Age Determination by Long-lived Radionuclides. Recent Developments.
نویسندگان
چکیده
منابع مشابه
Age determination of long - lived reptiles : some techniques for seaturtles ( * )
The time between a seaturtle's entry into the sea and its return to a nesting beach as an adult, the « Lost Year », has been variously estimated, often speculatively so, with very little data. Age estimates have been based frequently on the rapid growth rate of hatcUing turtles raised in captivity, commonly yielding time estimates from hatching to sexual maturity of less than ten years (e.g.. M...
متن کاملPhytoestrogens: recent developments
Phytoestrogens are polyphenolic non-steroidal plant compounds with estrogen like activity exerted through estrogen receptors. These receptors are distributed in several tissues such as male and female reproductive systems, bones, cardiovascular and central nervous systems. These natural phenolic compounds include isoflavonoids, flavonoids, lignans and stilbenes. Isoflavonoids are the most studi...
متن کاملConstraints on the Origin of Chondrules and Cais from Short - Lived and Long - Lived Radionuclides
chondrules and other meteorites. The initial Al/Al ratios of well correlated isocrhons obtained from CAIs distributed mostly between (4-6) ×10 [3]. Other data for individual samples are from [4-16]. CONSTRAINTS ON THE ORIGIN OF CHONDRULES AND CAIS FROM SHORT-LIVED AND LONGLIVED RADIONUCLIDES. N. T. Kita , G. R. Huss, S. Tachibana, Y. Amelin, E. Zinner, L. E. Nyquist, and I. D. Hutcheon, Geologi...
متن کاملPhytoestrogens: recent developments
Phytoestrogens are polyphenolic non-steroidal plant compounds with estrogen like activity exerted through estrogen receptors. These receptors are distributed in several tissues such as male and female reproductive systems, bones, cardiovascular and central nervous systems. These natural phenolic compounds include isoflavonoids, flavonoids, lignans and stilbenes. Isoflavonoids are the most studi...
متن کاملRecent Developments in Discrete Event Systems
This article is a brief exposure of the process approach to a newly emerging area called "discrete event systems" in control theory and summarizes some of the recent developments in this area. Discrete event systems is an area of research that is developing within the interstices of computer, control and communication sciences. The basic direction of research addresses issues in the analysis an...
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: RADIOISOTOPES
سال: 1998
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.47.34