نتایج جستجو برای: background concentrations
تعداد نتایج: 1108431 فیلتر نتایج به سال:
I enjoy designing and constructing systems that achieve robustness by adapting to changing constraints. My recent focus has been in decentralized systems, including mechanisms for expressing and enforcing security relationships among mutually distrustful administrative domains, securely deploying mobile agents, and the efficient dissemination of on-line content. My hope is that this work will f...
It is tempting to assume that a gradual accumulation of damage 'causes' an organism to age, but other biological processes present during the lifespan, whether 'programmed' or 'hijacked', could control the type and speed of aging. Theories of aging have classically focused on changes at the genomic level; however, individuals with similar genetic backgrounds can age very differently. Epigenetic...
A national radon survey is still lacking for Greece. Some groups have carried out several more or less local or extended radon surveys and valuable experience has been gained. After the first preliminary survey carried out by our group, where 500 Kodak LR-115 etched track detectors were placed in Greek schools and dwellings for one year, indoor radon measurements were continued by placing the s...
The calculations of Guang-Wen Ma’s recent Letter [Phys.Lett. A239, (1998) 209] contain an easily detectable error which makes his conclusions irrelevant. ∗E-mail: [email protected]
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