Conventional wisdom holds that the ovary and testis are terminally differentiated organs in adult mammals. However, Uhlenhaut et al. (2009) now report that deletion of a single gene, Foxl2, is sufficient to induce transdifferentiation of ovary into testis in adult mice, suggesting that testicular development is actively repressed throughout the life of females.

l2 learners’ individual differences are crucial factors that deserve attention in l2 education. focusing on 2 main areas of individual differences (i.e., field (in)dependence and multiple intelligences), this study explored their relationships with l2 reading performance. participants were 64 tefl undergraduates and postgraduates. to assess the participats’ degree of field (in)dependence and mu...

l2 research has shown that instruction in l2 pragmatics is necessary. the current study evaluated the impact of explicit instruction on efl learner's awareness and production of three speech acts of request, apology, and complaint. it also probed whether learners’ language proficiency plays any role in incorporating pragmatic instruction into the l2 classroom. iranian undergraduate student...

Under normal circumstances, acquiring a first language, compared to acquiring a second or third language, seems to come naturally and successfully. This natural process of first language acquisition (henceforth L1A) appears to be illogical. This is because what first language learners (henceforth L1ers) attain (i.e. a grammar of adult native speakers of a given language) goes beyond the positiv...

Fluency in a second language (L2) involves a quintessentially cognitive processing system that operates quickly and effectively. The perceived importance of researching fluency through a psycholinguistic lens has motivated the related L2 research to resort to current cognitive speaking-specific models. This study, drawing on Levelt’s (1999a) psycholinguistic model, probed the deficiency sources...

یکی از دلایل اصلی بروز خطا در ساخت بند موصولی سوی زبان آموزان فارسی که مشغول یادگیری آلمانی هستند، استفاده ضمیر برای عنوان می شود با هسته به لحاظ جنس دستوری و شمار مطابقه دارد. مقابل، تنها حرف ربط «که» بهره برد ارتباط نحوی یا معنایی ندارد. دیگر، راهبردهایی هر دو مورد قرار گیرند نیز کاملا متفاوت اند. بر اساس فرضیه پژوهش حاضر، نظر رسد بیشترین خطاها بخش رخ دهند: یک سو، انتخاب نادرست روبرو هستیم. ع...

This article had two aims: to provide a thorough review of the existing literature examining overall degree of foreign accent in a second language (L2), and to present a new foreign accent experiment. The literature review suggested that a wide variety of variables in#uence degree of foreign accent. These variables include age of L2 learning, length of residence in an L2-speaking country, gende...

The carbohydrate epitope L2/HNK-1 (hereafter designated L2) is expressed in the adult mouse by myelinating Schwann cells of ventral roots and muscle nerves, but rarely by those of dorsal roots or cutaneous nerves. Since substrate-coated L2 glycolipids promote outgrowth of cultured motor but not sensory neurons, L2 may thus influence the preferential reinnervation of muscle nerves by regeneratin...

Teachers can influence the complex process of learning in education, in general, and in second/foreign language (L2) learning in particular. In this light, understanding the factors influencing teachers’ pedagogical success can help L2 teachers achieve more effective teaching. This study then investigated the role of spiritual intelligence (SI) in L2 teachers’ pedagogical success. In so doing, ...

syntax trees are represented as Prolog terms but at the same time with an acceptable concrete appearance. A defining interpreter consists of the following predicates. program(program, final-storage) statement(statement, storage-before, storage-after) expression(expression, storage, integer) condition(condition, storage, ftrue, falseg) Some of the rules of this interpreter are shown in the follo...