Sexually transmitted diseases (STDs) remain a major public health challenge in the U.S., especially among women, who. disproportionately bear the long-term consequences of STDs. For example, each year untreated STDs cause infertility in.
Chemically known as âcalcium sulfate dihydrate,â gypsum contains calcium, sulfur bound to oxygen, and water. Gypsum is an abundant mineral and takes forms including alabasterâa material used in decoration and construction as far back as ancient Egypt.hemically known as âcalcium sulfate dihydrate,â gypsum contains calcium, sulfur bound to oxygen, and water. Gypsum is an abundant mineral and takes forms including alabasterâa material used in decoration and construction as far back as ancient Egypt.
Drywall â also known as gypsum board or wallboard â is a naturally fire-resistant, paper-covered sheet of natural or synthetic gypsum used to build interior walls and ceilings in most homes. PURPLEÂ® drywall is unique because it resists moisture, mold and mildew. In addition, most PURPLEÂ® drywall products also stand up to scratches, scuffs, dents and sound.