cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chiral QCD sum rules for open charm mesons
Creators: name: Hilger, Thomas
name: Kampfer, Burkhard
name: Leupold, Stefan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: QCD sum rules for chiral partners in the open-charm meson sector are presented at nonzero baryon net density or temperature. We focus on the differences between pseudo-scalar and scalar as well as vector and axial-vector D mesons and derive the corresponding Weinberg type sum rules. This allows for the identification of such QCD condensates which drive the non-degeneracy of chiral partners in lowest order of the strong coupling alpha_s and which therefore may serve as "order parameters" for chiral restoration (or elements thereof).
description: 24 pages, 4 figures
The first Infrared study of the close environment of a long Gamma-Ray Burst
Creators: name: Floc'h, E. Le
name: Charmandaris, V.
name: Gordon, K.
name: Forrest, W. J.
name: Brandl, B.
name: Schaerer, D.
name: Dessauges-Zavadsky, M.
name: Armus, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a characterization of the close environment of GRB980425 based on 5-160mic spectro-imaging obtained with Spitzer. The Gamma-Ray Burst GRB980425 occurred in a nearby (z=0.0085) SBc-type dwarf galaxy, at a projected distance of 900pc from an HII region with strong signatures of Wolf-Rayet (WR) stars. While this "WR region" produces less than 5% of the B-band emission of the host, we find that it is responsible for 45+/-10% of the total infrared luminosity, with a maximum contribution reaching 75% at 25-30mic. This atypical property is rarely observed among morphologically-relaxed dwarves, suggesting a strong causal link with the GRB event. The luminosity of the WR region (L_8-1000mic=4.6x10^8 Lsol), the peak of its spectral energy distribution at
description: ApJ in press, 14 pages, 2 tables, 7 figures
Energy distribution and energy fluctuation in Tsallis statistics
Creators: name: Guo, Ran
name: Du, Jiulin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The energy distribution and the energy fluctuation in the Tsallis canonical ensemble are studied with the OLM formalism but following a new way. The resulting formula for the energy fluctuation is not the same as that in previous work [Liu L.Y. and Du J.L., Physica A 387(2008)5417]. In discussing the application of an ideal gas, we find that the energy fluctuation can not be negligible in the thermodynamic limit, showing the ensemble nonequivalence for this case in Tsallis statistics. We investigate the energy fluctuation with a Tsallis generalized canonical distribution studied by Plastino and Plastino [Phys. Lett. A 193(1994)140] for describing a system in contact with a finite heath bath. For this situation, the two formulae for the energy fluctuation are shown to be equivalent, while the nonextensive parameter q plays a very important role.
description: 13 pages, 11 references
Auswertung veröffentlichter Modellmessungen zur Bestimmung der Luftkräfte an Überwasserschiffen bei Schräganströmung
Creators: name: Wagner, Bernd
Publisher: name: TUHH Universitätsbibliothek
Year: 1963
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Auswertung veröffentlichter Modellmessungen zur Bestimmung der Luftkräfte an Überwasserschiffen bei Schräganströmung
Restrictions and extensions of semibounded operators
Creators: name: Jorgensen, Palle
name: Pedersen, Steen
name: Tian, Feng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 47L60, 47A25, 47B25, 35F15, 42C10, 34L25, 35Q40, 81Q35, 81U35, 46L45, 46F12

description: We study restriction and extension theory for semibounded Hermitian operators in the Hardy space of analytic functions on the disk D. Starting with the operator zd/dz, we show that, for every choice of a closed subset F in T=bd(D) of measure zero, there is a densely defined Hermitian restriction of zd/dz corresponding to boundary functions vanishing on F. For every such restriction operator, we classify all its selfadjoint extension, and for each we present a complete spectral picture. We prove that different sets F with the same cardinality can lead to quite different boundary-value problems, inequivalent selfadjoint extension operators, and quite different spectral configurations. As a tool in our analysis, we prove that the von Neumann deficiency spaces, for a fixed set F, have a natural presentation as reproducing kernel Hilbert spaces, with a Hurwitz zeta-function, restricted to FxF, as reproducing kernel.
description: 63 pages, 11 figures
title: Динамика качества жизни у пациентов в раннем восстановительном периоде после инсульта
Creators: name: Марцияш, Алексей
name: Колмыкова, Елена
name: Ласточкина, Лилия
name: Мозес, Вадим
name: Мозес, Кира
name: Зуева, Светлана
name: Елгина, Светлана
name: Рудаева, Елена
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Предпринята попытка оценить динамику изменения качества жизни у пациентов в раннем восстановительном периоде после острого нарушения мозгового кровообращения. Сплошным методом было отобрано 142 пациента после ишемического инсульта, которые поступили из стационара на второй этап медицинской реабилитации. Все пациенты получали стандартизованный комплекс реабилитации, включающий в себя физические упражнения и физические методы. На 21 день и на 6 месяц от начала реабилитации оценивалась общемозговая симптоматика и качество жизни при помощи опросника NНР, Спилбергера—Ханина и медико-социологической анкеты. У большинства пациентов на 21 день от начала реабилитации наблюдалась положительная динамика снижения общемозговой симптоматики, которая сохранялась на протяжении всего периода наблюдения.
Frugal innovation in Germany : a qualitative analysis of potential socio-economic impacts
Creators: name: Tiwari, Rajnish
name: Fischer, Luise
name: Kalogerakis, Katharina
Publisher: name: TUHH Universitätsbibliothek
Year: 2017
Subjects: subject: fugal innovation
subject: Germany
subject: affordability
subject: moderation
subject: emerging markets
subject: voluntary simplicity
subject: affordable excellence
subject: frugality 3.0
classificationCode: 330
subject: Wirtschaft

description: Frugal innovation is gaining traction globally, not only in emerging economies, but also in the industrialized world. The root causes of frugality’s acceptance as a societal value may however differ according to the social context, especially between the developing and the developed world. In this paper we present the results of a trend analysis in Germany that has been conducted as a part of a BMBF-supported project aiming to investigate “Potentials, Challenges and Societal Relevance of Frugal Innovations in the Context of Global Innovation Competition”. The research was conducted in two steps. In a first step preliminary insights were generated by an extensive literature review and 3 focus groups with 30 experts discussing the relevance of frugal innovation for Germany. These insights were then verified in 20 semi-structured interviews with additional experts from cross-sections of the German society. The experts opined that frugal products and services (should) focus on the customers’ core needs and reduce unnecessary complexity while adhering to high quality standards. They predicted a trend towards frugal solutions in Germany due to a complex interplay of various factors. One notable factor was a growing appreciation of moderation and voluntary simplicity by parts of the German society leading to “frugal choices”. The second widespread consensus was that frugal innovations are necessary to secure long-term competitiveness of German companies in fast-growing, unsaturated markets in the emerging economies. Several challenges were pointed out concerning the actual implementation of frugal concepts in the product development process. An overwhelming reliance on high tech-driven and complexity-embracing innovation pathways by engineers in German firms was characterized as a powerful obstacle in implementing frugality.
title: Морфо-гемодинамические асимметрии у больных артериальной гипертензией и их возможная роль в патогенезе гипертонии
Creators: name: Гаевский, Юрий
name: Вебер, Виктор
name: Захарова, Валерия
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В работе оценена возможность использования ультразвукового исследования для изучения морфофункциональных особенностей позвоночных артерий у пациентов с гипертонической болезнью. С этой целью проведено ультразвуковое дуплексное сканирование позвоночных артерий у 279 пациентов с артериальной гипертензией (АГ) I и II стадий (149 пациентов с АГ I стадии и 130 — с АГ II стадии). В контрольную группу вошли 196 лиц с нормальными значениями артериального давления. Дуплексное исследование включало изучение показателей гемодинамики позвоночных артерий (ПА): пиковой систолической скорости кровотока, индекса периферического сопротивления (ИС); пульсационного индекса (ПИ), диаметра левой и правой ПА, асимметрии диаметра ПА, объемного кровотока. Реактивность ПА оценивалась путем реакции показателей гемодинамики на повороты головы. Выраженность фиброза мышечной муфты, окружающей ПА в сегментах С5–С6 шейного отдела позвоночника, оценивалась по 4 степеням (от 0 до 3).
A review of elliptical and disc galaxy structure, and modern scaling laws
Creators: name: Graham, Alister W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A century ago, in 1911 and 1913, Plummer and then Reynolds introduced their models to describe the radial distribution of stars in `nebulae'. This article reviews the progress since then, providing both an historical perspective and a contemporary review of the stellar structure of bulges, discs and elliptical galaxies. The quantification of galaxy nuclei, such as central mass deficits and excess nuclear light, plus the structure of dark matter halos and cD galaxy envelopes, are discussed. Issues pertaining to spiral galaxies including dust, bulge-to-disc ratios, bulgeless galaxies, bars and the identification of pseudobulges are also reviewed. An array of modern scaling relations involving sizes, luminosities, surface brightnesses and stellar concentrations are presented, many of which are shown to be curved. These 'redshift zero' relations not only quantify the behavior and nature of galaxies in the Universe today, but are the modern benchmark for evolutionary studies of galaxies, whether based on observations, N-body-simulations or semi-analytical modelling. For example, it is shown that some of the recently discovered compact elliptical galaxies at 1.5 < z < 2.5 may be the bulges of modern disc galaxies.
description: Condensed version (due to Contract) of an invited review article to appear in "Planets, Stars and Stellar Systems"(www.springer.com/astronomy/book/978-90-481-8818-5). 500+ references incl. many somewhat forgotten, pioneer papers. Original submission to Springer: 07-June-2011
title: Клинико-лабораторные исследования при механической желтухе неопухолевой этиологии
Creators: name: Кашаева, Марина
name: Прошин, Андрей
name: Дубовая, Татьяна
name: Прошина, Лидия
name: Гаврилова, Ксения
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Проведен анализ клинических данных 457 больных, находившихся на лечении по поводу механической желтухи неопухолевой этиологии. В зависимости от продолжительности желтухи все больные разделены на две группы: 1 — с длительностью холестаза до 10 дней; 2 — с желтухой до 3-6 недель. Всем больным выполняли общий анализ крови с определением количества тромбоцитов по Фонио, изучены показатели гомеостаза, гемостаза, эндогенной интоксикации, параметры реологических свойств крови. Функциональное состояние печени оценивали по результатам биохимических исследований крови. Выявлено, что при механической желтухе на фоне нарушений липидного обмена и эндогенной интоксикации наблюдается повышение вязкости, агрегационной способности эритроцитов, снижение их деформируемости, свертывающего потенциала и повышение фибринолитической активности крови. Повышение фибринолитической активности крови свидетельствует о риске возникновения в послеоперационном периоде кровотечений, а снижение — тромботических осложнений.
Potentialtheoretische Druckverteilung am Rotationskörper
Creators: name: Pleß, Eckhart
Publisher: name: TUHH Universitätsbibliothek
Year: 1956
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Potentialtheoretische Druckverteilung am Rotationskörper
MPEC 2024-C55 : 2024 CT
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 CT

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Jamming Perspective on Wet Foams
Creators: name: Katgert, Gijs
name: Tighe, Brian P.
name: van Hecke, Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Amorphous materials as diverse as foams, emulsions, colloidal suspensions and granular media can {\em jam} into a rigid, disordered state where they withstand finite shear stresses before yielding. The jamming transition has been studied extensively, in particular in computer simulations of frictionless, soft, purely repulsive spheres. Foams and emulsions are the closest realizations of this model, and in foams, the (un)jamming point corresponds to the wet limit, where the bubbles become spherical and just form contacts. Here we sketch the relevance of the jamming perspective for the geometry and flow of foams --- and also discuss the impact that foams studies may have on theoretical studies on jamming. We first briefly review insights into the crucial role of disorder in these systems, culminating in the breakdown of the affine assumption that underlies the rich mechanics near jamming. Second, we discuss how crucial theoretical predictions, such as the square root scaling of contact number with packing fraction, and the nontrivial role of disorder and fluctuations for flow have been observed in experiments on 2D foams. Third, we discuss a scaling model for the rheology of disordered media that appears to capture the key features of the flow of foams, emulsions and soft colloidal suspensions. Finally, we discuss how best to confront predictions of this model with experimental data.
description: 7 Figs., 21 pages, Review article
Andreev current induced by ferromagnetic resonance
Creators: name: Richard, Caroline
name: Houzet, Manuel
name: Meyer, Julia S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study charge transport through a metallic dot coupled to a superconducting and a ferromagnetic lead with a precessing magnetization due to ferromagnetic resonance. Using the quasiclassical theory, we find that the magnetization precession induces a dc current in the subgap regime even in the absence of a bias voltage. This effect is due to the rectification of the ac spin currents at the interface with the ferromagnet; it exists in the absence of spin current in the superconductor. When the dot is strongly coupled to the superconductor, we find a strong enhancement in a wide range of parameters as compared to the induced current in the normal state.
description: 5 pages, 3 figures
Desorption of n-alkanes from graphene: a van der Waals density functional study
Creators: name: Londero, Elisa
name: Karlson, Emma K.
name: Landahl, Marcus
name: Ostrovskii, Dimitri
name: Rydberg, Jonatan D.
name: Schröder, Elsebeth
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A recent study of temperature programmed desorption (TPD) measurements of small n-alkanes (CNH2N+2) from C(0001) deposited on Pt(111) shows a linear relationship of the desorption energy with increasing n-alkane chain length. We here present a van der Waals density functional study of the desorption barrier energy of the ten smallest n-alkanes (N = 1 to 10) from graphene. We find linear scaling with N, including a nonzero intercept with the energy axis, i.e., an offset at the extrapolation to N = 0. This calculated offset is quantitatively similar to the results of the TPD measurements. From further calculations of the polyethylene polymer we offer a suggestion for the origin of the offset.
description: 3 pictures, 1 table
Phonon Hydrodynamics in Fluorides, Alkali Hydrides, and Bilayer Graphene
Creators: name: Abou Haibeh, Jamal
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Phonon hydrodynamics
Second sound
First-principles calculations

description: Previous experimental studies have reported wave-like transport of heat in a small number of material systems, such as superfluids like helium II and crystal solids like bismuth. This phenomenon was henceforth referred to as 'second sound'. These rare observations of second sound are partly due to the challenge of obtaining accurate theoretical predictions. In this work, we use an ab-initio framework to study phonon hydrodynamics in 3D crystal fluorides and alkali hydrides, including sodium fluoride (NaF), lithium fluoride (LiF), lithium hydride (LiH), and sodium hydride (NaH). Moreover, we predict the existence of phonon hydrodynamics regime in bilayer graphene systems, including AA-bilayer graphene and AB-bilayer graphene. First, we obtain the second and third-order interatomic force constants using first-principles calculations, which are based on density functional theory (DFT). Secondly, we calculate the lattice thermal conductivity and phonon scattering rates by solving the Boltzmann transport equation (BTE). Thirdly, we apply Guyer's condition to show the phonon hydrodynamics regime based on the average Normal, Umklapp, and Boundary scattering rates. Finally, we examine the effect of different pseudopotentials on the thermal, electronic, and mechanical properties as well as the phonon hydrodynamics regime. In addition, we report the effect of isotopes on the lattice thermal conductivity and phonon hydrodynamics regime. Our calculations predict the existence of the second sound in NaF at 15 K and 8.3 mm characteristic length, consistent with previous experimental work. Based on Guyer's condition, the hydrodynamic window was determined in terms of characteristic lengths (~10² - ~10⁸ nm) and temperatures (up to ~80 K) for fluorides and alkali hydrides. On the other hand, second sound in 2D materials has been predicted to exist at much higher temperatures relative to 3D materials. We report the existence of a second sound for AA-bilayer graphene and AB-bilayer graphene above room temperature at a characteristic length of ~100 nm.
Analysis of Non-Linear Probabilistic Hybrid Systems
Creators: name: Assouramou, Joseph
name: Desharnais, Josée
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This paper shows how to compute, for probabilistic hybrid systems, the clock approximation and linear phase-portrait approximation that have been proposed for non probabilistic processes by Henzinger et al. The techniques permit to define a rectangular probabilistic process from a non rectangular one, hence allowing the model-checking of any class of systems. Clock approximation, which applies under some restrictions, aims at replacing a non rectangular variable by a clock variable. Linear phase-approximation applies without restriction and yields an approximation that simulates the original process. The conditions that we need for probabilistic processes are the same as those for the classic case.
description: In Proceedings QAPL 2011, arXiv:1107.0746
A Combinatorial Optimisation Approach to Designing Dual-Parented Long-Reach Passive Optical Networks
Creators: name: Cambazard, Hadrien
name: Mehta, Deepak
name: O'Sullivan, Barry
name: Quesada, Luis
name: Ruffini, Marco
name: Payne, David
name: Doyle, Linda
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present an application focused on the design of resilient long-reach passive optical networks. We specifically consider dual-parented networks whereby each customer must be connected to two metro sites via local exchange sites. An important property of such a placement is resilience to single metro node failure. The objective of the application is to determine the optimal position of a set of metro nodes such that the total optical fibre length is minimized. We prove that this problem is NP-Complete. We present two alternative combinatorial optimisation approaches to finding an optimal metro node placement using: a mixed integer linear programming (MIP) formulation of the problem; and, a hybrid approach that uses clustering as a preprocessing step. We consider a detailed case-study based on a network for Ireland. The hybrid approach scales well and finds solutions that are close to optimal, with a runtime that is two orders-of-magnitude better than the MIP model.
description: University of Ulster, Intelligent System Research Centre, technical report series. ISSN 2041-6407
Learning from users for radical innovation
Creators: name: Lettl, Christopher
name: Herstatt, Cornelius
name: Gemünden, Hans Georg
Publisher: name: TUHH Universitätsbibliothek
Year: 2004
Subjects: classificationCode: 85.15
subject: Forschung und Entwicklung
subject: Produktinnovation
subject: Produktentwicklung
subject: Benutzer / Beteiligung

description: In today’s environment of rapid technological change companies can not rely on incremental innovations alone. To sustain long-term competitiveness companies need to develop radical innovations as well. Such innovations typically incorporate new and highly complex technologies, create new markets or shift existing market structures, and require user learning as they often induce significant behaviour changes on side of the users. To systematically develop radical innovations firms need to involve the proper actors. One such important external actor in the development process of new products is the user. Our study focuses on the question what kind of users are able to actively contribute to the development of radical innovations and what firms can learn from them to improve their innovative capability. A multiple case study analysis was conducted in the field of medical technology. Five radical innovation projects were selected including medical robots and computer-assisted navigation systems. The case study analysis reveals that users with a unique set of characteristics can contribute substantially to the development of radical innovations. These users have a high motivation toward new solutions, are open to new technologies, possess diverse competencies, and are embedded into a very supportive context. Manufacturers that took over the ideas and prototypes of the inventive users benefited significantly. By learning from these users, firms were able to significantly improve their radical innovative capability. The paper contributes to technology and innovation management research in two ways. First, by exploring critical user characteristics for distinct phases of the radical innovation process, we provide first insights how manufacturing firms can more effectively identify and leverage valuable users for their radical innovation work. Thereby, we highlight the involvement of capable users as an effective learning mechanism to improve the radical innovation capability of a firm. Second, new perspectives on lead user research are provided by enriching the lead user concept with other crucial characteristics of innovative users.
12.2-GHz methanol maser MMB follow-up catalogue - I. Longitude range 330 to 10 degrees
Creators: name: Breen, Shari
name: Ellingsen, Simon
name: Caswell, James
name: Green, James
name: Voronkov, Maxim
name: Fuller, Gary
name: Quinn, Lyshia
name: Avison, Adam
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a catalogue of 12.2-GHz methanol masers detected towards 6.7-GHz methanol masers observed in the unbiased Methanol Multibeam (MMB) survey in the longitude range 330\circ (through 360\circ) to 10\circ. This is the first portion of the catalogue which, when complete, will encompass all of the MMB detections. We report the detection of 184 12.2-GHz sources towards 400 6.7-GHz methanol maser targets, equating to a detection rate of 46 per cent. Of the 184 12.2-GHz detections, 117 are reported here for the first time. We draw attention to a number of 'special' sources, particularly those with emission at 12.2-GHz stronger than their 6.7-GHz counterpart and conclude that these unusual sources are not associated with a specific evolutionary stage.
description: accepted to MNRAS 21 Dec 2011
Distances for Weighted Transition Systems: Games and Properties
Creators: name: Fahrenberg, Uli
name: Thrane, Claus
name: Larsen, Kim G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We develop a general framework for reasoning about distances between transition systems with quantitative information. Taking as starting point an arbitrary distance on system traces, we show how this leads to natural definitions of a linear and a branching distance on states of such a transition system. We show that our framework generalizes and unifies a large variety of previously considered system distances, and we develop some general properties of our distances. We also show that if the trace distance admits a recursive characterization, then the corresponding branching distance can be obtained as a least fixed point to a similar recursive characterization. The central tool in our work is a theory of infinite path-building games with quantitative objectives.
description: In Proceedings QAPL 2011, arXiv:1107.0746
title: Структурно-функциональные показатели миокарда по результатам эхокардиографии в возрастном аспекте
Creators: name: Павлова, Вероника
name: Лесько, Алеся
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Описаны корреляционные связи между возрастом, полом, наличием хронических заболеваний и состоянием стенок левого желудочка сердца по данным эхокардиограммы сердца. При обследовании группы людей из 80 человек (40 женщин и 40 мужчин) разных возрастных групп было обнаружено, что с возрастом наблюдается увеличение толщины свободной и задней стенок левого желудочка, увеличение толщины межжелудочковой перегородки и уменьшение конечного диастолического объема, связанного с концентрическим ремоделированием сердца. При этом у женщин гипертрофия миокарда левого желудочка наблюдалась чаще, чем у испытуемых мужского пола, что связано с кардиопротективным действие эстрогенов, количество которых снижается у женщин после 45 в связи с наступлением менопаузы.
Luescher formula for GKP string
Creators: name: Basso, B.
name: Belitsky, A. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate finite-size corrections to anomalous dimensions of large-spin twist-two operators in the planar maximally supersymmetric Yang-Mills theory. We develop a framework for analysis of these corrections, that is complementary to the conventional spin-chain approach, by making use of the hole rather than the magnon picture. From the dual string theory perspective where the large-spin operator is identified with the Gubser-Klebanov-Polyakov (GKP) string, our approach is equivalent to constructing the first Luescher correction to the energy of the GKP string by incorporating the contribution of virtual excitations propagating on it. It allows us to propose a formula that controls a particular class of large-spin corrections to the twist-two anomalous dimension and holds at any value of the coupling constant. Compared to wrapping corrections computed with magnons propagating on the spin chain, the finite-size corrections that are encoded in our formalism start at a lower loop level. Our formalism thus calls for modification of the asymptotic contributions which are conventionally incorporated within the Asymptotic Bethe Ansatz. An educated guess allows us to remedy this pitfall and successfully confront our predictions with known results up to five loop accuracy at weak coupling. Finally, our formula sheds light on the weak-to-strong coupling transition for the subleading large-spin corrections under study and confirms stringy expectations at strong coupling where they are found to be identical to the first Luescher correction to the vacuum energy of the O(6) sigma model.
description: 78 pages, 8 figures
A critical look at the role of the bare parameters in the renormalization of Phi-derivable approximations
Creators: name: Reinosa, Urko
name: Szép, Zsolt
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We revisit the renormalization of Phi-derivable approximations from a slightly different point of view than the one which is usually followed in previous works. We pay particular attention to the question of the existence of a solution to the self-consistent equation that defines the two-point function in the Cornwall-Jackiw-Tomboulis formalism and to the fact that some of the ultraviolet divergences which appear if one formally expands the solution in powers of the bare coupling do not always appear as divergences at the level of the solution itself. We discuss these issues using a particular truncation of the Phi functional, namely the simplest truncation which brings non-trivial momentum and field dependence to the two-point function.
description: 30 pages, 12 figures
title: Eine Methode zur optimalen Redundanzallokation im Vorentwurf fehlertoleranter Flugzeugsysteme
title: An optimal redundancy allocation method for the preliminary design of fault-tolerant aircraft systems
titleType: AlternativeTitle
Creators: name: Raksch, Christian
Publisher: name: TUHH Universitätsbibliothek
Year: 2013
Subjects: subject: Sicherheit
subject: Zuverlässigkeit
subject: Optimierung
subject: Flugzeug
subject: Systemtechnik
subject: safety
subject: reliability
subject: optimization
subject: aircraft
subject: system
classificationCode: 620
subject: Ingenieurwissenschaften
classificationCode: 620
subject: Engineering and allied operations
classificationCode: 55.50
subject: Luftfahrzeugtechnik

description: Diese Arbeit liefert einen Beitrag zur methodischen Architekturauswahl im Vorentwurf fehlertoleranter Flugzeugsysteme. Ein bestehendes Analysemodell zur Sicherheits- und Zuverlässigkeitsanalyse wird hierfür um eine Redundanzallokation mittels drei konditionierter multikriterieller Optimierungsalgorithmen erweitert. Als Zielgrößen können dabei Sicherheits- und Zuverlässigkeitswerte unterschiedlicher Fehlerbedingungen komplexer Logiken betrachtet werden sowie konträre, summative Komponentenparameter, wie die Abschätzung der Systemmasse. Ein hierachischer Auswahlprozess dient zur anschließenden Reduktion der ermittelten Pareto-Menge. Die Methode wird abschließend auf die Entwicklung eines elektrischen Energieversorgungssystems angewendet.
description: This thesis provides a methodological contribution to architecture selection in the preliminary design of fault-tolerant aircraft systems. Therefore, an existing analytical model for safety and reliability analysis has been enhanced by including aspects of redundancy allocation using three conditioned multi-objective optimization algorithms. As objective functions safety and reliability of different failure conditions of complex logics can be considered, beside additional contradictory, summative component parameters, such as estimating the system mass. A hierarchical decisionmaking process is used for further reduction of the determined Pareto set. Conclusively, the method is applied to the design of an electrical power generation and distribution system.
X-ray Groups of Galaxies at 0.5
Creators: name: Tanaka, M.
name: Finoguenov, A.
name: Lilly, S. J.
name: Bolzonella, M.
name: Carollo, C. M.
name: Contini, T.
name: Iovino, A.
name: Kneib, J. -P.
name: Lamareille, F.
name: Fevre, O. Le
name: Mainieri, V.
name: Presotto, V.
name: Renzini, A.
name: Scodeggio, M.
name: Silverman, J. D.
name: Zamorani, G.
name: Bardelli, S.
name: Bongiorno, A.
name: Caputi, K.
name: Cucciati, O.
name: de la Torre, S.
name: de Ravel, L.
name: Franzetti, P.
name: Garilli, B.
name: Kampczyk, P.
name: Knobel, C.
name: Kovac, K.
name: Borgne, J. -F. Le
name: Brun, V. Le
name: Lopez-Sanjuan, C.
name: Maier, C.
name: Mignoli, M.
name: Pello, R.
name: Peng, Y.
name: Montero, E. Perez
name: Tasca, L.
name: Tresse, L.
name: Vergani, D.
name: Zucca, E.
name: Barnes, L.
name: Bordoloi, R.
name: Cappi, A.
name: Cimatti, A.
name: Coppa, G.
name: Koekemoer, A. M.
name: McCracken, H. J.
name: Moresco, M.
name: Nair, P.
name: Oesch, P.
name: Pozzetti, L.
name: Welikala, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a photometric and spectroscopic study of galaxies at 0.5
description: 11 pages, 7 figures, accepted for publication in PASJ
On the pulse-width statistics in radio pulsars. III. Importance of the conal profile components
Creators: name: Maciesiak, K.
name: Gil, J.
name: Melikidze, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This work is a continuation of two previous papers of a series, in which we examined the pulse-width statistics of normal radio pulsars. In the first paper we compiled the largest ever database of pulsars with interpulses in their mean profiles. In the second one we confirmed the existence of the lower boundary in the scatter plot of core component pulse-widths versus pulsar period W50 sim 2.5 P^{-0.5}[deg], first discovered by Rankin using much smaller number of interpulse cases. In this paper we show that the same lower boundary also exists for conal profile components. Rankin proposed a very simple method of estimation of pulsar inclination angle based on comparing the width W50 of its core component with the period dependent value of the lower boundary. We claim that this method can be extended to conal components as well. To explain an existence of the lower boundary Rankin proposed that the core emission originates at or near the polar cap surface. We demonstrated clearly that no coherent pulsar radio emission can originate at altitudes lower than 10 stellar radii, irrespective of the actual mechanism of coherence. We argue that the lower boundary reflects the narrowest angular structures that can be distinguished in the average pulsar beam. These structures represent the core and the conal components in mean pulsar profiles. The P^{-0.5} dependence follows from the dipolar nature of magnetic field lines in the radio emission region, while the numerical factor of about 2.5 deg reflects the curvature radius of a non-dipolar surface magnetic field in the partially screened gap above the polar cap, where dense electron-positron plasma is created. Both core and conal emission should originate at altitudes of about 50 stellar radii in a typical pulsar, with a possibility that the core beam is emitted at a slightly lower heights than the conal ones.
description: 13 pages, 5 figures
Kinematics and excitation of the ram pressure stripped ionized gas filaments in the Coma cluster of galaxies
Creators: name: Yoshida, Michitoshi
name: Yagi, Masafumi
name: Komiyama, Yutaka
name: Furusawa, Hisanori
name: Kashikawa, Nobunari
name: Hattori, Takashi
name: Okamura, Sadanori
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of deep imaging and spectroscopic observations of very extended ionized gas (EIG) around four member galaxies of the Coma cluster of galaxies: RB199, IC4040, GMP2923 and GMP3071. The EIGs were serendipitously found in an H-alpha narrow band imaging survey of the central region of the Coma cluster. The relative radial velocities of the EIGs with respect to the systemic velocities of the parent galaxies from which they emanate increase almost monotonically with the distance from the nucleus of the respective galaxies, reaching -400 - -800 km/s at around 40 - 80 kpc from the galaxies. The one-sided morphologies and the velocity fields of the EIGs are consistent with the predictions of numerical simulations of ram pressure stripping. We found a very low-velocity filament (v_rel = -1300 km/s) at the southeastern edge of the disk of IC4040. Some bright compact knots in the EIGs of RB199 and IC4040 exhibit blue continuum and strong H-alpha emission. The equivalent widths of the H-alpha emission exceed 200 A, and are greater than 1000 A for some knots. The emission line intensity ratios of the knots are basically consistent with those of sub-solar abundance HII regions. These facts indicate that intensive star formation occurs in the knots. Some filaments, including the low velocity filament of the IC4040 EIG, exhibit shock-like emission line spectra, suggesting that shock heating plays an important role in ionization and excitation of the EIGs.
description: Accepted for publication in The Astrophysical Journal. 14 pages, 23 figures, emulateapj format
Mapping quantum-classical Liouville equation: projectors and trajectories
Creators: name: Kelly, Aaron
name: van Zon, Ramses
name: Schofield, Jeremy
name: Kapral, Raymond
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The evolution of a mixed quantum-classical system is expressed in the mapping formalism where discrete quantum states are mapped onto oscillator states, resulting in a phase space description of the quantum degrees of freedom. By defining projection operators onto the mapping states corresponding to the physical quantum states, it is shown that the mapping quantum-classical Liouville operator commutes with the projection operator so that the dynamics is confined to the physical space. It is also shown that a trajectory-based solution of this equation can be constructed that requires the simulation of an ensemble of entangled trajectories. An approximation to this evolution equation which retains only the Poisson bracket contribution to the evolution operator does admit a solution in an ensemble of independent trajectories but it is shown that this operator does not commute with the projection operators and the dynamics may take the system outside the physical space. The dynamical instabilities, utility and domain of validity of this approximate dynamics are discussed. The effects are illustrated by simulations on several quantum systems.
description: 4 figures
A two-step approach to model precipitation extremes in California based on max-stable and marginal point processes
Creators: name: Shang, Hongwei
name: Yan, Jun
name: Zhang, Xuebin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In modeling spatial extremes, the dependence structure is classically inferred by assuming that block maxima derive from max-stable processes. Weather stations provide daily records rather than just block maxima. The point process approach for univariate extreme value analysis, which uses more historical data and is preferred by some practitioners, does not adapt easily to the spatial setting. We propose a two-step approach with a composite likelihood that utilizes site-wise daily records in addition to block maxima. The procedure separates the estimation of marginal parameters and dependence parameters into two steps. The first step estimates the marginal parameters with an independence likelihood from the point process approach using daily records. Given the marginal parameter estimates, the second step estimates the dependence parameters with a pairwise likelihood using block maxima. In a simulation study, the two-step approach was found to be more efficient than the pairwise likelihood approach using only block maxima. The method was applied to study the effect of El Niño-Southern Oscillation on extreme precipitation in California with maximum daily winter precipitation from 35 sites over 55 years. Using site-specific generalized extreme value models, the two-step approach led to more sites detected with the El Niño effect, narrower confidence intervals for return levels and tighter confidence regions for risk measures of jointly defined events.
description: Published at http://dx.doi.org/10.1214/14-AOAS804 in the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Computing Distances between Probabilistic Automata
Creators: name: Tracol, Mathieu
name: Desharnais, Josée
name: Zhioua, Abir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We present relaxed notions of simulation and bisimulation on Probabilistic Automata (PA), that allow some error epsilon. When epsilon is zero we retrieve the usual notions of bisimulation and simulation on PAs. We give logical characterisations of these notions by choosing suitable logics which differ from the elementary ones, L with negation and L without negation, by the modal operator. Using flow networks, we show how to compute the relations in PTIME. This allows the definition of an efficiently computable non-discounted distance between the states of a PA. A natural modification of this distance is introduced, to obtain a discounted distance, which weakens the influence of long term transitions. We compare our notions of distance to others previously defined and illustrate our approach on various examples. We also show that our distance is not expansive with respect to process algebra operators. Although L without negation is a suitable logic to characterise epsilon-(bi)simulation on deterministic PAs, it is not for general PAs; interestingly, we prove that it does characterise weaker notions, called a priori epsilon-(bi)simulation, which we prove to be NP-difficult to decide.
description: In Proceedings QAPL 2011, arXiv:1107.0746
Talking to the Girls: Intimate and Political Essays on the Triangle Shirtwaist Factory Fire. Edited by Edvige Giunta and Mary Ann Trasciatti
Creators: name: Marinari, Maddalena
Publisher: name: Iperstoria
Year: 2023

description: Review of Intimate and Political Essays on the Triangle Shirtwaist Factory Fire, edited by Edvige Giunta and Mary Ann Trasciatti.
description: Iperstoria, No. 21 (2023): ICT Affordances and Higher Education: From Face-to-Face to Online Classroom-Based Activities
Matrix Quantization of Turbulence
Creators: name: Floratos, Emmanuel
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Based on our recent work on Quantum Nambu Mechanics $\cite{af2}$, we provide an explicit quantization of the Lorenz chaotic attractor through the introduction of Non-commutative phase space coordinates as Hermitian $ N \times N $ matrices in $ R^{3}$. For the volume preserving part, they satisfy the commutation relations induced by one of the two Nambu Hamiltonians, the second one generating a unique time evolution. Dissipation is incorporated quantum mechanically in a self-consistent way having the correct classical limit without the introduction of external degrees of freedom. Due to its volume phase space contraction it violates the quantum commutation relations. We demonstrate that the Heisenberg-Nambu evolution equations for the Matrix Lorenz system develop fast decoherence to N independent Lorenz attractors. On the other hand there is a weak dissipation regime, where the quantum mechanical properties of the volume preserving non-dissipative sector survive for long times.
description: 14 pages, Based on invited talks delivered at: Fifth Aegean Summer School, "From Gravity to Thermal Gauge theories and the AdS/CFT Correspondance", September 2009, Milos, Greece; the Intern. Conference on Dynamics and Complexity, Thessaloniki, Greece, 12 July 2010; Workshop on "AdS4/CFT3 and the Holographic States of Matter", Galileo Galilei Institute, Firenze, Italy, 30 October 2010
Characterization of the power excess of solar-like oscillations in red giants with Kepler
Creators: name: Mosser, B.
name: Elsworth, Y.
name: Hekker, S.
name: Huber, D.
name: Kallinger, T.
name: Mathur, S.
name: Belkacem, K.
name: Goupil, M. J.
name: Samadi, R.
name: Barban, C.
name: Bedding, T. R.
name: Chaplin, W. J.
name: Garcia, R. A.
name: Stello, D.
name: De Ridder, J.
name: Middour, C. K.
name: Morris, R. L.
name: Quintana, E. V
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim to describe the oscillation power excess observed in Kepler red giants, and to investigate empirical scaling relations governing these parameters. From these scalings relations, we derive new physical properties of red giant oscillations. Various different methods were compared in order to validate the processes and to derive reliable output values. For consistency, a single method was then used to determine scaling relations for the relevant global asteroseismic parameters: mean mode height, mean height of the background signal superimposed on the oscillation power excess, width of the power excess, bolometric amplitude of the radial modes and visibility of non-radial modes. A method for deriving oscillation amplitudes is proposed, which relies on the complete identification of the red giant oscillation spectrum. The comparison of the different methods has shown the important role of the way the background is modelled. The convergence reached by the collaborative work enables us to derive significant results concerning the oscillation power excess. We obtain several scaling relations, and identify the influence of the stellar mass and the evolutionary status. The effect of helium burning on the red giant interior structure is confirmed: it yields a strong mass-radius relation for clump stars. We find that none of the amplitude scaling relations motivated by physical considerations predict the observed mode amplitudes of red giant stars. In parallel, the degree-dependent mode visibility exhibits important variations. Both effects seem related to the significant influence of the high mode mass of non-radial mixed modes. A family of red giants with very weak dipole modes is identified, and its properties are analyzed.
description: Accepted in A&A