Ogando, Joseph
For a specific acid or acidity regulator to fulfil its role as a preservative, it needs to be added in highly concentrated form, but acetic acid, for instance, can irritate mucous membranes when its concentration exceeds 3%. Acids and acidity regulators are also used to enhance flavour (...
Chemistry helps to make products for use.Something as simple as toothpaste has at least three chemicals that keep your teeth clean.Other things in your daily life are created by chemistry,such as hair products and soap.Without chemistry,we would never have known that we need ...
EPA's CompTox Chemistry Dashboard (hereafter referred to as the 'Dashboard'), is available publicly at https://comptox.epa.gov/dashboard. The Dashboard is a freely accessible web-based application and data hub integrating data for ~760,000 chemical substances (as of August 2017), most of ...
As such, the pooling of features and reduction of dimensions is likely key to best interpreting EEMs. It is hypothesized that the success of using pooling layers is due to building in dimensionality reduction and reducing the number of nodes in the final fully-connected layer. Model explanations...
as expected from prior information, the antiinfective area being dependent on natural products and their structures. Although combinatorial chemistry techniques have succeeded as methods of optimizing structures and have, in fact, been used in the optimization of many recently approved agents, we are ...
When modified molecular sieve or metal oxide is used as catalyst alone, the catalytic activity is not ideal. It is usually necessary to add a co-catalyst. The supported catalysts are to load the homogeneous catalysts to the surface of the supporting materials. This catalyst combines the double ...
It may therefore be appropriate to use acidic polysaccharide-free and/or tannin-free extracts, which can easily be obtained respectively by precipitation after adding 50% ethanol and/or chromatography on a polyamide 6 or 8 column, using water and methanol as eluents (Cordell et al., 1993). ...
I Lavilla,B Pérez-Cid,C Bendicho - 《Fresenius Journal of Analytical Chemistry》 被引量: 50发表: 1998年 Applications of nuclear analytical methods in the life sciences as exemplified by recent research programs of the IAEA More than 300 research nuclear reactors are presently in operation in ...
THE PRESENT INVENTION REFERS TO PHARMACEUTICAL PREPARATIONS FOR HARDLY SOLUBLE ACTIVE SUBSTANCES, AS WELL AS THE PROCESS FOR THE PREPARATION OF THESE PREPARATIONS. POLYGLYCERIN FATTY ACID ESTERS OR FATTY ACID ESTERS ARE SORBITTED IN COMBINATION WITH AUXILIARY LIPOPHILIC SUBSTANCES AND NON-IONIC SURFACTANTS...