cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MOESM5 of Interaction of camel Lactoferrin derived peptides with DNA: a molecular dynamics study
Creators: name: Pirkhezranian, Zana
name: Tahmoorespur, Mojtaba
name: Daura, Xavier
name: Monhemi, Hassan
name: Sekhavati, Mohammad
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 5: Figure S5. second replicate: Number of hydrogen bonds with DNA as function of simulation time (200â€‰ns). (A) CLFampin, (B) CLFcin, (C) CLFchimera.
First-principles hyperfine tensors for electrons and holes in GaAs and silicon
Creators: name: Philippopoulos, Pericles
name: Chesi, Stefano
name: Coish, W. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding (and controlling) hyperfine interactions in semiconductor nanostructures is important for fundamental studies of material properties as well as for quantum information processing with electron, hole, and nuclear-spin states. Through a combination of first-principles density-functional theory (DFT) and $\mathbf{k}\cdot\mathbf{p}$ theory, we have calculated hyperfine tensors for electrons and holes in GaAs and crystalline silicon. Accounting for relativistic effects near the nuclear core, we find contact hyperfine interactions for electrons in GaAs that are consistent with Knight-shift measurements performed on GaAs quantum wells and are roughly consistent with prior estimates extrapolated from measurements on InSb. We find that a combination of DFT and $\mathbf{k}\cdot\mathbf{p}$ theory is necessary to accurately determine the contact hyperfine interaction for electrons at a conduction-band minimum in silicon that is consistent with bulk Knight-shift measurements. For hole spins in GaAs, the overall magnitude of the hyperfine couplings we find from DFT is consistent with previous theory based on free-atom properties, and with heavy-hole Overhauser shifts measured in GaAs (and InGaAs) quantum dots. In addition, we theoretically predict that the heavy-hole hyperfine coupling to the As nuclear spins is stronger and almost purely Ising-like, while the (weaker) coupling to the Ga nuclear spins has significant non-Ising corrections. In the case of hole spins in silicon, we find (surprisingly) that the strength of the hyperfine interaction in the valence band is comparable to that in the conduction band and that the hyperfine tensors are highly anisotropic (Ising-like) in the heavy-hole subspace. These results suggest that the hyperfine coupling cannot be ruled out as a limiting mechanism for coherence ($T_2^{\ast}$) times recently measured for heavy holes in silicon quantum dots.
description: v1: 17 pages, 3 figures; v2: minor revisions/clarifications to address referee comments
Topological interpretation of the horizon temperature
Creators: name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A class of metrics $g_{ab}(x^i)$ describing spacetimes with horizons (and associated thermodynamics) can be thought of as a limiting case of a family of metrics $g_{ab}(x^i;λ)$ {\it without horizons} when $λ\to 0$. I construct specific examples in which the curvature corresponding $g_{ab}(x^i;λ)$ becomes a Dirac delta function and gets concentrated on the horizon when the limit $λ\to 0$ is taken, but the action remains finite. When the horizon is interpreted in this manner, one needs to remove the corresponding surface from the Euclidean sector, leading to winding numbers and thermal behaviour. In particular, the Rindler spacetime can be thought of as the limiting case of (horizon-free) metrics of the form [$g_{00}=ε^2+a^2x^2; g_{μν}=-δ_{μν}$] or [$g_{00} = - g^{xx} = (ε^2 +4 a^2 x^2)^{1/2}, g_{yy}=g_{zz}=-1]$ when $ε\to 0$. In the Euclidean sector, the curvature gets concentrated on the origin of $t_E-x$ plane in a manner analogous to Aharanov-Bohm effect (in which the the vector potential is a pure gauge everywhere except at the origin) and the curvature at the origin leads to nontrivial topological features and winding number.
description: Final version to appear in Mod.Phys.Letts.A; uses ws-mpla.cls; 9 pages; 2 figures; minor revision clarifying a few points
The vertical Na-O relation in the bulge globular cluster NGC 6553
Creators: name: Muñoz, C.
name: Villanova, S.
name: Geisler, D.
name: Cortés, C. C.
name: Bidin, C. Moni
name: Cohen, R. E.
name: Saviane, I.
name: Dias, B.
name: Tang, B.
name: Mauro, F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this article, we present a detailed chemical analysis of seven red giant members of NGC 6553 using high-resolution spectroscopy from VLT FLAMES. We obtained the stellar parameters (Teff, Log(g), vt, [Fe/H]) of these stars from the spectra, and we measured the chemical abundance for 20 elements, including light elements, iron-peak elements, alpha-elements and neutron-capture elements. The metallicities in our sample stars are consistent with a homogeneous distribution. We found a mean of [Fe/H]=-0.14+/-0.07 dex, in agreement with other studies. Using the alpha-elements Mg, Si, Ca and Ti we obtain the mean of [alpha/Fe]=0.11+/-0.05. We found a vertical relation between Na and O, characterized by a significant spread in Na and an almost non-existent spread in O. In fact, Na and Al are the only two light elements with a large intrinsic spread, which demonstrates the presence of Multiple Populations (MPs). An intrinsic spread in Mg is not detected in this study. The alpha, iron-peak and neutron capture elements show good agreement with the trend of the bulge field stars, indicating similar origin and evolution, in concordance with our previous studies for two other bulge GCs (NGC 6440 and NGC 6528).
description: 12 pages, 11 figures, 4 tables. Accepted for publication in MNRAS
Phenacoccus solenopsis Tinsley 1898
Creators: name: Mille, Christian
name: Henderson, Rosa C.
name: Cazères, Sylvie
name: Jourdan, Hervé
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Phenacoccus
Phenacoccus solenopsis

description: Phenacoccus solenopsis Tinsley, 1898
Phenacoccus solenopsis Tinsley, 1898: 47.
MATERIAL EXAMINED. — Païta County (La Tontouta, PNVF, Plateforme de Normalisation des Végétaux aux Frontières), 23. V.2006, on leaves of Solanum melongena, T. Parc coll., Christopher Hodgson det. (NZAC); Bourail County (Gouaro), 23.III.2007, on leaves of S. lycopersicon, S. Cazères coll., Christopher Hodgson det. (NZAC, CXMNC); Mont-Dore County (IAC, SRMH), 10.IV.2007, on leaves and twigs of Marsdenia nigriflora and leaves of Corchorus neocaledonicus, S. Cazères coll., Christopher Hodgson det. (NZAC, CXMNC); Païta County (greenhouses, Mr J.-B. Marchand Farm), 11. V.2007, on leaves and fruits of Capsicum annuum, P. Caplong coll., Christopher Hodgson det. (NZAC, CXMNC); La Foa County (P. Lecren property), 22.II.2010, on Tagetes patula, P. Lecren coll., Rosa C. Henderson det. (NZAC, CXMNC).
PUBLISHED RECORDS IN NEW CALEDONIA. — Hodgson et al. (2008).
DISTRIBUTION IN NEW CALEDONIA. — West Coast of Grande Terre.
OTHER RECORDS. — Western Africa, southern Asia, North America.
HOST- PLANTS IN NEW CALEDONIA. — Capsicum annuum, Corchorus neocaledonicus, Marsdenia nigriflora, Solanum lycopersicum, S. melongena, and on Tagetes patula.
NOTES. — This species was found in Saint-Louis, at the IAC SRMH in Mont-Dore County and also in the counties of Bourail, La Foa, Païta (La Tontouta), firstly in 2006. Not rated as an economic species, but as it is a recent introduction it should be monitored carefully in tomato greenhouses.
description: Published as part of Mille, Christian, Henderson, Rosa C., Cazères, Sylvie & Jourdan, Hervé, 2016, Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia, pp. 129-176 in Zoosystema 38 (2) on page 150, DOI: 10.5252/z2016n2a1, http://zenodo.org/record/4578222
First principles evaluation of fcc ruthenium for use in advanced interconnects
Creators: name: Philip, Timothy M.
name: Lanzillo, Nicholas A.
name: Gunst, Tue
name: Markussen, Troels
name: Cobb, Jonathan
name: Aboud, Shela
name: Robison, Robert R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: As the semiconductor industry turns to alternate conductors to replace Cu for future interconnect nodes, much attention as been focused on evaluating the electrical performance of Ru. The typical hexagonal close-packed (hcp) phase has been extensively studied, but relatively little attention has been paid to the face-centered cubic (fcc) phase, which has been shown to nucleate in confined structures and may be present in tight-pitch interconnects. Using \emph{ab initio} techniques, we benchmark the performance of fcc Ru. We find that the phonon-limited bulk resistivity of the fcc Ru is less than half of that of hcp Ru, a feature we trace back to the stronger electron-phonon coupling elements that are geometrically inherited from the modified Fermi surface shape of the fcc crystal. Despite this benefit of the fcc phase, high grain boundary scattering results in increased resistivity compared to Cu-based interconnects with similar average grain size. We find, however, that the line resistance of fcc Ru is lower than that of Cu below 21 nm line width due to the conductor volume lost to adhesion and wetting liners. In addition to studying bulk transport properties, we evaluate the performance of adhesion liners for fcc Ru. We find that it is energetically more favorable for fcc Ru to bind directly to silicon dioxide than through conventional adhesion liners such as TaN and TiN. In the case that a thin liner is necessary for the Ru deposition technique, we find that the vertical resistance penalty of a liner for fcc Ru can be up to eight times lower than that calculated for conventional liners used for Cu interconnects. Our calculations, therefore, suggest that the formation of the fcc phase of Ru may be a beneficial for advanced, low-resistance interconnects.
description: 8 pages, 4 figures, 3 tables
High Resolution Spectroscopy of Balmer-Dominated Shocks in the RCW 86, Kepler and SN 1006 Supernova Remnants
Creators: name: Sollerman, Jesper
name: Ghavamian, Parviz
name: Lundqvist, Peter
name: Smith, R. Chris
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report results from high resolution optical spectroscopy of three non-radiative galactic supernova remnants, RCW 86, Kepler's supernova remnant and SN 1006. We have measured the narrow component H-alpha line widths in Balmer-dominated filaments in RCW 86 and SN 1006, as well as the narrow component width in a Balmer-dominated knot in Kepler's SNR. The narrow component line widths measured in RCW 86 and Kepler's SNR show FWHM of 30-40 km/s, similar to what has been seen in other Balmer-dominated remnants. Of the remnants in our sample, SN 1006 is the fastest shock (~3000 km/s). The narrow component H-alpha and H-beta lines in this remnant have a FWHM of merely 21 km/s. Comparing the narrow component widths measured in our sample with those measured in other remnants shows that the width of the narrow component does not correlate in a simple way with the shock velocity. The implications for the pre-heating mechanism responsible for the observed line widths are discussed.
description: Accepted by A&A
Hydropsyche cebuensis Mey
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche cebuensis

description: Hydropsyche cebuensis Mey
 Hydropsyche cebuensis Mey, 1998a: 7.
 Type locality. Philippines (Cebu).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 83
Analysis of Ward identities in supersymmetric Yang–Mills theory
Creators: name: Ali, Sajid
name: Bergner, Georg
name: Gerber, Henning
name: Montvay, Istvan
name: Münster, Gernot
name: Piemonte, Stefano
name: Scior, Philipp
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 530 Physik

description: In numerical investigations of supersymmetric Yang–Mills theory on a lattice, the supersymmetric Ward identities are valuable for finding the critical value of the hopping parameter and for examining the size of supersymmetry breaking by the lattice discretisation. In this article we present an improved method for the numerical analysis of supersymmetric Ward identities, which takes into account the correlations between the various observables involved. We present the first complete analysis of supersymmetric Ward identities in N=1 supersymmetric Yang–Mills theory with gauge group SU(3). The results indicate that lattice artefacts scale to zero as O(a2) towards the continuum limit in agreement with theoretical expectations.
Hydropsyche talautensis Mey
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche talautensis

description: Hydropsyche talautensis Mey
 Hydropsyche talautensis Mey, 1999a: 143.
 Type locality. Indonesia (Talaud).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 84
Phase structure of lattice QCD for general number of flavors
Creators: name: Iwasaki, Y.
name: Kanaya, K.
name: Kaya, S.
name: Sakai, S.
name: Yoshie, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the phase structure of lattice QCD for the general number of flavors in the parameter space of gauge coupling constant and quark mass, employing the one-plaquette gauge action and the standard Wilson quark action. Performing a series of simulations for the number of flavors $N_F=6$--360 with degenerate-mass quarks, we find that when $N_F \ge 7$ there is a line of a bulk first order phase transition between the confined phase and a deconfined phase at a finite current quark mass in the strong coupling region and the intermediate coupling region. The massless quark line exists only in the deconfined phase. Based on these numerical results in the strong coupling limit and in the intermediate coupling region, we propose the following phase structure, depending on the number of flavors whose masses are less than $Λ_d$ which is the physical scale characterizing the phase transition in the weak coupling region: When $N_F \ge 17$, there is only a trivial IR fixed point and therefore the theory in the continuum limit is free. On the other hand, when $16 \ge N_F \ge 7$, there is a non-trivial IR fixed point and therefore the theory is non-trivial with anomalous dimensions, however, without quark confinement. Theories which satisfy both quark confinement and spontaneous chiral symmetry breaking in the continuum limit exist only for $N_F \le 6$.
description: RevTeX, 20 pages, 43 PS figures
Hydropsyche davisi Mey
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche davisi

description: Hydropsyche davisi Mey
 Hydropsyche davisi Mey, 1998a: 6.
 Type locality. Philippines (Negros).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 85
title: DeepGreen: Etablierung und Weiterentwicklung rechtssicherer Workflows zur effizienten Umsetzung von Open-Access-Komponenten in Lizenzvereinbarungen für wissenschaftliche Publikationen – Abschlussbericht
Creators: name: Bertelmann, Roland
name: Koch, Thorsten
name: Ceynowa, Klaus
name: Söllner, Konstanze
name: Christof, Jürgen
name: Rusch, Beate
name: Schäffler, Hildegard
name: Putnings, Markus
name: Pampel, Heinz
name: Kuberek, Monika
name: Boltze, Julia
name: Lohrum, Stefan
name: Retter, Regina
name: Höllerl, Annika
name: Faensen, Katja
name: Steffen, Ronald
name: Gross, Matthias
name: Hoffmann, Cornelia
name: Haoua, Marsa
Year: 2022

description: DeepGreen wurde vom 01.08.2018 bis zum 30.06.2021 in einer zweiten Projektphase von der Deutschen Forschungsgemeinschaft (DFG) gefördert. DeepGreen unterstützt Bibliotheken als Dienstleister für Hochschulen, außeruniversitäre Forschungseinrichtungen und die dort tätigen Wissenschaftler:innen dabei, Publikationen auf Open-Access-Repositorien frei zugänglich zu machen und fördert das Zusammenspiel von wissenschaftlichen Einrichtungen und Verlagen. An der zweiten Projektphase waren der Kooperative Bibliotheksverbund Berlin-Brandenburg, die Bayerische Staatsbibliothek, der Bibliotheksverbund Bayern, die Universitätsbibliotheken der Friedrich-Alexander-Universität Erlangen-Nürnberg und der Technischen Universität Berlin und das Helmholtz Open Science Office beteiligt. In dem Projekt wurde erfolgreich eine technische und organisatorische Lösung zur automatisierten Verteilung von Artikeldaten wissenschaftlicher Verlage an institutionelle und fachliche Repositorien entwickelt. In der zweiten Projektphase lag der Fokus auf der Erprobung der Datendrehscheibe in der Praxis und der Ausweitung auf weitere Datenabnehmer und weitere Verlage. Im Anschluss an die DFG-geförderte Projektlaufzeit ist DeepGreen in einen zweijährigen Pilotbetrieb übergegangen. Ziel des Pilotbetriebs ist es, den Übergang in einen bundesweiten Real-Betrieb vorzubereiten.
description: ZIB-Report; 21-37
Nuclear effects in high-energy neutrino interactions
Creators: name: Klein, Spencer R.
name: Robertson, Sally A.
name: Vogt, Ramona
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutrino telescopes like IceCube, KM3NeT and Baikal-GVD offer physicists the opportunity to study neutrinos with energies far beyond the reach of terrestrial accelerators. These neutrinos are used to study high-energy neutrino interactions and to probe the Earth through absorption tomography. Current studies of TeV neutrinos use cross sections which are calculated for free nucleons with targets which are assumed to contain equal numbers of protons and neutrons. Here we consider modifications of high-energy neutrino interactions due to two nuclear effects: modifications of the parton densities in the nucleus, referred to here as shadowing, and the effect of non-isoscalar targets, with unequal numbers of neutrons and protons. Both these effects depend on the interaction medium. Because shadowing is larger for heavier nuclei, such as iron, found in the Earth's core, it introduces a zenith-angle dependent change in the absorption cross section. These modifications increase the cross sections by 1-2\% at energies below 100 TeV (antishadowing), and reduce it by 3-4\% at higher energies (shadowing). Nuclear effects also alter the inelasticity distribution of neutrino interactions in water/ice by increasing the number of low inelasticity interactions, with a larger effect for $ν$ than $\barν$. These effects are particularly large in the energy range below a few TeV. These effects could alter the cross sections inferred from events with tracks originating within the active detector volume as well as the ratio $ν/\barν$ inferred from inelasticity measurements. The uncertainties in these nuclear effects are larger than the uncertainties on the free-proton cross sections and will thus limit the systematic precision of future high-precision measurements at neutrino telescopes.
Hydropsyche mangyanica Mey
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche mangyanica

description: Hydropsyche mangyanica Mey
 Hydropsyche mangyanica Mey, 2002: 170.
 Type locality. Philippines (Mindoro).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 89
Pseudococcus gilbertensis Beardsley 1966
Creators: name: Mille, Christian
name: Henderson, Rosa C.
name: Cazères, Sylvie
name: Jourdan, Hervé
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Pseudococcus
Pseudococcus gilbertensis

description: Pseudococcus gilbertensis Beardsley, 1966
Pseudococcus gilbertensis Beardsley, 1966: 441.
MATERIAL EXAMINED. — Mont-Dore County (Mr Champalou Farm), 8. V.2007, on roots of Polygala paniculata, P. Caplong coll., Rosa C. Henderson det. (NZAC).
PUBLISHED RECORDS IN NEW CALEDONIA. — This is the first record from New Caledonia.
DISTRIBUTION IN NEW CALEDONIA. — Grande Terre (Mont-Dore County).
OTHER RECORDS. — Kiribati, Bonin Islands.
HOST- PLANTS IN NEW CALEDONIA. — Polygala paniculata.
NOTE. — This is a recent introduction; it should be monitored as the species is also known to infest mangos (Watson 2002).
description: Published as part of Mille, Christian, Henderson, Rosa C., Cazères, Sylvie & Jourdan, Hervé, 2016, Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia, pp. 129-176 in Zoosystema 38 (2) on page 151, DOI: 10.5252/z2016n2a1, http://zenodo.org/record/4578222
Hydropsyche appendicularis Martynov
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche appendicularis

description: Hydropsyche appendicularis Martynov
 Hydropsyche appendicularis Martynov, 1931: 7.
 Type locality. China (Sichuan).
 New records: NEPAL: 4500’, Kathmandu, British Embassy, 20.v.–23.vi.1983 [Allen, Brendell, Robinson, Tuck] - 1 male (Brit.Mus. 1983-222, NHML); INDIA: Naini Tal, 6600’, 15.vi.1935 [J.A. Graham] - 1 male (NHML); Dehra Dun, 1400’, Exp. Khansrao, Khans River Em. 30.i.1936 [J.A. Graham] - 1 male (NHML).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 90
The frequency of occurrence of novae hosting an ONe white dwarf
Creators: name: Gil-Pons, P.
name: Garcia-Berro, E.
name: Jose, J.
name: Hernanz, M.
name: Truran, J. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we revisit the problem of the determination of the frequency of occurrence of galactic nova outbursts which involve an oxygen-neon (ONe) white dwarf. The improvement with respect to previous work on the subject derives from the fact that we use the results that our evolutionary calculations provide for the final mass and for the chemical profiles of intermediate-to-massive primary components of close binary systems. In particular, the final evolutionary stages, such as the carbon burning phase, have been carefully followed for the whole range of masses of interest. The chemical profiles obtained with our evolutionary code are of interest in determining the chemical composition of the ejecta after being processed through the thermonuclear runaway, although such other factors as the efficiency of the mixing between the accreted material and that of the underlying white dwarf must also be considered. In our calculations of the frequency of occurrence of nova outbursts involving an ONe white dwarf, we also take into account the observational selection effects introduced by the different recurrence times of the outbursts and by the spatial distribution of novae. In spite of the very different evolutionary sequences, we find that approximately 1/3 of the novae observed in outburst should involve an oxygen-neon white dwarf, in agreement with previous theoretical estimates.
description: 9 pages, 6 figures, accepted for publication in A&A
Deep learning-based survival prediction for multiple cancer types using histopathology images
Creators: name: Wulczyn, Ellery
name: Steiner, David F.
name: Xu, Zhaoyang
name: Sadhwani, Apaar
name: Wang, Hongwu
name: Flament, Isabelle
name: Mermel, Craig H.
name: Chen, Po-Hsuan Cameron
name: Liu, Yun
name: Stumpe, Martin C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Prognostic information at diagnosis has important implications for cancer treatment and monitoring. Although cancer staging, histopathological assessment, molecular features, and clinical variables can provide useful prognostic insights, improving risk stratification remains an active research area. We developed a deep learning system (DLS) to predict disease specific survival across 10 cancer types from The Cancer Genome Atlas (TCGA). We used a weakly-supervised approach without pixel-level annotations, and tested three different survival loss functions. The DLS was developed using 9,086 slides from 3,664 cases and evaluated using 3,009 slides from 1,216 cases. In multivariable Cox regression analysis of the combined cohort including all 10 cancers, the DLS was significantly associated with disease specific survival (hazard ratio of 1.58, 95% CI 1.28-1.70, p<0.0001) after adjusting for cancer type, stage, age, and sex. In a per-cancer adjusted subanalysis, the DLS remained a significant predictor of survival in 5 of 10 cancer types. Compared to a baseline model including stage, age, and sex, the c-index of the model demonstrated an absolute 3.7% improvement (95% CI 1.0-6.5) in the combined cohort. Additionally, our models stratified patients within individual cancer stages, particularly stage II (p=0.025) and stage III (p<0.001). By developing and evaluating prognostic models across multiple cancer types, this work represents one of the most comprehensive studies exploring the direct prediction of clinical outcomes using deep learning and histopathology images. Our analysis demonstrates the potential for this approach to provide prognostic information in multiple cancer types, and even within specific pathologic stages. However, given the relatively small number of clinical events, we observed wide confidence intervals, suggesting that future work will benefit from larger datasets.
MOESM4 of Interaction of camel Lactoferrin derived peptides with DNA: a molecular dynamics study
Creators: name: Pirkhezranian, Zana
name: Tahmoorespur, Mojtaba
name: Daura, Xavier
name: Monhemi, Hassan
name: Sekhavati, Mohammad
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Figure S4. Third replicate: COM distance analysis. (A) COM distances between CLFcin, CLFampin and CLFchimera and DNA along 200 ns. (B) Structures at times t = 0 (cyan) and t = 200 ns (purple): (B1) CLFcin-DNA, (B2) CLampin-DNA, and (B3) CLFchimera-DNA.
Neutral top-pion and lepton flavor violating processes
Creators: name: Yue, Chongxing
name: Yu, Dongqi
name: Liu, Lanjun
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion $π^{0}_{t}$ to the lepton flavor violating(LFV) processes $l_{i}\to l_{j}γ$ and $l_{i}\to l_{j}l_{k}l_{l}$. We find that the present experimental bound on $μ\to eγ$ gives severe constraints on the free parameters of $TC2$ models. Taking into account these constraints, we consider the processes $l_{i}\to l_{j}l_{k}l_{l}$ generated by top-pion exchange at the tree-level and the one loop level, and obtain $Br(μ\to 3e)\simeq 2.87\times 10^{-14}$, $1.1\times 10^{-15}\leq Br(τ\to 3e)\simeq Br(τ\to 2eμ)\leq 4.4 \times 10^{-15} $, $3.1\times 10^{-15} \leq Br(τ\to 2μe)\simeq Br(τ\to 3μ)\leq 1.5 \times 10^{-14}$ in most of the parameter space.
description: latex files,16 pages, 6 figures. Submitted to Phys. Rev. D
MOESM3 of Interaction of camel Lactoferrin derived peptides with DNA: a molecular dynamics study
Creators: name: Pirkhezranian, Zana
name: Tahmoorespur, Mojtaba
name: Daura, Xavier
name: Monhemi, Hassan
name: Sekhavati, Mohammad
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Figure S3. Second replicate: COM distance analysis. (A) COM distances between CLFcin, CLFampin and CLFchimera and DNA along 200 ns. (B) Structures at times t = 0 (cyan) and t = 200 ns (purple): (B1) CLFcin-DNA, (B2) CLampin-DNA, and (B3) CLFchimera-DNA.
Hydropsyche augeias Malicky & Chantaramongkol
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche augeias

description: Hydropsyche augeias Malicky & Chantaramongkol
 Hydropsyche augeias Malicky & Chantaramongkol, 2000: 821.
 Type locality. Thailand.
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 91
Phenacoccus parvus Morrison 1924
Creators: name: Mille, Christian
name: Henderson, Rosa C.
name: Cazères, Sylvie
name: Jourdan, Hervé
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Phenacoccus
Phenacoccus parvus

description: Phenacoccus parvus Morrison, 1924
Phenacoccus parvus Morrison, 1924: 147.
MATERIAL EXAMINED. — Mont-Dore County (Mr Champalou Farm), 21.III.2007, on Solanum lycopersicum, P. Caplong coll., Rosa C. Henderson det. (NZAC, CXMNC); same loc., 8. V.2007, on S. lycopersicum and Ageratum conyzoÏdes, same coll., Rosa C. Henderson det. (NZAC, CXMNC).
PUBLISHED RECORDS IN NEW CALEDONIA. — This species has been present in New Caledonia since 1974 (Williams & Watson 1988b).
DISTRIBUTION IN NEW CALEDONIA. — All over the New Caledonian Archipelago.
OTHER RECORDS. — West Indies, Central, North and South America, Pacific Ocean, Australasia, southern Europe, western and equatorial Africa.
HOST- PLANTS IN NEW CALEDONIA. — Williams & Watson (1988b) listed the species on Solanum tuberosum with a question mark.
NOTE. — It is not rated as an economic species, but it should be monitored as it is found on economic crops.
description: Published as part of Mille, Christian, Henderson, Rosa C., Cazères, Sylvie & Jourdan, Hervé, 2016, Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia, pp. 129-176 in Zoosystema 38 (2) on page 150, DOI: 10.5252/z2016n2a1, http://zenodo.org/record/4578222
Morphological characteristics, bioactive compounds content, and antioxidant activity of different accessions of African eggplant (Solanum anguivi Lam.)
Creators: name: Nakitto, Aisha Musaazi Sebunya
name: Byaruhanga, Yusuf Byenkya
name: Wagner, Anika E.
name: Muyonga, John H.
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2021

description: African eggplant (Solanum anguivi Lam.) fruits reportedly exhibit antidiabetic properties, possibly due to the presence of bioactive compounds. This study aimed to assess the bioactive compounds content (BCC) and antioxidant activity (AA) in the fruits of fourteen African eggplant accessions. The relationship between the fruit BCC and AA, and the plant (leaf, stem and fruit) morphological characteristics was determined. Morphological traits for the plant accessions were characterized based on existing Solanum species descriptors. Total phenolics, flavonoids, saponins, vitamin C and AA were determined by spectrophotometry, while total alkaloids were detected by gravimetry. HPLC was used for the quantification of phenolic compounds. Morphological characteristics, BCC and AA differed among the accessions. The fruit’s accessions contained total phenolics (8.0-12.4 mg gallic acid equivalent/g dry weight (DW)), saponins (51.1-124.8 mg diosgenin equivalent/g DW), alkaloids (81.4-127.7 mg/g DW), vitamin C (3.6-6.4 mg ascorbic acid equivalent/g DW), and flavonoids (0.9-2.1 mg quercetin equivalent (QE)/ g DW) and exhibited a high AA (1.2-4.6 mg QE/g DW). Amongst the quantified phenolic compounds, chlorogenic acid (21.4-301.3 μg/ g DW) had the highest content. Cluster analyses showed that morphological characteristics might be useful to predict accessions with similar BCC and AA. Accessions with high total phenolics provided the highest AA, and, therefore, may mediate health benefits.
description: Journal of Applied Botany and Food Quality, Vol. 94 (2021): Journal of Applied Botany and Food Quality
Integrability in heavy quark effective theory
Creators: name: Braun, Vladimir M.
name: Ji, Yao
name: Manashov, Alexander N.
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 530 Physik

description: It was found that renormalization group equations in the heavy-quark effective theory (HQET) for the operators involving one effective heavy quark and light degrees of freedom are completely integrable in some cases and are related to spin chain models with the Hamiltonian commuting with the nondiagonal entry C(u) of the monodromy matrix. In this work we provide a more complete mathematical treatment of such spin chains in the QISM framework. We also discuss the relation of integrable models that appear in the HQET context with the large-spin limit of integrable models in QCD with light quarks. We find that the conserved charges and the “ground state” wave functions in HQET models can be obtained from the light-quark counterparts in a certain scaling limit.
A Conceptual Design Study of a Compact Photon Source (CPS) for Jefferson Lab
Creators: name: Day, D.
name: Degtiarenko, P.
name: Dobbs, S.
name: Ent, R.
name: Hamilton, D. J.
name: Horn, T.
name: Keller, D.
name: Keppel, C.
name: Niculescu, G.
name: Reid, P.
name: Strakovsky, I.
name: Wojtsekhowski, B.
name: Zhang, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This document describes the technical design concept of a compact high intensity, multi-GeV photon source. Capable of producing 10^12 equivalent photons per second this novel device will provide unprecedented access to physics processes with very small scattering probabilities such as hard exclusive reactions on the nucleon. When combined with dynamic nuclear polarized targets, its deployment will result in a large gain in polarized experiment figure-of-merit compared to all previous measurements. Compared to a traditional bremsstrahlung photon source the proposed concept presents several advantages, most significantly in providing a full intensity in a small spot at the target and in taking advantage of the narrow angular spread associated with high energy bremsstrahlung compare to the wide angular distribution of the secondary radiation to minimize the operational prompt and activation radiation dose rates.
description: 16 pages, 20 figures
Massive scalar states localized on a de Sitter brane
Creators: name: Langlois, David
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a brane scenario with a massive scalar field in the five-dimensional bulk. We study the scalar states that are localized on the brane, which is assumed to be de Sitter. These localized scalar modes are massive in general, their effective four-dimensional mass depending on the mass of the five-dimensional scalar field, on the Hubble parameter in the brane and on the coupling between the brane tension and the bulk scalar field. We then introduce a purely four-dimensional approach based on an effective potential for the projection of the scalar field in the brane, and discuss its regime of validity. Finally, we explore the quasi-localized scalar states, which have a non-zero width that quantifies their probability of tunneling from the brane into the bulk.
description: 14 pages; 5 figures
Additional file 3 of NEAT1 promotes the malignant development of bladder cancer by regulating the miR-101/VEGF-C pathway in vitro and in vivo
Creators: name: Zhang, Huihui
name: Yu, Shuang
name: Fei, Kuilin
name: Huang, Zhongxin
name: Deng, Shidong
name: Xu, Hanfeng
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 3. Original images of western blots for Fig. 3E.
Hydropsyche doctersi Ulmer
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche doctersi

description: Hydropsyche doctersi Ulmer
 Hydropsyche doctersi Ulmer, 1951: 233.
 Type locality. Indonesia (Java).
 New records: INDIA: Manipur, Vangal, Chungpao, 22.v.1960 [F. Schmid] - 1 male (ROM, pinned with cleared abdomen in plastic genital vial); LAOS: Vientiane Prov., Phamom stream, 125m upstream Phahom Village, 363 m, 26.iv–3.v.2005, Malaise trap, loc 8 [N. Jönsson, T. Malm & B. Viklund leg.] - 1 male (in alcohol) (SMNH); Luang Namtha Prov., Nam Ha NBCA, Lakkhammai Village, Nam Leung stream, 749 m, 30.iv.2005, light trap, loc 29, [N. Jönsson, T. Malm & B. Viklund leg.] - 1 male (in alcohol) (SMNH).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 91
Correction exponents in the Gross–Neveu–Yukawa model at 1/N2
Creators: name: Manashov, Alexander N.
name: Strohmaier, Matthias
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: 530 Physik

description: We calculate the critical exponents ω± in the d -dimensional Gross–Neveu model in 1 / N expansion with 1/N2 accuracy. These exponents are related to the slopes of the β -functions at the critical point in the Gross–Neveu–Yukawa model. They have been computed recently to four loops accuracy. We checked that our results are in complete agreement with the results of the perturbative calculations.
Planococcus minor
Creators: name: Mille, Christian
name: Henderson, Rosa C.
name: Cazères, Sylvie
name: Jourdan, Hervé
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Planococcus
Planococcus minor

description: Planococcus minor (Maskell, 1897)
Dactylopius calceolariae minor Maskell, 1897: 322.
MATERIAL EXAMINED. — Bourail County (Gouaro), 12.X.2002, on roots of pumpkin (Cucurbita sp.), S. Cazères coll.; Mont-Dore County (IAC, SRMH), 10.IV.2007, on leaves and twigs of Marsdenia nigriflora, S. Cazères coll.; La Foa County (IAC, SRFP), 26.III.2009, on leaves and twigs of Annona sp., C. Mille coll.; Rosa C. Henderson det. (NZAC); Dumbéa County (Mr J.-G. Fong greenhouses), 9.XI.2011, on Rosa chinensis, C. Mille coll., Rosa C. Henderson det. (NZAC, CXMNC).
PUBLISHED RECORDS IN NEW CALEDONIA. — Williams & Watson (1988b) as “ P. pacificus Cox, 1981 ” (Williams & Watson 1988b) is a junior synonym of P. minor (Ben-Dov 2012b). This species was collected by N. L. H. Krauss in Yahoué (Dumbéa County) in 1983 and 1986 and in Nouméa in 1984 (D. J. Williams, pers. comm.).
DISTRIBUTION IN NEW CALEDONIA. — All over the New Caledonian Archipelago.
OTHER RECORDS. — Pacific Ocean, West Indies, Central, North and South Americas, Australasia, South-East Asia, Indian Ocean.
HOST- PLANTS IN NEW CALEDONIA. — Coffea spp. and Ficus spp. (Doug J. Williams, pers. comm.). Also known on Annona spp., Citrus spp., Cucurbita spp., Marsdenia nigriflora and Rosa chinensis.
NOTE. — Rated as an economic species. Many different ant genera attend this species (Williams & Watson 1988b).
description: Published as part of Mille, Christian, Henderson, Rosa C., Cazères, Sylvie & Jourdan, Hervé, 2016, Checklist of the scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) of New Caledonia, pp. 129-176 in Zoosystema 38 (2) on page 151, DOI: 10.5252/z2016n2a1, http://zenodo.org/record/4578222
"Square Root" of the Proca Equation: Spin-3/2 Field Equation
Creators: name: Kruglov, S. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: New equations describing particles with spin 3/2 are derived. The non-local equation with the unique mass can be considered as "square root" of the Proca equation in the same sense as the Dirac equation is related to the Klein-Gordon-Fock equation. The local equation describes spin 3/2 particles with three mass states. The equations considered involve fields with spin-3/2 and spin-1/2, i.e. multi-spin 1/2, 3/2. The projection operators extracting states with definite energy, spin, and spin projections are obtained. All independent solutions of the local equation are expressed through projection matrices. The first order relativistic wave equation in the 20-dimensional matrix form, the relativistically invariant bilinear form and the corresponding Lagrangian are given. Two parameters characterizing non-minimal electromagnetic interactions of fermions are introduced, and the quantum-mechanical Hamiltonian is found. It is proved that there is only causal propagation of waves in the approach considered.
description: 17 pages, corrections in Eqs. (50), (51)
Hydropsyche argos Malicky & Chantaramongkol
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche argos

description: Hydropsyche argos Malicky & Chantaramongkol
 Hydropsyche argos Malicky & Chantaramongkol, 2000: 799.
 Type locality. China (Zhejiang).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 100
Candidate Population III stellar complex at z=6.629 in the MUSE Deep Lensed Field
Creators: name: Vanzella, E.
name: Meneghetti, M.
name: Caminha, G. B.
name: Castellano, M.
name: Calura, F.
name: Rosati, P.
name: Grillo, C.
name: Dijkstra, M.
name: Gronke, M.
name: Sani, E.
name: Mercurio, A.
name: Tozzi, P.
name: Nonino, M.
name: Cristiani, S.
name: Mignoli, M.
name: Pentericci, L.
name: Gilli, R.
name: Treu, T.
name: Caputi, K.
name: Cupani, G.
name: Fontana, A.
name: Grazian, A.
name: Balestra, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We discovered a strongly lensed (μ>40) Lya emission at z=6.629 (S/N~18) in the MUSE Deep Lensed Field (MDLF) targeting the Hubble Frontier Field galaxy cluster MACS~J0416. Dedicated lensing simulations imply that the Lya emitting region necessarily crosses the caustic. The arc-like shape of the Lya extends 3 arcsec on the observed plane and is the result of two merged multiple images, each one with a de-lensed Lya luminosity L~30.8(>~35.0). The inferred rest-frame Lya equivalent width is EWo > 1120 A if the IGM transmission is T(IGM)<0.5. The low luminosities and the extremely large Lya EWo match the case of a Population~III star complex made of several dozens stars (~ 10^4 Msun) which irradiate a HII region crossing the caustic. While the Lya and stellar continuum are among the faintest ever observed at this redshift, the continuum and the Lya emissions could be affected by differential magnification, possibly biasing the EWo estimate. The aforementioned tentative HST detection tend to favor a large EWo, making such a faint Pop~III candidate a key target for the James Webb Space Telescope and Extremely Large Telescopes.
description: 5 pages, 3 figures and 1 table. Accepted for publication in MNRAS