cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pakistan Topic Brief: Providing Distance Learning to Hard-to-reach Children
Creators: name: Baloch, Imdad
name: Kaye, Tom
name: Saalim Koomar
name: McBurnie, Chris
Publisher: name: Zenodo
Year: 2020

description: The COVID-19 pandemic has resulted in mass school closures across the world. It is expected that the closures in low- and -middle-income countries (LMICs) will have long-term negative consequences on education and also on broader development outcomes. Countries face a number of obstacles to effectively delivering alternative forms of education. Obstacles include limited experience in facing such challenges, limited teacher digital and pedagogical capacity, and infrastructure constraints related to power and connectivity. Furthermore, inequalities in learning outcomes are expected to widen within LMICs due to the challenges of implementing alternative modes of education in remote, rural or marginalised communities. It is expected that the most marginalised children will feel the most substantial negative impacts on their learning outcomes. Educational technology (EdTech) has been identified as a possible solution to address the acute impact of school closures through its potential to provide distance education. In this light, the DFID Pakistan team requested the EdTech Hub develop a topic brief exploring the use of EdTech to support distance learning in Pakistan. Specifically, the team requested the brief explore ways to provide distance education to children in remote rural areas and urban slums. The DFID team also requested that the EdTech Hub explore the different needs of those who have previously been to school in comparison to those who have never enrolled, with reference to EdTech solutions. In order to address these questions, this brief begins with an overview of the Pakistan education landscape. The second section of the brief explores how four modes of alternative education — TV, interactive radio instruction, mobile phones and online learning — can be used to provide alternative education to marginalised groups in Pakistan. Multimodal distance-learning approaches offer the best means of providing education to heterogeneous, hard-to-reach groups. Identifying various tools that can be deployed to meet the needs of specific population segments is an important part of developing a robust distance-learning approach. With this in mind, this section highlights examples of tools that could be used in Pakistan to support a multimodal approach that reaches the most hard-to-reach learners. The third and final section synthesises the article’s findings, presenting recommendations to inform Pakistan’s COVID-19 education response.

 This topic brief is available on Google Docs.
Synchronizing Public Transport Comodality Networks for City Logistics
Creators: name: Yang, Xuan
name: Luo, Hao
name: Jiang, Ming
Publisher: name: Georgia Institute of Technology
Year: 2021
Subjects: Public transport
City logistics

description: Presented at the 8th International Physical Internet Conference (IPIC 2021) 14-16 June 2021, Virtual
description: Public transport is widely considered as an ideal to travel around. City logistics focuses on improving the efficiency of urban freight transportation while reducing congestion, emission and noise. Public transport co-modality aims to combine city logistics with urban public transport to ensure a more efficient and sustainable urban transportation system. Most public transport systems operate service that has some common characteristics such as pre determined vehicle cycle, fixed route and limited capacity. Based on these characteristics, how to make packages delivery plan to synchronize freight flows and transit networks becomes a significant challenge in public transport co-modality.
Alpha and beta synucleins : from pathophysiology to clinical application as biomarkers
Creators: name: Barba, Lorenzo
name: Paolini Paoletti, Federico
name: Bellomo, Giovanni
name: Gaetani, Lorenzo
name: Halbgebauer, Steffen
name: Oeckl, Patrick
name: Otto, Markus
name: Parnetti, Lucilla
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: The synuclein family includes three neuronal proteins, named α-synuclein, β-synuclein, and γ-synuclein, that have peculiar structural features. α-synuclein is largely known for being a key protein in the pathophysiology of Parkinson's disease (PD) and other synucleinopathies, namely, dementia with Lewy bodies and multisystem atrophy. The role of β-synuclein and γ-synuclein is less well understood in terms of physiological functions and potential contribution to human diseases. α-synuclein has been investigated extensively in both cerebrospinal fluid (CSF) and blood as a potential biomarker for synucleinopathies. Recently, great attention has been also paid to β-synuclein, whose CSF and blood levels seem to reflect synaptic damage and neurodegeneration independent of the presence of synucleinopathy. In this review, we aim to provide an overview on the pathophysiological roles of the synucleins. Because γ-synuclein has been poorly investigated in the field of synucleinopathy and its pathophysiological roles are far from being clear, we focus on the interactions between α-synuclein and β-synuclein in PD. We also discuss the role of α-synuclein and β-synuclein as potential biomarkers to improve the diagnostic characterization of synucleinopathies, thus highlighting their potential application in clinical trials for disease-modifying therapies.
Análisis del clima organizacional en la IPS Syso Empresarial S.A.S.
Creators: name: Gómez Caraballo, Amelia
name: Morales Bustos, Eva
Publisher: name: Universidad de Cartagena
Year: 2019
Subjects: subject: Clima organizacional
subject: IPS Syso Empresarial S.A.S. - Análisis del clima organizacional

description: El objetivo de este trabajo de grado es realizar un diagnóstico de clima organizacional de la IPS SYSO EMPRESARIAL S.A.S y con base a su caracterización, diseñar un plan de mejoramiento.
Production-Intralogistics Synchronization in Physical Internet-enabled Manufacturing Systems
Creators: name: Li, Mingxing
name: Huang, George Q.
Publisher: name: Georgia Institute of Technology
Year: 2021
Subjects: Physical internet
Intralogistics
Syncronization

description: Presented at the 8th International Physical Internet Conference (IPIC 2021) 14-16 June 2021, Virtual
description: The widespread adoption of Physical Internet (PI) technologies has promoted data and information sharing, real-time communication, and networking in the industry, which transforming the operations are managed and performed in many fields such as manufacturing. For example, the production operations and intralogistics operations in a shop floor are inherently coupled and entangled by physical flow (raw materials, components, sub-assemblies, or work-in-progresses). In traditional management mode, the production and intralogistics processes are managed separately by different departments without considering global benefits because the information cannot be timely collected and shared among the department to make informed decisions. Nowadays, advanced Industry 4.0 technologies such as Industrial Internet-of-Things (IIoT), digital twin, and cloud computing are gradually adopted by manufacturers to upgrade their factories. The sheer amount of data are real-timely collected, transmitted, and analyzed so that the information barriers among different department of a single factory are removed. Therefore, it is possible to manage the production and intralogistics processes in a synchronized manner by leveraging the strengths of real-time data, to improve the overall production efficiency and resource utilization.
Perfusion Visualization during Ileal J-Pouch Formation—A Proposal for the Standardization of Intraoperative Imaging with Indocyanine Green Near-Infrared Fluorescence and a Postoperative Follow-Up in IBD Surgery
Creators: name: Lobbes, Leonard A.
name: Berns, Susanne
name: Warschkow, René
name: Schmidt, Leonard R.
name: Schineis, Christian
name: Strobel, Rahel M.
name: Lauscher, Johannes C.
name: Beyer, Katharina
name: Weixler, Benjamin
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: ileal J-pouch
subject: anastomotic leak
subject: ulcerative colitis
subject: perfusion visualization
subject: indocyanine green (ICG) near-infrared fluorescence
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: An anastomotic leak (AL) after a restorative proctocolectomy and an ileal J-pouch increases morbidity and the risk of pouch failure. Thus, a perfusion assessment during J-pouch formation is crucial. While indocyanine green near-infrared fluorescence (ICG-NIRF) has shown potential to reduce ALs, its suitability in a restorative proctocolectomy remains unclear. We aimed to develop a standardized approach for investigating ICG-NIRF and ALs in pouch surgery. Methods: Patients undergoing a restorative proctocolectomy with an ileal J-pouch for ulcerative colitis at an IBD-referral-center were included in a prospective study in which an AL within 30 postoperative days was the primary outcome. Intraoperatively, standardized perfusion visualization with ICG-NIRF was performed and video recorded for postoperative analysis at three time points. Quantitative clinical and technical variables (secondary outcome) were correlated with the primary outcome by descriptive analysis and logistic regression. A novel definition and grading of AL of the J-pouch was applied. A postoperative pouchoscopy was routinely performed to screen for AL. Results: Intraoperative ICG-NIRF-visualization and its postoperative visual analysis in 25 patients did not indicate an AL. The anastomotic site after pouch formation appeared completely fluorescent with a strong fluorescence signal (category 2) in all cases of ALs (4 of 25). Anastomotic site was not changed. ICG-NIRF visualization was reproducible and standardized. Logistic regression identified a two-stage approach vs. a three-stage approach (Odds ratio (OR) = 20.00, 95% confidence interval [CI] = 1.37-580.18, p = 0.029) as a risk factor for ALs. Conclusion: We present a standardized, comparable approach of ICG-NIRF visualization in pouch surgery. Our data indicate that the visual interpretation of ICG-NIRF alone may not detect ALs of the pouch in all cases-quantifiable, objective methods of interpretation may be required in the future.
A dynamic routing protocol with payments for the Physical Internet: A simulation with learning agents
Creators: name: Briand, Martin
name: Franklin, Rod
Publisher: name: Georgia Institute of Technology
Year: 2021
Subjects: Physical internet
Dynamic routing

description: Presented at the 8th International Physical Internet Conference (IPIC 2021) 14-16 June 2021, Virtual
description: The Physical Internet aims to route loads dynamically over a logistic network. • Each times a Load arrives at a Node, a decision must be quickly taken to jointly select the Next node, the Carrier, and the price for this new segment. • Hence the need for a Digital Internet like protocol. Something fast and reliable. • This poster presents what we believe is the first PI dynamic routing protocol taking payments into account. It also present an environment to test the new protocol.
Dynamic Domains of DTS: Simulations of a Spherical Magnetized Couette Flow
Creators: name: Kaplan, Elliot
name: Nataf, Henri-Claude
name: Schaeffer, Nathanaël
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Derviche Tourneur Sodium experiment, a spherical Couette magnetohydrodynamics experiment with liquid sodium as the medium and a dipole magnetic field imposed from the inner sphere, recently underwent upgrades to its diagnostics to better characterize the flow and induced magnetic fields with global rotation. In tandem with the upgrades, a set of direct numerical simulations were run with the xshells code to give a more complete view of the fluid and magnetic dynamics at various rotation rates of the inner and outer spheres. These simulations reveal several dynamic regimes, determined by the Rossby number. At positive differential rotation there is a regime of quasigeostrophic flow, with low levels of fluctuations near the outer sphere. Negative differential rotation shows a regime of what appear to be saturated hydrodynamic instabilities at low negative differential rotation, followed by a regime where filamentary structures develop at low latitudes and persist over five to ten differential rotation periods as they drift poleward. We emphasize that all these coherent structures emerge from turbulent flows. At least some of them seem to be related to linear instabilities of the mean flow. The simulated flows can produce the same measurements as those that the physical experiment can take, with signatures akin to those found in the experiment. This paper discusses the relation between the internal velocity structures of the flow and their magnetic signatures at the surface.
description: 15 pages, 11 figures
(200134) Charles Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Amtliche Mitteilungen der Universität Dortmund Nr. 06/2005
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 2005
Subjects: subject: 080

description: Verhütung und Bekämpfung von Korruption in der öffentlichen Verwaltung
description: Amtliche Mitteilungen der Universität Dortmund ; 6, 2005
A logical qubit in a linear array of semiconductor quantum dots
Creators: name: Jones, Cody
name: Fogarty, Michael A.
name: Morello, Andrea
name: Gyure, Mark F.
name: Dzurak, Andrew S.
name: Ladd, Thaddeus D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We design and analyze a logical qubit composed of a linear array of electron spins in semiconductor quantum dots. To avoid the difficulty of fully controlling a two-dimensional array of dots, we adapt spin control and error correction to a one-dimensional line of silicon quantum dots. Control speed and efficiency are maintained via a scheme in which electron spin states are controlled globally using broadband microwave pulses for magnetic resonance while two-qubit gates are provided by local electrical control of the exchange interaction between neighboring dots. Error correction with two-, three-, and four-qubit codes is adapted to a linear chain of qubits with nearest-neighbor gates. We estimate an error correction threshold of 1e-4. Furthermore, we describe a sequence of experiments to validate the methods on near-term devices starting from four coupled dots.
description: 29 pages, 27 figures, 170 references
Generating an Algebraic Specification from an ER-Model
Creators: name: Doberkat, Ernst-Erich
Publisher: name: Universität Dortmund
Year: 2002
Subjects: subject: 004

description: Entity-Relationship modelling is a rather intuitive technique for specifying the structure of complex data. The technique is popular in part because the structure of an ER-model is easily grasped, and it is usually supported by diagrams or other visualizing tools. This paper deals with a detailed analysis of ER-modelling with the goal of deriving an algebraic specification for a given ER-model. This is motivated by considerations regarding program specification for data intensive applications. We indicate haw the technique demonstrated here may be combined with formal techniques for specifying the functional behavior of a system.
Can Physical Internet support the integrated management of last-mile and first-mile (reverse) logistics? An exploratory analysis
Creators: name: Agnusdei, Giulio Paolo
name: Sgarbossa, Fabio
Publisher: name: Georgia Institute of Technology
Year: 2021
Subjects: Physical internet
Supply chain
Last mile
First mile

description: Presented at the 8th International Physical Internet Conference (IPIC 2021) 14-16 June 2021, Virtual
description: Closed-loop supply chain (CLSC) management developed within the CE paradigm and consists mainly in managing forward and reverse flows within a supply chain simultaneously. Integrating forward and reverse supply chains means that “last mile” logistics activities within the forward flow are strictly interconnected with the first-mile logistics activities of the reverse flow. In this context, Physical Internet (PI) paradigm represents an opportunity to increase logistics management efficiency, because it attempts to transform the way physical objects are handled, moved, stored, realized, supplied and used, by applying concepts from internet data transfer to real-world shipping processes, aiming towards sustainability.
(200136) Henry Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Homomorphic cryptosystems and their applications
Creators: name: Rappe, Dörte K.
Publisher: name: Universität Dortmund
Year: 2005
Subjects: subject: Homomorphic cryptosystems
subject: encrypted computation
subject: branching programs
subject: elliptic curve Paillier scheme
subject: Homomorphe Kryptosysteme
subject: verschlüsselte Berechnungen
subject: Branching Programme
subject: Elliptic Curve Paillier-Verfahren
subject: 510

description: In this thesis we consider homomorphic cryptosystems and their applications. Homomorphic cryptosystems allow for computations on encrypted data.We prove that the search for an algebraically homomorphic scheme can be reduced to the search of a homomorphic scheme on a special non-abelian group. Furthermore, we focus on a special application: computing with encrypted functions and data, respectively. For this application we develop an improved protocol that is efficient for functions that are computable by polynomial branching programs. Finally, we generalise the elliptic curve Paillier scheme by S. Galbraith in order to construct a threshold version of it. For this threshold scheme we develop several Sigma-protocols. Using these protocols we apply our threshold scheme on multiparty computations, electronic voting and commitment schemes.
description: Diese Arbeit beschäftigt sich mit homomorphen Kryptosystemen und ihren Anwendungen. Unter homomorphen Kryptosystemen versteht man Verfahren, die Berechnungen auf verschlüsselten Daten zulassen. Es wird bewiesen, dass die Suche nach einem algebraisch homomorphen Verfahren auf die Suche nach einem homomorphen Verfahren auf speziellen nicht-abelschen Gruppen zurückgeführt werden kann. Außerdem wird auf Berechnungen mit verschlüsselten Daten bzw. verschlüsselten Funktionen als Anwendung genauer eingegangen. Für diese wird ein verbessertes Protokoll vorgestellt, dass für Funktionen, die durch polynomielle Branching Pogramme berechnet werden können, effizient ist. Darüber hinaus wird das Elliptic Curve Paillier-Verfahren von S. Galbraith verallgemeinert, in dem eine Schwellwert-Version des Verfahrens konstruiert wird. Für dieses neue Schwellwertverfahren werden Sigma-Protokolle angegeben, die es ermöglichen, das Verfahren auf Wahlverfahren, Commitment-Verfahren und Multiparty-Computation anzuwenden.
Absence of superfluidity in a quasi one-dimensional parahydrogen fluid adsorbed inside carbon nanotubes
Creators: name: Del Maestro, Adrian
name: Boninsegni, Massimo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A recent claim of superfluid behaviour of parahydrogen adsorbed inside armchair carbon nanotubes [M. Rossi and F. Ancilotto, Phys. Rev. B 94, 100502 (2016)] is disproven by means of first principle computer simulations. Conclusive numerical evidence shows that the low temperature equilibrium thermodynamic phase of parahydrogen adsorbed inside a (10,10) armchair nanotube features a crystalline shell adsorbed on the inner surface of the tube, and a well separated quasi one-dimensional central column showing no evidence of possible fluid or superfluid behaviour. Rather, the system is quasi-crystalline and non-superfluid; its physical character is qualitatively identical to that observed in similar confined settings extensively studied in the past. The incorrect prediction of superfluidity stems from the erroneous use of an effective one-dimensional interaction potential that does not describe parahydrogen at the center of the nanotube.
description: Replaced with published version
Infinite-size density matrix renormalization group with parallel Hida's algorithm
Creators: name: Ueda, Hiroshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this study, we report a parallel algorithm for the infinite-size density matrix renormalization group (iDMRG) that is applicable to one-dimensional (1D) quantum systems with $\ell$-site periods, where $\ell$ is an even number. It combines Hida's iDMRG applied to random 1D spin systems with a variant of McCulloch's wavefunction prediction. This allows us to apply $\ell/2$ times of computational power to accelerate the investigation of multi-leg frustrated quantum systems in the thermodynamic limit, which is a challenging simulation. We performed benchmark calculations for a spin-1/2 Heisenberg model on a Kagome cylinder YC8 using the parallel iDMRG, and found that the proposed iDMRG was efficiently parallelized for shared memory and distributed memory systems, and provided such bulk physical quantities as total energy, bond strength on nearest neighbor spins, and spin--spin correlation functions and their correlation lengths without finite-size effects. Moreover, the variant of the wavefunction prediction sped up Lanczos methods in the parallel iDMRG by approximately three times.
description: 7 pages, 13 figures
MPEC 2023-O23 : 2012 YF8
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
(200137) John William Barton
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Beweisvorstellungen und deren Einfluss auf das eigenständige Beweisen
Creators: name: Grundey, Svenja
name: Knipping, Christine
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: Begründungen und Beweise spielen in der Mathematik und in den heutigen Bildungsplänen eine zentrale Rolle. Trotz dieser Bedeutung zeigen viele mathematikdidaktische Studien, dass Lernende große Schwierigkeiten mit dem mathematischen Argumentieren und Beweisen haben (z.B. Healy & Hoyles 1998, Reiss, Klieme & Heinze, 2001) und es wird versucht, Ursachen für die beobachteten Schwierigkeiten zu identifizieren. In diesem Beitrag wird der Frage nachgegangen, welchen Einfluss Beweisvorstellungen auf eigenständige Beweisprozesse von Lernenden haben können. Dies wird exemplarisch anhand prototypischer Fallbeispiele erläutert. Weiterhin wird ein theoretisches Konzept vorgestellt, welches einen möglichen Erklärungsansatz für beobachtete Schwierigkeiten aber auch für gelungene eigenständige Beweisprozesse liefert. Die im Folgenden dargestellten Daten wurden im Rahmen einer Studie erhoben, bei der, angelehnt an das Dortmunder Modell der fachdidaktischen Entwicklungsforschung (Prediger et al. 2012), ein Designexperiment zur Förderung eines differenzierten Beweisverständnisses entwickelt und empirisch überprüft wurde.
Ausführungsvarianten während formellen Anlässen - Eine Analyse für die Deutschschweizer Gebärdensprache
Creators: name: Bangerter, Tamara
Publisher: name: Zenodo
Year: 2013
Subjects: Gebärdensprache
Gebärdensprachedolmetschen
Bachelorarbeit

description: Um die Ausdrucksweisen des formellen Registers zu beschreiben, werden Gebärden in der vorliegenden Dokumentanalyse mittels einer qualitativen Methode bezüglich ihrer manuellen Komponenten untersucht. Es werden Abweichungen zur Grundform in Bezug auf die Ausführungsstelle (mittels einer detaillierten frontalen Gebärdenraum-Einteilung), auf Einhändigkeit/Zweihändigkeit und bezüglich des Tempos erfasst und ausgewertet. Zudem werden Indexe zum Publikum untersucht. Die Ergebnisse werden in Tabellen und Bildern dokumentiert. Die auftretenden Ausführungsvarianten während formellen Anlässen können wie folgt zusammengefasst werden: Der Gebärdenraum bei lexikalisierten Gebärden wird weitreichender und tendenziell höher oben genutzt. Fast alle einhändigen Gebärden werden in Zweihändige abgeändert. Indexe werden ausserhalb des neutralen Bereichs mit der Flachhand und mit einer Bewegung produziert.
Gravitational smoothing of kinks on cosmic string loops
Creators: name: Wachter, Jeremy M.
name: Olum, Ken D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze the effect of gravitational back reaction on cosmic string loops with kinks, which is an important determinant of the shape, and thus the potential observability, of string loops which may exist in the universe today. Kinks are not rounded off, but may be straightened out. This means that back reaction will only cause loops with kinks to develop cusps after some potentially large fraction of their lifetimes. In some loops, symmetries prevent even this process, so that the loop evaporates in a self-similar fashion and the kinks are unchanged. As an example, we discuss back-reaction on the rectangular Garfinkle-Vachaspati loop.
description: 8 pages, 3 figures; updated to version accepted in PRL. Please see ancillary files for erratum
Anisotropy induces non-Fermi-liquid behavior and nematic magnetic order in three-dimensional Luttinger semimetals
Creators: name: Boettcher, Igor
name: Herbut, Igor F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We illuminate the intriguing role played by spatial anisotropy in three-dimensional Luttinger semimetals featuring quadratic band touching and long-range Coulomb interactions. We observe the anisotropy to be subject to an exceptionally slow renormalization group (RG) evolution so that it can be considered approximately constant when computing the impact of quantum fluctuations on the remaining couplings of the system. Using perturbative RG we then study the competition of all local short-range interactions that are generated from the long-range interactions for fixed anisotropy. Two main effects come to light for sufficiently strong anisotropy. First, the three-dimensional system features an Abrikosov non-Fermi liquid ground state. Second, there appear qualitatively new fixed points which describe quantum phase transitions into phases with nemagnetic orders - higher-rank tensor orders that break time-reversal symmetry, and thus have both nematic and magnetic character. In real materials these phases may be realized through sufficiently strong microscopic short-range interactions. On the pyrochlore lattice, the anisotropy-induced fixed points determine the onset of all-in-all-out or spin ice ordering of local magnetic moments of the electrons.
description: 13+18 pages
Opportunities and constraints of presentation international virtual GDM-conference presentations
Creators: name: Groessler, Matthias
name: Platz, Melanie
name: Rapp, Jörg
name: Buchheit, Stefanie
name: Niehaus, Engelbert
Publisher: name: Gesellschaft für Didaktik der Mathematik
Year: 2014
Subjects: subject: 510

description: The objective of this article is to present the opportunities and limits of international virtual conference (VC) contribution in the terms of a video presentations and discussions via a video conferencing system. The basis for this article is the positive experience made at international expert meetings in cooperation with the United Nations (UNOOSA) at the UN-Campus in Bonn organized by the University of Koblenz-Landau. The possibilities for international cooperation in the area of mathematics education with developing countries are visualised by the example of the spatial perception of risks. The basic principle of this virtual participation mode of a conference is a shift from high cost solutions to low cost solutions. On the one hand there might be always a drawback regarding to the performance and precision of the transfer of the content of the information and as well the acceptance of the audience might also not be given completely at the beginning as the options of interaction are limited by a certain degree. On the other hand the total cost of ownership can be reduced by a high amount and therefore the number of people who can afford to participate the conference can be increased especially for developing countries. The article will start with a comparison of the requirements and constraints of the conference and the benefits for authors and participants. Afterwards the concept of an open community approach will be presented. The results of the comparison and the ideas of the open community approach will then be summarized in recommendations and a conclusion for a VC mode for the GDM.
(200156) Gladys Mary Bevan
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Pleuropulmonary pathologies in the early phase of acute pancreatitis correlate with disease severity
Creators: name: Luiken, Ina
name: Eisenmann, Stephan
name: Garbe, Jakob
name: Sternby, Hanna
name: Verdonk, Robert C.
name: Dimova, Alexandra
name: Ignatavicius, Povilas
name: Ilzarbe, Lucas
name: Koiva, Peeter
name: Penttilä, Anne K.
name: Regnér, Sara
name: Dober, Johannes
name: Wohlgemuth, Walter A.
name: Brill, Richard
name: Michl, Patrick
name: Rosendahl, Jonas
name: Damm, Marko
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Background: Respiratory failure worsens the outcome of acute pancreatitis (AP) and underlying factors might be early detectable. Aims: To evaluate the prevalence and prognostic relevance of early pleuropulmonary pathologies and pre-existing chronic lung diseases (CLD) in AP patients. Methods: Multicentre retrospective cohort study. Caudal sections of the thorax derived from abdominal contrast enhanced computed tomography (CECT) performed in the early phase of AP were assessed. Independent predictors of severe AP were identified by binary logistic regression analysis. A one-year survival analysis using Kaplan-Meier curves and log rank test was performed. Results: 358 patients were analysed, finding pleuropulmonary pathologies in 81%. CECTs were performed with a median of 2 days (IQR 1–3) after admission. Multivariable analysis identified moderate to severe or bilateral pleural effusions (PEs) (OR = 4.16, 95%CI 2.05–8.45, p<0.001) and pre-existing CLD (OR = 2.93, 95%CI 1.17–7.32, p = 0.022) as independent predictors of severe AP. Log rank test showed a significantly worse one-year survival in patients with bilateral compared to unilateral PEs in a subgroup. Conclusions: Increasing awareness of the prognostic impact of large and bilateral PEs and pre-existing CLD could facilitate the identification of patients at high risk for severe AP in the early phase and thus improve their prognosis.
"Twelve challenges for critical data practice" cards
Creators: name: Bounegru, Liliana
name: Gray, Jonathan W. Y.
Publisher: name: Zenodo
Year: 2023
Subjects: data journalism
data practices
critical data studies
critical data literacy
data infrastructure literacy
media literacy
data studies
science and technology studies
critical data practice

description: Printable cards of "twelve challenges for critical data practice" from Bounegru, L., & Gray, J. (Eds.). (2021). The Data Journalism Handbook: Towards a Critical Data Practice. Amsterdam: Amsterdam University Press.
Semi-globally Exponential Trajectory Tracking for a Class of Spherical Robots
Creators: name: Madhushani, T. W. U.
name: Maithripala, D. H. S.
name: Wijayakulasooriya, J. V.
name: Berg, J. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A spherical robot consists of an externally spherical rigid body rolling on a two-dimensional surface, actuated by an auxiliary mechanism. For a class of actuation mechanisms, we derive a controller for the geometric center of the sphere to asymptotically track any sufficiently smooth reference trajectory, with robustness to bounded, constant uncertainties in the inertial properties of the sphere and actuation mechanism, and to constant disturbance forces including, for example, from constant inclination of the rolling surface. The sphere and actuator are modeled as distinct systems, coupled by reaction forces. It is assumed that the actuator can provide three independent control torques, and that the actuator center of mass remains at a constant distance from the geometric center of the sphere. We show that a necessary and sufficient condition for such a controller to exist is that for any constant disturbance torque acting on the sphere there is a constant input such that the sphere and the actuator mechanism has a stable relative equilibrium. A geometric PID controller guarantees robust, semi-global, locally exponential stability for the position tracking error of the geometric center of the sphere, while ensuring that actuator velocities are bounded.
description: Pre-print submitted to Automatica on 01/03/2017
Birth cohort studies using symptom diaries for assessing respiratory diseases : a scoping review
Creators: name: Langer, Susan
name: Klee, Bianca
name: Gottschick, Cornelia
name: Mikolajczyk, Rafael
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Background: Respiratory infections are the most frequent health problem in childhood leading to morbidity and socioeconomic burden. Studying symptoms of respiratory infections in home based settings requires dedicated prospective cohort studies using diaries. However, no information is available on which birth cohort studies using symptom diary data. A review of birth cohort studies with available symptom diary data, follow-up data, and bio samples is needed to support research collaborations and create potential synergies. Methods: We conducted a scoping review of birth cohort studies using diaries for the collection of respiratory symptoms. The scoping review was conducted in accordance with the PRISMA Extension. We searched the electronic databases PubMed, Embase, Web of science and CINAHL (last search November 2020) resulting in 5872 records (based on title and abstract screening) eligible for further screening. Results: We examined 735 records as full text articles and finally included 57 according to predefined inclusion criteria. We identified 22 birth cohort studies that collect(ed) data on respiratory symptoms using a symptom diary starting at birth. Numbers of participants ranged from 129 to 8677. Eight studies collected symptom diary information only for the first year of life, nine for the first two years or less and six between three and six years. Most of the cohorts collected biosamples (n = 18) and information on environmental exposures (n = 19). Conclusion: Information on respiratory symptoms with daily resolution was collected in several birth cohorts, often including related biosamples, and these data and samples can be used to study full spectrum of infections, particularly including those which did not require medical treatment.
(200135) Elizabeth Copley Keightley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Die Veränderung der Einstellung gegenüber gehörlosen Menschen bei hörenden Jugendlichen
Creators: name: Auf der Mauer, Jeanne
Publisher: name: Zenodo
Year: 2013
Subjects: Gebärdensprache
Gebärdensprachedolmetschen
Bachelorarbeit

description: Wie in vielen Organisationen und Institutionen im und rund um das Behindertenwesen wurde und wird auch im Gehörlosenwesen versucht mittels Öffentlichkeits- und Sensibilisierungsarbeit in Schulen die stereotypen Bilder von und Vorurteile gegenüber gehörlosen Menschen in positiver Weise zu verändern. Meistens geschieht dies durch einen einmaligen Besuch, bzw. eine einmalige Intervention im Unterricht. Im Rahmen dieser Bachelorarbeit wird anhand einer quantitativen Befragung der Frage nachgegangen, ob sich in der Einstellung von Jugendlichen zu gehörlosen Menschen nach einem einmalig durchgeführten Unterrichtsblock mit einer gehörlosen Fachperson eine derartige Veränderung nachweisen lässt. Damit soll die Effizienz dieser im Zuge der Öffentlichkeitsarbeit angewandten Methode überprüft werden. Die Daten zur Einstellung der Jugendlichen wurden durch ein Paneldesign anhand eines QuasiExperimentes erhoben. Dabei wurden zwei Gruppen von jugendlichen Schülern und Schülerinnen zu zwei Zeitpunkten zu ihrer Einstellung befragt. Mit der einen Gruppe wurde zwischen den beiden Befragungen eine zu diesem Zweck konstruierte Unterrichtseinheit durchgeführt. Bei der zweiten Gruppe, welche als Kontrollgruppe fungierte, fand keine solche Unterrichtseinheit statt. Die Auswertung der Ergebnisse zeigt trotz des Unterrichtsblockes keine signifikanten Unterschiede, bzw. Veränderungen der Unterrichtsgruppe in ihrer Einstellung zu gehörlosen Menschen. Als Gründe werden einerseits die relative Stabilität der bestehenden Einstellung gegenüber Gehörlosen, andererseits die kurze Zeitspanne der Unterrichtseinheit, in der eine ausführliche Beschäftigung mit dem Thema und ein vertiefter Kontakt mit einem gehörlosen Menschen nicht zustande kommen kann, vermutet. Der letzte Aspekt wäre für eine messbare und nachhaltige Veränderung von Einstellungen unabdingbar
Lacon monticola
Creators: name: Hoffmannova, Johana
name: Packova, Gabriela
name: Prosvirov, Alexander S.
name: Akhter, Muhammad Atique
name: Kundrata, Robin
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Lacon
Lacon monticola

description: Lacon monticola (Candèze, 1897)
Adelocera monticola Candèze, 1897: 6.
Lacon monticola: attributed to Fleutiaux (1926: 93) by Hayek (1973: 72) [although not explicitly mentioned in Fleutiaux (1926)].
Distribution. “Himalaya”, Pakistan (Cate 2007, Platia 2015a).
Literature. Platia (2015a: 5): first record from Pakistan, figures of habitus and male and female genitalia.
Remarks. Since the lectotype of L. monticola deposited in the Muséum national d’Histoire naturelle, Paris, France differ in several morphological aspects from the species identified as L. monticola and imaged by Platia (2015a), we hypothesize that the published records from Pakistan may belong to a still undescribed species similar to L. kabakovi Prosvirov, 2016 from Afghanistan (Prosvirov 2016).
description: Published as part of Hoffmannova, Johana, Packova, Gabriela, Prosvirov, Alexander S., Akhter, Muhammad Atique & Kundrata, Robin, 2023, An updated catalogue of Agrypninae (Coleoptera: Elateridae) from Pakistan, pp. 281-305 in Zootaxa 5270 (2) on page 288, DOI: 10.11646/zootaxa.5270.2.6, http://zenodo.org/record/7864780
Differential response of tree species from Brazilian tropical dry Forest (Caatinga) to phosphorus doses associated with organic matter
Creators: name: da Nobrega Santos, Elidayane
name: Araujo, Josinaldo Lopes
name: da Silva Marcelino, Rita Magally Oliveira
name: de Jesus, Edmar Gonçalves
name: de Mesquita, Evandro Franklin
name: de Oliveira, Flávio Sarmento
name: Ribeiro, Wellington Souto
name: Zanuncio, Jose Cola
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 60506 Virology

description: The availability of phosphorus (P) and organic matter in Chromic Luvisols, predominant in the Caatinga biome, is generally low and makes it difficult to reintroduce native plants in forest recovery projects. The objective was to evaluate the production of dry mass, accumulation a and use efficiency of P by three tree species native from Caatinga biome with application of doses of P and organic matter. This experiment was carried out in a greenhouse in a completely randomized design in a 2 × 3 × 5 factorial scheme, consisting of with two doses of organic matter (0 and 50 g kg−1), three species of plants (Tabebuia aurea (Silva Manso) Benth. & Hook.f. ex S Moore, Amburana cearensis, Allemão AC Smith and Caesalpinia ferrea Mart. Ex Tul.) and five doses of P (0, 50, 100, 150 and 200 mg dm−3). At 120 days after transplanting, concentrations of P available in the soil and leaf soluble P fractions increased linearly with the P doses. The availability of P in the soil and, consequently, the accumulation of soluble and total P in the plant tissues were greater with organic matter application. The studied species use different P compartmentalization strategies depending on their dry mass production capacity. Phosphate and or organic matter application is necessary in the initial growth phase of the studied species, notably T. aurea and C. ferrea. The dry mass of T. aurea was greater than that of C. ferrea and A. cearensis.
Variability in the Speech of Children in Dutch: A Phonetic Analysis of Vowel Consistency using Picture Naming
Creators: name: Ausum, Leah
name: Berkenveld, Midas
name: Cowell, Rebecca
name: Roeloffs, Jelle J.W.
name: Vis, Lennart
Publisher: name: Zenodo
Year: 2023
Subjects: Child language
Dutch
Formants
Picture Naming
Phonetic Analysis
Vowels

description: This paper examines the degree of consistency in the vowel production among children aged 4 to 12 and adult participants. The study employed picture naming tasks in recording the participants’ voices. The primary objective of this research was to investigate the hypothesis that vowel production becomes more consistent with increasing age. Two distinct tests were conducted for data analysis: a control test to assess the significance of differences between the adult and child participant groups, and a regression analysis to determine the significance of age-related effects within the child participant group. However, neither test revealed any significant effects. The absence of significant findings can be attributed to certain limitations of the study, which are discussed. This research aims to contribute to the understanding of vowel production consistency across different age groups, while emphasising the need for further exploration and refinement of the experimental design to achieve more conclusion results.
description: This paper was written for a Ba course assignment.