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Basics: Infringement and Fair Use The Yet copyright laws also provide that the rights of copyright owners are subject to the doctrine of " - the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes (usually certain types of educational copying are allowed) - the nature of the copyrighted work (mostly originals made for commercial reasons are less protected than their purely artistic counterparts) - the amount and substantiality of the portion used in relation to the copyrighted work as a whole - the effect of the use upon the potential market for or value of the copyrighted work (as a general rule copying may be permitted if it is unlikely to cause economic harm to the original author) Examples of activities that may be excused as fair use include: providing a quotation in a book review; distributing copies of a section of an article in class for educational purposes; and imitating a work for the purpose of parody or social commentary. |
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atbash Atbash is regarded as the simplest way of encryption. It is nothing else than a reverse-alphabet. a=z, b= y, c=x and so on. Many different nations used it in the early times of writing. for further explanations see: |
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