Acquisition Transfer Research Articles

Molecular Characterization of Multidrug-Resistant Shigella flexneri.

Due to their propensity for causing diarrheal illnesses and their rising susceptibility to antimicrobials, Shigella infections constitute a serious threat to global public health. This extensive study explores the frequency, antibiotic resistance, genetic evolution, and effects of Shigella infections on vulnerable groups. The research covers a wide range of geographical areas and sheds information on how the prevalence of Shigella species is evolving.Shigella strain antimicrobial resistance patterns are thoroughly examined. Multidrug resistance (MDR) has been found to often occur in investigations, especially when older antimicrobials are used. The improper use of antibiotics in China is blamed for the quick emergence of resistance, and variations in resistance rates have been seen across different geographical areas. Shigella strains' genetic makeup can be used to identify emerging trends and horizontal gene transfer's acquisition of resistance genes. Notably, S. sonnei exhibits the capacity to obtain resistance genes from nearby bacteria, increasing its capacity for infection. The study also emphasizes the difficulties in accurately serotyping Shigella strains due to inconsistencies between molecular and conventional serology. These results highlight the necessity of reliable diagnostic methods for monitoring Shigella infections. In conclusion, this study emphasizes how dynamic Shigella infections are, with varying patterns of occurrence, changing resistance landscapes, and genetic adaptability. In addition to tackling the rising problem of antibiotic resistance in Shigella infections, these findings are essential for guiding efforts for disease surveillance, prevention, and treatment.

L1 Transfer in the Acquisition of Word Order in the Adjective-Added Korean Classifier Phrases by L1-Chinese and L1-Russian Children

This study explored first language (L1) transfer in child second language (L2) acquisition, testing whether L1-Chinese children learning L2 Korean show an advantage over L1-Russian children in the acquisition of adjective-added Korean classifier phrases. Chinese, like Korean, has classifier phrases with similar word orders, while Russian does not. L1-Chinese (n = 18) and L1-Russian (n = 27) children (age = 11-12 years) with L2 Korean completed an acceptability judgment task (AJT) designed to explore grammaticality in the orderings of Korean classifier phrases. The L1-Chinese children also completed a Chinese-version AJT, a translation equivalent to the Korean AJT. The study resulted in two main findings. First, in the Korean AJT, the L1-Chinese children showed more target-like performance than proficiency-matching L1-Russian children. Second, the L1-Chinese children showed comparable ratings between the Korean AJT and the Chinese AJT. The results suggest that L1 transfer takes place during child L2 acquisition, countering claims of a limited role of L1 transfer in child L2 acquisition.

Analysis of The Negative Transfer in Chinese Middle School Students Acquisition of English in Lexical Aspect

This paper mainly analyzes the negative transfer issues that Chinese middle school students generally have in their acquisition of English regarding lexical aspect. Data of the research is collected from the designed exercise completed by three middle school students with different English proficiency levels. Concerning all the lexical transfer errors that the students make, collocation and derivation are the two most common types. Regarding collocation, this paper argues that an English word with multiple Chinese equivalents leads to the use of wrong collocations in English. Regarding derivation, this paper finds that the changeable word form of different parts of speech in English causes the wrong use of the word form. In addition, several suggestions are offered to improve the negative transfer in the acquisition of English, which are using English-English dictionary, focusing on the language input, and making contrastive analysis.

The L3 acquisition of English tense-aspect system by Uygur speakers with L2 Mandarin Chinese

This paper examines the role of Lexical Aspect Hypothesis (LAH) and linguistic typological similarity in the L3 acquisition of English tense and aspect among Uygur speakers with L2 Mandarin Chinese (Chinese hereafter). LAH asserts that the emerging verbal inflections at the early stage of language acquisition primarily function as markers of the lexical aspect and thus predicts universality for acquisition of tense and aspect. However, with an assumption of language transfer, the typological closer relationship of Uygur with English in terms of the tense and aspect system was expected to trigger L1 transfer in L3 acquisition. The study analyzed the English tense and aspect forms used by the participants (N = 25) for verbs of four distinct lexical aspects (50 target items) in contexts of past. The result shows that the lexical aspect influences the appropriate use of past tense—past tense marker aligned with telic predicates (achievements and accomplishments), -ing with activities (for inappropriate uses), and nonpast with states (for inappropriate uses), and the influence is observed at each proficiency level. The results show little evidence for language transfer in the acquisition of the English past tense, either from L1 Uygur or L2 Chinese; instead, the data suggest that L3 acquisition of tense and aspect is more subject to acquisitional universality (LAH).

A Cross-Sectional Study on the Roles of Lexical Aspect and L1 Transfer in Tense-Aspect Acquisition

This study aims to investigate the acquisition of English verb morphology by learners of two typologically different L1s and the role of L1 transfer in the acquisition pattern, a cross-sectional study (n = 180) carried with Chinese and Mongolian college students learning English at two proficiency levels, using the cloze passage and composition. 120 cloze passages and 20 compositions were selected as data to be analyzed. Consistent with the Aspect Hypothesis, the results of MANOVA tests show a significant effect of lexical aspect on tense-aspect marking use: the perfective and past markings are strongly associated with Achievements/Accomplishments; the progressive marking is strongly associated with Activities; the present marking is strongly associated with States. Even though Mongolian and Chinese learners show virtually the same acquisition pattern, their performances in using the past, perfective, and progressive markings are different. Mongolian learners exhibiting superiority over Chinese learners in associating and correctly using the perfective and progressive markings, overuse of progressive markings by Mongolian learners, and overextending progressive markings to States by both L1 groups show evidence of L1 transfer. Contradictory findings are greater use and correct use of past markings with States than with Activities, overextending progressive markings to States, and learners’ preference for using progressive markings with Achievements to Accomplishments, which suggest that the methodology, L1, sentence structures and input may somewhat affect the results of tense-aspect marking studies.

Embedded aspect in L2 acquisition: Evidence from L1 Russian learners of Greek

This work investigates first language (L1) influence on the second language (L2) acquisition of aspect, comparing participants with homogeneous L1 background (Russian) in Mainland Greece (L2 Standard Modern Greek) and Cyprus (L2 Cypriot Greek), where verb complementation takes a finite form instead of an infinitival as is possible in Russian. Focus of the experimental study lies on embedded environments, which require only perfective aspect in Greek but allow either perfective or imperfective in Russian. The findings support the Full Transfer/Full Access Hypothesis, according to which aspect is part of Universal Grammar and L2 learners can reach native-like attainment due to access to it, while at the initial stage of L2 acquisition transfer from L1 into L2 takes place.

Crosslinguistic transfer in the acquisition of compound words in Persian–English bilinguals

Crosslinguistic transfer in bilingual language acquisition has been widely reported in various linguistic domains (e.g., Döpke, 1998; Nicoladis, 1999; Paradis, 2001). In this study we examined structural overlap (Döpke, 2000; Müller and Hulk, 2001) and dominance (Yip and Matthews, 2000) as explanatory factors for crosslinguistic transfer in Persian–English bilingual children's production of novel compound words. Nineteen Persian monolinguals, sixteen Persian–English bilinguals, and seventeen English monolinguals participated in a novel compound production task. Our results showed crosslinguistic influence of Persian on English and of English on Persian. Bilingual children produced more right-headed compounds in Persian, compared with Persian monolinguals, and in their English task, they produced more left-headed compounds than English monolinguals. Furthermore, Persian-dominant bilinguals tended more towards left-headed compounds in Persian than the English-dominant group. These findings point to both structural overlap and language dominance as factors underlying crosslinguistic transfer.

Transfer of movement sequences: Bigger is better

Experiment 1 was conducted to determine if proportional transfer from “small to large” scale movements is as effective as transferring from “large to small.” We hypothesize that the learning of larger scale movement will require the participant to learn to manage the generation, storage, and dissipation of forces better than when practicing smaller scale movements. Thus, we predict an advantage for transfer of larger scale movements to smaller scale movements relative to transfer from smaller to larger scale movements. Experiment 2 was conducted to determine if adding a load to a smaller scale movement would enhance later transfer to a larger scale movement sequence. It was hypothesized that the added load would require the participants to consider the dynamics of the movement to a greater extent than without the load. The results replicated earlier findings of effective transfer from large to small movements, but consistent with our hypothesis, transfer was less effective from small to large (Experiment 1). However, when a load was added during acquisition transfer from small to large was enhanced even though the load was removed during the transfer test. These results are consistent with the notion that the transfer asymmetry noted in Experiment 1 was due to factors related to movement dynamics that were enhanced during practice of the larger scale movement sequence, but not during the practice of the smaller scale movement sequence. The findings that the movement structure is unaffected by transfer direction but the movement dynamics are influenced by transfer direction is consistent with hierarchal models of sequence production.

Contribution of morphological awareness to Chinese-English biliteracy acquisition.

This study is an investigation of the contribution of morphological awareness in Chinese-English biliteracy acquisition. Comparable tasks in Chinese and English were administered to test children's skills in morphological awareness, phonological awareness, oral vocabulary, word reading, and reading comprehension. The results showed that after the effect of Chinese-based predictors had been accounted for, English morphological awareness of compound structure still contributed to variance in both character reading and reading comprehension in Chinese. This finding indicates a cross-language morphological transfer in acquisition of two distinct writing systems. The transfer from English L2 to Chinese L1 is due to the bilingual children's rapidly increasing English L2 skills in their primary school years.