cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Specificity and regulation of phosphotyrosine signaling through SH2 domains
Creators: name: Marasco, Michelangelo
name: Carlomagno, Teresa
Publisher: name: Amsterdam : Elsevier
Year: 2020
Subjects: subject: Binding specificity
subject: Phosphotyrosine
subject: pY signalling
subject: SH2 domain
subject: phosphotyrosine
subject: protein SH2
subject: Article
subject: binding affinity
subject: binding kinetics
subject: complex formation
subject: enzyme activity
subject: human
subject: phosphotyrosine signaling
subject: priority journal
subject: protein domain
subject: protein structure
subject: signal transduction
subject: thermodynamics
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: Phosphotyrosine (pY) signaling is instrumental to numerous cellular processes. pY recognition occurs through specialized protein modules, among which the Src-homology 2 (SH2) domain is the most common. SH2 domains are small protein modules with an invariant fold, and are present in more than a hundred proteins with different function. Here we ask the question of how such a structurally conserved, small protein domain can recognize distinct phosphopeptides with the breath of binding affinity, specificity and kinetic parameters necessary for proper control of pY-dependent signaling and rapid cellular response. We review the current knowledge on structure, thermodynamics and kinetics of SH2–phosphopeptide complexes and conclude that selective phosphopeptide recognition is governed by both structure and dynamics of the SH2 domain, as well as by the kinetics of the binding events. Further studies on the thermodynamic and kinetic properties of SH2–phosphopeptide complexes, beyond their structure, are required to understand signaling regulation. © 2020
Adiabatic transformation as a search tool for new topological insulators: distorted ternary Li$_2$AgSb-class semiconductors and related compounds
Creators: name: Lin, Hsin
name: Das, Tanmoy
name: Wang, Yung Jui
name: Wray, L. A.
name: Xu, S. -Y.
name: Hasan, M. Z.
name: Bansil, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that first-principles based adiabatic continuation approach is a very powerful and efficient tool for constructing topological phase diagrams and locating non-trivial topological insulator materials. Using this technique, we predict that the ternary intermetallic series Li$_2M'X$ where $M'$=Cu, Ag, Au, or Cd, and $X$=Sb, Bi, or Sn, hosts a number of topological insulators with remarkable functional variants and tunability. We also predict that several III-V semimetallic compounds are topologically non-trivial. We construct a topological phase diagram in the parameter space of the atomic numbers of atoms in Li$_2M'X$ compounds, which places a large number of topological materials presented in this work as well as in earlier studies within a single unified topological framework. Our results demonstrate the efficacy of adiabatic continuation as a useful tool for exploring topologically nontrivial alloying systems and for identifying new topological insulators even when the underlying lattice does not possess inversion symmetry, and the approaches based on parity analysis are not viable.
Supersymmetric Renyi Entropy
Creators: name: Nishioka, Tatsuma
name: Yaakov, Itamar
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider 3d N>= 2 superconformal field theories on a branched covering of a three-sphere. The Renyi entropy of a CFT is given by the partition function on this space, but conical singularities break the supersymmetry preserved in the bulk. We turn on a compensating R-symmetry gauge field and compute the partition function using localization. We define a supersymmetric observable, called the super Renyi entropy, parametrized by a real number q. We show that the super Renyi entropy is duality invariant and reduces to entanglement entropy in the q -> 1 limit. We provide some examples.
description: 39 pages, 4 figures
Widerstandsfeinstreifungen in tiegelgezogenen Si-Kristallen
Creators: name: Mühlbauer, A.
name: Kappelmeyer, R.
name: Keiner, F.
Publisher: name: Berlin, Boston : De Gruyter
Year: 1965
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
SSVOD: Semi-Supervised Video Object Detection with Sparse Annotations
Creators: name: Mahmud, Tanvir
name: Liu, Chun-Hao
name: Yaman, Burhaneddin
name: Marculescu, Diana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Despite significant progress in semi-supervised learning for image object detection, several key issues are yet to be addressed for video object detection: (1) Achieving good performance for supervised video object detection greatly depends on the availability of annotated frames. (2) Despite having large inter-frame correlations in a video, collecting annotations for a large number of frames per video is expensive, time-consuming, and often redundant. (3) Existing semi-supervised techniques on static images can hardly exploit the temporal motion dynamics inherently present in videos. In this paper, we introduce SSVOD, an end-to-end semi-supervised video object detection framework that exploits motion dynamics of videos to utilize large-scale unlabeled frames with sparse annotations. To selectively assemble robust pseudo-labels across groups of frames, we introduce \textit{flow-warped predictions} from nearby frames for temporal-consistency estimation. In particular, we introduce cross-IoU and cross-divergence based selection methods over a set of estimated predictions to include robust pseudo-labels for bounding boxes and class labels, respectively. To strike a balance between confirmation bias and uncertainty noise in pseudo-labels, we propose confidence threshold based combination of hard and soft pseudo-labels. Our method achieves significant performance improvements over existing methods on ImageNet-VID, Epic-KITCHENS, and YouTube-VIS datasets. Code and pre-trained models will be released.
Grassroots Economic Activism in Hard Times
Creators: name: Guidi, Riccardo
Publisher: name: Hannover : Leibniz Universität Hannover, Institut für Umweltplanung
Year: 2019
Subjects: subject: Economic crisis
subject: Resilience
subject: Urbanism
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: According to an authoritative literature (KOUSIS 2017, KOUSIS & PASHOU 2017), citizens of Southern European countries have developed “alternative forms of resilience” to cope with the hardship due to recession and austerity. This Chapter explores and questions this hypothesis. The first section illustrates the “alternative forms of resilience” perspective, second re-frames it into the more complex possible trends of grassroots economic activism in the shadow of crisis, third uses the case of alternative food networks in Italy in hard times to test the “alternative forms of resilience” hypothesis against competing ones. Although limited, the analysis shows that grassroots economic activism in times of crisis present a complex intertwine of persistencies and transformations. Some evolutions appear coherent with the “alternative forms of resilience” perspective, while some diverge.
title: Детская эргоурбонимия: русско-китайские параллели
Creators: name: Горяев, Сергей
name: Бай, Шаньшань
Publisher: name: Новгородский печатный двор
Year: 2019

description: Под детской эргоурбонимией понимаются названия учреждений и организаций, ориентированных на работу с детьми, в частности – детских садов, которые в последние десятилетия активно получают обозначения собственными именами. В настоящей статье рассматривается ряд схожих названий детских садов в Екатеринбурге и Пекине и отмечается, что, несмотря на существенную культурную разницу, одни и те же идеи могут мотивировать
создание детского эргоурбонима и в русском и в китайском языке.
SUMMARY OF THE PM(T) ONLINE SURVEY RESULTS - MAY-JULY 2022
Creators: name: FEUGER, Océane
name: BOUCARD, Pierre
name: LIONS, Julie
name: DULIO, Valeria
Publisher: name: Zenodo
Year: 2023
Subjects: H2020 Promisces
PM(T) substances
vPvM

description: PROMISCES must provide innovative approaches to prevent and manage the occurrence of PM(T) substances with a focus on persistent and mobile compounds of industrial origin to support the Zero Pollution and Circular Economy Action Plans. In this approach, a Decision Support Framework (DSF) will be developed to help stakeholders in building zero pollution strategies for safe reuse of resources in the circular economy. A survey was conducted to ask our stakeholders for their views on Persistent, Mobile and Toxic substances and their needs. 80 participants from 17 countries and more than 15 sectors such as utilities, local authorities and solution providers answered our questionnaire. The feedback of this survey will help us to better pinpoint the critical environmental, technical and economic issues about relevant groups of substances of concern among industrial chemicals. The results of the questionnaire will be used to position and prioritise expectations and support the design of a DSF. If you are interested by the detailed results of the survey, you can contact us at promisces_sec@brgm.fr.
On the stability of spherically symmetric space-times in scalar-tensor gravity
Creators: name: Bronnikov, Kirill A.
name: Bolokhov, Sergei V.
name: Skvortsova, Milena V.
name: Badalov, Kodir
name: Ibadov, Rustam
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the linear stability of vacuum static, spherically symmetric solutions to the gravitational field equations of the Bergmann-Wagoner-Nordtvedt class of scalar-tensor theories (STT) of gravity, restricting ourselves to nonphantom theories, massless scalar fields and configurations with positive Schwarzschild mass. We consider only small radial (monopole) perturbations as the ones most likely to cause an instability. The problem reduces to the same Schroedinger-like master equation as is known for perturbations of Fisher's solution of general relativity (GR), but the corresponding boundary conditions that affect the final result of the study depend on the choice of the STT and a particular solution within it. The stability or instability conclusions are obtained for the Brans-Dicke, Barker and Schwinger STT as well as for GR nonminimally coupled to a scalar field with an arbitrary parameter $ξ$.
description: 16 pages, 4 figures, each of 2 parts. Minor corrections, matching to the journal version
Possible sorting mechanism for microparticles in an evanescent field
Creators: name: Almaas, Eivind
name: Brevik, Iver
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Mie scattering theory is used to calculate radiation forces on a dielectric microsphere illuminated by evanescent waves, produced by laser light transmitted obliquely through a flat horizontal dielectric surface. The incident field is identified with the evanescent field, and both $p$ and $s$ polarizations are considered. Our investigation consists of three parts. First, after highlighting the basic formalism, we report results for the radiation force published in an earlier paper [J. Opt. Soc. Am. B {\bf 12}, 2429 (1995)], correcting a few trivial calculational errors. Second - the main objective of our paper - is to show how the vertical (lifting) force on microspheres, typically via a proper adjustment of the laser frequency, can be used to separate spheres differing by a slight amount in their refractive index. This is caused by an oscillatory behavior in the force with respect to the nondimensional wave number $α$ in the surrounding medium. Fine-tuning the wave number $α$, relative to the given refractive indices in the system, may lead to particle expulsion. The sorting mechanism turns out to be feasible when $α$ is about 18-20 or larger, which actually is in the region of practical interest. Finally, we investigate how variations in the angle of incidence $θ_1$ for the laser beam influences the resulting radiation force.
description: 18 pages, 7 figures
The Past of Things to Come
Creators: name: Hatziyannaki, Zoe
Publisher: name: Hannover : Leibniz Universität Hannover, Institut für Umweltplanung
Year: 2019
Subjects: subject: Economic crisis
subject: Resilience
subject: Urbanism
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: The paper discusses the installation work titled “The Past of Things to Come” which was exhibited in Athens in 2018. The main idea was based on an alleged occupation of a building that developed into a critical and sarcastic narrative of a dystopic future by applying fictitious and real events. The visitors were invited to observe archive material consisting of photos, texts and video footage from surveillance cameras concerning a room which appeared to have served as a shelter in 2112 and its exterior surroundings. The work examines the case of Exarcheia and Athens at large, through a dystopian futuristic prism, suggesting a redefinition of the relations between the private and the public, the outside and the inside, the local and the global, the past, the present and the future without leaving room for fixed or secure positions.
Zannichellia palustris
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.palustris (Miller) Crantz (Helleborine palustris Schrank) Cat. 340. Bis 1680m. l: Les Cerniers ob Choex, 1290m (Marietan); Dent de Valerette (idem); Le Rosel (Garns). - 2:Branson-Saillon (Garns); Getwing bei Leuk(Becherer).- 3:Bagnes (Miller); ebenda westlich von Bonatchesse,1680m (Marietan); Charrat-Saxon(F.); Riddes(J.); Pfyn (P.). Var. ericetorum A. et G. - 2: Saillon (Garns).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Generalization of Instanton-Induced Inflation and Dynamical Compactification
Creators: name: Ho, Jeongwon
name: Kim, Kyung Kiu
name: Koh, Seoktae
name: Yang, Hyun Seok
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It was shown that Yang-Mills instantons on an internal space can trigger the expansion of our four-dimensional universe as well as the dynamical compactification of the internal space. We generalize the instanton-induced inflation and dynamical compactification to general Einstein manifolds with positive curvature and also to the FLRW metric with spatial curvature. We explicitly construct Yang-Mills instantons on all Einstein manifolds under consideration and find that the homogeneous and isotropic universe is allowed only if the internal space is homogeneous. We then consider the FLRW metric with spatial curvature as a solution of the eight-dimensional Einstein-Yang-Mills theory. We find that open universe $(k=-1)$ admits bouncing solutions unlike the other cases $(k=0, +1)$.
description: v2: 29 pages, 5 figures. Published version in JHEP
Politische Bildung: Citizenship education in germany from marginalization to new challenges
Creators: name: Kenner, Steve
Publisher: name: Bielefeld : Sowi-Online
Year: 2020
Subjects: subject: Citizenship education
subject: Democracy
subject: Participation
subject: School development
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Purpose: The aim of this paper is to describe the state of current citizenship education in Germany with the focus on education in schools. The term ‘education’ in this paper refers to the concept of Bildung. It not only describes how to teach, but also the ability of self-determination of the individual. Methodology: The main focus of this article is to discuss the current state of citizenship education in Germany while taking into account various methodologies. Amongst these are findings of qualitative studies, which for example relate to the legal anchoring of citizenship education or to political action as a learning opportunity. In addition, a comprehensive analysis of the state‐of‐the‐art research on the basic principles of citizenship education is provided. Finally, current challenges are discussed, taking into consideration existing socio-political discourses, such as the question of neutrality. Findings: The article shows that the relevance of citizenship education is increasing, also in regard to current socio-political phenomena, such as the growth of right-wing populism and digitalization. At the same time, the results indicate that in various federal states the subject is marginalized and threatened by current debates about the alleged neutrality of citizenship education. © 2020, sowi-online e.V.. All rights reserved.
A call to arms: making the case for more reusable libraries
Creators: name: Lehtola, Susi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The traditional foundation of science lies on the cornerstones of theory and experiment. Theory is used to explain experiment, which in turn guides the development of theory. Since the advent of computers and the development of computational algorithms, computation has risen as the third cornerstone of science, joining theory and experiment on an equal footing. Computation has become an essential part of modern science, amending experiment by enabling accurate comparison of complicated theories to sophisticated experiments, as well as guiding by triage both the design and targets of experiments and the development of novel theories and computational methods. Like experiment, computation relies on continued investment in infrastructure: it requires both hardware (the physical computer on which the calculation is run) as well as software (the source code of the programs that performs the wanted simulations). In this Perspective, I discuss present-day challenges on the software side in computational chemistry, which arise from the fast-paced development of algorithms, programming models, as well as hardware. I argue that many of these challenges could be solved with reusable open source libraries, which are a public good, enhance the reproducibility of science, and accelerate the development and availability of state-of-the-art methods and improved software.
description: 15 pages, 1 figure. Fixed erroneous reference
The area law and real-space renormalization
Creators: name: Ferris, Andrew J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Real-space renormalization-group techniques for quantum systems can be divided into two basic categories - those capable of representing correlations following a simple boundary (or area) law, and those which are not. I discuss the scaling of the accuracy of gapped systems in the latter case and analyze the resultant spatial anisotropy. It is apparent that particular points in the system, that are somehow `central' in the renormalization, have local quantities that are much closer to the exact results in the thermodynamic limit than the system-wide average. Numerical results from the tree-tensor network and tensor renormalization-group approaches for the 2D transverse-field Ising model and 3D classical Ising model, respectively, clearly demonstrate this effect.
description: 6 pages, 6 figures
The architecture of organizations as missed opportunity in political research
Creators: name: Döhler, Marian
Publisher: name: Oxford [u.a.] : Wiley-Blackwell
Year: 2020
Subjects: subject: political science
subject: public administration
subject: organizations
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::340 | Recht

description: Few scholars in political science or public administration deny that organization matters. However, the rare application of an organizational perspective in research suggests otherwise. To revive the awareness of organizations as unit or level of analysis, attributed and generic properties are distinguished. Attributed properties, which dominate research, assign functions and patterns of behaviour to an organization. In contrast, generic properties refer to the constitutive elements of organizations that take effect before attributed properties. This article takes a closer look at four generic properties by examining their often-implicit use in current political science and public administration research. The aim is to demonstrate that the formal dimension, the goals, the expertise of personnel and organizational boundaries exert an independent influence on the output of political or public sector organizations. © 2020 The Author. Public Administration published by John Wiley & Sons Ltd.
Scattering in Three Dimensions from Rational Maps
Creators: name: Cachazo, Freddy
name: He, Song
name: Yuan, Ellis Ye
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The complete tree-level S-matrix of four dimensional ${\cal N}=4$ super Yang-Mills and ${\cal N} = 8$ supergravity has compact forms as integrals over the moduli space of certain rational maps. In this note we derive formulas for amplitudes in three dimensions by using the fact that when amplitudes are dressed with proper wave functions dimensional reduction becomes straightforward. This procedure leads to formulas in terms of rational maps for three dimensional maximally supersymmetric Yang-Mills and gravity theories. The integrand of the new formulas contains three basic structures: Parke-Taylor-like factors, Vandermonde determinants and resultants. Integrating out some of the Grassmann directions produces formulas for theories with less than maximal supersymmetry, which exposes yet a fourth kind of structure. Combining all four basic structures we start a search for consistent S-matrices in three dimensions. Very nicely, the most natural ones are those corresponding to ABJM and BLG theories. We also make a connection between the power of a resultant in the integrand, representations of the Poincaré group, infrared behavior and conformality of a theory. Extensions to other theories in three dimensions and to arbitrary dimensions are also discussed.
description: 21 pages
Possible wormholes in a Friedmann universe
Creators: name: Bronnikov, Kirill A.
name: Kashargin, Pavel E.
name: Sushkov, Sergey V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the properties of evolving wormholes able to exist in a closed Friedmann dust-filled universe and described by a particular branch of the well-known Lemaıtre-Tolman-Bondi solution to the Einstein equations and its generalization with a nonzero cosmological constant and an electromagnetic field. Most of the results are obtained with pure dust solutions. It is shown, in particular, that the lifetime of wormhole throats is much shorter than that of the whole wormhole region in the universe (which coincides with the lifetime of the universe as a whole), and that the density of matter near the boundary of the wormhole region is a few times smaller than the mean density of matter in the universe. Explicit examples of wormhole solutions and the corresponding numerical estimates are presented. The traversability of the wormhole under study is shown by a numerical analysis of radial null geodesics.
description: 21 pages, 10 figures
title: Künstlerleben in Rom. Bertel Thorvaldsen (1770-1844). Der dänische Bildhauer und seine deutschen Freunde. Eine Ausstellung im Germanischen Nationalmuseum. 1. Dezember 1991 bis 1. März 1992
Creators: name: Kluxen, Andrea M.
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Impact of Local Lattice Disorder on Spin and Orbital Orders in Ca$_{2-x}$Sr$_x$RuO$_4$
Creators: name: Sugimoto, Takuya
name: Ootsuki, Daiki
name: Mizokawa, Takashi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied relationship between local lattice disorder, Ru 4$d$ spin-orbit interaction, and global spin/orbital orders of Ca$_{2-x}$Sr$_x$RuO$_4$ in the Sr-rich and Ca-rich regions of its phase diagram by using unrestricted Hartree-Fock calculation on a $8\times8$ RuO$_4$ lattice model. The calculations show that the local elongation of RuO$_6$ octahedron in an antiferromagnetic insulator Ca$_2$RuO$_4$ induces local orbital change with making the Mott gap narrower. On the other hand, local compression of RuO$_6$ octahedron in a paramagnetic metal Sr$_2$RuO$_4$ induces global antiferromagnetic or ferromagnetic states. This result is consistent with a recent systematic $μ$SR study by Carlo {\it et al.} which has revealed the static antiferromagnetic order at low temperature in the Sr-rich region.
description: 14 pages, 3 figures
title: Рынок ценных бумаг
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: Практикум посвящен основным прикладным аспектам оценки и прогнозирования курсов и доходности ценных бумаг на фондовом рынке для принятия инвестиционных решений. Приведены задания для выполнения лабораторных работ и самостоятельного изучения дисциплины. Практикум предназначен для студентов, обучающихся по специальности среднего профессионального образования 38.02.07 «Банковское дело», изучающих дисциплину «Рынок ценных бумаг».
BASS-XL: X-ray variability properties of unobscured Active Galactic Nuclei
Creators: name: Tortosa, Alessia
name: Ricci, Claudio
name: Arévalo, Patricia
name: Koss, Michael J.
name: Bauer, Franz E.
name: Trakhtenbrot, Benny
name: Mushotzky, Richard
name: Temple, Matthew J.
name: Ricci, Federica
name: Lilayu, Alejandra Rojas
name: Kawamuro, Taiki
name: Caglar, Turgay
name: Liu, Tingting
name: Harrison, Fiona
name: Oh, Kyuseok
name: Powell, Meredith Clark
name: Stern, Daniel
name: Urry, Claudia Megan
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the X-ray variability properties of Seyfert1 Galaxies belonging to the BAT AGN Spectroscopic Survey (BASS). The sample includes 151 unobscured (N$_{\rm H}<10^{22}$ cm$^{-2}$) AGNs observed with XMM-Newton for a total exposure time of ~27 Ms, representing the deepest variability study done so far with high signal-to-noise XMM-Newton observations, almost doubling the number of observations analysed in previous works. We constrain the relation between the normalised excess variance and the 2-10 keV AGN luminosities, black hole masses and Eddington ratios. We find a highly significant correlation between $σ^{2}_{NXS}$ and $M_{\rm BH}$, with a scatter of ~0.85 dex. For sources with high $L_{2-10}$ this correlation has a lower normalization, confirming that more luminous (higher mass) AGNs show less variability. We explored the $σ^{2}_{NXS}$ vs $M_{\rm BH}$ relation for the sub-sample of sources with $M_{\rm BH}$ estimated via the "reverberation mapping" technique, finding a tighter anti-correlation, with a scatter of ~ 0.65 dex. We examine how the $σ^{2}_{NXS}$ changes with energy by studying the relation between the variability in the hard (3-10 keV) and the soft (0.2-1 keV)/medium (1-3 keV) energy bands, finding that the spectral components dominating the hard energy band are more variable than the spectral components dominating in softer energy bands, on timescales shorter than 10 ks.
description: Monthly Notices of the Royal Astronomical Society, Volume 526, Issue 2, pp.1687-1698
Detecting Breakage Fusion Bridge cycles in tumor genomes -- an algorithmic approach
Creators: name: Zakov, Shay
name: Kinsella, Marcus
name: Bafna, Vineet
Publisher: name: arXiv
Year: 2013
Subjects: subject: Genomics (q-bio.GN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Breakage-Fusion-Bridge (BFB) is a mechanism of genomic instability characterized by the joining and subsequent tearing apart of sister chromatids. When this process is repeated during multiple rounds of cell division, it leads to patterns of copy number increases of chromosomal segments as well as fold-back inversions where duplicated segments are arranged head-to-head. These structural variations can then drive tumorigenesis. BFB can be observed in progress using cytogenetic techniques, but generally BFB must be inferred from data like microarrays or sequencing collected after BFB has ceased. Making correct inferences from this data is not straightforward, particularly given the complexity of some cancer genomes and BFB's ability to generate a wide range of rearrangement patterns. Here we present algorithms to aid the interpretation of evidence for BFB. We first pose the BFB count vector problem: given a chromosome segmentation and segment copy numbers, decide whether BFB can yield a chromosome with the given segment counts. We present the first linear-time algorithm for the problem, improving a previous exponential-time algorithm. We then combine this algorithm with fold-back inversions to develop tests for BFB. We show that, contingent on assumptions about cancer genome evolution, count vectors and fold-back inversions are sufficient evidence for detecting BFB. We apply the presented techniques to paired-end sequencing data from pancreatic tumors and confirm a previous finding of BFB as well as identify a new chromosomal region likely rearranged by BFB cycles, demonstrating the practicality of our approach.
Novel ion drift tube for high-performance ion mobility spectrometers based on a composite material
Creators: name: Ahrens, André
name: Möhle, Janina
name: Hitzemann, Moritz
name: Zimmermann, Stefan
Publisher: name: Berlin : Springer
Year: 2020
Subjects: subject: Composite material
subject: Drift tube
subject: High-performance
subject: Ion mobility spectrometer
subject: Low-cost
subject: Miniaturized
subject: Composite materials
subject: Drift chambers
subject: Ions
subject: Manufacture
subject: Particle spectrometers
subject: Tubes (components)
subject: Alternating layers
subject: Analytical performance
subject: Detection limits
subject: Field application
subject: Insulator materials
subject: Manufacturing cost
subject: Manufacturing process
subject: Mechanically stable
subject: Ion mobility spectrometers
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Ion mobility spectrometers (IMS) are able to detect pptV-level concentrations of substances in gasses and in liquids within seconds. Due to the continuous increase in analytical performance and reduction of the instrument size, IMS are established nowadays in a variety of analytical field applications. In order to reduce the manufacturing effort and further enhance their widespread use, we have developed a simple manufacturing process for drift tubes based on a composite material. This composite material consists of alternating layers of metal sheets and insulator material, which are connected to each other in a mechanically stable and gastight manner. Furthermore, this approach allows the production of ion drift tubes in just a few steps from a single piece of material, thus reducing the manufacturing costs and efforts. Here, a drift tube ion mobility spectrometer based on such a composite material is presented. Although its outer dimensions are just 15 mm × 15 mm in cross section and 57 mm in length, it has high resolving power of Rp = 62 and detection limits in the pptV-range, demonstrated for ethanol and 1,2,3-trichloropropane. © 2020, The Author(s).
title: Национально-культурное наследие в урбанонимии Беларуси и Франции
Creators: name: Дорофеенко, Марина
Publisher: name: Новгородский печатный двор
Year: 2019

description: В данной статье исследуются отантропонимные урбанонимы Витебска (Беларусь) и Реймса (Франция), репрезентирующие национально-культурную и историческую информацию. Проанализированы названия, мотивированные фамилиями государственных деятелей и участников исторических событий, представителей литературы, искусства и науки. Определены номинативные особенности, свойственные белорусской и французской урбанонимным системам.
title: Своеобразие экклезионимов как особых онимных единиц (на материале названий культовых сооружений Беларуси)
Creators: name: Лукина, Ольга
Publisher: name: Новгородский печатный двор
Year: 2019

description: Наименования религиозных объектов, получившие терминологическое определение экклезионимы, представляют собой специфический вид онимов с поликомпонентной структурой, характеризующихся вариативностью оформления, наличием религиозной лексики в их составе, особой стилистической окрашенностью, своими особыми принципами номинации.
title: Функционирование имён собственных в лирике Г. Иванова
Creators: name: Верещагина, Анна
Publisher: name: Новгородский печатный двор
Year: 2019

description: В статье рассматриваются особенности функционирования имён собственных в сборнике произведений Г. Иванова «Лампада». Выявляются поэтонимы, составляющие структуру ономастического пространства сборника.
Epipactis atropurpurea Rafin.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.atropurpurea Rafin. (E. atrorubens [Hoffm.] Schuhes, E.rubiginosa [Crantz] Koch, H. atropurpurea Schinz et Thell.) Cat. 341. Bis etwa 2050 m. l: Ob Chalavornayres(Tanay),etwa1100m (Gsell);ob Vionnaz(J.);unter Charavex(Coquoz). - 2: Fully; Mazembroz-Saillon; Lousine, 1930m (alles: Garns); Foret de Tourbillon bei Ovronnaz (Marietan); Les Verines ob Chamoson (idem); Ayent (P.); Feschel-Erschmatt (Becherer); Birgisch (Marietan). - 3: Catogne (Melly, K. Freudenberg); Val Ferret, mehrfach (Melly); La Crevasse-Vence (F.); Liddes (Melly); Bonatchesse im Val de Bagnes (J.); ob Riddes (F.); ob Nendaz (J.); Val d'Heremence (J.); ob Zinal (M:arietan); Illgraben (idem); Törbel, bis 1800m (Stehler); Saas-Fee, unterhalb der Gletscheralp, etwa 2050m, zwei Exemplare (Hirschmann 1953); Visperterminen (Beauverd). - 3a: Gabi (Marietan); Gondoschlucht; Gondo, unteres Zwischbergental (alles: Becherer). - 4:Binntal, mehrfach (Binz, Becherer, Schmid); Reckingen (nachWilczek).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Fast Simulation of High-Depth QAOA Circuits
Creators: name: Lykov, Danylo
name: Shaydulin, Ruslan
name: Sun, Yue
name: Alexeev, Yuri
name: Pistoia, Marco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Until high-fidelity quantum computers with a large number of qubits become widely available, classical simulation remains a vital tool for algorithm design, tuning, and validation. We present a simulator for the Quantum Approximate Optimization Algorithm (QAOA). Our simulator is designed with the goal of reducing the computational cost of QAOA parameter optimization and supports both CPU and GPU execution. Our central observation is that the computational cost of both simulating the QAOA state and computing the QAOA objective to be optimized can be reduced by precomputing the diagonal Hamiltonian encoding the problem. We reduce the time for a typical QAOA parameter optimization by eleven times for $n = 26$ qubits compared to a state-of-the-art GPU quantum circuit simulator based on cuQuantum. Our simulator is available on GitHub: https://github.com/jpmorganchase/QOKit
description: Additional references added in v2
"Ein Leben mit Beschäftigungsrisiken" als Herausforderung an die sozialpädagogisch orientierte Berufsausbildung : eine empirische Studie
Creators: name: Bylinski, Ursula
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Vocational training support of disadvanteged
subject: unemployment
subject: coping strategies
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie

description: [no abstract]
title: Клиническая значимость молекулярно-генетического исследования генома вируса при остром вирусном гепатите В
Creators: name: Прийма, Екатерина
name: Новак, Ксения
name: Эсауленко, Елена
name: Иванова, Надежда
name: Алексеевна, Марина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Цель работы — охарактеризовать молекулярно-генетическую структуру вируса гепатита В, циркулирующего в Санкт-Петербурге, и описать клинико-лабораторные особенности острого вирусного гепатита В в зависимости от генотипа и инфицирования «диким», или мутантным штаммом вируса. Генотипирован вирус у 34 пациентов с острым вирусным гепатитом В. Проведен сравнительный анализ течения болезни у пациентов с D (n = 29) и A (n = 5) генотипом, а также в зависимости от наличия pre-core/core мутаций участка ВСP вируса (n = 11) или их отсутствия (n = 23). У анализируемых пациентов доминирует генотип D — 85,3% случаев и достоверно реже определяется генотип А — в 14,7% (р = 0,001).
Explaining Phenomenologically Observed Space-time Flatness Requires New Fundamental Scale Physics
Creators: name: Bennett, D.
name: Nielsen, H. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The phenomenologically observed flatness - or near flatness - of spacetime cannot be understood as emerging from continuum Planck (or sub-Planck) scales using known physics. Using dimensional arguments it is demonstrated that any immaginable action will lead to Christoffel symbols that are chaotic. We put forward new physics in the form of fundamental fields that spontaneously break translational invariance. Using these new fields as coordinates we define the metric in such a way that the Riemann tensor vanishes identically as a Bianchi identity. Hence the new fundamental fields define a flat space. General relativity with curvature is recovered as an effective theory at larger scales at which crystal defects in the form of disclinations come into play as the sources of curvature.
description: This article were already in 2011 published as Proceedings of the 14th Bled Conference on "What Comes Beyond the Standard Models" organized by Norma Manko Borstnik, Dragan Lukman, Maxim Khlopov, and H.B. Nielsen
Ballistic PbTe Nanowire Devices
Creators: name: Wang, Yuhao
name: Chen, Fangting
name: Song, Wenyu
name: Geng, Zuhan
name: Yu, Zehao
name: Yang, Lining
name: Gao, Yichun
name: Li, Ruidong
name: Yang, Shuai
name: Miao, Wentao
name: Xu, Wei
name: Wang, Zhaoyu
name: Xia, Zezhou
name: Song, Huading
name: Feng, Xiao
name: Zang, Yunyi
name: Li, Lin
name: Shang, Runan
name: Xue, Qi-Kun
name: He, Ke
name: Zhang, Hao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Disorder is the primary obstacle in current Majorana nanowire experiments. Reducing disorder or achieving ballistic transport is thus of paramount importance. In clean and ballistic nanowire devices, quantized conductance is expected with plateau quality serving as a benchmark for disorder assessment. Here, we introduce ballistic PbTe nanowire devices grown using the selective-area-growth (SAG) technique. Quantized conductance plateaus in units of $2e^2/h$ are observed at zero magnetic field. This observation represents an advancement in diminishing disorder within SAG nanowires, as none of the previously studied SAG nanowires (InSb or InAs) exhibit zero-field ballistic transport. Notably, the plateau values indicate that the ubiquitous valley degeneracy in PbTe is lifted in nanowire devices. This degeneracy lifting addresses an additional concern in the pursuit of Majorana realization. Moreover, these ballistic PbTe nanowires may enable the search for clean signatures of the spin-orbit helical gap in future devices.
A Guide to Imaging Obscure Floppy Disk Formats
Creators: name: Talboom, Leontien
name: Thorsted, Tyler
name: Kata, Elizabeth
name: Knowles, Chris
Publisher: name: Zenodo
Year: 2024

description: Memory institutions are grappling with the challenges posed by digital carriers in their collections. While solutions for more recent carriers like hard drives, optical discs, and flash storage are readily available, the landscape becomes trickier when dealing with older formats such as floppy disks. It is becoming increasingly difficult to source the hardware, such as 5.25”floppy drives. There are many boards that can read flux streams, including the KryoFlux, and the Award-winning Archivist’s Guide to KryoFlux can help to get started. But KryoFlux is somewhat limited in the disk formats it can interpret and might be too expensive for smaller institutions. We came together as practitioners because we encountered disk formats that required additional efforts to read and extract files. We explored hardware such as Greaseweazle and using FluxEngine software to read less common disk formats. Sharing the knowledge we have gained, this tutorial and workshop present an opportunity for participants to delve into these formats, examining them from both hardware and formatting perspectives.

The session will start with a tutorial designed to showcase various options and tools (FluxEngine, GreaseWeazle), demonstrating how to make aging equipment compatible with contemporary machines. At the end of the tutorial, participants should have the knowledge to build their own forensic workstation for 5.25”and 3.5”floppy disks.

Commencing with case studies, the workshop in the second half of the session will unravel the complexities of dealing with obscure formats and share valuable lessons learned. Participants will be equipped with practical tips and tricks for identification and handling, including utilizing Hex Editors and using tools for specific obscure disk formats (such as WANG). The aim is to empower participants with the skills and knowledge needed to navigate the challenges associated with older formats.
Frauenfunk und Jungmädchenstunde : ein Beitrag zur Programmgeschichte des Weimarer Rundfunks
Creators: name: Dinghaus, Angela
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Women's radio in Weimar Germany
subject: early female radio speakers
subject: letters from listeners
subject: Dewey Decimal Classification::900 | Geschichte und Geografie::940 | Geschichte Europas

description: [no abstract]
Short reasons for long vectors in HPC CPUs: a study based on RISC-V
Creators: name: Vizcaino, Pablo
name: Ieronymakis, Georgios
name: Dimou, Nikolaos
name: Papaefstathiou, Vassilis
name: Labarta, Jesus
name: Mantovani, Filippo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: For years, SIMD/vector units have enhanced the capabilities of modern CPUs in High-Performance Computing (HPC) and mobile technology. Typical commercially-available SIMD units process up to 8 double-precision elements with one instruction. The optimal vector width and its impact on CPU throughput due to memory latency and bandwidth remain challenging research areas. This study examines the behavior of four computational kernels on a RISC-V core connected to a customizable vector unit, capable of operating up to 256 double precision elements per instruction. The four codes have been purposefully selected to represent non-dense workloads: SpMV, BFS, PageRank, FFT. The experimental setup allows us to measure their performance while varying the vector length, the memory latency, and bandwidth. Our results not only show that larger vector lengths allow for better tolerance of limitations in the memory subsystem but also offer hope to code developers beyond dense linear algebra.
description: SC-W 2023: Workshops of The International Conference on High Performance Computing, Network, Storage, and Analysis Denver CO USA November 12 - 17, 2023
Schwingungsüberwachung von Primärkreiskomponenten in Kernkraftwerken
Creators: name: Fiedler, Jürgen
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Vibration monitoring
subject: core barrel vibration
subject: neutron noise
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Dimethyltitanocen als effektiver Katalysator für intermolekulare und intramolekulare Hydroaminierungen von Alkinen
Creators: name: Bytschkov, Igor
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Alkynes
subject: amination
subject: amines
subject: homogeneous catalysis
subject: titanium
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
The Hele-Shaw asymptotics for mechanical models of tumor growth
Creators: name: Perthame, Benoît
name: Quirós, Fernando
name: Vázquez, Juan Luis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 35B25, 76D27, 92C50

description: Models of tumor growth, now commonly used, present several levels of complexity, both in terms of the biomedical ingredients and the mathematical description. The simplest ones contain competition for space using purely fluid mechanical concepts. Another possible ingredient is the supply of nutrients through vasculature. The models can describe the tissue either at the level of cell densities, or at the scale of the solid tumor, in this latter case by means of a free boundary problem. Our first goal here is to formulate a free boundary model of Hele-Shaw type, a variant including growth terms, starting from the description at the cell level and passing to a certain limit. A detailed mathematical analysis of this purely mechanical model is performed. Indeed, we are able to prove strong convergence in passing to the limit, with various uniform gradient estimates; we also prove uniqueness for the asymptotic Hele-Shaw type problem. The main tools are nonlinear regularizing effects for certain porous medium type equations, regularization techniques à la Steklov, and a Hilbert duality method for uniqueness. At variance with the classical Hele-Shaw problem, here the geometric motion governed by the pressure is not sufficient to completely describe the dynamics. A complete description requires the equation on the cell number density. Using this theory as a basis, we go on to consider the more complex model including nutrients. We obtain the equation for the limit of the coupled system; the method relies on some BV bounds and space/time a priori estimates. Here, new technical difficulties appear, and they reduce the generality of the results in terms of the initial data. Finally, we prove uniqueness for the system, a main mathematical difficulty.
description: 34 pages, 3 figures