second language acquisition (sla) always happens when the learners live and have contact with the native speakers of a second language. although this study investigates learning english by ten native children of farsi, the authors try to simulate the second language acquisition environment. the research deals with the initial state and further development in the child second language learning o...

The papillomavirus capsid is a nonenveloped icosahedral shell formed by the viral major structural protein, L1. It is known that disulfide bonds between neighboring L1 molecules help to stabilize the capsid. However, the kinetics of inter-L1 disulfide bond formation during particle morphogenesis have not previously been examined. We have recently described a system for producing high-titer papi...

This study introduces a method for monitoring a component of serum non-transferrin-bound iron (NTBI), termed "desferrioxamine-chelatable iron" (DCI). It is measured with the probe fluorescein-desferrioxamine (Fl-DFO), whose fluorescence is stoichiometrically quenched by iron. DCI was found in the serum of most patients with thalassemia major (21 of 27 tested, range 1.5-8.6 microM), but only in ...

The B7 family member programmed death-1 ligand (PD-L1) has been shown to play an inhibitory role in the regulation of T cell responses in several organs. However, the role of PD-L1 in regulating tolerance to self-Ags of the small intestine has not been previously addressed. In this study, we investigated the role of PD-L1 in CD8(+) T cell tolerance to an intestinal epithelium-specific Ag using ...

Abstract We investigated bidirectional cross-linguistic influence on motion event (ME) expressions in bilingual speakers of two typological different languages (Talmy’s typology), Spanish (as L1) and English L2). Specifically, we whether struggle to learn ME the L2, this process affects uses L1. Potential effects L2 proficiency AoA both L1 was also studied. elicited from 6-second video-clips we...

The main question addressed in this preliminary study is what traces of L1 have been transferred to L2 use. The focus is on the durational aspects of the tense-lax and quantity contrasts in English and Japanese. The results could be interpreted as support for the hypothesis that an L1 durational pattern rather than a specific phonetic feature is the object of transfer.

This study examined the nature of morphology-based cross language transfer from Korean to reading and writing acquisition in English and Chinese among Korean-speaking 9th graders who had studied English for seven years and Chinese for one year as foreign languages. One hundred and sixty students were administered a set of comparable Korean (L1), English (L2), and Chinese (L3) tasks tapping into...

This paper investigates the speech rhythm of Porteño (Buenos Aires) Spanish (PORTE), which is strongly influenced by Italian due to migration-induced contact, and L2 Peninsular Spanish, produced by Italian natives (SPA L2). It is hypothesized that Italian learners transfer the rhythmic values of their L1 to the target language Spanish and that the data produced by speakers of both the contact v...

Based on observations of the rhythmic structure of L2-speech produced by L1-speakers of Albanian – which suggest the occurrence of transfer – a study is presented here that compares durational aspects between the two languages. In order to do this, speech read by Swedish and Albanian L1-speakers was recorded and investigated, and normalized durational factors were analysed. The results, however...

We compare the F0 output and chunking size of speech units of L1 English, TW L2 English and L1 Mandarin to see what some of the major intrinsic prosodic difference could be, what prosodic features could account for TW L2 English and in what way prosodic transfer occurs. Results show that the fundamental prosodic difference of the two languages is how in the pitch domain English requires sharper...