Papers by Selene Cannelli
Recovering lipids from potsherds has always been important to archaeologists because of the data ... more Recovering lipids from potsherds has always been important to archaeologists because of the data that can be recovered . With the advance of science, even lipid extraction is starting to improve by finding new methods that need fewer samples and less time to collect results. In 2000 York University developed a more efficient method to extract lipids from archaeological potsherds with sulfuric acid. This project compared this new technique with conventional solvent extraction by BSTFA and saponification methods to test which technique is the more appropriate to recover residues from ceramic walls. The solvent extraction proved to be the procedure that recovers every main molecule of the compounds tested, while the saponification and sulphuric acid techniques derivatized the molecules. The sulfuric acid method was long to conduct, increasing the chances to contaminate the samples. This novel method proved to yield higher recoveries of lipids, but at the same time there has been compositional information loss due to hydrolysis of lipids, in fact no wax esters or TAG molecules were recovered. The only molecule that this method was not able to derivatize is cholesterol from the pistacia spp resin. It is recommended to proceed with this method if the conditions of the sample are in a poor conservation state, to make sure that more lipids are recovered from the ceramic walls. It is also useful to further analyse molecules obtained with other extraction methods to conduct more studies on them.
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This project has the purpose to understand if it is possible to know what caused specific bone fr... more This project has the purpose to understand if it is possible to know what caused specific bone fractures. The project focused on bone fractures caused by a car hit and by a fall from a cliff. Two subjects were considered: a dog hit by a car, and a baby pig thrown by a cliff postmortem. I will examine the bones in order to document the type of fracture caused by the two different types of impact, and if they have a specific pattern. I expect this research to show different kind of trauma from those hits. This project will be helpful in murder cases. Researches can understand if a body found on the bottom of a cliff felt from that cliff, or if it was moved there and the real crime scene is somewhere else.
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Discussing Homo floresiensis.
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Some techniques that use teeth to identify sex, age, health. It is a research paper and it does n... more Some techniques that use teeth to identify sex, age, health. It is a research paper and it does not go in through great details.
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Papers by Selene Cannelli