Results 111 to 120 of about 1,922,795 (290)
School Starting Age and the Gender Pay Gap Over the Life Cycle
Journal of Applied Econometrics, EarlyView.ABSTRACT This paper replicates and extends the evidence on the lifetime effects of school starting age on earnings by Fredriksson and Öckert (2014) for Sweden. Using German data for individuals born between 1945 and 1965, we examine a more rigid system of ability tracking in secondary education, a potential driver of long‐term effects.
Kamila Cygan‐Rehm, Matthias Westphal
wiley +1 more source
Sum of squares decomposition of positive polynomials with rational coefficients
Journal of Pure and Applied AlgebraWe present an example of a strictly positive polynomial with rational coefficients that can be decomposed as a sum of squares of polynomials over $\R$ but not over $\Q$. This answers an open question by C. Scheiderer posed as the second question in Section 5.1 of the paper Sums of squares of polynomials with rational coefficients (2012). We verify that
openaire +3 more sources
ORTORECTIFICATION OF SPOT-4 DATA USING RATIONAL POLYNOMIAL COEFFICIENTS
International Journal of Remote Sensing and Earth Sciences (IJReSES), 2012 Orthorectification of satellite imagery can be done in two ways i.e., rigorous sensor model and the approximation model of the satellite’s orbit. Dependence on physicalparameters, to make rigorous sensor model is more complicated and difficult to apply.
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Catalan Bounds for Symmetric Strength‐Two Orthogonal Arrays
Journal of Combinatorial Designs, EarlyView.ABSTRACT A Hamming shell construction is a two‐level array obtained by taking every binary vector of a given Hamming weight a prescribed number of times, for each weight in turn. Such arrays are invariant under all permutations of the factors, and they are strength‐two orthogonal arrays exactly when the multiplicities satisfy three linear constraints ...
Ruwan C. Karunanayaka
wiley +1 more source
Journal of Organizational Behavior, EarlyView.ABSTRACT In the course of a workday, employees attend to various tasks whose challenge might be equal to, higher than, or lower than employees' present level of capabilities. Moreover, employees encounter these tasks sequentially throughout the day with different levels of prior motivation. Investigating carryover effects in motivation from one task to
Sherry (Qiang) Fu +4 more
wiley +1 more source
International Journal of Applied Earth Observations and GeoinformationDynamic monitoring of reservoir water storage in arid areas is important for water resources assessment, hydroelectric power generation and agricultural irrigation. However, existing reservoir water calculation methods often rely on in-situ measurements,
Weiwei Wang +9 more
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Unicritical polynomial maps with rational multipliers
, 2020 23 pages, 2 figuresIn this article, we prove that every unicritical polynomial map that has only rational multipliers is either a power map or a Chebyshev map.
Huguin, Valentin
core +2 more sources
Heat, Health and Holidays: Reported Heat Related Adjustments to Australian Tourist Behaviour
International Journal of Climatology, EarlyView.This study assessed how climate‐related hazards affect Australian tourists' travel planning. While 80% of tourists report no impact, the 20% who do experience disruption most commonly change their activities, timing, or destination, with heat and rain affecting the same proportion of tourists across beach, city, nature, and family tourism types ...
Kerstin K. Zander +7 more
wiley +1 more source
Remote SensingIn this paper, we propose a 3D Digital Surface Model (DSM) reconstruction method from uncalibrated Multi-view Satellite Stereo (MVSS) images, where Rational Polynomial Coefficient (RPC) sensor parameters are not available.
Dong-Uk Seo, Soon-Yong Park
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Peskine Sixfolds and Debarre–Voisin Fourfolds With Associated Cubic Fourfolds
Mathematische Nachrichten, EarlyView.ABSTRACT We develop the notion of Peskine sixfolds with associated K3 surfaces and cubic fourfolds and work out numerical conditions for when these associations occur. In discriminant 24, the first family for which there is an associated cubic fourfold, we identify the cubic explicitly.
Corey Brooke +3 more
wiley +1 more source