Results 11 to 20 of about 19,597 (184)
经食道超声心动图监测下评估曲前列尼尔对瓣膜置换者肺动脉高压的缓解作用
Zhongguo shiyan zhenduanxue, 2021 目的研究经食道超声心动图(TEE)监测下评估曲前列尼尔对瓣膜置换者肺动脉高压的缓解作用。方法临床纳入2018年9月至2019年9月期间医院收治的风湿性瓣膜病合并肺动脉高压且拟行瓣膜置换术的45例患者作为研究对象,按随机数字表法将所选患者分为3组,分别为低剂量组、高剂量组和对照组,各15例。低剂量组患者术前实施6ng/(kg·min)曲前列尼尔静脉注射;高剂量组患者术前实施12ng/(kg·min)曲前列尼尔静脉注射;对照组患者术前实施生理盐水静脉注射。观察3组患者各时间点的血流动力学指标水平 ...
郭春燕, 吴莉
doaj
基于TGFβ1/Smad4信号通路探究人参四逆汤对亚临床甲状腺功能减退症大鼠心功能的影响
Zhongguo shiyan zhenduanxue, 2022 目的 基于转化生长因子β1(TGFβ1)/Smad同源物4(Smad4)信号通路探究人参四逆汤对亚临床甲状腺功能减退症(SCH)大鼠心功能的影响。方法 随机数字表法将60只大鼠分为假手术组、SCH组、L-T4组、低剂量组、高剂量组、高剂量+LY2109761组(TGFβ1/Smad4通路抑制剂LY2109761),10只/组；甲状腺全切术及术后皮下注射L-T4建造SCH模型大鼠，成功后各组分别灌胃相应剂量药物或生理盐水，为期30 d,实验结束观察大鼠一般状况；检测大鼠心功能指标 ...
高艳超, 柳越, 王岩, 孙永艳
doaj
Rare Metals, EarlyView.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
wiley +1 more source
3-溴丙酮酸调控JAK/STAT信号通路抗人卵巢癌细胞株A2780增殖的实验研究
Zhongguo shiyan zhenduanxue, 2020 目的探讨3-溴丙酮酸对人卵巢癌细胞株A2780增殖的抑制作用,并观察其对Janus激酶/信号转导子及转录激活子(JAK/STAT)信号通路的调控作用。方法取人卵巢癌细胞株A2780,培养至对数期,常规分装(1.5×106个/孔)至6孔板中,设置低、中、高剂量组和对照组,每组各包含5个复孔。继续培养待细胞贴壁生长后,3剂量组分别加入25、50、100μmol/L浓度的3-溴丙酮酸,对照组加入等量磷酸盐缓冲液(PBS),培养72h。对比各组培养期间细胞形态学变化,培养24h、48h和72h增殖抑制率变化 ...
郭云鸿, 王瑞芳, 田晓予
doaj
Rare Metals, EarlyView.ABSTRACT Silicon oxide (SiO) is becoming the main anode for high‐energy lithium‐ion batteries because of its ease of manufacture, outstanding cycling stability, and high capacity. However, low initial Coulombic efficiency (ICE) caused by the irreversible reaction of silica, as the main issue, strictly limits its commercial applications.
Hailong Mei +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2021 目的探讨患者个体因素对低剂量胸部CT显像质量的影响,以期为个性化扫描参数优化提供参考。方法随机抽取2020年1月-2020年6月于徐州医科大学附属医院影像科行低剂量胸部CT检查的患者124例作为研究对象,采用自制的一般资料调查表,收集患者的性别、年龄、体质指数(BMI)、胸廓前后径与横径比、胸围等。同时,由3名中级职称以上影像医师对CT显像质量进行评价,并采用单因素分析及多因素分析法分析患者因素对低剂量胸部CT显像质量的影响。结果单因素分析结果显示,患者的性别、年龄、体质指数、胸廓前后径与横径比 ...
曹栋栋, 胡春峰
doaj
Rare Metals, EarlyView.ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen +13 more
wiley +1 more source
Optimizing CuO on 3D Ordered Macroporous CeO2 for CO Oxidation in Rich Hydrogen
Rare Metals, EarlyView.ABSTRACT CO preferential oxidation (CO‐PROX) in rich H2 is considered a feasible strategy to solve CO poisoning for fuel cells, but obtaining good activity at low temperatures is still a challenge. Herein, three‐dimensional ordered macroporous (3DOM) CuO/CeO2 catalysts were fabricated by a templating approach, with the metal–support interaction (MSI ...
Xiaohua Chen +7 more
wiley +1 more source
Experimental Study on the Effects of Ciji Hua’Ai BaoSheng Decoction on Cytokines of Tumor Chemotherapy Model Mouse with H22 Hepatoma Carcinoma Cells [PDF]
, 2015 背景：癌症是一类严重危害人类生命健康的致死性疾病。化疗(Chemotherapy)是癌症临床治疗的经典方法之一，但化疗药物无选择性杀伤肿瘤细胞的同时，也杀伤正常细胞，带来较严重的副作用，严重影响患者生存质量及预后。慈济化癌保生汤(CHBF)是导师王彦晖教授临床多年诊治癌症所创立的经验方，该方用于癌症患者化疗后的长期调理，具有提高生存质量，改善体质、降低复发率及延长生存期的作用。前期研究证实[1]：慈济化癌保生颗粒能延长移植瘤和腹水瘤化疗模型小鼠的生存期，有一定的抑制化疗后移植瘤生长的作用 ...
GUAN JIE LOY
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