In 1956, H.L. Kusnetz proposed a quick method for radon progeny concentration measurement in mine atmosphere using single gross-alpha count of membrane-filtered air. The is still widely used today and based on number impractical assumptions. An instantaneous sampling time (less than ten seconds), one these assumptions that ignores the build-up decay filter paper during period. Of special concer...

Fetal hemoglobin was studied in endogenous colonies produced in plasma clot and methylcellulose cultures of circulating progenitors from patients with polycythemia vera (PV). Analysis of globin chain synthesis showed that gamma chains constituted from 13% to 42% of the non-alpha chains produced in cultured cells, whereas from 27% to over 50% of the endogenous colonies contained Hb F, as indicat...

Mixed infection of monkey kidney cells with two mutants of the LSc2ab strain of poliovirus, one resistant to guanidine and the other resistant to both dextran sulfate and 2-(alpha-hydroxybenzyl)-benzimidazole (HBB), yielded progeny in which the number of gua(r)dex(r) particles exceeded by a factor of 7 to 10 the expected number of similar particles occurring through spontaneous mutation; recomb...

The objective of this study was to investigate the effect genetic merit national Irish maternal index and genotype (i.e. beef vs. × dairy [BDX]) cows subsequent performance their progeny. With exception that high produced 0.57 kg more milk tended have 0.04 a lower body condition score (BCS), no significant differences were observed between diverse merit. Differences contrasting cow apparent. Be...

BACKGROUND Maternal effects on progeny traits are common and these can profoundly alter progeny life history. Maternal effects can be adaptive, representing attempts to appropriately match offspring phenotype to the expected environment and are often mediated via trade-offs between progeny number and quality. Here we have investigated the effect of maternal food availability on progeny life his...

In order to make use of analysis and low noise design techniques one requires a knowledge of the noise performance of circuit elements, circuits and complete systems in order to determine whether they meet the specifications or not. Also to judge the effort of noise decreasing procedures in circuits one need to be able to measure the noise level. If high precision noise measurement is required ...

Mouse gut intraepithelial lymphocytes (IEL) consist mainly (90%) of two populations of CD8+ T cells. One bears heterodimeric alpha/beta CD8 chains (Lyt-2+, Lyt-3+), a T cell receptor (TCR) made of alpha/beta chains, and is Thy-1+; it represents the progeny of T blasts elicited in Peyer's patches by antigenic stimulation. The other bears homodimeric alpha/alpha CD8+ chains, contains no beta chai...