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基于HRM技术开发水稻糊化温度基因ALK功能标记 被引量:1
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作者 王军 周晶 +9 位作者 陶亚军 李文奇 朱建平 范方军 王芳权 许扬 陈智慧 蒋彦婕 李霞 杨杰 《中国水稻科学》 CAS CSCD 北大核心 2024年第1期106-110,共5页
【目的】糊化温度是影响稻米蒸煮食味品质的重要指标,ALK是控制水稻糊化温度的主效基因,开发可快速高通量鉴定ALK基因型的功能标记有助于提高水稻品质改良的效率。【方法】根据ALK基因4198位、4329位和4330位存在的单碱基差异,设计基于... 【目的】糊化温度是影响稻米蒸煮食味品质的重要指标,ALK是控制水稻糊化温度的主效基因,开发可快速高通量鉴定ALK基因型的功能标记有助于提高水稻品质改良的效率。【方法】根据ALK基因4198位、4329位和4330位存在的单碱基差异,设计基于HRM技术检测的基因功能标记。【结果】通过PCR检测结合测序分析,筛选了ALK基因2个功能区域的功能标记ALKH4、ALKH5。利用ALKH4、ALKH5对81份籼稻品种、279份粳稻品种进行了ALK基因型检测,结果发现,16份粳稻和19份籼稻为G-GC基因型;51份粳稻为A-GC基因型;212份粳稻和62份籼稻为G-TT基因型。【结论】基于HRM技术开发的基因功能标记ALKH4、ALKH5可以快速高通量鉴定控制糊化温度ALK不同基因型,具有重要的应用价值。 展开更多
关键词 水稻 糊化温度 ALK 功能标记 hrm技术
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基于UHPLC-Q-Exactive Orbitrap HRMS技术结合化学计量学方法的不同干燥处理杜仲叶成分分析 被引量:1
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作者 李淑芳 王会锋 +6 位作者 郝学飞 胡永建 李圆圆 马风莲 冯书惠 杨亚琴 于永杰 《分析测试学报》 CAS CSCD 北大核心 2024年第2期213-225,共13页
采用基于液质联用的非靶向代谢组学技术结合化学计量学数据自动解析软件AntDAS-LCHRMS分析了4种不同干燥处理(冻干、热泵烘干、电热烘干、晒干)杜仲叶样本中的化合物。杜仲叶样本数据由超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UH... 采用基于液质联用的非靶向代谢组学技术结合化学计量学数据自动解析软件AntDAS-LCHRMS分析了4种不同干燥处理(冻干、热泵烘干、电热烘干、晒干)杜仲叶样本中的化合物。杜仲叶样本数据由超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UHPLC-Q-Exactive Orbitrap HRMS)分别在正、负离子模式下进行采集,经AntDAS-LCHRMS软件解析,共鉴定出71种差异性化合物,经标准品验证确定40种化合物,包括环烯醚萜类、有机酸类、黄酮类、氨基酸类、核苷类、维生素类等9类物质。其中,正、负离子模式下均可识别并验证的化合物有车叶草苷、绿原酸、芦丁、异槲皮苷、车叶草苷酸、京尼平苷等25种化合物。层次聚类分析(HCA)及主成分分析(PCA)结果均显示,相同处理的杜仲叶样本各自聚成一类,不同处理的杜仲叶样本可明显区分。热图分析进一步揭示了不同干燥处理杜仲叶样本中差异性化合物的含量变化。晒干处理样本中苯丙氨酸及色氨酸等氨基酸类物质的水平较高;冻干及热泵烘干处理样本中有机酸类、环烯醚萜类、糖类等含量较高;电热烘干样本中核苷类、黄酮类物质的含量较高;黄酮类物质在冻干、热泵烘干及晒干样本中差异较小。研究结果为不同干燥处理杜仲叶的成分分析、品质评价及其开发应用提供了科学依据,也可为其他复杂药用植物体系的化学成分分析提供参考。 展开更多
关键词 杜仲叶 代谢组学 化学计量学 AntDAS-LChrmS软件 超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UHPLC-Q-Exactive Orbitrap hrmS) 干燥处理
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基于UHPLC-Orbitrap HRMS的盐酸二甲双胍及其片剂中N-亚硝基二甲胺的测定
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作者 吴静芳 李玮玲 《广州化工》 CAS 2024年第16期77-79,111,共4页
建立了测定盐酸二甲双胍及其片剂中N-亚硝基二甲胺(NDMA)的超高效液相色谱-静电场轨道阱高分辨质谱法(UHPLC-Orbitrap HRMS)。采用Waters XSelect CSH C18色谱柱(150 mm×3.0 mm,2.5μm),以0.1%甲酸水溶液-0.1%甲酸甲醇溶液为流动相... 建立了测定盐酸二甲双胍及其片剂中N-亚硝基二甲胺(NDMA)的超高效液相色谱-静电场轨道阱高分辨质谱法(UHPLC-Orbitrap HRMS)。采用Waters XSelect CSH C18色谱柱(150 mm×3.0 mm,2.5μm),以0.1%甲酸水溶液-0.1%甲酸甲醇溶液为流动相,梯度洗脱;大气压化学电离源(APCI),正离子模式,产物离子扫描。结果显示NDMA在1~100 ng/mL范围内线性关系良好,检测限和定量限分别为0.3 ng/mL和0.9 ng/mL,原料药和片剂的平均加标回收率分别为101.4%和98.5%。本方法专属性好、灵敏度和准确度高,适用于盐酸二甲双胍及其片剂中痕量遗传毒性杂质NDMA的检查与控制。 展开更多
关键词 UHPLC-Orbitrap hrmS N-亚硝基二甲胺 遗传毒性杂质 盐酸二甲双胍
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平台化HRM对组织适应性绩效的影响研究——有调节的双中介模型
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作者 刘翔宇 郑迁 《领导科学》 北大核心 2024年第3期31-37,共7页
基于动态能力理论,借鉴双元观理念,遵循“资源组合—动态能力—组织绩效”的研究范式,构建有调节的双中介模型。经分析可以发现:平台化HRM正向影响组织适应性绩效;技能柔性能力(技能延展性/技能多样性)在平台化HRM与组织适应性绩效之间... 基于动态能力理论,借鉴双元观理念,遵循“资源组合—动态能力—组织绩效”的研究范式,构建有调节的双中介模型。经分析可以发现:平台化HRM正向影响组织适应性绩效;技能柔性能力(技能延展性/技能多样性)在平台化HRM与组织适应性绩效之间起到双重中介作用;前瞻性战略正向调节平台化HRM与技能柔性能力(技能延展性/技能多样性)的关系,即存在有调节的双中介效应。 展开更多
关键词 平台化hrm 组织适应性绩效 技能柔性能力 前瞻性战略
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高职院校HRM数字化育人举措探析
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作者 马远 《市场周刊》 2024年第10期165-169,共5页
在数字化时代,数字化人才已经成为企业数字化转型的关键因素,对企业高质量发展产生重要影响。文章在分析数字化人才分类、培养高职院校HRM数字化人才存在的问题的基础上,提出高职院校HRM数字化人才培养的针对性策略:制订HRM数字化人才... 在数字化时代,数字化人才已经成为企业数字化转型的关键因素,对企业高质量发展产生重要影响。文章在分析数字化人才分类、培养高职院校HRM数字化人才存在的问题的基础上,提出高职院校HRM数字化人才培养的针对性策略:制订HRM数字化人才培养目标,构建数字化人才培养课程体系;注重加强学生数字化思维的培养,提高学生的数字化素养;搭建信息化教学平台;打造跨学科数字化师资队伍;开发高质量的数字化教学资源;建设良好的数字化校外实训教学基地。以期为我国数字化人才培养提供一些新思路、新举措。 展开更多
关键词 高职院校 hrm数字化人才 育人 举措
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基于UPLC-Q-Orbitrap HRMS及GC-MS结合网络药理学和分子对接的彝药黑根抗类风湿性关节炎的药效物质研究
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作者 赵倩 樊锦雅 古锐 《中药与临床》 2024年第3期52-60,共9页
目的:探讨彝药黑根治疗类风湿性关节炎潜在的作用机制以及主要活性成分。方法:运用UPLC-Q-Orbitrap HRMS及GC-MS技术分析黑根的化学成分,利用Swiss Target进行活性成分的靶点筛选和预测,同时在Genecard、OMIM、Dis Ge NET等数据库中筛... 目的:探讨彝药黑根治疗类风湿性关节炎潜在的作用机制以及主要活性成分。方法:运用UPLC-Q-Orbitrap HRMS及GC-MS技术分析黑根的化学成分,利用Swiss Target进行活性成分的靶点筛选和预测,同时在Genecard、OMIM、Dis Ge NET等数据库中筛选类风湿性关节炎相关靶点,利用Cytoscape3.9.0软件构建“活性成分-靶点”网络模型,运用String数据分析平台进行蛋白互作网络分析,并且利用基因富集分析在线工具对核心靶点进行GO富集分析和KEGG通路分析,最后使用分子对接对网络药理学内容进行初步验证。结果:共鉴定出黑根化学成分78个,筛选后活性成分50个,237个潜在作用靶点与类风湿性关节炎相关,包括STAT3、AKT1、EGFR等关键靶点。通路富集分析PI3K-Akt通路、JAK-STAT等信号通路可能是黑根发挥抗类风湿性关节炎的主要途径。通过分子对接技术得出主要活性成分(异绿原酸B、异绿原酸C)与关键靶点有较好结合力。结论:研究初步表明黑根通过多成分、多靶点、多途径治疗类风湿性关节炎的作用,为后续黑根物质基础研究提供了理论依据。 展开更多
关键词 黑根 超高效液相色谱-四极杆/静电场轨道阱高分辨质谱 网络药理学 分子对接 类风湿性关节炎
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UHPLC Q-Exactive Plus Orbitrap HRMS法鉴定隔山消提取物在功能性消化不良大鼠体内代谢产物
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作者 吴宗芹 勾健 +3 位作者 李勇军 陆苑 冉巧巧 孙佳 《中成药》 CAS CSCD 北大核心 2024年第9期2876-2884,共9页
目的建立UHPLC Q-Exactive Plus Orbitrap HRMS法鉴定隔山消提取物在功能性消化不良大鼠体内代谢产物。方法建立功能性消化不良大鼠模型。分析采用Hypersi 1 GOLD C_(18)色谱柱(2.1 mm×100 mm,1.9μm);流动相水(含0.1%甲酸)-乙腈(... 目的建立UHPLC Q-Exactive Plus Orbitrap HRMS法鉴定隔山消提取物在功能性消化不良大鼠体内代谢产物。方法建立功能性消化不良大鼠模型。分析采用Hypersi 1 GOLD C_(18)色谱柱(2.1 mm×100 mm,1.9μm);流动相水(含0.1%甲酸)-乙腈(含0.1%甲酸),梯度洗脱;体积流量0.3 mL/min;柱温40℃;电喷雾离子源;正负离子扫描。结果共鉴定出4种原型成分(白首乌二苯酮、去酰基萝藦苷元、青阳参苷元、丁香酸)及其110种代谢产物,其中粪便、尿液共有代谢产物12种,尿液特有代谢产物56种,粪便特有代谢产物42种。原型成分代谢途径包括Ⅰ相代谢(氧化、还原等)、Ⅱ相代谢(硫酸化、葡萄糖醛酸化等)及Ⅰ相、Ⅱ相复合反应。结论该方法高效全面,可为进一步寻找隔山消潜在活性代谢产物奠定基础。 展开更多
关键词 隔山消提取物 代谢产物 功能性消化不良 UHPLC Q-Exactive Plus Orbitrap hrmS
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基于UPLC-Q-Orbitrap HRMS代谢组学和16S rRNA基因测序探讨骨疏丹补肾机制
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作者 佟琳 冯啟圣 +4 位作者 张静 陆晴 石伟 赵龙山 熊志立 《沈阳药科大学学报》 CAS CSCD 2024年第6期675-685,698,共12页
目的 整合代谢组学和肠道微生物组学的研究策略探讨骨疏丹(Gushudan, GSD)预防氢化可的松诱导的肾阳虚证(kidney-yang deficiency syndrome, KYDS)大鼠的补肾作用机制。方法 分别采用超高效液相色谱-四级杆/静电场轨道阱高分辨质谱(UPLC... 目的 整合代谢组学和肠道微生物组学的研究策略探讨骨疏丹(Gushudan, GSD)预防氢化可的松诱导的肾阳虚证(kidney-yang deficiency syndrome, KYDS)大鼠的补肾作用机制。方法 分别采用超高效液相色谱-四级杆/静电场轨道阱高分辨质谱(UPLC-Q-Orbitrap HRMS)的非靶向代谢组学和16S rRNA基因测序分析的肠道微生物组学方法,分析正常对照组、肾阳虚证模型组、骨疏丹给药组和阳性对照组大鼠粪便代谢物谱与肠道菌群组成,采用Pearson相关分析探讨内源性差异代谢物与差异菌群之间的相关性。结果 基于UPLC-Q-Orbitrap HRMS的代谢组学方法在正负离子模式下共发现骨疏丹参与调控肾阳虚症的22种差异代谢物,如色氨酸、鹅去氧胆酸、肌酐和油酸酰胺等,主要涉及氨基酸代谢、胆汁酸代谢、能量代谢和脂质代谢。基于16S rRNA测序分析发现骨疏丹在属水平显著上调普雷沃氏菌(Prevotellaceae)的相对丰度(P<0.05),显著下调颤杆菌(Oscillibacter)的相对丰度(P<0.05)。相关性分析结果表明甘胆酸和鹅去氧胆酸与在属水平显著改变的普雷沃氏菌(Prevotellaceae)显著正相关(P<0.05),而与考拉杆菌(Phascolarctobacterium)显著负相关(P<0.05)。二十二碳六烯酸与毛螺菌(Lachnospiraceae)显著负相关(P<0.05)。结论 骨疏丹通过良性调节内源性代谢和肠道菌群结构发挥补肾作用,为中药通过肠-肾轴治疗疾病提供新的思路和方法。 展开更多
关键词 肾阳虚证 骨疏丹 代谢组学 肠道菌群 UPLC-Q-Orbitrap hrmS 16S rRNA基因测序
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基于UPLC-Q-Orbitrap HRMS结合网络药理学探讨半夏泻心汤入血成分及治疗脾虚型溃疡性结肠炎的作用机制
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作者 朱海燕 杨福权 +5 位作者 左秦川 房智彦 黄丽莉 淮文英 王艳秋 张天娥 《天然产物研究与开发》 CAS CSCD 北大核心 2024年第9期1610-1624,共15页
研究通过建立脾虚型溃疡性结肠炎(ulcerative colitis,UC)模型,采用液相芯片对大鼠血清中炎性细胞因子进行高通量检测,同时以HE染色对结肠组织进行炎症分级评分,验证半夏泻心汤(Banxia Xiexin Tang,BXT)对脾虚型UC的药理作用。随后利用... 研究通过建立脾虚型溃疡性结肠炎(ulcerative colitis,UC)模型,采用液相芯片对大鼠血清中炎性细胞因子进行高通量检测,同时以HE染色对结肠组织进行炎症分级评分,验证半夏泻心汤(Banxia Xiexin Tang,BXT)对脾虚型UC的药理作用。随后利用超高效液相色谱-四极杆/静电场轨道阱高分辨质谱(UPLC-Q-Orbitrap HRMS)对BXT入血成分进行分析,并结合网络药理学,探究BXT治疗脾虚型UC的作用机制。结果显示,UC能够增加大鼠血清中细胞因子白细胞介素-1α(interleukin-1α,IL-1α)、白细胞介素-10(interleukin-10,IL-10)、白细胞介素-18(interleukin-18,IL-18)、干扰素-γ(interferon-γ,IFN-γ)、肿瘤坏死因子(tumor necrosis factor-α,TNF-α)表达水平;BXT可降低血清炎性细胞因子含量,且BXT高剂量组(20 g/kg)下降最明显,无明显炎细胞浸润,表明BXT对脾虚型UC具有一定的治疗作用。大鼠血清中发现入血成分共20个;网络药理学筛选出BXT治疗UC相关靶点87个,涉及炎症反应、炎症反应调节、微生物反应等生物过程,参与了IL-17、脂质与动脉粥样硬化、糖尿病并发症中的AGE-RAGE信号通路、TNF等信号通路。综上可知,BXT治疗脾虚型UC可能与抑制肠道炎症、调节肠道微生物及保护肠道屏障等多个途径相关,从而达到治疗UC效果。 展开更多
关键词 半夏泻心汤 脾虚型溃疡性结肠炎 UPLC-Q-Orbitrap hrmS 入血成分 网络药理学 作用机制
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基于UHPLC-Q-Orbitrap HRMS雀嘴茶醇提液的成分及活性研究
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作者 王文博 袁甜甜 +6 位作者 吕玉秀 刘桢 谢东 张璟雯 赵平 陈保森 杨晓琴 《西南林业大学学报(自然科学)》 CAS 北大核心 2024年第1期176-184,共9页
基于超高效液相色谱串联四级杆/静电场轨道阱高分辨质谱快速分析雀嘴茶醇提液的成分,对其体外抗氧化活性和酪氨酸酶抑制活性进行研究。结果表明:从雀嘴茶醇提液中鉴定出1 321个代谢物,其中有1 085个代谢物包括11个超类匹配到人类代谢数... 基于超高效液相色谱串联四级杆/静电场轨道阱高分辨质谱快速分析雀嘴茶醇提液的成分,对其体外抗氧化活性和酪氨酸酶抑制活性进行研究。结果表明:从雀嘴茶醇提液中鉴定出1 321个代谢物,其中有1 085个代谢物包括11个超类匹配到人类代谢数据库中,含量较高的活性代谢物,包括新甘草苷、扁蓄苷、醋硝香豆素、槲皮素-3-O-葡萄糖苷桂皮鞣质B1等苯丙素类和芳香聚酮类、咖啡因等有机杂环化合物类、阿糖腺苷等核苷酸及其衍生物以及1-咖啡酰-β-D-葡萄糖、3-O-阿魏酰奎尼酸、绿原酸、2-O-咖啡酰熊果苷等咖啡酰类。雀嘴茶醇提液的DPPH·清除率可达93.56%,ABTS^(+)·清除率可达99.04%,OH·清除率可达94.82%,总还原能力随着醇提液中总多酚浓度的增加而升高且效果极为接近阳性对照抗坏血酸;对酪氨酸酶单酚酶和二酚酶的抑制率分别可达81.50%和58.58%。 展开更多
关键词 雀嘴茶 醇提液 静电场轨道阱高分辨质谱 抗氧化 酪氨酸酶 活性代谢物
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Patient satisfaction and follow-up adherence to glaucoma case management clinic in China 被引量:1
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作者 Hao Lin Hu-Jie Lu +3 位作者 Wen-Zhe Zhou Shu-Shu Zuo Yan-Yan Chen Shao-Dan Zhang 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第1期73-81,共9页
AIM:To assess glaucoma patient satisfaction and follow-up adherence in case management and identify associated predictors to improve healthcare quality and patient outcomes.METHODS:In this cross-sectional study,a tota... AIM:To assess glaucoma patient satisfaction and follow-up adherence in case management and identify associated predictors to improve healthcare quality and patient outcomes.METHODS:In this cross-sectional study,a total of 119 patients completed a Patient Satisfaction Questionnaire-18 and a sociodemographic questionnaire.Clinical data was obtained from the case management system.Follow-up adherence was defined as completing each follow-up within±30d of the scheduled time set by ophthalmologists during the study period.RESULTS:Average satisfaction scored 78.65±7,with an average of 4.39±0.58 across the seven dimensions.Age negatively correlated with satisfaction(P=0.008),whilst patients with follow-up duration of 2 or more years reported higher satisfaction(P=0.045).Multivariate logistics regression analysis revealed that longer follow-up durations were associated with lower follow-up adherence(OR=0.97,95%CI,0.95-1.00,P=0.044).Additionally,patients with suspected glaucoma(OR=2.72,95%CI,1.03-7.20,P=0.044)and those with an annual income over 100000 Chinese yuan demonstrated higher adherence(OR=5.57,95%CI,1.00-30.89,P=0.049).CONCLUSION:The case management model proves effective for glaucoma patients,with positive adherence rates.The implementation of this model can be optimized in the future based on the identified factors and extended to glaucoma patients in more hospitals. 展开更多
关键词 GLAUCOMA patient satisfaction follow-up adherence case management
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Personal Thermal Management by Radiative Cooling and Heating 被引量:1
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作者 Shidong Xue Guanghan Huang +3 位作者 Qing Chen Xungai Wang Jintu Fan Dahua Shou 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第8期225-267,共43页
Maintaining thermal comfort within the human body is crucial for optimal health and overall well-being.By merely broadening the setpoint of indoor temperatures,we could significantly slash energy usage in building hea... Maintaining thermal comfort within the human body is crucial for optimal health and overall well-being.By merely broadening the setpoint of indoor temperatures,we could significantly slash energy usage in building heating,ventilation,and air-conditioning systems.In recent years,there has been a surge in advancements in personal thermal management(PTM),aiming to regulate heat and moisture transfer within our immediate surroundings,clothing,and skin.The advent of PTM is driven by the rapid development in nano/micro-materials and energy science and engineering.An emerging research area in PTM is personal radiative thermal management(PRTM),which demonstrates immense potential with its high radiative heat transfer efficiency and ease of regulation.However,it is less taken into account in traditional textiles,and there currently lies a gap in our knowledge and understanding of PRTM.In this review,we aim to present a thorough analysis of advanced textile materials and technologies for PRTM.Specifically,we will introduce and discuss the underlying radiation heat transfer mechanisms,fabrication methods of textiles,and various indoor/outdoor applications in light of their different regulation functionalities,including radiative cooling,radiative heating,and dual-mode thermoregulation.Furthermore,we will shine a light on the current hurdles,propose potential strategies,and delve into future technology trends for PRTM with an emphasis on functionalities and applications. 展开更多
关键词 Personal thermal management Radiative cooling and heating Thermal comfort Dynamic thermoregulation
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Overview of the immunological mechanisms in hepatitis B virus reactivation:Implications for disease progression and management strategies 被引量:1
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作者 Hui Ma Qing-Zhu Yan +2 位作者 Jing-Ru Ma Dong-Fu Li Jun-Ling Yang 《World Journal of Gastroenterology》 SCIE CAS 2024年第10期1295-1312,共18页
Hepatitis B virus(HBV)reactivation is a clinically significant challenge in disease management.This review explores the immunological mechanisms underlying HBV reactivation,emphasizing disease progression and manageme... Hepatitis B virus(HBV)reactivation is a clinically significant challenge in disease management.This review explores the immunological mechanisms underlying HBV reactivation,emphasizing disease progression and management.It delves into host immune responses and reactivation’s delicate balance,spanning innate and adaptive immunity.Viral factors’disruption of this balance,as are interac-tions between viral antigens,immune cells,cytokine networks,and immune checkpoint pathways,are examined.Notably,the roles of T cells,natural killer cells,and antigen-presenting cells are discussed,highlighting their influence on disease progression.HBV reactivation’s impact on disease severity,hepatic flares,liver fibrosis progression,and hepatocellular carcinoma is detailed.Management strategies,including anti-viral and immunomodulatory approaches,are critically analyzed.The role of prophylactic anti-viral therapy during immunosuppressive treatments is explored alongside novel immunotherapeutic interventions to restore immune control and prevent reactivation.In conclusion,this compre-hensive review furnishes a holistic view of the immunological mechanisms that propel HBV reactivation.With a dedicated focus on understanding its implic-ations for disease progression and the prospects of efficient management stra-tegies,this article contributes significantly to the knowledge base.The more profound insights into the intricate interactions between viral elements and the immune system will inform evidence-based approaches,ultimately enhancing disease management and elevating patient outcomes.The dynamic landscape of management strategies is critically scrutinized,spanning anti-viral and immunomodulatory approaches.The role of prophylactic anti-viral therapy in preventing reactivation during immunosuppressive treatments and the potential of innovative immunotherapeutic interventions to restore immune control and proactively deter reactivation. 展开更多
关键词 Hepatitis B virus reactivation Immunological mechanisms Disease progression management strategies Immune response
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Heat transfer enhanced inorganic phase change material compositing carbon nanotubes for battery thermal management and thermal runaway propagation mitigation 被引量:1
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作者 Xinyi Dai Ping Ping +4 位作者 Depeng Kong Xinzeng Gao Yue Zhang Gongquan Wang Rongqi Peng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第2期226-238,I0006,共14页
Developing technologies that can be applied simultaneously in battery thermal management(BTM)and thermal runaway(TR)mitigation is significant to improving the safety of lithium-ion battery systems.Inorganic phase chan... Developing technologies that can be applied simultaneously in battery thermal management(BTM)and thermal runaway(TR)mitigation is significant to improving the safety of lithium-ion battery systems.Inorganic phase change material(PCM)with nonflammability has the potential to achieve this dual function.This study proposed an encapsulated inorganic phase change material(EPCM)with a heat transfer enhancement for battery systems,where Na_(2)HPO_(4)·12H_(2)O was used as the core PCM encapsulated by silica and the additive of carbon nanotube(CNT)was applied to enhance the thermal conductivity.The microstructure and thermal properties of the EPCM/CNT were analyzed by a series of characterization tests.Two different incorporating methods of CNT were compared and the proper CNT adding amount was also studied.After preparation,the battery thermal management performance and TR propagation mitigation effects of EPCM/CNT were further investigated on the battery modules.The experimental results of thermal management tests showed that EPCM/CNT not only slowed down the temperature rising of the module but also improved the temperature uniformity during normal operation.The peak battery temperature decreased from 76℃to 61.2℃at 2 C discharge rate and the temperature difference was controlled below 3℃.Moreover,the results of TR propagation tests demonstrated that nonflammable EPCM/CNT with good heat absorption could work as a TR barrier,which exhibited effective mitigation on TR and TR propagation.The trigger time of three cells was successfully delayed by 129,474 and 551 s,respectively and the propagation intervals were greatly extended as well. 展开更多
关键词 Inorganic phase change material Carbon nanotube Battery thermal management Thermal runaway propagation Fire resistance ENCAPSULATION
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Whole-process case management effects on mental state and selfcare ability in patients with liver cancer 被引量:1
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作者 Man-Di Ju Qin Qin Meng Li 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第3期833-841,共9页
BACKGROUND Regarding the incidence of malignant tumors in China,the incidence of liver cancer ranks fourth,second only to lung,gastric,and esophageal cancers.The case fatality rate ranks third after lung and cervical ... BACKGROUND Regarding the incidence of malignant tumors in China,the incidence of liver cancer ranks fourth,second only to lung,gastric,and esophageal cancers.The case fatality rate ranks third after lung and cervical cancer.In a previous study,the whole-process management model was applied to patients with breast cancer,which effectively reduced their negative emotions and improved treatment adherence and nursing satisfaction.METHODS In this single-center,randomized,controlled study,60 randomly selected patients with liver cancer who had been admitted to our hospital from January 2021 to January 2022 were randomly divided into an observation group(n=30),who received whole-process case management on the basis of routine nursing mea-sures,and a control group(n=30),who were given routine nursing measures.We compared differences between the two groups in terms of anxiety,depression,the level of hope,self-care ability,symptom distress,sleep quality,and quality of life.RESULTS Post-intervention,Hamilton anxiety scale,Hamilton depression scale,memory symptom assessment scale,and Pittsburgh sleep quality index scores in both groups were lower than those pre-intervention,and the observation group had lower scores than the control group(P<0.05).Herth hope index,self-care ability assessment scale-revision in Chinese,and quality of life measurement scale for patients with liver cancer scores in both groups were higher than those pre-intervention,with higher scores in the observation group compared with the control group(P<0.05).CONCLUSION Whole-process case management can effectively reduce anxiety and depression in patients with liver cancer,alleviate symptoms and problems,and improve the level of hope,self-care ability,sleep quality,and quality of life,as well as provide feasible nursing alternatives for patients with liver cancer. 展开更多
关键词 Liver cancer Mental state Self-care ability Whole-process case management Life quality NURSING
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Systematic review of risk factors,prognosis,and management of colorectal signet-ring cell carcinoma 被引量:1
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作者 Frederiek Nuytens Vincent Drubay +2 位作者 Clarisse Eveno Florence Renaud Guillaume Piessen 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第5期2141-2158,共18页
BACKGROUND Colorectal signet-ring cell carcinoma(CSRCC)is a rare clinical entity which accounts for approximately 1%of all colorectal cancers.Although multiple studies concerning this specific topic have been publishe... BACKGROUND Colorectal signet-ring cell carcinoma(CSRCC)is a rare clinical entity which accounts for approximately 1%of all colorectal cancers.Although multiple studies concerning this specific topic have been published in the past decades,the pathogenesis,associated risk factors,and potential implications on treatment are still poorly understood.Besides the low incidence,historically confusing histological criteria have resulted in confusing data.Nevertheless,the rising incidence of CSRCC along with relatively young age at presentation and associated dismal prognosis,highlight the actual interest to synthesize the known literature regarding CSRCC.AIM To provide an updated overview of risk factors,prognosis,and management of CSRCC.METHODS A literature search in the MEDLINE/PubMed database was conducted with the following search terms used:‘Signet ring cell carcinoma’and‘colorectal’.Studies in English language,published after January 1980,were included.Studies included in the qualitative synthesis were evaluated for content concerning epidemiology,risk factors,and clinical,diagnostic,histological,and molecular features,as well as metastatic pattern and therapeutic management.If possible,presented data was extracted in order to present a more detailed overview of the literature.RESULTS In total,67 articles were included for qualitative analysis,of which 54 were eligible for detailed data extraction.CSRCC has a reported incidence between 0.1%-2.4%and frequently presents with advanced disease stage at the time of diagnosis.CSRCC is associated with an impaired overall survival(5-year OS:0%-46%)and a worse stagecorrected outcome compared to mucinous and not otherwise specified adenocarcinoma.The systematic use of exploratory laparoscopy to determine the presence of peritoneal metastases has been advised.Surgery is the mainstay of treatment,although the rates of curative resection in CSRCC(21%-82%)are lower compared to those in other histological types.In case of peritoneal metastasis,cytoreductive surgery with hyperthermic intraperitoneal chemotherapy should only be proposed in selected patients.CONCLUSION CSRCC is a rare clinical entity most often characterized by young age and advanced disease at presentation.As such,diagnostic modalities and therapeutic approach should be tailored accordingly. 展开更多
关键词 Colorectal cancer Signet-ring cell histology Poorly cohesive cells Systematic review Risk factors PROGNOSIS Therapeutic management
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基于UPLC-Q-Orbitrap-HRMS技术的葛根-丹参药对化学成分分析
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作者 卢洋 邓小惠 +5 位作者 吴梦瑶 陈萱 陈祥雯 杨宇辉 曹纪亮 万丽 《中南药学》 CAS 2024年第9期2380-2386,共7页
目的采用超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UPLC-Q-Orbitrap-HRMS)技术分别对以水和50%甲醇溶液为溶剂提取的葛根-丹参药对样品进行化学成分分析。方法采用Thermo Scientific Hypersil GOLD C_(18)色谱柱(150 mm×2.1 ... 目的采用超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UPLC-Q-Orbitrap-HRMS)技术分别对以水和50%甲醇溶液为溶剂提取的葛根-丹参药对样品进行化学成分分析。方法采用Thermo Scientific Hypersil GOLD C_(18)色谱柱(150 mm×2.1 mm,1.9μm),以0.1%甲酸水-0.1%甲酸乙腈溶液为流动相进行梯度洗脱,流速为0.3 mL·min^(-1),柱温为30℃。采用加热电喷雾离子源(H-ESI),正负离子检测模式。结果从水提和50%甲醇醇提样品溶液中均鉴定出104个化合物,其中103个化合物为共有成分,各有1个差异性成分,分别为水提样品中的刺槐苷与50%甲醇醇提样品中的降丹参酮(或其同分异构体)。共鉴定出的105个化合物,包括黄酮类成分36个、苯丙素类成分20个、萜类成分24个和其他类成分25个。结论本研究首次采用UPLC-Q-Orbitrap-HRMS技术对葛根-丹参药对的主要成分进行鉴定,可为葛根-丹参药对的药效成分研究提供科学依据。 展开更多
关键词 葛根-丹参药对 UPLC-Q-Orbitrap-hrmS 化学成分
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Application of Specialized Group Management in the Quality Control of Perioperative Nursing 被引量:2
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作者 Cong Fu Xuefei Li +4 位作者 Li Wang Yuanyuan Jiang Xinrong Qi Chen Ding Shanshan Tang 《Journal of Clinical and Nursing Research》 2024年第2期70-75,共6页
Objective:To explore the role of specialized group management in the quality control of perioperative nursing.Methods:45 surgical nurses from our hospital were selected as the research subjects.Traditional operating r... Objective:To explore the role of specialized group management in the quality control of perioperative nursing.Methods:45 surgical nurses from our hospital were selected as the research subjects.Traditional operating room management was adopted from July 2019 to June 2020,and specialized group management was adopted from July 2020 to June 2021.The surgeon’s satisfaction,surgical nurses’core professional competence,and surgical patients’satisfaction were obtained through surveys and the results were analyzed.Results:Surgeon satisfaction before the implementation of specialized group management was significantly lower than after its implementation(P<0.05).Besides,surgical nurses’core professional competency scores before the implementation of specialized group management were significantly lower than after its implementation(P<0.05).Lastly,surgical patients’satisfaction before the implementation of specialized group management was significantly lower than after its implementation(P<0.05).Conclusion:Specialized group management helps to improve the quality of perioperative care and should be applied in clinical practice. 展开更多
关键词 Specialized group management Operating room Quality of care CONTROL
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The Chinese guideline for management of snakebites
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作者 Rongde Lai Shijiao Yan +19 位作者 Shijun Wang Shuqing Yang Zhangren Yan Pin Lan Yonggao Wang Qi Li Jinlong Wang Wei Wang Yuefeng Ma Zijing Liang Jianfeng Zhang Ning Zhou Xiaotong Han Xinchao Zhang Mao Zhang Xiaodong Zhao Guoqiang Zhang Huadong Zhu Xuezhong Yu Chuanzhu Lyu 《World Journal of Emergency Medicine》 SCIE CAS CSCD 2024年第5期333-355,共23页
In 2009,the World Health Organization included snakebite on the list of neglected tropical diseases,acknowledging it as a common occupational hazard for farmers,plantation workers,and others,causing tens of thousands ... In 2009,the World Health Organization included snakebite on the list of neglected tropical diseases,acknowledging it as a common occupational hazard for farmers,plantation workers,and others,causing tens of thousands of deaths and chronic physical disabilities every year.This guideline aims to provide practical information to help clinical professionals evaluate and treat snakebite victims.These recommendations are based on clinical experience and clinical research evidence.This guideline focuses on the following topics:snake venom,clinical manifestations,auxiliary examination,diagnosis,treatments,and prevention. 展开更多
关键词 SNAKEBITE ENVENOMATION management PREVENTION
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Estimation of the Direct Cost of Management of Venous Thromboembolism in Three Reference Hospitals in the City of Yaoundé: A Retrospective Study over a Three-Year Period
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作者 Hamadou Ba Nganou-Ngnindjio Chris Nadège +5 位作者 Tatchim Samuel Aimé Kamdem Félicité Tchoukoua Serge Honoré Ahmadou Jingi Danwe Dieudonne Kingue Samuel 《World Journal of Cardiovascular Diseases》 CAS 2024年第2期99-114,共16页
Background: Venous thromboembolism (VTE) is a major public health problem due to its increasing frequency, mortality and management cost. This cost may require major financial efforts from patients, especially in deve... Background: Venous thromboembolism (VTE) is a major public health problem due to its increasing frequency, mortality and management cost. This cost may require major financial efforts from patients, especially in developing countries like ours where less than 7% of the population has health insurance. This study aimed to estimate the direct cost of managing VTE in three reference hospitals in Yaoundé. Methods: This was a cross-sectional retrospective study over a three-year period (from January 1st 2018 to December 31 2020) carried out in the Cardiology departments of the Central and General Hospitals, and the Emergency Centre of the city of Yaoundé. All patients managed during the study period for deep vein thrombosis and pulmonary embolism confirmed by venous ultrasound coupled with Doppler and computed tomography pulmonary angiography respectively were included. For each patient, we collected sociodemographic and clinical data as well as data on the cost of consultation, hospital stay, workups and medications. These data were analysed using SPSS version 23.0. Results: A total of 92 patient’s records were analysed. The median age was 60 years [48 - 68] with a sex ratio of 0.53. The median direct cost of management of venous thromboembolism was 766,375 CFAF [536,455 - 1,029,745] or $1415 USD. Management of pulmonary embolism associated with deep vein thrombosis was more costly than isolated pulmonary embolism or deep vein thrombosis. Factors influencing the direct cost of management of venous thromboembolism were: hospital structure (p = 0.015), health insurance (p 0.001), type of pulmonary embolism (p = 0.021), and length of hospital stay (p = 0.001). Conclusion: Management of VTE is a major financial burden for our patients and this burden is influenced by the hospital structure, health insurance, type of pulmonary embolism and length of hospital stay. 展开更多
关键词 COST management Venous Thromboembolism Yaoundé
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