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Discrimination of Transgenic Rice Based on Near Infrared Reflectance Spectroscopy and Partial Least Squares Regression Discriminant Analysis 被引量:7
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作者 ZHANG Long WANG Shan-shan +2 位作者 DING Yan-fei PAN Jia-rong ZHU Cheng 《Rice science》 SCIE CSCD 2015年第5期245-249,共5页
Near infrared reflectance spectroscopy (NIRS), a non-destructive measurement technique, was combined with partial least squares regression discrimiant analysis (PLS-DA) to discriminate the transgenic (TCTP and mi... Near infrared reflectance spectroscopy (NIRS), a non-destructive measurement technique, was combined with partial least squares regression discrimiant analysis (PLS-DA) to discriminate the transgenic (TCTP and mi166) and wild type (Zhonghua 11) rice. Furthermore, rice lines transformed with protein gene (OsTCTP) and regulation gene (Osmi166) were also discriminated by the NIRS method. The performances of PLS-DA in spectral ranges of 4 000-8 000 cm-1 and 4 000-10 000 cm-1 were compared to obtain the optimal spectral range. As a result, the transgenic and wild type rice were distinguished from each other in the range of 4 000-10 000 cm-1, and the correct classification rate was 100.0% in the validation test. The transgenic rice TCTP and mi166 were also distinguished from each other in the range of 4 000-10 000 cm-1, and the correct classification rate was also 100.0%. In conclusion, NIRS combined with PLS-DA can be used for the discrimination of transgenic rice. 展开更多
关键词 near infrared reflectance spectroscopy genetically-modified food regulation gene protein gene partial least squares regression discrimiant analysis
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运动医学试题库使用结果分析
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作者 杨晨利 杨洪勋 《河南师范大学学报(自然科学版)》 CAS CSCD 1992年第4期119-122,共4页
本文对使用《运动医学》试题库进行考试的体育系88级的成绩处理分析,从试题的难度、区分度、信度等各方面进行了初步探讨,为进一步完善《运动医学》试题库提供科学依据,为深入教学改革及考试方法科学化奠定基础。
关键词 试题库 难度 信度 区分度 运动医学
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普通高校体育教育专业人体生理学标准化试题库预测结果分析
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作者 党晓云 《河南师范大学学报(自然科学版)》 CAS CSCD 1997年第1期84-87,共4页
本文对两套人体生理学标准化试题库预测结果进行处理、分析,主要从试题的难度、区分度、信度、效度等各方面进行初步探讨。
关键词 试题库 区分度 信度 人体生理学 教学
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Make Changes in the Society——My proposal at China's Two Sessions
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作者 Margaux Schreurs 《China's Foreign Trade》 2014年第4期71-71,共1页
With the two sessions now over in Beijing,and life returning back to normal,it will take a while to see what changes will be implemented in China.If I were a delegate,I would make the following suggestions to those ma... With the two sessions now over in Beijing,and life returning back to normal,it will take a while to see what changes will be implemented in China.If I were a delegate,I would make the following suggestions to those mak-ing and implementing policy in China.Firstly,I would emphasise that GDP growth rates are not the 展开更多
关键词 delegate ULTIMATE PROPOSAL SCHOOLS PRICES discrimi
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