Results 11 to 20 of about 256,651 (263)

Turbulence Measurements with Dual-Doppler Scanning Lidars

open access: yesRemote Sensing, 2019
Velocity-component variances can be directly computed from lidar measurements using information of the second-order statistics within the lidar probe volume.
Alfredo Peña, Jakob Mann
doaj   +1 more source

The Variance Profile [PDF]

open access: yesJournal of the American Statistical Association, 2012
The variance profile is defined as the power mean of the spectral density function of a stationary stochastic process. It is a continuous and nondecreasing function of the power parameter, p, which returns the minimum of the spectrum (p→−∞), the interpolation error variance (harmonic mean, p=−1), the prediction error variance (geometric mean, p=0), the
LUATI, ALESSANDRA, Proietti T., Reale M.
openaire   +5 more sources

Comparison of different traits to evaluate the growth of bulls

open access: yesCzech Journal of Animal Science, 2008
The live weights of 8 243 performance-tested bulls from 100 to 400 days of age were analysed using random regression (RR) and single-trait animal models.
J. Přibyl   +3 more
doaj   +1 more source

Estimating genetic variance contributed by a quantitative trait locus: A random model approach.

open access: yesPLoS Computational Biology, 2022
Detecting quantitative trait loci (QTL) and estimating QTL variances (represented by the squared QTL effects) are two main goals of QTL mapping and genome-wide association studies (GWAS).
Shibo Wang, Fangjie Xie, Shizhong Xu
doaj   +1 more source

Modeling Conditional Volatility of Indian Banking Sector’s Stock Market Returns

open access: yesScientific Annals of Economics and Business, 2017
The study attempts to capture conditional variance of Indian banking sector’s stock market returns across the years 2005 to 2015 by employing different GARCH based symmetric and asymmetric models.
Singh Amanjot
doaj   +1 more source

HEDGING (CO)VARIANCE RISK WITH VARIANCE SWAPS [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2008
In this paper, we quantify the impact on the representative agent's welfare of the presence of derivative products spanning covariance risk. In an asset allocation framework with stochastic (co)variances, we allow the agent to invest not only in the stocks but also in the associated variance swaps.
DA FONSECA J   +2 more
openaire   +3 more sources

On the Variance of Quickselect

open access: yes2006 Proceedings of the Third Workshop on Analytic Algorithmics and Combinatorics (ANALCO), 2006
Quickselect with median-of-three is routinely used as the method of choice for selection of the mth element out of n in general-purpose libraries such as the C++ Standard Template Library. Its average behavior is fairly well understood and has been shown to outperform that of the standard variant, which chooses a random pivot on each stage. However, no
Daligault, Jean   +1 more
openaire   +2 more sources

FLEXIBLE BUDGET OF SPORT COMPETITIONS [PDF]

open access: yesSport Mont, 2009
Manager of sport competition has right to decide and also to take responsibility for costs, income and financial results. From economic point of wiev flexible budget and planning cost calculations is top management base for analyzing success level of ...
Dragan Vukasović
doaj  

Comparing Perceptions of Students, Teachers, and Parents on Disciplinary Issues in Public Senior High Schools – A Case Study of Schools in Kumasi, Ghana [PDF]

open access: yesE-Journal of Humanities, Arts and Social Sciences
The purpose of this study was to examine the perceptions of students, teachers, and parents on disciplinary issues in Public Senior High Schools in Kumasi, Ghana.
Paul Kwasi Kumah   +2 more
doaj   +1 more source

Seasonal and interannual variations of gravity wave activity in the low-latitude mesosphere and lower thermosphere over Tirunelveli (8.7° N, 77.8° E) [PDF]

open access: yesAnnales Geophysicae, 2008
The Mesosphere and Lower Thermosphere (MLT) winds acquired by medium frequency (MF) radar at Tirunelveli (8.7° N, 77.8° E) for the years 1993–2007 are used to study seasonal and interannual variabilities of gravity wave (GW) variances in the ...
S. Sridharan, S. Sathishkumar
doaj   +1 more source

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