Provisionally referred to as presumed solitary circumscribed retinal astrocytic proliferation (PSCRAP), the lesion is a rare, benign retinal tumour that typically presents as white-yellow, opaque, and well circumscribed.Typically, the lesion is stable or may regress spontaneously.In light of the adjacent pigmentation zak maytum of the tumour and fr
Abstract Graphite in metasedimentary rocks of the Eoarchean Saglek-Hebron Gneiss Complex (copyright) is depleted in 13C and has been interpreted as one of the oldest traces of life on Earth.The variation in crystallinity of this oldest graphitic carbon could possibly confirm the effect of metamorphism on original biomass, but this is still unexplor
The construction and operation of the Three Gorges-Gezhou cascade water conservancy and hydropower projects has dramatically changed downstream water level fluctuations.Remnant populations of Myricaria laxiflora, an aquatic endangered plant, have been severely affected by the regulated water level fluctuations.In this study, the impact of regulated