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准分子激光术后超微结构变化与生物组织反应 被引量:2
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作者 王雁 赵堪兴 +3 位作者 Taylor HR 毛重生 白景文 杨海贤 《眼科研究》 CSCD 北大核心 2001年第4期293-296,共4页
目的 以超微结构为基础,了解准分子激光表面切削术后角膜生物组织反应特点。方法 透射电镜对38只兔眼4,8,12周角膜组织进行观察和分析,并设对照。结果角膜基质细胞线粒体和粗面内质网损害;出现功能不良性角膜实质细胞;在... 目的 以超微结构为基础,了解准分子激光表面切削术后角膜生物组织反应特点。方法 透射电镜对38只兔眼4,8,12周角膜组织进行观察和分析,并设对照。结果角膜基质细胞线粒体和粗面内质网损害;出现功能不良性角膜实质细胞;在各种细胞中有成堆的髓鳞体积聚,提示大量自由基的产生;免疫细胞反应和淋巴细胞的凋亡;气化性碎屑产生;角膜胶原纤维区域性溶解等。结论  准分子激光可使角膜组织产生特异性的生物组织反应,可能是临床合并症的组织病理学基础。 展开更多
关键词 准分子激光 超微结构 激光 生物组织反应 角膜组织 动物实验
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Spreadsheet quality assurance:a literature review
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作者 Pak-Lok POON Man Fai LAU +1 位作者 Yuen Tak YU Sau-Fun TANG 《Frontiers of Computer Science》 SCIE EI CSCD 2024年第2期61-82,共22页
Spreadsheets are very common for information processing to support decision making by both professional developers and non-technical end users.Moreover,business intelligence and artificial intelligence are increasingl... Spreadsheets are very common for information processing to support decision making by both professional developers and non-technical end users.Moreover,business intelligence and artificial intelligence are increasingly popular in the industry nowadays,where spreadsheets have been used as,or integrated into,intelligent or expert systems in various application domains.However,it has been repeatedly reported that faults often exist in operational spreadsheets,which could severely compromise the quality of conclusions and decisions based on the spreadsheets.With a view to systematically examining this problem via survey of existing work,we have conducted a comprehensive literature review on the quality issues and related techniques of spreadsheets over a 35.5-year period(from January 1987 to June 2022)for target journals and a 10.5-year period(from January 2012 to June 2022)for target conferences.Among other findings,two major ones are:(a)Spreadsheet quality is best addressed throughout the whole spreadsheet life cycle,rather than just focusing on a few specific stages of the life cycle.(b)Relatively more studies focus on spreadsheet testing and debugging(related to fault detection and removal)when compared with spreadsheet specification,modeling,and design(related to development).As prevention is better than cure,more research should be performed on the early stages of the spreadsheet life cycle.Enlightened by our comprehensive review,we have identified the major research gaps as well as highlighted key research directions for future work in the area. 展开更多
关键词 decision support system end-user computing end-user programming EXCEL SPREADSHEET
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