摘要：目的:探讨师范生时间管理倾向与自信、生活满意度之间的关系。方法:采用青少年时间管理倾向量表、青年学生自信量表和生活满意度量表对321名师范生进行调查分析。结果:1师范生的时间管理倾向存在显著的性别差异(t=2.482,P<0.05),女生的时间管理倾向明显高于男生;2艺术类师范生的生活满意度显著高于理科师范生(t=2.482,P<0.05);3不同年级师范生在生活满意度上存在显著差异,大四最高,大三最低(F=3.985,P<0.05);4师范生的时间管理倾向对其生活满意度(r=0.310,P<0.01)和自信(r=0.568,P<0.01)具有一定的影响。结论:师范生的时间管理倾向自信和生活满意度。

摘要：Electronic skins and flexible pressure sensors are important devices for advanced healthcare and intelligent *** is a key parameter of flexible pressure *** introducing surface microstructures in a capacitive-type sensor can significantly improve its sensitivity,the signal becomes nonlinear and the pressure response range gets much narrower,significantly limiting the applications of flexible pressure ***,we designed a pressure sensor that utilizes a nanoscale iontronic interface of an ionic gel layer and a micropillared electrode,for highly linear capacitance-to-pressure response and high sensitivity over a wide pressure *** micropillars undergo three stages of deformation upon loading:initial contact(0-6 k Pa)and structure buckling(6-12 k Pa)that exhibit a low and nonlinear response,as well as a post-buckling stage that has a high signal linearity with high sensitivity(33.16 k Pa-1)over a broad pressure range of 12-176 k *** high linearity lies in the subtle balance between the structure compression and mechanical matching of the two materials at the gel-electrode *** sensor has been applied in pulse detection,plantar pressure mapping,and grasp task of an artificial *** work provides a physical insight in achieving linear response through the design of appropriate microstructures and selection of materials with suitable modulus in flexible pressure sensors,which are potentially useful in intelligent robots and health monitoring.

摘要：浸制标本可以保持药用植物的原有形状和基本特征,其具有形态逼真、立体感强、识别不受季节限制等特点,在实践教学、科学研究、艺术观赏等方面具有不可代替的作用。红色作为药用植物中的一大色系,在保存过程中易受到pH值、温度、金属离子等多重内外界因素的影响,导致红色素易溶出,标本保色效果不理想。基于此,对红色药用植物的浸制标本制作、保存和影响因素等进行综述,以期为植物浸制标本固色保色技术和制作出高品质的植物标本提供一定的参考依据。

摘要：目的构建FGF19基因启动子区荧光素酶报告基因质粒,并研究分析其启动子区的转录活性和结合元件。方法设计特异性引物PCR扩增基因组DNA,得到长为3323bp的FGF19基因启动子区片段,将此PCR产物插入荧光素酶报告基因载体p GL3-Basic Vector,获得全长为3323bp的FGF19基因启动子区荧光素酶报告基因质粒。在此基础上设计特异性引物,构建5'端系列缺失荧光素酶报告基因质粒。通过瞬时转染实验检测所构建质粒的相对荧光素酶活性,分析不同启动子区片段对FGF19基因转录活性的影响,并用软件预测影响启动子转录活性的关键转录因子。结果构建了7个FGF19基因启动子区荧光素酶报告基因质粒,经双酶切和测序验证均正确。瞬时转染及荧光素酶报告基因分析实验发现启动子区-2351^-2316是调控FGF19启动子转录活性的重要序列,且在线软件预测该序列存在潜在的转录因子位点。结论 FGF19基因启动子区-2351^-2316是调控其启动子转录活性的关键位置。