cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Array-Aware Matching: Taming the Complexity of Large-Scale Simulation Models
Creators: name: Fioravanti, Massimo
name: Cattaneo, Daniele
name: Terraneo, Federico
name: Seva, Silvano
name: Cherubin, Stefano
name: Agosta, Giovanni
name: Casella, Francesco
name: Leva, Alberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: I.6; F.2

description: Equation-based modelling is a powerful approach to tame the complexity of large-scale simulation problems. Equation-based tools automatically translate models into imperative languages. When confronted with nowadays' problems, however, well assessed model translation techniques exhibit scalability issues, that are particularly severe when models contain very large arrays. In fact, such models can be made very compact by enclosing equations into looping constructs, but reflecting the same compactness into the translated imperative code is not trivial. In this paper, we face this issue by concentrating on a key step of equations-to-code translation, the equation/variable matching. We first show that an efficient translation of models with (large) arrays needs awareness of their presence, by defining a figure of merit to measure how much the looping constructs are preserved along the translation. We then show that the said figure of merit allows to define an optimal array-aware matching, and as our main result, that the so stated optimal array-aware matching problem is NP-complete. As an additional result, we propose a heuristic algorithm capable of performing array-aware matching in polynomial time. The proposed algorithm can be proficiently used by model translator developers in the implementation of efficient tools for large-scale system simulation.
ПОДГОТОВКА УЧИТЕЛЕЙ ИНОСТРАННОГО ЯЗЫКА К ИСПОЛЬЗОВАНИЮ BYOD-ТЕХНОЛОГИИ
Creators: name: Ю.В. Сорокопуд
name: А.А. Капина
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: BYOD-технологии
процесс обучения
иностранный язык в школе
общеобразовательная школа
подготовка учителей

description: В данной статье рассматривается проблема внедрения BYOD-технологии на уроках иностранного языка в школе. Представлены педагогические, социальные, физиологические и технические проблемы внедрения BYOD-технологии в учебный процесс. Выявлено положительное влияние BYOD-технологии на качество образовательного процесса на уроках иностранного языка. На основе опроса учителей автор приходит к выводу, что необходима специальная подготовка учителей к реализации BYOD-технологии. Обозначены необходимые знания, умения и навыки учителей для реализации данной технологии на уроках. Представлены результаты подготовки учителей иностранного языка к использованию в своей практической работе BYOD-технологии.
Conjunction and Negation of Natural Concepts: A Quantum-theoretic Modeling
Creators: name: Sozzo, Sandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We perform two experiments with the aim to investigate the effects of negation on the combination of natural concepts. In the first experiment, we test the membership weights of a list of exemplars with respect to two concepts, e.g., {\it Fruits} and {\it Vegetables}, and their conjunction {\it Fruits And Vegetables}. In the second experiment, we test the membership weights of the same list of exemplars with respect to the same two concepts, but negating the second, e.g., {\it Fruits} and {\it Not Vegetables}, and again their conjunction {\it Fruits And Not Vegetables}. The collected data confirm existing results on conceptual combination, namely, they show dramatic deviations from the predictions of classical (fuzzy set) logic and probability theory. More precisely, they exhibit conceptual vagueness, gradeness of membership, overextension and double overextension of membership weights with respect to the given conjunctions. Then, we show that the quantum probability model in Fock space recently elaborated to model Hampton's data on concept conjunction (Hampton, 1988a) and disjunction (Hampton, 1988b) faithfully accords with the collected data. Our quantum-theoretic modeling enables to describe these non-classical effects in terms of genuine quantum effects, namely `contextuality', `superposition', `interference' and `emergence'. The obtained results confirm and strenghten the analysis in Aerts (2009a) and Sozzo (2014) on the identification of quantum aspects in experiments on conceptual vagueness. Our results can be inserted within the general research on the identification of quantum structures in cognitive and decision processes.
description: 32 pages, standard latex, no figures, 16 tables. arXiv admin note: text overlap with arXiv:1311.6050; and text overlap with arXiv:0805.3850 by other authors
Lophiomerycidae Janis 1987
Creators: name: Mennecart, Bastien
name: Aiglstorfer, Manuela
name: Li, Yikun
name: Li, Chunxiao
name: Wang, ShiQi
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Lophiomerycidae

description: Family Lophiomerycidae Janis, 198733. Included genera. Lophiomeryx, Zhailimeryx, Krabimeryx, Chiyoumeryx nov. gen.
description: Published as part of Mennecart, Bastien, Aiglstorfer, Manuela, Li, Yikun, Li, Chunxiao & Wang, ShiQi, 2021, Ruminants reveal Eocene Asiatic palaeobiogeographical provinces as the origin of diachronous mammalian Oligocene dispersals into Europe, pp. 1-12 in Scientific Reports 1 on page 2, DOI: 10.1038/s41598-021-96221-x, http://zenodo.org/record/5645747
Radicalization phenomena: Phase transitions, extinction processes and control of violent activities
Creators: name: Crokidakis, Nuno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work we study a simple mathematical model to analyze the emergence and control of radicalization phenomena. The population consisits of core and sensitive subpopulations, and their ways of life may be at least partially incompatible. In such a case, if a conflict exist, core agents act as inflexible individuals about the issue. On the other hand, the sensitive agents choose between two options: live peacefully with core population, or oppose it. This kind of modeling was recently considered by Galam and Javarone (2016) with constant pairwise couplings. Here, we consider the more general case with time-dependent transition rates, with the aim of study the impact of such time dependence on the critical behavior of the model. The analytical and numerical results show that the nonequilibrium active-absorbing phase transition can be suppressed in some cases, with the destruction of the absorbing phase where the radical agents disappear of the population in the stationary states.
description: 12 pages, 5 figures, to appear in IJMPC
СЛОЖНОСОЧИНЕННЫЕ ПРЕДЛОЖЕНИЯ ОТКРЫТОЙ СТРУКТУРЫ С СОЕДИНИТЕЛЬНЫМИ ОТНОШЕНИЯМИ В ПРАКТИКЕ ПРЕПОДАВАНИЯ РКИ
Creators: name: А.В. Волынская
name: А.С. Цховребов
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: сложносочиненное предложение
русский язык как иностранный
обучение
методика преподавания
практика
аспект

description: В статье рассматриваются сложносочиненные предложения открытой структуры, выражающие соединительные отношения, в практике преподавания русского языка как иностранного. Авторы проанализировали учебно-методический комплекс, предназначенный для обучения иностранцев русскому языку, и выявили, что в отечественной лингвометодике сложносочиненные предложения не рассматриваются в качестве предмета обучения, несмотря на то, что необходимость в использовании данных синтаксических конструкций назревает уже на элементарном уровне владения русским языком. В ходе анализа установлено, что наиболее частотным в практике преподавания РКИ является одиночный союз и, который в основном встречается в сложных конструкциях элементарного формального состава со значением полного, частичного совпадения во времени или же значением следования.
A first glimpse at the line-of-sight structure of the Milky Way's nuclear stellar disc
Creators: name: Nogueras-Lara, Francisco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The nuclear stellar disc (NSD) is a dense stellar structure at the centre of our Galaxy. Given its proximity, it constitutes a unique laboratory to understand other galactic nuclei. Nevertheless, the high crowding and extinction hamper its study, and even its morphology and kinematics are not yet totally clear. In this work we use NSD red clump stars, whose intrinsic properties are well known, to trace the kinematics of the NSD and to compute the distance and extinction towards the edges of the NSD. We used publicly available proper motion and photometric catalogues of the NSD to distinguish red clump stars by using a colour-magnitude diagram. We then applied a Gaussian mixture model to obtain the proper motion distribution, and computed the extinction and distance towards stars with different kinematics. We obtained that the proper motion distributions contain NSD stars rotating eastwards and westwards, plus some contamination from Galactic bulge/bar stars, in agreement with previous work. We computed the distance and extinction towards the eastward- and westward-moving stars and concluded that the latter are $\sim300$ pc beyond, indicating a similar structure along and across the line of sight, and consistent with an axisymmetric structure of the NSD. Moreover, we found that the extinction within the NSD is relatively low and accounts for less than 10 % of the total extinction of the stars belonging to the farthest edge of the NSD.
description: Accepted for publication in A&A. 7 pages, 6 figures
СПЕЦИФИКА КОНФЛИКТОВ В ОБРАЗОВАТЕЛЬНОМ ПРОЦЕССЕ ВУЗА
Creators: name: С.А. Залитинова
name: М.Б. Алиева
name: Б.А. Шихамирова
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: преподаватель
студент
вуз
конфликтные ситуации
предотвращение конфликтных ситуаций
конфликтологическая культура
психологическая культура

description: В статье рассмотрены основные черты конфликтов, возникающих в образовательном процессе современных российских вузов. Проанализированы главные причины, которые могут привести к возникновению конфликтных ситуаций. Кроме того, в ней представлена типологизация подобных конфликтов. Значительное внимание также уделено предотвращению конфликтов в образовательном пространстве организаций, осуществляющих деятельность по программам высшего профессионального образования. Разработана авторская система управления и регулирования конфликтами в вузе. Рассмотрены её компоненты, знания и умения участников образовательного процесса, необходимые для их реализации, а также уровень их конфликтологической культуры.
Global gravity field determination with regional refinements by the analysis of GOCE-level-1b data (GLOREGOCE)
Creators: name: Shabanloui, Akbar
name: Schall, Judith
name: Eicker, Annette
name: Kusche, Jürgen
Publisher: name: Leibniz Universität Hannover
Year: 2012
Subjects: subject: GLOREGOCE
subject: Global Gravity Field Determination
subject: GOCE Level-1B Data
subject: Globale Schwerefeldbestimmung mit regionalen Verfeinerung
subject: GOCE Level-1B Daten
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In this contribution, we present regionally refined gravity field models from GOCE data only using the short arc processing. For easy comparison, regional solutions calculated on small patches all over the globe have been merged and transformed to a spherical harmonic expansion by means of quadrature methods. The power of the regional approach is demonstrated by comparison to the previously calculated ITG-Goce01/ITG-Goce02 spherical harmonic models, which are based on exactly the same processing strategy, standards and data time span. We show, that these global models are comparable in accuracy with respect to the official ESA time-wise models. Second, we verify the gain of regional modelling with respect to our global models: Compared to EGM08 cut to the oceans, using a land/ocean adjustment of regularisation reduces the global noise by 11%. A more tailored choice of the regularisation areas tested for the South Sandwich Trench reveals the significant improvement of 18%.
DEQ-MPI: A Deep Equilibrium Reconstruction with Learned Consistency for Magnetic Particle Imaging
Creators: name: Güngör, Alper
name: Askin, Baris
name: Soydan, Damla Alptekin
name: Top, Can Barış
name: Saritas, Emine Ulku
name: Çukur, Tolga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Magnetic particle imaging (MPI) offers unparalleled contrast and resolution for tracing magnetic nanoparticles. A common imaging procedure calibrates a system matrix (SM) that is used to reconstruct data from subsequent scans. The ill-posed reconstruction problem can be solved by simultaneously enforcing data consistency based on the SM and regularizing the solution based on an image prior. Traditional hand-crafted priors cannot capture the complex attributes of MPI images, whereas recent MPI methods based on learned priors can suffer from extensive inference times or limited generalization performance. Here, we introduce a novel physics-driven method for MPI reconstruction based on a deep equilibrium model with learned data consistency (DEQ-MPI). DEQ-MPI reconstructs images by augmenting neural networks into an iterative optimization, as inspired by unrolling methods in deep learning. Yet, conventional unrolling methods are computationally restricted to few iterations resulting in non-convergent solutions, and they use hand-crafted consistency measures that can yield suboptimal capture of the data distribution. DEQ-MPI instead trains an implicit mapping to maximize the quality of a convergent solution, and it incorporates a learned consistency measure to better account for the data distribution. Demonstrations on simulated and experimental data indicate that DEQ-MPI achieves superior image quality and competitive inference time to state-of-the-art MPI reconstruction methods.
CCD UBVRI photometry of NGC 6811
Creators: name: Yontan, T.
name: Bilir, S.
name: Bostancı, Z. F.
name: Ak, T.
name: Karaali, S.
name: Güver, T.
name: Ak, S.
name: Duran, S.
name: Paunzen, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of CCD UBVRI observations of the open cluster NGC 6811 obtained on 18th July 2012 with the 1m telescope at the TÜBİTAK National Observatory (TUG). Using these photometric results, we determine the structural and astrophysical parameters of the cluster. The mean photometric uncertainties are better than 0.02 mag in the V magnitude and B-V, V-R, and V-I colour indices to about 0.03 mag for U-B among stars brighter than magnitude V=18. Cluster member stars were separated from the field stars using the Galaxia model of Sharma et al. (2011) together with other techniques. The core radius of the cluster is found to be $r_{c}$=3.60 arcmin. The astrophysical parameters were determined simultaneously via Bayesian statistics using the colour-magnitude diagrams V versus B-V, V versus V-I, V versus V-R, and V versus R-I of the cluster. The resulting most likely parameters were further confirmed using independent methods, removing any possible degeneracies. The colour excess, distance modulus, metallicity and the age of the cluster are determined simultaneously as E(B-V)=0.05$\pm$0.01 mag, $μ=10.06\pm0.08$ mag, [M/H]=-0.10$\pm$0.01 dex and t=1.00$\pm$0.05 Gyr, respectively. Distances of five red clump stars which were found to be members of the cluster further confirm our distance estimation.
description: 22 pages, 13 figures and 9 tables, accepted for publication in Astrophysics and Space Science
СПЕЦИФИКА ПОДГОТОВКИ ОБУЧАЮЩИХСЯ К ОСВОЕНИЮ САКСОФОНА В КЛАССЕ ДУХОВЫХ ИНСТРУМЕНТОВ
Creators: name: Л.А. Рассказова
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: ребенок
начальное обучение
музыкальное развитие
игра на музыкальном инструменте
саксофон
блокфлейта

description: В статье рассмотрены трудности, возникающие у обучающихся в классе духовых инструментов в период подготовки к переходу на саксофон. На основании анализа методик обучения на деревянных духовых инструментах делается акцент на возникновении специфических трудностей, а также проблем в начале обучения, присущих освоению саксофона и системе дополнительного музыкального образования в целом. Были выявлены и определены условия и причины возникновения проблем обучения, дана их дифференциация и показаны возможности преодоления. Представленный материал позволяет сделать вывод, что в существующих методиках обучения на саксофоне практически нет места подготовительному этапу. Фокусируется внимание на постановке корпуса и рук, развитии дыхания и формировании амбушюра. Однако крайне мало рассматривается общая первичная подготовка учащегося, а также преодоление трудностей начального обучения у современного ребенка. На основании вышесказанного можно сделать вывод, что растет необходимость в расширении круга проблематики в методике преподавания деревянных духовых инструментов, а также в обновлении ряда методических указаний.
Quantum Haecceity
Creators: name: Kastner, Ruth E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: There is an extensive philosophical literature on the interrelated issues of identity, individuality, and distinguishability in quantum systems. A key consideration is whether quantum systems are subject to a strong form of individuality termed "haecceity" (from the Latin for "this-ness"). I argue that the traditional, strong form of haecceity does not apply at the quantum level, but that in order to properly account for the need for symmetrization in quantum systems, a weaker kind of haecceity must be involved, which I call "quantum haecceity." In the process, I also question some generally accepted tenets of the current debate, such as the idea that symmetrization of states for identical quanta must be postulated and reflects permutation invariance. Instead, I note that a perturbative Hamiltonian is required for exchange effects, which suggests that the need for symmetrization arises from specific physical conditions.
description: Final accepted version, to appear in Proceedings of the Workshop "Identity, Individuality and Indistinguishability in Physics and Mathematics," Philosophical Transactions A
Proving differential privacy in Hoare logic
Creators: name: Barthe, Gilles
name: Gaboardi, Marco
name: Arias, Emilio Jesús Gallego
name: Hsu, Justin
name: Kunz, César
name: Strub, Pierre-Yves
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Differential privacy is a rigorous, worst-case notion of privacy-preserving computation. Informally, a probabilistic program is differentially private if the participation of a single individual in the input database has a limited effect on the program's distribution on outputs. More technically, differential privacy is a quantitative 2-safety property that bounds the distance between the output distributions of a probabilistic program on adjacent inputs. Like many 2-safety properties, differential privacy lies outside the scope of traditional verification techniques. Existing approaches to enforce privacy are based on intricate, non-conventional type systems, or customized relational logics. These approaches are difficult to implement and often cumbersome to use. We present an alternative approach that verifies differential privacy by standard, non-relational reasoning on non-probabilistic programs. Our approach transforms a probabilistic program into a non-probabilistic program which simulates two executions of the original program. We prove that if the target program is correct with respect to a Hoare specification, then the original probabilistic program is differentially private. We provide a variety of examples from the differential privacy literature to demonstrate the utility of our approach. Finally, we compare our approach with existing verification techniques for privacy.
description: Published at the Computer Security Foundations Symposium (CSF), 2014
Prethermal time-crystalline spin ice and monopole confinement in a driven magnet
Creators: name: Yue, Mingxi
name: Cai, Zi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Studies on systems far from equilibrium open up new avenues for investigating exotic phases of matter. A driven-dissipative frustrated spin system is examined in this study, and we suggest an out-of-equilibrium non-magnetic phase where the spins do not order but adhere to the ice rule in space and establish a long-range crystalline order in time. In contrast to the conventional spin ice, the dynamics of monopoles is confined due to the nonequilibrium feature of our model. Possible experimental realizations of our model has been discussed.
description: accepted by Phys. Rev. Lett
Holographic entanglement entropy and subregion complexity for excited states of holographic superconductors
Creators: name: Wang, Dong
name: Qiao, Xiongying
name: Wang, Mengjie
name: Pan, Qiyuan
name: Lai, Chuyu
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the holographic entanglement entropy (HEE) and the holographic subregion complexity (HSC) for holographic superconductors, both in the Einstein and in the Einstein-Gauss-Bonnet gravitational theories. For both ground and excited states, we show that, in the Einstein gravity, the HSC decreases as the temperature increases and the normal phase has a smaller HSC than the superconducting phase, which is opposite to the behavior of the HEE. Moreover, we find out that, for a given temperature $T$ in the superconducting phase, the higher excited state leads to a lager value of the HEE but a smaller value of the HSC. However, the Einstein-Gauss-Bonnet gravity has significantly different effect on the HSC, while the HEE always increases monotonously as the temperature increases and its value in the normal phase always larger than that in the superconducting phase. Our results indicate that the HEE and HSC provide richer physics in phase transitions and condensation of scalar hair for holographic superconductors with excited states.
description: 20 pages, 8 figures, 1 table
Flowstorm: Open-Source Platform with Hybrid Dialogue Architecture
Creators: name: Pichl, Jan
name: Marek, Petr
name: Konrád, Jakub
name: Lorenc, Petr
name: Kobza, Ondřej
name: Zajíček, Tomáš
name: Šedivý, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents a conversational AI platform called Flowstorm. Flowstorm is an open-source SaaS project suitable for creating, running, and analyzing conversational applications. Thanks to the fast and fully automated build process, the dialogues created within the platform can be executed in seconds. Furthermore, we propose a novel dialogue architecture that uses a combination of tree structures with generative models. The tree structures are also used for training NLU models suitable for specific dialogue scenarios. However, the generative models are globally used across applications and extend the functionality of the dialogue trees. Moreover, the platform functionality benefits from out-of-the-box components, such as the one responsible for extracting data from utterances or working with crawled data. Additionally, it can be extended using a custom code directly in the platform. One of the essential features of the platform is the possibility to reuse the created assets across applications. There is a library of prepared assets where each developer can contribute. All of the features are available through a user-friendly visual editor.
A 40Ar/39Ar and U-Pb time scale for the Cretaceous Western Interior Basin, North America
Creators: name: Singer, Brad S.
name: Jicha, Brian R.
name: Sawyer, David
name: Walaszczyk, Ireneusz
name: Landman, Neil
name: Sageman, Bradley B.
name: McKinney, Kevin C.
Publisher: name: Geological Society of London
Year: 2023
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Material Table S1: Cretaceous zonal table Cretaceous Albian — Maastrichtian of the Western Interior of the United States based on Ammonites, Inoceramids and Radiometric Ages (30 August 2023)
The Stability of a Shearing Viscous Star with Electromagnetic Field
Creators: name: Sharif, M.
name: Azam, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyze the role of electromagnetic field for the stability of shearing viscous star with spherical symmetry. Matching conditions are given for the interior and exterior metrics. We use perturbation scheme to construct the collapse equation. The range of instability is explored in Newtonian and post Newtonian (pN) limits. We conclude that the electromagnetic field diminishes the effects of shearing viscosity in the instability range and makes the system more unstable at both Newtonian and post Newtonian approximations.
description: 18 pages, no figure
Area-preserving maps models of gyro-averaged ${\bf E} \times {\bf B}$ chaotic transport
Creators: name: da Fonseca, J. D.
name: del-Castillo-Negrete, D.
name: Caldas, I. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Discrete maps have been extensively used to model 2-dimensional chaotic transport in plasmas and fluids. Here we focus on area-preserving maps describing finite Larmor radius (FLR) effects on ${\bf E} \times {\bf B}$ chaotic transport in magnetized plasmas with zonal flows perturbed by electrostatic drift waves. FLR effects are included by gyro-averaging the Hamiltonians of the maps which, depending on the zonal flow profile, can have monotonic or non-monotonic frequencies. In the limit of zero Larmor radius, the monotonic frequency map reduces to the standard Chirikov-Taylor map, and, in the case of non-monotonic frequency, the map reduces to the standard nontwist map. We show that in both cases FLR leads to chaos suppression, changes in the stability of fixed points, and robustness of transport barriers. FLR effects are also responsible for changes in the phase space topology and zonal flow bifurcations. Dynamical systems methods based on recurrence time statistics are used to quantify the dependence on the Larmor radius of the threshold for the destruction of transport barriers.
description: Accepted for publication in Physics of Plasmas
ПРОФЕССИОНАЛЬНОЕ САМООПРЕДЕЛЕНИЕ МОЛОДЕЖИ (СРАВНИТЕЛЬНЫЙ АНАЛИЗ 1990 – 2020 ГГ.)
Creators: name: Е.М. Авласович
name: О.З. Кузнецова
name: М.В. Васюкова
name: А.В. Зинич
name: Н.Д. Скосырева
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: профессиональное самоопределение
молодежь
сельская молодежь
цифровизация

description: В данной статье рассматривается проблема профессионального самоопределения молодежи. Особое внимание уделено теоретико-методологическому аспекту процесса профессионального самоопределения. Дано его определение, описаны временные рамки данного процесса, основные его этапы, факторы, детерминирующие профессиональный выбор, среди которых следующие: особенности макрои микросреды, а также индивидуальные особенности личности. В статье осуществлен сравнительный анализ процессов профессионального самоопределения молодежи последних 30 лет (1990-е – 2020 гг.). К анализу были привлечены труды известных ученых по молодежным проблемам, данные масштабных мониторинговых исследований, материалы докладов Правительству России о положении молодежи и реализации молодежной политики, а также результаты собственных социологических исследований, проведенных в г. Омске в 1991 г. и 2000 г. В статье показано, как менялись профессиональные и ценностные предпочтения молодежи в зависимости от актуальной социально-экономической и социокультурной ситуации в стране. Обращено особое внимание на малоизученный аспект проблемы – специфику профессионального и жизненного самоопределения сельской молодежи. Авторами определены особенности современного этапа развития общества как всеобщей цифровизации, намечены основные тенденции в процессе профессионального самоопределения молодежи.
Entanglement Generation by Electric Field Background
Creators: name: Ebadi, Zahra
name: Mirza, Behrouz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The quantum vacuum is unstable under the influence of an external electric field and decays into pairs of charged particles, a process which is known as the Schwinger pair production. We propose and demonstrate that this electric field can generate entanglement. Using the Schwinger pair production for constant and pulsed electric fields, we study entanglement for scalar particles with zero spins and Dirac fermions. One can observe the variation of the entanglement produced for bosonic and fermionic modes with respect to different parameters.
description: 10 figures
Chiyoumeryx Mennecart & Aiglstorfer & Li & Li & Wang 2021, nov. gen.
Creators: name: Mennecart, Bastien
name: Aiglstorfer, Manuela
name: Li, Yikun
name: Li, Chunxiao
name: Wang, ShiQi
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Lophiomerycidae
Chiyoumeryx

description: Chiyoumeryx nov. gen. ZooBank LSID. urn:lsid:zoobank.org:act:464C46E0-5A69-4AC1-A9DD-8A7DF76D5CC0. Etymology. Chiyou is a tribe leader of the ancient China, about 5–4 k years ago. Chiyou’s tribe was believed to be in relation with the peoples in southern China; - meryx means ruminant in Greek. Diagnosis. Chiyoumeryx nov. gen. differs from Zhailimeryx and Krabimeryx notably by the absence of the entoconidian groove. Te lower teeth are more laterally compressed in Chiyoumeryx nov. gen. and the metaconid is linguo-labiallly more central than in the two other genera. Te posthypoconulidcristid in the lower molars of Chiyoumeryx nov. gen. is longer than in Krabimeryx and its p4 is posteriorly extended, while this part is reduced in Krabimeryx. Chiyoumeryx nov. gen. differs from Lophiomeryx by the shape of the mandible. In Chiyoumeryx nov. gen. there is no diastema between p1 and p2 and the diastema between c and p1 is extremely reduced. Te outline of the mandible in occlusal view is relatively straight in this species. Lophiomeryx possesses a long diastema between c and p1 and a small one between p1 and p2, as well as a regularly curved occlusal outline of the corpus. Te lower premolars of Chiyoumeryx nov. gen. are laterally compressed giving a more elongated aspect to these teeth than in Lophiomeryx. Te trigonid is smaller than the talonid in m1 and m2 Scientific Reports | in Chiyoumeryx nov. gen. and the preprotocristid terminates centrally and does not reach the lingual side. In Lophiomeryx the trigonid and talonid are of similar size and the preprotocristid is longer and reaches the lingual side. Moreover, in Chiyoumeryx nov. gen., the posthypoconulidcristid is longer than in Lophiomeryx. Te shape of the P4 in Chiyoumeryx nov. gen. differs from the one in Lophiomeryx: the posterolingual crista does not meet the posterolabial crista. Type species. Chiyoumeryx nov. gen. shinaoensis (Miao, 198220). Included species. Chiyoumeryx nov. gen. flavimperatoris nov. sp.;? Chiyoumeryx nov. gen. turgaicus (Flerow 193838).
description: Published as part of Mennecart, Bastien, Aiglstorfer, Manuela, Li, Yikun, Li, Chunxiao & Wang, ShiQi, 2021, Ruminants reveal Eocene Asiatic palaeobiogeographical provinces as the origin of diachronous mammalian Oligocene dispersals into Europe, pp. 1-12 in Scientific Reports 1 on pages 4-5, DOI: 10.1038/s41598-021-96221-x, http://zenodo.org/record/5645747
Hidden Markov Model Based Part of Speech Tagger for Sinhala Language
Creators: name: Jayaweera, A. J. P. M. P.
name: Dias, N. G. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: I.2.7

description: In this paper we present a fundamental lexical semantics of Sinhala language and a Hidden Markov Model (HMM) based Part of Speech (POS) Tagger for Sinhala language. In any Natural Language processing task, Part of Speech is a very vital topic, which involves analysing of the construction, behaviour and the dynamics of the language, which the knowledge could utilized in computational linguistics analysis and automation applications. Though Sinhala is a morphologically rich and agglutinative language, in which words are inflected with various grammatical features, tagging is very essential for further analysis of the language. Our research is based on statistical based approach, in which the tagging process is done by computing the tag sequence probability and the word-likelihood probability from the given corpus, where the linguistic knowledge is automatically extracted from the annotated corpus. The current tagger could reach more than 90% of accuracy for known words.
description: This paper contains 15 Pages, the paper was presented at ICONACC 2014, organized by Manipur University, Imphal, India
CCSRE Social Justice Fellowship: The San Francisco Transgender Cultural District
Creators: name: Solomon, Naomi
Publisher: name: Stanford Digital Repository
Year: 2022
Subjects: subject: Transgender district
subject: community organizing
subject: non-profit

description: This paper discusses the background of the Transgender Cultural District and the context surrounding the transgender community in the Tenderloin. It then summarizes the work that I performed during my ten weeks working at the Transgender Cultural District. It also includes a critical reflection of my experience at the non-profit organization, and what knowledge I took from it.
Emergent diffeomorphism invariance in toy models
Creators: name: Nikolic, Hrvoje
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Conceptual difficulties in semiclassical and quantum gravity arise from diffeomorphism invariance of classical general relativity. With a motivation to shed some light on these difficulties, we study a class of toy models for which one-dimensional diffeomorphism invariance, namely time-reparametrization invariance, emerges at the classical level from energy conservation. An attempt to quantize the models while taking the invariance seriously leads to toy versions of the problem of time in quantum gravity, of the cosmological constant problem, and of the black hole firewall problem. Nevertheless, all these problems are easily resolved by taking into account that the invariance emerges only at the classical level, while the fundamental theory that needs to be quantized is not diffeomorphism invariant.
description: 21 pages, accepted for publication in Fortsch. Phys
Completion, closure, and density relative to a monad, with examples in functional analysis and sheaf theory
Creators: name: Lucyshyn-Wright, Rory B. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Category Theory (math.CT)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Given a monad T on a suitable enriched category B equipped with a proper factorization system (E,M), we define notions of T-completion, T-closure, and T-density. We show that not only the familiar notions of completion, closure, and density in normed vector spaces, but also the notions of sheafification, closure, and density with respect to a Lawvere-Tierney topology, are instances of the given abstract notions. The process of T-completion is equally the enriched idempotent monad associated to T (which we call the idempotent core of T), and we show that it exists as soon as every morphism in B factors as a T-dense morphism followed by a T-closed M-embedding. The latter hypothesis is satisfied as soon as B has certain pullbacks as well as wide intersections of M-embeddings. Hence the resulting theorem on the existence of the idempotent core of an enriched monad entails Fakir's existence result in the non-enriched case, as well as adjoint functor factorization results of Applegate-Tierney and Day.
Full double Hölder regularity of the pressure in bounded domains
Creators: name: De Rosa, Luigi
name: Latocca, Mickaël
name: Stefani, Giorgio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider Hölder continuous weak solutions $u\in C^γ(Ω)$, $u\cdot n|_{\partial Ω}=0$, of the incompressible Euler equations on a bounded and simply connected domain $Ω\subset\mathbb{R}^d$. If $Ω$ is of class $C^{2,1}$ then the corresponding pressure satisfies $p\in C^{2γ}_*(Ω)$ in the case $γ\in (0,\frac{1}{2}]$, where $C^{2γ}_*$ is the Hölder-Zygmund space, which coincides with the usual Hölder space for $γ<\frac12$. This result, together with our previous one in [11] covering the case $γ\in(\frac12,1)$, yields the full double regularity of the pressure on bounded and sufficiently regular domains. The interior regularity comes from the corresponding $C^{2γ}_*$ estimate for the pressure on the whole space $\mathbb{R}^d$, which in particular extends and improves the known double regularity results (in the absence of a boundary) in the borderline case $γ=\frac{1}{2}$. The boundary regularity features the use of local normal geodesic coordinates, pseudodifferential calculus and a fine Littlewood-Paley analysis of the modified equation in the new coordinate system. We also discuss the relation between different notions of weak solutions, a step which plays a major role in our approach.
description: Extended version published on IMRN. Section 2.1 and Section 6.1 have been added, some minor mistakes have been corrected after the referee reports
Improving the surface brightness-color relation for early-type stars using optical interferometry
Creators: name: Challouf, M.
name: Nardetto, N.
name: Mourard, D.
name: Graczyk, D.
name: Aroui, H.
name: Chesneau, O.
name: Delaa, O.
name: Pietrzyński, G.
name: Gieren, W.
name: Ligi, R.
name: Meilland, A.
name: Perraut, K.
name: Tallon-Bosc, I.
name: McAlister, H.
name: Brummelaar, T. ten
name: Sturmann, J.
name: Sturmann, L.
name: Turner, N.
name: Farrington, C.
name: Vargas, N.
name: Scott, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The aim of this work is to improve the SBC relation for early-type stars in the $-1 \leq V-K \leq 0$ color domain, using optical interferometry. Observations of eight B- and A-type stars were secured with the VEGA/CHARA instrument in the visible. The derived uniform disk angular diameters were converted into limb darkened angular diameters and included in a larger sample of 24 stars, already observed by interferometry, in order to derive a revised empirical relation for O, B, A spectral type stars with a V-K color index ranging from -1 to 0. We also took the opportunity to check the consistency of the SBC relation up to $V-K \simeq 4$ using 100 additional measurements. We determined the uniform disk angular diameter for the eight following stars: $γ$ Ori, $ζ$ Per, $8$ Cyg, $ι$ Her, $λ$ Aql, $ζ$ Peg, $γ$ Lyr, and $δ$ Cyg with V-K color ranging from -0.70 to 0.02 and typical precision of about $1.5\%$. Using our total sample of 132 stars with $V-K$ colors index ranging from about $-1$ to $4$, we provide a revised SBC relation. For late-type stars ($0 \leq V-K \leq 4$), the results are consistent with previous studies. For early-type stars ($-1 \leq V-K \leq 0$), our new VEGA/CHARA measurements combined with a careful selection of the stars (rejecting stars with environment or stars with a strong variability), allows us to reach an unprecedented precision of about 0.16 magnitude or $\simeq 7\%$ in terms of angular diameter.
description: 13 pages, 5 figures, accepted for publication in A&A
Bondi-Hoyle-Lyttleton accretion onto a rotating black hole with ultralight scalar hair
Creators: name: Cruz-Osorio, Alejandro
name: Rezzolla, Luciano
name: Lora-Clavijo, Fabio Duvan
name: Font, José Antonio
name: Herdeiro, Carlos
name: Radu, Eugen
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a numerical study of relativistic Bondi-Hoyle-Lyttleton (BHL) accretion onto an asymptotically flat black hole with synchronized hair. The hair is sourced by an ultralight, complex scalar field, minimally coupled to Einstein's gravity. Our simulations consider a supersonic flow parametrized by the asymptotic values of the fluid quantities and a sample of hairy black holes with different masses, angular momenta, and amount of scalar hair. For all models, steady-state BHL accretion solutions are attained that are characterized by the presence of a shock-cone and a stagnation point downstream. For the models of the sample with the largest component of scalar field, the shock-cone envelops fully the black hole, transitioning into a bow-shock, and the stagnation points move further away downstream. Analytical expressions for the mass accretion rates are obtained after fitting the numerical results, which can be used to analyze black-hole formation scenarios in the presence of ultralight scalar fields. The formation of a shock-cone leads to regions where sound waves can be trapped and resonant oscillations excited. We measure the frequencies of such quasi-periodic oscillations and point out a possible association with quasi-periodic oscillations in the X-ray light curve of Sgr~A* and microquasars.
description: 24 pages, 3 tables, 10 figures. Minor changes
ПСИХОЛОГО-ПЕДАГОГИЧЕСКИЕ АСПЕКТЫ ГОЛОСО-РЕЧЕВЫХ НАРУШЕНИЙ У ШКОЛЬНИКОВ
Creators: name: А.С. Чухров
name: М.Г. Чухрова
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: голос
речь
обучение в школе
школьная тревожность
воображение
часто болеющие дети

description: В статье представлен анализ взаимосвязи голосо-речевых нарушений у школьников, школьной тревожности и уровня общего здоровья, а также развития воображения как интегративной функции высшей нервной деятельности. С помощью цифровизации голосо-речевых параметров были получены объективные характеристики голоса, измерен уровень школьной тревожности и изучена медицинская карта более 200 школьников от 8 до 14 лет. Была выделена группа часто болеющих детей. Проведен корреляционный анализ полученных результатов. Показано, что в группе часто болеющих детей голосо-речевые характеристики являются неудовлетворительными. Также высокая школьная тревожность сопровождается нарушениями голоса и речи. Уровень развития воображения у детей с голосо-речевыми нарушениями также является неудовлетворительным. Полученные данные обосновывают необходимость своевременного выявления детей с голосо-речевыми нарушениями и проведения специально организованной коррекции.
Enhanced curvature perturbations from spherical domain walls nucleated during inflation
Creators: name: Zeng, Zhen-Min
name: Liu, Jing
name: Guo, Zong-Kuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate spherical domain walls~(DWs) nucleated via quantum tunneling in multifield inflationary models and curvature perturbations induced by the inhomogeneous distribution of those DWs. We consider the case that the Euclidean action $S_{E}$ of DWs changes with time during inflation so that most of DWs nucleate when $S_{E}$ reaches the minimum value and the radii of DWs are almost the same. When the Hubble horizon scale exceeds the DW radius after inflation, DWs begin to annihilate and release their energy into background radiation. Because of the random nature of the nucleation process, the statistics of DWs is of the Poisson type and the power spectrum of curvature perturbations has a characteristic slope ${\cal P}_{\cal R}(k)\propto k^{3}$. The amplitude of ${\cal P}_{\cal R}(k)$ depends on the tension and abundance of DWs at the annihilation time while the peak mode depends on the mean separation of DWs. We also numerically obtain the energy spectra of scalar-induced gravitational waves from predicted curvature perturbations which are expected to be observed in multiband gravitational-wave detectors.
description: 7 pages,2 figures, Received 31 January 2023 Accepted 18 August 2023
Achieving the Uniform Rate Region of General Multiple Access Channels by Polar Coding
Creators: name: Mahdavifar, Hessam
name: El-Khamy, Mostafa
name: Lee, Jungwon
name: Kang, Inyup
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the problem of polar coding for transmission over $m$-user multiple access channels. In the proposed scheme, all users encode their messages using a polar encoder, while a joint successive cancellation decoder is deployed at the receiver. The encoding is done separately across the users and is independent of the target achievable rate, in the sense that the encoder core is the regular Arıkan's polarization matrix. For the code construction, the positions of information bits and frozen bits for each of the users are decided jointly. This is done by treating the whole polar transformation across all the $m$ users as a single polar transformation with a certain base code. We prove that the covering radius of the dominant face of the uniform rate region is upper bounded by $r = \frac{(m-1)\sqrt{m}}{L}$, where $L$ represents the length of the base code. We then prove that the proposed polar coding scheme achieves the whole uniform rate region, with small enough resolution characterized by $r$, by changing the decoding order in the joint successive cancellation decoder. The encoding and decoding complexities are $O(N \log N)$, where $N$ is the code block length, and the asymptotic block error probability of $O(2^{-N^{0.5 - ε}})$ is guaranteed. Examples of achievable rates for the case of $3$-user multiple access channel are provided.
description: submitted to IEEE Transactions on Communications, July 9, 2014. arXiv admin note: substantial text overlap with arXiv:1307.2889