cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized Multi-Task Learning from Substantially Unlabeled Multi-Source Medical Image Data
Creators: name: Haque, Ayaan
name: Imran, Abdullah-Al-Zubaer
name: Wang, Adam
name: Terzopoulos, Demetri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep learning-based models, when trained in a fully-supervised manner, can be effective in performing complex image analysis tasks, although contingent upon the availability of large labeled datasets. Especially in the medical imaging domain, however, expert image annotation is expensive, time-consuming, and prone to variability. Semi-supervised learning from limited quantities of labeled data has shown promise as an alternative. Maximizing knowledge gains from copious unlabeled data benefits semi-supervised learning models. Moreover, learning multiple tasks within the same model further improves its generalizability. We propose MultiMix, a new multi-task learning model that jointly learns disease classification and anatomical segmentation in a semi-supervised manner, while preserving explainability through a novel saliency bridge between the two tasks. Our experiments with varying quantities of multi-source labeled data in the training sets confirm the effectiveness of MultiMix in the simultaneous classification of pneumonia and segmentation of the lungs in chest X-ray images. Moreover, both in-domain and cross-domain evaluations across these tasks further showcase the potential of our model to adapt to challenging generalization scenarios.
description: Accepted for publication at the Journal of Machine Learning for Biomedical Imaging (MELBA) https://www.melba-journal.org/
Dark Matter Time Projection Chamber: Recent R&D Results
Creators: name: Battat, J. B. R.
name: Ahlen, S.
name: Chernicoff, M.
name: Deaconu, C.
name: Dujmic, D.
name: Dushkin, A.
name: Fisher, P.
name: Henderson, S.
name: Inglis, A.
name: Kaboth, A.
name: Kirsch, L.
name: Lopez, J. P.
name: Monroe, J.
name: Ouyang, H.
name: Sciolla, G.
name: Tomita, H.
name: Wellenstein, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Dark Matter Time Projection Chamber collaboration recently reported a dark matter limit obtained with a 10 liter time projection chamber filled with CF4 gas. The 10 liter detector was capable of 2D tracking (perpendicular to the drift direction) and 2D fiducialization, and only used information from two CCD cameras when identifying tracks and rejecting backgrounds. Since that time, the collaboration has explored the potential benefits of photomultiplier tube and electronic charge readout to achieve 3D tracking, and particle identification for background rejection. The latest results of this effort is described here.
description: Proceedings of the 3rd International conference on Directional Detection of Dark Matter (CYGNUS 2011), Aussois, France, 8-10 June 2011
Periodic orbits in the restricted four-body problem with two equal masses
Creators: name: Burgos-García, Jaime
name: Delgado, Joaquín
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The restricted (equilateral) four-body problem consists of three bodies of masses m1, m2 and m3 (called primaries) lying in a Lagrangian configuration of the three-body problem i.e., they remain fixed at the apices of an equilateral triangle in a rotating coordinate system. A massless fourth body moves under the Newtonian gravitational law due to the three primaries, as in the Restricted three-body problem (R3BP), the fourth mass does not affect the motion of the three primaries. In this paper we explore symmetric periodic orbits of the restricted four-body problem (R4BP) for the case of two equal masses where they satisfy approximately the Routh's critical value.
description: We offer an exhaustive study of each family of periodic orbits and the stability of each of them
Health Education Authority National Survey of Activity and Health, 1991
HEANSAH
Creators: name: Activity And Health Research Limited
Publisher: name: UK Data Service
Year: 1995

description: This study is a face to face survey which complements the Allied Dunbar National Fitness Survey (ADNFS) using the same household questionnaire. The purpose of this survey was to boost the sample size from the ADNFS and through sampling on a less clustered basis (without the constraint imposed for the physical appraisal in the ADNFS), to establish a sample that could be analysed at a regional level.
 The Allied Dunbar National Fitness Survey is held in the Archive as SN:3303.
Nonparametric Simulation Extrapolation for Measurement Error Models
Creators: name: Spicker, Dylan
name: Wallace, Michael
name: Yi, Grace
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62G05, 62P10

description: The presence of measurement error is a widespread issue which, when ignored, can render the results of an analysis unreliable. Numerous corrections for the effects of measurement error have been proposed and studied, often under the assumption of a normally distributed, additive measurement error model. One such method is simulation extrapolation, or SIMEX. In many situations observed data are non-symmetric, heavy-tailed, or otherwise highly non-normal. In these settings, correction techniques relying on the assumption of normality are undesirable. We propose an extension to the simulation extrapolation method which is nonparametric in the sense that no specific distributional assumptions are required on the error terms. The technique is implemented when either validation data or replicate measurements are available, and is designed to be immediately accessible for those familiar with simulation extrapolation.
A note on the model selection risk for ANOVA based adaptive forecasting of the EURIBOR swap term structure
Creators: name: Blaskowitz, Oliver
name: Herwatz, Helmut
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2008
Subjects: subject: Model selection
subject: Principal components
subject: Factor analysis
subject: Ex–ante forecasting
subject: EURIBOR swap term structure
subject: Trading strategies
subject: 330 Wirtschaft

description: The paper proposes a data driven adaptive model selection strategy. The selection crite- rion measures economic ex–ante forecasting content by means of trading implied cash flows. Empirical evidence suggests that the proposed strategy is neither exposed to selection bias nor to the risk of choosing excessively poor models from a parameterized class of candidate specifications.
Broadband opto-mechanical phase shifter for photonic integrated circuits
Creators: name: Guo, Xiang
name: Zou, Chang-Ling
name: Ren, Xi-Feng
name: Sun, Fang-Wen
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A broadband opto-mechanical phase shifter for photonic integrated circuits is proposed and numerically investigated. The structure consists of a mode-carrying waveguide and a deformable non-mode-carrying nanostring, which are parallel with each other. Utilizing the optical gradient force between them, the nanostring can be deflected. Thus the effective refractive indices of the waveguide is changed with the deformation, and further causes a phase shift. The phase shift under different geometry sizes, launched powers and boundary conditions are calculated and the dynamical properties as well as the thermal noise's effect are also discussed. It is demonstrated that a $π$ phase shift can be realized with only about 0.64 mW launched power and 50 $μm$ long nanostring. The proposed phase shifter may find potential usage in future investigation of photonic integrated circuits.
Magnetic Proximity-Induced Superconducting Diode Effect and Infinite Magnetoresistance in van der Waals Heterostructure
Creators: name: Yun, Jonginn
name: Son, Suhan
name: Shin, Jeacheol
name: Park, Giung
name: Zhang, Kaixuan
name: Shin, Young Jae
name: Park, Je-Geun
name: Kim, Dohun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report unidirectional charge transport in a $\mathrm{NbSe_2}$ noncentrosymmetric superconductor, which is exchange-coupled with a $\mathrm{CrPS_4}$ van der Waals layered antiferromagnetic insulator. The $\mathrm{NbSe_2/CrPS_4}$ bilayer device exhibits bias-dependent superconducting critical-current variations of up to $16\%$, with the magnetochiral anisotropy reaching $\sim 10^5\mathrm{\ T^{-1}A^{-1}}$. Furthermore, the $\mathrm{CrPS_4/NbSe_2/CrPS_4}$ spin-valve structure exhibits the superconducting diode effect with critical-current variations of up to $40\%$. We also utilize the magnetic proximity effect to induce switching in the superconducting state of the spin-valve structure. It exhibits an infinite magnetoresistance ratio depending on the field sweep direction and magnetization configuration. Our result demonstrates a novel route for enhancing the nonreciprocal response in the weak external field regime ($<50\mathrm{\ mT}$) by exploiting the magnetic proximity effect.
description: 25 pages, 3 figures, 2 supplemental figures
High quality factor single-crystal diamond mechanical resonators
Creators: name: Ovartchaiyapong, P.
name: Pascal, L. M. A.
name: Myers, B. A.
name: Lauria, P.
name: Jayich, A. C. Bleszynski
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Single-crystal diamond is a promising material for MEMs devices because of its low mechanical loss, compatibility with extreme environments, and built-in interface to high-quality spin centers. But its use has largely been limited by challenges in processing and growth. We demonstrate a wafer bonding-based technique to form diamond on insulator, from which we make single-crystal diamond micromechanical resonators with mechanical quality factors as high as 338,000 at room temperature. Variable temperature measurements down to 10 K reveal a nonmonotonic dependence of quality factor on temperature. These resonators enable integration of single-crystal diamond into MEMs technology for classical and quantum applications.
description: 15 pages total, 4 figures, 1 table
Improving Differentially Private SGD via Randomly Sparsified Gradients
Creators: name: Zhu, Junyi
name: Blaschko, Matthew B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Differentially private stochastic gradient descent (DP-SGD) has been widely adopted in deep learning to provide rigorously defined privacy, which requires gradient clipping to bound the maximum norm of individual gradients and additive isotropic Gaussian noise. With analysis of the convergence rate of DP-SGD in a non-convex setting, we identify that randomly sparsifying gradients before clipping and noisification adjusts a trade-off between internal components of the convergence bound and leads to a smaller upper bound when the noise is dominant. Additionally, our theoretical analysis and empirical evaluations show that the trade-off is not trivial but possibly a unique property of DP-SGD, as either canceling noisification or gradient clipping eliminates the trade-off in the bound. This observation is indicative, as it implies DP-SGD has special inherent room for (even simply random) gradient compression. To verify the observation and utilize it, we propose an efficient and lightweight extension using random sparsification (RS) to strengthen DP-SGD. Experiments with various DP-SGD frameworks show that RS can improve performance. Additionally, the produced sparse gradients of RS exhibit advantages in reducing communication cost and strengthening privacy against reconstruction attacks, which are also key problems in private machine learning.
Shoreline oil spill protection and cleanup strategies: southern Beaufort Sea
Creators: name: Worbets, B. W.
Publisher: name: Environmental Design
Year: 1979
Subjects: subject: TD 427 P4 W65 1979 Microfiche
subject: Oil spills - Northwest Territories - Beaufort Sea
subject: Oil pollution of the sea - Northwest Territories - Beaufort Sea

description: Bibliography: p. 48-53.
A Report on the implementation of Indiana's Rivers Preservation Act and the Indiana Natural, scenic and recreational rivers system study for Sugar Creek
Creators: name: Payne, Joe
Publisher: name: Environmental Design
Year: 1978
Subjects: subject: GV 770.4 U5 P39 1978 Microfiche
subject: Sugar Creek, Indiana
subject: Rivers - Indiana - Recreational use
subject: Stream conservation - Indiana

description: Bibliography: p. 104-105.
A Specific Case of Generalized Einstein-aether Theories
Creators: name: Meng, Xin-He
name: Du, Xiao-Long
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: With the dark energy phenomena explored over a decade, in this present work we discuss a specific case of the generalized Einstein-aether theories, in which the modified Friedmann Equation is similar to that in the Dvali-Gabadadze-Porrati (DGP) brane world model. We compute the joint statistic constraints on model parameters in this specific case by using the recent type Ia supernovae (SNe Ia) data, the Cosmic Microwave Background (CMB) shift parameter data, and the Baryonic Acoustic Oscillations (BAOs) data traced by the Sloan Digital Sky Survey (SDSS). Furthermore, we analyze other constrains from the observational Hubble parameter data (OHD). The comparison with the standard cosmological model (cosmological constant $Λ$ Cold Dark Matter ($Λ$CDM) model) is clearly shown; also we comment on the interesting relation between the coupling constant $M$ in this model and the special accelerate scale in the MOdified Newtonian Dynamics (MOND) model initially given by Milgrom with the hope for interpreting the galaxy rotation curves without introducing mysterious dark matter.
description: 6figs,10pps
Dust distribution in circumstellar shells
Creators: name: van Marle, Allard Jan
name: Meliani, Zakaria
name: Keppens, Rony
name: Decin, Leen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present numerical simulations of the hydrodynamical interactions that produce circumstellar shells. These simulations include several scenarios, such as wind-wind interaction and wind-ISM collisions. In our calculations we have taken into account the presence of dust in the stellar wind. Our results show that, while small dust grains tend to be strongly coupled to the gas, large dust grains are only weakly coupled. As a result, the distribution of the large dust grains is not representative of the gas distribution. Combining these results with observations may give us a new way of validating hydrodynamical models of the circumstellar medium.
description: 2 pagers, 2 figures, to appear in the proceedings of: "Planetary nebulae, an Eye to the Future", Tenerife, Spain, July 2011
An inverse problem for a semilinear elliptic equation on conformally transversally anisotropic manifolds
Creators: name: Feizmohammadi, Ali
name: Liimatainen, Tony
name: Lin, Yi-Hsuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Given a conformally transversally anisotropic manifold $(M,g)$, we consider the semilinear elliptic equation $$(-Δ_{g}+V)u+qu^2=0\quad \text{on $M$}.$$ We show that an a priori unknown smooth function $q$ can be uniquely determined from the knowledge of the Dirichlet-to-Neumann map associated to the semilinear elliptic equation. This extends the previously known results of the works [FO20, LLLS21a]. Our proof is based on analyzing higher order linearizations of the semilinear equation with non-vanishing boundary traces and also the study of interactions of two or more products of the so-called Gaussian quasimode solutions to the linearized equation.
description: 39 pages. All comments are welcome
Efficiency and Equilibria in Games of Optimal Derivative Design
Creators: name: Horst, Ulrich
name: Moreno-Bromberg, Santiago
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2010
Subjects: subject: Adverse selection
subject: Nash equilibria
subject: Pareto optimality
subject: risk transfer
subject: socially efficient allocations
subject: tie-breaking rules
subject: 330 Wirtschaft

description: In this paper the problem of optimal derivative design, profit maximization and risk minimization under adverse selection when multiple agencies compete for the business of a continuum of heterogenous agents is studied. In contrast with the principal-agent models that are extended within, here the presence of ties in the agents' best-response correspondences yields discontinuous payoff functions for the agencies. These discontinuities are dealt with via efficient tie-breaking rules. The main results of this paper are a proof of existence of (mixed-strategies) Nash equilibria in the case of profit-maximizing agencies, and of socially efficient allocations when the firms are risk minimizers. It is also shown that in the particular case of the entropic risk measure, there exists an efficient "fix-mix" tie-breaking rule, in which case firms share the whole market over given proportions.
Cosmic ray current-driven turbulence and mean-field dynamo effect
Creators: name: Rogachevskii, Igor
name: Kleeorin, Nathan
name: Brandenburg, Axel
name: Eichler, David
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We show that an alpha effect is driven by the cosmic ray Bell instability exciting left-right asymmetric turbulence. Alfven waves of a preferred polarization have maximally helical motion, because the transverse motion of each mode is parallel to its curl. We show how large-scale Alfven modes, when rendered unstable by cosmic ray streaming, can create new net flux over any finite region, in the direction of the original large-scale field. We perform direct numerical simulations (DNS) of an MHD fluid with a forced cosmic ray current and use the test-field method to determine the alpha effect and the turbulent magnetic diffusivity. As follows from DNS, the dynamics of the instability has the following stages: (i) in the early stage, the small-scale Bell instability that results in a production of small-scale turbulence is excited; (ii) in the intermediate stage, there is formation of larger-scale magnetic structures; (iii) finally, quasi-stationary large-scale turbulence is formed at a growth rate that is comparable to that expected from the dynamo instability, but its amplitude over much longer timescales remains unclear. The results of DNS are in good agreement with the theoretical estimates. It is suggested that this dynamo is what gives weakly magnetized relativistic shocks such as those from gamma ray bursts a macroscopic correlation length. It may also be important for large-scale magnetic field amplification associated with cosmic ray production and diffusive shock acceleration in supernova remnants (SNR) and blast waves from gamma ray bursts. Magnetic field amplification by Bell turbulence in SNR is found to be significant, but it is limited owing to the finite time available to the super-Alfvenicly expanding remnant. The effectiveness of the mechanisms is shown to be dependent on the shock velocity.
description: 19 pages, 15 figures, ApJ, submitted
title: When the Taylor principle isinsufficient
title: A benchmarkfor the fiscal theory of theprice level in a monetaryunion
titleType: Subtitle
Creators: name: Brede, Maria
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2014
Subjects: subject: Fiscal theory
subject: monetary union
subject: policy coordination
subject: indeterminacy
subject: 310 Sammlungen allgemeiner Statistiken
subject: 330 Wirtschaft

description: This paper derives restrictions on monetary and fiscal policies for determinate equilibria in a two-country monetary union with autarkic members. It finds that a central bank following the Taylor principle may not be suffcient for determinacy unless accompanied by one 'active' fiscal authority in the sense of Leeper (1991). Alternatively, both fiscal authorities can be 'active' while the central bank abandons the Taylor principle. The two determinate equilibria have significantly different implications for the transmission of fiscal and monetary shocks and for the fiscal theory of the price level in a monetary union.
Effects of insulation on the thermal behaviour of rigid pavement slabs
Creators: name: LeMoal, Gerald A.
Publisher: name: Engineering
Year: 1971
Subjects: subject: TE 278 L45 1971 Microfilm
subject: Pavements, Concrete
subject: Concrete slabs
subject: Heat - Transmission
subject: Insulating materials

description: Bibliography: p. 138-144.
Correlated Trades and Herd Behavior in the Stock Market
Creators: name: Jurkatis, Simon
name: Kremer, Stephanie
name: Nautz, Dieter
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2012
Subjects: subject: Herd Behavior
subject: Institutional Trading
subject: Correlated Trading
subject: Model Simulation
subject: 310 Sammlungen allgemeiner Statistiken
subject: 330 Wirtschaft

description: Herd behavior is often viewed as a significant threat for the stability and effciency of financial markets. This paper sheds new light on the relevance of herd behavior for observed correlation of trades. We introduce numerical simulations of a herd model to derive theory-guided predictions regarding the impact of various aspects of uncertainty on herding intensity. We test the predictions using a novel data set including all real-time transactions of institutional investors in the German stock market. In light of the model simulations, empirical results strongly suggest that the observed correlation of trades is mainly due to the common reaction of investors to new public information and should not be misinterpreted as herd behavior.
Verbal communication and the developmentally handicapped
Creators: name: McLeod, Margaret Myra
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: LC 4602 M16 1972 Microfilm
subject: Mentally handicapped - Language
subject: Recollection (Psychology)
subject: Developmentally disabled
subject: Oral communication

description: Bibliography: p. 51-52.
Stoke-upon-Trent Parish Listing, 1701
Creators: name: Gatley, D. Alan
Publisher: name: UK Data Service
Year: 1995

description: Prior to the introduction of the national censuses, listings of individuals were drawn up for some communities. One such listing, dated 2nd June 1701, exists for Stoke-upon-Trent. This dataset represents a computer readable version of the listing with each individuals' details typed into nine separate fields. The original document is written in a mixture of English and abbreviated Latin. To simplify the transcription and to make it easier to read, all such entries have been translated into English.
Measuring the benefit fromreducing incomeinequality in terms of GDP
Creators: name: Voigts, Simon
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2016
Subjects: subject: Inequality
subject: Income Distribution
subject: 310 Sammlungen allgemeiner Statistiken
subject: 330 Wirtschaft

description: Given that well-being is a concave function of income, inequality is ineffcient from a utilitarian perspective. This paper proposes a way to express the utilitarian benefit from redistributive reforms in terms of out- put, i.e. as a share of GDP. Three applications are presented: First, in nine European countries under study, a mild increase in government redis- tribution allows for gains in well-being equivalent to 8.9%-20.2% of higher GDP, and 55.8% for the US. Second, in the US, redistributing income in excess of the level at the 99th percentile is as beneficial as a 39.5% GDP-increment. Third, revoking government redistribution in Germany reduces welfare by the same amount as a 25.4% decline in output.
Highly Skilled Immigration to and Emigration from Hong Kong, 1992-1994
Creators: name: Jowett, A. J.
name: Findlay, A. M.
name: Skeldon, R.
Publisher: name: UK Data Service
Year: 1996

description: The aims of the study were:
 1. To apply, extend and adapt a `migration channels framework' to the historically and geographically specific context of Hong Kong emigrants, Hong Kong return migrants and expatriate migration.
 2. To assess the development implications for the Hong Kong labour market in general, and for three industrial sectors in particular (textiles, electronics and toys), of changing processes of highly skilled international labour transfers in the run up to 1997.
A Follow-up study of graduates of the graduate diploma and master's degree programmes in educational administration at the University of Calgary Spring 1964 to Spring 1973
Creators: name: Whitehead, LeRoy E.
Publisher: name: University of Calgary
Year: 1974
Subjects: subject: HD 6278 C34 W48 1974 Microfiche
subject: College graduates - Employment - Canada
subject: Universities and colleges - Alumni

description: Bibliography: p. 97-98.
Companding technique for high dynamic range measurements using gafchromic films
Creators: name: Heuvel, Frank Van den
name: Crijns, Wouter
name: Defraene, Gilles
Publisher: name: arXiv
Year: 2011
Subjects: subject: Medical Physics (physics.med-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We propose a methodology to perform dose measurements using gafchromic films which can span several decades of dose levels. The technique is based on a rescaling approach using different films irradiated at different dose levels. This is combined with a registration protocol correcting positioning and scaling factors for each film.
description: Preprint submitted to Medical Physics, 10 pages, 4 figures, 1 table
Propagation of Coherent States through Conical Intersections
Creators: name: Kammerer, Clotilde Fermanian
name: Gamble, Stephanie
name: Hari, Lysianne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we analyze the propagation of a wave packet through a conical intersection. This question has been addressed for Gaussian wave packets in the 90s by George Hagedorn and we consider here a more general setting. We focus on the case of Schr{ö}dinger equation but our methods are general enough to be adapted to systems presenting codimension 2 crossings and to codimension 3 ones with specific geometric conditions. Our main Theorem gives explicit transition formulas for the profiles when passing through a conical crossing point, including precise computation of the transformation of the phase. Its proof is based on a normal form approach combined with the use of superadiabatic projectors and the analysis of their degeneracy close to the crossing.
title: Bayesian Demographic Modeling and Forecasting
title: An Application to U.S. Mortality
titleType: Subtitle
Creators: name: Reichmuth, Wolfgang
name: Sarferaz, Samad
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2008
Subjects: subject: Demography
subject: FOS: Sociology
subject: Age-specific
subject: Mortality
subject: Lee-Carter
subject: Stochastic
subject: Bayesian
subject: State Space Models
subject: Forecasts
subject: 330 Wirtschaft

description: We present a new way to model age-specific demographic variables with the example of age-specific mortality in the U.S., building on the Lee-Carter approach and extending it in several dimensions. We incorporate covariates and model their dynamics jointly with the latent variables underlying mortality of all age classes. In contrast to previous models, a similar development of adjacent age groups is assured allowing for consistent forecasts. We develop an appropriate Markov Chain Monte Carlo algorithm to estimate the parameters and the latent variables in an efficient one-step procedure. Via the Bayesian approach we are able to asses uncertainty intuitively by constructing error bands for the forecasts. We observe that in particular parameter uncertainty is important for long-run forecasts. This implies that hitherto existing forecasting methods, which ignore certain sources of uncertainty, may yield misleadingly sure predictions. To test the forecast ability of our model we perform in-sample and out-of-sample forecasts up to 2050, revealing that covariates can help to improve the forecasts for particular age classes. A structural analysis of the relationship between age-specific mortality and covariates is conducted in a companion paper.
Survey on National Vocational Qualifications in Engineering, 1994
Creators: name: Senker, P.
Publisher: name: UK Data Service
Year: 1995

description: The principal objectives of the study were to assess:
 awareness and take up of NVQs among engineering companies; the implications of designing qualifications to meet NCVQ requirements; the effects of NVQs on the quality and quantity of training in the engineering industry; the extent to which the NVQ system helps companies to cope with the new training needs which are arising as a consequence of technology and organisational change.
 The terms of reference specified that the study should concentrate on `intermediate engineering skills' i.e. craft, technician and supervisory skills because of the crucial role these skills play in engineering competitiveness.
The Change in Jupiter's Moment of Inertia due to Core Erosion and Planetary Contraction
Creators: name: Helled, Ravit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We explore the change in Jupiter's normalized axial moment of inertia (NMOI) assuming that Jupiter undergoes core erosion. It is found that Jupiter's contraction combined with an erosion of 20 M_Earth from a primordial core of 30 M_Earth can change Jupiter's NMOI over time significantly. It is shown that Jupiter's NMOI could have changed from ~0.235 to ~0.264 throughout its evolution. We find that a NMOI value of ~0.235 as suggested by dynamical models (Ward & Canup, 2006, ApJ, 640, L91) could, in principle, be consistent with Jupiter's primordial internal structure. Low NMOI values, however, persist only for the first ~ 10^6 years of Jupiter's evolution. Re-evaluation of dynamical stability models as well as more sophisticated evolution models of Jupiter with core erosion seem to be required in order to provide more robust estimates for Jupiter's primordial NMOI.
description: to appear in ApJL (11 pages)
Judit Topál, The Southern Cemetery of Matrica (Százhalombatta-Dunafüred)
Creators: name: Schallmayer, Egon
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Judit Topál, The Southern Cemetery of Matrica (Százhalombatta-Dunafüred). Fontes Archaeologici Hungariae. Akadémiai Kiadó, Budapest 1981. 105 Seiten, 4 Textabbildungen, 10 Fototafeln, 72 Tafeln und 1 Kartenbeilage
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 63 Nr. 2 (1985)
Jean D. Dawes und J. R. Magilton, The Cemetery of St Helen-on-the-Walls, Aldwark
Creators: name: Schultz, Michael
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Jean D. Dawes und J. R. Magilton, The Cemetery of St Helen-on-the-Walls, Aldwark. The Archaeology of York. Volume 12: The Medieval Cemeteries. William Sessions Ltd., The Ebor Press, York 1980. 120 Seiten, 31 Abbildungen, 12 Tafeln und 16 Tabellen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 64 Nr. 1 (1986)
Nonparametric Test fora Constant Beta over aFixed Time Interval
Creators: name: Reiß, Markus
name: Todorov, Viktor
name: Tauchen, George
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2014
Subjects: subject: stochastic volatility
subject: nonparametric tests
subject: high-frequency data
subject: time-varying beta
subject: 310 Sammlungen allgemeiner Statistiken
subject: 330 Wirtschaft

description: We derive a nonparametric test for constant (continuous) beta over a fixed interval of time. Continuous beta is defined as the ratio of the continuous covariation between an asset and observable risk factor (e.g., the market return) and the continuous variation of the latter. Our test is based on discrete observations of a bivariate It^o semimartingale with mesh of the observation grid shrinking to zero. We first form a consistent and asymptotically mixed normal estimate of beta using all the observations within the time interval under the null hypothesis that beta is constant. Using it we form an estimate of the residual component of the asset returns that is orthogonal (in martingale sense) to the risk factor. Our test is then based on the distinctive asymptotic behavior, under the null and alternative hypothesis, of the sample covariation between the risk factor and the estimated residual component of the asset returns over blocks with asymptotically shrinking time span. Optimality of the test is considered as well. We document satisfactory finite sample properties of the test on simulated data. In an empirical application based on 10-minute data we analyze the time variation in market betas of four assets over the period 2006-2012. The results suggest that (for likely structural reasons) for one of the assets there is statistically nontrivial variation in market beta even for a period as short as a week. On the other hand, for the rest of the assets in our analysis we find evidence that a window of constant beta of one week to one month is statistically plausible.
The effects of prolonged warm ischaemia and endothelin receptor antagonism in an ex-vivo porcine model of renal transplantation
Creators: name: Shah, Keyur Krishnakant
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: Persistent organ shortage remains a major challenge in organ transplantation. Uncontrolled donation after circulatory death donors provide a large potential source of kidneys but there is reluctance to use them due to prolonged warm ischaemia (WI) and associated poor outcomes. Endothelin-1, a potent vasoconstrictor, is a major contributor to the pathogenesis of ischaemia-reperfusion injury. In the first part of the study, porcine kidneys underwent 15, 60, 90 and 120min (n = 6, 6, 6, 4) warm ischaemia (WI) and 2hrs cold ischaemia followed by reperfusion with autologous blood for 3hrs. In the second part, porcine kidneys underwent 60min WI and 2hrs cold ischaemia followed by reperfusion with 500μg BQ-123, a selective ETA endothelin receptor antagonist (n=6). Renal haemodynamics, function, metabolism, inflammation and injury were analysed. Prolonged WI caused an initial reduction in renal blood flow (RBF), loss of renal function and substantial renal injury but these improved with reperfusion. The urine output (UO), creatinine clearance and fractional excretion of sodium improved significantly in the 15, 60 and 90min groups but not the 120min group. Total UO and creatinine fall were significantly lower in the 90min group than the 60min group. BQ-123 caused an initial increase in RBF and UO but this was not sustained and the total RBF and UO were comparable between the two groups. BQ-123 also resulted in lower levels of urinary NGAL and endothelin-1 but no difference was seen in the other injury parameters.Kidneys can tolerate longer absolute warm ischaemia than is currently accepted. Kidneys recovered after up to 90min of WI, although the kidneys in this group showed significantly lower function than the 60min group. Sixty minutes is recommended as a safe limit of tolerable WI. Despite an initial increase in renal perfusion and function with BQ-123, a significant overall benefit was not seen.
Optical Field Enhancement in Nanoscale Slot Waveguides of Hyperbolic Metamaterials
Creators: name: He, Yingran
name: He, Sailing
name: Yang, Xiaodong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nanoscale slot waveguides of hyperbolic metamaterials are proposed and demonstrated for achieving large optical field enhancement. The dependence of the enhanced electric field within the air slot on waveguide mode coupling and permittivity tensors of hyperbolic metamaterials is analyzed both numerically and analytically. Optical intensity in the metamaterial slot waveguide can be more than 25 times stronger than that in a conventional silicon slot waveguide, due to tight optical mode confinement enabled by the ultrahigh refractive indices supported in hyperbolic metamaterials. The electric field enhancement effects are also verified with the realistic metal-dielectric multilayer waveguide structure.
description: 13 pages, 4 figures
Die Stufe Vinča C im Banat
Creators: name: Draşovean, Florin
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 72 Nr. 2 (1994)
An equivariant neural operator for developing nonlocal tensorial constitutive models
Creators: name: Han, Jiequn
name: Zhou, Xu-Hui
name: Xiao, Heng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Developing robust constitutive models is a fundamental and longstanding problem for accelerating the simulation of complicated physics. Machine learning provides promising tools to construct constitutive models based on various calibration data. In this work, we propose a neural operator to develop nonlocal constitutive models for tensorial quantities through a vector-cloud neural network with equivariance (VCNN-e). The VCNN-e respects all the invariance properties desired by constitutive models, faithfully reflects the region of influence in physics, and is applicable to different spatial resolutions. By design, the model guarantees that the predicted tensor is invariant to the frame translation and ordering (permutation) of the neighboring points. Furthermore, it is equivariant to the frame rotation, i.e., the output tensor co-rotates with the coordinate frame. We evaluate the VCNN-e by using it to emulate the Reynolds stress transport model for turbulent flows, which directly computes the Reynolds stress tensor to close the Reynolds-averaged Navier--Stokes (RANS) equations. The evaluation is performed in two situations: (1) emulating the Reynolds stress model through synthetic data generated from the Reynolds stress transport equations with closure models, and (2) predicting the Reynolds stress by learning from data generated from direct numerical simulations. Such a priori evaluations of the proposed network pave the way for developing and calibrating robust and nonlocal, non-equilibrium closure models for the RANS equations.
Schwarzian derivative, Painlevé XXV-Ermakov equation and Bäcklund transformations
Creators: name: Carillo, Sandra
name: Chichurin, Alexander
name: Filipuk, Galina
name: Zullo, Federico
Publisher: name: arXiv
Year: 2022
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The role of Schwarzian derivative in the study of nonlinear ordinary differential equations is revisited. Solutions and invariances admitted by Painlevé XXV-Ermakov equation, Ermakov equation and third order linear equation in a normal form are shown to be based on solutions of the Schwarzian equation. Starting from the Riccati equation and the second order element of the Riccati chian as the simplest examples of linearizable equations, by introducing a suitable change of variables, it is shown how the Schwarzian derivative represents a key tool in the construction of solutions. Two families of Bäcklund transformations which link the linear and nonlinear equations under investigation are obtained. Some examples with relevant applications are given and discussed.
description: 21 pages
Submillimeter Observations of Dense Clumps in the Infrared Dark Cloud G049.40-00.01
Creators: name: Kang, Miju
name: Choi, Minho
name: Bieging, John H.
name: Rho, Jeonghee
name: Lee, Jeong-Eun
name: Tsai, Chao-Wei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We obtained 350 and 850 micron continuum maps of the infrared dark cloud G049.40-00.01. Twenty-one dense clumps were identified within G049.40-00.01 based on the 350 micron continuum map with an angular resolution of about 9.6". We present submillimeter continuum maps and report physical properties of the clumps. The masses of clumps range from 50 to 600 M_sun. About 70% of the clumps are associated with bright 24 micron emission sources, and they may contain protostars. The most massive two clumps show extended, enhanced 4.5 micron emission indicating vigorous star-forming activity. The clump size-mass distribution suggests that many of them are forming high mass stars. G049.40-00.01 contains numerous objects in various evolutionary stages of star formation, from pre-protostellar clumps to HII regions.
description: 6 pages, 3 figures; accepted for publication in ApJ
Polydipsion Argos. Argos de la fin des palais mycéniens à la Constitution de l’État classique
Creators: name: Kilian-Dirlmeier, Imma
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Polydipsion Argos. Argos de la fin des palais mycéniens à la Constitution de l’État classique. Fribourg (Suisse) 7-9 mai 1987. Études rassemblées par Marcel Pierart. Bulletin de Correspondance Hellénique, Supplement XXII, Paris 1992. ISBN 2-86958-041-X. 324 Seiten und 46 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 73 Nr. 1 (1995)
Private Renting in England, 1990
Creators: name: Censuses, Office Of Population
Publisher: name: UK Data Service
Year: 1996

description: The purpose of the survey is to:
 1) measure changes in the size and compilation of the private rented sector and in rents between 1988 and 1990, that is, after the 1988 Housing Act;
 2) examine the use being made in 1990 of two new types of tenancy, Assured and Assured Shorthold.
Ein Töpferofen im augusteischen Militärlager Lahnau-Waldgirmes, Lahn-Dill-Kreis
Creators: name: Walter, Dörte
name: Wigg, Angelika
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 75 Nr. 1 (1997)
BeyondPlanck X. Bandpass and beam leakage corrections
Creators: name: Svalheim, T. L.
name: Andersen, K. J.
name: Aurlien, R.
name: Banerji, R.
name: Bersanelli, M.
name: Bertocco, S.
name: Brilenkov, M.
name: Carbone, M.
name: Colombo, L. P. L.
name: Eriksen, H. K.
name: Foss, M. K.
name: Franceschet, C.
name: Fuskeland, U.
name: Galeotta, S.
name: Galloway, M.
name: Gerakakis, S.
name: Gjerløw, E.
name: Hensley, B.
name: Herman, D.
name: Iacobellis, M.
name: Ieronymaki, M.
name: Ihle, H. T.
name: Jewell, J. B.
name: Karakci, A.
name: Keihänen, E.
name: Keskitalo, R.
name: Maggio, G.
name: Maino, D.
name: Maris, M.
name: Paradiso, S.
name: Partridge, B.
name: Reinecke, M.
name: Suur-Uski, A. -S.
name: Tavagnacco, D.
name: Thommesen, H.
name: Watts, D. J.
name: Wehus, I. K.
name: Zacchei, A.
name: Zonca, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We discuss the treatment of bandpass and beam leakage corrections in the Bayesian BeyondPlanck CMB analysis pipeline as applied to the Planck LFI measurements. As a preparatory step, we first apply three corrections to the nominal LFI bandpass profiles including removal of a known systematic effect in the ground measuring equipment at 61 GHz; smoothing of standing wave ripples; and edge regularization. The main net impact of these modifications is an overall shift in the 70 GHz bandpass of +0.6 GHz; we argue that any analysis of LFI data products, either from Planck or BeyondPlanck, should use these new bandpasses. In addition, we fit a single free bandpass parameter for each radiometer of the form $Δ_i = Δ_0 + δ_i$, where $Δ_0$ represents an absolute frequency shift per frequency band and $δ_i$ is a relative shift per detector. The absolute correction is only fitted at 30 GHz with a full $χ^2$-based likelihood, resulting in a correction of $Δ_{30}=0.24\pm0.03\,$GHz. The relative corrections are fitted using a spurious map approach, fundamentally similar to the method pioneered by the WMAP team, but without introducing many additional degrees of freedom. All bandpass parameters are sampled using a standard Metropolis sampler within the main BeyondPlanck Gibbs chain, and bandpass uncertainties are thus propagated to all other data products in the analysis. In total, we find that our bandpass model significantly reduces leakage effects. For beam leakage corrections, we adopt the official Planck LFI beam estimates without additional degrees of freedom, and only marginalize over the underlying sky model. We note that this is the first time leakage from beam mismatch has been included for Planck LFI maps.
description: 14 pages, 11 figures, this is part 10 in the BeyondPlanck release. All BeyondPlanck products and software will be released publicly at http://beyondplanck.science. Submitted to A&A
Robert H. Schmidt, Römerzeitliche Gräber aus Südhessen. Untersuchungen zu Brandbestattungen. Die Gräberfelder Roßdorf, Sandgrube, Nieder-Ramstadt, Vogelschneise und das Grab Ober-Ramstadt, Heyerstraße sowie die Villae Rusticae, zu denen sie wohl gehören (alle Kreis Darmstadt-Dieburg)
Creators: name: Ludwig, Renate
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Robert H. Schmidt, Römerzeitliche Gräber aus Südhessen. Untersuchungen zu Brandbestattungen. Die Gräberfelder Roßdorf, Sandgrube, Nieder-Ramstadt, Vogelschneise und das Grab Ober-Ramstadt, Heyerstraße sowie die Villae Rusticae, zu denen sie wohl gehören (alle Kreis Darmstadt-Dieburg). Mit Beiträgen von Manfred Kunter und Hans Ulrich Nuber. Materialien zur Vor- und Frühgeschichte von Hessen, Band 17. Selbstverlag des Landesamtes für Denkmalpflege Hessen, Wiesbaden 1996. Keine ISBN. 2 Teilbände, XIII, 305 Seiten mit 88 Abbildungen und 47 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 77 Nr. 2 (1999)