cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A földrajzi jelzés oltalmában részesülő magyar termékek ismertsége
Creators: name: Popovics, Anett
name: Gyenge, Balázs
name: Popovics, Anett
name: Gyenge, Balázs
Publisher: name: Unknown
Year: 2005
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: Magyarország agrárökológiai adottságai, mezőgazdasági és élelmiszeripari hagyományai kedvező lehetőséget nyújtanak a különleges minőségű élelmiszerek iránti fogyasztói igények kielégítésére. Az Európai Unió túltelített piacán egyre inkább ezek a nemzeti jelleggel rendelkező regionális termékek kerülhetnek előtérbe. A német fogyasztók körében végzett (nem reprezentatív) kutatásunkban bizonyítani próbáltuk, hogy a hagyományos élelmiszereket előnyben részesítik a piacon, és előtérbe kerülnek a következő terméktulajdonságok: eredet, származási hely (régió), hagyományos jelleg. Ennek alapján megállapítható, hogy az eredetvédelemmel rendelkező termékek versenyelőnyhöz juthatnak az Európai Unióban, és az ún. standard termékektől eltérően népszerűsítésükben speciális marketingstratégia kidolgozása válik szükségessé. ---------------- The agro-ecological characteristics, agricultural and food-industrial traditions of Hungary provide a good possibility for satisfying consumer demand for special, high quality foodstuffs. It is these regional products with a national character that tend to prevail increasingly on over-stocked EU markets. We attempted to test the idea among German consumers (not representatively), that traditional foodstuffs on the markets are preferred and product characteristics such as origin, place of production (region), traditional quality is sought after. On the basis of this study we can state that products with geographical marking enjoy a competitive advantage in the European Union and unlike in case of standard products a special marketing strategy is required for their popularization.
Quark Effects in the Gluon Condensate Contribution to the Scalar Glueball Correlation Function
Creators: name: Harnett, D.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One-loop quark contributions to the dimension-four gluon condensate term in the operator product expansion (OPE) of the scalar glueball correlation function are calculated in the MS-bar scheme in the chiral limit of $n_f$ quark flavours. The presence of quark effects is shown not to alter the cancellation of infrared (IR) singularities in the gluon condensate OPE coefficients. The dimension-four gluonic condensate term represents the leading power corrections to the scalar glueball correlator and, therein, the one-loop logarithmic contributions provide the most important condensate contribution to those QCD sum-rules independent of the low-energy theorem (the subtracted sum-rules).
description: latex2e, 6 pages, 7 figures embedded in latex file
A fixed-parameter tractable algorithm for combinatorial filter reduction
Creators: name: Zhang, Yulin
name: Shell, Dylan A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: What is the minimal information that a robot must retain to achieve its task? To design economical robots, the literature dealing with reduction of combinatorial filters approaches this problem algorithmically. As lossless state compression is NP-hard, prior work has examined, along with minimization algorithms, a variety of special cases in which specific properties enable efficient solution. Complementing those findings, this paper refines the present understanding from the perspective of parameterized complexity. We give a fixed-parameter tractable algorithm for the general reduction problem by exploiting a transformation into clique covering. The transformation introduces new constraints that arise from sequential dependencies encoded within the input filter -- some of these constraints can be repaired, others are treated through enumeration. Through this approach, we identify parameters affecting filter reduction that are based upon inter-constraint couplings (expressed as a notion of their height and width), which add to the structural parameters present in the unconstrained problem of minimal clique covering. Compared with existing work, we precisely identify and quantitatively characterize those features that contribute to the problem's hardness: given a problem instance, the combinatorial core may be a fraction of the instance's full size, with a small subset of constraints needing to be considered, and even those may have directly identifiable couplings that collapse degrees of freedom in the enumeration.
description: 19 pages, 5 figures
Factors Determining the Adoption of Energy-saving Technologies in Swiss Firms: An Analysis Based on Micro Data
Creators: name: Arvanitis, Spyridon
name: Ley, Marius Christian
Publisher: name: ETH Zurich
Year: 2010
Subjects: ENERGIESPAREN IM BAUWESEN
Technology adoption
ENERGY SAVING IN BUILDING
SWITZERLAND (CENTRAL EUROPE). SWISS CONFEDERATION
SCHWEIZ (MITTELEUROPA). SCHWEIZERISCHE EIDGENOSSENSCHAFT
ENERGY SAVING IN INDUSTRIAL PROCESSES (ENERGY TECHNOLOGY)
ENERGIESPAREN IN DER INDUSTRIE (ENERGIETECHNIK)
Energy-saving technologies
info:eu-repo/classification/ddc/333.7
info:eu-repo/classification/ddc/330
Natural resources, energy and environment
Economics

description: KOF Working Papers, 257
One dimensional nexus objects, network of Kibble-Lazarides-Shafi string walls, and their spin dynamic response in polar distorted B-phase of $^3$He
Creators: name: Zhang, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Kibble-Lazarides-Shafi (KLS) domain wall problem in the axion solution of CP violation in QCD has condensed-matter based analogy in the nafen-distorted superfluid $^3$He. Recent experiment in rotating superfluid $^3$He produced the network of KLS string walls in human controllable system. In this system, KLS string wall appears in two-step symmetry break transition from normal phase to polar-distorted B phase and turn out to be the descendants of HQVs of polar phase. Here we show the KLS string wall smoothly connects to spin solitons when the spin orbital coupling is taken into account. This means HQVs are 1D nexus which connects the spin solitons and the KLS domain walls. This is because the subgroup $G=π_{1}(S_{S}^{1},\tilde{R}_{2})$ of relative homotopy group describing the spin solitons is isomorphic to the group describing the half spin vortices -- the spin textures KLS string wall. In the nafen-distorted $^3$He system, 1D nexus objects and the spin solitons with topological invariant $2/4$ form two different types of network, which are named as pseudo-random lattices of inseparable and separable spin solitons. These two types lattices correspond to two different representations of $G$. We discuss the condition under which pseudo-random lattices model works. The equilibrium configuration and surface densities of free energies are calculated by numeric minimization. Based on the equilibrium spin textures of different pseudo-random lattices, we calculated their transverse NMR spectrum, the resulted frequency shifts and $\sqrtΩ$-scaling of ratio intensity exactly coincide with the experimental measurements. We also discussed the mirror symmetry in the presence of KLS domain wall and the influence of the explicitly break of this discrete symmetry. Our discussions and considerations can be applied to the composite defects in other condensed matter and cosmological system.
description: 28 pages, 13 figures
Magnetic properties of half metal from the paramagnetic phase: DFT+DMFT study of exchange interactions in CrO$_2$
Creators: name: Katanin, A. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study magnetic properties of CrO$_2$ within the density functional theory plus dynamical mean-field theory (DFT+DMFT) approach in the paramagnetic phase. We consider the 3-orbital (per Cr site) model, containing only $t_{2g}$ states, the $5$-orbital model, including all $d$-states, as well as the model including also the oxygen $p$-states. Using the recently proposed approach of calculation of exchange interactions in paramagnetic phase, we extract exchange interaction parameters and magnon dispersions for these models. While the magnon dispersion in the 3-orbital model possesses negative branches in accordance with previous studies in ferromagnetic phase, this drawback is removed in the $5$-orbital model. The model including oxygen states (with purely local interaction at chromium sites) overestimates the exchange interactions and spin wave stiffness. While this overestimate is partly corrected by including non-local interaction between chromium and oxygen states within mean-field approximation, the $5$-orbital model appears as most adequate for describing magnetic properties of CrO$_2$ with local Coulomb interaction. The possibility of describing magnetic properties of this material starting from paramagnetic phase points to the correspondence of magnetic properties in this phase and ferromagnetic phase, as well as important contributions of double exchange in paramagnetic phase of CrO$_2$.
description: 12 pages, 6+2 figures
A pilot study examining the feasibility of a follow-up intervention for men following a radical prostatectomy
Creators: name: Currie, Alison Margaret
Publisher: name: University of British Columbia
Year: 2010

description: The overall aim of this pilot study was to determine the feasibility of conducting a largescale randomized clinical trial of an expanded discharge follow-up intervention following radical prostatectomy (RP). A pretest-posttest 3-group experimental design was chosen as the research method. From a sample of convenience, 15 men who had a RP were randomly assigned to 1 of 3 groups who received a telephone call at 48 hours using the standard form; at 48 hours using an expanded form; or two telephone calls, at 48 hours and 10 days, using the expanded form. The men’s level of satisfaction with information and care received were measured pre-intervention and 30 days post-intervention. No significant results were found. The men’s symptom distress was measured using the Symptom Distress Scale (SDS) at 48 hours, 10 days, and 30 days postdischarge. No significant results were found as the men’s system distress lessened over time and a ceiling effect was observed. Recommendations for revising selected instruments and using other instruments are discussed. Field notes were maintained that described aspects of the study’s methodology pertaining to accessing a population of men. Findings suggest that to generate an adequate sample size for a full-scale study a sample of men will need to be recruited from other hospitals in the Lower Mainland and the eligibility criteria will need to be expanded. The major information need found at 48 hours post-discharge was how to care for the Foley catheter. The main support need identified was emotional support while the men waited for their pathology report. At 10 days post-discharge the major information need described by the men was managing urinary incontinence and performing Kegel exercises. The major support need at this time involved providing emotional support as the men coped with urinary incontinence.
Silicate-break galaxies: an efficient selection method of distant ultraluminous infrared galaxies
Creators: name: Takagi, T.
name: Pearson, C. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a photometric selection method for ULIRGs in the redshift range of z=1 -- 2. We utilize the most prominent spectral feature of ULIRGs, i.e. the silicate absorption feature at 9.7 micron and an optimized filter system at mid-infrared wavelengths. These `silicate-break' galaxies could be selected by using colour anomalies owing to the silicate absorption feature around 9.7(1+z) micron. Such filter systems are available on the Spitzer Space Telescope but we suggest that the most promising selection criteria would be given with mid-infrared bands of ASTRO-F satellite due to a more comprehensive set of filter bands than that of Spitzer. We study the selection method of silicate-break galaxies with the SED model of both starbursts and quiescent star-forming galaxies, and then verify the method by using the observed spectra of nearby galaxies. We would expect that about 1000 candidates of silicate-break galaxies could be detected per square degree in current and future mid-infrared surveys. The silicate-break selection criteria will break the degeneracy between various galaxy evolution models for extragalactic source counts and place strong limits on the star formation activity at z=1 -- 2. Applying our silicate-break technique to initial Spitzer results we have tentatively identified the first candidate silicate-break galaxy at z=1.6.
description: 8 pages, 10 figures. Accepted version for publication in MNRAS
Small error algorithms for tropical group testing
Creators: name: Paligadu, Vivekanand
name: Johnson, Oliver
name: Aldridge, Matthew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider a version of the classical group testing problem motivated by PCR testing for COVID-19. In the so-called tropical group testing model, the outcome of a test is the lowest cycle threshold (Ct) level of the individuals pooled within it, rather than a simple binary indicator variable. We introduce the tropical counterparts of three classical non-adaptive algorithms (COMP, DD and SCOMP), and analyse their behaviour through both simulations and bounds on error probabilities. By comparing the results of the tropical and classical algorithms, we gain insight into the extra information provided by learning the outcomes (Ct levels) of the tests. We show that in a limiting regime the tropical COMP algorithm requires as many tests as its classical counterpart, but that for sufficiently dense problems tropical DD can recover more information with fewer tests, and can be viewed as essentially optimal in certain regimes.
A Dimension-Independent Bound on the Wasserstein Contraction Rate of a Geodesic Random Walk on the Sphere
Creators: name: Schär, Philip
name: Stier, Thilo D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G50 (Primary) 60J05, 65C05 (Secondary)

description: We theoretically analyze the properties of a geodesic random walk on the Euclidean $d$-sphere. Specifically, we prove that the random walk's transition kernel is Wasserstein contractive with a contraction rate which can be bounded from above independently of the dimension $d$. Our result is of particular interest due to its implications regarding the potential for dimension-independent performance of both geodesic slice sampling on the sphere and Gibbsian polar slice sampling, which are Markov chain Monte Carlo methods for approximate sampling from essentially arbitrary distributions on their respective state spaces.
description: 11 pages, 1 figure
On the Fourier coefficients of the perturbation written using the angle variable near a separatrix loop
Creators: name: Okunev, Alexey
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 10109 Ordinary Differential Equations, Difference Equations and Dynamical Systems
subject: FOS: Mathematics

description: For a Hamiltonian system with one degree of freedom with the Hamiltonian depending on a parameter we consider an arbitrary analytic function that depends on the phase point, the parameter, and also is periodically dependent on the time. We prove an estimate for the Fourier coefficients of this function as a periodic function of the angle (from the pair of action-angle variables) and time. This estimate is important to study time-periodic perturbations of such systems, as such functions arise naturally as the coefficients of the perturbed system written using the angle variable. Having an estimate for the Fourier coefficients is needed for the application of the averaging method and for the study of the resonances.
The estimate we prove is most likely known to experts. However, we were unable to find a reference for it and it is crucial to the research project ''Adiabatic invariance in two-frequency dynamical systems with separatrix crossing'' we are working on. This is why we have written down its proof as this preprint.
And Action: TV Sentiment and the US Consumer
Creators: name: Uhl, Matthias W.
Publisher: name: ETH Zurich
Year: 2010
Subjects: KONSUMVERHALTEN + KONSUMENTENVERHALTEN
TV sentiment
CONSUMER BEHAVIOUR
PRIVATE CONSUMPTION
VEREINIGTE STAATEN VON AMERIKA, USA (NORDAMERIKA)
Private consumption
PRIVATER KONSUM
TELEVISION TRANSMISSION (TELECOMMUNICATIONS)
FERNSEHÜBERTRAGUNG (NACHRICHTENWESEN)
UNITED STATES OF AMERICA, USA (NORTH AMERICA)
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 268
The explosion energy of the type IIP supernova SN 2013fs with a confined dense circumstellar shell
Creators: name: Chugai, N. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The recent study of SN 2013fs flash spectrum suggests enormous for SN IIP explosion energy, far beyond possibilities of the neutrino mechanism. The issue of the explosion energy of SN 2013fs is revisited making use of effects of the early supernova interaction with the dense circumstellar shell. The velocity of the cold dense shell between reverse and forward shocks is inferred from the analysis of the broad \heii\,4686\,Å on day 2.4. This velocity alongside with other observables provide us with an alternative energy estimate of $\sim1.8\times10^{51}$\,erg for the preferred mass of $\sim10$\msun. The inferred value is within the range of the neutrino driven explosion.
description: Accepted for MNRAS
One-Loop MHV Amplitudes in Supersymmetric Gauge Theories
Creators: name: Quigley, Callum
name: Rozali, Moshe
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using CSW rules for constructing scalar Feynman diagrams from MHV vertices, we compute the contribution of $\mathcal {N}=1$ chiral multiplet to one-loop MHV gluon amplitude. The result agrees with the one obtained previously using unitarity-based methods, thereby demonstrating the validity of the MHV-diagram technique, in the case of one-loop MHV amplitudes, for all massless supersymmetric theories.
description: 20 pages, 5 figures
Discovery of a Cool, Massive, and Metal-Rich DAZ White Dwarf
Creators: name: Gianninas, A.
name: Dufour, P.
name: Bergeron, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a new metal-rich DAZ white dwarf, GD 362. High signal-to-noise optical spectroscopy reveals the presence of spectral lines from hydrogen as well as CaI, CaII, MgI, and FeI. A detailed model atmosphere analysis of this star yields an effective temperature of Teff = 9740 +/- 50 K, a surface gravity of log g = 9.12 +/- 0.07, and photospheric abundances of log Ca/H = -5.2 +/- 0.1, log Mg/H = -4.8 +/- 0.1, and log Fe/H = -4.5 +/- 0.1. White dwarf cooling models are used to derive a mass of 1.24 Mo for GD 362, making it the most massive and metal-rich DAZ uncovered to date. The problems related to the presence of such large metal abundances in a nearby (d ~ 25 pc) white dwarf in terms of an accretion scenario are briefly discussed.
description: 11 pages, 3 figures, accepted for publication in the ApJ Letters
Feedback rectifiable pairs and stabilization of switched linear systems
Creators: name: Honecker, Maria C.
name: Gernandt, Hannes
name: Wulff, Kai
name: Trunk, Carsten
name: Reger, Johann
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 93D15, 93C30, 93B52, 93B55

description: We address the feedback design problem for switched linear systems. In particular we aim to design a switched state-feedback such that the resulting closed-loop subsystems share the same eigenstructure. To this effect we formulate and analyse the feedback rectification problem for pairs of matrices. We present necessary and sufficient conditions for the feedback rectifiability of pairs for two subsystems and give a constructive procedure to design stabilizing state-feedback for a class of switched systems. In particular the proposed algorithm provides sets of eigenvalues and corresponding eigenvectors for the closed-loop subsystems that guarantee stability for arbitrary switching. Several examples illustrate the characteristics of the problem considered and the application of the proposed design procedure.
Spitzer IRAC Observations of Star Formation in N159 in the LMC
Creators: name: Jones, Terry J.
name: Woodward, Charles E.
name: Boyer, Martha L.
name: Gehrz, Robert D.
name: Polomski, Elisha
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present observations of the giant HII region complex N159 in the LMC using IRAC on the {\it Spitzer Space Telescope}. One of the two objects previously identified as protostars in N159 has an SED consistent with classification as a Class I young stellar object (YSO) and the other is probably a Class I YSO as well, making these two stars the youngest stars known outside the Milky Way. We identify two other sources that may also be Class I YSOs. One component, N159AN, is completely hidden at optical wavelengths, but is very prominent in the infrared. The integrated luminosity of the entire complex is L $\approx 9\times10^6$L$_{\odot}$, consistent with the observed radio emission assuming a normal Galactic initial mass function (IMF). There is no evidence for a red supergiant population indicative of an older burst of star formation. The N159 complex is 50 pc in diameter, larger in physical size than typical HII regions in the Milky Way with comparable luminosity. We argue that all of the individual components are related in their star formation history. The morphology of the region is consistent with a wind blown bubble $\approx 1-2Myr-old that has initiated star formation now taking place at the rim. Other than its large physical size, star formation in N159 appears to be indistinguishable from star formation in the Milky Way.
description: 14 figures
Transversity in the chiral quark--soliton model and single spin asymmetries
Creators: name: Efremov, A. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A short review of single spin asymmetries in deep inelastic semi-inclusive processes, connected with prediction of chiral quark-soliton model for the nucleon transversity distributions, its possible theoretical understanding in the framework of QCD-induced approach and arising difficulties is given.
description: Contribution to the Festschrift on the occasion of Klaus Goeke's 60th birthday, to appear in Annalen der Physik, 13 pages, 15 figures
On The Stabilizer Formalism And Its Generalization
Creators: name: Descamps, Éloi
name: Dakić, Borivoje
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The standard stabilizer formalism provides a setting to show that quantum computation restricted to operations within the Clifford group are classically efficiently simulable: this is the content of the well-known Gottesman-Knill theorem. This work analyzes the mathematical structure behind this theorem to find possible generalizations and derivation of constraints required for constructing a non-trivial generalized Clifford group. We prove that if the closure of the stabilizing set is dense in the set of $SU(d)$ transformations, then the associated Clifford group is trivial, consisting only of local gates and permutations of subsystems. This result demonstrates the close relationship between the density of the stabilizing set and the simplicity of the corresponding Clifford group. We apply the analysis to investigate stabilization with binary observables for qubits and find that the formalism is equivalent to the standard stabilization for a low number of qubits. Based on the observed patterns, we conjecture that a large class of generalized stabilizer states are equivalent to the standard ones. Our results can be used to construct novel Gottesman-Knill-type results and consequently draw a sharper line between quantum and classical computation.
description: 18 pages, 0 figure
From Rags to Riches: How Robust is the Influence of Culture on Entrepreneurial Activity?
Creators: name: Busch, Christian
name: Lassmann, Andrea
Publisher: name: ETH Zurich
Year: 2010
Subjects: UNTERNEHMERTUM
SELF-EMPLOYED PERSONS AND FREE-LANCE PERSONS (PERSONS)
GEOGRAFISCHE MOBILITÄT DER ARBEITSKRÄFTE + BERUFLICHE MIGRATION
ENTREPRENEURSHIP
SELBSTÄNDIGE UND FREISCHAFFENDE (PERSONEN)
GEOGRAPHICAL MOBILITY OF WORKFORCE + OCCUPATIONAL MIGRATION
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 267
Binding and metabolism of tetrachlorobiphenyls by Cytochrome P450 enzymes : structure-activity relationships
Creators: name: Edwards, Patrick Robert
Publisher: name: University of British Columbia
Year: 2010

description: Polychlorinated biphenyls (PCBs) are a class of persistent organic pollutants that bioaccumulate in humans and wildlife. Cytochrome P450 (CYP) enzymes play a critical role in the biotransformation of PCBs. The objective of this study was to explore structure-activity relationships between the chlorine substitution pattern of PCBs and their interaction with CYP enzymes. Benzyloxy-, ethoxy- and methoxyresorufin 0-dealkylase (BROD, EROD and MROD, respectively) activities were determined in the presence of four symmetrically substituted PCBs: 2,2’,4,4’-tetrachlorobiphenyl (PCB 47), 2,2’,5,5’-tetrachlorobiphenyl (PCB 52), 2,2’,6,6’-tetrachlorobiphenyl( PCB 54) and 3,3’,4,4’-tetrachlorobiphenyl (PCB 77). The most potent inhibitor of MROD and EROD activities was PCB 77 with approximate Ki values of 10 nM and 46 nM, respectively. PCB 47 and PCB 52 inhibited MROD activity with Ki values of 15 μM and 9 μM, respectively, and inhibited EROD activity with Ki values of 5.5 μM and 6.5 μM, respectively. PCB 54 was unable to inhibit EROD or MROD activity. PCB 47, 52 and 54 inhibited BROD activity with Ki values of 440 nM, 60 nM and 100 nM, respectively. BROD activity was unaffected by PCB 77. A validated and optimized method to analyze PCB 54 biotransformation was developed using liquid chromatography-electrospray mass spectrometry. The major metabolite produced was a monohydroxyl metabolite. The hydroxylation position on the biphenyl ring could not be determined due to a lack of PCB 54 metabolite standards. The rate of formation of the monohydroxyl metabolite was compared in hepatic microsomes from corn oil-, 3-methylcholanthrene (MC)-, phenobarbital (PB)- and dexamethasone (DEX)-treated rats. No metabolite was detectable when PCB 54 was incubated with hepatic microsomes from MC- or corn oil-treated rats. Metabolite formation was greater using hepatic microsomes from PB-treated rats than DEX-treated rats. The involvement of CYP enzymes was investigated further using a panel of recombinant rat CYP enzymes. The rate of monohydroxyl metabolite formation was 5.9 pmol/min/pmol CYP in SUPERSOMES expressing CYP2B1. The only other recombinant CYP enzyme that metabolized PCB 54 was CYP3A1, which had a rate of formation of 0.03 pmol/min/pmol CYP. In summary, the results demonstrate the involvement of the CYP2B enzymes and CYP3A enzymes in the biotransformation of PCB 54.
The information content of capacity utilisation rates for output gap estimates
Creators: name: Graff, Michael
name: Sturm, Jan-Egbert
Publisher: name: ETH Zurich
Year: 2010
Subjects: Output gap
BRUTTOINLANDSPRODUKT
DATA COLLECTION (MATHEMATICAL STATISTICS)
DATENERHEBUNG (MATHEMATISCHE STATISTIK)
Survey data
ECONOMIC PRODUCTIVITY
GROSS DOMESTIC PRODUCT
RESSOURCENNUTZUNG (WIRTSCHAFT)
Real-time analysis
WIRTSCHAFTLICHE PRODUKTIVITÄT
RESOURCES EXPLOITATION (ECONOMY)
Capacity utilisation
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 269
Predictions for high-frequency radio surveys of extragalactic sources
Creators: name: De Zotti, Gianfranco
name: Ricci, Roberto
name: Mesa, Dino
name: Silva, Laura
name: Mazzotta, Pasquale
name: Toffolatti, Luigi
name: Gonzalez-Nuevo, Joaquin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present detailed predictions of the contributions of the various source populations to the counts at frequencies of tens of GHz. New evolutionary models are worked out for flat-spectrum radio quasars, BL Lac objects, and steep-spectrum sources. Source populations characterized by spectra peaking at high radio frequencies, such as extreme GPS sources, ADAF/ADIOS sources and early phases of gamma-ray burst afterglows are also dealt with. The counts of different populations of star-forming galaxies (normal spirals, starbursts, high-z galaxies detected by SCUBA and MAMBO surveys, interpreted as proto-spheroidal galaxies) are estimated taking into account both synchrotron and free-free emission, and dust re-radiation. Our analysis is completed by updated counts of Sunyaev-Zeldovich effects in clusters of galaxies and by a preliminary estimate of galactic-scale Sunyaev-Zeldovich signals associated to proto-galactic plasma.
description: 12 pages, 14 figures, to be published in A&A
How Do Different Motives for R&D Investment in Foreign Locations Affect Domestic Firm Performance?: An Analysis Based on Swiss Panel Micro Data
Creators: name: Arvanitis, Spyridon
name: Hollenstein, Heinz
Publisher: name: ETH Zurich
Year: 2010
Subjects: SUCCESS IN BUSINESS
INNOVATION MANAGEMENT (BUSINESS MANAGEMENT)
Research and development (R&D)
FORSCHUNG UND ENTWICKLUNG
Motives of foreign R&D
RESEARCH AND DEVELOPMENT
Home effects of foreign R&D
Foreign R&D
GESCHÄFTSERFOLG
INNOVATIONSMANAGEMENT (UNTERNEHMENSFÜHRUNG)
Firm performance
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 258
Full paper 039.pdf
Creators: name: Kanchana Geeth Samaraweera
Publisher: name: figshare
Year: 2020
Subjects: subject: 140216 Tourism Economics
subject: FOS: Economics and business

description: Tourism is one of the enormous and emerging sectors in the world economy which contributes about 10% to global gross domestic product. As an island Sri Lanka has great opportunities to promote tourism. Hikkaduwa is one of the eye catching areas which can be mesmerized both international and domestic tourists. Sri Lankan tourism industry is in a backward position in promoting domestic tourism. Under this backdrop this study seeks to investigate the Influence of 5A’s on Domestic Tourists’ Satisfaction in Hikkaduwa, Sri Lanka. The general objective of this study is to identify the Western province domestic tourists’ perception towards the satisfaction gained by 5A’s in Hikkaduwa. Furthermore, the study attempts to identify the factors that influence the Domestic Tourists’ Satisfaction in Hikkaduwa. The study adopted the convenience sampling technique to generate a sample of 485. The operational methodology for this study is a factor analysis which has three stages. First stage is the Exploratory Factor Analysis to identify the major factors that influence the domestic tourists’ satisfaction in Hikkaduwa. Second stage is the Confirmatory Factor Analysis to confirm the identified major factors from the Exploratory Factor Analysis. Finally, the Structural Equation Model to identify the relationships between the identified factors in the model. The study found that Accommodation, Amenities, Attractions, Accessibility and Activities influence the domestic tourists’ satisfaction in Hikkaduwa. Moreover, the study revealed that Accommodation, Amenities, Attractions, Accessibility and Activities have a significantly positive impact on domestic tourists’ satisfaction in Hikkaduwa. However, the activities impact 95% on domestic tourists’ satisfaction and it is the most crucial factor.
Pair creation of higher dimensional black holes on a de Sitter background
Creators: name: Dias, Oscar J. C.
name: Lemos, Jose' P. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study in detail the quantum process in which a pair of black holes is created in a higher D-dimensional de Sitter (dS) background. The energy to materialize and accelerate the pair comes from the positive cosmological constant. The instantons that describe the process are obtained from the Tangherlini black hole solutions. Our pair creation rates reduce to the pair creation rate for Reissner-Nordstrom-dS solutions when D=4. Pair creation of black holes in the dS background becomes less suppressed when the dimension of the spacetime increases. The dS space is the only background in which we can discuss analytically the pair creation process of higher dimensional black holes, since the C-metric and the Ernst solutions, that describe respectively a pair accelerated by a string and by an electromagnetic field, are not know yet in a higher dimensional spacetime.
description: 10 pages; 1 figure included; RexTeX4. v2: References added. Published version. v3: Typo in equation (46) fixed
The Prime Number Theorem as a Capstone in a Complex Analysis Course
Creators: name: Garcia, Stephan Ramon
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Overview (math.HO)
subject: Complex Variables (math.CV)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We present a detailed proof of the prime number theorem suitable for a typical undergraduate- or graduate-level complex analysis course. Our presentation is particularly useful for any instructor who seeks to use the prime number theorem for a series of capstone lectures, a scaffold for a series of guided exercises, or as a framework for an inquiry-based course. We require almost no knowledge of number theory, for our aim is to make a complete proof of the prime number theorem widely accessible to complex analysis instructors. In particular, we highlight the potential pitfalls and subtleties that may catch the instructor unawares when using more terse sources.
description: 26 pages
A matching pursuit approach to the geophysical inverse problem of seismic travel time tomography under the ray theory approximation
Creators: name: Schneider, Naomi
name: Michel, Volker
name: Sigloch, Karin
name: Totten, Eoghan J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 41A45, 45Q05, 65D15, 65J20, 65R32, 68T05, 86-10, 86A15, 86A22

description: Seismic travel time tomography is a geophysical imaging method to infer the 3-D interior structure of the solid Earth. Most commonly formulated as a linear(ized) inverse problem, it maps differences between observed and expected wave travel times to interior regions where waves propagate faster or slower than the expected average. The Earth's interior is typically parametrized by a single kind of localized basis function. Here we present an alternative approach that uses matching pursuits on large dictionaries of basis functions.
 Within the past decade the (Learning) Inverse Problem Matching Pursuits ((L)IPMPs) have been developed. They combine global and local trial functions. An approximation is built in a so-called best basis, chosen iteratively from an intentionally overcomplete set or dictionary. In each iteration, the choice for the next best basis element reduces the Tikhonov-Phillips functional. This is in contrast to classical methods that use either global or local basis functions. The LIPMPs have proven its applicability in inverse problems like the downward continuation of the gravitational potential as well as the MEG-/EEG-problem from medical imaging.
 Here, we remodel the Learning Regularized Functional Matching Pursuit (LRFMP), which is one of the LIPMPs, for travel time tomography in a ray theoretical setting. In particular, we introduce the operator, some possible trial functions and the regularization. We show a numerical proof of concept for artificial travel time delays obtained from a contrived model for velocity differences. The corresponding code is available at https://doi.org/10.5281/zenodo.8227888 under the licence CC-BY-NC-SA 3.0 DE.
The Supersonic Project: To cool or not to cool Supersonically Induced Gas Objects (SIGOs)?
Creators: name: Chiou, Yeou S.
name: Naoz, Smadar
name: Burkhart, Blakesley
name: Marinacci, Federico
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supersonically Induced Gas Objects (SIGOs) primarily form in the early Universe, outside of dark matter halos due to the presence of a relative stream velocity between baryons and dark matter. These structures may be the progenitors of globular clusters. Since SIGOs are made out of pristine gas, we investigate the effect of atomic cooling on their properties. We run a suite of simulations by using the moving-mesh code {\sc arepo}, with and without baryon-dark matter relative velocity and with and without the effects of atomic cooling. We show that SIGO's density, temperature, and prolateness are determined by gravitational interactions rather than cooling. The cold gas fraction in SIGOs is much higher than that of dark matter halos. Specifically, we show that the SIGO's characteristic low temperature and extreme high gas density forges a nurturing ground for the earliest star formation sites.
description: 12 pages, 9 figures, accepted by ApJ, expanded motivation and updated figures
FORMATIVE ASSESSMENT PRACTICES IN THE MALAYSIAN ENGLISH LANGUAGE PRIMARY CLASSROOM
Creators: name: SUMATI MUNIANDY
name: JASMINE JAIN
name: RAMESH NAIR
Publisher: name: Zenodo
Year: 2024
Subjects: FA, Primary School, Summative Assessment, Teacher Training.

description: Abstract

The CEFR-aligned Malaysian English language curriculum prioritises English language teachers’ incorporation of formative assessment (FA) practices in primary schools. Nevertheless, studies on FA practices remain lacking despite much research on internalising the curriculum implications on classroom practices. This study aimed to examine primary English language teachers’ FA practices to better comprehend the degree to which the new curriculum is implemented in class. The FA practices of three teachers from various schools were assessed through interview sessions. Resultantly, discrepancies in how teachers internalise FA were identified. Large class sizes, insufficient time, heavy syllabus and timetable load, mixed learner abilities, incomprehensive assessment handbook, unsupportive parent attitudes, and inadequate assessment training. The findings have implications for improving the quality of in-service training of teachers, and the effective implementation of FA practices in the classroom to improve the delivery of English language lessons.
A Twistor Approach to One-Loop Amplitudes in N=1 Supersymmetric Yang-Mills Theory
Creators: name: Bedford, James
name: Brandhuber, Andreas
name: Spence, Bill
name: Travaglini, Gabriele
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the twistor string theory inspired formalism introduced in hep-th/0407214 for calculating loop amplitudes in N=4 super Yang-Mills theory to the case of N=1 (and N=2) super Yang-Mills. Our approach yields a novel representation of the gauge theory amplitudes as dispersion integrals, which are surprisingly simple to evaluate. As an application we calculate one-loop maximally helicity violating (MHV) scattering amplitudes with an arbitrary number of external legs. The result we obtain agrees precisely with the expressions for the N=1 MHV amplitudes derived previously by Bern, Dixon, Dunbar and Kosower using the cut-constructibility approach.
description: 31 pages, 6 figures
Quebras Estruturais Sistêmicas e Efeito Threshold na Dinâmica dos Preços do Boi Gordo: o caso das regiões Sudeste e Centro-Oeste
Creators: name: Soares, Thiago Costa
name: Lopes, Luckas Sabioni
name: Soares, Thiago Costa
name: Lopes, Luckas Sabioni
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Beef cattle
subject: market integration
subject: structural breaks
subject: Southeast
subject: Central-West
subject: Brazil.

description: In this paper, we aimed to investigate beef cattle markets integration, when taking into account structural breaks in multivariate (auto)regressions, and transaction costs, in the Southeast and Central-West regions in Brazil. Data set is monthly, ranging from 1980 to 2012. Our methodological approach is built on two main blocks: first, time series are divided into smaller samples sharing common characteristics, according to the structural breaks test due to Qu and Perron (2007); second, momentum threshold model (M-TAR, ENDERS; SIKLOS, 2001) is employed addressing to issues as cointegration parâmeand asymmetrical adjustment. Our results show two significant breaks, one related to the hyperinflationary period, and another to the 2007/2008 financial crisis. Moreover, those breaks are decisive to understand the time series dynamics. For instance, in the hyperinflationary sample, transaction costs were higher, although markets were integrated. Conversely, between 2007 and 2012, prices were not synchronized, while transaction costs were almost non-significant. Thus, integration analyses that do not consider structural breaks may mislead some relevant aspects of the data.
Semiaffine stable planes
Creators: name: Löwen, Rainer
name: Stroppel, Markus Johannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 51H10, 51M30

description: A locally compact stable plane of positive topological dimension will be called semiaffine if for every line $L$ and every point $p$ not in $L$ there is at most one line passing through $p$ and disjoint from $L$. We show that then the plane is either an affine or projective plane or a punctured projective plane (i.e., a projective plane with one point deleted). We also compare this with the situation in general linear spaces (without topology), where P. Dembowski showed that the analogue of our main result is true for finite spaces but fails in general.
أثار المتغيرات الاقليمية والدولية على قطاع اللحوم الحمراء
Creators: name: Soliman, Ibrahim
name: Soliman, Ibrahim
Publisher: name: Unknown
Year: 1998
Subjects: subject: International Development
subject: Livestock Production/Industries
subject: The effect of regional and international variables on the red meat sector
subject: red meat
subject: red meat production

description: National Symposium for the study of the comprehensive plan for the development of the production of red meat sector and the promotion of projects in the Arab world, September 22 to 24, 1998, Cairo, the Arab League, the Arab Organization for Agricultural Development, in cooperation with the Ministry of Agriculture, Egypt
COMPLEX-IT: A Case-Based Modeling and Scenario Simulation Platform for Social Inquiry
Creators: name: Schimpf, Corey
name: Castellani, Brian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Software (cs.MS)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: COMPLEX-IT is a case-based, mixed-methods platform for social inquiry into complex data/systems, designed to increase non-expert access to the tools of computational social science (i.e., cluster analysis, artificial intelligence, data visualization, data forecasting, and scenario simulation). In particular, COMPLEX-IT aids social inquiry though a heavy emphasis on learning about the complex data/system under study, which it does by (a) identifying and forecasting major and minor clusters/trends; (b) visualizing their complex causality; and (c) simulating scenarios for potential interventions. COMPLEX-IT is accessible through the web or can be run locally and is powered by R and the Shiny web framework.
Do gasoline prices converge in a unified Europe with non-harmonized tax rates?
Creators: name: Dreher, Axel
name: Krieger, Tim
Publisher: name: ETH Zurich
Year: 2005
Subjects: price convergence
EUROPA
gasoline
PRICE FLUCTUATIONS
law of one price
STEUERN (ÖFFENTLICHE FINANZEN)
European integration
GASOLINE (PETROLEUM CHEMISTRY)
panel unit roots
BENZIN (PETROCHEMIE)
PREISBEWEGUNG
TAXES (PUBLIC FINANCE)
international taxation
EUROPE
info:eu-repo/classification/ddc/330
Economics

description: KOF Working Papers, 114
اقتصاديات الجاموس المصرى
Creators: name: Soliman, Ibrahim
name: Soliman, Ibrahim
Publisher: name: Unknown
Year: 1988
Subjects: Farm Management
Livestock Production/Industries
Production Economics
Productivity Analysis
Public Economics

description: Scientific and cultural bulletin entitled "Spotlight on buffalo" issued by the Egyptian Veterinary Association for the Development of Buffalo, the fourth year, fourth edition, December 1988
Long-range-enhanced surface codes
Creators: name: Hong, Yifan
name: Marinelli, Matteo
name: Kaufman, Adam M.
name: Lucas, Andrew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The surface code is a quantum error-correcting code for one logical qubit, protected by spatially localized parity checks in two dimensions. Due to fundamental constraints from spatial locality, storing more logical qubits requires either sacrificing the robustness of the surface code against errors or increasing the number of physical qubits. We bound the minimal number of spatially nonlocal parity checks necessary to add logical qubits to a surface code while maintaining, or improving, robustness to errors. We saturate the lower limit of this bound, when the number of added logical qubits is a constant, using a family of hypergraph product codes, interpolating between the surface code and constant-rate low-density parity-check codes. Fault-tolerant protocols for logical gates in the quantum code can be inherited from its classical parent codes. We provide near-term practical implementations of this code for hardware based on trapped ions or neutral atoms in mobile optical tweezers. Long-range-enhanced surface codes outperform conventional surface codes using hundreds of physical qubits, and represent a practical strategy to enhance the robustness of logical qubits to errors in near-term devices.
description: 23 pages, 15 figures, 1 table; v2 changes: fixed typos and added citations; v3 changes: updated numerics and new logical gadgets; v4 changes: reworded abstract and incorporated referee suggestions