Lifeboat Foundation

The National Institutes of Health has launched a program to study a rare type of cells, called “senescent” cells, that play both positive and negative roles in biological processes. The NIH Common Fund’s Cellular Senescence Network (SenNet) program will leverage recent advances in studying individual cells, or single-cell analysis, to comprehensively identify and characterize the differences in senescent cells across the body, across various states of human health, and across the lifespan. The rarity and diversity of these cells previously made them difficult to identify and study; therefore, a deeper understanding will help researchers develop therapies that encourage beneficial effects of senescent cells while suppressing their tissue-damaging effects.

“The number of senescent cells in a person’s body increases with age, which may reflect both an increase in the generation of these cells and a decreased ability of the aging immune system to regulate or eliminate these cells. This age-related accumulation of senescent cells leads to production of inflammatory molecules and corruption of healthy cells,” said Richard J. Hodes, M.D., director of the National Institute on Aging, part of NIH. “This can affect a person’s ability to withstand stress or illness, recuperate from injuries, and maintain normal brain function. The aim of NIH’s strengthened focus on this field of science is to one day conquer these and other challenges.”

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Through the integrated use of sensors, closed-circuit television network, automatic licence plate readers and facial recognition software, all of which feed data into a central control room, the Safe City project helps authorities predict incidents and take preemptive action against crime or violence, said Dr Major Ahmed Al Shamsi, head of Safe City Project at Abu Dhabi Police.

“The project was launched three years ago and currently covers 85 per cent of the emirate’s infrastructure. It has helped reduce traffic incidents and fatalities, patrol areas more efficiently and take action to prevent untoward occurrences,” he told Gulf News on the sidelines of the Abu Dhabi Smart City Summit.

The two-day summit is seeing the attendance of 400 experts, with the focus on the technological advances and innovations that are improving the quality of life in the UAE capital. Organised by Abu Dhabi emirate’s municipalities sector regulator, the Department of Municipalities and Transport (DMT), the Summit has already seen the launch of driverless taxis on Yas Island, as well as the signing of other agreements with technology developers like Huawei, Bayanat and G42.

By combining two-dimensional materials, researchers create a macroscopic quantum entangled state emulating rare earth compounds.

Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl.

The chemical composition of ammolite is variable, and aside from aragonite may include calcite, silica, pyrite, or other minerals. The shell itself may contain a number of trace elements, including: aluminium; barium; chromium; copper; iron; magnesium; manganese; strontium; titanium; and vanadium. Its crystallography is orthorhombic. Its hardness is 4.5–5.5, and its specific gravity is 2.60–2.85.

An iridescent opal-like play of color is shown in fine specimens, mostly in shades of green and red; all the spectral colors are possible, however. The iridescence is due to the microstructure of the aragonite: unlike most other gems, whose colors come from light absorption, the iridescent color of ammolite comes from interference with the light that rebounds from stacked layers of thin platelets that make up the aragonite.

A physics paper proposes neither you nor the world around you are real.

A roundup of news from SC21: With Frontier still not online, still no official Exascale systems in the Top500.

How to Catch a Perfect Wave: Scientists Take a Closer Look Inside the Perfect Fluid

Berkeley Lab research brings us closer to understanding how our universe began.

Scientists have reported new clues to solving a cosmic conundrum: How the quark-gluon plasma.

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In a new FLEET theoretical study published recently in Physical Review Letters, the so called ‘smoking gun’ in the search for the topological magnetic monopole — also known as the Berry curvature — has been found.

The discovery is a breakthrough in the search for topological effects in non-equilibrium systems.

The group, led by UNSW physicist and Associate Professor, Dimi Culcer, identified an unconventional Hall effect, driven by an in-plane magnetic field in semiconductor hole systems that can be traced exclusively to the Berry curvature.

We already have technology that allows wildlife to pass vaccines among themselves, and developing methods may speed up the process. But critics claim that they risk human infections and criminal misuse.