There are three patterns of acute sinusitis:  Persistent cold symptoms. If symptoms get better in 10 days, the infection is probably viral. âBut if thereâs no improvement after 10 days, itâs likely to be bacterial at that stage,â Dr. Rosenfeld said.
Electric Tools Employees using electric tools must be aware of several dangers. Among the most serious hazards are electrical burns and shocks. Electrical shocks, which can lead to injuries such as heart failure and burns, are among the major hazards associated with electric-powered tools.
Page 74. WORKING AROUND CRANES. A crane is one of the most versatile and important pieces of equipment usually found on a. construction job. It can be used to accomplish a lot of otherwise heavy lifting tasks. However, it. can also be one the most dangerous since it can lift heavy loads over large areas of a project. Today we will discuss some of the important safety points about working around cranes. Guide for Discussion