cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ab initio lattice dynamics and electron-phonon coupling of Bi(111)
Creators: name: Ortigoza, M. Alcántara
name: Sklyadneva, I. Yu.
name: Heid, R.
name: Chulkov, E. V.
name: Rahman, T. S.
name: Bohnen, K. -P.
name: Echenique, P. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive ab initio study of structural, electronic, lattice dynamical and electron-phonon coupling properties of the Bi(111) surface within density functional perturbation theory. Relativistic corrections due to spin-orbit coupling are consistently taken into account. As calculations are carried out in a periodic slab geometry, special attention is given to the convergence with respect to the slab thickness. Although the electronic structure of Bi(111) thin films varies significantly with thickness, we found that the lattice dynamics of Bi(111) is quite robust and appears converged already for slabs as thin as 6 bilayers. Changes of interatomic couplings are confined mostly to the first two bilayers, resulting in super-bulk modes with frequencies higher than the optic bulk spectrum, and in an enhanced density of states at lower frequencies for atoms in the first bilayer. Electronic states of the surface band related to the outer part of the hole Fermi surfaces exhibit a moderate electron-phonon coupling of about 0.45, which is larger than the coupling constant of bulk Bi. States at the inner part of the hole surface as well as those forming the electron pocket close to the zone center show much increased couplings due to transitions into bulk projected states near Gamma_bar. For these cases, the state dependent Eliashberg functions exhibit pronounced peaks at low energy and strongly deviate in shape from a Debye-like spectrum, indicating that an extraction of the coupling strength from measured electronic self-energies based on this simple model is likely to fail.
description: 30 pages, 11 figures
Stable cubulations, bicombings, and barycenters
Creators: name: Durham, Matthew G.
name: Minsky, Yair N.
name: Sisto, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 20F67, 20F65, 30F60, 57M60, 57M07

description: We prove that the hierarchical hulls of finite sets of points in mapping class groups and Teichmüller spaces are stably approximated by a CAT(0) cube complexes, strengthening a result of Behrstock-Hagen-Sisto. As applications, we prove that mapping class groups are semihyperbolic and Teichmüller spaces are coarsely equivariantly bicombable, and both admit stable coarse barycenters. Our results apply to the broader class of "colorable" hierarchically hyperbolic spaces and groups.
description: 80 pages, 25 figures
A distributional approach to fractional Sobolev spaces and fractional variation: asymptotics II
Creators: name: Bruè, Elia
name: Calzi, Mattia
name: Comi, Giovanni E.
name: Stefani, Giorgio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 26A33, 26B30, 28A33, 47G40

description: We continue the study of the space $BV^α(\mathbb R^n)$ of functions with bounded fractional variation in $\mathbb R^n$ and of the distributional fractional Sobolev space $S^{α,p}(\mathbb R^n)$, with $p\in [1,+\infty]$ and $α\in(0,1)$, considered in the previous works arXiv:1809.08575 and arXiv:1910.13419. We first define the space $BV^0(\mathbb R^n)$ and establish the identifications $BV^0(\mathbb R^n)=H^1(\mathbb R^n)$ and $S^{α,p}(\mathbb R^n)=L^{α,p}(\mathbb R^n)$, where $H^1(\mathbb R^n)$ and $L^{α,p}(\mathbb R^n)$ are the (real) Hardy space and the Bessel potential space, respectively. We then prove that the fractional gradient $\nabla^α$ strongly converges to the Riesz transform as $α\to0^+$ for $H^1\cap W^{α,1}$ and $S^{α,p}$ functions. We also study the convergence of the $L^1$-norm of the $α$-rescaled fractional gradient of $W^{α,1}$ functions. To achieve the strong limiting behavior of $\nabla^α$ as $α\to0^+$, we prove some new fractional interpolation inequalities which are stable with respect to the interpolating parameter.
description: 43 pages
Philetor brachypterus
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Philetor
Philetor brachypterus

description: Philetor brachypterus [Temmick, 1840] Vespertilio brachypterus Temmick, 1840: 215, pl. 53; Padang district, Sumatra, INDONESIA (Collector unknown; Type unknown) [82]. Philetor brachypterus [23]. Common English name: Narrow-winged Brown Bat Barcode Index Number: BOLD:AAF6860 (1 DNA barcode from Peninsular Malaysia; Fig 6) Remarks: DNA barcodes recorded as P. brachypterus are associated with two BINs, BOLD: AAF6860 and BOLD:AAF6859. Hill and Francis [173] reported that specimens from Borneo and Peninsular Malaysia are similar in size, while Corbet and Hill [9] commented that size variation occurs within the species. Our NJ analysis suggested that the DNA barcode from Peninsular Malaysia (BM434-04) may represents a cryptic species (Fig 6), however, we retain the name P. brachypterus in our checklist pending further research. IUCN status: Least Concern Recorded at: Johor: Endau-Rompin National Park (BM434-04 was collected in year 2001 [4]); Perak: Unspecified [23]; Selangor: Unspecified [23], Ulu Gombak [53, 54]. P. brachypterus roosts in tree hollows and has been recorded in primary and secondary forests [14].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on pages 47-48, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["82. Temminck CJ. Monographies de mammalogie. Tome 2. Leiden and Paris; 1837 - 1841. 392 pp.", "23. Medway L. The wild mammals of Malaya. London: Oxford University Press. 1969.", "173. Hill JE, Francis CM. New bats (Mammalia: Chiroptera) and new records of bats from Borneo and Malaya. Bull Br Mus. 1984; 47 (5): 305 - 329.", "9. Corbet GB, Hill JE. The mammals of the Indomalayan region: a systematic review. Oxford: Oxford University Press; 1992.", "4. Francis CM, Borisenko AV, Ivanova NV, Eger JL, Lim BK, Guillen-Servent A, et al. The role of DNA barcodes in understanding and conservation of mammal diversity in Southeast Asia. PloS one. 2010 Sep 3. 5 (9): e 12575. https: // doi. org / 10.1371 / journal. pone. 0012575 PMID: 20838635", "53. Heller KG, Volleth M. Taxonomic position of \" Pipistrellus societatis \" Hill, 1972 and the karyological characteristics of the genus Eptesicus (Chiroptera: Vespertilionidae). J Zoolog Syst Evol Res. 1984; 22 (1): 65 - 77.", "54. Heller KG, Volleth MA. Fledermause aus Malaysia. 1. Beobachtungen zur Biologie, Morphologie und Taxonomie. Senckenb Biol. 1989; 69 (4 - 6): 243 - 76.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}
Additional file 1 of Identifying performance factors of long-term care facilities in the context of the COVID-19 pandemic: a scoping review protocol
Creators: name: Létourneau, Josiane
name: Bélanger, Emilie
name: Sia, Drissa
name: Beogo, Idrissa
name: Robins, Stephanie
name: Kruglova, Katya
name: Jubinville, Maripier
name: Tchouaket, Eric Nguemeleu
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 1: PRISMA-P.
Radio Frequency Models of Novae in eruption. I. The Free-Free Process in Bipolar Morphologies
Creators: name: Ribeiro, V. A. R. M.
name: Chomiuk, L.
name: Munari, U.
name: Steffen, W.
name: Koning, N.
name: O'Brien, T. J.
name: Simon, T.
name: Woudt, P. A.
name: Bode, M. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observations of novae at radio frequencies provide us with a measure of the total ejected mass, density profile and kinetic energy of a nova eruption. The radio emission is typically well characterized by the free-free emission process. Most models to date have assumed spherical symmetry for the eruption, although it has been known for as long as there have been radio observations of these systems, that spherical eruptions are to simplistic a geometry. In this paper, we build bipolar models of the nova eruption, assuming the free-free process, and show the effects of varying different parameters on the radio light curves. The parameters considered include the ratio of the minor- to major-axis, the inclination angle and shell thickness (further parameters are provided in the appendix). We also show the uncertainty introduced when fitting spherical model synthetic light curves to bipolar model synthetic light curves. We find that the optically thick phase rises with the same power law ($S_ν \propto t^2$) for both the spherical and bipolar models. In the bipolar case there is a "plateau" phase -- depending on the thickness of the shell as well as the ratio of the minor- to major-axis -- before the final decline, that follows the same power law ($S_ν \propto t^{-3}$) as in the spherical case. Finally, fitting spherical models to the bipolar model synthetic light curves requires, in the worst case scenario, doubling the ejected mass, more than halving the electron temperature and reducing the shell thickness by nearly a factor of 10. This implies that in some systems we have been over predicting the ejected masses and under predicting the electron temperature of the ejecta.
description: 9 pages, 6 figures, accepted for publication in ApJ, accompanying movie to figure 3 available at http://www.ast.uct.ac.za/~valerio/papers/radioI/
Approximate Completely Positive Semidefinite Factorizations and their Ranks
Creators: name: Abbasi, Paria
name: Klingler, Andreas
name: Netzer, Tim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper we show the existence of approximate completely positive semidefinite (cpsd) factorizations with a cpsd-rank bounded above (almost) independently from the cpsd-rank of the initial matrix. This is particularly relevant since the cpsd-rank of a matrix cannot, in general, be upper bounded by a function only depending on its size. For this purpose, we make use of the Approximate Caratheodory Theorem in order to construct an approximate matrix with a low-rank Gram representation. We then employ the Johnson-Lindenstrauss Lemma to improve to a logarithmic dependence of the cpsd-rank on the size.
description: v2: clarified and corrected some citations, v3: new title, close to published version
Crossover from charge order to strain glass in phase separated manganite thin films: Impact of thermal cycling and substrate induced strain
Creators: name: Agarwal, Vasudha
name: Siwach, P. K.
name: Awana, V. P. S.
name: Singh, H. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic and magnetotransport properties of single crystalline La1-x-yPryCaxMnO3 (x=0.42, y=0.40) thin films (~140 nm) deposited on (110) oriented LaAlO3 and SrTiO3 substrates exhibit a crossover from the high temperature antiferromagnetic-charge ordered insulator (AFM-COI) phase (T>TN) to strain glass (T
description: 7 pages, 4 figures
The infimum of the dual volume of convex co-compact hyperbolic $3$-manifolds
Creators: name: Mazzoli, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 30F40 (Primary) 57M50, 52A15

description: We show that the infimum of the dual volume of the convex core of a convex co-compact hyperbolic $3$-manifold with incompressible boundary coincides with the infimum of the Riemannian volume of its convex core, as we vary the geometry by quasi-isometric deformations. We deduce a linear lower bound of the volume of the convex core of a quasi-Fuchsian manifold in terms of the length of its bending measured lamination, with optimal multiplicative constant.
description: Updated introduction. To appear in Geometry & Topology
On the relevance of the H2 + O reaction pathway for the surface formation of interstellar water - A combined experimental and modeling study
Creators: name: Lamberts, Thanja
name: Cuppen, Herma
name: Fedoseev, Gleb
name: Ioppolo, Sergio
name: Chuang, Ko-Ju
name: Linnartz, Harold
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The formation of interstellar water has been commonly accepted to occur on the surfaces of icy dust grains in dark molecular clouds at low temperatures (10-20 K), involving hydrogenation reactions of oxygen allotropes. As a result of the large abundances of molecular hydrogen and atomic oxygen in these regions, the reaction H2 + O has been proposed to contribute significantly to the formation of water as well. However, gas phase experiments and calculations, as well as solid-phase experimental work contradict this hypothesis. Here, we use precisely executed temperature programmed desorption (TPD) experiments in an ultra-high vacuum setup combined with kinetic Monte Carlo simulations to establish an upper limit of the water production starting from H2 and O. These reactants are brought together in a matrix of CO2 in a series of (control) experiments at different temperatures and with different isotopological compositions. The amount of water detected with the quadrupole mass spectrometer upon TPD is found to originate mainly from contamination in the chamber itself. However, if water is produced in small quantities on the surface through H2 + O, this can only be explained by a combined classical and tunneled reaction mechanism. An absolutely conservative upper limit for the reaction rate is derived with a microscopic kinetic Monte Carlo model that converts the upper limit into a maximal possible reaction rate. Incorporating this rate into simulations run for astrochemically relevant parameters, shows that the upper limit to the contribution of the reaction H2 + O in OH, and hence water formation, is 11% in dense interstellar clouds. Our combined experimental and theoretical results indicate however, that this contribution is likely to be much lower.
description: 9 pages, 4 figures
Pipistrellus javanicus
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus javanicus

description: Pipistrellus javanicus [Gray, 1838] Scotophilus javanicus Gray, 1838: 498; Java, INDONESIA (Collector unknown; Type unknown) [205]. Pipistrellus javanicus [8]. Common English name: Javan Pipistrelle Barcode Index Number: DNA barcodes recorded as P. javanicus are associated with two BINs, BOLD: AAC 3383 and BOLD:AAL5777, but there are no DNA barcodes from Peninsular Malaysia. IUCN status: Least Concern Recorded at: Perak: Unspecified [23]; Pulau Pinang: Unspecified [23]; Pahang: Krau Wildlife Reserve [41], Gunung Benom, [140]; Selangor: Air Hitam Forest Reserve [55]; Kedah: Ulu Muda Forest Reserve [57]. P. javanicus has been recorded in wide variety of habitats including mangroves, lowland and hill forests, towns and rubber plantations, and found roosting in treeferns, fallen logs and caves [11, 14, 23].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on page 48, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["205. Gray JE. A revision of the genera of bats. Magazine of Zoology and Botany, Edinburgh and Dublin. 1838; 2: 483 - 505.", "8. Chasen FN. A handlist of Malaysian mammals (A systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands). Bulletin of the Raffles Museum; 1940.", "23. Medway L. The wild mammals of Malaya. London: Oxford University Press. 1969.", "41. Zubaid A. A comparison of the bat fauna between a primary and fragmented secondary forest in Peninsular Malaysia. Mammalia. 1993; 57 (2): 201 - 206.", "140. Hill JE. The Gunong Benom Expedition 1967. 4. New records of Malayan bats, with taxonomic notes and the description of a new Pipistrellus. Bull Br Mus.: Zool. 1972; 23: 21 - 42.", "55. Azlan JM, Sharma RS, Zakaria M. Species diversity and relative abundance of understorey bats at Air Hitam forest reserve, Selangor, Malaysia. Mal Nat J. 2000; 54 (1): 69 - 75.", "57. Norsham Y, Shariff F, Norhayati A, Nordin M, Lim BL. Pre-logging survey of mammal fauna at Sungai Weng sub-catchment, Ulu Muda Forest Reserve Forest Reserve, Kedah. Journal of Wildlife and Parks. 1999; 17: 28 - 43.", "11. Kingston T, Lim BL, Akbar Z. Bats of Krau wildlife reserve. Penerbit Universiti Kebangsaan Malaysia; 2006.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}
Reliability assessment of a 0.35 μm silicided polysilicon fuse memory cell
Creators: name: Patrick Browne, John
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 40
subject: Engineering

description: Polysilicon fuses are utilised as one time programmable memory cells in submicron semiconductor circuits. Robust design and qualification strategies for the implementation of polysilicon fuse memory cells are necessary to ensure the long term reliability and stability of these memory cells embedded in high precision mixed signal semiconductor products. Analog Devices Inc, a world leader in the design and fabrication of mixed signal semiconductor products utilises a variety of one time programmable memory technologies across its product ranges. These memory cells are used for storing calibration trim factors in precision mixed signal circuits, therefore the long term reliability of the memory is critical to the continued reliable operation of the device in which they are incorporated. In this work existing implementations of polysilicon fuse memory cells on a 0.35 μm BiCMOS semiconductor process are assessed for their long term reliability. The post programmed microstructure of the polysilicon fuse memory cells are analysed using transmission electron microscope techniques. From this analysis a theory for the physics of the programming process is derived. Implementations of the same polysilicon fuse memory cell fabricated on a different yet parametrically similar 0.35 μm BiCMOS processes are also analysed. Optimal programming conditions are determined by experimental means and the long term reliability is assessed using qualification testing strategies derived from a combination of a risk analysis of the potential fuse failure mechanisms and industry standards derived qualification strategies.It is shown that the optimisation of the programming conditions contribute to the long term intrinsic reliability of the fuse memory cell. A complete understanding of the physics of the fuse programming process is necessary in order to properly optimise the programming conditions. The empirical data gathered through experimentation is validated using a mathematical model of the assumed physics of the programming mechanism. The mathematical model was generated in conjunction with the author and the Mathematics Applications Consortium for Science and Industry (MACSI) at the University of Limerick. The fuse programming mechanism in this thesis more accurately fits the observed post programmed fuse characteristics than that which is presented in the literature.The long term reliability of the fuse structure is validated with 3 years of accumulated reliability testing data.This work has contributed to the Analog Devices corporate quality and reliability qualification policy for devices containing polysilicon fuse memory cells.
Additional file 2 of Identifying performance factors of long-term care facilities in the context of the COVID-19 pandemic: a scoping review protocol
Creators: name: Létourneau, Josiane
name: Bélanger, Emilie
name: Sia, Drissa
name: Beogo, Idrissa
name: Robins, Stephanie
name: Kruglova, Katya
name: Jubinville, Maripier
name: Tchouaket, Eric Nguemeleu
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 2: PRISMA-ScR.
Gaussian states under coarse-grained continuous variable measurements
Creators: name: Park, Jiyong
name: Ji, Se-Wan
name: Lee, Jaehak
name: Nha, Hyunchul
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum-to-classical transition of a quantum state is a topic of great interest in fundamental and practical aspects. A coarse-graining in quantum measurement has recently been suggested as its possible account in addition to the usual decoherence model. We here investigate the reconstruction of a Gaussian state (single mode and two modes) by coarse-grained homodyne measurements. To this aim, we employ two methods, the direct reconstruction of the covariance matrix and the maximum likelihood estimation (MLE), respectively, and examine the reconstructed state under each scheme compared to the state interacting with a Gaussian (squeezed thermal) reservoir. We clearly demonstrate that the coarse-graining model, though applied equally to all quadrature amplitudes, is not compatible with the decoherence model by a thermal (phase-insensitive) reservoir. Furthermore, we compare the performance of the direct reconstruction and the MLE methods by investigating the fidelity and the nonclassicality of the reconstructed states and show that the MLE method can generally yield a more reliable reconstruction, particularly without information on a reference frame (phase of input state).
description: published version, 9 pages, 5 figures
Genus one fibrations and vertical Brauer elements on del Pezzo surfaces of degree 4
Creators: name: Mitankin, Vladimir
name: Salgado, Cecília
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14G05 (primary), 11G35, 11D09, 14D10 (secondary)

description: We consider a family of smooth del Pezzo surfaces of degree four and study the geometry and arithmetic of a genus one fibration with two reducible fibres for which a Brauer element is vertical.
description: 17 pages. arXiv admin note: substantial text overlap with arXiv:2002.11539
Learning with linear mixed model for group recommendation systems
Creators: name: Gao, Baode
name: Zhan, Guangpeng
name: Wang, Hanzhang
name: Wang, Yiming
name: Zhu, Shengxin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: G.3

description: Accurate prediction of users' responses to items is one of the main aims of many computational advising applications. Examples include recommending movies, news articles, songs, jobs, clothes, books and so forth. Accurate prediction of inactive users' responses still remains a challenging problem for many applications. In this paper, we explore the linear mixed model in recommendation system. The recommendation process is naturally modelled as the mixed process between objective effects (fixed effects) and subjective effects (random effects). The latent association between the subjective effects and the users' responses can be mined through the restricted maximum likelihood method. It turns out the linear mixed models can collaborate items' attributes and users' characteristics naturally and effectively. While this model cannot produce the most precisely individual level personalized recommendation, it is relative fast and accurate for group (users)/class (items) recommendation. Numerical examples on GroupLens benchmark problems are presented to show the effectiveness of this method.
description: 5 pages, 9 figures, published
Mass segregation in the outer halo globular cluster Palomar 14
Creators: name: Frank, Matthias J.
name: Grebel, Eva K.
name: Kuepper, Andreas H. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present evidence for mass segregation in the outer-halo globular cluster Palomar 14, which is intuitively unexpected since its present-day two-body relaxation time significantly exceeds the Hubble time. Based on archival Hubble Space Telescope imaging, we analyze the radial dependence of the stellar mass function in the cluster's inner 39.2 pc in the mass range of 0.53-0.80 M_sun, ranging from the main-sequence turn-off down to a V-band magnitude of 27.1 mag. The mass function at different radii is well approximated by a power law and rises from a shallow slope of 0.6+/-0.2 in the cluster's core to a slope of 1.6+/-0.3 beyond 18.6 pc. This is seemingly in conflict with the finding by Beccari et al. (2011), who interpret the cluster's non-segregated population of (more massive) blue straggler stars, compared to (less massive) red giants and horizontal branch stars, as evidence that the cluster has not experienced dynamical segregation yet. We discuss how both results can be reconciled. Our findings indicate that the cluster was either primordially mass-segregated and/or used to be significantly more compact in the past. For the latter case, we propose tidal shocks as the mechanism driving the cluster's expansion, which would imply that Palomar 14 is on a highly eccentric orbit. Conversely, if the cluster formed already extended and with primordial mass segregation, this could support an accretion origin of the cluster.
description: 14 pages, 8 figures, accepted for publication in MNRAS
Control optimization for parametric hamiltonians by pulse reconstruction
Creators: name: Luchi, Piero
name: Turro, Francesco
name: Amitrano, Valentina
name: Pederiva, Francesco
name: Wu, Xian
name: Wendt, Kyle
name: Dubois, Jonathan L
name: Quaglioni, Sofia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optimal control techniques provide a means to tailor the control pulses required to generate customized quantum gates, which helps to improve the resilience of quantum simulations to gate errors and device noise. However, the significant amount of (classical) computation required to generate customized gates can quickly undermine the effectiveness of this approach, especially when pulse optimization needs to be iterated. We propose a method to reduce the computational time required to generate the control pulse for a Hamiltonian that is parametrically dependent on a time-varying quantity. We use simple interpolation schemes to accurately reconstruct the control pulses from a set of pulses obtained in advance for a discrete set of predetermined parameter values. We obtain a reconstruction with very high fidelity and a significant reduction in computational effort. We report the results of the application of the proposed method to device-level quantum simulations of the unitary (real) time evolution of two interacting neutrons based on superconducting qubits.
On medium-rank Lie primitive and maximal subgroups of exceptional groups of Lie type
Creators: name: Craven, David A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D06, 20E28, 20G41

description: We study embeddings of groups of Lie type $H$ in characteristic $p$ into exceptional algebraic groups $\mathbf G$ of the same characteristic. We exclude the case where $H$ is of type $\mathrm{PSL}_2$. A subgroup of $\mathbf G$ is \emph{Lie primitive} if it is not contained in any proper, positive-dimensional subgroup of $\mathbf G$. With a few possible exceptions, we prove that there are no Lie primitive subgroups $H$ in $\mathbf G$, with the conditions on $H$ and $\mathbf G$ given above. The exceptions are for $H$ one of $\mathrm{PSL}_3(3)$, $\mathrm{PSU}_3(3)$, $\mathrm{PSL}_3(4)$, $\mathrm{PSU}_3(4)$, $\mathrm{PSU}_3(8)$, $\mathrm{PSU}_4(2)$, $\mathrm{PSp}_4(2)'$ and ${}^2\!B_2(8)$, and $\mathbf G$ of type $E_8$. No examples are known of such Lie primitive embeddings. We prove a slightly stronger result, including stability under automorphisms of $\mathbf G$. This has the consequence that, with the same exceptions, any almost simple group with socle $H$, that is maximal inside an almost simple exceptional group of Lie type $F_4$, $E_6$, ${}^2\!E_6$, $E_7$ and $E_8$, is the fixed points under the Frobenius map of a corresponding maximal closed subgroup inside the algebraic group. The proof uses a combination of representation-theoretic, algebraic group-theoretic, and computational means.
description: vi+214pp
Pipistrellus stenopterus
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus stenopterus

description: Pipistrellus stenopterus [Dobson, 1875] Vesperugo stenopterus Dobson, 1875: 470; Sarawak, Borneo, MALAYSIA (Collector unknown; Type unknown) [199]. Pipistrellus stenopterus [52]. Common English name: Narrow-winged Pipistrelle Barcode Index Number: There are no DNA barcodes recorded under this name on BOLD. IUCN status: Least Concern Recorded at: Pahang: Krau Wildlife Reserve [11, 32]; Selangor: Ulu Gombak [52]; Kedah: Ulu Muda Forest Reserve [57]. P. stenopterus has been recorded foraging in open areas and over rivers in forest and rubber plantations, and found roosting in tree hollows and under house roofs with Scotophilus kuhlii [11, 14].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on page 48, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["199. Dobson GE. Descriptions of new or little known species of bats. In Proceedings of the Zoological Society of London; 1875. pp. 470 - 474.", "52. Medway L. The Ulu Gombak Field Studies Centre. Malayan Scientist. 1966; 2: 1 - 6.", "11. Kingston T, Lim BL, Akbar Z. Bats of Krau wildlife reserve. Penerbit Universiti Kebangsaan Malaysia; 2006.", "32. Khan FAA, Vicki J, Solari S, Peter A, Ketol B, Marni W, et al. Using genetics and morphology to examine species diversity of Old World bats: report of a recent collection from Malaysia. Occas Pap Tex Tech Univ Mus. 2008; Number 281.", "57. Norsham Y, Shariff F, Norhayati A, Nordin M, Lim BL. Pre-logging survey of mammal fauna at Sungai Weng sub-catchment, Ulu Muda Forest Reserve Forest Reserve, Kedah. Journal of Wildlife and Parks. 1999; 17: 28 - 43.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}
Additional file 3 of Identifying performance factors of long-term care facilities in the context of the COVID-19 pandemic: a scoping review protocol
Creators: name: Létourneau, Josiane
name: Bélanger, Emilie
name: Sia, Drissa
name: Beogo, Idrissa
name: Robins, Stephanie
name: Kruglova, Katya
name: Jubinville, Maripier
name: Tchouaket, Eric Nguemeleu
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 3: CINAHL.
Motion groupoids and mapping class groupoids
Creators: name: Torzewska, Fiona
name: Martins, João Faria
name: Martin, Paul Purdon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Category Theory (math.CT)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 20F36 Braid groups, Artin groups, 20L05 Groupoids (i.e. small categories in which all morphisms are isomorphisms)

description: Here $\underline{M}$ denotes a pair $(M,A)$ of a manifold and a subset (e.g. $A=\partial M$ or $A=\emptyset$). We construct for each $\underline{M}$ its motion groupoid $\mathrm{Mot}_{\underline{M}}$, whose object set is the power set $ {\mathcal P} M$ of $M$, and whose morphisms are certain equivalence classes of continuous flows of the `ambient space' $M$, that fix $A$, acting on ${\mathcal P} M$. These groupoids generalise the classical definition of a motion group associated to a manifold $M$ and a submanifold $N$, which can be recovered by considering the automorphisms in $\mathrm{Mot}_{\underline{M}}$ of $N\in {\mathcal P} M$. We also construct the mapping class groupoid $\mathrm{MCG}_{\underline{M}}$ associated to a pair $\underline{M}$ with the same object class, whose morphisms are now equivalence classes of homeomorphisms of $M$, that fix $A$. We recover the classical definition of the mapping class group of a pair by taking automorphisms at the appropriate object. For each pair $\underline{M}$ we explicitly construct a functor $\mathsf{F}\colon \mathrm{Mot}_{\underline{M}} \to \mathrm{MCG}_{\underline{M}}$, which is the identity on objects, and prove that this is full and faithful, and hence an isomorphism, if $π_0$ and $π_1$ of the appropriate space of self-homeomorphisms of $M$ are trivial. In particular, we have an isomorphism in the physically important case $\underline{M}=([0,1]^n, \partial [0,1]^n)$, for any $n\in \mathbb{N}$. We show that the congruence relation used in the construction $\mathrm{Mot}_{\underline{M}}$ can be formulated entirely in terms of a level preserving isotopy relation on the trajectories of objects under flows -- worldlines (e.g. monotonic `tangles'). We examine several explicit examples of $\mathrm{Mot}_{\underline{M}}$ and $\mathrm{MCG}_{\underline{M}}$ demonstrating the utility of the constructions.
description: Version accepted for publication in CMP. 75 pages, 14 figures
IoT Device Identification Based on Network Traffic Characteristics
Creators: name: Mainuddin, Md
name: Duan, Zhenhai
name: Dong, Yingfei
name: Salman, Shaeke
name: Taami, Tania
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: IoT device identification plays an important role in monitoring and improving the performance and security of IoT devices. Compared to traditional non-IoT devices, IoT devices provide us with both unique challenges and opportunities in detecting the types of IoT devices. Based on critical insights obtained in our previous work on understanding the network traffic characteristics of IoT devices, in this paper we develop an effective machine-learning based IoT device identification scheme, named iotID. In developing iotID, we extract 70 features of TCP flows from three complementary aspects: remote network servers and port numbers, packet-level traffic characteristics such as packet inter-arrival times, and flow-level traffic characteristics such as flow duration. Different from existing work, we take into account the imbalance nature of network traffic generated by various devices in both the learning and evaluation phases of iotID. Our performance studies based on network traffic collected on a typical smart home environment consisting of both IoT and non-IoT devices show that iotID can achieve a balanced accuracy score of above 99%.
Dynamics of entropy and nonclassicality features of the interaction between a $\diamondsuit$-type four-level atom and a single-mode field in the presence of intensity-dependent coupling and Kerr nonlinearity
Creators: name: Baghshahi, H R
name: Tavassoly, M K
name: Behjat, A
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interaction between a $\diamondsuit$-type four-level atom and a single-mode field in the presence of Kerr medium with intensity-dependent coupling involving multi-photon processes has been studied. Using the generalized (nonlinear) Jaynes-Cummings model, the exact analytical solution of the wave function for the considered system under particular condition, has been obtained when the atom is initially excited to the topmost level and the field is in a coherent state. Some physical properties of the atom-field entangled state such as linear entropy showing the entanglement degree, Mandel parameter, mean photon number and normal squeezing of the resultant state have been calculated. The effects of Kerr medium, detuning and the intensity-dependent coupling on the temporal behavior of the latter mentioned nonclassical properties have been investigated. It is shown that by appropriately choosing the evolved parameters in the interaction process, each of the above nonclassicality features, which are of special interest in quantum optics as well as quantum information processing, can be revealed.
description: To be appeared in Commun. Theor. Phys
Design of active network filters as hysteretic sensors
Creators: name: Mao, Yu
name: Dankowicz, Harry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This work aims to propose and design a class of networks of coupled linear and nonlinear oscillators, in which short bursts of exogenous excitation result in sustained endogenous network activity that returns to a quiescent state only after a characteristic time and along a different path than when originally excited. The desired hysteretic behavior is obtained through the coupling of self-excited oscillations with purposely designed rate laws for slowly-varying nodal parameters, governed only by local interactions in the network. The proposed architecture and the sought dynamics take inspiration from complex biological systems that combine endogenous energy sources with a paradigm for distributed sensing and information processing. In this paper, the network design problem considers arbitrary topologies and investigates the dependence of the desired response on model parameters, as well as on the placement of a single nonlinear node in an otherwise linear network. Perturbation analysis in various asymptotic parameter limits is used to define the proposed internal dynamics. Parameter continuation techniques validate the asymptotic results numerically and demonstrate their robustness over finite ranges of parameter values. Both approaches suggest a nontrivial dependence of the optimal distribution of nonlinearity on the network topology.
Pipistrellus tenuis
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus tenuis

description: Pipistrellus tenuis [Temminck, 1840] Vespertilio tenuis Temminck, 1840: 229; Sumatra, INDONESIA (Collector unknown; Type unknown) [82]. Pipistrellus tenuis [8]. Common English name: Least Pipistrelle Barcode Index Number: DNA barcodes recorded as P. tenuis are associated with the BIN, BOLD:AAB2554, but there are no DNA barcodes from Peninsular Malaysia. IUCN status: Least Concern Recorded at: Pahang: Unspecified [23]; Pulau Pinang: Unspecied [23]; Selangor: Bukit Kutu Wildlife Reserve [51]; Kedah: Ulu Muda Forest Reserve [57]; Melaka: Sungai Udang Forest Reserve [68]. P. tenuis has been reported roosting in buildings in highly disturbed areas and in hollowed branches and among dead leaves in forests [14].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on pages 48-49, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["82. Temminck CJ. Monographies de mammalogie. Tome 2. Leiden and Paris; 1837 - 1841. 392 pp.", "8. Chasen FN. A handlist of Malaysian mammals (A systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands). Bulletin of the Raffles Museum; 1940.", "23. Medway L. The wild mammals of Malaya. London: Oxford University Press. 1969.", "51. Lim BL, Majid RA, Norsham Y. Studies on the mammal fauna of Bukit Kutu Wildlife reserve, Hulu Selangor. Journal of Wildlife and Parks. 1999; 17: 1 - 6.", "57. Norsham Y, Shariff F, Norhayati A, Nordin M, Lim BL. Pre-logging survey of mammal fauna at Sungai Weng sub-catchment, Ulu Muda Forest Reserve Forest Reserve, Kedah. Journal of Wildlife and Parks. 1999; 17: 28 - 43.", "68. Shahfiz MA, Shahrul-Anuar MA, Nor-Zalipah M, Kaviarasu M, Pan KA, Yusof MO, et al. Surveys of bats at selected sites in Melaka Forest Reserves, Peninsular Malaysia. In: Rahman A, Koh HL, Muhamad A, Yusof WKW, Latiff A, editors. Proceedings for Forestry Department of Peninsular Malaysia, 1 - 2 April 2009 2008. Department of Wildlife and National Parks, Malaysia; 2009. pp. 265 - 270.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}
Detection of Quasi-Periodic Oscillations in the Blazar S4 0954+658 with TESS
Creators: name: Kishore, Shubham
name: Gupta, Alok C.
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the detection of several quasi-periodicities around 0.6--2.5 days in the optical emission of the blazar S4 0954+658. The source was observed by the Transiting Exoplanet Survey Satellite (TESS) in six sectors and it showed these features in all but one of them, with a QPO of 1.52 days apparently present in portions of four of them. We used the generalized Lomb-Scargle periodogram method to search for significant signals and we confirmed them using a weighted wavelet transform for time-frequency domain analyses. We discuss several possible explanations for these rapid quasi-periodic variations and suggest that an origin in the innermost part of the accretion disk is most likely. Within this framework, we provide estimates for the mass of the black hole at the core of this blazar.
description: 20 pages, 6 figures, 4 tables
Beyond Fair Pay: Ethical Implications of NLP Crowdsourcing
Creators: name: Shmueli, Boaz
name: Fell, Jan
name: Ray, Soumya
name: Ku, Lun-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The use of crowdworkers in NLP research is growing rapidly, in tandem with the exponential increase in research production in machine learning and AI. Ethical discussion regarding the use of crowdworkers within the NLP research community is typically confined in scope to issues related to labor conditions such as fair pay. We draw attention to the lack of ethical considerations related to the various tasks performed by workers, including labeling, evaluation, and production. We find that the Final Rule, the common ethical framework used by researchers, did not anticipate the use of online crowdsourcing platforms for data collection, resulting in gaps between the spirit and practice of human-subjects ethics in NLP research. We enumerate common scenarios where crowdworkers performing NLP tasks are at risk of harm. We thus recommend that researchers evaluate these risks by considering the three ethical principles set up by the Belmont Report. We also clarify some common misconceptions regarding the Institutional Review Board (IRB) application. We hope this paper will serve to reopen the discussion within our community regarding the ethical use of crowdworkers.
description: To be published in NAACL-HLT 2021. 12 pages, 1 figure, 3 tables
Phase Separation of Superfluids in the Chain of Four-Component Ultracold Atoms
Creators: name: Barcza, G.
name: Szirmai, E.
name: Sólyom, J.
name: Legeza, Ö.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the competition of various exotic superfluid states in a chain of spin-polarized ultracold fermionic atoms with hyperfine spin $F = 3/2$ and s-wave contact interactions. We show that the ground state is an exotic inhomogeneous mixture in which two distinct superfluid phases --- spin-carrying pairs and singlet quartets --- form alternating domains in an extended region of the parameter space.
Harpyiocephalus esperoptenus subsp. blanfordi (Dobson)
Creators: name: Voon-Ching Lim
name: Rosli Ramli
name: Bhassu, Subha
name: John-James Wilson
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Harpyiocephalus
Harpyiocephalus esperoptenus
Hesperoptenus blanfordi

description: Hesperoptenus blanfordi [Dobson, 1877] Vesperugo blanfordi Dobson, 1877: 312; Tenasserim, east of Moulmein, south Burma = MYANMAR (Limborg, collector; Type unknown) [206]. Hesperoptenus blanfordi [8]. Common English name: Least False-serotine Barcode Index Number: DNA barcodes recorded as H. blanfordi are associated with the BIN, BOLD: AAD 5793, but there are no DNA barcodes from Peninsular Malaysia. IUCN status: Least Concern Recorded at: Pahang: Krau Wildlife Reserve [11, 41], Jengka in Temerloh [140]; Selangor: Ulu Gombak [53, 54]. H. blanfordi has been reported roosting in the entrances of limestone caves in small colonies and recorded foraging in open areas, in gaps created by fallen trees, and above rivers [11, 14].
description: Published as part of Voon-Ching Lim, Rosli Ramli, Subha Bhassu & John-James Wilson, 2017, A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library, pp. 1-65 in PLoS ONE 12 (7) on page 49, DOI: 10.1371/journal.pone.0179555, http://zenodo.org/record/4251352
description: {"references": ["206. Dobson GE. Notes on a collection of Chiroptera from India and Burma. Journal Asiat Soc Bengal. 1877; 46 (2): 310 - 313.", "8. Chasen FN. A handlist of Malaysian mammals (A systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands). Bulletin of the Raffles Museum; 1940.", "11. Kingston T, Lim BL, Akbar Z. Bats of Krau wildlife reserve. Penerbit Universiti Kebangsaan Malaysia; 2006.", "41. Zubaid A. A comparison of the bat fauna between a primary and fragmented secondary forest in Peninsular Malaysia. Mammalia. 1993; 57 (2): 201 - 206.", "140. Hill JE. The Gunong Benom Expedition 1967. 4. New records of Malayan bats, with taxonomic notes and the description of a new Pipistrellus. Bull Br Mus.: Zool. 1972; 23: 21 - 42.", "53. Heller KG, Volleth M. Taxonomic position of \" Pipistrellus societatis \" Hill, 1972 and the karyological characteristics of the genus Eptesicus (Chiroptera: Vespertilionidae). J Zoolog Syst Evol Res. 1984; 22 (1): 65 - 77.", "54. Heller KG, Volleth MA. Fledermause aus Malaysia. 1. Beobachtungen zur Biologie, Morphologie und Taxonomie. Senckenb Biol. 1989; 69 (4 - 6): 243 - 76.", "14. Francis CM. A field guide to the mammals of South-East Asia. New Holland Publishers; 2008."]}