Tech

Scientists at the University of California, Berkeley and Massachusetts General Hospital have identified a key region within the Cas9 protein that governs how accurately CRISPR-Cas9 homes in on a target DNA sequence, and have tweaked it to produce a hyper-accurate gene editor with the lowest level of off-target cutting to date.

NASA looked into Hurricane Maria and found that powerful convective storms within the hurricane were dropping heavy rainfall. Maria brought that heavy rainfall to Puerto Rico and made landfall on Sept. 20 at 6:15 a.m. EDT.

Key Takeaways:

Scientists used a wealth of new data from DNA sequencing tools to study the human microbiome in unprecedented depth and detail

The new information provides insights as to how microbes work in concert with each other, within specific individuals, across various sites in the body, and over time

HRL Laboratories, LLC, has made a breakthrough in metallurgy with the announcement that researchers at the famous facility have developed a technique for successfully 3D printing high-strength aluminum alloys -- including types Al7075 and Al6061 -- that opens the door to additive manufacturing of engineering-relevant alloys. These alloys are very desirable for aircraft and automobile parts and have been among thousands that were not amenable to additive manufacturing -- 3D printing -- a difficulty that has been solved by the HRL researchers.

Researchers at MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) have developed a new system that allows programmers to transplant code from one program into another. The programmer can select the code from one program and an insertion point in a second program, and the system will automatically make modifications necessary -- such as changing variable names -- to integrate the code into its new context.

Do you know how safe it is to use your finger as a security login? And have you wondered how your cell phone knows if your finger is real or a fake?

Michigan State University biometric expert Anil Jain and his team are working to answer these questions and solve the biggest problems facing fingerprint recognition systems today: how secure they are and how to determine whether the finger being used is actually a human finger.

Raw broccoli sprouts, a rich source of potential cancer-fighting compounds, have become a popular health food in recent years. But conventional heat treatment used to kill bacteria on produce can reduce levels of the broccoli sprouts' helpful phytochemicals. Now researchers report in ACS' Journal of Agricultural and Food Chemistry that high pressure processing could wipe out harmful bacteria while maintaining high concentrations of its health-promoting ingredients.

Heart disease and heart-related illnesses are a leading cause of death around the world, but treatment options are limited. Now, one group reports in ACS Nano that encapsulating stem cells in a nanogel could help repair damage to the heart.

New research indicates that fish may adapt their behaviour to defend against parasite infection. The findings are published in the Journal of Zoology.

When investigators studied Atlantic salmon, clear differences in parasite load existed between behaviourally-modified fish and those able to exhibit the normal repertoire of behaviours. Normal salmon displayed greater frequencies of surface behaviours (jumping and rolling) and less swimming activity compared with behaviourally-impaired individuals.

A new Biological Reviews study provides a comprehensive assessment of how changes to wetlands affect animals, and the authors use their findings to provide recommendations for managing wetlands to maximise their biodiversity.