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   23篇
  免费   1篇
  2018年   1篇
  2017年   1篇
  2016年   2篇
  2015年   1篇
  2014年   1篇
  2013年   3篇
  2010年   1篇
  2009年   1篇
  2007年   1篇
  2006年   1篇
  2004年   1篇
  2002年   1篇
  2001年   1篇
  1998年   1篇
  1993年   1篇
  1987年   1篇
  1985年   1篇
  1977年   1篇
  1975年   1篇
  1974年   1篇
  1971年   1篇
排序方式: 共有24条查询结果,搜索用时 15 毫秒
1.
Der deutsch-tschechische Grenzraum liegt gewisserma?en in einer Sandwich-Position zwischen verschiedenen europ?ischen Makroregionen; auf europ?ischer Ebene wird er bislang eher als Verbindungselement wahrgenommen. Seine innere Struktur ist von einer relativ geringen Besiedlungsdichte und ausgepr?gten Stadt-Land-Unterschieden gekennzeichnet. Im Frühjahr 2006 gründeten die beiden nationalen Regierungen eine deutsch-tschechische Arbeitsgruppe für Raumentwicklung. Der Artikel skizziert, welche Ziele und Erwartungen damit verbunden werden und welche Funktionen ein solches Gremium übernehmen kann. Dazu wird zun?chst die Ausgangssituation dieses Raumes skizziert. Abschlie?end wird das m?gliche Leitbild des „Mitteleurop?ischen Kristalls“ vorgestellt.  相似文献   
2.
We report eight new accelerator-mass spectrometer (AMS) radiocarbon (14C) dates performed directly on individual bones of extirpated species from Crooked Island, The Bahamas. Three dates from the hutia (Geocapromys ingrahami), recovered from a culturally derived bone assemblage in McKay's Bluff Cave (site CR-5), all broadly overlap from AD 1450 to 1620, which encompasses the time of first European contact with the Lucayan on Crooked Island (AD 1492). Marine fish and hutia dominate the bone assemblage at McKay's Bluff Cave, shedding light on vertebrate consumption by the Lucayans just before their demise. A fourth AMS 14C date on a hutia bone, from a non-cultural surface context in Crossbed Cave (site CR-25), is similar (AD 1465 to 1645) to those from McKay's Bluff Cave. From Pittstown Landing (site CR-14), an open coastal archaeological site, a femur of the Cuban crocodile (Crocodylus rhombifer) yielded an AMS 14C date of AD ~1050–1250, which is early in the Lucayan cultural sequence. From a humerus in a non-cultural surface context in 1702 Cave (site CR-26), we document survival of the Cuban crocodile on Crooked Island until AD ~1300–1400, which is several hundred years later than the well-documented extinction of Cuban crocodiles on Abaco in the northern Bahamas. We lack a clear explanation of why Cuban crocodiles likely survived longer on Crooked Island than on a larger Bahamian island such as Abaco. One AMS 14C date on Crooked Island's extinct, undescribed species of tortoise (Chelonoidis sp.) from 1702 Cave is BC 790 to 540 (2740 to 2490 cal BP), which is ~1500–1700 years prior to human arrival. A second AMS 14C date, on a fibula of this tortoise from McKay's Bluff Cave, is AD 1025 to 1165, thereby demonstrating survival of this extinct species into the period of human occupation.  相似文献   
3.
4.
Nondestructive analyses of medieval reverse paintings on glass revealed the same dyes and pigments customarily used in panel paintings. However, there is one exception: the black colorant is not a carbon-based pigment, but black enamel. In this respect, the stylistic as well as the technical influence of stained glass artwork can clearly be seen on reverse paintings on glass. However, there is a crucial difference: in reverse paintings, the black enamel is not fired onto the glass but painted (cold painting). Additional analyses confirmed these findings. Based on these results, the art form “reverse painting on glass” has technically to be characterized as a mixture of “stained glass” and “panel painting” that nonetheless develops into a genre of its own.  相似文献   
5.
Ohne Zusammenfassung  相似文献   
6.
7.
Two key reasons are most often cited for the low impact of grey literature sources in archaeology, difficulties with access and lack of peer review. Seymour (this volume) has examined the constitution of grey literature and discussed themes surrounding accessibility. Although peer review is an important topic that deserves careful consideration, for the present discussion it is sufficient to state that the vast bulk of archaeology’s grey literature, the reports resulting from Cultural Resource Management (CRM) projects, receives several levels of careful, often expert review before acceptance as the basis for development project approvals. Without minimizing the importance of access to the grey literature or disparaging important efforts to improve it, then, this paper focuses on a separate issue, the discourse surrounding grey literature in archaeology and the hegemony it supports. I offer a manifesto, rather than a scientifically dispassionate account, because the current situation requires change, not study.  相似文献   
8.
9.
A noted American specialist on regional affairs in the Russian Federation presents and analyzes a compilation detailing the political orientation of Russia's provincial executives. The data represent electoral results and include information from 68 provinces (49 oblasts, 6 krays, 10 autonomous okrugs, and 1 autonomous oblast) and 21 republics through September 1997. The discussion covers Russian regional politics, the results of regional elections held in 1996, and an assessment of alternative futures. Tabular material identifies the names of chief executives, dates of most recent elections, party support, and results relating to incumbency. Journal of Economic Literature. Classification Numbers: H77, D52, P41. 3 tables, 25 references.  相似文献   
10.
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