22,726 research outputs found
El diario de Priscilla Scott-Ellis: enfermera en tiempo de guerra
No full textIntroduction:The use of letters, diaries and other sort of personal documents in historical research is a common andsolidly accepted practice among historians.Objective: To study the development of nursing in Spain during the Civil War, within the national zone, through the analysis the diary of Priscilla Scott-Ellis, as well as to analyse Priscilla's extraordinary personality within her personal-historical context.Methodology: A qualitative-descriptive research method was adopted, which facilitated the discovering, selection and classification of historical data, whose interpretation will help to enlighten the history of war nursing during the Spanish Civil War.Results: The information obtained though the analysis of the diary was classified within two main categories: a) Data related to the study of war nursing during the Spanish Civil War, and b) data concerning the life of Priscilla Scott-Ellis in Spain, both in the front and in the rearguard. In addition, a number of specific subcategories were established in order to assist the process of data codification and interpretation.Conclusions: The diary of Priscilla Scott-Ellis, edited by Raymond Carr, constitutes a valuable source of information on war nursing in Spain during the Civil War, revealing the exceptional personality of its young author
Plasma wakefield acceleration experiments at FACET
Get PDFFACET-Facilities for Accelerator science and Experimental Test beams at SLAC-will provide high-energy-density electron and positron beams with peak currents of roughly 20 kA that will be focused down to a 10 μm × 10μm transverse spot size at an energy of ∼23 GeV. With FACET, the SLAC linac will support a unique program concentrating on second-generation research in plasma wakefield acceleration. Topics include high-gradient electron acceleration with a narrow energy spread and preserved emittance, beam loading and high-gradient positron acceleration. This paper describes the FACET facility, summarizes the state of the art for plasma wakefield accelerators and discusses the plasma wakefield accelerator program to be conducted at FACET over the next five years. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
CE Challenges: Work to Do
No full textCE has been used for more than two decades now. Despite many successes and advantages, there are still many challenges to be addressed. These challenges are both technical and organisational. In the paper we will address the current challenges of CE. Many challenges are related to the exchange of data and knowledge and to the systems that make data and knowledge exchange possible. Although much progress has been made in enabling extensive data and knowledge exchange and use, much remains to be wished. For example, there are still barriers to data exchange. Technically, these barriers may consist of different formats, differences in infrastructures and systems, and different semantics. There are also organisational and political barriers. For example, investment in information system may heavily impact upstream suppliers, while revenues of better information exchange may predominantly be gained by downstream actors. Without sharing costs and revenues, chain-wide information exchange will not be easily realised. Another barrier is the possible lack of willingness to share information, because of potential misuse of knowledge and loss of power. The paper is organised as follows. First we will describe the current manifestation of CE as described in a recent book. Second, we will list current trends in CE. Third, we will present some Critical Success Factors (CSFs) that are considered relevant for implementing and adapting CE practices. Last, we indicate some research and practical questions to be addressed, especially for areas that have a high potential and actual impact. </p
Defining mental disorder. Jerome Wakefield and his critics
No full textInternational audiencePhilosophers discuss Jerome Wakefield's influential view of mental disorder as “harmful dysfunction,” with detailed responses from Wakefield himself.One of the most pressing theoretical problems of psychiatry is the definition of mental disorder. Jerome Wakefield's proposal that mental disorder is “harmful dysfunction” has been both influential and widely debated; philosophers have been notably skeptical about it. This volume provides the first book-length collection of responses by philosophers to Wakefield's harmful dysfunction analysis (HDA), offering a survey of philosophical critiques as well as extensive and detailed replies by Wakefield himself.HDA is offered as a definition of mental disorder, but it is also the outcome of a method—conceptual analysis—and contributors first take up HDA's methodology, considering such topics as HDA's influences on the DSM, empirical support for HDA, and clinical practice. They go on to discuss HDA's ultimate goal, the demarcation between normal and abnormal; the dysfunction component of the analysis, addressing issues that include developmental plasticity, autism and neurodiversity, and the science of salience; and the harmful component, examining harmless dysfunction, normal variation, medicalization, and other questions. Wakefield offers substantive responses to each chapter.Proposée par Jerome Wakefield, la définition du trouble mental comme « dysfonctionnement préjudiciable » est au cœur des débats internationaux en philosophie de la psychiatrie depuis 30 ans. La conception mixte de Wakefield a pour particularité de proposer une alternative aussi bien aux conceptions purement naturalistes de la maladie mentale qu’à des conceptions opposées, inspirées par le constructivisme social ou le nihilisme antipsychiatrique. Elle entend poser une limite à la médicalisation des problèmes de vie et à l’inflation des catégories psychiatriques. Mais si on parle de « dysfonctionnement préjudiciable », comment identifier ce qui dysfonctionne et comment déterminer à partir de quand ? De quel « préjudice », évalué comment, et par qui, s’agit-il ? Quelle peut être la portée d’une définition de ce type, dans quel contexte at-t-elle été proposée, quelle est son utilité pour la psychiatrie ? Cet ouvrage collectif offre une présentation de la position de Wakefield et de son usage de l’analyse conceptuelle, un ensemble de discussions critiques, ainsi que les réponses détaillées de Wakefield lui-même à chacun des chapitres des contributeurs. Il se présente donc comme un panorama des discussions qui sont au cœur de la philosophie de la psychiatrie d’aujourd’hui
Synthesis optimization and charge carrier transfer mechanism in LiLuSiO<sub>4</sub>:Ce, Tm storage phosphor
No full textLiLuSiO4:Ce and LiLuSiO4:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu2+ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration, nonstoichiometry and codoping with Ca, Hf, Al and Ge are reported. Based on the results of the synthesis optimization, thermoluminescence (TL) emission and TL excitation spectra a mechanism of charge carrier transfer, storage, and recombination during irradiation and thermal or optical readout is proposed.Accepted Author ManuscriptRST/Fundamental Aspects of Materials and EnergyRST/Luminescence Material
The impact of P(NDI2OD-T2) crystalline domains on the open-circuit voltage of bilayer all-polymer solar cells with an inverted configuration
Get PDFWe fabricated P(NDI2OD-T2)/PTB7 bilayer all-polymer solar cells with an inverted configuration, where the annealing temperature was systematically varied. The current density-voltage behavior was investigated and the structural properties of the P(NDI2OD-T2) layers were characterized. Absorption spectroscopy, surface morphology, and crystallite analysis showed that increasing phase segregation of P(NDI2OD-T2) films occurred as the annealing temperature increased. We found that, as the P(NDI2OD-T2) stacking improved, with larger domains, the open-circuit voltage decreased and the saturation dark current density increased. This work provides a guide for the processing of P(NDI2OD-T2) layers to maximize the power conversion efficiency of all-polymer solar cells. (C) 2015 Author(s).open1186sciescopu
Data and code for: Variational Graph Author Topic Modeling
No full textThis is the tensorflow implementation of KDD-2022 paper "Variational Graph Author Topic Modeling" by Delvin Ce Zhang and Hady W. Lauw.
VGATM is a Graph Neural Network model that extracts interpretable topics for documents with authors and venues. Topics of documents then fulfill document classification, citation prediction, etc.
</p
Updated analytical solutions of continuity equation for electron beams precipitation – I. Pure collisional and pure ohmic energy losses
Get PDFWe present updated analytical solutions of continuity equations for power-law beam electrons precipitating in (a) purely collisional losses and (b) purely ohmic losses. The solutions of continuity equation (CE) normalized on electron density presented in Dobranskis & Zharkova are found by method of characteristics eliminating a mistake in the density characteristic pointed out by Emslie et al. The corrected electron beam differential densities (DD) for collisions are shown to have energy spectra with the index of −(γ + 1)/2, coinciding with the one derived from the inverse problem solution by Brown, while being lower by 1/2 than the index of −γ/2 obtained from CE for electron flux. This leads to a decrease of the index of mean electron spectra from −(γ − 2.5) (CE for flux) to −(γ − 2.0) (CE for electron density). The similar method is applied to CE for electrons precipitating in electric field induced by the beam itself. For the first time, the electron energy spectra are calculated for both constant and variable electric fields by using CE for electron density. We derive electron DD for precipitating electrons (moving towards the photosphere, μ = +1) and ‘returning’ electrons (moving towards the corona, μ = −1). The indices of DD energy spectra are reduced from −γ − 1 (CE for flux) to −γ (CE for electron density). While the index of mean electron spectra is increased by 0.5, from −γ + 0.5 (CE for flux) to −γ + 1(CE for electron density). Hard X-ray intensities are also calculated for relativistic cross-section for the updated differential spectra revealing closer resemblance to numerical Fokker–Planck (FP) solutions
Chapitre XI. Le Joyeux Garde-fourrière de Wakefield
No full textIntroduction Le lecteur attentif aura remarqué que les ballades post-médiévales sont toutes plus ou moins basées sur le même motif, à savoir la rencontre de Robin avec un étranger qu’il défie, avant d’être vaincu et de l’inviter à rejoindre le rang de ses joyeux compagnons. Cela a été le cas avec Petit Jean, Belle Marianne, Le Frère troussé, et Le Joyeux Garde-fourrière de Wakefield ne fait évidemment pas exception à la règle. Cependant, ce dernier récit est l’un des plus anciens de cette sér..
Introduction and Author Biographical Notes
No full textThe Introductory Notes include The Cutting EDge\u27s mission statement, editorial board, founder\u27s note, and author\u27s biographies
- …
