Results 41 to 50 of about 26,421 (212)
The effects of axon guidance factor Slit3 on metastasis of human fibrosarcoma [PDF]
, 2015 我们通过在纤维肉瘤细胞HT1080过表达Slit3基因，分析Slit3对肿瘤细胞侵袭转移作用.Transwell侵袭实验中，Slit3过表达后抑制HT1080的迁移侵袭，在裸鼠皮下成瘤实验中，肿瘤体积明显变小、重量明显降低，Slit3过表达后抑制HT1080肿瘤细胞的侵袭转移。此外肿瘤切片HE染色后发现GFP组有病灶点，而slit3过表达则少见，这个结果说明，Slit3显著抑制HT1080细胞转移。slit3过表达后MMP2,MMP9的表达明显降低，而MMP3，MMP13表达量上调 ...
刘咏梅
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2018 以南方典型红壤区福建省长汀县水土保持科教园5种水土保持措施为研究对象，采集坡面产流产沙及稀土迁移数据，以期揭示南方红壤区水保措施的减水减沙效益及对稀土迁移的阻控效应。结果表明：（1）全坡面种草、封禁、低效马尾松施肥、乔灌草混交、人工补植马尾松5种水土保持措施的年均减流率和年均减沙率分别为65.41%，69.29%，63.42%，86.19%，72.59%和91.87%，84.21%，81.54%，94.13%，81.75%。（2）各降雨量下，5种水土保持措施径流和泥沙的稀土迁移强度分别比对照小区低85 ...
张青青 +3 more
doaj
The structure and function of WBP2 in Glioma [PDF]
, 2016 脑白质疏松症(Leukoariaosis，LA)在中年及老年人中逐渐普遍，随着年龄的 增长，患者表现出认知功能障碍、运动功能障碍、痴呆、抑郁和中风等，这在很 大程度上加重了公共医疗的负担。但是目前人们对脑白质疏松症的病理生理机制 所知甚少。 分子生物学的飞速发展为科学家们研究疾病的致病基因及发病机制提供了 更好的条件和更广阔的前景。文献报道WBP2基因SNP位点的突变与LA的发 病相关。研究发现WBP2也参与了乳腺癌的发生，因此，推测WBP2与神经疾 病和肿瘤的发生均密切相关 ...
张亚
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Metal oxide semiconductor‐supported noble metal nanoparticles are common sensing materials for gas sensors. However, the large size and their tendency to migrate at high temperatures often lead to inferior sensing sensitivity and stability. Herein, a salt‐assistant strategy is developed to prepare fully‐exposed Ir clusters on SnO2 nanorods ...
Yi Jiang +7 more
wiley +1 more source
Guangtongxin yanjiu, 2007 在数据库集群系统中,进程迁移常用于实现系统的负载均衡、高效容错和减少通信开销等方面。文章提出的基于自适应通信平台（Adaptive Communication Environment,ACE）实现进程迁移技术的方法,在用户层实现内核级的进程迁移功能,解决了数据库集群系统进程迁移跨平台的问题,提高了集群系统的数据处理和系统容错能力。
肖建桥, 卢军
doaj
, 2020 以东巢湖近城市湖湾沉积物为研究对象，在沉积物氮、磷营养盐分析的基础上，采用沉积物柱状芯样静态释放模拟法定量评估研究区域沉积物-水界面氨氮、溶解性活性磷酸盐营养盐释放潜力，利用微电极非损伤测定技术获得沉积物-水微界面溶解氧（DO）剖面分布及微界面DO消耗和扩散特征.结果表明：东巢湖近城市湖湾沉积物氮、磷污染物蓄积量较高，受TN、TP污染程度较重.沉积物内源氨氮、磷酸盐释放明显，平均释放速率分别达到32.44 mg/（m2·d）和1.25 mg/（m2·d），区域内沉积物已成为水柱中氮、磷营养盐的污染源 ...
李运奔 +11 more
semanticscholar +1 more source
A study about the impact of overpression of Oct4 and Sox2 gene on gastric cancer cell biology and oncology characteristics [PDF]
, 2015 目的：通过构建过表达干细胞因子Oct4和Sox2的胃癌SGC7901细胞株，研究过表达干细胞因子Oct4和Sox2对SGC7901胃癌细胞干细胞特性、肿瘤学特性、及生物学特性的影响，并探讨Oct4及Sox2在肿瘤细胞中的作用机制。 方法：1.构建携带Sox2基因的重组质粒，慢病毒载体感染SGC7901-OCT4细胞株得到SGC7901-OCT4-SOX2稳转细胞株。2.利用荧光定量PCR、western–bloting检测过表达Oct4及Sox2的胃癌SGC7901细胞中胃癌干细胞标志基因表达情况。3 ...
李文鹏
core
A Brief Analysis of the Acrostic in Chinese Language in Teaching Chinese as a Foreign Language [PDF]
, 2014 Acrostic is a special phenomenon of the modern Chinese language. It is a combination of lexical and syntactical that across “vocabulary” and “grammar” categories.
Agustian, A. (Agustian) +1 more
core +2 more sources
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Carbon dots (CDs) have emerged as promising modifiers for boosting the photocatalytic H2O2 production, yet their precise role remains to be quantitatively elucidated. Herein, S, N‐codoped lignin‐derived carbon dots (SN‐LCDs) and lignin‐derived carbon dots (LCDs) were synthesized and employed to modify TiO2.
Bin‐Peng Zhang +6 more
wiley +1 more source