Bilingual Children’s Language and Literacy Development

If asked to name a place that typifies issues in multicultural and multilingual pedagogy, few educators worldwide would think first of New Zealand. Yet in a world of increasing globalization, where many of us are forced to put English first while striving to preserve and respect the cultural and linguistic distinctiveness of our own or our students’ ethnicities, New Zealand presents an instructive case study. Long submerged under the dominant English- speaking Pakeha (euro-New Zealand) culture, the indigenous language of the Maori people foundered until a recent movement for cultural recognition brought it into the foreground of national consciousness. During roughly the same period, since a 1987 change in the immigration law, New Zealand has experienced dramatic changes in its cultural and linguistic landscape. Most notably, a significant influx of Pacific islanders and Asians of various nationalities has led to the presence of a range of new cultural communities and to a major challenge for New Zealand’s schools

The Influence of Changing L1 on Child Second Language Acquisition

This paper presents a 26-month longitudinal study of a child who began learning English while developing her native Korean, conducted in order to investigate the role of language transfer in child SLA. The study examined the subject’s first language (L1) and second language (L2) negation, and plural and possessive markings. It looked for evidence of language transfer (LT) using comparisons to English L2 data from speakers with similar and dissimilar L1s, as well as comparisons between the subject’s L2 speech and her L1 system (Jarvis, 2000). The data showed evidence of LT for all features studied, with a predominance of Korean to English transfer early in the study period, and English to Korean toward the end. Results are interpreted using Foster-Cohen’s (2001) Sliding Window approach, which states that rather than neatly distinguishing L1 from L2 acquisition or early from late SLA, individual development along a variety of axes should be considered, including age, cognitive maturity, and native-like performance in L1. From this standpoint, the subject’s waxing and waning L2 performance across the study period appears to reflect changes in her L1 and in intensity of exposure to both languages

The “Natural Order” of Morpheme Acquisition: A Historical Survey and Discussion of Three Putative Determinants

The paper discusses the history and implications of the so-called “morpheme” studies. A brief overview of L1 research in this regard is followed by a more detailed discussion of L2 research. Thereafter, the paper explores the impact of three putative determinants of acquisition order: semantic complexity, input frequency, and native language transfer. The possible role of these determinants in accounting for perceived differences in L1 and L2 acquisition orders is also discussed, along with their implications for various theoretical perspectives on language acquisition. The paper concludes with both practical applications and criticism of existing natural (morpheme) order studies as well as suggestions for future work in this field, such as investigating target languages other than English and developing a multi-determinant approach to acquisition order

Alpha-tocopherol exerts protective function against the mucotoxicity of particulate matter in amphibian and human goblet cells

Exposure to particulate matter (PM) in ambient air is known to increase the risk of cardiovascular disorders and mortality. The cytotoxicity of PM is mainly due to the abnormal increase of reactive oxygen species (ROS), which damage cellular components such as DNA, RNA, and proteins. The correlation between PM exposure and human disorders, including mortality, is based on long-term exposure. In this study we have investigated acute responses of mucus-secreting goblet cells upon exposure to PM derived from a heavy diesel engine. To this end, we employed the mucociliary epithelium of amphibian embryos and human Calu-3 cells to examine PM mucotoxicity. Our data suggest that acute exposure to PM significantly impairs mucus secretion and results in the accumulation of mucus vesicles in the cytoplasm of goblet cells. RNA-seq analysis revealed that acute responses to PM exposure significantly altered gene expression patterns; however, known regulators of mucus production and the secretory pathway were not significantly altered. Interestingly, pretreatment with alpha-tocopherol nearly recovered the hyposecretion of mucus from both amphibian and human goblet cells. We believe this study demonstrates the mucotoxicity of PM and the protective function of alpha-tocopherol on mucotoxicity caused by acute PM exposure from heavy diesel engines

Carotid Endarterectomy for Symptomatic Complete Occlusion of the Internal Carotid Artery

We described 9 consecutive patients who underwent operative carotid artery exploration with attempted carotid endarterectomy (CEA) for symptomatic internal carotid artery (ICA) occlusion. Indications for this surgery based on vascular imaging included segmental occlusion of the proximal ICA and also extensive occlusion of the distal ICA in selected patients in whom color-flow duplex ultrasound showed a poorly echogenic or anechoic thrombus with a flow void, suggestive of an acute thrombus. CEA was performed successfully to restore blood flow in all 9 patients:CEA in 5 and CEA with Fogarty thrombectomy in 4. Postoperative magnetic resonance (MR) angiography confirmed that revascularization had been successful in all 9 patients, and MR imaging displayed improved perfusion in 4 patients. Despite the lack of a generalized efficacy of surgical revascularization for symptomatic ICA occlusion, our study demonstrated that preoperative vascular imaging allows the selection of patients who may benefit from CEA

Vietnamese Immigrant Women's Experience of Maternity after Childbirth

PURPOSE: To understand the meaning and essence of Vietnamese migrant women's maternal experience after childbirth. METHODS: A phenomenological methodology was used for this study. Study participants were six Vietnamese marriage migrant women who had experience of childbirth in Korea. Data collection period was from February 1 through November 4, 2016. Data were collected through in-depth interview and analyzed with the Giorgi method. RESULTS: As a result of study, six main meanings and 12 themes were produced. The six main meanings produced in this study were ‘childbirth realized in the double difficulty’, ‘concerned health between the ở cữ and the sanhujori’, ‘tired body with hard parenting’, ‘crowding regret for international marriage after childbirth’, ‘Grateful partner becoming the prop’, and ‘Growing maternal instinct by moving the mind and body in a foreign country’. CONCLUSION: Consideration for postnatal care is necessary from Vietnamese marriage migrant women's viewpoint. Systematic education programs that can improve nursing capability of medical personnel for multicultured clinical practice with development of a postnatal care program suited to multiculture are also necessary

The North Pacific Oxygen Uptake Rates Over the Past Half-Century

The transport of dissolved oxygen (O2) from the surface ocean into the interior is a critical process sustaining aerobic life in mesopelagic ecosystems, but its rates and sensitivity to climate variations are poorly understood. Using a circulation model constrained to historical variability by assimilation of observations, we show that the North Pacific thermocline effectively takes up O2 primarily by expanding the area through which O2-rich mixed layer water is detrained into the thermocline. The outcrop area during the critical winter season varies in concert with the Pacific Decadal Oscillation (PDO). When the central North Pacific Ocean is in a cold phase, the winter outcrop window for the Central Mode Water class (CMW; a neutral density range of γ = 25.6 - 26.6) expands southward allowing more O2-rich surface water to enter the ocean’s interior. An increase in volume flux of water to the CMW density class is partly compensated by a reduced supply to the shallower densities of Subtropical Mode Water (γ = 24.0 - 25.5). The thermocline has become better oxygenated since the 1980s due partly to strong O2 uptake. Positive O2 anomalies appear first near the outcrop and subsequently downstream in the subtropical gyre. In contrast to the O2 variations within the ventilated thermocline, observed O2 in Intermediate Water (density range of γ = 26.7 – 27.2) shows a declining trend over the past half-century, a trend not explained by the open ocean water mass formation rate

Role of the Seasonal Cycle in the Subduction Rates of Upper–Southern Ocean Waters

Abstract A kinematic approach is used to diagnose the subduction rates of upper–Southern Ocean waters across seasonally migrating density outcrops at the base of the mixed layer. From an Eulerian viewpoint, the term representing the temporal change in the mixed layer depth (which is labeled as the temporal induction in this study; i.e., Stemp = ∂h/∂t where h is the mixed layer thickness, and t is time) vanishes over several annual cycles. Following seasonally migrating density outcrops, however, the temporal induction is attributed partly to the temporal change in the mixed layer thickness averaged over a density outcrop following its seasonally varying position and partly to the lateral movement of the outcrop position intersecting the sloping mixed layer base. Neither the temporal induction following an outcrop nor its integral over the outcrop area vanishes over several annual cycles. Instead, the seasonal eddy subduction, which arises primarily because of the subannual correlations between the seasonal cycles of the mixed layer depth and the outcrop area, explains the key mechanism by which mode waters are transferred from the mixed layer to the underlying pycnocline. The time-mean exchange rate of waters across the base of the mixed layer is substantially different from the exchange rate of waters across the fixed winter mixed layer base in mode water density classes. Nearly 40% of the newly formed Southern Ocean mode waters appear to be diapycnally transformed within the seasonal pycnocline before either being subducted into the main pycnocline or entrained back to the mixed layer through lighter density classes