cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Cahiers de lexicologie. 2007-1, n° 90
title: Les mots grammaticaux
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2012
Subjects: subject: Lexique
subject: Lexicographie
subject: Sémantique
subject: Traduction
subject: Linguistique historique

description: Les Cahiers de lexicologie, revue internationale de lexicologie et de lexicographie, s'intéressent au lexique dans ses relations avec les autres composantes de la langue (syntaxe, sémantique, morphologie, phonologie, discours…), tant du point de vue théorique que de leurs applications, notamment pour ce qui concerne le traitement informatique de la langue.
description: The Cahiers de lexicologie, international review of lexicology and lexicography, studies vocabulary in its relation to other aspects of language (syntax, semantics, morphology, phonology, speech...), both from a theoretical point of view and in practical applications, notably concerning computer treatment of language.
A spectrin-like protein in bovine retinal rod photoreceptor outer segments as defined by monoclonal antibodies
Creators: name: Wong, Simon Yuk Chun
Publisher: name: University of British Columbia
Year: 2010

description: Biochemical and immunological studies indicate that rod outer segments (ROS) of bovine photoreceptor cells contain a Mr 240,000 polypeptide related to the ∝-subunit of red blood cell (RBC) spectrin. With the use of sodium dodecyl sulfate gel electrophoresis in conjunction with the immunoblotting technique, monoclonal antibody 4B2 was found to bind to a Mr 240,000 polypeptide in ROS that is distinct from the prominent Mr 220,000 concanavalin A binding glycoprotein. The Mr 240,000 polypeptide is highly susceptible to degradation by endogenous proteases. It does not appear to be an integral membrane protein but is tightly membrane associated since it can be partially extracted from ROS membranes with urea in the absence of detergent. The 4B2 antibody cross-reacted with RBC ghost membranes and bovine brain microsomal membranes. Radioimmune assays and immunoblotting analysis of purified bovine RBC spectrin further revealed that the 4B2 antibody predominantly labelled the ∝-chain of RBC spectrin having an apparent Mr of 240,000. Monoclonal antibody 3A6 was found to bind to a polypeptide with a slightly lower Mr than the 4B2-specific polypeptide. It is also highly susceptible to degradation by endogenous proteases, but unlike the 4B2 antibody, it predominantly labelled the β-chain of RBC spectrin having an apparent M of 220,000. Polyclonal anti-spectrin antibodies that bound to both the ∝ - and β-chain of RBC spectrin predominantly labelled a Mr 240,000 polypeptide of ROS membranes. Two faintly labelled bands in the Mr range of 210,000-220,000 were also observed. These components may represent variants of the β -chain of spectrin that are weakly cross-reacting or present in smaller quantities than the ∝-chain. Immunocytochemical labelling studies using the 4B2 antibody and immunogold-dextran markers indicated that the ROS spectrin-like protein is preferentially localized in the region where the discs come in close contact to the plasma membrane of ROS. Immunoblotting analysis indicated that rhodopsin and peripherin which constitute over 90% of total disc membrane proteins were selectively solubilized in Triton X-100, whereas a set of polypeptides including the 4B2-specific polypeptide and the Mr 220,000 concanavalin A-binding glycoprotein was only partially soluble. Electron microscopy of a negatively stained Triton-extracted ROS pellet revealed a filamentous network. These studies indicate that ROS contain a protein related to RBC spectrin, which may constitute a major component of a filamentous network lining the inner surface of the ROS plasma membrane as previously seen by electron microscopy. This membrane skeletal system may serve to stabilize the ordered ROS structure and maintain a constant distance between the rim region of the discs and the plasma membrane.
Nonperturbative equation of state of quark-gluon plasma. Applications
Creators: name: Komarov, E. V.
name: Simonov, Yu. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The vacuum-driven nonperturbative factors $L_i$ for quark and gluon Green's functions are shown to define the nonperturbative dynamics of QGP in the leading approximation. EoS obtained recently in the framework of this approach is compared in detail with known lattice data for $μ=0$ including $P/T^4$, $ε/T^4$, $\frac{ε-3P}{T^4}$. The basic role in the dynamics at $T\la 3T_c$ is played by the factors $L_i$ which are approximately equal to the modulus of Polyakov line for quark $L_{fund}$ and gluon $L_{adj}$. The properties of $L_i$ are derived from field correlators and compared to lattice data, in particular the Casimir scaling property $L_{adj} =(L_{fund})^{\frac{C_2(adj)}{C_2(fund)}}$ follows in the Gaussian approximation valid for small vacuum correlation lengths. Resulting curves for $P/T^4$, $ε/T^4$, $\frac{ε-3P}{T^4}$ are in a reasonable agreement with lattice data, the remaining difference points out to an effective attraction among QGP constituents.
description: 20 pages, 6 figures
J/psi Production in an Equilibrating Partonic System
Creators: name: xu, Xiao-Ming
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Any color singlet or octet ccbar pair is created at short distances and then expands to a full size of J/psi. Such a dynamical evolution process is included here in calculations for the J/psi number distribution as a function of transverse momentum and rapidity in central Au-Au collisions at both RHIC and LHC energies. The ccbar pairs are produced in the initial collision and in the partonic system during the prethermal and thermal stages through the partonic channels ab to ccbar [{2S+1}L_J] and ab to ccbar [{2S+1}L_J]x, and then they dissociate in the latter two stages. Dissociation of ccbar in the medium occurs via two reactions: (a) color singlet ccbar plus a gluon turns to color octet ccbar, (b) color octet ccbar plus a gluon persists as color octet. There are modest yields of ccbar in the prethermal stage at RHIC energy and through the reactions ab to ccbar [{2S+1}L_J] at LHC energy for partons with large average momentum in the prethermal stage at both collider energies and in the thermal stage at LHC energy. Production from the partonic system competes with the suppression of the initial yield in the deconfined medium. Consequently, a bulge within -1.5
description: 36 pages, 24 figures
Au2Si20: a honeycomb-shaped structure with short Au−Au single bond at the centre coordinated by twelve Si5 pentagons and reinforced by strong Au−Si interactions and aromaticity
Creators: name: Lu, Sheng-Jie
name: Wu, Li-Shun
name: Yin, Bao-Hua
name: Lin, Feng
name: Chao, Ming-Yong
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Investigating the structures and properties of large-sized silicon clusters doped with multiple Au atoms can provide valuable microscopic information for gold-catalyzed high-quality Si nanowire and Au−Si alloying reactions, and also for the production of cluster-assembled functional materials. In this work, a quantum chemical investigation on the structural and electronic properties of double Au atoms doped Si20 cluster using density functional theory calculations was performed. The lowest-lying isomers of Au2Si20−/0/+ (The meaning of the acronym: Au2Si20−/0/+ refers to Au2Si20 cluster with a negative charge, neutral state, and a positive charge, respectively.) were found to all adopt a C2h symmetric Au2-endohedral honeycomb-shaped structure consisting of twelve Si5 pentagons. Interestingly, in the anionic, neutral, and cationic Au2Si20, twelve Si5 pentagons can be stabilised by two Au atoms. The two Au atoms in Au2Si20−/0/+ tend to occupy high coordinate sites and exhibit strong aurophilic interactions. In addition, the Au−Si bonds show both covalent and ionic bonding characters. Moreover, Au2Si20−, Au2Si20, and Au2Si20+ are all aromatic.
Additional file 8 of A novel signature to predict thyroid cancer prognosis and immune landscape using immune-related LncRNA pairs
Creators: name: Song, Bo
name: Tian, Lijun
name: Zhang, Fan
name: Lin, Zheyu
name: Gong, Boshen
name: Liu, Tingting
name: Teng, Weiping
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: Additional file 8: Table S3. The P value of Comparing Risk Sore and Tumor Infiltrating Immune Cells.
Spin-orbit coupling mediated spin torque in a single ferromagnetic layer
Creators: name: Matos-Abiague, Alex A.
name: Rodriguez-Suarez, R. L.
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: ferromagnetic materials , magnetization , spin-orbit interaction
subject: 530 Physik
subject: 420 Englisch
subject: 75.60.Jk
subject: 75.75.+a
subject: 72.25.-b
subject: 72.10.-d

description: By considering a linear in momentum but otherwise arbitrary spin-orbit coupling (SOC), we derive a simple analytical expression for the current-driven spin torque in a single ferromagnetic layer. Explicit forms of the spin torque are given for structures with different SOC fields, in dependence of strain effects, growth direction, and/or symmetry under spatial inversion. The Landau-Lifshitz-Gilbert equation including the effects of the SOC mediated spin torque on the magnetization dynamics is briefly discussed.
Anonymous and secret communication in quantum networks
Creators: name: Thalacker, Christopher
name: Hahn, Frederik
name: de Jong, Jarn
name: Pappa, Anna
name: Barz, Stefanie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Secure communication is one of the key applications of quantum networks. In recent years, following the demands for identity protection in classical communication protocols, the need for anonymity has also emerged for quantum networks. Here, we demonstrate that quantum physics allows parties - besides communicating securely over a network - to also keep their identities secret. We implement such an anonymous quantum conference key agreement by sharing multipartite entangled states in a quantum network. We demonstrate the protocol with four parties and establish keys in subsets of the network - different combinations of two and three parties - whilst keeping the participating parties anonymous. We additionally show that the protocol is verifiable and run multiple key generation and verification routines. Our work thus addresses one of the key challenges of networked communication: keeping the identities of the communicating parties private.
Complete Set of Polarization Transfer Observables for the $^{12}{\rm C}(p,n)$ Reaction at 296 MeV and 0$^{\circ}$
Creators: name: Dozono, M.
name: Wakasa, T.
name: Ihara, E.
name: Asaji, S.
name: Fujita, K.
name: Hatanaka, K.
name: Ishida, T.
name: Kaneda, T.
name: Matsubara, H.
name: Nagasue, Y.
name: Noro, T.
name: Sakemi, Y.
name: Shimizu, Y.
name: Takeda, H.
name: Tameshige, Y.
name: Tamii, A.
name: Yamada, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A complete set of polarization transfer observables has been measured for the $^{12}{\rm C}(p,n)$ reaction at $T_p=296 {\rm MeV}$ and $θ_{\rm lab}=0^{\circ}$. The total spin transfer $Σ(0^{\circ})$ and the observable $f_1$ deduced from the measured polarization transfer observables indicate that the spin--dipole resonance at $E_x \simeq 7 {\rm MeV}$ has greater $2^-$ strength than $1^-$ strength, which is consistent with recent experimental and theoretical studies. The results also indicate a predominance of the spin-flip and unnatural-parity transition strength in the continuum. The exchange tensor interaction at a large momentum transfer of $Q \simeq 3.6 {\rm fm}^{-1}$ is discussed.
description: 4 pages, 4 figures
Role of a spin-flip scatterer in a magnetized Luttinger liquid
Creators: name: Araujo, M. A. N
name: Berakdar, J.
name: Dugaev, V. K.
name: Vieira, V. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the spin-dependent scattering of charge carriers in a magnetized one dimensional Luttinger liquid from a localized non-homogeneous magnetic field, which might be brought about by the stray field of magnetic tip near a uniform liquid, or by a transverse domain wall (DW) between two oppositely magnetized liquids. From a renormalization group treatment of the electron interactions we deduce scaling equations for the transmission and reflection amplitudes as the bandwidth is progressively reduced to an energy scale set by the temperature. The repulsive interactions dictate two possible zero temperature insulator fixed points: one in which electrons are reflected in the same spin channel and another where the electron spin is reversed upon reflection. In the latter case, a finite spin current emerges in the absence of a charge current at zero temperature and the Friedel oscillations form a transverse spiraling spin density. Adding a purely potential scattering term has no effect on the fixed points of a uniformly magnetized liquid. For a DW we find that the introduction of potential scattering stabilizes the spin-flip insulator phase even if the single-particle spin-flip scattering produced by the DW is arbitrarily weak. The potential can be induced externally, e.g. by a local gate voltage or a constriction, providing a means for controlling the transport properties of the wire.
description: 6 pages, 2 figures
Learning from compressed observations
Creators: name: Raginsky, Maxim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The problem of statistical learning is to construct a predictor of a random variable $Y$ as a function of a related random variable $X$ on the basis of an i.i.d. training sample from the joint distribution of $(X,Y)$. Allowable predictors are drawn from some specified class, and the goal is to approach asymptotically the performance (expected loss) of the best predictor in the class. We consider the setting in which one has perfect observation of the $X$-part of the sample, while the $Y$-part has to be communicated at some finite bit rate. The encoding of the $Y$-values is allowed to depend on the $X$-values. Under suitable regularity conditions on the admissible predictors, the underlying family of probability distributions and the loss function, we give an information-theoretic characterization of achievable predictor performance in terms of conditional distortion-rate functions. The ideas are illustrated on the example of nonparametric regression in Gaussian noise.
description: 6 pages; submitted to the 2007 IEEE Information Theory Workshop (ITW 2007)
Hamiltonian formalism in Friedmann cosmology and its quantization
Creators: name: Ren, Jie
name: Meng, Xin-He
name: Zhao, Liu
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a Hamiltonian formalism for a generalized Friedmann-Roberson-Walker cosmology model in the presence of both a variable equation of state (EOS) parameter $w(a)$ and a variable cosmological constant $Λ(a)$, where $a$ is the scale factor. This Hamiltonian system containing 1 degree of freedom and without constraint, gives Friedmann equations as the equation of motion, which describes a mechanical system with a variable mass object moving in a potential field. After an appropriate transformation of the scale factor, this system can be further simplified to an object with constant mass moving in an effective potential field. In this framework, the $Λ$ cold dark matter model as the current standard model of cosmology corresponds to a harmonic oscillator. We further generalize this formalism to take into account the bulk viscosity and other cases. The Hamiltonian can be quantized straightforwardly, but this is different from the approach of the Wheeler-DeWitt equation in quantum cosmology.
description: 7 pages, no figure; v2: matches the version accepted by PRD
On the correct formula for the lifetime broadened superconducting density of states
Creators: name: Mitrovic, Bozidar
name: Rozema, Lee A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We argue that the well known Dynes formula [Dynes R C {\it et al.} 1978 {\it Phys. Rev. Lett.} {\bf 41} 1509] for the superconducting quasiparticle density of states, which tries to incorporate the lifetime broadening in an approximate way, cannot be justified microscopically for conventional superconductors. Instead, we propose a new simple formula in which the energy gap has a finite imaginary part $-Δ_2$ and the quasiparticle energy is real. We prove that in the quasiparticle approximation 2$Δ_2$ gives the quasiparticle decay rate at the gap edge for conventional superconductors. This conclusion does not depend on the nature of interactions that cause the quasiparticle decay. The new formula is tested on the case of a strong coupling superconductor Pb$_{0.9}$Bi$_{0.1}$ and an excellent agreement with theoretical predictions is obtained. While both the Dynes formula and the one proposed in this work give good fits and fit parameters for Pb$_{0.9}$Bi$_{0.1}$, only the latter formula can be justified microscopically.
description: 6 pages, 4 figures
Optimal stimulus and noise distributions for information transmission via suprathreshold stochastic resonance
Creators: name: McDonnell, Mark D.
name: Stocks, Nigel G.
name: Abbott, Derek
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Suprathreshold stochastic resonance (SSR) is a form of noise enhanced signal transmission that occurs in a parallel array of independently noisy identical threshold nonlinearities, including model neurons. Unlike most forms of stochastic resonance, the output response to suprathreshold random input signals of arbitrary magnitude is improved by the presence of even small amounts of noise. In this paper the information transmission performance of SSR in the limit of a large array size is considered. Using a relationship between Shannon's mutual information and Fisher information, a sufficient condition for optimality, i.e. channel capacity, is derived. It is shown that capacity is achieved when the signal distribution is Jeffrey's prior, as formed from the noise distribution, or when the noise distribution depends on the signal distribution via a cosine relationship. These results provide theoretical verification and justification for previous work in both computational neuroscience and electronics.
description: Accepted for publication by Physical Review E, 28 pages of text and references, 5 figures, 2 tables
Aspects of a phase transition in high-dimensional random geometry
Creators: name: Prüser, Axel
name: Kondor, Imre
name: Engel, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Portfolio Management (q-fin.PM)
subject: Risk Management (q-fin.RM)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: A phase transition in high-dimensional random geometry is analyzed as it arises in a variety of problems. A prominent example is the feasibility of a minimax problem that represents the extremal case of a class of financial risk measures, among them the current regulatory market risk measure Expected Shortfall. Others include portfolio optimization with a ban on short selling, the storage capacity of the perceptron, the solvability of a set of linear equations with random coefficients, and competition for resources in an ecological system. These examples shed light on various aspects of the underlying geometric phase transition, create links between problems belonging to seemingly distant fields and offer the possibility for further ramifications.
Three Different Types of Galaxy Alignment within Dark Matter Halos
Creators: name: Faltenbacher, A.
name: Li, Cheng
name: Mao, Shude
name: Bosch, Frank C. van den
name: Yang, Xiaohu
name: Jing, Y. P.
name: Pasquali, Anna
name: Mo, H. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a large galaxy group catalogue based on the Sloan Digital Sky Survey Data Release 4 we measure three different types of intrinsic galaxy alignment within groups: halo alignment between the orientation of the brightest group galaxies (BGG) and the distribution of its satellite galaxies, radial alignment between the orientation of a satellite galaxy and the direction towards its BGG, and direct alignment between the orientation of the BGG and that of its satellites. In agreement with previous studies we find that satellite galaxies are preferentially located along the major axis. In addition, on scales r < 0.7 Rvir we find that red satellites are preferentially aligned radially with the direction to the BGG. The orientations of blue satellites, however, are perfectly consistent with being isotropic. Finally, on scales r < 0.1 \Rvir, we find a weak but significant indication for direct alignment between satellites and BGGs. We briefly discuss the implications for weak lensing measurements.
description: 4 pages, 4 figures, ApJL accepted
The Challenge to MOND from ultra faint dwarf galaxies
Creators: name: Safarzadeh, Mohammadtaher
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Modified Newtonian Dynamics (MOND) at low acceleration has been astonishingly powerful at explaining the flat rotation curve of galaxies and the relation between the baryonic content of the galaxies and their observed circular velocity, known as the Baryonic Tully-Fisher Relationship (BTFR). It is known that MOND fails at explaining the observed velocity dispersion of the ultra-faint dwarf galaxies (UFDs) with the justification that UFDs are more prone to tidal disruption in MOND compared to cold dark matter model. We show that: (i) the ratio of tidal to internal acceleration in UFDs is extremely low, (ii) there is no correlation between the deviation of UFDs from MOND's prediction as a function of tidal susceptibility, and (iii) recent constraints from Gaia proper motion analysis on the orbital parameters of the UFDs exacerbates the challenge to MOND. In particular, Gaia data indicates that Ursa Major I is experiencing a recent infall into the Milky Way's halo, and its inconsistency with MOND at 7-$σ$ level can not be attributed to being an early infall satellite. Moreover, the new data from Gaia DR2 shows Willman I to have the least eccentric orbit of all UFDs, and its deviation from MOND at 4-$σ$ level can not be attributed to a highly eccentric orbit as previously suggested. Finally, given that Tucana III is the only UFD observed to show tidal features, Reticulum II and Segue I are two other UFDs that potentially challenge MOND as they have comparable galactocentric distances to Tucana III while showing no tidal features. Whether wide binaries have inflated the velocity dispersion of the UFDs remains an open question to be addressed with future multi-epoch observations.
description: Revised version, accepted for publication at ApJ Letters
Evolved stars hint to an external origin of enhanced metallicity in planet-hosting stars
Creators: name: Pasquini, L.
name: Doellinger, M. P.
name: Weiss, A.
name: Girardi, L.
name: Chavero, C.
name: Hatzes, A. P.
name: da Silva, L.
name: Setiawan, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Exo-planets are preferentially found around high metallicity main sequence stars. We aim at investigating whether evolved stars share this property, and what this tells about planet formation. Statistical tools and the basic concepts of stellar evolution theory are applied to published results as well as our own radial velocity and chemical analyses of evolved stars. We show that the metal distributions of planet-hosting (P-H) dwarfs and giants are different, and that the latter do not favor metal-rich systems. Rather, these stars follow the same age-metallicity relation as the giants without planets in our sample. The straightforward explanation is to attribute the difference between dwarfs and giants to the much larger masses of giants' convective envelopes. If the metal excess on the main sequence is due to pollution, the effects of dilution naturally explains why it is not observed among evolved stars. Although we cannot exclude other explanations, the lack of any preference for metal-rich systems among P-H giants could be a strong indication of the accretion of metal-rich material. We discuss further tests, as well as some predictions and consequences of this hypothesis.
description: A&A, in press
The Lorentz-violating real scalar field at thermal equilibrium
Creators: name: Aguirre, A. R.
name: Flores-Hidalgo, G.
name: Rana, R. G.
name: Souza, E. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study Lorentz-Violation(LV) effects on the thermodynamics properties of a real scalar field theory due to the presence of a constant background tensor field. In particular, we analyse and compute explicitly the deviations of the internal energy, pressure, and entropy of the system at thermal equilibrium due to the LV contributions. For the free massless scalar field we obtain exact results, whereas for the massive case we perform approximated calculations. Finally, we consider the self interacting $ϕ^4$ theory, and perform perturbative expansions in the coupling constant for obtaining relevant thermodynamics quantities.
description: 26 pages, 1 figure
Vegetation response to right-of-way clearing procedures in coastal British Columbia
Creators: name: McGee, Ann Bradshaw
Publisher: name: University of British Columbia
Year: 2010

description: This research was designed to assess the response of the flora of forested sites to the methods employed by B.C. Hydro and Power Authority for the initial clearing of transmission line rights-of-way in coastal British Columbia. Seven immature forest vegetation units adjacent to, and seven early seral vegetation units on, the transmission line rights-of-way were identified. The environmental parameter most highly correlated with both the immature forest and early seral vegetation units was slope position. The degree of disturbance (clearing standard) and seeding with agronomic grass and legume species complicated the determination of relationships between immature forest and early seral vegetation units. The majority of seeds (72%) in the forest samples was found in the forest floor layer. Twenty-one percent of the germinable seeds were found in the 0-5 cm layer of the mineral soil, and 7% were found in the 5-10 cm layer. Fewer germinable seeds were found in samples from drier than from moister vegetation units, regardless of disturbance level. Seed bank samples from high-disturbance sites had the fewest germinable seeds, primarily because the forest floor had been removed. The seed rain was dominated by tree species within the forests, and shrub and herbaceous species on the rights-of-way. The seed rain was greater, and percent germinability was higher, in the second year than in the first. Important species vegetatively invading after, or recovering from, plot scarification, included Gaultheria shallon, Pteridium aquilinum, and Rubus ursinus. Successful seedling establishment was rare: only Alnus rubra, Anaphalis marqaritacea, and Rubus spp. seedlings were observed in significant numbers, but few of these survived to the next year. In order to be successful in managing vegetation to meet transmission line right-of-way (or tree production) goals, more attention must be paid to the biology and reproductive ecology of pest and acceptable/crop species. If the field of vegetation management is to change from a corrective to a preventive focus, this attention, and information,' is crucial.
Variety of Scaling Laws for DNA Thermal Denaturation
Creators: name: Honchar, Yulian
name: von Ferber, Christian
name: Holovatch, Yurij
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discuss possible mechanisms that may impact the order of the transition between denaturated and bound DNA states and lead to changes in the scaling laws that govern conformational properties of DNA strands. To this end, we re-consider the Poland-Scheraga model and apply a polymer field theory approach to calculate entropic exponents associated with the denaturated loop distribution. We discuss in particular variants of this transition that may occur due to the properties of the solution and may affect the self- and mutual interaction of both single and double strands. We find that the effects studied significantly influence the strength of the first order transition. This is manifest in particular by the changes in the scaling laws that govern DNA loop and strand distribution. As a quantitative measure of these changes we present the values of corresponding scaling exponents. For the $d=4-\varepsilon$ case we get corresponding $\varepsilon^4$ expansions and evaluate the perturbation theory expansions at space dimension $d=3$ by means of resummation technique.
description: Paper has been accepted for publication in Physica A: Statistical Mechanics and its Applications Special Issue "Interdisciplinary applications of statistical physics" - in memory of Professor Dietrich Stauffer
BigEarthNet-MM: A Large Scale Multi-Modal Multi-Label Benchmark Archive for Remote Sensing Image Classification and Retrieval
Creators: name: Sumbul, Gencer
name: de Wall, Arne
name: Kreuziger, Tristan
name: Marcelino, Filipe
name: Costa, Hugo
name: Benevides, Pedro
name: Caetano, Mário
name: Demir, Begüm
name: Markl, Volker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper presents the multi-modal BigEarthNet (BigEarthNet-MM) benchmark archive made up of 590,326 pairs of Sentinel-1 and Sentinel-2 image patches to support the deep learning (DL) studies in multi-modal multi-label remote sensing (RS) image retrieval and classification. Each pair of patches in BigEarthNet-MM is annotated with multi-labels provided by the CORINE Land Cover (CLC) map of 2018 based on its thematically most detailed Level-3 class nomenclature. Our initial research demonstrates that some CLC classes are challenging to be accurately described by only considering (single-date) BigEarthNet-MM images. In this paper, we also introduce an alternative class-nomenclature as an evolution of the original CLC labels to address this problem. This is achieved by interpreting and arranging the CLC Level-3 nomenclature based on the properties of BigEarthNet-MM images in a new nomenclature of 19 classes. In our experiments, we show the potential of BigEarthNet-MM for multi-modal multi-label image retrieval and classification problems by considering several state-of-the-art DL models. We also demonstrate that the DL models trained from scratch on BigEarthNet-MM outperform those pre-trained on ImageNet, especially in relation to some complex classes, including agriculture and other vegetated and natural environments. We make all the data and the DL models publicly available at https://bigearth.net, offering an important resource to support studies on multi-modal image scene classification and retrieval problems in RS.
description: Accepted at the IEEE Geoscience and Remote Sensing Magazine. Our code is available online at https://git.tu-berlin.de/rsim/BigEarthNet-MM_19-classes_models. arXiv admin note: substantial text overlap with arXiv:2001.06372
Proto-Neutron Star Winds, Magnetar Birth, and Gamma-Ray Bursts
Creators: name: Metzger, B. D.
name: Thompson, T. A.
name: Quataert, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We begin by reviewing the theory of thermal, neutrino-driven proto-neutron star (PNS) winds. Including the effects of magnetic fields and rotation, we then derive the mass and energy loss from magnetically-driven PNS winds for both relativistic and non-relativistic outflows, including important multi-dimensional considerations. With these simple analytic scalings we argue that proto-magnetars born with ~ millisecond rotation periods produce relativistic winds just a few seconds after core collapse with luminosities, timescales, mass-loading, and internal shock efficiencies favorable for producing long-duration gamma-ray bursts.
description: 5 pages; to appear in the AIP conference proceedings of "Supernova 1987A: 20 Years After - Supernovae and Gamma-Ray Bursters", February 19-23, 2007, Aspen, Colorado
A very massive runaway star from Cygnus OB2
Creators: name: Comeron, F.
name: Pasquali, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: We analyze the available information on the star BD+43 3654 to investigate the possibility that it may have had its origin in the massive OB association Cygnus OB2. Methods: We present new spectroscopic observations allowing a reliable spectral classification of the star, and discuss existing MSX observations of its associated bow shock and astrometric information not previously studied. Results: Our observations reveal that BD+43 3654 is a very early and luminous star of spectral type O4If, with an estimated mass of (70 +/- 15) solar masses and an age of about 1.6 Myr. The high spatial resolution of the MSX observations allows us to determine its direction of motion in the plane of the sky by means of the symmetry axis of the well-defined bow shock, which matches well the orientation expected from the proper motion. Tracing back its path across the sky we find that BD+43 3654 was located near the central, densest region of Cygnus OB2 at a time in the past similar to its estimated age. Conclusions: BD+43 3654 turns out to be one of the three most massive runaway stars known, and it most likely formed in the central region of Cygnus OB2. A runaway formation mechanism by means of dynamical ejection is consistent with our results.
description: Accepted by Astronomy and Astrophysics (letters); 5 pages, 3 figures
Spinning Pupil Aberration Measurement for anisoplanatic deconvolution
Creators: name: Ancora, Daniele
name: Furieri, Tommaso
name: Bonora, Stefano
name: Bassi, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The aberrations in an optical microscope are commonly measured and corrected at one location in the field of view, within the so-called isoplanatic patch. Full-field correction is desirable for high-resolution imaging of large specimens. Here we present a novel wavefront detector, based on pupil sampling with sub-apertures, which measures the aberrated wavefront phase at each position of the specimen. Based on this measurement, we propose a region-wise deconvolution that provides an anisoplanatic reconstruction of the sample image. Our results indicate that the measurement and correction of the aberrations can be performed in a wide-field fluorescence microscope over its entire field of view.
description: 5 pages, 4 figures
Asymmetric Gravitational Lenses in TeVeS and Application to the Bullet Cluster
Creators: name: Feix, M.
name: Fedeli, C.
name: Bartelmann, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: We explore the lensing properties of asymmetric matter density distributions in Bekenstein's Tensor-Vector-Scalar theory (TeVeS). Methods: Using an iterative Fourier-based solver for the resulting non-linear scalar field equation, we numerically calculate the total gravitational potential and derive the corresponding TeVeS lensing maps. Results: Considering variations on rather small scales, we show that the lensing properties significantly depend on the lens's extent along the line of sight. Furthermore, all simulated TeVeS convergence maps strongly track the dominant baryonic components, non-linear effects, being capable of counteracting this trend, turn out to be very small. Setting up a toy model for the cluster merger 1E0657-558, we infer that TeVeS cannot explain observations without assuming an additional dark mass component in both cluster centers, which is in accordance with previous work.
description: LaTex, 14 pages, 10 figures, references added, 2 figures removed, minor text changes to fit accepted version (A&A)
O IMPACTO DA AVALIAÇÃO DE ATIVOS IMOBILIZADOS NO SETOR PÚBLICO: UM ESTUDO DE CASO
Creators: name: Silva, Anderson Chaves Da
name: Macedo, Marcelo Alvaro Da Silva
name: Sauerbronn, Fernanda Filgueiras
name: Szuster, Natan
Publisher: name: Revista de Informação Contábil
Year: 2013
Subjects: Convergência ao padrão contábil internacional; Setor público; Ativos imobilizados; NBCASP

description: A convergência ao padrão contábil internacional é uma realidade no setor público. Com foco no patrimônio, os agentes públicos são obrigados a avaliar seus bens. Este artigo apresenta o impacto dessa avaliação, considerando as novas regras, por meio de um estudo de caso. Os dados foram coletados no sistema de controle patrimonial de uma Organização Militar da Marinha do Brasil, com base no mês de dezembro de 2010. Os resultados evidenciaram uma redução superior a um quarto do patrimônio, e mostraram que a maneira como a avaliação e a depreciação são conduzidas define o impacto no patrimônio do órgão.
description: Revista de Informação Contábil, v. 6, n. 3 (2012): RIC - Revista de Informação Contábil
Supporting the co-design of games for privacy awareness
Creators: name: Bergen, Erlend
name: Solberg, Dag F.
name: Sæthre, Torjus H.
name: Divitini, Monica
Publisher: name: Zenodo
Year: 2018

description: Privacy is a well-known concern connected to teenagers ́ usage of e.g., social media, mobile apps, and wearables. However, providing proper learning in this area is challenging. Games have recently been proposed as a tool to in- crease awareness of privacy concerns. It is important that these games are rele- vant and engaging. In this paper, we present a workshop to involve teenagers in the co-design of games to promote privacy awareness, describing the workshop process together with the cards and the board that support the process. We eval- uated the workshop together with students between 15-17 years of age divided in groups of 3-4 participants. Results show that all the groups were able to generate interesting game ideas and the workshop was perceived as entertaining.
description: This paper was presented at ICL2018. Proceedings to be published
Optical spectrum of the post-AGB star HD56126 in the region 4010-8790 AA
Creators: name: Klochkova, V. G.
name: Chentsov, E. L.
name: Tavolganskaya, N. S.
name: Shapovalov, M. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We studied in detail the optical spectrum of the post-AGB star HD56126 (IRAS07134+1005). We use high resolution spectra (R=25000 and 60000) obtained with the echelle spectrographs of the 6-m telescope. About one and a half thousand absorptions of neutral atoms and ions, absorption bands of C_2, CN, and CH molecules, and interstellar bands (DIBs) are identified in the 4010 to 8790 AA wavelength region, and the depths and radial velocities of these spectral features are measured. Differences are revealed between the variations of the radial velocities measured from spectral features of different excitation. In addition to the well-known variability of the Halpha profile, we found variations in the profiles of a number of FeII, YII, and BaII lines. We also produce an atlas of the spectrum of HD56126 and its comparison staralpha Per. The full version of the atlas is available in electronic form from Web-address: http://www.sao.ru/hq/ssl/Atlas/Atlas.html
description: 42 pages, 6 figures
Dynamical Mean Field Study of the Two-Dimensional Disordered Hubbard Model
Creators: name: Song, Yun
name: Wortis, R.
name: Atkinson, W. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the two-dimensional paramagnetic Anderson-Hubbard model using an extension of dynamical mean-field theory that allows us to treat disorder and strong electronic correlations on equal footing. We investigate the scaling of the inverse participation ratio at quarter- and half-filling and find a nonmonotonic dependence of the localization length on the interaction strength. We do not find evidence for an insulator-metal transition. The disorder potential becomes unscreened near the Mott transition. Furthermore, strong correlations suppress the Altshuler-Aronov density of states anomaly near half-filling.
description: 5 pages, 4 figures. Revised version, In Press Phys. Rev. B
Additional file 9 of Correlation between vascular endothelial growth factor pathway and immune microenvironment in head and neck squamous cell carcinoma
Creators: name: Zhu, Chao
name: Gu, Liqun
name: Liu, Zelong
name: Li, Jiang
name: Yao, Mianfeng
name: Fang, Changyun
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 9. Functional enrichment analysis of DEGs between two VEGF subtypes in HPV-positive and -negative HNSCC. (A-C) Functional enrichment analysis revealed that immune-related GO terms ranked top in cellular components, biological process, and biological process molecular functions in HPV-negative HNSCC. (D-F) Functional enrichment analysis revealed that immune-related GO terms ranked top in cellular components, biological process, and biological process molecular functions in HPV-positive HNSCC.
Generation of Large Number-Path Entanglement Using Linear Optics and Feed-Forward
Creators: name: Cable, Hugo
name: Dowling, Jonathan P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how an idealised measurement procedure can condense photons from two modes into one, and how, by feeding forward the results of the measurement, it is possible to generate efficiently superpositions of components for which only one mode is populated, commonly called ``N00N states''. For the basic procedure, sources of number states leak onto a beam splitter, and the output ports are monitored by photodetectors. We find that detecting a fixed fraction of the input at one output port suffices to direct the remainder to the same port with high probability, however large the initial state. When instead photons are detected at both ports, Schrödinger cat states are produced. We describe a circuit for making the components of such a state orthogonal, and another for subsequent conversion to a N00N state. Our approach scales exponentially better than existing proposals. Important applications include quantum imaging and metrology.
The politics of industrial adjustment in Canada : the case of the footwear industry
Creators: name: Ramesh, M.
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study is, first, to describe the Canadian government's policy for the domestic footwear industry during the 1970-1985 period, and second, to account for the forces that shaped it. The analysis is conducted within an "organizational" framework, which is based on the approach developed by Peter Hall. The framework postulates that the relationships within and among state, societal, and international political-economic institutions are the key determinants of economic policy. The study argues that it is the conflicts within and among the state, manufacturing interests (business and labour in the footwear industry, and those in the supplying industries), and trading interests (importers and retailers dealing in footwear), conditioned by international political economy, that shaped the government's policy. It is concluded that the state and manufacturing interests formed internally united organizations and pursued well defined objectives. The state's objective was to assist the industry through high tariffs and financial aid for modernization. In contrast, the manufacturing interests' objective was to secure quotas on imports. While the two sides were internally united, neither were sufficiently strong to impose their objectives on the other. The international political economy favoured the use of tariffs and financial assistance. At the same time, circumstances arose -- resulting from economic recession, appreciation of the Canadian dollar, and the threat of Quebec separatism--that made it difficult for the state to resist the manufacturing interests' demands. In such circumstances, the industry succeeded, if only temporarily, in securing quotas in addition to tariffs and financial assistance. The trading interests were somewhat divided among themselves, which restricted their capacity to participate effectively in the policy process. Their positions were relevant only to the extent they could be selectively used by the state to resist the manufacturing interests' demands. A theme of major theoretical significance that emerges from this study is the importance of international political economy in the making of domestic policies. The second theoretical implication of the study is the need to view the state and societal actors in a policy process not just as players, but also as structures. They form an organized relationship, both within and in relation to each other, which facilitates the pursuit of some objectives and impedes the accomplishment of others.