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The airless tire isn’t a new concept.
Michelin first introduced its idea for one called.
the Tweel over decade ago, and it started selling.
production versions for small lawn and construction equipment a few years back. But what.

Is new about the tech is its use for actual production cars, and that’s where this new Michelin Uptis tire comes in. The Uptis is designed to handle not just the weight of a real car like the old Tweel, but also be able to provide proper grip and durability at highway speeds, too.

Though the design is now more capable, the Uptis airless tire still uses the same basic idea as the Tweel. Sandwiched between the outer tread and the inner aluminum wheel are a bunch of spokes or ribs that substitute air pressure. These spokes are made of a combination of rubber and fiberglass reinforced resin.

Michelin Uptis

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During the winter months, renewable energy is in short supply throughout Europe. An international project is now considering an unconventional solution: Renewable hydrogen and carbon dioxide are pumped into the ground together, where naturally occurring microorganisms convert the two substances into methane, the main component of natural gas.

Underground Sun Conversion technology, patented by the Austrian energy company RAG Austria AG, offers a way to seasonally store renewable energy on a large scale and make it available all year round. In summer, this involves converting surplus renewable energy—, for instance—into hydrogen (H2). This is then stored together with (CO2) in natural underground storage facilities—for example, former natural gas deposits—at a depth of over 1000 meters.

This is where little helpers come into play: Microorganisms from , so-called archaea, convert hydrogen and CO2 into renewable methane (CH4) via their metabolism. Archaea are found all over the world, mainly in anaerobic, i.e. low-oxygen environments; they were responsible for converting biomass into natural gas millions of years ago. By feeding hydrogen and CO2 into suitable porous sandstone deposits, this process can be started all over again. The methane “produced” in the depth can then be withdrawn from the reservoirs during winter and used in a variety of ways as CO2-neutral natural gas.

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Engineers at Duke University have devised a system for manipulating particles approaching the miniscule 2.5 nanometer diameter of DNA using sound-induced electric fields. Dubbed “acoustoelectronic nanotweezers,” the approach provides a label-free, dynamically controllable method of moving and trapping nanoparticles over a large area. The technology holds promise for applications in the fields ranging from condensed matter physics to biomedicine.

The research appears online on June 22 in Nature Communications.

Precisely controlling nanoparticles is a crucial ability for many emerging technologies. For example, separating exosomes and other tiny biological molecules from blood could lead to new types of diagnostic tests for the early detection of tumors and neurodegenerative diseases. Placing engineered nanoparticles in a specific pattern before fixing them in place can help create new types of materials with highly tunable properties.

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Cellular senescence, a state of permanent growth arrest, has emerged as a hallmark and fundamental driver of organismal aging. It is regulated by both genetic and epigenetic factors. Despite a few previously reported aging-associated genes, the identity and roles of additional genes involved in the regulation of human cellular aging remain to be elucidated. Yet, there is a lack of systematic investigation on the intervention of these genes to treat aging and aging-related diseases.

How many aging-promoting genes are there in the human genome? What are the molecular mechanisms by which these genes regulate aging? Can gene therapy alleviate individual aging? Recently, researchers from the Chinese Academy of Sciences have shed new light on the regulation of aging.

Recently, researchers from the Institute of Zoology of the Chinese Academy of Sciences (CAS), Peking University, and Beijing Institute of Genomics of CAS have collaborated to identify new human senescence-promoting genes by using a genome-wide CRISPR/Cas9 screening system and provide a new therapeutic approach for treating aging and aging-related pathologies.

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BOSTON (PRWEB) November 18, 2020

What does it mean for multiplying cells in the body to be immortal? The cell DNA is being replicated over and over again while being divided equally between new cells produced by cell divisions. All the new cell components produced by the DNA code are mixing with the old cell components and being divided between the new cells. So, every cell is a new cell. There is nothing really immortal about any of them. Right?

Not quite. Stem cells responsible for renewing other mature body cells are different. For a long time, tissue cell scientists had a somewhat nebulous idea that stem cells had a special longevity in organs and tissues – that they were immortal cells, lasting for as long as the human lifespan. However, no one had a molecular concept for this idea of stem cell immortality until John Cairns, a pioneer of DNA replication, started thinking about DNA mutations and cancer in the 1970’s.

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