cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observations of M31 and M33 with the Fermi Large Area Telescope: a galactic center excess in Andromeda?
Creators: name: LAT Collaboration
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Fermi LAT has opened the way for comparative studies of cosmic rays (CRs) and high-energy objects in the Milky Way (MW) and in other, external, star-forming galaxies. Using 2 yr of observations with the Fermi LAT, local Group galaxy M31 was detected as a marginally extended gamma-ray source, while only an upper limit (UL) has been derived for the other nearby galaxy M33. We revisited the gamma-ray emission in the direction of M31 and M33 using more than 7 yr of LAT Pass 8 data in the energy range 0.1-100 GeV, presenting detailed morphological and spectral analyses. M33 remains undetected and we computed an UL for it. This revised UL remains consistent with the observed correlation between gamma-ray luminosity and star-formation rate tracers and implies an average CR density in M33 that is at most half of that of the MW. M31 is detected with a significance of nearly 10 sigma and to be extended with 4 sigma. Its spectrum is consistent with a power law. The spatial distribution of the emission is consistent with a uniform disk with a radius of 0.4 deg and no offset from the center of M31, but nonuniform intensity distributions cannot be excluded. The flux from M31 appears confined to the inner regions of the galaxy and does not fill the disk or extend far from it. The gamma-ray signal is not correlated with regions rich in gas or star-formation activity suggesting that the emission is not interstellar in origin, unless the energetic particles radiating in gamma rays do not originate in recent star formation. Alternative and nonexclusive interpretations are that the emission results from a population of millisecond pulsars dispersed in the bulge and disk of M31 by disrupted globular clusters or from the decay or annihilation of dark matter particles, similar to what has been proposed to account for the so-called Galactic Center excess found in Fermi-LAT observations of the MW.
description: 14 pages, 7 figures, 4 tables
Reconstruction of constant slow-roll inflation
Creators: name: Gao, Qing
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By using the relations between the slow-roll parameters and the power spectrum for the single field slow-roll inflation, we derive the scalar spectral tilt $n_s$ and the tensor to scalar ratio $r$ for the constant slow-roll inflation and obtain the constraint on the slow-roll parameter $η$ from the Planck 2015 results. The inflationary potential for the constant slow-roll inflation is then reconstructed in the framework of both general relativity and scalar-tensor theory of gravity, and compared with the recently reconstructed E model potential. In the strong coupling limit, we show that the $η$ attractor is reached.
Adaptive Block Coordinate DIRECT algorithm
Creators: name: Tao, Qinghua
name: Huang, Xiaolin
name: Wang, Shuning
name: Li, Li
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: G.1.6
subject: 90C26

description: DIviding RECTangles (DIRECT) is an efficient and popular method in dealing with bound constrained optimization problems. However, DIRECT suffers from dimension curse, since its computational complexity soars when dimension increases. Besides, DIRECT also converges slowly when the objective function is flat. In this paper, we propose a coordinate DIRECT algorithm, which coincides with the spirits of other coordinate update algorithms. We transform the original problem into a series of sub-problems, where only one or several coordinates are selected to optimize and the rest keeps fixed. For each sub-problem, coordinately dividing the feasible domain enjoys low computational burden. Besides, we develop adaptive schemes to keep the efficiency and flexibility to tackle different functions. Specifically, we use block coordinate update, of which the size could be adaptively selected, and we also employ sequential quadratic programming (SQP) to conduct the local search to efficiently accelerate the convergence even when the objective function is flat. With these techniques, the proposed algorithm achieves promising performance on both efficiency and accuracy in numerical experiments.
Evolução da assistência de enfermagem no contexto da acreditação hospitalar no Brasil: revisão integrativa
Creators: name: VIZZOTTO, DIANEFER
name: Martinez, Maria Regina
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 420399
subject: Health services and systems not elsewhere classified

description: Revisão integrativa com base na Evolução da Assistência de enfermagem no Brasil.
Objetivo:Analisar as evidências disponíveis acerca da evolução da assistência de enfermagem no contexto da acreditação hospitalar no Brasil.Diante dessa premissa se formulou a seguinte questão norteadora: “Quais as evidências disponíveis acerca da evolução da assistência de enfermagem no contexto da acreditação hospitalar no Brasil?”P= Assistência de Enfermagem , I= Acreditação Hospitalar, Co= Hospitais
An optimized interatomic potential for silicon and its application to thermal stability of silicene
Creators: name: Pun, G. P. Purja
name: Mishin, Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An optimized interatomic potential has been constructed for silicon using a modified Tersoff model. The potential reproduces a wide range of properties of Si and improves over existing potentials with respect to point defect structures and energies, surface energies and reconstructions, thermal expansion, melting temperature and other properties. The proposed potential is compared with three other potentials from the literature. The potentials demonstrate reasonable agreement with first-principles binding energies of small Si clusters as well as single-layer and bilayer silicenes. The four potentials are used to evaluate the thermal stability of free-standing silicenes in the form of nano-ribbons, nano-flakes and nano-tubes. While single-layer silicene is mechanically stable at zero Kelvin, it is predicted to become unstable and collapse at room temperature. By contrast, the bilayer silicene demonstrates a larger bending rigidity and remains stable at and even above room temperature. The results suggest that bilayer silicene might exist in a free-standing form at ambient conditions.
description: Submitted for publication in the Physical Review B
Astronomical verification of a stabilized frequency reference transfer system for the Square Kilometre Array
Creators: name: Gozzard, David
name: Schediwy, Sascha
name: Dodson, Richard
name: Rioja, Maria
name: Hill, Mike
name: Lennon, Brett
name: McFee, Jock
name: Mirtschin, Peter
name: Stevens, Jamie
name: Grainge, Keith
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In order to meet its cutting-edge scientific objectives, the Square Kilometre Array (SKA) telescope requires high-precision frequency references to be distributed to each of its antennas. The frequency references are distributed via fiber-optic links and must be actively stabilized to compensate for phase-noise imposed on the signals by environmental perturbations on the links. SKA engineering requirements demand that any proposed frequency reference distribution system be proved in "astronomical verification" tests. We present results of the astronomical verification of a stabilized frequency reference transfer system proposed for SKA-mid. The dual-receiver architecture of the Australia Telescope Compact Array was exploited to subtract the phase-noise of the sky signal from the data, allowing the phase-noise of observations performed using a standard frequency reference, as well as the stabilized frequency reference transfer system transmitting over 77 km of fiber-optic cable, to be directly compared. Results are presented for the fractional frequency stability and phase-drift of the stabilized frequency reference transfer system for celestial calibrator observations at 5 GHz and 25 GHz. These observations plus additional laboratory results for the transferred signal stability over a 166 km metropolitan fiber-optic link are used to show that the stabilized transfer system under test exceeds all SKA phase-stability requirements under a broad range of observing conditions. Furthermore, we have shown that alternative reference dissemination systems that use multiple synthesizers to supply reference signals to sub-sections of an array may limit the imaging capability of the telescope.
description: 12 pages, accepted to The Astronomical Journal
Joseph Wolfgang von Deschwanden (1819-1866) an Ottilie Grossbach (1836-1919), verheiratete von Deschwanden
Creators: name: Deschwanden, Joseph Wolfgang von
Publisher: name: [s.n.]
Year: 1862

description: Brief ohne Ortsangabe, vermutlich aus Bad Weissenburg, datiert mit Freitag, 8. August und in der Fortsetzung Samstag den 9. August
Thermal fluctuations and osmotic stability of lipid vesicles
Creators: name: Wennerström, Håkan
name: Sparr, Emma
name: Stenhammar, Joakim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Biological membranes constantly change their shape in response to external stimuli, and understanding the remodeling and stability of vesicles in heterogeneous environments is therefore of fundamental importance for a range of cellular processes. One crucial question is how vesicles respond to external osmotic stresses, imposed by differences in solute concentrations between the vesicle interior and exterior. Previous analyses of the membrane bending energy have predicted that micron-sized giant unilamellar vesicles (GUVs) should become globally deformed already for nanomolar concentration differences, in contrast to experimental findings that find deformations at much higher osmotic stresses. In this article, we analyze the mechanical stability of a spherical vesicle exposed to an external osmotic pressure in a statistical-mechanical model, including the effect of thermally excited membrane bending modes. We find that the inclusion of thermal fluctuations of the vesicle shape changes renders the vesicle deformation continuous, in contrast to the abrupt transition in the athermal picture. Crucially, however, the predicted critical pressure associated with global vesicle deformation remains the same as when thermal fluctuations are neglected, approximately six orders of magnitude smaller than the typical collapse pressure recently observed experimentally for GUVs. We conclude by discussing possible sources of this persisting dissonance between theory and experiments.
Universal Peregrine soliton structure in nonlinear pulse compression in optical fiber
Creators: name: Tikan, A.
name: Billet, C.
name: El, G.
name: Tovbis, A.
name: Bertola, M.
name: Sylvestre, T.
name: Gustave, F.
name: Randoux, S.
name: Genty, G.
name: Suret, P.
name: Dudley, J. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present experimental evidence of the universal emergence of the Peregrine soliton predicted in the semi-classical (zero-dispersion) limit of the focusing nonlinear Schrödinger equation [Comm. Pure Appl. Math. {\bf 66}, 678 (2012)]. Experiments studying higher-order soliton propagation in optical fiber use an optical sampling oscilloscope and frequency-resolved optical gating to characterise intensity and phase around the first point of soliton compression and the results show that the properties of the compressed pulse and background pedestal can be interpreted in terms of the Peregrine soliton. Experimental and numerical results reveal that the universal mechanism under study is highly robust and can be observed over a broad range of parameters, and experiments are in very good agreement with numerical simulations.
Charmless two-body $B$ meson decays in perturbative QCD factorization approach
Creators: name: Chai, Jian
name: Cheng, Shan
name: Ju, Yao-hui
name: Yan, Da-cheng
name: Lü, Cai-Dian
name: Xiao, Zhen-Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The perturbative QCD (PQCD) approach based on $k_T$ factorization has made a great achievement for the QCD calculation of the hadronic B decays. Regulating the endpoint divergence by the transverse momentum of quarks in the propagators, one can do the perturbation calculation for kinds of diagrams including the annihilation type diagrams. In this paper, we review the current status of PQCD factorization calculation of two-body charmless $B\to PP, PV, VV$ decays up to the next-to-leading order (NLO) QCD corrections. two new power suppressed terms in decaying amplitudes are also taken into account. By using the universal input (non-perturbative) parameters, we collected the branching ratios and ${\bf CP}$ asymmetry parameters for all the charmless two body $B$ decays, calculated in the PQCD approach up to the NLO, including some power suppressed terms in decaying amplitudes. The results are compared with the ones from QCD factorization approach, soft-collinear effective theory approach and the current experimental measurements. For most considered B meson decays, the PQCD results for branching ratios agree well with other approaches and the experimental data. The PQCD predictions for the ${\bf CP}$ asymmetry parameters for many of the decay channels do not agree with other approaches, but have a better agreement with the experimental data. The longstanding $K π$ puzzle about the pattern of the direct CP asymmetries of the penguin-dominated $B \to K π$ decays can be understood after the inclusion of the NLO contributions in PQCD. The NLO corrections and power suppressed terms play an important role in the color suppressed and pure annihilation type $B$ decay modes. These rare decays are more sensitive to different types of corrections, providing opportunity to examine the factorization approach with the more precise experimental measurements.
description: 52 pages, 4 figures, 11 tables
Evaluating Optical Classification for {\em Fermi} Blazar Candidates with a Statistical method using Broadband Spectral Indices
Creators: name: Yi, Ting-Feng
name: Zhang, Jin
name: Lu, Rui-Jing
name: Huang, Rui
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We aim to test if a blazar candidate of uncertain-type (BCU) in the third Fermi active galactic nuclei catalog (3LAC) can be potentially classified as a BL Lac object or a flat spectrum radio quasar (FSRQ) by performing a statistical analysis of its broadband spectral properties. We find that 34% of the radio-selected BCUs (583 BCUs) are BL Lac-like and 20% of them are FSRQ-like, which maybe within 90% level of confidence. Similarly, 77.3% of the X-ray selected BCUs (176 BCUs) are evaluated as BL Lac-like and 6.8% of them may be FSRQ-like sources. And 88.7% of the BL Lac-like BCUs that have synchrotron peak frequencies available are high synchrotron peaked BL Lacs in the X-ray selected BCUs. The percentages are accordingly 62% and 7.3% in the sample of 124 optical-selected BCUs. The high ratio of source numbers of the BL Lac-like to the FSRQ-like BCUs in the X-ray and optically selected BCU samples is due to the selection effect. Examining the consistency between our evaluation and spectroscopic identification case by case with a sample of 78 radio-selected BCUs, it is found that the statistical analysis and its resulting classifications agree with the results of the optical follow-up spectroscopic observations. Our observation campaign for high-|ρ_{s}| BCUs , i.e., |ρ_{s}|>0.8, selected with our method is ongoing.
description: 38 pages, 6 figures, 3 tables, accepted for publication in ApJ
The Evolution of Lyman Alpha Emitter Line Widths from z=5.7 to z=6.6
Creators: name: Songaila, A.
name: Barger, A. J.
name: Cowie, L. L.
name: Hu, E. M.
name: Taylor, A. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent evidence suggests that high-redshift Ly-alpha emitting galaxies (LAEs) with logL(Ly-alpha) > 43.5 erg/s, referred to as ultraluminous LAEs (ULLAEs), may show less evolution than lower-luminosity LAEs in the redshift range z=5.7-6.6. Here we explore the redshift evolution of the velocity widths of the Ly-alpha emission lines in LAEs over this redshift interval. We use new wide-field, narrowband observations from Subaru/Hyper Suprime-Cam to provide a sample of 24 z=6.6 and 12 z=5.7 LAEs with log L(Ly-alpha) > 43 erg/s, all of which have follow-up spectroscopy from Keck/DEIMOS. Combining with archival lower-luminosity data, we find a significant narrowing of the Ly-alpha lines in LAEs at logL(Ly-alpha) < 43.25 erg/s -- somewhat lower than the usual ULLAE definition -- at z = 6.6 relative to those at z = 5.7, but we do not see this in higher-luminosity LAEs. As we move to higher redshifts, the increasing neutrality of the intergalactic medium should increase the scattering of the Ly-alpha lines, making them narrower. The absence of this effect in the higher-luminosity LAEs suggests they may lie in more highly ionized regions, self-shielding from the scattering effects of the intergalactic medium.
description: 11 pages, 8 figures, 3 tables, accepted for publication in ApJ
Boosting spin-orbit torque efficiency in spin-current generator/magnet/oxide superlattices
Creators: name: Zhu, Lijun
name: Li, Jingwei
name: Zhu, Lujun
name: Xie, Xinyue
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Efficient manipulation of magnetic materials is essential for spintronics. In spin-current generator/magnet bilayers, the efficiency of spin-orbit torques per magnetic layer thickness scales inversely with the magnetic layer thickness, leading to considerable power increase in applications with large magnetic layer thickness. Here, we develop a 3D spin-orbit material scheme in which the spin torque efficiency can be remarkably boosted up by stacking [spin-current generator/magnet/oxide]n superlattices, with the oxide layers breaking the inversion symmetry. In contrast, the spin torque diminishes in [spin-current generator/magnet]n superlattices lacking inversion symmetry breaking. These results advances the understanding of spin-orbit torques in magnetic multilayers and establishes spin-current generator/magnet/oxide superlattices as advantageous bricks for development of high energy-efficiency, high-endurance, and high-density spintronic memory and computing.
description: In press at Phys. Rev. Applied
Needed Agricultural Programs
Creators: name: Dankers, W. H.
name: Reid, Margaret G.
name: Cunningham, L. C.
name: Lawson, J. L.
Publisher: name: Unknown
Year: 1944
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Financial Economics
Labor and Human Capital

description: Discussed at the 22nd Annual Agricultural Outlook Conference, Washington, D. C., November 16, 1944.
Toward a Framework for Integrative, FAIR, and Reproducible Management of Data on the Dynamic Balance of Microbial Communities
Creators: name: Gadelha, Luiz
name: Hohmuth, Martin
name: Zulfiqar, Mahnoor
name: Schöne, David
name: Samuel, Sheeba
name: Sorokina, Maria
name: Steinbeck, Christoph
name: König-Ries, Birgitta
Publisher: name: arXiv
Year: 2022
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: The increasing volumes of data produced by high-throughput instruments coupled with advanced computational infrastructures for scientific computing have enabled what is often called a {\em Fourth Paradigm} for scientific research based on the exploration of large datasets. Current scientific research is often interdisciplinary, making data integration a critical technique for combining data from different scientific domains. Research data management is a critical part of this paradigm, through the proposition and development of methods, techniques, and practices for managing scientific data through their life cycle. Research on microbial communities follows the same pattern of production of large amounts of data obtained, for instance, from sequencing organisms present in environmental samples. Data on microbial communities can come from a multitude of sources and can be stored in different formats. For example, data from metagenomics, metatranscriptomics, metabolomics, and biological imaging are often combined in studies. In this article, we describe the design and current state of implementation of an integrative research data management framework for the Cluster of Excellence Balance of the Microverse aiming to allow for data on microbial communities to be more easily discovered, accessed, combined, and reused. This framework is based on research data repositories and best practices for managing workflows used in the analysis of microbial communities, which includes recording provenance information for tracking data derivation.
Search for neutrinoless quadruple-$β$ decay of $^{150}$Nd with the NEMO-3 detector
Creators: name: Arnold, R.
name: Augier, C.
name: Barabash, A. S.
name: Basharina-Freshville, A.
name: Blondel, S.
name: Blot, S.
name: Bongrand, M.
name: Boursette, D.
name: Brudanin, V.
name: Busto, J.
name: Caffrey, A. J.
name: Calvez, S.
name: Cascella, M.
name: Cerna, C.
name: Cesar, J. P.
name: Chapon, A.
name: Chauveau, E.
name: Chopra, A.
name: Dawson, L.
name: Duchesneau, D.
name: Durand, D.
name: Egorov, V.
name: Eurin, G.
name: Evans, J. J.
name: Fajt, L.
name: Filosofov, D.
name: Flack, R.
name: Garrido, X.
name: Gómez, H.
name: Guillon, B.
name: Guzowski, P.
name: Hodák, R.
name: Huber, A.
name: Hubert, P.
name: Hugon, C.
name: Jullian, S.
name: Klimenko, A.
name: Kochetov, O.
name: Konovalov, S. I.
name: Kovalenko, V.
name: Lalanne, D.
name: Lang, K.
name: Lemière, Y.
name: Noblet, T. Le
name: Liptak, Z.
name: Liu, X. R.
name: Loaiza, P.
name: Lutter, G.
name: Macko, M.
name: Macolino, C.
name: Mamedov, F.
name: Marquet, C.
name: Mauger, F.
name: Morgan, B.
name: Mott, J.
name: Nemchenok, I.
name: Nomachi, M.
name: Nova, F.
name: Nowacki, F.
name: Ohsumi, H.
name: Patrick, C.
name: Pahlka, R. B.
name: Perrot, F.
name: Piquemal, F.
name: Povinec, P.
name: Přidal, P.
name: Ramachers, Y. A.
name: Remoto, A.
name: Reyss, J. L.
name: Riddle, C. L.
name: Rukhadze, E.
name: Saakyan, R.
name: Salazar, R.
name: Sarazin, X.
name: Shitov, Yu.
name: Simard, L.
name: Šimkovic, F.
name: Smetana, A.
name: Smolek, K.
name: Smolnikov, A.
name: Söldner-Rembold, S.
name: Soulé, B.
name: Štefánik, D.
name: Štekl, I.
name: Suhonen, J.
name: Sutton, C. S.
name: Szklarz, G.
name: Thomas, J.
name: Timkin, V.
name: Torre, S.
name: Tretyak, Vl. I.
name: Tretyak, V. I.
name: Umatov, V. I.
name: Vanushin, I.
name: Vilela, C.
name: Vorobel, V.
name: Waters, D.
name: Xie, F.
name: Žukauskas, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We report the results of a first experimental search for lepton number violation by four units in the neutrinoless quadruple-$β$ decay of $^{150}$Nd using a total exposure of $0.19$ kg$\cdot$y recorded with the NEMO-3 detector at the Modane Underground Laboratory (LSM). We find no evidence of this decay and set lower limits on the half-life in the range $T_{1/2}>(1.1-3.2)\times10^{21}$ y at the $90\%$ CL, depending on the model used for the kinematic distributions of the emitted electrons.
description: 6 pages, 4 figures
Needed Government Programs in Marketing
Creators: name: Waugh, Frederick V.
Publisher: name: Unknown
Year: 1945
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business

description: Excerpts: For at least 2 years, and probably longer, the agricultural program will be dominated by commitments to support farm income and the prices of agricultural products. This fact will have a decisive bearing on the programs of all public agencies dealing with agricultural production and with the marketing of foods and fibers. I shall not discuss production programs, but I shall try to indicate how the price-support commitments may affect Government programs in marketing. Three kinds of programs may be necessary to carry out commitments to support farm income or the prices of agricultural products. These are: (1) programs to reduce supplies, (2) programs to maintain demand, and (3) programs to reduce marketing costs.
description: Address by Frederick V. Waugh, Office of War Mobilization and Reconversion, at the 23rd Annual Agricultural Outlook Conference, Washington, D. C. December 4, 1945.
Preliminary characterization of a Tritrichomonas foetus-like protozoan isolated from preputial smegma of virgin bulls
Creators: name: BonDurant, R. H.
name: Gajadhar, A.
name: Campero, C. M.
name: Johnson, E.
name: Lun, Z-R.
name: Nordhausen, R. W.
name: Van Hoosear, K. A.
name: Villanueva, M. R.
name: Walker, R. L.
Publisher: name: The Bovine Practitioner
Year: 1999

description: Trichomonad isolates from 14 virgin beef bulls in 3 California herds were submitted to the California Veterinary Diagnostic Laboratory for confirmation of a diagnosis of bovine trichomoniasis. Specimens were submitted in self-contained diagnostic pouches and produced cultures with a protozoan like Tritrichomonas foetus. Under bright-field microscopy, large numbers of single-celled motile organisms, approximately 12 μm x 9 μm, with multiple anterior flagellae, a posterior flagellum, axostyle, and a clearly visible undulating membrane were detected. Motility was jerky and rolling. Air-dried smears of cultures stained with Giemsa or Diff-Quick/iodine revealed an organism similar to T. foetus, although somewhat more rounded (less spindle-shaped). Several organisms appeared to have 4 flagellae, and there were numerous dark-staining bodies in the cytoplasm. Scanning electron micrographs (5000 X) clearly showed four anterior flagellae and an undulating membrane on most organisms, and an axostyle that was consistently longer than that seen in T. foetus. Specific primers for T. foetus were used in a polymerase chain reaction (PCR) assay. No amplification product was detected from any of the "virgin bull" isolates, while positive control isolates of T. foetus all yielded an amplicon of the expected size. On the basis of this partial morphological and molecular characterization, it was tentatively concluded that the isolated organism is not T. foetus, and speculate that it may be a commensal organism of the lower bowel. The recovery of non T. foetus trichomonads in a commercially available diagnostic system suggests that more specific methods may be needed for discrimination among trichomonads isolated from the preputial cavity of bulls.
description: The Bovine Practitioner, Vol. 33, No. 2 (1999 May)
Dynamical Pair Production at Sub-Barrier Energies for Light Nuclei
Creators: name: Settlemyre, T.
name: Zheng, H.
name: Bonasera, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the collision of two heavy ions, the strong repulsion coming from the Coulomb field is enough to produce $e^+e^-$ pair(s) from vacuum fluctuations. The energy is provided by the kinetic energy of the ions and the Coulomb interaction at the production point. If, for instance, the electron is located at the center of mass (C.M.) of the two ions moving along the \emph{z}-axis, and the positron is at a distance \emph{x} from the electron, the ions can be accelerated towards each other since the Coulomb barrier is lowered by the presence of the electron. This screening results in an increase in the kinetic energy of the colliding ions and may result in an increase in the fusion probability of light ions above the adiabatic limit.
description: 6 pages, 4 figures
Time-dependent mean field determination of the excitation energy in transfer reactions: application to the reaction $^{238}$U on $^{12}$C at 6.14 MeV/A
Creators: name: Scamps, G.
name: Rodríguez-Tajes, C.
name: Lacroix, D.
name: Farget, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The internal excitation of nuclei after multi-nucleon transfer is estimated by using the time-dependent mean-field theory. Transfer probabilities for each channel as well as the energy loss after re-separation are calculated. By combining these two informations, we show that the excitation energy distribution of the transfer fragments can be obtained separately for the different transfer channels. The method is applied to the reaction involving a $^{238}$U beam on a $^{12}$C target, which has recently been measured at GANIL. It is shown that the excitation energy calculated with the microscopic theory compares well with the experimental observation, provided that the competition with fusion is properly taken into account. The reliability of the excitation energy is further confirmed by the comparison with the phenomenological HIPSE model at higher center of mass energies.
description: 7 pages, 8 figures
MMDRFuse: Distilled Mini-Model with Dynamic Refresh for Multi-Modality Image Fusion
Creators: name: Deng, Yanglin
name: Xu, Tianyang
name: Cheng, Chunyang
name: Wu, Xiao-Jun
name: Kittler, Josef
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In recent years, Multi-Modality Image Fusion (MMIF) has been applied to many fields, which has attracted many scholars to endeavour to improve the fusion performance. However, the prevailing focus has predominantly been on the architecture design, rather than the training strategies. As a low-level vision task, image fusion is supposed to quickly deliver output images for observation and supporting downstream tasks. Thus, superfluous computational and storage overheads should be avoided. In this work, a lightweight Distilled Mini-Model with a Dynamic Refresh strategy (MMDRFuse) is proposed to achieve this objective. To pursue model parsimony, an extremely small convolutional network with a total of 113 trainable parameters (0.44 KB) is obtained by three carefully designed supervisions. First, digestible distillation is constructed by emphasising external spatial feature consistency, delivering soft supervision with balanced details and saliency for the target network. Second, we develop a comprehensive loss to balance the pixel, gradient, and perception clues from the source images. Third, an innovative dynamic refresh training strategy is used to collaborate history parameters and current supervision during training, together with an adaptive adjust function to optimise the fusion network. Extensive experiments on several public datasets demonstrate that our method exhibits promising advantages in terms of model efficiency and complexity, with superior performance in multiple image fusion tasks and downstream pedestrian detection application. The code of this work is publicly available at https://github.com/yanglinDeng/MMDRFuse.
description: 10 pages, 8 figures, accpeted by ACM International Conference on Multimedia 2024(Oral)
Unraveling the Scotogenic Model at Muon Collider
Creators: name: Liu, Jiao
name: Han, Zhi-Long
name: Jin, Yi
name: Li, Honglei
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Scotogenic model extends the standard model with three singlet fermion $N_i$ and one inert doublet scalar $η$ to address the common origin of tiny neutrino mass and dark matter. For fermion dark matter $N_1$, a hierarchical Yukawa structure $|y_{1e}|\ll|y_{1μ}|\sim|y_{1τ}|\sim\mathcal{O}(1)$ is usually favored to satisfy constraints from lepton flavor violation and relic density. Such large $μ$-related Yukawa coupling would greatly enhance the pair production of charged scalar $η^\pm$ at the muon collider. In this paper, we investigate the dilepton signature of the Scotogenic model at a 14 TeV muon collider. For the dimuon signature $μ^+μ^-+/ \hspace{-0.65em} E_T$, we find that most viable samples can be probed with $200~\text{fb}^{-1}$ data. The ditau signature $τ^+τ^-+/ \hspace{-0.65em}E_T$ is usually less promising but is important to probe the small $|y_{1μ}|$ region. The mono-photon signature $γ+/ \hspace{-0.65em} E_T$ could also probe the compressed mass region $M_1\lesssim M_{η^\pm}$. Masses of charged scalar $η^\pm$ and dark matter $N_1$ can be further extracted by a binned likelihood fit of the dilepton energy.
description: 34 pages, 15figures, 5 tables. add discussion on monophoton. matches JHEP version
RIoTBench: A Real-time IoT Benchmark for Distributed Stream Processing Platforms
Creators: name: Shukla, Anshu
name: Chaturvedi, Shilpa
name: Simmhan, Yogesh
Publisher: name: arXiv
Year: 2017
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The Internet of Things (IoT) is an emerging technology paradigm where millions of sensors and actuators help monitor and manage, physical, environmental and human systems in real-time. The inherent closedloop responsiveness and decision making of IoT applications make them ideal candidates for using low latency and scalable stream processing platforms. Distributed Stream Processing Systems (DSPS) hosted on Cloud data-centers are becoming the vital engine for real-time data processing and analytics in any IoT software architecture. But the efficacy and performance of contemporary DSPS have not been rigorously studied for IoT applications and data streams. Here, we develop RIoTBench, a Realtime IoT Benchmark suite, along with performance metrics, to evaluate DSPS for streaming IoT applications. The benchmark includes 27 common IoT tasks classified across various functional categories and implemented as reusable micro-benchmarks. Further, we propose four IoT application benchmarks composed from these tasks, and that leverage various dataflow semantics of DSPS. The applications are based on common IoT patterns for data pre-processing, statistical summarization and predictive analytics. These are coupled with four stream workloads sourced from real IoT observations on smart cities and fitness, with peak streams rates that range from 500 to 10000 messages/sec and diverse frequency distributions. We validate the RIoTBench suite for the popular Apache Storm DSPS on the Microsoft Azure public Cloud, and present empirical observations. This suite can be used by DSPS researchers for performance analysis and resource scheduling, and by IoT practitioners to evaluate DSPS platforms.
description: 33 pages. arXiv admin note: substantial text overlap with arXiv:1606.07621
Can SAR improve RSVQA performance?
Creators: name: Tosato, Lucrezia
name: Lobry, Sylvain
name: Weissgerber, Flora
name: Wendling, Laurent
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Remote sensing visual question answering (RSVQA) has been involved in several research in recent years, leading to an increase in new methods. RSVQA automatically extracts information from satellite images, so far only optical, and a question to automatically search for the answer in the image and provide it in a textual form. In our research, we study whether Synthetic Aperture Radar (SAR) images can be beneficial to this field. We divide our study into three phases which include classification methods and VQA. In the first one, we explore the classification results of SAR alone and investigate the best method to extract information from SAR data. Then, we study the combination of SAR and optical data. In the last phase, we investigate how SAR images and a combination of different modalities behave in RSVQA compared to a method only using optical images. We conclude that adding the SAR modality leads to improved performances, although further research on using SAR data to automatically answer questions is needed as well as more balanced datasets.
description: 6 pages, 4 figures
Analytic expressions for the dark matter-baryon relations
Creators: name: Chan, Man Ho
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recently, some very strong correlations between the distribution of dark matter and baryons (the dark matter-baryon relations) in galaxies with very different morphologies, masses, sizes, and gas fractions have been obtained. Some models have been suggested to explain why the dark matter contribution is fully specified by that of the baryons. In this article, we derive two analytic expressions to explain the observed dark matter-baryon relations based on the cold dark matter (CDM) model. The resultant expressions give excellent agreement with the observational data. The parameters involved in the analytic expressions are closely related to the amount of the baryon content. This model can provide a theoretical understanding of the strong correlations observed. We suggest that the observed relation represents the end product of galaxy formation.
description: 9 pages, appear in International Journal of Modern Physics D
Effects of extended components of \oiii on the correlation between the \oiii luminosity and the power-law continuum luminosity for active galactic nuclei
Creators: name: Zhang, XueGuang
name: Feng, LongLong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this manuscript, we check the well-known correlation between \oiii luminosity and continuum luminosity (\loiiicon) for AGN by a large sample of 1982 SDSS QSOs with $z<0.8$ and with high quality spectra. The strong correlation of \loiiicon can be found, similar as previous results for AGN. Moreover, among the 1982 QSOs, there are 708 QSOs with the [O~{\sc iii}]$λ$5007Å described by two components: one core component plus one extended component. Based on the luminosity from the core components ($L_{\rm [O~\textsc{iii}],~narrow}$) and from the extended components ($L_{\rm [O~\textsc{iii}],~ext}$), we confirm that the correlation of $L_{{\rm [O~\textsc{iii}],~ext}}~-~L_{\rm 5100\textscÅ}$ is more stronger and tighter than the correlations on the total \oiii luminosity and on the luminosity of the core components of the \oiii lines. Therefore, the luminosity of the extended components should be better applied to trace AGN intrinsic luminosity. Meanwhile, we have found strong line width correlation and line luminosity correlation between the core components and the extended components, indicating the extended components of the \oiii lines should be not due to commonly considered radial flows in the common \oiii line clouds. And virial effects due to gravity of central black holes naturally lead to the wider extended components from regions more nearer to central black holes. Finally, we can say that the reported correlation of $L_{{\rm [O~\textsc{iii}],~narrow}}~-~L_{\rm 5100\textscÅ}$ on the core components of the \oiii lines should be more better to estimate AGN intrinsic luminosity in Type-2 narrow line AGN, because of totally/partly obscured extended components.
description: 8 pages, 7 figures, Accepted to be published in MNRAS
Graphene Dirac fermions in symmetric electric and magnetic fields: the case of an electric square well
Creators: name: Ateş, İsmail Burak
name: Kuru, Şengül
name: Negro, Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, a simple method is proposed to get analytical solutions (or with the help of a finite numerical calculations) of the Dirac-Weyl equation for low energy electrons in graphene in the presence of certain electric and magnetic fields. In order to decouple the Dirac-Weyl equation we have assumed a displacement symmetry of the system along a direction and some conditions on the magnetic and electric fields. The resulting equations have the natural form to apply the technique of supersymmetric quantum mechanics. The example of an electric well with square profile is worked out in detail to illustrate some of the most interesting features of this procedure.
description: 15 pages, 6 figures
Estimating Temperature via Sequential Measurements
Creators: name: De Pasquale, Antonella
name: Yuasa, Kazuya
name: Giovannetti, Vittorio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the efficiency of estimation procedures where the temperature of an external bath is indirectly recovered by monitoring the transformations induced on a probing system that is put in thermal contact with the bath. In particular we compare the performances of sequential measurement schemes where the probe is initialized only once and measured repeatedly during its interaction with the bath, with those of measure & re-prepare approaches where instead, after each interaction-and-measurement stage, the probe is reinitialized into the same fiduciary state. From our analysis it is revealed that the sequential approach, while being in general not capable of providing the best accuracy achievable, is nonetheless more versatile with respect to the choice of the initial state of the probe, yielding on average smaller indetermination levels.
description: 7 pages, 7 figures
Thermodynamics of amide + ketone mixtures. 1. Volumetric, speed of sound and refractive index data for N,N-dimethylformamide + 2-alkanone systems at several temperatures
Creators: name: Cobos, Ana
name: Hevia, Fernando
name: González, Juan Antonio
name: de la Fuente, Isaías García
name: Tristán, Cristina Alonso
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Densities, $ρ$, speeds of sound, $c$, and refractive indices, $n_{\text{D}}$, have been measured for the systems N,N-dimethylformamide (DMF) + propanone, + 2-butanone, or + 2-pentanone in the temperature ($T$) range from 293.15 to 303.15 K and at 298.15 K for the DMF + 2-heptanone mixture. Due to the high volatility of acetone, the corresponding $n_{\text{D}}$ measurements were developed at 293.15 K and 298.15 K. The direct experimental data were used to determine the excess molar volumes, $V_{\text{m}}^{\text{E}}$, and the excess refractive indices, $n_{\text{D}}^{\text{E}}$, at the working $T$. Values of the excess functions at 298.15 K, for the speed of sound, $c^{\text{E}}$, the isentropic compressibility, $κ_S^{\text{E}}$ and for the excess thermal expansion coefficient, $α_p^{\text{E}}$, were also calculated. The investigated systems are characterized by strong amide-ketone interactions, which become weaker when the alkanone size is increased. This is supported by negative $V_{\text{m}}^{\text{E}}$ values; by the dependence on $T$ and pressure of $V_{\text{m}}^{\text{E}}$, and by positive $P_{\text{int}}^{\text{E}}$ (excess internal pressure) values. Analysis of the systems in terms of the Rao's constant indicates that there is no complex formation. In addition, negative $V_{\text{m}}^{\text{E}}$ values also reveal the existence of structural effects, which largely contribute to the excess molar enthalpy, $H_{\text{m}}^{\text{E}}$. $V_{\text{m}}^{\text{E}}$ and $H_{\text{m}}^{\text{E}}$ values increase with the chain length of the 2-alkanone. It allows to conclude that the relative $V_{\text{m}}^{\text{E}}$ variation with the ketone size is closely related to that of the interactional contribution to this excess function. Molar refraction values, $R_{\text{m}}$, show that dispersive interactions become more relevant for the systems including longer 2-alkanones.
High-order nonlinear terahertz probing of the two-band superconductor MgB$_2$: Third- and fifth-order harmonic generation
Creators: name: Reinhoffer, C.
name: Pilch, P.
name: Reinold, A.
name: Derendorf, P.
name: Kovalev, S.
name: Deinert, J. -C.
name: Ilyakov, I.
name: Ponomaryov, A.
name: Chen, Min
name: Xu, Tie-Quan
name: Wang, Yue
name: Gan, Zi-Zhao
name: Wu, De-Sheng
name: Luo, Jian-Lin
name: Germanskiy, S.
name: Mashkovich, E. A.
name: van Loosdrecht, P. H. M.
name: Eremin, I. M.
name: Wang, Zhe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on high-order harmonic generation in the two-band superconductor MgB$_2$ driven by intense terahertz electromagnetic pulses. Third- and fifth-order harmonics are resolved in time domain and investigated as a function of temperature and in applied magnetic fields crossing the superconducting phase boundary. The high-order harmonics in the superconducting phase reflects nonequilibrium dynamics of the superconducting order parameter in MgB$_2$, which is probed via nonlinear coupling to the terahertz field. The observed temperature and field dependence of the nonlinear response allows to establish the superconducting phase diagram.
description: 9 pages, 5 figures