منابع مشابه
Has the sun protection factor had its day?
The concept of the sun protection factor was originally proposed by the Austrian scientist Franz Greiter and subsequently adopted by many regulatory authorities and the cosmetic and pharmaceutical industries. It is popularly interpreted as how much longer skin covered with sunscreen takes to burn compared with unprotected skin. This interpretation can encourage users to prolong their sun exposu...
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THERE are no signs that the debate over the chronological data of Genesis 1 is abating. Among those who hold biblical views of the inspiration of the Scriptures certain interpretations of that chronology have, indeed, long been traditional. These may disagree as to the duration of the "days" of Genesis 1 but they have in common the opinion that the order of narration in that chapter coincides w...
متن کامل“Until the Sun of Science … the true Apollo of Medicine has risen”: Collective Investigation in Britain and America, 1880–1910
Reproduction numbers, defined as averages of the number of people infected by a typical case, play a central role in tracking infectious disease outbreaks. The aim of this paper is to develop methods for estimating reproduction numbers which are simple enough that they could be applied with limited data or in real time during an outbreak. I present a new estimator for the individual reproductio...
متن کاملLessons (Not Yet) Learned
· Despite a significant influx of charitable dollars over the last 10 to 20 years, solutions to complex social problems remain elusive, while philanthropy has been facing growing pressure to account for its tax-free dollars; to demonstrate, replicate, and scale success; and to be transparent about failed social investments. · When foundations and their nonprofit partners ignore a failure and mo...
متن کاملSpace Weapons: Not Yet
In this paper I attempt to sketch the utility of space weaponry, primarily from the point of view of the United States. In this I draw upon the excellent RAND book, “Space Weapons, Earth Wars.” That study was commissioned by LGen Roger DeKok, DCS Plans and Programs, HQ USAF. I am guided also by the views expressed in presentations and discussions of which I am aware over the past year . But the...
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ژورنال
عنوان ژورنال: Critique d’art
سال: 2013
ISSN: 1246-8258,2265-9404
DOI: 10.4000/critiquedart.8222