allotropic modification
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Author(s):  
Andreas J. Kesel

Oxygen exists in two gaseous and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. The first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes, was reported in 2016. Cyclooctaoxygen sodium was synthesized from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. The cationic cyclooctaoxygen sodium complex was shown to bind RNA and DNA, to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1–1.0 mM concentration. We postulated that cyclooctaoxygen is formed in most eukaryotic cells from dihydrogen peroxide in a catalase reaction catalysed by cytidine and RNA. A molecular biological model was deduced for a first epigenetic shell of eukaryotic euchromatin. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic euchromatin. The sperminium phosphate/cyclooctaoxygen sodium complex is calculated to cover the actively transcribed regions (2.6%) of bovine lymphocyte interphase genome. Cyclooctaoxygen seems to be naturally absent in hypoxia-induced highly condensed chromatin, taken as a model for eukaryotic metaphase/anaphase/early telophase mitotic chromatin. We hence propose that the cyclooctaoxygen sodium-bridged spermine phosphate and selenite coverage serves as an epigenetic shell of actively transcribed gene regions in eukaryotic ‘open’ euchromatin DNA. The total herbicide glyphosate (ROUNDUP) and its metabolite (aminomethyl)phosphonic acid (AMPA) are proved to represent ‘epigenetic poisons’, since they both selectively destroy the cyclooctaoxygen sodium complex. This definition is of reason, since the destruction of cyclooctaoxygen is sufficient to bring the protection shield of human euchromatin into collateral epigenetic collapse.



Author(s):  
Andreas J. Kesel ◽  
Eduard A. Struys ◽  
Barbara Cellini

Oxygen exists in two gaseous and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. The first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes, was reported in 2016. Cyclooctaoxygen sodium was synthesized from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. The cationic cyclooctaoxygen sodium complex was shown to bind RNA and DNA, to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1–1.0 mM concentration. We postulated that cyclooctaoxygen is formed in most eukaryotic cells from dihydrogen peroxide in a catalase reaction catalysed by cytidine and RNA. A molecular biological model was deduced for a first epigenetic shell of eukaryotic euchromatin. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic euchromatin. The sperminium phosphate/cyclooctaoxygen sodium complex is calculated to cover the actively transcribed regions (2.6%) of bovine lymphocyte interphase genome. Cyclooctaoxygen seems to be naturally absent in hypoxia-induced highly condensed chromatin, taken as a model for eukaryotic metaphase/anaphase/early telophase mitotic chromatin. We hence propose that the cyclooctaoxygen sodium-bridged spermine phosphate and selenite coverage serves as an epigenetic shell of actively transcribed gene regions in eukaryotic ‘open’ euchromatin DNA. The total herbicide glyphosate (ROUNDUP) and its metabolite (aminomethyl)phosphonic acid (AMPA) are proved to represent ‘epigenetic poisons’, since they both selectively destroy the cyclooctaoxygen sodium complex. This definition is of reason, since the destruction of cyclooctaoxygen is sufficient to bring the protection shield of human euchromatin into collateral epigenetic collapse.



Author(s):  
Andreas J. Kesel ◽  
Eduard A. Struys ◽  
Barbara Cellini

Oxygen exists in two gaseous and six solid allotropic modifications. An additional allotropic modification of oxygen, the cyclooctaoxygen, was predicted to exist in 1990. The first synthesis and characterization of cyclooctaoxygen as its sodium crown complex, isolated in the form of three cytosine nucleoside hydrochloride complexes, was reported in 2016. Cyclooctaoxygen sodium was synthesized from atmospheric oxygen, or catalase effect-generated oxygen, under catalysis of cytosine nucleosides and either ninhydrin or eukaryotic low-molecular weight RNA. The cationic cyclooctaoxygen sodium complex was shown to bind RNA and DNA, to associate with single-stranded DNA and spermine phosphate, and to be essentially non-toxic to cultured mammalian cells at 0.1–1.0 mM concentration. We postulated that cyclooctaoxygen is formed in most eukaryotic cells from dihydrogen peroxide in a catalase reaction catalysed by cytidine and RNA. A molecular biological model was deduced for a first epigenetic shell of eukaryotic euchromatin. This model incorporates an epigenetic explanation for the interactions of the essential micronutrient selenium (as selenite) with eukaryotic euchromatin. The sperminium phosphate/cyclooctaoxygen sodium complex is calculated to cover the actively transcribed regions (2.6%) of bovine lymphocyte interphase genome. Cyclooctaoxygen seems to be naturally absent in hypoxia-induced highly condensed chromatin, taken as a model for eukaryotic metaphase/anaphase/early telophase mitotic chromatin. We hence propose that the cyclooctaoxygen sodium-bridged spermine phosphate and selenite coverage serves as an epigenetic shell of actively transcribed gene regions in eukaryotic ‘open’ euchromatin DNA. The total herbicide glyphosate (ROUNDUP) and its metabolite (aminomethyl)phosphonic acid (AMPA) are proved to represent ‘epigenetic poisons’, since they both selectively destroy the cyclooctaoxygen sodium complex. This definition is of reason, since the destruction of cyclooctaoxygen is sufficient to bring the protection shield of human euchromatin into collateral epigenetic collapse.



2011 ◽  
Vol 383-390 ◽  
pp. 3264-3271
Author(s):  
Singh Siddhartha ◽  
Suveda Aarya ◽  
A.K. Srivastava ◽  
Monika Mishra ◽  
M.A. Wahab

The structural and optical properties of virgin and gamma rays irradiation on aromatic polymers (PET, PES and Kapton) at various doses varying from 16 to 300kGy. The optical and Structural studies have been observed by using UV-VIS Spectroscopy and Powder X- Ray Diffration techniques. The diffraction pattern of virgin samples shows that polymers are semi crystalline in nature. But due to irradiation, the overall crystalline peak intensity and crystallite size is found to be increased with increasing dose. The UV-Visible absorption spectra show the existence of the maximum absorption, their shifting and broadening as a result of gamma irradiation has been discussed. Finally the value of direct and indirect band gap in virgin and gamma irradiated on aromatic polymers has been decreased.



2009 ◽  
Vol 65 (a1) ◽  
pp. s345-s345
Author(s):  
Sergiy Katrych ◽  
Qinfen F. Gu ◽  
Zbigniew Bukowski ◽  
Nikolai D. Zhigadlo ◽  
Gunter Krauss ◽  
...  


1986 ◽  
Vol 17 (25) ◽  
Author(s):  
N. KHACHANI ◽  
M. DEVALETTE ◽  
P. HAGENMULLER


1965 ◽  
Vol 13 (4) ◽  
pp. 441-443 ◽  
Author(s):  
R.H. Johnson


1949 ◽  
Vol 76 (2) ◽  
pp. 301-302 ◽  
Author(s):  
A. W. Lawson ◽  
Ting-Yuan Tang


Author(s):  
Max H. Hey

Cliftonite was described by Sir Lazarus Fletcher in 1887 as ‘a cubic form of graphitic carbon’. He put forward reasons for regarding it as a new allotropic modification of carbon and other reasons suggesting that it is a pseudomorph of graphite after some cubic mineral, perhaps diamond, but did not definitely favour either view. On the evidence available hitherto, both suggestions were clearly possible.



When an alloy or metal undergoes a change in structure or allotropic modification during cooling, heat is evolved and by this means the temperature at which the change takes place can be obtained by well-known experimental methods. These methods are based on the fact that, when an alloy is cooled through a transition point, there is a change in the rate of cooling at that temperature. There are certain distinct types of transformations occurring in solid alloys and they may be classed in the following way: ( a ) transformations occurring at a definite temperature, such as, for example, a phase-change; ( b ) transformations occurring over a range in temperature, such as those due to the deposition of an additional phase from those already existing. During recent years another type of transformation has been shown to exist in pure binary alloys which at all temperatures below their melting points consist of a single homogeneous phase. This type of transformation consists merely of rearrangement of the atoms inside the solid solution. A considerable amount of evidence exists to show that such rearrangement of atoms takes place over a considerable range of temperature irrespective of the cooling rate.



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