cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of Distribution Transformers with Variable Load Conditions
Creators: name: I Nyoman Gede Adrama*
name: I Wayan Suriana
name: I Made Asna
Publisher: name: Zenodo
Year: 2024
Subjects: Transformer ,Loss of power,Voltage regulation,Transformation ratio, Transformer optimization, Load power, Electrical distribution system, Load variation.

description: Abstract: Transformers are critical components in the electrical distribution system that function to increase or decrease the electrical voltage as needed. Variable load transformer analysis is an important study to understand the performance and efficiency of transformers under a wide range of operational conditions. Variable loads can affect the efficiency, voltage regulation, operating temperature, and life of the transformer.

The efficiency of a transformer is affected by power losses consisting of copper loss (related to load current) and core loss (related to voltage). Efficiency is usually higher at full load and decreases at low load due to the significant contribution of core loss. In addition, load fluctuations can cause voltage variations on the secondary side, which requires adjustment through a tap changer to maintain voltage stability.

Temperature management is also an important aspect because temperature increases due to high loads can accelerate insulation degradation and reduce the life of transformers. Efficient cooling systems, such as oil or air cooling, are often used to solve this problem. Real-time condition monitoring and preventive maintenance can help in detecting and addressing problems before they become serious.

With a comprehensive analysis involving load studies and operational simulations to predict the performance of transformers under various conditions. This helps in designing better transformers and determining optimal operating strategies to improve the efficiency and reliability of transformers.
Amadiba Indigenous Agroforestry Species Catalogue
Creators: name: Sardeshpande, Mallika
Publisher: name: Zenodo
Year: 2025

description: A Species Catalogue designed for the project Developing capacity for Indigenous Community Agroforestry in the Amadiba area of Eastern Mpondoland. Output 1 of January 2025 for the SADC Great Green Wall Initiative funded by the GEF Small Grants Programme implemented by the United Nations Development Programme (UNDP). The project is a collaboration between the Institute of Natural Resources (INR), Sustaining the Wild Coast (SWC), and Siyasisiza Trust (ST) working together with residents of the Amadiba Coastal Villages in Eastern Mpondoland.

This catalogue presents information on useful indigenous agroforestry species planted as part of the project in the Amadiba area in South Africa. These plant species naturally occur in the area, many of them bear edible fruits and medicinal parts, and all of them have agroforestry uses like providing shade, windbreaks, or wood. This catalogue can be read together with the Plant Care Manuals developed as part of the project, which provide general guidelines on planting, care and monitoring, sustainable use, and propagation.
A Numerical Model for Brownian Particles Fluctuating in Incompressible Fluids
Creators: name: Iwashita, T.
name: Nakayama, Y.
name: Yamamoto, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a numerical method that consistently implements thermal fluctuations and hydrodynamic interactions to the motion of Brownian particles dispersed in incompressible host fluids. In this method, the thermal fluctuations are introduced as random forces acting on the Brownian particles. The hydrodynamic interactions are introduced by directly resolving the fluid motions with the particle motion as a boundary condition to be satisfied. The validity of the method has been examined carefully by comparing the present numerical results with the fluctuation-dissipation theorem whose analytical form is known for dispersions of a single spherical particle. Simulations are then performed for more complicated systems, such as a dispersion composed of many spherical particles and a single polymeric chain in a solvent.
description: 6 pages, 8 figures
Jindřich Dejmek, Československo, jeho sousedé a velmoci ve XX. století (1918 až 1992). Vybrané kapitoly z dějin československé zahraniční politiky.
Creators: name: Bollinger, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Higgs versus Matter in the Heterotic Landscape
Creators: name: Buchmuller, Wilfried
name: Schmidt, Jonas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In supersymmetric extensions of the standard model there is no basic difference between Higgs and matter fields, which leads to the well known problem of potentially large baryon and lepton number violating interactions. Although these unwanted couplings can be forbidden by continuous or discrete global symmetries, a theoretical guiding principle for their choice is missing. We examine this problem for a class of vacua of the heterotic string compactified on an orbifold. As expected, in general there is no difference between Higgs and matter. However, certain vacua happen to possess unbroken matter parity and discrete $R$-symmetries which single out Higgs fields in the low energy effective field theory. We present a method how to identify maximal vacua in which the perturbative contribution to the $μ$-term and the expectation value of the superpotential vanish. Two vacua are studied in detail, one with two pairs of Higgs doublets and one with partial gauge-Higgs unification.
description: 29 pages, 1 figure. Final version to appear in Nucl. Phys. B
Prospects for the NA60+ experiment at the CERN SPS
Creators: name: De Falco, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new heavy-ion experiment on fixed target, NA60+, has been proposed at the CERN SPS for data taking in the next years. Its main goals will be focused on precision studies of thermal dimuons, heavy quark and strangeness production in Pb-Pb collisions at center-of-mass energies ranging from 5 to 17 GeV, which will provide a unique opportunity to investigate the region of the QCD phase diagram at high baryochemical potential ($μ_B \sim 200-400$~MeV). The key points of the NA60+ very broad and ambitious physics program will be described.
Fractional statistics of topological defects in graphene and related structures
Creators: name: Seradjeh, B.
name: Franz, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that fractional charges bound to topological defects in the recently proposed time-reversal-invariant models on honeycomb and square lattices obey fractional statistics. The effective low-energy description is given in terms of a `doubled' level-2 Chern-Simons field theory, which is parity and time-reversal invariant and implies two species of semions (particles with statistical angle pi/2) labeled by a new emergent quantum number that we identify as the fermion axial charge.
description: 4 pages, 1 figure, REVTeX4
Hannes Leidinger, Verena Moritz, Gefangenschaft, Revolution, Heimkehr. Die Bedeutung der Kriegsgefangenenproblematik für die Geschichte des Kommunismus in Mittel- und Osteuropa
Creators: name: Zückert, Martin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Reduction of superintegrable systems: the anisotropic harmonic oscillator
Creators: name: Rodriguez, Miguel A.
name: Tempesta, Piergiulio
name: Winternitz, Pavel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70H06

description: We introduce a new 2N--parametric family of maximally superintegrable systems in N dimensions, obtained as a reduction of an anisotropic harmonic oscillator in a 2N--dimensional configuration space. These systems possess closed bounded orbits and integrals of motion which are polynomial in the momenta. They generalize known examples of superintegrable models in the Euclidean plane.
description: 6 pages. Version accepted in Physical Review E
Wormholes and trumpets: the Schwarzschild spacetime for the moving-puncture generation
Creators: name: Hannam, Mark
name: Husa, Sascha
name: Ohme, Frank
name: Bruegmann, Bernd
name: O'Murchadha, Niall
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We expand upon our previous analysis of numerical moving-puncture simulations of the Schwarzschild spacetime. We present a derivation of the family of analytic stationary 1+log foliations of the Schwarzschild solution, and outline a transformation to isotropic-like coordinates. We discuss in detail the numerical evolution of standard Schwarzschild puncture data, and the new time-independent 1+log data. Finally, we demonstrate that the moving-puncture method can locate the appropriate stationary geometry in a robust manner when a numerical code alternates between two forms of 1+log slicing during a simulation.
description: 19 pages, 22 figures
Die Jagiellonen. Kunst und Kultur einer europäischen Dynastie an der Wende zur Neuzeit
Creators: name: Bues, Almut
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 4 (2003)
Additional file 2 of The effect of spinal manipulative therapy and home stretching exercises on heart rate variability in patients with persistent or recurrent neck pain: a randomized controlled trial
Creators: name: Galaasen Bakken, Anders
name: Eklund, Andreas
name: Hallman, David M.
name: Axén, Iben
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 2. Difference in the regression slope for each time point for intervention and control, control group as reference with all details from the regression model (n = 123) (Adjusted for age, sex, and NRS baseline values).
Vorwort
Creators: name: Manthe, Ulrich
name: Müßig, Ulrike
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 3 (2009): Vorträge der Sektion "Osteuropa" auf dem 37. Deutschen Reichshistorikertag
"Die Russen wollten uns einfach verhungern lassen." Die Tätigkeit der sowjetischen Kommandantur von Königsberg zur Lebensmittelversorgung der deutschen Zivilbevölkerung 1945
Creators: name: Fisch, Bernhard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 3 (2002)
Unravelling Strings at the LHC
Creators: name: Kane, Gordon L.
name: Kumar, Piyush
name: Shao, Jing
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct LHC signature footprints for four semi-realistic string/$M$ theory vacua with an MSSM visible sector. We find that they all give rise to limited regions in LHC signature space, and are qualitatively different from each other for understandable reasons. We also propose a technique in which correlations of LHC signatures can be effectively used to distinguish among these string theory vacua. We expect the technique to be useful for more general string vacua. We argue that further systematic analysis with this approach will allow LHC data to disfavor or exclude major ``corners'' of string/$M$ theory and favor others. The technique can be used with limited integrated luminosity and improved.
description: 34 pages, 16 figures
Lutz Rentzow, Die Entstehungs- und Wirkungsgeschichte der Vernewerten Landesordnung für das Königreich Böhmen von 1627.
Creators: name: Lück, Heiner
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Multi-wavelength spectroscopic probes: prospects for primordial non-Gaussianity and relativistic effects
Creators: name: Viljoen, Jan-Albert
name: Fonseca, José
name: Maartens, Roy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Next-generation cosmological surveys will observe larger cosmic volumes than ever before, enabling us to access information on the primordial Universe, as well as on relativistic effects. We consider forthcoming 21cm intensity mapping surveys (SKAO) and optical galaxy surveys (DESI and Euclid), combining the information via multi-tracer cross-correlations that suppress cosmic variance on ultra-large scales. In order to fully incorporate wide-angle effects and redshift-bin cross-correlations, together with lensing magnification and other relativistic effects, we use the angular power spectra, $C_\ell(z_i,z_j)$. Applying a Fisher analysis, we forecast the expected precision on $f_{\rm NL}$ and the detectability of lensing and other relativistic effects. We find that the full combination of two pairs of 21cm and galaxy surveys, one pair at low redshift and one at high redshift, could deliver $σ(f_{\rm NL})\sim 1.5$, detect the Doppler effect with a signal-to-noise ratio $\sim$8 and measure the lensing convergence contribution at $\sim$2\% precision. In a companion paper, we show that the best-fit values of $f_{\rm NL}$ and of standard cosmological parameters are significantly biased if the lensing contribution neglected.
description: 23 pages, 7 figures, 4 tables. Improved analysis, main results unchanged. Version accepted by JCAP
Fluctuations in the pasta phase
Creators: name: Pelicer, Mateus R.
name: Menezes, Débora P.
name: Barros, Celso C.
name: Gulminelli, Francesca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Baryonic matter close to the saturation density is very likely to present complex inhomogeneous structures collectively known under the name of pasta phase. At finite temperature, the different geometric structures are expected to coexist, with potential consequences on the neutron star crust conductivity and neutrino transport in supernova matter. In the framework of a statistical multi-component approach, we calculate the composition of matter in the pasta phase considering density, proton fraction, and geometry fluctuations. Using a realistic energy functional from relativistic mean field theory and a temperature and isospin dependent surface tension fitted from Thomas-Fermi calculations, we show that different geometries can coexist in a large fraction of the pasta phase, down to temperatures of the order of the crystallization temperature of the neutron star crust. Quantitative estimates of the charge fluctuations are given.
description: 6 pages, 3 figures, 1 table
How the surrounding water changes the electronic and magnetic properties of DNA
Creators: name: Berashevich, Julia
name: Chakraborty, Tapash
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Strong influence of water molecules on the transport and magnetic properties of DNA, observed in this study, opens up real opportunities for application of DNA in molecular electronics. Interaction of the nucleobases with water molecules leads to breaking of some of the $π$ bonds and appearance of unbound pi electrons. These unbound electrons contribute significantly to the charge transfer at room temperature by up to 1000 times, but at low temperature the efficiency of charge transfer is determined by the spin interaction of the two unbound electrons located on the intrastrand nucleobases. The charge exchange between the nucleobases is allowed only when the spins of unbound electrons are antiparallel. Therefore, the conductance of the DNA molecule can be controlled by a magnetic field. That effect has potential applications for developing a nanoscale spintronic device based on the DNA molecule, where efficiency of spin interaction will be determined by the DNA sequence.
Characterizing exoplanetary atmospheres at high resolution with SPIRou: Detection of water on HD 189733 b
Creators: name: Boucher, Anne
name: Darveau-Bernier, Antoine
name: Pelletier, Stefan
name: Lafrenière, David
name: Artigau, Étienne
name: Cook, Neil J.
name: Allart, Romain
name: Radica, Michael
name: Doyon, René
name: Benneke, Björn
name: Arnold, Luc
name: Bonfils, Xavier
name: Bourrier, Vincent
name: Cloutier, Ryan
name: da Silva, João Gomes
name: Deibert, Emily
name: Delfosse, Xavier
name: Donati, Jean-François
name: Ehrenreich, David
name: Figueira, Pedro
name: Forveille, Thierry
name: Fouqué, Pascal
name: Gagné, Jonathan
name: Gaidos, Eric
name: Hébrard, Guillaume
name: Jayawardhana, Ray
name: Klein, Baptiste
name: Lovis, Christophe
name: Martins, Jorge H. C.
name: Martioli, Eder
name: Moutou, Claire
name: Santos, Nuno C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present the first exoplanet atmosphere detection made as part of the SPIRou Legacy Survey, a Large Observing Program of 300 nights exploiting the capabilities of SPIRou, the new near-infrared high-resolution (R ~ 70 000) spectro-polarimeter installed on the Canada-France-Hawaii Telescope (CFHT; 3.6-m). We observed two transits of HD 189733, an extensively studied hot Jupiter that is known to show prominent water vapor absorption in its transmission spectrum. When combining the two transits, we successfully detect the planet's water vapor absorption at 5.9 sigma using a cross-correlation t-test, or with a Delta BIC >10 using a log-likelihood calculation. Using a Bayesian retrieval framework assuming a parametrized T-P profile atmosphere models, we constrain the planet atmosphere parameters, in the region probed by our transmission spectrum, to the following values: VMR[H2O] = -4.4^{+0.4}_{-0.4}, and P_cloud >~ 0.2 bar (grey clouds), both of which are consistent with previous studies of this planet. Our retrieved water volume mixing ratio is slightly sub-solar although, combining it with the previously retrieved super-solar CO abundances from other studies would imply super-solar C/O ratio. We furthermore measure a net blue shift of the planet signal of -4.62^{+0.46}_{-0.44} km s-1, which is somewhat larger than many previous measurements and unlikely to result solely from winds in the planet's atmosphere, although it could possibly be explained by a transit signal dominated by the trailing limb of the planet. This large blue shift is observed in all the different detection/retrieval methods that were performed and in each of the two transits independently.
description: 24 pages, 12 figures; accepted for publication in The Astronomical Journal
Aviel Roshwald, Ethnic Nationalism and the Fall of Empires. Central Europe, Russia and the Middle East 1914-1923
Creators: name: Hirschhausen, Ulrike Von
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 4 (2004)
Additional file 3 of The effect of spinal manipulative therapy and home stretching exercises on heart rate variability in patients with persistent or recurrent neck pain: a randomized controlled trial
Creators: name: Galaasen Bakken, Anders
name: Eklund, Andreas
name: Hallman, David M.
name: Axén, Iben
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 3. Time effect for the total study sample, B indicating the regression line for each time point with all details from the regression model (n = 123).
Miroslav Flodr, Brněnské městské právo. Zakladatelské období (-1359).
Creators: name: Eberhard, Winfried
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Whispering gallery orbits in Sinai oscillator trap
Creators: name: Lerman, Ariel
name: Zharnitsky, Vadim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70Hxx

description: Experimental realizations of trapping Bose Einstein condensate lead to a Hamiltonian system of a classical particle bouncing off a convex scatterer in the field of an attracting potential. It is shown by application of KAM theory that under some natural conditions there exists positive measure of quasiperiodic solutions near the boundary.
description: 11 pages, 4 figures
Ammonia removal from a landfill leachate by biological nitrification and denitrification
Creators: name: Dedhar, Saleem
Publisher: name: University of British Columbia
Year: 2010

description: The discharge of a landfill leachate to a receiving water body can cause a serious pollution problem. One component of leachate that can have a severe impact on a receiving water body is ammonia and its oxidized form, nitrate. This study investigated the biological treatibility of a high ammonia leachate, with specific regard to nitriification and denitrification. A continuous-feed, single sludge denitrification system with recycle was used. Leachate ammonia concentrations of up to 288 mg/L-N were reduced to less than 1 mg/L. The ammonia was removed by nitrification and bacterial uptake. About 25% of the incoming ammonia was taken up by the bacteria in the anoxic reactor; the rest was subsequently nitrified in the aerobic reactor. The nitrates produced in the aerobic reactor were recycled back to the anoxic reactor to undergo denitrification. Glucose was added directly to the anoxic reactor to aid denitrification. The degree of denitrification was dependent on the glucose loading to the anoxic reactor; however, 100% denitrification was achieved on several occasions. The influent leachate COD removal was 20%; however after the addition of glucose to the system, a mean COD removal of 74% was obtained. Of the COD removed across the system, 85% was used in the anoxic reactor for denitrification, and the remaining 15% was used by the heterotrophs in the aerobic reactor. The four metals monitored regularly, zinc, manganese, nickel and iron were removed by the biomass, but not to the same extent During the latter part of the study, the system was first spiked with manganese, and then - zinc, to try and induce an inhibitory effect on the nitrification process. The manganese had no detectable effect on the system. However, total zinc (>95% soluble) levels of between 14.9 and 17.6 mg/L caused substantial inhibition of the nitrification process, resulting in approximately 70 mg/L ammonia in the effluent (feed = 216 mg/L). This inhibition was also evident from the lower percent nitrification values and the unit nitrification rates. This high influent zinc concentration also caused deflocculation, resulting in the loss of significant quantities of biomass with the effluent. The high zinc concentrations also inhibited the denitrifiers, resulting in a decrease in the ammonia uptake, as well as an increase in the COD (used)/Nitrate+Nitrite (NOT) (reduced) ratios in the anoxic reactor. The zinc levels were then lowered to allow the system to return to normal; after this state had been reached, the influent total zinc (>95% soluble) levels were again increased up to 19.5 mg/L. This concentration of zinc did not result in any ammonia appearing in the effluent; thus, it is possible that the bacteria had acclimatized to these high influent zinc concentrations.
Kirche im Dorf. Ihre Bedeutung für die kulturelle Entwicklung der ländlichen Gesellschaft im "Preußenland", 13.-18. Jahrhundert.
Creators: name: Körber, Esther-Beate
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 2 (2003)
A translation of L. Euler's "An easy method for calculating the motion of celestial bodies perturbed in any manner avoiding astronomical computations"
Creators: name: Bistafa, Sylvio R
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: This is a translation from Latin of E348 'Methodus facilis motus corporum coelestium utcunque perturbatos ad rationem calculi astronomici revocandi', in which Euler develops a method to alleviate the astronomical computations in a typical celestial three-body problem represented by Sun, Earth and Moon. In this work, Euler's approach consists of two parts: geometrical and mechanical. The geometrical part contains most of the analytical developments, in which Euler makes use of Cartesian and spherical trigonometry as well - the latter not always in a clear enough way. With few sketches to show the geometrical constructions envisaged by Euler - represented by several geometrical variables -, it is a hard to follow publication. The Translator, on trying to clear the way to the non-specialized reader, used the best of his abilities to add his own figures to the translation. In the latter part of the work, Euler particularizes his developments to the Moon, ending up with eight coupled differential equations for resolving the perturbed motion of this celestial body, which makes his claim of an "easy method" as being rather fallacious. Despite showing great analytical skills, Euler did not give indications on how this system of equations could be solved, which renders his efforts practically useless in the determination of the variations of the nodal line and inclination of the Moon's orbit.
description: 25 pages, 8 figures
Geometric resonance cooling of polarizable particles in an optical waveguide
Creators: name: Szirmai, G.
name: Domokos, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the radiation field of an optical waveguide, the Rayleigh scattering of photons is shown to result in a strongly velocity-dependent force on atoms. The pump field, which is injected in the fundamental branch of the waveguide, is favorably scattered by a moving atom into one of the transversely excited branches of propagating modes. All fields involved are far detuned from any resonances of the atom. For a simple polarizable particle, a linear friction force coefficient comparable to that of cavity cooling can be achieved.
description: 4 pages
A translation of L. Euler's "Simple determination of the orbit of a comet, when it is possible to observe its passage across the ecliptic twice"
Creators: name: Bistafa, Sylvio R
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This is the translation from Latin of E547 'Determinatio facilis orbitae cometae, cuius transitum per eclipticam bis observare licuit', in which Euler addresses the determination of a comet's parabolic orbit, with the Sun at the focus, from two astronomical observations from the earth, when the comet crosses the ecliptic at the ascending and descending nodes. The key point of the calculation is the solution of a fourth degree polynomial, from which the determination of the orbital parameters are determined from one of its roots.
description: 10 pages, 6 figures
Characterizing the velocity field in hydrodynamical simulations of low-mass star formation using spectral line profiles
Creators: name: Brinch, C.
name: Hogerheijde, M. R.
name: Richling, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: When low-mass stars form, the collapsing cloud of gas and dust goes through several stages which are usually characterized by the shape of their spectral energy distributions. Such classification is based on the cloud morphology only and does not address the dynamical state of the object. In this paper we investigate the initial cloud collapse and subsequent disk formation through the dynamical behavior as reflected in the sub-millimeter spectral emission line profiles. If a young stellar object is to be characterized by its dynamical structure it is important to know how accurately information about the velocity field can be extracted and which observables provide the best description of the kinematics. Of particular interest is the transition from infalling envelope to rotating disk, because this provides the initial conditions for the protoplanetary disk, such as mass and size. We use a hydrodynamical model, describing the collapse of a core and formation of a disk, to produce synthetic observables which we compare to calculated line profiles of a simple parameterized model. Because we know the velocity field from the hydrodynamical simulation we can determine in a quantitative way how well our best-fit parameterized velocity field reproduces the original. We use a molecular line excitation and radiation transfer code to produce spectra of both our hydro dynamical simulation as well as our parameterized model. We find that information about the velocity field can reasonably well be derived by fitting a simple model to either single-dish lines or interferometric data, but preferentially by using a combination of the two. Our result shows that it is possible to establish relative ages of a sample of young stellar objects using this method, independently of the details of the hydrodynamical model.
description: 12 pages, 11 figures, accepted for publication in A&A on June 10
Additional file 4 of The effect of spinal manipulative therapy and home stretching exercises on heart rate variability in patients with persistent or recurrent neck pain: a randomized controlled trial
Creators: name: Galaasen Bakken, Anders
name: Eklund, Andreas
name: Hallman, David M.
name: Axén, Iben
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 4. Unadjusted file 4. Difference in the regression slope for each time point for intervention and control, control group as reference (n = 123), unadjusted ln values.
Multi-fluid cosmology in Einstein gravity: analytical solutions
Creators: name: Faraoni, Valerio
name: Jose, Sonia
name: Dussault, Steve
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review analytical solutions of the Einstein equations which are expressed in terms of elementary functions and describe Friedmann-Lemaître-Robertson-Walker universes sourced by multiple (real or effective) perfect fluids with constant equations of state. Effective fluids include spatial curvature, the cosmological constant, and scalar fields. We provide a description with unified notation, explicit and parametric forms of the solutions, and relations between different expressions present in the literature. Interesting solutions from a modern point of view include interacting fluids and scalar fields. Old solutions, integrability conditions, and solution methods keep being rediscovered, which motivates a review with modern eyes.
description: Bibliography expanded and typographical errors corrected. Matches the version to appear in Gen. Relativ. Gravit
Delocalization transition in low energy excitation modes of vector spin glasses
Creators: name: Franz, Silvio
name: Nicoletti, Flavio
name: Parisi, Giorgio
name: Ricci-Tersenghi, Federico
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the energy minima of the fully-connected $m$-components vector spin glass model at zero temperature in an external magnetic field for $m\ge 3$. The model has a zero temperature transition from a paramagnetic phase at high field to a spin glass phase at low field. We study the eigenvalues and eigenvectors of the Hessian in the minima of the Hamiltonian. The spectrum is gapless both in the paramagnetic and in the spin glass phase, with a pseudo-gap behaving as $λ^{m-1}$ in the paramagnetic phase and as $\sqrtλ$ in the spin glass phase. Despite the long-range nature of the model, the eigenstates close to the edge of the spectrum display quasi-localization properties. We show that the paramagnetic to spin glass transition corresponds to delocalization of the edge eigenvectors. We solve the model by the cavity method in the thermodynamic limit. We also perform numerical minimization of the Hamiltonian for $N\le 2048$ and compute the spectral properties, that show very strong corrections to the asymptotic scaling approaching the critical point.
Additional file 5 of The effect of spinal manipulative therapy and home stretching exercises on heart rate variability in patients with persistent or recurrent neck pain: a randomized controlled trial
Creators: name: Galaasen Bakken, Anders
name: Eklund, Andreas
name: Hallman, David M.
name: Axén, Iben
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 5. Home stretching exercises.
Burgwallforschung im akademischen und öffentlichen Diskurs des 20. Jahrhunderts. Wissenschaftsgeschichtliche Tagung der Professur für Ur- und Frühgeschichte der Universität Leipzig, Leipzig 22. – 23. Juni 2007
Creators: name: Mühle, Eduard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
Diplomatie und Zensur. Ein internationaler Aspekt der preußischen Zensurpraxis im Vormärz
Creators: name: Kucharczyk, Grzegorz
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 3 (2002)
Overview of the New Horizons Science Payload
Creators: name: Weaver, H. A.
name: Gibson, W. C.
name: Tapley, M. B.
name: Young, L. A.
name: Stern, S. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The New Horizons mission was launched on 2006 January 19, and the spacecraft is heading for a flyby encounter with the Pluto system in the summer of 2015. The challenges associated with sending a spacecraft to Pluto in less than 10 years and performing an ambitious suite of scientific investigations at such large heliocentric distances (> 32 AU) are formidable and required the development of lightweight, low power, and highly sensitive instruments. This paper provides an overview of the New Horizons science payload, which is comprised of seven instruments. Alice provides spatially resolved ultraviolet spectroscopy. The Ralph instrument has two components: the Multicolor Visible Imaging Camera (MVIC), which performs panchromatic and color imaging, and the Linear Etalon Imaging Spectral Array (LEISA), which provides near-infrared spectroscopic mapping capabilities. The Radio Experiment (REX) is a component of the New Horizons telecommunications system that provides both occultation and radiometry capabilities. The Long Range Reconnaissance Imager (LORRI) provides high sensitivity, high spatial resolution optical imaging capabilities. The Solar Wind at Pluto (SWAP) instrument measures the density and speed of solar wind particles. The Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI) measures energetic protons and CNO ions. The Venetia Burney Student Dust Counter (VB-SDC) is used to record dust particle impacts during the cruise phases of the mission.
description: 17 pages, 4 figures, 1 table; To appear in a special volume of Space Science Reviews on the New Horizons mission
Report on definitions and database setup for the Wind Atlas (Deliverable D4.5)
Creators: name: Badger, Jake
name: Soret, Albert
name: Gottschall, Julia
name: Davis, Neil
name: Witha, Björn
Publisher: name: Zenodo
Year: 2019

description: This report describes the fields and quantities that are to be served by the NEWA. It divides these into two parts, fields given at microscale and fields given at mesoscale. Tables describe in what heights the fields are given and whether the data are time mean or time varying. Because predictability is one of the newer fields to be presented by NEWA the methodologies used and quantities given are described in some detail. The report also outlines considerations given to data flow and data processing. Data handling issues are inherent within the model chain used in the wind atlas, and will be part of subsequent processing of the huge modelling datasets for the future.
Type IIB Flux Vacua from the String Worldsheet
Creators: name: Linch, William D.
name: McOrist, Jock
name: Vallilo, Brenno Carlini
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study type IIB string compactifications in the presence of RR and NSNS fluxes using worldsheet techniques. Vertex operators corresponding to internal RR and NSNS fluxes are constructed in the hybrid formalism with manifest target space supersymmetry. In a simple class of examples, we compute various known physical phenomena such as warping and the generation of a superpotential for complex structure moduli. The results are in precise agreement with the supergravity literature.
description: 29 pages; added references and fixed typo's
Der "Schmutz der Juden" und die "Unsittlichkeit der Weiber". Ein Vergleich der Repräsentationen von Armut in Stadt- und Reisebeschreibungen von Galizien und Berlin (Ende des 18./Mitte des 19. Jahrhunderts)
Creators: name: Hüchtker, Dietlind
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 3 (2002)
Robust Estimation of Heterogeneous Treatment Effects using Electronic Health Record Data
Creators: name: Li, Ruohong
name: Wang, Honglang
name: Tu, Wanzhu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Estimation of heterogeneous treatment effects is an essential component of precision medicine. Model and algorithm-based methods have been developed within the causal inference framework to achieve valid estimation and inference. Existing methods such as the A-learner, R-learner, modified covariates method (with and without efficiency augmentation), inverse propensity score weighting, and augmented inverse propensity score weighting have been proposed mostly under the square error loss function. The performance of these methods in the presence of data irregularity and high dimensionality, such as that encountered in electronic health record (EHR) data analysis, has been less studied. In this research, we describe a general formulation that unifies many of the existing learners through a common score function. The new formulation allows the incorporation of least absolute deviation (LAD) regression and dimension reduction techniques to counter the challenges in EHR data analysis. We show that under a set of mild regularity conditions, the resultant estimator has an asymptotic normal distribution. Within this framework, we proposed two specific estimators for EHR analysis based on weighted LAD with penalties for sparsity and smoothness simultaneously. Our simulation studies show that the proposed methods are more robust to outliers under various circumstances. We use these methods to assess the blood pressure-lowering effects of two commonly used antihypertensive therapies.
description: Statistics in Medicine (2021)
Piezooptic Coefficients and Acoustic Wave Velocities in Sn2P2S6 Crystals
Creators: name: Mys, O.
name: Martynyuk-Lototska, I.
name: Grabar, A.
name: Vysochanskii, Yu.
name: Vlokh, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Piezooptic coefficients of Sn2P2S6 crystals are experimentally determined for l=623.8 nm and T=293 K with the aid of interferometric technique. The components of the elastic stiffness tensor for these crystals are calculated on the basis of studies for the acoustic wave velocities. It is shown that acoustooptic figure of merit can achieve extremely high values for Sn2P2S6 crystals (M2 - 2x10-12s3/kg2).
description: 8 pages, 2 tables, 1 figure
Deutsche Literatur des Mittelalters in Böhmen und über Böhmen. Vorträge der internationalen Tagung, České Budějovice, 8. bis 11. September 1999,
Creators: name: Peters, Jelko
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2002

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 51 Nr. 4 (2002)
Vergessene Literatur. Ungenannte Themen deutscher Schriftstellerinnen.
Creators: name: Kosellek, Gerhard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2003

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 52 Nr. 2 (2003)
Introduction to metadata and its uses
Creators: name: Johnson, Jon
Publisher: name: Zenodo
Year: 2019
Subjects: Metadata
DDI-Lifecycle
DDI

description: The presentation was given to the ESRC Data and Infrastructure team and covers metadata in 2 minutes, concepts and idea, standards, a short introduction to CLOSER Discovery and where metadata sits in the wider research infrastructure landscape
description: ESRC ES/K000357/1
ADVANTAGE AND DISADVANTAGE SIDES OF SOCIAL MEDIA FOR YOUNGSTERS
Creators: name: Abduraxmanova, Malika
name: Akhmedova, Muyassar
Publisher: name: Zenodo
Year: 2025

description: Social media benefits include connection, learning and creativity. Risks include exposure to inappropriate content, cyberbullying, and privacy and data breaches. Written guidelines can help pre-teens and teenagers get benefits while using social media responsibly, respectfully and safely. In this article we explore the advantages and disadvantages of social media for youth.
Reliability of slender reinforced concrete columns
Creators: name: Bhola, Rajendra Kumar
Publisher: name: University of British Columbia
Year: 2010

description: The effects of the variability in strength and loading on the reliability of slender, reinforced concrete columns are investigated using the Monte Carlo simulation technique. The columns are considered to be axially loaded with equal end eccentricities and no lateral load. Variabilities in strength, axial load and eccentricity of axial loads are considered. A new procedure called the Implicit Uncorrelation Procedure has been developed to find the values of the failure function from the values of the basic variables named above. The allowable axial load at various eccentricity levels corresponding to a probability of failure of one in one hundred thousand has been found for three different cross sections. Seven different slenderness ratios are considered for each cross section. The results are compared with those obtained by following the code procedures outlined in CAN3-A23.3-M77 and CSA-A23.3 (1984). A change in the performance factor for moment magnification, ⌀m , (as given in CSA-A23.3 (1984)) is recommended in order to obtain a more accurate and consistent level of reliability in the design of slender reinforced concrete columns.
Spontaneous imbibition in porous media: from pore scale to Darcy scale
Creators: name: Qin, Chao-Zhong
name: Wang, Xin
name: Hefny, Mahmoud
name: Zhao, Jianlin
name: Guo, Bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Spontaneous imbibition has been receiving much attention due to its significance in many subsurface and industrial applications. Unveiling pore-scale wetting dynamics, and particularly its upscaling to the Darcy scale are still unresolved. In this work, we conduct image-based pore-network modeling of cocurrent spontaneous imbibition and the corresponding quasi-static imbibition, in homogeneous sintered glass beads as well as heterogeneous Estaillades. A wide range of viscosity ratios and wettability conditions are taken into account. Based on our pore-scale results, we show the influence of pore-scale heterogeneity on imbibition dynamics and nonwetting entrapment. We elucidate different pore-filling mechanisms in imbibition, which helps us understand wetting dynamics. Most importantly, we develop a non-equilibrium model for relative permeability of the wetting phase, which adequately incorporates wetting dynamics. This is crucial to the final goal of developing a two-phase imbibition model with measurable material properties such as capillary pressure and relative permeability. Finally, we propose some future work on both numerical and experimental verifications of the developed non-equilibrium permeability model.
description: 24 pages, 6 figures, Supplementary with 7 figures
Nonperturbative Instability of AdS_5 x S^5/Z_k
Creators: name: Horowitz, Gary T.
name: Orgera, Jacopo
name: Polchinski, Joe
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the AdS/CFT correspondence with boundary conditions AdS_5 x S^5/Z_k, where the Z_k acts freely but breaks all supersymmetry. While there are closed string tachyons at small 't Hooft coupling, there are no tachyons at large coupling. Nevertheless, we show that there is a nonperturbative instability directly analogous to the decay of the Kaluza-Klein vacuum. We discuss the implications of this instability for the strongly coupled dual field theory, and compare with earlier studies of this theory at weak coupling.
description: 20 pages, 1 figure, v2: minor changes and references added
Stare i nowe w średniowieczu. Pomiędzy innowacją a tradycją
Creators: name: Mühle, Eduard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
An application of the Casoratian technique to the 2D Toda lattice equation
Creators: name: Ma, Wen-Xiu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A general Casoratian formulation is proposed for the 2D Toda lattice equation, which involves coupled eigenfunction systems. Various Casoratian type solutions are generated, through solving the resulting linear conditions and using a Baecklund transformation.
description: 11 pages
เมื่อ.. บัญชีมีบทบาทในการจัดทำรายงานความรับผิดชอบต่อสิ่งแวดล้อมและสังคม
Creators: name: วัชนีพร เศรษฐสักโก
Publisher: name: คณะพาณิชยศาสตร์และการบัญชี มหาวิทยาลัยธรรมศาสตร์
Year: 2014
Subjects: นักบัญชี
บัญชีต้นทุนการไหลของวัสดุ
การจัดทํารายงาน

description: 28 (สิงหาคม 57), 10, วารสารวิชาชีพบัญชี JAP