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RCas9: A programmable RNA editing tool

A powerful scientific tool for editing the DNA instructions in a genome can now also be applied to RNA, the molecule that translates DNA’s genetic instructions into the production of proteins. A team of researchers with Berkeley Lab and the University of California (UC) Berkeley has demonstrated a means by which the CRISPR/Cas9 protein complex can be programmed to recognize and cleave RNA at sequence-specific target sites.

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New map exposes previously unseen details of seafloor

Accessing two previously untapped streams of satellite data, scientists at Scripps Institution of Oceanography at UC San Diego and their colleagues have created a new map of the world’s seafloor, creating a much more vivid picture of the structures that make up the deepest, least-explored parts of the ocean. Thousands of previously uncharted mountains rising from the seafloor and new clues about the formation of the continents have emerged through the new map, which is twice as accurate as the previous version produced nearly 20 years ago.

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‘Cloaking’ device uses ordinary lenses to hide objects across range of angles

Inspired perhaps by Harry Potter’s invisibility cloak, scientists have recently developed several ways—some simple and some involving new technologies—to hide objects from view. The latest effort, developed at the University of Rochester, not only overcomes some of the limitations of previous devices, but it uses inexpensive, readily available materials in a novel configuration.

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Scientists discover new poison dart frog species in Donoso, Panama

A bright orange poison dart frog with a unique call was discovered in Donoso, Panama, and described by researchers from the Smithsonian Tropical Research Institute and the Universidad Autónoma de Chiriquí in Panama, and the Universidad de los Andes in Colombia. In the species description published this week in Zootaxa, it was named Andinobates geminisae for Geminis Vargas, “the beloved wife of [coauthor] Marcos Ponce, for her unconditional support of his studies of Panamanian herpetology.”

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Program predicts placement of chemical tags that control gene activity

Biochemists working at the University of California, San Diego, have developed a program that predicts the placement of chemical marks that control the activity of genes based on sequences of DNA. They describe their analysis and report results from its application to human embryonic cells in a paper published in Nature Methods online September 21.

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A two generation lens: Current state policies fail to support families with young children

Recent two-generation approaches to reducing poverty that help children and their parents are receiving increasing attention from researchers, advocates, and foundations. By combining education and training for parents to enable them to move to jobs that offer a path out of poverty with high-quality early care and education for children, these programs aim to improve the life opportunities of both

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Final pieces to the circadian clock puzzle found

Researchers at the UNC School of Medicine have discovered how two genes – Period and Cryptochrome – keep the circadian clocks in all human cells in time and in proper rhythm with the 24-hour day, as well as the seasons. The finding, published today in the journal Genes and Development, has implications for the development of drugs for various diseases such as cancers and diabetes, as well as conditions such as metabolic syndrome, insomnia, seasonal affective disorder, obesity, and even jetlag.

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How an ancient vertebrate uses familiar tools to build a strange-looking head

If you never understood what “ontogeny recapitulates phylogeny” meant in high school, don’t worry: biologists no longer think that an animal’s “ontogeny”, that is, its embryonic development, replays its entire evolutionary history. Instead, the new way to figure out how animals evolved is to compare regulatory networks that control gene expression patterns, particularly embryonic ones, across species.

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50 million year old mite attached to ant head found in piece of amber

(Phys.org) —A small team of researchers with members from several countries has identified the oldest known instance of a type of mite fossil. In their paper published in the journal Biology Letters, the team describes how they obtained a piece of amber with an ant embedded inside of it along with a mite that was attached to the ant’s head, and what their work revealed.

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High-performance computing crossing the barriers between clouds achieved

The Information Technology Research Institute of the National Institute of Advanced Industrial Science and Technology has developed a technology with which once an environment to perform high-performance computing has been established, a virtual cluster-type computer can easily be built on a different cloud and made available for immediate use.

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