منابع مشابه
Atomic and optical tests of Lorentz symmetry
This article‡ reports on the Fourth Meeting on Lorentz and CPT Symmetry, CPT ’07, held in August 2007 in Bloomington, Indiana, USA. The focus is on recent tests of Lorentz symmetry using atomic and optical physics. Results presented at the meeting include improved bounds on Lorentz violation in the photon sector, and the first bounds on several coefficients in the gravity sector.
متن کاملBootstrap Out of Sample Predictive Evaluation Tests∗
We consider the comparison of multiple (possibly all misspecified) models in terms of their out of sample predictive ability. Typically, candidate models compared contain parameters estimated using recursive (or related rolling) estimation schemes. In some cases, predictive evaluation tests have a limiting distribution which is a functional over a Gaussian process, with a covariance kernel that...
متن کاملStressing Out over tRNA Cleavage
A conserved response to stress involves endonucleolytic cleavage of cytoplasmic transfer RNAs (tRNAs) by ribonucleases that are normally secreted or sequestered. Ribonuclease activation or release is an intriguing new aspect of cellular stress responses, with a potential impact on translation, apoptosis, cancer, and disease progression.
متن کاملJapanese Dietary Habits and the Fall-out Problem. Ii.
As data coming out from Japan on the level of contamination of food by radio-active fall-out from the nuclear weapon tests often differs remark ably from that obtained in other countries, an investigation was made to find the radio-ecological reason for it. We found less contribution of milk to total diet than European and American countries in Japan where various kinds of food of plant origin ...
متن کاملRelating Yield Models to Burn-In Fall-Out in Time
An early-life reliability model is presented that allows wafer test information to be used to predict not only the total number of burn-in failures that occur for a given product, but also the time at which they occur during burn-in testing. The model is a novel extension of an experimentally verified yield-reliability model based on the fact that defects that cause earlylife reliability (burn-...
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: 1985
ISSN: 0028-0836,1476-4687
DOI: 10.1038/318319a0