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Deterioration of medieval painting in the chapel of the Holy Nail, Siena (Italy) partially treated with Paraloid B72(Elsevier, 2009)Painted surfaces in the Chapel of the Holy Nail in the medieval ex-hospital of Siena show five areas of oxidation and blackening. Most were treated with Paraloid B72 acrylic resin 40 years ago. To study deterioration of ...
Sulfur cycling and methanogenesis primarily drive microbial colonization of the highly sulfidic Urania deep hypersaline basin(National Academy of Sciences, 2009)Urania basin in the deep Mediterranean Sea houses a lake that is > 100 m deep, devoid of oxygen, 6 times more saline than seawater, and has very high levels of methane and particularly sulfide (up to 16 mM), making it among ...