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n2doc

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Home country: USA
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Member since: Tue Feb 10, 2004, 12:08 PM
Number of posts: 44,357

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Environmental Scientist

Journal Archives

Non-invasive ultrasound restores memory in Alzheimer's mice

A potential method of treating Alzheimer's disease using ultrasound is being hailed as a "breakthrough."

A team of researchers at the University of Queensland's Queensland Brain Institute Clem Jones Centre for Ageing Dementia Research have successfully restored memory function in mice using the drug-free, non-invasive technology to break down the neurotoxic amyloid plaques that cause memory loss and loss of cognitive function.

"We're extremely excited by this innovation of treating Alzheimer's without using drug therapeutics," said CJCADR director Professor Jürgen Götz.

"The word 'breakthrough' is often misused, but in this case I think this really does fundamentally change our understanding of how to treat this disease, and I foresee a great future for this approach."

To test the treatment, first the team deposited amyloid-β into the brains of the test mice -- the peptide that has been implicated with effecting Alzheimer's dementia. This creates a mouse model of the disease that can be used to test treatments.

more

http://www.cnet.com/news/non-invasive-ultrasound-restores-memory-in-alzheimers-mice/

Star cluster NGC 6193 and nebula NGC 6188 (Big Space Image)



This image, taken by OmegaCAM on the VLT Survey Telescope at Paranal Observatory, shows a section of the Ara OB1 stellar association. In the centre of the image is the young open cluster NGC 6193, and to the right is the emission nebula NGC 6188, illuminated by the ionising radiation emitted by the brightest nearby stars.

Thursday TOON Roundup 4- The Rest


Repubs







VA



Saudi






Sports




Apple





Grammar



Thursday TOON Roundup 3- Clintons


















Thursday Toon Roundup 2- Haters












Thursday Toon Roundup 1- Letter Treason





















Enceladus may have ocean with the right ingredients for life, scientists say

Scientists say they’ve discovered evidence of a watery ocean with warm spots hiding beneath the surface of Saturn’s icy moon Enceladus. The findings, described in the journal Nature, are the first signs of hydrothermal activity on another world outside of Earth – and raise the chances that Enceladus has the potential to host microbial life.

Scientists have wondered about what lies within Enceladus at least since NASA’s Cassini spacecraft caught the moon spewing salty water vapor out from cracks in its frozen surface. Last year, a study of its gravitational field hinted at a 10-kilometer-thick regional ocean around the south pole lying under an ice crust some 30 to 40 kilometers deep.

Another hint also emerged about a decade ago, when Cassini discovered tiny dust particles escaping Saturn’s system that were nanometer-sized and rich in silicon.

“It’s a peculiar thing to find particles enriched with silicon,” said lead author Hsiang-Wen Hsu, a planetary scientist at the University of Colorado, Boulder. In Saturn’s moons and among its rings, water ice dominates, so these odd particles clearly stood out.

more
http://www.latimes.com/science/sciencenow/la-sci-sn-enceladus-water-ocean-hydrothermal-activity-silica-20150311-story.html

Sun emits X2.2-class Flare



Sun Emits an X2.2 Flare on March 11, 2015
The sun emitted a significant solar flare, peaking at 12:22 p.m. EDT on March 11, 2015. NASA’s Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.

This flare is classified as an X2.2-class flare. X-class denotes the most intense flares, while the number provides more information about its strength. An X2 is twice as intense as an X1, an X3 is three times as intense, etc.

https://www.flickr.com/photos/gsfc/16599619730/in/photostream/

Sol, that's so rude!



Outburst on the Sun
The Sun blew out a coronal mass ejection along with part of a solar filament over a three-hour period (Feb. 24, 2015). While some of the strands fell back into the Sun, a substantial part raced into space in a bright cloud of particles (as observed by the SOHO spacecraft). The activity was captured in a wavelength of extreme ultraviolet light. Because this occurred way over near the edge of the Sun, it was unlikely to have any effect on Earth.

https://www.flickr.com/photos/gsfc/16599806139/

Mike Luckovich Toon- The GOP just wrote me a letter...

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