cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dramatizing Development: The Celebration and Reality of West German Village Projects in West Africa, 1962-1977
Creators: name: Weigel, John Wesley
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: History

description: In West Africa, the Federal Republic of Germany hoped to do well by doing good. In cooperation with the host governments of Ghana, Togo and Dahomey and with local notables, official West German development agencies planned and operated four development projects during the 1960s and early 1970s, aiming to help several villages earn their way to higher standards of living by forming cooperatives and producing for agricultural or fish markets. At the same time the FRG and host governments joined together to stage “development theater.” That is, they exploited the projects through ceremonies and publicity to highlight their own benevolence and the villagers’ gratitude. In reality the projects mostly fared badly because of practical German mistakes, incompetent German managers, and confusion over the proper organization of cooperatives. The Germans were also guilty of cultural hubris, failing either to investigate villager needs or to appreciate the wisdom of local practices. This dissertation ties together disparate bodies of scholarly literature on symbolic politics, development aid administration, development aid critiques, and the history of conflict between European and African agricultural, domestic and medical knowledge and practices. Small village development projects served the needs of symbolic politics much as large-scale projects have done, even though they brought only small or no advantage to the villagers. The projects went astray largely because the West Germans were blinded by a “colonial gaze” that prevented them from valuing villager experience, yet the “gaze,” projected outward, became an advantage in “development theater” by vii making villagers appear needy and ignorant or, where necessary, guilty of making the projects go wrong by not working hard enough.
PO 33 - SÍNDROME DE STEINERT: UMA ABORDAGEM ANESTÉSICA DESAFIANTE
Creators: name: Chaves1, Catarina Cruz
name: Azevedo1, Bárbara Filipa Gomes
Publisher: name: Revista da Sociedade Portuguesa de Anestesiologia
Year: 2023

description: .
description: Revista da Sociedade Portuguesa de Anestesiologia, Vol. 31 N.º 1 (2022): SUPLEMENTO Revista da Sociedade Portuguesa de Anestesiologia
Glimpse Clouds: Human Activity Recognition from Unstructured Feature Points
Creators: name: Baradel, Fabien
name: Wolf, Christian
name: Mille, Julien
name: Taylor, Graham W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a method for human activity recognition from RGB data that does not rely on any pose information during test time and does not explicitly calculate pose information internally. Instead, a visual attention module learns to predict glimpse sequences in each frame. These glimpses correspond to interest points in the scene that are relevant to the classified activities. No spatial coherence is forced on the glimpse locations, which gives the module liberty to explore different points at each frame and better optimize the process of scrutinizing visual information. Tracking and sequentially integrating this kind of unstructured data is a challenge, which we address by separating the set of glimpses from a set of recurrent tracking/recognition workers. These workers receive glimpses, jointly performing subsequent motion tracking and activity prediction. The glimpses are soft-assigned to the workers, optimizing coherence of the assignments in space, time and feature space using an external memory module. No hard decisions are taken, i.e. each glimpse point is assigned to all existing workers, albeit with different importance. Our methods outperform state-of-the-art methods on the largest human activity recognition dataset available to-date; NTU RGB+D Dataset, and on a smaller human action recognition dataset Northwestern-UCLA Multiview Action 3D Dataset. Our code is publicly available at https://github.com/fabienbaradel/glimpse_clouds.
description: CVPR 2018 - project page: https://fabienbaradel.github.io/cvpr18_glimpseclouds/
Vanishing of Nonabelian Berry Phases in Heavy Solitonic Baryons
Creators: name: Lee, Hyun Kyu
name: Rho, Mannque
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we show -- using a reasoning applicable to both the excitation spectrum in the chiral bag model and the hyperfine structure of diatomic molecules -- that the generic form of a non- abelian Berry potential appears in heavy-quark effective theory (HQET) and that the Berry potential vanishes for the soliton- heavy meson bound state in the heavy-quark limit. The vanishing of the Berry potential in HQET is shown to be related to the restoration of heavy-quark symmetry in infinite heavy-quark-mass limit in close analogy to diatomic molecules at infinite internuclear separation.
description: Latex, 21 pages; no figures; DSM-CEA T93/021
Phases of dense matter in compact stars
Creators: name: Blaschke, David
name: Chamel, Nicolas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars are unique cosmic laboratories for probing the properties of matter under extreme conditions that cannot be reproduced in terrestrial laboratories. The interior of a neutron star, endowed with the highest magnetic fields known and with densities spanning about ten orders of magnitude from the surface to the centre, is predicted to exhibit various phases of dense strongly interacting matter, whose physics is reviewed in this chapter. The outer layers of a neutron star consist of a solid nuclear crust, permeated by a neutron ocean in its densest region, possibly on top of a nuclear "pasta" mantle. The properties of these layers and of the homogeneous isospin asymmetric nuclear matter beneath constituting the outer core may still be constrained by terrestrial experiments. The inner core of highly degenerate, strongly interacting matter poses a few puzzles and questions which are reviewed here together with perspectives for their resolution. Consequences of the dense-matter phases for observables such the neutron-star mass-radius relationship and the prospects to uncover their structure with modern observational programmes are touched upon.
description: 62 pages, 11 figures, revised and extended contribution to the White Book of "NewCompStar" European COST Action MP1304. arXiv admin note: text overlap with arXiv:1707.04966 by other authors
Observation of anomalous π modes in photonic Floquet engineering
Creators: name: Cheng, Qingqing
name: Pan, Yiming
name: Wang, Huaiqiang
name: Zhang, Chaoshi
name: Yu, Dong
name: Gover, Avi
name: Zhang, Haijun
name: Li, Tao
name: Zhou, Lei
name: Zhu, Shining
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Recent progresses on Floquet topological phases have shed new light on time-dependant quantum systems, among which one-dimensional (1D) Floquet systems have been under extensive theoretical research. However, an unambiguous experimental observation of these 1D Floquet topological phases has still been lacking. Here, by periodically bending ultrathin metallic arrays of coupled corrugated waveguides, a photonic Floquet simulator was well designed and successfully fabricated to simulate the periodically driven Su-Schrieffer-Heeger model. Intriguingly, under moderate driven frequencies, we first experimentally observed and theoretically verified the Floquet topological $π$ mode propagating along the array's boundary. The different evolutionary behaviors between static and non-static topological end modes have also been clearly demonstrated. Our experiment also reveals the universal high-frequency behavior in perically driven systems. We emphasize that, our system can serve as a powerful and versatile testing ground for various phenomena related to time-dependant 1D quantum phases, such as Thouless charge pumping and manybody localization.
description: 6 pages, 5 figures
PO 32 - BONE CEMENT IMPLANTATION SYNDROME: A CASE REPORT
Creators: name: Gonçalves1, Beatriz Carvalho
name: Carvalho1, Daniel
name: Rodrigues1, Ricardo
name: Passos1, Madalena
Publisher: name: Revista da Sociedade Portuguesa de Anestesiologia
Year: 2023

description: .
description: Revista da Sociedade Portuguesa de Anestesiologia, Vol. 31 N.º 1 (2022): SUPLEMENTO Revista da Sociedade Portuguesa de Anestesiologia
Crustal structure below Popocatépetl Volcano (Mexico) from analysis of Rayleigh waves
Creators: name: De Barros, Louis
name: Pedersen, Helle
name: Métaxian, J. -P.
name: Valdés-Gonzales, C.
name: Lesage, Philippe
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: An array of ten broadband stations was installed on the Popocatépetl volcano (Mexico) for five months between October 2002 and February 2003. 26 regional and teleseismic earthquakes were selected and filtered in the frequency time domain to extract the fundamental mode of the Rayleigh wave. The average dispersion curve was obtained in two steps. Firstly, phase velocities were measured in the period range [2-50] s from the phase difference between pairs of stations, using Wiener filtering. Secondly, the average dispersion curve was calculated by combining observations from all events in order to reduce diffraction effects. The inversion of the mean phase velocity yielded a crustal model for the volcano which is consistent with previous models of the Mexican Volcanic Belt. The overall crustal structure beneath Popocatépetl is therefore not different from the surrounding area, and the velocities in the lower crust are confirmed to be relatively low. Lateral variations of the structure were also investigated by dividing the network into four parts and by applying the same procedure to each sub-array. No well-defined anomalies appeared for the two sub-arrays for which it was possible to measure a dispersion curve. However, dispersion curves associated with individual events reveal important diffraction for 6 s to 12 s periods which could correspond to strong lateral variations at 5 to 10 km depth.
Does Tropical Cyclone Modification Make Sense? A Decision Analytic Perspective
Creators: name: Klima, Kelly
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led the Department of Homeland Security to fund research on intentional hurricane modification. Here I present a decision analytic assessment of whether hurricane modification is potentially cost effective in South Florida. First, for a single storm I compare hardening buildings to lowering the wind speed of a TC by reducing sea surface temperatures with wind-wave pumps. I find that if it were feasible and properly implemented, modification could reduce net wind losses from an intense storm more than hardening structures. However, hardening provides "fail safe" protection for average storms that might not be achieved if the only option were modification. The effect of natural variability is larger than that of either strategy. Second, for multiple storms over a given return period, I investigate TC wind and storm surge damage reduction by hardening buildings and by wind-wave pumps. The coastal areas examined experience more surge damages for short return periods, and more wind damages for long periods. Surge damages are best reduced through a surge barrier. Wind damages are best reduced by a portfolio of techniques including wind-wave pumps, assuming they work and are correctly deployed. Damages in areas outside of the floodplain will likely be dominated by wind damages, and hence a similar portfolio will likely be best in these areas. Since hurricane modification might become a feasible strategy for reducing hurricane damages, to facilitate an informed and constructive discourse on implementation, policy makers need to understand how people perceive hurricane modification. Therefore using the mental models approach, I identified Florida residents’ perceptions of hurricane modification techniques. First, hurricane modification was perceived as a relatively ineffective strategy for damage reduction. Second, hurricane modification was expected to lead to changes in path, but not necessarily strength. Third, reported anger at hurricane modification was weaker when path was unaltered and the damages equal to or less than projected. Fourth, individuals who recognized the uncertainty inherent in hurricane prediction reported more anger at scientists across modification scenarios.
Reflexiones sobre el reconocimiento social de las personas privadas de la libertad en cárceles y su impacto en los procesos de resocialización
Creators: name: Rojas Pedraza, Oriana
Publisher: name: Universidad Externado de Colombia. Centro de Investigación en Política Criminal
Year: 2023
Subjects: subject: Tejido social – Colombia
subject: Rehabilitación de delincuentes – Colombia
subject: Rehabilitación de delincuentes juveniles – Colombia
subject: Resocialización
subject: Estado de cosas inconstitucional
subject: Reconocimiento social
subject: Personas privadas de la libertad
subject: Prevención
subject: Diálogo social

description: La falta de reconocimiento social de las personas privadas de la libertad en Colombia representa un obstáculo significativo para su resocialización. Este artículo tiene como objetivo principal analizar tres causas fundamentales que contribuyen a agravar los procesos de exclusión que enfrentan este grupo de personas y que a su vez dificultan la materialización del principio resocializador de la intervención penal. Se examinará la ideología de la estigmatización, la legitimación de la violencia y la influencia de los medios de comunicación en la configuración de la percepción pública sobre la cuestión criminal. Además, se realizará una aproximación al caso de los Diálogos Regionales Vinculantes, un proceso que evidencia la ausencia de reconocimiento social real de las personas privadas de la libertad en Colombia, lo que les despoja de una oportunidad para reintegrarse efectivamente a la sociedad en el marco de una gobernanza participativa de cara a los desafíos de la construcción de paz en Colombia.
description: People deprived of Liberty in Colombia fase a significant barrier to reintegrating into society due to the absence of social recognition. The purpose of this article is to analyze three fundamental causes that contribute to exacerbating the exclusión processes faced by this group, thereby hindering the realization of the resocialization principle in penal interventions. Analysis will focus on the stigmatization ideology, violence legitimation, and the media role in shaping public perception of the criminal issue. Furthermore, the “Diálogos Regionales Vinculantes” will be explored, a process which highlights the lack of social recognition of people deprived of their freedom in Colombia. In the context of Colombia´s peace building challenges, it has been denied the opportunity to effectively reintegrate into society through participatory governance.
On the structure of QCD confining string
Creators: name: Boyko, P. Yu.
name: Gubarev, F. V.
name: Morozov, S. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This paper had been withdrawn because the prime reported effect had not been confirmed in further investigations (see arXiv:0812.4488 [hep-lat]).
description: This paper has been withdrawn
Scattering of internal tides by barotropic quasigeostrophic flows
Creators: name: Savva, Miles A. C.
name: Vanneste, Jacques
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Oceanic internal tides and other inertia-gravity waves propagate in an energetic turbulent flow whose lengthscales are similar to the wavelengths. Advection and refraction by this flow cause the scattering of the waves, redistributing their energy in wavevector space. As a result, initially plane waves radiated from a source such as a topographic ridge become spatially incoherent away from the source. To examine this process, we derive a kinetic equation which describes the statistics of the scattering under the assumptions that the flow is quasigeostrophic, barotropic, and well represented by a stationary homogeneous random field. Energy transfers are quantified by computing a scattering cross section and shown to be restricted to waves with the same frequency and identical vertical structure, hence the same horizontal wavelength. For isotropic flows, scattering leads to an isotropic wavefield. We estimate the characteristic time and length scales of this isotropisation, and study their dependence on parameters including the energy spectrum of the flow. Simulations of internal tides generated by a planar wavemaker carried out for the linearised shallow-water model confirm the pertinence of these scales. A comparison with the numerical solution of the kinetic equation demonstrates the validity of the latter and illustrates how the interplay between wave scattering and transport shapes the wave statistics.
description: 26 pages, 7 figures
title: Lettres de Jacques Leibowitch au Docteur Bernard Lebkiri (Centre d'Hémodialyse de l'Alma)
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111133487615
description: created: start=1992-10-16;end=1992-11-04
Discrete lattice symmetry breaking in a two-dimensional frustrated spin-1 Heisenberg model
Creators: name: Chen, Ji-Yao
name: Capponi, Sylvain
name: Poilblanc, Didier
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spontaneous discrete symmetry breaking can be described in the framework of Projected Entangled Pair States (PEPS) by linearly superposing local tensors belonging to two (or more) symmetry classes of tensors. This is illustrated in the case of a frustrated spin-1 Heisenberg model on the square lattice, which hosts a nematic spin liquid spontaneously breaking lattice $π/2$-rotation symmetry. A superposition of SU(2)-symmetric PEPS tensors belonging to two irreducible representations of the lattice point group is shown to capture accurately the properties of the nematic phase, as shown from a comparison to Exact Diagonalisations and Density Matrix Renormalization Group results.
description: 10 pages, 12 figures. V2: reference added. V3: reference added, published version
Hard Photon Pair Production at LEP
Creators: name: Ballestrero, A.
name: Maina, E.
name: Moretti, S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of photon pairs in $e^+e^-\rightarrow f \bar f γγ$ processes is studied using exact helicity amplitudes at tree level. Total cross sections, including initial state radiation effects, are given. They are presented in the case of quarks as a function of $y_{\rm cut}$ in the JADE algorithm. In the case of leptons we use cuts similar to the ones employed in a recent L3 analysis. Masses of the final state fermions are taken into account when appropriate. The cross section $e^+e^-\rightarrow τ^+ τ^- γγ$ is about 10\% larger when the $τ$ mass is neglected. We obtain, with a different method, results which are in good agreement with L3 Montecarlo simulation.
description: 7 Pages (4 Figs available from the authors in Postscript or via Fax ), LaTex, DFTT 4/93
Do You See What I See? Perception and Navigation in Online Deliberation
Creators: name: W. Ben Towne
Publisher: name: Carnegie Mellon University
Year: 2017
Subjects: subject: 80399 Computer Software not elsewhere classified
subject: FOS: Computer and information sciences

description: Some of the most pressing challenges facing humanity today, such as how to respond to climate change or govern the internet, are too complex for any individual or small group to completely understand by themselves, but a lot of people each know a piece of the problem or solution. This is somewhat like a billion-piece jigsaw puzzle where somebody threw away the box and mailed each piece to a different person. Attempts are now being made to build platforms where people can bring their pieces and assemble them into solutions. This thesis examines such platforms, how people use and perceive them and their content, and how certain design decisions such as the exposure of discussion behind collaboratively produced content can affect those perceptions. Through a set of studies ranging from qualitative interviews to controlled experiments with hundreds or thousands of participants, this thesis adds to our understanding of how humans use and perceive content on such platforms, including when primary content is presented alongside related content or discussion, so that we can better understand how to design these systems to better achieve their users’ intended goals. The research integrates insights from computer science and social psychology with latent variable modeling techniques in order to increase our understanding of what people are trying to accomplish on an example platform designed to support large-scale collaboration around a complex issue, and experimentally explores how people perceive the content they find on such sites. Data and projects used in this thesis come from a diversity of sources including Wikipedia, the President’s SAVE award ideation contest (facilitated through the IdeaScale ideation platform), and the MIT Climate CoLab.
Dynamic parameters of structures extracted from ambient vibration measurements: an aid for the seismic vulnerability assessment of existing buildings in moderate seismic hazard regions
Creators: name: Michel, Clotaire
name: Guéguen, Philippe
name: Bard, Pierre-Yves
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: During the past two decades, the use of ambient vibrations for modal analysis of structures has increased as compared to the traditional techniques (forced vibrations). The Frequency Domain Decomposition method is nowadays widely used in modal analysis because of its accuracy and simplicity. In this paper, we first present the physical meaning of the FDD method to estimate the modal parameters. We discuss then the process used for the evaluation of the building stiffness deduced from the modal shapes. The models considered here are 1D lumped-mass beams and especially the shear beam. The analytical solution of the equations of motion makes it possible to simulate the motion due to a weak to moderate earthquake and then the inter-storey drift knowing only the modal parameters (modal model). This process is finally applied to a 9-storey reinforced concrete (RC) dwelling in Grenoble (France). We successfully compared the building motion for an artificial ground motion deduced from the model estimated using ambient vibrations and recorded in the building. The stiffness of each storey and the inter-storey drift were also calculated.
Entanglement Swapping for Generation of Heralded Time-Frequency-Entangled Photon Pairs
Creators: name: Vitullo, Dashiell L. P.
name: Raymer, M. G.
name: Smith, B. J.
name: Karpiński, Michał
name: Mejling, L.
name: Rottwitt, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Photonic time-frequency entanglement is a promising resource for quantum information processing technologies. We investigate swapping of continuous-variable entanglement in the time-frequency degree of freedom using three-wave mixing in the low-gain regime with the aim of producing heralded biphoton states with high purity and low multi-pair probability. Heralding is achieved by combining one photon from each of two biphoton sources via sum-frequency generation to create a herald photon. We present a realistic model with pulsed pumps, investigate the effects of resolving the frequency of the herald photon, and find that frequency-resolving measurement of the herald photon is necessary to produce high-purity biphotons. We also find a trade-off between the rate of successful entanglement swapping and both the purity and quantified entanglement resource (negativity) of the heralded biphoton state.
description: 17 pages and 9 figures. Version 3 corrects an error in the count rate theory and calculations, fixes a few grammatical and typographical errors, improves formatting, and adds the journal reference
Malaysia’s Policy Responses to the Panic of 1997: An Islamic Perspective
Creators: name: Shahar, Mazatul
Publisher: name: University of East London
Year: 2021

description: This thesis explores the rationale behind the decisions of the Malaysian policymakers in response to the Panic of 1997, as Malaysia is the only country that had rejected the Washington Consensus while the rest of the crisis-affected countries pursued the orthodox policies. The thesis is to investigate whether the reasons behind the policy responses were due to adhering to the underlying principles of Shariah or mere political pragmatism. Identified by the World Bank as a newly industrialising economy (NIE), Malaysia symbolises a developing country with an impressive growth rate in the last thirty years prior to the Panic of 1997. The transformation to a rapid economic growth in the 1980s and 1990s resulted from a change of policies regarding social and economic development. It was a widespread perception that the reason for Malaysia’s rejection of IMF’s involvement was primarily due to prevent any intervention in its existing social affirmative action policy known as the New Economic Policy (NEP). Concurrently, Prime Minister Mahathir’s strong advocation towards the Islamisation policy had also made a significant impact in the development of Malaysia’s policy framework. The Washington Consensus via the IMF delegitimised the prevailing economic system in Southeast Asia by blaming the structural deficiencies in the financial and corporate sectors of the countries as the root cause of the Panic of 1997. The IMF believed that the Washington Consensus presents a model for institutional transformation. However, Malaysia had adopted the unorthodox capital control policy as a policy response, while the rest of the crisis-affected countries had accepted the Washington Consensus. The thesis adopts a historical institutional analysis in explaining the significance of the Islamisation policy and the importance of upholding the NEP and the likely impact of its reversal or revocation.
Diversifying Catalysts, Monomers, Cross-Coupling Strategies and functional Groups in the Controlled Synthesis of Conjugated Polymers
Creators: name: Yunyan  Qiu
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The ability to precisely incorporate monomers into polymeric materials grants polymer chemists access to a variety of complex architectures. These materials are commonly prepared by living chain-growth polymerization techniques which have revolutionized the field of polymer synthesis. Catalyst-transfer polycondensation (CTP) is one of those chain-growth methods to afford well-defined conjugated polymers. Serving as active components in most of optoelectronic devices, conjugated polymers prepared by CTP exhibit improved device performance due to uniform polymeric structures. Some promising features CTP can provide include control over size and microstructure, good chain end fidelity and the construction of sophisticated polymeric frameworks with functionality. The frontier of CTP research now focuses on (a) understanding the exact mechanism, (b) monomer scope expansion by rational design of catalysts and conjugated monomers, and (c) obtaining conjugated materials with structural diversity. This dissertation details some of our endeavor towards diversifying the choice of catalysts, monomers, cross-coupling reactions and functional groups available in CTP process.
Was ist aus der berühmten Teichbodenflora der Stuttgarter Wildparkseen geworden?
Creators: name: Seybold, Rainer
name: Seybold, Siegmund
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2021

description: Das letzte Auftreten der Teichbodenflora der Parkseen bei Stuttgart in den 1950er Jahren wird mit Vegetationsaufnahmen dokumentiert. Die Verfasser schlagen eine gelegentliche Senkung des Wasserspiegels vor, um der Gesellschaft ein Wiederauftreten zu ermöglichen.
description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 168 (2012): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 168. Jahrgang
title: re:search : das Forschungsmagazin, Ausgabe 1, Februar 2018
title: fragen, forschen, lösen : searching for solutions
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Hochschule Reutlingen
Year: 2018
Subjects: subject: 370 Erziehung, Schul- und Bildungswesen

description: Vom 3D-Druck über Tumorzellen bis hin zur Energieversorgung - die erste Ausgabe des Forschungsmagazins re:search gibt einen Überblick über die Forschungsthemen der Hochschule Reutlingen. Ein Schwerpunkt der Ausgabe ist die Energiewende, an der die Mitglieder des Reutlinger Energiezentrums mit Hochdruck forschen. Über die Herausforderungen für Netzbetreiber und die Zukunft der Energiemärkte haben wir mit Klaus Saiger gesprochen, Geschäftsführer der Reutlinger FairNetz GmbH. Professor Alexander Sauer, Leiter des Instituts für Energieeffizienz in der Produktion an der Universität Stuttgart und Professor Stefan Tenbohlen, Leiter des Instituts für Energieübertragung und Hochspannungstechnik, haben mögliche Lösungswege für uns skizziert.
Performance of the First 150 mm Diameter Cryogenic Silicon Ionization Detectors with Contact-Free Electrodes
Creators: name: Mast, N.
name: Kennedy, A.
name: Chagani, H.
name: Codoluto, D.
name: Fritts, M.
name: Harris, R.
name: Jastram, A.
name: Mahapatra, R.
name: Mandic, V.
name: Mirabolfathi, N.
name: Platt, M.
name: Strandberg, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Cryogenic semiconductor detectors operated at temperatures below 100 mK are commonly used in particle physics experiments searching for dark matter. The largest such germanium and silicon detectors, with diameters of 100 mm and thickness of 33 mm, are planned for use by the Super Cryogenic Dark Matter Search (SuperCDMS) experiment at SNOLAB, Canada. In order to scale up the sensitive mass of future experiments, larger individual detectors are being investigated. We present here the first results of testing two prototype 150 mm diameter silicon ionization detectors. The detectors are 25 mm and 33 mm thick with masses 1.7 and 2.2 times larger than those currently planned for SuperCDMS. These devices were operated with contact-free bias electrodes to minimize leakage currents which currently limit operation at high bias voltages. One detector was instrumented to read out ionization signals using a single contact-free readout electrode and the other with an array of electrodes patterned on the crystal surface. The results show promise for the use of both large volume silicon detectors and contact-free electrode arrangements for scaling up solid state cryogenic detector mass and bias voltage.
description: 18 pages, 11 figures
Spin fluctuations and black hole singularities: the onset of quantum gravity is spacelike
Creators: name: Bianchi, Eugenio
name: Haggard, Hal M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Due to quantum fluctuations, a black hole of mass $M$ represents an average over an ensemble of black hole geometries with angular momentum. This observation is apparently at odds with the fact that the curvature singularity inside a rotating black hole is timelike, while the one inside a non-rotating black hole is spacelike. Is the average of timelike singularities really spacelike? We use the Bekenstein-Hawking entropy formula to introduce a microcanonical ensemble for spin fluctuations and show that the onset of quantum gravity is always spacelike. We discuss the impact of this result on singularity resolution in quantum gravity and hint at the possibility of an observational test.
description: 10 pages, 2 figures, extended to include a new derivation and more discussion
Bericht der Gesellschaft für Naturkunde in Württemberg 2013
Creators: name: Schriftleitung Der Gesellschaft Für Naturkunde In Württemberg
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
DSpace-Clustering via Puppet, HAProxy and CephFS
Creators: name: Nicklas, Bernd
name: Münch, Paul
Publisher: name: Zenodo
Year: 2019
Subjects: DSpace
Clustering
Puppet
HAProxy
CephFS

description: Running a DSpace repository in a single all-in-one installation is limited both in hardware-resources and in maintainability. Therefore the Philipps-University Marburg implemented a DSpace clustering solution based on an in-house devel- oped Puppet module, a slightly modified DSpace installation process, HAProxy and CephFS which allows for customization, horizontal scaling, better perfor- mance and higher availability. The presentation features the short-comings of all-in-one installations, the benefits and also the problems of clustering.
Photoproduction of neutral kaons on the liquid deuterium target in the threshold region
Creators: name: Tsukada, K.
name: Takahashi, T.
name: Watanabe, T.
name: Fujii, Y.
name: Futatsukawa, K.
name: Hashimoto, O.
name: Hirose, K.
name: Ito, K.
name: Kameoka, S.
name: Kanda, H.
name: Maeda, K.
name: Matsumura, A.
name: Miura, Y.
name: Miyase, H.
name: Nakamura, S. N.
name: Nomura, H.
name: Nonaka, K.
name: Osaka, T.
name: Okayasu, Y.
name: Tamura, H.
name: Tsubota, H.
name: Ukai, M.
name: Yamauchi, H.
name: Wakamatsu, M.
name: Ishikawa, T.
name: Kinoshita, T.
name: Miyahara, F.
name: Nakabayashi, T.
name: Shimizu, H.
name: Tamae, T.
name: Yamazaki, H.
name: Sasaki, A.
name: Konno, O.
name: Bydzovsky, P.
name: Sotona, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The photoproduction process of neutral kaons on a liquid deuterium target is investigated near the threshold region, Egamma = 0.8-1.1 GeV. K0 events are reconstructed from positive and negative pions, and differential cross sections are derived. Experimental momentum spectra are compared with those calculated in the spectator model using a realistic deuteron wave function. Elementary amplitudes as given by recent isobar models and a simple phenomenological model are used to study the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(gamma,K0)Lambda process, which provides additional constraints on current models of kaon photoproduction. The present study demonstrates that the n(gamma,K0)Lambda reaction can provide key information on the mechanism of the photoproduction of strangeness.
description: 11 pages, 13 figures
Nachruf Bernhard Ziegler (1929–2013)
Creators: name: Urlichs, Max
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
Notes on the gravitational, electromagnetic and axion memory effects
Creators: name: Hamada, Yuta
name: Sugishita, Sotaro
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the memory effects associated with the kicks of particles. Recently, the equivalence between the memory effect and soft theorem has been established. By computing the memory effect from the radiation solutions, we explicitly confirm that, in addition to the leading piece, the subleading and subsubleading soft theorems are equivalent to the subleading and subsubleading memory effects, respectively. It is known that the memory effects can be probed by the displacements or kicks of the test particles. We point out that the these memory effects are also probed by the permanent change of the direction of the spin. We also show that the axion memory effect, recently proposed by the current authors, can be detected as the change of the spin of the test particle. We discuss that if we consider the magnetic monopole as an external particle, the parity-odd electromagnetic memory appears.
description: 19 pages, published version
LillOA : try before you buy!
Creators: name: Géroudet, Marie-Madeleine
Publisher: name: Zenodo
Year: 2019
Subjects: UX Design
researcher's needs
data integration

description: In 2019, the University of Lille is ready to launch LillOA, an open archive connected to the French national Archive HAL and based upon D-Space technology. From the very beginning, the LillOA project has been designed to take into account the expression of researcher's needs: the academic library has worked with 12 pilot research labs and with a user's committee to identify core features and to prioritize them. Thanks to usability tests, the team collected the feedback of researchers about the deposit system and used it to improve the design of functionalities. LillOA uses data integration to maximize the ease of use for researchers: connections with Pubmed, Crossref, the University directory and the bibliometric system of the University are associated with a batch import functionality. Researchers can retrieve their references into their personal account and easily add full text. Since LillOA is a new-born archive, the academic library still has to measure the effects of the project: however, first results show that the approach was much appreciated by researchers. They continue to get involved in the project and to give frequent and useful feedback.
Self-dual Vortices in the Generalized Abelian Higgs Model with Independent Chern-Simons Interaction
Creators: name: Kim, Chanju
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Self-dual vortex solutions are studied in detail in the generalized abelian Higgs model with independent Chern-Simons interaction. For special choices of couplings, it reduces to a Maxwell-Higgs model with two scalar fields, a Chern-Simons-Higgs model with two scalar fields, or other new models. We investigate the properties of the static solutions and perform detailed numerical analyses. For the Chern-Simons-Higgs model with two scalar fields in an asymmetric phase, we prove the existence of multisoliton solutions which can be viewed as hybrids of Chern-Simons vortices and $CP^1$ lumps. We also discuss solutions in a symmetric phase with the help of the corresponding exact solutions in its nonrelativistic limit. The model interpolating all three models---Maxwell-Higgs, Chern-Simons-Higgs, and $CP^1$ models--- is discussed briefly. Finally we study the possibility of vortex solutions with half-integer vorticity in the special case of the model. Numerical results are negative.
description: 32 pages, LATEX, SNUTP 92-79
Charged Scalar Particles and $τ$ Leptonic Decay
Creators: name: Tao, Zhijian
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Charged scalar particles introduced in some extensions of the standard model can induce $τ$ leptonic decay at tree level. We find that with some charged SU(2)-singlet scalar particles, like ones introduced in Zee-type models, $τ$ leptonic decay width is always smaller than what is predicted by the standard model, therefore they may offer a natural solution to $τ$ decay puzzle. To be more specific, we examine some Zee-type models in detail to see if at the same time they are acceptable in particle physics, cosmology and astrophysics. It is shown that $τ$ decay data do put some constrains on these models.
description: ICTP Report No. IC/93/31, 12 pages, Latex, one figure is not included, it is available upon demand
Nachruf Franz Zauner (1931–2013)
Creators: name: Kull, Ulrich
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
Hoy los ancestros vuelven a la tierra : caracterización y documentación para la conservación de un fardo funerario de los Andes orientales de Colombia
Creators: name: Jaimes Baquero, Ana María
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Arquitectura - Conservación y restauración
subject: Restos humanos - Arqueología
subject: Restos arqueológicos - Conservación y restauración
subject: Momificación
subject: Conservación y restauración
subject: Documentación
subject: Conservación arqueológica
subject: Andes orientales

description: La conservación y restauración del patrimonio cultural se ha centrado en comprender los materiales y sus deterioros para preservar objetos de valor irremplazable para la sociedad. Esta disciplina emplea análisis y evaluaciones para determinar acciones que garanticen la salvaguarda del patrimonio, como la restauración de material arqueológico, respaldada por la legislación colombiana. Aunque se ha colaborado con la arqueología para entender diferentes materiales, como cerámica, metales y textiles, los cuerpos momificados han recibido menos atención. A lo largo de la historia, han sido víctimas de saqueo y prácticas inadecuadas, limitando el conocimiento sobre sociedades pasadas. El proyecto propuesto busca estudiar un fardo funerario de los Andes colombianos para comprender su materialidad y deterioro, con el fin de generar una guía para su conservación y documentación adecuadas. El trabajo se estructura en antecedentes, marco teórico, metodología, resultados y conclusiones, destacando la necesidad de un enfoque más detallado en la conservación de este tipo de patrimonio arqueológico en Colombia.
description: The conservation and restoration of cultural heritage has focused on understanding materials and their deterioration to preserve objects of irreplaceable value to society. This discipline employs analysis and evaluations to determine actions that ensure the safeguarding of heritage, such as the restoration of archaeological material, supported by Colombian legislation. Although collaboration with archaeology has been undertaken to understand different materials such as ceramics, metals, and textiles, mummified bodies have received less attention. Throughout history, they have been victims of looting and inadequate practices, limiting knowledge about past societies. The proposed project aims to study a funerary bundle from the Colombian Andes to understand its materiality and deterioration, in order to generate a guide for its proper conservation and documentation. The work is structured into background, theoretical framework, methodology, results, and conclusions, highlighting the need for a more detailed approach to the conservation of this type of archaeological heritage in Colombia.
Nachruf Klaus Schall (1929–2010)
Creators: name: Kull, Ulrich
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
Nachruf Inge Fabian (1910–2006)
Creators: name: Kull, Ulrich
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
Nachruf Heidrun Distelbarth (1945–2013)
Creators: name: Kull, Ulrich
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang
Belastung des Bodensees mit organischen Spurenstoffen – Bestimmung von polychlorierten Biphenylen und polybromierten Diphenylethern in Sedimenten, Muscheln und Fischen
Creators: name: Pfeiffer, Jörg A.
Publisher: name: Jahreshefte der Gesellschaft für Naturkunde in Württemberg
Year: 2013

description: Typische Vertreter von problematischen Verunreinigungen sind polychlorierte Biphenyle (PCB), die aufgrund ihrer toxischen Eigenschaften bereits vor über 20 Jahren verboten wurden. Eine mit den PCB strukturell verwandte Klasse, die polybromierten Diphenylether (PBDE), wurde seit den 1970er Jahren als Flammschutzmittel eingesetzt. Für verschiedene PBDE wurden zum Teil stark ansteigende Umweltkonzentrationen über die letzten Jahrzehnte beobachtet. Im Rahmen dieser Arbeit wurden die Konzentrationen ausgewählter Kongenere von PBDE und PCB in Brachsen (Abramis brama), Dreikantmuscheln (Dreissena polymorpha) und Sedimentproben des Bodensees bestimmt. Ziel der Arbeit war es unter anderem, damit Aussagen über den potenziellen Übergang vom Sediment in Biota zu bekommen. Folgende Auffälligkeiten ergaben die Untersuchungen: Nur die PCB-Konzentrationen waren in den oberen, jüngeren Schichten niedriger als in den tieferen, was den Trend zu abnehmenden Umweltkonzentrationen dokumentiert. Die relativen Konzentrationen der Einzel-PCB zueinander zeigten Übereinstimmung mit der technischen PCB-Mischung „Chlophen-A60“. Bei Fischen ergaben sich Hinweise auf eine isomerenspezifische Aufnahme oder den spezifischen Abbau bestimmter PBDE-Kongenere. Das Fischalter bzw. die Fischlänge war in keiner eindeutigen Weise mit den gefundenen Konzentrationen korrelierbar – vielmehr zeigte sich eine Überlagerung mit dem allgemeinen stagnierenden oder leicht abnehmenden Trend in der Umwelt. Die in den Filets der Brachsen gefundenen maximalen PCB-Konzentrationen liegen deutlich unterhalb der gesetzlich festgelegten Richtwerte. Die entsprechenden PBDE-Konzentrationen, für die es keine Richtwerte gibt, liegen im Vergleich zu den PCB-Konzentrationen um ca. eine Größenordnung (1:4 – 1:20) niedriger. Die Konzentrationen bewegen sich in Bereichen wie sie in alpinen Bergseen vorkommen, die als wenig belastet gelten.
description: Jahreshefte der Gesellschaft für Naturkunde in Württemberg, Bd. 169 (2013): Jahreshefte der Gesellschaft für Naturkunde in Württemberg, 169. Jahrgang