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Measurement and Strategy Research on the Green Development Level for the New Energy Vehicle Industry in Chongqing City
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作者 HE Qian 《Journal of Literature and Art Studies》 2024年第3期247-264,共18页
This article takes 2016-2022 as the inspection period to construct an evaluation index system for the green development level of the new energy vehicle industry.The entropy method and comprehensive index are used to m... This article takes 2016-2022 as the inspection period to construct an evaluation index system for the green development level of the new energy vehicle industry.The entropy method and comprehensive index are used to measure the green development level of the new energy vehicle industry in Chongqing,and compared with neighboring provinces such as Yunnan,Guizhou,and Sichuan.Policy recommendations are proposed to promote the development of the new energy vehicle industry in Chongqing City. 展开更多
关键词 Chongqing City new energy vehicle industry green development level
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Professional Development of County-level Physical Education Teachers from the Perspective of the New Curriculum Standards:A Case Study of Huaiji County
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作者 Lina MA Yulin CHEN 《Meteorological and Environmental Research》 2024年第5期27-32,共6页
Using methods such as questionnaire survey and literature review,a survey was conducted on the professional development of physical education teachers in Huaiji County under the background of the new curriculum standa... Using methods such as questionnaire survey and literature review,a survey was conducted on the professional development of physical education teachers in Huaiji County under the background of the new curriculum standards.The research results found that physical education teachers in Huaiji County have a relatively good distribution structure in terms of teaching experience,age,and education level,but the gender ratio and professional title ratio need to be improved.In terms of professional competence,teachers have shown good performance in teaching implementation ability,but there is still room for improvement in teaching design ability.A certain proportion of teachers still express dissatisfaction with professional title promotion,hardware configuration satisfaction,salary and benefits,and school reward mechanisms.Based on this,this study proposes some measures to improve the professional development level of county-level physical education teachers,such as enhancing teachers teaching design and implementation abilities,strengthening the cultivation of technical action demonstration abilities,improving hardware configuration satisfaction and teaching effectiveness reflection level,strengthening guidance and support for teachers professional development,and enhancing the promotion and implementation of post employment training. 展开更多
关键词 new curriculum standards County-level physical education teachers Professional development
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Entrepreneurial Spirit for China in the New Era and Strategies for Cultivation
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作者 Xu Yuanhua He Jun +1 位作者 Sun Zao Li Xiaoke 《China Economist》 2024年第5期48-59,共12页
What type of entrepreneurial spirit is needed for China’s new era,and how can we unlock its innovation potential?Answers to these questions will unleash vital forces to drive China’s high-quality economic developmen... What type of entrepreneurial spirit is needed for China’s new era,and how can we unlock its innovation potential?Answers to these questions will unleash vital forces to drive China’s high-quality economic development.After reviewing the theories,dimensions,features,and limitations of the entrepreneurial spirit in the Western context,we concluded that the entrepreneurial spirit in China’s new era,which is characterized by patriotism,innovation,trustworthiness,adherence to the law,fulfillment of social responsibilities,and a global horizon,has overcome the limitations that come with self-interested entrepreneurship in the context of Western economics.This is a major step forward in the development of theories on entrepreneurial spirit.In the development context of the new era,this paper argues that the entrepreneurial spirit should become an important force at the individual level to implement the new development concept,foster the new development paradigm,and promote high-quality development in the new stage.This paper provides answers to the question of what type of entrepreneurial spirit China’s new era requires.Finally,this paper presents basic strategies for cultivating entrepreneurial spirit in the context of China’s new era,emphasizing the importance to promote the healthy growth of young entrepreneurs,ensure their business autonomy,develop a multi-tiered capital market,implement the factor market reforms,improve the business climate,and accelerate the digital transition. 展开更多
关键词 Context of China’s new era context of Western economics entrepreneurial spirit high-quality development cultivation strategy
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An Analysis of Lexical Features of English News Headlines and Their Translation Skills
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作者 于娟 《海外英语》 2011年第8X期214-215,共2页
A headline is an inseparable component of news, which serves the role of eyes. So wring a brief, accurate and eye-catching headline is very important. With plenty of practical examples given, the paper discusses lexic... A headline is an inseparable component of news, which serves the role of eyes. So wring a brief, accurate and eye-catching headline is very important. With plenty of practical examples given, the paper discusses lexical features of English news headlines through different aspects, including the use of nouns and midget words, vogue words, derivatives, nonce words, loans and so on. It also introduces some translating strategies according to their distinctive lexical characteristics. 展开更多
关键词 newS HEADLINE LEXICAL featureS TRANSLATION
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Ways to Cultivate and Develop Human Resources in the New Situation
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作者 Lei Wang Gengliang Yang 《Journal of Sustainable Business and Economics》 2024年第2期38-43,共6页
In the trend of globalization,digitization,and economic integration,human resources are the core competitiveness of enterprises,and cultivating and developing them is crucial for enhancing competitive advantages.This ... In the trend of globalization,digitization,and economic integration,human resources are the core competitiveness of enterprises,and cultivating and developing them is crucial for enhancing competitive advantages.This article delves into how human resource development drives enterprise innovation,promotes team collaboration,and optimizes performance management.Currently,although many enterprises are beginning to attach importance to human resource development,they still face problems such as insufficient investment,weak targeted training,and insufficient exploration of employee potential.Therefore,it is proposed that in the new situation,enterprises need to strengthen diversified training strategies,use digital tools to improve training efficiency,build a fair performance evaluation system,stimulate employee potential,and promote internal talent mobility.The implementation of these strategies will effectively enhance the efficiency of enterprise human resource management and consolidate market position. 展开更多
关键词 Human Resources CULTIVATION development new situation CHANNEL
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Economic Analysis and Research of New Energy Vehicle Promotion Model
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作者 Zihang Wang Xudong Wang +2 位作者 Zhenyin Zhang Shaolong Wang Chenyang Xu 《Proceedings of Business and Economic Studies》 2024年第1期169-179,共11页
New energy vehicles represent the inevitable trend of future development.Compared to traditional fuel vehicles,they are more energy-saving and environmentally friendly,effectively reducing air pollution and mitigating... New energy vehicles represent the inevitable trend of future development.Compared to traditional fuel vehicles,they are more energy-saving and environmentally friendly,effectively reducing air pollution and mitigating excessive exploitation of oil resources,a stance strongly supported by governments.However,new energy vehicles possess certain drawbacks in terms of price and usability compared to traditional counterparts.Therefore,external support is imperative for their development.This paper delineates four main sections:the background of new energy vehicle promotion and application,a comparative analysis of domestic and foreign promotion models,specific promotion suggestions,and future development prospects.By leveraging insights from economic analysis,the optimal promotion model for new energy vehicles is elucidated. 展开更多
关键词 new energy vehicle engineering Promotion model Economic analysis Sustainable development
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Analysis of Innovative Paths for Enterprise Marketing Management Development Strategy under the Background of New Media
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作者 Tao Chi 《Proceedings of Business and Economic Studies》 2024年第3期28-34,共7页
From the perspective of enterprise marketing strategy planning,innovative research should be conducted based on the current trends in new media.The findings should be applied to practical activities within enterprises... From the perspective of enterprise marketing strategy planning,innovative research should be conducted based on the current trends in new media.The findings should be applied to practical activities within enterprises to achieve innovation in marketing strategy decision-making in the new media environment.Enterprises should adopt advanced communication transmission technologies and big data processing capabilities to effectively leverage the hidden value and promotional planning advantages of network media platforms.This approach can enhance customer loyalty and increase demand for new products.Enterprises should integrate into the continuously evolving new media landscape,explore their potential business characteristics,and innovate promotional methods.By effectively combining product information with digital media content,companies can ultimately achieve significant increases in corporate interests. 展开更多
关键词 new media Enterprise marketing management development strategy INNOVATION
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Influence of new town development on the urban heat island-The case of the Bundang area 被引量:10
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作者 SONG Young-bae 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2005年第4期641-645,共5页
Five new towns have been developed around the Seoul metropolitan area since 1996 However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of... Five new towns have been developed around the Seoul metropolitan area since 1996 However, these new towns generate lots of traffic and related problems in the areas including those new towns and Seoul as a result of increases in population and a lack of ecological-self-sufficiency. Currently, construction of another new town is under deliberation, and what should be a major consider is the notion that the new town be located within a wide, green zone. Many studies have revealed that green space can play an important role in improving urban eco-meteorological capability and air quality. In order to analyze the urban heat island which will be created by the new urban development, and to investigate the local thermal environment and its negative effects caused by a change of land use type and urbanization, Landsat TM images were used for extraction of urban surface temperature according to changes of land use over the last 15 years. These data are analyzed together with digital land use and topographic information. As a study result, it was found the urban heat island of the study area from 1985 to 1999 rapidly developed which showed a difference of mean temperature above +2 0 Before the Bundang new town construction the temperature of the residential area was the same as a forest, but during the new town construction in 1991 analysis revealed the creation of an urban heat island. The temperature of a forest whose size is over 50% of the investigation area was lowest, and thus the presence of a forest is believed to have a direct cooling effect on the urban environment and its surroundings. The mean temperature of the residential and commercial areas in the study was found to be +4 5 higher than the forest, and therefore this part of land use is believed to be the main factor causing the temperature increase of the urban heat island. 展开更多
关键词 urban heat island new town development urban climate landsat TM nand 6 air corridor
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An Exploration of Higher Vocational English Teachers’Professional Development on Students’Learning Ability in the Context of New Liberal Arts
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作者 Jing Xu Mohd Nazir Bin Zabit 《Journal of Contemporary Educational Research》 2024年第2期203-207,共5页
The concept of New Liberal Arts,a multidisciplinary combined integrator with Chinese values at its core,has brought new challenges to the teaching methods and professional development of higher-level English teachers.... The concept of New Liberal Arts,a multidisciplinary combined integrator with Chinese values at its core,has brought new challenges to the teaching methods and professional development of higher-level English teachers.Based on the evolving professional development process of higher vocational English teachers in the context of the New Liberal Arts,this article analyzes how English teachers can integrate multidisciplinary knowledge and adopt advanced educational technology in the teaching process.On this basis,it discusses the role of teachers’professional development in enhancing students’learning ability,such as through deepening disciplinary understanding,adopting innovative teaching strategies,and implementing personalized teaching.At the end of the article,based on a variety of pedagogical theories,we put forward suggestions,including continuous professional training,interdisciplinary cooperation,and the application of innovative teaching techniques,which are mainly aimed at helping higher vocational English teachers get rid of the dilemma of the new situation,adapt to the needs of the new liberal arts education as soon as possible,and then effectively improve students’abilities. 展开更多
关键词 new liberal arts Higher vocational education Professional development of English teachers Interdisciplinary teaching Personalized teaching
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Construction of China Osmanthus City and Intellectual Property Right Protection in Xianning City in the Context of Three New Developments 被引量:12
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作者 Li GAO Zhiguo SUN +2 位作者 Yueqiu HE Jiandong LAI Hongguo CHEN 《Asian Agricultural Research》 2022年第9期1-6,15,共7页
Xianning City of Hubei Province is one of the five major traditional osmanthus producing areas in the world and the hometown of osmanthus in China. Xianning is constructing China Osmanthus City in the whole city. This... Xianning City of Hubei Province is one of the five major traditional osmanthus producing areas in the world and the hometown of osmanthus in China. Xianning is constructing China Osmanthus City in the whole city. This paper first introduces the main characteristics of the osmanthus industry in Xianning City, and analyzes the characteristics of traditional knowledge, biological genetic resources, new plant varieties, patents, geographical indications, and trademarks. Then, it studies the intellectual property resources of the osmanthus industry, and analyzes the main problems existing in the construction of China Osmanthus City and intellectual property right protection. Finally, it comes up with constructive recommendations including applying for China and Globally Important Agricultural Heritage Systems, developing colored-leaf osmanthus varieties, creating a regional public brand of osmanthus specialty products, and building a new development pattern of osmanthus industry. 展开更多
关键词 China Osmanthus City Three new developments(new development stage philosophy and paradigm) OSMANTHUS Intellectual property right High-quality development
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China’s Industrial Upgrading and Value Chain Restructuring Under the New Development Pattern 被引量:22
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作者 Ni Hongfu Tian Ye 《China Economist》 2021年第5期72-102,共31页
Global industrial chains(GICs)have become a hallmark of the world economy underpinning the global production cycle.Since the reform and opening up was introduced in 1978,China has taken an active role in global value ... Global industrial chains(GICs)have become a hallmark of the world economy underpinning the global production cycle.Since the reform and opening up was introduced in 1978,China has taken an active role in global value chains(GVCs)and become the world’s factory floor.Under the external shocks to GICs,such as US trade frictions with China and the COVID-19 pandemic,China’s traditional comparative advantages in manufacturing which include its labor force and costs are waning.This has manifested in a wave of industrial relocations from China to other countries as well as China’s weakening international competitiveness.We took stock of the concepts and journey of GVCs and elaborated the intrinsic relationship between GVCs and the new development pattern of“dual circulations”.We also analyzed the trends of GVCs,the current status and problems of China’s industrial chains,and China’s market heft,complete industrial chains and the digital economy as new strengths for industrial chain upgrade.In our conclusion,this paper put forth some policy recommendations for China’s industrial chain upgrade in the context of dual circulations. 展开更多
关键词 industrial chains industrial relocation new development pattern GVCs
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Resistance to targeted therapy in metastatic colorectal cancer:Current status and new developments 被引量:4
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作者 Yuan-Ling Tang Dan-Dan Li +2 位作者 Jia-Yu Duan Lei-Ming Sheng Xin Wang 《World Journal of Gastroenterology》 SCIE CAS 2023年第6期926-948,共23页
Colorectal cancer(CRC)is one of the most lethal and common malignancies in the world.Chemotherapy has been the conventional treatment for metastatic CRC(mCRC)patients.However,the effects of chemotherapy have been unsa... Colorectal cancer(CRC)is one of the most lethal and common malignancies in the world.Chemotherapy has been the conventional treatment for metastatic CRC(mCRC)patients.However,the effects of chemotherapy have been unsatisfactory.With the advent of targeted therapy,the survival of patients with CRC have been prolonged.Over the past 20 years,targeted therapy for CRC has achieved substantial progress.However,targeted therapy has the same challenge of drug resistance as chemotherapy.Consequently,exploring the resistance mechanism and finding strategies to address the resistance to targeted therapy,along with searching for novel effective regimens,is a constant challenge in the mCRC treatment,and it is also a hot research topic.In this review,we focus on the current status on resistance to existing targeted therapies in mCRC and discuss future developments. 展开更多
关键词 Colorectal cancer Targeted treatment RESISTANCE new development
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Impact of the synergy between technology management and technological capability on new product development:a system dynamics approach 被引量:2
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作者 MA Qian WU Weiwei +2 位作者 LIU Yexin LIANG Zhou KOU Lingzhi 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2022年第1期105-119,共15页
This paper employs system dynamics to explore how the synergy between technology management and technological capability affects new product development.The results show that the synergy between technology management ... This paper employs system dynamics to explore how the synergy between technology management and technological capability affects new product development.The results show that the synergy between technology management and technological capability has positive impact on new product development.Moreover, the leading synergy processes between technology management and technological capability in different new product development stages are different.This paper deepens the theoretical understanding of how to achieve new product development, and also provides useful guidance for firms to implement new product development. 展开更多
关键词 technology management technological capability new product development system dynamics
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Exploring Barriers and Opportunities in Adopting Crowdsourcing Based New Product Development in Manufacturing SMEs 被引量:1
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作者 QIN Shengfeng David VAN der VELDE +2 位作者 Emmanouil CHATZAKIS Terry McSTEA Neil SMITH 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2016年第6期1052-1066,共15页
Crowdsourcing is an innovative business practice of obtaining needed services, ideas, or content or even funds by soliciting contributions from a large group of people (the 'Crowd'). The potential benefits of util... Crowdsourcing is an innovative business practice of obtaining needed services, ideas, or content or even funds by soliciting contributions from a large group of people (the 'Crowd'). The potential benefits of utilizing crowdsourcing in product design are well-documented, but little research exists on what are the barriers and opportunities in adopting crowdsourcing in new product development (NPD) of manufacturing SMEs. In order to answer the above questions, a Proof of Market study is carried out on crowdsourcing-based product design under an Innovate UK funded Smart project, which aims at identifying the needs, challenges and future development opportunities associated with adopting crowdsourcing strategies for NPD. The research findings from this study are reported here and can be used to guide future development of crowdsourcing-based collaborative design methods and tools and provide some practical references for industry to adopt this new and emerging collaborative design method in their business. 展开更多
关键词 new product development open design innovation collaborative design crowdsourcing MANUFACTURING SMES
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Hotspots of seabirds and marine mammals between New Zealand and the Ross Gyre:importance of hydrographic features 被引量:2
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作者 Claude R.JOIRIS Grant R.W.HUMPHRIES 《Advances in Polar Science》 2018年第4期254-261,共8页
This article is part of our long-term study on the quantitative at-sea distribution of the marine "upper trophic levels"—seabirds and marine mammals—in polar ecosystems, aiming at quantifying the factors i... This article is part of our long-term study on the quantitative at-sea distribution of the marine "upper trophic levels"—seabirds and marine mammals—in polar ecosystems, aiming at quantifying the factors influencing their distribution as well as detecting possible spatial and temporal changes, with special attention to hydrography and to global climate changes. During an expedition of icebreaking RV Polarstern in February 2010, along the North–South transect between New Zealand and the Ross Gyre, off the Ross Sea, 3200 seabirds belonging to 22 identified pelagic species were recorded during 338 half-hour transect counts. Four major hotspots were identified. These were in Sub-tropical Water off New Zealand(up to 300 birds per count), and at the main Southern Ocean fronts: the Sub-Antarctic Front(up to 240 per count), the Antarctic Front(up to 150 per count) and the Polar Front(up to 200 per count), representing the vast majority of recorded seabirds. The most numerous species in the three frontal zones were: prions—mainly slender-billed Pachyptila belcheri—and Salvin’s albatross Thalassarche [cauta]salvini. The eight more abundant species represented 2650 birds, i.e. more than 80% of the total. A random forest clustering method identified four groups of seabird species occupying similar oceanographic niches. 展开更多
关键词 seabird at-sea distribution transect from new Zealand to Antarctica hydrographic features
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Land use suitability analysis for town development planning in Nanjing hilly areas: A case study of Tangshan new town, China 被引量:2
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作者 YANG Yang TANG Xiao-lan LI Zhe-hui 《Journal of Mountain Science》 SCIE CSCD 2021年第2期528-540,共13页
Land use suitability analysis plays an important role in sustainable land use and solving environmental problems caused by rapid urban development.A land use suitability mapping approach for town development planning ... Land use suitability analysis plays an important role in sustainable land use and solving environmental problems caused by rapid urban development.A land use suitability mapping approach for town development planning in hilly areas was constructed based on two multi-criteria evaluation methods:Weighted Linear Combination(WLC)and Ordered Weighted Averaging(OWA),to comparatively evaluate and map land use suitability of Tangshan new town in Nanjing,China.Fourteen evaluation factors related to topographic,environmental,socio-economics and historical sites data were used as suitability criteria.The analytic hierarchy process(AHP)method and GIS techniques were integrated into the evaluation models to create the land use suitability map for town development planning.The results of WLC approach showed that 11.4%of the total area is highly suitable while the 48.6%is unsuitable.The results of WLC and OWA approach showed the distribution of degree of land use suitability is almost the same.The areas located at the southern and eastern flat regions are highly suitable for land use,whereas the areas close to the mountain forests,steep slopes,waters,and hot springs,have lower suitability for land use.Sensitivity analysis indicated that the suitability results of the two proposed methods are robust.Indirect validation was achieved by mutual comparison of suitability maps derived from the WLC and OWA methods.It demonstrated that the overall agreement is 90.81%and kappa coefficient is 0.81,indicating that both methods provide very similar spatial suitability distributions.By overlaying the resultant map with the previous master plan map of Tangshan new town,the overlay map once again indicated a satisfactory ecological fit between the two maps.At last,several recommendations are proposed aiming at improving the long-term town development plan for Tangshan new town. 展开更多
关键词 Town development Land use suitability Weighted linear combination Ordered weighted averaging Sensitivity analysis Tangshan new town
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Research on the Harmonious Development of New Rural Communities under the Perspective of Balancing Urban and Rural Areas 被引量:2
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作者 ZHANG Jing 《Asian Agricultural Research》 2011年第7期39-42,共4页
On the basis of offering a definition of New Rural Communities (NRCs), the paper analyzes the values of New Rural Communities and argues that the construction of NRCs is able to contribute to the enhancement of the co... On the basis of offering a definition of New Rural Communities (NRCs), the paper analyzes the values of New Rural Communities and argues that the construction of NRCs is able to contribute to the enhancement of the comprehensive agricultural production capability as well as the development of social productivity. Meanwhile the incomes of the rural residents can be boosted, which denotes the realization of a harmonious society where the achievements of China's reform and development are shared by each citizen. Moreover, the construction of NRCs facilitates the economization of land use and thus improves the overall living standard of the residents, while helping to cut the administrative cost and promote democracy at the primary level. This paper also points out various problems arising during the construction of NRCS in China: blindly following suit in accordance with the modes of the urban communities; lack of funds, which leads to the absence of the supporting mechanisms of NRCs; vague positioning and the ensuing shortage of impetus for continued development. Finally, the paper raises the corresponding measures and suggestions: first, based on reality, make overall planning and scientific arrangement; second, the government should play the dominant role while respecting the principal position of the rural residents and introducing the market mechanism; third, increase science and technology input and attach equal importance to economic and social benefits; fourth, broaden fund-raising channels while completing the supervision mechanism. 展开更多
关键词 Balancing urban and rural areas new Rural Communities Harmonious development China
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Spatio-temporal Evolution Characteristics and Driving Mechanism of the New Infrastructure Construction Development Potential in China 被引量:1
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作者 GU Tianshi ZHANG Peng ZHANG Xujia 《Chinese Geographical Science》 SCIE CSCD 2021年第4期646-658,共13页
With the advent of the era of big data and artificial intelligence, new infrastructure construction(NIC) has attracted the attention of many countries. The development of NIC provides an opportunity to bridge the digi... With the advent of the era of big data and artificial intelligence, new infrastructure construction(NIC) has attracted the attention of many countries. The development of NIC provides an opportunity to bridge the digital divide and narrow the regional gap,providing continuous impetus to further promote economic development. Here, we considered 31 provincial-level administrative units in China(not including Hong Kong, Macao, and Taiwan of China due to data unavailable) and established comprehensive evaluation indicators for the development potential of NIC. Afterward, we used the entropy-weight TOPSIS model to determine the development potential of NIC and analyze its spatio-temporal evolution characteristics. Furthermore, the GeoDetector model was applied to explore the driving mechanism of the NIC development potential. The conclusions were as follows: (1) The Chinese NIC development potential is generally low. The eastern China was the region with the highest development potential year by year, while the development potential in the central China was found to be in an accelerating phase. (2) The evolution of the Chinese NIC development potential’s spatial pattern has been characterized by an inland extension and coastal agglomeration. Moreover, we identified a superior development zone, a rising development zone, an inferior development zone, and a declining development zone. (3) The scope of Chinese NIC development potential agglomeration areas has gradually expanded and its degree has gradually deepened. The range of high-value agglomeration in eastern area gradually expanded and its degree gradually deepened. (4) Investment in innovative talents appears as the core factor affecting the Chinese NIC development potential. Whether acting alone or synergistically with other factors, its promoting effect on Chinese NIC development potential is the strongest. 展开更多
关键词 new infrastructure construction development potential spatio-temporal evolution driving mechanism China
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Arginine: New and Exciting Developments for an“Old”Amino Acid 被引量:1
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作者 LOUIS BEAUMIER LETICIA CASTILLO +3 位作者 YONG-MING YU ALFRED M. AJAMI AND VERNON R. YOUNG(Laboratory of Human Nutrition, School of Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA Shriners Burns Institute,Boston, MA, 02114 USA mass Tra 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1996年第2期296-315,共20页
Arginine (2-amino-5-guanidino pentanoic acid) was shown in 1895 by Hedin to be present in the proteins of horn. Metabolic nitrogen balance studies, conducted in 1957 by Rose in human adults and in 1959 by Snyderman an... Arginine (2-amino-5-guanidino pentanoic acid) was shown in 1895 by Hedin to be present in the proteins of horn. Metabolic nitrogen balance studies, conducted in 1957 by Rose in human adults and in 1959 by Snyderman and coworkers in young infants, revealed that a dietary source of this amino acid was not an obligatory requirement for growth and maintenance of nitrogen homeostasis in healthy individuals. Hence, It was initially classified as a non-essential (dispensable) amino acid and, perhaps, for reasons of this classification arginine did not receivc the earlier atteniion it now deserves, in relation to an understanding of the nutritional biochemistry and physiology of its metabolism in humans subjects. However, there is currently a considerable interest in the cellular and tissue functions, as well as clinical, therapeutic significance, of arginine. In this paper we review the multiple functions of arginlne, including its role in the L-arginine-nitric oxide pathway,cellular regeneration, immune function, protein synthesis and protein breakdown. We then consider some in vivo aspects of the physiology of arginine metabolism, which varies greatly among eukaryotes, with particular reference to humans. Against this background, studies of arginine in the nutrition of humans under various pathophysiological conditions are reviewed briefly. Finally, a new, updated concept for the metabolic basis for the 'conditional essentiality' of arginine is proposed 展开更多
关键词 Amino Acid USA OLD ARGININE new and Exciting developments for an
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New Developments on Existence and Uniqueness of Solutions to Some Models in Atmospheric Dynamics 被引量:4
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作者 穆穆 曾庆存 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1991年第4期383-398,共16页
This survey is concerned with the new developments on existence and uniqueness of solutions of some basic models in atmospheric dynamics, such as two-and three-dimensional quasi-geostrophic models and three-dimensiona... This survey is concerned with the new developments on existence and uniqueness of solutions of some basic models in atmospheric dynamics, such as two-and three-dimensional quasi-geostrophic models and three-dimensional balanced model. The main aim of this paper is to introduce some results about the global and local (with respect to time) existence of solutions given by the authors in recent years, but others' important contributions and the literature on this subject are also quoted. We discuss briefly the relationships among the existence and uniqueness, physical instability and computational instability. In the appendixes, some key mathematical techniques in obtaining our results are presented, which are of vital importance to other problems in geophysical fluid dynamics as well. 展开更多
关键词 new developments on Existence and Uniqueness of Solutions to Some Models in Atmospheric Dynamics
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