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   297篇
  免费   46篇
  2024年   2篇
  2023年   2篇
  2022年   2篇
  2021年   1篇
  2020年   1篇
  2019年   2篇
  2018年   22篇
  2017年   28篇
  2016年   27篇
  2015年   6篇
  2014年   21篇
  2013年   66篇
  2012年   49篇
  2011年   48篇
  2010年   35篇
  2009年   7篇
  2008年   4篇
  2007年   3篇
  2006年   3篇
  2005年   1篇
  2003年   3篇
  2001年   1篇
  2000年   2篇
  1999年   4篇
  1998年   1篇
  1997年   1篇
  1977年   1篇
排序方式: 共有343条查询结果,搜索用时 31 毫秒
11.
12.
Recent excavations at Sibudu Cave, KwaZulu-Natal, South Africa, uncovered an Iron Age horizon below which is a complex 3 m thick Middle Stone Age sequence with post-Howiesons Poort, Howiesons Poort, Still Bay and pre-Still Bay layers. Available OSL ages indicate that the Howiesons Poort occupation is older than 60 ky and the Still Bay older than 70 ky. Here we present the archaeological context and the taphonomic analysis of six Afrolittorina africana, three of which bear perforations, from the Still Bay and Howiesons Poort layers of this site. The single specimen from the latter cultural horizon comes from the lowermost layer attributed to this technocomplex. This and the depositional context of this layer suggest that this shell derives, as do the other five, from the Still Bay occupation layers. Taphonomic analysis of the archaeological specimens based on present day Afrolittorina africana biocoenoses, microscopic examination, morphometry, experimental perforation of modern shells, and a review of the natural agents that may accumulate marine shells at inland sites, indicate probable human involvement in the collection, transport, modification, and abandonment of Afrolittorina africana in Sibudu. If confirmed by future discoveries these shells would corroborate the use of personal ornaments, already attested at Blombos Cave, Western Cape Province, by Still Bay populations. The apparent absence of ornaments at Howiesons Poort sites raises the question of the mechanisms that have led to cultural modernity since it seems to contradict the scenario according to which cultural innovations recorded at Middle Stone Age sites reflect a process of continuous accretion and elaboration interpreted as the behavioural corollary of the emergence of anatomically modern humans.  相似文献   
13.
14.
This article aims at defining the role of constitutional courts in protecting the fundamental human rights of individuals, by relating the importance of constitutional judicial review and the established international standards related to the way it is performed. The study also provides an in‐depth analysis of the structure and working mechanism of the new constitutional court in Jordan with regard to its main functions described in the constitution of providing oversight of the constitutionality of laws and regulations in power, and interpreting provisions of the constitution. The study concludes that current statutory provisions with respect to the court proceedings and the method of undertaking its judicial work serve as safeguards that strengthen the role of the court in promoting individuals’ human rights. The study defines a vision of what is anticipated from the new constitutional court of Jordan and other courts in the field of defending human rights from the contemporary threats the world is facing, which only serve to increase fears among individuals that their basic rights are subject to serious attacks and violations.  相似文献   
15.
This article comprehensively examines the 1999 recommendation of the Tunisian government to create an International Constitutional Court that is designed to enhance the principles of democracy and human rights and to strengthen the constitutional doctrine which states that the people are the source of authority in a given country. This proposal, which was strongly advocated by former Tunisian President Mohamed Moncef Marzouki during his term in office, aims to underscore the importance of establishing an international judicial entity and analysing its bylaws with respect to its terms and conditions, formation, jurisdiction, and selection of judges. The article traces the trajectory of the movement, from the proposal stage to the latest developments in formally establishing the international judicial entity. Finally, the article identifies various possible difficulties and challenges that are likely to stand in the way of implementing the proposal.  相似文献   
16.
17.
Micromorphological analysis of sediments from the Middle Stone Age site of Sibudu Cave, KwaZulu-Natal, South Africa, provides a high-resolution sequence and evidence of site formation processes of predominantly anthropogenic deposits. This methodology allows for a detailed interpretation of individual anthropogenic activities, including the construction of hearths and bedding and the maintenance of occupational surfaces through the sweep out of hearths and the repeated burning of bedding. This analysis also provides a context for evaluating other studies at the site relating to magnetic susceptibility, paleobotany, paleozoology, anthracology, and studies of ochre.  相似文献   
18.
Ever since Dart (J. Phys. Anthrop. 7 (1949) 1) interpreted certain bones from Makapansgat as tools, scientific consensus has fluctuated as to whether some bone objects from early hominid sites should be interpreted as artefacts, or the result of non-human taphonomic processes, which are known to produce pseudo-bone tools morphologically similar to human modified or used artefacts. Here we present possible evidence of bone tool shaping from Swartkrans (Members 1–3; ca. 1.8–1.0 Mya). Four horncores and the proximal end of an ulna used as tools in digging activities also have facets covered by parallel spindle-shaped striations characteristic of grinding. Identification of these traces as possibly resulting from deliberate shaping or re-sharpening of the bone tools is based on the characterisation of the use-wear pattern and other taphonomic modifications observed on the Swartkrans bone tools. This interpretation is also supported by the study of the remainder of the horncores from Swartkrans, horncores from other southern African Plio-Pleistocene sites (Sterkfontein, Makapansgat, Gondolin), modern horncores affected by pre- and post-mortem modification, ethnographic, LSA, African Iron Age and experimental bone tools shaped by grinding. These data suggest that early hominids had the cognitive ability to modify the functional area of bone implements to achieve optimal efficiency.  相似文献   
19.
Deep geopolitical changes in the South Caucasus have considerably influenced the relationships of Iran and the three republics of Armenia, Azerbaijan and Georgia. Geographical location and strategic significance have made this region one of the most important in the world. Because of its historical affinities and socio-cultural links with the region's peoples, the Islamic Republic of Iran has expanded political-economic cooperation with them. The active presence of regional and trans-regional actors has directly affected this relation. This article mainly seeks to examine Iran's relations with the South Caucasus republics, considering the opportunities created since their independence following the collapse of the Soviet Union.  相似文献   
20.
In the last few years virtual anthropology has been used to solve different problems that could not be properly addressed using a traditional anthropological approach. Mainly when dealing with mummies or embalmed bodies, the virtual approach is the only solution to carry out a detailed analysis of the skeleton without jeopardizing the integrity of the physical remains.  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