Hilbert空间中广义似平衡问题与k-严格伪压缩映象的强收敛定理

在Hilbert空间中,用FAN-KKM定理导出了广义似平衡问题的辅助问题的解的存在性和唯一性,在适当的条件下,引入和研究了一种新的混合迭代序列,用以寻求广义似平衡问题的解集与一个k-严格伪压缩映象的不动点集的公共元。     

Determination of Acid β-Galactosidase Activity: Methodology and Perspectives

Early, accurate diagnosis of lysosomal storage disorders is a major challenge, even for trained specialists. Finding innovative, accurate diagnostic methods, and high throughput, cost-effective tools are crucial to medical progress and will contribute to improved quality of life. The goal of this work was to improve currently used protocols to determine activity of acid β-galactosidase, and discuss the possibility analysing lysosomal enzymes with microfluidic systems. A principle of the determination of β-galactosidase activity was fluorometric measurement of a deprotonated form of 4-methylumbelliferone released in the enzymatic reaction. Measurements were performed using Jurkat T cells as a source of the enzyme. We observed the temperature-dependent substrate inhibition effect and determined the substrate (4-MU-β-d-galactopyranoside) concentration which should be used to determine acid β-galactosidase activity at 37 °C (0.8 mM) and at room temperature (0.6 mM). We proved that the sample incubation time may be significantly reduced to only a few minutes. We also showed that the amount of alkaline buffer used to stop the enzymatic reaction may be minimized and even, in some cases, eliminated. The presented results show how the sensitivity of the available methods to diagnose patients suffer from gangliosidosis GM1 or Morquio B disease can be improved. The proposed method may be easily implemented with microfluidic systems, which currently are promising tools for point-of-care applications.     

三浦绫子《冰点》中的隐形选择

三浦绫子的创作深受基督教思想影响,《冰点》是其基督教主题作品的代表作,体现出基督教思想与文学性的巧妙融合,同时也表现出作家创作时的选择性。文章从叙事学层面,对其在人物、心理描写两方面的选择性创作加以分析。     

浅析GPS精密单点定位误差改正模型

本文利用误差改正模型方法,得到精密单点定位总模型,利用这个模型对多个历元数据进行解算,并与非改正结果进行了比较、分析。分析结果表明模型能够显著提高单点定位的精度。     

试论高校学科梯队建设的科学评估与管理

本文讨论了高校学科点梯队评估指标体系的建立以及实施这种评估所应具备的条件,以推动高校师资队伍建设工作向更注重于学科梯队建设的方向发展     

考试的起点、过程和结果公平

依照教育公平理论发展从形式公平到实质公平的价值参照,对考试的起点、过程、结果的公平问题进行深入思考和分析, 多角度反思教育考试的程序公平背后可能隐含的实质不公。     

具p-Laplacian算子二阶多点边值问题正解的存在性

通过利用锥上,不动点定理研究一类具p-Laplacian算子二阶微分方程多点边值问题正解的存在性,得到了正解的存在性定理。     

便携式三坐标测量仪测点空间坐标计算及测球半径补偿研究

论述了便携式三坐标测量仪的测量原理、测点空间坐标计算及测量仪测球半径补偿计算。研究结果可以直接应用到多关节臂测量仪的计算和补偿,为研制多关节臂便携式测量仪提供了理论基础。     

谈高校教师教学课件的制作

高校非计算机专业教师制作多媒体教学课件,PowerPoint、Authorware和Dreamweaver、Flash、Fireworks都无需编程,方便易学,且功能强大,是较好的多媒体制作工具.本文分析了用这些软件的优、缺点,为高校教师制作精美实用的多媒体教学课件提供了依据.     

有限簇非扩张映象具误差的黏性逼近

设E是一致光滑的Banach空间,C是E之一非空闭凸子集.设f∶C→C是一压缩映象,T1,T2…,TN∶C→C是一有限簇非扩张映象且∩iN=1F(Ti)≠θ.设序列{xn}定义为xn 1=αnf(xn) (1-αn-γn)Tnxn γnun.本文用黏性逼近方法证明了,在一定条件下,序列{xn}强收敛于T1,T2…,TN的一公共不动点.本文结果也推广和改进了最近一些人的最新结果.