Slavtchova-Bojkova, M., 1999. Computation of waiting time to successful experiment using age-dependent branching model. Ecol. Modelling, This paper considers the properties of the waiting time to survive forever of the supercritical age-dependent branching process modified with an immigration component. Conditioning on ultimate extinction of the process we analyze the conditional distribution o...

A reaction diffusion system with a distributed time delay is proposed for virus spread on bacteria immobilized on an agar-coated plate. A distributed delay explicitly accounts for a virus latent period of variable duration. The model allows the number of virus progeny released when an infected cell lyses to depend on the duration of the latent period. A unique spreading speed for virus infectio...

Parental deoxyribonucleic acid (DNA) molecules of bacteriophage T4 recombine with their progeny in a way which disperses pieces of the parental molecule over large numbers of the progeny DNA molecules. The parental contribution per progeny phage, or DNA molecule, which receives parental label, is about 5 to 7% of the phage DNA molecule (A. W. Kozinski, Virology 13:124, 1961). The fragment is in...

The Thoroughbred has been intensely selected for speed and performance since its development over 300 years ago. The concept of shuttle stallions was introduced in 1990 in order to introduce novel bloodlines in Australia and maintain genetic diversity in the Thoroughbred population. However Thoroughbred racing varies in different racing regions with Australia requiring faster and more precociou...

Estimation of indoor radon concentration and dose evaluation its progeny in selected dwellings Duhok city, Kurdistan Region, Iraq

Abstract Cork oak is an important forest tree species in the Western Mediterranean region due to high economic value of its renewable cork and ecological social services. However, studies regarding genetic variation within populations are scarce, this gap knowledge contributing delay set-up a breeding conservation strategy for species. In study, fitness (survival, height, stem diameter) plant a...

PREMISE Inbreeding depression, or the reduction in fitness of progeny with related parents, has potential to adversely affect long-term viability both wild and captive plant populations. Silphium integrifolium, a prairie native central United States, been identified as candidate for domestication perennial oilseed crop. Little is known about inbreeding depression this species, but it expected b...

Carcass EPDs are becoming common in this era when more economically important traits are being added to national cattle evaluation programs. Traditionally, carcass traits were evaluated solely using progeny tests. One limitation to progeny testing is, of course, cost. Also, for bulls to be evaluated in such a program, he must produce progeny on which carcass data are collected. This is a proces...

Crossbreeding of Holstein–Friesian dairy cows with both early maturing (e.g. Aberdeen Angus (AA)) and late maturing (e.g. Belgian Blue (BB)) beef breeds is commonly practised. In Ireland, genetic merit for growth rate of beef sires is expressed as expected progeny difference for carcass weight (EPDCWT). The objective of this study was to compare the progeny of Holstein–Friesian cows, sired by A...