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The susceptibility of 64 Malassezia Jurfur isolates to Melaleuca alternifolia oil was determined. The minimum inhibitory concentration for 90% of isolates was 0.25% by agar dilution and 0-12% by broth dilution. These data indicate that tea tree oil may be useful in the treatment of skin conditions involving M. furfur.

This paper investigates the extent of second language (L2) use in domains belonging to inner speech. The participants consist of 149 highly educated L2-competent sequential Polish-English bilinguals resident in the UK *. The independent variables include acculturation level, social network profile, length of residence, and predicted future domicile. The study combines both quantitative and qualitative approaches. All participants completed an online questionnaire, and 14 of these were also interviewed by the researcher. Results show that bilinguals who acculturate to a higher level, operate in majority L2-speaking social networks, and intend to remain in the UK indefinitely, use significantly more L2 across domains belonging to inner speech.

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This chapter focuses on the variables predicting L2 attainment in 149 migrants (L1 Polish and L2 English) who relocated to the UK in early adulthood. They are highly educated sequential bilinguals who have been resident in the UK for an average of eight years following migration. Independent variables analysed in this chapter are divided into three categories: 1) post-migration sociolinguistic aspects, namely, acculturation level and frequency of L2 use following migration; 2) possible temporal predictors of the L2 attainment, namely, age of onset, age at migration and length of domicile in the host country; and 3) socio-biographical variables, namely, context of L2 acquisition, education level, age, gender and motivation behind migration. The results showed that acculturation level is strongly linked to L2 attainment.