Carbon emissions from rural households in underdeveloped regions remain poorly understood compared to those in urban and developed areas. This study analyzes household carbon emissions in Xunyang County, China, demonstrating that food-related emissions dominate across both farming and...

Due to the unique band structure of graphene, defects in graphene and graphene-based structures often lead to complicated electrical transport properties, even at a very low level. Herein, we found a novel phase transition from semiconducting to metallic behaviors (a negative temperature...