cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Творческая мобилизация (из опыта проведения x Всероссийского керамического симпозиума «Агитфарфор XXI»)
Creators: name: Краснова Е. А.
name: Петунина Ю. М.
Publisher: name: Изобразительное искусство Урала, Сибири и Дальнего Востока
Year: 2020
Subjects: АГИТФАРФОР
НАДГЛАЗУРНАЯ РОСПИСЬ
СИМПОЗИУМ
СГИИ ИМЕНИ Д. ХВОРОСТОВСКОГО
ХУДОЖЕСТВЕННАЯ КЕРАМИКА
ФАРФОР
СИБИРЬ
AGITPROP
OVERGLAZE PAINTING
CERAMIC SYMPOSIUM
SOVIET AGITATION PORCELAIN
PORCELAIN
SIBERIAN STATE ACADEMY OF ARTS NAMED AFTER DMITRI KHVOROSTOVSKY
SIBERIA

description: В статье говорится о практическом опыте проведения X Всероссийского керамического симпозиума «АГИТФАРФОР XXI», посвященного 100-летию агитационного фарфора в России. Основная часть мероприятий симпозиума прошла на базе Сибирского государственного института искусств имени Д. Хворостовского с 27 февраля по 12 марта 2020 года. Результаты симпозиума «АГИТФАРФОР XXI» были представлены на одноимённой выставке в музее художника Б. Я. Ряузова с 13 марта 2020 г.
Тема воины и мира в произведениях художников ХХ столетия из собрания Дальневосточного художественного музея
Creators: name: Козлова Л. Г.
Publisher: name: Изобразительное искусство Урала, Сибири и Дальнего Востока
Year: 2020
Subjects: ДАЛЬНЕВОСТОЧНЫЙ ХУДОЖЕСТВЕННЫЙ МУЗЕЙ
ХУДОЖНИКИ-ФРОНТОВИКИ
КОНЦЕПЦИЯ ВЫСТАВКИ
FAR EASTERN ART MUSEUM
THE VETERAN ARTISTS
THE CONCEPT OF THE EXHIBITION

description: В статье рассматривается проект Дальневосточного художественного музея, посвященный 75-летию Победы в Великой Отечественной войне. Рассматриваются произведения дальневосточных художников в общем контексте развития советского искусства. Сопоставляются категории «война» и «мир». Рассматриваются произведения художников участников Великой Отечественной войны и концепция выставки.
ВНЕДРЕНИЕ КОМПЛЕКСА «ГОТОВ К ТРУДУ И ОБОРОНЕ» НА ТЕРРИТОРИИ МУНИЦИПАЛЬНОГО ОБРАЗОВАНИЯ
Creators: name: Мыслина О.В.
name: Костина С.Н.
Publisher: name: Кронос
Year: 2021
Subjects: ВСЕРОССИЙСКИЙ ФИЗКУЛЬТУРНО-СПОРТИВНЫЙ КОМПЛЕКС «ГОТОВ К ТРУДУ И ОБОРОНЕ» (ГТО)
ФИЗИЧЕСКАЯ КУЛЬТУРА
СПОРТ
МУНИЦИПАЛЬНОЕ УПРАВЛЕНИЕ
МУНИЦИПАЛЬНОЕ ОБРАЗОВАНИЕ
ALL-RUSSIAN PHYSICAL CULTURE AND SPORTS COMPLEX " READY FOR LABOR AND DEFENSE "(TRP)
PHYSICAL CULTURE
SPORTS
MUNICIPAL ADMINISTRATION
MUNICIPAL FORMATION

description: Ориентир на здоровый образ жизни, занятия физической культурой и спортом стало одной из основных задач современной России. Здоровье нации, развитие массового спорта дали ориентир для возрождения Всероссийского физкультурно-спортивного комплекса «Готов к труду и обороне» (ГТО). Комплекс требует выполнения установленных нормативов по трем уровням трудности: золотой, серебряный и бронзовый знак отличия «Готов к труду и обороне». Каждый гражданин от 6 до 70 лет и старше в праве проверить силы и присоединиться к Всероссийскому движению. Внедрение комплекса ГТО в трудовые коллективы, в образовательные учреждения предполагают подготовительную работу, которая включает в себя разработанный приемлемый комплекс упражнений состоящий из нескольких вариантов сложности, что позволит подготовить организм к сдаче нормативов. В связи с этим возрастает необходимость внедрение системы сдачи норм ГТО в дошкольные учреждения.
ВОЗМОЖНОСТИ ПЕРЕХОДА СЕКТОРА УСЛУГ НА АЛЬТЕРНАТИВНУЮ ЭНЕРГЕТИКУ
Creators: name: Доленина Ольга Евгеньевна
name: Захарова Ангелина Артуровна
Publisher: name: Кронос
Year: 2021
Subjects: АЛЬТЕРНАТИВНАЯ ЭНЕРГИЯ
ПЕРВИЧНАЯ ЭНЕРГИЯ
СЕКТОР УСЛУГ
ТУРИЗМ
КОНЕЧНОЕ ПОТРЕБЛЕНИЕ ЭНЕРГИИ
ALTERNATIVE ENERGY
PRIMARY ENERGY
SERVICE SECTOR
TOURISM
FINAL ENERGY CONSUMPTION

description: В данной статье исследуются возможности отказа сектора услуг, в том числе и туризма, от использования традиционной энергетики и переход на альтернативные источники, а также связанные с этим вопросы производства и потребления. При экономическом анализе структур экономик государств была выделена группа стран, где максимальная доля приходится на сферу услуг и, в том числе, на туризм. В работе анализируются ситуация в следующих странах ЕС: Португалия, Испания, Италия, Греция. Проводится анализ данных из статистических баз данных (Евростат, WTTC, EIA) с использованием таких показателей, как темпы роста туризма, его сектор в ВВП стран, динамика выбросов CO2, производство первичной энергии, ее процент производимый альтернативными источниками энергетиками, а также ее потребление сектором услуг данных стран.
AI Certification: Advancing Ethical Practice by Reducing Information Asymmetries
Creators: name: Cihon, Peter
name: Kleinaltenkamp, Moritz J.
name: Schuett, Jonas
name: Baum, Seth D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: As artificial intelligence (AI) systems are increasingly deployed, principles for ethical AI are also proliferating. Certification offers a method to both incentivize adoption of these principles and substantiate that they have been implemented in practice. This paper draws from management literature on certification and reviews current AI certification programs and proposals. Successful programs rely on both emerging technical methods and specific design considerations. In order to avoid two common failures of certification, program designs should ensure that the symbol of the certification is substantially implemented in practice and that the program achieves its stated goals. The review indicates that the field currently focuses on self-certification and third-party certification of systems, individuals, and organizations - to the exclusion of process management certifications. Additionally, the paper considers prospects for future AI certification programs. Ongoing changes in AI technology suggest that AI certification regimes should be designed to emphasize governance criteria of enduring value, such as ethics training for AI developers, and to adjust technical criteria as the technology changes. Overall, certification can play a valuable mix in the portfolio of AI governance tools.
Distinct Distances in Graph Drawings
Creators: name: Carmi, Paz
name: Dujmović, Vida
name: Morin, Pat
name: Wood, David R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The \emph{distance-number} of a graph $G$ is the minimum number of distinct edge-lengths over all straight-line drawings of $G$ in the plane. This definition generalises many well-known concepts in combinatorial geometry. We consider the distance-number of trees, graphs with no $K^-_4$-minor, complete bipartite graphs, complete graphs, and cartesian products. Our main results concern the distance-number of graphs with bounded degree. We prove that $n$-vertex graphs with bounded maximum degree and bounded treewidth have distance-number in $\mathcal{O}(\log n)$. To conclude such a logarithmic upper bound, both the degree and the treewidth need to be bounded. In particular, we construct graphs with treewidth 2 and polynomial distance-number. Similarly, we prove that there exist graphs with maximum degree 5 and arbitrarily large distance-number. Moreover, as $Δ$ increases the existential lower bound on the distance-number of $Δ$-regular graphs tends to $Ω(n^{0.864138})$.
In dialogo con Klaus Hemmerle
Creators: name: Meazza, Carmelo
Publisher: name: Nuovo Giornale di Filosofia della Religione
Year: 2021

description: In un testo della prima maturità di Klaus Hemmerle, Il sacro e il pensiero, il sacro deno- mina un mostrar-si come manifestatività. Per Hemmerle si perderebbe qualcosa di essenziale se una filosofia del sacro non arrivasse ad una certa conversione fenomenologica e, allo stesso tempo si perderebbe qualcosa di essenziale se l’oggetto della fenomenologia non avesse a che fare con il sacro. Nel sacro si deve, infatti, rivelare il nesso tra datità e alterità che la fenomenologia scopre nella sua radicalità, quando respinge il compromesso con un certo idealismo. In tale momento l’intenzionalità si apre alla datità del dato o all’eccedere del pensato sul pensare. La pensabilità indica una manifestatività la cui evidenza implica la simultaneità del darsi e del chi a cui si dà. Il sacro, inoltre, non rimanda a un ritrarsi dell’essere dall’ente e non ha nulla a che fare con una differenza ontologica. La scena di questa manifestatività è la luminosità. Nelle Tesi di ontologia trinitaria l’obiettivo diventa quello di recuperare la non differenza di essere ed ente. La filosofia caratterizzata dalla dif- ferenza sarebbe estranea all’intelligenza teologica. Questa non differenza non dice banalmente l’identità, e nep- pure il rimando dialettico di identità e differenza. Questo evento rivela l’essere in-Dio dell’ente e non un dio al di là dell’essere. Questo recupero di una ontologia nella luce di una teologia e di una teologia nella precompren- sione di una ontologia apre e indica nuove vie per il pensiero del nostro tempo.
description: Nuovo Giornale di Filosofia della Religione, N. 11 Settembre - Dicembre 2019
Study of a confined Hydrogen-like atom by the Asymptotic Iteration Method
Creators: name: Ciftci, Hakan
name: Hall, Richard L.
name: Saad, Nasser
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The asymptotic iteration method (AIM) is used to obtain both special exact solutions and general approximate solutions for a Hydrogen-like atom confined in a spherical box of arbitrary radius R. Critical box radii, at which states are no longer bound, are also calculated. The results are compared with those in the literature.
description: 10 pages
Essays on Macroeconomic Policy
Creators: name: Zhang, Xuege
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 140212 Macroeconomics (incl. Monetary and Fiscal Theory)
subject: FOS: Economics and business

description: What is the role of the government in a market economy? Chapter 1 studies a market failure. I document a fact that in the United States over the past forty years, new business formation has concentrated in large cities. I develop a continuum geographic model where business formations endogenously occur in heterogeneous cities based on ex ante firm productivity. I show that changes in externalities can generate the spatial firm dynamism. Chapter 2 (joint with Ali Shourideh) studies fiscal policy and reform. We explore the aggregate and distributional effects of tax competition. We develop a theory to analyze how interjurisdictional tax competition affects productivity and inequality by distorting firms’ production decisions. Our results suggest that moving toward a coordinated fiscal regime boosts aggregate and local-level productivity. Moreover, tax coordination is more favorable compared to tax competition when wage elasticity is low or when there are more superstar firms. Chapter 3 studies industrial policy and structural change. I analyze the macroeconomic consequences of place-based industrial policies in the presence of production networks and external economies of scale. I document novel empirical evidence on the spillover effects of a specific place-based industrial policy in China. To rationalize the facts, I develop a quantitative general equilibrium trade model incorporating policies, production networks, trade, and agglomeration externalities. I take the model to Chinese data, designing a new approach that combines sorting and the exact-hat algebra in international trade theories. Results show higher externalities in targeted sectors and aggregate welfare gains through strengthening local sectoral competitiveness. Chapter 4 (joint with Natasha Che) studies international trade and growth. We design an algo-based export recommendation system using a collaborative filtering method to study the relationship between export structure and growth performance. Our system produces export portfolio for more than 190 economies spanning over 30 years. We find that economies whose export structures are more aligned with the algorithm-recommended export structures achieve better growth performance. Our study provides empirical evidence on export diversification potential and enlights further analyses on comparative advantages. Disclaimer: The views expressed in this dissertation are those of the author(s) and do not necessarily represent the views of the International Monetary Fund (IMF), its Executive Board, or IMF management.
Romano Guardini e il paradigma della “fede nuda”
Creators: name: Zucal, Silvano
Publisher: name: Nuovo Giornale di Filosofia della Religione
Year: 2021

description: Un tratto davvero originale della proposta filosofica di Romano Guardini è la sua concezione dialettica del rapporto tra religione e fede. Una dialettica “polare” nell’ottica della sua distinzione tra le due tensioni dialettiche della polarità (Gegensatz) e della alternatività incomprimibile (Widerspruch). Nel contributo, dopo una ricostruzione della visione guardiniana della genesi della religione, si analizza nelle varie tappe storiche la modalità con cui la dialettica religione-fede sia venuta realizzandosi secondo la lettura che ne fa il pensatore italo-tedesco. Ci si concentrerà soprattutto sul post-moderno che, per Guardini, è l’epoca della dialettica polare spezzata tra religione e fede. Questo è dovuto al fatto che nel post-moderno si assiste a una vera e propria “eclissi del religioso”, a un fare anti-iconico privo di immagini autentiche, a un trionfo dell’artificiale con la correlata espulsione del mistero. Un tempo escatologico con una “fede nuda” e non più sorretta dal religioso.
description: Nuovo Giornale di Filosofia della Religione, N. 11 Settembre - Dicembre 2019
การพัฒนาเครื่องอัดเม็ดปุ๋ยอินทรีย์และการจัดการผลิตปุ๋ยในระดับชุมชน
Creators: name: ร่มพฤกษ์ เพิ่มเกียรติศักดิ์
name: สมถวิล วัลลิสุต
name: พงศ์เทพ อันตะริกานนท์
name: รังสิต สุวรรณมรรคา
Publisher: name: สมาคมนักวิจัย
Year: 2557
Subjects: เครื่องอัดเม็ดปุ๋ย,แบบลูกกลิ้งแนวตั้งประสิทธิภาพสูง,ปุ๋ยอินทรีย์อัดเม็ด,มาตรฐานต้นทุนต่ำ

description: 3, 19, วารสารสมาคมนักวิจัย
แนวปฏิบัติที่ดีในการถ่ายทอดคุณธรรมของครูไทย
Creators: name: วิชุดา กิจธรธรรม
name: พรทิพย์ อันทิวโรทัย
name: พิชชาดา สุทธิแป้น
Publisher: name: ศูนย์คุณธรรม (องค์การมหาชน)
Year: 2013
Subjects: คุณธรรมของครู,แนวปฏิบัติที่ดี,การถ่ายทอด,สถาบันการผลิตครู

description: 1, 2, วารสารวิชาการคุณธรรมความดี
Economic efficiency losses arising from subsidized intercity rail passenger movements in Canada
Creators: name: Andriulaitis, Robert J.
Publisher: name: University of British Columbia
Year: 2010

description: While all four of the main modes of intercity passenger transportation in Canada (air, automobile, bus, and rail) are currently subsidized, rail recovers from its users a considerably lesser portion of the total cost of service than any of the other three modes. This thesis estimates the effect this imbalance has on the passenger network in two ways: i) in physical terms -- the change in modal volumes given full-economic-cost pricing and the implications this has on network configuration; and ii) in financial terms -- the dollar cost of the economic efficiency losses suffered due to non-full-economic-cost pricing. The first element is estimated by calculating modal fares based on full cost recovery for 52 intercity routes between Winnipeg and Quebec City. The changes represent from the actual fares charged is translated into volume changes based on a set of demand elasticities developed for this thesis. The second element is estimated for these same 52 routes using the standard deadweight loss triangle methodology which measures the loss in aggregate social welfare that exists when non-optimal prices are being charged. This result is then extrapolated to a national level. The calculations show that given full-economic-cost pricing, air volumes would increase by 4.76%, automobile volumes by 0.32%, and bus volumes by 3.47%. Rail volumes would decline by 56.67%. While the changes are marginal for the non-rail modes and would not likely result in any changes to the network, rail would cease to be a viable mode on many routes. The economic efficiency distortion caused by the failure to charge fares based on full economic costs amounted to about $130 million in 1986. This cost, along with the subsidy itself, is what the social and political benefits of continued VIA Rail subsidization must be compared to, not simply the amount of the subsidy, as is currently done. This estimate of deadweight loss ignores positive tourism, energy, safety, and environmental externalities of rail, and thus overestimates somewhat the detrimental effect of VIA rail subsidies.
Physical and Spectral Characteristics of the T8 and Later-Type Dwarfs
Creators: name: Leggett, S. K.
name: Marley, M. S.
name: Freedman, R.
name: Saumon, D.
name: Liu, Michael C.
name: Geballe, T. R.
name: Golimowski, D. A.
name: Stephens, D. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use new and published near-IR spectra, with synthetic spectra, to derive physical properties of three of the latest-type T dwarfs. A new R~1700 spectrum of the T7.5 dwarf HD 3651B, with existing data, allows a detailed comparison to the well-studied and very similar dwarf, Gl 570D. We find that HD 3651B has both higher gravity and metallicity than Gl 570D, with Teff=820-830K, log g= 5.4-5.5, [m/H]= +0.2 and Kzz=10^4cm^2/s. Its age is 8-12 Gyr and its implied mass is 60-70 M_Jup. We perform a similar analyis of the T8 and T7.5 dwarfs 2MASS J09393548-2448279 and 2MASS J11145133-2618235 using published data, comparing them to the well-studied T8, 2MASS J04151954-0935066. We find that the two dwarfs have the same Teff as the reference dwarf, and similar gravities, but lower metallicities. The parameters are Teff=725-775K and [m/H]= -0.3; log g=5.3-5.45 for 2MASS J09393548-2448279 and log g=5.0-5.3 for 2MASS J11145133- 261823. The age and mass are ~10Gyr and 60M_Jup for 2MASS J09393548-2448279, and ~5 Gyr and 40M_Jup for 2MASS J11145133-261823. A serious limitation is the incompleteness of the line lists of CH4 and NH3 at lambda <1.7um. Spectra of Saturn and Jupiter, and of laboratory CH4 and NH3 gas, suggest that NH3 features in the Y- and J-bands may be useful as indicators of the next cooler spectral type, and not features in the H- and K-bands as previously thought. However large uncertainties remain, as the abundance of NH3 is likely to be significantly below the chemical equilibrium value, and inclusion of laboratory NH3 opacities predicts band shapes that are discrepant with existing data. It is possible that the T spectral class will have to be extended to low temperatures around 400K, when water clouds condense in the atmosphere [abridged].
description: 34 pages including 10 figures and two tables; accepted for publication in the Astrophysical Journal
Observing Supernova Neutrino Light Curves with Super-Kamiokande. II. Impact of the Nuclear Equation of State
Creators: name: Nakazato, Ken'ichiro
name: Nakanishi, Fumi
name: Harada, Masayuki
name: Koshio, Yusuke
name: Suwa, Yudai
name: Sumiyoshi, Kohsuke
name: Harada, Akira
name: Mori, Masamitsu
name: Wendell, Roger A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The late-time evolution of the neutrino event rate from supernovae is evaluated for Super-Kamiokande using simulated results of proto-neutron star (PNS) cooling. In the present work we extend the result of Suwa et al. (2019) [arXiv:1904.09996], which studied the dependence on the PNS mass, but focus on the impact of the nuclear equation of state (EOS). We find that the neutrino event rate depends on both the high-density and low-density EOS, where the former determines the radius of the PNS and the latter affects its surface temperature. Based on the present evaluation of the neutrino event rate we propose a new analysis method to extract the time variability of the neutrino average energy taking into account the statistical error in the observation.
description: 22 pages, 15 figures, accepted for publication in ApJ. The supernova neutrino data computed in this study are available at https://doi.org/10.5281/zenodo.5778223
การพัฒนาแบบประเมินคุณธรรมเชิงวิชาชีพของนิสิตทันตแพทย์: การปรับข้ามวัฒนธรรม
Creators: name: ชมพูนุท อุยสุย
name: น้อมจิต วิทยพูม
name: นันทรัตน์ วินิจ
name: ชาญชัย โห้สงวน
Publisher: name: ศูนย์คุณธรรม (องค์การมหาชน)
Year: 2013
Subjects: แบบประเมินคุณธรรม,แบบประเมินคุณธรรมเชิงวิชาชีพ,ความเป็นวิชาชีพ,ความเที่ยง,ความตรง,นิสิตทันตแพทย์,การปรับข้ามวัฒนธรรม

description: 1, 2, วารสารวิชาการคุณธรรมความดี
ИЗУЧЕНИЕ ВЕЛИЧИНЫ «ПЛОЩАДЬ» В НАЧАЛЬНЫХ КЛАССАХ
Creators: name: Гребенникова Надежда Лукьяновна
name: Ишикаева Нурзиля Ильдаровна
name: Кутлубаева Альбина Рамилевна
name: Хабибуллина Илюза Венеровна
Publisher: name: Кронос
Year: 2021
Subjects: ВЕЛИЧИНА «ПЛОЩАДЬ»
ОБУЧЕНИЕ МАТЕМАТИКЕ
МЕТОДИЧЕСКИЕ ПРИЕМЫ ИЗУЧЕНИЯ ВЕЛИЧИНЫ «ПЛОЩАДЬ»
НАЧАЛЬНАЯ ШКОЛА
МАТЕМАТИЧЕСКИЕ СКАЗКИ
МЛАДШИЕ ШКОЛЬНИКИ
THE VALUE OF «AREA»
TEACHING MATHEMATICS
METHODOLOGICAL TECHNIQUES FOR STUDYING THE VALUE OF «AREA»
PRIMARY SCHOOL
MATHEMATICAL FAIRY TALES
PRIMARY SCHOOL CHILDREN

description: В статье освещается вопрос о сложности изучения величины «площадь» в начальной школе. Рассматриваются эффективные способы организации работы над данной величиной на уроках математики. Приводятся примеры игр, языковой материал в виде математических сказок и рассказов, текстовые задачи, которые способствуют формированию у младших школьников осознанных представлений о величине «площадь» и способах её измерения.
Chandra evidence for AGN feedback in the spiral galaxy NGC 6764
Creators: name: Croston, J. H.
name: Hardcastle, M. J.
name: Kharb, P.
name: Kraft, R. P.
name: Hota, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the Chandra detection of X-ray emission spatially coincident with the kpc-scale radio bubbles in the nearby (D_L ~ 31 Mpc) AGN-starburst galaxy NGC 6764. The X-ray emission originates in hot gas (kT ~ 0.75 keV), which may either be contained within the radio bubbles, or in a shell of hot gas surrounding them. We consider three models for the origin of the hot gas: (1) a starburst-driven galactic wind, (2) shocked gas associated with the expanding radio bubbles, and (3) gas heated and entrained into the bubbles by jet/ISM interactions in the inner AGN outflow. We rule out a galactic wind based on significant differences from known galactic wind systems. The tight correspondence between the brightest X-ray emission and the radio emission in the inner outflow from the Seyfert nucleus, as well as a correlation between X-ray and radio spectral features suggestive of shocks and particle acceleration, lead us to favour the third model; however, we cannot firmly rule out a model in which the bubbles are driving large-scale shocks into the galaxy ISM. In either AGN-driven heating scenario, the total energy stored in the hot gas is high, ~10^56 ergs, comparable to the energetic impact of low-power radio galaxies such as Centaurus A, and will have a dramatic impact on the galaxy and its surroundings.
description: 8 pages, 5 figures. Accepted for publication in ApJ
HypExp 2, Expanding Hypergeometric Functions about Half-Integer Parameters
Creators: name: Huber, T.
name: Maître, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we describe a new algorithm for the expansion of hypergeometric functions about half-integer parameters. The implementation of this algorithm for certain classes of hypergeometric functions in the already existing Mathematica package HypExp is described. Examples of applications in Feynman diagrams with up to four loops are given.
description: 38 pages, 7 figures. Minor changes. Version to appear in CPC. The package can be downloaded from http://krone.physik.unizh.ch/~maitreda/HypExp/
Crystal-symmetry-based selection rules for anharmonic phonon-phonon scattering from a group theory formalism
Creators: name: Yang, Runqing
name: Yue, Shengying
name: Quan, Yujie
name: Liao, Bolin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Anharmonic phonon-phonon scattering serves a critical role in heat conduction in solids. Previous studies have identified many selection rules for possible phonon-phonon scattering channels imposed by phonon energy and momentum conservation conditions and crystal symmetry. However, the crystal-symmetry-based selection rules have mostly been \textit{ad hoc} so far in selected materials, and a general formalism that can summarize known selection rules and lead to new ones in any given crystal is still lacking. In this work, we apply a general formalism for symmetry-based scattering selection rules based on the group theory to anharmonic phonon-phonon scatterings, which can reproduce known selection rules and guide the discovery of new selection rules between phonon branches imposed by the crystal symmetry. We apply this formalism to analyze the phonon-phonon scattering selection rules imposed by the in-plane symmetry of graphene, and demonstrate the significant impact of symmetry-breaking strain on the lattice thermal conductivity. Our work quantifies the critical influence of the crystal symmetry on the lattice thermal conductivity in solids and suggests routes to engineer heat conduction by tuning the crystal symmetry.
description: 26 pages, 9 figures. Comments are welcome
Possible two-component spin-singlet pairings in Sr2RuO4
Creators: name: Zhang, San-Jun
name: Wang, Da
name: Wang, Qiang-Hua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent experiments suggest a multi-component pairing function in Sr2RuO4, which appears to be inconsistent with the absence of an apparent cusp in the transition temperature (Tc) as a function of the uniaxial strain. We show, however, that the theoretical cusp in Tc for a multi-component pairing can be easily smeared out by the spatial inhomogeneity of strain, and the experimental data can be reproduced qualitatively by a percolation model. This shed new light on multi-component pairings. We then perform a thorough group-theoretical classification of the pairing functions, taking the spin-orbit coupling into account. We list all 13 types of two-component spin-singlet pairing functions, with 8 of them belonging to the Eg representation. In particular, we find two types of intra-orbital pairings in the Eg representation ($k_xk_z$, $k_yk_z$) are favorable in view of most existing experiments.
description: 10 pages, 4 figures, 3 tables
Lack of monotonicity in spin glass correlation functions
Creators: name: Contucci, Pierluigi
name: Unguendoli, Francesco
name: Vernia, Cecilia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the response of a spin glass system with respect to the rescaling of its interaction random variables and investigate numerically the behaviour of the correlation functions with respect to the volume. While for a ferromagnet the local energy correlation functions increase monotonically with the scale and, by consequence, with respect to the volume of the system we find that in a general spin glass model those monotonicities are violated.
description: 9 pages, 2 figures
SuperWASP-North Extrasolar Planet Candidates. Candidates from Fields 17hr < RA < 18hr
Creators: name: Lister, T. A.
name: West, R. G.
name: Wilson, D. M.
name: Cameron, A. Collier
name: Clarkson, W. I.
name: Street, R. A.
name: Enoch, B.
name: Parley, N. R.
name: Christian, D. J.
name: Kane, S. R.
name: Evans, A.
name: Fitzsimmons, A.
name: Haswell, C. A.
name: Hellier, C.
name: Hodgkin, S. T.
name: Horne, Keith
name: Irwin, J.
name: Keenan, F. P.
name: Norton, A. J.
name: Osborne, J.
name: Pollacco, D. L.
name: Ryans, R.
name: Skillen, I.
name: Wheatley, P. J.
name: Barnes, J. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed photometric observations of nearly 7 million stars with 8 < V < 15 with the SuperWASP-North instrument from La Palma between 2004 May-September. Fields in the RA range 17-18hr, yielding over 185,000 stars with sufficient quality data, have been searched for transits using a modified box least-squares (BLS) algorithm. We find a total of 58 initial transiting candidates which have high S/N in the BLS, show multiple transit-like dips and have passed visual inspection. Analysis of the blending and inferred planetary radii for these candidates leaves a total of 7 transiting planet candidates which pass all the tests plus 4 which pass the majority. We discuss the derived parameters for these candidates and their properties and comment on the implications for future transit searches.
description: 17 pages, 24 figures, accepted by MNRAS
Adaptation of the Bridgman anvil cell to liquid pressure mediums
Creators: name: Ruetschi, A. -S.
name: Jaccard, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The advantage of Bridgman anvil pressure cells is their wide pressure range and the large number of wires which can be introduced into the pressure chamber. In these pressure cells soft solid pressure mediums like steatite are used. We have succeeded in adapting the Bridgman cell to liquid pressure mediums. With this breakthrough it is now possible to measure in very good hydrostatic pressure conditions up to 7 GPa, which is about twice the pressure attainable in piston-cylinder cells. The pressure gradient in the cell, estimated from the superconducting transition width of lead, is reduced by a factor of five in the liquid medium with respect to steatite. By the use of non-magnetic materials for the anvils and the clamp and due to the small dimensions of the latter, our device is specially suitable for magneto-transport measurements in dilution fridges. This pressure cell has been developed to measure very fragile and brittle samples like organic conductors. Resistivity measurements of (TMTTF)2BF4 performed in a solid and liquid pressure medium demonstrate the necessity of hydrostatic pressure conditions for the study of organic conductors at high pressures.
description: 12 pages, 7 figures. Published in Review of Scientific Instruments
Violation of the Equipartition Theorem for Thermally Insulated Clusters of Atoms with Different Masses
Creators: name: Openov, L. A.
name: Podlivaev, A. I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An expression is derived for calculating microcanonical-ensemble averages of the kinetic energies of atoms of different types in clusters isolated from the environment. This expression is a natural generalization of the solution to the problem of hard spheres with different masses to a system with a many-particle interatomic interaction potential. The dynamics of a C8H8 cubane is simulated numerically. The data on the numerical simulation confirm the validity of the results obtained.
description: 15 pages, 2 figures
Ionization Front Instabilities in Primordial H II Regions
Creators: name: Whalen, Daniel
name: Norman, Michael L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Radiative cooling by metals in shocked gas mediates the formation of ionization front instabilities in the galaxy today that are responsible for a variety of phenomena in the interstellar medium, from the morphologies of nebulae to triggered star formation in molecular clouds. An important question in early reionization and chemical enrichment of the intergalactic medium is whether such instabilities arose in the H II regions of the first stars and primeval galaxies, which were devoid of metals. We present three-dimensional numerical simulations that reveal both shadow and thin-shell instabilities readily formed in primordial gas. We find that the hard UV spectra of Population III stars broadened primordial ionization fronts, causing H2 formation capable of inciting violent thin- shell instabilities in D-type fronts, even in the presence of intense Lyman-Werner flux. The high post- front gas temperatures associated with He ionization sustained and exacerbated shadow instabilities, unaided by molecular hydrogen cooling. Our models indicate that metals eclipsed H2 cooling in I-front instabilities at modest concentrations, from 0.001- 0.01 solar. We conclude that ionization front instabilities were prominent in the H II regions of the first stars and galaxies, influencing the escape of ionizing radiation and metals into the early universe.
description: 13 pages, 11 figures, accepted by ApJ with minor revisions
Isotropization in the approach to big rip singularities for Cardassian models
Creators: name: Berndt, Nikolaus
name: Rendall, Alan D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cardassian models are an alternative to general relativity which have been proposed as an approach to explaining accelerated cosmic expansion while avoiding directly introducing dark energy. They are generally formulated only in the homogeneous and isotropic case. In this paper an extension of the usual formulation to general spatially homogeneous geometries is given. A characteristic feature of many classes of Cardassian models is the occurrence of big rip singularities where the scale factor tends to infinity after a finite time. It is shown that big rip singularities are also widespread in more general homogeneous cases. It is also shown that there is isotropization in the approach to a big rip singularity which bears a strong resemblance to the late-time isotropization observed in cosmological spacetimes which accelerate forever in the future.
description: 17 pages, 2 figures
Absorption cross section of regular black holes in scalar-tensor conformal gravity
Creators: name: Li, Yang
name: Miao, Yan-Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In terms of the complex angular momentum method, we compute the absorption cross section by analyzing a massless test scalar field around conformally related black holes. At first, we investigate circular null geodesics and thereby prove a precondition for calculating the absorption cross section in the context of conformally related black holes. Then we use the WKB approximation method to derive the analytic expression of Regge frequency and the oscillation part of absorption cross sections. We find that this oscillation part depends on the scale factor of conformal transformations. By taking the conformally related Schwarzschild-Tangherlini black hole as an example, we show that this regular black hole has substantially distinctive absorption behavior compared with singular black holes. Our result provides a new approach to distinguish a regular black hole from a singular one.
description: v1: 27 pages, 3 figures, 2 appendixes; v2: 28 pages, clarifications added, final version to appear in Physical Review D
A theoretical framework for photon-subtraction with non-mode selective resources
Creators: name: Melalkia, Mohamed F.
name: Brunel, Léandre
name: Tanzilli, Sébastien
name: Etesse, Jean
name: D'Auria, Virginia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This work establishes a versatile theoretical framework that explicitly describes single-photon subtraction from multimode quantum light in the context of non-Gaussian state generation and manipulation. The treatment focuses on easy-to-implement configurations in which no mode-selective operation is available and evaluates features and advantages of scheme where only simple filtering stages are employed on the experiments. Such configuration, by considerably reducing the experimental overheads, makes experiments involving single photon subtraction easier to be implemented. Obtained theoretical framework allows retrieving, given a multimode input state, optimal conditions required to herald and then to detect non-Gaussian states, providing a practical and powerful toolbox for experiments' design. The application of the proposed approach to the case study of Schrödinger kitten preparation starting from a frequency multimode squeezed state illustrates the impact of the derived theoretical tools.
Horizontal Branch Stars and the Ultraviolet Universe
Creators: name: Catelan, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Extremely hot horizontal branch (HB) stars and their progeny are widely considered to be responsible for the "ultraviolet upturn" (or UVX) phenomenon observed in elliptical galaxies and the bulges of spirals. Yet, the precise evolutionary channels that lead to the production of these stars remain the source of much debate. In this review, we discuss two key physical ingredients that are required in order for reliable quantitative models of the UV output of stellar populations to be computed, namely, the mass loss rates of red giant branch stars and the helium enrichment "law" at high metallicities. In particular, the recent evidence pointing towards a strong enhancement in the abundances of the alpha-elements in the Galactic bulge (compared to the disk), and also the available indications of a similar overabundance in (massive) elliptical galaxies, strongly suggest that the helium abundance Y may be higher in ellipticals and bulges than it is in spiral disks by an amount that may reach up to 0.15 at [Fe/H] ~ +0.5. If so, this would strongly favor the production of hot HB stars at high metallicity in galactic spheroids. We also discuss the existence of mass loss recipes beyond the commonly adopted Reimers "law" that are not only more consistent with the available empirical data, but also much more favorable to the production of extended HB stars at high metallicity. Finally, we discuss new empirical evidence that suggests that different evolutionary channels may be responsible for the production of EHB stars in the field and in clusters.
description: 14 pages, four figures. Invited review, to appear in New Quests in Stellar Astrophysics II: The Ultraviolet Properties of Evolved Stellar Populations (proceedings of the Puerto Vallarta conference)
Negative modes of Schwarzschild black hole in Einstein-Gauss-Bonnet Theory
Creators: name: Hirayama, Takayuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study non conformal negative modes of Schwarzschild black holes in the five dimensional Einstein-Gauss-Bonnet gravity theory with a zero or negative cosmological constant, in the context of the semiclassical quantum gravity formulated by the path integral. We find an unique negative mode when the black hole has a negative heat capacity which is the same in Einstein theory. On the other hand, we still find negative modes inside a parameter region where a small black hole has a positive heat capacity. The number is one/two for the case of zero/negative cosmological constant respectively. In the rest of the parameter region where the heat capacity is positive, we find no negative modes. We discuss the possible physical understanding of having one or two negative modes.
description: 17 pagers, 9 figures
Gauging hidden symmetries in two dimensions
Creators: name: Samtleben, Henning
name: Weidner, Martin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We initiate the systematic construction of gauged matter-coupled supergravity theories in two dimensions. Subgroups of the affine global symmetry group of toroidally compactified supergravity can be gauged by coupling vector fields with minimal couplings and a particular topological term. The gauge groups typically include hidden symmetries that are not among the target-space isometries of the ungauged theory. The possible gaugings are described group-theoretically in terms of a constant embedding tensor subject to a number of constraints which parametrizes the different theories and entirely encodes the gauged Lagrangian. The prime example is the bosonic sector of the maximally supersymmetric theory whose ungauged version admits an affine E_9 global symmetry algebra. The various parameters (related to higher-dimensional p-form fluxes, geometric and non-geometric fluxes, etc.) which characterize the possible gaugings, combine into an embedding tensor transforming in the basic representation of E_9. This yields an infinite-dimensional class of maximally supersymmetric theories in two dimensions. We work out and discuss several examples of higher-dimensional origin which can be systematically analyzed using the different gradings of E_9.
description: 38 pages, 2 figures, v2: minor corrections, version published in JHEP
ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ ДЛЯ ФОРМИРОВАНИЯ МЕДИАДИСКУРСА
Creators: name: Гончаров Д.К.
name: Гончарова Д.Д.
Publisher: name: Кронос
Year: 2021
Subjects: МЕДИАДИСКУРС
СОЦИАЛЬНЫЙ КОНСТРУКТИВИЗМ
СОЦИАЛЬНЫЕ СЕТИ
РЕГУЛЯРНЫЕ ВЫРАЖЕНИЯ
СНИППЕТ
MEDIA DISCOURSE
SOCIAL CONSTRUCTIVISM
SOCIAL NETWORKS
REGULAR EXPRESSIONS
SNIPPET

description: В статье рассматриваются технологические и методические особенности формирования медиадискурса в современной России. В качестве методологической базы используется социальный конструктивизм П. Бергера и Т. Лукмана, предполагающий наличие множественных социальных реальностей. В качестве технологической основы рассматриваются программы для осуществления автоматизированного размещения постов в социальных сетях как социальной среды формирования медиадискурса.
Electromagnetic pulse reflection at self-generated plasma mirrors: laser pulse shaping and high order harmonic generation
Creators: name: Bulanov, S. S.
name: Macchi, A.
name: Maksimchuk, A.
name: Matsuoka, T.
name: Nees, J.
name: Pegoraro, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A thin layer of overdense plasma is created when an electromagnetic pulse interacts with a rapidly ionizing thin foil. This layer will reflect the incoming pulse, forming a so-called plasma mirror. A simple realistic model based on paired kinetic and wave equations is used to describe analytically the process of mirror formation and the reflection and transmission of the incident pulse. The model incorporates the exact description of the ionization process in the foil and the polarization and conduction currents that follow. The analytical description of the reflected and transmitted pulses as well as their dependence on foil parameters, and initial pulse amplitude and form are presented. Possible application and effectiveness of this process to improve laser pulse contrast are discussed. In the case of the linearly polarized incident pulse, there harmonic generation occurs, that is absent in the case of the circular polarization. The spectra of the reflected pulses for different initial forms and amplitudes are studied.
description: 12 pages, 6 figures; to appear in Physics of Plasmas
КАДРОВАЯ ПОЛИТИКА В ОТНОШЕНИИ НАЦИОНАЛЬНЫХ МЕНЬШИНСТВ В КНР ВО ВТОРОЙ ПОЛОВИНЕ XX В
Creators: name: Набокова Вероника Викторовна
Publisher: name: Кронос
Year: 2021
Subjects: ГАНЬБУ
КНР
КАДРОВАЯ ПОЛИТИКА В КНР
GANBU
PRC
PERSONNEL POLICY IN THE PRC

description: В статье рассматривается вопрос кадровой политики в отношении национальных меньшинств в КНР во второй половине XX в. В 50-е годы в КНР особое место уделялось представителям из неханьского населения.
Romano Guardini e l’ambiguità dell’epoca moderna
Creators: name: Scholz-Zappa, Monica
Publisher: name: Nuovo Giornale di Filosofia della Religione
Year: 2021

description: La riduzione della Rivelazione a etica, del Lógos a Éthos, che ha preso l’avvio in seno all’epoca moderna, è una delle cause indicate da Guardini dell’imporsi di quella sottile ambiguità, riguardo al tema dei “valori” e dei riferimenti normativi, i cui esiti sono rintracciabili anche nella società attuale. Quella ambiguità che da una parte dichiara la netta cesura con la loro origine cristiana, dall’altra, secondo la necessità della ragion pratica, gode di un loro indebito usufrutto. È questo uno dei motivi che rendono equivoco anche lo stesso discorso sulla religiosità, in cui ormai coabitano differenti semantiche che stentano a trovare un vocabolario comune. L’invito ad andare a fondo, con serietà e lealtà, delle conseguenze delle diverse istanze è la sfida che Guardini propone all’uomo di ogni tempo.
description: Nuovo Giornale di Filosofia della Religione, N. 11 Settembre - Dicembre 2019
The Shuffle Variant of a Diophantine equation of Miyazaki and Togbé
Creators: name: Kızıldere, Elif
name: Soydan, Gökhan
name: Han, Qing
name: Yuan, Pingzhi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D61, 11J86

description: In 2012, T. Miyazaki and A. Togbé gave all of the solutions of the Diophantine equations $(2am-1)^x+(2m)^y=(2am+1)^z$ and $b^x+2^y=(b+2)^z$ in positive integers $x,y,z,$ $a>1$ and $b\ge 5$ odd. In this paper, we propose a similar problem (which we call the shuffle variant of a Diophantine equation of Miyazaki and Togbé). Here we first prove that the Diophantine equation $(2am+1)^x+(2m)^y=(2am-1)^z$ has only the solutions $(a, m, x, y, z)=(2, 1, 2, 1, 3)$ and $(2,1,1,2,2)$ in positive integers $a>1,m,x,y,z$. Then using this result, we show that the Diophantine equation $b^x+2^y=(b-2)^z$ has only the solutions $(b,x, y, z)=(5, 2, 1, 3)$ and $(5,1,2,2)$ in positive integers $x,y,z$ and $b$ odd.
description: 12 pages, accepted for publication
Interpretation of K+K0bar pair production in pp collisions
Creators: name: Dzyuba, A.
name: Buescher, M.
name: Hanhart, C.
name: Kleber, V.
name: Koptev, V.
name: Stroeher, H.
name: Wilkin, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A combined analysis of the published data on the pp -> dK+K0bar reaction at excess energies of 47.4 MeV and 104.7 MeV is presented. Evidence is found for both the production of the a0+(980)scalar resonance and for a strong K0bar:d final state interaction.
description: 7 pages + 8 figures
Size evolution of the most massive galaxies at 1.7
Creators: name: Buitrago, Fernando
name: Trujillo, Ignacio
name: Conselice, Christopher J.
name: Bouwens, Rychard J.
name: Dickinson, Mark
name: Yan, Haojing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the sizes of 82 massive (M>10^11 M_sun) galaxies at 1.72, confirming the extreme compactness of these galaxies. We split our sample into disk-like (n<2) and spheroid-like (n>2) galaxies based on their Sersic indices, and find that at a given stellar mass disk-like galaxies at z~2.3 are a factor of 2.6+/-0.3 smaller than present day equal mass systems, and spheroid-like galaxies at the same redshifts are 4.3+/-0.7 smaller than comparatively massive elliptical galaxies today. At z>2 our results are compatible with both a leveling off, or a mild evolution in size. Furthermore, the high density (~2x10^10 M_sun kpc^-3) of massive galaxies at these redshifts, which are similar to present day globular clusters, possibly makes any further evolution in sizes beyond z=3 unlikely.
description: 5 pages, 2 figures, 2 tables, accepted by ApJ Letters, minor changes added to match the accepted version