cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discursive Media Institutionalism: Assessing Vivien A. Schmidt’s Framework and Its Value for Media and Communication Studies
Creators: name: Ganter, Sarah Anne
name: Löblich, Maria
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: discursive media institutionalism
subject: media policy
subject: neoinstitutionalism
subject: media policy as discourse
subject: communication and power
subject: 300 Sozialwissenschaften::380 Handel, Kommunikation, Verkehr::384 Kommunikation, Telekommunikation

description: Vivien A. Schmidt’s discursive institutionalism (DI) framework has gained considerable popularity in media and communication studies, particularly among scholars studying media institutions. However, while scholars refer to DI to emphasize the importance of ideas and discourses in institutional processes, to date, a critical assessment of the framework is lacking. In this article, we discuss DI from the perspective of media and communication studies and suggest a modified DI framework in which we (1) rethink discourse from a discourse theoretical perspective and emphasize power as a constituting element of media institutions, (2) differentiate between public (mass media) communication and other nonpublic and semipublic forms of communication, and (3) integrate macro perspectives (market, political system, culture, technology, globalization) into Schmidt’s micro–meso-focused framework. With these differentiations, our proposition is to be understood as a heuristic for a systematic analysis of media institutions as a field of power.
Towards testing the unitarity of the 3X3 lepton flavor mixing matrix in a precision reactor antineutrino oscillation experiment
Creators: name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The 3X3 Maki-Nakagawa-Sakata-Pontecorvo (MNSP) lepton flavor mixing matrix may be slightly non-unitary if the three active neutrinos are coupled with sterile neutrinos. We show that it is in principle possible to test whether the relation |V_{e1}|^2 + |V_{e2}|^2 + |V_{e3}|^2 = 1 holds or not in a precision reactor antineutrino oscillation experiment, such as the recently proposed Daya Bay II experiment. We explore three categories of non-unitary effects on the 3X3 MNSP matrix: 1) the indirect effect in the (3+ 3) flavor mixing scenario where the three heavy sterile neutrinos do not take part in neutrino oscillations; 2) the direct effect in the (3+\mathbbm{1}) scenario where the light sterile neutrino can oscillate into the active ones; and 3) the interplay of both of them in the (3+\mathbbm{1}+ 2) scenario. We find that both the zero-distance effect and flavor mixing factors of different oscillation modes can be used to determine or constrain the sum of |V_{e1}|^2, |V_{e2}|^2 and |V_{e3}|^2 and its possible deviation from one, and the active neutrino mixing angles θ_{12} and θ_{13} can be cleanly extracted even in the presence of light or heavy sterile neutrinos. Some useful analytical results are obtained for each of the three scenarios.
description: LaTeX 14 pages, 1 figure. Accepted for publication in Phys. Lett. B
Prototyping a Biodiversity Digital Twin @ Helmholtz-UFZ Science Days 2022
Creators: name: Khan, Taimur
name: Banitz, Thomas
name: Golivets, Marina
name: Grimm, Volker
name: Groeneveld, Jürgen
name: Kühn, Ingolf
name: Taubert, Franziska
Publisher: name: Zenodo
Year: 2022

description: Poster for BioDT presented at Helmholtz-UFZ Science Days 2022. Poster text: "Understanding the forces shaping biodiversity is key to meeting the EU Biodiversity Strategy 2030. In particular, we need to be able to better predict global biodiversity dynamics and how species interact with their environment and with each other. This is an extremely difficult task because the processes underlying biodiversity dynamics are complex. Our goal is to push the current boundaries of predictive understanding of biodiversity dynamics by developing a Biodiversity Digital Twin (BioDT) providing advanced modelling, simulation and prediction capabilities. Scientists at Research Infrastructures (RIs) will use the BioDT to 1) better observe changes in biodiversity in response to forces that result from climate change or human activity, 2) mechanistically understand how these changes occur and 3) predict the effects of these changes."
Helical edge states in multiple topological mass domains
Creators: name: Michetti, P.
name: Penteado, P. H.
name: Egues, J. C.
name: Recher, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The two-dimensional topological insulating phase has been experimentally discovered in HgTe quantum wells (QWs). The low-energy physics of two-dimensional topological insulators (TIs) is described by the Bernevig-Hughes-Zhang (BHZ) model, where the realization of a topological or a normal insulating phase depends on the Dirac mass being negative or positive, respectively. We solve the BHZ model for a mass domain configuration, analyzing the effects on the edge modes of a finite Dirac mass in the normal insulating region (soft-wall boundary condition). We show that at a boundary between a TI and a normal insulator (NI), the Dirac point of the edge states appearing at the interface strongly depends on the ratio between the Dirac masses in the two regions. We also consider the case of multiple boundaries such as NI/TI/NI, TI/NI/TI and NI/TI/NI/TI.
description: 11 pages, 15 figures
Climate Change Can Drive a Significant Loss of Suitable Habitat for Polylepis quadrijuga, a Treeline Species in the Sky Islands of the Northern Andes
Creators: name: Caballero-Villalobos, Lina
name: Fajardo-Gutiérrez, Francisco
name: Calbi, Mariasole
name: Silva-Arias, Gustavo A.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: climate change
subject: citizen science data
subject: habitat suitability modeling
subject: high-Andean forests
subject: Páramo
subject: street view imagery
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: It is predicted that climate change will strongly affect plant distributions in high elevation “sky islands” of tropical Andes. Polylepis forests are a dominant element of the treeline throughout the Andes Cordillera in South America. However, little is known about the climatic factors underlying the current distribution of Polylepis trees and the possible effect of global climate change. The species Polylepis quadrijuga is endemic to the Colombian Eastern Cordillera, where it plays a fundamental ecological role in high-altitude páramo-forest ecotones. We sought to evaluate the potential distribution of P. quadrijuga under future climate change scenarios using ensemble modeling approaches. We conducted a comprehensive assessment of future climatic projections deriving from 12 different general circulation models (GCMs), four Representative Concentration Pathways (R) emissions scenarios, and two different time frames (2041–2060 and 2061–2080). Additionally, based on the future projections, we evaluate the effectiveness of the National System of Protected Natural Areas of Colombia (SINAP) and Páramo Complexes of Colombia (PCC) in protecting P. quadrijuga woodlands. Here, we compiled a comprehensive set of observations of P. quadrijuga and study them in connection with climatic and topographic variables to identify environmental predictors of the species distribution, possible habitat differentiation throughout the geographic distribution of the species, and predict the effect of different climate change scenarios on the future distribution of P. quadrijuga. Our results predict a dramatic loss of suitable habitat due to climate change on this key tropical Andean treeline species. The ensemble Habitat Suitability Modeling (HSM) shows differences in suitable scores among north and south regions of the species distribution consistent with differences in topographic features throughout the available habitat of P. quadrijuga. Future projections of the HSM predicted the Páramo complex “Sumapaz-Cruz Verde” as a major area for the long-term conservation of P. quadrijuga because it provides a wide range of suitable habitats for the different evaluated climate change scenarios. We provide the first set of priority areas to perform both in situ and ex situ conservation efforts based on suitable habitat projections.
INFLUÊNCIA DO TRATAMENTO FISIOTERAPÊUTICO NO DESENVOLVIMENTO NEUROPSICOMOTOR EM BEBÊS PRÉ- TERMO
Creators: name: Maria Eduarda Guimarães de Lira
name: Rosileide Alves Livramento
Publisher: name: Zenodo
Year: 2023
Subjects: Desenvolvimento neuropsicomotor; Fisioterapia; Prematuridade, Estimulação precoce.
Neuropsychomotor development, Physiotherapy, Prematurity, Early stimulation.

description: Introdução:O desenvolvimento neuropsicomotor (DNPM) é o processo de evolução dos aspectos cognitivos, motores, sociais e afetivos em um indivíduo desde a fase neonatal.Objetivo: abordar o que a fisioterapia pode oferecer para o tratamento de bebês com atraso do desenvolvimento neuropsicomotor.Metodologia: é uma revisão literatura que consiste em uma abordagem qualitativa e quantitativa sendo descritiva, atual e relativa, através de levantamento de artigos e literatura.Resultados: foram encontrados 108 artigos quando uma primeira seleção foi realizada e, mediante a exclusão de duplicação nas bases de dados restaram 43 documentos. Em seguida, ocorreu a apreciação dos títulos, restando 32 publicações de elegibilidade, logo após acarretaram a exclusão de 28 publicações não compatíveis sobre o tema pesquisado. Restando 18 que atendiam os critérios de inclusão.Considerações finais: Tendo em vista os aspectos abordados nos artigos é fundamental levar em consideração o desenvolvimento motor infantil devido às consequências negativas que o atraso no desenvolvimento motor pode causar e que podem se estender até a vida adulta. A intervenção precoce oferece ao lactente uma ampla gama de estímulos novos, além de avanços nas aquisições motoras.
description: Presentation: neuropsychomotor development (NPMD) is the process of evolution of cognitive, motor, social and affective aspects in an individual since the neonatal phase.Objective: to address what physiotherapy can offer for the treatment of babies with neuropsychomotor development delays.Methodology: it is a literature review that consists of a qualitative and quantitative approach that is descriptive, current and relative, through a survey of articles and literature.Results: 108 articles were found when a first selection was carried out and, after excluding duplications in the databases, 43 documents remained. The titles were then assessed, leaving 32 publications eligible, followed by the exclusion of 28 non-compatible publications on the researched topic. There remained 18 that met the inclusion criteria.Final considerations: Considering the aspects covered in the articles, it is essential to take into account children's motor development due to the negative consequences that delayed motor development can cause and which can extend into adulthood. Early intervention offers the infant a wide range of new stimuli, in addition to advances in motor acquisition.
Multispecific resistance of sheep trichostrongylids in Austria
Creators: name: Untersweg, Florian
name: Ferner, Viktoria
name: Wiedermann, Sandra
name: Göller, Marie
name: Hörl-Rannegger, Marion
name: Kaiser, Waltraud
name: Joachim, Anja
name: Rinaldi, Laura
name: Krücken, Jürgen
name: Hinney, Barbara
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Nematode
subject: Benzimidazoles
subject: Macrocyclic lactones
subject: Monepantel
subject: Faecal egg count reduction test
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: Anthelmintic overuse and failure to implement methods preventing the development and spread of anthelmintic resistance (AR) have led to an alarming increase of resistant ovine trichostrongylids worldwide. The aim of the present study was to determine whether the routine anthelmintic treatment strategy was effective, to obtain insights into the frequency of AR in trichostrongylids of sheep in Austria, and to determine the presence of different trichostrongylid genera. On 30 sheep farms, the faecal egg count reduction test (FECRT) was performed with the Mini-FLOTAC technique in two consecutive studies. In study 1, only fenbendazole and moxidectin were tested, while different compounds and products were used in study 2. Overall, 33 treatment groups were formed: 11 groups were treated with benzimidazoles (fenbendazole and albendazole), 2 groups with avermectins (ivermectin, doramectin), 18 groups with moxidectin, and two groups with monepantel. Reduced efficacy was detected in 64%, 100%, 28% and 50% of these groups, respectively. The most frequently detected genus in larval cultures was Haemonchus, which had been barely detected in Austria previously, followed by Trichostrongylus. Multispecific resistance of trichostrongylids in Austria seems to be on the rise and H. contortus was detected unexpectedly frequently in comparison to previous studies. There is an urgent need to develop efficient communication strategies aimed at improving the engagement of farmers and veterinarians in sustainable parasite control.
Gauge field localization on the Bloch Brane
Creators: name: Cruz, W. T.
name: Lima, Aristeu R. P.
name: Almeida, C. A. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present new results on the localization of gauge fields in thick brane models. The four-dimensional observable universe is considered to be a topological defect which is generated by two scalar fields coupled with gravity embedded in a five-dimensional space-time. Like other thick brane models, the Bloch brane setup is not capable of supporting gauge field localization. In order to circumvent this problem we include the dilaton field and, as a result, obtain normalizable solutions. In addition, by writing the equations of motion as Schroedinger-like equations, we have found new kinds of resonances in the massive spectrum which appear also for heavy modes. This is in sharp contrast to what is commonly found in previous analog studies, where only light modes become resonant. At specific energies, the wave solutions exhibit very high amplitudes within the membrane. The influence of the dilaton coupling and of the internal structure on the resonant modes are also discussed.
description: 17 pages, 7 figures. Clarifying changes in Introduction and in Sections III, IV and V. Results unchanged
ORF8 contributes to cytokine storm during SARS-CoV-2 infection by activating IL-17 pathway
Creators: name: Lin, Xiaoyuan
name: Fu, Beibei
name: Yin, Songna
name: Li, Zhifeng
name: Liu, Huawen
name: Zhang, Haiwei
name: Xing, Na
name: Wang, Yu
name: Xue, Weiwei
name: Xiong, Yan
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Biological Sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Virology
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Recently, COVID-19 caused by the novel coronavirus SARS-CoV-2 has brought great challenges to the world. More and more studies have shown that patients with severe COVID-19 may suffer from cytokine storm syndrome; however, there are few studies on its pathogenesis. Here we demonstrated that SARS-CoV-2 coding protein open reading frame 8 (ORF8) acted as a contributing factor to cytokine storm during COVID-19 infection. ORF8 could activate IL-17 signaling pathway and promote the expression of pro-inflammatory factors. Moreover, we demonstrated that treatment of IL17RA antibody protected mice from ORF8-induced inflammation. Our findings are helpful to understand the pathogenesis of cytokine storm caused by SARS-CoV-2 and provide a potential target for the development of COVID-19 therapeutic drugs.
Mechanistic study of the gas-phase chemistry during the spray deposition of Zn(O,S) films by mass spectrometry
Creators: name: Fu, Yanpeng
name: Gledhill, Sophie
name: Fischer, Christian-Herbert
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Proton-promoted decomposition
subject: Aerosol assisted CVD
subject: Zn(O,S)
subject: Mass spectrometry
subject: Decomposition mechanism
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The mass spectrometer, is a powerful tool to identify species and investigate reactions in the gas phase. In this work, the mechanism of aerosol assisted chemical vapor deposition (AACVD) of Zn(O,S) films prepared from H2S and zinc acetylacetonate (Zn(acac)2) precursor solutions is elucidated by mass spectrometry. The thermochemical behavior of Zn(acac)2 is investigated by characterizing the influence of the solvent (H2O or ethanol), the pH value of the precursor solution and the effect of the reactant H2S, and by tracking gaseous intermediate products using mass spectrometry. Based on these results, a proton-promoted thermolysis mechanism for the AACVD Zn(O,S) film formation is then proposed, which is initiated by the hydrolysis with H2O as the first stage, followed either by the rearrangement with an intramolecular proton or by the reaction with an extramolecular proton to produce ZnO or Zn(O,S). A real time mass tracking of the AACVD process reveals that only an adequate amount of H2S promotes the chemical gas-phase decomposition and sulfurization process, while an excess of H2S depletes the gaseous Zn(acac)2 concentration and consequently reduces the film growth rate. The knowledge of the thermal decomposition process helps to optimize synthesis conditions and to adjust film properties to meet the requirement of the application in chalcopyrite or kesterite thin film solar cells.
Ein silberner Löffel aus Trier-St. Irminen
Creators: name: Cüppers, Heinz
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, 1976: Funde und Ausgrabungen im Bezirk Trier : Mitteilungen des Rheinischen Landesmuseums Trier
On Limit Cycles in Supersymmetric Theories
Creators: name: Fortin, Jean-François
name: Grinstein, Benjamín
name: Murphy, Christopher W.
name: Stergiou, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Contrary to popular belief conformality does not require zero beta functions. This follows from the work of Jack and Osborn, and examples in non-supersymmetric theories were recently found by some of us. In this note we show that such examples are absent in unitary N=1 supersymmetric four-dimensional field theories. More specifically, we show to all orders in perturbation theory that the beta-function vector field of such theories does not admit limit cycles. A corollary of our result is that unitary N=1 supersymmetric four-dimensional theories cannot be superscale-invariant without being superconformal.
description: 8 pages, 1 figure. Improved discussion in Section 5
Das Franzensknüppchen auf dem Petrisberg bei Kürenz - oder das Grab des Trebeta
Creators: name: Neyses, Adolf
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, 1978: Funde und Ausgrabungen im Bezirk Trier : Mitteilungen des Rheinischen Landesmuseums Trier
Ergodicity of the action of K* on A_K
Creators: name: Lagarias, Jeffrey C.
name: Neshveyev, Sergey
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Connes gave a spectral interpretation of the critical zeros of zeta- and L-functions for a global field K using a space of square integrable functions on the space A_K/K* of adele classes. It is known that for K=Q the space A_K/K* cannot be understood classically, or in other words, the action of Q* on A_Q is ergodic. We prove that the same is true for any global field K, in both the number field and function field cases.
description: 12 pages; minor changes
Titel
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, 1978: Funde und Ausgrabungen im Bezirk Trier : Mitteilungen des Rheinischen Landesmuseums Trier
Food movements, agrifood systems, and social change at the level of the national state: The Brazilian Marcha das Margaridas
Creators: name: Maia, Aline Borghoff
name: Teixeira, Marco Antonio
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: agrifood systems
subject: feminisms
subject: food movements
subject: gender inequalities
subject: social change
subject: women’s movements
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: Situated within the sociological debate on social change, the present article examines the potential for food movements to transform agrifood systems. Existing analyses within the field of food studies predominantly examine agrifood systems at either the global or local level. By contrast, our analysis begins with the national sphere, and seeks to demonstrate how national transformations relate to those on the global and local scales. We, thus, challenge the approach of dichotomous scales by providing categories and perspectives that highlight the relational and interdependent character of food movements. To do so, we examine the Marcha das Margaridas – a movement based in Brasil – and its achievements in transforming the national agrifood system. Established in 2000, the Marcha das Margaridas is a feminist mobilization that plays a central part in the fight against inequalities in agrifood systems and foments discussion of food politics on a multiplicity of scales. We demonstrate this by mapping the march’s public policy achievements, and by analyzing three of these in detail.
Ein römisches Bergheiligtum auf dem Burgkopf bei Fell
Creators: name: Gilles, Karl-Josef
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 15 (1983): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Ein Fund Limburger Keramik von Peffingen, Kr. Bitburg-Prüm
Creators: name: Löhr, Hartwig
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 16 (1984): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Die Entersburg bei Hontheim
Creators: name: Gilles, Karl-Josef
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 16 (1984): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Titelei
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 17 (1985): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Bemerkenswerte Fundstücke aus der linienbandkeramischen Siedlung in Frankfurt a.M.-Niedereschbach
Creators: name: Hampel, Andrea
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 67 Nr. 1 (1989)
Response-based outcome predictions and confidence regulate feedback processing and learning
Creators: name: Frömer, Romy
name: Nassar, Matthew R.
name: Bruckner, Rasmus
name: Stürmer, Birgit
name: Sommer, Werner
name: Yeung, Nick
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Response-based outcome predictions
subject: Response-based outcome confidence
subject: feedback processing
subject: learning
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Influential theories emphasize the importance of predictions in learning: we learn from feedback to the extent that it is surprising, and thus conveys new information. Here, we explore the hypothesis that surprise depends not only on comparing current events to past experience, but also on online evaluation of performance via internal monitoring. Specifically, we propose that people leverage insights from response-based performance monitoring – outcome predictions and confidence – to control learning from feedback. In line with predictions from a Bayesian inference model, we find that people who are better at calibrating their confidence to the precision of their outcome predictions learn more quickly. Further in line with our proposal, EEG signatures of feedback processing are sensitive to the accuracy of, and confidence in, post-response outcome predictions. Taken together, our results suggest that online predictions and confidence serve to calibrate neural error signals to improve the efficiency of learning.
Discovery and Early Multi-Wavelength Measurements of the Energetic Type Ic Supernova PTF12gzk: A Massive-Star Explosion in a Dwarf Host Galaxy
Creators: name: Ben-Ami, Sagi
name: Gal-Yam, Avishay
name: Filippenko, Alexei V.
name: Mazzali, Paolo A.
name: Modjaz, Maryam
name: Yaron, Ofer
name: Arcavi, Iair
name: Cenko, S. Bradley
name: Horesh, Assaf
name: Howell, D. Andrew
name: Graham, Melissa L.
name: Horst, J. Chuck
name: Im, Myunshin
name: Jeon, Yiseul
name: Kulkarni, Shrinivas R.
name: Leonard, Douglas C.
name: Pian, Elena
name: Sand, David J.
name: Sullivan, Mark
name: Becker, Juliette C.
name: Bersier, David
name: Bloom, Joshua S.
name: Bottom, Michael
name: Brown, Peter J.
name: Clubb, Kelsey I.
name: Dilday, Ben
name: Dixon, Richard C.
name: Fortinsky, Aryeh L.
name: Fox, Derek B.
name: Gonzalez, Luis A.
name: Harutyunyan, Avet
name: Kasliwal, Mansi M.
name: Li, Weidong
name: Malkan, Matthew A.
name: Manulis, Ilan
name: Matheson, Thomas
name: Moskovitz, Nicholas A.
name: Muirhead, Philip S.
name: Nugent, Peter E.
name: Ofek, Eran O.
name: Quimby, Robert M.
name: Richards, Joseph W.
name: Ross, Nathaniel R.
name: Searcy, Kinchen J.
name: Silverman, Jeffrey M.
name: Smith, Nathan
name: Vanderburg, Andrew
name: Walker, Emma S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the discovery and extensive early-time observations of the Type Ic supernova (SN) PTF12gzk. Our finely sampled light curves show a rise of 0.8mag within 2.5hr. Power-law fits [f(t)\sim(t-t_0)^n] to these data constrain the explosion date to within one day. We cannot rule out the expected quadratic fireball model, but higher values of n are possible as well for larger areas in the fit parameter space. Our bolometric light curve and a dense spectral sequence are used to estimate the physical parameters of the exploding star and of the explosion. We show that the photometric evolution of PTF12gzk is slower than that of most SNe Ic, and its high ejecta velocities (~30,000km/s four days after explosion) are closer to the observed velocities of broad-lined SNe Ic associated with gamma-ray bursts (GRBs) than to the observed velocities in normal Type Ic SNe. The high velocities are sustained through the SN early evolution, and are similar to those of GRB-SNe when the SN reach peak magnitude. By comparison with the spectroscopically similar SN 2004aw, we suggest that the observed properties of PTF12gzk indicate an initial progenitor mass of 25-35 solar mass and a large (5-10E51 erg) kinetic energy, close to the regime of GRB-SN properties. The host-galaxy characteristics are consistent with GRB-SN hosts, and not with normal SN Ic hosts as well, yet this SN does not show the broad lines over extended periods of time that are typical of broad-line Type Ic SNe.
title: Rebuttal of Mutual Trust and Mutual Recognition in Criminal Matters: Is 'Exceptional' Enough?
Creators: name: Marguery, Tony
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2016
Subjects: subject: mutual trust
subject: mutual recognition
subject: fundamental rights
subject: area of freedom, security and justice
subject: European arrest warrant
subject: equivalent protection

description: European Papers - A Journal on Law and Integration, 2016 1(3), 943-963
description: I. Introduction. - II. The conditionality of mutual trust in EU criminal law. - II.1. From presumption to conditionality. - II.2. The fundamental right's condition for mutual trust in criminal matters. - II.3. Condition without control? - III. "Trust is good, control is better": the judicial refutability of mutual trust. - IV. Avotiņš v. Aranyosi: clash of titans? - V. Conclusions.
description: The CJEU has recently found that mutual trust in the European Union is one of the principles relating to the constitutional structure of the Union. The principle is of fundamental importance in the construction of an Area of Freedom, Security and Justice (AFSJ) that includes judicial cooperation in criminal matters based on mutual recognition of judicial decisions. This contribution tries to clarify what the meaning and scope of mutual trust in criminal matters is. It discusses the following questions: What are the conditions for mutual trust to exist? What are the consequences of a lack of trust on judicial cooperation? It also puts the principle into the broader perspective of the European Convention on Human Rights system.
Jets and gamma-ray emission from isolated accreting black holes
Creators: name: Barkov, M. V.
name: Khangulyan, D. V.
name: Popov, S. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The large number of isolated black holes (IBHs) in the Galaxy, estimated to be 10^8, implies a very high density of 10^-4 pc^-3 and an average distance between IBHs of 10 pc. Our study shows that the magnetic flux, accumulated on the horizon of an IBH because of accretion of interstellar matter, allows the Blandford-Znajeck mechanism to be activated. Thus, electron-positron jets can be launched. We have performed 2D numerical modelling which allowed the jet power to be estimated. Their inferred properties make such jets a feasible electron accelerator which, in molecular clouds, allows electron energy to be boosted up to 1 PeV. For the conditions expected in molecular clouds the radiative cooling time should be comparable to the escape time. Thus these sources can contribute both to the population of unidentified point-like sources and to the local cosmic ray (CR) electron spectrum. The impact of the generated electron CRs depends on the diffusion rate inside molecular clouds (MCs). If the diffusion regime in a MC is similar to Galactic diffusion, the produced electrons should rapidly escape the cloud and contribute to the Galactic CR population at very high energies >100 TeV. However, due to the modest jet luminosity (at the level of 10^35 erg s^-1) and low filling factor of MC, these sources cannot make a significant contribution to the spectrum of cosmic ray electrons at lower energies. On the other hand, if the diffusion within MCs operates at a rate close to the Bohm limit, the CR electrons escaping from the source should be confined in the cloud, significantly contributing to the local density of CRs. The IC emission of these locally-generated CRs may explain the variety of gamma ray spectra detected from nearby MCs.
description: 6 pages, accepted by MNRAS
Two ligand-binding sites in CO-reducing V nitrogenase reveal a general mechanistic principle
Creators: name: Rohde, Michael
name: Laun, Konstantin
name: Zebger, Ingo
name: Stripp, Sven T.
name: Einsle, Oliver
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: nitrogenase
subject: CO-reducing
subject: ligand-binding
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Besides its role in biological nitrogen fixation, vanadium-containing nitrogenase also reduces carbon monoxide (CO) to hydrocarbons, in analogy to the industrial Fischer-Tropsch process. The protein yields 93% of ethylene (C2H4), implying a C–C coupling step that mandates the simultaneous binding of two CO at the active site FeV cofactor. Spectroscopic data indicated multiple CO binding events, but structural analyses of Mo and V nitrogenase only confirmed a single site. Here, we report the structure of a two CO-bound state of V nitrogenase at 1.05 Å resolution, with one μ-bridging and one terminal CO molecule. This additional, specific ligand binding site suggests a mechanistic route for CO reduction and hydrocarbon formation, as well as a second access pathway for protons required during the reaction. Moreover, carbonyls are strong-field ligands that are chemically similar to mechanistically relevant hydrides that may be formed and used in a fully analogous fashion.
Fracture Shape and Orientation Contributions to P-Wave Velocity and Anisotropy of Alpine Fault Mylonites
Creators: name: Charoensawan, Jirapat
name: Adam, Ludmila
name: Ofman, Michael
name: Toy, Virginia
name: Simpson, Jonathan
name: Zhong, Xin
name: Schuck, Bernhard
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: P-wave velocity
subject: anisotropy
subject: Alpine Fault
subject: fracture
subject: electron backscattered diffraction
subject: numerical modeling
subject: synchrotron X-ray microtomography
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: P-wave anisotropy is significant in the mylonitic Alpine Fault shear zone. Mineral- and texture-induced anisotropy are dominant in these rocks but further complicated by the presence of fractures. Electron back-scattered diffraction and synchrotron X-ray microtomography (micro-CT) data are acquired on exhumed schist, protomylonite, mylonite, and ultramylonite samples to quantify mineral phases, crystal preferred orientations, microfractures, and porosity. The samples are composed of quartz, plagioclase, mica and accessory garnet, and contain 3–5% porosity. Based on the micro-CT data, the representative pore shape has an aspect ratio of 5:2:1. Two numerical models are compared to calculate the velocity of fractured rocks: a 2D wave propagation model, and a differential effective medium model (3D). The results from both models have comparable pore-free fast and slow velocities of 6.5 and 5.5 km/s, respectively. Introducing 5% fractures with 5:2:1 aspect ratio, oriented with the longest axes parallel to foliation decreases these velocities to 6.3 and 5.0 km/s, respectively. Adding both randomly oriented and foliation-parallel fractures hinders the anisotropy increase with fracture volume. The anisotropy becomes independent of porosity when 80% of fractures are randomly oriented. Modeled anisotropy in 2D and 3D are different for similar fracture aspect ratios, being 30 and 15%, respectively. This discrepancy is the result of the underlying assumptions and limitations. Our numerical results explain the effects that fracture orientations and shapes have on previously published field- and laboratory-based studies. Through this numerical study, we show how mica-dominated, pore-free P-wave anisotropy compares to that of fracture volume, shape and orientation for protolith and shear zone rocks of the Alpine Fault.
Note on dilogarithm identities from nilpotent double affine Hecke algebras
Creators: name: Nakanishi, Tomoki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37, 13F60

description: Recently Cherednik and Feigin obtained several Rogers-Ramanujan type identities via the nilpotent double affine Hecke algebras (Nil-DAHA). These identities further led to a series of dilogarithm identities, some of which are known, while some are left conjectural. We confirm and explain all of them by showing the connection with Y-systems associated with (untwisted and twisted) quantum affine Kac-Moody algebras.
description: 5 pages; v2: Section 4 added, journal version in SIGMA
Times Associated With Source-to-Sink Propagation of Environmental Signals During Landscape Transience
Creators: name: Tofelde, Stefanie
name: Bernhardt, Anne
name: Guerit, Laure
name: Romans, Brian W.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: signal propagation
subject: landscape transience
subject: source-to-sink
subject: stratigraphy
subject: response time
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: Sediment archives in the terrestrial and marine realm are regularly analyzed to infer changes in climate, tectonic, or anthropogenic boundary conditions of the past. However, contradictory observations have been made regarding whether short period events are faithfully preserved in stratigraphic archives; for instance, in marine sediments offshore large river systems. On the one hand, short period events are hypothesized to be non-detectable in the signature of terrestrially derived sediments due to buffering during sediment transport along large river systems. On the other hand, several studies have detected signals of short period events in marine records offshore large river systems. We propose that this apparent discrepancy is related to the lack of a differentiation between different types of signals and the lack of distinction between river response times and signal propagation times. In this review, we (1) expand the definition of the term ‘signal’ and group signals in sub-categories related to hydraulic grain size characteristics, (2) clarify the different types of ‘times’ and suggest a precise and consistent terminology for future use, and (3) compile and discuss factors influencing the times of signal transfer along sediment routing systems and how those times vary with hydraulic grain size characteristics. Unraveling different types of signals and distinctive time periods related to signal propagation addresses the discrepancies mentioned above and allows a more comprehensive exploration of event preservation in stratigraphy – a prerequisite for reliable environmental reconstructions from terrestrially derived sedimentary records.
"Blind" conservation. The Dire Need for Evidence-Based Conservation Practices.
Creators: name: Funk, Stephan M
Publisher: name: Zenodo
Year: 2023
Subjects: practical conservation
evidence-based conservation

description: "Blind" conservation efforts lack evidence-based strategies, which undermines resource efficiency and widens the gap between research and practical application. Despite that the topic has been highlighted repeatedly over the last two decades, a large portion of conservation projects are still not grounded in scientific data, a deficiency perpetuated by skill and resource gaps in organisations. While educational initiatives have aimed to address these issues, challenges persist, including with open-access publishing's financial barriers for some researchers and applied conservation managers. To bolster conservation outcomes, I advocate for enhanced monitoring, improved data sharing and closer integration of research results into practical management, emphasising the need for evidence-backed conservation to ensure effective biodiversity conservation.
Dual-stimuli pseudorotaxane switches under kinetic control
Creators: name: Gaedke, Marius
name: Hupatz, Henrik
name: Schröder, Hendrik V.
name: Suhr, Simon
name: Hoffmann, Kurt F.
name: Valkonen, Arto
name: Sarkar, Biprajit
name: Riedel, Sebastian
name: Rissanen, Kari
name: Schalley, Christoph A.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: sec-ammonium salts
subject: pseudostoppers
subject: pseudorotaxanes
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::547 Organische Chemie

description: A series of dumbbell-shaped sec-ammonium salts with bulky (pseudo)stoppers (‘speed bumps’) were tested for their ability to form pseudorotaxanes with a redox-switchable, tetrathiafulvalene (TTF)-decorated [24]crown-8 ether. Depending on the size of the pseudostoppers, fast (less than ten minutes), slow (hours to days) and very slow (no pseudorotaxanes observed) threading has been observed. NMR spectroscopy as well as tandem mass spectrometry indicate the formation of non-threaded face-to-face complexes prior to pseudorotaxanes formation. Both isomers can be distinguished by their substantially different stability in collision-induced dissociation (CID) experiments. Two external stimuli affect the stability of the pseudorotaxanes: Deprotonation of the ammonium ion results in fast dethreading, while dethreading is much slower when induced by the charge repulsion upon chemical oxidation of the TTF moiety. Remarkably, the same steric bulk of the pseudostopper thus leads to different dethreading rates depending on the stimulus applied. Based on these findings, two redox-switchable rotaxanes containing a 1-naphthyl and a phenyl moiety as sterically different ‘speed bumps’ in the axle centre were synthesised. Bulk electrolysis of the rotaxanes did not result in the expected macrocycle translocation on the axle independent of the ‘speed bump’ as a remarkable consequence of the mechanical bond.
Cloud-Based Augmentation for Mobile Devices: Motivation, Taxonomies, and Open Challenges
Creators: name: Saeid Abolfazli
name: Sanaei, Zohreh
name: Ejaz Ahmad
name: Gani, Abdullah
name: Buyya, Rajkumar
Publisher: name: Figshare
Year: 2014
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: Computer Engineering
subject: Computer Software
subject: Theoretical Computer Science
subject: Applied Computer Science

description: Recently, Cloud-based Mobile Augmentation (CMA) approaches have gained remarkable ground from academia and industry. CMA is the state-of-the-art mobile augmentation model that employs resource-rich clouds to increase, enhance, and optimize computing capabilities of mobile devices aiming at execution of resource-intensive mobile applications. Augmented mobile devices envision to perform extensive computations and to store big data beyond their intrinsic capabilities with least footprint and vulnerability. Researchers utilize varied cloud-based computing resources (e.g., distant clouds and nearby mobile nodes) to meet various computing requirements of mobile users. However, employing cloud-based computing resources is not a straightforward panacea. Comprehending critical factors (e.g., current state of mobile client and remote resources) that impact on augmentation process and optimum selection of cloud-based resource types are some challenges that hinder CMA adaptability. This paper comprehensively surveys the mobile augmentation domain and presents taxonomy of CMA approaches. The objectives of this study is to highlight the effects of remote resources on the quality and reliability of augmentation processes and discuss the challenges and opportunities of employing varied cloud-based resources in augmenting mobile devices. We present augmentation definition, motivation, and taxonomy of augmentation types, including traditional and cloud-based. We critically analyze the state-of-the-art CMA approaches and classify them into four groups of distant fixed, proximate fixed, proximate mobile, and hybrid to present a taxonomy. Vital decision making and performance limitation factors that influence on the adoption of CMA approaches are introduced and an exemplary decision making flowchart for future CMA approaches are presented. Impacts of CMA approaches on mobile computing is discussed and open challenges are presented as the future research directions.
Resolving the Radio Source Background: Deeper Understanding Through Confusion
Creators: name: Condon, J. J.
name: Cotton, W. D.
name: Fomalont, E. B.
name: Kellermann, K. I.
name: Miller, N.
name: Perley, R. A.
name: Scott, D.
name: Vernstrom, T.
name: Wall, J. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We used the Karl G. Jansky Very Large Array (VLA) to image one primary beam area at 3 GHz with 8 arcsec FWHM resolution and 1.0 microJy/beam rms noise near the pointing center. The P(D) distribution from the central 10 arcmin of this confusion-limited image constrains the count of discrete sources in the 1 < S(microJy/beam) < 10 range. At this level the brightness-weighted differential count S^2 n(S) is converging rapidly, as predicted by evolutionary models in which the faintest radio sources are star-forming galaxies; and ~96$% of the background originating in galaxies has been resolved into discrete sources. About 63% of the radio background is produced by AGNs, and the remaining 37% comes from star-forming galaxies that obey the far-infrared (FIR) / radio correlation and account for most of the FIR background at lambda = 160 microns. Our new data confirm that radio sources powered by AGNs and star formation evolve at about the same rate, a result consistent with AGN feedback and the rough correlation of black hole and bulge stellar masses. The confusion at centimeter wavelengths is low enough that neither the planned SKA nor its pathfinder ASKAP EMU survey should be confusion limited, and the ultimate source detection limit imposed by "natural" confusion is < 0.01 microJy at 1.4 GHz. If discrete sources dominate the bright extragalactic background reported by ARCADE2 at 3.3 GHz, they cannot be located in or near galaxies and most are < 0.03 microJy at 1.4 GHz.
description: 28 pages including 16 figures. ApJ accepted for publication
GWitchHunters - Machine Learning and Citizen Science to support Gravitational Wave detection
Creators: name: Razzano, Massimiliano
name: Di Renzo, Francesco
name: Fidecaro, Francesco
name: Hemming, Gary
name: Katsanevas, Stavros
Publisher: name: Zenodo
Year: 2022

description: Presentation delivered at ML4Astro.