The main computing methods of the QA system are based on the application of natural language processing (NLP) techniques to infer the logic forms and on the treatment of the logic forms.
However, there is not much published information on the application of natural coagulants for wastewater purification.
After extraction processing, next step is application of natural colorants on textiles with or without the help of mordants.
This investigation were carried out to satisfy the color fastness properties and limited color variety which are presumed as key constrains in application of natural dyes on textile coloration.
Recently, increasing attention has been focused on the application of natural products in cancer chemopreventive therapy.
Therefore, numerous studies have focused on the application of natural products to prevent and to treat cancer [ 6].
Currently, noninvasive techniques such as bioluminescence imaging, which is based on the application of natural reactants with light-emitting capabilities (photoproteins and luciferases), provide valuable information about cardiac cell transplantation in living animals [ 59].
Previous research on the topic proved inconclusive, so researchers at Imperial College London and two other institutions in the United Kingdom studied how three pests--two types of aphid and one species of moth--responded to the application of natural and synthetic fertilizers on cabbage plants.
Recently, Samy et al. [ 54] published an extensive revision on the therapeutic application of natural inhibitors of snake venom PLA2s, covering molecules from the primary metabolism of different organisms, such as glycoproteins (PLIs), peptides, and lipids, as well as from secondary metabolism, exemplified by terpenoids, alkaloids, flavonoids, and other molecules.
This paper first reviews the studies on drug clay interactions, and then those focused on the applications of natural clays and their semi-synthetic or synthetic derivatives to carry out specific functions in new drug delivery systems.
