisotropic crystal. A dynamical ordering transition of this type occurs for vortices in type-II superconductors, colloids, and other particle-like systems in the presence of random disorder. We find that on the ordered side of the transition, the density of topological defects $ρ_d$ scales as a power law, $ρ_d \propto 1/t_{q}^β$, where $t_{q}$ is the time duration of the quench across the transition. This type of scaling is predicted in the Kibble-Zurek mechanism for varied quench rates across a continuous phase transition. We show that scaling with the same exponent holds for varied strengths of quenched disorder. The value of the exponent can be connected to the directed percolation universality class. Our results suggest that the Kibble-Zurek mechanism can be applied to general nonequilibrium phase transitions.
description: 7 pages, 7 figures
title: Entwicklung der Frühen Hilfen in Deutschland. Ergebnisse der NZFH-Kommunalbefragungen im Rahmen der Dokumentation und Evaluation der Bundesinitiative Frühe Hilfen (2013–2017). Forschungsbericht.
Creators: name: Sann, Alexandra
name: Küster, Ernst-Uwe
name: Pabst, Christopher
name: Peterle, Christopher
name: Nationales Zentrum Frühe Hilfen (NZFH) (Hrsg.)
Publisher: name: BZGA - Federal Centre for Health Education
Year: 2021

description: Materialien zu Frühen Hilfen, 14
title: Turkey's presidential system after two and a half years
title: an overview of institutions and politics
titleType: Subtitle
Creators: name: Adar, Sinem
name: Seufert, Günter
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP Research Paper, 2/2021
Driven Superconducting Vortex Dynamics in Systems with Two-Fold Anisotropy in the Presence of Pinning
Creators: name: Roe, E.
name: Eskildsen, M. R.
name: Reichhardt, C.
name: Reichhardt, C. J. O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We examine the dynamics of superconducting vortices with two-fold anisotropic interaction potentials driven over random pinning and compare the behavior under drives applied parallel and perpendicular to the anisotropy direction. The number of topological defects reaches a maximum near depinning and then drops with increasing driving force as the vortices form one-dimensional chains. This coincides with a transition from a pinned nematic to a moving smectic aligned with the soft direction of the anisotropy. The system is generally more ordered when the drive is applied along the soft direction of the anisotropy, while for driving along the hard direction, there is a critical value of the anisotropy above which the system remains aligned with the soft direction. We also observe hysteresis in the dynamics, with one-dimensional aligned chains persisting during a decreasing drive sweep to drives below the threshold for chain formation during the increasing drive sweep. More anisotropic systems have a greater amount of structural disorder in the moving state. For lower anisotropy, the system forms a moving smectic-A state, while at higher anisotropy, a moving nematic state appears instead.
description: 13 pages, 11 figures
Using Active Matter to Introduce Spatial Heterogeneity to the Susceptible-Infected-Recovered Model of Epidemic Spreading
Creators: name: Forgacs, P.
name: Libal, A.
name: Reichhardt, C.
name: Hengartner, N.
name: Reichhardt, C. J. O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The widely used susceptible-infected-recovered (S-I-R) epidemic model assumes a uniform, well-mixed population, and incorporation of spatial heterogeneities remains a major challenge. Understanding failures of the mixing assumption is important for designing effective disease mitigation approaches. We combine a run-and-tumble self-propelled active matter system with an S-I-R model to capture the effects of spatial disorder. Working in the motility-induced phase separation regime both with and without quenched disorder, we find two epidemic regimes. For low transmissibility, quenched disorder lowers the frequency of epidemics and increases their average duration. For high transmissibility, the epidemic spreads as a front and the epidemic curves are less sensitive to quenched disorder; however, within this regime it is possible for quenched disorder to enhance the contagion by creating regions of higher particle densities. We discuss how this system could be realized using artificial swimmers with mobile optical traps operated on a feedback loop.
description: 9 pages, 8 figures
Future Directions for Active Matter on Ordered Substrates
Creators: name: Reichhardt, C.
name: Libal, A.
name: Reichhardt, C. J. O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Active matter is a term encompassing particle-based assemblies with some form of self-propulsion, including certain biological systems as well as synthetic systems such as artificial colloidal swimmers, all of which can exhibit a remarkable variety of new kinds of nonequilibrium phenomena. A wealth of non-active condensed matter systems can be described in terms of a collection of particles coupled to periodic substrates, leading to the emergence of commensurate-incommensurate effects, Mott phases, tribology effects, and pattern formation. It is natural to ask how such phases are modified when the system is active. Here we provide an overview and future directions for studying individual and collectively interacting active matter particles coupled to periodic substrates, where new types of commensuration effects, directional locking, and active phases can occur. Further directions for exploration include locking effects, the realization of active solitons or active defects in incommensurate phases, active Mott phases, active artificial spin ice, active doping transitions, active floating phases, active surface physics, active matter time crystals, and active tribology.
description: 7 pages, 6 figures
title: Studieren unter Corona-Bedingungen: Vulnerable Studierendengruppen im Fokus
title: Zum Stressempfinden vulnerabler Studierendengruppen
titleType: Subtitle
Creators: name: Zimmer, Lena Maria
name: Lörz, Markus
name: Marczuk, Anna
Publisher: name: German Centre for Higher Education Research and Science Studies (DZHW)
Year: 2021

description: DZHW Brief, 02/2021
Amphicoryna scalaris
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Nodosariidae
Amphicoryna
Amphicoryna scalaris

description: Amphicoryna scalaris (Batsch, 1791)
Figure 2.1-2
1791 Nautilus (Ortoceras) scalaris Batsch, p. 1, 4, pl. 2, fig. 4a-b.
2001 Amphicoryna scalaris (Batsch); Szarek, p. 201, pl. 14, fig. 18.
2003 Amphicoryna scalaris (Batsch); Murray, p. 17, fig. 5.1.
2010 Amphicoryna scalaris (Batsch); Margreth, p. 153, pl. 13, figs. 2-3.
2012 Amphicoryna scalaris (Batsch); Milker and Schmiedl, p. 73, fig. 18.22-25.
2012 Amphicoryna scalaris (Batsch); Debenay, p. 162.
Description. Test elongate, wall calcareous, surface ornamented with many striae and basal apiculate spine; chambers globular, chamber arrangement uniserial; sutures depressed; aperture crescent-shaped or radiate at the end of a long neck, rimmed, enveloped by concentric ridges.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 5, DOI: 10.26879/811, http://zenodo.org/record/10961656
Amphicoryna scalaris
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Nodosariidae
Amphicoryna
Amphicoryna scalaris

description: Amphicoryna scalaris (Batsch, 1791) macrospheric form
Figure 2.3
Description. In the macrospheric form, globular final chambers rapidly increase in size.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 5, DOI: 10.26879/811, http://zenodo.org/record/10961656
No circular birefringence in a chiral medium: an analysis of single-mode refraction
Creators: name: Hu, Zhi-Juan
name: Li, Chun-Fang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: It is generally believed that the right-handed circularly polarized (RCP) and left-handed circularly polarized (LCP) waves in an isotropic chiral medium propagate at different velocities, known as circular birefringence. Here we show that this is not the case. After obtaining the refraction and reflection coefficients of any elliptically polarized wave at the surface of a chiral medium, we derive the conditions for single-mode refraction. By means of the process of single-mode refraction, we demonstrate that both the refracted RCP and the refracted LCP waves at normal incidence can be expressed as a coherent superposition of a pair of orthogonal linearly polarized waves that are rotated simultaneously. As a result, they must propagate at the same velocity as the linearly polarized waves. A physical interpretation is also given in detail. In particular, we show that the state of polarization of any elliptically polarized wave in a chiral medium is rotated with propagation. Such a rotation amounts to the rotation of polarization bases without involving the change of the Jones vector. The rotation of the RCP and LCP waves, as special cases of elliptically polarized waves, results in two opposite phases as if they propagated at different phase velocities with their polarization states transmitted unchanged.
description: 18 pages, 1 figure
Dynamic Phases and Reentrant Hall Effect for Vortices and Skyrmions on Periodic Pinning Arrays
Creators: name: Reichhardt, C. J. O.
name: Reichhardt, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the motion of superconducting vortices and skyrmions on a square substrate near the first commensurate matching field. Slightly above commensuration, a series of dynamic phases appear including interstitial flow, and there is a transition from fluid flow to soliton flow that generates negative differential conductivity. Slightly below commensuration, vacancy depinning occurs. The dynamic phase transitions produce features in the velocity-force curves, differential mobility, and velocity fluctuations. When a Magnus force is also present, as in certain superconducting vortex or skyrmion systems, there is an expansion of the fluid state, and at lower drives there is a finite Hall angle in the fluid phase but a vanishing Hall angle in the soliton phase, giving rise to a reentrant Hall effect. We also find a regime where the Hall motion of the particles exhibits the same dynamic phases, including soliton motion at a finite angle that produces negative differential conductivity in the Hall response but not in the longitudinal response. Our results suggest that vortices driven over periodic pinning may be an ideal system for determining if a vortex Hall effect is occurring and would also be relevant for skyrmions at smaller Magnus forces.
description: 19 pages, 19 postscript figures
title: Deadlock in Georgia
title: political crisis and regional changes need an EU response
titleType: Subtitle
Creators: name: Smolnik, Franziska
name: Sarjveladze, Mikheil
name: Tadumadze, Giorgi
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP Comment, 26/2021
title: Mutations in ALK signaling pathways conferring resistance to ALK inhibitor treatment lead to collateral vulnerabilities in neuroblastoma cells
Creators: name: Berlak, Mareike
name: Tucker, Elizabeth
name: Dorel, Mathurin
name: Winkler, Annika
name: McGearey, Aleixandria
name: Rodriguez-Fos, Elias
name: Da Costa, Barbara Martins
name: Barker, Karen
name: Fyle, Elicia
name: Calton, Elizabeth
name: Eising, Selma
name: Ober, Kim
name: Hughes, Deborah
name: Koutroumanidou, Eleni
name: Carter, Paul
name: Stankunaite, Reda
name: Proszek, Paula
name: Jain, Neha
name: Rosswog, Carolina
name: Dorado-Garcia, Heathcliff
name: Molenaar, Jan Jasper
name: Hubank, Mike
name: Barone, Giuseppe
name: Anderson, John
name: Lang, Peter
name: Deubzer, Hedwig Elisabeth
name: Künkele, Annette
name: Fischer, Matthias
name: Eggert, Angelika
name: Kloft, Charlotte
name: Henssen, Anton George
name: Boettcher, Michael
name: Hertwig, Falk
name: Blüthgen, Nils
name: Chesler, Louis
name: Schulte, Johannes Hubertus
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: Neuroblastoma
subject: CRISPR screening
subject: ALK
subject: Resistance
subject: NF1
subject: NRAS
subject: Trametinib
subject: Lorlatinib
subject: Ceritinib
subject: Collateral sensitivity
subject: 610 Medizin und Gesundheit

description: Background Development of resistance to targeted therapies has tempered initial optimism that precision oncology would improve poor outcomes for cancer patients. Resistance mechanisms, however, can also confer new resistance-specific vulnerabilities, termed collateral sensitivities. Here we investigated anaplastic lymphoma kinase (ALK) inhibitor resistance in neuroblastoma, a childhood cancer frequently affected by activating ALK alterations. Methods Genome-wide forward genetic CRISPR-Cas9 based screens were performed to identify genes associated with ALK inhibitor resistance in neuroblastoma cell lines. Furthermore, the neuroblastoma cell line NBLW-R was rendered resistant by continuous exposure to ALK inhibitors. Genes identified to be associated with ALK inhibitor resistance were further investigated by generating suitable cell line models. In addition, tumor and liquid biopsy samples of four patients with ALK-mutated neuroblastomas before ALK inhibitor treatment and during tumor progression under treatment were genomically profiled. Results Both genome-wide CRISPR-Cas9-based screens and preclinical spontaneous ALKi resistance models identified NF1 loss and activating NRASQ61K mutations to confer resistance to chemically diverse ALKi. Moreover, human neuroblastomas recurrently developed de novo loss of NF1 and activating RAS mutations after ALKi treatment, leading to therapy resistance. Pathway-specific perturbations confirmed that NF1 loss and activating RAS mutations lead to RAS-MAPK signaling even in the presence of ALKi. Intriguingly, NF1 loss rendered neuroblastoma cells hypersensitive to MEK inhibition. Conclusions Our results provide a clinically relevant mechanistic model of ALKi resistance in neuroblastoma and highlight new clinically actionable collateral sensitivities in resistant cells.
Lenticulina cultrata
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Globothalamea
Rotaliida
Nummulitidae
Lenticulina
Lenticulina cultrata

description: Lenticulina cultrata (de Montfort, 1808)
Figure 2.4
1808 Robulus cultratus de Montfort, p. 214, 540 genre.
2012 Lenticulina cultrata (de Monfort); Debenay, p. 223.
2015 Lenticulina cultrata (de Montfort); Hanagata and Nobuhara, p. 29, fig. 11.1-2.
Description. Test large, biconvex, wall finely perforate, surface smooth, no umbo; chambers many; periphery with a well-developed keel, sutures strongly curved; aperture terminal, radiate with many slits coalescing at the end of final chamber, a slit on the apertural side.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 5, DOI: 10.26879/811, http://zenodo.org/record/10961656
Global Existence for Nonlocal Quasilinear Diffusion Systems in Non-Isotropic Non-Divergence Form
Creators: name: Lo, Catharine W. K.
name: Rodrigues, José Francisco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Consider the quasilinear diffusion problem \[\begin{cases}\mathbf{u}'+Π(t,x,\mathbf{u},Σ\mathbf{u})\mathbb{A}\mathbf{u}=\mathbf{f}(t,x,\mathbf{u},Σ\mathbf{u})&\text{ in }]0,T[\timesΩ,\\\mathbf{u}=\mathbf{0}&\text{ in }]0,T[\timesΩ^c,\\\mathbf{u}(0,\cdot)=\mathbf{u}_0(\cdot)&\text{ in }Ω\end{cases}\] for an open set $Ω\subset\mathbb{R}^n$, $\mathbf{u}_0\in \mathbf{H}^s_0(Ω):=[H^s_0(Ω)]^m$ and any $T\in]0,\infty[$, where $Σ\mathbf{u}\in \mathbb{R}^q$ for $0
title: Politbarometer-Bibliographie: 4. Fassung, Stand: Februar 2021
Creators: name: Eder, Christina
name: Schulze Brock, Paula
name: Rappenhöner, Andrea
name: Jakowatz, Stefan
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 1080408 Public Opinion Research
subject: 10504 Political Process, Elections, Political Sociology, Political Culture
subject: Federal Republic of Germany
subject: opinion research
subject: public opinion
subject: political attitude
subject: survey

description: GESIS Papers, 2021/05, 81 S.
Lenticulina orbicularis
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Globothalamea
Rotaliida
Nummulitidae
Lenticulina
Lenticulina orbicularis

description: Lenticulina orbicularis (d’Orbigny, 1826)
Figure 2.6-7
1826 Robulina orbicularis d’Orbigny, p. 288, pl. 15, figs. 8-9.
2010 Lenticulina orbicularis (d’Orbigny); Margreth, p. 150, pl. 12, fig. 8a-b.
2012 Lenticulina orbicularis (d’Orbigny); Debenay, p. 224.
2012 Lenticulina orbicularis (d’Orbigny); Milker and Schmiedl, p. 73, figs. 18.19-20.
Description. Test rounded, strongly biconvex, peripheral view lenticular, wall finely perforate, surface smooth, umbo prominent; chambers many, narrow; periphery with a thick keel, sutures strongly curved; aperture terminal, radiate, with a slit on the apertural side.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 9, DOI: 10.26879/811, http://zenodo.org/record/10961656
title: ONBound-Harmonization User Guide (Stata/SPSS), Version 1.1
Creators: name: May, Antonia
name: Werhan, Katharina
name: Bechert, Insa
name: Quandt, Markus
name: Schnabel, Annette
name: Behrens, Kathrin
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10105 Methods and Techniques of Data Collection and Data Analysis, Statistical Methods, Computer Methods
subject: data capture
subject: data preparation
subject: harmonization
subject: data documentation
subject: coding
subject: statistical analysis
subject: identity
subject: religious factors
subject: national identity
subject: comparative research

description: This document provides information on how to work with the data of the 'ONBound - Old and New Boundaries: National Identities and Religion' project. It outlines the project's starting point, the data harmonization procedures, the harmonization repository, the ONBound Harmonization Wizard, and most importantly, guides through the steps and procedures needed to compile a customized ONBound dataset. Chapter One of this user guide informs about citations for ONBound data and metadata. Chapter Two gives an overview of the available variables and the original datasets that were included. It also introduces our harmonization strategies. Chapter Three introduces the ONBound Harmonization Wizard. Finally, chapter four provides a step-by-step guide for the application of the ONBound harmonization routines.
description: GESIS Papers, 2021/04, 42 S.
Lenticulina suborbicularis Parr 1950
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Globothalamea
Rotaliida
Nummulitidae
Lenticulina
Lenticulina suborbicularis

description: Lenticulina suborbicularis Parr, 1950
Figure 2.8-9
1950 Lenticulina (Robulus) suborbicularis Parr, p. 321, pl. 11, figs. 5-6.
2012 Lenticulina suborbicularis Parr; Debenay, p. 224.
Description. Test subcircular, biconvex, wall finely perforate, surface smooth, umbo broad and raised; chambers many; periphery with a thick keel, sutures strongly curved; aperture terminal, radiate, with a slit on the apertural face.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 9, DOI: 10.26879/811, http://zenodo.org/record/10961656
Optimization-Based Exploration of the Feasible Power Flow Space for Rapid Data Collection
Creators: name: Nadal, Ignasi Ventura
name: Chevalier, Samuel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper provides a systematic investigation into the various nonlinear objective functions which can be used to explore the feasible space associated with the optimal power flow problem. A total of 40 nonlinear objective functions are tested, and their results are compared to the data generated by a novel exhaustive rejection sampling routine. The Hausdorff distance, which is a min-max set dissimilarity metric, is then used to assess how well each nonlinear objective function performed (i.e., how well the tested objective functions were able to explore the non-convex power flow space). Exhaustive test results were collected from five PGLib test-cases and systematically analyzed.
title: Autonome Waffensysteme und menschliche Kontrolle
title: Konsens über das Konzept, Unklarheit über die Operationalisierung
titleType: Subtitle
Creators: name: Dahlmann, Anja
name: Hoffberger-Pippan, Elisabeth
name: Wachs, Lydia
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP-Aktuell, 31/2021
title: The Russian military escalation around Ukraine's Donbas
title: risks and scenarios for a revised EU policy
titleType: Subtitle
Creators: name: Minzarari, Dumitru
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP Comment, 27/2021
Directional Locking in a 2D Yukawa Solid Modulated by a 2D Periodic Substrate
Creators: name: Zhu, Wenqi
name: Reichhardt, C.
name: Reichhardt, C. J. O.
name: Feng, Yan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Directional depinning dynamics of a 2D dusty plasma solid modulated by a 2D square periodic substrate are investigated using Langevin dynamical simulations. We observe prominent directional locking effects when the direction of the external driving force is varied relative to the underlying square substrate. These locking steps appear when the direction of the driving force is close to the symmetry direction of the substrate, corresponding to the different dynamical flow patterns and the structures. In the conditions between the adjacent locking steps, moving ordered states are observed. Although the discontinuous transitions often occur between the locking steps and the non-locking portion, the continuous transitions are also found around the locking step associated with the disordered plastic flow close to its termini. Our results show that directional locking also occurs for underdamped systems, which could be tested experimentally in dusty plasmas modulated by 2D substrates.
description: 10 pages, 5 postscript figures
Marginulinopsis costata
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Vaginulinida
Vaginulinidae
Marginulinopsis
Marginulinopsis costata

description: Marginulinopsis costata (Batsch, 1791)
Figure 2.10
1791 Nautilus (Orthoceras) costatus Batsch, p. 2, pl. 1, fig. 1.
2012 Marginulina costata (Batsch); Milker and Schmiedl, p. 73, fig. 18.26.
Description. Test elongate, cross section subcylindrical or oval, wall calcareous, surface ornamented with long striae; earlier chambers compact, final chambers inflated and subspherical, closely coiled initially, later uniserially arranged; sutures indistinct in the earlier chambers, straight and depressed in the final chambers; aperture terminal at the end of a short neck.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on pages 9-11, DOI: 10.26879/811, http://zenodo.org/record/10961656
title: Digitales selbstgesteuertes Lernen Erwerbstätiger in der Corona-Krise Analysen auf Basis der NEPS-Startkohorte 6
Creators: name: Ehlert, Martin
name: Kleinert, Corinna
name: Vicari, Basha
name: Zoch, Gundula
Publisher: name: LIfBi Leibniz Institute for Educational Trajectories
Year: 2021
Subjects: subject: COVID-19 Pandemie
subject: berufliche Weiterbildung
subject: informelles Lernen
subject: Erwerbssituation
subject: NEPS-C

description: Die COVID-19-Pandemie hat den Zugang zu Lerngelegenheiten in Form von Präsenzveranstaltungen – der häufigsten Form des Lernens im Erwachsenenalter – unmöglich gemacht. Viele Betriebe haben auf Grund der wirtschaftlichen Unsicherheit ihre Weiterbildungsinvestitionen heruntergefahren. Eine Möglichkeit, diese Lücke zu füllen, ist das Lernen über das Internet. Lernangebote über Apps oder Videos aus dem Netz sind überall verfügbar und können zeitlich flexibelgenutzt werden. Doch wurden diese Angebote in den ersten Monaten der Krise verstärkt genutzt, und wenn ja, von welchen Gruppen? Mit den regulären Daten des NEPS-SC6 Panels sowie einer Zusatzerhebung im Mai und Juni 2020 können wir zeigen, dass die berufliche Nutzung von digitalen Lernangeboten während der ersten Monate der Pandemie zugenommen hat. Gleichzeitig verstärken sich aber Bildungsungleichheiten in der Nutzung. Von der Ausweitung von digitalen Lernangeboten scheinen eher Hochgebildete zu profitieren und nicht, wie häufig angenommen, „bildungsferne“ Gruppen
description: LIfBi Working Papers, No. 94 (2021)
title: Measuring Educational Trajectories of Adolescent Refugees in a Longitudinal Perspective
Creators: name: Becker, Regina
name: Weber, Florian
name: Bentata, Pascal
Publisher: name: LIfBi Leibniz Institute for Educational Trajectories
Year: 2021
Subjects: subject: refugees
subject: secondary education
subject: Germany
subject: survey methodology

description: Since 2015, we have observed a large number of refugees immigrate into Germany, a significant proportion of whom are under the age of eighteen. As refugees’ successful incorporation into German society is strongly influenced by their access to the German educational system, scrutinizing the young refugees’ educational trajectories becomes crucial. Measuring the educational trajectories of refugee adolescents is challenging due to the complexity of the German educational system and refugees’ unfamiliarity with this system, particularly if they arrived very recently in Germany. The longitudinal study “ReGES — Refugees in the German Educational System” aims at collecting data about young refugees’ educational paths in Germany. The aim of this paper is to describe how these data are collected, the challenges we faced in collecting them, and the solutions we applied to overcome these challenges.
description: LIfBi Working Papers, No. 95 (2021)
Pattern Formation and Flocking for Particles Near the Jamming Transition on Resource Gradient Substrates
Creators: name: Varga, L.
name: Libal, A.
name: Reichhardt, C.
name: Reichhardt, C. J. O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We numerically examine a bidisperse system of active and passive particles coupled to a resource substrate. The active particles deplete the resource at a fixed rate and move toward regions with higher resources, while all of the particles interact sterically with each other. We show that at high densities, this system exhibits a rich variety of pattern forming phases along with directed motion or flocking as a function of the relative rates of resource absorption and consumption as well as the active to passive particle ratio. These include partial phase separation into rivers of active particles flowing through passive clusters, strongly phase separated states where the active particles induce crystallization of the passive particles, mixed jammed states, and fluctuating mixed fluid phases. For higher resource recovery rates, we demonstrate that the active particles can undergo motility induced phase separation, while at high densities, there can be a coherent flock containing only active particles or a solid mixture of active and passive particles. The directed flocking motion typically shows a transient in which the flow switches among different directions before settling into one direction, and there is a critical density below which flocking does not occur. We map out the different phases as function of system density, resource absorption and recovery rates,and the ratio of active to passive particles.
description: 16 pages, 22 figures
title: Die Zukunft von Fidesz jenseits der EVP
title: Folgen des Austritts für das europäische Parteiengefüge und für Ungarns Verhältnis zu Deutschland
titleType: Subtitle
Creators: name: Lang, Kai-Olaf
name: Von Ondarza, Nicolai
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP-Aktuell, 32/2021
title: The impact of the Digital Service Act (DSA) and Digital Markets Act (DMA) on European integration policy
title: digital market regulation as one of five major digital policy projects of the EU
titleType: Subtitle
Creators: name: Bendiek, Annegret
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: Working Paper / Research Division EU/Europe, 2/2021
1921: La primera manifestación sufragista en España
Creators: name: Gómez Fernández, Eva
Publisher: name: Zenodo
Year: 2024

description: Las siguientes páginas analizarán la primera manifestación sufragista española que tuvo lugar en Madrid en 1921 como consecuencia de la movilización social que llevaron a cabo los militantes feministas de la asociación feminista de la Unión de Mujeres Españolas (UME).
title: Grenzen der Einigung in Libyen
title: die Bildung der Einheitsregierung verbirgt alte und neue Gräben
titleType: Subtitle
Creators: name: Lacher, Wolfram
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP-Aktuell, 34/2021
Runtime Analysis for Permutation-based Evolutionary Algorithms
Creators: name: Doerr, Benjamin
name: Ghannane, Yassine
name: Brahim, Marouane Ibn
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: While the theoretical analysis of evolutionary algorithms (EAs) has made significant progress for pseudo-Boolean optimization problems in the last 25 years, only sporadic theoretical results exist on how EAs solve permutation-based problems.
 To overcome the lack of permutation-based benchmark problems, we propose a general way to transfer the classic pseudo-Boolean benchmarks into benchmarks defined on sets of permutations. We then conduct a rigorous runtime analysis of the permutation-based $(1+1)$ EA proposed by Scharnow, Tinnefeld, and Wegener (2004) on the analogues of the LeadingOnes and Jump benchmarks. The latter shows that, different from bit-strings, it is not only the Hamming distance that determines how difficult it is to mutate a permutation $σ$ into another one $τ$, but also the precise cycle structure of $στ^{-1}$. For this reason, we also regard the more symmetric scramble mutation operator. We observe that it not only leads to simpler proofs, but also reduces the runtime on jump functions with odd jump size by a factor of $Θ(n)$. Finally, we show that a heavy-tailed version of the scramble operator, as in the bit-string case, leads to a speed-up of order $m^{Θ(m)}$ on jump functions with jump size $m$. A short empirical analysis confirms these findings, but also reveals that small implementation details like the rate of void mutations can make an important difference.
description: Journal version of our paper at GECCO 2022, appeared in Algorithmica. 52 pages. arXiv admin note: substantial text overlap with arXiv:2204.07637
Topology Optimization of 3D Photonic Bandgap Crystals
Creators: name: Aage, Niels
Publisher: name: Zenodo
Year: 2007
Subjects: Topology Optimization
Photonic Crystal
Zipper Method

description: Master thesis by Niels Aage on the design of 3d photonic crystals using topology optimization, Technical University of Denmark, Department of Mechanical Engineering, Solid Mechanics, December 2007.

Thesis includes a description of the so-called zipper method for robust design of bandgap materials.

Supervisors (DTU):Allan Roulund Gersborg & Ole Sigmund
Multilevel Geometric Optimization for Regularised Constrained Linear Inverse Problems
Creators: name: Müller, Sebastian
name: Petra, Stefania
name: Zisler, Matthias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65K10, 49J40, 49M37, 68U10, 74P20, 90C06

description: We present a geometric multilevel optimization approach that smoothly incorporates box constraints. Given a box constrained optimization problem, we consider a hierarchy of models with varying discretization levels. Finer models are accurate but expensive to compute, while coarser models are less accurate but cheaper to compute. When working at the fine level, multilevel optimisation computes the search direction based on a coarser model which speeds up updates at the fine level. Moreover, exploiting geometry induced by the hierarchy the feasibility of the updates is preserved. In particular, our approach extends classical components of multigrid methods like restriction and prolongation to the Riemannian structure of our constraints.
description: 25 pages, 6 figures
Pyramidulina catesbyi
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Nodosariidae
Pyramidulina
Pyramidulina catesbyi

description: Pyramidulina catesbyi (d’Orbigny, 1839a)
Figure 2.12
1839a Nodosaria catesbyi d’Orbigny, p. 16, pl. 1, figs. 8-10.
2012 Pyramidulina catesbyi (d’Orbigny); Debenay, p. 168.
2012 Pyramidulina catesbyi (d’Orbigny); Milker and Schmiedl, p. 72, fig. 18.15-16.
Description. Test elongate, cross section subspherical or ovate, wall calcareous, finely perforate, surface ornamented with long striae and a prominent basal spine; chambers two, initial chamber globular, second chamber nearly pyriform, chamber arrangement uniserial; suture distinct, depressed; aperture terminal, radiate at the end of a well-developed neck.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 11, DOI: 10.26879/811, http://zenodo.org/record/10961656
title: PIAAC Bibliography - 2008-2020
Creators: name: Maehler, Débora B.
name: Jakowatz, Stefan
name: Konradt, Ingo
Publisher: name: SSOAR -   GESIS Leibniz Institute for the Social Sciences
Year: 2021
Subjects: subject: 10199 Other Fields of Social Sciences
subject: competence
subject: adulthood
subject: international comparison
subject: data
subject: publication
subject: bibliography

description: GESIS Papers, 2021/06, 369 S.
Pseudolingulina bradii Silvestri 1903
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Nodosariidae
Pseudolingulina
Pseudolingulina bradii

description: Pseudolingulina bradii Silvestri, 1903
Figure 2.13-14
1903 Lingulonodosaria bradii Silvestri, p. 48.
2013 Pseudolingulina bradii Silvestri; Jones, p. 37, pl. 2, fig. 1.
Description. Test elongate, cross section circular, wall calcareous, surface smooth, no ornamentation; chambers subglobular, slightly overlapping, initial chamber tapering, gradually increasing in size as added, arranged linearly; sutures distinct and depressed; aperture terminal, radiate.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 11, DOI: 10.26879/811, http://zenodo.org/record/10961656
Superlubric-pinned transition of a two-dimensional solid dusty plasma under a periodic triangular substrate
Creators: name: Huang, Y.
name: Reichhardt, C.
name: Reichhardt, C. J. O.
name: Feng, Yan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The superlubric-pinned transition in the depinning dynamics of a two-dimensional (2D) solid dusty plasma modulated by 2D triangular periodic substrates is investigated using Langevin dynamical simulations. When the lattice structure of the 2D solid dusty plasma perfectly matches the triangular substrate, two distinctive pinned and moving ordered states are observed, as the external uniform driving force gradually increases from zero. When there is a mismatch between the lattice structure and the triangular substrate, however, on shallow substrates, it is discovered that all of the particles can slide freely on the substrate even when the applied driving force is tiny. This is a typical example of superlubricity, which is caused by the competition between the substrate-particle and particle-particle interactions. If the substrate depth increases further, as the driving force increases from zero, there are three dynamical states consisting of the pinned, the disordered plastic flow, and the moving ordered. In an underdense system, where there are fewer particles than potential well minima, it is found that the occurrence of the three different dynamical states is controlled by the depth of the substrate, which is quantitatively characterized using the average mobility.
description: 10 pages, 5 postscript figures
title: Libya's flawed unity government
title: a semblance of compromise obscures old and new rifts
titleType: Subtitle
Creators: name: Lacher, Wolfram
name: Stiftung Wissenschaft Und Politik
Publisher: name: Stiftung Wissenschaft und Politik (SWP), German Institute for International and Security Affairs
Year: 2021

description: SWP Comment, 29/2021
Non-Gaussian tails without stochastic inflation
Creators: name: Ballesteros, Guillermo
name: Konstandin, Thomas
name: Pérez Rodríguez, Alejandro
name: Pierre, Mathias
name: Rey, Julián
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2024
Subjects: inflation, stochastic
curvature, perturbation
non-Gaussianity
phase space
density

description: We show, both analytically and numerically, that non-Gaussian tails in the probability density function of curvature perturbations arise in ultra-slow-roll inflation from the $\delta N$ formalism, without invoking stochastic inflation. Previously reported discrepancies between both approaches are a consequence of not correctly accounting for momentum perturbations. Once they are taken into account, both approaches agree to an excellent degree. The shape of the tail depends strongly on the phase space of inflation.
title: Murky trade waters: regional tariff commitments and non-tariff measures in Africa
Creators: name: Stender, Frederik
name: Vogel, Tim
Publisher: name: German Development Institute / Deutsches Institut für Entwicklungspolitik (DIE)
publisherIdentifier: https://ror.org/01t3zke88
publisherIdentifierScheme: ROR
Year: 2021
Subjects: subject: economic integration
subject: import regulation
subject: non-tariff measures
subject: tariff liberalisation
subject: tariff overhang
subject: trade policy substitution

description: In several African regions, economic integration has successfully reduced tariff protection by freezing the opportunity to raise applied tariffs against fellow integration partners above those promised. In this paper, we examine whether the regional tariff commitments on the continent have come at the expense of adverse side-effects on the prevalence of other – non-tariff – trade barriers. More specifically, regional tariff commitments have not only amplified applied tariff overhangs – the difference between Most Favoured Nation (MFN) bound tariffs and effectively applied tariffs – for African members of the World Trade Organization (WTO), but have also sharply reduced their tariff policy space within Africa, thus leaving regulatory policies such as sanitary and phytosanitary (SPS) measures and technical barriers to trade (TBT) as two of the few legitimate options to level the playing field with market competitors. Comparing the effects of applied tariff overhangs towards all vis-à-vis African trading partners on SPS and TBT notifications of 35 African WTO members between 2001 and 2017, we find no overall relationship between tariff overhangs and import regulation in our preferred model setting. By contrast, larger tariff overhangs specific to intra-African trade relations have a significant share in increasing the probability of SPS measures and TBT. Our findings have important implications for future Pan-African integration under the recently launched African Continental Free Trade Area (AfCFTA) in that success in fostering continental economic integration does not exclusively depend on the realisation of tariff liberalisation, but at the same time on a mindful coordination with non-tariff provisions.
description: Discussion Paper, 13/2021
Lagena aspera Reuss 1861
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Lagenidae
Lagena
Lagena aspera

description: Lagena aspera Reuss, 1861
Figure 2.15
1861 Lagena aspera Reuss, p. 305, pl. 1, fig. 5.
2006 Lagena aspera Reuss; Figueroa, Marchant, Gigglio and Ramírez, fig. 13.
Description. Test subglobular, wall calcareous, hyaline, surface ornamented with regular rows of spines; chamber single; aperture terminal, round at the end of a short neck.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 11, DOI: 10.26879/811, http://zenodo.org/record/10961656
Lagena perlucida
Creators: name: Symphonia, Tabita K.
name: Senthil, Nathan D.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Nodosariata
Nodosariida
Lagenidae
Lagena
Lagena perlucida

description: Lagena perlucida (Montagu, 1803)
Figure 2.16
1803 Vermiculum perlucidum Montagu, p. 525, pl. 14, fig. 3.
2002 Lagena perlucida (Montagu); Gandhi, Rajamanickam and Nigam, p. 56, pl. 2, fig. 3.
Description. Test flask-shaped, unilocular, wall calcareous, finely perforate, surface smooth except for striations at the aboral end; aperture terminal, round at the end of a long neck.
description: Published as part of Symphonia, Tabita K. & Senthil, Nathan D., 2019, Taxonomic notes on Recent Foraminifera from the Continental Shelf-Slope Region of Southwestern Bay of Bengal, East Coast of India, pp. 1-89 in Palaeontologia Electronica (55 A) (55 A) 22 (3) on page 11, DOI: 10.26879/811, http://zenodo.org/record/10961656