cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
User-oriented Fairness in Recommendation
Creators: name: Li, Yunqi
name: Chen, Hanxiong
name: Fu, Zuohui
name: Ge, Yingqiang
name: Zhang, Yongfeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: As a highly data-driven application, recommender systems could be affected by data bias, resulting in unfair results for different data groups, which could be a reason that affects the system performance. Therefore, it is important to identify and solve the unfairness issues in recommendation scenarios. In this paper, we address the unfairness problem in recommender systems from the user perspective. We group users into advantaged and disadvantaged groups according to their level of activity, and conduct experiments to show that current recommender systems will behave unfairly between two groups of users. Specifically, the advantaged users (active) who only account for a small proportion in data enjoy much higher recommendation quality than those disadvantaged users (inactive). Such bias can also affect the overall performance since the disadvantaged users are the majority. To solve this problem, we provide a re-ranking approach to mitigate this unfairness problem by adding constraints over evaluation metrics. The experiments we conducted on several real-world datasets with various recommendation algorithms show that our approach can not only improve group fairness of users in recommender systems, but also achieve better overall recommendation performance.
description: Accepted to the 30th Web Conference (WWW 2021)
Gyrinus sayi Aube 1838
Creators: name: Majka, Christopher
name: Kenner, Rex
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Gyrinidae
Gyrinus
Gyrinus sayi

description: Gyrinus sayi Aubé, 1838 Gyrinus sayi was recorded from New Brunswick and Nova Scotia by Oygur and Wolfe (1991) and from all three Maritime Provinces by Roughley (1991) (Fig. 11). It is one of the most common and widely distributed species in the region (Fig. 5). It has been reported from many aquatic habits; Oygur and Wolfe (1991) reported it from both lentic (65%) and lotic (35%) habitats.
description: Published as part of Majka, Christopher & Kenner, Rex, 2009, The Gyrinidae (Coleoptera) of the Maritime Provinces of Canada: new records, distribution, and faunal composition, pp. 355-372 in ZooKeys 22 (22) on page 366, DOI: 10.3897/zookeys.22.216, http://zenodo.org/record/576544
description: {"references": ["Oygur S, Wolfe GW (1991) Classification, distribution and phylogeny of North American (north of Mexico) species of Gyrinus Muller (Coleoptera: Gyrinidae). Bulletin of the American Museum of Natural History 207: 1 - 97.", "Roughley RE (1991) Family Gyrinidae: Whirligig Beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Ottawa, Ontario: Agriculture Canada, publication 1861 / E: pp. 72 - 673. http: // www. canacoll. org / Coleo / Checklist / PDF files / GYRINIDAE. pdf [accessed 29 June 2009]"]}
Strong Lensing by Binary Galaxies Modelled as Isothermal Spheres
Creators: name: Shin, E. M.
name: Evans, N. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the problem of gravitational lensing by binary galaxies, idealized as two isothermal spheres. In a wide binary, each galaxy possesses individual tangential, nearly astroidal, caustics and roundish radial caustics. As the separation of the binary is made smaller, the caustics undergo a sequence of metamorphoses. The first metamorphosis occurs when the tangential caustics merge to form a single six-cusped caustic, lying interior to the radial caustics. At still smaller separations, the six-cusped caustic undergoes the second metamorphosis and splits into a four-cusped caustic and two three-cusped caustics, which shrink to zero size (an elliptic umbilic catastrophe) before they enlarge again and move away from the origin perpendicular to the binary axis. Finally, a third metamorphosis occurs as the three-cusp caustics join the radial caustics, leaving an inner distorted astroid caustic enclosed by two outer caustics. The maximum number of images possible is 7. Classifying the multiple imaging according to critical isochrones, there are only 8 possibilities: 2 three-image cases, 3 five-image cases, and 3 seven-image cases. When the isothermal spheres are singular, the core images vanish into the central singularity. The number of images may then be 1, 2, 3, 4 or 5, depending on the source location, and the separation and masses of the pair of lensing galaxies. The locations of metamorphoses, and the onset of threefold and fivefold multiple imaging, can be worked out analytically in this case.
description: MNRAS, in press
Additional file 4 of The use of food swaps to encourage healthier online food choices: a randomized controlled trial
Creators: name: Jansen, Laura
name: van Kleef, Ellen
name: Van Loo, Ellen J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4. Explanation of calculation Nutri-Score. Description of data: Additional file 4 is a table with the calculation for the NP score and corresponding Nutri-Score label for each product that was used in the survey.
Higher dimensional operators and their effects in (non)supersymmetric models
Creators: name: Ghilencea, D. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that a 4D N=1 softly broken supersymmetric theory with higher derivative operators in the Kahler or the superpotential part of the Lagrangian and with an otherwise arbitrary superpotential, can be re-formulated as a theory without higher derivatives but with additional (ghost) superfields and modified interactions. The importance of the analytical continuation Minkowski-Euclidean space-time for the UV behaviour of such theories is discussed in detail. In particular it is shown that power counting for divergences in Minkowski space-time does not always work in models with higher derivative operators.
description: Based on talk presented at "Supersymmetry 2007"; 11 pages, LaTeX
Solving Einstein Field Equations in Observational Coordinates with Cosmological Data Functions: Spherically Symmetric Universes with Cosmological Constant
Creators: name: Araujo, M. E.
name: Stoeger, W. S.
name: Arcuri, R. C.
name: Bedran, M. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Extending the approach developed by Araújo and Stoeger [1] and improved in Araújo {\it et al} [2], we have shown how to construct dust-filled $Λ\neq 0$ Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) cosmological models from FLRW cosmological data on our past light cone. Apart from being of interest in its own right -- demonstrating how such data fully determines the models -- it is also illustrated in the flat case how the more general spherically symmetric (SS) Einstein field equations can be integrated in observational coordinates with data fit to FLRW forms arrayed on our past light cone, thus showing how such data determines a FLRW universe -- which is not {\it a priori} obvious. It is also shown how to integrate these exact SS equations, in cases where the data are not FLRW, and the space-time is not known to be flat. It is essential for both flat and non-flat cases to have data giving the maximum of the observer area (angular-diameter) distance, and the redshift $z_{max}$ at which that occurs. This enables the determination of the vacuum-energy density $μ_Λ$, which would otherwise remain undetermined.
description: 20 pages
Additional file 5 of The use of food swaps to encourage healthier online food choices: a randomized controlled trial
Creators: name: Jansen, Laura
name: van Kleef, Ellen
name: Van Loo, Ellen J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5. Examples of product choices with a (1) swap offer, (2) Nutri-Score, or (3) descriptive norm message. Description of data: Additional file 5 shows examples of the survey questions that were displayed for the swap offer (Figure A5.1), Nutri-Score labeling (Figure A5.2), and descriptive norm message condition (Figure A5.3).
On Multiple Einstein Rings
Creators: name: Werner, M. C.
name: An, J.
name: Evans, N. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A number of recent surveys for gravitational lenses have found examples of double Einstein rings. Here, we investigate analytically the occurrence of multiple Einstein rings. We prove, under very general assumptions, that at most one Einstein ring can arise from a mass distribution in a single plane lensing a single background source. Two or more Einstein rings can therefore only occur in multi-plane lensing. Surprisingly, we show that it is possible for a single source to produce more than one Einstein ring. If two point masses (or two isothermal spheres) in different planes are aligned with observer and source on the optical axis, we show that there are up to three Einstein rings. We also discuss the image morphologies for these two models if axisymmetry is broken, and give the first instances of magnification invariants in the case of two lens planes.
description: MNRAS, in press (extra figure included)
Inflationary universe in loop quantum cosmology
Creators: name: Zhang, Xin
name: Ling, Yi
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Loop quantum cosmology provides a nice solution of avoiding the big bang singularity through a big bounce mechanism in the high energy region. In loop quantum cosmology an inflationary universe is emergent after the big bounce, no matter what matter component is filled in the universe. A super-inflation phase without phantom matter will appear in a certain way in the initial stage after the bounce; then the universe will undergo a normal inflation stage. We discuss the condition of inflation in detail in this framework. Also, for slow-roll inflation, we expect the imprint from the effects of the loop quantum cosmology should be left in the primordial perturbation power spectrum. However, we show that this imprint is too weak to be observed.
description: 21 pages, 4 figures; accepted for publication in JCAP
Additional file 6 of The use of food swaps to encourage healthier online food choices: a randomized controlled trial
Creators: name: Jansen, Laura
name: van Kleef, Ellen
name: Van Loo, Ellen J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 6. Overview of exposures in each treatment group. Description of data: This additional provides an overview of the exposures in each condition. A table is provided where each condition is separately explained.
Compatible Transformations for a Qudit Decoherence-free/Noiseless Encoding
Creators: name: Bishop, C. Allen
name: Byrd, Mark S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interest in decoherence-free, or noiseless subsystems (DFS/NSs) of quantum systems is both of fundamental and practical interest. Understanding the invariance of a set of states under certain transformations is mutually associated with a better understanding of some fundamental aspects of quantum mechanics as well as the practical utility of invariant subsystems. For example, DFS/NSs are potentially useful for protecting quantum information in quantum cryptography and quantum computing as well as enabling universal computation. Here we discuss transformations which are compatible with a DFS/NS that is composed of d-state systems which protect against collective noise. They are compatible in the sense that they do not take the logical (encoded) states outside of the DFS/NS during the transformation. Furthermore, it is shown that the Hamiltonian evolutions derived here can be used to perform universal quantum computation on a three qudit DFS/NS. Many of the methods used in our derivations are directly applicable to a large variety of DFS/NSs. More generally, we may also state that these transformations are compatible with collective motions.
description: 30 pages, replaced with published version
Big-Bang Nucleosynthesis and Gravitino
Creators: name: Kawasaki, Masahiro
name: Kohri, Kazunori
name: Moroi, Takeo
name: Yotsuyanagi, Akira
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive big-bang nucleosynthesis (BBN) constraints on both unstable and stable gravitino taking account of recent progresses in theoretical study of the BBN processes as well as observations of primordial light-element abundances. In the case of unstable gravitino, we set the upper limit on the reheating temperature assuming that the primordial gravitinos are mainly produced by the scattering processes of thermal particles. For stable gravitino, we consider Bino, stau and sneutrino as the next-to-the-lightest supersymmetric particle and obtain constraints on their properties. Compared with the previous works, we improved the following points: (i) we use the most recent observational data, (ii) for gravitino production, we include contribution of the longitudinal component, and (iii) for the case with unstable long-lived stau, we estimate the bound-state effect of stau accurately by solving the Boltzmann equation.
description: 27 pages, 16 figures
A study of Type B uncertainties associated with the photoelectric effect in low-energy Monte Carlo simulations
Creators: name: Valdes-Cortez, Christian
name: Mansour, Iymad
name: Rivard, Mark J.
name: Ballester, Facundo
name: Mainegra-Hing, Ernesto
name: Thomson, Rowan M.
name: Vijande, Javier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: The goal of this manuscript is to estimate Type B uncertainties in absorbed-dose calculations arising from the different implementations in current state-of-the-art Monte Carlo codes of low-energy photon cross-sections (<200 keV). Monte Carlo simulations are carried out using three codes widely used in the low-energy domain: PENELOPE-2018, EGSnrc, and MCNP. Mass energy-absorption coefficients for water, air, graphite, and their respective ratios; absorbed dose; and photon-fluence spectra are considered. Benchmark simulations using similar cross-sections have been performed. The differences observed between these quantities when different cross-sections are considered are taken to be a good estimator for the corresponding Type B uncertainties. A conservative Type B uncertainty for the absorbed dose (k=2) of 1.2%-1.7% (<50 keV), 0.6%-1.2% (50-100 keV), and 0.3% (100-200 keV) is estimated. The photon-fluence spectrum does not present clinically relevant differences that merit considering additional Type B uncertainties except for energies below 25 keV, where a Type B uncertainty of 0.5% is obtained. Below 30 keV, mass energy-absorption coefficients show Type B uncertainties (k=2) of about 1.5% (water and air), and 2% (graphite), reaching values about 1% (40-50 keV) and 0.5% (50-75 keV). Type B uncertainties for the water-to-graphite ratios are observed for energies below 30 keV, about 0.7% (k=2). In contrast with the intermediate (about 500 keV) or high (about 1 MeV) energy domains, Type B uncertainties due to the different cross-sections implementation cannot be considered subdominant with respect to Type A uncertainties or even to other sources of Type B uncertainties. Therefore, the values reported here should be accommodated within the uncertainty budget in low-energy photon dosimetry studies.
description: To be published in Physics in Medicine and Biology
Scalable and Deterministic Fabrication of Quantum Emitter Arrays from Hexagonal Boron Nitride
Creators: name: Li, Chi
name: Mendelson, Noah
name: Ritika, Ritika
name: Chen, Yong-Liang
name: Xu, Zai-Quan
name: Toth, Milos
name: Aharonovich, Igor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the fabrication of large-scale arrays of single photon emitters (SPEs) in hexagonal boron nitride (hBN). Bottom-up growth of hBN onto nanoscale arrays of dielectric pillars yields corresponding arrays of hBN emitters at the pillar sites. Statistical analysis shows that the pillar diameter is critical for isolating single defects, and diameters of ~250 nm produce a near-unity yield of a single emitter at each pillar site. Our results constitute a promising route towards spatially-controlled generation of hBN SPEs and provide an effective and efficient method to create large scale SPE arrays. The results pave the way to scalability and high throughput fabrication of SPEs for advanced quantum photonic applications.
description: 13 pages, 4 figures
Additional file 7 of The use of food swaps to encourage healthier online food choices: a randomized controlled trial
Creators: name: Jansen, Laura
name: van Kleef, Ellen
name: Van Loo, Ellen J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 7. Characteristics of the sample across conditions. Description of data: Additional file 7 provides a table with the characteristics of the sample for each condition. Variables presented are household composition, grocery shopping frequency separately for off-line, and online grocery shopping, as well as before and during COVID-19, previous label use, familiarity Nutri-Score, health interest, credibility swap and acceptability.
CONSTITUTIONAL BASE FOR UNIFICATION OF TERRITORIAL COMMUNITIES
Creators: name: Pravdiuk, A.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Constitution of Ukraine
territorial community
unification of territorial communities
local selfgovernment

description: The article analyzes the constitutional base for unification of territorial communities. The main approaches to defining the essence of the concept of “territorial community”, “unification of territorial communities” in the modern science of constitutional law are considered. The need to clearly define the constitutional status of the territorial community is emphasized, since it is the territorial community that is a primary subject of local selfgovernment, the main bearer of its functions and powers. It is found that territorial communities cannot exist without an inherent set of functions and powers, including the right to unification of territorial communities. The compliance of the legislation regulating the process of voluntary unification of territorial communities with the constituent constitutional norms is analyzed. The main stages of voluntary unification of territorial communities are considered, in particular, initiation of voluntary unification of territorial communities, formation of a proposal for unification, public discussion of the proposal, preparation and approval of decisions on voluntary unification of territorial communities, formation of the united territorial community and reorganization of local governments. It is proved that the Constitution of Ukraine guarantees the right to unite territorial communities, and the main task of the legislator should be further improvement of the legal framework in order to comply with the constitutional principles of local self-government.
Window For Higgs Boson Mass From Gauge-Higgs Unification
Creators: name: Gogoladze, Ilia
name: Okada, Nobuchika
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider six dimensional gauge models compactified on the orbifold T^2/Z_N (N=2,3,4,6) such that the Standard Model (SM) Higgs doublet arises from the extra-dimensional components of the gauge field. For Λ\leq 10^{19} GeV, where Λdenotes the compactification scale, we obtain 114.4 GeV \leq m_H \leq 164 GeV for the SM Higgs boson mass. We also consider gauge-Higgs-top and gauge-Higgs-bottom Yukawa unification which respectively yield m_H = 131^{+4}_{-5} GeV and m_H = 150^{+2}_{-2} GeV for a top quark pole mass M_t =170.9^{+1.8}_{-1.8} GeV. As a special case we recover the result m_H \leq 132 GeV previously obtained for five dimensional models.
description: 15 pages, 7 figures
Effective field theory approach for the M1 properties of A=2 and 3 nuclei
Creators: name: Song, Young-Ho
name: Lazauskas, Rimantas
name: Park, Tae-Sun
name: Min, Dong-Pil
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The magnetic moments of ${}^2{H}$, ${}^3{He}$ and ${}^3{H}$ as well as the thermal neutron capture rate on the proton are calculated using heavy baryon chiral perturbation theory {\it à la} Weinberg. The M1 operators have been derived up to {N$^3$LO}. The nuclear matrix elements are evaluated with the use of wave functions obtained by carrying out variational Monte Carlo calculations for a realistic nuclear Hamiltonian involving high-precision phenomenological potentials like Argonne Av18 and Urbana IX tri-nucleon interactions. We discuss the potential- and cutoff-dependence of the results.
description: 14 pages, 2figures
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey quasar sample: Testing observational systematics on the Baryon Acoustic Oscillation measurement
Creators: name: Merz, Grant
name: Rezaie, Mehdi
name: Seo, Hee-Jong
name: Neveux, Richard
name: Ross, Ashley J.
name: Beutler, Florian
name: Percival, Will J.
name: Mueller, Eva
name: Gil-Marín, Héctor
name: Rossi, Graziano
name: Dawson, Kyle
name: Brownstein, Joel R.
name: Myers, Adam D.
name: Schneider, Donald P.
name: Chuang, Chia-Hsun
name: Zhao, Cheng
name: de la Macorra, Axel
name: Nitschelm, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Baryon Acoustic Oscillations are considered to be a very robust standard ruler against various systematics. This premise has been tested against observational systematics, but not to the level required for the next generation of galaxy surveys such as the Dark Energy Spectroscopic Instrument (DESI) and Euclid. In this paper, we investigate the effect of observational systematics on the BAO measurement of the final sample of quasars from the extended Baryon Oscillation Spectroscopic Survey Data Release 16 in order to prepare and hone a similar analysis for upcoming surveys. We employ catalogues with various treatments of imaging systematic effects using linear and neural network-based nonlinear approaches and consider how the BAO measurement changes. We also test how the variations to the BAO fitting model respond to the observational systematics. As expected, we confirm that the BAO measurements obtained from the DR16 quasar sample are robust against imaging systematics well within the statistical error, while reporting slightly modified constraints that shift the line-of-sight BAO signal by less than 1.1% . We use realistic simulations with similar redshift and angular distributions as the DR16 sample to conduct statistical tests for validating the pipeline, quantifying the significance of differences, and estimating the expected bias on the BAO scale in future high-precision data sets. Although we find a marginal impact for the eBOSS QSO data, the work presented here is of vital importance for constraining the nature of dark energy with the BAO feature in the new era of big data cosmology with DESI and Euclid.
description: 14 pages and 16 figures, comments are welcome
Spin, orbital ordering and magnetic dynamics of LaVO3: magnetization, heat capacity and neutron scattering studies
Creators: name: Tung, L. D.
name: Ivanov, A.
name: Schefer, J.
name: Lees, M. R.
name: Balakrishnan, G.
name: Paul, D. McK
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report the results of magnetization, heat capacity and neutron scattering studies of LaVO3 single crystals. From the neutron diffraction studies, it was found that the compound is magnetically ordered with a C-type antiferromagnetic spin structure at about 136 K. In the vicinity of the ordering temperature, we also observed hysteresis in the neutron diffraction data measured on cooling and heating which indicates the first order nature of the phase transition. In the antiferromagnetically ordered phase, the inelastic neutron scattering studies reveal the presence of a temperature independent c axis spin-wave gap of about 6 meV which is similar to that previously reported for the sister compound YVO3.
Additional file 1 of Edema-like symptoms are common in ultra-distance cyclists and driven by overdrinking, use of analgesics and female sex – a study of 919 athletes
Creators: name: Gauckler, Philipp
name: Kesenheimer, Jana S.
name: Kronbichler, Andreas
name: Kolbinger, Fiona R.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Supplementary material.
Geometry of Weyl theory for Jacobi matrices with matrix entries
Creators: name: Schulz-Baldes, Hermann
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A Jacobi matrix with matrix entries is a self-adjoint block tridiagonal matrix with invertible blocks on the off-diagonals. The Weyl surface describing the dependence of Green's matrix on the boundary conditions is interpreted as the set of maximally isotropic subspace of a quadratic from given by the Wronskian. Analysis of the possibly degenerate limit quadratic form leads to the limit point/limit surface theory of maximal symmetric extensions for semi-infinite Jacobi matrices with matrix entries with arbitrary deficiency indices. The resolvent of the extensions is explicitly calculated.
Anisotropic response of spin susceptibility in the superconducting state of UTe$_2$ probed with $^{125}$Te-NMR measurement
Creators: name: Nakamine, Genki
name: Kinjo, Katsuki
name: Kitagawa, Shunsaku
name: Ishida, Kenji
name: Tokunaga, Yo
name: Sakai, Hironori
name: Kambe, Shinsaku
name: Nakamura, Ai
name: Shimizu, Yusei
name: Homma, Yoshiya
name: Li, Dexin
name: Honda, Fuminori
name: Aoki, Dai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: To investigate spin susceptibility in a superconducting (SC) state, we measured the $^{125}$Te-nuclear magnetic resonance (NMR) Knight shifts at magnetic fields ($H$) up to 6.5 T along the $b$ and $c$ axes of single-crystal UTe$_2$, a promising candidate for a spin-triplet superconductor. In the SC state, the Knight shifts along the $b$ and $c$ axes ($K_b$ and $K_c$, respectively) decreased slightly and the decrease in $K_b$ was almost constant up to 6.5 T. The reduction in $K_c$ decreased with increasing $H$, and $K_c$ was unchanged through the SC transition temperature at 5.5 T, excluding the possibility of spin-singlet pairing. Our results indicate that spin susceptibilities along the $b$ and $c$ axes slightly decrease in the SC state in low $H$, and the $H$ response of SC spin susceptibility is anisotropic in the $bc$ plane. We discuss the possible $d$-vector state within the spin-triplet scenario and suggest that the dominant $d$-vector component for the case of $H \parallel b$ changes above 13 T, where $T_{\rm c}$ increases with increasing $H$.
description: 7 pages, 7 figures, including supplemental materials, to appear in Phys. Rev. B
Obscured clusters.I. GLIMPSE30 - Young Milky Way Star Cluster Hosting Wolf-Rayet Stars
Creators: name: Kurtev, R.
name: Borissova, J.
name: Georgiev, L.
name: Ortolani, S.
name: Ivanov, V. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Young massive clusters are perfect astrophysical laboratories for study of massive stars. Clusters with Wolf-Rayet (WR) stars are of special importance, since this enables us to study a coeval WR population at a uniform metallicity and known age. GLIMPSE30 (G30) is one of them. The cluster is situated near the Galactic plane (l=298.756deg, b=-0.408deg) and we aimed to determine its physical parameters and to investigate its high-mass stellar content and especially WR stars. Our analysis is based on SOFI/NTT JsHKs imaging and low resolution (R~2000) spectroscopy of the brightest cluster members in the K atmospheric window. For the age determination we applied isochrone fits for MS and Pre-MS stars. We derived stellar parameters of the WR stars candidates using a full nonLTE modeling of the observed spectra. Using a variety of techniques we found that G30 is very young cluster, with age t~4Myr. The cluster is located in Carina spiral arm, it is deeply embedded in dust and suffers reddening of Av~10.5+-1.1mag. The distance to the object is d=7.2+-0.9kpc. The mass of the cluster members down to 2.35Msol is ~1600Msol. Cluster's MF for the mass range of 5.6 to 31.6Msol shows a slope of Gamma=-1.01+-0.03. The total mass of the cluster obtained by this MF down to 1Msol is about 3x10^3Msol. The spectral analysis and the models allow us to conclude that in G30 are at least one Ofpe/WN and two WR stars. The WR stars are of WN6-7 hydrogen rich type with progenitor masses more than 60Msol. G30 is a new member of the exquisite family of young Galactic clusters, hosting WR stars. It is a factor of two to three less massive than some of the youngest super-massive star clusters like Arches, Quintuplet and Central cluster and is their smaller analog.
description: 11 pages, 9 figures, accepted for publication in Astronomy & Astrophysics
Enabling Volatile Caches for Energy Harvesting Systems
Creators: name: Zeng, Jianping
name: Choi, Jongouk
name: Fu, Xinwei
name: Shreepathi, Ajay Paddayuru
name: Lee, Dongyoon
name: Min, Changwoo
name: Jung, Changhee
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Energy harvesting systems have shown their unique benefit of ultra-long operation time without maintenance and are expected to be more prevalent in the era of Internet of Things. However, due to the batteryless nature, they suffer unpredictable frequent power outages. They thus require a lightweight mechanism for crash consistency since saving/restoring checkpoints across the outages can limit forward progress by consuming hard-won energy. For the reason, energy harvesting systems have been designed with a non-volatile memory (NVM) only. The use of a volatile data cache has been assumed to be not viable or at least challenging due to the difficulty to ensure cacheline persistence. In this paper, we propose ReplayCache, a software-only crash consistency scheme that enables commodity energy harvesting systems to exploit a volatile data cache. ReplayCache does not have to ensure the persistence of dirty cachelines or record their logs at run time. Instead, ReplayCache recovery runtime re-executes the potentially unpersisted stores in the wake of power failure to restore the consistent NVM state, from which interrupted program can safely resume. To support store replay during recovery, ReplayCache partitions program into a series of regions in a way that store operand registers remain intact within each region, and checkpoints all registers just before power failure using the crash consistency mechanism of the commodity systems. For performance, ReplayCache enables region-level persistence that allows the stores in a region to be asynchronously persisted until the region ends, exploiting ILP. The evaluation with 23 benchmark applications show that compared to the baseline with no caches, ReplayCache can achieve about 10.72x and 8.5x-8.9x speedup (on geometric mean) for the scenarios without and with power outages, respectively.
description: 13 pages and 19 figures
The Josephson effect throughout the BCS-BEC crossover
Creators: name: Spuntarelli, A.
name: Pieri, P.
name: Strinati, G. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the stationary Josephson effect for neutral fermions across the BCS-BEC crossover, by solving numerically the Bogoliubov-de Gennes equations at zero temperature. The Josephson current is found to be considerably enhanced for all barriers at about unitarity. For vanishing barrier, the Josephson critical current approaches the Landau limiting value which, depending on the coupling, is determined by either pair-breaking or sound-mode excitations. In the coupling range from the BCS limit to unitarity, a procedure is proposed to extract the pairing gap from the Landau limiting current.
description: 4 pages, 3 figures; improved version to appear in Phys. Rev. Lett
Gyrinus ventralis Kirby 1837
Creators: name: Majka, Christopher
name: Kenner, Rex
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Gyrinidae
Gyrinus
Gyrinus ventralis

description: Gyrinus ventralis Kirby, 1837 Gyrinus ventralis was recorded from New Brunswick by Roughley (1991). Morrissette (1979) reported that it prefers fluvial lakes. Oygur and Wolfe (1991) reported it primarily (80%) from lentic habitats. We have not been able to find voucher specimens of this species from New Brunswick in any Canadian collection. Consequently, further research should be conducted to ascertain if this species actually occurs in the province.
description: Published as part of Majka, Christopher & Kenner, Rex, 2009, The Gyrinidae (Coleoptera) of the Maritime Provinces of Canada: new records, distribution, and faunal composition, pp. 355-372 in ZooKeys 22 (22) on page 367, DOI: 10.3897/zookeys.22.216, http://zenodo.org/record/576544
description: {"references": ["Roughley RE (1991) Family Gyrinidae: Whirligig Beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Ottawa, Ontario: Agriculture Canada, publication 1861 / E: pp. 72 - 673. http: // www. canacoll. org / Coleo / Checklist / PDF files / GYRINIDAE. pdf [accessed 29 June 2009]", "Morrissette R (1979) Les coleopteres Gyrinidae du Quebec. Cordulia, Supplement 8: 1 - 43.", "Oygur S, Wolfe GW (1991) Classification, distribution and phylogeny of North American (north of Mexico) species of Gyrinus Muller (Coleoptera: Gyrinidae). Bulletin of the American Museum of Natural History 207: 1 - 97."]}
Additional file 1 of Compound heterozygous c.598_612del and c.1746-20C > G CAPN3 genotype cause autosomal recessive limb-girdle muscular dystrophy-1: a case report
Creators: name: Siavrienė, Evelina
name: Petraitytė, Gunda
name: Burnytė, Birutė
name: Morkūnienė, Aušra
name: Mikštienė, Violeta
name: Rančelis, Tautvydas
name: Utkus, Algirdas
name: Kučinskas, Vaidutis
name: Preikšaitienė, Eglė
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Table 1. The conditions for PCR amplification of the CAPN3 gene in gDNA and cDNA samples.
Caloric Determination of the Upper Critical Fields and Anisotropy of NdFeAsO1-xFx Single Crystals
Creators: name: Welp, U.
name: Xie, R.
name: Koshelev, A. E.
name: Kwok, W. K.
name: Cheng, P.
name: Fang, L.
name: Wen, H. -H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present heat capacity measurements of the upper critical fields of single-crystal NdFeAsO1-xFx. In zero-magnetic field a clear step in the heat capacity is observed at Tc = 47K . In fields applied perpendicular to the FeAs-layers the step broadens significantly whereas for the in-plane orientation the field effects are small. This behavior is reminiscent of the CuO2-high-Tc superconductors and is a manifestation of pronounced fluctuation effects. Using an entropy conserving construction we determine the transition temperatures in applied fields and the upper critical field slopes of dHc2,a = -0.72 T/K and dHc2,ab = -3.1 T/K. Zero-temperature coherence lengths of xiab = 3.7 nm and xic = 0.9 nm and a modest superconducting anisotropy of gamma ~ 4 can be deduced in a single-band model.
description: 15 pages with 4 figures
Radio Emission Signatures in the Crab Pulsar
Creators: name: Hankins, T. H.
name: Eilek, J. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Our high time resolution observations of individual pulses from the Crab pulsar show that both the time and frequency signatures of the interpulse are distinctly different from those of the main pulse. Main pulses can occasionally be resolved into short-lived, relatively narrow-band nanoshots. We believe these nanoshots are produced by soliton collapse in strong plasma turbulence. Interpulses at centimeter wavelengths are very different. Their dynamic spectrum contains regular, microsecond-long emission bands. We have detected these bands, proportionately spaced in frequency, from 4.5 to 10.5 GHz. The bands cannot easily be explained by any current theory of pulsar radio emission; we speculate on possible new models.
description: 26 pages, 10 figures, to appear in ApJ
Additional file 2 of Compound heterozygous c.598_612del and c.1746-20C > G CAPN3 genotype cause autosomal recessive limb-girdle muscular dystrophy-1: a case report
Creators: name: Siavrienė, Evelina
name: Petraitytė, Gunda
name: Burnytė, Birutė
name: Morkūnienė, Aušra
name: Mikštienė, Violeta
name: Rančelis, Tautvydas
name: Utkus, Algirdas
name: Kučinskas, Vaidutis
name: Preikšaitienė, Eglė
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Table 2. The list of genes that are included in the Ion AmpliSeq™ On-Demand panel for targeted sequencing.
A new method to dispatch split particles in Particle-In-Cell codes
Creators: name: Smets, Roch
name: Aunais, Nicolas
name: Ciardi, ANdrea
name: Drouin, Matthieu
name: Campos-Pino, Martin
name: Deegan, Philip
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Particle-In-Cell codes are widely used for plasma physics simulations. It is often the case that particles within a computational cell need to be split to improve the statistics or, in the case of non-uniform meshes, to avoid the development of fictitious self-forces. Existing particle splitting methods are largely empirical and their accuracy in preserving the distribution function has not been evaluated in a quantitative way. Here we present a new method specifically designed for codes using adaptive mesh refinement. Although we point out that an exact, distribution function preserving method does exist, it requires a large number of split particles and its practical use is limited. We derive instead a method that minimizes the cost function representing the distance between the assignment function of the original particle and that of the sum of split particles. Depending on the interpolation degree and the dimension of the problem, we provide tabulated results for the weight and position of the split particles. This strategy represents no overhead in computing time and for a large enough number of split-particles it asymptotically tends to the exact solution.
Moeller's Energy-Momentum Complex for a Spacetime Geometry on a Noncommutative Curved D3-Brane
Creators: name: Radinschi, I.
name: Grammenos, Th.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Moeller's energy-momentum complex is employed in order to determine the energy and momentum distributions for a spacetime described by a "generalized Schwarzschild" geometry in (3+1)-dimensions on a noncommutative curved D3-brane in an effective, open bosonic string theory. The geometry considered is obtained by an effective theory of gravity coupled with a nonlinear electromagnetic field and depends only on the generalized (effective) mass and charge which incorporate corrections of first order in the noncommutativity parameter.
description: 12 pages
Ratios of Norms for Polynomials and Connected n-width Problems
Creators: name: Prokhorov, V. A.
name: Saff, E. B.
name: Yattselev, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 30E10, 41A16

description: Let G be a bounded simply connected domain and E be a regular compact subset of G with connected complement. We investigate the asymptotic behavior of the Kolmogorov k-width, k=k(n), of the set of polynomials of degree at most n having the supremum norm at most 1 on G restricted to E in the space of continuous functions on E.
description: 24 pages
Bars in Cuspy Dark Halos
Creators: name: Dubinski, John
name: Berentzen, Ingo
name: Shlosman, Isaac
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the bar instability in models with an exponential disk and a cuspy NFW-like dark matter (DM) halo inspired by cosmological simulations. Bar evolution is studied as a function of numerical resolution in a sequence of models spanning 10K to 100M DM particles - including a multi-mass model with an effective resolution of 10G. The goal is to find convergence in dynamical behaviour. We characterize the bar growth, the buckling instability, pattern speed decay through resonant transfer of angular momentum, and possible destruction of the DM halo cusp. Overall, most characteristics converge in behaviour in detail for halos containing more than 10M particles. Notably, the formation of the bar does not destroy the density cusp in this case. These higher resolution simulations clearly illustrate the importance of discrete resonances in transporting angular momentum from the bar to the halo.
description: 6 pages, 5 figures, IAU Symposium 254 submission. The animations referenced by the paper can be found at http://www.cita.utoronto.ca/~dubinski/IAU254
Lindström's conjecture on a class of algebraically non-representable matroids
Creators: name: Florez, Rigoberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Gordon introduced a class of matroids $M(n)$, for prime $n\ge 2$, such that $M(n)$ is algebraically representable, but only in characteristic $n$. Lindström proved that $M(n)$ for general $n\ge 2$ is not algebraically representable if $n>2$ is an even number, and he conjectured that if $n$ is a composite number it is not algebraically representable. We introduce a new kind of matroid called {\it harmonic matroids}, of which full algebraic matroids are an example. We prove the conjecture in this more general case.
description: The paper was published in 2006
Multiparty-controlled teleportation of an arbitrary m-qudit state with pure entangled quantum channel
Creators: name: Zhou, Ping
name: Li, Xi-Han
name: Deng, Fu-Guo
name: Zhou, Hong-Yu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a general scheme for multiparty-controlled teleportation of an arbitrary m-qudit ($d$-dimensional quantum system) state by using non-maximally entangled states as the quantum channel. The sender performs m generalized Bell-state measurements on her 2$m$ particles, the controllers take some single-particle measurements with the measuring basis $X_{d}$ and the receiver only need to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if he cooperates with all the controllers. All the parties can use some decoy photons to set up their quantum channel securely, which will forbid some a dishonest party to eavesdrop freely. This scheme is optimal as the probability that the receiver obtains the originally unknown m-qudit state equals to the entanglement of the quantum channel.
description: 8 pages, 0 figures
Graph Convolutional Networks in Feature Space for Image Deblurring and Super-resolution
Creators: name: Xu, Boyan
name: Yin, Hujun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Graph convolutional networks (GCNs) have achieved great success in dealing with data of non-Euclidean structures. Their success directly attributes to fitting graph structures effectively to data such as in social media and knowledge databases. For image processing applications, the use of graph structures and GCNs have not been fully explored. In this paper, we propose a novel encoder-decoder network with added graph convolutions by converting feature maps to vertexes of a pre-generated graph to synthetically construct graph-structured data. By doing this, we inexplicitly apply graph Laplacian regularization to the feature maps, making them more structured. The experiments show that it significantly boosts performance for image restoration tasks, including deblurring and super-resolution. We believe it opens up opportunities for GCN-based approaches in more applications.
description: Accepted by IJCNN 2021 (Oral)