منابع مشابه
Purple America
A merica, we are told, is a nation divided. Maps of the electoral votes cast by the states in recent U.S. presidential elections reveal a striking pattern. The base of the Democratic Party is firmly rooted in the northeast and upper Midwest—a region stretching from Maine to Minnesota—plus the Pacific West, anchored by California. The Republicans are said to own an L-shaped region covering the S...
متن کاملHall Jackson and the Purple Foxglove. Medical Practice & Research in Revolutionary America 1760-1820
J. Worth Estes, medical historian and Instructor in Medicine at the Boston University School of Medicine, presents a rather full account of the introduction of the purple foxglove-digitalis-into the medical practice of post-Revolutionary America. The protagonist of his tale is Hall Jackson (1739-1797), a physician of Portsmouth, New Hampshire. Jackson became prominent during the Revolutionary W...
متن کاملEvidence of hybridization between Lythrum salicaria (purple loosestrife) and L. alatum (winged loosestrife) in North America.
BACKGROUND AND AIMS Although Lythrum salicaria (purple loosestrife) was introduced to North America from Europe in the early 1800s, it did not become invasive until the 1930s. Whether hybridization with L. alatum (winged loosestrife) could have played a role in its ultimate spread was tested. METHODS Six diagnostic morphological traits (flower number per axil, leaf placement, calyx pubescence...
متن کاملDetection of Purple Sulfur Bacteria in Purple and Non-purple Dairy Wastewaters.
The presence of purple bacteria in manure storage lagoons is often associated with reduced odors. In this study, our objectives were to determine the occurrence of purple sulfur bacteria (PSB) in seven dairy wastewater lagoons and to identify possible linkages between wastewater properties and purple blooms. Community DNA was extracted from composited wastewater samples, and a conservative 16S ...
متن کاملPurple urine bag syndrome.
A 70 year old lady of recurrent ischaemic stroke on a chronic urinary catheter presented with purple discoloration of her catheter bag. Clinically, she was febrile. The urinary catheter drainage bag (Panel A) was purple stained. Her urine pH was alkaline at 7.5 with leucocytes present. The urine culture grew Klebsiella pneumoniae. She was treated with ampicillin/sulbactam which led to the resol...
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ژورنال
عنوان ژورنال: Journal of Economic Perspectives
سال: 2006
ISSN: 0895-3309
DOI: 10.1257/jep.20.2.97