Ammonia is considered a potential carbon-free alternative to fossil fuels.However, its unfavorable combustion characteristics and propensity to form fuel NOx pose a challenge for its use as fuel for internal combustion engines.The high-pressure dual fuel (HPDF) direct-injection of ammonia could offer the potential to reduce ammonia slip and decreas

Sloping croplands in karst areas of Southwest China usually contain a multitude of rock outcrops with diameters larger than 25 cm.Rock outcrops and spatial location have substantial effects on soil properties and thus likely affect soil erodibility.Moreover, rock outcropping is a indicator of rocky desertification and has an important impact on soi

Kisspeptin peptides play major roles in the regulation of reproduction and puberty onset in mammals.While most mammals only have one kisspeptin gene, other jawed vertebrates present two or three genes.Recent data also revealed the presence of two genes in lampreys (jawless vertebrates).However, apart from easton speed comp -13 gene sequence data, t

Deacetylases of the Sir2 family regulate lifespan and response to stress.We have examined the evolutionary history of Sir2 and Hst1, which arose by gene duplication in budding yeast and which participate in distinct mechanisms of gene repression.In Saccharomyces cerevisiae, Sir2 interacts with the SIR complex to generate long-range silenced chromat