منابع مشابه
It Was Heaven: An Interview with Evelyn Witkin
Evelyn Witkin came of age at the dawn of bacterial genetics. In 1941 and with World War II looming, she began her PhD studies at Columbia University, and soon, with her very first experiment, she serendipitously cracked open a new field of research by discovering bacteria resistant to ultraviolet (UV) light. Witkin’s journey from UV resistance to DNA mutagenesis and repair spanned 50 years, tak...
متن کاملFirst there was hydrogen.
The history of hydrogen — the element that fills the world as we know it — consists of a most dramatic set of events. Hydrogen and helium atoms emerged a measly 379,000 years after the Big Bang. As the hot, dense plasma of protons, electrons and photons that was the universe began to cool and expand, electrons and protons gathered to form atoms. Four hundred million years later stars — such as ...
متن کاملWas Civil War Surgery Effective?
During the U. S. Civil War (1861-65) surgeons performed a vast number of surgical procedures. The efficacy of surgery has been continually debated since the war began, in part because of lack of evidence for the (in)effectiveness of surgery. I analyze data gathered by Dr. Edmund Andrews, a surgeon with the 1st Illinois Light Artillery. The data can be arranged as observational data on surgery a...
متن کاملDaddy was there!
He had an additional reason to be inconsolable. What 5 year old would be happy without anything to eat and nothing on the horizon to correct this deficit? Not even the nurse could solve this problem. Armed with two drinks, the oral premedication and apple juice to wash it down, she tried to help gain some control by offering what had been withheld to this point. This smart little boy, however, ...
متن کاملIn the Beginning, Middle, and End There Was a Garden: Bahram Sadeqi’s Malakut
It seems impossible to think of the Persian art without mentioning the significant presence of gardens. They are present in miniature painting, architecture, and literature. One of the modern works of Persian fiction in which gardens play a significant role is Malakut (1961), a novella by the modern Iranian fiction writer Bahram Sadeqi (1936-1984). The story of this novella begins in a “green g...
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ژورنال
عنوان ژورنال: The Expository Times
سال: 1918
ISSN: 0014-5246,1745-5308
DOI: 10.1177/001452461803000202