cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Relativistic hydrodynamics for heavy-ion collisions
Creators: name: Ollitrault, Jean-Yves
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Relativistic hydrodynamics is essential to our current understanding of nucleus-nucleus collisions at ultrarelativistic energies (current experiments at the Relativistic Heavy Ion Collider, forthcoming experiments at the CERN Large Hadron Collider). This is an introduction to relativistic hydrodynamics for graduate students. It includes a detailed derivation of the equations, and a description of the hydrodynamical evolution of a heavy-ion collisions. Some knowledge of thermodynamics and special relativity is assumed.
description: Lectures given at the Advanced School on Quark-Gluon Plasma, Indian Institute of Technology, Bombay, 3-13 July, 2007
The Alma catalog of OB stars. II. A cross-match with Gaia DR2 and an updated map of the solar neighbourhood
Creators: name: González, M. Pantaleoni
name: Apellániz, J. Maíz
name: Barbá, R. H.
name: Reed, B. Cameron
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We cross-match the Alma catalog of OB stars with Gaia DR2 astrometry and photometry as a first step towards producing a clean sample of massive stars in the solar neighbourhood with a high degree of completeness. We analyze the resulting colour-absolute magnitude diagram to divide our sample into categories and compare extinction estimates from two sources, finding problems with both of them. The distances obtained with three different priors are found to have few differences among them, indicating that Gaia DR2 distances are robust. An analysis of the 3-D distribution of massive stars in the solar neighbourhood is presented. We show that a kinematically distinct structure we dub the Cepheus spur extends from the Orion-Cygnus spiral arm towards the Perseus arm and is located above the Galactic mid-plane, likely being related to the recently discovered Radcliffe wave. We propose that this corrugation pattern in the Galactic disk may be responsible for the recent enhanced star formation at its crests and troughs. We also discuss our plans to extend this work in the immediate future.
description: Accepted for publication in MNRAS
Entropic particle transport in periodic channels
Creators: name: Burada, P. S.
name: Schmid, G.
name: Talkner, P.
name: Hänggi, P.
name: Reguera, D.
name: Rubí, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of Brownian motion has widespread applications extending from transport in designed micro-channels up to its prominent role for inducing transport in molecular motors and Brownian motors. Here, Brownian transport is studied in micro-sized, two dimensional periodic channels, exhibiting periodically varying cross sections. The particles in addition are subjected to an external force acting alongside the direction of the longitudinal channel axis. For a fixed channel geometry, the dynamics of the two dimensional problem is characterized by a single dimensionless parameter which is proportional to the ratio of the applied force and the temperature of the particle environment. In such structures entropic effects may play a dominant role. Under certain conditions the two dimensional dynamics can be approximated by an effective one dimensional motion of the particle in the longitudinal direction. The Langevin equation describing this reduced, one dimensional process is of the type of the Fick-Jacobs equation. It contains an entropic potential determined by the varying extension of the eliminated channel direction, and a correction to the diffusion constant that introduces a space dependent diffusion. Different forms of this correction term have been suggested before, which we here compare for a particular class of models. We analyze the regime of validity of the Fick-Jacobs equation, both by means of analytical estimates and the comparisons with numerical results for the full two dimensional stochastic dynamics. For the nonlinear mobility we find a temperature dependence which is opposite to that known for particle transport in periodic potentials. The influence of entropic effects is discussed for both, the nonlinear mobility and the effective diffusion constant.
description: 16 pages, 5 figures,
Detecting atmospheric neutrino oscillations in the ATLAS detector at CERN
Creators: name: Kopp, Joachim
name: Lindner, Manfred
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the possibility to study oscillations of atmospheric neutrinos in the ATLAS experiment at CERN. Due to the large total detector mass, a significant number of events is expected, and during the shutdown phases of the LHC, reconstruction of these events will be possible with very good energy and angular resolutions, and with charge identification. We argue that 500 live days of neutrino running could be achieved, and that a total of ~160 contained ν_μevents and ~360 upward going muons could be collected during this time. Despite the low statistics, the excellent detector resolution will allow for an unambiguous confirmation of atmospheric neutrino oscillations and for measurements of the leading oscillation parameters. Though our detailed simulations show that the sensitivity of ATLAS is worse than that of dedicated neutrino experiments, we demonstrate that more sophisticated detectors, e.g. at the ILC, could be highly competitive with upcoming superbeam experiments, and might even give indications for the mass hierarchy and for the value of theta-13.
description: 8 pages, 4 figures, 2 tables, RevTeX 4; modified treatment of upward going muons, results unchanged; matches published version
Cottage Avenue, 1892
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1892
Subjects: Photographs
Photos
East Hampton
Structures
Dwellings
Girls

description: This image show Cottage Avenue with two girls picking flowers on the side of the road, circa 1892. This image is courtesy of Elizabeth Kelley and this reproduction was collected sometime from 1970 to 1982 as part of the East Hampton’s Heritage Photo Collection.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
INCLUDING Comic Ross & Nate - 02 - online training
Creators: name: INCLUDING
Publisher: name: Zenodo
Year: 2021
Subjects: INNLUDING, H2020, COMIC, Radiation, Nuclear

description: INCLUDING comic with two heroes Ross & Nate who deal with nuclear and radiological challenges and take part in one of the events provided by the INCLUDING Platform. In the second episode ‘Online Training’, Ross & Nate are taking part in an online training using dedicated training application. Ross is a student and Nate is a teacher.
 Check out how Ross managed the accident at a nuclear power plant?
 What did he learn?
 Are you better crisis manager than Ross?
FT-TDR: Frequency-guided Transformer and Top-Down Refinement Network for Blind Face Inpainting
Creators: name: Wang, Junke
name: Chen, Shaoxiang
name: Wu, Zuxuan
name: Jiang, Yu-Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Blind face inpainting refers to the task of reconstructing visual contents without explicitly indicating the corrupted regions in a face image. Inherently, this task faces two challenges: (1) how to detect various mask patterns of different shapes and contents; (2) how to restore visually plausible and pleasing contents in the masked regions. In this paper, we propose a novel two-stage blind face inpainting method named Frequency-guided Transformer and Top-Down Refinement Network (FT-TDR) to tackle these challenges. Specifically, we first use a transformer-based network to detect the corrupted regions to be inpainted as masks by modeling the relation among different patches. We also exploit the frequency modality as complementary information for improved detection results and capture the local contextual incoherence to enhance boundary consistency. Then a top-down refinement network is proposed to hierarchically restore features at different levels and generate contents that are semantically consistent with the unmasked face regions. Extensive experiments demonstrate that our method outperforms current state-of-the-art blind and non-blind face inpainting methods qualitatively and quantitatively.
C. P. B. Jefferys House, East Hampton Star
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 0
Subjects: Photographs
Photos
Historic buildings
East Hampton
Structures
Dwellings

description: This image shows a front exterior view of the C. P. B. Jefferys House known as "Sommariva" located on Jefferys Lane in East Hampton. This image is courtesy of the East Hampton Star and was collected as part of the East Hampton’s Heritage Photo Collection.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
Expansion of nanoplasmas and laser-driven nuclear fusion in single exploding clusters
Creators: name: Peano, F.
name: Martins, J. L.
name: Fonseca, R. A.
name: Peinetti, F.
name: Mulas, R.
name: Coppa, G.
name: Last, I.
name: Jortner, J.
name: Silva, L. O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The expansion of laser-irradiated clusters or nanodroplets depends strongly on the amount of energy delivered to the electrons and can be controlled by using appropriately shaped laser pulses. In this paper, a self-consistent kinetic model is used to analyze the transition from quasineutral, hydrodinamic-like expansion regimes to the Coulomb explosion (CE) regime when increasing the ratio between the thermal energy of the electrons and the electrostatic energy stored in the cluster. It is shown that a suitable double-pump irradiation scheme can produce hybrid expansion regimes, wherein a slow hydrodynamic expansion is followed by a fast CE, leading to ion overtaking and producing multiple ion flows expanding with different velocities. This can be exploited to obtain intracluster fusion reactions in both homonuclear deuterium clusters and heteronuclear deuterium-tritium clusters, as also proved by three-dimensional molecular-dynamics simulations.
description: 9 pages, 3 figures, to appear in Plasma Physics and Controlled Fusion
Graded infinite order jet manifolds
Creators: name: Sardanashvily, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The relevant material on differential calculus on graded infinite order jet manifolds and its cohomology is summarized. This mathematics provides the adequate formulation of Lagrangian theories of even and odd variables on smooth manifolds in terms of the Grassmann-graded variational bicomplex.
description: 30 pages
Exact Exponent of Remainder Term of Gelfond's Digit Theorem in Binary Case
Creators: name: Shevelev, Vladimir
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A63

description: We give a simple formula for the exact exponent in the remainder term of the main Gelfond's digit theorem in the binary case.
description: More autonomous and detailed version with correction misprints
From parcel to continental scale -- A first European crop type map based on Sentinel-1 and LUCAS Copernicus in-situ observations
Creators: name: d'Andrimont, Raphaël
name: Verhegghen, Astrid
name: Lemoine, Guido
name: Kempeneers, Pieter
name: Meroni, Michele
name: van der Velde, Marijn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Detailed parcel-level crop type mapping for the whole European Union (EU) is necessary for the evaluation of agricultural policies. The Copernicus program, and Sentinel-1 (S1) in particular, offers the opportunity to monitor agricultural land at a continental scale and in a timely manner. However, so far the potential of S1 has not been explored at such a scale. Capitalizing on the unique LUCAS 2018 Copernicus in-situ survey, we present the first continental crop type map at 10-m spatial resolution for the EU based on S1A and S1B Synthetic Aperture Radar observations for the year 2018. Random forest classification algorithms are tuned to detect 19 different crop types. We assess the accuracy of this EU crop map with three approaches. First, the accuracy is assessed with independent LUCAS core in-situ observations over the continent. Second, an accuracy assessment is done specifically for main crop types from farmers declarations from 6 EU member countries or regions totaling >3M parcels and 8.21 Mha. Finally, the crop areas derived by classification are compared to the subnational (NUTS 2) area statistics reported by Eurostat. The overall accuracy for the map is reported as 80.3% when grouping main crop classes and 76% when considering all 19 crop type classes separately. Highest accuracies are obtained for rape and turnip rape with user and produced accuracies higher than 96%. The correlation between the remotely sensed estimated and Eurostat reported crop area ranges from 0.93 (potatoes) to 0.99 (rape and turnip rape). Finally, we discuss how the framework presented here can underpin the operational delivery of in-season high-resolution based crop mapping.
description: 19 pages, 11 Figures, 5 Tables (without appendix)
Molecular Spiders with Memory
Creators: name: Antal, Tibor
name: Krapivsky, P. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: Synthetic bio-molecular spiders with "legs" made of single-stranded segments of DNA can move on a surface which is also covered by single-stranded segments of DNA complementary to the leg DNA. In experimental realizations, when a leg detaches from a segment of the surface for the first time it alters that segment, and legs subsequently bound to these altered segments more weakly. Inspired by these experiments we investigate spiders moving along a one-dimensional substrate, whose legs leave newly visited sites at a slower rate than revisited sites. For a random walk (one-leg spider) the slowdown does not effect the long time behavior. For a bipedal spider, however, the slowdown generates an effective bias towards unvisited sites, and the spider behaves similarly to the excited walk. Surprisingly, the slowing down of the spider at new sites increases the diffusion coefficient and accelerates the growth of the number of visited sites.
description: 10 pages, 3 figures
The binding energy produced through the formation of millisecond Pulsars
Creators: name: Taani, Ali
Publisher: name: Zenodo
Year: 2021
Subjects: subject: binding energy
subject: pulsars:
subject: kinematics and dynamics
subject: https://scholar.google.com/citations?hl=en&user=eQB2E9IAAAAJ
subject: https://iaus366.be/?page_id=73

description: We examine the binding energy due to the dynamical process in close binary systems and investigate the possible companion sufficient to induce their orbital parameters. The deterministic of this interaction has a strong sensitivity to the equation of state associated with their initial conditions. This behavior will mimic the usually considered amount of accreted matter (delat M~ 0.2M) and indicates the
 increasing the gravitational mass contribution for the MSP.
Some spectral equivalences between Schrodinger operators
Creators: name: Dunning, C.
name: Hibberd, K. E.
name: Links, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spectral equivalences of the quasi-exactly solvable sectors of two classes of Schrodinger operators are established, using Gaudin-type Bethe ansatz equations. In some instances the results can be extended leading to full isospectrality. In this manner we obtain equivalences between PT-symmetric problems and Hermitian problems. We also find equivalences between some classes of Hermitian operators.
description: 14 pages
Командне лідерство: місія  академічних  бібліотек для  впровадження відкритої науки
Creators: name: Kulyk, Margarita
Publisher: name: Zenodo
Year: 2025
Subjects: групова діяльність
команда
академічні бібліотеки
командне лідерство бібліотечної спільноти
group activity
team
academic libraries
team leadership of the library community

description: Розглядається визначення понять «лідерство»  та «команда». Зазначаються рівні впровадження відкритої науки за допомогою командного лідерства академічних бібліотек. Підкреслена роль самоосвіти як основного інструментарію професійного розвитку представників бібліотечної спільноти як команд для впровадження відкритої науки. У висновку надані пріоритетні напрями впровадження відкритої науки академічними бібліотеками як колективними лідерами, сформованими у команду.
Identifiable Energy-based Representations: An Application to Estimating Heterogeneous Causal Effects
Creators: name: Zhang, Yao
name: Berrevoets, Jeroen
name: van der Schaar, Mihaela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Conditional average treatment effects (CATEs) allow us to understand the effect heterogeneity across a large population of individuals. However, typical CATE learners assume all confounding variables are measured in order for the CATE to be identifiable. This requirement can be satisfied by collecting many variables, at the expense of increased sample complexity for estimating CATEs. To combat this, we propose an energy-based model (EBM) that learns a low-dimensional representation of the variables by employing a noise contrastive loss function. With our EBM we introduce a preprocessing step that alleviates the dimensionality curse for any existing learner developed for estimating CATEs. We prove that our EBM keeps the representations partially identifiable up to some universal constant, as well as having universal approximation capability. These properties enable the representations to converge and keep the CATE estimates consistent. Experiments demonstrate the convergence of the representations, as well as show that estimating CATEs on our representations performs better than on the variables or the representations obtained through other dimensionality reduction methods.
description: 20 pages, 2 figures, 9 tables
INCLUDING Comic Ross & Nate - 01 - Radiation Measurement Training
Creators: name: INCLUDING
Publisher: name: Zenodo
Year: 2020
Subjects: INNLUDING, H2020, COMIC, Radiation, Nuclear

description: INCLUDING comic with two heroes Ross & Nate who deal with nuclear and radiological challenges and take part in one of the events provided by the INCLUDING Platform. In the first episode ‘Radiation Measurement Training’, Nate gets prepared to enter the radiation zone with the anti-radiation sui
Some properties of generalized higher-order convexity
Creators: name: Wasowicz, Szymon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 26A51

description: The generalized divided differences are introduced. They are applied to investigate some properties characterizing generalized higher-order convexity. Among others some support-type property is proved.
Accretion Induced Collapse of White Dwarfs as an Alternative Symbiotic Channel to Millisecond Pulsars
Creators: name: Taani, Ali
Publisher: name: Zenodo
Year: 2021
Subjects: pulsars
white dwarfs,
evolution
kinematics and dynamics.

description: Recently, it has given extra motivation to the unresolved population of millisecond pulsars
 (MSPs) produced from the recycling process. This implies the apparent role of the accretion induced col-
 lapse (AIC) in white dwarfs (WDs) in this issue. We find that the distribution of Nobs;orb closely follows an
 exponential distribution. We determine the best-fit value of the mean Nobs;orb, by fitting our data with an
 exponential distribution for MSP populations. As a result, reaching the Chandrasekhar limit may cause the
 massive WD to explode as a Type Ia supernova (in the case of a CO WD) or to ignite the AIC process (in
 the case of a ONeMg WD; and possibly also in some CO WDs merging) producing peculiar MSP systems.
The Two Dimensional Kondo Model with Rashba Spin-Orbit Coupling
Creators: name: Malecki, Justin
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 investigate the effect that Rashba spin-orbit coupling has on the low energy behaviour of a two dimensional magnetic impurity system. It is shown that the Kondo effect, the screening of the magnetic impurity at temperatures T < T_K, is robust against such spin-orbit coupling, despite the fact that the spin of the conduction electrons is no longer a conserved quantity. A proposal is made for how the spin-orbit coupling may change the value of the Kondo temperature T_K in such systems and the prospects of measuring this change are discussed. We conclude that many of the assumptions made in our analysis invalidate our results as applied to recent experiments in semi-conductor quantum dots but may apply to measurements made with magnetic atoms placed on metallic surfaces.
description: 22 pages, 1 figure; reference updated
Adelic resolution for homology sheaves
Creators: name: Gorchinskiy, Sergey
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: A generalization of the usual ideles group is proposed, namely, we construct certain adelic complexes for sheaves of $K$-groups on schemes. More generally, such complexes are defined for any abelian sheaf on a scheme. We focus on the case when the sheaf is associated to the presheaf of a homology theory with certain natural axioms, satisfied by $K$-theory. In this case it is proven that the adelic complex provides a flasque resolution for the above sheaf and that the natural morphism to the Gersten complex is a quasiisomorphism. The main advantage of the new adelic resolution is that it is contravariant and multiplicative in contrast to the Gersten resolution. In particular, this allows to reprove that the intersection in Chow groups coincides up to sign with the natural product in the corresponding $K$-cohomology groups. Also, we show that the Weil pairing can be expressed as a Massey triple product in $K$-cohomology groups with certain indices.
description: 64 pages
Monte Carlo for top background at the Tevatron
Creators: name: Harel, Amnon
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review the use of Monte Carlo simulation to model backgrounds to top signal at the Tevatron experiments, CDF and D0, as well as the relevant measurements done by the experiments. We'll concentrate on the modeling of W and Z boson production in association with jets, in particular heavy flavor jets, and also comment on the Tevatron experience using matched Monte Carlo.
description: Proceedings of talk given at the International Workshop on Top Quark Physics on May 22, 2008
ปัจจัยเชิงสาเหตุที่มีผลต่อความพร้อมในการเข้าสู่การเป็นพลเมืองอาเซียนของนักศึกษาอาชีวศึกษาระดับประกาศนียบัตรวิชาชีพ (ปวช.) ชั้นปีที่ 3 ในเขตอำเภอเมือง จังหวัดเชียงใหม่
Creators: name: นงนภัส พันธ์พลกฤต
name: ทัศนียา วงศ์จันทร์
Publisher: name: สมาคมนักวิจัย
Year: 2557
Subjects: ปัจจัยเชิงสาเหตุ,ความพร้อมในการเข้าสู่การเป็นพลเมืองอาเซียน,นักษาอาชีวศึกษา

description: 3, 19, วารสารสมาคมนักวิจัย
คุณธรรมของความเป็นครู
Creators: name: อุไรวรรณ ธนสถิตย์
Publisher: name: ศูนย์คุณธรรม (องค์การมหาชน)
Year: 2012
Subjects: คุณธรรมของความเป็นครู

description: 1, 1, วารสารวิชาการคุณธรรมความดี
การพัฒนาคุณธรรมจริยธรรม : จากนโยบายสู่การปฏิบัติ
Creators: name: พรทิพย์ อันทิวโรทัย
Publisher: name: ศูนย์คุณธรรม (องค์การมหาชน)
Year: 2012
Subjects: นโยบาย,การปฏิบัติ,การนำนโยบายสู่การปฏิบัติ

description: 1, 1, วารสารวิชาการคุณธรรมความดี
Relativistic hydrodynamics in the presence of puncture black holes
Creators: name: Faber, Joshua A.
name: Baumgarte, Thomas W.
name: Etienne, Zachariah B.
name: Shapiro, Stuart L.
name: Taniguchi, Keisuke
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Many of the recent numerical simulations of binary black holes in vacuum adopt the moving puncture approach. This successful approach avoids the need to impose numerical excision of the black hole interior and is easy to implement. Here we wish to explore how well the same approach can be applied to moving black hole punctures in the presence of relativistic hydrodynamic matter. First, we evolve single black hole punctures in vacuum to calibrate our BSSN (Baumgarte-Shapiro-Shibata-Nakamura) implementation and to confirm that the numerical solution for the exterior spacetime is invariant to any ``junk'' (i.e., constraint-violating) initial data employed in the black hole interior. Then we focus on relativistic Bondi accretion onto a moving puncture Schwarzschild black hole as a numerical testbed for our high-resolution shock-capturing relativistic hydrodynamics scheme. We find that the hydrodynamical equations can be evolved successfully in the interior without imposing numerical excision. These results help motivate the adoption of the moving puncture approach to treat the binary black hole-neutron star problem using conformal thin-sandwich initial data.
description: 21 pages, 21 figures, RevTex, accepted by PRD; minor updates
The Berry-Tabor conjecture for spin chains of Haldane-Shastry type
Creators: name: Barba, J. C.
name: Finkel, F.
name: Gonzalez-Lopez, A.
name: Rodriguez, M. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: According to a long-standing conjecture of Berry and Tabor, the distribution of the spacings between consecutive levels of a "generic'' integrable model should follow Poisson's law. In contrast, the spacings distribution of chaotic systems typically follows Wigner's law. An important exception to the Berry-Tabor conjecture is the integrable spin chain with long-range interactions introduced by Haldane and Shastry in 1988, whose spacings distribution is neither Poissonian nor of Wigner's type. In this letter we argue that the cumulative spacings distribution of this chain should follow the "square root of a logarithm'' law recently proposed by us as a characteristic feature of all spin chains of Haldane-Shastry type. We also show in detail that the latter law is valid for the rational counterpart of the Haldane-Shastry chain introduced by Polychronakos.
description: LaTeX with revtex4, 6 pages, 6 figures
SuperWASP-N Extra-solar Planet Candidates Between 18hr < RA < 21hr
Creators: name: Street, R. A.
name: Christian, D. J.
name: Clarkson, W. I.
name: Cameron, A. Collier
name: Enoch, B.
name: Kane, S. R.
name: Lister, T. A.
name: West, R. G.
name: Wilson, D. M.
name: Evans, A.
name: Fitzsimmons, A.
name: Haswell, C. A.
name: Hellier, C.
name: Hodgkin, S. T.
name: Horne, K.
name: Irwin, J.
name: Keenan, F. P.
name: Norton, A. J.
name: Osborne, J.
name: Pollacco, D. L.
name: Ryans, R.
name: Skillen, I.
name: Wheatley, P. J.
name: Barnes, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The SuperWASP-I instrument observed 6.7 million stars between 8-15 mag from La Palma during the 2004 May-September season. Our transit-hunting algorithm selected 11,626 objects from the 184,442 stars within the range RA 18hr-21hr. We describe our thorough selection procedure whereby catalogue information is exploited along with careful study of the SuperWASP data to filter out, as far as possible, transit mimics. We have identified 35 candidates which we recommend for follow-up observations.
description: 20 pages, 7 figures, accepted for publication in MNRAS
Fluctuation relations and coarse-graining
Creators: name: Rahav, Saar
name: Jarzynski, Christopher
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the application of fluctuation relations to the dynamics of coarse-grained systems, as might arise in a hypothetical experiment in which a system is monitored with a low-resolution measuring apparatus. We analyze a stochastic, Markovian jump process with a specific structure that lends itself naturally to coarse-graining. A perturbative analysis yields a reduced stochastic jump process that approximates the coarse-grained dynamics of the original system. This leads to a non-trivial fluctuation relation that is approximately satisfied by the coarse-grained dynamics. We illustrate our results by computing the large deviations of a particular stochastic jump process. Our results highlight the possibility that observed deviations from fluctuation relations might be due to the presence of unobserved degrees of freedom.
description: 19 pages, 6 figures, very minor changes
Quantum propagator for some classes of three-dimensional three-body systems
Creators: name: Dutra, A. de Souza
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we solve exactly a class of three-body propagators for the most general quadratic interactions in the coordinates, for arbitrary masses and couplings. This is done both for the constant as the time-dependent couplings and masses, by using the Feynman path integral formalism. Finally the energy spectrum and the eigenfunctions are recovered from the propagators.
description: 16 pages, no figures
An empirical examination : managing mortgage payment risk with options
Creators: name: Arron, Ian Laurie
Publisher: name: University of British Columbia
Year: 2010

description: Canadian real estate investors who use variable rate mortgage financing assume a great deal of risk with regard to the cash flows resulting from the mortgage. These investors may wish to reduce the risk of rising mortgage payments without giving up the opportunity to benefit from lower mortgage payments. The introduction in the U.S. of trading in T-bond futures options and Canadian dollar futures options may allow investors to do this. The hypothesis of this thesis is that a real estate investor using variable rate mortgage financing can use T-bond futures options, possibly in conjunction with Canadian dollar futures options, to effectively hedge against the risk of rising mortgage payments. Chapters 2 and 3 examine the basics about futures and options, respectively. In Chapter 4, the duration based approach to hedging (i.e. risk reduction) with T-bond futures (and options) is explained. The rationale for the use of Canadian dollar futures (and options) is detailed in Chapter 5. Their inclusion in the hedge portfolio is based upon the interest rate parity theorem. A thorough literature review was performed. Chapter 6 contains a summary of the relevant theories exploring reasons why hedging may be beneficial. Empirical studies have been confined to the use of futures, rather than options. These are summarized in Chapter 7.
Feynman Integral Evaluation by a Sector decomposiTion Approach (FIESTA)
Creators: name: Smirnov, A. V.
name: Tentyukov, M. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Up to the moment there are two known algorithms of sector decomposition: an original private algorithm of Binoth and Heinrich and an algorithm made public lastyear by Bogner and Weinzierl. We present a new program performing the sector decomposition and integrating the expression afterwards. The program takes a set of propagators and a set of indices as input and returns the epsilon-expansion of the corresponding integral.
MRF-based Multi-functional Inverter for Safer Electrosurgery
Creators: name: Bao, Congbo
Publisher: name: University of Illinois at Chicago
Year: 2024

description: This thesis proposes, design, and simulate a new high frequency inverter topology that can deliver high-frequency sinusoidal outputs required by electrosurgery. After that, the hardware prototype of the proposed high-frequency inverter is designed, fabricated, and tested with the utilization of gallium nitride. The closed-loop control is implemented on the developed hardware prototype for output voltage and power regulations. The control performance is examined with both resistive load and biotissue load. The cutting effect of achieved cutting mode is verified through both ex-vivo and in-vivo trials. This thesis also investigates real-time power adaptation strategies that are on the basis of different sensing/feedback approaches, such that collateral tissue damage during electrocuting is reduced. Besides the cutting mode, pulsating coagulation mode with closed-loop control for power regulation is delivered and tested with resistive load, resistive plus capacitive load, and ex-vivo biotissue load with the presence of electrical arcing. The safety of pulsating coagulation mode is enhanced with reduced output voltage stress and shrunk terminal leakage current through proposed nonfixed duty cycle strategy. The coagulation effects are further verified by in-vivo trials to explore the possibility of concurrent cutting and coagulation effects.
INCLUDING Newsletter #3
Creators: name: INCLUDING
Publisher: name: Zenodo
Year: 2021
Subjects: H2020, newsletter, RN, nuclear security, joint action, annual workshop, radiological

description: In the 3rd newsletter of the INCLUDING project we present the progress of the project. It gives insight to the project Federation Open Day (21st Sept 2020) and 1st Annual Workshop (8th Oct 2020) as well as to the Joint Actions planned in 2021 >> Joint Action in Mikkeli (Finland) – 19/22 April 2021 >> Joint Action in Palaskas (Greece) - 22/23 June 2021 In this issue you will find also an interesting interview with Dr Franca Padoani, describing the Global Nuclear Security nowadays, the hottest topics and role of education and training in the nuclear security. Dr Franca Padoani - Advisor to the Italian Ministry of Foreign Affairs and International Cooperation on safety, security and non-proliferation; Sous-Sherpa for the 2016 Nuclear Security Summit and attending Nuclear Security Contact Group activities. Member of the G7 Nuclear Safety and Security Group (NSSG) since 2008 and its Chair in 2017. Working at ENEA since 1980, now in charge of the Laboratory for Design and Technical Support for Nuclear Safety, Security and Sustainability.) The release ends with two episodes of the comic series 'Ross & Nate got included'. The newest episode 02 is about the online training and management of the accident at a nuclear power plant.
External Calibrator in Global Signal Experiment for Detection of the Epoch of Reionization
Creators: name: Huang, Yan
name: Wu, Xiang-Ping
name: Guo, Quan
name: Zheng, Qian
name: Li, Biying
name: Shan, Huanyuan
name: Lee, Kejia
name: Xu, Haiguang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a conceptual design study of external calibrators in the 21 cm experiment towards detecting the globally averaged radiation of the epoch of reionization (EoR). Employment of external calibrator instead of internal calibrator commonly used in current EoR experiments allows to remove instrumental effects such as beam pattern, receiver gain and instability of the system if the conventional three-position switch measurements are implemented in a short time interval. Furthermore, in the new design the antenna system is placed in an underground anechoic chamber with an open/closing ceiling to maximally reduce the environmental effect such as RFI and ground radiation/reflection. It appears that three of the four external calibrators proposed in this paper, including two indoor artificial transmitters and one outdoor celestial radiation (the Galactic polarization), fail to meet our purpose. Diurnal motion of the Galactic diffuse emission turns to be the most possible source as an external calibrator, for which we have discussed the observational strategy and the algorithm of extracting the EoR signal.
description: 13 pages, 4 figures, accepted for publication in Research in Astronomy and Astrophysics (RAA)
Optical gaps, mode patterns and dipole radiation in two-dimensional aperiodic photonic structures
Creators: name: Boriskina, Svetlana V.
name: Gopinath, Ashwin
name: Negro, Luca Dal
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Based on the rigorous generalized Mie theory solution of Maxwell's equations for dielectric cylinders we theoretically investigate the optical properties of two-dimensional deterministic structures based on the Fibonacci, Thue-Morse and Rudin-Shapiro aperiodic sequences. In particular, we investigate band-gap formation and mode localization properties in aperiodic photonic structures based on the accurate calculation of their Local Density of States (LDOS). In addition, we explore the potential of photonic structures based on aperiodic order for the engineering of radiative rates and emission patterns in Erbium-doped silicon-rich nitride photonic structures.
description: 4 pages with 5 figures (to appear in Physica E, 40, 2008)
Out of flask, outcrossed, and out of danger: ensuring the survival of Dendrophylax fawcettii, Grand Cayman’s endemic ghost orchid.
Creators: name: Rose-Smyth, Christine
Publisher: name: figshare
Year: 2021
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Video presentation at 23rd World Orchid Conference of conservation of the Grand Cayman endemic ghost orchid, Dendrophylax fawcettii. Reports on development of a complete flask-to-wild-reintroduction methodology for a sustainable source of genetically diverse plants for ex situ conservation, ecological restoration, and potentially, the reduction of poaching. Delivered at virtual WOC 23-26 April 2021.
Common Data Elements for COVID-19 Neuroimaging: A GCS-NeuroCOVID Proposal
Creators: name: Edlow, Brian L.
name: Boly, Melanie
name: Chou, Sherry H-Y.
name: Fischer, David
name: Kondziella, Daniel
name: Li, Lucia M.
name: Mac Donald, Christine L.
name: McNett, Molly
name: Newcombe, Virginia F.J.
name: Stevens, Robert D.
name: Menon, David K.
Publisher: name: Zenodo
Year: 2020
Subjects: COVID-19
neuroimaging
common data elements
MRI
CT
PET

description: To advance knowledge about neurological disorders in patients with coronavirus disease 2019 (COVID-19), the Global Consortium Study of Neurological Dysfunction in COVID-19 (GCS-NeuroCOVID) convened a work group to create common data elements (CDEs) for neuroimaging studies of adult patients with COVID-19. Here, we release version 1.0 of the proposed neuroimaging CDEs for patients with COVID-19 as a set of six Case Report Forms (CRFs). For each CRF, we created an abbreviated version that contains core CDEs and a comprehensive version that contains core and supplemental CDEs.
description: If you use these case report forms, please kindly cite this manuscript: Edlow BL, Boly M, Chou SHY, Fischer D, Kondziella D, Li LM, Mac Donald CL, McNett M, Newcombe VFJ, Stevens RD, Menon DK and GCS-NeuroCOVID. Common data elements for COVID-19 neuroimaging: A GCS-NeuroCOVID proposal. Neurocritical Care. 2021; https://doi.org/10.1007/s12028-021-01192-6.
description: {"references": ["Edlow BL, Boly M, Chou SHY, Fischer D, Kondziella D, Li LM, Mac Donald CL, McNett M, Newcombe VFJ, Stevens RD, Menon DK and GCS-NeuroCOVID. Common data elements for COVID-19 neuroimaging: A GCS-NeuroCOVID proposal. Neurocritical Care. 2021; https://doi.org/10.1007/s12028-021-01192-6."]}
On the early stages of precipitation during direct ageing of Alloy 718
Creators: name: Theska, F.
name: Nomoto, K.
name: Godor, F.
name: Oberwinkler, B.
name: Stanojevic, A.
name: Ringer, S. P.
name: Primig, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Ni-based superalloy Alloy 718 is used in aircraft engines as high-pressure turbine discs and must endure challenging demands on high-temperature yield strength, creep-, and oxidation-resistance. Nanoscale $γ^{\prime}$- and $γ^{\prime \prime}$-precipitates commonly found in duplet and triplet co-precipitate morphologies provide high-temperature strength under these harsh operating conditions. Direct ageing of Alloy 718 is an attractive alternative manufacturing route known to increase the yield strength at 650 $^°$C by at least +10 $\%$, by both retaining high dislocation densities and changing the nanoscale co-precipitate morphology. However, the detailed nucleation and growth mechanisms of the duplet and triplet co-precipitate morphologies of $γ^{\prime}$ and $γ^{\prime \prime}$ during the direct ageing process remain unknown. We provide a correlative high-resolution microscopy approach using transmission electron microscopy, high-angle annular dark-field imaging, and atom probe microscopy to reveal the early stages of precipitation during direct ageing of Alloy 718. Quantitative stereological analyses of the $γ^{\prime}$- and $γ^{\prime \prime}$-precipitate dispersions as well as their chemical compositions have allowed us to propose a qualitative model of the microstructural evolution. It is shown that fine $γ^{\prime}$- and $γ^{\prime \prime}$-precipitates nucleate homogeneously and grow coherently. However, $γ^{\prime \prime}$-precipitates also nucleate heterogeneously on dislocations and experience accelerated growth due to Nb pipe diffusion. Moreover, the co-precipitation reactions are largely influenced by solute availability and the potential for enrichment of Nb and rejection of Al+Ti.
description: Preprint, 35 pages, 12 Figures
Disc wind in the HH 30 binary models
Creators: name: Tambovtseva, L. V.
name: Grinin, V. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent interferometric observations of the young stellar object(YSO) HH 30 have revealed a low velocity outflow in the $^{12}$CO J=1-2 molecule line (Pety et al. 2006). We present here two models of the low velocity disc winds with the aim of investigating an origin of this molecular outflow. Following Andlada et al. (2006) we treated HH 30 as a binary system. Two cases have been considered: i) the orbital period $P$ = 53 yrs and ii) $P \le$ 1 yr. Calculations showed that in the first case the outflow cone had a spiral-like structure due to summing the velocities of the orbital motion and the disc wind. Such a structure contradicts the observations. In the second case, the outflow cone demonstrates a symmetry relatively to the system axis and agrees well with the observations.
description: 5 pages, 4 figures. accepted by Mon. Not. R. Astron. Soc
Spin dynamics in the Kitaev model with disorder: Quantum Monte Carlo study of dynamical spin structure factor, magnetic susceptibility, and NMR relaxation rate
Creators: name: Nasu, Joji
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the impact of two types of disorder, bond randomness and site dilution, on the spin dynamics in the Kitaev model on a honeycomb lattice. The ground state of this model is a canonical quantum spin liquid with spin fractionalization into two types of quasiparticles, itinerant Majorana fermions and localized fluxes. Using unbiased quantum Monte Carlo simulations, we calculate the temperature evolution of the dynamical spin structure factor, the magnetic susceptibility, and the NMR relaxation rate. In the dynamical spin structure factor, we find that the two types of disorder affect seriously the low-energy peak dominantly originating from the flux excitations, rather than the high-energy continuum from the Majorana excitations, in a different way: The bond randomness softens the peak to the lower energy with broadening, whereas the site dilution smears the peak and in addition develops the other sharp peaks inside the spin gap including the zero energy. We show that the zero-energy spin excitations, which originate from the Majorana zero modes induced around the site vacancies, survive up to the temperature comparable to the energy scale of the Kitaev interaction. For the bond randomness, the low-temperature susceptibility does not show any qualitative change against the weak disorder, but it changes to divergent behavior while increasing the strength of disorder. Similar distinct behaviors for the weak and strong disorder are observed also in the NMR relaxation rate; an exponential decay changes into a power-law decay. In contrast, for the site dilution, we find no such crossover; divergent behavior in the susceptibility and a power-law decay in the NMR relaxation rate appear immediately with the introduction of the site dilution. We discuss the relevance of our results to experiments for the Kitaev candidate materials with disorders.
description: 18 pages, 11 figures
Strange electrical transport: Colossal magnetoresistance via avoiding fully polarized magnetization in ferrimagnetic insulator Mn3Si2Te6
Creators: name: Ni, Yifei
name: Zhao, Hengdi
name: Zhang, Yu
name: Hu, Bing
name: Kimchi, Itamar
name: Cao, Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Colossal magnetoresistance is of great fundamental and technological significance and exists mostly in the manganites and a few other materials. Here we report colossal magnetoresistance that is starkly different from that in all other materials. The stoichiometric Mn3Si2Te6 is an insulator featuring a ferrimagnetic transition at 78 K. The resistivity drops by 7 orders of magnitude with an applied magnetic field above 9 Tesla, leading to an insulator-metal transition at up to 130 K. However, the colossal magnetoresistance occurs only when the magnetic field is applied along the magnetic hard axis and is surprisingly absent when the magnetic field is applied along the magnetic easy axis where magnetization is fully saturated. The anisotropy field separating the easy and hard axes is 13 Tesla, unexpected for the Mn ions with nominally negligible orbital momentum and spin-orbit interactions. Double exchange and Jahn-Teller distortions that drive the hole-doped manganites do not exist in Mn3Si2Te6. The phenomena fit no existing models, suggesting a unique, intriguing type of electrical transport.
description: 5 figures