The paper discuse the development of self and establishment's descriptions
of chemical periodicals in two decades. It focuses on the new procedures
followed to publish a scientific paper manuscript using the online deposit which
used now in most o
f the publisher's websites, and this in comparison with the
old printing and publishing procedures and techniques. Optical typeset and
electronic communications effects on self description have been discussed with
the effects of economic, financial, environmental and place required for
storage. The number of manuscript copies, which was one of the main
conditions for publishing, has been decreased and the requirements of chemical
materials have been changed. The paper concentrates on the chemical
periodicals which first published between 2003 and 2007.
Our study shows that only 31 % of the world issue the chemical periodicals
/1058/. Out of the 1058, 92 % are issued by the third of these countries (20
countries which is equal to 10 % of the world), in which the number of refereed
periodicals is
higher than the unrefereed ones. The ratio was the same when the
periodicals were categorized by the spoken language.
In this article, a polyester amide was synthesized from oleic acid. This polymer is a biodegradable and thermoplastic polymer, with wide medical and biological applications due to its being compounds with a linear structure. The polymer structure has
been confirmed. Output using spectroscopy methods known as 1H-NMR, and FT-IR spectroscopy. And we obtained this polymer with a good yield (78%).
