Standard fermentations were performed as follows: A spore suspension was inoculated into 3 L of the following medium: sucrose, 3 per cent; corn steep liquor, 1 per cent; molasses, 0.1 per cent; NaCl, 0.05 per cent; and CaCO3, 0.4 per cent. The fermentations were carried out at 27 C in 5-L fermentors (Bartholomew, Karow and Sfat, 1950). After 36 hours, 100 ml of the culture fluid was transferred...

1. By means of the Warburg-Barcroft microrespirometer apparatus and the Warburg direct method, the relative effect of caffeine upon the O(2) consumption of the fertilized egg of Arbacia punctulata was shown for the following concentrations in sea water: 0.002 per cent (M/10,000), 0.004 per cent (M/5,000), 0.02 per cent (M/1,000), 0.1 per cent (M/200), 0.2 per cent (M/100), 0.5 per cent (M/40), ...

for a finite group $g$‎, ‎let $cent(g)$ denote the set of centralizers of single elements of $g$‎. ‎in this note we prove that if $|g|leq frac{3}{2}|cent(g)|$ and $g$ is 2-nilpotent‎, ‎then $gcong s_3‎, ‎d_{10}$ or $s_3times s_3$‎. ‎this result gives a partial and positive answer to a conjecture raised by a‎. ‎r‎. ‎ashrafi [on finite groups with a given number of centralizers‎, ‎algebra‎ ‎collo...

To the Editor – We face, after over two decades of not-so-benign neglect, a serious deficit of alternative-energy (AE)-oriented basic science researchers. Indeed, a major problem in meeting the global energy challenge may well be the paucity of top scientists pursuing AE-related research problems. This deficit has the potential to self-proliferate, because a limited core of experienced research...

To investigate the association between MLH3 Pro844Leu, Thr942Ile polymorphisms and potential linkage with the risk of cervical carcinoma and potential effect on protein function, we carried out a case-control study with 400 cervical squamous cell carcinoma, 400 CIN3 and 1200 normal controls in a Chinese population. The results showed that there was an increased risk of cervical carcinoma and CI...