0000000000464820
AUTHOR
Sally Boyd
showing 2 related works from this author
Unity in Discourse, Diversity in Practice: The One Person One Language Policy in Bilingual Families
2013
When parents with different first languages have a child, and want the child to become bilingual in both languages, many parents adopt the one person – one language (OPOL) strategy. This chapter uses nexus analysis (Scollon R, Scollon SW, Nexus analysis. Discourse and the emerging internet. Routledge, London, 2004) to carry out a discourse analysis of ways in which this strategy is motivated by parents and ways it is enacted in conversations between parents and children, in three Swedish-Finnish bilingual families with 3–4 year old children in Finland. We also look at how the children participate in the negotiation of family language policy. Parents were interviewed about their own language…
Investigation of deltamethrin resistance in salmon lice (Lepeophtheirus salmonis) provides no evidence for roles of mutations in voltage-gated sodium…
2020
BACKGROUND The pyrethroid deltamethrin is used to treat infestations of farmed salmon by parasitic salmon lice, Lepeophtheirus salmonis (Kroyer). However, the efficacy of deltamethrin for salmon delousing is threatened by resistance development. In terrestrial arthropods, knockdown resistance (kdr) mutations of the voltage-gated sodium channel (Nav ), the molecular target for pyrethroids, can cause deltamethrin resistance. A putative kdr mutation of an L. salmonis sodium channel homologue (LsNav 1.3 I936V) has been identified previously. At the same time, deltamethrin resistance of L. salmonis has been shown to be inherited maternally and to be associated with mitochondrial DNA (mtDNA) muta…