期刊文献+
共找到12,414篇文章
< 1 2 250 >
每页显示 20 50 100
A comprehensive look at the psychoneuroimmunoendocrinology of spinal cord injury and its progression: mechanisms and clinical opportunities 被引量:1
1
作者 Miguel A.Ortega Oscar Fraile-Martinez +9 位作者 Cielo García-Montero Sergio Haro Miguel Ángel Álvarez-Mon Diego De Leon-Oliva Ana M.Gomez-Lahoz Jorge Monserrat Mar Atienza-Pérez David Díaz Elisa Lopez-Dolado Melchor Álvarez-Mon 《Military Medical Research》 SCIE CAS CSCD 2024年第2期228-267,共40页
Spinal cord injury(SCI)is a devastating and disabling medical condition generally caused by a traumatic event(primary injury).This initial trauma is accompanied by a set of biological mechanisms directed to ameliorate... Spinal cord injury(SCI)is a devastating and disabling medical condition generally caused by a traumatic event(primary injury).This initial trauma is accompanied by a set of biological mechanisms directed to ameliorate neural damage but also exacerbate initial damage(secondary injury).The alterations that occur in the spinal cord have not only local but also systemic consequences and virtually all organs and tissues of the body incur important changes after SCI,explaining the progression and detrimental consequences related to this condition.Psychoneuroimmunoendocrinology(PNIE)is a growing area of research aiming to integrate and explore the interactions among the different systems that compose the human organism,considering the mind and the body as a whole.The initial traumatic event and the consequent neurological disruption trigger immune,endocrine,and multisystem dysfunction,which in turn affect the patient's psyche and well-being.In the present review,we will explore the most important local and systemic consequences of SCI from a PNIE perspective,defining the changes occurring in each system and how all these mechanisms are interconnected.Finally,potential clinical approaches derived from this knowledge will also be collectively presented with the aim to develop integrative therapies to maximize the clinical management of these patients. 展开更多
关键词 Spinal cord injury(SCI) Psychoneuroimmunoendocrinology(PNIE) Secondary injury Immunoinflammatory dysfunction Gut microbiota Translational opportunities
下载PDF
Realm of hepatitis E:Challenges and opportunities
2
作者 Jia-Rui Li Ze Xiang +3 位作者 Shu-Hui Li Chen-Xi Li Hong Yan Jian Wu 《World Journal of Experimental Medicine》 2024年第2期1-4,共4页
Hepatitis E virus(HEV),responsible for widespread viral hepatitis,infects approximately 2.3 billion individuals globally,with a significant mortality burden in Asia.The virus,primarily transmitted through contaminated... Hepatitis E virus(HEV),responsible for widespread viral hepatitis,infects approximately 2.3 billion individuals globally,with a significant mortality burden in Asia.The virus,primarily transmitted through contaminated water and undercooked meat,is often underdiagnosed,particularly in immunocompromised patients.Current HEV treatments,while effective,are limited by adverse effects,necessitating research into safer alternatives.Moreover,HEV’s extrahepatic manifestations,impacting the nervous and renal systems,remain poorly understood.This study underscores the imperative for enhanced HEV research,improved diagnostic methods,and more effective treatments,coupled with increased public health awareness and preventive strategies. 展开更多
关键词 Hepatitis E TREATMENT Extrahepatic manifestations CHALLENGES opportunITIES
下载PDF
Opportunities, Challenges, and Countermeasures of China Myanmar Economic and Trade Cooperation under the Background of RCEP
3
作者 Chit Min Htut 《Open Journal of Applied Sciences》 2024年第4期991-1007,共17页
China and Myanmar are geographically adjacent and have close economic and trade cooperation. China has been Myanmar’s largest trading partner and largest source of investment for many consecutive years. With the offi... China and Myanmar are geographically adjacent and have close economic and trade cooperation. China has been Myanmar’s largest trading partner and largest source of investment for many consecutive years. With the official entry into force of RCEP (Regional Comprehensive Economic Partnership) for Myanmar on May 1, 2022, the reduction of trade tariffs on goods and flexible rules of origin between China and Myanmar will undoubtedly bring more practical results to China Myanmar economic and trade cooperation. However, the implementation of RCEP in Myanmar may face a series of challenges such as poor business environment, weak human resource management, and outdated infrastructure construction. Finally, the article provides countermeasures for China Myanmar economic and trade cooperation from three aspects: optimizing the business environment to attract Chinese investment, increasing investment in education and training to improve labor quality, strengthening infrastructure construction to enhance economic support. 展开更多
关键词 RCEP Myanmar opportunities CHALLENGES COUNTERMEASURES
下载PDF
The Opportunities,Dilemmas,and Paths for the Development of Adult Higher Education in the New Era
4
作者 Yin Huang 《Journal of Contemporary Educational Research》 2024年第4期264-269,共6页
This paper comprehensively analyzes the development opportunities and realistic dilemmas faced by adult higher education in China in the new era,and puts forward corresponding strategies as solutions.With the construc... This paper comprehensively analyzes the development opportunities and realistic dilemmas faced by adult higher education in China in the new era,and puts forward corresponding strategies as solutions.With the construction of a learning society,the development of digital technology,and the popularization of the concept of lifelong learning,adult higher education has unprecedented development opportunities.At the same time,these forms of education are facing a series of dilemmas due to challenges such as unsound guarantee mechanisms and traditional enrollment competition.Through the establishment of perfect legal and policy guarantees,transformation of school running mode,meeting the diversified needs of learners,and other multi-faceted measures,the development of adult higher education can be effectively promoted to meet the needs of individual and social development. 展开更多
关键词 Adult higher education opportunITIES DILEMMAS PATHS
下载PDF
Research on the Impact and Opportunities of the Digital Economy Promoting the Development of Real Economy
5
作者 Meichen Jin 《Proceedings of Business and Economic Studies》 2024年第2期126-131,共6页
The digital economy has infused vitality into the transformation and development of the real economy,urging enterprises to break through core technological barriers,address bottleneck issues,and improve their core com... The digital economy has infused vitality into the transformation and development of the real economy,urging enterprises to break through core technological barriers,address bottleneck issues,and improve their core competitiveness.It fosters the comprehensive digital transformation of agriculture,manufacturing,and service sectors,improving the dynamism of the real economy and fostering more consumption hotspots.Efforts are underway to enhance industrial supply chains and innovation chains,optimize regional resource allocation,and promote a virtuous cycle within the real economy.Initiatives are being undertaken to standardize the development of digital economic platforms,promote the high-quality development of regional economies,and leverage the advantages of the socialist market economy with Chinese characteristics. 展开更多
关键词 Digital economy Real economy INFLUENCE Development opportunity Development path
下载PDF
Opportunities and Challenges of College Mental Health Education from the Perspective of Big Data
6
作者 Xiaojian Cai 《Journal of Contemporary Educational Research》 2024年第4期193-198,共6页
This paper explores the opportunities and challenges of college mental health education from the perspective of big data.Firstly,through literature review,the importance of mental health education and the current issu... This paper explores the opportunities and challenges of college mental health education from the perspective of big data.Firstly,through literature review,the importance of mental health education and the current issues are elucidated.Then,from the perspective of big data,the potential opportunities of big data in college mental health education are analyzed,including data-driven personalized education,real-time monitoring and warning systems,and interdisciplinary research and collaboration.At the same time,the challenges faced by college mental health education under the perspective of big data are also pointed out,such as data privacy and security issues,insufficient data analysis and interpretation capabilities,and inadequate technical facilities and talent support.Lastly,the research content of this paper is summarized,and directions and suggestions for future research are proposed. 展开更多
关键词 Big data perspective College mental health education opportunITIES CHALLENGES Personalized education Real-time monitoring Interdisciplinary research
下载PDF
略论游憩机会谱(Recreation Opportunity Spectrum,ROS)框架体系 被引量:35
7
作者 蔡君 《中国园林》 2006年第7期73-77,共5页
游憩机会谱为规划和管理游憩资源提供了框架。它被证明是一种有效的游憩机会清单分类方法,能够帮助确认管理决策的后果以及作为一种手段向公众通告有关游憩资源环境的信息及其预期的体验。对ROS的概念进行了阐述,并介绍了确定谱系分级... 游憩机会谱为规划和管理游憩资源提供了框架。它被证明是一种有效的游憩机会清单分类方法,能够帮助确认管理决策的后果以及作为一种手段向公众通告有关游憩资源环境的信息及其预期的体验。对ROS的概念进行了阐述,并介绍了确定谱系分级因子的标准以及主要的应用目的。最后对游憩机会谱在中国的应用前景提出了两点展望。 展开更多
关键词 风景园林 游憩机会谱 综述 游憩管理 游憩机会环境
下载PDF
Agricultural Land Use Responses to the Rising Labor Opportunity Cost in Sui County,China 被引量:4
8
作者 Chen Yuqi 《Chinese Journal of Population,Resources and Environment》 2010年第4期10-18,共9页
Rising labor opportunity cost is one of the most important characteristics of farmers' economic environment in present China,and brings great agricultural land use changes correspondingly.Based on the stratified r... Rising labor opportunity cost is one of the most important characteristics of farmers' economic environment in present China,and brings great agricultural land use changes correspondingly.Based on the stratified random sample of rural households in Sui County,this paper estimates the opportunity cost of farm labors,and then analyzes its effect on farmers' agricultural land use decisions.The findings show that the households with higher labor opportunity cost are more likely to reduce labor intensity and increase labor-saving input in their land use decisions.From the descriptive analysis,we also find these households always prefer grain crop planting,reduce yield-raising input or even rent out their cultivated land.As labor and yield-raising input are two essential positive factors for grain production,continuous declining of labor input and yield-raising input caused by rising labor opportunity cost may influence the grain yield per unit area in the future. 展开更多
关键词 labor opportunity cost labor intensity capital intensity yield-raising input labor-saving input
下载PDF
Agricultural opportunity costs assessment based on planting suitability:a case study in a mountain county in southwest China 被引量:3
9
作者 liu ju fu bin +2 位作者 wang yu-kuan lu ya-feng xu pei 《Journal of Mountain Science》 SCIE CSCD 2017年第12期2568-2580,共13页
Payment for ecosystem services(PES) has become an increasingly popular means of ecosystem conservation. Opportunity cost is an important factor to increase the investment efficiency of PES projects.However, the distri... Payment for ecosystem services(PES) has become an increasingly popular means of ecosystem conservation. Opportunity cost is an important factor to increase the investment efficiency of PES projects.However, the distribution of opportunity cost is usually unclear in mountainous regions due to the obvious environment changes. In this study, we developed a framework to assess the distribution of agricultural opportunity costs in mountainous regions and applied this method to Baoxing County, a typical mountainous county in Sichuan Province of southwest China. Planting suitability of 17 crops was assessed based on agricultural statistics and natural conditions data within a GIS environment.Agricultural opportunity cost was quantified with a weighted summation of farmers' willingness to cultivate and each crop's opportunity cost. Finally,specific agricultural opportunity cost was obtained according to the spatial areas of the protection programs and land use status. The results showed that agricultural opportunity costs of PES in Baoxing County were estimated to be more than $30 million,with a mean of 400.85 $/ha. Agricultural opportunity costs in mountainous regions displayed some obvious spatial variation and areas with lower agricultural opportunity costs could be selected as priority areas for PES. Our findings revealed that the planting suitability evaluation can make agricultural opportunity costs mapping more reasonable. It will be helpful for the PES programs implementation in mountainous regions. 展开更多
关键词 opportunity cost Planting suitability Willingness to accept Ecosystem service Spatial variation Baoxing County
下载PDF
Risk-opportunity analyses and production peak forecasting on world conventional oil and gas perspectives 被引量:1
10
作者 Zhang Jian Sun Zandong +2 位作者 Zhang Yiwei Sun Youshun Nail Toksoz 《Petroleum Science》 SCIE CAS CSCD 2010年第1期136-146,共11页
To investigate the situation of conventional oil and gas, this paper examines the global oil and gas discoveries, proved reserves, production, consumption and price. All the influencing factors can be subjected to ris... To investigate the situation of conventional oil and gas, this paper examines the global oil and gas discoveries, proved reserves, production, consumption and price. All the influencing factors can be subjected to risk and opportunity analyses, so in the paper, we build upon a risk-opportunity analysis framework, which is a new train of thought. To forecast the peak time of oil and gas production, we used the methods of multi-Hubbert model forecasting and data forecasting. Our results showed that the world oil production will reach a peak between 2010 and 2015 and the gas production will reach a peak around 2030 Oil peak is coming and gas peak is on the way. The main purpose of forecasting oil and gas production peak is give people enough time for preparing mitigation and adaptation plans. This means taking decisive action well before the problem is obvious. 展开更多
关键词 PRODUCTION RESERVE RISK opportunity forecasting
下载PDF
Analysis of Factors Influencing Farmers' Identification of Entrepreneurial Opportunity 被引量:2
11
作者 Jing GAO Fang YANG 《Asian Agricultural Research》 2013年第6期112-117,121,共7页
Based on the survey data of entrepreneurship concerning farmers in China,this article uses the multivariate adjustment regression analysis method,to analyze the factors influencing farmers' identification of entre... Based on the survey data of entrepreneurship concerning farmers in China,this article uses the multivariate adjustment regression analysis method,to analyze the factors influencing farmers' identification of entrepreneurial opportunity and the mechanism. The results show that demographic characteristics are still an important factor influencing farmers' identification of entrepreneurial opportunity,but the extent of its influence is weaker than entrepreneurs' trait. The new trait theory is verified in farmers' entrepreneurship opportunity behavior; entrepreneurship environment is becoming an important factor influencing entrepreneurial opportunity identification,whose regulation effect on entrepreneurs' social network and previous experience is stronger than the regulation effect on entrepreneurs' psychological trait. 展开更多
关键词 Farmers’ ENTREPRENEURSHIP opportunity BEHAVIOR Inf
下载PDF
Opportunity Costs of Emissions Caused by Land-Use Changes 被引量:2
12
作者 S. Suyanto Andree Ekadinata +1 位作者 Muhammad Sofiyuddin Arif Rahmanullah 《Open Journal of Forestry》 2014年第1期85-90,共6页
Amid the euphoria of Reducing Emissions from Deforestation and Forest Degradation (REDD) and REDD+ discussions, the expectations of large financial gains raise the interest of all. A country, however, will only enjoy ... Amid the euphoria of Reducing Emissions from Deforestation and Forest Degradation (REDD) and REDD+ discussions, the expectations of large financial gains raise the interest of all. A country, however, will only enjoy REDD benefits if the cost of REDD is lower than the benefit. The opportunity cost analysis is an effective tool for assessing the feasibility of REDD+ since the largest portion of costs associated with REDD+ and can help to identify fair compensation for those who change their land use. The opportunity cost analysis has been exercised in Tanjung Jabung Barat (Tanjabar) district-Indonesia to examine the economic-feasibility of carbon emission reduction under different type carbon price scenarios. This study reveals a sharp decline of land-use systems with high carbon-stock and low profitability is obvious. On mineral soil, low carbon-stock and high profitability (mostly oil palm) has increased rapidly, especially in the period 2000-2009. It has become the dominant land-use system. The low-to-medium carbon stock and medium profitability land-use category increased from 1990 to 2005 but declined from 2005 to 2009. The low carbon-stock and low profitability category was constant and the proportion of the area was below 15%. The ex-ante analysis in predicting the potential for future emissions reduction in Tanjabar through REDD+ approaches shows that the cumulative emission of Tanjabar in 2020 is estimated at 61.91 Mg CO2-eq/Ha.Year, while the reduced emission by excluding all land use conversion below $5 threshold is estimated at 51.71 Mg CO2-eq/Ha.Year. This means that there is a potential for 16% emission reduction using $5/ton CO2-eq incentive. Another important finding in this study is that if the price of carbon increases by double to $10, the amount of reduced emission does not change much. This can use as a basis for determining the right amount of incentive for trade-off between economic profitability and climate change mitigation effort in Tanjabar using REDD+ scheme both at seller and buyer perspectives. 展开更多
关键词 opportunity COST LAND Use Change Carbon Emission REDDS
下载PDF
Astroglial heterogeneity:merely a neurobiological question? Or an opportunity for neuroprotection and regeneration after brain injury? 被引量:2
13
作者 Alberto Javier Ramos 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第11期1739-1741,共3页
Pioneer studies by Ramon y Cajal in the early nineteenth century evidenced that astrocytes are a heterogeneous cell population. The initial division of the glial family proposed by Rudolf Albert von Kolliker and Willi... Pioneer studies by Ramon y Cajal in the early nineteenth century evidenced that astrocytes are a heterogeneous cell population. The initial division of the glial family proposed by Rudolf Albert von Kolliker and William Lloyd Andriezen that separated glia into two groups, fibrous glia and protoplasmic glia, was further refined by Ramon y Cajal, 展开更多
关键词 Or an opportunity for neuroprotection and regeneration after brain injury
下载PDF
Oligodendroglioma: CD44 as a possible prognostic opportunity 被引量:8
14
作者 Buccoliero AM Caldarella A +4 位作者 Arganini L Mennonna P Ammanati F Taddei A Taddei GL 《中国神经肿瘤杂志》 2003年第3期143-143,共1页
CD44, in its standard form as well in its isoforms, is a cell surface adhesion glycoprotein which occurs in a widevariety of non-neoplastic and neoplastic ceils. CD44 has been considered to be implicated in tumoral gr... CD44, in its standard form as well in its isoforms, is a cell surface adhesion glycoprotein which occurs in a widevariety of non-neoplastic and neoplastic ceils. CD44 has been considered to be implicated in tumoral growth andin metastatic potential. We studied the immunohistochemical expression of CD44 standard in 30 oligodendrogliomas(19 primary lesions and 11 recurrences) in order to verify its possible prognostic role. Twelve primary oligoden- 展开更多
关键词 CD44 as a possible prognostic opportunity OLIGODENDROGLIOMA were
下载PDF
Strengths,weaknesses,opportunities,and threats(SWOT)analysis of supercapacitors:A review 被引量:3
15
作者 Pragati A.Shinde Qaisar Abbas +3 位作者 Nilesh R.Chodankar Katsuhiko Ariga Mohammad Ali Abdelkareem Abdul Ghani Olabi 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第4期611-638,共28页
The development of clean and sustainable energy sources has received widespread interest in the past few decades due to the rolling energy demands while extenuating the rising tiers of greenhouse gases and environment... The development of clean and sustainable energy sources has received widespread interest in the past few decades due to the rolling energy demands while extenuating the rising tiers of greenhouse gases and environmental pollution.Due to their intermittent nature,these green and sustainable sources require appropriate energy storage systems.Amongst different energy storage technologies,electrochemical energy storage devices,particularly supercapacitors(SCs),have fascinated global attention for their utilization in electric vehicles,power supports,portable electronics,and many others application requiring electric energy devices for their operation.Thus,the growth of SCs in the commercial market has squeezed requirements,and further developments are obligatory for their effective industrialization.In the meantime,SCs also face technical complications and contests for their introduction in industrial settings because of their low energy density and high Levelized cost.The present study combines core strengths,weaknesses,opportunities,and threats(SWOT)analysis of SCs with new perspectives and recent ideas.The challenges and the future progressive prospects of SCs are also presented in detail.This review will afford consistent direction and new superhighways for the further development of SCs as standalone and complementary energy storage systems. 展开更多
关键词 SUPERCAPACITORS Energy storage Strengths opportunITIES
下载PDF
The Farmer Entrepreneurs' Social Capital and Opportunity Recognition Behavior 被引量:2
16
作者 Jing GAO Yingliang ZHANG Changzheng HE 《Asian Agricultural Research》 2013年第3期84-88,93,共6页
Using the multivariate ordered logistic and probit regression method,based on the survey data of entrepreneurship concerning farmers in China,we analyze the impact of social capital ( namely the social network) on the... Using the multivariate ordered logistic and probit regression method,based on the survey data of entrepreneurship concerning farmers in China,we analyze the impact of social capital ( namely the social network) on the farmers' recognition of entrepreneurial opportunities and property of entrepreneurial opportunities. The research results show that the scale of farmers being embedded in social network has a positive effect on the probability of farmers to recognize entrepreneurial opportunities. The higher the frequency of contact and the greater the size of weak ties network in the social network,then the greater the possibility of farmers to find innovative opportunities. But strong ties network has no significant effect on replicating-type entrepreneurial opportunities. At the same time,the entrepreneurial farmers' education experience, migrant worker experience,innovation capability,and deep entrepreneurial atmosphere,are all important factors affecting the farmers' opportunity recognition 展开更多
关键词 SOCIAL CAPITAL Farmers’ ENTREPRENEURSHIP opportuni
下载PDF
Restored intestinal integrity,nutrients transporters,energy metabolism,antioxidative capacity and decreased harmful microbiota were associated with IUGR piglet's catch-up growth before weanling 被引量:1
17
作者 Chang Cui Caichi Wu +7 位作者 Jun Wang Ziwei Ma Xiaoyu Zheng Pengwei Zhu Nuan Wang Yuhua Zhu Wutai Guan Fang Chen 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2023年第1期390-408,共19页
Background:Intrauterine growth restriction(IUGR)is a major inducer of higher morbidity and mortality in the pig industry and catch-up growth(CUG)before weanling could significantly restore this negative influence.But ... Background:Intrauterine growth restriction(IUGR)is a major inducer of higher morbidity and mortality in the pig industry and catch-up growth(CUG)before weanling could significantly restore this negative influence.But there was limited knowledge about the underlying mechanism of CUG occurrence.Methods:Eighty litters of newborn piglets were divided into normal birth weight(NBW)and IUGR groups according to birth weight.At 26 d,those piglets with IUGR but over average body weight of eighty litters of weaned piglets were considered as CUG,and the piglets with IUGR still below average body weight were considered as NCUG.This study was conducted to systemically compare the intestinal difference among NBW,CUG and NCUG weaned piglets considering the crucial role of the intestine for piglet growth.Results:The results indicated that the m RNA expression of nutrients(amino acids,glucose,and fatty acids)transporters,and mitochondrial electron transport chain(ETC)I were upregulated in CUG piglets'gut with improved morphology compared with those NCUG,as well as the ratio of P-AMPK/AMPK protein expression which is the indicator of energy metabolism.Meanwhile,CUG piglet's gut showed higher antioxidative capacity with increased SOD and GSHPx activity,decreased MDA levels,as well as higher m RNA expressions of Nrf2,Keap1,SOD,and GSH-Px.Furthermore,inflammatory parameters including TNF-α,IL-1β,IL-6,and IL-12 factors,and the activation of MAPK and NF-κB signaling pathways were significantly elevated in the NCUG intestine,while the protein expression of ZO-1,Occludin and Claudin-1 was reduced.The alpha diversity of fecal microbiota was higher in CUG piglets in contrast with NCUG piglets,and the increased beneficial bacteria and decreased pathogenic bacteria was also observed in CUG piglets.Conclusions:CUG piglet's intestine showed comprehensive restoration including higher nutrients transport,energy metabolism,antioxidant capacity,and intestinal physical barrier,while lower oxidative stress,inflammatory response,and pathogenic microbiota. 展开更多
关键词 Antioxidative capacity catch-up growth Gut Intrauterine growth retardation PIGLETS
下载PDF
Measuring the effect of opportunity cost of time on participation in sports and exercise
18
作者 Nana Kwame Anokye Subhash Pokhrel Julia Fox-Rushby 《Open Journal of Preventive Medicine》 2013年第5期380-392,共13页
Background: There is limited research on the association between opportunity cost of time and sports and exercise due to lack of data on opportunity cost of time. Using a sample of 14142 adults from Health Survey for ... Background: There is limited research on the association between opportunity cost of time and sports and exercise due to lack of data on opportunity cost of time. Using a sample of 14142 adults from Health Survey for England (2006), we develop and test a composite index of opportunity cost of time (to address the current issues with data constraint on opportunity cost of time) in order to explore the relationship between opportunity cost of time and sports participation. Methods: Probit regression models are fitted adjusting for a range of covariates. Opportunity cost of time is measured with two proxy measures: a) composite index (consisting of various indicators of wage earnings) constructed using principal component analysis;and b) education and employment, approach in the literature. We estimate the relative impact of the composite index compared with current proxy measures, on prediction of sports participation. Findings: Findings suggest that higher opportunity cost of time is associated with increased likelihood of sports participation, regardless of the time intensity of activity or the measure of opportunity cost of time used. The relative impacts of the two proxy measures are comparable. Sports and exercise was found to be positively correlated with income. Another important positive correlate of sports and exercise is participation in voluntary activity. The research and policy implications of our findings are discussed. 展开更多
关键词 Physical Activity SPORTS and EXERCISE opportunity COST of TIME Index
下载PDF
Biodiversity Risk and Opportunity Assessment in BAT Cooperative Tobacco-growing Areas
19
作者 Long XU Jingming WANG +12 位作者 Kun FENG Yanfa CAI Bin LI Honghui YIN Dafei LI Lianchuan ZHOU Ying MA Gang WANG Pengcheng LIU Runtao LI Changhua ZHOU Ke YANG Jian CHEN 《Asian Agricultural Research》 2016年第2期28-29,33,共3页
Using the method in Biodiversity Risk and Opportunity Assessment Handbook of British American Tobacco Biodiversity Partnership,we assess biodiversity risks and opportunities in BAT and China's cooperative tobacco-... Using the method in Biodiversity Risk and Opportunity Assessment Handbook of British American Tobacco Biodiversity Partnership,we assess biodiversity risks and opportunities in BAT and China's cooperative tobacco-growing areas. The assessment results indicate that there are 8 risks and 1 opportunity. Action and monitoring plans have been made for medium and high risks as well as opportunity,to reduce impact on biodiversity. 展开更多
关键词 BAT Cooperative tobacco-growing area BIODIVERSITY RISK and opportunity ASSESSMENT
下载PDF
ROLE OF INTERVENING OPPORTUNITY IN TOURIST DESTINATION DEVELOPMENT 被引量:1
20
作者 PAN Li-li BAO Ji-gang 《Chinese Geographical Science》 SCIE CSCD 2005年第4期368-376,共9页
Intervening opportunity is an important factor in spatial interaction, and has very important impacts on tourist destination development in a region. There are few literatures on this topic in tourist researches, and ... Intervening opportunity is an important factor in spatial interaction, and has very important impacts on tourist destination development in a region. There are few literatures on this topic in tourist researches, and especially in China fewer tourist researchers pay attention to intervening opportunity theory. This article, taking Lin’an as a case study, aims to introduce intervening opportunity theory in tourist destination development by the comprehensive ana-lysis of some data including literatures, Internet information, longitudinal data and some tourist surveys. Both qualitative and quantitative methods are all used in this research. Firstly, the authors expatiate upon the definition of intervening opportunity, by reviewing the literatures in detail, take Lin’an of Zhejiang Province as a case study, and then analyze some necessary factors of intervening opportunity, such as regional tourist demands and supplies, tourist attractions, spatial distance and transportation, tourist images and costs, regional competition and cooperation in tourist destinations. Finally the impacts of intervening opportunity on Lin’an tourist development are analyzed in detail. The results show that intervening opportunity do not occur everywhere, and there must be some critical factors, and intervening opportunity surely plays important roles in tourist destination development. The tourist development in Lin’an is attributed to intervening opportunity of the spatial location between Hangzhou and Huangshan that are two famous tourist cities in China, and the occurrence of intervening opportunities in Lin’an is the integration of some external and internal factors. 展开更多
关键词 旅游业 空间竞争 黄山 杭州市 临安市 浙江 安徽
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部