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Medicine

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Are Delays in Colon Cancer Treatment Safe?

This Canadian study provides further evidence that even surgical treatment delays of several weeks do not adversely influence survival. Patients who require further consultations or investigations preoperatively may safely have their surgery moderately delayed in order to minimize their perioperative risk without any evidence that this will compromise treatment outcomes.

Science

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Berkeley, LBNL, Berkeley Lab, Lawrence Berkeley National Laboratory, X-Ray, X-rays, Synchrotron, Advanced Light Source, Fuel Cell, Fuel Cells, Hydrogen, hydrogen fuel cell, Energy, Renewable Energy

Fuel Cell X-Ray Study Details Effects of Temperature and Moisture on Performance

To find the right balance of moisture and temperature in a specialized type of hydrogen fuel cell, Berkeley Lab scientists have used X-rays to explore the inner workings of its components at tiny scales.

Science

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Microscopy, high resolution imaging

Mirror Image: Researchers Create Higher-Quality Pictures of Biospecimens

Hari Shroff, Ph.D., chief of the National Institute of Biomedical Imaging and Bioengineering’s lab section on High Resolution Optical Imaging (HROI), and his team have spent the last few years developing optical microscopes that produce high resolution images at very high speed. After his lab develops these new microscopes, they release the plans and software for free, so any researcher can replicate the advances made at NIH. This latest microscope builds on previous improvements that Shroff’s lab had made with selective plane illumination microscopy (SPIM).

Medicine

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Alzheimer's Disease, Dementia, Aging, Drug Target, Inflammation, Biomarker

Biomarker May Predict Early Alzheimer’s Disease

Researchers at SBP have identified a peptide that could lead to the early detection of Alzheimer’s disease (AD). The discovery, published in Nature Communications, may also provide a means of homing drugs to diseased areas of the brain to treat AD, Parkinson’s disease, as well as glioblastoma, brain injuries and stroke.

Science

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NASA, Hubble Space Telescope, Advanced Camera For Surveys, Supernova, Light Echo, SN 2014J, M82, Active Galaxy, Movie

Hubble Spots Expanding Light Echo Around Supernova

A movie assembled from more two years’ worth of Hubble images reveals an expanding shell of light from a supernova explosion sweeping through interstellar space three years after the stellar blast was discovered. The “echoing” light looks like a ripple expanding on a pond. The supernova, called SN 2014J, was discovered on Jan. 21, 2014.

Medicine

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Malaria, Parasite, Infection

Parasites Suck It Up

Depletion of a fatty molecule in human blood propels malaria parasites to stop replicating and causing illness in people and instead to jump ship to mosquitoes to continue the transmission cycle, according to a new study by an international research team.

Science

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Astrobiology, Biology, Extremophile, Extremophiles, Rocks, Geology, extreme environments, Extreme Environments Geosciences, Desert, Exoplanet

JHU Scientist Crowdsources Rocks Harboring Earthly “Extraterrestrials”

Crowdsourcing created an online photography archive, financed a British rock band’s tour and advanced a search for intelligent life on other planets. Now a biologist is hoping the approach can help her find rocks. But not just any rocks.

Science

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University of Vienna, Alice Auersperg, Cornelia Habl, University of Veterinary Medicine Vienna, Goffin cockatoo, NUT, tool-use, cognitive biologists, Parrot

The Key to a Nut

The Goffin's cockatoo is not a specialised tool user in the wild but has shown the capacity to invent and use different types of tools in captivity. Now cognitive biologists from the University of Vienna and the University of Veterinary Medicine Vienna tested these parrots in a tool use task, requiring the birds to move objects in relation to a surface. The animals had to choose the correct "key" to insert into a "keyhole" in a box, aligning its shape to the shape of a surface cutout inside the box during insertion. The parrots were not only able to select the correct key but also required fewer placement attempts to align simple shapes than primates in a similar study.

Medicine

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Sepsis: The Body’s Deadly Response to Infection

Although not as well-known as other medical conditions, sepsis kills more people in the United States than AIDS, breast cancer, or prostate cancer combined. Sepsis is body-wide inflammation, usually triggered by an overwhelming immune response to infection. Though doctors and medical staff are well-aware of the condition—it is involved in 1 in 10 hospital deaths—the condition is notoriously hard to diagnose. In this video, sepsis expert Sarah Dunsmore, a program director with the National Institute of General Medical Sciences (NIGMS), describes what sepsis is and how to recognize it, what kinds of patients are most at risk, and what NIGMS is doing to reduce the impact of this deadly condition.

Medicine

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Video of Blood Clot Contraction Reveals How Platelets Naturally Form Unobtrusive Clots

The first view of the physical mechanism of how a blood clot contracts at the level of individual platelets is giving researchers a new look at a natural process that is part of blood clotting. The team describes how specialized proteins in platelets cause clots to shrink in size.







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