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Journal of Geographical Sciences 2001年第4期11卷 110-120页

作者： HE Da-ming liuxiu-juan Asian International River Centre Y unnan UniversityKumming 650091China Australian Mekong Resource Center Sydney UniversitySydneyAustralia

Western China includes 12 provincial divisions (the 7 provinces of Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai and; 5 autonomous regions of Tibet, Ningxia, Xinjiang, Inner Mongolia and Guangxi; and one city of Chongqing), which comprise 71.4% of the national land area, 28.5% of the national population and produce 17.5% of the national GDP in China. There are 17 countries that have riparian relationships with western China, most of which are water-short countries. All are listed by UN ESCAP as countries with potential water crisis. The co-operative development and coordinated management of international rivers in western China is an important step toward the implementation of the national Great Western Development program. Taking into account of the national strategy and object hierarchy, as well as the development demand of the western region, it is necessary to pursue the multi-disciplinary study of the equitable allocation, utilisation, and eco-environment protection of transboundary water resources in the region. Such efforts will undoubtedly provide scientific evidence and support for the decision-making of the environmental protection and ecological construction and management in the western regions, the enforcement of the sub-regional economic co-operation, mitigation of trans-boundary conflicts, and enhancing bio-diversity conservation.

关键词： water resources utilisation water resources protection international rivers western China

Isolation and Identification of Capillarin from Artemisia Ordosica Kraschen

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Chinese Journal of Structural Chemistry 2005年第6期24卷 637-640页

作者： ZHAODong-Bao JIANGYan-Feng XIChan-juan liuxiu-Hua WANGHan-Qing KeyLaboratory.forNaturalMedicineofGansuProvince LanzhouInstituteofChemicalPhysicsTheChineseAcademyofSciencesLanzhou730000China DepartmentofChemistry TsinghuaUniversityBeijing100084China CollegeofChemistryandChemicalEngineering HenanUniversityKaifeng475001China

Capillarin was isolated from Artemisia Ordosica Kraschen and characterized by IR, 1H-NMR, 13C-NMR, 1H-1HCOSY, HMQC, HMBC and EIMS, and its crystal structure was determined by single-crystal X-ray diffraction analysis with the following data: triclinic, space group P1, Z = 2, a = 7.226(6), b = 7.297(6), c = 11.042(8) ?, α = 74.695(12), β = 78.479(12), γ = 62.063(10)°, V = 494.2(6) ?3, Mr = 198.21, Dc = 1.332 g/cm3, F(000) = 208, μ = 0.089 mm-1, S = 1.023, (?/σ)max = 0.000, the final R = 0.0408 and wR = 0.1110. The largest peak and deepest hole on the final difference Fourier map are 0.219 and –0.161 e/?3, respectively. The bond lengths and bond angles of the molecule are also given.

关键词： capillarin Artemisia Ordosica Kraschen single-crystal X-ray diffraction crystal structure

CT灌注成像在兔早期肝硬化诊断中的应用价值研究

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现代生物医学进展 2019年第4期19卷 626-630页

作者：李安源高兵红张金玲唐亮刘秀娟纪凤颖马志文李东哈尔滨医科大学附属第一医院CT室黑龙江哈尔滨150001 哈尔滨市道里区疾控中心黑龙江哈尔滨150010

目的:探讨CT灌注成像在兔早期肝硬化诊断中的应用价值。方法:将55只新西兰大白兔随机分为2组,其中实验组45只,对照组10只。实验组给予皮下注射葡萄籽油稀释的50%CCL4,1次/4天,前4次剂量为1.0 m L/kg,第5次剂量为1.35 m L/kg,共注射20次... 详细信息

目的:探讨CT灌注成像在兔早期肝硬化诊断中的应用价值。方法:将55只新西兰大白兔随机分为2组,其中实验组45只,对照组10只。实验组给予皮下注射葡萄籽油稀释的50%CCL4,1次/4天,前4次剂量为1.0 m L/kg,第5次剂量为1.35 m L/kg,共注射20次。对照组采用同样方法只注射相同剂量的生理盐水。每注射4次后分别对实验组兔7只和正常对照组兔2只做螺旋CT灌注扫描,分析灌注参数,同时做相应的病理学观察,将二者进行比较及统计学分析。结果:注药4次末,兔血清ALT及AST明显高于注药前,注药8次末,兔血清ALT及AST最高,之后兔血清ALT及AST轻度减低,注药前后兔血清ALT及AST的变化有统计学意义(P0.1),注药12次末后二者之间差异有统计学意义(P<0.05);而HPP、HBF及HBV呈下降趋势,MTT逐渐延长,与对照组的差异均有统计学意义(P<0.05)。随兔血清ALT及AST的升高,HAP逐渐升高,MTT逐渐延长,而HPP、HBF及HBV逐渐减低。实验组肝小叶正常结构破坏,肝实质被纤维组织分割成大小不一、圆形或近圆形结节(假小叶),间隔较窄,炎症轻,结节边界尚整齐;汇管区内门脉小支扩张,壁增厚。对照组肝小叶结构规整,肝板排列有序,汇管区无扩大,其内个别炎细胞浸润,肝小叶内偶见点灶状坏死。结论:全肝CT灌注功能成像可为早期肝硬化的诊断提供影像学依据,将灌注征象与病理学变化结合有利于肝硬化的早期诊断和治疗。

关键词：兔肝硬化灌注 X线计算机体层摄影术

民族杂居区大学生学业延迟满足现状及其与学习动机的关系

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昭通学院学报 2020年第2期42卷 103-105页

作者：刘娟刘秀艳昭通学院教育科学学院云南昭通657000

采用问卷法对民族杂居区某高校的在校大学生进行了调查.结果发现民族杂居区大学生学业延迟满足处于中等偏上水平,不存在性别差异和民族差异,大二学生的学业延迟满足成绩显著高于大一和大三学生,其他两两年级间不存在显著差异.大学生内... 详细信息

采用问卷法对民族杂居区某高校的在校大学生进行了调查.结果发现民族杂居区大学生学业延迟满足处于中等偏上水平,不存在性别差异和民族差异,大二学生的学业延迟满足成绩显著高于大一和大三学生,其他两两年级间不存在显著差异.大学生内部学习动机和外部学习动机均与学业延迟满足呈正相关,但内部学习动机与学业延迟满足的相关性高于外部学习动机与学业延迟满足的相关性.

关键词：学业延迟满足延迟满足研究现状展望