Sleep Homeostasis and Models of Sleep Regulation Peter Achermann According to the two-process model of sleep regulation, the timing and structure of sleep are determined by the interaction of a homeostatic and a circadian process. The original qualitative model was elaborated to quantitative versions that included the ultradian dynamics of sleep in relation to the non-REM-REM sleep cycle. The time course of EEG slow-wave activity, the major marker of non-REM sleep homeostasis, as well as daytime alertness were simulated successfully for a considerable number of experimental protocols. They include sleep after partial sleep deprivation and daytime napping, sleep in habitual short and long sleepers, and alertness in a forced desynchrony protocol or during an extended photoperiod. Simulations revealed that internal desynchronization can be obtained for different shapes of the thresholds.
New Zealand Man is 3D-Printing a Fully-Functional 1961 Aston Martin Replica New Zealander Ivan Sentch is 3D printing an entire 1961 Aston Martin DB4 replica! Using a CAD rendering from TurboSquid, which he modified to suit his design goals, Sentch has so far produced 2,500 fiberglass molds and four four-inch sections that he has mounted on a wooden frame and glued into place. He spent about $2,000 on plastics for the 3D printing, and now plans to build a mold for a fiberglass exterior shell. There are only 1,200 existing models of the 1961 Aston Martin DB4 in the world, each costing between several hundred thousand to $1 million on the auction circuit.
Wave Bubble Two Wavebubbles. Left is an earlier revision with the top removed and with external antennas. Right is v1.0 with internal antennas, fit into a pack of cigarettes. This website details the design and construction Wave Bubble: a self-tuning, wide-bandwidth portable RF jammer. Scientists Finally Show How Your Thoughts Can Cause Specific Molecular Changes To Your GenesTunedBody With evidence growing that training the mind or inducing certain modes of consciousness can have positive health effects, researchers have sought to understand how these practices physically affect the body. A new study by researchers in Wisconsin, Spain, and France reports the first evidence of specific molecular changes in the body following a period of intensive mindfulness practice. The study investigated the effects of a day of intensive mindfulness practice in a group of experienced meditators, compared to a group of untrained control subjects who engaged in quiet non-meditative activities. After eight hours of mindfulness practice, the meditators showed a range of genetic and molecular differences, including altered levels of gene-regulating machinery and reduced levels of pro-inflammatory genes, which in turn correlated with faster physical recovery from a stressful situation. The study was published in the Journal Psychoneuroendocrinology. According to Dr.
Chinese Scientists Grow False Teeth From Human Urine Over the years scientists have made false teeth from a variety of materials – from cuspids crafted out of animal bone to chompers made from wood and gold. However a group of Chinese scientists just announced that they have successfully grown “rudimentary teeth” from an extremely unlikely and slightly unsettling source: human pee. According to the research, published in Cell Regeneration Journal, the tiny tooth-like structures were grown from stem cells harvested from urine. While the scientists believe it could herald a new, albeit disturbing, age for false teeth, stem cell researchers believe they could have several hurdles to overcome. The Chinese research team, which is based at the Guangzhou Institutes of Biomedicine and Health used urine as it contains cells that are normally passed out of the body – but in the laboratory they can be come stem cells.
Electromagnetic Field Shielding Fabrics - Nightly Ultra-Low Cost Conductive Fabric Perfect for bedding, clothing, wraps and drapes. Impressive conductivity in a completely non-toxic format. Cotton Grid Fabric is the perfect choice when you want an all natural conductive fabric. INTELLIHUB By Shepard Ambellas | November 30, 2013 | 2:22pm EDT In what will soon be considered as the Holy Grail of extraterrestrial research, the Mexican government has released ancient documents proving the existence of E.T.’s once and for all.  The two circles near the center of the artifact appear to be earth.  This appears to be a spacecraft of some type.  This appears to be a massive comet or asteroid headed toward earth.  Appears to be a specially designed spacecraft capable of deflecting a large comet or meteor, such as NASA “Deep Impact”.  Appears to be an astronaut in control of a craft.  What appears to be an intelligently controlled spacecraft. CALAKMUL, MEXICO (INTELLIHUB) — Newly released Mayan documents, i.e. artifacts, dating back at least 1300-years reveal that the human race is not alone and highly advanced technologies including space travel have likely existed for quite some time.
Cradle turns smartphone into handheld biosensor CHAMPAIGN, Ill. - Researchers and physicians in the field could soon run on-the-spot tests for environmental toxins, medical diagnostics, food safety and more with their smartphones. University of Illinois at Urbana-Champaign researchers have developed a cradle and app for the iPhone that uses the phone's built-in camera and processing power as a biosensor to detect toxins, proteins, bacteria, viruses and other molecules. Having such sensitive biosensing capabilities in the field could enable on-the-spot tracking of groundwater contamination, combine the phone's GPS data with biosensing data to map the spread of pathogens, or provide immediate and inexpensive medical diagnostic tests in field clinics or contaminant checks in the food processing and distribution chain. "We're interested in biodetection that needs to be performed outside of the laboratory," said team leader Brian T. Cunningham, a professor of electrical and computer engineering and of bioengineering at the U. of I.
Mr. Ghost - iPhone EMF Detector Do you ever sense a presence in your home when no one is around? That energy fluctuation you're detecting could be a fearsome poltergeist trying to manifest itself back into this world, electromagnetic radiation coming from an electronic device, or a combination of ghosts messing with your electronic devices, like televisions. If you had a PKE(Psycho Kinetic Energy) meter like the Ghostbusters did, detecting paranormal activity would be simple, but until that gets invented, you can just use this cool new Mr. Ghost EMF Detector for iPhone. Just plug the Mr. Ghost EMF antenna into the headphone jack of your iPhone, iPod Touch, or iPad, download the free app, and start detecting the electromagnetic radiation levels around your house.
Simulations back up theory that Universe is a hologram Artist's impression by Markus Gann/Shutterstock At a black hole, Albert Einstein's theory of gravity apparently clashes with quantum physics, but that conflict could be solved if the Universe were a holographic projection. A team of physicists has provided some of the clearest evidence yet that our Universe could be just one big projection. In 1997, theoretical physicist Juan Maldacena proposed1 that an audacious model of the Universe in which gravity arises from infinitesimally thin, vibrating strings could be reinterpreted in terms of well-established physics.
Researchers claim 3-D printers pose 'health risk' CHICAGO — Three-dimensional printers using the fused deposition molding (FDM) process could pose a health risk to operators, according to researchers from the Illinois Institute of Technology in the U.S. and the National Institute of Applied Sciences in Lyon, France. Writing in the journal Atmospheric Environment, Brent Stephens, Parham Azimi, Zeineb El Orch and Tiffanie Ramos note that “heated thermoplastic extrusion and deposition … is a process that has been shown to have significant aerosol emissions in industrial environments. “Because most of these devices [consumer FDM 3-D printers] are currently sold as standalone devices without any exhaust ventilation or filtration accessories, results herein suggest caution should be used when operating in inadequately ventilated or unfiltered indoor environments.” The researchers carried out their tests at a 3-D printing bureau in Chicago, The 3D Printing Experience.