Results 61 to 70 of about 25,070 (217)

The media discourse and social meaning construction of the 1980's THE PUBLIC MOVIE magazine [PDF]

open access: yes, 2004
20世纪80年代,《大众电影》是最受中国老百姓欢迎的杂志,它曾经是无数人生活中的伴侣,也是知识分子主办通俗杂志模式的一个成功典范,一度创下发行量的世界之最。如今,这种辉煌已成往事,风光不再。《大众电影》的兴衰,折射了中国社会转型期的巨变。 本文试图沿着20世纪80年代《大众电影》杂志话语表述的脉络,找寻其间潜隐的文化形式和交往模式,并在一定程度上还原当时人们日常生活中生成的意义样态。根据《大众电影》的内容设置以及读者接受情况,本文将话语分析集中在它的明星表述、影评话语模式和图像编码三个方面。《大众电影 ...
唐瑜敏
core  

Domain Adaptation Algorithm for 3D Human Pose Estimation with Spatial Attention and Position Optimization [PDF]

open access: yes
Existing 3D human pose estimators perform well on a single dataset but are limited by the single pose structure of the training data, resulting in insufficient generalization to cross-domain experiments.
JIANG Youpeng, HUA Yang, SONG Xiaoning
core   +1 more source

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

open access: yesRare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang   +4 more
wiley   +1 more source

人参皂带Rh2联合顺铂应用对人喉癌细胞Hep-2的作用

open access: yesZhongguo shiyan zhenduanxue, 2005
目的探讨人参皂甙Rh2与顺铂(Cisplatin,DDP)联合应用对喉癌细胞Hep-2的的作用。方法体外培养的喉癌细胞Hep-2分别加入终浓度为0.51、.0、2.0、5.0μg/ml的DDP、终浓度为10、20、30、40μg/ml的Rh2,以及终浓度为20μg/ml的Rh2分别联合终浓度为0.5、1.02、.0、5.0μg/ml的DDP,设空白对照组,待药物作用48小时后,分别用光学显微镜、MTT法、流式细胞仪(Flowcytometry,FCM)、荧光显微镜检测培养细胞的作用效果 ...
徐洪君, 孟艳, 孙宇新
doaj  

Differentiation Induced by Ginsenoside Rg1 Combined Formula Involved the Alteration of Prohibitin Localization and Expression in Human Osteosarcoma MG-63 Cells [PDF]

open access: yes, 2008
选择性抽提经人参皂苷Rg1组合(RCT)诱导处理前后的人成骨肉瘤MG-63细胞核基质,对prohibitin在核基质中的存在、分布及其与相关基因产物在RCT处理前后MG-63细胞中的共定位关系进行观察研究.蛋白质组学分析结果显示,prohibitin存在于人成骨肉瘤MG-63细胞核基质蛋白组分中,并在RCT处理后细胞核基质中表达下调;蛋白质印迹杂交确证了prohibitin在MG-63细胞核基质中的存在及其在RCT处理后下调变化;免疫荧光显微镜观察进一步证实prohibitin定位在核基质上 ...
刘庆榕   +5 more
core  

Research Status and Prospects of Flotation Methods and Reagents for Oxidized Copper Ore [PDF]

open access: yes
This is an article in the field of mineral processing engineering. Copper is an important non-ferrous metal resource. With the increasing reduction of easily processed copper sulfide, the development and utilization of copper oxide is an important ...
Baisui HAN   +5 more
core   +1 more source

Surface‐Embedded Ag@Multilayer Graphene for Photothermal‐Enhanced Superhydrophobic Anti‐Icing Coatings

open access: yesRare Metals, EarlyView.
ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang   +7 more
wiley   +1 more source

体外循环期间肺动脉灌注低温肺保护液及低温氧合血对犬的肺保护作用

open access: yesZhongguo shiyan zhenduanxue, 2006
目的研究体外循环期间肺动脉灌注低温保护液及低温氧合血对犬的肺保护作用。方法将12只杂种犬随机分为氧合血组及保护液组,各6只,左肺为对照组。体外循环(CPB)前及停CPB后不同时间点,监测气道峰压、肺血管阻力和右肺静脉血氧分压,留取血标本做生化分析以及对肺组织进行光、电镜观察。结果肺保护液组CPB后气道峰压、肺血管阻力、肺静脉氧分压、肺泡-动脉氧压力差、支气管肺泡灌洗液、肺组织MDA及组织学及透射电镜结果均明显优于氧合血组,后者又明显优于对照组。结论肺动脉灌注低温氧合血,有一定的肺保护作用 ...
林柏松   +4 more
doaj  

The Study of the Differentiation-inducing Effect of Tachyplesin in Combination with n-Sodium Butyrate , GinsenosideRg1 on Human Gastric Adenocarcinoma BGC-823 Cells [PDF]

open access: yes, 2001
本研究应用从中国鲎血细胞内分离提纯的小分子肽——鲎素以及化学诱导分化物正丁酸钠和中药有效成分人参皂甙Rg1单独和联合处理人胃腺癌BGC-823细胞,比较鉴定鲎素与正丁酸钠、人参皂甙Rg1对BGC-823细胞的生物学效应及其作用性质,并进一步探讨鲎素及其诱导分化物组合对胃癌细胞的诱导分化效果。 实验结果表明,2.0μg/ml鲎素,2.0mmol/l正丁酸钠及50μg/ml人参皂甙Rg1均能抑制BGC-823细胞的增殖作用,并使细胞阻滞于G0/G1期,鲎素与正丁酸钠作用较强,而人参皂甙Rg1的作用较弱。1 ...
王永煜
core  

Inhibitory Mechanism of Aloe Emodin on α-Glucosidase and Synergistic Effect with Acarbose [PDF]

open access: yes
In order to investigate the interaction between aloe emodin and α-glucosidase, enzyme kinetics, ultraviolet (UV) spectroscopy, infrared (IR) spectroscopy and fluorescence spectroscopy were employed to investigate the inhibitory mechanism of aloe emodin ...
QIN Chaofeng, LI Jiao, HAO Jingwen, BU Yaqin, LI Sheng, CHEN Naidong
core   +1 more source

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