منابع مشابه
Watson-Crick D0L Systems
D0L systems constitute the simplest and most widely studied type of Lindenmayer systems. They have the remarkable property of generating their language as a (word) sequence and, consequently, are very suitable for modeling growth properties. In this paper a new type of D0L systems is introduced, where the parallelism presented in L systems is combined with the paradigm of (Watson-Crick) complem...
متن کاملRestricted deterministic Watson-Crick automata
In this paper, we introduce a new model of deterministic Watson-Crick automaton namely restricted deterministic WatsonCrick automaton which is a deterministic Watson-Crick automaton where the complementarity string in the lower strand is restricted to a language L. We examine the computational power of the restricted model with respect to L being in different language classes such as regular, u...
متن کاملMulti-head Watson-Crick automata
Inspired by multi-head finite automata and Watson-Crick automata in this paper, we introduce a new structure namely multi-head Watson-Crick automata where we replace the single tape of multi-head finite automaton by a DNA double strand. The content of the second tape is determined using a complementarity relation similar to Watson-Crick complementarity relation. We establish the superiority of ...
متن کاملWatson-Crick Quantum Finite Automata
one-way quantum finite automata are reversible in nature, which greatly reduces its accepting property. In fact, the set of languages accepted by one-way quantum finite automata is a proper subset of regular languages. In this paper, we replace the tape head of one-way quantum finite automata with DNA double strand and name the model Watson-Crick quantum finite automata. The noninjective comple...
متن کاملAnnotated version of Watson and Crick paper
http://www.exploratorium.edu/origins/coldspring/ideas/printit.html[9/24/2010 6:13:14 AM] Figure 1 This figure is purely diagrammatic (8). The two ribbons symbolize the two phophate-sugar chains, and the horizonal rods the pairs of bases holding the chains together. The vertical line marks the fibre axis. Print this page If the link above doesn't work, try typing Ctrl + P on a PC or Apple + P on...
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ژورنال
عنوان ژورنال: Nature
سال: 2011
ISSN: 0028-0836,1476-4687
DOI: 10.1038/470472a