In this article, we present a summary of recent research linking speech perception in infancy to later language development, as well as a new empirical study examining that linkage. Infant phonetic discrimination is initially language universal, but a decline in phonetic discrimination occurs for nonnative phonemes by the end of the 1st year. Exploiting this transition in phonetic perception be...

Incorrect folding of proteins in living cells may lead to malfunctioning of the cell machinery. To prevent such cellular disasters from happening, all cells contain molecular chaperones that assist nonnative proteins in folding into the correct native structure. One of the most studied chaperone complexes is the GroEL-GroES complex. The GroEL part has a "double-barrel" structure, which consists...

language teachers usually face issues regarding the most effective methods of teaching. teaching language to nonnative speakers of english involves certain problems and challenges at all levels of instruction. due to the unsatisfactory results of focus on forms and focus on meaning instructions and their inevitable inadequacies, focus on form instruction along with its multiple techniques are r...

Understanding the mechanisms by which nonnative species successfully invade new regions and the consequences for native fauna is a pressing ecological issue, and one for which niche theory can play an important role. In this paper, we quantify a comprehensive suite of morphological, behavioral, physiological, trophic, and life-history traits for the entire fish species pool in the Colorado Rive...

Germ line variants at chromosome 8q24 have been associated with prostate, colorectal, and breast cancer risk (1-7). This region is also frequently amplified in many tumor types (8, 9) including endometrial cancer (10-13). The involvement of germ line and somatic variations at 8q24 suggests a common biological mechanism in the pathogenesis of epithelial cancers. In the present analysis, we used ...

We describe the methodologies for collecting and annotating a Latin-American Spanish speech database. The database includes recordings by native and nonnative speakers. The nonnative recordings are annotated with ratings of pronunciation quality and detailed phonetic transcriptions. We use the annotated database to investigate rater reliability, the e ect of each phone on overall perceived nonn...

Escalating demands for water have led to substantial modifications of river systems in arid regions, which coupled with the widespread invasion of nonnative organisms, have increased the vulnerability of native aquatic species to extirpation. Whereas a number of studies have evaluated the role of modified flow regimes and nonnative species on native aquatic assemblages, few have been conducted ...

this study was an attempt to investigate iranian and spanish intermediate nonnative english learners’ request strategies to their faculty. to this aim, 74 (50 iranian and 24 spanish) nonnative english intermediate learners participated in this study. a discourse completion test (dct) was used to elicit the request strategies used by the participants. the findings suggested the participants empl...