cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Structural studies on Klebsiella capsular polysaccharides
Creators: name: Mackie, Keith L.
Publisher: name: University of British Columbia
Year: 2010

description: Eighty-one serologically distinct strains of Klebsiella bacteria are known. The capsular polysaccharides from these bacteria are their antigenic determinants and in order to help understand the chemical basis of serological differentiation, the detailed chemical structures of these polysaccharides are being determined. The capsular polysaccharides isolated from Klebsiella serotypes K32, K36 and K70 are presented here and have been established using many different chemical techniques. Methyla- tion, partial hydrolysis, periodate oxidation and 3-elimination procedures have yielded analysable subunits of the polysaccharides Extensive use has been made of n.m.r. spectroscopy (¹H and 13 C), mass spectrometry, gas-liquid chromatography and gel filtration in the isolation and identification of the products obtained from the various degradative techniques. The repeating unit structures of K32, K36 and K70 are shown to be as follows: [chemical structures]. Some features of special interest in these structures include: the extreme acid lability of the pyruvate acetal when linking hydroxyls on C₃ and C₄ of a 2-linked L-rharanose residue (K32, K70); the existence of a 3-Lj-rhamnose unit in the structure of K32; and the presence of the pyruvate acetal on only 50% of the linear, six sugar, repeating units of K70. It is also interesting to note that while K70 and K36 have almost the same quantitative composition the chemical structures are markedly different. An efficient means of isolating large quantities of single repeating units of the Klebsiella polysaccharides using glycanase enzymes borne and utilised by specific bacteriophage, is demonstrated. A bacteriophage specific for Klebsiella K32 has been propagated, purified and used to depolymerise K32 polysaccharide. Analysis of the resulting oligosaccharides has shown the glycanase enzyme to be a a-rhamnosidase which cleaves K32 as shown below. [chemical structure] The degradation via bacteriophage is a new area of research and the work described here is only preliminary and as such is presented as an appendix.
Understanding the Characteristics of Multiple Production of Light Hadrons in Cu + Cu Interactions at Various RHIC Energies: A Model-based Analysis
Creators: name: Guptaroy, P.
name: Sau, Goutam
name: Biswas, S. K.
name: Bhattacharyya, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Experiments involving copper-copper collisions at the RHIC-BNL (USA) at energies $\sqrt{s_{NN}}$ = 22.5, 62 and 200 GeV have produced a vast amount of high-precision data which are to be analysed in the light of various competing models in the domain of multiparicle production scenario. We have chosen to analyse here the measured data on the $p_T$ -spectra of various light and non-strange secondaries at various energies mentioned above, some of their very important ratio-behaviours at the various centralities of the collisions and the nuclear modification factors $R_{AA}$ and $R_{CP}$ in the light of a version of the Sequential Chain Model (SCM). The agreements between the measured data and model-based results are generally found to be modestly satisfactory. Besides, our obtained results have also been compared with results based upon two approaches with strong standard model flavour, of which one is purely pQCD-oriented and is forwarded by Vitev.
description: 35 pages, 14 Figures, 4 Tables; Title, Abstract and the text changed; To appear in Il Nuovo Cimento B
Признание международных террористических организаций субъектами ответственности по международному праву. Опыт Нюрнбергского и Токийского трибуналов
Creators: name: Черкашина, Наталья
Publisher: name: ИП Соколова М.В.
Year: 2021
Subjects: международное уголовное право
международные террористические организации
Нюрнберг.

description: Международный научно-исследовательский журнал 11(113) 11.2021, №11(113) (2021)
title: Reactive magnetron sputtering of Cu₂O: Dependence on oxygen pressure and interface formation with indium tin oxide
Creators: name: Deuermeier, Jonas
name: Gassmann, Jürgen
name: Brötz, Joachim
name: Klein, Andreas
Publisher: name: AIP Publishing
Year: 2021

description: Thin films of copper oxides were prepared by reactive magnetron sputtering and structural, morphological, chemical, and electronic properties were analyzed using x-ray diffraction, atomic force microscopy, in situ photoelectron spectroscopy, and electrical resistance measurements. The deposition conditions for preparation of Cu(I)-oxide (Cu₂O) are identified. In addition, the interface formation between Cu₂O and Sn-doped In2O3 (ITO) was studied by stepwise deposition of Cu₂O onto ITO and vice versa. A type II (staggered) band alignment with a valence band offset.
Lattices in contact Lie groups and 5-dimensional contact solvmanifolds
Creators: name: Diatta, Andre
name: Foreman, Brendan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D10, 53D35, 53C50, 53C25, 57R17

description: This paper investigates the geometry of compact contact manifolds that are uniformized by contact Lie groups, i.e., compact manifolds that are the quotient of some Lie group G with a left invariant contact structure and a uniform lattice subgroup. We re-examine Alexander's criteria for existence of lattices on solvable Lie groups and apply them, along with some other well known tools, and use these results to prove that, in dimension 5, there are exactly seven connected and simply connected contact Lie groups with uniform lattices, all of which are solvable. Issues of symplectic boundaries are explored, as well. It is also shown that the special affine group has no uniform lattice.
description: V3: 19 pages. Latex. Former Section 5 from V1 and V2 has now been removed. We thank Dr Chris Wendl and Prof. Patrick Massot for constructive remarks that have led to some reconsiderations on former Section 5 of V2. Last version appeared at Kodai Mathematical Journal
Effects of the free evolution in the Arthurs-Kelly model of simultaneous measurement and in the retrodictive predictions of the Heisenberg uncertainty relations
Creators: name: Mendoza-Fierro, J A
name: Aguilar, L M Arévalo
name: Aguilar, V M Velázquez
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The simultaneous measurement approach of Arthurs and Kelly has been a significant tool for the better understanding of the measurement process in quantum mechanics. This model considers a strong interaction Hamiltonian by discarding the free evolution part. In this work, we study the effect of the full dynamics -- taking into account the free Hamiltonian -- on the optimal limits of retrodictive and predictive accuracy of the simultaneous measurement process of position and momentum observables. To do that, we consider a minimum uncertainty Gaussian state as the system under inspection, which allows to carry out an optimal simultaneous measurement. We show that the inclusion of the free Hamiltonian induces a spreading on the probability density of the measurement setting, which increases the value of the product of the variances of the so-called retrodictive and predictive error operators, this is equivalent to a reduction in the accuracy of the measurement.
description: 24 pages, 3 figures, sent for publication
Quantum mechanical perturbation theory in terms of characteristic functions
Creators: name: Gomberg, Martin Godfrey Luis
Publisher: name: University of British Columbia
Year: 2010

description: A quantum mechanical perturbation theory, for finite dimensional cases, based not on the perturbed Hamiltonian operator itself, but on the characteristic function f(z,λ) = det|z-H(λ)| is developed. A perturbation hierarchy in terms of derivatives of the characteristic function is constructed. From this hierarchy, perturbation series for individual eigenvalues are found. Various cases of degeneracy and degeneracy lifted in various orders are examined in detail. This perturbation theory for individual eigenvalues is generalized. Perturbation theory is developed for a set of eigenvalues considered together. Here the perturbation series are for the coefficients of a 'reduced characteristic function' for this set of eigenvalues. These perturbation series are found by a contour integral method and by an algebraic method. The expressions for the individual eigenvalues and their generalization, the expressions for the reduced characteristic function, both of which are in terms of derivatives of the (full) characteristic function, correspond, respectively, to the familiar matrix element expressions in Rayleigh-Schroedinger, and Van Vleck perturbation theories. Some illustrations and applications of the characteristic function perturbation formulae are given. General expressions are found, to second order, for the perturbed Hückel π-molecular orbital energy levels, of any perturbed even-membered ring of carbon atoms. The familiar Rayleigh-Schroedinger perturbation formulae are rederived from their corresponding characteristic function expressions. The relationship between energy derivatives and physical properties is discussed with particular reference to simple spin systems. Expressions for the dipole and guadrupole spin polarizations and for spin polarizabilities in simple spin systems are found from the characteristic functions of the spin systems. These properties are useful in connection with weak hyperfine coupling, and for predicting the intensity of peaks occurring in polycrystalline spectra.
Additional file 4 of Establishment of a novel cell cycle-related prognostic signature predicting prognosis in patients with endometrial cancer
Creators: name: Liu, Jinhui
name: Mei, Jie
name: Li, Siyue
name: Wu, Zhipeng
name: Zhang, Yan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 4: Figure S3. (A-B) Expression levels of NOTCH2 and ODF2 in different histological type, (C) expression level of ODF2 in different age group.
ИЧКИ ИШЛАР ОРГАНЛАРИ ТЕЗКОР-ҚИДИРУВ ФАОЛИЯТИДА ИНСОН ҲУҚУҚЛАРИ, ЭРКИНЛИКЛАРИ ВА ҚОНУНИЙ МАНФААТЛАРИНИ ТАЪМИНЛАШДА ЎЗБЕКИСТОН РЕСПУБЛИКАСИНИНГ ЖИНОЯТ-ПРОЦЕССУАЛ КОДЕКС НОРМАЛАРИНИ ТАКОМИЛЛАШТИРИШ
Creators: name: Бобомуродов, Фарход
Publisher: name: Zenodo
Year: 2024

description: Мақолада тeзкор-қидирув фаолиятида инсон ҳуқуқлари, эркинликлари ва қонуний манфаатларини таъминлашда ички ишлар органлари тезкор бўлинмалари амалиётида учраётган реал муаммолар таҳлил қилиниб, қонунчиликка ўзгартириш киритилиши асослантирилган, хулоса ва тавсиялар ишлаб чиқилган.
Additional file 12 of SIGIRR deficiency contributes to CD4 T cell abnormalities by facilitating the IL1/C/EBPβ/TNF-α signaling axis in rheumatoid arthritis
Creators: name: Teng, Xiu
name: Mou, Da-Chao
name: Li, Hui-Fang
name: Jiao, Ling
name: Wu, Sha-Sha
name: Pi, Jin-Kui
name: Wang, Yan
name: Zhu, Meng-Li
name: Tang, Meng
name: Liu, Yi
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 12: Table S5. Primer Sets for qRT‒PCR and Mouse Genotyping.
Astrophysical explosions revisited: collisionless coupling of debris to magnetized plasma
Creators: name: Le, Ari
name: Winske, Dan
name: Stanier, Adam
name: Daughton, William
name: Cowee, Misa
name: Wetherton, Blake
name: Guo, Fan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The coupling between a rapidly expanding cloud of ionized debris and an ambient magnetized plasma is revisited with a hybrid (kinetic ion/fluid electron) simulation code that allows a study over a wide range of plasma parameters. Over a specified range of hypothetical conditions, simple scaling laws in terms of the total debris mass and explosion speed are derived and verified for the maximal size of the debris cloud and the fraction of debris that free-streams from the burst along the magnetic field. The amount of debris that escapes from the burst with minimal coupling to the background magnetic field increases with the debris gyroradius. Test cases with two different debris species--including a heavy minority species with a relatively large gyroradius--highlight how the collisionless coupling of the debris depends on the single-particle trajectories as well as the overall conservation of energy and momentum.
description: To appear in JGR: Space Physics
Data availability (Final version) Manuscript id: aoc.202001642.R1.pdf
Creators: name: Mosad El-Ghamry
Publisher: name: figshare
Year: 2021
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: 30101 Analytical Spectrometry
subject: Computational Chemistry
subject: NMR Spectroscopy

description: Data availability (Final version)
Коррупция в системе высшего образования Российской Федерации
Creators: name: Черкашина, Наталья
Publisher: name: ИП Соколова М.В.
Year: 2021
Subjects: Коррупция
система образования
высшее образование

description: Международный научно-исследовательский журнал 11(113) 11.2021, №11(113) (2021)
All Mutually Unbiased Bases in Dimensions Two to Five
Creators: name: Brierley, Stephen
name: Weigert, Stefan
name: Bengtsson, Ingemar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: All complex Hadamard matrices in dimensions two to five are known. We use this fact to derive all inequivalent sets of mutually unbiased (MU) bases in low dimensions. We find a three-parameter family of triples of MU bases in dimension four and two inequivalent classes of MU triples in dimension five. We confirm that the complete sets of (d+1) MU bases are unique (up to equivalence) in dimensions below six, using only elementary arguments for d less than five.
description: As the published version with minor changes
Additional file 1 of Establishment of a novel cell cycle-related prognostic signature predicting prognosis in patients with endometrial cancer
Creators: name: Liu, Jinhui
name: Mei, Jie
name: Li, Siyue
name: Wu, Zhipeng
name: Zhang, Yan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 1: Table S1. The clinicopathological parameters of EnCa patients involved in this research.
Discrete Morse theory for totally non-negative flag varieties
Creators: name: Rietsch, Konstanze
name: Williams, Lauren
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 14M15, 20G15

description: In a seminal 1994 paper, Lusztig extended the theory of total positivity by introducing the totally non-negative part (G/P)_{\geq 0} of an arbitrary (generalized, partial) flag variety G/P. He referred to this space as a "remarkable polyhedral subspace", and conjectured a decomposition into cells, which was subsequently proven by the first author. Subsequently the second author made the concrete conjecture that this cell decomposed space is the next best thing to a polyhedron, by conjecturing it to be a regular CW complex that is homeomorphic to a closed ball. In this article we use discrete Morse theory to prove this conjecture up to homotopy-equivalence. Explicitly, we prove that the boundaries of the cells are homotopic to spheres, and the closures of cells are contractible. The latter part generalizes a result of Lusztig's that (G/P)_{\geq 0} -- the closure of the top-dimensional cell -- is contractible. Concerning our result on the boundaries of cells, even the special case that the boundary of the top-dimensional cell (G/P)_{> 0} is homotopic to a sphere, is new for all G/P other than projective space.
description: 30 pages
Ab Initio Calculations of the Walls Shear Strength of Carbon Nanotubes
Creators: name: Bichoutskaia, E.
name: Ershova, O. V.
name: Lozovik, Yu. E.
name: Popov, A. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dependence of the energy of interwall interaction in double-walled carbon nanotubes (DWNT) on the relative position of walls has been calculated using the density functional method. This dependence is used to evaluate forces that are necessary for the relative telescopic motion of walls and to calculate the shear strength of DWNT for the relative sliding of walls along the nanotube axis and for their relative rotation about this axis. The possibility of experimental verification of the obtained results is discussed.
description: 4 pages, 1 figure
On the Shear Instability in Relativistic Neutron Stars
Creators: name: Corvino, Giovanni
name: Rezzolla, Luciano
name: Bernuzzi, Sebastiano
name: De Pietri, Roberto
name: Giacomazzo, Bruno
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present new results on instabilities in rapidly and differentially rotating neutron stars. We model the stars in full general relativity and describe the stellar matter adopting a cold realistic equation of state based on the unified SLy prescription. We provide evidence that rapidly and differentially rotating stars that are below the expected threshold for the dynamical bar-mode instability, beta_c = T/|W| ~ 0.25, do nevertheless develop a shear instability on a dynamical timescale and for a wide range of values of beta. This class of instability, which has so far been found only for small values of beta and with very small growth rates, is therefore more generic than previously found and potentially more effective in producing strong sources of gravitational waves. Overall, our findings support the phenomenological predictions made by Watts, Andersson and Jones on the nature of the low-T/|W|.
description: 20 pages; accepted to the Classical and Quantum Gravity special issue for MICRA2009
Continuous-time trading and the emergence of probability
Creators: name: Vovk, Vladimir
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60G17 (Primary), 60G05, 60G44, 91G99 (Secondary)

description: This paper establishes a non-stochastic analogue of the celebrated result by Dubins and Schwarz about reduction of continuous martingales to Brownian motion via time change. We consider an idealized financial security with continuous price path, without making any stochastic assumptions. It is shown that typical price paths possess quadratic variation, where "typical" is understood in the following game-theoretic sense: there exists a trading strategy that earns infinite capital without risking more than one monetary unit if the process of quadratic variation does not exist. Replacing time by the quadratic variation process, we show that the price path becomes Brownian motion. This is essentially the same conclusion as in the Dubins-Schwarz result, except that the probabilities (constituting the Wiener measure) emerge instead of being postulated. We also give an elegant statement, inspired by Peter McCullagh's unpublished work, of this result in terms of game-theoretic probability theory.
description: 54 pages, as compared with the previous version, the main result (Theorem 6.3) slightly strengthened and a few further clarifications added
The enclosure method for the heat equation
Creators: name: Ikehata, Masaru
name: Kawashita, Mishio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30, 80A23

description: This paper shows how the enclosure method which was originally introduced for elliptic equations can be applied to inverse initial boundary value problems for parabolic equations. For the purpose a prototype of inverse initial boundary value problems whose governing equation is the heat equation is considered. An explicit method to extract an approximation of the value of the support function at a given direction of unknown discontinuity embedded in a heat conductive body from the temperature for a suitable heat flux on the lateral boundary for a fixed observation time is given.
description: 12pages. This is the final version
Simulation of $Z$ boson $p_{T}$ spectrum at Tevatron by leading-order event generators
Creators: name: Odaka, Shigeru
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the transverse momentum ($p_{T}$) spectrum of $Z$ boson production measured at Fermilab Tevatron can be well reproduced by leading-order event generators if $Z$ + 1 jet processes are included with a proper solution for the double-count problem and if the parton shower (PS) branch kinematics are defined appropriately. The choice of the PS evolution variable does not definitely determine the low-$p_{T}$ behavior. Our new event generator employing the limited leading-log (LLL) subtraction and a built-in leading-log PS reproduces the spectrum very well, not only in large $p_{T}$ regions but also at low $p_{T}$ down to $p_{T}$ = 0.
description: 13 pages, 4 figures: explanations were added to clarify the discussions. Minor changes for publication
Theoretical study on sieving of potato heap elements in spiral separator
Creators: name: Bulgakov, V.
name: Pascuzzi, S.
name: Nikolaenko, S.
name: Santoro, F.
name: Sotirios Anifantis, A.
name: Olt, J.
Publisher: name: Agronomy Research
Year: 2019
Subjects: cleaning
digging
mathematical model
potato
spiral roll
article

description: One of the principal problems in the harvesting of potatoes is the cleaning of the lifted heap from soil and plant impurities. The low quality in the performance of this harvesting work process operation is the main cause of the withdrawal from fields of considerable amounts of fertile soil. In order to facilitate choosing the optimal parameters for the new design of the spiral potato heap cleaning unit, a mathematical model of sieving the soil impurities through its cleaning spirals has been developed. The obtained analytical expressions have been solved with the use of a PC and the results have been used for plotting the graphic relations between the parameters of the examined process of a variable-mass body’s motion on the surface of a spiral, which have made it possible to select the optimal design and kinematic parameters of the spiral cleaning unit under consideration. The obtained graphic relations indicate that the rate of sieving in the spiral separator depends on many factors, including the initial mass, the design dimensions (spiral’s radius, helix angle etc.), the frictional properties of the surface, the angular parameters of the position of the potato heap elements on the spiral’s surface, and the angular velocity of the rotational motion of the spiral roll itself.
New Measurement of the Relative Scintillation Efficiency of Xenon Nuclear Recoils Below 10 keV
Creators: name: Aprile, E.
name: Baudis, L.
name: Choi, B.
name: Giboni, K. L.
name: Lim, K. E.
name: Manalaysay, A.
name: Monzani, M. E.
name: Plante, G.
name: Santorelli, R.
name: Yamashita, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Liquid xenon is an important detection medium in direct dark matter experiments, which search for low-energy nuclear recoils produced by the elastic scattering of WIMPs with quarks. The two existing measurements of the relative scintillation efficiency of nuclear recoils below 20 keV lead to inconsistent extrapolations at lower energies. This results in a different energy scale and thus sensitivity reach of liquid xenon dark matter detectors. We report a new measurement of the relative scintillation efficiency below 10 keV performed with a liquid xenon scintillation detector, optimized for maximum light collection. Greater than 95% of the interior surface of this detector was instrumented with photomultiplier tubes, giving a scintillation yield of 19.6 photoelectrons/keV electron equivalent for 122 keV gamma rays. We find that the relative scintillation efficiency for nuclear recoils of 5 keV is 0.14, staying constant around this value up to 10 keV. For higher energy recoils we measure a value around 20%, consistent with previously reported data. In light of this new measurement, the XENON10 experiment's results on spin-independent WIMP-nucleon cross section, which were calculated assuming a constant 0.19 relative scintillation efficiency, change from $8.8\times10^{-44}$ cm$^2$ to $9.9\times10^{-44}$ cm$^2$ for WIMPs of mass 100 GeV/c$^2$, and from $4.4\times10^{-44}$ cm$^2$ to $5.6\times10^{-44}$ cm$^2$ for WIMPs of mass 30 GeV/c$^2$.
description: 8 pages, 8 figures
Electronic Descriptors for Supervised Spectroscopic Predictions
Creators: name: de Armas-Morejón, Carlos Manuel
name: Montero-Cabrera, Luis A.
name: Rubio, Angel
name: Jornet-Somoza, Joaquim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spectroscopic properties of molecules holds great importance for the description of the molecular response under the effect of an UV/Vis electromagnetic radiation. Computationally expensive ab initio (e.g. MultiConfigurational SCF, Coupled Cluster) or TDDFT methods are commonly used by the quantum chemistry community to compute these properties. In this work, we propose a (supervised) Machine Learning approach to model the absorption spectra of organic molecules. Several supervised ML methods have been tested such as Kernel Ridge Regression (KRR), Multiperceptron Neural Networs (MLP) and Convolutional Neural Networks. The use of only geometrical descriptors (e.g. Coulomb Matrix) proved to be insufficient for an accurate training. Inspired on the TDDFT theory, we propose to use a set of electronic descriptors obtained from low-cost DFT methods: orbital energy differences, transition dipole moment between occupied and unoccupied Kohn-Sham orbitals and charge-transfer character of mono-excitations. We demonstrate that with this electronic descriptors and the use of Neural Networks we can predict not only a density of excited states, but also getting very good estimation of the absorption spectrum and charge-transfer character of the electronic excited states, reaching results close to the chemical accuracy (~2 kcal/mol or ~0.1eV).
Additional file 1 of Mechanisms of Spica Prunellae against thyroid-associated Ophthalmopathy based on network pharmacology and molecular docking
Creators: name: Zhang, Yuhan
name: Li, Xianzhi
name: Guo, Congcong
name: Dong, Jianjun
name: Liao, Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Additional file 1: Table S1 The putative targets of SP.
Additional file 5 of Establishment of a novel cell cycle-related prognostic signature predicting prognosis in patients with endometrial cancer
Creators: name: Liu, Jinhui
name: Mei, Jie
name: Li, Siyue
name: Wu, Zhipeng
name: Zhang, Yan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 5: Figure S5. Survival time of patients in high-risk and low-risk group of different subgroups. (A) endometrioid subgroup, (B) grade G1&G2 subgroup, (C) grade G3&G4 subgroup, (D) stage III & stage IV subgroup, (E) tumor free subgroup, (F) age>60 subgroup, (G) age≤60 subgroup.
Additional file 3: of The effects of yoga compared to active and inactive controls on physical function and health related quality of life in older adults- systematic review and meta-analysis of randomised controlled trials
Creators: name: Sivaramakrishnan, Divya
name: Fitzsimons, Claire
name: Kelly, Paul
name: Ludwig, Kim
name: Mutrie, Nanette
name: Saunders, David
name: Baker, Graham
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Biological Sciences not elsewhere classified
Developmental Biology
Science Policy

description: The formula used in the study for calculating the sample size after adjusting for cluster randomisation is provided in this file. The studies included in this analysis are also listed in this document. (PDF 1175 kb)
Thue's Fundamentaltheorem, II: Further Refinements and Examples
Creators: name: Voutier, Paul
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J82, 11J68

description: In this paper, we sharpen and simplify our earlier results based on Thue's Fundamentaltheorem and use it to obtain effective irrationality measures for certain roots of polynomials of the form $(x-\sqrt{t})^{n}+(x+\sqrt{t})^{n}$, where $n \geq 4$ is a positive integer and $t$ is a negative integer. For $n=4$ and $n=5$, we find infinitely many such algebraic numbers.
description: corrections to accepted version
Bohmian mechanics versus Madelung quantum hydrodynamics
Creators: name: Tsekov, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is shown that the Bohmian mechanics and the Madelung quantum hydrodynamics are different theories and the latter is a better ontological interpretation of quantum mechanics. A new stochastic interpretation of quantum mechanics is proposed, which is the background of the Madelung quantum hydrodynamics. Its relation to the complex mechanics is also explored. A new complex hydrodynamics is proposed, which eliminates completely the Bohm quantum potential. It describes the quantum evolution of the probability density by a convective diffusion with imaginary transport coefficients.
description: The paper is dedicated to the 100th anniversary of A.B. Datsev
Spin-down of neutron stars by neutrino emission
Creators: name: Dvornikov, Maxim
name: Dib, Claudio O.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the spin-down of a neutron star during its early stages due to the neutrino emission. The mechanism we consider is the subsequent collisions of the produced neutrinos with the outer shells of the star. We find that this mechanism can indeed slow down the star rotation but only in the first tens of seconds of the core formation, which is when the appropriate conditions of flux and collision rate are met. We find that this mechanism can extract less than 1 % of the star angular momentum, a result which is much less than previously estimated by other authors.
description: 9 pages, 2 eps figures, RevTeX 4-1. The paper was significantly modified. Now it addresses only the issues of a neutron star spin-down. Version to be published in Phys. Rev. D
Locally well generated homotopy categories of complexes
Creators: name: Stovicek, Jan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 18G35 (Primary), 18E30, 18E35, 16D90 (Secondary)

description: We show that the homotopy category of complexes K(B) over any finitely accessible additive category B is locally well generated. That is, any localizing subcategory L in K(B) which is generated by a set is well generated in the sense of Neeman. We also show that K(B) itself being well generated is equivalent to B being pure semisimple, a concept which naturally generalizes right pure semisimplicity of a ring R for B = Mod-R.
description: 17 pages, minor changes, final version, to appear in Documenta Mathematica
ПРОБЛЕМЫ ОЦЕНКИ ПЕДАГОГИЧЕСКОГО ПЕРСОНАЛА
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ИП Соколова М.В.
Year: 2021
Subjects: профессорско-преподавательский состав
преподаватель
оценка
производительность труда
квалификация

description: Международный научно-исследовательский журнал 11(113) 11.2021, №11(113) (2021)
Experimental Findings on the Sources of Detected Unrecoverable Errors in GPUs
Creators: name: Santos, Fernando Fernandes dos
name: Malde, Sujit
name: Cazzaniga, Carlo
name: Frost, Christopher
name: Carro, Luigi
name: Rech, Paolo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: We investigate the sources of Detected Unrecoverable Errors (DUEs) in GPUs exposed to neutron beams. Illegal memory accesses and interface errors are among the more likely sources of DUEs. ECC increases the launch failure events. Our test procedure has shown that ECC can reduce the DUEs caused by Illegal Address access up to 92% for Kepler and 98% for Volta.
On the Correlation Between the Spin-Independent and Spin-Dependent Direct Detection of Dark Matter
Creators: name: Cohen, Timothy
name: Phalen, Daniel J.
name: Pierce, Aaron
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the correlation between spin-independent and spin-dependent scattering in the context of MSSM neutralino dark matter for both thermal and non-thermal histories. We explore the generality of this relationship with reference to other models. We discuss why either fine-tuning or numerical coincidences are necessary for the correlation to break down. We derive upper bounds on spin-dependent scattering mediated by a Z boson.
description: 31 pages, 6 figures, 3 appendices; v2: refs added, minor typos corrected, journal version
Evidence for a Self-Bound Liquid State and the Commensurate-Incommensurate Coexistence in 2D $^3$He on Graphite
Creators: name: Sato, D.
name: Tsuji, D.
name: Takayoshi, S.
name: Obata, K.
name: Matsui, T.
name: Fukuyama, Hiroshi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We made heat-capacity measurements of two dimensional (2D) $^3$He adsorbed on graphite preplated with monolayer $^4$He in a wide temperature range (0.1 $\leq T \leq$ 80 mK) at densities higher than that for the 4/7 phase (= 6.8 nm$^{-2}$). In the density range of 6.8 $\leq ρ\leq$ 8.1 nm$^{-2}$, the 4/7 phase is stable against additional $^3$He atoms up to 20% and they are promoted into the third layer. We found evidence that such promoted atoms form a self-bound 2D Fermi liquid with an approximate density of 1 nm$^{-2}$ from the measured density dependence of the $γ$-coefficient of heat capacity. We also show evidence for the first-order transition between the commensurate 4/7 phase and the ferromagnetic incommensurate phase in the second layer in the density range of 8.1 $\leq ρ\leq$ 9.5 nm$^{-2}$.
description: 6 pages, 4 figures
title: Millimeter-wave near-field imaging using multi-mode probes
Creators: name: Hoffmann, Dennis
Publisher: name: Universität Stuttgart
Year: 2025
Subjects: subject: 621.3

description: A mmWave near-field imaging concept is presented, which, in addition to purely transversal field components, uses a longitudinal field component to illuminate an object. A prototype at 31 GHz demonstrates, how the additional use of higher-order modes improve the quality of images generated in mmWave near-field imaging.
title: Microrobot collectives with reconfigurable morphologies, behaviors, and functions
Creators: name: Gardi, Gaurav
name: Ceron, Steven
name: Wang, Wendong
name: Petersen, Kirstin
name: Sitti, Metin
Publisher: name: Universität Stuttgart
Year: 2022
Subjects: subject: 530
subject: 620

description: Mobile microrobots, which can navigate, sense, and interact with their environment, could potentially revolutionize biomedicine and environmental remediation. Many self-organizing microrobotic collectives have been developed to overcome inherent limits in actuation, sensing, and manipulation of individual microrobots; however, reconfigurable collectives with robust transitions between behaviors are rare. Such systems that perform multiple functions are advantageous to operate in complex environments. Here, we present a versatile microrobotic collective system capable of on-demand reconfiguration to adapt to and utilize their environments to perform various functions at the air-water interface. Our system exhibits diverse modes ranging from isotropic to anisotrpic behaviors and transitions between a globally driven and a novel self-propelling behavior. We show the transition between different modes in experiments and simulations, and demonstrate various functions, using the reconfigurability of our system to navigate, explore, and interact with the environment. Such versatile microrobot collectives with globally driven and self-propelled behaviors have great potential in future medical and environmental applications.
Condensed matter lessons about the origin of time
Creators: name: Jannes, Gil
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is widely hoped that quantum gravity will shed light on the question of the origin of time in physics. The currently dominant approaches to a candidate quantum theory of gravity have naturally evolved from general relativity, on the one hand, and from particle physics, on the other hand. A third important branch of 20th century `fundamental' physics, condensed-matter physics, also offers an interesting perspective on quantum gravity, and thereby on the problem of time. The bottomline might sound disappointing: to understand the origin of time, much more experimental input is needed than what is available today. Moreover it is far from obvious that we will ever find out the true origin of physical time, even if we become able to directly probe physics at the Planck scale. But we might learn some interesting lessons about time and the structure of our universe in the process. A first lesson is that there are probably several characteristic scales associated with "quantum gravity" effects, rather than the single Planck scale usually considered. These can differ by several orders of magnitude, and thereby conspire to hide certain effects expected from quantum gravity, rendering them undetectable even with Planck-scale experiments. A more tentative conclusion is that the hierarchy between general relativity, special relativity and Newtonian physics, usually taken for granted, might have to be interpreted with caution.
description: v1: 9 pages. Fourth juried prize in FQXi essay contest on "the Nature of Time" (2008). v2: 2015 update, partially rewritten and extended for Foundations of Physics. arXiv admin note: substantial text overlap with arXiv:0810.0613
title: Observation of ultrafast interfacial Meitner-Auger energy transfer in a Van der Waals heterostructure
Creators: name: Dong, Shuo
name: Beaulieu, Samuel
name: Selig, Malte
name: Rosenzweig, Philipp
name: Christiansen, Dominik
name: Pincelli, Tommaso
name: Dendzik, Maciej
name: Ziegler, Jonas D.
name: Maklar, Julian
name: Xian, R. Patrick
name: Neef, Alexander
name: Mohammed, Avaise
name: Schulz, Armin
name: Stadler, Mona
name: Jetter, Michael
name: Michler, Peter
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Takagi, Hidenori
name: Starke, Ulrich
name: Chernikov, Alexey
name: Wolf, Martin
name: Nakamura, Hiro
name: Knorr, Andreas
name: Rettig, Laurenz
name: Ernstorfer, Ralph
Publisher: name: Universität Stuttgart
Year: 2023
Subjects: subject: 530
subject: 620

description: Atomically thin layered van der Waals heterostructures feature exotic and emergent optoelectronic properties. With growing interest in these novel quantum materials, the microscopic understanding of fundamental interfacial coupling mechanisms is of capital importance. Here, using multidimensional photoemission spectroscopy, we provide a layer- and momentum-resolved view on ultrafast interlayer electron and energy transfer in a monolayer-WSe2/graphene heterostructure. Depending on the nature of the optically prepared state, we find the different dominating transfer mechanisms: while electron injection from graphene to WSe2 is observed after photoexcitation of quasi-free hot carriers in the graphene layer, we establish an interfacial Meitner-Auger energy transfer process following the excitation of excitons in WSe2. By analysing the time-energy-momentum distributions of excited-state carriers with a rate-equation model, we distinguish these two types of interfacial dynamics and identify the ultrafast conversion of excitons in WSe2 to valence band transitions in graphene. Microscopic calculations find interfacial dipole-monopole coupling underlying the Meitner-Auger energy transfer to dominate over conventional Förster- and Dexter-type interactions, in agreement with the experimental observations. The energy transfer mechanism revealed here might enable new hot-carrier-based device concepts with van der Waals heterostructures.
On Epstein's trajectory model of non-relativistic quantum mechanics
Creators: name: Struyve, Ward
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 1952 Bohm presented a theory about non-relativistic point-particles moving along deterministic trajectories and showed how it reproduces the predictions of standard quantum theory. This theory was actually presented before by de Broglie in 1926, but Bohm's particular formulation of the theory inspired Epstein to come up with a different trajectory model. The aim of this paper is to examine the empirical predictions of this model. It is found that the trajectories in this model are in general very different from those in the de Broglie-Bohm theory. In certain cases they even seem bizarre and rather unphysical. Nevertheless, it is argued that the model seems to reproduce the predictions of standard quantum theory (just as the de Broglie-Bohm theory).
description: 12 pages, no figures, LaTex; v2 minor improvements
Controlling the conductance of molecular wires by defect engineering: a divide et impera approach
Creators: name: Nozaki, Daijiro
name: Pastawski, Horacio M.
name: Cuniberti, Gianaurelio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding of charge transport mechanisms in nanoscale structures is essential for the development of molecular electronic devices. Charge transport through 1D molecular systems connected between two contacts is influenced by several parameters such as the electronic structure of the molecule and the presence of disorder and defects. In this work, we have modeled 1D molecular wires connected between electrodes and systematically investigated the influence of both soliton formation and the presence of defects on properties such as the conductance and the density of states. Our numerical calculations have shown that the transport properties are highly sensitive to the position of both solitons and defects. Interestingly, the introduction of a single defect in the molecular wire which divides it into two fragments both consisting of an odd number of sites creates a new conduction channel in the center of the band gap resulting in higher zero-bias conductance than for defect free systems. This phenomenon suggests alternative routes toward engineering molecular wires with enhanced conductance.
description: 9 pages, 10 figures. to appear in New J. Phys
Generalized de Bruijn words for Primitive words and Powers
Creators: name: Au, Yu Hin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that for every $n \geq 1$ and over any finite alphabet, there is a word whose circular factors of length $n$ have a one-to-one correspondence with the set of primitive words. In particular, we prove that such a word can be obtained by a greedy algorithm, or by concatenating all Lyndon words of length $n$ in increasing lexicographic order. We also look into connections between de Bruijn graphs of primitive words and Lyndon graphs. Finally, we also show that the shortest word that contains every $p$-power of length $pn$ over a $k$-letter alphabet has length between $pk^n$ and roughly $(p+ \frac{1}{k}) k^n$, for all integers $p \geq 1$. An algorithm that generates a word which achieves the upper bound is provided.
description: Revisions made for publication
On the radiative efficiencies, Eddington ratios, and duty cycles of luminous high-redshift quasars
Creators: name: Shankar, Francesco
name: Crocce, Martin
name: Miralda-Escude', Jordi
name: Fosalba, Pablo
name: Weinberg, David H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the characteristic radiative efficiency ε, Eddington ratio λ, and duty cycle P_0 of high-redshift active galactic nuclei (AGN), drawing on measurements of the AGN luminosity function at z=3-6 and, especially, on recent measurements of quasar clustering at z=3-4.5 from the Sloan Digital Sky Survey. The free parameters of our models are ε, λ, and the normalization, scatter, and redshift evolution of the relation between black hole mass \mbh and halo virial velocity V_vir. We compute the luminosity function from the implied growth of the black hole mass function and the quasar correlation length from the bias of the host halos. We test our adopted formulae for the halo mass function and halo bias against measurements from the large N-body simulation developed by the MICE collaboration. The strong clustering of AGNs observed at z=3 and, especially, at z=4 implies that massive black holes reside in rare, massive dark matter halos. Reproducing the observed luminosity function then requires high efficiency εand/or low Eddington ratio λ, with a lower limit (based on 2σagreement with the measured z=4 correlation length) ε> 0.7λ/(1+0.7λ), implying ε> 0.17 for λ> 0.25. Successful models predict high duty cycles, P_0~0.2, 0.5, and 0.9 at z=3.1, 4.5 and 6, respectively, and they require that the fraction of halo baryons locked in the central black hole is much larger than the locally observed value. The rapid drop in the abundance of the massive and rare host halos at z>7 implies a proportionally rapid decline in the number density of luminous quasars, much stronger than simple extrapolations of the z=3-6 luminosity function would predict. (abridged)
description: Replaced with version accepted by ApJ. More detailed analysis including black hole mergers. Results unchanged