effective screening area
71Crawford Central School District — Crawford Center School District Address 11280 Mercer Pike Meadville, Pennsylvania, Crawford, 16335 …
72Bohr model — In atomic physics, the Bohr model created by Niels Bohr depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus mdash;similar in structure to the solar system, but with… …
73Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …
74environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
75Operation Lam Son II — Part of Vietnam War American military band performing in Tan Phuoc Khanh during the fair …
76Osteoporosis — Classification and external resources A stooped back is often the result of osteoporosis. ICD 10 M …
77Hand grenade — M67 fragmentation grenade, a widely used modern hand grenade. A hand grenade is any small bomb that can be thrown by hand. Hand grenades are classified into three categories, explosive grenades, chemical and gas grenades.[1] Explosive grenades… …
78Domestic violence — Domestic disturbance redirects here. For the 2001 film, see Domestic Disturbance. Domestic violence Classification and external resources eMedicine article/805546 MeSH …
79X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid …
80Atrial fibrillation — | MeshID = D001281 Atrial fibrillation (AF or afib) is a cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart. It can often be identified by taking a pulse and observing that the heartbeats don t… …
