منابع مشابه
fancy ∗
1 The s-wave repulsion and deeply bound pionic atoms: fact and fancy * Fits to a large data set of pionic atoms show that the 'missing' s-wave repulsion is accounted for when a density dependence suggested recently by Weise is included in the isovector term of the s-wave pion optical potential. The importance of using large data sets is demonstrated and the role of deeply bound pionic atom stat...
متن کاملFlights of Fancy
This reprint is provided for personal and noncommercial use. For any other use, please send a request Brian Hayes by electronic mail to [email protected].
متن کاملArteriosclerosis: facts and fancy.
Arterial vascular diseases comprise the leading cause of death in the industrialized world. Every physician learns about the pathology of these diseases in medical school. All pathologists evaluate arterial disease in surgical pathology and/or autopsy specimens. All clinicians encounter patients with clinical manifestations of these diseases. With such a common and clinically-important group of...
متن کاملHematophagous Endeavors, Fact and Fancy
L start with some facts. The word "mosquito" is Spanish for “little fly.” The single family Culicidae comprises more than 3,500 species of mosquitoes, and these ectoparasites are found in a wide range of environments spanning the globe with the exception of Antarctica. The life span of adult mosquitoes ranges from 2 weeks to 6 months. Mosquitoes belonging to about three quarters of recognized s...
متن کاملThe Hazards of Fancy Backtracking
There has been some recent interest in intelligent backtracking procedures that can return to the source of a dif&ulty without erasing the intermediate work. In this paper, we show that for some problems it can be counterproductive to do this, and in fact that such “inteIIigence” can cause an exponentkd increase in the size of the ultimate search space. We discuss the reason for this phenomenon...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1982
ISSN: 0028-0836,1476-4687
DOI: 10.1038/298113b0