cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ИСПОЛЬЗОВАНИЕ ТЕХНОЛОГИИ LEAFLET В WEB-РЕСУРСАХ НА ПРИМЕРЕ ЛЕСНОГО АТЛАСА КРАСНОДАРСКОГО КРАЯ
Creators: name: Чернец З.А.
name: Кузякина М.В.
name: Пелина А.Н.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: HTML
JavaScript
Leaflet
лесной атлас
интерактивный атлас.

description: В статье рассматривается технология разработки интерактивного атласа с использованием html-разметки текста и библиотек Leaflet. На сайт было внедрено ряд дополнительных плагинов, позволяющих расширить возможности работы с картой, упростить чтение и проводить простейшие измерения по карте. Имеются возможности переключения слоёв подложки и векторов, измерения расстояний, просмотр атрибутов объекта по клику мыши.
Additional file 1 of Genetics of the phenotypic evolution in sheep: a molecular look at diversity-driving genes
Creators: name: Kalds, Peter
name: Zhou, Shiwei
name: Gao, Yawei
name: Cai, Bei
name: Huang, Shuhong
name: Chen, Yulin
name: Wang, Xiaolong
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. High-throughput sequencing outcomes for candidate genes linked with the sheep tail phenotype pattern. Outcomes of genomic a and transcriptomic b approaches. Figure S2. An example of coat color variation in sheep. Coat colors and markings in Shetland sheep breed. Poster copyright and published with the consent of the Shetland Sheep Society ( www.shetland-sheep.org.uk ). Figure S3. CRISPR/Cas9-generated ASIP knockout Chinese Merino sheep. a Badger-face with black body coat color. b Brown coat color with light ventral pigmentation. c Black-white spotted coat color. d Wild-type phenotype. Figure adapted from Zhang et al. [83]. Figure S4. Phenotypic variations of face coat color in sheep. A representative example from Chinese Tan sheep with varied face coat colors, including white, light brown spots, dark brown spots, brown, black spots, black marks, and black. Photos were taken by P.K. at Ningxia Tianyuan Tan Sheep Farm, Hongsibu, China. Figure S5. Phenotypic variations of nipple (teat) number in sheep. A representative example from Chinese Tan sheep, including a normal nipple number (a pair of nipples) and supernumerary nipples [b with three nipples and c four nipples]. Photos were taken by P.K. Figure S6. Location of vertebrae in the sheep skeleton. This includes cervical, thoracic, lumbar, sacral, and coccygeal vertebrae (item source: PNGITEM).
Sampling in spaces of entire functions of exponential type in $\mathbb C^{n+1}$
Creators: name: Monguzzi, Alessandro
name: Peloso, Marco M.
name: Salvatori, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 32A15, 32A37, 32A50, 46E22

description: In this paper we consider the question of sampling for spaces of entire functions of exponential type in several variables. The novelty resides in the growth condition we impose, that is, that their restriction to a hypersurface is square integrable with respect to a natural measure. The hypersurface we consider is the boundary $b\mathcal U$ of the Siegel upper half-space $\mathcal U$ and it is fundamental that $b\mathcal U$ can be identified with the Heisenberg group $\mathbb H_n$. We consider entire functions in $\mathbb C^{n+1}$ of exponential type with respect to the hypersurface $b\mathcal U$ whose restriction to $b\mathcal U$ are square integrable with respect to the Haar measure on $\mathbb H_n$. For these functions we prove a version of the Whittaker--Kotelnikov--Shannon Theorem. Instrumental in our work are spaces of entire functions in $\mathbb C^{n+1}$ of exponential type with respect to the hypersurface $b\mathcal U$ whose restrictions to $b\mathcal U$ belong to some homogeneous Sobolev space on $\mathbb H_n$. For these spaces, using the group Fourier transform on $\mathbb H_n$, we prove a Paley--Wiener type theorem and a Plancherel--Pólya type inequality.
Relating two Hopf algebras built from an operad
Creators: name: Chapoton, Frédéric
name: Livernet, Muriel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 06, 16W, 18D50

description: Starting from an operad, one can build a family of posets. From this family of posets, one can define an incidence Hopf algebra. By another construction, one can also build a group directly from the operad. We then consider its Hopf algebra of functions. We prove that there exists a surjective morphism from the latter Hopf algebra to the former one. This is illustrated by the case of an operad built on rooted trees, the $\NAP$ operad, where the incidence Hopf algebra is identified with the Connes-Kreimer Hopf algebra of rooted trees.
description: 21 pages, use graphics, 12 figures Version 2 : references added, minor changes. This version has not been corrected after submission. The final and corrected version will appear in IMRN and can be obtained from the authors
ИССЛЕДОВАНИЕ АСТЕРОИДОВ, ОПАСНО СБЛИЖАЮЩИХСЯ С ЗЕМЛЕЙ В 2020 ГОДУ
Creators: name: Иванов А.Л.
name: Иванов В.А.
name: Лысенко В.Е.
name: Яковенко Н.А.
name: Скачедуб А.В.
name: Горбунов Н.С.
name: Курбатов Г.А.
name: Щукин П.О.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: астероид
орбита
звездная величина
астероиднокометная опасность.

description: 2020 год стал богатым на прохождение космических объектов естественного происхождения – астероидов, потенциально опасных для Земли. В статье приведены результаты наблюдений, полученные в Астрофизической обсерватории Кубанского государственного университета.
Pruning young trees - Przycinanie drzew młodych
Creators: name: International Society Of Arboriculture
Publisher: name: Zenodo
Year: 2013
Subjects: trees
pruning

description: Odpowiednie przycinanie jest niezbędne dla rozwoju drzew o silnej budowie i pożądanym kształcie. Drzewa poddawane działaniu właściwych środków pielęgnacyjnych za młodu będą wymagały mniej przycinania w okresie dojrzewania.
Entanglement and topological entropy of the toric code at finite temperature
Creators: name: Castelnovo, C.
name: Chamon, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We calculate exactly the von Neumann and topological entropies of the toric code as a function of system size and temperature. We do so for systems with infinite energy scale separation between magnetic and electric excitations, so that the magnetic closed loop structure is fully preserved while the electric loop structure is tampered with by thermally excited electric charges. We find that the entanglement entropy is a singular function of temperature and system size, and that the limit of zero temperature and the limit of infinite system size do not commute. From the entanglement entropy we obtain the topological entropy, which is shown to drop to half its zero-temperature value for any infinitesimal temperature in the thermodynamic limit, and remains constant as the temperature is further increased. Such discontinuous behavior is replaced by a smooth decreasing function in finite-size systems. If the separation of energy scales in the system is large but finite, we argue that our results hold at small enough temperature and finite system size, and a second drop in the topological entropy should occur as the temperature is raised so as to disrupt the magnetic loop structure by allowing the appearance of free magnetic charges. We interpret our results as an indication that the underlying magnetic and electric closed loop structures contribute equally to the topological entropy (and therefore to the topological order) in the system. Since each loop structure \emph{per se} is a classical object, we interpret the quantum topological order in our system as arising from the ability of the two structures to be superimposed and appear simultaneously.
description: (15 pages, 5 figures) v2: updated references and acknowledgments
Correlation between vibrational anomalies and emergent anharmonicity of local potential energy landscape in metallic glasses
Creators: name: Yang, Zeng-Yu
name: Wang, Yun-Jiang
name: Zaccone, Alessio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The boson peak (BP) is a universal feature in the Raman and inelastic scattering spectra of both disordered and crystalline materials. The current paradigm presents the boson peak as the result of a Ioffe-Regel crossover between ballistic (phonon) and diffusive-type excitations, where the loss of coherence of phonons is described as a purely harmonic process due to structural disorder. This "harmonic disorder" paradigm for the BP has never been challenged or tested at the atomistic level. Here, through a set of atomistically-resolved characterizations of amorphous metallic alloys, we uncover a robust inverse proportionality between the intensity of boson peak and the activation energy of excitations in the potential energy landscape (PEL). Larger boson peak is linked with shallower basins and lower activation barriers and, consequently, with strongly anharmonic sectors of the PEL. Numerical evidence from atomistic simulations indicates that THz atomic vibrations contributing the most to the BP in atomic glasses are strongly anharmonic, as evidenced through very large values of the atomic- and mode-resolved Grüneisen parameter found for the atomic vibrations that constitute the BP. These results provide a direct bridge between the vibrational spectrum and the topology of the PEL in solids, and point towards a new "giant anharmonicity" paradigm for both generic disordered materials and for the phonon-glass problem in emerging materials for energy applications. In this sense, disorder and anharmonicity emerge as the two sides of the same coin.
Probing the Spins of Supermassive Black Holes with Gravitational Waves from Surrounding Compact Binaries
Creators: name: Liu, Bin
name: Lai, Dong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Merging compact black-hole (BH) binaries are likely to exist in the nuclear star clusters around supermassive BHs (SMBHs), such as Sgr A$^\ast$. They may also form in the accretion disks of active galactic nuclei. Such compact binaries can emit gravitational waves (GWs) in the low-frequency band (0.001-1 Hz) that are detectable by several planned space-borne GW observatories. We show that the orbital axis of the compact binary may experience significant variation due to the frame-dragging effect associated with the spin of the SMBH. The dynamical behavior of the orbital axis can be understood analytically as a resonance phenomenon. We show that rate of change of the binary orbital axis encodes the information on the spin of the SMBH. Therefore detecting GWs from compact binaries around SMBHs, particularly the modulation of the waveform associated with the variation of the binary orbital axis, can provide a new probe on the spins of SMBHs.
description: Published in ApJ
Statistical analysis plan: Insulin Glargine compared to Insulin Degludec on Cardiovascular outcomes. Emulation of a Target Trial in a DEVOTE inspired population and in a non-trial population using the Danish registries.
Creators: name: Yazdanfard, Puriya Daniel Wuertz
Publisher: name: Zenodo
Year: 2025

description: Analysis plan for a target trial emulation in a DEVOTE inspired population and in a non-trial population

Part of the EU funded project REDDIE in work package 4
ИССЛЕДОВАНИЕ ТВЕРДОГО РАСТВОРА AlGaInAsSb, ВЫРАЩЕННОГО НА ПОДЛОЖКАХ INSB
Creators: name: Лунина М.Л.
name: Столяров М.С.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: термодинамические параметры твердого раствора AlGaInAsSb
период кристаллической решетки
плотность дислокаций
ширина запрещенной зоны
скорость роста.

description: В рамках модели простых растворов проведен анализ гетерофазных равновесий в системе Al-Ga-In-As-Sb. Рассчитаны границы существования твердого раствора AlGaInAsSb и определены термодинамические ограничения, характеризующие его выращивание. На основе проведенного анализа методом зонной перекристаллизации градиентов температуры выращен твердый раствор AlGaInAsSb на подложке InSb. Показано, что введение висмута в твердый раствор AlGaInAsSb расширяет область его существования, уменьшает ширину запрещенной зоны, увеличивает относительное рассогласование периодов решеток слоя и подложки, при концентрациях Bi > 0,3 ат. % и уменьшает пределы составов изопериодных гетероструктур AlGaInAsSb/InSb.
Markov Genealogy Processes
Creators: name: King, Aaron A.
name: Lin, Qianying
name: Ionides, Edward L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Populations and Evolution (q-bio.PE)
subject: Quantitative Methods (q-bio.QM)
subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: 60J99

description: We construct a family of genealogy-valued Markov processes that are induced by a continuous-time Markov population process. We derive exact expressions for the likelihood of a given genealogy conditional on the history of the underlying population process. These lead to a nonlinear filtering equation which can be used to design efficient Monte Carlo inference algorithms. We demonstrate these calculations with several examples. Existing full-information approaches for phylodynamic inference are special cases of the theory.
An Atlas of the circumnuclear regions of 75 Seyfert galaxies in the near-UV with HST Advanced Camera for Surveys
Creators: name: Marín, Víctor M. Muñoz
name: Delgado, Rosa M. González
name: Schmitt, Henrique R.
name: Fernandes, Roberto Cid
name: Pérez, Enrique
name: Storchi-Bergmann, Thaisa
name: Heckman, Tim
name: Leitherer, Claus
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an atlas of the central regions of 75 Seyfert galaxies imaged in the near-UV with the Advanced Camera for Surveys of the Hubble Space Telescope at an average resolution of ~10pc. These data complement archival high resolution data from the Space Telescope at optical and near-IR wavelengths, creating an extremely valuable dataset for astronomers with a broad range of scientific interests. Our goal is to investigate the nature of the near-UV light in these objects, its relation to the circumnuclear starburst phenomenon, and the connection of this to the evolution and growth of the galaxy bulge and central black hole. In this paper, we describe the near-UV morphology of the objects and characterize the near-UV emission. We estimate the size and the luminosity of the emitting regions and extract the luminosity profile. We also determine the presence of unresolved compact nuclei. In addition, the circumnuclear stellar cluster population is identified, and the contribution of the stellar clusters to the total light, at this wavelength, is estimated. The size of the sample allows us to draw robust statistical conclusions. We find that {Seyfert 1} galaxies are completely dominated by its bright and compact nucleus, that remains point-like at this resolution, while we find almost no unresolved nucleus in Seyfert 2. The Seyfert types 1 and 2 are quite segregated in an asymmetry vs compactness plot. Stellar clusters are found somewhat more frequently in Sy2 (in ~70% of the galaxies) than in Sy1 (~57%), and contribute more to the total light in Sy2, but this two differences seem to be mostly due to the large contribution of the compact nucleus in Sy1, as the luminosity distribution of the clusters is similar in both Sy types.
description: Accepted for publication in AJ, 58 pages, 20 figures. High-resolution figures for all the objects are available at http://www.iaa.es/~manuel/publications/paper01.html
Single photon emission from individual nanophotonic-integrated colloidal quantum dots
Creators: name: Eich, Alexander
name: Spiekermann, Tobias C.
name: Gehring, Helge
name: Sommer, Lisa
name: Bankwitz, Julian R.
name: Schrinner, Philip P. J.
name: Preuß, Johann A.
name: de Vasconcellos, Steffen Michaelis
name: Bratschitsch, Rudolf
name: Pernice, Wolfram H. P.
name: Schuck, Carsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms. However, the high-yield integration of large numbers of individually addressable colloidal quantum dots in a photonic circuit has remained an outstanding challenge. Here, we report on integrating individual colloidal core-shell quantum dots (CQDs) into a nanophotonic network that allows for excitation and efficient collection of single-photons via separate waveguide channels. An iterative electron beam lithography process provides a viable method to position single emitters at predefined positions in a photonic integrated circuit with yield that approaches unity. Our work moves beyond the bulk optic paradigm of confocal microscopy and paves the way for supplying chip-scale quantum networks with single photons from large numbers of simultaneously controllable quantum emitters.
description: 17 pages, 10 figures
МАГНИТНЫЕ СВОЙСТВА БИОТКАНЕЙ
Creators: name: Захаров Л.М.
name: Кругликова А.А.
name: Пыхалова Н.Е.
name: Сухих С.А.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: диа– и парамагнетики
трансформатор Тесла
индукция магнитного поля
сила Ампера.

description: Авторы предлагают ряд опытов, подчеркивающие свойства биоткани, объясняющие сущность диа– и парамагнетизма и объясняющие природу электромагнитной индукции Фарадея. Возникающий вихревой ток приводит к разогреву диа– и парамагнетиков и к действию на них силы Ампера.
Least-Squares ReLU Neural Network (LSNN) Method For Scalar Nonlinear Hyperbolic Conservation Law
Creators: name: Cai, Zhiqiang
name: Chen, Jingshuang
name: Liu, Min
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We introduced the least-squares ReLU neural network (LSNN) method for solving the linear advection-reaction problem with discontinuous solution and showed that the method outperforms mesh-based numerical methods in terms of the number of degrees of freedom. This paper studies the LSNN method for scalar nonlinear hyperbolic conservation law. The method is a discretization of an equivalent least-squares (LS) formulation in the set of neural network functions with the ReLU activation function. Evaluation of the LS functional is done by using numerical integration and conservative finite volume scheme. Numerical results of some test problems show that the method is capable of approximating the discontinuous interface of the underlying problem automatically through the free breaking lines of the ReLU neural network. Moreover, the method does not exhibit the common Gibbs phenomena along the discontinuous interface.
НЕКОТОРЫЕ ОСОБЕННОСТИ ВЛИЯНИЯ МАГНИТНЫХ БУРЬ НА ОРГАНИЗМ ЧЕЛОВЕКА
Creators: name: Захаров Ю.Б.
name: Кругликова А.А.
name: Пыхалова Н.Е.
name: Сухих С.А.
name: Захаров М.Ю.
name: Ненашев Д.С.
name: Шилов В.П.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: солнечная активность
магнитные бури
кровь
монетные столбики
метеозависимость
ишемическая болезнь сердца.

description: В статье рассматривается изменение магнитного поля Земли вовремя магнитных бурь. Показано, что в разное время суток изменение скорости изменения магнитного потока различно, особенно в ночное время. Это разное изменение магнитного поля в ночное время приводит к закупорке кровеносных сосудов монетными столбиками эритроцитов, что обуславливает сердечную ишемию.
Nefropatía diabética
Creators: name: Esteban-de-la-Rosa, Rafael-José
Publisher: name: Zenodo
Year: 2015

description: En esta ponencia se revisa la epidemiología de la nefropatía diabética, los factores relacionados con la progresión de la enfermedad renal crónica, y cómo podemos ofrecer soluciones desde una perspectiva renal empleando medicamentos como los inhibidores del cotransportador sodio-glucosa (iSGLT2).
Spatial patterns in optical lattices submitted to gauge potentials
Creators: name: Goldman, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the vortex formation in optical lattices submitted to artificial gauge potentials. We compute the superfluid density for Abelian and non-Abelian gauge potentials with a mean-field approach of the Bose-Hubbard model and we determine the rule describing the number of vortices as a function of the effective magnetic flux. This simple rule is represented by a remarkably rich figure that represents the superfluid density as a function of the flux. The phenomena which emanate from this work should be observed experimentally in optical lattices within which atom tunneling is laser-assisted and described by commutative or non-commutative tunneling operators.
description: 5 pages
Face mask perception during the COVID-19 pandemic: an observational study of Russian online social network VKontakte
Creators: name: Chkhartishvili, Alexander G.
name: Gubanov, Dmitry A.
name: Kozitsin, Ivan V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: This cross-sectional study characterizes users' attitudes towards the face mask requirements introduced by the Russian government as a response to the COVID-19 pandemic. We study how they relate to other users' characteristics such as age, gender, and political attitudes. Our results indicate that men and elder individuals - demographic groups that are most vulnerable to COVID-19 -- underestimate the benefits of wearing face masks. We also discovered that users in opposition to the Russian government highly approve of this anti-COVID-19 measure -- an oppositionist will approve of the face mask requirements with the probability of 0.95. For those who support the Russian government, the odds of approval are merely 0.45.
description: 6 pages, 2 tables, 3 figures
ПРЕИМУЩЕСТВО МЕТОДА ПЕРФУЗИОННОЙ СЦИНТИГРАФИИ МИОКАРДА ПРИ ВЫЯВЛЕНИИ ИШЕМИЧЕСКОЙ БОЛЕЗНИ СЕРДЦА У ЖЕНЩИН
Creators: name: Пинчук Н.Е.
name: Богатов Н.М.
name: Славгородский Р.А.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: ОФЭКТ
ЭКГ
КАГ
ИБС.

description: Проанализированы диагностические возможности ОФЭКТ в сравнении с ЭКГ, ЭХО-КГ, КАГ при выявлении ИБС у женщин. Показано, что для выявляемости очагово-рубцовых изменений наименьшей чувствительностью обладает КАГ, наименьшей специфичностью – ЭКГ, при этом ЭКГ обладает наименьшей прогностической ценностью положительного результата. Для выявляемости ишемической реакции чувствительность ЭКГ в 4 раза меньше, чем КАГ, и в 6,3 раза меньше, чем ОФЭКТ.
New tree planting - Sadzenie nowych drzew
Creators: name: International Society Of Arboriculture
Publisher: name: Zenodo
Year: 2013
Subjects: tree planting

description: Informacje na temat właściwych praktyk sadzenia drzew oraz dziewięcioetapowa instrukcja w celu prawidłowego sadzenia i przyjmowania się drzew - Information on proper practices for planting a tree with a nine-step approach to successful planting and establishment
Zoom-in cosmological hydrodynamical simulation of a star-forming, barred spiral galaxy at redshift z=2
Creators: name: Vincenzo, Fiorenzo
name: Kobayashi, Chiaki
name: Tiantian Yuan
Publisher: name: Zenodo
Year: 2019

description: We present the results of a high-resolution zoom-in cosmological chemodynamical simulation for the formation and evolution of a star forming, barred, spiral galaxy, from the early conditions in the primordial Universe to redshift z = 2, at the peak of the cosmic star formation rate. The seed of our simulated disc galaxy is represented by the central bulge, which formed at high redshift from the interaction and coalescence of many dense, gas-rich clumps; in particular, the bulge is constituted by an X-shaped bar, in which the particles of the simulation follow "figure-of-eight" orbits as functions of time. The galaxy disc develops from redshift z =3.5, with two trailing and persistent spiral arms being present down to redshift z=1.8. The star formation activity in the galaxy happens, at all redshifts, in the bulge and in several clumps along the spiral arms, with the clumps increasing in number and size as the simulation approaches z=2. We find that stellar populations with decreasing age are concentrated towards lower galactic latitudes, being more supported by rotation, and having also lower velocity dispersion; furthermore, the stellar populations on the thin disc are the youngest and have the highest average metallicities. The specific angular momentum of the gas steadily increases as a function of redshift, at all radii on the thin disc, and the rotational velocity dispersion of the gas on the thin disc is always lower than 50 km/s, at all redshifts. Moreover, we predict that the newly-born stellar populations of the galaxy leave the spiral arms – dispersing in the galaxy disc – over a typical time scale of 193 Myr, irrespective of redshift. Finally, the pattern of the spiral arms rotates like a solid body with constant angular velocity, propagating like a perturbation on the thin disc. Our simulation may represent an important step forward in characterising the dynamics of disc galaxies at high-redshift in the era of large surveys, by making use of chemodynamical simulations, embedded in a full cosmological framework.
Scaling limits for random fields with long-range dependence
Creators: name: Kaj, Ingemar
name: Leskelä, Lasse
name: Norros, Ilkka
name: Schmidt, Volker
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F17 (Primary) 60G60, 60G18 (Secondary)

description: This paper studies the limits of a spatial random field generated by uniformly scattered random sets, as the density $λ$ of the sets grows to infinity and the mean volume $ρ$ of the sets tends to zero. Assuming that the volume distribution has a regularly varying tail with infinite variance, we show that the centered and renormalized random field can have three different limits, depending on the relative speed at which $λ$ and $ρ$ are scaled. If $λ$ grows much faster than $ρ$ shrinks, the limit is Gaussian with long-range dependence, while in the opposite case, the limit is independently scattered with infinite second moments. In a special intermediate scaling regime, there exists a nontrivial limiting random field that is not stable.
description: Published at http://dx.doi.org/10.1214/009117906000000700 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
ПРОБЛЕМЫ И ПУТИ РЕШЕНИЯ ЦИФРОВИЗАЦИИ АБОНЕНСТКОГО ДОСТУПА НА ТЕЛЕКОММУНИКАЦИОННЫХ СЕТЯХ
Creators: name: Белов Ю.Н.
name: Андрияш А.В.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: волоконно-оптическая линия связи
маршрутизаторы
коммутаторы
базовая станция
радиорелейная связь
топология.

description: В статье проанализированы проблемы цифрового неравенства в России и их негативное влияние на общество. Рассмотрен реализуемый в России с 2021 года проект УЦН 2.0, который устраняет главную проблему цифрового неравенства отсутствие в малонаселённых пунктах доступа к Интернету.
ФИЗИКА ЭВОЛЮЦИИ ИНТЕЛ-СИСТЕМЫ ЧЕЛОВЕКА И ГЛОБАЛЬНОЙ БИОТЕХНИЧЕСКОЙ ИНФОРМАЦИОННОЙ СИСТЕМЫ
Creators: name: Еремин А.Л.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: биофизика развития и эволюции
нейроинформатика
психофизика
нейрофизика
параметры интеллектуальных систем
ноогенез.

description: 150 лет с первой публикации, посвященной ноогенезу – эволюции интеллекта. Но только в XXI веке, благодаря развертке цивилизации и результатам фундаментальным исследований в физике, биологии, медицине и междисциплинарных сферах, стало возможным определение количественных измерений некоторых параметров, способствующих в естественных науках пониманию эволюции интеллектуальных систем.
Predicting the connectivity of primate cortical networks from topological and spatial node properties
Creators: name: Costa, Luciano da F
name: Kaiser, Marcus
name: Hilgetag, Claus C
Publisher: name: arXiv
Year: 2007
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The organization of the connectivity between mammalian cortical areas has become a major subject of study, because of its important role in scaffolding the macroscopic aspects of animal behavior and intelligence. In this study we present a computational reconstruction approach to the problem of network organization, by considering the topological and spatial features of each area in the primate cerebral cortex as subsidy for the reconstruction of the global cortical network connectivity. Starting with all areas being disconnected, pairs of areas with similar sets of features are linked together, in an attempt to recover the original network structure. Inferring primate cortical connectivity from the properties of the nodes, remarkably good reconstructions of the global network organization could be obtained, with the topological features allowing slightly superior accuracy to the spatial ones. Analogous reconstruction attempts for the C. elegans neuronal network resulted in substantially poorer recovery, indicating that cortical area interconnections are relatively stronger related to the considered topological and spatial properties than neuronal projections in the nematode. The close relationship between area-based features and global connectivity may hint on developmental rules and constraints for cortical networks. Particularly, differences between the predictions from topological and spatial properties, together with the poorer recovery resulting from spatial properties, indicate that the organization of cortical networks is not entirely determined by spatial constraints.
ЧИСЛЕННОЕ ПРОЕКТИРОВАНИЕ МОДОВОГО СОСТАВА ИОНООБМЕННЫХ ОПТИЧЕСКИХ ВОЛНОВОДОВ
Creators: name: Прохоров В.П.
name: Яковенко Н.А.
Publisher: name: Современные проблемы физики, биофизики и инфокоммуникационных технологий
Year: 2021
Subjects: волноводная фотоника
ионообменные оптические волноводы
градиентный профиль показателя преломления
эффективная глубина волновода
поверхностное значение показателя преломления волновода
время и температура ионообменной диффузии
волноводные моды.

description: Рассмотрено получение полуэмпирического соотношения связи между ключевыми параметрами технологического процесса ионного обмена и модовым составом {m} получаемых градиентных волноводов F(C 0 , T, t, , m) = 0 (C 0 – концентрация ионов диффузанта в солевом расплаве, t и T – время и температура ионообменной диффузии,  – длина волны используемого излучения), позволяющего прогнозировать технологические параметры изготовления одномодовых или маломодовых ионообменных волноводов в стеклах.
Labor Union Organizing in the Archives
Creators: name: Bhatia, Sharmila
name: Delinger, Kevin
name: Eidson, Jennifer
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: Labor unions
Labor history
AFSCME
AFGE
Bakery, Confectionery, Tobacco Workers and Grain Millers International Union (BCTGM) records
Collective Bargaining Agreement
Archivist

description: Unions are organized to advocate for workers' rights in the workplace, whether that be in a factory, an academic library, or a federal archives. Panelists spoke about their perspectives on unions in libraries and archives and the union history of their organizations. What is it like to be a union member during a time when there are actions to undermine national and international unions? How does this impact the ability of the union to effectively negotiate with management? Organizing efforts in the Bakers Union, a key labor collection at the University of Maryland, will be highlighted as an interesting example from the 1970s, before the Reagan administration, to show the differences in the labor situation when compared to now.
Affine linear and D4 symmetric lattice equations : symmetry analysis and reductions
Creators: name: Tongas, A.
name: Tsoubelis, D.
name: Xenitidis, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider lattice equations on ${\mathds{Z}}^2$ which are autonomous, affine linear and possess the symmetries of the square. Some basic properties of equations of this type are derived, as well as a sufficient linearization condition and a conservation law. A systematic analysis of the Lie point and the generalized three- and five-point symmetries is presented. It leads to the generic form of the symmetry generators of all the equations in this class, which satisfy a certain non-degeneracy condition. Finally, symmetry reductions of certain lattice equations to discrete analogues of the Painlevé equations are considered.
description: 31 pages
Design and recording of holographic diffuser for controlled angular distribution of light
Creators: name: SARMA, SUBHRA SANKHA
Publisher: name: figshare
Year: 2022
Subjects: subject: 20504 Photonics, Optoelectronics and Optical Communications
subject: FOS: Physical sciences

description: Now-a-days diffusers play a pivotal role in many applications. It is desirable in many applications that angular distribution of scattered light must be controlled in a particular manner. Present paper reports on design and recording of holographic diffusers for controlling the angular distribution of the scattered beam. Experimental results from recorded holographic diffuser have been compared with the conventional diffuser.
Unconventional Superconductivity in Magic-Angle Twisted Trilayer Graphene
Creators: name: Fischer, Ammon
name: Goodwin, Zachary A. H.
name: Mostofi, Arash A.
name: Lischner, Johannes
name: Kennes, Dante M.
name: Klebl, Lennart
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magic-angle twisted trilayer graphene (MATTG) recently emerged as a highly tunable platform for studying correlated phases of matter, such as correlated insulators and superconductivity. Superconductivity occurs in a range of doping levels that is bounded by van Hove singularities which stimulates the debate of the origin and nature of superconductivity in this material. In this work, we discuss the role of spin-fluctuations arising from atomic-scale correlations in MATTG for the superconducting state. We show that in a phase diagram as function of doping ($ν$) and temperature, nematic superconducting regions are surrounded by ferromagnetic states and that a superconducting dome with $T_c \approx 2\,\mathrm{K}$ appears between the integer fillings $ν=-2$ and $ν= -3$. Applying a perpendicular electric field enhances superconductivity on the electron-doped side which we relate to changes in the spin-fluctuation spectrum. We show that the nematic unconventional superconductivity leads to pronounced signatures in the local density of states detectable by scanning tunneling spectroscopy measurements.
description: 14 pages, 3 figures, supplementary information
The Intrinsic Origin of Spin Echoes in Dipolar Solids Generated by Strong Pi Pulses
Creators: name: Li, Dale
name: Dong, Yanqun
name: Ramos, R. G.
name: Murray, J. D.
name: MacLean, K.
name: Dementyev, A. E.
name: Barrett, S. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In spectroscopy, it is conventional to treat pulses much stronger than the linewidth as delta-functions. In NMR, this assumption leads to the prediction that pi pulses do not refocus the dipolar coupling. However, NMR spin echo measurements in dipolar solids defy these conventional expectations when more than one pi pulse is used. Observed effects include a long tail in the CPMG echo train for short delays between pi pulses, an even-odd asymmetry in the echo amplitudes for long delays, an unusual fingerprint pattern for intermediate delays, and a strong sensitivity to pi-pulse phase. Experiments that set limits on possible extrinsic causes for the phenomena are reported. We find that the action of the system's internal Hamiltonian during any real pulse is sufficient to cause the effects. Exact numerical calculations, combined with average Hamiltonian theory, identify novel terms that are sensitive to parameters such as pulse phase, dipolar coupling, and system size. Visualization of the entire density matrix shows a unique flow of quantum coherence from non-observable to observable channels when applying repeated pi pulses.
description: 24 pages, 27 figures. Revised from helpful referee comments. Added new Table IV, new paragraphs on pages 3 and 19
Coupled-mode equations and gap solitons in a two-dimensional nonlinear elliptic problem with a separable periodic potential
Creators: name: Dohnal, Tomas
name: Pelinovsky, Dmitry
name: Schneider, Guido
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We address a two-dimensional nonlinear elliptic problem with a finite-amplitude periodic potential. For a class of separable symmetric potentials, we study the bifurcation of the first band gap in the spectrum of the linear Schrödinger operator and the relevant coupled-mode equations to describe this bifurcation. The coupled-mode equations are derived by the rigorous analysis based on the Fourier--Bloch decomposition and the Implicit Function Theorem in the space of bounded continuous functions vanishing at infinity. Persistence of reversible localized solutions, called gap solitons, beyond the coupled-mode equations is proved under a non-degeneracy assumption on the kernel of the linearization operator. Various branches of reversible localized solutions are classified numerically in the framework of the coupled-mode equations and convergence of the approximation error is verified. Error estimates on the time-dependent solutions of the Gross--Pitaevskii equation and the coupled-mode equations are obtained for a finite-time interval.
description: 32 pages, 16 figures
The Tiny (g-2) Muon Wobble from Small-$μ$ Supersymmetry
Creators: name: Baum, Sebastian
name: Carena, Marcela
name: Shah, Nausheen R.
name: Wagner, Carlos E. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new measurement of the muon anomalous magnetic moment has been reported by the Fermilab Muon g-2 collaboration and shows a $4.2σ$ departure from the most precise and reliable calculation of this quantity in the Standard Model. Assuming that this discrepancy is due to new physics, we concentrate on a simple supersymmetric model that also provides a dark matter explanation in a previously unexplored region of supersymmetric parameter space. Such interesting region can realize a Bino-like dark matter candidate compatible with all current direct detection constraints for small to moderate values of the Higgsino mass parameter $|μ|$. This in turn would imply the existence of light additional Higgs bosons and Higgsino particles within reach of the high-luminosity LHC and future colliders. We provide benchmark scenarios that will be tested in the next generation of direct dark matter experiments and at the LHC.
description: 47 (preprint) pages, 2 figures, and 1 beautiful table. v2 matches the published version except that it contains an extended section 2 with a longer discussion of the possible solutions to the muon g-2 puzzle
Exploring the Partonic Structure of Hadrons through the Drell-Yan Process
Creators: name: Reimer, Paul E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Drell-Yan process is a standard tool for probing the partonic structure of hadrons. Since the process proceeds through a quark-antiquark annihilation, Drell-Yan scattering possesses a unique ability to selectively probe sea distributions. This review examines the application of Drell-Yan scattering to elucidating the flavor asymmetry of the nucleon's sea and nuclear modifications to the sea quark distributions in unpolarized scattering. Polarized beams and targets add an exciting new dimension to Drell-Yan scattering. In particular, the two initial-state hadrons give Drell-Yan sensitivity to chirally-odd transversity distributions.
description: 23 pages, 9 figures, to appear in J. Phys. G, resubmission corrects typographical errors
Disordering Transitions and Peak Effect in Polydisperse Particle Systems
Creators: name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show numerically that in a binary system of Yukawa particles, a dispersity driven disordering transition occurs. In the presence of quenched disorder this disordering transition coincides with a marked increase in the depinning threshold, known as a peak effect. We find that the addition of poorly pinned particles can increase the overall pinning in the sample by increasing the amount of topological disorder present. If the quenched disorder is strong enough to create a significant amount of topological disorder in the monodisperse system, addition of a poorly pinned species generates further disorder but does not produce a peak in the depinning force. Our results indicate that for binary mixtures, optimal pinning occurs for topological defect fraction densities of 0.2 to 0.25. For defect densities below this range, the system retains orientational order. We determine the effect of the pinning density, strength, and radius on the depinning peak and find that the peak effect is more pronounced in weakly pinning systems.
description: 8 pages, 8 postscript figures. Version to appear in PRE
CAGAN: Text-To-Image Generation with Combined Attention GANs
Creators: name: Schulze, Henning
name: Yaman, Dogucan
name: Waibel, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Generating images according to natural language descriptions is a challenging task. Prior research has mainly focused to enhance the quality of generation by investigating the use of spatial attention and/or textual attention thereby neglecting the relationship between channels. In this work, we propose the Combined Attention Generative Adversarial Network (CAGAN) to generate photo-realistic images according to textual descriptions. The proposed CAGAN utilises two attention models: word attention to draw different sub-regions conditioned on related words; and squeeze-and-excitation attention to capture non-linear interaction among channels. With spectral normalisation to stabilise training, our proposed CAGAN improves the state of the art on the IS and FID on the CUB dataset and the FID on the more challenging COCO dataset. Furthermore, we demonstrate that judging a model by a single evaluation metric can be misleading by developing an additional model adding local self-attention which scores a higher IS, outperforming the state of the art on the CUB dataset, but generates unrealistic images through feature repetition.
Absence of a structural glass phase in a monoatomic model liquid predicted to undergo an ideal glass transition
Creators: name: Gils, Charlotte
name: Katzgraber, Helmut G.
name: Troyer, Matthias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study numerically a monodisperse model of interacting classical particles predicted to exhibit a static liquid-glass transition. Using a dynamical Monte Carlo method we show that the model does not freeze into a glassy phase at low temperatures. Instead, depending on the choice of the hard-core radius for the particles the system either collapses trivially or a polycrystalline hexagonal structure emerges.
description: 4 pages, 4 figures, minor changes in introduction and conclusions, additional references
Calculating black hole shadows: Review of analytical studies
Creators: name: Perlick, Volker
name: Tsupko, Oleg Yu.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article, we provide a review of the current state of the research of the black hole shadow, focusing on analytical (as opposed to numerical and observational) studies. We start with particular attention to the definition of the shadow and its relation to the often used concepts of escape cone, critical impact parameter and particle cross-section. For methodological purposes, we present the derivation of the angular size of the shadow for an arbitrary spherically symmetric and static space-time, which allows one to calculate the shadow for an observer at arbitrary distance from the center. Then we discuss the calculation of the shadow of a Kerr black hole, for an observer anywhere outside of the black hole. For observers at large distances we present and compare two methods used in the literature. Special attention is given to calculating the shadow in space-times which are not asymptotically flat. Shadows of wormholes and other black-hole impostors are reviewed. Then we discuss the calculation of the black hole shadow in an expanding universe as seen by a comoving observer. The influence of a plasma on the shadow of a black hole is also considered.
description: 42 pages