Though its history is tied to track, the product line for Atlas Model Railroad Co. has grown and diversified from Z to O ...

A new energy era has begun, linked to the new multipolar geopolitics. Understand the new era is greatly aided by seven abiding"certainties," plus one about technology.

An HO-3 policy is a form of home insurance that protects against property damage, legal liabilities and other expenses associated with unexpected disasters to the home. Most insurance companies' ...

New insights into the structures of glutamate receptor ion channels (iGluRs), combined with functional and biochemical data, can help us to understand how agonist binding triggers their activation and ...

Structure-based drug design is the design and optimization of a chemical structure with the goal of identifying a compound suitable for clinical testing — a drug candidate. It is based on knowledge of ...

For example, the atomic number of sodium is 11. Every sodium atom has 11 protons and 11 electrons. It has 11 positive charges and 11 negative charges. The mass number of an atom is its total number of ...