cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling a tethered polymer loop : shape and thickness compressibility
Creators: name: Wong, Wesley Philip
Publisher: name: University of British Columbia
Year: 2009

description: A Monte Carlo simulation was used to investigate the thickness compressibility and shape properties of a tethered polymer loop. Specifically, the dependence on chain length, bending stiffness (i.e. persistence length) and excluded volume interactions was examined. Power law relationships were determined when appropriate. For a flexible phantom chain of 90 segments, reasonably good agreement was found with the predictions of an analytical random flight model based on the diffusion equation. By examining the transition from flexible to semi-flexible, rough bounds were placed on the domain in which a worm-like chain can be well described by an equivalent freely jointed chain. As the bending stiffness was increased but the contour length held fixed, the polymer loop crossed over into the "stiff elastic rod" regime. This was marked by a change in the relationship between force and gap distance, as well as an alteration of shape properties. Finally, the single polymer loop model was compared to a simulation of the red blood cell spectrin network by Boal [1]. Many of the features of network geometry and elastic thickness compliance could be well approximated by the single chain model.
Identical Particle Correlations in STAR
Creators: name: Chajecki, Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Preliminary results of identical-particle correlations probing the geometric substructure of the particle-emitting source at RHIC are presented. An $m_T$-independent scaling of pion HBT radii from large (central Au+Au) to small (p+p) collision systems naively suggests comparable flow strength in all of them. Multidimensional correlation functions are studied in detail using a spherical decomposition method. In the light systems, the presence of significant long-range non-femtoscopic correlations complicates the extraction of HBT radii.
description: Talk given at Quark Matter 2005, 18th Internationl Conference on Nucleus-Nucleus Interactions, August 4-9, 2005, Budapest, Hungary; 4 pages, 5 figures; figure 1 corrected; few references added; the discussion on universal scaling has been slightly changed
Additional file 7 of Characterization of integrated prophages within diverse species of clinical nontuberculous mycobacteria
Creators: name: Glickman, Cody
name: Kammlade, Sara M.
name: Nabeeh A. Hasan
name: L. Elaine Epperson
name: Davidson, Rebecca M.
name: Strong, Michael
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 7: Figure S4. Phylogeny of host M. chimaera and M. intracellulare genomes. The shaded boxes are located along an x axis, which lists the lettered PhagesDB clusters. The presence of prophage in a sample is noted by a shaded box in any column except NA/Control. No shading means the sample does not have a prophage in that lettered cluster. Statistical significance was not achieved using PERMANOVA on this tree (F = 1.12, p = 0.321).
VALUE-ADDED WHEAT PRODUCTS: ANALYSIS OF MARKETS AND COMPETITION
Creators: name: Lou, Jianqiang
name: Wilson, William W.
name: Lou, Jianqiang
name: Wilson, William W.
Publisher: name: Unknown
Year: 1998
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: bakery
subject: consumption
subject: industry
subject: competitive structure.

description: This study evaluated the U.S. domestic market for bakery products and identified market size and growth rate by product segment. The competitive structure and dynamics of the baking industry were analyzed including the geographic scope of the market, product structure, minimum efficient scale, processing consolidation, and entry/exit behavior.
Additional file 5 of Characterization of integrated prophages within diverse species of clinical nontuberculous mycobacteria
Creators: name: Glickman, Cody
name: Kammlade, Sara M.
name: Nabeeh A. Hasan
name: L. Elaine Epperson
name: Davidson, Rebecca M.
name: Strong, Michael
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 5: Figure S2. Genome wide phylogeny of 80 M. abscessus subsp. abscessus and M. abscessus subsp. boletti genomes and 5 control genomes. The heatmap on the right shows the presence (black) or absence (white) of the lettered PhagesDB clusters (x-axis). The presence of prophage in a sample is noted by a shaded box in any column except NA/Control. NA/Control shading signifies genomes without a prophage and added controls not analyzed for prophages in this study. No shading means the sample does not have a prophage in that lettered cluster.
Hole-LO phonon interaction in InAs/GaAs quantum dots
Creators: name: Preisler, Vanessa
name: Ferreira, Robson
name: Hameau, Sophie
name: De Vaulchier, Louis-Anne
name: Guldner, Yves
name: Sadowski, Marcin L
name: Lemaître, Aristide
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the valence intraband transitions in p-doped self-assembled InAs quantum dots using far-infrared magneto-optical technique with polarized radiation. We show that a purely electronic model is unable to account for the experimental data. We calculate the coupling between the mixed hole LO-phonon states using the Fröhlich Hamiltonian, from which we determine the polaron states as well as the energies and oscillator strengths of the valence intraband transitions. The good agreement between the experiments and calculations provides strong evidence for the existence of hole-polarons and demonstrates that the intraband magneto-optical transitions occur between polaron states.
Additional file 6 of Characterization of integrated prophages within diverse species of clinical nontuberculous mycobacteria
Creators: name: Glickman, Cody
name: Kammlade, Sara M.
name: Nabeeh A. Hasan
name: L. Elaine Epperson
name: Davidson, Rebecca M.
name: Strong, Michael
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 6: Figure S3. Phylogeny of host M. absessus subsp. massiliense genomes. The shaded boxes are located along an x axis, which lists the lettered PhagesDB clusters. The presence of prophage in a sample is noted by a shaded box in any column except NA/Control. No shading means the sample does not have a prophage in that lettered cluster. Statistical significance was not achieved using PERMANOVA on this tree (F = 1.398, p = 0.225).
Additional file 4 of Characterization of integrated prophages within diverse species of clinical nontuberculous mycobacteria
Creators: name: Glickman, Cody
name: Kammlade, Sara M.
name: Nabeeh A. Hasan
name: L. Elaine Epperson
name: Davidson, Rebecca M.
name: Strong, Michael
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics

description: Additional file 4: Figure S1. Relative locations of predicted prophages in M. absessus subsp. absessus and M. avium. Prophages are colored by the host origin.
Demonstration of a passive sub-picostrain fiber strain sensor
Creators: name: Chow, Jong H.
name: Littler, Ian C. M.
name: McClelland, David E.
name: Gray, Malcolm B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We demonstrate a fiber Fabry-Perot (FFP) sensor capable of detecting sub-picostrain signals, from 100 Hz and extending beyond 100 kHz, using the Pound-Drever-Hall frequency locking technique. A low power diode laser at 1550 nm is locked to a free-space reference cavity to suppress its free-running frequency noise, thereby stabilizing the laser. The stabilized laser is then used to interrogate a FFP where the PDH error signal yields the instantaneous fiber strain.
description: 3 pages, 4 figure, to appear in Optics Letters
Anomaly detection in Astrophysics: a comparison between unsupervised Deep and Machine Learning on KiDS data
Creators: name: D'Addona, Maurizio
name: Riccio, Giuseppe
name: Cavuoti, Stefano
name: Tortora, Crescenzo
name: Brescia, Massimo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Every field of Science is undergoing unprecedented changes in the discovery process, and Astronomy has been a main player in this transition since the beginning. The ongoing and future large and complex multi-messenger sky surveys impose a wide exploiting of robust and efficient automated methods to classify the observed structures and to detect and characterize peculiar and unexpected sources. We performed a preliminary experiment on KiDS DR4 data, by applying to the problem of anomaly detection two different unsupervised machine learning algorithms, considered as potentially promising methods to detect peculiar sources, a Disentangled Convolutional Autoencoder and an Unsupervised Random Forest. The former method, working directly on images, is considered potentially able to identify peculiar objects like interacting galaxies and gravitational lenses. The latter instead, working on catalogue data, could identify objects with unusual values of magnitudes and colours, which in turn could indicate the presence of singularities.
description: Preprint version of the manuscript to appear in the Volume "Intelligent Astrophysics" of the series "Emergence, Complexity and Computation", Book eds. I. Zelinka, D. Baron, M. Brescia, Springer Nature Switzerland, ISSN: 2194-7287
Charge dynamics effects in conductance through a large semi-open quantum dot
Creators: name: Stefanski, Piotr
name: Tagliacozzo, Arturo
name: Bulka, Bogdan R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Fano lineshapes in resonant transmission in a quantum dot imply interference between localized and extended states. The influence of the charge accumulated at the localized levels, which screens the external gate voltage acting on the conduction channel is investigated. The modified Fano q parameter and the resonant conduction is derived starting from a microscopic Hamiltonian. The latest experiments on "charge sensing" and ``Coulomb modified Fano sensing `` compare well with the results of the present model.
description: 5 pages, 4 figures, RevTex style
A two-stage outflow in NGC 1068
Creators: name: May, D.
name: Steiner, J. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of the Seyfert 2 galaxy NGC 1068 with archive data from SINFONI-VLT, in the HK bands with pixel scales of 0.1 (data set 1 - DS1) and 0.025 (DS2) arcsec. The data are revisited with a sophisticated data treatment, such as the differential atmospheric refraction correction and the application of a Butterworth filtering and deconvolution. The gain in the process is quantified by a significant improvement in the Strehl ratio and it shows that an unprecedented high spatial resolution is achieved. For DS1, a detailed study of the H$_{2}$, [Fe II] and [Si VI] emission lines reveals a three-phase gas morphology: (1) the low-velocity [Fe II] emission representing the glowingwall of an hourglass structure, (2) the high-velocity compact blobs of low and high ionization emissions filling the hourglass volume and (3) the distribution of H$_{2}$ molecular gas defines the thick and irregular walls of a bubble surrounding a cavity. Both the hourglass and the molecular emissions have an asymmetry caused by the fragmentation of the north-eastern molecular wall, closest to the active galactic nucleus, resulting in highvelocity compact blobs of ionized gas outside the bubble. The south-western part of the bubble is excavated by the jet, where the blobs remain confined and are blown along the bubble's inner boundary. We propose that those blobs are driven by a hot "secondary wind" coming from the spot where the jet interacts and injects its energy in the molecular gas. The combination of a primary wind launched by the central source and the secondary wind is what we call a two-stage outflow. For DS2, we detected a [Si VI] outflow nearly coplanar to the maser disc and orthogonal to the CO outflow found by a previous study. Such unexpected scenario is interpreted as the interaction between the central radiation field and a two-phase gas density torus.
description: 33 pages, 31 figures
[Brev til DKNVS]
Creators: name: Universitetet I Christiania
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1862

description: Vedrørende den Hjelmstjerne-Rosencroneske stiftelse
description: Sendt fra det akademiske Collegiums sekretariat. Polydoc nr. 1: 83.
title: Intertextuelle Strategien in Richard Strauss’ "Capriccio"
Creators: name: Umbreit, Tabea
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2019

description: Richard Strauss' letzte Oper "Capriccio" steckt voller intertextueller Bezüge. Erst durch die mal überdeutlichen, mal subtilen Anspielungen auf Werke aus der Musik- und Literaturgeschichte funktioniert das sogenannte "Konversationsstück". In der vorliegenden Arbeit werden solche konkreten Referenzen gesammelt, untersucht auf welche Weise sie in der Oper eingearbeitet wurden und anschließend ihre Bedeutungen interpretiert. Dabei geht es zum einen um den direkten Bezug zur erzählten Handlung, zum anderen um die Verortung auf der Metaebene der Oper, die als ästhetischer Diskurs und kulturgeschichtliche Rückschau funktioniert. Durch das hohe Maß an Selbstreferenzialität des Werks, sind diese beiden Ebenen in "Capriccio" kaum trennbar.
Composition of North Dakota's Economic Base: A Regional Analysis
Creators: name: Coon, Randal C.
name: Leistritz, F. Larry
name: Hertsgaard, Thor A.
name: Coon, Randal C.
name: Leistritz, F. Larry
name: Hertsgaard, Thor A.
Publisher: name: Unknown
Year: 1986
Subjects: Community/Rural/Urban Development
Production Economics

description: The economic base of North Dakota and its eight substate regions has changed over the past couple of decades. This report takes an in-depth look at the economic base for each of these areas over the 1958-1984 period. Each of the regions has a unique composition of basic activities that have been responsible for its growth. Natural resource related activities, either in the form of agricultural or energy production, have been the largest source of real economic growth within the state. The purpose of this report is to identify the components of the economic base at substate levels and to show the changes in relative composition for these activities. Price and production data are presented to support and explain the changes that have occurred.
Comparison of outlier detection methods on astronomical image data
Creators: name: Doorenbos, Lars
name: Cavuoti, Stefano
name: Brescia, Massimo
name: D'Isanto, Antonio
name: Longo, Giuseppe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Among the many challenges posed by the huge data volumes produced by the new generation of astronomical instruments there is also the search for rare and peculiar objects. Unsupervised outlier detection algorithms may provide a viable solution. In this work we compare the performances of six methods: the Local Outlier Factor, Isolation Forest, k-means clustering, a measure of novelty, and both a normal and a convolutional autoencoder. These methods were applied to data extracted from SDSS stripe 82. After discussing the sensitivity of each method to its own set of hyperparameters, we combine the results from each method to rank the objects and produce a final list of outliers.
description: Preprint version of the accepted manuscript to appear in the Volume "Intelligent Astrophysics" of the series "Emergence, Complexity and Computation", Book eds. I. Zelinka, D. Baron, M. Brescia, Springer Nature Switzerland, ISSN: 2194-7287
Rhizoprionodon Whitley 1929
Creators: name: Cicimurri, David J.
name: Ebersole, Jun A.
name: Stringer, Gary L.
name: Starnes, James E.
name: Phillips, George E.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Carcharhiniformes
Carcharhinidae
Rhizoprionodon

description: Genus Rhizoprionodon Whitley, 1929
Type species
Carcharias crenidens Klunzinger, 1880, Extant.
description: Published as part of Cicimurri, David J., Ebersole, Jun A., Stringer, Gary L., Starnes, James E. & Phillips, George E., 2025, Late Oligocene fishes (Chondrichthyes and Osteichthyes) from the Catahoula Formation in Wayne County, Mississippi, USA, pp. 1-131 in European Journal of Taxonomy 984 (1) on page 30, DOI: 10.5852/ejt.2025.984.2851, http://zenodo.org/record/15126034
Devaluation: a dynamical mechanism for a naturally small cosmological constant
Creators: name: Freese, Katherine
name: Liu, James T.
name: Spolyar, Douglas
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a natural solution to the cosmological constant problem consistent with the standard cosmology and successful over a broad range of energies. This solution is based on the existence of a new field, the devaluton, with its potential modeled on a tilted cosine. After inflation, the universe reheats and populates the devaluton's many minima. As the universe cools, domain walls form between different regions. The domain wall network then evolves and sweeps away regions of higher vacuum energy in favor of lower energy ones. Gravitation itself provides a cutoff at a minimum vacuum energy, thus leaving the universe with a small cosmological constant comparable in magnitude to the present day dark energy density.
description: 6 pages and prepared in ReV-TeX added notes on eltro-weak breaking and ds vacua
The milliarcsecond-scale radio structure of AB Dor A
Creators: name: Climent, J. B.
name: Guirado, J. C.
name: Azulay, R.
name: Marcaide, J. M.
name: Jauncey, D. L.
name: Lestrade, J. -F.
name: Reynolds, J. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: The fast rotator, pre-main sequence star AB Dor A is a strong and persistent radio emitter. The extraordinary coronal flaring activity is thought to be the origin of compact radio emission and other associated phenomena as large slingshot prominences. Aim: We aim to investigate the radio emission mechanism and the milliarcsecond radio structure around AB Dor A. Methods: We performed phase-referenced VLBI observations at 22.3 GHz, 8.4 GHz, and 1.4 GHz over more than one decade using the Australian VLBI array. Results: Our 8.4 GHz images show a double core-halo morphology, similar at all epochs, with emission extending at heights between 5 and 18 stellar radii. Furthermore, the sequence of the 8.4 GHz maps shows a clear variation of the source structure within the observing time. However, images at 1.4 GHz and 22.3 GHz are compatible with a compact source. The phase-reference position at 8.4 GHz and 1.4 GHz are coincident with those expected from the well-known milliarcsecond-precise astrometry of this star, meanwhile the 22.3 GHz position is 4$σ$ off the prediction in the north-west direction. The origin of this offset is still unclear. Conclusions: We have considered several models to explain the morphology and evolution of the inner radio structure detected in AB Dor A which include emission from the stellar polar caps, a flaring, magnetically-driven loop structure, and the presence of helmet streamers. A possible close companion to AB Dor A has been also investigated. Our results confirm the extraordinary coronal magnetic activity of this star, able to produce compact radio structures at very large heights, so far only seen in binary interacting systems.
description: 11 pages, 6 figures, accepted for publication in Astronomy and Astrophysics
Analysis of the semileptonic (B_c -> B_u* l+ l-) decay from QCD sum rules
Creators: name: Aliev, T. M.
name: Savci, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the semileptonic (B_c -> B_u* l+ l-) decay in the frame work of the Standard Model. We calculate the (B_c) to (B_u*) transition form factors in QCD sum rules. Analytical expressions for the spectral densities and gluon condensates are presented. The branching ratio of the (B_c -> B_u* l+ l-) decay is calculated, and it is obtained that this decay can be detectable at forthcoming LHC machines.
description: 17 pages, no figures, LaTeX formatted
Additional file 3 of Halo score (temporal artery, its branches and axillary artery) as a diagnostic, prognostic and disease monitoring tool for Giant Cell Arteritis (GCA)
Creators: name: Sebastian, Alwin
name: Geest, Kornelis S. M. Van Der
name: Coath, Fiona
name: Gondo, Prisca
name: Kayani, Abdul
name: Mackerness, Craig
name: Hadebe, Bernard
name: Innes, Sue
name: Jackson, Jo
name: Dasgupta, Bhaskar
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Probability Score.
Extremal quantum cloning machines
Creators: name: Chiribella, G.
name: D'Ariano, G. M.
name: Perinotti, P.
name: Cerf, N. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the problem of cloning a set of states that is invariant under the action of an irreducible group representation. We then characterize the cloners that are "extremal" in the convex set of group covariant cloning machines, among which one can restrict the search for optimal cloners. For a set of states that is invariant under the discrete Weyl-Heisenberg group, we show that all extremal cloners can be unitarily realized using the so-called "double-Bell states", whence providing a general proof of the popular ansatz used in the literature for finding optimal cloners in a variety of settings. Our result can also be generalized to continuous-variable optimal cloning in infinite dimensions, where the covariance group is the customary Weyl-Heisenberg group of displacements.
description: revised version accepted for publication
Additional file 4 of Halo score (temporal artery, its branches and axillary artery) as a diagnostic, prognostic and disease monitoring tool for Giant Cell Arteritis (GCA)
Creators: name: Sebastian, Alwin
name: Geest, Kornelis S. M. Van Der
name: Coath, Fiona
name: Gondo, Prisca
name: Kayani, Abdul
name: Mackerness, Craig
name: Hadebe, Bernard
name: Innes, Sue
name: Jackson, Jo
name: Dasgupta, Bhaskar
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. Sonographer pro-forma.
Fast and Automated Peak Bagging with DIAMONDS (FAMED)
Creators: name: Corsaro, E.
name: McKeever, J. M.
name: Kuszlewicz, J. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stars of low and intermediate mass that exhibit oscillations may show tens of detectable oscillation modes each. Oscillation modes are a powerful to constrain the internal structure and rotational dynamics of the star, hence tool allowing one to obtain an accurate stellar age. The tens of thousands of solar-like oscillators that have been discovered thus far are representative of the large diversity of fundamental stellar properties and evolutionary stages available. Because of the wide range of oscillation features that can be recognized in such stars, it is particularly challenging to properly characterize the oscillation modes in detail, especially in light of large stellar samples. Overcoming this issue requires an automated approach, which has to be fast, reliable, and flexible at the same time. In addition, this approach should not only be capable of extracting the oscillation mode properties of frequency, linewidth, and amplitude from stars in different evolutionary stages, but also able to assign a correct mode identification for each of the modes extracted. Here we present the new freely available pipeline FAMED (Fast and AutoMated pEak bagging with DIAMONDS), which is capable of performing an automated and detailed asteroseismic analysis in stars ranging from the main sequence up to the core-Helium-burning phase of stellar evolution. This, therefore, includes subgiant stars, stars evolving along the red giant branch (RGB), and stars likely evolving toward the early asymptotic giant branch. In this paper, we additionally show how FAMED can detect rotation from dipolar oscillation modes in main sequence, subgiant, low-luminosity RGB, and core-Helium-burning stars. FAMED can be downloaded from its public GitHub repository (https://github.com/EnricoCorsaro/FAMED).
description: 46 pages, 19 figures, 4 tables. Accepted for publication in A&A
Estimating the Potential Gains from Mergers: The Danish Agricultural Extension Services
Creators: name: Bogetoft, Peter
name: Wang, Dexiang
name: Bogetoft, Peter
name: Wang, Dexiang
Publisher: name: Unknown
Year: 1999
Subjects: Teaching/Communication/Extension/Profession

description: We introduce simple non-parametric models to estimate the potential gains from merging production units. Three effects are distinguished. A merger may affect technical efficiency. It also affects the size of the operation which may or may not be advantageous depending on the return to scale properties of the underlying technologies. Lastly, it affects the mix of inputs available and the mix of outputs demanded. A merged unit face more "balanced" or "harmonic" input and output profiles which is typically advantageous. We use the model to estimate the potential gains from merging agricultural extension offices in Denmark.
The effects of endogenous and exogenous retinoids on facial patterning
Creators: name: Hui, Jenny Nga Jen
Publisher: name: University of British Columbia
Year: 2009

description: Retinoids have been known to influence cell migration, interaction, and differentiation, but their role in skeletal development is still unclear. We investigated the role of retinoic acid receptor (RAR) signaling in facial patterning in chicken embryos. Beads soaked in RAR pan-antagonist, AGN 193109, and implanted into the right nasal pit of stage 15 to 20 embryos induced mild skeletal abnormalities. In addition, Msx-1, Msx-2, Shh, and Fgf-8, expression were not altered, implying that AGN 193109 was not potent enough to completely inhibit all endogenous retinoid signaling in vivo. We indirectly studied the in vivo effectiveness of AGN 193109 by implanting embryos with both RAR antagonist and exogenous retinoic acid (RA) soaked beads to determine if the RAR antagonist could antagonize the RA induced teratogenic effect. We demonstrated that a low concentration of exogenous RA could result in failure of outgrowth of the prenasal cartilage and premaxilla. Moreover, the RA induced defects could be rescued by the cotreatment of RAR antagonist, suggesting that AGN 193109 was effective in antagonizing retinoid signaling in vivo for 18 hours and could not be dislodged from RARs by exogenous RA. RA treated embryos did not show any changes in Fgf-8 and Shh expression, implying that Fgf-8 and Shh were independent of retinoid signaling. However, ectopic expression of Msx-2 was induced by RA treatment and was not downregulated by the cotreatment of the RAR antagonist. This data indicated for the first time that Msx-2 was regulated by retinoid signaling but was not important for the patterning of the chicken upper beak. Most importantly, we demonstrated that a temporary downregulation of Msx-1 in stage 24 RA treated embryos resulted in failure of outgrowth of the prenasal cartilage and premaxilla, but this downregulation was recovered by the cotreatment of RAR antagonist. Thus, our study revealed that maintenance of Msx-1 between stage 20 and stage 24 was essential for the outgrowth of the chicken upper beak.
Den tidligere teoridannelse omkring landbrugets indkomstproblem samt pavirkningen af den faelles landbrugspolitik i Europa
Creators: name: Zobbe, Henrik
name: Zobbe, Henrik
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: agricultural policy
subject: income problems
subject: Common Agricultural Policy
subject: landbrugspolitik
subject: indkomstproblem
subject: faelles landbrugspolitik

description: The development of theory on agricultural income problems springs from empirical investigations showing that agricultural income is unstable over time, and that compared to other trades, it is diminishing. The theorists explain this with the fact that agricultural production factors are relatively rigid, due to lack of alternative application. This in turn means that the necessary adjustment to changes in relative pricing takes place too slowly. One solution would be an improvement to the alternative application of agricultural production factors, through structural policies. The Common Agricultural Policy, which among other things is founded on targeted incomes, works with price policy as a main means, not structural policy. This paper justifies this choice from a historical as well as an economic perspective. Teoridannelsen omkring landbrugets indkomstproblem udspringer af empiriske undersogelser, der viser, at landbrugets indkomster over tid er ustabile og faldende sammenlignet med andre erhverv. Teorierne forklarer dette med, at landbrugets produktionsfaktorer er forholdsvis fastlaste pa grund af en ringe alternativ anvendelsesaerdi. Dette gor, at den nødvendige tilpasning til aendringerne i de relative priser ikke sker hurtigt nok. En losning er en forbedring af den alternative anvendelsesaerdi ved hjaelp af strukturpolitiske foranstaltninger. Den faelles landbrugspolitik, der blandt andet bygger pa en indkomstmalsaetning, arbejder med prispolitik og ikke strukturpolitik som hovedinstrument. Artiklen begrunder dette valg ud fra bade historiske og økonomiske forhold.
Bipartite Yule Processes in Collections of Journal Papers
Creators: name: Morris, Steven A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Collections of journal papers, often referred to as 'citation networks', can be modeled as a collection of coupled bipartite networks which tend to exhibit linear growth and preferential attachment as papers are added to the collection. Assuming primary nodes in the first partition and secondary nodes in the second partition, the basic bipartite Yule process assumes that as each primary node is added to the network, it links to multiple secondary nodes, and with probability, $α$, each new link may connect to a newly appearing secondary node. The number of links from a new primary node follows some distribution that is a characteristic of the specific network. Links to existing secondary nodes follow a preferential attachment rule. With modifications to adapt to specific networks, bipartite Yule processes simulate networks that can be validated against actual networks using a wide variety of network metrics. The application of bipartite Yule processes to the simulation of paper-reference networks and paper-author networks is demonstrated and simulation results are shown to mimic networks from actual collections of papers across several network metrics.
description: Short conference paper. 7 pages, 11 figures
Vacuum Polarization Effects in the Lorentz and PCT Violating Electrodynamics
Creators: name: Bonneau, G.
name: Costa, L. C.
name: Tomazelli, J. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we report new results concerning the question of dynamical mass generation in the Lorentz and PCT violating quantum electrodynamics. A one loop calculation for the vacuum polarization tensor is presented. The electron propagator, "dressed" by a Lorentz breaking extra term in the fermion Lagrangian density, is approximated by its first order: this scheme is shown to break gauge invariance. Then we rather consider a full calculation to second order in the Lorentz breaking parameter: we recover gauge invariance and use the Schwinger-Dyson equation to discuss the full photon propagator. This allows a discussion on a possible photon mass shift as well as measurable, observable physical consequences, such as the Lamb-shift.
description: Latex file, 19 pages, no figures, includes PACS numbers
Additional file 2 of Halo score (temporal artery, its branches and axillary artery) as a diagnostic, prognostic and disease monitoring tool for Giant Cell Arteritis (GCA)
Creators: name: Sebastian, Alwin
name: Geest, Kornelis S. M. Van Der
name: Coath, Fiona
name: Gondo, Prisca
name: Kayani, Abdul
name: Mackerness, Craig
name: Hadebe, Bernard
name: Innes, Sue
name: Jackson, Jo
name: Dasgupta, Bhaskar
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Prednisolone tapering (BSR guidelines).
Cooperative Supply Chains in Peace and at War
Creators: name: Agrell, Per J.
name: Karantininis, Kostas
name: Agrell, Per J.
name: Karantininis, Kostas
Publisher: name: Unknown
Year: 2000
Subjects: Agribusiness

description: In the competition between supply chains, governance structure and coordination mechanisms can be as important as cost-efficiency. Flexible and non-committing contracts among upstream suppliers in cooperative alliances may lead to lower chain surplus through internal competition and renders the coordinator's position vulnerable for hostile take-overs. Cooperative supply chains are found in e.g. food industry, banking services, lawfirms and brokerage. The downstream processing or brand is owned collectively by the suppliers or service-providers. The supplier are linked to the chain by strong delivery (channel) rights and volume-based revenue-sharing schemes. The governance is flexible, promotes entry and market expansion. However, the decentralized decision making comes at a cost in terms of chain performance and resilience. A dynamic two-chain model with a captive and competitive market addresses the particular situation where the competing chain aggressor has a cooperative governance structure. The overt aggression at merger may have more to do with shortcomings in the managerial incentive structure than with the pursuit of market power. The results from the dynamic game is illustrated with empirical findings among dairy cooperatives in Denmark.
K2-280b -- a low density warm sub-Saturn around a mildly evolved star
Creators: name: Nowak, Grzegorz
name: Palle, Enric
name: Gandolfi, Davide
name: Deeg, Hans J.
name: Hirano, Teruyuki
name: Barragán, Oscar
name: Kuzuhara, Masayuki
name: Dai, Fei
name: Luque, Rafael
name: Persson, Carina M.
name: Fridlund, Malcolm
name: Johnson, Marshall C.
name: Korth, Judith
name: Livingston, John H.
name: Grziwa, Sascha
name: Mathur, Savita
name: Hatzes, Artie P.
name: Prieto-Arranz, Jorge
name: Nespral, David
name: Hidalgo, Diego
name: Hjorth, Maria
name: Albrecht, Simon
name: Van Eylen, Vincent
name: Lam, Kristine W. F.
name: Cochran, William D.
name: Esposito, Massimiliano
name: Csizmadia, Szilárd
name: Guenther, Eike W.
name: Kabath, Petr
name: Blay, Pere
name: Brahm, Rafael
name: Jordán, Andrés
name: Espinoza, Néstor
name: Rojas, Felipe
name: Barris, Núria Casasayas
name: Rodler, Florian
name: Sobrino, Roi Alonso
name: Cabrera, Juan
name: Carleo, Ilaria
name: Chaushev, Alexander
name: de Leon, Jerome
name: Eigmüller, Philipp
name: Endl, Michael
name: Erikson, Anders
name: Fukui, Akihiko
name: Georgieva, Iskra
name: González-Cuesta, Lucía
name: Knudstrup, Emil
name: Lund, Mikkel N.
name: Rodríguez, Pilar Montañes
name: Murgas, Felipe
name: Narita, Norio
name: Niraula, Prajwal
name: Pätzold, Martin
name: Rauer, Heike
name: Redfield, Seth
name: Ribas, Ignasi
name: Skarka, Marek
name: Smith, Alexis M. S.
name: Subjak, Jano
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an independent discovery and detailed characterisation of K2-280b, a transiting low density warm sub-Saturn in a 19.9-day moderately eccentric orbit (e = 0.35_{-0.04}^{+0.05}) from K2 campaign 7. A joint analysis of high precision HARPS, HARPS-N, and FIES radial velocity measurements and K2 photometric data indicates that K2-280b has a radius of R_b = 7.50 +/- 0.44 R_Earth and a mass of M_b = 37.1 +/- 5.6 M_Earth, yielding a mean density of 0.48_{-0.10}^{+0.13} g/cm^3. The host star is a mildly evolved G7 star with an effective temperature of T_{eff} = 5500 +/- 100 K, a surface gravity of log(g) = 4.21 +/- 0.05 (cgs), and an iron abundance of [Fe/H] = 0.33 +/- 0.08 dex, and with an inferred mass of M_star = 1.03 +/- 0.03 M_sun and a radius of R_star = 1.28 +/- 0.07 R_sun. We discuss the importance of K2-280b for testing formation scenarios of sub-Saturn planets and the current sample of this intriguing group of planets that are absent in the Solar System.
description: 14 pages, 9 figures, 5 tables, accepted for publication in MNRAS
Efficiency and Merger Gains in The Danish Forestry Extension Service
Creators: name: Bogetoft, Peter
name: Strange, Niels
name: Thorsen, Bo Jellesmark
name: Bogetoft, Peter
name: Strange, Niels
name: Thorsen, Bo Jellesmark
Publisher: name: Unknown
Year: 2001
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Data Envelopment Analysis (DEA)
subject: efficiency
subject: reorganisation

description: In Denmark, many small-scale forest owners are affiliated to local district offices of The Danish Forestry Extension Service. Increasing economic pressure has caused a search for more efficiency in the Service, including potential reorganisation. In this paper, the efficiency of the different offices is evaluated using Data Envelopment Analysis (DEA) to approximate their production technology. Furthermore, recent theoretical developments in DEA-analysis are used to assess the gains from a number of potential mergers, and to decompose these gains into those from technological improvements, harmony effects and scale effects. It is found that technological inefficiency is the major source of inefficiency, mergers are only favoured through harmony gains, and for almost all potential mergers the scale effect seems absent or even negative.
Temperature dependent Luttinger surfaces
Creators: name: Ito, T.
name: Chainani, A.
name: Haruna, T.
name: Kanai, K.
name: Yokoya, T.
name: Shin, S.
name: Kato, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Luttinger surface of an organic metal (TTF-TCNQ), possessing charge order and spin-charge separation, is investigated using temperature dependent angle-resolved photoemission spectroscopy. The Luttinger surface topology, obtained from momentum distribution curves, changes from quasi-2D(dimensional) to quasi-1D with temperature. The high temperature quasi-2D surface exhibits 4$k_F$ charge-density-wave (CDW) superstructure in the TCNQ derived holon band, in the absence of 2$k_F$ order. Decreasing temperature results in quasi-1D nested 2$k_F$ CDW order in the TCNQ spinon band and in the TTF surface. The results establish the link in momentum-space between charge order and spin-charge separation in a Luttinger liquid.
description: 4 pages, 2 figures
Some recent results on evaluating Feynman integrals
Creators: name: Smirnov, V. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Some recent results on evaluating Feynman integrals are reviewed. The status of the method based on Mellin-Barnes representation as a powerful tool to evaluate individual Feynman integrals is characterized. A new method based on Groebner bases to solve integration by parts relations in an automatic way is described.
description: 5 pages, LaTeX, Conference Proceedings Radcor 2005
Tailoring femtosecond hot-electron pulses for ultrafast spin manipulation
Creators: name: Bergeard, Nicolas
name: Hehn, Michel
name: Carva, Karel
name: Baláž, Pavel
name: Mangin, Stéphane
name: Malinowski, Gregory
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have measured the hot-electron induced demagnetization of a [Co/Pt]2 multilayer in M(x nm)/Cu(100 nm)/[Co(0.6 nm)/Pt(1.1 nm)]2 samples depending on the nature of the capping layer M and its thickness x. We found out that a Pt layer is more efficient than [Co/Pt]X, Cu or MgO layers in converting IR photon pulses into hot-electron pulses at a given laser power. We also found out that the maximum relative demagnetization amplitude is reached for M(x) = Pt (7 nm). Our experimental results show qualitative agreement with numerical simulations based on the superdiffusive spin transport model. We concluded that the maximum relative demagnetization amplitude, which corresponds to the highest photon conversion into hot-electrons, is an interplay between the IR penetration depth and the hot-electron inelastic mean free path within the capping layer.
description: 10 pages, 3 figures
Coronal Mini-jets in an Activated Solar Tornado-like Prominence
Creators: name: Chen, Huadong
name: Zhang, Jun
name: De Pontieu, Bart
name: Ma, Suli
name: Kliem, Bernhard
name: Priest, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High-resolution observations from the $Interface~Region~Imaging~Spectrometer$ ($IRIS$) reveal the existence of a particular type of small solar jets, which arose singly or in clusters from a tornado-like prominence suspended in the corona. In this study, we perform a detailed statistical analysis of 43 selected mini-jets in the tornado event. Our results show that the mini-jets typically have: (1) a projected length of 1.0-6.0 Mm, (2) a width of 0.2-1.0 Mm, (3) a lifetime of 10-50 s, (4) a velocity of 100-350 km s$^{-1}$, and (5) an acceleration of 3-20 km s$^{-2}$. Based on spectral diagnostics and EM-Loci analysis, these jets seem to be multi-thermal small-scale plasma ejections with an estimated average electron density of $\sim$2.4 $\times$ 10$^{10}$ cm$^{-3}$ and an approximate mean temperature of $\sim$2.6 $\times$ 10$^{5}$ K. Their mean kinetic energy density, thermal energy density and dissipated magnetic field strength are roughly estimated to be $\sim$9 erg cm$^{-3}$, 3 erg cm$^{-3}$, and 16 G, respectively. The accelerations of the mini-jets, the UV and EUV brightenings at the footpoints of some mini-jets, and the activation of the host prominence suggest that the tornado mini-jets are probably created by fine-scale external or internal magnetic reconnections (a) between the prominence field and the enveloping or background field or (b) between twisted or braided flux tubes within the prominence. The observations provide insight into the geometry of such reconnection events in the corona and have implications for the structure of the prominence magnetic field and the instability that is responsible for the eruption of prominences and coronal mass ejections.
description: 17pages, 9 figures, 1 table, accepted for publication in ApJ
Additional file 1 of Halo score (temporal artery, its branches and axillary artery) as a diagnostic, prognostic and disease monitoring tool for Giant Cell Arteritis (GCA)
Creators: name: Sebastian, Alwin
name: Geest, Kornelis S. M. Van Der
name: Coath, Fiona
name: Gondo, Prisca
name: Kayani, Abdul
name: Mackerness, Craig
name: Hadebe, Bernard
name: Innes, Sue
name: Jackson, Jo
name: Dasgupta, Bhaskar
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Study schedule.
A Comparison of Agricultural Sector Models: CRAM, DRAM, SASM and the KVL Model
Creators: name: Wiborg, Torben
name: Wiborg, Torben
Publisher: name: Unknown
Year: 2000
Subjects: Agribusiness

description: Four different programming models dealing with the agricultural sectors in Canada, The Netherlands, Sweden and Denmark are analysed. The purpose is to construct a knowledge base for the development of a new sector model for Danish agriculture. This analysis has created a valuable set of resources for use in the development of the model.
Discrete Self-Similarity Between RR Lyrae Stars And Singly-Excited Helium Atoms
Creators: name: Oldershaw, R. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Classical variable stars called RR Lyrae stars have pulsating outer envelopes comprised of excited atoms. Here we demonstrate that the qualitative and quantitative properties of RR Lyrae variables and one subclass of their atomic scale constituents: singly-excited helium atoms undergoing transitions between Rydberg states, share a remarkable degree of self-similarity. In terms of masses, radii, oscillation periods, morphologies and kinematics the stellar and atomic analogues obey a simple set of discrete self-similar scaling equations. The concept of stellar/atomic self-similarity may prove useful in the search for a deeper understanding of both stellar and atomic systems.
description: 10 pages, 1 figure, 2 tables, final published version, comments welcome