cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Converting the ANU 2.3 telescope to fully automated operation
Creators: name: Price, Ian
name: Nielsen, Jon
name: Lidman, Chris
name: Soon, Jamie
name: Travouillon, Tony
name: Sharp, Rob
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The operation of the ANU 2.3m telescope transitioned from classically scheduled remote observing to fully autonomous queue scheduled observing in March 2023. The instrument currently supported is WiFeS, a visible-light low-resolution image-slicing integral field spectrograph with a 25''x 38'' field of view (offering precision spectrophotometry free from aperture effects). It is highly suitable for rapid spectroscopic follow-up of astronomical transient events and regular cadence observations. The new control system implements flexible queue scheduling and supports rapid response override for Target-of-Opportunity observations. The ANU 2.3m is the largest optical telescope to have been retro-fitted for autonomous operation to date, and it remains a national facility servicing a broad range of science cases. We present an overview of the automated control system and report on the first six months of continuous operation.
description: 6 pages, 5 figures; published in PASA
Investigation on the $Ω(2012)$ from QCD sum rules
Creators: name: Su, Niu
name: Chen, Hua-Xing
name: Gubler, Philipp
name: Hosaka, Atsushi
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the recently observed $Ω(2012)$ baryon using QCD sum rules. By constructing $P$-wave $Ω$ baryon currents and performing spin projection and parity projection, we obtain the masses of the $J^P = 1/2^-$ and $3/2^-$ states as $M_{1/2^-} = 2.07^{+0.07}_{-0.07}{\rm~GeV}$ and $M_{3/2^-} = 2.05^{+0.09}_{-0.10}{\rm~GeV}$ in good agreement with experiment. This suggests that $Ω(2012)$ is likely to be a negative parity $P$-wave excited state, though its spin remains undetermined and requires further study of its decay properties.
description: 5 pages, 2 figures, 1 table. Proceedings article for QCD24: 27th Hih-Energy Physics International Conference in Quantum Chromodynamis
Die Emotionalisierung regionaler/nationaler Marken im TV-Werbespot
Creators: name: Keller, Mario
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2019

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 30 Nr. 1 (2019): Produzieren/Konsumieren – Prosumieren/Konduzieren
Incomplete noise-induced synchronization of spatially extended systems
Creators: name: Hramov, Alexander E.
name: Koronovskii, Alexey A.
name: Popov, Pavel V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A new type of noise-induced synchronous behavior is described. This phenomenon, called incomplete noise-induced synchronization, arises for one-dimensional Ginzburg-Landau equations driven by common noise. The mechanisms resulting in the incomplete noise-induced synchronization in the spatially extended systems are revealed analytically. The different model noise are considered. A very good agreement between the theoretical results and the numerically calculated data is shown.
description: 16 pages, 9 figyres
Understanding Young People’s Help-giving Actions Towards a Peer Experiencing or Developing a Mental Health Problem
Creators: name: Subasinghe, Aruni
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 420313
subject: Mental health services

description: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Psychology and Public Health, La Trobe University, Victoria, Australia.
Agroforestry and Simplification of the CAP
Creators: name: Lawson, Gerry
name: Muraru, Constantin
Publisher: name: Zenodo
Year: 2015

description: Policy Briefing #70 v2 considers the impact of the removal of the GAEC8 landscape feature area targets by the 14/5/24 CAP Simplification Regulation (2024/1468).  In principle, the replacement of the “stick” approach in the original GAEC8, with the “carrot” of additional eco-scheme funding was commendable.  However, broad-brush country-level statistics (R.34, R14.4, I.21) cannot demonstrate that the carrot is working.  The principle of “collect data once but use many times” could demonstrate an effect, but cannot happen until MS follow the guidance of the Strategic Dialogue for Agriculture and  “prioritise and work towards a transparent data governance model with clear rules on data ownership, interoperability and ethical use”.  

Almost 20 years after entry into force of the EU INSPIRE Directive (2007/2/EC), many Member States or regions are still withholding access to IACS parcel-level data on policy measures and indicators.  This geospatial data is needed to prove the effectiveness, or not, of specific interventions. The carrot of small eco-scheme payments for woody landscape features is unlikely to be sufficient at a time when some MS still refer to landscape feature trees as “unproductive” and prohibit farmers from feeding their branches to livestock! 

Alternative sources of finance are crucial and the role of productive woody landscape features in carbon-farming will soon become vital for farmers throughout Europe, especially when combined with price-premia for their biodiversity benefits. This optimistic future should be possible with a new, data-driven, and low-bureaucracy approach to CAP simplification.

EURAF has submitted a proposal to DGAGRI showing how CAP ecoschemes, investment measures and agri-environment measures can be combined and simplified as a "starter pack" to help establish a voluntarily-certified agroforestry carbon farming scheme in all Member States.

The final section gives a list of 19 conclusions and recommendations related to simplification of the CAP and related legislation.

(links in the preview version of the document  may now work .. in which case download the PDF)
Intrinsic properties of quantum systems
Creators: name: Hajicek, P.
name: Tolar, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new realist interpretation of quantum mechanics is introduced. Quantum systems are shown to have two kinds of properties: the usual ones described by values of quantum observables, which are called extrinsic, and those that can be attributed to individual quantum systems without violating standard quantum mechanics, which are called intrinsic. The intrinsic properties are classified into structural and conditional. A systematic and self-consistent account is given. Much more statements become meaningful than any version of Copenhagen interpretation would allow. A new approach to classical properties, quantum cosmology and measurement problem is suggested. A quantum definition of classical states is proposed.
description: 25 pages, no figure. Changes: More discussion on the relation of the paper to work of others + three references added
Agroforestry and Simplification of the CAP
Creators: name: Lawson, Gerry
name: Muraru, Constantin
Publisher: name: Zenodo
Year: 2025

description: Policy Briefing #70 v1 considers the impact of the removal of the GAEC8 landscape feature area targets by the 14/5/24 CAP Simplification Regulation (2024/1468).  In principle, the replacement of the “stick” approach in the original GAEC8, with the “carrot” of additional eco-scheme funding was commendable.  However, broad-brush country-level statistics (R.34, R14.4, I.21) cannot demonstrate that the carrot is working.  The principle of “collect data once but use many times” could demonstrate an effect, but cannot happen until MS follow the guidance of the Strategic Dialogue for Agriculture and  “prioritise and work towards a transparent data governance model with clear rules on data ownership, interoperability and ethical use”.  

Almost 20 years after entry into force of the EU INSPIRE Directive (2007/2/EC), many Member States or regions are still withholding access to IACS parcel-level data on policy measures and indicators.  This geospatial data is needed to prove the effectiveness, or not, of specific interventions. The carrot of small eco-scheme payments for woody landscape features is unlikely to be sufficient at a time when some MS still refer to landscape feature trees as “unproductive” and prohibit farmers from feeding their branches to livestock! 

Alternative sources of finance are crucial and the role of productive woody landscape features in carbon-farming will soon become vital for farmers throughout Europe, especially when combined with price-premia for their biodiversity benefits.  This optimistic future should be possible with a new, data-driven, and low-bureaucracy approach to CAP simplification.

(links in the preview version of the document  may now work .. in which case download the PDF)
title: Roman Rural Landscapes in Noricum
title: Archäologische Untersuchungen zur römischen Besiedlung im Hinterland Nord-Noricums
titleType: Subtitle
Creators: name: Hagmann , Dominik
Publisher: name: Wissenschaftliche Publikationen aus den Landessammlungen Niederösterreich
Year: 2019
Subjects: Roman Rural Landscapes in Noricum
Landschaftsarchäologie
Siedlungsarchäologie
räumliche Analysen
ländliche Besiedlung
ländliche Landschaft
Provinzialrömische Archäologie
Digitale Archäologie
PhD
Materielle Kultur
ÖFOS 2012, Classical archaeology
ÖFOS 2012, Klassische Archäologie

description: Der Artikel behandelt das Dissertationsprojekt des Autors, welches die archäologischen Besiedlungsaktivitäten in einem genau definierten Untersuchungsgebiet im nördlichen (heute niederösterreichischen) Hinterland der ehemaligen römischen Provinz Noricum behandelt. Die Charakteristika der römerzeitlichen Besiedlung im Hinterland bestimmter Teile der früheren Provinz Noricum sind aus verschiedenen Gründen kaum bekannt. Vor allem wird dies im Vergleich mit anderen Gebieten des römischen Reiches, etwa den Provinzen Raetien oder Britannien, deutlich. Aus dieser Situation erwuchs die Idee, die Erforschung der ländlichen Besiedlungsaktivitäten im nördlichen Gebiet der ehemaligen römischen Provinz Noricum in einem ausgewählten Untersuchungsgebiet im Rahmen einer Dissertation zu behandeln. Die Grundzüge dieses PhD-Projektes „Roman Rural Landscapes in Noricum. Archäologische Untersuchungen zur römischen Besiedlung im Hinterland Nord-Noricums“ (RRLN) sollen darum im Folgenden kurz aufgezeigt werden. Webseite zum Projekt: https://rrl.univie.ac.at/forschung/rrln >>>Aktuelle Version<<< >>>Diese Version zur Langzeitarchivierung weist geringfügige Unterschiede zur Druckfassung auf: Korrekturen in den Abbildungen 1 bis 3.<<
description: The article deals with the author's PhD-project, which focus on the archaeological settlement activities in a precisely defined study area in the northern (now Lower Austrian) hinterland of the former Roman province of Noricum. The characteristics of Roman settlement in the hinterland of certain parts of the former province of Noricum are hardly known for various reasons. Above all, this becomes clear in comparison with other areas of the Roman Empire, such as the provinces of Raetia or Britain. Because of that, the idea arose to start a state-of-the-art landscape archaeologcial research project regarding Roman rural settlement in the northern part of ​​the former Roman province of Noricum in a selected study area as part of a dissertation called 'Archaeological Studies on Roman Settlements in the Hinterland of Northern Noricum' (RRLN).
description: Alle Rechte vorbehalten.
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Saxena, Nitin
name: Simon, Sunil
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2020
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation
subject: Computing methodologies
subject: Software and its engineering

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 182, 40th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2020), pages 0:i-0:xvi
Identification of how economic development affects energy use through a natural experiment
Creators: name: Söderberg, Magnus
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: This paper empirically investigates how economic development (GDP) affects energy use. It deviates from previous studies in two important ways: (i) it explicitly allows the effect to be heterogeneous across regions, and (ii) it acknowledges that changes in GDP, i.e. GDP growth, can be endogenous and controls for this by exploiting deaths from natural disasters in 2002 and 2003. This instrument incorporates a natural experiment caused by the unusually severe heat wave that swept past several European countries in the summer of 2003. Based on data from 120 countries, results indicate that the marginal effect of the GDP rate is 66% higher when using 2SLS compared to OLS and that there is substantial heterogeneity across countries. Energy use is negatively correlated with the GDP level suggesting that there may be an Energy Kuznets Curve, but unexplained heterogeneity at high income levels suggests that there is still more to learn about the GDP-Energy relationship. HIGHLIGHTSInvestigates empirically how GDP growth affects energy use.Utilises the 2003 European heat wave as an instrument for GDP.Results show the relationship is heterogeneous and OLS is downward biased.Indication of Kuznets effect, i.e. a stronger relationship for less developed countries. Investigates empirically how GDP growth affects energy use. Utilises the 2003 European heat wave as an instrument for GDP. Results show the relationship is heterogeneous and OLS is downward biased. Indication of Kuznets effect, i.e. a stronger relationship for less developed countries.
Slamming motions of a rectangular-section barge model in harmonic waves
Creators: name: Worden, Douglas Neil
Publisher: name: University of British Columbia
Year: 2010

description: The work presented in this thesis concerns the theoretical analysis of the motion of floating rectangular cross-section bodies in single-frequency harmonic waves. When a conventional laterally symmetric ship is modelled by such a body, the computation of strip-theory coefficients (derived from the solution of Laplace's equation for the fluid surrounding the ship) is simplified. This technique is used here to model a typical barge, with actual cross-sections very close to the assumed rectangular shapes. In particular, slamming motions are investigated using two conventional linear slamming criteria. The rectangular section model is also applied to the investigation of slamming motions by use of 'quasi-harmonic' slamming criteria, which are developed from an updating technique used with conventional strip theory coefficients. Results are presented for an example.
Smectic-A Free Standing Film of Lennard-Jones Spherocylinder Model
Creators: name: Torikai, Masashi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A spherocylinder-like molecule with a Lennard-Jones type interaction is proposed as a model of smectic-A (Sm-A) liquid crystals, which can form a free-standing film. By means of Gibbs ensemble simulations, the isotropic, nematic, and Sm-A phases of the model fluid are found to coexist with a vapor phase; and the coexistence conditions of the liquid crystal phases with the vapor phase are determined. For a set of the interaction-parameters of the model molecule, the Sm-A free-standing film is produced below the bulk isotropic--Sm-A phase transition temperature by using Monte Carlo simulations. The film tension of the Sm-A free-standing film is calculated and its dependencies on the temperature and on the number of molecules are discussed.
description: 7 pages, 9 figures
Hydrodynamics with conserved current from the gravity dual
Creators: name: Hur, Jin
name: Kim, Kyung Kiu
name: Sin, Sang-Jin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the structure of the hydrodynamics with conserved current, using the gauge/gravity duality of charged black-hole background. It turns out that even in the presence of the external electromagnetic field at the boundary, bulk Einstein equation is equivalent to the boundary conservation of energy momentum tensor and that of current. As a consequence, the thermal conductivity and electric conductivity are calculated in terms of the parameters of the fundamental theory. We find that Wiedermann-Franz law hold with Lorentz number $1/e^2$
description: 16 pages, 1 figures, corrected typos, references and Appendices added
Green-Kubo formula for heat conduction in open systems
Creators: name: Kundu, Anupam
name: Dhar, Abhishek
name: Narayan, Onuttom
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain an exact Green-Kubo type linear response result for the heat current in an open system. The result is derived for classical Hamiltonian systems coupled to heat baths. Both lattice models and fluid systems are studied and several commonly used implementations of heat baths, stochastic as well as deterministic, are considered. The results are valid in arbitrary dimensions and for any system sizes. Our results are useful for obtaining the linear response transport properties of mesoscopic systems. Also we point out that for systems with anomalous heat transport, as is the case in low-dimensional systems, the use of the standard Green-Kubo formula is problematic and the open system formula should be used.
description: 4 pages
Probability and Statistics: Essays in Honor of David A. Freedman
Creators: name: Nolan, Deborah
name: Speed, Terry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: This volume is our tribute to David A. Freedman, whom we regard as one of the great statisticians of our time. He received his B.Sc. degree from McGill University and his Ph.D. from Princeton, and joined the Department of Statistics of the University of California, Berkeley, in 1962, where, apart from sabbaticals, he has been ever since. In a career of over 45 years, David has made many fine contributions to probability and statistical theory, and to the application of statistics. His early research was on Markov chains and martingales, and two topics with which he has had a lifelong fascination: exchangeability and De Finetti's theorem, and the consistency of Bayes estimates. His asymptotic theory for the bootstrap was also highly influential. David was elected to the American Academy of Arts and Sciences in 1991, and in 2003 he received the John J. Carty Award for the Advancement of Science from the U.S. National Academy of Sciences. In addition to his purely academic research, David has extensive experience as a consultant, including working for the Carnegie Commission, the City of San Francisco, and the Federal Reserve, as well as several Departments of the U.S. Government--Energy, Treasury, Justice, and Commerce. He has testified as an expert witness on statistics in a number of law cases, including Piva v. Xerox (employment discrimination), Garza v. County of Los Angeles (voting rights), and New York v. Department of Commerce (census adjustment). Lastly, he is an exceptionally good writer and teacher, and his many books and review articles are arguably his most important contribution to our subject.
description: Published in the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Correcting Errors in Digital Lexicographic Resources Using a Dictionary Manipulation Language
Creators: name: Zajic, David
name: Maxwell, Michael
name: Doermann, David
name: Rodrigues, Paul
name: Bloodgood, Michael
Publisher: name: Digital Repository at the University of Maryland
Year: 2011
Subjects: computer science
computational linguistics
noisy structured data
error correction
digital lexicography
electronic lexicography
XML
digital bilingual dictionaries

description: We describe a paradigm for combining manual and automatic error correction of noisy structured lexicographic data. Modifications to the structure and underlying text of the lexicographic data are expressed in a simple, interpreted programming language. Dictionary Manipulation Language (DML) commands identify nodes by unique identifiers, and manipulations are performed using simple commands such as create, move, set text, etc. Corrected lexicons are produced by applying sequences of DML commands to the source version of the lexicon. DML commands can be written manually to repair one-off errors or generated automatically to correct recurring problems. We discuss advantages of the paradigm for the task of editing digital bilingual dictionaries.
description: This material is based upon work supported, in whole or in part, with funding from the United States Government. Any opinions, findings and conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the University of Maryland, College Park and/or any agency or entity of the United States Government. Nothing in this report is intended to be and shall not be treated or construed as an endorsement or recommendation by the University of Maryland, United States Government, or the authors of the product, process, or service that is the subject of this report. No one may use any information contained or based on this report in advertisements or promotional materials related to any company product, process, or service or in support of other commercial purposes.
Quasi-elastic scattering and fusion with a modified Woods-Saxon potential
Creators: name: Wang, Ning
name: Scheid, Werner
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The elastic and large-angle quasi-elastic scattering reactions were studied with the same nucleus-nucleus potential proposed for describing fusion reactions. The elastic scattering angle distributions of some reactions are reasonably well reproduced by the proposed Woods-Saxon potential with fixed parameters at energies much higher than the Coulomb barrier. With an empirical barrier distribution based on the modified Woods-Saxon potential and taking into account the influence of nucleons transfer, the calculated quasi-elastic scattering cross sections of a series of reactions are in good agreement with the experimental data.
description: 16 pages, 7 figures
The quantum speed up as advanced knowledge of the solution
Creators: name: Castagnoli, Giuseppe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: With reference to a search in a database of size N, Grover states: "What is the reason that one would expect that a quantum mechanical scheme could accomplish the search in O(square root of N) steps? It would be insightful to have a simple two line argument for this without having to describe the details of the search algorithm". The answer provided in this work is: "because any quantum algorithm takes the time taken by a classical algorithm that knows in advance 50% of the information that specifies the solution of the problem". This empirical fact, unnoticed so far, holds for both quadratic and exponential speed ups and is theoretically justified in three steps: (i) once the physical representation is extended to the production of the problem on the part of the oracle and to the final measurement of the computer register, quantum computation is reduction on the solution of the problem under a relation representing problem-solution interdependence, (ii) the speed up is explained by a simple consideration of time symmetry, it is the gain of information about the solution due to backdating, to before running the algorithm, a time-symmetric part of the reduction on the solution; this advanced knowledge of the solution reduces the size of the solution space to be explored by the algorithm, (iii) if I is the information acquired by measuring the content of the computer register at the end of the algorithm, the quantum algorithm takes the time taken by a classical algorithm that knows in advance 50% of I, which brings us to the initial statement.
description: 23 pages, to be published in IJTP
Investigation of 74As decay branching ratio dependence on the host material
Creators: name: Gyürky, Gy
name: Farkas, J.
name: Yalcin, C.
name: Kiss, G. G.
name: Elekes, Z.
name: Fülöp, Zs.
name: Somorjai, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The branching ratio between the beta- and beta+/electron capture decay of 74As has been measured in different host materials such as Ta, Al, Ge and mylar. No significant dependence of the branching ratio on the host material has been observed. The half-life of 74As has also been measured in metallic Ta and in semiconductor Ge, no difference has been found and the results are in agreement with the literature value. The obtained results provide an upper limit for the possible host material dependence of the decay rate in 74As.
description: Accepted for publication in Europhysics Letters
Spin relaxation and recombination in atomic hydrogen gas at temperatures around 1 K
Creators: name: Marsolais, Richard
Publisher: name: University of British Columbia
Year: 2010

description: An experiment for studying a gas of atomic hydrogen at temperatures between 0.9 K and 1.3 K is described. The field dependence of the recombination rate of H atoms into H₂ molecules and the spin-exchange cross-section are investigated. Atoms are produced in situ in a low temperature discharge and are confined in a pyrex cell. The walls of this cell are covered with a film of superfluid ⁴He for preventing recombination. The detection and the study of the hydrogen atoms is done using the technique of pulsed magnetic resonance between the lowest two hyperfine levels of the 1s hydrogen atoms. The frequency is about 765.5 MHz and corresponds to a shallow minimum in the difference between the lowest two hyperfine levels, which occurs at 6481 kGauss. A simple model is also derived for explaining the field dependence of the recombination in the presence of a relatively large ⁴He density. In fact, due to the vapour pressure, the helium density will be above 10¹⁸ atoms/cm³ in the range of temperatures in which we are interested, while the density of hydrogen atoms will be about 10¹¹ -10¹² atoms/cm³. The relaxation mechanism assumed is spin-exchange. The parameters of the model are fit to the existing data. It is found in particular that the asymptotic behavior of the hyperfine populations depends sensitively on the initial populations.
The rotation-magnetic field relation
Creators: name: Reiners, A.
name: Scholz, A.
name: Eislöffel, J.
name: Hallinan, G.
name: Berger, E.
name: Browning, M.
name: Irwin, J.
name: Küker, M.
name: Matt, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Today, the generation of magnetic fields in solar-type stars and its relation to activity and rotation can coherently be explained, although it is certainly not understood in its entirety. Rotation facilitates the generation of magnetic flux that couples to the stellar wind, slowing down the star. There are still many open questions, particularly at early phases (young age), and at very low mass. It is vexing that rotational braking becomes inefficient at the threshold to fully convective interiors, although no threshold in magnetic activity is seen, and the generation of large scale magnetic fields is still possible for fully convective stars. This article briefly outlines our current understanding of the rotation-magnetic field relation.
description: 8 pages, splinter summary of the session "The rotation-magnetic field relation" at Cool Stars 15 in St Andrews
Mean encounter times for cell adhesion in hydrodynamic flow: analytical progress by dimensional reduction
Creators: name: Korn, C. B.
name: Schwarz, U. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: For a cell moving in hydrodynamic flow above a wall, translational and rotational degrees of freedom are coupled by the Stokes equation. In addition, there is a close coupling of convection and diffusion due to the position-dependent mobility. These couplings render calculation of the mean encounter time between cell surface receptors and ligands on the substrate very difficult. Here we show for a two-dimensional model system how analytical progress can be achieved by treating motion in the vertical direction by an effective reaction term in the mean first passage time equation for the rotational degree of freedom. The strength of this reaction term can either be estimated from equilibrium considerations or used as a fit parameter. Our analytical results are confirmed by computer simulations and allow to assess the relative roles of convection and diffusion for different scaling regimes of interest.
description: Reftex, postscript figures included
Pushing the Limits of Contemporary Statistics: Contributions in Honor of Jayanta K. Ghosh
Creators: name: Clarke, Bertrand
name: Ghosal, Subhashis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Jayanta Kumar Ghosh is one of the most extraordinary professors in the field of Statistics. His research in numerous areas, especially asymptotics, has been groundbreaking, influential throughout the world, and widely recognized through awards and other honors. His leadership in Statistics as Director of the Indian Statistical Institute and President of the International Statistical Institute, among other eminent positions, has been likewise outstanding. In recognition of Jayanta's enormous impact, this volume is an effort to honor him by drawing together contributions to the main areas in which he has worked and continues to work. The papers naturally fall into five categories. First, sequential estimation was Jayanta's starting point. Thus, beginning with that topic, there are two papers, one classical by Hall and Ding leading to a variant on p-values, and one Bayesian by Berger and Sun extending reference priors to stopping time problems. Second, there are five papers in the general area of prior specification. Much of Jayanta's earlier work involved group families as does Sweeting's paper here for instance. There are also two papers dwelling on the link between fuzzy sets and priors, by Meeden and by Delampady and Angers. Equally daring is the work by Mukerjee with data dependent priors and the pleasing confluence of several prior selection criteria found by Ghosh, Santra and Kim. Jayanta himself studied a variety of prior selection criteria including probability matching priors and reference priors.
description: Published in the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Entanglement through conformal interfaces
Creators: name: Sakai, Kazuhiro
name: Satoh, Yuji
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider entanglement through permeable interfaces in the c=1 (1+1)-dimensional conformal field theory. We compute the partition functions with the interfaces inserted. By the replica trick, the entanglement entropy is obtained analytically. The entropy scales logarithmically with respect to the size of the system, similarly to the universal scaling of the ordinary entanglement entropy in (1+1)-dimensional conformal field theory. Its coefficient, however, is not constant but controlled by the permeability, the dependence on which is expressed through the dilogarithm function. The sub-leading term of the entropy counts the winding numbers, showing an analogy to the topological entanglement entropy which characterizes the topological order in (2+1)-dimensional systems.
description: 14 pages, no figures; (v2) a reference added, minor changes; (v3) results and comments on special cases added
Doping Dependence of Upper Critical Field of High-Tc Cuprate Bi2+xSr2-xCaCu2O8+d Estimated from Irreversibility Field at Zero Temperature
Creators: name: Kato, Junichiro
name: Ishida, Shigeyuki
name: Okada, Tatsunori
name: Nakagawa, Shungo
name: Mino, Yutaro
name: Higashi, Yoichi
name: Kashiwagi, Takanari
name: Awaji, Satoshi
name: Iyo, Akira
name: Ogino, Hiraku
name: Mawatari, Yasunori
name: Takeshita, Nao
name: Yoshida, Yoshiyuki
name: Eisaki, Hiroshi
name: Nishio, Taichiro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We investigated the temperature (T) dependence of the irreversibility field Hirr(T) in high-critical-temperature cuprate Bi2+xSr2-xCa1-yYyCu2O8+d (Bi-2212) single crystals over a wide range of hole doping level (p). Hirr(T) was evaluated by measuring the magnetization hysteresis loop. The value of Hirr(T) extrapolated to T = 0 K [Hirr(0)], is either equal to or sets the lower boundary for the upper critical field at T = 0 K [Hc2(0)]. Tc shows a parabolic p-dependence (peak at p = 0.16), whereas Hirr(0) increases monotonically with p by approximately one order of magnitude, from 19 T for the most underdoped sample (p = 0.065, Tc = 24 K) to 209 T for the most overdoped sample (p = 0.200, Tc = 75 K). The present results qualitatively agree with Hc2(0) values evaluated from the specific heat measurements. The observed p-dependence of Hirr(0) in Bi-2212 is distinct from those in YBa2Cu3O7-d and HgBa2CuO6+d, in which a pronounced dip structure appears in the underdoped region. Considering that the dip structures observed in these two systems are likely associated with the formation of competing orders (most likely field-induced charge orders), the present results indicate that the influence of the competing order in Bi-2212 is less prominent than that in the other two systems.
description: 32 pages, 9 figures, 1 table
A 100 mW monolithic Yb waveguide laser fabricated using the femtosecond laser direct-write technique
Creators: name: Ams, Martin
name: Dekker, Peter
name: Marshall, Graham D.
name: Withford, Michael J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A femtosecond laser-written monolithic waveguide laser (WGL) oscillator based on a distributed feedback (DFB) architecture and fabricated in ytterbium doped phosphate glass is reported. The device lased at 1033 nm with an output power of 102 mW and a bandwidth less than 2 pm when bidirectionally pumped at 976 nm. The WGL device was stable and operated for 50 hours without degradation. This demonstration of a high performance WGL opens the possibility for creating a variety of narrow-linewidth laser designs in bulk glasses.
description: 5 pages, 3 figures, submitted journal manuscript
A high performance active noise control system for magnetic fields
Creators: name: Pyragius, Tadas
name: Jensen, Kasper
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: We present a system for active noise control (ANC) of environmental magnetic fields based on a Filtered-x Least Mean Squares (FxLMS) algorithm. The system consists of a sensor that detects the ambient field noise and an error sensor that measures the signal of interest contaminated with the noise. These signals are fed to an adaptive algorithm that constructs a physical anti-noise signal cancelling the local magnetic field noise. The proposed system achieves a maximum of 35 dB root-mean-square (RMS) noise suppression in the DC-1 kHz band and 50 dB and 40 dB amplitude suppression of 50 Hz and 150 Hz AC line noise respectively for all three axial directions of the magnetic vector field.
description: The article has been submitted to Review of Scientific Instruments
Multi-object spectroscopy of low-redshift EIS clusters IV. Reliability of matched-filter results at z~0.3-0.4
Creators: name: Grove, L. F.
name: da Costa, L.
name: Benoist, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: abridged) In this paper we present new redshifts for 747 galaxies in 23 ESO Imaging Survey (EIS) cluster fields. We use the "gap"-technique to search for significant overdensities in redshift space for identifying groups/clusters of galaxies. In this way we spectroscopically confirm systems in 10 of the 23 cluster candidate fields with a matched-filter estimated redshift z_MF=0.3-0.4 and with spectroscopic redshifts in the range from z=0.158 to z=0.534. We find that the systems identified in the present paper span a broad range of one-dimensional velocity dispersion (175-497 km/s) and richness (12L*<=L<=65L*). Both undersampling and contamination by substructures contribute to the uncertainty of these measurements. From the analysis of the colours of the galaxy populations we find that ~60% of the spectroscopically confirmed systems have a "significant" red sequence with a colour matching passive stellar evolution models. With this paper we complete our spectroscopic survey of the fields of 58 EIS cluster candidates with estimated redshifts z<=0.4. We have measured a total of 1954 galaxy redshifts in the range z=0.0065 to z=0.6706. Of the 58 systems we confirm 42 (~75%) with redshifts between z=0.095 and z=0.534.
description: Accepted for publication in A&A, 19 pages, 11 figures
Numerical revision of the universal amplitude ratios for the two-dimensional 4-state Potts model
Creators: name: Shchur, Lev N.
name: Berche, Bertrand
name: Butera, Paolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Monte Carlo (MC) simulations and series expansion (SE) data for the energy, specific heat, magnetization and susceptibility of the ferromagnetic 4-state Potts model on the square lattice are analyzed in a vicinity of the critical point in order to estimate universal combinations of critical amplitudes. The quality of the fits is improved using predictions of the renormalization group (RG) approach and of conformal invariance, and restricting the data within an appropriate temperature window. The RG predictions on the cancelation of the logarithmic corrections in the universal amplitude ratios are tested. A direct calculation of the effective ratio of the energy amplitudes using duality relations explicitly demonstrates this cancelation of logarithms, thus supporting the predictions of RG. We emphasize the role of corrections of background terms on the determination of the amplitudes. The ratios of the critical amplitudes of the susceptibilities obtained in our analysis differ significantly from those predicted theoretically and supported by earlier SE and MC analysis. This disagreement might signal that the two-kink approximation used in the analytical estimates is not sufficient to describe with fair accuracy the amplitudes of the 4-state model.
description: 32 pages, 9 figures, 11 tables
title: Supporting evidence-based conservation for hedgehogs in urban areas: the importance of residential gardens and householder actions
Creators: name: Gazzard, Abigail Molly
Publisher: name: University of Reading
Year: 2022

description: Urban-dwelling wildlife face a wide range of challenges including, but not limited to, habitat 
loss, habitat fragmentation and the mortality risks associated with roads, domestic animals 
and human activities. Nonetheless, urban areas can provide critical refuge for a range of
species, including some of conservation concern; detailed knowledge of how these species
persist in human-modified landscapes is necessary for the development of sound 
conservation strategies. 
The West European hedgehog (Erinaceus europaeus) is a small (<1.5kg), nocturnal, 
hibernating mammal that has declined markedly in Britain over recent decades most 
prominently within rural landscapes, and is nowadays more commonly found within urban 
habitats, including in residential gardens. Consequently, householders are urged by 
conservation groups to make their gardens more ‘hedgehog friendly’ by, for example, 
increasing accessibility through garden boundaries, providing artificial refugia and/or giving 
supplemental food. Current understanding of garden use by hedgehogs, the extent to which 
such ‘hedgehog-friendly’ initiatives have been adopted by householders and their subsequent 
impacts is, however, limited. Therefore, the current study aimed to quantify key factors 
relating to habitat use by urban hedgehogs and conservation actions within gardens.
First, 28 hedgehogs were radio/GPS tracked in a residential area in Reading, UK, and the data 
were used in combination with GIS and householder-supplied information to quantify habitat 
selection, the number of gardens visited and factors affecting the extent of individual garden 
use. Second, hedgehog occupancy in gardens during a hibernation period was monitored 
using footprint tunnels and assessed against within- and outside-garden variables. Finally, 
two online questionnaire surveys were undertaken to explore (i) factors affecting the use of 
artificial refuges (nest boxes) in gardens, and (ii) householder engagement with the 
‘hedgehog highways’ campaign which aims to increase connectivity between gardens; 
collectively, >10,000 responses were received from householders in the UK. 
Overall, it is evident that householders have the capacity to positively influence hedgehog 
activity patterns in gardens via the provision of key resources such as food and nesting 
opportunities, but that other biotic and abiotic factors also play a role. However, householder 
engagement with some conservation activities can be strongly impacted by, e.g., the need to 
coordinate with neighbours. Future studies are therefore needed to identify mechanisms to 
overcome such impediments to maximise the number of participating households. 
Fundamentally, future research needs to focus on quantifying the impacts, potentially both 
positive and negative, of conservation activities on hedgehog populations.
Thermodynamics of Gauss-Bonnet black holes revisited
Creators: name: Myung, Yun Soo
name: Kim, Yong-Wan
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the Gauss-Bonnet black hole in five dimensional anti-de Sitter spacetimes (GBAdS). We analyze all thermodynamic quantities of the GBAdS, which is characterized by the Gauss-Bonnet coupling $c$ and mass $M$, comparing with those of the Born-Infeld-AdS (BIAdS), Reissner-Norström-AdS black holes (RNAdS), Schwarzschild-AdS (SAdS), and BTZ black holes. For $c<0$ we cannot obtain the black hole with positively definite thermodynamic quantities of mass, temperature, and entropy because the entropy does not satisfy the area-law. On the other hand, for $c>0$, we find the BIAdS-like black hole, showing that the coupling $c$ plays the role of pseudo-charge. Importantly, we could not obtain the SAdS in the limits of $c\to 0$, which means that the GBAdS is basically different from the SAdS. In addition, we clarify the connections between thermodynamic and dynamical stability. Finally, we also conjecture that if a black hole is big and thus globally stable, its quasinormal modes may take analytic expressions.
description: 22 pages, 8 figures, version to appear in EPJC
The Natural Logarithm on Time Scales
Creators: name: Mozyrska, Dorota
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 39A12, 26A09

description: We define an appropriate logarithm function on time scales and present its main properties. This gives answer to a question posed by M. Bohner in [J. Difference Equ. Appl. {\bf 11} (2005), no. 15, 1305--1306].
description: 6 pages
Variable stars in the Fornax dSph Galaxy. II. Pulsating stars below the horizontal branch
Creators: name: Poretti, Ennio
name: Clementini, Gisella
name: Held, Enrico V.
name: Greco, Claudia
name: Mateo, Mario
name: Dell'Arciprete, Luca
name: Rizzi, Luca
name: Gullieuszik, Marco
name: Maio, Marcella
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out an intensive survey of the northern region of the Fornax dwarf spheroidal galaxy with the aim of detecting the galaxy's short--period pulsating stars (P<0.25 days). Observations collected over three consecutive nights with the Wide Field Imager of the 2.2m MPI telescope at ESO allowed us to detect 85 high-amplitude (0.20-1.00 mag in B-light) variable stars with periods in the range from 0.046 to 0.126 days, similar to SX Phoenicis stars in Galactic metal-poor stellar populations. The plots of the observed periods vs. the B and V magnitudes show a dispersion largely exceeding the observational errors. To disentangle the matter, we separated the first-overtone from the fundamental-mode pulsators and tentatively identified a group of subluminous variables, about 0.35 mag fainter than the others. Their nature as either metal-poor intermediate-age stars or stars formed by the merging of close binary systems is discussed. The rich sample of the Fornax variables also led us to reconstruct the Period-Luminosity relation for short-period pulsating stars. An excellent linear fit, M(V)=-1.83(+/-0.08)-3.65(+/-0.07) log P(fund), was obtained using 153 Delta Scuti and SX Phoenicis stars in a number of different stellar systems.
description: 11 pages plus 1 on-line figure and 1 on-line table; accepted for publication in ApJ. Part of this work has been the subject of the Laurea thesis of LDA. His supervisor and our colleague, Prof. Laura E. Pasinetti, suddendly passed away on September 13, 2006. Several astronomers have been trained under her tutelage and we gratefully honor her memory