Abstract Graphite in metasedimentary rocks of the Eoarchean Saglek-Hebron Gneiss Complex (Canada) 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 unexplored.
Reef-building corals show a marked decrease in total species richness from the tropics to high latitude regions.Several hypotheses have been proposed to account for this pattern in the context of abiotic and biotic factors, including temperature thresholds, light limitation, aragonite saturation, nutrient or misbhv tank top sediment loads, larval d
Currently rail transit has no reliability qualification test standards yet.To verify whether the MTBF of LKJ meet the requirements, with the main working environment analysis of LKJ, comprehensive environmental conditions victory white camellia of six kinds of stress which consisted of temperature, humidity, vibration, shock, changes in voltage, su
Purpose: Hispanic residents of multiunit housing (MUH) are disproportionately exposed to secondhand (SHS) and thirdhand tobacco smoke (THS) from neighboring apartment units and common areas.Comprehensive legislation and voluntary policies are needed to protect residents from smoke.We developed a culturally tailored bilingual fotonovela to 1861 remi