Chirality as an environmental phenomenon was dealt with in a thorough and interesting manner in a series of three symposia entitled "Modern Chiral Pesticides: Enantioselectivity and Its Consequences," sponsored by the Agrochemical Division of the American Chemical Society and held in Washington, DC (2005), Boston, MA (2007) and San Francisco, CA (2010). All three symposia included speakers from industry, government and academia, representing several European countries, China, and the United States. Corresponding to this broad group of countries, institutions and speakers, the range of topics touched on almost all facets of chirality as it is manifested in environmental and human exposure and toxicity. The 40 oral and 20 poster presentations indeed approached comprehensive coverage: analysis of enantiomers and other stereoisomers; preparative separation of enantiomers; stereoselective occurrences of chiral pesticides in environment soil and water and in wildlife and human tissues and fluids; stereoselective degradation and metabolism of chiral pesticides; and stereoselective toxicity.
This book is a result of manuscript contributions by some of the oral and poster presenters to the third symposium in 2010. In addition to symposium participants, invitations were extended to the environmental chiral chemistry community in general, including most of the speakers in the 2005 and 2007 symposia, in an attempt to attain good coverage of this rather broad topic. Thus, this ACS Symposium book will generate many new ideas from interested readers and inform them of useful techniques for experimental exploration of the somewhat exotic, but important, area of chiral chemistry of pesticides.

This book examines innovation in the fields of computer engineering and networking, and explores important, state-of-the-art developments in areas such as artificial intelligence, machine learning, information analysis and communication. It gathers papers presented at the 8th International Conference on Computer Engineering and Networks (CENet2018), held in Shanghai, China on August 17-19, 2018. * Explores emerging topics in computer engineering and networking, along with their applications * Discusses how to improve productivity by using the latest advanced technologies * Examines innovation in the fields of computer engineering and networking

Weiping Liu contends that the impacts of learning environments on Chinese only children must be studied from a bioecological systems perspective by considering the direct and joint effects of learning environments and personality within the macro-environments of culture, public policy etc. Samples were chosen randomly from the 1980s and 1990s Chinese only children (N=2105) ranging from junior high, senior high and college students in east, middle and west China. With data analyses such as exploratory factor analysis, hierarchical multiple regression analysis, MANOVA and ANOVA, hypotheses formulated on these research purposes were tested to be true, especially, in terms of desirable learning outcomes. The author also provided practical and theoretical discussions.