David Kramer’s article on nuclear developments in my native Canada (Physics Today, January 2021, page 23) was an enjoyable read. However, his assertion that the Zero Energy Experimental Pile (ZEEP) world’s second operating reactor after Enrico Fermi’s Chicago Pile-1 (CP-1) is erroneous; at least nine other stateside piles achieved criticality before ZEEP did so September 1945.Those US were CP-2...

Following the discvery of streptomycn by Waksman (1944) and his collagues, great hopes were entertained that its use in cases of tuberculosis, and especiy of tuberculous meningts, would be followed by results equally dramatic and good as those with penicillin in pyogenic infection in general and the pyogenic meningitides in paticular. These hopes were engendered by the excellent experimental re...

my suggestion she was treated with nicotinic acid, which resulted in complete restoration of her sight. In March 1944 Hollis and' Baty (New England) reported a case of a 6 weeks' old child treated with sulphathiazole for meningitis due to the colon bacillus. The drug sterilized the cerebro-spinal fluid in a week but left the child totally blind. The report of Hollis and Baty's case reached me b...

We prove that S4 is complete with respect to Boolean combinations of countable unions of convex subsets of the real line, thus strengthening a 1944 result of McKinsey and Tarski (Ann. of Math. (2) 45 (1944) 141). We also prove that the same result holds for the bimodal system S4 + S5 + C, which is a strengthening of a 1999 result of Shehtman (J. Appl. Non-Classical Logics 9 (1999) 369). © 2004 ...

ANOPHELES letifer Sandosham 1944, a member of the Anopheles 'umbrosus' group was first recognised by Gater (1935) who described it as A. umbrosus, Later he re-described it in 1941 giving it the name A. letifer. His manuscript apparently was lost in transit during the 1939 1945 war, and Sandosham (1944) assuming that publication had taken place described the species ascribing it to Gater. As San...

Drawing on literature in China studies, strategic theory, and expert interviews, this article analyzes the possibility of "rare earths" being leveraged by the People's Republic of China (PRC) in a crisis. The evidence suggests China's position in the rare earths market could constitute a significant security liability for the United States. It also seems that even if coercion fails to materiali...

2 Stern, C., Zeit. f. i. Abst. u. Vererb., 52, 373 (1929). 3 Bridges, C. B., Ibid., 60, 207 (1932). 4 Schultz, J., and Bridges, C. B., Amer. Nat., 66, 323 (1932). 6 Beadle, G. W., andcEphrussi, Boris, Proc. Nat. Acad. Sci., 22, 536 (1936). 6 Beadle, G. W., Physiol. Rev., 25, 643 (1945). 7 Beadle, G. W., and Coonradt, V. L., Genetics, 29, 291 (1944). 8 Beadle, G. W., and Tatum, E. L., Amer. Jour...

reports on the treatment of meningitis with penicillin, with sulphonamides, and with sulphouamides and anti-meningococcal serum. The following are some recent publications on the subject. Dawson and Hobby (1944) reported on the Use of penicillin in 100 cases out of which only 2 were of meningococcal meningitis. In one case the response was satisfactory; in the other Penicillin was not given int...

ment of the arms and sensory impairment as well. Minchin also noted affection of the bladder. Ruge and his co-workers (1925) and Ranjan (1944) described incontinence of urine and faeces as well as sexual impairment. It has been postulated that the disease is never progressive after a few days or weeks beyond the initial paralysis (Bicknell and Prescott, 1942). Ranjan (1944), however, notes rapi...

The P wave of the electrocardiogram has been investigated in great detail in normal subjects (Shipley and Hallaran, 1936; Graybiel et al., 1944; Stewart and Manning, 1944; Thomas and Dejong, 1954) and in various types of cardiac disease (Wood and Selzer, 1939; Thomas and Dejong, 1954; Martins de Oliveira and Zimmerman, 1959). There have been few studies of the P wave in hypertension, however, a...