Profile cover photo
Profile photo
Erik Driscoll
8,566 followers -
Editor at NeuroscienceNews.com.
Editor at NeuroscienceNews.com.

8,566 followers
About
Erik's interests
View all
Erik's posts

Post has shared content
A spacewalk can be viewed live starting at 5:30 am EST on January 13.
Tomorrow, two astronauts will venture outside the International Space Station for the second of two spacewalks to upgrade power systems. Want to watch? Of course you do! Tune in live starting at 5:30 a.m. EST, with spacewalk activities beginning at 7 a.m.: http://nasa.tumblr.com/post/155449153014/back-to-back-friday-spacewalks
Photo

Post has attachment
Stone tools and mastodon bones occur in an undisturbed geological context at the Page-Ladson site, Florida. Seventy-one radiocarbon ages show that ~14,550 calendar years ago (cal yr B.P.), people butchered or scavenged a mastodon next to a pond in a bedrock sinkhole within the Aucilla River. This occupation surface was buried by ~4 m of sediment during the late Pleistocene marine transgression, which also left the site submerged. Sporormiella and other proxy evidence from the sediments indicate that hunter-gatherers along the Gulf Coastal Plain coexisted with and utilized megafauna for ~2000 years before these animals became extinct at ~12,600 cal yr B.P. Page-Ladson expands our understanding of the earliest colonizers of the Americas and human-megafauna interaction before extinction.

Post has attachment

Post has attachment
“It’s a very solid paper experimentally,” says evolutionary genomicist B. Franz Lang of the University of Montreal in Canada. “If you’d like me to bet, I’d give them 90% probability that they are correct.” To strengthen the case, he says, researchers need to perform a detailed microscopic analysis to confirm the absence of the organelles. Evolutionary biochemist Mark van der Giezen of the University of Exeter in the United Kingdom also wants to see further evidence that Monocercomonoides doesn’t harbor rudimentary mitochondria. Nonetheless, he says, the study expands our view of eukaryotes’ capabilities. “It shows that eukaryotic life is more flexible than what the textbooks say.”

Post has attachment
What spider is this?

It was caught indoors near Houston, Texas, USA.

#spiders #arachnology #entomology #biology #spidertrolls
Photo

Post has shared content
New tabletop detector “sees” single electrons

MIT physicists have developed a new tabletop particle detector that is able to identify single electrons in a radioactive gas.

As the gas decays and gives off electrons, the detector uses a magnet to trap them in a magnetic bottle. A radio antenna then picks up very weak signals emitted by the electrons, which can be used to map the electrons’ precise activity over several milliseconds.
A new detector developed by researchers from the MIT Department of Physics “sees” single electrons and could help measure neutrino mass: http://mitne.ws/1EnRgLa

#physics  
Photo

Post has attachment
NASA launch of the Magnetospheric Multiscale (MMS) mission is only a few minutes away. Catch it live, or not.

Post has attachment
Smartphone, Finger Prick, 15 Minutes, Diagnosis—Done!

We need more of this.

 "A team of researchers, led by Samuel K. Sia, associate professor of biomedical engineering at Columbia Engineering, has developed a low-cost smartphone accessory that can perform a point-of-care test that simultaneously detects three infectious disease markers from a finger prick of blood in just 15 minutes. The device replicates, for the first time, all mechanical, optical, and electronic functions of a lab-based blood test. Specifically, it performs an enzyme-linked immunosorbent assay (ELISA) without requiring any stored energy: all necessary power is drawn from the smartphone. It performs a triplexed immunoassay not currently available in a single test format: HIV antibody, treponemal-specific antibody for syphilis, and non-treponemal antibody for active syphilis infection."

....

 Sia estimates the dongle will have a manufacturing cost of $34, much lower than the $18,450 that typical ELISA equipment runs.

More on the page linked.

Post has shared content
Oh wow! .. As if you could reach out and touch it! Comet 67P from just 8 km from the surface.

More close-up images:
http://www.esa.int/Our_Activities/Space_Science/Rosetta/Highlights/Comet_close-ups

Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

#Rosetta #67P
Photo

Post has attachment
There's my Chippy

A set of three observations with the orbiter's High Resolution Imaging Science Experiment (HiRISE) camera shows Beagle 2 partially deployed on the surface of the planet, ending the mystery of what happened to the mission more than a decade ago. They show that the lander survived its Dec. 25, 2003, touchdown enough to at least partially deploy its solar arrays.
Wait while more posts are being loaded