Insufficient intake of dairy products is a nutritional problem of concern in China. However, the knowledge, attitude, and practice of consuming dairy products in the Chinese population remain unknown. A total of 1739 subjects from eight cities in China participated in this study. A questionnaire was used to measure knowledge of and attitude toward dairy. A semi-food intake frequency questionnai...

Part of software maintenance consists in applying program transformations system-wide. In a number of recent papers, a factory approach has been advocated in which one program after another is fed to an assembly line that consists of a sequence of transformation tools. The general feeling seems to be that such factories have to be constructed and operated by specialists (the ‘vendors’). We thin...

BACKGROUND The yeast Saccharomyces cerevisiae is increasingly used as a cell factory. However, cell factory construction time is a major obstacle towards using yeast for bio-production. Hence, tools to speed up cell factory construction are desirable. RESULTS In this study, we have developed a new Cas9/dCas9 based system, SWITCH, which allows Saccharomyces cerevisiae strains to iteratively al...

1 Intent • Create families of related objects without specifying subclass names Applicability • When clients cannot anticipate groups of classes to instantiate Structure Abstract Factory GoF Object Creational Abstract Factory example in C++