روسیا القیصریة والقضیة الأرمنیة إبان الحقبة الحمیدیة 1897 -1908

Leon Chesley (1908-2000)

Leon Chesley studied hypertension, or high blood pressure, in pregnant women during the mid-twentieth century. Chesley studied preeclampsia and eclampsia, two hypertensive disorders found in approximately five percent of all US pregnancies. In New Jersey and New York, Chesley devoted over forty years to researching preeclampsia and eclampsia, and conducted several long-term studies using the sa...

1908 Scheme I + - CHOC

A synthetic strategy for the preparation of the quinone antibiotic naphthyridinomycin is outlined. An efficient synthesis of key tricyclic intermediate 6 is described. Naphthyridinomycin (I) is an architecturally interesting broad spectrum antibiotic produced by Streptomyces lusitanus. 9 1 2 The structure elucidation of 1 in I974ia,b revealed its unique hexacyclic structure which shared a quino...

Practical Medicine, Series 1908

Austin Bradford Hill (1897-1991)

During the twentieth century, Austin Bradford Hill researched diseases and their causes in England and developed the Bradford Hill criteria, which comprise the minimal requirements that must be met for a causal relationship to be established between a factor and a disease. Hill also suggested that researchers should randomize clinical trials to evaluate the effects of a drug or treatment by mon...

Charles Robert Harington, 1897-1972.

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