This was one of the most secure hand ciphers used in the Second World War. It was used by both the Allies and the Axis, and served both well. Its main weakness was that if the attacker intercepted two ...

Andrew Bloomenthal has 20+ years of editorial experience as a financial journalist and as a financial services marketing writer. David Kindness is a Certified Public Accountant (CPA) and an expert in ...

Alu elements are the most successful transposons in humans. They are 300-bp non-coding sequences transcribed by RNA polymerase III (Pol III) and are expected to retrotranspose with the aid of reverse ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 98, No. 12 (Jun. 5, 2001), pp. 6759-6764 (6 pages) Tc1/mariner elements are able to transpose in species other ...

The recent DNA sequence determination of the human, mouse and rice genomes has highlighted the abundant and diverse nature of transposons; approximately 40% of the genomes are composed of repetitive ...