cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Model Averaging for Prediction With Fragmentary Data
Creators: name: Fang, Fang
name: Lan, Wei
name: Tong, Jingjing
name: Shao, Jun
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: One main challenge for statistical prediction with data from multiple sources is that not all the associated covariate data are available for many sampled subjects. Consequently, we need new statistical methodology to handle this type of “fragmentary data” that has become more and more popular in recent years. In this article, we propose a novel method based on the frequentist model averaging that fits some candidate models using all available covariate data. The weights in model averaging are selected by delete-one cross-validation based on the data from complete cases. The optimality of the selected weights is rigorously proved under some conditions. The finite sample performance of the proposed method is confirmed by simulation studies. An example for personal income prediction based on real data from a leading e-community of wealth management in China is also presented for illustration.
How Would Farm Managers Respond to a Limit on Crop Insurance Premium Subsidies?
Creators: name: Davis, Todd D.
name: Anderson, John A.
name: Young, Robert E.
name: Davis, Todd D.
name: Anderson, John A.
name: Young, Robert E.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Risk and Uncertainty
subject: farm management
subject: risk management
subject: farm policy

description: A stochastic simulation model is used to determine crop insurance premiums and farm program payments for a Illinois corn-soybean and Mississippi corn-soybean-rice-cotton farm. The optimal portfolio of crop insurance and farm programs are determined subject to payment limitations and crop insurance subsidy constraints.
MOESM1 of Barriers from calling ambulance after recognizing stroke differed in adults younger or older than 75 years old in China
Creators: name: Shengde Li
name: Cui, Li-Ying
name: Anderson, Craig
name: Chunpeng Gao
name: Chengdong Yu
name: Guangliang Shan
name: Longde Wang
name: Peng, Bin
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Appendix 1. List of the FAST-RIGHT Investigators and Coordinators. Appendix 2. The structure of FAST-RIGHT questionnaire with additional 4 questions about stroke awareness. Appendix 3. Definition of Risk Factors for Stroke. Table S1. Missing data for each variable in adults recognizing stroke. Table S2. Comparison of variables between 40 and 74 and 75–99 age groups. Table S3. Comparison of avenues between 40 and 74 and 75–99 age groups. Table S4. Responses to stroke among residents recognizing stroke by age groups. Table S5. Logistic regression models of factors associated with self-observation at home and waiting for family among residents recognizing stroke, respectively. Table S6. Living status in different age groups. Table S7. Distribution of education and number of avenues to learn about stroke in 40–74 age group categorized by sex. Figure S1. Data preparation and cleaning process. Figure S2. Prevalence of stroke and cardiovascular risk factors among 40–74 and 75–99 age groups.
MOESM1 of Neurodevelopmental effect of intracranial hemorrhage observed in hypoxic ischemic brain injury in hypothermia-treated asphyxiated neonates - an MRI study
Creators: name: Lakatos, Andrea
name: Kolossváry, Márton
name: Szabó, Miklós
name: Jermendy, Ágnes
name: Barta, Hajnalka
name: Gyebnár, Gyula
name: Rudas, Gábor
name: Kozák, Lajos
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Additional file 1: Inclusion and exclusion criteria of therapeutic hypothermia in the TOBY trial.
Baryon Spectroscopy at Beijing Electron Positron Collider
Creators: name: Zou, B. S.
name: Ji, X. B.
name: Yang, H. X.
name: Collaboration, representing BES
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: BES Collaboration has collected 58 million $J/ψ$ events at the Beijing Electron-Positron Collider (BEPC). $J/ψ$ decays provide an excellent place for studying excited nucleons and hyperons -- $N^*$, $Λ^*$, $Σ^*$ and $Ξ^*$ resonances. Physics motivation, data status, partial wave analyses and future prospects are presented for the baryon resonance program at BES.
description: Postscript file, 6 pages. Invited Plenary talk at 9th International Symposium on Meson - Nucleon Physics and the Structure of the Nucleon (MENU 2001), Washington, DC, 26-31 Jul 2001, to appear in the Proceedings
Structure of odd-odd Cs isotopes within the interacting boson-fermion-fermion model based on the Gogny-D1M energy density functional
Creators: name: Nomura, K.
name: Rodríguez-Guzmán, R.
name: Robledo, L. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The spectroscopic properties of the odd-odd isotopes $^{124-132}$Cs have been studied within the interacting boson-fermion-fermion model based on the Gogny-D1M energy density functional framework. Major ingredients to build the interacting boson-fermion-fermion Hamiltonian, such as the ($β,γ$)-deformation energy surfaces for the even-even core nuclei $^{124-132}$Xe as well as single-particle energies and occupation probabilities of the odd nucleons, have been computed microscopically with the constrained Hartree-Fock-Bogoliubov method. A few coupling constants of the boson-fermion and residual neutron-proton interactions are fitted to reproduce with a reasonable accuracy the experimental excitation energy of the low-lying levels of the odd-mass and odd-odd nuclei. The method is applied to describe the low-energy low-spin spectra of the odd-odd Cs nuclei and the band structures of higher-spin higher-energy states, mainly based on the $(νh_{11/2})^{-1}\otimesπh_{11/2}$ configuration. Many of those odd-odd Cs nuclei have been identified as candidates for exhibiting chiral doublet bands.
description: 18 pages, 18 figures, 4 tables; to appear in Phys. Rev. C
A new triterpenoid and other compounds from lichens Cryptothecia faveomaculata Makhija & Patw
Creators: name: Nguyen Ngoc Tuan
name: Ping-Chung Kuo
name: Hieu, Tran Trung
name: Vi, Le Nguyen Tuong
name: Quach Tong Hung
name: Dunge, Le Tien
name: Nguyen Duy Trinh
name: Nguyen Quang Trung
name: Nguyen Cuu Khoa
name: Hai, Ha Viet
name: Thang, Tran Dinh
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Ten compounds (1–10) were purified from the extract of lichens C. faveomaculata, and among these one new triterpenoid, cryptothecin A (1) was characterized through mass spectrometric and 2D NMR spectroscopic analyses. Some of the isolated compounds were assessed for their antimicrobial (1, 6, and 8) and cytotoxic activity (1, 4–5, and 7–9), but only weak inhibitory effects were observed.
Constraints on Cosmic Quintessence and Quintessential Inflation
Creators: name: Yahiro, M.
name: Mathews, G. J.
name: Ichiki, K.
name: Kajino, T.
name: Orito, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, attempts have been made to understand the apparent near coincidence of the present dark energy and matter energy in terms of a dynamical attractor-like solution for the evolution of a scalar field. In these models the field couples with the dominant constituent and only acts like a cosmological constant after the onset of the matter-diminated epoch. A generic feature of such solutions, however, is the possibility of significant energy density in the scalar field during the radiation-dominated epoch. This possibility is even greater if the quintessence field begins in a kinetic-dominated regime generated at the end of quintessential inflation. As such, these models can affect and be constrained by primordial nucleosynthesis and the epoch of of photon decoupling. Here, we analyze one popular form of the quintessence field (with and without a supergravity correction) and quantify constraints on the allowed initial conditions and parameters for the effective potential. We also deduce constraints on the epoch of matter creation at the end of quintessential inflation.
description: 11 pages, 3 figures, PRD vol 65 (002) in press
A realist view of the canonical EPRB experiment based on quantum theory and its consequences
Creators: name: Lan, Boon Leong
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A realist view of the Einstein-Podolsky-Rosen-Bohm experiment with spins based on quantum theory is presented. This view implies that there is no action at a distance. It also implies that the measurement result A (B) for particle 1 (2) depends on both magnet angles, and hence the probability of obtaining the result A (B) also depends on both magnet angles. In light of these realist implications, it is clear that what is wrong at least with local realistic theory is not the locality or no action-at-a-distance assumption itself but rather the formal implementation of that assumption.
description: To be published in the Journal of Optics B as part of the proceeedings of the Garda 2001 Workshop on Mysteries, Puzzles and Paradoxes in Quantum Mechanics
Vilargus campanus
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Vilargus
Vilargus campanus

description: Vilargus campanus (Naudé). Comb. nov.
 Deltocephalus campanus Naudé 1926: 44, South Africa
 Remarks. The identity of this species was not confirmed by Theron (1975: 189), who noted that the species was only known from the female type. However, Michael Stiller (pers. comm.) writes: “This species is definitely Vilargus, and probably V. pumilicans (Naudé). In Naudé (1926) the latter was described from 5 males and campanus from one female, from widely separated localities. I have examined many specimens and need to include another five species in this genus, with all females depicting the characteristic posterior emargination of sternite 7”.
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 30
The Redshift Evolution of Rest-UV Spectroscopic Properties to z~5
Creators: name: Pahl, Anthony J.
name: Shapley, Alice
name: Faisst, Andreas L.
name: Capak, Peter L.
name: Du, Xinnan
name: Reddy, Naveen A.
name: Laursen, Peter
name: Topping, Michael W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a comprehensive analysis of the redshift evolution of the rest-UV spectra of star-forming galaxies out to z~5. We combine new z~5 measurements of HI Ly$α$ and low- and high-ionization interstellar metal absorption features with comparable measurements at z~2-4. We measure the equivalent widths of interstellar absorption features using stacked spectra in bins of Ly$α$ equivalent width, performing corrections to Ly$α$ strengths based on a model for the transmission of the intergalactic medium. We find a strong correlation between decreasing low-ionization absorption strength and increasing Ly$α$ emission strength over the redshift range z~2-5, suggesting that both of these quantities are fundamentally linked to neutral gas covering fraction. At the highest Ly$α$ equivalent widths, we observe evolution at $z\sim5$ towards greater Ly$α$ emission strength at fixed low-ionization absorption strength. If we interpret the non-evolving relationship of Ly$α$ emission strength and low-ionization line strength at z~2-4 as primarily reflecting the radiative transfer of Ly$α$ photons, this evolution at z~5 suggests a higher intrinsic production rate of Ly$α$ photons than at lower redshift. Our conclusion is supported by the joint evolution of the relationships among Ly$α$ emission strength, interstellar absorption strength, and dust reddening. We perform additional analysis in bins of stellar mass, star-formation rate, UV luminosity, and age, examining how the relationships between galaxy properties and Ly$α$ emission evolve towards higher redshift. We conclude that increasing intrinsic Ly$α$ photon production and strong detection of nebular CIV emission (signaling lower metallicity) at z~5 indicate an elevated ionized photon production efficiency ($ξ_{\rm ion}$).
description: 20 pages, 17 figures, accepted for publication in MNRAS
Validating Scattering-Induced (Sub)millimeter Disk Polarization through the Spectral Index, Wavelength-Dependent Polarization Pattern, and Polarization Spectrum: The Case of HD 163296
Creators: name: Lin, Zhe-Yu Daniel
name: Li, Zhi-Yun
name: Yang, Haifeng
name: Looney, Leslie
name: Stephens, Ian
name: Hull, Charles L. H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An increasing number of young circumstellar disks show strikingly ordered (sub)millimeter polarization orientations along the minor axis, which is strong evidence for polarization due to scattering by ~0.1 mm sized grains. To test this mechanism further, we model the dust continuum and polarization data of HD 163296, one of the best observed disks with prominent rings and gaps, using the RADMC-3D radiative transfer code. We find that scattering by grains with a maximum size of 90$μ$m can simultaneously reproduce the polarization observed at 0.87 mm (ALMA Band 7) and the unusually low spectral index of $α$ ~ 1.5 between 0.87 and 1.25 mm (ALMA Band 6) in the optically thick inner disk as a result of more efficient scattering at a shorter wavelength. The relatively low spectral index of $α$ ~ 2.5 inferred for the optically thin gaps is also reproduced by the same (relatively small) grains, as a result of telescope beam averaging of the gaps (with an intrinsic $α$ ~ 4) and their adjacent optically thick rings (where $α$ << 2). In this case, the long-standing tension between the grain sizes inferred from polarization and spectral index disappears because the relatively low $α$ values are illusory and do not require large mm-sized grains. In addition, the polarization fraction has a unique pattern of azimuthal variation: higher along the major axis than the minor axis in the gaps but higher along the minor axis than the major axis in the rings. We find a rapidly declining polarization spectrum (with the fraction $p \propto λ^{-3}$ approximately) in the gaps, which becomes flattened or even inverted towards short wavelengths in the optically thick rings. These contrasting behaviors in the rings and gaps provide further tests of scattering-induced polarization that can be tested via multi-wavelength observations that resolve the disk substructure.
description: 14 pages, 8 figures, updated to include referee feedback, accepted and to be published in MNRAS
Schwarzschild spacetime immersed in test nonlinear electromagnetic fields
Creators: name: Bokulić, Ana
name: Smolić, Ivica
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Kerr black hole immersed in test, asymptotically homogeneous magnetic field, aligned along the symmetry axis, is described by Wald's solution. We show how the static case of this solution may be generalized for nonlinear electromagnetic models via perturbative approach. Using this technique we find the lowest order correction to Wald's solution on Schwarzschild spacetime in Euler--Heisenberg and Born--Infeld theories. Finally, we discuss the problem of highly conducting star in asymptotically homogeneous magnetic field.
description: 18 pages, 2 figures; slightly revised, published version
Growth of Brazilian Beef Production: effect of shocks of supply and demand
Creators: name: Silva Neto, Waldemiro Alcântara Da
name: Bacchi, Mirian Rumenos Piedade
name: Silva Neto, Waldemiro Alcântara Da
name: Bacchi, Mirian Rumenos Piedade
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Beef cattle
subject: exports
subject: animal stock
subject: trading.

description: With the considerable growth of beef production in Brazil and the growth in beef exports as a backdrop, the main objective of this study is to identify the factors responsible for the excellent performance of this agribusiness sector. Conducting this study required the construction of a theoretical model that was capable of supporting the specification of the adjusted econometric model using vector autoregression with identification by the Bernanke process. The findings show that the main determinant of beef cattle growth and Brazilian beef exports is increased animal stock. Furthermore, productivity has a positive, albeit more modest, effect on beef production and exports. The results show that the increase of the number of cattle reduces costs to the farmer and retail beef prices.
MOESM9 of Repeated mosquito net distributions, improved treatment, and trends in malaria cases in sentinel health facilities in Papua New Guinea
Creators: name: Rodriguez-Rodriguez, Daniela
name: Seri Maraga
name: Lorry, Lina
name: Robinson, Leanne
name: Siba, Peter
name: Mueller, Ivo
name: Pulford, Justin
name: Ross, Amanda
name: Hetzel, Manuel
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 9. Percentage of malaria cases treated with primaquine (for different RDT results), and with artemisinin-based combination therapy.
Expectations on the mass determination using astrometric microlensing by Gaia
Creators: name: Klüter, J.
name: Bastian, U.
name: Wambsganss, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Astrometric gravitational microlensing can be used to determine the mass of a single star (the lens) with an accuracy of a few percent. To do so, precise measurements of the angular separations between lens and background star with an accuracy below 1 milli-arcsecond at different epochs are needed. Hence only the most accurate instruments can be used. However, since the timescale is in the order of months to years, the astrometric deflection might be detected by Gaia, even though each star is only observed on a low cadence. Aims. We want to show how accurately Gaia can determine the mass of the lensing star. Methods. Using conservative assumptions based on the results of the second Gaia Data release, we simulated the individual Gaia measurements for 501 predicted astrometric microlensing events during the Gaia era (2014.5 - 2026.5). For this purpose we use the astrometric parameters of Gaia DR2, as well as an approximative mass based on the absolute G magnitude. By fitting the motion of lens and source simultaneously we then reconstruct the 11 parameters of the lensing event. For lenses passing by multiple background sources, we also fit the motion of all background sources and the lens simultaneously. Using a Monte-Carlo simulation we determine the achievable precision of the mass determination. Results. We find that Gaia can detect the astrometric deflection for 114 events. Further, for 13 events Gaia can determine the mass of the lens with a precision better than 15% and for 13 + 21 = 34 events with a precision of 30% or better.
description: 13 pages; 10 figures; 3 tables; accepted by A&A (April. 28th 2020) The Python-based code for our simulation is made publicly available https://github.com/jkluter/MLG
Lorentz violation and Crab synchrotron emission: a new constraint far beyond the Planck scale
Creators: name: Jacobson, T.
name: Liberati, S.
name: Mattingly, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Special relativity asserts that physical phenomena appear the same for all inertially moving observers. This symmetry, called Lorentz symmetry, relates long wavelengths to short ones: if the symmetry is exact it implies that spacetime must look the same at all length scales. Several approaches to quantum gravity, however, suggest that there may be a Lorentz violating microscopic structure of spacetime, for example discreteness, non-commutativity, or extra dimensions. Here we determine a very strong constraint on a type of Lorentz violation that produces a maximum electron speed less than the speed of light. We use the observation of 100 MeV synchrotron radiation from the Crab nebula to improve the previous limits by a factor of 40 million, ruling out this type of Lorentz violation, and thereby providing an important constraint on theories of quantum gravity.
description: 12 pages. Presentation shortened and revised for letter to Nature. New title "A strong astrophysical constraint on the violation of special relativity by quantum gravity". Maximum observed synchrotron frequency lowered, resulting in weakening the constraint from E_QG>4.5*10^27 GeV to E_QG>10^26 GeV. The role of the effective field theory assumptions underlying the analysis is highlighted
Stirellus laetus
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Stirellus
Stirellus laetus

description: Stirellus laetus (Melichar). Comb. nov.
 Deltocephalus laetus Melichar, 1903: 202, Sri Lanka.
 Material examined. Syntypes: see Webb et al (1990).
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 30
Quark number susceptibilities from lattice QCD
Creators: name: Gavai, Rajiv V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Results from our recent investigations of quark number susceptibilities in both quenched and 2-flavour QCD are presented as a function of valence quark mass and temperature. A strong reduction (~40%) is seen in the strange quark susceptibility above Tc in both cases. A comparison of our isospin susceptibility results with the corresponding weak coupling expansion reveals once again the non-perturbative nature of the plasma up to 3 Tc. Evidence relating the susceptibility to another non-perturbative phenomena, pionic screening lengths, is presented.
description: 5 pages, LaTeX, 3 figures(included), Talk given at the International Conference on Statistical QCD, Bielefeld, Germany, August 26--30, 2001
Stirellus rufolineatus
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Stirellus
Stirellus rufolineatus

description: Stirellus rufolineatus (Melichar). Comb. nov.
 Deltocephalus rufolineatus Melichar, 1903: 203, Sri Lanka.
 Material examined. Holotype ♀, ‘ Ceylon Nictn’ (HUMN).
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 30
MOESM8 of Repeated mosquito net distributions, improved treatment, and trends in malaria cases in sentinel health facilities in Papua New Guinea
Creators: name: Rodriguez-Rodriguez, Daniela
name: Seri Maraga
name: Lorry, Lina
name: Robinson, Leanne
name: Siba, Peter
name: Mueller, Ivo
name: Pulford, Justin
name: Ross, Amanda
name: Hetzel, Manuel
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 8. Percentage of malaria cases treated with the previous first line treatment or partial treatment (mono-therapy), and with artemisinin-based combination therapy.
Realization of complex conjugate media using non-PT-symmetric photonic crystals
Creators: name: Cui, Xiaohan
name: Ding, Kun
name: Dong, Jianwen
name: Chan, C. T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: While parity-time (PT)-symmetric systems can exhibit real spectra in the exact PT-symmetry regime, the PT-symmetry is actually not a necessary condition for the real spectra. Here we show that non-PT-symmetric photonic crystals carrying Dirac-like cone dispersions can always exhibit real spectra as long as the average non-Hermiticity strength within the unit cell for the eigenstates is zero. By building a non-Hermitian Hamiltonian model, we find that the real spectra of the non-PT-symmetric system can be explained using the concept of pseudo-Hermiticity. We demonstrate using effective medium theories that in the long-wavelength limit, such non-PT-symmetric photonic crystals behave like the so-called complex conjugate medium (CCM) whose refractive index is real but whose permittivity and permeability are complex numbers. The real refractive index for this effective CCM is guaranteed by the real spectrum of the photonic crystals and the complex permittivity and permeability comes from the non-PT-symmetric loss-gain distributions. We show some interesting phenomena associated with the CCM, such as the lasing effect.
1D exciton band and exciton-phonon interaction in a single polymer chain
Creators: name: Dubin, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The excitonic luminescence of an isolated polydiacetylene polymer chain in its monomer matrix is studied by micro-photoluminescence. These chains behave as perfect 1D excitonic systems with the expected 1/sqrt{E} density of states between 5 and 50 K. The temperature dependence of the homogeneous width is quantitatively explained by interaction with longitudinal acoustic phonons of the crystal in the range of temperature explored.
description: 7 pages, 3 figures (TeX format)
Dark photon manifestation in the triplet-like QED processes $γ+ \ell_i \to \ell^+_j \ell^-_j + \ell_i$, $i\neq j,$ $i=e, μ,$ $j=e, μ,τ$
Creators: name: Gakh, G. I.
name: Konchatnij, M. I.
name: Merenkov, N. P.
name: Tomasi-Gustafsson, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The triplet-like QED processes $γ+ \ell_i \to \ell^+_j \ell^-_j + \ell_i$ with $i\neq j,$ and $i=e, μ,$ $j=e, μ,τ$ has been investigated as the reactions where a dark photon, $A'$, is produced as a virtual state with subsequent decay into a $\ell^+_j \ell^-_j-$-pair. This effect arises due to the so-called kinetic mixing and is characterized by the small parameter $ε$ describing the coupling strength relative to the electric charge $e$. The main advantage of searching $A'$ in these processes is that the background to the $A'$ signal is pure QED. Concerning $A'$, we consider its contribution in the Compton-type diagrams only since, in this case, the virtual dark photon has time-like nature and its propagator has the Breit-Wigner form. So, near the resonance, $A'$ can manifest itself. The contribution of $A'$ in the Borsellino diagrams is negligible since, in this case, the virtual dark photon is space-like, the $A'$ propagator does not peak and the effect is proportional, at least, to $ε^2$. We calculate the distributions over the invariant mass of the produced $\ell^+_j \ell^-_j-$ pair and search for the kinematical region where the Compton-type diagrams contribution is not suppressed with respect to the Borsellino ones. The value of the parameter $ε$ is estimated as a function of the dark photon mass for a given number of events.
description: 27 pages, 13 figures, accepted for publication in Phys Rev D
Phenolic glycosides from Nitraria sibirica leaves and their in vitro biological activities
Creators: name: Chimengul Turghun
name: Mahinur Bakri
name: Ge-Yu Liu
name: Khayrulla Bobakulov
name: Haji Akber Aisa
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Seventeen phenolic glycosides were isolated from the Nitraria sibirica. Their structures were identified by the spectroscopic data and comparison with literatures as isovanillyl alcohol-7-O-β-d-glucopyranoside (1), benzyl β-primeveroside (2), benzyl-O-β-d-glucopyranoside (3), 1-O-β-d-glucopyranosyl-4-(8-hydroxyethyl)-2-methoxyphenyl (4), dehydrosyringin (5), trans-ferulic acid-4-O-β-d-glucoside (6), cis-ferulic acid 4-O-β-d-glucopyranoside (7), glucosyringic acid (8), 1-O-feruloyl-β-d-glucoside (9), sachaloside VII (10), (3S, 5R, 6R, 7E, 9S)-megastigmane-7-ene-3-hydroxy-5,6-epoxy-9-O-β-d-glucopyranoside(11), 3-hydroxy-4,5-dimethoxybenzyl alcohol (12), pinoresinol 4-O-β-d-glucopyranoside (13), eucommin A (14), isoeucommin A (15), acanthoside (16), liriodendrin (17). All these compounds except compound 13 were isolated from the Nitraria genus for the first time. In bioactivity assays for all compounds, the compounds 8 and 15 were exhibited strong antioxidant activity (IC50 = 18.11 and 16.29 μM respectively), while compounds 3 and 11 were exhibited strong PTP1B enzymatic inhibition (IC50 = 6.97 and 11.76 μM, respectively). Furthermore, the compounds 10 and 17 were presented strong inhibitory capacities against Candida albicans (14.5 and 13.5 mm, respectively).
MOESM7 of Repeated mosquito net distributions, improved treatment, and trends in malaria cases in sentinel health facilities in Papua New Guinea
Creators: name: Rodriguez-Rodriguez, Daniela
name: Seri Maraga
name: Lorry, Lina
name: Robinson, Leanne
name: Siba, Peter
name: Mueller, Ivo
name: Pulford, Justin
name: Ross, Amanda
name: Hetzel, Manuel
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Computational Biology

description: Additional file 7. Self-reported net use.
Comyco: Quality-Aware Adaptive Video Streaming via Imitation Learning
Creators: name: Huang, Tianchi
name: Zhou, Chao
name: Zhang, Rui-Xiao
name: Wu, Chenglei
name: Yao, Xin
name: Sun, Lifeng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Multimedia (cs.MM)
subject: Artificial Intelligence (cs.AI)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Learning-based Adaptive Bit Rate~(ABR) method, aiming to learn outstanding strategies without any presumptions, has become one of the research hotspots for adaptive streaming. However, it typically suffers from several issues, i.e., low sample efficiency and lack of awareness of the video quality information. In this paper, we propose Comyco, a video quality-aware ABR approach that enormously improves the learning-based methods by tackling the above issues. Comyco trains the policy via imitating expert trajectories given by the instant solver, which can not only avoid redundant exploration but also make better use of the collected samples. Meanwhile, Comyco attempts to pick the chunk with higher perceptual video qualities rather than video bitrates. To achieve this, we construct Comyco's neural network architecture, video datasets and QoE metrics with video quality features. Using trace-driven and real-world experiments, we demonstrate significant improvements of Comyco's sample efficiency in comparison to prior work, with 1700x improvements in terms of the number of samples required and 16x improvements on training time required. Moreover, results illustrate that Comyco outperforms previously proposed methods, with the improvements on average QoE of 7.5% - 16.79%. Especially, Comyco also surpasses state-of-the-art approach Pensieve by 7.37% on average video quality under the same rebuffering time.
description: ACM Multimedia 2019
GRACIELA BARRAQUÉ: A SYMBOL OF THE TEACHING OF CUBAN GEOGRAPHY
Creators: name: Alvarez Cruz, Pedro
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 390106
subject: Geography education curriculum and pedagogy

description: This article reveals the most significant aspects of the life and pedagogical work of Dr. G. Barraqué, who, as a symbol of geographic education due to her dedication and love for the teaching profession, can be a model for new generations of educators to follow.
Nonperturbative Continuity in Graviton Mass versus Perturbative Discontinuity
Creators: name: Deffayet, Cedric
name: Dvali, Gia
name: Gabadadze, Gregory
name: Vainshtein, Arkady
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We address the question whether a graviton could have a small nonzero mass. The issue is subtle for two reasons: there is a discontinuity in the mass in the lowest tree-level approximation, and, moreover, the nonlinear four-dimensional theory of a massive graviton is not defined unambiguously. First, we reiterate the old argument that for the vanishing graviton mass the lowest tree-level approximation breaks down since the higher order corrections are singular in the graviton mass. However, there exist nonperturbative solutions which correspond to the summation of the singular terms and these solutions are continuous in the graviton mass. Furthermore, we study a completely nonlinear and generally covariant five-dimensional model which mimics the properties of the four-dimensional theory of massive gravity. We show that the exact solutions of the model are continuous in the mass, yet the perturbative expansion exhibits the discontinuity in the leading order and the singularities in higher orders as in the four-dimensional case. Based on exact cosmological solutions of the model we argue that the helicity-zero graviton state which is responsible for the perturbative discontinuity decouples from the matter in the limit of vanishing graviton mass in the full classical theory.
description: Phys Rev D version, 21 pages, 1 figure, a reference and some clarifications are added, typos corrected
Maiestas butleri
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Maiestas
Maiestas butleri

description: Maiestas butleri (Distant). Comb. nov.
 Deltocephalus butleri Distant, 1918: 83, India.
 Deltocephalus (Recilia) butleri (Distant) Dash & Viraktamath, 1998: 7 (in key).
 Type material examined. Syntypes: 2♀, S. India, Kodai Kanal, T.V. Campbell (BMNH). One of the syntypes also has a Distant handwritten determination label with the word ‘type’, a BMNH red type disc and a label: “S. India, E.A. Butler, 1915-60”.
 Remarks. This species is tentatively included in Maiestas pending the examination of males. It can be distinguished externally by the extra cross veins in the forewing and a fine brown line parallel to the fore margin of the head either side of the midline. The former character would key out the species in the first couplet of Dash & Viraktamath’s, 1998 key.
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 40
Universal measurement apparatus controlled by quantum software
Creators: name: Fiurasek, Jaromir
name: Dusek, Miloslav
name: Filip, Radim
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a quantum device that can approximate any projective measurement on a qubit. The desired measurement basis is selected by the quantum state of a "program register". The device is optimized with respect to maximal average fidelity (assuming uniform distribution of measurement bases). An interesting result is that if one uses two qubits in the same state as a program the average fidelity is higher than if he/she takes the second program qubit in the orthogonal state (with respect to the first one). The average information obtainable by the proposed measurements is also calculated and it is shown that it can get different values even if the average fidelity stays constant. Possible experimental realization of the simplest proposed device is presented.
description: 4 pages, 2 figures, reference added
MOESM6 of Repeated mosquito net distributions, improved treatment, and trends in malaria cases in sentinel health facilities in Papua New Guinea
Creators: name: Rodriguez-Rodriguez, Daniela
name: Seri Maraga
name: Lorry, Lina
name: Robinson, Leanne
name: Siba, Peter
name: Mueller, Ivo
name: Pulford, Justin
name: Ross, Amanda
name: Hetzel, Manuel
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 6. Malaria incidence by age group and sex.
Direct n-body simulations of tidal disruption rate evolution in unequal-mass galaxy mergers
Creators: name: Li, Shuo
name: Berczik, Peter
name: Chen, Xian
name: Liu, F. K.
name: Spurzem, Rainer
name: Qiu, Yu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The hierarchical galaxy formation model predicts supermassive black hole binaries (SMBHBs) in galactic nuclei. Due to the gas poor environment and the limited spatial resolution in observations they may hide in the center of many a galaxy. However, a close encounter of a star with one of the supermassive black holes (SMBHs) may tidally disrupt it to produce a tidal disruption event (TDE) and temporarily light up the SMBH. In a previous work, we investigated with direct N-BODY simulations the evolution of TDE rates of SMBHB systems in galaxy mergers of equal mass. In this work we extend to unequal mass mergers. Our results show that, when two SMBHs are far away from each other, the TDE rate of each host galaxy is similar as in an isolated galaxy. As the two galaxies and their SMBHs separation shrinks, the TDE rate is increasing gradually until it reaches a maximum shortly after the two SMBHs become bound. In this stage, the averaged TDE rate can be enhanced by several times to an order of magnitude relative to isolated single galaxies. Our simulations show that the dependence of the TDE accretion rate on the mass ratio in this stage can be well fitted by power law relations for both SMBHs. After the bound SMBHB forms, the TDE rate decreases with its further evolution. We also find that in minor mergers TDEs of the secondary SMBH during and after the bound binary formation are mainly contributed by stars from the other galaxy.
description: 27 pages, 6 figures, accepted by ApJ
Maiestas campbelli Webb & Viraktamath 2009, Comb. nov.
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Maiestas
Maiestas campbelli

description: Maiestas campbelli (Distant) Comb. nov. (Fig. 13)
 Deltocephalus campbelli Distant 1918: 82, India.
 Deltocephalus (Recilia) campbelli (Distant), Dash & Viraktamath, 1998: 7 (in key).
 Type material examined. Syntypes: 2♀, S. India, Kodai Kanal, T.V.Campbell (on same mount with “KK 5.15” on underside of specimen mount) plus Distant’s hand written determination label with the word ‘Type’ and a museum red type disc.
 Additional material. S. India: 1♂, 1♀, same data as syntypes (on same mount with another specimen of a different species, with “KK 5.14” handwritten on the underside of the specimen mount (see “ Material and Methods - T.V. Campbell material”); 1♀, S. India, Madras, Coonoor, T.V. Campbell (recent label); “C 4.15[?]” handwritten on underside of specimen mount.
 Remarks. The male genitalia of this species are given for the first time.
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 40
Classical and Quantum Oscillators of Sextic and Octic Anharmonicities
Creators: name: Pathak, Anirban
name: Mandal, Swapan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Classical oscillators of sextic and octic anharmonicities are solved analytically up to the linear power of λ(Anharmonic Constant) by using Taylor series method. These solutions exhibit the presence of secular terms which are summed up for all orders. The frequency shifts of the oscillators for small anharmonic constants are obtained. It is found that the calculated shifts agree nicely with the available results to-date. The solutions for classical anharmonic oscillators are used to obtain the solutions corresponding to quantum anharmonic oscillators by imposing fundamental commutation relations between position and momentum operators.
description: 13 pages, latex 2e, 1 figure Journal Reference: Phys. Lett. A (2002) in press
Terminaliamide, a new ceramide and other phytoconstituents from the roots of Terminalia mantaly H. Perrier and their biological activities
Creators: name: Teinkela, Jean Emmanuel Mbosso
name: Noundou, Xavier Siwe
name: Fannang, Simone
name: Song, Achille Mbem
name: Nguedia, Jules Clément Assob
name: Hoppe, Heinrich C.
name: Krause, Rui Werner Maçedo
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Terminaliamide (1), a new ceramide was isolated from the roots of Terminalia mantaly H. Perrier (Combretaceae) along with 4 known compounds (2–5). The structures of the compounds were elucidated using 1D and 2D NMR spectroscopy analysis and mass spectrometry. Compound 1 exhibited moderated antibacterial activity towards Staphylococcus aureus with MIC value of 62.5 μg/mL. The crude MeOH extract (TMr) highly reduced Plasmodium falciparum growth with an IC50 value of 10.11 μg/mL, while hexane fraction (F1) highly reduced Trypanosoma brucei brucei growth with an IC50 value of 5.60 µg/mL. All tested samples presented little or no in vitro cytotoxicity on HeLa cell line. The present work confirms that T. mantaly is medicinally important and may be used effectively as an antimicrobial, an antiplasmodial and an antitrypanosomial with promising therapeutic index.
Proton Decay, Fermion Masses and Texture from Extra Dimensions in SUSY GUTs
Creators: name: Kakizaki, Mitsuru
name: Yamaguchi, Masahiro
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In supersymmetry, there are gauge invariant dimension 5 proton decay operators which must be suppressed by a mass scale much larger than the Planck mass. It is natural to expect that this suppression should be explained by a mechanism that explains the hierarchical structure of the fermion mass matrices. We apply this argument to the case where wave functions of chiral multiplets are localized under a kink background along an extra spatial dimension and the Yukawa couplings as well as the coefficients of the proton decay operators are determined by the overlap of the relevant wave functions. A configuration is found in the context of SU(5) supersymmetric grand unified theory that yields realistic values of quark masses, mixing angles, CP phase and charged lepton masses and sufficiently small genuine dimension 5 proton decay operators. Inclusion of SU(5) breaking effects is essential in order to obtain non-vanishing CP phase as well as correct lepton masses. The resulting mass matrix has a texture structure in which texture zeros are a consequence of extremely small overlap of the wave functions. Our approach requires explicit breaking of supersymmetry in the extra dimension, which can be realized in (de)constructing extra dimension.
description: 23 pages, 2 figures, comments added
Maiestas coronata Webb & Viraktamath 2009, Comb. nov.
Creators: name: Webb, Michael D.
name: Viraktamath, Chandra A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Maiestas
Maiestas coronata

description: Maiestas coronata (Melichar) Comb. nov. (Fig. 43)
 Deltocephalus coronatus Melichar, 1904: 45, Ethiopia.
 Type material examined. Syntypes: 1♂, 1♀, Ethiopia: Gonale, 12.iv.1901 (MMB).
 Remarks. The male genitalia of this species are illustrated for the first time. The aedeagus is very similar to angustisecta and lobata.
description: Published as part of Webb, Michael D. & Viraktamath, Chandra A., 2009, 2163, pp. 1-64 in Zootaxa 2163 on page 40
ISAM PPIG Global Survey on COVID-19 and Substance Use — Questionnaire
Creators: name: Parnian Rafei
Publisher: name: figshare
Year: 2021
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: Medicine

description: We conducted a rapid global survey within the International Society of Addiction Medicine (ISAM) network in order to understand the status of substance-use patterns during the current pandemic.