cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarks on Dynamical Dark Energy Measured by the Conformal Age of the Universe
Creators: name: Neupane, Ishwaree P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We elaborate on a model of conformal dark energy (dynamical dark energy measured by the conformal age of the universe) recently proposed in [H. Wei and R.G. Cai, arXiv:0708.0884] where the present-day dark energy density was taken to be $ρ_q \equiv 3 α^2 m_P^2/η^2$, where $η$ is the conformal time and $α$ is a numerical constant. In the absence of an interaction between the ordinary matter and dark energy field $q$, the model may be adjusted to the present values of the dark energy density fraction $Ω\Z{q} \simeq 0.73$ and the equation of state parameter $w\Z{q} < -0.78$, if the numerical constant $α$ takes a reasonably large value, $α\gtrsim 2.6$. However, in the presence of a nontrivial gravitational coupling of $q$-field to matter, say $\widetilde{Q}$, the model may be adjusted to the values $Ω\Z{q}\simeq 0.73$ and $w\Z{q}\simeq -1$, even if $α\sim {\cal O}(1)$, given that the present value of $\widetilde{Q}$ is large. Unlike for the model in [R.G. Cai, arXiv:0707.4049], the bound $Ω\Z{q} <0.1$ during big bang nucleosynthesis (BBN) may be satisfied for almost any value of $α$. Here we discuss some other limitations of this proposal as a viable dark energy model. The model draws some parallels with the holographic dark energy; we also briefly comment on the latter model.
description: 16 pages, 10 figures, a reference added, the version to appear in Phys. Rev. D
A new species of the genus Dorcadion Dalman, 1917 (Coleoptera, Cerambycidae) from Xinjiang, China
Creators: name: Danilevsky, M.L.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Coleoptera
Cerambycidae
Lamiinae
Dorcadion
new species
status restored
Xinjiang
China
Kazakhstan
Dzhungarsky Alatau.

description: Dorcadion (Cribridorcadion) gazanchidisi sp. n. close to D. (C.) apicipenne Jakovlev, 1899, stat. rest. is described from China (Yining env., Xinjiang). The distinguishing characters are discussed. D. (C.) apicipenne Jakovlev, 1899, stat. rest. traditionally regarded as a synonym of D. (C.) sokolowi Jakovlev, 1899 is restored as a species name.
Nonlinear regularization techniques for seismic tomography
Creators: name: Loris, I.
name: Douma, H.
name: Nolet, G.
name: Daubechies, I.
name: Regone, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The effects of several nonlinear regularization techniques are discussed in the framework of 3D seismic tomography. Traditional, linear, $\ell_2$ penalties are compared to so-called sparsity promoting $\ell_1$ and $\ell_0$ penalties, and a total variation penalty. Which of these algorithms is judged optimal depends on the specific requirements of the scientific experiment. If the correct reproduction of model amplitudes is important, classical damping towards a smooth model using an $\ell_2$ norm works almost as well as minimizing the total variation but is much more efficient. If gradients (edges of anomalies) should be resolved with a minimum of distortion, we prefer $\ell_1$ damping of Daubechies-4 wavelet coefficients. It has the additional advantage of yielding a noiseless reconstruction, contrary to simple $\ell_2$ minimization (`Tikhonov regularization') which should be avoided. In some of our examples, the $\ell_0$ method produced notable artifacts. In addition we show how nonlinear $\ell_1$ methods for finding sparse models can be competitive in speed with the widely used $\ell_2$ methods, certainly under noisy conditions, so that there is no need to shun $\ell_1$ penalizations.
description: 23 pages, 7 figures. Typographical error corrected in accelerated algorithms (14) and (20)
Growing Matter
Creators: name: Amendola, Luca
name: Baldi, Marco
name: Wetterich, Christof
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate quintessence cosmologies with a matter component consisting of particles with an increasing mass. While negligible in early cosmology, the appearance of a growing matter component has stopped the evolution of the cosmon field at a redshift around six. In turn, this has triggered the accelerated expansion of the Universe. We propose to associate growing matter with neutrinos. Then the presently observed dark energy density and its equation of state are determined by the neutrino mass.
description: 6 pages
New Formula for the Eigenvectors of the Gaudin Model in the sl(3) Case
Creators: name: Burdik, C.
name: Navratil, O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81R10; 82B20; 82B23

description: We propose new formulas for eigenvectors of the Gaudin model in the $\sl(3)$ case. The central point of the construction is the explicit form of some operator P, which is used for derivation of eigenvalues given by the formula $| w_1, w_2) = \sum_{n=0}^\infty P^n/n! | w_1, w_2,0>$, where $w_1$, $w_2$ fulfil the standard well-know Bethe Ansatz equations.
Efficient electron heating in relativistic shocks and gamma ray burst afterglow
Creators: name: Gedalin, M.
name: Balikhin, M. A.
name: Eichler, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Electrons in shocks are efficiently energized due to the cross-shock potential, which develops because of differential deflection of electrons and ions by the magnetic field in the shock front. The electron energization is necessarily accompanied by scattering and thermalization. The mechanism is efficient in both magnetized and non-magnetized relativistic electron-ion shocks. It is proposed that the synchrotron emission from the heated electrons in a layer of strongly enhanced magnetic field is responsible for gamma ray burst afterglows.
description: revtex4
Boltzmann brains and the scale-factor cutoff measure of the multiverse
Creators: name: De Simone, Andrea
name: Guth, Alan H.
name: Linde, Andrei
name: Noorbala, Mahdiyar
name: Salem, Michael P.
name: Vilenkin, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: To make predictions for an eternally inflating "multiverse", one must adopt a procedure for regulating its divergent spacetime volume. Recently, a new test of such spacetime measures has emerged: normal observers - who evolve in pocket universes cooling from hot big bang conditions - must not be vastly outnumbered by "Boltzmann brains" - freak observers that pop in and out of existence as a result of rare quantum fluctuations. If the Boltzmann brains prevail, then a randomly chosen observer would be overwhelmingly likely to be surrounded by an empty world, where all but vacuum energy has redshifted away, rather than the rich structure that we observe. Using the scale-factor cutoff measure, we calculate the ratio of Boltzmann brains to normal observers. We find the ratio to be finite, and give an expression for it in terms of Boltzmann brain nucleation rates and vacuum decay rates. We discuss the conditions that these rates must obey for the ratio to be acceptable, and we discuss estimates of the rates under a variety of assumptions.
description: 32 pp, 2 figs. Modified to conform to the version accepted by Phys. Rev. D. The last paragraph of Sec. V-A, about Boltzmann brains in Minkowski space, has been significantly enlarged. Two sentences were added to the introduction concerning the classical approximation and the hope of finding a motivating principle for the measure. Several references were added
A review of Crimean Dorcadion Dalman, 1917 (Coleoptera, Cerambycidae) mainly on the base of 2021 collecting season
Creators: name: Danilevsky, M.L.
name: Danilevskaya, G.B.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Coleoptera
Cerambycidae
Lamiinae
Dorcadion
taxonomy
new subspecies
Crimea.

description: Ten Crimean Dorcadion taxons are recorded for Crimean Peninsula: D. (Carinatodorcadion) carinatum carinatum (Pallas, 1771), D. (Cribridorcadion) equestre vadimi Danilevsky, ssp. n. (Crimean endemic), D. (C.) holosericeum ustinovi Danilevsky, ssp. n. (distributed all over peninsula), D. (C.) cinerarium panticapaeum Plavilstshikov, 1951, D. (C.) cinerarium bartenevi Lazarev, 2011, D. (C.) cinerarium mosyakini Danilevsky, ssp. n. (western Crimea), D. (C.) cinerarium perroudi Pic, 1942, D. (C.) sericatum Sahlberg, 1823, D. (C.) pusillum pusillum Küster, 1847 and D. (C.) ciscaucasicum mokrzeckii Jakovlev, 1902.
Double Chargino Production in $e^{-}e^{-}$ scattering
Creators: name: Rodriguez, M. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We point out the production of the charginos and neutralinos in electron-electron process in several supersymmetric models, in order to show that the International Linear Collider can discover double charged charginos if these particles really exist in nature.
description: 9 pages, 9 figures, Talk given at CTP symposium on Supersymmetry at LHC: Theoretical and Experimental Perspectives, The British University in Egypt, Cairo, Egypt, 11-14 March 2007
The characteristic chemistry of some organometallic nitrosyl complexes
Creators: name: Martin, David Timothy
Publisher: name: University of British Columbia
Year: 2010

description: Treatment of a CH₂Cl₂ solution of (n⁵-C₅H₅ )W(NO)₂Cl with an equimolar amount of AgBF₄ results in the rapid formation of a precipitate of AgCl and a bright green solution of (n⁵-C₅H₅ )W(NO) ₂BF₄. This organometallic complex is a thermally unstable, air- and moisture-sensitve species whose characteristic chemistry is dominated by its electrophilic nature. Hence, it readily forms adducts of the type [(n⁵-C₅H₅ )W(NO) ₂L]BF₄ with Lewis bases, L, capable of good donation such as PPh₃ or P(OPh)₃. In an analogous manner, the novel complex [(n⁵-C₅H₅ )W(NO) (n²-C₈H₁₄ ) BF₄ results when (n⁵-C₅H₅ )W(NO) ₂BF₄ is exposed to an excess of cyclooctene. Other olefins, however, either do not react (e.g. Allylbenzene) or undergo dimerization (e.g. 1,1-diphenylethene) or isomerization (e.g. 2,3-dimethyl-1-butene), the latter transformations probably occurring via the formation of incipient carbocations. Phenylethyne is either polymerized or condensed with other unsaturated substrates (e.g. 2,3-dimethyl-2-butene). The organometallic electrophile also reacts with dichloromethane-soluble anionic nucleophiles, X to form (n⁵-C₅H₅ )W(NO) ₂X (X = H or Br) products. Of greater interest is the fact that (n⁵-C₅H₅ )W(NO) ₂BF₄ is sufficiently electrophilic to cleave the M-C linkages in organic derivatives of the main group elements (e.g. B, Al or Sn) and so produce some new (n⁵-C₅H₅ )W(NO) ₂R (R = C₂H₅, CH₂Ph or Ph) complexes. This chemistry has also been extended to encompass some of the pentamethylcyclopentadienyl analogues derivable from (n⁵-C₅Me₅ )W(NO) ₂BF₄. Treatment of (n⁵-C₅H₅ )M(NO) ₂CH₃ (M = Cr or Mo) with electrophiles such as HgCl₂, Ph₃C⁺, Ph₂CH⁺ and AlCl₃ results in rapid cleavage of the metal-methyl bond. Contrastingly, (n⁵-C₅H₅ )M(NO)₂ reacts much less readily with these reagents. These results point to a fundamental difference between the reactivity of these alkylnitrosyl complexes and their isoelectronic carbonyl analogues. Treatment of [(n⁵-C₅Me₅ )Mo(CO)₃CH₃ with an equimolar amount of HBF₄O(CH₃)₂ in CH₂Cl₂ results in the clean formation of [{(n⁵-C₅H₅ )Fe(CO)₂} ₂H]BF₄ which may be isolated in good yield. In contrast, 2 equivalents of the acid are required to consume completely [ (n⁵-C₅H₅ )Cr(NO)₂]₂, the principal organometallic product being (n⁵-C₅H₅ )Cr(NO)₂BF₄. This latter complex is not isolable, but it may be characterized spectroscopically and by its derivative chemistry. The propensities of the [(n⁵-C₅H₅ )M(LO)₂]₂, (M = Cr or Fe; L = N or C) dimers to undergo protonation or oxidative cleavage when treated with H+ are rationalized in terms of the initially formed [(n⁵-C₅H₅ )M(LO)₂]₂H⁺ adducts.
Interesting species of longhorn beetles (Coleoptera: Cerambycidae) from China in the collection of S. Murzin. Part 2
Creators: name: Lazarev, M.A.
name: Murzin, S.V.
name: Lin, M.-Y.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Coleoptera
Cerambycidae
zoogeography
new records
China

description: 6 Cerambycidae species are newly recorded for different provinces of China.
Strong Interactions in Multimode Random Lasers
Creators: name: Türeci, Hakan E.
name: Ge, Li
name: Rotter, Stefan
name: Stone, A. Douglas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Unlike conventional lasers, diffusive random lasers (DRLs) have no resonator to trap light and no high-Q resonances to support lasing. Due to this lack of sharp resonances the DRL has presented a challenge to conventional laser theory. We present a theory able to treat the DRL rigorously, and provide results on the lasing spectra, internal fields and output intensities of DRLs. Typically DRLs are highly multimode lasers, emitting light at a number of wavelengths. We show that the modal interactions through the gain medium in such lasers are extremely strong and lead to a uniformly spaced frequency spectrum, in agreement with recent experimental observations.
description: 13 pages, 4 figures. Supplementary information available at arXiv:0805.4497
Schoengastia pseudocordyli Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia pseudocordyli

description: Schoengastia pseudocordyli Lawrence, 1949
Schoengastia pseudocordyli Lawrence, 1949: 429, fig. 16.
Schoengastia pseudocordyli – Wharton & Fuller 1952: 89. — Vercammen-Grandjean 1958b: 659, pl. 9.
Schoengastia (Schoengastia) pseudocordyli – Zumpt 1961: 158. — Vercammen-Grandjean 1965c: 82.
Syntypes
NMSA 4831.
Distribution
South Africa (Champagne Castle, Pietermaritzburg).
Hosts
Pseudocordylus spinosus, Trachylepis striata.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on pages 85-86, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Mass-Velocity Dispersion Relation in MaNGA Brightest Cluster Galaxies
Creators: name: Tian, Yong
name: Cheng, Han
name: McGaugh, Stacy S.
name: Ko, Chung-Ming
name: Hsu, Yun-Hsin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate a kinematic scaling relation between the baryonic mass and the flat velocity dispersion, i.e. mass-velocity dispersion relation (MVDR), from the brightest cluster galaxies (BCGs) to the galaxy clusters. In our studies, the baryonic mass of BCGs is mainly estimated by photometry. The velocity dispersion profiles are explored with the integrated field unit (IFU) by Mapping Nearby Galaxies at Apache Point Observatory (MaNGA). For the first time, we reveal two significant results with 54 MaNGA BCGs: (1) the flat velocity dispersion profiles; (2) a tight empirical relation on the BCG-cluster scale together with cluster samples, i.e., MVDR, $\log(M_\mathrm{bar}/M_\odot)=4.1^{+0.1}_{-0.1}\log(σ_{\mathrm{los}}/\mathrm{km}\,\mathrm{s}^{-1})+1.6^{+0.3}_{-0.3}$, with a tiny lognormal intrinsic scatter of $10^{+2}_{-1}\%$. This slope is identical to the acceleration relation in galaxy clusters, which is reminiscent of the spiral galaxies, albeit at a larger characteristic acceleration scale. The residuals of the MVDR represent a Gaussian distribution, displaying no correlations with four properties: baryonic mass, scale length, surface density, and redshift. Notably, the MVDR on the BCG-cluster scale provides a strict test, which disfavors the general prediction of the slope of three in the dark matter model.
description: 6 pages, 3 figures, 1 table
Wheat productivity and water use efficiency responses to irrigation, cobalt and weed management
Creators: name: El-Metwally, Ibrahim Mohamed
name: Gad, Nadia
Publisher: name: Italian Journal of Agrometereology
Year: 2019

description: The effect of three irrigation levels (100%, 75% and 50% of crop water requirement), five weed control treatments (pyroxsulam, mesosulfuron-methyl, isoproturon+diflufenican, hand weeding and unweeded check control treatment), five cobalt concentrations (0, 5, 10, 15 and 20 ppm) and their interaction on wheat productivity, weed growth and water use efficiency, were examined in two field experiments in sandy soil at the Agricultural Experimental Station of the National Research Centre, Egypt. The results indicated that pyroxsulam recorded the greatest weed control efficiency. Application of 100% of crop water requirement showed the largest values of flag-leaf area, chlorophyll content, plant height, spikes number/m2, grains number/spike, 1,000 grain weight, straw and grain yield of wheat plants, compared with all other irrigation treatments. Isoproturon+diflufenican followed by pyroxsulam and mesosulfuron-methyl treatments gave the largest grain yield. Application of cobalt resulted in recovery from the negative effects of insufficient water on wheat yield in low fertility soils and using cobalt at a rate of 15 ppm resulted in increased wheat grain yield. The maximum grain yield with largest protein and carbohydrates percentages in grains was obtained by application of 100% of crop water requirement with pyroxsulam and using 15 ppm cobalt, followed by 75% of crop water requirement combined with isoproturon+diflufenican treatment, with insignificant difference between both two interaction treatments.
description: Italian Journal of Agrometereology, No 1 (2019)
New or interesting Dermestidae (Coleoptera) from the Oriental Region
Creators: name: Háva, J.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: taxonomy
new species
new records
Coleoptera
Dermestidae
Oriental Region.

description: Five new species are described, illustrated and compared with known species: Thaumaglossa soror sp. nov. from Malaysia, Thaumaglossa lineata sp. nov. from Laos, Adelaidella laotica sp. nov. from Laos, Anthrenus (Nathrenus) sabahense sp. nov. (Malaysia) and Orphinus (Orphinus) siberutensis sp. nov. (Indonesia: Siberut I.). New records are provided for the following species: Thaumaglossa barclayi Kadej & Háva, 2015 (Malaysia, Indonesia), Thaumaglossa haucki Háva, 2015 (Indonesia), Thaumaglossa paratonkinea Háva, 2008 (Indonesia), Adelaidella thailandica (Kadej & Háva, 2016) (China: Yunnan Province), Attagenus indicus Kalík, 1954 (India: Assam) and Dermestes (Dermestinus) laniarius laniarius Illiger, 1802 (Thailand).
Biases in Virial Black Hole Masses: An SDSS Perspective
Creators: name: Shen, Yue
name: Greene, Jenny E.
name: Strauss, Michael A.
name: Richards, Gordon T.
name: Schneider, Donald P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compile black hole (BH) masses for $\sim 60,000$ quasars in the redshift range $0.1 \lesssim z \lesssim 4.5$ included in the Fifth Data Release of the Sloan Digital Sky Survey (SDSS), using virial BH mass estimators based on the \hbeta, \MgII, and \CIV emission lines. We find that: (1) within our sample, the widths of the three lines follow log-normal distributions, with means and dispersions that do not depend strongly on luminosity or redshift;(2) the \MgII- and \hbeta-estimated BH masses are consistent with one another; and (3) the \CIV BH mass estimator may be more severely affected by a disk wind component than the \MgII and \hbeta estimators, giving a positive bias in mass correlated with the \CIV-\MgII blueshift. Most SDSS quasars have virial BH masses in the range $10^8-10^9 M_\odot$. There is a clear upper mass limit of $\sim 10^{10} M_\odot$ for active BHs at $z \gtrsim 2$, decreasing at lower redshifts. Making the reasonable assumptions that the underlying BH mass distribution decreases with mass and that the Eddington ratio distribution at fixed BH mass has non-zero width, we show that the measured virial BH mass distribution and Eddington ratio distribution are subject to Malmquist bias. A radio quasar subsample (with $1.5\lesssim z\lesssim 2.3$) has mean virial BH mass larger by $\sim 0.12$ dex than the whole sample. A broad absorption line (BAL) quasar subsample (with $1.7\lesssim z\lesssim 2.2$) has identical virial mass distribution as the nonBAL sample, with no mean offset. (Abridged)
description: Updated virial mass measurements; improved presentation of the MC simulation; added new discussion sections; conclusions unchanged. The full table1 is available at http://www.astro.princeton.edu/~yshen/BH_mass/datafile1.txt.tar.gz
New taxa of the genus Dorcadion Dalman, 1917 (Coleoptera, Cerambycidae) from Kirgizia
Creators: name: Danilevsky, M.L.
name: Rubenyan, A.A.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Coleoptera
Cerambycidae
Lamiinae
Dorcadion
taxonomy
new subspecies
Kirgizia.

description: Dorcadion (Cribridorcadion) semenovi aleksandrae ssp. n. is described from the eastern most area of Issyk-Kul depression. The new taxon is close to D. (C.) s. hauseri Reiter, 1895, but differs by very stable external appearance without dorsal elytral lines. D. (Acutodorcadion) darjae kungeyensis ssp. n. is described from the left side of Chong-Kemin Canyon. It differs from the nominative subspecies by rather wide body. D. (A.) d. keminum ssp. n. is described from the right side of Chong-Kemin Canyon. It differs from the nominative subspecies by wider body and less convex prothorax. D. (A.) kastekum kichikeminum ssp. n. is described from south slope of Zailiysky Alatau above Kichi-Kemin village. It differs from the nominative subspecies by less wide body. D. (A.) k. aktyuzum ssp. n. is described from the highest-level Ak-Tyuz Canyon on south slope of Zailiysky Alatau. The new subspecies differs by a number of small characters: black 1st antennal joint, poor fine pubescent of basal antennal joints and legs, completely white pale dorsal pubescence.
Interplay between Ferroelectricity and Metallicity in BaTiO$_3$
Creators: name: Michel, Veronica F.
name: Esswein, Tobias
name: Spaldin, Nicola A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the interplay between ferroelectricity and metallicity, which are generally considered to be contra-indicated properties, in the prototypical ferroelectric barium titanate, BaTiO$_3$. Using first-principles density functional theory, we calculate the effects of electron and hole doping, first by introducing a hypothetical background charge, and second through the introduction of explicit impurities (La, Nb and V for electron doping, and K, Al and Sc for hole doping). We find that, apart from a surprising increase in polarization at small hole concentrations, both charge-carrier types decrease the tendency towards ferroelectricity, with the strength of the polarization suppression, which is different for electrons and holes, determined by the detailed structure of the conduction and valence bands. Doping with impurity atoms increases the complexity and allows us to identify three factors that influence the ferroelectricity: structural effects arising largely from the size of the impurity ion, electronic effects from the introduction of charge carriers, and changes in unit-cell volume and shape. A competing balance between these contributions can result in an increase or decrease in ferroelectricity with doping.
How can policy influence innovation: An exploration of climate-smart activities in Emilia-Romagna
Creators: name: Chieco, Camilla
name: Rossi, Federica
name: Tadić, Slaven
Publisher: name: Italian Journal of Agrometereology
Year: 2019

description: Climate change is one of the main issues in agriculture. Considering its involvement in the global anthropogenic emissions (GHG) it is no wonder that research is devising ways on how to reduce such effects. A solution to such problems is climate-smart agriculture (CSA). In this paper, we analysed which are the main opportunities granted by agricultural policies when aimed at sustaining innovative agricultural models. A review of the ongoing 93 Rural Development Projects (RDPs) uncovered potential climate-smart solutions for the identified potential threats. The Ministry of Agriculture, Hunting and Fishing of the Region of Emilia-Romagna in Italy has given importance to RDPs to innovate the agricultural sector through policy measures. We analysed an Operational Group (OG) project as an overview of the work. In the case of Emilia-Romagna, the amount of innovation and solutions that can be achieved if policies invest in CSA is very clear. Emilia-Romagna is on the forefront of technological and practical advancements in the EU by implementing CSA as one of the primary solutions to the aforementioned problems and will continuously work on transitioning its agricultural practices to fight climate change.
description: Italian Journal of Agrometereology, No 1 (2019)
Dielectric microscopy with submillimeter resolution
Creators: name: Greeney, Nathan S.
name: Scales, John A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In analogy with optical near-field scanning methods, we use tapered dielectric waveguides as probes for a millimeter wave vector network analyzer. By scanning thin samples between two such probes we are able to map the spatially varying dielectric properties of materials with sub-wavelength resolution; using a 150 GHz probe in transmision mode we see spatial resolution of around 500 microns. We have applied this method to a variety of highly heterogeneous materials. Here we show dielectric maps of granite and oil shale.
Supporting Online Material for "Strong Interactions in Multimode Random Lasers"
Creators: name: Türeci, Hakan E.
name: Ge, Li
name: Rotter, Stefan
name: Stone, A. Douglas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: This preprint contains the Supporting Online Material for our paper ''Strong Interactions in Multimode Random Lasers'', Science 320, 643 (2008) (also available at: arXiv:0805.4496).
description: 11 pages, 3 figures. Supplementary information for arXiv:0805.4496
Schoengastia scincicola Lawrence 1949
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Schoengastia
Schoengastia scincicola

description: Schoengastia scincicola Lawrence, 1949
Schoengastia scincicola Lawrence, 1949: 427, fig. 14.
Schoengastia scincicola – Wharton & Fuller 1952: 89. — Vercammen-Grandjean 1958b: 659, pl. 9.
Schoengastia (Schoengastia) scincicola – Zumpt 1961: 159. — Vercammen-Grandjean 1965c: 82.
Syntypes
NMSA 4870.
Material revised
One paratype from BMNH (1957.8.12.35).
Distribution
Zimbabwe (Vumba Mountains, Chishawasha mission).
Host
Trachylepis varia.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 88, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Emil Rupp, Albert Einstein and the canal ray experiments on wave-particle duality: Scientific fraud and theoretical bias
Creators: name: van Dongen, Jeroen
Publisher: name: arXiv
Year: 2007
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: In 1926 Emil Rupp published a number of papers on the interference properties of light emitted by canal ray sources. These articles, particularly one paper that came into being in collaboration with Albert Einstein, drew quite some attention as they probed the wave versus particle nature of light. They also significantly propelled Rupp's career, even though that from the outset they were highly controversial. This article will review this episode, and in particular Rupp's collaboration with Einstein. Evidence that Rupp forged his results is presented and their critical reception in the socially and politically divided German physics community is discussed. These divisions fail to explain the full dynamic; the latter is attempted by turning to the role that theoretical bias on occasion has in assessing experiment. Einstein's responses in particular are analyzed in this context.
Fitting analysis provides further evidence for eradication of hiv/aids infection under combined liposome drug delivery treatment
Creators: name: Gabev, E. E.
name: Gabev, Evgeni B.
name: Gabev, E. E.
name: Bogoeva, M. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: It is now evident that the commonly accepted strategy for treatment of HIV/AIDS by highly active antiretroviral therapy (HAART) will not lead to eradication of HIV in a reasonable time. This is straightforward from the typical exponential viral load decay upon treatment revealing initial considerable but incomplete reduction of plasma HIV RNA with subsequent low level HIV persistence even in patients on effective antiretroviral therapy. Here we show that the viral load follows a simple zero trend linear regression line under different treatment approach recently proposed by us. This unambiguously indicates a whole body HIV eradication in reasonable time.
description: 3 pages, 1 figure. Available at: http://www.geocities.com/hivaidsbg/
Novel metabolites from British Columbia nudibranchs
Creators: name: Gustafson, Kirk
Publisher: name: University of British Columbia
Year: 2010

description: Skin extracts from a number of British Columbia nudibranchs have proven to be a rich source of novel metabolites. This thesis describes the structural investigation of several of these compounds and includes some preliminary studies of their biosynthetic origin and physiological role. The unique diacylguanidine triophamine (75) has been isolated from Triopha catalinae and Polycera tricolor. Its structure was deduced by classical chemical methods and confirmed by an unambiguous synthesis. Anisodoris nobilis provided the odoriferous degraded sesquiterpene dihydroapof arnesal (15). The structure of aldehyde jL5 was assigned by interpretation of spectral data. Extracts of Archidoris mohtereyensis contain the diterpenoic acid glyceride 17, its two monoacetates 18 and 19, the drimane sesquiterpenoic acid glyceride 20 and its monoacetate 21, the monocyclof arnesic acid glyceride 22 and the glyceryl ether 23. These compounds were established by a combination of spectral analysis, chemical interconversion and/or single crystal X-ray diffraction analysis. The structure of a free diterpenoic acid found in only one collection of A. montereyensis, was also tentatively identified. The isomeric farnesic acid glyceride 27 in addition to glycerides 17, 18, 20, 22 and ether 23 have also been isolated from Archidoris odhneri. The drimenoic acid glyceride 20 and the glyceryl ether 23 exhibit antifeedant activity against fish. Biosynthetic studies showed that ¹⁴C labeled mevalonic acid is incorporated into the terpenoid portion of glycerides 17 and 20 by A. montereyensis and into the farnesic acid portion of glyceride 24 by Archidoris odhneri. Preliminary results suggest that triophamine (75) is synthesized in situ by T. catalinae and the drimane skeleton of albicanyl acetate (36) is biosynthesized by Cadlina luteomarginata.
A New Method for measuring Weak Gravitational Lensing Shear using Higher Order Spin-2 HOLICs
Creators: name: Okura, Yuki
name: Futamase, Toshifumi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the possibility to use higher order moments of gravitational lensed images in the weak lensing analysis. For this purpose we employ spin-2 component of HOLICs(Higher Order Lensing Characteristics) developed by us. We test the weak lensing analysis with spin-2 HOLICs using actual, ground based Subaru observations of the massive galaxy cluster A1689(z=0.183). It turns out that spin-2 HOLICs of order up to 8 are sufficiently applicable for weak lensing analysis after correcting PSF anisotropy as well as isotropic PSF smearing.
description: Accepted for publication in ApJ; 10 pages, 7 figures, uses aastex.cls
Two new species of Agapanthia (Smaragdula Pesarini & Sabbadini, 2004) from Transcaucasia (Coleoptera: Cerambycidae: Laminae, Agapanthiini)
Creators: name: Hodek, K.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: taxonomy
new species
description
Coleoptera
Cerambycidae
Agapanthia
Armenia
Georgia.

description: Two new species of the subgenus Smaragdula Pesarini & Sabbadini, 2004 (Agapanthiini Audinet-Serville, 1835) are presented in this paper. Both new species come from the Transcaucasia Armenia and Georgia. Agapanthia (Smaragdula) mikhaili sp. nov. and A. (S.) chvalkovskyi sp. nov. fit habitually well into the homogeneous subgenus Smaragdula. A. (S.) mikhaili sp. nov. is compared with similar A. (S.) amitina Holzschuh, 1989 and A. (S.) persicola Reitter, 1894. A. (S.) chvalkovskyi sp. nov. is compared with A. (S.) persicola and A. (S.) chalybea Faldermann, 1837. The comparative analysis of this paper describes how to distinguish these new species well.
Physical Properties and Real Nature of Massive Clumps in the Galaxy
Creators: name: Lu, Zu-Jia
name: Pelkonen, Veli-Matti
name: Juvela, Mika
name: Padoan, Paolo
name: Haugbølle, Troels
name: Nordlund, Åke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Systematic surveys of massive clumps have been carried out to study the conditions leading to the formation of massive stars. These clumps are typically at large distances and unresolved, so their physical properties cannot be reliably derived from the observations alone. Numerical simulations are needed to interpret the observations. To this end, we generate synthetic Herschel observations using our large-scale star-formation simulation, where massive stars explode as supernovae driving the interstellar-medium turbulence. From the synthetic observations, we compile a catalog of compact sources following the exact same procedure as for the Hi-GAL compact source catalog. We show that the sources from the simulation have observational properties with statistical distributions consistent with the observations. By relating the compact sources from the synthetic observations to their three-dimensional counterparts in the simulation, we find that the synthetic observations overestimate the clump masses by about an order of magnitude on average due to line-of-sight projection, and projection effects are likely to be even worse for Hi-GAL Inner Galaxy sources. We also find that a large fraction of sources classified as protostellar are likely to be starless, and propose a new method to partially discriminate between true and false protostellar sources.
description: 17 pages, 15 figures, submitted to MNRAS
Wikispecies Notula II. Unexpected availability of a name in Cerambycidae leads to a reversal of precedence
Creators: name: Girard, J.-S.
name: Tavakilian, G.
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Nomenclature
nomen protectum
Parastasia
Dorcasta
Scarabaeidae
Cerambycidae.

description: The generic name Dorcasta (Cerambycidae: Apomecynini) is found to be predated by the earlier Gnaphalocera Chevrolat syn. nov., and D. dasycera by G. linta syn. nov. References are provided that afford Dorcasta and D. dascycera the status of nomen protectum. Updated synonymies for Dorcasta and D. linta are provided.
Observation of an enhancement in e+e- to Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, and Upsilon(3S)pi+pi- production near sqrt{s}=10.89 GeV at Belle
Creators: name: The Belle Collaboration
name: Chen, K. -F.
name: Hou, W. -S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We measure the production cross sections for e+e- -> Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, and Upsilon(3S)pi+pi- as a function of sqrt{s} between 10.83 GeV and 11.02 GeV. The data consists of 8.1 fb^-1 collected with the Belle detector at the KEKB e+e- collider. We observe enhanced production in all three final states that does not agree well with the conventional Upsilon(10860) lineshape. A fit using a Breit-Wigner resonance shape yields a peak mass of [10888.4 +2.7/-2.6 (stat) +- 1.2 (syst)] MeV/c^2 and a width of [30.7 +8.3/-7.0 (stat) +- 3.1 (syst)] MeV/c^2.
description: 6 pages, 3 figures, Contributed to the 34th International Conference on High Energy Physics, Philadelphia, USA, July 2008; Submit to PRD(RC)
A 12um ISOCAM Survey of the ESO-Sculptor Field: Data Reduction and Analysis
Creators: name: Seymour, Nick
name: Rocca-Volmerange, Brigitte
name: de Lapparent, Valerie
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed reduction of a mid-infrared 12um (LW10 filter) ISOCAM open time observation performed on the ESO-Sculptor Survey field (Arnouts et al. 1997). A complete catalogue of 142 sources (120 galaxies and 22 stars), detected with high significance (equivalent to 5sigma), is presented above an integrated flux density of 0.24mJy. Star/galaxy separation is performed by a detailed study of colour-colour diagrams. The catalogue is complete to 1mJy and below this flux density the incompleteness is corrected using two independent methods. The first method uses stars and the second uses optical counterparts of the ISOCAM galaxies; these methods yield consistent results. We also apply an empirical flux density calibration using stars in the field. For each star, the 12um flux density is derived by fitting optical colours from a multi-band chi^2 to stellar templates (BaSel-2.0) and using empirical optical-IR colour-colour relations. This article is a companion analysis to Rocca-Volmerange 2007 et al. where the 12um faint galaxy counts are presented and analysed by galaxy type with the evolutionary code PEGASE.3.
description: 12 pages, 7 figures, figure 1 modified from journal version for size, accepted for publication in A&A, includes psfig.sty
Strong decays and dipion transitions of Upsilon(5S)
Creators: name: Simonov, Yu. A.
name: Veselov, A. I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dipion transitions of $Υ(nS)$ with $n=5, n'=1,2,3$ are studied using the Field Correlator Method, applied previously to dipion transitions with $n=2,3,4$ The only two parameters of effective Lagrangian were fixed in that earlier study, and total widths $Γ_{ππ} (5, n')$ as well as pionless decay widths $Γ_{BB} (5S), Γ_{BB^*} (5S), Γ_{B^*B^*}(5S)$ and $Γ_{KK} (5, n')$ were calculated and are in a reasonable agreement with experiment. The experimental $ππ$ spectra for $(5,1)$ and (5,2) transitions are well reproduced taking into account FSI in the $ππ$.
description: 16 pages, 6 figures
Is our Sun a Singleton?
Creators: name: Malmberg, D.
name: Davies, M. B.
name: Chambers, J. E.
name: De Angeli, F.
name: Church, R. P.
name: Mackey, D.
name: Wilkinson, M. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Most stars are formed in a cluster or association, where the number density of stars can be high. This means that a large fraction of initially-single stars will undergo close encounters with other stars and/or exchange into binaries. We describe how such close encounters and exchange encounters can affect the properties of a planetary system around a single star. We define a singleton as a single star which has never suffered close encounters with other stars or spent time within a binary system. It may be that planetary systems similar to our own solar system can only survive around singletons. Close encounters or the presence of a stellar companion will perturb the planetary system, often leaving planets on tighter and more eccentric orbits. Thus planetary systems which initially resembled our own solar system may later more closely resemble some of the observed exoplanet systems.
description: 2 pages, 1 figure. To be published in the proceedings of IAUS246 "Dynamical Evolution of Dense Stellar Systems". Editors: E. Vesperini (Chief Editor), M. Giersz, A. Sills
Charming synergies: the role of charm-threshold studies in the search for physics beyond the Standard Model
Creators: name: Wilkinson, Guy
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Measurements performed with pairs of charm mesons produced at threshold from the decay of the $ψ(3770)$ resonance are of great value in flavour physics. The quantum correlation that exists between the two mesons allows unique access to strong-phase information, which is essential input to flavour-physics studies conducted in other environments. An excellent example from the BESIII collaboration is a recent determination of the strong-phase difference between $D^0$ and $\bar{D}^0$ mesons in the decay $D^0 \to K^0_Sπ^+π^-$, which has enabled recent measurements to be performed of the $C\!P$-violating phase $γ$ and $D^0-\bar{D}^0$ oscillations by the LHCb experiment at CERN. These $ψ(3770)$ data, and also those collected just above the thresholds for $D_s^+$ and $Λ_c^+$ production, can also be exploited in many other ways that are of benefit to flavour-physics studies. These synergies are reviewed, and the need for larger threshold data samples in the near future is emphasised.
description: `News and Views' article to be published in Science Bulletin. Minor typos fixed in this version
Bundles of coloured posets and a Leray-Serre spectral sequence for Khovanov homology
Creators: name: Everitt, Brent
name: Turner, Paul
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: The decorated hypercube found in the construction of Khovanov homology for links is an example of a Boolean lattice equipped with a presheaf of modules. One can place this in a wider setting as an example of a coloured poset, that is to say a poset with a unique maximal element equipped with a presheaf of modules. In this paper we initiate the study of a bundle theory for coloured posets, producing for a certain class of base posets a Leray-Serre type spectral sequence. We then show how this theory finds application in Khovanov homology by producing a new spectral sequence converging to the Khovanov homology of a given link.
description: 22 pages; minor changes since version 1, including the addition of the words, "for Khovanov homology" to the end of the title
Scale-dependent anisotropy, energy transfer and intermittency in bubble-laden turbulent flows
Creators: name: Ma, Tian
name: Ott, Bernhard
name: Frohlich, Jochen
name: Bragg, Andrew D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Data from Direct Numerical Simulations of disperse bubbly flows in a vertical channel are used to study the effect of the bubbles on the carrier-phase turbulence. A new method is developed, based on the barycentric map approach, that allows to quantify the anisotropy and componentiality of the flow at any scale. Using this the bubbles are found to significantly enhance flow anisotropy at all scales compared with the unladen case, and for some bubble cases, very strong anisotropy persists down to the smallest flow scales. The strongest anisotropy observed was for the cases involving small bubbles. Concerning the inter-scale energy transfer, our results indicate that for the bubble-laden cases, the energy transfer is from large to small scales, just as for the unladen case. However, there is evidence of an upscale transfer when considering the transfer of energy associated with particular components of the velocity field. Although the direction of the energy transfer is the same with and without the bubbles, the transfer is much stronger for the bubble-laden cases, suggesting that the bubbles play a strong role in enhancing the activity of the nonlinear term in the flow. The normalized forms of the fourth and sixth-order structure functions are also considered, and reveal that the introduction of bubbles into the flow strongly enhances intermittency in the dissipation range, but suppresses it at larger scales. This strong enhancement of the dissipation scale intermittency has significant implications for understanding how the bubbles might modify the mixing properties of turbulent flows.