意象审美在现代陶瓷创作中的应用

人类对于美的感叹常常借由各类艺术创作而抒发,我国有浓厚的文化背景,对文化和艺术传承的感情浓厚,因此在艺术创作中使用的各种意象也十分丰富。陶瓷创作在艺术创作中占有重要的地位,它历史悠久,种类繁多,层次多样,具有深刻的研究意义。本文具体分析了意象审美在现代陶瓷创作过程中的应用,主要涉及内容为陶瓷创作的工艺、釉色、颜色、材料和肌理,论述了意象审美在其中的应用特点,分析了现代陶瓷创作受意象审美影响的程度。

NANOG Alleviates the Damage of Human Hair Follicle Mesenchymal Stem Cells Caused by H_2O_2 through Activation of AKT Pathway

Objective To explore the protective effect of NANOG against hydrogen peroxide(H_2O_2)-induced cell damage in the human hair follicle mesenchymal stem cells(hHF-MSCs). Methods NANOG was expressed from a lentiviral vector, pLVX-IRES-ZsGreen. NANOG hHF-MSCs and vector hHF-MSCs were treated with 400 μmol/L hydrogen peroxide(H_2O_2) for 2 h, the cell survival rate, cell morphology, ROS production, apoptosis and expression of AKT, ERK, and p21 were determined and compared. Results Our results showed that NANOG could activate AKT and upregulate the expression of p-AKT, but not p-ERK. When treated with 400 μmol/L H_2O_2, NANOG hHF-MSCs showed higher cell survival rate, lower ROS production and apoptosis, higher expression of p-AKT, higher ratio of p-AKT/AKT. Conclusion Our results suggest that NANOG could protect hHF-MSCs against cell damage caused by H_2O_2 through activating AKT signaling pathway.

修订版Valsalva动作在阵发性室上性心动过速急诊患者中的应用

目的观察修订版Valsalva动作在阵发性室上性心动过速(paroxysmal supraventricular tachycardia,PSVT)急诊患者中的应用效果。方法选择240例PSVT患者,采用涂层刮卡法分为标准版Valsalva动作组和修订版Valsalva动作组,每组120例。比较2组患者转复成功率,1次转复成功率,不同就诊时间段[<1 h、1~3 h(不含3 h)、3~6 h(不含6 h)、6~12 h、>12 h)复律效率和转复期间不良反应发生情况。结果1 h内修订版Valsalva动作组在1次转复成功率方面高于标准版Valsalva动作组,差异有统计学意义(P<0.05);1~12 h就诊时间段修订版Valsalva动作组总的转复成功率和1次转复成功率方面均高于标准版Valsalva动作组,差异有统计学意义(P<0.05)。2组患者治疗期间不良反应发生率差异无统计学意义(P>0.05)。结论修订版Valsalva动作相比标准版Valsalva动作在发病12 h内能够提高PSVT患者转复成功率,复律效果好,安全性高,适宜急诊院前和院内抢救推广应用。