cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Macrothricidae
Creators: name: Sinev, Artem Y.
name: Gu, Yangliang
name: Han, Bo-Ping
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Macrothricidae

description: Family Macrothricidae   Macrothrix spinosa King, 1853. One of the most common species in Hainan, encountered in all types of water bodies. For description, see Smirnov (1992) and Hollwedel et al. (2000), for description of the Indochina populations see Idris (1983). Species presumed to be pantropical (Smirnov 1992), common in the Oriental region. For list of records in China see Xiang et al. (2015).
 Macrothrix triserialis (Brady, 1896). Common species, encountered in all types of water bodies. For description see Smirnov (1992) and Dumont et al. (2002). Species presumed to be pantropical (Smirnov 1992), but identity of Neotropical and African populations with M. triserialis s. str., described from Sri Lanka, is doubted (Dumont et al. 2002). In East Asia species is penetrating North up to South Korea (Kotov et al. 2012). Morphology of studied specimens fully agrees with that of population from terra typica (see Dumont et al. 2002). For list of records in China see Xiang et al. (2015).
description: Published as part of Sinev, Artem Y., Gu, Yangliang & Han, Bo-Ping, 2015, Cladocera of Hainan Island, China, pp. 569-585 in Zootaxa 4006 (3) on pages 575-576, DOI: 10.11646/zootaxa.4006.3.9, http://zenodo.org/record/239040
"Thanks for helping me find my enthusiasm for physics!" The lasting impacts "research in schools" projects can have on students, teachers, and schools
Creators: name: Archer, Martin O.
name: DeWitt, Jennifer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Using 6 years of evaluation data we assess the medium- and long-term impacts upon a diverse range of students, teachers, and schools from participating in a programme of protracted university-mentored projects based in cutting-edge space science, astronomy, and particle physics research. After having completed their 6-month-long projects, the 14-18 year-old school students report having substantially increased in confidence relating to relevant scientific topics and methods as well as having developed numerous skills, outcomes which are corroborated by teachers. There is evidence that the projects helped increase students' aspirations towards physics, whereas science aspirations (generally high to begin with) were typically maintained or confirmed through their involvement. Longitudinal evaluation 3 years later has revealed that these projects have been lasting experiences for students which they have benefited and drawn upon in their subsequent university education. Data on students' destinations suggests that their involvement in research projects has made them more likely to undertake physics and STEM degrees than would otherwise be expected. Cases of co-created novel physics research resulting from PRiSE also has seemed to have a powerful effect, not only on the student co-authors but participating students from other schools also. Teachers have also been positively affected through participating, with the programme having influenced their own knowledge, skills, and pedagogy, as well as having advantageous effects felt across their wider schools. These impacts suggest that similar `research in schools' initiatives may have a role to play in aiding the increased uptake and diversity of physics and/or STEM in higher education as well as meaningfully enhancing the STEM environment within schools.
Spectra, eigenstates and transport properties of a $\mathcal{PT}$-symmetric ring
Creators: name: Ortega, Adrian
name: Benet, Luis
name: Larralde, Hernán
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study, analytically and numerically, a simple $\mathcal{PT}$-symmetric tight-binding ring with an onsite energy $a$ at the gain and loss sites. We show that if $a\neq 0$, the system generically exhibits an unbroken $\mathcal{PT}$-symmetric phase. We study the nature of the spectrum in terms of the singularities in the complex parameter space as well as the behavior of the eigenstates at large values of the gain and loss strength. We find that in addition to the usual exceptional points, there are "diabolical points", and inverse exceptional points at which complex eigenvalues reconvert into real eigenvalues. We also study the transport through the system. We calculate the total flux from the source to the drain, and how it splits along the branches of the ring. We find that while usually the density flows from the source to the drain, for certain eigenstates a stationary "backflow" of density from the drain to the source along one of the branches can occur. We also identify two types of singular eigenstates, i.e. states that do not depend on the strength of the gain and loss, and classify them in terms of their transport properties.
Ilyocryptidae
Creators: name: Sinev, Artem Y.
name: Gu, Yangliang
name: Han, Bo-Ping
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Ilyocryptidae

description: Family Ilyocryptidae   Ilyocryptus spinifer Herrick, 1882. Very common, in all types of waters. Benthic, associated with muddy or clay bottom. For detailed description see Kotov & Dumont (2000). Species is cosmopolitan since no evidence of noncosmopolitanism has been found (Kotov & Dumont 2000); common in the Oriental region including China. For list of records in China see Xiang et al. (2015).
 Ilyocryptus yooni Jeong, Kotov & Lee, 2012. Found in winter only in two ponds (loc. 15, 29) and in a single channel (loc. 16) with slow current. Benthic species, usually found in permanent lakes having broad, shallow water zones with well-developed littoral vegetation (Jeong et al., 2012). For detailed description see Jeong et al. (2012). The species is known from Far East of Russia, Japan, Korea; in China in Xingkai Hu, on border between Russia and China (Jeong et al. 2012), this suggest it can be expected everywhere in East China.
description: Published as part of Sinev, Artem Y., Gu, Yangliang & Han, Bo-Ping, 2015, Cladocera of Hainan Island, China, pp. 569-585 in Zootaxa 4006 (3) on page 576, DOI: 10.11646/zootaxa.4006.3.9, http://zenodo.org/record/239040
Modualtion [sic] of transcription by sequences contained in the 5’-flanking region of a Drosophila melanogaster tRNAVal4 gene
Creators: name: Sajjadi, Fereydoun G.
Publisher: name: University of British Columbia
Year: 2010

description: Transfer RNA genes require "positive" 5'-flanking sequences to direct efficient transcription. In order to delimit the modulatory sequences present in the 5'-flank of a Drosophila tRNA Val₄ gene, an extensive series of deletion mutants was constructed and end-points determined by dideoxy sequencing. The mutants were transcribed in vitro in a Drosophila Schneider II cell-free extract. Twenty nucleotides of the 5'-flank immediately adjacent to the mature tRNA coding sequence were required for transcription. Negative modulatory sequences were contained between positions -20 to -30 and -45 to -70 relative to the mature coding sequence. The -45 to -70 sequence shares homology with inhibitory sequences previously described in the 5'-flank of tRNA genes, except that this sequence was significantly larger in length. Sequences contained between positions -38 and -45 act as positive modulatory sequences which enhance the level of transcription. In addition, a Transcription Modulation Element (TME) was identified between nucleotides -33 and -38. The TME was also found in the 5'-flanking sequences of various other tRNA genes and preliminary data suggests that it enhances transcription efficiency through its position relative to the D and T control regions
SPIDER: A Balloon-borne Large-scale CMB Polarimeter
Creators: name: Crill, B. P.
name: Ade, P. A. R.
name: Battistelli, E. S.
name: Benton, S.
name: Bihary, R.
name: Bock, J. J.
name: Bond, J. R.
name: Brevik, J.
name: Bryan, S.
name: Contaldi, C. R.
name: Dore, O.
name: Farhang, M.
name: Fissel, L.
name: Golwala, S. R.
name: Halpern, M.
name: Hilton, G.
name: Holmes, W.
name: Hristov, V. V.
name: Irwin, K.
name: Jones, W. C.
name: Kuo, C. L.
name: Lange, A. E.
name: Lawrie, C.
name: MacTavish, C. J.
name: Martin, T. G.
name: Mason, P.
name: Montroy, T. E.
name: Netterfield, C. B.
name: Pascale, E.
name: Riley, D.
name: Ruhl, J. E.
name: Runyan, M. C.
name: Trangsrud, A.
name: Tucker, C.
name: Turner, A.
name: Viero, M.
name: Wiebe, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spider is a balloon-borne experiment that will measure the polarization of the Cosmic Microwave Background over a large fraction of a sky at 1 degree resolution. Six monochromatic refracting millimeter-wave telescopes with large arrays of antenna-coupled transition-edge superconducting bolometers will provide system sensitivities of 4.2 and 3.1 micro K_cmb rt s at 100 and 150 GHz, respectively. A rotating half-wave plate will modulate the polarization sensitivity of each telescope, controlling systematics. Bolometer arrays operating at 225 GHz and 275 GHz will allow removal of polarized galactic foregrounds. In a 2-6 day first flight from Alice Springs, Australia in 2010, Spider will map 50% of the sky to a depth necessary to improve our knowledge of the reionization optical depth by a large factor.
description: To appear in Proceedings of SPIE Volume 7010, Editors: Jacobus M. Oschmann, Jr.; Mattheus W. M. de Graauw; Howard A. MacEwen, "Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter"
Dark Matter Search Results from the PandaX-4T Commissioning Run
Creators: name: Meng, Yue
name: Wang, Zhou
name: Tao, Yi
name: Abdukerim, Abdusalam
name: Bo, Zihao
name: Chen, Wei
name: Chen, Xun
name: Chen, Yunhua
name: Cheng, Chen
name: Cheng, Yunshan
name: Cui, Xiangyi
name: Fan, Yingjie
name: Fang, Deqing
name: Fu, Changbo
name: Fu, Mengting
name: Geng, Lisheng
name: Giboni, Karl
name: Gu, Linhui
name: Guo, Xuyuan
name: Han, Ke
name: He, Changda
name: He, Jinrong
name: Huang, Di
name: Huang, Yanlin
name: Huang, Zhou
name: Hou, Ruquan
name: Ji, Xiangdong
name: Ju, Yonglin
name: Li, Chenxiang
name: Li, Mingchuan
name: Li, Shu
name: Li, Shuaijie
name: Lin, Qing
name: Liu, Jianglai
name: Lu, Xiaoying
name: Luo, Lingyin
name: Ma, Wenbo
name: Ma, Yugang
name: Mao, Yajun
name: Shaheed, Nasir
name: Ning, Xuyang
name: Qi, Ningchun
name: Qian, Zhicheng
name: Ren, Xiangxiang
name: Shang, Changsong
name: Shen, Guofang
name: Si, Lin
name: Sun, Wenliang
name: Tan, Andi
name: Wang, Anqing
name: Wang, Meng
name: Wang, Qiuhong
name: Wang, Shaobo
name: Wang, Siguang
name: Wang, Wei
name: Wang, Xiuli
name: Wu, Mengmeng
name: Wu, Weihao
name: Xia, Jingkai
name: Xiao, Mengjiao
name: Xiao, Xiang
name: Xie, Pengwei
name: Yan, Binbin
name: Yan, Xiyu
name: Yang, Jijun
name: Yang, Yong
name: Yu, Chunxu
name: Yuan, Jumin
name: Yuan, Ying
name: Zhang, Dan
name: Zhang, Minzhen
name: Zhang, Peng
name: Zhang, Tao
name: Zhao, Li
name: Zheng, Qibin
name: Zhou, Jifang
name: Zhou, Ning
name: Zhou, Xiaopeng
name: Zhou, Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7-tonne of liquid xenon target and an exposure of 0.63 tonne$\cdot$year, 1058 candidate events are identified within an approximate nuclear recoil energy window between 5 and 100 keV. No significant excess over background is observed. Our data set a stringent limit to the dark matter-nucleon spin-independent interactions, with a lowest excluded cross section (90% C.L.) of $3.8\times10^{-47} $cm$^2$ at a dark matter mass of 30 GeV/$c^2$.
description: proof draft as PRL
Foreground simulations for the LOFAR - Epoch of Reionization Experiment
Creators: name: Jelic, Vibor
name: Zaroubi, Saleem
name: Labropoulos, Panagiotis
name: Thomas, Rajat M.
name: Bernardi, Gianni
name: Brentjens, Michiel A.
name: de Bruyn, Ger
name: Ciardi, Benedetta
name: Harker, Geraint
name: Koopmans, Leon V. E.
name: Pandey, Vishambhar N.
name: Schaye, Joop
name: Yatawatta, Sarod
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Future high redshift 21-cm experiments will suffer from a high degree of contamination, due both to astrophysical foregrounds and to non-astrophysical and instrumental effects. In order to reliably extract the cosmological signal from the observed data, it is essential to understand very well all data components and their influence on the extracted signal. Here we present simulated astrophysical foregrounds datacubes and discuss their possible statistical effects on the data. The foreground maps are produced assuming 5 deg x 5 deg windows that match those expected to be observed by the LOFAR Epoch-of-Reionization (EoR) key science project. We show that with the expected LOFAR-EoR sky and receiver noise levels, which amount to ~52 mK at 150 MHz after 300 hours of total observing time, a simple polynomial fit allows a statistical reconstruction of the signal. We also show that the polynomial fitting will work for maps with realistic yet idealised instrument response, i.e., a response that includes only a uniform uv coverage as a function of frequency and ignores many other uncertainties. Polarized galactic synchrotron maps that include internal polarization and a number of Faraday screens along the line of sight are also simulated. The importance of these stems from the fact that the LOFAR instrument, in common with all current interferometric EoR experiments has an instrumentally polarized response.
description: 18 figures, 3 tables, accepted to be published in MNRAS
Bosminidae
Creators: name: Sinev, Artem Y.
name: Gu, Yangliang
name: Han, Bo-Ping
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Bosminidae

description: Family Bosminidae   Bosmina (Sinobosmina) fatalis Burckhardt, 1924. Found once in Muse Lake reservoir (loc. 12) in winter. Planktonic species. For description see Tanaka (2000), for description of male see Kotov et al. (2009). East Asian species distributed from Primorskii Area of Russia and Korea to Indonesia, Malaysia and Philippines. For list of records in China see Xiang et al. (2015).
 Bosmina (Bosmina) longirostris (O. F. Müller, 1776). Found once in a reservoir (loc. 1) in winter. Planktonic species. For description see Alonso (1996); for description of male see Kotov et al. (2009). Recorded worldwide, according to Chatterjee et al. (2013), who refer to unpublished genetical data of Taylor and Kotov, one of the few truly cosmopolitan cladocera. For list of records in China see Xiang et al. (2015).
 Bosminopsis deitersi (Richard, 1895). Found in reservoirs, ponds and rivers, more frequent in spring. Common planktonic species, presumed to be cosmopolitan, widely distributed in the Oriental region. For detailed description see Kotov (1997a, b). For list of records in China see Xiang et al. (2015).
description: Published as part of Sinev, Artem Y., Gu, Yangliang & Han, Bo-Ping, 2015, Cladocera of Hainan Island, China, pp. 569-585 in Zootaxa 4006 (3) on page 576, DOI: 10.11646/zootaxa.4006.3.9, http://zenodo.org/record/239040
Homological Epimorphisms of Differential Graded Algebras
Creators: name: Pauksztello, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16E45, 18E30

description: Let R and S be differential graded algebras. In this paper we give a characterisation of when a differential graded R-S-bimodule M induces a full embedding of derived categories M\otimes - :D(S)--> D(R). In particular, this characterisation generalises the theory of Geigle and Lenzing's homological epimorphisms of rings. Furthermore, there is an application of the main result to Dwyer and Greenlees's Morita theory.
description: 14 pages
Highly Variable $γ$-Ray Emission of CTD 135 and Implications for its Compact Symmetric Structure
Creators: name: Gan, Ying-Ying
name: Zhang, Hai-Ming
name: Zhang, Jin
name: Yang, Xing
name: Yi, Ting-Feng
name: Liang, Yun-Feng
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The $γ$-ray emission properties of CTD 135, a typical compact symmetric object (CSO), are investigated with $\sim$11-year Fermi/LAT observations. We show that it has bright and significantly variable GeV emission, with the $γ$-ray luminosity of $L_γ\sim10^{47}$ erg s$^{-1}$ and a variation index of TS$_{\rm var}=1002$. A quasi-periodic oscillation (QPO) with a periodicity of $\sim$460 days is detected in the global 95\% false-alarm level. These $γ$-ray emission features are similar to that of blazars. Its broadband spectral energy distribution (SED) can be attributed to the radiations of the relativistic electrons accelerated in the core region and the extended region. The SED modeling shows that the $γ$-rays are from the core region, which has a Doppler boosting factor of $δ\sim10.8$ and relativistically moves with a small viewing angle, being similar to blazar jets. On the base of the analysis results, we propose that the episodic activity of the central engine in CTD 135 results in a blazar-like jet and the bubble-like lobes as the Fermi bubbles in the Galaxy. The strong $γ$-ray emission with obvious variability is from the jet radiations and the symmetric radio structure is attributed to the bubbles. The jet radiation power and disk luminosity in units of Eddington luminosity of CTD 135 follow the same relation as other young radio galaxies, indicating that its jet radiation may be also driven by the Eddington ratio.
description: 14 pages, 7 figures, accepted for publication in RAA
An assessment of area licence configurations in the B.C. salmon fishery
Creators: name: Sakata, Tommy Taira
Publisher: name: University of British Columbia
Year: 2010

description: There has been much discussion of the merits and limitations of area licensing, i.e., a fishery management tool which restricts fishermen to certain geographic areas, in the British Columbia," Canada, salmon fishery. To date there has been little formal evaluation of the implications of this policy tool for salmon fishery management. In the reports by Pearse (1982), Sinclair (1978) and Fleet Rationalization Committee (1982) some insights on the subject are provided, but an evaluation in terms of specific criteria is lacking. This study evaluates five area licence configurations in the context of the B.C. salmon fishery. They are assessed based on evaluative criteria that cover the following subject areas: management operations; socio-economic effects; biological effectiveness; and economic efficiency. Each of these broad subjects are factored into specific elements, in which the emphasis is on the nature of the fishery and the resource. From the analysis it was found that the area licence configurations that factored the coast into two large harvest areas or the configuration that alienated small area(s) as test area(s) are most appropriate for the fishery. These configurations facilitated the attainment of management operations, socio-economic and biological goals, but not the economic efficiency goals. The other configurations, in particular those that factor the coast into a number of smaller harvest areas, result in exacerbating the problems with all criteria except economic efficiency and some biological factors. The appropriate area configurations for the B.C. salmon fishery would be the configurations that factors the coast into two large harvest areas; or the configuration where two or three small harvest areas are alienated from the existing harvest area. There are three fundamental reasons for this: (1) they are least disruptive (i.e., minimum impact on present harvest patterns, least politically sensitive, and minimum distributional effects); (2) they offer greatest flexibility to address political, economic, biological and social uncertainties; and (3) these area configurations provide the greatest ease of implementation and incremental adjustment of the status quo. Acceptance of these configurations will depend on the time horizon and the objectives of the decision makers.
The closed string tadpole in open string field theory
Creators: name: Ellwood, Ian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute a class of gauge invariant observables for marginal solutions and the tachyon vacuum. In each case we find that the observables are related in a simple way to the closed-string tadpole on a disk with appropriate boundary conditions. We give a sketch of an argument that this result should hold in general using the BRST invariance of the closed string two-point function. Finally, we discuss the analogous set of invariants in the Berkovits superstring field theory.
description: 32 pages, 9 figures
Support de cours "Les bibliothèques numériques patrimoniales"
Creators: name: Latour, Marie
Publisher: name: Zenodo
Year: 2019
Subjects: Manioc
Gallica
Europeana
BNM
bibliothèques numériques patrimoniales
Master
Doctorat
Pluridisciplinaire

description: Le support de cours présenté en pièce jointe est celui que j'utilise dans mon cours à l'Informatique scientifique et technique sur les bibliothèques numériques patrimoniales.

La séance de cours est intercalée de deux phases de jeux de 20 minutes environ réalisées à l'aide du logiciel Kahoot-it dont je mets les liens ici :

	Sur les bibliothèques numériques patrimoniales en général : https://create.kahoot.it/details/db3faae6-a787-478d-9176-3765687772c8
	Sur la bibliothèque numérique Manioc "Caraïbes, Amazonie, Plateau des trois Guyanes" spécifiquement : https://create.kahoot.it/details/729650c3-5c65-478e-8a27-eb5637a71de8
The snapshot distance method: estimating the distance to a Type Ia supernova from minimal observations
Creators: name: Stahl, Benjamin E.
name: de Jaeger, Thomas
name: Zheng, WeiKang
name: Filippenko, Alexei V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the snapshot distance method (SDM), a modern incarnation of a proposed technique for estimating the distance to a Type Ia supernova (SN Ia) from minimal observations. Our method, which has become possible owing to recent work in the application of deep learning to SN Ia spectra (we use the deepSIP package), allows us to estimate the distance to an SN Ia from a single optical spectrum and epoch of $2+$ passband photometry -- one night's worth of observations (though contemporaneity is not a requirement). Using a compilation of well-observed SNe Ia, we generate snapshot distances across a wide range of spectral and photometric phases, light-curve shapes, photometric passband combinations, and spectrum signal-to-noise ratios. By comparing these estimates to the corresponding distances derived from fitting all available photometry for each object, we demonstrate that our method is robust to the relative temporal sampling of the provided spectroscopic and photometric information, and to a broad range of light-curve shapes that lie within the domain of standard width-luminosity relations. Indeed, the median residual (and asymmetric scatter) between SDM distances derived from two-passband photometry and conventional light-curve-derived distances that utilise all available photometry is $0.013_{-0.143}^{+0.154}$ mag. Moreover, we find that the time of maximum brightness and light-curve shape (both of which are spectroscopically derived in our method) are only minimally responsible for the observed scatter. In a companion paper, we apply the SDM to a large number of sparsely observed SNe Ia as part of a cosmological study.
description: 9 pages, 5 figures, accepted for publication in MNRAS
Effective inverse spectral problem for rational Lax matrices and applications
Creators: name: Bertola, Marco
name: Gekhtman, Mikael
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We reconstruct a rational Lax matrix of size R+1 from its spectral curve (the desingularization of the characteristic polynomial) and some additional data. Using a twisted Cauchy--like kernel (a bi-differential of bi-weight (1-nu,nu)) we provide a residue-formula for the entries of the Lax matrix in terms of bases of dual differentials of weights nu and 1-nu respectively. All objects are described in the most explicit terms using Theta functions. Via a sequence of ``elementary twists'', we construct sequences of Lax matrices sharing the same spectral curve and polar structure and related by conjugations by rational matrices. Particular choices of elementary twists lead to construction of sequences of Lax matrices related to finite--band recurrence relations (i.e. difference operators) sharing the same shape. Recurrences of this kind are satisfied by several types of orthogonal and biorthogonal polynomials. The relevance of formulae obtained to the study of the large degree asymptotics for these polynomials is indicated.
description: 33 pages. Version 2 with added references suggested by the referee
Les versions en prose du Purgatoire de Saint Patrice en ancien français. Édition critique, introduction et notes publiées par Martina di Febo, Paris, Champion, 2013
Creators: name: Barillari, Sonia Maura
Publisher: name: Università degli Studi di Milano
Year: 2014

description: Carte romanze, Vol 2, No 2 (2014)
Sequential cavity method for computing free energy and surface pressure
Creators: name: Gamarnik, David
name: Katz, Dmitriy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60C05, 05A16, 82B20

description: We propose a new method for the problems of computing free energy and surface pressure for various statistical mechanics models on a lattice $\Z^d$. Our method is based on representing the free energy and surface pressure in terms of certain marginal probabilities in a suitably modified sublattice of $\Z^d$. Then recent deterministic algorithms for computing marginal probabilities are used to obtain numerical estimates of the quantities of interest. The method works under the assumption of Strong Spatial Mixing (SSP), which is a form of a correlation decay. We illustrate our method for the hard-core and monomer-dimer models, and improve several earlier estimates. For example we show that the exponent of the monomer-dimer coverings of $\Z^3$ belongs to the interval $[0.78595,0.78599]$, improving best previously known estimate of (approximately) $[0.7850,0.7862]$ obtained in \cite{FriedlandPeled},\cite{FriedlandKropLundowMarkstrom}. Moreover, we show that given a target additive error $ε>0$, the computational effort of our method for these two models is $(1/ε)^{O(1)}$ \emph{both} for free energy and surface pressure. In contrast, prior methods, such as transfer matrix method, require $\exp\big((1/ε)^{O(1)}\big)$ computation effort.
description: 33 pages, 4 figures
El cuento de Cerciapelleto.  Apuntes sobre la primera traducción castellana del «Decamerón»
Creators: name: Hernán-Gómez Prieto, Beatriz
Publisher: name: Università degli Studi di Milano
Year: 2014
Subjects: Decameron; primera traducción española; first spanish translation; primer cuento; first novella; crítica textual; textual criticism; análisis literario; literary analysis

description: El ensayo analiza el primer cuento del Decamerón en su traducción española del siglo XV, fijando el texto de forma provisional y tratando de describir el modus operandi del traductor. Para establecer un texto viable se usan el único manuscrito conservado, el escurialense J-II-21, y el impreso toledano de 1524, derivado de la editio princeps de Sevilla 1496, que se remontan a un mismo arquetipo. Se comparan las variantes de los dos testimonios con la edición de la obra de Boccaccio, teniendo en cuenta especialmente el ms. parisino, el cual, con otros códices, representa una “forma” anterior a la definitiva, y que fue la que tuvo el éxito más inmediato, traduciéndose también al francés y al catalán. En el análisis literario se propone un esquema de diez tipos de intervenciones, voluntarias e involuntarias, del anónimo castellano y cuatro conclusiones de orden general.

The essay analizes the first tale of the Decameron in its spanish translation from the XV century, fixing the text in a temporary way and trying to describe the translators’ modus operandi. In order to establish a viable text the only conserved manuscript is used, the escurialense J-II-21, and the impreso toledano from 1524, derived from the editio princeps of Sevilla in 1496, which all date back to the same archetype. The variants of the two texts are compared to the edition of Boccaccio’s work, taking into account especially the Paris manuscript, which, together with other codices, represents a “form” previous to the definitive one, and was the one with the most immediate success, being translated in French and Catalan as well. In the literary analysis a scheme of ten types of interventions by the anonymous Castilian author, voluntary and involuntary, is proposed, and four general conclusions.
description: Carte romanze, Vol 2, No 2 (2014)
La production éditoriale de Benoît Rigaud et son catalogue chevaleresque
Creators: name: Montorsi, Francesco
Publisher: name: Università degli Studi di Milano
Year: 2014
Subjects: roman de chevalerie; chivalric romance; Renaissance; Benoît Rigaud; histoire de l’édition; editorial production; vieux romans; nouveaux romans

description: La présente contribution se propose d’enquêter sur l’imprimeur-libraire Benoît Rigaud à la fois par le biais d’une étude de sa production globale et par une analyse portant sur ses impressions chevaleresques. Benoît Rigaud est l’un des éditeurs les plus prolifiques du XVIe siècle français, avec une activité qui s’étend sur plus que 40 ans et avec 1500 impressions environ. Entre 1572 et 1597, Rigaud publie de nombreux romans de chevalerie, à la fois médiévaux et renaissants, et devient l’un des imprimeurs les plus influents du marché chevaleresque de la fin du siècle. Après un préambule sur la réception des romans de chevalerie au XVIe siècle, la vaste production de Rigaud fait l’objet d’une analyse quantitative, avant que ne soit analysée la production des récits de chevalerie. Les données récoltées permettent de tirer des conclusions sur la dynamique éditoriale du genre chevaleresque ainsi que sur sa réception dans la seconde moitié du XVIe siècle.

This research seeks to shed light on the publisher Benoît Rigaud both through a study of his global production and an analysis of his chivalry printed books. Benoît Rigaud is one of the most productive publishers of 16th century France, with an activity covering more than 40 years, years during which he printed around 1500 books. Moreover, between 1572 and 1597, Rigaud printed many chivalry romances, both medieval and modern texts, so that he became one of the main publishers of chivalry literature of that period. In this research, after some short remarks upon the reception of chivalry romances in 16th century, the large production of Rigaud is subject to a quantitative analysis. Then, his production of chivalry romances is studied more in detail. The collected data lead us to draw conclusions on the dynamic of the chivalry genre as well as on his reception in the second half of the 16th century.
description: Carte romanze, Vol 2, No 2 (2014)
Schools of all backgrounds can do physics research: On the accessibility and equity of the PRiSE approach to independent research projects
Creators: name: Archer, Martin O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Societal biases are a major issue in school students' access to and interaction with science. Schools engagement programmes in science from universities, like independent research projects, which could try and tackle these problems are, however, often inequitable. We evaluate these concerns applied to one such programme, `Physics Research in School Environments' (PRiSE), which features projects in space science, astronomy, and particle physics. Comparing the schools involved with PRiSE to those of other similar schemes and UK national statistics, we find that PRiSE has engaged a much more diverse set of schools with significantly more disadvantaged groups than is typical. While drop-off occurs within the protracted programme, we find no evidence of systematic biases present. The majority of schools that complete projects return for multiple years of the programme, with this repeated buy-in from schools again being unpatterned by typical societal inequalities. Therefore, schools' ability to succeed at independent research projects appears independent of background within the PRiSE framework. Qualitative feedback from teachers show that the diversity and equity of the programme, which they attribute to the level of support offered through PRiSE's framework, is valued and they have highlighted further ways of making the projects potentially even more accessible. Researcher-involvement, uncommon in many other programmes, along with teacher engagement and communication are found to be key elements to success in independent research projects overall.
Scaffolding Simulations with Deep Learning for High-dimensional Deconvolution
Creators: name: Andreassen, Anders
name: Komiske, Patrick T.
name: Metodiev, Eric M.
name: Nachman, Benjamin
name: Suresh, Adi
name: Thaler, Jesse
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: A common setting for scientific inference is the ability to sample from a high-fidelity forward model (simulation) without having an explicit probability density of the data. We propose a simulation-based maximum likelihood deconvolution approach in this setting called OmniFold. Deep learning enables this approach to be naturally unbinned and (variable-, and) high-dimensional. In contrast to model parameter estimation, the goal of deconvolution is to remove detector distortions in order to enable a variety of down-stream inference tasks. Our approach is the deep learning generalization of the common Richardson-Lucy approach that is also called Iterative Bayesian Unfolding in particle physics. We show how OmniFold can not only remove detector distortions, but it can also account for noise processes and acceptance effects.
description: 6 pages, 1 figure, 1 table
Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at $\sqrt{s} = $ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data sample corresponds to an integrated luminosity of 138 fb$^{-1}$ of proton-proton collisions at $\sqrt{s} =$ 13 TeV collected by the CMS experiment at the LHC. Five dimension-six operators modifying the electroweak interactions of the top quark are considered. Novel machine-learning techniques are used to enhance the sensitivity to effects arising from these operators. Distributions used for the signal extraction are parameterized in terms of Wilson coefficients describing the interaction strengths of the operators. All five Wilson coefficients are simultaneously fit to data and 95% confidence level intervals are computed. All results are consistent with the SM expectations.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-21-001 (CMS Public Pages)
High-pressure synthesis of boron-rich chalcogenides B12S and B12Se
Creators: name: Cherednichenko, Kirill A.
name: Mukhanov, Vladimir A.
name: Kalinko, Aleksandr
name: Solozhenko, Vladimir L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two boron-rich chalcogenides B12S and B12Se isostructural to α-rhombohedral boron were synthesized by chemical reaction of the elements at high-pressure - high-temperature conditions. The crystal structures and stoichiometries of both compounds were confirmed by Rietveld refinement and elemental analysis. The experimental Raman spectra of B12S and B12Se were investigated for the first time. All observed Raman bands have been attributed to the theoretically calculated phonon modes, and the mode assignment has been performed.
An analysis of morphological variation within and between stream populations of Gasterosteus aculeatus Linnaeus
Creators: name: Shaw, Kate
Publisher: name: University of British Columbia
Year: 2010

description: Two small streams on Vancouver Island, British Columbia, were examined for patterns of morphological variation in Gasterosteus aculeatus. A progressive analysis beginning with Principle Components Analysis, followed by Nested and Partially Nested Multiple Analysis of Variance and then Duncan's Multiple Range Test was used for pattern determination. This new technique allows the researcher to sequentially isolate the pattern of variation at different levels of generality from species to individual organisms. The pattern of variation for G. aculeatus in Bonsall Creek and Nunns Creek can be summarized as follows: The largest amount of variation accounted for by the analysis is interpreted as individual variation. Populations also account for a large amount of variation and show consistent, fully nested patterns of variation at each of the analysed geographic and microgeographic levels. These populations are probably genealogical units. The so-called "leiurus" and "trachurus" forms on the Pacific coast of North America do not appear to be evolutionary entities, but to be historical artifacts that are best viewed as labels for the extremes of a continuum of variation. In areas where distinct populations meet, different clines are documented in the two stream systems. In Nunns Creek there is a smooth cline between populations, whereas in Bonsall Creek there is a step cline.
Repulsive dynamics of strongly attractive one-dimensional quantum gases
Creators: name: Łebek, Maciej
name: Syrwid, Andrzej
name: Grochowski, Piotr T.
name: Rzążewski, Kazimierz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We analyze the dynamics of one-dimensional quantum gases with strongly attractive contact interactions. We specify a class of initial states for which attractive forces effectively act as strongly repulsive ones during the time evolution. Our findings extend the theoretical results on the super-Tonks-Girardeau gas to a highly nonequilibrium dynamics. The novel mechanism is illustrated on the prototypical problem of the domain stability in a two-component Fermi gas. We also discuss nonlocal interactions and analyze universality of the presented results. Moreover, we use our conclusions to argue for the existence of metastable quantum droplets in the regime of strongly attractive contact and attractive dipolar interactions.
description: 6 pages + 6 pages SM
Probing modified gravitational-wave propagation through tidal measurements of binary neutron star mergers
Creators: name: Jiang, Nan
name: Yagi, Kent
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational-wave sources can serve as standard sirens to probe cosmology by measuring their luminosity distance and redshift. Such standard sirens are also useful to probe theories beyond general relativity with a modified gravitational-wave propagation. Many of previous studies on the latter assume multi-messenger observations so that the luminosity distance can be measured with gravitational waves while the redshift is obtained by identifying sources' host galaxies from electromagnetic counterparts. Given that gravitational-wave events of binary neutron star coalescences with associated electromagnetic counterpart detections are expected to be rather rare, it is important to examine the possibility of using standard sirens with gravitational-wave observations alone to probe gravity. In this paper, we achieve this by extracting the redshift from the tidal measurement of binary neutron stars that was originally proposed within the context of gravitational-wave cosmology (another approach is to correlate "dark sirens" with galaxy catalogs that we do not consider here). We consider not only observations with ground-based detectors (e.g. Einstein Telescope) but also multi-band observations between ground-based and space-based (e.g. DECIGO) interferometers. We find that such multi-band observations with the tidal information can constrain a parametric non-Einsteinian deviation in the luminosity distance (due to the modified friction in the gravitational wave evolution) more stringently than the case with electromagnetic counterparts by a factor of a few. We also map the above-projected constraints on the parametric deviation to those on specific theories and phenomenological models beyond general relativity to put the former into context.
description: 14 pages, 12 figures
Fe XVII $2p$-$3s$ line ratio diagnostic of shock formation radius in O stars
Creators: name: Grell, Gabriel J.
name: Leutenegger, Maurice A.
name: Shah, Chintan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The $2p$-$3s$ lines of Fe XVII in the X-ray spectrum of the O-type star $ζ$ Puppis exhibit an anomalous (3G + M2)/(3F) line ratio of $\sim$1.4, in comparison with $\sim$2.4 for almost all other collisionally excited astrophysical spectra. Based on the work of Mauche et al. (2001), we conjectured that the strong UV field of $ζ$ Puppis produces the observed ratio by depopulation of metastable $3s$ excited states, and that the ratio can potentially be used as an independent diagnostic of plasma formation radius. We used the Flexible Atomic Code (FAC) collisional-radiative model to model the effect of UV photoexcitation from O stars on the Fe XVII lines. We compared our model calculations to archival spectra of coronal and hot stars from the Chandra HETGS and XMM-Newton RGS to benchmark our calculations for various electron densities and UV field intensities. Our calculations show that UV photoexcitation does not produce a sufficiently large dynamic range in the 3F/(3F + 3G + M2) fraction to explain the difference in the observed ratio between coronal stars and $ζ$ Pup. Thus, this effect likely cannot explain the observed line ratio of $ζ$ Pup, and its origin is still unexplained.
description: 21 pages, 13 figures
Adversarial Attack for Uncertainty Estimation: Identifying Critical Regions in Neural Networks
Creators: name: Alarab, Ismail
name: Prakoonwit, Simant
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose a novel method to capture data points near decision boundary in neural network that are often referred to a specific type of uncertainty. In our approach, we sought to perform uncertainty estimation based on the idea of adversarial attack method. In this paper, uncertainty estimates are derived from the input perturbations, unlike previous studies that provide perturbations on the model's parameters as in Bayesian approach. We are able to produce uncertainty with couple of perturbations on the inputs. Interestingly, we apply the proposed method to datasets derived from blockchain. We compare the performance of model uncertainty with the most recent uncertainty methods. We show that the proposed method has revealed a significant outperformance over other methods and provided less risk to capture model uncertainty in machine learning.
description: 15 pages, 6 figures, Neural Process Lett (2021)
Who Gets What, According to Whom? An Analysis of Fairness Perceptions in Service Allocation
Creators: name: Hannan, Jacqueline
name: Chen, Huei-Yen Winnie
name: Joseph, Kenneth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Algorithmic fairness research has traditionally been linked to the disciplines of philosophy, ethics, and economics, where notions of fairness are prescriptive and seek objectivity. Increasingly, however, scholars are turning to the study of what different people perceive to be fair, and how these perceptions can or should help to shape the design of machine learning, particularly in the policy realm. The present work experimentally explores five novel research questions at the intersection of the "Who," "What," and "How" of fairness perceptions. Specifically, we present the results of a multi-factor conjoint analysis study that quantifies the effects of the specific context in which a question is asked, the framing of the given question, and who is answering it. Our results broadly suggest that the "Who" and "What," at least, matter in ways that are 1) not easily explained by any one theoretical perspective, 2) have critical implications for how perceptions of fairness should be measured and/or integrated into algorithmic decision-making systems.
description: Accepted at AIES'21
title: Finite element of rotating wheelset and its natural frequencies determination
Creators: name: Ahmedov, O.
name: Mirsaidov, M.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2021

description: This article is devoted to solving urgent problems related to the development of a mathematical model and methods for assessing the dynamic characteristics of railway wheelsets. In the simulation, railroad wheelsets are considered as a one-dimensional deformable body based on the Bernoulli-Euler theory with two rigid disks. The cross-section of the shaft is assumed flat and perpendicular to the centerline during vibration. Disks are modeled as a rigid body characterized by mass and moment of inertia. The centrifugal and gyroscopic effects and the damping properties of the material are taken into account. With these factors, the problem under consideration is reduced to a higher order of a homogeneous system of differential equations, which is then solved using the Altair Hyperworks and Matlab software. The dynamic characteristics of railway wheelsets are investigated depending on the angular speed of the wheel (without taking into account the contact between the wheelset and the rail), with and without damping. At that, a number of new mechanical effects were established.