cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Method for Computing Inverse Parametric PDE Problems with Random-Weight Neural Networks
Creators: name: Dong, Suchuan
name: Wang, Yiran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We present a method for computing the inverse parameters and the solution field to inverse parametric PDEs based on randomized neural networks. This extends the local extreme learning machine technique originally developed for forward PDEs to inverse problems. We develop three algorithms for training the neural network to solve the inverse PDE problem. The first algorithm (NLLSQ) determines the inverse parameters and the trainable network parameters all together by the nonlinear least squares method with perturbations (NLLSQ-perturb). The second algorithm (VarPro-F1) eliminates the inverse parameters from the overall problem by variable projection to attain a reduced problem about the trainable network parameters only. It solves the reduced problem first by the NLLSQ-perturb algorithm for the trainable network parameters, and then computes the inverse parameters by the linear least squares method. The third algorithm (VarPro-F2) eliminates the trainable network parameters from the overall problem by variable projection to attain a reduced problem about the inverse parameters only. It solves the reduced problem for the inverse parameters first, and then computes the trainable network parameters afterwards. VarPro-F1 and VarPro-F2 are reciprocal to each other in a sense. The presented method produces accurate results for inverse PDE problems, as shown by the numerical examples herein. For noise-free data, the errors for the inverse parameters and the solution field decrease exponentially as the number of collocation points or the number of trainable network parameters increases, and can reach a level close to the machine accuracy. For noisy data, the accuracy degrades compared with the case of noise-free data, but the method remains quite accurate. The presented method has been compared with the physics-informed neural network method.
description: 40 pages, 8 figures, 34 tables
Marina Sauer, Die Bildhauerin Clara Rilke-Westhoff (1878-1954), Leben und Werk - Maike Bruhns, Anita Rée. Leben und Werk einer Hamburger Malerin (1885—1933)
Creators: name: Berger, Renate
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Marina Sauer, Die Bildhauerin Clara Rilke-Westhoff (1878-1954), Leben und Werk (mit Œuvre-Katalog). Bremen, Verlag H. M. Hauschild 1986. 611 S.; zahlreiche Schwarzweiß-Abbildungen. Maike Bruhns, Anita Rée. Leben und Werk einer Hamburger Malerin (1885—1933) (Veröffentlichungen des Vereins für Hamburgische Geschichte, Bd. XXIX). Hamburg, Verlag Verein für Hamburgische Geschichte 1986. 335 S.; zahlreiche Schwarzweiß- und Farbabbildungen.
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 41 Nr. 11 (1988): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 41 Nr. 11 (1988): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Mimosa
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa

description: 33. Mimosa pigra L. var. dehiscens (Barneby) Glazier & Mackinder
A common weedy species, especially of disturbed ruderal seasonally waterlogged habitats.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 216, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Physical Implications of the Extrapolation and Statistical Bootstrap of the Nucleon Structure Function Ratio $\frac{F_2^n}{F_2^p}$ for Mirror Nuclei $^3$He and $^3$H
Creators: name: Valenty, Hannah
name: West, Jennifer Rittenhouse
name: Benmokhtar, Fatiha
name: Higinbotham, Douglas W.
name: Parker, Asia
name: Seroka, Erin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A nuclear physics example of statistical bootstrap is used on the MARATHON data nucleon structure function ratio, $\frac{F_2^n}{F_2^p}$, in the quark momentum fraction $x_B\rightarrow0$ and $x_B\rightarrow1$ regions. The extrapolated $F_2$ ratio value as quark momentum fraction $x_B\rightarrow 1$ approaches 0.4 and this value is compared to theoretical predictions. The extrapolated ratio when $x_B\rightarrow 0$ favors the simple model of isospin symmetry with the complete dominance of seaquarks at low momentum fraction. At high-$x_B$, the proton quark distribution function ratio $d/u$ is derived from the $x\rightarrow 1$ ratio $\frac{F_2^n}{F_2^p}\rightarrow 0.4$ and found to be $d/u \rightarrow 1/6$. Our extrapolated values for both the $\frac{F_2^n}{F_2^p}$ ratio and the $d/u$ parton distribution function ratio most closely match perturbative QCD values from quark counting and helicity conservation arguments but still differ by roughly $7\%$. The mismatch to theoretical predictions may be ameliorated if two compatible models act simultaneously in the nucleon wavefunction. One such example is nucleon wavefunctions composed of a linear combination of a quark-diquark state and a 3-valence quark correlated state with coefficients that combine to give the extrapolated $F_2$ ratio of $0.4$.
Tafeln
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 41 Nr. 11 (1988): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
The ecological and conservation genetics of Garry oak (Quercus garryana Dougl. ex Hook))
Creators: name: Huebert, Colin A.
Publisher: name: University of British Columbia
Year: 2009

description: Garry oak (Quercus garryana Dougl. Ex Hook) is a deciduous tree endemic to Western North America. It is confined within Canada to only a few isolated locations in southwestern British Columbia (B.C.). Although accounting for less than 0.3% of British Columbia’s entire land coverage, Garry oak-associated ecosystems support tremendous biodiversity and are home to a large number of rare species in B.C. Populations have, however, been declining since European settlement. It is estimated that only 1-5% of pre-European Garry oak ecosystems remain uncompromised in B.C. today. However, species distribution models predict the area climatically appropriate for Garry oak to triple in B.C. by the 2080’s. Using a common garden experimental design, data regarding growth and biomass partitioning, bud phenology and cold hardiness were collected for two years from a total of 1700 individuals from 15 populations representing the species’ entire range. Data were used to assess genetic diversity and geographic differentiation (QST) for these quantitative traits. Results indicate relatively weak population differentiation for most traits. However, significant genetic clines exist for height, germinant emergence date and cold hardiness. Height and germinant emergence were strongly correlated with environmental variables associated with summer aridity (mean summer precipitation, summer heat:moisture index, mean warmest month temperature), while cold hardiness was strongly correlated with temperature differential (the difference between mean warmest month temperature and mean coldest month temperature) and mean warmest month temperature. Estimates of population differentiation for traits (QST) were relatively low for growth related traits, bud burst and bud set (0.07-0.13) and moderate (0.30) for cold hardiness and germinant emergence. Results suggest Garry oak is a species closely adapted to conditions of intense drought and are used to recommend seed transfer guidelines and conservation strategies for current and future climates in B.C. and elsewhere.
Mimosa piresii Barneby
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa piresii

description: 34. * Mimosa piresii Barneby
 Known to Barneby (1991) only from Amazonian Brazil. Now from a single collection in Bolivia: Dept. Beni, Prov. Itenez, Serrania San Simon, Rio Colorado, Arroyo Guizzely, 13°32´S, 62°02´W, Murillo 58 (K!).
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
A spectral boundary integral method for simulating electrohydrodynamic flows in viscous drops
Creators: name: Firouznia, Mohammadhossein
name: Bryngelson, Spencer H.
name: Saintillan, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A weakly conducting liquid droplet immersed in another leaky dielectric liquid can exhibit rich dynamical behaviors under the effect of an applied electric field. Depending on material properties and field strength, the nonlinear coupling of interfacial charge transport and fluid flow can trigger electrohydrodynamic instabilities that lead to shape deformations and complex dynamics. We present a spectral boundary integral method to simulate droplet electrohydrodynamics in a uniform electric field. All physical variables, such as drop shape and interfacial charge density, are represented using spherical harmonic expansions. In addition to its exponential accuracy, the spectral representation affords a nondissipative dealiasing method required for numerical stability. A comprehensive charge transport model, valid under a wide range of electric field strengths, accounts for charge relaxation, Ohmic conduction, and surface charge convection by the flow. A shape reparametrization technique enables the exploration of significant droplet deformation regimes. For low-viscosity drops, the convection by the flow drives steep interfacial charge gradients near the drop equator. This introduces numerical ringing artifacts we treat via a weighted spherical harmonic expansion, resulting in solution convergence. The method and simulations are validated against experimental data and analytical predictions in the axisymmetric Taylor and Quincke electrorotation regimes.
Mimosa polycarpa var. subandina Kunth
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa

description: 35. Mimosa polycarpa Kunth. var subandina Barneby
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Clouds in the atmospheres of extrasolar planets. III. Impact of low and high-level clouds on the reflection spectra of Earth-like planets
Creators: name: Kitzmann, D.
name: Patzer, A. B. C.
name: von Paris, P.
name: Godolt, M.
name: Rauer, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the influence of low-level water and high-level ice clouds on low-resolution reflection spectra and planetary albedos of Earth-like planets orbiting different types of stars in both the visible and near infrared wavelength range. We use a one-dimensional radiative-convective steady-state atmospheric model coupled with a parametric cloud model, based on observations in the Earth's atmosphere to study the effect of both cloud types on the reflection spectra and albedos of Earth-like extrasolar planets at low resolution for various types of central stars. We find that the high scattering efficiency of clouds substantially causes both the amount of reflected light and the related depths of the absorption bands to be substantially larger than in comparison to the respective clear sky conditions. Low-level clouds have a stronger impact on the spectra than the high-level clouds because of their much larger scattering optical depth. The detectability of molecular features in near the UV - near IR wavelength range is strongly enhanced by the presence of clouds. However, the detectability of various chemical species in low-resolution reflection spectra depends strongly on the spectral energy distribution of the incident stellar radiation. In contrast to the reflection spectra the spectral planetary albedos enable molecular features to be detected without a direct influence of the spectral energy distribution of the stellar radiation. Here, clouds increase the contrast between the radiation fluxes of the planets and the respective central star by about one order of magnitude, but the resulting contrast values are still too low to be observable with the current generation of telescopes.
description: accepted for publication in A&A
On the radiality of constrained minimizers to the Schroedinger-Poisson-Slater energy
Creators: name: Georgiev, Vladimir
name: Prinari, Francesca
name: Visciglia, Nicola
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the radial symmetry of minimizers to the Schroedinger-Poisson-Slater (S-P-S) energy.
Prospects of testing late-time cosmology with weak lensing of gravitational waves and galaxy surveys
Creators: name: Balaudo, Anna
name: Garoffolo, Alice
name: Martinelli, Matteo
name: Mukherjee, Suvodip
name: Silvestri, Alessandra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak lensing of gravitational waves (GW-WL) and the galaxy fields. Without focusing on any specific GW detector configuration, we benchmark the requirements for the high-precision measurement of cosmological parameters by considering several scenarios, varying the number of detected GW events and the uncertainty on the inference of the source luminosity distance and redshift. We focus on $Λ$CDM and scalar-tensor cosmologies, using the Effective Field Theory formalism as a unifying language. We find that, in some of the explored setups, GW-WL contributes to the galaxy signal by doubling the accuracy on non-$Λ$CDM parameters, allowing in the most favourable scenarios to reach even percent and sub-percent level bounds. Though the most extreme cases presented here are likely beyond the observational capabilities of currently planned individual GW detectors, we show nonetheless that - provided that enough statistics of events can be accumulated - GW-WL offers the potential to become a cosmological probe complementary to LSS surveys, particularly for those parameters that cannot be constrained by other GW probes such as standard sirens.
description: 43 pages, 12 figures
Meeting experimental challenges to physics of network glasses: assessing role of sample homogeneity
Creators: name: Bhosle, S.
name: Gunasekera, K.
name: Chen, P.
name: Boolchand, P.
name: Micoulaut, M.
name: Massabrio, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We introduce a Raman profiling method to track homogenization of Ge$_x$Se$_{100-x}$ melts in real time, and show that 2 gram melts reacted at 950°C in high vacuum homogenize in 168 hours on a scale of 10μm. Homogenization of melts is precursive to self-organization of glasses. In the present glasses, compositional variation of Raman active corner-sharing mode frequency of GeSe$_4$ units, molar volumes, and the enthalpy of relaxation at Tg, reveal the rigidity (xc(1)= 19.5(3)%) and the stress (xc(2) = 26.0(3)%) transitions to be rather sharp (Δx < 0.6%). These abrupt elastic phase transitions are intrinsic to these materials and have a direct bearing on physics of glasses.
Mimosa polycephala var. taxifolia Barneby
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa polycephala
Mimosa polycephala benth. var. taxifolia barneby

description: 36. * Mimosa polycephala Benth. var. taxifolia Barneby
 Not recorded from Bolivia by Barneby (1991), but now known from several collections (T.J. Killeen et al 7449 (K) a 1.8 m shrub from the Noel Kempff National Park, Campamento ‘Laja’, on path from Geobol, 15 km SE of Los Fierros in semideciduous forest at 14°33´58´´S, 60°46´22´´W, 400 m, also J.R.I. Wood 26795 and 26822, LPB, K, USZ, from the same area) from the dry forests on the flanks of the southern end of the Serranía Huanchaca, where it is locally common.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
The Kerr-Newman/CFTs Correspondence
Creators: name: Chen, Chiang-Mei
name: Sun, Jia-Rui
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article, we review recent studies on multiple dual 2D CFT descriptions of the Kerr-Newman black hole, in terms of the Kerr/CFT and Reissner-Nordström/CFT correspondences. A microscopic hair conjecture is suggested.
description: 10 pages, contribution to the 2011 Shanghai Asia-Pacific School and Workshop on Gravitation
Absence of Wigner molecules in one-dimensional few-fermion systems with short-range interactions
Creators: name: Wang, Jing-Jing
name: Li, Wei
name: Chen, Shu
name: Xianlong, Gao
name: Rontani, Massimo
name: Polini, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study by means of exact-diagonalization techniques the ground state of a few-fermion system with strong short-range repulsive interactions trapped by a harmonic potential in one spatial dimension. Even when the ground-state density profile displays at strong coupling very well pronounced Friedel oscillations with a `4k_F periodicity', the pair correlation function does not show any signature of Wigner-molecule-type correlations. For the sake of comparison, we present also numerical results for few-electron systems with Coulomb interactions, demonstrating that their ground state at strong coupling is, on the contrary, a Wigner molecule.
description: 5 pages, 4 figures
Recurrent Novae And Type Ia Supernova Progenitors
Creators: name: Pagnotta, Ashley
Publisher: name: Zenodo
Year: 2012
Subjects: novae
recurrent novae
type Ia supernovae
type Ia supernova progenitors
supernova progenitors
cataclysmis variables

description: We investigated two types of stellar explosions, recurrent novae (RNe) and Type Ia supernovae (SNe Ia). SNe Ia are the most useful distance markers in astrophysics, but we do not know the identity of their progenitor systems. RNe are good progenitor candidates that consist of a white dwarf (WD) that accretes material from a companion star. The material builds on the surface of the WD until a runaway thermonuclear eruption is triggered, which ejects the accreted material and causes the system to brighten dramatically. We studied the demographics of the nova population and concluded that approximately 25% of classical novae are actually RNe for which only one eruption has been discovered. Importantly, this means that there are enough RNe in our galaxy to provide a significant fraction of the SNe Ia. We present a list of good RN candidates; for one such system, V2487 Ophiuchi, we sought and found a previous eruption in the astronomical plate archives.

We examined two known RNe in detail. T Pyxidis has a unique shell; we used observations of the shell and central star to produce a new model for the long-term evolution of the system, which will never become a supernova. U Scorpii erupted in 2010 as predicted. We led a worldwide collaboration of astronomers that discovered the eruption and comprehensively observed it from start to finish. We discovered three new phenomena and were able to make the best-yet measurement of the amount of mass ejected during the eruption.

We searched the centers of nearby SN Ia remnants looking for ex-companion stars left behind after the WD exploded centuries ago. For one remnant, SNR 0509-67.5, we can definitively state that there are no ex-companion stars in the center of the remnant and therefore the system must have consisted of two WDs that collided to form the SN Ia. The other nearby remnants have possible ex-companion stars; more observations are needed to determine which, if any, are the true ex-companions. Some large fraction of the SNe Ia must come from double-WD systems, but there is a possibility that RNe provide a significant fraction as well.
Isomorphisms of types in the presence of higher-order references
Creators: name: Clairambault, Pierre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We investigate the problem of type isomorphisms in a programming language with higher-order references. We first recall the game-theoretic model of higher-order references by Abramsky, Honda and McCusker. Solving an open problem by Laurent, we show that two finitely branching arenas are isomorphic if and only if they are geometrically the same, up to renaming of moves (Laurent's forest isomorphism). We deduce from this an equational theory characterizing isomorphisms of types in a finitary language with higher order references. We show however that Laurent's conjecture does not hold on infinitely branching arenas, yielding a non-trivial type isomorphism in the extension of this language with natural numbers.
description: Twenty-Sixth Annual IEEE Symposium on Logic In Computer Science (LICS 2011), Toronto : Canada (2011)
Runaway Stars and the Escape of Ionizing Radiation from High-Redshift Galaxies
Creators: name: Conroy, Charlie
name: Kratter, Kaitlin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Approximately 30% of all massive stars in the Galaxy are runaways with velocities exceeding 30 km/s. Their high speeds allow them to travel ~0.1-1 kpc away from their birth place before they explode at the end of their several Myr lifetimes. At high redshift, when galaxies were much smaller than in the local universe, runaways could venture far from the dense inner regions of their host galaxies. From these large radii, and therefore low column densities, much of their ionizing radiation is able to escape into the intergalactic medium. Runaways may therefore significantly enhance the overall escape fraction of ionizing radiation, fesc, from small galaxies at high redshift. We present simple models of the high-redshift runaway population and its impact on fesc as a function of halo mass, size, and redshift. We find that the inclusion of runaways enhances fesc by factors of ~1.1-8, depending on halo mass, galaxy geometry, and the mechanism of runaway production, implying that runaways may contribute 50-90% of the total ionizing radiation escaping from high-redshift galaxies. Runaways may therefore play an important role in reionizing the universe.
description: 9 pages, 4 figures, resubmitted to ApJ after responding to referee report
ENGLISH IN THE EDUCATION SYSTEM OF RUSSIA AND UZBEKISTAN
Creators: name: Solijonov, Muxammadjon
name: Valiyev, Muhammad Ali
name: Ro`zmatjonova, Mahsumaxon
name: Abdusalomov, Muxammadqodir
Publisher: name: Zenodo
Year: 2023

description: The article examines the processes of the spread of the English language and the formation of the English-speaking environment by the example of the inclusion of foreign language disciplines in the education system of Russia and Uzbekistan. Approaches to teaching foreign languages and language selection in pre-revolutionary Russia, during the Soviet Union and the post-Soviet period are shown. The concepts of introducing English into the education system of the Republic of Uzbekistan within the framework of the trilingualism program are presented. New technologies and mass media affect the field of education, and the potential of new technologies is such that they can radically change the practice of teaching foreign languages. It is globalization that retains a significant impact on the study of foreign languages.
Intertwined magnetism and charge density wave order in kagome FeGe
Creators: name: Teng, Xiaokun
name: Oh, Ji Seop
name: Tan, Hengxin
name: Chen, Lebing
name: Huang, Jianwei
name: Gao, Bin
name: Yin, Jia-Xin
name: Chu, Jiun-Haw
name: Hashimoto, Makoto
name: Lu, Donghui
name: Jozwiak, Chris
name: Bostwick, Aaron
name: Rotenberg, Eli
name: Granroth, Garrett E.
name: Yan, Binghai
name: Birgeneau, Robert J.
name: Dai, Pengcheng
name: Yi, Ming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electron correlations often lead to emergent orders in quantum materials. Kagome lattice materials are emerging as an exciting platform for realizing quantum topology in the presence of electron correlations. This proposal stems from the key signatures of electronic structures associated with its lattice geometry: flat band induced by destructive interference of the electronic wavefunctions, topological Dirac crossing, and a pair of van Hove singularities (vHSs). A plethora of correlated electronic phases have been discovered amongst kagome lattice materials, including magnetism, charge density wave (CDW), nematicity, and superconductivity. These materials can be largely organized into two types: those that host magnetism and those that host CDW order. Recently, a CDW order has been discovered in the magnetic kagome FeGe, providing a new platform for understanding the interplay between CDW and magnetism. Here, utilizing angle-resolved photoemission spectroscopy, we observe all three types of electronic signatures of the kagome lattice: flat bands, Dirac crossings, and vHSs. From both the observation of a temperature-dependent shift of the vHSs towards the Fermi level as well as guidance via first-principle calculations, we identify the presence of the vHSs near the Fermi level (EF) to be driven by the development of underlying magnetic exchange splitting. Furthermore, we show spectral evidence for the CDW order as gaps that open on the near-EF vHS bands, as well as evidence of electron-phonon coupling from a kink on the vHS band together with phonon hardening observed by inelastic neutron scattering. Our observation points to the magnetic interaction-driven band modification resulting in the formation of the CDW order, indicating an intertwined connection between the emergent magnetism and vHS charge order in this moderately-correlated kagome metal.
description: submitted on April 22, 2022
Resolving the Hubble tension
Creators: name: Ruff, James
Publisher: name: Zenodo
Year: 2025

description: This paper introduces a foundational resolution to the Hubble tension—reinterpreting the observed acceleration of cosmic expansion through the lens of temporal current and neutrino field effects. It shows that the apparent discrepancy in H₀ values arises from cumulative neutrino-photon interactions and a misapplication of the gravitational tensor in the cosmological constant. This model replaces dark energy with steady, principle-governed expansion, requiring no new physics beyond domain dynamics.
GaAs quantum dots under quasi-uniaxial stress: experiment and theory
Creators: name: Yuan, Xueyong
name: da Silva, Saimon F. Covre
name: Csontosova, Diana
name: Huang, Huiying
name: Schimpf, Christian
name: Reindl, Marcus
name: Lu, Junpeng
name: Ni, Zhenhua
name: Rastelli, Armando
name: Klenovsky, Petr
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The optical properties of excitons confined in initially-unstrained GaAs/AlGaAs quantum dots are studied as a function of a variable quasi-uniaxial stress. To allow the validation of state-of-the-art computational tools for describing the optical properties of nanostructures, we determine the quantum dot morphology and the in-plane components of externally induced strain tensor at the quantum dot positions. Based on these \textsl{experimental} parameters, we calculate the strain-dependent excitonic emission energy, degree of linear polarization, and fine-structure splitting using a combination of eight-band ${\bf k}\cdot{\bf p}$ formalism with multiparticle corrections using the configuration interaction method. The experimental observations are quantitatively well reproduced by our calculations and deviations are discussed.
Subalgebras and finitistic dimensions of Artin algebras
Creators: name: Zhang, Aiping
name: Zhang, Shunhua
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let $A$ be an Artin algebra. We investigate subalgebras of $A$ with certain conditions and obtain some classes of algebras whose finitistic dimensions are finite.
description: 13 pages. Accepted for publication in Acta Mathematica Scientia, 2011, 31B(5)
Mimosa pudica
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa

description: 37. Mimosa pudica L.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Number fluctuations of cold spatially split bosonic objects
Creators: name: Sakmann, Kaspar
name: Streltsov, Alexej I.
name: Alon, Ofir E.
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the number fluctuations of spatially split many-boson systems employing a theorem about the maximally and minimally attainable variances of an observable. The number fluctuations of many-boson systems are given for different numbers of lattice sites and both mean-field and many-body wave functions. It is shown which states maximize the particle number fluctuations, both in lattices and double-wells. The fragmentation of the states is discussed, and it is shown that the number fluctuations of some fragmented states are identical to those of fully condensed states.
description: 15 pages, no figures
Parallel computation of large power system networks using the multi-area Thévenin equivalents
Creators: name: Tomim, Marcelo Aroca
Publisher: name: University of British Columbia
Year: 2009

description: The requirements of today's power systems are much different from the ones of the systems of the past. Among others, energy market deregulation, proliferation of independent power producers, unusual power transfers, increased complexity and sensitivity of the equipments demand from power systems operators and planners a thorough understanding of the dynamic behaviour of such systems in order to ensure a stable and reliable energy supply. In this context, on-line Dynamic Security Assessment (DSA) plays a fundamental role in helping operators to predict the security level of future operating conditions that the system may undergo. Amongst the tools that compound DSA is the Transient Stability Assessment (TSA) tools, which aim at determining the dynamic stability margins of present and future operating conditions. The systems employed in on-line TSA, however, are very much simplified versions of the actual systems, due to the time-consuming transient stability simulations that are still at the heart of TSA applications. Therefore, there is an increasing need for improved TSA software, which has the capability of simulating bigger and more complex systems in a shorter lapse of time. In order to achieve such a goal, a reformulation of the Multi-Area Thévenin Equivalents (MATE) algorithm is proposed. The intent of such an algorithm is parallelizing the solution of the large sparse linear systems associated with transient stability simulations and, therefore, speeding up the overall on-line TSA cycle. As part of the developed work, the matrix-based MATE algorithm was re-evaluated from an electric network standpoint, which yielded the network-based MATE presently introduced. In addition, a performance model of the proposed algorithm is developed, from which a theoretical speedup limit of p/2 was deduced, where p is the number of subsystems into which a system is torn apart. Applications of the network-based MATE algorithm onto solving actual power systems (about 2,000 and 15,000 buses) showed the attained speedup to closely follow the predictions made with the formulated performance model, even on a commodity cluster built out of inexpensive out-of-the-shelf computers.
Mimosa rastrera Atahuachi & C. E. Hughes, sp. nov.
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa rastrera

description: 38. ** § Mimosa rastrera Atahuachi & C. E. Hughes sp. nov.
See new species description above.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
Nibelungenlied and Slovo o PLbKU igoreve: ein vergleich
Creators: name: Pade, Louis
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: PT 1603 S54 P32 1972 Microfilm
subject: Nibelungenlied
subject: Slovo o PLbKU Igoreve

description: Bibliography: p. 130-145.
Wave Leakage and Resonant Absorption in a Loop Embedded in a Coronal Arcade
Creators: name: Rial, S.
name: Arregui, I.
name: Terradas, J.
name: Oliver, R.
name: Ballester, J. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the temporal evolution of impulsively generated perturbations in a potential coronal arcade with an embedded loop. As the initial configuration we consider a coronal loop, represented by a density enhancement, which is unbounded in the ignorable direction of the arcade. The linearized time-dependent magnetohydrodynamic equations have been numerically solved in field-aligned coordinates and the time evolution of the initial perturbations has been studied in the zero-beta approximation. For propagation constrained to the plane of the arcade, the considered initial perturbations do not excite trapped modes of the system. This weakness of the model is overcome by the inclusion of wave propagation in the ignorable direction. The inclusion of perpendicular propagation produces two main results. First, damping by wave leakage is less efficient because the loop is able to act as a wave trap of vertical oscillations. Second, the consideration of an inhomogeneous corona enables the resonant damping of vertical oscillations and the energy transfer from the interior of the loop to the external coronal medium.
Compensating for non-linear distortions in controlled quantum systems
Creators: name: Singh, Juhi
name: Zeier, Robert
name: Calarco, Tommaso
name: Motzoi, Felix
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Predictive design and optimization methods for controlled quantum systems depend on the accuracy of the system model. Any distortion of the input fields in an experimental platform alters the model accuracy and eventually disturbs the predicted dynamics. These distortions can be non-linear with a strong frequency dependence so that the field interacting with the microscopic quantum system has limited resemblance to the input signal. We present an effective method for estimating these distortions which is suitable for non-linear transfer functions of arbitrary lengths and magnitudes provided the available training data has enough spectral components. Using a quadratic estimation, we have successfully tested our approach for a numerical example of a single Rydberg atom system. The transfer function estimated from the presented method is incorporated into an open-loop control optimization algorithm allowing for high-fidelity operations in quantum experiments.
description: 15 pages, 10 figures
Cycle-finite module categories
Creators: name: Malicki, Piotr
name: de la Peña, José A.
name: Skowroński, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We describe the structure of module categories of finite dimensional algebras over an algebraically closed field for which the cycles of nonzero nonisomorphisms between indecomposable finite dimensional modules are finite (do not belong to the infinite Jacobson radical of the module category). Moreover, geometric and homological properties of these module categories are exhibited.
Prediction Calibration for Generalized Few-shot Semantic Segmentation
Creators: name: Lu, Zhihe
name: He, Sen
name: Li, Da
name: Song, Yi-Zhe
name: Xiang, Tao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Generalized Few-shot Semantic Segmentation (GFSS) aims to segment each image pixel into either base classes with abundant training examples or novel classes with only a handful of (e.g., 1-5) training images per class. Compared to the widely studied Few-shot Semantic Segmentation FSS, which is limited to segmenting novel classes only, GFSS is much under-studied despite being more practical. Existing approach to GFSS is based on classifier parameter fusion whereby a newly trained novel class classifier and a pre-trained base class classifier are combined to form a new classifier. As the training data is dominated by base classes, this approach is inevitably biased towards the base classes. In this work, we propose a novel Prediction Calibration Network PCN to address this problem. Instead of fusing the classifier parameters, we fuse the scores produced separately by the base and novel classifiers. To ensure that the fused scores are not biased to either the base or novel classes, a new Transformer-based calibration module is introduced. It is known that the lower-level features are useful of detecting edge information in an input image than higher-level features. Thus, we build a cross-attention module that guides the classifier's final prediction using the fused multi-level features. However, transformers are computationally demanding. Crucially, to make the proposed cross-attention module training tractable at the pixel level, this module is designed based on feature-score cross-covariance and episodically trained to be generalizable at inference time. Extensive experiments on PASCAL-$5^{i}$ and COCO-$20^{i}$ show that our PCN outperforms the state-the-the-art alternatives by large margins.
description: Technical Report
Mimosa revoluta (Kunth) Benth
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa
Mimosa revoluta

description: 39. Mimosa revoluta (Kunth) Benth.
A widespread and common mid-elevation species in seasonally dry tropical forest of the Andean valleys of Bolivia and Peru.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 218, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
ALMA Observation of a $z\gtrsim10$ Galaxy Candidate Discovered with JWST
Creators: name: Yoon, Ilsang
name: Carilli, Christopher L.
name: Fujimoto, Seiji
name: Castellano, Marco
name: Merlin, Emiliano
name: Santini, Paola
name: Yun, Min S.
name: Murphy, Eric J.
name: Jung, Intae
name: Casey, Caitlin M.
name: Finkelstein, Steven L.
name: Papovich, Casey
name: Fontana, Adriano
name: Treu, Tommaso
name: Letai, Jonathan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the ALMA observation of a $z\gtrsim10$ galaxy candidate (GHZ1) discovered from the GLASS-JWST Early Release Science Program. Our ALMA program aims to detect the [OIII] emission line at the rest-frame 3393.0062 GHz ($88.36μ$m) and far-IR continuum emission with the spectral window setup seamlessly covering a 26.125 GHz frequency range ($10.10
description: Accepted to ApJ after revising the figures and the analysis
Territoriality and social discrimination in the house mouse (Mus musculus L.)
Creators: name: Hyslop, Colleen Frances
Publisher: name: University of Calgary
Year: 1978
Subjects: subject: QL 737 R638 H96 1978 Microfiche
subject: Mus musculus
subject: Mice - Behavior
subject: Territoriality (Zoology)

description: Bibliography: p. 70-81.
Laser-induced quantum pumping in graphene
Creators: name: San-Jose, Pablo
name: Prada, Elsa
name: Schomerus, Henning
name: Kohler, Sigmund
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate non-adiabatic electron pumping in graphene generated by laser irradiation with linear polarization parallel or perpendicular to the transport direction. Transport is dominated by the spatially asymmetric excitation of electrons from evanescent into propagating modes. For a laser with parallel polarization, the pumping response exhibits a subharmonic resonant enhancement which directly probes the Fermi energy; no such enhancement occurs for perpendicular polarization. The resonance mechanism relies on the chirality of charge carriers in graphene.
description: 3 pages, 3 figures
An Evaluation of the Techniques and Strategies for Recruiting African-Americans by 1862 Land-Grant Universities
Creators: name: Franklin, Rashawn P.
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Agricultural Education
subject: Educational Assessment, Evaluation, and Research
subject: Higher Education
subject: Race and Ethnicity

description: As post-secondary education becomes more important for the American citizen to generate wealth, universities are struggling to retain and graduate African-Americans, the third-most represented demographic in the country, especially at predominately white colleges and universities. The Colleges of Agriculture at these particular institutions are struggling to even get Black students to apply, let alone graduate. One of the major issues is the disconnect between the African-American community and the idea of post-secondary education in the agricultural field. One way that disconnect can be combatted is new techniques and strategies in recruiting African-Americans. This study identifies three themes based on interviews with recruiters from universities throughout the country, as to why universities are struggling to effectively recruit Black students into programs. The results indicate that there is a lack of resources present and offered in recruiting said student, a perceived misconception of African-American’s views of agriculture and a major disconnect with the African-American community and colleges of agriculture. In order to combat and ultimately fix this issues, these three themes must be addressed.
Distinguishing Causality Principles
Creators: name: Rédei, Miklós
name: Pedro, Iñaki San
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We distinguish two sub-types of each of the two causality principles formulated in connection with the Common Cause Principle in [Hen05] and raise and investigate the problem of logical relations among the resulting four causality principles. Based in part on the analysis of the status of these four principles in algebraic quantum field theory we will argue that the four causal principles are non-equivalent.
description: 15 pages, 2 figures
Techno-Economic Potential of Enhanced Coal Recovery through Middlings Liberation and Re-Processing
Creators: name: , Shivani
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Mining Engineering

description: The typical preparation plant producing coal for the utility market targets a relative separation density in the plant of around 1.60 whereas plants generating metallurgical coal use relative cut point density values approaching 1.50. In some cases, achieving the specified coal quality requires operating at lower cut point values, which results in a significant loss of valuable coal. In these situations, a middlings stream can be produced using a secondary separator or a three-product unit, which would allow crushing of the middlings for liberation purposes and re-introduction into the plant feed. In this manner, higher quality coal can be produced while maximizing plant yield.  A detailed laboratory analysis was conducted to study the liberation characteristics resulting from the crushing of middlings at different top sizes. The experimental data were later used as input for modeling and simulation of plant flowsheet in LIMN. Simulations were run for several regrinding cases. The results of the current study investigating the economic benefits of middlings liberation and re-treatment are presented and discussed in this thesis. Improvement up to 6% in plant yield with 16-21% reduction in ash and 14-18% sulfur reductions can be achieved by crushing the +1/2 inch middlings to a ½-inch top size.