English writing, as a basic language skill for second language learners, is being paid close attention to. How to achieve better results in English teaching and how to develop students＇ writing competence remain an a...English writing, as a basic language skill for second language learners, is being paid close attention to. How to achieve better results in English teaching and how to develop students＇ writing competence remain an arduous task for English teachers. This paper introduces three writing approaches that are currently popular in English writing teaching field, i.e., the product approach, the process approach and the genre approach, and offers some discussion on the three approaches each approach shows its strengths and weaknesses, but meanwhile they are largely complementary. Then this paper attempts to propose an integrated approach which is not only a synthesis of the above three approaches, but also draws on some experiences of traditional Chinese language teaching methods.展开更多
To the issue on the superiority and inferiority of the ＂product approach＂ and the ＂process approach＂ writing teaching, an empirical study research of I00 non-English major students has been accomplished to testify...To the issue on the superiority and inferiority of the ＂product approach＂ and the ＂process approach＂ writing teaching, an empirical study research of I00 non-English major students has been accomplished to testify the relationship between these different approaches and the different writing levels. The results are the ＂product approach＂ is more helpful to the learners with lower writing level; whereas, the ＂process approach＂ is more effective to ones with higher level. Furthermore, the teaching approach itself cannot affirm the superiority and inferiority, and it would not be at work unless is applied for corresponding learners.展开更多
Glucosinolates(GLSs) are sulfur-rich, amino acid-derived defense compounds characteristic of the Brassicales order. In the past, GLSs were mostly known as anti-nutritional factors in fodder, biopesticides in agricultu...Glucosinolates(GLSs) are sulfur-rich, amino acid-derived defense compounds characteristic of the Brassicales order. In the past, GLSs were mostly known as anti-nutritional factors in fodder, biopesticides in agriculture, and flavors in condiments such as mustard. However, in recent times, GLSs have received increased attention as promoters of human health.This has spurred intensive research towards generating rich sources of health-promoting GLSs. We provide a comprehensive overview of the biotechnologica approaches applied to reach this goal. This includes optimization of GLS production and composition in native, GLS-producing plants, including hairy root and cell cultures thereof, as well as synthetic biology approaches in heterologous hosts, such as tobacco and the microbial organisms Escherichia coli and Saccharomyces cerevisiae. The progress using these different approaches is discussed.展开更多
Agriculture-to-urban water transfer is currently an important measure to meet the increasing water demand resulting from rapid industrialization and urbanization in China.Measuring benefits of agriculture-to-urban wat...Agriculture-to-urban water transfer is currently an important measure to meet the increasing water demand resulting from rapid industrialization and urbanization in China.Measuring benefits of agriculture-to-urban water transfer is critical to assess water transfer proposals,and it can also provide reliable basis for redistributing the benefits of agriculture-to-urban water transfer.This paper has developed a comprehensive framework in which production function approach is applied to quantify the value of water use in agricultural and industrial sectors,and contingent valuation method is employed to investigate the value of water use in municipal consumption and ecological environment.A case study from Zhuji City in China verified the feasibility and validity of the method proposed in the paper.Results indicate that the agriculture-to-urban water transfer increases the water value created by improving allocation efficiency of water use in different sectors.The benefits of agriculture-to-urban water transfer mainly originate from the fact that the economic value in industrial water use is higher than in the other sectors’water use.Meanwhile,the urban residents have a stronger desire to improve the water eco-environment which leads to higher water value in urban area.展开更多
College English writing has long been the weakest aspect of English programs for English majors in China. This situation is especially true at North University of China. This study explores the use of collaborative te...College English writing has long been the weakest aspect of English programs for English majors in China. This situation is especially true at North University of China. This study explores the use of collaborative teaching between native and non-native English writing instructors. It seeks to identify ways to make full use of native teachers＇ and Chinese teachers＇ strengths in teaching English writing, to implement team- teaching to benefit both teachers and students, and to help Chinese teachers to improve their English proficiency and enable native English soeakin~ teachers to better understand Chinese students＇ specific difficulties in English writing.展开更多
Stochastic frontier production function approach is adopted, 93 farmer samples have been collected, pure efficiency, technical efficiency, technical change and scale efficiency and the institutional contribution have ...Stochastic frontier production function approach is adopted, 93 farmer samples have been collected, pure efficiency, technical efficiency, technical change and scale efficiency and the institutional contribution have been calculated. The results indicated that increasing productivity is the sole measurement to reduce poverty, institution and technical change are the two key factors. Therefore, stable institution, improving technical changes are required. At present, it is urgent to make technical progre...展开更多
文摘English writing, as a basic language skill for second language learners, is being paid close attention to. How to achieve better results in English teaching and how to develop students＇ writing competence remain an arduous task for English teachers. This paper introduces three writing approaches that are currently popular in English writing teaching field, i.e., the product approach, the process approach and the genre approach, and offers some discussion on the three approaches each approach shows its strengths and weaknesses, but meanwhile they are largely complementary. Then this paper attempts to propose an integrated approach which is not only a synthesis of the above three approaches, but also draws on some experiences of traditional Chinese language teaching methods.
文摘To the issue on the superiority and inferiority of the ＂product approach＂ and the ＂process approach＂ writing teaching, an empirical study research of I00 non-English major students has been accomplished to testify the relationship between these different approaches and the different writing levels. The results are the ＂product approach＂ is more helpful to the learners with lower writing level; whereas, the ＂process approach＂ is more effective to ones with higher level. Furthermore, the teaching approach itself cannot affirm the superiority and inferiority, and it would not be at work unless is applied for corresponding learners.
基金the DNRF99 grant from the Danish National Research Foundationthe NNF14OC0011253 from the Novo Nordic Foundationa PhD stipend from the Department of Plant and Environmental Sciences, University of Copenhagen
文摘Glucosinolates(GLSs) are sulfur-rich, amino acid-derived defense compounds characteristic of the Brassicales order. In the past, GLSs were mostly known as anti-nutritional factors in fodder, biopesticides in agriculture, and flavors in condiments such as mustard. However, in recent times, GLSs have received increased attention as promoters of human health.This has spurred intensive research towards generating rich sources of health-promoting GLSs. We provide a comprehensive overview of the biotechnologica approaches applied to reach this goal. This includes optimization of GLS production and composition in native, GLS-producing plants, including hairy root and cell cultures thereof, as well as synthetic biology approaches in heterologous hosts, such as tobacco and the microbial organisms Escherichia coli and Saccharomyces cerevisiae. The progress using these different approaches is discussed.
基金funded by Natural Science Foundation of Zhejiang Province,China:[Grant number.LY15G030010]Chinese Ministry of Education:[Grant number.15YJCZH170].
文摘Agriculture-to-urban water transfer is currently an important measure to meet the increasing water demand resulting from rapid industrialization and urbanization in China.Measuring benefits of agriculture-to-urban water transfer is critical to assess water transfer proposals,and it can also provide reliable basis for redistributing the benefits of agriculture-to-urban water transfer.This paper has developed a comprehensive framework in which production function approach is applied to quantify the value of water use in agricultural and industrial sectors,and contingent valuation method is employed to investigate the value of water use in municipal consumption and ecological environment.A case study from Zhuji City in China verified the feasibility and validity of the method proposed in the paper.Results indicate that the agriculture-to-urban water transfer increases the water value created by improving allocation efficiency of water use in different sectors.The benefits of agriculture-to-urban water transfer mainly originate from the fact that the economic value in industrial water use is higher than in the other sectors’water use.Meanwhile,the urban residents have a stronger desire to improve the water eco-environment which leads to higher water value in urban area.
文摘College English writing has long been the weakest aspect of English programs for English majors in China. This situation is especially true at North University of China. This study explores the use of collaborative teaching between native and non-native English writing instructors. It seeks to identify ways to make full use of native teachers＇ and Chinese teachers＇ strengths in teaching English writing, to implement team- teaching to benefit both teachers and students, and to help Chinese teachers to improve their English proficiency and enable native English soeakin~ teachers to better understand Chinese students＇ specific difficulties in English writing.
文摘Stochastic frontier production function approach is adopted, 93 farmer samples have been collected, pure efficiency, technical efficiency, technical change and scale efficiency and the institutional contribution have been calculated. The results indicated that increasing productivity is the sole measurement to reduce poverty, institution and technical change are the two key factors. Therefore, stable institution, improving technical changes are required. At present, it is urgent to make technical progre...
