منابع مشابه
Screened DNA packs faster.
Despite being negatively charged, DNA can be compacted to almost crystalline densities inside virus capsids. However, how this is achieved has been debated for years. Most theoretical models predict that attractive DNA–DNA interactions — such as those resulting from the screening effect of nearby positively charged molecules — would facilitate DNA packaging by countering the effects of DNA self...
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The great industrial importance of the streptomycetes has stimulated their genetic manipulation (1). The plasmid or phage vectors that have been developed require recombinant selection and screening procedures, which in Streptomyces can take several days and necessitate comparatively large volumes of cultures and reagents (4). To improve the situation, we have coupled a scaled-down procedure fo...
متن کاملBee screened
embryos with nuclei from human cells inserted into the eggs of either cows, pigs, sheep or other animals. When the issue was debated in Parliament, many leading scientists strongly supported such research. “Animal–human hybrid embryo research needs legal permission, good scientists and more funding,” says Evan Harris, the science spokesman for the Liberal Democrat Party. Many of those involved ...
متن کاملExecuting Query Packs in ILP
Inductive logic programming systems usually send large numbers of queries to a database. The lattice structure from which these queries are typically selected causes many of these queries to be highly similar. As a consequence, independent execution of all queries may involve a lot of redundant computation. We propose a mechanism for executing a hierarchically structured set of queries (a \quer...
متن کاملCommunicative Exploration with Robot Packs
Exploration is a core challenge for RoboCup Rescue. Socalled communicative exploration is a novel strategy for multi-robot exploration that unlike other approaches takes the limits of wireless communication systems into account. Here, previous results that where achieved for a team of robots linked to a basestation are significantly extended to also cover robot packs, i.e., multi-robot teams th...
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ژورنال
عنوان ژورنال: Nature Materials
سال: 2014
ISSN: 1476-1122,1476-4660
DOI: 10.1038/nmat4052