The first comprehensive study of electric-field-induced polarization switching in wurtzites reveals an atomic-scale switching pathway with potential electronics applications.
Category: electronics – Page 23
In a recent article published in Nature communications*, researchers described a technique of capturing two-dimensional (2D) light patterns into deoxyribonucleic acid (DNA) and using high-throughput next-generation sequencing to retrieve recorded images.
Study: A biological camera that captures and stores images directly into DNA. Image Credit: BillionPhotos/Shutterstock.com.
New gadget can map electrical activity and deliver electrical stimuli to stop atrial fibrillation, before dissolving into the body.
Nearly 800K people fall victim to a heart attack in the US each year. A recent study undertaken by a team of researchers at Northwestern and George Washington (GW) universities has developed a new device to monitor and treat heart disease and dysfunctions in the aftermath of heart-related incidents.
The device seems to hold promise for providing critical support during the days, weeks, or months following heart problems. According to the researchers convey that the new technology harmlessly dissolves inside the body and skips the need for extraction.
Northwestern university / george washington university.
A recent study undertaken by a team of researchers at Northwestern and George Washington (GW) universities has developed a new device to monitor and treat heart disease and dysfunctions in the aftermath of heart-related incidents.
Dinn/iStock.
The team developed a new liquid metal coating that can transform ordinary paper into self-adhesive gadgets capable of conducting heat and electricity. Although liquid metal is used in circuits and wearable sensors, the possibility of it being a coating has been unexplored until now.
Engineers from Rice University and the University of Maryland have created full-motion video technology that could potentially be used to make cameras that peer through fog, smoke, driving rain, murky water, skin, bone and other media that reflect scattered light and obscure objects from view.
“Imaging through scattering media is the ‘holy grail problem’ in optical imaging at this point,” said Rice’s Ashok Veeraraghavan, co-corresponding author of an open-access study published today in Science Advances. “Scattering is what makes light—which has lower wavelength, and therefore gives much better spatial resolution—unusable in many, many scenarios. If you can undo the effects of scattering, then imaging just goes so much further.”
Veeraraghavan’s lab collaborated with the research group of Maryland co-corresponding author Christopher Metzler to create a technology they named NeuWS, which is an acronym for “neural wavefront shaping,” the technology’s core technique.
WASHINGTON — Satellite manufacturer Terran Orbital has signed an agreement with French aerospace giant Safran to explore U.S.-based production of satellite propulsion systems, the companies announced June 23.
Under the agreement, Safran Electronics & Defense and Terran Orbital will investigate opportunities and prerequisites for the production of electric propulsion systems for satellites based on Safran’s PPSX00 plasma thruster.
The PPSX00 is a hall effect plasma thruster, recently introduced by Safran for the low Earth orbit satellite market.
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This is according to a study by the institution published on Wednesday.
The foremost physiological effect of psychedelics in the brain is to significantly reduce activity in multiple brain areas, which contradicts the mainstream reductionist expectation. Physicalist neuroscientists have proposed that an increase in brain noise explains the subjective richness of a psychedelic experience, but a psychedelic experience isn’t akin to TV static, argues Bernardo Kastrup.
Before 2012, the generally accepted wisdom in neuroscience was that psychedelic substances—which lead to unfathomably rich experiential states—stimulate neuronal activity and light up the brain like a Christmas tree. Modern neuroimaging, however, now shows that they do precisely the opposite: the foremost physiological effect of psychedelics in the brain is to significantly reduce activity in multiple brain areas, while increasing it nowhere in the brain beyond measurement error. This has been consistently demonstrated for multiple psychedelic substances (psilocybin, LSD, DMT), with the use of multiple neuroimaging technologies (EEG, MEG, fMRI), and by a variety of different research groups (in Switzerland, Brazil, the United Kingdom, etc.). Neuroscientist Prof. Edward F. Kelly and I published an essay on Scientific American providing an overview of, and references to, many of these studies.
These results contradict the mainstream metaphysics of physicalism for obvious reasons: experience is supposed to be generated by metabolic neuronal activity. A dead person with no metabolism experiences nothing because their brain has no activity. A living person does because their brain does have metabolic activity—or so the story goes. And since neuronal activity supposedly causes experiences, there can be nothing to experience but what can be traced back to patterns of neuronal activity (otherwise, one would have to speak of disembodied experience). Ergo, richer, more intense experience—such as the psychedelic state—should be accompanied by increased activity somewhere in the brain; for it is this increase that supposedly causes the increased richness and intensity of the experience.