Japan’s attractiveness to regenerative-medicine entrepreneurs is prompting other countries to look closely at its regulatory changes. There is undoubtedly a competition under way, and unless something is done, it risks becoming a race to the bottom.
Japan helped to bring stem-cell technology to the world. Its regulatory policies threaten its hard-won reputation.
Organic photovoltaic (OPV) cells, a third-generation solar cell technology that can convert solar energy into electricity, have been found to be more efficient than silicon cells under low light intensity indoor LED illumination. These cells have also shown great potential for powering low consumption, off-the grid electronics in indoor environments.
Despite their huge potential, the power conversion efficiency of OPV cells is currently limited by substantial losses in their open-circuit voltage. In addition, past studies suggest that when used for indoor illumination their absorption spectrum is far from optimal.
In a quest to overcome these limitations, a team of researchers at the Chinese Academy of Sciences in China and Linköping University in Sweden have recently designed a non-fullerene acceptor for that could enable high-performance organic photovoltaic cells for indoor applications. This new acceptor, presented in a paper published in Nature Energy, can be blended with a polymer donor to obtain a photoactive layer with an absorption spectrum that matches that of indoor light sources.
Quantum computing has the potential to revolutionize technology, medicine, and science by providing faster and more efficient processors, sensors, and communication devices.
But transferring information and correcting errors within a quantum system remains a challenge to making effective quantum computers.
In a paper in the journal Nature, researchers from Purdue University and the University of Rochester, including John Nichol, an assistant professor of physics, and Rochester Ph.D. students Yadav P. Kandel and Haifeng Qiao, demonstrate their method of relaying information by transferring the state of electrons. The research brings scientists one step closer to creating fully functional quantum computers and is the latest example of Rochester’s initiative to better understand quantum behavior and develop novel quantum systems. The University recently received a $4 million grant from the Department of Energy to explore quantum materials.
This new visualization of a black hole illustrates how its gravity distorts our view, warping its surroundings as if seen in a carnival mirror. The visualization simulates the appearance of a black hole where infalling matter has collected into a thin, hot structure called an accretion disk. The black hole’s extreme gravity skews light emitted by different regions of the disk, producing the misshapen appearance.
Bright knots constantly form and dissipate in the disk as magnetic fields wind and twist through the churning gas. Nearest the black hole, the gas orbits at close to the speed of light, while the outer portions spin a bit more slowly. This difference stretches and shears the bright knots, producing light and dark lanes in the disk.
Viewed from the side, the disk looks brighter on the left than it does on the right. Glowing gas on the left side of the disk moves toward us so fast that the effects of Einstein’s relativity give it a boost in brightness; the opposite happens on the right side, where gas moving away us becomes slightly dimmer. This asymmetry disappears when we see the disk exactly face on because, from that perspective, none of the material is moving along our line of sight.
SPACE agencies such as NASA and the ESA could theoretically one day travel the universe faster than the speed of light after one expert revealed that warp drive technology could be possible.
Some people wonder if time really exists. Here are arguments for and against the existence of time, from a physicist’s perspective.
Scientists find that bursts of gamma rays may exceed the speed of light and cause time-reversibility.
It’s the biggest single-dish radio telescope in the world, spanning the length of 30 soccer fields.
Super Sensitive
The telescope has also detected hundreds of fast radio bursts from a single known source, many of which were too faint to pick up by other telescopes, according to Nature. It could even spot distant exoplanets by their radio emissions alone — something that has yet to be successfully done.
Continue reading “China Opens Up Ginormous Alien-Hunting Telescope” »
The scientists suggest that bacteriophages are part of a tripartite interaction of host organism, bacteria and bacteriophages, where they provide mechanisms for maintaining symbiotic co-existence.
While viruses are typically known for their pathogenic properties, new research findings now also demonstrate a positive influence of bacteriophages on the interaction of host organisms with bacteria. A new study sheds new light on the symbiosis between multicellular organisms and their microbial communities, which may be regulated by bacteriophages in a tripartite relationship.
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Cells that become senescent irrevocably stop dividing under stress, spewing out a mix of inflammatory proteins that lead to chronic inflammation as more and more of the cells accumulate over time. Publishing in the September 24 edition of Cell Reports, researchers at the Buck Institute identified 44 specific senescence-associated proteins that are involved in blood clotting, marking the first time that cellular senescence has been associated with age-related blood clots.
“The incidence of venous thrombosis, which includes deep vein thrombosis and pulmonary embolism is extremely low until the age of 45, when it begins to rise rapidly. Over time it becomes a major risk factor for death. By 80, the condition affects five to six people per thousand individuals,” said Judith Campisi, PhD, Buck professor and senior co-author of the study. “Blood clots are also a serious side effect of chemotherapy, which sets off a cascade of senescence in those undergoing treatment. That’s why blood thinners, which carry their own risks, are often included in treatment protocols.”
Scientists in the Campisi lab and other labs around the world are working to develop senolytics, drugs which would clear senescent cells from the body, potentially providing treatment options for many age-related diseases that are either caused or linked to senescence. They include Alzheimer’s and Parkinson’s diseases, cardiovascular disease, osteoarthritis, macular degeneration, age-related cancers and sarcopenia, among others.
