English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present a strict separation between the class of "mismatch free"self-assembly systems and general aTAM systems. Mismatch free systems are thosesystems in which concurrently grown parts must always agree with each other.  Tile self-assembly is a model of the formation of crystal growth, in which alarge number of particles concurrently and selectively stick to each other,forming complex shapes and structures. It is useful in nanotechnologies, andmore generally in the understanding of these processes, ubiquitous in naturalsystems.  The other property of the local assembly process known to change the power ofthe model is cooperation between two tiles to attach another. We show thatdisagreement (mismatches) and cooperation are incomparable: neither can be usedto simulate the other one.  The fact that mismatches are a hard property is especially surprising, sinceno known, explicit construction of a computational device in tile assembly usesmismatches, except for the recent construction of an intrinsically universaltileset, i.e. a tileset capable of simulating any other tileset up torescaling. This work shows how to use intrinsic universality in a systematicway to highlight the essence of different features of tile assembly.  Moreover, even the most recent experimental realizations do not usecompetition, which, in view of our results, suggests that a large part of thenatural phenomena behind DNA self-assembly remains to be understoodexperimentally.

It's a Tough Nanoworld: in Tile Assembly, Cooperation is not (strictly) more Powerful than Competition