cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Longitudinal and Transverse NMR in Superfluid 3He in Anisotropic Aerogel
Creators: name: Dmitriev, V. V.
name: Krasnikhin, D. A.
name: Mulders, N.
name: Zavjalov, V. V.
name: Zmeev, D. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It was found that NMR properties of both superfluid phases of $^3$He in anisotropic aerogel can be described in terms of the bulk superfluid order parameters with the orbital order parameter vector fixed by anisotropy of the aerogel sample. It was also shown that by a proper squeezing it is possible to get the aerogel sample with isotropic NMR properties.
description: 6 pages, 5 figures. Submitted to "Pis'ma v ZhETF" (JETP Lett.)
Anisotropic neutrinos and gravitational waves from black hole neutrino-dominated accretion flows in fallback core-collapse supernovae
Creators: name: Wei, Yun-Feng
name: Liu, Tong
name: Xue, Li
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fallback in core-collapse supernovae (CCSNe) plays an important role in determining the properties of the central compact remnants, which might produce a black hole (BH) hyperaccretion system in the centre of a massive CCSN. When the accretion rate is extremely high and neutrino cooling is dominant, the hyperaccretion should be in the phase of the neutrino-dominated accretion flows (NDAFs), and thus a large number of anisotropic MeV neutrinos will be launched from the disc along with the strong gravitational waves (GWs). In this paper, we perform a series of one-dimensional CCSN simulations with the initial explosion energy in the range of $2-8$ B (1 B = $10^{51}$ erg) to investigate the fallback processes. By considering the evolution of the central BH mass and spin in the fallback accretion, we present the effects of the initial explosion energies, masses and metallicities of the massive progenitor stars on the spectra of anisotropic MeV neutrinos and the waveform of GWs from NDAFs. These neutrino or GW signals might be detected by operational or future detectors, and the multimessenger joint detections could constrain the properties of CCSNe and progenitor stars.
description: 13 pages, 8 figures (including appendix), accepted for publication in MNRAS
ФИЗИЧЕСКОЕ ВОСПИТАНИЕ И РАЗВИТИЕ НА УРОКАХ ФИЗИЧЕСКОЙ КУЛЬТУРЫ В НАЧАЛЬНОЙ ШКОЛЕ
Creators: name: Джамшид Исаков
name: Шукурулло Мардонов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: спорт
школа
урок
воспитания
физическая культура

description: В статье речь идет о формировании физической культуры младших школьников, которые обеспечивают высокого уровня здоровья детей, развитие навыков здорового образа жизни, воспитание физической культуры личности
НАВОИЙ ИБРАТИ
Creators: name: Умид Негматович Ходжамқулов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: навоийшунослик тадрижи
“Хамса”
Фоний

description: Ушбу мақолада буюк шоир, сўз мулкининг султони Алишер Навоий шахсиятидаги ибратли жиҳатлар қайд этилган. Унда шоир ижодининг ўрганилиши, бугунги авлод учун ибрат бўладиган инсоний фазилатлари, унинг бутун дунёда салоҳиятига яраша шуҳратини таъминлаш бўйича адабиётшунослигимиз олдидаги долзарб вазифалар тадқиқ этилган.
Additional file 1 of Perceived study-induced influence on the control group in a randomized controlled trial evaluating a complex intervention to promote psychosocial well-being after stroke: a process evaluation
Creators: name: Mangset, Margrete
name: Kitzmüller, Gabriele
name: Evju, Anne S.
name: Angel, Sanne
name: Aadal, Lena
name: Martinsen, Randi
name: Bronken, Berit Arnesveen
name: Kvigne, Kari J.
name: Bragstad, Line K.
name: Hjelle, Ellen Gabrielsen
name: Sveen, Unni
name: Kirkevold, Marit
Publisher: name: figshare
Year: 2021
Subjects: subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Measurements.
The Magnetic Field Across the Molecular Warped Disk of Centaurus A
Creators: name: Lopez-Rodriguez, Enrique
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Magnetic fields are amplified as a consequence of galaxy formation and turbulence-driven dynamos. Galaxy mergers can potentially amplify the magnetic fields from their progenitors, making the magnetic fields dynamically important. However, the effect of mergers on magnetic fields is still poorly understood. We use thermal polarized emission observations to trace the magnetic fields in the molecular disk of the nearest radio active galaxy, Centaurus A, which is thought to be the remnant of a merger. Here, we detect that the magnetic field orientations in the plane of the sky are tightly following the $\sim3.0$ kpc-scale molecular warped disk. Our simple regular large-scale axisymmetric spiral magnetic field model can explain, to some extent, the averaged magnetic field orientations across the disk projected on the sky. Our observations also suggest the presence of small-scale turbulent fields, whose relative strength increases with velocity dispersion and column density. These results have strong implications for understanding the generation and role of magnetic fields in the formation of galaxies across cosmic time.
description: 54 pages, 11 figures, 5 tables. Accepted for publication in Nature Astronomy
Stachys iberica M. Bieb., Fl. Taur.
Creators: name: Akçiçek, Ekrem
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Lamiaceae
Stachys
Stachys iberica

description: 9. Stachys iberica M.Bieb., Fl. Taur. -Caucas. 2: 51 (1808)
Description:―Suffrutescent perennial herbs without basal rosettes of leaves. Flowering stems 15‒65(‒80) cm, numerous, erect or ascending, simple or branched, densely or sparsely adpressed-pilose to glabrescent. Cauline leaves oblanceolate or lanceolate to narrowly linear-oblong, 0.8‒6 × 0.1‒1.2 cm, crenate to serrate or subentire to entire at margin, attenuate at base, sessile, acute to subobtuse at apex, densely or sparsely adpressed pilose to glabrescent. Floral leaves lanceolate, gradually becoming ovate-lanceolate above, 4‒25 mm, longer than verticillasters, uppermost as long as or shorter than verticillasters, subentire to entire at margin, acute at apex, sessile. Verticillasters 3‒10(‒15), remote below (1.5‒5 cm distant), the uppermost approximate, (2‒)4‒8(‒10)-flowered. Bracteoles few, small, setaceous, 0.5‒ 3 mm. Pedicels short, 0.5‒1.5 mm. Calyx subbilabiate, subcampanulate to tubular, 5‒10 mm, sparsely or densely adpressed pilose with few sessile glands, mouth scarsely hairy (between calyx teeth); teeth subequal, triangular-lanceolate, erect to recurved in fruit, as long as to half the length of tube, 1.8‒3.5 mm, mucronate at tip (mucro 0.3‒1.5 mm). Corolla purplish-pink or creamy-yellow to white with pink markings, 8‒16 mm, tube subexserted, annulate, limb bilabiate, adpressed pilose outside, upper lip 3‒6 mm, slightly shorter than the lower, emarginate, lower lip 3-lobed, middle lobe largest and suborbicular, 4‒8 mm. Stamens 4, slightly exserted from corolla tube (less than half-way along upper corolla lip). Nutlets obovoid, faintly trigonous, slightly winged near base, 1.6‒2.3 × 1.3‒1.8 mm, minutely reticulate, blackish-brown.
description: Published as part of Akçiçek, Ekrem, 2020, Taxonomic revision of Stachys sect. Olisia (Lamiaceae: Lamioideae) in Turkey, pp. 109-148 in Phytotaxa 449 (2) on page 136, DOI: 10.11646/phytotaxa.449.2.2, http://zenodo.org/record/13877521
Additional file 7 of Power calculator for detecting allelic imbalance using hierarchical Bayesian model
Creators: name: Sherbina, Katrina
name: León-Novelo, Luis G.
name: Nuzhdin, Sergey V.
name: McIntyre, Lauren M.
name: Marroni, Fabio
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 7. Variation of power as a function of the extent of deviation from allelic balance.
Understanding grain boundary electrical resistivity in Cu: the effect of boundary structure
Creators: name: Bishara, Hanna
name: Lee, Subin
name: Brink, Tobias
name: Ghidelli, Matteo
name: Dehm, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Grain boundaries (GBs) in metals usually increase electrical resistivity due to their distinct atomic arrangement compared to the grain interior. While the GB structure has a crucial influence on the electrical properties, its relationship with resistivity is poorly understood. Here, we perform a systematic study on the resistivity and structure relationship in Cu tilt GBs, employing high resolution in-situ electrical measurements coupled with atomic structure analysis of the GBs. Excess volume and energies of selected GBs are calculated using molecular dynamics simulations. We find a consistent relation between the coincidence site lattice (CSL) type of the GB and its resistivity. The most resistive GBs are high range of low-angle GBs (misorientation 14 to 18 degrees) with twice the resistivity of high angle tilt GBs, due to the high dislocation density and corresponding strain fields. Regarding the atomistic structure, GB resistivity approximately correlates with the GB excess volume. Moreover, we show that GB curvature increases resistivity by about 80%, while phase variations and defects within the same CSL type do not considerably change it.
description: 20 pages, 7 Figures, 1 Table, Supplementary material
ГИМНАСТИКАЧИЛАРДА КУЧ СИФАТЛАРИНИ РИВОЖЛАНТИРИШНИНГ ЯНГИЧА УСУЛЛАРИ
Creators: name: Фахриддин Раимович Эшпулатов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Гимнастика
машқ методлари
жисмоний тайёргарлик
машғулот.

description: Гимнастикачилар бажариши керак бўладиган муҳим талаблар, рақобат ёшини ёшартириш, машғулот юкламаларининг ҳажми ва жадаллигини оширишни талаб этади. Бу эса ҳар доим ҳам гимнастика талаблари бўйича белгиланган педагогик вазифаларнинг бутун ҳажмини ҳал қилишга имкон бермайди. Шу билан бирга, юқори интенсив машқлардан фойдаланиш ёш спортчиларнинг жисмоний тайёргарлиги жараёнида алоҳида эътибор талаб қилади
ЎЗБЕК МИЛЛИЙ ДЕТЕКТИВ АДАБИЁТИ МУАММОЛАРИ
Creators: name: Туроб Тўйчиевич Ирисбоев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: детектив адабиёт
детектив жанр
ўзбек миллий детектив адабиёти
миллий детектив муаммолари

description: Мазкур мақолада XIX аср ўрталаридан эътиборан шаклланиб, жаҳон адабиёти равнақига маълум маънода ижобий таъсир этиб келаётган детектив жанрнинг ўзига хос жиҳатлари ҳақида сўз юритилади. Унда детектив адабиётнинг пайдо бўлиш омиллари, тараққиёт йўллари ва сўз санъати илмидаги эътиборли жиҳатлари борасида фикр-мулоҳазалар билдирилган
Dirac Quantum Wells at Domain Walls in Antiferromagnetic Topological Insulators
Creators: name: Devlin, N. B.
name: Ferrus, T.
name: Barnes, C. H. W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the emergence of spin-polarised flat-bands at head-to-head domain walls in a recently predicted class of antiferromagnetic topological insulators hosting planar magnetisation. We show, in the framework of quantum well physics, that by tuning the width of a domain wall one can control the functional form of the bound states appearing across it. Furthermore, we demonstrate the effect that the parity of the number of layers in a multilayer sample has on the electronic dispersion. In particular, the alignment of the magnetisation vectors on the terminating surfaces of odd layer samples affords particle-hole symmetry leading to the presence of linearly dispersing topologically non-trivial states around $E = 0$. By contrast, the lack of particle-hole symmetry in even layer samples results in a gapped system, with spin-polarised flat-bands appearing either side of a band gap, with characteristic energy well within terahertz energy scales. In addition to being a versatile platform for the development of spintronic devices, when many-body interactions are accounted for we predict that these flat-bands will host strong correlations capable of driving the system into novel topological phases.
БИОЛОГИЧЕСКИЕ И СОЦИАЛЬНЫЕ ФАКТОРЫ ФИЗИЧЕСКОГО РАЗВИТИЯ МЛАДШИХ ШКОЛЬНИКОВ
Creators: name: Джамшид Исаков
name: Шукурулло Мардонов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: физическое воспитание
наследственность
трудовая деятельность
закон возрастной ступенчатости
морфофункциональные показатели
масса тела
длина тела
окружность грудной клетки
дети и подростки

description: В статье речь идет о влиянии биологических и социальнқх факторов на физическое развитие младших школьников в процессе обучения предмета «Физическая культура».
Quantum groups and quantization of Weyl group symmetries of Painlevé systems
Creators: name: Kuroki, Gen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 81R50, 17B37, 16W35

description: We shall construct the quantized q-analogues of the birational Weyl group actions arising from nilpotent Poisson algebras, which are conceptual generalizations, proposed by Noumi and Yamada, of the Bäcklund transformations for Painlevé equations. Consider a quotient Ore domain of the lower nilpotent part of a quantized universal enveloping algebra of arbitrary symmetrizable Kac-Moody type. Then non-integral powers of the image of the Chevalley generators generate the quantized q-analogue of the birational Weyl group action. Using the same method, we shall reconstruct the quantized Bäcklund transformations of q-Painlevé equations constructed by Hasegawa. We shall also prove that any subquotient integral domain of a quantized universal enveloping algebra of finite or affine type is an Ore domain.
description: 30 pages, LaTeX; v2: minor corrections; v3: minor corrections; v4: minor corrections (\otimes problem fixed)
ЭТАПЫ СТАНОВЛЕНИЯ И УРОВНИ РАЗВИТИЯ ЛИНГВОКУЛЬТУРОЛОГИИ КАК НАУКИ
Creators: name: Барно Бадалова
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: культура
лингвистика
межкультурная коммуникация
речь
язык
лингвокультурология
лингвокультура

description: Статья посвящена современному направлению языкознания. Она основана в области изучения лингвокультурологии
Additional file 6 of Power calculator for detecting allelic imbalance using hierarchical Bayesian model
Creators: name: Sherbina, Katrina
name: León-Novelo, Luis G.
name: Nuzhdin, Sergey V.
name: McIntyre, Lauren M.
name: Marroni, Fabio
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 6. Variation of power as a function of number of allele specific reads per biorep.
ОСОБЕННОСТИ ИЗМЕНЕНИЙ ПАРАМЕТРОВ ВНУТРИСЕРДЕЧНОЙ ГЕМОДИНАМИКИ У БОЛЬНЫХ С ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТЬЮ ПОСЛЕ РЕВАСКУЛЯРИЗАЦИИ МИОКАРДА
Creators: name: Т. А. Мардиев
name: А. А. Мирзалиева
name: Ш. К. Муминов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: хроническая сердечная недостаточность
реперфузия миокарда
систолическая и диастолическая функция левого желудочка

description: В данной статье рассматривается изучение параметров внутрисердечной гемодинамики у больных с хронической сердечной недостаточностью после реваскуляризации миокарда. Обследовано 60 пациентов с хронической сердечной недостаточностью (ХСН) ФК II-IV. Эхокардиографическое исследование выполняли трансторакальным методом, в соответствии рекомендациями Американской ассоциации эхокардиографии (ASE).
A gauge invariant chiral unitary framework for kaon photo- and electroproduction on the proton
Creators: name: Borasoy, B.
name: Bruns, P. C.
name: Meißner, Ulf-G.
name: Nißler, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a gauge invariant approach to photoproduction of mesons on nucleons within a chiral unitary framework. The interaction kernel for meson-baryon scattering is derived from the chiral effective Lagrangian and iterated in a Bethe-Salpeter equation. Within the leading order approximation to the interaction kernel, data on kaon photoproduction from SAPHIR, CLAS and CBELSA/TAPS are analyzed in the threshold region. The importance of gauge invariance and the precision of various approximations in the interaction kernel utilized in earlier works are discussed.
description: 23 pages, 13 figs, EPJ A style
Giaime Alonge, Alfio Bastiancich, Chiara Magri (a cura di), Dossier: Cinema d'animazione. Volume monografico de La Valle dell'Eden. 16 (anno VIII). gennaio-giugno 2006. Roma. Carocci. pp.176. ISBN -88-430-3775-7
Creators: name: Teti, Marco
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, I 2 (2006)
Structural and spectroscopic investigation of the charge-ordered, short-range ordered, and disordered phases of the Co$_3$O$_2$BO$_3$ ludwigite
Creators: name: Galdino, C. W.
name: Freitas, D. C.
name: Medrano, C. P. C.
name: Sanchez, D. R.
name: Tartaglia, R.
name: Rabello, L. P.
name: Mendonça, A. A.
name: Ghivelder, L.
name: Continentino, M. A.
name: Zapata, M. J. M.
name: Pinheiro, C. B.
name: Azevedo, G. M.
name: Rodríguez-Velamazán, J. A.
name: Garbarino, G.
name: Núñez-Regueiro, M.
name: Granado, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work, we investigate the representative case of the homometallic Co ludwigite Co$^{2+}_2$Co$^{3+}$O$_2$BO$_3$ ($Pbam$ space group) with four distinct Co crystallographic sites [$M1$-$M4$] surrounded by oxygen octahedra. The mixed-valent character of the Co ions up to at least $T=873$ K is verified through x-ray absorption near-edge structure (XANES) experiments. Single crystal x-ray diffraction (XRD) and neutron powder diffraction (NPD) confirm that the Co ions at the $M4$ site are much smaller than the others at low temperatures, consistent with a Co$^{3+}$ oxidation state at $M4$ and Co$^{2+}$ at the remaining sites. The size difference between the Co ions in the $M4$ and $M2$ sites is continuously reduced upon warming above $\approx 370$ K, indicating a gradual charge redistribution within the $M4$-$M2$-$M4$ (424) ladder in the average structure. An increasing structural disorder, is noted above $\approx 370$ K, The local Co-O distance distribution, revealed by Co $K$-edge Extended X-Ray Absorption Fine Structure (EXAFS) data and analyzed with an evolutionary algorithm method, is similar to that inferred from the XRD crystal structure below $\approx 370$ K. At higher temperatures, the local Co-O distance distribution remains similar to that found at low temperatures, at variance with the average crystal structure obtained with XRD. We conclude that the oxidation states Co$^{2+}$ and Co$^{3+}$ are instantaneously well defined in a local atomic level at all temperatures, however the thermal energy promotes local defects in the charge-ordered configuration of the 424 ladders upon warming. These defects coalesce into a phase-segregated state within a narrow temperature interval ($475< T < 495$ K). Finally, a transition at $\approx 500$ K revealed by differential scanning calorimetry (DSC) in the iron ludwigite Fe$_3$O$_2$BO$_3$ is discussed.
description: 22 pages, 19 figures
Entanglement renormalization of thermofield double states
Creators: name: Lin, Cheng-Ju
name: Li, Zhi
name: Hsieh, Timothy H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement renormalization is a method for coarse-graining a quantum state in real space, with the multi-scale entanglement renormalization ansatz (MERA) as a notable example. We obtain an entanglement renormalization scheme for finite-temperature (Gibbs) states by applying MERA to their canonical purification, the thermofield double state. As an example, we find an analytically exact renormalization circuit for finite temperature two-dimensional toric code which maps it to a coarse-grained system with a renormalized higher temperature, thus explicitly demonstrating its lack of topological order. Furthermore, we apply this scheme to one-dimensional free boson models at a finite temperature and find that the thermofield double corresponding to the critical thermal state is described by a Lifshitz theory. We numerically demonstrate the relevance and irrelevance of various perturbations under real space renormalization.
description: 6 pages of main text + 10 pages of appendices
Microstructure, Mechanical and Thermal Properties of Hot-pressed TiB2 Ceramics with B4C and Phenolic Resin-Derived Carbon Sintering Additives
Creators: name: Heo, Minsu
name: Oh, Youngjun
name: Jeong, Chang Hui
name: Kim, Young-Wook
name: Kim, Hyun-Sik
name: Jung, Wook Ki
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Marine Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: TiB2 is a ceramic material known not only for its excellent thermal and mechanical properties but also for its machinability via electrical discharge machining. However, due to its low sinterability, the high sintering temperature required to achieve a fully densified microstructure restricts the wide application of TiB2. Here, we used B4C and phenolic resin-derived C (P.R.-C) as sintering additive to improve sinterability by promoting grain refinement and providing pathways for the release of entrapped gas, thereby achieving a dense microstructure. As a result, the finer microstructure enhanced flexural strength and hardness while reducing thermal conductivity. The residual P.R.-C, present after exceeding the required amount of C for carbothermal reduction, improved the sinterability of TiB2 by inhibiting grain growth, resulting in enhanced densification. Consequently, the fine-grained microstructure increased flexural strength and hardness, reaching 567.7 MPa and 24.6 GPa at 2.5 wt% P.R.-C. However, the thermal conductivity decreased due to the presence of residual P.R.-C, dropping to 91.6 W.m−1.K−1 at 3.0 wt% P.R.-C. This highlights the possibility for engineering the microstructure, mechanical and thermal properties of TiB2 by incorporating P.R.-C.
Synthesis-guided Adversarial Scenario Generation for Gray-box Feedback Control Systems with Sensing Imperfections
Creators: name: Yang, Liren
name: Ozay, Necmiye
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we study feedback dynamical systems with memoryless controllers under imperfect information. We develop an algorithm that searches for "adversarial scenarios", which can be thought of as the strategy for the adversary representing the noise and disturbances, that lead to safety violations. The main challenge is to analyze the closed-loop system's vulnerabilities with a potentially complex or even unknown controller in the loop. As opposed to commonly adopted approaches that treat the system under test as a black-box, we propose a synthesis-guided approach, which leverages the knowledge of a plant model at hand. This hence leads to a way to deal with gray-box systems (i.e., with known plant and unknown controller). Our approach reveals the role of the imperfect information in the violation. Examples show that our approach can find non-trivial scenarios that are difficult to expose by random simulations. This approach is further extended to incorporate model mismatch and to falsify vision-in-the-loop systems against finite-time reach-avoid specifications.
description: This article appears as part of the ESWEEK-TECS special issue and was presented in the International Conference on Embedded Software (EMSOFT)
Towards high-rate RPC-based thermal neutron detectors using low-resistivity electrodes
Creators: name: Margato, L. M. S.
name: Morozov, A.
name: Blanco, A.
name: Fonte, P.
name: Lopes, L.
name: Saraiva, J.
name: Zeitelhack, K.
name: Hall-Wilton, R.
name: Höglund, C.
name: Robinson, L.
name: Svensson, P.
name: Naumann, L.
name: Roemer, K.
name: Stach, D.
name: Wilpert, Th.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present experimental results on the counting rate measurements for several single-gap $^{10}$B lined resistive plate chambers ($^{10}$B-RPCs) with anodes made from standard float glass, low resistivity glass and ceramic. The measurements were performed at the V17 monochromatic neutron beamline (3.35 Ȧ) at the Helmholtz-Zentrum Berlin. For the $^{10}$B-RPCs with 0.28 mm thick float glass a maximum counting rate density of about $8\times 10^{3}$ $Hz/cm^{2}$ was obtained. In the case of low resistivity glass and ceramic, the counting rate density did not deviate from linear dependence on the neutron flux up to the maximum flux available at this beamline and exceeded a value of $3\times 10^{4}$ $Hz/cm^{2}$.
Joint Estimation of Robin Coefficient and Domain Boundary for the Poisson Problem
Creators: name: Nicholson, Ruanui
name: Niskanen, Matti
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Computation (stat.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 35R30, 62F15, 65C40, 35Q62, 35Q93, 65N21

description: We consider the problem of simultaneously inferring the heterogeneous coefficient field for a Robin boundary condition on an inaccessible part of the boundary along with the shape of the boundary for the Poisson problem. Such a problem arises in, for example, corrosion detection, and thermal parameter estimation. We carry out both linearised uncertainty quantification, based on a local Gaussian approximation, and full exploration of the joint posterior using Markov chain Monte Carlo (MCMC) sampling. By exploiting a known invariance property of the Poisson problem, we are able to circumvent the need to re-mesh as the shape of the boundary changes. The linearised uncertainty analysis presented here relies on a local linearisation of the parameter-to-observable map, with respect to both the Robin coefficient and the boundary shape, evaluated at the maximum a posteriori (MAP) estimates. Computation of the MAP estimate is carried out using the Gauss-Newton method. On the other hand, to explore the full joint posterior we use the Metropolis-adjusted Langevin algorithm (MALA), which requires the gradient of the log-posterior. We thus derive both the Fréchet derivative of the solution to the Poisson problem with respect to the Robin coefficient and the boundary shape, and the gradient of the log-posterior, which is efficiently computed using the so-called adjoint approach. The performance of the approach is demonstrated via several numerical experiments with simulated data.
Probing the truncation of galaxy dark matter halos in high density environments from hydrodynamical N-body simulations
Creators: name: Limousin, Marceau
name: Sommer-Larsen, Jesper
name: Natarajan, Priyamvada
name: Milvang-Jensen, Bo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze high resolution, N-body hydrodynamical simulations of fiducial galaxy clusters to probe tidal stripping of the dark matter subhalos. These simulations include a prescription for star formation allowing us to track the fate of the stellar component as well. We investigate the effect of tidal stripping on cluster galaxies hosted in these dark matter subhalos as a function of cluster-centric radius. To quantify the extent of the dark matter halos of cluster galaxies, we introduce the half mass radius r_half as a diagnostic, and study its evolution with projected cluster-centric distance R as a function of redshift. We find a well defined trend for (r_half,R): the closer the galaxies are to the center of the cluster, the smaller the half mass radius. Interestingly, this trend is inferred in all redshift frames examined in this work ranging from z=0 to z=0.7. At z=0, galaxy halos in the central regions of clusters are found to be highly truncated, with the most compact half mass radius of 10 kpc. We also find that r_half depends on luminosity and we present scaling relations of r_half with galaxy luminosity. The corresponding total mass of the cluster galaxies is also found to increase with projected cluster-centric distance and luminosity, but with more scatter than the (r_half,R) trend. Comparing the distribution of stellar mass to total mass for cluster galaxies, we find that the dark matter component is preferentially stripped, whereas the stellar component remains protected by the halo and is much less affected by tidal forces. We compare these results with galaxy-galaxy lensing probes of r_half and find qualitative agreement. (Abridged)
description: Accepted for publication in ApJ
Additional file 5 of Power calculator for detecting allelic imbalance using hierarchical Bayesian model
Creators: name: Sherbina, Katrina
name: León-Novelo, Luis G.
name: Nuzhdin, Sergey V.
name: McIntyre, Lauren M.
name: Marroni, Fabio
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 5. Variation of power as a function of number of simulations.
Constraint-induced breaking and restoration of ergodicity in spin-1 PXP models
Creators: name: Mukherjee, Bhaskar
name: Cai, Zi
name: Liu, W. Vincent
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Eigenstate Thermalization Hypothesis(ETH) has played a pivotal role in understanding ergodicity and its breaking in isolated quantum many-body systems. Recent experiment on 51-atom Rydberg quantum simulator and subsequent theoretical analysis have shown that hardcore kinetic constraint can lead to weak ergodicity breaking. In this work, we demonstrate, using 1d spin-1 PXP chains, that miscellaneous type of ergodicity can be realized by adjusting the hardcore constraints between different components of nearest neighbor spins. This includes ETH violation due to emergent shattering of Hilbert space into exponentially many subsectors of various sizes, a novel form of non-integrability with an extensive number of local conserved quantities and strong ergodicity. We analyze these different forms of ergodicity and study their impact on the non-equilibrium dynamics of a Z2 initial state. We use forward scattering approximation (FSA) to understand the amount of Z2-oscillation present in these models. Our work shows that not only ergodicity breaking but an appropriate choice of constraints can lead to restoration of ergodicity as well.
Impact of resolution on the atmospheric circulation response to Arctic sea ice decline
Creators: name: Chripko, Svenya
name: Msadek, Rym
name: Sanchez-Gomez, Emilia
name: Terray, Laurent
name: Bessières, Laurent
name: Moine, Marie-Pierre
Publisher: name: Zenodo
Year: 2020

description: Oral presentation given at the PRIMAVERA General Assembly 2020.
Analysis of Screening Effects on Terahertz Photoconductive Devices using a Fully-Coupled Multiphysics Approach
Creators: name: Chen, Liang
name: Bagci, Hakan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The terahertz current generated by a photoconductive device (PCD) saturates as the power of the input optical pump is increased. This behavior is induced by various screening effects that stem from the interactions between electromagnetic (EM) fields and semiconductor carriers. In this work, these screening effects are numerically analyzed for the first time using a fully-coupled multiphysics approach. Unlike the previously developed simulation frameworks, this approach rigorously models the nonlinear coupling between the EM fields and the carriers and therefore is capable of accounting for the screening effects. It is demonstrated that the results obtained using this multiphysics approach and actual experiments are in excellent agreement. The optical- and radiation-field screening effects are identified in the simulation results and the optical-field screening is found to play a more dominant role in the saturation of the PCD output under high optical pump power levels.
CSW rules for massive matter legs and glue loops
Creators: name: Boels, Rutger
name: Schwinn, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cachazo-Svrcek-Witten-type Feynman rules for massive matter scalar legs and pure glue loops are presented, obtained by deriving them directly from the space-time action. We comment on the derivation and some sample applications, in particular to calculating one loop effects in pure Yang-Mills theory. Furthermore, we derive CSW rules for effective Higgs-gluon couplings studied in the literature. In addition, it is shown how twistor techniques for deriving canonical field transformations explored for massless scalars extend to massless fermions.
description: 6 pages, to appear in the proceedings of the international conference on Loops and Legs in Quantum Field Theory, Sondershausen, 20-25 April 2008
GPDs of hadrons and elastic pion-nucleon scattering
Creators: name: Selyugin, O. V.
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: The pion structure is represented by Generelazed parton distribution functions (GPDs). The momentum transfer dependence of GPDs of the pion was obtained on the basis of the form of GPDs of the nucleon in the framework of the high energy generalized structure (HEGS) model. To this end, different forms of PDFs of the pion of various Collaborations were examined with taking into account the available experimental data on the pion form factors. As a result, the electromagnetic and gravitomagnetic form factors of the pion were calculated. They were used in the framework of the HEGS model with the electromagnetic and gravitomagnetic form factors of the proton for describing pion-nucleon elastic scattering in a wide energy and momentum transfer region with a minimum of fitting parameters. The properties of the obtained scattering amplitude were analyzed.
description: 13 pages, 20 figures, typos corrected, minor clarification added
Wigner crystal vs. Friedel oscillations in the 1D Hubbard model
Creators: name: Soeffing, Stefan A.
name: Bortz, Michael
name: Schneider, Imke
name: Struck, Alexander
name: Fleischhauer, Michael
name: Eggert, Sebastian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We analyze the fermion density of the one-dimensional Hubbard model using bosonization and numerical DMRG calculations. For finite systems we find a relatively sharp crossover even for moderate short range interactions into a region with $4k_F$ density waves as a function of density. The results show that the unstable fixed point of a spin-incoherent state can dominate the physical behavior in a large region of parameter space in finite systems. The crossover may be observable in ultra cold fermionic gases in optical lattices and in finite quantum wires.
description: 6 pages, 6 figures. Published version. The most recent file can be found at http://www.physik.uni-kl.de/eggert/papers/index.html
Additional file 1 of Does pre-notification increase questionnaire response rates: a randomised controlled trial nested within a systematic review
Creators: name: Woolf, Benjamin
name: Edwards, Phil
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table 1 Description of emails which deviated from the protocol.
Additional file 2 of A multicenter randomized placebo-controlled trial of intravenous thyroxine for heart-eligible brain-dead organ donors
Creators: name: Dhar, Rajat
name: Klinkenberg, Dean
name: Marklin, Gary
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 2. Study Sites.
Updates on the INFN Open Access Repository
Creators: name: Rotondo, Riccardo
name: Fargetta, Marco
name: Barbera, Roberto
name: Bianco, Stefano
name: Maggi, Marcello
name: Menasce, Dario
name: Patrizii, Laura
Publisher: name: INFN Open Access Repository
Year: 2019
Subjects: oar
plan s
digital archive
open access

description: Research organisations are moving to new models of sharing publications and data among communities in order to overcome limitations of current publishing systems: free and open access, data and publication associations, etc.
 INFN and other organisations, both public and private, have signed a global initiative launched by Science Europe, named Plan S, aimed at moving the state funded research works in open repositories or journal available to all. In this context, we have updated the pilot of the INFN Open Access Repository, that is operational since 2014, to a version that is compliant with Plan S requirements. Starting from Zenodo code, that powers the EC flagship repository with the same name, developed by CERN in the context of the OpenAIRE series of projects, we customised the implementation to add
 features useful for INFN. These include the integration with INFN-AAI for the authentication, configurable look and feel, data migration from previous repository and some fixes. Additionally, we have developed yaml files describing all micro services behind Zenodo for an automated deployment on a Kubernetes-based
 infrastructure. The repository is open for testing by all INFN staff and associated researchers and people from other organisations are also investigating it, already. We are currently preparing a Conceptual Design Report for the updater repository for evaluation by the INFN management and we will report
 on it.
Heat transfer and convection in liquid metal
Creators: name: Harrison, Christine Elizabeth
Publisher: name: University of British Columbia
Year: 2010

description: This investigation was undertaken to examine the heat flow characteristics of a liquid metal system in which fluid flow is present due to buoyancy forces. Previous investigations of heat flow in liquids has been confined to transparent materials, which have very different flow characteristics compared to liquid metals. Measurements were made on liquid tin contained in a thin square cavity which had a temperature difference imposed across the cell to produce natural convection. The heat flow across the cell was calculated from the measured temperature difference across the cold end plate and the thermal conductivity of the plate. Using the calculated heat flow and the measured temperature difference across the melt the effective thermal conductivity of the melt was calculated. Two cell sizes were studied. The thermal conductivity of the cold end plate was found to have a significant effect on the heat transfer through the cell. Radioactive tracers were used to observe the flow pattern in the melt and to measure the flow velocity as a function of the temperature difference across the cell. The technique involved insertion of radioactive Sn¹¹³ into the melt, then quenching the sample after a given length of time. The sample was then autoradiographed to determine the path of the tracer after insertion into the melt. The flow was found to be very fast for the smaller of the two cell sizes which exhibited three-dimensional flow characteristics. The larger cell produced laminar, two-dimensional flow. A correlation was observed between the time per cycle and the temperature difference across the large cell. The study also includes a finite-difference model which was developed to provide further insight into the thermal and fluid flow behaviour of the melt. The model examines the effect of nonuniform temperatures along the ends and bottom of the cell on the temperature and velocity fields and is used to compare the response of liquid tin and liquid steel to identical temperature differences. Results from the model indicate that either a temperature drop along the hot and cold ends of the cell or the presence of a linear gradient along the bottom of the cell would decrease the maximum fluid velocity in the cell. The present investigation shows that the enhancement of the thermal conductivity due to the presence of natural convection in the liquid metal can be as high as ten times the stagnant thermal conductivity. However the degree of enhancement is influenced by the thermal resistance at the boundaries.
Winter atmospheric response to summer sea ice loss in the CNRM-CM6 climate model
Creators: name: Chripko, Svenya
name: Msadek, Rym
name: Sanchez-Gomez, Emilia
name: Terray, Laurent
Publisher: name: Zenodo
Year: 2018

description: Oral presentation given at the POLAR2018 conference in Davos, Switzerland, in June 2018.
Quantum oscillations in an optically-illuminated two-dimensional electron system at the LaAlO$_3$/SrTiO$_3$ interface
Creators: name: Leermakers, I.
name: Rubi, K.
name: Yang, M.
name: Kerdi, B.
name: Goiran, M.
name: Escoffier, W.
name: Rana, A. S.
name: Smink, A. E. M.
name: Brinkman, A.
name: Hilgenkamp, H.
name: Maan, J. C.
name: Zeitler, U.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the illumination effect on the magnetotransport properties of a two-dimensional electron system at the LaAlO$_3$/SrTiO$_3$ interface. The illumination significantly reduces the zero-field sheet resistance, eliminates the Kondo effect at low-temperature, and switches the negative magnetoresistance into the positive one. A large increase in the density of high-mobility carriers after illumination leads to quantum oscillations in the magnetoresistance originating from the Landau quantization. The carrier density ($\sim 2 \times 10^{12}$ cm$^{-2}$) and effective mass ($\sim 1.7 ~m_e$) estimated from the oscillations suggest that the high-mobility electrons occupy the d$_{xz/yz}$ subbands of Ti:t$_{2g}$ orbital extending deep within the conducting sheet of SrTiO$_3$. Our results demonstrate that the illumination which induces additional carriers at the interface can pave the way to control the Kondo-like scattering and study the quantum transport in the complex oxide heterostructures.
Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP
Creators: name: ALEPH Collaboration
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Inclusive beauty-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of 698 pb-1 collected by the ALEPH detector with sqrt(s) between 130 and 209 GeV. The b quarks were identified using lifetime information. The cross section is found to be sigma(e+ e- --> e+ e- b \bar{b} X) = (5.4 +/- 0.8 (stat) +/- 0.8 (syst)) pb which is consistent with Next-to-Leading Order QCD.
description: 15 pages, 8 figures. Submitted to JHEP
Additional file 1 of A multicenter randomized placebo-controlled trial of intravenous thyroxine for heart-eligible brain-dead organ donors
Creators: name: Dhar, Rajat
name: Klinkenberg, Dean
name: Marklin, Gary
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Additional file 1. Study Forms.
An investigation of gas/liquid mass transfer in mechanically agitated pressure leaching systems
Creators: name: DeGraaf, Kenneth Brant
Publisher: name: University of British Columbia
Year: 2010

description: Oxygen pressure leaching rates have been accelerated to the point where oxygen consumption rates of 0.75 moles of O₂ per litre of leach solution are obtained within a residence time of the order of 1 hour. At these high oxygen consumption rates the mass transfer of dissolved oxygen at the gas/liquid interface may become rate-determing. The purpose of this study has been to examine gas/liquid mass transfer rates in mechanically agitated pressure leaching systems. Using an O₂-Na₂SO₃ system to measure the oxygen mass transfer rates, the effect of a number of process variables on the mass transfer rates, impellor gas pumping rates, and the volumetric power requirements has been studied. The experimental work was done using both bench-scale (2 litres and 20 litres) and pilot-scale (2100 litres) equipment. It is demonstrated that dimensionless mixing correlations previously applied are not useful for extrapolating or scaling-up a mechanically agitated gas/liquid mass transfer system. It is shown that gas/liquid systems are more appropriately described and scaled-up in terms of the impellor tip velocities and gas pumping characteristics. The existence of a critical impellor velocity, which corresponds to the point when bubbles first form at the impellor is confirmed experimentally and discussed theoretically. The gas/liquid mass transfer rate is found to be directly related to the gas pumping capacity of the impellor. The practical Implications of this principle in the design of agitation for gas/liquid systems are shown experimentally to have great potential for improving gas/liquid mass transfer rates and reducing the power consumption of an agitator.