cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rabinowitz Floer homology of negative line bundles and Floer Gysin sequence
Creators: name: Albers, Peter
name: Kang, Jungsoo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: This article is concerned with the Rabinowitz Floer homology of negative line bundles. We construct a refined version of Rabinowitz Floer homology and study its properties. In particular, we build a Gysin-type long exact sequence for this new invariant and discuss an application to the orderability problem for prequantization spaces. We also construct a short exact sequence for the ordinary Rabinowitz Floer homology and provide computational results.
description: 122 pages, 3 figures
The association between urbanization and reduced renal function: findings from the China Health and Nutrition Survey
Creators: name: Howard, Annie Green
name: Inoue, Yosuke
name: Thompson, Amanda
name: Gordon-Larsen, Penny
name: Mendez, Michelle
name: Herring, Amy
Publisher: name: BioMed Central
Year: 2017

description: Abstract Background While chronic kidney disease (CKD) is a growing public health concern in low- and middle-income countries, such as China, few studies have investigated the association between urbanization and the occurrence of CKD in those countries. Methods We investigated the association between urbanization and estimated glomerular filtration rate (eGFR), an important CKD risk marker. Data came from the China Health and Nutrition Survey wave 2009, in which we collected fasting serum, individual and household data along with community level urbanization data, which was used to derive a study-specific urbanization measure, in 218 communities across nine provinces. A total of 3644 men and 4154 women participants aged 18 years or older were included in the analysis. Reduced renal function was defined as eGFR of less than 60 mL/min/1.73 m2 measured using serum creatinine concentration (mg/dL). Results After adjusting for socio-demographic (e.g., age, education and household income), a sex-stratified multilevel logistic model revealed that living in a more urbanized community was associated with higher odds of reduced eGFR (odds ratio [OR] = 1.38 per one-standard deviation [SD] increase in the CHNS specific urbanization index, 95% confidence interval [CI] = 1.11–1.73 for men; OR = 1.35, 95% CI = 1.11–1.62 for women). After adjusting for behavioral variables (i.e., alcohol consumption, smoking, physical activity and diet), as well as obesity and cardiometabolic risk factors, the association was attenuated in men (OR = 1.25, 95% CI = 0.98–1.59), but remained statistically significant in women (OR = 1.24, 95% CI = 1.01–1.52). Conclusion Our findings suggest that living in an urban environment is linked with higher odds of reduced renal function independently of behavioral and cardiometabolic risk factors, which have been shown to increase along with urbanization.
The isospin structure of photoproduction of pi-eta pairs from the nucleon in the threshold region
Creators: name: Käser, A.
name: Ahrens, J.
name: Annand, J. R. M.
name: Arends, H. J.
name: Bantawa, K.
name: Bartolome, P. A.
name: Beck, R.
name: Bekrenev, V.
name: Berghäuser, H.
name: Braghieri, A.
name: Branford, D.
name: Briscoe, W. J.
name: Brudvik, J.
name: Cherepnya, S.
name: Costanza, S.
name: Demissie, B.
name: Dieterle, M.
name: Downie, E. J.
name: Drexler, P.
name: Fil'kov, L. V.
name: Fix, A.
name: Glazier, D. I.
name: Hamilton, D.
name: Heid, E.
name: Hornidge, D.
name: Howdle, D.
name: Huber, G. M.
name: Jahn, O.
name: Jaegle, I.
name: Jude, T. C.
name: Kashevarov, V. L.
name: Keshelashvili, I.
name: Kondratiev, R.
name: Korolija, M.
name: Kruglov, S. P.
name: Krusche, B.
name: Lisin, V.
name: Livingston, K.
name: MacGregor, I. J. D.
name: Maghrbi, Y.
name: Mancell, J.
name: Manley, D. M.
name: Marinides, Z.
name: McGeorge, J. C.
name: McNicoll, E.
name: Mekterovic, D.
name: Metag, V.
name: Micanovic, S.
name: Middleton, D. G.
name: Mushkarenkov, A.
name: Nikolaev, A.
name: Novotny, R.
name: Oberle, M.
name: Ostrick, M.
name: Otte, P.
name: Oussena, B.
name: Pedroni, P.
name: Pheron, F.
name: Polonski, A.
name: Prakhov, S. N.
name: Robinson, J.
name: Rosner, G.
name: Rostomyan, T.
name: Schumann, S.
name: Sikora, M. H.
name: Sober, D. I.
name: Starostin, A.
name: Supek, I.
name: Thiel, M.
name: Thomas, A.
name: Unverzagt, M.
name: Watts, D. P.
name: Werthmüller, D.
name: Witthauer, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Photoproduction of $πη$-pairs from nucleons has been investigated from threshold up to incident photon energies of $\approx$~1.4~GeV. The quasi-free reactions $γp\rightarrow pπ^0η$, $γn\rightarrow nπ^0η$, $γp\rightarrow nπ^+η$, and $γn\rightarrow pπ^-η$ were for the first time measured from nucleons bound in the deuteron. The corresponding reactions from a free-proton target were also studied to investigate final-state interaction effects (for neutral pions the free-proton results could be compared to previous measurements; the $γp\rightarrow nπ^+η$ reaction was measured for the first time). For the $π^0η$ final state coherent production via the $γd\rightarrow dπ^0η$ reaction was also investigated. The experiments were performed at the tagged photon beam of the Mainz MAMI accelerator using an almost $4π$ coverage electromagnetic calorimeter composed of the Crystal Ball and TAPS detectors. The total cross sections for the four different final states obey the relation $σ(pπ^0η)$ $\approx$ $σ(nπ^0η)$ $\approx$ $2σ(pπ^-η)$ $\approx$ $2σ(nπ^+η)$ as expected for a dominant contribution from a $Δ^{\star}\rightarrowηΔ(1232)\rightarrowπηN$ reaction chain, which is also supported by the shapes of the invariant-mass distributions of nucleon-meson and $π$-$η$ pairs. The experimental results are compared to the predictions from an isobar reaction model.
description: accepted for publication in Phys. Lett. B
Turkish Populist Nationalism in Transnational Space: Explaining Diaspora Voting Behaviour in Homeland Elections
Creators: name: Arkilic, Zekiye
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2023
Subjects: subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science
subject: 210399 Historical Studies not elsewhere classified
subject: FOS: History and archaeology

description: Turkey has seen a surge in populist nationalism over the last decade. How this has played out in transnational space through overseas Turkish citizens’ voting behaviour remains understudied, however. This article takes up this question, focusing on how the populist–nationalist appeals of the ruling AKP have been received by Turkish citizens in Europe. Specifically, it asks why such appeals have resonated highly with voters in some host countries but not in others. The study suggests that expatriates from Turkey facing more discrimination are more likely to be wooed by populist–nationalist discourse from the homeland. The findings draw on official statements and speeches, Turkish electoral data, the European Union Minorities and Discrimination Survey, newspaper articles, and secondary sources.
title: THE EFFİCİENCY OF HUMAN RESOURCES IN SCHOOLS, THE ADEQUACY OF THE CONTROL OF THE SCHOOL PRİNCİPAL
title: Статья
titleType: Subtitle
Creators: name: Ince, Zuhal
Publisher: name: "Южный Университет (ИУБиП)"
Year: 2018
Subjects: The principal
instructional leadership
audit
qualification

Abstract
Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC
Creators: name: Tanimoto, Morimitsu
name: Yamamoto, Kei
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the sensitivity of the high-scale SUSY at $10$-$1000$ TeV in $B^0$, $B_s$, $K^0$ and $D$ meson systems together with the neutron EDM and the mercury EDM. In order to estimate the contribution of the squark flavor mixing to these FCNCs,we calculate the squark mass spectrum, which is consistent with the recent Higgs discovery. The SUSY contribution in $ε_K$ could be large, around 40% in the region of the SUSY scale $10$-$100$ TeV. The neutron EDM and the mercury EDM are also sensitive to the SUSY contribution induced by the gluino-squark interaction. The predicted EDMs are roughly proportional to $|ε_K^{\rm SUSY}|$. If the SUSY contribution is the level of O(10%) for epsilon_K, the neutron EDM is expected to be discovered in the region of $10^{-28}$-$10^{-26}$ecm. The mercury EDM also gives a strong constraint for the gluino-squark interaction. The SUSY contribution of $ΔM_D$ is also discussed.
description: 25 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:1404.0520
THz conductivity of graphene on boron nitride
Creators: name: DaSilva, Ashley M.
name: Jung, Jeil
name: Adam, Shaffique
name: MacDonald, Allan H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The conductivity of graphene on a boron nitride substrate exhibits features in the terahertz (THz) and infrared (IR) frequency regimes that are associated with the periodic moiré pattern formed by the weakly coupled two-dimensional materials. The THz and IR features are strongest when the two honeycomb lattices are orientationally aligned, and in this case are Pauli blocked unless the Fermi level is close to $\pm 150$ meV relative to the graphene sheet Dirac point. Because the transition energies between moiré bands formed above the Dirac point are small, ac conductivity features in n-doped graphene tend to be overwhelmed by the Drude peak. The substrate-induced band splitting is larger at energies below the Dirac point, however, and can however lead to sharp features at THz and IR frequencies in p-doped graphene. In this Letter we focus on the strongest few THz and IR features, explaining how they arise from critical points in the moiré-band joint density-of-states, and commenting on the interval of Fermi energy over which they are active.
Water delivery in the Early Solar System
Creators: name: Dvorak, Rudolf
name: Eggl, Siegfried
name: Süli, Áron
name: Sándor, Zsolt
name: Galiazzo, Mattia
name: Pilat-Lohinger, Elke
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: As part of the national scientific network 'Pathways to Habitable Worlds' the delivery of water onto terrestrial planets is a key question since water is essential for the development of life as we know it. After summarizing the state of the art we show some first results of the transport of water in the early Solar System for scattered main belt objects. Hereby we investigate the questions whether planetesimals and planetesimal fragments which have gained considerable inclination due to the strong dynamical interactions in the main belt region around 2 AU can be efficient water transporting vessels. The Hungaria asteroid group is the best example that such scenarios are realistic. Assuming that the gas giants and the terrestrial planets are already formed, we monitor the collisions of scattered small bodies containing water (in the order of a few percent) with the terrestrial planets. Thus we are able to give a first estimate concerning the respective contribution of such bodies to the actual water content in the crust of the Earth.
description: 11 pages, 6 figures
Sterben und Tod in Kurzfilmen für Kinder
Creators: name: Quietzsch, Uta
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2013

description: In der Praxis der Filmseminare mit Studentinnen und Studenten hat sich gezeigt, dass diese meist nicht über hinreichendes Vorwissen für Filmanalysen verfügen und ihnen auch die Fachbegriffe im Bereich der filmischen Gestaltungsmittel fehlen. Da die Filmanalyse-Seminare allein schon wegen der jedes Universitäts-Zeitraster sprengenden Filmlänge sinnvollerweise als Blockveranstaltungen durchgeführt werden, bekommen die Studenten zur Vorbereitung und als Hilfmittel für eigene Filmanalysen eine grundständige Einführung. Dieses Basiswissen über „Filmsprache und Filmanalyse in der Medienpädagogik“ ist in den letzten zwanzig Jahren immer wieder optimiert worden und wird in der vorliegenden Fassung an der TU Dresden und der Universität Duisburg/Essen eingesetzt. The experience with film seminars for students has shown that these mostly do not dispose of enough foreknowledge for film analyses and they also lack the technical terms of the cinematic means. Since the length of films blows up each university time slot pattern, and therefore the seminars are conducted as block events, the students get an introduction from scratch in an orientation session as basic knowledge and tools for their own film analysis. This basic knowledge of "film language and film analysis in the media education" has been optimized again and again in the last twenty years and is used in the present version at the TU Dresden and the University of Duisburg/Essen.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
Unconditionally Secure Quantum Signatures
Creators: name: Amiri, Ryan
name: Andersson, Erika
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Signature schemes, proposed in 1976 by Diffie and Hellman, have become ubiquitous across modern communications. They allow for the exchange of messages from one sender to multiple recipients, with the guarantees that messages cannot be forged or tampered with and that messages also can be forwarded from one recipient to another without compromising their validity. Signatures are different from, but no less important than encryption, which ensures the privacy of a message. Commonly used signature protocols - signatures based on the Rivest-Adleman-Shamir (RSA) algorithm, the digital signature algorithm (DSA), and the elliptic curve digital signature algorithm (ECDSA) - are only computationally secure, similar to public key encryption methods. In fact, since these rely on the difficulty of finding discrete logarithms or factoring large primes, it is known that they will become completely insecure with the emergence of quantum computers. We may therefore see a shift towards signature protocols that will remain secure even in a post-quantum world. Ideally, such schemes would provide unconditional or information-theoretic security. In this paper, we aim to provide an accessible and comprehensive review of existing unconditionally secure signature schemes for signing classical messages, with a focus on unconditionally secure quantum signature schemes.
description: 16 pages; an accessible short review paper in a special issue on Quantum Cryptography
Filmsprache und Filmanalyse in der Medienpädagogik
Creators: name: Schäfer, Horst
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2013

description: In der Praxis der Filmseminare mit Studentinnen und Studenten hat sich gezeigt, dass diese meist nicht über hinreichendes Vorwissen für Filmanalysen verfügen und ihnen auch die Fachbegriffe im Bereich der filmischen Gestaltungsmittel fehlen. Da die Filmanalyse-Seminare allein schon wegen der jedes Universitäts-Zeitraster sprengenden Filmlänge sinnvollerweise als Blockveranstaltungen durchgeführt werden, bekommen die Studenten zur Vorbereitung und als Hilfmittel für eigene Filmanalysen eine grundständige Einführung. Dieses Basiswissen über „Filmsprache und Filmanalyse in der Medienpädagogik“ ist in den letzten zwanzig Jahren immer wieder optimiert worden und wird in der vorliegenden Fassung an der TU Dresden und der Universität Duisburg/Essen eingesetzt. The experience with film seminars for students has shown that these mostly do not dispose of enough foreknowledge for film analyses and they also lack the technical terms of the cinematic means. Since the length of films blows up each university time slot pattern, and therefore the seminars are conducted as block events, the students get an introduction from scratch in an orientation session as basic knowledge and tools for their own film analysis. This basic knowledge of "film language and film analysis in the media education" has been optimized again and again in the last twenty years and is used in the present version at the TU Dresden and the University of Duisburg/Essen.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
Einleitung: Medienpädagogik vorgestellt. Filmbildung und narrative Pädagogik (TU Dresden)
Creators: name: Vollbrecht, Ralf
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2014

description: Medienpädagogik vorgestellt. Filmbildung und narrative Pädagogik (TU Dresden)
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
The Collaborative Lithium Trials (CoLT): specific aims, methods, and implementation
Creators: name: Sikich, Linmarie
name: Hooper, Stephen R.
Publisher: name: BioMed Central Ltd
Year: 2008

description: Abstract Background Lithium is a benchmark treatment for bipolar illness in adults. However, there has been relatively little methodologically stringent research regarding the use of lithium in youth suffering from bipolarity. Methods Under the auspices of the Best Pharmaceuticals for Children Act (BPCA), a Written Request (WR) pertaining to the study of lithium in pediatric mania was issued by the United States Food and Drug Administration (FDA) to the National Institute of Child Health and Human Development (NICHD) in 2004. Accordingly, the NICHD issued a Request for Proposals (RFP) soliciting submissions to pursue this research. Subsequently, the NICHD awarded a contract to a group of investigators in order to conduct these studies. Results The Collaborative Lithium Trials (CoLT) investigators, the BPCA-Coordinating Center, and the NICHD developed protocols to provide data that will: (1) establish evidence-based dosing strategies for lithium; (2) characterize the pharmacokinetics and biodisposition of lithium; (3) examine the acute efficacy of lithium in pediatric bipolarity; (4) investigate the long-term effectiveness of lithium treatment; and (5) characterize the short- and long-term safety of lithium. By undertaking two multi-phase trials rather than multiple single-phase studies (as was described in the WR), the feasibility of the research to be undertaken was enhanced while ensuring all the data outlined in the WR would be obtained. The first study consists of: (1) an 8-week open-label, randomized, escalating dose Pharmacokinetic Phase; (2) a 16-week Long-Term Effectiveness Phase; (3) a 28-week double-blind Discontinuation Phase; and (4) an 8-week open-label Restabilization Phase. The second study consists of: (1) an 8-week, double-blind, parallel-group, placebo-controlled Efficacy Phase; (2) an open-label Long-Term Effectiveness lasting either 16 or 24 weeks (depending upon blinded treatment assignment during the Efficacy Phase); (3) a 28-week double-blind Discontinuation Phase; and (4) an 8-week open-label Restabilization Phase. In December of 2006, enrollment into the first of these studies began across seven sites. Conclusion These innovative studies will not only provide data to inform the labeling of lithium in children and adolescents with bipolar disorder, but will also enhance clinical decision-making regarding the use of lithium treatment in pediatric bipolar illness. Trial Registration NCT00442039
Epidemic spreading and immunization strategy in multiplex networks
Creators: name: Zuzek, Lucila G. Alvarez
name: Buono, Camila
name: Braunstein, Lidia A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A more connected world has brought major consequences such as facilitate the spread of diseases all over the world to quickly become epidemics, reason why researchers are concentrated in modeling the propagation of epidemics and outbreaks in Multilayer Networks. In this networks all nodes interact in different layers with different type of links. However, in many scenarios such as in the society, a Multiplex Network framework is not completely suitable since not all individuals participate in all layers. In this paper, we use a partially overlapped Multiplex Network where only a fraction of the individuals are shared by the layers. We develop a mitigation strategy for stopping a disease propagation, considering the Susceptible-Infected-Recover model, in a system consisted by two layers. We consider a random immunization in one of the layers and study the effect of the overlapping fraction in both, the propagation of the disease and the immunization strategy. Using branching theory, we study this scenario theoretically and via simulations and find a lower epidemic threshold than in the case without strategy.
description: 9 pages, 2 figures, accepted in Journal of Physics: Conference Series (JPCS)
Sjogren's Syndrome and the risk of gastrointestinal disorders: a Mendelian randomization study
Creators: name: Liu, Jie
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Medical Sciences

description: A bidirectional two-sample Mendelian study was used to evaluate the causal relationship between digestive diseases and SS. In this study, we obtained pooled data from genome-wide association studies (GWASs) in which single nucleotide polymorphisms (SNPS) significantly associated with SS and digestive diseases (chronic gastritis, gastroesophageal reflux disease, chronic enteritis, inflammatory bowel disease, celiac disease, irritable bowel syndrome, etc.) were used as instrumental variables to determine the causal effects of exposure variables. MR Research meets the following three core assumptions to ensure the credibility of research results: Correlation hypothesis means that instrumental variables are strongly correlated with exposure factors; The independence hypothesis means that the instrumental variables are not correlated with all confounding factors. The exclusionary hypothesis refers to the fact that the instrumental variables are not directly associated with the outcome, but only through exposure factors. Instrumental variables play an important role in MR Studies, so we also calculate statistical power and detect bias due to heterogeneity and pleiotropy through sensitivity analysis and the use of F-statistics and Q-statistics.
title: “Kiel povas Esperanto helpi aliajn minoritatajn lingvojn? Stam mo a vèder! How can Esperanto help other minority languages? Let’s find out! A sociolinguistic enquiry into the linguistic practices of Esperanto and Emilian speakers.”
Creators: name: Hampton, Jessica
name: Iubini Hampton, Jessica
Publisher: name: University of Liverpool Repository
Year: 2023

description: Faced with an increasing number of speakers abandoning the use of the world’s minoritised languages, this thesis investigates two language communities by observing the linguistic practices and attitudes that characterise them to inform future efforts of language support. Taking Emilian and Esperanto as two comparable minoritised languages, data from the two communities are collected to reveal the key similarities and differences across them. While Esperanto boasts a thriving number of speakers, Emilian is thought to be rapidly declining. Likewise, the academic literature on Esperanto is both thorough and current, whereas, when it comes to its sociolinguistic landscape, the literature on Emilian is virtually non-existent. This thesis builds on the existing knowledge on Esperanto and lays the foundations for our understanding of the linguistic practices and attitudes in the Emilian community. In an attempt to provide a broad overview, research questions are open-ended and their aims are threefold: (i) to gauge linguistic practices comparatively; (ii) to deduce key factors in the maintenance of Esperanto in order to inform efforts for language support for Emilian; and (iii) to reveal the usefulness of a framework of interconnectedness in contexts of language endangerment. Adopting a published paper format, this thesis contains five self-contained journal articles: one of theoretical nature where the triangulation model designed to observe language attitudes is presented, and four of empirical content where analyses and findings are discussed to answer research questions. Following a triangulation of methods and of results, in this thesis I conclude that: (i) a positive correlation exists between language attitudes and language maintenance in both communities; (ii) Esperanto is being maintained in all domains investigated while Emilian is only meaningfully used in the local, physical environment; (iii) to successfully achieve language maintenance a balance of positive attitudes, competence, and use must be restored; and (iv) the concept of interconnectedness can serve as a practical strategy to foster reconnection with both language and green space.
Konzepte der Filmbildung und der pädagogische Widerwille gegen den Seh-Sinn
Creators: name: Vollbrecht, Ralf
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2014

description: Gängige Konzepte der Filmbildung werden vorgestellt und in ihren pädagogischen Implikationen diskutiert. Dabei wird kritisch auf das Kanon-Konzept eingegangen sowie auf den vom Autor favorisierten Ansatz, Spielfilme auch als Gegenstand einer narrativen Pädagogik zu verstehen. Concepts of “Filmbildung“ (film education) and educational aversion to the visual sense Common concepts of film education are presented and discussed in their pedagogical implications. In particular, the canon concept is presented as well as the approach favored by the author to understand films as a subject of a narrative educational theory.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
Stability and instability of strange dwarfs
Creators: name: Di Clemente, Francesco
name: Drago, Alessandro
name: Char, Prasanta
name: Pagliara, Giuseppe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: More than 20 years ago, Glendenning, Kettner and Weber proposed the existence of stable white dwarfs with a core of strange quark matter. More recently, by studying radial modes, Alford, Harris and Sachdeva concluded instead that those objects are unstable. We aim to clarify this issue. We investigate the stability of these objects by looking at their radial oscillations while incorporating boundary conditions at the quark-hadron interface, corresponding to either a rapid or a slow conversion of hadrons into quarks. Our analysis shows that objects of this type are stable if the star is not strongly perturbed, and ordinary matter cannot transform into strange quark matter because of the Coulomb barrier separating the two components. On the other hand, ordinary matter can be transformed into strange quark matter if the star undergoes a violent process, as in the preliminary stages of a type Ia supernova, and this causes the system to become unstable and to collapse into a strange quark star. In this way, accretion-induced collapse of strange dwarfs can be facilitated, and km-sized objects with subsolar masses can be produced.
description: 5 pages, 6 figures. Version accepted for publication on A&A Letters
Power Efficient and Secure Full-Duplex Wireless Communication Systems
Creators: name: Ng, Derrick Wing Kwan
name: Sun, Yan
name: Schober, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we study resource allocation for a full-duplex (FD) radio base station serving multiple half-duplex (HD) downlink and uplink users simultaneously. The considered resource allocation algorithm design is formulated as a non-convex optimization problem taking into account minimum required receive signal-to-interference-plus-noise ratios (SINRs) for downlink and uplink communication and maximum tolerable SINRs at potential eavesdroppers. The proposed optimization framework enables secure downlink and uplink communication via artificial noise generation in the downlink for interfering the potential eavesdroppers. We minimize the weighted sum of the total downlink and uplink transmit power by jointly optimizing the downlink beamformer, the artificial noise covariance matrix, and the uplink transmit power. We adopt a semidefinite programming (SDP) relaxation approach to obtain a tractable solution for the considered problem. The tightness of the SDP relaxation is revealed by examining a sufficient condition for the global optimality of the solution. Simulation results demonstrate the excellent performance achieved by the proposed scheme and the significant transmit power savings enabled optimization of the artificial noise covariance matrix.
description: 6 pages, invited paper, IEEE Conference on Communications and Network Security (CNS) 2015 in Florence, Italy, on September 30, 2015
Do Career Judge Matters? Evidence from Central Jakarta Tipikor Court
Creators: name: Fadhlurrahman, Akmal
Publisher: name: Open Science Framework
Year: 2022

description: The aim of this study is to explore the relationship between the composition of career judges and judicial outcome in specialized corruption court of Central Jakarta, Indonesia. I exploit plausibly exogenous variation induced by amendment of the Corruption Crime Court Act in 2009 that requires every corruption cases judged by career and ad hoc judges, but the voting share of each judge type is predetermined but varied on a case-by-case basis. Using publicly available data from Court website, I will test whether defendants facing panel with career judges majority were given more lenient sentence in terms of prison time and monetary fine imposed to corruption case defendants. To determine whether the estimate can be interpreted causally, a randomization test will be conducted. For robustness checks, I will also estimate multiple alternative regression specifications, controlling for defendant characteristics, year fixed effects, and measure of judges’ background.
Co-Located Human-Human Interaction Analysis using Nonverbal Cues: A Survey
Creators: name: Beyan, Cigdem
name: Vinciarelli, Alessandro
name: Del Bue, Alessio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Automated co-located human-human interaction analysis has been addressed by the use of nonverbal communication as measurable evidence of social and psychological phenomena. We survey the computing studies (since 2010) detecting phenomena related to social traits (e.g., leadership, dominance, personality traits), social roles/relations, and interaction dynamics (e.g., group cohesion, engagement, rapport). Our target is to identify the nonverbal cues and computational methodologies resulting in effective performance. This survey differs from its counterparts by involving the widest spectrum of social phenomena and interaction settings (free-standing conversations, meetings, dyads, and crowds). We also present a comprehensive summary of the related datasets and outline future research directions which are regarding the implementation of artificial intelligence, dataset curation, and privacy-preserving interaction analysis. Some major observations are: the most often used nonverbal cue, computational method, interaction environment, and sensing approach are speaking activity, support vector machines, and meetings composed of 3-4 persons equipped with microphones and cameras, respectively; multimodal features are prominently performing better; deep learning architectures showed improved performance in overall, but there exist many phenomena whose detection has never been implemented through deep models. We also identified several limitations such as the lack of scalable benchmarks, annotation reliability tests, cross-dataset experiments, and explainability analysis.
description: This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive version was published in ACM Computing Surveys, https://doi.org/10.1145/3626516
Typen der Zeiterfahrung im Film „Das Ende des Regenbogens“
Creators: name: Vollbrecht, Ralf
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2014

description: Am Beispiel einer Filmanalyse zum Film „Das Ende des Regenbogens“ wird gezeigt, wie sich mit medienpädagogischen Mitteln pädagogische Themen erschließen lassen. Für den biografie-theoretischen Kontext des Filmseminars ist hier als Interpretationsperspektive die Zeiterfahrung von Jugendlichen gewählt worden. At the example of a film analysis to the film „Das Ende des Regenbogens“ (The End of the Rainbow) is shown how with media-educational means educational subjects can be opened. For the biography-theoretical context of the film seminar the time experience of young people has been chosen here as an interpretation perspective.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
Species Status of Neisseria gonorrhoeae: Evolutionary and Epidemiological Inferences from MLST
Creators: name: Sparling, P Frederick
Publisher: name: BioMed Central Ltd
Year: 2007

description: Abstract Background Various typing methods have been developed for Neisseria gonorrhoeae, but none provide the combination of discrimination, reproducibility, portability, and genetic inference that allows the analysis of all aspects of the epidemiology of this pathogen from a single data set. Multilocus sequence typing (MLST) has been used successfully to characterize the related organisms Neisseria meningitidis and Neisseria lactamica. Here, the same seven locus Neisseria scheme was used to characterize a diverse collection of N. gonorrhoeae isolates to investigate whether this method would allow differentiation among isolates, and to distinguish these three species. Results A total of 149 gonococcal isolates were typed and submitted to the Neisseria MLST database. Although relatively few (27) polymorphisms were detected among the seven MLST loci, a total of 66 unique allele combinations (sequence types, STs), were observed, a number comparable to that seen among isolate collections of the more diverse meningococcus. Patterns of genetic variation were consistent with high levels of recombination generating this diversity. There was no evidence for geographical structuring among the isolates examined, with isolates collected in Liverpool, UK, showing levels of diversity similar to a global collection of isolates. There was, however, evidence that populations of N. meningitidis, N. gonorrhoeae and N. lactamica were distinct, with little support for frequent genetic recombination among these species, with the sequences from the gdh locus alone grouping the species into distinct clusters. Conclusion The seven loci Neisseria MLST scheme was readily adapted to N. gonorrhoeae isolates, providing a highly discriminatory typing method. In addition, these data permitted phylogenetic and population genetic inferences to be made, including direct comparisons with N. meningitidis and N. lactamica. Examination of these data demonstrated that alleles were rarely shared among the three species. Analysis of variation at a single locus, gdh, provided a rapid means of identifying misclassified isolates and determining whether mixed cultures were present.
title: Design, Synthesis and Evaluation of Hybrid Intracellularly Targeted Anticancer and Antimicrobial Agents
Creators: name: Aziz, Kiran
Publisher: name: Edinburgh Napier University
Year: 2023

description: One of the most important barriers to the success of anticancer therapy is the dysregulation of apoptotic pathways that limit effectiveness of current chemotherapy. A long-term objective seeks to exploit links between apoptosis and the functions of mitochondria to favour apoptosis and thus circumvent mechanisms of multi-drug resistance.
The specific aims of this research are the synthesis, characterisation and evaluation of a series of novel anthraquinone-based, tri-partite hybrid DCA-ciprofloxacin-TPP compounds to repurpose clinically useful antibiotics as non-genotoxic anticancer agents; and towards the design of dual anticancer and antibacterial agents.
These hybrid compounds consist of 3 components: ciprofloxacin (a broad-spectrum clinically useful 2nd generation fluoroquinolone antibiotic), dichloroacetate (DCA, a metabolic inhibitor of mitochondrial oxidation), and a triphenylphosphonium (TPP) cationic group, a hydrophobic carrier group with delocalised charge, capable of passing through mitochondrial membranes and accumulating in this organelle.
Dichloroacetate (DCA) is characterised as an apoptosis inducer in cancer cells; specifically, its clean mechanism of action to inhibit the critical mitochondrial enzyme pyruvate dehydrogenase kinase 2 (PDK2).
Four members of the series code-named Aq-Pip-DCA, Aq-Pip-Lys(TFA)-NH-TPP, Aq-Pip-Lys(Cp-TFA)-NH-TPP, and Aq-Pip-Lys(Cp-DCA)-NH-TPP hybrids showed good antibacterial activity. Ciprofloxacin (CIPRO) conjugate Aq-Pip-Lys(Cp-TFA)-NH-TPP was the most potent agent to inhibit bacterial growth in both sensitive (ATCC47055) and resistant (LIB213) strains of Escherichia coli (MIC 0.5 and 8 mg/L, respectively), and in Staphylococcus aureus both sensitive (82) and resistant (83) strains with MIC values 4 and 64 mg/L. In preliminary experiments, compounds from the series have shown cytotoxic activity against the resistant HCT15 colon carcinoma cell line at micromolar concentrations. Ciprofloxacin-TPP-DCA hybrids could provide multi-targeted leads for the design of biologically active agents with dual anticancer and antimicrobial activities.
Non-steroidal Treatment of Cardiac Sarcoidosis: A Systematic Review
Creators: name: Oikonomou, Evangelos
name: Kattan, Cesia
name: Grimshaw, Alyssa
name: Young, Bryan
name: Miller, Edward
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Diseases
subject: Medicine and Health Sciences
subject: Cardiovascular Diseases

description: The treatment of cardiac sarcoidosis (CS) usually involves immunosuppressive therapy, despite a paucity of high quality of evidence demonstrating benefit. In most cases, glucocorticoid therapy remains the first-line immunosuppressive treatment, with serial 18F-FDG (fluorodeoxyglucose) PET (positron emission tomography) often used for the longitudinal assessment of treatment response. However, given the side effect profile of long-term glucocorticoid use as well as their variable efficacy, steroid-sparing treatment options, such as methotrexate, azathioprine, cyclophosphamide, mycophenolate mofetil (MMF) and anti-tumor necrosis factor (TNF) alpha therapies (infliximab, etanercept, adalimumab, certolizumab pegol) are increasingly used in CS. The aim of this systematic review is to evaluate the current evidence on the use of non-steroidal treatments in the management of CS, focusing on their cardiac efficacy and safety profile when used as adjunct or alternative therapies to glucocorticoid management.
Star formation properties of sub-mJy radio sources
Creators: name: Bonzini, M.
name: Mainieri, V.
name: Padovani, P.
name: Andreani, P.
name: Berta, S.
name: Bethermin, M.
name: Lutz, D.
name: Rodighiero, G.
name: Rosario, D.
name: Tozzi, P.
name: Vattakunnel, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the star formation properties of ~800 sources detected in one of the deepest radio surveys at 1.4 GHz. Our sample spans a wide redshift range (~0.1 - 4) and about four orders of magnitude in star formation rate (SFR). It includes both star forming galaxies (SFGs) and active galactic nuclei (AGNs), further divided into radio-quiet and radio-loud objects. We compare the SFR derived from the far infrared luminosity, as traced by Herschel, with the SFR computed from their radio emission. We find that the radio power is a good SFR tracer not only for pure SFGs but also in the host galaxies of RQ AGNs, with no significant deviation with redshift or specific SFR. Moreover, we quantify the contribution of the starburst activity in the SFGs population and the occurrence of AGNs in sources with different level of star formation. Finally we discuss the possibility of using deep radio survey as a tool to study the cosmic star formation history.
description: 18 pages, 14 figures, 1 table (available in its entirety as ancillary data)
Identifikation und Akzeptanz. Eignungskriterien für die medienpädagogische Filmarbeit mit Kindern – ein Seminar-Modell der Fachhochschule Münster (1998)
Creators: name: Schäfer, Horst
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2014

description: Dieter Baacke hat in seinem Artikel von 1981 für das Lernen aus Spielfilmen in der Pädagogik argumentiert. Peter Pleyer und Horst Schäfer haben dazu in den 1990er Jahren ein Seminar-Modell konzipiert, das Schäfer hier vorstellt. Das Seminar geht von dem handlungsorientierten Ansatz der Medienpädagogik zur Aneignung von Medienkompetenz – als Teilbereich kommunikativer Kompetenz – aus, die sich als kritischer, reflektierter, selbstbestimmter und kreativer Umgang mit Medien versteht. Kinder sind mit Medien vertraut; ihre Wirklichkeit ist durch die Erfahrung medialer Wahrnehmungen geprägt. Die medienpädagogische Filmarbeit setzt sich mit dieser visuellen Wahrnehmung auseinander und vermittelt über die Rezeption zielgruppengerechter Filme Fähigkeiten ästhetischer Urteilsbildung, Kritikfähigkeit, Erkenntnisse über Medienwirkungen und Hilfen zur Bewältigung medialer Einflüsse. In his article from 1981 Dieter Baacke has argued for learning from films in pedagogy. In addition, Peter Pleyer and Horst Schäfer have designed a seminar model in the 1990s, which Schäfer introduces here. The seminar is based on the action focused approach of media pedagogy for the acquisition of media literacy (Medienkompetenz) as a critical, reflective, self-determined and creative dealing with media. Children are familiar with media; their reality is shaped by the experience of media perceptions. The media pedagogical film education deals with these visual perceptions by means of the reception of films which are geared to the target group, and it promotes skills of aesthetic judgment, critical faculty, knowledge about media effects, and helps to deal with media influences.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 3 (2014): Medienpädagogik vorgestellt: Filmbildung und narrative Pädagogik (TU Dresden)
Searching for Ultra-Light Axions with Twisted Cavity Resonators of Anyon Rotational Symmetry with Bulk Modes of Non-Zero Helicity
Creators: name: Bourhill, J. F.
name: Paterson, E. C. I.
name: Goryachev, M.
name: Tobar, M. E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Möbius-ring resonators stem from a well-studied and fascinating geometrical structure that features a one-sided topology; the Möbius strip, and have been shown to exhibit fermion rotational symmetry with respect to a ring resonator with no twist (which exhibits boson rotational symmetry) (see PhysRevLett.101.247701). Here, we present a new type of resonator through the formation of twisted hollow structures using equilateral triangular cross-sections, which leads to the realization of a cavity with anyon rotational symmetry. Unlike all previous cavity resonators, the anyon resonator permits the existence of bulk resonant modes that exhibit non-zero electromagnetic helicity in vacuo, with a non-zero overlap of the electric and magnetic mode eigenvectors, $\int \mathbf{E}_p\cdot\mathbf{B}_p~dτ$, integrated over the cavity volume. In the upconversion limit, we show that these non-zero helical modes couple naturally to ultra-light dark matter axions within the bandwidth of the resonator by adding amplitude-modulated sidebands through the axion-photon chiral anomaly. Thus, we show a sensitive ultra-light dark matter experiment may be realized by implementing such a resonator in an ultra-stable oscillator configuration and searching for signals in the Fourier spectrum of amplitude fluctuations. This removes the typical requirement for an external magnetic field and therefore permits the use of superconducting materials to reduce surface losses and enhance sensitivity to axions.
description: New expanded version
Effect of prostaglandin E2 injection on the structural properties of the rat patellar tendon
Creators: name: Afshari, Hessam M
name: Dahners, Laurence
name: Ferry, Scott T
name: Weinhold, Paul S.
name: Lee, Justin A
Publisher: name: BioMed Central Ltd
Year: 2012

description: Abstract Background Increased tendon production of the inflammatory mediator prostaglandin E2 (PGE2) has been suggested to be a potential etiologic agent in the development of tendinopathy. Repeated injection of PGE2 into tendon has been proposed as a potential animal model for studying treatments for tendinopathy. In contrast, nonsteroidal anti-inflammatory drugs (NSAIDs) which inhibit PGE2 production and are commonly prescribed in treating tendinopathy have been shown to impair the healing of tendon after acute injury in animal models. The contradictory literature suggests the need to better define the functional effects of PGE2 on tendon. Our objective was to characterize the effects of PGE2 injection on the biomechanical and biochemical properties of tendon and the activity of the animals. Our hypothesis was that weekly PGE2 injection to the rat patellar tendon would lead to inferior biomechanical properties. Methods Forty rats were divided equally into four groups. Three groups were followed for 4 weeks with the following peritendinous injection procedures: No injection (control), 4 weekly injections of saline (saline), 4 weekly injections of 800 ng PGE2 (PGE2-4 wks). The fourth group received 4 weekly injections of 800 ng PGE2 initially and was followed for a total of 8 weeks. All animals were injected bilaterally. The main outcome measurements included: the structural and material properties of the patellar tendon under tensile loading to failure, tendon collagen content, and weekly animal activity scores. Results The ultimate load of PGE2-4 wks tendons at 4 weeks was significantly greater than control or saline group tendons. The stiffness and elastic modulus of the PGE2 injected tendons at 8 weeks was significantly greater than the control or saline tendons. No differences in animal activity, collagen content, or mean fibril diameter were observed between groups. Conclusions Four weekly peritendinous injections of PGE2 to the rat patellar tendon were not found to be an effective model of clinical tendinopathy. In contrast, improved structural and material properties of the patellar tendon were found after PGE2 injection. While PGE2 has been thought to have a contributory role in the development of tendinopathy and anti-inflammatory medications remain a common treatment, our results suggest a positive role of PGE2 in tendon remodeling in some circumstances.