نتایج جستجو برای: including bronze

تعداد نتایج: 976641  

Journal: :Physical chemistry chemical physics : PCCP 2015
Yongjie Xi Zhangxian Chen Vincent Gan Wei Kiat Liang Huang Hansong Cheng

Hydrogenation of unsaturated organosulfur compounds is an essential process through which these species are converted into cleaner and more useful compounds. Hydrogen bronze materials have been demonstrated to be efficient catalysts in hydrogenation of simple unsaturated compounds. Herein, we performed density functional theory calculations to investigate hydrogenation of thiophene on hydrogen ...

2001
Mike Bishop

Currently, there are some 222 records in the Nottinghamshire Sites and Monuments Record (SMR) which are relevant to the First Millennium B.C. These records include 19 finds of Late Bronze Age metalwork, 5 examples of Iron Age metalwork, 9 find-spots of Iron Age coins, 57 find-spots of pottery ascribed to the Late Bronze Age and Iron Age, 21 finds of other objects ascribed to these two periods, ...

2004
Sharada Srinivasan

This paper explores the origins of the Nataraja cult in the state of Tamil Nadu in southern India. The trajectory of the dancing Shiva is traced: from the processional worship of metal icons outside the sanctum to the cultic elevation of the Nataraja bronze into the sanctum at Chidambaram. Archaeometallurgical, iconographic and literary evidence discussed shows that the Nataraja bronze, depicti...

2008
Matthew L. Murray

The archaeological community is invited to submit abstracts concerning changing depositional practices of European societies in the Early Iron Age. The specific aim of this session is to identify the formative processes, including the redevelopment of social relationships and systems of power, the cultivation of new symbols of identity and status, and the incorporation of innovative technologie...

The site of Kul Tepe is located near the city of Hadishahr, in Eastern Azerbaijan Province. It is an ancient multi-period mound, having an extension of about 6 hectares and rising 19 meters above the surrounding land. The second season of archeological excavations at the site, carried out in 2013, aimed at clarifying its chronology and its settlement organization. In the meantime it aimed at el...

Journal: :Clinical chemistry 1973
R S Schneider P Lindquist E Tong-in Wong K E Rubenstein E F Ullman

An assay technique, homogeneous enzyme immunoassay, is described for the quantitative determination of morphine derivatives in biological fluids. An enzyme is labeled with morphine. When the enzymelabeled morphine is bound by antimorphine antibodies, the enzyme is rendered inactive. Free morphine competes with enzyme-morphine for antibody binding sites preventing inhibition of enzyme activity. ...

2014
Alison A. Macintosh Ron Pinhasi Jay T. Stock

Humeral morphology has been shown to reflect, in part, habitual manipulative behaviors in humans. Among Central European agricultural populations, long-term social change, increasing task specialization, and technological innovation all had the potential to impact patterns of habitual activity and upper limb asymmetry. However, systematic temporal change in the skeletal morphology of agricultur...

Journal: :Chemical communications 2010
Lei Wang Jinhua Zhan Weiliu Fan Guanwei Cui Honggang Sun Linhai Zhuo Xian Zhao Bo Tang

Microcrystalline sodium tungsten bronze nanowire bundles were obtained via a facile hydrothermal synthesis, and were applied in water purification as visible-light-driven photocatalysts for the first time.

1998
Patricia L. Fall Steven E. Falconer

This paper considers the economic and environmental impacts of emerging regional commerce that accompanied the rise and collapse of early Near Eastern urbanism. We integrate regional data on settlement and vegetation with detailed evidence of rural agriculture from two Bronze Age villages in the Jordan Valley. This approach is explicitly rural, in light of the largely rural character of Levanti...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Amy Goldberg Torsten Günther Noah A Rosenberg Mattias Jakobsson

Dramatic events in human prehistory, such as the spread of agriculture to Europe from Anatolia and the late Neolithic/Bronze Age migration from the Pontic-Caspian Steppe, can be investigated using patterns of genetic variation among the people who lived in those times. In particular, studies of differing female and male demographic histories on the basis of ancient genomes can provide informati...

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