Present State of Bio-PIXE.
نویسندگان
چکیده
منابع مشابه
Werner Brandt legacy to PIXE: Past and present perspectives
Inner-shell ionization cross sections used in Particle-Induced X-ray Elemental (PIXE) analyses are routinely calculated in the ECPSSR [W. Brandt, G. Lapicki, Phys. Rev. A 23 (1981) 1717–1729] theory and/ or semiempirical formulas scaled to that theory. Thirty years after the passing of Werner Brandt, with recognition of his seminal contributions to other research on positron physics and stoppin...
متن کاملMicro-PIXE in Ecophysiology
Two selected examples of PIXE microanalysis in ecophysiology have been shown. Studies of heavy metal distribution in mycorrhizal and nonmycorrhizal roots of Plantago lanceolata showed different mechanisms in filtering of Zn/Pb and Fe/Mn, both enabling plants to cope with metals present in the environment. Studies of the mechanism used by the beetle Chrysolina pardalina to eliminate excessive am...
متن کاملBio-Molecular Computing of Finite-State Machine
We overview a series of our research on implementing finite automata in vitro and in vivo in the framework of DNA-based computing [2, 3]. First, we employ the lengthencoding technique proposed and presented in [5, 4] to implement finite automata in test tube. In the length-encoding method, the states and state transition functions of a target finite automaton are effectively encoded into DNA se...
متن کاملCeres : Evolution and Present State
Introduction: We consider Ceres as a prototype for planetary evolution [1]. From thermal modeling by McCord and Sotin [2, 3, 4], Ceres was inferred to have differentiated into a rocky core of hydrated silicates, and an icy outer shell. Thomas et al. [5] confirmed such a model from direct observation of Ceres’s shape from Hubble Space Telescope observations, and pervious occultation measurements...
متن کاملCation-ratio Dating of Petroglyphs Using Pixe
A central problem in archaeological research has been the chronometric dating of petroglyphs (rock engravings). Recent improvements in the understanding of the chemistry of rock varnish (or patina) that develops on rock surfaces in arid regions has resulted in the development of a calibrated dating technique, cation-ratio (CR) dating. This is based on calibrating chemical changes in minor and m...
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: 1993
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.42.10_579