The computation of the weighted average number of shares requires restatement of the shares. outstanding before the stock dividend or split. The additional shares outstanding as a result of a stock. dividend or split are assumed to have been outstanding since the beginning of the year.
While the causes of autism are complex, it is abundantly clear that it is not caused by bad parenting. Dr. Leo Kanner, the psychiatrist who first described autism as a unique condition in 1943, believed that it was caused by cold, unloving mothers.
The exact causes of autism spectrum disorder (ASD) are unknown, although it is thought that several complex genetic and environmental factors are involved.The causes of ASD can be described in two ways:1  Primary ASD (also known as idiopathic ASD) â where no underlying factors can be identified to explain why ASD has developed. 2  Secondary ASD â where an underlying medical condition or environmental factor thought to increase the risk of ASD is identified.he causes of ASD can be described in two ways: 1  Primary ASD (also known as idiopathic ASD) â where no underlying factors can be identified to explain why ASD has developed. 2  Secondary ASD â where an underlying medical condition or environmental factor thought to increase the risk of ASD is identified.