On the X-Rays
نویسندگان
چکیده
منابع مشابه
The Effect of X-rays on Glutathione
Hammctt (I), using the qualitative nitroprusside reaation, demonstrated the destruction of glutathione when water solutions were irradiated with p and y rays from radium. Woodward (2) confirmed Hammett’s observations quantitatively with radon, but failed to find any destruction with as high as 15,600 r units of Roentgen rays. She used the accurate titration method of Woodward and Fry (3) for ma...
متن کاملThe Impact of Low Level X-rays on Biosynthesis of Gold Nanoparticles by Actinobacteria
Background; Gold nanoparticles (GNPs) play an important role in medical, health and environmental applications. All kinds of microorganisms were found to be able to synthesize GNPs. The optimization of laboratory conditions for achieving more economical benefits of mass production has been studied widely. Methods;This study assesses the enhancing effect of low-level X-rays on the biosynthesis ...
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The X-ray of a permutation is defined as the sequence of antidiagonal sums in the associated permutation matrix. X-rays of permutation are interesting in the context of Discrete Tomography since many types of integral matrices can be written as linear combinations of permutation matrices. This paper is an invitation to the study of X-rays of permutations from a combinatorial point of view. We p...
متن کاملThe Relative Effects of X-Rays, Gamma Rays and Beta Rays on Chromosomal Breakage in Tradescantia.
OR some time it has been generally considered that the production of F chromosomal aberrations in Tradescantia and many other materials is essentially independent of the wave length of the exciting radiation in the region shorter than 1.5 A. This view has not been seriously questioned in recent years and to date has remained one of the fundamental tenets of radiobiology. A number of isolated in...
متن کاملSubject headings: galaxies: general—galaxies: spiral—X-rays: general—X-rays: galaxies—X-rays: ISM
We present results from the analysis of deep ROSAT HRI and PSPC observations of the spiral galaxy M81. The inferred total (0.5–2 keV band) luminosity of M81 is ∼ 3×10 ergs s, excluding the contribution from identified interlopers found within the D25 ellipse. The nucleus of the galaxy alone accounts for about 65% of this luminosity. The rest is due to 26 other X-ray sources (contributing ∼ 10%)...
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ژورنال
عنوان ژورنال: JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
سال: 1923
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1917.7.124