cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Predicting EDC mode of action from toxicogenomics data using EDTox
Creators: name: Arindam Ghosh
name: Amirhossein Sakhteman
name: Raghavendra Mysore
name: Niskanen, Einari
name: Darde, Thomas A
name: Daligaux, Pierre
name: Chesné, Christophe
name: Palvimo, Jorma J
name: Fortino, Vittorio
Publisher: name: F1000 Research Limited
Year: 2022

description: Endocrine disrupting chemicals (EDCs) are a class of chemicals that have the potential to alter the normal functioning of the endocrine system by mimicking, blocking, or interfering with the hormones of the system. Even though many of the potential effects of exposure to these compounds are well known, their precise mode of action (MoA) is still not predictable. EDTox offers an easy-to-use web interface (http://edtox.fi/) and standalone R-Shiny application for training classifiers for prioritization of chemicals based on their endocrine disruption potential and identification of the possible MoAs. EDTox utilizes known chemical-gene interactions together with toxicogenomic data driven gene networks to train a binary classifier. The use of generalised linear models (GLM) in EDTox provides a way for identification of the features that are responsible for distinguishing the EDCs from non-EDCs and can be used for predicting the possible MoAs of the EDCs. Currently, EDTox includes classifiers based on toxicogenomics data from Open TG-Gates, DrugMatrix and LINCS that can be used for compiling the ED probability scores for chemicals by entering the list of genes that interact with the chemical. Here, we use gene expression data from HepG2 and HepaRG cell lines exposed to EDCs to train new classifiers and identify their potential MoAs. In particular, we observed that the effects of EDCs are mediated through different pathways under different conditions and that they also vary between doses.
title: East Anglia: State of the historic environment 2021
Creators: name: Gill, David W J
Publisher: name: Centre for Heritage
Year: 2021

description: The report presents an analysis of data derived from the RSA Heritage Index (2020) for heritage in East Anglia (Norfolk and Suffolk). It presents the heritage rankings for local authorities in East Anglia, and then explores the main themes of the Index: Historic Built Environment; Museums, Archives and Artefacts; Industrial Heritage; Parks and Open Spaces; Landscapes and Natural Heritage; Culture and Memories. There are additional sections on Participation on Heritage, National Lottery Heritage Fund (NLHF) Grants, and Heritage and the Tourism Economy. Links to open source data are provided.
Coupled Nd and B' spin ordering in the double perovskites Nd2NaB'O6 (B' = Ru, Os)
Creators: name: Aczel, A. A.
name: Bugaris, D. E.
name: Yeon, J.
name: de la Cruz, C.
name: Loye, H. -C. zur
name: Nagler, S. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a neutron powder diffraction study of the monoclinic double perovskite systems Nd2NaB'O6 (B' = Ru, Os), with magnetic atoms occupying both the A and B' sites. Our measurements reveal coupled spin ordering between the Nd and B' atoms with magnetic transition temperatures of 14 K for Nd2NaRuO6 and 16 K for Nd2NaOsO6. There is a Type I antiferromagnetic structure associated with the Ru and Os sublattices, with the ferromagnetic planes stacked along the c-axis and [110] direction respectively, while the Nd sublattices exhibit complex, canted antiferromagnetism with different spin arrangements in each system.
description: 6 pages, 4 figures, 2 tables, Submitted to PRB
An IV estimator for a functional coefficient model with endogenous discrete treatments
Creators: name: Klein, Roger
name: Shen, Chan
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: We propose instrumental variables (IV) estimators for averaged conditional treatment effects and the parameters upon which they depend in the context of a semiparametric outcome model with endogenous discrete treatment variables. For this model, the treatment impacts are unknown functions of a vector of indices that depend on a finite dimensional parameter vector. We develop the theory for an estimator of these impacts when they are averaged over regions of interest. We prove identification, consistency and N-asymptotic normality of the estimators. We also show that they are efficient under correct model specification. Further, we show that they are robust to misspecification of the propensity score model. In the Monte Carlo study, the estimators perform well over a wide variety of designs covering both correct and incorrect propensity score model specification.
Project Olympus SAC 2022 Technical Report
Creators: name: Ali, Rahma
name: Bell, Spencer
Publisher: name: Stanford Digital Repository
Year: 2022
Subjects: subject: Rocket engines
subject: Avionics
subject: Sloshing (Hydrodynamics)
subject: Aerospace engineering
subject: Mechanical engineering
subject: FOS: Mechanical engineering
subject: Propulsion systems

description: This technical report details the design, testing, and manufacturing of a liquid bi-propellant sounding rocket by the Stanford Student Space Initiative for the 2022 Spaceport America Cup’s 30,000ft Hybrid/Liquid Category. The 5 inch diameter, 10 foot long launch vehicle is powered by an N-class nitrous oxide and kerosene pressure-fed liquid motor with a max. thrust of 350 lbf. Fiberglass structures house custom flight avionics with LoRa radio telemetry capabilities alongside custom parachutes with redundant deployment mechanisms for vehicle recovery. The vehicle will fly a payload studying micro-gravity slosh dynamics to inform future experiments to be performed aboard a Blue Origin launch.
Harmonically trapped Fermi gas: Temperature dependence of the Tan contact
Creators: name: Yan, Yangqian
name: Blume, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Ultracold atomic gases with short-range interactions are characterized by a number of universal species-independent relations. Many of these relations involve the two-body Tan contact. Employing the canonical ensemble, we determine the Tan contact for small harmonically trapped two-component Fermi gases at unitarity over a wide range of temperatures, including the zero and high temperature regimes. A cluster expansion that describes the properties of the N-particle system in terms of those of smaller subsystems is introduced and shown to provide an accurate description of the contact in the high temperature regime. Finite-range corrections are quantified and the role of the Fermi statistics is elucidated by comparing results for Fermi, Bose and Boltzmann statistics.
description: 5 figures (several subfigures)
title: Obiekt architektoniczny – dzieło sztuki w kontekście procesów postrzegania
Creators: name: Słuchocka, Katarzyna
Publisher: name: Publishing House of Poznan University of Technology
Year: 2023

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura Wnętrz, 14, 143-151
Supervised autonomy and its impact on Nigerian sports
Creators: name: Ogbah, Johnny-Precious
Publisher: name: Loughborough University
Year: 2023
Subjects: Sports science and exercise not elsewhere classified

description: Empirical research indicates that Nigerian sport is on the decline as citizen participation in sport for health and recreation is low, facilities are poor, and as evidenced in the last four Olympic Games, results are on a downward spiral. This study investigates the relationship between politics, governance and sport in the Nigerian context and examines how this relationship affects results and output and ultimately sporting success in Nigeria. It goes further to investigate whether supervised autonomy through increased government and courts intervention in the operations of sports governing bodies (SGBs) can promote sporting success in Nigeria. It employs a qualitative research methodology, with Nigerian SGBs as the case study. In the data collection stage, semi-structured interviews were conducted with sports lawyers, current and past sports administrators, athletes, sports journalists and other key stakeholders in sport. In the analysis stage, the study utilized the Thematic Analysis method, using Interpretative Phenomenological Analysis (IPA) in order to examine the personal lived experiences of the participants. This study found that corruption was a major reason behind the decline in Nigerian sport as funds released by government were not utilized by SGBs for the purposes for which they were released, thus leading to bad governance prevailing in many SGBs. It also found that giving SGBs full autonomy over their affairs was counterproductive as this allowed them to behave as they liked, thereby encouraging bad governance and ultimately having a negative effect on sport performance. The study also found that Supervised Autonomy through government and court supervision of SGBs would be likely to produce a system of checks and balances using Quasi Autonomous Non-Governmental Organisations (QUANGOs) which would encourage transparency, accountability and better productivity by the SGBs. This thesis has provided an empirical contribution to understanding the relationship between politics, governance and sport, the important role for good governance in delivering sporting success, and the effects of corruption in sports governance.
Spectral asymmetry of the massless Dirac operator on a 3-torus
Creators: name: Downes, Robert J.
name: Levitin, Michael
name: Vassiliev, Dmitri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35P20 (primary), 35J46, 35R01, 35Q41 (secondary)

description: Consider the massless Dirac operator on a 3-torus equipped with Euclidean metric and standard spin structure. It is known that the eigenvalues can be calculated explicitly: the spectrum is symmetric about zero and zero itself is a double eigenvalue. The aim of the paper is to develop a perturbation theory for the eigenvalue with smallest modulus with respect to perturbations of the metric. Here the application of perturbation techniques is hindered by the fact that eigenvalues of the massless Dirac operator have even multiplicity, which is a consequence of this operator commuting with the antilinear operator of charge conjugation (a peculiar feature of dimension 3). We derive an asymptotic formula for the eigenvalue with smallest modulus for arbitrary perturbations of the metric and present two particular families of Riemannian metrics for which the eigenvalue with smallest modulus can be evaluated explicitly. We also establish a relation between our asymptotic formula and the eta invariant.
description: 3 bibliographic references added and minor edits performed accounting for these references
Feed Value of Hog Wastes
Creators: name: Van Arsdall, Roy N.
name: Gamble, John C.
name: Van Arsdall, Roy N.
name: Gamble, John C.
Publisher: name: Unknown
Year: 1972
Subjects: Livestock Production/Industries
Production Economics

description: Excerpts from the report: Growing-finishing hogs digest about 85 percent of a corn-soybean meal ration. The remainder of the nutrients plus most of the minerals are excreted. Farmers have traditionally used these wastes for fertilizing cropland. Problems of odors and runoff, the relatively low cost of commercial fertilizers, and the increasing size of hog enterprises relative to holdings of cropland have now reduced the attractiveness of this practice. This report presents an evaluation of feeding aerobically digested hog wastes compared with other systems of storing and handling liquid wastes from hogs grown and finished in confinement. Confinement denotes a totally enclosed hog building with slotted floors and pit storage for the wastes. The feed replacement values of aerobically digested hog wastes were based on research in process and can only be termed “best estimates." Equipment for collecting, processing and feeding the material is in the experimental stage. Nevertheless, an economic analysis based on "best estimates" provides clues to the general magnitude of probable costs and benefits and strengthens the need for additional research.
The Stellar Masses of ~40,000 UV Selected Galaxies from the WiggleZ Survey at 0.3
Creators: name: Banerji, Manda
name: Glazebrook, Karl
name: Blake, Chris
name: Brough, Sarah
name: Colless, Matthew
name: Contreras, Carlos
name: Couch, Warrick
name: Croton, Darren J.
name: Croom, Scott
name: Davis, Tamara M.
name: Drinkwater, Michael J.
name: Forster, Karl
name: Gilbank, David
name: Gladders, Mike
name: Jelliffe, Ben
name: Jurek, Russell J.
name: Li, I-hui
name: Madore, Barry
name: Martin, D. Christopher
name: Pimbblet, Kevin
name: Poole, Gregory B.
name: Pracy, Michael
name: Sharp, Rob
name: Wisnioski, Emily
name: Woods, David
name: Wyder, Ted K.
name: Yee, H. K. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We characterise the stellar masses and star formation rates in a sample of almost 40000 spectroscopically confirmed UV luminous galaxies at 0.35sigma in the UKIDSS-LAS at all redshifts. An even more luminous subset of 15% are also detected in the WISE 3.4 and 4.6um bands. We compute stellar masses for this very large sample of extremely blue galaxies and quantify the sensitivity of the stellar mass estimates to various assumptions made during the SED fitting. The median stellar masses are log10(M*/M0)=9.6\pm0.7, 10.2\pm0.5 and 10.4\pm0.4 for the IR-undetected, UKIDSS detected and UKIDSS+WISE detected galaxies respectively. We demonstrate that the inclusion of NIR photometry can lead to tighter constraints on the stellar masses. The mass estimates are found to be most sensitive to the inclusion of secondary bursts of star formation as well as changes in the stellar population synthesis models, both of which can lead to median discrepancies of the order of 0.3dex in the stellar masses. We find that the best-fit M/LK is significantly lower (by ~0.4 dex) than that predicted by simple optical colour based estimators, in particular for the bluer galaxies with younger best-fit ages. The WiggleZ galaxies have star formation rates of 3-10 M0/yr and mostly lie at the upper end of the main sequence of star-forming galaxies at these redshifts. Their rest-frame UV luminosities and stellar masses are comparable to both local compact UV-luminous galaxies as well as Lyman break galaxies at z~2-3.(abridged)
description: 25 pages including two appendices, Accepted for publication in MNRAS
Can observed randomness be certified to be fully intrinsic?
Creators: name: Dhara, Chirag
name: de la Torre, Gonzalo
name: Acín, Antonio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Randomness comes in two qualitatively different forms. Apparent randomness can result both from ignorance or lack of control of degrees of freedom in the system. In contrast, intrinsic randomness should not be ascribable to any such cause. While classical systems only possess the first kind of randomness, quantum systems are believed to exhibit some intrinsic randomness. In general, any observed random process includes both forms of randomness. In this work, we provide quantum processes in which all the observed randomness is fully intrinsic. These results are derived under minimal assumptions: the validity of the no-signalling principle and an arbitrary (but not absolute) lack of freedom of choice. The observed randomness tends to a perfect random bit when increasing the number of parties, thus defining an explicit process attaining full randomness amplification.
description: 4 pages + appendices
Annealing induced colossal magnetocapacitance and colossal magnetoresistance in In-doped CdCr2S4
Creators: name: Xie, Y. M.
name: Yang, Z. R.
name: Li, L.
name: Yin, L. H.
name: Hu, X. B.
name: Huang, Y. L.
name: Jian, H. B.
name: Song, W. H.
name: Sun, Y. P.
name: Zhou, S. Q.
name: Zhang, Y. H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The correlation between colossal magnetocapacitance (CMC) and colossal magnetoresistance (CMR) in CdCr2S4 system has been revealed. The CMC is induced in polycrystalline Cd0.97In0.03Cr2S4 by annealing in cadmium vapor. At the same time, an insulator-metal transition and a concomitant CMR are observed near the Curie temperature. In contrast, after the same annealing treatment, CdCr2S4 displays a typical semiconductor behavior and does not show magnetic field dependent dielectric and electric transport properties. The simultaneous occurrence or absence of CMC and CMR effects implies that the CMC in the annealed Cd0.97In0.03Cr2S4 could be explained qualitatively by a combination of CMR and Maxwell-Wagner effect.
description: 14 pages, 3 figures
Strong correlation induced charge localization in antiferromagnets
Creators: name: Zhu, Zheng
name: Jiang, Hong-Chen
name: Qi, Yang
name: Tian, Chu-Shun
name: Weng, Zheng-Yu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The fate of an injected hole in a Mott antiferromagnet is an outstanding issue of strongly correlated physics. It provides important insights into doped Mott insulators closely related to high-temperature superconductivity in cuprates. Here, we report a systematic numerical study based on the density matrix renormalization group (DMRG). It reveals a remarkable novelty and surprise for the single hole's motion in otherwise well-understood Mott insulators. Specifically, we find that the charge of the hole is self-localized by a novel quantum interference mechanism purely of strong correlation origin, in contrast to Anderson localization due to disorders. The common belief of quasiparticle picture is invalidated by the charge localization concomitant with spin-charge separation: the spin of the doped hole is found to remain a mobile object. Our findings unveil a new paradigm for doped Mott insulators that emerges already in the simplest single hole case.
description: Main text 7 pages + Supplementary information 4 pages
EXPLORING THE INFLUENCE OF VIRTUAL LEARNING ENVIRONMENTS ON MATHEMATICS ACHIEVEMENT AND STUDENT ENGAGEMENT
Creators: name: Othmane, Rachid El-Khattabi
Publisher: name: hollex journal
Year: 2025
Subjects: Computer-assisted instruction, Digital classrooms, Educational innovation, Learner-centered learning, Mathematics education, Motivation

description: This paper presents the findings of a comprehensive experimental study examining the impact of computer-assisted instruction (CAI) compared to traditional teaching methods on learner performance and motivation in mathematics education. The study, conducted with 80 first-year college learners from a primary school in Morocco, aimed to assess the effectiveness of CAI in enhancing learning outcomes and promoting learner engagement.    Through pre- and post-intervention tests, the study evaluated mathematical Technology integration calculation abilities, while questionnaires were utilized to measure changes in learner motivation. The results revealed significant improvements in both mathematical performance and motivation within the experimental group following the CAI intervention. In contrast, minimal changes were observed in the control group receiving traditional instruction. These findings underscore the potential of CAI to not only improve academic achievement but also foster greater motivation among learners in mathematics education. The study contributes valuable insights to the ongoing discourse on technology integration in education, emphasizing the importance of Innovative instructional methodologies in optimizing learner learning
The Velocity Anisotropy of Distant Milky Way Halo Stars from Hubble Space Telescope Proper Motions
Creators: name: Deason, A. J.
name: Van der Marel, R. P.
name: Guhathakurta, P.
name: Sohn, S. T.
name: Brown, T. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Based on long baseline (5-7 years) multi-epoch HST/ACS photometry, used previously to measure the proper motion of M31, we present the proper motions (PMs) of 13 main-sequence Milky Way halo stars. The sample lies at an average distance of r ~24 kpc from the Galactic center, with a root-mean-square spread of 6 kpc. At this distance, the median PM accuracy is 5 km/s. We devise a maximum likelihood routine to determine the tangential velocity ellipsoid of the stellar halo. The velocity second moments in the directions of the Galactic (l,b) system are < vl^2 >^{1/2} = 123 (+29, -23) km/s, and < vb^2 >^{1/2} = 83 (+24, -16) km/s. We combine these results with the known line-of-sight second moment, < vlos^2 >^{1/2} = 105 \pm 5$ km/s, at this < r > to study the velocity anisotropy of the halo. We find approximate isotropy between the radial and tangential velocity distributions, with anisotropy parameter beta = 0.0 (+0.2, -0.4). Our results suggest that the stellar halo velocity anisotropy out to r ~ 30 kpc is less radially biased than solar neighborhood measurements. This is opposite to what is expected from violent relaxation, and may indicate the presence of a shell-type structure at r ~ 24 kpc. With additional multi-epoch HST data, the method presented here has the ability to measure the transverse kinematics of the halo for more stars, and to larger distances. This can yield new improved constraints on the stellar halo formation mechanism, and the mass of the Milky Way.
description: 11 pages, 8 figures. ApJ, in press. Press release with illustration available at http://hubblesite.org/newscenter/archive/releases/2013/07/
Nuclear $β^+$/EC decays in covariant density functional theory and the impact of isoscalar proton-neutron pairing
Creators: name: Niu, Z. M.
name: Niu, Y. F.
name: Liu, Q.
name: Liang, H. Z.
name: Guo, J. Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Self-consistent proton-neutron quasiparticle random phase approximation based on the spherical nonlinear point-coupling relativistic Hartree-Bogoliubov theory is established and used to investigate the $β^+$/EC-decay half-lives of neutron-deficient Ar, Ca, Ti, Fe, Ni, Zn, Cd, and Sn isotopes. The isoscalar proton-neutron pairing is found to play an important role in reducing the decay half-lives, which is consistent with the same mechanism in the $β$ decays of neutron-rich nuclei. The experimental $β^+$/EC-decay half-lives can be well reproduced by a universal isoscalar proton-neutron pairing strength.
description: 12 pages, 4 figures
Sexually transmitted diseases in cancer patients diagnosed under the age of 20 years – a national registry-based cohort study from Finland
Creators: name: Korhonen, Liisa
name: Madanat-Harjuoja, Laura
name: Hirvonen, Elli
name: Pitkäniemi, Janne
name: Malila, Nea
name: Taskinen, Mervi
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: Adolescents with chronic diseases are shown to be vulnerable for risky sexual behavior. Childhood cancer patients seem to engage in risky health behaviors as frequently as general population, but little is known about sexual issues in this group of patients. We characterized the risk for sexually transmitted diseases (STD) in a Finnish population-based cohort of over 6,000 childhood cancer patients diagnosed with cancer under the age of 20 years between 1971 and 2009, compared with over 30,000 age- and sex -matched population comparisons. The data were constructed through linkage between national cancer, population, infectious diseases, and hospital discharge registries. We estimated hazard ratios (HRs) with 95% confidence intervals (CIs) using Cox regression modeling with attained age as the underlying time scale. Childhood cancer patients had a decreased risk for having an infection with chlamydia, the most common STD in our cohort, when comparing with population comparisons (HR 0.77, 95% CI 0.69–0.86). The risk was lowest among male patients (HR 0.64, 95% CI 0.53–0.79) and patients with central nervous system (CNS) tumors (HR 0.46, 95% CI 0.33–0.63). The overall risk for cervical dysplasia was slightly increased among female cancer patients when compared with their population comparisons (HR 1.28, 95% CI 1.02–1.60). Greatest risk elevation was found among patients diagnosed with cancer in ages 10–14 years (HR 2.31, 95% CI 1.46–3.65) and patients with lymphoma (HR 1.95, 95% CI 1.20–3.16). The risk for all explored outcomes seemed to be decreased among patients with CNS tumors. Our findings highlight the importance of integrating sexual issues as a part of psychosocial support and having a systematic transition program in the follow-up care of childhood cancer patients.
Probing relaxation times in graphene quantum dots
Creators: name: Volk, Christian
name: Neumann, Christoph
name: Kazarski, Sebastian
name: Fringes, Stefan
name: Engels, Stephan
name: Haupt, Federica
name: Müller, André
name: Stampfer, Christoph
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphene quantum dots are attractive candidates for solid-state quantum bits. In fact, the predicted weak spin-orbit and hyperfine interaction promise spin qubits with long coherence times. Graphene quantum dot devices have been extensively investigated with respect to their excitation spectrum, spin-filling sequence, and electron-hole crossover. However their relaxation dynamics remain largely unexplored. This is mainly due to challenges in device fabrication, in particular regarding the control of carrier confinement and the tunability of the tunnelling barriers, both crucial to experimentally investigate decoherence times. Here, we report on pulsed-gate transient spectroscopy and relaxation time measurements of excited states in graphene quantum dots. This is achieved by an advanced device design, allowing to tune the tunnelling barriers individually down to the low MHz regime and to monitor their asymmetry with integrated charge sensors. Measuring the transient currents through electronic excited states, we estimate lower limit of charge relaxation times on the order of 60-100 ns.
description: To be published in Nature Communications. The first two authors contributed equally to this work. Main article: 10 pages, 4 figures. Supplementary information: 4 pages, 4 figures
Nonstandard Analysis: Its Creator and Place
Creators: name: Kutateladze, S. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 01A70, 03H05

description: This is a biographical sketch and tribute to Abraham Robinson (1918-1974) on the 95th anniversary of his birth with a short discussion of the place of nonstandard analysis in the present-day mathematics.
description: A part of a talk at the 22nd Summer St. Petersburg Meeting on Mathematical Analysis, June 26, 2013. Some typos are corrected
Non-conformal brane plane waves and entanglement entropy
Creators: name: Narayan, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Following [arXiv:1202.5935 [hep-th]] and [arXiv:1212.4328 [hep-th]], we study non-conformal brane plane wave backgrounds dual to strongly coupled gauge theories with constant energy flux and holographic entanglement entropy for strip subsystems in them. We find that for the strip direction along the direction of the energy flux, the finite cutoff-independent part of entanglement entropy can be estimated in terms of a dimensionless combination of the energy density and the strip dimensions, alongwith an effective scale-dependent number of degrees of freedom. For the strip orthogonal to the flux direction, there are indications of phase transitions. We also briefly discuss NS5-brane backgrounds corresponding to plane wave states in little string theories.
description: Latex, 10pgs
Is the Galactic Cosmic Ray Spectrum Constant in Time?
Creators: name: Eichler, David
name: Kumar, Rahul
name: Pohl, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The hypothesis is considered that the present Galactic cosmic ray spectrum is at present softer than its time average due to source intermittency. Measurements of muogenic nuclides underground could provide an independent measurement of the time averaged spectrum. Source intermittency could also account for the surprising low anisotropy reported by the IceCube collaboration. Predictions for Galactic emission of ultrahigh-energy quanta, such as UHE gamma rays and neutrinos, might be higher or lower than previously estimated.
description: submitted to ApJ
The inclusive decay b to ccs revisited
Creators: name: Krinner, Fabian
name: Lenz, Alexander
name: Rauh, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The inclusive decay rate b to ccs is enhanced considerably due to perturbative QCD corrections. We recalculate the dominant part of the NLO-QCD corrections, because they cannot be reconstructed from the literature and we give the full expressions in this paper. Further we include some previously neglected corrections originating from penguin diagrams. Combined with the impressive progress in the accurate determination of input parameters like charm quark mass, bottom quark mass and CKM parameters, this enables us to make a very precise prediction of the corresponding branching ratio Br (b to ccs) = (23 pm 2)%. This result is an essential ingredient for a model and even decay channel independent search for new physics effects in B decays.
description: 37 pages
The complex time behaviour of the microquasar GRS 1915+105 in the ρ-class observed with BeppoSAX. III: The hard X-ray delay and limit cycle mapping
Creators: name: Massa, F.
name: Massaro, E.
name: Mineo, T.
name: D'Aì, A.
name: Feroci, M.
name: Casella, P.
name: Belloni, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The microquasar GRS1915+105 was observed by BeppoSAX in October 2000 for about ten days while the source was in ρ-mode, which is characterized by a quasi-regular type I bursting activity. This paper presents a systematic analysis of the delay of the hard and soft X-ray emission at the burst peaks. The lag, also apparent from the comparison of the [1.7-3.4] keV light curves with those in the [6.8-10.2] keV range, is evaluated and studied as a function of time, spectral parameters, and flux. We apply the limit cycle mapping technique, using as independent variables the count rate and the mean photon rate. The results using this technique were also cross-checked using a more standard approach with the cross-correlation methods. Data are organized in runs, each relative to a continuous observation interval. The detected hard-soft delay changes in the course of the pointing from about 3 s to about 10 s and presents a clear correlation with the baseline count rate.
description: accepted for publication in A&A
Leading-Order Auxiliary Field Theory of the Bose-Hubbard Model
Creators: name: Dawson, John F.
name: Cooper, Fred
name: Chien, Chih-Chun
name: Mihaila, Bogdan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We discuss the phase diagram of the Bose-Hubbard (BH) model in the leading-order auxiliary field (LOAF) theory. LOAF is a conserving non-perturbative approximation that treats on equal footing the normal and anomalous density condensates. The mean-field solutions in LOAF correspond to first-order and second-order phase transition solutions with two critical temperatures corresponding to a vanishing Bose-Einstein condensate, $T_c$, and a vanishing diatom condensate, $T^\star$. The \emph{second-order} phase transition solution predicts the correct order of the transition in continuum Bose gases. For either solution, the superfluid state is tied to the presence of the diatom condensate related to the anomalous density in the system. In ultracold Bose atomic gases confined on a three-dimensional lattice, the critical temperature $T_c$ exhibits a quantum phase transition, where $T_c$ goes to zero at a finite coupling. The BH phase diagram in LOAF features a line of first-order transitions ending in a critical point beyond which the transition is second order while approaching the quantum phase transition. We identify a region where a diatom condensate is expected for temperatures higher than $T_c$ and less than $T_0$, the critical temperature of the non-interacting system. The LOAF phase diagram for the BH model compares qualitatively well with existing experimental data and results of \emph{ab initio} Monte Carlo simulations.
description: 10 pages, 6 figures
Complexity and simplicity of plasmas
Creators: name: Escande, Dominique
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This paper has two main parts. The first one presents a direct path from microscopic dynamics to Debye screening, Landau damping and collisional transport. It shows there is more simplicity in microscopic plasma physics than previously thought. The second part is more subjective. It describes some difficulties in facing plasma complexity in general, suggests an inquiry about the methods used empirically to tackle complex systems, discusses the teaching of plasma physics as a physics of complexity, and proposes new directions to face the inflation of information.
description: 13 pages
X-Ray Groups of Galaxies in the Aegis Deep and Wide Fields
Creators: name: Erfanianfar, G.
name: Finoguenov, A.
name: Tanaka, M.
name: Lerchster, M.
name: Nandra, K.
name: Laird, E.
name: Connelly, J. L.
name: Bielby, R.
name: Mirkazemi, M.
name: Faber, S. M.
name: Kocevski, D.
name: Cooper, M.
name: Newman, J. A.
name: Jeltema, T.
name: Coil, A. L.
name: Brimioulle, F.
name: Davis, M.
name: McCracken, H. J.
name: Willmer, C.
name: Gerke, B.
name: Cappelluti, N.
name: Gwyn, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a search for extended X-ray sources and their corresponding galaxy groups from 800-ks Chandra coverage of the All-wavelength Extended Groth Strip International Survey (AEGIS). This yields one of the largest X-ray selected galaxy group catalogs from a blind survey to date. The red-sequence technique and spectroscopic redshifts allow us to identify 100$%$ of reliable sources, leading to a catalog of 52 galaxy groups. The groups span the redshift range $z\sim0.066-1.544$ and virial mass range $M_{200}\sim1.34\times 10^{13}-1.33\times 10^{14}M_\odot$. For the 49 extended sources which lie within DEEP2 and DEEP3 Galaxy Redshift Survey coverage, we identify spectroscopic counterparts and determine velocity dispersions. We select member galaxies by applying different cuts along the line of sight or in projected spatial coordinates. A constant cut along the line of sight can cause a large scatter in scaling relations in low-mass or high-mass systems depending on the size of cut. A velocity dispersion based virial radius can more overestimate velocity dispersion in comparison to X-ray based virial radius for low mass systems. There is no significant difference between these two radial cuts for more massive systems. Independent of radial cut, overestimation of velocity dispersion can be created in case of existence of significant substructure and also compactness in X-ray emission which mostly occur in low mass systems. We also present a comparison between X-ray galaxy groups and optical galaxy groups detected using the Voronoi-Delaunay method (VDM) for DEEP2 data in this field.
description: Accepted for publication in APJ
On the non-equivalence of perfectly matched layers and exterior complex scaling
Creators: name: Scrinzi, A.
name: Stimming, H. P.
name: Mauser, N. J .
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The perfectly matched layers (PML) and exterior complex scaling (ECS) methods for absorbing boundary conditions are analyzed using spectral decomposition. Both methods are derived through analytical continuations from unitary to contractive transformations. We find that the methods are mathematically and numerically distinct: ECS is complex stretching that rotates the operator's spectrum into the complex plane, whereas PML is a complex gauge transform which shifts the spectrum. Consequently, the schemes differ in their time-stability. Numerical examples are given.
title: ÐÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÐºÑÑÑ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾ Ð¾ÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¼Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð¼Ñ ÑÐ·ÑÐºÑ. Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ° Ð¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐµÑ Ð½Ð¸ÐºÐ°. Ð§. 1
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
title: Practical course of learning a foreign language for specific purposes. Electric power engineering and electrical engineering
Creators: name: ÐÐ²Ð°Ð½Ð¾Ð²Ð°, Ð¢Ð°ÑÑÑÐ½Ð°
name: ÐÑÐµÐ¿ÐºÐ°Ñ, Ð¢Ð°ÑÑÑÐ½Ð°
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¸Ð¹ ÑÐ·ÑÐº
ÑÑÐµÐ±Ð½Ð¸ÐºÐ¸ Ð¸ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð´Ð»Ñ Ð²ÑÐ·Ð¾Ð²

description: Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¾ÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð½Ð° Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ðµ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ° Ð¿ÑÐ¸ Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾ Ð¾ÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð³Ð»Ð¸Ð¹ÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ°. Ð¦ÐµÐ»ÑÑ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸Ð½Ð¾ÑÐ·ÑÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¼ÑÐ½Ð¸ÐºÐ°ÑÐ¸Ð²Ð½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿ÐµÑÐµÐ½ÑÐ¸Ð¸, ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÐ¸ Ð¸Ð½Ð¾ÑÐ·ÑÑÐ½Ð¾Ð³Ð¾ Ð¾Ð±ÑÐµÐ½Ð¸Ñ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½ÑÑ, Ð´ÐµÐ»Ð¾Ð²ÑÑ Ð¸ Ð½Ð°ÑÑÐ½ÑÑ ÑÑÐµÑÐ°Ñ. ÐÐ°Ð¶Ð´ÑÐ¹ Ð¸Ð· ÑÐµÑÑÑÐµÑ ÑÐ°Ð·Ð´ÐµÐ»Ð¾Ð² ÑÑÐµÐ±Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ ÑÐ¾Ð´ÐµÑÐ¶Ð¸Ñ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¾ ÑÐµÐºÑÑÐ¾Ð² ÑÐ°Ð·Ð½Ð¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ ÑÐ»Ð¾Ð¶Ð½Ð¾ÑÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð¶Ð´Ð°ÑÑÑÑ Ð·Ð°Ð´Ð°Ð½Ð¸ÑÐ¼Ð¸, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐ¼Ð¸ Ð½Ð° Ð¿ÑÐ¾Ð²ÐµÑÐºÑ Ð¿Ð¾Ð½Ð¸Ð¼Ð°Ð½Ð¸Ñ Ð¸Ñ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ, ÑÐ°Ð±Ð¾ÑÑ Ð½Ð°Ð´ Ð¾Ð±ÑÐµÐ½Ð°ÑÑÐ½Ð¾Ð¹ Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ Ð»ÐµÐºÑÐ¸ÐºÐ¾Ð¹. Ð ÐºÐ°Ð¶Ð´ÑÐ¹ ÑÑÐ¾Ðº Ð²ÐºÐ»ÑÑÐµÐ½Ñ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð·Ð°Ð´Ð°Ð½Ð¸Ñ, Ð±Ð¾Ð»ÑÑÐ¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÑÐµÑÑÑ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð½Ð°Ð²ÑÐºÐ¾Ð² Ð³Ð¾Ð²Ð¾ÑÐµÐ½Ð¸Ñ, Ð°ÑÐ´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¿ÐµÑÐµÐ²Ð¾Ð´Ð°. Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ñ Ð²ÑÐ·Ð¾Ð², Ð¾Ð±ÑÑÐ°ÑÑÐ¸ÑÑÑ Ð¿Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ 13.03.02 Â«Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ° Ð¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐµÑÐ½Ð¸ÐºÐ°Â».
description: The training manual is aimed at achieving practical results in learning English for specific purposes. The goal of the manual is to develop the foreign language communicative competence, the ability of foreign language communication in professional, business, and scientific spheres. Each of the four sections in the training manual contains several texts of different levels of difficulty, accompanied by tasks aimed at checking comprehension, working on general scientific and professional vocabulary. Each lesson includes grammar exercises, and a lot of attention is paid to the development of speaking, listening, and translation skills. The training manual is intended for students of technical universities, studying in the major 13.03.02 âElectric power engineering and electrical engineeringâ.
Compared growth mechanisms of Zn-polar ZnO nanowires on O-polar ZnO and on sapphire
Creators: name: Perillat-Merceroz, Guillaume
name: Thierry, Robin
name: Jouneau, Pierre-Henri
name: Ferret, Pierre
name: Feuillet, Guy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Controlling the growth of zinc oxide nanowires is necessary to optimize the performances of nanowire-based devices such as photovoltaic solar cells, nano-generators, or light-emitting diodes. In this view, we investigate the nucleation and growth mechanisms of ZnO nanowires grown by metalorganic vapor phase epitaxy either on O-polar ZnO or on sapphire substrates. Whatever the substrate, ZnO nanowires are Zn-polar, as demonstrated by convergent beam electron diffraction. For growth on O-polar ZnO substrate, the nanowires are found to sit on O-polar pyramids. As growth proceeds, the inversion domain boundary moves up in order to remain at the top of the O-polar pyramids. For growth on sapphire substrates, the nanowires may also originate from the sapphire / ZnO interface. The presence of atomic steps and the non-polar character of sapphire could be the cause of the Zn-polar crystal nucleation on sapphire, whereas it is proposed that the segregation of aluminum impurities could account for the nucleation of inverted domains for growth on O-polar ZnO.
The Black Hole and Central Stellar Population of MCG--6-30-15
Creators: name: Raimundo, S. I.
name: Davies, R. I.
name: Gandhi, P.
name: Fabian, A. C.
name: Canning, R. E. A
name: Ivanov, V. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the first near-infrared integral field spectroscopy observations of the galaxy MCG--6-30-15. The H-band data studied in this paper cover the central 500 pc of the galaxy at the best resolution (0".1) so far. The spectra of the innermost regions are dominated by broad brackett series emission lines and non-stellar continuum, under which we are able to trace the distribution and kinematics of the stars and also the [Fe II] line emission. We find that there is a counter-rotating stellar core extending out to 125 pc, which appears to be associated with the [Fe II] emission. Based on the mass-to-light ratio, and the presence of this emission line, we estimate the age of the central stellar population to be of order of 65 Myr. We show that the gas needed to fuel the black hole is, at most, only 1 per cent of that needed to form these stars. We derive independent constraints on the black hole mass using the dynamical information and determine an upper limit for the black hole mass, Mbh < 6e7 Msun, that is consistent with other estimates.
description: 14 pages, 13 figures, accepted for publication in MNRAS
Das Data Stewardship als Teil der FDM-Gesamtstrategie (OVGU)
Creators: name: Strauch-Davey, Annette
Publisher: name: Zenodo
Year: 2022
Subjects: FDM
Forschungsdatenmanagement
RDM
Research Data Management

description: Das Data Stewardship als Teil der FDM-Gesamtstrategie (OVGU).
Topology Change and Tensor Forces for the EoS of Dense Baryonic Matter
Creators: name: Lee, Hyun Kyu
name: Rho, Mannque
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: When skyrmions representing nucleons are put on crystal lattice and compressed to simulate high density, there is a transition above the normal nuclear matter density $n_0$ from a matter consisting of skyrmions with integer baryon charge to a state of half-skyrmions with half-integer baryon charge. We exploit this observation in an effective field theory formalism to access dense baryonic system. We find that the topology change involved implies a changeover from a Fermi liquid structure to a non-Fermi liquid with the chiral condensate in the nucleon "melted off." The $\sim 80%$ of the nucleon mass that remains, invariant under chiral transformation, points to the origin of the (bulk of) proton mass that is not encoded in the standard mechanism of spontaneously broken chiral symmetry. The topology change engenders a drastic modification of the nuclear tensor forces, thereby nontrivially affecting the EoS, in particular, the symmetry energy, for compact star matter. It brings in stiffening of the EoS needed to accommodate a neutron star of $\sim 2$ solar mass. The strong effect on the EoS in general and in the tensor force structure in particular will also have impact on processes that could be measured at RIB-type accelerators.
description: 16 pages, 4 figures: Note dedicated to Gerry Brown, prepared for contribution to "EPJA Special Volume on Nuclear Symmetry Energy."
Global phase portraits of quadratic polynomial differential systems with a semi-elemental triple node
Creators: name: Artés, Joan C.
name: Rezende, Alex C.
name: Oliveira, Regilene D. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Planar quadratic differential systems occur in many areas of applied mathematics. Although more than one thousand papers have been written on these systems, a complete understanding of this family is still missing. Classical problems, and in particular, Hilbert's 16th problem, are still open for this family. In this article we make a global study of the family QTN of all real quadratic polynomial differential systems which have a semi-elemental triple node (triple node with exactly one zero eigenvalue). This family modulo the action of the affine group and time homotheties is three-dimensional and we give its bifurcation diagram with respect to a normal form, in the three-dimensional real space of the parameters of this form. This bifurcation diagram yields 28 phase portraits for systems in QTN counting phase portraits with and without limit cycles. Algebraic invariants are used to construct the bifurcation set. The phase portraits are represented on the Poincaré disk. The bifurcation set is not only algebraic due to the presence of a surface found numerically. All points in this surface correspond to connections of separatrices.
description: 22 pages, 15 figures