cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Velimirović, Miloš M.: Byzantine Elements in Early Slavic Chant
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
New Constraints on the Origin of Surface Brightness Profile Breaks of Disk Galaxies from MaNGA
Creators: name: Tang, Yimeng
name: Chen, Qianhui
name: Zhang, Hong-Xin
name: Lin, Zesen
name: Chen, Guangwen
name: Gao, Yulong
name: Liang, Zhixiong
name: Liu, Haiyang
name: Kong, Xu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In an effort to probe the origin of surface brightness profile (SBP) breaks widely observed in nearby disk galaxies, we carry out a comparative study of stellar population profiles of 635 disk galaxies selected from the MaNGA spectroscopic survey. We classify our galaxies into single exponential (TI), down-bending (TII) and up-bending (TIII) SBP types, and derive their spin parameters and radial profiles of age/metallicity-sensitive spectral features. Most TII (TIII) galaxies have down-bending (up-bending) star formation rate (SFR) radial profiles, implying that abrupt radial changes of SFR intensities contribute to the formation of both TII and TIII breaks. Nevertheless, a comparison between our galaxies and simulations suggests that stellar migration plays a significant role in weakening down-bending $Σ_{\star}$ profile breaks. While there is a correlation between the break strengths of SBPs and age/metallicity-sensitive spectral features for TII galaxies, no such correlation is found for TIII galaxies, indicating that stellar migration may not play a major role in shaping TIII breaks, as is evidenced by a good correspondence between break strengths of $Σ_{\star}$ and surface brightness profiles of TIII galaxies. We do not find evidence for galaxy spin being a relevant parameter for forming different SBP types, nor do we find significant differences between the asymmetries of galaxies with different SBP types, suggesting that environmental disturbances or satellite accretion in the recent past do not significantly influence the break formation. By dividing our sample into early and late morphological types, we find that galaxies with different SBP types follow nearly the same tight stellar mass-$R_{25}$ relation, which makes the hypothesis that stellar migration alone can transform SBP types from TII to TI and then to TIII highly unlikely.
description: 22 pages, 14 figures, accepted for publication in ApJ
Nonequilibrium critical relaxation in the presence of extended defects
Creators: name: Fedorenko, Andrei A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study nonequilibrium critical relaxation properties of systems with quenched extended defects, correlated in $ε_d$ dimensions and randomly distributed in the remaining $d-ε_d$ dimensions. Using a field-theoretic renormalization-group approach, we find the scaling behavior of the nonequilibrium response and correlation functions and calculate the initial slip exponents $θ$ and $θ^{\prime}$, which describe the growth of correlations during the initial stage of the critical relaxation, in the two-loop approximation.
description: 9 pages, 1 figure, revtex4
Gravitational Particle Production in Loop Quantum Cosmology
Creators: name: Graef, Leila L.
name: Ramos, Rudnei O.
name: Vicente, Gustavo S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the gravitational particle production in the bounce phase of Loop Quantum Cosmology (LQC). We perform both analytical and numerical analysis of the particle production process in a LQC scenario with Bunch-Davies vacuum initial condition in the contracting phase. We obtain that if we extend the validity of the dressed metric approach beyond the limit of small backreaction in which it is well justified, this process would lead to a radiation dominated phase in the pre-inflationary phase of LQC. Our results indicate that the test field approximation, which is required in the truncation scheme used in the dressed metric approach, might not be a valid assumption in a LQC scenario with such initial conditions.
ECONOMIC EFFICIENCY VS. DISTRIBUTIVE EQUITY: THE "SAGEBRUSH REBELLION"
Creators: name: Obermiller, Frederick W.
name: Obermiller, Frederick W.
Publisher: name: Unknown
Year: 1982
Subjects: Land Economics/Use

description: The purpose of this paper is to interpret, from the viewpoint of an economist, some of the causes of the 'Sagebrush Rebellion,' a contemporary land reform movement directed toward the Bureau of Land Management and its control of the public domain. Distributive equity concerns on the part of 'Sagebrush Rebellion' supporters are identified, as are the contributions of neoclassical welfare theory to the debate. Reflections of those social and theoretical concerns in Federal legislation and agency policy and regulations are explored.
Ancient fortifications, modern firepower, and warlord politics : subtitle a study on the Siege of Xi’an and its historical significance
Creators: name: Tsang, Kingsley
Publisher: name: University of British Columbia
Year: 2009

description: The Warlord period (1916-28) is a much-neglected era in modern Chinese scholarship. Scholars tend to ignore it because the events were complicated and the warlords acted without an ideological commitment. They are seen as violent but unsophisticated thugs with minimum affects on the history of Chinese military. The Siege of Xi'an (April to November 1926) demonstrated the fallacy of this assumption and the uniqueness of the warlord military system. The warlords managed to fuse the Chinese and Western military experience in a hybrid warring style. This ad hoc system was utilized with great effectiveness under the circumstances of the time. One cannot transplant general military assumptions to this period since they fail to take into account the characteristics of the warlords. This study will ascertain the historical significance of the Siege of Xi'an during the Warlord period. The siege was the climax of the 1926 anti-Guominjun campaign between the Northern warlords Feng Yuxiang and the alliance of Zhang Zuolin and Wu Peifu. This was the last major campaign of the Warlord period with the three main players engaged in ferocious battles all over North China. The Guominjun prevailed in the end because a small detachment of its soldiers managed to hold the strategic city of Xi'an in an eight months siege. It showed the hybrid nature of the warlord military system as well as relevant regional and local issues. This study is divided into three parts: Part One discusses the historical and geopolitical importance of Xi'an; Part Two briefly summarizes the anti- Guominjun campaign, the military dispositions of the warlords and their strength and weakness; Part Three details the eight months' siege. The siege and the circumstance that gave rise to it are reconstructed based on sources from Chinese and Western secondary analyses, newspapers, Shaanxi gazetteer, the biographies of Feng Yuxiang and Yan Xishan.
EQUILIBRIUM VERSUS DISEQUILIBRIUM IN THE MARKET FOR NON-FED CATTLE
Creators: name: Ziemer, Rod F.
name: White, Fred C.
name: Ziemer, Rod F.
name: White, Fred C.
Publisher: name: Unknown
Year: 1982
Subjects: Demand and Price Analysis
Livestock Production/Industries

description: Beef-cow inventory demand is considered in a disequilibrium model of the U.S. live non-fed cattle market. Statistical results indicated the possible presence of disequilibrium prices. However, post-model evaluation indicated that the market for non-fed cattle has not been characterized by significant disequilibrium price behavior.
Dopant-modulated pair interaction in cuprate superconductors
Creators: name: Nunner, Tamara S.
name: Andersen, Brian M.
name: Melikyan, Ashot
name: Hirschfeld, P. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Comparison of recent experimental STM data with single-impurity and many-impurity Bogoliubov-de Gennes calculations strongly suggests that random out-of-plane dopant atoms in cuprates modulate the pair interaction locally. This type of disorder is crucial to understanding the nanoscale electronic structure inhomogeneity observed in BSCCO-2212, and can reproduce observed correlations between the positions of impurity atoms and various aspects of the local density of states such as the gap magnitude and the height of the coherence peaks. Our results imply that each dopant atom modulates the pair interaction on a length scale of order one lattice constant.
description: 5 pages, 4 figures
Additional file 2 of Incidence, risk factors and consequences of preterm birth – findings from a multi-centric observational study for 14 months in Nepal
Creators: name: Gurung, Abhishek
name: Wrammert, Johan
name: Sunny, Avinash K.
name: Gurung, Rejina
name: Netra Rana
name: Yuba Nidhi Basaula
name: Prajwal Paudel
name: Pokhrel, Amrit
name: KC, Ashish
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2.
Additional file 5 of Evaluation of fecal DNA extraction protocols for human gut microbiome studies
Creators: name: Lim, Mi Young
name: Park, Yong-Soo
name: Jung-Ha Kim
name: Nam, Young-Do
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S4. The relative abundances of several significantly differentially abundant genera obtained through protocol P in comparison with protocols SB and S.
Transition of Large $R$-Charge Operators on a Conformal Manifold
Creators: name: Sharon, Adar
name: Watanabe, Masataka
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the transition between phases at large $R$-charge on a conformal manifold. These phases are characterized by the behaviour of the lowest operator dimension $Δ(Q_R)$ for fixed and large $R$-charge $Q_R$. We focus, as an example, on the $D=3$, $\mathcal{N}=2$ Wess-Zumino model with cubic superpotential $W=XYZ+\fracτ{6}(X^3+Y^3+Z^3)$, and compute $Δ(Q_R,τ)$ using the $ε$-expansion in three interesting limits. In two of these limits the (leading order) result turns out to be \begin{equation*} Δ(Q_R,τ)= \begin{cases} \left(\text{BPS bound}\right)\left[1+O(ε|τ|^2Q_R)\right], & Q_R\ll \left\{ \frac{1}ε,\, \frac{1}{ε|τ|^2}\right\}\\ \frac{9}{8}\left(\frac{ε|τ|^2}{2+|τ|^2}\right)^{\frac{1}{D-1}}Q_R^{\frac{D}{D-1}} \left[1+O\left(\left(ε|τ|^2Q_R\right)^{-\frac{2}{D-1}}\right)\right], & Q_R\gg \left\{ \frac{1}ε,\, \frac{1}{ε|τ|^2}\right\} \end{cases} \end{equation*} which leads us to the double-scaling parameter, $ε|τ|^2Q_R$, which interpolates between the "near-BPS phase" ($Δ(Q)\sim Q$) and the "superfluid phase" ($Δ(Q)\sim Q^{D/(D-1)}$) at large $R$-charge. This smooth transition, happening near $τ=0$, is a large-$R$-charge manifestation of the existence of a moduli space and an infinite chiral ring at $τ=0$. We also argue that this behavior can be extended to three dimensions with minimal modifications, and so we conclude that $Δ(Q_R,τ)$ experiences a smooth transition around $Q_R\sim 1/|τ|^2$. Additionally, we find a first-order phase transition for $Δ(Q_R,τ)$ as a function of $τ$, as a consequence of the duality of the model. We also comment on the applicability of our result down to small $R$-charge.
Additional file 1 of Incidence, risk factors and consequences of preterm birth – findings from a multi-centric observational study for 14 months in Nepal
Creators: name: Gurung, Abhishek
name: Wrammert, Johan
name: Sunny, Avinash K.
name: Gurung, Rejina
name: Netra Rana
name: Yuba Nidhi Basaula
name: Prajwal Paudel
name: Pokhrel, Amrit
name: KC, Ashish
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Pemetaan Schema Data Pada Situs Discogs.com
Creators: name: Akbar, Adam
name: Rakhmawati, Nur Aini
Publisher: name: Zenodo
Year: 2021

description: Discogs.com merupakan sebuah website yang menyediakan informasi tentang diskografi musisi dari seluruh dunia. Situs ini bersifat crowdsource yang berarti data dimasukkan oleh pengguna dan divalidasi oleh pengguna lainnya. Discogs.com dikelola oleh tim yang dipimpin oleh Kevin, Nik dan Audrey. Artikel ini akan memetakan data band Dewa 19 yang terdapat pada Discogs.com
Characterizing galaxy clusters by their gravitational potential: systematics of cluster potential reconstruction
Creators: name: Tchernin, C.
name: Lau, E. T.
name: Stapelberg, S.
name: Hug, D.
name: Bartelmann, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context. Biases in mass measurements of galaxy clusters are one of the major limiting systematics in constraining cosmology with clusters. Aims. We aim to demonstrate that the systematics associated with cluster gravitational potentials are smaller than the hydrostatic mass bias and that cluster potentials could therefore be a good alternative to cluster masses in cosmological studies. Methods. Using cosmological simulations of galaxy clusters, we compute the biases in the hydrostatic mass (HE mass) and those in the gravitational potential, reconstructed from measurements at X-ray and millimeter wavelengths. In particular, we investigate the effects of the presence of substructures and of non-thermal pressure support on both the HE mass and the reconstructed potential. Results. We find that the bias in the reconstructed potential (6%) is less than that of the HE mass (13%), and that the scatter in the reconstructed potential decreases by about 35% with respect to that in the HE mass. Conclusions. This study shows that characterizing galaxy clusters by their gravitational potential is a promising alternative to using cluster masses in cluster cosmology.
description: submitted to the journal A&A, 16 pages, 26 figures
Epitaxial metals for interconnects beyond Cu
Creators: name: Barmak, Katayun
name: Ezzat, Sameer
name: Gusle, Ryan
name: Jog, Atharv
name: Kerdsongpanya, Sit
name: Khanya, Asim
name: Milosevic, Erik
name: Richardson, William
name: Sentosun, Kadir
name: Zangiabadi, Amirali
name: Gall, Daniel
name: Kaden, William E.
name: Mucciolo, Eduardo R.
name: Schelling, Patrick K.
name: West, Alan C.
name: Coffey, Kevin R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The experimentally measured resistivity of Co(0001) and Ru(0001) single crystal thin films, grown on c-plane sapphire substrates, as a function of thickness is modeled using the semiclassical model of Fuchs-Sondheimer. The model fits show that the resistivity of Ru would cross below that for Co at a thickness of approximately 20 nm. For Ru films with thicknesses above 20 nm, transmission electron microscopy evidences threading and misfit dislocations, stacking faults and deformation twins. Exposure of Co films to ambient air, and the deposition of oxide layers of SiO2, MgO, Al2O3 and Cr2O3 on Ru degrade the surface specularity of the metallic layer. However, for the Ru films, annealing in a reducing ambient restores the surface specularity. Epitaxial electrochemical deposition of Co on epitaxially-deposited Ru layers is used as an example to demonstrate the feasibility of generating epitaxial interconnects for back-end of line structures. An electron transport model based on a tight-binding approach is described, with Ru interconnects used an example. The model allows conductivity to be computed for structures comprising large ensembles of atoms (10^5-10^6), scales linearly with system size and can also incorporate defects.
description: 37 pages, 10 figures, to appear in the Journal of Vacuum Science & Technology A
Finite size scaling as a cure for supercell approximation errors in calculations of neutral native defects in InP
Creators: name: Castleton, C. W. M.
name: Mirbt, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The relaxed and unrelaxed formation energies of neutral antisites and interstitial defects in InP are calculated using ab initio density functional theory and simple cubic supercells of up to 512 atoms. The finite size errors in the formation energies of all the neutral defects arising from the supercell approximation are examined and corrected for using finite size scaling methods, which are shown to be a very promising approach to the problem. Elastic errors scale linearly, whilst the errors arising from charge multipole interactions between the defect and its images in the periodic boundary conditions have a linear plus a higher order term, for which a cubic provides the best fit. These latter errors are shown to be significant even for neutral defects. Instances are also presented where even the 512 atom supercell is not sufficiently converged. Instead, physically relevant results can be obtained only by finite size scaling the results of calculations in several supercells, up to and including the 512 atom cell and in extreme cases possibly even including the 1000 atom supercell.
description: 13 pages, 11 figures. Errata in tables I and III corrected
Additional file 4 of Evaluation of fecal DNA extraction protocols for human gut microbiome studies
Creators: name: Lim, Mi Young
name: Park, Yong-Soo
name: Jung-Ha Kim
name: Nam, Young-Do
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S3. Average relative abundance plot for DNA extraction protocols (the top 20 most abundant genera).
Brugge, Arne: Contacarium Palaeoslavicum Mosquense
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Exploring the Mass Loss Histories of the Red Supergiants
Creators: name: Humphreys, Roberta M.
name: Helmel, Greta
name: Jones, Terry J.
name: Gordon, Michael S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report mid- to far-infrared imaging and photomety from 7 to 37 microns with SOFIA/FORCAST and 2 micron adaptive optics imaging with LBTI/LMIRCam of a large sample of red supergiants (RSGs) in four Galactic clusters; RSGC1, RSGC2=Stephenson 2, RSGC3, and NGC 7419. The red supergiants in these clusters cover their expected range in luminosity and initial mass from approximately 9 to more than 25 Solar masses. The population includes examples of very late-type RSGs such as MY Cep which may be near the end of the RSG stage, high mass losing maser sources, yellow hypergiants and post-RSG candidates. Many of the stars and almost all of the most luminous have spectral energy distributions (SEDs) with extended infrared excess radiation at the longest wavelengths. To best model their SEDs we use DUSTY with a variable radial density distribution function to estimate their mass loss rates. Our mass loss rate -- luminosity relation for 42 RSGs basically follows the classical de Jager curve, but at luminosities below 10^5 Solar luminosities we find a significant population of red supergiants with mass loss rate below the de Jager relation. At luminosities above 10^5 Solar luminosities there is a rapid transition to higher mass loss rates that approximates and overlaps the de Jager curve. We recommend that instead of using a linear relation or single curve, the empirical mass loss rate -- luminosity relation is better represented by a broad band. Interestingly, the transition to much higher mass loss rates at about 10^5 Lsun corresponds approximately to an initial mass of 18 --20 Msun which is close to the upper limit for RSGs becoming Type II SNe.
description: Accepted for publication in the Astronomical Journal
Nonlinear aeroservoelastic modelling for design and performance evaluation of gust load alleviation systems for flexible air vehicles
Creators: name: Düssler, Stefanie
Publisher: name: Imperial College London
Year: 2024

description: This dissertation addresses the future trend in high aspect-ratio wing designs, which are strongly synergetic with the structural weight savings that can be gained from Gust Load Alleviation systems. Therefore, this research explores modelling capabilities for the design and performance testing of such active control systems in flexible vehicles with geometric nonlinearities and rigid/elastic couplings. The nonlinear aeroelastic simulation toolbox SHARPy is utilized to capture these effects. Enhancements made to SHARPy's nonlinear aeroelastic solver are verified and exercised on a very flexible wind tunnel wing and a representative flexible aircraft configuration. This includes a fuselage model, sectional force corrections, and a wake convection scheme. The gust response prediction capabilities have been compared with experimental data of the very flexible wing, resulting in a good match for steady and dynamic structural deformations. Possible limitations of computational gust models, used in large aircraft certification, are explored for large structural deformations with a gust vane model. Additionally, geometrical nonlinearities are assessed and become apparent for this wing because of the nonlinear aeroelastic equilibrium but not the gust excitation itself. A framework is proposed in which, first, linear and reduced-order models are obtained for a representative aircraft configuration to design a linear quadratic Gaussian controller. Second, the performance of this controller is assessed with SHARPy's nonlinear aeroelastic solver, as linear methods may overlook important complex dynamics introduced by large deformation. The designed controller succeeded in its gust alleviation and stabilization objective. Cost-effective control surface and sensor layouts were identified. A degradation of the control performance due to less aggressive control action was identified with the nonlinear full-order model in closed-loop. This degradation could not be linked to structural nonlinearities but likely to a mismatch between the linear and nonlinear models. The findings in this dissertation underscore the challenges of modelling complex physics for control.
Where are the stars?
Creators: name: Eke, V. R.
name: Baugh, C. M.
name: Cole, S.
name: Frenk, C. S.
name: King, H. M.
name: Peacock, J. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The 2dFGRS is used in conjunction with the 2MASSXSC to study the near-IR light and stellar mass content of the local Universe. Mock galaxy catalogues, constructed from cosmological N-body simulations and semi-analytical galaxy formation models, are used to gauge the accuracy with which quantities can be recovered. The mean luminosity densities of the Universe are found to be rho_J=(3.57+/-0.11)*10^8 h Lsol/Mpc^3 and rho_KS=(7.04+/-0.23)*10^8 h Lsol/Mpc^3 (statistical uncertainty). Using the 2PIGG catalogue, the group dynamical mass-to-light ratio in the K_S band is found to increase by a factor of ~3 when going from groups with total bJ-band luminosities of 3*10^10 h^-2 Lsol to rich clusters, which have typical values of Upsilon_K~80 h Upsilon_sol. Taking into account the bias introduced by uncertainties in estimating galaxy stellar masses from luminosities, a value of Omega_* h=(0.99+/-0.03)*10^-3 is measured, assuming that a Kennicutt stellar IMF is applicable to all galaxies. The 2PIGGs are then used to study the distribution of the stellar content of the local Universe. The three main conclusions are: (1) a slowly rising stellar M/L_KS is found with the clusters having the largest value of ~0.6 Upsilon_sol, (2) in contrast, the fraction of mass in stars decreases with increasing group size, reaching ~5*10^-3 h for the rich clusters, and (3) in answer to the question posed in the title, most stellar mass is contained in Local Group-sized objects (M~2*10^12 h^-1 Msol) with only ~2% in clusters with M>5*10^14 h^-1 Msol.
description: 15 pages, 14 figures (1 colour), submitted to MNRAS
Additional file 2 of Evaluation of fecal DNA extraction protocols for human gut microbiome studies
Creators: name: Lim, Mi Young
name: Park, Yong-Soo
name: Jung-Ha Kim
name: Nam, Young-Do
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2. Alpha diversity (observed ASVs and Pielou’s evenness) of the samples extracted through protocols S, SB, and P. (* P-value
A Statistical Study of Threshold Rotation Rates for the Formation of Disks around Be Stars
Creators: name: Cranmer, Steven R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents a detailed statistical determination of the equatorial rotation rates of classical Be stars. The rapid rotation of Be stars is likely to be linked to the ejection of gas that forms dense circumstellar disks. The physical origins of these disks are not understood, though it is generally believed that the ability to spin up matter into a Keplerian disk depends on how close the stellar rotation speed is to the critical speed at which the centrifugal force cancels gravity. There has been recent disagreement between the traditional idea that Be stars rotate between 50 and 80 percent of their critical speeds and new ideas (inspired by the tendency for gravity darkening to mask rapid rotation at the equator) that their rotation may be very nearly critical. This paper utilizes Monte Carlo forward modeling to simulate distributions of the projected rotation speed (v sin i), taking into account gravity darkening, limb darkening, and observational uncertainties. A chi-squared minimization procedure was used to find the distribution parameters that best reproduce observed v sin i distributions from R. Yudin's database. Early-type (O7e-B2e) Be stars were found to exhibit a roughly uniform spread of intrinsic rotation speed that extends from 40 to 60 percent up to 100 percent of critical. Late-type (B3e-A0e) Be stars exhibit progressively narrower ranges of rotation speed as the effective temperature decreases; the lower limit rises to reach critical rotation for the coolest Be stars. The derived lower limits on equatorial rotation speed represent conservative threshold rotation rates for the onset of the Be phenomenon. The significantly subcritical speeds found for early-type Be stars represent strong constraints on physical models of angular momentum deposition in Be star disks.
description: 36 pages (AASTeX), 11 figures, Ap. J., in press (November 20, 2005)
Tillyard, H. J. W.: The Hymns of the Pentecostarium
Creators: name: Engberding, Hieronymus
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Titanium-decorated carbon nanotubes: a potential high-capacity hydrogen storage medium
Creators: name: Yildirim, T.
name: Ciraci, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a first-principles study, which demonstrates that a single Ti atom coated on a single-walled nanotube (SWNT) binds up to four hydrogen molecules. The first H$_2$ adsorption is dissociative with no energy barrier while other three adsorptions are molecular with significantly elongated H-H bonds. At high Ti coverage we show that a SWNT can strongly adsorb up to 8-wt% hydrogen. The system is quite stable and exhibits associative desorption upon heating, a requirement for reversible storage. These results advance our fundamental understanding of dissociative adsorption of hydrogen in nanostructures and suggest new routes to better storage and catalyst materials.
description: 4.2 pages, 3 figures, submitted PRL on Nov. 2004, accepted in March 2005
Forced Oscillations in Fluid Tori and Quasi-Periodic Oscillations
Creators: name: Lee, William H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The kilo-Hertz Quasi--Periodic Oscillations in X-ray binaries could originate within the accretion flow, and be a signature of non--linear fluid oscillations and mode coupling in strong gravity. The possibility to decipher these systems will impact our knowledge of fundamental parameters such as the neutron star mass, radius, and spin. Thus they offer the possibility to constrain the nuclear equation of state and the rotation parameter of stellar--mass black holes. We review the general properties of these oscillations from a hydrodynamical point of view, when the accretion flow is subject to external perturbations and summarize recent results.
description: Astronomische Nachrichten, in press
Genetic analysis of dyslexia
Creators: name: Tzenova, Jordana
Publisher: name: University of British Columbia
Year: 2009

description: Dyslexia is a complex trait, which manifests as a specific reading and spelling disability that is independent of general intelligence and educational opportunity. A genetic basis for the trait has been clearly established, leading to the identification of eight dyslexia susceptibility loci to date. The aim of this thesis is to gain more insight into the genetic mechanisms underlying dyslexia by looking at variation at a single locus, variation at multiple loci, and by examining a phenotype that is thought to be co-morbid with the trait in a sample of 100 dyslexia families. The results of the first part of the study indicate evidence for linkage of dyslexia to chromosome Ip34-p36. This finding replicates the results from two previous reports, suggesting that a locus in this region may contribute to a significant proportion of dyslexia cases. The results of the second part of the study indicate evidence for the involvement of a multilocus genetic system in dyslexia. Both previously identified dyslexia susceptibility loci that do not have significant single-locus effects on the trait in our sample, and novel candidate gene regions show evidence for gene-interactions and locus heterogeneity. Finally, an examination of handedness genetics in dyslexia families was unable to replicate the findings of a recent genome-wide scan. There was no evidence to suggest that dyslexia susceptibility loci are involved in the genetic component of handedness, however the results implicate a novel region, 6q25.3, in relative hand skill determination.
A four-state magnetic tunnel junction switchable with spin-orbit torques
Creators: name: Das, Shubhankar
name: Zaig, Ariel
name: Schultz, Moty
name: Cardoso, Susana
name: Leitao, Diana C
name: Klein, Lior
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a magnetic tunnel junction (MTJ) where its two ferromagnetic layers are in the form of a single ellipse (SE) and two-crossing ellipses (TCE). The MTJ exhibits four distinct resistance states corresponding to the four remanent states of the TCE structure. Flowing current in an underlying Ta layer generates in the adjacent TCE structure spin-orbit torques which induce field-free switching of the four-state MTJ between all its resistance states. The demonstrated four-state MTJ is an important step towards fabricating multi-level MTJs with numerous resistance states which could be important in various spintronics applications, such as multi-level magnetic random access or neuromorphic memory.
description: 4 pages, 3 figures, This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (Appl. Phys. Lett. 117, 072404 (2020)) and may be found at (https://aip.scitation.org/doi/10.1063/5.0014771)
The Physical and Photometric Properties of High-Redshift Galaxies in Cosmological Hydrodynamic Simulations
Creators: name: Finlator, K.
name: Dave, R.
name: Papovich, C.
name: Hernquist, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the physical and photometric properties of galaxies at z=4 in cosmological hydrodynamic simulations of a lambda-CDM universe. We focus on galaxies satisfying the GOODS "B-dropout" criteria. Our goals are: (1) to study the nature of high-redshift galaxies; (2) to test the simulations against published measurements of high-redshift galaxies; (3) to find relations between photometric measurements by HST/ACS (0.4 -- 1 micron) and Spitzer/IRAC (3.6 -- 8 micron) and the intrinsic physical properties of GOODS "B-dropouts" such as stellar mass, stellar age, dust reddening, and star-formation rate; and (4) to assess how representative the GOODS survey is at this epoch. Our simulations predict that high-redshift galaxies show strong correlations in star formation rate versus stellar mass, and weaker correlations versus environment and age, such that GOODS galaxies are predicted to be the most massive, most rapidly star-forming galaxies at that epoch, living preferentially in dense regions. The simulated rest-frame UV luminosity function (LF) and integrated luminosity density are in broad agreement with observations at z~4. The predicted rest-frame optical (observed 3.6 micron) LF is similar to the rest-frame UV LF, shifted roughly one magnitude brighter. We predict that GOODS detects less than 50% of the total stellar mass density formed in galaxies more massive than 10^8.7 M_sun by z=4, mainly because of brightness limits in the HST/ACS bands. The most rapidly star forming galaxies in our simulations have rates exceeding 1000 M_sun yr^-1, similar to observed sub-mm galaxies. The star formation rates of these galaxies show at most a mild excess (2--3x) over the rates that would be expected for their stellar mass. Whether these bright galaxies would be observable as LBGs depends on the uncertain effects of dust reddening.
description: 27 pages, 15 figures, submitted to ApJ
Radiative Emission Mechanisms of Tidal Disruption Events
Creators: name: Roth, Nathaniel
name: Rossi, Elena M.
name: Krolik, Julian H.
name: Piran, Tsvi
name: Mockler, Brenna
name: Kasen, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We describe how the various outcomes of stellar tidal disruption give rise to observable radiation. We separately consider the cases where gas circularizes rapidly into an accretion disc, as well as the case when shocked debris streams provide the observable emission without having fully circularized. For the rapid circularization case, we describe how outflows, absorption by reprocessing layers, and Comptonization can cause the observed radiation to depart from that of a bare disc, possibly giving rise to the observed optical/UV emission along with soft X-rays from the disc. If, instead, most of the debris follows highly eccentric orbits for a significant time, many properties of the observed optical/UV emission can be explained by the scale of those eccentric orbits and the shocks embedded in the debris flow near orbital apocenter. In this picture, soft X-ray emission at early times results from the smaller amount of debris mass deflected into a compact accretion disc by weak shocks near the stellar pericenter. A general proposal for the near-constancy of the ultraviolet/optical color temperatures is provided, by linking it to incomplete thermalization of radiation in the atmosphere of the emitting region. We also briefly discuss the radio signals from the interaction of unbound debris and jets with the black hole environment.
description: Accepted for publication in Springer Space Science Reviews. Chapter in ISSI review "The Tidal Disruption of Stars by Massive Black Holes" vol. 79
Additional file 1 of Evaluation of fecal DNA extraction protocols for human gut microbiome studies
Creators: name: Lim, Mi Young
name: Park, Yong-Soo
name: Jung-Ha Kim
name: Nam, Young-Do
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. A260/A230 of the DNA samples extracted through protocols S, SB, and P. (** P-value
PROSPECTS FOR CHINA'S AGRICULTURAL FDI INFLOWS: A GRAVITY MODEL APPROACH
Creators: name: Marchant, Mary A.
name: Peng, Xuehua
name: Marchant, Mary A.
name: Peng, Xuehua
Publisher: name: Unknown
Year: 2004
Subjects: Financial Economics

description: This paper attempts to provide insights into the prospects for China's agricultural FDI inflows through a gravity model approach. A panel data over 1994-2001 is used. Determinants of China's agricultural FDI inflows are identified and future levels of China's agricultural FDI inflows from major source countries are evaluated.
Linearized solutions of the Einstein equations within a Bondi-Sachs framework, and implications for boundary conditions in numerical simulations
Creators: name: Bishop, Nigel T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We linearize the Einstein equations when the metric is Bondi-Sachs, when the background is Schwarzschild or Minkowski, and when there is a matter source in the form of a thin shell whose density varies with time and angular position. By performing an eigenfunction decomposition, we reduce the problem to a system of linear ordinary differential equations which we are able to solve. The solutions are relevant to the characteristic formulation of numerical relativity: (a) as exact solutions against which computations of gravitational radiation can be compared; and (b) in formulating boundary conditions on the $r=2M$ Schwarzschild horizon.
description: Revised following referee comments
PUBLIC PERCEPTIONS REGARDING GROWTH OF THE DAIRY INDUSTRY IN ILLINOIS
Creators: name: Rendleman, C. Matthew
name: Peterson, William C.
name: Coe, Livy M.
name: Eberle, Phillip R.
name: Griswold, Kenneth E.
name: Rendleman, C. Matthew
name: Peterson, William C.
name: Coe, Livy M.
name: Eberle, Phillip R.
name: Griswold, Kenneth E.
Publisher: name: Unknown
Year: 2004
Subjects: Livestock Production/Industries

description: Community opposition to dairies has altered location decisions by milk producers. Our objective was to identify residents' perceptions towards dairy by individual and community characteristics. A mail survey of residents of dairy counties and non-dairy counties was conducted. Dairy county residents were more willing to live close to a dairy.
X-ModalNet: A Semi-Supervised Deep Cross-Modal Network for Classification of Remote Sensing Data
Creators: name: Hong, Danfeng
name: Yokoya, Naoto
name: Xia, Gui-Song
name: Chanussot, Jocelyn
name: Zhu, Xiao Xiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper addresses the problem of semi-supervised transfer learning with limited cross-modality data in remote sensing. A large amount of multi-modal earth observation images, such as multispectral imagery (MSI) or synthetic aperture radar (SAR) data, are openly available on a global scale, enabling parsing global urban scenes through remote sensing imagery. However, their ability in identifying materials (pixel-wise classification) remains limited, due to the noisy collection environment and poor discriminative information as well as limited number of well-annotated training images. To this end, we propose a novel cross-modal deep-learning framework, called X-ModalNet, with three well-designed modules: self-adversarial module, interactive learning module, and label propagation module, by learning to transfer more discriminative information from a small-scale hyperspectral image (HSI) into the classification task using a large-scale MSI or SAR data. Significantly, X-ModalNet generalizes well, owing to propagating labels on an updatable graph constructed by high-level features on the top of the network, yielding semi-supervised cross-modality learning. We evaluate X-ModalNet on two multi-modal remote sensing datasets (HSI-MSI and HSI-SAR) and achieve a significant improvement in comparison with several state-of-the-art methods.
Asymptotic perfect fluid dynamics as a consequence of AdS/CFT
Creators: name: Janik, Romuald A.
name: Peschanski, Robi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the dynamics of strongly interacting gauge-theory matter (modelling quark-gluon plasma) in a boost-invariant setting using the AdS/CFT correspondence. Using Fefferman-Graham coordinates and with the help of holographic renormalization, we show that perfect fluid hydrodynamics emerges at large times as the unique nonsingular asymptotic solution of the nonlinear Einstein equations in the bulk. The gravity dual can be interpreted as a black hole moving off in the fifth dimension. Asymptotic solutions different from perfect fluid behaviour can be ruled out by the appearance of curvature singularities in the dual bulk geometry. Subasymptotic deviations from perfect fluid behaviour remain possible within the same framework.
description: 19 pages, 1 figure; v2: free streaming example changed to s=1; conclusions unchanged
Tarchnischwili, Michel: Le grand lectionnaire de l'eglise de Jérusalem
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 46 (1962): Oriens christianus, Band 46
Additional file 1 of Fluid expansion improve ventriculo-arterial coupling in preload-dependent patients: a prospective observational study
Creators: name: Huette, Pierre
name: Abou-Arab, Osama
name: Longrois, Dan
name: Guinot, Pierre-Grégoire
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Additional file 1.
Asymptotic convergence and performance of multi-agent Q-learning dynamics
Creators: name: Hussain, Aamal
Publisher: name: Imperial College London
Year: 2024

description: In this thesis we study the Q-Learning dynamics, a classical model which describes the behaviour of agents who explore their space of actions whilst simultaneously aiming to maximise their rewards. Our goal is to describe the behaviour of Q-Learning in as wide an array of settings as possible, and to understand the factors which contribute towards its convergence. We first show that Q-Learning can converge to a unique stable strategy, called the Quantal Response Equilibrium (QRE), in arbitrary normal form games. Next, we study games where interactions between agents are constrained by a network. We determine a number of sufficient conditions, depending on the game and network structure, which guarantee that agent strategies converge to a unique QRE. Next, we perform a statistical analysis of the dynamics of Q-Learning in network games. Here, we parameterise network games in terms of correlations between agent payoffs and study the average behaviour of the Q-Learning dynamics. We find that the stability of Q-Learning is explicitly dependent only on the network connectivity rather than the total number of agents. We then directly study non-stationary behaviours of Q-Learning. We show that Q-Learning dynamics converges to within a neighbourhood of a QRE in network games. The size of this neighbourhood is controlled by the connectivity of the network, exploration rates and payoff structure. Similarly, we consider competitive network games and show that Q-Learning always converges to a neighbourhood of the unique QRE of a 'nearby' network zero sum game. Finally, we study the payoff performance of Q-Learning dynamics. Here, we present a number of cases which suggest that Q-Learning agents may asymptotically achieve a higher Social Welfare by following a learning dynamic which does not converge to an equilibrium solution..
Heavy Quarkonia Results from CLEO
Creators: name: Seth, Kamal K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The latest experimental results in bottomonium and charmonium spectroscopy from CLEO is presented.
description: 4 pages, 3 figures, Presented at Lattice 2004, The XXII International Symposium on Lattice Field Theory, Fermi National Accelerator Laboratory June 21-26, 2004
Reconstruction of Bandlimited Functions from Space-Time Samples
Creators: name: Ulanovskii, Alexander
name: Zlotnikov, Ilya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 94A12, 94A20

description: For a wide family of even kernels $\{φ_u, u\in I\}$, we describe discrete sets $Λ$ such that every bandlimited signal $f$ can be reconstructed from the space-time samples $\{(f\astφ_u)(λ), λ\inΛ, u\in I\}$.
description: 11 pages
EUROPEAN UNION COTTON DEMAND: AN APPLICATION OF DEMAND SYSTEMS AND PANEL DATA
Creators: name: Lopez, Jose Antonio
name: Malaga, Jaime E.
name: Lopez, Jose Antonio
name: Malaga, Jaime E.
Publisher: name: Unknown
Year: 2004
Subjects: International Relations/Trade

description: A demand system approach incorporating demographic variables is used to estimate the European Union cotton demand parameters. The European Union is the largest cotton importer of the world. Accurate estimation of European demand parameters is critical to evaluate world cotton trends and to realistically simulate future market scenarios. Unlike previous studies, this paper reports a research in which demands of the 15 European Union members are not aggregated. Moreover, unlike available estimations, the study does not use mill consumption data but cotton equivalent consumption at home.