How many lived to maturity?
نویسندگان
چکیده
منابع مشابه
How many old people have ever lived?
BACKGROUND Uninformed generalizations about how many elderly people have ever lived, based on a poor understanding of demography, are found in a surprising number of important publications. OBJECTIVE We extend the methodology applied to the controversial question “how many people have ever been born?” initiated by Fucks, Winkler, and Keyfitz, to the proportion of people who have ever reached a ...
متن کاملHow many mistakes, how to find them.
The topic of quality control often evokes prolific discussion among those whose business is its administration. Reliable methods for identifying mistakes must be developed in both the manufacture and use of test devices. Unit test devices are uncomplicated to run and provide quick results in a world where speed and simplicity are paramount, yet their very nature as individual assay units introd...
متن کاملHow many patients? How many doctors?
O ne of the fastest growing fields in medicine is the care of adults with congenital heart disease (adult CHD or ACHD). This is mainly a consequence of much longer survival due to advances in pediatric cardiology, interven-tional catheterization, cardiac surgery, and intensive care. Fifty years ago we could diagnose most forms of moderate and severe CHD, but some anomalies were untreatable and ...
متن کاملHow Many Pixels to Watermark?
Watermark design and detection have been studied as two separate problems so far. However, we show that, if the watermarking algorithm is based on the watermark detection method, then significant gains can be achieved. With a watermark detector based on a sequential hypothesis test rather than a fixed sample size test, the number of watermark pixels can be reduced almost by a factor of two for ...
متن کاملHow to Elicit Many Probabilities
In building Bayesian belief networks, the elic itation of all probabilities required can be a major obstacle. We learned the extent of this often-cited observation in the construc tion of the probabilistic part of a complex influence diagram in the field of cancer treat ment. Based upon our negative experiences with existing methods, we designed a new method for probability elicitation from ...
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: Finnish Yearbook of Population Research
سال: 1993
ISSN: 1796-6191,1796-6183
DOI: 10.23979/fypr.44867