cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AGN astrophysics from comparing radio and Gaia optical astrometry
Creators: name: Browne, Ian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gaia will open up a huge volume of new parameter space in which to explore the physics of AGN and black hole evolution. We address the question as to how far along the relativistic jets blazar radio, optical and gamma ray emission originated. In some models the optical centroid wander should be detectable as the relative contributions of thermal and non-thermal optical emission change. Black holes powering AGN do not necessarily reside at the centres of their host galaxies; they can be one member of a binary pair or they could have received a kick after binary coalescence. For radio-loud AGN comparison of astrometric radio and and optical positions can reveal such displacements. It is suggested that it would be feasible to do this using Gaia and e-MERLIN for a sample of thousands of elliptical radio galaxies.
description: 5 pages, GREAT-ESF workshop on QSO astrophysics, fundamental physics and astrometric cosmology in the Gaia era. Porto, June 2011
Direct time domain sampling of sub-THz coherent acoustic phonon spectra in SrTiO$_3$ using ultrafast X-ray diffraction
Creators: name: Shayduk, Roman
name: Herzog, Marc
name: Bojahr, André
name: Schick, Daniel
name: Gaal, Peter
name: Leitenberger, Wolfram
name: Navirian, Hengameh
name: Sander, Mathias
name: Goldshteyn, Jevgenij
name: Vrejoiu, Ionela
name: Bargheer, Matias
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We synthesize sub-THz longitudinal quasi-monochromatic acoustic phonons in a SrTiO$_3$ single crystal using a SrRuO$_3$/SrTiO$_3$ superlattice as an optical-acoustic transducer. The generated acoustic phonon spectrum is determined using ultrafast X-ray diffraction. The analysis of the generated phonon spectrum in the time domain reveals a k-vector dependent phonon lifetime. It is observed that even at sub-THz frequencies the phonon lifetime agrees with the 1/$ω^2$ power law known from Akhiezer's model for hyper sound attenuation. The observed shift of the synthesized spectrum to the higher $q$ is discussed in the framework of non-linear effects appearing due to the high amplitude of the synthesized phonons.
New Dirac points and multiple Landau level crossings in biased trilayer graphene
Creators: name: Serbyn, Maksym
name: Abanin, Dmitry A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently a new high-mobility Dirac material, trilayer graphene, was realized experimentally. The band structure of ABA-stacked trilayer graphene consists of a monolayer-like and a bilayer-like pairs of bands. Here we study electronic properties of ABA-stacked trilayer graphene biased by a perpendicular electric field. We find that the combination of the bias and trigonal warping gives rise to a set of new Dirac points: in each valley, seven species of Dirac fermions with small masses of order of a few meV emerge. The positions and masses of the emergent Dirac fermions are tunable by bias, and one group of Dirac fermions becomes massless at a certain bias value. Therefore, in contrast to bilayer graphene, the conductivity at the neutrality point is expected to show non-monotonic behavior, becoming of the order of a few e^2/h when some Dirac masses vanish. Further, we analyze the evolution of Landau level spectrum as a function of bias. Emergence of new Dirac points in the band structure translates into new three-fold-degenerate groups of Landau levels. This leads to an anomalous quantum Hall effect, in which some quantum Hall steps have a height of 3e^2/h. At an intermediate bias, the degeneracies of all Landau levels get lifted, and in this regime all quantum Hall plateaus are spaced by e^2/h. Finally, we show that the pattern of Landau level crossings is very sensitive to certain band structure parameters, and can therefore provide a useful tool for determining their precise values.
description: 11 pages, 6 figures; v2: expanded introduction, new references added, a few typos corrected
Three pseudoscalar meson production in $e^+ e^-$ annihilation
Creators: name: Dai, L. Y.
name: Portoles, J.
name: Shekhovtsova, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study, at leading order in the large number of colours expansion and within the Resonance Chiral Theory framework, the odd-intrinsic-parity $e^+ e^- \rightarrow π^+ π^- (π^0, η)$ cross-sections in the energy regime populated by hadron resonances, namely $3 \, m_π \lsim E \lsim 2 \, \mbox{GeV}$. In addition we implement our results in the Monte Carlo generator PHOKHARA 7.0 and we simulate hadron production through the radiative return method.
description: 39 pages, 5 figures
Quantum discord for two-qubit X states: Analytical formula with very small worst-case error
Creators: name: Huang, Yichen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum discord is a measure of quantum correlation beyond entanglement. Computing quantum discord for simple quantum states is a basic problem. An analytical formula of quantum discord for two-qubit X states is first claimed in [Ali, Rau, and Alber, Phys. Rev. A 81, 042105 (2010)], but later found to be not always correct. I observe numerically that the formula is valid with worst-case absolute error 0.0021. For symmetric two-qubit X states, I give a counterexample to the analytical formula derived in [F. F. Fanchini et al., Phys. Rev. A 81, 052107 (2010)], but observe that the formula is valid with worst-case absolute error 0.0006. The formula has been used in many research papers. The results in all these works are approximately correct, even if they may not be exactly correct.
description: slightly revised; published version
Transdifferenzierung von Nebennierenrindenzellen in Abhängigkeit von ihren physiologischen Stimuli und Sekretionsprodukten
Creators: name: Friedrich, Felix
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 610 Medical sciences Medicine

description: Einen vielversprechenden Ansatz zur Klärung der Frage, wie die Zonieren der Nebennierenrinde zustande kommt, bietet die Hypothese von Peter J. Hornsby und Till Dringenberg. Sie vermuten, dass in der Nebennierenrinde der Gradient eines Morphogens existiert, der die Differenzierung in die drei Zonen reguliert. Ziel der vorliegende Arbeit war es, diese Vermutung durch Zellkulturexperiment zu untersuchen.
Subsolution theorem for the complex Hessian equation
Creators: name: Nguyen, Ngoc Cuong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We prove the subsolution theorem for the complex Hessian equations in a smoothly bounded strongly $m$-pseudoconvex domain, $1 < m < n$, in $\bC^n$.
description: 18 pages. Corrected typos. To appear in Universitatis Iagellonicae Acta Mathematica
Symmetry detection of auxetic behaviour in 2D frameworks
Creators: name: Mitschke, H.
name: Schroeder-Turk, G. E.
name: Mecke, K.
name: Fowler, P. W.
name: Guest, S. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A symmetry-extended Maxwell treatment of the net mobility of periodic bar-and-joint frameworks is used to derive a sufficient condition for auxetic behaviour of a 2D material. The type of auxetic behaviour that can be detected by symmetry has Poisson's ratio -1, with equal expansion/contraction in all directions, and is here termed equiauxetic. A framework may have a symmetry-detectable equiauxetic mechanism if it belongs to a plane group that includes rotational axes of order n = 6, 4, or 3. If the reducible representation for the net mobility contains mechanisms that preserve full rotational symmetry (A modes), these are equiauxetic. In addition, for n = 6, mechanisms that halve rotational symmetry (B modes) are also equiauxetic.
The blackness of the cosmic microwave background spectrum as a probe of the distance-duality relation
Creators: name: Ellis, George F. R.
name: Poltis, Robert
name: Uzan, Jean-Philippe
name: Weltman, Amanda
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A violation of the reciprocity relation, which induces a violation of the distance duality relation, reflects itself in a change in the normalisation of the cosmic microwave spectrum in such a way that its spectrum is grey. We show that existing observational constraints imply that the reciprocity relation cannot be violated by more than 0.01% between decoupling and today. We compare this effect to other sources of violation of the distance duality relations which induce spectral distortion of the cosmic microwave background spectrum.
description: 5 pages, 2 figures, references added, minor typos corrected
Morfologiske spogforandringsprocesser i moderne russisk
Creators: name: Martin, Podolak
Publisher: name: Zenodo
Year: 2015
Subjects: language change, Russian

description: I denne fremstilling vil jeg gøre rede for de sproginterne sprogforandringsprocesser i russisk, som vedrører morfologien, mens det i mange tilfælde er nødvendigt at inddrage faktorer fra de andre sprogplan som fx syntaks eller pragmatik og sprogeksterne faktorer, for tilstrækkeligt at kunne forklare de aktuelle processer. Hovedvægten ligger på følgende tre områder: 1.) processer, som forøger sprogets analytiske træk frem for dets syntetiske til stigende analytiske; 2.) sprogforandring,som har sine grunde i sprogøkonomien og 3.) andre processer på grundlag af analogi.
On the co-orbital motion of two planets in quasi-circular orbits
Creators: name: Robutel, Philippe
name: Pousse, Alexandre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We develop an analytical Hamiltonian formalism adapted to the study of the motion of two planets in co-orbital resonance. The Hamiltonian, averaged over one of the planetary mean longitude, is expanded in power series of eccentricities and inclinations. The model, which is valid in the entire co-orbital region, possesses an integrable approximation modeling the planar and quasi-circular motions. First, focusing on the fixed points of this approximation, we highlight relations linking the eigenvectors of the associated linearized differential system and the existence of certain remarkable orbits like the elliptic Eulerian Lagrangian configurations, the Anti-Lagrange (Giuppone et al., 2010) orbits and some second sort orbits discovered by Poincaré. Then, the variational equation is studied in the vicinity of any quasi-circular periodic solution. The fundamental frequencies of the trajectory are deduced and possible occurrence of low order resonances are discussed. Finally, with the help of the construction of a Birkhoff normal form, we prove that the elliptic Lagrangian equilateral configurations and the Anti-Lagrange orbits bifurcate from the same fixed point L4.
description: 25 pages. Accepted for publication in Celestial Mechanics and Dynamical Astronomy
title: Zehn Mythen rund um Ausbildung und Studium
title: Faktencheck nachschulische Bildung
titleType: Subtitle
Creators: name: Schnelle, Caroline
name: Müller, Ulrich
name: Johanning, Naemi
name: Rischke, Melanie
Publisher: name: Bertelsmann Stiftung
Year: 2023
Subjects: Nachschulische Bildung
Berufsorientierung
Studium
Berufsausbildung

description: „Der Studienboom nimmt den Betrieben die Auszubildenden weg“, „Nach der Schule wird der berufliche Weg ein für alle Mal festgelegt“, „Akademiker:innen haben von der Praxis erstmal keine Ahnung“ - solche und ähnliche Falschaussagen rund um die nachschulische Bildung, also rund um Ausbildung und Studium, haben sich hartnäckig in der öffentlichen Wahrnehmung etabliert. Sie erschweren die berufliche Orientierung junger Menschen und erzeugen eine Konkurrenzbeziehung zwischen der akademischen und beruflichen Bildung. Dabei braucht es dringend gemeinsame Ansätze, um die Zukunftsfähigkeit des nachschulischen Bildungssystems in Deutschland zu sichern.

In einer gemeinsamen Analyse der Bertelsmann Stiftung und des CHE Centrum für Hochschulentwicklung stellen wir den zehn weitverbreitetsten Mythen rund um Ausbildung und Studium Fakten gegenüber. Sie zeigen: In der nachschulischen Bildung herrscht seit einigen Jahren eine erhebliche Dynamik; die Durchlässigkeit zwischen beruflicher und akademischer Bildung ist so groß wie nie zuvor. Bildungsinteressierten eröffnen sich oft Möglichkeiten, von denen sie bislang nichts wussten. Hier muss die Informationslage verbessert werden, damit junge Menschen sich ergebnisoffen orientieren können und zu fundierten Entscheidungen kommen. Zudem besteht Verbesserungsbedarf hinsichtlich des Zusammenspiels der verschiedenen Bildungsbereiche. Es sollte nicht darum gehen, Ausbildung und Studium gegeneinander auszuspielen. Im Gegenteil: Die Akteur:innen in der beruflichen und akademischen Bildung müssen enger zusammenarbeiten, um verlässliche Übergänge zu schaffen und innovative Kooperationsmodelle zu entwickeln. Die Politik muss die nachschulische Bildung aus einer übergreifende Gesamtperspektive heraus betrachten und komplementär ausgestalten. Zugleich müssen junge Menschen bei der für sie passenden Berufswahl bestmöglich unterstützt werden, sodass niemand am Übergang Schule – Beruf verloren geht.
Higher order statistics of curvature perturbations in IFF model and its Planck constraints
Creators: name: Fujita, Tomohiro
name: Yokoyama, Shuichiro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the power spectrum P_ζ, and non-linear parameters f_nl and τ_nl of the curvature perturbation induced during inflation by the electromagnetic fields in the kinetic coupling model (IFF model). By using the observational result of P_ζ, f_nl and τ_nl reported by the Planck collaboration, we study the constraint on the model comprehensively. Interestingly, if the single slow-rolling inflaton is responsible for the observed P_ζ, the constraint from τ_nl is most stringent. We also find a general relationship between f_nl and τ_nl generated in this model. Even if f_nl \sim O(1), a detectable τ_nl can be produced.
description: 19 pages, 4 figures. ver. 3: minor revisions, references added
Improving Li$_2$O$_2$ conductance via polaron preemption: an \textit{ab initio} study of Si doping
Creators: name: Timoshevskii, Vladimir
name: Feng, Zimin
name: Bevan, Kirk
name: Zaghib, Karim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on \textit{ab initio} electronic structure simulations of Li$_2$O$_2$, where 1.6% of lithium atoms are substituted by silicon. It is demonstrated that this leads to the formation of conducting impurity states in the band gap of Li$_2$O$_2$. We show that these states originate from the antibonding orbitals of the oxygen pairs and are remarkably stable against possible polaron formation (upon electron injection). Through this polaron preemption mechanism, the proposed compound is expected to show significantly higher electronic mobility than stoichiometric Li$_2$O$_2$, which could have significant applications in lithium-air batteries.
description: 4 pages, 4 figures
title: Отбор и оценка персонала
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В учебнике рассматриваются основные вопросы современного отбора персонала, его стратегии, предлагается анализ труда и рабочего места, отдельно раскрываются аспекты аттестации и аудита персонала. Автором отмечается кризис традиционной системы отношений между человеком и организацией, поэтому рассматриваются разнообразные инструменты отбора персонала, которые претерпели серьезные изменения за последние годы, но приобрели более-менее стандартный характер. Подготовлен в соответствии с Федеральным государственным образовательным стандартом высшего образования. Учебник предназначен для изучения дисциплин «Отбор и оценка персонала», «Основы оценки персонала», «Оценка персонала», «Подбор персонала» и других аналогичных курсов студентами, обучающимися по направлениям подготовки 38.03.02 «Менеджмент» и 38.03.03 «Управление персоналом». Может быть использован студентами других направлений подготовки и специальностей, учебными планами которых предусмотрено изучение указанных дисциплин.
Sessile drops in microgravity
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: arXiv
Year: 2013
Subjects: subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Interfaces with a liquid are governing several phenomena. For instance, these interfaces are giving the shape of sessile droplets and rule the spread of liquids on surfaces. Here we analyze the shape of sessile axisymmetric drops and how it is depending on the gravity, obtaining results in agreement with experimental observations under conditions of microgravity.
description: Sessile drops, microgravity, ADSA, Young-Laplace equation, Contact angle
TASIT-Arg: Versión A
Creators: name: Sampedro, Bárbara
name: Abusamra, Valeria
name: Caamaño, Paula
name: Ferreres, Aldo
name: Leiva, Samanta
Publisher: name: OSF
Year: 2023

description: Consignas para la administración de la versión A del TASIT-Arg
The twofold debris disk around HD 113766 A - Warm and cold dust as seen with VLTI/Midi and Herschel/Pacs
Creators: name: Olofsson, Johan
name: Henning, Thomas
name: Nielbock, Markus
name: Augereau, Jean-Charles
name: Juhasz, Attila
name: Oliveira, Isa
name: Absil, Olivier
name: Tamanai, Akemi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Warm debris disks are a sub-sample of the large population of debris disks, and display excess emission in the mid-IR. Around solar-type stars, very few objects show emission features in mid-IR spectroscopic observations, that are attributed to small, warm silicate dust grains. The origin of this warm dust can possibly be explained either by a collision between several bodies or by transport from an outer belt. We present and analyse new far-IR Herschel/Pacs observations, supplemented by ground-based data in the mid-IR (VLTI/Midi and VLT/Visir), for one of these rare systems: the 10-16 Myr old debris disk around HD 113766 A. We improve an existing model to account for these new observations, and better constrain the spatial distribution of the dust and its composition. We underline the limitations of SED modelling and the need for spatially resolved observations. We find that the system is best described by an inner disk located within the first AU, well constrained by the Midi data, and an outer disk located between 9-13 AU. In the inner dust belt, our previous finding of Fe-rich crystalline olivine grains still holds. We do not observe time variability of the emission features over at least a 8 years time span, in a environment subjected to strong radiation pressure. The time stability of the emission features indicates that μm-sized dust grains are constantly replenished from the same reservoir, with a possible depletion of sub-μm-sized grains. We suggest that the emission features may arise from multi-composition aggregates. We discuss possible scenarios concerning the origin of the warm dust. The compactness of the innermost regions as probed by Midi, as well as the dust composition, suggest that we are witnessing the outcomes of (at least) one collision between partially differentiated bodies, in an environment possibly rendered unstable by terrestrial planetary formation.
Students' emotions in feedback situations in higher education: a scoping review protocol
Creators: name: Hausman, Matthieu
name: Detroz, Pascal
name: Verpoorten, Dominique
name: Durieux, Nancy
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Education
subject: Higher Education
subject: Emotion
subject: Feedback
subject: Higher Education
subject: Student

description: Research into feedback practices in higher education is currently evolving. The most significant of these developments seems to be the evolution of the way feedback is conceptualized. Indeed, feedback is now seen as a process, in which the learner is actively engaged, whereas it was long accepted that it was a product, information provided mainly by the teacher to a student with the aim of improving his/her learning. This conceptual evolution has led to a more complex understanding of feedback, which is now characterized by several dimensions, including an affective dimension. Within the latter, students' emotions have become a research focus in this specific context. However, emotions have been little addressed until recent years, not only in the field of feedback. From that point on, we wanted to conduct a scoping review in order to map and describe the available evidence on students' emotions in feedback situations in higher education. This protocol and the future corresponding scoping review are reported in accordance with the ‘Preferred Reporting Items for Systematic Reviews and Meta-analyses for Scoping Reviews (PRISMA-ScR) checklist’ (Tricco et al., 2018) and conducted in accordance with the JBI methodology for scoping reviews (Peters et al., 2020).
Strange quark matter in strong magnetic fields within a confining model
Creators: name: Sinha, Monika
name: Huang, Xu-Guang
name: Sedrakian, Armen
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We construct an equation of state of strange quark matter in strong magnetic field within a confining model. The confinement is modeled by means of the Richardson potential for quark-quark interaction modified suitably to account for strong magnetic field. We compare our results for the equation of state and magnetization of matter to those derived within the MIT bag model. The differences between these models arise mainly due to the momentum dependence of the strong interaction between quarks in the Richardson model. Specifically, we find that the magnetization of strange quark matter in this model has much more pronounced de Haas-van Alfven oscillations than in the MIT bag model, which is the consequence of the (static) gluon-exchange structure of the confining potential.
description: v3: Published version, a correction in the title; v2: minor changes, version in print, v1: 7 page, 5 figures
title: ДИНАМИКА ВОЗБУДИМОСТИ ВЕГЕТАТИВНОЙ НЕРВНОЙ СИСТЕМЫ СТУДЕНТОВ ПРИ ВЫПОЛНЕНИИ СТРЕСС-ТЕСТА НА СИЛОВОЙ ПЛАТФОРМЕ
Creators: name: Григорян, М.
name: Балашова, А.
name: Власенко, Р.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Возбудимость вегетативной нервной системы является объективным критерием оценки функционального состояния субъекта в различных условиях. Научный интерес представляет изучение особенностей вегетативной регуляции индивида в состоянии мотивационно-эмоционального напряжения. В исследовании приняли участие 32 студента Института медицинского образования НовГУ 1–2 курса. Испытуемым предлагалось выполнить стресс-тест на силовой платформе, до и после тестирования определяли вегетативный индекс Кердо. Оценивали способность студентов поддерживать стабильность регуляции позы в неблагоприятных по ориентирующему сигналу условиях. У нормотоников более выраженная тенденция к увеличению индекса Кердо, а у симпатотоников наблюдали как снижение, так и увеличение индекса. Отмечали наибольшее число положительных корреляционных взаимосвязей между параметрами стабилометрии в группе симпатотоников.
Coexistence of diffusive and ballistic transport in a simple spin ladder
Creators: name: Znidaric, Marko
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that in a nonintegrable spin ladder system with the XX type of coupling along the legs and the XXZ type along the rungs there are invariant subspaces that support ballistic magnetization transport. In the complementary subspace the transport is found to be diffusive. This shows that (i) quantum chaotic systems can possess ballistic subspaces, and (ii) diffusive and ballistic transport modes can coexist in a rather simple nonintegrable model. In the limit of an infinite anisotropy in rungs the system studied is equivalent to the one-dimensional Hubbard model.
description: 5 pages, 4 figures
Characterization methods for Shiga toxin-producing E. coli - a part of OH-HARMONY-CAP
Creators: name: Johannessen GS
name: Tozzoli R
name: A, Pista
name: Flink C
name: Bolton D
name: Kirchner M
name: Boisen N
Publisher: name: Zenodo
Year: 2022
Subjects: OH-HARMONY-CAP
STEC
characterization methods

description: OHEJP Project: OH-HARMONY-CAP
Neutrino searches with the IceCube telescope
Creators: name: Aguilar, Juan A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The IceCube Neutrino Observatory is an array of 5,160 photomultipliers (PMTs) deployed on 86 strings at 1.5-2.5 km depth within the ice at the South Pole. The main goal of the IceCube experiment is the detection of an astrophysical neutrino signal. In this contribution we present the results of the point source analysis on the data taken from April 2008 to May 2011, when three detector configurations were operated: the 40-string configuration (IC-40), the 59-string configuration (IC-59) and the 79-string configuration (IC-79). No significant excess indicative of point sources of neutrinos has been found, and we present upper limits for an $E^{-2}$ muon neutrino flux for a list of candidate sources. For the first time these limits start to reach $10^{-12}$ TeV$^{-1}$ cm$^{-2}$ s$^{-1}$ in some parts of the sky.
description: 3 pages, 3 figures, in proceedings of NOW 2012, to appear in Nucl. Phys. B (Proc. Suppl.)
ОҚ ЗОТСИЗ КАЛАМУШЛАР ЖИГАРИНИНГ МЕЪЁРДАГИ МОРФОЛОГИК ВА МОРФОМЕТРИК ПАРАМЕТРЛАРИ
Creators: name: Усанов, Санжар
name: Хидиров, Зиядулла
name: Олимова, Жасмина
Publisher: name: Zenodo
Year: 2023

description: Инсон учун муҳим бўлган аъзолардан бири бу – жигар бези бўлиб, унга зарарли таъсир кўрсатадиган омиллардан метаболик, токсик, микробиологик, қон айланиши бузилиши ва неопластик факторларни санаб ўтиш мумкин. Ушбу муҳим органнинг патологияси ва унинг терапияси масалаларини ўрганишда лаборатория ва қишлоқ хўжалик ҳайвонларида кенг қамровли тадқиқотлар ўтказишни тақозо этади, чунки бу лаборатория шароитида экспериментдан кўра кўпроқ инсон ва ҳайвон касалликларида препарат воситаларининг таъсирини баҳолашда қулай, хавфсиз ва камиқтисод бўладиган шароитни яратиб беради.
Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems
Creators: name: Brown, D. J. A.
name: Cameron, A. Collier
name: Díaz, R. F.
name: Doyle, A. P.
name: Gillon, M.
name: Lendl, M.
name: Smalley, B.
name: Triaud, A. H. M. J.
name: Anderson, D. R.
name: Enoch, B.
name: Hellier, C.
name: Maxted, P. F. L.
name: Miller, G. R. M.
name: Pollacco, D.
name: Queloz, D.
name: Boisse, I.
name: Hébrard, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present measurements of the spin-orbit alignment angle, lambda, for the hot Jupiter systems WASP-32, WASP-38, and HAT-P-27/WASP-40, based on data obtained using the HARPS spectrograph. We analyse the Rossiter-McLaughlin effect for all three systems, and also carry out Doppler tomography for WASP-32 and WASP-38. We find that WASP-32 (T_eff = 6140 +90 -100 K) is aligned, with an alignment angle of lambda = 10.5 +6.4 -6.5 degrees obtained through tomography, and that WASP-38 (T_eff = 6180 +40 -60 K) is also aligned, with tomographic analysis yielding lambda = 7.5 +4.7 -6.1 degrees. This latter result provides an order of magnitude improvement in the uncertainty in lambda compared to the previous analysis of Simpson et al. (2011). We are only able to loosely constrain the angle for HAT-P-27/WASP-40 (T_eff = 5190 +160 -170 K) to lambda = 24.2 +76.0 -44.5 degrees, owing to the poor signal-to-noise of our data. We consider this result a non-detection under a slightly updated version of the alignment test of Brown et al. (2012). We place our results in the context of the full sample of spin-orbit alignment measurements, finding that they provide further support for previously established trends.
description: 19 pages, including appendix. 8 tables, 7 figures. Published in ApJ
Rotational dynamics of an asymmetric top molecule in parallel electric and non-resonant laser fields
Creators: name: Omiste, Juan J.
name: González-Férez, Rosario
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a theoretical study of the rotational dynamics of asymmetry top molecules in an electric field and a parallel non-resonant linearly polarized laser pulse. The time-dependent Schrödinger equation is solved within the rigid rotor approximation. Using the benzonitrile molecule as prototype, we investigate the field-dressed dynamics for experimentally accessible field configurations and compare these results to the adiabatic predictions. We show that for an asymmetric top molecule in parallel fields, the formation of the pendular doublets and the avoided crossings between neighboring levels are the two main sources of non-adiabatic effects. We also provide the field parameters under which the adiabatic dynamics would be achieved.
description: 11 pages and 15 figures
CFT(4) Partition Functions and the Heat Kernel on AdS(5)
Creators: name: Lal, Shailesh
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly reorganise the partition function of an arbitrary CFT in four spacetime dimensions into a heat kernel form for the dual string spectrum on AdS(5). On very general grounds, the heat kernel answer can be expressed in terms of a convolution of the one-particle partition function of the four-dimensional CFT. Our methods are general and would apply for arbitrary dimensions, which we comment on.
description: 15 pages
HST/COS observations of a new population of associated QSO absorbers
Creators: name: Muzahid, Sowgat
name: Srianand, Raghunathan
name: Arav, Nahum
name: Savage, Blair D
name: Narayanan, Anand
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) We present a sample of new population of associated absorbers, detected through Ne VIII λλ770,780 absorption, in HST/COS spectra of intermediate redshift (0.45 < z < 1.21) quasars (QSOs). Our sample comprised of total 12 associated Ne VIII systems detected towards 8 lines of sight (none of them are radio bright). The incidence rate of these absorbers is found to be 40%. Majority of the Ne VIII systems at small ejection velocities (v_ej) show complete coverage of the background source, but systems with higher v_ej show lower covering fractions (i.e. f_c < 0.8) and systematically higher values of N(Ne VIII). We detect Mg X λλ609,624 absorption in 7 out of the 8 Ne VIII systems where the expected wavelength range is cover by our spectra and is free of any strong blending. We report the detections of Na IX λλ681,694 absorption, for the first time, in three highest ejection velocity (e.g. v_ej > 7,000 km/s) systems in our sample. All these systems show very high N(Ne VIII) (i.e. > 10^{15.6} cm^{-2}), high ionization parameter (i.e. log U > 0.5), high metallicity (i.e. Z > Z_{\odot}), and ionization potential dependent f_c values. The observed column density ratios of different ions are reproduced by multiphase photoionization (PI) and/or collisional ionization (CI) equilibrium models. While solar abundance ratios are adequate in CIE, enhancement of Na relative to Mg is required in PI models to explain our observations.
description: Submitted to MNRAS after minor correction suggested by the referee (23 pages, 21 figures, 9 tables)
title: Морская экология: экосистемы и подводные ландшафты
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В учебном пособии раскрываются актуальные проблемы морской экологии. Первая часть посвящена вопросам появления и эволюции жизни на Земле, биоразнообразию морских беспозвоночных, экологии гидробионтов и подразделению арены жизни в океане. Во второй части в рамках научного направления морских экосистем и подводных ландшафтов обсуждаются вопросы континуальности и дискретности океаносферы, значения тектоники и рельефа в ландшафтной дифференциации береговой зоны и шельфа, детального районирования морских экорегионов и концепция подводного ландшафта. Третья часть включает описание зональных типов ландшафтов Мирового океана, особо отмечается, что быстро растущая антропогенная деятельность оказывает негативное воздействие на экосистему Мирового океана в целом. В заключении предлагается программа комплексного ландшафтно-биономического исследования береговой зоны и шельфа Мирового океана. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по направлениям подготовки 05.03.04 «Гидрометеорология», 05.03.06 «Экология и природопользование», изучающих дисциплину «Морская экология», а также иные дисциплины, связанные с решением задач рационального использования и охраны береговой зоны и шельфа Мирового океана.
Dynamical mean-field theory for quantum spin systems: Test of solutions for magnetically ordered states
Creators: name: Otsuki, Junya
name: Kuramoto, Yoshio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A spin version of dynamical mean-field theory is extended for magnetically ordered states in the Heisenberg model. The self-consistency equations are solved with high numerical accuracy by means of the continuous-time quantum Monte Carlo with bosonic baths coupled to the spin. The resultant solution is critically tested by known physical properties. In contrast with the mean-field theory, soft paramagnons appear near the transition temperature. Moreover, the Nambu-Goldstone mode (magnon) in the ferromagnetic phase is reproduced reasonably well. However, antiferromagnetic magnons have an energy gap in contradiction to the Nambu-Goldstone theorem. The origin of this failure is discussed in connection with an artificial first-order nature of the transition.
description: 8 pages, 5 figures
title: БИПОЛЯРНОЕ АФФЕКТИВНОЕ РАССТРОЙСТВО (литературные и собственные данные)
Creators: name: Дорофеева, Д.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: На сегодняшний день диагностика биполярного аффективного расстройства может затрудняться в связи с различными причинами. Это в свою очередь приводит к неблагоприятным последствиям для пациента и врача, ведь такие пациенты труднокурабельны, социально дезадаптированы. Особенно важно учитывать подростковый возраст, ведь именно в этом возрасте происходит формирование личности, выбор и освоение
новых социальных ролей и функций. Континуальное течение при этом усугубляет динамику течения биполярных расстройств, что в свою очередь усложняет назначения лечения таким пациентам. Коморбидность, встречающаяся при биполярном аффективном расстройстве, привносит в данное психическое расстройство ряд проблем. Например, наиболее частым соматическим заболеванием является гипертоническая болезнь, также у пациентов отмечается зависимость от алкоголя и психоактивных веществ. Стоит отметить, что в данном
психическом заболевании преобладают депрессивные состояния, которые чреваты суицидальными попытками и завершёнными суицидами. Адекватность назначенного лечения, при учитывании всех факторов, является немаловажным компонентом для ухода пациента в период ремиссии и функционировании его как полноценного индивидуума в обществе.
Persistierende Effekte von 4,5,6,7-Tetrabromobenzotriazol (TBB) auf die zelluläre und synaptische Erregbarkeit im Pilocarpinmodell der Temporallappenepilepsie
Creators: name: Schulze, Felix Burckhart
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 610 Medical sciences Medicine

description: Untersuchung des Einflusses des selektiven CK 2-Inhibitors Tetrabromobenzotriazol auf die Epileptogenese und die Ausprägung der chronischen Epilepsie in der Pyramidenzellschicht der CA1-Region des Hippocampus. Verwendet wurden extrazelluläre Feldpotenzialmessungen, intrazelluläre Potenzialableitungen und die Analyse von epileptischen Anfällen. Die Gabe von TBB vor der Induktion eines Status Epilepticus mit Pilocarpin und der dem Status Epilepticus folgenden Entwicklung einer chronischen Epilepsie bremst über Beeinflussung von Kalium- und HCN-Kanälen die Krankheitsprogression.
Covid-19 related psychological manifestation during lockdown among India’s working professionals: An online survey
Creators: name: Malik, Deepak
name: Kumar, Sunil
name: Sharma, Yogita
name: Yadav, V N
Publisher: name: figshare
Year: 2021
Subjects: subject: Health Care
subject: 170106 Health, Clinical and Counselling Psychology
subject: FOS: Psychology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Background: The novel coronavirus disease (COVID-19) pandemic has expanded globally, causing enormous physical, psychosocial, and economical harm to individuals all over the world. COVID-19 has a significant psychological influence on the general population, according to existing literature. Aim: The study aimed to document the psychological manifestation due to COVID-19 lockdown, and evaluate the impact on working population of India. Methods: It was a cross-sectional study, using a pre-tested, designed, web-based Google Forms questionnaire, using snowball sampling to collect on socio-demographic and clinical parameters related to COVID-19 lockdown, with working professionals who were invited to participate. Results: A total of 200 participants were taken part in this study. The majority (92%) were between the ages of 26 and 35, unmarried (56%). Overall, 90% (confidence interval (CI) 85.56-94.18) were concerned about a rise in COVID-19 cases, 21% (CI: 15.72-27.31) were concerned about the pandemic's end, and 49% (CI: 41.88-56.15) voiced a mix of fear of dying, uncertainty about the pandemic's end, and exposing family members. Feeling sad (42.5%; CI: 35.56-49.67) was reported high psychological manifestation, followed by anxiety (40%), irritability (38%), helplessness (35.5%), fear and apprehension (33%), and insomnia (22%). Despite these findings, 46% showed signs of being able to rebound after a difficult phase. Conclusion: It was concluded that the COVID-19 pandemic lockdown have resulted in a wide range of psychological issues. The current findings may help health professionals and the general public in providing mental health assistance to those who need it.
Pairing in exotic neutron rich nuclei around the drip line and in the crust of neutron stars
Creators: name: Pastore, A.
name: Margueron, J.
name: Schuck, P.
name: Viñas, X.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Exotic and drip-line nuclei as well as nuclei immersed in a low density gas of neutrons in the outer crust of neutron stars are systematically investigated with respect to their neutron pairing properties. This is done using Skyrme density-functional and different pairing forces such as a density-dependent contact interaction and a separable form of a finite-range Gogny interaction. Hartree-Fock-Bogoliubov and BCS theories are compared. It is found that neutron pairing is reduced towards the drip line while overcast by strong shell effects. Furthermore resonances in the continuum can have an important effect counterbalancing the tendency of reduction and leading to a persistence of pairing at the drip line. It is also shown that in these systems the difference between HFB and BCS approaches can be qualitatively large.
Radiation Transfer of Models of Massive Star Formation. II. Effects of the Outflow
Creators: name: Zhang, Yichen
name: Tan, Jonathan C.
name: McKee, Christopher F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (Abridged) We present radiation transfer simulations of a massive (8 Msun) protostar forming from a massive (Mc=60 Msun) protostellar core, extending the model developed by Zhang & Tan (2011). The two principal improvements are (1) developing a model for the density and velocity structure of a disk wind that fills the bipolar outflow cavities; and (2) solving for the radially varying accretion rate in the disk due to a supply of mass and angular momentum from the infall envelope and their loss to the disk wind. One consequence of the launching of the disk wind is a reduction in the amount of accretion power that is radiated by the disk. For the transition from dusty to dust-free conditions where gas opacities dominate, we now implement a gradual change as a more realistic approximation of dust destruction. We study how the above effects, especially the outflow, influence the SEDs and the images of the protostar. Dust in the outflow cavity significantly affects the SEDs at most viewing angles. It further attenuates the short-wavelength flux from the protostar, controlling how the accretion disk may be viewed, and contributes a significant part of the near- and mid-IR fluxes. These fluxes warm the disk, boosting the mid- and far-IR emission. We find that for near face-on views, the SED from the near-IR to about 60 micron is very flat, which may be used to identify such systems. We show that the near-facing outflow cavity and its walls are still the most significant features in images up to 70 micron, dominating the mid-IR emission and determining its morphology. The thermal emission from the dusty outflow itself dominates the flux at ~20 micron. The detailed distribution of the dust in the outflow affects the morphology, for example, even though the outflow cavity is wide, at 10 to 20 micron, the dust in the disk wind can make the outflow appear narrower than in the near-IR bands.
description: 23 pages, 17 figures, 2 tables, accepted to ApJ
TASIT-Arg: Versión B
Creators: name: Sampedro, Bárbara
name: Abusamra, Valeria
name: Caamaño, Paula
name: Ferreres, Aldo
name: Leiva, Samanta
Publisher: name: OSF
Year: 2023

description: Consignas para la administración de la versión B del TASIT-Arg
title: ГИПОПИТУИТАРИЗМ: ГИПОГОНАДОТРОПНЫЙ ГИПОГОНАДИЗМ У МАЛЬЧИКА 12 ЛЕТ. ПАТОФИЗИОЛОГИЧЕСКИЕ АСПЕКТЫ
Creators: name: Ершевская, А.
name: Гамзатов, М.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Гипогонадотропный гипогонадизм – это орфанное заболевание, среди детей и подростков встречается крайне редко. В статье приведен анализ литературных данных о частоте, вопросах классификации заболевания, освещены вопросы патогенеза гипогонадизма. Изучены литературные данные о генетической природе гипогонадизма, показаны геныкандидаты гипогонадизма, клинические варианты течения синдрома. Приведен пример собственного наблюдения ребенка 12 лет с диагнозом гипогонадотропный гипогонадизм.
Получены выводы, что заместительная терапия препаратами ФСГ имитирует начало созревания клеток Сертоли и в периоде полового созревания способствует установлению взаимосвязи между клетками Сертоли и Лейдига, что позволит в будущем поддерживать сперматогенез.
Perangkat lunak bantu mengenal huruf arab melayu ke bentuk huruf latin bahasa Indonesia
Creators: name: Aini, Nuril
name: Abdillah, Leon Andretti
name: Jemakmun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: The development of computer science has contributed greatly for increasing of efficiency and effectively. Many areas are covered by computer science, included education. The purpose of this research is to introduce jawi a type of Indonesian letters. Jawis letter is one of the most popular letter in the past. But right now few people can read and understand it. Many documents in the past was written in Jawi. The writer develop or build the software using Pressman method, and tools such as Microsoft Visual Basic, and Microsoft Access. This software can introduce Jawi then people can learn it easily.
Enhanced Transmission and Giant Faraday Effect in Magnetic Metal-Dielectric Photonic Structures
Creators: name: Smith, Kyle
name: Carroll, Turhan
name: Bodyfelt, Joshua D.
name: Vitebskiy, Ilya
name: Chabanov, Andrey A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Due to their large electric conductivity, stand-alone metallic films are highly reflective at microwave frequencies. For this reason, it is nearly impossible to observe Faraday rotation in ferromagnetic metal layers, even in films just tens of nanometers thick. Here, we show using numerical simulations that a stack of cobalt nano-layers interlaced between dielectric layers can become highly transmissive and display a large Faraday rotation in a finite frequency band. A 45-degree Faraday rotation can be achieved with metallic ferromagnetic layers as thin as tens of nanometers.
description: 4 Figures