cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Apparent Lack of Be X-ray Binaries with Black Holes
Creators: name: Belczynski, Krzysztof
name: Ziolkowski, Janusz
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the Galaxy there are 64 Be X-ray binaries known to-date. Out of those, 42 host a neutron star, and for the reminder the nature of a companion is not known. None, so far, is known to host a black hole. There seems to be no apparent mechanism that would prevent formation or detection of Be stars with black holes. This disparity is referred to as a missing Be -- black hole X-ray binary problem. We point out that current evolutionary scenarios that lead to the formation of Be X-ray binaries predict that the ratio of these binaries with neutron stars to the ones with black holes is rather high F_NStoBH=10-50, with the more likely formation models providing the values at the high end. The ratio is a natural outcome of (i) the stellar initial mass function that produces more neutron stars than black holes and (ii) common envelope evolution (i.e. a major mechanism involved in the formation of interacting binaries) that naturally selects progenitors of Be X-ray binaries with neutron stars (binaries with comparable mass components have more likely survival probabilities) over ones with black holes (which are much more likely to be common envelope mergers). A comparison of this ratio (i.e. F_NStoBH=30) with the number of confirmed Be -- neutron star X-ray binaries (42) indicates that the expected number of Be -- black hole X-ray binaries is of the order of only 0-2. This is entirely consistent with the observed Galactic sample.
description: 13 pages, ApJ 2009 (accepted)
Acute Vaginal Candidiasis: A review of treatment guidelines and Siriraj experience
Creators: name: Chenchit Chayachinda
Publisher: name: PIMDEE Co., Ltd.
Year: 2021
Subjects: vaginal candidiasis
treatment guideline
Siriraj experience

description: Thai Journal of Obstetrics and Gynaecology, 29, 6, 306-312
Accuracy of Intrapartum Fetal Weight Estimation Using Dare's Formula and Transabdominal Ultrasonography in Pregnant Women with Normal and High Prepregnant BMI at Maharat Nakhon Ratchasima Hospital
Creators: name: Waranyu Lertrat
Publisher: name: PIMDEE Co., Ltd.
Year: 2021
Subjects: fetal weight estimation
Dare's formula
Hadlock's formula
overweight
obesity

description: Thai Journal of Obstetrics and Gynaecology, 29, 6, 313-321
Creation and detection of skyrmions in a Bose-Einstein condensate
Creators: name: Leslie, L. S.
name: Hansen, A.
name: Wright, K. C.
name: Deutsch, B. M.
name: Bigelow, N. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present the first experimental realization and characterization of two-dimensional skyrmions and half-skyrmions in a spin-2 Bose-Einstein condensate. The continuous rotation of the local spin of the skyrmion through an angle of pi (and half-skyrmion through an angle of pi/2) across the cloud is confirmed by the spatial distribution of the three spin states as parameterized by the bending angle of the ell-vector. The winding number, w = (0, 1, 2), of the skyrmions is confirmed through matter-wave interference.
description: 4 pages, 3 figures, accepted for publication in PRL
Clinical predictors of adverse cardiovascular events for acute pediatric drug exposures
Creators: name: Carreiro, Stephanie
name: Miller, Simone
name: Wang, Bo
name: Wax, Paul
name: Campleman, Sharan
name: F. Manini, Alex
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Context: Risk factors for adverse cardiovascular events (ACVE) from drug exposures have been well-characterized in adults but not studied in children. The objective of the present study is to describe the incidence, characteristics, and risk factors for in-hospital ACVEs among pediatric emergency department (ED) patients with acute drug exposures. Methods: This is a prospective cohort design evaluating patients in the Toxicology Investigators Consortium (ToxIC) Registry. Pediatric patients (age <18 years) who were evaluated at the bedside by a medical toxicologist for a suspected acute drug exposure were included. The primary outcome was in-hospital ACVE (myocardial injury, shock, ventricular dysrhythmia, or cardiac arrest). The secondary outcome was in-hospital death. Multiple logistic regression analyses were performed to examine novel clinical risk factors and extrapolate adult risk factors (bicarbonate <20 mEq/L; QTc ≥500 ms), for the primary/secondary outcomes. Results: Among the 13,097 patients (58.5% female), there were 278 in-hospital ACVEs (2.1%) and 39 in-hospital deaths (0.3%). Age and drug class of exposure (specifically opioids and cardiovascular drugs) were independently associated with ACVE. Compared with adolescents, children under 2 years old (OR: 0.41, 95% CI: 0.21–0.80), ages 2–6 (OR: 0.37, 95% CI: 0.21–0.80), and ages 7–12 (OR: 0.51, 95% CI: 0.27–0.95) were significantly less likely to experience an ACVE. Serum bicarbonate concentration <20 mEq/L (OR: 2.31, 95% CI: 1.48–3.60) and QTc ≥ 500 ms (OR: 2.83, 95% CI: 1.67–4.79) were independently associated with ACVE. Conclusion: Previously derived clinical predictors of ACVE from an adult drug overdose population were successfully extrapolated to this pediatric population. Novel associations with ACVE and death included adolescent age and opioid drug exposures. In the midst of the opioid crisis, these findings urgently warrant further investigation to combat adolescent opioid overdose morbidity and mortality.
The drying of lumber in a fluidized bed of inert solids
Creators: name: Veljkovic, Maja
Publisher: name: University of British Columbia
Year: 2010

description: The use of fluidized beds of hot inert solids for drying wood is a relatively new concept. Recent investigations on fluidized bed drying of thin veneer (1,2) have shown that more rapid drying can be achieved by this method than by conventional means. In the present work, blocks of Western Hemlock wood, 2 in. x 4 in. x 1 ft. containing 70% to 100% moisture (dry-basis) were dried in a fluidized bed of -20 +30 mesh sand at four levels of bed temperature (175, 190, 204, and 217°F) and three air velocities. The drying time required to reach 15% moisture content (M.C.) was 14-15 hrs. for lumber dried at 204°F as against two or more days generally taken in Kiln drying. The quality of the wood dried at bed temperatures of 204°F and below was not adversely affected. Bed temperature had a strong inverse effect on drying time, while the fluidizing air flow rate had little effect. The diffusion equation was employed to describe the movement of moisture during the falling-rate period of drying and the heat conduction equation to describe the unsteady-state movement of heat inside the drying block of wood. Mathematically, drying was treated both as a one and a two-dimensional problem. The resulting equations were solved on a digital computer to predict the average moisture content and the average temperature of the drying block of wood, each as a function of time. The distribution of moisture content within the drying block was also computed. The calculated results showed a good agreement with experimental data. The economics of fluidized bed drying were estimated and compared with the cost of Kiln drying. The results showed that the capital cost of the fluidized bed system is considerably lower while the operating cost is similar to that for kiln drying.
Triply eclipsing triple stars in the northern TESS fields: TICs 193993801, 388459317 and 52041148
Creators: name: Borkovits, T.
name: Mitnyan, T.
name: Rappaport, S. A.
name: Pribulla, T.
name: Powell, B. P.
name: Kostov, V. B.
name: Bíró, I. B.
name: Csányi, I.
name: Garai, Z.
name: Gary, B. L.
name: Kaye, T. G.
name: Komžík, R.
name: Terentev, I.
name: Omohundro, M.
name: Gagliano, R.
name: Jacobs, T.
name: Kristiansen, M. H.
name: LaCourse, D.
name: Schwengeler, H. M.
name: Czavalinga, D.
name: Seli, B.
name: Huang, C. X.
name: Pál, A.
name: Vanderburg, A.
name: Rodriguez, J. E.
name: Stevens, D. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work we report the discovery and analysis of three new triply eclipsing triple star systems found with the TESS mission during its observations of the northern skies: TICs 193993801, 388459317, and 52041148. We utilized the TESS precision photometry of the binary eclipses and third-body eclipsing events, ground-based archival and follow-up photometric data, eclipse timing variations, archival spectral energy distributions, as well as theoretical evolution tracks in a joint photodynamical analysis to deduce the system masses and orbital parameters of both the inner and outer orbits. In one case (TIC 193993801) we also obtained radial velocity measurements of all three stars. This enabled us to `calibrate' our analysis approach with and without `truth' (i.e., RV) data. We find that the masses are good to 1-3% accuracy with RV data and 3-10% without the use of RV data. In all three systems we were able to find the outer orbital period before doing any detailed analysis by searching for a longer-term periodicity in the ASAS-SN archival photometry data -- just a few thousand ASAS-SN points enabled us to find the outer periods of 49.28 d, 89.86 d, and 177.0 d, respectively. From our full photodynamical analysis we find that all three systems are coplanar to within $1^\circ - 3^\circ$. The outer eccentricities of the three systems are 0.003, 0.10, and 0.62, respectively (i.e., spanning a factor of 200). The masses of the three stars {Aa, Ab, and B} in the three systems are: {1.31, 1.19, 1.34}, {1.82, 1.73, 2.19}, and {1.62, 1.48, 2.74} M$_\odot$, respectively.
description: Accepted for publication in MNRAS. Tables 2-4, which will be published electronic only in the journal version, are fully available in this arXiv version
Induced interactions for ultracold Fermi gases in optical lattices
Creators: name: Kim, D. -H.
name: Törmä, P.
name: Martikainen, J. -P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the effect of optical lattices on the BCS superfluidity by using the Gorkov--Melik-Barkhudarov (GMB) correction for a two-component Fermi gas. We find that the suppression of the order parameter is strongly enhanced by the lattice effects. The predictions made by the GMB corrections are in qualitative and, for the cases studied, quantitative agreement with previous quantum Monte Carlo results. We discuss how the GMB correction extends the validity of the mean-field theory to a wider range of tunable optical lattice systems in different dimensions.
description: 4 pages, 4 figures
Fiction’s strategies of evidence and their cultural significance: The scientist as writer
Creators: name: Frank, Susanne
Publisher: name: Università degli Studi di Milano
Year: 2014
Subjects: Narrativisation, contextualisation, and popularisation of scientific hypotheses by means of fiction; evidentia as a narrative device; geopoetics; geopolitics

description: This article analyses the popular novel Sannikov’s land (published in 1926) by the famous Russian and Soviet geologist Vladimir A. Obruchev (1863–1956). It asks how scientific discourse on the one hand, and literary, fictional discourse on the other interact in this text that tells the story of the discovery of an Arctic island, which a Russian merchant had asserted to have seen, but the existence of which never could be affirmed. Basing his novel exclusively on well-founded scien- tific (geological as well as anthropological) hypotheses, Obruchev polemizes with a whole range of earlier texts from J. Verne to K. Hloucha. Unfolding the story of the Russian expedition, Obruchev pursues the aim (1) to deconstruct the utopian myth of a paradise on earth beyond the Arctic ice in its countless varieties; (2) to show that ancient myths—like the myth of the ex- istence of warm islands in the Arctic—are a form of protoscientific insight that should be taken seriously by modern science and transformed into scientific knowledge; and (3) to suggest that the Arctic islands—really existing, supposed to exist or be doomed—from a geological point of view belong to the Siberian mainland and therefore to Russian/Soviet territory.
description: ENTHYMEMA, No 10 (2014)
Ion-induced secondary electron emission from K-Cs-Sb, Na-K-Sb and Cs-Sb photocathodes and its relevance to the operation of gaseous avalanche photomultipliers
Creators: name: Lyashenko, A.
name: Breskin, A.
name: Chechik, R.
name: Dias, T. H. V. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The operation of visible-sensitive gaseous- and, to some extent, vacuum-photomultipliers is critically affected by secondary electrons originating from ion impact on the photocathode. A simple method for indirect measurement of the effective ion-induced secondary-electron emission (IISEE) coefficient from the photocathode into a gas medium, $γ_+^{eff}$ was developed. The experimental results with visible-sensitive K-Cs-Sb, Na-K-Sb and Cs-Sb photocathodes, yielded $γ_+^{eff}$ - values between 0.02 and 0.03 in Ar/CH$_{4}$ (95/5) at 700 mbar; these are in good agreement with theoretical calculations. The corresponding vacuum IISEE coefficients, $γ_+$, were estimated, based on a theoretical model, to be 0.47, 0.49 and 0.47 for K-Cs-Sb, Na-K-Sb and Cs-Sb photocathodes, respectively. The ratio of gas $γ_+^{eff}$ and vacuum $γ_+$ IISEE coefficients, calculated to be $\sim$0.06, is the fraction of secondary electrons surmounted the backscattering in the gas media.
description: 10 pages, 10 figures, for submission to J. Appl. Phys; (2009) accepted
Asymptotic Capacity of Large Fading Relay Networks with Random Node Failures
Creators: name: Huang, Chuan
name: Jiang, Jinhua
name: Cui, Shuguang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: To understand the network response to large-scale physical attacks, we investigate the asymptotic capacity of a half-duplex fading relay network with random node failures when the number of relays $N$ is infinitely large. In this paper, a simplified independent attack model is assumed where each relay node fails with a certain probability. The noncoherent relaying scheme is considered, which corresponds to the case of zero forward-link channel state information (CSI) at the relays. Accordingly, the whole relay network can be shown equivalent to a Rayleigh fading channel, where we derive the $ε$-outage capacity upper bound according to the multiple access (MAC) cut-set, and the $ε$-outage achievable rates for both the amplify-and-forward (AF) and decode-and-forward (DF) strategies. Furthermore, we show that the DF strategy is asymptotically optimal as the outage probability $ε$ goes to zero, with the AF strategy strictly suboptimal over all signal to noise ratio (SNR) regimes. Regarding the rate loss due to random attacks, the AF strategy suffers a less portion of rate loss than the DF strategy in the high SNR regime, while the DF strategy demonstrates more robust performance in the low SNR regime.
description: 24 pages, 5 figures, submitted to IEEE Transactions on Communications
Ambilateral collimation study of the twin-jets in NGC1052
Creators: name: Baczko, A. -K.
name: Ros, E.
name: Kadler, M.
name: Fromm, C. M.
name: Boccardi, B.
name: Perucho, M.
name: Krichbaum, T. P.
name: Burd, P. R.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: With the increased sensitivity and resolution of radio interferometry the study of the collimation and acceleration region of jets in Active Galactic Nuclei (AGN) has come into focus within the last years. Whereas a large fraction of AGN jets reveal a change from parabolic to conical collimation around the Bondi radius, a small number of sources deviate from this standard picture, including the radio galaxy NGC1052. We study the jet width profile, which provides valuable information about the interplay between the central engine and accretion disk system and the collimation and acceleration zone of the jets. We observed the double-sided active galaxy NGC1052 at six frequencies with the VLBA in 2017 and at 22GHz with RadioAstron in 2016. These data are combined with archival 15, 22, and 43 GHz multi-epoch VLBA observations. From ridge-line fitting we obtained width measurements along the jet and counter-jet which were fitted with broken power-laws. We find a break in the jet collimation profile at ~10^4 R_s (Schwarzschild radii). Downstream of the break the collimation is conical with a power-law index of 1.0 - 1.2 (cylindrical 0; parabolic 0.5; conical 1). The upstream power-law index of 0.36 for the approaching jet is neither cylindrical nor parabolic and for the receding jet with 0.16 close-to cylindrical. Both jets have an opening angle of ~30 degree at a distance of ~10^3 R_S and are well collimated with an opening angle of <10 degrees downstream of the break. There are significant differences in the upstream collimation profile between approaching (Eastern) and receding (Western) jet. Absorption or scattering in the surrounding torus as well as an accretion wind may mimic a cylindrical profile. We need to increase the observing frequencies, which do not suffer from absorption to find the true jet collimation profile upstream of 10^4 R_s.
description: 14 pages, 12 figures. Accepted for publication in Astronomy & Astrophysics
Review of Properties of the Top Quark from Measurements at the Tevatron
Creators: name: Pleier, Marc-André
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This review summarizes the program in the physics of the top quark being pursued at Fermilab's Tevatron proton-antiproton collider at a center of mass energy of 1.96 TeV. More than a decade after the discovery of the top quark at the two collider detectors CDF and D0, the Tevatron has been the only accelerator to produce top quarks and to study them directly. The Tevatron's increased luminosity and center of mass energy offer the possibility to scrutinize the properties of this heaviest fundamental particle through new measurements that were not feasible before, such as the first evidence for electroweak production of top quarks and the resulting direct constraints on the involved couplings. Better measurements of top quark properties provide more stringent tests of predictions from the standard model of elementary particle physics. In particular, the improvement in measurements of the mass of the top quark, with the latest uncertainty of 0.7% marking the most precisely measured quark mass to date, further constrains the prediction of the mass of the still to be discovered Higgs boson.
description: Revised and updated for publication in Int. J. Mod. Phys. A. 138 pages, 55 figures, 22 tables
Galaxy-Scale Strong Lensing Tests of Gravity and Geometric Cosmology: Constraints and Systematic Limitations
Creators: name: Schwab, Josiah
name: Bolton, Adam S.
name: Rappaport, Saul A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy-scale strong gravitational lenses with measured stellar velocity dispersions allow a test of the weak-field metric on kiloparsec scales and a geometric measurement of the cosmological distance-redshift relation, provided that the mass-dynamical structure of the lensing galaxies can be independently constrained to a sufficient degree. We combine data on 53 galaxy-scale strong lenses from the Sloan Lens ACS Survey with a well-motivated fiducial set of lens-galaxy parameters to find (1) a constraint on the post-Newtonian parameter gamma = 1.01 +/- 0.05 and (2) a determination of Omega_Lambda = 0.75 +/- 0.17 under the assumption of a flat universe. These constraints assume that the underlying observations and priors are free of systematic error. We evaluate the sensitivity of these results to systematic uncertainties in (1) total mass-profile shape, (2) velocity anisotropy, (3) light-profile shape, and (4) stellar velocity dispersion. Based on these sensitivities, we conclude that while such strong-lens samples can in principle provide an important tool for testing general relativity and cosmology, they are unlikely to yield precision measurements of gamma and Omega_Lambda unless the properties of the lensing galaxies are independently constrained with substantially greater accuracy than at present.
description: 8 pages, 5 figures; Accepted to ApJ
Andreev tunneling through a double quantum-dot system coupled to a ferromagnet and a superconductor: effects of mean field electronic correlations
Creators: name: Siqueira, E. C.
name: Cabrera, G. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the transport properties of a hybrid nanostructure composed of a ferromagnet, two quantum dots, and a superconductor connected in series. By using the non-equilibrium Green's function approach, we have calculated the electric current, the differential conductance and the transmittance for energies within the superconductor gap. In this regime, the mechanism of charge transmission is the Andreev reflection, which allows for a control of the current through the ferromagnet polarization. We have also included interdot and intradot interactions, and have analyzed their influence through a mean field approximation. In the presence of interactions, Coulomb blockade tend to localized the electrons at the double-dot system, leading to an asymmetric pattern for the density of states at the dots, and thus reducing the transmission probability through the device. In particular, for non-zero polarization, the intradot interaction splits the spin degeneracy, reducing the maximum value of the current due to different spin-up and spin-down densities of states. Negative differential conductance (NDC) appears for some regions of the voltage bias, as a result of the interplay of the Andreev scattering with electronic correlations. By applying a gate voltage at the dots, one can tune the effect, changing the voltage region where this novel phenomenon appears. This mechanism to control the current may be of importance in technological applications.
description: 12 pages, 11 figures
Orientifolded Matrices and Supersymmetries that Give Rise to Spacetime Directional Asymmetry of Effective Interactions
Creators: name: Itoyama, Hiroshi
name: Yoshioka, Reiji
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Effects of matrix orientifolding that preserves supersymmetries are considered in the IIB matrix model with regard to its effective dynamics generated for diagonal elements. Taking the case of maximal supersymmetries and the long distance expansion of the one-loop effective action as well as cases where the size of the matrices is small, we demonstrate that the directional asymmetry of spacetime brought upon by this setup in fact leads to that of the forces exerting on the spacetime points: in addition to the two-body attraction between two points, there are attractions toward the four dimensional plate.
description: 20 pages, 7 figures
Additional file 10 of Individual or combined transcatheter arterial chemoembolization and radiofrequency ablation for hepatocellular carcinoma: a time-to-event meta-analysis
Creators: name: Jiang, Chuang
name: Cheng, Gong
name: Liao, Mingheng
name: Huang, Jiwei
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 10: Supplementary Table 5B. Details of Major Complications among Included Studies.
Exploring the remarkable subpulse drift and polarization properties of PSR B0818-41
Creators: name: Bhattacharyya, Bhaswati
name: Gupta, Yashwant
name: Gil, Janusz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: PSR B0818-41 is one of the few pulsars which show multiple drift regions having well defined phase relationship. In this paper we report new results from the multifrequency GMRT observations of this pulsar. Significant linear polarization is observed with depolarization at the edge of the profile, due to orthogonal polarization. Circular polarization changes sign near the middle of the pulse profile at 1060 MHz, but not observed at 325 and 610 MHz. Remarkable frequency evolution of polarization angle (PA) is observed. Based on the frequency evolution of average profile, PA swing and results from subpulse drifting, we propose two possible emission geometries, alpha~11 deg, beta~-5.4 deg and alpha~175.4 deg, beta~-6.9 deg. Simulation of the pulsar radiation pattern with both these geometries reproduces the observed features in the drift pattern quite well. In addition to the remarkable subpulse drifting observed at 325 MHz, we report subpulse drifting at 244 and 610 MHz. We observe changes of drift rates, transitions from negative to stationary and stationary to negative drift rates, with some connection with nulls. Though P3m is the same for all the drift regions, P2m and Delta(Phi) values are different for the inner and outer drift regions. The peak emission from the leading and the trailing outer regions are offset by ~ 9 P1. Utilising this information, we solve the aliasing problem and predict P4~ 10 s, which makes it the fastest known carousel. The drift pattern from the two rings are phase locked for PSR B0818-41. The same is found to be true for, all pulsars showing drifting in multiple rings of emission and puts constraints on the theoretical models of pulsar emission mechanism and, favors a pan magnetospeheric radiation mechanism.
description: 19 pages, 29 figures and 4 tables, Submitted to MNRAS
The Weibel Instability inside the Electron-Positron Harris Sheet
Creators: name: Liu, Yi-Hsin
name: Swisdak, Marc
name: Drake, James F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recent full-particle simulations of electron-positron reconnection have revealed that the Weibel instability plays an active role in controlling the dynamics of the current layer and maintaining fast reconnection. A four-beam model is developed to explore the development of the instability within a narrow current layer characteristic of reconnection. The problem is reduced to two coupled second-order differential equations, whose growing eigenmodes are obtained via both asymptotic approximations and finite difference methods. Full particle simulations confirm the linear theory and help probe the nonlinear development of the instability. The current layer broadening in the reconnection outflow jet is linked to the scattering of high-velocity streaming particles in the Weibel-generated, out-of-plane magnetic field.
Circumplanetary disc properties obtained from radiation hydrodynamical simulations of gas accretion by protoplanets
Creators: name: Ayliffe, Ben A.
name: Bate, Matthew R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the properties of circumplanetary discs formed in three-dimensional, self-gravitating radiation hydrodynamical models of gas accretion by protoplanets. We determine disc sizes, scaleheights, and density and temperature profiles for different protoplanet masses, in solar nebulae of differing grain opacities. We find that the analytical prediction of circumplanetary disc radii in an evacuated gap (R_Hill/3) from Quillen & Trilling (1998) yields a good estimate for discs formed by high mass protoplanets. The radial density profiles of the circumplanetary discs may be described by power-laws between r^-2 and r^-3/2. We find no evidence for the ring-like density enhancements that have been found in some previous models of circumplanetary discs. Temperature profiles follow a ~r^-7/10 power-law regardless of protoplanet mass or nebula grain opacity. The discs invariably have large scaleheights (H/r > 0.2), making them thick in comparison with their encompassing circumstellar discs, and they show no flaring.
description: 9 pages, 6 figures, accepted for publication in MNRAS
Protein chemistry of triose phosphate isomerase
Creators: name: Burgess, Helen Diana
Publisher: name: University of British Columbia
Year: 2010

description: The protein, triose phosphate isomerase (TIM) has been isolated from fresh chicken breast muscle and purified by anion exchange chromatography on DSAE Sephadex A50 column. Further purification proceeded via Biogel A DEAE resin. The TIM fractions of both chromatographies were contained in two adjacent protein peaks, A and B. The separation of the two peaks was found to be based upon isozymic differences in the TIM active protein; isoelectric focusing, both column and gel, showed one isozyme in the Peak A protein with pI=7.65 while Peak B protein contained two isozymes of pI 7.56 and 7.49. Focusing of old peak B protein yielded a fourth isozyme with pI=7.62. No isozymic separation was observed with disc gel electrophoresis at pH 8.5. Amino acid analysis which was carried out on purified Peak A protein showed substantial deviations from literature values. The Peak A isozyme was modified via the reaction of the thiol of cysteine with the maleimide N-ethylmalelmide (NEM), or trifluoro N-ethylmaleimide (FEM), as well as with the disulfides 4,4' dithiopyridine (4-PDS) or 5,5'-dithiobis(2-nitroben-zoic acid) (DTNB). Two equivalents of reagent per molecule reacted but a kinetic non-equivalence-of the two sites to modification was observed. ¹⁹F NMR of the FEM labeled protein was performed. The final chapter of this thesis deals with the kinetic analysis at several temperatures of the modification of TIM by 4-PDS and DTNB both in the presence and In the absence of sub-strate glyceraldehyde 3-phosphate. Biphasic Arrhenius plots with a break at approximately 25°C were observed for the 4-PDS modification; In the presence of substrate, the activation energy for T>25°C was 7.2 kcal/mole while for T<25°C it was 50.0 kcal/mole. In the absence of substrate, the activation energy for T>25°C was 4.4 kcal/mole while for T<25°C, it was 39.9 kcal/mole. Lastly, a segment discussing the importance of the results described in this thesis, in terms of the current TIM literature is included.
On the Existence of Fixed Points of Contraction Mappings Depending of Two Functions on Cone Metric Spaces
Creators: name: Morales, José R.
name: Rojas, Edixon
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47H09, 47H10, 54E40, 54E50

description: In this paper, we study the existence of fixed points for mappings defined on complete, (sequentially compact) cone metric spaces, satisfying a general contractive inequality depending of two additional mappings.
description: 9 pages, submitted
RecGURU: Adversarial Learning of Generalized User Representations for Cross-Domain Recommendation
Creators: name: Li, Chenglin
name: Zhao, Mingjun
name: Zhang, Huanming
name: Yu, Chenyun
name: Cheng, Lei
name: Shu, Guoqiang
name: Kong, Beibei
name: Niu, Di
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Cross-domain recommendation can help alleviate the data sparsity issue in traditional sequential recommender systems. In this paper, we propose the RecGURU algorithm framework to generate a Generalized User Representation (GUR) incorporating user information across domains in sequential recommendation, even when there is minimum or no common users in the two domains. We propose a self-attentive autoencoder to derive latent user representations, and a domain discriminator, which aims to predict the origin domain of a generated latent representation. We propose a novel adversarial learning method to train the two modules to unify user embeddings generated from different domains into a single global GUR for each user. The learned GUR captures the overall preferences and characteristics of a user and thus can be used to augment the behavior data and improve recommendations in any single domain in which the user is involved. Extensive experiments have been conducted on two public cross-domain recommendation datasets as well as a large dataset collected from real-world applications. The results demonstrate that RecGURU boosts performance and outperforms various state-of-the-art sequential recommendation and cross-domain recommendation methods. The collected data will be released to facilitate future research.
description: 11 pages, 2 figures, 4 tables, Proceedings of the Fifteenth ACM International Conference on Web Search and Data Mining
การเพิ่มความคงตัวทางเคมีของน้ำมันพืชด้วยการเติมสารต้านออกซิเดชันChemical Stability Enhancement of Vegetable Oils By Addition of Antioxidants
Creators: name: ชุติมา ลิ้มมัทวาภิรัติ์
name: สนทยา ลิ้มมัทาภิรัติ์
Publisher: name: คณะเภสัชศาสตร์ ม.ศิลปากร/โรงพิมพ์ ม.ศิลปากร
Year: 2555
Subjects: น้ำมันพืช, ความคงตัวทางเคมีกรด,ไขมัน, สารต้านออกซิเดชัน ,Vegetable oil, chemical stability, fatty acidantioxidant

description: 1 (มค.-ธค.), 7, ไทยไภษัชยนิพนธ์
title: Inventaire après décès de Charles-François-Olivier Rosette de Brucourt, 19-23 janvier 1756
Creators: name: Levéel, Jean-François
name: Levéel, Jean-François
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: subject: inventaire
subject: histoire
subject: religion
subject: droit
subject: arts militaires
subject: sciences
subject: arts
subject: belles-lettres
subject: périodiques
subject: format
subject: prix

description: Inventaire des livres qui composent la bibliothèque personnelle de Rosette de Brucourt
description: Source: Archives départementales de la Manche, 5 E 14849, notariat de Valognes, fol. 724r-745v
Gating of two-dimensional electron systems in InGaAs/InAlAs heterostructures: the role of the intrinsic InAlAs deep donor defects
Creators: name: Prager, Michael
name: Trottmann, Michaela
name: Schmidt, Jaydean
name: Ebnet, Lucia
name: Schuh, Dieter
name: Bougeard, Dominique
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an analysis of gated InGaAs/InAlAs heterostructures, a device platform to realize spinorbitronic functionalities in semiconductors. The phenomenological model deduced from our magnetotransport experiments allows us to correlate the gate response of the studied two-dimensional electron systems to heterostructure design parameters, in particular the indium concentration. We explain the occurrence of metastable electrostatic configurations showing reduced capacitive coupling and provide gate operation strategies to reach classical field effect control in such heterostructures. Our study highlights the role of the intrinsic InAlAs deep donor defects, as they govern the dynamics of the electrostatic response to gate voltage variations through charge trapping and unintentional tunneling.
description: 11 pages, 7 figures
Multi-photon interactions in lepton photo-production on nuclei at high energies
Creators: name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study multi-photon effects in quantum electrodynamics in lepton photo-production on heavy nuclei and nuclear medium at high energies. We are interested in energy, charge density and nuclear geometry dependence of the cross sections. We use the impact parameter representation that allows us to reduce the problem of photo-production to the problem of propagation of electric dipoles in the nuclear Coulomb field. In the framework of the Glauber model we resum an infinite series of multiphoton amplitudes corresponding to multiple rescattering of the electric dipole on the nucleus. We find that unitarity effects arising due to multi-photon interactions are small and energy-independent for scattering on a single nucleus, whereas in the case of macroscopic nuclear medium they saturate the geometric limit of the total cross section. We discuss an analogy between nuclear medium and intense laser beams.
description: 18 pages, 4 figures; v3: final journal version
ResearchBox 1627, 'Attention and Opportunity Cost Neglect', https://researchbox.org/1627
Creators: name: Stephanie Smith
name: Ian Krajbich
name: Stephen Spiller
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Attention and Opportunity Cost Neglect'   Reference: Stephanie M. Smith, Stephen A. Spiller, Ian Krajbich, 'The Role of Visual Attention in Opportunity Cost Neglect and Consideration', CognitionNote: this backup was created automatically by a ResearchBox bot
TURK XOQONLIGI HARBIY SANʼATI
Creators: name: Nurmanov, A.Q.
name: Jabbarova, I.
Publisher: name: Zenodo
Year: 2023

description: Maqolada turkiy xalqlar, Turk xoqonligining tashkil topishi, xoqonlikning harbiy sanʼati haqida gap boradi. Xoqonlikning qudratining oshishida harbiy san’atning oʻrni haqida to‘xtalgan. Shu bilan birga xoqonlikning harbiy qurol-yarog‘lari, harbiy unvon va mansablar, qoʻshin tuzilishi, jang taktikalari haqida soʻz yuritilgan.
Additional file 7 of Individual or combined transcatheter arterial chemoembolization and radiofrequency ablation for hepatocellular carcinoma: a time-to-event meta-analysis
Creators: name: Jiang, Chuang
name: Cheng, Gong
name: Liao, Mingheng
name: Huang, Jiwei
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 7: Supplementary Table 3. The OS and RFS of TACE+RFA vs TACE or RFA.
In cerca di un’identità: due giovani scrittori di origini africane in Svezia
Creators: name: De Marco, Catia
Publisher: name: Università degli  Studi di Milano
Year: 2014

description: In cerca di un’identità: due giovani scrittori di origini
africane in Svezia
(Johannes Anyuru, En storm kom från paradiset, Stockholm, Norstedts, 2012, 248 pp., ISBN 978-911-304-087-5)
(Sami Said, Väldigt sällan fin, Stockholm, Natur och Kultur, 2012, 333 pp., ISBN 978-912-713-354-9)
description: Altre Modernità, 2014: NUMERO SPECIALE Migrazioni, diaspora, esilio nelle letterature e culture ispanoamericane
Additional file 1: of Cytokines for evaluation of chronic inflammatory status in ageing research: reliability and phenotypic characterisation
Creators: name: Koelman, Liselot
name: Pivovarova-Ramich, Olga
name: Pfeiffer, Andreas
name: Grune, Tilman
name: Aleksandrova, Krasimira
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Detection range and percentage detected for plasma cytokine levelsÂ in all samples. (DOCX 14 kb)
IRONWAN: Increasing Reliability of Overlapping Networks in LoRaWAN
Creators: name: Bhatia, Laksh
name: Chen, Po-Yu
name: Breza, Michael
name: Zhao, Cong
name: McCann, Julie A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: LoRaWAN deployments follow an ad-hoc deployment model that has organically led to overlapping communication networks, sharing the wireless spectrum, and completely unaware of each other. LoRaWAN uses ALOHA-style communication where it is almost impossible to schedule transmission between networks belonging to different owners properly. The inability to schedule overlapping networks will cause inter-network interference, which will increase node-to-gateway message losses and gateway-to-node acknowledgement failures. This problem is likely to get worse as the number of LoRaWAN networks increase. In response to this problem, we propose IRONWAN, a wireless overlay network that shares communication resources without modifications to underlying protocols. It utilises the broadcast nature of radio communication and enables gateway-to-gateway communication to facilitate the search for failed messages and transmit failed acknowledgements already received and cached in overlapping network's gateways. IRONWAN uses two novel algorithms, a Real-time Message Inter-arrival Predictor, to highlight when a server has not received an expected uplink message. The Interference Predictor ensures that extra gateway-to-gateway communication does not negatively impact communication bandwidth. We evaluate IRONWAN on a 1000-node simulator with up to ten gateways and a 10-node testbed with 2-gateways. Results show that IRONWAN can achieve up to 12\% higher packet delivery ratio (PDR) and total messages received per node while increasing the minimum PDR by up to 28\%. These improvements save up to 50\% node's energy. Finally, we demonstrate that IRONWAN has comparable performance to an optimal solution (wired, centralised) but with 2-32 times lower communication costs. IRONWAN also has up to 14\% better PDR when compared to FLIP, a wired-distributed gateway-to-gateway protocol in certain scenarios.
description: Accepted for publication at IEEE Internet of Things Journal
JEWEL - a Monte Carlo Model for Jet Quenching
Creators: name: Zapp, Korinna
name: Stachel, Johanna
name: Wiedemann, Urs Achim
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Monte Carlo model JEWEL 1.0 (Jet Evolution With Energy Loss) simulates parton shower evolution in the presence of a dense QCD medium. In its current form medium interactions are modelled as elastic scattering based on perturbative matrix elements and a simple prescription for medium induced gluon radiation. The parton shower is interfaced with a hadronisation model. In the absence of medium effects JEWEL is shown to reproduce jet measurements at LEP. The collisional energy loss is consistent with analytic calculations, but with JEWEL we can go a step further and characterise also jet-induced modifications of the medium. Elastic and inelastic medium interactions are shown to lead to distinctive modifications of the jet fragmentation pattern, which should allow to experimentally distinguish between collisional and radiative energy loss mechanisms. In these proceedings the main JEWEL results are summarised and a Monte Carlo algorithm is outlined that allows to include the Landau-Pomerantschuk-Migdal effect in probabilistic frameworks.
description: Contribution to the 4th international workshop High-pT physics at LHC 09, February 4-7, 2009, Prague, Czech Republic, submitted to PoS
Implementation of Connectivity and Handover through Wireless Sensor Node based Techniques
Creators: name: Shet, N. S. V.
name: Chandrasekaran, K.
name: Shet, K. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper a scheme for handoff and connectivity, based on wireless sensor nodetechniques is proposed. Scenes are created in Qualnet and simulated for a simple case. Results are discussed.
description: 5 pages, 8 figures
Interfacial and wetting properties of a binary point Yukawa fluid
Creators: name: Hopkins, Paul
name: Archer, Andrew J.
name: Evans, Robert
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the interfacial phase behavior of a binary fluid mixture composed of repulsive point Yukawa particles. Using a simple approximation for the Helmholtz free energy functional, which yields the random phase approximation (RPA) for the pair direct correlation functions, we calculate the equilibrium fluid density profiles of the two species of particles adsorbed at a planar wall. We show that for a particular choice (repulsive exponential) of the wall potentials and the fluid pair-potential parameters, the Euler-Lagrange equations for the equilibrium fluid density profiles may be transformed into a single ordinary differential equation and the profiles obtained by a simple quadrature. For certain other choices of the fluid pair-potential parameters fluid-fluid phase separation of the bulk fluid is observed. We find that when such a mixture is exposed to a planar hard-wall, the fluid exhibits complete wetting on the species 2 poor side of the binodal, i.e. we observe a thick film of fluid rich in species 2 adsorbed at the hard-wall. The thickness of the wetting film grows logarithmically with the concentration difference between the fluid state-point and the binodal and is proportional to the bulk correlation length of the intruding (wetting) fluid phase. However, for state points on the binodal that are further from the critical point, we find there is no thick wetting film. We determine the accompanying line of first-order (pre-wetting) surface phase transitions which separate a thin and thick adsorbed film. We show that for some other choices of repulsive wall potentials the pre-wetting line is still present, but its location and extent in the phase diagram is strongly dependent on the wall-fluid interaction parameters.
description: 11 pages, 7 figures. Accepted for publication in Journal of Chemical Physics
Photonic quantum transport in a nonlinear optical fiber
Creators: name: Hafezi, Mohammad
name: Chang, Darrick E.
name: Gritsev, Vladimir
name: Demler, Eugene
name: Lukin, Mikhail D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically study the transmission of few-photon quantum fields through a strongly nonlinear optical medium. We develop a general approach to investigate non-equilibrium quantum transport of bosonic fields through a finite-size nonlinear medium and apply it to a recently demonstrated experimental system where cold atoms are loaded in a hollow-core optical fiber. We show that when the interaction between photons is effectively repulsive, the system acts as a single-photon switch. In the case of attractive interaction, the system can exhibit either anti-bunching or bunching, associated with the resonant excitation of bound states of photons by the input field. These effects can be observed by probing statistics of photons transmitted through the nonlinear fiber.
description: 5 pages, 4 figures, V2: some changes in the presentation (mainly introduction and references), last part is removed to shorten the paper