Since the isolation of tyrothricin from cultures of Bacillus brevis (Dubos, 1939), numerous papers have appeared dealing with the chemical and biological properties of this bactericidal agent and its components, gramicidin and tyrocidine (Hotchkiss and Dubos, 1940; Dubos and Hotchkiss, 1941; Tishler, Stokes, Trenner and Conn, 1941; Christensen, Edwards and Piersma, 1941; Lipmann, Hotchkiss and ...

W I T H T H E E N A C T M E N T in October of amendments to the Massachusetts law, the main State legislative ac t iv i ty of 1941 affecting unemployment compensation came to an end. D u r i n g the year the legislatures of 4 3 States and the Territories of Alaska and Hawai i , meeting in regular sessions, revised their unemployment compensation laws in some respect, and the United States Congr...

In his book The Dying of Enoch Wallace, Ira Black writes about the devastating consequences of Alzheimer's disease upon a successful Wall Street banker named Enoch Wallace. By describing the symptoms of the disease along with research discoveries in neurobiology, Black paints a picture of the future when neurology and neuroscience will conquer diseases of the brain. Unfortunately, Ira did not l...

Ernest Everett Just [5] was an early twentieth century American experimental embryologist involved in research at the Marine Biological Laboratory [6] (MBL) at Woods Hole [7], Massachusetts, and the Stazione Zoologica [8] in Naples, Italy. Just was known for simple but elegant experiments that supported the ?fertilizing? theory of Frank R. Lillie and served as an antagonist to Jacques Loeb?s wo...

D U R I N G 1941, experience-rating provisions were operative under 17 of the 38 State unemployment compensation laws which provide for modification of employers' contribution rates on the basis of their experience with the risk of unemployment. Modified rates had been in effect in only 4 of these States in the preceding year; during 1942, experience rating will be in operation in 34 States. Pr...

On December 23, 2015, Alfred Goodman Gilman died peacefully at home after a long battle with pancreatic cancer. Though Al was one of the great scientific minds of the past 50 years and is best known for his discovery of guanine nucleotide-binding regulatory proteins (G proteins), anyone who trained or worked closely with Al knew him as much more than that. His greatness extended equally to scie...

volume 120 | number 5 | May 2012 • Environmental Health Perspectives Stephen M. Levin died as a result of cancer on 7 February 2012. He was born to Sam and Sarah Levin of Philadelphia, Pennsylvania, on 16 October 1941. He graduated from Wesleyan University in 1963 and earned his medical degree from New York University School of Medicine in 1967. After completing a surgery internship and a psych...

Stephen Jay Gould [3] studied snail fossils and worked at Harvard University [4] in Cambridge, Massachusetts during the latter half of the twentieth century. He contributed to philosophical, historical, and scientific ideas in paleontology, evolutionary theory, and developmental biology. Gould, with Niles Eldredge, proposed the theory of punctuated equilibrium, a view of evolution [5] by which ...

Agnew, R. P. Some remarks on a paper entitled General Tauberian theorems." Read April 27, 1940. Journal of the London Mathematical Society, vol. 15, no. 4 (Oct., 1940), pp. 242-246. Tauberian conditions. Read Feb. 24, 1940. Annals of Mathematics, (2), vol. 42, no. 1 (Jan., 1941), pp. 293-308. On methods of summability and mass f unctions determined by hyper geometric coefficients. Read Jan. 1, ...