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Gottfried Wilhelm Leibniz (1646-1716) . Akademievorlesungen Februar - März 2016

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Book Series: Hamburger Akademievorträge ISBN: 9783943423396 Year: Pages: 138 DOI: 10.15460/HUP.AV.1.171 Language: German
Publisher: Hamburg University Press
Subject: History
Added to DOAB on : 2019-01-15 13:33:21
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Abstract

The conflict of priorities over the discovery of differential and integral calculus between Leibniz and Newton is one of the most violent and far-reaching conflicts in the history of science. It developed slowly - and interestingly- not as a result of a personal conflict between the two scientists, but rather as a result of a conflict that the employees of these men conjured up. The lectures documented in this volume deal with the development of the priority dispute up to its consequences for English analysis in the centuries after Newton. The volume follows the presentation of Thomas Sonar: The history of the priority dispute between Leibniz and Newton (Springer Spektrum 2016).

Neue Perspektiven für geochemische Untersuchungen von neolithischen Steingeräten. Ein Methodenvergleich zwischen portabler energiedispersiver Röntgenfluoreszenzanalyse (P-ED-RFA) und wellenlängendispersiver Röntgenfluoreszenzanalyse (WD-RFA) am Beispiel von bandkeramischen Dechselklingen aus Diemarden (Südniedersachsen)

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ISBN: 9783943423051 Year: Pages: 130 DOI: 10.15460/HUP.129 Language: German
Publisher: Hamburg University Press
Subject: History
Added to DOAB on : 2019-01-15 13:33:22

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Shoe-last celts (Dechselklingen) are characteristic legacies of the -iddle European Old and Middle Neolithic. They are important sources of economic and social archaeological investigations. This requires the determination of the used raw materials and their origin. In recent years, extensive geochemical and petrographic investigations of interchangeable blades have been carried out. Within the scope of various projects, a database with geochemical analyses of wmuch more than 500 blades and raw material pieces has been created. The analyses were all generated by wavelength dispersive X-ray fluorescence analysis (WD-RFA). The petrographic and geochemical examination was always accompanied by a sampling of the investigated pieces, which resulted in more or less severe damage to the artifacts. The portable energy dispersive X-ray fluorescence analysis (P-ED-RFA), which has recently been used in archaeometric ceramic analysis, can non-destructiveally determine the geochemical composition of vascular ceramics. In contrast to all the methods used so far, the sample does not have to be prepared in the laboratory, but can be carried out directly on site in a relatively short time. Thus, a time- and thus cost-effective procedure is available.

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