Results 81 to 90 of about 277,143 (293)
Exploring personality traits and mental toughness in early career teachers in England
British Educational Research Journal, EarlyView.Abstract While some teachers thrive, in similar circumstances other teachers encounter considerable difficulties. This is particularly concerning in England, where high numbers of teachers with five or fewer years' experience leave the profession to take another job outside of teaching, and pupil numbers are outpacing teacher numbers (Bryan & Price ...
Joanne E. Taberner, Sarah MacQuarrie
wiley +1 more source
Entropy, 2020 Continuous drive friction welding is a solid-state welding process that has been experimentally proven to be a fast and reliable method. This is a complex process; deformations in the viscosity of a material alter the friction between the surfaces of the
Daniel Soares de Alcantara +3 more
doaj +1 more source
Kurtosis transformation and kurtosis ordering [PDF]
Leptokurtic distributions can be generated by applying certain non-linear transformations to a standard normal random variable. Within this work we derive general conditions for these transformations which guarantee that the generated distributions are ...
Fischer, Matthias J., Klein, Ingo
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Business Strategy and the Environment, EarlyView.ABSTRACT Though prior studies have explored the effects of firms' social media marketing activities on customer engagement, the dynamics characterizing this association in bottom‐of‐the‐pyramid (BoP) markets remain tenuous, exposing a critical gap. Addressing this gap, we develop and test a model assessing (a) the effects of firms' sustainable social ...
Md. Al Amin +4 more
wiley +1 more source
A UAV Detection Algorithm Based on an Artificial Neural Network
IEEE Access, 2018 This work was supported in part by the National Natural Science Foundation of China under Grant 61701462 and Grant 41527901, in part by the Qingdao National Laboratory for Marine Science and Technology under Grant 2017ASKJ01, in part by the Qingdao ...
Hao Zhang +3 more
doaj +1 more source
Autorregresive conditional volatility, skewness and kurtosis [PDF]
This paper proposes a GARCH-type model allowing for time-varying volatility, skewness and kurtosis. The model is estimated assuming a Gram-Charlier series expansion of the normal density function for the error term, which is easier to estimate than the ...
León, Angel +2 more
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Business Strategy and the Environment, EarlyView.ABSTRACT This study examines the economic consequences of Digital Technologies Disclosure (DTD), focusing on its impact on the cost of capital. The increasing significance of digital transformation in shaping corporate strategies and market perceptions motivates the study.
Hussein Mohsen Saber Ahmed +2 more
wiley +1 more source
Electronic Journal of Plant BreedingYield components related to grain yield were severely affected by salinity. For the agronomically important traits, precise phenotyping of crop plants is essential under stress where soil heterogeneity is aggravated for genetic analysis and developing ...
C. Yoglakshmi, Rajan Isha Pearl, V. Vengadessan, J. Karthick and S. Thirumeni*
doaj +1 more source
Entropy, 2017 The paper devises a family of leptokurtic bell-shaped distributions which is based on the hyperbolic secant raised to a positive power, and bridges the Laplace and Gaussian laws on asymptotic arguments.
Mario Faliva, Maria Grazia Zoia
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Portfolio Decisions with Higher Order Moments [PDF]
In this paper, we address the global optimization of two interesting nonconvex problems in finance. We relax the normality assumption underlying the classical Markowitz mean-variance portfolio optimization model and consider the incorporation of skewness
Berc Rustem, P. M. Kleniati
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