Have you ever thought about the alphanumeric link often at end of a reference? What is purpose this, and why it now required with references to journal articles in most reference styles? That called digital object identifier, or DOI, may be important part for discovering, managing, linking scholarly content objects. The DOI unique string assigned other that exist wholly partially form. DOIs act...

InterProScan [E. M. Zdobnov and R. Apweiler (2001) Bioinformatics, 17, 847-848] is a tool that combines different protein signature recognition methods from the InterPro [N. J. Mulder, R. Apweiler, T. K. Attwood, A. Bairoch, A. Bateman, D. Binns, P. Bradley, P. Bork, P. Bucher, L. Cerutti et al. (2005) Nucleic Acids Res., 33, D201-D205] consortium member databases into one resource. At the time...

(1) For all real numbers a, b such that max(a,b)≤ a holds max(a,b) = a. (2) For all real numbers a, b, c, d holds max(a+ c,b+d)≤ max(a,b)+max(c,d). (3) For all real numbers a, b, c, d, e, f such that a ≤ b + c and d ≤ e + f holds max(a,d) ≤ max(b,e)+max(c, f ). (4) For all finite sequences f , g holds domg ⊆ dom( f a g). (5) For all finite sequences f , g such that len f < i and i≤ len f + leng...

In the 1960s, Joseph D. Novak (1993) at Cornell University began to study the concept mapping technique. His work was based on the theories of David Ausubel (1968), who stressed the importance of prior knowledge in being able to learn about new concepts. Novak concluded that "Meaningful learning involves the assimilation of new concepts and propositions into existing cognitive structures." A co...