cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Static and dynamical properties of elliptic quantum corrals
Creators: name: Nizama, M.
name: Hallberg, K.
name: Castro, J. d'Albuquerque e
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Due to their focalizing properties, elliptic quantum corrals present very interesting physical behaviors. In this work, we analyze static and dynamical properties of these systems. Results are presented for realistic values of the parameters, which might be useful for comparison with experiments. We study noninteracting corrals and their response to several kinds of external perturbations, observing that, for realistic values of the Fermi level, the dynamics involves only a few number of excited states, making the system quite robust with respect to possible sources of decoherence. We also study the system in the presence of two S=1/2 impurities located at its foci, which interact with the electrons of the ellipse via a superexchange interaction J. This system is diagonalized numerically and properties such as the spin gap and spin-spin static and dynamical correlations are studied. We find that, for small J, both spins are locked in a singlet or triplet state, for even or odd filling, respectively, and its spin dynamics consists mainly of a single peak above the spin gap. In this limit, we can define an effective Heisenberg Hamiltonian to describe the low-energy properties. For larger J, more states are involved and the localized spins decorrelate in a manner similar to the Ruderman-Kittel-Kasuya-Yosida-Kondo transition for the two-impurity problem.
description: 6 pages, 10 Encapsulated Postscript figures
Apply Artificial Neural Network to Solving Manpower Scheduling Problem
Creators: name: Liu, Tianyu
name: Zhang, Lingyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The manpower scheduling problem is a kind of critical combinational optimization problem. Researching solutions to scheduling problems can improve the efficiency of companies, hospitals, and other work units. This paper proposes a new model combined with deep learning to solve the multi-shift manpower scheduling problem based on the existing research. This model first solves the objective function's optimized value according to the current constraints to find the plan of employee arrangement initially. It will then use the scheduling table generation algorithm to obtain the scheduling result in a short time. Moreover, the most prominent feature we propose is that we will use the neural network training method based on the time series to solve long-term and long-period scheduling tasks and obtain manpower arrangement. The selection criteria of the neural network and the training process are also described in this paper. We demonstrate that our model can make a precise forecast based on the improvement of neural networks. This paper also discusses the challenges in the neural network training process and obtains enlightening results after getting the arrangement plan. Our research shows that neural networks and deep learning strategies have the potential to solve similar problems effectively.
description: none
Classical dynamics of a charged particle in a laser field beyond the dipole approximation
Creators: name: Jameson, Paul
name: Khvedelidze, Arsen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The classical dynamics of a charged particle traveling in a laser field modeled by an elliptically polarized monochromatic electromagnetic plane wave is discussed within the time reparametrization invariant form of the non-relativistic Hamilton-Jacobi theory. The exact parametric representation for a particle's orbit in an arbitrary plane wave background beyond the dipole approximation and including effect of the magnetic field is derived. For an elliptically polarized monochromatic plane wave the particle's trajectory, as an explicit function of the laboratory frame's time, is given in terms of the Jacobian elliptic functions, whose modulus is proportional to the laser's intensity and depends on the polarization of radiation. It is shown that the system exposes the ``intensity duality'', correspondence between the motion in the backgrounds with various intensities. In virtue of the modular properties of the Jacobian functions, by starting with the representative ``fundamental solution'' and applying a certain modular transformations one can obtain the particle's orbit in the monochromatic plane wave background with arbitrarily prescribed characteristics.
description: 37 pages, no figures
ผลการจัดการเรียนการสอนชีววิทยาโดยใช้แบบจำลองเป็นฐานที่มีต่อความสามารถในการโต้แย้งทางวิทยาศาสตร์ของนักเรียนมัธยมศึกษาตอนปลาย
Creators: name: ศักรินทร์ อะจิมา
Publisher: name: หน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ คณะวิทยาศาสตร์ มหาวิทยาลัยศรีนครินทรวิโรฒ
Year: 2564
Subjects: การจัดการเรียนการสอนโดยใช้แบบจำลองเป็นฐาน
การโต้แย้งทางวิทยาศาสตร์
การจัดการเรียนการสอนชีววิทยา

description: วารสารหน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ (JSTEL), 12, 2, 269-286
On Zhang's Semipositive Metrics
Creators: name: Gubler, Walter
name: Martin, Florent
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2019

description: Zhang introduced semipositive metrics on a line bundle of a proper variety.
 In this paper, we generalize such metrics for a line bundle $L$ of a paracompact strictly $K$-analytic space $X$ over any non-archimedean field $K$.
 We prove various properties in this setting such as density of piecewise $\Q$-linear metrics in the space of continuous metrics on $L$.
 If $X$ is proper scheme, then we show that algebraic, formal and piecewise linear metrics are the same.
 Our main result is that on a proper scheme $X$ over an arbitrary non-archimedean field $K$, the set of semipositive model metrics is
 closed with respect to pointwise convergence generalizing a result from Boucksom, Favre and Jonsson
 where $K$ was assumed to be discretely valued with residue characteristic $0$.
description: DOCUMENTA MATHEMATICA, Vol 24 (2019), p. 331-372
Outflows in the Radio-Intermediate Quasar III Zw 2: A Polarization Study with the EVLA & uGMRT
Creators: name: S., Silpa
name: Kharb, P.
name: Harrison, C. M.
name: Ho, L. C.
name: Jarvis, M. E.
name: Ishwara-Chandra, C. H.
name: Sebastian, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from a polarization study of the radio-intermediate quasar, III Zw 2, at a redshift of 0.089, with the upgraded Giant Metrewave Radio Telescope (uGMRT) at 685 MHz and the Karl G. Jansky Very Large Array (VLA) at 5 and 34 GHz. We detect a kpc-scale outflow, exhibiting transverse magnetic (B-) fields. The curved jet terminates in a bow-shock-like radio structure with inferred B-fields aligned with the lobe edges. We suggest that the radio outflow in III Zw 2 is a combination of a collimated jet along with a wind-like component. This "wind" component could be a magnetized accretion disk wind or the outer layers of a broadened jet or a combination of both. The current data cannot differentiate between these possibilities. We also detect kpc-scale lobe emission that is misaligned with the primary lobes in the uGMRT images. The spectral indices and the electron lifetimes in the misaligned lobe are similar to the primary lobe, suggesting that the misaligned lobe is not a relic. We propose that changing spectral states of the accretion disk, and the subsequent intermittent behaviour of the outflow, along with the close interplay between the jet and "wind" could explain the radio-intermediate nature of III Zw 2. Our study shows that radio-intermediate quasars are promising sources for understanding the role of jets and winds in galaxy evolution and demonstrates the power of radio polarization studies towards achieving this.
description: 12 pages, 6 figures; v2: matches published version
ผลของการพัฒนาวิชาชีพครูโดยใช้หลักวิธีการสอนสำหรับผู้ใหญ่ร่วมกับระบบการเรียนรู้จำเพาะบุคคล
Creators: name: ภาวัต ไชยพิเดช
Publisher: name: หน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ คณะวิทยาศาสตร์ มหาวิทยาลัยศรีนครินทรวิโรฒ
Year: 2564
Subjects: หลักวิธีการสอนสำหรับผู้ใหญ่
การพัฒนาวิชาชีพครู
ความรู้ในการสอนจำเพาะเนื้อหาโดยใช้เทคโนโลยี
การเรียนรู้จำเพาะบุคคล:การเรียนรู้แบบดิจิทัล

description: วารสารหน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ (JSTEL), 12, 2, 287-315
Exciton effects in optical absorption spectra of boron-nitride (BN) nanotubes
Creators: name: Harigaya, Kikuo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Exciton effects are studied in single-wall boron-nitride nanotubes. The Coulomb interaction dependence of the band gap, the optical gap, and the binding energy of excitons are discussed. The optical gap of the (5,0) nanotube is about 6eV at the onsite interaction U=2t with the hopping integral t=1.1eV. The binding energy of the exciton is 0.50eV for these parameters. This energy agrees well with that of other theoretical investigations. We find that the energy gap and the binding energy are almost independent of the geometries of nanotubes. This novel property is in contrast with that of the carbon nanotubes which show metallic and semiconducting properties depending on the chiralities.
description: 5 pages, 3 figures
Ein schwieriger Dialog. Polnisch-deutsch-österreichische Theaterkontakte nach 1945
Creators: name: Hein, Heidi
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 1 (2002)
Smooth Duals of Inner Forms of ${GL}_n$ and ${SL}_n$
Creators: name: Aubert, Anne-Marie
name: Baum, Paul
name: Plymen, Roger
name: Solleveld, Maarten
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2019

description: Let $F$ be a non-archimedean local field.
We prove that every Bernstein component in the smooth dual of each inner form of the general linear group $\rm{GL}_n(F)$
is canonically in bijection with the extended quotient for the action, given by Bernstein, of a finite group on a complex torus.
For inner forms of $\rm{SL}_n(F)$ we prove that each Bernstein component is canonically in bijection with the associated twisted extended quotient.
In both cases, the bijections satisfy naturality properties with respect to the tempered dual, parabolic induction, central character,
and the local Langlands correspondence.
description: DOCUMENTA MATHEMATICA, Vol 24 (2019), p. 373-420
Disappearance of Squeezed Back-to-Back Correlations - a new signal of hadron freeze-out from a supercooled Quark Gluon Plasma
Creators: name: Csorgo, T.
name: Padula, Sandra S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We briefly discuss four different possible types of transitions from quark to hadronic matter and their characteristic signatures in terms of correlations. We also highlight the effects arising from mass modification of hadrons in hot and dense hadronic matter, as well as their quantum statistical consequences: the appearance of squeezed quantum states and the associated experimental signatures, i.e., the back-to-back correlations of particle - anti-particle pairs. We briefly review the theoretical results of these squeezed quanta, generated by in-medium modified masses, starting from the first indication of the existence of surprising particle - anti-particle correlations, and ending by considering the effects of chiral dynamics on these correlation patterns. A prerequisite for such a signature is the experimental verification that these theoretically predicted back-to-back correlation of particle anti-particle pairs are, in fact, observable in high energy heavy ion reactions. Therefore, the experimental observation of back-to-back correlations in high energy heavy ion reactions would be a unique signature, proving the existence of in-medium mass modification of hadronic states. On the other hand, their disappearance at some threshold centrality or collision energy would indicate that the hadron formation mechanism would have qualitatively changed: asymptotic hadrons above such a threshold are not formed from medium modified hadrons anymore, but rather by new degrees of freedom characterizing the medium. Furthermore, the disappearance of the squeezed BBC could also serve as a signature of a sudden, non-equilibrium hadronization scenario from a supercooled quark-gluon plasma phase.
description: 12 pages, 3 figures. Presented at 2nd Workshop on Particle Correlation and Femtoscopy (WPCF 2006), Sao Paulo, Brazil, 9-11 Sep 2006. Brazilian Journal of Physics (2007) in press
การพัฒนาขีดความสามารถในการบริหารจัดการคุณภาพการศึกษาขององค์กรปกครองส่วนท้องถิ่น จังหวัดมหาสารคาม
Creators: name: สมเจตน์  ภูศรี
name: รังสรรค์  สิงหเลิศ
name: ชาตรี  ศิริสวัสดิ์
name: เสาวลักษณ์  โกศลกิตติอัมพร
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2008
Subjects: การพัฒนาศูนย์พัฒนาเด็กเล็ก, การบริหารจัดการคุณภาพการศึกษา, องค์กรปกครองส่วนท้องถิ่น

description: 1, 2, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Herzog Albrecht von Preußen und Livland (1534-1540). Regesten aus dem Herzoglichen Briefarchiv und den Ostpreußischen Folianten
Creators: name: Arnold, Udo
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 2 (2001)
The Effect of Geometry, Spin and Orbital Optimization in Achieving Accurate, Fully-Correlated Results for Iron-Sulfur Cubanes
Creators: name: Mejuto-Zaera, Carlos
name: Tzeli, Demeter
name: Williams-Young, David
name: Tubman, Norm M.
name: Matoušek, Mikuláš
name: Brabec, Jiri
name: Veis, Libor
name: Xantheas, Sotiris S.
name: de Jong, Wibe A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Iron-sulfur clusters comprise an important functional motif of the catalytic centers of biological systems, capable of enabling important chemical transformations at ambient conditions. This remarkable capability derives from a notoriously complex electronic structure that is characterized by a high density of states that is sensitive to geometric changes. The spectral sensitivity to subtle geometric changes has received little attention from fully-correlated calculations, owing partly to the exceptional computational complexity for treating these large and correlated systems accurately. To provide insight into this aspect, we report the first Complete Active Space Self Consistent Field (CASSCF) calculations for different geometries of cubane-based clusters using two complementary, fully-correlated solvers: spin-pure Adaptive Sampling Configuration Interaction (ASCI) and Density Matrix Renormalization Group (DMRG). We find that the previously established picture of a double-exchange driven magnetic structure, with minute energy gaps (< 1 mHa) between consecutive spin states, has a weak dependence on the underlying geometry. However, the spin gap between the lowest singlet and the highest spin states is strongly geometry dependent, changing by an order of magnitude upon slight deformations that are still within biologically relevant parameters. The CASSCF orbital optimization procedure, using active spaces as large as 86 electrons in 52 orbitals, was found to reduce this gap by a factor of two compared to typical mean-field orbital approaches. Our results clearly demonstrate the need for performing highly correlated calculations to unveil the challenging electronic structure of these complex catalytic centers.
description: 16 pages, 7 figures, 6 tables plus SI (12 pages, 3 figures, 9 tables)
Electrical networks on $n$-simplex fractals
Creators: name: Burioni, R.
name: Cassi, D.
name: Neri, F. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The decimation map $\mathcal{D}$ for a network of admittances on an $n$-simplex lattice fractal is studied. The asymptotic behaviour of $\mathcal{D}$ for large-size fractals is examined. It is found that in the vicinity of the isotropic point the eigenspaces of the linearized map are always three for $n \geq 4$; they are given a characterization in terms of graph theory. A new anisotropy exponent, related to the third eigenspace, is found, with a value crossing over from $\ln[(n+2)/3]/\ln 2$ to $\ln[(n+2)^3/n(n+1)^2]/\ln 2$.
description: 14 pages, 8 figures
An investigation of the effects of metaphor on seventh-grade students’ comprehension of expository text
Creators: name: Mercer, Kay Louise
Publisher: name: University of British Columbia
Year: 2010

description: This study investigated the effects of metaphor on children's comprehension of expository text. Forty-six seventh-grade students read either the metaphorical or the literal versions of two texts each containing eight targets, that is, metaphors or their equivalent literal phrases. One text, "Polar Bears," described a topic familiar to the students while the other, "Wombats," described an unfamiliar topic. After reading each text, students orally recalled as much information as possible, and then answered oral probe questions. Students who read the metaphoric versions of the texts also completed a written recognition-of-meaning test as an additional measure of metaphor comprehension. There was no difference between students' comprehension of the metaphoric texts and their comprehension of the literal texts. There was, however, a facilitative effect for metaphor on students' comprehension of target information when the topic of the text was unfamiliar. Students were able to recall the information conveyed by the metaphors and to recognize the correct interpretations of the metaphors better from the unfamiliar text than from the familiar metaphoric text. Students' ability to answer factual questions based on the metaphors, however, was no different from the familiar text than it was from the unfamiliar text. This finding was interpreted as demonstrating an effect of a kind, for topic significantly affected the other measures of probed recall in favour of the familiar topic. The different findings of the free recall and recognition of meaning measures, and the probe recall measures regarding target comprehension were likely due to the different task constraints of these sets of measures. It was noted that there is a need for further research on the relationship and nature of these widely-used measures of comprehension. It was concluded that although metaphors appear with some frequency in basal readers, metaphor is not a troublesome aspect of language which children need to be taught to analyze and to interpret. If children are experiencing difficulties comprehending texts containing metaphors, they will likely benefit from curriculum activities designed to develop their vocabulary, their experience with language and literature, and their knowledge of the world.
Andrzej Radzimiński, Biskupstwa państwa krzyżackiego w Prusach XII-XV wieku
Creators: name: Wünsch, Thomas
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 2 (2001)
Cyprian Wilanowski, Konspiracyjna działalność duchowieństwa katolickiego na Wileńszczyźnie w latach 1939-1944
Creators: name: Chiari, Bernhard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 1 (2002)
Im Banne des Gedächtnisses. Die Reise nach Polen in der deutschen literarischen Prosa 1960-1990
Creators: name: Fagot, Pascal
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 1 (2001)
Hanna Kozińska-Witt, Die Krakauer Jüdische Reformgemeinde 1864-1874
Creators: name: Röskau-Rydel, Isabel
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 4 (2001)
Hyperbolic Diffusion in Flux Reconstruction: Optimisation through Kernel Fusion within Tensor-Product Elements
Creators: name: Trojak, Will
name: Watson, Rob
name: Witherden, Freddie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Software (cs.MS)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Novel methods are presented in this initial study for the fusion of GPU kernels in the artificial compressibility method (ACM), using tensor product elements with constant Jacobians and flux reconstruction. This is made possible through the hyperbolisation of the diffusion terms, which eliminates the expensive algorithmic steps needed to form the viscous stresses. Two fusion approaches are presented, which offer differing levels of parallelism. This is found to be necessary for the change in workload as the order of accuracy of the elements is increased. Several further optimisations of these approaches are demonstrated, including a generation time memory manager which maximises resource usage. The fused kernels are able to achieve 3-4 times speedup, which compares favourably with a theoretical maximum speedup of 4. In three dimensional test cases, the generated fused kernels are found to reduce total runtime by ${\sim}25\%$, and, when compared to the standard ACM formulation, simulations demonstrate that a speedup of $2.3$ times can be achieved.
Reply to "Comment on `Self-organized Criticality and Absorbing States: Lessons from the Ising Model'"
Creators: name: Pruessner, Gunnar
name: Peters, Ole
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In [Braz. J. Phys. 30, 27 (2000)] Dickman et al. suggested that self-organized criticality can be produced by coupling the activity of an absorbing state model to a dissipation mechanism and adding an external drive. We analyzed the proposed mechanism in [Phys. Rev. E 73, 025106R (2006)] and found that if this mechanism is at work, the finite-size scaling found in self-organized criticality will depend on the details of the implementation of dissipation and driving. In the preceding comment [Phys. Rev. E XX, XXXX (2008)] Alava et al. show that one avalanche exponent in the AS approach becomes independent of dissipation and driving. In our reply we clarify their findings and put them in the context of the original article.
description: 4 pages, REVTeX (draft)
A Statistical Review of Light Curves and the Prevalence of Contact Binaries in the Kuiper Belt
Creators: name: Showalter, Mark R.
name: Benecchi, Susan D.
name: Buie, Marc W.
name: Grundy, William M.
name: Keane, James T.
name: Lisse, Carey M.
name: Olkin, Cathy B.
name: Porter, Simon B.
name: Robbins, Stuart J.
name: Singer, Kelsi N.
name: Verbiscer, Anne J.
name: Weaver, Harold A.
name: Zangari, Amanda M.
name: Hamilton, Douglas P.
name: Kaufmann, David E.
name: Lauer, Tod R.
name: Mehoke, D. S.
name: Mehoke, T. S.
name: Spencer, J. R.
name: Throop, H. B.
name: Parker, J. W.
name: Stern, S. Alan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate what can be learned about a population of distant KBOs by studying the statistical properties of their light curves. Whereas others have successfully inferred the properties of individual, highly variable KBOs, we show that the fraction of KBOs with low amplitudes also provides fundamental information about a population. Each light curve is primarily the result of two factors: shape and orientation. We consider contact binaries and ellipsoidal shapes, with and without flattening. After developing the mathematical framework, we apply it to the existing body of KBO light curve data. Principal conclusions are as follows. (1) When using absolute magnitude H as a proxy for size, it is more accurate to use the maximum of the light curve rather than the mean. (2) Previous investigators have noted that smaller KBOs have higher-amplitude light curves, and have interpreted this as evidence that they are systematically more irregular in shape than larger KBOs; we show that a population of flattened bodies with uniform proportions could also explain this result. (3) Our analysis indicates that prior assessments of the fraction of contact binaries in the Kuiper Belt may be artificially low. (4) The pole orientations of some KBOs can be inferred from observed changes in their light curves; however, these KBOs constitute a biased sample, whose pole orientations are not representative of the population overall. (5) Although surface topography, albedo patterns, limb darkening, and other surface properties can affect individual light curves, they do not have a strong influence on the statistics overall. (6) Photometry from the OSSOS survey is incompatible with previous results and its statistical properties defy easy interpretation. We also discuss the promise of this approach for the analysis of future, much larger data sets such as the one anticipated from the Rubin Observatory.
Uncertainty-Aware Learning for Improvements in Image Quality of the Canada-France-Hawaii Telescope
Creators: name: Gilda, Sankalp
name: Draper, Stark C.
name: Fabbro, Sebastien
name: Mahoney, William
name: Prunet, Simon
name: Withington, Kanoa
name: Wilson, Matthew
name: Ting, Yuan-Sen
name: Sheinis, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We leverage state-of-the-art machine learning methods and a decade's worth of archival data from CFHT to predict observatory image quality (IQ) from environmental conditions and observatory operating parameters. Specifically, we develop accurate and interpretable models of the complex dependence between data features and observed IQ for CFHT's wide-field camera, MegaCam. Our contributions are several-fold. First, we collect, collate and reprocess several disparate data sets gathered by CFHT scientists. Second, we predict probability distribution functions (PDFs) of IQ and achieve a mean absolute error of $\sim0.07''$ for the predicted medians. Third, we explore the data-driven actuation of the 12 dome "vents" installed in 2013-14 to accelerate the flushing of hot air from the dome. We leverage epistemic and aleatoric uncertainties in conjunction with probabilistic generative modeling to identify candidate vent adjustments that are in-distribution (ID); for the optimal configuration for each ID sample, we predict the reduction in required observing time to achieve a fixed SNR. On average, the reduction is $\sim12\%$. Finally, we rank input features by their Shapley values to identify the most predictive variables for each observation. Our long-term goal is to construct reliable and real-time models that can forecast optimal observatory operating parameters to optimize IQ. We can then feed such forecasts into scheduling protocols and predictive maintenance routines. We anticipate that such approaches will become standard in automating observatory operations and maintenance by the time CFHT's successor, the Maunakea Spectroscopic Explorer, is installed in the next decade.
description: 25 pages and 12 figures (main) + 7 pages and 8 figures (2 appendices). Accepted for publication in MNRAS
Writing «so raw and true»: Blogging in Chimamanda Ngozi Adichie’s Americanah
Creators: name: Guarracino, Serena
Publisher: name: Università degli Studi di Cagliari
Year: 2014

description: This essay aims at tracing the intersection between literary production and multimedia textuality in the case of postcolonial writing through an analysis of Chimamanda Ngozi Adichie’s recent novel Americanah (2013). Here the main character Ifemelu, after leaving her native Lagos to study in the US, becomes famous as a blogger on racial issues from the point of view of a non-American black. Starting from Sandra Ponzanesi’s The Postcolonial Cultural Industry, the analysis of the novel takes into account recent debates on the public role of postcolonial writers, as the blog reflects Adichie’s own role in contemporary media and situates the novel in the global landscape of Afropolitanism and its predicaments.  Blog entries inhabit the novel from its early pages, and blogging intersects fiction and contaminates it with social commentary. With its interweaving of creative writing and opinion making, novel and blog, Americanah comments on the public role of the writer and its viral exposure, offering a poignant example of the mutation of narrative forms in the information age. Questo contributo indaga l’intreccio tra produzione letteraria e testualità multimediali nella scrittura postcoloniale attraverso l’analisi del recente romanzo di Chimamanda Ngozi Adichie Americanah (2013). Qui la protagonista Ifemelu, trasferitasi da Lagos negli Stati Uniti, apre un blog che si occupa di questioni razziali dal punto di vista di una nera non statunitense. Partendo dalle argomentazioni proposte da Sandra Ponzanesi nel suo The Postcolonial Cultural Industry (2014), l’analisi del romanzo prende in considerazione il recente dibattito sul ruolo pubblico dello scrittore postcoloniale: il blog riflette il ruolo di Adichie nei media e situa il romanzo – non senza fratture – nel panorama globale dell’Afropolitanismo. I post del blog appaiono nel romanzo dall’inizio, e la sua scrittura interseca la fiction contaminandola con un ampio commento sociale. Con il suo intreccio di scrittura creativa e d’opinione, romanzo e blog, Americanah commenta sul ruolo pubblico dello scrittore e la sua presenza ‘virale’ nei media, offrendo un esempio pregnante sul cambiamento delle forme narrative nell’era dell’informazione.
description: Between, Vol 4, N° 8 (2014): Tecnologia, immaginazione e forme del narrare
Interest rates mapping
Creators: name: Kanevski, M.
name: Maignan, M.
name: Pozdnoukhov, A.
name: Timonin, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: The present study deals with the analysis and mapping of Swiss franc interest rates. Interest rates depend on time and maturity, defining term structure of the interest rate curves (IRC). In the present study IRC are considered in a two-dimensional feature space - time and maturity. Geostatistical models and machine learning algorithms (multilayer perceptron and Support Vector Machines) were applied to produce interest rate maps. IR maps can be used for the visualisation and patterns perception purposes, to develop and to explore economical hypotheses, to produce dynamic asses-liability simulations and for the financial risk assessments. The feasibility of an application of interest rates mapping approach for the IRC forecasting is considered as well.
description: 8 pages, 8 figures. Presented at Applications of Physics in Financial Analysis conference (APFA6), Lisbon, Portugal, 2006
Manifold curvature and Ehrenfest forces with a moving basis
Creators: name: Halliday, Jessica F. K.
name: Artacho, Emilio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Known force terms arising in the Ehrenfest dynamics of quantum electrons and classical nuclei, due to a moving basis set for the former, can be understood in terms of the curvature of the manifold hosting the quantum states of the electronic subsystem. Namely, the velocity-dependent terms appearing in the Ehrenfest forces on the nuclei acquire a geometrical meaning in terms of the intrinsic curvature of the manifold, while Pulay terms relate to its extrinsic curvature.
description: 4 pages, no figures, as accepted in SciPost Physics
Solitary structure formation and self-guiding of electromagnetic beam in highly degenerate electron plasma
Creators: name: Berezhiani, V. I.
name: Osmanov, Z. N.
name: Mahajan, S. M.
name: Mikeladze, S. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In the present paper we consider the nonlinear interaction of high frequency intense electromagnetic (EM) beam with degenerate electron plasmas. In a slowly varying envelop approximation the beam dynamics is described by the couple of nonlinear equations for the vector and scalar potentials. Numerical simulations demonstrate that for an arbitrary level of degeneracy the plasma supports existence of axially symmetric 2D solitons which are stable against small perturbations. The solitons exist if the power trapped in the structures, being the growing function of soliton amplitude, is above a certain critical value but below the value determining by electron cavitation. The robustness of obtained soliton solutions was verified by simulating the dynamics of initial Gaussian beams with parameters close to the solitonic ones. After few diffraction lengths the beam attains the profile close to the profile of the ground state soliton and propagates for a long distance without detectable distortion. The simulations have been performed for the input Gaussian beams with parameters far from ground state solutions. It is shown that the beam parameters are oscillating near the parameters of the ground soliton solution and thus the formation of oscillating waveguide structures takes place.
description: 6 pages, 8 figures
Maneuver Identification Challenge
Creators: name: Samuel, Kaira
name: Gadepally, Vijay
name: Jacobs, David
name: Jones, Michael
name: McAlpin, Kyle
name: Palko, Kyle
name: Paulk, Ben
name: Samsi, Sid
name: Siu, Ho Chit
name: Yee, Charles
name: Kepner, Jeremy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: AI algorithms that identify maneuvers from trajectory data could play an important role in improving flight safety and pilot training. AI challenges allow diverse teams to work together to solve hard problems and are an effective tool for developing AI solutions. AI challenges are also a key driver of AI computational requirements. The Maneuver Identification Challenge hosted at maneuver-id.mit.edu provides thousands of trajectories collected from pilots practicing in flight simulators, descriptions of maneuvers, and examples of these maneuvers performed by experienced pilots. Each trajectory consists of positions, velocities, and aircraft orientations normalized to a common coordinate system. Construction of the data set required significant data architecture to transform flight simulator logs into AI ready data, which included using a supercomputer for deduplication and data conditioning. There are three proposed challenges. The first challenge is separating physically plausible (good) trajectories from unfeasible (bad) trajectories. Human labeled good and bad trajectories are provided to aid in this task. Subsequent challenges are to label trajectories with their intended maneuvers and to assess the quality of those maneuvers.
description: 7 pages, 8 figures, 1 table, 33 references, accepted to IEEE HPEC 2021
Complements and signed digit representations: Analysis of a multi-exponentiation-algorithm of Wu, Lou, Lai and Chang
Creators: name: Heuberger, Clemens
name: Prodinger, Helmut
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 11A63 (Primary), 68W40 94A60 (Secondary)

description: Wu, Lou, Lai and Chang proposed a multi-exponentiation algorithm using binary complements and the non-adjacent form. The purpose of this paper is to show that neither the analysis of the algorithm given by its original proposers nor that by other authors are correct. In fact it turns out that the complement operation does not have significant influence on the performance of the algorithm and can therefore be omitted.
Der Schüleraustausch zwischen Polen und Deutschland in den 1930er Jahren. Polnischer Pfadfinderverband (ZHP) und Hitlerjugend
Creators: name: Gierlak, Maria
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 1 (2001)
Znaczenie bajkoterapii w okresie dzieciństwa w opiniach nauczycieli przedszkola
Creators: name: Matyjas, Bożena
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2021

description: Artykuł ma charakter teoretyczno-empiryczny. Poruszone zostało w nim zagadnienie znaczenia bajkoterapii w okresie dzieciństwa, konkretnie w odniesieniu do dzieci w wieku przedszkolnym. Badano opinie nauczycieli przedszkola dotyczące wykorzystania bajek terapeutycznych w ich codziennej pracy z dziećmi. Zdecydowana większość ankietowanych (90%) wyrażała pozytywną opinię o znaczeniu bajki terapeutycznej w procesie wychowania dziecka w przedszkolu, ponieważ jest ona pomocna w sytuacjach dla niego trudnych. Bajki terapeutyczne (psychoedukacyjne, psychoterapeutyczne, relaksacyjne) pozwalają rozwiązać wiele problemów emocjonalnych, lękowych czy napięciowych występujących u dzieci. Nauczyciele wskazywali internet/literaturę jako źródło poszerzania swojej wiedzy nt. bajek terapeutycznych. Wskazują na konieczność współpracy z rodzicami dzieci, aby bajka przyniosła pozytywne rezultaty.
Implementation of Programming Contents at the Early School Stage – Outline
Creators: name: Naruszewicz, Adam
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2021

description: This article is aimed mainly at students or novice teachers of early childhood education and is an introduction to the problem of developing programming skills among children at earlier school age. The text contains an overview of programming and coding issues and indicates examples of tools supporting the implementation of the core curriculum objective related to programming and coding in early childhood education.
The age grading and the Chen-Ruan cup product
Creators: name: Hepworth, Richard A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that the obstruction bundle used to define the cup-product in Chen-Ruan cohomology is determined by the so-called `age grading' or `degree-shifting numbers'. Indeed, the obstruction bundle can be directly computed using the age grading. We obtain a Kunneth Theorem for Chen-Ruan cohomology as a direct consequence of an elementary property of the age grading, and explain how several other results - including associativity of the cup-product - can be proved in a similar way.
description: 11 pages. Example added and minor errors corrected
The effects of text organization and headings on grade 5 through 10 students’ written recall of expository prose with emphasis on grades 5 and 6
Creators: name: Stables, Roderick Gwyn
Publisher: name: University of British Columbia
Year: 2010

description: This study investigated the effects of headings and text organization on grade 5 through 10 students' written recall of expository prose passages written in a classification/description mode. Emphasis was placed on the results from students in grades 5 and 6. This study was a component of a three part study. The other two parallel studies emphasized grades 7 and 8 (King, 1985) and 9 and 10 (Gibbs, 1985). Each subject read and recalled two passages: one written at his or her grade level and one written at a low readability level. Performance on the written recalls from passages with headings and without headings was examined on the basis of the number of superordinate and subordinate ideas recalled, the superordinate and subordinate organization, and the format. Developmental trends were investigated by including the data from the two parallel studies (Gibbs, 1985; King, 1985). There was some evidence that headings had a significant positive effect on the number of superordinate ideas recalled from a passage of low readability. Some significant differences indicated negative effects by headings. The majority of differences, however, were not significant. Developmental trends in grades 5 through 10 were noted in the number of ideas recalled on a low readability passage and the format used on the written recalls. Implications for instruction and suggestions for further research are discussed.
Das Bild des Nachkriegslagers in Lamsdorf im kollektiven Gedächtnis der Deutschen
Creators: name: Rexheuser, Rex
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2001

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 50 Nr. 1 (2001)
Działania podejmowane w ramach projektu Bardzo Młoda Kultura (BMK) w regionie świętokrzyskim i ich wpływ na wzrost kompetencji młodego pokolenia
Creators: name: Forma, Paulina
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2021

description: Strategicznym celem projektu Bardzo Młoda Kultura (BMK) jest wzmacnianie roli edukacji kulturowej w Polsce poprzez pobudzenie i wykorzystanie edukacyjnego potencjału kultury. Przyczynia się on w znaczący sposób do wzrostu kompetencji młodego pokolenia. Jak wskazują świętokrzyskie doniesienia, projekt przyczynił się do pobudzenia i efektywnego wykorzystania edukacyjnej roli kultury. Stworzono system opierający się na działaniach podejmowanych w sferze kultury. Te z kolei przyczyniły się wzrostu kompetencji młodego pokolenia, do kształtowania cenionych społecznie umiejętności i postaw: kreatywności, innowacyjnego działania, współpracy, zaufania, kompetencji medialnych i komunikacyjnych.
GKD: Semi-supervised Graph Knowledge Distillation for Graph-Independent Inference
Creators: name: Ghorbani, Mahsa
name: Bahrami, Mojtaba
name: Kazi, Anees
name: SoleymaniBaghshah, Mahdieh
name: Rabiee, Hamid R.
name: Navab, Nassir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The increased amount of multi-modal medical data has opened the opportunities to simultaneously process various modalities such as imaging and non-imaging data to gain a comprehensive insight into the disease prediction domain. Recent studies using Graph Convolutional Networks (GCNs) provide novel semi-supervised approaches for integrating heterogeneous modalities while investigating the patients' associations for disease prediction. However, when the meta-data used for graph construction is not available at inference time (e.g., coming from a distinct population), the conventional methods exhibit poor performance. To address this issue, we propose a novel semi-supervised approach named GKD based on knowledge distillation. We train a teacher component that employs the label-propagation algorithm besides a deep neural network to benefit from the graph and non-graph modalities only in the training phase. The teacher component embeds all the available information into the soft pseudo-labels. The soft pseudo-labels are then used to train a deep student network for disease prediction of unseen test data for which the graph modality is unavailable. We perform our experiments on two public datasets for diagnosing Autism spectrum disorder, and Alzheimer's disease, along with a thorough analysis on synthetic multi-modal datasets. According to these experiments, GKD outperforms the previous graph-based deep learning methods in terms of accuracy, AUC, and Macro F1.
Preparation of Socially Maladjusted Youth to Professional Independence in Youth Educational Centres
Creators: name: Kukla, Daniel
name: Mielczarek, Mirosław
Publisher: name: Wydawnictwo Uniwersytetu Jana Kochanowskiego w Kielcach
Year: 2021

description: The aim of the article is to analyse the preparation of minors staying in youth educational centres for professional independence. This issue was considered extremely important, especially in the aspect of the process of becoming independent, which is carried out by the institutions, to which each pupil is subject. The starting point for the chosen topic is the legal aspect of the juvenile and the organisational structure of youth educational centres. The main part of the text focuses on the idea of applying work in social rehabilitation with socially maladjusted individuals and their vocational training
Canonical Hamiltonians for waves in inhomogeneous media
Creators: name: Gershgorin, Boris
name: Lvov, Yuri V.
name: Nazarenko, Sergey
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We obtain a canonical form of a quadratic Hamiltonian for linear waves in a weakly inhomogeneous medium. This is achieved by using the WKB representation of wave packets. The canonical form of the Hamiltonian is obtained via the series of canonical Bogolyubov-type and near-identical transformations. Various examples of the application illustrating the main features of our approach are presented. The knowledge of the Hamiltonian structure for linear wave systems provides a basis for developing a theory of weakly nonlinear random waves in inhomogeneous media generalizing the theory of homogeneous wave turbulence.
description: minor edits
A GIT Construction of Degenerations of Hilbert Schemes of Points
Creators: name: Gulbrandsen, Martin G.
name: Halle, Lars H.
name: Hulek, Klaus
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2019

description: We present a Geometric Invariant Theory (GIT) construction which allows us to
construct good projective degenerations of Hilbert schemes of points for simple
degenerations. A comparison with the construction of Li and Wu shows that our
GIT stack and the stack they construct are isomorphic, as are the associated
coarse moduli schemes. Our construction is sufficiently explicit to obtain good
control over the geometry of the singular fibres. We illustrate this by giving a
concrete description of degenerations of degree $n$ Hilbert schemes of a simple
degeneration with two components.
description: DOCUMENTA MATHEMATICA, Vol 24 (2019), p. 421-472
Studying strangeness and baryon production in small systems through $Ξ-$hadron correlations using the ALICE detector
Creators: name: Adolfsson, Jonatan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: These proceedings summarise recent measurements of angular correlations between the $Ξ$ baryon and identified hadrons in pp collisions at $\sqrt{s}=13\,\mathrm{TeV}$ using the ALICE detector. The results are compared with both string-based (PYTHIA8 with extensions) and core-corona (EPOS-LHC) models, to improve our understanding of strangeness and baryon production in small systems. The results favour baryon production through string junctions over diquark breaking, but the PYTHIA models fail at describing the relatively wide $Ξ-$strangeness jet peak, indicating stronger diffusion of strange quarks in data. On the other hand, EPOS-LHC is missing local conservation of quantum numbers, making it difficult to draw any conclusion about the core-corona model.
description: 4 pages, 3 figures; conference proceedings of Strangeness in Quark Matter 2021, 17-22 May 2021; submitted to EPJ Web of Conference