cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Counteracting Tidal Circularization with the Grazing Envelope Evolution
Creators: name: Kashi, Amit
name: Soker, Noam
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We show that substantially enhanced mass loss at periastron passages, as is expected in the grazing envelope evolution (GEE), can compensate for the circularization effect of the tidal interaction in binary systems composed of an asymptotic giant branch (AGB) star and a main sequence secondary star. By numerically integrating the equations of motion we show that under our assumptions the binary system can maintain its high eccentricity as the AGB star evolves toward the post-AGB phase. Our results can explain the high eccentricity of some post-AGB intermediate binaries (post-AGBIBs), i.e., those with an orbital periods in the range of several months to few years. In the framework of the GEE, the extra energy to sustain a high mass loss rate comes from the accretion of mass from the giant envelope or its slow wind onto a more compact secondary star. The secondary star energizes the outflow from the AGB outer envelope by launching jets from the accretion disk.
description: Accepted for publication in MNRAS
Two-Particle Correlations and Meson-Antimeson Mixing Effects
Creators: name: Dass, G. V.
name: Grimus, W.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss 2-particle correlations which arise in the time evolution of C-odd and C-even meson--antimeson states of flavoured neutral mesons. In order to keep our discussion general, we do not use the Weisskopf -- Wigner approximation. Possible deviations from quantum-mechanical coherence effects are parameterized by a so-called decoherence parameter $ζ$. In particular, we study the $ζ$-dependence of the asymmetry of unlike and like-flavoured events which was recently observed experimentally in the $K^0 \bar{K}^0$ system. In this $ζ$-dependence, we point out some important general features which do not rely on the Weisskopf -- Wigner approximation. Some other related results are derived more generally than in the literature.
description: 12 pages, revtex, no figures
XENOPHOBIA IN SHAKESPEARE’S THE MERCHANT OF VENICE
Creators: name: Alizadeh, Farideh
Publisher: name: figshare
Year: 2018
Subjects: Performing Arts

description: The word xenophobia is a social phenomenon that is rooted in fear and dislike of strangers from other countries. Since art is a reflection of life, this social behaviour has been echoed in dramatic literature. Shakespeare’s plays as a beacon of classic drama, are samples of this reflection. The Merchant of Venice, Othello, The Tempest, Titus Andronicus, Antony and Cleopatraare classical examples of xenophobic reactions within societies toward aliens that are still very tangible. The Merchant of Venice is the most prominent work in terms of presenting foreign characters, different religions and groups. Therefore, this article attempts to identify xenophobia in behaviours of characters in The Merchant of Venice, so as to prove that the bases of xenophobia have not changed from the time of Shakespeare, and it has same roots. Social theories such as in-group, out-group and integrated threat theory ITT alongside analysis of the dialogues and events in The Merchant of Venice specify that elements like economy or Judaism can create conflicts and manifest as xenophobia in the play.
Additional file 2: of Identification of variants and therapeutic epitopes in HPV-33/HPV-58 E6 and E7 in Southwest China
Creators: name: He, Jiaoyu
name: Yang, Yasi
name: Chen, Zuyi
name: Liu, Yang
name: Bao, Shanfei
name: Zhao, Yun
name: Ding, Xianping
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Figure S1. Secondary structure prediction of HPV-33 E6 reference and variant sequence. Figure S2. Secondary structure prediction of HPV-33 E7 reference and variant sequence. Figure S3. Secondary structure prediction of HPV-58 E6 reference and variant sequence. Figure S4. Secondary structure prediction of HPV-58 E7 reference and variant sequence. (PDF 754 kb)
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0336
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0336, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0336, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Accelerator, reactor and atmospheric neutrino data: a three flavour oscillation analysis
Creators: name: Goswami, Srubabati
name: Kar, Kamales
name: Raychaudhuri, Amitava
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a three flavour analysis of the atmospheric, accelerator and reactor neutrino data from the Kamiokande, LSND and Bugey experiments respectively. Choosing the values of ${Δ{m}}^2$ obtained from two flavour fits of the first two experiments, the allowed ranges of the three generation mixing angles are determined. The accelerator experiments CHORUS and NOMAD are found to be most sensitive to regions of the allowed parameter space which correspond to genuine three generation solutions for the atmospheric neutrino anomaly.
description: Latex, 13 pages, 2 figures available on request
Dust modification of the plasma conductivity in the mesosphere
Creators: name: Pandey, B. P.
name: Vladimirov, S. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Relative transverse drift (with respect to the ambient magnetic field) between the weakly magnetized electrons and the unmagnetized ions at the lower altitude (80 km) and between the weakly magnetized ions and unmagnetized dust at the higher altitude (90 km) gives rise to the finite Hall conductivity in the Earth's mesosphere. If, on the other hand, the number of free electrons is sparse in the mesosphere and most of the negative charge resides on the weakly magnetized, fine, nanometre sized dust powder and positive charge on the more massive, micron sized, unmagnetized dust, the sign of the Hall conductivity due to their relative transverse drift will be opposite to the previous case. Thus the sign of the Hall effect not only depends on the direction of the local magnetic field but also on the nature of the charge carrier in the partially ionized dusty medium. As the Hall and the Ohm diffusion are comparable below 80 km, the low frequency long wavelength waves will be damped at this altitude with the damping rate typically of the order of few minutes. Therefore, the ultra--low frequency magnetohydrodynamic waves can not originate below 80 km in the mesosphere. However, above 80 km since Hall effect dominates Ohm diffusion the mesosphere can host the ultra--low frequency waves which can propagate across the ionosphere with little or, no damping.
description: 21 pages, 3 figures; to appear in the Journal of Atmospheric and Solar-Terrestrial Physics
Formatting and Editing of Analytical Material
Creators: name: Metelska, Alyona
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: The process of formatting and editing analytical material involves structuring and refining written content to enhance clarity, coherence, and effectiveness in conveying information. It encompasses various steps aimed at optimizing the presentation and quality of the material.200
Celastrina argiolus
Creators: name: Bonelli, Simona
name: Barbero, Francesca
name: Casacci, Luca Pietro
name: Cerrato, Cristiana
name: Balletto, Emilio
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lycaenidae
Celastrina
Celastrina argiolus

description: Celastrina argiolus (Linnaeus, 1758)
Papilio argiolus Linnaeus, 1758: 483.
FIRST RECORD FOR THE VALDIERI AREA. — Turati & Verity (1911).
CHOROTYPE. — Holarctic.
ECOLOGY. — Nemoral, lowland-lower montane, mesophilous, mesophilous.
EDIT PROJECT SAMPLING. — Not found.
description: Published as part of Bonelli, Simona, Barbero, Francesca, Casacci, Luca Pietro, Cerrato, Cristiana & Balletto, Emilio, 2015, The butterfly fauna of the Italian Maritime Alps: results of the EDIT project, pp. 139-167 in Zoosystema 37 (1) on page 151, DOI: 10.5252/z2015n1a6, http://zenodo.org/record/5154896
Subduction and atmospheric escape of Earth's seawater constrained by hydrogen isotopes
Creators: name: Kurokawa, Hiroyuki
name: Foriel, Julien
name: Laneuville, Matthieu
name: Houser, Christine
name: Usui, Tomohiro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The hydrogen isotopic (D/H) ratio reflects the global cycling and evolution of water on Earth as it fractionates through planetary processes. We model the water cycle taking seafloor hydrothermal alteration, chemical alteration of continental crust, slab subduction, hydrogen escape from the early Earth, and degassing at mid-ocean ridges, hot spots, and arcs into account. The differences in D/H ratios between present-day oceans, oceanic and continental crust, and mantle are thought to reflect isotopic fractionation through seafloor alteration, chemical alteration, and slab dehydration. However, if the speed of plate tectonics has been nearly constant through out Earth's history, the degassing and regassing rates are too small to reach the present-day D/H ratios. We show that (a) hydrogen escape from reduced early atmosphere, (b) secular net regassing, or (c) faster plate tectonics on early Earth is needed to reproduce the present-day D/H ratios of the water reservoirs. The low D/H ratio of Archean seawater at 3.8 Ga has previously been interpreted as a signature of (a) hydrogen escape, but we find it can also be explained either by (b) secular net regassing or by (c) faster plate tectonics on early Earth. The rates of hydrogen escape from early Earth and secular regassing on present-day Earth are constrained to be lower than 2.1 x 10^11 kg/yr and 3.9 x 10^11 kg/yr. Consequently, the volume of water in the present-day mantle could result entirely from the regassing through Earth's history. In that case, the volume of initial oceans could be 2 to 3 times larger than that of current Earth. We suggest that, in addition to the D/H ratio of Archean seawater, identifying the D/H ratios of both seawater and mantle throughout Earth's history would allow to distinguish these evolutionary scenarios.
description: 35 pages, 9 figures, accepted for publication in EPSL
The nucleation of δ phases triggered by the stacking faults in a single crystal superalloy
Creators: name: Cheng, Yuan
name: Zhao, Xinbao
name: Yue, Quanzhao
name: Xia, Wanshun
name: Pan, Qinghai
name: Zhou, Yu
name: Gu, Yuefeng
name: Zhang, Ze
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Chemical Sciences not elsewhere classified
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Here we investigated the nucleation of the Re, Ru-rich δ phase affected by stacking faults in the γ phase in a 4th generation Ni-based single crystal superalloy during the service at 800°C. The stacking faults in the γ phase were rich in Re and Ru, similar to the observed δ phase. And the stacking fault regions possessed a similar structure to the δ phase, promoting the transformation from γ phase to δ phase. Furthermore, the calculation results indicated that Ru had more significant promoting effects on the δ phase precipitation than Re, providing a reference for the alloy design.
On Ellipticity and Gauge Invariance in Euclidean Quantum Gravity
Creators: name: Avramidi, Ivan G.
name: Esposito, Giampiero
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Invariance principles determine many key properties in quantum field theory, including, in particular, the appropriate form of the boundary conditions. A crucial consistency check is the proof that the resulting boundary-value problem is strongly elliptic. In Euclidean quantum gravity, the appropriate principle seems to be the invariance of boundary conditions under infinitesimal diffeomorphisms on metric perturbations, and hence their BRST invariance. However, if the operator on metric perturbations is then chosen to be of Laplace type, the boundary-value problem for the quantized gravitational field fails to be strongly elliptic. A detailed proof is presented, and the corresponding open problems are discussed.
description: 9 pages, plain Tex, paper prepared for the Conference: Trends in Mathematical Physics, The University of Tennessee, Knoxville, October 14-17, 1998
Dark matter phase space densities
Creators: name: Madsen, Jes
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The low velocity part of a kinetic equilibrium dark matter distribution has higher phase space density and is more easily incorporated in formation of a low mass galaxy than the high velocity part. For relativistically decoupling fermions (bosons), this explains one (two) orders of magnitude of the observed trend, that phase space densities in dark matter halo cores are highest in the smallest systems, and loosens constraints on particle masses significantly. For non-relativistic decoupling and/or finite chemical potentials even larger effects may occur. It is therefore premature to dismiss dissipationless particle distributions as dark matter on the basis of phase space arguments.
description: Refs. updated, footnote added to match version to appear in Physical Review D (15 July 2001)
The Properties of Poor Groups of Galaxies: I. Spectroscopic Survey and Results
Creators: name: Zabludoff, Ann I.
name: Mulchaey, John S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use multi-fiber spectroscopy of 12 nearby, poor groups of galaxies to address whether the groups are bound systems or chance projections of galaxies along the line-of-sight, why the members of each group have not already merged to form a single galaxy, despite the groups' high galaxy densities, short crossing times, and likely environments for galaxy-galaxy mergers, and how galaxies might evolve in these groups, where the collisional effects of the intra-group gas and the tidal influences of the global potential are weaker than in rich clusters. We conclude the following. (1) The nine groups with diffuse X-ray emission (cf. Paper II) are bound systems with at least 20-50 group members. (2) Galaxies in each X-ray-detected group have not all merged together, because a significant fraction of the group mass lies outside of the galaxies and in a common halo. (3) Unlike cD galaxies in some rich clusters, the giant, brightest elliptical in each X-ray group lies in the center of the group potential, suggesting that such galaxies may form first in poor groups. (4) In some groups, the fraction and recent star formation histories of the early types are consistent with those in rich clusters, suggesting that the effects of cluster environment on these galaxies are relatively unimportant at the current epoch. (Abridged)
description: 58 pages, AASLaTeX with 9 figures. Table 1 available on request. To appear with Paper II in ApJ
Supplementary files
Creators: name: Jianpeng, Zhang
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 309999
subject: Other agricultural, veterinary and food sciences not elsewhere classified

description: By characterizing the detoxification gene complements in cotton bollworm, we demonstrate that genes involved in detoxification pathway are more likely to tandemly duplicate and show greater sequence divergence. In the process, transposons play an important role in the differentiation after gene duplication. Moreover, a duplicated cytochrome P450 genes is experimentally demonstrated to have innovatively evolved the ability to metabolize esfenvalerate. The significance of our finding is that it provides insights into the mechanisms of differentiation after gene duplications, and it also demonstrates neofunctionalization contributes to local adaptation.
Kohn-Luttinger superconductivity on two orbital honeycomb lattice
Creators: name: Lin, Yu-Ping
name: Nandkishore, Rahul M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by experiments on twisted bilayer graphene, we study the emergence of superconductivity from $\textit{weak}$ repulsive interactions in the Hubbard model on a honeycomb lattice, with both spin and orbital degeneracies, and with the filling treated as a tunable control parameter. The attraction is generated through the Kohn-Luttinger mechanism. We find, similar to old studies of single layer graphene, that the leading superconducting instability is in a $d$-wave pairing channel close to Van Hove filling, and is in an $f$-wave pairing channel away from Van Hove filling. The $d$-wave pairing instability further has a twelve-fold degeneracy while the $f$-wave pairing instability has a ten-fold degeneracy. We analyze the symmetry breaking perturbations to this model. Combining this with a Ginzburg-Landau analysis, we conclude that close to Van Hove filling, a spin singlet $d+id$ pairing state should form (consistent with several other investigations of twisted bilayer graphene), whereas away from Van Hove filling we propose an unusual spin and orbital singlet $f$-wave pairing state.
description: 10 pages, 3 figures. v3: Published version
Structural Characterisation and Engineering of the Single Disulfide-Directed β-Hairpin (SDH) Fold
Creators: name: BALASUBRAMANYAM CHITTOOR
Publisher: name: Monash University
Year: 2018
Subjects: Biophysics
Biological Engineering
Structural Biology

description: “This thesis examines the potential of single disulfide directed β-hairpin fold identified in a peptide contryphan-Vc1, from an Australian cone snail Conus victoriae as a peptide scaffold. It establishes different aspects of stability of contryphan-Vc1 and is shown to accept short epitopes without disrupting its structure. An attempt to enhance the SDH fold as a peptide scaffold is made by engineering an additional disulfide bridge in the contryphan-Vc1. This thesis also examines the lipid binding property of contryphan-Vc1 using dodecylphospocholine micelles and also tries to identify crucial residues for folding and maintenance of the SDH fold.”
Classification of Lipschitz simple function germs
Creators: name: Nguyen, Nhan
name: Ruas, Maria
name: Trivedi, Saurabh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: It is known that the bi-Lipschitz right classification of function germs admit moduli. In this article we introduce a notion called the Lipschitz simple function germs and present a full classification in the complex case. A surprising consequence of our result is that a function germ is Lipschitz modal if and only if it deforms to the smooth unimodal family of singularities called $J_{10}$ in Arnold's list.
description: 33 pages
A retrospective study to evaluate Hy’s Law, DrILTox ALF score, Robles-Diaz model, and a new logistic regression model for predicting acute liver failure in Chinese patients with drug-induced liver injury
Creators: name: Xiong, Xiaomei
name: Xu, Qing
name: Wang, Bin
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: To evaluate Hy’s law, DrILTox ALF Score, Robles-Diaz Model, and a new logistic regression model for predicting acute liver failure (ALF) in Chinese patients with drug-induced liver injury (DILI). We conducted a retrospective study among 514 hospitalized DILI patients from 2011 to 2020. Logistic regression analysis was used to develop a predictive model for ALF. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of these models were compared. Another 304 DILI patients were used for external validation. Twenty-six of 514 DILI patients progressed to ALF. Among these models, Hy’s law had 84.6% sensitivity, 59.8% specificity, 10.1% PPV, and 98.6% NPV. DrILTox ALF Score had 92.3% sensitivity, 51.8% specificity, 9.3% PPV, and 99.2% NPV, while Robles-Diaz Model had 50.0% sensitivity, 77.7% specificity, 10.7% PPV, and 96.7% NPV. The logistic regression model described as P = 1/(1+e(1.643 – 0.006* × TBIL (μmol/L) -– 1.302* × INR + 0.095* × ALB (g/L))) had 88.5% sensitivity, 73.1% specificity, 16.3% PPV, and 99.1% NPV at the cut-off of 0.04778 and kept 94.4% sensitivity, 66.8% specificity, 15.2% PPV, and 99.5% NPV in external validation. The logistic regression model provided superior performance than Hy’s law, DrILTox ALF Score, and Robles-Diaz Model for predicting DILI -related ALF.
Scolitantides orion
Creators: name: Bonelli, Simona
name: Barbero, Francesca
name: Casacci, Luca Pietro
name: Cerrato, Cristiana
name: Balletto, Emilio
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lycaenidae
Scolitantides
Scolitantides orion

description: Scolitantides orion (Pallas, 1771)
Papilio orion Pallas, 1771: 471.
FIRST RECORD FOR THE VALDIERI AREA. — Turati & Verity (1911).
CHOROTYPE. — Asiatic-European.
ECOLOGY. — Subnemoral, lower montane, thermophilous, xerophilous.
EDIT PROJECT SAMPLING. — Not found.
description: Published as part of Bonelli, Simona, Barbero, Francesca, Casacci, Luca Pietro, Cerrato, Cristiana & Balletto, Emilio, 2015, The butterfly fauna of the Italian Maritime Alps: results of the EDIT project, pp. 139-167 in Zoosystema 37 (1) on page 151, DOI: 10.5252/z2015n1a6, http://zenodo.org/record/5154896
Additional file 1 of The morphokinetic signature of human blastocysts with mosaicism and the clinical outcomes following transfer of embryos with low-level mosaicism
Creators: name: Zou, Yaoyu
name: Sui, Yilun
name: Fu, Jing
name: Ge, Naidong
name: Sun, Xiaoxi
name: Sun, Yijuan
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Virology

description: Additional file 1: Supplementary table 4. Clinical outcomes of the genotype of mosaicism after blastocyst transfers.
Propulsion in Gomphidae (Odonata) A comparative study of morphology and mechanics
Creators: name: Sandall, Emily
Publisher: name: figshare
Year: 2018
Subjects: subject: Anatomy
subject: Physiology
subject: FOS: Biological sciences

description: Clubtail dragonflies (Odonata: Gomphidae), one of the most diverse and cosmopolitan families of the dragonflies, face an array of selective pressures in order to burrow into a range of aquatic substrates for a large period of their lives and live in terrestrial habitats for a comparatively short timespan. In order to live in these varying habitats and aquatic substrates, Gomphidae exhibit extreme morphological diversity in their aquatic larval life stage relative to their terrestrial adult stage. The larval stage of the Gomphidae live by burrowing into the substrate composed of stones, leaves, or sand in the body of their freshwater habitat, propelling forward using fluid forces generated by gills in the rectum in order to leave their burrow and ambush their prey. An examination of the variation in the abdomen and rectal gills used for respiration and propulsion can provide a better understanding of the selective pressures within the family. Through visualization of the internal structure of several genera of Gomphidae and a sister lineage using microCT and analysis of musculature, the diversification of the larval abdomen is examined.
MATHICSE Technical Report : Finite element heterogeneous multiscale method for nonlinear monotone parabolic homogenization problems
Creators: name: Abdulle, Assyr
name: Huber, Martin Ernst
Publisher: name: Écublens, MATHICSE
Year: 2014

description: We propose a multiscale method based on a finite element heterogeneous multiscale method (in space) and the implicit Euler integrator (in time) to solve nonlinear monotone parabolic problems with multiple scales due to spatial heterogeneities varying rapidly at a microscopic scale. The multiscale method approximates the solution at the scale of interest at computational cost independent of the small scale by performing numerical upscaling (coupling of macro and micro finite element methods). Optimal a priori error estimates in the L^2(H^1) and C^0(L^2) norm are derived taking into account the error due to time discretization as well as macro and micro spatial discretizations. Further, we present numerical simulations to illustrate the theoretical error estimates and the applicability of the multiscale method to practical problems.
Quantum Transparency of Barriers for Structure Particles
Creators: name: Pen'kov, F. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Physics Education (physics.ed-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Penetration of two coupled particles through a repulsive barrier is considered. A simple mechanism of the appearance of barrier resonances is demonstrated that makes the barrier anomalously transparent as compared to the probability of penetration of structureless objects. It is indicated that the probabilities of tunnelling of two interacting particles from a false vacuum can be considerably larger than it was assumed earlier.
description: Revtex, 4 pages, 4 figures
Síntese de Resultados de Prospeções Arqueológicas no Centro de Portugal: Ourém, Tomar, Alvaiázere, Torres Novas, Constância e Barquinha (Projeto aprovado Direção Geraldo Património Cultural)
Creators: name: Figueiredo, Alexandra
name: Monteiro, Cláudio
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Archaeology
subject: Archaeology

description: Apresentado e aprovado pela Direção Geral do património Cultural, projeto PATA PIA. Relatório público.
X-ray absorption in the strong FeII narrow-line Seyfert 1 galaxy Mrk 507
Creators: name: Iwasawa, K.
name: Brandt, W. N.
name: Fabian, A. C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from spectral analysis of ASCA data on the NLS1 Mrk 507. This galaxy was found to have an exceptionally flat ROSAT spectrum among the NLS1s. The ASCA spectrum however shows a clear absorption feature in the energy band below 2 keV, which partly accounts for the flat spectrum observed with the ROSAT PSPC. The absorption is mainly due to cold gas with a column density of (2-3)E21 cm-2. A reanalysis of the PSPC data indicates that the absorber is slightly ionized, covers only part of the central source, or there is extra soft thermal emission from an extended region. There is also evidence that the X-ray absorption is complex; an edge feature marginally detected at 0.84 keV suggests the presence of an additional high ionization absorber which imposes a strong OVIII edge on the spectrum. After correction for the absorption, the photon index of the intrinsic continuum, 1.8, obtained from the ASCA data is quite similar to that of ordinary Seyfert 1 galaxies. Mrk 507 still has one of the flattest continuum slopes among NLS1, but is no longer exceptional. The strong optical FeII emission remains unusual in the light of the correlation between FeII strengths and steepness of soft X-ray slope.
description: 6 pages, 3 Postscript figures, to be published in MNRAS
Cooperative Adaptive Cruise Control for Connected Autonomous Vehicles by Factoring Communication-Related Constraints
Creators: name: Wang, Chaojie
name: Gong, Siyuan
name: Zhou, Anye
name: Li, Tao
name: Peeta, Srinivas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Emergent cooperative adaptive cruise control (CACC) strategies being proposed in the literature for platoon formation in the Connected Autonomous Vehicle (CAV) context mostly assume idealized fixed information flow topologies (IFTs) for the platoon, implying guaranteed vehicle-to-vehicle (V2V) communications for the IFT assumed. Since CACC strategies entail continuous information broadcasting, communication failures can occur in congested CAV traffic networks, leading to a platoon's IFT varying dynamically. To enhance the performance of CACC strategies, this study proposes the idea of dynamically optimizing the IFT for CACC, labeled the CACC-OIFT strategy. Under CACC-OIFT, the vehicles in the platoon cooperatively determine in real-time which vehicles will dynamically deactivate or activate the "send" functionality of their V2V communication devices to generate IFTs that optimize the platoon performance in terms of string stability under the ambient traffic conditions. Given the adaptive Proportional-Derivative (PD) controller with a two-predecessor-following scheme, and the ambient traffic conditions and the platoon size just before the start of a time period, the IFT optimization model determines the optimal IFT that maximizes the expected string stability. The optimal IFT is deployed for that time period, and the adaptive PD controller continuously determines the car-following behaviors of the vehicles based on the unfolding degeneration scenario for each time instant within that period. The effectiveness of the proposed CACC-OIFT is validated through numerical experiments in NS-3 based on NGSIM field data. The results indicate that the proposed CACC-OIFT can significantly enhance the string stability of platoon control in an unreliable V2V communication context, outperforming CACCs with fixed IFTs or with passive adaptive schemes for IFT dynamics.
description: the 23rd International Symposium on Transportation and Traffic Theory, ISTTT 23
Hydrodynamics of turbulent flows within arrays of circular cylinders
Creators: name: Da Costa Ricardo, Ana Margarida
Publisher: name: Lausanne, EPFL - LCH
Year: 2014

description: In rivers riparian vegetation can have not only strong interaction with the flow but also with the ecological services of the aquatic system. In wetlands and along riverbanks often tree-like vegetation with quite stiff trunks can be found. The study of the flow in the space between plant stems is highly relevant since it influences the deposition of suspended sediment and the transport of pollutants or nutrients. With her comprehensive experimental research study Mrs Dr. Ana Margarida da Costa Ricardo carried out a novel detailed spatial characterization, at the inter-stem scale, of the turbulent flow within arrays of emergent, rigid and cylindrical stems, randomly placed with constant and varying density in a flume. Mrs Dr. da Costa Ricardo performed detailed measurement of instantaneous velocities with a 2D Particle Image Velocimetry (PIV) and a 3D Laser Doppler Anemometry (LDA). Part of the data was treated with Double-Averaging Methodology (DAM), used as an up-scaling technique to deal with heterogeneous flows. Mrs Dr. da Costa Ricardo could reveal that the drag force per submerged stem length is not correlated directly with the stem areal number density and the stem Reynolds number. The drag force depends on the longitudinal variation of the stem areal number-density. It could be observed that the decrease of the latter is associated to larger flow resistance and that the drag coefficient increases with the relative roughness, revealing an influence of the bed on the definition of the flow structure. The importance of vortex shedding and unsteady separation of the flow on the stems could be highlighted. Finally Mrs Dr. da Costa Ricardo gives a new insight in the dissipation rate of turbulent kinetic energy (TKE). She could contribute significantly to a better understanding of the complex flow within random arrays of rigid and emergent stems, at the inter-stem scale regarding flow resistance, budget of TKE and computation of dissipation rate of TKE.
Learning Domain-Sensitive and Sentiment-Aware Word Embeddings
Creators: name: Shi, Bei
name: Fu, Zihao
name: Bing, Lidong
name: Lam, Wai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Word embeddings have been widely used in sentiment classification because of their efficacy for semantic representations of words. Given reviews from different domains, some existing methods for word embeddings exploit sentiment information, but they cannot produce domain-sensitive embeddings. On the other hand, some other existing methods can generate domain-sensitive word embeddings, but they cannot distinguish words with similar contexts but opposite sentiment polarity. We propose a new method for learning domain-sensitive and sentiment-aware embeddings that simultaneously capture the information of sentiment semantics and domain sensitivity of individual words. Our method can automatically determine and produce domain-common embeddings and domain-specific embeddings. The differentiation of domain-common and domain-specific words enables the advantage of data augmentation of common semantics from multiple domains and capture the varied semantics of specific words from different domains at the same time. Experimental results show that our model provides an effective way to learn domain-sensitive and sentiment-aware word embeddings which benefit sentiment classification at both sentence level and lexicon term level.
description: 11 pages, published in ACL2018
Sediment transport and flow conditions in steep rivers with large immobile boulders
Creators: name: Ghilardi, Tamara
Publisher: name: Lausanne, EPFL - LCH
Year: 2014

description: In steep mountain rivers, morphological features such as large mostly immobile boulders, strongly influence flow behavior and bedload transport. Without taking into account these large immobile boulders, which are acting as macro-roughness elements, classical bedload transport formula largely overestimate the sediment volume transported. The effect of randomly distributed boulders creating a cascade morphology on the sediment transport capacity and bedload fluctuations in steep mountain channels was studied for the first time by Dr. Tamara Ghilardi with systematic laboratory experiments. A wide grain size distribution was used in the experiments for the movable bedload material present between the large boulders, as it can be found in typical alpine torrents. Boulder size and density was varied in the experiments using shapes of boulders like the ones found in nature. Special attention was also given for the first time on the evolution of the sediment transport characterized by bedload pulses. This allows a new insight on the sediment transport processes in steep channels having large immobile boulders. Finally a new sediment transport formula is suggested which takes into account the presence of such large boulders.
Unitarity and the QCD-improved dipole picture
Creators: name: McDermott, M.
name: Frankfurt, L.
name: Guzey, V.
name: Strikman, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: As a consequence of QCD factorization theorems, a wide variety of inclusive and exclusive cross sections may be formulated in terms of a universal colour dipole cross section at small $x$. It is well known that for small transverse size dipoles this cross section is related to the leading-log gluon density. Using the measured pion-proton cross section as a guide, we suggest a reasonable extrapolation of the dipole cross section to the large transverse size region. We point out that the observed magnitude and small $x$ rise of the gluon density from conventional fits implies that the DGLAP approximation has a restricted region of applicability. We found that `higher twist' or unitarity corrections are required in, or close to, the HERA kinematic region, even for small `perturbative' dipoles for scattering at central impact parameters. This means that the usual perturbative leading twist description, for moderate virtualities, $1 < Q^2 < 10$ GeV$^2$, has rather large `higher twist' corrections at small $x$. In addition, for these virtualities, we also find sizeable contributions from large non-perturbative dipoles ($b \gsim 0.4$ fm) to $F_2$, and also to $F_L$. This also leads to deviations from the standard leading twist DGLAP results, at small $x$ and moderate $Q^2$. Our model also describes the low $Q^2$ data very well without any further tuning. We generalize the Gribov unitarity limit for the structure functions of a hadron target to account for the blackening of the interaction at central impact parameters and to include scattering at peripheral impact parameters which dominate at extremely large energies.
description: Final version, 38 pages, 16 figures, 1 table. A successful comparison to all low Q^2 HERA data is included. The discussion has been completely rewritten and extended to include both a detailed comparison with other models for the dipole cross section and also a new section on the approach to the black limit in DIS, including various new predictions. 23 new references have been added and several figures changed
Influence of air entrainment on rock scour development and block stability in plunge pools
Creators: name: Duarte, Rafael
Publisher: name: Lausanne, EPFL - LCH
Year: 2015

description: Rock scour occurring near dam foundations due to high-velocity jets of spillways impinging into the plunge pool is a major concern regarding dam safety. Scour in fractured rock resulting from high-velocity jet impact is a complex phenomenon, which involves the three phases: water, air and rock. Since 1998, the Laboratory of Hydraulic Constructions (LCH) of the Ecole Polytechnique Fédérale de Lausanne (EPFL) is conducting research in order to better understand the physical processes that contribute to rock scour. An innovative experimental facility, which can reproduce prototype jet velocities, was built and continuously improved. With the help of this experimental set-up, a new, completely physically based engineering model has been developed for the prediction of the ultimate scour depth of jointed rock, called Comprehensive Scour Method (CSM). The impact of high-velocity plunging jets produce highly dynamic pressures at the pool bottom, which are transferred into rock joints by transient flow governed by the propagation of pressure waves. The latter is strongly influenced by the air content in the plunge pool and the underlying rock fissures. Dr. Rafael Duarte studied for the first time the effect of active jet aeration on the scour process in fractured rock. Systematic experiments allowed assessing the response of a block in a plunge pool impacted by high-velocity jets having different amount of active aeration. He could show that the air entrained by the jet influences the pressures on the bottom by two opposed effects. On one hand, the air-water mixture reduces the apparent density of the jet and thus its momentum. The kinetic energy per unit volume reaching the pool bottom is lower and consequently the pressures are also lower compared to similar clear-water jet. On the other hand, the air bubbles reduce the shear stress of the diffusing jet in the plunge pool. The velocity decay of aerated jets is therefore less resulting in higher velocities reaching the bottom, and thus higher pressures. Which of the two effects will be stronger depends above all on the pool depth. Based on the experimental study and a comprehensive analysis of the results Dr. Duarte could enhance the Comprehensive Scour Method CSM in order to include active air entrainment at jet issuance.
Hydraulic-hydrologic model for the Zambezi River using satellite data and artificial intelligence techniques
Creators: name: Gamito de Saldanha Calado Matos, José Pedro
Publisher: name: Lausanne, EPFL - LCH
Year: 2015

description: The development of hydraulic-hydrologic models is a challenge in the case of large catchment areas with scarce or erroneous measurement data and observations. With his study Mr. Dr. José Pedro Matos made several original contributions in order to overcome this challenge. The scientific developments were applied at Zambezi River basin in Africa in the framework of the interdisciplinary African Dams research project (ADAPT). First of all, procedures and selection criteria for satellite data regarding topography, rainfall, land use, soil types and cover had to be developed. With the goal to extend the time scope of the analysis, Dr. Matos introduced a novel Pattern-Oriented Memory (POM) historical rainfall interpolation methodology. When POM interpolated rainfall is applied to hydrologic models it effectively opens up new possibilities related to extended calibration and the simulation of historical events, which would otherwise be difficult to exploit. A new scheme for rainfall aggregation was proposed, based on hydraulic considerations and easily implemented resorting to remote sensing data, which was able to enhance forecasting results. Dr. Matos used machine-learning models in an innovative way for discharge forecast. He compared the alternative models (e.g. Autoregressive Moving-Average (ARMA), Artificial Neural Networks (ANN) and Support-Vector Regression (SVR)). Dr. Matos made then significant contributions to the enhancement of rainfall aggregation techniques and the study of limitations inherent to SVR forecasting model. He proposed also a novel method for developing empirical forecast probability distributions. Finally Dr. Matos could successfully calibrate, probably for the first time, a daily hydrological model covering the whole Zambezi River basin (ZRB).
Lattice Theoretical Approach in Strongly Correlated Electron Systems
Creators: name: Lee, Mu-Kun
name: Chern, Chyh-Hong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effective lattice models in strongly correlated electron systems are \emph{derived} in particular for the cuprate superconductors, that incorporate the quantum fluctuations of the spin Berry's phase and the antiferromagnetic fluctuation. Consistent with the field-theoretical approach, the density modulation, the weak ferromagnetism, and the superconductivity are reproduced. We discussed the pros and cons of the effective-model approach and demonstrate that both positive and negative Hubbard model are the effective models subject to the occurrence of the quantum fluctuations of the correlation degrees of freedom.
description: 10 pages, 2 figures
Muon Bremsstrahlung and Muonic Pair Production in Air Showers
Creators: name: Cillis, A.
name: Sciutto, S. J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The objective of this work is to report on the modifications in air shower development due to muon bremsstrahlung and muonic pair production. In order to do that we have implemented new muon bremsstrahlung and muonic pair production procedures in the AIRES air shower simulation system, and have used it to simulate ultra high energy showers in different conditions. The influence of the mentioned processes in the global development of the air shower is important for primary particles of large zenith angles, while they do not introduce significant changes in the position of the shower maximum.
description: To be presented at the International Symposium on Very High Energy Cosmic Ray Interactions XI
Seventh Thing: Supervisor Relationships
Creators: name: HOWELL, KATE
name: BUTT, DANNY
Publisher: name: The University of Melbourne
Year: 2024
Subjects: classificationCode: 460909
subject: Information systems philosophy, research methods and theory

description: It was the best of times, it was the worst of times…Charles Dickens, A Tale of Two CitiesCharles Dickens may have been describing a period of great upheaval and change in European history, but the quote could equally be applied to Graduate Research (GR) candidature. For both supervisor and graduate researcher, the journey through candidature is a serious undertaking, where both embark on a path of research which ultimately leads to a submitted thesis. The path of candidature is filled with trials and tribulations and undoubtedly changes both supervisor and GR in different ways as the research emerges.This ‘research thing,’ authored by Kate Howell, celebrates the research journey of supervisor and GR and gives advice on how to set up for and conduct a functional supervisory relationship. This advice is for both GRs and their supervisors and is taken from the literature and our understandings of best practice drawn from national and international universities.