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Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together. It is water-soluble. Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. They are the most widely occurring nitrogen-containing heterocycles in nature. [1]
Dr. Mary Margaret Albright, Ph.D Dr. Richard "Dick" Solomon: anthropology physics The Adventures of Jimmy Neutron: Tim Curry (voice) Professor Finbarr Calamitous: science The Aquabats! Super Show! / The Aquabats: Parker Jacobs: Professor Monty Corndog: science Bagpuss: Oliver Postgate (voice) Professor Yaffle (Augustus Barclay Yaffle) unknown ...
Purines are biologically synthesized as nucleotides and in particular as ribotides, i.e. bases attached to ribose 5-phosphate.Both adenine and guanine are derived from the nucleotide inosine monophosphate (IMP), which is the first compound in the pathway to have a completely formed purine ring system.
Science in science fiction is the study or of how science is portrayed in works of science fiction, including novels, stories, and films. It covers a large range of topics. Hard science fiction is based on engineering or the "hard" sciences (for example, physics, astronomy, or chemistry).
Boris Karloff in James Whale's 1931 film Frankenstein, based on Mary Shelley's 1818 novel.The monster is created by an unorthodox biology experiment.. Biology appears in fiction, especially but not only in science fiction, both in the shape of real aspects of the science, used as themes or plot devices, and in the form of fictional elements, whether fictional extensions or applications of ...
In 2009, Swanwick posted the stories on a weblog dedicated to the purpose. [5] The theme of each story in the collection is inspired by the element it is named after. The book also includes an afterword by the author, and a foreword by Theodore Gray who was awarded the IgNobel Prize for Chemistry in 2002.
Therefore, pH values on the different scales cannot be compared directly because of differences in the solvated proton ions, such as lyonium ions, which require an insolvent scale that involves the transfer activity coefficient of hydronium/lyonium ion. pH is an example of an acidity function, but others can be defined.
Science fiction studies is the common name for the academic discipline that studies and researches the history, culture, and works of science fiction and, more broadly, speculative fiction. The modern field of science fiction studies is closely related to popular culture studies , a subdiscipline of cultural studies , and film and literature ...