河北师范大学学报(教育科学版) ,

在当今瞬息万变的转型时期,我们应当如何弘扬教育传统?一言蔽之,我们的批判应该不偏不倚,无过不及,要批判地继承中华教育传统

The reliability and validity of measurement of Expressed Emotion in family members with schizophrenia

2002-2003 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

灾害护理课程的设计与实践

2009-2010 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

苯胺基喹唑啉类酪氨酸激酶抑制剂的电喷雾质谱裂解规律

研究吉非替尼、厄洛替尼和艾克替尼3种苯胺基喹唑啉类酪氨酸激酶抑制剂,在电喷雾质谱正离子模式下的裂解规律.通过电喷雾质谱产生各化合物稳定的[M+H]+准分子离子峰,进而对[M+H]+离子进行高能诱导裂解和碰撞诱导裂解,获得相应化合物的质谱图.结果表明:在电喷雾电离（ESI）多级质谱中,3种药物的裂解主要发生在喹唑啉环C4,C6和C7位取代基上,并伴随分子内重排和H+的迁移重排;在二级质谱图中,吉非替尼的高丰度特征离子质荷比（m/z）为128.1,厄洛替尼的m/z值为278.1和336.1,埃克替尼的m/z值为278.1,304.1.国家自然科学基金资助项目(81302652);;福建省自然科学基金资助项目(2015J01342

采用原研制剂制备米诺膦酸片及体外溶出度的一致性考察

制备米诺膦酸片,并以原研制剂为参比制剂,采用f2相似因子法对两者体外溶出度的一致性进行考察.建立合适的体外溶出度测定方法,研究参比制剂的溶出情况,通过单因素试验对辅料的用量进行筛选,制备出米诺磷酸片.比较自制品与原研制剂在不同溶出介质中的溶出行为,评价两者体外溶出行为的相似性.结果表明:制备的米诺膦酸片剂与原研制剂在4种不同pH值溶出介质中的溶出相似因子f2均大于50;制备的米诺膦酸片剂与原研制剂体外溶出行为相似.国家自然科学基金资助项目(81302652);;福建省自然科学基金资助项目(2015J01342

大孔吸附树脂分离纯化龙胆药材中龙胆苦苷和马钱子苷酸的研究

目的:建立利用大孔吸附树脂对龙胆药材中龙胆苦苷和马钱子苷酸进行富集和分离纯化的方法。方法:采用加速溶剂萃取法对龙胆药材中两种有效成分进行高效提取,比较了D301,AB-8,D101,XDA-1四种大孔树脂对龙胆苦苷和马钱子苷酸的吸附性能,最终确定采用D301型大孔对脂对二者进行富集吸附,对其工艺参数进行优化,全程采用高效液相色谱进行目标化合物浓度检测。结果:化优后的工艺参数为:上样浓度:0.2 g/mL,最大上样量:0.25 g龙胆药材/g树脂,最佳静态吸附时间:8 h,采用8%和55%的乙醇溶液对龙胆苦苷和马钱子苷酸分别进行洗脱;龙胆苦苷和马钱子苷酸分别富集在8%和55%的乙醇洗脱液中,洗脱液浓缩后冷冻干燥,可得到纯度分别为74.3%和80.9%的粗产物,龙胆苦苷和马钱子苷酸的回收率分别为70.11%和67.82%。结论:此法效率较高,操作简便,即可用于实验室制备少量的难以购置的标准品,也可进行放大研究,用于工业生产。国家自然科学基金重点项目(20235020);; 青岛“2004将才计划”(04-3-JJ-11);; 共建生物医药研发测试中心(LS-05-KJZX-76)资

Content of gentiopicroside and loganic acid in Radix gentianae and their fingerprints

To develop a HPLC-DAD-ESI-TOF/MS analysis method for the determination of gentiopicroside and loganic acid in Radix gentianae samples and for the research of their fingerprints.The samples were extracted using ASE for 10 min under 100 ℃ and 9.65 MPa,and divided into water phase and chloroform phase and analyzed them with HPLC-DAD-ESI-TOF/MS method respectively.Based on this method,the HPLC fingerprints of Radix gentianae were established.Comparing the spectrogram and mass spectrum of the chromatogram peak with the reference value,three compounds in water phase were identified as gentiopicroside,asafetida acid and loganic acid.There is no report of the compounds in chloroform phase.The content of gentiopicroside and loganic acid in samples of different groups were determined,separately.The fingerprints were compared by the software of the similarity evaluation system for chromatographic fingerprint.The water phase fingerprint congruence coefficients of samples from six different areas were above 0.90,however,the chloroform phase fingerprint congruence coefficients were within 0.62-0.99.This method can be used for determination of potent component in Radix gentianae and its quality control.Radix gentianae from different producing areas have the largest diversities,and the diversities embodied in the content of chloroform phase compounds.青岛“2004将才计划”(04-3-JJ-11);; 国家海洋局青年基金资助项目(2005602);; 崂山区政府区校共建生物医药研发测试中心资助(LS-05-KJZX-76)

Determination of Gentiopicroside and Loganic Acid in Radix Gentianae by MEKC and MEEKC Mode

目的建立胶束电动毛细管色谱(MEKC)和微乳液毛细管电动色谱(MEEKC)分析龙胆药材中龙胆苦苷和马钱子苷酸含量的方法。方法采用加速溶剂萃取法(ASE)对龙胆药材进行提取,萃取温度:100℃,压力:9.65MPa,萃取时间:10min。采用未涂层熔融石英毛细管(内径75μm,有效长度50cm)。分别考察了两种分离模式下电泳介质的构成和电泳过程中的各操作参数对样品分离过程的影响,优化了MEKC和MEEKC的分析条件,在各自对应的缓冲液体系下,MEKC和MEEKC分离电压分别为30和22kV,柱温均为25℃,检测波长均为238nm。结果在选定的工作条件下,龙胆苦苷和马钱子苷酸与其他组分达到了基线分离,两种成分的浓度与其响应信号值之间具有较好的线性相关性,加标回收率在96.3%～105.1%之间,检测限均低于10mg·L-1,对6处不同产地的龙胆药材进行了分析,并对测定结果进行了t检验,结果表明,两种模式下,测定结果之间不存在显著性差异,而不同产地的龙胆药材的龙胆苦苷和马钱子苷酸含量之间存在较大差异。结论本方法简便,准确,快速,重现性较好,可用于龙胆药材有效成分的含量测定和质量控制。OBJECTIVE To develop MEKC and MEEKC modes for the determination of gentiopicroside and loganic acid in extracts of Radix Gentianae. METHODS The analyte was extracted from Radix Gentianae samples by accelerated solvent extraction, and the extraction conditions were optimized. Separation and determination were carried out on a bared fused silica capillary(50 cm×75 μm) with corresponding buffer. The run voltage of MEKC and MEEKC were 30kV and 22 kV respectively. Detection wavelength of DAD was at 238 nm and column temperature was 25 ℃. RESULTS The developed ASE-HPCE method was simple and reliable for the determination of gentiopicroside and loganic acid in Radix Gentianae samples with a broad linear dynamic range, a recovery range of 96.3%～105.16%,and the detection limit was below 10 mg·L-1. The contents of gentiopicroside and loganic acid in six samples from different regions were determined by the developed method in two modes. T-test value indicated that the determined contents of gentiopicroside and loganic acid by MEKC and MEEKC were consistent. CONCLUSION The method is simple,accurate,rapid and with good reproducibility.It can be used to determine active components in Radix Gentianae.国家自然科学基金重点项目(20235020);; 青岛“2004将才计划”(04-3-JJ-11);; 崂山区校区共建生物医药研发测试中心资助(LS-05-KJZX-76

Blue laser pumped Pr:YLF red dual-wavelength lasers

三价镨离子的研究价值随着市场对可见光激光器应用需求的迫切程度而逐渐呈现在世人面前。近年来，掺镨介质的泵浦源发展迅速，且发射谱线与镨离子的吸收峰能够实现较好交叠，同时，新的激光介质材料在不断涌现和发展，推动了可见光波段固态激光器的发掘研究及其后续商业化。其中，固态双波长激光器因在非线性光学混频方面表现出的重要研究价值，使得蓝光泵浦Pr:YLF可见光双波长激光器具有重要的研究意义和发展前景。 本文通过偏转等离子体溅射设备实验镀制了激光腔镜膜系，并采用蓝光半导体激光器泵浦Pr:YLF晶体实现640nm、698nm双波长激射，具体内容有以下四个方面。 首先，介绍了全固态激光器的研究背景，并对镨离子...The value of studies on trivalent praseodymium ion is being obvious with the urgent market demand of visible lasers. In recent years, the pump source of gain medium with praseodymium ion doped is developing rapidly, and the emission spectra can obtain an efficient overlap with the absorption peak of praseodymium ion. And new materials used as laser medium continue to emerge and develop. These fact...学位：工学硕士院系专业：信息科学与技术学院_光学工程学号：2312011115299

The Influence of Microwave Radiation on the Morphological Changes of Rats' ileum and the Mast Cell

目的研究微波辐射对大鼠回肠上皮细胞形态结构和肥大细胞(MAST CEll,MC)的影响。方法健康雄性Sd大鼠20只,随机均分为对照组(常规饲养)和辐射组(常规饲养+辐射)。微波信号发生器规格:900MHz,1.0W,辐射频率为214μM/CM3。观察辐射过程中大鼠体质量变化,光镜观察回肠组织黏膜小肠绒毛的形态学改变,透射电镜观察回肠组织细胞超微结构的变化,甲苯胺蓝染色观察MC的数目变化。结果辐射组的大鼠体质量增加减缓;小肠绒毛结构紊乱,绒毛结构基本消失,小肠腺排列紊乱,肠腺间距增宽,肌层变薄,小肠黏膜细胞边界不清,核仁消失,线粒体等细胞器空泡化,边界不清,胞质内含大量脂滴,杯状细胞内空泡化。辐射组MC显著多于对照组,差别有统计学意义(P<0.05)。结论微波辐射可导致大鼠回肠上皮细胞形态结构的病理学改变,引起回肠MC数目明显增多。Objective To study the morphological changes of the epithelial cells from rats' ileum treated by microwave radiation and the effect of microwave radiation on the mast cell(MC).Methods SD-rats(♂,20) were randomly divided into two groups: experiment group and control group.The rats of experiment group were given microwave radiation(900 MHz,1.0 W,214 μm/cm3) while those of control group were conventionally bred.We observed the body weight and the morphological changes of the ileum mucosa,after which the ultrastructure of the specimens was observed under transmission electron microscopy,and mast cells distribution was detected with toluidine blue stain.Results Deduction in body weight was observed from the rats of experiment group when compared with the control group.In experiment group,the structure of the intestinal villi was disorderd;the villous structure disappeared;the intestinal gland was disorganized with the spacing widened in midgut gland and myometrial thinning.Intestinal mucosa cells were poorly circumscribed with the disappearance of nucleolus and the structure of cells like mitochondria and goblet cells were vacuolate.Fat was accumulated in the cytoplasm of small intestinal mucosal epithelial cells.The number of mast cells in the experimen group was larger than that in the control group(P<0.05),which was of clinical significance.Conclusion Microwave radiation may lead to pathological changes in the morphology of epithelial cells and significant increase of mast cells in rat ileum.福建省科技计划重点项目(2012Y0032