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Professor Follow my GeologyLife on Instagram: @thatscandinaviangeologist I am a geologist with great interest in past global environmental changes and the sedimentary rock record. My research revolves around stratigraphy, sedimentary geology and geochemistry and palaeoecology. I teach in areas ranging from the microscopical world of rocks and fossils to deep time stratigraphy and the evolution of
https://www.geologi.lu.se/mikael-calner - 2026-06-12
Aim: Several studies have addressed the association between changes in the female sex hormones estrogen and progesterone levels and changes in parameters of periodontitis. In order to understand how these hormones affect periodontal health it is of major importance to obtain information on their physiological importance. We have previously shown that periodontal ligament cells (PDL cells) express
In this article the authors suggest that chaos theory can provide us witha new perspective on archaeology. Newtonian thinking is predominantin archaeology, as well as in the humanities in general. This results inthe hegemony of analytic methods and a linear way of thinking on causeand effect. However, chaos theory has shown that behind many phen-omena that may seem random lies order. Since these c
Analysis of conformations and electron transitions of 3-(alkyl or aralkyl)-5-(methyl or phenyl)rhodanines with analogues and N,N'-bis[(S)-1-phenylethyl]-thiourea have been performed by X-ray crystallography, 1H NMR, molecular mechanics, ultraviolet spectroscopy and for the chiral rhodanines, enantiomer chromatography and circular dichroism spectroscopy. The magnitude of rotational barriers has bee
