منابع مشابه
Virginia Henderson and her timeless writings.
This paper provides a reflection on the written works of Miss Virginia Avenel Henderson. Miss Henderson is a nurse, a scientist, an artist and a quintessential human being--all traits which informed her written output. Nursing practice, research and education were all subjects of her extensive chronicle. The four-volume Nursing Studies Index is her contribution to nursing research. The Index wa...
متن کاملBeryllium bis(diazaborolyl): old neighbors finally shake hands.
The synthesis of a linear beryllium bis(diazaborolyl) compound featuring the first non-cluster bond between boron and beryllium has been achieved through the reaction of Yamashita's lithium diazaborolide and BeCl2. In accord with the established chemistry of beryllium, the bonding is polar covalent in character, as determined by structural and spectroscopic analysis, as well as reactivity studies.
متن کاملA 39-year-old woman with spots covering her body.
To cite: Cowart D, Cowart KA, Hougeir FG. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2013-201434 DESCRIPTION A 39-year-old African-American woman presented with a 12-year history of ‘itchy dark spots all over my body,’ excluding the face and acral surfaces. The lesions are slightly pruritic at baseline. Flares occur frequently, however, mostly with friction ...
متن کاملInvasive plants versus their new and old neighbors: a mechanism for exotic invasion.
Invading exotic plants are thought to succeed primarily because they have escaped their natural enemies, not because of novel interactions with their new neighbors. However, we find that Centaurea diffusa, a noxious weed in North America, has much stronger negative effects on grass species from North America than on closely related grass species from communities to which Centaurea is native. Ce...
متن کاملTree recruitment and growth on 20-year-old, unreclaimed surface mined lands in West Virginia
Surface mining in West Virginia has disturbed large tracts of forested land. In the 1930s to 1960s, reclamation generally involved replanting of trees on mined sites, but revegetation practices gradually evolved into seeding of forages for erosion control as federal and state laws were enacted in the 1970s. Reforestation of mined lands has recently become an important issue and both federal and...
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ژورنال
عنوان ژورنال: The American Historical Review
سال: 1898
ISSN: 0002-8762
DOI: 10.2307/1834159