The results of the study demonstrated that the mechanisms for visual perception change drastically in the second half of the first year of life, from the bottom-up system to the system incorporating top-down processing.
Summary: Study reveals very young infants can perceive objects that older infants, children, and adults can not see due to a phenomenon called visual backward masking.
Scientists successfully treated a rare disease with the experimental gene-editing technique. It could open the door to new ways of treating more common disorders in the future.
Artificial kidneys, powerful batteries and efficient water purification are some of the future applications of a group of ultrathin materials known as MXenes. This opinion is expressed in an article in the journal Science, whose authors include one from Linköping University.
Materials that have a cross-section as thin as one or a few layers of atoms possess unusual properties due to their thickness. These properties may be high electrical conductivity, high strength or an ability to withstand heat, giving ultrathin materials a great potential for use in future technology. The most well-known material is graphene, and the hunt for other ultrathin materials, also known as two-dimensional materials, has increased in intensity since its discovery.
Graphene and many other two-dimensional materials are either semiconductors, semimetals or polarized insulators. The lack of an ultrathin metal conductor is an obstacle in the development of components based exclusively on two-dimensional materials.
The results open possibilities for studying gravity’s effects on relatively large objects in quantum states.
To the human eye, most stationary objects appear to be just that — still, and completely at rest. Yet if we were handed a quantum lens, allowing us to see objects at the scale of individual atoms, what was an apple sitting idly on our desk would appear as a teeming collection of vibrating particles, very much in motion.
In the last few decades, physicists have found ways to super-cool objects so that their atoms are at a near standstill, or in their “motional ground state.” To date, physicists have wrestled small objects such as clouds of millions of atoms, or nanogram-scale objects, into such pure quantum states.
The most accurate distance measurement yet of ultra-diffuse galaxy (UDG) NGC1052-DF2 (DF2) confirms beyond any shadow of a doubt that it is lacking in dark matter. The newly measured distance of 22.1 +/-1.2 megaparsecs was obtained by an international team of researchers led by Zili Shen and Pieter van Dokkum of Yale University and Shany Danieli, a NASA Hubble Fellow at the Institute for Advanced Study.
“Determining an accurate distance to DF2 has been key in supporting our earlier results,” stated Danieli. “The new measurement reported in this study has crucial implications for estimating the physical properties of the galaxy, thus confirming its lack of dark matter.”
The results, published in Astrophysical Journal Letters on June 9, 2021, are based on 40 orbits of NASA’s Hubble Space Telescope, with imaging by the Advanced Camera for Surveys and a “tip of the red giant branch” (TRGB) analysis, the gold standard for such refined measurements. In 2019, the team published results measuring the distance to neighboring UDG NGC1052-DF4 (DF4) based on 12 Hubble orbits and TRGB analysis, which provided compelling evidence of missing dark matter. This preferred method expands on the team’s 2018 studies that relied on “surface brightness fluctuations” to gauge distance. Both galaxies were discovered with the Dragonfly Telephoto Array at the New Mexico Skies observatory.
The most detailed observations of some of the most distant galaxies we have ever seen have revealed the timing of cosmic dawn, when the first stars began to shine.
Mesenchymal stem cells derived from adipose tissue appear to reverse some effects of aging in nearby somatic cells.
A new study published in the FASEB Journal shows how mesenchymal stem cells derived from adipose tissue (ADSCs) reverse some effects of aging in nearby cells.
It’s not the cells themselves, it’s what they secrete
Exercise and supplements are both great, but if you are constantly feeding your system with home made stimulants that your body produces, you may be fighting an uphill battle. I experienced just that recently, I seemed to be forever on one social media platform or another constantly, under the excuse of promoting my videos, and it really took its toll. So, I just had a few weeks off, reading, exercising, relaxing outside, when the sun was out that is, and going for walks in nature…and now it is your turn. In Attention Span Is Decreasing, I look at how our modern lifestyles, with all their trappings and perks, can have the opposite effect to the one we are after, and how you can start to take back control. Mute alerts, use the flight mode, stick it in a drawer and embrace the 20−5−3 rule, to live not just longer, but happier, and healthier, both in body and mind, because they are inextricably linked. And if you want to know it all in a bit more depth, check out this video on my channel.
In Attention Span Is Decreasing, we will learn how our modern lifestyles, with all their trappings and perks, can have the opposite effect to the one we are…
