Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adoles...Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adolescents has attracted widespread attention from all sectors of society. Comprehensive myopia prevention and control efforts have been launched nationwide. Popular science education, vision screening, and improving visual environments are effective measures for preventing myopia. However, among the target audience for comprehensive myopia prevention and control, the preschool children group has been neglected, and the work of myopia prevention and control for this group has been significantly weakened and marginalized. Due to insufficient awareness of prevention and control, the hyperopia reserve in the preschool children group is being continuously depleted, leading to the early onset of myopia. In light of this situation, the focus of myopia prevention and control needs to shift forward, and it is worth exploring and pondering how college students with a background in optometry can develop entertaining and engaging popular science education materials and methods.展开更多
The essay has two main purposes.The first consists of discussing some literary and philosophical thoughts on the epistemological value of science by one of the most famous and celebrated poets in Italian literature,Gi...The essay has two main purposes.The first consists of discussing some literary and philosophical thoughts on the epistemological value of science by one of the most famous and celebrated poets in Italian literature,Giacomo Leopardi.The poet firmly believes in the cognitive power of science,capable of revealing false beliefs with the light of reason.However,in his mature reflections,what will radically change will not be the value of scientific activity itself,always admirably accepted,but rather its true salvific force.Leopardi was not a scientist,but he used the scientific culture of his time to critically address the great existential themes of man concerning nature and the universe.He had amply demonstrated a scientific culture since his youthful'History of Astronomy',which would reappear in many of his other literary works.His deep and meditative reflections on the nature of finite and infinite space and time are a clear and fruitful testimony to this.However,Giacomo writes icastically,reason alone is not enough;it needs imagination.The second concerns a first reconstruction of the influence that the philosophy of Enlightenment had on Leopardi’s thought especially in relation to these topics:atheism,rejection of providentialism and anthropocentrism,the conception of nature,the question of the relationship between human and animal intelligence,the rejection of metaphysics,the importance of scientific knowledge.展开更多
The functions of medicinal botanical gardens are introduced firstly,and then the application status and planning principles of medicinal botanical gardens based on the theme of science popularization education are ana...The functions of medicinal botanical gardens are introduced firstly,and then the application status and planning principles of medicinal botanical gardens based on the theme of science popularization education are analyzed.Moreover,a typical application case is analyzed and summarized.Constructing a scientific medicinal botanical garden is conducive to increasing people's understanding of medicinal plants,and also meets the requirements of current national policies,thereby generating greater economic and social benefits.展开更多
Both Chinese Communist Party and central government have pointed out in clear terms that, in order to enforce the national strategy for socioeconomic development, i.e. to rejuvenate Chinese nation by scientific and ed...Both Chinese Communist Party and central government have pointed out in clear terms that, in order to enforce the national strategy for socioeconomic development, i.e. to rejuvenate Chinese nation by scientific and educational means, we must upgrade S&T progress to a crucial position in展开更多
P values based on standard hypothesis testing are commonly reported in articles published by the Journal of Forestry Research(JFR).However,effect sizes are barely used and reported,even if they are of direct relevance...P values based on standard hypothesis testing are commonly reported in articles published by the Journal of Forestry Research(JFR).However,effect sizes are barely used and reported,even if they are of direct relevance to the primary questions of many of the published studies.The incorporation of effect sizes in studies published by JFR should be encouraged and promoted.Inclusion of effect sizes as a requirement in the journal guidelines will facilitate a major change in the way data are tested and interpreted,with the ultimate goal to exempt researchers from the custom of drawing conclusions merely based upon a dichotomous statistical result(P value).Such a policy can also lead to more informed decisions of whether identified effects are of practical relevance to the forestry.展开更多
Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will ...Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will virtually strengthen people’s protection awareness of urban geological landscape.Urban geopark landscape is featured by unique typical geological characteristics.It is a realistic problem that troubles the planning and design of geological landscape popular science exhibition in urban geopark by effectively protecting these geological landscapes and upgrading them into urban popular science leisure tourism resources.Taking Zhengzhou Yellow River National Geopark as an example,this paper systematically studies the planning and design of geological landscape popular science exhibition in urban geopark.展开更多
The form of agricultural products promotion is also constantly updated with the continuous development of science and technology in recent years.Intelligent agriculture gradually leads the scientific and technological...The form of agricultural products promotion is also constantly updated with the continuous development of science and technology in recent years.Intelligent agriculture gradually leads the scientific and technological process of agricultural products planting,production,promotion and other fields,making agricultural production more efficient and controllable.The use of popular science animation in the innovative design and promotion of agricultural products will help to drive the agricultural economy,conform to the current new situation,and improve the competitiveness of agricultural products with the help of scientific and technological strength and innovation consciousness in this environment.展开更多
A recent novel coronavirus(COVID-19)outbreak has started since December 2019 in Wuhan,Hubei province,People’s Republic of China and has progressively expanded to various parts of China.Based on those practical proble...A recent novel coronavirus(COVID-19)outbreak has started since December 2019 in Wuhan,Hubei province,People’s Republic of China and has progressively expanded to various parts of China.Based on those practical problems of emergency science popularization works in the current epidemic situation,this article,from the perspective of accuracy,timeliness and acceptability of emergency science popularization,proposes that the professional science popularization knowledge should be popularized,rumor should be refuted in a timely manner,and accurate science popularization strategies should be taken for different science preference,so to provide countermeasures and guidance for problems in emergency science popularization.展开更多
In this paper,new situation faced by meteorological science popularization work of China is analyzed. Based on analyzing the challenges faced by Hubei meteorological science popularization work,the suggestions of Hube...In this paper,new situation faced by meteorological science popularization work of China is analyzed. Based on analyzing the challenges faced by Hubei meteorological science popularization work,the suggestions of Hubei meteorological science popularization work during the " 13 th five-year" period are proposed from four aspects: further optimize operation mechanism of meteorological science popularization work,and improve work efficiency; combine full-time and part-time teams,and promote the fighting capacity of the science popularization team; adapt to the demand of multimedia publicity,and expand the connotation of popular science creation; build brand,and create a stereoscopic science popularization network.展开更多
Popular science tourism is a new tourism mode, and geopark scenic area is an important carrier of popular science tourism. It is the premise and foundation for the popular science tourism development of geoparks to es...Popular science tourism is a new tourism mode, and geopark scenic area is an important carrier of popular science tourism. It is the premise and foundation for the popular science tourism development of geoparks to establish a scientific evaluation index system and evaluation model. On the basis of analyzing relevant evaluation models, this paper explored the evaluation system and model of geopark popular science tourism in following steps. First, establish the index system. Based on the theory method, frequency method, and expert consultation method, this paper established the popular science tourism evaluation index system of geopark scenic area. The evaluation index system includes 3 primary indexes, 8 secondary indexes and 30 tertiary indexes. Second, define index weight and scoring standards. Index weights were defined using Analytic Hierarchy Process(AHP), the measuring method of each index and the scoring standards were specified. Third, evaluation model and grade. The evaluation model of popular science tourism development was constructed, and the evaluation results were classified into 4 grades. Fourth, empirical study. The evaluation model was applied to measure and investigate popular science tourism of Henan Yuntain Mountain World Geopark, and the final score was 7.619, indicating a higher evaluation grade of popular science tourism of the park.展开更多
Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gar...Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gardens lack professional characteristics;the education and science popularization system is extensive;and the investment and construction model and operation and management method are relatively rigid.Through combing the development history of The Morton Arboretum and introducing its construction features,such as the long-term garden-establishing idea with a high starting point,continuously building and improving for a long time to actively adapt to changes in social needs,a refi ned education and science popularization system for various groups,and a strong self-hematopoietic function,the successful construction experience of The Morton Arboretum is elaborated and the enlightenment from The Morton Arboretum to the construction of botanic gardens China are put forward,so as to provide a reference for the construction and development of botanic gardens in China in the new period.展开更多
Purpose:.To compare the education effect of video demonstrations and conventional teaching on the prevention and control of myopia.Methods:.Eighty students were randomly divided into an experimental(n=40) and a contro...Purpose:.To compare the education effect of video demonstrations and conventional teaching on the prevention and control of myopia.Methods:.Eighty students were randomly divided into an experimental(n=40) and a control(n=40) group,.and each group was split into two classes of 40 students..The students in the experimental group attended classes mainly based on video demonstration and those in the control group received conventional teaching..All students then undertook a test and the examination scores were statistically compared between the two groups.Results:.The educational background,.age,.and gender did not differ between the two groups(all P >0.05). The experimental group had a mean test score of 8.25±1.45,.which was slightly lower than the mean of 8.58±1.11 in the control group,but the difference was not statistically significant(t=-1.589,P=0.114).Conclusion:.The educational effect of video demonstrations was almost identical to that of traditional teaching..In addition,.video classes reduced the training time and financial costs,.indicating that they deserve widespread application.展开更多
While chemistry is popular for children of primary school age, its popularity drops dramatically in secondary schools. A potential solution to address this is to recognise the need for greater relevance-relevance to t...While chemistry is popular for children of primary school age, its popularity drops dramatically in secondary schools. A potential solution to address this is to recognise the need for greater relevance-relevance to the curriculum, to the needs of society and, in the eyes of the students. The paper tries to puts forward a rethink of the philosophy for school chemistry education, based on the underlying belief that chemistry education is an integral part of education. The target is labelled scientific and technological literacy for all (STL). STL rejects the notion that chemistry is taught solely to acquire the abilities to be a scientist and supports the vision of a single curriculum goal, applicable to all students. Besides being a philosophy, STL is also a teaching approach. This approach is to initiate the teaching of chemistry topics, starting from a carefully chosen society perspective and to introduce the conceptual learning on a need-to-know basis. A limitation is the professional development of teachers. Suggestion for overcoming this involve workshop on materials development. A concern is expressed in cases where teachers make use of ready-made teaching materials (a common practice), without first gaining an understanding and an appreciation of the intended philosophy related to these materials.展开更多
Snow cover provides essential resources and services for human well-being and socioeconomic development in arid areas. With the change in snow cover resulting from climate change that causes concerns about its consequ...Snow cover provides essential resources and services for human well-being and socioeconomic development in arid areas. With the change in snow cover resulting from climate change that causes concerns about its consequences, there is a pressing need to analyze and understand its impact on the benefits that people has been enjoying from snow cover. These can be derived from the variation in economic value of snow services, that are demanded to meet socioeconomic activities. Based on the average decline mass of snow cover from 1979 to 2016 in Irtysh River Basin, we use the approach by applying economic evaluation to estimate the annual value loss of snow services. Considering the decreasing trend of snow cover mass at rates of 10.2 Mt per year (p < 0.05) or 0.3% per year, the annual service loss in Irtysh River Basin is currently worth up to CN 196 million. Within it, the service loss of climate regulation contributes the most, or about CN 84.7 million. The loss of freshwater service contributes only about 19%, implying that there would be a significant underestimation of service loss if only water supply would be considered. This may cause biased decision-making when we are facing the challenges of declining services as a result of climate change, impacting on the balancing of socioeconomic development and environment conservation for the sustainability over a long term.展开更多
In recent years,Kaifeng Meteorological Bureau and Kaifeng Municipal Meteorological Society seriously think how to strengthen the construction of science popularization base,and take below measures improving the influe...In recent years,Kaifeng Meteorological Bureau and Kaifeng Municipal Meteorological Society seriously think how to strengthen the construction of science popularization base,and take below measures improving the influence of " national science popularization education base" and further increasing the propaganda of meteorological popular science knowledge. Firstly,launching periodical meteorological science popularization into campus,village and community,and holding meteorological science forum; secondly,cooperating with municipal science association and Science and Technology Bureau,and jointly issuing the related documents of carrying out the propaganda of meteorological science popularization;thirdly,co-constructing campus weather station and meteorological science popularization demonstration community; fourthly,setting up special meteorological science lecture and report meeting; fifthly,integrating meteorological science with studies of Chinese ancient civilization based on innovation. In the form of recreation and loved by the masses,the propaganda of meteorological popular science knowledge is done well,and people recognizing,understanding,grasping and applying meteorological science is improved,thereby reaching the target of decreasing the damages of meteorological disaster to social economy and human life and property.展开更多
With the increase of science popularization, evaluation of science popularization has become an urgent demand. Considering science popularization bases as independent agents, a self-determined evaluation approach for ...With the increase of science popularization, evaluation of science popularization has become an urgent demand. Considering science popularization bases as independent agents, a self-determined evaluation approach for science popularization using induced ordered weighted averaging (IOWA) operator and particle swarm optimization (PSO) is proposed in this paper.Firstly, six factors including science popularization personnel, space, fund,media, activity and influence are selected to construct an index system for science popularization evaluation. On this basis, the absolute dominance and relative dominance of evaluation indexes are used as induced components, and the prior order of the evaluation indexes is determined. Besides, the optimization model of index weighted vectors is established by IOWA operator, index weighted vectors are calculated by particle swarm optimization algorithm, and index weighted vectors and evaluation value vectors are obtain. Finally, the optimal evaluation vectors and evaluation results are given according to the Perron-Frobenius decision eigenvalve theorem .展开更多
Supply chain management (SCM) is a strategy for global competition. The characteristics of SCM are integration, systematic and coordination. Using systematic, coordination thoughts and integration theory, a new model ...Supply chain management (SCM) is a strategy for global competition. The characteristics of SCM are integration, systematic and coordination. Using systematic, coordination thoughts and integration theory, a new model of enterprise integration based on supply chain management is put forward and an implementing paradigm for systematic methodology of supply chain management is developed.展开更多
文摘Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adolescents has attracted widespread attention from all sectors of society. Comprehensive myopia prevention and control efforts have been launched nationwide. Popular science education, vision screening, and improving visual environments are effective measures for preventing myopia. However, among the target audience for comprehensive myopia prevention and control, the preschool children group has been neglected, and the work of myopia prevention and control for this group has been significantly weakened and marginalized. Due to insufficient awareness of prevention and control, the hyperopia reserve in the preschool children group is being continuously depleted, leading to the early onset of myopia. In light of this situation, the focus of myopia prevention and control needs to shift forward, and it is worth exploring and pondering how college students with a background in optometry can develop entertaining and engaging popular science education materials and methods.
文摘The essay has two main purposes.The first consists of discussing some literary and philosophical thoughts on the epistemological value of science by one of the most famous and celebrated poets in Italian literature,Giacomo Leopardi.The poet firmly believes in the cognitive power of science,capable of revealing false beliefs with the light of reason.However,in his mature reflections,what will radically change will not be the value of scientific activity itself,always admirably accepted,but rather its true salvific force.Leopardi was not a scientist,but he used the scientific culture of his time to critically address the great existential themes of man concerning nature and the universe.He had amply demonstrated a scientific culture since his youthful'History of Astronomy',which would reappear in many of his other literary works.His deep and meditative reflections on the nature of finite and infinite space and time are a clear and fruitful testimony to this.However,Giacomo writes icastically,reason alone is not enough;it needs imagination.The second concerns a first reconstruction of the influence that the philosophy of Enlightenment had on Leopardi’s thought especially in relation to these topics:atheism,rejection of providentialism and anthropocentrism,the conception of nature,the question of the relationship between human and animal intelligence,the rejection of metaphysics,the importance of scientific knowledge.
基金Special Foundation for Science and Technology Innovation Strategy of Guangdong Province in 2021(Science and Technology Innovation of College Students Cultivation)(pdjh2021b0940).
文摘The functions of medicinal botanical gardens are introduced firstly,and then the application status and planning principles of medicinal botanical gardens based on the theme of science popularization education are analyzed.Moreover,a typical application case is analyzed and summarized.Constructing a scientific medicinal botanical garden is conducive to increasing people's understanding of medicinal plants,and also meets the requirements of current national policies,thereby generating greater economic and social benefits.
文摘Both Chinese Communist Party and central government have pointed out in clear terms that, in order to enforce the national strategy for socioeconomic development, i.e. to rejuvenate Chinese nation by scientific and educational means, we must upgrade S&T progress to a crucial position in
基金co-supported by the Outstanding Action Plan of Chinese Sci-tech Journals(Grant No.OAP–C–077)the Startup Foundation for Introducing Talent of Nanjing University of Information Science&Technology(NUIST),Nanjing,China(Grant No.003080)the Jiangsu Distinguished Professor Program of the People’s Government of Jiangsu Province。
文摘P values based on standard hypothesis testing are commonly reported in articles published by the Journal of Forestry Research(JFR).However,effect sizes are barely used and reported,even if they are of direct relevance to the primary questions of many of the published studies.The incorporation of effect sizes in studies published by JFR should be encouraged and promoted.Inclusion of effect sizes as a requirement in the journal guidelines will facilitate a major change in the way data are tested and interpreted,with the ultimate goal to exempt researchers from the custom of drawing conclusions merely based upon a dichotomous statistical result(P value).Such a policy can also lead to more informed decisions of whether identified effects are of practical relevance to the forestry.
基金Sponsored by Special Cultural Research Project of Xing Culture Engineering of Henan Province(2022XWH132).
文摘Urban geopark is the backyard garden of urban residents’life.Geological landscape popular science exhibition enables people to receive geological popular science knowledge easily and happily while playing,which will virtually strengthen people’s protection awareness of urban geological landscape.Urban geopark landscape is featured by unique typical geological characteristics.It is a realistic problem that troubles the planning and design of geological landscape popular science exhibition in urban geopark by effectively protecting these geological landscapes and upgrading them into urban popular science leisure tourism resources.Taking Zhengzhou Yellow River National Geopark as an example,this paper systematically studies the planning and design of geological landscape popular science exhibition in urban geopark.
基金Research results of guangdong Science and Technology Planning project in 2020"Innovative Design and Promotion of Agricultural Products under the Future Intelligent Agricultural Ecology"Excellent Popular Science Works Creation(number:2020A1414050042).
文摘The form of agricultural products promotion is also constantly updated with the continuous development of science and technology in recent years.Intelligent agriculture gradually leads the scientific and technological process of agricultural products planting,production,promotion and other fields,making agricultural production more efficient and controllable.The use of popular science animation in the innovative design and promotion of agricultural products will help to drive the agricultural economy,conform to the current new situation,and improve the competitiveness of agricultural products with the help of scientific and technological strength and innovation consciousness in this environment.
基金This study is supported by the Key Research Base of Philosophy and Social Sciences in Shaanxi Province,Shaanxi Health Culture Research Center Projects(Grand JKWH2019-Q19)China Association for Science and Technology Graduate Science Communication Ability Promotion Project(Grant No.kxyjskpxm2019024 and kxyjskpxm2019055)+1 种基金2018 Ministry of Education Youth Fund Project of Humanities and Social Science(Grand No.18YJC860032)Liaoning Social Science Planning Fund Project(Grand No.L18DXW002).
文摘A recent novel coronavirus(COVID-19)outbreak has started since December 2019 in Wuhan,Hubei province,People’s Republic of China and has progressively expanded to various parts of China.Based on those practical problems of emergency science popularization works in the current epidemic situation,this article,from the perspective of accuracy,timeliness and acceptability of emergency science popularization,proposes that the professional science popularization knowledge should be popularized,rumor should be refuted in a timely manner,and accurate science popularization strategies should be taken for different science preference,so to provide countermeasures and guidance for problems in emergency science popularization.
文摘In this paper,new situation faced by meteorological science popularization work of China is analyzed. Based on analyzing the challenges faced by Hubei meteorological science popularization work,the suggestions of Hubei meteorological science popularization work during the " 13 th five-year" period are proposed from four aspects: further optimize operation mechanism of meteorological science popularization work,and improve work efficiency; combine full-time and part-time teams,and promote the fighting capacity of the science popularization team; adapt to the demand of multimedia publicity,and expand the connotation of popular science creation; build brand,and create a stereoscopic science popularization network.
基金Sponsored by National Natural Science Foundation of China(41301641)National Social Science Foundation of China(15BJY130)+1 种基金Open Project of Henan Collaborative Innovation Center of Central Plain Economic Zone Smart Tourism(2015-ZHLV-006,2015-ZHLV-002)2015"10,000 Tourism Talents Plan"of National Tourism Administration(WMYC20151037)
文摘Popular science tourism is a new tourism mode, and geopark scenic area is an important carrier of popular science tourism. It is the premise and foundation for the popular science tourism development of geoparks to establish a scientific evaluation index system and evaluation model. On the basis of analyzing relevant evaluation models, this paper explored the evaluation system and model of geopark popular science tourism in following steps. First, establish the index system. Based on the theory method, frequency method, and expert consultation method, this paper established the popular science tourism evaluation index system of geopark scenic area. The evaluation index system includes 3 primary indexes, 8 secondary indexes and 30 tertiary indexes. Second, define index weight and scoring standards. Index weights were defined using Analytic Hierarchy Process(AHP), the measuring method of each index and the scoring standards were specified. Third, evaluation model and grade. The evaluation model of popular science tourism development was constructed, and the evaluation results were classified into 4 grades. Fourth, empirical study. The evaluation model was applied to measure and investigate popular science tourism of Henan Yuntain Mountain World Geopark, and the final score was 7.619, indicating a higher evaluation grade of popular science tourism of the park.
基金Sponsored by Open Foundation of the Key Laboratory of Urban Land Resources Monitoring and Simulation of the Ministry of Land and Resources,China(KF-2019-04-072).
文摘Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gardens lack professional characteristics;the education and science popularization system is extensive;and the investment and construction model and operation and management method are relatively rigid.Through combing the development history of The Morton Arboretum and introducing its construction features,such as the long-term garden-establishing idea with a high starting point,continuously building and improving for a long time to actively adapt to changes in social needs,a refi ned education and science popularization system for various groups,and a strong self-hematopoietic function,the successful construction experience of The Morton Arboretum is elaborated and the enlightenment from The Morton Arboretum to the construction of botanic gardens China are put forward,so as to provide a reference for the construction and development of botanic gardens in China in the new period.
基金Science and Technology Plan Program of Guangzhou(Special fund for science popularizationGrant:2013KP084)
文摘Purpose:.To compare the education effect of video demonstrations and conventional teaching on the prevention and control of myopia.Methods:.Eighty students were randomly divided into an experimental(n=40) and a control(n=40) group,.and each group was split into two classes of 40 students..The students in the experimental group attended classes mainly based on video demonstration and those in the control group received conventional teaching..All students then undertook a test and the examination scores were statistically compared between the two groups.Results:.The educational background,.age,.and gender did not differ between the two groups(all P >0.05). The experimental group had a mean test score of 8.25±1.45,.which was slightly lower than the mean of 8.58±1.11 in the control group,but the difference was not statistically significant(t=-1.589,P=0.114).Conclusion:.The educational effect of video demonstrations was almost identical to that of traditional teaching..In addition,.video classes reduced the training time and financial costs,.indicating that they deserve widespread application.
文摘While chemistry is popular for children of primary school age, its popularity drops dramatically in secondary schools. A potential solution to address this is to recognise the need for greater relevance-relevance to the curriculum, to the needs of society and, in the eyes of the students. The paper tries to puts forward a rethink of the philosophy for school chemistry education, based on the underlying belief that chemistry education is an integral part of education. The target is labelled scientific and technological literacy for all (STL). STL rejects the notion that chemistry is taught solely to acquire the abilities to be a scientist and supports the vision of a single curriculum goal, applicable to all students. Besides being a philosophy, STL is also a teaching approach. This approach is to initiate the teaching of chemistry topics, starting from a carefully chosen society perspective and to introduce the conceptual learning on a need-to-know basis. A limitation is the professional development of teachers. Suggestion for overcoming this involve workshop on materials development. A concern is expressed in cases where teachers make use of ready-made teaching materials (a common practice), without first gaining an understanding and an appreciation of the intended philosophy related to these materials.
基金Natural Science Foundation of China (41690141 and 41671058)a Project of Chinese Academy of Sciences (XDA20100305)CAS Pioneer Hundred Talents Program.
文摘Snow cover provides essential resources and services for human well-being and socioeconomic development in arid areas. With the change in snow cover resulting from climate change that causes concerns about its consequences, there is a pressing need to analyze and understand its impact on the benefits that people has been enjoying from snow cover. These can be derived from the variation in economic value of snow services, that are demanded to meet socioeconomic activities. Based on the average decline mass of snow cover from 1979 to 2016 in Irtysh River Basin, we use the approach by applying economic evaluation to estimate the annual value loss of snow services. Considering the decreasing trend of snow cover mass at rates of 10.2 Mt per year (p < 0.05) or 0.3% per year, the annual service loss in Irtysh River Basin is currently worth up to CN 196 million. Within it, the service loss of climate regulation contributes the most, or about CN 84.7 million. The loss of freshwater service contributes only about 19%, implying that there would be a significant underestimation of service loss if only water supply would be considered. This may cause biased decision-making when we are facing the challenges of declining services as a result of climate change, impacting on the balancing of socioeconomic development and environment conservation for the sustainability over a long term.
文摘In recent years,Kaifeng Meteorological Bureau and Kaifeng Municipal Meteorological Society seriously think how to strengthen the construction of science popularization base,and take below measures improving the influence of " national science popularization education base" and further increasing the propaganda of meteorological popular science knowledge. Firstly,launching periodical meteorological science popularization into campus,village and community,and holding meteorological science forum; secondly,cooperating with municipal science association and Science and Technology Bureau,and jointly issuing the related documents of carrying out the propaganda of meteorological science popularization;thirdly,co-constructing campus weather station and meteorological science popularization demonstration community; fourthly,setting up special meteorological science lecture and report meeting; fifthly,integrating meteorological science with studies of Chinese ancient civilization based on innovation. In the form of recreation and loved by the masses,the propaganda of meteorological popular science knowledge is done well,and people recognizing,understanding,grasping and applying meteorological science is improved,thereby reaching the target of decreasing the damages of meteorological disaster to social economy and human life and property.
文摘With the increase of science popularization, evaluation of science popularization has become an urgent demand. Considering science popularization bases as independent agents, a self-determined evaluation approach for science popularization using induced ordered weighted averaging (IOWA) operator and particle swarm optimization (PSO) is proposed in this paper.Firstly, six factors including science popularization personnel, space, fund,media, activity and influence are selected to construct an index system for science popularization evaluation. On this basis, the absolute dominance and relative dominance of evaluation indexes are used as induced components, and the prior order of the evaluation indexes is determined. Besides, the optimization model of index weighted vectors is established by IOWA operator, index weighted vectors are calculated by particle swarm optimization algorithm, and index weighted vectors and evaluation value vectors are obtain. Finally, the optimal evaluation vectors and evaluation results are given according to the Perron-Frobenius decision eigenvalve theorem .
文摘Supply chain management (SCM) is a strategy for global competition. The characteristics of SCM are integration, systematic and coordination. Using systematic, coordination thoughts and integration theory, a new model of enterprise integration based on supply chain management is put forward and an implementing paradigm for systematic methodology of supply chain management is developed.