cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The dynamical state of the First Hydrostatic Core Candidate Cha-MMS1
Creators: name: Tsitali, A. E.
name: Belloche, A.
name: Commerçon, B.
name: Menten, K. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations of First Hydrostatic Core candidates, a theoretically predicted evolutionary link between the prestellar and protostellar phases, are vital for probing the earliest phases of star formation. We aim to determine the dynamical state of the First Hydrostatic Core candidate Cha-MMS1. We observed Cha-MMS1 in various transitions with the APEX and Mopra telescopes. The molecular emission was modeled with a radiative transfer code to derive constraints on the envelope kinematics. We derive an internal luminosity of 0.08 - 0.18 Lsol. An average velocity gradient of 3.1(0.1) km/s/pc over 0.08 pc is found perpendicular to the filament in which Cha-MMS1 is embedded. The gradient is flatter in the outer parts and at the innermost 2000 - 4000 AU. These features suggest solid-body rotation beyond 4000 AU and slower, differential rotation beyond 8000 AU. The origin of the flatter gradient in the innermost parts is unclear. The classical infall signature is detected in HCO+ 3-2 and CS 2-1. The radiative transfer modeling indicates a uniform infall velocity in the outer parts of the envelope. An infall velocity field scaling with r^(-0.5) is consistent with the data for r < 9000 AU. The infall velocities are 0.1 - 0.2 km/s at r > 3300 AU and 0.04 - 0.6 km/s at r < 3300 AU. Both the internal luminosity of Cha-MMS1 and the infall velocity field in its envelope are consistent with predictions of MHD simulations for the first core phase. There is no evidence for a fast, large-scale outflow stemming from Cha-MMS1 but excess emission from the high-density tracers CS 5-4, CO 6-5, and CO 7-6 suggests the presence of higher-velocity material at the inner core. Its internal luminosity excludes Cha-MMS1 being a prestellar core. The kinematical properties of its envelope are consistent with Cha-MMS1 being a first core candidate or a very young Class 0 protostar.(abridged).
description: Accepted for publication in A&A. 27 pages, 22 figures, 13 tables. A version with high-resolution figures is available on request to the first author
On a finite element approach for the solution of a mechanically stimulated biochemical fracture healing model
Creators: name: Sapotnick, Alexander
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Finite element method
subject: bone fracture healing
subject: bone repair
subject: finite calculus method
subject: time-discontinuous Galerkin method
subject: Finite Elemente Methode
subject: Frakturheilung
subject: Knochenregeneration
subject: finite Calculus Methode
subject: zeitdiskontinuierliches Galerkinverfahren
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
On the impact of adverse weather uncertainty on aircraft routing : identification and mitigation
Creators: name: Sauer, Manuela
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Thunderstorm hazards
subject: nowcast uncertainty
subject: routing tactics
subject: weather avoidance
subject: Gewitter
subject: Nowcastunsicherheit
subject: Routingtaktiken
subject: Gewitterumfliegung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: [no abstract]
Optical design and numerical modeling of the AEI 10 m prototype sub-SQL interferometer
Creators: name: Gräf, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Optical design
subject: standard quantum limit
subject: coating Brownian thermal noise
subject: Optisches Design
subject: Standardquantenlimit
subject: Brown'sches Spiegelbeschichtungsrauschen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Berry curvature induced valley Hall effect in non-encapsulated hBN/Bilayer graphene heterostructure aligned with near-zero twist angle
Creators: name: Shintaku, Teppei
name: Kareekunnan, Afsal
name: Akabori, Masashi
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Mizuta, Hiroshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Valley Hall effect has been observed in asymmetric single-layer and bilayer graphene systems. In single-layer graphene systems, asymmetry is introduced by aligning graphene with hexagonal boron nitride (hBN) with a near-zero twist angle, breaking the sub-lattice symmetry. Although a similar approach has been used in bilayer graphene to break the layer symmetry and thereby observe the valley Hall effect, the bilayer graphene was sandwiched with hBN on both sides in those studies. This study looks at a much simpler, non-encapsulated structure where hBN is present only at the top of graphene. The crystallographic axes of both hBN and bilayer graphene are aligned. A clear signature of the valley Hall effect through non-local resistance measurement ($R_{\rm{NL}}$) was observed. The observed non-local resistance could be manipulated by applying a displacement field across the heterostructure. Furthermore, the electronic band structure and Berry curvature calculations validate the experimental observations.
On the role of CIC-5 anion/proton exchangers in endocytosis : insights from intestinal infections and the hereditary renal dent's disease
Creators: name: Ruhe, Frederike Antonia
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2018
Subjects: subject: TcdA
subject: CIC-5
subject: endocytosis
subject: Endozytose
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Regret theory, Allais' Paradox, and Savage's omelet
Creators: name: Bardakhchyan, Vardan G.
name: Allahverdyan, Armen E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Theoretical Economics (econ.TH)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We study a sufficiently general regret criterion for choosing between two probabilistic lotteries. For independent lotteries, the criterion is consistent with stochastic dominance and can be made transitive by a unique choice of the regret function. Together with additional (and intuitively meaningful) super-additivity property, the regret criterion resolves the Allais' paradox including the cases were the paradox disappears, and the choices agree with the expected utility. This superadditivity property is also employed for establishing consistency between regret and stochastic dominance for dependent lotteries. Furthermore, we demonstrate how the regret criterion can be used in Savage's omelet, a classical decision problem in which the lottery outcomes are not fully resolved. The expected utility cannot be used in such situations, as it discards important aspects of lotteries.
The Exceptional Soft X-ray Halo of the Galaxy Merger NGC 6240
Creators: name: Nardini, Emanuele
name: Wang, Junfeng
name: Fabbiano, Giuseppina
name: Elvis, Martin
name: Pellegrini, Silvia
name: Risaliti, Guido
name: Karovska, Margarita
name: Zezas, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report on a recent ~150-ks long Chandra observation of the ultraluminous infrared galaxy merger NGC 6240, which allows a detailed investigation of the diffuse galactic halo. Extended soft X-ray emission is detected at the 3-sigma confidence level over a diamond-shaped region with projected physical size of ~110x80 kpc, and a single-component thermal model provides a reasonably good fit to the observed X-ray spectrum. The hot gas has a temperature of ~7.5 million K, an estimated density of 2.5x10^{-3} cm^{-3}, and a total mass of ~10^10 M_sun, resulting in an intrinsic 0.4-2.5 keV luminosity of 4x10^41 erg s^{-1}. The average temperature of 0.65 keV is quite high to be obviously related to either the binding energy in the dark-matter gravitational potential of the system or the energy dissipation and shocks following the galactic collision, yet the spatially-resolved spectral analysis reveals limited variations across the halo. The relative abundance of the main alpha-elements with respect to iron is several times the solar value, and nearly constant as well, implying a uniform enrichment by type II supernovae out to the largest scales. Taken as a whole, the observational evidence is not compatible with a superwind originated by a recent, nuclear starburst, but rather hints at widespread, enhanced star formation proceeding at steady rate over the entire dynamical timescale (~200 Myr). The preferred scenario is that of a starburst-processed gas component gently expanding into, and mixing with, a pre-existing halo medium of lower metallicity (Z ~ 0.1 solar) and temperature (kT ~ 0.25 keV). This picture cannot be probed more extensively with the present data, and the ultimate fate of the diffuse, hot gas remains uncertain. Under some favorable conditions, at least a fraction of it might be retained after the merger completion, and evolve into the hot halo of a young elliptical galaxy.
description: 56 pages, 16 figures, 7 tables. Accepted for publication in ApJ
Challenging the nature of low energy plasmon excitations in CaC$_6$ using electron energy-loss spectroscopy
Creators: name: Roth, Friedrich
name: König, Andreas
name: Kramberger, Christian
name: Pichler, Thomas
name: Büchner, Bernd
name: Knupfer, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The nature of low energy plasmon excitations plays an important role in understanding the low energy electronic properties and coupling mechanism of different superconducting compounds such as CaC$_6$. Recent ab-initio studies predict a charge carrier intraband plasmon in keeping with a low energy acoustic plasmon. Here, we have studied the low-energy electronic excitations of CaC$_6$ using high-resolution electron energy-loss spectroscopy in transmission at low temperatures. The analysis of the core-level excitations leads to the conclusion that hybridization between graphite and calcium states plays an essential role in this graphite intercalated compound. Regarding the low energy plasmon excitation, we observe the formation of an intraband (charge carrier) plasmon with a negative dispersion at about 3.5 eV in sound agreement with the theory. Finally, a weak excitation around 1.2 eV with an almost linear dispersion relation can be observed as predicted for an acoustic plasmon that may mediate the superconducting coupling in CaC$_6$. However its optical limit at ~1 eV challenges the theoretical predictions and safely rules out an electronic superconducting coupling mechanism in CaC$_6$.
description: 5 figures
title: Маркеры метаболического синдрома у подростков с конституционально-экзогенным ожирением
Creators: name: Ларина, Наталья
name: Ройтман, Елена
name: Вебер, Виктор
name: Погребняк, Людмила
name: Сеченева, Людмила
name: Давыдова, Татьяна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Исследование посвящено проблеме ожирения в подростковом возрасте, в частности феномену метаболического синдрома. Определены маркеры метаболического синдрома у подростков с конституционально-экзогенным ожирением. Проведен анализ анамнеза, пищевого поведения и двигательной активности, клинической картины у подростков с ожирением. Выявлены основные и/или дополнительные критерии метаболического синдрома, такие как абдоминальное ожирение, артериальная гипертензия, дислипидемия, инсулинорезистентность, гиперурикемия (по критериям IDF от 2007 г.). Также обнаружены в ряде случаев сопутствующие факторы, связанные с образом жизни, а именно низкая физическая активность, нерегулярное и однообразное питание, табакокурение. У всех исследуемых подростков имеются сопутствующие заболевания, связанные с патологиями желудочно-кишечного тракта, ортопедическими патологиями, хронические заболевания ЛОР органов. Рекомендовано проведение лечебных и профилактических мероприятий у этой группы пациентов.
Can Neutrino Self-interactions Save Sterile Neutrino Dark Matter?
Creators: name: An, Rui
name: Gluscevic, Vera
name: Nadler, Ethan O.
name: Zhang, Yue
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Sterile neutrinos only interact with the Standard Model through the neutrino sector, and thus represent a simple dark matter (DM) candidate with many potential astrophysical and cosmological signatures. Recently, sterile neutrinos produced through self-interactions of active neutrinos have received attention as a particle candidate that can yield the entire observed DM relic abundance without violating the most stringent constraints from X-ray observations. We examine consistency of this production mechanism with the abundance of small-scale structure in the universe, as captured by the population of ultra-faint dwarf galaxies orbiting the Milky Way, and derive a lower bound on the sterile-neutrino particle mass of $37$ keV. Combining these results with previous limits from particle physics and astrophysics excludes $100\%$ sterile neutrino DM produced by strong neutrino self-coupling, mediated by a heavy ($\gtrsim 1~\mathrm{GeV}$) scalar particle; however, data permits sterile-neutrino DM production via a light mediator.
description: 9 pages, 5 figures, comments are welcome
Size consistency of tensor network methods for quantum many-body systems
Creators: name: Wang, Zhen
name: Han, Yongjian
name: Guo, Guang-Can
name: He, Lixin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently developed tensor network methods demonstrate great potential for addressing the quantum many-body problem, by constructing variational spaces with polynomially, instead of exponentially, scaled parameters. Constructing such an efficient tensor network, and thus the variational space, is a subtle problem and the main obstacle of the method. We demonstrate the necessity of size consistency in tensor network methods for their success in addressing the quantum many-body problem. We further demonstrate that size consistency is independent of the entanglement criterion, thus providing a general and tight constraint to construct the tensor network method.
description: 5 pages, 4 figures
On relativistic generalization of Perelman’s W-entropy and thermodynamic description of gravitational fields and cosmology
Creators: name: Ruchin, Vyacheslav
name: Vacaru, Olivia
name: Vacaru, Sergiu I.
Publisher: name: Cham : Springer
Year: 2017
Subjects: subject: Lorentz manifolds
subject: W-entropy
subject: General relativity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Using double 2+2 and 3+1 nonholonomic fibrations on Lorentz manifolds, we extend the concept of W-entropy for gravitational fields in general relativity (GR). Such F- and W-functionals were introduced in the Ricci flow theory of three dimensional (3-d) Riemannian metrics by Perelman (the entropy formula for the Ricci flow and its geometric applications. arXiv:math.DG/0211159). Non-relativistic 3-d Ricci flows are characterized by associated statistical thermodynamical values determined by W-entropy. Generalizations for geometric flows of 4-d pseudo-Riemannian metrics are considered for models with local thermodynamical equilibrium and separation of dissipative and non-dissipative processes in relativistic hydrodynamics. The approach is elaborated in the framework of classical field theories (relativistic continuum and hydrodynamic models) without an underlying kinetic description, which will be elaborated in other work. The 3+1 splitting allows us to provide a general relativistic definition of gravitational entropy in the Lyapunov–Perelman sense. It increases monotonically as structure forms in the Universe. We can formulate a thermodynamic description of exact solutions in GR depending, in general, on all spacetime coordinates. A corresponding 2+2 splitting with nonholonomic deformation of linear connection and frame structures is necessary for generating in very general form various classes of exact solutions of the Einstein and general relativistic geometric flow equations. Finally, we speculate on physical macrostates and microstate interpretations of the W-entropy in GR, geometric flow theories and possible connections to string theory (a second unsolved problem also contained in Perelman’s work) in Polyakov’s approach.
Boundary stabilization of a vibrating string with variable length
Creators: name: Ghenimi, Seyf Eddine
name: Sengouga, Abdelmouhcene
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L05, 35C10, 93D15

description: We study small vibrations of a string with time-dependent length $\ell(t)$ and boundary damping. The vibrations are described by a 1-d wave equation in an interval with one moving endpoint at a speed $\ell'(t)$ slower than the speed of propagation of the wave c=1. With no damping, the energy of the solution decays if the interval is expanding and increases if the interval is shrinking. The energy decays faster when the interval is expanding and a constant damping is applied at the moving end. However, to ensure the energy decay in a shrinking interval, the damping factor $η$ must be close enough to the optimal value $η=1$, corresponding to the transparent condition. In all cases, we establish lower and upper estimates for the energy with explicit constants.
description: 14 pages, 3 figures
An algebraic approach to BCJ numerators
Creators: name: Fu, Chih-Hao
name: Du, Yi-Jian
name: Feng, Bo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One important discovery in recent years is that the total amplitude of gauge theory can be written as BCJ form where kinematic numerators satisfy Jacobi identity. Although the existence of such kinematic numerators is no doubt, the simple and explicit construction is still an important problem. As a small step, in this note we provide an algebraic approach to construct these kinematic numerators. Under our Feynman-diagram-like construction, the Jacobi identity is manifestly satisfied. The corresponding color ordered amplitudes satisfy off-shell KK-relation and off-shell BCJ relation similar to the color ordered scalar theory. Using our construction, the dual DDM form is also established.
description: 30 pages, 7 figures
On the self-ventilation of an urban heat island
Creators: name: Gross, Günter
Publisher: name: Stuttgart : Schweizerbart Science Publishers
Year: 2019
Subjects: subject: urban rural measurements
subject: urban heat island
subject: urban wind speed
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Measurements of a new German Meteorological Service urban observation network in Hannover were used to analyse the urban heat island (UHI) and the dynamics of urban wind. The UHI was well pronounced on many nights of the year and had a maximum intensity during the observation period of more than 6K. A strong correlation between the UHI intensity and wind speed difference between the urban and the rural station was found. During the night, wind speed inside the city was significantly higher than in the surrounding rural area for an increasing air temperature contrast. This effect was attributed to the weaker thermal stability inside the city when there was a well-developed heat island, which enhanced the turbulent momentum flux from above.
The Zariski-Lipman conjecture for log canonical spaces
Creators: name: Druel, Stéphane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14B05, 32B05

description: In this paper we prove the Zariski-Lipman conjecture for log canonical spaces.
description: 8 pages
Search for exclusive Higgs and $Z$ boson decays to $ωγ$ and Higgs boson decays to $K^{*}γ$ with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Searches for the exclusive decays of the Higgs boson to an $ω$ meson and a photon or a $K^{*}$ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along with the analogous $Z$ boson decay to an $ω$ meson and a photon, are performed with a $pp$ collision data sample corresponding to integrated luminosities of up to 134 fb$^{-1}$ collected at $\sqrt{s}=13$ TeV with the ATLAS detector at the CERN Large Hadron Collider. The obtained 95% confidence-level upper limits on the respective branching fractions are ${\cal B}(H\rightarrowωγ)< 5.5\times 10^{-4}$, ${\cal B}(H\rightarrow K^{*}γ)< 2.2\times10^{-4}$ and ${\cal B}(Z\rightarrow ωγ)<3.9\times 10^{-6}$. The limits for $H\rightarrow ωγ$ and $Z\rightarrow ωγ$ are 370 times and 140 times the Standard Model expected values, respectively. The result for $Z\rightarrow ωγ$ corresponds to a two-orders-of-magnitude improvement over the limit obtained by the DELPHI experiment at LEP.
description: 37 pages in total, 4 figures, 2 tables, author list starts at page 20. Published in Physics Letters B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2019-33
Scale-free non-Hermitian skin effect in a boundary-dissipated spin chain
Creators: name: Wang, He-Ran
name: Li, Bo
name: Song, Fei
name: Wang, Zhong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the open XXZ spin chain with a PT-symmetric non-Hermitian boundary field. We find an interaction-induced scale-free non-Hermitian skin effect by using the coordinate Bethe ansatz. The steady state and the ground state in the PT broken phase are constructed, and the formulas of their eigen-energies in the thermodynamic limit are obtained. The differences between the many-body scale-free states and the boundary string states are explored, and the transition between the two at isotropic point is investigated. We also discuss an experimental scheme to verify our results.
description: 25 pages, 8 figures
Dressing phases of AdS3/CFT2
Creators: name: Borsato, Riccardo
name: Sax, Olof Ohlsson
name: Sfondrini, Alessandro
name: Stefanski, Bogdan
name: Torrielli, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the all-loop dressing phases of the AdS3/CFT2 integrable system related to type IIB string theory on AdS3 x S3 x T4 by solving the recently found crossing relations and studying their singularity structure. The two resulting phases present a novel structure with respect to the ones appearing in AdS5/CFT4 and AdS4/CFT3. In the strongly-coupled regime, their leading order reduces to the universal Arutyunov-Frolov-Staudacher phase as expected. We also compute their sub-leading order and compare it with recent one-loop perturbative results, and comment on their weak-coupling expansion.
description: 29 pages, 4 figures; v2: note added, minor changes
Coarse-graining the vertex model and its response to shear
Creators: name: Triguero-Platero, Gloria
name: Ziebert, Falko
name: Bonilla, Luis L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Tissue dynamics and collective cell motion are crucial biological processes. Their biological machinery is mostly known, and simulation models such as the "active vertex model" (AVM) exist and yield reasonable agreement with experimental observations like tissue fluidization or fingering. However, a good and well-founded continuum description for tissues remains to be developed. In this work we derive a macroscopic description for a two-dimensional cell monolayer by coarse-graining the vertex model through the Poisson bracket approach. We obtain equations for cell density, velocity and the cellular shape tensor. We then study the homogeneous steady states, their stability (which coincides with thermodynamic stability), and especially their behavior under an externally applied shear. Our results contribute to elucidate the interplay between flow and cellular shape. The obtained macroscopic equations present a good starting point for adding cell motion, morphogenetic and other biologically relevant processes.
description: 14 pages, 11 figures
Parameter estimation for pair-copula constructions
Creators: name: Haff, Ingrid Hobæk
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We explore various estimators for the parameters of a pair-copula construction (PCC), among those the stepwise semiparametric (SSP) estimator, designed for this dependence structure. We present its asymptotic properties, as well as the estimation algorithm for the two most common types of PCCs. Compared to the considered alternatives, that is, maximum likelihood, inference functions for margins and semiparametric estimation, SSP is in general asymptotically less efficient. As we show in a few examples, this loss of efficiency may however be rather low. Furthermore, SSP is semiparametrically efficient for the Gaussian copula. More importantly, it is computationally tractable even in high dimensions, as opposed to its competitors. In any case, SSP may provide start values, required by the other estimators. It is also well suited for selecting the pair-copulae of a PCC for a given data set.
description: Published in at http://dx.doi.org/10.3150/12-BEJ413 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Towards Multi-User Activity Recognition through Facilitated Training Data and Deep Learning for Human-Robot Collaboration Applications
Creators: name: Semeraro, Francesco
name: Carberry, Jon
name: Cangelosi, Angelo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.9; I.2.6; I.2.10; J.7

description: Human-robot interaction (HRI) research is progressively addressing multi-party scenarios, where a robot interacts with more than one human user at the same time. Conversely, research is still at an early stage for human-robot collaboration. The use of machine learning techniques to handle such type of collaboration requires data that are less feasible to produce than in a typical HRC setup. This work outlines scenarios of concurrent tasks for non-dyadic HRC applications. Based upon these concepts, this study also proposes an alternative way of gathering data regarding multi-user activity, by collecting data related to single users and merging them in post-processing, to reduce the effort involved in producing recordings of pair settings. To validate this statement, 3D skeleton poses of activity of single users were collected and merged in pairs. After this, such datapoints were used to separately train a long short-term memory (LSTM) network and a variational autoencoder (VAE) composed of spatio-temporal graph convolutional networks (STGCN) to recognise the joint activities of the pairs of people. The results showed that it is possible to make use of data collected in this way for pair HRC settings and get similar performances compared to using training data regarding groups of users recorded under the same settings, relieving from the technical difficulties involved in producing these data. The related code and collected data are publicly available.
description: This is the accepted manuscript. Please see published version at https://ieeexplore.ieee.org/document/10191782
title: Methoden der Klinischen Psychologie
Creators: name: Margraf, Jürgen
name: Fehm, Lydia
Publisher: name: Universitätsbibliothek Mannheim
Year: 1996

description: Digitalisierte Ausgabe 2019. Gedruckt erschienen im Handbuch Quantitative Methoden (1996), hrsg. von Edgar Erdfelder, Rainer Mausfeld, Thorsten Meiser und Georg Rudinger, beim Beltz-Verlag (Weinheim), ISBN 3-621-27280-1.
Nanocrystal Aerogels with Coupled or Decoupled Building Blocks
Creators: name: Rusch, Pascal
name: Schremmer, Björn
name: Strelow, Christian
name: Mews, Alf
name: Dorfs, Dirk
name: Bigall, Nadja C.
Publisher: name: Washington D.C. : American Chemical Society
Year: 2019
Subjects: subject: aerogel network structures
subject: building blocks
subject: interparticle contact
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The influence of interparticle contact in nanoparticle-based aerogelnetwork structures is investigated by selectively connecting or isolating the buildingblocks inside of the network, thereby coupling and decoupling them in regards to theiroptical and electronic properties. This is achieved by tuning the synthesis sequence andexchanging the point of shell growth and the point of particle assembly, leading to twodistinctly different structures as examined by electron microscopy. By thoroughexamination of the resulting optical properties of the generated structures, the clearcorrelation between nanoscopic/microscopic structure and macroscopic optical proper-ties is demonstrated. Temperature-dependent measurements and effective massapproximation calculations support ourfindings.
Quantitative study of the spin Hall magnetoresistance in ferromagnetic insulator/normal metal hybrids
Creators: name: Althammer, Matthias
name: Meyer, Sibylle
name: Nakayama, Hiroyasu
name: Schreier, Michael
name: Altmannshofer, Stephan
name: Weiler, Mathias
name: Huebl, Hans
name: Geprägs, Stephan
name: Opel, Matthias
name: Gross, Rudolf
name: Meier, Daniel
name: Klewe, Christoph
name: Kuschel, Timo
name: Schmalhorst, Jan-Michael
name: Reiss, Günter
name: Shen, Liming
name: Gupta, Arunava
name: Chen, Yan-Ting
name: Bauer, Gerrit E. W.
name: Saitoh, Eiji
name: Goennenwein, Sebastian T. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We experimentally investigate and quantitatively analyze the spin Hall magnetoresistance effect in ferromagnetic insulator/platinum and ferromagnetic insulator/nonferromagnetic metal/platinum hybrid structures. For the ferromagnetic insulator we use either yttrium iron garnet, nickel ferrite or magnetite and for the nonferromagnet copper or gold. The spin Hall magnetoresistance effect is theoretically ascribed to the combined action of spin Hall and inverse spin Hall effect in the platinum metal top layer. It therefore should characteristically depend upon the orientation of the magnetization in the adjacent ferromagnet, and prevail even if an additional, nonferromagnetic metal layer is inserted between Pt and the ferromagnet. Our experimental data corroborate these theoretical conjectures. Using the spin Hall magnetoresistance theory to analyze our data, we extract the spin Hall angle and the spin diffusion length in platinum. For a spin mixing conductance of $4\times10^{14}\;\mathrm{Ω^{-1}m^{-2}}$ we obtain a spin Hall angle of $0.11\pm0.08$ and a spin diffusion length of $(1.5\pm0.5)\;\mathrm{nm}$ for Pt in our thin film samples.
description: 16 pages, 9 figures
title: Влияние экспериментального ожирения на резистентность слизистой оболочки полости рта к микрофлоре
Creators: name: Попова, Анастасия
name: Жолдыбаева, Ботакоз
name: Максимюк, Николай
name: Яблочкина, Наталья
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В эксперименте на 10 беспородных собаках была изучена динамика изменения устойчивости эпителия слизистой оболочки полости рта к микрофлоре на фоне развития экспериментального ожирения. Критерием для анализа являлись количественные показатели ключевых клеток в мазках из полости рта, выраженные в процентах. Моделирование ожирения проводили по разработанной нами методике, включающей введение за 10 минут до кормления 1 ЕД инсулина на 1 кг веса животного, с последующим питанием стандартными сбалансированными кормами в соответствии с нормативными показателями, а затем прием пищи, обогащенной животными жирами без ограничений. Установлено, что на фоне развития алиментарного ожирения отмечается стойкая тенденция увеличения количества ключевых клеток в исследуемом материале. При этом начиная с 21 суток различия стали достоверными (P ˂ 0,05), а через 28 суток — возросли (P ˂ 0,05).
Nanoplatelet cryoaerogels with potential application in photoelectrochemical sensing
Creators: name: Schlosser, Anja
name: Meyer, Lea C.
name: Lübkemann, Franziska
name: Miethe, Jan F.
name: Bigall, Nadja C.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2019
Subjects: subject: cryoaerogel photoelectrode
subject: CdSe nanoplatelets
subject: LSV
subject: IMPS
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Semiconductor nanoparticle based porous 3D assemblies are interesting materials for various applications in the fields of photovoltaics, catalysis, or optical sensing. For use as photoelectrodes in photoelectrochemical sensors they need to be characterised by a high porosity, a good photostability, and a high charge carrier mobility. Our work reports on the preparation of cryoaerogel photoelectrodes based on CdSe nanoplatelets and their photoelectrochemical characterisation by means of linear sweep voltammetry (LSV) and intensity modulated photocurrent spectroscopy (IMPS). The obtained open-pored cryoaerogel films were observed to produce much higher photocurrents than comparable drop-cast films. By means of IMPS, the performance differences could be linked to the occurrence of charge carrier movement, which could solely be proven for the cryoaerogels. In a proof-of-principle experiment, the potential of the prepared photoelectrodes for application in photoelectrochemical sensing was moreover demonstrated.
title: Исследование закономерностей функционирования клеточных элементов миокарда при экспериментальной патологии сердца
Creators: name: Прошина, Лидия
name: Жмайлова, Светлана
name: Шевцова, Любовь
name: Прошин, Андрей
name: Быкова, Ольга
name: Федорова, Наталья
name: Григорьева, Мария
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Изучена реакция клеточных элементов миокарда при экспериментальном стрессе и сердечной недостаточности. Выявлено, что экспериментальные модели патологии сердца вызывают функциональную и структурную перестройку тканей миокарда и предрасположенность кардиомиоцитов к апоптозу. Для работы использовались самцы белых лабораторных крыс линии Wistar половозрелого возраста средней массой 250,0±14,3 гр. Морфологическое исследование проведено с использованием светооптического бинокулярного микроскопа AxioscopeA1 (Carl Zeiss, Германия). В качестве модели эмоционального стресса использовали иммобилизацию животных с дополнительным апериодическим электрокожным раздражением. Модель хронической сердечной недостаточности воспроизводилась по методу В.И.Инчиной (2000 г.) путем 20-минутного плавания крыс до глубокого утомления с предварительным введением им за 10-15 минут до плавания 0,1 мл 1%-го раствора мезатона в течение 14 дней.
Nanoporous hybrid core–shell nanoparticles for sequential release
Creators: name: Jahns, Mandy
name: Warwas, Dawid Peter
name: Krey, Robert Marc
name: Nolte, Katharina
name: König, Sandra
name: Fröba, Michael
name: Behrens, Peter
Publisher: name: London : Royal Society of Chemistry
Year: 2019
Subjects: subject: nanoparticles
subject: nanoporous
subject: hybrid core–shell nanoparticles
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: In this article, a new type of core–shell nanoparticle is introduced. In contrast to most reported core–shell systems, the particles presented here consist of a porous core as well as a porous shell using only non-metal materials. The core–shell nanoparticles were successfully synthesized using nanoporous silica nanoparticles (NPSNPs) as the starting material, which were coated with nanoporous phenylene-bridged organosilica, resulting in a total particle diameter of about 80 nm. The combination of a hydrophilic nanoporous silica core and a more hydrophobic nanoporous organosilica shell provides regions of different chemical character and slightly different pore sizes within one particle. These different properties combined in one particle enable the selective adsorption of guest molecules at different parts of the particle depending on the molecular charge and polarity. On the other hand, the core–shell make-up of the particles provides a sequential release of guest molecules adsorbed at different parts of the nanoparticles. As a proof of concept, loading and release experiments with dyes were performed using non polar fluorescein and polar and charged methylene blue as model guest molecules. Non polar fluorescein is mostly adsorbed on the hydrophobic organosilica shell and therefore quickly released whereas the polar methylene blue, accumulated in the hydrophilic silica core, is only released subsequently. This occurs in small doses for an extended time corresponding to a sustained release over at least one year, controlled by the organosilica shell which acts as a diffusion barrier. An initial experiment with two drugs — non polar ibuprofen and polar and charged procaine hydrochloride — has been carried out as well and shows that the core–shell nanoparticles presented here can also be used for the sequential release of more relevant combinations of molecules.
The Synchronization Power (Consensus Number) of Access-Control Objects: The Case of AllowList and DenyList
Creators: name: Frey, Davide
name: Gestin, Mathieu
name: Raynal, Michel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: C.2.4
subject: 68M14

description: This article studies the synchronization power of AllowList and DenyList objects under the lens provided by Herlihy's consensus hierarchy. It specifies AllowList and DenyList as distributed objects and shows that while they can both be seen as specializations of a more general object type, they inherently have different synchronization properties. While the AllowList object does not require synchronization between participating processes, a DenyList object requires processes to reach consensus on a specific set of processes. These results are then applied to the analysis of anonymity-preserving systems that use AllowList and DenyList objects. First, a blind-signature-based e-voting is presented. Then DenyList and AllowList objects are used to determine the consensus number of a specific decentralized key management system. Finally, an anonymous money transfer protocol using the association of AllowList and DenyList objects is studied.
description: 27 pages, 10 figures, conference
Quantum corrections to $AdS_5 \times S^5$ left-invariant superstring current algebra
Creators: name: Marchioro, Dáfni F. Z.
name: Nedel, Daniel Luiz
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work the pure spinor formulation of the superstring is used to study quantum corrections to the left current OPE algebra of the coset $PSU(2, 2|4)/SO(4, 1) \times SO(5)$ sigma model, which describes the superstring dynamics in the $AdS_5 \times S^5$ background. In particular, the one loop corrections to the simple poles of the bosonic currents are computed. Unlike the case of the double poles, we show that the simple poles suffer corrections, which are important since the simple poles contribute to the four point amplitudes. We show that the only contribution to the simple poles comes from the pure spinor Lorentz currents.
description: Accepted for publication in Physical Review D. arXiv admin note: text overlap with arXiv:1003.0701
title: Space-valence mapping of social concepts: Do we arrange negative and positive ethnic stereotypes from left to right?
Creators: name: Kühne, Katharina
name: Nenaschew, Kristina
name: Miklashevsky, Alex
Publisher: name: Universitätsverlag Potsdam
Year: 2023
Subjects: subject: 150 Psychologie

description: Introduction: The body-specificity hypothesis states that in right-handers, positive concepts should be associated with the right side and negative concepts with the left side of the body. Following this hypothesis, our study postulated that negative out-group ethnic stereotypes would be associated with the left side, and positive in-group stereotypes would be associated with the right side. Methods: The experiment consisted of two parts. First, we measured the spatial mapping of ethnic stereotypes by using a sensibility judgment task, in which participants had to decide whether a sentence was sensible or not by pressing either a left or a right key. The sentences included German vs. Arabic proper names. Second, we measured implicit ethnic stereotypes in the same participants using the Go/No-go Association Task (GNAT), in which Arabic vs. German proper names were presented in combination with positive vs. negative adjectives. Right-handed German native speakers (N = 92) participated in an online study. Results: As predicted, in the GNAT, participants reacted faster to German names combined with positive adjectives and to Arabic names combined with negative adjectives, which is diagnostic of existing valenced in-and outgroup ethnic stereotypes. However, we failed to find any reliable effects in the sensibility judgment task, i.e., there was no evidence of spatial mapping of positive and negative ethnic stereotypes. There was no correlation between the results of the two tasks at the individual level. Further Bayesian analysis and exploratory analysis in the left-handed subsample (N = 9) corroborated the evidence in favor of null results. Discussion: Our study suggests that ethnic stereotypes are not automatically mapped in a body-specific manner.
description: Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe; 828
Electromagnetic quantum waves and their effect on the low temperature magnetoacoustic response of a quasi-two-dimensional metal
Creators: name: Zimbovskaya, Natalya A.
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 theoretically analyze weakly attenuated electromagnetic waves in quasi-two-dimensional (Q2D) metals in high magnetic fields. Within the chosen geometry, the magnetic field is directed perpendicularly to the conducting layers of a Q2D conductor. We showed that longitudinal collective modes could propagate along the magnetic field provided that the Fermi surface is moderately corrugated. The considered waves speeds strongly depend on the magnetic field magnitude. Also, we analyzed interactions of these quantum waves with sound waves of fitting polarization and propagation direction, and we showed that such interaction may bring significant changes to the low temperature magnetoacoustic response of Q2D conductors.
description: 10 pages, 5 figures
New geldanamycin derivatives with anti Hsp properties by mutasynthesis
Creators: name: Hermane, Jekaterina
name: Eichner, Simone
name: Mancuso, Lena
name: Schröder, Benjamin
name: Sasse, Florenz
name: Zeilinger, Carsten
name: Kirschning, Andreas
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2019
Subjects: subject: Mutasynthetic supplementation
subject: S. hygroscopicus
subject: geldanamycin
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Mutasynthetic supplementation of the AHBA blocked mutant strain of S. hygroscopicus, the geldanamycin producer, with 21 aromatic and heteroaromatic amino acids provided new nonquinoid geldanamycin derivatives. Large scale (5 L) fermentation provided four new derivatives in sufficient quantity for full structural characterisation. Among these, the first thiophene derivative of reblastatin showed strong antiproliferative activity towards several human cancer cell lines. Additionally, inhibitory effects on human heat shock protein Hsp90α and bacterial heat shock protein from H. pylori HpHtpG were observed, revealing strong displacement properties for labelled ATP and demonstrating that the ATP-binding site of Hsps is the target site for the new geldanamycin derivatives.
Comparison of hot-electron transmission in ferromagnetic Ni on epitaxial and polycrystalline Schottky interfaces
Creators: name: Parui, S.
name: Rana, K. G.
name: Bignardi, L.
name: Rudolf, P.
name: van Wees, B. J.
name: Banerjee, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The hot-electron attenuation length in Ni is measured as a function of energy across two different Schottky interfaces viz. a polycrystalline Si(111)/Au and an epitaxial Si(111)/NiSi_2 interface using ballistic electron emission microscopy (BEEM). For similarly prepared Si(111) substrates and identical Ni thickness, the BEEM transmission is found to be lower for the polycrystalline interface than for the epitaxial interface. However, in both cases, the hot-electron attenuation length in Ni is found to be the same. This is elucidated by the temperature-independent inelastic scattering, transmission probabilities across the Schottky interface, and scattering at dissimilar interfaces.
description: 5 pages, 5 figures
title: Патогенетический анализ достоверности критериев классической триады стресса Г.Селье
Creators: name: Салехов, Саид
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: На основании фундаментальных положений доминанты А.А. Ухтомского, теории функциональных систем П.К. Анохина, эндогенизации патологических процессов был проведен анализ результатов влияния активации симпатоадреналовой системы на организменном уровне. Были обоснованы патогенетические особенности развития «Классической триады стресса» Г.Селье как единого процесса. Под воздействием стрессора происходит активация симпато-адреналовой системы, что приводит к гипертрофии коры надпочечников. На этом фоне развивается периферический спазм сосудов, вызывающий нарушение микроциркуляции и гипоксии тканей. В свою очередь развитие гипоксии приводит к нарушению трофики тканей, а железистая ткань эндокринных органов — одна из самых чувствительных к дефициту кислорода.