cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Unveiling the properties of metagratings via a detailed analytical model for synthesis and analysis
Creators: name: Epstein, Ariel
name: Rabinovich, Oshri
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present detailed analytical modelling and in-depth investigation of wide-angle reflect-mode metagrating beam splitters. These recently introduced ultrathin devices are capable of implementing intricate diffraction engineering functionalities with only a single meta-atom per macro-period, making them considerably simpler to synthesize than conventional metasurfaces. We extend upon recent work and focus on electrically-polarizable metagratings, comprised of loaded conducting wires in front of a perfect elecric conductor, excited by transverse-electric polarized fields, which are more practical for planar fabrication. The derivation further relates the metagrating performance parameters to the individual meta-atom load, facilitating an efficient semianalytical synthesis scheme to determine the required conductor geometry for achieving optimal beam splitting. Subsequently, we utilize the model to analyze the effects of realistic conductor losses, reactance deviations, and frequency shifts on the device performance, and reveal that metagratings feature preferable working points, in which the sensitivity to these non-idealities is rather low. The analytical relations shed light on the physical origin of this phenomenon, associating it with fundamental interference processes taking place in the device. These results, verified via full-wave simulations of realistic physical structures, yield a set of efficient engineering tools, as well as profound physical intuition, for devising future metagrating devices, with immense potential for microwave, terahertz, and optical beam-manipulation applications.
description: 15 pages, 9 figures
title: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.142
Creators: name: Rouzeau, Benoît
name: Rouzeau, Benoît
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cistercien
subject: cartulaire
subject: LaMOP

description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains. Numérisation en mode image
description: Relation: https://cisterciensetressources.lamop.fr/
description: Bibliographic citation: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.142, in Projet Cisterciens et Ressources [Ressource en ligne], https://cisterciensetressources.lamop.fr
description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f. 142
Charge to Mass Ratio of the Electron
Creators: name: Rugh, Jake
Publisher: name: figshare
Year: 2018
Subjects: subject: 20302 Electrostatics and Electrodynamics
subject: FOS: Physical sciences
subject: Mechanics
subject: Atomic Physics

description: Sought to measure the charge to mass ratio of electrons in circular motion in a magnetic field in a vacuum. Took observations of accelerating voltage, magnetic field strength, and radius of the electrons' path to calculate the ratio. This experiment was conducted as part of physics curriculum at the University of California Santa Barbara. The experiment can be found in Physics 3L/4L Lab Manual.
Cycle-expansion method for the Lyapunov exponent, susceptibility, and higher moments
Creators: name: Charbonneau, Patrick
name: Li, Yue
name: Pfister, Henry D.
name: Yaida, Sho
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Lyapunov exponents characterize the chaotic nature of dynamical systems by quantifying the growth rate of uncertainty associated with the imperfect measurement of initial conditions. Finite-time estimates of the exponent, however, experience fluctuations due to both the initial condition and the stochastic nature of the dynamical path. The scale of these fluctuations is governed by the Lyapunov susceptibility, the finiteness of which typically provides a sufficient condition for the law of large numbers to apply. Here, we obtain a formally exact expression for this susceptibility in terms of the Ruelle dynamical zeta function for one-dimensional systems. We further show that, for systems governed by sequences of random matrices, the cycle expansion of the zeta function enables systematic computations of the Lyapunov susceptibility and of its higher-moment generalizations. The method is here applied to a class of dynamical models that maps to static disordered spin chains with interactions stretching over a varying distance, and is tested against Monte Carlo simulations.
description: 9 pages, 4 figures; v2: minor revisions made. Data relevant to this work can be accessed at http://dx.doi.org/10.7924/G88050N6
Weibull fits to global tree species abundance distributions
Creators: name: Ulrich, Werner
Publisher: name: figshare
Year: 2018
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Abundance - species rank order plots of 534 global forest tree communities together with fits of the two parameter Weibull distribution. Raw data have been provided by
Ulrich, W., Kusumoto, B., Shiono, T., Kubota, Y., 2016a. Climatic and geographical correlates of global forest tree species abundance distributions and community evenness. J. Veg. Sci. 27, 295-305.Weibull fits are described by Ulrich, W., Nakadai, R., Matthews, T., Kubota, Y. 2018. The two-parameter Weibull distribution as a universal tool to model the variation in species relative abundances. Ecol. Modell. Software, submitted.
On the gauge invariant path-integral measure for the overlap Weyl fermions in $\underline{16}$ of SO(10)
Creators: name: Kikukawa, Yoshio
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the lattice formulation of SO(10) chiral gauge theory with left-handed Weyl fermions in the sixteen dimensional spinor representation ($\underline{16}$) within the framework of the Overlap fermion/the Ginsparg-Wilson relation. We define a manifestly gauge-invariant path-integral measure for the left-handed Weyl field using all the components of the Dirac field, but the right-handed part of which is just saturated completely by inserting a suitable product of the SO(10)-invariant 't Hooft vertices in terms of the right-handed field. The definition of the measure applies to all possible topological sectors. The measure possesses all required transformation properties under lattice symmetries and the induced effective action is CP invariant. The global U(1) symmetry of the left-handed field is anomalous due to the non-trivial transformation of the measure, while that of the right-handed field is explicitly broken by the 't Hooft vertices. There remains the issue of locality in the gauge-field dependence of the Weyl fermion measure, but the question can be addressed in the weak gauge-coupling expansion at least using Monte Carlo methods without encountering the sign problem. We also discuss the relations of our formulation to other approaches/proposals to decouple the species-doubling/mirror degrees of freedom. Those include Eichten-Preskill model, Ginsparg-Wilson Mirror-fermion model, Domain wall fermion model with the boundary Eichten-Preskill term, 4D Topological Insulator/Superconductor with gapped boundary phase, and the recent studies on the PMS phase/"Mass without symmetry breaking". We clarify the similarity and the difference in technical detail and show that our proposal is a well-defined testing ground for that basic question.
description: 70 pages, references added, a wrong explanation in the last paragraph of subsec. 4.1 corrected, and section 3.2 added to explain a simpler derivation of chiral determinant and 't Hooft vertex pfaffians
Absence of long-range order in a three-dimensional stacked Ising antiferromagnet on kagome lattice
Creators: name: Semjan, M.
name: Žukovič, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the possibility of long-range ordering (LRO) in a 3D system of vertically stacked layers of Ising antiferromagnet on a kagome lattice (SIAKL). Monte Carlo simulations are carried out for a varying interlayer coupling strength and a finite-size scaling analysis is performed for selected cases. Unlike in the related Ising system on a triangular lattice, in which even a finite number of the layers can stabilize LRO, or the Heisenberg system on the same kagome lattice, in which LRO emerged in 3D for a sufficient strength of the interlayer coupling, no LRO could be observed in the present model. This makes SIAKL a rare example of a 3D Ising paramagnet composed of frustrated layers coupled by unfrustrated interaction.
description: 19 pages, 8 figures
Unpacking Black Women Superintendents’ Experiences: Intersectionality of Race, Gender, and Resiliency
Creators: name: Kingsberry, Francemise S.
name: Jean-Marie, Gaëtane
Publisher: name: University of Toronto Press
Year: 2022

description:
In keeping with the special issue centered on Gender and Race in the Workplace, this article explores the role that the intersection of race and gender played in the attainment of the superintendency for four Black women superintendents. Despite their increasing presence in educational leadership, Black women continue to experience marginalization such as being overworked, undervalued, and overlooked in the workplace. By examining the barriers these women faced as well as the ways in which they overcame them, much can be weaned from their wisdom and experiences for future aspirants as well as current superintendents. This article highlights the journeys of four Black women superintendents which underscores their intersectionality experiences drawing upon their resilience to achieve success. Their stories, especially in light of the increasingly violent and racially charged settings in which they find themselves, are necessary and deserve a voice. The findings have implications for research and practice.
Generating an electromagnetic multipole by oscillating currents
Creators: name: Farhi, Asaf
name: Bergman, David J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Based on the relation between a plane phased array and plane waves we show that a spherical current layer or a current sphere proportional to a multipole electric field and situated in a uniform medium generates the same multipole field in all space. We calculate TE and TM multipoles inside and outside the spherical layer. The $l=1$ TM multipoles are localized at the origin with a focal spot with full width at half maximum of $0.4λ$ in the lateral axes and $0.58λ$ in the vertical axis. The multipole fields near the origin are prescriptions for the current distributions required to generate those multipole fields. A spherical layer can couple to a multipole source since the oscillation of the electrons in the layer due to the multipole field generates the multipole field in all space, which in turn can drive the multipole currents. Exciting a multipole in a polarizable sphere or spherical layer can couple it to another polarizable sphere or spherical layer.
Direct generation of entangled photon pairs in nonlinear optical waveguides
Creators: name: Echarri, Álvaro Rodríguez
name: Cox, Joel D.
name: de Abajo, F. Javier García
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entangled photons are pivotal elements in emerging quantum information technologies. While several schemes are available for the production of entangled photons, they typically require the assistance of cumbersome optical elements to couple them to other components involved in logic operations. Here, we introduce a scheme by which entangled photon pairs are directly generated as guided mode states in optical waveguides. The scheme relies on the intrinsic nonlinearity of the waveguide material, circumventing the use of bulky optical components. Specifically, we consider an optical fiber under normal illumination, so that photon down-conversion can take place to waveguide states emitted with opposite momentum into a spectral region populated by only two accessible modes. By additionally configuring the external illumination to interfere different incident directions, we can produce maximally entangled photon-pair states, directly generated as waveguide modes with conversion efficiencies that are competitive with respect to existing macroscopic schemes. These results should find application in the design of more efficient and compact quantum optics devices.
description: 17 pages, 4 figures, 41 references
Weibull fits
Creators: name: Ulrich, Werner
Publisher: name: figshare
Year: 2018
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Abundance - species rank order plots of 534 global forest tree communities together with fits of the two parameter Weibull distribution. Raw data have been provided by
Ulrich, W., Kusumoto, B., Shiono, T., Kubota, Y., 2016a. Climatic and geographical correlates of global forest tree species abundance distributions and community evenness. J. Veg. Sci. 27, 295-305.Weibull fits are described by Ulrich, W., Nakadai, R., Matthews, T., Kubota, Y. 2018. The two-parameter Weibull distribution as a universal tool to model the variation in species relative abundances. Ecol. Modell. Software, submitted.
Supplemental Figure 1 and Supplemental Tables 1-4 to accompany paper entitled: "Beat-to-beat cardiac repolarization lability increases during hypoxemia and arousals in obstructive sleep apnea patients"
Creators: name: Ebrahimian, Serajeddin
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320899
subject: Medical physiology not elsewhere classified

description: Supplemental figures/tables for the manuscript entitled: "Beat-to-beat cardiac repolarization lability increases during hypoxemia and arousals in obstructive sleep apnea patients"
Whitepaper: Practical challenges for researchers in data sharing
Creators: name: Stuart, David
name: Baynes, Grace
name: Hrynaszkiewicz, Iain
name: Allin, Katie
name: Penny, Dan
name: Mithu Lucraft
name: Astell, Mathias
Publisher: name: figshare
Year: 2018
Subjects: subject: 160511 Research, Science and Technology Policy
subject: FOS: Political science
subject: 100504 Data Communications
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: Science Policy

description: In one of the largest surveys of researchers about research data (with over 7,700 respondents), Springer Nature finds widespread data sharing associated with published works and a desire from researchers that their data are discoverable.

This whitepaper examines the results of this survey and discusses the challenges that researchers face in sharing their data. The whitepaper looks at data sharing attitudes globally, as well as in relation to region, subject and seniority.

Infographic: https://doi.org/10.6084/m9.figshare.5996786
Remarks on Vector Space Generated by the Multiplicative Commutators of a Division Ring
Creators: name: Aaghabali, Mehdi
name: Tajfirouz, Zakeieh
Publisher: name: arXiv
Year: 2017
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17A01, 17A35

description: Let D be a division ring with centre F. Let T(D) be the vector space over F generated by all multiplicative commutators in D. In [1], authors have conjectured that every division ring is generated as a vector space over its centre by all of its multiplicative commutators. In this note it is shown that if D is centrally finite, then the conjecture holds.
Models of pulsationally assisted gravitationally confined detonations with different ignition conditions
Creators: name: Lach, F.
name: Callan, F. P.
name: Sim, S. A.
name: Roepke, F. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Over the past decades, many explosion scenarios for Type Ia supernovae have been proposed and investigated including various combinations of deflagrations and detonations in white dwarfs of different masses up to the Chandrasekhar mass. One of these is the gravitationally confined detonation model. In this case a weak deflagration burns to the surface, wraps around the bound core, and collides at the antipode. A subsequent detonation is then initiated in the collision area. Since the parameter space for this scenario, that is, varying central densities and ignition geometries, has not been studied in detail, we used pure deflagration models of a previous parameter study dedicated to Type Iax supernovae as initial models to investigate the gravitationally confined detonation scenario. We aim to judge whether this channel can account for one of the many subgroups of Type Ia supernovae, or even normal events. To this end, we employed a comprehensive pipeline for three-dimensional Type Ia supernova modeling that consists of hydrodynamic explosion simulations, nuclear network calculations, and radiative transfer. The observables extracted from the radiative transfer are then compared to observed light curves and spectra. The study produces a wide range in masses of synthesized 56 Ni ranging from 0.257 to 1.057 $M_\odot$ , and, thus, can potentially account for subluminous as well as overluminous Type Ia supernovae in terms of brightness. However, a rough agreement with observed light curves and spectra can only be found for 91T-like objects. Although several discrepancies remain, we conclude that the gravitationally confined detonation model cannot be ruled out as a mechanism to produce 91T-like objects. However, the models do not provide a good explanation for either normal Type Ia supernovae or Type Iax supernovae.
description: 15 pages, 12 figures, published in A&A, corrected reference
Non-geometric Calabi-Yau Backgrounds and K3 automorphisms
Creators: name: Hull, Chris
name: Israel, Dan
name: Sarti, Alessandra
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider compactifications of type IIA superstring theory on mirror-folds obtained as K3 fibrations over two-tori with non-geometric monodromies involving mirror symmetries. At special points in the moduli space these are asymmetric Gepner models. The compactifications are constructed from non-geometric automorphisms that arise from the diagonal action of an automorphism of the K3 surface and of an automorphism of the mirror surface. We identify the corresponding gaugings of N=4 supergravity in four dimensions, and show that the minima of the potential describe the same four-dimensional low-energy physics as the worldsheet formulation in terms of asymmetric Gepner models. In this way, we obtain a class of Minkowski vacua of type II string theory which preserve N=2 supersymmetry. The massless sector consists of N=2 supergravity coupled to 3 vector multiplets, giving the STU model. In some cases there are additional massless hypermultiplets.
description: 48 pages, no figures; v2: few typos corrected, one rephrased statement in subsection 5.2
On the stability of network indices defined by means of matrix functions
Creators: name: Pozza, Stefano
name: Tudisco, Francesco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: Information Theory (cs.IT)
subject: Social and Information Networks (cs.SI)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65F60, 05C50, 15B48, 15A16

description: Identifying important components in a network is one of the major goals of network analysis. Popular and effective measures of importance of a node or a set of nodes are defined in terms of suitable entries of functions of matrices $f(A)$. These kinds of measures are particularly relevant as they are able to capture the global structure of connections involving a node. However, computing the entries of $f(A)$ requires a significant computational effort. In this work we address the problem of estimating the changes in the entries of $f(A)$ with respect to changes in the edge structure. Intuition suggests that, if the topology of connections in the new graph $\tilde G$ is not significantly distorted, relevant components in $G$ maintain their leading role in $\tilde G$. We propose several bounds giving mathematical reasoning to such intuition and showing, in particular, that the magnitude of the variation of the entry $f(A)_{k\ell}$ decays exponentially with the shortest-path distance in $G$ that separates either $k$ or $\ell$ from the set of nodes touched by the edges that are perturbed. Moreover, we propose a simple method that exploits the computation of $f(A)$ to simultaneously compute the all-pairs shortest-path distances of $G$, with essentially no additional cost. As the nodes whose edge connection tends to change more often or tends to be more often affected by noise have marginal role in the graph and are distant from the most central nodes, the proposed bounds are particularly relevant.
A Study of the Impact of the Contention Window on the Performance of IEEE 802.11bd Networks with Channel Bonding
Creators: name: Torgunakov, Viktor
name: Loginov, Vyacheslav
name: Khorov, Evgeny
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.2.1; C.2.2; C.2.5

description: Nowadays, Vehicle-To-Everything (V2X) networks are actively developing. Most of the already deployed V2X networks are based on the IEEE 802.11p standard. However, these networks can provide only basic V2X applications and will unlikely fulfill stringent requirements of modern V2X applications. Thus, the IEEE has launched a new IEEE 802.11bd standard. A significant novelty of this standard is channel bonding. IEEE 802.11bd describes two channel bonding techniques, which differ from the legacy one used in modern Wi-Fi networks. Our study performs a comparative analysis of the various channel bonding techniques and a single-channel access method from IEEE 802.11p via simulation. We compare them under different contention window sizes and demonstrate that the legacy technique provides the best quality of service in terms of frame transmission delays and packet loss ratio. Moreover, we have found a quasi-optimal contention window size for the legacy technique.
description: 5 pages, 5 figures
Additional file 1 of Young people’s preferences for HIV self-testing services in Nigeria: a qualitative analysis
Creators: name: Obiezu-Umeh, Chisom
name: Gbajabiamila, Titilola
name: Ezechi, Oliver
name: Nwaozuru, Ucheoma
name: Ong, Jason J.
name: Idigbe, Ifeoma
name: Oladele, David
name: Musa, Adesola Z.
name: Uzoaru, Florida
name: Airhihenbuwa, Collins
name: Tucker, Joseph D.
name: Iwelunmor, Juliet
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. In-depth interview guide.
Universality of the halo mass function in modified gravity cosmologies
Creators: name: Gupta, Suhani
name: Hellwing, Wojciech A.
name: Bilicki, Maciej
name: García-Farieta, Jorge Enrique
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the halo mass function (HMF) in modified gravity (MG) models using a set of large $N$-body simulations -- the ELEPHANT suite. We consider two popular beyond-general relativity scenarios: the Hu-Sawicki chameleon $f(R)$ model and the normal branch of the Dvali-Gabadadze-Porrati braneworld (nDGP). We show that in MG, analytic formulation based on the Press-Schechter framework offers a grossly inaccurate description of the HMF. We find, however, that once the HMF is expressed in terms of the dimensionless multiplicity function, it approximately assumes a redshift-independent universal character for all the models. Exploiting this property, we propose universal fits for the MG HMF in terms of their fractional departures from the $\mathrm{Λ\text{CDM}}$ case. We find two enclosed formulas, one for $f(R)$ and another for nDGP, that provide a reliable description of the HMF over the mass range covered by the simulations. These are accurate to a few percent with respect to the $N$-body data. We test the extrapolation potential of our fits against separate simulations with a different cosmological background and mass resolution, and find very good accuracy, within $\sim 10\%$. A particularly interesting finding from our analysis is a Gaussian-like shape of the HMF deviation that seems to appear universally across the whole $f(R)$ family, peaking at a mass variance scale characteristic for each $f(R)$ variant. We attribute this behavior to the specific physics of the environmentally-dependent chameleon screening models.
description: 16 pages and 8 figures
Optical response of monolayer, few-layer and bulk tungsten disulfide
Creators: name: Molas, Maciej R.
name: Nogajewski, Karol
name: Slobodeniuk, Artur O.
name: Binder, Johannes
name: Bartos, Miroslav
name: Potemski, Marek
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a comprehensive optical study of thin films of tungsten disulfide (WS$_2$) with layer thicknesses ranging from mono- to octalayer and in the bulk limit. It is shown that the optical band-gap absorption of monolayer WS$_2$ is governed by competing resonances arising from one neutral and two distinct negatively charged excitons whose contributions to the overall absorption of light vary as a function of temperature and carrier concentration. The photoluminescence response of monolayer WS$_2$ is found to be largely dominated by disorder/impurity- and/or phonon-assisted recombination processes. The indirect band-gap luminescence in multilayer WS$_2$ turns out to be a phonon-mediated process whose energy evolution with the number of layers surprisingly follows a simple model of a two-dimensional confinement. The energy position of the direct band-gap response (A and B resonances) is only weakly dependent on the layer thickness, which underlines an approximate compensation of the effect of the reduction of the exciton binding energy by the shrinkage of the apparent band gap. The A-exciton absorption-type spectra in multilayer WS$_2$ display a non-trivial fine structure which results from the specific hybridization of the electronic states in the vicinity of the K-point of the Brillouin zone. The effects of temperature on the absorption-like and photoluminescence spectra of various WS$_2$ layers are also quantified.
description: 13 pages, 13 figures, electronic supporting information
Effect of phosphorus on the electronic and optical properties of naphthoxaphospholes: theoretical investigation
Creators: name: Jiwon Moon
name: Minbi Kim
name: Lim, Jeong Sik
name: Joonghan Kim
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: Density functional theory (DFT) and time-dependent DFT calculations were performed to elucidate the electronic and optical properties of 2-R-naphthol[2,3-d]oxaphospholes (R-NOPs). On the basis of the calculated results, the poor π overlap between the 3pz orbital of P atom and the 2pz orbitals of other atoms and increasing polarity of P atom result in a reduced energy gap between the highest occupied molecular orbital and the lowest unoccupied molecular orbital. When these two effects are considered simultaneously, the absorption energies obtained for the S1 state can be below 3.00 eV according to replace the P atom of oxaphosphole ring by As atom (increasing the poor π overlap) and change the functional groups (increasing polarity). The origin of these two effects is the inherent size of the 3p orbital of P atom. The role of P atom in the control of the electronic and optical properties of R-NOPs is clearly elucidated.
Adaptive CLF-MPC With Application To Quadrupedal Robots
Creators: name: Minniti, Maria Vittoria
name: Grandia, Ruben
name: Farshidian, Farbod
name: Hutter, Marco
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: Modern robotic systems are endowed with superior mobility and mechanical skills that make them suited to be employed in real-world scenarios, where interactions with heavy objects and precise manipulation capabilities are required. For instance, legged robots with high payload capacity can be used in disaster scenarios to remove dangerous material or carry injured people. It is thus essential to develop planning algorithms that can enable complex robots to perform motion and manipulation tasks accurately. In addition, online adaptation mechanisms with respect to new, unknown environments are needed. In this work, we impose that the optimal state-input trajectories generated by Model Predictive Control (MPC) satisfy the Lyapunov function criterion derived in adaptive control for robotic systems. As a result, we combine the stability guarantees provided by Control Lyapunov Functions (CLFs) and the optimality offered by MPC in a unified adaptive framework, yielding an improved performance during the robot's interaction with unknown objects. We validate the proposed approach in simulation and hardware tests on a quadrupedal robot carrying un-modeled payloads and pulling heavy boxes.
Alpha Clustering with a Hollow Structure --- Geometrical Structure of Alpha Clusters from Platonic Solids to Fullerene Shape
Creators: name: Tohsaki, Akihiro
name: Itagaki, Naoyuki
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study $α$-cluster structure based on the geometric configurations with a microscopic framework, which takes full account of the Pauli principle, and which also employs an effective inter-nucleon force including finite-range three-body terms suitable for microscopic alpha-cluster models. Here, special attention is focused upon the $α$ clustering with a hollow structure; all the $α$ clusters are put on the surface of a sphere. All the Platonic solids (five regular polyhedra) and the fullerene-shaped polyhedron coming from icosahedral structure are considered. Furthermore, two configurations with dual polyhedra, hexahedron-octahedron and dodecahedron-icosahedron, are also scrutinized. As a consequence, we insist on the possible existence of stable $α$-clustering with a hollow structure for all the configurations. Especially, two configurations, that is, dual polyhedra of dodecahedron-icosahedron and fullerene, have a prominent hollow structure compared with other six configurations.
Jacqueline's Uncle
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Herbert Windsor Crock was a police officer.

- He was the eldest of 7 children, born in Cardiff September 1916.

- He died in Germany aged 26, in an aircraft.

- He was a bomb aimer, and their aircraft was unexpectedly hit.

- The pilot survived but Herbert and the other two died.

- He often wrote to his mother and brothers. He was a very brave man, but still scared.

- He was planning to ask his 'sweetheart' to marry him, and even bought a ring during his leave. He never got the chance to ask her.

- The girl continued to write to Jacqueline's grandmother throughout her life

- He was known as a kind, considerate, confident and cheerful man. He is remembered fondly.

-Grandmother lost her sight for 3 weeks following his death. They had been very close, as he was her first born.

- 1942: the family were informed that he was missing. Grandmother knew that something was wrong, and wrote to the army to find out more.

- Grandmother was invited to Westminster Abbey for a commemoration service, but was only given one ticket.

- Herbert has a plaque in Saint Martin's Church in Cardiff

- He had 2 brothers in the army and 2 in the RAF
Additional file 4 of CircMEMO1 modulates the promoter methylation and expression of TCF21 to regulate hepatocellular carcinoma progression and sorafenib treatment sensitivity
Creators: name: Dong, Zhao-Ru
name: Ke, Ai-Wu
name: Li, Tao
name: Cai, Jia-Bing
name: Yang, Ya-fei
name: Zhou, Wei
name: Shi, Guo-Ming
name: Fan, Jia
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Table S1 The Sequences of RT-PCR Primers
Anderson localization in generalized discrete time quantum walks
Creators: name: Vakulchyk, I.
name: Fistul, M. V.
name: Qin, P.
name: Flach, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study Anderson localization in a generalized discrete time quantum walk - a unitary map related to a Floquet driven quantum lattice. It is controlled by a quantum coin matrix which depends on four angles with the meaning of potential and kinetic energy, and external and internal synthetic flux. Such quantum coins can be engineered with microwave pulses in qubit chains. The ordered case yields a two-band eigenvalue structure on the unit circle which becomes completely flat in the limit of vanishing kinetic energy. Disorder in the external magnetic field does not impact localization. Disorder in all the remaining angles yields Anderson localization. In particular, kinetic energy disorder leads to logarithmic divergence of the localization length at spectral symmetry points. Strong disorder in potential and internal magnetic field energies allows to obtain analytical expressions for spectrally independent localization length which is highly useful for various applications.
description: 11 pages, 14 figures
2-Segal spaces as invertible infinity-operads
Creators: name: Walde, Tashi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18G30, 18D50

description: We exhibit the simplex category $Δ$ and Segal's category $Γ$ as $\infty$-categorical localizations of the dendroidal categories $Ω_π$ and $Ω$ introduced by Moerdijk and Weiss. As an application we obtain an equivalence of $\infty$-categories between invertible $\infty$-operads and the $2$-Segal spaces of Dyckerhoff and Kapranov. Finally, we describe a cyclic version of the dendroidal category and explain how it $\infty$-localizes to Connes's cyclic category $Λ$.
description: 25 pages. v5: restructured the paper to improve the presentation; added missing assumption to the key lemma; published
Alice Douglas: Wartime in South Shields
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Alice Douglas's husband was killed in the Navy in 1940, leaving her a widow with two young children to support. She went to work in Brigham's Dock in South Shields as a "Chipper and Scraper" which involved clearing barnacles off the bottom of ships; she was promoted to being a driver. She earned seven pounds a week, a good wage, but when the men returned after war, she had to leave the docks.Because of rationing, fruit was hard to get. "One of her tales she often told was my eldest brother, who must've been about four at the time, she asked him what he wanted for his birthday and he said he wanted a rosy apple and she said he might as well have asked for the moon." Fortunately, one of the foreign ships had some apples: "she said his face when she took the apple in it was just like magic." "And another time she got a banana and they said she was trying to poison them! They'd never seen a banana before."Alice did not like the air raid shelter, so she became a fire watcher with the Air Raid Wardens.During one of the raids, Alice thought her house had taken a direct hit, which it had not but all the soot had come down from the chimney into the house:"the whole of the downstairs was coated in soot. So she was on all weekend and all her laundry, that she sort of ironed and was in cupboards at the side she had to wash it all. She was on all weekend cleaning the house. And I do remember as a little girl that the ceiling, the soot stains, no matter what she painted the ceiling with the soot, the stains came through."During one of the air raids on Horsley Hill in South Shields: "my mam ducked and fell right down the stairs. Landed at the bottom, but managed to keep the baby up in the air until she landed and she said for the whole of the air raid, she just sat and laughed at the bottom of the stairs that she'd been so stupid!"Because of the close relationship with the Norwegian fishing fleet during the war, the Norwegian Government after the war offered a holiday to Alice's son and provided him with clothing."There was a general dealer's come fruit shop at Horsley Hill and my mam and my grandmother didn't use sugar a lot. They didn't put sugar in their tea or anything like that. So they had a little black market thing going where she would give her sugar ration to the people who owned the shop and they would give her fruit or whatever commodity she would want for the children."Audio and transcription attached.
The ferroelectric nematic phase: An optimum liquid crystal candidate for nonlinear optics
Creators: name: Folcia, C. L.
name: Ortega, J.
name: Vidal, R.
name: Sierra, T.
name: Etxebarria, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Materials that exhibit high nonlinear optical (NLO) susceptibilities are considered as promising candidates for a wide range of photonic and electronic applications. Here we argue that the ferroelectric nematic (NF) materials have sufficient potentialities to become materials for the next-generation of NLO devices. We have carried out a study of the efficiency of optical second-harmonic generation in a prototype NF material, finding a nonlinear susceptibility of 5.6 pmV-1 in the transparent regime, one of the highest ever reported in ferroelectric liquid crystals. Given the fact that the studied molecule was not specifically designed for NLO applications we conclude there is still margin to obtain NF materials with enhanced properties that should allow their practical use.
description: 22 pages, 7 figures
Additional file 5 of CircMEMO1 modulates the promoter methylation and expression of TCF21 to regulate hepatocellular carcinoma progression and sorafenib treatment sensitivity
Creators: name: Dong, Zhao-Ru
name: Ke, Ai-Wu
name: Li, Tao
name: Cai, Jia-Bing
name: Yang, Ya-fei
name: Zhou, Wei
name: Shi, Guo-Ming
name: Fan, Jia
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Table S2 Association of Circular RNA MEMO1 Expression with Clinicopathological Parameters of HCC Patients
การวิจัยและพัฒนารูปแบบการปรับพฤติกรรมที่ไม่พึงประสงค์ และส่งเสริมพัฒนาการเด็กปฐมวัย
Creators: name: พนิตศรี ศรีเชื้อ
Publisher: name: คณะครุศาสตร์ มหาวิทยาลัยราชภัฏเลย
Year: 2023
Subjects: ทักษะสมอง EF
จิตตปัญญาศึกษา
การปรับพฤติกรรม
พฤติกรรมที่ไม่พึงประสงค์
ปฐมวัย

description: วารสารครุศาสตร์ มหาวิทยาลัยราชภัฏเลย, 17, 2, 1-14
Efficient microwave synthesis of flurbiprofen derivatives and their enhancement of efficacy in chronic inflammatory pain models and gastro-protective potential in post-operative model
Creators: name: Shah, Nisar Zamin
name: Khan, Ajmal
name: Halim, Sobia Ahsan
name: Avula, Satya Kumar
name: Islam, Nazar Ul
name: Khan, Imran
name: Karim, Nasiara
name: Kifayatullah, Muhammad
name: Khalid, Asaad
name: Alhazmi, Hassan A.
name: Abdalla, Ashraf N.
name: Kashtoh, Hamdy
name: Al-Harrasi, Ahmed
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mental Health

description: Present research was designed to synthesize and characterize the flurbiprofen derivatives and to evaluate their analgesic, anti-inflammatory and gastro-protective activities in post-operative and chronic inflammatory pain models. Flurbiprofen derivatives were produced by using three-step processes involving esterification, hydrazide production, and schiff base, each of which modified a different carboxyl group. All the newly synthesized flurbiprofen derivatives (NS5-NS8) were characterized by 1H NMR,13C NMR,19F NMR and HR-ESI-MS, and the post-operative, inflammatory pain and ulcerogenic activities were determined in well-established in-vivo animal models. To evaluate post-operative and inflammatory pain, various doses of compounds [1, 3, 10, and 30 mg/kg (bwt)] were used, while their ulcerogenic potential was assessed at doses of 100 and 150 mg/kg (bwt). The incisional damage linked pain was significantly (p < 0.001) reduced by derivatives at different doses in both the acute and repeated tests with decreased response of phologistic agent-induced inflammation. The stomach histology and biochemical features demonstrate that the synthesized derivatives have no potential to cause ulcerogenicity as compared to aspirin and flurbiprofen. Furthermore, docking shows that the hydrazide moiety of these compounds is crucial in interacting within COX-2 binding site. Therefore, the synthesized compounds exhibit strong analgesic and anti-inflammatory effects and a low risk of causing ulcers. These attributes render them potentially valuable therapeutic agents for the treatment of pathological disorders associated with inflammation and pain.
Molecular insights into substrate binding mechanism of undecaprenyl pyrophosphate with membrane integrated phosphatidyl glycerophosphate phosphatase B (PgpB) using molecular dynamics simulation approach
Creators: name: Kesherwani, Manish
name: Devadasan Velmurugan
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: Undecaprenyl phosphate (C55-P) acts as carrier lipid in the synthesis of peptidoglycan, which is de novo synthesized from dephosphorylation of undecaprenyl pyrophosphate (C55-PP). The phosphatidylglycerol phosphate phosphatase B (PgpB) catalyzes the dephosphorylation of C55-PP and forms C55-P. As no structural study has been made regarding the binding of C55-PP to PgpB, in the current study, in silico molecular docking, followed by 150 ns molecular dynamics simulation of the putative binding complex in membrane/solvent environment has been performed to understand conformational dynamics. Results are compared with simulated apo form and PE inhibitor-bound form. Analysis of correlated residual fluctuation network in apo form, C55-PP bound and PE inhibitor-bound form suggests that difference in dynamic coupling between TM domain and α2 and α3 helix of periplasmic domain provides ligand binding to facilitate catalysis or to show inhibitory activity. Distance distribution in catalytic residual pair, H207-R104; H207-R201 and H207-D211 which stabilizes phosphate-enzyme intermediate shows a narrow peak in 2.4–3.6 Å in substrate-bound compared to apo form. Binding interactions and binding free energy analyses complement the partial inhibition of PE where PE has less binding free energy compared to the C55-PP substrate as well as the difference in binding interaction with catalytic pocket. Thus, the present study provides how substrate binding couples the movement in TM domain and periplasmic domain which might help in the understanding of active site communication in PgpB. C55-PP phosphatase interactions with a catalytic pocket of PgpB provide new insight for designing drugs against bacterial infection.
XY model with competing higher-order interactions
Creators: name: Žukovič, Milan
name: Kalagov, Georgii
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study effects of competing pairwise higher-order interactions (HOI) with alternating signs and exponentially decreasing intensity on critical behavior of the XY model. It is found that critical properties of such a generalized model can be very different from the standard XY model and can strongly depend on whether the number of HOI terms is odd or even. Inclusion of any odd number of HOI terms results in two consecutive phase transitions to distinct ferromagnetic quasi-long-range order phases. Even number of HOI terms leads to two phase transitions only if the decay of the HOI intensities is relatively slow. Then the high-temperature transition to the ferromagnetic phase is followed by another transition to a peculiar competition-induced canted ferromagnetic phase. In the limit of an infinite number of HOI terms only one phase transition is confirmed, and under the conditions of fierce competition between the even and odd terms the transition temperature can be suppressed practically to zero.
description: 19 pages, 8 figures
ผลการใช้แชทบอทช่วยในการจัดการเรียนรู้แบบห้องเรียนกลับด้านสำหรับนักเรียนชั้นมัธยมศึกษาปีที่ 5
Creators: name: เอกภูมิ อิ่มอก
Publisher: name: คณะครุศาสตร์ มหาวิทยาลัยราชภัฏเลย
Year: 2023
Subjects: แชทบอท
ห้องเรียนกลับด้าน
วิทยาการคำนวณ
ผลสัมฤทธิ์ทางการเรียน

description: วารสารครุศาสตร์ มหาวิทยาลัยราชภัฏเลย, 17, 2, 15-26