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Protein folding problem: Is it possible to predict the secondary, tertiary and quaternary structure of a polypeptide sequence based solely on the sequence and environmental information? Inverse protein-folding problem: Is it possible to design a polypeptide sequence which will adopt a given structure under certain environmental conditions?
List of unsolved problems may refer to several notable conjectures or open problems in various academic fields: Natural sciences, engineering and medicine [ edit ]
The aforementioned DOE multiscale modeling efforts were hierarchical in nature. The first concurrent multiscale model occurred when Michael Ortiz (Caltech) took the molecular dynamics code Dynamo, developed by Mike Baskes at Sandia National Labs, and with his students embedded it into a finite element code for the first time. [18]
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Generally speaking, chemistry in AOPs could be essentially divided into three parts: [11] Formation of ·OH; Initial attacks on target molecules by ·OH and their breakdown to fragments; Subsequent attacks by ·OH until ultimate mineralization. The mechanism of ·OH production (Part 1) highly depends on the sort of AOP technique that is used.
Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail.
Microscopic here implies that quantum mechanics has to be used to provide an accurate description of the system. Many can be anywhere from three to infinity (in the case of a practically infinite, homogeneous or periodic system, such as a crystal), although three- and four-body systems can be treated by specific means (respectively the Faddeev and Faddeev–Yakubovsky equations) and are thus ...
The 'organic chemistry' problems might be to do with carbon-containing molecules, but many of them will be studied and perhaps eventually solved by people who are not organic chemists. Perhaps it is just me, but I would not call several of these unsolved problems in organic chemistry, which is what I came here looking for. Organic chemistry is ...