检索结果-南通市图书馆

Fabrication of La,Ce co-doped ZnO nanorods for improving photodegradation of methylene blue

Journal of Rare Earths 2024年第1期42卷 76-83,I0003页

作者： Erfan Hakim Azmal Zaid Jin-Chung Sin sze-mun lam Abdul Rahman Mohamed School of Chemical Engineering Universiti Sains Malaysia(USM)14300Nibong TebalPenangMalaysia College of Environmental Science and Engineering Guilin University of TechnologyGuilin541004China Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control Guilin University of TechnologyGuilin541004China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin541004China Faculty of Engineering and Green Technology Universiti Tunku Abdul RahmanJalan UniversitiBandar Barat31900KamparPerakMalaysia

La,Ce co-doped ZnO nanorods(ZnLC)were synthesized through a one-step solvothermal *** photocatalysts were characterized by X-ray diffraction,Raman spectroscopy,field-emission scanning electron microscopy,energy dispersive X-ray,transmission electron microscopy,UV-vis diffuse reflectance spectroscopy and photo luminescence *** La and Ce doping enhanced the visible light absorption ability of ZnLC and a red shift was detected for *** simulated solar light irradiation,the ZnO doped with 3 at%La and 1 at%Ce(ZnLC1)degrades methylene blue(MB)more effectively than those of pure ZnO,La-doped ZnO(ZnL)and commercially available *** improved photocatalytic performance of ZnLC1 can be attributed to the high charge separation efficiency as demonstrated by the photoluminescence ***,the photocatalytic experiments reveal that several parameters have their own impact on the MB *** a variety of radical scavengers,it is discovered that superoxide anion radical plays a crucial role in the degradation of *** ZnLC1 is also reused several times without noticeable decrease of photoactivity,indicating that it has a substantial potential for environmental remediation applications.

关键词： ZnO Lanthanum Cerium Co-doping Photodegradation Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

TRMT6 and TRMT61A facilitated acute pancreatitis severity via regulation of neutrophil function

引用

Science China Life Sciences 2025年

作者： Yuan Dong Li Su Sin Man lam Cen Yan Yalan Deng Guotao Lu Jinkui Yang Guanghou Shui Yingmei Feng Beijing Institute of Hepatology Beijing Youan HospitalCapital Medical University Department of Science and Development Beijing Youan HospitalCapital Medical University Laboratory for Clinical Medicine Capital Medical University Neuroscience Research Institute Peking University Center of Medical and Health AnalysisPeking University State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of Sciences Pancreatic Center Department of GastroenterologyAffiliated Hospital of Yangzhou UniversityYangzhou University Beijing Key Laboratory of Diabetes Research and Care Department of EndocrinologyBeijing Tongren HospitalCapital Medical University

Dear Editor,Type 2 diabetes mellitus (T2DM) has been identified as a risk factor for increased severity in acute pancreatitis (AP)(Mikóet al,2018).However,to date,no studies have simultaneously included healthy individuals,T2DM patients,and AP patients to investigate which diabetes-associated metabolites are linked to AP severity.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Synchronous colorectal cancer: Clinical, pathological and molecular implications

引用

World Journal of Gastroenterology 2014年第22期20卷 6815-6820页

作者： Alfred King-Yin lam Sally sze-Yan Chan Melissa Leung Cancer Molecular Pathology Griffith Health InstituteGriffith UniversityGold Coast QLD 4222QueenslandAustralia

Synchronous colorectal carcinoma refers to more than one primary colorectal carcinoma detected in a single patient at initial presentation. A literature review has shown that the prevalence of the disease is approximately 3.5% of all colorectal carcinomas. This disease has a male to female ratio of 1.8:1. The mean age at presentation of patients with synchronous colorectal cancer is in the early half of the seventh decade. Patients with inflammatory bowel diseases (ulcerative colitis and Crohn’s disease), hereditary non-polyposis colorectal cancer, familial adenomatous polyposis and serrated polyps/hyperplastic polyposis are known to have a higher risk of synchronous colorectal carcinoma. These predisposing factors account for slightly more than 10% of synchronous colorectal carcinomas. Synchronous colorectal carcinoma is more common in the right colon when compared to solitary colorectal cancer. On pathological examination, some synchronous colorectal carcinomas are mucinous adenocarcinomas. They are usually associated with adenomas and metachronous colorectal carcinomas. Most of the patients with synchronous colorectal cancer have two carcinomas but up to six have been reported in one patient. Patients with synchronous colorectal carcinoma have a higher proportion of microsatellite instability cancer than patients with a solitary colorectal carcinoma. Also, limited data have revealed that in many synchronous colorectal carcinomas, carcinomas in the same patient have different patterns of microsatellite instability status, p53 mutation and K-ras mutation. Overall, the prognosis of patients with synchronous colorectal carcinoma is not significantly different from that in patients with solitary colorectal carcinoma, although a marginally better prognosis has been reported in patients with synchronous colorectal carcinoma in some series. A different management approach and long-term clinical follow-up are recommended for some patients with synchronous colorect

关键词： Synchronous carcinoma Colorectal carcinoma Prevalence Microsatellite instability Review

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Characterization of Plant Prevacuolar and Endosomal Compartments

引用

Journal of Integrative Plant Biology 2007年第8期49卷 1119-1128页

作者： Sheung Kwan lam Yu Chung Tse Yansong Miao Hong-Ye Li Junqi Wang sze Wan Lo Liwen Jiang Department of Biology and Molecular Biotechnology Program The Chinese University of Hong Kong Shatin New Territories Hong Kong China Institute of Plant Molecular Biology & Agricultural Biotechnology The Chinese University of Hong Kong Shatin New Territories Hong Kong China

Prevacuolar compartments （PVCs） and endosomal compartments are membrane-bound organelles mediating protein traffic to vacuoles in the secretory and endocytic pathways of plant cells. Over the years, great progress has been made towards our understanding in these two compartments in plant cells. In this review, we will summarize our contributions toward the identification and characterization of plant prevacuolar and endosomal compartments. Our studies will serve as important steps in future molecular characterization of PVC biogenesis and PVC-mediated protein traffickinq in plant cells.

关键词： BY-2 cells endosomal compartment prevacuolar compartment organelle proteomic vacuolar sorting receptor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Total Ginsenoside Extract from Panax ginseng Enhances Neural Stem Cell Proliferation and Neuronal Differentiation by Inactivating GSK-3β

引用

Chinese Journal of Integrative Medicine 2022年第3期28卷 229-235页

作者： LIN Kai-li ZHANG Ji CHUNG Hau-lam WU Xin-yi LIU Bin ZHAO Bo-xin sze Stephen Cho-wing ZHOU Ping-zheng YUNG Ken Kin-lam ZHANG Shi-qing School of Public Health Guangzhou Medical UniversityGuangzhou(511436)China Department of Biology Hong Kong Baptist University(HKBU)Hong Kong Special Administrative Region(999077)China HKBU Shenzhen Research Institute and Continuing Education ShenzhenGuangdong Provinee(518057)China Department of Plastic Surgery Zhujiang HospitalSouthern Medical UniversityGuangzhou(510515)China Guangzhou Institute of Cardiovascular Disease the Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhou(510260)China Department of Pharmacy Nan fang HospitalSouther n Medical Un iversityGuan gzhou(510515)China Guangdong Provincial Key Laboratory of New Drug Screening School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou(510515)China

Objective:To study the effects of total ginsenosides(TG)extract from Panax ginseng on neural stem cell(NSC)proliferation and differentiation and their underlying ***:The migration of NSCs after treatment with various concentrations of TG extract(50,100,or 200μg/mL)were *** proliferation of NSCs was examined by a combination of cell counting kit-8 and neurosphere *** differentiation mediated by TG extract was evaluated by Western blotting and immunofluorescence staining to monitor the expression of nestin and microtubule associated protein 2(MAP2).The GSK-3β/β-catenin pathway in TG-treated NSCs was examined by Western blot *** NSCs with constitutively active GSK-3βmutant were made by adenovirus-mediated gene transfection,then the proliferation and differentiation of NSCs mediated by TG were further ***:TG treatment significantly enhanced NSC migration(P<0.01 or P<0.05)and increased the proliferation of NSCs(P<0.01 or P<0.05).TG mediation also significantly upregulated MAP2 expression but downregulated nestin expression(P<0.01 or P<0.05).TG extract also significantly induced GSK-3βphosphorylation at Ser9,leading to GSK-3βinactivation and,consequently,the activation of the GSK-3β/β-catenin pathway(P<0.01 or P<0.05).In addition,constitutive activation of GSK-3βin NSCs by the transfection of GSK-3βS9 A mutant was found to significantly suppress TG-mediated NSC proliferation and differentiation(P<0.01 or P<0.05).Conclusion:TG promoted NSC proliferation and neuronal differentiation by inactivating GSK-3β.

关键词： ginsenoside neural stem cell proliferation neuronal differentiation GSK-3β

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Novel N-heteroaromatic dyes for textile substrates

引用

Chinese Chemical Letters 2014年第8期25卷 1165-1168页

作者： Kim-Hung lam Sarah sze-Wah Ho Pik-Ling lam Johnny Cheuk-On Tang Zhao-Xiang Bian Albert Sun-Chi Chan Hua Li Wai-Yeung Wong Chung-Hin Chui Department of Applied Biology and Chemical Technology Institute of Textile and Clothing The Hong Kong Polytechnic University Clinical Division School of Chinese Medicine Hong Kong Baptist University Institute of Molecular Functional Materials Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist University College of Life and Environmental Sciences Minzu University of China HKBU Institute of Research and Continuing Education Shenzhen Virtual University Park

This study reports the synthesis and characterization of quinoline derivatives. The synthesized quinoline compounds were applied to the dyeing treatment of acrylic fabrics. The color fastness to washing and light of quinoline compound-dyed fabrics was examined. Human skin HaCaT cell line was also used for the skin cytotoxicity evaluation of the quinoline compound-dyed acrylic fabrics.

关键词： Acrylic fabrics Fluorescent Quinoline dyes Skin cytotoxicity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Answering Reachability Queries on Incrementally Updated Graphs by Hierarchical Labeling Schema

引用

Journal of Computer Science & Technology 2016年第2期31卷 381-399页

作者： Tak-lam Wong Department of Mathematics and Information Technology The Hong Kong Institute of Education Hong Kong China

We proposed a novel solution schema called the Hierarchical Labeling Schema （HLS） to answer reachability queries in directed graphs. Different from many existing approaches that focus on static directed acyclic graphs （DAGs）, our schema focuses on directed cyclic graphs （DCGs） where vertices or arcs could be added to a graph incrementally. Unlike many of the traditional approaches, HLS does not require the graph to be acyclic in constructing its index. Therefore, it could, in fact, be applied to both DAGs and DCGs. When vertices or arcs are added to a graph, the HLS is capable of updating the index incrementally instead of re-computing the index from the scratch each time, making it more efficient than many other approaches in the practice. The basic idea of HLS is to create a tree for each vertex in a graph and link the trees together so that whenever two vertices are given, we can immediately know whether there is a path between them by referring to the appropriate trees. We conducted extensive experiments on both real-world datasets and synthesized datasets. We compared the performance of HLS, in terms of index construction time, query processing time and space consumption, with two state-of-the-art methodologies, the path-tree method and the 3-hop method. We also conducted simulations to model the situation when a graph is updated incrementally. The performance comparison of different algorithms against HLS on static graphs has also been studied. Our results show that HLS is highly competitive in the practice and is particularly useful in the cases where the graphs are updated frequently.

关键词： graph indexing reachability query Hierarchical Labeling Schema (HLS) incremental update directed cyclic graph

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ground movements due to deep excavations in Shanghai： Design charts

引用

Frontiers of Structural and Civil Engineering 2014年第3期8卷 201-236页

作者： Malcolm D. BOLTON sze-Yue lam Paul J. VARDANEGA Charles W. W. NG Xianfeng MA Department of Engineering University of Cambridge Cambridge CB2 1PZ United Kingdom Advanced Geomechanics Perth Western Australia 6009 Australia Department of Civil Engineering University of Br&tol Bristol BS8 1TR United Kingdom Department of Civil and Environmental Engineering The Hong Kong University of Science and Technology Hong Kong China Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tong/i University Shanghai 200092China

Recent research has clarified the sequence of ground deformation mechanisms that manifest themselves when excavations are made in soft ground. Furthermore, a new framework to describe the deformability of clays in the working stress range has been devised using a large database of previously published soil tests. This paper aims to capitalize on these advances, by analyzing an expanded database of ground movements associated with braced excavations in Shanghai. It is shown that conventional design charts fail to take account either of the characteristics of soil deformability or the relevant deformation mechanisms, and therefore introduce significant scatter. A new method of presentation is found which provides a set of design charts that clarify the influence of soil deformability, wall stiffness, and the geometry of the excavation in relation to the depth of soft ground.

关键词： Shanghai excavations mobilizable strength design dimensionless groups design charts

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Design and mathematical analysis of activating transcriptional amplifiers that enable modular temporal control in synthetic juxtacrine circuits

引用

Synthetic and Systems Biotechnology 2023年第4期8卷 654-672页

作者： Calvin lam Department of Biochemistry and Molecular Biology University of Nebraska Medical CenterOmahaNE68198USA.

The ability to control mammalian cells such that they self-organize or enact therapeutic effects as desired has incredible *** only would it further our understanding of native processes such as development and the immune response,but it would also have powerful applications in medical fields such as regenerative medicine and *** control is typically obtained by synthetic circuits that use synthetic receptors,but control remains *** synthetic juxtacrine receptors(SJRs)are widely used as they are fully modular and enable spatial control,but they have limited gene expression amplification and temporal *** these are integral facets to cell control,I therefore designed transcription factor based amplifiers that amplify gene expression and enable unidirectional temporal control by prolonging duration of target gene *** a validated in silico framework for SJR signaling,I combined these amplifiers with SJRs and show that these SJR amplifier circuits can direct spatiotemporal patterning and improve the quality of self-organization.I then show that these circuits can improve chimeric antigen receptor(CAR)T cell tumor killing against various heterogenous antigen expression *** amplifiers are flexible tools that improve control over SJR based circuits with both basic and therapeutic applications.

关键词： Synthetic biology Synthetic development Synthetic immunotherapy synNotch SNIPR Amplifiers Self-organization Temporal control Spatiotemporal control CAR T cell Synthetic receptors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Phase change memory

引用

Science China(Information Sciences) 2011年第5期54卷 1061-1072页

作者： lam Chung IBM Research T.J. Watson Research Center Yorktown Heights New York 10598 USA

Phase change memory (PCM) is a non-volatile solid-state memory technology based on the large resistivity contrast between the amorphous and crystalline states in phase change materials. We present the physics behind this large resistivity contrast and describe how it is being exploited to create high density PCM. We address the challenges facing this technology, including the design of PCM cells, fabrication, device variability, thermal cross-talk and write disturb. We discuss the scalability, assess the performance, and examine the reliability of PCM including data retention, multi-bit storage and endurance.

关键词： solid state memory non-volatile DRAM flash phase change resistive memory data retention write endurance solid-state drive computer memory

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：