orthopedic surgeon who served as the former Vice Chancellor of Sri Ramachandra University, a prominent university in India and Chairman and Director of Orthopedic Care Centre at Ramachandra Medical centre. Dr. Marthandam began his career at a small public health centre in Tirunelveli district in south India and served in the Government General Hospital and Royapettah Government Hospital in Chen...

Hans Spemann [5] was an experimental embryologist best known for his transplantation studies [6] and as the originator of the ?organizer? concept. One of his earliest experiments involved constricting the blastomeres of a fertilized salamander [7] egg [8] with a noose of fine baby hair, resulting in a partially double embryo with two heads and one tail. Spemann continued changing variables such...

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 ...

The open source revolution is having a dramatic impact on the computer industry. Web services based on open source technologies play a major role in the Internet. The Linux® operating system has achieved the dominant position within the embedded controller segment of the telecommunication industry. Recently, open source applications have passed Mac applications in penetration into the PC market...

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...