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1Preparation,characterization and photocatalytic performance of Mo-doped ZnO photocatalysts显示文摘A series of Mo-doped ZnO photocatalysts with different Mo-dopant concentrations have been prepared by a grinding-calcination method.The structure of these photocatalysts was characterized by a variety of methods,including N 2 physical adsorption,X-ray diffraction(XRD),scanning electron microscopy(SEM),Fourier transform infrared(FT-IR) spectroscopy,photoluminescence(PL) emission spectroscopy,and UV-vis diffuse reflectance spectroscopy(DRS).It was found that Mo 6+ could enter into the crystal lattice of ZnO due to the radius of Mo 6+(0.065 nm) being smaller than that of Zn 2+(0.083 nm).XRD results indicated that Mo 6+ suppressed the growth of ZnO crystals.The FT-IR spectroscopy results showed that the ZnO with 2 wt.% Mo-doping has a higher level of surface hydroxyl groups than pure ZnO.PL spectroscopy indicated that ZnO with 2 wt.% Mo-doping also exhibited the largest reduction in the intensity of the emission peak at 390 nm caused by the recombination of photogenerated hole-electron pairs.The activities of the Mo-doped ZnO photocatalysts were investigated in the photocatalytic degradation of acid orange II under UV light(λ = 365 nm) irradiation.It was found that ZnO with 2 wt.% Mo-doping showed much higher photocatalytic activity and stability than pure ZnO.The high photocatalytic performance of the Mo-doped ZnO can be attributed to a great improvement in the surface properties of ZnO,higher crystallinity and lower recombination rate of photogenerated hole-electron(e-/h+) pairs.Moreover,the undoped Mo species may exist in the form of MoO3 and form MoO3 /ZnO heterojunctions which further favors the separation of e-/h+ pairs.YU ChangLin YANG Kai SHU Qing YU Jimmy C CAO FangFang LI Xin ZHOU XiaoChun 2012Science China Chemistry2012,55,9:8
2Corrosion behavior of Mg-Y alloy in NaCl aqueous solutionXin Zhang a,b,c,Kui Zhang a,Xia Deng a,Hongwei Li b,c,Yongjun Li a,Minglong Ma a,Ning Li b,c,Yanlong Wang b,c a State Key Laboratory for Fabrication and Processing of Nonferrous Metals,Beijing General Research Institute for Nonferrous Metals,Beijing 100088,China b Beijing Engineering Research Center for Advanced Manufacturing and Evaluation of Special Vehicle Parts,Beijing 100072,China c Center of Technology,Beijing North Vehicle Group Corporation,Beijing 100072,China 2012Progress in Natural Science:Materials International2012,22,2:7
3Aberrant cytological localization of p16 and CDK4 in colorectal epithelia in the normal adenoma carcinoma sequence显示文摘AIM: To study the correlation between the patterns of subcellular expression of p16 and CDK4 in colorectal epithelia in the normal-adenoma-carcinoma sequence. METHODS: Paraffin sections of 43 cases of normal colorectal epithelia and corresponding adenomas as well as carcinomas were analysed immunocytochemically for subcellular expression of p16 and CDK4 proteins. RESULTS: Most carcinomas showed more cytoplasmic overexpression for p16 and CDK4 than the adenomas from which they arised or the adjacent normal mucosa. Most normal or non-neoplastic epithelia showed more p16 and CDK4 expression in the nucleus than their adjacent adenomas and carcinomas. There was a significant difference between the subcellular expression pattern of p16 and CDK4 in normal-adenoma-carcinoma sequence epithelia (P < 0.001). Neither p16 nor CDK4 subcellular patterns correlated with histological grade or Dukes’ stage. CONCLUSION: Interaction of expression of p16 and CDK4 plays an important role in the Rb/p16 pathway. Overexpression of p16 and CDK4 in the cytoplasm, as well as loss expression of p16 in the nucleus might be important in the evolution of colorectal carcinoma from adenoma and, of adenoma from normal epithelia.PO Zhao Xin Mao Ian C Talbot 2006World Journal of Gastroenterology2006,12,39:5
4笋芽顶端分生组织在竹秆横切面形态形成中的作用与机制研究显示文摘竹秆的横切面主要由表皮、皮层、维管组织、基本组织及髓腔(早期为髓组织)组成。这些组织均由笋芽茎顶端分生组织分化发育而来,且其在生长发育过程中促使了竹秆横切面形态(本文特指:竹秆横切面外轮廓形状、围度及壁-腔结构)的形成。然而,人们对于这一生长发育过程的生物学机制知之甚少。本研究利用解剖学、数学模拟等方法,对 20 种具不同秆径竹种的笋芽顶端分生组织进行了分析。研究结果发现,笋芽顶端分生组织指状形态的维持是竹子产生圆柱形竹秆的基础;在顶端分生组织细胞数目增加的同时,线性增加原体细胞数目应是竹子在演化过程中产生大径竹秆且保持规则壁-腔结构的方式。进一步通过研究一个竹壁增厚且壁-腔架构紊乱的稳定变异体———实肚竹( Phyllostachys nidularia f. farcta)发现,其笋芽顶端分生组织细胞数目减少且原体/原套细胞数比值降低使其产生了高比例的壁组分组织(指基本分生组织与肋状分生组织)与低比例的髓组织。上述 2 种组织的比例失衡,使得实肚竹笋芽在后续发育中壁组分组织随机挤入到了髓组织中,最终形成了实肚竹异常的竹秆横切面形态(竹壁多样化增厚且壁-腔结构紊乱)。此外,相对较小的顶端分生组织,使得实肚竹笋芽产生了较少的内源激素,如其生长素含量仅约为其原种篌竹的 67. 5%,各细胞分裂素含量也显著低于篌竹笋芽。转录组分析进一步发现,在实肚竹笋芽中与激素及代谢相关的功能基因呈显著下调表达。这些生理与分子变化最终导致了实肚竹竹秆矮化、秆径减小且生物量降低。本论文的研究结果为研究竹秆横切面发育提供了一个重要的视角,同时也为实肚竹厚壁茎秆的形成提出了一个合理的机制。Wang Y Sun X Ding Y Fei Z Jiao C Fan M Yao B Xin P Chu J Wei Q 王雨珺 魏强 2019世界竹藤通讯2019,17,3:5
5Environmental and Psycho-social Factors Related to Prostate Cancer Risk in the Chinese Population:a Case-control Study显示文摘Objective To study the risk environmental and psycho-social factors associated to prostate cancer(PCa) in Chinese population. Methods 250 PCa patients and 500 controls were enrolled in this case-control study. Information was collected and logistic regression analysis was used to estimate the odds ratios(OR) and 95% confidence intervals(95% CI) for relationship between lifestyle, eating habits and psycho-social factors with PCa risk. Results Green vegetables and green tea were associated with a decreased risk of PCa(OR=0.39, 95% CI: 0.28-0.53; OR=0.59, 95% CI: 0.40-0.87, respectively). Family history of PCa(OR=7.16, 95% CI: 2.01-25.49), history of prostate diseases(OR=2.28, 95% CI: 1.53-3.41), alcohol consumption(OR=1.97, 95% CI: 1.33-2.90), red meat consumption(OR=1.74, 95% CI: 1.20-2.52), barbecued(OR=2.29, 95% CI: 1.11-4.73) or fried(OR=2.35, 95% CI: 1.24-4.43) foods were related with increased PCa risk. Negative psycho-social factors including occupational setbacks(OR=1.61, 95% CI: 1.00-2.59), marital separation(OR=1.94, 95% CI: 1.29-2.91), self-contained suffering(OR=2.37, 95% CI: 1.58-3.55), and high sensitivity to the personal comments(OR=1.73, 95% CI: 1.18-2.54) were related to PCa. Conclusion Regular consumption of green vegetables and green tea may suggest protective effects on PCa. Alcohol consumption, red meat consumption and barbecued or fried foods were associated with PCa. Negative psycho-social factors may also play a role in the incidence of PCa in Chinese population.LI Mei Ling LIN Ji HOU Jian Guo XU Lei CUI Xin Gang XU Xing Xing YU Yong Wei HAN Xue WANG Guo Min GUO Jian Ming XU Dan Feng THOMPSON Timothy C CAO Guang Wen ZHANG Hong Wei 2014Biomedical and Environmental Sciences2014,27,9:5
6Next generation patient-derived prostate cancer xenograft models显示文摘对为前列腺癌症的更有效的治疗学的途径有批评需要。然而,在这个区域的研究被缺乏严重妨碍了临床上相关,在疾病的 vivo 模型试验性。这评论特别地基于 patients’ 的 subrenal 囊 grafting 集中于前列腺癌症异种皮移植模型的发展;进 nonobese 糖尿病 / 严重的肿瘤组织联合了 immunodeficient (NOD/SCID ) 老鼠。这种技术允许可移植的、导出病人的癌症织物异种皮移植线的成功的开发从不仅好攻击变形,而且从局部性的前列腺癌症纸巾。异种皮移植被发现了保留原来的恶意的关键生物性质,包括组织病理学说、分子的特征,肿瘤异质,对雄激素脱离的反应和变形能力。因此,他们是高度临床上相关并且在细胞、分子的层次,为个性化的癌症治疗屏蔽的药和现出症状之前的潜的药为前列腺癌症前进的研究提供珍贵工具测试的功效;特别当模型的一块面板习惯于盖子时许多疾病。这些异种皮移植模型能因此被看作前列腺癌症的下一代的模型。Dong Lin Hui Xue Yuwei Wang Rebecca Wu Akira Watahiki Xin Dong Hongwei Cheng Alexander W Wyatt Colin C Collins Peter W Gout Yuzhuo Wang 2014Asian Journal of Andrology2014,16,3:4
7Biosynthesis of Unsaturated Fatty Acids via Mortierella Isabellina Cultivated in a Medium Containing Butanol显示文摘Mortierella isabellina was found to accumulate large amounts of unsaturated fatty acids when it was grown in a medium containing butanol(5 g/L) and yeast extract(10 g/L) and cultivated at 25 ℃ for 5 d during which additional feeding butanol of 2 g/L was fed after being cultivated for 48 h . The resultant mycelial lipids accounted for 40 1% of the dry mycelia, while about 34% of butanol in the medium was converted. The mycelial lipids contained four kinds of unsaturated fatty acids, i.e ., palmitoleic(4 9%), oleic(54 1%), linoleic(10 4%) and linolenic(5 4%) acids. Those accounted for 74 8% of the total fatty acids. The effects of the culture conditions, such as cultivation temperature, initial pH of the medium and additional feeding butanol in the course of cultivation, on the production of mycelial lipids by M. isabellina were studied.XIAN Mo 1, YAN Ji chang 2, CHENG Tie xin 1, KANG Yi jian 3, LI Wen xing 1, BI Ying li 1 and ZHEN Kai ji 1** 1. College of Chemistry, Jilin University, Changchun 130023, P. R. China 2. College of Chemistry, Northeast Normal University, C 2002Chemical Research in Chinese Universities2002,18,3:3
8Stereotactic body radiation therapy for management of spinal metastases in patients without spinal cord compression: a phase 1–2 trial显示文摘Xin Shelley Wang Laurence D Rhines Almon S Shiu James N Yang Ugur Selek Ibrahima Gning Ping Liu Pamela K Allen Syed S Azeem Paul D Brown Hadley J Sharp David C Weksberg Charles S Cleeland Eric L Chang 2012Lancet Oncology2012,,4:2
9Label-retaining liver cancer cells are relatively resistant to sorafenib显示文摘Hong-Wu Xin Chenwi M Ambe Danielle M Hari Gordon W Wiegand Tyler C Miller Jin-Qiu Chen Andrew J Anderson Satyajit Ray John E Mullinax Tomotake Koizumi Russell C Langan Douglas Burka Michelle A Herrmann Paul K Goldsmith Alexander Stojadinovic Udo Rudloff S 2013Gut2013,,12:2
10Optical and electrical properties of Zn1-xCdxO films grown on Si substrates by reactive radio-frequency magnetron sputtering显示文摘Sun C W Xin P Ma C Y 2006Appl Phys Lett2006,89,18:1
11Mechanisms of apoptosis in rat cerebellar granule cells induced by hydroxyl radicals and the effects of EGb761 and its constituents显示文摘Xin W Wei T Chen C 2000Toxicology2000,148,23:1
12(A) 显示文摘Cao Huai xin Xu zong ben Zhang Jian hua Matrix-trace on C^*- algebra M 2002Linear Algebra and its Applications2002,,345:1
13Species-area relationship explained by the joint effects of dispersal limita- tion and habit heterogeneity显示文摘GUO C S MING J Y XIN H U 2009Ecology2009,90,11:1
14Dynamic spec- trum access: from cognitive radio to network radio 显示文摘SONG M XIN C ZHAO Y 2012IEEE Wireless Communications2012,19,1:1
15Distributed memetic differential evolution with the synergy of lamarckian and baldwinian learning显示文摘Zhang C M Chen J Xin B 0,,05:1
16The effect of adding dimethyl carbonate(DMC) and ethanol to unleaded gasoline on exhaust emission显示文摘Wen L B Xin C Y Yang S C 2010Applied Energy2010,87,1:1
17Electrochemical ox- idation of glucose by electrode 显示文摘Zhang Xin Chan K Y Tseung A C C 1995J Electroanal Chem1995,386,:1
18Quantitative analysis and health risk assessment of polycyclic aromatic hydrocarbons in edible vegetable oils marketed in Shandong of China显示文摘Jiang D Xin C Li W 2015Food Chem Toxicol2015,83,:1
19Activity levels and experession of antioxidant enzymes in the ascorbate-glutathione cycle in artificially aged rice seed显示文摘Yin GK Xin X Song C 2014Plant Physiology and Biochemistry2014,80,:1
20Analysis of the phases developed by laser uitriding Ti-6Al-4V alloys显示文摘 Xin H Watson L M 1997Acta Materialia1997,,45:1
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