[DrCaleb]

You should meet a Whisky Jack. Aka, Grey Jay. Super smart. They will notice if you have treats in a pocket, and hang off the side of your jacket to get the treats a little faster.

Not afraid of people. Even the First Nations knew they have been friendly for many generations and the names comes from an Anglicization of the Cree word for them, "Wisakedjak".

[DrCaleb]

[DrCaleb]

The loss of dark skies is so painful, astronomers coined a new term for it

[Scape]

[DrCaleb]

World’s 1st drug to regrow teeth enters clinical trials

[DrCaleb]

We finally know for sure what a trilobite ate

[DrCaleb]

Einstein right again: Antimatter falls “down” due to gravity like ordinary matter

[DrCaleb]

People Experience ‘New Dimensions of Reality' When Dying, Groundbreaking Study Reports

Patients Recall Death Experiences After Cardiac Arrest

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Up to an hour after their hearts had stopped, some patients revived by cardiopulmonary resuscitation (CPR) had clear memories afterward of experiencing death and while unconscious had brain patterns linked to thought and memory.

. . .

Published online September 14 in the journal Resuscitation, the study also found that in these patients, nearly 40 percent had brain activity that returned to normal, or nearly normal, at points even an hour into CPR. As captured by electroencephalogram (EEG), a technology that records brain activity with electrodes, the patients had spikes in the gamma, delta, theta, alpha, and beta waves associated with higher mental function.

. . .

The study authors hypothesize that the “flatlined,” dying brain removes natural inhibitory (braking) systems. These processes, known collectively as disinhibition, may open access to “new dimensions of reality,” they say, including lucid recall of all stored memories from early childhood to death, evaluated from the perspective of morality. While no one knows the evolutionary purpose of this phenomenon, it “opens the door to a systematic exploration of what happens when a person dies.”

“Although doctors have long thought that the brain suffers permanent damage about 10 minutes after the heart stops supplying it with oxygen, our work found that the brain can show signs of electrical recovery long into ongoing CPR,” said senior study author Sam Parnia, MD, PhD, an associate professor in the Department of Medicine at NYU Langone Health. “This is the first large study to show that these recollections and brain wave changes may be signs of universal, shared elements of so called near-death experiences.”

These experiences provide a glimpse into a real, yet little-understood dimension of human consciousness that becomes uncovered with death, adds Dr. Parnia, who is also director of critical care and resuscitation research at NYU Langone. The findings “may also guide the design of new ways to restart the heart or prevent brain injuries, and hold implications for transplantation.”

[DrCaleb]

Metformin induces ferroptosis through the Nrf2/HO-1 signaling in lung cancer

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Conclusions

These results demonstrated that metformin exerts anti-tumor effects by inducing ferroptosis through the Nrf2/HO-1 signaling pathway in lung cancer cells, providing a theoretical basis for drug therapy of lung cancer patients.

Metformin is a cheap and easily available drug often prescribed for Type II diabetes and pre-diabetes.

[DrCaleb]

More evidence that humans were in North America over 20,000 years ago

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People really were walking around in the southwestern US during the middle of the last Ice Age, according to a recent study that double-checked the dates on a set of surprisingly ancient human footprints at White Sands National Park.

Many thousands of years ago, someone walked along the muddy shore of an ancient lake at what’s now White Sands. They crushed ditchgrass seeds and grains of conifer pollen beneath their feet with every squishing, slippery step. Bournemouth University archaeologist Matthew Bennett and his colleagues (including the authors of the current study) unearthed eight layers of tracks at the site in early 2020; they radiocarbon-dated the ditchgrass seeds from the oldest layer of footprints to 23,000 years old and the youngest layer to around 21,000 years old.

Their 2021 paper sparked immediate debate.

[DrCaleb]

A highly integrated bionic hand with neural control and feedback for use in daily life

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Restoration of sensorimotor function after amputation has remained challenging because of the lack of human-machine interfaces that provide reliable control, feedback, and attachment. Here, we present the clinical implementation of a transradial neuromusculoskeletal prosthesis—a bionic hand connected directly to the user’s nervous and skeletal systems.

[DrCaleb]

Argentina election: front runner vows to slash science funding

[DrCaleb]

Roundup herbicide ingredient connected to epidemic levels of chronic kidney disease

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For the past couple of decades, tens of thousands of people living in rural Sri Lanka have been devastated by kidney failure due to unclear causes, also known as CKDu. Similar incidences of mysterious kidney diseases have emerged in tropical farming communities around the world.

A massive field study of the wells supplying drinking water to the Sri Lankan communities, conducted by researchers at Duke University, has identified a possible culprit—glyphosate, the active compound in Roundup, the most widely used herbicide in the world.

The results of the study were published in Environmental Science and Technology Letters on September 13, 2023.

[DrCaleb]

Scientist, after decades of study, concludes: We don't have free will

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After more than 40 years studying humans and other primates, Sapolsky has reached the conclusion that virtually all human behavior is as far beyond our conscious control as the convulsions of a seizure, the division of cells or the beating of our hearts.

This means accepting that a man who shoots into a crowd has no more control over his fate than the victims who happen to be in the wrong place at the wrong time. It means treating drunk drivers who barrel into pedestrians just like drivers who suffer a sudden heart attack and veer out of their lane.

"The world is really screwed up and made much, much more unfair by the fact that we reward people and punish people for things they have no control over," Sapolsky said. "We've got no free will. Stop attributing stuff to us that isn't there."

[DrCaleb]