检索结果-南通市图书馆

维普期刊数据库博看期刊

Study on Relationship between InGaAsP/InP LPE Wafer Morphology,Interface Property and Device Characteristics

在线全文

学校读者我要写书评

暂无评论

Rare Metals 1989年第2期9卷 43-48页

作者： Li, Weidan Fu, xiaomei pan, Huizhen Shanghai Inst of Metalurgy China

Five kinds of InGaAsP/InP heterostructure materials grown with LPE have been measured by means of Auger electron analysis, X-ray double-crystal diffraction, selective etching and surface morphology analysis. The relation between crystal mismatch and interface property of such materials has been studied and the results could be understood in terms of the growth kinetics at the heterojunction interface. The comparison of the characteristics of the electronic and optoelectronic devices fabricated with the wafers under different interface properties has been carried out. And it also has been demonstrated that the wafer surface morphology changes with the compositional gradation in a certain relationship.

关键词： Semiconducting Indium Compounds Morphology Semiconductor Devices Heterojunctions Semiconductor Diodes, Light Emitting Manufacture Spectroscopy, Auger Electron Applications Transistors, Photosensitive Manufacture

复发性流产患者感知压力与家庭关怀度及情绪状态的相关性研究

在线全文

学校读者我要写书评

暂无评论

妇儿健康导刊 2024年第17期3卷 189-193页

作者：胡晓云潘小妹黄淑婷中山大学孙逸仙纪念医院产科广东广州510120

目的了解复发性流产(RSA)患者感知压力的现状,分析RSA患者感知压力与家庭关怀度、情绪状态的相关性,为临床护理多元化干预提供依据。方法采用便利抽样法选取在中山大学孙逸仙纪念医院产科接受治疗的108例RSA患者,使用一般资料调查表... 详细信息

目的了解复发性流产(RSA)患者感知压力的现状,分析RSA患者感知压力与家庭关怀度、情绪状态的相关性,为临床护理多元化干预提供依据。方法采用便利抽样法选取在中山大学孙逸仙纪念医院产科接受治疗的108例RSA患者,使用一般资料调查表、中文版压力知觉量表(CPSS)、家庭关怀度指数问卷(APGAR)及正性负性情绪量表进行调查患者感知压力的现状,并分析RSA患者感知压力水平与家庭关怀度、情绪状态的相关性。结果最终纳入的104例患者中,CPSS总分为(24.97±7.04)分,APGAR总分为(7.51±2.32)分,正性情绪为(29.11±6.05)分,负性情绪为(24.00±6.33)分;RSA患者感知压力与APGAR总分及正性情绪呈负相关,与负性情绪呈正相关(P <0.05);单因素分析结果显示,CPSS得分与是否生育过子女、家庭月收入有关(P<0.05);多元线性回归分析结果显示,负性情绪可正向影响RSA患者感知压力水平,家庭关怀度、正性情绪可负向影响RSA患者感知压力水平(P <0.05)。结论 RSA患者存在一定的感知压力,且与家庭关怀度及情绪状态相关。

关键词：复发性流产感知压力情绪状态家庭关怀度

维普期刊数据库博看期刊

Tilianin extracted from Xiangqinglan(Herba Dracocephali Moldovicae)inhibits apoptosis induced by mitochondrial pathway and endoplasmic reticulum stress in H9c2 cells after oxygen-glucose deprivation/reoxygenation

在线全文

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2023年第1期43卷 42-50页

作者： JIANG Wen ZHANG Wei ZHANG Yuxiang YANG Hao pan xiaomei CHEN Qiang CHEN Junhui Department of Pharmacy the Sixth Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830000China Department of Anesthesiology the First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830000China Department of Laboratory the Sixth Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830000China

OBJECTIVE:To investigate the efficacy of tilianin extracted from Xiangqinglan(Herba Dracocephali Moldovicae)on apoptosis of H9c2 cell after oxygenglucose deprivation/reoxygenation(OGD/R)and the ***:Tilianin was obtained from Beijing Inluck Science and Technology Development ***.,with purity≥98%.The OGD/R model was established in H9c2 *** cytometry detected the mitochondrial membrane potential,apoptosis rates,mitochondrial reactive oxygen species(ROS)and calcium ion *** dehydrogenase(SDH)activity,succinate content and levels of tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interleukin-1β(IL-1β)were detected with enzyme-linked immunosorbent *** blot measured protein ***:Tilianin significantly reduced the apoptotic rates,ROS levels,calcium ion concentration,succinate content,and,levels of TNF-α,IL-6 and IL-1βof OGD/R cells,while significantly increased the membrane potential and SDH activity in *** blot analysis showed that tilianin significantly up-regulated pCalmodulin-dependent protein kinaseⅡand voltagedependent anion selective channel levels in OGD/R cells,while significantly down-regulated p-protein kinase B,Bcl-2-associated X,and dynamin-related protein 1 levels related to apoptosis in the mitochondrial ***,tilianin significantly up-regulated B-cell lymphoma-2 and mitochondrial protein 2 related to the inhibition of ***,tilianin downregulated phosphorylated-apoptosis signal-regulated kinase 1,phosphorylated-p38 and C/EBP homologous protein related to endoplasmic reticulum ***:Tilianin may inhibit OGD/R-induced H9c2 cell apoptosis mediated by mitochondrial pathway and endoplasmic reticulum stress,thus protecting cardiomyocytes.

关键词： apoptosis mitochondria endoplasmic reticulum stress tilianin oxygen-glucose deprivation/reoxygenation

“参与式”双语教学在核医学教学中的初步应用

在线全文

学校读者我要写书评

暂无评论

中华医学教育探索杂志 2024年第8期23卷 1046-1049页

作者：段东潘晓梅庞华管丽丽王洁重庆大学附属人民医院(重庆市人民医院)核医学科重庆400047 重庆医科大学附属第一医院核医学科重庆400016

目的探讨"参与式"双语教学在核医学教学中应用的可行性及价值。方法以相同的《核医学》课程章节为教学内容,对重庆医科大学2014级临床医学七年制及五年制的学生采用传统"灌输式"双语教学,对2015级采用"参与式"双语教学,以阶段性小测试... 详细信息

目的探讨"参与式"双语教学在核医学教学中应用的可行性及价值。方法以相同的《核医学》课程章节为教学内容,对重庆医科大学2014级临床医学七年制及五年制的学生采用传统"灌输式"双语教学,对2015级采用"参与式"双语教学,以阶段性小测试、问卷调查及期末测试评价两种教学模式的效果。结果在阶段性小测试中,"参与式"双语教学的平均成绩、病例分析成绩和英文题目成绩[七年制:(82.13±10.72)分、(35.74±4.13)分、(23.03±3.40)分;五年制:(78.66±12.75)分、(34.30±5.59)分、(22.45±2.91)分]均高于"灌输式"教学[七年制:(79.21±11.31)分、(33.86±5.23)分、(22.12±2.75)分;五年制:(75.29±10.81)分、(32.70±6.04)分、(21.36±3.09)分],差异具有统计学意义(P<0.05)。问卷调查结果显示,"参与式"教学总满意度优于"灌输式"教学。期末测试中"参与式"教学组的成绩亦优于"灌输式"教学,但差异不具有统计学意义。结论在临床医学专业学生的核医学教学过程中,"参与式"双语教学模式能显著提升教学效果,高效完成教学目标。

关键词：参与式教学双语教学核医学

Progressive loss of striatal dopamine terminals in MPTP-induced acute parkinsonism in cynomolgus monkeys using vesicular monoamine transporter type 2 PET imaging([^(18)F]AV-133)

在线全文

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2014年第3期30卷 409-416页

作者： Yajing Liu Feng Yue Rongping Tang Guoxian Tao xiaomei pan Lin Zhu Hank F.Kung Piu Chan Department of Neurobiology Xuanwu Hospital of Capital Medical University Key Laboratory of Neurodegenerative Diseases Ministry of Education Xuanwu Hospital of Capital Medical University Beijing Key Laboratory on Parkinson's Disease Wincon Theracells Biotechnologies Inc. Key Laboratory of Radiopharmaceuticals Beijing Normal University Department of Radiology University of Pennsylvania

The 1-methyl-4-phenyl-1,2,3,4-tetrahydropyridine （MPTP）-induced parkinsonism model, particularly in non-human primates, remains the gold-standard for studying the pathogenesis and assessing novel therapies for Parkinson＇s disease. However, whether the loss of dopaminergic neurons in this model is progressive remains controversial, mostly due to the lack of objective in vivo assessment of changes in the integrity of these neurons. In the present study, parkinsonism was induced in cynomolgus monkeys by intravenous administration of MPTP （0.2 mg/kg） for 15 days; stable parkinsonism developed over 90 days, when the symptoms were stable. Noninvasive positron emission tomographic neuroimaging of vesicular monoamine transporter 2 with 9-[18F] fluoropropyl-（＋）-dihydrotetrabenazine （[18F]AV-133） was used before, and 15 and 90 days after the beginning of acute MPTP treatment. The imaging showed evident progressive loss of striatal uptake of [18SF]AV-133. The dopaminergic denervation severity had a significant linear correlation with the clinical rating scores and the bradykinesia subscores. These findings demonstrated that [18F]AV-133 PET imaging is a useful tool to noninvasively evaluate the evolution of monoaminergic terminal loss in a monkey model of MPTP-induced parkinsonism.

关键词： Parkinson's disease non-human primate [18F]AV-133 VMAT2 positron emission tomography

Photothermal-chemical synthesis of P-S-H ternary hydride at high pressures

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第6期31卷 650-655页

作者： Tingting Ye Hong Zeng Peng Cheng Deyuan Yao xiaomei pan Xiao Zhang Junfeng Ding Key Laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The recent discovery of room temperature superconductivity(283 K)in carbonaceous sulfur hydride(C-S-H)has attracted much interest in ternary hydrogen rich *** this report,ternary hydride P-S-H was synthesized through a photothermal-chemical reaction from elemental sulfur(S),phosphorus(P)and molecular hydrogen(H_(2))at high pressures and room *** spectroscopy under pressure shows that H_(2)S and PH_(3) compounds are synthesized after laser heating at 0.9 GPa,and a ternary van der Waals compound P-S-H is synthesized with further compression to 4.6 *** P-S-H compound is probably a mixed alloy of PH_(3) and(H_(2)S)_(2)H_(2) with a guest-host structure similar to the C-S-H *** ternary hydride can persist up to 35.6 GPa at least and shows two phase transitions at approximately 23.6 GPa and 32.8 GPa,respectively.

关键词： hydride superconductor high pressure Raman spectroscopy

在线全文

学校读者我要写书评

暂无评论

阿达木单抗辅助治疗类风湿关节炎的效果

中外医药研究 2024年第22期3卷 30-32页

作者：潘晓梅马祖文刘婕妤张瑞陈军辉新疆医科大学第六附属医院药学部新疆维吾尔自治区乌鲁木齐830000 新疆医科大学第五附属医院药学部新疆维吾尔自治区乌鲁木齐830000

目的:探究阿达木单抗辅助治疗类风湿关节炎的效果。方法:选取2022年1月—2023年7月新疆医科大学第六附属医院收治的类风湿关节炎患者64例为研究对象,采用数字奇偶法分为研究组和对照组,各32例。对照组采用甲氨蝶呤片、来氟米特片、艾拉... 详细信息

目的:探究阿达木单抗辅助治疗类风湿关节炎的效果。方法:选取2022年1月—2023年7月新疆医科大学第六附属医院收治的类风湿关节炎患者64例为研究对象,采用数字奇偶法分为研究组和对照组,各32例。对照组采用甲氨蝶呤片、来氟米特片、艾拉莫德片常规治疗,研究组在对照组基础上采用阿达木单抗治疗。比较两组治疗效果、炎性指标[C反应蛋白(CRP)、肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、红细胞沉降率(ESR)]、不良反应发生率。结果:研究组治疗总有效率高于对照组,差异有统计学意义(P=0.045)。治疗前,两组CRP、TNF-α、IL-6、ESR水平比较,差异无统计学意义(P>0.05);治疗后,两组CRP、TNF-α、IL-6、ESR水平降低,研究组均低于对照组,差异有统计学意义(P<0.05)。研究组不良反应发生率低于对照组,差异有统计学意义(P=0.023)。结论:阿达木单抗辅助治疗类风湿关节炎的效果较好,可减轻炎性反应,降低不良反应发生率。

关键词：类风湿关节炎阿达木单抗炎性因子

EXTRACTION KINEIICS,MICELLIZATION AND INTERFACIAL CHARACTERISTICS OF A NEW EXTRACTANT SYSTEM

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1991年第9期4卷 157-163页

作者： YU Jingfen JI Chen pan xiaomei XIONG Yigang Tsinghua University,Beijing,China

The interfacial kinetics,micellization and interfacial characteristics of the synergetic extrac- tion system,D_2EHPA-H_2RPA-Al^(3+),have been studied.H_2RPA is a single long chain alkyl *** have found that H_2RPA in the mixed extractant system strongly exhibits the characteristics of micellization and interfacial *** the concentration of D_2EHPA in- creases,the micellization and interracial activity of H_2RPA *** interfacial adsorption behaviour of H_2RPA is opposite to that of D_*** was proved that the kine- tics of non-micella mixed extraction system was controlled by the chemical reaction at inter- face,and the reaction rate equation was *** non-micella mixed extraction system is expected to be used in the future.

关键词： D_2EHPA-H_2RPA-Al^(3+) extraction system AI micellization interfacial kinetics

Cheering On Women Journalists

在线全文

学校读者我要写书评

暂无评论

Women of China 1996年第12期 38-39页

作者： RU xiaomei pan ZHONGMING

RECENTLY, a special seminar on Lu Xiaofei’s news works was held at the People’s Daily, the most authoritative newspaper in China. Lu is editor-in-chief of the page "Local News of the Nation" for the People’s Daily. She is one of some 200 women journalists who has made a name for herself at the newspaper. Her work, Real Facts on the Issue of the Tibet Population, reflects the sensitivity

关键词： Cheering On Women Journalists Nation