cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pre-collapse Properties of Superluminous Supernovae and Long Gamma-Ray Burst Progenitor Models
Creators: name: Aguilera-Dena, David R.
name: Langer, Norbert
name: Antoniadis, John
name: Müller, Bernhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyze the properties of 42 rapidly rotating, low metallicity, quasi-chemically homogeneously evolving stellar models in the mass range between 4 and 45 $\,\mathrm{M}_\odot$ at the time of core collapse. Such models were proposed as progenitors for both superluminous supernovae (SLSNe) and long duration gamma-ray bursts (lGRBs), and the Type Ic-BL supernovae (SNe) that are associated with them. Our findings suggest that whether these models produce a magnetar driven SLSN explosion or a near-critically rotating black hole (BH) is not a monotonic function of the initial mass. Rather, their explodability varies non-monotonically depending on the late core evolution, once chemical homogeneity is broken. Using different explodability criteria we find that our models have a clear preference to produce SLSNe at lower masses, and lGRBs at higher masses; but find several exceptions, expecting lGRBs to form from stars as low as 10 $\,\mathrm{M}_\odot$, and SLSNe with progenitors as massive as 30 $\,\mathrm{M}_\odot$. In general, our models reproduce the predicted angular momenta, ejecta masses and magnetic field strengths at core collapse inferred for SLSNe and lGRBs, and suggest significant interaction with their circumstellar medium, particularly for explosions with low ejecta mass.
description: Accepted for publication in ApJ. 17 pages, 11 figures, 2 tables
Additional file 6 of Gangrenous mastitis in dromedary camels in UAE caused by Streptococcus agalactiae
Creators: name: Tigani-Asil, El Tigani Ahmed El
name: Abdelwahab, Ghada Elderdiri
name: Jayamohanan Thikkal Veedu Payyan Veedu
name: Abdelmalik Ibrahim Khalafalla
name: Zayed Saud Abdullah Mohamed
name: Ishag, Hassan Zackaria Ali
name: Shah, Asma Abdi Mohamed
name: Alhosani, Mohamed Ali Abdulla
name: Muhairi, Salama Suhail Mohammed Al
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 6: Top Ten BLAST alignment of isolate 6 (strain: CMFUAE, Acc. No. MN267810.1).
Casimir-Polder potentials as entanglement probe
Creators: name: Cirone, Markus. A.
name: Compagno, Giuseppe
name: Palma, G. Massimo
name: Passante, Roberto
name: Persico, Francesco S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have considered the interaction of a pair of spatially separated two-level atoms with the electromagnetic field in its vacuum state and we have analyzed the amount of entanglement induced between the two atoms by the non local field fluctuations. This has allowed us to characterize the quantum nature of the non local correlations of the electromagnetic field vacuum state as well as to link the induced quantum entanglement with Casimir-Polder potentials.
description: Published on Europhysics Letters 78 (2007) 30003
2009 Michigan Upper Peninsula Dairy Business Analysis Summary
Creators: name: Wittenberg, Eric
name: Wolf, Christopher A.
name: Wittenberg, Eric
name: Wolf, Christopher A.
Publisher: name: Unknown
Year: 2010
Subjects: Agribusiness
Agricultural Finance
Crop Production/Industries
Farm Management
Financial Economics
Livestock Production/Industries
Production Economics
Productivity Analysis

description: This report summarizes the financial and production records of 18 dairy farms across the Upper Peninsula (UP) of Michigan. To be included, the farms must have produced at least 50 percent of gross cash farm income from milk and dairy animal sales. The records came from Michigan State University’s TelFarm project and Farm Credit Service system in Michigan. Farm records checked for accuracy. Average values are reported in the summary tables and discussion that follows but readers should note that considerable variation exists in most measures.
Additional file 1 of Health care professionals’ perspectives on barriers to treatment seeking for formal health services among orphan children and adolescents with HIV/AIDS and mental distress in a rural district in central, Uganda
Creators: name: Mugisha, James
name: Kinyanda, Eugene
name: Osafo, Joseph
name: Nalukenge, Winfred
name: Knizek, Birthe Loa
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Chaka study.
Logarithmic Conformal Field Theories and Strings in Changing Backgrounds
Creators: name: Mavromatos, Nick E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: I review a particular class of physical applications of Logarithmic Conformal Field Theory in strings propagating in changing (not necessarily conformal) backgrounds, namely D-brane recoil in flat or time-dependent cosmological backgrounds. The role of recoil logarithmic vertex operators as non-conformal deformations, requiring in some cases Liouville dressing, is pointed out. It is also argued that, although in the case of non-supersymmetric recoil deformations the representation of target time as a Liouville zero mode may lead to non-linear quantum mechanics for stringy defects, such non-linearities disappear (or, at least, are strongly suppressed) after world-sheet supersymmetrization. A possible link is therefore suggested between (world-sheet) supersymmetry and linearity of quantum mechanics in this framework.
description: 108 pages LATEX, Review contributed to I. Kogan Memorial Volume (World Sci. to be published)
Hennings, Emmy: Landesheilige. Zum Werk von Bütler, Josef: Jeanne d/Arc. Verlag Benziger, Einsiedeln. / Hennings, Emmy: Landesheilige. Zum Werk von Bütler, Josef: Jeanne d/Arc. Verlag Benziger, Einsiedeln. (2. Fassung)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Additional file 4 of Gangrenous mastitis in dromedary camels in UAE caused by Streptococcus agalactiae
Creators: name: Tigani-Asil, El Tigani Ahmed El
name: Abdelwahab, Ghada Elderdiri
name: Jayamohanan Thikkal Veedu Payyan Veedu
name: Abdelmalik Ibrahim Khalafalla
name: Zayed Saud Abdullah Mohamed
name: Ishag, Hassan Zackaria Ali
name: Shah, Asma Abdi Mohamed
name: Alhosani, Mohamed Ali Abdulla
name: Muhairi, Salama Suhail Mohammed Al
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 4: Top Ten BLAST alignment of isolate 4 (strain: CMDUAE, Acc. No. MN267808.1).
Mock catalogs for the extragalactic X-ray sky: simulating AGN surveys with Athena and with the AXIS probe
Creators: name: Marchesi, Stefano
name: Gilli, Roberto
name: Lanzuisi, Giorgio
name: Dauser, Thomas
name: Ettori, Stefano
name: Vito, Fabio
name: Cappelluti, Nico
name: Comastri, Andrea
name: Mushotzky, Richard
name: Ptak, Andrew
name: Norman, Colin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a series of new, publicly available mock catalogs of X-ray selected active galactic nuclei (AGNs), non-active galaxies, and clusters of galaxies. They are based on up-to-date observational results on the demographic of extragalactic X-ray sources and their extrapolations.These mocks reach fluxes below 1E-20 erg s-1 cm-2 in the 0.5-2 keV band, i.e., more than an order of magnitude below the predicted limits of future deep fields, and therefore represent an important tool for simulating extragalactic X-ray surveys with both current and future telescopes. We use our mocks to perform a set of end-to-end simulations of X-ray surveys with the forthcoming Athena mission and with the AXIS probe, a sub-arcsecond resolution X-ray mission concept proposed to the Astro 2020 Decadal Survey. We find that these proposed, next generation surveys may transform our knowledge of the deep X-ray Universe. As an example, in a total observing time of 15\,Ms, AXIS would detect ~225,000 AGNs and ~$50,000 non-active galaxies, reaching a flux limit f_0.5-2~5E-19 erg/s/cm2 in the 0.5-2 keV band, with an improvement of over an order of magnitude with respect to surveys with current X-ray facilities. Consequently, 90% of these sources would be detected for the first time in the X-rays. Furthermore, we show that deep and wide X-ray surveys with instruments like AXIS and Athena are expected to detect ~20,000 z>3 AGNs and ~250 sources at redshift z>6, thus opening a new window of knowledge on the evolution of AGNs over cosmic time and putting strong constraints on the predictions of theoretical models of black hole seed accretion in the early universe.
description: 19 pages, 13 figures. Accepted for publication in A&A. Mock catalogs available online at http://cxb.oas.inaf.it/mock.html
Automatic heterogeneous quantization of deep neural networks for low-latency inference on the edge for particle detectors
Creators: name: Coelho, Claudionor N.
name: Kuusela, Aki
name: Li, Shan
name: Zhuang, Hao
name: Aarrestad, Thea
name: Loncar, Vladimir
name: Ngadiuba, Jennifer
name: Pierini, Maurizio
name: Pol, Adrian Alan
name: Summers, Sioni
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Signal Processing (eess.SP)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Although the quest for more accurate solutions is pushing deep learning research towards larger and more complex algorithms, edge devices demand efficient inference and therefore reduction in model size, latency and energy consumption. One technique to limit model size is quantization, which implies using fewer bits to represent weights and biases. Such an approach usually results in a decline in performance. Here, we introduce a method for designing optimally heterogeneously quantized versions of deep neural network models for minimum-energy, high-accuracy, nanosecond inference and fully automated deployment on chip. With a per-layer, per-parameter type automatic quantization procedure, sampling from a wide range of quantizers, model energy consumption and size are minimized while high accuracy is maintained. This is crucial for the event selection procedure in proton-proton collisions at the CERN Large Hadron Collider, where resources are strictly limited and a latency of ${\mathcal O}(1)~μ$s is required. Nanosecond inference and a resource consumption reduced by a factor of 50 when implemented on field-programmable gate array hardware are achieved.
On Non-Elitist Evolutionary Algorithms Optimizing Fitness Functions with a Plateau
Creators: name: Eremeev, Anton V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: We consider the expected runtime of non-elitist evolutionary algorithms (EAs), when they are applied to a family of fitness functions with a plateau of second-best fitness in a Hamming ball of radius r around a unique global optimum. On one hand, using the level-based theorems, we obtain polynomial upper bounds on the expected runtime for some modes of non-elitist EA based on unbiased mutation and the bitwise mutation in particular. On the other hand, we show that the EA with fitness proportionate selection is inefficient if the bitwise mutation is used with the standard settings of mutation probability.
description: 14 pages, accepted for proceedings of Mathematical Optimization Theory and Operations Research (MOTOR 2020). arXiv admin note: text overlap with arXiv:1908.08686
Additional file 3 of Gangrenous mastitis in dromedary camels in UAE caused by Streptococcus agalactiae
Creators: name: Tigani-Asil, El Tigani Ahmed El
name: Abdelwahab, Ghada Elderdiri
name: Jayamohanan Thikkal Veedu Payyan Veedu
name: Abdelmalik Ibrahim Khalafalla
name: Zayed Saud Abdullah Mohamed
name: Ishag, Hassan Zackaria Ali
name: Shah, Asma Abdi Mohamed
name: Alhosani, Mohamed Ali Abdulla
name: Muhairi, Salama Suhail Mohammed Al
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 3: Top Ten BLAST alignment of isolate 3 (strain: CMCUAE, Acc. No. MN267807.1).
Qutrit randomized benchmarking
Creators: name: Morvan, A.
name: Ramasesh, V. V.
name: Blok, M. S.
name: Kreikebaum, J. M.
name: O'Brien, K.
name: Chen, L.
name: Mitchell, B. K.
name: Naik, R. K.
name: Santiago, D. I.
name: Siddiqi, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ternary quantum processors offer significant computational advantages over conventional qubit technologies, leveraging the encoding and processing of quantum information in qutrits (three-level systems). To evaluate and compare the performance of such emerging quantum hardware it is essential to have robust benchmarking methods suitable for a higher-dimensional Hilbert space. We demonstrate extensions of industry standard Randomized Benchmarking (RB) protocols, developed and used extensively for qubits, suitable for ternary quantum logic. Using a superconducting five-qutrit processor, we find a single-qutrit gate infidelity as low as $2.38 \times 10^{-3}$. Through interleaved RB, we find that this qutrit gate error is largely limited by the native (qubit-like) gate fidelity, and employ simultaneous RB to fully characterize cross-talk errors. Finally, we apply cycle benchmarking to a two-qutrit CSUM gate and obtain a two-qutrit process fidelity of $0.82$. Our results demonstrate a RB-based tool to characterize the obtain overall performance of a qutrit processor, and a general approach to diagnose control errors in future qudit hardware.
description: 6 pages (+ 2 pages supplement), 5 figures
Noncommutative Quantum Scattering in a Central Field
Creators: name: Bellucci, Stefano
name: Yeranyan, Armen
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper the problem of noncommutative elastic scattering in a central field is considered. General formulas for the differential cross-section for two cases are obtained. For the case of high energy of an incident wave it is shown that the differential cross-section coincides with that on the commutative space. For the case in which noncommutativity yields only a small correction to the central potential it is shown that the noncommutativity leads to the redistribution of particles along the azimuthal angle, although the whole cross-section coincides with the commutative case.
description: 7 pages, PACS numbers: 02.40.Gh, 11.10.Nx, 13.85.Dz
Additional file 1 of Cerebrospinal fluid penetration of targeted therapeutics in pediatric brain tumor patients
Creators: name: Guntner, Armin Sebastian
name: Peyrl, Andreas
name: Mayr, Lisa
name: Englinger, Bernhard
name: Berger, Walter
name: Slavc, Irene
name: Buchberger, Wolfgang
name: Gojo, Johannes
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 1:Table S1. Supplementary information on clinical parameters and sample collection. Table S2. Sequential therapies of the investigated drugs in the study cohort. Figure S1. Depiction of the used HPLC gradient for sample analysis. Table S3. Overview of the used mass spectrometer parameters. Figure S2. Normalized chromatogram of a standard solution of dasatinib, imatinib, nintedanib, panobinostat, regorafenib, ribociclib, and vorinostat obtained with the developed HPLC-QqQ MS method. Table S4. Overview of the corresponding method performance parameters. Figure S3. Depiction of measured CCS values of dasatinib, imatinib, nintedanib, panobinostat, regorafenib, ribociclib, and vorinostat. Figure S4. Depiction of the quantitation results for imatinib CSF samples sorted by patient. Figure S5. Depiction of the quantitation results for vorinostat CSF samples sorted by patient. Figure S6. Depiction of the correlation between imatinib levels and CSF protein amounts. Figure S7. Matched CSF protein concentrations of all investigated CSF samples stratified for drug and individual patients. Figure S8. ABCB1 testing. Table S5. Supplementary description of the color-coding used in the Fig. 4 of the manuscript.
Polymerization dynamics of double-stranded biopolymers: chemical kinetic approach
Creators: name: Stukalin, Evgeny B.
name: Kolomeisky, Anatoly B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The polymerization dynamics of double-stranded polymers, such as actin filaments, is investigated theoretically using simple chemical kinetic models that explicitly take into account some microscopic details of the polymer structure and the lateral interactions between the protofilaments. By considering all possible molecular configurations, the exact analytical expressions for the growth velocity and dispersion for two-stranded polymers are obtained in the case of the growing at only one end, and for the growth from both polymer ends. Exact theoretical calculations are compared with the predictions of approximate multi-layer models that consider only a finite number of the most relevant polymer configurations. Our theoretical approach is applied to analyze the experimental data on the growth and fluctuations dynamics of individual single actin filaments.
description: Submitted to J. Chem. Phys
RulePad: Interactive Authoring of Checkable Design Rules
Creators: name: Mehrpour, Sahar
name: LaToza, Thomas D.
name: Sarvari, Hamed
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Good documentation offers the promise of enabling developers to easily understand design decisions. Unfortunately, in practice, design documents are often rarely updated, becoming inaccurate, incomplete, and untrustworthy. A better solution is to enable developers to write down design rules which are checked against code for consistency. But existing rule checkers require learning specialized query languages or program analysis frameworks, creating a barrier to writing project-specific rules. We introduce two new techniques for authoring design rules: snippet-based authoring and semi-natural-language authoring. In snippet-based authoring, developers specify characteristics of elements to match by writing partial code snippets. In semi-natural language authoring, a textual representation offers a representation for understanding design rules and resolving ambiguities. We implemented these approaches in RulePad. To evaluate RulePad, we conducted a between-subjects study with 14 participants comparing RulePad to the PMD Designer, a utility for writing rules in a popular rule checker. We found that those with RulePad were able to successfully author 13 times more query elements in significantly less time and reported being significantly more willing to use RulePad in their everyday work.
Apollo 11 and Fundamental Science
Creators: name: De Rújula, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: J.2

description: Half a century after a man first set foot on the moon it is interesting to revisit the occasion with a measure of hindsight. From the point of view of basic science the greatest achievement concerned the implementation of the Nordtvedt test, a precise check of Einstein's strong equivalence principle. A particle physicist may bravely interpret the result as a precise measurement of the triple-graviton coupling. Other not so profound experiments were also (unofficially) made in Apollo flights, such as a long-distance test of ESP (yes! extra sensory perception). From a sociopolitical point of view the lesson concerns the feats that can be achieved by a determined and united country... or more than one.
description: 12 pages, 5 figures. Extended version of an article published in Inference
Additional file 2 of Gangrenous mastitis in dromedary camels in UAE caused by Streptococcus agalactiae
Creators: name: Tigani-Asil, El Tigani Ahmed El
name: Abdelwahab, Ghada Elderdiri
name: Jayamohanan Thikkal Veedu Payyan Veedu
name: Abdelmalik Ibrahim Khalafalla
name: Zayed Saud Abdullah Mohamed
name: Ishag, Hassan Zackaria Ali
name: Shah, Asma Abdi Mohamed
name: Alhosani, Mohamed Ali Abdulla
name: Muhairi, Salama Suhail Mohammed Al
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 2: Top Ten BLAST alignment of isolate 2 (strain: CMBUAE, Acc. No. MN267806.1).
Demonstrating a Pre-Exascale, Cost-Effective Multi-Cloud Environment for Scientific Computing
Creators: name: Sfiligoi, I.
name: Schultz, D.
name: Riedel, B.
name: Wuerthwein, F.
name: Barnet, S.
name: Brik, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Performance (cs.PF)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Scientific computing needs are growing dramatically with time and are expanding in science domains that were previously not compute intensive. When compute workflows spike well in excess of the capacity of their local compute resource, capacity should be temporarily provisioned from somewhere else to both meet deadlines and to increase scientific output. Public Clouds have become an attractive option due to their ability to be provisioned with minimal advance notice. The available capacity of cost-effective instances is not well understood. This paper presents expanding the IceCube's production HTCondor pool using cost-effective GPU instances in preemptible mode gathered from the three major Cloud providers, namely Amazon Web Services, Microsoft Azure and the Google Cloud Platform. Using this setup, we sustained for a whole workday about 15k GPUs, corresponding to around 170 PFLOP32s, integrating over one EFLOP32 hour worth of science output for a price tag of about $60k. In this paper, we provide the reasoning behind Cloud instance selection, a description of the setup and an analysis of the provisioned resources, as well as a short description of the actual science output of the exercise.
description: 5 pages, 7 figures, to be published in proceedings of PEARC'20. arXiv admin note: text overlap with arXiv:2002.06667
From Supernova to Remnant: Tracking the Evolution of the Oldest Known X-ray Supernovae
Creators: name: Ramakrishnan, Vandana
name: Dwarkadas, Vikram V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Core-collapse supernovae (SNe) expand into a medium created by winds from the pre-SN progenitor. The SN explosion and resulting shock wave(s) heat up the surrounding plasma, giving rise to thermal X-ray emission, which depends on the density of the emitting material. Tracking the variation of the X-ray luminosity over long periods of time thus allows for investigation of the kinematics of the SN shock waves, the structure of the surrounding medium, and the nature of the progenitor star. In this paper X-ray observations of five of the oldest known X-ray supernovae - SN 1970G, SN 1968D, SN 1959D, SN 1957D and SN 1941C - are analyzed, with the aim of reconstructing their light curves over several decades. For those supernovae for which we can extract multi-epoch data, the X-ray luminosity appears to decline with time, although with large error bars. No increase in the X-ray emission from SN 1970G is found at later epochs, contrary to previous reports. All five SNe show X-ray luminosities that are of comparable magnitude. We compare the late-time X-ray luminosities of these SNe to those of supernova remnants (SNRs) in the Galaxy which are a few hundred years old, and find that when the tentative decline is taken into account, the luminosity of the old SNe studied herein could fall below the luminosity of some of the younger SNRs within a few hundred years. However, the X-ray luminosity should begin to increase as the SNe expand in the Sedov phase, thus reaching that of the observed SNRs.
description: Accepted to the Astrophysical Journal. 24 pages, 12 tables, 16 figures
A photometric study of the newly discovered eclipsing cataclysmic variable SDSS J040714.78-064425.1
Creators: name: Ak, T.
name: Retter, A.
name: Liu, A.
name: Esenoglu, H. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results obtained from unfiltered photometric CCD observations of the newly discovered cataclysmic variable SDSS J040714.78-064425.1 made during 7 nights in November 2003. We establish the dwarf nova nature of the object as it was in outburst during our observations. We also confirm the presence of deep eclipses with a period of 0.17017d+/-0.00003 in the optical light curve of the star. In addition, we found periods of 0.166d+/-0.001 and possibly also 5.3d+/-0.7 in the data. The 0.17017d periodicity is consistent within the errors with the proposed orbital period of 0.165d (Szkody et. al. 2003) and 0.1700d (Monard 2004). Using the known relation between the orbital and superhump periods, we interpret the 0.166d and 5.3d periods as the negative superhump and the nodal precession period respectively. SDSS J040714.78-064425.1 is then classified as a negative superhump system with one of the largest orbital periods.
description: 6 pages, 8 figures. accepted by PASA
Opacity Variations in the Ionized Absorption in NGC 3783: A Compact Absorber
Creators: name: Krongold, Y.
name: Nicastro, F.
name: Brickhouse, N. S.
name: Elvis, M.
name: Mathur, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that the Fe (VII-XII) M-shell unresolved transition array (UTA) in the NGC 3783 900 ks Chandra HETGS observation clearly changes in opacity in a timescale of 31 days responding to a factor of 2 change in the ionizing continuum. The opacity variation is observed at a level >10 sigma. There is also evidence for variability in the O VI K edge (at 3 sigma level). The observed changes are consistent with the gas producing these absorption features (the low ionization component) being close to photoionization equilibrium. The gas responsible for the Fe (XVII-XXII) L-shell absorption (the high ionization component), does not seem to be responding as expected in photoionization equilibrium. The observed change in opacity for the UTA implies a density >1E4 cm-3, and so locates the gas within 6 pc of the X-ray source. The scenario in which the gas is composed of a continuous radial range of ionization structures is ruled out, as in such scenario, no opacity variations are expected. Rather, the structure of the absorber is likely composed by heavily clumped gas.
description: 14 pages, 2 figures, 1 table. Accepted for publication in ApJ
Holographic Complexity and Thermodynamic Volume
Creators: name: Balushi, Abdulrahim Al
name: Hennigar, Robie A.
name: Kunduri, Hari K.
name: Mann, Robert B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the holographic complexity conjectures for rotating black holes, uncovering a relationship between the complexity of formation and the thermodynamic volume of the black hole. We suggest that it is the thermodynamic volume and not the entropy that controls the complexity of formation of large black holes in both the Complexity Equals Action and Complexity Equals Volume proposals in general. Our proposal reduces to known results involving the entropy in settings where the thermodynamic volume and entropy are not independent, but has broader scope. Assuming a conjectured inequality is obeyed by the thermodynamic volume, we establish that the complexity of formation is bounded from below by the entropy for large black holes.
description: 7 pages, 3 figures
title: Методические указания по подготовке и оформлению курсовых проектов по дисциплине Проектирование информационных систем
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2013

description: В методических указаниях рассматриваются требования к структуре, содержанию и оформлению курсовых проектов по дисциплине «Проектирование информационных систем», а также порядок их выполнения и защиты. Методические указания предназначены для руководителей курсовых проектов и студентов факультета информационных технологий МТУСИ очной формы обучения, обучающихся по специальности 230201 – информационные системы и технологии.
Type I error rates of the DIF MIMIC approach using Joreskog’s covariance matrix with ML and WLS estimation
Creators: name: Gelin, Michaela Nicole
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation presents new research that examines the Type I error rate of a structural equation modeling (SEM) approach for investigating differential item functioning (DIF) in short scales. Specifically Muthen's S EM model for DIF is examined using a new estimation method (Joreskog, 2002). In general, this method conditions on the latent variable while simultaneously testing the effect of the grouping variable over-and-above the underlying latent variable of interest. Thus, it is a multiple-indicators, multiple-causes (MIMIC) model for DIF. The Type I error rates of this DIF MIMIC approach are explored using data that are reflective of short scales with ordinal item response formats typically found in the social and behavioral sciences. The variables included in this Monte Carlo simulation are 7 sample size combinations (3 equal and 4 unequal group combinations), 2 item response distributions (symmetric and positively skewed), 2 scale lengths (10 and 20 items per scale), and 2 estimation methods (maximum likelihood and weighted leastsquares). The results indicate that the Type I error rates for the DIF MIMIC model are inflated for both estimation methods under all of the design conditions. These results are discussed in the context of validity including the implications of inflated Type I error rates for items identified as displaying DIF.
A Link between Prompt Optical and Prompt Gamma-Ray Emission in Gamma-Ray Bursts
Creators: name: Vestrand, W. T.
name: Wozniak, P. R.
name: Wren, J. A.
name: Fenimore, E. E.
name: Sakamoto, T.
name: White, R. R.
name: Casperson, D.
name: Davis, H.
name: Evans, S.
name: Galassi, M.
name: McGowan, K. E.
name: Schier, J. A.
name: Asa, J. W.
name: Barthelmy, S. D.
name: Cummings, J. R.
name: Gehrels, N.
name: Hullinger, D.
name: Krimm, H. A.
name: Markwardt, C. B.
name: McLean, K.
name: Palmer, D.
name: Parsons, A.
name: Tueller, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The prompt optical emission that arrives with gamma-rays from a cosmic gamma-ray burst (GRB) is a signature of the engine powering the burst, the properties of the ultra-relativistic ejecta of the explosion, and the ejecta's interactions with the surroundings. Until now, only GRB 990123 had been detected at optical wavelengths during the burst phase. Its prompt optical emission was variable and uncorrelated with the prompt gamma-ray emission, suggesting that the optical emission was generated by a reverse shock arising from the ejecta's collision with the surrounding material. Here we report prompt optical emission from GRB 041219a. It is variable and correlated with the prompt gamma-rays, indicating a common origin for the optical light and the gamma-rays. Within the context of the standard fireball model of GRBs, we attribute this new optical component to internal shocks driven into the burst ejecta by variations of the inner engine. The correlated optical emission is a direct probe of the jet isolated from the medium. The timing of the uncorrelated optical emission is strongly dependent on the nature of the medium.
description: 9 pages, 4 figures. Note: This paper has been accepted for publication in Nature, but is embargoed for discussion in the popular press until formal publication in Nature. Resubmit - Added table comparing Swift and RAPTOR data
Transverse momentum versus multiplicity fluctuations in high-energy nuclear collisions
Creators: name: Mrowczynski, St.
name: Rybczynski, M.
name: Wlodarczyk, Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We discuss recently measured event-by-event fluctuations of transverse momentum and of multiplicity in relativistic heavy-ion collisions. It is shown that the non-monotonic behavior of the p_T-fluctuations as a function of collision centrality can be fully explained by the observed non-monotonic multiplicity fluctuations. A possible mechanism responsible for the multiplicity fluctuations is also considered.
description: 5 pages, 3 figures, revised & extended, to appear in Phys. Rev. C
Non-forward BFKL Pomeron at next-to-leading order
Creators: name: Fadin, V. S.
name: Fiore, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The kernel of the BFKL equation for non-zero momentum transfer is found at next-to-leading order. It is presented in various forms depending on the regularization of the infrared singularities in "virtual" and "real" parts of the kernel. The infrared safety of the total kernel is demonstrated and a form free from the singularities is suggested.
description: 8 pages
Self-Learning Detector for the Cell-Free Massive MIMO Uplink: The Line-of-Sight Case
Creators: name: Interdonato, Giovanni
name: Frenger, Pål
name: Larsson, Erik G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The precoding in cell-free massive multiple-input multiple-output (MIMO) technology relies on accurate knowledge of channel responses between users (UEs) and access points (APs). Obtaining high-quality channel estimates in turn requires the path losses between pairs of UEs and APs to be known. These path losses may change rapidly especially in line-of-sight environments with moving blocking objects. A difficulty in the estimation of path losses is pilot contamination, that is, simultaneously transmitted pilots from different UEs that may add up destructively or constructively by chance, seriously affecting the estimation quality (and hence the eventual performance). A method for estimation of path losses, along with an accompanying pilot transmission scheme, is proposed that works for both Rayleigh fading and line-of-sight channels and that significantly improves performance over baseline state-of-the-art. The salient feature of the pilot transmission scheme is that pilots are structurally phase-rotated over different coherence blocks (according to a pre-determined function known to all parties), in order to create an effective statistical distribution of the received pilot signal that can be efficiently exploited by the proposed estimation algorithm.
description: Paper accepted for presentation in IEEE SPAWC 2020 - 21st IEEE International Workshop on Signal Processing Advances in Wireless Communications. {\copyright} 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses
Impacts of dark matter on the curvature of the neutron star
Creators: name: Das, H. C.
name: Kumar, Ankit
name: Kumar, Bharat
name: Biswal, S. K.
name: Patra, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The effects of dark matter (DM) on the curvatures of the neutron star (NS) are examined by using the stiff and soft relativistic mean-field equation of states. The curvatures of the NSs are calculated with the variation of baryon density. Also, it is found that the radial variation of the different curvatures significantly affected by the presence of DM inside the NS. The effects of DM are less pronounced on the compactness of the maximum NS mass, but still significant. The NS surface curvature is found to be more remarkable for the massive star. The binding energy of the NSs become positive with the increasing DM momentum and makes the system unstable.
description: 18 pages, 7 figures, 2 tables, minor changes in Table 1 and 2. Published in JCAP
The classical-statistical limit of quantum mechanics
Creators: name: Castagnino, Mario
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The classical-statistical limit of quantum mechanics is studied. It is proved that the limit $\hbar \to 0$ is the good limit for the operators algebra but it si not so for the state compact set. In the last case decoherence must be invoked to obtain the classical-statistical limit.
description: 9 pages
Positiv externality of honey production
Creators: name: Vanyi Arvane, Georgina
name: Csapo, Zsolt
name: Karpati, Laszlo
name: Vanyi Arvane, Georgina
name: Csapo, Zsolt
name: Karpati, Laszlo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Production Economics
subject: Productivity Analysis
subject: honey production
subject: honey bees
subject: pollination
subject: economic values
subject: positive externality

description: Bee-keeping and honey production has a long history in Hungary. Honey is an important and healthy food of people and it can be consumed without any human processing. The honey production has important role, too. Some researchers say that if honey bee will extinct the humanity in the world would also extinct. It is true since plant pollination by honey bees is very important. It is confirmed by researchers’ studies that plant pollination by honey bees has significant positive external impacts on potential yields in orchards. Although the contribution of honey production to the GDP in Hungary is only a few per cent, other benefits play more important role. One of them is the positive external effect – mentioned above – and the other is the contribution to the biodiversity of the nature. This paper focuses on secondary research methods, gathering and evaluating data regarding the positive external impacts of plant pollination by honey bees as well as finding possible solution for the problem that bee-keepers have a lot of costs in connection with carrying honey bees to orchards while farmers “only” benefit from positive externality of the plant pollination of their fields. This is an unsolved question in Hungary and in a lot of countries in the world nowadays.
Welfare Effects of Food Miles Labels
Creators: name: Caputo, Vincenzina
name: Vassilopoulos, Achilleas
name: Nayga, Rodolfo M.
name: Canavari, Maurizio
name: Caputo, Vincenzina
name: Vassilopoulos, Achilleas
name: Nayga, Rodolfo M.
name: Canavari, Maurizio
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: welfare effect
subject: generic food miles labelling programs
subject: choice experiment
subject: Italy.

description: We assessed the consumer welfare effects of two generic food miles labels: carbon dioxide (CO2) emission label and number of miles label. Using data from a choice experiment, our results generally suggest that a mandatory labeling policy for either type of label would have a positive welfare effect on both informed and uninformed consumers. However, a label informing consumers about the number of miles the food product has travelled provides greater positive welfare effects than a label informing consumers about the amount of CO2 emission.
String Theory, Loop Quantum Gravity and Eternalism
Creators: name: Bihan, Baptiste Le
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Eternalism, the view that what we regard locally as being located in the past, the present and the future equally exists, is the best ontological account of temporal existence in line with special and general relativity. However, special and general relativity are not fundamental theories and several research programs aim at finding a more fundamental theory of quantum gravity weaving together all we know from relativistic physics and quantum physics. Interestingly, some of these approaches assert that time is not fundamental. If time is not fundamental, what does it entail for eternalism and the standard debate over existence in time? First, I will argue that the non-fundamentality of time to be found in string theory entails standard eternalism. Second, I will argue that the non-fundamentality of time to be found in loop quantum gravity entails atemporal eternalism, namely a novel position in the spirit of standard eternalism.
Additional file 1 of Gangrenous mastitis in dromedary camels in UAE caused by Streptococcus agalactiae
Creators: name: Tigani-Asil, El Tigani Ahmed El
name: Abdelwahab, Ghada Elderdiri
name: Jayamohanan Thikkal Veedu Payyan Veedu
name: Abdelmalik Ibrahim Khalafalla
name: Zayed Saud Abdullah Mohamed
name: Ishag, Hassan Zackaria Ali
name: Shah, Asma Abdi Mohamed
name: Alhosani, Mohamed Ali Abdulla
name: Muhairi, Salama Suhail Mohammed Al
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Top Ten BLAST alignment of isolate 1 (strain: CMAUAE, Acc. No. MN267805.1).
The Action-project differentiation procedure : extending the method of analysis in action theory to allow for the examination of similarities and differences among sets of cases
Creators: name: Domene, José Francisco
Publisher: name: University of British Columbia
Year: 2010

description: Although between-groups comparisons are a mainstay in quantitative research methods, their legitimacy within qualitative research is more tenuous. In this methodological dissertation, I explore the issue of between-groups comparative analysis within Young, Valach, and colleagues' contextual action theory research framework, in order to extend the existing action-project method of conducting social research to encompass mechanisms for examining similarities and differences between distinct groups of cases. To focus my methods-development work, I ask two specific questions, (a) "Are between-groups comparisons compatible with the assumptions that underlie the action theory paradigm?" and, (b) "What specific procedures could be used within these analyses, to generate findings that go beyond those which are attainable within the existing method?" To address these questions, I first examine the possibilities and problems with conducting between-groups comparative analyses in different forms of social constructionist research, including the action-project method. After establishing that some forms of between-groups comparison are compatible with action theory, I present a novel method for engaging in such analyses, the action-project differentiation procedure, and demonstrate its application to an existing data set. The major findings of this dissertation are: (a) between-groups comparative analyses that retain the full configuration of information from all cases are compatible with this form of qualitative research; and (b) the procedure I have developed is capable of generating useful, trustworthy findings. I conclude with some suggestions for further refinement of the action-differentiation procedure, and a discussion of the broader implications of shifting the previously existing analytical method in this direction.