Purpose:In studies of the research process,the association between how researchers conceptualize research and their strategic research agendas has been largely overlooked.This study aims to address this gap.Design/met...Purpose:In studies of the research process,the association between how researchers conceptualize research and their strategic research agendas has been largely overlooked.This study aims to address this gap.Design/methodology/approach:This study analyzes this relationship using a dataset of more than 8,500 researchers across all scientific fields and the globe.It studies the associations between the dimensions of two inventories:the Conceptions of Research Inventory(CoRI)and the Multi-Dimensional Research Agenda Inventory—Revised(MDRAI-R).Findings:The findings show a relatively strong association between researchers’conceptions of research and their research agendas.While all conceptions of research are positively related to scientific ambition,the findings are mixed regarding how the dimensions of the two inventories relate to one another,which is significant for those seeking to understand the knowledge production process better.Research limitations:The study relies on self-reported data,which always carries a risk of response bias.Practical implications:The findings provide a greater understanding of the inner workings of knowledge processes and indicate that the two inventories,whether used individually or in combination,may provide complementary analytical perspectives to research performance indicators.They may thus offer important insights for managers of research environments regarding how to assess the research culture,beliefs,and conceptualizations of individual researchers and research teams when designing strategies to promote specific institutional research focuses and strategies.Originality/value:To the best of the authors’knowledge,this is the first study to associate research agendas and conceptions of research.It is based on a large sample of researchers working worldwide and in all fields of knowledge,which ensures that the findings have a reasonable degree of generalizability to the global population of researchers.展开更多
This paper proposes a holistic framework for the development of models for the assessment of research activities and their impacts. It distinguishes three dimensions, including in an original way, data as a main dimen...This paper proposes a holistic framework for the development of models for the assessment of research activities and their impacts. It distinguishes three dimensions, including in an original way, data as a main dimension, together with theory and methodology. Each dimension of the framework is further characterized by three main building blocks: education, research, and innovation (theory); efficiency, effectiveness, and impact (methodology); and availability, interoperability, and "unit-free" property (data). The different dimensions and their nine constituent building blocks are attributes of an overarching concept, denoted as "quality." Three additional quality attributes are identified as implementation factors (tailorability, transparency, and openness) and three "enabling" conditions (convergence, mixed methods, and knowledge infrastructures) complete the fi-amework. A framework is required to develop models of metrics. Models of metrics are necessary to assess the meaning, validity, and robustness of metrics. The proposed framework can be a useful reference for the development of the ethics of research evaluation. It can act as a common denominator for different analytical levels and relevant aspects and is able to embrace many different and heterogeneous streams of literature. Directions for future research are provided.展开更多
1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments te...1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments tend to be long lasting,intensive,and expensive.~4Additionally,individuals with ED seeking treatment use healthcare services more frequently than non-ED individu-展开更多
The products of ecological textile have represented nowadays the new trend ofglobal consumption and production of textile while become an important means for some countries toutilize 'green barrier' as a limit...The products of ecological textile have represented nowadays the new trend ofglobal consumption and production of textile while become an important means for some countries toutilize 'green barrier' as a limitation of import of textile products. Following the entrance ofChina into the WTO, the position of 'green barrier' becomes significantly important in the trade oftextile products. As China is a big country of textile production, speeding up the research onstandards for products of ecological textile, countering the latest situation appearing ininternational trade of textile, to take as quickly as possible responsive measures is a very urgentproblem in port, to enhancing the ability of international market competition and to promoting thestable development of foreign oriented economy.展开更多
Research into anticancer substances madefrom Chinese herbal drugs and their clinicalapplication is gaining international attention bythe medical profession of the more than 20analogues of camptothecine isolated from C...Research into anticancer substances madefrom Chinese herbal drugs and their clinicalapplication is gaining international attention bythe medical profession of the more than 20analogues of camptothecine isolated from Camp-totheca tree in China, most exhibited anticanceractivity. Among them, 10-hydroxycamptothe-cine has a wide anticancer spectrum and is lesstoxic. In suspension, it exhibits some therapeu-tic effects on primary hepatic cancer, gastriccarcinoma, cancer of the urinary bladder andleukemia.展开更多
The present research developed a bioeconomic model for control of Californian thistle (Cirsium arvense L. Scop.) in intensive, lowland sheep pastures in New Zealand. Production costs included two control methods: h...The present research developed a bioeconomic model for control of Californian thistle (Cirsium arvense L. Scop.) in intensive, lowland sheep pastures in New Zealand. Production costs included two control methods: herbicides and defoliation, with defoliation encompassing both physical means and biocontrol measures. The model was used to examine the economic value of a research programme into biological control of the weed, given several different future scenarios. These scenarios were high herbicide prices, a price premium for lamb raised without chemical herbicides, and development of herbicide resistance. The model results were used to estimate national impacts. If the only change in the agricultural sector was the cost of the biocontrol to the nation's farmers, the research programme to find an effective biocontrol agent had little economic impact. If other factors changed, such as the price of petroleum or levels of herbicide resistance in the weed. the model's results suggested that intensive sheep farming could grow or shrink by as much as NZ$219 million dollars over five years. In the latter case, having an alternative control method reduced potential losses and increased potential gains, resulting in a net benefit of between NZ$81 million and NZ$153 million. This work extended prior research in several ways. First. Californian thistle reproduces via root buds, which affected the modelling of weed behaviour. Secondly, the model allowed optimistation over continuous levels of weed control for two different methods. Thirdly, the model accounted for both weed control and damage to nitrogen-fixing clover from herbicide use. Finally, the research investigated optimal weed control in several different alternative future states.展开更多
(Editor’s note) The adjustment of research orientation is an important aspect of the structural adjustment at research institutes under the CAS. In order to report the situation, Fan Chunliang, a reporter from this j...(Editor’s note) The adjustment of research orientation is an important aspect of the structural adjustment at research institutes under the CAS. In order to report the situation, Fan Chunliang, a reporter from this journal, interviewed some institute directors, asking them to air their views and ideas on the directional adjustment of their respective institutes. The following is his report about the interviews for the reference of readers.展开更多
With the progress of the times and the leap of science and technology,the application of brick materials and the research on the brick skin in modern architectural design have shown a dual-track development trend of r...With the progress of the times and the leap of science and technology,the application of brick materials and the research on the brick skin in modern architectural design have shown a dual-track development trend of returning to tradition and innovation.Based on the core collection database resources of Web of Science and the CiteSpace visual analysis tool,this paper constructed and analyzed the spatio-temporal map of keyword co-occurrence network,cluster structure,mutation phenomenon,time course and regional distribution map of building brick skin research.The study revealed that in recent years,the research on brick materials has spanned the study of single material properties and extensively involved in the broad world of construction,especially in the integration of green energy-saving technology,the innovation of fine construction technology of brick skin,and the frontier exploration of digital technology in brick masonry,which has shown particularly significant research vitality and development potential.展开更多
The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper exp...The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper expounds several core concepts related to research.In the end,the article summarizes the vast majority of navigation idioms from the perspective of language and cultural relations with the relevant published literature,as well as cnki.net and English journals,and rarely studies navigation idi⁃oms systematically from the perspective of semiotics.Therefore,it is necessary to carry out this study and find out the cultural simi⁃larities and differences from another perspective.展开更多
The research reviewed biological characters and nutritional value of Chenopodium quinoa and concluded status quo of domestic cultivation and problems at promotion, as wel as application prospect in order to provide re...The research reviewed biological characters and nutritional value of Chenopodium quinoa and concluded status quo of domestic cultivation and problems at promotion, as wel as application prospect in order to provide references for re-search and development of Chenopodium quinoa.展开更多
In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area...In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area and vacuum cold fresh chain to the cold chain breakage for horticultural products,and also to the investigation of principle and theory but the investigation results would have some evident difference. This paper will simply summarize the basic conception,principle,two withdrawing air type hypobaric storage technologies,and introduce many examples as mentioned above extending in China. This paper thinks that the master mechanism of preservation of LP for fresh horticultural products effectively inhibits the activity change of manifold enzymes,which are PAL,POD,PPO,CAT,CAD,SOD et al.,affecting the maturation and caducity of fresh horticultural products during LP storage for a short period,as a result,to reduce both risk of physiology obstacle and disease and to prolong their postharvest life; for the foreseeable future Burg's hypobaric storage technology and hypobaric short period treatment technology will play an important role in the preservation on fresh agricultural products and food preservation in storage and transportation,the preliminary processing of growing area,fresh logistics,establishing the operating platform of perishable food and high business value,fresh e-business,and fresh delivery for scattered families,establishing the operating platform of fresh-cut vegetables including edible fungi and so on in China or in the world.展开更多
This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums u...This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums up the process and development of quantitative investigation of active tectonics since the 1980s.The focus is on the main efforts and progress made in China on certain aspects of research,such as basic surveys and applied investigation of active tectonics,the study of theories related to regional active tectonics and their kinematics and geodynamics,surveys on coupling relations between deep and shallow structures,active fault surveys and prospecting and seismic hazard assessment in urban areas,as well as the efforts made using Quaternary geochronology.Furthermore,the paper looks back on Chinese quantitative investigation of active tectonics in China and sums up cognitions derived from studies on the determination of several basic and measurable parameters of active tectonics.These parameters include the length of fault and fault segmentation,coseismic slip and cumulative slip,fault slip rate,the sequence of paleoearthquake events and the time elapsed since the most recent event.At the same time,efforts and progress made in China on assessing the long-term seismic potential for active faults and evaluating the risk from potential active fault movement have been reviewed by summarizing research on developing theories,models,methods and the application of time-dependent seismic potential to probabilistic assessment,magnitude estimation for potential earthquakes on active faults,and the forecast of potential risk caused by active fault movement.Finally,in consideration of the realities and problems in the research of active tectonics in China,the authors put forward several suggestions for issues worthy of more attention for further investigation in the future.展开更多
The research topic of this paper develops a case study approach that builds on the foundations of Yin's "linear model" and "the best practice" used in theoretical case studies at international research literature...The research topic of this paper develops a case study approach that builds on the foundations of Yin's "linear model" and "the best practice" used in theoretical case studies at international research literature. It discusses the case study method and its role and focusing on research questions like healthcare branding, research design, and methodic. Also presents the case study research theory for a research case study. The methods used in this paper are based on hypothesis of a generic hospital branding strategy for the Romanian Private Hospital and also may apply to the Romanian strategy of development of public healthcare entities and partnerships between public and private healthcare entities. An empirical test of the relationships among branding loyalty and awareness, customer satisfaction, trust and relationship commitment suggests that Romanian hospitals can be successful in creating an image and positive brand equity if they can manage their customer relationships well. This can be done through a coordinated strategy of management and marketing development of healthcare entities. The results highlight the dominance of case-study research in qualitative marketing healthcare and highlight the importance of customer relationships in the branding practice of healthcare marketing. It also shows that marketing managers can succeed in creating positive brand equity and image if they can manage relationships with their customers well.展开更多
All accounting and financial behaviors are rooted in specific institutional environments.These behaviors pertain to specific firms,and firms operate in different economic systems.Therefore,institutions such as the pol...All accounting and financial behaviors are rooted in specific institutional environments.These behaviors pertain to specific firms,and firms operate in different economic systems.Therefore,institutions such as the political,legal,economic,cultural,and religious institutions that shape an economic entity will surely展开更多
ECOLOGY Characteristics of Soil Temperature in Shortrotation Eucalyptus Plantation Pan Yongjun1,Wang Bing2, Chen Bufeng1, Chen Jin1, Shi Xin1, LiHanqiang3 (1. Research Institute of TropicalForestry, Chinese Academy of...ECOLOGY Characteristics of Soil Temperature in Shortrotation Eucalyptus Plantation Pan Yongjun1,Wang Bing2, Chen Bufeng1, Chen Jin1, Shi Xin1, LiHanqiang3 (1. Research Institute of TropicalForestry, Chinese Academy of Forestry(CAF),Guangzhou 510520, Guangdong, P.R.China; 2.展开更多
Over the years SLA research has developed rapidly and continued to do so. There has been an enormous amount of empirical research directed at describing the characteristics of L2 learner language and how the change as...Over the years SLA research has developed rapidly and continued to do so. There has been an enormous amount of empirical research directed at describing the characteristics of L2 learner language and how the change as acquisition takes place. There has also been growing interest in theory construction. This article mainly probes into five kinds of its developments.展开更多
基金supported by doctoral grant PD/BD/113999/2015 from the Fundacao para a Ciência e Tecnologia and by the European Social Fund and the Portuguese Ministry of Science and Educationfunded by the Research Grants Council (Hong Kong SAR, China)project entitled “Characterizing researchers’ research agenda-setting: an international perspective across fields of knowledge” (project number: 27608516)。
文摘Purpose:In studies of the research process,the association between how researchers conceptualize research and their strategic research agendas has been largely overlooked.This study aims to address this gap.Design/methodology/approach:This study analyzes this relationship using a dataset of more than 8,500 researchers across all scientific fields and the globe.It studies the associations between the dimensions of two inventories:the Conceptions of Research Inventory(CoRI)and the Multi-Dimensional Research Agenda Inventory—Revised(MDRAI-R).Findings:The findings show a relatively strong association between researchers’conceptions of research and their research agendas.While all conceptions of research are positively related to scientific ambition,the findings are mixed regarding how the dimensions of the two inventories relate to one another,which is significant for those seeking to understand the knowledge production process better.Research limitations:The study relies on self-reported data,which always carries a risk of response bias.Practical implications:The findings provide a greater understanding of the inner workings of knowledge processes and indicate that the two inventories,whether used individually or in combination,may provide complementary analytical perspectives to research performance indicators.They may thus offer important insights for managers of research environments regarding how to assess the research culture,beliefs,and conceptualizations of individual researchers and research teams when designing strategies to promote specific institutional research focuses and strategies.Originality/value:To the best of the authors’knowledge,this is the first study to associate research agendas and conceptions of research.It is based on a large sample of researchers working worldwide and in all fields of knowledge,which ensures that the findings have a reasonable degree of generalizability to the global population of researchers.
基金financial support of the Italian Ministry of Education and Research(through the PRIN Project N.2015RJARX7)Sapienza University of Rome(through the Sapienza Awards no.6H15XNFS)the Lazio Region(through the Project FILAS-RU-2014-1186)
文摘This paper proposes a holistic framework for the development of models for the assessment of research activities and their impacts. It distinguishes three dimensions, including in an original way, data as a main dimension, together with theory and methodology. Each dimension of the framework is further characterized by three main building blocks: education, research, and innovation (theory); efficiency, effectiveness, and impact (methodology); and availability, interoperability, and "unit-free" property (data). The different dimensions and their nine constituent building blocks are attributes of an overarching concept, denoted as "quality." Three additional quality attributes are identified as implementation factors (tailorability, transparency, and openness) and three "enabling" conditions (convergence, mixed methods, and knowledge infrastructures) complete the fi-amework. A framework is required to develop models of metrics. Models of metrics are necessary to assess the meaning, validity, and robustness of metrics. The proposed framework can be a useful reference for the development of the ethics of research evaluation. It can act as a common denominator for different analytical levels and relevant aspects and is able to embrace many different and heterogeneous streams of literature. Directions for future research are provided.
文摘1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments tend to be long lasting,intensive,and expensive.~4Additionally,individuals with ED seeking treatment use healthcare services more frequently than non-ED individu-
文摘The products of ecological textile have represented nowadays the new trend ofglobal consumption and production of textile while become an important means for some countries toutilize 'green barrier' as a limitation of import of textile products. Following the entrance ofChina into the WTO, the position of 'green barrier' becomes significantly important in the trade oftextile products. As China is a big country of textile production, speeding up the research onstandards for products of ecological textile, countering the latest situation appearing ininternational trade of textile, to take as quickly as possible responsive measures is a very urgentproblem in port, to enhancing the ability of international market competition and to promoting thestable development of foreign oriented economy.
文摘Research into anticancer substances madefrom Chinese herbal drugs and their clinicalapplication is gaining international attention bythe medical profession of the more than 20analogues of camptothecine isolated from Camp-totheca tree in China, most exhibited anticanceractivity. Among them, 10-hydroxycamptothe-cine has a wide anticancer spectrum and is lesstoxic. In suspension, it exhibits some therapeu-tic effects on primary hepatic cancer, gastriccarcinoma, cancer of the urinary bladder andleukemia.
文摘The present research developed a bioeconomic model for control of Californian thistle (Cirsium arvense L. Scop.) in intensive, lowland sheep pastures in New Zealand. Production costs included two control methods: herbicides and defoliation, with defoliation encompassing both physical means and biocontrol measures. The model was used to examine the economic value of a research programme into biological control of the weed, given several different future scenarios. These scenarios were high herbicide prices, a price premium for lamb raised without chemical herbicides, and development of herbicide resistance. The model results were used to estimate national impacts. If the only change in the agricultural sector was the cost of the biocontrol to the nation's farmers, the research programme to find an effective biocontrol agent had little economic impact. If other factors changed, such as the price of petroleum or levels of herbicide resistance in the weed. the model's results suggested that intensive sheep farming could grow or shrink by as much as NZ$219 million dollars over five years. In the latter case, having an alternative control method reduced potential losses and increased potential gains, resulting in a net benefit of between NZ$81 million and NZ$153 million. This work extended prior research in several ways. First. Californian thistle reproduces via root buds, which affected the modelling of weed behaviour. Secondly, the model allowed optimistation over continuous levels of weed control for two different methods. Thirdly, the model accounted for both weed control and damage to nitrogen-fixing clover from herbicide use. Finally, the research investigated optimal weed control in several different alternative future states.
文摘(Editor’s note) The adjustment of research orientation is an important aspect of the structural adjustment at research institutes under the CAS. In order to report the situation, Fan Chunliang, a reporter from this journal, interviewed some institute directors, asking them to air their views and ideas on the directional adjustment of their respective institutes. The following is his report about the interviews for the reference of readers.
文摘With the progress of the times and the leap of science and technology,the application of brick materials and the research on the brick skin in modern architectural design have shown a dual-track development trend of returning to tradition and innovation.Based on the core collection database resources of Web of Science and the CiteSpace visual analysis tool,this paper constructed and analyzed the spatio-temporal map of keyword co-occurrence network,cluster structure,mutation phenomenon,time course and regional distribution map of building brick skin research.The study revealed that in recent years,the research on brick materials has spanned the study of single material properties and extensively involved in the broad world of construction,especially in the integration of green energy-saving technology,the innovation of fine construction technology of brick skin,and the frontier exploration of digital technology in brick masonry,which has shown particularly significant research vitality and development potential.
文摘The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper expounds several core concepts related to research.In the end,the article summarizes the vast majority of navigation idioms from the perspective of language and cultural relations with the relevant published literature,as well as cnki.net and English journals,and rarely studies navigation idi⁃oms systematically from the perspective of semiotics.Therefore,it is necessary to carry out this study and find out the cultural simi⁃larities and differences from another perspective.
基金Supported by Coarse Cereal Innovation Team of Shandong Province Modern Agricultural Technology SystemYouth Foundation of Shandong Academy of Agricultural Sciences(2014QNM09)~~
文摘The research reviewed biological characters and nutritional value of Chenopodium quinoa and concluded status quo of domestic cultivation and problems at promotion, as wel as application prospect in order to provide references for re-search and development of Chenopodium quinoa.
文摘In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area and vacuum cold fresh chain to the cold chain breakage for horticultural products,and also to the investigation of principle and theory but the investigation results would have some evident difference. This paper will simply summarize the basic conception,principle,two withdrawing air type hypobaric storage technologies,and introduce many examples as mentioned above extending in China. This paper thinks that the master mechanism of preservation of LP for fresh horticultural products effectively inhibits the activity change of manifold enzymes,which are PAL,POD,PPO,CAT,CAD,SOD et al.,affecting the maturation and caducity of fresh horticultural products during LP storage for a short period,as a result,to reduce both risk of physiology obstacle and disease and to prolong their postharvest life; for the foreseeable future Burg's hypobaric storage technology and hypobaric short period treatment technology will play an important role in the preservation on fresh agricultural products and food preservation in storage and transportation,the preliminary processing of growing area,fresh logistics,establishing the operating platform of perishable food and high business value,fresh e-business,and fresh delivery for scattered families,establishing the operating platform of fresh-cut vegetables including edible fungi and so on in China or in the world.
基金funded by the"Experimental Exploration of Active Faults in Urban Areas(20041138)"project of the National Development and Reform Commission of China
文摘This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums up the process and development of quantitative investigation of active tectonics since the 1980s.The focus is on the main efforts and progress made in China on certain aspects of research,such as basic surveys and applied investigation of active tectonics,the study of theories related to regional active tectonics and their kinematics and geodynamics,surveys on coupling relations between deep and shallow structures,active fault surveys and prospecting and seismic hazard assessment in urban areas,as well as the efforts made using Quaternary geochronology.Furthermore,the paper looks back on Chinese quantitative investigation of active tectonics in China and sums up cognitions derived from studies on the determination of several basic and measurable parameters of active tectonics.These parameters include the length of fault and fault segmentation,coseismic slip and cumulative slip,fault slip rate,the sequence of paleoearthquake events and the time elapsed since the most recent event.At the same time,efforts and progress made in China on assessing the long-term seismic potential for active faults and evaluating the risk from potential active fault movement have been reviewed by summarizing research on developing theories,models,methods and the application of time-dependent seismic potential to probabilistic assessment,magnitude estimation for potential earthquakes on active faults,and the forecast of potential risk caused by active fault movement.Finally,in consideration of the realities and problems in the research of active tectonics in China,the authors put forward several suggestions for issues worthy of more attention for further investigation in the future.
文摘The research topic of this paper develops a case study approach that builds on the foundations of Yin's "linear model" and "the best practice" used in theoretical case studies at international research literature. It discusses the case study method and its role and focusing on research questions like healthcare branding, research design, and methodic. Also presents the case study research theory for a research case study. The methods used in this paper are based on hypothesis of a generic hospital branding strategy for the Romanian Private Hospital and also may apply to the Romanian strategy of development of public healthcare entities and partnerships between public and private healthcare entities. An empirical test of the relationships among branding loyalty and awareness, customer satisfaction, trust and relationship commitment suggests that Romanian hospitals can be successful in creating an image and positive brand equity if they can manage their customer relationships well. This can be done through a coordinated strategy of management and marketing development of healthcare entities. The results highlight the dominance of case-study research in qualitative marketing healthcare and highlight the importance of customer relationships in the branding practice of healthcare marketing. It also shows that marketing managers can succeed in creating positive brand equity and image if they can manage relationships with their customers well.
文摘All accounting and financial behaviors are rooted in specific institutional environments.These behaviors pertain to specific firms,and firms operate in different economic systems.Therefore,institutions such as the political,legal,economic,cultural,and religious institutions that shape an economic entity will surely
文摘ECOLOGY Characteristics of Soil Temperature in Shortrotation Eucalyptus Plantation Pan Yongjun1,Wang Bing2, Chen Bufeng1, Chen Jin1, Shi Xin1, LiHanqiang3 (1. Research Institute of TropicalForestry, Chinese Academy of Forestry(CAF),Guangzhou 510520, Guangdong, P.R.China; 2.
文摘Over the years SLA research has developed rapidly and continued to do so. There has been an enormous amount of empirical research directed at describing the characteristics of L2 learner language and how the change as acquisition takes place. There has also been growing interest in theory construction. This article mainly probes into five kinds of its developments.