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Durable block copolymers combining ionic and non-ionic blocks hold a great promise as membrane materials in next-generation fuel cells and batteries. With a proper macromolecular design, these copolymers self-assemble to form ordered nanostructures in which ion and water transport is facilitated over a wide range of conditions. For example, membranes based on sulfonated block copolymers typically
In language acquisition it is important to imitate the native speakers of the language. For the young child it is natural to imitate both the language and the behaviour of the culture. Imitation, or adaptation (Markham 1997), is also useful in second language acquisition to learn how to pronounce the words and to learn the prosody of the language. For most people it is difficult to learn to speak
This paper discuss the issue of ‘Teaching Mathematics and Science in English’ Policy implementation in Malaysia, which requires Mathematics and Science to be taught in an English medium in all primary schools, introduced by the government in May 2002. The needs of increased to overcome the declining standard of English contrasted with Malaysian plural society communal identity and mother tongue la
The language acquisition process is suggested to be a process of selection and cumulative reduction from the language of more experienced (i.e. older) individuals. The population structure ensures that the approximation of the language learner results in a common language that is stable under normal conditions. Language is described as a ‘stasis’ between constructive and eliminative reduction.
