Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
RVCA (pronounced: rue-cah) is a clothing company based in Costa Mesa, California. The logotype for RVCA portrays the letter A without a crossbar. This leaves it looking like a lambda .The 'V' looking character in RVCA name is a 'U'. The 'U' is written in traditional Roman script, and thus appears as a 'V'.
Out-of-hospital cardiac arrest (OHCA) is a leading cause of death among adults in the United States. Approximately 300,000 OHCA events occur each year in the United States; approximately 92% of persons who experience an OHCA die (1). An OHCA is defined as cessation of cardiac mechanical activity that is confirmed by the absence of signs of circulation and that occurs outside of a hospital setting (1,2).