Parameters resulting in a reasonably low MHD pressure drop and almost no heat leakage from the breeder into the cooling helium flows have been identified.
Beyond corrosion, T-permeation from the breeder into the RAFM-steels is also an important issue and has to be reduced significantly.
The low solubility of hydrogen isotopes in the alloy generates an high partial pressure and, as a consequence, an high tritium permeation rate from the breeder into the He coolant and a considerable tritium inventory in the structural materials.
These commercial lines were of different origin and one of them (line A) was homozygous for the mutation, and had been imported by a private breeder into France.
That also allows farmers to have more economic control of what they are participating in" — bringing them with chefs and breeders into the seed-to-table food chain to help create something new.
For example, she says, biologists could separate fast breeders into one group, essentially creating an artificial bottleneck, and let them reproduce with abandon, without fearing a loss of critical genetic diversity.
Second, the distribution of the F1-selected breeders into spawning batches should be designed using coancestry data, in order to maintain optimal levels of genetic variability in the next generation.
Carbophobia, the most recent in the centurylong series of food fads to wash over the American table, seems to have finally crested, though not before sweeping away entire bakeries and pasta companies in its path, panicking potato breeders into redesigning the spud, crumbling whole doughnut empires and, at least to my way of thinking, ruining an untold number of meals.
When the Tax Reform Act of 1986 closed the tax-sheltering "passive investment" loophole, limiting the use of horse farms as tax shelters, the Arabian market was particularly vulnerable due to over-saturation and artificially inflated prices, and it collapsed, forcing many breeders into bankruptcy and sending many purebred Arabians to slaughter.
As a measure of fitness in the present study, we used data on whether individual wolves have successfully recruited as breeders into the population and test the hypothesis that the inbreeding coefficient (f) is a better predictor of fitness than is multilocus heterozygosity (MLH).
As a measure of fitness in the present study, we used data on whether individual wolves sampled during their first (n = 7), second (n = 36), third (n = 16) or later calendar years (n = 28), have successfully recruited as breeders into the population.
