Posted: 4/26/2015
http://news.sciencemag.org/biology/2015/04/eagle-versus-porcupine-camera-snaps-painful-face (“Eagle versus porcupine: Camera snaps a painful face-off”; porcupine quills appear to contain antibiotics.)
http://spectrum.ieee.org/tech-talk/telecom/wireless/gigahertz-antenna-on-a-chip (“Now researchers have found a way to reduce the size of GHz antennas by modifying an existing technique, the use of antennas made from a dielectric or insulating material instead of a conductor. … For their experiment the researchers used piezoelectric filters that consist of two interdigitated contacts deposited on a piezoelectric film, devices similar to crystal frequency filters now used in cell phones.”)
http://spectrum.ieee.org/tech-talk/biomedical/devices/new-clues-how-does-a-brain-pacemaker-control-parkinsons-symptoms (De Hemptinne and colleagues had previously discovered that people with Parkinson’s disease have an abnormal amount of synchronicity between low-frequency beta waves and high-frequency gamma waves. Specifically, the beta waves’ phase correlated with the gamma waves’ amplitude. In this new study, the researchers showed that DBS [deep brain stimulation] reduces this synchronization.)
http://spectrum.ieee.org/tech-talk/aerospace/military/boeing-files-patent-for-electromagnetic-arc-generator-to-protect-against-explosive-shockwaves (“We’re at the point where physical barrier technologies are capable of stopping most projectile weapons, so predictably, weapons that rely on shockwaves (that can pass through physical barriers) are becoming more prevalent. In response to this, Boeing has filed a patent on a system that can mitigate or prevent damage from an incoming shockwave, using electromagnetic arc generators.”)
http://www.rsc.org/chemistryworld/2015/03/graphene-sandwich-turns-water-square-crystals (“Previously, 17 phases of stable ice were known to exist – all with their own characteristic molecular arrangement, packing density and symmetry. Unusually, the newly discovered square ice has a symmetry that's completely alien to water molecules and different from all other known ices.”. The miracle of water)
http://www.scientificamerican.com/article/hair-regrowth-discovery-suggests-skin-cells-communicate-like-bacteria/ (“When a researcher at the University of Southern California and his colleagues plucked 200 hairs from mice in a specific pattern in a confined area—ensuring that many neighboring hairs were pulled—more than 1,000 hairs grew back in their place, including some beyond the plucked region. (... Cell.
… It appears that hundreds of affected hair follicles released chemical signals relaying distress. Then, once enough neighboring cells sent out similar chemical flares, sensors on the skin detected the messages and took collective action: Incredibly, those messages induced the regeneration of as much as five times the amount of replacement hair.
If quorum sensing was behind this action, as the research team suggests, it would represent some of the first evidence to date that this phenomenon occurs in animal cells.”)
http://www.scientificamerican.com/article/russian-fireball-s-origins-found/ (Why are humans worrying about the Global Warming hoax? “The Kola fireball was spotted on April 19, 2014, as it lit up the night sky above the Kola Peninsula near the Finnish-Russian border. Its orbit is "disturbingly similar" to the asteroid 2014 UR116, slated to pass by the moon in 2017, the study authors said.”)
http://www.rsc.org/chemistryworld/2015/03/opossum-peptide-antivenom-snake-bites (“An antidote based on a protein found in the blood of opossums could offer an effective low-cost treatment for snake bites, researchers in the US have found.”)
http://news.sciencemag.org/biology/2015/04/plaque-busting-nanoparticles-could-help-fight-tooth-decay (“To build their nanoparticles, the researchers assembled spheres of polymers composed of two segments with different characteristics. The outer segments are positively charged, allowing the spheres to attach to negatively charged sites of both the plaque biofilms and tooth enamel. The inner core reacts to high acidity in the mouth, which loosens up the nanospheres and preferentially releases their contents—the antibacterial drug farnesol—in decay-prone regions where it’s needed most.”)
http://www.sciencedaily.com/releases/2015/04/150407095635.htm (“The new research demonstrates that the spontaneous self-assembly of DNA fragments just a few nanometers in length into ordered liquid crystal phases has the ability to drive the formation of chemical bonds that connect together short DNA chains to form long ones, without the aid of biological mechanisms. Liquid crystals are a form of matter that has properties between those of conventional liquids and those of a solid crystal”)
http://www.nibib.nih.gov/news-events/newsroom/attacking-alzheimer%E2%80%99s-ultrasound (Not so hot since published on 2/112015. “For the first time, researchers have reversed some of the symptoms of Alzheimer’s disease in mice using magnetic resonance (MR) imaging-guided focused ultrasound.”)
http://news.sciencemag.org/earth/2015/04/evidence-ancient-river-could-rewrite-geological-history-americas (“The existence of a river between Panama and Colombia implies that at least part of the Panama isthmus had formed 10 million years earlier than most scientists thought, the researchers report online today in Science. The new findings are part of a suite of discoveries—including fossils recovered from the expansion of the Panama Canal (pictured)—that point to an earlier closure for the isthmus, potentially rewriting the biogeographical history of the Americas.”)
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