cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of undulations on Spontaneous Braid formation
Creators: name: Lee, D. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: 82Dxx

description: This paper extends on a recent work where it was shown that forces dependent on the helical structure may cause two DNA molecules to spontaneously braid [R. Cortini et Al, Biophys. J. 101, 875 (2011)]. Here, bending fluctuations of DNA centre lines about the braid axis are incorporated into the braiding theory. The free energy of the pair of molecules is recalculated and compared to its value without incorporating undulations. We find that the loss of configurational entropy due to confinement of the molecules in the braid is rather high. This contribution to the Free Energy pushes up the amount of attraction needed for spontaneous braiding due to helix dependant forces. The theory will be further developed for plectonemes and braids under mechanical forces, in later work.
description: Main Text+Supplemental material. 5 figures
Non(anti)commutative gauge theories in harmonic superspace
Creators: name: Quevedo Z., Leonardo E.
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Non-singlet Q-deformations
subject: noncommutative gauge theories
subject: harmonic superspace
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Nicht-adiabatische Halbleitereinzelelektronenpumpe unter Magnetfeldeinfluss
Creators: name: Leicht, Christoph
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Quantum dot
subject: single-electron transport
subject: single-electron pump
subject: SET-pump
subject: re-definition of the Ampere
subject: precision current measurement
subject: Quantenpunkt
subject: Einzelladungstransport
subject: Einzelelektronenpumpe
subject: SET-Pumpe
subject: Neudefinition Ampere
subject: Präzisionsstrommessung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Additional file 1 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Supplemental Methods.
Improved variational quantum eigensolver via quasi-dynamical evolution
Creators: name: Jattana, Manpreet Singh
name: Jin, Fengping
name: De Raedt, Hans
name: Michielsen, Kristel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The variational quantum eigensolver (VQE) is a hybrid quantum-classical algorithm designed for current and near-term quantum devices. Despite its initial success, there is a lack of understanding involving several of its key aspects. There are problems with VQE that forbid a favourable scaling towards quantum advantage. In order to alleviate the problems, we propose and extensively test a quantum annealing inspired heuristic that supplements VQE. The improved VQE enables an efficient initial state preparation mechanism, in a recursive manner, for a quasi-dynamical unitary evolution. We conduct an in-depth scaling analysis of finding the ground state energies with increasing lattice sizes of the Heisenberg model, employing simulations of up to $40$ qubits that manipulate the complete state vector. For the current devices, we further propose a benchmarking toolkit using a mean-field model and test it on IBM Q devices. The improved VQE avoids barren plateaus, exits local minima, and works with low-depth circuits. Realistic gate execution times estimate a longer computational time to complete the same computation on a fully functional error-free quantum computer than on a quantum computer emulator implemented on a classical computer. However, our proposal can be expected to help accurate estimations of the ground state energies beyond $50$ qubits when the complete state vector can no longer be stored on a classical computer, thus enabling quantum advantage.
Optische Untersuchungen an extern verspannten Indiumgalliumnitrid Quantenfilmen und der Spindynamik in hoch n-dotiertem Galliumarsenid
Creators: name: Kuhn, Hendrik Arne
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Laser-spectroscopy
subject: gallium arsenide
subject: nitride quantumwells
subject: Laser-Spektroskopie
subject: Galliumarsenid
subject: Nitridquantenfilme
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
The Density Distribution in Turbulent Bi-stable Flows
Creators: name: Gazol, Adriana
name: Kim, Jongsoo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We numerically study the volume density probability distribution function (n-PDF) and the column density probability distribution function (Sigma-PDF) resulting from thermally bistable turbulent flows. We analyze three-dimensional hydrodynamic models in periodic boxes of 100pc by side, where turbulence is driven in the Fourier space at a wavenumber corresponding to 50pc. At low densities (n <= 0.6cm^-3) the n-PDF, is well described by a lognormal distribution for average local Mach number ranging from ~0.2 to ~5.5. As a consequence of the non linear development of thermal instability (TI), the logarithmic variance of the distribution for the diffuse gas increases with M faster than in the well known isothermal case. The average local Mach number for the dense gas (n >= 7.1cm^-3) goes from ~1.1 to ~16.9 and the shape of the high density zone of the n-PDF changes from a power-law at low Mach numbers to a lognormal at high M values. In the latter case the width of the distribution is smaller than in the isothermal case and grows slower with M. At high column densities the Sigma-PDF is well described by a lognormal for all the Mach numbers we consider and, due to the presence of TI, the width of the distribution is systematically larger than in the isothermal case but follows a qualitatively similar behavior as M increases. Although a relationship between the width of the distribution and M can be found for each one of the cases mentioned above, these relations are different form those of the isothermal case.
description: 23 pages and 7 figures. Accepted for publication in ApJ
Additional file 2 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Admission Diagnosis category of VITdAL-ICU cohort patients by day 0 N-Formylmethionine abundance quartiles.
Geranium bohemicum L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: G. bohemicum L. Cat. 60. l: Ob Plex, 1500m (Gams); ob La Giète bei Alesse, 1300-1520 m, halbruderal an Wegrändern, den Standort von Jahr zu Jahr wechselnd (Oberson 1948-1951). - 2: Leytron (nach Gams in Hegi, Flora, Bd. IV, 3, S. 1698 [1924]). - 3: Bei Bovernier (Besse); unter den Gorges du Durnant (J.); La Poya nördlich Champex (Exk. Soc.Murith.); nördlich Les Planches,1400m(Arbenz 1941); unter der Pierre à Voir (Goudet); Nax (Pannatier); ob Itravers (Val de Réchy) (nach Gams, l. c.); im Val d'Anniviers zwischen Vercorin und Pinsec wieder 1913beobachtet (Mantz).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Additional file 3 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Associations between plasma N-formylmethionine abundance quartiles and 28-day mortality. Logistic regression models shown for crude and adjusted VITdAL-ICU and RoCI cohort survival data. Additional models shown with adjustment for total bilirubin, creatinine, and/or propofol exposure.
Nonconforming boundary elements and finite elements for interface and contact problems with friction : hp-version for mortar, penalty and Nitsche's methods
Creators: name: Chernov, Alexey
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Frictional contact
subject: interface problems
subject: finite elements
subject: boundary elements
subject: FE/BE coupling
subject: hp-methods
subject: a priori error
subject: a posteriori error
subject: mortar
subject: penalty
subject: Nitsche's method
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Nonlinear spectroscopy of closed degenerate two-level systems
Creators: name: Spani Molella, Luca
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Coherent population trapping
subject: electromagnetically induced transparency
subject: electromagnetically induced absorption
subject: Kerr effect
subject: light-induced birefringence
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Gemeinsam zur Musik : eine qualitative Studie über Jugendliche mit Lernbeeinträchtigungen als Teilnehmende an Musikgruppen in der Inklusion
Creators: name: Köllmann, Elke
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Inclusion
subject: music groups
subject: meaning
subject: Inklusion
subject: Musikgruppen
subject: Bedeutung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: [no abstract]
Additional file 1 of Effect of high-intensity interval training on aerobic capacity and fatigue among patients with prostate cancer: a meta-analysis
Creators: name: Chang, Ming
name: Wang, Junguo
name: Hashim, Hairul A.
name: Xie, Shihao
name: Malik, Adam A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. PRISMA 2009 checklist.
Understanding the growth of high-aspect-ratio grains in granular L10-FePt thin-film magnetic media
Creators: name: Xu, Chengchao
name: Zhou, Bing
name: Du, Tianxiang
name: Varaprasad, B. S. D. Ch. S
name: Laughlin, David E.
name: JianGang
name: Zhu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A systematic investigation has been performed to optimize the microstructure of $\mathrm{L1_0-FePt-SiO_x}$ granular thin film as recording media for heat-assisted magnetic recording. The FePt-BN nucleation layer, which is stable even at $700^\circ \text{C}$, is used to control the grain sizes and microstructure during high-temperature processing. The study finds that films of high-aspect-ratio FePt grains with well-formed silicon oxide (SiOx) grain boundaries require the grading of the deposition temperature during film growth as well as the grading of the silicon oxide concentration. Well-isolated columnar grains of $\mathrm{L1_0-FePt}$ with an average height greater than 11 nm and diameters less than 7 nm have been achieved. Transmission electron microscopy (TEM) analysis of the microstructures of samples produced under a variety of non-optimal conditions is presented to show how the microstructure of the films depends on each of the sputtering parameters.
description: 17 pages, 7 figures, first published in joint MMM-intermag 2022
Additional file 6 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 6. Day 0 OPLS-DA model goodness of fit, predictive ability and model significance in both VITdAL-ICU and RoCI Cohorts. R2 and Q2 quality metrics, the permutation diagnostics and overall model significance are presented.
How entropy and hydrodynamics cooperate in rectifying particle transport
Creators: name: Martens, S.
name: Schmid, G.
name: Straube, A. V.
name: Schimansky-Geier, L.
name: Hänggi, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using the analytical Fick-Jacobs approximation formalism and extensive Brownian dynamics simulations we study particle transport through two-dimensional periodic channels with triangularly shaped walls. Directed motion is caused by the interplay of constant bias acting along the channel axis and a pressure-driven flow. In particular, we analyze the particle mobility and the effective diffusion coefficient. The mechanisms of entropic rectification is revealed in channels with a broken spatial reflection symmetry in presence of hydrodynamically enforced entropic trapping. Due to the combined action of the forcing and the pressure-driven flow field, efficient rectification with a drastically reduced diffusivity is achieved.
description: 11 pages, 7 figures
Additional file 7 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 7. Highlighted Significantly Different Metabolites with increased N-formylmethionine abundance in the VITdAL-ICU Cohort at day 0.
Additional file 2 of Effect of high-intensity interval training on aerobic capacity and fatigue among patients with prostate cancer: a meta-analysis
Creators: name: Chang, Ming
name: Wang, Junguo
name: Hashim, Hairul A.
name: Xie, Shihao
name: Malik, Adam A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2. Search strategy.
SAÚDE MENTAL DOS PROFISSIONAIS DA SAÚDE MEDIANTE A PANDEMIA
Creators: name: Eva Cássia Farias da Silva, Farias da Silva
name: Daniela Soares Rodrigues, Soares Rodrigues
name: Cleusa Joana de Lima Martins, de Lima Martins
name: Ana Cláudia, de Faria Lima
name: Bianca Christofoli Freitas Queiroz, Freitas Queiroz
name: Eloíza Romeiro Cunha, Romeiro Cunha
name: Kaio José Silva Maluf Franco, Silva Maluf Franco
name: Tales Gabriel Barros e Bittencourt, Barros e Bittencourt
name: Márcio Marino Navas Filho, Navas Filho
name: Vânia Gomes Cardoso, Gomes Cardoso
name: Cláudia Ribeiro de Lima, Ribeiro de Lima
name: Cláudia Ribeiro de Lima, Ribeiro de Lima
Publisher: name: Zenodo
Year: 2023
Subjects: COVID-19; Estresse; Psicoterapia.

description: Em 2020, o mundo vivenciou o início de uma pandemia sem precedentes, com a descoberta de uma nova síndrome respiratória aguda, altamente infecciosa, provocada pelo novo coronavírus, o qual havia sido detectado em dezembro de 2019, na China. Assim, considerando esse cenário, é que a presente pesquisa tem como temática a saúde mental, voltando-se para o profissional da saúde em meio à pandemia. O problema de pesquisa foi estabelecido a partir da seguinte questão: quais as situações estressantes podem levar os profissionais da saúde a desenvolverem sofrimento mental e de que forma o psicólogo pode auxiliar nesse processo? Considerando o problema, o objetivo do estudo foi refletir sobre as implicações na saúde mental dos profissionais de saúde na pandemia. Por sua vez, os objetivos específicos foram: citar os principais impactos da pandemia na saúde mental dos profissionais de saúde e identificar as possíveis intervenções psicológicas diante da pandemia dos profissionais de saúde. Para que o estudo sobre a saúde mental dos profissionais da saúde pudesse ser realizado, optou-se por pesquisa bibliográfica, a qual se fundamentou em artigos, dissertações, livros e outros textos científicos cuja temática se voltou também para a mesma proposta na pesquisa. Foram utilizados estudos da FIOCRUZ (Fundação Osvaldo Cruz), da OMS (Organização Mundial da Saúde), bem como os de Faquineti (2020), Faro (2020) e Danzmann (2020), os quais versaram sobre a Covid-19 e seus impactos na saúde mental do profissional.
Splitting of the Zero-Energy Landau Level and Universal Dissipative Conductivity at Critical Points in Disordered Graphene
Creators: name: Ortmann, Frank
name: Roche, Stephan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on robust features of the longitudinal conductivity ($σ_{xx}$) of the graphene zero-energy Landau level in presence of disorder and varying magnetic fields. By mixing an Anderson disorder potential with a low density of sublattice impurities, the transition from metallic to insulating states is theoretically explored as a function of Landau-level splitting, using highly efficient real-space methods to compute the Kubo conductivities (both $σ_{xx}$ and Hall $σ_{xy}$). As long as valley-degeneracy is maintained, the obtained critical conductivity $σ_{xx}\simeq 1.4 e^{2}/h$ is robust upon disorder increase (by almost one order of magnitude) and magnetic fields ranging from about 2 to 200 Tesla. When the sublattice symmetry is broken, $σ_{xx}$ eventually vanishes at the Dirac point owing to localization effects, whereas the critical conductivities of pseudospin-split states (dictating the width of a $σ_{xy}=0$ plateau) change to $σ_{xx}\simeq e^{2}/h$, regardless of the splitting strength, superimposed disorder, or magnetic strength. These findings point towards the non dissipative nature of the quantum Hall effect in disordered graphene in presence of Landau level splitting.
Nonequilibrium mode-coupling theory for uniformly sheared underdamped systems
Creators: name: Suzuki, Koshiro
name: Hayakawa, Hisao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Mode-coupling theory for uniformly sheared underdamped systems with an isothermal condition is presented. As a result of the isothermal condition, it is shown that the shear stress exhibits significant relaxation at the alpha-relaxation regime due to the cooling effect which is accompanied by the growth of the current fluctuation. This indicates that nonequilibrium underdamped MCT is not equivalent to the corresponding overdamped MCT, even at long time-scales after the early stage of the beta relaxation. It is verified that the effect of correlations to the density-current modes is, however, negligible in sheared thermostated underdamped systems.
description: 8 pages, 3 figures, to appear in Slow Dynamics in Complex Systems 2012 (AIP Conference Proceedings, 2013)
Fusion of Critical Defect Lines in the 2D Ising Model
Creators: name: Bachas, Costas
name: Brunner, Ilka
name: Roggenkamp, Daniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two defect lines separated by a distance delta look from much larger distances like a single defect. In the critical theory, when all scales are large compared to the cutoff scale, this fusion of defect lines is universal. We calculate the universal fusion rule in the critical 2D Ising model and show that it is given by the Verlinde algebra of primary fields, combined with group multiplication in O(1,1)/Z_2. Fusion is in general singular and requires the subtraction of a divergent Casimir energy.
description: 17 pages
Dynamical 3-Space Gravitational Waves: Reverberation Effect
Creators: name: Cahill, Reginald T.
name: Deane, Samuel T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Gravity theory missed a key dynamical process that became apparent only when expressed in terms of a velocity field, instead of the Newtonian gravitational acceleration field. This dynamical process involves an additional self-interaction of the dynamical 3-space, and experimental data reveals that its strength is set by the fine structure constant, implying a fundamental link between gravity and quantum theory. The dynamical 3-space has been directly detected in numerous light-speed anisotropy experiments. Quantum matter has been shown to exhibit an acceleration caused by the time-dependence and inhomogeneity of the 3-space flow, giving the first derivation of gravity from a deeper theory, as a quantum wave refraction effect. EM radiation is also refracted in a similar manner. The anisotropy experiments have all shown 3-space wave/turbulence effects, with the latest revealing the fractal structure of 3-space. Here we report the prediction of a new effect, namely a reverberation effect, when the gravitational waves propagate in the 3-space inflow of a large mass. This effect arises from the non-linear dynamics of 3-space. These reverberations could offer an explanation for the Shnoll effect, in which cosmological factors influence stochastic processes, such as radioactive decay rates.
description: 3 pages, 2 figures
Varying coefficient model for modeling diffusion tensors along white matter tracts
Creators: name: Yuan, Ying
name: Zhu, Hongtu
name: Styner, Martin
name: Gilmore, John H.
name: Marron, J. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Diffusion tensor imaging provides important information on tissue structure and orientation of fiber tracts in brain white matter in vivo. It results in diffusion tensors, which are $3\times3$ symmetric positive definite (SPD) matrices, along fiber bundles. This paper develops a functional data analysis framework to model diffusion tensors along fiber tracts as functional data in a Riemannian manifold with a set of covariates of interest, such as age and gender. We propose a statistical model with varying coefficient functions to characterize the dynamic association between functional SPD matrix-valued responses and covariates. We calculate weighted least squares estimators of the varying coefficient functions for the log-Euclidean metric in the space of SPD matrices. We also develop a global test statistic to test specific hypotheses about these coefficient functions and construct their simultaneous confidence bands. Simulated data are further used to examine the finite sample performance of the estimated varying coefficient functions. We apply our model to study potential gender differences and find a statistically significant aspect of the development of diffusion tensors along the right internal capsule tract in a clinical study of neurodevelopment.
description: Published in at http://dx.doi.org/10.1214/12-AOAS574 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Thalictrum rotundifolium L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: G. rotundifolium L. Cat. 59. 1: Miéville (Coquoz); Gueuroz (idem); Salvan (J.); Collonges (Gams). - 2: Corin (J.); Kippel (J.). - 3: Charrat (Closuit); Les Pontis (Sulger); Vissoie-Grimentz (J.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Numerical study of the nonequilibrium dynamics of 1-D electron-phonon systems using a local basis optimization
Creators: name: Brockt, Christoph
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2018
Subjects: subject: time-evolving block-decimation
subject: one-dimensional systems
subject: electron-phonon systems
subject: Holstein model
subject: scattering
subject: Eindimensionale Systeme
subject: Elektron-Phonon Systeme
subject: Holstein Modell
subject: Streuung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In this dissertation a newly developed numerical method is presented, which is optimized for the time evolution of one-dimensional lattice systems with large local Hilbert spaces. This method extends the time-evolving block-decimation (TEBD) to include a local basis optimization (LBO), which has already been successfully combined with ground state methods. The algorithm is based on matrix product states (MPS), which can represent the quantum state of a one-dimensional chain in most cases with a number of parameters, that is not exponentially increasing with the chain length. The LBO causes a reduction of the simulation times that is linear in the bond dimension of the MPS. To demonstrate the advantages of this method, we apply the TEBD-LBO to electron-phonon (e-p) systems. In this thesis these are described by the Holstein model, which goes beyond semi-classical approximations and covers the full quantum statistics of the phonons. The understanding of the nonequilibrium dynamics of charge carriers coupled to lattice vibrations is of great importance for research areas like transport through quasi one-dimensional conductors, photo-generated phase transitions and time-resolved spectroscopy. First, the energy transfer from a highly excited electron to the phononic degrees of freedom on a small chain is studied. In the various parameter regimes different types of relaxation occur. In any case, after a certain time the system reaches a state, where on average no energy is exchanged between the electron and phonons. This can either mean a constant kinetic energy or oscillations with a constant amplitude and frequency. Next, long perfectly conducting leads without coupling to phonons were attached on both sides of the small chain. In the left lead an electron with density distribution in the shape of a Gaussian wave packet is injected with momentum towards the e-p coupled structure in the middle. This structure acts as an impurity in an otherwise perfectly conducting chain. The investigation shows resonance effects in the transmission and reflection at this impurity. Further, the electron can transfer a part of its energy permanently to the phonons, which results in a reduction of the velocity. Finally, two mechanisms are presented that lead to self-trapping of the electron on the e-p coupled structure.
Discrete Robust Control of Robot Manipulators using an Uncertainty and Disturbance Estimator
Creators: name: Padmanabhan, Ram
name: Shetty, Maithili
name: Chandar, T. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This article presents the design of a robust observer based on the discrete-time formulation of Uncertainty and Disturbance Estimator (UDE), a well-known robust control technique, for the purpose of controlling robot manipulators. The design results in a complete closed-loop, robust, controller--observer structure. The observer incorporates the estimate of the overall uncertainty associated with the plant, in order to mimic its dynamics, and the control law is generated using an auxiliary error instead of state tracking error. A detailed qualitative and quantitative stability analysis is provided, and simulations are performed on the two-link robot manipulator system. Further, a comparative study with well-known control strategies for robot manipulators is presented. The results demonstrate the efficacy of the proposed technique, with better tracking performance and lower control energy compared to other strategies.
description: 20 pages, 7 figures, 1 table
Interessenentwicklung von Kindern aus soziokulturell benachteiligten Familien im Übergang vom Kindergarten zur Schule
Creators: name: Lichtblau, Michael
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Interest development
subject: socio-cultural disadvantage
subject: Interessenentwicklung
subject: soziokulturelle Benachteiligung
subject: Transition
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: [no abstract]
Navigieren in urbanen Landschaften : entwerfendes Kartieren als Navigationsstrategie
Creators: name: Langner, Sigrun
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Urban landscapes
subject: large scale landscape design
subject: navigating design
subject: designing-mapping
subject: Urbane Landschaften
subject: großräumiges Landschaftsentwerfen
subject: navigatorisches Entwerfen
subject: entwerfendes Kartieren
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: [no abstract]
Search for transient gravitational waves in coincidence with short-duration radio transients during 2007-2013
Creators: name: Abbott, B.P.
name: Allen, Bruce
name: Aufmuth, Peter
name: Bisht, A.
name: Danzmann, Karsten
name: Denker, T.
name: Heurs, M.
name: Kaufer, S.
name: Krueger, C.
name: Lough, J.D.
name: Lück, Harald
name: Sawadsky, A.
name: Schütte, D.
name: Steinmeyer, D.
name: Vahlbruch, H.
name: Willke, Benno
name: Wimmer, M.H.
name: Wittel, H.
name: Et Al.
name: LIGO Scientific Collaboration
name: Collaboration, Virgo
Publisher: name: College Park, MD : American Physical Society
Year: 2016
Subjects: subject: Gravitational waves
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present an archival search for transient gravitational-wave bursts in coincidence with 27 single-pulse triggers from Green Bank Telescope pulsar surveys, using the LIGO, Virgo, and GEO interferometer network. We also discuss a check for gravitational-wave signals in coincidence with Parkes fast radio bursts using similar methods. Data analyzed in these searches were collected between 2007 and 2013. Possible sources of emission of both short-duration radio signals and transient gravitational-wave emission include starquakes on neutron stars, binary coalescence of neutron stars, and cosmic string cusps. While no evidence for gravitational-wave emission in coincidence with these radio transients was found, the current analysis serves as a prototype for similar future searches using more sensitive second-generation interferometers. © 2016 The American Physical Society
Models with three Higgs doublets in the triplet representations of A4 or S4
Creators: name: Felipe, R. Gonzalez
name: Serodio, H.
name: Silva, Joao P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the quark sector of theories containing three scalar SU(2)_L doublets in the triplet representation of A4 (or of S4) and three generations of quarks in arbitrary A4 (or S4) representations. We show that, for all possible choices of quark field representations and for all possible alignments of the Higgs vacuum expectation values that can constitute global minima of the scalar potential, it is not possible to obtain simultaneously non-vanishing quark masses and a non-vanishing CP-violating phase in the CKM quark mixing matrix. As a result, in this minimal form, models with three scalar fields in the triplet representation of A4 or of S4 cannot be extended to the quark sector in a way consistent with experiment.
description: 7 pages; references added and detailed physical constraints included
Uncertainty of the coefficient of band-to-band absorption of crystalline silicon at near-infrared wavelengths
Creators: name: Schinke, Carsten
name: Bothe, Karsten
name: Peest, Peter Christian
name: Schmidt, Jan
name: Brendel, Rolf
Publisher: name: College Park, MD : American Institute of Physics
Year: 2014
Subjects: subject: Physical properties
subject: Physics
subject: Crystalline silicons
subject: Measurement uncertainty analysis
subject: Near-infrared wavelength
subject: Photoluminescence measurements
subject: Relative uncertainty
subject: Spectral response measurements
subject: Wavelength ranges
subject: Uncertainty analysis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present data of the coefficient of band-to-band absorption of crystalline silicon at 295 K in the wavelength range from 950 to 1350 nm and analyze its uncertainty. The data is obtained from measurements of reflectance and transmittance as well as spectrally resolved photoluminescence measurements and spectral response measurements. A rigorous measurement uncertainty analysis based on an extensive characterization of our setups is carried out. We determine relative uncertainties of 4% at 1000 nm, increasing to 22% at 1200 nm and 160% at 1300 nm, and show that all methods yield comparable results. © 2014 AIP Publishing LLC.
Electronic correlations and universal long-range scaling in kagome metals
Creators: name: Di Sante, Domenico
name: Kim, Bongjae
name: Hanke, Werner
name: Wehling, Tim
name: Franchini, Cesare
name: Thomale, Ronny
name: Sangiovanni, Giorgio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the real-space profile of effective Coulomb interactions in correlated kagome materials. By particularizing to KV$_3$Sb$_5$, Co$_3$Sn$_2$S$_2$, FeSn, and Ni$_3$In, we analyze representative cases that exhibit a large span of correlation-mediated phenomena, and contrast them to prototypical prevoskite transition metal oxides. From our constrained random phase approximation studies we find that the on-site interaction strength in kagome metals not only depends on the screening processes at high energy, but also on the low-energy hybriziation profile of the electronic density of states. Our results indicate that rescaled by the onsite interaction amplitude, all kagome metals exhibit a universal long-range Coulomb behaviour.
description: 7 pages, 3 figures
Local error estimates for adaptive simulation of the Reaction-Diffusion Master Equation via operator splitting
Creators: name: Hellander, Andreas
name: Lawson, Michael
name: Drawert, Brian
name: Petzold, Linda
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The efficiency of exact simulation methods for the reaction-diffusion master equation (RDME) is severely limited by the large number of diffusion events if the mesh is fine or if diffusion constants are large. Furthermore, inherent properties of exact kinetic-Monte Carlo simulation methods limit the efficiency of parallel implementations. Several approximate and hybrid methods have appeared that enable more efficient simulation of the RDME. A common feature to most of them is that they rely on splitting the system into its reaction and diffusion parts and updating them sequentially over a discrete timestep. This use of operator splitting enables more efficient simulation but it comes at the price of a temporal discretization error that depends on the size of the timestep. So far, existing methods have not attempted to estimate or control this error in a systematic manner. This makes the solvers hard to use for practitioners since they must guess an appropriate timestep. It also makes the solvers potentially less efficient than if the timesteps are adapted to control the error. Here, we derive estimates of the local error and propose a strategy to adaptively select the timestep when the RDME is simulated via a first order operator splitting. While the strategy is general and applicable to a wide range of approximate and hybrid methods, we exemplify it here by extending a previously published approximate method, the Diffusive Finite-State Projection (DFSP) method, to incorporate temporal adaptivity.
Additional file 9 of Circulating N-formylmethionine and metabolic shift in critical illness: a multicohort metabolomics study
Creators: name: Sigurdsson, Martin Ingi
name: Kobayashi, Hirotada
name: Amrein, Karin
name: Nakahira, Kiichi
name: Rogers, Angela J.
name: Pinilla-Vera, Mayra
name: Baron, Rebecca M.
name: Fredenburgh, Laura E.
name: Lasky-Su, Jessica A.
name: Christopher, Kenneth B.
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 9. Metabolites significantly changed with increased N-formylmethionine abundance in the VITdAL-ICU Cohort over days 0, 3 and 7.
Heat superdiffusion in plasmonic nanostructure networks
Creators: name: Ben-Abdallah, Philippe
name: Messina, Riccardo
name: Biehs, Svend-Age
name: Tschikin, Maria
name: Joulain, Karl
name: Henkel, Carsten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Heat-transport mechanism mediated by near-field interactions in plasmonic nanostructures networks is shown to be analogous to a generalized random-walk process. Existence of superdiffusive regimes is demonstrated both in linear ordered chains and in three dimensional random networks by analyzing the asymptotic behavior of the corresponding probability distribution function. We show that the spread of heat in these networks is described by a type of Lévy flight. The presence of such anomalous heat transport regimes in plasmonic networks opens the way to the design of a new generation of composite materials able to transport heat faster than the normal diffusion process in solids.
description: 5 pages, 2 figures
title: Двигательная активность плода и морфологические особенности ткани плаценты у пациенток с ранней и поздней преэклампсией
title: Fetal Motor Activity and Morphological Features of Placental Tissue in Patients with Early and Late Preeclampsia
Creators: name: Белоцерковцева, Лариса Дмитриевна
name: Васечко, Татьяна Михайловна
name: Мордовина, Инна Игоревна
name: Мурзаева, Айгуль Зайнутдиновна
name: Синюкова, Татьяна Александровна
Publisher: name: Издательский центр СурГУ
Year: 2023

description: Цель – изучить особенности двигательной активности плода и типичные патоморфологические
различия последов у женщин с ранней и поздней преэклампсией, проживающих в районах, приравненных к условиям Крайнего Севера (ХМАО-Югра). Проведен анализ 385 историй родов пациенток по группам (131 пациентки с ранним началом преэклампсии (до 34 недель), 144 пациенток – с поздним началом преэклампсии (после
34 недель) и 110 условно здоровых пациенток с физиологическим течением беременности), и анализ двигательной активности плода и морфологических исследований последов. У пациенток с ранней преэклампсией
статистически значимо чаще выявлялось снижение двигательной активности плода при применении субъективных и объективных методов подсчета движений и чаще наблюдали нарушение созревания ворсин хориона,
хорангиоз, инфаркты и псевдоинфаркты плаценты. При раннем и позднем начале преэклампсии преобладало
восходящее инфицирование плаценты.
description: The study aims to analyze the features of fetal motor activity and afterbirths’ common pathomorphological differences in women with early and late preeclampsia living in areas equated to the conditions of the Far North (Khanty-Mansi Autonomous Okrug – Ugra). The study examined 385 labor cases of patients who were
classified as follows: 131 patients with early onset of preeclampsia (up to 34 weeks), 144 patients with late onset
of preeclampsia (after 34 weeks), and 110 apparently healthy patients with the physiological course of pregnancy.
The analysis of fetal motor activity and morphological studies of the afterbirths was carried out. When applying
subjective and objective fetal movements counting methods, patients with early preeclampsia had statistically
significantly lower fetal motor activity and more cases of chorionic villous maturation disorder, chorangiosis, myocardial infarctions, and placental pseudoinfarctions. Ascending infection of the placenta prevails in both early and
late-onset preeclampsia.
title: Vorträge und Forschungen: Sonderbände, Vol 11 (1977): Berent Schwineköper: Königtum und Städte bis zum Ende des Investiturstreits
Creators: name: Vorträge Und Forschungen: Sonderbände
Publisher: name: University Library Heidelberg
Year: 2015

description: Die Politik der Ottonen und Salier gegenüber den werdenden Städten im östlichen Sachsen und in Nordthüringen
description: Die Politik der Ottonen und Salier gegenüber den werdenden Städten im östlichen Sachsen und in Nordthüringen
description: Königtum und Städte bis zum Ende des Investiturstreits. Die Politik der Ottonen und Salier gegenüber den werdenden Städten im östlichen Sachsen und in Nordthüringen
Comparing Gaseous and Stellar Orbits in a Spiral Potential
Creators: name: Gómez, Gilberto C.
name: Pichardo, Bárbara
name: Martos, Marco A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is generally assumed that gas in a galactic disk follows closely non self-intersecting periodic stellar orbits. In order to test this common assumption, we have performed MHD simulations of a galactic-like disk under the influence of a spiral galactic potential. We also have calculated the actual orbit of a gas parcel and compared it to stable periodic stellar orbits in the same galactic potential and position. We found that the gaseous orbits approach periodic stellar orbits far from the major orbital resonances only. Gas orbits initialized at a given galactocentric distance but at different azimuths can be different, and scattering is conspicuous at certain galactocentric radii. Also, in contrast to the stellar behaviour, near the 4:1 (or higher order) resonance the gas follows nearly circular orbits, with much shorter radial excursions than the stars. Also, since the gas does not settle into a steady state, the gaseous orbits do not necessarily close on themselves.
description: 8 pages, accepted for publication in MNRAS
Additional file 1 of Development and validation of personalised risk prediction models for early detection and diagnosis of primary liver cancer among the English primary care population using the QResearch® database: research protocol and statistical analysis plan
Creators: name: Liao, Weiqi
name: Jepsen, Peter
name: Coupland, Carol
name: Innes, Hamish
name: Matthews, Philippa C.
name: Campbell, Cori
name: Barnes, Eleanor
name: Hippisley-Cox, Julia
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Additional file 1. Co-investigators and members in the DeLIVER consortium.
Additional file 1 of Implementation barriers and enablers of midwifery group practice for vulnerable women: a qualitative study in a tertiary urban Australian health service
Creators: name: Smith, Patricia A
name: Kilgour, Catherine
name: Rice, Deann
name: Callaway, Leonie K
name: Martin, Elizabeth K
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Supplementary Material 1
Spin noise spectroscopy in GaAs
Creators: name: Oestreich, Michael
name: Römer, M.
name: Haug, Rolf J.
name: Hägele, D.
Publisher: name: College Park, MD : American Physical Society
Year: 2005
Subjects: subject: Electron spins
subject: Electron-spin relaxation
subject: Noise spectrum
subject: Spin noise spectroscopy
subject: Electrons
subject: Molecular dynamics
subject: Poisson distribution
subject: Relaxation processes
subject: Spectroscopic analysis
subject: Semiconducting gallium arsenide
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We observe the noise spectrum of electron spins in bulk GaAs by Faraday-rotation noise spectroscopy. The experimental technique enables the undisturbed measurement of the electron-spin dynamics in semiconductors. We measure exemplarily the electron-spin relaxation time and the electron Landé g factor in n-doped GaAs at low temperatures and find good agreement of the measured noise spectrum with a theory based on Poisson distribution probability. © 2005 The American Physical Society.