Have you ever noticed cars with mysterious green valve stem caps on their tires? If you have, you may wonder why some people choose to use them. Don't worry — a lot of people have the same ...

The function of many biologically active molecules requires the presence of carbon-nitrogen bonds in strategic positions. The biosynthetic pathways leading to such bonds can be bypassed through ...

Blood urea nitrogen (BUN) is a blood test performed as a marker of kidney function. It is part of the basic or comprehensive metabolic panel done for health screening. It is also used to monitor the ...

Grayson was pronounced dead at 6:33 p.m. Alabama began using nitrogen gas earlier this year to carry out some executions. The method involves placing a respirator gas mask over the person’s face ...

A federal judge has ruled that Alabama—and the nation’s—third execution using nitrogen gas can go forward later this month. The judge also rejected the inmate’s request to be given ...

Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and ...

Like two other death row inmates previously executed by nitrogen, Grayson shook at times before taking a periodic series of gasping breaths. Governor Kay Ivey said she was praying for the victim ...

In a highly controversial move, Alabama Death Row inmate Carey Dale Grayson was executed by nitrogen hypoxia, marking only the third-ever execution using this method. On Thursday evening ...