: Stanfield-Worley Bluff Shelter Excavations . David L. de Jarnette.
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David L
Recent evidence suggests that nearly 25% of U.S. adults (47 million) suffer from some level of sleep deprivation. The impact of this sleep deprivation on the U.S. economy includes direct medical expenses related to sleep deprivation and related disorders, the cost of accidents, and the cost of reduced worker productivity. Sleep research has examined the effects of sleep deprivation on a number ...
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The software industry has existed since the mid-1950s, but until about 1970 very little attention was paid to it, largely because the industry was too small to merit detailed analysis other than as an unquantified sector of the overall computer business. As late as 1970, the annual turnover of all U.S. software firms was less than $1/2 billion – about 3.7 percent per cent of the total computer ...
متن کاملDavid L. Glanzman
that the paying customers make a contribution to the conservation of the species. A recent research paper shows, however, that the process has not led to any successful re-integration of lions into the wild, because captivebred lions and their offspring are ill-suited for survival compared with their wild-born peers (Oryx (2012) doi:10.1017/S0030605312000695). “The simple fact is, ‘lion encount...
متن کاملDavid L Waltz, in Memoriam
tion after completing his dissertation in 1972 at the Massachusetts Institute of Technology Artificial Intelligence Laboratory (MIT AI Lab). That dissertation created the field of constraint propagation by showing that constraints and a rich but simple descriptive system were sufficient to recover threedimensional information from a two-dimensional projection. Besides an education, Dave picked ...
متن کاملA Festschrift for David L. Hawksworth.
A Festschrift for David L. Hawksworth 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 Systematic biology has undergone dramatic development over the last decades. This was chiefly due to the ease of generating DNA sequence data, which dramatically increased with next-gen...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1964
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1964.66.4.02a00560