The name of my talk is Pure Science and Applied Science, and the idea I would like to sell to you today is that there is no such thing as “pure” or “applied” science. In other words, there is such a thing as science, but there is no difference between pure and applied science. Science is one entity and cannot be separated into different categories. In order to back that up, I would like to tell...

iranian crack is a new form of narcotic substance that has found widespread prevalence iniran in the past years. crack only nominally resembles crack cocaine as it is widely different inits clinical signs. thus the present study aims to quantify the chemical combination of this drug.the samples included 18 specimen of crack collected from different zones of tehran, iran.all specimens were in th...

The musical use of low and ultra-low frequencies is closely related to the twentieth-century development of electronic and digital media. In historical respect, this development continues the steady exploration of the lower ranges of musically significant sound which started with the rise of polyphony. This paper focuses on the consequences this sonic expansion has for the aesthetics of music. ...

we present a case of caustic ingestion by a 1.5-year-old boy. the caustic agent was drain opener which is a strong alkaline substance. children in iran and many other countries are still exposed to not “child proof” (child resistant packaging) toxic substance containers. ingestion of caustic agents may lead to necrosis, perforation, and strictures. substances that are ingested more frequently a...