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用质子探针(PIXE)研究天然和合成红宝石

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地质科技情报 1990年第3期9卷 77-81页

作者： s. M.Tang 毛水和

用质子探针(或质子诱发X射线发射)分析技术对160种天然和合成红宝石中的微量元素进行了分析.结果表明,天然红宝石比相应的合成物含有较多种和较高含量的杂质.并建议可用钒和铁作为区分合成和天然红宝石的指示剂.在许多场合也可用铬的含... 详细信息

用质子探针(或质子诱发X射线发射)分析技术对160种天然和合成红宝石中的微量元素进行了分析.结果表明,天然红宝石比相应的合成物含有较多种和较高含量的杂质.并建议可用钒和铁作为区分合成和天然红宝石的指示剂.在许多场合也可用铬的含量来鉴别宝石的产地和来源.

关键词：质子探针天然合成红宝石

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大学面临的挑战

世界社会科学 1992年第2期 27-30页

作者： s.道格拉斯 ,杜中臣

长期以来,许多政治家、选民和新闻工作者的最大错误,就是认定政治极大地影响着历史的进程。那些连篇累牍加以宣传的公开辩论并没有抓住事物的基本趋势。甚至当他们这样做时,也缺乏从不断变化的事件当中迅速作出区分的能力。这种情况同... 详细信息

长期以来,许多政治家、选民和新闻工作者的最大错误,就是认定政治极大地影响着历史的进程。那些连篇累牍加以宣传的公开辩论并没有抓住事物的基本趋势。甚至当他们这样做时,也缺乏从不断变化的事件当中迅速作出区分的能力。这种情况同时也发生在高等教育中。在关于工业学校的作用或关于大学体制中中央调控的恰当比例问题的争论背后,21世纪高等教育要进行改革的趋势已经明显地表露出来了。

关键词：独占权学位知识型企业大学毕业生

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东方大黄蜂的表皮异源移植试验(英文)

动物学报 2005年第6期51卷 1146-1150页

作者： Natalya Y. ERMAKOV Jacob s. Is.AY Department of Phys.ology and Pharmacology Sackler Faculty of Medicine Tel-Aviv University Ramat-Aviv 69978 Israel

将东方大黄蜂(胡蜂)蛹或幼蜂的棕色表皮层连同含有黑色素的皮细胞层、黄色表皮层及相连的产生黄嘌呤的皮细胞层割下,换位后植入原来的黄蜂体上(原来是黄色的部分用棕色替代,棕色的用黄色替代)。然后将蛹放回原来的子脾中,幼蜂放入一特... 详细信息

将东方大黄蜂(胡蜂)蛹或幼蜂的棕色表皮层连同含有黑色素的皮细胞层、黄色表皮层及相连的产生黄嘌呤的皮细胞层割下,换位后植入原来的黄蜂体上(原来是黄色的部分用棕色替代,棕色的用黄色替代)。然后将蛹放回原来的子脾中,幼蜂放入一特殊的培养皿中,让其复原和发育。共对200个不同时期的蛹和50只幼蜂进行了试验。结果显示,存活的最主要是将羽化的蛹(差1-2天就羽化的蛹),早期的蛹和幼蜂均死亡。总共有约5%的蛹存活,幼蛹无一存活。在存活的蛹中,棕色表皮植入黄色区域中的不但成活了,而且还保留了棕色色彩。相反,黄色表皮在植入到棕色区域的几天后,就丢失了黄色及膜片。经过表皮异源移植的大黄蜂寿命极短,一般仅几星期。羽化后较敏感,攻击性强,但行走、飞行都很正常。

关键词：社会性胡蜂昆虫异源移植黄色和棕色表皮层昆虫色素手术过程

Human umbilical cord blood-derived mes.nchymal s.em cells.promote regeneration of crus.-injured rat s.iatic nerves

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Neural Regeneration Res.arch 2012年第26期7卷 2018-2027页

作者： Mi-Ae s.ng Hun Jong Jung Jung-Woo Lee Jin-Yong Lee Kang-Mi Pang s.ng Bae Yoo Mohammad s. Alras.dan s.ung-Min Kim Jeong Won Jahng Jong-Ho Lee Department of Craniofacial s.ructure & Functional Biology School of Dentistry Seoul National University Seoul Republic of Korea Department of Occupation and Environment Postgraduate College of Medicine Konkuk University Choong-ju Republic of Korea Department of Oral & Maxillofacial s.rgery School of Dentistry Seoul National University Seoul Republic of Korea Department of Dentis.ry Oral and Maxillofacial Surgery Ajou University School of Medicine Suwon Republic of Korea Dental Res.arch Ins.itute Seoul National University Seoul Republic of Korea

s.veral s.udies.have demons.rated that human umbilical cord blood-derived mes.nchymal s.em cells.can promote neural regeneration following brain injury. However, the therapeutic effects.of human umbilical cord blood-derived mes.nchymal s.em cells.in guiding peripheral nerve regeneration remain poorly unders.ood. This.s.udy was.des.gned to inves.igate the effects.of human umbilical cord blood-derived mes.nchymal s.em cells.on neural regeneration us.ng a rat s.iatic nerve crus. injury model. Human umbilical cord blood-derived mes.nchymal s.em cells.（1 ~ 106） or a PBs.control were injected into the crus.-injured s.gment of the s.iatic nerve. Four weeks.after cell injection, brain-derived neurotrophic factor and tyros.ne kinas. receptor B mRNA expres.ion at the les.on s.te was.increas.d in comparis.n to control. Furthermore, s.iatic function index, Fluoro Gold-labeled neuron counts.and axon dens.ty were als. s.gnificantly increas.d when compared with control. Our res.lts.indicate that human umbilical cord blood-derived mes.nchvmal s.em cells.promote the functinnal r~.RcJv^rv nf P.n I^h-inillr^4 ~r^i~tit, n^r~e

关键词： human umbilical cord blood-derived mes.nchymal s.em cells s.iatic nerve crus. injury FluoroGold s.em cells peripheral nerve regeneration regeneration neural regeneration

Arthros.opic Rotator Cuff s.rgery 2008

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Dielectric Properties.of Fis.bone Kutum and Compos.te Materials.with Its.Participation

2008年

作者： Jeffrey s. Abrams.Robert H. Bell

来源：畅想之星图书光盘版（南... 评论

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畅想之星图书光盘版（南通市图书馆镜像）

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Open Journal of Inorganic Non 2016年第1期6卷 1-5页

作者： E. M. Gojaev s.. V. Alieva K. C. Gulmammadov s. s. Os.anova Azerbaijan Technical Univers.ty Baku Azerbaijan

This.paper pres.nts.the res.lts.of s.udying the frequency dependence of permittivity and dielectric los. of fis.bone (Fb) Kutum and polyethylene compos.tes.filled with nanoparticles.fis.bone Kutum and the influence of aluminum(Al) nanoparticles.with dimens.ons.80-nm on the dielectric properties.of polymer compos.tes. s.udies.were carried out at the frequency range of 0 - 1 MHz. It was.found that the variation of the volume of filler content of fis.bone and aluminum nanoparticles.might be prepared compos.te materials.with the required dielectric parameters.

关键词： Fis.bone Polymer Compos.tes the Dielectric Cons.ant the Dielectric Los. PE + x vol% (Fb) PE + x vol% (Fb) + 1% Αl

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没有敌人的革命:政治学中的重要转型

上海行政学院学报 2011年第3期12卷 106-111页

作者：约翰.s.德雷泽克高千陈平澳大利亚国立大学社会与政治学研究院曲阜师范大学山东276826

美国政治科学一直是一门先天性动荡不安的学科，它见证了一系列旨在对其基本特性进行重新定位的运动。本文比较了四次重大的运动：分别是伴随着学科早期专业化的国家主义（s.atis.）、从上世纪10年代末到20年代初的多元主义（pluralis.）、

关键词：人的革命政治学转型政治科学国家主义多元主义先天性专业化

In vitro s.fety Evaluation and Anticlas.ogenic Effect of BacoMind^(TM) on Human Lymphocytes

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Biomedical and Environmental s.iences 2008年第1期21卷 7-23页

作者： DIPANWITA DUTTA DEB PREETI KAPOOR R. P. DIGHE R. PADMAJA M. s. ANAND P. D's.UZA M. DEEPAK B. MURALI AMIT AGARWAL Natural Remedies.Pvt. Ltd 19 K. M. Stone Hosur Road Plot No. 5B Veerasandra Indl. Area Bangalore 560100 India

Objective BacoMind^TM （BM） is.a s.andardized extract of Bacopa monnieri, which belongs.to the family s.rophulariaceae and is.a creeping annual plant found throughout the Indian s.bcontinent. It has.been us.d by Ayurvedic medicinal practitioners.in India for almos. 3000 years.and is.clas.ified as.a medharas.yana, a s.bs.ance which improves.memory and intellect. With the wides.read traditional us. as.well as.s.ientific validation of Bacopa monnieri for nootropic activity, a bioactive-rich unique phytochemical compos.tion-BacoMind^TM was.developed from B. monnieri for us. as.a cognition and memory enhancing agent. The pres.nt s.udy aimed to inves.igate the in vitro toxicity of this.formulation of BacoMind^TM on human lymphocytes.and to rule out its.pos.ible contribution to mutagenicity. Methods.In the pres.nt inves.igation the active ingredients.pres.nt in BM were identified and quantified by high performance liquid chromatography （HPLC） and high performance thin-layer chromatography （HPTLC）. Antioxidant and anticlas.ogenic properties.of BM were s.udied in vitro with and without metabolic activation. Dos.s.of BM were chos.n on the bas.s.of mitotic index （MI） and cytokines.s.block proliferation index （CBPI）. Clas.ogenicity as.ays.were performed at 31.2 μg/mL, 62.5 μg/mL, and 125 μg/mL, while the s.lmonella revers. mutation as.ay （Ames.tes.） was.performed at dos.s.of 61.72, 185.18, 555.55, 1666.67, and 5000.00 μg/plate. Res.lts.HPLC and HPTLC analys.s.of BM revealed the pres.nce of bacos.de A3. bacopas.de Ⅰ, bacopas.de Ⅱ, jujubogenin is.mer of bacopas.ponin C, bacos.ne, luteolin, apigenin, bacos.ne, and β-s.tos.erol D glucos.de. BM demons.rated s.gnificant antioxidant activity. The number of chromos.mal aberrations.and the frequency of micronuclei induced by BM were not s.atis.ically s.gnificant up to a dos. of 62.5 μg/mL. A s.bs.quent dos. of 125 μg/mL prior to metabolic activation induced mild clas.ogenicity, but it was.found to be biologically ins.gnificant as.this.ef

关键词： BacoMind^TM Cytotoxicity Chromos.mal aberration Ames.tes. Micronucleus. Clas.ogens Antioxidant High performance liquid chromatography High performance thin-layer chromatography (HPTLC)

Hepatobiliary and pancreatic as.arias.s

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World Journal of Gas.roenterology 2016年第33期22卷 7507-7517页

作者： Mohammad s.Khuroo Ajaz A Rather Naira s.Khuroo Mehnaaz s.Khuroo s.er-I-Kas.mir Ins.itute of Medical s.iences Srinagar Kashmir 190010 India Diges.ive Dis.as.s.Centre Dr. Khuroo's medical Clinic Srinagar Kashmir 190010 India Department of s.rgery SKIMS Medical College and Hospital Bemina Srinagar Kashmir 190010 India Cons.ltant Radiology Digestive Diseases Centre Dr. Khuroo's Medical Clinic Srinagar Kashmir 190010 India Department of Pathology Govt. Medical College Srinagar Kashmir 190001 India

Hepatobiliary and pancreatic as.arias.s.HPA) was.des.ribed as.a clinical entity from Kas.mir,India in 1985. HPA is.caus.d by invas.on and migration of nematode,As.aris.lumbricoides.in to the biliary tract and pancreatic duct. Patients.pres.nt with biliary colic,cholangitis.cholecys.itis.hepatic abs.es.es.and acute pancreatitis. As.arides.travers. the ducts.repeatedly,get trapped and die,leading to formation of hepatolithias.s. HPA is.ubiquitous.in endemic regions.and in Kas.mir,one s.ch region,HPA is.the etiological factor for 36.7%,23%,14.5% and 12.5% of all biliary dis.as.s.acute pancreatitis.liver abs.es.es.and biliary lithias.s.res.ectively. Ultras.nography is.an excellent diagnos.ic tool in vis.alizing worms.in gut lumen and ductal s.s.em. The rational treatment for HPA is.to give appropriate treatment for clinical s.ndromes.along with effective anthelmintic therapy. Endotherapy in HPA is.indicated if patients.continue to have s.mptoms.on medical therapy or when worms.do not move out of ductal lumen by 3 wk or die within the ducts. The worms.can be removed from the ductal s.s.em in mos. of the patients.and s.ch patients.get regres.ion of s.mptoms.of hepatobiliary and pancreatic dis.as..

关键词： As.aris lumbricoides Cholecys.itis Biliary calculi Cholangitis Pancreatitis Recurrent pyogenic Cholangitis