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Ethnocultural heritage of the North-Eastern Caucasus as a factor of eco-tourism development
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作者 Zaburaeva Khava Sh. 《Journal of Mountain Science》 SCIE CSCD 2024年第8期2810-2824,共15页
The North-East Caucasus is a multi-ethnic mountain macroregion with a rich cultural heritage,insufficiently studied in the context of the ecotourism development.To fill this gap and identify promising directions of en... The North-East Caucasus is a multi-ethnic mountain macroregion with a rich cultural heritage,insufficiently studied in the context of the ecotourism development.To fill this gap and identify promising directions of environmentally safe forms of tourism,the author used in-depth review of modern literature to investigate the features of ecological tourism and the problems of preserving ethno-cultural heritage,and used historical and comparative-geographical methods to analyze the development of the tangible and intangible cultural heritage of the indigenous peoples of the North-Eastern Caucasus in different historical periods and to identify the geographical peculiarities of the distribution of historical and cultural monuments(tower buildings),pilgrimage sites and centers of traditional crafts and trades.As part of the planned expeditions,the author personally visited some historical monuments and handicraft centers for a deeper study of ethno-cultural heritage.The cartographic method made it possible to visualize the results.The results of the research show that the ethnocultural heritage of the North-East Caucasus is formed by material(historical and cultural monuments)and immaterial elements of culture(language,customs,traditions,ethnic identification)of those peoples,who live here.The ethnocultural heritage is considered as the most important factor in the development of the tourism industry.It is revealed that this region has a large potential for development in various areas of eco-tourism.The highest concentration of religious buildings focused in mountainous areas.Medieval tower structures were erected in mountainous and high-altitude areas.From ancient times to the present day there have been preserved various types of crafts and trades(pottery,metalworking,burka making,jewelry making,carpet weaving,gold embroidery,wood and stone carving,etc.),which can become objects of ecotourism.The ethnocultural heritage of the North-East Caucasus needs to be preserved and protected.To solve this problem,the author recommends to focus on a balanced combination of traditions and innovations in this industry,also considering the current state and development of the tourism industry in the country and in the world.The research highlights that the development of scientific approaches to plan and manage tourism development can contribute to the preservation of tangible and intangible cultural heritage of indigenous peoples.This is a complex and labour-intensive task,but its solution will have a multiplier effect in the social sphere,in economic development and in environmental security,which is in line with the principles and concept of sustainable development. 展开更多
关键词 Mountainous districts Sustainable development Prospects Stone Towers Folk crafts
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Development Strategy of Sichuan Sports Museum under the Background of Cultural and Tourism Integration
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作者 Junxian Feng 《Proceedings of Business and Economic Studies》 2024年第3期173-178,共6页
Through conducting a SWOT analysis of the Chengdu Sports Institute Museum,and utilizing the 4M management,5W display,and 4P marketing theoretical models,this study explores effective strategies suitable for Sichuan sp... Through conducting a SWOT analysis of the Chengdu Sports Institute Museum,and utilizing the 4M management,5W display,and 4P marketing theoretical models,this study explores effective strategies suitable for Sichuan sports museums in terms of functionality,display,and marketing. 展开更多
关键词 Integration of culture and tourism Sports museum development strategy
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Food Security Problems and Solutions in China Based on the Strategy of Sustainable Agricultural Development
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作者 Chongzhe JIAO 《Asian Agricultural Research》 2024年第2期16-17,30,共3页
China attaches great importance to food security.With the strong promotion of the government,Chinas grain output has achieved a great feat from"shortage"to"surplus in bumper years"and then to"... China attaches great importance to food security.With the strong promotion of the government,Chinas grain output has achieved a great feat from"shortage"to"surplus in bumper years"and then to"rising steadily",achieving a record"increase for the tenth consecutive year".From the current balance of food supply and demand in China,the food security situation can be guaranteed on the whole.However,if we analyze the food security in China from the perspective of agricultural sustainable development strategy,there are some difficulties,such as the reduction of cultivated land area,the decline of cultivated land quality,the fragility of agricultural ecological environment,and the transformation of residentsconsumption structure.This paper analyzes the difficulties faced by the development of food security in China under the strategy of sustainable agricultural development,and puts forward that to implement the strategy of sustainable agricultural development,it is necessary to realize the coordinated development of food security,science and technology,ecological environment,resources and society. 展开更多
关键词 Sustainable development Food security Ecological environment
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Thoughts on Pairing Assistance to Tibet for Promoting Agricultural High-quality Development in Southern Tibet from the Perspective of Agricultural Power
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作者 Zhiguo SUN Li GAO +3 位作者 Yuanpeng SUN Guangchao CAO Xinying ZHOU Xiaoqiang LI 《Asian Agricultural Research》 2024年第3期18-24,共7页
In the new era,there is an urgent need to further promote pairing assistance to Tibet,promote the simultaneous construction of a strong agriculture in Tibet and the China's Mainland,and compose a Chinese-style mod... In the new era,there is an urgent need to further promote pairing assistance to Tibet,promote the simultaneous construction of a strong agriculture in Tibet and the China's Mainland,and compose a Chinese-style modernization.Southern Tibet,located in the southeastern part of the Tibet Autonomous Region,includes Shannan City and Nyingchi City,is a region assisted by four provincial partners including Hubei Province.This paper introduces the agricultural environment in southern Tibet,studies its agricultural characteristics,and analyzes the main issues of its pairing assistance.Taking forging the strong consciousness of the Chinese national community as the main line,the paper explores strategies for promoting agricultural high-quality development in southern Tibet through pairing assistance to Tibet from the perspective of agricultural power,and proposes some strategies,such as inheriting agricultural cultural heritage,promoting the upgrading of modern seed industry,enhancing the characteristic advantages of highland barley(naked barley)and animal husbandry industries,and developing edible fungi and cold water fish industries. 展开更多
关键词 PAIRING ASSISTANCE to TIBET Southern TIBET Shannan CITY Nyingchi CITY AGRIcultural high-quality development AGRIcultural power
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Development of a Suitable,Cultural,and Life-Oriented Kindergarten Curriculum
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作者 Yuxuan Sun 《Journal of Contemporary Educational Research》 2024年第1期88-95,共8页
The technological revolution and the explosion of information have created a diverse world.More and more so-called advanced cultures are entering kindergartens,prompting us to think about how to correctly develop the ... The technological revolution and the explosion of information have created a diverse world.More and more so-called advanced cultures are entering kindergartens,prompting us to think about how to correctly develop the existing local cultures in the cultural context,while simultaneously accepting and absorbing the appropriate parts of foreign cultures.It is also necessary to maintain a balance between diversity and localization to prevent kindergartens from becoming a“colony”of foreign cultures.The development of suitable,cultural,and life-oriented kindergarten curricula from different perspectives is the focus of such a balance.Only in this way can kindergartens truly fulfill their educational functions and provide a vibrant and colorful environment for children. 展开更多
关键词 Kindergarten curriculum SUITABILITY CULTURE Life-oriented
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Dynamic analysis of agricultural green development efficiency in China: Spatiotemporal evolution and influencing factors 被引量:2
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作者 LIU Yiping LU Chengpeng CHEN Xingpeng 《Journal of Arid Land》 SCIE CSCD 2023年第2期127-144,共18页
Green development of agriculture is important for achieving coordinated and high-quality regional development for China. Using provincial data from 1990 to 2020, this work explored the dynamics of agricultural green d... Green development of agriculture is important for achieving coordinated and high-quality regional development for China. Using provincial data from 1990 to 2020, this work explored the dynamics of agricultural green development efficiency of 31 provinces in China, its spatiotemporal characteristics, and its driving factors using a super-efficiency slacks-based measure(Super-SBM), the Malmquist productivity index(MPI), spatial autocorrelation, and a geographic detector. Results showed that the overall agricultural green development efficiency showed a U-shaped trend, suggesting a low level of efficiency. Although a gradient difference was visible among eastern, central, and western regions, the efficiency gap narrowed each year. Technological progress and efficiency both promoted agricultural green development efficiency, especially technological progress. Agricultural green development efficiency had significant spatial aggregation characteristics, but Moran’s Ⅰ result showed a downward trend from 2015 to 2020, indicating a risk of spatial dispersion in the later stage. The provinces with high agricultural green development efficiency were mainly concentrated in the eastern region, while those with low efficiency were concentrated in the central and western regions. Agricultural green development efficiency was influenced by various factors, which showed differences according to time and region. The impact of the labor force’s education level and technological progress increased during the study period, and significantly facilitated agricultural green development efficiency in the eastern region, while the central and western regions were still affected by the scale level and environmental regulation, reflecting the advantages of the eastern region in terms of economy and technology. In the future, strengthening agricultural scientific and technological innovation and deepening interprovincial cooperation can help further improve the level of green agricultural development. In addition, local governments should formulate more precise local agricultural support policies based on macro-level policies and local conditions. 展开更多
关键词 regional development ECONOMY technology spatial evolution influencing factors super-efficiency slacks-based measure
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Socio-economic and energy-environmental impacts of technological change on China's agricultural development under the carbon neutrality strategy 被引量:1
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作者 Hong-Dian Jiang Rui Yu Xiang-Yan Qian 《Petroleum Science》 SCIE EI CAS CSCD 2023年第2期1289-1299,共11页
Promoting agricultural modernisation through technological change is an important strategy for China.China's carbon neutrality strategy is leading to systemic socio-economic changes that could exacerbate the uncer... Promoting agricultural modernisation through technological change is an important strategy for China.China's carbon neutrality strategy is leading to systemic socio-economic changes that could exacerbate the uncertainty of agricultural development.Therefore,applying a computable general equilibrium(CGE)model,this study characterises the agricultural sector in detail,introducing endogenous technological change proxied by research and development(R&D)to assess the impact of different technological change scenarios on agricultural development under the carbon neutrality target.The results show that allocating carbon revenue for R&D inputs can mitigate the significant negative impact of achieving carbon neutrality on knowledge capital and production in agricultural sectors.Overall,using carbon revenue only for R&D input in crop sectors has the optimal effect on increasing the agricultural sectors'knowledge capital,improving crop production and profit,reducing crop external dependence and promoting the synergistic reduction of carbon and pollutant emissions.However,this scenario has the largest negative impact on macro-economics and household welfare.In contrast,allocating carbon revenue to promote technological change in broader non-energy sectors or both crops and non-energy sectors can effectively mitigate negative socio-economic impacts,but the positive impact on agricultural development is minimal.These findings provide practical insights for the rational use of carbon revenue to expand agricultural R&D investment and ensure balanced agricultural and economic development under the carbon neutrality target. 展开更多
关键词 Endogenous technological change R&D investment Agriculture development Computable general equilibrium
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Development Strategy of Urban Cultural Scene to Promote the Upgrading of Regional Cultural Consumption in Shaanxi
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作者 WANG Mengdie 《Journal of Landscape Research》 2023年第3期71-74,共4页
Regional cultural patterns and characteristics play a positive role in economic and social development.By planning and constructing cultural amenities and creating cultural scenes,the spatial quality and quality of li... Regional cultural patterns and characteristics play a positive role in economic and social development.By planning and constructing cultural amenities and creating cultural scenes,the spatial quality and quality of life in a region can be enhanced,facilitating the expansion of cultural consumption.Shaanxi,with its rich historical and cultural resources,positions the capital city of Xi’an as a“world historical city”,boasting a vast number of cultural amenities represented by“cultural facilities”,“cultural activities”,“cultural experiences”,and“cultural services”.The development of urban cultural scene,with the aim of promoting the upgrading of regional cultural consumption in Shaanxi,requires comprehensive planning and a multifaceted approach,particularly in integrating provincial cultural scenes,clarifying the positioning of cultural scenes,innovating cultural scene experience projects,creating cultural scene intellectual property(IP),and empowering cultural scenes through the application of science and technology. 展开更多
关键词 cultural consumption Urban cultural scene Economic and social development development strategy
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Development of Red Cultural Resources in Yimeng Region under the Background of Cultural and Tourism Integration
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作者 WANG Hui PENG Xiao +1 位作者 LIU Xiaomei MA Shuai 《Journal of Landscape Research》 2023年第5期64-66,共3页
The red cultural resources in Yimeng region have a long history and are an indispensable part ofthe traditional culture of the Chinese nation. From the perspective of cultural and tourism integration, thispaper invest... The red cultural resources in Yimeng region have a long history and are an indispensable part ofthe traditional culture of the Chinese nation. From the perspective of cultural and tourism integration, thispaper investigates and evaluates the red cultural resources in Yimeng old revolutionary base area, analyzescombined with the development status of red tourism, and puts forward targeted suggestions on thedevelopment of Yimeng red cultural resources through the investigation and analysis of tourists’ feelingsabout red tourism in Yimeng region. 展开更多
关键词 cultural and tourist integration Red culture Yimeng region Inheritance and development
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Tourism Development Mode of Historical and Cultural Blocks from the Perspective of Urban Renewal Based on Online Review Data:A Case Study of Nanluoguxiang in Beijing
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作者 CHEN Liudan 《Journal of Landscape Research》 2023年第3期42-46,50,共6页
Under the background of urban renewal, this paper re-explores the tourism development modeof Nanluoguxiang historical and cultural block based on online review data, and puts forward correspondingdevelopment strategie... Under the background of urban renewal, this paper re-explores the tourism development modeof Nanluoguxiang historical and cultural block based on online review data, and puts forward correspondingdevelopment strategies. As a cultural label of a city, historical and cultural blocks should be updated first inorder to achieve sustainable development. By using multi-source big data review and qualitative researchmethods, the perception evaluation of tourists in Nanluoguxiang is obtained, and the shortcomings ofcurrent tourism development mode are analyzed. Furthermore, corresponding improvement strategies andsuggestions are put forward, in order to provide some effective ideas for the sustainable development ofhistorical and cultural blocks in the future. 展开更多
关键词 Online review data Tourism development mode Historical and cultural block NANLUOGUXIANG
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GAMYB transcription factor LoMYB65 from lily plays a vital role in pollen development 被引量:1
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作者 Xinyue Liu Ling He +1 位作者 Ze Wu Nianjun Teng 《Horticultural Plant Journal》 SCIE CAS CSCD 2024年第1期223-238,共16页
Lily(Lilium spp.)is an important horticultural crop,but its use is limited due to serious pollen contamination problems.There are many studies on pollen development in model plants,but few on flower crops such as lili... Lily(Lilium spp.)is an important horticultural crop,but its use is limited due to serious pollen contamination problems.There are many studies on pollen development in model plants,but few on flower crops such as lilies.Gibberellin(GA)is a large class of hormones and plays an important role in plant vegetative growth and reproductive development.GAMYB is a group of the R2R3-MYB family upregulated by gibberellin,and plays an important role in anther development.Here,we isolated a novel GAMYB,named LoMYB65,from lily,which was closely related to the AtMYB65 and AtMYB33 in Arabidopsis.Fluorescence quantitative PCR results showed that LoMYB65 was mainly expressed in lily anthers.LoMYB65 could be activated by 288μmol·L^(-1)GA3treatment and the LoMYB65 protein was located in the nucleus and cytoplasm,and had transactivation in yeast and tobacco leaf cells.The conserved motif within 226 amino acids of the C-terminal of LoMYB65 contributed to its transactivation.Overexpression of LoMYB65 caused dwarf phenotype,unnormal tapetum development,less seeds of siliques in transgenic Arabidopsis plants,the transgenic plants showed partly male sterile.Simultaneously,silencing of LoMYB65 with VIGS(Virus Induced Gene Silencing)in lily anthers caused unnormal pollen development and reduced the pollen amount.Overexpression of LoMYB65 in Arabidopsis and silencing of LoMYB65 in lily resulted in decreased pollen counts,so we speculate that LoMYB65 may be dose-dependent.Overall,these findings suggest that LoMYB65 may play an important role in anther development and pollen formation in lily.LoMYB65 may provide a useful candidate gene for pollenless breeding of lily. 展开更多
关键词 LILY Anther development Pollen pollution GAMYB VIGS
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The Importance of Agricultural Development Projects: A Focus on Sustenance and Employment Creation in Kenya, Malawi, Namibia, Rwanda, and Uganda
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作者 Benonia Mwahafa Rafael 《Journal of Agricultural Chemistry and Environment》 CAS 2023年第2期152-170,共19页
The paper on the importance of Agricultural Development Projects focuses on different projects implemented in Kenya, Malawi, Namibia, Rwanda, and Uganda. The paper presents the significance of agriculture in these 5 A... The paper on the importance of Agricultural Development Projects focuses on different projects implemented in Kenya, Malawi, Namibia, Rwanda, and Uganda. The paper presents the significance of agriculture in these 5 African economies in its ability to provide job opportunities and sustenance. A large portion of the African population in their different countries resides in rural areas and is fully dependent on agriculture for food and income. Subsequently, the development of many developing economies relies heavily on agriculture, the sector is the highest employer in the region with 60 percent of the total labor force being employed in agriculture and agriculture-related sectors such as manufacturing. The success of the sector means that people will have sufficient food, jobs will be created, and standards of living will be improved. The different projects implemented by local governments in the 5 countries and by the development partners have attained plausible results in providing job opportunities, increasing yield, providing food security, and creating a market for small-holder farmers. Despite these remarkable achievements, the agriculture sector in Africa as a whole is faced with many challenges that hinder its success, such as lack of funding, lack of infrastructure, limited land for farming, and climate change. To overcome these challenges and enable the sector to transform, bold policies need to be implemented. This study recommends that African countries create favorable business environments to attract investment, encourage youth participation in agricultural activities, and employ modern farming practices to increase agricultural productivity. 展开更多
关键词 Agriculture development EMPLOYMENT HUNGER Food Security INVESTMENT AFRICA
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Problem of the Profitability of Irrigated Agriculture in the Sahel Environment: Case of Producers of the Konni Hydro-Agricultural Development
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作者 Saidou Abdoulkarimou Illou Mahamadou 《Journal of Agricultural Chemistry and Environment》 CAS 2023年第2期206-222,共17页
In Niger, a poor and arid country in West Africa, irrigated agriculture is undoubtedly the means with the greatest chance of ensuring food and nutritional security, increasing incomes and therefore reducing poverty, e... In Niger, a poor and arid country in West Africa, irrigated agriculture is undoubtedly the means with the greatest chance of ensuring food and nutritional security, increasing incomes and therefore reducing poverty, especially in rural areas. This research aims to analyze the profitability of irrigated agriculture at the level of the hydro-agricultural development of Konni. The methodological approach adopted is based on the method of “Rapid Participatory Diagnosis and Planning of actions to improve the performance of irrigated perimeters (DPRP)”. The documentary research made it possible to capitalize on the information available on the question. The collection of primary data in the field was carried out using questionnaires and interview guides submitted to actors directly or indirectly involved in the management of Konni’s AHA, taken individually or in focus group discussions. The data collected was processed with SPSS software to be analyzed and graphically illustrated with the Excel spreadsheet. The performance analysis made it possible to identify yields and constraints to the development of irrigated agriculture. The results show that on the Konni perimeter, there is a general trend towards a reduction in areas both in SS and in SH, with higher development rates in SH (80% to 90%), whereas they are very low in SS (8% to 25%). The main crops favored by Konni producers are onions, tomatoes, cabbage, corn and sorghum. Onion and tomato crops are more important sources of income than dune crops. In this context, the main challenges to be met for a better profitability of irrigated agriculture concern the socio-economic context of production, insufficient financing of infrastructures and their maintenance, small areas often below the break-even point, environmental degradation. 展开更多
关键词 Konni (Niger) Hydro-Agricultural development Yield
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Natural Disaster Risk Monitoring for Immovable Cultural Relics Based on Digital Twin 被引量:1
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作者 LI Bolun DONG Youqiang +2 位作者 QIAO Yunfei HOU Miaole WEN Caihuan 《Journal of Geodesy and Geoinformation Science》 CSCD 2024年第1期90-104,共15页
Natural disaster risk monitoring is an important task for disaster prevention and reduction.In the case of immovable cultural relics,however,the feedback mechanism,risk factors,monitoring logic,and monitoring indicato... Natural disaster risk monitoring is an important task for disaster prevention and reduction.In the case of immovable cultural relics,however,the feedback mechanism,risk factors,monitoring logic,and monitoring indicators of natural disaster risk monitoring are complex.How to achieve intelligent perception and monitoring of natural disaster risk for immovable cultural relics has always been a focus and a challenge for researchers.Based on the analysis of the concepts and issues related to the natural disaster risk of immovable cultural relics,this paper proposes a framework for natural disaster risk monitoring for immovable cultural relics based on the digital twin.This framework focuses on risk monitoring,including the physical entities of natural disaster risk for immovable cultural relics,monitoring indicators,and virtual entity construction.A platform for monitoring the natural disaster risk of immovable cultural relics is proposed.Using the Puzhou Ancient City Site as a test bed,the proposed concept can be used for monitoring the natural disaster risk of immovable cultural relics at different scales. 展开更多
关键词 immovable cultural relics natural disaster risk digital twin risk monitoring
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Influencing Factors and Improvement Suggestions for Agricultural Green Development Performance:Empirical Insights from China
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作者 LI Erling ZHANG Mengzhen +1 位作者 LI Ruolan DENG Qingqing 《Chinese Geographical Science》 SCIE CSCD 2023年第5期917-933,共17页
Agricultural green development is an essential direction for global sustainable agriculture.The academic literature,however,needs to place greater emphasis on studying the factors influencing agricultural green develo... Agricultural green development is an essential direction for global sustainable agriculture.The academic literature,however,needs to place greater emphasis on studying the factors influencing agricultural green development performance and how such performance can be improved.A theoretical framework for agricultural green development performance was constructed in this paper using the Super-SBM model,which considers undesirable outputs,to measure the agricultural green development performance of 330 cities at or above the prefecture level in China(excluding Tibet Autonomous Region,Hong Kong,Macao and Taiwan of China)from 2007 to2018.Furthermore,the influencing mechanism of agricultural green development performance was then analyzed using a spatial econometric model.The results show that:1)from 2007 to 2018,China’s agricultural green development performance experienced three stages of evolution:‘rise,decline and rise’.2)The regions with high performance agricultural green development are mainly distributed in eastern China,northeastern China,and southern Qinghai Province.3)The agricultural economic level,industrialization process,and labor quality play significant roles in promoting local agricultural green development performance,while such performance is obviously inhibited by the openness level and the government’s environmental regulations.Local agricultural green development performance is significant inhibited by the agricultural economic level and accelerated industrialization process in neighboring cities,while significantly promoted by the agricultural industrial structure in neighboring cities.Some suggestions for improving agricultural green development performance are proposed based on these research results,which can provide scientific references for promoting sustainable agriculture. 展开更多
关键词 agricultural green development performance influencing factors improvement suggestions China
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Automatic Extraction Method of 3D Feature Guidelines for Complex Cultural Relic Surfaces Based on Point Cloud 被引量:1
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作者 GENG Yuxin ZHONG Ruofei +1 位作者 HUANG Yuqin SUN Haili 《Journal of Geodesy and Geoinformation Science》 CSCD 2024年第1期16-41,共26页
Cultural relics line graphic serves as a crucial form of traditional artifact information documentation,which is a simple and intuitive product with low cost of displaying compared with 3D models.Dimensionality reduct... Cultural relics line graphic serves as a crucial form of traditional artifact information documentation,which is a simple and intuitive product with low cost of displaying compared with 3D models.Dimensionality reduction is undoubtedly necessary for line drawings.However,most existing methods for artifact drawing rely on the principles of orthographic projection that always cannot avoid angle occlusion and data overlapping while the surface of cultural relics is complex.Therefore,conformal mapping was introduced as a dimensionality reduction way to compensate for the limitation of orthographic projection.Based on the given criteria for assessing surface complexity,this paper proposed a three-dimensional feature guideline extraction method for complex cultural relic surfaces.A 2D and 3D combined factor that measured the importance of points on describing surface features,vertex weight,was designed.Then the selection threshold for feature guideline extraction was determined based on the differences between vertex weight and shape index distributions.The feasibility and stability were verified through experiments conducted on real cultural relic surface data.Results demonstrated the ability of the method to address the challenges associated with the automatic generation of line drawings for complex surfaces.The extraction method and the obtained results will be useful for line graphic drawing,displaying and propaganda of cultural relics. 展开更多
关键词 point cloud conformal parameterization vertex weight surface mesh cultural relics feature extraction
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Urban Cultural Excavation and Reconstruction in the Perspective of Cultural Interaction:An Example of Modern Counter-Industrial Development on the Suzhou Riverbank
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作者 LI Yifan LI Houcong JIA Ying 《Sino-US English Teaching》 2023年第5期171-175,共5页
Urban culture,as the core force of urban development,has been explored more deeply in the process of modern urban transformation and construction.However,cities have their own unique memories,and cultural continuity a... Urban culture,as the core force of urban development,has been explored more deeply in the process of modern urban transformation and construction.However,cities have their own unique memories,and cultural continuity and heritage require further innovation.The Suzhou River was the center of Shanghai’s initial development and carries an important cultural heritage.In 1996,Shanghai launched the comprehensive environmental improvement of the Suzhou River,which has achieved the reverse industrialization of the Suzhou River through the fine management of the city,and has made a good achievement of urban management and a new culture of the Suzhou River.This paper takes,Shanghai,a maritime city,as the background,takes the management of Suzhou River as the entry point to explore the new path of building urban culture in the new era,and studies the cultural significance contained in the fine management of modern cities. 展开更多
关键词 urban culture cultural reinvention modern urban refinement governance
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Spatiotemporal Differences and Classification Regulation of Urbanization Impact on Agricultural Development in Shrinking Areas:A Case Study of 15 Shrinking Cities in Three Provinces of Northeast China
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作者 CHEN Xiaohong LIU Haihan +4 位作者 AN Yongle DAI Yue PAN Wei WANG Ying TANG We 《Chinese Geographical Science》 SCIE CSCD 2023年第6期1053-1067,共15页
Studying the impact of urbanization on agricultural development in shrinking areas is important for maintaining food security and promoted agricultural development in China.Based on the measurement results of the shri... Studying the impact of urbanization on agricultural development in shrinking areas is important for maintaining food security and promoted agricultural development in China.Based on the measurement results of the shrinking cities in the three provinces of Northeast China,this paper selects 15 shrinking cities as the research object,and constructs a multi-dimensional index system to explore the impact of the urbanization level of the shrinking areas on the agricultural development in the region since 2007–2019,analyzes the influencing factors and their differences by using the geographically-weighted regression model and Geodetector,and proposes a targeted regulation strategy.The results show that:1)overall,there is a negative correlation between the urbanization level and the agricultural development level in the contracted areas of the three northeastern provinces.The urbanization level in these areas has a certain negative impact on the overall level of agricultural development;2)regarding the time dimension,the impact of urbanization level on the agricultural development level in the contracted areas of the three northeastern provinces gradually increases over time;3)regarding the spatial pattern,the overall impact of shrinking urbanization levels in the three provinces of Northeast China on the agricultural development shows a significant distribution pattern of high in the east and low in the west;4)the total population and natural population growth rate at the end of the year were the main factors influencing a certain level of urbanization on agricultural development in the shrinking cities while population density and the urban fixed asset investment rate were the secondary factors;and 5)the main reasons why the level of agricultural development in different cities was affected by the level of urbanization were different.However,they can be categorized into areas of population loss and spatial construction,which can be further divided into area of population loss in the northeast,areas of negative population growth in the west,and areas of urban spatial change in the south.According to the causes of the impact,this paper adopted targeted regulation strategies and formulated relevant policies and solutions that cater to local conditions. 展开更多
关键词 URBANIZATION agricultural development classification and regulation shrinking cities three provinces of Northeast China
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BMPRⅡ^(+)neural precursor cells isolated and characterized from organotypic neurospheres:an in vitro model of human fetal spinal cord development 被引量:1
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作者 Michael W.Weible II Michael D.Lovelace +2 位作者 Hamish D.Mundell Tsz Wai Rosita Pang Tailoi Chan-Ling 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第2期447-457,共11页
Roof plate secretion of bone morphogenetic proteins(BMPs)directs the cellular fate of sensory neurons during spinal cord development,including the formation of the ascending sensory columns,though their biology is not... Roof plate secretion of bone morphogenetic proteins(BMPs)directs the cellular fate of sensory neurons during spinal cord development,including the formation of the ascending sensory columns,though their biology is not well understood.Type-ⅡBMP receptor(BMPRⅡ),the cognate receptor,is expressed by neural precursor cells during embryogenesis;however,an in vitro method of enriching BMPRⅡ^(+)human neural precursor cells(hNPCs)from the fetal spinal cord is absent.Immunofluorescence was undertaken on intact second-trimester human fetal spinal cord using antibodies to BMPRⅡand leukemia inhibitory factor(LIF).Regions of highest BMPRⅡ^(+)immunofluorescence localized to sensory columns.Parenchymal and meningeal-associated BMPRⅡ^(+)vascular cells were identified in both intact fetal spinal cord and cortex by co-positivity with vascular lineage markers,CD34/CD39.LIF immunostaining identified a population of somas concentrated in dorsal and ventral horn interneurons,mirroring the expression of LIF receptor/CD118.A combination of LIF supplementation and high-density culture maintained culture growth beyond 10 passages,while synergistically increasing the proportion of neurospheres with a stratified,cytoarchitecture.These neurospheres were characterized by BMPRⅡ^(+)/MAP2ab^(+/–)/βⅢ-tubulin^(+)/nestin^(–)/vimentin^(–)/GFAP^(–)/NeuN^(–)surface hNPCs surrounding a heterogeneous core ofβⅢ-tubulin^(+)/nestin^(+)/vimentin^(+)/GFAP^(+)/MAP2ab^(–)/NeuN^(–)multipotent precursors.Dissociated cultures from tripotential neurospheres contained neuronal(βⅢ-tubulin^(+)),astrocytic(GFAP+),and oligodendrocytic(O4+)lineage cells.Fluorescence-activated cell sorting-sorted BMPRⅡ^(+)hNPCs were MAP2ab^(+/–)/βⅢ-tubulin^(+)/GFAP^(–)/O4^(–)in culture.This is the first isolation of BMPRⅡ^(+)hNPCs identified and characterized in human fetal spinal cords.Our data show that LIF combines synergistically with high-density reaggregate cultures to support the organotypic reorganization of neurospheres,characterized by surface BMPRⅡ^(+)hNPCs.Our study has provided a new methodology for an in vitro model capable of amplifying human fetal spinal cord cell numbers for>10 passages.Investigations of the role BMPRⅡplays in spinal cord development have primarily relied upon mouse and rat models,with interpolations to human development being derived through inference.Because of significant species differences between murine biology and human,including anatomical dissimilarities in central nervous system(CNS)structure,the findings made in murine models cannot be presumed to apply to human spinal cord development.For these reasons,our human in vitro model offers a novel tool to better understand neurodevelopmental pathways,including BMP signaling,as well as spinal cord injury research and testing drug therapies. 展开更多
关键词 BMPRⅡ bone morphogenetic protein histotypic human spinal cord development leukemia inhibitory factor NEUROSPHERE ORGANOTYPIC reaggregate sensory columns
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Research on the Development Model of University Archives Cultural Products Based on Deep Learning
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作者 Qiong Luo 《Computer Systems Science & Engineering》 SCIE EI 2023年第9期3141-3158,共18页
The products of an archival culture in colleges and universities are the final result of the development of archival cultural resources,and the development of archival cultural effects in colleges and universities sho... The products of an archival culture in colleges and universities are the final result of the development of archival cultural resources,and the development of archival cultural effects in colleges and universities should be an important part of improving the artistic level of libraries.The existing RippleNet model doesn’t consider the influence of key nodes on recommendation results,and the recommendation accuracy is not high.Therefore,based on the RippleNet model,this paper introduces the influence of complex network nodes into the model and puts forward the Cn RippleNet model.The performance of the model is verified by experiments,which provide a theoretical basis for the promotion and recommendation of its cultural products of universarchives,solve the problem that RippleNet doesn’t consider the influence of key nodes on recommendation results,and improve the recommendation accuracy.This paper also combs the development course of archival cultural products in detail.Finally,based on the Cn-RippleNet model,the cultural effect of university archives is recommended and popularized. 展开更多
关键词 Cn-RippleNet model cultural artifact deep learning hierarchical optimization resource node optimization university archives
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