Results 21 to 30 of about 4,555 (128)

Three-way cross designs for animal breeding experiments

open access: yesIndian Journal of Animal Sciences, 2016
Three-way crossbreeding has been a major tool for the development of present day commercial breeds. The hybrids thus produced are more stable and they exhibit individual as well as population buffering mechanism because of the broad genetic base.
MOHD HARUN   +3 more
doaj   +1 more source

Notes on the Regular E-Optimal Spring Balance Weighing Designs with Correlated Errors

open access: yesRevstat Statistical Journal, 2015
The paper deals with the estimation problem of individual weights of objects in Eoptimal spring balance weighing design. It is assumed that errors are equal correlated.
Bronisław Ceranka   +1 more
doaj   +1 more source

Remarks on balanced incomplete block designs [PDF]

open access: yesProceedings of the American Mathematical Society, 1963
PROOF. Assume the hypothesis and the falsity of either conclusion. Construct matrix A of 2x+2 rows and 4x+4 columns, with entries + 1 and - 1. The first column contains exclusively + 1, and the second column - 1. Set up one-to-one correspondences between rows of A and elements of D; between columns other than the first two of A and blocks of D. Enter +
openaire   +1 more source

Missing Data Imputation in Balanced Construction for Incomplete Block Designs

open access: yesMathematics
Observational data with massive sample sizes are often distributed on many local machines. From an experimental design perspective, investigators often desire to identify the effect of new treatments (even ML algorithms) on many blocks of experimental ...
Haiyan Yu   +3 more
doaj   +1 more source

Regular A-optimal Spring Balance Weighing Designs

open access: yesRevstat Statistical Journal, 2012
The problem of indicating an A-optimal spring balance weighing design providing that the measurement errors have different variances and are uncorrelated is considered.
Małgorzata Graczyk
doaj   +1 more source

Two-level Cretan matrices constructed using SBIBD

open access: yesSpecial Matrices, 2015
Two-level Cretan matrices are orthogonal matrices with two elements, x and y. At least one element per row and column is 1 and the other element has modulus ≤ 1.
Balonin N. A., Seberry Jennifer
doaj   +1 more source

Nested balanced incomplete block designs

open access: yesDiscrete Mathematics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Morgan, J. P.   +2 more
openaire   +3 more sources

On imputation for planned missing data in context questionnaires using plausible values: a comparison of three designs

open access: yesLarge-scale Assessments in Education, 2018
Background This paper extends a recent study by Kaplan and Su (J Educ Behav Stat 41: 51–80, 2016) examining the problem of matrix sampling of context questionnaire scales with respect to the generation of plausible values of cognitive outcomes in large ...
David Kaplan, Dan Su
doaj   +1 more source

An adaptable implementation package targeting evidence-based indicators in primary care: A pragmatic cluster-randomised evaluation.

open access: yesPLoS Medicine, 2020
BackgroundIn primary care, multiple priorities and system pressures make closing the gap between evidence and practice challenging. Most implementation studies focus on single conditions, limiting generalisability. We compared an adaptable implementation
Thomas A Willis   +14 more
doaj   +1 more source

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