cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ИСТОРИЧЕСКИЙ КОНТЕКСТ ФОРМИРОВАНИЯ МУЗЫКАЛЬНОЙ КУЛЬТУРЫ ДРЕВНЕЙ ПЕРСИИ: ПУТЬ К ИСКУССТВУ МАКОМАТ И ХРИСТИАНСКОЙ ЛИТУРГИИ (ОПЫТ ИСТОРИЧЕСКОЙ РЕКОНСТРУКЦИИ)
Creators: name: ЧЕРКАСОВА НАТАЛЬЯ ЛАЗАРЕВНА
Publisher: name: Искусство музыки: теория и история
Year: 2019
Subjects: ПЕРСИЯ
АХЕМЕНИДЫ
ПРАЗДНИК АКИТУ
ЗОРОАСТРИЗМ
АЛЕКСАНДР МАКЕДОНСКИЙ
ПАРФЯНЕ
КУШАНЫ
САСАНИДЫ
МАКОМ/МАКАМ
НОМ
КЛАССИЧЕСКАЯ МУЗЫКА ИСЛАМСКОГО МИРА
ГУШЕ
ХРИСТИАНСКАЯ ЛИТУРГИЯ
PERSIA
ACHAEMENIDS
AKITU FESTIVAL
ZOROASTRIANISM
ALEXANDER THE GREAT
PARTHIANS
KUSHANS
SASANIANS
MAQOM/ MAQAM
NOMOS
CLASSICAL MUSIC OF THE ISLAMIC WORLD
GUSHEH
CHRISTIAN LITURGY

description: Материалы о музыкальной культуре древней Персии не сохранились; сведения о ней могут быть получены почти исключительно из косвенных источников. Анализируемые данные охватывают период от завоеваний Кира Великого (VI в. до н. э.) до конца правления Сасанидов (VII в. н. э.). В поле внимания автора такие исторические реалии, как влияние процветавших при Ахеменидах ближневосточных культов на античные дионисийские мистерии и обратное влияние греческой культуры на персидскую вследствие завоеваний Александра Македонского, значение зороастризма, формирование парфянской культуры, связанное с возвращением ирано-персидский традиций, синкретизм кушанской культуры. Отмечается, что культура древней Персии, несмотря на все исторические перипетии, сумела сохранить потенциал автохтонной традиции. Базисная идея персидской музыки, известная как маком и родственная индийской раге, обнаруживает черты сходства с античной идеей нома («закона»). Со временем все три художественные традиции, развиваясь, обретали собственное стилистическое своеобразие; о некоторых особенностях древнеперсидского музыкального мышления можно судить ретроспективно, имея в виду, что его элементы были адаптированы классической музыкой исламского мира и музыкой христианской литургии.
Functions of q-positive type
Creators: name: Dhaouadi, Lazhar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this paper we characterize the subspace of $\mathcal{L}_{q,1,v}$ of function which are the q-Bessel Fourier transform of positive functions in $\mathcal{L}_{q,1,v}$. As application we give a q-version of the Bochner's theorem.
ДАЛЬХАУС КАРЛ ИЗБРАННЫЕ ТРУДЫ ПО ИСТОРИИ И ТЕОРИИ МУЗЫКИ
Creators: name: ХАЙНЕМАН МИХАЭЛЬ
name: НАУМОВИЧ СТЕПАН
Publisher: name: Искусство музыки: теория и история
Year: 2019
Subjects: КАРЛ ДАЛЬХАУС
ТЕОРИЯ МУЗЫКИ
ИСТОРИЯ МУЗЫКИ
ЭСТЕТИКА МУЗЫКИ
ОПЕРА
НОВАЯ МУЗЫКА
CARL DAHLHAUS
MUSIC THEORY
MUSIC HISTORY
MUSIC AESTHETICS
OPERA
NEW MUSIC

description: Первое издание избранных трудов выдающегося немецкого музыковеда Карла Дальхауса (1928-1989) на русском языке, со вступительной статьей ученика Дальхауса Михаэля Хайнемана и послесловием составителя сборника, переводчика и автора комментариев Степана Наумовича. Публикуемые работы отражают широту интересов исследователя: новая музыка, теория музыки, история и эстетика музыки.First Russian publication of selected works by the outstanding German musicologist Carl Dahlhaus (1928-1989), with introductory article by his pupil Michael Heinemann and postface by the collection’s compiler, translator and author of the comments Stepan Naumovich. The published texts reflect the breadth of Dahlhaus’s scholarly interests: new music, music theory, music history and aesthetics.
Jamming dynamics in grain mixtures : An extended hydrodynamic approach
Creators: name: Sinha, Supurna
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study jamming in granular mixtures from the novel point of view of extended hydrodynamics. Using a hard sphere binary mixture model we predict that a few large grains are expected to get caged more effectively in a matrix of small grains compared to a few small grains in a matrix of larger ones. A similar effect has been experimentally seen in the context of colloidal mixtures.
description: To appear in ``Fluctuation and Noise Letters''
СЛОВО О МУЗЫКЕ В РУССКОМ ЗАРУБЕЖЬЕ: АННОТИРОВАННЫЙ КАТАЛОГ СТАТЕЙ РУССКОЯЗЫЧНОЙ ГАЗЕТНОЙ ПЕРИОДИКИ РУБЕЖА И ПЕРВОЙ ПОЛОВИНЫ 1920-Х ГОДОВ (ПРОДОЛЖЕНИЕ)
Creators: name: КОРАБЕЛЬНИКОВА ЛЮДМИЛА ЗИНОВЬЕВНА
name: БОБРИК ОЛЕСЯ АНАТОЛЬЕВНА
name: ЛЮЩИНА ЕЛИЗАВЕТА ИГОРЕВНА
Publisher: name: Искусство музыки: теория и история
Year: 2019
Subjects: РУССКОЕ ЗАРУБЕЖЬЕ
МУЗЫКА
РУССКОЯЗЫЧНАЯ ГАЗЕТНАЯ ПЕРИОДИКА
"НОВОЕ ВРЕМЯ"
БЕЛГРАД
RUSSIAN DIASPORA
MUSIC
RUSSIAN-LANGUAGE PRESS
NOVOE VREMYA
BELGRADE

description: Настоящей публикацией каталога материалов, вышедших в белградской русскоязычной газете «Новое время» за 1925 год, продолжается проект «Слово о музыке в Русском зарубежье: аннотированный указатель статей русскоязычной газетной периодики Русского зарубежья».
Оперные штудии
Creators: name: Раку Марина
Publisher: name: Искусство музыки: теория и история
Year: 2019
Subjects: Опера
театр
«раннее Отточенто»
Мейербер
Вагнер
Чайковский
советская опера
современная опера

description: Книга состоит из трех разделов. Первый, «На романтических подмостках», сосредоточен на масштабных фигурах и значимых явлениях оперного театра XIX века. Во втором разделе подробно рассматривается история раннесоветского (1920–30-е годы) оперного театра. Третий раздел обращен к ситуации современного музыкального театра с его активно обсуждаемыми проблемами. Часть статей перепечатывается из научных изданий 1990–2010-х годов, более половины книги составляют новые тексты.
ИСТОРИЯ ИСКУССТВА ЭПОХИ ЭНЕРГЕТИЗМА. ИОФФЕ / ЭЙЗЕНШТЕЙН
Creators: name: АНДРЕЕВА ЕКАТЕРИНА
Publisher: name: Искусствознание
Year: 2020
Subjects: И . И . ИОФФЕ
ДЗИГА ВЕРТОВ
С.М. ЭЙЗЕНШТЕЙН
ЭНЕРГЕТИЧЕСКИЙ МОНТАЖ
ГУМАНИСТИЧЕСКИЙ МОНТАЖ
ДИНАМИЗМ
ПАНЭНЕРГЕТИЗМ
ПАНТЕИЗМ

description: Статья посвящена термину «энергетический монтаж», который в 1937 году в книге «Синтетическое изучение искусства и звуковое кино» предложил наравне с термином «гуманистический монтаж» И. И. Иоффе. Автор связывает данный термин с понятиями философии энергетизма, с интересом к динамизму в новейшем искусстве, в частности в супрематизме, с теорией и практикой С. М. Эйзенштейна и Дзиги Вертова. В статье показана динамика использования энергетических метафор в 1920-е и ее угасание к 1937 году. Теория Иоффе фиксирует момент замены культуры полифонической на культуру, которая декларирует жесткую нормативность и подчиняется единой воле.
Exit problems associated with affine reflection groups
Creators: name: Doumerc, Yan
name: Moriarty, John
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55, 60J65

description: We obtain a formula for the distribution of the first exit time of Brownian motion from the alcove of an affine Weyl group. In most cases the formula is expressed compactly, in terms of Pfaffians. Expected exit times are derived in the type Ã case. The results extend to other Markov processes. We also give formulas for the real eigenfunctions of the Dirichlet and Neumann Laplacians on alcoves, observing that the `Hot Spots' conjecture of J. Rauch is true for alcoves.
description: 34 pages. Rewritten in some places to improve presentation. To appear in Probability Theory and Related Fields
Path Distinguishability in Double Scattering of Light by Atoms
Creators: name: Miniatura, Christian
name: Müller, Cord A.
name: Lu, Yin
name: Wang, Guangquan
name: Englert, Berthold-Georg
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Wave-particle duality finds a natural application for electrons or light propagating in disordered media where coherent corrections to transport are given by two-wave interference. For scatterers with internal degrees of freedom, these corrections are observed to be much smaller than would be expected for structureless scatterers. By examining the basic example of the scattering of one photon by two spin-1/2 atoms--a case-study for coherent backscattering--we demonstrate that the loss of interference strength is associated with which-path information stored by the scattering atoms.
description: 4 pages, 1 figure; version 2: address correction
Cosmic ray tests of a liquid argon calorimeter
Creators: name: Bougerolle, Stephen Edward
Publisher: name: University of British Columbia
Year: 2010

description: A series of tests have been performed on a liquid argon calorimeter module at the Test Beam Facility at the Stanford Linear Accelerator Centre. We find that the calorimeter performs according to design. Several performance parameters have been measured. The charge-collection efficiency in a tower of the calorimeter was observed to be 87%. This loss is due mainly to recombination; absorption by oxygen impurity seems insignificant. No detectable energy loss has been observed when a particle moves through the crack between adjacent towers. The cross-talk between two adjacent towers was measured and found to be in agreement with a simple model.
Heavy neutral leptons in effective field theory and the high-luminosity LHC
Creators: name: Cottin, Giovanna
name: Helo, Juan Carlos
name: Hirsch, Martin
name: Titov, Arsenii
name: Wang, Zeren Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Heavy neutral leptons (HNLs) with masses around the electroweak scale are expected to be rather long-lived particles, as a result of the observed smallness of the active neutrino masses. In this work, we study long-lived HNLs in $N_R$SMEFT, a Standard Model (SM) extension with singlet fermions to which we add non-renormalizable operators up to dimension-6. Operators which contain two HNLs can lead to a sizable enhancement of the production cross sections, compared to the minimal case where HNLs are produced only via their mixing with the SM neutrinos. We calculate the expected sensitivities for the ATLAS detector and the future far-detector experiments: AL3X, ANUBIS, CODEX-b, FASER, MATHUSLA, and MoEDAL-MAPP in this setup. The sensitive ranges of the HNL mass and of the active-heavy mixing angle are much larger than those in the minimal case. We study both, Dirac and Majorana, HNLs and discuss how the two cases actually differ phenomenologically, for HNL masses above roughly 100 GeV.
description: v1, 36 pages, 9 figures, 2 tables, and 2 appendices; v2, minor changes, accepted for publication in JHEP
Engineering electron wavefunctions in asymmetrically confined quasi one-dimensional structures
Creators: name: Kumar, S.
name: Pepper, M.
name: Montagu, H.
name: Ritchie, D.
name: Farrer, I.
name: Griffiths, J.
name: Jones, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present results on electron transport in quasi-one dimensional (1D) quantum wires in GaAs/AlGaAs heterostructures obtained using an asymmetric confinement potential. The variation of the energy levels of the spatially quantized states is followed from strong confinement through weak confinement to the onset of two-dimensionality. An anticrossing of the initial ground and first excited states is found as the asymmetry of the potential is varied giving rise to two anticrossing events which occur on either side of symmetric confinement. We present results analysing this behaviour and showing how it can be affected by the inhomogeneity in background potential. The use of an enhanced source-drain voltage to alter the energy levels is shown to be a significant validation of the analysis by showing the formation of double rows of electrons which correlate with the anticrossing.
description: 4 figures
ПОРТРЕТ ХУДОЖНИКА В СТАРОСТИ: ТИПОЛОГИЯ, СЕМАНТИКА, ПРАГМАТИКА
Creators: name: ЗЛЫДНЕВА НАТАЛИЯ
Publisher: name: Искусствознание
Year: 2020
Subjects: АВТОПОРТРЕТ
СТАРОСТЬ
ЖИВОПИСЬ
АВАНГАРД
МИФОЛОГИЯ
РЕМБРАНДТ
ТИЦИАН
МАЛЕВИЧ
ПЕТРОВ-ВОДКИН
ШАГАЛ

description: Автопортрет в поздний период творчества художников рассматривается как специфический метажанр. На основе типологического анализа обширного корпуса данных выделены несколько моделей автопортрета в старости: акоммуникативной («код Рембрандта»), автокоммуникативной («код Тициана») и гибридной (слиянии портрета с пейзажем). Они ориентированы на затрудненную коммуникацию («неясное» зрение, лицо-маска) и на инверсию во времени («жизнь-с-конца»). Показана антиномическая природа автопортрета в старости, обнажающего генезис портрета и отражающего пограничную зону искусства и «текста реальности». Материалом послужило творчество ведущих мастеров искусства XX века (преимущественно русских) в их сравнении с великими европейскими школами прошлого.
СЕРЕБРЯНЫЙ БРАСЛЕТ С ГОЛОВКАМИ МАКА ИЗ КОЛЛЕКЦИИ ГМИИ ИМ. А.С. ПУШКИНА. АТРИБУЦИЯ И АНАЛОГИИ
Creators: name: СМОЛЕНКОВА ВЕРА
name: КОЛГАНОВА ГАЛИНА
name: ВЕРГАЗОВ РАМИЛЬ
Publisher: name: Искусствознание
Year: 2020
Subjects: СЕРЕБРЯНЫЙ БРАСЛЕТ
АТРИБУЦИЯ
ГОЛОВКА МАКА
PAPAVER SOMNIFERUM
МОТИВ МАКОВОЙ КОРОБОЧКИ
ПРИКЛАДНОЕ ИСКУССТВО IV В. ДО Н.Э
АХЕМЕНИДЫ
ЭЛЛИНИЗМ
ЗАКАВКАЗЬЕ
ЕГИПЕТ
СЕВЕРНАЯ ПЕРИФЕРИЯ ДРЕВНЕПЕРСИДСКОЙ ИМПЕРИИ

description: Серебряный браслет из коллекции ГМИИ им. А. С. Пушкина представляет достаточно редкий тип украшения с изображением маковой коробочки на концах. Долгое время данный артефакт оставался без ясной атрибуции. В настоящей статье предложена атрибуция этого серебряного браслета и интерпретация мотива подобных декоративных завершений. Ближайшие аналогии из находок в Закавказье, Египте и на северной периферии древнеперсидской империи позволяют отнести наш браслет к произведениям прикладного искусства IV века до н. э., находящегося на рубеже ахеменидской и эллинистической эпох.
Critical pore radius and transport properties of disordered hard- and overlapping-sphere models
Creators: name: Klatt, Michael A.
name: Ziff, Robert M.
name: Torquato, Salvatore
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 82B43, 82D30, 74A40,

description: Descriptors that characterize the geometry and topology of the pore space of porous media are intimately linked to their transport properties. We quantify such descriptors, including pore-size functions and the critical pore radius $δ_c$, for four different models: maximally random jammed sphere packings, overlapping spheres, equilibrium hard spheres, and inherent structures of the quantizer energy. For precise estimates of the percolation thresholds, we use a strict relation of the void percolation around sphere configurations to weighted bond percolation on the corresponding Voronoi networks. We use the Newman-Ziff algorithm to determine the percolation threshold using universal properties of the cluster size distribution. Often, $δ_c$ is used as the key characteristic length scale that determines the fluid permeability $k$. A recent study [Torquato. Adv. Wat. Resour. 140, 103565 (2020)] suggested for porous media with a well-connected pore space an alternative estimate of $k$ based on the second moment of the pore size $\langleδ^2\rangle$. Here, we confirm that, for all porosities and all models considered, $δ_c^2$ is to a good approximation proportional to $\langleδ^2\rangle$. However, unlike $\langleδ^2\rangle$, the permeability estimate based on $δ_c^2$ does not predict the correct ranking of $k$ for our models. Thus, we confirm $\langleδ^2\rangle$ to be a promising candidate for convenient and reliable estimates of $k$ for porous media with a well-connected pore space. Moreover, we compare the fluid permeability of our models with varying degrees of order, as measured by the $τ$ order metric. We find that (effectively) hyperuniform models tend to have lower values of $k$ than their nonhyperuniform counterparts. Our findings could facilitate the design of porous media with desirable transport properties via targeted pore statistics.
ОБРАЗЫ И СМЫСЛЫ ИСКУССТВА ЭПОХИ ВЕЛИКОГО ПЕРЕСЕЛЕНИЯ НАРОДОВ В ПРОИЗВЕДЕНИЯХ МАЛЫХ ФОРМ
Creators: name: ПОТОКИНА ОЛЬГА
Publisher: name: Искусствознание
Year: 2020
Subjects: ВЕЛИКОЕ ПЕРЕСЕЛЕНИЕ НАРОДОВ
ИСКУССТВО РАННЕГО СРЕДНЕВЕКОВЬЯ
ДЕКОРАТИВНО-ПРИКЛАДНОЕ ИСКУССТВО
ИКОНОГРАФИЯ
ОБРАЗ ОРЛА

description: Статья посвящена выявлению ключевых особенностей художественного языка и анализу некоторых наиболее распространенных образов (орла, цикады) искусства эпохи Великого переселения народов, малоизученной в отечественном искусствоведении. Автор рассматривает произведения малых форм, занимающие значительное место в традициях различных племен варваров. Определенная устойчивость приемов и мотивов свидетельствует о закреплении за ними сакральных представлений об устройстве мироздания. В исследовании прослежены некоторые этапы их трансформации вплоть до завершения одного из периодов эпохального перехода от древности к Средневековью.
Threshold Resummation in B --> X_c l nu_l Decays
Creators: name: Aglietti, Ugo
name: Di Giustino, Leonardo
name: Ferrera, Giancarlo
name: Renzaglia, Alessandro
name: Ricciardi, Giulia
name: Trentadue, Luca
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the QCD form factor resumming threshold logarithms in B --> X_c + l + nu_l decays to next-to-leading logarithmic approximation. We present an interpolation formula including soft as well as collinear effects softened by the non-vanishing charm mass.
description: 24 pages, no figures
"ПЕЙЗАЖ С ВОДОПАДОМ" АНТУАНА ВАТТО В КОНТЕКСТЕ ПЕЙЗАЖНЫХ ДЕКОРАЦИЙ ФРАНЦУЗСКОЙ СЦЕНЫ НАЧАЛА XVIII ВЕКА
Creators: name: КОНШАКОВА АЛЕКСАНДРА
Publisher: name: Искусствознание
Year: 2020
Subjects: АНТУАН ВАТТО
ЖАН ВЕРЕН
ФРАНЦУЗСКОЕ ИСКУССТВО XVIII ВЕКА
РОКОКО
ПЕЙЗАЖ
СЦЕНОГРАФИЯ

description: Статья посвящена картине Антуана Ватто «Пейзаж с водопадом» (Государственный Эрмитаж). Автор рассматривает ее в новом контексте, а именно в контексте сценографии парижских театров начала XVIII века. Проводится сравнение с эскизами пасторальных декораций мастерской Жана Берена: сопоставляются предметное наполнение и пропорции ландшафтов. Важное место уделено соотнесению композиционных приемов Ватто и современных ему тенденций построения сценического пространства. С опорой на данные последних технологических исследований проводится анализ живописной манеры, делается предположение относительно этапов создания произведения и высказывается предложение по уточнению его датировки.
СТАТУИ АНТИ НОЯ В ВИДЕ ОСИРИСА ИЗ КОЛЛЕКЦИИ ГРАФА Н. П. ШЕРЕМЕТЕВА И ЕГИПЕТСКИЕ МОТИВЫ В УБРАНСТВЕ ОСТАНКИНСКОГО ТЕАТРА-ДВОРЦА
Creators: name: ГАВРИЛОВА ЕКАТЕРИНА
Publisher: name: Искусствознание
Year: 2020
Subjects: АНТИНОЙ В ВИДЕ ОСИРИСА
ГРАФ Н.П. ШЕРЕМЕТЕВ
МУЗЕЙ-УСАДЬБА ОСТАНКИНО
КОЛЛЕКЦИЯ СКУЛЬПТУРЫ
ЕГИПЕТСКИЕ МОТИВЫ
ИТАЛЬЯНСКАЯ СКУЛЬПТУРА

description: Статуи Антиноя в виде Осириса происходят из исторической коллекции Останкинского театра-дворца и наряду с архитектурным декором и многими элементами убранства дворца представляют тему Древнего Египта. В конце XVIII века на фоне возросшего интереса к древнеегипетской цивилизации в оформлении дворцовых интерьеров усиливается использование египетских мотивов. Статья разъясняет предпосылки и историю появления статуй Антиноя в виде Осириса в Останкино, формирует представление о способах приобретения графом Н. П. Шереметевым произведений искусства для своего дворца.
Electromagnetic Casimir densities for a wedge with a coaxial cylindrical shell
Creators: name: Saharian, A. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Vacuum expectation values of the field square and the energy-momentum tensor for the electromagnetic field are investigated for the geometry of a wedge with a coaxal cylindrical boundary. All boundaries are assumed to be perfectly conducting and both regions inside and outside the shell are considered. By using the generalized Abel-Plana formula, the vacuum expectation values are presented in the form of the sum of two terms. The first one corresponds to the geometry of the wedge without the cylindrical shell and the second term is induced by the presence of the shell. The vacuum energy density induced by the shell is negative for the interior region and is positive for the exterior region. The asymptotic behavior of the vacuum expectation values are investigated in various limiting cases. It is shown that the vacuum forces acting on the wedge sides due to the presence of the cylindrical boundary are always attractive.
description: 21 pages, 7 figures
Assessment_of_Risk_Factors_in_Patients_w.pdf
Creators: name: Niknamian, Sorush
Publisher: name: figshare
Year: 2021
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60502 Infectious Agents
subject: FOS: Biological sciences

description: Background: Hepatitis B virus (HBV) infection and its complications are major health problems. The aim of this study was to investigate the risk factors in patients with chronic hepatitis B (CHB). Methods: This cross-sectional study was performed on 174 patients with CHB who referred to the Shahid Mohammadi Hospital in the city of Bandar Abbas, Iran. Information was collected through a questionnaire. Results: 174 persons (97 males and 77 females) with a mean age of 42.96 years. There was no significant relationship between the risk of having a disease with gender, age, weight, height, waist circumference, hip circumference, body mass index, and waist–hip ratio (P > 0.05). The frequency of exposure to risk factors is as follows: History of hairdressers, vaccination, contact with suspected HBV persons, and family history of HBV positive in patients had a higher prevalence than other groups. Conclusion: It seems to be more important to pay attention to lifestyles, jobs, and cultural themes of Iranian people that predispose people to risk factors so as to implement measures to control HBV spread. Furthermore, awareness and social-health education to avoid unprotected sexual contact with an infected partner can be highly effective according to the high levels of hepatitis B infection among married persons. Despite existence of a long list of risk factors, various epidemiological studies with alternative methodologies along with meta-analysis of risk factors in each separate area seem to be helpful in collecting information about transmission.
Minimal two-body quantum absorption refrigerator
Creators: name: Bhandari, Bibek
name: Jordan, Andrew N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the phenomenon of absorption refrigeration, where refrigeration is achieved by heating instead of work, in two different setups: a minimal set up based on coupled qubits, and two non-linearly coupled resonators. Considering ZZ interaction between the two qubits, we outline the basic ingredients required to achieve cooling. Using local as well as global master equations, we observe that inclusion of XX type term in the qubit-qubit coupling is detrimental to cooling. We compare the cooling effect obtained in the qubit case with that of non-linearly coupled resonators (multi-level system) where the ZZ interaction translates to a Kerr-type non-linearity. For small to intermediate strengths of non-linearity, we observe that multi-level quantum systems, for example qutrits, give better cooling effect compared to the qubits. Using Keldysh non-equilibrium Green's function formalism, we go beyond first order sequential tunneling processes and study the effect of higher order processes on refrigeration. We find reduced cooling effect compared to the master equation calculations.
description: 14 pages and 10 figures
Foreign exchange markets: price response and spread impact
Creators: name: Londono, Juan Camilo Henao
name: Guhr, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: We carry out a detailed large-scale data analysis of price response functions in the spot foreign exchange market for different years and different time scales. Such response functions provide quantitative information on the deviation from Markovian behavior. The price response functions show an increase to a maximum followed by a slow decrease as the time lag grows, in trade time scale and in physical time scale, for all analyzed years. Furthermore, we use a price increment point (pip) bid-ask spread definition to group different foreign exchange pairs and analyze the impact of the spread in the price response functions. We find that large pip spreads have a stronger impact on the response. This is similar to what has been found in stock markets.
description: 12 pages, 3 figures, 2 tables. arXiv admin note: text overlap with arXiv:2010.15105
"В КАФЕ “АМБАССАДОР”. МАДЕМУАЗЕЛЬ БЕКА" ЭДГАРА ДЕГА: ОБРАЗ ИСТЕРО-ЭПИЛЕПТИЧЕСКОГО ТЕЛА
Creators: name: МАРТЫНОВА ДАРЬЯ
Publisher: name: Искусствознание
Year: 2020
Subjects: ФРАНЦУЗСКАЯ ЖИВОПИСЬ XIX ВЕКА
ЭДГАР ДЕГА
КАФЕ-КОНЦЕРТ
ИСТЕРИЯ
ВИЗУАЛЬНЫЕ ИССЛЕДОВАНИЯ
ИКОНОГРАФИЯ ТАНЦА

description: Литография Эдгара Дега «В кафе “Амбассадор”. Мадемуазель Бека» редко становится объектом для исследований. Однако это не только пример технической виртуозности мастера, но и важный исторический документ, фиксирующий рождение танцевального жанра, сложившегося под влиянием открытий в психологии и неврологии и воздействовавшего как на эволюцию танца, так и на развитие искусства. Рассматривая формирование новых амплуа и стилей в кафе-концертах и их влияние на визуальную культуру второй половины XIX века, автор приходит к выводу, что Дега был одним из первых живописцев, создавших живописную идиому апроприации жеста безумия и отразивших так называемый истерический бум второй половины XIX века, который сформировал новые принципы отражения телесности в искусстве.
The genetic code multiplet structure, in one number
Creators: name: Negadi, Tidjani
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: The standard genetic code multiplet structure as well as the correct degeneracies, class by class, are all extracted from the (unique) number 23, the order of the permutation group of 23 objects.
description: 9 pages
ГОРОД - "ЭТО ДРУГИЕ". ОБРАЗ ГОРОДА В ТВОРЧЕСТВЕ ДЖЕЙМСА ЭНСОРА
Creators: name: ЩЕРБАКОВА НАТАЛЬЯ
Publisher: name: Искусствознание
Year: 2020
Subjects: ДЖЕЙМС ЭНСОР
СИМВОЛИЗМ
ОБРАЗ ГОРОДА В ИСКУССТВЕ
ГОРОДСКАЯ ТОЛПА
ХУДОЖНИК И ТОЛПА
МАСКА

description: Название статьи обыгрывает знаменитое высказывание Жан-Поля Сартра «Ад - это другие» применительно к проблематике претворения образа города в литературе и изобразительном искусстве второй половины XIX века. Крупный мегаполис, переполненный «другими» - людьми, составляющими толпы, в которых отдельный человек теряет свою самость и становится безликой частью массы, был по определению враждебен личности художника. В настоящем исследовании автор анализирует творчество бельгийского символиста Джеймса Энсора, в чьих произведениях образ города имеет два обличия: город, как очищенное от человеческого присутствия рукотворное пространство, подчеркивающее красоту распростертого над ним «природного» неба, и город - как сосредоточение человеческих масс, поглощающих всякую индивидуальность.
Covariant theory of light in a dispersive medium
Creators: name: Partanen, Mikko
name: Tulkki, Jukka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The relativistic theory of the time- and position-dependent energy and momentum densities of light in glasses and other low-loss dispersive media, where different wavelengths of light propagate at different phase velocities, has remained a largely unsolved challenge until now. This is astonishing in view of the excellent theoretical understanding of Maxwell's equations and the abundant experimental measurements of optical phenomena in dispersive media. The challenge is related to the complexity of the interference patterns of partial waves and to the coupling of the field and medium dynamics by the optical force. In this work, we use the mass-polariton theory of light [Phys. Rev. A 96, 063834 (2017)] to derive the stress-energy-momentum (SEM) tensors of the field and the dispersive medium. Our starting point, the fundamental local conservation laws of energy and momentum, is close to that of a recent theoretical work on light in dispersive media by Philbin [Phys. Rev. A 83, 013823 (2011)], which however, excludes the power-conversion and force density source terms describing the coupling between the field and the medium. In the general inertial frame, we present the SEM tensors in terms of Lorentz scalars, four-vectors, and field tensors that reflect in a transparent way the Lorentz covariance of the theory. The SEM tensors of the field and the medium are symmetric, form-invariant, and in full accordance with the covariance principle of the special theory of relativity. The SEM tensor of the coupled field-medium state of light also has zero four-divergence. Therefore, light in a dispersive medium has well-defined four-momentum and rest frame. The volume integrals of the total energy and momentum densities of light agree with the model of mass-polariton quasiparticles having a nonzero rest mass. The predictions of our work are directly accessible to experiments.
Progenitors of Long Gamma-ray Bursts
Creators: name: Davies, Melvyn B.
name: Levan, Andrew J.
name: Larsson, Josefin
name: King, Andrew R.
name: Fruchter, Andrew S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Pinpointing the progenitors of long duration gamma-ray bursts (LGRBs) remains an extremely important question, although it is now clear that at least a fraction of LGRBs originate in the core collapse of massive stars in type Ic supernovae, the pathways to the production of these stars, and their initial masses, remain uncertain. Rotation is thought to be vital in the creation of LGRBs, and it is likely that black hole creation is also necessary. We suggest that these two constraints can be met if the GRB progenitors are very massive stars (>20 solar masses) and are formed in tight binary systems. Using simple models we compare the predictions of this scenario with observations and find that the location of GRBs on their host galaxies are suggestive of main-sequence masses in excess of 20 solar masses, while 50% of the known compact binary systems may have been sufficiently close to have had the necessary rotation rates for GRB creation. Thus, massive stars in compact binaries are a likely channel for at least some fraction of LGRBs.
description: To appear in "Gamma-ray bursts: Prospects for GLAST", AIP Conference proceedings 906, Editors M. Axelsson and F Ryde
Form Community Supported Agriculture Contract
Creators: name: Goeringer, Paul
name: Newhall, Ashley
name: Everhart, Sarah
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: form contract
pdf
word doc
community supported agriculture
CSA contract
model contract

description: This sample contract is intended to provide general information and should not be construed as providing legal advice.  This contract is designed to help community supported agriculture (CSA) operators in developing their own.  We have provided both a fillable pdf and a Word doc version of the model contract.
description: This is a sample contract developed by the Department of Agricultural and Resource Economics and the Agriculture Law Education Initiative to aid CSA operators in developing their own written contracts.
description: Department of Agricultural and Resource Economics, Maryland Department of Agriculture, Agriculture Law Education Initiative, Maryland Farm Bureau, and Mid-Atlantic Farm Credit
МУЗЕИ НОВОГО ИСКУССТВА В ЭПОХУ МЕЖВОЕННОГО ДВАДЦАТИЛЕТИЯ: ПОИСКИ ФОРМЫ И АРХИТЕКТУРНЫХ РЕШЕНИЙ
Creators: name: ПЕТУХОВ АЛЕКСЕЙ
Publisher: name: Искусствознание
Year: 2020
Subjects: МУЗЕЙ
ЧАСТНОЕ КОЛЛЕКЦИОНИРОВАНИЕ
КАРЛ-ЭРНСТ ОСТХАУС
ОСКАР РАЙНХАРТ
АЛЬБЕРТ БАРНС
ГМНЗИ

description: Если XIX столетие стало «веком музеев», то XX - веком музеев нового искусства. Стремление считать новаторские творческие направления органической частью истории искусства, определившееся после Первой мировой войны, вызвало к жизни сразу несколько ярких частных и государственных инициатив в этой области. Каждый новый замысел искал воплощения в архитектуре, которой приходилось решать порой необычные задачи и искать баланс между камерностью и публичностью, раскрепощенностью и официозом, динамизмом и фундаментальностью на новом уровне. В статье рассматриваются основные особенности и направления развития архитектурных замыслов музеев нового искусства от 1900-х до 1950-х годов.
Causal vs. Analytic constraints on anomalous quartic gauge couplings
Creators: name: Vecchi, Luca
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive one loop constraints on the anomalous quartic gauge couplings using a general non-forward dispersion relation for the elastic scattering amplitude of two longitudinally polarized vector bosons. We compare this result with another one derived by the assumption that the underlying theory satisfies the causality principle of Special Relativity and show that this latter is more constraining.
description: 4 pages, non forward scattering included, references added
"СОВРЕМЕННЫЙ СТИЛЬ" ИНТЕРЬЕРА В СОВЕТСКОЙ КРИТИКЕ 1960-Х ГОДОВ
Creators: name: ДЕЖУРКО АРТЁМ
Publisher: name: Искусствознание
Year: 2020
Subjects: ОТТЕПЕЛЬ
СОВРЕМЕННЫЙ СТИЛЬ
МОДЕРНИЗМ
ПРОПАГАНДА
ЭСТЕТИКА БЫТА

description: Статья представляет собой критический анализ текстов конца 1950-х - первой половины 1960-х годов о «современном стиле» в интерьере. Эти тексты мало отличаются от советской публицистики об искусстве 1930-1940-х годов, почти полностью заимствуя из нее идеологические аксиомы, риторические конструкции и понятийный аппарат (включая само понятие «современный стиль»). Автор показывает, что устройство этих текстов и цели, ради которых они создавались, были предопределены социальным положением художников и их отношениями с властью. Объединенные в творческие союзы и напрямую подчиненные аппарату управления, художники ощущали себя агентами власти по отношению к рядовым гражданам. Тексты, которые писала художественная бюрократия, воспринимались как властные указания, адресованные как самим художникам, так и широкой «аудитории» их искусства. Возникшая еще в 1930-е годы, с приходом «оттепели» эта структура сохранилась без изменений; представляется, что именно она помогла новому стилю сменить старый, вписав его в «контракт лояльности» между властью и обществом.
Experience in Applying of ISO 29110 to Agile Software Development
Creators: name: Waraporn Jirapanthong
Publisher: name: Faculty of Information Science and Technology, Mahanakorn University of Technology
Year: 2019
Subjects: ISO 29110
Agile
Scrum
Process Improvement
Software Quality Assurance

description: Journal of Information Science and Technology, 9, 1, 63-70
Deconfinement Transition of AdS/QCD at ${\cal O}(α'^3)$
Creators: name: Cai, Rong-Gen
name: Ohta, Nobuyoshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the confinement/deconfinement phase transition of holographic AdS/QCD models by using Ricci flat $AdS_5$ black holes up to ${\cal O}(α'^3)$, which corresponds to the $λ$ expansion correction in the dual field theory to $λ^{-3/2}$, where $λ$ is the 't Hooft coupling constant. We consider two cases: one is the hard-wall AdS/QCD model where a small radius region of the $AdS_5$ is removed; the other is the case where one of spatial coordinates for the $AdS_5$ space is compactified, resulting in Witten's QCD model in 2+1 dimensions. We find that in the hard-wall AdS/QCD model, the deconfinement temperature decreases when the $λ$ expansion corrections are taken into account, while in Witten's QCD model, the deconfinement transition always happens when the ratio of inverse temperature $β$ to the period $β_s$ of the compactified coordinate decreases to one, $β/β_s=1$, the same as the case without the ${\cal O}(α'^3)$ correction.
description: Latex, 14 pages; v2: the version to appear in PRD
Quasi-Dirac neutrinos in the linear seesaw model
Creators: name: Arbeláez, Carolina
name: Dib, Claudio
name: Monsálvez-Pozo, Kevin
name: Schmidt, Iván
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We implement a minimal linear seesaw model (LSM) for addressing the Quasi-Dirac (QD) behaviour of heavy neutrinos, focusing on the mass regime of $M_{N} \lesssim M_{W}$. Here we show that for relatively low neutrino masses, covering the few GeV range, the same-sign to opposite-sign dilepton ratio, $R_{\ell \ell}$, can be anywhere between 0 and 1, thus signaling a Quasi-Dirac regime. Particular values of $R_{\ell \ell}$ are controlled by the width of the QD neutrino and its mass splitting, the latter being equal to the light-neutrino mass $m_ν$ in the LSM scenario. The current upper bound on $m_{ν_{1}}$ together with the projected sensitivities of current and future $|U_{N \ell}|^{2}$ experimental measurements, set stringent constraints on our low-scale QD mass regime. Some experimental prospects of testing the model by LHC displaced vertex searches are also discussed.
description: This submission matches the published version. 23 pages, 4 figures
НОВОЕ О ВЫСТАВКЕ "0,10" И О ЕЕ ОРГАНИЗАТОРЕ ИВАНЕ ПУНИ
Creators: name: РОДИОНОВ АЛЕКСЕЙ
Publisher: name: Искусствознание
Year: 2020
Subjects: СУПРЕМАТИЗМ
"ЧЕРНЫЙ КВАДРАТ"
ЛЕКЦИЯ
МУЗЫКА
ПОЧТОВЫЙ ЧИНОВНИК
МАЛЕВИЧ
ПУНИ
БОГУСЛАВСКАЯ
ДОБЫЧИНА
МАТЮШИН
ЛУРЬЕ
БЕНУА

description: В статье публикуются новые архивные материалы о выставке «0,10». По чертежам домаАдамини с планировкой помещений Художественного бюро Добычиной реконструируется выставочная развеска. Раскрывается неизвестная страница биографии Ивана Пуни - его служба почтовым чиновником. Приводятся сведения о роли его отца (Альберта Пуни) и жены (Ксении Богуславской) в организации выставки.
ПЕТР СОКОЛОВ И АННА БОЕВА - ПРАКТИКИ "ФУТУРИСТИЧЕСКОЙ РЕВОЛЮЦИИ"
Creators: name: АЛЕКСЕЕВ ЕВГЕНИЙ
name: СМЕКАЛОВ ИГОРЬ
Publisher: name: Искусствознание
Year: 2020
Subjects: РУССКОЕ ИСКУССТВО 1910-1920-Х ГОДОВ
АВАНГАРД
СГХМ
П.Е. СОКОЛОВ
А.Ф. БОЕВА

description: На основе архивных материалов и воспоминаний современников реконструируются творческие биографии художников-авангардистов, реформаторов художественного образования П.Е. Соколова и А.Ф. Боевой. Подробно анализируется их деятельность по организации Свободных государственных художественных мастерских (СГХМ) в Воронеже, Перми, Екатеринбурге, Пензе. Конкретизируются этапы «футуристической революции» в России. В приложении представлена стенограмма обсуждения выставки обоих художников в МОСХ (14 декабря 1971) с воспоминаниями Боевой о достижениях и проблемах авангардистской реформы.
Quenched Magneto-association of Ultracold Feshbach Molecules
Creators: name: Waiblinger, Kirk
name: Williams, Jason R.
name: D'Incao, Jose P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study enhanced magneto-association of atoms into weakly-bound molecules near a Feshbach resonance using a quench preparatory stage. In anticipation of experiments with NASA's Cold Atom Laboratory aboard the International Space Station, we assume as a baseline a dual-species ($^{87}$Rb and $^{41}$K) gas in a parameter regime enabled by a microgravity environment. This includes subnanokelvin temperatures and dual-species gases at densities as low as 10$^8$/cm$^3$. Our studies indicate that, in such a regime, traditional magneto-association schemes are inefficient due to the weak coupling between atomic and molecular states at low-densities, thus requiring extremely long magnetic field sweeps. To address this issue we propose a modified scheme where atoms are quenched to unitarity before proceeding with magneto-association. This substantially improves molecular formation, allowing for up to $80\%$ efficiency, and within time-scales much shorter than those associated to atomic and molecular losses. We show that this scheme also applies at higher densities, therefore proving to be of interest to ground-based experiments as well.
description: 10 pages, 6 figures
Interplay of Anisotropy and Disorder in the Doping-Dependent Melting and Glass Transitions of Vortices in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$
Creators: name: Beidenkopf, H.
name: Verdene, T.
name: Myasoedov, Y.
name: Shtrikman, H.
name: Zeldov, E.
name: Rosenstein, B.
name: Li, D.
name: Tamegai, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the oxygen doping dependence of the equilibrium first-order melting and second-order glass transitions of vortices in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$. Doping affects both anisotropy and disorder. Anisotropy scaling is shown to collapse the melting lines only where thermal fluctuations are dominant. Yet, in the region where disorder breaks that scaling, the glass lines are still collapsed. A quantitative fit to melting and replica symmetry breaking lines of a 2D Ginzburg-Landau model further reveals that disorder amplitude weakens with doping, but to a lesser degree than thermal fluctuations, enhancing the relative role of disorder.
description: 4 pages, 4 figures
Effect of chlorination on positron binding to hydrocarbons: experiment and theory
Creators: name: Swann, A. R.
name: Gribakin, G. F.
name: Danielson, J. R.
name: Ghosh, S.
name: Natisin, M. R.
name: Surko, C. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Measured and calculated positron binding energies are presented for a range of hydrocarbons with up to six carbon atoms (viz., methane, acetylene, ethylene, ethane, propane, butane, and hexane) and their chlorinated counterparts. Both experiment and theory confirm the large effect that the chlorine atoms have on the positron binding energy and the strong sensitivity of the binding energy to the exact position of the chlorine atoms. The experimental binding energies have been obtained by measuring positron resonant annihilation using a trap-based positron beam. The calculations are performed using the previously developed model-correlation-potential method [A. R. Swann and G. F. Gribakin, J. Chem. Phys. 149, 244305 (2018)]. The overall trends are discussed with regard to the molecular polarizability, dipole moment, and geometry. Good agreement between theory and experiment is found, with the exception of the chlorinated ethylenes and chlorinated hexane. Calculations of the electron-positron annihilation rate in the bound state are also presented.
description: 15 pages, 11 figures
Supplementary Material for 'Nine Chapters of Analytic Number Theory'
Creators: name: Eberl, Manuel
Publisher: name: Zenodo
Year: 2019
Subjects: Isabelle
analytic number theory

description: A table connecting the theorems from Apostol's ‘Introduction to Analytic Number Theory’ to their formalised counterparts in Isabelle/HOL, and listing precisely which parts of the book have and have not been formalised.
Quarkyonic stars with isospin-flavor asymmetry
Creators: name: Margueron, J.
name: Hansen, H.
name: Proust, P.
name: Chanfray, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We suggest an extension to isospin asymmetric matter of the quarkyonic model from McLerran and Reddy. This extension allows us to construct the $β$-equilibrium between quarks, nucleons and leptons. The concept of the quarkyonic matter originates from the large number of color limit for which nucleons are the correct degrees of freedom near the Fermi surface -- reflecting the confining forces -- while deep inside the Fermi sea quarks naturally appear. In isospin asymmetric matter, we suggest that this new concept can be implemented within a global isoscalar relation between the shell gaps differentiating the nucleon and the quark sectors. In addition, we impose the conservation of the isospin-flavor asymmetry in the nucleon and the quark phases. Within this model, several quarkyonic stars are constructed on top of the SLy4 model for the nucleon sector, producing a bump in the sound speed, which implies that quarkyonic stars are systematically bigger and have a larger maximum mass than the associated neutron stars. They also predict lower proton fraction at $β$-equilibrium, which potentially quenches fast cooling in massive compact stars.
description: 11 pages, 9 figures
[Mu] SR measurement of the magnetic penetration depth in high-TC superconductors
Creators: name: Riseman, Tanya Maria
Publisher: name: University of British Columbia
Year: 2010

description: The effect of the magnetic field inhomogeneity in the mixed state of isotropic and anisotropic type II superconductors on the muon polarization in Muon Spin Rotation (μSR) experiments is explored in this thesis. Calculations of the penetration depth from the second and third moments of the muon precession frequency distribution (completely analogous to the NMR Redfield lineshape) are discussed critically for oriented and un-oriented powder samples. In addition, a method of fitting the frequency distribution directly with models which take into account the variability of the penetration depth and the applied field as well as displacements of the flux tubes from their regular positions in the flux lattice is presented. This method allows the penetration depth to be fitted directly from the frequency distribution. The method is demonstrated with μSR data on an unoriented sample of YBa₂Cu₃O₇, using a model of a highly anisotropic superconductor, and on an oriented sample of YBa₂Cu₃O₇, using the isotropic Abrikosov theory, giving a hard-axis penetration depth in YBa₂Cu₃O₇ of approximately 1000 ± 400 Å.
Espresso and Stochastic Acceleration of Ultra-high-energy Cosmic Rays in Relativistic Jets
Creators: name: Mbarek, Rostom
name: Caprioli, Damiano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the espresso scenario, ultra-high-energy (UHE) cosmic rays (CRs) are produced via a one-shot reacceleration of galactic-like CRs in the relativistic jets of active galactic nuclei, independently of the scattering rate dictated by magnetic fluctuations. In Mbarek & Caprioli (2019), we traced test-particle CRs in high-resolution magnetohyrodynamic (MHD) jet simulations and found that the associated spectral slope, chemical composition, and anisotropy are consistent with UHECR phenomenology. In this work, we extend such an analysis by including sub-grid pitch-angle scattering to model small-scale magnetic turbulence that cannot be resolved by MHD simulations. We find that a large scattering rate unlocks stochastic acceleration and fosters the energization of lower-energy CRs, which eventually leads to harder UHECR spectra. Yet, the particles that achieve the highest energies (up to the Hillas limit) are invariably produced by espresso acceleration and their spectrum is independent of the assumed sub-grid scattering rate.
description: 12 pages, 9 figures; Accepted to ApJ