cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A translation of L. Euler's "On the rectilinear motion of three bodies mutually attracting each other"
Creators: name: Bistafa, Sylvio R
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: This is an annotated translation from Latin of E327 'De motu rectilineo trium corporum se mutuo attrahentium'. In this publication, Euler considers three bodies lying on a straight line, which are attracted to each other by central forces inversely proportional to the square of their separation distance (inverse-square law). Although not explicitly mentioned by Euler, this is an exact solution of three bodies that move around the common center of mass and always line up. The solution given by Euler could represent a hypothetical situation of Sun, Earth and Moon in perpetual alignment in syzygy, for which the parameter that controls the distances among the planets was found to be given by a quintic function.
description: 8 pages, 1 figure
Universality of the limit shape of convex lattice polygonal lines
Creators: name: Bogachev, Leonid V.
name: Zarbaliev, Sakhavat M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let ${\varPi}_n$ be the set of convex polygonal lines $\varGamma$ with vertices on $\mathbb {Z}_+^2$ and fixed endpoints $0=(0,0)$ and $n=(n_1,n_2)$. We are concerned with the limit shape, as $n\to\infty$, of "typical" $\varGamma\in {\varPi}_n$ with respect to a parametric family of probability measures $\{P_n^r,0
description: Published in at http://dx.doi.org/10.1214/10-AOP607 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Improved Limits on the Lepton-Flavor Violating Decays tau- --> l-l+l-
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the neutrinoless, lepton-flavor violating decay of the tau lepton into three charged leptons has been performed using 376 fb^{-1} of data collected at an e^+e^- center-of-mass energy around 10.58 GeV with the BaBar detector at the PEP-II storage rings. In all six decay modes considered, the numbers of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (4-8) x 10^{-8} at 90% confidence level.
description: 7 pages, 1 postscript figure, submitted to Phys. Rev. Lett
Trivalent metal complexes of 3-hydroxy-4-pyrone and 2-acyl-3-hydroxyfurans
Creators: name: Lutz, Tammy
Publisher: name: University of British Columbia
Year: 2010

description: Group 13(IIIA) metal complexes (ML₃) of 1 -(3-hydroxy-2-furanyl)ethanone (Hima), 3-hydroxy-4H-pyran-4-one (Hpa), and a newly synthesized ligand 2-(N-methylamido)-3-hydroxy-5-methylfuran (Hahm) have been prepared, as well as the Gd complex of Hima. They have been characterized by IR, NMR, and UV spectroscopies, as well as mass spectrometry, and elemental analyses. All were consistent with the proposed tris(ligand)metal(lll) structure. The Al and Ga complexes of isomaltol have been studied by single crystal X-ray diffraction showing two out of the three ligands to be disordered. Solution equilibrium studies (0.15 M NaCl, 25°C) showed that Hpa is a better binder for the Group 13 metal ions than either Hima or Hahm.
title: Организационные и процессуальные особенности наложения ареста на имущество в уголовном судопроизводстве
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2025

description: Учебное пособие посвящено организационным и процессуальным особенностям наложения ареста на имущество в уголовном судопроизводстве. В издании рассматриваются основания наложения ареста на имущество, а также порядок и сроки применения указанной меры. Особое внимание уделено проблемам наложения ареста на ценные бумаги, криптовалюту и другие виртуальные активы. Разработаны предложения по совершенствованию уголовно-процессуального закона и практики его применения в рассматриваемой области. Учебное пособие подготовлено с учетом требований Федерального государственного образовательного стандарта среднего профессионального образования. Предназначено для студентов укрупненной группы специальностей «Юриспруденция», изучающих дисциплины «Уголовный процесс» и «Уголовное право».
A spontán  beszéd  és  a  felolvasás  temporális  jellemzői  kisiskolás korban
Creators: name: Bóna, Judit
Publisher: name: Beszédkutatás
Year: 2019

description: Temporal characteristics of spontaneous speech and reading in primary and middle school age


The aim of this study is to examine the temporal differences between spontaneous speech and reading of schoolchildren of different ages. Third, fifth and seventh-grade children participated in the study. The results show that speech tempo does not change linearly with the increase of age. In the comparison of the age groups, the difference between speech production processes (planning of spontaneous speech and becoming practiced in reading) has been observed. On the other hand, the comparison of the temporal characteristics of the two speech tasks showed how the two types of speech planning processes are related in naive readers and in experienced readers.
description: Beszédkutatás, Évf. 27 szám 1 (2019): Beszédkutatás
Nyelvtanulók  megakadásjelenségei  tolmácsolt  szövegekben
Creators: name: Csárdás, László Bence
Publisher: name: Beszédkutatás
Year: 2019

description: Disfluencies produced by language learners during interpreting


Disfluencies are omnipresent in human speech and can be ascribed to the temporary malfunctioning of speech planning and execution. Interpreted speech is different from spontaneous speech in many respects, the most relevant of which is the dominance of the input over the macroplanning. The aim of this study was to examine the disfluencies produced by B2 language learners during interpreting. 4 subjects participated in the research. Their task was to interpret a short Hungarian text into English and another short section from English into Hungarian. Aspects of analysis were (i) the disfluencies that occurred in the speech materials, (ii) the distribution of disfluencies according to type and source and target language, (iii) the distribution of speech disfluencies according to parts of speech and (iv) the complexity of the output produced by the language learners. Based on the results we can state that (i) we use approximately the same strategies in speech planning and execution irrespective of the source and target language, (ii) both language competence and transfer competence play a vital role in interpreting and (iii) the distribution of parts of speech differs according to the source and target language.
description: Beszédkutatás, Évf. 27 szám 1 (2019): Beszédkutatás
Seven Survival Senses: Evolutionary Training makes Discerning Differences more Natural than Spotting Similarities
Creators: name: Kashyap, Ravi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences
subject: 92D15 Problems related to evolution, 92C55 Biomedical imaging & signal processing, 60G35 Signal detection & filtering, 97B10 Educational research & planning

description: We discuss preliminary results from two experiments and put forth the notion that the development of sensory systems might be more geared towards discerning differences rather than for spotting similarities. We present the possibility that the necessity to spot differences might have evolved to ensure the survival of the organism, which suggests numerous other experiments to assess the response of participants to various stimuli. We consider our present state of affairs, wherein the need is to thrive and not merely survive, which requires us to spot similarities around us. We provide some suggestions on how this attribute can be developed, which includes mathematical education. We conclude with an alternate measure for intelligence, termed the Involvement Quotient (also, IQ), which gauges the level of involvement of the sense organs to whatever is happening around the individual.
description: World Futures
The Weak Coupling Spectrum around Isolated Vacua in N=4 Super Yang-Mills on T^3 with any Gauge Group
Creators: name: Hörnlund, Josef Lindman
name: Ohlsson, Fredrik
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The moduli space of flat connections for maximally supersymmetric Yang-Mills theories, in a space-time of the form T^3xR, contains isolated points, corresponding to normalizable zero energy states, for certain simple gauge groups G. We consider the low energy effective field theories in the weak coupling limit supported on such isolated points and find that when quantized they consist of an infinite set of harmonic oscillators whose angular frequencies are completely determined by the Lie algebra of G. We then proceed to find the isolated flat connections for all simple G and subsequently specify the corresponding effective field theories.
description: 32 pages, 11 figures, v4 Added chapter, Published version
Domain Growth in the Active Model B: Critical and Off-critical Composition
Creators: name: Pattanayak, Sudipta
name: Mishra, Shradha
name: Puri, Sanjay
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the ordering kinetics of an assembly of {\it active Brownian particles} (ABPs) on a two-dimensional substrate. We use a coarse-grained equation for the composition order parameter $ψ({\bf r},t)$, where ${\bf r}$ and $t$ denote space and time, respectively. The model is similar to the {\it Cahn-Hilliard equation} or {\it Model B} (MB) for a conserved order parameter with an additional activity term of strength $λ$. This model has been introduced by Wittkowski et al., Nature Comm. {\bf 5}, 4351 (2014), and is termed {\it Active Model B} (AMB). We study domain growth kinetics and dynamical scaling of the correlation function for the AMB with critical and off-critical compositions. The quantity $P = \mbox{sign}(λ\times ψ_0)$ governs the asymptotic growth kinetics for the off-critical AMB, where $ψ_0$ denotes the average order parameter. For negative $P$, the domain growth law is the usual Lifshitz-Slyozov growth law with $L(t,λ) \sim t^{1/3}$. For positive $P$, the growth law shows a crossover to a novel growth law $L(t,λ) \sim t^{1/4}$. Further, the correlation function shows good dynamical scaling for the off-critical AMB but the scaling function has a dependency on $ψ_0$ and $λ$. We also study the effects of both additive and multiplicative noise on the AMB.
title: From Chaos To Stability. The Influence Of Stock-Recruitment Dynamics
Creators: name: Lewy, Peter
name: Lassen, Hans
Publisher: name: ASC 1997 - V
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The dynamics of standard single species Baranov prediction models including a stock-recruitmentrelationship for a comprehensive family of stock-recruitment models defined by Deriso andSchnute have been examined. Theoretically it has been shown that the Ricker and Logistic stockrecruitmentmodels can exhibit cyclic or chaotic behaviour while the Beverton and Holt modelalways results in stable equilibrium. A formula has been derived for analytical caIculation ofthereference point for fisheries management, F crash . The theory developed has been applied to sevenNorth East Atlantic stocks including five cod stocks. The results show that some ofthe stocksmay exhibit cyclic behaviour for low levels of fishing mortality rate. Analyses of estimatedreference points indicate that the choice ofthe stock-recruitment model used in assessments maybe crucial from a management point ofview. Ifdoubt exists about the choice of model and if Fcra.shis chosen as the reference point, the precautionary approach makes it advisable to choose thereference point based on the Ricker stock-recruitment model instead ofthe Beverton and Holtmodel because this reduces the risk of exceeding the reference point. However, if Fmsy is chosenas reference point then the Beverton and Holt model should be preferred.
The Evolution of Dust in the Early Universe with Applications to the Galaxy SDSS J1148+5251
Creators: name: Dwek, Eli
name: Galliano, Frederic
name: Jones, Anthony P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Dusty hyperluminous galaxies in the early universe provide unique environments for studying the role of massive stars in the formation and destruction of dust. At redshifts above ~ 6, when the universe was less than ~ 1 Gyr old, dust could have only condensed in the explosive ejecta of Type II supernovae (SNe), since most of the progenitors of the AGB stars, the major alternative source of interstellar dust, did not have time to evolve off the main sequence since the onset of star formation. In this paper we present analytical models for the evolution of the gas, dust, and metals in high redshift galaxies, with a special application to SDSS J1148+5251, a hyperluminous quasar at z = 6.4. We find that an average supernova must condense at least 1 Msun of dust to account for the observed dust mass in this quasar. Observationally, it is in excess of the largest dust yield of ~0.02 Msun found thus far in the ejecta of any SN. If future observations find this to be a typical supernova dust yield, then additional processes, such as accretion onto preexisting grains, or condensation around the AGN will need to be invoked to account for the large amount of dust in this and similar objects. The galaxy's star formation history is still uncertain, and current observations of the gas, metal, and dust contents of J1148 can be reproduced by either an intensive and short burst of star formation (~ 1000 Msun/yr) with a duration of ~ 100 Myr, or a much lower star formation rate (~ 100 Msun/yr) occurring over the lifetime of the galaxy.
description: 35 pages, 11 figures, accepted for publication in the Astrophysical Journal
title: The Application Of A Sustainability Criterion To Demersal Stocks In The ICES Area
Creators: name: Cook, R. M.
Publisher: name: ASC 1997 - V
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Applying replacement line theory to observed stock recruitment scatter plots, a reference value Gloss is defined which corresponds to the replacement line at the lowest observed spawning stock biomass. The probability that demersal fish stocks in the ICES have been fished above this level over the last decade,'and ttierefore likely to decline still further, is estimated using a bootstrap procedure. About 60% of the stocks have been fished with probabilities greater than 10% and 25% with a probability greater than 30%. This is consistent with the observation that most stocks have declined for many years. For a number of stocks, the lowest SSB corresponds to a region where recruitment is reduced. This combined witti replacement lines above G loss means that there is an increased risk of stock collapse. It is possible using the replacement line approach to identify fishing rriortality rates which produce low probabilities of exceeding Gloss ' At presentabout half the stocks examined fail to meet the criterion of a 10% or less probability of exceeding Gloss
Scaling of Saddle-Node Bifurcations: Degeneracies and Rapid Quantitative Changes
Creators: name: Kuehn, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: The scaling of the time delay near a "bottleneck" of a generic saddle-node bifurcation is well-known to be given by an inverse square-root law. We extend the analysis to several non-generic cases for smooth vector fields. We proceed to investigate $C^0$ vector fields. Our main result is a new phenomenon in two-parameter families having a saddle-node bifurcation upon changing the first parameter. We find distinct scalings for different values of the second parameter ranging from power laws with exponents in (0,1) to scalings given by O(1). We illustrate this rapid quantitative change of the scaling law by a an overdamped pendulum with varying length.
description: preprint version - for final version see journal reference
Eodendrus hoabinicus Belokobylskij & Long 2005
Creators: name: Wang, Man-man
name: Tan, Jiang-li
name: He, Jun-Hua
name: Chen, Xue-xin
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Eodendrus
Eodendrus hoabinicus

description: Eodendrus hoabinicus Belokobylskij & Long, 2005 Eodendrus hoabinicus Belokobylskij et al., 2005: 2737. Examined material. Female (ZJUH): China, Hainan, Jianfengling, 18°42'25"N, 108°49'47"E, 1200m elev., 7. VI.2007, Liu Jing-xian, No.200702549. Distribution. China (Hainan), Vietnam. Notes. This species is new to the fauna of China. Type specimens are preserved in the Institute of Ecology and Biological Resources, Hanoi, Vietnam (IEBR).
description: Published as part of Wang, Man-man, Tan, Jiang-li, He, Jun-Hua & Chen, Xue-xin, 2009, The genus Eodendrus Belokobylskij (Hymenoptera, Braconidae, Doryctinae) from China, with description of a new species, pp. 43-50 in ZooKeys 27 (27) on page 46, DOI: 10.3897/zookeys.27.252, http://zenodo.org/record/576566
description: {"references": ["Belokobylskij SA, Chen XX, Long KD (2005) Revision of the genus Eodendrus Belokobylskij (Hymenoptera: Braconidae, Doryctinae). Journal of Natural History 39 (29): 2715 - 2743. doi: 10.1080 / 00222930500114459."]}
Synchronizing Chaos with Imperfections
Creators: name: Sugitani, Yoshiki
name: Zhang, Yuanzhao
name: Motter, Adilson E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Previous research on nonlinear oscillator networks has shown that chaos synchronization is attainable for identical oscillators but deteriorates in the presence of parameter mismatches. Here, we identify regimes for which the opposite occurs and show that oscillator heterogeneity can synchronize chaos for conditions under which identical oscillators cannot. This effect is not limited to small mismatches and is observed for random oscillator heterogeneity on both homogeneous and heterogeneous network structures. The results are demonstrated experimentally using networks of Chua's oscillators and are further supported by numerical simulations and theoretical analysis. In particular, we propose a general mechanism based on heterogeneity-induced mode mixing that provides insights into the observed phenomenon. Since individual differences are ubiquitous and often unavoidable in real systems, it follows that such imperfections can be an unexpected source of synchronization stability.
description: published version
Magnetic and thermal properties of the S = 1/2 zig-zag spin-chain compound In2VO5
Creators: name: Singh, Yogesh
name: McCallum, R. W.
name: Johnston, D. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Static magnetic susceptibility χ, ac susceptibility χ_{ac} and specific heat C versus temperature T measurements on polycrystalline samples of In2VO5 and χand C versus T measurements on the isostructural, nonmagnetic compound In2TiO5 are reported. A Curie-Wiess fit to the χ(T) data above 175 K for In2VO5 indicates ferromagnetic exchange between V^{4+} (S = 1/2) moments. Below 150 K the χ(T) data deviate from the Curie-Weiss behavior but there is no signature of any long range magnetic order down to 1.8 K. There is a cusp at 2.8 K in the zero field cooled (ZFC) χ(T) data measured in a magnetic field of 100 Oe and the ZFC and field cooled (FC) data show a bifurcation below this temperature. The frequency dependence of the χ_{ac}(T) data indicate that below 3 K the system is in a spin-glass state. The difference ΔC between the heat capacity of In2VO5 and In2TiO5 shows a broad anomaly peaked at 130 K. The entropy upto 300 K is more than what is expected for S = 1/2 moments. The anomaly in ΔC and the extra entropy suggests that there may be a structural change below 130 K in In2VO5.
description: 6 pages, 7 figures, 1 table
Synthesis of cyclitol-based glucosidase inhibitors
Creators: name: Caron, Gaétan
Publisher: name: University of British Columbia
Year: 2010

description: The first conduritol aziridine (1,2-dideoxy-1,2-epimino-myo-inositol, 1) was synthesized in seven steps from myo-inositol (2) and inhibits pABG5 β-glucosidase and yeast ⍺-glucosidase irreversibly. 1,2-0-Cyclohexylidene-myo-inositol (3) was obtained by reaction of 2 with cyclohexanone. Benzylation of 3 followed by hydrolysis of the ketal gave l,4,5,6-tetra-0-benzyl-myo-inositol (5). The two free hydroxyl groups in 5 were methanesulfonylated and the axial mesyl group in l,4,5,6-tetra-0-benzyl-2,3-di-0-methanesulfonyl-myo-inositol (12) was selectively displaced by an azido group. The resulting 1-azido-2,3,4,5-tetxa-0-benzyl-1-deoxy-6-0-methanesulfonyl-scyllo-inositol (13) was hydrogenated in the presence of HC1 to give 1-amino-1-deoxy-2-0-methanesulfonyl-scyllo-inositol (24) hydrochloride. Cyclisation of 24 under basic aqueous conditions yielded DL-1. [Formula Omitted] The dissociation constant Ki and the inactivation rate constant ki for inactivation of pABG5 β-glucosidase by 1 were calculated to be 3.0 mM and 0.077 min⁻¹ respectively. For yeast ⍺-glucosidase inactivation, values of Ki, and ki were found to be 9.5 mM and 0.39 min-1 respectively. Finally, 24 and 31 were tested as reversible (non-covalent) inhibitors of both the glucosidases and the respective inhibition constants (Ki) determined.
title: Short Term Yield And Effort Impacts Of A Precautionary Management Strategy Based On Marine Refugia. Simulations With Shadys (Simulateur Halieutique De Dynamiques Spatiales)
Creators: name: Maury, Olivier
name: Gascuel, Didier
Publisher: name: ASC 1997 - V
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.By prohibiting fishing activities on given areas, or by creating fully protected marineparks, the use of protected areas (refugia, natural parks, ...) is getting more and morefrequent. This paper attempts to show as simply as possible the short term effects of theexistence of a protected area on fishing yield and on the distribution of fishing effort. Forthis purpose, different scenarii of spatial management have been explored throughSHADYS simulator (Simulateur HAlieutique de DYnamiques Spatiales). Following ashort presentation of SHADYS, some simulations are conducted, by varying the total areaof the protected boxes.
Spitzer/IRS Imaging and Spectroscopy of the luminous infrared galaxy NGC 6052 (Mrk 297)
Creators: name: Whelan, D. G.
name: Devost, D.
name: Charmandaris, V.
name: Marshall, J. A.
name: Houck, J. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present photometric and spectroscopic data of the interacting starburst galaxy NGC 6052 obtained with the Spitzer Space Telescope. The mid-infrared (MIR) spectra of the three brightest spatially resolved regions in the galaxy are remarkably similar and are consistent with dust emission from young nearly coeval stellar populations. Analysis of the brightest infrared region of the system, which contributes ~18.5 % of the total 16\micron flux, indicates that unlike similar off-nuclear infrared-bright regions found in Arp 299 or NGC 4038/9, its MIR spectrum is inconsistent with an enshrouded hot dust (T > 300K) component. Instead, the three brightest MIR regions all display dust continua of temperatures less than ~ 200K. These low dust temperatures indicate the dust is likely in the form of a patchy screen of relatively cold material situated along the line of sight. We also find that emission from polycyclic aromatic hydrocarbons (PAHs) and the forbidden atomic lines is very similar for each region. We conclude that the ionization regions are self-similar and come from young (about 6 Myr) stellar populations. A fourth region, for which we have no MIR spectra, exhibits MIR emission similar to tidal tail features in other interacting galaxies.
description: 20 pages in preprint form, estimated 7 pages in ApJ Aeptember 10, 2007, v666n 2 issue, six encapsulated postscript figures
GRB 140102A: Insight into Prompt Spectral Evolution and Early Optical Afterglow Emission
Creators: name: Gupta, Rahul
name: Oates, S. R.
name: Pandey, S. B.
name: Castro-Tirado, A. J.
name: Joshi, Jagdish C.
name: Hu, Y. -D.
name: Valeev, A. F.
name: Zhang, B. B.
name: Zhang, Z.
name: Kumar, Amit
name: Aryan, A.
name: Lien, A.
name: Kumar, B.
name: Cui, Ch.
name: Wang, Ch.
name: Dimple
name: Bhattacharya, D.
name: Sonbas, E.
name: Bai, J.
name: Tello, J. C.
name: Gorosabel, J.
name: Cerón, J. M. Castro
name: Porto, J. R. F.
name: Misra, K.
name: De Pasquale, M.
name: Caballero-García, M. D.
name: Jelínek, M.
name: Kubánek, P.
name: Minaev, P. Yu.
name: Cunniffe, R.
name: Sánchez-Ramírez, R.
name: Guziy, S.
name: Jeong, S.
name: Tiwari, S. N.
name: Razzaque, S.
name: Bhalerao, V.
name: Pintado, V. C.
name: Sokolov, V. V.
name: Zhao, X.
name: Fan, Y.
name: Xin, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present and perform a detailed analysis of multi-wavelength observations of \thisgrb, an optical bright GRB with an observed reverse shock (RS) signature. Observations of this GRB were acquired with the BOOTES-4 robotic telescope, the \fermi, and the \swift missions. Time-resolved spectroscopy of the prompt emission shows that changes to the peak energy (\Ep) tracks intensity and the low-energy spectral index seems to follow the intensity for the first episode, whereas this tracking behavior is less clear during the second episode. The fit to the afterglow light curves shows that the early optical afterglow can be described with RS emission and is consistent with the thin shell scenario of the constant ambient medium. The late time afterglow decay is also consistent with the prediction of the external forward shock (FS) model. We determine the properties of the shocks, Lorentz factor, magnetization parameters, and ambient density of \thisgrb, and compare these parameters with another 12 GRBs, consistent with having RS produced by thin shells in an ISM-like medium. The value of the magnetization parameter ($R_{\rm B} \approx 18$) indicates a moderately magnetized baryonic dominant jet composition for \thisgrb. We also report the host galaxy photometric observations of \thisgrb obtained with 10.4m GTC, 3.5m CAHA, and 3.6m DOT telescopes and find the host (photo $z$ = $2.8^{+0.7}_{-0.9}$) to be a high mass, star-forming galaxy with a star formation rate of $20 \pm 10 \msun$ $\rm yr^{-1}$.
description: 27 pages, 16 figures, 12 tables, accepted for publication in MNRAS
Extensions in FormCalc 5.3
Creators: name: Hahn, T.
name: Illana, J. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new tool for editing Feynman diagrams as well as several extensions in version 5.3 of the package FormCalc for the calculation of Feynman diagrams.
description: 8 pages, contribution to the proceedings of the ACAT workshop, Amsterdam, April 23-27, 2007
Alaphangjellemzők vizsgálata enyhe és középsúlyos  értelmi fogyatékkal élő felnőttek beszédében
Creators: name: Jankovics, Julianna
Publisher: name: Beszédkutatás
Year: 2019

description: Fundamental frequency characteristics of mild and moderate intellectual disabled adults’ speech


The purpose of this study was to analyse the fundamental frequency characteristics of mild and moderate intellectual disabled adults’ speech. Altogether 10 women (5 participants in the intellectual disabled group and 5 control adults, aged between 20 and 62 years) participated in the research. The speech samples consisted of spontaneous and read speech. The mean fundamental frequency and f 0 maximum/f 0 minimum ratio were analysed in the declarative utterances. The results were compared between the group of the intellectual disabled adults and the age- and gender-matched control group of typical speakers. The findings of this experiment were the following: 1. The mean fundamental frequency was higher in read speech than in spontaneous speech in both the intellectual disabled adults’ and the control adults’ speech. 2. The mean fundamental frequency was higher in the intellectual disabled adults’ than in the control adults’ speech, in accordance with earlier studies of the international literature.
description: Beszédkutatás, Évf. 27 szám 1 (2019): Beszédkutatás
title: Application Of The Precautionary Approach From The Bottom Up: Uncertainty And Stock Rebuilding In The Mid-Atlantic Region Of The Northwest Atlantic
Creators: name: Gabriel, W.
name: Serchuk, F.
name: Terceiro, M.
Publisher: name: ASC 1997 - V
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The intent of the precautionary approach in fisheries management can be characterized asone of avoidance: The avoidance of undesirable outcomes, from overexploitation to social andeconomic dislocation; the avoidance of irreversible or slowly reversible changes; and theavoidance of management inaction even though scientific information may be lacking (FAO,1995). However, for overfished stocks, the undesirable outcome of overexploitation hasalready occurred.
A nyelvkontúr automatikus követése ultrahangos felvételeken
Creators: name: Zhao, Lu
name: Czap, László
Publisher: name: Beszédkutatás
Year: 2019

description: Automatic tongue contour tracking in ultrasound recordings


In recent decades, several types of devices have been constructed to track the invisible movement of the tongue. One of these is ultrasound imaging. The advantage of the measurement method is that it is suitable to track rapid movements, as well, image and sound can be synchronized, and it only causes the speaker, who is not affected by harmful radiation, minimal inconvenience. Its disadvantage is that it does not provide a full three-dimensional image but only shows a longitudinal or transverse section and the tip of the tongue cannot be seen. The longitudinal (midsagittal) section was used to track tongue movements. The automatic assessment of ultrasound pictures is a key issue as the number of frames amounts to several undred thousand so it is impossible to process them manually. The difficulty of tracking tongue contour lies in the fact that the images have a noisy background and the contour line is discontinuous. An algorithm based on dynamic programming was elaborated to track the movement of the back of the tongue. With an extreme size edge enhancing kernel and averaging construction, the process simultaneously handles the problems of break of continuity and noise. In the image obtained after smoothing, the lightest line is searched for from the left to the right edge of the image. The points of the curve thus obtained follow the uneven line of the tongue contour. To smooth the curve, screening based on discrete cosine transformation was applied.
description: Beszédkutatás, Évf. 27 szám 1 (2019): Beszédkutatás
Multi-physics modeling of metal-insulated REBCO magnets with screening currents
Creators: name: Pardo, Enric
name: Dadhich, Anang
name: Srivastava, Arpit Kumar
name: Fazilleau, Philippe
name: Jerance, Nikola
name: Varney, Andrew
name: Steven, Ball
Publisher: name: Zenodo
Year: 2024

description: Invited talk at the 9th International Workshop on Numerical Modelling of High Temperature Superconductors (HTS 2024) , Bad Zurzach, Switzerland, 10-13 June 2024
title: The Use Of Multiple Commercial Boats To Conduct A Stratified-Random Survey For Groundfish In The Gulf Of St. Lawrence
Creators: name: Frechet, Alain
Publisher: name: ASC 1997 - W
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.This paper introduces the various types of influences that may occur with the use of multipleboats and ways to reduce their impact on the abundance index. This is followed by two fieldexperiments that are aimed to reduce this variabiIily. To begin these surveys, a first step tominimize inter-boat variability in wing spread was the use of a single type of fishing gear.Despite this, results of the first field experiment monitored with Scanmar technology produced a25% variability in the wing spread among the nine boats. The wing spread is important as it isthe variable by which the abundance index is derived. The next step in standardizing thecatching performance of fishing gears used in these surveys was to apply a restrictor cable tophysically limit the wing spread of the trawls used by all nine boats. The proper adjustment ofthis cable reduced the inter-boat variability to 6%. Another advantage that comes with the use ofthis technique, is that the opening of the trawl is not inf1uenced by the towing depth, a commonbias that is weIl documented in groundfish surveys. FinaIly, results of the first operational survey to use the restrictor eable (the seventh in the time series) are presented along witheonsiderations on ways to introduee this teehnique to the analysis without eompromising thetime series.
Accurate flux calibration of GW170817: is the X-ray counterpart on the rise?
Creators: name: Troja, E.
name: O'Connor, B.
name: Ryan, G.
name: Piro, L.
name: Ricci, R.
name: Zhang, B.
name: Piran, T.
name: Bruni, G.
name: Cenko, S. B.
name: van Eerten, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray emission from the gravitational wave transient GW170817 is well described as non-thermal afterglow radiation produced by a structured relativistic jet viewed off-axis. We show that the X-ray counterpart continues to be detected at 3.3 years after the merger. Such long-lasting signal is not a prediction of the earlier jet models characterized by a narrow jet core and a viewing angle of about 20 deg, and is spurring a renewed interest in the origin of the X-ray emission. We present a comprehensive analysis of the X-ray dataset aimed at clarifying existing discrepancies in the literature, and in particular the presence of an X-ray rebrightening at late times. Our analysis does not find evidence for an increase in the X-ray flux, but confirms a growing tension between the observations and the jet model. Further observations at radio and X-ray wavelengths would be critical to break the degeneracy between models.
description: 10 pages, 5 figures, submitted to MNRAS
Large semilattices of breadth three
Creators: name: Wehrung, Friedrich
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Mathematics (math.GM)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 06A07 (Primary), 03C55 (Secondary), 03E05, 03E35

description: A 1984 problem of S.Z. Ditor asks whether there exists a lattice of cardinality aleph two, with zero, in which every principal ideal is finite and every element has at most three lower covers. We prove that the existence of such a lattice follows from either one of two axioms that are known to be independent of ZFC, namely (1) Martin's Axiom restricted to collections of aleph one dense subsets in posets of precaliber aleph one, (2) the existence of a gap-1 morass. In particular, the existence of such a lattice is consistent with ZFC, while the non-existence of such a lattice implies that omega two is inaccessible in the constructible universe. We also prove that for each regular uncountable cardinal $κ$ and each positive integer n, there exists a join-semilattice L with zero, of cardinality $κ^{+n}$ and breadth n+1, in which every principal ideal has less than $κ$ elements.
description: Fund. Math., to appear
Deep radio images of the HEGRA and Whipple TeV sources in the Cygnus OB2 region
Creators: name: Marti, Josep
name: Paredes, Josep M.
name: H., Ishwara Chandra C.
name: Bosch-Ramon, Valenti
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. The modern generation of Cherenkov telescopes has revealed a new population of gamma-ray sources in the Galaxy. Some of them have been identified with previously known X-ray binary systems while other remain without clear counterparts a lower energies. Our initial goal here was reporting on extensive radio observations of the first extended and yet unidentified source, namely TeV J2032+4130. This object was originally detected by the HEGRA telescope in the direction of the Cygnus OB2 region and its nature has been a matter of debate during the latest years. Aims. We aim to pursue our radio exploration of the TeV J2032+4130 position that we initiated in a previous paper but taking now into account the latest results from new Whipple and MILAGRO TeV telescopes. Methods. Our investigation is mostly based on interferometric radio observations with the Giant Metre Wave Radio Telescope (GMRT) close to Pune (India) and the Very Large Array (VLA) in New Mexico (USA). We also conducted near infrared observations with the 3.5 m telescope and the OMEGA2000 camera at the Centro Astronomico Hispano Aleman (CAHA) in Almeria (Spain). Results. We present deep radio maps centered on the TeV J2032+4130 position at different wavelengths. In particular, our 49 and 20 cm maps cover a field of view larger than half a degree that fully includes the Whipple position and the peak of MILAGRO emission. Our most important result here is a catalogue of 153 radio sources detected at 49 cm within the GMRT antennae primary beam with a full width half maximum (FWHM) of 43 arc-minute. Moreover, our multi-configuration VLA images reveal the non-thermal extended emission previously reported by us with improved angular resolution.
description: 10 pages, 8 figures, 1 online catalogue. Accepted for publication in Astronomy & Astrophysics
Thermonuclear Flame Spreading on Rapidly Spinning Neutron Stars: Indications of the Coriolis Force?
Creators: name: Bhattacharyya, Sudip
name: Strohmayer, Tod E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Millisecond period brightness oscillations during the intensity rise of thermonuclear X-ray bursts are likely caused by an azimuthally asymmetric, expanding burning region on the stellar surface. The time evolution of the oscillation amplitude during the intensity rise encodes information on how the thermonuclear flames spread across the stellar surface. This process depends on properties of the accreted burning layer, surface fluid motions, and the surface magnetic field structure, and thus can provide insight into these stellar properties. We present two examples of bursts from different sources that show a decrease in oscillation amplitude during the intensity rise. Using theoretical modeling, we demonstrate that the observed amplitude evolution of these bursts is not well described by a uniformly expanding circular burning region. We further show that by including in our model the salient aspects of the Coriolis force (as described by Spitkovsky, Levin, and Ushomirsky) we can qualitatively reproduce the observed evolution curves. Our modeling shows that the evolutionary structure of burst oscillation amplitude is sensitive to the nature of flame spreading, while the actual amplitude values can be very useful to constrain some source parameters.
description: 8 pages, 4 figures, accepted for publication in ApJ Letters
title: Performance Of Mobile And Static Gears Used In Single And Multi-Species Resource Surveys: A Review
Creators: name: Walsh, Stephen J.
Publisher: name: ASC 1997 - W
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.In many fisheries research institutes, annual surveys are conducted to estimate abundance and biomass ofcommercial finfish and shellfish species using either mobile fishing gears such as bOllom trawls, beamtrawls and dredges or static gears such as longlines, gillnets and traps. In recent years, research has beendirected towards measuring the catching performance ofthese various gears by focusing on selectivity andefficiency. Knowledge ofthe factors afTecting catching perfonnance together with research on natural andfishing gear induced behaviour is imperative for beller estimation of the stock resource.This paper summarizes design criteria, operating principles, performance, catching efficiency of mobileand statie gears and considers recent technology and methods whieh can be used to optimize the efficieneyof these survey gears.
Notebook articles: towards a transformative publishing experience in nonlinear science
Creators: name: Chandre, Cristel
name: Dubois, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Open Science, Reproducible Research, Findable, Accessible, Interoperable and Reusable (FAIR) data principles are long term goals for scientific dissemination. However, the implementation of these principles calls for a reinspection of our means of dissemination. In our viewpoint, we discuss and advocate, in the context of nonlinear science, how a notebook article represents an essential step toward this objective by fully embracing cloud computing solutions. Notebook articles as scholar articles offer an alternative, efficient and more ethical way to disseminate research through their versatile environment. This format invites the readers to delve deeper into the reported research. Through the interactivity of the notebook articles, research results such as for instance equations and figures are reproducible even for non-expert readers. The codes and methods are available, in a transparent manner, to interested readers. The methods can be reused and adapted to answer additional questions in related topics. The codes run on cloud computing services, which provide easy access, even to low-income countries and research groups. The versatility of this environment provides the stakeholders - from the researchers to the publishers - with opportunities to disseminate the research results in innovative ways.
description: This article is an editorial viewpoint
title: How To Estimate The Biomass Of A Stock, The Area Of A Fishery And The Efficiency Of The Gears For Sessile And Low Mobility Animals : The Example Of The Scallop
Creators: name: Dupouy, Hervé
name: Mahe, Jean-Claude
name: Kergoat, Bernard
Publisher: name: ASC 1997 - W
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.The model of LESLIE and DAVIS (1939) is currently in use for estimate the biomassof a stock. But the major assumption of the model relates to an homogeneous density of theindividuals of the stock.For the sessil and low mobility animals we assume that density follows a linearrelationship between a maximum and a minimum value. It is therefore possible to easilyestimate the biomass of a stock, the area of the fishery and the effideney of the gears, if weknow the demographie strueture ofthe individuals in the stock and the evolution of effort andcatch by unit oftime in the fishery. The example ofthe scallop, Peelen maximlls, ofthe Ba)' ofConcameau (Southem Brittany, France) is given.
Coulomb blockade in graphene nanoribbons
Creators: name: Sols, F.
name: Guinea, F.
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose that recent transport experiments revealing the existence of an energy gap in graphene nanoribbons may be understood in terms of Coulomb blockade. Electron interactions play a decisive role at the quantum dots which form due to the presence of necks arising from the roughness of the graphene edge. With the average transmission as the only fitting parameter, our theory shows good agreement with the experimental data.
description: 4 pages, 2 figures
A Framework for Explainable Concept Drift Detection in Process Mining
Creators: name: Adams, Jan Niklas
name: van Zelst, Sebastiaan J.
name: Quack, Lara
name: Hausmann, Kathrin
name: van der Aalst, Wil M. P.
name: Rose, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Rapidly changing business environments expose companies to high levels of uncertainty. This uncertainty manifests itself in significant changes that tend to occur over the lifetime of a process and possibly affect its performance. It is important to understand the root causes of such changes since this allows us to react to change or anticipate future changes. Research in process mining has so far only focused on detecting, locating and characterizing significant changes in a process and not on finding root causes of such changes. In this paper, we aim to close this gap. We propose a framework that adds an explainability level onto concept drift detection in process mining and provides insights into the cause-effect relationships behind significant changes. We define different perspectives of a process, detect concept drifts in these perspectives and plug the perspectives into a causality check that determines whether these concept drifts can be causal to each other. We showcase the effectiveness of our framework by evaluating it on both synthetic and real event data. Our experiments show that our approach unravels cause-effect relationships and provides novel insights into executed processes.
Chromatographic determination of organotin compounds by using spectrophotometric and thermospray ionization mass spectrometric detection
Creators: name: Nwata, Basil Ugwunna
Publisher: name: University of British Columbia
Year: 2010

description: An assay based on HPLC-UV, HPLC-GFAAS and HPLC-MS was developed for the chromatographic separation and characterization of organotin compounds in some marine invertebrates of British Columbia. To enable HPLC-UV detection, butyltin complexes of high extinction coefficients were synthesized, and their chromatographic behavior is described. This approach was abandoned because of the increase in instability of the derivatives. In the marine organisms studied, mainly bivalves, tributyltin and dibutyltin compounds were detected by HPLC-GFAAS. The presence of these compounds indicates that the maritime industry or the lumber industry is the major source of butyltin pollution in the areas sampled. Varying amounts of tributyltin compounds in the range 1.14-4.29 μg/mL as Sn (wet weight) and dibutyltin compounds in the range 0.81-4.62 μg/g as Sn (wet weight) were found in the tissues. The butyltin content of the shells of marine organisms was also examined. Varying amounts of tributyltin and dibutyltin compounds in the concentration range 6.60-115.60 μg/g as Sn and 5.20-49.40 μg/g as Sn respectively were detected by atomic absorption spectrophotometry.