cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The problem of camouflaging via mirror reflections
Creators: name: Plakhov, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Metric Geometry (math.MG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 37D50

description: This work is related to billiards and their applications in geometric optics. It is known that perfectly invisible bodies with mirror surface do not exist. It is natural to search for bodies that are, in a sense, close to invisible. We introduce a {\it visibility index} of a body measuring the mean angle of deviation of incident light rays, and derive a lower estimate to this index. This estimate is a function of the body's volume and of the minimal radius of a ball containing the body. This result is far from being final and opens a possibility for further research.
description: 16 pages
РЕЗУЛЬТАТЫ ИЗУЧЕНИЯ ЭПОНИМНОГО ПАМЯТНИКА СРОСТКИ-I НА АЛТАЕ: ВОЗВРАЩЕНИЕ К ИСТОКАМ И НОВЫЕ МАТЕРИАЛЫ
Creators: name: ГОРБУНОВ ВАДИМ ВЛАДИМИРОВИЧ
name: ТИШКИН АЛЕКСЕЙ АЛЕКСЕЕВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: АЛТАЙ
РАНЕЕ СРЕДНЕВЕКОВЬЕ
СРОСТКИ-I
АРХЕОЛОГИЧЕСКИЕ РАСКОПКИ
КУРГАН
СРОСТКИНСКАЯ КУЛЬТУРА
ALTAI
EARLY MIDDLE AGES
SROSTKI-I
ARCHAEOLOGICAL EXCAVATIONS
BARROW
SROSTKINSKAYA CULTURE

description: Курганный могильник Сростки-I один из крупных раннесредневековых некрополей на юге Западной Сибири. Его исследование было начато в 1925 и 1930 гг. краеведом М.Д. Копытовым и археологами М.Н. Комаровой и С.М. Сергеевым, но во многом эти работы носили незавершенный характер. Между тем материалы этого памятника, давшего название одноименной культуре, до сих пор сохраняют свою актуальность для ее изучения. Важность получения более полной информации о погребально-поминальном комплексе обусловлена продолжением раскопок в 2012-2014 и 2016 гг. За это время были полностью исследованы шесть курганов, содержавших 15 могил. Получены новые данные о конструкции рвов вокруг курганов, о расположении могил в ряд, о наличии столбов в их «изголовье», о проведении поминальной тризны возле могил и у насыпи курганов, о сопроводительных и отдельных захоронениях лошадей, об устройстве сложносоставных луков. Найденный инвентарь подтвердил датировку памятника второй половиной IX первой половиной X в. По выявленным деталям обряда исследованные курганы полностью вписываются в погребальные каноны, выявленные в других памятниках сросткинской культуры.
Hierarchy of the low-lying excitations for the $(2+1)$-dimensional $q=3$ Potts model in the ordered phase
Creators: name: Nishiyama, Yoshihiro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The $(2+1)$-dimensional $q=3$ Potts model was simulated with the exact diagonalization method. In the ordered phase, the elementary excitations (magnons) are attractive, forming a series of bound states in the low-energy spectrum. We investigate the low-lying spectrum through a dynamical susceptibility, which is readily tractable with the exact diagonalization method via the continued-fraction expansion. As a result, we estimate the series of (scaled) mass gaps, $m_{2,3,4}/m_1$ ($m_1$: single-magnon mass), in proximity to the transition point.
"ЭЛИТНЫЕ" КУРГАНЫ СРОСТКИНСКОЙ КУЛЬТУРЫ РУБЕЖА I/II ТЫС. Н. Э. НА ПРИОБСКОМ ПЛАТО
Creators: name: ГОРБУНОВ ВАДИМ ВЛАДИМИРОВИЧ
name: ТИШКИН АЛЕКСЕЙ АЛЕКСЕЕВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: ВЕРХНЕЕ ПРИОБЬЕ
ПРИОБСКОЕ ПЛАТО
РАНЕЕ СРЕДНЕВЕКОВЬЕ
КУРГАН
СРОСТКИНСКАЯ КУЛЬТУРА
ПРЕСТИЖНЫЕ ИЗДЕЛИЯ
UPPER OB REGION
PRIOBSKOE PLATEAU
EARLIER MIDDLE AGES
BARROW
SROSTKINSKAYA CULTURE
PRESTIGIOUS ITEMS

description: В конце 1990-х начале 2000-х гг. экспедициями Алтайского государственного университета проводились планомерные исследования памятников сросткинской культуры на Приобском плато (левобережье Оби). В результате были открыты и полностью изучены девять новых погребальных комплексов раннего средневековья, содержавших 32 погребения. Особое значение среди них представляют крупные (до 30 м в диаметре) земляные курганы, обнесенные рвами, на памятниках Грань, Поповская Дача и Филин-I. В центре этих объектов находились большие ямы с захоронениями людей и лошадей. Найденный инвентарь, несмотря на ограбление, представлен большим числом предметов материальной культуры, среди которых такие престижные изделия, как мечи, копья, металлическая посуда, украшения с использованием золота и серебра. Исследованные курганы сооружались в течение второй половины X первой четверти XI в. На этот период приходится расцвет сросткинской культуры, что выразилось в расширении ее ареала за счет северных и восточных земель. Видимо, открытые на Приобском плато «элитные» погребальные комплексы маркируют собой социально-политический центр сросткинского объединения. Изучение результатов раскопок крупных погребальных объектов в Верхнем Приобье обеспечит информацией дальнейшие этнокультурные реконструкции.
Chiral magnetic effect in isobaric collisions
Creators: name: Huang, Xu-Guang
name: Deng, Wei-Tian
name: Ma, Guo-Liang
name: Wang, Gang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We give a numerical simulation of the generation of the magnetic field and the charge-separation signal due to the chiral magnetic effect (CME) --- the induction of an electric current by the magnetic field in a parity-odd matter --- in the collisions of isobaric nuclei, $^{96}_{44}$Ru + $^{96}_{44}$Ru and $^{96}_{40}$Zr + $^{96}_{40}$Zr, at $\sqrt{s_{\rm NN}}=200$ GeV. We show that such collisions provide an ideal tool to disentangle the CME signal from the possible elliptic-flow driven background effects. We also discuss some other effects that can be tested by using the isobaric collisions.
description: Proceedings of XXVIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2017)
Liouville's theorem and comparison results for solutions of degenerate elliptic equations in exterior domains
Creators: name: Bonorino, Leonardo Prange
name: Silva, Andre Rodrigues
name: Zingano, Paulo Ricardo de Avila
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J15, 35J62, 35J70, 35J75, 35J92

description: A version of Liouville's theorem is proved for solutions of some degenerate elliptic equations defined in $\mathbb{R}^n\backslash K$, where $K$ is a compact set, provided the structure of this equation and the dimension $n$ are related. This result is a correction of a previous one established by Serrin, since some additional hypotheses are necessary. Theoretical and numerical examples are given. Furthermore, a comparison result and the uniqueness of solution are obtained for such equations in exterior domains.
description: 2 figures
ХРОНОЛОГИЯ И ПЕРИОДИЗАЦИЯ МОГИЛЬНИКА УЕЛГИ
Creators: name: ГРУДОЧКО ИВАН ВАЛЕРЬЕВИЧ
name: ГАЗИЗОВА СУФИЯ РИНАТОВНА
name: ПАРУНИН АЛЕКСЕЙ ВЛАДИМИРОВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: АРХЕОЛОГИЯ
СРЕДНЕВЕКОВЬЕ
БИЛЯРСКОЕ ГОРОДИЩЕ
ПОЛИВНАЯ КЕРАМИКА
ХИМИЧЕСКИЙ АНАЛИЗ
SOUTH URALS
MIDDLE AGE
NOMADS
CHRONOLOGY
BELT DECORATION

description: В работе приводятся результаты изучения глазури и керамического теста на предмет рецептуры. Проведена корреляция между выявленными химическими характеристиками глазури и керамического теста и стратиграфической позицией археологических находок в напластованиях и объектах Билярского городища из раскопа XLIV. Фактически авторами проведено второе, с 1986 года, исследование химического состава монохромной поливной посуды, происхождение которой связывается исследователями с местным керамическим производством средневекового Биляра.
Us v. them: the construction of fan authority in the online defence of Batman v Superman : Dawn of justice
Creators: name: Soegito, Anthony
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: This thesis explores how fans of the DC Extended Universe (DCEU) film franchise construct their critical authority online in response to the negative critical reaction to 2016 DC Comics/Warner Bros. film Batman v. Superman : Dawn of Justice (dir. Zack Snyder). By observing public Facebook fan pages this thesis argues that DCEU fans construct their authority by defining themselves against and through three ‘others’ : official criticism, rival fans and the mainstream. Focusing on the twenty-­four months surrounding the release, the research deploys discourse analysis to investigate online fan responses, including moderator posts and comment sections. This study will also analyse other fan responses such as Internet memes; their visual rhetoric will be appraised through a modal analysis. While the current trend of comic book movies has been explored academically, this particular subset of fans remains underanalysed. What is at stake for DCEU fans is the respect of popular culture and social media at large, their reputation damaged by the film’s critical failure.This thesis explores how fans’ sense of self and value is part of what they consume, and how media technologies have expanded these fan practices, allowing them to claim authority over and ownership of Dawn of Justice.
МОРФОЛОГИЧЕСКИЕ ПРИЗНАКИ, ХРОНОЛОГИЧЕСКИЕ И ГЕОГРАФИЧЕСКИЕ ГРАНИЦЫ MAGNA HUNGARIA В ВОСТОЧНОЙ ЕВРОПЕ
Creators: name: ИВАНОВ ВЛАДИМИР АЛЕКСАНДРОВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: MAGNA HUNGARIA
ВЕНГРЫ
КУШНАРЕНКОВСКАЯ
КАРАЯКУПОВСКАЯ
ЛОМОВАТОВСКАЯ
НЕВОЛИНСКАЯ ПОЛОМСКАЯ
ЧИЯЛИКСКАЯ КУЛЬТУРЫ
HUNGARIANS
KUSHNARENKOVO
KARAYAKUPOVO
LOMOVATOVO
NEVOLINSK
POLOMSK
CHIYALIK CULTURES

description: Археологическая культура угров-мадьяр (венгров) во время их пребывания на Урале хотя и менялась во времени, но сохраняла свою этническую семантику. Поэтому проблему уральской прародины мадьяр-венгров (Magna Hungaria) следует решать методами процессуальной археологии. С их помощью можно очертить круг археологических памятников, которые обозначают хронологические, географические и морфологические границы Magna Hungaria в регионе. В трактовке современных исследователей они становятся все более расплывчатыми и неопределенными и простираются от Тобола до Волги и от Сылвы до Самарской Луки. Это придает самой идее местонахождения древней венгерской родины на Урале гротескные черты, поскольку получается, что древние мадьяры-венгры «были везде». Имеющиеся археологические источники, рассмотренные в контексте позитивистско-процессуальной археологии, показывают, что с Magna Hungaria, как этногеографическим понятием, может ассоциироваться чияликская археологическая культура, генетически восходящая к археологическим культурам Предуралья и Прикамья второй половины I тыс. н.э.
ГУННЫ НА АЛТАЕ: МАРКЕРЫ И ПОСЛЕДСТВИЯ
Creators: name: КАЗАКОВ АЛЕКСАНДР АЛЬБЕРТОВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: АЛТАЙ
ЗАПАДНАЯ СИБИРЬ
ГУННЫ
КУЛЬТУРА
ПОЛИХРОМ
ИСКУССТВЕННАЯ ДЕФОРМАЦИЯ
ПАМЯТНИК
АНАЛИЗ
ПРИЗНАК
ALTAI
WESTERN SIBERIA
HUNS
CULTURE
POLYCHROME
ARTIFICIAL DEFORMATION
MONUMENT
ANALYSIS
FEATURES

description: На основании анализа новых материалов, соотносимых с гуннами, значительно сдвинута на восток граница гуннского влияния. Находки изделий полихромного стиля, гуннских котлов и погребений с кольцевой лобно-затылочной искусственной деформацией черепов в более чем 17 пунктах юга Западной Сибири, из которых около половины локализованы на территории Алтайского края, позволяют достаточно уверенно включить эти территории в регион гуннского влияния. Определены признаки, позволяющие выделить памятники, принадлежащие как собственно гуннам, так и представителям местного населения, в которых встречаются элементы гуннской материальной культуры. Кратко охарактеризованы последствия взаимодействия аборигенного населения с гуннами, приведшего к формированию новой археологической культуры (одинцовской), изменившей культурный облик крупного региона.
A distribution formula for Kashio's $p$-adic log-gamma function
Creators: name: Finat, Eugenio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11S80 (30G06)

description: We study a special case of Kashio's $p$-adic $\logΓ$-function, that we call ${\mathrm{Log}}Γ_{\mathit{p}}$, which combines these of Morita and Diamond. It agrees with each of these on large parts of its domain and has the advantage of being a locally analytic function. We prove a distribution formula for ${\mathrm{Log}}Γ_{\mathit{p}}$ which generalizes and links the known distribution formulas for Diamond's and Morita's functions.
description: 15 pages
Creating 3, 4, 6 and 10-dimensional spacetime from W3 symmetry
Creators: name: Ambjorn, J.
name: Watabiki, Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe a model where breaking of W3 symmetry will lead to the emergence of time and subsequently of space. Surprisingly the simplest such models which lead to higher dimensional spacetimes are based on the four "magical" Jordan algebras of 3x3 Hermitian matrices with real, complex, quaternion and octonion entries, respectively. The simplest symmetry breaking leads to universes with spacetime dimensions 3, 4, 6, and 10.
Silicate Dust in Active Galactic Nuclei
Creators: name: Xie, Yanxia
name: Li, Aigen
name: Hao, Lei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The unification theory of active galactic nuclei (AGNs) hypothesizes that all AGNs are surrounded by an anisotropic dust torus and are essentially the same objects but viewed from different angles. However, little is known about the dust which plays a central role in the unification theory. There are suggestions that the AGN dust extinction law appreciably differs from that of the Galaxy. Also, the silicate emission features observed in type 1 AGNs appear anomalous (i.e., their peak wavelengths and widths differ considerably from that of the Galaxy). In this work, we explore the dust properties of 147 AGNs of various types at redshifts z<0.5, with special attention paid to 93 AGNs which exhibit the 9.7 and 18 $μ$m silicate emission features. We model their silicate emission spectra obtained with the Infrared Spectrograph aboard the Spitzer Space Telescope. We find that 60/93 of the observed spectra can be well explained with "astronomical silicate", while the remaining sources favor amorphous olivine or pyroxene. Most notably, all sources require the dust to be $μ$m-sized (with a typical size of ~1.5$\pm$0.1 $μ$m), much larger than sub-$μ$m-sized Galactic interstellar grains, implying a flat or "gray" extinction law for AGNs. We also find that, while the 9.7 $μ$m emission feature arises predominantly from warm silicate dust of temperature T~270 K, the ~5--8 $μ$m continuum emission is mostly from carbon dust of T~640 K. Finally, the correlations between the dust properties (e.g., mass, temperature) and the AGN properties (e.g., luminosity, black hole mass) have also been investigated.
description: 68 pages, 24 figures, 6 tables; accepted for publication in The Astrophysical Journal Supplement Series
Evaluating the potential efficacy of high-intensity interval training within year 7 physical education classes: a non-randomised comparison trial
Creators: name: Weaver, Nathan
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Although High-Intensity Interval Training (HIIT) is perceived as an efficient way to meet health outcomes in Physical Education (PE), the effect HIIT has on students'motivation and the learning environment is unknown. This study compared two PE interventions lasting eight weeks and assessed the potential efficacy of embedding HIIT into a PE program to meet concurrent health and educative outcomes. Participants (N =166; mean age = 12.9 years) were assigned to one of two study conditions according to intact groupings: HIIT program (n = 84) and Dynamic Physical Education (DPE) program (n =82). Assessments were conducted at baseline and post-intervention. Intervention effects for each variable were examined using measures of central tendency, analysis of variance and effect sizes. Post-intervention analysis demonstrated increases in health indices of both groups and comparing the effect size of each intervention revealed no difference. The DPE group exhibited moderate intervention effects for motivation towards PE, while the mean value of the HIIT group did not change. Systematic direct observation revealed large intervention effects for the provision of feedback within the HIIT intervention when compared to the DPE intervention (d= 3.67). This study demonstrates HIIT interventions may elicit positive changes to PE settings, allowing health and educative outcomes to be achieved concurrently.
К ПРОБЛЕМЕ ХАРАКТЕРИСТИКИ СРЕДНЕВЕКОВЫХ КУЛЬТУР УРАЛО-ПОВОЛЖЬЯ
Creators: name: КАЗАКОВ ЕВГЕНИЙ ПЕТРОВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: ВОЛЖСКИЕ БОЛГАРЫ
УГРЫ
МАНСИЙСКИЕ ФРАТРИИ
ПОСТПЕГРОМСКАЯ КУЛЬТУРА
ЧИЯЛИКСКАЯ КУЛЬТУРА
VOLGA BOLGARS
UGRIC PEOPLES
MANSI PHRATRIES
POSTPEGROMSKAYA CULTURE
CHIYALIKSKAYA CULTURE

description: Статья посвящена характеристике и взаимодействию средневековых культур Урало-Поволжья. Этот регион входил в зону влияния всех эпохальных событий Евразии, что отражалось на появлении здесь новых культур и их миграциях. Особенно важным является археологическое утверждение угорских культур, начало которому положили широкие раскопки, начиная с 60 70-х гг. XX в., языческих могильников ранней Волжской Болгарии. В результате изучения и анализа их материала выявлено, что угорские племена, в основном мансийского круга, занимали широкую территорию Большого Урала и Волго-Камья. Они, находясь в многолетнем взаимодействии с Волжской Болгарией, составляли значительную часть её населения. Определено также, что прикамские культуры: неволинская, ломоватовская, поломская, которые ранее связывали с финнами, являлись угорскими. Лишь в X XI вв. их сменили чепецкая и родановская культуры предков удмуртов и коми, мигрировавшие под натиском Руси на восток.
Self-similar scalar field collapse
Creators: name: Banerjee, Narayan
name: Chakrabarti, Soumya
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A spherically symmetric collapsing scalar field model is discussed with a dissipative fluid which includes a heat flux. This vastly general matter distribution is analyzed at the expense of a high degree of symmetry in the space-time, that of conformal flatness and self-similarity. Indeed collapsing models terminating into a curvature singularity can be obtained. The formation of black holes or the occurrence of naked singularities depends on the initial collapsing profiles.
Superconducting and density-wave instabilities of low dimensional conductors with a Zeeman coupling to a magnetic field
Creators: name: Shahbazi, M.
name: Fuseya, Y.
name: Bakrim, H.
name: Sedeki, A.
name: Bourbonnais, C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the framework of the weak coupling renormalization group technique we examine the possible instabilities of the extended quasi-one-dimensional electron gas model with both intrachain and interchain electron-electron interactions, including the influence of umklapp scattering and the coupling of spins to a magnetic field. In the limit of purely repulsive intrachain interactions, we confirm the passage from singlet d-wave like superconductivity to an inhomogeneous FFLO state under magnetic field. The passage is accompanied by an anomalous increase of the upper critical field that scales with the antinesting distance from the quantum critical point joining superconductivity to antiferromagnetism in the phase diagram, as well as the strength of interactions. Adding weak repulsive interchain interactions promotes the passage from singlet to triplet $f$-wave superconductivity which is expanded under field by the development of a triplet FFLO state with zero angular momentum projection for the Cooper pairs. The connection between theory and experiments on the anomalous upper critical field in the Bechgaard salts is discussed.
description: 11 pages, 8 figures
ИСТОЧНИКИ О ВОСТОЧНЫХ МАДЬЯРАХ В УЛУСЕ ДЖУЧИ
Creators: name: КУШКУМБАЕВ АЙБОЛАТ КАЙРСЛЯМОВИЧ
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: ВОСТОЧНЫЕ МАДЬЯРЫ
ЛАТИНОЯЗЫЧНЫЕ ИСТОЧНИКИ
АРАБСКИЕ И ПЕРСИДСКИЕ СОЧИНЕНИЯ
МОНГОЛЬСКИЕ ИСТОЧНИКИ
ДЖУЧИЕВ УЛУС
"ВЕЛИКАЯ ВЕНГРИЯ"
ЕВРАЗИЙСКИЙ РЕГИОН
EASTERN MAGYARS
LATIN SOURCES
ARABIC AND PERSIAN WORKS
MONGOLIAN SOURCES
ULUS OF JOCHI
GREAT HUNGARY
EURASIA

description: Статья посвящена обзору извлечений латиноязычных, монгольских и арабо-персидских источников по истории восточных мадьяр XIII-XV веков, проживавших на территории чингизидских улусов-владений евразийского региона. Наиболее ценные сведения о восточных мадьярах сообщают латиноязычные манускрипты XIII-XIV веков и подтверждаются свидетельствами параллельных восточных сочинений: «Тайная история монголов», «Джами ат-таварих» Рашид ад-Дина и другими арабскими и персидскими источниками. Достоверно установленным можно считать, что отдельная мадьяроязычная группа проживала на территории Джучиева улуса в конце XIV середине XV веков в районе золотоордынского города Азак, в низовьях реки Дон. Другие группы восточных мадьяр зафиксированы на территории Северного Кавказа, Центральной Азии. Особо важные сведения сообщают о восточных мадьяр письмо папа Иоанн XXII, обращенное вождю Йеретамиру, находившемуся в Самарканде.
Analytical slave-spin mean-field approach to orbital selective Mott insulators
Creators: name: Komijani, Yashar
name: Kotliar, Gabriel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use the slave-spin mean-field approach to study particle-hole symmetric one- and two-band Hubbard models in presence of Hund's coupling interaction. By analytical analysis of Hamiltonian, we show that the locking of the two orbitals vs.\,orbital-selective Mott transition can be formulated within a Landau-Ginzburg framework. By applying the slave-spin mean-field to impurity problem, we are able to make a correspondence between impurity and lattice. We also consider the stability of the orbital selective Mott phase to the hybridization between the orbitals and study the limitations of the slave-spin method for treating inter-orbital tunnellings in the case of multi-orbital Bethe lattices with particle-hole symmetry.
Analytic expressions of amplitudes by the cross-ratio identity method
Creators: name: Zhou, Kang
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order to obtain the analytic expression of an amplitude from a generic CHY-integrand, a new algorithm based on the so-called cross-ratio identities has been proposed recently. In this paper, we apply this new approach to a variety of theories including: non-linear sigma model, special Galileon theory, pure Yang-Mills theory, pure gravity, Born-Infeld theory, Dirac-Born-Infeld theory and its extension, Yang-Mills-scalar theory, Einstein-Maxwell theory as well as Einstein-Yang-Mills theory. CHY-integrands of these theories which contain higher-order poles can be calculated conveniently by using the cross-ratio identity method, and all results above have been verified numerically.
description: 22 pages
Thermostat Influence on the Structural Development and Material Removal during Abrasion of Nanocrystalline Ferrite
Creators: name: Eder, Stefan J.
name: Cihak-Bayr, Ulrike
name: Bianchi, Davide
name: Feldbauer, Gregor
name: Betz, Gerhard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider a nanomachining process of hard, abrasive particles grinding on the rough surface of a polycrystalline ferritic work piece. Using extensive large-scale molecular dynamics (MD) simulations, we show that the mode of thermostatting, i.e., the way that the heat generated through deformation and friction is removed from the system, has crucial impact on tribological and materials related phenomena. By adopting an electron-phonon coupling approach to parametrize the thermostat of the system, thus including the electronic contribution to the thermal conductivity of iron, we can reproduce the experimentally measured values that yield realistic temperature gradients in the work piece. We compare these results to those obtained by assuming the two extreme cases of only phononic heat conduction and instantaneous removal of the heat generated in the machining interface. Our discussion of the differences between these three cases reveals that although the average shear stress is virtually temperature independent up to a normal pressure of approximately 1 GPa, the grain and chip morphology as well as most relevant quantities depend heavily on the mode of thermostatting beyond a normal pressure of 0.4 GPa. These pronounced differences can be explained by the thermally activated processes that guide the reaction of the Fe lattice to the external mechanical and thermal loads caused by nanomachining.
Magnetic states of linear defects in graphene monolayers: effects of strain and interaction
Creators: name: Alexandre, Simone S.
name: Nunes, R. W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The combined effects of defect-defect interaction and of uniaxial or biaxial strains of up to 10\% on the development of magnetic states on the defect-core-localized quasi-one-dimensional electronic states generated by the so-called 558 linear extended defect in graphene monolayers are investigated by means of {\it ab initio} calculations. Results are analyzed on the basis of the heuristics of the Stoner criterion. We find that conditions for the emergence of magnetic states on the 558 defect can be tuned by uniaxial tensile parallel strains (along the defect direction) at both limits of isolated and interacting 558 defects. Parallel strains are shown to lead to two cooperative effects that favor the emergence of itinerant magnetism: enhancement of the DOS of the resonant defect states in the region of the Fermi level and tuning of the Fermi level to the maximum of the related DOS peak. A perpendicular strain is likewise shown to enhance the DOS of the defect states, but it also effects a detunig of the Fermi level that shifts away from the maximum of the DOS of the defect states, which inhibts the emergence of magnetic states. As a result, under biaxial strains the stabilization of a magnetic state depends on the relative magnitudes of the two components of strain.
description: 9 pages 8 figures
On the Lagrangian Structure of Reduced Dynamics Under Virtual Holonomic Constraints
Creators: name: Mohammadi, Alireza
name: Maggiore, Manfredi
name: Consolini, Luca
Publisher: name: arXiv
Year: 2017
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 70Q05, 93C10, 93C15, 49Q99

description: This paper investigates a class of Lagrangian control systems with $n$ degrees-of-freedom (DOF) and n-1 actuators, assuming that $n-1$ virtual holonomic constraints have been enforced via feedback, and a basic regularity condition holds. The reduced dynamics of such systems are described by a second-order unforced differential equation. We present necessary and sufficient conditions under which the reduced dynamics are those of a mechanical system with one DOF and, more generally, under which they have a Lagrangian structure. In both cases, we show that typical solutions satisfying the virtual constraints lie in a restricted class which we completely characterize.
description: 23 pages, 5 figures, published online in ESAIM:COCV on April 28th, 2017
Conformal mapping of rectangular heptagons II
Creators: name: Bogatyrev, A. B.
name: Grigor'ev, O. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C20, 14H42, 30C30

description: A new analytical method for the conformal mapping of a rectangular heptagon with a straight angle at infinity to a half plane and back is proposed. The method is based on the observation that SC integral in this case is an abelian integral on a genus two curve, so it may be represented in terms of Riemann theta functions. The approach is illustrated by the computation of 2D flow of ideal fluid above rectangular underlying surface and the computation of the capacities of multi component rectangular condensers with axial symmetry.
description: 16 pages, 5 figures, 2 tables
A multi-scalar climatological analysis in preparation for extreme heat at the Tokyo 2020 Olympic and Paralympic Games
Creators: name: Vanos, Jennifer K.
name: Thomas, Wendy Marie
name: Grundstein, Andrew J.
name: Hosokawa, Yuri
name: Liu, Ying
name: Casa, Douglas J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Extreme heat can be harmful to human health and negatively affect athletic performance. The Tokyo Olympic and Paralympic Games are predicted to be the most oppressively hot Olympics on record. An interdisciplinary multi-scale perspective is provided concerning extreme heat in Tokyo—from planetary atmospheric dynamics, including El Niño Southern Oscillation (ENSO), to fine-scale urban temperatures—as relevant for heat preparedness efforts by sport, time of day, and venue. We utilize stochastic methods to link daytime average wet bulb globe temperature (WBGT) levels in Tokyo in August (from meteorological reanalysis data) with large-scale atmospheric dynamics and regional flows from 1981 to 2016. Further, we employ a mesonet of Tokyo weather stations (2009–2018) to interpolate the spatiotemporal variability in near-surface air temperatures at outdoor venues. Using principal component analysis, two planetary (ENSO) regions in the Pacific Ocean explain 70% of the variance in Tokyo’s August daytime WBGT across 35 years, varying by 3.95°C WGBT from the coolest to warmest quartile. The 10-year average daytime and maximum intra-urban air temperatures vary minimally across Tokyo (<1.2°C and 1.7°C, respectively), and less between venues (0.6–0.7°C), with numerous events planned for the hottest daytime period (1200–1500 hr). For instance, 45% and 38% of the Olympic and Paralympic road cycling events (long duration and intense) occur midday. Climatologically, Tokyo will present oppressive weather conditions, and March–May 2020 is the critical observation period to predict potential anomalous late-summer WBGT in Tokyo. Proactive climate assessment of expected conditions can be leveraged for heat preparedness across the Game’s period.
Experimental evidence for pressure-induced first order transition in cerium nitride from B1 to B10 structure type
Creators: name: Nielsen, Morten B.
name: Ceresoli, Davide
name: Jørgensen, Jens-Erik
name: Prescher, Clemens
name: Prakapenka, Vitali B.
name: Bremholm, Martin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The crystal structure of CeN was investigated up to pressures of 82 GPa, using diamond anvil cell powder X-ray diffraction in two experiments with He and Si-oil as the pressure transmitting media. In contrast to previous reports, we do not observe the B2 (CsCl type) structure at high pressure. Instead, the structural phase transition, starting at 65 GPa, from the ambient rock salt B1 structure results in a distorted CsCl-like B10 structure, irrespective of the pressure medium. Our result unambiguously confirms two recent density functional theory (DFT) studies predicting the B10 phase to be stable at these pressures, rather than the B2 (CsCl type) phase previously reported. The B10 structure appears to approach the B2 structure as pressure is increased further, but DFT calculations indicate that an L1 0 structure (AuCu type) is energetically favored.
description: 35 pages, preprint
The theory of gravitation: A tale of many questions and few answers
Creators: name: Herrera, L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss on different issues pertaining the theory of gravity, which pose some unresolved fundamental questions. First we tackle the problem of observers in general relativity, with particular emphasis in tilted observers. We explain why these observers may detect dissipative processes in systems which appear isentropic to comoving observers. Next we analyze the strange relationship between vorticity and radiation, and underline the potential observational consequences of such a link. Finally we summarize all the results that have been obtained so far on the physical properties of the sources of gravitational radiation. We conclude with a list of open questions which we believe deserve further attention.
description: 22 pages latex. Partially based on a talk delivered at "70&70 Gravitation Fest", Cartagena, Colombia, September 2016. arXiv admin note: text overlap with arXiv:1703.03958
Supplementary document for Gold-induced photothermal background in on-chip surface enhanced stimulated Raman spectroscopy - 5041351.pdf
Creators: name: Reynkens, Kristof
name: Clemmen, Stéphane
name: Zhao, Haolan
name: Raza, Ali
name: Vanackere, Tom
name: Stassen, Andim
name: Van Daele, Michiel
name: Dendooven, Jolien
name: Baets, Roel G.
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Nonlinear Optics and Spectroscopy

description: Supplemental document
A study of the emergence of Pop art in the Australian social and cultural milieu of the 1960's with particular reference to the work of Sydney artist, Ken Reinhard
Creators: name: Reinhard, Arianne Jennifer
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: This investigation asserts that in the 1960's the artist Ken Reinhard was not only at the forefront of Pop art in Australia but was its leading exponent. In a virtually alien environment Reinhard sought, via a reliance upon local stimuli, to develop a style unique to him, which in retrospect is seen to embody many of the idiosyncratic elements of International Pop art. The first chapter discusses the emergence of Pop art in Great Britain and the United States. It explains the main characteristics in the context of these specific environments. The second chapter outlines the Australian cultural environment of the 1960's, highlighting links between this unique urban culture and the Australian Pop art works that were produced in this period. Chapter three analyses Sydney Pop art based on those characteristics identified in the preceding two chapters. The focus of the chapter is to provide not only a cultural link between local examples of Pop art and the 1960's Australian urban environment, but also to trace reasons behind the comparative rarity of examples of Pop art in Australia. Both theoretical and experiential reasoning is adopted in a dialectic which at times reinforces and at times disregards some of the documented examples of what was called 'Pop art' in Australia. In the fourth chapter the main argument is expanded with a comprehensive chronological investigation of Ken Reinhard's 1960's exhibitions. Both primary and secondary evidence is used to support the hypothesis that Reinhard was the major exponent of 'Pop' at that time, in this country. The final chapter, provides an overview of Ken Reinhard's 1960's artworks from a retrospective viewpoint using writings from the following decade.
Ward identities for charge and heat currents of particle-particle and particle-hole pairs
Creators: name: Narikiyo, Osamu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Ward identities for the charge and heat currents are derived for particle-particle and particle-hole pairs. They are the exact constraints on the current-vertex functions imposed by conservation laws and should be satisfied by consistent theories. While the Ward identity for the charge current of electrons is well established, that for the heat current is not understood correctly. Thus the correct interpretation is presented. On this firm basis the Ward identities for pairs are discussed. As the application of the identity we criticize some inconsistent results in the studies of the superconducting fluctuation transport and the transport anomaly in the normal state of high-Tc superconductors.
ЎЗБЕК МАДАНИЯТИ  ВА  ЭВОЛЮЦИЯСИНИ ХИТОЙ МАНБАЛАРИДА АКС ЭТИШИ
Creators: name: Холмирзаев, Хайитбой
Publisher: name: Zenodo
Year: 2024

description: Тарихдан маълумки, милоддан аввалги III минг йилликда, Ўрта Осиёнинг кўпгина ҳудудлари, қадимги аҳоли томонидан ўзлаштириб бўлинган эди. Дашт ва ярим чўл ҳудудларда истиқомат қилган кўчманчи чорвадорлар, воҳаларнинг ўтроқ аҳолиси билан ўзаро алоқалари бронза даврига келиб янада ривожланди. Ўтмишда, Ўрта Осиё худудида истеъқомат қилган аҳолининг ҳаёти ва турмуш тарзи ҳар жиҳатдан ривож топишида савдо-сотиқ ва транзит йўллар, алоҳида аҳамият касб этади.
Synthesis, photophysical and electrochemical properties of triazolyl dendrimers with thiazolylchalcone surface unit
Creators: name: Kannan Rajavelu
name: Perumal Rajakumar
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Synthesis of novel triazolyl dendrimers with thiazolylchalcone surface group and triazole as bridging unit has been achieved in good yields by click chemistry via convergent approach. All the triazolyl dendrimers showed an absorption band between 293-336 nm and an emission band between 430-435 nm. The intensity of the absorption and emission bands increases on increasing the number of dendritic wedges and triazole units. Triazolyl dendrimers exhibited quasi reversible behaviour in cyclic voltammetry. A shift in the reversible potential was observed in cyclic voltammetry on increasing the dendritic wedges in the triazolyl dendrimers.
О МИГРАЦИЯХ ИЗ ЗАПАДНОЙ СИБИРИ В ЕВРОПУ В РАННЕМ ЖЕЛЕЗНОМ ВЕКЕ И В ЭПОХУ ВЕЛИКОГО ПЕРЕСЕЛЕНИЯ НАРОДОВ
Creators: name: МАТВЕЕВА НАТАЛЬЯ ПЕТРОВНА
Publisher: name: Археология евразийских степей
Year: 2018
Subjects: АРХЕОЛОГИЯ
СТЕПИ ЕВРАЗИИ
ГОРОХОВСКАЯ
САРГАТСКАЯ
БАКАЛЬСКАЯ КУЛЬТУРЫ
МИГРАЦИИ
ARCHAEOLOGY
EURASIAN STEPPE
GOROKHOVO
SARGATKA
BAKALSKAYA CULTURES
MIGRATIONS

description: Совокупность археологических и антропологических данных показывает переселение полукочевников носителей гороховской культуры с восточных склонов Урала на запад под давлением населения саргатской культуры в IV-III вв. до н.э. и размещение их в степном и лесостепном Приуралье в составе объединений сарматов. Затем в первые века н.э. начинаются войны и подвижки в южной части саргатского ареала под влиянием гуннов и поздних сарматов и отток в II-III вв. кочевых групп на запад. Следы их переселения в виде характерных каркасно-столбовых жилищ и керамики фиксируются в Поволжье и Подунавье. В IV-VII вв. имели место несколько вторжений кочевников в бакальскую среду Тоболо-Ишимья и вытеснение части западносибирского населения на запад под влиянием протоболгар, авар и ранних тюрков. Установлено, что развитию номадной культуры и миграциям способствовали периодические волны аридизации климата и даже существенные подвижки природных зон на север, включавшие западную часть западносибирской лесостепи в ареал хозяйствования казахстанских кочевников.
title: ADCO, Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Cart. 179 (11 H 1075), 70 folios, f. 0077
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0077, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0077, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Petrographic, geochemical and geochronological characterisation of Batavia Knoll Dredge samples, Perth Abyssal Plain: implications for linkage with Gondwana
Creators: name: Kobler, Madeline Elsa
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: This study heralds the discovery of a submarine micro-continent called Batavia Knoll, confirming its previously unknown continental crust affinity. The Knoll is submerged under approximately 2km of water on the Perth Abyssal Plain, some 1600km west of the Western Australian coast. Detailed petrographic, geochemical and geochronological analysis of seven representative dredge samples from Batavia Knoll has enabled the characterisation of these rocks, and thus of the Knoll. It is comprised predominantly of granites, granite gneisses, intermediate gneisses, schists and sandstones. The majority of the analysed granitoids (n=6) record emplacement and orogenesis from the latest Neo-Proterozoic to Cambrian. These rocks subsequently enjoyed tectonothermal activity soon after emplacement, marked by zircon disturbance and metamorphic/deformation textures. Older basement rocks were not sampled, unless the zircon poor intermediate gneisses are significantly older than the granitoids. The dredged sandstone rocks were not examined in this study, but likely represent rift-related sedimentation during Gondwana dispersal at ca.132 Ma. These sandstones will be examined at the University of Sydney. The presence of orogenic activity associated with Gondwana amalgamation between 600-500 Ma combined with current plate tectonic reconstructions allows for the correlation of Batavia Knoll with the Kuunga Orogeny.
Synthesis, photophysical, and electrochemical properties of triazolyl dendrimers with thiazolylchalcone surface unit
Creators: name: Kannan Rajavelu
name: Perumal Rajakumar
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Synthesis of novel triazolyl dendrimers with thiazolylchalcone surface group and triazole as bridging unit has been achieved in good yields by click chemistry through convergent approach. All the triazolyl dendrimers showed an absorption band between 293 and 336 nm and an emission band between 430 and 435 nm. The intensity of absorption and emission bands increases on increasing the number of dendritic wedges and triazole units. Triazolyl dendrimers exhibited quasi-reversible behavior in cyclic voltammetry. A shift in the reversible potential was observed in cyclic voltammetry on increasing the dendritic wedges in the triazolyl dendrimers.
Symmetry-guided large-scale shell-model theory
Creators: name: Launey, Kristina D.
name: Dytrych, Tomas
name: Draayer, Jerry P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this review, we present a symmetry-guided strategy that utilizes exact as well as partial symmetries for enabling a deeper understanding of and advancing ab initio studies for determining the microscopic structure of atomic nuclei. These symmetries expose physically relevant degrees of freedom that, for large-scale calculations with QCD-inspired interactions, allow the model space size to be reduced through a very structured selection of the basis states to physically relevant subspaces. This can guide explorations of simple patterns in nuclei and how they emerge from first principles, as well as extensions of the theory beyond current limitations toward heavier nuclei and larger model spaces. This is illustrated for the ab initio symmetry-adapted no-core shell model (SA-NCSM) and two significant underlying symmetries, the symplectic Sp(3,R) group and its deformation-related SU(3) subgroup. We review the broad scope of nuclei, where these symmetries have been found to play a key role: from light to intermediate-mass nuclei, based on first-principle explorations; through the Hoyle state in C-12, within a no-core shell-model perspective; up to strongly deformed species of the rare-earth and actinide regions, as investigated in earlier studies. A complementary picture, driven by symmetries dual to Sp(3,R), is also discussed. We briefly review symmetry-guided techniques that prove useful in various nuclear-theory models, such as Elliott model, ab initio SA-NCSM, symplectic model, pseudo-SU(3) and pseudo-symplectic models, ab initio hyperspherical harmonics method, ab initio lattice effective field theory, exact pairing-plus-shell model approaches, and cluster models. Important implications of these approaches that have deepened our understanding of emergent phenomena in nuclei, such as enhanced collectivity, giant resonances, pairing, halo, and clustering, are discussed.
description: Review article; 54 pages, 22 figures