منابع مشابه
FULTON Cooperatives and Member Commitment
Agricultural cooperatives around the world are facing major structural challenges as they respond to a more industrialized agriculture, globalization, and freer trade. Co-ops are responding to these changes by merging, by finding new ways of raising capital, and by developing new organizational forms such as New Generation Co-ops. One of the critically important issues co-ops face as they under...
متن کاملJohn F. Fulton (1899-1960)
A Midsummer Reminiscence In June of 1957 word came to me in Zurich that Dr. Fulton was gravely ill. He had recently arrived in London to celebrate the Harvey Tercen-tenary and was to go on from there to Oxford to receive an honorary degree. He had rallied from critical illnesses before, but this time it seemed that the end had come. I boarded a plane for London. The muffled roar of the all-but-...
متن کاملJohn F. Fulton, Coccidioidomycosis, and Penicillin
When the late Dr. John F. Fulton contracted severe pulmonary coccidioidomycosis in January, 1942, a metastatic lesion posed the threat of further progression and fatal dissemination. The possibility that an untested and generally unavailable antibiotic, penicillin, might be of value in Fulton's illness led his physician, Dr. John Bumstead, to appeal directly to Fulton to obtain this antibiotic,...
متن کامل8 Fulton - MacPherson compactification , cyclohedra , and the polygonal pegs problem
The cyclohedron Wn, known also as the Bott-Taubes polytope, arises both as the polyhedral realization of the poset of all cyclic bracketings of the word x1x2 . . . xn and as an essential part of the Fulton-MacPherson compactification of the configuration space of n distinct, labelled points on the circle S1. The “polygonal pegs problem” asks whether every simple, closed curve in the plane or in...
متن کاملBalanced Normal Cones and Fulton-macpherson’s Intersection Theory
Let X be a subscheme of a reduced scheme Y. Then Y has a flat degeneration to the normal cone CXY of X, and this degeneration plays a key step in Fulton and MacPherson’s “basic construction” in intersection theory. The intersection product has a canonical refinement as a sum over the components of CXY, for X and Y depending on the given intersection problem. The cone CXY is usually not reduced,...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1899
ISSN: 0036-8733
DOI: 10.1038/scientificamerican01211899-37a