Imagine if Earth's history had a mystery novel, and one of its biggest unsolved puzzles was: Where did all the nitrogen go?

Key Laboratory of Photochemical Conversion and Optoelectronic Materials, New Cornerstone Science Laboratory, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, ...

College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, ...

Arkansas became the fifth state to authorize nitrogen hypoxia as a method of execution Tuesday, after Republican Gov. Sarah Huckabee Sanders signed legislation codifying the controversial method ...

When Louisiana carries out the execution of Jessie Hoffman on March 18, he will be strapped to a gurney, fitted with a gas mask and forced to breathe in nitrogen gas until his heart stops.

As there is considerable interest in the electronic structure of the different modifications of titanium trichloride, we investigated the optical properties of α-,β- and γ-TiCl 3.