Results 81 to 90 of about 35,515 (197)
Exploring English Language Learners’ Vocabulary Knowledge and Usage When Speaking
International Journal of Applied Linguistics, EarlyView.ABSTRACT Vocabulary forms a fundamental component of speaking ability, as it enables speakers to convey meaning accurately, fluently, and effectively. Although the relationship between vocabulary and speaking has been investigated to some extent, gaps remain in understanding the link between learners’ vocabulary knowledge and their speaking proficiency,
Junyan Guo, Martin East
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Second/foreign language (L2) learning is not solely a cognitive/linguistic acquisition process but includes mixed emotional experiences. Understanding how these emotional experiences relate to resilience could help our understanding of how learners navigate fluctuations in emotions when learning an L2.
Xinjie Chen +5 more
wiley +1 more source
L2 Chinese Grammatical Acquisition and Processing: A Substantive and Methodological Review
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study presents a systematic review of 92 empirical studies on Chinese as a second language (CSL) in grammatical processing and development, synthesizing their substantive foci and methodological characteristics. The results reveal consistent scholarly attention to cross‐linguistic topics, with less focus on features that are distinctively
Shaohua Fang, Yi Xu, Jiani He, Jia Wang
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四川大学学报. 自然科学版, 2005 研究了奇异线性模型(Y,Xβ,σ2V).给出最好线性无偏估计能表成类似最优加权最小二乘估计形式的充要条件,并举例说明了等价条件中V的对称自反广义逆的存在性不能进一步削弱为V的广义逆的存在性.
刘秀红, 周杰, 吴耀国
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Co‐Teaching in a Virtual Intensive Study Language Programme: Insights From Team Ethnography
International Journal of Applied Linguistics, EarlyView.ABSTRACT As virtual study abroad becomes an increasingly important form of international education, little is known about how transnational teaching is organised and sustained across institutions. Using activity theory as an analytical framework and team ethnography as methodology, this study examines a virtual intensive study (VIS) programme delivered
Zhu Hua +7 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2008 目的探讨孤立性肺结节CT灌注成像技术的应用。方法利用美国GE公司的Hispeed CT 16排螺旋CT灌注扫描技术对51例孤立性肺结节（Solitary pulmonary nodule,SPN）患者病变良恶性的鉴别。结果良恶性结节灌注后具有不同的血流量（Blood flow,BF）、血容量（Blood volume,BV）、平均通过时间（Mean transit time,MTT）和表面通透性（Per-meablity surface,PS）。良恶性结节的各项灌注参数之间存在显著性差异 ...
侯铁 +7 more
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Neutral interactions among non‐native plants are common
New Phytologist, EarlyView.Global distribution of studies and overall effect of co‐invasion for all metrics of non‐native plant performance combined. Summary Globalization has accelerated the establishment of non‐native plant species, increasing the prevalence of multispecies co‐invasions; yet interactions among co‐invaders remain poorly understood.
Feng He +7 more
wiley +1 more source
四川大学学报. 自然科学版, 1980 当α≡0,β不为0时,问题(1.3)化为第一边值问题,它的可解性已有很多人研究,当α≠0时,问题(1.3)是第二边值问题,这也有不少作者进行研究,其解的存在性和光滑性已得到能决,可参阅[1].但是当α在S的某些点上为零,而在其余点不为零时,问题(1.3)的解存在吗?此解的光滑性又如何呢?我们知道,当A是线性椭圆算子的时候,即使f是光滑的,u也不一定是光滑的.因此必须对α和β加上适当的限制,才有可能保证解的光滑性.本文借助于泛函分析工具证明了问题(1.3)解的存在性和光滑性.2 ...
唐贤江
doaj
There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy
Policy Studies Journal, EarlyView.ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino +2 more
wiley +1 more source
四川大学学报. 自然科学版, 2005 在Banach空间中研究了算子方程x∈-Ax+Cx解的存在性问题,其中A:D(A)X→2X是一增生映象,C:D(C)X→X是一可数的1-集压缩映象.在对算子A和C附加某些边界条件下,得到关于上述算子方程解的几个存在性结果.
吴定平
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