马铃薯在中国传播的技术及社会经济分析

本文从生物、技术及社会经济的角度考证马铃薯在中国传播的过程，重点对传播条件和传播障碍进行阐述，分析了20世纪中国的社会变迁和科技进步对马铃薯传播的影响，并进一步讨论马铃薯扩种对我国粮食生产和社会生活的作用。     

桂林2013年3月19日1次强对流性天气过程分析

针对2013年3月23日出现的降雹天气过程,利用Micaps资料及新一代雷达探测资料,从环流背景、物理量场和雷达回波演变几方面综合分析了产生这次强对流天气的过程。     

Canadian consumer acceptance of gene-edited versus genetically modified potatoes: A choice experiment approach

In 2016, second-generation genetically modified (GM) potatoes were approved for production and sale in Canada. In this study, we analyze how consumer acceptance of GM potatoes may be affected by various factors, including the trait introduced (i.e., the product benefits), the type of breeding technology used, and the developer of the potato using any technology. We conduct an online survey and use a stated choice experiment to collect data on consumer acceptance of GM and other potatoes in Canada. Random utility models are used to analyze the economic value consumers place on the various attributes of the potatoes. Our results show that consumers are willing to pay more for a health attribute (reduced acrylamide produced when potatoes are fried) and an environmental attribute. Respondents in general need to face discounted prices to buy potatoes created by either gene editing or GM (either transgenic or cisgenic/intragenic) technologies. However, consumers are in general more accepting of the gene editing technology than the GM technologies. Our results also show that government is the most preferred developer of the potatoes, regardless of technology. Results from this study can help guide public and private management of the introduction of new foods when the products are developed with unpopular technologies.     

温泉度假村旅游服务质量评价实证研究——以河源御临门温泉度假村为例

以河源御临门温泉度假村为例,以温泉旅游服务质量评价问卷为基础,对影响温泉旅游服务质量的20个因素进行了分析,探讨游客对温泉度假村整体旅游服务质量的总体评价。建议度假村从"原生态"温泉文化、温泉旅游解说系统的建设、特色客家温泉饮食文化、员工培训等四个方面进行完善与提高,提升服务满意度。     

Slicing,Dicing, Spicing,and Pricing: Factors Influencing Purchase and Consumption of Fresh Potatoes

To better understand potential reasons for a North American decline in fresh potato consumption, a region-wide survey (n = 1009) was undertaken in eastern Canada. Results were examined comparing high- and low-frequency potato users on a variety of factors, including beliefs, attitudes, barriers, needs, and satisfaction with potatoes. Respondents indicated positive perceptions pertaining to potato nutrition, taste, preparation, and overall enjoyment. Multiple logistic regression analysis suggested two variables—age and the perceived importance of potatoes for the everyday meal—were strong predictors of high versus low frequency of potato consumption. Respondents judged the ability to see the potato in the package, potato firmness, and locally produced as point-of-purchase characteristics particularly important when buying fresh potatoes. However, respondents also indicated that their needs were not fully met and expressed relatively low levels of satisfaction when purchasing potatoes. Based on the results, suggestions are provided for improving the marketing of fresh potatoes.     

On the timing of political regime changes in resource-dependent economies

We consider a resource-dependent economy initially ruled by the elite. The transition from the autocratic to a more democratic regime takes place only if the citizens decide to revolt against the elite. The occurrence of a revolution primarily depends on the autocratic regime vulnerability and the level of inequalities, both being driven by the elite׳s redistribution and repression policies. First, we show that when a political transition is inevitable, the elite choose the maximum rate of redistribution to lengthen their period in office. Second, we find that the duration of the autocratic regime is linked to resource abundance, and how it relates to the elite׳s policies. More resources lead to a shorter reign of a redistributive regime, which may not be the case of a repressive regime. Finally, we interpret the Arab spring sequence in light of our findings.     

蓝田县汤峪温泉开发的影响因素分析

温泉旅游度假区是我国一个新兴旅游项目,近年来发展很快。通过大量的实证调查,对影响蓝田汤峪温泉度假区开发的主要因素进行综合分析。这些因素是温泉资源自身因素,周边自然和人文景观,客源市场和交通条件,区域经济发展水平,温泉旅游文化特色,空间集聚和竞争以及人才状况。它们共同作用于汤峪温泉旅游的发展。通过对这些因素的分析,对蓝田汤峪温泉旅游的进一步开发具有重要的现实意义。     

5种改良剂对马铃薯挂面品质的影响研究

本文以中筋小麦粉混合马铃薯雪花全粉为研究试样,采用添加谷朊粉、葡萄糖氧化酶、沙篙胶、脂肪酶和茶多酚5种不同改良剂,通过粉质仪和物性仪的特性分析,结合感官和正交优化试验,确定了各改良剂的最适用量,探讨了其对高含量的马铃薯面团和挂面品质的影响.结果表明,5种改良剂均对马铃薯面团质构特性、蒸煮特性、粉质特性和感官有改善作用....     

加强领导确保长江春季禁渔

长江渔业在我国有着特殊重要的地位,开展长江春季禁渔意义重大。各级政府应加强领导,深入细致地做好各项工作,确保长江流域首次春季禁渔顺利实施。     

温泉旅游的发展与研究述评

对国内外温泉旅游发展的历史回顾与研究进行了综述：国外温泉旅游大致经历了缘起、发展与衰弱、复兴三个发展阶段；中国的温泉旅游改革开放以后才真正开始，走过了从疗养院到度假区再到综合性旅游度假区的发展历程。国内外温泉旅游的研究以历史回顾和经验总结为主，在温泉旅游的开发规划、旅游市场、温泉旅游地生命周期及可持续发展等方面有待发展深化。