cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quasi 9 and 30-40 days periodicities in the solar differential rotation
Creators: name: Javaraiah, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the daily Mount Wilson Doppler velocity data during 1986-1994 (solar cycle 22), we studied the short-term variations of the order of a few days to a month time scales in the solar differential rotation coefficients A-bar, B-bar and C-bar. We found that a ~9-day periodicity is statistically highly significant in the variations of C-bar at the maximum of solar cycle 22. A similar periodicity is found in the variations of B-bar during the descending phase of the cycle 22 with significant on > 99.9% confidence level. At this cycle maximum, a 30-40 day periodicity is found to be dominant among the variations in B-bar, and this periodicity is found in A-bar during almost throughout the period 1986-1994.The ~9-day periodicity in the variation of the differential rotation approximately matches with the known quasi 10-day periodicity in the total solar irradiance (TSI) variability. Hence, we speculate that there exists a relationship between the differential rotation and TSI variability. We suggest that the 9-10 day periodicities of the differential rotation and TSI have a relationship with the production and the emergence rates of the large-scale solar magnetic flux.
description: 1 table, 5 figures, accepted by Advances in Space Research
Changes in women's health activism as observed in Our Bodies, Ourselves
Creators: name: Dalrymple, Kate
Publisher: name: University of British Columbia
Year: 2019

description: Using data from feminist health advocacy books, I have identified the key changes within women’s health activism and the approach to women’s empowerment over the last 40 years. I conducted content analysis on a total of six chapters selected from two editions of Our Bodies Ourselves (1973, 2011) in order to trace key changes. My findings show three distinct developments in the approaches to activism. The first was a transformation from a critique of the medical system to an acceptance of the capitalist control of medicine. Next, I observed a change in focus from the free choice over whether to use birth control to a moral obligation to use one of many available forms of birth control. Finally, I determined that feminism has abandoned its focus on shared responsibility for health care, and instead focuses on patient-led responsibility. This in turn reflects a shift in empowerment from a focus on broad social change to individualistic solutions. I determined that these changes have been informed by a broad change in feminism to a more neoliberally informed feminism. By identifying sites of potential inequality, these findings can be employed in order to create policy that aims to build a more equitable health care experience for marginalized populations in the United States.
DEP Bulletin: Volume 41 Issue 6
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2017

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
On the non-existence of isochronous tangential centers in Filippov vector fields
Creators: name: Novaes, Douglas D.
name: Silva, Leandro A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34C23, 34A36

description: The isochronicity problem is a classical problem in the qualitative theory of planar vector fields which consists in characterizing whether a center is isochronous or not, that is, if all the trajectories in a neighbourhood of the center have the same period. This problem is usually investigated by means of the so-called period function. In this paper, we are interested in exploring the isochronicity problem for tangential centers of planar Filippov vector fields. By computing the period function for planar Filippov vector fields around tangential centers, we show that such centers are never isochronous.
description: To appear in Proceedings of the American Mathematical Society, 2022
Data and tables of research in high-density apple
Creators: name: Rojina Kafle
name: Shailesh Pandit
Publisher: name: figshare
Year: 2020
Subjects: subject: 70699 Horticultural Production not elsewhere classified
subject: FOS: Agriculture, forestry and fisheries

description: These are data of research on "Comparing High-density plantation and the conventional plantation system in apple: a case from Mustang and Manang districts of Western Nepal".
Characterizing the community structure of complex networks
Creators: name: Lancichinetti, Andrea
name: Kivela, Mikko
name: Saramaki, Jari
name: Fortunato, Santo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Information Retrieval (cs.IR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Community structure is one of the key properties of complex networks and plays a crucial role in their topology and function. While an impressive amount of work has been done on the issue of community detection, very little attention has been so far devoted to the investigation of communities in real networks. We present a systematic empirical analysis of the statistical properties of communities in large information, communication, technological, biological, and social networks. We find that the mesoscopic organization of networks of the same category is remarkably similar. This is reflected in several characteristics of community structure, which can be used as ``fingerprints'' of specific network categories. While community size distributions are always broad, certain categories of networks consist mainly of tree-like communities, while others have denser modules. Average path lengths within communities initially grow logarithmically with community size, but the growth saturates or slows down for communities larger than a characteristic size. This behaviour is related to the presence of hubs within communities, whose roles differ across categories. Also the community embeddedness of nodes, measured in terms of the fraction of links within their communities, has a characteristic distribution for each category. Our findings are verified by the use of two fundamentally different community detection methods.
description: 15 pages, 20 figures, 4 tables
Temperature Dependence of Magnetocrystalline Anisotropy in Itinerant Ferromagnets
Creators: name: Miura, Daisuke
name: Sakuma, Akimasa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically investigated magnetocrystalline anisotropy (MA) at a finite temperature $T$ in ferromagnetic metals. Assuming a Rashba-type ferromagnet with uniaxial MA, we defined the MA constants $K_\mathrm{u}(T)$ derived from several different concepts. Our purpose was to examine the equality between them and to confirm a power law between $K_\mathrm{u}(T)$ and magnetization $M(T)$ in the form of $K_\mathrm{u}(T)/K_\mathrm{u}(0)=[M(T)/M(0)]^α$. We demonstrate that $α$ equals 2 in the itinerant-electron limit and increases with the localized feature of electrons passing through $α=3$, predicted for the single-ion MA in spin models.
Dynamics and plasma properties of an X-ray jet from SUMER, EIS, XRT and EUVI A & B simultaneous observations
Creators: name: Madjarska, M. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Small-scale transient phenomena in the quiet Sun are believed to play an important role in coronal heating and solar wind generation. One of them named as "X-ray jet" is the subject of our study. We indent to investigate the dynamics, evolution and physical properties of this phenomenon. We combine spatially and temporally multi-instrument observations obtained simultaneously with the SUMER spectrometer onboard SoHO, EIS and XRT onboard Hinode, and EUVI/SECCHI onboard the Ahead and Behind STEREO spacecrafts. We derive plasma parameters such as temperatures and densities as well as dynamics by using spectral lines formed in the temperature range from 10 000 K to 12 MK. We also use image difference technique to investigate the evolution of the complex structure of the studied phenomenon. With the available unique combination of data we were able to establish that the formation of a jet-like event is triggered by not one but several energy depositions which are most probably originating from magnetic reconnection. Each energy deposition is followed by the expulsion of pre-existing or new reconnected loops and/or collimated flow along open magnetic field lines. We derived in great detail the dynamic process of X-ray jet formation and evolution. We also found for the first time spectroscopically in the quiet Sun a temperature of 12~MK and density of 4 10^10~cm^-3 in a reconnection site. We raise an issue concerning an uncertainty in using the SUMER Mg X 624.9 A line for coronal diagnostics. We clearly identified two types of up-flow: one collimated up-flow along open magnetic field lines and a plasma cloud formed from the expelled BP loops. We also report a cooler down-flow along closed magnetic field lines. A comparison is made with a model developed by Moreno-Insertis \etal\ (2008).
description: 15 pages, 15 figures
Meson spectra from overlap fermion on domain wall gauge configurations
Creators: name: Mathur, N.
name: Alexandru, A.
name: Chen, Y.
name: Doi, T.
name: Dong, S. J.
name: Draper, T.
name: Gong, M.
name: Lee, F. X.
name: Li, A.
name: Liu, K. -F.
name: Streuer, T.
name: Zhang, J. B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report meson spectra obtained by using valence overlap fermion propagators generated on a background of 2+1 flavor domain wall fermion gauge configurations on 16^3 X 32, 24^3 X 64 and 32^3 X 64 lattices. We use many-to-all correlators with Z3 grid source and low eigenmode substitution which is efficient in reducing errors for the hadron correlators. The preliminary results on meson spectrum, a0 correlators, and charmonium hyperfine splitting for three sea quark masses are reported here.
description: Talk presented at The XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy
SemRob: Towards Semantic Stream Reasoning for Robotic Operating Systems
Creators: name: Nguyen-Duc, Manh
name: Le-Tuan, Anh
name: Hauswirth, Manfred
name: Bowden, David
name: Le-Phuoc, Danh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Stream processing and reasoning is getting considerable attention in various application domains such as IoT, Industry IoT and Smart Cities. In parallel, reasoning and knowledge-based features have attracted research into many areas of robotics, such as robotic mapping, perception and interaction. To this end, the Semantic Stream Reasoning (SSR) framework can unify the representations of symbolic/semantic streams with deep neural networks, to integrate high-dimensional data streams, such as video streams and LiDAR point clouds, with traditional graph or relational stream data. As such, this positioning and system paper will outline our approach to build a platform to facilitate semantic stream reasoning capabilities on a robotic operating system called SemRob.
Noninvertibility as a requirement for creating a semigroup under convex combinations of channels
Creators: name: Jagadish, Vinayak
name: Srikanth, R.
name: Petruccione, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the conditions under which a semigroup is obtained upon convex combinations of channels. In particular, we study the set of Pauli and generalized Pauli channels. We find that mixing only semigroups can never produce a semigroup. Counter-intuitively, we find that for a convex combination to yield a semigroup, most of the input channels have to be noninvertible.
description: 5 pages
Effect of buffer gas on electromagnetically induced transparency in a ladder system using thermal rubidium vapor
Creators: name: Sargsyan, Armen
name: Sarkisyan, David
name: Krohn, Ulrich
name: Keaveney, James
name: Adams, Charles
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the first observation of electromagnetically induced transparency (EIT) in a ladder system in the presence of a buffer gas. In particular we study the 5S1/2 - 5P3/2 - 5D5/2 transition in thermal rubidium vapor with a neon buffer gas at a pressure of 6 Torr. In contrast to the line narrowing effect of buffer gas on Λ-systems we show that the presence of the buffer gas leads to an additional broadening of (32 +/- 5) MHz, which suggests a cross section for Rb(5D5/2)-Ne of σ = (7 +/- 1) x 10-19 m2. However, in the limit where the coupling Rabi frequency is larger than k the collisional dephasing a strong transparency feature can still be observed.
description: 4 pages, 4 figures
Investigation of a Sunspot Complex by Helioseismology
Creators: name: Kosovichev, A. G.
name: Duvall, T. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sunspot regions often form complexes of activity that may live for several solar rotations, and represent a major component of the Sun's magnetic activity. It had been suggested that the close appearance of active regions in space and time might be related to common subsurface roots, or "nests" of activity. EUV images show that the active regions are magnetically connected in the corona, but subsurface connections have not been established. We investigate the subsurface structure and dynamics of a large complex of activity, NOAA 10987-10989, observed during the SOHO/MDI Dynamics run in March-April 2008, which was a part of the Whole Heliospheric Interval (WHI) campaign. The active regions in this complex appeared in a narrow latitudinal range, probably representing a subsurface toroidal flux tube. We use the MDI full-disk Dopplergrams to measure perturbations of travel times of acoustic waves traveling to various depths by using time-distance helioseismology, and obtain sound-speed and flow maps by inversion of the travel times. The subsurface flow maps show an interesting dynamics of decaying active regions with persistent shearing flows, which may be important for driving the flaring and CME activity, observed during the WHI campaign. Our analysis, including the seismic sound-speed inversion results and the distribution of deep-focus travel-time anomalies, gave indications of diverging roots of the magnetic structures, as could be expected from $Ω$-loop structures. However, no clear connection in the depth range of 0-48 Mm among the three active regions in this complex of activity was detected.
description: 4 pages, 5 figures, Proc. IAU Symposium 273, Physics of Sun and Star Spots, Ventura, California 22-26 August 2010
Mass transportation with LQ cost functions
Creators: name: Hindawi, Ahed
name: Rifford, Ludovic
name: Pomet, Jean-Baptiste
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We study the optimal transport problem in the Euclidean space where the cost function is given by the value function associated with a Linear Quadratic minimization problem. Under appropriate assumptions, we generalize Brenier's Theorem proving existence and uniqueness of an optimal transport map. In the controllable case, we show that the optimal transport map has to be the gradient of a convex function up to a linear change of coordinates. We give regularity results and also investigate the non-controllable case.
The cognitive antecedents and behavioural consequences of schadenfreude in an evolutionary framework
Creators: name: Black, Pamela Jean
Publisher: name: University of British Columbia
Year: 2019

description: Schadenfreude is the subjective emotional experience of malicious pleasure that follows from observing another person suffer a misfortune (Heider, 1958). This positive affective reaction is universal, experienced across the lifespan and across cultures. To date, research in this area has focused primarily on the cognitive appraisals that precede this emotion, highlighting the important role of upward social comparison prior to the ensuing experience of schadenfreude. Less focus has been placed on the remaining components of the schadenfreude response, such as the behavioural consequences, leaving much to be learned about this affective state. Using evolutionary theory as an organizing framework, the present three-study dissertation further explored the influence of social comparison on schadenfreude and tested several novel questions related to the impact of the nature of the misfortune, the experience of observing repeated misfortunes, and the ultimate effect of malicious pleasure on subsequent behaviour. Across the three studies, upward, rather than downward, social comparison reliably predicted feelings of pleasure for a target following a misfortune. There also was preliminary evidence that schadenfreude, in the context of an upward social comparison, dissipates following the observation of a single misfortune. Interestingly, relative to previous research, which has typically manipulated minor misfortunes, the present dissertation depicted major misfortunes, and participants responded with less schadenfreude. Finally, although social comparison and misfortune type did not directly influence helping behaviour, evidence was found for a relationship between the experience of schadenfreude for a target and a resulting lack of willingness to personally help that individual. Overall, the findings add to our understanding of the cognitive, behavioural, and subjective experience of schadenfreude and novel aspects of this research provide insights and important recommendations for future research on this common emotional state.
Hamming Distance Tolerant Content-Addressable Memory (HD-CAM) for Approximate Matching Applications
Creators: name: Garzón, Esteban
name: Golman, Roman
name: Jahshan, Zuher
name: Hanhan, Robert
name: Vinshtok-Melnik, Natan
name: Lanuzza, Marco
name: Teman, Adam
name: Yavits, Leonid
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: We propose a novel Hamming distance tolerant content-addressable memory (HD-CAM) for energy-efficient in memory approximate matching applications. HD-CAM implements approximate search using matchline charge redistribution rather than its rise or fall time, frequently employed in state of-the-art solutions. HD-CAM was designed in a 65 nm 1.2 V CMOS technology and evaluated through extensive Monte Carlo simulations. Our analysis shows that HD-CAM supports robust operation under significant process variations and changes in the design parameters, enabling a wide range of mismatch threshold (tolerable Hamming distance) levels and pattern lengths. HD-CAM was functionally evaluated for virus DNA classification, which makes HD-CAM suitable for hardware acceleration of genomic surveillance of viral outbreaks such as Covid-19 pandemics.
Witnessing the key early phase of quasar evolution: an obscured AGN pair in the interacting galaxy IRAS 20210+1121
Creators: name: Piconcelli, E.
name: Vignali, C.
name: Bianchi, S.
name: Mathur, S.
name: Fiore, F.
name: Guainazzi, M.
name: Lanzuisi, G.
name: Maiolino, R.
name: Nicastro, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the discovery of an active galactic nucleus (AGN) pair in the interacting galaxy system IRAS 20210+1121 at z = 0.056. An XMM-Newton observation reveals the presence of an obscured (Nh ~ 5 x 10^{23} cm^-2), Seyfert-like (L_{2-10 keV} = 4.7 x 10^{42} erg/s) nucleus in the northern galaxy, which lacks unambiguous optical AGN signatures. Our spectral analysis also provides strong evidence that the IR-luminous southern galaxy hosts a Type 2 quasar embedded in a bright starburst emission. In particular, the X-ray primary continuum from the nucleus appears totally depressed in the XMM-Newton band as expected in case of a Compton-Thick absorber, and only the emission produced by Compton scattering ('reflection') of the continuum from circumnuclear matter is seen. As such, IRAS 20210+1121 seems to provide an excellent opportunity to witness a key, early phase in the quasar evolution predicted by the theoretical models of quasar activation by galaxy collisions.
description: Accepted for publication in The Astrophysical Journal Letters
Online Appendix to the Research Article "Towards a Persuasive Decision Support Interface for the Sustainable Use of Dynamic Electricity Tariffs"
Creators: name: Burcheri, Lorenzo Matthias
name: Fridgen, Gilbert
name: Marxen, Hanna
name: KUMARI, Jyoti
Publisher: name: Zenodo
Year: 2025

description: We created this online appendix as an addendum to the full research paper “Towards a Persuasive Decision Support Interface for the Sustainable Use of Dynamic Electricity Tariffs” at the 20th International Conference on Design Science Research in Information Systems and Technology in Montego Bay, Jamaica in 2025. The information presented in this document is attributed to the full research paper and does not stand alone but complements it.
An Invariant Theory of Spacelike Surfaces in the Four-dimensional Minkowski Space
Creators: name: Ganchev, Georgi
name: Milousheva, Velichka
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We consider spacelike surfaces in the four-dimensional Minkowski space and introduce geometrically an invariant linear map of Weingarten-type in the tangent plane at any point of the surface under consideration. This allows us to introduce principal lines and an invariant moving frame field. Writing derivative formulas of Frenet-type for this frame field, we obtain eight invariant functions. We prove a fundamental theorem of Bonnet-type, stating that these eight invariants under some natural conditions determine the surface up to a motion. We show that the basic geometric classes of spacelike surfaces in the four-dimensional Minkowski space, determined by conditions on their invariants, can be interpreted in terms of the properties of the two geometric figures: the tangent indicatrix, and the normal curvature ellipse. We apply our theory to a class of spacelike general rotational surfaces.
description: 23 pages; to appear in Mediterr. J. Math., Vol. 9 (2012)
Reconstruction-Induced $φ_0$ Josephson Effect in Quantum Spin Hall Constrictions
Creators: name: Vigliotti, Lucia
name: Cavaliere, Fabio
name: Passetti, Giacomo
name: Sassetti, Maura
name: Ziani, Niccolò Traverso
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The simultaneous breaking of time-reversal and inversion symmetry, in connection to superconductivity, leads to transport properties with disrupting scientific and technological potential. Indeed, the anomalous Josephson effect and the superconducting-diode effect hold promises to enlarge the technological applications of superconductors and nanostructures in general. In this context, the system we theoretically analyze is a Josephson junction (JJ) with coupled reconstructed topological channels as a link; such channels are at the edges of a two-dimensional topological insulator (2DTI). We find a robust $φ_0$ Josephson effect without requiring the presence of external magnetic fields. Our results, which rely on a fully analytical analysis, are substantiated by means of symmetry arguments: Our system breaks both time-reversal symmetry and inversion symmetry. Moreover, the anomalous current increases as a function of temperature. We interpret this surprising temperature dependence by means of simple qualitative arguments based on Fermi's golden rule.
description: 13 pages, 3 figures
Electrochemical 3D Printing of Silver and Nickel Microstructures with FluidFM
Creators: name: van Nisselroy, Cathelijn
name: Shen, Chunjian
name: Zambelli, Tomaso
name: Momotenko, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrochemical 3D printing of conductors with microscale resolution holds a great promise for a wide range of applications, but the choice of suitable metals for these technologies remains limited. Most efforts so far have been focused on deposition of copper, however, other metals are also of interest, especially when tuning of mechanical, electrical, or optical properties is required for a given application. Here we address the issue of a limited materials choice in electrochemical 3D printing by extending the materials library to silver and nickel. Free-standing microscale structures are fabricated in a single step via locally confined electrochemical 3D printing using FluidFM - a microchanneled cantilever nanopipette capable to deliver electrolyte through sub-microscale opening. The 3D printed structures are constructed in a layer-by-layer fashion, which allows complex geometrical shapes such as double rings, helices and pyramids. We report the process performance in terms of printing speed (in the range 7 - 40 nm s-1 for silver and 27 - 42 nm s-1 for nickel) and reveal dense inner structure and chemical purity of the printed features.
Study of higher-order harmonics of complex ac susceptibility in $YB_2C_3O_{7-δ}$ thin films by the mutual inductive method
Creators: name: Perez, Israel
name: Sosa, Victor
name: Gamboa, Fidel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have applied the mutual inductive method to study higher-order harmonics of complex ac susceptibility $χ_n=χ'_n-iχ"_n$ for $$YB_2C_3O_{7-δ}$ thin films as function of the temperature and the applied field. The experimental results were compared with analytical and numerical results obtained from the Ishida-Mazaki model and the solution of the integral equation for the current density, respectively. Both models allow us to reproduced the main experimental features, however, as $n$ increases the numerical model shows notable discrepancies. This failure can be attributed to the current-voltage characteristics. Also this investigation yields the activation energy $U_c$ and the critical current density $J_c$ for two samples both at T=0.
description: 8 pages, 3 figures
Proper Orthogonal Decomposition based algorithm for reconstructing missing displacement measurements by Digital Image Correlation
Creators: name: Psilakis, Ilias
name: Buljak, Vladimir
Publisher: name: Zenodo
Year: 2025

description: Digital Image Correlation (DIC) is an optical, contactless technique used to obtain full-field displacement measurements. However, there are situations during testing when obstacles obscure the camera’s field of view, preventing the capture of all displacements. This paper presents a method based on proper orthogonal decomposition (POD) that exploits the correlation between point displacements to reconstruct the missing data. The developed algorithm was tested in the context of elasto-plastic deformation of specimens, particularly in regions experiencing concentrated plastic deformation. The algorithm demonstrated exceptional performance, achieving an accuracy of well below 10% despite monitoring only 20% of the specimen during the experiment.
Coquaternionic quantum dynamics for two-level systems
Creators: name: Brody, Dorje C.
name: Graefe, Eva-Maria
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dynamical aspects of a spin-1/2 particle in Hermitian coquaternionic quantum theory is investigated. It is shown that the time evolution exhibits three different characteristics, depending on the values of the parameters of the Hamiltonian. When energy eigenvalues are real, the evolution is either isomorphic to that of a complex Hermitian theory on a spherical state space, or else it remains unitary along an open orbit on a hyperbolic state space. When energy eigenvalues form a complex conjugate pair, the orbit of the time evolution closes again even though the state space is hyperbolic.
description: 9 pages, 2 figures
Risk of acute angle closure glaucoma with triptan use in migraine patients : a nested case control study
Creators: name: Sodhi, Mohit
Publisher: name: University of British Columbia
Year: 2019

description: Background: Glaucoma is a chronic, progressive disease that affects over 60 million people worldwide and can lead to either partial or complete vision loss. Similarly, migraines are one of the most prevalent and disabling conditions worldwide. Recent case studies and reports to the Food and Drug Administration have alluded to a link between triptans and an acute angle closure glaucoma (AACG) attack; a true ophthalmic emergency. Given that triptans are a highly prescribed medication, we sought to examine the risk of triptan induced AACG. Methods: We undertook a nested case-control study. We had access to a random sample of 9,053,240 patients from 2006-2016. Cases were identified by their first diagnosis of AACG. A risk-set of controls matched by age, sex, calendar time, and follow-up time were constructed. Our manner of control selection has shown to generate odds ratios that are close approximations of the risk ratios (RR). RRs for a positive control (topiramate) and negative control (ranitidine) were also calculated. Study drug use was defined as those with a prescription within 7 (current), 14 (recent), and 30 days (past) and any use of the drug within 1 year (0-365 days) prior to the index date. Results: There were 1,307 cases and 13,070 controls. The adjusted RR for those with any use of triptans was 1.09 (95%CI: 0.56-1.82). The adjusted RR for current, recent, and past use for triptans was 1.37 (95% CI 0.31-6.09), 1.16 (95% CI 0.35-3.92), and 1.19 (95% CI 0.50-2.81) respectively. The adjusted RR for current, recent, past use, and any use for topiramate was 4.44 (95% CI 0.80-24.64), 12.86 (95% CI 5.10-32.42), 6.52 (95% CI 3.34-12.71), and 3.77 (95% CI 2.29-6.20) respectively. The adjusted RR for current, recent, past use, and any use for ranitidine was 0.66 (95% CI 0.08-5.24), 0.39 (95% CI 0.05-2.91), 0.18 (95% CI 0.02-1.28), and 0.79 (95% CI 0.43-1.44) respectively. Conclusion: Although a significantly increased risk was not found for triptan induced AACG, we cannot exclude the existence of this risk due to presence of wide confidence intervals. Therefore, alerting patients on the risk of AACG with triptan use is not currently indicated.
Deception Detection with Feature-Augmentation by soft Domain Transfer
Creators: name: Shahriar, Sadat
name: Mukherjee, Arjun
name: Gnawali, Omprakash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this era of information explosion, deceivers use different domains or mediums of information to exploit the users, such as News, Emails, and Tweets. Although numerous research has been done to detect deception in all these domains, information shortage in a new event necessitates these domains to associate with each other to battle deception. To form this association, we propose a feature augmentation method by harnessing the intermediate layer representation of neural models. Our approaches provide an improvement over the self-domain baseline models by up to 6.60%. We find Tweets to be the most helpful information provider for Fake News and Phishing Email detection, whereas News helps most in Tweet Rumor detection. Our analysis provides a useful insight for domain knowledge transfer which can help build a stronger deception detection system than the existing literature.
Scalings of scale-by-scale turbulence energy in non-homogeneous turbulence
Creators: name: Chen, Jiangang
name: Vassilicos, John Christos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A theory of non-homogeneous turbulence is developed and is applied to boundary-free shear flows. The theory introduces assumptions of inner and outer similarity for the non-homogeneity of two-point statistics and predicts power law scalings of second-order structure functions which have some similarities with but also some differences from Kolmogorov scalings. These scalings arise as a consequence of these assumptions, of the general inter-scale and inter-space energy balance and of an inner-outer equivalence hypothesis for turbulence dissipation. They reduce to usual Kolmogorov scalings in stationary homogeneous turbulence. Comparisons with structure function data from three qualitatively different turbulent wakes provide support for the theory's predictions but also raise new questions for future research.
description: 28 pages, 12 figures
Study of high pT pi0 and direct photon in small system collisions at 200 GeV
Creators: name: Sun, Zhandong
Publisher: name: Zenodo
Year: 2023
Subjects: zs23
phenix
p+al
p+au
d+au
3he+au
π0
photon
direct photon
centrality
raa
nuclear
modification

description: Talk presented at the Zimanyi School and Winter Workshop on Heavy Ion Physics 2023
DEP Bulletin: Volume 41 Issue 7
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2017

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Effect of mass asymmetry on the mass dependence of balance energy
Creators: name: Goyal, Supriya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We demonstrate the role of the mass asymmetry on the balance energy (Ebal) by studying asymmetric reactions throughout the periodic table and over entire colliding geometry. Our results, which are almost independent of the system size and as well as of the colliding geometries indicate a sizeable effect of the asymmetry of the reaction on the balance energy.
description: Journal of Physics - Conference Series - Online end of March (2011)
Inferring the magnetic field vector in the quiet Sun. I. Photon noise and Selection Criteria
Creators: name: Borrero, J. M.
name: Kobel, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the past, spectropolarimetric data from Hinode/SP has been employed to infer the distribution of the magnetic field vector in the quiet Sun. While some authors have found predominantly horizontal magnetic fields, others favor an isotropic distribution. In this paper, we investigate whether it is actually possible to accurately retrieve the magnetic field vector in regions with very low polarization signals (e.g: internetwork), employing the \ion{Fe}{I} line pair at 6300 Å. We first perform inversions of the Stokes vector observed with Hinode/SP in the quiet Sun at disk center in order to confirm the distributions retrieved by other authors. We then carry out several Monte-Carlo simulations with synthetic data where we show that the observed distribution of the magnetic field vector can be explained in terms of purely vertical ($γ=0°$) and weak fields ($\bar{B}<20$ G), that are misinterpreted by the analysis technique (Stokes inversion code) as being horizontal ($γ\approx 90°$) and stronger ($\bar{B} \approx 100$ G), due to the effect of the photon noise. This casts doubts as to whether previous results, presenting the distributions for the magnetic field vector peaking at $γ=90°$ and $\bar{B}=100$ G, are actually correct. We propose that an accurate determination of the magnetic field vector can be achieved by decreasing the photon noise to a point where most of the observed profiles posses Stokes $Q$ or $U$ profiles that are above the noise level. Unfortunately, for noise levels as low as $2.8\times 10^{-4}$ only 30% of the observed region with Hinode/SP have strong enough $Q$ or $U$ signals, implying that the magnetic field vector remains unknown in the rest of the internetwork.
description: 10 pages, 11 figures (5 color), accepted for publication in Astronomy and Astrophysics
Parton Distributions for LHC
Creators: name: Alekhin, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review the current status of the nucleon PDFs determined from global fits with emphasis on the impact of recent experimental data and the remaining theoretical challenges.
description: Contribution to the Proceedings of the 10th International Workshop 'Loops and Legs in Quantum Field Theory'', W\'orlitz, Germany, April 2010
Association Between Physician Propensity to Prescribe Opioids and Medicare Patient Panels’ Mean HCC Risk Scores
Creators: name: Duffy, Carlo
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 10401 Applied Statistics
subject: FOS: Mathematics

description: Physician prescriptions might contribute to the opioid epidemic. We study the relationshipbetween average patient case complexity (mean HCC risk score) and physician opioidprescription propensity. Among 100 physicians at one Minnesota hospital, North et al. (2017)find evidence of a positive, linear relationship. However, using 2016 Medicare Part D data onover one million physicians across the U.S., we find evidence of a relationship that oftenincreases within North et al.’s range of mean HCC scores, but then decreases and levels offamong higher mean HCCs that North et al. do not observe. Overall, we document wide variationin this relationship across the most frequent specialties and by geography. We then introduce anovel methodology for diagnosing each top specialty’s outlier states, whose relationships differnoticeably from the specialty’s baseline model. Using a hypothesis-testing approach based on ahierarchical linear model, we flag outlier states that vary widely by specialty. State-levelevidence suggests that unusual physician propensity transcends one region such as the Rust Belt.Future research should build upon our model by using a more granular geographic level.
Anatomy of High-Performance GEMM with Online Fault Tolerance on GPUs
Creators: name: Wu, Shixun
name: Zhai, Yujia
name: Liu, Jinyang
name: Huang, Jiajun
name: Jian, Zizhe
name: Wong, Bryan M.
name: Chen, Zizhong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: General Matrix Multiplication (GEMM) is a crucial algorithm for various applications such as machine learning and scientific computing, and an efficient GEMM implementation is essential for the performance of these systems. While researchers often strive for faster performance by using large compute platforms, the increased scale of these systems can raise concerns about hardware and software reliability. In this paper, we present a design for a high-performance GEMM with algorithm-based fault tolerance for use on GPUs. We describe fault-tolerant designs for GEMM at the thread, warp, and threadblock levels, and also provide a baseline GEMM implementation that is competitive with or faster than the state-of-the-art, proprietary cuBLAS GEMM. We present a kernel fusion strategy to overlap and mitigate the memory latency due to fault tolerance with the original GEMM computation. To support a wide range of input matrix shapes and reduce development costs, we present a template-based approach for automatic code generation for both fault-tolerant and non-fault-tolerant GEMM implementations. We evaluate our work on NVIDIA Tesla T4 and A100 server GPUs. Experimental results demonstrate that our baseline GEMM presents comparable or superior performance compared to the closed-source cuBLAS. The fault-tolerant GEMM incurs only a minimal overhead (8.89\% on average) compared to cuBLAS even with hundreds of errors injected per minute. For irregularly shaped inputs, the code generator-generated kernels show remarkable speedups of $160\% \sim 183.5\%$ and $148.55\% \sim 165.12\%$ for fault-tolerant and non-fault-tolerant GEMMs, outperforming cuBLAS by up to $41.40\%$.
description: 11 pages, 2023 International Conference on Supercomputing
Sustainability of biodiversity conservation: too expensive for humans or can we find solutions?
Creators: name: Marchini, Silvio
name: Irvine, Katie
name: Robinson, Cathy
name: Preece, Luke
name: Specht, Alison
name: Stall, Shelley
Publisher: name: Zenodo
Year: 2021
Subjects: conservation
people
management
information sharing
solutions

description: Instruments for the conservation of biodiversity are frequently seen as counter productive for human life and prosperity. This session will provide a basis for lively discussion and knowledge-sharing using evidence-based science, the incorporation of indigenous values, and insights from practice to achieve good biodiversity conservation outcomes within global Sustainable Development Goals. Our five speakers offer different perspectives and solutions around the socio-economic factors influencing practical community and government attitudes and actions, the value of indigenous involvement, and the opportunities arising from technological innovation and knowledge-sharing. All speakers have been directly involved with members of their community affected by conservation actions. We ask the following questions to focus our discussion: • does the human community ‘own’ biodiversity conservation enough to make it sustainable in the long-term? What can we learn from each other? • Is the cost of conservation (perceived as) too high and how can we change this? • Are we able to really measure anything effectively (i.e. are the costs and benefits real or just believed) to know how we are going? • How can we better engage the community to invest in conservation action and benefit from it, not just talk about it? • what innovative solutions and new tools are most promising? • can open science and open data initiatives help? A selection of key challenges and solutions will be presented by researchers and practitioners. The speakers offer different perspectives, from that of globally-scoping research scientists and nature conservation agency staff, to an expert in citizen science and data management. The session is facilitated by members of PARSEC (Building New Tools for Data Sharing and Reuse through a Transnational Investigation of the Socioeconomic Impacts of Protected Areas), a Belmont Forum- funded international project with partners from Brazil, France, Japan, the United States of America, and collaborators in the UK and Australia.
description: link to session: https://attend.sri2021.org/meetings/virtual/g8ReYPgH4heqiRcSy
Temperature effects in pulsating superfluid neutron stars
Creators: name: Kantor, E. M.
name: Gusakov, M. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effects of finite stellar temperatures on the oscillations of superfluid neutron stars. The importance of these effects is illustrated with a simple example of a radially pulsating general relativistic star. Two main effects are taken into account: (i) temperature dependence of the entrainment matrix and (ii) the variation of the size of superfluid region with temperature. Four models are considered, which include either one or both of these two effects. Pulsation spectra are calculated for these models, and asymptotes for eigenfrequencies at temperatures close to critical temperature of neutron superfluidity, are derived. It is demonstrated that models that allow for the temperature effect (ii) but disregard the effect (i), yield unrealistic results. Eigenfunctions for the normal- and superfluid-type pulsations are analyzed. It is shown that superfluid pulsation modes practically do not appear at the neutron-star surface and, therefore, can hardly be observed by measuring the modulation of the electromagnetic radiation from the star. The e-folding times for damping of pulsations due to the shear viscosity and nonequilibrium modified Urca processes are calculated and their asymptotes at temperatures close to the neutron critical temperature, are obtained. It is demonstrated that superfluid pulsation modes are damped by 1--3 orders of magnitude faster than normal modes.
description: 17 pages, 7 figures, accepted for publication in Phys. Rev. D
Current noise and Keldysh vertex function of an Anderson impurity in the Fermi liquid regime
Creators: name: Oguri, Akira
name: Teratani, Yoshimichi
name: Tsutsumi, Kazuhiko
name: Sakano, Rui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a complete microscopic Fermi-liquid description for next-to-leading order transport through an Anderson impurity under a finite bias voltage $V$. It is applicable to multilevel quantum dots without particle-hole or time-reversal symmetry, and is constructed based on the nonequilibrium Keldysh formalism, taking into account the current conservation between electrons in the impurity levels and the conduction bands. Specifically, we derive the formula for the current noise generated in the steady flow up to terms of order $(eV)^3$ at zero temperature $T=0$. To this end, we calculate the Keldysh vertex functions $Γ_{σσ';σ'σ}^{ ν_1ν_2;ν_3ν_4} (ω,ω'; ω',ω)$, which depend on branches $ν_1, ν_2, ν_3$ and $ν_4$ of the time-loop contour and on spin degrees of freedom $σ$ and $σ'$, up to linear-order terms with respect to $eV$, $T$, and frequencies $ω$ and $ω'$. The coefficients of these linear-order terms are determined by a set of the parameters, defined with respect to the equilibrium ground state: the phase shift, static susceptibilities, and nonlinear three-body susceptibilities of the impurity electrons. The low-energy expressions of the vertex components are shown to satisfy the Ward identities with the Keldysh Green's functions expanded up to terms of order $ω^2$, $(eV)^2$, and $T^2$. We also find that the imaginary part of the Ward identities can be described in terms of the $eV$-dependent collision integrals for a single-quasiparticle excitation and that for a single quasiparticle-quasihole pair excitation. These collision integrals ensure the current conservation of the next-to-leading order Fermi-liquid transport due to the quasiparticles with a finite damping rate.
description: 43 pages, 10 figures, typos have been corrected