cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterisation of chaos and mean-motion resonances in meteoroid streams -- Application to the Draconids and Leonids
Creators: name: Courtot, Ariane
name: Saillenfest, Melaine
name: Vaubaillon, Jérémie
name: Fouchard, Marc
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context. Dynamically linking a meteor shower with its parent body is challenging, and chaos in the dynamics of meteoroid streams may be one of the reasons. For a robust identification of parent bodies, it is therefore necessary to quantify the amount of chaos involved in the evolution of meteoroid streams. Aims. The characterisation of chaos in meteoroid streams thanks to chaos maps is still a new field of study. We aim to study two very different meteoroid streams, the Draconids and the Leonids, in order to obtain a general view of this topic. Methods. We use the method developed in a previous paper dedicated to Geminids, drawing chaos maps with the orthogonal fast Lyapunov indicator. We choose four particle size ranges to investigate the effect of non-gravitational forces. As the dynamics is structured by mean-motion resonances with planets, we compute the locations and widths of the resonances at play. We use semi-analytical formulas valid for any eccentricity and inclination and an arbitrary number of planets. Results. We pinpoint which mean-motion resonances with Jupiter play a major role in the dynamics of each meteoroid stream. We show how those resonances tend to trap mostly large particles, preventing them from meeting with Jupiter. We also study particles managing to escape those resonances, thanks to the gravitational perturbation of Saturn for example. Finally, we explain why non-gravitational forces do not disturb the dynamics much, contrary to what is observed for the Geminids.
description: Submited to A&A
Protogalactic Extension of the Parker Bound
Creators: name: Lewis, M. J.
name: Freese, Katherine
name: Tarle, Gregory
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the Parker bound on the galactic flux $\cal F$ of magnetic monopoles. By requiring that a small initial seed field must survive the collapse of the protogalaxy, before any regenerative dynamo effects become significant, we develop a stronger bound. The survival and continued growth of an initial galactic seed field $\leq 10^{-9}$G demand that ${\cal F} \leq 5 \times 10^{-21} (m/10^{17} {GeV}) {cm}^{-2} {sec}^{-1} {sr}^{-1}$. For a given monopole mass, this bound is four and a half orders of magnitude more stringent than the previous `extended Parker bound', but is more speculative as it depends on assumptions about the behavior of magnetic fields during protogalactic collapse. For monopoles which do not overclose the Universe ($Ω_m <1$), the maximum flux allowed is now $8 \times 10^{-19}$ cm^{-2} s^{-1} sr^{-1}, a factor of 150 lower than the maximum flux allowed by the extended Parker bound.
description: 9 pages, 1 eps figure
title: Optical In Situ Manipulation of the Plant Environment
Creators: name: Ge, Sisi
Publisher: name: University of Dundee
publisherIdentifier: https://ror.org/03h2bxq36
publisherIdentifierScheme: ROR
Year: 2022

description: Aims: Laser micromanipulation such as dissection or optical trapping enables remote physical modification of the activity of tissues, cells and organelles. To date, applications of laser manipulation to plant roots grown in soil have been limited. Here, we show laser manipulation can be applied in situ when plant roots are grown in transparent soil.

Methods: We have developed a Q-switched laser manipulation and imaging instrument to perform controlled dissection of roots and to study light-induced root growth responses. We performed a detailed characterisation of the properties of the cutting beams through the soil, studying dissection and optical ablation. Furthermore, we also studied the use of low light doses to control the root elongation rate of lettuce seedlings (Lactuca sativa) in air, agar, gel and transparent soil.

Results: We show that whilst soil inhomogeneities affect the thickness and circularity of the beam, those distortions are not inherently limiting. The ability to induce changes in root elongation or complete dissection of microscopic regions of the root is robust to substrate heterogeneity and microscopy set up and is maintained following the limited distortions induced by the transparent soil environment.

Conclusions: Our findings show that controlled in situ laser dissection of root tissues is possible with a simple and low-cost optical set-up. We also show that, in the absence of dissection, a reduced laser light power density can provide reversible control of root growth, achieving a precise “point and shoot” method for root manipulation.
Additional file 4 of Validation of neuromuscular blocking agent use in acute respiratory distress syndrome: a meta-analysis of randomized trials
Creators: name: Chang, Wei
name: Sun, Qin
name: Peng, Fei
name: Xie, Jianfeng
name: Qiu, Haibo
name: Yang, Yi
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 4. Risk of bias assessment of the included trials.
The Political Dimension of an Enterprise’s Collective Agency
Creators: name: De Lastic, Adélaïde
Publisher: name: Phenomenology and Mind
Year: 2019

description: What is the political dimension of an enterprise if it is taken as a collective agent? Referring to political collective agency, we can’t ignore the case of enterprises. Indeed, they have a collective agency, as we firstly point out in this article. The collective agency of the enterprise impacts the world in different ways that we secondly consider in this article. Enterprises have an impact on states, on citizens, on health, on the environment. They have an impact on employment and on the economy. As such, they contribute to the life of society. In the same way, law impacts them, but also consumers’ choices and local socio-economic context. In fact, enterprises must be concerned by corporate social responsibility, they have to care about human’s commons and this is a political issue without borders: it is today a prominent political question of equity for the citizen of the world. I offer an ontological account of political collective agency applied to the enterprise. According to this account, an enterprise is a specific kind of social object, which has several intrinsic properties. Put together these properties enable the enterprise to act as a group with a definite political significance.
description: Phenomenology and Mind, No 16 (2019): Unpacking Political Agency: Equality, Vulnerability, Discrimination
Ponera contracta
Creators: name: Smith, F.
Publisher: name: British Museum
Year: 1851
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Ponera
Ponera contracta

description: 1. PONERA CONTRACTA. B. M.
Formica contracta, Latr. Hist. Nat. Fourm. 195, t. 7, f. 40. Fabr.
Syst. Piez. 410, 58. Ponera contracta, Latr. Gen. Crust. Ins. 128. St. Farg. Hist. Nat.
Ins. i. 195,8. Steph. Ill. Brit. Ent. Mand. Supp. 15, t. 42,
f. 2. Hab. - Britain.
description: Published as part of Smith, F., 1851, List of the specimens of British animals in the collection of the British Museum. Part VI. - Hymenoptera Aculeata., London :British Museum on page 6
Analysis of the vegetation zones and types in the European part of Russia
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Student Practical Report Nr. 13 for the Course 'Environment Maps'. Bachelor's (BSc) studies at Lomonosov Moscow State University
Harmonic chain driven by active Rubin bath: transport properties and steady-state correlations
Creators: name: Sarkar, Ritwick
name: Santra, Ion
name: Basu, Urna
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Characterizing the properties of an extended system driven by active reservoirs is a question of increasing importance. Here we address this question in two steps. We start by investigating the dynamics of a probe particle connected to an `active Rubin bath' -- a linear chain of overdamped run-and-tumble particles. We derive exact analytical expressions for the effective noise and dissipation kernels, acting on the probe, and show that the active nature of the bath leads to a modified fluctuation-dissipation relation. In the next step, we study the properties of an activity-driven system, modeled by a chain of harmonic oscillators connected to two such active reservoirs at the two ends. We show that the system reaches a nonequilibrium stationary state (NESS), remarkably different from that generated due to a thermal gradient. We characterize this NESS by computing the kinetic temperature profile, spatial and temporal velocity correlations of the oscillators, and the average energy current flowing through the system. It turns out that, the activity drive leads to the emergence of two characteristic length scales, proportional to the activities of the reservoirs. Strong signatures of activity are also manifest in the anomalous short-time decay of the velocity autocorrelations. Finally, we find that the energy current shows a non-monotonic dependence on the activity drive and reversal in direction, corroborating previous findings.
Analysis of the synoptic weather charts on the meteorological website 'National weather service NORTHWEST'
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Student Practical Report Nr.7 for the Course 'Environment Maps'. Bachelor's (BSc) studies at Lomonosov Moscow State University
Physics-guided neural networks for inversion-based feedforward control applied to hybrid stepper motors
Creators: name: Fan, Daiwei
name: Bolderman, Max
name: Koekebakker, Sjirk
name: Butler, Hans
name: Lazar, Mircea
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Rotary motors, such as hybrid stepper motors (HSMs), are widely used in industries varying from printing applications to robotics. The increasing need for productivity and efficiency without increasing the manufacturing costs calls for innovative control design. Feedforward control is typically used in tracking control problems, where the desired reference is known in advance. In most applications, this is the case for HSMs, which need to track a periodic angular velocity and angular position reference. Performance achieved by feedforward control is limited by the accuracy of the available model describing the inverse system dynamics. In this work, we develop a physics-guided neural network (PGNN) feedforward controller for HSMs, which can learn the effect of parasitic forces from data and compensate for it, resulting in improved accuracy. Indeed, experimental results on an HSM used in printing industry show that the PGNN outperforms conventional benchmarks in terms of the mean-absolute tracking error.
Mutilla Linnaeus 1758
Creators: name: Smith, F.
Publisher: name: British Museum
Year: 1851
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Mutilla

description: 1. MUTILLA
Mutilla, Linn. Syst. Nat. 966, 1766.
description: Published as part of Smith, F., 1851, List of the specimens of British animals in the collection of the British Museum. Part VI. - Hymenoptera Aculeata., London :British Museum on page 6
Dynamical Symmetry Breaking in Supersymmetric SU(n_c) and USp(2n_c) Gauge Theories
Creators: name: Carlino, Giuseppe
name: Konishi, Kenichi
name: Murayama, Hitoshi
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find the phase and flavor symmetry breaking pattern of each N=1 supersymmetric vacuum of SU(n_c) and USp(2 n_c) gauge theories, constructed from the exactly solvable N=2 theories by perturbing them with small adjoint and generic bare hypermultiplet (quark) masses. In SU(n_c) theories with n_f \leq n_c the vacua are labelled by an integer r, in which the flavor U(n_f) symmetry is dynamically broken to U(r) \times U(n_f-r) in the limit of vanishing bare hyperquark masses. In the r=1 vacua the dynamical symmetry breaking is caused by the condensation of magnetic monopoles in the n_f representation. For general r, however, the monopoles in the {}_{n_f}C_r representation, whose condensation could explain the flavor symmetry breaking but would produce too-many Nambu--Goldstone multiplets, actually "break up" into "magnetic quarks": the latter with nonabelian interactions condense and induce confinement and dynamical symmetry breaking. In USp(2n_c) theories with n_f \leq n_c + 1, the flavor SO(2n_f) symmetry is dynamically broken to U(n_f), but with no description in terms of a weakly coupled local field theory. In both SU(n_c) and USp(2 n_c) theories, with larger numbers of quark flavors, besides the vacua with these properties, there exist also vacua in free magnetic phase, with unbroken global symmetry.
description: 90 pages, typos fixed
Scalar-tensor nonlocal gravity
Creators: name: Tian, Shuxun
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In order to explain the late-time cosmological acceleration, we propose a new pure geometric gravity based on Deser-Woodard theory, in which the expansion of a matter-dominated universe can be accelerating. This new theory behaves as well as general relativity in solar system and gravitational waves, which is an important improvement over Deser-Woodard nonlocal gravity. Especially, for the simplest case, theoretical considerations determine all the parameters that appear in the Lagrangian.
description: 5 pages, accepted for publication in PRD
Couplings between generalized gauge fields
Creators: name: Garcia, J. Antonio
name: Knaepen, Bernard
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the BRST field-antifield construction for generalized gauge fields consisting of massless mixed representations of the Lorentz Group and we calculate all the strictly gauge invariant interactions between them. All these interactions are higher derivative terms constructed out from the derivatives of the curl of field strength.
description: 13 pages, Latex, requires multibox.sty
A model for the wind-driven current in the wavy oceanic surface layer: apparent friction velocity reduction and roughness length enhancement
Creators: name: Teixeira, Miguel A. C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: A simple analytical model is developed for the current induced by the wind and modified by surface wind-waves in the oceanic surface layer, based on a first-order turbulence closure and including the effect of a vortex force representing the Stokes drift of the waves. The shear stress is partitioned between a component due to shear in the current, which is reduced at low turbulent Langmuir number ($La_t$), and a wave-induced component, which decays over a depth proportional to the dominant wavelength. The model reproduces the apparent reduction of the friction velocity and enhancement of the roughness length estimated from current profiles, detected in a number of studies. These effects are predicted to intensify as $La_t$ decreases, and are entirely attributed to non-breaking surface waves. The current profile becomes flatter for low $La_t$ owing to a smaller fraction of the total shear stress being supported by the current shear. Comparisons of the model with the comprehensive dataset provided by the laboratory experiments of Cheung and Street show encouraging agreement, with the current speed decreasing as the wind speed increases (corresponding to decreasing $La_t$), if the model is adjusted to reflect the effects of a full wave spectrum on the intensity and depth of penetration of the wave-induced stress. A version of the model where the shear stress decreases to zero over a depth consistent with the measurements accurately predicts the surface current speed. These results contribute towards developing physically-based momentum flux parameterizations for the wave-affected boundary layer in ocean circulation models.
description: 13 pages, 8 figures, submitted to Journal of Physical Oceanography
Beyond Linear Response: Equivalence between Thermodynamic Geometry and Optimal Transport
Creators: name: Zhong, Adrianne
name: DeWeese, Michael R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A fundamental result of thermodynamic geometry is that the optimal, minimal-work protocol that drives a nonequilibrium system between two thermodynamic states in the slow-driving limit is given by a geodesic of the friction tensor, a Riemannian metric defined on control space. For overdamped dynamics in arbitrary dimensions, we demonstrate that thermodynamic geometry is equivalent to $L^2$ optimal transport geometry defined on the space of equilibrium distributions corresponding to the control parameters. We show that obtaining optimal protocols past the slow-driving or linear response regime is computationally tractable as the sum of a friction tensor geodesic and a counterdiabatic term related to the Fisher information metric. These geodesic-counterdiabatic optimal protocols are exact for parameteric harmonic potentials, reproduce the surprising non-monotonic behavior recently discovered in linearly-biased double well optimal protocols, and explain the ubiquitous discontinuous jumps observed at the beginning and end times.
description: Main text made more concise, two SM sections moved to Appendices. Main text has 8 pages, 2 figures; supplementary material has 6 pages, 2 figures. (PDF in v3 did not render.)
Phenomenology of Social Integration and Social Exclusion. An Essential Task of Political Collective Agency
Creators: name: Di Feo, Marco
Publisher: name: Phenomenology and Mind
Year: 2019

description: In this paper the author is going to talk about an essential task of political agency: social integration. He analyzes it from a phenomenological perspective, identifying its essential elements in order to achieve an eidetic view of it. The author roots the analysis of social integration in a stratified view of the social world that appears essentially composed of four different forms of social interaction: community interaction, characterized by solidarity relationships; territorial interaction, characterized by “conflicting” relationships (polemos); social interaction, based on standard models of behavior; and institutional interaction, based on laws that govern the public life. Social integration is stratified into these four forms of intersubjective life and is fully achieved only if it allows a real state of belonging and an actual participation in each of them. The policy plays a crucial role because integration is often a critical process that can cause social conflicts and that can not simply be left to the sensibility and will of those who live in the various contexts. Political agency should coordinate normative and cultural actions, so that norms are not simply imposed, but are assimilated by a citizenship aware of the social, ethical and political value of integration.
description: Phenomenology and Mind, No 16 (2019): Unpacking Political Agency: Equality, Vulnerability, Discrimination
Mutilla Linnaeus 1758
Creators: name: Smith, F.
Publisher: name: British Museum
Year: 1851
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Mutilla

description: 1. Mutilla. Europaea. B. M.
Mutilla Europaea, Linn. Faun. Suec. 1727, [[queen]]. Sulz. Gesch. Ins.
t. 27, f. 23, [[male]], 24, [[queen]]. Schrank, Ins. Aust. 415,839, [[queen]]. Oliv.
Enc. Meth. viii. 57, 15. Rossi, Faun. Etrus. ii. 114, 939.
Christ. Hym. 147, t. 11, f. 1, [[male]], 2, [[queen]]. Don. Brit. Ins. vi. 77,
t. 212. Fab. Ent. Syst. ii. 368,9. Latr. Hist. Nat. 13,263.
Coqueb. Illust. i. 16,1. a, [[queen]], b, [[male]]. Panz. Faun. Germ. 76,
20, [[male]]. Shuck. Foss. Hym. 29, 1, [[male]], [[queen]]. St. Farg. Hist. Nat.
Ins. iii. 597, 3. Nyland, Act. Soc. Sc. Fenn. i. 8,1. Apicis Europa, Harr. Expos. 166, 18, t. 50, f. 18. Apicis Simile, Harr. Expos. 166,19, t 50, f. 19, [[queen]].
Hab. - Sandy districts (Nests of Bombi).
description: Published as part of Smith, F., 1851, List of the specimens of British animals in the collection of the British Museum. Part VI. - Hymenoptera Aculeata., London :British Museum on page 6
Compton Scattering by Static and Moving Media I. The Transfer Equation and Its Moments
Creators: name: Psaltis, Dimitrios
name: Lamb, Frederick K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Compton scattering of photons by nonrelativistic particles is thought to play an important role in forming the radiation spectrum of many astrophysical systems. Here we derive the time-dependent photon kinetic equation that describes spontaneous and induced Compton scattering as well as absorption and emission by static and moving media, the corresponding radiative transfer equation, and their zeroth and first moments, in both the system frame and in the frame comoving with the medium. We show that it is necessary to use the correct relativistic differential scattering cross section in order to obtain a photon kinetic equation that is correct to first order in epsilon/m_e, T_e/m_e, and V, where epsilon is the photon energy, T_e and m_e are the electron temperature and rest mass, and V is the electron bulk velocity in units of the speed of light. We also demonstrate that the terms in the radiative transfer equation that are second-order in V usually should be retained, because if the radiation energy density is sufficiently large compared to the radiation flux, the effects of bulk Comptonization described by the terms that are second-order in V are at least as important as the effects described by the terms that are first-order in V, even when V is small. Our equations are valid for systems of arbitrary optical depth and can therefore be used in both the free-streaming and the diffusion regimes. We demonstrate that Comptonization by the electron bulk motion occurs whether or not the radiation field is isotropic or the bulk flow converges and that it is more important than thermal Comptonization if V^2 > 3 T_e/m_e.
description: 31 pages, accepted for publication in The Astrophysical Journal
title: Legislating corporate landlords: a comparative analysis of recent interventions in Los Angeles and San Francisco
Creators: name: Gustavussen, Mathilde Lind
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: Corporate landlords
subject: California
subject: tenant anti-harassment ordinance
subject: tenant right-to-organise
subject: tenant-landlord relationship
classificationCode: 301
subject: Soziologie, Anthropologie

description: Since 2008, financial actors and practices have become increasingly embedded within US rental housing markets. The growing consolidation of rental real estate into corporate hands has contributed to higher rents, more eviction filings, and more systematic tenant harassment aimed at forcing tenant turnover. Until recently, the influence of ‘corporate landlords’ on local housing markets was largely unregulated and unconstrained. This paper compares novel policy strategies to regulate the tenant-landlord relationship in two California cities, focusing on enforcement mechanisms and the role of the municipal government. Both policies, San Francisco’s ‘Union at Home Ordinance’ and Los Angeles’s ‘Tenant Anti-Harassment Ordinance’, were developed in response to public pressure to regulate corporate landlords and give tenants recourse in the context of unfettered rental housing financialisation. Using policy documents and data collected through the Los Angeles Housing Department and the UC Berkeley Labour Centre, alongside interviews with tenants and organisers who have utilized the ordinances, this paper argues that Union at Home–which is enforced by tenants as opposed to the municipal government, renders organising a ‘housing service’, and imposes an obligation on landlords to negotiate with tenants associations–appears to more effectively redress the power dynamics in the rental housing sector.
Ablenkung im Berufsfachschulunterricht mit Bring Your Own Device (BYOD). Eine empirische Analyse
Creators: name: Monnard, Patricia
Publisher: name: Zenodo
Year: 2023
Subjects: Ablenkung
Bring your own Device
BYOD
Selbstbestimmung
Autonomie
Kompetenzerleben
Motivation
Selbstwirksamkeit
Digitale Kompetenz
Rolle Lehrperson
medienpädagogische Kompetenzen
Unterrichtsmethoden
offener Unterricht
BSc Thesis

description: Die vorliegende Studie untersucht mittels eines primär quantitativen Ansatzes die Zusammenhänge zwischen intrinsischen und extrinsischen Faktoren und der Ablenkbarkeit von Lernenden im Berufsfachschulunterricht mit Bring Your Own Device (BYOD) im ersten Ausbildungsjahr. Die Studie konzentriert sich auf Auszubildende im Detailhandel und im kaufmännischen Bereich an Berufsfachschulen in der Ostschweiz. Der BYOD-Ansatz erfordert, dass Lernende ihre eigenen Laptops mitbringen und digitale Lehrmaterialien im Unterricht nutzen. Die Umstellung auf BYOD wird im Rahmen der neuen «KV-Reform» im Sommer 2023 eingeführt. 
Die Datenerhebung erfolgte mittels eines Online-Fragebogens. Die Ergebnisse zeigen einen signifikanten Zusammenhang zwischen den intrinsischen und extrinsischen Faktoren und der Ablenkbarkeit. Insbesondere die Stärkung von Selbstbestimmung und Selbstwirksamkeit kann die Ablenkbarkeit verringern. Eine sorgfältige Planung des Unterrichts und schrittweise Implementierung des BYOD-Modells sowie die medienpädagogischen Kompetenzen der Lehrpersonen spielen dabei eine entscheidende Rolle. Das Problem der Ablenkung ist nicht primär BYOD, sondern ein nicht spannender Unterricht. Im BYOD bestehen jedoch im Vergleich zum analogen Unterricht erweiterte Ablenkungsmöglichkeiten.
Die Studie legt nahe, dass zukünftige Forschungen den Begriff des «spannenden Unterrichts» präzisieren und die angemessene Dauer von Lehrerinputs definieren sollten. Die Ergebnisse zeigen, dass die Verbesserung der medienpädagogischen Kompetenzen der Lehrpersonen, ihre Einstellung zu digitalen Medien sowie die Stärkung der Selbstbestimmung und Selbstwirksamkeit der Lernenden zur Reduktion der Ablenkbarkeit beitragen können. Diese Erkenntnisse sind relevant für die Gestaltung effektiver BYOD-Unterrichtsmodelle und die Förderung der digitalen Kompetenzen von Lehrpersonen und Lernenden in einer zunehmend digitalisierten Welt.
Viscosity of Cobalt Melt: Experiment, Simulation, and Theory
Creators: name: Khusnutdinoff, R. M.
name: Mokshin, A. V.
name: Bel'tyukov, A. L.
name: Olyanina, N. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The results of experimental measurements, molecular dynamics simulation, and theoretical calculations of the viscosity of a cobalt melt in a temperature range of $1400-2000$~K at a pressure $p=1.5$~bar corresponding to an overcooled melt at temperatures of $1400-1768$~K and an equilibrium melt with temperatures from the range $1768-2000$~K are presented. Theoretical expressions for the spectral density of the time-dependent correlation function of the stress tensor $\tilde{S}(ω)$ and kinematic viscosity $ν$ determined from the frequency and thermodynamic parameters of the system are obtained. The temperature dependences of the kinematic viscosity for the cobalt melt are determined experimentally by the torsional oscillation method; numerically, based on molecular simulation data with the EAM potential via subsequent analysis of the time correlation functions of the transverse current in the framework of generalized hydrodynamics; and by the integral Kubo-Green relation; they were also determined theoretically with the Zwanzig-Mori memory functions formalism using a self-consistent approach. Good agreement was found between the results of theoretical calculations for the temperature dependence of the kinematic viscosity of the cobalt melt using experimental data and the molecular dynamics simulation results. From an analysis of the temperature dependence of the viscosity, we obtain an activation energy of $E=(5.38\pm0.02)\times10^{-20}$~J.
description: 16 pages, 4 figures
Anomaly-Free Gauged $U(1)'$ in Local Supersymmetry and Baryon-Number Violation
Creators: name: Chamseddine, A. H.
name: Dreiner, Herbi
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The supersymmetric extension of the standard model suffers from a problem of baryon-number violation. Discrete (and global) symmetries introduced to protect the proton are unstable under gravitational effects. We add a gauged $U(1)_X$ to the standard model gauge group $G_{SM}$ and require it to be anomaly-free. As new (chiral) superfields we only allow $G_{SM}$-singlets in order to maintain the good unification predictions. We find the most general set of solutions for the rational singlet charges. We embed our models in {\it local} supersymmetry and study the breaking of supersymmetry and $U(1)_X$ to determine $M_X$. We determine the full non-renormalizable and gauge invariant Lagrangian for the different solutions. We expect any effective theory to contain baryon- and lepton-number violating terms of dimension four suppressed by powers of $M_X/M_{Pl}$. The power is predicted by the $U(1)_X$ charges. We find consistency with the experimental bounds on the proton lifetime and on the neutrino masses. We also expect all supersymmetric models to have an unstable but longlived lightest supersymmetric particle. Consistency with underground experiments on upward going muons leads to stricter constraints than the proton decay experiments. These are barely satisfied.
description: 16 pages, latex, no figures
Topological and Geometric Obstructions on Einstein-Hilbert-Palatini Theories
Creators: name: Martins, Yuri X.
name: Biezuner, Rodney J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this article we introduce $A$-valued Einstein-Hilbert-Palatini functional ($A$-EHP) over a n-manifold $M$, where $A$ is an arbitrary graded algebra, as a generalization of the functional arising in the study of the first order formulation of gravity. We show that if $A$ is weak $(k,s)$-solvable, then $A$-EHP is non-null only if $n
Quasi-perpendicular fast magnetosonic shock with wave precursor in collisionless plasma
Creators: name: Moreno, Q.
name: Dieckmann, M. E.
name: Ribeyre, X.
name: d'Humières, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A one-dimensional particle-in-cell (PIC) simulation tracks a fast magnetosonic shock over time scales comparable to an inverse ion gyrofrequency. The magnetic pressure is comparable to the thermal pressure upstream. The shock propagates across a uniform background magnetic field with a pressure that equals the thermal pressure upstream at the angle 85$^\circ$ at a speed that is 1.5 times the fast magnetosonic speed in the electromagnetic limit. Electrostatic contributions to the wave dispersion increase its phase speed at large wave numbers, which leads to a convex dispersion curve. A fast magnetosonic precursor forms ahead of the shock with a phase speed that exceeds the fast magnetosonic speed by about $\sim 30 \%$. The wave is slower than the shock and hence it is damped.
description: 4 pages, 3 figures
Additional file 1 of Genome-wide survey and expression analysis of GRAS transcription factor family in sweetpotato provides insights into their potential roles in stress response
Creators: name: Zhang, Chengbin
name: Liu, Siyuan
name: Liu, Delong
name: Guo, Fen
name: Yang, Yiyu
name: Dong, Tingting
name: Zhang, Yi
name: Ma, Chen
name: Tang, Zixuan
name: Li, Feifan
name: Meng, Xiaoqing
name: Zhu, Mingku
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1: Characteristics of five excluded Ipomoea batatas proteins obtained by BLASTP search using the GRAS sequence information in Arabidopsis and rice.
INCA - Inductively Coupled Array Discharge
Creators: name: Ahr, Philipp
name: Tsankov, Tsanko V.
name: Kuhfeld, Jan
name: Czarnetzki, Uwe
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recently a novel concept for collisionless electron heating and plasma generation at low pressures was proposed theoretically (U Czarnetzki and Kh Tarnev, Phys. Plasmas 21 (2014) 123508). It is based on periodically structured vortex fields which produce certain electron resonances in velocity space. A more detailed investigation of the underlying theory is presented in a companion paper (U Czarnetzki, submitted to PSST (2018), arXiv:1806.00505). Here, the new concept is experimentally realized for the first time by the INCA (INductively Coupled Array) discharge. The periodic vortex fields are produced by an array of small planar coils. It is shown that the array can be scaled up to arbitrary dimensions while keeping its electrical characteristics. Stable operation at pressures around and below 1 Pa is demonstrated. The power coupling efficiency is characterized and an increase in the efficiency is observed with decreasing pressure. The spatial homogeneity of the discharge is investigated and the behaviour of the plasma parameters with power and pressure are presented. Linear scaling of the plasma density with power and pressure, typical for conventional inductive discharges, is observed. Most notably, the plasma potential and the corresponding mean ion energy show clear evidence for the presence of super energetic electrons, attributed to stochastic heating. In the stochastic heating mode, the electron distribution function becomes approximately Maxwellian but with increasing pressure it turns to the characteristic local distribution function known from classical inductive discharges. Large area processing or thrusters are possible applications for this new plasma source.
description: There is an accompanying theoretical paper by Czarnetztki (see abstract)
Weak hyperon decays in heavy baryon chiral perturbation theory: Renormalization and applications
Creators: name: Borasoy, B.
name: Muller, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The complete renormalization of the weak Lagrangian to chiral order q^2 in heavy baryon chiral perturbation theory is performed using heat kernel techniques. The results are compared with divergences appearing in the calculation of Feynman graphs for the nonleptonic hyperon decay Lambda -> p pi^- and an estimate for the size of the counterterm contributions to the s-wave amplitudes in nonleptonic hyperon decays is given.
description: 21 pages, 2 figures
title: Histoire abrégée de la défense-incendie à Apples de 1778 à 1930
title: Histoire abrégée de la défense-incendie à Apples de 1778 à 1930
titleType: AlternativeTitle
Creators: name: Besson, Frédéric
name: Besson, François
Publisher: name: François Besson
Year: 0

description: Texte repris en format WORD par François Besson à partir de la brochure de 1985.
Compound B Backfill Project
Creators: name: Spencer, Donald L.
name: Mulhern, Thomas D.
Year: 1993
Subjects: subject: Classic Period
valueUri: https://core.tdar.org/browse/temporal-keyword/125/classic-period
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Casa Grande Ruins National Monument
valueUri: https://core.tdar.org/browse/site-name/1435/casa-grande-ruins-national-monument
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Collections Research
valueUri: https://core.tdar.org/browse/investigation-type/3/collections-research
subject: Site Stewardship Monitoring
valueUri: https://core.tdar.org/browse/investigation-type/19/site-stewardship-monitoring
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Research Design / Data Recovery Plan
valueUri: https://core.tdar.org/browse/investigation-type/9/research-design-data-recovery-plan
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing
subject: Site Stabilization
valueUri: https://core.tdar.org/browse/investigation-type/11/site-stabilization

description: These documents regard a proposed backfill project for Compound B at the Casa Grande Ruins National Monument. There is a form for assessment of actions the would affect cultural resources. There are 2 detailed sketch maps, one showing the entire monument detailing all sites and features and another detailing Compound B and all its structures.
Mutilla calva Villers 1789
Creators: name: Smith, F.
Publisher: name: British Museum
Year: 1851
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Mutilla
Mutilla calva

description: 2. Mutilla calva. B. M.
Mutilla calva, Villers, Entom. iii. 343,9, t. 8, f. 34, [[queen]] Fab. Syst.
Piez. 438, 46, [[queen]]. Lat. Act. Soc. Hist. Nat. x. 8, [[queen]]. Oliv.
Enc. Meth. viii. 64, 56, [[queen]]. Coqueb. Illustr. 68, t. 16. f. 10, [[queen]].
Shuck. Foss. Hym. 30,2, [[male]], [[queen]]. St. Farg. Hist. Nat. Ins. iii.
607, 19. Nyland, Act. Soc. Sc. Fenn. 11, 3. Mutilla nigrita, Panz. 80,22, [[male]]. Oliv. Enc. Meth. viii. 65,59, [[male]].
Hab. - Shooter's Hill?
description: Published as part of Smith, F., 1851, List of the specimens of British animals in the collection of the British Museum. Part VI. - Hymenoptera Aculeata., London :British Museum on page 6
Coherent Perfect Absorption of Arbitrary Wavefronts at an Exceptional Point
Creators: name: Hörner, Helmut
name: Wild, Lena
name: Slobodkin, Yevgeny
name: Weinberg, Gil
name: Katz, Ori
name: Rotter, Stefan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A Coherent Perfect Absorber (CPA) exploits the interferometric nature of light to deposit all of a light field's incident energy into an otherwise weakly absorbing sample. The downside of this concept is that the necessary destructive interference in CPAs gets easily destroyed both by spectrally or spatially detuning the incoming light field. Each of these two limitations has recently been overcome by insights from exceptional-point physics and by using a degenerate cavity, respectively. Here, we show how these two concepts can be combined into a new type of cavity design, which allows broadband exceptional-point absorption of arbitrary wavefronts. We present two possible implementations of such a Massively Degenerate Exceptional-Point absorber and compare analytical results with numerical simulations.
description: 6 pages, 4 figures, with Supplementary Materials (29 pages)
Main directions and perspectives in the geobotanical mapping. Using GIS and remote sensing
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2018
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering

description: Student Practical Report Nr. 11 for the Course 'Environment Maps'. Bachelor's (BSc) studies at Lomonosov Moscow State University}
title: The Infrastructural Power of the Cayman Islands and the US State Power: A Financial Networks Centrality Approach
Creators: name: Goghie, Alexandru-Stefan
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: Cayman Islands
subject: United States
subject: infrastructural power
classificationCode: 320
subject: Politikwissenschaft

description: This paper explores the symbiotic relationship between the Cayman Islands and the centrality of the United States (US) in global financial networks, using their connection as a test case for a broader theory of how infrastructural power of states is achieved through transnational and networked strategies. The legal and financial infrastructure of the Cayman Islands is extensively used by US financial institutions. This infrastructure supports the development of a significantly US-centric fund industry, facilitating substantial investments into US capital markets. Additionally, it serves as a global conduit, channelling funds from regions such as Asia and Latin America into US markets, streamlining the process by which foreign investors acquire US securities, and supporting the development of complex USD-denominated financial products. This dynamic enhances the depth, liquidity, and complexity of US capital markets, thereby reinforcing US centrality in global financial networks and bolstering its geopolitical power through financial diplomacy, economic sanctions, regulatory influence, and control over critical financial infrastructure. The relationship underscores the infrastructural power of the Cayman Islands, whose financial and legal framework is essential for sustaining and amplifying US centrality. Consequently, this paper aims to integrate the transnational perspective on infrastructural power within the International Political Economy (IPE) and Geopolitics literature, demonstrating how the Cayman Islands function as a multifaceted networked site that strengthens, projects, and sustains US state power on a global scale.
From Phonological Rules to the Person Case Constraint. Monovalent vs. Bivalent Features in Grammar
Creators: name: Bafile, Laura
name: Manzini, M. Rita
Publisher: name: Quaderni di Linguistica e Studi Orientali
Year: 2019

description: In phonology, segmental content has been predominantly represented in terms of binary features. Although binary features may provide an elegant description of some segmental contrasts, it is far from clear that speaker/hearer’s knowledge about segments is organized in a binary way, as we illustrated with specific reference to vocalic alternations (metaphony etc.). The debate about binarity in phonology has a potential parallel in morphosyntax. While syntactic categories (N, V, v, T etc.) are monovalent, a model like Distributed Morphology depends on standard generative phonology for a number of formal properties, including the adoption of binary features. Thus 1st and 2nd persons are [+participant] while 3rd person is the absence of such properties, namely [-participant]. We argue that this is not the most economical set of assumptions, specifically in the explanation of the syntactic generalization known as the Person Case Constraint (PCC). For both phonology and morphology, we show that the inherent richness of binary features leads to formal and conceptual problems, such as the fact that atomic segments or lexical items have as complex a feature matrix as non-atomic ones.
description: Quaderni di Linguistica e Studi Orientali, Vol 5 (2019)
Testing models with non-minimal Higgs sector through the decay t->q+WZ
Creators: name: Cruz, J. L. Diaz
name: Falcon, D. A. Lopez
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the contribution of charged Higgs boson to the rare decay of the top quark t->q+WZ (q=d,s,b) in models with Higgs sector that includes doublets and triplets. Higgs doublets are needed to couple charged Higgs with quarks, whereas the Higgs triplets are required to generate the non-standard vertex HWZ at tree-level. It is found that within a model that respect the custodial SU(2) symmetry and avoids flavour changing neutral currents by imposing discrete symmetries, the decay mode t->b+WZ, can reach a branching ratio of order 0.0178, whereas the decay modes t->(d,s)+WZ, can reach a similar branching ratio in models where flavour changing neutral currents are suppressed by flavour symmetries.
description: Typeset using REVTEX and EPSF, 5 pag, 2 figures
Dark matter direct search sensitivity of the PandaX-4T experiment
Creators: name: Zhang, Hongguang
name: Abdukerim, Abdusalam
name: Chen, Xun
name: Chen, Yunhua
name: Cui, Xiangyi
name: Dong, Binbin
name: Fang, Deqing
name: Fu, Changbo
name: Giboni, Karl
name: Giuliani, Franco
name: Gu, Linhui
name: Guo, Xuyuan
name: Guo, Zhifan
name: Han, Ke
name: He, Changda
name: He, Shengming
name: Huang, Di
name: Huang, Xingtao
name: Huang, Zhou
name: Ji, Peng
name: Ji, Xiangdong
name: Ju, Yonglin
name: Li, Shaoli
name: Li, Yao
name: Lin, Heng
name: Liu, Huaxuan
name: Liu, Jianglai
name: Ma, Yugang
name: Mao, Yajun
name: Ni, Kaixiang
name: Ning, Jinhua
name: Ren, Xiangxiang
name: Shi, Fang
name: Tan, Andi
name: Wang, Anqing
name: Wang, Cheng
name: Wang, Hongwei
name: Wang, Meng
name: Wang, Qiuhong
name: Wang, Siguang
name: Wang, Xiuli
name: Wang, Xuming
name: Wang, Zhou
name: Wu, Mengmeng
name: Wu, Shiyong
name: Xia, Jingkai
name: Xiao, Mengjiao
name: Xie, Pengwei
name: Yan, Binbin
name: Yang, Jijun
name: Yang, Yong
name: Yu, Chunxu
name: Yuan, Jumin
name: Yue, Jianfeng
name: Zhang, Dan
name: Zhang, Tao
name: Zhao, Li
name: Zhou, Jifang
name: Zhou, Ning
name: Zhou, Xiaopeng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The PandaX-4T experiment, a four-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1 to 10 keV electron equivalent energy, the total electron recoil background is found to be 4.9x10^{-5} /(kg day keV). The nuclear recoil background in the same region is 2.8x10^{-7}/(kg day keV). With an exposure of 5.6 ton-years, the sensitivity of PandaX-4T could reach a minimum spin-independent dark matter-nucleon cross section of 6x10^{-48} cm^{2} at a dark matter mass of 40 GeV/c^{2}.
description: 11 pages, 13 figures