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“超语实践”理论的来龙去脉——李嵬教授访谈录

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中国外语 2022年第3期19卷 64-68页

作者：鲍敏李嵬东南大学外国语学院伦敦大学学院

超语实践(translanguaging)是国际应用语言学领域的重要理论之一,也是近几年的研究热点。本文是对李嵬教授的访谈录,介绍了超语实践理论的来龙去脉,包括理论创新、内涵、研究方法、核心概念及对外语教学的启示等。李嵬教授指出,从教学... 详细信息

超语实践(translanguaging)是国际应用语言学领域的重要理论之一,也是近几年的研究热点。本文是对李嵬教授的访谈录,介绍了超语实践理论的来龙去脉,包括理论创新、内涵、研究方法、核心概念及对外语教学的启示等。李嵬教授指出,从教学法发展而来的超语实践是应用语言学的实践性理论;该理论打破了语言、语言变体和其他符号资源的界限,重新定义了语言;超语实践使用“即时分析”的研究方法,关注外语教学和新媒体语境下语言实践过程中的创造性和批判性,为跨语言实践研究带来了新的视角。本文介绍超语实践理论,以期推进国内应用语言学的研究进展。

关键词：应用语言学超语实践外语教学

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李威舞美设计近作

演艺科技 2018年第1期 72-72,I0001-I0007页

作者：李威中国戏曲学院北京100073

欣赏京剧《陈廷敬》、综合学术演出《戏韵画意》、音乐剧《春之觉醒》、彝族古剧《撮泰吉》和宿州梆子《风涌大运河》五部剧目的舞美设计。

关键词：李威舞美设计《陈廷敬》《戏韵画意》《春之觉醒》《撮泰吉》《风涌大运河》

Humic acid-mediated transport of a typical soil passivation remediation product(chloropyromorphite)in saturated porous media

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Journal of Environmental Sciences 2024年第7期141卷 51-62页

作者： Xinying li Mengjia Zhang Siyuan li wei wei School of Environment Jiangsu Engineering Lab of Water and Soil Eco-remediationJiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response TechnologyNanjing Normal UniversityNanjing 210023China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023China

Conversion of labile Pb species into chloropyromorphite(CPY)using phosphorus-bearing amendments was considered to be an ideal strategy in soil passivation remediation.However,the fate and transport of CPY in the soil are poorly understood.This study aims to fill the knowledge gap by evaluating the fate and transport of CPY under environmentally relevant conditions of humic acid(HA),pH,electrolyte concentration,and species through the saturated sandy medium.Results showed that bare CPY colloids are basically immobile in sandy porous media while the co-existence of HA made the transport of CPY improved by30%-93.5%.Facilitated transport of CPY was attributed to the increased stability of CPY and the repulsive interaction between CPY particles and sands due to HA adsorption.The mobility of CPY was also increased with increasing pH from 5.0 to 9.0.When the pH was 9 with a10 mmol/L NaCl background solution,the stronger energy barrier between CPY and sand led to enhanced transport behavior.The divalent Ca^(2+)had a more dramatic effect than monovalent Na^(+)on the aggregation and sedimentation of CPY colloids due to its effectivescreening of the surface charge of CPY and bridging interaction with CPY particles.Derjaguin-LandauVerwey-Overbeek theory and attachment efficiency calculation indicated that high energy barriers were responsible for the high mobility of CPY colloids,while the retention of CPY in sands was mainly caused by secondary energy minimum and physically straining.The findings of this work can help to evaluate the fate of soil passivation remediation products in natural water and soil.

关键词： Chloropyromorphite DLVO theory Stability Saturated porous medium Transport

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李伟:用坚定与创新唤醒城市活力

中外建筑 2023年第1期 1-7,I0002页

作者：李伟胡力凌鑫江苏省建筑设计研究院《中外建筑》杂志

1华丽变迁再生更新COA:苏州新地中心一期曾是江苏第一高层建筑,是苏州第一个集综合办公、商务、休闲于一体,具备城市配套功能的大型综合项目,可谓众多光环加身,无法想像它的前身竟是烂尾楼。在烂尾楼的基础上进行建筑更新,您认为这种更... 详细信息

1华丽变迁再生更新COA:苏州新地中心一期曾是江苏第一高层建筑,是苏州第一个集综合办公、商务、休闲于一体,具备城市配套功能的大型综合项目,可谓众多光环加身,无法想像它的前身竟是烂尾楼。在烂尾楼的基础上进行建筑更新,您认为这种更新对城市意味着什么?在更新过程中如何平衡原有建筑现状与理想设计表达的矛盾?李伟:苏州新地中心一期其实是一个很有故事的项目,开发商是我们一直合作的新地集团。他们之前在青岛就有很成熟的烂尾楼改造经验。项目位于苏州高新区,紧邻市中心,区位优越。项目原来是一个高层办公楼,已经快封顶了,但遇上了2003年房地产低潮期,便一直烂尾在那里;当时资方老板一眼就看中了它,想把它做成苏州新区最好的酒店,项目最终的成功展现了资方独到的商业眼光和投资魄力。

关键词：城市更新城市空间潜力弹性设计可持续发展

Maternal Perfluorinated Compound Exposure and Risk of Early Pregnancy Loss: A Nested Case-control Study

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Biomedical and Environmental Sciences 2022年第2期35卷 174-179页

作者： MI Xin liN Shi Qi ZHANG Xiao Fen li Jia Jia PEI li Jun JIN Feng liAO Qi XIE li Min wei li Cong HAO Chan Juan ZHANG Ya wei LI Wei Shunyi Women’s and Children’s Hospital of Beijing Children’s Hospital Beijing 101300China Institute of Population Research/China Center on Population Health and Development Peking UniversityBeijing 100871China

Early pregnancy loss,defined as a nonviable intrauterine pregnancy occurring before 12 weeks of gestation,is estimated to affect 25%of clinically diagnosed pregnancies[1].Several demographic,lifestyle,and environmental risk factors have been reported to associate with the risk of early pregnancy loss,yet the causes of most early pregnancy losses remain elusive;thus,further studies are needed.Perfluorinated compounds(PFCs)are a class of widespread environmental pollutants that can adversely affect human reproductive health.Humans are inevitably exposed to PFCs through diet,water,air and dust.A wealth of epidemiological and toxicological research using a variety of animal models has warned of the persistence,bioaccumulation,and toxicity of PFCs[2].

关键词： pregnancy viable Early

Synergistic double-atom catalysts of metal-boron anchored on g-C_(2)N for electrochemical nitrogen reduction:Mechanistic insight and catalyst screening

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Journal of Energy Chemistry 2023年第5期80卷 350-360,I0009页

作者： Yang li wei An College of Chemistry and Chemical Engineering Shanghai University of Engineering ScienceShanghai 201620China

The rational design of a novel catalytic center with a sound basis remains both challenging and rewarding for the electrochemical reduction of N2(e NRR),which has provided a feasible route for achieving clean and sustainable NH3production under ambient conditions.Herein,using density functional theory calculations,we demonstrate that hybrid metal(M)-boron(B)double-atom catalysts(DACs)embedded in gC_(2)N substrate(M-B@C_(2)N,M=3d,4d and 5d transition metals)can achieve both high catalytic activity and high selectivity in e NRR.The proposed M-B@C_(2)N DACs have exhibited impressive feasibility and stability thanks to the resilient and robust C_(2)N substrate with abundant pyridinic N atoms distributed among right-sized pore structures.Our results reveal that like the metal center,the embedded B atom can actively involve in N≡N bond activation viaπ*-backdonation mechanism concomitant with the substantial charge transfer to adsorbed*N2,leading to sizable NAN bond elongation.Accordingly,both adsorption energy and NAN bond length of*N2can be employed as catalytic descriptors for predicting e NRR activity in terms of the limiting potentials(UL).Using high-throughput screening method,we found that six M-B@C_(2)N candidates have stood out as the outstanding electrocatalysts for driving e NRR,namely,M=Ti(UL=0 V),Mo(UL=0 V),Nb(UL=-0.04 V),W(UL=-0.23 V),Zr(UL=-0.26 V),V(UL=-0.28 V).The underlying origin is attributed to the balanced and constrained N-affinity of M-B dual site working in synergy,which can thus be used as one important guide of catalyst design.

关键词： Electrocatalysis N_(2)reduction Double-atom catalyst Synergistic effect DFT

Potential of ginsenoside Rh_(2)and its derivatives as anti-cancer agents

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Chinese Journal of Natural Medicines 2022年第12期20卷 881-901页

作者： li Keke li Zhongyu Men Lei LI Wei GONG Xiaojie Key Laboratory of Biotechnology and Bioresources Utilization Ministry of EducationDalian Minzu UniversityDalian 116600China College of Chinese Medicinal Materials Jilin Agricultural UniversityChangchun 130118China

As a steroid skeleton-based saponin,ginsenoside Rh_(2)(G-Rh_(2))is one of the major bioactive ginsenosides from the plants of genus Panax L.Many studies have reported the notable pharmacological activities of G-Rh_(2)such as anticancer,antiinflammatory,antiviral,antiallergic,antidiabetic,and anti-Alzheimer’s activities.Numerous preclinical studies have demonstrated the great potential of G-Rh_(2)in the treatment of a wide range of carcinomatous diseases in vitro and in vivo.G-Rh_(2)is able to inhibit proliferation,induce apoptosis and cell cycle arrest,retard metastasis,promote differentiation,enhance chemotherapy and reverse multi-drug resistance against multiple tumor cells.The present review mainly summarizes the anticancer effects and related mechanisms of G-Rh_(2)in various models as well as the recent advances in G-Rh_(2)delivery systems and structural modification to ameliorate its anticancer activity and pharmacokinetics characteristics.

关键词： Ginsenoside Rh_(2) Anticancer Mechanisms of action Synergistic effect Drug delivery systems

CRABP1-mediated non-canonical retinoic acid signaling in motor neurons and neural stem cells

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Neural Regeneration Research 2024年第6期19卷 1169-1170页

作者： li-Na wei Department of Pharmacology University of Minnesota Medical School

Retinoic acid(RA), the active metabolite of vitamin A(the retinoids), elicits a wide spectrum of biological activities critical to the development and health of most of the organ systems including the nervous systems(Corcoran et al., 2002). The effects of RA are mediated by two very distinct pathways; the first is manifested in the nucleus by binding to a large family of nuclear RA receptors(RARs) to regulate proper expression of RAtargeted genes,

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Global asymptotical stability in a rational difference equation

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Applied Mathematics(A Journal of Chinese Universities) 2021年第1期36卷 51-59页

作者： li Xian-yi LI Wei Institute of Nonlinear Analysis and Department of Big Data Science Zhejiang University of Science and TechnologyHangzhou 310023China

In this paper we prove a global attractivity result for the unique positive equilibrium point of a difference equation,which improves and generalizes some known ones in the existing literature.Especially,our results c... 详细信息

关键词： global asymptotic stability global attractivity Open problem and conjecture Schwartzian derivative,rational difference equation