cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An examination of relationships between artifact classes and food resource remains at Deep Bay, DiSe 7
Creators: name: Monks, Gregory G.
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation examines the idea that ethnographically reported relationships between artifact classes and faunal food resource remains can be detected in an archaeological context. A detailed site report is presented for Deep Bay (DiSe 7), including analyses of the artifact and faunal assemblages, and quantitative techniques are employed to search for associations between faunal and artifact variables in this site. The results of four analyses are compared, and the recurring associations of variable pairs are interpreted in the light of ethnographic and ecological data. The various lines of evidence relevant to the most likely season of site occupation are also examined. It is concluded that some of the ethnographically reported food resource procurement patterns can successfully be detected in the archaeological record. Evidence is presented that suggests the existence of food resource procurement systems centered around herring, deer, sea mammal, and migratory waterfowl. The site was most likely occupied during the late winter and early spring, primarily for deer hunting and herring fishing, and secondarily for sea mammal and waterfowl hunting. The acquisition of molluscs is considered to be a given. This subsistence pattern appears to have varied little over the past 2000 years. It is also concluded that the same techniques could be used profitably for similar studies in the future.
НЕДОСТАТКИ В УПРАВЛЕНЧЕСКОЙ ДЕЯТЕЛЬНОСТИ КАК ОДНА ИЗ ПРИЧИН, СПОСОБСТВУЮЩИХ ПОСТУПЛЕНИЮ ЗАПРЕЩЕННЫХ ПРЕДМЕТОВ В ИСПРАВИТЕЛЬНЫЕ УЧРЕЖДЕНИЯ
Creators: name: Майстренко Г.А.
Publisher: name: Образование и право
Year: 2021
Subjects: управленческая деятельность
пенитенциарные учреждения
запрещенные предметы
криминогенная ситуация
осужденный
воспитательное воздействие.

description: Автором рассматриваются отдельные причины, способствующие поступлению к осужденным запрещенных предметов. Отмечается, что упущения в управленческой деятельности являются ключевым моментом, в некоторых случаях сводящим «на нет» усилия оперативных и режимных служб в борьбе с данным правонарушением. В статье приводятся наиболее типичные просчеты в управленческой деятельности, которые могут привести к пенитенциарным правонарушениям, делается вывод о необходимости организации систематической управленческой деятельности в исправительных учреждениях. В статье анализируется официальная статистическая отчетность, подкрепляющая позицию автора в части необходимости улучшения механизмов управленческой работы в пенитенциарных учреждениях.
Impact of RNA Melting on Hydrating Water Structure Mapped by Femtosecond 2D-IR Spectroscopy
Creators: name: Fingerhut, Benjamin P.
name: Kundu, Achintya
name: Schauss, Jakob
name: Elsaesser, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discern hydration geometries around the sugar-phosphate-backbone of an RNA double helix at the molecular level. RNA disordering upon melting is connected with a transition from ordered water structures towards local phosphate group hydration shells.
HI in Local Group Dwarf Galaxies and Stripping by the Galactic Halo
Creators: name: Grcevich, Jana
name: Putman, Mary E
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the HI content and environment of all of the Local Group dwarf galaxies (M_tot < 10^10 M_solar), including the numerous newly discovered satellites of the Milky Way and M31. All of the new dwarfs, with the exception of Leo T, have no detected HI. The majority of dwarf galaxies within ~270 kpc of the Milky Way or Andromeda are undetected in HI (< 10^5 M_solar for Milky Way dwarfs), while those further than ~270 kpc are predominantly detected with masses ~10^5 to 10^8 M_solar. Analytical ram-pressure arguments combined with velocities obtained via proper motion studies allow for an estimate of the halo density of the Milky Way at several distances. This halo density is constrained to be greater than 2-3 x 10^-4 cm^-3 out to distances of at least 70 kpc. This is broadly consistent with theoretical models of the diffuse gas in a Milky Way-like halo and is consistent with this component hosting a large fraction of a galaxy's baryons. Accounting for completeness in the dwarf galaxy count, gas-less dwarf galaxies could have provided at most 2.1 x 10^8 M_solar of HI gas to the Milky Way, which suggests that most of our Galaxy's star formation fuel does not come from accreted small satellites in the current era.
description: Accepted to ApJ, 17 pages, 4 tables, 6 figures, this version includes all corrections from errata
Fermi level equilibration at the metal-molecule interface in plasmonic systems
Creators: name: Stefancu, Andrei
name: Lee, Seunghoon
name: Zhu, Li
name: Liu, Min
name: Lucacel, Raluca Ciceo
name: Cortés, Emiliano
name: Leopold, Nicolae
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We highlight a new metal-molecule charge transfer process by tuning the Fermi energy of plasmonic silver nanoparticles (AgNPs) in-situ. The strong adsorption of halide ions upshifts the Fermi level of AgNPs by up to ~0.3 eV in the order: Cl-
НЕКОТОРЫЕ АСПЕКТЫ ВОЗДЕЙСТВИЯ ПРАВОВОЙ КУЛЬТУРЫ НА РАЗВИТИЕ И РЕАЛИЗАЦИЮ РОССИЙСКОГО КОНСТИТУЦИОНАЛИЗМА
Creators: name: Никаноров А.К.
name: Анисимов Н.Н.
Publisher: name: Образование и право
Year: 2021
Subjects: конституционализм
правовая культура
государство
Конституция
общество
эскалация
подчинение
законотворчество.

description: В данной статье исследуются понятия правовой культуры и конституционализма на предмет их взаимосвязанности. Исследование анализирует естественный подход к совершенствованию гражданского общества через законотворческую деятельность государства. Приводится взаимосвязь построения конституционализма с определенной консистенцией человеческого общества. На основе метода исторического анализа, а также метафизического разложения рассматривается состояние подчинения, видоизменение данного состояния и наиболее яркие причины эскалации социальной напряженности. Целью данного исследования является рассмотрение наиболее важного элемента демократического режима, а именно гуманно построенная законодательная база государства, по отношению к динамичной материи общественного сознания. Помимо ранее названных методов исследования, в рамках данного анализа использовался метод анализа и синтеза явлений, диалектический метод, прогностический метод, а также системно-функциональный метод научного исследования. В результате обоснована необходимость качественной проработки законотворческой деятельности по отношению к социальной напряженности общества. Делается уклон на то, что отношения подчинения в демократическом государстве носят характер неотъемлемого элемента, но только при определённых условиях. В этой связи важно отметить, что создание конституционно-правовых норм является сложным зависимым процессом, реализация которых затрудняется неэффективным использованием уже существующих основополагающих конституционных норм.
Square integrals of the logarithmic derivatives of Selberg's zeta functions in the critical strip
Creators: name: Hashimoto, Yasufumi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M36, 11F72

description: In our previous work (https://doi.org/10.1002/mana.202000268, Math. Nachr., 2021), we proposed an upper bound of the logarithmic derivative of Selberg's zeta function for the modular groups in the critical strip. The present paper studies the growth of its square integral for the modular group, co-compact arithmetic groups derived from indefinite quaternion algebras and their subgroups.
description: 9 pages
НЕКОТОРЫЕ АСПЕКТЫ ПРОФИЛАКТИКИ ЭКСТРЕМИЗМА
Creators: name: Машекуашева М.Х.
name: Макоева Е.Р.
name: Маздогоева З.З.
Publisher: name: Образование и право
Year: 2021
Subjects: экстремизм
экстремистская деятельность
профилактика
педагогика.

description: Введение. В данной статье авторы исследуют вопросы педагогической профилактики молодежного экстремизма, причины его возникновения и особенности. Теоретические основы. Методы. Молодежный экстремизм угрожает национально й безопасности Российской Федерации, к тому же характеризуется большой жестокостью. В настоящей статье авторы исследуют явление молодежного экстремизма и оптимальные педагогические способы его профилактики. Были применены два теоретических метода: анализ педагогической и психологической литературы; анализ опыта педагогики. Метод обобщения использовался для исследования и оценки. Научный метод моделирования позволил предложить необходимые организационно-методические условия педагогической профилактики. Применение системного подхода позволило сделать актуальные рекомендации. Результаты исследования. Требуется формирование стрессоустойчивой молодежи, определены воспитательные задачи. Заключение. Сделан вывод, что профилактика молодежного экстремизма должна стать главным приоритетом Российской Федерации.
НЕКОТОРЫЕ ВОПРОСЫ, ВОЗНИКАЮЩИЕ ПРИ РАССМОТРЕНИИ КОРПОРАТИВНЫХ СПОРОВ: АНАЛИЗ ПРАВОПРИМЕНИТЕЛЬНОЙ ДЕЯТЕЛЬНОСТИ
Creators: name: Панина С.А.
Publisher: name: Образование и право
Year: 2021
Subjects: корпоративный спор
общество с ограниченной ответственностью
участник
учредитель
исключение участников из общества
наследование доли в обществе
компетентность

description: Корпоративные правоотношения являются наиболее сложными и многочисленными в российской правоприменительной практике. В настоящее время существует большое количество споров, которые не нашли своего правового урегулирования. Указанное позволяет говорить о наличии ряда пробелов и коллизий в действующем законодательстве Российской Федерации. В настоящей статье будет приведен анализ судебной практики в области корпоративных правоотношений, выявлены споры, разрешение которых не нашло единой правовой позиции, предложены пути устранения выявленных пробелов и коллизий. Также будет дана оценка судебным актам, которые были приняты Верховным судом Российской Федерации, как основополагающим актам, регулирующим те или иные правовые отношения.
Darboux Covariance: A Hidden Symmetry of Perturbed Schwarzschild Black Holes
Creators: name: Lenzi, Michele
name: Sopuerta, Carlos F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Starting from the infinite set of possible master equations for the perturbations of Schwarzschild black holes, with master functions linear in the metric perturbations and their first-order derivatives, we show that of all them are connected via Darboux transformations. These transformations preserve physical quantities like the quasinormal mode frequencies and the infinite hierarchy of Korteweg-de Vries conserved quantities, revealing a new hidden symmetry in the description of the perturbations of Schwarzschild black holes: Darboux covariance.
description: 6 pages, revtex 4-2
On the Derivation of Weights from Incomplete Pairwise Comparisons Matrices via Spanning Trees with Crisp and Fuzzy Confidence Levels
Creators: name: Mazurek, Jiri
name: Kułakowski, Konrad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we propose a new method for the derivation of a priority vector from an incomplete pairwise comparisons (PC) matrix. We assume that each entry of a PC matrix provided by an expert is also evaluated in terms of the expert's confidence in a particular judgment. Then, from corresponding graph representations of a given PC matrix, all spanning trees are found. For each spanning tree, a unique priority vector is obtained with the weight corresponding to the confidence levels of entries that constitute this tree. At the end, the final priority vector is obtained through an aggregation of priority vectors achieved from all spanning trees. Confidence levels are modeled by real (crisp) numbers and triangular fuzzy numbers. Numerical examples and comparisons with other methods are also provided. Last, but not least, we introduce a new formula for an upper bound of the number of spanning trees, so that a decision maker gains knowledge (in advance) on how computationally demanding the proposed method is for a given PC matrix.
description: 25 pages, 7 figures
On Serre's conjecture for mod l Galois representations over totally real fields
Creators: name: Buzzard, Kevin
name: Diamond, Fred
name: Jarvis, Frazer
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In 1987 Serre conjectured that any mod l ("ell", not "1") two-dimensional irreducible odd representation of the absolute Galois group of the rationals came from a modular form in a precise way. We present a generalisation of this conjecture to 2-dimensional representations of the absolute Galois group of a totally real field where l is unramified. The hard work is in formulating an analogue of the "weight" part of Serre's conjecture. Serre furthermore asked whether his conjecture could be rephrased in terms of a "mod l Langlands philosophy". Using ideas of Emerton and Vigneras, we formulate a mod l local-global principle for the group D^*, where D is a quaternion algebra over a totally real field, split above l and at 0 or 1 infinite places, and show how it implies the conjecture.
description: Version 5: Our Shimura variety conventions differ from Emerton's (see footnote 4) and so (a) some chi's needed to be changed to chi^{-1}'s in section 4 and (b) our Eichler-Shimura relation needed fixing too (also in section 4).
Middleware for quality-based context distribution in mobile systems
Creators: name: Fanelli, Mario <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-INF/05 Sistemi di elaborazione delle informazioni

description: The continuous advancements and enhancements of wireless systems are enabling new compelling scenarios where mobile services can adapt according to the current execution context, represented by the computational resources available at the local device, current physical location, people in physical proximity, and so forth. Such services called context-aware require the timely delivery of all relevant information describing the current context, and that introduces several unsolved complexities, spanning from low-level context data transmission up to context data storage and replication into the mobile system. In addition, to ensure correct and scalable context provisioning, it is crucial to integrate and interoperate with different wireless technologies (WiFi, Bluetooth, etc.) and modes (infrastructure-based and ad-hoc), and to use decentralized solutions to store and replicate context data on mobile devices. These challenges call for novel middleware solutions, here called Context Data Distribution Infrastructures (CDDIs), capable of delivering relevant context data to mobile devices, while hiding all the issues introduced by data distribution in heterogeneous and large-scale mobile settings. This dissertation thoroughly analyzes CDDIs for mobile systems, with the main goal of achieving a holistic approach to the design of such type of middleware solutions. We discuss the main functions needed by context data distribution in large mobile systems, and we claim the precise definition and clean respect of quality-based contracts between context consumers and CDDI to reconfigure main middleware components at runtime. We present the design and the implementation of our proposals, both in simulation-based and in real-world scenarios, along with an extensive evaluation that confirms the technical soundness of proposed CDDI solutions. Finally, we consider three highly heterogeneous scenarios, namely disaster areas, smart campuses, and smart cities, to better remark the wide technical validity of our analysis and solutions under different network deployments and quality constraints.
НЕКОТОРЫЕ ВОПРОСЫ ПРЕДУПРЕЖДЕНИЯ ЭКСТРЕМИЗМА В ОБРАЗОВАТЕЛЬНОЙ СРЕДЕ
Creators: name: Машекуашева М.Х.
name: Маздогоева З.З.
Publisher: name: Образование и право
Year: 2021
Subjects: экстремизм
экстремистская деятельность
образование
педагогика.

description: Введение. В данной статье авторы обращают внимание на проблему антиэкстремистского воспитания подрастающего поколения с применением методов педагогической науки в системе российского образования. Теоретические основы. Методы. Требуется обучение молодежи конструктивным стратегиям преодоления трудных жизненных ситуаций, что, с нашей точки зрения, увеличит адаптивный и мотивационный потенциал молодого человека, а также позитивный социальный опыт. В настоящей статье авторы исследуют противодействие идеологии молодежного экстремизма педагогами. В основе данного исследования несколько базовых научных и педагогических методов. Универсальный научный метод моделирования является основой педагогического исследования, потому что он позволяет выявить детали преобразования социальных процессов, которые являются практическими векторами при создании педагогической модели. Метод обобщения использовался для исследования и оценки. Применение системного подхода позволило изучить содержание современного образования. Результаты исследования. На всем протяжении обучения студентов необходимо обучать их конструктивным поведенческим стратегиям преодоления трудных жизненных ситуаций, повышать их грамотность, а также дискредитировать экстремистскую идеологию и лидеров. Заключение. Сделан вывод, что профилактика противодействия идеологии экстремизма в образовательной среде скажется положительно.
Perfluoroalkylated substances in food matrices: development of mass spectrometry based analytical methods and preliminary monitoring
Creators: name: Barbarossa, Andrea <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: VET/04 Ispezione degli alimenti di origine animale

description: Perfluoroalkylated substances are a group of chemicals that have been largely employed during the last 60 years in several applications, widely spreading and accumulating in the environment due to their extreme resistance to degradation. As a consequence, they have been found also in various types of food as well as in drinking water, proving that they can easily reach humans through the diet. The available information concerning their adverse effects on health has recently increased the interest towards these contaminants and highlighted the importance of investigating all the potential sources of human exposure, among which diet was proved to be the most relevant. This need has been underlined by the European Union through Recommendation 2010/161/EU: in this document, Member States were called to monitor their presence of in food, producing accurate estimations of human exposure. The purpose of the research presented in this thesis, which is the result of a partnership between an Italian and a French laboratory, was to develop reliable tools for the analysis of these pollutants in food, to be used for generating data on potentially contaminated matrices. An efficient method based on liquid chromatography-mass spectrometry for the detection of 16 different perfluorinated compounds in milk has been validated in accordance with current European regulation guidelines (2002/657/EC) and is currently under evaluation for ISO 17025 accreditation. The proposed technique was applied to cow, powder and human breast milk samples from Italy and France to produce a preliminary monitoring on the presence of these contaminants. In accordance with the above mentioned European Recommendation, this project led also to the development of a promising technique for the quantification of some precursors of these substances in fish. This method showed extremely satisfying performances in terms of linearity and limits of detection, and will be useful for future surveys.
НОВАЯ ПАРАДИГМА И ТРЕНДЫ В РАЗВИТИИ СРЕДНЕГО ПРОФЕССИОНАЛЬНОГО И ВЫСШЕГО ОБРАЗОВАНИЯ В РОССИИ И ЗА РУБЕЖОМ
Creators: name: Шеркунов С.А.
name: Рыжов В.Б.
Publisher: name: Образование и право
Year: 2021
Subjects: профессиональное образование
Болонское соглашение
новая образовательная парадигма
SMART-университет
Римское коммюнике
академическая свобода
социальное измерение.

description: В статье представлена современная модель среднего профессионального и высшего образования, которая в соответствии с новой образовательной парадигмой основывается на принципах открытости, всеобъемлемости и инклюзивности, инновационности, устойчивого развития. Представлены институциональные структуры реализации новой образовательной парадигмы, в частности SMART-университеты.
Semiabelian varieties over separably closed fields, maximal divisible subgroups, and exact sequences
Creators: name: Benoist, Franck
name: Bouscaren, Elisabeth
name: Pillay, Anand
Publisher: name: arXiv
Year: 2009
Subjects: subject: Logic (math.LO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 03C60, 14G27

description: Given a separably closed field K of positive characteristic and finite degree of imperfection we study the # functor which takes a semiabelian variety G over K to the maximal divisible subgroup #G of G(K). We show that the # functor need not preserve exact sequences. The main result is an example where #G does not have "relative Morley rank", yielding a counterexample to a claim of Hrushovski. The methods involve studying preservation of exact sequences by the # functor as well as issues of descent. We also develop the notion of an iterative D-structure on a group scheme over an iterative Hasse field, as well as giving characteristic 0 versions of our results.
description: 55 pages In this version 3, some corrections and clarifications are made: in section 2.3 on relative Morley rank. Also in section 5.2 where more explanation is given of D-structures in positive characteristic. In an appendix we give a proof of the exactness of the functor taking a semiabelian variety to its universal vectorial extension
'A Distortion in the mirror of being': verso un modello liquido di personaggio. Da Nabokov alle sperimentazioni contemporanee in ambito slavo
'A Distortion in the mirror of being': towards a liquid model of character. From Nabokov to contemporary experimentations in the Slavic field
Creators: name: Marchesini, Irina <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: L-LIN/21 Slavistica

description: La tesi mira a ridefinire lo statuto del personaggio nell’ambito del self-conscious novel postmoderno, alla luce delle più recenti tendenze narratologiche, con particolare riferimento all’unnatural narratology. Per poter presentare un modello scientificamente valido si è fatto ricorso alla comparazione della produzione letteraria di due macro-aree: quella britannica e quella slava (Russia - Unione Sovietica -  e Polonia). Come figura di mediazione tra queste due culture si pone senza dubbio Vladimir V. Nabokov, cardine e personalità di spicco della ricerca. Tra le analisi testuali proposte sono stati presi in considerazione i seguenti autori: Julian Barnes, Vladimir Nabokov, Daniil Charms, Konstantin Vaginov, Andrej Bitov, Saša Sokolov, Bruno Schulz e Tadeusz Kantor.
description: The thesi aims to propose a new, flexible theoretical model of character capable to include an up-to-date mapping of the narrative strategies employed with this figure, thus redefining the notion. The adoption of an “unnatural” point of view enables us to concentrate “on the text’s otherness, on its monstrosity, on the role of chance and chaos” (Alber, 2002: 70). The choice of a comparative approach that focuses on British, Russian (Soviet) and Polish authors proves to be particularly effective in order to demonstrate the scientific validity of this new model. Textual analyses include the works of: Julian Barnes, Vladimir Nabokov, Daniil Charms, Konstantin Vaginov, Andrej Bitov, Saša Sokolov, Bruno Schulz and Tadeusz Kantor.
Partial symmetries of iterated plethysms
Creators: name: Gutiérrez, Álvaro
name: Rosas, Mercedes H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E10, 05E10

description: This work highlights the existence of partial symmetries in large families of iterated plethystic coefficients. The plethystic coefficients involved come from the expansion in the Schur basis of iterated plethysms of Schur functions indexed by one-row partitions. The partial symmetries are described in terms of an involution on partitions, the flip involution, that generalizes the ubiquitous $ω$ involution. Schur-positive symmetric functions possessing this partial symmetry are termed flip-symmetric. The operation of taking plethysm with $s_λ$ preserves flip-symmetry, provided that $λ$ is a partition of two. Explicit formulas for the iterated plethysms $s_2\circ s_b\circ s_a$ and $s_c\circ s_2\circ s_a$, with $a,$ $b,$ and $c$ $\ge$ $2$ allow us to show that these two families of iterated plethysms are flip-symmetric. The article concludes with some observations, remarks, and open questions on the unimodality and asymptotic normality of certain flip-symmetric sequences of iterated plethystic coefficients.
description: 21 pages, 8 figures
О ВАРИАТИВНЫХ ПОДХОДАХ К ФЕНОМЕНУ «КОРРУПЦИЯ»
Creators: name: Косьмин А.Д.
name: Косьмина Е.А.
name: Грудцына Л.Ю.
Publisher: name: Образование и право
Year: 2021
Subjects: коррупция
свойства коррупции
причины коррупции
модель экономики
инфляция
бедность
Россия.

description: В статье анализируется содержание двух документов, подписанных Президентом РФ, в которых указаны различные цели по мишени «коррупция» искоренение коррупции и противодействие коррупции. Это и послужило основанием для авторов рассмотрения природы и наиболее характерных свойств коррупции, ее глубинных причин, показателей и социально-экономических последствий реализации коррупционных проектов России. Предлагаются рекомендации для борьбы с такого рода социальными проявлениями в российском обществе.
Solving the Discrete Euler-Arnold Equations for the Generalized Rigid Body Motion
Creators: name: Cardoso, Joao R.
name: Miraldo, Pedro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Robotics (cs.RO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We propose three iterative methods for solving the Moser-Veselov equation, which arises in the discretization of the Euler-Arnold differential equations governing the motion of a generalized rigid body. We start by formulating the problem as an optimization problem with orthogonal constraints and proving that the objective function is convex. Then, using techniques from optimization on Riemannian manifolds, the three feasible algorithms are designed. The first one splits the orthogonal constraints using the Bregman method, whereas the other two methods are of the steepest-descent type. The second method uses the Cayley-transform to preserve the constraints and a Barzilai-Borwein step size, while the third one involves geodesics, with the step size computed by Armijo's rule. Finally, a set of numerical experiments are carried out to compare the performance of the proposed algorithms, suggesting that the first algorithm has the best performance in terms of accuracy and number of iterations. An essential advantage of these iterative methods is that they work even when the conditions for applicability of the direct methods available in the literature are not satisfied.
ОРГАНИЗАЦИОННО-ПРАВОВЫЕ ПРОБЛЕМЫ РЕФОРМИРОВАНИЯ СОВЕТСКОЙ МИЛИЦИИ В 1960-Х ГГ.
Creators: name: Цечоев В.К.
Publisher: name: Образование и право
Year: 2021
Subjects: милиция
СССР
власть
право
советский режим
общество
государственные институты.

description: В настоящей статье анализируется реформа советской милиции, проведенная Н.С. Хрущевым Особое внимание автор уделяет организационно-правовые основы советской милиции.
Sorting improves word-aligned bitmap indexes
Creators: name: Lemire, Daniel
name: Kaser, Owen
name: Aouiche, Kamel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Bitmap indexes must be compressed to reduce input/output costs and minimize CPU usage. To accelerate logical operations (AND, OR, XOR) over bitmaps, we use techniques based on run-length encoding (RLE), such as Word-Aligned Hybrid (WAH) compression. These techniques are sensitive to the order of the rows: a simple lexicographical sort can divide the index size by 9 and make indexes several times faster. We investigate row-reordering heuristics. Simply permuting the columns of the table can increase the sorting efficiency by 40%. Secondary contributions include efficient algorithms to construct and aggregate bitmaps. The effect of word length is also reviewed by constructing 16-bit, 32-bit and 64-bit indexes. Using 64-bit CPUs, we find that 64-bit indexes are slightly faster than 32-bit indexes despite being nearly twice as large.
A Machine Learning Approach to Integral Field Unit Spectroscopy Observations: III. Disentangling Multiple Components in Hii regions
Creators: name: Rhea, Carter Lee
name: Rousseau-Nepton, Laurie
name: Prunet, Simon
name: Hlavacek-Larrondo, Julie
name: Martin, R. Pierre
name: Grasha, Kathryn
name: Asari, Natalia Vale
name: Bégin, Théophile
name: Vigneron, Benjamin
name: Prasow-Émond, Myriam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In the first two papers of this series (Rhea et al. 2020; Rhea et al. 2021), we demonstrated the dynamism of machine learning applied to optical spectral analysis by using neural networks to extract kinematic parameters and emission-line ratios directly from the spectra observed by the SITELLE instrument located at the Canada-France-Hawai'i Telescope. In this third installment, we develop a framework using a convolutional neural network trained on synthetic spectra to determine the number of line-of-sight components present in the SN3 filter (656--683nm) spectral range of SITELLE. We compare this methodology to standard practice using Bayesian Inference. Our results demonstrate that a neural network approach returns more accurate results and uses less computational resources over a range of spectral resolutions. Furthermore, we apply the network to SITELLE observations of the merging galaxy system NGC2207/IC2163. We find that the closest interacting sector and the central regions of the galaxies are best characterized by two line-of-sight components while the outskirts and spiral arms are well-constrained by a single component. Determining the number of resolvable components is crucial in disentangling different galactic components in merging systems and properly extracting their respective kinematics.
description: Accepted in ApJ; Resources can be found at https://github.com/sitelle-signals/Pamplemousse
Understanding Quaternions and the Dirac Belt Trick
Creators: name: Staley, Mark
Publisher: name: arXiv
Year: 2010
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The Dirac belt trick is often employed in physics classrooms to show that a $2π$ rotation is not topologically equivalent to the absence of rotation whereas a $4π$ rotation is, mirroring a key property of quaternions and their isomorphic cousins, spinors. The belt trick can leave the student wondering if a real understanding of quaternions and spinors has been achieved, or if the trick is just an amusing analogy. The goal of this paper is to demystify the belt trick and to show that it implies an underlying \emph{four-dimensional} parameter space for rotations that is simply connected. An investigation into the geometry of this four-dimensional space leads directly to the system of quaternions, and to an interpretation of three-dimensional vectors as the generators of rotations in this larger four-dimensional world. The paper also shows why quaternions are the natural extension of complex numbers to four dimensions. The level of the paper is suitable for undergraduate students of physics.
description: 19 pages, 4 figures
Cobalt in strontium titanate as a new off-center magnetic impurity
Creators: name: Sluchinskaya, I. A.
name: Lebedev, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The local structure and oxidation state of the cobalt impurity in SrTiO$_3$ is studied by X-ray absorption fine structure (XAFS) spectroscopy. The synthesis conditions, under which cobalt predominantly (up to 76%) substitutes the atoms at the $A$ site of the perovskite structure, is found for SrTiO$_3$(Co) samples. By varying the synthesis conditions, it is possible to appreciably change the ratio between the concentrations of cobalt atoms incorporated into the $A$ and $B$ sites. It is established that the oxidation state of cobalt is +2 at the $A$ site and +3 at the $B$ site. It is revealed that the Co impurity at the $A$ site is off-center, and its displacement from the lattice site is $\sim$1.0 Å. First-principles calculations show that an isolated Co$^{3+}$ ion at the $B$ site is diamagnetic, whereas the Co$^{2+}$ ion at the $A$ site is in a high-spin state ($S = 3/2$).
description: 7 pages, 4 figures, 3 tables. arXiv admin note: text overlap with arXiv:1912.10711
The role of MYCN-mediated transcriptional repression in neuronal physiopathology
Creators: name: Valli, Emanuele <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: BIO/18 Genetica

description: MYC is a transcription factor that can activate transcription of several targets by direct binding to their promoters at specific DNA sequences (E-box).
Recent findings have also shown that it can exert its biological role by repressing transcription of other set of genes. C-MYC can mediate repression on its target genes through interaction with factors bound to promoter regions but not through direct recognition of typical E-Boxes.
In this thesis, we investigated whether MYCN can also repress gene transcription and how this is mechanistically achieved. 
Moreover, expression of TRKA, P75NTR and ABCC3 is attenuated in aggressive MYCN-amplified tumors, suggesting a causal link between elevated MYCN activity and transcriptional repression of these three genes.
We found that MYCN is physically associated with gene promoters in vivo in proximity of the transcriptional start sites and this association requires interactions with SP1 and/or MIZ-1.
Furthermore, we show that this interaction could interfere with SP1 and MIZ-1 activation functions by recruiting co-repressors such as DNMT3a or HDACs.
Studies in vitro suggest that MYCN interacts through distinct domains with SP1, MIZ-1 and HDAC1 supporting the idea that MYCN may form different complexes by interacting with different proteins.
Re-expression of endogenous TRKA and P75NTR with exposure to the TSA sensitizes neuroblastoma to NGF-mediated apoptosis, whereas ectopic expression of ABCC3 decreases cell motility without interfering with growth.
Finally, using shRNA whole genome library, we dissected the P75NTR repression trying to identify novel factors inside and/or outside MYCN complex for future therapeutic approaches.
Overall, our results support a model in which MYCN can repress gene transcription by direct interaction with SP1 and/or MIZ-1, and provide further lines of evidence on the importance of transcriptional repression induced by Myc in tumor biology.
An analysis of the nucleon spectrum from lattice partially-quenched QCD
Creators: name: Armour, W.
name: Allton, C. R.
name: Leinweber, D. B.
name: Thomas, A. W.
name: Young, R. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The chiral extrapolation of the nucleon mass, M_n, is investigated using data coming from 2-flavour partially-quenched lattice simulations. A large sample of lattice results from the CP-PACS Collaboration is analysed using the leading one-loop corrections, with explicit corrections for finite lattice spacing artifacts. The extrapolation is studied using finite range regularised chiral perturbation theory. The analysis also provides a quantitative estimate of the leading finite volume corrections. It is found that the discretisation, finite-volume and partial quenching effects can all be very well described in this framework, producing an extrapolated value of M_n in agreement with experiment. Furthermore, determinations of the low energy constants of the nucleon mass's chiral expansion are in agreement with previous methods, but with significantly reduced errors. This procedure is also compared with extrapolations based on polynomial forms, where the results are less encouraging.
description: Now includes calculation of low energy constants of nucleon mass chiral extrapolation. 32 pages, 10 figures. Version accepted for publication.
Gradient estimates for the subelliptic heat kernel on H-type groups
Creators: name: Eldredge, Nathaniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35H10, 53C17

description: We prove the following gradient inequality for the subelliptic heat kernel on nilpotent Lie groups $G$ of H-type: $$|\nabla P_t f| \le K P_t(|\nabla f|)$$ where $P_t$ is the heat semigroup corresponding to the sublaplacian on $G$, $\nabla$ is the subelliptic gradient, and $K$ is a constant. This extends a result of H.-Q. Li for the Heisenberg group. The proof is based on pointwise heat kernel estimates, and follows an approach used by Bakry, Baudoin, Bonnefont, and Chafaï.
description: 23 pages; updated with peer-review revisions
ОСНОВНЫЕ ИЗМЕНЕНИЯ НОВОЙ РЕДАКЦИИ ИНКОТЕРМС 2020
Creators: name: Родыгина Н.Ю.
name: Обуховская Л.А.
name: Дергачёв А.А.
name: Мусихин А.А.
Publisher: name: Образование и право
Year: 2021
Subjects: ИНКОТЕРМС 2020
внешняя торговля
международные экономические отношения
регионализация
международная поставка грузов.

description: Актуальность исследования вызвана активно развивающимся процессам глобализации и интеграции стран в условиях постковидной экономики и активным внедрением обновленных торговых обычаев Инкотермс 2020, учитывающим актуальные требования коммерческой практики. Цель: определить основные изменения, которые имели место в редакции Инкотермс 2020 г., а также причины этих изменений. Методология исследования — диалектический анализ, деконструкция. Авторы приходят к выводу, что потребность в изменении терминов Инкотермс в 2020 была вызвана необходимостью устранения тех затруднений, которые возникали на практике при использовании терминов Инкотермс 2010.
3D Brownian Diffusion of Submicron-Sized Particle Clusters
Creators: name: Hoffmann, Martin
name: Wagner, Claudia S.
name: Harnau, Ludger
name: Wittemann, Alexander
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report on the translation and rotation of particle clusters made through the combination of spherical building blocks. These clusters present ideal model systems to study the motion of objects with complex shape. Because they could be separated into fractions of well-defined configurations on a sufficient scale and their overall dimensions were below 300 nm, the translational and rotational diffusion coefficients of particle duplets, triplets and tetrahedrons could be determined by a combination of polarized dynamic light scattering (DLS) and depolarized dynamic light scattering (DDLS). The use of colloidal clusters for DDLS experiments overcomes the limitation of earlier experiments on the diffusion of complex objects near surfaces because the true 3D diffusion can be studied. When the exact geometry of the complex assemblies is known, different hydrodynamic models for calculating the diffusion coefficient for objects with complex shapes could be applied. Because hydrodynamic friction must be restricted to the cluster surface the so-called shell model, in which the surface is represented as a shell of small friction elements, was most suitable to describe the dynamics. A quantitative comparison of the predictions from theoretical modeling with the results obtained by DDLS showed an excellent agreement between experiment and theory.
Expansion of the propagation of chaos for Bird and Nanbu systems
Creators: name: Rubenthaler, Sylvain
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: The Bird and Nanbu systems are particle systems used to approximate the solution of the mollied Boltzmann equation. In particular, they have the propagation of chaos property. Following [GM94, GM97, GM99], we use coupling techniques and results on branching processes to write an expansion of the error in the propagation of chaos in terms of the number of particles, for slightly more general systems than the ones cited above. This result leads to the proof of the a.s convergence and the centrallimit theorem for these systems. In particular, we have a central-limit theorem for the empirical measure of the system under less assumptions then in [M{é}l98]. As in [GM94, GM97, GM99], these results apply to the trajectories of particles on an interval [0; T].
Gravitational reheating
Creators: name: Haque, Md Riajul
name: Maity, Debaprasad
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Our present understanding of the reheating phase is incomplete due to a lack of observations. Apart from its cosmological implications, the reheating should play a vital role in particle physics and inflation model building. Conventionally reheating dynamics are modeled by invoking arbitrary coupling among the inflaton and daughter fields. Such an approach lacks robust cosmological predictions due to its arbitrary couplings and is difficult to verify through observation. In this paper, we propose a minimal reheating scenario where the inflaton is coupled with all the daughter fields only gravitationally. Besides being successful in reheating the Universe, the scenario offers a strong cosmological prediction of the primordial gravitational wave spectrum and discards a large number of possible models of dark matter and inflation that are otherwise consistent with Planck.
description: 7 pages, 6 figures; v3 matches the published version in PRD
Detoxification of bleached kraft mill effluents by foam separation
Creators: name: Ng, Kong Seng
Publisher: name: University of British Columbia
Year: 2010

description: Foam separation has been successfully developed on a 4-1 laboratory column, an 80-1 field column installation and a 6000 gal pilot plant trough type system as a novel process for detoxifying bleached kraft mill effluents. Toxic surface active materials such as resin and unsaturated fatty acids collect at the gas-liquid interface of rising air bubbles and concentrate in the foam. The highly toxic collapsed foam represents 1-2% by volume of the influent and is subsequently detoxified by biological treatment. Process parameters controlling detoxification efficiency are pH, gas-liquid interfacial area, initial toxicity level and mode of operation. The gas-liquid interfacial area and pH are of utmost importance. For a typical effluent with MST of 3-4 hr, approximately 20-2 30 m²/l of interfacial area given to an effluent at pH > 7.0 are required for detoxification. Foam separation is universally applicable and reliable for detoxifying kraft whole mill effluent. Over 80% of 205 samples from 10 Canadian mills were detoxified. A 1 gal/min, one and two stage continuous flow systems detoxified over 90% of samples at pH 8 and 1-2 hr retention time over 80 days of operation period. Study of detoxification mechanism indicated that foam fractionation accounts for 77.5% of detoxification, volatization for 5.4% and unidentified mechanisms for 17.1%. Depending on the mode of operation, up to 5% of effluent volume was discharged as foam. The foam volume could be reduced to < 2% by increasing foam retention time and enhancing internal reflux. Collapsed foam was readily detoxified by a biodisc or aerated lagoon process. In addition to detoxification, foam separation removed 20-60% of suspended solids, 66% resin acids, 12% B0D5 (10% TOC), 8% color and 80% foaming tendency. Suspended solids removal could be increased to 88% if an expensive dissolved air system were used for bubble generation. Commercially available equipment for foam generation and foam breaking was reviewed. Jet aerators and turbine systems were assessed as most suitable for commercial application. Pilot plant evaluation of this equipment indicated that reliable and consistent operation could be obtained. The results were used to establish empirical formulae for use in process scale up. During a 4 month continuous flow study, approximately 5-7 m²/l of gas-liquid interfacial area was provided to detoxify 80-100 gal/min of mill A effluent with MST of 6-10 hr. The detoxification success rate of a large number of samples increased from 50 to 86 and to 100% as the operation changed from 1 to 2 to 3 stages. The foam produced by the pilot plant was collapsed by a 12" diameter turbine at 100% efficiency all the time. Costs of foam separation were examined for a projected 3 stage foam separation process, treating 25 M gal/day of bleached kraft whole mill effluent. Capital costs for pH control, foam generation, foam breaking and foam treatment were estimated at $2.26 M. Operating costs were estimated at $2.35/ton of pulp.
Stationary and convergent strategies in Choquet games
Creators: name: Dorais, François G.
name: Mummert, Carl
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Topology (math.GN)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 90D42 (Primary), 54D20 (Primary), 06B35 (Secondary), 06A10 (Secondary)

description: If NONEMPTY has a winning strategy against EMPTY in the Choquet game on a space, the space is said to be a Choquet space. Such a winning strategy allows NONEMPTY to consider the entire finite history of previous moves before making each new move; a stationary strategy only permits NONEMPTY to consider the previous move by EMPTY. We show that NONEMPTY has a stationary winning strategy for every second countable T1 Choquet space. More generally, NONEMPTY has a stationary winning strategy for any T1 Choquet space with an open-finite basis. We also study convergent strategies for the Choquet game, proving the following results. (1) A T1 space X is the open image of a complete metric space if and only if NONEMPTY has a convergent winning strategy in the Choquet game on X. (2) A T1 space X is the compact open image of a metric space if and only if X is metacompact and NONEMPTY has a stationary convergent strategy in the Choquet game on X. (3) A T1 space X is the compact open image of a complete metric space if and only if X is metacompact and NONEMPTY has a stationary convergent winning strategy in the Choquet game on X.
description: 24 pages