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Updated: 19 min 7 sec ago

If There Is An Arrow Of Time, How Might It Work?

Aug 22 2022 - 09:08
To most physicists, time is a relative construct. A clock changes position in three real dimensions, the earth rotates. If the effects in the real world change, like gravity, so does the perception of time. That does not make time a 'fourth' dimension outside stories.

Yet a few theoretical physicists argue that because time does march on, it is like an arrow. This 'arrow of time' would move into the future, and to bolster their idea they invoke the second law of thermodynamics: the principle that microscopic arrangements of physical systems tend to increase in randomness, moving from order to disorder. The more disordered a system becomes, the more difficult it is for it to find its way back to an ordered state, and the stronger the arrow of time.

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Y Chromosome Evidence For South American Colonization 18,000 Years Ago

Aug 19 2022 - 13:08
The history of humans is a history of expansion, from the recesses of Africa outward across the world. No one is really a native and yet everyone is, because all humans were first an invasive species but if you are born in a place, you are then native. 

Some will claim their ancestors lived in a place 12,000 years ago, but unless they had an individual genomic analysis it's no more valid than saying they were descended from Genghis Khan, yet science is converging on ways to go beyond the silly '12 percent Irish' claims based on 23andMe or Ancestry and really determine if your ancestors were as close to the first humans as can exist.

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The Science Of The Midday Siesta - Why Heat Makes Us Sleepy

Aug 18 2022 - 14:08
If you get sleepy in the middle of hot days, you are not alone. You are not even alone in the animal kingdom.

Biology may be behind it.

We know that many people have a harder time sleeping in the summer and be slow to get out of bed on colder mornings and new study hopes to connect sensory neurons and neurons that control this cycle.

The work is only in fruit flies, so it goes in the exploratory pile despite the hyper-coverage such studies get in corporate media, but they found that fruit flies are pre-programmed to take a nap in the middle of the day. They believe there is a brain thermometer only active in hot temperatures.

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CDC Does Need To Be Reorganized - To Protect Us From Their Politicization Of Science

Aug 18 2022 - 13:08
Beginning in 2010, the CDC, now under the moniker of the Centers for Disease Control and Prevention, used that new last part so aggressively that virtually no healthy person was going to be left in the US.

And it wasn't protecting the public, it was a money and power grab for the agency. Spending taxpayer money to try and convince Americans they had a manufactured conditioned called "pre-diabetes", all so they could go to Congress and get more money to fight the disease literally no other country accepted as anything but fantasy, was only one instance. They also claimed there was a vaping epidemic, and a prescription opioid epidemic, all the while being woefully unprepared for actual real diseases.

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Forced Vaccination Versus Body Autonomy In Germany

Aug 18 2022 - 08:08
There is concern about US states making their own abortion laws in the US, but in Germany most abortion is illegal. It is only allowed for medical or criminal reasons within 12 weeks of conception, and lack of body autonomy may be why most Germans are fine with mandatory COVID-19 vaccines.

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Greatest Lupus Genetic Risk Factor Pathway Revealed

Aug 18 2022 - 07:08
The molecular mechanism that drives the disease-causing effects of the most common genetic risk factor for lupus,  HLA-DRB1*03:01, has been revealed in a new study.

Systemic lupus erythematosus is a common, incurable autoimmune disease that affects millions of individuals worldwide, with a particularly high prevalence among women. The genetic variant HLA-DRB1*03:01 is the greatest risk factor for the condition, which involves inflammation in many vital organs, and can lead to severe disability and death.

In the study, investigators found that a protein coded by that HLA variant triggers a cascade of molecular and cellular effects that can cause the inflammatory symptoms seen in lupus patients.

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