cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Standard Relations of Multiple Polylogarithm Values at Roots of Unity
Creators: name: Zhao, Jianqiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M06, 33B30

description: Let $N$ be a positive integer. In this paper we shall study the special values of multiple polylogarithms at $N$th roots of unity, called multiple polylogarithm values (MPVs) of level $N$. These objects are generalizations of multiple zeta values and alternating Euler sums, which was studied by Euler, and more recently, many mathematicians and theoretical physicists.. Our primary goal in this paper is to investigate the relations among the MPVs of the same weight and level by using the regularized double shuffle relations, regularized distribution relations, lifted versions of such relations from lower weights, and seeded relations which are produced by relations of weight one MPVs. We call relations from the above four families \emph{standard}. Let $d(w,N)$ be the $\Q$-dimension of $\Q$-span of all MPVs of weight $w$ and level $N$. Then we obtain upper bound for $d(w,N)$ by the standard relations which in general are no worse or no better than the one given by Deligne and Goncharov depending on whether $N$ is a prime-power or not, respectively, except for 2- and 3-powers, in which case standard relations seem to be often incomplete whereas Deligne shows that their bound should be sharp by a variant of Grothedieck's period conjecture. This suggests that in general there should be other linear relations among MPVs besides the standard relations, some of which are written down in this paper explicitly with good numerical verification. We also provide a few conjectures which are supported by our computational evidence.
description: By numerical computation we propose more non-standard relations
Thermal transport in two-dimensional C3N/C2N superlattices: A molecular dynamics approach
Creators: name: Razzaghi, Leila
name: Khoeini, Farhad
name: Rajabpour, Ali
name: Khalkhali, Maryam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Nanostructured superlattices have been the focus of many researchers due to their physical and manipulatable properties. They aim to find promising materials for new electronic and thermoelectric devices. In the present study, we investigate the thermal conductivity of two-dimensional (2D) C3N/ C2N superlattices using non-equilibrium molecular dynamics. We analyze the dependence of thermal conductivity on the total length, temperature, and the temperature difference between thermal baths for the superlattices. The minimum thermal conductivity and the phonon mean free path at a superlattice period of 5.2 nm are 23.2W/m.K and 24.7 nm, respectively. Our results show that at a specific total length, as the period increases, the number of interfaces decreases, thus the total thermal resistance decreases, and the effective thermal conductivity of the system increases. We found that at long lengths (L_x >80 nm), the high-frequency and low-wavelength phonons are scattered throughout the interfaces, while at short lengths, there is a wave interference that reduces the thermal conductivity. The combination of these two effects, i.e., the wave interference and the interface scattering, is the reason for the existence of a minimum thermal conductivity in superlattices.
description: 14 pages, 8 figures
Triquark structure and isospin symmetry breaking in exotic Ds mesons
Creators: name: Yasui, S.
name: Oka, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The color anti-triplet triquark $q\bar{q}\bar{q}$ is considered as a compact component in the tetraquark structure $cq\bar{q}\bar{q}$ of exotic $D_{s}$ mesons. We discuss the mass spectrum and the flavor mixing of the triquarks by using the instanton induced interaction and the one-gluon exchange potentials. As a characteristic property of the triquark, we investigate the isospin violation. It is shown that the flavor $\bar{\bf 3}$ (isosinglet) and $\bf 6$ (isotriplet) states may be strongly mixed and then are identified with $D_{s}(2632)$.
title: The visual processing of speed in two and three dimensions
Creators: name: Lee, Abigail Rachael Ingle
Publisher: name: University of St Andrews
Year: 2020

description: As animals that move in a 3D world and interact with 3D objects, it is very important for our survival that our visual systems provide two- and three-dimensional motion perception. Over 4 experimental chapters, we used psychophysical methods to consider several questions about how the human brain processes speed information in two and three dimensions. In Chapter 2, we investigated whether making three-dimensional motion more realistic than in many previous human vision studies, by adding accelerations on the retina to our stimuli, improved our ability to discriminate speed changes. We found that adding retinal acceleration to our stimuli did not offer performance enhancement. In Chapter 3, we wanted to understand whether monocular or binocular cues were more important for discriminating speed changes for motion in depth. Our results were inconclusive, but the apparent difficulty of the speed change discrimination task led us to compare performance in these tasks to that for speed discrimination: we found speed change discrimination to be more difficult. It is often possible to use distance or duration information for speed discrimination, but not for speed change discrimination, so we also investigated whether participants use speed information for speed discrimination. Participants used a range of cues, and may have changed the cue they used from trial to trial. In Chapter 4, we investigated with novel experimental designs whether participants used speed, distance, duration or a combination of cues to make speed and speed change discrimination judgements. We found participants used speed information alone for both tasks. Finally, in Chapter 5 we considered whether speed change discrimination was difficult because speed information was combined over space or time. Neither combination of speed information across time, or across space, was responsible speed change discrimination difficulty. Overall, our findings contribute to our understanding of speed perception for moving objects.
Additional file 3 of Results on patient-reported outcomes are underreported in summaries of product characteristics for new drugs
Creators: name: Haag, Susanne
name: Junge, Lisa
name: Lotz, Fabian
name: McGauran, Natalie
name: Paulides, Marios
name: Potthast, Regine
name: Kaiser, Thomas
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Figure.Completeness of reporting of PROs in SmPCs: (a) grouped by outcome category, (b) grouped by outcome category and direction of treatment effects (positive effects / negative or no effects)
High nonclassical correlations of large-bandwidth photon pairs generated in warm atomic vapor
Creators: name: Mika, Jaromír
name: Slodička, Lukáš
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Generation of nonclassical light suitable for interaction with atoms corresponds to a crucial goal pursued across the broad quantum optics community. We present the generation of nonclassical photon pairs using the process of spontaneous four-wave mixing in warm atomic vapor with an unprecedentedly high degree of nonclassical photon correlations. We show how the unique combination of excitation of atoms in the proximity of the vapor cell viewport, single excitation laser beam, double-$Λ$ energy level scheme, auxiliary optical pumping, and particular optical filtering setups, allow for the spectral bandwidth of generated nonclassical light fields of up to $560 \pm 20$ MHz and low two-photon noise. We provide a quantitative analysis of particular noise mechanisms which set technological and fundamental limits on the observable photon correlations. The overall technological simplicity of the presented scheme together with the availability of spectrally matched quantum memories implementable with warm atomic vapors promises the feasibility of realization of GHz bandwidth on-demand nonclassical light sources and efficient quantum communication nodes.
description: 9 pages, 3 figures
Additional file 4 of Results on patient-reported outcomes are underreported in summaries of product characteristics for new drugs
Creators: name: Haag, Susanne
name: Junge, Lisa
name: Lotz, Fabian
name: McGauran, Natalie
name: Paulides, Marios
name: Potthast, Regine
name: Kaiser, Thomas
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Table.Examples of dossier assessments with relevant PROs missing in the SmPC
Structure and Evolution of Giant Cells in Global Models of Solar Convection
Creators: name: Miesch, Mark S.
name: Brun, Allan Sacha
name: Derosa, Marc L.
name: Toomre, Juri
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The global scales of solar convection are studied through three-dimensional simulations of compressible convection carried out in spherical shells of rotating fluid which extend from the base of the convection zone to within 15 Mm of the photosphere. Such modelling at the highest spatial resolution to date allows study of distinctly turbulent convection, revealing that coherent downflow structures associated with giant cells continue to play a significant role in maintaining the strong differential rotation that is achieved. These giant cells at lower latitudes exhibit prograde propagation relative to the mean zonal flow, or differential rotation, that they establish, and retrograde propagation of more isotropic structures with vortical character at mid and high latitudes. The interstices of the downflow networks often possess strong and compact cyclonic flows. The evolving giant-cell downflow systems can be partly masked by the intense smaller scales of convection driven closer to the surface, yet they are likely to be detectable with the helioseismic probing that is now becoming available. Indeed, the meandering streams and varying cellular subsurface flows revealed by helioseismology must be sampling contributions from the giant cells, yet it is difficult to separate out these signals from those attributed to the faster horizontal flows of supergranulation. To aid in such detection, we use our simulations to describe how the properties of giant cells may be expected to vary with depth, how their patterns evolve in time, and analyze the statistical features of correlations within these complex flow fields.
description: 22 pages, 16 figures (color figures are low res), uses emulateapj.cls Latex class file, Results shown during a Press release at the AAS meeting in June 2007. Submitted to ApJ
Chemical compositions of five Planck cold clumps
Creators: name: Wakelam, V.
name: Gratier, P.
name: Ruaud, M.
name: Gal, R. Le
name: Majumdar, L.
name: Loison, J. -C.
name: Hickson, K. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims: Interstellar molecules form early in the evolutionary sequence of interstellar material that eventually forms stars and planets. To understand this evolutionary sequence, it is important to characterize the chemical composition of its first steps. Methods: In this paper, we present the result of a 2 and 3 mm survey of five cold clumps identified by the Planck mission. We carried out a radiative transfer analysis on the detected lines in order to put some constraints on the physical conditions within the cores and on the molecular column densities. We also performed chemical models to reproduce the observed abundances in each source using the gas-grain model Nautilus. Results: Twelve molecules were detected: H2CO, CS, SO, NO, HNO, HCO+, HCN, HNC, CN, CCH, CH3OH, and CO. Here, CCH is the only carbon chain we detected in two sources. Radiative transfer analyses of HCN, SO, CS, and CO were performed to constrain the physical conditions of each cloud with limited success. The sources have a density larger than $10^4$ cm$^{-3}$ and a temperature lower than 15 K. The derived species column densities are not very sensitive to the uncertainties in the physical conditions, within a factor of 2. The different sources seem to present significant chemical differences with species abundances spreading over one order of magnitude. The chemical composition of these clumps is poorer than the one of Taurus Molecular Cloud 1 Cyanopolyyne Peak (TMC-1 CP) cold core. Our chemical model reproduces the observational abundances and upper limits for 79 to 83\% of the species in our sources. The "best" times for our sources seem to be smaller than those of TMC-1, indicating that our sources may be less evolved and explaining the smaller abundances and the numerous non-detections. Also, CS and HCN are always overestimated by our models.
description: Accepted for publication in A&A
Heat transfer in circulating fluidized beds
Creators: name: Wu, Richard Lap
Publisher: name: University of British Columbia
Year: 2011

description: Heat transfer in circulating fluidized beds was studied in both a 7.3 m high, 152 x 152 mm square, pilot-scale combustor and a 9.3 m high, 152 mm ID transparent cold model unit. Results were obtained for particles of mean size 171-299 µm at superficial gas velocities from 4 to 9.5 m/s and for solids circulation rates up to 70 kg/m².s. For the combustor, results obtained by using membrane walls and a vertical tube as heat transfer surfaces show a strong influence of the cross-sectional area-averaged suspension density on time-averaged, length-averaged suspension-to-surface heat transfer coefficient. The influence of superficial gas velocity is found to be small. Radiation becomes significant at suspension temperatures higher than 400 C and at low suspension densities. Heat transfer coefficients were also found to vary with the lateral position of the tube. The vertical length of heat transfer surface is shown to be an important parameter, allowing seemingly discrepant published results to be reconciled. For the cold model unit, sudden and dramatic peaks in instantaneous heat transfer coefficients were measured using an instantaneous heat transfer probe. Simultaneous heat transfer and capacitance measurements suggest that these peaks are caused by the arrivals of particle strands at the heat transfer surface. Two-probe heat transfer measurements suggest the existence of a characteristic residence length for the strands at the wall in this column. A proposed heat transfer model, based on an overall core-annulus flow structure in the riser, and periodic formation, movement along the wall, and disintegration of strands in the annulus, gives reasonable agreement with a wide range of published data. It accounts successfully for the effects of heat transfer surface length and particle sizes. However, the effect of the heat transfer surface configuration on the flow pattern of particles must also be taken into account to give improved agreement with experimental data.
Additional file 1 of Long-term trends in blood pressure and hypertension in Russia: an analysis of data from 14 health surveys conducted in 1975–2017
Creators: name: Churilova, Elena
name: Shkolnikov, Vladimir M.
name: Shalnova, Svetlana A.
name: Kudryavtsev, Alexander V.
name: Malyutina, Sofia
name: Nilssen, Odd
name: Laatikainen, Tiina
name: Leon, David A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Plasma Physics
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 1: Supplementary Table S1. Characteristics of surveys included in the analysis. Supplementary Table S2. Methods of blood pressure measurement. Supplementary Table S3. Mean Systolic Blood Pressure (mm Hg) by age, sex and survey adjusted for education. Supplementary Table S4. Mean Diastolic Blood Pressure (mm Hg) by age, sex, and survey adjusted for education. Supplementary Table S5. Percentage of individuals with elevated blood pressure (> = 140/90 mmHg) by age, sex, and survey adjusted for education. Supplementary Table S6. Percentage of individuals with hypertension (BP > =140/90 mmHg or use of medications) by age, sex, and survey adjusted for education.
Additional file 2 of Long-term trends in blood pressure and hypertension in Russia: an analysis of data from 14 health surveys conducted in 1975–2017
Creators: name: Churilova, Elena
name: Shkolnikov, Vladimir M.
name: Shalnova, Svetlana A.
name: Kudryavtsev, Alexander V.
name: Malyutina, Sofia
name: Nilssen, Odd
name: Laatikainen, Tiina
name: Leon, David A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Plasma Physics
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 2: Supplementary Figure S1. Sex difference in the mean SBP in the age group 55–64 (SBP(m) minus SBP(w)) in Russian surveys (mm Hg). Supplementary Figure S2. Sex difference in the mean DBP in the age group 55–64 (DBP(m) minus DBP(f)) in Russian surveys (mm Hg). Supplementary Figure S3. Male to female odds ratio for the elevated blood pressure in the age group 55–64 in Russian surveys. Supplementary Figure S4. Male to female odds ratio for hypertension in the age group 55–64 in Russian surveys.
Visibility Fringe Reduction Due to Noise-Induced Effects: Microscopic Approach to Interference Experiments
Creators: name: Villar, Paula I.
name: Lombardo, Fernando C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Decoherence is the main process behind the quantum to classical transition. It is a purely quantum mechanical effect by which the system looses its ability to exhibit coherent behavior. The recent experimental observation of diffraction and interference patterns for large molecules raises some interesting questions. In this context, we identify possible agents of decoherence to take into account when modeling these experiments and study theirs visible (or not) effects on the interference pattern. Thereby, we present an analysis of matter wave interferometry in the presence of a dynamic quantum environment and study how much the visibility fringe is reduced and in which timescale the decoherence effects destroy the interference of massive objects. Finally, we apply our results to the experimental data reported on fullerenes and cold neutrons.
description: 14 pages, 5 figures. Version to appear in Mod. Phys. B
Additional file 1 of Weighted Cox regression for the prediction of heterogeneous patient subgroups
Creators: name: Madjar, Katrin
name: Rahnenführer, Jörg
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
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

description: Additional file 1: Additional supporting information referenced in the Results Sections: Description of the NSCLC data preprocessing, Supplementary Figures 1-6, Supplementary Tables 1-2).
Matrix Representation of Time-Delay Interferometry
Creators: name: Tinto, Massimo
name: Dhurandhar, Sanjeev
name: Joshi, Prasanna
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Time-Delay Interferometry (TDI) is the data processing technique that cancels the large laser phase fluctuations affecting the one-way Doppler measurements made by unequal-arm space-based gravitational wave interferometers. By taking finite linear combinations of properly time-shifted Doppler measurements, laser phase fluctuations are removed at any time $t$ and gravitational wave signals can be studied at a requisite level of precision. In this article we show the delay operators used in TDI can be represented as matrices acting on arrays associated with the laser noises and Doppler measurements. The matrix formulation is nothing but the group theoretic representation (ring homomorphism) of the earlier approach involving time-delay operators and so in principle is the same. It is shown that the homomorphism is valid generally and we cover all situations of interest. To understand the potential advantages the matrix representation brings, care must be taken by the data analyst to account for the light travel times when linearly relating the one-way Doppler measurements to the laser noises. This is especially important in view of the future gravitational wave projects envisaged. We show that the matrix formulation of TDI results in the cancellation of the laser noises at an arbitrary time $t$ by only linearly combining a finite number of samples of the one-way Doppler data measured at and around time $t$.
description: 11 pages, 2 figures. Accepted for publication in Physical Review D
Additional file 1 of Development of a new score for early mortality prediction in trauma ICU patients: RETRASCORE
Creators: name: Serviá, Luis
name: Llompart-Pou, Juan Antonio
name: Chico-Fernández, Mario
name: Montserrat, Neus
name: Badia, Mariona
name: Barea-Mendoza, Jesús Abelardo
name: Ballesteros-Sanz, María Ángeles
name: Trujillano, Javier
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Screenshots of the web application and the list of variables collected in RETRAUCI.
Additional file 2 of Development of a new score for early mortality prediction in trauma ICU patients: RETRASCORE
Creators: name: Serviá, Luis
name: Llompart-Pou, Juan Antonio
name: Chico-Fernández, Mario
name: Montserrat, Neus
name: Badia, Mariona
name: Barea-Mendoza, Jesús Abelardo
name: Ballesteros-Sanz, María Ángeles
name: Trujillano, Javier
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Figure S2-1. Flow diagram for selection of patients. Figure S2-2: Selection of variables using LASSO (Least Absolute Shrinkage and Selection Operator) binary logistic regression model. Figure S2-3. Performance evaluation of the logistic regression (LR) model. Figure S2-4. Performance evaluation of the TRISS model. Figure S2-5. Performance evaluation of the RETRASCORE model.
Continuously Crossing u=z in the H3+ Boundary CFT
Creators: name: Adorf, Hendrik
name: Flohr, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For AdS boundary conditions, we give a solution of the H3+ two point function involving degenerate field with SL(2)-label b^{-2}/2, which is defined on the full (u,z) unit square. It consists of two patches, one for z
description: version to appear in JHEP - 12 pages now; sign error with impact on some parts of the interpretation fixed; material added to become more self-contained; role of bulk-boundary OPE in section 4 more carefully discussed; 3 references added
Additional file 3 of Development of a new score for early mortality prediction in trauma ICU patients: RETRASCORE
Creators: name: Serviá, Luis
name: Llompart-Pou, Juan Antonio
name: Chico-Fernández, Mario
name: Montserrat, Neus
name: Badia, Mariona
name: Barea-Mendoza, Jesús Abelardo
name: Ballesteros-Sanz, María Ángeles
name: Trujillano, Javier
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Comparative analysis between temporal and random partitions in the selection of variables and calculated coefficients.
The Attractor Mechanism in Gauss-Bonnet Gravity
Creators: name: Anber, Mohamed M.
name: Kastor, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study extremal black hole solutions of D=5 Gauss-Bonnet gravity coupled to a system of gauge and scalar fields. As in Einstein gravity, we find that the values of the scalar fields on the horizon must extremize a certain effective potential that depends on the black hole charges. If the matrix of second derivatives of the effective potential at this extremum has positive eigenvalues, we give evidence, based on a near horizon perturbative expansion, that the attractor mechanism continues to hold in this general class of theories. We numerically construct solutions to a particular simple single scalar field model that display the attractor mechanism over a wide range of asymptotic values for the scalar field. We also numerically construct non-extremal solutions and show that the attractor mechanism fails to hold away from extremality.
description: 15 pages, 3 figures; v2 - references added; v3 - minor revisions, references added
Rigidly rotating dust solutions depending upon harmonic functions
Creators: name: Viaggiu, Stefano
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We write down the relevant field equations for a stationary axially symmetric rigidly rotating dust source in such a way that the general solution depends upon the solution of an elliptic equation and upon harmonic functions. Starting with the dipole Bonnor solution, we built an asymptotically flat solution with two curvature singularities on the rotational axis with diverging mass. Apart from the two point singularities on the axis, the metric is regular everywhere. Finally, we study a non-asymptotically flat solution with NUT charge and a massless ring singularity, but with a well-defined mass-energy expression.
description: typos corrected, final version published in Class. Quantum Grav
Interacting holes in Si and Ge double quantum dots: from a multiband approach to an effective-spin picture
Creators: name: Secchi, Andrea
name: Bellentani, Laura
name: Bertoni, Andrea
name: Troiani, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The states of two electrons in tunnel-coupled semiconductor quantum dots can be effectively described in terms of a two-spin Hamiltonian with an isotropic Heisenberg interaction. A similar description needs to be generalized in the case of holes due to their multiband character and spin-orbit coupling, which mixes orbital and spin degrees of freedom, and splits $J=3/2$ and $J = 1/2$ multiplets. Here we investigate two-hole states in prototypical coupled Si and Ge quantum dots via different theoretical approaches. Multiband $\boldsymbol{k}\cdot\boldsymbol{p}$ and Configuration-Interaction calculations are combined with entanglement measures in order to thoroughly characterize the two-hole states in terms of band mixing and justify the introduction of an effective spin representation, which we analytically derive a from generalized Hubbard model. We find that, in the weak interdot regime, the ground state and first excited multiplet of the two-hole system display -- unlike their electronic counterparts -- a high degree of $J$-mixing, even in the limit of purely heavy-hole states. The light-hole component additionally induces $M$-mixing and a weak coupling between spinors characterized by different permutational symmetries.
description: 17 pages, 5 figures
title: The J-integral for mixed-mode loaded cracks with cohesive zones
Creators: name: Scheel, Johannes
name: Schlosser, Alexander
name: Ricoeur, Andreas
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: J-Integral
subject: crack tip opening displacement
subject: cohesive zones
subject: Griffith crack
subject: Dugdale crack
subject: cohesive potential
subject: 620
subject: Jot Integral
subject: Rissspitze
subject: Bruchmechanik
subject: Dugdale-Riss
subject: Rissbildung

description: Gefördert im Rahmen des Projekts DEAL
The Green function estimates for strongly elliptic systems of second order
Creators: name: Hofmann, Steve
name: Kim, Seick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35A08; 35B45; 35J45

description: We establish existence and pointwise estimates of fundamental solutions and Green's matrices for divergence form, second order strongly elliptic systems in a domain $Ω\subseteq \mathbb{R}^n$, $n \geq 3$, under the assumption that solutions of the system satisfy De Giorgi-Nash type local Hölder continuity estimates. In particular, our results apply to perturbations of diagonal systems, and thus especially to complex perturbations of a single real equation.
description: bibliography corrected
Nonreciprocal electron hydrodynamics under magnetic fields: applications to nonreciprocal surface magnetoplasmons
Creators: name: Sano, Ryotaro
name: Toshio, Riki
name: Kawakami, Norio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments have elucidated that novel nonequilibrium states inherent in the so-called hydrodynamic regime are realized in ultrapure metals with sufficiently strong momentum-conserving scattering. In this letter, we formulate a theory of electron hydrodynamics with broken inversion symmetry under magnetic fields and find that novel terms emerge in hydrodynamic equations which play a crucial role for the realization of the nonreciprocal responses. Specifically, we clarify that there exist a novel type of nonreciprocal collective modes dubbed nonreciprocal surface magnetoplasmons arising from an interplay between magnetic fields and the orbital magnetic moment. We reveal that these nonreciprocal collective modes indeed give rise to the nonreciprocity in magneto-optical responses such as the reflectivity. The physics discussed here will bridge the two important notions of magnetoplasmonics and nonreciprocity in electron hydrodynamic materials with inversion symmetry breaking and magnetic fields.
Additional file 5 of Methodology and demographics of a single blinded, randomized controlled trial of chiropractic compared to physical therapy for balance impairments in community dwelling geriatric patients with or without low back pain
Creators: name: Enix, Dennis E
name: Sudkamp, Kasey L
name: Malmstrom, Theodore K
name: Flaherty, Joseph H
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Authors’ original file for figure 5
Additional file 4 of Methodology and demographics of a single blinded, randomized controlled trial of chiropractic compared to physical therapy for balance impairments in community dwelling geriatric patients with or without low back pain
Creators: name: Enix, Dennis E
name: Sudkamp, Kasey L
name: Malmstrom, Theodore K
name: Flaherty, Joseph H
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Authors’ original file for figure 4
Additional file 6 of Methodology and demographics of a single blinded, randomized controlled trial of chiropractic compared to physical therapy for balance impairments in community dwelling geriatric patients with or without low back pain
Creators: name: Enix, Dennis E
name: Sudkamp, Kasey L
name: Malmstrom, Theodore K
name: Flaherty, Joseph H
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Authors’ original file for figure 6
Temporal fluctuation induced order in conventional superconductors
Creators: name: Foo, Darryl
name: Conduit, Gareth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Communal pairing in superconductors introduces variational freedom for Cooper pairs to share fermions. Temporal oscillations of the superconducting gap entropically drive communal pairing through the order by disorder phenomenology, stabilising a finite momentum space width of the superconducting gap that increases with interaction strength, creating a smooth evolution from the weakly interacting BCS state to the strongly interacting BEC state.
Pelatihan Pengembangan Media Pembelajaran Fisika Berbasis Website Menggunakan Platform Wix pada Materi Gelombang Mekanik di SMA Negeri 5 Takalar
Creators: name: Agus Susanto, Subaer, Muh. Saleh, Karmila Putri, Nur Annisa
Publisher: name: Zenodo
Year: 2024

description: Akibat kemajuan Teknologi Informasi dan Komunikasi (TIK), media pembelajaran saat ini semakin beragam. Penting bagi guru untuk cerdas dalam memilih media yang tepat untuk memudahkan siswa memahami materi yang disampaikan. Namun, pada kenyataannya inovasi dalam media pembelajaran tidak dimanfaatkan secara maksimal dalam proses belajar. Hal tersebut menyebabkan terjadinya kesulitan dalam memahami dan membayangkan konsep fisika yang abstrak dan matematis. Salah satu materi yang dianggap sulit oleh sebagian peserta didik adalah materi gelombang mekanik. Rendahnya pemahaman konsep gelombang mekanik dapat disebabkan oleh beberapa faktor, salah satunya kurangnya partisipasi siswa selama proses pembelajaran berlangsung. Media pembelajaran fisika berupa buku teks, animasi konsep, simulasi sederhana, sampai pada proses evaluasi belajar dapat dikemas menjadi suatu bahan ajar yang dapat di akses melalui website sehingga sangat fleksibel digunakan. Media pembelajaran berbasis website dapat menurunkan suasana yang statis serta dapat menciptakan proses pembelajaran yang efektif, menarik, interaktif dan dapat membangkitkan motivasi belajar siswa. Dalam pembuatan website, platform Wix menjadi alternatif yang sangat cocok. Wix memiliki fitur yang mengumpulkan konten multi bahasa dan memungkinkan penambahan video, dokumen, animasi, dan audio. Berdasarkan hal tersebut maka dilakukan sebuah kegiatan pengabdian pelatihan pembuatan media pembelajaran Fisika berbasis website menggunakan platform Wix pada materi gelombang mekanik di SMA Negeri 5 Takalar. Wix dipilih sebagai platform karena memudahkan akses dan pengaturan pembuatan website tanpa memerlukan pengetahuan dalam pemrograman. Wix juga menyediakan hosting dan domain secara gratis. Selain itu, tampilan dashboard Wix sangat mudah dipahami oleh pengguna, baik untuk posting konten maupun optimasi website.
Electron-phonon coupling and electron self-energy in electron-doped graphene: calculation of angular resolved photoemission spectra
Creators: name: Calandra, Matteo
name: Mauri, Francesco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We obtain analytical expressions for the electron self-energy and the electron-phonon coupling in electron-doped graphene using electron-phonon matrix elements extracted from density functional theory simulations. From the electron self-energies we calculate angle resolved photoemission spectra. We demonstrate that the measured kink at $\approx -0.2$ eV from the Fermi level is actually composed of two features, one at $\approx -0.195$ eV due to the twofold degenerate E$_{2g}$ mode, and a second one at $\approx -0.16$ eV due to the A$_{1}^{'}$ mode. The electron-phonon coupling extracted from the kink observed in ARPES experiments is roughly a factor of 5.5 larger than the calculated one. This disagreement can only be partially reconciled by the inclusion of resolution effects. Indeed we show that a finite resolution increases the apparent electron-phonon coupling by underestimating the renormalization of the electron velocity at energies larger than the kinks positions. The discrepancy between theory and experiments is thus reduced to a factor of $\approx$ 2.2. From the linewidth of the calculated ARPES spectra we obtain the electron relaxation time. A comparison with available experimental data in graphene shows that the electron relaxation time detected in ARPES is almost two orders of magnitudes smaller than what measured by other experimental techniques.
description: 9 pages, 7 figures, see also Matteo Calandra and Francesco Mauri, arXiv:0707.1492
A Bibliometric study of the Literature of Open Science & Open Access
Creators: name: Tsakonas, Giannis
name: Lenis, Sergios
name: Boudourides, Moses
Publisher: name: Zenodo
Year: 2019

description: One of the necessary cultural changes on the way to Open Science is the commitment to its principles. Both the LIBER and LERU Roadmaps underline the importance of adopting consistent and robust practices that exemplify the benefits of Open Science. However, in the past several contradictions have been recorded, like for instance that many readers have encountered access fees on articles that discuss Open Access issues, as those were published in paywalled journals. It is important that every part of the discourse for Open Science to remain open and accessible to anyone who wishes to contribute. Therefore, gradually and steadily, a question is raised: what are the attributes of the literature about Open Access and Open Science? In this paper, we performed a three-tiered micro-analysis study of 2390 publications that focus on Open Science and Open Access, as indexed in Web of Science, in order to see how this literature has developed over the last twenty years. Initially, we were interested in finding how many of these publications were published openly and in which version, namely green, gold or bronze. However, using the open programming language Python, we conducted analyses to further explore the landscape of this literature and we were able to find the key figures that describe its growth rate and several other statistical measures on information, like the main journal venues and authors. We also calculated statistical measures of the types of these publications and whether they were financially supported or not. In the second tier of our analysis, we produced timelines that reflect the temporal progress of authors, journals and descriptors, starting from a time point shortly after the Santa Fe Declaration of Open Access. Finally, in the third tier, we produced networks of entities and performed analyses to identify the main authorship models, which together with other indicators, show if collaboration fosters in this literature and how its main entities are linked together. The study offers a thorough and detailed view on the bibliometric aspects of the “Open” literature conducted by open, transparent and reproducible tools.
He tamariki kokoti tau: Families of indigenous infants talk about their experiences of preterm birth and neonatal intensive care
Creators: name: Adcock, Anna
name: Cram, Fiona
name: Edmonds, L
name: Lawton, Beverley
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: Uncategorized

description: Māori (Indigenous peoples of Aotearoa New Zealand) bear an unequal burden of poor perinatal health outcomes, including preterm birth. An infant arriving preterm disrupts the birth imaginary of whānau (family collectives) and situates them in a foreign health environment that may not be culturally safe and nurturing. A cross-sectional interpretative phenomenological analysis of first interviews with 19 whānau participating in a Kaupapa Māori (by, with, for Māori) qualitative longitudinal study of preterm birth identified themes from their experiences and the mean-ings they attributed to them. Preterm birth was an emotional roller coaster, with the birth imaginary and anticipated roles disrupted as health practitioners took over the care of their infants. Whānau expressed the desire to be close to their infants, holding them, loving them, nurturing them, and emplacing them within whakapapa (genealogy, continual layering of foundations) networks. When health practitioners or hospital policies inhibited this intimacy by isolating, excluding, or discrimi-nating, whānau were frustrated. Being familiar with hospital routines, staff, peers, infant cares, and being wrapped in wider whānau support were key for whānau coping. Whakawhanaungatanga (processes of establishing relationships) create safe spaces for whānau to be themselves. This quiet-ens the ‘storm’ and returns whānau to a sense of calm, through the reclamation of their environment.
Reply to Comment on ``An Improved Experimental Limit on the Electric Dipole Moment of the Neutron''
Creators: name: Baker, C. A.
name: Doyle, D. D.
name: Geltenbort, P.
name: Green, K.
name: van der Grinten, M. G. D.
name: Harris, P. G.
name: Iaydjiev, P.
name: Ivanov, S. N.
name: May, D. J. R.
name: Pendlebury, J. M.
name: Richardson, J. D.
name: Shiers, D.
name: Smith, K. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Authors reply to the Comment of Golub and Lamoreaux. The experimental limit on the neutron electric dipole moment remains unchanged from that previously announced.
Effects of organic acids in inductively coupled plasma optical emission spectroscopy
Creators: name: Hettipathirana, Terrance Dayakantha
Publisher: name: University of British Columbia
Year: 2010

description: The effects of organic acids in an inductively coupled plasma (ICP) have been studied with reference to solvent introduction and plasma excitation conditions. When compared with water, an increase in emission intensity for Mg, Cd, and Zn atom and ion lines is observed when organic acids are present in the sample solution. The presence of organic acids causes an increase in both the efficiency of nebulization and the temperature in the lower region of the central aerosol channel. The feasibility of using a semi-automated flow injection (FI) method to investigate the interference effects of acetic acid over a wide range of analyte and interferent concentration has been studied. This FI-ICP procedure makes use of the concentration gradient formed by the analyte in the FI system. Using this method, a response surface can be constructed quickly and with the preparation of relatively few solutions. The response surface shows the system response (for example, emission intensity) as a function of analyte and interferent concentrations. This FI-ICP procedure can be used to map the interference surface prevalent under any set of experimental conditions.
Can a CNN trained on the Ising model detect the phase transition of the $q$-state Potts model?
Creators: name: Fukushima, Kimihiko
name: Sakai, Kazumitsu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Employing a deep convolutional neural network (deep CNN) trained on spin configurations of the 2D Ising model and the temperatures, we examine whether the deep CNN can detect the phase transition of the 2D $q$-state Potts model. To this end, we generate binarized images of spin configurations of the $q$-state Potts model ($q\ge 3$) by replacing the spin variables $\{0,1,\dots,\lfloor q/2\rfloor-1\}$ and $\{\lfloor q/2\rfloor,\dots,q-1\}$ with $\{0\}$ and $\{1\}$, respectively. Then, we input these images to the trained CNN to output the predicted temperatures. The binarized images of the $q$-state Potts model are entirely different from Ising spin configurations, particularly at the transition temperature. Moreover, our CNN model is not trained on the information about whether phases are ordered/disordered but is naively trained by Ising spin configurations labeled with temperatures at which they are generated. Nevertheless, the deep CNN can detect the transition point with high accuracy, regardless of the type of transition. We also find that, in the high-temperature region, the CNN outputs the temperature based on the internal energy, whereas, in the low-temperature region, the output depends on the magnetization and possibly the internal energy as well. However, in the vicinity of the transition point, the CNN may use more general factors to detect the transition point.
description: 13 pages, v3: minor corrections, published version
Entwurfsmuster für Fahrerlose Transportsysteme
Creators: name: Trenkle, Andreas
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Fahrerlose Transportsysteme
mobile Robotik
Fahrerlose Transportfahrzeuge
FTS
Entwurfsmuster
AGV
AGC
autonomous guided vehicles
design patterns
mobile mobotics

description: Fahrerlose Transportsysteme (FTS) sind eine flexible Alternative zu starrer Fördertechnik. In dieser Arbeit werden Probleme und Lösungsansätze zur Gestaltung von FTS in Form von Entwurfsmustern aufgezeigt. Die Muster betrachten die Themen Modularität, Sicherheit, Mensch-Maschine-Interaktion, Navigation und dezentrale Steuerung. Sie dienen einerseits der Strukturierung von Lösungsansätzen und sind andererseits ein Hilfsmittel zur Entwicklung Fahrerloser Transportsysteme.