A BSTRA C T Polyphenol oxidase (EC 1.14.18.1)

Given the significance of English in the global world, English language teaching in Bangladesh has become subject to a supreme concern in maintaining economic growth and developing a skilled workforce. In this article, several barriers have been discussed based on a critical analysis of published materials. This review article covers several key issues such as the status of English in the country; English in education policies; factors affecting the implementation of communicative language teaching curriculum, method, and materials in Bangladesh; validity of the current assessment and its washback effect on English language teaching in Bangladesh; and current situation of teachers' professional development. The article concluded with language policy and planning implications for policymakers, curriculum and material developers, public exams' test-setters, and future English teacher training programmes, keeping the overall development of ELT in Bangladesh in mind.

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A dramatic increase in the second-order nonlinear optical (NLO) response of terpyridine-substituted hexamolybdates has been observed from 886.55 ϫ 10 -30 esu (system 1) to 4622.92 ϫ 10 -30 esu (system 7). The dipole polarizabilities and second-order nonlinear optical (NLO) properties of terpyridine derivatives of hexamolybdates have been investigated by using time-dependent density functional theory (TDDFT). The quantum mechanical design suggests that [Mo 6 O 18 (N 4 C 25 H 14 (CF 3 ) 2 (CN) 2 )] 2-(system 7) is the best

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