cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Superconducting transition temperature of Pb nanofilms: Impact of the thickness-dependent oscillations of the phonon mediated electron-electron coupling
Creators: name: Chen, Yajiang
name: shanenko, A. A.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: To date, several experimental groups reported measurements of the thickness dependence of T_c of atomically uniform single-crystalline Pb nanofilms. The reported amplitude of the T_c-oscillations varies significantly from one experiment to another. Here we propose that the reason for this unresolved issue is an interplay of the quantum-size variations in the single-electron density of states with thickness-dependent oscillations in the phonon mediated electron-electron coupling. Such oscillations in the coupling depend on the substrate material, the quality of the interface, the protection cover and other details of the fabrication process, changing from one experiment to another. This explains why the available data do not exhibit one-voice consistency about the amplitude of the T_c-oscillations. Our analyses are based on a numerical solution of the Bogoliubov-de Gennes equations for a superconducting slab.
An analysis of the influence of background subtraction and quenching on jet observables in heavy-ion collisions
Creators: name: Apolinário, Liliana
name: Armesto, Néstor
name: Cunqueiro, Leticia
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Subtraction of the large background in reconstruction is a key ingredient in jet studies in high-energy heavy-ion collisions at RHIC and the LHC. Here we address the question to which extent the most commonly used subtraction techniques are able to eliminate the effects of the background on the most commonly discussed observables at present: single inclusive jet distributions, dijet asymmetry and azimuthal distributions. We consider two different background subtraction methods, an area-based one implemented through the FastJet pack- age and a pedestal subtraction method, that resemble the ones used by the experimental collaborations at the LHC. We also analyze different ways of defining the optimal parame- ters in the second method. We use a toy model that easily allows variations of the background characteristics: average background level and fluctuations and azimuthal structure, but cross- checks are also done with a Monte Carlo simulator. Furthermore, we consider the influence of quenching using Q-PYTHIA on the dijet observables with the different background subtrac- tion methods and, additionally, we examine the missing momentum of particles. The average background level and fluctuations affect both single inclusive spectra and dijet asymmetries, although differently for different subtraction setups. A large azimuthal modulation of the background has a visible effect on the azimuthal dijet distributions. Quenching, as imple- mented in Q-PYTHIA, substantially affects the dijet asymmetry but little the azimuthal dijet distributions. Besides, the missing momentum characteristics observed in the experiment are qualitatively reproduced by Q-PYTHIA.
description: 29 pages, 43 figures Accepted by JHEP
Автоматический прибор для регенерации гальванических элементов и батарей и зарядки маломощных аккумуляторов
Creators: name: Любимов В.В., Халезов А.А.
Publisher: name: Zenodo
Year: 1985
Subjects: Гальванические элементы, батареи, регенерация гальванических элементов

description: В работе (в предложении) дано описание конструкции и схемы автоматического электронного прибора, который предназначен для регенерации гальванических элементов и маломощных батарей. Это устройство нашло свое применение как в лабораторных, так и в экспедиционных условиях где использование элементов питания приборов лимитировано их емкостью. На данное рационализаторское предложение получено официальное Удостоверение зарегистрированное в Патентном отделе ИЗМИРАН СССР 26.04.1985 г. под №25/265.
Interaction effects and transport properties of Pt capped Co nanoparticles
Creators: name: Ludwig, A.
name: Agudo, L.
name: Eggeler, G.
name: Ludwig, A.
name: Wieck, A. D.
name: Petracic, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied the magnetic and transport properties of Co nanoparticles (NPs) being capped with varying amounts of Pt. Beside field and temperature dependent magnetization measurements we performed delta-M measurements to study the magnetic interactions between the Co NPs. We observe a transition from demagnetizing towards magnetizing interactions between the particles for an increasing amount of Pt capping. Resistivity measurements show a crossover from giant magnetoresistance towards anisotropic magnetoresistance.
Additional file 2 of Addressing conflicts of interest regarding the vaccine in infectious disease outbreaks based on good governance for health approach: a policy brief
Creators: name: Soleimani, Nazanin
name: Ghoshouni, Hamed
name: Mostafavi, Hakimeh
name: Modiri, Mohammad Hossein
name: Attar, Mohammad Hasan Movahedian
name: Mousavi, Seyed Masood
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Science Policy
Computational Biology

description: Additional file 2: Appendix 2. PRISMA flow diagram.
Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic Center
Creators: name: Eckart, A.
name: Muzic, K.
name: Yazici, S.
name: Shahzamanian, B.
name: Witzel, G.
name: Sabha, N.
name: Moser, L.
name: Garcia-Marin, M.
name: Valencia-S., M.
name: Jalali, B.
name: Bremer, M.
name: Straubmeier, C.
name: Kunneriath, D.
name: Moultaka, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: There are a number of faint compact infrared excess sources in the central stellar cluster of the Milky Way. Their nature and origin is unclear. In addition to several isolated objects of this kind we find a small but dense cluster of co-moving sources (IRS13N) about 3" west of SgrA* just 0.5" north of the bright IRS13E cluster of WR and O-type stars. Based on their color and brightness, there are two main possibilities: (1) they may be dust embedded stars older than few Myr, or (2) extremely young, dusty stars with ages less than 1Myr. We present fist H- and Ks-band identifications or proper motions of the IRS13N members, the high velocity dusty S-cluster object (DSO), and other infrared excess sources in the central field. We also present results of NIR H- and Ks-band ESO-SINFONI integral field spectroscopy of ISR13N. We show that within the uncertainties, the proper motions of the IRS13N sources in Ks- and L'-band are identical. This indicates that the bright L'-band IRS13N sources are indeed dust enshrouded stars rather than core-less dust clouds. The proper motions show that the IRS13N sources are not strongly gravitationally bound to each other implying that they have been formed recently. We also present a first H- and Ks-band identification as well as proper motions and HKsL'-colors of a fast moving DSO which was recently found in the cluster of high speed S-stars that surround the super-massive black hole Sagittarius A* (SgrA*). Most of the compact L'-band excess emission sources have a compact H- or Ks-band counterpart and therefore are likely stars with dust shells or disks. Our new results and orbital analysis from our previous work favor the hypothesis that the infrared excess IRS13N members and other dusty sources close to SgrA* are very young dusty stars and that star formation at the GC is a continuously ongoing process.
description: 20 pages, 18 figures, 4 tables plus appendix with 16 figures and 3 tables accepted by A&A
Additional file 1 of Addressing conflicts of interest regarding the vaccine in infectious disease outbreaks based on good governance for health approach: a policy brief
Creators: name: Soleimani, Nazanin
name: Ghoshouni, Hamed
name: Mostafavi, Hakimeh
name: Modiri, Mohammad Hossein
name: Attar, Mohammad Hasan Movahedian
name: Mousavi, Seyed Masood
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Science Policy
Computational Biology

description: Additional file 1: Appendix 1. Search strategy.
Effective generic super-exponential stability of elliptic fixed points for symplectic vector fields
Creators: name: Niederman, Laurent
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37J25, 37J40, 70H09

description: We consider linearly stable elliptic fixed points for a symplectic vector field and prove generic results of super-exponential stability for nearby solutions. Morbidelli and Giorgilli have proved a theorem of stability over super-exponentially long times if one consider an analytic lagrangian torus, invariant for an analytic hamiltonian system, with a diophantine translation vector which admit a sign definite torsion. Then, the solutions of the system move very little over times which are super-exponentially long with respect to the inverse of the distance to the invariant torus. The proof is in two steps: first the construction of a Birkhoff normal form at a high order, then the application of Nekhoroshev theory. Bounemoura has shown that the second step of this construction remains valid if the Birkhoff normal form linked to an elliptic fixed point belongs to a generic set among the formal series. To obtain a complete result, we also have to establish that most strongly non resonant elliptic fixed point in a Hamiltonian system admit a Birkhoff normal form in the set introduced by Bounemoura. We show here that this property is satisfied generically in the sense of the measure (prevalence) through infinite-dimensional probe spaces (that is an infinite number of parameter chosen at random) with methods similar to those developed in a paper of Gorodetski, Kaloshin and Hunt.
description: Announcement of results
CRASH3: cosmological radiative transfer through metals
Creators: name: Graziani, L.
name: Maselli, A.
name: Ciardi, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Here we introduce CRASH3, the latest release of the 3D radiative transfer code CRASH. In its current implementation CRASH3 integrates into the reference algorithm the code Cloudy to evaluate the ionisation states of metals, self-consistently with the radiative transfer through H and He. The feedback of the heavy elements on the calculation of the gas temperature is also taken into account, making of CRASH3 the first 3D code for cosmological applications which treats self-consistently the radiative transfer through an inhomogeneous distribution of metal enriched gas with an arbitrary number of point sources and/or a background radiation. The code has been tested in idealized configurations, as well as in a more realistic case of multiple sources embedded in a polluted cosmic web. Through these validation tests the new method has been proven to be numerically stable and convergent. We have studied the dependence of the results on a number of physical quantities such as the source characteristics (spectral range and shape, intensity), the metal composition, the gas number density and metallicity.
description: accepted for publication in MNRAS
On gravitational interactions for massive higher spins in $AdS_3$
Creators: name: Buchbinder, I. L.
name: Snegirev, T. V.
name: Zinoviev, Yu. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we investigate gravitational interactions of massive higher spin fields in three dimensional $AdS$ space with arbitrary value of cosmological constant including flat Minkowski space. We use frame-like gauge description for such massive fields adopted to three-dimensional case. At first, we carefully analyze the procedure of switching on gravitational interactions in the linear approximation on the example of massive spin-3 field and then proceed with the generalization to the case of arbitrary integer spin field. As a result we construct a cubic interaction vertex linear in spin-2 field and quadratic in higher spin field on $AdS_3$ background. As in the massless case the vertex does not contain any higher derivative corrections to the Lagrangian and/or gauge transformations. Thus, even after switching on gravitational interactions, one can freely consider any massless or partially massless limits as well as the flat one.
description: 21 pages. Some clarifications and 1 new reference added. Version to appear in the J.Phys.A special volume on "Higher Spin Theories and AdS/CFT" edited by Matthias Gaberdiel and Mikhail Vasiliev
Lower bounds on the Hausdorff measure of nodal sets II
Creators: name: Sogge, Christopher D.
name: Zelditch, Steve
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58J50 (Primary) 28A78 35P15 35R01 (Secondary)

description: We give a very short argument showing how the main identity from our earlier paper (Sogge and Zelditch, 2011) immediately leads to the best lower bound currently known (Colding and Minicozzi II, 2011) for the Hausdorff measure of nodal sets in dimensions $n\ge 3$.
description: Change of title and other revisions. 4 pages
The Theory of Pseudoknots
Creators: name: Henrich, Allison
name: Hoberg, Rebecca
name: Jablan, Slavik
name: Johnson, Lee
name: Minten, Elizabeth
name: Radovic, Ljiljana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27

description: Classical knots in $\mathbb{R}^3$ can be represented by diagrams in the plane. These diagrams are formed by curves with a finite number of transverse crossings, where each crossing is decorated to indicate which strand of the knot passes over at that point. A pseudodiagram is a knot diagram that may be missing crossing information at some of its crossings. At these crossings, it is undetermined which strand passes over. Pseudodiagrams were first introduced by Ryo Hanaki in 2010. Here, we introduce the notion of a pseudoknot, i.e. an equivalence class of pseudodiagrams under an appropriate choice of Reidemeister moves. In order to begin a classification of pseudoknots, we introduce the concept of a weighted resolution set, an invariant of pseudoknots. We compute the weighted resolution set for several pseudoknot families and discuss notions of crossing number, homotopy, and chirality for pseudoknots.
description: 15 pages, 14 figures. In v.2, we corrected an error in Figure 2 of v.1
N-quantum calculation of the hydrogen atom with one-photon exchange
Creators: name: Greenberg, O. W.
name: Cowen, Steve
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The N-quantum approach (NQA) to quantum field theory uses the complete and irreducible set of in or out fields, including in or out fields for bound states, as standard building blocks to construct solutions to quantum field theories. In particular, introducing in (or out) fields for the bound states allows a new way to calculate energy levels and wave functions for the bound states that is both covariant and effectively 3-dimensional. This method is independent of the Bethe-Salpeter equation. In contrast to the Bethe-Salpeter equation, all solutions of the NQA are normalizable and correspond to physical bound states. In this paper we use the NQA in one-loop approximation to calculate states of the relativistic hydrogen atom and analogous two-body systems to illustrate how our new method works. With additional terms in the in field expansion we find systematic corrections beyond the Coulomb interaction.
description: 25 pages, 4 figures. Updated to include discussion of higher-order corrections and added references
GHZ paradoxes based on an even number of qubits
Creators: name: Waegell, Mordecai
name: Aravind, P. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: GHZ paradoxes are presented for all even numbers of qubits from four up. They are obtained from proofs of the Kochen-Specker (KS) theorem by showing how the assumption of noncontextuality can be justified on the basis of locality. The nature of the entangled states involved in our paradoxes is discussed. Some multiqubit proofs of the KS theorem are also presented in the form of diagrams from which they are visually obvious. The implications of our results are discussed.
description: Caption to Fig.1 has been expanded, as have explanatory footnotes in Refs.13 and 14, in response to reviewer comments
The thick disk rotation-metallicity correlation as a fossil of an "inverse chemical gradient" in the early Galaxy
Creators: name: Curir, Anna
name: Lattanzi, Mario G.
name: Spagna, Alessandro
name: Matteucci, Francesca
name: Murante, Giuseppe
name: Fiorentin, Paola Re
name: Spitoni, Emanuele
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The thick disk rotation--metallicity correlation, \partial V_ϕ/\partial[Fe/H] =40÷50 km s^{-1}dex^{-1} represents an important signature of the formation processes of the galactic disk. We use nondissipative numerical simulations to follow the evolution of a Milky Way (MW)-like disk to verify if secular dynamical processes can account for this correlation in the old thick disk stellar population. We followed the evolution of an ancient disk population represented by 10 million particles whose chemical abundances were assigned by assuming a cosmologically plausible radial metallicity gradient with lower metallicity in the inner regions, as expected for the 10-Gyr-old MW. Essentially, inner disk stars move towards the outer regions and populate layers located at higher |z|. A rotation--metallicity correlation appears, which well resembles the behaviour observed in our Galaxy at a galactocentric distance between 8 kpc and 10 kpc. In particular,we measure a correlation of \partial V_ϕ/\partial[Fe/H]\simeq 60 km s^{-1}dex^{-1} for particles at 1.5 kpc < |z| < 2.0 kpc that persists up to 6 Gyr. Our pure N-body models can account for the V_ϕvs. [Fe/H] correlation observed in the thick disk of our Galaxy, suggesting that processes internal to the disk such as heating and radial migration play a role in the formation of this old stellar component. In this scenario, the positive rotation-metallicity correlation of the old thick disk population would represent the relic signature of an ancient "inverse" chemical (radial) gradient in the inner Galaxy, which resulted from accretion of primordial gas.
description: Accepted for publication on Astronomy and Astrophysics
Additional file 2 of Promoter hypermethylation of neural-related genes is compatible with stemness in solid cancers
Creators: name: Idris, Musa
name: Coussement, Louis
name: Alves, Maria M.
name: De Meyer, Tim
name: Melotte, Veerle
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S1. Enrichment for neural genes in hyper- and hypomethylated genes in CpG islands in solid cancers. Table S2. Pathways and GO term enrichment of hypermethylated genes over all solid cancer types. Table S3. Cross tables for hypermethylated (HMG) and non-hypermethylated (non-HMG) genes in COAD, considering bivalency and/or neural (GO) annotation. Table S4. Odds ratios of genes getting hypermethylated during cancer. Table S5. Ingenuity Pathway Analysis output on hypermethylated neural-related genes in COAD. Figure S1. Enrichment of neural terms in hypermethylated genes in cancer. Figure S2. Percentage of neural-related hyper- and hypomethylated genes in their promoter CpG islands in different solid cancers. Figure S3. Dotplot of the average methylation per sample in function of sample purity in COAD. Figure S4. Methylation levels of neural-related genes reflects overall methylation levels in COAD. Figure S5. Venn diagram for COAD HMGs, neural-related genes, and ESCs-derived bivalent genes.
Investigating superconductivity in neutron star interiors with glitch models
Creators: name: Haskell, Brynmor
name: Pizzochero, Pierre M.
name: Seveso, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The high density interior of a neutron star is expected to contain superconducting protons and superfluid neutrons. Theoretical estimates suggest that the protons will form a type II superconductor in which the stellar magnetic field is carried by flux tubes. The strong interaction between the flux tubes and the neutron rotational vortices could lead to strong 'pinning', i.e. vortex motion could be impeded. This has important implications especially for pulsar glitch models as it would lead to a large part of the vorticity of the star being decoupled from the 'normal' component, to which the electromagnetic emission is locked. In this paper we explore the consequences of strong pinning in the core on the 'snowplow' model for pulsar glitches (Pizzochero 2011), making use of realistic equations of state and relativistic background models for the neutron star. We find that in general a large fraction of pinned vorticity in the core is not compatible with observations of giant glitches in the Vela pulsar. The conclusion is thus that either most of the core is in a type I superconducting state or that the interaction between vortices and flux tubes is weaker than previously assumed.
Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields
Creators: name: Wu, Fan
name: Guo, Guang-Can
name: Zhang, Wei
name: Yi, Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the phase diagram of a two-dimensional ultracold Fermi gas with the synthetic spin-orbit coupling (SOC) that has recently been realized at NIST. Due to the coexistence of anisotropic SOC and effective Zeeman fields in the NIST scheme, the system shows rich structure of phase separation involving exotic gapless superfluid and Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) pairing states with different center-of-mass momentum. In particular, we characterize the stability region of FFLO states and demonstrate their unique features under SOC. We then show that the effective transverse Zeeman field in the NIST scheme can qualitatively change the landscape of the thermodynamic potential which leads to intriguing effects such as the disappearance of pairing instability, the competition between different FFLO states, and the stabilization of a fully gapped FFLO state. These interesting features may be probed for example by measuring the in-situ density profiles or by the momentum-resolved radio-frequency spectroscopy.
description: 7 pages, 6 figures. with updated figures and discussions
Proof of Brlek-Reutenauer conjecture
Creators: name: Balkova, Lubomira
name: Pelantova, Edita
name: Starosta, Stepan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 68R15

description: Brlek and Reutenauer conjectured that any infinite word u with language closed under reversal satisfies the equality 2D(u) = \sum_{n=0}^{\infty}T_u(n) in which D(u) denotes the defect of u and T_u(n) denotes C_u(n+1)-C_u(n) +2 - P_U(n+1) - P_u(n), where C_u and P_u are the factor and palindromic complexity of u, respectively. This conjecture was verified for periodic words by Brlek and Reutenauer themselves. Using their results for periodic words, we have recently proved the conjecture for uniformly recurrent words. In the present article we prove the conjecture in its general version by a new method without exploiting the result for periodic words.
description: 9 pages
Site-Selective Field Emission Source by Femtosecond Laser Pulses and Its Emission Mechanism
Creators: name: Yanagisawa, Hirofumi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experimental and theoretical investigations on asymmetric field emission induced by weak femtosecond laser pulses and also its emission mechanisms are briefly reviewed. The emission mechanisms are discussed further for a wider range of DC fields and laser power. It appears that firstly photo-assisted field emission from lower-excitation order grows in the higher DC fields and secondly our simulations can be applied only for lower laser power.
description: 8 pages, 9 figures, Submitted to special issue of Annalen der Physik. arXiv admin note: text overlap with arXiv:1103.4310
Classical and SUSY solutions of the Boiti-Leon-Manna-Pempinelli equation
Creators: name: Delisle, Laurent
name: Mosaddeghi, Masoud
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we propose the study of the Boiti-Leon-Manna-Pempinelli equation from two point of views: the classical and supersymmetric cases. In the classical case, we construct new solutions of this equation from Wronskian formalism and Hirota method. We, then, introduce a N = 1 supersymmetric extension of the Boiti-Leon-Manna-Pempinelli equation. We thus produce a bilinear form and give multisolitons and superpartner solutions. As an application, we produce a pair of Bäcklund transformations.
description: 11 pages, 6 figures
Frequency Resolved Optical Gating for Time-Resolving Intra-Atomic Knock-Out in Double Ionization with Attosecond Pulses
Creators: name: Price, H.
name: Staudte, A.
name: Corkum, P. B.
name: Emmanouilidou, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We develop the two-electron attosecond streak camera under realistic conditions using a quasi-classical model. We assume extreme ultra-violet (XUV) attosecond pulses with a full width at half maximum (FWHM) of 24 attoseconds, centered at 120 eV and a streaking infrared laser field of 1600 nm, and intensity of $1.8 \times 10^{12}$ W/cm$^2$. The proposed method is shown to be capable to time resolve intra-atomic collisions in double ionization.
description: 5 pages, 6 figures
The UV/optical spectra of the Type Ia supernova SN 2010jn: a bright supernova with outer layers rich in iron-group elements
Creators: name: Hachinger, S.
name: Mazzali, P. A.
name: Sullivan, M.
name: Ellis, R.
name: Maguire, K.
name: Gal-Yam, A.
name: Howell, D. A.
name: Nugent, P. E.
name: Baron, E.
name: Cooke, J.
name: Arcavi, I.
name: Bersier, D.
name: Dilday, B.
name: James, P. A.
name: Kasliwal, M. M.
name: Kulkarni, S. R.
name: Ofek, E. O.
name: Laher, R. R.
name: Parrent, J.
name: Surace, J.
name: Yaron, O.
name: Walker, E. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Radiative transfer studies of Type Ia supernovae (SNe Ia) hold the promise of constraining both the time-dependent density profile of the SN ejecta and its stratification by element abundance which, in turn, may discriminate between different explosion mechanisms and progenitor classes. Here we present a detailed analysis of Hubble Space Telescope ultraviolet (UV) and ground-based optical spectra and light curves of the SN Ia SN 2010jn (PTF10ygu). SN 2010jn was discovered by the Palomar Transient Factory (PTF) 15 days before maximum light, allowing us to secure a time-series of four UV spectra at epochs from -11 to +5 days relative to B-band maximum. The photospheric UV spectra are excellent diagnostics of the iron-group abundances in the outer layers of the ejecta, particularly those at very early times. Using the method of 'Abundance Tomography' we have derived iron-group abundances in SN 2010jn with a precision better than in any previously studied SN Ia. Optimum fits to the data can be obtained if burned material is present even at high velocities, including significant mass fractions of iron-group elements. This is consistent with the slow decline rate (or high 'stretch') of the light curve of SN 2010jn, and consistent with the results of delayed-detonation models. Early-phase UV spectra and detailed time-dependent series of further SNe Ia offer a promising probe of the nature of the SN Ia mechanism.
description: 17 pages, 9 figures (v3: several small updates to content including models; v2: metadata fixed), MNRAS, in press
Axion electrodynamics and dark matter fingerprints in the terrestrial magnetic and electric fields
Creators: name: Balakin, A. B.
name: Grunskaya, L. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider mathematical aspects of the axion electrodynamics in application to the problem of evolution of geomagnetic and terrestrial electric fields, which are coupled by relic axions born in the early Universe and (hypothetically) forming now the cold dark matter. We find axionic analogs of the Debye potentials, well-known in the standard Faraday - Maxwell electrodynamics, and discuss exact solutions to the equations of the axion electrodynamics describing the state of axionically coupled electric and magnetic fields in a spherical resonator Earth-Ionosphere. We focus on the properties of the specific electric and magnetic oscillations, which appeared as a result of the axion-photon coupling in the dark matter environment. We indicate such electric and magnetic field configurations as longitudinal electro-magnetic clusters.
description: 26 pages, accepted for publication in the journal Reports on Mathematical Physics
Additional file 1 of Serum branch-chained amino acids are increased in type 2 diabetes and associated with atherosclerotic cardiovascular disease
Creators: name: Moreno-Vedia, Juan
name: Llop, Dídac
name: Rodríguez-Calvo, Ricardo
name: Plana, Núria
name: Amigó, Núria
name: Rosales, Roser
name: Esteban, Yaiza
name: Girona, Josefa
name: Masana, Lluís
name: Ibarretxe, Daiana
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Additional file 1: Table S1. Plasma values of the NMR-measured LMWM of the cohort grouped by the presence or absence of T2D.
The Fragmentation of Magnetized, Massive Star-Forming Cores with Radiative Feedback
Creators: name: Myers, Andrew T.
name: McKee, Christopher F.
name: Cunningham, Andrew J.
name: Klein, Richard I.
name: Krumholz, Mark R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a set of 3-dimensional, radiation-magnetohydrodynamic calculations of the gravitational collapse of massive (300 Msun), star-forming molecular cloud cores. We show that the combined effects of magnetic fields and radiative feedback strongly suppress core fragmentation, leading to the production of single star systems rather than small clusters. We find that the two processes are efficient at suppressing fragmentation in different regimes, with the feedback most effective in the dense, central region and the magnetic field most effective in more diffuse, outer regions. Thus, the combination of the two is much more effective at suppressing fragmentation than either one considered in isolation. Our work suggests that typical massive cores, which have mass-to-flux ratios of about 2 relative to critical, likely form a single star system, but that cores with weaker fields may form a small star cluster. This result helps us understand why the observed relationship between the core mass function and the stellar initial mass function holds even for ~100 Msun cores with many thermal Jeans masses of material. We also demonstrate that a ~40 AU Keplerian disk is able to form in our simulations, despite the braking effect caused by the strong magnetic field.
description: 20 pages, 10 figures, accepted to ApJ. Discussion revised in sections 2, 3, and 4, and a new figure included in section 4. Conclusions unchanged
Unfolding of event-by-event net-charge distributions in heavy-ion collision
Creators: name: Garg, P.
name: Mishra, D. K.
name: Netrakanti, P. K.
name: Mohanty, A. K.
name: Mohanty, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss a method to obtain the true event-by-event net-charge multiplicity distributions from a corresponding measured distribution which is subjected to detector effects such as finite particle counting efficiency. The approach is based on the Bayes method for unfolding of distributions. We are able to faithfully unfold back the measured distributions to match with their corresponding true distributions obtained for a widely varying underlying particle production mechanism, beam energy and collision centrality. Particularly the mean, variance, skewness, kurtosis, their products and ratios of net-charge distributions from the event generators are shown to be successfully unfolded from the measured distributions constructed to mimic a real experimental distribution. We demonstrate the necessity to account for detector effects before associating the higher moments of net-charge distributions with physical quantities or phenomena. The advantage of this approach being that one need not construct new observable to cancel out detector effects which loose their ability to be connected to physical quantities calculable in standard theories.
Additional file 1 of A structured approach to applying systems analysis methods for examining implementation mechanisms
Creators: name: Kim, Bo
name: Cruden, Gracelyn
name: Crable, Erika L.
name: Quanbeck, Andrew
name: Mittman, Brian S.
name: Wagner, Anjuli D.
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Computational Biology

description: Additional file 1. STROBE Statement—checklist of items that should be included in reports of observational studies.
Titelei
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 86 Nr. 2 (2008)
Ein Ontologie-Entwurf für die Klassifikation von historischen Wasserzeichen
Creators: name: Eichenberger, Nicole
Publisher: name: Informationspraxis
Year: 2019

description: Die Klassifikation von historischen Wasserzeichen spielt sowohl für die kodikologische Forschung als auch für Bibliotheken und Archive als datenverwaltende Institutionen eine zentrale Rolle. Die existierenden Wasserzeichen-Datenbanken arbeiten mit hierarchischen Klassifikationssystematiken, die der Komplexität des historischen Materials oft nicht gerecht werden. Aus diesem Grund wird im vorliegenden Beitrag ein Entwurf einer Wasserzeichenklassifikation in der flexibleren Form der Ontologie präsentiert. Dieser erlaubt nicht nur eine differenziertere Erfassung von und Suche nach Wasserzeichen, sondern kann perspektivisch auch in andere Portale integriert und für Digital Humanities-Forschungsszenarien nachgenutzt werden.

The classification of historical watermarks is an important issue for codicological research as well as for libraries and archives providing the data. The existing watermark databases work with hierarchical classification systems, which often do not meet the complexity of the historical material. For this reason, this contribution presents a draft of an ontology, which is a more flexible classification system that allows for modelling and searching the data in a more differentiated way. Furthermore, the ontology can be integrated into other portals and be reused by other digital humanities‘ research projects.
description: Informationspraxis, Bd. 5 Nr. 1 (2019)
7 Hügelgräber bei Hof Ramelsen, Gem. Weitzmühlen, Kr. Verden (Aller)
Creators: name: Schünemann, Detlef
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 33 (1964): Nachrichten aus Niedersachsens Urgeschichte
Spätlatènezeitliche Siedlungsfunde bei Hollenstedt, Kr. Einbeck
Creators: name: Plümer, Erich
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 33 (1964): Nachrichten aus Niedersachsens Urgeschichte
Genons, twist defects, and projective non-Abelian braiding statistics
Creators: name: Barkeshli, Maissam
name: Jian, Chao-Ming
name: Qi, Xiao-Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has recently been realized that a general class of non-abelian defects can be created in conventional topological states by introducing extrinsic defects, such as lattice dislocations or superconductor-ferromagnet domain walls in conventional quantum Hall states or topological insulators. In this paper, we begin by placing these defects within the broader conceptual scheme of extrinsic twist defects associated with symmetries of the topological state. We explicitly study several classes of examples, including $Z_2$ and $Z_3$ twist defects, where the topological state with N twist defects can be mapped to a topological state without twist defects on a genus $g \propto N$ surface. To emphasize this connection we refer to the twist defects as genons. We develop methods to compute the projective non-abelian braiding statistics of the genons, and we find the braiding is given by adiabatic modular transformations, or Dehn twists, of the topological state on the effective genus g surface. We study the relation between this projective braiding statistics and the ordinary non-abelian braiding statistics obtained when the genons become deconfined, finite-energy excitations. We find that the braiding is generally different, in contrast to the Majorana case, which opens the possibility for fundamentally novel behavior. We find situations where the genons have quantum dimension 2 and can be used for universal topological quantum computing (TQC), while the host topological state is by itself non-universal for TQC.
description: 26 pages, 18 Figures . v2: added references, modified universal TQC section, and other minor clarifications throughout the paper
Untersuchungen an einer slawischen Siedlung im Stadtkern Dannenberg (Elbe)
Creators: name: Wachter, Berndt
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 33 (1964): Nachrichten aus Niedersachsens Urgeschichte
Spiral structures in helical magnets
Creators: name: Borisov, A. B.
name: Rybakov, F. N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Structure and properties of two-dimensional spiral textures in helical ferromagnets have been studied. In these magnetic mediums have been predicted new types of periodical structures - spiral lattices.
description: 4 pages, JETP Lett., in press
Notgrabung an der Wallanlage bei Ohrensen, Kr. Stade
Creators: name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 36 (1967): Nachrichten aus Niedersachsens Urgeschichte
Paläolithische Fundstellen im Kreis Lüchow-Dannenberg
Creators: name: Voelkel, Gerhard
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 37 (1968): Nachrichten aus Niedersachsens Urgeschichte
Optimization process for enhancing the recovery of ammonium and phosphate from wastewater by modified rice husk biochar
Creators: name: Nguyen Lan Thanh
name: Nguyen Le Huong Nguyet
name: Van Giang Le,
name: Nguyen Thi Thuy
name: Vo Hoang Nhat Phong
name: Vo Nguyen Xuan Que
name: Vo Thanh Hang
name: Nguyen Nhat Huy
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2023
Subjects: Biochar
Ammonia
Phosphate
Adsorption
Rice husk

description: Engineering and Applied Science Research, 50, 2, 185-194
Optimal portfolio for a robust financial system
Creators: name: Maeno, Yoshiharu
name: Nishiguchi, Kenji
name: Morinaga, Satoshi
name: Matsushima, Hirokazu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business

description: This study presents an ANWSER model (asset network systemic risk model) to quantify the risk of financial contagion which manifests itself in a financial crisis. The transmission of financial distress is governed by a heterogeneous bank credit network and an investment portfolio of banks. Bankruptcy reproductive ratio of a financial system is computed as a function of the diversity and risk exposure of an investment portfolio of banks, and the denseness and concentration of a heterogeneous bank credit network. An analytic solution of the bankruptcy reproductive ratio for a small financial system is derived and a numerical solution for a large financial system is obtained. For a large financial system, Large diversity among banks in the investment portfolio makes financial contagion more damaging on the average. But large diversity is essentially effective in eliminating the risk of financial contagion in the worst case of financial crisis scenarios. A bank-unique specialization portfolio is more suitable than a uniform diversification portfolio and a system-wide specialization portfolio in strengthening the robustness of a financial system.
EMPLOYEES' PERFORMANCE AT WORK AND THE IMPACT OF STRESS
Creators: name: Ankita Mehra
Publisher: name: Zenodo
Year: 2023

description: In a business, the psychological, bodily, and performance effects of worry have a big effect on the people who work there. The changing social factors and ways of life have made a big difference in the study of stress. Not all stress is bad for you, but some stress can be seriously bad for you. The good stress, or eustress, that makes someone want to do their best makes them want to succeed and get through a tough situation. The study found that job-related stress in general and job security stress in particular are having a modest effect on how well the workers at the institute do their jobs. How an employee's body reacts to worry has a mild effect on how well they do their job. According to health data, some workers have long-term neck and back pain because they sit at work so much. The goal of this research is to investigate the impact of workplace stress on employee performance, including the characteristics, types, and consequences of workplace stress on productivity and efficacy. Despite substantial expenditures in employee performance, Indian firms have been unable to ascertain the underlying factors contributing to workplace stress. The issue has not been the focus of much research. The manifestation of a significant level of discontent among the majority of employees, as shown by their contemplation of resigning and perception of the company's indifference towards their well-being, serves as a clear indication of a profound unhappiness that undoubtedly impeded their performance. The company must conduct an assessment to determine the need for an employee support plan. In order to enhance performance levels, it is essential to establish an employee support plan that facilitates the early diagnosis and intervention of problems.
Grabhügel der vorrömischen Eisenzeit in Barel, Gemeinde Dötlingen
Creators: name: Steffens, Heino-Gerd
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 37 (1968): Nachrichten aus Niedersachsens Urgeschichte
Paired chiral spin liquid with a Fermi surface in S=1 model on the triangular lattice
Creators: name: Bieri, Samuel
name: Serbyn, Maksym
name: Senthil, T.
name: Lee, Patrick A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by recent experiments on Ba3NiSb2O9, we investigate possible quantum spin liquid ground states for spin S=1 Heisenberg models on the triangular lattice. We use Variational Monte Carlo techniques to calculate the energies of microscopic spin liquid wave functions where spin is represented by three flavors of fermionic spinon operators. These energies are compared with the energies of various competing three-sublattice ordered states. Our approach shows that the antiferromagnetic Heisenberg model with biquadratic term and single-ion anisotropy does not have a low-temperature spin liquid phase. However, for an SU(3)-invariant model with sufficiently strong ring-exchange terms, we find a paired chiral quantum spin liquid with a Fermi surface of deconfined spinons that is stable against all types of ordering patterns we considered. We discuss the physics of this exotic spin liquid state in relation with the recent experiment and suggest new ways to test this scenario.
description: 18 pages, 6 figures; replaced with published version
Sprockhoff, Ernst: Atlas der Megalithgräber Deutschlands
Creators: name: Kaufmann, Dieter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Sprockhoff, Ernst: Atlas der Megalithgräber Deutschlands. Teil 2: Mecklenburg, Brandenburg, Pommern. Römisch-Germanische Kommission des Deutschen Archäologischen Instituts zu Frankfurt a. M. Bonn. (In Kommission bei Rudolf Habelt Verlag) 1967. Katalogband mit X und 112 S., 19 Textabb., 29 Beilagen (Kartenausschnitte) und 99 Taf., Atlasband mit 144 Atlasbll.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 37 (1968): Nachrichten aus Niedersachsens Urgeschichte
Tadeusz Obmiński - architekt dwóch kultur
Creators: name: Pszczółkowski, Michał
Publisher: name: Studia z architektury nowoczesnej / Studies on the Modern Architecture
Year: 2019

description: -
description: Studia z architektury nowoczesnej / Studies on the Modern Architecture, No 6 (2018): Studia z architektury nowoczesnej / Studies on modern architecture