Roleplay: A Tool for Engaging English Language Learners

This article examines the advantages of incorporating roleplay into academic environments, with a specific emphasis on its ability to improve communication and promote the acquisition of vocabulary among students. The study explores the design concerns and assessment methodologies used in roleplay exercises in academic settings, emphasising their efficacy in fostering critical thinking, argumentation skills, and a profound comprehension of course material. The study investigates the impact of roleplay activities on learners\u27 readiness for real-life business interactions, acquisition of negotiation skills, and improvement of professional communication in business environments

Studies on the production of some important secondary metabolites from medicinal plants by plant tissue cultures

Plants are a tremendous source for the discovery of new products of medicinal value for drug development. Today several distinct chemicals derived from plants are important drugs currently used in one or more countries in the world. Many of the drugs sold today are simple synthetic modifications or copies of the naturally obtained substances. The evolving commercial importance of secondary metabolites has in recent years resulted in a great interest in secondary metabolism, particularly in the possibility of altering the production of bioactive plant metabolites by means of tissue culture technology. Plant cell culture technologies were introduced at the end of the 1960's as a possible toot for both studying and producing plant secondary metabolites. Different strategies, using an in vitro system, have been extensively studied to improve the production of plant chemicals. The focus of the present review is the application of tissue culture technology for the production of some important plant pharmaceuticals. Also, we describe the results of in vitro cultures and production of some important secondary metabolites obtained in our laboratory