The exceeded food causes the growth of algae, bacteria, parasites, viruses and other microorganisms, making the water less clear and full of bad odors. A UV light can clean the water up, keeping a ...

School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, State Key Laboratory of Pulp and Paper Engineering, South China University of ...

Children are particularly vulnerable to UV light as their eyes are still developing and they spend more time outdoors than adults. Ineffective sunglasses can cause serious damage to a child’s ...

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China Zhejiang Key Laboratory of Alternative ...

Moroccan agates from Sidi Rahal occur within Triassic basaltoids as lens-shaped specimens in sizes up to 25 cm. Their coloration and internal structure are quite specific and characteristic for this ...