منابع مشابه
Magnetotelluric Studies of Active Continent–Continent Collisions
Continent–continent collisions are an important tectonic process and have played a fundamental role in the evolution of the modern continents. A combination of geological and geophysical data has provided new constraints on the structure and temporal evolution of these orogens. Magnetotelluric (MT) studies have been an important part of these studies since they can constrain the fluid content a...
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The concept of a continent stoma is an attractive one. This has been achieved with varying success for ileostomies made with a Koch pouch but not for colostomies. Permanent ileostomies, and to a proportionally lesser extent colostomies also, are becoming increasingly rare following increased expertise in sphincter saving operations, mucosal proctectomy and the success of the Jand W-ileoanal pou...
متن کاملMeasuring the invisible.
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متن کاملThe invisible faculty.
I had departed the medical school much too late to reach this small Georgia town before dark. Most of the 175-mile drive south was in daylight on interstate highways, but traveling the final 57 miles after nightfall on unfamiliar secondary roads was a challenge to my sense of direction. I arrived safely at my motel at nearly 9:30 p.m., fatigued from a long day of clinical work and meetings and ...
متن کاملModeling the invisible college
This paper addresses the invisible college concept with the intent of developing a consensus regarding its definition. Emphasis is placed on the term as it was defined and used in Derek de Solla Price’s (1963; 1986) work and reviewed on the basis of its thematic progress in past research over the years. Special attention is given to Lievrouw’s (1990) article concerning the structure versus soci...
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ژورنال
عنوان ژورنال: Nature
سال: 2007
ISSN: 0028-0836,1476-4687
DOI: 10.1038/449408a