全文获取类型
收费全文 | 101篇 |
免费 | 4篇 |
出版年
2024年 | 2篇 |
2023年 | 4篇 |
2022年 | 1篇 |
2020年 | 6篇 |
2019年 | 6篇 |
2018年 | 4篇 |
2017年 | 5篇 |
2016年 | 6篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 20篇 |
2012年 | 2篇 |
2011年 | 5篇 |
2010年 | 5篇 |
2009年 | 4篇 |
2008年 | 3篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 2篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 1篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1989年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1979年 | 1篇 |
排序方式: 共有105条查询结果,搜索用时 15 毫秒
21.
22.
23.
24.
Luigi Marini 《Geofluids》2010,10(3):452-454
25.
We gauge the relative impact of economics, demographics, and politics on the decisions of 79 rural North Carolina counties whether to site a prison in the period 1970–2000. The results of this model demonstrate that, contrary to the expectation that counties site prisons in response to economic distress, the demographic characteristics of each county affect the relative likelihood of a prison siting more than its economics does. The influential demographic predictors are those inextricably bound up with development options—the education levels of its citizens—and those that limit its ability to pursue controversial projects—its not-in-my-backyard (NIMBY) constituencies—rather than those that measure its racial diversity. Therefore, prison siting is neither a simple story of economic determinism nor one of environmental racism. We use a proportional hazards regression to model this innovation adoption in response to the challenge to select methods that take the potential time dependence of adoptions into account. A duration model is also particularly suitable for cases such as this one for which the innovation adoption is better understood as a process than as an event. 相似文献
26.
A relevant subject of study in the sphere of ancient Egyptian painting technology is given by the evolution of the palette
across New Kingdom, Ptolemaic and Roman periods. Functionally to secondary factors such as geographic occurrence of minerals
and type of associated surface, the employment of certain painting materials provides relevant insights into particular issues
such as relative dating of the object and social rank of the owner. The Book of the Dead of Amenemhet (ROM 978 × 43.1, middle Ptolemaic Period) has been analysed at the Department of Restoration and Conservation
of Archivals, Graphics and Book Illumination of the Cologne Institute of Conservation Sciences (Germany). Together with visible
reflectance spectroscopy, digital and optical microscopy, devices such as XRD, SEM-EDX and FT-IR have been successfully employed
for the characterization of the pigments from the polychrome funerary papyrus displayed at the Royal Ontario Museum, Toronto
(Canada). The present research took place within a series of investigations performed at the CICS, devoted to the interdisciplinary
study of funerary Egyptian papyri dating from the early 18th Dynasty onwards. 相似文献
27.
Michele Degli Esposti Federico Borgi Claire Gallou Chloë Martin Kevin Lidour Sophie Méry 《Arabian Archaeology and Epigraphy》2020,31(1):105-118
At the end of 2018, the first season of excavation was carried out at the shell midden site of UAQ38. The site occupies the top of a sand dune not far from UAQ36 and UAQ2, two other recently investigated Neolithic shell middens. Several well-stratified anthropogenic levels were excavated at UAQ38, which can be dated mainly to the 5th millennium BC, although the recorded artefacts suggest a possible older date for the lowest levels. Food waste, post-holes, fireplaces, and burnt shell dumpings attest to human activities that took place at the site over a rather long period of time. Here the stratigraphic sequence will be presented, together with a first overview of the artefactual assemblage. The collected data will be concisely discussed in order to fit the site within the typology of Neolithic settlements that can be proposed for the area. UAQ38 is so far the only Neolithic site along the northeastern coast of the UAE for which stratified charcoal is available for dating. 相似文献
28.
Ongoing excavations at Tell Abraq (Emirate of Umm al-Quwain, U.A.E.) are revealing new aspects of this multiperiod site, which was occupied from c. 2500 BC to 300 AD. Together with substantial architecture dated to the 2nd and 1st millennia BC, relevant assemblages of archaeological materials are being collected and dated to different phases of the site’s life. Among this material, exceptional is the discovery of two jars bearing the impression of two different cylinder seals, which will be presented here. Seal impressions on any media are extremely rare in the whole of south-eastern Arabia and strongly indicate a foreign provenance for the jars. Their iconographic study, the fabric and morphological parallels for the jars, and probable chronology will be discussed, as this can highlight transmarine connections during the late 2nd-first half of the 1st millennium BC, as well as provide new data to address chronological issues in south-eastern Iran itself. 相似文献
29.
Luigi Musella 《Journal of Modern Italian Studies》2016,21(5):707-722
This article examines the flexibility of the notabile model in different circumstances and time periods. The idea of a notabile cannot be restricted to only a few cases as there are many examples of notabili who, despite not having social and family origins of the classical notabile type, tend to assume the same behavioural and cultural patterns in managing power. The patterns usually considered typical of a notabile are often linked to landed property and the professions, but there are many other cases that suggest that the qualities of the notabili change in different historical and political moments, and are easily adapted to changing social and environmental circumstances. Even when they do not seem to fit directly into the classical model, over time those original features are still evident. 相似文献
30.
The aim of this article is to understand the triggering factors of new firm growth in high-tech environments (life science, knowledge-intensive business services [KIBS] and engineering) by studying a representative sample of high-growth Italian start-ups. Our empirical research uses the information gathered during direct interviews with managers through a semi-structured questionnaire, which was presented to 382 new Italian firms. Considering the characteristics of new firms, this article summarizes the key growth factors. Investment in acquiring new competencies both in technology and marketing, development of dynamic capabilities (investment in human resources and new routines) and access to external knowledge and information sources emerged as significant. 相似文献