The Protection and Utilization of Traditional Residence in City——Take No.31 Pingjiang Road in Suzhou as example

本文通过对苏州平江路31号改造工程的解读对城市传统民居的保护与再利用问题作了一些初步的探讨,认为适当的有机更新和功能转换才是对城市传统民居最好的保护方式。This article discusses the problem on the protection and utilization of the traditional residence in city shallowly by the reconstruction project of No.31 Pingjiang Road in Suzhou,points out that organic renewal is the best way for protection of traditional residence

茶叶中儿茶素、咖啡因和叶绿素的制取和分析鉴定研究

采用多阶式分离提取技术从茶叶中提取分离出三种有应用价值的成分。根据其理化性质和高压液相色谱、红外光谱的测定结果，确定这三种成分为儿茶素、咖啡因和叶绿素。同时进一步分析鉴定了儿茶素中主要的四种成分为（—）—表没食子儿茶素（EgC）、（—）—表儿茶素（EC）、（—）—表没食子儿茶素没食子酸酯（EgCg）和（—）—表儿茶素没食子酸酯（ECg）

REMARKS ON JOHN DISKS

Let D■R2 be a Jordan domain,D*=R2\D,the exterior of D.In this article,the authors obtained the following results:(1)If D is a John disk,then D is an outer linearly locally connected domain;(2)If D* is a John disk,then D is an inner linearly locally connected domain;(3)A homeomorphism f:R 2 →R 2 is a quasiconformal mapping if and only if f(D)is a John disk for any John disk D■R 2 ;and(4)If D is a bounded quasidisk,then D is a John disk,and there exists an unbounded quasidisk which is not a John disk

福建省农村饮用水水源水质卫生学研究

为了解福建省农村饮用水水源水质卫生状况,以保障人体健康及提高我省农村饮用水水源水质卫生质量及水源卫生防护提供科学依据。我们对福建省29个有代表性的县饮用水水源及其水质按国家GB5750-85《生活饮用水标准检验法》进行了检测,根据国家《农村实施(生活饮用水卫生标准)准则》进行评价

分子内电荷转移荧光探针法测定表面活性剂的临界胶束浓度

研究了分子内电荷转移荧光体4-二甲氨基查尔酮(DMAC)在表面活性剂水溶液中的荧光光谱。观察到随表面活性剂浓度增大,DMAC 的荧光光谱先红移然后蓝移,而荧光强度呈“S”型变化并于光谱位移方向转折处突跃。突跃处对应的表面活性剂浓度即为其临界胶束浓度(cmc)。结果表明由该法测定的 cmc 与已报道值符合,说明方法的可行性与准确性。用该法测定表面活性剂/β-环糊精混合体系的 cmc,表明β-环糊精的存在诱导了胶束的形成

气功在延缓某些心理功能衰老中的作用

对122名练气功二年以上老年人及90名从未练过气功的老年人用抑郁自评量表(SDS)、焦虑自评量表(SAS)、睡眠情况调查表等进行了调查:同时也进行了动作稳定性、同步听觉系列加法测验、符号划消测验等测查。结果表明气功对改善老年人的抑郁、焦虑症状,睡眠质量,以及动作稳定性等有一定作用

Expression and significance of Fabp4 in FGR PIH GDM women′s placenta

目的探讨脂肪酸结合蛋白(fAbP4)基因及其蛋白在胎儿生长受限(fgr)、妊娠期糖尿病(gdM)、妊娠期高血压疾病(PIH)这3种病理性妊娠患者胎盘组织中的表达及意义。方法采用免疫组织化学的方法检测fAbP4蛋白在3种病理性妊娠患者胎盘组织中的表达差异,采用荧光实施定量PCr的方法对fAbP4的MrnA在3种病理性妊娠患者胎盘组织中的表达进行相关性分析。结果免疫细胞化学检测发现在这3种病理性妊娠患者的胎盘中,fAbP4的蛋白表达明显高于正常组的胎盘。而通过实时定量检测发现fAbP4的MrnA表达水平在3种病理性妊娠患者胎盘中也高于正常组,其中胎儿生长受限组的MrnA表达水平明显高于正常组,差异具有统计学意义(P<0.05)。结论 fAbP4蛋白和MrnA在fgr、gdM、PIH这3种病理性妊娠患者胎盘中的表达均升高,提示fAbP4可能与这3种病理性妊娠有重要关系。Objective To elucidate the expression and significance of Fabp4 in the placenta of Fetal growth restriction(FGR),Gestational diabetes mellitus(GDM) and Hypertensive disorders in pregnancy(PIH).Methods The difference of protein of Fabp4 detected by immunohistochemically and analysis the differently expression of Fabp4 mRNA using the method of real-time PCR in the placenta of FGR,PIH and GDM.Results The expression of protein and Fabp4 mRNA in the placenta of FGR,PIH and GDM were higher than that in normal,especially the disparity in the placenta of FGR was obvious,having the statistical significance.Conclusion The higher expression of protein and mRNA of Fabp4 in the placenta of FGR,PIH and GDM suggest that Fabp4 has a relationship with FGR,GDM and PIH.南京军区医药卫生重点科研项目(2007Z018);厦门市社会发展科技项目(3502Z20074030

Logging Response Characteristics of Gas Hydrate Formation in Shenhu Area of the South China Sea

分析了南海北部神狐海域含天然气水合物沉积层声波速度及密度的分布特征和变化规律,并通过对比dSdP 84航次570号钻孔含天然气水合物层段测井资料,总结出神狐海域含水合物地层的测井响应规律特征:神狐海域含水合物地层存在着明显的高声波速度、低密度特征,地层密度随声波速度的变化并不是单一的反比例关系,总体趋势上随声波速度的升高而降低;含水合物地层高声波速度值主要集中在197--220 M段,饱和度值在15%--47%之间,低密度值集中在200--212 M段,分布在水合物饱和度大于20%的地层内;含水合物地层声波速度平均值为2 076 M/S,其上覆和下伏地层的声波速度平均值为1 903 M/S和1 892 M/S,所对应的地层密度值分别为1.89 g/CM3、1.98 g/CM3和2.03 g/CM3,声波速度受孔隙度和饱和度的共同影响,地层密度受水合物饱和度影响较大;从水合物上覆地层到声波速度最高值段,声波速度值增加了9.1%,相对应的地层密度值减少了4.55%,从水合物声波速度最高值段到下伏地层,声波速度值减少了8.86%,相对应的地层密度值增加了7.41%。这些测井响应特征,可用来识别地层中天然气水合物,并可以用来计算水合物的饱和度,同时结合其他地质和地球物理资料,确定水合物层的厚度、分布范围,计算天然气水合物的资源量。With analysis of the distributing feature and the changing law of the sonic velocity and density of sediments with gas hydrate in Shenhu Area of the South China Sea,by comparing with logging data of gas hydrate formation at Site 570 of DSDP 84,the logging response characteristics of gas hydrate formation in Shenhu Area were conducted.The results show that:(1)Sediments with gas hydrate in Shenhu Area have the clear features that the sonic velocity is high and density is low,and the density is generally decreased with the increasing of the sonic velocity.(2)The high sonic velocity section in sediments with gas hydrate is in the depth of 197 to 220 m,and the low density section is in the depth of 200 to 212 m;the value of saturation is in the range of 15%to 47%.(3)The average sonic velocities of sediments with gas hydrates and the overlying strata and underlying strata are 2,076 m/s,1,903 m/s and 1,892 m/s,respectively,and the corresponding densities are 1.89 g/cm3,1.98 g/cm3 and 2.03 g/cm3,respectively;sonic velocity is effected by porosity and saturation,and density is greatly influenced by saturation;(4) The sonic velocity increases by 9.1% from the overlying strata of hydrates to the maximum-value section,and the corresponding density decreased by 4.55%;the sonic velocity decreases by 8.86% from the maximum-value section to the underlying strata of hydrates,and the corresponding density increases by 7.41%.The logging response characteristics can be used to identify the existence of gas hydrates and to calculate the saturation of gas hydrate,furthermore,to provide accurate area and thickness of gas hydrate zone for calculating gas hydrates reserves with combination of other geological and geophysical data.中国科学院边缘海地质重点实验室项目(MSGL08-03);国家重点基础研究发展计划(2009CB219508

人红细胞凝集型单抗的制备与鉴定

目的制备人红细胞凝集型单克隆抗体并进行鉴定。方法以3种方式处理人血红细胞,获得红细胞免疫原,分别免疫Balb/c小鼠。应用杂交瘤技术,取免疫小鼠的脾细胞与Sp2/0骨髓瘤细胞融合,以凝集实验筛选分泌凝集型抗体的杂交瘤细胞,继而用有限稀释法克隆3次,并对杂交瘤细胞的稳定性进行测定。通过腹水法制备抗体,亲和层析法纯化抗体,对抗体的特性进行研究。结果 3种方式获得的免疫原均能建立有效的免疫反应,低渗加超声破碎法所获得的小鼠血清抗体效价最高。通过融合获得8株可稳定分泌抗体的杂交瘤细胞,其中,4A1分泌的抗体凝集效价最高。抗体可使4种人血型的红细胞凝集,无种属交叉凝集反应。结论有效制备了针对人红细胞的凝集性单抗,为其之后的应用研究奠定了基础。福建省省属公益类项目(2015R1036-3,2016R1034-2,2017R1036-3);;福建省科技计划(2014Y0082,2014Y0083

从预防事故和消除隐患的角度改进实验室安全工作

从预防实验室事故和消除安全隐患的角度,分析归纳出安全意识淡薄、安全知识缺乏、安全条例执行不到位、工作人员心理疲劳等导致实验室事故和安全隐患的深层次原因,以及这些原因之间的相互影响,并从安全教育教学、人事考核、实验室团队建设、信息化建设等方面对实验室安全工作提出相应的改进对策与建议