首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
杏开二月     
已经是二月仲春了,大地柔软,天气慢慢热起来了。一场习习的春雨,浇得人心头酥酥的。我第一次注意到,家门前的杏树开了。枝干上,星星点点,挑着几朵白,轻盈得很,把薄薄的心打开,驻足美的枝头,观赏人间烟火。背后是灰灰的庭院,低矮的  相似文献   

9.
ABSTRACT

Morphometric analysis offers an alternative or augmentation to traditional archaeobotanical methods to address differences within and between plant species and their remains, refining and enhancing taxonomic resolution. Morphometrics, the measurement of size and shape, and the multivariate statistical analysis of generated quantitative variables, have long played a major role in biological research, including plant taxonomy and systematics, although its application in archaeobotany is relatively recent. Over the last few decades, there has been an increasing interest in the use of morphometrics for analysing a varied range of archaeological plant materials (mainly seeds, pollen, phytoliths, and starch grains). In particular, morphometrics have contributed to the study of the domestication and spread of many cereals world-wide, as well as that of other taxa including legumes, underground storage organs (USO), and fruits (such as olives, grapes, and dates). This paper reviews current methodologies, recent applications, and advances in the use of morphometrics in archaeobotanical research, discusses its role in exploring major research questions, and suggests possible future directions for its use.  相似文献   

10.
11.
以上海为例看晚清时期社会生活方式及观念的变迁   总被引:2,自引:0,他引:2  
李长莉 《史学月刊》2004,(5):105-112
晚清时期,上海的商业化、城市化生活环境变化,引起了人们生活方式的变动,出现了如洋货流行、从商之风、尊卑失序、女子走上社会、追求享乐等新社会风尚,导致传统伦理衰坏,同时也孕育产生了近代市场意识、近代工商观念、社会平等观念、功利主义及肯定人欲、自由的近代伦理观念。反映出生活方式的变动是引起近代生活伦理观念变迁的中介和启动力量。  相似文献   

12.
13.
14.
15.
16.
17.
Worldwide archaeological tourism, or tourism to sites with archaeological significance, has been rapidly growing and has attracted increased academic attention in recent years. China is an outstanding case in this field. In fact, its government has been actively promoting tourism and archaeological tourism for the last three decades. The understanding of the challenges that Chinese archaeological tourism is currently facing is the focus of this article. Four aspects will guide the discussion: the dilemma between site preservation and economic profitability, unregulated tourism development, the influence of UNESCO World Heritage designation, and authorities’ sensitivity towards ethnic issues in archaeological tourism.  相似文献   

18.
19.
Within the last 30 years, geographical information systems (GIS) have been used increasingly in the training of geographers. On the basis of the philosophy of technology and instrumental genesis, we sketch how the use of instruments interacts with learning processes and outline how this can be studied. We empirically analyse students' learning processes and the influences of teaching practice in an introductory course in GIS. We show that students have different strategies for creating their personal instrument for spatial thinking and how teaching interacts with the students' learning processes. Finally, we discuss how GIS may gradually alter future professional development of geographers.  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号