脐血中铅,锌水平与新生儿发育的关系

为研究脐血中铅，锌水平对新生儿发育是否有不良影响，以１３１例新生儿为调查对象，用新生儿２０项行为神经评分检测新生儿神经行为发育，以石墨炉原子吸收光谱法和火焰原子吸收分光光度法分别测定脐血中铅，锌的含量，结果表明，脐血铅与新生儿神经行为为总得分及主动肌张力呈负相关，差异有显著意义，脐血铅≥０．２９μｍｏｌ／Ｌ的新生儿其神经行为发育明显落后于血铅〈０．１４μｍｏｌ／Ｌ者，差异有显著意义，表明血铅水平低     

Hydrothermal Synthesis,Crystal Structure and Luminescence Property of a 2D Manganese(Ⅱ) Coordination Polymer

Solvothermal reactions of MnCl_2·4H_2O with(pyridin-2-yl)methyl 4-(2-(4-((pyridin-2-yl)methoxy)phenyl)diazenyl)benzoate(L1) via an in situ ligand transformation reaction produced a new coordination polymer, {[Mn_(2.5)Cl_3L_2(H_2O)]·H_2O}_n(1, where HL = 4-(2-(4-((pyridin-2-yl)methoxy)phenyl)diazenyl)benzoic acid). The L1 ligand was decomposed in situ to L~- which was coordinated with Mn(Ⅱ) to form compound 1 in the solvothermal synthesis process. Complex 1 was characterized by IR spectroscopy, powder X-ray diffraction and single-crystal X-ray diffraction.Compound 1 possesses a 2D network. In addition, stability and photoluminescent property of 1 were also investigated.     

载体和助剂对Mo—Ni催化剂表面酸度分布及催化性能的影响

本文利用流动热重装置和加压连续微反装置,测定不同组成SiO_2-Al_2O_3载体和Mo-Ni/SiO_2-Al_2O_3催化剂及不同Ni含量的Mo-Ni/v-Al_2O_3催化剂的表面酸度、积碳性能和HDN(加氢脱氮)活性。研究结果表明,以不同硅铝比的SiO_2-Al_2O_3为载体的Mo-Ni催化剂的酸度变化规律与载体的酸度变化规律一致,但弱酸酸度明显下降,中、强酸酸度有所增加;催化剂的积碳性能决定于表面总酸度的大小,但酸位越强,越容易积碳,而HDN活性与中,强酸酸度有关。     

Immobilization and Characterization of Glucose Oxidase on Single-Walled Carbon Nanotubes and Its Application to Sensing Glucose

The negatively charged （at pH 8.2） glucose oxidase （GOx, pI ca. 4.2） was assembled onto the surface of single-walled carbon nanotubes （SWNT）, which was covered （or wrapped） by a layer of positively charged polyelectrolyte poly（dimethyldiallylammonium chloride） （PDDA）, via the electrostatic interaction forming GOx-PDDASWNT nanocomposites. Fourier transform infrared （FTIR）, UV-Vis and electrochemical impedance spectroscopy （EIS） were used to characterize the growth processes of the nanocomposites. The results indicated that GOx retained its native secondary conformational structure after it was immobilized on the surface of PDDA-SWNT. A biosensor （Nafion-GOx-PDDA-SWNT/GC） was developed by immobilization of GOx-PDDA-SWNT nanocomposites on the surface of glassy carbon （GC） electrode using Nafion （5%） as a binder. The biosensor showed the electrocatalytic activity toward the oxidation of glucose under the presence of ferrocene monocarboxylic acid （FcM） as an electroactive mediator with a good stability, reproducibility and higher biological affinity. Under an optimal condition, the biosensor could be used to detection of glucose, presenting a typical characteristic of Michaelis-Menten kinetics with the apparent Michaelis-Menten constant of KM^app ca. 4.5 mmol/L, with a linear range of the concentration of glucose from 0.5 to 5.5 mmol/L （with correlation coefficient of 0.999） and the detection limit of ca. 83 μmol/L （at a signal-to-noise ratio of 3）. Thus the biosensor was useful in sensing the glucose concentration in serum since the normal glucose concentration in blood serum was around 4.6 mmol/L. The facile procedure of immobilizing GOx used in present work would promote the developments of electrochemical research for enzymes （proteins）, biosensors, biofuel cells and other bioelectrochemical devices.     

有关p-亚正规算子和对数亚正规算子广义Aluthge变换的一个注解

We shall give some results on generalized aluthge transformation for p-hyponormal and log-hyponormal operators.We shall also discuss the best possibility of these results.     

与障碍问题有关的一些正则性结果（英文）

本文考虑在强制和增长条件下的非齐次A-调和方程的解.使用Sobolev空间方法,得到局部正则性和局部有界性结果.这些结果是经典结果的推广.     

一种疏水缔合水溶性聚合物的合成及其溶液性能

粘度;抗盐性;表面活性剂;一种疏水缔合水溶性聚合物的合成及其溶液性能     

政务云计算中心运维管理系统的架构研究

通过分析云计算的特征和政务云计算中心的运维管理需求,运用系统层次性、复杂适应系统、面向服务的体系结构和IT服务管理等理论方法,提出了运维管理系统结构模型和功能模块．一个面向服务、合理分层、对IT资源重新组织的运维管理系统能有效地适应政务云计算中心快速发展变化的要求,并实现云计算中心高效管理和服务．     

Proof of the insecurity of quantum secret sharing based on the Smolin bound entangled states

This paper reconsiders carefully the possibility of using the Smolin bound entangled states as the carrier for sharing quantum secret. It finds that the process of quantum secret sharing based on Smolin states has insecurity though the Smolin state was reported to violate maximally the two-setting Bell-inequality. The general proof is given.     

黑虎虾Crustin的克隆表达纯化及抑菌活性测定

从黑虎虾血淋巴细胞中提取总RNA,经RT-PCR扩增编码Crustin成熟肽的cDNA序列,将其克隆至pMD18-T载体进行扩增,然后克隆到pET-32a(+)表达载体中,转化至E.coliOrigamiTM(DE3)中表达Crustin抗菌蛋白,后通过Ni2+亲和层析柱纯化获得Crustin蛋白,采用滤纸片扩散法检测该蛋白的抑菌活性