The administrative authority of Taiwan,China has been executing the educational reform programs for more than two decades.However,the so-called between-class ability grouping which is prohibited by The administrative ...The administrative authority of Taiwan,China has been executing the educational reform programs for more than two decades.However,the so-called between-class ability grouping which is prohibited by The administrative authority of Taiwan,China is still found in many places;and Taiwan region of China's cram schools are even more popular and diversified than before.The authors argue that,in addition to individual's socio-economic background,regional characteristics and school attributes also play important roles.Bringing these two factors back in,the causal relationships among ability grouping,cram schooling,and student academic achievement can be analyzed more accurately.Using data from Taiwan region of China Education Panel Survey,the authors'empirical results show that,first of all,in more urbanized area,between-class ability grouping is less popular but cram school participation is wider spread these years.Secondly,the effects of family backgrounds on students'cram school participation are not as critical as they were before.Thirdly,between-class ability grouping and students'performance are positively associated but the internal mechanism still needs further investigation.展开更多
This study showed that difference in students’perceptions toward ability grouping existed.Even though teachers and scholars expected that ability grouping could help students to become more positive motivated and sat...This study showed that difference in students’perceptions toward ability grouping existed.Even though teachers and scholars expected that ability grouping could help students to become more positive motivated and satisfied with studying in the class thus narrowing the gap between advanced and beginning level students,there were still problems showing that ability grouping should be modified.展开更多
Agricultural technological innovation strategic alliance, as an important form of strategic alliance, has steadily strengthened the collaborative management among organizations and raised competitive power with the ba...Agricultural technological innovation strategic alliance, as an important form of strategic alliance, has steadily strengthened the collaborative management among organizations and raised competitive power with the backing of improved group innovation ability. This article studies innovation ability from individual innovation ability to the group innovation ability. Firstly, basic connotation of group innovation ability is to be concluded through the comparison of individual and group innovation ability. Secondly, evaluation index system is to be established based on the influencing factors of the group innovation ability of agricultural technological innovation strategic alliance and evaluation is based on three dimensions, namely organization technological innovation ability, alliance collaborative innovation ability as well as innovation environment. Furthermore, basic methods for promoting the group innovation ability of alliance are to be proposed.展开更多
There has been a long time of debate between the two teaching approaches of homogenous grouping and heterogeneous grouping.Here in the essay,we explored both of the two teaching approaches in Yunnan Province of China ...There has been a long time of debate between the two teaching approaches of homogenous grouping and heterogeneous grouping.Here in the essay,we explored both of the two teaching approaches in Yunnan Province of China whereas the puzzle lies in the question of which method can achieve a relatively-better result in English classes of Yunnan.Some possible solutions are promoted based on the data and analysis collected from a survey.展开更多
Erratum to:SCIENCE CHINA Life Sciences,Volume 67,Issue 12:2713–2729(2024),https://doi.org/10.1007/s11427-023-2625-7.The original version of the manuscript contained errors in Figure 3,Figure 9 and in the Supporting I...Erratum to:SCIENCE CHINA Life Sciences,Volume 67,Issue 12:2713–2729(2024),https://doi.org/10.1007/s11427-023-2625-7.The original version of the manuscript contained errors in Figure 3,Figure 9 and in the Supporting Information file.In Figure 3B-D,the Control group results in the flow cytometry analysis were misused.We provide the correct control group results for Figure 3B-D as follows.展开更多
To compare the heterosis levels among various groups of parental lines used extensively in China, identify foundational heterotic groups in parental pools and understand the relationship between genetic distance and h...To compare the heterosis levels among various groups of parental lines used extensively in China, identify foundational heterotic groups in parental pools and understand the relationship between genetic distance and heterosis performance, 16 parental lines with extensive genetic variation were selected from various sub-groups, and 39 hybrid combinations were generated and evaluated in Fujian and Hainan Provinces of China. The main results were as follows： （1） The 16 parental lines can be grouped into 7 sub-groups consisting of 1 maintainer sub-group and 6 restorer sub-groups; （2） Mean grain yield of the restorer lines was higher than that of the maintainer lines, and mean yield of parental lines was higher than that of the hybrid combinations; （3） The two best heterotic patterns were II-32A × G5 and II-32A × G6, moreover, the order of restorer sub-groups according to grain yield, from the highest to lowest, was G7, G6, G5, G4, G3 and G2; High specific combining ability values were observed for combinations of II-32A × G5, II-32A × G6 and Tianfeng A × G7; （4） Hybrid combinations derived from II-32A crossed with 13 restorer lines had higher yield trait values （mid-parent heterosis, better-parent heterosis, standard heterosis over check and specific combining ability） than any other combinations; （5） Genetic distance was positively correlated with panicle number, grain length and length-to-width ratio （P 〈 0.05） and negatively correlated with grain width, grain yield, seed-setting rate, as well as mid-parent heterosis, standard heterosis over check, and specific combining ability for grain yield （P 〈 0.01）. These heterotic groups and patterns and their argonomic traits will provide useful information for future hybrid rice breeding programs.展开更多
Heterotic group theory （HGT） has played a major role in supporting hybrid maize breeding for about 100 years. The basic content and studies of HGT, and its application in rice and maize were summarized in this paper...Heterotic group theory （HGT） has played a major role in supporting hybrid maize breeding for about 100 years. The basic content and studies of HGT, and its application in rice and maize were summarized in this paper. Additionally, difficulties and challenges for hybrid rice breeding in China were analyzed, and necessity and urgency in hybrid rice breeding by using HGT were proposed.展开更多
The aim of English teaching is not only to make the students learn new words and grammar, answer multiple-choice questions to get good scores, but also to enhance the students'abilities of the integrated applicati...The aim of English teaching is not only to make the students learn new words and grammar, answer multiple-choice questions to get good scores, but also to enhance the students'abilities of the integrated application of English, speaking and listening in particular. The ultimate goal of learning English is to use English to communicate with others in the future jobs and real life. However, the non-English majors have great trouble speaking English in class and in real life. Such ways as Socratic dialogues, cause analysis and questionnaire are used to investigate the reasons. In order to improve speaking ability, group discussion is used in class. In consequence, the students have more interest, motivation, courage and confidence in speaking English. Meanwhile, they have also established the concept of using what they learned in class, in practical work and real life.展开更多
文摘The administrative authority of Taiwan,China has been executing the educational reform programs for more than two decades.However,the so-called between-class ability grouping which is prohibited by The administrative authority of Taiwan,China is still found in many places;and Taiwan region of China's cram schools are even more popular and diversified than before.The authors argue that,in addition to individual's socio-economic background,regional characteristics and school attributes also play important roles.Bringing these two factors back in,the causal relationships among ability grouping,cram schooling,and student academic achievement can be analyzed more accurately.Using data from Taiwan region of China Education Panel Survey,the authors'empirical results show that,first of all,in more urbanized area,between-class ability grouping is less popular but cram school participation is wider spread these years.Secondly,the effects of family backgrounds on students'cram school participation are not as critical as they were before.Thirdly,between-class ability grouping and students'performance are positively associated but the internal mechanism still needs further investigation.
文摘This study showed that difference in students’perceptions toward ability grouping existed.Even though teachers and scholars expected that ability grouping could help students to become more positive motivated and satisfied with studying in the class thus narrowing the gap between advanced and beginning level students,there were still problems showing that ability grouping should be modified.
文摘Agricultural technological innovation strategic alliance, as an important form of strategic alliance, has steadily strengthened the collaborative management among organizations and raised competitive power with the backing of improved group innovation ability. This article studies innovation ability from individual innovation ability to the group innovation ability. Firstly, basic connotation of group innovation ability is to be concluded through the comparison of individual and group innovation ability. Secondly, evaluation index system is to be established based on the influencing factors of the group innovation ability of agricultural technological innovation strategic alliance and evaluation is based on three dimensions, namely organization technological innovation ability, alliance collaborative innovation ability as well as innovation environment. Furthermore, basic methods for promoting the group innovation ability of alliance are to be proposed.
文摘There has been a long time of debate between the two teaching approaches of homogenous grouping and heterogeneous grouping.Here in the essay,we explored both of the two teaching approaches in Yunnan Province of China whereas the puzzle lies in the question of which method can achieve a relatively-better result in English classes of Yunnan.Some possible solutions are promoted based on the data and analysis collected from a survey.
文摘Erratum to:SCIENCE CHINA Life Sciences,Volume 67,Issue 12:2713–2729(2024),https://doi.org/10.1007/s11427-023-2625-7.The original version of the manuscript contained errors in Figure 3,Figure 9 and in the Supporting Information file.In Figure 3B-D,the Control group results in the flow cytometry analysis were misused.We provide the correct control group results for Figure 3B-D as follows.
基金supported by grants from the Hi-Tech Research and Development(863)Program of China(Grant Nos.2014AA10A603 and 2014AA10A604)the Special Foundation of Non-Profit Research Institutes of Fujian Province,China(Grant No.2015R1021-8)
文摘To compare the heterosis levels among various groups of parental lines used extensively in China, identify foundational heterotic groups in parental pools and understand the relationship between genetic distance and heterosis performance, 16 parental lines with extensive genetic variation were selected from various sub-groups, and 39 hybrid combinations were generated and evaluated in Fujian and Hainan Provinces of China. The main results were as follows： （1） The 16 parental lines can be grouped into 7 sub-groups consisting of 1 maintainer sub-group and 6 restorer sub-groups; （2） Mean grain yield of the restorer lines was higher than that of the maintainer lines, and mean yield of parental lines was higher than that of the hybrid combinations; （3） The two best heterotic patterns were II-32A × G5 and II-32A × G6, moreover, the order of restorer sub-groups according to grain yield, from the highest to lowest, was G7, G6, G5, G4, G3 and G2; High specific combining ability values were observed for combinations of II-32A × G5, II-32A × G6 and Tianfeng A × G7; （4） Hybrid combinations derived from II-32A crossed with 13 restorer lines had higher yield trait values （mid-parent heterosis, better-parent heterosis, standard heterosis over check and specific combining ability） than any other combinations; （5） Genetic distance was positively correlated with panicle number, grain length and length-to-width ratio （P 〈 0.05） and negatively correlated with grain width, grain yield, seed-setting rate, as well as mid-parent heterosis, standard heterosis over check, and specific combining ability for grain yield （P 〈 0.01）. These heterotic groups and patterns and their argonomic traits will provide useful information for future hybrid rice breeding programs.
基金supported by the grant from the program of Introducing Talents of Discipline to University of China(Grant No.B08025)
文摘Heterotic group theory （HGT） has played a major role in supporting hybrid maize breeding for about 100 years. The basic content and studies of HGT, and its application in rice and maize were summarized in this paper. Additionally, difficulties and challenges for hybrid rice breeding in China were analyzed, and necessity and urgency in hybrid rice breeding by using HGT were proposed.
文摘The aim of English teaching is not only to make the students learn new words and grammar, answer multiple-choice questions to get good scores, but also to enhance the students'abilities of the integrated application of English, speaking and listening in particular. The ultimate goal of learning English is to use English to communicate with others in the future jobs and real life. However, the non-English majors have great trouble speaking English in class and in real life. Such ways as Socratic dialogues, cause analysis and questionnaire are used to investigate the reasons. In order to improve speaking ability, group discussion is used in class. In consequence, the students have more interest, motivation, courage and confidence in speaking English. Meanwhile, they have also established the concept of using what they learned in class, in practical work and real life.
