Barack Hussein Obama II was born on August 4, 1961, in Honolulu, Hawaii. His mother, Ann Dunham, was born on an Army base in Wichita, Kansas, during World War II. After the Japanese attack on Pearl Harbor, Dunham's father, Stanley, enlisted in the military and marched across Europe in General George Patton's army.
Best Answer: It refers to the heat change fora reaction. Means that the reaction absorbs heat from and emits heat to the environment. A delta H rxn with a positive sign means that heat is taken from the environment.Such a reaction is termed as an endothermic reaction. A delta H rxn with a negative sign means that heat is emitted or given to the environment.Such a reaction is termed as an exothermic reaction.
According to an one article, a doctor was quoted as saying the following. Only 7% of the US population tests positive for the HLA-B27 gene; This gene, found in only in persons with Rh-neg blood, can trigger the immune system to operate overtime at WARP SPEED in times of medical emergency. HLA-B27 can cause rheumatic problems, like arthritis.