cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SYNTHESIS AND CHARACTERIZATION OF  Ni0.8 Co0.2 MnX Fe 2-xO4  NANO CRYSTALLINE FERRITE  MATERIALS
Creators: name: GEZAHEGN GEZMU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Nano  sized  Nio.8
Co0.2
Mnx
Fe2-xO4
ferrites  with  varies  compositions  (x  =  0.05  and  0.1)  are
successfully  synthesized  by  Sol–gel  auto  combustion  method.  The  structure,  morphology,
chemical  composition,  electrical,  dielectric  and  magnetic  properties  of  these  synthesized
samples  are  investigated  using  x-ray  powder  diffraction  (XRD),  scanning  electron
microscopy (SEM), energy dispersive X-Ray spectroscopy (EDS), Fourier transform infrared
(FT-IR)  spectroscopy,  impedance  analyzer  (IR)  as  well  as  Electron  spin  resonance
spectroscopy (ESR).  The XRD analysis confirms the phase purity of the synthesized ferrites.
It also reveals the formation of spinel structure for both prepared powder ferrites. The lattice
parameter and the crystal size of are identified to be 8.538 Å and 58.23 nm, respectively for
Ni0.8
Co0.2
Mn0.05
Fe1.95O4
ferrite  material;  and  8.561  Å  and  59.14  nm,  respectively  for
Ni0.8
Co0.2
Mn0.1
Fe1.9O4
ferrite material.  The  average crystallite size calculated using Debye–
Scherer equation also confirms the nano crystalline nature of the samples.
EDS  patterns  confirm  the  compositional  formation  of  the  synthesized  samples,  i.e.,  both
compounds  show  the  presence  of  Ni,  Co,  Mn,  Fe  and  O  elements.  FT-IR  spectra  analysis
shows the appearance of two strong bands, which  are responsible for the formation of cubic
spinel  structures  in  both  ferrites.  From  the  electrical  conductivity  study,  two  different
regions, which are  frequency independent and  dependent regions, are clearly identified.  The
variation  of  dielectric  properties  with  frequency  shows  the  polarization  behavior  of  both
ferrites. ESR study shows that  both ferrite materials possess soft magnetization behavior at
room  temperature.  The  magnetization  curves  of  both  samples  show  weak  ferromagnetic
behavior, with slender hysteresis.
Intersectoral Analysis of Enterprise Architecture Documentation Using Large Language Models
Creators: name: EL HASSANI, Samir
Publisher: name: Zenodo
Year: 2025
Subjects: Enterprise Architecture
IT Strategy
AI Strategy
Digital Strategy
Large Language Models
LLMs

description: Enterprise Architecture (EA) documents capture strategic IT plans of organizations and may exhibit patterns that vary by industry. This paper explores the use of a large language model (LLM) to automatically analyze a cross-sector corpus of EA and IT strategy documents. We develop an approach using GPT-4 to encode documents into semantic embeddings and cluster them to reveal shared themes and sector-specific divergences. Our preliminary results indicate that the LLM can surface industry-specific concerns – for example, banking and insurance documents emphasize regulatory compliance and security, whereas manufacturing focuses on product innovation and agility. Clustering the LLM-derived embeddings grouped organizations by these thematic similarities, confirming the hypothesis. Visualizations such as similarity maps and word clouds are presented to illustrate the distinct clusters. This study demonstrates a novel method for comparative analysis of enter- prise architecture strategies across industries using generative AI, with implications for cross-industry knowledge transfer and benchmarking.
The Chandra Deep Field-South Survey: 4 Ms Source Catalogs
Creators: name: Xue, Y. Q.
name: Luo, B.
name: Brandt, W. N.
name: Bauer, F. E.
name: Lehmer, B. D.
name: Broos, P. S.
name: Schneider, D. P.
name: Alexander, D. M.
name: Brusa, M.
name: Comastri, A.
name: Fabian, A. C.
name: Gilli, R.
name: Hasinger, G.
name: Hornschemeier, A. E.
name: Koekemoer, A.
name: Liu, T.
name: Mainieri, V.
name: Paolillo, M.
name: Rafferty, D. A.
name: Rosati, P.
name: Shemmer, O.
name: Silverman, J. D.
name: Smail, I.
name: Tozzi, P.
name: Vignali, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: [abridged] We present point-source catalogs for the 4Ms Chandra Deep Field-South (CDF-S), which is the deepest Chandra survey to date and covers an area of 464.5 arcmin^2. We provide a main source catalog, which contains 740 X-ray point sources that are detected with wavdetect at a false-positive probability threshold of 1E-5 and also satisfy a binomial-probability source-selection criterion of P<0.004; this approach is designed to maximize the number of reliable sources detected. A total of 300 main-catalog sources are new compared to the previous 2Ms CDF-S main-catalog sources. We also provide a supplementary catalog, which consists of 36 sources that are detected with wavdetect at 1E-5, satisfy 0.004< P<0.1, and have an optical counterpart with R<24. Multiwavelength identifications, basic optical/infrared/radio photometry, and spectroscopic/photometric redshifts are provided for the X-ray sources. Basic analyses of the X-ray and multiwavelength properties of the sources indicate that >75% of the main-catalog sources are AGNs; of the 300 new main-catalog sources, about 35% are likely normal and starburst galaxies, reflecting the rise of normal and starburst galaxies at the very faint flux levels uniquely accessible to the 4Ms CDF-S. Near the center of the 4Ms CDF-S, the observed AGN and galaxy source densities have reached ~9800 and 6900 per square degree, respectively. The 4 Ms CDF-S reaches on-axis flux limits of ~9.1E-18 and 5.5E-17 erg/cm^2/s for the soft and hard bands, respectively. An increase in the CDF-S exposure by a factor of ~2-2.5 would provide further significant gains and probe key unexplored discovery space.
description: 31 pages, 24 figures, 8 tables, ApJS in press. Data and images available at http://www.astro.psu.edu/users/niel/cdfs/cdfs-chandra.html
Winding up superfluid in a torus via Bose Einstein condensation
Creators: name: Das, Arnab
name: Sabbatini, Jacopo
name: Zurek, Wojciech H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We simulate Bose-Einstein condensation (BEC) in a ring employing stochastic Gross-Pitaevskii equation and show that cooling through the critical temperature can generate spontaneous quantized circulation around the ring of the newborn condensate. Dispersion of the resulting winding numbers follows scaling law predicted by the Kibble-Zurek mechanism (KZM). Density growth also exhibits scaling behavior consistent with KZM. This paves a way towards experimental verification of KZM scalings, and experimental determination of critical exponents for the BEC transition.
description: 4+ pages, 4 Figs
Generative AI for Future Architecture Scenario Planning
Creators: name: EL HASSANI, SAMIR
Publisher: name: Zenodo
Year: 2025
Subjects: Enterprise Architecture
Generative AI
Large Language Models
Future-State Architecture
TOGAF
IT Strategy
AI Strategy
Digital Strategy

description: Scenario planning is essential in Enterprise Architecture (EA) for designing future organizational states. This paper explores the application of generative Artificial Intelligence (AI), specifically large language models (LLMs) such as OpenAI GPT-4, Anthropic Claude 2, and Meta LLaMA, in accelerating the modeling of enterprise architectures under diverse strategic scenarios. The study examines three strategic scenarios—digital channel diversification, internal operational optimization, and sustainability transformation—for a hypothetical mid-sized enterprise. Each LLM-generated architecture is evaluated against human expert-designed architectures using a novel evaluation framework covering strategic objective alignment, architectural complexity, quality (expert scores), and adherence to TOGAF principles.
A study of historical accuracy in the 1944 film Gaslight
Creators: name: Fritts, Valerie L.
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: subject: Costume design
subject: Costume--history
subject: Fashion--History

description: This thesis is an exploration of the contemporary aesthetic values placed on historical costume design. This thesis focuses on the movie Gaslight, set in 1885 and made in 1944, and compares the film version to actual historical garments of the period. It also discusses the factors that may have influenced the design of the film, such as studio management, actor image and marketing, the personal fashion sense of the designer, and the public’s overall expectations of historic accuracy. It further examines actual historical garments from the University of Texas’ Historical Collection for contemporary construction techniques, and includes a journal documenting the process of creating a historically accurate 1885 silhouette
BlueSci Issue 02 - Lent 2005
Creators: name: BlueSci
Publisher: name: Zenodo
Year: 2005

description: BlueSci

Issue 2: Lent 2005

Produced by CUSP &

Published by

Varsity Publications Ltd

Editor:Edwina Casebow

Managing Editor: Louise Woodley

Submissions Editor: Ewan Smith

Business Manager: Eve Williams

Design and Production

Production Managers:

Tom Walters, Jonathan Zwart

Pictures Editor:

Sheena Gordon

Production Team:

Victoria Leung,Tasleem Samji,

Helen Stimpson

Webmaster:

MarkWoodbridge

Section Editors

Cambridge News:

Laura Blackburn

Events:

Carolyn Dewey

Focus:

Ewan Smith

Features:

Joanna Maldonado-Saldivia,

Helen Stimpson, Owain Vaughan

On the Cover:

Jonathan Zwart

A Day in the Life of…:

Nerissa Hannink

Away from the Bench and Initiatives:

Tamzin Gristwood

History:

Emily Tweed

Arts and Reviews:

Owain Vaughan

Dr Hypothesis:

Rob Young

CUSP Chairman:

Björn Haßler
ГЛОКАЛИЗАЦИЯ - ГИБРИДНАЯ МОДЕЛЬ ГЛОБАЛИЗАЦИИ: ИНСТИТУТЫ И КАУЗАЛЬНОСТЬ
Creators: name: Дегтярев Александр Николаевич
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: общественно-экономические системы
макроэволюция
гибридная модель
глокализация
агентно-институциональные интеракции
суператтракторы
эквифинальность

description: Исследуется проблема макроэволюции мировых общественно-экономических систем, развивающихся по законам эквифинальности. Новым трендом этого направления развития является т.н. «глокализация» гибридная моделі) глобализации с локальным «национально-историческим лицом». В основе этого эволюционного процесса лежит многовекторная динамика трансформации институциональной основы социума, являющейся следствием агентно-институциональных интеракций, формирующих сеть суператтракторов, обеспечивающих соответствующий тренд на эволюционной траектории той или иной общественно-экономической системы государства или мирового региона. История мировых сообществ фиксирует как минимум три фундаментальных принципа глокальной социодинамики, отражающих степень конверсии базовых институтов: социальных, экономических и политических. Окончательная траектория эволюции общественно-экономических систем зависит от энергетики акторов людей, живущих в пределах конкретной локации, и их выбора, диктуемого их индивидуальными приоритетами (выбором) и институционализированным общественным сознанием.
АНАЛИЗ БАШКИРСКОЙ ИСТОРИИ В КОНТЕКСТЕ СОВЕТСКОЙ ИДЕОЛОГИИ: ПОПЫТКА РЕАНИМАЦИИ
Creators: name: Юсупов Рахимьян Галимьянович
name: Багаутдинов Радик Олегович
name: Кульшарипов Марат Махмутович
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: демография
башкирский народ
революции
перепись населения
культура
экономика
национальное движение
Республика Башкортостан

description: История башкир в конце XIX начале XX в. была сложной и противоречивой. В исторической литературе того времени преобладали недостоверные взгляды на демографию, культурное состояние, хозяйственную жизнь башкирского народа. Эти взгляды в начале 80-х гг., особенно, в 90-х гг. XX в. были преодолены. Однако в последнее время стали появляться работы, искажающие истинное состояние быта и культуры, демографии башкирского народа в начале XX века в духе восхваления достижений Октябрьской революции. В данной статье подвергается критике подобная трактовка переломного момента в истории башкирского народа.
An environment-dependent halo mass function as a driver for the early quenching of $z\geq1.5$ cluster galaxies
Creators: name: Ahad, Syeda Lammim
name: Muzzin, Adam
name: Bahé, Yannick M.
name: Hoekstra, Henk
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Many $z=1.5$ galaxies with a stellar mass ($M_{\star}$) $\geq 10^{10}\,\mathrm{M}_\odot$ are already quenched in both galaxy clusters ($>50$ per cent) and the field ($>20$ per cent), with clusters having a higher quenched fraction at all stellar masses compared to the field. A puzzling issue is that these massive quenched galaxies have stellar populations of similar age in both clusters and the field. This suggests that, despite the higher quenched fraction in clusters, the dominant quenching mechanism for massive galaxies is similar in both environments. In this work, we use data from the cosmological hydrodynamic simulations Hydrangea and EAGLE to test whether the excess quenched fraction of massive galaxies in $z = 1.5$ clusters results from fundamental differences in their halo properties compared to the field. We find that (i) at $10^{10} \leq$ $M_{\star}/\,\mathrm{M}_\odot\leq 10^{11}$, quenched fractions in the redshift range $1.5 < z < 3.5$ are consistently higher for galaxies with higher peak maximum circular velocity of the dark matter halo ($v_{\mathrm{max, peak}}$), and (ii) the distribution of $v_{\mathrm{max, peak}}$ is strongly biased towards higher values for cluster satellites compared to the field centrals. Due to this difference in the halo properties of cluster and field galaxies, secular processes alone may account for (most of) the environmental excess of massive quenched galaxies in high-redshift (proto) clusters. Taken at face value, our results challenge a fundamental assumption of popular quenching models, namely that clusters are assembled from an unbiased subset of infalling field galaxies. If confirmed, this would imply that such models must necessarily fail at high redshift, as indicated by recent observations.
description: 11 pages, 4+2 figures (including appendices), Accepted for publication in MNRAS
БАШКИРСКИЕ ПРЕДВОДИТЕЛИ ПУГАЧЕВСКОГО ВОССТАНИЯ
Creators: name: Кулбахтин Салават Назирович
name: Кулбахтин Назир Мурзабаевич
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: Пугачевское восстание
старшина
походный старшина
сотник
фельдмаршал
генерал
бригадир
полковник
главный полковник
атаман
главный атаман
есаул

description: Во время Пугачевского восстания башкиры выдвинули целую плеяду крупных предводителей. А.С. Пушкин подчеркивал решающую роль вовлечения башкир в восстание [1]. Массовое участие башкир в восстании признавали дореволюционные историки Н.Ф. Дубровин [2], П.К. Щебальский [3], Д.А. Анучин [4], Д. Мордовцев [5]; историки-краеведы Р.Г. Игнатьев [6], Н.Ф. Нефедов [7], М.В. Лоссиевский [8]. Академик М.Н. Покровский первым из советских историков давал высокую оценку массовому участию «конных башкир» в Пугачевском восстании [9]. Н.Н. Фирсов Крестьянскую войну 1773-1775 гг. назвал «башкирско-казацкой революцией» [10]. По утверждению ленинградских авторов, в Крестьянской войне 1773-1775 гг. «первое место среди нерусских народов по количеству участников, масштабам выступлений и, наконец, по роли в общей борьбе принадлежит башкирам» [11, с. 183-184]. По утверждению Х.И. Муратова, башкиры дали повстанческой армии 30 полковников [12]. Такое мнение было воспринято практически всеми советскими историками и господствовало до наших дней. Однако из башкирских предводителей Крестьянской войны более детальному изучению подвергалась лишь повстанческая деятельность Салавата Юлаева [13] и Кинзи Арсланова [14]. Значительная работа об участии башкир в Крестьянской войне и их предводителях проделана в фундаментальном исследовании И.М. Гвоздиковой [15], С.У Таймасова [16], Н.М. Кулбахтина [16], в томах «Башкирская энциклопедия» [17], энциклопедических изданиях «Салават Юлаев» [18] и «Военная история башкир» [19]. Источниковую базу исследования представляют материалы центральных архивохранилищ Москвы и Санкт-Петербурга. Особенно богатая информация сохранилась в фондах Российского государственного архива древних актов (РГАДА) и Российского государственного военно-исторического архива (РГВИА). Богатый материал имеется в опубликованных источниках «Документы Ставки Е.И. Пугачева, повстанческих властей и учреждений» [20], «Крестьянская война 1773-1775 гг. на территории Башкирии» [21] и «Воззвания и переписка вожаков Пугачевского движения в Поволжье и Приуралье» [22].
Rheology of associating polymers : effects of ionic and hydrogen bonding interactions
Creators: name: Tomkovic, Tanja
Publisher: name: University of British Columbia
Year: 2020

description: Associating polymers, consisting of relatively small functional groups capable of forming reversible physical associations, represent an important class of materials since they can be used in stimuli-responsive systems. They have found numerous applications in self-healing systems, and they can be used as shape memory polymers and biomaterials. Their complex behavior depends on the delicate interplay between the chemistry of functional groups and polymer dynamics. Therefore, it is essential to understand the physics of these complicated networks to exploit their full potential for important/innovative applications. Two classes of associating polymers, namely ion-containing polymers (ionomers), and hydrogen bonding polymers, were studied. Using a rotational rheometer and the Sentmanat extensional fixture, a full rheological characterization of several commercial ionomers and a series of novel amine-containing polynorbornenes and polycyclooctenes was conducted. Emphasis has been placed on the distribution of the relaxation times to identify the characteristics times such as reptation, Rouse times and the characteristic lifetime of the ionic and hydrogen bonding associations. These characteristic relaxation times were related to the structure of these polymers using developed scaling theories. Complete removal of ions was performed to produce copolymers in order to study the relative effects of ionic associations. It was demonstrated that ionic interactions increase the linear viscoelastic moduli and the viscosity by up to an order of magnitude and cause significant strain hardening effects in uniaxial extension. Similarly, for the novel hydrogen bonding polymers, the reversible associations significantly increase the rheological properties and thus delay their relaxation, causing chains to strain-harden before failure. Additionally, it was discovered that the amine-containing polymers exhibit outstanding self-healing properties. Optimal, fast self-healing response was achieved by varying the molecular weight and structure of these materials. Finally, the capillary flow of several commercial ionomers was studied both experimentally and numerically. The excess pressure drop due to entry, the effect of pressure on viscosity, and the possible slip effects on the capillary data analysis were examined. Rheological data were successfully fitted to a viscoelastic model developed by Kaye, Bernstein, Kearsley, and Zapas, (known as the K-BKZ model) to perform relevant capillary flow simulations.
ДВИЖЕНИЕ ЗА ОСВОЕНИЕ ЗАМОРСКИХ ДЕЛ (ЯНЪУ ЮНЬДУН) В КИТАЕ В ПЕРИОД ДИНАСТИИ ЦИН И ОРГАНИЗАЦИЯ ПРЕПОДАВАНИЯ ИНОСТРАННЫХ ЯЗЫКОВ (60-Е 80-Е ГГ. XIX В.)
Creators: name: Лапин Павел Андреевич
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: Цинская империя
движение за [Освоение] заморских дел
иностранные языки в Китае
преподавание русского языка

description: На фоне ослабления Цинской империи в 60-х гг. XIX в., вызванного включением государства в колониальную систему международных отношений, там сформировалось реформаторское течение движение за [Освоение] заморских дел. Прогрессисты призывали к активному изучению передового зарубежного опыта в интересах усиления империи на международной арене. С целью установления тесных контактов с зарубежными научно-образовательными центрами и военнопромышленными производствами, а также поддержания дипломатических связей с иностранцами в крупных городах Китая, власти учреждают первые современные школы иностранных языков. В статье рассматриваются особенности обучения китайских учащихся иностранным языкам. Делается вывод, что в ранний период иностранные языки не пользовались популярностью в китайском обществе, в том числе, по причине слабых перспектив трудоустройства и преобладавших китаецентристских представлений традиционного китайского чиновничества.
A Sample of Intermediate-Mass Star-Forming Regions: Making Stars at Mass Column Densities <1 g/cm^2
Creators: name: Arvidsson, Kim
name: Kerton, Charles R.
name: Alexander, Michael J.
name: Kobulnicky, Henry A.
name: Uzpen, Brian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In an effort to understand the factors that govern the transition from low- to high-mass star formation, we identify for the first time a sample of intermediate-mass star-forming regions (IM SFRs) where stars up to - but not exceeding - 8 solar masses are being produced. We use IRAS colors and Spitzer Space Telescope mid-IR images, in conjunction with millimeter continuum and CO maps, to compile a sample of 50 IM SFRs in the inner Galaxy. These are likely to be precursors to Herbig AeBe stars and their associated clusters of low-mass stars. IM SFRs constitute embedded clusters at an early evolutionary stage akin to compact HII regions, but they lack the massive ionizing central star(s). The photodissociation regions that demarcate IM SFRs have typical diameters of ~1 pc and luminosities of ~10^4 solar luminosities, making them an order of magnitude less luminous than (ultra)compact HII regions. IM SFRs coincide with molecular clumps of mass ~10^3 solar masses which, in turn, lie within larger molecular clouds spanning the lower end of the giant molecular cloud mass range, 10^4-10^5 solar masses. The IR luminosity and associated molecular mass of IM SFRs are correlated, consistent with the known luminosity-mass relationship of compact HII regions. Peak mass column densities within IM SFRs are ~0.1-0.5 g/cm^2, a factor of several lower than ultra-compact HII regions, supporting the proposition that there is a threshold for massive star formation at ~1 g/cm^2.
description: 61 pages, 6 tables, 20 figures. Accepted for publication in the Astronomical Journal
Phase Transition of Generalized Ferromagnetic Potts Model - Effect of Invisible States -
Creators: name: Tanaka, Shu
name: Tamura, Ryo
name: Kawashima, Naoki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the nature of the phase transition of the ferromagnetic Potts model with invisible states. The ferromagnetic Potts model with invisible states can be regarded as straightforward extension of the standard ferromagnetic Potts model. The invisible states contribute the entropy, however they do not affect the internal energy. They also do not change the symmetry which breaks at the transition temperature. The invisible states stimulate a first-order phase transition. We confirm that the first-order phase transition with spontaneous $q$-fold symmetry breaking for $q=2,3$, and 4 takes place even on two-dimensional lattice by Monte Carlo simulation. We also find that the transition temperature decreases and the latent heat increases as the number of invisible states increases.
description: 7 pages, 5 figures, Contribution to the Proceedings of STATPHYS-Kolkata VII, November 26-30, 2010
Hidden multiscale organization and robustness of real multiplex networks
Creators: name: Son, Gangmin
name: Ha, Meesoon
name: Jeong, Hawoong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Hidden geometry enables the investigation of complex networks at different scales. Extending this framework to multiplex networks, we uncover a novel kind of mesoscopic organization in real multiplex systems, named $\textit{clan}$, a group of nodes that preserve their local geometric arrangement across layers. Furthermore, we reveal the intimate relationship between the unfolding of clan structure and mutual percolation against targeted attacks, leading to an ambivalent role of clans: making a system fragile yet less prone to complete shattering. Finally, we confirm the correlation between the multiscale nature of geometric organization and the overall robustness. Our findings expand the significance of hidden geometry in network function, while also highlighting potential pitfalls in evaluating and controlling catastrophic failure of multiplex systems.
Testing the No-Hair Theorem with Sgr A*
Creators: name: Johannsen, Tim
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The no-hair theorem characterizes the fundamental nature of black holes in general relativity. This theorem can be tested observationally by measuring the mass and spin of a black hole as well as its quadrupole moment, which may deviate from the expected Kerr value. Sgr A*, the supermassive black hole at the center of the Milky Way, is a prime candidate for such tests thanks to its large angular size, high brightness, and rich population of nearby stars. In this review I discuss a new theoretical framework for a test of the no-hair theorem that is ideal for imaging observations of Sgr A* with very-long baseline interferometry (VLBI). The approach is formulated in terms of a Kerr-like spacetime that depends on a free parameter and is regular everywhere outside of the event horizon. Together with the results from astrometric and timing observations, VLBI imaging of Sgr A* may lead to a secure test of the no-hair theorem.
description: 8 pages, 7 figures, invited review for Advances in Astronomy, Special Issue: "Seeking for the Leading Actor on the Cosmic Stage: Galaxies versus Supermassive Black Holes"
New models of chaotic inflation in supergravity
Creators: name: Kallosh, Renata
name: Linde, Andrei
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a new class of models of chaotic inflation inspired by the superconformal approach to supergravity. This class of models allows a functional freedom of choice of the inflaton potential V = |f(ϕ)|^2. The simplest model of this type has a quadratic potential m^2ϕ^2/2. Another model describes an inflaton field with the standard symmetry breaking potential λ^2 (ϕ^2-v^2)^2. Depending on the value of v and on initial conditions for inflation, the spectral index n_s may take any value from 0.97 to 0.93, and the tensor-to-scalar ratio r may span the interval form 0.3 to 0.01. A generalized version of this model has a potential λ^2 (ϕ^α-v^α)^2. At large ϕand α> 0, this model describes chaotic inflation with the power law potential ϕ^{2α}. For α< 0, this potential describes chaotic inflation with a potential which becomes flat in the large field limit. We further generalize these models by introducing a nonminimal coupling of the inflaton field to gravity. The mechanism of moduli stabilization used in these models allows to improve and generalize several previously considered models of chaotic inflation in supergravity.
description: 11 pages, 5 figures
МАССОВАЯ КОЛЛЕКТИВИЗАЦИЯ И ЛОМКА ПРИВЫЧНЫХ ПРОИЗВОДСТВЕННЫХ ОТНОШЕНИЙ В КАЗАХСТАНЕ 1928-1936 ГГ.
Creators: name: Мухамедина Шамшия Мухамадиевна
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: Россия
Казахстан
коллективизация
партия
краевой комитет партии
индустриализация
сельское хозяйство
трансформация
кочевники
земледельцы
голод
конституция

description: Сельское хозяйство наиболее консервативная отрасль общественного производства. Сломать вековые представления единоличника о привычных ценностях и заставить его перейти в производственные кооперативы было равносильно революции. Поэтому неслучайно в официальных кругах предстоящую коллективизацию 24 млн. крестьянских хозяйств, в том числе кочевых и старожильческих, называли «революцией сверху». Казахстан, как и ряд других регионов, не был готов к проведению массовой коллективизации. Сельское хозяйство Казахстана испытывало крайнюю нужду в финансах, ветеринарных и агротехнических услугах. Российская Федерация объединяла 11 национальных республик и 15 автономных областей. Среди них Казахстан по-прежнему являлся крупным поставщиком товарного хлеба и молочно-продуктивного скота. Основным типом хозяйственного устройства здесь было единоличное производство. Казахский крайком партии, твердо следуя директивным указаниям ЦК ВКП(б), считал, что социально-экономические трудности, ставшие для Казахстана хроническими, можно устранить путем сплошного производственного кооперирования единоличных хозяйств. Однако для внедрения новой системы хозяйствования и нетрадиционных отраслей общественного производства в республике не было материальных, технических и, самое главное, социокультурных условий. Организаторы колхозного движения недооценивали тот факт, что модернизация сельского хозяйства является составной частью индустриальной цивилизации. Массовая коллективизация обернулась разорением сельскохозяйственных производителей, а еще страшнее голодом. В то же время в Казахстане ускоренными темпами строились индустриальные центры, изменился его социокультурный облик. Ломка традиционных производственных отношений и массовое обобществление единоличного производства изменили хозяйственно-организационную структуру и социально-культурный облик Советского Казахстана. В соответствии с Конституцией СССР от 5 декабря 1936 г. Казахская АССР стала союзной республикой.
Application of the extended pairing model to heavy isotopes
Creators: name: Gueorguiev, V. G.
name: Pan, Feng
name: Draayer, J. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Relative binding energies (RBEs) within three isotopic chains ($^{100-130}$Sn, $^{152-181}$Yb, and $^{181-202 }$Pb) have been studied using the exactly solvable extended pairing model (EPM) \cite{FPan04}. The unique pairing strength $G$, which reproduces the experimental RBEs, has been determined. Within EPM, $\log(G)$ is a smooth function of the model space dimension $\dim(A)$, as expected for an effective coupling strength. In particular, for the Pb and Sn isotopes $G$ can be described by a two parameter expression that is inversely proportional to the dimensionality of the model space, $G=α\dim(A)^{-β}$ with $β\approx 1$. PACS Classification: 21.10.Dr Binding energies, 71.10.Li Pairing interactions in model systems, and 21.60.Cs Shell model.
description: 2 pages, 1 figure, Contribution to the Fourth International Conference on Exotic Nuclei and Atomic Masses (ENAM'04), September 12-16, 2004, Callaway Gardens, Pine Mountain, Georgia
Effect of size, coating and concentration of zinc oxide nanoparticles on anaerobic digestion of municipal wastewater sludge
Creators: name: Olaya, Wesley Badith
Publisher: name: University of British Columbia
Year: 2019

description: The effect of average particle size (30 nm and 100 nm) and type (coated and uncoated) of ZnO nanoparticles (NPs) was studied on anaerobic digestion treatment process utilizing municipal wastewater sludge under mesophilic (35±2ºC) and thermophilic (55±2ºC) conditions. The effect was investigated in two stages with different digester feeding regime: (1) batch biochemical methane potential (BMP) assays, and (2) semi-continuously fed reactors. In the first stage with BMP assays, the inhibition of biogas (methane) producing cultures due to presence of ZnO NPs was investigated. A total number of 72, 160 mL serum bottles containing anaerobic inocula acclimatized to mixed sludge from Kelowna’s municipal wastewater treatment plant (WWTP) were operated for a period of about 90 days. Three different ZnO dosages were used leading to concentrations of 6 (low), 75 (medium) and 150 (high) mg NP/g mixed sludge total solids (TS). In the second stage, four mesophilic and four thermophilic semi-continuously fed digesters were set-up with an effective volume of 500 mL. The effect of NPs on the performance of biogas/methane production, organic solids removal, and biogas composition in terms of presence of odorous volatile sulfur compounds was assessed at the low dosing concentration. The eight digesters were operated during 60 days with a solid retention time of 20 days. The results showed that ZnO NPs do not inhibit methane forming bacteria at the lowest concentration regardless of their average particle size, but they are inhibitory at higher levels. Thermophilic bacteria were more sensitive to ZnO compared to mesophilic bacteria, as at elevated digester temperatures. Coated NPs created less inhibition than non-coated NPs, possibly due to decreased purity (Zn) of the inhibitor per mass in coated NPs. Batch reactors dosed with medium and high concentrations of coated NPs partially recovered after 25 days of digestion. For the non-coated ZnO NPs, only the mesophilic batch assays were able to recover at the medium concentration and the thermophilic reactors presented chronic inhibition and could not recover. As a beneficial outcome, coated ZnO NPs significantly reduced odour causing volatile sulfur compounds in digester headspace in comparison to the non-coated NPs by chemical precipitation.
Subversive Materials: Quilts as Social Text
Creators: name: Ball, Helen
Publisher: name: Alberta Journal of Educational Research
Year: 2002

description: Using a feminist-postmodernist approach to qualitative research, this article explores the crisis of representation in social science writing. The discursive practices of social scientific knowledge production are explored through the creation of quilts as social texts. Women and men who were recovering from childhood trauma were asked to represent their life experience in quilt blocks. Participants provided written descriptions of both their quilt blocks and the quilting process. I explore and experiment with the representation of voice(s) through the creation of a reflexive research process and experimental textual style. This article contributes to the dialogue on arts-based methodologies and the creation of alternative textual styles in social science writing.
description: Alberta Journal of Educational Research, Vol. 48 No. 3 (2002): Fall 2002
Temporal Link Prediction using Matrix and Tensor Factorizations
Creators: name: Dunlavy, Daniel M.
name: Kolda, Tamara G.
name: Acar, Evrim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The data in many disciplines such as social networks, web analysis, etc. is link-based, and the link structure can be exploited for many different data mining tasks. In this paper, we consider the problem of temporal link prediction: Given link data for times 1 through T, can we predict the links at time T+1? If our data has underlying periodic structure, can we predict out even further in time, i.e., links at time T+2, T+3, etc.? In this paper, we consider bipartite graphs that evolve over time and consider matrix- and tensor-based methods for predicting future links. We present a weight-based method for collapsing multi-year data into a single matrix. We show how the well-known Katz method for link prediction can be extended to bipartite graphs and, moreover, approximated in a scalable way using a truncated singular value decomposition. Using a CANDECOMP/PARAFAC tensor decomposition of the data, we illustrate the usefulness of exploiting the natural three-dimensional structure of temporal link data. Through several numerical experiments, we demonstrate that both matrix- and tensor-based techniques are effective for temporal link prediction despite the inherent difficulty of the problem. Additionally, we show that tensor-based techniques are particularly effective for temporal data with varying periodic patterns.
ХРОНИКА ПРОРЫВА ИЗ ОКРУЖЕНИЯ 16-Й ГВАРДЕЙСКОЙ КАВАЛЕРИЙСКОЙ ДИВИЗИИ 23-25 ФЕВРАЛЯ 1943 г.
Creators: name: Багаутдинов Руслан Айратович
name: Багаутдинов Айрат Маратович
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: Дебальцевский рейд
гвардии генерал-майор М.М. Шаймуратов
хроника боев 16-й гвардейской кавдивизии
подвиг и героизм воинов 16-й гвардейской кавдивизии и 7-го гвардейского кавкорпуса

description: В статье исследуется прорыв из окружения 16-й гвардейской кавалерийской дивизии (112-й Башкавдивизии) в составе 7-го гвардейского кавалерийского корпуса на завершающем этапе Дебальцевского рейда. Важной задачей, решенной в настоящей статье, является выявление неизвестных ранее фактов героизма и подвига гвардии генерал-майора М.М. Шаймуратова, воинов и конников 16-й гвкавдивизии. Захват в 4 утра 23 февраля 16-й гвкавдивизией под командованием генерала М.М. Шаймуратова Фромандировки, где была уничтожена артиллерийская батарея и разгромлен штаб 572-го полка 302-й пд; внезапная ночная атака 16-й гвкавдивизии на Фромандировку, которая внесла сумятицу в ряды немцев и артиллерийская батарея соседней немецкой 304-й пд с востока Штеровки обстреляла прямой наводкой 2-й батальон 571-го полка 302-й пд на востоке Фромандировки и практически уничтожила 7-ю немецкую роту; захват с утра 23 февраля 16-й гвкавдивизией деревни Юлино 1 и с 12.50 часов дня Юлино 2 и их удержание до 19.17 часов; уничтожение разведчиками 16-й гвкавдвизии утром 23 февраля в Юлино 2 6-й роты 2-го батальона 571 полка 302 пд; уничтожение подразделений противника в н.п. Стрюково, Артем, Петровеньки, Юлино 1, Юлино 2; офицеры и солдаты немецкой 302 пд назвали 16-ю гвардейскую кавдивизию за неожиданное появление и наступление утром 23 февраля 1943 г. «Злой дух». Все это подробно отражено в документах немецкого вермахта и в воспоминаниях немецких офицеров, но отсутствует или недостаточно раскрыто в советских архивных документах периода Великой Отечественной войны.
Density dependent gauge field inducing emergent SSH physics, solitons and condensates in a discrete nonlinear Schrödinger equation
Creators: name: Faugno, William N.
name: Salerno, Mario
name: Ozawa, Tomoki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate a discrete non-linear Schrödinger equation with dynamical, density-difference-dependent, gauge fields. We find a ground-state transition from a plane wave condensate to a localized soliton state as the gauge coupling is varied. Interestingly we find a regime in which the condensate and soliton are both stable. We identify an emergent chiral symmetry, which leads to the existence of a symmetry protected zero energy edge mode. The emergent chiral symmetry relates low and high energy solitons. These states indicate that the interaction acts both repulsively and attractively.
Entanglement Increases the Error-Correcting Ability of Quantum Error-Correcting Codes
Creators: name: Lai, Ching-Yi
name: Brun, Todd
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: If entanglement is available, the error-correcting ability of quantum codes can be increased. We show how to optimize the minimum distance of an entanglement-assisted quantum error-correcting (EAQEC) code, obtained by adding ebits to a standard quantum error-correcting code, over different encoding operators. By this encoding optimization procedure, we found several new EAQEC codes, including a family of [[n, 1, n; n-1]] EAQEC codes for n odd and code parameters [[7, 1, 5; 2]], [[7, 1, 5; 3]], [[9, 1, 7; 4]], [[9, 1, 7; 5]], which saturate the quantum singleton bound for EAQEC codes. A random search algorithm for the encoding optimization procedure is also proposed.
description: 39 pages, 10 tables
A Fine Line: Integrating Art and Fieldwork in the Study of Self-Conceptualization and Educational Experiences
Creators: name: Clark-Keefe, Kelly
Publisher: name: Alberta Journal of Educational Research
Year: 2002

description: This article explores the possibilities created when artistic principles and practices are integrated with the fieldwork process. I was interested in understanding the holistic and embodied expressions of self-conceptualization among six women academics from working- and poverty-class backgrounds. Artful “happenings” became a generative tool for inquiry and analysis and provided interpretive directions. I present one brief and a second more lengthy account of what my art-based approach to inquiry looked and felt like; a description of my approach to integrating art and fieldwork; and a discussion about the value that such a methodological approach can have.
description: Alberta Journal of Educational Research, Vol. 48 No. 3 (2002): Fall 2002
ЭТНОНАЦИОНАЛЬНАЯ МЕНТАЛЬНОСТЬ В ПОЭТИЧЕСКОМ ДИСКУРСЕ (НА ПРИМЕРЕ НОВЕЙШЕЙ КАРАЧАЕВО-БАЛКАРСКОЙ ПОЭЗИИ)
Creators: name: Керимова Раузат Абдуллаховна
Publisher: name: Проблемы востоковедения
Year: 2020
Subjects: карачаево-балкарская новейшая поэзия
этнокультурная идентичность
эволюция авторского самосознания
ментально-ценностное ядро

description: В статье исследуется проблема этнонациональной ментальности в аспекте новейшей карачаево-балкарской поэзии конца XX начала XXI в. Глобальные сдвиги в идеолого-политической и духовно-ценностной сферах жизни общества актуализировали проблему осмысления этнокультурного компонента в художественном творчестве. Безусловно, определенные элемешы фольклорного и этнографического составляющего постепенно начали исчезать, и человечество стало усваивать новые стандартные формы для творческой жизни. В связи с этим одной из актуальных задач литературоведения является исследование творчества новейшей генерации художников слова, произведения которых, по нашему мнению, отражают основные тенденции и особенности поэзии региона. Эволюция авторского самосознания в контексте культурных традиций рассмотрена в аспекте поэтико-тематических особенностей, этнокультурных факторов, характеризующих самобытность поэтической личности в современных реалиях. Впервые в научный оборот вводятся новые имена, анализ произведений которых дает возможность отчетливее проследить специфику взаимосвязей преемственности и новаторства, характер эволюции и перспективы развития художественного сознания в литературном регионе. В статье используется комплексный подход, комбинирующий элементы сравнительно-типологического, сопоставительно-типологического, системно-целостного и историко-литературного анализа. В условиях нового времени молодые поэты, каждый по-своему, откликаются на вызовы времени. Отрадно то, что при этом они остаются в русле традиционных ценностных понятий. Безусловно, новейшая лирика демонстрирует заметное обновление тематики, системы образов, высвечивая перспективу дальнейшего развитиярегиональной художественной мысли.
Intercalation of a Nonionic Surfactant (C10E3) bilayer into a Na-Montmorillonite Clay
Creators: name: Guegan, Regis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A nonionic surfactant, the tri-ethylene glycol mono n-decyl ether (C10E3), characterized by its lamellar phase state, was introduced in the interlayer of a Na-montmorillonite clay at several concentrations. The synthesized organoclays were characterized by Small Angle X-Ray Scattering in conjunction with Fourier Transform Infrared spectroscopy, and adsorption isotherms. Experiments showed that a bilayer of C10E3 was intercalated into the interlayer space of the naturally exchanged Na-montmorillonite, resulting in the aggregation of the lyotropic liquid crystal state in the lamellar phase. This behavior strongly differs from previous observations of confinement of nonionic surfactants in clays where the expansion of the interlayer space was limited to two monolayers parallel to the silicate surface and cationic surfactants in clays where the intercalation of organic compounds is introduced into the clay galleries through ion exchange. The confinement of a bilayer of C10E3 nonionic surfactant in clays offers new perspectives for the realization of hybrid nanomaterials since the synthesized organoclays preserve the electrostatic characteristics of the clays, thus allowing further ion exchange, while presenting at the same time a hydrophobic surface and a maximum opening of the interlayer space for the adsorption of neutral organic molecules of important size with functional properties.
description: 24 pages, 6 Figures
title: DEPRECATED: Noise source location in the built environment, using a simple microphone array
Creators: name: Latham, Michael
Publisher: name: University of Plymouth
Year: 1994

description: An inadequate level of noise attenuation provided by a building element is frequently the result of a lack of completeness in the construction. This often invisible fault acts as a noise source in a room, so in order to undertake remedial work the source position must be found. Recently, near field noise intensity measurement has been the popular method for noise source location in buildings. This method of using intensity studies requires a grid of readings to be taken. An alternative method, the one used in this work, employs a different strategy. Here, the source location is identified by direction scanning of time delays at a number of microphones arranged in a regular three-dimensional array. A novel arrangement of seven microphones, in the shape of a wheel-brace, is used to measure the differences in time taken for the sound waves to travel from a source to the various microphones. The magnitudes of these time differences are combined and converted into the coordinates of the source, relative to an origin which is placed at the centre of the wheel-brace array. The mathematics for this conversion is derived and the errors in the experimental arrangement discussed. The use of this airay for the identification of faults in built structures is explored. A significant contribution is made to the knowledge of noise source location in buildings, since the microphone array is used to demonstrate the location of a noise source irrespective of the direction of the incoming noise. The use of computerised data collection is described for a budget system, where time was cheap, but equipment expensive. The accuracy of the technique would be improved considerably if state-of-the-art electronics were used to measure the lime differences. The feasibility, advantages and potential performance of a modem system, that could be assembled today, is described and discussed.