首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   113篇
  免费   3篇
  2021年   1篇
  2020年   4篇
  2019年   2篇
  2018年   8篇
  2017年   8篇
  2016年   12篇
  2015年   3篇
  2014年   2篇
  2013年   16篇
  2012年   7篇
  2011年   6篇
  2010年   9篇
  2009年   2篇
  2008年   9篇
  2007年   4篇
  2006年   5篇
  2005年   1篇
  2004年   2篇
  2003年   1篇
  2002年   5篇
  2001年   4篇
  1999年   2篇
  1998年   1篇
  1995年   1篇
  1988年   1篇
排序方式: 共有116条查询结果,搜索用时 31 毫秒
51.
Previous studies have reported a Chalcolithic site distribution pattern in the Northern Negev as clustered, exhibiting a number of characteristics that imply a chiefdom level of organization. However, a recent spatial analysis suggests that in some areas of the Northern Negev, settlement patterns were essentially random and that there is no evidence for regional chiefdom organization. We examine this controversy by closely inspecting the methods of spatial analyses employed by previous researchers, by introducing an additional multiscalar spatial technique, namely Ripley's K-function, and by using updated and modified data. Our results indicate that settlement distributions were essentially clustered, even in small areas along the wadis. Examining the relation between these spatial-dependent distributions and the landscape surroundings revealed that particular physiographic characteristics of the wadis contribute to increscent in site clusters. Furthermore, a general linear model analysis suggests that the distribution of Chalcolithic sites is determined primarily by environmental factors rather than factors related to political organization.  相似文献   
52.
Many Pleistocene caves and rock shelters contain evidence of carnivore and human activities. For this reason, it is common to recover at these sites faunal remains left by both biological agents. In order to explain the role that carnivores play at the archaeological sites it is necessary to analyse several elements, such as the taxonomical and skeletal representation, the age profiles, the ratio of NISP to MNI, the anthropogenic processing marks on the carcasses (location and purpose of cutmarks and burning and bone breakage patterns), carnivore damage (digested bones, location and frequencies of toothmarks and bone breakage), length of the long bones, frequencies of coprolites and vertical distribution of the faunal remains, inter alia. From this, the documentation of carnivores in a faunal assemblage with a clear anthropogenic component can be understood from three main phenomena: (1) the carnivores as accumulators and the use of the site as a den; (2) carnivores as scavengers of hominid refuse and; (3) carnivores as hominids’ prey. Of these three phenomena, the last one is the least documented at the Middle Pleistocene sites. From this perspective, here we present the case of the anthropogenic use of a lion (Panthera leo fossilis) from level TD10-1 of Gran Dolina (MIS 9, Sierra de Atapuerca, Burgos, Spain). The lion bone remains show signs of direct interaction between this big cat and human groups that occupied Gran Dolina in these chronologies. From this perspective, the aim of this paper is to contribute to the knowledge of the role developed by large carnivores in the anthropogenic contexts and to provide data on human use of these predators at the European Middle Pleistocene sites.  相似文献   
53.
胡苑 《神州》2012,(28):195+197-195,197
CET-3 (College English Test Band 3) in Zhejiang Province adds English writing part to the new syllabus and therefore to develop strong English writing skills in vocational colleges students becomes one of the important tasks of vocational colleges in English teaching.This paper analyzes the difficulties in the teaching of CET-3 English writing at vocational colleges and proposes teaching strategies to improve students’ level of English writing.  相似文献   
54.
Abstract

The Hormiguero site is a large mountainside Apache residential site in the Peloncillo Mountains of southern Arizona that lies in the heart of historically documented Chiricahua Apache territory. It represents an encampment at an important caching location, a category of residential site that has not been previously described archaeologically. Ethnographic data are enlisted to understand this unique type of Apache residential site and a previously unknown cache form—the platform cache. Archaeological evidence is combined from a number of sites with caches like those at Hormiguero to interpret aspects of cultural identity and chronology including the presence of ancestral Apaches in southern Arizona as early as the 14th century a.d.  相似文献   
55.
Abstract

The recently discovered human remains from Callao Cave, northern Luzon, Philippines securely date the migration of hominins into the Philippines to ca. 70 kya (thousands of years ago). The direct route to reach Luzon from the Asian mainland is via Borneo, Palawan, through Mindoro and into Luzon. Our research focuses on Mindoro Island as a potential stepping stone to the main Philippine Archipelago. While Palawan and Luzon have produced evidence for early human occupation, no systematic research on the prehistory of Mindoro has been conducted until now. We report on recent archaeological investigations at the Bubog rockshelter sites on the small island of Ilin just off the coast of Mindoro. The excavations produced evidence of stratified sequences of human habitation at the two rockshelter sites in the form of dense shell middens that date to ca. 11 kya onwards. They provide direct evidence on how variability in landscape formation, sea levels, and landmass during the terminal Pleistocene and early Holocene influenced the behavior of early human populations. Numerous species of molluscs were recorded and provisional results indicate variations in the invertebrate faunas throughout the stratigraphic sequences, resulting from sea level rise and the establishment of coral reefs between Ilin and Mindoro at the end of the Pleistocene. Our results contribute substantially to our understanding of the processes of human island adaptation, complement ongoing research into Island Southeast Asia’s paleogeography, and enhance current knowledge of prehistoric subsistence strategies across the region.  相似文献   
56.
刘丽丽  徐蕊 《人文地理》2010,25(4):77-81
自1978年始,为了发挥中心城市带动周围农村的作用,国家行政体制作出了重要改革,实行市领导县体制。随之各级行政区的数量、名称和范围发生了较大的变化。本文以1978-2007年国家民政部统计数字为准,对改革开放30年来,中国县级以上行政区域名称的变更进行了统计分析与研究,揭示了政区通名和专名的变更特点及影响因素,指出更名中存在的主要问题,最后提出县级以上行政区域名称的变更的对策和建议。  相似文献   
57.
赵宏杰  吴必虎 《人文地理》2013,28(5):129-138
本文以广州市台资企业台籍人员为例,通过实证研究探讨职业倦怠、休闲调适策略与休闲知觉自由三者间的关系及不同产业型态受试者程度表现的差异性。研究主要结果表明,职业倦怠与休闲知觉自由呈显著负相关;职业倦怠与休闲调适策略呈显著正相关;休闲调适策略除与休闲知觉自由呈显著正相关外,同时对职业倦怠与休闲知觉自由的影响关系具有显著的中介调节效果。此外,技术制度企业群聚区台籍人员的职业倦怠与休闲调适程度相对低于传统劳力企业群聚区台籍人员,而在休闲知觉自由程度方面则相对高于传统劳力企业群聚区台籍人员。研究成果对于台资企业健全台籍人员工作与休闲生活管理机制具有一定的参考价值。  相似文献   
58.
我国区域发展战略的回顾、评价与启示   总被引:1,自引:0,他引:1  
建国以来,我国区域发展战略经历了均衡发展、非均衡发展和协调发展三个阶段。区域发展战略的演变呈显出主体多元化、内容多维度化、机制市场化和战略空间细化的趋势。与此同时,现行区域发展战略存在若干不足,有追求政策优惠忽视制度创新的倾向,区域发展战略之间缺乏宏观整体性衔接,阻碍区域协调发展的瓶颈远未取得突破,区域发展战略仍过于强调效率目标,对不发达地区关注不足。因而,未来区域发展战略的制定,不应追求数量,要注重是否真正有利于实现区域的改革创新;亟需制定一个全局性区域连接发展规划,或者以整合发展的理念对现有的区域发展战略规划进行统筹管理;中央应制定和出台针对性的法律法规保障要素的自由流动和区际自由公平贸易;国家级区域发展战略的地区选择应更注重公平目标。  相似文献   
59.
The highland Wari Empire established a presence within the Nasca region of south coastal Peru during the Middle Horizon period. To clarify the nature of this interaction, we analyzed stable carbon and nitrogen isotope ratios of human bone collagen from individuals living in the Southern Nasca Region (SNR) before (1–750 AD) and during (750–1000 AD) imperial influence. The stable isotope data do not indicate that the Wari Empire transformed maize agricultural labor in the Las Trancas Valley of the SNR. In fact, during both time periods, Nasca people had access to a wide range of food items.  相似文献   
60.
We compare the organization of obsidian flaked stone technologies in two different time periods at CA-INY-30, a village site in southern Owens Valley, eastern California. Previous archaeological studies suggest a reorganization in settlement patterns between the Newberry (ca. 3500–1500 BP) and Marana (ca. 650-contact) periods, from a highly mobile to a more residentially sedentary one. New geochemical data, based on laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analyses of obsidian artifacts associated with discrete house floors, support this basic settlement model, but reveal new detail in how people moved across the landscape and accessed, extracted, reduced and used obsidian resources. In the earlier Newberry period, there is no relationship between flake size and distance-to-source, and the falloff curve relating frequency of obsidian against distance is more gradual, as expected, but contrary to our expectations, source diversity is not higher. These factors suggest extremely high mobility, but also selective extraction of particular sources. Newberry obsidian may have been acquired by groups of hunters who embedded quarrying within long-distance trips to distant hunting grounds, and subsequently transported bifacial cores to base camps. By contrast, Marana patterns show strong relationships between flake size and distance from source and steeper fall-off curves, suggesting groups acquired their obsidian primarily from closer sources, likely via exchange networks. At the same time, geochemical diversity, especially among smaller resharpening flakes, is higher in the Marana period, highlighting the wide-ranging conveyance systems through which obsidian moved.  相似文献   
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