cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quadratic Word Equations with Length Constraints, Counter Systems, and Presburger Arithmetic with Divisibility
Creators: name: Lin, Anthony W.
name: Majumdar, Rupak
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: Word equations are a crucial element in the theoretical foundation of constraint solving over strings. A word equation relates two words over string variables and constants. Its solution amounts to a function mapping variables to constant strings that equate the left and right hand sides of the equation. While the problem of solving word equations is decidable, the decidability of the problem of solving a word equation with a length constraint (i.e., a constraint relating the lengths of words in the word equation) has remained a long-standing open problem. We focus on the subclass of quadratic word equations, i.e., in which each variable occurs at most twice. We first show that the length abstractions of solutions to quadratic word equations are in general not Presburger-definable. We then describe a class of counter systems with Presburger transition relations which capture the length abstraction of a quadratic word equation with regular constraints. We provide an encoding of the effect of a simple loop of the counter systems in the existential theory of Presburger Arithmetic with divisibility (PAD). Since PAD is decidable (NP-hard and is in NEXP), we obtain a decision procedure for quadratic words equations with length constraints for which the associated counter system is flat (i.e., all nodes belong to at most one cycle). In particular, we show a decidability result (in fact, also an NP algorithm with a PAD oracle) for a recently proposed NP-complete fragment of word equations called regular-oriented word equations, when augmented with length constraints. We extend this decidability result (in fact, with a complexity upper bound of PSPACE with a PAD oracle) in the presence of regular constraints.
description: arXiv admin note: substantial text overlap with arXiv:1805.06701
PRIMUS: An observationally motivated model to connect the evolution of the AGN and galaxy populations out to z~1
Creators: name: Aird, James
name: Coil, Alison L.
name: Moustakas, John
name: Diamond-Stanic, Aleksandar M.
name: Blanton, Michael R.
name: Cool, Richard J.
name: Eisenstein, Daniel J.
name: Wong, Kenneth C.
name: Zhu, Guangtun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an observationally motivated model to connect the AGN and galaxy populations at 0.2
description: 11 pages, 5 figures, emulateapj format, updated to match version accepted for publication in ApJ
On the connectivity of the disjointness graph of segments of point sets in general position in the plane
Creators: name: Leaños, J.
name: Ndjatchi, Christophe
name: Ríos-Castro, L. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C40

description: Let $P$ be a set of $n\geq 3$ points in general position in the plane. The edge disjointness graph $D(P)$ of $P$ is the graph whose vertices are all the closed straight line segments with endpoints in $P$, two of which are adjacent in $D(P)$ if and only if they are disjoint. We show that the connectivity of $D(P)$ is at least $\binom{\lfloor\frac{n-2}{2}\rfloor}{2}+\binom{\lceil\frac{n-2}{2}\rceil}{2}$, and that this bound is tight for each $n\geq 3$.
description: 16 pages, 5 figures
Eine Inschrift von Untersaal
Creators: name: Birley, Eric
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 31, Nr. 3/4 (1953)
Thick Spanier groups and the first shape group
Creators: name: Brazas, Jeremy
name: Fabel, Paul
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 14H30, 14F35, 55P55

description: We develop a new route through which to explore $\kerΨ_X$, the kernel of the $π_1$-shape group homomorphism determined by a general space $X$, and establish, for each locally path connected, paracompact Hausdorff space $X$, $\kerΨ_X$ is precisely the Spanier group of $X$.
description: 23 Pages, 1 figure, To appear in Rocky Mountain Journal of Mathematics
Additional file 1 of Clinician perceptions of the impact of ICU family visiting restrictions during the COVID-19 pandemic: an international investigation
Creators: name: McPeake, Joanne
name: Kentish-Barnes, Nancy
name: Banse, Emilie
name: Anderson, Lynne
name: Cuzco, Cecilia
name: Azoulay, Elie
name: Quasim, Tara
name: Castro, Pedro
name: Puxty, Kathryn
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. S1: COREQ checklist.
The Elephant Trunk Nebula and the Trumpler 37 cluster: Contribution of triggered star formation to the total population of an HII region
Creators: name: Getman, Konstantin V.
name: Feigelson, Eric D.
name: Sicilia-Aguilar, Aurora
name: Broos, Patrick S.
name: Kuhn, Michael A.
name: Garmire, Gordon P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Rich young stellar clusters produce HII regions whose expansion into the nearby molecular cloud is thought to trigger the formation of new stars. However, the importance of this mode of star formation is uncertain. This investigation seeks to quantify triggered star formation (TSF) in IC 1396A (a.k.a., the Elephant Trunk Nebula), a bright rimmed cloud (BRC) on the periphery of the nearby giant HII region IC 1396 produced by the Trumpler 37 cluster. X-ray selection of young stars from Chandra X-ray Observatory data is combined with existing optical and infrared surveys to give a more complete census of the TSF population. Over 250 young stars in and around IC 1396A are identified; this doubles the previously known population. A spatio-temporal gradient of stars from the IC 1396A cloud toward the primary ionizing star HD 206267 is found. We argue that the TSF mechanism in IC 1396A is the radiation-driven implosion process persisting over several million years. Analysis of the X-ray luminosity and initial mass functions indicates that >140 stars down to 0.1 Msun were formed by TSF. Considering other BRCs in the IC 1396 HII region, we estimate the TSF contribution for the entire HII region exceeds 14-25% today, and may be higher over the lifetime of the HII region. Such triggering on the periphery of HII regions may be a significant mode of star formation in the Galaxy.
description: Accepted for publication in MNRAS; 28 pages, 18 figures
Zugänge der Bibliothek
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 31, Nr. 3/4 (1953)
Verfasserverzeichnis der Bibliothekszugänge in Germania 31, 1953
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 31, Nr. 3/4 (1953)
Unlocking Monographs: The Way to Openness - An open access books day with DOAB-OAPEN, organised by OPERAS-GER
Creators: name: van Aalten, Lotte
name: Wilkinson, Laura J.
name: Bargheer, Margo
name: Piel, Pattrick
name: Töpfer, Marlen
Publisher: name: Zenodo
Year: 2023
Subjects: Open Access
monographs
Publishing
Libraries
Metrics
Scholarly Communication
PRISM

description: OPERAS-GER als Projekt zur Vernetzung der europäischen Forschungsinfrastruktur OPERAS in der deutschen Wissenschaftslandschaft stellte in einer Veranstaltung zusammen mit OAPEN, den europäischen Service DOAB (Directory of Open Access Books), der von der Community getrieben ist und den Zugang zu wissenschaftlichen, peer-reviewten Open-Access-Büchern und -Verlagen ermöglicht sowie diese indexiert, vor. Durch den Service soll den Nutzer:innen geholfen werden, vertrauensvolle Open-Access-Buchverlage zu finden. Während der Veranstaltung wurden neue Entwicklungen im Bereich von Open Access Büchern erkundet und die Möglichkeit geboten, weitere aktuelle und neue Funktionen von DOAB/OAPEN kennenzulernen. Programm + Presentations and Infomaterial: 10:00 – 10:30 Welcome tea & coffee
 10:30 – 10:45 Introduction of the day (Pattrick Piel and Marlen Töpfer, OPERAS-GER)
 10:45 - 11:15 The significance of open access books - developments and framework in Germany (Margo Bargheer, SUB Göttingen)
 11:15 – 12:15 Opening the box: a tour of DOAB-OAPEN services for open access books (Lotte van Aalten and Laura J. Wilkinson, DOAB/OAPEN)
 12:15 – 12:30 Reflections (Marlen Töpfer, OPERAS-GER)
 12:30 – 13:30 Lunch break
 13:30 – 15:00 What's cooking at DOAB-OAPEN? New & forthcoming services for open access books = PRISM + Books Analytics Dashboard (Lotte van Aalten and Laura J. Wilkinson, DOAB/OAPEN)
 15:00 – 15:15 Break
 15:15 – 16:00 Coffee roundtable: What needs to be done? (Pattrick Piel and Marlen Töpfer, OPERAS-GER) Die Veranstaltung fand am 07.03.2023 in der Max Weber Stiftung in Bonn statt und wurde auf Englisch durchgeführt.
Classical stability of black holes under massless Dirac perturbations
Creators: name: Lopez-Ortega, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a D-dimensional maximally symmetric spacetime we simplify the massless Dirac equation to two decoupled wavelike equations with effective potentials. Furthermore in D-dimensional Schwarzschild and Schwarzschild de Sitter black holes we note that for the massless Dirac field moving in the region exterior to the event horizon at least one of the effective potentials is not positive definite. Therefore the classical stability of these black holes against this field is not guaranteed. Here with the help of the S-deformation method, we state their classical stability against the massless Dirac field, extend these results to maximally symmetric black holes, and comment on the applicability of our results to establish the stability with respect to other classical fields.
description: 13 pages, 8 figures. Accepted for publication in the International Journal of Modern Physics D. Submitted for publication on May 31, 2012
title: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 1/2 (1954)
title: Bd. 32, Nr. 1/2 (1954)
titleType: AlternativeTitle
Creators: name: Germania : Anzeiger Der Römisch-Germanischen Kommission Des Deutschen Archäologischen Instituts
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: Titel
Widmung
Inhalt...V-VII
Ein Goldfund der Bronzezeit von Etzelsdorf-Buch bei Nürnberg (Goldblechbekrönung)...1-6
Ein Sammelfund von steinernen Bronzegußformen aus der späten Bronzezeit...7-10
Eine neue Grabform der jüngeren Bronzezeit aus Proitze, Kr. Lüchow...10-19
Die Burganlage über dem Kloster Sv. Erasmo am Ochridasee...19-21
Die Heuneburg beim Talhof. Vorläufige Ergebnisse der Grabungen 1950—1953...22-59
Das Oppidum Mont Lassois, Gemeinde Vix, Dep. Côte-d’Or...59-65
Mineralogische Untersuchung prähistorischer Keramik aus Hallstatt im Zusammenhang mit der Frage nach ihrer Herkunft...66-72
Spätlatènezeitliche Gräber von Koboltenhof bei Gramzow, Uckermark...72-76
Zum Stadtplan der Augusta Vindelicum. Zusammenfassender Vorbericht...76-85
Neolithische Siedlung in Lauenburg-Elbkamp, Kr. Herzogtum Lauenburg...85
Eine Nadelbüchse der Späthallstattzeit aus Hallstatt...85-86
Terra nigra...86-89
Die Inschrift des Eisenmessers von San Zeno und andere Messerinschriften...89-92
A. J. Brjusov, Umrisse zur Geschichte der Stämme des europäischen Teiles der UdSSR in der neolithischen Epoche...92-96
Waldemar Chmielewski, Zagadnienie grobowców kujawskich w świetlie ostatnich badań...96-97
Michael Grant, The Six Main Aes Coinages of Augustus...97-101
Giovanni Forni, II reclutamento delle legioni da Augusto a Diocleziano...101-102
K. A. Wilde, Die Bedeutung der Grabung Wollin...103-107
Zugänge der Bibliothek...107-120
Additional file 2 of Clinician perceptions of the impact of ICU family visiting restrictions during the COVID-19 pandemic: an international investigation
Creators: name: McPeake, Joanne
name: Kentish-Barnes, Nancy
name: Banse, Emilie
name: Anderson, Lynne
name: Cuzco, Cecilia
name: Azoulay, Elie
name: Quasim, Tara
name: Castro, Pedro
name: Puxty, Kathryn
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. S2: Focus group interview schedules.
Initial conditions for cold dark matter particles and General Relativity
Creators: name: Rampf, Cornelius
name: Rigopoulos, Gerasimos
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe the irrotational dust component of the universe in terms of a relativistic gradient expansion and transform the resulting synchronous metric to a Newtonian coordinate system. The two metrics are connected via a space-like displacement field and a time-like perturbation, providing a relativistic generalization of the transformation from Lagrangian to Eulerian coordinates. The relativistic part of the displacement field generates already at initial time a non-local density perturbation at second order. This is a purely relativistic effect since it originates from space-time mixing. We give two options, the passive and the active approach, on how to include the relativistic corrections for example in N-body simulations. In the passive approach we treat the corrections as a non-Gaussian modification of the initial Gaussian field (primordial non-Gaussianity could be incorporated as well). The induced non-Gaussianity depends on scale and the redshift at which initial conditions are set, with f_NL ~ few for small enough scales and redshifts. In the active approach we show how to use the relativistic trajectory to obtain the initial displacement and velocity of particles for N-body simulations without modifying the initial Gaussian field.
description: Title adjusted, added a table for clarity, matches published version
title: Методология использования нейросетевых технологий при распознавании триграмм
Creators: name: ., Ю.И. Бутенко – к.т.н., доцент, кафедра «Романо-германские языки», Московский государственный технический университет им. Н.Э. Баумана E-mail: iuliiabutenko2015@yandex.ru  А.А. Коноплева – магистр, Московский государственный технический университет им. Н.Э. Баумана E-mail: istommi@icloud.com
Publisher: name: Издательство Радиотехника
Year: 2020

description: Постановка проблемы. Автоматическое распознавания с использованием нейросетей письменной речи трактуется с позиций изменчивости шрифтов и очертаний букв: различной реализацией фонем, положением и характеристиками акустических приемников, изменениями параметров речи. Границы слова определяются в процессе распознавания с использованием нейронной сети посредством подбора оптимальной последовательности слов, наилучшим образом согласующейся с входным потоком речи по акустическим, лингвистическим и прагматическим критериям. Необходимо выявить пороги распознания неосмысленных последовательностей, которые предполагается считать наиболее удачным количеством неосмысленных последовательностей, состоящих из трёх звуков – триграммы.

Цель. Разработать методологию распознавания триграмм, соответствующих типичному русскому слогу, с использованием нейросетевых технологий, позволяющую при распознавании речи предположить вероятностное прогнозирование различных звуков.

Результаты. Представлены результаты исследования возможности использования триграмм для повышения вероятности распознавания отдельных слов в потоке речи. Приведены параметры, характеризующие системы автоматического распознавания речи. Выявлен момент опознания слова как точки распознавания, начиная с которой эта последовательность сегментов ассоциируется с определенным словом. Установлено, что использование триграмм во время декодирования повышает вероятность качества распознавания речи, так как при делении на триграммы в составе слова большей длины выделяется в слог, оно является более произносимым и легко распознается. Приведены субъективные оценки частот русских триграмм. Отмечено, что легко произносимые триграммы распознаются с более высокой долей вероятности, а использование триграмм повышает качество распознавания речи.

Практическая значимость. С использованием нейросетевых технологий получены пороги распознания неосмысленных последовательностей, состоящих из трёх звуков – триграммы. Основываясь на исследовании трудности произношения русских триграмм с последующей оцифровкой показано, что легко произносимые триграммы распознаются с более высокой долей вероятности. Декодирование повышает вероятность качества распознавания речи, так как при делении на триграммы в составе слова большей длины оно выделяется в слог, является более произносимым и легко оцифровывается.
Widmung
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 1/2 (1954)
Down-step statistics in generalized Dyck paths
Creators: name: Asinowski, Andrei
name: Hackl, Benjamin
name: Selkirk, Sarah J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05A15 (Primary) 05A19, 05A05 (Secondary)

description: The number of down-steps between pairs of up-steps in $k_t$-Dyck paths, a generalization of Dyck paths consisting of steps $\{(1, k), (1, -1)\}$ such that the path stays (weakly) above the line $y=-t$, is studied. Results are proved bijectively and by means of generating functions, and lead to several interesting identities as well as links to other combinatorial structures. In particular, there is a connection between $k_t$-Dyck paths and perforation patterns for punctured convolutional codes (binary matrices) used in coding theory. Surprisingly, upon restriction to usual Dyck paths this yields a new combinatorial interpretation of Catalan numbers.
Spätlatènezeitliche Gräber von Koboltenhof bei Gramzow, Uckermark
Creators: name: Raddatz, Klaus
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 1/2 (1954)
Additional file 3 of Clinician perceptions of the impact of ICU family visiting restrictions during the COVID-19 pandemic: an international investigation
Creators: name: McPeake, Joanne
name: Kentish-Barnes, Nancy
name: Banse, Emilie
name: Anderson, Lynne
name: Cuzco, Cecilia
name: Azoulay, Elie
name: Quasim, Tara
name: Castro, Pedro
name: Puxty, Kathryn
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3. S3: Qualitative analysis coding development
Ein Grabfund der Hügelgräberbronzezeit von Tiengen, Ldkr. Waldshut
Creators: name: Kimmig, Wolfgang
name: Unser, Stefan
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 3 (1954)
Additional file 1 of Creating efficiencies in the extraction of data from randomized trials: a prospective evaluation of a machine learning and text mining tool
Creators: name: Gates, Allison
name: Gates, Michelle
name: Sim, Shannon
name: Elliott, Sarah A.
name: Pillay, Jennifer
name: Hartling, Lisa
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1.
title: Методика определения высоты полета БЛА для коррекции бесплатформенной инерциальной навигационной системы с использованием интеллектуальной системы геопространственной информации
Creators: name: ., В.М. Гончаров – адъюнкт, Военная академия РВСН им. Петра Великого (Москва) E-mail: vladimir-goncharov.1986@mail.ru В.Ю. Лупанчук – к.т.н., преподаватель, Военная академия РВСН им. Петра Великого (Москва) E-mail: raketofflu@mail.ru
Publisher: name: Издательство Радиотехника
Year: 2020

description: Постановка проблемы. Автономное позиционирование беспилотного летательного аппарата (БЛА) с ограниченными массогабаритными показателями в пространстве требует проведения коррекции бесплатформенной инерциальной навигационной системы (БИНС). Коррекционные поправки определяются методом визуальной навигации по особым точкам подстилающей поверхности. Для эффективного применения метода визуальной навигации необходимо, чтобы БЛА осуществлял полет на достаточной высоте, позволяющей идентифицировать требуемое число особых точек.

Цель. Определить с помощью методики достаточную высоту полета летательного аппарата (ЛА) для коррекции бесплатформенной инерциальной навигационной системы в условиях отсутствия спутниковых сигналов с применением интеллектуальной системы геопространственной информации (ИСГИ).

Результаты. Представлена методика, позволяющая рассчитать достаточную высоту полета БЛА над областью коррекции путем применения алгоритмов: формирования областей коррекции ИСГИ, расчета траектории БЛА к точке старта, расчета высоты полета БЛА, коррекции БИНС. Значимость исследований обусловлена формированием коэффициентов, характеризующих разрежённость дескрипторов подстилающей поверхности и долю эталонного изображения в текущем изображении, позволяющих определить коррекционные поправки навигационной системы БЛА.

Практическая значимость. Применение методики определения достаточной высоты полета позволяет автономно позиционировать БЛА в пространстве с сохранением приемлемой точности определения координат местоположения, учитывать инструментальные погрешности БИНС и характеристики оптико-электронной системы для сокращения ресурсоемких вычислений при постоянном мониторинге подстилающей поверхности и идентификации особых точек.
The quantum Rabi model for two qubits
Creators: name: Chilingaryan, S. A.
name: Rodríguez-Lara, B. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 28D20, 46C05, 81Q15

description: We study the two-qubit Rabi model in the most general case where the qubits are different from each other. The spectrum of the system in the ultrastrong-coupling regime is shown to converge to two forced oscillator chains by perturbation theory. An even and odd decomposition of the Hilbert space allows us to calculate the spectra in any given parameter regime; the cases studied confirm our perturbation theory prediction in the ultrastrong-coupling regime and point to crossings in the spectra within each parity subspace in the moderate-coupling regime. The normal modes of the system are calculated by two different methods, the first a linear algebra approach via the parity bases that delivers a four-term recurrence relation for the amplitudes of the proper states and, the second, via Bargmann representation for the field that delivers five-term recurrence relations. Finally, we show some examples of the time evolution of the mean photon number, population inversion, von Neuman entropy and Wootters concurrence under the two-qubit quantum Rabi Hamiltonian by taking advantage of the parity decomposition.
description: 14 pages, 3 figures
Diffeomorphism cocycles over partially hyperbolic systems
Creators: name: Sadovskaya, Victoria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D30, 37C15

description: We consider Hölder continuous cocycles over an accessible partially hyperbolic system with values in the group of diffeomorphisms of a compact manifold $M$. We obtain several results for this setting. If a cocycle is bounded in $C^{1+γ}$, we show that it has a continuous invariant family of $γ$-Hölder Riemannian metrics on $M$. We establish continuity of a measurable conjugacy between two cocycles assuming bunching or existence of holonomies for both and pre-compactness in $C^0$ for one of them. We give conditions for existence of a continuous conjugacy between two cocycles in terms of their cycle weights. We also study the relation between the conjugacy and holonomies of the cocycles. Our results give arbitrarily small loss of regularity of the conjugacy along the fiber compared to that of the holonomies and of the cocycle.
description: 24 pages
Universal Landau Pole
Creators: name: Andrianov, A. A.
name: Espriu, D.
name: Kurkov, M. A.
name: Lizzi, F.
Publisher: name: arXiv
Year: 2013
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: Our understanding of quantum gravity suggests that at the Planck scale the usual geometry loses its meaning. If so, the quest for grand unification in a large non-abelian group naturally endowed with the property of asymptotic freedom may also lose its motivation. Instead we propose an unification of all fundamental interactions at the Planck scale in the form of a Universal Landau Pole (ULP), at which all gauge couplings diverge. The Higgs quartic coupling also diverges while the Yukawa couplings vanish. The unification is achieved with the addition of fermions with vector gauge couplings coming in multiplets and with hypercharges identical to those of the the Standard Model. The presence of these particles also prevents the Higgs quartic coupling from becoming negative, thus avoiding the instability (or metastability) of the SM vacuum.
description: 10 pages, 3 figure. Minor changes. Final version to appear on Physical Review Letters
Estimation Error Consisting of Motor Imagery and Motor Execution in Patients with Stroke
Creators: name: Sakai, Katsuya
name: Hosoi, Yuichiro
name: Harada, Yusuke
name: Ikeda, Yumi
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Previous studies demonstrate that the difference between motor imagery and actual tasks (estimation error) is related to cognitive and physical functions and that a large estimation error (LE) is related to motor imagery ability, including cognitive and physical functions in healthy subjects. The purpose of this study investigated whether estimation error is related to physical and cognitive function in patients with stroke. The study included 60 patients with stroke. The Timed Up and Go Test (TUGT) was employed to assess estimation error. First, the imagined TUGT (iTUGT) was performed; thereafter, the actual TUGT was performed. The estimation error was calculated by subtracting TUGT from iTUGT, with conversion to the absolute value. The patients were classified into the small estimation error (SE) and LE groups, with comparisons of various clinical scores (Mini-Mental State Examination, Berg Balance Scale, 10-m walking speed, Brunnstrom Recovery Stage, and Functional Independence Measure). As a result, the estimation error was significantly larger in the LE group than in the SE group. Cognitive function and balance ability were significantly lower in the LE group than in the SE group. In conclusion, the estimation error was related to physical and cognitive functions in patients with stroke.
Transport anomalies due to anisotropic interband scattering
Creators: name: Breitkreiz, Maxim
name: Brydon, P. M. R.
name: Timm, Carsten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Unexpected transport behavior can arise due to anisotropic single-particle scattering in multiband systems. Specifically, we show within a semiclassical Boltzmann approach beyond the relaxation-time approximation that anisotropic scattering between electronlike and holelike Fermi surfaces generically leads to negative transport times, which in turn cause negative magnetoresistance, an extremum in the Hall coefficient, and a reduction of the resistivity. The anisotropy required for this to occur decreases with increasing mismatch between the Fermi-surface radii.
description: 6 pages, 6 figures, published version
Adinkra (In)Equivalence From Coxeter Group Representations: A Case Study
Creators: name: Chappell, Isaac
name: Gates, S. James
name: Hubsch, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using a Mathematica code, we present a straightforward numerical analysis of the 384-dimensional solution space of signed permutation 4x4 matrices, which in sets of four provide representations of the GR(4,4) algebra, closely related to the N=1 (simple) supersymmetry algebra in 4-dimensional spacetime. Following after ideas discussed in previous papers about automorphisms and classification of adinkras and corresponding supermultiplets, we make a new and alternative proposal to use equivalence classes of the (unsigned) permutation group S4 to define distinct representations of higher dimensional spin bundles within the context of adinkras. For this purpose, the definition of a dual operator akin to the well-known Hodge star is found to partition the space of these GR(4,4) representations into three suggestive classes.
description: 23 pages, 6 figures (v.2: numerical data corrections in appendix C)
Topological Classification of Crystalline Insulators with Point Group Symmetry
Creators: name: Jadaun, Priyamvada
name: Xiao, Di
name: Niu, Qian
name: Banerjee, Sanjay K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that in crystalline insulators point group symmetry alone gives rise to a topological classification based on the quantization of electric polarization. Using C3 rotational symmetry as an example, we first prove that the polarization is quantized and can only take three inequivalent values. Therefore, a Z3 topological classification exists. A concrete tight-binding model is derived to demonstrate the Z3 topological phase transition. Using first-principles calculations, we identify graphene on BN substrate as a possible candidate to realize the Z3 topological states. To complete our analysis we extend the classification of band structures to all 17 two-dimensional space groups. This work will contribute to a complete theory of symmetry conserved topological phases and also elucidate topological properties of graphene like systems.
title: Архитектура искусственной нейронной сети повышенной обобщающей способности на базе РБФ
Creators: name: ., М.А. Абросимов – аспирант, кафедра «Информационная безопасность автоматизированных систем», Саратовский государственный технический университет имени Ю.А. Гагарина E-mail: destinywatcher@gmail.com А.В. Бровко – д.ф-м.н., доцент, профессор, кафедра «Информационная безопасность автоматизированных систем», Саратовский государственный технический университет имени Ю.А. Гагарина E-mail: brovkoav@gmail.com
Publisher: name: Издательство Радиотехника
Year: 2020

description: Постановка проблемы. Рассматривается проблема колебаний уровня ошибки в сети радиально-базисных функций (РБФ) после обучения при изменении размера обучающей выборки. Данные отклонения усложняют процесс построения обучающей выборки и, соответственно, применения РБФ-сетей для решения практических задач.

Цель. Разработать архитектуру искусственной нейронной сети (ИНС), имеющей схожее с сетью РБФ назначение, и обладающей большей устойчивостью к сокращению объема обучающей выборки, а также алгоритм обучения новой архитектуры ИНС.

Результаты. Описаны и реализованы архитектура ИНС, основанная на сети РБФ, и соответствующий ей алгоритм обучения. В отличие от сети РБФ предлагаемая архитектура многослойна и имеет потенциал глубокого обучения. Представленные результаты численного тестирования показывают значительное снижение колебаний ошибки в процессе обучения сети с предложенной архитектурой при сокращении размеров обучающей выборки, что свидетельствует о повышении обобщающей способности предложенной архитектуры по сравнению с РБФ-сетью.

Практическая значимость. В работе в качестве задачи для приложения новой архитектуры ИНС рассматривается восстановление диэлектрических параметров образца, находящегося в системе волноводов, также описанная в [1,2]. Предлагаемая в данной работе архитектура ИНС в целом находит применение в задаче аппроксимации функций в условиях объема обучающей выборки, не подходящего для приложения классических сетей РБФ.
On the Lubensky-Nelson model of polymer translocation through nanopores
Creators: name: Reimann, Peter
name: Meyer, Andreas
name: Getfert, Sebastian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We revisit the one-dimensional stochastic model of Lubensky and Nelson [Biophys. J 77, 1824 (1999)] for the electrically driven translocation of polynucleotides through alpha-hemolysin pores. We show that the model correctly describes two further important properties of the experimentally observed translocation time distributions, namely their spread (width) and their exponential decay. The resulting overall agreement between theoretical and experimental translocation time distributions is thus very good.
title: O cuidador informal da pessoa com dificuldades intelectuais e desenvolvimentais : perspetivando a intervenção do serviço social
Creators: name: Furtado Silva, Ana Margarida Frias
Publisher: name: Universidade Lusíada Editora
Year: 2012

description: Intervenção social. - ISSN 0874-1611. - N. 40 (2.º semestre 2012). - p. 109-124.
Eine Sigillata-Töpferei in Martres de Veyre (Frankreich)
Creators: name: Terrisse, Raymond
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 3 (1954)
Additional file 2 of Creating efficiencies in the extraction of data from randomized trials: a prospective evaluation of a machine learning and text mining tool
Creators: name: Gates, Allison
name: Gates, Michelle
name: Sim, Shannon
name: Elliott, Sarah A.
name: Pillay, Jennifer
name: Hartling, Lisa
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2.
Eine westfälische Siedlung des 8. Jahrhunderts bei Warendorf, Kr. Warendorf
Creators: name: Winkelmann, Wilhelm
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 3 (1954)
Decision problems for linear recurrences involving arbitrary real numbers
Creators: name: Neumann, Eike
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We study the decidability of the Skolem Problem, the Positivity Problem, and the Ultimate Positivity Problem for linear recurrences with real number initial values and real number coefficients in the bit-model of real computation. We show that for each problem there exists a correct partial algorithm which halts for all problem instances for which the answer is locally constant, thus establishing that all three problems are as close to decidable as one can expect them to be in this setting. We further show that the algorithms for the Positivity Problem and the Ultimate Positivity Problem halt on almost every instance with respect to the usual Lebesgue measure on Euclidean space. In comparison, the analogous problems for exact rational or real algebraic coefficients are known to be decidable only for linear recurrences of fairly low order.
Integral relations and the adiabatic expansion method for 1+2 reactions above the breakup threshold: Helium trimers with soft-core potentials
Creators: name: Garrido, E.
name: Romero-Redondo, C.
name: Kievsky, A.
name: Viviani, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The integral relations formalism introduced in \cite{bar09,rom11}, and designed to describe 1+$N$ reactions, is extended here to collision energies above the threshold for the target breakup. These two relations are completely general, and in this work they are used together with the adiabatic expansion method for the description of 1+2 reactions. The neutron-deuteron breakup, for which benchmark calculations are available, is taken as a test of the method. The s-wave collision between the $^4$He atom and $^4$He$_2$ dimer above the breakup threshold and the possibility of using soft-core two-body potentials plus a short-range three-body force will be investigated. Comparisons to previous calculations for the three-body recombination and collision dissociation rates will be shown.
description: To be published in Physical Review A
title: Ciudadanía, comunidad, municipio y redes sociales : la fuerza de lo imprevisto
Creators: name: RODRÍGUEZ ÁLVAREZ, MARÍA DOLORES
Publisher: name: Universidade Lusíada Editora
Year: 2012

description: Intervenção social. - ISSN 0874-1611. - N. 40 (2.º semestre 2012). - p. 125-142.
Additional file 3 of Creating efficiencies in the extraction of data from randomized trials: a prospective evaluation of a machine learning and text mining tool
Creators: name: Gates, Allison
name: Gates, Michelle
name: Sim, Shannon
name: Elliott, Sarah A.
name: Pillay, Jennifer
name: Hartling, Lisa
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 3.
Additional file 4 of Creating efficiencies in the extraction of data from randomized trials: a prospective evaluation of a machine learning and text mining tool
Creators: name: Gates, Allison
name: Gates, Michelle
name: Sim, Shannon
name: Elliott, Sarah A.
name: Pillay, Jennifer
name: Hartling, Lisa
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 4.
Ein völkerwanderungszeitlicher Goldschmuck aus der Herzegowina
Creators: name: Vinski, Zdenko
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 4 (1954)
Gamma Ray Cherenkov-Transition Radiation
Creators: name: Aginian, M. A.
name: Ispirian, K. A.
name: Ispiryan, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The production of gamma-ray Cherenkov-transition radiation (GCTR) by charged particles in the photon energy region 0.8 - 2 MeV is studied theoretically using the results of the recent discovery that in the above mentioned region the dielectric constant or the refraction index of some materials is greater than 1 due to Delbruck scattering on Coulomb field of nuclei. Using the results of the carried out numerical calculations, the possibility of observing GCTR and some of its applications are discussed.
Additional file 1 of Machine learning computational tools to assist the performance of systematic reviews: A mapping review
Creators: name: Cierco Jimenez, Ramon
name: Lee, Teresa
name: Rosillo, Nicolás
name: Cordova, Reynalda
name: Cree, Ian A
name: Gonzalez, Angel
name: Indave Ruiz, Blanca Iciar
Publisher: name: figshare
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: Information Systems

description: Additional file 1: Supplementary file1. Search strategies used in the mapping review. The file contains three tables with the developed search strategies in the electronic databases MEDLINE, EMBASE and Web of Science.
Cloaking and Magnifying Using Radial Anisotropy
Creators: name: Kettunen, Henrik
name: Wallén, Henrik
name: Sihvola, Ari
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This paper studies the electrostatic responses of a polarly radially anisotropic cylinder and a spherically radially anisotropic sphere. For both geometries, the permittivity components differ from each other in the radial and tangential directions. We show that choosing the ratio between these components in a certain way, these rather simple structures can be used in cloaking dielectric inclusions with arbitrary permittivity and shape in the quasi-static limit. For an ideal cloak, the contrast between the permittivity components has to tend to infinity. However, only positive permittivity values are required and a notable cloaking effect can already be observed with relatively moderate permittivity contrasts. Furthermore, we show that the polarly anisotropic cylindrical shell has a complementary capability of magnifying the response of an inner cylinder.
description: 10 pages, added analysis on material losses
„Australopithecinen“ und älteste Geröllindustrien
Creators: name: Narr, Karl J.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 4 (1954)
The escape of heavy atoms from the ionosphere of HD209458b. I. A photochemical-dynamical model of the thermosphere
Creators: name: Koskinen, T. T.
name: Harris, M. J.
name: Yelle, R. V.
name: Lavvas, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The detections of atomic hydrogen, heavy atoms and ions surrounding the extrasolar giant planet (EGP) HD209458b constrain the composition, temperature and density profiles in its upper atmosphere. Thus the observations provide guidance for models that have so far predicted a range of possible conditions. We present the first hydrodynamic escape model for the upper atmosphere that includes all of the detected species in order to explain their presence at high altitudes, and to further constrain the temperature and velocity profiles. This model calculates the stellar heating rates based on recent estimates of photoelectron heating efficiencies, and includes the photochemistry of heavy atoms and ions in addition to hydrogen and helium. The composition at the lower boundary of the escape model is constrained by a full photochemical model of the lower atmosphere. We confirm that molecules dissociate near the 1 microbar level, and find that complex molecular chemistry does not need to be included above this level. We also confirm that diffusive separation of the detected species does not occur because the heavy atoms and ions collide frequently with the rapidly escaping H and H+. This means that the abundance of the heavy atoms and ions in the thermosphere simply depends on the elemental abundances and ionization rates. We show that, as expected, H and O remain mostly neutral up to at least 3 Rp, whereas both C and Si are mostly ionized at significantly lower altitudes. We also explore the temperature and velocity profiles, and find that the outflow speed and the temperature gradients depend strongly on the assumed heating efficiencies...
description: Accepted for publication in Icarus, submitted version
On the Expressive Power of Higher-Order Pushdown Systems
Creators: name: Parys, Paweł
Publisher: name: arXiv
Year: 2020
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: F.1.1

description: We show that deterministic collapsible pushdown automata of second order can recognize a language that is not recognizable by any deterministic higher-order pushdown automaton (without collapse) of any order. This implies that there exists a tree generated by a second order collapsible pushdown system (equivalently, by a recursion scheme of second order) that is not generated by any deterministic higher-order pushdown system (without collapse) of any order (equivalently, by any safe recursion scheme of any order). As a side effect, we present a pumping lemma for deterministic higher-order pushdown automata, which potentially can be useful for other applications.
W. Glasbergen, Barrow Excavations in the Eight Beatitudes
Creators: name: Modderman, Pieter J.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2018

description: Rezension zu: W. Glasbergen, Barrow Excavations in the Eight Beatitudes. The Bronze Age Cemetery between Toterfout and Halve Mijl, North Brabant. I.The Excavations. II. The Implications. Palaeohistoria Band 2, Groningen 1954. 134 + 204 S., 76 Abb., 22 Taf.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 32, Nr. 4 (1954)
MESA inlists for "The surviving remnants of red giants after a partial tidal disruption event", MSc thesis
Creators: name: Navarro, Nuria
Publisher: name: Zenodo
Year: 2023
Subjects: astrophysics
stellar evolution
Modules for Experiments in Stellar Astrophysics
MESA

description: This file contains the MESA inlists used for the master thesis "The surviving remnants of red giants after a partial tidal disruption event".