Rational Method is a rather conservative method. One of the basic assumptions of the rational formula is that the rainfall intensity must be constant for an interval at least equal to the time of concentration. For long duration of rainfall, this assumption may not hold true.
The puzzle piece was first associated with Autism Awareness when it was used within the logo for National Autistic Society in the UK in 1963. The logo of the society was designed by a neurotypical parent of an Autistic child who was a member of th...
Autism is a complex developmental disorder distinguished by difficulties with social interaction, verbal and nonverbal communication, and behavioral problems, including repetitive behaviors and narrow focus of interest. Classic autism is one of several disorders categorized as autism spectrum disorders (ASD).