19 Jan

Not in the sense of older or younger people, which would naturally be regarded as an unkind attitude.

Instead, the clearing away refers to older cells in mice that, once removed, could restore youthful qualities.

Researchers at the Weizmann Institute of Science indicate that it may indeed be possible to preserve the body's young, energetic, and healthy qualities even as we grow into the wisdom of years.

The research involved eliminating senescent cells, which aren't yet dead but have been effectively incapacitated, and which have also been tied to the promotion of inflammation, an aggravating cause of diseases of aging. Mice that displayed a greater accumulation of senescent cells were afflicted by chronic inflammation, looked older, and died younger.

17 Jan

The new mechanism, recently discovered by Australian scientists, could help to bolster cancer treatments.

A study published in the journal Nature by the Peter Doherty Institute for Infection and Immunity (Doherty Institute) and Telethon Kids Institute researchers examined the role of a specific immune cell -- tissue-resistant memory T cells (TRM) -- in battling melanoma.

Researchers discovered that TRM cells had the capacity to control such a tumor in mice for as long as the animal lived. This is believed to equate to decades of similar protection in humans.

Simone Park, a Ph.D. student at the University of Melbourne as well as a member of the Doherty Institute, said in a news release, “Using a special microscope, we could see individual melanoma cells sitting in the skin of the mouse, and could watch the T cells move through the skin, find the melanoma cells and control the growth of those cells.”

15 Jan

The damage to the Great Barrier Reef has been well publicized in recent years, with bleaching events putting the entire system at risk. As much as half of the coral cover has been lost to these events, with experts predicting that the entire cover will be gone by the year 2050. This puts in danger the marine plants and animals that call the Great Barrier Reef home.

But scientists may have found a way to at least mitigate some of the damage. Utilizing an underwater robot called LarvalBot, researchers have discovered a way to plant small baby corals all along the Great Barrier Reef. The hope is that this will eventually populate the reef, essentially repairing the damage that’s been done.

13 Jan

When it comes to counting, bees may be more efficient than humans, according to a recent study. Scientists found that when bees count, they can use only four nerve cells, allowing them to at least count to five.

Humans, on the other hand, use a much less efficient method of counting. The study showed that unlike humans, who look at all items in a group before beginning to count, bees scrutinize one item at a time. The study also found that bees have the ability to choose the smaller or larger of two values or select something with a value of zero, provided they’re trained to do so.

11 Jan

Scientists from Rice University have come up with a rechargeable lithium metal battery that is said to contain three times the capacity of presently available lithium-ion cells -- all by conquering a problem that has vexed researchers for many years: the dendrite issue.

Dendrites are lithium deposits that take up more and more of a battery's electrolyte. They can accumulate to a point of short-circuiting, which makes a battery fail or possibly explode.

The Rice researchers, headed by James Tour, a chemist, discovered that when their batteries are charged, lithium metal uniformly coats the carbon hybrid area where nanotubes are fused to the surface of graphene. The hybrid in the Rice-made battery takes the place of a graphite anode in typical lithium-ion batteries, which are designed to sacrifice capacity for the sake of safety.

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