1. Introduction Honey consumption has grown significantly during the last few decades due to its high nutritional value and unique flavor. The price of natural bee honey…

A short series of lectures prepared for the Fourth year of Geology, Tanta University 2014- 2015 by Hassan Z. Harraz [email protected] This material is intended for use…

1. Introduction Quaternary ammonium compounds (QACs) have the basic structure NR4 + . Those possessing R groups with long alkyl chains are known to be especially effective…

1. Introduction Bisphenol A (BPA), shown in Figure 1, has made headlines over the past few years due to its potential effects on human health. The headlines began with concerns…

1. Introduction Vitamins are essential nutritional elements in a human diet. Though we are able to synthesize certain vitamins, such as Vitamin D when exposed to sunlight,…