cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A fundamental-measure density functional for mixtures of parallel hard cylinders
Creators: name: Martinez-Raton, Yuri
name: Capitan, Jose A.
name: Cuesta, Jose A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain a fundamental measure density functional for mixtures of parallel hard cylinders. To this purpose we first generalize to multicomponent mixtures the fundamental measure functional proposed by Tarazona and Rosenfeld for a one-component hard disk fluid, through a method alternative to the cavity formalism of these authors. We show the equivalence of both methods when applied to two-dimensional fluids. The density functional so obtained reduces to the exact density functional for one-dimensional mixtures of hard rods when applied to one-dimensional profiles. In a second step we apply an idea put forward some time ago by two of us, based again on a dimensional reduction of the system, and derive a density functional for mixtures of parallel hard cylinders. We explore some features of this functional by determining the fluid-fluid demixing spinodals for a binary mixture of cylinders with the same volume, and by calculating the direct correlation functions.
description: 19 pages, 4 figures
Optimal Image Reconstruction in Radio Interferometry
Creators: name: Sutton, Edmund C.
name: Wandelt, Benjamin D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We introduce a method for analyzing radio interferometry data which produces maps which are optimal in the Bayesian sense of maximum posterior probability density, given certain prior assumptions. It is similar to maximum entropy techniques, but with an exact accounting of the multiplicity instead of the usual approximation involving Stirling's formula. It also incorporates an Occam factor, automatically limiting the effective amount of detail in the map to that justified by the data. We use Gibbs sampling to determine, to any desired degree of accuracy, the multi-dimensional posterior density distribution. From this we can construct a mean posterior map and other measures of the posterior density, including confidence limits on any well-defined function of the posterior map.
description: 41 pages, 11 figures. High resolution figures 8 and 9 available at http://www.astro.uiuc.edu/~bwandelt/SuttonWandelt2006
Stable Bloch oscillations and Landau-Zener tunneling in a non-Hermitian $\cal{PT}$-symmetric flat band lattice
Creators: name: Parkavi, J. Ramya
name: Chandrasekar, V. K.
name: Lakshmanan, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This article aims to study the existence of stable Bloch oscillations and Landau-Zener tunneling in a non-Hermitian system when exposed to external fields. We investigate a non-Hermitian $\cal{PT}$-symmetric diamond chain network and its transport dynamics in two different situations, namely in a flat band case and a non-flat band case. The considered system does not support unbroken-$\cal{PT}$ phase or completely real eigenspectra in any of the parametric regions in both the flat and non-flat band cases. In the flat band case, up to a critical value of the gain-loss parameter, the bands are found to be gapless or inseparable, and for other values the bands are isolated. Considering the non-flat band case, all the bands are found to be complex dispersive and are also isolated. In the case of completely broken $\cal{PT}$ phase, we look upon the possibility to have stable dynamics or Bloch oscillations upon the application of external fields like synthetic electric field. In particular, when the complex bands are isolated, we point out that the Landau-Zener tunneling induced by the synthetic electric field can enable Bloch oscillations. The amplitude of these Bloch oscillations is large and persists for a long propagation distance which reveals that super Bloch oscillations can be observed in the broken $\cal{PT}$ phase of the system. We also report the amplified Bloch oscillations which pave the way towards controlling transport phenomena in non-Hermitian systems.
description: Accepted for publication in Phys. Rev. A
Additional file 7 of ARTP/EMS-combined multiple mutagenesis efficiently improved production of raw starch-degrading enzymes in Penicillium oxalicum and characterization of the enzyme-hyperproducing mutant
Creators: name: Gu, Li-Sha
name: Tan, Ming-Zhu
name: Li, Shi-Huan
name: Zhang, Ting
name: Zhang, Qi-Qiang
name: Li, Cheng-Xi
name: Luo, Xue-Mei
name: Feng, Jia-Xun
name: Zhao, Shuai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Table S3. Primers used in this study.
Equilibrium States for Non-uniformly expanding maps
Creators: name: Oliveira, Krerley
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A60, 37D25

description: We construct equilibrium states, including measures of maximal entropy, for a large (open) class of non-uniformly expanding maps on compact manifolds. Moreover, we study uniqueness of these equilibrium states, as well as some of their ergodic properties.
description: 18 pages
On Nichols algebras with generic braiding
Creators: name: Andruskiewitsch, Nicolás
name: Angiono, Iván Ezequiel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37, 16W30

description: We extend the main result of [N. Andruskiewitsch and H.-J. Schneider, A characterization of quantum groups], see math/0201095, to braided vector spaces of generic diagonal type using results of Heckenberger.
description: 17 pages. The second version incorporates some changes suggested by the referee. To appear in "Modules and comodules", Proceedings of a conference dedicated to R. Wisbauer
Treatment Planning System for Electron FLASH Radiotherapy: Open-source for Clinical Implementation
Creators: name: Rahman, Mahbubur
name: Ashraf, M. Ramish
name: Gladstone, David J.
name: Bruza, Petr
name: Jarvis, Lesley A.
name: Schaner, Philip E.
name: Cao, Xu
name: Pogue, Brian W.
name: Hoopes, P. Jack
name: Zhang, Rongxiao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Purpose: A Monte Carlo (MC) beam model and its implementation in a clinical treatment planning system (TPS, Varian Eclipse) are presented for a modified ultra-high dose-rate electron FLASH radiotherapy (eFLASH-RT) LINAC. Methods: The gantry head without scattering foils or targets, representative of the LINAC modifications, was modelled in Geant4. The energy spectrum (σE) and beam source emittance cone angle (θcone) were varied to match the calculated and Gafchromic film measured central-axis percent depth dose (PDD) and lateral profiles. Its Eclipse configuration was validated with measured profiles of the open field and nominal fields for clinical applicators. eFLASH-RT plans were MC forward calculated in Geant4 for a mouse brain treatment and compared to a conventional (Conv-RT) plan in Eclipse for a human patient with metastatic renal cell carcinoma. Results: The beam model and its Eclipse configuration agreed best with measurements at σE=0.5 MeV and θcone=3.9+/-0.2 degrees to clinically acceptable accuracy (the absolute average error was within 1.5% for in-water lateral, 3% for in-air lateral, and 2% for PDD). The forward dose calculation showed dose was delivered to the entire mouse brain with adequate conformality. The human patient case demonstrated the planning capability with routine accessories in relatively complex geometry to achieve an acceptable plan (90% of the tumor volume receiving 95% and 90% of the prescribed dose for eFLASH and Conv-RT, respectively). Conclusion: To the best of our knowledge, this is the first functional beam model commissioned in a clinical TPS for eFLASH-RT, enabling planning and evaluation with minimal deviation from Conv-RT workflow. It facilitates the clinical translation as eFLASH-RT and Conv-RT plan quality were comparable for a human patient. The methods can be expanded to model other eFLASH irradiators.
description: 14 Pages, 6 Figures, 1 Supplementary Material
Questions, predication, Sudanese Arabic, Inchoative, long vowels & smile paradigm, future & progressive
Creators: name: Gerais, Tanutamon
name: Dudek, Brooke
name: Lee, Hyunjin
name: Liang, Siyu
name: Pfiffner, Alexandra
name: Schaffer, Lily
name: Slone, Ares (Sasha)
name: Wyschogrod, Ezra
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: fia

description: Questions includes wh-, yes/no, and echo questions.
Robot Manipulator Control with Inverse Kinematics PD-Pseudoinverse Jacobian and Forward Kinematics Denavit Hartenberg
Creators: name: Agustian, Indra
name: Daratha, Novalio
name: Faurina, Ruvita
name: Suandi, Agus
name: Sulistyaningsih
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents the development of vision-based robotic arm manipulator control by applying Proportional Derivative-Pseudoinverse Jacobian (PD-PIJ) kinematics and Denavit Hartenberg forward kinematics. The task of sorting objects based on color is carried out to observe error propagation in the implementation of manipulator on real system. The objects image captured by the digital camera were processed based on HSV-color model and the centroid coordinate of each object detected were calculated. These coordinates are end effector position target to pick each object and were placed to the right position based on its color. Based on the end effector position target, PD-PIJ inverse kinematics method was used to determine the right angle of each joint of manipulator links. The angles found by PD-PIJ is the input of DH forward kinematics. The process was repeated until the square end effector reached the target. The experiment of model and implementation to actual manipulator were analyzed using Probability Density Function (PDF) and Weibull Probability Distribution. The result shows that the manipulator navigation system had a good performance. The real implementation of color sorting task on manipulator shows the probability of success rate cm is 94.46% for euclidian distance error less than 1.2 cm.
description: The manuscript published in Jurnal Elektronika dan Telekomunikasi (JET), Vol. 21, No. 1, August 2021, pp. 8-18
title: Методы, средства и формы организации профессионального обучения
Creators: name: ELS IPR BOOKS
Publisher: name: Южно-Уральский технологический университет
Year: 2025

description: Учебно-методическое пособие «Методы, средства и формы организации профессионального обучения» представляет собой систематизированный материал, посвященный ключевым аспектам педагогической практики, направленным на оптимизацию и эффективность образовательного процесса. В пособии рассматриваются теоретические и практические подходы к выбору и применению различных методов, средств и форм обучения, а также их взаимосвязь с целями, задачами и условиями педагогической деятельности. Данное учебно-методическое пособие будет полезно преподавателям всех уровней образования, педагогам и студентам вузов, а также специалистам, занимающимся разработкой и внедрением образовательных технологий. Подготовлено на кафедре лингвистики и гуманитарных дисциплин ОУ ВО «Южно-Уральский технологический университет».
Impact of tangled magnetic fields on AGN-blown bubbles
Creators: name: Ruszkowski, M.
name: Ensslin, T. A.
name: Bruggen, M.
name: Heinz, S.
name: Pfrommer, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is growing consensus that feedback from AGN is the main mechanism responsible for stopping cooling flows in clusters of galaxies. AGN are known to inflate buoyant bubbles that supply mechanical power to the intracluster gas (ICM). High Reynolds number hydrodynamical simulations show that such bubbles get entirely disrupted within 100 Myr, as they rise in cluster atmospheres, which is contrary to observations. This artificial mixing has consequences for models trying to quantify the amount of heating and star formation in cool core clusters of galaxies. It has been suggested that magnetic fields can stabilize bubbles against disruption. We perform MHD simulations of fossil bubbles in the presence of tangled magnetic fields using the high order PENCIL code. We focus on the physically-motivated case where thermal pressure dominates over magnetic pressure and consider randomly oriented fields with and without maximum helicity and a case where large scale external fields drape the bubble.We find that helicity has some stabilizing effect. However, unless the coherence length of magnetic fields exceeds the bubble size, the bubbles are quickly shredded. As observations of Hydra A suggest that lengthscale of magnetic fields may be smaller then typical bubble size, this may suggest that other mechanisms, such as viscosity, may be responsible for stabilizing the bubbles. However, since Faraday rotation observations of radio lobes do not constrain large scale ICM fields well if they are aligned with the bubble surface, the draping case may be a viable alternative solution to the problem. A generic feature found in our simulations is the formation of magnetic wakes where fields are ordered and amplified. We suggest that this effect could prevent evaporation by thermal conduction of cold Halpha filaments observed in the Perseus cluster.
description: accepted for publication in MNRAS, (downgraded resolution figures, color printing recommended)
Losses in interacting quantum gases: ultra-violet divergence and its regularization
Creators: name: Bouchoule, Isabelle
name: Dubois, Léa
name: Barbier, Léo-Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the effect of losses on an interacting quantum gas. We show that, for gases in dimension higher than one, assuming together a vanishing correlation time of the reservoir where dissipation occurs, and contact interactions leads to a divergence of the energy increase rate. This divergence is a combined effect of the contact interactions, which impart arbitrary large momenta to the atoms, and the infinite energy width of the reservoir associated to its vanishing correlation time. We show how the divergence is regularized when taking into account the finite energy width of the reservoir, and, for large energy width, we give an expression for the energy increase rate that involves the contact parameter. We then consider the specific case of a weakly interacting Bose Einstein condensate, that we describe using the Bogoliubov theory. Assuming slow losses so that the gas is at any time described by a thermal equilibrium, we compute the time evolution of the temperature of the gas. Using a Bogoliubov analysis, we also consider the case where the regularization of the divergence is due to the finite range of the interaction between atoms.
description: 5 pages + appendices
Nominal Logic Programming
Creators: name: Cheney, James
name: Urban, Christian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.1.6; F.3.2; F.4.1

description: Nominal logic is an extension of first-order logic which provides a simple foundation for formalizing and reasoning about abstract syntax modulo consistent renaming of bound names (that is, alpha-equivalence). This article investigates logic programming based on nominal logic. We describe some typical nominal logic programs, and develop the model-theoretic, proof-theoretic, and operational semantics of such programs. Besides being of interest for ensuring the correct behavior of implementations, these results provide a rigorous foundation for techniques for analysis and reasoning about nominal logic programs, as we illustrate via examples.
description: 46 pages; 19 page appendix; 13 figures. Revised journal submission as of July 23, 2007
Rank $Q$ E-String on Spheres with Flux
Creators: name: Hwang, Chiung
name: Razamat, Shlomo S.
name: Sabag, Evyatar
name: Sacchi, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider compactifications of rank $Q$ E-string theory on a genus zero surface with no punctures but with flux for various subgroups of the $\text{E}_8\times \text{SU}(2)$ global symmetry group of the six dimensional theory. We first construct a simple Wess-Zumino model in four dimensions corresponding to the compactification on a sphere with one puncture and a particular value of flux, the cap model. Using this theory and theories corresponding to two punctured spheres with flux, one can obtain a large number of models corresponding to spheres with a variety of fluxes. These models exhibit interesting IR enhancements of global symmetry as well as duality properties. As an example we will show that constructing sphere models associated to specific fluxes related by an action of the Weyl group of $\text{E}_8$ leads to the S-confinement duality of the $\text{USp}(2Q)$ gauge theory with six fundamentals and a traceless antisymmetric field. Finally, we show that the theories we discuss possess an $\text{SU}(2)_{\text{ISO}}$ symmetry in four dimensions that can be naturally identified with the isometry of the two-sphere. We give evidence in favor of this identification by computing the `t Hooft anomalies of the $\text{SU}(2)_{\text{ISO}}$ in 4d and comparing them with the predicted anomalies from 6d.
description: 57 pages, 6 figures; v2: a few minor changes, published in SciPost Phys
Lepton flavor violating semileptonic $τ$ decays $τ\to lP(V)$ in a topcolor scenario
Creators: name: Yue, Chong-Xing
name: Wang, Li-Hong
name: Ma, Wei
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The contributions of the neutral top-pion $π_{t}^{0}$ and the non-universal gauge boson $Z'$ predicted by topcolor scenario to the lepton flavor violating $(LFV)$ semileptonic $τ$ decays $τ\to lP(V)$ $(P=π^{0}, η, η' $ and $ V=ρ^{0}, ϕ)$ are discussed. We find that the contributions of $Z'$ to these decay processes are generally larger than those from $π_{t}^{0}$. $π_{t}^{0}$ can only make the value of the branching ratio $Br(τ\to lP)$ in the range of 1$\times10^{-11}$ $\sim$ 1$\times10^{-16}$, which is far below the sensitivity of foreseeable experiments. With reasonable values of the free parameters, the non-universal gauge boson $Z'$ can make the value of the branching ratio $Br(τ^{-}\to μ^{-}ϕ)$ reach 1$\times10^{-7}$, which might approach the observable threshold of near-future experiments.
description: 15 pages. Discussions added, some typos corrected
Additional file 1 of ARTP/EMS-combined multiple mutagenesis efficiently improved production of raw starch-degrading enzymes in Penicillium oxalicum and characterization of the enzyme-hyperproducing mutant
Creators: name: Gu, Li-Sha
name: Tan, Ming-Zhu
name: Li, Shi-Huan
name: Zhang, Ting
name: Zhang, Qi-Qiang
name: Li, Cheng-Xi
name: Luo, Xue-Mei
name: Feng, Jia-Xun
name: Zhao, Shuai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. ARTP/EMS-mediated mutagenesis and screening for RSDE hyperproducers. The P. oxalicum isolates were grown on the two-layer agar gel plates for 8 days. *: the isolates were screened and used for the next round of mutagenesis, by comparative analysis of their RSDE activities in MMM, containing wheat bran plus Avicel as the carbon source, for 6 days. RSDE activity was determined using RNCF as the substrate. ARTP: atmospheric and room-temperature plasma; EMS: ethyl methyl sulfonate; RNCF: natural raw cassava flour; MMM: modified minimal medium.
Faculty development in British Columbia Community Colleges
Creators: name: Garneau, J. E. Paul
Publisher: name: University of British Columbia
Year: 2008

description: This thesis was an attempt to better understand what it would take for faculty development decision makers to promote faculty vitality more effectively in British Columbia community colleges. First, it was necessary to examine governmental expectations and objectives for the entire system. Next, a review of the complex terminology used to describe multiple aspects of faculty development was presented. This was followed by an extensive review of the literature on the subject, going back to its early development through to the year 1992. This review revealed the existence of considerable diversity throughout the field. In an effort to somewhat rationalize what faculty development pursuits had come to, a comprehensive model was developed and put to the test with a sampling of decision makers employed at two-year institutions. The model served as a base for the development of an integrated questionnaire which featured an elaborated checklist of potential faculty development activities. Respondents were asked to provide strategic as well as operational information as it related to the developmental needs of regular full-time faculty members. The study's inductive findings supported the model well, enabling an analysis of its implications regarding theory, research, and practice.
Fusion hierarchies for N = 4 superYang-Mills theory
Creators: name: Belitsky, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We employ the analytic Bethe Anzats to construct eigenvalues of transfer matrices with finite-dimensional atypical representations in the auxiliary space for the putative long-range spin chain encoding anomalous dimensions of all composite single-trace gauge invariant operators of the maximally supersymmetric Yang-Mills theory. They obey an infinite fusion hierarchy which can be reduced to a finite set of integral relations for a minimal set of transfer matrices. This set is used to derive a finite systems of functional equations for eigenvalues of nested Baxter polynomials.
description: 24 pages, 2 figures
Additional file 2 of ARTP/EMS-combined multiple mutagenesis efficiently improved production of raw starch-degrading enzymes in Penicillium oxalicum and characterization of the enzyme-hyperproducing mutant
Creators: name: Gu, Li-Sha
name: Tan, Ming-Zhu
name: Li, Shi-Huan
name: Zhang, Ting
name: Zhang, Qi-Qiang
name: Li, Cheng-Xi
name: Luo, Xue-Mei
name: Feng, Jia-Xun
name: Zhao, Shuai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Fig. S2. Curve showing lethality against P. oxalicum strains OXPoxGA15A and E3-16, treated by ethyl methyl sulfonate (A) and atmospheric and room-temperature plasma (B). P. oxalicum spores were spread on PDA plates and incubated at 28 °C for 4 days. Each data point represents mean ± SD. Each experiment contained three biological replicates.
Understanding population annealing Monte Carlo simulations
Creators: name: Weigel, Martin
name: Barash, Lev Yu.
name: Shchur, Lev N.
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Population annealing is a recent addition to the arsenal of the practitioner in computer simulations in statistical physics and beyond that is found to deal well with systems with complex free-energy landscapes. Above all else, it promises to deliver unrivaled parallel scaling qualities, being suitable for parallel machines of the biggest calibre. Here we study population annealing using as the main example the two-dimensional Ising model which allows for particularly clean comparisons due to the available exact results and the wealth of published simulational studies employing other approaches. We analyze in depth the accuracy and precision of the method, highlighting its relation to older techniques such as simulated annealing and thermodynamic integration. We introduce intrinsic approaches for the analysis of statistical and systematic errors, and provide a detailed picture of the dependence of such errors on the simulation parameters. The results are benchmarked against canonical and parallel tempering simulations.
description: 26 pages, 23 figures
Combinatorial derived invariants for gentle algebras
Creators: name: Avella-Alaminos, Diana
name: Geiss, Christof
Publisher: name: arXiv
Year: 2006
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16G20, 16E30, 18E30

description: We define derived equivalent invariants for gentle algebras, constructed in an easy combinatorial way from the quiver with relations defining these algebras. Our invariants consist of pairs of natural numbers and contain important information about the algebra and the structure of the stable Auslander-Reiten quiver of its repetitive algebra. As a by-product we obtain that the number of arrows of the quiver of a gentle algebra is invariant under derived equivalence. Finally, our invariants separate the derived equivalence classes of gentle algebras with at most one cycle.
description: 22 pages, slightly reorganized and an example added, final version. To appear in J. Pure Appl. Algebra
Nonlinearity Management in Optics: Experiment, Theory, and Simulation
Creators: name: Centurion, Martin
name: Porter, Mason A.
name: Kevrekidis, P. G.
name: Psaltis, Demetri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We conduct an experimental investigation of nonlinearity management in optics using femtosecond pulses and layered Kerr media consisting of glass and air. By examining the propagation properties over several diffraction lengths, we show that wave collapse can be prevented. We corroborate these experimental results with numerical simulations of the (2 + 1)-dimensional focusing cubic nonlinear Schrödinger equation with piecewise constant coefficients and a theoretical analysis of this setting using a moment method.
description: 4 pages, 4 figures (some with multiple parts; color online), to appear in Physical Review Letters; changes from previous version: revised figures, discussion of time-dependent simulations, other touch-ups
Ground-state properties of even-even N=Z nuclei within the Hartree-Fock-BCS and Higher Tamm-Dancoff approaches
Creators: name: Bonneau, L.
name: Quentin, P.
name: Sieja, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the ground-state properties of well deformed, even-even N=Z nuclei in the region between Ni-56 and Sn-100 within two different approaches, focusing on the binding energy and deformation and pairing properties. First, we employ the Hartree-Fock-BCS (HFBCS) approximation with the Skyrme effective nucleon-nucleon interaction and discuss how the results depend on the parameterization of the interaction and on the pairing force parameters adjusted in various schemes to reproduce the experimental odd-even mass differences. Then, within the Higher Tamm-Dancoff Approximation (HTDA), which explicitly conserves the particle number, we calculate the same properties starting from the HFBCS solutions. The HTDA treatment of the ground-state correlations is converged within a n-particle-n-hole expansion using up to n=4 particle-hole excitations of the pair type (in the sense of Cooper pairs). We compare the ground-state properties calculated in these two descriptions of pairing correlations and deduce the importance of the particle-number conservation in weak pairing regimes. Finally, we extend the HTDA calculations so as to include the proton-neutron residual interaction and investigate the role of proton-neutron pairing on the above ground-state properties.
description: 12 pages, 3 figures, 11 tables, submitted to Physical Review C
Additional file 5 of ARTP/EMS-combined multiple mutagenesis efficiently improved production of raw starch-degrading enzymes in Penicillium oxalicum and characterization of the enzyme-hyperproducing mutant
Creators: name: Gu, Li-Sha
name: Tan, Ming-Zhu
name: Li, Shi-Huan
name: Zhang, Ting
name: Zhang, Qi-Qiang
name: Li, Cheng-Xi
name: Luo, Xue-Mei
name: Feng, Jia-Xun
name: Zhao, Shuai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Table S1. List of 230 single-nucleotide variants of the mutant A2-13 compared with the starting strain OXPoxGA15A.
NIR emission of Nd3+-doped sodium barium borate oxyfluoride glasses for1.07 um laser materials
Creators: name: Piyachat Meejitpaisan
Publisher: name: Nakhon Pathom Rajabhat University
Year: 2019
Subjects: Optical absorption, Nd2O3, NIR emission, sodium barium borate glasses

description: Journal of Thai Interdisciplinary Research, 14, 3, 54
Η εμπειρία της μητρότητας σε μητέρες πρώην χρήστριες ψυχοτρόπων ουσιών
Creators: name: Μιχαηλίδου, Μακρίνα Γρηγορίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Τοξικομανείς μητέρες
Μητρότητα
Θεματική ανάλυση
Drug abusing mothers
Motherhood
Thematic Analysis

description: Η παρούσα εργασία στόχευε στη σκιαγράφηση της μητρότητας έτσι όπως την περιέγραψαν μητέρες πρώην χρήστριες. Οι μητέρες τοξικομανείς συχνά δυσκολεύονται να δημιουργήσουν ασφαλή δεσμό και οι φροντίδες τους χαρακτηρίζονται από μια ασυνέχεια. Αξίζει να σημειωθεί ότι η κακοποίηση δεν είναι συνώνυμη της τοξικομανίας παρόλο που αρκετές μητέρες χρήστριες παραμελούν τα παιδιά τους. Στην παρούσα έρευνα συμμετείχαν έξι γυναίκες πρώην χρήστριες ηλικίας από 33 μέχρι 41 έτους. Το ερευνητικό εργαλείο που χρησιμοποιήθηκε ήταν η ημι-δομημένη συνέντευξη και προτιμήθηκε η θεματική ανάλυση από την οποία προέκυψαν πέντε βασικά θέματα: α) η απόφαση συνέχιση της εγκυμοσύνης β) η σημασία της παρελθοντικής φροντίδας και της παρούσας στήριξης γ) η επίδραση της χρήσης στην καθημερινή ζωή της μητέρας δ) η επαφή με το παιδί και ε) το δίπολο της αποδοχής και της απόρριψης. Οι μητέρες αυτές περιέγραψαν δυσκολίες που η βιβλιογραφία εντοπίζει τόσο στις υπόλοιπες μητέρες που δεν είναι χρήστριες όσο και στον πληθυσμό των χρηστών επιβαρύνοντας και περιπλέκοντας τον ρόλο τους. Η εγκυμοσύνη είναι συνήθως απρογραμμάτιστη. Βιώνουν συχνά ενοχές, ντροπή και έρχονται αντιμέτωπες με επιβαρυντικούς παράγοντες όπως απώλειες, προβλήματα υγείας, παραμέληση ως παιδιά, κακοποίηση ενώ δεν έχουν πάντα ένα σταθερό υποστηρικτικό δίκτυο. Εκφράζουν ανησυχίες για τα παιδιά τους αλλά και για τον ρόλο τους ενώ αποζητούν βοήθεια είτε από τον σύντροφο αν υπάρχει είτε από τους γονείς τους. Τέλος, αναφορές παραμέλησης του παιδιού υπήρχαν και αναφέρονταν σε περιόδους χρήσης.
description: The aim of the present thesis was the study of motherhood described by ex- drug abusing mothers. Addicted mothers more often than not have difficulties to create secure attachment and their cares are not stable. Although many addicted mothers neglect their offspring it does not mean that addiction will provoke abuse. In this research six ex-addicted women participated (33-41 years old). The research was conducted through semi-structured interviews and the preferable type of analysis was the thematic analysis which gave five themes: a) the decision of continuing the pregnancy b) the meaning of past care and present support c) the influence of drugs in the daily routine of the mother d) the interaction with the child e) the acceptance and rejection. These mothers described difficulties that are also described by non-addicted mothers. The pregnancy was unplanned more than often. It is usual to feel guilt, shame and they deal with danger factors as losses, health problems, neglect and the absence of a supporting social network. They express worry about their children and their role as mothers. Furthermore, they ask for help more usually either from their mates or their parents. Last but not least, there were references to neglect but only when they were drug abusers.
Multipole Susceptibility of Multiorbital Anderson Model Coupled with Jahn-Teller Phonons
Creators: name: Hotta, Takashi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In order to clarify possible multipole states of Sm-based filled skutterudite compounds, we investigate multipole susceptibility of a multiorbital Anderson model dynamically coupled with Jahn-Teller phonons by using a numerical renormalization group method. Here we take a procedure to maximize the multipole susceptibility matrix to determine the multipole state. When the electron-phonon coupling term is simply ignored, it is found that the dominant multipole state is characterized by 2u octupole for the $Γ_{67}^-$ quartet ground state, while the low-temperature phase is governed by magnetic fluctuations for the $Γ_5^-$ doublet ground state. When we include the coupling between $f$ electrons in degenerate $Γ_{67}^{-}$ ($e_{\rm u}$) orbitals and Jahn-Teller phonons with $E_{\rm g}$ symmetry, the mixed multipole state with 4u magnetic and 5u octupole moments is found to be dominant with significant 3g quadrupole fluctuations at low temperatures.
description: 8 pages, 3 figures. Typeset with jpsj2.cls
Η θεωρία του συναισθήματος στο Θεμέλιο της σύνολης Επιστημολογίας του J. G. Fichte
Creators: name: Σωτηρόπουλος, Γρηγόριος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Συναίσθημα
Τάση
Ενόρμηση
Feeling
Striving
Drive

description: Σκοπός της παρούσης διατριβής ήταν η διερεύνηση της θεωρίας του συναισθήματος στο Θεμέλιο της σύνολης Επιστημολογίας του J.G. Fichte. Εξετάστηκε το συναίσθημα ως το μέσο διά του οποίου ο θεωρητικός λόγος συναρμόττει με τον πρακτικό και ούτως επιλύεται η θεωρητικώς μη επιλύσιμη αντίθεση μεταξύ του διά παντός τεθειμένου και του πεπερασμένου Εγώ. Αναδείχθηκε η κύρια αντίθεση και εφαρμόσθηκε η μεθοδολογία επίλυσής της. Παρουσιάστηκε αναλυτικά ο διαχωρισμός αντίρροπων δυνάμεων, οι οποίες ευρίσκονταν πρωταρχικώς συνενωμένες στο συναίσθημα. Κατόπιν δείχθηκε η αντιστοίχιση των αντίθετων δυνάμεων με την τάση και τον εξαναγκασμό. Επιπλέον δόθηκε ιδιαίτερη βαρύτητα στους καθορισμούς της ενόρμησης και του συναισθήματος διά των οποίων το συναισθανόμενο τίθεται και ούτως Είναι. Τέλος, ένα μέρος των διαλέξεων του φιλοσόφου μεταφράστηκε στην ελληνική γλώσσα, ώστε να δειχθεί ο τρόπος με τον οποίο η θεωρία του συναισθήματος μπορεί να εφαρμοσθεί στην πολιτική.
description: The purpose of this dissertation was to inquire the theory of feeling in J.G. Fichte’s Foundation of the entire Science of Knowledge. Feeling was examined as the medium by which the theoretical reason articulates with the practical and thus resolves the theoretically unresolvable contradiction between the unconditionally self-posited I and the finite I. The main opposition emerged, and its resolution methodology was implemented. The separation of opposing forces, which were primarily balanced in feeling, was presented in detail. Then, the opposing forces were compared to striving and coercion. In addition, special emphasis was given to the definitions of drive and feeling through which the sensuous posits itself and thus is. Finally, part of the philosopher's lectures was translated into the Greek language in order to indicate the way in which the theory of feeling can be applied to politics.
description: Σε συνεργασία με: Φιλοσοφίας, Παιδαγωγικής και Ψυχολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών), Φιλοσοφικών και Κοινωνικών Σπουδών (Πανεπιστήμιο Κρήτης)
Exploring teaching assistants’ conceptions of teaching
Creators: name: Johnson, Janice B.
Publisher: name: University of British Columbia
Year: 2008

description: As academics interested in the improvement of post-secondary teaching, we are challenged to understand andarticulate our differing conceptions of teaching. As a processof personal discovery, this can lead us to make our beliefs andactions more congruent, and thus ultimately to improve ourpractice. As a focus for research, it can provide us with asolid foundation from which to begin to understand and discussthe contrasting and often apparently conflicting beliefs andpractices of others. As a goal for practitioners, meeting thischallenge can suggest improvements to our teaching trainingprograms which will help others to reach that goal. This phenomenographical research, Exploring TeachingAssistants' Conceptions of Teaching, inquired into theconceptions of teaching held by nine teaching assistants, andidentified changes in their conceptions over time. Four qualitatively different conceptions of teaching wereidentified: (1) Communicating Content--Sharing Concepts, (2)Contextualizing Learning--Knowledge in Action, (3) DevelopingScholars--Advancing a Discipline, and (4) Inspiring Learning--Honouring Curiosity. These conceptions were defined as uniqueprofiles of seven constituent dimensions: (1) LearnerDiversity, (2) Learner Autonomy, (3) Orientation of Learning,(4) Expected Outcomes of Learning, (5) Knowledge and Meaning,(6) Teaching-Learning Process, and (7) Focus of Teaching.Changes in the combinations of conceptions of teaching held bythree of the TAs during the research period were identified. iiiNo changes were identified in the combinations of conceptions held by the remaining six TAs. This research showed that numerous similarities existbetween the conceptions held by this group of TAs, and thoseidentified by other researchers working with faculty membersand adult educators. It confirmed that changes do occur in thecombinations of conceptions held. Further, this researchcontributed methodologically to the study of beliefs aboutteaching, by demonstrating the benefits of using profiles ofcommon constituent dimensions to define and compareconceptions. Finally, it identified gaps in our knowledge,suggested improvements to our practice, and highlighted areasworthy of more in-depth investigation which will contributetoward improving teaching in post-secondary education.
RNA 2D/3D structure prediction with a consensus of covariance/contact methods
Creators: name: Hamilton, Russell S.
name: Ferguson-Smith, Anne C.
name: Taylor, William R.
Publisher: name: F1000 Research Limited
Year: 2019

description: RNA structures are formed from canonical Watson-Crick base-pairings (A:U, C:G, G:U) forming structural elements such as stem-loops. However, non-canonical base-pairings mediated through hoogenstein and sugar edges of the nucleotides permit many more base-pairing combinations, enabling more elaborate 3D structures. Motifs such as the G-quadruplex, i-motif and kink-turn have been suggested to mediate the translation of the RNA, however the roles these motifs remain enigmatic. Therefore, accurate prediction of these motifs is essential for furthering our understanding of the non-canonical base-paired motif functions.

RNA base-pairings predicted using correlated mutation approaches can provide powerful restrictions on the 2D/3D conformation of RNA motifs. However, we have previously shown predicted contacts can be too erratic to provide generalised RNA 3D predictions. To further assess this limitation, we evaluate contact predictions made by four methods (CCMpred, R-Scape, Plmc) and benchmark their individual performance against databases of RNAs with known structures (Rfam & RNA-puzzles). We then produce a consensus of restraints, supplemented with minimum-free energy calculations taking into account base stacking. Performance of the consensus restraints is assessed by their ability to accurately predict 3D structures. We discuss strengths and weaknesses of each of the methods and present the results as a dynamic web resource.
Counteracting dephasing in Molecular Nanomagnets by optimized qudit encodings
Creators: name: Petiziol, Francesco
name: Chiesa, Alessandro
name: Wimberger, Sandro
name: Santini, Paolo
name: Carretta, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Molecular Nanomagnets may enable the implementation of qudit-based quantum error-correction codes which exploit the many spin levels naturally embedded in a single molecule, a promising step towards scalable quantum processors. To fully realize the potential of this approach, a microscopic understanding of the errors corrupting the quantum information encoded in a molecular qudit is essential, together with the development of tailor-made quantum error correction strategies. We address these central points by first studying dephasing effects on the molecular spin qudit produced by the interaction with surrounding nuclear spins, which are the dominant source of errors at low temperatures. Numerical quantum error correction codes are then constructed, by means of a systematic optimisation procedure based on simulations of the coupled system-bath dynamics, that provide a striking enhancement of the coherence time of the molecular computational unit. The sequence of pulses needed for the experimental implementation of the codes is finally proposed.
description: 11 pages, 7 figures
Elliptic symbols, elliptic operators and Poincaré duality on conical pseudomanifolds
Creators: name: Lescure, Jean-Marie
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 58B34, 58J42, 58J20, 58H05

description: In a earlier work of Claire Debord and the author, a notion of noncommutative tangent space isdefined for a conical pseudomanifold and the Poincaré duality in $K$-theory is proved between this space and the pseudomanifold. The present paper continues this work. We show that an appropriate and natural presentation of the notion of symbols on a manifold generalizes right away to conical pseudomanifolds and that it enables us to interpret the Poincaré duality in the singular setting as a principal symbol map.
description: 24 pages
Detection of a 63 Degree Cold Stellar Stream in the Sloan Digital Sky Survey
Creators: name: Grillmair, Carl J.
name: Dionatos, Odysseas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the detection in Sloan Digital Sky Survey data of a 63 degree-long tidal stream of stars, extending from Ursa Major to Cancer. The stream has no obvious association with the orbit of any known cluster or galaxy. The contrast of the detected stream is greatest when using a star count filter that is matched to the color-magnitude distribution of stars in M 13, which suggests that the stars making up the stream are old and metal poor. The visible portion of the stream is very narrow and about 8.5 kpc above the Galactic disk, suggesting that the progenitor is or was a globular cluster. While the surface density of the stream varies considerably along its length, its path on the sky is very smooth and uniform, showing no evidence of perturbations by large mass concentrations in the nearby halo. While definitive constraints cannot be established without velocity information, the stream's projected path and estimates of its distance suggest that we are observing the stream near the perigalacticon of its orbit.
description: 12 pages, 2 figures, accepted for publication in the Astrophysical Journal Letters. Updated to correspond to version accepted by ApJ
The correlation potential in density functional theory at the GW-level: spherical atoms
Creators: name: Hellgren, M.
name: von Barth, U.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: As part of a project to obtain better optical response functions for nano materials and other systems with strong excitonic effects we here calculate the exchange-correlation (XC) potential of density-functional theory (DFT) at a level of approximation which corresponds to the dynamically- screened-exchange or GW approximation. In this process we have designed a new numerical method based on cubic splines which appears to be superior to other techniques previously applied to the "inverse engineering problem" of DFT, i.e., the problem of finding an XC potential from a known particle density. The potentials we obtain do not suffer from unphysical ripple and have, to within a reasonable accuracy, the correct asymptotic tails outside localized systems. The XC potential is an important ingredient in finding the particle-conserving excitation energies in atoms and molecules and our potentials perform better in this regard as compared to the LDA potential, potentials from GGA:s, and a DFT potential based on MP2 theory.
description: 13 pages, 9 figures
Magnetization profiles at the upper critical dimension as solutions of the integer Yamabe problem
Creators: name: Galvani, Alessandro
name: Gori, Giacomo
name: Trombettoni, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the connection between the magnetization profiles of models described by a scalar field with marginal interaction term in a bounded domain and the solutions of the so-called Yamabe problem in the same domain, which amounts to finding a metric having constant curvature. Taking the slab as a reference domain, we first study the magnetization profiles at the upper critical dimensions $d=3$, $4$, $6$ for different (scale invariant) boundary conditions. By studying the saddle-point equations for the magnetization, we find general formulas in terms of Weierstrass elliptic functions, extending exact results known in literature and finding new ones for the case of percolation. The zeros and poles of the Weierstrass elliptic solutions can be put in direct connection with the boundary conditions. We then show that, for any dimension $d$, the magnetization profiles are solution of the corresponding integer Yamabe equation at the same $d$ and with the same boundary conditions. The magnetization profiles in the specific case of the $4$-dimensional Ising model with fixed boundary conditions are compared with Monte Carlo simulations, finding good agreement. These results explicitly confirm at the upper critical dimension recent results presented in [1].
description: Version published in Physical Review E. 12 pages, 9 figures, 2 tables