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- Donald A. Preece
- 1967

- Donald A. Preece
- 1966

This paper provides some new, simple designs for the simultaneous estimation of the effects of two non-interacting sets of treatments, with two-way elimination of heterogeneity. The designs are… (More)

- Donald A. Preece
- 1966

This paper describes and lists certain block designs for two non-interacting sets of treatments. The designs have the following properties: (a) each set of treatments is arranged relative to blocks… (More)

This note sketches a biological context for the negative binomial distribu- tion, gives some of the many equivalent mathematical notations that have been used for the negative binomial probabilities,… (More)

- Peter J. Owens, Donald A. Preece
- Ars Comb.
- 1996

This note gives what is believed to be the first published example of a symmetric 11 x 11 Latin square which, although not cyclic, has the property that the permutation between any two rows is an… (More)

- Donald A. Preece
- Australasian J. Combinatorics
- 2008

“Daisy, Daisy, give me your answer, do!” [10] For any positive integer n, the units of Zn are those elements of Zn \ {0} that are coprime with n. The number of units in Zn is given by Euler’s totient… (More)

- Lars R. McNaughton, Donald A. Preece
- British journal of sports medicine
- 1986

Alcohol has been used as an aid to performance for a considerable period of time in many athletic endeavours. Five sprinters and five middle distance athletes were tested to determine whether… (More)

- Donald A. Preece
- 1976

Statisticians are interested in designs for two non-interacting sets of treatments. These designs present many interesting combinatorial problems. The subject is reviewed from a combinatorial… (More)

- Ian Anderson, Donald A. Preece
- Discrete Mathematics
- 2003

A power-sequence terrace for Zn is defined to be a terrace which can be partitioned into segments one of which contains merely the zero element of Zn, whilst each other segment is either (a) a… (More)

- Ian Anderson, Donald A. Preece
- Discrete Mathematics
- 2004

Abstract A power-sequence terrace for Z n is a Z n terrace that can be partitioned into segments one of which contains merely the zero element of Z n whilst each other segment is either (a) a… (More)