aDivision of Systems Virology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan bFaculty of Liberal Arts, Sophia University, Tokyo, ...

The first signs and characteristics of autism (also known as autism spectrum disorder or ASD) can vary widely and appear at different times. Some people on the autism spectrum show signs within the ...

Department of Earth Sciences, University of Southern California, Los Angeles, California 90089, USA Harpetid and trinucleid trilobites share a similar and unusual morphology, the most striking feature ...

fizkes / Getty Images A monopolistic market is a market structure with the characteristics of a pure monopoly. A monopoly exists when one supplier provides a particular good or service to many ...