A review: perinatal-congenital leukemia in twins.
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Biomedical subjects
Publications and source records attributed to C Fields.
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Rats were presented with a series of visual stimuli, each described by shape, size, and position. Cortical recordings were made in medial and lateral positions of rat visual cortex. Average responses were calculated and correlated. This analysis revealed that information regarding size was contained in electrical activity from medial areas, and informtion regarding shape in electrical activity from lateral areas.
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The amino acid (aa) sequences of the polypeptides encoded by five collagen genes of the nematode Caenorhabditis elegans, col-6, col-7 (partial), col-8, col-14, and col-19, were determined. These collagen polypeptides, as well as those encoded by the previously sequenced C. elegans collagen genes col-1 and col-2, share a common organization into five domains: an amino-terminal leader, a short (30-33 aa) (Gly-X-Y)n domain, a non(Gly-X-Y) spacer, a long (127-132 aa) (Gly-X-Y)n domain, and a short carboxyl-terminal domain. The domain organizations and intron positions of these polypeptides were compared with those of the polypeptides encoded by Drosophila and Strongylocentrotus type IV, and vertebrate types I, II, III, IV, and IX collagen genes; the C. elegans collagen polypeptides are most similar to the vertebrate type IX collagens. It is suggested that the collagen gene family comprises two divergent subfamilies, one of which includes the vertebrate interstitial collagen genes, and the other of which includes the invertebrate collagen genes and the vertebrate type IV and type IX collagen genes. Only the vertebrate interstitial collagen genes display clear evidence of evolution via the tandem duplication of a 54-bp exon.
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The health care system in the United States is suffering from a severe shortage of registered nurses. Burn treatment facilities are no exception to this phenomenon. As a result of this shortage, institutions have begun hiring less trained personnel such as licensed practical/vocational nurses (LPNs/LVNs), nursing assistants, burn technicians, and nursing students to fill the void. This shortage is so significant that the American Medical Association (AMA) has proposed a new category of bedside care provider, a "Registered Care Technologist" (RCT). The purpose of this paper is to determine the magnitude of the registered nurse shortage in burn care facilities. A second purpose is to identify factors associated with high turnover rates and to document the reasons why registered burn nurses are leaving their positions.