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From Black Death to COVID-19, pandemics have always pushed people to honor death and celebrate life

After the last couple of Halloweens were plagued by doubt and worry thanks to a global pandemic with no clear end in sight, Halloween 2022 may feel especially exciting for those ready to celebrate it. Thanks to ongoing vigilance and continuing vaccination efforts, many people in the U.S. are now fortunate enough to feel cautiously optimistic after all those awful months that have passed since March 2020.

Etching from Jean-Jacques Manget 'Traite de la peste' 1721.

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The danger of advanced artificial intelligence controlling its own feedback

How would an artificial intelligence (AI) decide what to do? One common approach in AI research is called “reinforcement learning”.

Reinforcement learning gives the software a “reward” defined in some way, and lets the software figure out how to maximize the reward. This approach has produced some excellent results, such as building software agents that defeat humans at games like chess and Go, or creating new designs for nuclear fusion reactors.

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Self-control may be the key to ensuring narcissists are less aggressive and revenge orientated

A study published in theJournal of Research in Personality illuminates the potential relationship between self-control and antagonistic narcissism, a trait with negative social consequences. Researchers found that narcissistic individuals with high levels of self-control were less likely to engage in antagonistic behaviors. These findings suggest that individuals with narcissistic personalities may be able to resist the impulse to engage in antagonistic behaviors if they practice and apply self-control. Narcissism includes several sub-traits, including agentic narcissism and antagonist narciss...

Particle physics pushing cancer treatment boundaries

Researchers at Europe's science lab CERN, who regularly use particle physics to challenge our understanding of the universe, are also applying their craft to upend the limits to cancer treatment.

The physicists here are working with giant particle accelerators in search of ways to expand the reach of cancer radiation therapy, and take on hard-to-reach tumors that would otherwise have been fatal.

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New research has uncovered a psychological mechanism that underlies fanaticism

A new series of nine experimental studies indicates that “discordant knowing”, certainty about something one perceives as opposed by the majority of others, predicts greater fanaticism. The studies showed that experimental manipulation of participants’ views, i.e. putting them in a situation where they are set to see their views as being in opposition to the majority, increased behavioral indicators of fanaticism, such as aggression, determined ignorance and wanting to join extreme groups in service of one’s view. The study was published in the Journal of Experimental Psychology: General. Dogm...

A lack of adaptive stress responses may heighten social anxiety in adolescents

An eight-year study examined the relationship between adolescent coping strategies and social anxiety. Findings suggest that a lack of adaptive coping strategies is related to the development of social anxiety. Those subjects who demonstrated maladaptive coping mechanisms when experiencing stress were more likely to develop social anxiety later. In addition, the researchers found that social anxiety often caused maladaptive stress responses and vice versa. This relationship between maladaptive coping mechanisms and social anxiety indicates that if coping strategies for stress were taught early...

Signatures of alien technology could be how humanity first finds extraterrestrial life

If an alien were to look at Earth, many human technologies – from cell towers to fluorescent light bulbs – could be a beacon signifying the presence of life.

We are two astronomers who work on the search for extraterrestrial intelligence – or SETI. In our research, we try to characterize and detect signs of technology originating from beyond Earth. These are called technosignatures. While scanning the sky for a TV broadcast of some extraterrestrial Olympics may sound straightforward, searching for signs of distant, advanced civilizations is a much more nuanced and difficult task than it might seem.

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Humans are 8% virus – how the ancient viral DNA in your genome plays a role in human disease and development

Remnants of ancient viral pandemics in the form of viral DNA sequences embedded in our genomes are still active in healthy people, according to new research my colleagues and I recently published.

HERVs, or human endogenous retroviruses, make up around 8% of the human genome, left behind as a result of infections that humanity’s primate ancestors suffered millions of years ago. They became part of the human genome due to how they replicate.

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A new type of material called a mechanical neural network can learn and change its physical properties to create adaptable, strong structures

The Research Brief is a short take about interesting academic work.

The big idea

A new type of material can learn and improve its ability to deal with unexpected forces thanks to a unique lattice structure with connections of variable stiffness, as described in a new paper by my colleagues and me.

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AI is changing scientists’ understanding of language learning – and raising questions about an innate grammar

Unlike the carefully scripted dialogue found in most books and movies, the language of everyday interaction tends to be messy and incomplete, full of false starts, interruptions and people talking over each other. From casual conversations between friends, to bickering between siblings, to formal discussions in a boardroom, authentic conversation is chaotic. It seems miraculous that anyone can learn language at all given the haphazard nature of the linguistic experience.

For this reason, many language scientists – including Noam Chomsky, a founder of modern linguistics – believe that language learners require a kind of glue to rein in the unruly nature of everyday language. And that glue is grammar: a system of rules for generating grammatical sentences.

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Iconic 'Pillars of Creation' captured in new Webb image

The James Webb Space Telescope captured the iconic "Pillars of Creation," huge structures of gas and dust teeming with stars, NASA said Wednesday, and the image is as majestic as one could hope.

The twinkling of thousands of stars illuminates the telescope's first shot of the gigantic gold, copper and brown columns standing in the midst of the cosmos.

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Sleeping fewer than 5 hours a night may pose risks to people 50 and over, study says

Adults age 50 and older who don’t get at least five hours of sleep at night are 40% more likely to be diagnosed with two or more chronic diseases, compared to those who sleep for up to seven hours, a new study has found. Researchers with University College London set out to analyze the impact of sleep duration on the health of nearly 8,000 British civil servants, ages 50, 60 and 70, over the course of 25 years. Participants were asked “How many hours of sleep do you have on an average weeknight?” and whether they had been diagnosed with chronic diseases such as cancer, diabetes and heart disea...

First 'concrete picture' of Neanderthal family revealed by DNA

The original Flintstones? The largest genetic study of Neanderthals ever conducted has offered an unprecedented snapshot of a family, including a father and his teenage daughter, who lived in a Siberian cave around 54,000 years ago.

The new research, published in the journal Nature on Wednesday, used DNA sequencing to look at the social life of a Neanderthal community, finding that women were more likely to stray from the cave than men.

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