cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A white dwarf bound to the transiting planetary system WASP-98
Creators: name: Southworth, John
name: Tremblay, P. -E.
name: Gaensicke, B. T.
name: Evans, D. F.
name: Mocnik, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: WASP-98 is a planetary system containing a hot Jupiter transiting a late-G dwarf. A fainter star 12 arcsec distant has previously been identified as a white dwarf, with a distance and proper motion consistent with a physical association with the planetary system. We present spectroscopy of the white dwarf, with the aim of determining its mass, radius and temperature and hence the age of the system. However, the spectra show the featureless continuum and lack of spectral lines characteristic of the DC class of white dwarfs. We therefore fitted theoretical white dwarf spectra to the ugriz apparent magnitudes and Gaia DR2 parallax of this object in order to determine its physical properties and the age of the system. We find that the system is old, with a lower limit of 3.6 Gyr, but theoretical uncertainties preclude a precise determination of its age. Its kinematics are consistent with membership of the thick disc, but do not allow us to rule out the thin-disc alternative. The old age and low metallicity of the system suggest it is subject to an age-metallicity relation, but analysis of the most metal-rich and metal-poor transiting planetary systems yields only insubstantial evidence of this. We conclude that the study of bound white dwarfs can yield independent ages to planetary systems, but such analysis may be better-suited to DA and DB rather than DC white dwarfs.
description: Accepted for publication in MNRAS. 7 pages, 1 table, 5 colour figures
title: A middle-aged woman with a rare abdominal vascular malformation
Creators: name: Vanhoenacker, Filip
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Mesentery
subject: Veins / Vena cava
subject: CT
subject: Shunts
subject: Congenital
subject: Clinical Cases

description: Clinical History: A 66-year-old female presented to our hospital with a history of an unstable gait and increasing fatigue. Over the last few days, her symptoms had worsened and she was admitted for further work-up. On clinical examination asterixis was noted and laboratory findings showed high serum ammonia levels.

description: 66 years, female
LABOR PROTECTION WHEN WORKING AT HEIGHTS
Creators: name: Golib Shodmonov Dostmurodovich  is an associate professor in the Department of Labor Protection and Technical Safety at Karshi Institute of Engineering and Economics, located at 180100 Mustaqillik street-225, Karshi, Uzbekistan
Publisher: name: Zenodo
Year: 2024

description: In the article, the importance of organizing workplace safety at heights in the development of industrial production sectors is discussed, highlighting the increasing need for construction, production, and industry in Uzbekistan today. The article also analyzes accidents at heights in construction and industrial enterprises.

KEY WORDS AND PHRASES: working at height, ensuring safety, organizing labor protection, providing instructions, rest regime, proper work analysis, safety belts, and barriers
A Cubic Deformation of ABJM: The Squashed, Stretched, Warped, and Perturbed Gets Invaded
Creators: name: Cesaro, Mattia
name: Larios, Gabriel
name: Varela, Oscar
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A superpotential deformation that is cubic in one of the chiral superfields of ABJM makes the latter theory flow into a new, ${\cal N}=2$ superconformal phase. This is holographically dual to a warped $\textrm{AdS}_4 \times_w S^7$ solution of M-theory equipped with a squashed and stretched metric on $S^7$. We determine the spectrum of spin-2 operators of the cubic deformation at low energies by computing the spectrum of Kaluza-Klein (KK) gravitons over the dual AdS$_4$ solution. We calculate, numerically, the complete graviton spectrum and, analytically, the spectrum of gravitons that belong to short multiplets. We also use group theory to assess the structure of the full KK spectrum, and conclude that ${\cal N}=2$ supermultiplets cannot be allocated KK level by KK level. This phenomenon, usually referred to as "space invaders scenario", is also known to occur for another $\textrm{AdS}_4$ solution based on a different squashed $S^7$.
description: 35 pages, 6 figures, 12 tables, typos fixed, additional clarifications added. To appear on JHEP
title: Teaching case: breast neuroma
Creators: name: Vanhoenacker, Filip
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Breast imaging
subject: Breast
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Biopsy
subject: Clinical Cases

description: Clinical History: An 81-year-old female with a history of left mastectomy 4 years prior for invasive breast cancer (IDA G2pT1cN1a (se);ER 8/8, PR 6/8,ISH-;KI67 intermediate). Aromatase inhibitor therapy was initiated. Because of comorbidity and cardiomyopathy, radiotherapy was not administered, despite sentinel node metastasis. 

Previous follow-up imaging was normal.

Clinical examination was unremarkable.

description: 81 years, male
Estimating the Benefits from Improved Market Information
Creators: name: Kizito, Andrew M.
name: Kizito, Andrew M.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Using a partial equilibrium model, the benefits of providing improved agricultural market information to farmers and small-scale traders of maize, millet, sorghum and paddy rice in Mali are estimated. The value of information is estimated as the reduction in dead-weight loss when farmers and small-scale traders with rational expectations respond to improved price forecasts from Market Information Systems. The study finds that benefits from improved information, which can also be viewed as a reduction of the cost of being off the equilibrium price and quantity, are great when there is high uncertainty about future prices, high own-price elasticity of supply, low own-price elasticity of demand, and high value of crop output. The study suggests that crop-specific, localized Market Information Systems (MIS) designed based on local area supply and demand responses to prices have higher returns than national uniformly distributed MISs covering a wide range of commodities in the country.
Exact evolution of time-reversible symplectic integrators and their phase error for the harmonic oscillator
Creators: name: Chin, Siu A.
name: Scuro, Sante R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The evolution of any factorized time-reversible symplectic integrators, when applied to the harmonic oscillator, can be exactly solved in a closed form. The resulting modified Hamiltonians demonstrate the convergence of the Lie series expansions. They are also less distorted than modified Hamiltonian of non-reversible algorithms. The analytical form for the modified angular frequency can be used to assess the phase error of any time-reversible algorithm.
description: Submitted to Phys. Lett. A, Six Pages two Columns
title: Developmental Venous Anomaly with Dystrophic Calcification in the left basal ganglia.
Creators: name: Van Berkel, Brecht
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Neuroradiology
subject: Neuroradiology brain
subject: MR
subject: Clinical Cases

description: Clinical History: A patient with obstructive sleep apnoea syndrome presented with recurring episodes of headache, concentration difficulties and drowsiness. An MRI was performed following a low-dose CT of the sinuses that showed large dystrophic calcifications in the left basal ganglia.

description: 53 years, male
In vitro effect of eltrombopag alone and in combination with azacitidine on megakaryopoiesis in patients with myelodysplastic syndrome
Creators: name: D’Alò, Francesco
name: Zangrilli, Ilaria
name: Cupelli, Elisa
name: Fianchi, Luana
name: Criscuolo, Marianna
name: Falconi, Giulia
name: Fabiani, Emiliano
name: Pagano, Livio
name: Hohaus, Stefan
name: Stefano, Valerio De
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Thrombocytopenia is a severe complication for patients with myelodysplastic syndrome (MDS). Eltrombopag increases platelet count in MDS patients but its combination with azacitidine elicited controversial results. We aimed to quantify the colony forming units of megakaryocytes (CFU-Mk) obtained from CD34+ bone marrow cells isolated from patients with MDS and from healthy donors that were cultured in vitro in the presence or absence of azacitidine and with or without the sequential addition of eltrombopag to the culture medium. CD34+ bone marrow cells from 6 MDS patients and 3 controls were expanded in vitro and cultured for 3 days with or without azacitidine. Subsequently, a CFU-Mk assay was performed in presence or absence of eltrombopag. The addition of eltrombopag in the CFU-Mk assay after mock treatment of CD34+ cells increased the number of CFU-Mk in both controls and patients. On the contrary, using azacitidine pretreated CD34+ cells, eltrombopag minimally increased CFU-Mk in controls and produced heterogeneous response in MDS patients with no change in two patients and CFU-Mk increase in four patients. In vitro CFU-Mk assay suggest that some MDS patients are likely to benefit from the sequential addition of eltrombopag after azacitidine treatment, in the context of a personalized medicine.
Three Dimensional Imaging of Proton in Basis Light-Front Quantization
Creators: name: Xu, Siqi
name: Mondal, Chandan
name: Lan, Jiangshan
name: Zhao, Xingbo
name: Li, Yang
name: Vary, James P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We employ an effective Hamiltonian that includes the transverse and longitudinal confinement and the one-gluon exchange interaction with fixed coupling constant. By solving the eigenvalue equation in basis light-front quantization (BLFQ), we generate the light-front wavefunctions (LFWFs) for the nucleon in the valence quark Fock space. Fitting the model parameters, we obtain high-quality descriptions of electromagnetic form factors and radius for proton while the results deviate somewhat from experimental data for neutron.
Raman spectroscopy and multivariate analysis for the waste and edible vegetable oil classification
Creators: name: Poddighe, Matteo
name: Mannu, Alberto
name: Petretto, Giacomo Luigi
name: Pintore, Giorgio
name: Garroni, Sebastiano
name: Malfatti, Luca
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Twelve samples of waste cooking oil (WCO) were prepared by four different deep-frying procedures. The edible and the waste oil samples were characterised by Raman spectroscopy, revealing few and almost negligible differences between them. Therefore, the possibility of classifying the different groups of samples by extracting valuable data from the Raman spectra through statistical multivariate analysis was explored. Even if the number of samples was not enough to draw definitive conclusions, unsupervised principal component analysis (PCA) and supervised partial least square discriminant analysis (PLS-DA) conducted on the raw Raman signals, allowed to distinguish within edible and waste vegetable oil, and to select the most relevant combination of variables associated with each family. Using sparse partial least square discriminant analysis (S-PLS-DA), we determined a chemical fingerprint characteristic of each sample by creating a Variable In Projection (VIP) plot. The methodology herein presented could find relevant application in the detection of waste adulteration in vegetable oils sold for industrial purposes other than food.
Thrombocytosis in an infant with a TRPV4 mutation: a case report
Creators: name: Thom, Christopher S.
name: Brandsma, Erik
name: Lambert, Michele P.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Mutations in the calcium channel gene Transient Receptor Potential cation channel subfamily V member 4 (TRPV4) cause autosomal dominant skeletal dysplasia, with phenotypes ranging from mild to perinatal lethality. A recent report detailed enhanced proplatelet formation and increased murine platelet count in the context of TRPV4 activation. No prior reports have described platelet count abnormalities in human TRPV4 disease. Here, we report a case of prolonged thrombocytosis in the context of TRPV4-associated metatropic dysplasia that was lethal in the infantile period.
A two dimensional model for ferromagnetic martensites
Creators: name: Sreekala, S.
name: Ananthakrishna, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider a recently introduced 2-D square-to-rectangle martensite model that explains several unusual features of martensites to study ferromagnetic martensites. The strain order parameter is coupled to the magnetic order parameter through a 4-state clock model. Studies are carried out for several combinations of the ordering of the Curie temperatures of the austenite and martensite phases and, the martensite transformation temperature. We find that the orientation of the magnetic order which generally points along the short axis of the rectangular variant, changes as one crosses the twin or the martensite-austenite interface. The model shows the possibility of a subtle interplay between the growth of strain and magnetic order parameters as the temperature is decreased. In some cases, this leads to qualitatively different magnetization curves from those predicted by earlier mean field models. Further, we find that strain morphology can be substantially altered by the magnetic order. We have also studied the dynamic hysteresis behavior. The corresponding dissipation during the forward and reverse cycles has features similar to the Barkhausen's noise.
description: 9 pages, 11 figures
Impact evaluation of research by the International Food Policy Research Institute on agricultural trade liberalization, developing countries, and WTO's Doha negotiations
Creators: name: Hewitt, Joanna
name: Hewitt, Joanna
Publisher: name: Unknown
Year: 2008
Subjects: Agricultural and Food Policy

description: This report assesses the impact of IFPRI’s work on the agriculture negotiations in the WTO’s Doha Round. It is set against the context of IFPRI’s mission which emphasizes food security and the interests of poor people in low-income countries and underlines the importance of active engagement in policy communications to link research work to policy action. The report also traces briefly the evolution of IFPRI’s work on international agricultural trade more generally, noting its broad disposition to market-oriented policy prescriptions while illuminating the very different impacts of agricultural trade liberalization on individual developing countries through detailed research at the national and household level.
Search for pentaquarks at Belle
Creators: name: Mizuk, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for the strange pentaquark $Θ^+$ using kaon interactions in the material of the Belle detector. No signal is observed in the $p K_S$ final state, while in the $p K^-$ final state we observe $\sim 1.6 \cdot 10^4$ $Λ(1520) \to p K^-$ decays. We set an upper limit on the ratio of $Θ^+$ to $Λ(1520)$ yields $σ(Θ^+) / σ(Λ(1520)) < 2%$ at 90% CL assuming that the $Θ^+$ is narrow. We also report on searches for strange and charmed pentaquarks in B meson decays. These results are obtained from a 155$fb^{-1}$ data sample collected with the Belle detector near the $Υ(4S)$ resonance, at the KEKB asymmetric energy $e^+ e^-$ collider.
description: 10 pages, 6 figures. To appear in the Proceedings of the PENTA04 conference in Kobe, Japan. These results were also presented by Belle at the ICHEP04 conference in Beijing, China and at the FPCP04 conference in Daegu, Korea. Minor correction
Impact of high on-treatment platelet reactivity after angioplasty in patients with peripheral arterial disease
Creators: name: Busch, Lucas
name: Stern, Manuel
name: Dannenberg, Lisa
name: Mourikis, Philipp
name: Gröne, Michael
name: Göksen Özaslan
name: Heinen, Yvonne
name: Heiss, Christian
name: Sansone, Roberto
name: Polzin, Amin
name: Kelm, Malte
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Objective: High on-treatment platelet reactivity (HTPR) to dual antiplatelet therapy (DAPT) predicts adverse events in coronary artery disease patients. In peripheral artery disease (PAD) patients, data concerning the clinical impact of HTPR are limited. Therefore, we evaluated the incidence of (i) HTPR to DAPT and (ii) its impact on 6 months outcome after angioplasty. Methods and results: In this prospective single center analysis, we investigated 102 consecutive patients with PAD from 2016 to 2017. All patients underwent peripheral endovascular treatment due to intermittent claudication (Fontaine IIb). Clopidogrel effects were measured using vasodilator-stimulated protein phosphorylation (VASP) assay, aspirin effects by light-transmission aggregometry (LTA). Major adverse limb events (MALE), major adverse cardiac and cerebrovascular events (MACCE) and BARC bleeding (bleeding academic research consortium classification) within 6 months were assessed. HTPR to clopidogrel (n = 37, 36%), to aspirin (n = 11, 11%) and to both (n = 11, 11%) were frequent. Compared to sufficient platelet inhibition by aspirin and clopidogrel (n = 43, 42%), patients with dual HTPR showed a higher risk of MALE at 6 months (27% vs. 7%; hazard ratio [HR]: 4.45; 95% confidence interval [CI]: 1.1 to 67.8; p = .03). This was independent of diabetes, creatinine, body mass index, and age as well as of procedural details in a multivariate logistic regression analysis. MACCE (n = 2) and BARC bleeding rates (n = 2) were low. Conclusion: In this small exploratory study, HTPR was frequent in PAD patients. Furthermore, the results are suggestive that MALE might be associated with dual HTPR. This leads to the hypothesis that optimized antithrombotic regimens post percutaneous transluminal angioplasty should be tested in clinical trials.
Hamiltonian Flows of Curves in symmetric spaces G/SO(N) and Vector Soliton Equations of mKdV and Sine-Gordon Type
Creators: name: Anco, Stephen C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The bi-Hamiltonian structure of the two known vector generalizations of the mKdV hierarchy of soliton equations is derived in a geometrical fashion from flows of non-stretching curves in Riemannian symmetric spaces G/SO(N). These spaces are exhausted by the Lie groups G=SO(N+1),SU(N). The derivation of the bi-Hamiltonian structure uses a parallel frame and connection along the curves, tied to a zero curvature Maurer-Cartan form on G, and this yields the vector mKdV recursion operators in a geometric O(N-1)-invariant form. The kernel of these recursion operators is shown to yield two hyperbolic vector generalizations of the sine-Gordon equation. The corresponding geometric curve flows in the hierarchies are described in an explicit form, given by wave map equations and mKdV analogs of Schrodinger map equations.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/ Minor changes made (typos corrected and more discussion added about parallel frames and vector SG equations)
Lightning optimizes: a threshold mechanism ensures minimum-path flow
Creators: name: Blanchini, Franco
name: Casagrande, Daniele
name: Fabiani, Filippo
name: Giordano, Giulia
name: Palma, David
name: Pesenti, Raffaele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: Classical Physics (physics.class-ph)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: A well-known property of linear resistive electrical networks is that the current distribution minimizes the total dissipated energy. When the circuit includes resistors with nonlinear monotonic characteristic, the current distribution minimizes in general a different functional. We show that, if the nonlinear characteristic is a threshold-like function and the energy generator is concentrated in a single point, as in the case of lightning or dielectric discharge, then the current flow is concentrated along a single path, which is a minimum path to the ground with respect to the threshold. We also propose a dynamic model that explains and qualitatively reproduces the lightning transient behaviour: initial generation of several plasma branches and subsequent dismissal of all branches but the one reaching the ground first, which is the optimal one.
Ageing effects around the glass and melting transitions in poly(dimethylsiloxane) visualized by resistance measurements
Creators: name: Brom, H. B.
name: Romijn, I. G.
name: Magis, J. G.
name: van der Vleuten, M.
name: Michels, M. A. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The process of ageing in rubbers requires monitoring over long periods (days to years). To do so in non-conducting rubbers, small amounts of carbon-black particles were dispersed in a fractal network through the rubber matrix, to make the rubber conducting without modifying its properties. Continuous monitoring of the resistance reveals the structural changes around the glass and melting transitions and especially details about the hysteresis and ageing processes. We illustrate the method for the semicrystalline polymer poly(dimethylsiloxane) (PDMS).
description: 4 pages, 4 figures
Overlap Equivalence in the Edwards-Anderson Model
Creators: name: Contucci, Pierluigi
name: Giardina, Cristian
name: Giberti, Claudio
name: Vernia, Cecilia
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the relative fluctuations of the link overlap and the square standard overlap in the three dimensional Gaussian Edwards-Anderson model with zero external field. We first analyze the correlation coefficient and find that the two quantities are uncorrelated above the critical temperature. Below the critical temperature we find that the link overlap has vanishing fluctuations for fixed values of the square standard overlap and large volumes. Our data show that the conditional variance scales to zero in the thermodynamic limit. This implies that, if one of the two random variables tends to a trivial one (i.e. delta-like distributed), then also the other does and, by consequence, the TNT picture should be dismissed. We identify the functional relation among the two variables using the method of the least squares which turns out to be a monotonically increasing function. Our results show that the two overlaps are completely equivalent in the description of the low temperature phase of the Edwards-Anderson model.
description: Latex file, 8 Pages, 4 Figures. To appear in: Physical Review Letters
Inelastic Dark Matter Electron Scattering and the XENON1T Excess
Creators: name: Harigaya, Keisuke
name: Nakai, Yuichiro
name: Suzuki, Motoo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Detection of electron recoils by dark matter (DM) may reveal the structure of the dark sector. We consider a scenario where a heavier DM particle inelastically scatters off an electron and is converted into a lighter DM particle. A small mass difference between the two DM particles is transferred into electron recoil energy. We investigate the DM-electron interaction mediated by a massive dark photon and evaluate the inelastic DM scattering rate, taking account of the atomic structure. It is found that the scattering rate is significantly enhanced because of the small mass splitting, which allows for a small momentum transfer matched with the size of the electron wave function. We show that there exists a viable parameter space which explains the excess of electron recoil events around 2-3 keV recently reported by the XENON1T experiment.
description: 7 pages, 5 figures, version to be published in Physics Letters B
Doppler imaging and differential rotation of $σ^{2}$ Coronae Borealis using SONG
Creators: name: Xiang, Yue
name: Gu, Shenghong
name: Cameron, A. Collier
name: Barnes, J. R.
name: Christensen-Dalsgaard, J.
name: Grundahl, F.
name: Antoci, V.
name: Andersen, M. F.
name: Pallé, P. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new Doppler images of both components of the double-lined binary $σ^{2}$ CrB, based on the high-resolution spectroscopic data collected during 11 nights in 2015 March--April. The observed spectra form two independent data sets with sufficient phase coverage. We apply the least-squares deconvolution to all observed spectra to obtain high signal-to-noise mean profiles, from which we derive the Doppler images of both components of $σ^{2}$ CrB simultaneously. The surfaces of both F9 and G0 components are dominated by pronounced polar spots. The F9 component exhibits a weak spot at latitude 30$^{\circ}$ and its mid-to-low latitudes are relatively featureless. The G0 star shows an extended spot structure at latitude 30$^{\circ}$, and its surface spot coverage is larger than that of the F9 star, which suggests a higher level of magnetic activity. With the cross-correlation method, we derive a solar-like surface differential rotation on the G0 star of $σ^{2}$ CrB for the first time, and the surface shear rate is $ΔΩ= 0.180 \pm 0.004$ rad d$^{-1}$ and $α= ΔΩ/ Ω_{eq} = 0.032 \pm 0.001$. We do not obtain a clear surface shear law for the F9 star due to the lack of mid-to-low latitude features, but detect a systematic longitude shift of high-latitude spots, which indicates a slower rotation with respect to the co-rotating frame.
description: 9 figures, 2 tables, accepted for publication in ApJ
Disorder in Diluted Spin Systems
Creators: name: Hilbert, S.
name: Nolting, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The influence of substitutional disorder on the magnetic properties of diluted Heisenberg spin systems is studied with regard to the magnetic stability of ferromagnetic diluted semiconductors (DMS). The equation of motion for the magnon Green's function within Tyablikov approximation is solved numerically for finite systems. The resulting spectral density is then used to estimate the magnetization and Curie temperature of an infinite system. This method is suitable for any form of a ferromagnetic exchange interaction. Besides different lattices and spin magnitude $S$, exchange interactions of different range are examined. The results show that, for short-range interaction, no magnetic order exists below the critical percolation concentration, whereas a linear dependence of the Curie temperature on the concentration of spins is found for ferromagnetic long-range interaction.
description: 9 pages, 6 figures
Land-Use Credits to Corn Ethanol: Accounting for Distillers Dried Grains with Solubles as a Feed Substitute in Swine Rations
Creators: name: Fabiosa, Jacinto F.
name: Fabiosa, Jacinto F.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: biofuel
subject: DDGS quality
subject: displacement rate
subject: greenhouse gas accounting
subject: land-use credit
subject: optimal
subject: stochastic LP
subject: swine grower-finisher optimal feed ration.

description: Many studies on the impact of biofuels on greenhouse gas emissions do not consider indirect land-use change and land use avoided because of co-products utilization. This paper provides estimates of the land-use credit for corn ethanol when its by-product—distillers dried grains with solubles (DDGS)—is used in swine feed rations to substitute for corn and soymeal. The range of estimates used here covers the land-use credit used in the literature. Moreover, this study departs from earlier studies because feed rations from a least-cost optimization are used rather than rations from feeding trials, and DDGS nutrient profile variability is fully accounted for. As a result, displacement rates and the land-use credit can be better characterized using a distribution rather than a single point estimate. The land-use credit for corn ethanol for DDGS used in swine feed rations ranges from -0.367 to -0.596 hectares, whereby substitution for corn in the feed ration accounts for 56.09% and soymeal substitution contributes 48.46%. Variability of the land-use credit is contributed more by the variability of land use from the substitution of soymeal than that of corn. Finally, when feed compounders discount the DDGS nutrient profile to ensure they are at or above any realized nutrient profile 90% of the time, the land-use credit for corn ethanol declines by 8.47% for DDGS in a swine feed ration.
Investigation of bioactive metabolites produced by the endophytic fungus Aspergillus iranicus from Houttuynia cordata Thunb
Creators: name: Rao, Jiayue
name: Tao, Zhaoyang
name: Chen, Jianshu
name: Yang, Shengli
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: The endophytic fungus Aspergillus iranicus, capable of producing bioactive substances, was isolated from the roots of Houttuynia cordata Thunb. Through chromatographic methods, five compounds were isolated in this study for the first time from the fermentation broth and mycelia of the endophytic fungus Aspergillus iranicus obtained from Houttuynia cordata Thunb. using ethyl acetate extracts. These compounds were identified as palmitic acid (1), protocatechuic acid (2), 4-hydroxybenzophenone (3), stigmasterol (4), and β-sitosterol (5). The IC50 values for compound 2 was 1.32 mg/mL, which indicate strong DPPH radical scavenging activity. Compounds 2, 3, and 5 significantly inhibited the growth of Escherichia coli, demonstrating MIC values of 6.25, 3.13, and 3.13 mg/mL, respectively. Additionally, displaying a MIC value of 0.78 mg/mL, compound 3 demonstrated remarkable inhibition against Candida albicans growth. These findings suggest the presence of endophytic fungi in H. cordata, producing several valuable medicinal secondary metabolites.
Intertwined Magnetic Sub-Lattices in the Double Perovskite Compound LaSrNiReO6
Creators: name: Forslund, Ola Kenji
name: Papadopoulos, Konstantinos
name: Noccerino, Elisabetta
name: Morris, Gerald
name: Hitti, Bassam
name: Arseneau, Donald
name: Pomjakushin, Vladimir
name: Matsubara, Nami
name: Orain, Jean Christophe
name: Kumar, P. Anil
name: Svedlindh, Peter
name: Andreica, Daniel
name: Jana, Somnath
name: Sugiyama, Jun
name: Månsson, Martin
name: Sassa, Yasmine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a muon spin rotation ($μ^{+}$SR) study of the magnetic properties of the double perovskite compound LaSrNiReO$_{6}$. Using the unique length and time scales of the $μ^{+}$SR technique, we successfully clarify the magnetic ground state of LaSrNiReO$_{6}$, which was previously deemed as a spin glass state. Instead, our $μ^{+}$SR results point towards a long-range dynamically ordered ground state below $T_{\rm C}= 23$ K, for which a static limit is foreseen at $T=0$. Furthermore, between 23 K$250$ K) state. Our results reveal how two separate, yet intertwined magnetic lattices interact within the unique double perovskite structure and the importance of using complementary experimental techniques to obtain a complete understanding of the microscopic magnetic properties of complex materials.
description: 11 pages (with references), 11 figures
Strict Deformation Quantization for a Particle in a Magnetic Field
Creators: name: Mantoiu, Marius
name: Purice, Radu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 81S10, 35S05, 47A60; Secondary: 46L55, 81R15

description: Recently, we introduced a mathematical framework for the quantization of a particle in a variable magnetic field. It consists in a modified form of the Weyl pseudodifferential calculus and a C*-algebraic setting, these two points of view being isomorphic in a suitable sense. In the present paper we leave Planck's constant vary, showing that one gets a strict deformation quantization in the sense of Rieffel. In the limit h --> 0 one recovers a Poisson algebra induced by a symplectic form defined in terms of the magnetic field.
description: 23 pages
Past, present and academic perspectives of agribusiness in the twenty first century
Creators: name: Aguilar Valdes, Alfredo
name: Aguilar Valdes, Alfredo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Social-economics sciences
subject: education
subject: agribusiness
subject: agricultural administration.

description: This historical review of the professional academic instruction in the field of agribusiness administration in Mexico is based on facts and experiences that have been gathering since 1973, when administration applied to the rural media reappears as an academic discipline in higher education. Mexico requires urgently more and better qualified technicians, professionals, specialists and experts on the socioeconomic sciences. Particularly, this country has to build up the essential conditions to train the new generations with abilities to solve the agriculture and livestock industry productive problems throughout the country, if Mexico achieves this as a country, the national agrindustrial sector will be able to advance significantly and play an important role, as Mexico, is already part of a global economy distinguished by strict national and international efficiency pressures, It's because of these issues, that Mexico has other choice than becoming highly productive and introduce, as one of it's main goals, the achievement of the alimentary self-sufficiency as any sovereign country.
Relative blocking in posets
Creators: name: Matveev, Andrey O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 06A07, 11B57, 90C27

description: Poset-theoretic generalizations of set-theoretic committee constructions are presented. The structure of the corresponding subposets is described. Sequences of irreducible fractions associated to the principal order ideals of finite bounded posets are considered and those related to the Boolean lattices are explored; it is shown that such sequences inherit all the familiar properties of the Farey sequences.
description: 29 pages. Corrected version of original publication which is available at http://www.springerlink.com, see Corrigendum
title: Актуальные проблемы защиты чести, достоинства и деловой репутации в сети Интернет
Creators: name: Васильева, А.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В статье анализируются актуальные проблемы защиты чести, достоинства и деловой репутации в сети Интернет. Интернет стал неотъемлемой частью жизни общества, однако он же порой является местом для посягательств на права, декларируемые Конституцией Российской Федерации. Автор выделяет острые проблемы, с которыми нередко сталкиваются субъекты права, а также судебные органы.
"Transcolonial circuits" : historical fiction and national identities in Ireland, Scotland, and Canada
Creators: name: Cabajsky, Andrea
Publisher: name: University of British Columbia
Year: 2009

description: '"Transcolonial Circuits': Historical Fiction and National Identities in Ireland, Scotland, and Canada" explores the intersections between gender, canon-formation, and literary genre in order to argue that English- and French-Canadian historical fiction was influenced, both in form and content, by the precedent-setting fictions o f Scotland and Ireland in the early nineteenth century. Conceived in the spirit o f Katie Trumpener's Bardic Nationalism: The Romantic Novel and the British Empire (1997), this dissertation extends Trumpener's examination of nineteenth-century British and Canadian romantic fiction by exploring in greater detail the flow of ideas and literary techniques between Ireland, Scotland, and English and French Canada. It does so in order to revise critical understandings of the formal and thematic origins and development of Canadian historical fiction from the nineteenth century to the present. Chapter One functions as a series of literary snapshots that examine historically the critical and popular reception of novels by Maria Edgeworth and Sydney Owenson in Ireland, Sir Walter Scott in Scotland, John Richardson, William Kirby, and Jean Mcllwraith in English Canada, and Philippe Aubert de Gaspe and Napoleon Bourassa in French Canada. I pay particular attention to the issues o f gender and political ideology as inseparable from the history of the novel itself. In Chapter Two, by focussing on the travel trope, I examine in detail how Irish, Scottish, and Canadian writers transformed the investigative journeys of Samuel Johnson and Arthur Young into journeys of resistance to the dictates of the metropolis. Chapter Three focuses on the complications of marriage as a metaphor o f intercultural union. It pays particular attention to the intersections between gender, sexuality, and colonial identity. The Conclusion extends the concerns raised in the thesis about the relationship between historical writing and national identity to the late-twentieth-century Canadian context, by examining the adaptation of literary and historiographical conventions to the medium of television in the CBC/SRC television series Canada: A People's History, which aired in 2001-02.
Supersaturation in the Wake of a Precipitating Hydrometeor and its Impact on Aerosol Activation
Creators: name: Bhowmick, Taraprasad
name: Wang, Yong
name: Iovieno, Michele
name: Bagheri, Gholamhossein
name: Bodenschatz, Eberhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The secondary activation of aerosols impacts the life cycle of a cloud. A detailed understanding is necessary for reliable climate prediction. Recent laboratory experiments demonstrate that aerosols can be activated in the wake of precipitating hydrometeors. However, many quantitative aspects of this wake-induced activation remain unclear. Here, we report a detailed numerical investigation of the activation potential of wake-induced supersaturation. By Lagrangian tracking of aerosols we show that a significant fraction of aerosols are activated in the supersaturated wake. These 'lucky aerosols' are entrained in the wake's vortices and reside in the supersaturated environment sufficiently long to be activated. Our analyses show that wake-induced activation can contribute at a level similar to other well known secondary production processes.
Diamagnetic response of Aharonov-Bohm rings: Impurity backward scatterings
Creators: name: Kim, Mun Dae
name: Kim, Chul Koo
name: Nahm, Kyun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report a theoretical calculation on the persistent currents of disordered normal-metal rings. It is shown that the diamagnetic responses of the rings in the vicinity of the zero magnetic field are attributed to multiple backward scatterings off the impurities. We observe the transition from the paramagnetic response to the diamagnetic one as the strength of disorder grows using both the analytic calculation and the numerical exact diagonalization.
description: final version
Price Linkage between International Price of Crude Palm Oil (CPO) and Cooking Oil Price in Indonesia
Creators: name: Rifin, Amzul
name: Rifin, Amzul
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: crude palm oil
subject: vector autoregression (VAR)
subject: granger response
subject: impulse response

description: Cooking oil in Indonesia is considered to be one of the staple food of Indonesian people. In the beginning of 2008, the price of cooking oil in Indonesia has increased significantly. One of the reasons is the increase of Crude Palm Oil (CPO) price in the international market. The objective of this research is to investigate the impacts of international price of CPO on the domestic price of CPO and cooking oil. Three specific objectives are included (1) To test whether international price of CPO and domestic price of CPO and cooking oil are related through cointegration tests, (2) To test the causal relationships between international price of CPO and domestic price of CPO and cooking oil and (3) To analyze how domestic price of CPO and cooking oil food prices respond to a change in international price of CPO The result indicates that international price of CPO, domestic price of CPO and cooking oil price are not cointegrated. In addition, using the Granger causality method, it shows that international price of CPO influence the domestic price of CPO and cooking oil price. Meanwhile, domestic price of CPO and cooking oil price affects each other.
Analysis of the 1S and 2S states of the $Λ_Q$ and $Ξ_Q$ with the QCD sum rules
Creators: name: Wang, Zhi-Gang
name: Wang, Hui-Juan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we study the ground states and the first radial excited states of the flavor antitriplet heavy baryon states $Λ_Q$ and $Ξ_Q$ with the spin-parity $J^P={1\over 2}^{+}$ by carrying out the operator product expansion up to the vacuum condensates of dimension $10$ in a consistent way. We observe that the higher dimensional vacuum condensates play an important role, and obtain very stable QCD sum rules with variations of the Borel parameters for the heavy baryon states for the first time. The predicted masses $6.08\pm0.09\,\rm{GeV}$, $2.78\pm0.08\,\rm{GeV}$ and $2.96\pm0.09\,\rm{GeV}$ for the first radial excited states $Λ_b(\rm 2S)$, $Λ_c(\rm 2S)$ and $Ξ_c(\rm 2S)$ respectively are in excellent agreement with the experimental data and support assigning the $Λ_b(6072)$, $Λ_c(2765)$ and $Ξ_c(2980/2970)$ to be the first radial excited states of the $Λ_b$, $Λ_c$ and $Ξ_c$, respectively, the predicted mass $6.24\pm0.07\,\rm{GeV}$ for the $Ξ_b(\rm 2S)$ can be confronted to the experimental data in the future.
description: 15 pages, 17 figures
Waiting for the Discovery of B^0_d -> K^0 \bar K^0
Creators: name: Fleischer, Robert
name: Recksiegel, Stefan
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The CP asymmetries of the decay B_d^0 -> K^0 \bar K^0, which originates from \bar b -> \bar d s \bar s flavour-changing neutral-current processes, and its CP-averaged branching ratio BR(B_d -> K^0 \bar K^0) offer interesting avenues to explore flavour physics. We show that we may characterize this channel, within the Standard Model, in a theoretically clean manner through a surface in observable space. In order to extract the relevant information from BR(B_d -> K^0 \bar K^0), further information is required, which is provided by the B -> pi pi system and the SU(3) flavour symmetry, where we include the leading factorizable SU(3)-breaking corrections and discuss how experimental insights into non-factorizable effects can be obtained. We point out that the Standard Model implies a lower bound for BR(B_d -> K^0 \bar K^0), which is very close to its current experimental upper bound, thereby suggesting that this decay should soon be observed. Moreover, we explore the implications for ``colour suppression'' in the B -> pi pi system, and convert the data for these modes into a peculiar Standard-Model pattern for the CP-violating B_d^0 -> K^0 \bar K^0 observables.
description: 18 pages, 6 figures
Impact assessment of agricultural research in West Africa: an application of the propensity score matching methodology
Creators: name: Liebenehm, Sabine
name: Affognon, Hippolyte
name: Waibel, Hermann
name: Liebenehm, Sabine
name: Affognon, Hippolyte
name: Waibel, Hermann
Publisher: name: Unknown
Year: 2009
Subjects: subject: Farm Management
subject: Livestock Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: African animal trypanosomosis (AAT)
subject: Knowledge
subject: attitude and practice (KAP)
subject: Propensity score matching (PSM)

description: Ex-post evaluation of agricultural research is aimed to empirically provide evidence of past investments’ effectiveness. This paper is intended to measure the immediate impact of livestock research activities on cattle farmers’ knowledge about trypanosomosis and its curative and preventive control strategies. According to the quasi-experimental design of the intervention, it is shown that its impact will be adequately estimated by propensity score matching (PSM). Based on data collected according to a knowledge, attitude and practice (KAP) questionnaire in the region of Kénédougou that is common to Mali and Burkina Faso, results indicate a significant gain in farmers’ know-how due to participation in livestock research activities.
description: Replaced with revised version of paper 07/29/09.