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智慧社区人本化转型的行动框架与策略--基于“人-技术-空间-平台”四维互嵌视角 被引量:2
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作者 王江 王健 《规划师》 北大核心 2024年第1期50-59,共10页
智慧社区作为构成智慧城市的基本单元及我国城市精细化治理的“最后一公里”,其建设和治理模式的人本化转型,对于践行人民城市重要理念、促进城镇空间人性化设计、推进治理体系与治理能力现代化具有重要意义。结合文献资料、政策法规和... 智慧社区作为构成智慧城市的基本单元及我国城市精细化治理的“最后一公里”,其建设和治理模式的人本化转型,对于践行人民城市重要理念、促进城镇空间人性化设计、推进治理体系与治理能力现代化具有重要意义。结合文献资料、政策法规和城镇发展状况,梳理智慧社区建设发展演进脉络,厘清影响智慧社区人本化转型的“人”“技术”“空间”“平台”等4种因素,从参与主体、技术支撑、空间载体、治理平台等4个维度构建智慧社区人本化转型的理论框架,以期为我国智慧社区高质量建设提供理论支撑。 展开更多
关键词 智慧社区 人本化 技术 空间 平台 转型
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论人类命运共同体视域下的文化与文明--兼榷亨廷顿“文明冲突”观
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作者 刘京希 《四川大学学报(哲学社会科学版)》 北大核心 2024年第4期15-27,205,共14页
作为人类共同价值准则的文明,发端自多元经验文化而又反哺之。文化乃文明的源泉,文明是文化的归宿。二者往复映射,构成互为成就的有机共生关系。不同文化之间互为交叠和印证的普遍性价值,即是人类共同文明的基因与扩展性文明秩序的基质... 作为人类共同价值准则的文明,发端自多元经验文化而又反哺之。文化乃文明的源泉,文明是文化的归宿。二者往复映射,构成互为成就的有机共生关系。不同文化之间互为交叠和印证的普遍性价值,即是人类共同文明的基因与扩展性文明秩序的基质。因此,人类赖以扩大共识的更大可能性,存在于文明层面而非文化层面。以文化与文明之“双重自觉”理念视之,人类命运共同体的构建,当以文化为用、文明为本。在无可回避的全球化时代,立足于人类共同文明视域,以普遍性价值理念观照世界文明发展进程,为人类命运共同体的建构提供新的理念养料;并以本体性思维介入文明进程,将人类共同文明之普遍法则抬升至超验信仰境界,使之成为人类社会的共同价值追寻,进而化解特殊性文化与普遍性文明之间的抵牾,无疑是人类命运共同体建构所无以回避的巨大挑战。 展开更多
关键词 文化 文明 文化为用 文明为本 普遍性价值 人类命运共同体
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南美洲Oriente盆地斜坡带W区块构造-岩性复合油藏成藏模式及有利区预测
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作者 马文杰 王景春 +5 位作者 田作基 马中振 万学鹏 林金逞 许翔麟 周玉冰 《岩性油气藏》 CAS CSCD 北大核心 2023年第6期29-36,共8页
通过岩心观察、地震解释、储层反演、原油地化分析、油源对比、油气运移示踪分析等对南美洲Oriente盆地斜坡带W区块典型构造-岩性复合油藏的成藏规律进行了分析,并指出了下一步的有利勘探方向。研究结果表明:①Oriente盆地斜坡带W区块构... 通过岩心观察、地震解释、储层反演、原油地化分析、油源对比、油气运移示踪分析等对南美洲Oriente盆地斜坡带W区块典型构造-岩性复合油藏的成藏规律进行了分析,并指出了下一步的有利勘探方向。研究结果表明:①Oriente盆地斜坡带W区块构造-岩性复合油藏整体为西倾和西南倾单斜构造,局部发育鼻隆,油藏目的层为白垩系Napo组M1ss段,砂体呈北西—南东向,储层厚度大、物性好。②研究区河口湾砂坝控制有利储层分布,W区块平稳的西倾和西南倾单斜鼻隆构造背景与NW—SE走向的泥岩条带配合控制圈闭形成,有效油气运移通道的空间展布控制成藏。③构造-岩性油藏为三阶段成藏模式,早期常规原油充注,中期原油遭受降解,晚期常规原油混合降稠。④W区块南部地区2个泥岩条带的西南部位是W区块构造-岩性复合圈闭的有利发育区。 展开更多
关键词 构造-岩性复合油藏 成藏模式 斜坡带 白垩系 前陆盆地 oriente盆地 南美洲
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Evaluation of Human-Oriented Transport in City Hall Transportation Projects Approach to Sustainable Case Study of the Kerman City Hall
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作者 Sedigheh Meimandi Parizi Abdolreza Kazeminiya 《Journal of Building Construction and Planning Research》 2015年第3期149-161,共13页
In Iran, the implementation of public transport and non-motorized transport infrastructure warrants the need to allocate adequate funding from the state and city hall. In this regard, in city hall development plans (t... In Iran, the implementation of public transport and non-motorized transport infrastructure warrants the need to allocate adequate funding from the state and city hall. In this regard, in city hall development plans (the format approved by the Ministry of Interior), urban transportation plan has been one of the ten chapters. The purpose of this paper is to survey the content and documents related to the allocation of funds to the traffic sector in the former development program of Kerman city hall and by the way, assess the role of human-oriented transportation among the plans and programs of Kerman city hall. Therefore, the amount of funds allocated to the transport sector in Kerman city hall development plans and programs has been investigated for a period of six years (2009-2014). Comparative analysis method is used for surveying the position and the importance of sustainable transport among planners and urban management. Kerman is the historical city and the most important city in the South East of Iran. Due to uncontrolled population growth in recent decades, a large number of cars added to its pathways, so it is required to have a plan of sustainable transportation programs to be evaluated traffic. Results of the analysis indicate that the budget allocated to the development of the vehicle-oriented transportation is much more than human-oriented transportation and in fact, human-oriented systems of transport such as walking and cycling are considered less than the others. Also in the old fabric of Kerman city that has formed on the basis of the human-oriented transportation, the lowest level of funding is intended to regulate transportation. With this description, it is clear that achieving sustainable development and human-oriented in urban transport sector, it fundamentally needs paradigm shift in urban transport development and revision in the attitudes of managers and planners, and in the meantime it is necessary to correct the programming cycle of urban development along with review of the allocating funds mechanism and to define projects in various sectors. Urban and transport planners can conduct municipalities projects with costing not too much and hereto provide non-motorized styles in the field of urban transport networks. If only allocated apart of the overall funding for roads, highways and city streets to the development of public transport and non-motorized transportation options, the impact would be very high. 展开更多
关键词 SUSTAINABLE TRANSPORT human-orientED Transportation Non-Motorized TRANSPORT The Funding of CITY HALL Programs
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Altered profiles of nuclear matrix proteins during the differentiation of human gastric mucous adenocarcinoma MGc80-3 cells 被引量:13
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作者 Chun-Hong Zhao Qi-Fu Li 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第30期4628-4633,共6页
AIM: To find and identify specific nuclear matrix proteins associated with proliferation and differentiation of carcinoma cells, which will be potential markers for cancer diagnosis and targets in cancer therapy. MET... AIM: To find and identify specific nuclear matrix proteins associated with proliferation and differentiation of carcinoma cells, which will be potential markers for cancer diagnosis and targets in cancer therapy. METHODS: Nuclear matrix proteins were selectively extracted from MGcS0-3 cells treated with or without hexamethylamine bisacetamide (HMBA), and subjected to 2-D gel electrophoresis. The resulted protein patterns were analyzed by Melanie software. Spots of nuclear matrix proteins differentially expressed were excised and subjected to in situ digestion with trypsin. Peptide masses were obtained by matrix-assisted laser-desorption/ ionization time of flight mass spectrometry (MALDI-TOFMS) analysis and submitted for database searching using Mascot tool. RESULTS: The MGc80-3 cells were induced into differentiation by HMBA. There were 22 protein spots which changed remarkably in the nuclear matrix, from differentiation of MGcS0-3 cells compared to control. Eleven of which were identified. Seven proteinsactin, prohibitin, porin 31HL, heterogeneous nuclear dbonucleoprotein A2/B1, vimentin, ATP synthase, and heat shock protein 60 were downregulated, whereas three proteins - heat shock protein gp96, heat shock protein 90-beta, and valosin-containing protein were upregulated, and the oxygen-regulated protein was only found in the differentiated MGc80-3 cells. CONCLUSION: The induced differentiation of carcinoma cells is accompanied by the changes of nuclear matrix proteins. Further characterization of those proteins will show the mechanism of cellular proliferation and differentiation, as well as cancer differentiation. 展开更多
关键词 Nuclear matrix proteins Cell differentiation human gastric mucous adenocarcinoma MGc80-3 Hexamethylamine bisacetamide
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Neuroprotective effects of human telomerase reverse transcriptase on beta-amyloid fragment 25-35-treated human embryonic cortical neurons 被引量:3
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作者 Lingping Kong Lingzhi Wu +2 位作者 Jie Zhang Yaping Liao Huaqiao Wang 《Neural Regeneration Research》 SCIE CAS CSCD 2009年第6期405-412,共8页
BACKGROUND: Numerous current studies have suggested that human telomerase reverse transcriptase (hTERT) gene has neuroprotective effects and can inhibit apoptosis induced by various cytotoxic stresses; however, the... BACKGROUND: Numerous current studies have suggested that human telomerase reverse transcriptase (hTERT) gene has neuroprotective effects and can inhibit apoptosis induced by various cytotoxic stresses; however, the mechanism of action remains unknown. OBJECTIVE: To evaluate the neuroprotective effects and possible mechanism of action of hTERT gene transfection in human embryonic cortical neurons treated with beta-amyloid fragment 25-35 (AI325-35). DESIGN, TIME AND SETTING: The randomized, controlled and molecular biological studies were performed at the Department of Anatomy and Brain Research, Zhongshan School of Medicine, Sun Yat-sen University, China, from September 2005 to June 2008. MATERIALS: AdEasy-1 Expression System was gifted by Professor Guoquan Gao from Sun Yat-Sen University, China. Human cortical neurons were derived from 12-20 week old aborted fetuses, obtained from the Guangzhou Maternal and Child Health Hospital, China. Mouse anti-Odk5 and mouse anti-p16 monoclonal antibodies (Lab Vision, USA), and mouse anti-hTERT monoclonal antibody (Epitomics, USA), were used in this study. METHODS: (1) Recombinant adenovirus vectors, encoding hTERT (Ad-hTERT) and green fluorescent protein (Ad-GFP), were constructed using the AdEasy-1 Expression System. Human embryonic cortical neurons in the Ad-hTERT group were transfected with Ad-hTERT for 1-21 days. Likewise, human embryonic cortical neurons in the Ad-GFP group were transfected with Ad-GFP for 1-21 days. Human embryonic cortical neurons in the control group were cultured as normal. (2) Human embryonic cortical neurons in the Ad-hTERT group were treated with 10 pmol/L Aβ25-35 for 24 hours. Normal human embryonic cortical neurons treated with 10 pmol/Lβ25.35 for 24 hours served as a model group. Human embryonic cortical neurons in the Ad-GFP and control groups were not treated with Aβ25-35. MAIN OUTCOME MEASURES: Expression of hTERT in human embryonic cortical neurons was evaluated by immunocytochemical staining and Western blot assay. Telomerase activity was measured using a PCR-based telomeric repeat amplification protocol (TRAP) ELISA kit. Neural activity in human embryonic cortical neurons was examined by MTT assay; apoptosis was measured using TUNEL assay; and Cdk5 and p16 protein expressions were measured by Western blot. RESULTS: Expression of hTERT protein was significantly increased and peaked at day 3 post-transfection in the Ad-hTERT group. No hTERT expression was detected in the Ad-GFP and control groups. Telomerase activity was significantly greater in the Ad-hTERT group compared with the Ad-GFP and control groups (P 〈 0.01). Compared with the control group, cell activity was significantly decreased (P 〈 0.05), and cell apoptotic rate, Cdk5 and p16 expression were significantly increased (P 〈 0.01) in the model group. Compared with the model group, cell activity was increased in the Ad-hTERT group, and peaked at day 3 post-transfection (P 〈 0.05). Neuroprotective effects also peaked at day 3 post-transfection; and the apoptotic rate, Cdk5 and p16 expression significantly decreased (P 〈 0.01). CONCLUSION: Expression of hTERT in human embryonic cortical neurons can relieve Aβ25-35-induced neuronal apoptosis. The possible mechanism by which hTERT produces these neuroprotective effects may be associated with inhibition of Cdk5 and p16 expression. 展开更多
关键词 human telomerase reverse transcriptase cortical neuron human embryo Alzheimer's disease beta-amyloid fragment 25-35 CDK5 P16
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Development of a sensitive and rapid method for quantitation of (S)-(-)- and (R)-(+)-metoprolol in human plasma by chiral LC–ESI–MS/MS 被引量:3
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作者 Primal Sharma Pritesh Contractor +2 位作者 Swati Guttikar Daxesh P.Patel Pranav S.Shrivastav 《Journal of Pharmaceutical Analysis》 SCIE CAS 2014年第1期63-79,共17页
A selective, sensitive and high throughput liquid chromatography-tandem mass spectro-metry (LC-ESI-MS/MS) method has been developed for separation and quantification of metoprolol enantiomers on a chiral Lux Amylose... A selective, sensitive and high throughput liquid chromatography-tandem mass spectro-metry (LC-ESI-MS/MS) method has been developed for separation and quantification of metoprolol enantiomers on a chiral Lux Amylose-2 (250 mm&#215;4.6 mm, 5 mm) column. Solid phase extraction of (S)-(-)- and (R)-(t)-metoprolol and rac-metoprolol-d6 as an internal standard (IS) was achieved on Lichrosep DVB HL cartridges employing 200 mL human plasma. Both the analytes were chromatographically separated with a resolution factor of 2.24 using 15 mM ammonium acetate in water, pH 5.0 and 0.1% (v/v) diethyl amine in acetonitrile (50:50, v/v) as the mobile phase within 7.0 min. The precursor-product ion transitions for the enantiomers and IS were monitored in the multiple reaction monitoring and positive ionization mode. The method was validated over the concentration range of 0.500-500 ng/mL for both the enantiomers. Matrix effect was assessed by post-column analyte infusion experiment and the mean extraction recovery was greater than 94.0% for both the enantiomers at all quality control levels. The stability of analytes was evaluated in plasma and whole blood under different storage conditions. The method was successfully applied to a clinical study in 14 healthy volunteers after oral administration of 200 mg metoprolol tablet under fasting conditions. The assay reproducibility is shown by reanalysis of 68 incurred samples. The suitability of the developed method was assessed in comparison with&amp;nbsp;different chromatographic methods developed for stereoselective analysis of metoprolol in biological matrices. 展开更多
关键词 S---metoprolol R-(+)-metoprolol Chiral column Chromatographicseparation LC-ESI-MS/MS human plasma
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Transparent and anti-fogging AlPO_(4)-5 films constructed by oblique oriented nano-flake crystals 被引量:1
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作者 Fei Tong Jie Gong +2 位作者 Liang Yu Ming Li Lixiong Zhang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2022年第4期332-340,共9页
In the present work,transparent and anti-fogging AlPO_(4)-5 films were prepared on glass substrates using a novel developed process.The process entails a simple in-situ sol–gel followed by vapor phase transport.The i... In the present work,transparent and anti-fogging AlPO_(4)-5 films were prepared on glass substrates using a novel developed process.The process entails a simple in-situ sol–gel followed by vapor phase transport.The in-situ sol–gel process was implemented by coating the precursor sols for the synthesis of AlPO4-5 on the glass substrates successively using the spin-coating method.The films and powders scribed from the films were characterized by X-Ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscope(SEM),atomic force microscope(AFM),X-ray photoelectron spectroscopy and transmission electron microscope(TEM).The unique films were composed of oblique oriented nanoflake AlPO_(4)-5 crystals with the thickness of about 20 nm.The formation of nano-flake crystals can be ascribed to the high concentration of the precursors,resulting in the formation of a supersaturation system.The obtained films showed high antifogging performance due to the superhydrophilicity with a water contact angle of lower than 1.0°.The silicone oil contact angle was also low about 8.2°.In addition,heteroatom-substituted AlPO_(4)-5 films showing different colors can be obtained easily by simply adding transition metal ions in the phosphate acid solution during the preparation that can extend the application of the method for different coating demand. 展开更多
关键词 AlPO_(4)-5 thin film oriented film TRANSPARENT SUPERHYDROPHILICITY ANTI-FOGGING
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Tracking Human Poses with Head Orientation Estimation 被引量:3
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作者 TIAN Jinglan WANG Zhengyuan +1 位作者 LI Ling LIU Wanquan 《Instrumentation》 2017年第3期40-46,共7页
Lots of progress has been made recently on 2 D human pose tracking with tracking-by-detection approaches. However,several challenges still remain in this area which is due to self-occlusions and the confusion between ... Lots of progress has been made recently on 2 D human pose tracking with tracking-by-detection approaches. However,several challenges still remain in this area which is due to self-occlusions and the confusion between the left and right limbs during tracking. In this work,a head orientation detection step is introduced into the tracking framework to serve as a complementary tool to assist human pose estimation. With the face orientation determined,the system can decide whether the left or right side of the human body is exactly visible and infer the state of the symmetric counterpart. By granting a higher priority for the completely visible side,the system can avoid double counting to a great extent when inferring body poses. The proposed framework is evaluated on the HumanEva dataset. The results show that it largely reduces the occurrence of double counting and distinguishes the left and right sides consistently. 展开更多
关键词 human Pose Tracking Head orientation Tracking by Detection
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THE DIFFERENTIATION OF HUMAN GASTRIC ADENOCAR-CINOMA CELL LINE MGc80-3 INDUCED BY DIBUTYRYL cAMP IN VITRO 被引量:2
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作者 李祺福 汪德耀 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1991年第1期7-13,共7页
For providing some experimental basis in establishing malignant phenotypic reversed indexes of gastric carcinoma cells, human gastric adenocar-cinoma cell line MGc80-3 was induced by dBcAMP in vitro to appraise the ef... For providing some experimental basis in establishing malignant phenotypic reversed indexes of gastric carcinoma cells, human gastric adenocar-cinoma cell line MGc80-3 was induced by dBcAMP in vitro to appraise the effect of gastric carcinoma cell differentiation by chemical inducers.Under light microscope, MGc80-3 cells, after treated with 1 mM dBcAMP, tended to be flat and disperse, and their volume gradually enlarged, with their uncleus relatively smaller and their shape rather regular. Morphological changes, like norma differentiated epithelial cells, were observed. The cells attached firmly, grew slowly, their growth curve showed inhibitory rate amounted to 52.87%, and cellular division exponent displayed their peak value 1.5 times less than that of MGc80-3 cells. It was clear that dBcAMP could effectively inhibit the multiplication activity of MGc80-3 cells. After dBcAMP treatment, remarkable changes of cell surface charges was indicated by cell electrophoresis, the ratio dropped to 3.043 from 3.988, and their re-tardant ratio reached up to 31.2%. cAMP content in cells after this treatment, detected by cAMP and cGMP radioimmunoassay, was enhanced by 2.42 times, and cAMP/cGMP ratio, by 1.73 times. Thus, cAMP level within MGc80-3 cells was raised obviously by dBcAMP. Heterotransplantation experiments showed that tuntorigenic rate of MGc80-5 cells (transplanted subcutaneously to BALB/c mice) amounted to 100%, and that of the cells after this treatment was only 5.6%. Their tumorigenic ability was extremely reduced.These results confirmed that dBcAMP was able to change malignant phenotypic characteristics of MGc80-3 cells and produce a reversed alteration: Thus, it has a remarkable inductive effect in differentiating gastric carcinoma cells. All these characteristics were also considered as the reference indexes in appraising reversed effect for the homologous cancer cells. 展开更多
关键词 THE DIFFERENTIATION OF human GASTRIC ADENOCAR-CINOMA CELL LINE MGc80-3 INDUCED BY DIBUTYRYL cAMP IN VITRO
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circ_0003204 regulates the osteogenic differentiation of human adipose-derived stem cells via miR-370-3p/HDAC4 axis 被引量:1
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作者 Liyuan Yu Kai Xia +5 位作者 Jing Zhou Zhiai Hu Xing Yin Chenchen Zhou Shujuan Zou Jun Liu 《International Journal of Oral Science》 SCIE CAS CSCD 2022年第3期360-370,共11页
Human adipose-derived stem cells(hASCs)are a promising cell type for bone tissue regeneration.Circular RNAs(circRNAs)have been shown to play a critical role in regulating various cell differentiation and involve in me... Human adipose-derived stem cells(hASCs)are a promising cell type for bone tissue regeneration.Circular RNAs(circRNAs)have been shown to play a critical role in regulating various cell differentiation and involve in mesenchymal stem cell osteogenesis.However,how circRNAs regulate hASCs in osteogenesis is still unclear.Herein,we found circ_0003204 was significantly downregulated during osteogenic differentiation of hASCs.Knockdown of circ_0003204 by si RNA or overexpression by lentivirus confirmed circ_0003204 could negatively regulate the osteogenic differentiation of hASCs.We performed dual-luciferase reporting assay and rescue experiments to verify circ_0003204 regulated osteogenic differentiation via sponging miR-370-3p.We predicted and confirmed that miR-370-3p had targets in the 3′-UTR of HDAC4 m RNA.The following rescue experiments indicated that circ_0003204 regulated the osteogenic differentiation of hASCs via miR-370-3p/HDAC4 axis.Subsequent in vivo experiments showed the silencing of circ_0003204 increased the bone formation and promoted the expression of osteogenic-related proteins in a mouse bone defect model,while overexpression of circ_0003204 inhibited bone defect repair.Our findings indicated that circ_0003204 might be a promising target to promote the efficacy of hASCs in repairing bone defects. 展开更多
关键词 regulates the osteogenic differentiation of human adipose-derived stem cells via miR-370-3p/HDAC4 axis MIR
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Relationship between chromosome behaviour and stability of human-mouse and human-(human-mouse)hvbridomas
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作者 梁喆 王德堂 金伯泉 《Journal of Medical Colleges of PLA(China)》 CAS 1993年第2期114-119,共6页
Chromosomes in human-mouse and human-(human-mouse)hybridomas wereanalysed by G-banding methods.It was found that most human chromosomes,exceptNo.13 and X,Y,were retained.The frequencies of chromosomes No.1,3,4,5,6,17,... Chromosomes in human-mouse and human-(human-mouse)hybridomas wereanalysed by G-banding methods.It was found that most human chromosomes,exceptNo.13 and X,Y,were retained.The frequencies of chromosomes No.1,3,4,5,6,17,19,21 and 22 were higher than those of other chromosomes in each hybridoma clone.The myeloma cell lines X63-Ag8.653 and SHM-D33 were also analysed.The morphologyof marker chromosomes was apparently different between hybridomas.There were 7 kindsof marker chromosomes in human-mouse hybridomas and 16 kinds of markerchromosomes in human-(human-mouse)hybridomas.Clones that retained humanchromosome No.1 were more stable and clones that did not retain human chromosomeNo.14 were still capable of secreting human immunoglobulin.Clones that retained humanchromosome No.2 did not secret human k light chain McAb while clones that retainedhuman chromosomes No.2 and No.22 only secreted λ light chain. 展开更多
关键词 HYBRIDOMAS IMMUNOGLOBULINS GIEMSA STAINING chromosomes human 1-3 chromosomes human 13-15 chomosomes human 21-22
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Auto-measuring System of 3-Dimensional Human Body
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作者 李勇 尚保平 +1 位作者 付小莉 尚会超 《Journal of Donghua University(English Edition)》 EI CAS 2001年第3期110-112,共3页
To realize the automation of fashion industry measuring,designing and manufacturing, the auto-measurement of 3D size of human body is of great importance. The auto measurement system of 3D human body based on Charge C... To realize the automation of fashion industry measuring,designing and manufacturing, the auto-measurement of 3D size of human body is of great importance. The auto measurement system of 3D human body based on Charge Coupled Devices (CCD) and infrared sensors is presented in this paper. The system can measure the bare size of human body that excludes the effect of clothing quickly and accurately. 展开更多
关键词 3- D measurement human BODY measurement.
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Photo-polymerization of liquid crystalline monomer in oriented liquid crystal phase
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作者 Rui Bao Min Pan Jin Jun Qiu He Qing Tang Cheng Mei Liu 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第11期1330-1333,共4页
A new approach to synthesize liquid crystalline polymer with narrow polydispersity index(PDI) was developed.Photopolymerization of 4-cyanophenyl-4'-(6-acryloyloxyhexyloxy)benzoate(RM23) in nematic liquid crysta... A new approach to synthesize liquid crystalline polymer with narrow polydispersity index(PDI) was developed.Photopolymerization of 4-cyanophenyl-4'-(6-acryloyloxyhexyloxy)benzoate(RM23) in nematic liquid crystals with macroscopic orientation was studied.The effects of the monomer concentration on the molecular weight and PDI of the resulting polymers were studied through gel permeation chromatography(GPC) and polarized optical microscopy.The low PDI of 1.19 and 1.22 was obtained in the reverse and normal modes,respectively.The PDI and molecular weight increased with monomer concentration. 展开更多
关键词 PHOTO-POLYMERIZATION 4-Cyanophenyl-4'-(6-acryloyloxyhexyloxy)benzoate Liquid crystal Macroscopic orientation Synthesis
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CHEMOSENSITIVITY OF MGc80-3 HUMAN GASTRIC ADENOCARCINOMA CELLS AND ITS CLINICAL SIGNIFICANCE
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作者 李学汤 林晨 李珮茵 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1990年第1期12-15,共4页
In the present study, the chemosensitivity of MGc80-3 human gastric adenocarcinoma cells was determined by means of colony-forming assay and the in vitro activities of 10 anticancer drugs were examined on the basis of... In the present study, the chemosensitivity of MGc80-3 human gastric adenocarcinoma cells was determined by means of colony-forming assay and the in vitro activities of 10 anticancer drugs were examined on the basis of the clinically achievable peak plasma drug concentration. The results showed that MGc80-3 cells were most sensitive to mitomyc'n C, adriamycin and 5-fluorouracil, being consistent with the response noted in clinical gastric cancer. This cell line may retain its original drug sensitivity and may be useful in screening for new compounds with activity against this disease. 展开更多
关键词 CHEMOSENSITIVITY OF MGc80-3 human GASTRIC ADENOCARCINOMA CELLS AND ITS CLINICAL SIGNIFICANCE PYM MTX ID BCNU
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Effects on Cell Viability and on Apoptosis in Tumoral(MCF-7)and in Normal(MCF10A)Epithelial Breast Cells after Human Chorionic Gonadotropin and Derivated-Angiotensin Peptides Treatments 被引量:1
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作者 Silvana Aparecida Alves Correa de Noronha Werica Bernardo +4 位作者 Alexandre Jesus Barros Clovis Ryuichi Nakaie Suma Imura Shimuta Ismael Dale Cotrim Guerreiro da Silva Samuel Marcos Ribeiro de Noronha 《Journal of Cancer Therapy》 2013年第7期65-69,共5页
Angiotensin-(1 - 7) [Ang-(1 - 7)] is an endogenous heptapeptide hormone of the renin-angiotensin system that has antiproliferative properties. The aim of this work was to evaluate the anti-proliferative and pro-apopto... Angiotensin-(1 - 7) [Ang-(1 - 7)] is an endogenous heptapeptide hormone of the renin-angiotensin system that has antiproliferative properties. The aim of this work was to evaluate the anti-proliferative and pro-apoptotic properties of Ang-(1 - 7) and of Ang-(1 - 7)-substituents 9-fluorenylmethyloxycarbonyl (Fmoc) e Ang II-derivatives containing the TOAC (2,2,6,6-tetramethylpiperidine-N-oxyl-4-amino-4-carboxylic acid) in normal (MCF10A) and in tumoral (MCF7) epithelial mammary cell lines. Both cell lines received an hCG and angiotensin peptides 24-hour treatment, in combination or alone followed by cell viability, apoptosis and cell cycle assays performed by flow cytometer (GUAVA). After hCG, Ang-(1 - 7), hCG + Ang-(1 - 7) and hCG + Ang-(1 - 7)-Fmoc treatments, MCF7 displayed cell viability decrease and mid-apoptosis increase. We also observed cell viability decrease in MCF10A after Ang-(1 - 7), Ang-(1 - 7) Fmoc and hCG + AngII Toac treatments. These cells had an increase in late apoptosis and necrosis after AngII Toac, hCG + Ang-(1 - 7) and hCG + Ang-(1 - 7)-Fmoc treatments. Regarding the cell cycle analysis, we did not observed any changes in cell cycle phases. In summary, cell viability was decreased and apoptosis (initial, mid and late) was increased after hCG and/or Ang-(1 - 7) peptides treatments. These results point out hCG and Ang-(1 - 7) as effective compounds to inhibit cell proliferation, since they decrease cell viability and increase apoptosis in both normal and in tumoral breast cells, being the effect more pronounced in the tumoral cell line. Our results support the idea of investigating more closely the putative use of these compounds as novel therapeutic agents for breast cancer. 展开更多
关键词 Angiotensin II Angiotensin 1-7 Angiotensin II Type 1 Receptor(AT1R) Breast Cancer APOPTOSIS human Chorionic Gonadotropin
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Effects of 4-(3-Chloro-Benzyl)-6,7-Dimethoxy-Quinazoline on Kinetics of P120-Catenin and Periplakin in Human Buccal Mucosa Squamous Carcinoma Cell Line
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作者 Isao Tamura Aiko Kamada +3 位作者 Seiji Goda Yoshihiro Yoshikawa Eisuke Domae Takashi Ikeo 《Open Journal of Stomatology》 2014年第5期249-257,共9页
In order to detect molecular markers for the epidermal growth factor inhibitor 4-(3-chloro-benzyl)- 6,7-dimethoxy-quinazoline (tyrphostin), we investigated the kinetics of p120-catenin and periplakin in the human bucc... In order to detect molecular markers for the epidermal growth factor inhibitor 4-(3-chloro-benzyl)- 6,7-dimethoxy-quinazoline (tyrphostin), we investigated the kinetics of p120-catenin and periplakin in the human buccal mucosa squamous cancer cell line BICR 10 treated with 3 nM tyrphostin. Growth of BICR 10 cells was inhibited by treatment with tyrphostin. Although changes were not observed in the expression of EGFR and p120-catenin, expression of Akt, Src and periplakin in BICR 10 treated with 3 nM tyrphostin tended to decrease. In addition, phosphorylation of EGFR, Akt and Src was inhibited by treatment with tyrphostin. On immunocytochemical staining, immunoreactions with phosphorylated EGFR, phosphorylated Akt and phosphorylated p120-catenin were weak in BICR 10 treated with tyrphostin. There was a slight immunocy to chemical reaction to periplakin in BICR 10 cells induced by tyrphostin. In conclusion, the decrease in phosphorylation in EGFR and p120-catenin by tyrphostin, following the decrease in Src or Akt phosphorylation, may inhibit expression of several growth factors associated with the proliferation and migration of cancer cells. 展开更多
关键词 4-(3-Chloro-Benzyl)-6 7-Dimethoxy-Quinazoline human Buccal Mucosa Squamous Cancer Cell Line P120-CATENIN Periplakin
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The Preparation for Human B7-2 and DC Vaccines and their Roles in Anti-tumor Immunity Against Esophageal CancerIn Vitro
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作者 Jing LU Jun ZHAO Guo-Qiang ZHAO Hong-Yan YANG You-Tian HUANGMing-Yao ZHAO Zi-Ming DONG(Department of Pathophysiology, Medical College of Zhengzhou University, Zhengzhou 450052,China) 《生物医学工程学杂志》 EI CAS CSCD 北大核心 2005年第S1期111-112,共2页
关键词 DC The Preparation for human B7-2 and DC Vaccines and their Roles in Anti-tumor Immunity Against Esophageal CancerIn Vitro APC
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Return to Human Orientation:Route for China to Secure Human Rights in 21st Century
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作者 LI SHAOXIAN & WEI LIANG 《The Journal of Human Rights》 2011年第1期17-20,共4页
The 30 years of reform and opening up in China have given birth to the fast economic development, the ever-changing look of the society and the great changes in the modernization construction that has caught the eyeba... The 30 years of reform and opening up in China have given birth to the fast economic development, the ever-changing look of the society and the great changes in the modernization construction that has caught the eyeballs from the entire world. 展开更多
关键词 Return to human orientation
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International Symposium On Oriental Culture and Human Rights Development Held in Beijing
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《The Journal of Human Rights》 2002年第5期37-38,共2页
The International Symposium on Oriental Culture and Human Rights Development was successfully held by the China Society for Human Rights Studies (CSHRS) and China Foundation lot Human Rights Development (CFHRD) in Bei... The International Symposium on Oriental Culture and Human Rights Development was successfully held by the China Society for Human Rights Studies (CSHRS) and China Foundation lot Human Rights Development (CFHRD) in Beijing on October 29-31, 2002. The Symposium focused on the following three topics: the universality of human rights and cultural diversity, the oriental and western culture and human rights, and culture and human rights in the globalization process. The three-day Symposium attracted more than 70 scholars, experts, officials and parliamentarians from 26 countries, including Australia, China, Cuba, Ethiopia, India, Indonesia, Iran, Japan, Republic of 展开更多
关键词 International Symposium On oriental Culture and human Rights Development Held in Beijing
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