Catálogo de publicaciones - revistas

<jats:p> A <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/feature/data/books/brl5962.dtl">listing of books received</jats:ext-link> at <jats:italic>Science</jats:italic> during the week ended 01 January 2010. </jats:p>

<jats:p> Although very different, Richard Foreman's play <jats:italic>Idiot Savant</jats:italic> , Cirkus Cirkör's <jats:italic>Inside Out</jats:italic> , and Philip Glass's opera <jats:italic>Kepler</jats:italic> each drew at least some of their themes from science. </jats:p>

<jats:p>Damage to ecosystems and threats to human health and the lack of effective mitigation require new approaches to mining regulation.</jats:p>

<jats:p>Histone phosphorylation controls the chromosomal localization of a protein family that functions in chromosome segregation during cell division.</jats:p>

<jats:p>High-temperature, high-pressure measurements combined with observation and calculations are providing a better picture of Earth's lower mantle.</jats:p>

<jats:p>The worldwide losses of honey bee colonies continue to puzzle researchers and the beekeeping industry.</jats:p>

<jats:p>Ecologically common species play key roles in terrestrial and marine ecosystems, yet are also the main victims of habitat loss, ecosystem degradation, and overexploitation.</jats:p>

<jats:p>A form of electron ordering similar to that of molecules in liquid crystals has been observed in an iron-based superconductor.</jats:p>

<jats:title>CRISPR Defenses</jats:title> <jats:p> Prokaryotes can be infected by parasites and pathogens and, like eukaryotes, have evolved systems to protect themselves. <jats:bold>Horvath and Barrangou</jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="167" related-article-type="in-this-issue" vol="327" xlink:href="10.1126/science.1179555">167</jats:related-article> ) review a recently discovered prokaryotic “immune system” characterized by CRISPR—clustered regularly interspaced short palindromic repeats—found in most archaeal and many bacterial species. CRISPR loci harbor short sequences captured from viruses and invasive genetic elements. These sequences are transcribed, and the RNA is cleaved into short CRISPR RNAs (crRNAs) by one of a family of CRISPR-associated (cas) proteins. These crRNAs direct other cas family proteins to homologous nucleic acid targets to effect their destruction. Through its ability to impede the spread of specific nucleic acid sequences, the CRISPR/Cas systems might be exploited to block the dissemination of antibiotic-resistance markers. </jats:p>