cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Continuum driven winds from super-Eddington stars. A tale of two limits
Creators: name: van Marle, A. J.
name: Owocki, S. P.
name: Shaviv, N. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Continuum driving is an effective method to drive a strong stellar wind. It is governed by two limits: the Eddington limit and the photon-tiring limit. A star must exceed the effective Eddington limit for continuum driving to overcome the stellar gravity. The photon-tiring limit places an upper limit on the mass loss rate that can be driven to infinity, given the energy available in the radiation field of the star. Since continuum driving does not require the presence of metals in the stellar atmosphere it is particularly suited to removing mass from low- and zero-metallicity stars and can play a crucial part in their evolution. Using a porosity length formalism we compute numerical simulations of super-Eddington, continuum driven winds to explore their behaviour for stars both below and above the photon-tiring limit. We find that below the photon tiring limit, continuum driving can produce a large, steady mass loss rate at velocities on the order of the escape velocity. If the star exceeds the photon-tiring limit, a steady solution is no longer possible. While the effective mass loss rate is still very large, the wind velocity is much smaller
description: to be published in the conference proceedings of: First Stars III, Santa Fe, 2007
Polychromatic Electric Field Knots
Creators: name: Ferrer-Garcia, Manuel F.
name: D'Errico, Alessio
name: Sit, Alicia
name: Laroque, Hugo
name: Karimi, Ebrahim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The polarization of a monochromatic optical beam lies in a plane, and in general, is described by an ellipse, known as the polarization ellipse. The polarization ellipse in the tight focusing (non-paraxial) regime forms non-trivial three-dimensional topologies, such as Möbius and ribbon strips, as well as knots. The latter is formed when the dynamics of specific polarization states, e.g., circular polarization states, are studied upon propagation. However, there is an alternative method to generate optical knots: the electric field's tip can be made to evolve along a knot trajectory in time locally. We propose an intuitive technique to generate and engineer the path traced by the electric field vector of polychromatic beams to form different knots. In particular, we show examples of how tightly focused beams with at least three frequency components and different spatial modes can cause the tip of the electric field vector to follow, locally, a knotted trajectory. Furthermore, we characterize the generated knots and explore different knot densities upon free-space propagation in the focal volume. Our study may provide insight for designing current densities when structured polychromatic electromagnetic fields interact with materials.
description: 9 pages, 9 figures, to be submitted
COMPARATIVE ANALYSIS OF HYPERBOLE IN ENGLISH AND UZBEK: CULTURAL CONTEXT AND PRAGMATIC USE
Creators: name: Karimova, Hilola
Publisher: name: Zenodo
Year: 2024

description: Hyperbole, as a rhetorical device characterized by exaggerated statements or claims not meant to be taken literally, plays a crucial role in language and communication across cultures. This linguistic phenomenon transcends mere embellishment; it serves as a mirror reflecting cultural values, emotional expressions, and communicative styles.
Heavy Meson Distribution Amplitudes of Definite Geometric Twist with Contribution of 3-Particle Distribution Amplitudes
Creators: name: Geyer, B.
name: Witzel, O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Under the constraints of HQET the equations of motion of heavy meson distribution amplitudes of definite geometric twist, using the knowledge of their off-cone structure, are reformulated as a set of algebraic equations. Together with equations due to various Dirac structures various relations between the (sets of) independent two- and three particle distribution amplitudes of definite geometric twist are derived and presented using both the notion of (double) Mellin moments and re-summed non-local distribution amplitudes. Resolving these relations for the independent two-particle moments in terms of three-particle double moments we confirmed the representation of $Φ_{\pm|n}$ by Kawamura et al. (Phys. Lett. B \bf{523} (2001) 111).
description: 24 pages
Dynamics of small heavy particles in homogeneous turbulence: a Lagrangian experimental study
Creators: name: Berk, Tim
name: Coletti, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the behavior of microscopic heavy particles settling in homogeneous air turbulence. The regimes are relevant to the airborne transport of dust and droplets: the Taylor-microscale Reynolds number is Re = 289 - 462, the Kolmogorov-scale Stokes number is St = 1.2 - 13, and the Kolmogorov acceleration is comparable to the gravitational acceleration (i.e., the Froude number Fr = O(1)). We use high-speed laser imaging to track the particles and simultaneously characterize the air velocity field, resolving all relevant spatio-temporal scales. The role of the flow sampled by the particles is spotlighted. In the present range of parameters, the particle settling velocity is enhanced proportionally to the velocity scale of the turbulence. Both gravity and inertia reduce the velocity fluctuations of the particles compared to the fluid; while they have competing effect on the particle acceleration, through the crossing trajectories and inertial filtering mechanisms, respectively. The preferential sampling of high-strain/low-vorticity regions is measurable, but its impact on the global statistics is moderate. The inertial particles have large relative velocity at small separations, which increases their pair dispersion; however, gravity offsets this effect by causing them to experience fluid velocities that decorrelate faster in time compared to tracers. Based on the observations, we derive an analytical model to predict the particle velocity and acceleration variances for arbitrary St, Fr, and Re. This agrees well with the present observations and previous simulations and captures the respective effects of inertia and gravity, both of which play crucial roles in the transport.
Gauge invariances vis-{á}-vis Diffeomorphisms in second order metric gravity: A new Hamiltonian approach
Creators: name: Mukherjee, Pradip
name: Saha, Anirban
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new analysis of the gauge invariances and their unity with diffeomorphism invariances in second order metric gravity is presented which strictly follows Dirac's constrained Hamiltonian approach.
description: 6 Pages, revTex, paper modified substantially
An application of a Si/CdTe Compton camera for the polarization measurement of hard x-rays from highly charged heavy ions
Creators: name: Tsuzuki, Yutaka
name: Watanabe, Shin
name: Oishi, Shimpei
name: Nakamura, Nobuyuki
name: Numadate, Naoki
name: Odaka, Hirokazu
name: Uchida, Yuusuke
name: Yoneda, Hiroki
name: Takahashi, Tadayuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The methods to measure the polarization of the x-rays from highly charged heavy ions with a significantly higher accuracy than the existing technology is needed to explore relativistic and quantum electrodynamics (QED) effects including the Breit interaction. We developed the Electron Beam Ion Trap Compton Camera (EBIT-CC), a new Compton polarimeter with pixelated multi-layer silicon and cadmium telluride counters. The EBIT-CC detects the three-dimensional position of Compton scattering and photoelectric absorption, and thus the degree of polarization of incoming x-rays can be evaluated. We attached the EBIT-CC on the Tokyo Electron Beam Ion Trap (Tokyo-EBIT) in the University of Electro-Communications. An experiment was performed to evaluate its polarimetric capability through an observation of radiative recombination x-rays emitted from highly charged krypton ions, which were generated by the Tokyo-EBIT. The Compton camera of the EBIT-CC was calibrated for the 75 keV x-rays. We developed event reconstruction and selection procedures and applied them to every registered event. As a result, we successfully obtained the polarization degree with an absolute uncertainty of 0.02. This uncertainty is small enough to probe the difference between the zero-frequency approximation and full-frequency-dependent calculation for the Breit interaction, which is expected for dielectronic recombination x-rays of highly charged heavy ions.
description: 11 pages, 15 figures
ВЗАИМОДЕЙСТВИЕ ПОДРАЗДЕЛЕНИЙ ПО ВОПРОСАМ МИГРАЦИИ С ПАСПОРТНО-ВИЗОВЫМИ ЦЕНТРАМИ ПО КОНТРОЛЮ ЗА ИСПОЛНЕНИЕМ ЗАКОНОДАТЕЛЬСТВА В СФЕРЕ МИГРАЦИИ
Creators: name: Татьяна Анатольевна Прудникова
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: паспортно-визовый центр
подразделения
миграция
взаимодействие
формы
методы
законодательство

description: Раскрыты особенности взаимодействия ФГУП «ПВС» МВД России с подразделениями по вопросам миграции по контролю за исполнением законодательства в сфере миграции при оказании государственных услуг.
ОСОБЕННОСТИ УЧАСТИЯ УПРАВЛЕНИЯ ВНУТРЕННИХ ДЕЛ НА МОСКОВСКОМ МЕТРОПОЛИТЕНЕ ГЛАВНОГО УПРАВЛЕНИЯ МВД РОССИИ ПО г. МОСКВЕ В ЛИКВИДАЦИИ ЧРЕЗВЫЧАЙНЫХ СИТУАЦИЙ ТЕХНОГЕННОГО ХАРАКТЕРА
Creators: name: Валерий Григорьевич Акимов
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: чрезвычайные происшествия
чрезвычайные обстоятельства
безопасность транспорта
организация управленческой деятельности
внешнее и внутреннее управление
планирование действий
орган управления и пункт управления
организация взаимодействия

description: Анализируется деятельность правоохранительных органов при возникновении чрезвычайных ситуаций на метрополитене г. Москвы. Даны предложения по совершенствованию деятельности правоохранительных органов и других силовых структур по улучшения совместной деятельности в ходе решения служебно-оперативных задач.
РИСКИ ЭКОНОМИЧЕСКОЙ ПОЛИТИКИ РОССИИ
Creators: name: Павел Анатольевич Кохно
name: Иван Федорович Непомнящих
name: Алексей Анатольевич Артемьев
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: экономика России
инвестиционные ресурсы
санкционное противостояние
заемные инвестиционные средства
торгово-экономическое сотрудничество
предпринимательская активность
бюджетная и денежно-кредитная политика

description: Рассмотрено экономическое положение России; указано, что экономика России остро нуждается в различного рода ресурсах, в первую очередь, инвестиционных. Отмечена особенность современной экономической ситуации, которая состоит в том, что значительное влияние на инвестиционную активность будут оказывать перспективы решения вопросов санкционного противостояния. Если санкции будут усиливаться, то это естественным образом будет тормозить инвестиции, причем не только иностранные, но и отечественные. Ключевую роль для динамики частных инвестиций играют инвестиционный климат, уровень налоговой нагрузки, предсказуемость экономической и налоговой политики. Предложена оценка влияния заемного капитала на сроки реализации инновационных проектов. Обосновано, что в рамках существующей бюджетной и денежно-кредитной политики с жесточайшими ограничениями на увеличение внутреннего спроса запустить устойчивый экономический рост практически невозможно. Учитывая высокую неопределенность экономической ситуации, растущую налоговую нагрузку, непредсказуемость экономической политики, замедление роста мировой экономики и прочие негативные факторы, состояние российской экономики в ближайшие годы будет оставаться непростым. Поэтому население должно стать драйвером экономического роста экономики страны, в том числе за счет развития и роста сектора малого и среднего предпринимательства.
Genus zero Gopakumar-Vafa invariants from open strings
Creators: name: Collinucci, Andrés
name: Sangiovanni, Andrea
name: Valandro, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose a new way to compute the genus zero Gopakumar-Vafa invariants for two families of non-toric non-compact Calabi-Yau threefolds that admit simple flops: Reid's Pagodas, and Laufer's examples. We exploit the duality between M-theory on these threefolds, and IIA string theory with D6-branes and O6-planes. From this perspective, the GV invariants are detected as five-dimensional open string zero modes. We propose a definition for genus zero GV invariants for threefolds that do not admit small crepant resolutions. We find that in most cases, non-geometric T-brane data is required in order to fully specify the invariants.
description: 31 pages
ОПРЕДЕЛЕНИЕ УЯЗВИМОСТЕЙ ОТМЫВАНИЯ ДОХОДОВ, ПОЛУЧЕННЫХ ПРЕСТУПНЫМ ПУТЕМ, И ИХ ПРЕДУПРЕЖДЕНИЕ В БАНКОВСКОЙ СИСТЕМЕ
Creators: name: Ирина Викторовна Филатова
name: Елена Ивановна Кузнецова
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: уязвимость
отмывание доходов полученных преступным путем
сфера ПОД/ФТ
риски банковской системы
предупреждение рисков

description: Определено, что в научных исследованиях по проблемам обеспечения экономической безопасности вполне применим термин «уязвимость» не только как элемент оценки риска отмывания денег в сфере ПОД/ФТ, но и как возможность нанесения ущерба финансовой системе путем совершения финансовых операций в целях отмывания преступных доходов. В соответствии с этим проведен анализ уязвимостей банковской системы на современном этапе, противодействие которым способно обеспечить повышение уровня экономической безопасности. В качестве угроз определены: высокая доля теневой экономики и оборота наличных денежных средств, сокрытие результатов получения денежных средств и активов.
Heat Trace Asymptotics on Noncommutative Spaces
Creators: name: Vassilevich, Dmitri V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This is a mini-review of the heat kernel expansion for generalized Laplacians on various noncommutative spaces. Applications to the spectral action principle, renormalization of noncommutative theories and anomalies are also considered.
description: This is a contribution to the Proceedings of the 2007 Midwest Geometry Conference in honor of Thomas P. Branson, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Material survey for millimeter-wave absorber using 3-D printed mold
Creators: name: Otsuka, T.
name: Adachi, S.
name: Hattori, M.
name: Sakurai, Y.
name: Tajima, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. For astronomical applications, cryogenic receivers are widely used to achieve a high-sensitivity. These cryogenic receivers, in particular the receivers for the cosmic microwave background, require that the RAM has low surface reflectance ($\lesssim 1\%$) in a wide frequency range (20--300 GHz) to minimize the undesired stray light to detectors. We develop a RAM that satisfies this requirement based on a production technology using a 3D-printed mold (named as RAM-3pm). This method allows us to shape periodic surface structures to achieve a low reflectance. A wide range of choices for the absorptive materials is an advantage. We survey the best material for the RAM-3pm. We measure the index of refraction ($n$) and the extinction coefficient ($κ$) at liquid nitrogen temperature as well as at room temperature of 17 materials. We also measure the reflectance at the room temperature for the selected materials. The mixture of an epoxy adhesive (STYCAST-2850FT) and a carbon fiber (K223HE) achieves the best performance. We estimate the optical performance at the liquid nitrogen temperature by a simulation based on the measured $n$ and $κ$. The RAM-3pm made with this material satisfies the requirement except at the lower edge of the frequency range ($\sim$20 GHz). We also estimate the reflectance of a larger pyramidal structure on the surface. We find a design to satisfy our requirement.
description: 8 pages, 10 figures
Hydrologic responsiveness of a Lower Fraser Valley lowland soil
Creators: name: Abbaspour, Karim
Publisher: name: University of British Columbia
Year: 2010

description: Soil degradation in the lowland soils of the Lower Fraser Valley area is an off-season (September-April) problem. The legacy of the degradation process is encountered every year in the form of ponding which delays farming operations such as cultivation and seeding. It is common for the lowland soils in west Delta to be left in a bare, loose, and therefore unstable state in the fall after harvest. As the result of raindrop impact on such a soil, a disaggregation process takes place which decreases the saturated hydraulic conductivity, the saturated water content, the air entry pressure head, and the water releasing ability of a soil. As a result of these changes the hydrologic responsiveness of a soil will decrease, decreasing its ability to allow rapid infiltration and drainage. The objective of this thesis was firstly, to investigate the causes of the soil structural degradation and secondly, to use some of the soil structural parameters to optimize the responsiveness of a soil and thirdly, to suggest a management model with the objective of improving the hydrologic responsiveness of a lowland soil. To fulfill the above objectives, in the first chapter, the process of soil degradation was studied on large undisturbed soil columns removed from two adjacent locations within an area of Ladner in west Delta, British Columbia. It was found that a disaggregation process caused by the impact of raindrops on a weakly aggregated soil was the main cause of a low hydrologic responsiveness at the beginning of the cultivation season. As a result of degradation of the soil surface layer, a surface seal can form with a saturated hydraulic conductivity in the order of 9.7x10⁻¹⁰ m s⁻¹. A surface seal can effectively decrease the infiltration rate, leading to the formation of a persistent pond which will make a soil untrafficable and unworkable. In the second chapter, a concept of "designer soil" was developed, where a set of "design hydrologic parameters" were identified for a partially hypothetical soil. A soil possessing hydrologic parameters better than the design parameters would therefore display a certain desired hydrologic responsiveness. In the third chapter, a descriptive management model was suggested with the objective of achieving the design parameters as identified in the second chapter.
Γνωσιακά Δίκτυα: εφαρμογή στη μελέτη παραμέτρων του κρητικού μοιρολογιού
Creators: name: Σηφάκης, Ιάκωβος Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: γνωσιοεπιστήμη
συναίσθημα
δίκτυα
γνωσιακός
cognition
cognitive
network
ritual

description: Σκοπός της διδακτορικής διατριβής ήταν η πρόταση μιας νέας μεθόδου, η οποία εξετάζει την αλ-ληλεπίδραση μεταξύ νοητικών παραγόντων και κοινωνικής δικτύωσης στην ανθρώπινη αντίλη-ψη. Η προτεινόμενη θεώρηση συνεξετάζει γνωσιακές, συναισθηματικές, περιβαλλοντικές, κοι-νωνικές και εξελικτικές παραμέτρους, προκειμένου να περιγράψει τη διαμόρφωση της πληρο-φορίας, ως εκπεμπόμενου σήματος, από τη στιγμή της εκπομπής του, έως την ενσωμάτωσή του στις αντιληπτικές δομές και στη διαδικασία αποφάνσεων. Δεδομένου ότι μια πληροφορία περι-λαμβάνει συνήθως υποκειμενισμούς, ασάφειες και ελλείψεις, διαφορετικά υποκείμενα αποκρί-νονται με διαφορετικό τρόπο σε αυτήν. Όσο η πληροφορία ταξιδεύει στο δίκτυο, τροποποιείται, ανασυντίθεται και επανεκπέμπεται. Ως απόρροια αυτής της διαδικασίας, το ίδιο αρχικό σήμα με-ταφέρεται με διαφορετικούς τρόπους στους αποδέκτες του. Τα στοιχεία που παραποιούν την α-κρίβεια των γεγονότων κατά τη διαδρομή από την πηγή στο δέκτη ποικίλλουν, και ενίοτε είναι αφανή ή δυσδιάκριτα. Η όλη διαδικασία εντοπισμού ψευδούς σήματος είναι περίπλοκη, όμως η σωστή εκτίμηση των παραμέτρων που υπεισέρχονται, προσδιορίζει και την ακρίβεια των σχετι-κών προσεγγίσεων. Όλοι οι παράγοντες εξετάζονται εντός ενός παραδεκτού πλαισίου νοητικής αρχιτεκτονικής.
description: The aim of the present thesis was to propose a new method, which examines the interaction be-tween cognitive factors and social networking in human perception. The proposed approach combines cognitive, emotional, environmental, social and evolutionary parameters to describe the formation of information as a transmitted signal, as it spreads from its source until being in-corporated into perceptual structures and processes. Individual responses to incoming infor-mation vary, because information usually includes subjectivities, ambiguities and shortcomings. As the information spreads through social networks is modified, reconstituted, and retransmit-ted. Because of this process, the original signal follows different ways to its addressees. The whole process of detecting a false signal is complicated, but the correct estimation of the pa-rameters involved also determines the accuracy of the related approaches. The consideration of all parameters has to be within an acceptable framework of mental architecture.
Transient fluctuation-induced forces in driven electrolytes after an electric field quench
Creators: name: Mahdisoltani, Saeed
name: Golestanian, Ramin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Understanding how electrolyte solutions behave out of thermal equilibrium is a long-standing endeavor in many areas of chemistry and biology. Although mean-field theories are widely used to model the dynamics of electrolytes, it is also important to characterize the effects of fluctuations in these systems. In a previous work, we showed that the dynamics of the ions in a strong electrolyte that is driven by an external electric field can generate long-ranged correlations manifestly different from the equilibrium screened correlations; in the nonequilibrium steady state, these correlations give rise to a novel long-range fluctuation-induced force (FIF). Here, we extend these results by considering the dynamics of the strong electrolyte after it is quenched from thermal equilibrium upon the application of a constant electric field. We show that the asymptotic long-distance limit of both charge and density correlations is generally diffusive in time. These correlations give rise to long-ranged FIFs acting on the neutral confining plates with long-time regimes that are governed by power-law temporal decays toward the steady-state value of the force amplitude. These findings show that nonequilibrium fluctuations have nontrivial implications on the dynamics of objects immersed in a driven electrolyte, and they could be useful for exploring new ways of controlling long-distance forces in charged solutions.
Enhanced superconductivity in bilayer PtTe$_2$ by alkali-metal intercalations
Creators: name: Wu, Danhong
name: Lin, Yiping
name: Xiong, Lingxiao
name: Li, Junjie
name: Luo, Tiantian
name: Chen, Deyi
name: Zheng, Feipeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Layered platinum tellurium (PtTe2) was recently synthesized with controllable layer numbers down to a monolayer limit. Using ab initio calculations based on anisotropic Midgal-Eliashberg formalism, we show that by rubidium (Rb) intercalation, weak superconductivity in bilayer PtTe2 can be significantly boosted with superconducting Tc = 8 K in the presence of spin-orbit coupling (SOC). The intercalant on one hand mediates the interlayer coupling and serves as an electron donor, leading to large density of states at Fermi energy. On the other hand, it increases the mass-enhancement parameter with electron-phonon coupling strength comparable to that of Pt. The potassium intercalated bilayer PtTe2 has a comparable Tc to the case of Rb intercalation. The relatively high Tc with SOC combined with experimental accessible crystal structures suggest that these superconductors are promising platforms to study the novel quantum physics associated with two-dimensional superconductivity, such as the recently proposed type-II Ising superconductivity.
description: 7 pafges, 4 figures. Accepted by PRB(2021)
Διασυνδεδεμένη θρησκευτικότητα: ο ρόλος των κοινωνικών δικτύων στη θρησκευτική νοηματοδότηση του κόσμου
Creators: name: Τσίλης, Νεκτάριος Λ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Διαδίκτυο
Εκκλησία
Θρησκεία
Πληροφορική
Internet
Church
Religion
Informatics

description: Στην εποχή της εκκοσμίκευσης και της υπέρβασης των θεσμικών ή ιστορικών μορφών θρησκείας, το διαδίκτυο ευνοεί την ανάπτυξη μίας νέας μορφής θρησκευτικότητας, η οποία δεν έχει να κάνει κατ’ ανάγκη με τη σύνδεση και την ένταξη σε παραδοσιακές θρησκείες, αλλά ούτε και με παραδοσιακού τύπου μαγικές πρακτικές. Δημιουργούνται διαδικτυακές κοινότητες οι οποίες τελούν ιερουργίες, προσεύχονται διαδικτυακά, επιτελούν ιερά εικονικά προσκυνήματα και επισκέπτονται εικονικά κοιμητήρια. Επιλέγονται μορφές θρησκευτικότητας που είναι εξατομικευμένες, με χαλαρή σχέση προς βασικά και επίσημα θρησκειακά δόγματα ή κανονισμούς. Οι χρήστες του διαδικτύου μεταφέρουν σε αυτό τον τρόπο νοηματοδότησης και αξιολόγησης των πραγμάτων που ονομάσαμε «κουλτούρα», σχηματίζοντας έτσι την «κουλτούρα του διαδικτύου». Με άλλα λόγια, το να επισκέπτεται κανείς ιστοτόπους που επαγγέλλονται να ανακηρύξουν αυτόν ή κάποιο προσφιλές πρόσωπο σε άγιο, η λεγόμενη αγιοποίηση διά του διαδικτύου, δεν είναι ούτε κάτι που ανάγεται στη δομή του κυβερνοχώρου ούτε κάτι διαφορετικό από αντίστοιχες off line κρίσεις και αξιολογήσεις
description: In the age of secularization and the transcendence of institutional or historical forms of religion, the internet favors the development of a new form of religiosity, which does not necessarily have to do with connection and integration into traditional religions, nor with traditional types of magic. practices. Online communities are created which perform rituals, pray online, perform sacred virtual pilgrimages and visit virtual cemeteries. Forms of religiosity are chosen that are individualized, with a relaxed relationship to basic and official religious doctrines or regulations. Internet users convey in this way the meaning and evaluation of the things we called "culture", thus forming the "culture of the internet". In other words, visiting websites that promise to proclaim him or a loved one a saint, the so-called internet sanctification, is neither something that goes back to the structure of cyberspace nor anything other than corresponding offline judgments and evaluations.
Influence of chemical pressure effects on nonlinear thermal conductivity of intrinsically granular superconductors
Creators: name: Sergeenkov, Sergei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using a 2D model of capacitively coupled Josephson junction arrays (created by a network of twin boundary dislocations with strain fields acting as an insulating barrier between hole-rich domains in underdoped crystals), we study the influence of chemical pressure on nonlinear thermal conductivity (NLTC) of an intrinsically granular superconductor. Quite a substantial enhancement of NLTC is predicted when intrinsic chemoelectric field closely matches the externally produced thermoelectric field. The estimates of the model parameters suggest a realistic possibility to experimentally monitor this effect in non-stoichiometric superconductors.
description: 10 pages, 2 figures
Bounding Fault-Tolerant Thresholds for Purification and Quantum Computation
Creators: name: Kay, Alastair
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we place bounds on when it is impossible to purify a noisy two-qubit state if all the gates used in the purification protocol are subject to adversarial local, independent, noise. It is found that the gate operations must be subject to less than 5.3% error. An existing proof that purification is equivalent to error correction is used to show that this bound can also be applied to concatenated error correcting codes in the presence of noisy gates, and hence gives a limit to the tolerable error rate for a fault-tolerant quantum computer formed by concatenation. This is shown to apply also to the case where error detection and post-selection, as proposed by Knill, is used to enhance the threshold. We demonstrate the trade-off between gate/environmentally induced faulty rotations and qubit loss errors.
description: 8 pages, 6 figures. published version
Global properties of indefinite metrics with parallel Weyl tensor
Creators: name: Derdzinski, Andrzej
name: Roter, Witold
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C50; 53B30

description: This is an exposition of some recent results on ECS manifolds, by which we mean pseudo-Riemannian manifolds of dimensions greater than 3 that are neither conformally flat nor locally symmetric, and have parallel Weyl tensor. All ECS metrics are indefinite. We state two classification theorems, describing the local structure of ECS manifolds, and outline an argument showing that compact ECS manifolds exist in infinitely many dimensions greater than 4. We also discuss some properties of compact manifolds that admit ECS metrics, and provide a list of open questions about compact ECS manifolds.
description: 8 pages; page offset corrected
Aggregate Dynamics in an Evolutionary Network Model
Creators: name: Seufert, Adrian M.
name: Schweitzer, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Molecular Networks (q-bio.MN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We analyze a model of interacting agents (e.g. prebiotic chemical species) which are represended by nodes of a network, whereas their interactions are mapped onto directed links between these nodes. On a fast time scale, each agent follows an eigendynamics based on catalytic support from other nodes, whereas on a much slower time scale the network evolves through selection and mutation of its nodes-agent. In the first part of the paper, we explain the dynamics of the model by means of characteristic snapshots of the network evolution and confirm earlier findings on crashes an recoveries in the network structure. In the second part, we focus on the aggregate behavior of the network dynamics. We show that the disruptions in the network structure are smoothed out, so that the average evolution can be described by a growth regime followed by a saturation regime, without an initial random regime. For the saturation regime, we obtain a logarithmic scaling between the average connectivity per node $\mean{l}_{s}$ and a parameter $m$, describing the average incoming connectivity, which is independent of the system size $N$.
ПРОБЛЕМЫ ПОВЫШЕНИЯ ЭФФЕКТИВНОСТИ ГОСУДАРСТВЕННОЙ ФИНАНСОВО-КРЕДИТНОЙ ПОДДЕРЖКИ ПРЕДПРИНИМАТЕЛЬСТВА
Creators: name: Владимир Артурович Кайтмазов
name: Индира Заурбековна Тогузова
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: государственная поддержка
малый и средний бизнес
субъекты РФ
денежно-кредитная политика

description: Рассматриваются проблемы повышения эффективности государственной финансово-кредитной поддержки предпринимательства. Проведен анализ на уровне субъектов федерации. Выявлены проблемы и пути их решения.
Explicit Rational Solutions of Knizhnik-Zamolodchikov Equation
Creators: name: Sakhnovich, Lev
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34M05, 34M55, 47B38

description: We consider the Knizhnik-Zamolodchikov system of linear differential equations. The coefficients of this system are rational functions generated by elements of the symmetric group $S_{n}$. We assume that parameter $ρ=\pm{1}$. In previous paper we proved that the fundamental solution of the corresponding KZ-equation is rational. Now we construct this solution in the explicit form.
Regularizing properties of the double layer potential of second order elliptic differential operators
Creators: name: Dondi, Francesco
name: de Cristoforis, Massimo Lanza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 31B10

description: We prove the validity of regularizing properties of a double layer potential associated to the fundamental solution of a {\em nonhomogeneous} second order elliptic differential operator with constant coefficients in Schauder spaces by exploiting an explicit formula for the tangential derivatives of the double layer potential itself. We also introduce ad hoc norms for kernels of integral operators in order to prove continuity results of integral operators upon variation of the kernel, which we apply to layer potentials.
title: Leadership efficiency and Weberian charisma : the case of Gamal Abdel Nasser (1952-1970)
Creators: name: Hassouna, Moustafa El Said
Publisher: name: University of Kent
Year: 2021

description: The purpose or the present study Is two fold (I) To examine the essential components or leadership In general end charismatic leadership In particular, and (II) to construct a generalized model pertaining to the emergence, consolidation and termination of charismatic leadership. In other words, It is an attempt to analyze and explain the various theories on political leadership and scrutinize the Weberlan concept of charisma. Above that, the basic objective of the thesis is the application of political theory and the conceptual framework of charisma to the case of Gamal Abdel Nasser, ruler of Egypt from 1952 until his premature death In 1970. Special focus Is made in the aftermath of the 1967 War and the reinstatement of Nasser as Egypt's leader by popular mandate, following his decision to resign. The thesis Is divided into three sections: The first section, Framework of Analysis and Theoretical Perspective, locks at (I) the definitions, functions and approaches of Political Leadership, and; (Ii) The study, formulation and critique of Weberian Charisma. The second section, the role dynamics, politics, and Impact of Gamal Abdel Nasser, constructs (I) a Political Biography of Nasser( 1918-1970) and, (II) Nasser's cognitive perceptions and the politics of Arab Nationalism. The third section looks at Nasser's leadership impact on the Arabs with specific reference to the 1967 June War. Also Included In this section, Is a generalized model of charismatic political leadership. As conceptualized by Weber, charisma (the gift of Grace) referred to 'a certain quality of an Individual personally by virtue of which he Is set apart from ordinary man and treated as enclosed with supernatural, superhuman, or at least specifically exceptional powers or qualities.' The present thesis has attempted to apply the theory of political leadership and the conceptual tool of charisma to the case study of Nasser's Egypt (1952-1970). In view of Nasser's unique and pervasive role In Egyptian politics, the primary focus of inquiry is the leader himself as he Interacted with the political environment of his time. In the course of one's Investigation, several elements of Weber's formulation of charismatic= authority have been revised. Thus, a number of exceptions to Weber's formulation are brought Into context. Following this, a generalized model of charismatic political leadership Is drawn from this case study.
ОЦЕНКА ИНТЕРЕСОВ И УБЫТКОВ ОРГАНИЗАЦИЙ ПО ПРОИЗВОДСТВУ, ИМПОРТУ И РЕАЛИЗАЦИИ ПРОДОВОЛЬСТВИЯ
Creators: name: Андрей Евгеньевич Ляпин
name: Светлана Юрьевна Мустафина
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: продовольственный рынок
импортозамещение
продукты питания
алкогольная продукция
сельскохозяйственная продукция

description: Проведено исследование уровня продаж продуктов питания, составляющих продуктовую корзину среднестатистического человека. На основе анализа данных государственных органов статистики осуществлена оценка промежуточных итогов процесса импортозамещения на продовольственном рынке; составлен прогноз на краткосрочную перспективу.
New Lax pair for restricted multiple three wave interaction system, quasiperiodic solutions and bi-hamiltonian structure
Creators: name: Kostov, N. A.
name: Tsiganov, A. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study restricted multiple three wave interaction system by the inverse scattering method. We develop the algebraic approach in terms of classical $r$-matrix and give an interpretation of the Poisson brackets as linear $r$-matrix algebra. The solutions are expressed in terms of polynomials of theta functions. In particular case for $n=1$ in terms of Weierstrass functions.
description: 8 pages, revtex4, corrected typos
Forschungsdefizit „Christlich-Soziale“: Erkenntnislücken in Bezug auf christlich-soziale Gewerkschaftsmitglieder im Deutschen Gewerkschaftsbund
Creators: name: Scharlowsky, Volker
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Forschungsdefizit „Christlich-Soziale“: Erkenntnislücken in Bezug auf christlich-soziale Gewerkschaftsmitglieder im Deutschen Gewerkschaftsbund" of MTS 44 (2010).
description: Moving the Social, Vol 44 (2010): Forschungen und Forschungsberichte
title: Deep Off-Policy Evaluation with Autonomous Racing Cars
Creators: name: Kresse, Fabian Georg
Publisher: name: TU Wien
Year: 2024
Subjects: subject: reinforcement learning
subject: autonomous driving
subject: off-policy evaluation
subject: importance sampling

description: Transferring robot policies trained with Reinforcement Learning (RL) from simulation to the real-world is challenging due to frequent overfitting to the simulator’s particularities. This is especially problematic when policy evaluation occurs within the same simulator, as it conceals overfitting, necessitating frequent and costly real-world deployments for accurate performance estimation. Recently Off-Policy Evaluation (OPE) has shown promise in reducing the need for extensive real-world deployment by providing performance estimates based on approximations of real-world data distributions. However, the effectiveness of OPE methods in real-world robotics has not been extensively investigated, with existing benchmarks primarily relying on simulated environments that fail to capture real-world complexities and unpredictability. Addressing this gap, this thesis introduces the first real-world robotics benchmark for OPE methods, utilizing the affordable and accessible F1TENTH platform. As the performance of some of the existing OPE methods is inadequate when applied naively to our investigated F1TENTH environment, we explore specific improvements and benchmark over 20 OPE methods. Among these, we introduce the Termination-aware Per-Decision-Weighted Importance Sampling (TPDWIS) estimator, a novel Importance Sampling (IS) estimator capable of handling trajectories with non-uniform lengths, significantly outperforming previous IS estimators from the literature on our benchmark. Furthermore, we prove the consistency of this new estimator, indicating that it can be applied to more general environments. Finally, we provide recommendations on the most effective OPE methods to employ under specific constraints. Our novel dataset, benchmark, proposed improvements, and new estimator offer a robust foundation for future research and development in real-world OPE methods.
On the k-Symplectic, k-Cosymplectic and Multisymplectic Formalisms of Classical Field Theories
Creators: name: Roman-Roy, Narciso
name: Rey, Angel M.
name: Salgado, Modesto
name: Vilarino, Silvia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70S05, 53D05, 53D10

description: The objective of this work is twofold: First, we analyze the relation between the k-cosymplectic and the k-symplectic Hamiltonian and Lagrangian formalisms in classical field theories. In particular, we prove the equivalence between k-symplectic field theories and the so-called autonomous k-cosymplectic field theories, extending in this way the description of the symplectic formalism of autonomous systems as a particular case of the cosymplectic formalism in non-autonomous mechanics. Furthermore, we clarify some aspects of the geometric character of the solutions to the Hamilton-de Donder-Weyl and the Euler-Lagrange equations in these formalisms. Second, we study the equivalence between k-cosymplectic and a particular kind of multisymplectic Hamiltonian and Lagrangian field theories (those where the configuration bundle of the theory is trivial).
description: 25 pages
ТРЕНДЫ РАЗВИТИЯ РОССИЙСКОГО РЫНКА ЖИЛИЩНОЙ ИПОТЕКИ
Creators: name: Дарья Юрьевна Миронова
name: Диана Игоревна Степанова
Publisher: name: Вестник Московского университета МВД России
Year: 2020
Subjects: ипотека
кредит
ипотечный рынок
ипотечные ставки

description: Рассматривается современное состояние рынка ипотечного кредитования в России, выявляются основные его тенденции и тренды дальнейшего развития по результатам анализа рынка за 2018–2020 гг. Представлены динамика объема выданных ипотечных жилищных кредитов в России, процентных ставок; выявлены предпосылки для роста российского рынка ипотеки.
Displacement and redemption in the Lais of Marie de France
Creators: name: Dunkel, Sharon Lynn
Publisher: name: University of British Columbia
Year: 2010

description: In the endless cycle of life and death, the issues of love and marriage are a constant and recurrent theme of literature. The man, as a foreigner, comes to court the woman with the intent of taking her away from her parents and bringing her into his own home. He must first convince the woman to leave the paternal location. The hearth, the center of the new home and the symbol of his wife, constitutes the one constant and stable aspect of the man's otherwise nomadic existence. The tensions and conflict inherent in this masculine struggle serve to mold and prepare the man for his future role as the protector and provider of his home and society. The woman, for her part, must also undergo -a spatial displacement. Not only must she travel to the new domicile, but she must also be prepared to change and adapt herself to the idea of leaving her birthplace. The vertical movement from the tower to the grove by way of the bedroom constitutes the process of maturation for the lady. Once she has proven herself capable of adulthood, the woman will assist her mate in gaining access to the society he had originally rejected in his search for self. Thus the woman serves as the instrument of God in redeeming the man while maintaining her own individuality, seen in the parallel process of displacement which she experiences. The reader response to the text of the Lais is based upon the realization that the reader also experiences a type of spatial displacement similar to that of the protagonists. Marie, through the use of a variety of literary mechanisms, forces the recipients of the text to go back in time and space to the mythic locale of Bretaigne. The purpose of this narrative technique is that, through identification with the various characters, each reader learns the proper methods of social interaction. In other words, the twelve stories form a manual of courtly etiquette. The Lens of Marie de France are not only for entertainment but for edification as well.
Das Unternehmen als politisches Projekt: Die NEUE HEIMAT 1950–1982
Creators: name: Kramper, Peter
Publisher: name: Moving the Social
Year: 2014

description: The NEUE HEIMAT (NH) was a group of trade-union owned housing companies. It has achieved notoriety due to its spectacular collapse during the 1980s, when a corrupt management and imminent bankruptcy provoked a popular outcry from which Germany’s trade unions have never really recovered since. Furthermore, the scandal surrounding the NH has made a major contribution to the notion that firms are generally not suitable for the implementation of political strategies. The paper tries to examine this hypothesis. It identifies four major phases in the history of the NH and argues that the company was an adequate instrument for tackling the housing deficit, one of the major social challenges of the 1950s and 1960s. However, the problem that the company tried to solve simply disappeared during the 1970s. Instead of adapting to a changing environment, it adhered to its outdated political agenda and organisational structure; hence it crashed. These findings do not, however, contradict the claim that firms can be suitable instruments for pursuing political aims. The success of the group during the earlier phases, which were marked by imperfect competition and a Fordist regime of production, shows that under these circumstances it is very well possible to implement political strategies by the means of business corporations.
description: Moving the Social, Vol 44 (2010): Forschungen und Forschungsberichte
Shell Effects in the First Sound Velocity of an Ultracold Fermi Gas
Creators: name: Salasnich, Luca
name: Toigo, Flavio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the first sound of a normal dilute and ultracold two-component Fermi gas in a harmonic microtube, i.e. a cylinder with harmonic transverse radial confinement in the length-scale of microns. We show that the velocity of the sound that propagates along the axial direction strongly depends on the dimensionality of the system. In particular, we predict that the first-sound velocity display shell effects: by increasing the density, that is by inducing the crossover from one-dimension to three-dimensions, the first-sound velocity shows jumps in correspondence with the filling of harmonic modes. The experimental achievability of these effects is discussed by considering 40K atoms.
description: 6 pages, 1 figure, submitted for the Proceedings of the International Symposium on Quantum Fluids and Solids 2007, Kazan