To attain native-like competence, second language (L2) learners must establish mappings between familiar speech sounds and new phoneme categories. For example, Spanish learners of English must learn that [d] and [ð], which are allophones of the same phoneme in Spanish, can distinguish meaning in English (i.e., /deɪ/ "day" and /ðeɪ/ "they"). Because adult listeners are less sensitive to allophon...

Once severely rejected, first language (L1) use is no more considered to be inherently detrimental in foreign language pedagogy. Recent research within sociocultural framework has come up with numerous facilitative roles for L1 use (Anton and DiCamilla, 1999; Swain and Lapkin, 2000; Storch and Wigglesworth, 2003). Also, studies from humanistic perspectives that deal with the teachers’ and learn...

The prevailing theory of language switching states that unbalanced bilingual speakers use inhibition to switch between their languages (Inhibitory Control or IC model; Green, 1998). Using fMRI, we examined the brain mechanisms underlying language switching and investigated the role of domain-general inhibition areas such as the right inferior frontal gyrus (rIFG) and the pre-supplementary motor...

Anthrax lethal toxin is a typical A-B type protein toxin secreted by Bacillus anthracis. Lethal factor (LF) is the catalytic A-subunit, a metalloprotease having MEKs as targets. LF relies on the cell-binding B-subunit, protective antigen (PA), to gain entry into the cytosol of target cells. PA binds to cell surface toxin receptors and is activated by furin protease to form an LF-binding-compete...

Background: Diagnosis and management of pre-rupture stage of the pregnant horn are difficult and usually missed on a routine ultrasound scan. Furthermore, most cases are detected after rupture of pregnant horn. Case: We presented a 28-year-oldG2 L1 woman with diagnosis of RHP at 14 weeks of gestation. She was initially diagnosed with a normal intrauterine pregnancy, whereas a pregnancy in a rig...

This study examined the role of the native language (L1) transfer in a non-native language (L2) acquisition of the there-insertion construction at the syntax-semantics interface. Specifically, the study investigated if Mandarin EFL learners would make overgeneralization errors in the situation where an L1 argument structure constitutes a superset of its L2 counterpart. Verbs of existence and ap...