维普中文期刊产品整合服务
43篇 您的检索式:作者名="College B"
    题名 作者 年代 出处 被引量
1Synthesis of core-shell acrylic-polyurethane hybrid latex as binder of aqueous pigment inks for digital inkjet printingJingfang Zhang a,Xuefeng Li a,Xinhao Shi a,Mei Hua a,Xingping Zhou b,Xiaqin Wang a,a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China b College of Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China 2012Progress in Natural Science:Materials International2012,22,1:31
2Structure and function of aggrecan显示文摘Aggrecan is the major proteoglycan in the articular cartilage. This molecule is important in the proper functioning of articular cartilage because it provides a hydrated gel structure (via its interaction with hyaluronan and link protein) that endows the cartilage with load-bearing properties. It is also crucial in chondroskeletal morphogenesis during development. Aggrecan is a multimodular molecule expressed by chondrocytes. Its core protein is composed of three globular domains (G1, G2, and G3) and a large extended region (CS) between G2 and G3 for glycosaminoglycan chain attachment. G1 comprises the amino terminus of the core protein. This domain has the same structural motif as link protein. Functionally, the G1 domain interacts with hyaluronan acid and link protein, forming stable ternary complexes in the extracellular matrix. G2 is homologous to the tandem repeats of G1 and of link protein and is involved in product processing. G3 makes up the carboxyl terminus of the core protein. It enhances glycosaminoglycan modification and product secretion. Aggrecan plays an important role in mediating chondrocyte-chondrocyte and chondrocyte-matrix interactions through its ability to bind hyaluronan.CHRIS KIANI, LIWEN CHEN, YAO JIONG WU, ALBERT J YEE, BURTON B YANG, Sunnybrook and Women’s College Health Sciences Centre and Department of Laboratory Medicine and Patobiology, 2 Department of Surgeny, Faculty of Medicine, University of Toronto, Canada 2002Cell Research2002,12,1:27
3Research progress on electrical signals in higher plants显示文摘This review introduces the characteristics of electrical signals in higher plants and their corresponding physiological significance, and describes in detail the impact of environmental factors (e.g. light and temperature) on the electrical potential of the plants. Also, we evaluate the measurement techniques used for electrical signals in plants, including intracellular measurement, extracellular measurement, measurement of the ion channel based on the patch-clamp technique and on the non-invasive microelectrode vibrating probe technique. We also give a brief review of the applications of these methods for investigating electrical signals in plants. The ionic mechanism of electrical activity in plants is then discussed in terms of environmental response in higher plants, and this is used to provide a theoretical basis for quantitative description of the electrical signals in plants. A model for interpretation of the electrical signal mechanisms in higher plants is discussed, but further experiments are required for the verification of this model.Xiaofei Yana, Zhongyi Wang a, Lan Huang a, Cheng Wang b, Ruifeng Hou b, Zhilong Xu b, Xiaojun Qiao b a College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China b National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China 2009Progress in Natural Science:Materials International2009,19,5:13
4Ruthenium(Ⅲ) chloride as an efficient catalyst for the synthesis of perimidine derivatives under mild conditions显示文摘Various biologically important perimidine derivatives have been synthesized efficiently from various ketones and naphthalene- 1,8-diamine by using a catalytic amount of RuCl3(1 mol%).This method is a very simple and high yielding reaction for the synthesis of perimidine derivatives.Jing Zhang~a Song Lin Zhang~(a,b,*) Jun Min Zhang~a a Key Laboratory of Organic Synthesis of Jiangsu Province,College of Chemistry and Chemical Engineering,Dushu Lake Campus,Suzhou University,Suzhou 215123,China b College of Chemistry and Environmental Science,Henan Normal University,Xinxiang 453007,China 2007Chinese Chemical Letters2007,18,9:5
5Ribosome Biogenesis Factor Bmsl-like Is Essential for Liver Development in Zebrafish显示文摘Ribosome biogenesis in the nucleolus requires numerous nucleolar proteins and small non-coding RNAs.Among them is ribosome biogenesis factor Bmsl,which is highly conserved from yeast to human.In yeast,Bmsl initiates ribosome biogenesis through recruiting Rcll to pre-ribosomes.However,little is known about the biological function of Bmsl in vertebrates.Here we report that Bmsl plays an essential role in zebrafish liver development.We identified a zebrafish bms1l^(sq163) mutant which carries a T to A mutation in the gene bmsl-like(bms1l).This mutation results in L^(152) to Q^(152) substitution in a GTPase motif in Bmsll.Surprisingly,bmsll^(sq163) mutation confers hypoplasia specifically in the liver,exocrine pancreas and intestine after 3 days post-fertilization(dpf).Consistent with the bmsll^(sq163) mutant phenotypes,whole-mount in situ hybridization(WISH) on wild type embryos showed that bmsll transcripts are abundant in the entire digestive tract and its accessory organs.Immunostaining for phospho-Histone 3(P-H3) and TUNEL assay revealed that impairment of hepatoblast proliferation rather than cell apoptosis is one of the consequences of bms1l^(sq163) giving rise to an under-developed liver.Therefore,our findings demonstrate that Bmsll is necessary for zebrafish liver development.Yong Wanga,Yue Luoa,Yunhan Hong(b,),Jinrong Peng(a,),Lijan Lo(a,b,) a College of Animal Sciences,Zhejiang University,Hangzhou 310058,China b Department of Biological Sciences,National University of Singapore,Science Drive 4,Singapore 117543,Singapore 2012Journal of Genetics and Genomics2012,39,9:4
6High performance liquid chromatographic separation of thirteen drugs collected in Chinese Pharmacopoeia 2010(Ch.P2010) on cellulose ramification chiral stationary phase显示文摘The enantiomers separation of thirteen drugs collected in Ch.P2010 was performed on chiral stationary phase of cellulose ramification (chiralpak OD and chiralpak OJ) by high performance liquid chromatographic (HPLC) methods, which included ibuprofen (C1), ketoprofen (C2), nitrendipine (C3), nimodipine (C4), felodipine (C5), omeprazole (C6), praziquantel (C7), propranolol hydrochloride (C8), atenolol (C9), sulpiride (C10), clenbuterol hydrochloride (C11), verapamil hydrochloride (C12), and chlorphenamine maleate (C13). The mobile phase consisted of isopropanol and n-hexane. The detection wavelength was set at 254 nm and the fiow rate was 0.7 mL/min. The enantiomers separation of these thirteen racemates on chiralpak OD column and chiralpak OJ column was studied, while the effects of proportion of organic additives, alcohol displacer and temperature on the separation were studied. And the mechanism of some of racemates was discussed. The results indicated that thirteen chiral drugs could be separated onchiral stationary phase of cellulose ramification in normal phase chromatographic system. The chromatographic retention and resolution of enantiomers could be adjusted by factors including column temperature and the concentration of alcohol displacer and organic alkaline modifier in mobile phase. It was shown that the resolution was improved with reducing concentration of alcohol displacer. When concentration of organic alkaline modifier was 0.2% (v/v), the resolution and the peak shape were fairly good. Most racemates mentioned above had better resolution at column temperature of 25 1C. When racemates were separated, the temperature should be kept so as to obtain stable separation results.Ying Zhoua,b, Chao Maa, Yan Wanga, Qi-Ming Zhangb, Yi-Ying Zhanga, Jie Fua, Hong Gaoc, Li-Xun Zhaoc aState Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China bNational Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China cInstitute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China 2012Journal of Pharmaceutical Analysis2012,2,1:4
7Effect of Sr on microstructure and aging behavior of Mg-14Li alloysBin Jiang a,b,c,Ying Zeng b,Hengmei Yin a,b,Ruihong Li a,b,Fusheng Pan a,b a National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400030,China b College of Materials Science and Engineering,Chongqing University,Chongqing 400030,China c New Materials Center,Chongqing Academy of Science and Technology,Chongqing 401123,China 2012Progress in Natural Science:Materials International2012,22,2:3
8Analysis of species-dependent hydrolysis and protein binding of esmolol enantiomers显示文摘The stereoselective hydrolysis of esmolol in whole blood and in its separated components from rat,rabbit and human was investigated.Blood esterase activities were variable in different species in the order of rat>rabbit>human.Rat plasma showed the high esterase activity and had no stereoselectivity to enantiomers.Rabbit red blood cell(RBC) membrane,RBC cytosol and plasma all hydrolyzed esmolol but with different esterase activity,whereas the hydrolysis in RBC membrane and cytosol showed significant stereoselectivity towards R-(+)-esmolol.Esterase in RBC cytosol from human blood mainly contributed to the esmolol hydrolysis,which was demonstrated with no stereoselctivity.Esterase in human plasma showed a low activity,but a remarkable stereoselectivity with R-(+)-esmolol.In addition,the protein concentration affected the hydrolysis behavior of esmolol in RBC suspension.Protein binding of esmolol enantiomers in human plasma,human serum albumin(HSA) and α_1-acid glycoprotein(AGP) revealed that there was a significant difference in bound fractions between two enantiomers,especially for AGP.Our results indicated that the stereoselective protein binding might play a role in the different hydrolysis rates of esmolol enantiomers in human plasma.Yi-Hong Tanga,b,1,Jun-Yan Wanga,1,Hai-Hong Hua,Tong-Wei Yaoa,Su Zenga,n aDepartment of Pharmaceutical Analysis and Drug Metabolism,College of Pharmaceutical Sciences,Zhejiang University,Hangzhou,Zhejiang 310058,People’s Republic of China bShanghai Institute of Technology,Shanghai 201418,People’s Republic of China 2012Journal of Pharmaceutical Analysis2012,2,3:3
9ZrO_2 strengthened NiAl/Cr(Mo,Hf) composite fabricated by powder metallurgyL.Y. Sheng a,b, J.T. Guo c, T.F. Xi a,b, B.C. Zhang c, H.Q. Ye c a PKU-HKUST ShenZhen-Hong Kong Institution, Shenzhen 518057, China b College of Engineering, Peking University, Beijing 100871, China c Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China 2012Progress in Natural Science:Materials International2012,22,3:3
10直接评估吗啡刺激糖尿病人隐静脉内皮一氧化氮释放减少显示文摘to directly measure in real time basal and stimulated levels of NO released from human saphenous vein endothelium and to quantify the expression of the μopiate receptor, which has been linked with NO release. METHODS: Saphenous vein segments from patients with type 2 diabetes ( n = 12) and patients without diabetes (n =8) were obtained. The release of NO was measured directly from the endothelium using a NO-specific amperometric probe. NΩ-nitro-L-arginine methyl ester (L-NAME, 0.1 mmol/L), a NO synthase (NOS) inhibitor, or morphine (1 μmol/L), a stimulant, was administered and the measurements were repeated. Values were reported relative to the mean initial measurement of NO release from diabetic endothelium, which was defined as the relative zero level of NO release. A RT-PCR was then performed on the endothelium to measureμ opiate receptor expression. RESULTS: Diabetic patients (n = 12) showed a relative and significantly diminished basal level of released NO, (0.049± 0.012) nmol/L, comparedThomas V BILHNGER, James A VOSSWINKEL, Patrick CADET, Christos M RIALAS, Harold I MAGAZINE, George B STEFANO(Division of Cardiothoracic Surgery, Department of Surgery, University Hospital and Medical Center, HSC, T19-080, Stony Brook, New York 11794-8191 Neuroscience Research Institute, State University of New York College at Old Westbury, Old Westbury, New York , USA) 2002Acta Pharmacologica Sinica2002,23,2:3
11Enabling rfid in retail显示文摘Roussos G College B 2006IEEE Computer2006,39,3:1
12显示文摘SONG Qixianga NIU Xiaofeia WANG Guiyinga TANG Yongganga CAI Zhiranga and PENG Zhenshenga b a Anhui Key Laboratory of Spintronic and Nanometric Materials(Cultivating Base) Suzhou College Suzhou 234000 China b Structure Research Laboratory Univers 2010Rare Metals2010,,02:1
13显示文摘PENG Zhenshenga b WANG Guiyinga TANG Yongganga LIU Penga and NIU Xiaofeia a Anhui Key Laboratory of Spintronics and Nano-materials Research Suzhou College Suzhou 234000 China b Structure Research Laboratory University of Science and Technology of 2010Rare Metals2010,,01:1
14Synthesis and phosphorescent properties of two novel iridium (Ⅲ) complexes bearing bulky tert-butyl substituents显示文摘The synthesis and phosphorescence properties of two novel Ir(Ⅲ)complexes bearing tert-butyl substituents,bis(4-tert-butyl-2- phenylbenzothiozolato-N,C2′)iridium(Ⅲ)(acetylacetonate)[(tbt)2Ir(acac)]and bis(4-tert-butyl-1-phenyl-1H-benzimidazolato- N,C2′)iridium(Ⅲ)(acetylacetonate)[(tpbi)2Ir(acac)],are reported,their molecular structures are confirmed by1H NMR,ESI-MS and elementary analysis.Photoluminescence(PL)studies revealed that they can emit strong green and orange phosphorescence in high quantum yields.Compared to their prototypes lacking of tert-butyl substituents,the two novel iridium(Ⅲ)complexes both have shorter lifetimes and improved or nearly similar PL quantum efficiencies,implying that the exciton quenching is inhibited effectively when molecular steric hindrance increases.The two chelates have great potential to be used as electrophosphorescent materials.Rong Huang~a Xiao Qiang Wei~(a,b) Tai Ping Zhang~a Zhi Yun Lu~(a,*) Ming Gui Xie~a a College of Chemistry,Sichuan University,Chengdu 610064,China b School of Optic-electronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China 2007Chinese Chemical Letters2007,18,9:1
15Efficient polygon-filling algorithms for raster displays 显示文摘Dunlavey M R College B 1983A CM Transactions on Graphics1983,2,4:1
16显示文摘HUANG Xiaogua CHEN Jiaoa WANG Lixia and ZHANG Qitua b a College of Materials Science and Engineering Nanjing University of Technology Nanjing 210009 China b Jiangsu Provincial Key Laboratory of Inorganic and Composite New Materials Nanjing University of T 2011Rare Metals2011,,01:1
17Preparation and X-ray Crystal Structure of Di-chlorobis (p-t-butylphenylbutyl Sulfide)Palladium(Ⅱ)ZHAO Bei a GUO Song Shan a WANG Han Zhang a\ YU Kai Bei b a (Chemistry and Chemical Engineering College, Suzhou University, Suzhou, 215006) b (Chengdu Institute of Organic Chemistry, the Chinese Academy of Sciences, Chengdu, 6 1999Chinese Journal of Structural Chemistry1999,18,1:1
18显示文摘PENG Zhenshenga b WANG Guiyinga TANG Yongganga LIU Penga and NIU Xiaofeia a Anhui Key Laboratory of Spintronics and Nano-materials Research Suzhou College Suzhou 234000 China b Structure Research Laboratory University of Science and Technology of 2010Rare Metals2010,,01:1
19Screening and surveillance for the early detection of colorectal cancer and adenomatous polyps,2008:a joint guideline from the American Cancer Society,the US Multi-Society Task Force on Colorectal Cancer,and the American College of Radiology显示文摘Levin B Lieberman DA McFarland B American Cancer Society Colorectal Cancer Advisory Group US Multi-Society Task Force American College of Radiology Colon Cancer Committee 2008Gastroenterology2008,134,5:1
20Role of Notch expression in premature senescence of murine bone marrow stromal cells显示文摘The aim of the present study was to investigate the role of the Notch signaling pathway in premature senescence of murine bone marrow stromal cells in vitro. The intracellular domain of Notch 1 (ICN) was transfected into cultured murine bone marrow stromal cells by lipofectamine transfection. After three days, the proliferation of transfected cells was measured by MTT assay. Cell cycle distribution was analyzed by flow cytometry. Senescence-associated beta-galactosidase (SA-beta-gal) was measured, and the percentage of positive cells was evaluated by assessing 1000 cells in random fields of view. The expressions of p53 and p21Cip1/Waf1 were analyzed by both RT-PCR and Western blot analysis. The results showed that activation of Notch signaling inhibited proliferation of murine bone marrow stromal cells with induction of G1 arrest, increased the percentage of SA-beta-gal positive cells, and upregulated p53 and p21Cip1/Waf1 mRNA and protein expression levels. Thus, the activated Notch signaling could induce premature senescence of bone marrow stromal cells through the p53-p21Cip1/Waf1 pathway.Kejie Zhanga,b, Lifang Huang b, Hanying Sunb, Yan Zhub, Yi Xiaob, Mei Huang b, Wenli Liub,a Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen 361004, China b Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China 2009Progress in Natural Science:Materials International2009,19,5:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费