cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Weyl covariance, second clock effect and proper time in theories of symmetric teleparallel gravity
Creators: name: Pala, Caglar
name: Sert, Ozcan
name: Adak, Muzaffer
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Just after Weyl's paper (Weyl in Gravitation und Elektrizität, Sitzungsber. Preuss. Akad., Berlin, 1918) Einstein claimed that a gravity model written in a spacetime geometry with non-metricity suffers from a phenomenon, the so-called second clock effect. We give a new prescription of parallel transport of a vector tangent to a curve which is invariant under both of local general coordinate and Weyl transformations in order to remove that effect. Thus since the length of tangent vector does not change during parallel transport along a closed curve in spacetimes with non-metricity, a second clock effect does not appear in general, not only for the integrable Weyl spacetime. We have specially motivated the problem from the point of view of symmetric teleparallel (or Minkowski-Weyl) geometry. We also conclude that if nature respects Lorentz symmetry and Weyl symmetry, then the simplest geometry in which one can develop consistently alternative gravity models is the symmetric teleparallel geometry; $Q_{μν}\neq 0, \; T^μ=0, \; R^μ_ν=0$. Accordingly we discuss the proper time, the orbit equation of a spinless test body and the Lagrangian for symmetric teleparallel gravity.
description: To appear in EPJC
(AgxCu1-X)2ZnSnS4 Thin-Films Prepared by Spray Pyrolysis
Creators: name: Dermenji, L.
name: Gurieva, G.
name: Guc, M.
name: Levcenko, S.
name: Curmei, N.
name: Bruc, L.
name: Sherban, D.A.
name: Simashkevich, A.V.
name: Schorr, S.
name: Arushanov, E.
Publisher: name: WIP
Year: 2017
Subjects: Thin Film Photovoltaics
CI(G)S, CdTe and Related Thin Film Solar Cells and Modules

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 1074-1076
description: One of the most detrimental problems in the further development of thin film solar cells based on
kesterite type compound semiconductors is the limitation in open circuit voltage (VOC). The latter, according to many
theoretical and experimental studies, is mostly related to the high concentration of intrinsic defects, mainly with ZnCu
antisites. Recently, a way for overcoming this problem by partial substitution of Cu cations by Ag was proposed. This
may lead to a strong decrease of intrinsic defects due to higher formation energy of ZnAg defects and as result to
increase of VOC. Taking this into account, we performed an investigation of (AgxCu1-x)2ZnSnS4 thin films deposited
by the spray pyrolysis method. The as-deposited thin films with 10, 15 and 20 % of Ag were annealed at 450 °C for
60 min in presence of elemental sulfur. Structural investigations by XRD, as well as Raman spectroscopy studies
confirmed the formation of solid solutions. Photoluminescence investigations showed one broad band, which exhibits
the blue shift with the increase of Ag concentration. This could be explained by changes in the activation energy of
the defect levels involved in radiative transition rather than with the band gap change.
Identification of Trap States in Hybrid Organic/Inorganic Perovskites
Creators: name: Gordillo, G.
name: Otálora, C.A.
name: Romero, E.
name: Ramírez, A.A.
Publisher: name: WIP
Year: 2017
Subjects: Thin Film Photovoltaics
Perovskite, Organic and Dye-Sensitised Devices

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 1137-1140
description: This paper presents results of a study that allowed identifying states of traps in thin films of organolead halide
perovskites (CH3NH3PbI3) prepared by spin-coating, through thermally Stimulated Current (TSC) measurements.
Special emphasis was done in studying the influence of superficial absorption of oxygen from the environment on the
depth of traps and on the density of states associated with trapping centers.Deconvolution of the TSC curves obtained
from measurements made at a pressure of 200 mBarrevealed the presence of three traps centers located at 0,124,
0,519 and 1,42 eV above the valence band, while in samples exposed to an environment of 2 mBar were identified
only two traps centers located at 0.179 and 0,495 eV.
The $M_d$-Approximation Property and Unitarisability
Creators: name: Vergara, Ignacio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: We define a strengthening of the Haagerup-Kraus approximation property by means of the subalgebras of Herz-Schur multipliers $M_d(G)$ ($d\geq 2$) introduced by Pisier. We show that unitarisable groups satisfying this property for all $d\geq 2$ are amenable. Moreover, we show that groups acting properly on finite-dimensional CAT(0) cube complexes satisfy $M_d$-AP for all $d\geq 2$. We also give examples of non-weakly amenable groups satisfying $M_d$-AP for all $d\geq 2$.
description: 10 pages. Minor changes. Accepted for publication in Proceedings of the American Mathematical Society
Makarov's principle for the Bloch unit ball
Creators: name: Ivrii, Oleg
name: Kayumov, Ilgiz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30H30, 30C35

description: Makarov's principle relates three characteristics of Bloch functions that resemble the variance of a Gaussian: asymptotic variance, the constant in Makarov's law of iterated logarithm and the second derivative of the integral means spectrum at the origin. While these quantities need not be equal in general, we show that the universal bounds agree if we take the supremum over the Bloch unit ball. For the supremum (of either of these quantities), we give the estimate $Σ^2_{\mathcal B} < \min(0.9, Σ^2)$, where $Σ^2$ is the analogous quantity associated to the unit ball in the $L^\infty$ norm on the Bloch space. This improves on the upper bound in Pommerenke's estimate $0.685^2 < Σ^2_{\mathcal B} \le 1$.
description: 19 pages
title: Narrativer Nomadismus
title: Raum und Wissen bei Herodot (im Anschluss an Deleuze)
titleType: Subtitle
Creators: name: Wendt, Daniel
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Nomadimus
subject: Rhizom
subject: Bewegung
subject: Kartographie des Wissens
subject: performative Geschichte
subject: Barbaren
subject: kollektives und persönliches Wissen.
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: In ihrer Abhandlung über Nomadologie in Tausend Plateaus (1980) entwickeln Gilles Deleuze und Félix Guattari Nomadismus als raumtheoretisches und epistemologisches Konzept. Die ‚nomadische Wissenschaft‘ bietet einen ereignisorientierten Zugang zum Wissen über ein anderes Verhältnis zum Raum und setzt sich so der steten Reproduktion eines stereotypen Diskurses entgegen. Der Beitrag überführt die Nomadologie in narratologische Fragestellungen und analysiert programmatische Passagen aus Herodots Historien in Hinsicht auf die Verbindung von Raum, Wissen und Text. Von besonderer Bedeutung sind in Herodots verstreuten methodischen Aussagen Verben des Gehens, Sehens und Hörens. Herodot inszeniert seine Forschungen als virtuelle Reise durch verschiedene Wissensräume. Er präsentiert, so die These des Beitrags, seine Methodik (im Gegensatz zur epischen Lehrdichtung) als nomadischen Weg, was sowohl narrativ als auch epistemisch zu einer Kartographie des Wissens führt. Nicht zuletzt durch die Kategorie des persönlichen Wissens schafft Herodot schließlich eine performative Geschichtsschreibung.
description: In the Treatise on Nomadology in Thousand Plateaus (1980) Gilles Deleuze and Félix Guattari develop nomadism as a spacial and epistemological concept. ‘Nomadic science,’ they say, offers an event orientated access to knowledge through another relation to space and thus resists to the reproduction of stereotype discourses. The paper transfers nomadology to narratological questions and analyses some programmatic passages from Herodotus’ histories regarding the connection of space, knowledge and text. Verbs of going, seeing and hearing are of great significance within these scattered methodological statements. Herodotus stages his research as virtual journey through different places of knowledge. He presents, I would argue, his own method as a nomadic track (in contrast to didactic poetry). This leads to a different narrative and epistemic approach, towards a cartography of knowledge. Finally, by introducing the category of personal knowledge Herodotus creates a performative historiography.
Can autonomy make bicycle-sharing systems more sustainable? Environmental impact analysis of an emerging mobility technology
Creators: name: Sanchez, Naroa Coretti
name: Pastor, Luis Alonso
name: Larson, Kent
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Economics (econ.GN)
subject: Multiagent Systems (cs.MA)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Autonomous bicycles have recently been proposed as a new and more efficient approach to bicycle-sharing systems (BSS), but the corresponding environmental implications remain unresearched. Conducting environmental impact assessments at an early technological stage is critical to influencing the design and, ultimately, environmental impacts of a system. Consequently, this paper aims to assess the environmental impact of autonomous shared bikes compared with current station-based and dockless systems under different sets of modeling hypotheses and mode-shift scenarios. The results indicate that autonomy could reduce the environmental impact per passenger kilometer traveled of current station-based and dockless BSS by 33.1 % and 58.0 %. The sensitivity analysis shows that the environmental impact of autonomous shared bicycles will mainly depend on vehicle usage rates and the need for infrastructure. Finally, this study highlights the importance of targeting the mode replacement from more polluting modes, especially as traditional mobility modes decarbonize and become more efficient.
Numerical Analysis of Silicon Heterojunction Solar Cell Based on Molybdenum Oxide as a Back Surface Field (BSF)
Creators: name: Mehmood, H.
name: Nasser, H.
name: Tauqeer, T.
name: Turan, R.
Publisher: name: WIP
Year: 2017
Subjects: Silicon Photovoltaics
Characterisation & Simulation Methods

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 932-936
description: Solar cell technology based on carrier-selective contact layers has been envisaged as a prominent photovoltaic (PV) design for enhancing the efficiency of silicon heterostructure devices. Because of its higher work function, the carrier-selective layer such as Molybdenum oxide (MoOx) assists in pinning the Fermi level at the interface between crystalline silicon (c-Si) and MoOx. This enables easier extraction of charge carriers from the interface for electrical conduction, thus improving the device performance. In this paper, MoOx has been employed as a back surface field layer (BSF) of p-n junction solar cell for efficient separation of photogenerated charge carriers. The correlation of various parameters, such as MoOx work function, its thickness, and c-Si wafer doping concentration to the PV performance of the device has been demonstrated by employing Silvaco TCAD simulation. Comparative analysis has also been drawn to the reference structure based on p-a-Si:H BSF film. The simulated results exhibited an efficiency of 14.7% for MoOx-based device as compared to 13.6% for the reference solar cell. The obtained efficiency of MoOx-based devices can be boosted to ~19% by the inclusion of surface passivation layers.
title: Vergangenheit als personaler Wissensraum
title: Oder: Wie bastle ich mir meine eigenen Vergangenheiten?
titleType: Subtitle
Creators: name: Schreiber, Stefan
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Raum
subject: Wissensräume
subject: spatial turn
subject: radikaler Konstruktivismus
subject: Bastelei
subject: Öffentlichkeitsarbeit
subject: Geschichtsbild
subject: Vergangenheitskonstruktion
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: Die Archäologie produziert möglichst inhaltlich, formal und methodologisch kohärentes Wissen über die Vergangenheit. Zugleich wird dies aber in jeweils bestehende personale Wissensbestände der ‚interessierten Öffentlichkeit‘ eingepasst und von archäologischer Seite jegliche auftretenden Sinnveränderungen als Missverständnisse oder Instrumentalisierung verstanden. Der Artikel fokussiert auf die Frage, warum auf personaler Ebene verschiedene Vergangenheitsvorstellungen konkurrieren können, ohne sich entweder beständig zu widersprechen und aufzuheben oder zu einem kohärenten Vergangenheitsbild zusammengefügt zu werden. Dazu wird Vergangenheit als Wissensraum verstanden, der sich mit den Raumvorstellungen von Henri Lefebvre und David Harvey analysieren lässt. Abschließend wird versucht, sich dem vielschichtigen Konstruktionsprozess des Wissensraumes Vergangenheit durch das Konzept der Bastelei/Bricolage nach Claude Lévi-Strauss zu nähern.
description: In the field of archaeology, knowledge about the past is in many cases produced in a content, formal and methodologically coherent way. At the same time, this knowledge is trimmed into a respectively existing personal knowledge of the “general public”. From an archaeological point of view each shift of that knowledge is a result of misunderstandings or exploitation. Hence, this paper focuses on the question of how different conceptions of the past can compete on a personal level, without either contradicting and annul itself constantly in contrast to how they can assemble a coherent meaning of the past. Therefore, past is understood as a knowledge space, which can be viewed and analyzed using the concepts of space by Henri Lefebvre and David Harvey. In a last step an attempt is made to approach the complex process of constructing the past with the concept of bricolage, by Claude Lévi-Strauss.
Loops and Strings in a Superconducting Lattice Gauge Simulator
Creators: name: Brennen, G. K.
name: Pupillo, G.
name: Rico, E.
name: Stace, T. M.
name: Vodola, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an architecture for an analog quantum simulator of electromagnetism in 2+1 dimensions, based on an array of superconducting fluxonium devices. The encoding is in the integer (spin-1 representation of the quantum link model formulation of compact U(1) lattice gauge theory. We show how to engineer Gauss' law via an ancilla mediated gadget construction, and how to tune between the strongly coupled and intermediately coupled regimes. The witnesses to the existence of the predicted confining phase of the model are provided by nonlocal order parameters from Wilson loops and disorder parameters from 't Hooft strings. We show how to construct such operators in this model and how to measure them nondestructively via dispersive coupling of the fluxonium islands to a microwave cavity mode. Numerical evidence is found for the existence of the confined phase in the ground state of the simulation Hamiltonian on a ladder geometry.
description: 17 pages, 5 figures. Published version
PIKfyve Alters Dendritic Cell Function and Antitumor Immunity
Creators: name: Choi, Jae Eun
Publisher: name: My University
Year: 2022
Subjects: subject: dendritic cell
subject: tumor immunity
subject: Microbiology and Immunology
subject: Science

description: Cancer target-specific drugs have been a source of immense promise and investment in cancer therapy. Kinase inhibitors designed against key cancer-relevant proteins are continually entering clinical trials. However, the potential of these drugs has largely remained unrealized when assessing clinical outcomes. The more recent success of cancer immunotherapy prompted a surge in investigating the ability of established kinase inhibitors to enhance immunity against cancer. However, the potential impact of kinase inhibitors on tumor immune responses and their relationship with current cancer immunotherapy strategies are poorly understood. Importantly, these studies have largely overlooked the effect or contribution of dendritic cells (DCs) though they are one of the most powerful intrinsic activators of T cell responses across disease states. Methods to directly target DCs against cancer have been plagued by an inability to balance severe adverse events with lack of efficacy. Therefore, there remains a need to elucidate safe, novel methods of identifying, characterizing, and assessing the translational potential of novel DC-targeting therapeutic strategies. In this work, we describe how among clinically viable kinase inhibitor targets, PIKfyve was nominated as the most promising candidate to be associated with DCs and cure to immune checkpoint blockade (ICB) therapy. Using genetic and pharmacological methods, we discovered that PIKfyve ablation enhanced maturation and function of DCs and induced NF-kB activation preferentially through the non-canonical pathway. Both loss of Pikfyve in DCs and treatment with Apilimod, a specific PIKfyve inhibitor, slowed down tumor growth, enhanced DC-dependent T cell immunity, and potentiated ICB efficacy in multiple tumor-bearing mouse models. Moreover, both pre-treatment and on-treatment Apilimod in combination with PolyI:C, a vaccine adjuvant, reduced tumor progression in vivo. Thus, these data are the first to indicate that PIKfyve negatively controls DC function through a previously unknown mechanism of NF-kB regulation and demonstrate that PIKfyve inhibitors have potential for enhancing DC-reliant cancer immunotherapy. In summation, this thesis work represents the first comprehensive and mechanistic overview of a clinically viable kinase inhibitor target to control DC function and augment DC-dependent cancer therapies, such as ICB and vaccine therapy. More broadly, these findings illustrate the potential of investigating cancer targets to gain novel insights into fundamental DC biology and identify novel therapeutic strategies that can be applied across multiple DC-dependent disease states.
SUNet: Swin Transformer UNet for Image Denoising
Creators: name: Fan, Chi-Mao
name: Liu, Tsung-Jung
name: Liu, Kuan-Hsien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Image restoration is a challenging ill-posed problem which also has been a long-standing issue. In the past few years, the convolution neural networks (CNNs) almost dominated the computer vision and had achieved considerable success in different levels of vision tasks including image restoration. However, recently the Swin Transformer-based model also shows impressive performance, even surpasses the CNN-based methods to become the state-of-the-art on high-level vision tasks. In this paper, we proposed a restoration model called SUNet which uses the Swin Transformer layer as our basic block and then is applied to UNet architecture for image denoising. The source code and pre-trained models are available at https://github.com/FanChiMao/SUNet.
Interacting Dark Energy: Dynamical System Analysis
Creators: name: Golchin, Hanif
name: Jamali, Sara
name: Ebrahimi, Esmaeil
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the impacts of interaction between dark matter and dark energy in the context of two dark energy models, holographic and ghost dark energy. In fact, using the dynamical system analysis, we obtain the cosmological consequence of several interactions, considering all relevant component of universe, i.e. matter (Dark and luminous), radiation and dark energy. Studying the phase space for all interactions in detail, we show the existence of unstable matter dominated and stable dark energy dominated phases. We also show that linear interactions suffer from the absence of standard radiation dominated epoch. Interestingly, this failure resolved by adding the non-linear interactions to the models. We find an upper bound for the value of the coupling constant of the interaction between dark matter and dark energy as b < 0.57 in the case of holographic model, and b < 0.61 in the case of ghost dark energy model, to result in a cosmological viable matter dominated epoch. More specifically, this bound is vital to satisfy instability and deceleration of matter dominated epoch.
description: 24 pages, 6 figures, accepted in IJMPD
FAIR assessment practices: Experiences from KonsortSWD and BERD@NFDI [Poster]
Creators: name: Saldanha Bach, Janete
name: Limani, Fidan
name: Zhang, Yudong
name: Latif, Atif
name: Mathiak, Brigitte
name: Mutschke, Peter
Publisher: name: Zenodo
Year: 2023
Subjects: FAIR principles
FAIR assessment
RDA FAIR Data Maturity Model
Automated FAIR assessment tool

description: The poster presents FAIR assessment experiences in the context of the two NFDI consortia KonsortSWD and BERD@NFDI, employing the established Research Data Alliance's FAIR Data Maturity Model (RDA-FDMM) and the F-UJI Tool, an automated solution. RDA-FDMM, a manual technique, is more comprehensive, while the automated F-UJI tool effectively detects areas of improvement in metadata presentation that automated means can address. Our experiences highlight the need to examine both machine-readable as well as non-machine-readable elements and acknowledge automated tools' limitations, while valuing their insights. As the research ecosystem advances, metadata representation should be made increasingly machine-readable. We recommend a "FAIR by design" approach from the beginning to ensure alignment with FAIR principles in project outcomes. Continuous assessments during a project’s lifetime promote ongoing research data infrastructure improvements within the NFDI consortia context, contributing to NFDI infrastructure innovation and optimization.
description: KonsortSWD is funded by the German Research Foundation (DFG) within the framework of the NFDI – project number: 442494171. BERD@NFDI is funded by the German Research Foundation (DFG) within the framework of the NFDI – project number: 460037581.
AMPERE: A New Project for Innovative Heterojunction Manufacturing Solutions to Improve Competitiveness of the European PV Manufacturing Industry
Creators: name: Battaglia, A.
name: Gerardi, C.
name: Scalari, S.
name: Bizzarri, F.
name: Strahm, B.
name: Söderström, T.
name: Muñoz, D.
name: Ribeyron, P.J.
name: Izzi, M.
name: Tucci, M.
name: Delli Veneri, P.
name: Despeisse, M.
name: Perret-Aebi, L.-E.
name: Ballif, C.
name: Nielsen, O.
name: Hartlin, B.
name: Aquino, C.
name: Zink, O.
name: Melzer, B.
name: Tallián, M.
name: Lombardo, S.
name: Balucani, M.
name: Rentsch, J.
Publisher: name: WIP
Year: 2017
Subjects: Silicon Photovoltaics
Manufacturing & Production

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 947-951
description: The European PV manufacturing industry has faced strong foreign competition in the last years, which has led to a dramatic reduction of its production capacity. It has completely shifted from a massive leadership at the beginning of the new millennium, with five EU companies in the top ten manufacturers, to a situation of survival where few of them are struggling in an actual extremely competitive market. Europe still has solid industrial assets consisting of silicon & material suppliers, and high quality equipment suppliers that constitute the core of a value chain to be rebuilt.
AMPERE, acronym for Automated photovoltaic cell and Module industrial Production to regain and secure European Renewable Energy market, was born for these purposes. AMPERE project aims to the setting-up of an innovative 100 MWp/y full-scale automated pilot line at the 3SUN module PV production line delivering a power module of 380 Wp (bifacial G/G 72-cells). Soon after the end of the project a rapid scale up to 240 MWp/y is planned and a route paving the way to the GWp/y scale will deliver the roadmap to reach production capacity stated. The project will operate with the support of the technological platforms for solar cells at CEA-INES and modules at MBR, the platform for advanced module technologies at MBS along with the support of high level research institutes (CSEM, EPFL, F-ISE, ENEA, CNR) as well as key EU companies covering the whole PV value chain (Norsun, Rise technology, Jonas & Redmann, ERM). Ampere has EGP as internal end-user and with the support of the project it will target an LCOE reduction of at least 15% compared to conventional PV mc-Si technology.
title: Integrated Safety and Security by Design in the IT/OT Convergence of Industrial Cyber-Physical Systems
Creators: name: Amiri, Amirali
name: Steindl, Gernot
name: Hollerer, Siegfried
Publisher: name: TU Wien
Year: 2024
Subjects: IT/OT Convergence
Reference Architecture Model Industrie 4.0
Integrated Safety and Security by Design

description: The convergence of Information Technology (IT) and Operational Technology (OT) in Industry 4.0 presents new challenges, necessitating innovative approaches to guarantee the safe and secure execution of production processes. Consequently, the safety and security of production systems have emerged as crucial elements, given that security incidents can result in severe consequences such as production failure, equipment damage, or human injury. Previously, in a stakeholder analysis, we investigated how Austrian industrial automation stakeholders manage safety and security risks. The study, which included vendors, integrators, and asset owners, focused on secure and safe infrastructures, system architectures, and risk management. Our findings revealed limited industry awareness and usage of the Reference Architecture Model Industrie (RAMI) 4.0, emphasizing the need for an economically viable, holistic approach to integrated security and safety by design. Moreover, we introduced a comprehensive ontology for safety, security, and operation requirements in the IT/OT convergence. Building on top of these works, we introduce a model-based engineering approach to implement integrated safety and security while designing industrial Cyber-Physical Systems (CPS). We model these systems precisely using System Modeling Language (SysML) 2.0 specification and verify the requirements.
title: Raumwissen und Wissensräume. Vielfältige Figurationen eines weiten Forschungsfeldes für die Altertumswissenschaften
title: Einleitung
titleType: Subtitle
Creators: name: Hofmann, Kerstin P.
name: Schreiber, Stefan
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Raum
subject: Wissen
subject: Figurationen
subject: travelling concepts
subject: Historisierung
subject: Altertumswissenschaften
subject: Space
subject: knowledge
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: Ausgehend von der Neuperspektivierung von Raum und Wissen werden die Beziehungen zwischen Raum und Wissen beleuchtet. Hierfür wird auf den spatial turn sowie die vermeintliche Entterritorialisierung durch die Globalisierung und die praxisgeleiteten Konzeptionierung von Wissen durch die science studies eingegangen. Raum und Wissen werden dabei nicht primär als Zustand, sondern als sich gegenseitig beeinflussende Prozesse betrachtet, deren vielfältige Figurationen im Sinne von travelling concepts für die Altertumswissenschaften fruchtbar gemacht werden sollen. Im Vordergrund des Interesses stehen demnach die Produktion bzw. Genese und Transformation von Raumwissen und Wissensräumen. Zugleich werden in der Einleitung zum Tagungsband dessen zentrale Ideen, Konzepte und Fragestellungen skizziert. Die Vorstellung der neun Beiträge erfolgt thematisch gruppiert und fokussiert dabei auf 1) die Verschränkungen von Raum und Wissen, 2) die diskursiven Aushandlungen von Raumwissen sowie 3) Wissensräume als Forschungsgegenstand und Strategie zum einen im Altertum, zum anderen in der Wissenschaft und ihrer Vermittlungspraxis.
description: In this paper, inter-relations of space and knowledge are elucidated. Our perspective is strongly influenced by the so called spatial turn, the supposed de-territorialization of social and cultural life due to globalization, as well as the practice-based conceptualization of knowledge by science studies. Space and knowledge are here not regarded primarily as states, but instead as processes co-producing each other. These processes generate multiple figurations, which we understand as ‘travelling concepts’, and which we aim to make productive for the disciplines that study the ancient world. The focus of interest is consequently on the production (or genesis) and transformation of spatial knowledge and spaces of knowledge. The introduction to the conference volume sketches its central ideas, concepts and research questions. The nine papers are presented in thematic groups centered on 1) the interconnection of space and knowledge, 2) the discursive negotiation of spatial knowledge, and 3) spaces of knowledge as research topic and strategy both in the ancient world and also in sciences and humanities and their communicative practices.
Capacidad institucional de la Comisión Revisora de Medicamentos del Instituto Nacional de Vigilancia de Medicamentos y Alimentos en el procedimiento de evaluación farmacológica de medicamentos en Colombia durante el periodo 2017 a 2023
Creators: name: Gaviria Mejía, Silvia Rosa
name: Pinzón Ramos, Jorge Iván
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Administración de medicamentos - Aspectos socioeconómicos
subject: Productos para la salud - Asuntos médicos y sanitarios
subject: Farmacología - Control
subject: Capacidad institucional
subject: Comisión revisora
subject: Medicamentos
subject: INVIMA

description: Análisis de la Capacidad Institucional de la Comisión Revisora de Medicamentos del Instituto Nacional de Vigilancia de Medicamentos y Alimentos (INVIMA) en el Procedimiento de Evaluación Farmacológica de Medicamentos en Colombia Durante el Periodo 2017 a 2023. Considerando que las agencias reguladoras tienen entre sus funciones garantizar la calidad, seguridad, eficacia y efectividad de los medicamentos y productos médicos, y que para ello ejercen como misión la supervisión de la correcta elaboración, almacenamiento, distribución y administración, así como la detección y sanción de prácticas ilegales relacionadas con medicamentos, se hace necesario analizar las oportunidades de mejora de la mencionada comisión. Se concluye que la Comisión Revisora del INVIMA requiere un fortalecimiento de su capacidad institucional, tanto administrativa como política, que permita desatascar y mejorar el procedimiento de evaluación farmacológica de los medicamentos. Esto contribuirá notablemente a disminuir la crisis de desabastecimiento de los productos sanitarios que atraviesa el país, favorecerá el acceso de los pacientes a los medicamentos y, en último lugar, garantizará el derecho a la salud de la población colombiana.
description: Analysis of the Institutional Capacity of the Drug Review Commission of the National Institute for Drug and Food Surveillance (INVIMA) in the Pharmacological Evaluation Procedure of Drugs in Colombia during the Period 2017 to 2023. Considering that regulatory agencies have among their functions to guarantee the quality, safety, efficacy, and effectiveness of medicines and medical products, and to this end, their mission is to oversee the correct preparation, storage, distribution, and administration, as well as to detect and punish illegal practices related to medicines, it is necessary to analyze the opportunities for improvement of the aforementioned commission. It is concluded that INVIMA's Review Commission requires a strengthening of its institutional capacity, both administrative and political, to unblock and improve the pharmacological evaluation procedure of medicines. This will significantly contribute to reducing the crisis of medicine shortages that the country is facing, favor patients' access to medicines, and ultimately guarantee the right to health for the Colombian population.
Poisson cohomology of scalar multidimensional Dubrovin-Novikov brackets
Creators: name: Carlet, Guido
name: Casati, Matteo
name: Shadrin, Sergey
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We compute the Poisson cohomology of a scalar Poisson bracket of Dubrovin-Novikov type with $D$ independent variables. We find that the second and third cohomology groups are generically non-vanishing in $D>1$. Hence, in contrast with the $D=1$ case, the deformation theory in the multivariable case is non-trivial.
description: 23 pages. Typos corrected, add explicit form of homotopy contraction operator
High Quality Industrial Phosphorus Emitter Doping Obtained with Innovative Plasma Immersion Ion Implantation (PIII) Processes
Creators: name: Desrues, T.
name: Michel, T.
name: Lerat, J.-F.
name: Veau, A.
name: Lanterne, A.
name: Coig, M.
name: Milesi, F.
name: Mazen, F.
name: Torregrosa, F.
name: Roux, L.
name: Dubois, S.
name: Monna, R.
Publisher: name: WIP
Year: 2017
Subjects: Silicon Photovoltaics
Manufacturing & Production

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 960-962
description: We present an innovative approach for reducing the cost of industrial solar cells using Plasma Immersion Ion
Implantation (PIII). High quality PIII Phosphorus emitters were obtained on the PULSION® Solar equipment from IBS
(Ion Beam Services), capable of simultaneous and homogeneous implantation of 21 wafers (156*156mm2) in a very
short time (≈30 s). Using Phosphine (PH3) as gas precursor, various doping profiles were obtained, reaching J0e values
of 40 fA/cm² for RSheet at 110 Ω/sq. The throughput and reproducibility of the equipment have been tested with the
fabrication of ≈500 Al-BSF cells showing a very low dispersion and maximum performances above 19.3%. A 60-cells
module with an output power of 268 W has been fabricated with these solar cells, indicating the high quality of the
devices. Using PULSION® Solar, we show that PIII could be one promising solution to provide an efficient doping
technology compared to conventional approaches.
softMip
Creators: name: Meyer, Henning
Publisher: name: Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité
Year: 2006
Subjects: subject: Computertomographie
subject: Algorithmus
subject: Projektion
subject: Bildrauschen
subject: computed tomography
subject: algorithm
subject: projection
subject: image noise
subject: 610 Medizin
subject: 33 Medizin
subject: YK 8704
subject: YK 8714

description: Bisher sind in der Schnittbildgebung zwei Projektionsverfahren üblich: Die Average-Projektion, die das Bildrauschen gut unterdrückt, jedoch die Kantenschärfe verringert und die Maximum-Intensitäts-Projektion (MIP), deren Bilder sich durch eine gute Kantenschärfe auszeichnen, gleichzeitig aber ein höheres Bildrauschen aufweisen. Daher wurde in der vorliegenden Arbeit eine Synthese beider Verfahren, softMip, mit dem Ziel die jeweiligen Vorteile zu vereinen, entwickelt. In einer Phantom-Studie mit sieben verschiedenen CT-Geräten wurden das Bildrauschen und die Kantenschärfe der drei Projektionsverfahren (MIP, Average und softMip) ermittelt. Anschließend wurden die drei Verfahren in einer klinischen Studie bei der Suche nach Harnwegskonkrementen in 31 ULD-CT-Abdomenaufnahmen eingesetzt. Für jedes Projektionsverfahren wurden sowohl Anzahl, Größe und Lokalisation der Harnwegskonkremente als auch die subjektiven Kriterien Bildrauschen, Kontrast, Konturschärfe, Artefakte und Bildeindruck erhoben. softMip weist im Phantomversuch ein geringeres Bildrauschen als MIP auf (p
description: Two projection algorithms exist in the cross sectional imaging: Average projection, which features good suppression of image noise, however the edge sharpness diminishes. In maximum-intensity-projection (MIP), images show good edge sharpness, but also amplified image noise. We developed softMip, a synthesis of both algorithms which tries to unite the respective advantages. In a phantom trial on seven different CT-devices, image noise and edge sharpness of the three projection algorithms (MIP, Average and softMip) were aquired. Furthermore image quality of the transition from Average to MIP by means of softMip was compared to the image quality of alpha blending average projection and MIP. In a clinical trial we investigated softMip compared to MIP and average projection in ULDCT examinations of 31 patients with suspected calcifications in the urinary tract. For each projection algorithm amount, size and localization of the calcifications as well as the subjective criteria image noise, contrast, contour sharpness, artifacts and overall image impression were documented. softMip showed a less image noise than a MIP (p
Common Origin of $3.55$ keV X-ray line and Gauge Coupling Unification with Left-Right Dark Matter
Creators: name: Borah, Debasish
name: Dasgupta, Arnab
name: Patra, Sudhanwa
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a minimal left-right dark matter framework that can simultaneously explain the recently observed 3.55 keV X-ray line from several galaxy clusters and gauge coupling unification at high energy scale. Adopting a minimal dark matter strategy, we consider both left and right handed triplet fermionic dark matter candidates which are stable by virtue of a remnant $\mathcal{Z}_2\simeq (-1)^{B-L}$ symmetry arising after the spontaneous symmetry breaking of left-right gauge symmetry to that of the standard model. A scalar bitriplet field is incorporated whose first role is to allow radiative decay of right handed triplet dark matter into the left handed one and a photon with energy 3.55 keV. The other role this bitriplet field at TeV scale plays is to assist in achieving gauge coupling unification at a high energy scale within a non-supersymmetric $SO(10)$ model while keeping the scale of left-right gauge symmetry around the TeV corner. Apart from solving the neutrino mass problem and giving verifiable new contributions to neutrinoless double beta decay and charged lepton flavour violation, the model with TeV scale gauge bosons can also give rise to interesting collider signatures like diboson excess, dilepton plus two jets excess reported recently in the large hadron collider data.
description: Version 2: 26 pages, 8 figures, to appear in Physical Review D
Half Wavelet Attention on M-Net+ for Low-Light Image Enhancement
Creators: name: Fan, Chi-Mao
name: Liu, Tsung-Jung
name: Liu, Kuan-Hsien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Low-Light Image Enhancement is a computer vision task which intensifies the dark images to appropriate brightness. It can also be seen as an ill-posed problem in image restoration domain. With the success of deep neural networks, the convolutional neural networks surpass the traditional algorithm-based methods and become the mainstream in the computer vision area. To advance the performance of enhancement algorithms, we propose an image enhancement network (HWMNet) based on an improved hierarchical model: M-Net+. Specifically, we use a half wavelet attention block on M-Net+ to enrich the features from wavelet domain. Furthermore, our HWMNet has competitive performance results on two image enhancement datasets in terms of quantitative metrics and visual quality. The source code and pretrained model are available at https://github.com/FanChiMao/HWMNet.
Authenticity and Communication
Creators: name: Fless, Friederike
name: Graf, Bernhard
name: Dally, Ortwin
name: Franke, Ute
name: Gerbich, Christine
name: Lengyel, Dominik
name: Knaut, Matthias
name: Näser, Claudia
name: Savoy, Bénédicte
name: Steinmüller, Laura Katharina
name: Steudtner, Katharina
name: Taschner, Moritz
name: Toulouse, Catherine
name: Weber, Stefan
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: Authenticity
subject: communication
subject: actors
subject: visualization
subject: archaeological heritage
subject: conservation
subject: museum
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: Authenticity is not an absolute and constant quality inherent in an object or an experience; it is constructed in the process of research. Actors inscribe and attribute it to both material objects and subjective processes like communication and consumption. This article from the research group seeks on the one hand to reflect on the historical scope of action and action patterns among actors from various disciplines between the conflicting priorities of authentication and communication, and on the other to find ways to visualize and operationalize attribution processes through joint reflection. When we look at both history and the discussions fifty years after the Venice Charter, its idea to hand on historic monuments “in the full richness of their authenticity” has turned into an abundance of vibrant action and decision- making.
Cooperative coupling of static magnetism and bulk superconductivity in the stripe phase of La_2-xBa_xCuO_4: Pressure- and doping-dependent studies
Creators: name: Guguchia, Z.
name: Khasanov, R.
name: Shengelaya, A.
name: Pomjakushina, E.
name: Billinge, S. J. L.
name: Amato, A.
name: Morenzoni, E.
name: Keller, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Static spin-stripe order and superconductivity were systematically studied in La_2-xBa_xCuO_4 (0.11 - 0.17) at ambient pressure by means of magnetization and muSR experiments. We find that all the investigated La_2-xBa_xCuO_4 samples exhibit static spin-stripe order and that the quasi two-dimensional superconducting (SC) transition temperature T_c1 and the static spin-stripe order temperature T_so have very similar values throughout the phase diagram. Moreover, the magnetic and the SC properties of the x = 0.155 (LBCO-0.155) and x = 0.17 (LBCO-0.17) samples were studied under hydrostatic pressure. As a remarkable result, in these bulk cuprate superconductors the three-dimensional SC transition temperature T_c and T_so nearly coincide at all pressure investigated (0 - 2.3 GPa). We also observed a pressure induced transition from long-range spin stripe order to a disordered magnetic state at 1.6 GPa in LBCO-0.155, coexisting with a SC state with substantial superfluid density. In LBCO-0.17 a disordered magnetic state is present at all p. The present results indicate that static magnetic order and SC pairing correlations develop in a cooperative fashion in La_2-xBa_xCuO_4, and provide a new route of understanding the complex interplay between static magnetism and superconductivity in the stripe phase of cuprates.
description: 17 pages and 17 Figures
Performance Characterisation and Extended Reliability Testing of CIGS PV Modules
Creators: name: Lechner, P.
name: Schnepf, J.
name: Stellbogen, D.
Publisher: name: WIP
Year: 2017
Subjects: Thin Film Photovoltaics
CI(G)S, CdTe and Related Thin Film Solar Cells and Modules

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 1004-1009
description: Experimental data from extended reliability testing and from characterisation of the metastable behaviour
of CIGS PV modules provide confidence in the bankability of the CIGS PV technology. CIGS modules reveal good stability
when subjected to extended DH tests up to 4000 h, by still maintaining 70 to more than 80% of their initial power. The
recovery of metastable effects by applying a light-soaking procedure is required after reliability tests; the time dependent
behaviour can be fitted with an exponential function. PID chamber tests provide experimental evidence that the degradation
of PID-prone CIGS modules is driven by transferred electrical charge. Following this rational, the required test duration of
the IEC TS 62804-2 PID test to cover the PID stress load of 25 years field operation can be determined. A case study using
different mounting EPDM rubbers for clamping frameless CIGS modules demonstrates that the from-lab-to-field acceleration
factor is not unique but must be defined case wise.
The Nash-Moser Theorem of Hamilton and rigidity of finite dimensional nilpotent Lie algebras
Creators: name: Brega, Alfredo
name: Cagliero, Leandro
name: Ochoa, Augusto Chaves
Publisher: name: arXiv
Year: 2015
Subjects: subject: Rings and Algebras (math.RA)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We apply the Nash-Moser theorem for exact sequences of R. Hamilton to the context of deformations of Lie algebras and we discuss some aspects of the scope of this theorem in connection with the polynomial ideal associated to the variety of nilpotent Lie algebras. This allows us to introduce the space $H_{k-nil}^2(\mathfrak{g},\mathfrak{g})$, and certain subspaces of it, that provide fine information about the deformations of $\mathfrak{g}$ in the variety of $k$-step nilpotent Lie algebras. Then we focus on degenerations and rigidity in the variety of $k$-step nilpotent Lie algebras of dimension $n$ with $n\le7$ and, in particular, we obtain rigid Lie algebras and rigid curves in the variety of 3-step nilpotent Lie algebras of dimension 7. We also recover some known results and point out a possible error in a published article related to this subject.
description: Accepted in J. of Pure and Applied Algebra. The structure of the paper has been bearly modified to follow the referee's suggestions
Selective Residual M-Net for Real Image Denoising
Creators: name: Fan, Chi-Mao
name: Liu, Tsung-Jung
name: Liu, Kuan-Hsien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Image restoration is a low-level vision task which is to restore degraded images to noise-free images. With the success of deep neural networks, the convolutional neural networks surpass the traditional restoration methods and become the mainstream in the computer vision area. To advance the performanceof denoising algorithms, we propose a blind real image denoising network (SRMNet) by employing a hierarchical architecture improved from U-Net. Specifically, we use a selective kernel with residual block on the hierarchical structure called M-Net to enrich the multi-scale semantic information. Furthermore, our SRMNet has competitive performance results on two synthetic and two real-world noisy datasets in terms of quantitative metrics and visual quality. The source code and pretrained model are available at https://github.com/TentativeGitHub/SRMNet.
description: arXiv admin note: text overlap with arXiv:2203.01296