منابع مشابه
How a prototype argues
In this article, we argue that, just as an edition of a book can be a means of reifying a theory about how books should be edited, so can the creation of an experimental digital prototype be understood as conveying an argument about designing interfaces. Building on this premise, we explore theoretical affinities shared by recent design and book history scholarship, and connect those theories t...
متن کاملOptimizing Income over Feed Supplement Costs
Large fluctuations in milk and supplemental feed prices create anxiety and uncertainties. Profit margin may shrink rapidly when milk price goes down and supplemental feed prices go up. Thus, it is important that correct decisions are made to maximize return on supplemental feed expenses. The change in prices and milk production response to feed supplements are especially important because they ...
متن کاملWest Sweden Asthma Study: Prevalence trends over the last 18 years argues no recent increase in asthma
Asthma prevalence has increased over the last fifty years, but the more recent changes have not been conclusively determined. Studies in children indicate that a plateau in the prevalence of asthma may have been reached, but this has not yet been confirmed in adults. Epidemiological studies have suggested that the prevalence of asthma in adults is approximately 7-10% in different parts of the w...
متن کاملLinear Accelerator Center , Stanford University , Stanford , CA , 94309
At the present time, there are a number of future linear collider designs with a center-of-mass energy of 500 GeV or more that have luminosities in excess of 10 cm 2 s . Many of these designs are very advanced, however, to attain the high luminosity, the colliders require very small beam emittances, strong focusing, and very good stability. In this paper, some of the outstanding issues related ...
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: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/347219a0