cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time-reversal odd distribution functions in chiral models with vector mesons
Creators: name: Drago, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The so-called time-reversal odd distribution functions are known to be non-vanishing in QCD due to the presence of the link operator in the definition of these quantities. I show that T-odd distributions can be non-vanishing also in chiral models, if vector mesons are introduced as dynamical gauge bosons of a hidden local symmetry. Moreover, since the flavor dependence of these distributions is different in chiral models respect to non chiral ones, the phenomenological analysis of experimental data will be able to distinguish between these two classes of models.
description: 4 pages
О ПРИЧИНАХ НАПАДЕНИЯ ГУННОВ СЕВЕРНОГО ПРИЧЕРНОМОРЬЯ НА РИМСКУЮ ИМПЕРИЮ В 395 г.
Creators: name: Зубарев Виктор Геннадьевич
name: Ярцев Сергей Владимирович
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: Феодосий I
Руфин
Стилихон
гунны
готы

description: Главной целью исследования является выявление причин гуннских нападений на Римскую империю в 395 г. Используя метод критического анализа содержания сочинений позднеантичного и раннесредневекового времени, авторы приходят к выводу о возрастающей роли варварского мира Северного Причерноморья в римской внутренней политике в конце IV в. Опустошение гуннами готской Фракии, возможно, было изначально санкционировано римлянами в связи с необходимостью ослабления готов-федератов и улучшения отношений с кочевниками по причине ухода основных римских боеспособных сил на войну против узурпатора Флавия Евгения. После смерти Феодосия I внутренняя ситуация в империи вновь обострилась в связи с противостоянием Стилихона и Руфина — опекунов молодых и слабых императоров. В ходе этой борьбы Руфин намеренно допустил катастрофическое гуннское нашествие на восточные провинции, стремясь, тем самым, вернуть восточную армию в Константинополь под свое командование и улучшить отношения с гуннами.
title: The Phenomenology of Technology: A Search Into the Experience of Technology and Machines
Creators: name: Duobaitis, Dallas
Publisher: name: Emily Carr University of Art and Design
Year: 2015
Subjects: subject: Art and technology
valueUri: https://id.loc.gov/authorities/subjects/sh85007977
subject: Technology
valueUri: https://id.loc.gov/authorities/subjects/sh85133147
subject: Robotics
valueUri: https://id.loc.gov/authorities/subjects/sh85114628
subject: Installations (Art)
valueUri: https://id.loc.gov/authorities/subjects/sh85066731
subject: Painting
valueUri: https://id.loc.gov/authorities/subjects/sh85096661
subject: Drawing
valueUri: https://id.loc.gov/authorities/subjects/sh85039408

description: This paper discusses strategies for breaking conventional semiotic systems of signs and symbols towards machines and technologies, and considers alternative modes for interactive technologies and common technological objects. My research explores the use of semiotic analysis conventionally applied to machines, and questions whether this system of signs adequately describes the engagements and interactions between biological and mechanical beings. This body of work brings focus to these relationships by highlighting my works that use digital and interactive technologies to explore modes of relational feedback. The primary focus is to create an interaction with the materiality of an ever increasing digitalizing, mechanizing and animating (Here I am using the definition of animating to imply a giving life to, to enliven, and to impart motion or activity onto.) of our modern landscape. This research is driven by the premise that recognizing and exposing the modes and areas of interactivity breaks existing conditioned semiotics towards objects by allowing the agency of objects, their ability to effect change in the world based on input, to be made visible. My inquiry into the relationships between humans and objects focuses on interactive artworks as modes for recognizing a social exchange, one that is less about the qualities of the object or subject, and instead how both contribute to an event or exchange between each other. With virtually all the technologies we will encounter on any given day being designed to interact with a human at some level, this is a point of discussion I feel we should have with our creations, both technological and artistic.
TARDIS Paper II: Synergistic Density Reconstruction from Lyman-alpha Forest and Spectroscopic Galaxy Surveys with Applications to Protoclusters and the Cosmic Web
Creators: name: Horowitz, Benjamin
name: Zhang, Benjamin
name: Lee, Khee-Gan
name: Kooistra, Robin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this work we expand upon the Tomographic Absorption Reconstruction and Density Inference Scheme (TARDIS) in order to include multiple tracers while reconstructing matter density fields at Cosmic Noon (z ~ 2-3). In particular, we jointly reconstruct the underlying density field from simulated Lyman-Alpha forest observations at $z\sim 2.5$ and an overlapping galaxy survey. We find that these data are synergistic, with the Lyman Alpha forest providing reconstruction of low density regions and galaxy surveys tracing the density peaks. We find a more accurate power spectra reconstruction going to higher scales when fitting these two data-sets simultaneously than if using either one individually. When applied to cosmic web analysis, we find performing the joint analysis is equivalent to a Lyman Alpha survey with significantly increased sight-line spacing. Since we reconstruct the velocity field and matter field jointly, we demonstrate the ability to evolve the mock observed volume further to z=0, allowing us to create a rigorous definition of "proto-cluster" as regions which will evolve into clusters. We apply our reconstructions to study protocluster structure and evolution, finding for realistic survey parameters we can provide accurate mass estimates of the z \approx 2 structures and their z = 0 fate.
description: 16 pages, 12 figures
Mt 18, 10b in frühsyrischer Deutung
Creators: name: Cramer, Winfrid
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 59 (1975): Oriens christianus, Band 59
On embeddings of homogeneous spaces with small boundary
Creators: name: Arzhantsev, Ivan V.
name: Hausen, Juergen
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L24, 14M17, 14M25

description: We study equivariant embeddings with small boundary of a given homogeneous space $G/H$, where $G$ is a connected, linear algebraic group with trivial Picard group and only trivial characters, and $H \subset G$ is an extension of a connected Grosshans subgroup by a torus. Under certain maximality conditions, like completeness, we obtain finiteness of the number of isomorphism classes of such embeddings, and we provide a combinatorial description the embbeddings and their morphisms. The latter allows a systematic treatment of examples and basic statements on the geometry of the equivariant embeddings of a given homogeneous space $G/H$.
description: minor changes, 30 pages, to appear in J. Algebra
КНИЖНАЯ КУЛЬТУРА И ОБРАЗОВАННОСТЬ В РАННЕЙ ВИЗАНТИИ IV—VII вв.: МАЛАЯ АЗИЯ
Creators: name: Денисова Ирина Викторовна
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: книги
образованность
Поздняя античность
Ранняя Византия
Восточное Средиземноморье
Малая Азия

description: В работе рассматривается роль книжной культуры, состояние образованности в Восточном Средиземноморье ранневизантийского времени (IV—VII вв.) в контексте культурного континуитета между античностью и Средневековьем, на примере Малой Азии. Помимо внутренней истории книжного знания и школ, делаются общие наблюдения над спецификой ситуации в каждом из основных центров. Отдельно показано развитие античной и христианской интеллектуальных традиций по основным регионам. Сохранение высоких стандартов грамотности, книг и школ продолжалось до вступления Византии в «Темные века».
Phase-coherent sensing of the center-of-mass motion of trapped-ion crystals
Creators: name: Affolter, M.
name: Gilmore, K. A.
name: Jordan, J. E.
name: Bollinger, J. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Trapped ions are sensitive detectors of weak forces and electric fields that excite ion motion. Here measurements of the center-of-mass motion of a trapped-ion crystal that are phase-coherent with an applied weak external force are reported. These experiments are conducted far from the trap motional frequency on a two-dimensional trapped-ion crystal of approximately 100 ions, and determine the fundamental measurement imprecision of our protocol free from noise associated with the center-of-mass mode. The driven sinusoidal displacement of the crystal is detected by coupling the ion crystal motion to the internal spin-degree of freedom of the ions using an oscillating spin-dependent optical dipole force. The resulting induced spin-precession is proportional to the displacement amplitude of the crystal, and is measured with near-projection-noise-limited resolution. A $49\,$pm displacement is detected with a single measurement signal-to-noise ratio of 1, which is an order-of-magnitude improvement over prior phase-incoherent experiments. This displacement amplitude is $40$ times smaller than the zero-point fluctuations. With our repetition rate, a $8.4\,$pm$/\sqrt{\mathrm{Hz}}$ displacement sensitivity is achieved, which implies $12\,$yN$/\mathrm{ion}/\sqrt{\mathrm{Hz}}$ and $77\,μ$V$/$m$/\sqrt{\mathrm{Hz}}$ sensitivities to forces and electric fields, respectively. This displacement sensitivity, when applied on-resonance with the center-of-mass mode, indicates the possibility of weak force and electric field detection below $10^{-3}\,$yN/ion and $1\,$nV/m, respectively.
Fractal dimension in star formation regions
Creators: name: Tobias, Canavesi
name: Santiago, Hurtado
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Several two-dimensional studies in spiral galaxies show that HII star formation regions have a fractal distribution, with a fractal dimension of approximately 2.3. In this work, the fractal dimension is calculated through the box-counting method implemented in an R code. The innovation of the work lies in calculating the fractal dimension directly in 3 dimensions, without the need for the use of projections, using position and distance data from Gaia (Data version 2). The estimated fractal dimension for the regions studied in the Milky Way are 2.468 (M16), 2.126 (Orion Nebula) and 2.435 (RCW 38).
Multi-Energy Radiography Against Terrorism. Theory and Experiments
Creators: name: Naydenov, Sergei V.
name: Ryzhikov, Vladimir D.
name: Smith, Craig F.
name: Wood, Dennis
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Multi-energy radiography is a new direction in non-destructive testing. Its specific feature is separate detection of penetrating radiation in several energy channels. Multi-energy radiography allows quantitative determination of the atomic composition of objects. This is its principal advantage over conventional radiography. In particular, dual-energy radiography allows determination of the effective atomic number of a material with an accuracy of up to 80-90%. Development of three-energy radiography and radiography of higher multiplicity makes it possible to further improve the reconstruction of an objects chemical composition. This presents the possibility, for example, of detection of explosives and other illegal objects in luggage with a reliability approaching 100%. These developments can find application not only in anti-terrorist activities, but also in areas such as industrial testing and nuclear medicine.
description: 8 pages, 7 figures
ЭВОЛЮЦИЯ ИСТОРИЧЕСКОЙ ТОПОГРАФИИ АЛЕКСАНДРИИ ЕГИПЕТСКОЙ В РАННЕВИЗАНТИЙСКОЕ ВРЕМЯ
Creators: name: Руднева Мария Александровна
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: Александрия
Египет
Поздняя античность
Ранняя Византия
топография
Серапеум

description: Статья посвящена рассмотрению особенностей исторического развития топографии одного из крупнейших городов ранневизантийского времени — Александрии Египетской. Выделены проблемы и достижения в исследовании топографии города. На основе комплексного анализа письменных, картографических источников и результатов археологического исследования определены особенности эволюции исторической топографии города в ранневизантийское время. Рациональное использование географического положения города предопределило его развитие в последующие столетия. В ранневизантийское время трансформация городской топографии происходила преимущественно в рамках имеющейся городской площади в силу естественной ограниченности пространства.
The Demand for Food Away from Home: Do Other Preferences Compete with Our Desire to Eat Healthfully?
Creators: name: Stewart, Hayden
name: Blisard, Noel
name: Jolliffe, Dean
name: Bhuyan, Sanjib
name: Stewart, Hayden
name: Blisard, Noel
name: Jolliffe, Dean
name: Bhuyan, Sanjib
Publisher: name: Unknown
Year: 2005
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: convenience
subject: food away from home
subject: nutrition
subject: omitted-variable bias
subject: preferences
subject: social marketing

description: Health-oriented government agencies have had limited success at encouraging Americans to eat a healthful diet. One reason may be that other preferences compete with our desire to eat healthfully. We explore the effect of consumer preferences on the demand for food away from home, including frequency of eating out and choice of outlet type. Preferences for convenience and ambience are found to influence behavior. Furthermore, omitting these variables from econometric models can bias the estimated effect of preferences for a healthful diet.
ИОАНН ЛИД И БИБЛИОТЕКИ В КОНСТАНТИНОПОЛЕ VI В.
Creators: name: Бузанаков Юрий Владимирович
name: Синица Марина Михайловна
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: Иоанн Лид
поздняя античность
Константинополь
ранневизантийский антикварианизм
ранневизантийская книжность
библиотеки

description: Работа посвящена исследованию источников книг ранневизантийского писателя-антиквара первой половины VI в. Иоанна Лида. На основе его произведений и работ его современников в статье проанализировано наличие различных библиотек в ранневизантийском Константинополе. В столице Восточной Римской империи имелось большое число библиотек, как государственных, так и частных, а издательское дело было широко развито, благодаря чему ранневизантийские интеллектуалы могли лично обращаться к большому числу античной и современной им литературы.
Transaction Frequency and Hedging in Commodity Processing
Creators: name: Dahlgran, Roger A.
name: Dahlgran, Roger A.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: process hedging
subject: risk management
subject: soybean crushing

description: This study examines the effect of transaction frequency on profit and cash flow risk for firms that periodically purchase inputs, continuously transform inputs into outputs, and periodically sell output. Soybean-processing profit and cash flows are computed for unhedged, direct-hedged, and risk-minimizing-hedged processing with up to 52 transactions per year. Findings include: (a) higher transaction frequencies result in lower unhedged profit and cash flow risk and lower hedging effectiveness, (b) anticipatory hedging provides less risk protection than product-transformation hedging, (c) stabilizing cash flow stabilizes annual profits but the converse does not hold, and (d) hedging profits makes cash flow more variable.
Phase diagram of a two-site coupled complex Sachdev-Ye-Kitaev model
Creators: name: García-García, Antonio M.
name: Zheng, Jie Ping
name: Ziogas, Vaios
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the thermodynamic properties of a two-site coupled complex Sachdev-Ye-Kitaev (SYK) model in the large $N$ limit by solving the saddle-point Schwinger-Dyson (SD) equations. We find that its phase diagram is richer than in the Majorana case. In the grand canonical ensemble, we identify a region of small chemical potential, and weak coupling between the two SYKs, for which two first order thermodynamic phase transitions occur as a function of temperature. First, we observe a transition from a cold wormhole phase to an intermediate phase that may correspond to a charged wormhole. For a higher temperature, there is another first order transition to the black hole phase. As in the Majorana case, the low temperature wormhole phase is gapped and, for sufficiently large coupling between the two complex SYK, or chemical potential, the first order transitions become crossovers. The total charge is good indicator to study the phase diagram of the model: it is zero in the cold wormhole phase and jumps discontinuously at the temperatures at which the transitions take place. Based on the approximate conformal symmetry of the ground state, expected to be close to a thermofield double state, we identify the effective low energy action of the model. It is a generalized Schwarzian action with $SL(2,R)\times U(1)$ symmetry with an additional potential and a extra degree of freedom related to the charge. In the large $N$ limit, results from this low energy action are consistent with those from the solution of the SD equations. Our findings are a preliminary step towards the characterization of traversable wormholes by its field theory dual, a strongly interacting fermionic system with charger, that is easier to model experimentally.
description: 30 pages, 11 figures
«ПРЕПРОВОЖДАЯ ЗДЕСЬ ДОШЕДШЕЕ ОТ ПОЧТЕННЕЙШЕГО АНАПСКОГО МУСТАФЫ-ПАШИ ОРЕГИНАЛЬНОЕ ПИСЬМО И ПЕРЕВОД С ОНОГО…»: ПРАКТИКИ РОССИЙСКО-ОСМАНСКОЙ КОММУНИКАЦИИ В СЕВЕРНОМ ПРИЧЕРНОМОРЬЕ (1792—1828 гг.)
Creators: name: Сень Дмитрий Владимирович
name: Колесов Владимир Игоревич
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: Османская империя
Анапа
Россия
Северное Причерноморье
переписка
устные сообщения
переводчики
медиаторы
языки коммуникации

description: Статья посвящена российско-османскому взаимодействию в конкретный исторический период (1792—1828 гг.), когда крепость Анапа являлась центром османских владений на Северо-Западном Кавказе. Исследуются поводы и причины разных коммуникаций, их акторы и случаи устного и письменного взаимодействия, а также тексты писем. Анализируются формы коммуникации (переписка, устные сообщения, дипломатические переговоры) местных и иных российских элит с анапскими пашами и с их представителями. Выявлено и проанализировано несколько десятков писем и сообщений. Обращено внимание на языки анализируемой коммуникации (османо-турецкий, русский, армянский, греческий), а также на состав переводчиков и акторов устных сообщений, включая курьеров и посредников — как чиновников, так и других лиц, окказионально привлекаемых обеими сторонами к развитию диалога. В ходе анализа письменных документов, помимо анализа их языков, изучена структура текстов, т.е. их индивидуальные формуляры, состоявшие из набора лексических единиц. Сделан вывод о системной устной и письменной российско-османской коммуникации в регионе на протяжении более тридцати лет.
Fast polarimetry system for the application to spin quantum non-demolition measurement
Creators: name: Takeuchi, M.
name: Takano, T.
name: Ichihara, S.
name: Yamaguchi, A.
name: Kumakura, M.
name: Yabuzaki, T.
name: Takahashi, Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the development of a fast pulse polarimeter for the application to quantum non-demolition measurement of atomic spin (Spin QND). The developed system was tunable to the atomic resonance of ytterbium atom and has narrow laser linewidth suitable for spin QND. Using the developed polarimeter, we successfully demonstrated the measurement of the vacuum noise, with 10^6 to 10^7 photon number per pulse.
description: 4 pages, 7 figures
Б.В. ФАРМАКОВСКИЙ О КОЛЛЕГАХ (К 150-ЛЕТИЮ УЧЕНОГО)
Creators: name: Бухарин Михаил Дмитриевич
name: Ананьев Виталий Геннадьевич
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: антиковедение
история науки
античное искусство
Крым
архивы
Российская академия наук
Б.В. Фармаковский
Б.А. Тураев
О.Ф. Вальдгауер

description: Б.В. Фармаковский — крупнейший российский (советский) антиковед, историк искусства, организатор науки конца XIX — первой третий ХХ в. В Рукописном отделе Научного архива ИИМК РАН сохранился целый ряд связанных с ним документов, которые освещают развитие российской (советской) науки о древнем Востоке, классической археологии, античном искусстве: два выступления Фармаковского памяти крупнейшего востоковеда Б.А. Тураева, рекомендательные письма С.А. Жебелёву и О.Ф. Вальдгауеру в Российскую академию истории материальной культуры. Эти документы важны как источник информации для реконструкции особенностей развития российской исторической науки в целом и научных биографий ученых в частности.
Additional file 1 of Treatment fidelity in the Tinnitus Retraining Therapy Trial
Creators: name: Scherer, Roberta W.
name: Erdman, Sue Ann
name: Gold, Susan
name: Formby, Craig
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
Graph Convolutional Networks using Heat Kernel for Semi-supervised Learning
Creators: name: Xu, Bingbing
name: Shen, Huawei
name: Cao, Qi
name: Cen, Keting
name: Cheng, Xueqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Graph convolutional networks gain remarkable success in semi-supervised learning on graph structured data. The key to graph-based semisupervised learning is capturing the smoothness of labels or features over nodes exerted by graph structure. Previous methods, spectral methods and spatial methods, devote to defining graph convolution as a weighted average over neighboring nodes, and then learn graph convolution kernels to leverage the smoothness to improve the performance of graph-based semi-supervised learning. One open challenge is how to determine appropriate neighborhood that reflects relevant information of smoothness manifested in graph structure. In this paper, we propose GraphHeat, leveraging heat kernel to enhance low-frequency filters and enforce smoothness in the signal variation on the graph. GraphHeat leverages the local structure of target node under heat diffusion to determine its neighboring nodes flexibly, without the constraint of order suffered by previous methods. GraphHeat achieves state-of-the-art results in the task of graph-based semi-supervised classification across three benchmark datasets: Cora, Citeseer and Pubmed.
Additional file 1 of The effect of knowledge brokering on nurses’ empathy with patients receiving cardiac care: a study protocol
Creators: name: Atefeh Galehdarifard
name: Moloud Radfar
name: Gholami, Mohammad
name: Khademi, Mojgan
name: Ebrahimzadeh, Farzad
name: Mohammad-Hasan Imani-Nasab
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Fig. 1. Study Design.
Income Earning Potential versus Consumptive Amenities in Determining Ranchland Values
Creators: name: Torell, L. Allen
name: Rimbey, Neil R.
name: Ramirez, Octavio A.
name: McCollum, Daniel W.
name: Torell, L. Allen
name: Rimbey, Neil R.
name: Ramirez, Octavio A.
name: McCollum, Daniel W.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Land Economics/Use
subject: consumptive value
subject: grazing fees
subject: grazing permit value
subject: hedonic model
subject: land value
subject: lifestyle agriculture
subject: public land grazing
subject: voluntary grazing permit buyout

description: The relative importance of income earning potential versus consumptive values in setting ranchland prices is examined using a truncated hedonic model. The market value of New Mexico ranches is related to annual income earning potential and other ranch characteristics including ranch size, location, elevation, terrain, and the amount of deeded, public, and state trust land on the ranch. We found ranch income to be a statistically important determinant of land value, but yet a relatively small percentage of ranch value was explained by income earnings. Ranch location, scenic view, and the desirable lifestyle influenced ranch value more than ranch income.
MPEC 2024-T251 : 2024 SU35
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SU35

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Auswirkungen der Schule von Nisibis
Creators: name: Khoury, Nabil El-
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 59 (1975): Oriens christianus, Band 59
Theoretical Study of Extensive Air Shower Effects in Atmosphere by Simulating the Lateral structure of Several Cosmic Radiations
Creators: name: Jassim, Hassanen Abdulhussaen
name: Al-Rubaiee, A. A.
name: Al-Alawy, Iman Tarik
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extensive air showers (EAS) are a cascade of electromagnetic radiation and ionized particles that produced in the atmosphere through the interaction of a primary cosmic ray with the atom of nucleus in the air producing a huge amount of secondary particles such as X-ray, electrons, neutrons, muons, alpha particles, etc. In this work, EAS effects were demonstrated by estimating the lateral distribution function (LDF) at ultrahigh energies of the various cosmic ray particles. The LDF of charged particles such as electron and positron pair production, gamma and muons particles was simulated at ultrahigh energies 10^16, 10^18 and 10^19 eV. The simulation was carried out using an air shower simulator called AIRES system version 2.6.0. The effect of the primary particles, energies and zenith angle on the LDF of charged particles produced in the EAS was taken into account. Comparison of LDF for charged particles and experimental results gave good agreement for electron and positron pair production and muons particles at 10^19 eV for 0 and 10 zenith angles
description: 9 pages, 4 figures, published in Indian journal of public health research and developments
ЗАБЫТЫЕ ОТКРЫТИЯ ЭСКИ-КЕРМЕНСКИХ ЭКСПЕДИЦИЙ 1930—1933 ГГ. ПРИ УЧАСТИИ Ф.И. ШМИТА
Creators: name: Сыченкова Лидия Алексеевна
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: История Эски-Кермена
Ф.И. Шмит
экспедиции 1930—1933 гг.
история средневекового Крыма
«пещерный город»
осадный колодец
культура водопользования
базилика

description: Статья посвящена малоизвестным моментам истории изучения «пещерного города» Эски-Кермен в 1930—1933 гг., а, точнее, вкладу Ф.И. Шмита в его изучение. Фигура этого ученого, картина экспедиций при его участии, раскрываемая через письма и воспоминания, не была до сих пор предметом исследования историков археологии. Предложенные в статьях Ф.И. Шмита рекомендации по развитию сельского хозяйства региона не потеряли научно-практической значимости и по сегодняшний день. Археологические открытия экспедиций 1930—1933 гг. оказались не востребованы, а упущенные экономические выгоды для развития Крыма не осмысленны. Публикации Ф.И. Шмита об экспедициях на Эски-Кермен позволяют говорить о его значительном вкладе в начало систематического изучения средневековой истории Крыма. Материалы экспедиций и забытые публикации Ф.И. Шмита могут стать важной частью обобщающего исследования по истории Эски-Кермена.
EXPLORING THE ROLE OF MENTORING IN AGRICULTURAL ECONOMICS PH.D. TRAINING
Creators: name: Perry, Gregory M.
name: Perry, Gregory M.
Publisher: name: Unknown
Year: 1996
Subjects: Teaching/Communication/Extension/Profession

description: Mentoring is used in many fields to prepare graduate students for a professional career. This study focuses on mentoring of Ph.D. students in agricultural economics, including the effects of mentoring on expected research output and students' satisfaction with time spent with their major professor. The sink-or-swim mentoring method seems to create the most discord among students and also negatively influences expected research output. The students' gender and citizenship seem to also impact expected output.
Theory of decoherence due to scattering events and Lévy processes
Creators: name: Vacchini, Bassano
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A general connection between the characteristic function of a Lévy process and loss of coherence of the statistical operator describing the center of mass degrees of freedom of a quantum system interacting through momentum transfer events with an environment is established. The relationship with microphysical models and recent experiments is considered, focusing on the recently observed transition between a dynamics described by a compound Poisson process and a Gaussian process.
description: 10 pages, revtex, no figures, to appear in Phys. Rev. Lett
COIN HOARD WITH IMITATIONS OF PHILIP II FROM BULGARIA
Creators: name: Prokopov, Ilya
name: Slavova, Mariana
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: imitations; Celts; Ghetto-Daki; coins; coinage; tetradrachms; drachms

description: The subject of the publication is a coin hoard containing 179 imitations known as “East Celtic”. They repeat the iconographic type of the tetradrachms of Philip II. The coin type is well known and falls into the classifications of all researchers of the so-called Celtic coinage. The authors of this material do not comment on the issue of the ethnic origin of the issuer. Also the about question of the center of this abundant coinage. The purpose of the publication is to present one of the most voluminous finds of this coin type discovered south of the Danube River. Another important aim of the material is introduce into scientific circulation some results from the study of the weight and metal content of the coins. According to previous research, the range of distribution of this imitative type is mainly north of the Danube River. They are included in all catalogs of Celtic coins, but information on their location is scarce. Often the authors present information only from which collection the coins are from. It is only in his work devoted to the so-called “Ghetto-Dacian” coinage that K. Preda gives a comprehensive picture of the main hoards and the areas where they were discovered. It also offers information on treasures south of the Danube River. The place of storage of the coin treasure published here is extremely unusual. It is in the collection of the Haskovo Regional History Museum. No similar finds, including single coins, have been found in the region of Haskovo district, as well as on the territory of today's Southern Bulgaria. The authors have unconfirmed information about the location of this coin hoard. The coins were discovered in today's Northeastern Bulgaria.
Precision Measurements of Magnetic Penetration Depth in Precision Measurements of Magnetic Penetration Depth in YB[sub a]₂Cu₃0₇₋[sub δ]
Creators: name: Kamal, Saeid
Publisher: name: University of British Columbia
Year: 2009

description: Using sensitive cavity perturbation techniques, we have performed extensive measurements of the microwave surface impedance of high quality single crystals of YB[sub a]₂Cu₃0₇₋[sub δ]. We have employed a novel loop-gap resonator with operating frequency at about 1 GHz and quality factor of 1 x 10⁶ to 4 x 10⁶ to probe the electrodynamics of the superconducting state of YB[sub a]₂Cu₃0₇₋[sub δ]. The main focus of the thesis has been on the precision measurements of the magnetic penetration depth. We have studied the superconducting region of the phase diagram of YB[sub a]₂Cu₃0₇₋[sub δ] by measuring single crystals with various amounts of oxygen doping, ranging from underdoped ortho-II phase (δ = 0.5) to the fully oxygenated (δ = 0; slightly overdoped). The role of impurities have been studied by introducing controlled amounts of Zn, Ni, and Ca impurities into the crystals. A new generation of ultra high purity single crystals were grown at UBC using BaZrOa crucibles. Observation of extremely long quasiparticle scattering times in these higher purity crystals opened a new chapter in microwave spectroscopy of quasiparticles in YB[sub a]₂Cu₃0₇₋[sub δ] at our laboratory. Measurements of magnetic penetration depth performed in this thesis have been a continuous contributing factor to these studies. Also careful measurements of magnetic penetration depth near the transition temperature T[sub c]₁, has revealed non-mean field behaviour consistent with 3D-XY critical fluctuations.
МОНЕТЫ ПАНТИКАПЕЯ И ФАНАГОРИИ ТРЕТЬЕЙ ЧЕТВЕРТИ I В. ДО Н.Э. КАК ИСТОЧНИК ИСТОРИЧЕСКОЙ ИНФОРМАЦИИ
Creators: name: Чореф Михаил Михайлович
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: история
нумизматика
Боспор
полисный чекан
иконографический анализ

description: Статья посвящена оболам, тетрахалам и дихалкам чекана Пантикапея и Фанагории с бюстами Аполлона в лавровом венке, бородатого Геракла, а также Ники с шестиконечной звездой с длинными лучами на аверсе и с изображениями стрелы, лиры и пальмовой ветви, пасущегося пегаса, лука с горитом или со стрелой, лавровой ветви, перевитой лентой, палицы и львиной шкуры, а также проры корабля на реверсе. Их общепринятая классификация до сих пор не разработана, а потенциал как источника исторической информации не раскрыт. Решаем эту задачу, основываясь на результатах иконографического анализа. Выделяем в первую серию оболы со стрелой, лирой и пальмовой ветвью и тетрахалки с пасущимся пегасом на реверсе, выбитые на монетах Асандра. Судя по митридатидской символике, их отчеканили при Скрибонии. После его свержения в Пантикапее были выпущены тетрахалки с горитом и луком и дихалки с палицей и львиной шкурой на реверсе. Относим эти монеты ко второй серии Пантикапея. В Фанагории в период восстания чеканили тетрахалки с пальмовой ветвью. Выделяем их во вторую серию Фанагории. А после победы инсургентов выпустили тетрахалки с луком и стрелой на реверсе. Относим их к третьей серии Фанагории. Судя по разнообразию символики монет, после гибели Скрибония Боспорское государство распалось. В начале правления Полемона I в Пантикапее и в Фанагории были отчеканены однотипные тетрахалки с бюстом Аполлона на аверсе и с пророй корабля на реверсе, что свидетельствует о восстановлении единства государства. Относим эти монеты к третьей серии Пантикапея и четвертой серии Фанагории. Как видим, привлекшие наше внимание монеты как нельзя лучше проиллюстрировали события, произошедшие на Боспоре в последней трети I в. до н.э.
EVIDENCE ON THE ACCURACY OF EXPENDITURES REPORTED IN RECREATIONAL SURVEYS
Creators: name: Champ, Patricia A.
name: Bishop, Richard C.
name: Champ, Patricia A.
name: Bishop, Richard C.
Publisher: name: Unknown
Year: 1996
Subjects: Resource /Energy Economics and Policy

description: This article discusses the results of four experiments to test the accuracy of recreational expenditures reported in survey relative to expenditures reported in dairies. We found few situations in which the reported expenditures in the surveys and diaries differ significantly. In general, we conclude that individuals are able to accurately report recreational expenditures in ex post mail surveys. Given the wide usage of survey expenditure data by economists, we find this results encouraging.
Engineering light absorption at critical coupling via bound states in the continuum
Creators: name: Xiao, Shuyuan
name: Wang, Xing
name: Duan, Junyi
name: Zhou, Chaobiao
name: Qu, Xiaoying
name: Liu, Tingting
name: Yu, Tianbao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Recent progress in nanophotonics is driven by the desire to engineer light-matter interaction in two-dimensional (2D) materials using high-quality resonances in plasmonic and dielectric structures. Here, we demonstrate a link between the radiation control at critical coupling and the metasurface-based bound states in the continuum (BIC) physics, and develop a generalized theory to engineer light absorption of 2D materials in coupling resonance metasurfaces. In a typical example of hybrid graphene-dielectric metasurfaces, we present the manipulation of absorption bandwidth by more than one order of magnitude by simultaneously adjusting the asymmetry parameter of silicon resonators governed by BIC and the graphene surface conductivity while the absorption efficiency maintains maximum. This work reveals the generalized role of BIC in the radiation control at critical coupling and provides promising strategies in engineering light absorption of 2D materials for high-efficiency optoelectronics device applications, e.g., light emission, detection and modulation.
КЛАД РИМСКИХ МОНЕТ МЕЛЬНИКОВО-1
Creators: name: Чореф Михаил Михайлович
name: Скворцов Константин Николаевич
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: археология
история
нумизматика
самбийско-натангийская культура
клад римских монет

description: Объектом изучения стал клад римских монет, обнаруженный к юго-западу от автодороги Мельниково—Каштановка. Он был схоронен в деревянном ящике с бронзовыми ручками. Сокровище состояло из латунных монет италийского чекана. Большая их часть значительно изношена. Многие монеты так сильно потерты, что значительно потеряли в весе. Но, судя по факту их обнаружения в составе клада, их продолжали ценить. Приходим к выводу, что объект нашего исследования не являлся скоплением металлических предметов, ценимых за материал, из которого они были изготовлены. Он представляет собой денежное сокровище, составленное из хорошо известных в регионе платежных средств. Полагаем, что римская латунная монета в изобилии поступала в регион при императорах «золотого века» в обмен за янтарь. Заключаем, что население самбийсконатангийской культуры ценило разменные деньги римского чекана как средства платежа и накопления.
Relevant OTOC operators: footprints of the classical dynamics
Creators: name: Bergamasco, Pablo D.
name: Carlo, Gabriel G.
name: Rivas, Alejandro M. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The out-of-time order correlator (OTOC) has recently become relevant in different areas where it has been linked to scrambling of quantum information and entanglement. It has also been proposed as a good indicator of quantum complexity. In this sense, the OTOC-RE theorem relates the OTOCs summed over a complete base of operators to the second Renyi entropy. Here we have studied the OTOC-RE correspondence on physically meaningful bases like the ones constructed with the Pauli, reflection, and translation operators. The evolution is given by a paradigmatic bi-partite system consisting of two perturbed and coupled Arnold cat maps with different dynamics. We show that the sum over a small set of relevant operators, is enough in order to obtain a very good approximation for the entropy and hence to reveal the character of the dynamics, up to a time t 0 . In turn, this provides with an alternative natural indicator of complexity, i.e. the scaling of the number of relevant operators with time. When represented in phase space, each one of these sets reveals the classical dynamical footprints with different depth according to the chosen base.
description: 8 pages, 10 figures
МОНЕТЫ ВОСТОЧНОЙ РИМСКОЙ ИМПЕРИИ В КИТАЕ КАК ОТРАЖЕНИЕ СИТУАЦИИ НА ШЁЛКОВОМ ПУТИ
Creators: name: Шульга Даниил Петрович
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: Китай
Восточная Римская Империя
солиды
Великий Шёлковый путь
Кан Е

description: За последние сто лет в Китае было найдено более сорока восточно-римских монет, но многие из них не имеют археологического контекста, поэтому практически невозможно установить, когда они попали в Поднебесную. Кроме того, значительная часть находок изначально грубо выполнена или сильно изношена. Создание монет—имитаций также была частым явлением на Шелковом пути. Вероятно, что иногда это не было даже результатом злого умысла — византийские и иранские монеты выступали в качестве стабильных денежных единиц, положение которых было крепким, так как Китай со всей его ролью в международной торговле был раздроблен, начиная с III века н. э. Распад этот, в отличие, например, от периода Восточного Чжоу (771—221 гг. до н.э.), сопровождалась постоянным появлением и исчезновением царств и империй, которые редко существовали более одного века (особенно на севере). Конечно, в таком «политическом климате» ценность иностранных монет, имеющих стандартную массу и содержание драгоценных металлов, значительно выросла. Не менее очевидно, что это побудило многих производить «аналоги» солидов кустарным способом. Такие «умельцы» могли работать на территориях от Ближнего Востока до Желтого моря. Подлинные и «сомнительные» монеты Восточной Римской империи распространены вдоль Великого Шелкового пути (современные Синьцзян-Уйгурский и Нинся-Хуэйский автономные районы, провинции Ганьсу, Шэньси и Хэнань, частично также юг Внутренней Монголии). Например, в районе города Сиань яркая находка солида Юстиниана (авторы раскопок, однако, склонны считать монету принадлежащей правлению Юстина) была сделана в гробнице (571 г. н.э.) согдийца Кан Е. Мы ввели эту золотую монету в научный оборот в 2018 г. Кроме представления новых материалов, изучение византийских монет в Китае проливает свет на события в самой Восточной Римской империи. «Сопряжению» вышеописанных процессов и посвящена настоящая работа.
ДЖУЧИДСКИЙ ХАН БЕК-СУФИ И ЕГО МОНЕТЫ
Creators: name: Зайончковский Юрий Валентинович
name: Денисов Михаил Александрович
Publisher: name: Материалы по археологии и истории античного и средневекового Причерноморья
Year: 2020
Subjects: нумизматика
Джучиды
Золотая Орда
данг
Крым
поштемпельный анализ
Бек-Суфи

description: Серебряные монеты хана Бек-Суфи, правившего в Крыму в 822—824 гг.х., исследуются методом поштемпельного анализа. Выполнены графические реконструкции оттисков 20 лицевых штемпелей и 49 оборотных, использовавшихся при изготовлении дангов этого хана. Они работали в 93 штемпельных парах. Составлены сетки штемпельных связей, предложена датировка монет, не несущих на себе указания даты. Подготовлен обзор основных научных публикаций по теме, проанализирована метрология изучаемых эмиссий, установлен средний вес дангов — 0,84 г, приведена информация о пробе этих монет. Изученные авторами аспры с именем Бек-Суфи были отчеканены 13 штемпельными парами. Всего эксплуатировалось 7 лицевых штемпелей и 5 оборотных. Средний вес аспров составляет 0,88 г. Проанализированы также медные анонимные крымские пулы, датированные 823 г.х., временем правления Бек-Суфи. Прилагается каталог серебряных монет с именем хана Бек-Суфи, в котором воспроизведены фотоизображения и графические реконструкции штемпельных пар, которыми чеканились данги и аспры Бек-Суфи, предложены реконструкция и перевод монетных легенд.
Audiovisual perception and psychoacoustics: speech intelligibility, loudness perception and technology preference. Doctoral dissertation
Creators: name: Llorach, Gerard
Publisher: name: Zenodo
Year: 2023

description: According to the World Health Organization (WHO), 5% of the population suffers from hearing impairment. It is predicted that these numbers will rise in the future due to increasing noise pollution and exposure. Hearing aids provide a solution to rehabilitate hearing disability and enrich spoken communication. Current hearing aid development and fitting are mostly based on properties of the hearing system, such as the loss of hearing in specific frequency bands. In realistic situations, hearing is influenced by many other factors, which are rarely considered in the clinic. Moreover, hearing aids usually perform well during clinical testing but not necessarily in real-life experiences. Unsatisfactory experiences by new hearing aid users lead to rejecting the technology, and thus to a poorer quality of life. Therefore, increasing the realism in clinical evaluations might improve hearing aid fitting, provide a fuller diagnosis of hearing loss, and thus contribute to better hearing and quality of life for the hearing impaired.

In this work, it is investigated what are the effects of visual cues on psychoacoustic experiments, if audiovisual simulations reflect real-life hearing-related activities, and if virtual reality technologies are ready for research and clinical procedures. The effects of visual cues are investigated in two areas: speech perception (Chapter 2), and loudness perception (Chapter 3). Chapter 4 investigates the preference and acceptance of audiovisual technologies. The methods used in this investigation range from simple clinical setups, such as headphones and a computer monitor, to complex audiovisual simulations with surrounding audio and immersive displays. These technologies aim at more ii ecological validity, i.e., that the results gathered in the laboratory reflect real-life situations and hearing function. Virtual reality technologies are tested with young, older, and hearing-impaired participants to evaluate technology acceptance and that these technologies are not a deterrent factor for audiological procedures.

[...]

When evaluating speech perception, loudness perception and technology preference, visual cues were found to be relevant. Such results are particularly relevant when designing experiments, as in some cases the realism of the laboratory setup is crucial to obtain results that are closer to real-life situations. The materials used in this work are published and open for others to use.