cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Towards a "chassis" for bacterial magnetosome biosynthesis : genome streamlining of Magnetospirillum gryphiswaldense by multiple deletions
Creators: name: Zwiener, Theresa
name: Dziuba, Marina
name: Mickoleit, Frank
name: Rückert, Christian
name: Busche, Tobias
name: Kalinowski, Jörn
name: Uebe, René
name: Schüler, Dirk
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Magnetospirillum gryphiswaldense
subject: Magnetotactic bacteria
subject: Magnetosomes
subject: Genome reduction
subject: Chassis
subject: IS elements
subject: 570

description: Abstract Background: Because of its tractability and straightforward cultivation, the magnetic bacterium Magnetospirillum gryphiswaldense has emerged as a model for the analysis of magnetosome biosynthesis and bioproduction. However, its future use as platform for synthetic biology and biotechnology will require methods for large-scale genome editing and streamlining. Results: We established an approach for combinatory genome reduction and generated a library of strains in which up to 16 regions including large gene clusters, mobile genetic elements and phage-related genes were sequentially removed, equivalent to ~ 227.6 kb and nearly 5.5% of the genome. Finally, the fragmented genomic magnetosome island was replaced by a compact cassette comprising all key magnetosome biosynthetic gene clusters. The prospective ’chassis’ revealed wild type-like cell growth and magnetosome biosynthesis under optimal conditions, as well as slightly improved resilience and increased genetic stability. Conclusion: We provide first proof-of-principle for the feasibility of multiple genome reduction and large-scale engineering of magnetotactic bacteria. The library of deletions will be valuable for turning M. gryphiswaldense into a microbial cell factory for synthetic biology and production of magnetic nanoparticles.
MAMLAKATLAR XORIJIY TOG'RIDAN TO'G'RI INVESTITSIYALARNI JALB QILISHIGA TA'SIR KO'RSATUVCHI OMILLAR TAHLILI
Creators: name: Tolibjonov, Xurshidbek
Publisher: name: Zenodo
Year: 2023

description: Ushbu tadqiqot orqali biz to'g'ridan-to'g'ri investitsiyalar haqida yaxshiroq tushunish uchun to'g'ridan-to'g'ri investitsiya nima ekanligini, to'g'ridan-to'g'ri investitsion investitsiyalar usuli, to'g'ridan-to'g'ri investitsiya turlarini bilib olamiz. Bizga shuningdek, to'g'ridan-to'g'ri investitsiyalarning global tendentsiyasi, turli mamlakatlarning to'g'ridan-to'g'ri xorijiy investitsiyalarni qabul qiluvchi davlat va investor davlat sifatidagi pozitsiyasi ma'lum. Shuningdek,  maqolada asosan rivojlangan mamlakatlarda to'g'ridan-to'g'ri investitsiyalarning iqtisodiy rivojlanishdagi rolini o'rgandik.
Perturbation theory of linear systems with applications to structured epidemic models
Creators: name: Hossain, Md Tareque
Publisher: name: University of British Columbia
Year: 2023

description: We explore the impact of parameter changes on infection spread within structured populations. We study perturbations of linear models in both discrete and continuous time. By interpreting the resulting formulas in the context of an associated Markov chain, new insights are gained. Specifically, we explain how the rate of change of key quantities, that we represent with the so-called canonical flow, is determined by expected hitting times of cor- responding states in the Markov chain, from different initial distributions. We give intuitive direct proofs of known results and obtain novel formulas in the case of a general primitive or irreducible Metzler matrix. We apply our results to two models from the literature: the fast pathogen movement limit of a structured model of Cholera spread, and the slow-fast decomposition of critical structured SIR models near the disease-free set. We explain how the latter context can be used to model the effects of control measures with uncontrolled response variables.
Additional file 1 of Carotenoid biosynthesis is associated with low-temperature adaptation in Rhodosporidium kratochvilovae
Creators: name: Guo, Rui
name: Liu, Tao
name: Guo, Caina
name: Chen, Gongshui
name: Fan, Jingdie
name: Zhang, Qi
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Table S1. The sequences of promoter PRKU6a and promoter PRKU6b. Supplementary Table S2. The sequence of codon-optimized Cas9-NLS-6*His. Table S3. The sequence of sgRNA of RKCrtYB used in the present study. Supplementary Table S4. Primers used in the present study.
title: Diversitätssensible und diskriminierungskritische Lehre gestalten
title: Handreichung für Lehrende
titleType: AlternativeTitle
Creators: name: AG Diversität Am IMIS, Universität Osnabrück
name: Ullmann, Johanna
name: Segadlo, Nadine
name: Hanewinkel, Vera
name: Berlinghoff, Marcel
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Diversität
subject: Diskriminierungskritik
subject: Didaktik
subject: Hochschullehre
subject: Sprachsensibilität
subject: 370 - Bildung und Erziehung
subject: 81.61 - Didaktik, Hochschuldidaktik

description: Hochschullehre findet nicht – und immer weniger – in gesellschaftlich homogenen Gruppen statt. Gleichwohl ist die Beschäftigung mit Diversität an Hochschulen selten selbstverständlich Teil der didaktischen Gestaltung von Lehrveranstaltungen. Dabei sind im Rahmen von diversitätssensibler Lehre über fachliche und grundlegende (hochschul)pädagogische Fragen hinaus weitere Aspekte zu beachten. Um dafür ein Bewusstsein zu schaffen und, trotz häufig fehlender zeitlicher Ressourcen auf Seiten der Lehrenden, eine Auseinandersetzung mit der Thematik zu ermöglichen, bietet dieses Working Paper in Form einer Handreichung einen Einstieg. Was bedeutet es, sich mit Diversität in der Hochschullehre auseinanderzusetzen? Welche Herausforderungen sind mit dem Anspruch, Lehrveranstaltungen bewusst an den unterschiedlichen Voraussetzungen der Teilnehmenden zu orientieren, verbunden? Wie kann die eigene Lehre in der Praxis diversitätssensibel und diskriminierungskritisch gestaltet werden? Die Handreichung will Anregungen geben, Reflexionsprozesse anstoßen und das Bewusstsein und Verständnis für Diversität und Ungleichheitsverhältnisse im Lehr-Lern-Setting schärfen. Sie beinhaltet konkrete Handlungsimpulse für die Vorbereitung, Durchführung und Nachbereitung von diversitätssensiblen Lehrveranstaltungen. Dies bietet die Chance, zum Abbau von Diskriminierung und Ausschlüssen im Hochschulkontext beizutragen – und letztlich die Qualität der Lehre zu verbessern.
title: Hitze in Städten – Quantifizierung, Warnsysteme und Hitzeaktionspläne zum Schutz der menschlichen Gesundheit
Creators: name: Matzarakis, Andreas
Publisher: name: Deutscher Wetterdienst
Year: 2023

description: Promet 106, Beitrag 6
description: Die Human-Biometeorologie ist ein Teilbereich der Biometeorologie, welcher die Auswirkungen der atmosphärischen Umwelt auf den Menschen behandelt. Dabei werden nicht nur der globale Klimawan-del, sondern auch meteorologische Extremsituationen (z. B. Hitzewellen) sowie langfristige Planungsas-pekte, wie die Gestaltung von Stadtquartieren oder auch Grünflächen betrachtet. Es werden Methoden angewendet, die über einzelne meteorologische Größen hinausgehen und die eine interdisziplinäre Be-trachtungsweise und Umsetzung erfordern. Bestes Beispiel dazu ist die Entwicklung von Hitzewarnsys-temen, welche auch Untersuchungsaspekte der Bewohner:innen in Städten, Merkmale der urbanen Wärmeinsel sowie der Innenräume beinhalten. Die Umsetzung kann mit Hilfe von thermisch objektiven Bewertungsgrößen durchgeführt werden, die auch auf unterschiedlichen Planungsebenen und in Gestal-tungsmöglichkeiten von Gebäuden und Außenanlagen einfließen können.
Radio halos in nearby (z < 0.4) clusters of galaxies
Creators: name: Giovannini, G.
name: Bonafede, A.
name: Feretti, L.
name: Govoni, F.
name: Murgia, M.
name: Ferrari, F.
name: Monti, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Intra-Cluster Medium is characterized by thermal emission, and by the presence of large scale magnetic fields. In some clusters of galaxies a diffuse non-thermal emission is also present, located at the cluster center and named radio halo. These sources indicate the existence of relativistic particles and magnetic fields in the cluster volume. In this paper we collect data on all known nearby cluster radio halos (z < 0.4), to discuss their statistical properties and to investigate their origin. We searched for published data on radio halos and reduced new and archive VLA data to increase the number of known radio halos. We present data on 31 radio halos, 1 new relic source, and 1 giant filament. We note the discovery of a small size diffuse radio emission in a cluster (A1213) with very low X-ray luminosity. Among statistical results we confirm the correlation between the average halo radio spectral index and the cluster temperature. We also discuss the high percentage of clusters where both a relic and a radio halo is present. The sample of radio halos discussed here represents the population of radio halos observable with present radio telescopes. The new telescope generation is necessary for a more detailed multifrequency study, and to investigate the possible existence of a population of radio halos with different properties.
description: 16 pages, 17 color figures. Accepted for the publication in Astronomy and Astrophysics. A version with full resolution figures is available at http://www.ira.inaf.it/~ggiovann/
Support points of locally optimal designs for nonlinear models with two parameters
Creators: name: Yang, Min
name: Stufken, John
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 62K05 (Primary) 62J12 (Secondary)

description: We propose a new approach for identifying the support points of a locally optimal design when the model is a nonlinear model. In contrast to the commonly used geometric approach, we use an approach based on algebraic tools. Considerations are restricted to models with two parameters, and the general results are applied to often used special cases, including logistic, probit, double exponential and double reciprocal models for binary data, a loglinear Poisson regression model for count data, and the Michaelis--Menten model. The approach, which is also of value for multi-stage experiments, works both with constrained and unconstrained design regions and is relatively easy to implement.
description: Published in at http://dx.doi.org/10.1214/07-AOS560 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Liocephalus trachycephalus Gray
Creators: name: Müller, F
Publisher: name: Zenodo
Year: 1885
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Squamata
Sauria
Leiocephalidae
Liocephalus
Liocephalus trachycephalus

description: *Liocephalus trachycephalus Gray liz.
Intac (Ecuador) v. F M. [1]
description: Published as part of Müller, F, 1885, Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums, pp. 668-717 in Verhandlungen der Naturforschenden Gesellschaft in Basel. 7 (3) on page 710, DOI: 10.5962/bhl.part.2388, http://zenodo.org/record/15183591
Quasinormal modes of a dyonic black hole in Einstein-Euler-Heisenberg theory
Creators: name: Kala, Shubham
name: Negi, Abhishek
name: Nandan, Hemwati
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this study, we investigate the quasinormal modes of a non-rotating dyonic black hole within the framework of Einstein-Euler-Heisenberg theory. We present a detailed analysis focuses on understanding the influence of dyonic charges on the oscillatory properties of these BHs. The quasinormal modes are calculated to explore the interplay between the dyonic charge and the characteristic frequencies of perturbations. The results are then systematically compared with those of black holes possessing purely electric or purely magnetic charges in the Einstein-Euler-Heisenberg framework. This comparison highlights the unique signatures and dynamic behavior introduced by the presence of dyonic charges, offering deeper insights into the properties of black holes in nonlinear electrodynamics theories.
description: 14 pages, 12 figures, 6 tables
Light-ion production in the interaction of 96 MeV neutrons with carbon
Creators: name: Tippawan, U.
name: Pomp, S.
name: Blomgren, J.
name: Dangtip, S.
name: Gustavsson, C.
name: Klug, J.
name: Nadel-Turonski, P.
name: Nilsson, L.
name: Österlund, M.
name: Olsson, N.
name: Jonsson, O.
name: Prokofiev, A. V.
name: Renberg, P. -U.
name: Corcalciuc, V.
name: Watanabe, Y.
name: Koning, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Double-differential cross sections for light-ion (p, d, t, 3He and alpha) production in carbon induced by 96 MeV neutrons have been measured at eight laboratory angles from 20 degrees to 160 degrees in steps of 20 degrees. Experimental techniques are presented as well as procedures for data taking and data reduction. Deduced energy-differential, angle-differential and production cross sections are reported. Experimental cross sections are compared with theoretical reaction model calculations and experimental data in the literature. The measured particle data show marked discrepancies from the results of the model calculations in spectral shape and magnitude. The measured production cross sections for protons, deuterons, tritons, 3He, and alpha particles support the trends suggested by data at lower energies.
description: 40 pages, 18 figures, 3 tables
Entanglement between distant qubits in cyclic XX chains
Creators: name: Canosa, N.
name: Rossignoli, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We evaluate the exact concurrence between any two spins in a cyclic XX chain of n spins placed in a uniform transverse magnetic field, both at zero and finite temperature, by means of the Jordan-Wigner transformation plus a number parity projected statistics. It is shown that while at T=0 there is always entanglement between any two spins in a narrow field interval before the transition to the aligned state, at low but non-zero temperatures the entanglement remains non-zero for arbitrarily high fields, for any pair separation L, although its magnitude decreases exponentially with the field. It is also demonstrated that all associated limit temperatures approach a constant non-zero value in this limit, which decreases as 1/L^2 for L<
description: 8 pages, 6 figures
Modeling the High-z Universe: Probing Galaxy Formation
Creators: name: Khochfar, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss how the conditions at high redshift differ from those at low redshift, and what the impact is on the galaxy population. We focus in particular on the role of gaseous dissipation and its impact on sustaining high star formation rates as well as on driving star-bursts in mergers. Gas accretion onto galaxies at high redshifts occurs on a halo dynamical time allowing for very efficiently sustained star formation. In addition cold accretion flows are able to drive turbulence in high redshift disks at the level observed if at least 20% of the accretion energy is converted into random motion in the gaseous disk. In general we find that the fraction of gas involved in galaxy mergers is a strong function of time and increases with redshift. A model combining the role of dissipation during mergers and continued infall of satellite galaxies allows to reproduce the observed size-evolution of early-type galaxies with redshift. Furthermore we investigate how the evolution of the faint-end of the luminosity function can be explained in terms of the evolution of the underlying dark matter evolution.
description: To appear in "Reviews in Modern Astronomy", volume 21, Proceedings of JENAM 2008, Vienna
Application of Machine Learning in Low Back Pain Rehabilitation
Creators: name: Phan, Trung Chi
Publisher: name: Swinburne
Year: 2024

description: This research investigates how machine learning can aid in understanding chronic low back pain, a common and debilitating condition. By analysing body movements during lifting, the study identifies distinct patterns in individuals with and without back pain. It also explores the potential of machine learning to predict how treatment can improve these movements. This research could help personalize rehabilitation programs for those with chronic back pain, leading to more effective treatment and improved quality of life.
Passage of radiation through wormholes
Creators: name: Doroshkevich, Andrey
name: Hansen, Jakob
name: Novikov, Igor
name: Shatskiy, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate numerically the process of the passage of a radiation pulse through a wormhole and the subsequent evolution of the wormhole that is caused by the gravitational action of this pulse. The initial static wormhole is modeled by the spherically symmetrical Armendariz-Picon solution with zero mass. The radiation pulses are modeled by spherically symmetrical shells of self-gravitating massless scalar fields. We demonstrate that the compact signal propagates through the wormhole and investigate the dynamics of the fields in this process for both cases: collapse of the wormhole into the black hole and for the expanding wormhole.
description: 18 Pages, 13 figures, minor typos corrected, updated references
title: Thermodynamic analysis of the uptake of a protein in a spherical polyelectrolyte brush
Creators: name: Walkowiak, Jacek
name: Lu, Yan
name: Gradzielski, Michael
name: Zauscher, Stefan
name: Ballauff, Matthias
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften

description: A thermodynamic study of the adsorption of Human Serum Albumin (HSA) onto spherical polyelectrolyte brushes (SPBs) by isothermal titration calorimetry (ITC) is presented. The SPBs are composed of a solid polystyrene core bearing long chains of poly(acrylic acid). ITC measurements done at different temperatures and ionic strengths lead to a full set of thermodynamicbinding constants together with the enthalpies and entropies of binding. The adsorption of HSA onto SPBs is described with a two-step model. The free energy of binding Delta Gb depends only weakly on temperature because of a marked compensation of enthalpy by entropy. Studies of the adsorbed HSA by Fourier transform infrared spectroscopy (FT-IR) demonstrate no significant disturbance in the secondary structure of the protein. The quantitative analysis demonstrates that counterion release is the major driving force for adsorption in a process where proteins become multivalent counterions of the polyelectrolyte chains upon adsorption. A comparison with the analysis of other sets of data related to the binding of HSA to polyelectrolytes demonstrates that the cancellation of enthalpy and entropy is a general phenomenon that always accompanies the binding of proteins to polyelectrolytes dominated by counterion release.
On the Stokes problem with non-zero divergence
Creators: name: Filonov, Nikolay
name: Shilkin, Tim
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the strong solvability of the nonstationary Stokes problem with non-zero divergence in a bounded domain.
title: Starkregenereignisse im urbanen Raum – Monitoring auf Basis von Messstationen und Wetterradar
Creators: name: Winterrath, Tanja
name: Junghänel, Thomas
name: Lengfeld, Katharina
name: Walawender, Ewelina
name: Weigl, Elmar
Publisher: name: Deutscher Wetterdienst
Year: 2023

description: Promet 106, Beitrag 3
description: Für die Planung, Bemessung und den Bau wasserwirtschaftlicher Anlagen im urbanen Raum bildet die stationsbasierte Starkregenstatistik KOSTRA-DWD bis heute die amtliche Grundlage. Darüber hinaus bieten seit gut zwei Jahrzehnten Wetterradardaten wichtige zusätzliche Informationen zur flächenhaften Niederschlagsverteilung. Der Ereigniskatalog CatRaRE listet – basierend auf der radarbasierten Niederschlagsklimatologie RADKLIM – alle Stark- und Dauerregenereignisse seit 2001 auf und bildet die Grundlage für räumliche statistische Analysen extremer Niederschlagsereignisse. Die Auswertung des Katalogs für den urbanen Raum zeigt eine hohe direkte Betroffenheit der Bevölkerung. Etwa drei Viertel aller Bundesbürgerinnen und -bürger waren in den Jahren 2001 bis 2021 von 5 bis 12 extremen Niederschlagsereignissen direkt betroffen; die Hälfte der Bevölkerung erlebte mindestens ein Ereignis mit einem flächengemittelten Starkregenindex von 5. In den betrachteten 21 Jahren war München unter den Großstädten mit mehr als 300.000 Einwohnerinnen und Einwohnern am stärksten von extremen Niederschlagsereignissen betroffen. Die flächenhafte Erfassung und Analyse von Starkniederschlägen bieten perspektivisch die Möglichkeit, klimatologische Effekte der Städte auf den Niederschlag zu untersuchen. Eine erste Fallstudie für die Stadt Bremen gibt einen Hinweis auf eine potenziell erhöhte Anzahl von Starkniederschlagsereignissen im Lee der Stadt.
An Investigation of Hadronization Mechanism at $Z^{0}$ Factory
Creators: name: Jin, Yi
name: Si, Zongguo
name: Xie, Qubing
name: Yao, Tao
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We briefly review the hadronization pictures adopted in the LUND String Fragmentation Model(LSFM), Webber Cluster Fragmentation Model(WCFM) and Quark Combination Model(QCM), respectively. Predictions of hadron multiplicity, baryon to meson ratios and baryon-antibaryon flavor correlations, especially related to heavy hadrons at $Z^0$ factory obtained by LSFM and QCM are reported.
description: 18 pages, 6 figures. accepted by Sci China Phys Mech Astron
Magical realism as a strategy to embody trauma in comics for young readers
Creators: name: Navascués, Logaine
Publisher: name: University of British Columbia
Year: 2023

description: Both magical realist fiction and the graphic novel as a form have been widely recognized as counternarratives with the power to destabilize the dominant literary forms¬ of the Western world by their ability to showcase underrepresented voices and stories from the margins. Their relationship to trauma has also been studied in depth, as they allow their creators to re-present the unrepresentable nature of historic, collective or personal traumatic events. However, the interaction between comics and magical realism has not yet garnered much academic attention, let alone in relation to literature for young readers. With this thesis, I aim to bridge this gap by analyzing how magical realist fiction and the graphic novel work together to highlight the traumatic experiences of marginal voices in children’s literature. In my academic paper, I first identify the key elements present in magical realist literature following Wendy B. Faris’s studies, and the underlying principles of comics creation based on Scott McCloud’s seminal work on the form, and explore their relationship to trauma. I then discuss other visions and versions of trauma of growing up, including the effects of bullying, racial discrimination, immigration and intergenerational trauma. These findings, along with Gunther Kress and Theo van Leeuwen’s visual grammar, serve as a framework for my close reading of Kiku Hughes’ young adult graphic novel Displacement through a magical realist lens. Using this same framework, I then reflect on my creative process writing the middle grade graphic novel Nuna and the Nose. The story combines Nuna’s first-person point of view and a first-nose perspective to showcase Nuna’s fragmented sense of identity. This magical realist device enables me to address the complexity of Nuna’s traumatic experience as an immigrant dealing with bullying, self-image issues and anxiety, and her disconnect from her own roots. This hybrid thesis highlights the power of combining the multimodal form of comics and the multidimensional scope of magical realism to portray the voices of diverse, underrepresented characters in their multilayered experience of trauma.
Additional file 1 of Proposed prognostic subgroups and facilitated clinical decision-making for additional locoregional radiotherapy in de novo metastatic nasopharyngeal carcinoma: a retrospective study based on recursive partitioning analysis
Creators: name: Yao, Yuyi
name: Sun, Xuesong
name: Huang, Huageng
name: Wang, Zhao
name: Fang, Xiaojie
name: Chen, Meiting
name: Chen, Zegeng
name: Weng, Huawei
name: Guo, Chengcheng
name: Hong, Huangming
name: Huang, He
name: Lin, Tongyu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 1: Table S1 Clinical characteristics of different risk groups in the training cohort.
title: DEAL und eine Zwischenbilanz über die Entwicklung der Zeitschrift
Creators: name: Brand, Ralf
name: Voelcker-Rehage, Claudia
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 330 Wirtschaft
subject: 796 Sportarten, Sportspiele

description: Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe; 721
Grid Technologies
Creators: name: Stinga, Delia Sabina
Publisher: name: arXiv
Year: 2009
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: This paper contains the most important aspects of computing grids. Grid computing allows high performance distributed systems to act as a single computer. An overview of grids structure and techniques is given in order to understand the way grids work.
description: 6 pages, exposed on 2nd "European Conference on Computer Science & Applications" - XA2008, Timisoara, Romania
ADAD2: a testis-specific RNA binding protein redefining the roles and relationships of RNA granules and their components in the murine male germline
Creators: name: Chukrallah, Lauren G.
Publisher: name: No Publisher Supplied
Year: 2023

description: Male germ cells rely on unique and complex RNA biology throughout their differentiation, regulating mRNAs at both the transcriptional and translational level. These processes rely on RNA binding proteins, some of which are testis specific. Many of these proteins form non-membrane enclosed cytoplasmic granules, often in conjunction with other RNA binding proteins. One such RNA binding protein, ADAD2, forms a granule in meiotic germ cells. Previous work has demonstrated the importance of ADAD2 in male fertility as loss of ADAD2 results in dramatic post-meiotic germ cell loss ultimately causing a lack of mature spermatozoa, though the molecular drivers of this loss have been unclear.I hypothesized that ADAD2 plays a key role in the regulation of the meiotic spermatocyte’s RNA landscape. To test this hypothesis, I leveraged the Ribotag model system to examine the impact of ADAD2 loss on the ribosome association of different transcripts in spermatocytes. I found ADAD2 loss impacts the production of several proteins, including MDC1, a key heterochromatin regulator. Despite proper initial establishment, spermatocytes fail to maintain chromatin compartmentalization. This results in dysregulation of the chromatin in late meiotic and post-meiotic cells and culminates in germ cell death. Given the importance of germ cell granules, I also sought to examine the role of the cytoplasmic structure formed by ADAD2. I leveraged immunoprecipitation with mass spectrometry and Western blotting to identify potential components of this structure. Immunofluorescence revealed both the existence of different sub-populations of these granules, as well as their localization patterns. Confocal visualization revealed a funnel-like structure for a subset of these granules, as well as the association of this subtype with the membrane of the endoplasmic reticulum. Together, the findings in this dissertation implicate ADAD2 in translational regulation, specifically in the context of the larger granule. These data shed new light on germ cell granules, suggesting both interrelation between subpopulations as well as a novel role for these structures in the germ cell. This work also provides a more holistic view of RNA binding proteins, establishing a foundation for future studies on association, localization, and function.
Modeling the Longitudinal Asymmetry in Sunspot Emergence -- the Role of the Wilson Depression
Creators: name: Watson, Fraser
name: Fletcher, Lyndsay
name: Dalla, Silvia
name: Marshall, Stephen
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The distributions of sunspot longitude at first appearance and at disappearance display an east-west asymmetry that results from a reduction in visibility as one moves from disk centre to the limb. To first order, this is explicable in terms of simple geometrical foreshortening. However, the centre-to-limb visibility variation is much larger than that predicted by foreshortening. Sunspot visibility is also known to be affected by the Wilson effect: the apparent dish shape of the sunspot photosphere caused by the temperature-dependent variation of the geometrical position of the tau=1 layer. In this article we investigate the role of the Wilson effect on the sunspot appearance distributions, deducing a mean depth for the umbral tau=1 layer of 500 to 1500 km. This is based on the comparison of observations of sunspot longitude distribution and Monte Carlo simulations of sunspot appearance using different models for spot growth rate, growth time and depth of Wilson depression.
description: 18 pages, 10 figures, in press (Solar Physics)
title: Lokalklimatische Auswirkungen der urbanen Energieversorgung
Creators: name: Emeis, Stefan
Publisher: name: Deutscher Wetterdienst
Year: 2023

description: Promet 106, Beitrag 9
description: Städte sind Schwerpunkte des anthropogenen Energiebedarfs. Der Beitrag stellt urbane Aspekte der Energiemeteorologie und mögliche Rückwirkungen der Energienutzung auf das Stadtklima dar. Direkte solare Energie, Windkraft, Wasserkraft, Geothermie, Wärmepumpen, Biomassenutzung und der Energiebedarf für den Verkehr werden separat angesprochen. Einige Hinweise auf energieeffiziente Baumaterialien und eine energetisch angepasste Bauplanung sowie ein kurzer Ausblick beschließen den Beitrag.
In the heat of the moment : how does exposure to news about extreme weather events shape the general public’s climate change mitigation and adaptation priorities?
Creators: name: Pustova, Margaryta
Publisher: name: University of British Columbia
Year: 2023

description: The increasing frequency and magnitude of extreme weather events are among the manifestations of anthropogenic climate change most notable to the public. Exposure to these events has been shown to heighten individuals’ concern about climate change, motivate personal-level climate actions, and enhance support for climate policies. However, the tendency towards single-action bias coupled with limited resources may lead individuals to prioritize either adaptation or mitigation actions in the wake of weather extremes. Until now, the effect of extreme weather events on climate action preferences remained largely underexplored. To address this research gap, this dissertation explored how news of extreme weather events affect individuals’ priorities concerning mitigation and adaptation actions. These priorities are explored both in terms of the intentions to undertake personal-level actions and support for governmental initiatives. To achieve this, a representative sample of the United States and Canadian population (N=1058) was recruited to participate in an experimental survey assessing the effect of exposure to news texts about record-breaking heatwaves, varied by geographical proximity and severity, on personal and collective-level climate action preferences. The results show that news about a weather extreme prompts individuals to prioritize personal- and governmental-level adaptation measures aimed at preparing for the effect of the type of event reported in the news article. This relationship is not affected by the geographical proximity or the presence of casualties associated with the portrayed heatwave. The findings suggest that extreme weather events present opportunities for policymakers to advance climate change adaptation initiatives and for climate change communicators to educate the public on effective adaptation actions that do not exacerbate emissions, while stressing the importance of emissions reduction actions.
The reflectivity of relativistic ultra-thin electron layers
Creators: name: Wu, Hui-Chun
name: Meyer-ter-Vehn, Jürgen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The coherent reflectivity of a dense, relativistic, ultra-thin electron layer is derived analytically for an obliquely incident probe beam. Results are obtained by two-fold Lorentz transformation. For the analytical treatment, a plane uniform electron layer is considered. All electrons move with uniform velocity under an angle to the normal direction of the plane; such electron motion corresponds to laser acceleration by direct action of the laser fields, as it is described in a companion paper. Electron density is chosen high enough to ensure that many electrons reside in a volume λ_R^3, where λ_R is the wavelength of the reflected light in the rest frame of the layer. Under these conditions, the probe light is back-scattered coherently and is directed close to the layer normal rather than the direction of electron velocity. An important consequence is that the Doppler shift is governed by γ_x=(1-(V_x/c)^2)^{-1/2} derived from the electron velocity component V_x in normal direction rather than the full γ-factor of the layer electrons.
description: 7 pages, 4 figures, submitted to the special issue "Fundamental Physics with Ultra-High Fields" in The European Physical Journal D
Galaxy clusters identified from the SDSS DR6 and their properties
Creators: name: Wen, Z. L.
name: Han, J. L.
name: Liu, F. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Clusters of galaxies in most previous catalogs have redshifts z<0.3. Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we identify 39,668 clusters in the redshift range 0.05< z <0.6 with more than eight luminous (M_r2\times10^{14} M_{\odot}) clusters of z<0.42. The false detection rate is ~5%. We obtain the richness, the summed luminosity, and the gross galaxy number within the determined radius for identified clusters. They are tightly related to the X-ray luminosity and temperature of clusters. Cluster mass is related to the richness and summed luminosity with M_{200}\propto R^{1.90\pm0.04} and M_{200}\propto L_r^{1.64\pm0.03}, respectively. In addition, 685 new candidates of X-ray clusters are found by cross-identification of our clusters with the source list of the ROSAT X-ray survey.
description: 18 pages, 27 figures, 2 tables. Further modefication on Table 1 and Table 2 after formal publication on ApJS. No changes on conclusions except for the number of clusters we found. The updated tables are available at "http://159.226.88.6/zmtt/wzl/CV_wen.htm"
Additional file 1 of A comparison of clinical characteristics of psychiatric inpatients in three hospitals from Western China and America
Creators: name: Jia, Min
name: An, Bang
name: Yan, Bin
name: Ma, Qingyan
name: Wen, Binglong
name: Zhao, Shanshan
name: Gao, Chengge
name: Ma, Xiancang
name: Zhang, Lili
name: Li, Bin
name: Zhang, Ping
name: Wang, Jian
name: Yu, Hong
name: Wang, Wei
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Neuroscience
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Cancer
Mental Health
Hematology
Virology

description: Additional file 1: Supplementary Table. Clinical characteristics between male and female inpatients in America hospital.
Simulations of the grand design galaxy M51: a case study for analysing tidally induced spiral structure
Creators: name: Dobbs, C. L.
name: Theis, C.
name: Pringle, J. E
name: Bate, M. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present hydrodynamical models of the grand design spiral M51 (NGC 5194), and its interaction with its companion NGC 5195. Despite the simplicity of our models, our simulations capture the present day spiral structure of M51 remarkably well, and even reproduce details such as a kink along one spiral arm, and spiral arm bifurcations. We investigate the offset between the stellar and gaseous spiral arms, and find at most times (including the present day) there is no offset between the stars and gas to within our error bars. We also compare our simulations with recent observational analysis of M51. We compute the pattern speed versus radius, and like the observations, find no single global pattern speed. We also show that the spiral arms cannot be fitted well by logarithmic spirals. We interpret these findings as evidence that M51 does not exhibit a quasi-steady density wave, as would be predicted by density wave theory. The internal structure of M51 derives from the complicated and dynamical interaction with its companion, resulting in spiral arms showing considerable structure in the form of short-lived kinks and bifurcations. Rather than trying to model such galaxies in terms of global spiral modes with fixed pattern speeds, it is more realistic to start from a picture in which the spiral arms, while not being simple material arms, are the result of tidally induced kinematic density `waves' or density patterns, which wind up slowly over time.
description: 23 pages, 20 figures, accepted for publication in MNRAS
title: The Citizens' Convention for Climate in France: An Introduction of Participatory Democracy into French Governance
Creators: name: Rozenberg, Daniel
Publisher: name: University of Kent
Year: 2021

description: In response to the 'Gilets Jaunes' movement, and the general sentiments of the elitism and illegitimacy of French government which sparked it, President Macron organised the Citizens' Convention for Climate (CCC): a participatory forum of 150 citizens, randomly selected to deliberate in a unique model of 'co-construction' with experts, which over the summer of 2020 produced 149 legislative proposals, including for constitutional amendment. The thesis explores the actual and potential impact of the CCC on French governance. It shows that, while the resulting projet de loi introduced by the French Government into the National Assembly resulted from the CCC's proposals-as opposed to the Conseil d'État which usually drafts the Government's proposed bills-the CCC did not actually replace the ordinary legislative procedure, as some proponents of citizens' assemblies would hope, but rather found its proposals thoroughly amended by it. In a deconstructive analysis, I will argue that the CCC's actual normative impact was limited by its consultative constitutional nature, within the broader context of a French Constitution haunted by the spectral traces of its colonial origins and its historical tradition of supreme executive power. However, the CCC nonetheless has the potential to impact the future of French governance, in particular due to the further institutionalisation of citizens' conventions already in progress in the polity.
title: Grün-blaue Infrastruktur für die Klimawandelanpassung der Stadt
Creators: name: Pauleit, Stephan
name: Erlwein, Sabrina
name: Linke, Simone
name: Rahman, Mohammad
name: Zölch, Teresa
name: Rötzer, Thomas
Publisher: name: Deutscher Wetterdienst
Year: 2023

description: Promet 106, Beitrag 8
description: Grünflächen und Gewässer können als eine grün-blaue Infrastruktur einen wichtigen Beitrag zur Anpassung von Städten an den Klimawandel leisten. Durch Verschattung und Verdunstungskühlung erhöhen sie den thermischen Komfort im Freiraum an heißen Tagen, durch Regenwasserrückhalt, -versickerung und -verdunstung entlasten sie die Kanalisation bei Starkregenereignissen. Untersuchungen in München haben gezeigt, dass in der dicht bebauten Innenstadt eine Erhöhung des Anteils der grün-blauen Infrastruktur auf 20 % bis 25 % Flächenanteil erforderlich ist, um die Hitzebelastungen nicht weiter zu verstärken. Bäume sind besonders wichtig und sollten bei Flächenmangel mit Fassadenbegrünung kombiniert werden. Detaillierte Untersuchungen von Stadtbäumen zeigen ihre erheblichen Ökosystemleistungen, die je nach Baumart stark variieren. Dachbegrünung ist besonders für den Regenwasserrückhalt erforderlich. Bauliche Nachverdichtung gefährdet die für die Klimawandelanpassung notwendige grün-blaue Infrastruktur. Bei frühzeitiger, umfassender und konsequenter Berücksichtigung über alle Planungsphasen hinweg bestehen aber durchaus gute Chancen, leistungsfähige grün-blaue Infrastrukturen in sich verdichtende Stadtquartiere zu integrieren. Dazu zählen die Sicherung vorhandener alter Baumbestände zur Kühlung der Freiräume tagsüber und die Offenhaltung von Durchlüftungskorridoren für die nächtliche Zufuhr von kühler Luft aus angrenzenden großen Grünflächen. Erforderlich sind neue Mobilitätskonzepte, die den Stellplatzbedarf im Straßenraum drastisch reduzieren und der Verzicht auf Tiefgaragen unter Grünflächen, um Großbäume zu erhalten und neu pflanzen zu können.
Radiative Spectra from Disk Corona and Inner Hot Flow in Black Hole X-ray Binaries
Creators: name: Kawabata, Ryoji
name: Mineshige, Shin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: To understand the origin of hard X-ray emissions from black hole X-ray binaries during their low/hard states, we calculate the X-ray spectra of black-hole accretion flow for the following three configurations of hot and cool media: (a) an inner hot flow and a cool outer disk (inner hot flow model), (b) a cool disk sandwiched by disk coronae (disk corona model), and (c) the combination of those two (hybrid model). The basic features we require for successful models are (i) significant hard X-ray emission whose luminosity exceeds that of soft X-rays, (ii) high hard X-ray luminosities in the range of (0.4 - 30) times 10^{37} erg s^{-1}, and (iii) the existence of two power-law components in the hard X-ray band with the photon indices of Gamma_s ~ 2 > Gamma_h, where Gamma_s and Gamma_h are the photon indices of the softer (<10 keV) and the harder (>10 keV) power-law components, respectively. Contribution by non-thermal electrons nor time-dependent evolution are not considered. We find that Models (a) and (b) can be ruled out, since the spectra are always dominated by the soft component, and since only one power-law component, at most, can be reproduced. Only Model (c) can account for sufficiently strong hard X-ray emissions, as well as the existence of the two power-law components, for a large ratio of the accretion rate in the corona to that in the thin disk. The outer disk corona (where the Compton y-parameter is smaller, y < 1) produces the softer power-law component with photon index of Gamma_s ~ 2, whereas the inner hot flow (where y gtrsim 1) generates the harder component with Gamma_h < 2. This model can also account for the observed relationship between the photon index and the reflection fraction.
description: 13 pages, 13 figures, accepted for publication in PASJ
Geometry and Matter Reduction in a 5D Kaluza-Klein Framework
Creators: name: Lacquaniti, Valentino
name: Montani, Giovanni
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider the Kaluza-Klein fields equations in presence of a generic 5D matter tensor which is governed by a conservation equation due to 5D Bianchi identities. Following a previous work, we provide a consistent approach to matter where the problem of huge massive modes is removed, without relaxing the compactification hypotheses; therefore we perform the dimensional reduction either for metric fields and for matter, thus identifying a pure 4D tensor term, a 4D vector term and a scalar one. Hence we are able to write down a consistent set of equations for the complete dynamics of matter and fields ; with respect to the pure Einstein-Maxwell system we now have two additional scalar field: the usual dilaton one plus a scalar source term. Some significant scenarios involving these terms are discussed and perspectives for cosmological applications are suggested.
description: to appear on IJMPA
title: Εκδίκηση
title: Revenge
titleType: AlternativeTitle
Creators: name: Παχίτης, Ιωάννης
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Εκδίκηση
Σενάριο

description: Η εργασία μου βασίζεται στο θέμα της Εκδίκησης. Περιλαμβάνει το σενάριο μεγάλου μήκους ταινίας και την θεωρητική υποστήριξη. Περίληψη Σεναρίου: Δύο 6χρονα, ο Άλεξ και η Ελένη ζούνε με τις μητέρες τους στην Λεμεσό. Χάνουν τις μητέρες τους. Μεγαλώνουν σε ορφανοτροφείο της Λεμεσού όπου και γνωρίζονται. Μετά από χρόνια μπαίνουν στην αστυνομία με σκοπό της αναζήτησης της αλήθειας. Η αλήθεια θα απαλύνει τις πληγές τους ή θα μεγαλώσει την θέληση τους για εκδίκηση;