Practices performed to prevent the spread of infection; clean tequnique

Divide the word into word parts. define the word parts, then define the term. example: spondylolisthesis = spondyl/o vertebra, -listhesis slipping; slipping of a vertebra, forward dislocation of a vertebra. - arthroplasty - syndactylism - osteomyelitis - electromyography - ankylosis - osteoclasis

Rectangle pqrs has vertices p(1, 4), q(6, 4), r(6, 1), and s(1, 1). without graphing, find the new coordinates of the vertices of the rectangle after a reflection over the x-axis and then another reflection over the y-axis.

What is crystallographic data processing and structure determination? what are the physical infrastructures of x-ray crystallographic structural biology? who can tell me detailed information? any would be appreciated. in advance!