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Apr 27, 2024

Biologists Construct Groundbreaking Tree of Life Using 1.8 Billion Letters of Genetic Code

Posted by in categories: climatology, genetics, sustainability

A recent study published in the journal Nature by an international team of 279 scientists, including three biologists from the University of Michigan, provides the latest insights into the flowering plant tree of life.

Using 1.8 billion letters of genetic code from more than 9,500 species covering almost 8,000 known flowering plant genera (ca. 60%), this achievement sheds new light on the evolutionary history of flowering plants and their rise to ecological dominance on Earth.

Led by scientists at the Royal Botanic Gardens, Kew, the research team believes the data will aid future attempts to identify new species, refine plant classification, uncover new medicinal compounds, and conserve plants in the face of climate change and biodiversity loss.

Apr 27, 2024

Why Can’t We Go Faster Than Light?

Posted by in categories: energy, physics, transportation

Imagine you’re in a car, pedal to the metal, racing down the highway, but no matter how hard you push, you can’t surpass the speed of the car next to you, which is effortlessly cruising at the same pace. Now, replace the car with light, and you have a real cosmic conundrum: why can’t anything go faster than light?

Back in 1905, Albert Einstein turned the world of physics upside down with his theory of relativity. This wasn’t just about E=mc² or the bending of space-time; it was about something that touches everything we do: the speed of light, which is roughly 299,792 kilometers per second. According to relativity, no matter how fast you’re moving towards or away from a light source, you will always measure the speed of light at the same constant velocity.

Continue reading “Why Can’t We Go Faster Than Light?” »

Apr 27, 2024

Hadge: a Comprehensive Pipeline For Donor Deconvolution in Single-Cell Studies

Posted by in categories: chemistry, genetics, neuroscience

Single-cell multiplexing techniques (cell hashing and genetic multiplexing) combine multiple samples, optimizing sample processing and reducing costs. Cell hashing conjugates antibody-tags or chemical-oligonucleotides to cell membranes, while genetic multiplexing allows to mix genetically diverse samples and relies on aggregation of RNA reads at known genomic coordinates. We develop hadge (hashing deconvolution combined with genotype information), a Nextflow pipeline that combines 12 methods to perform both hashing-and genotype-based deconvolution. We propose a joint deconvolution strategy combining best-performing methods and demonstrate how this approach leads to the recovery of previously discarded cells in a nuclei hashing of fresh-frozen brain tissue.

Apr 27, 2024

A 110-year-old man says he’s never had back pain and still drives his car every day. Here are his 6 longevity tips

Posted by in category: life extension

Vincent Dransfield, 110, lives alone and drives his car every day. He credits movement, milk, and strong relationships with giving him longevity.

Apr 27, 2024

Finding the Catalyst for a More Sustainable Future

Posted by in categories: materials, sustainability

Scientists explore alternative catalyst materials for affordable, stable hydrogen fuel cells.

Apr 27, 2024

Does AI Know What an Apple Is? She Aims to Find Out

Posted by in categories: materials, robotics/AI

The computer scientist Ellie Pavlick is translating philosophical concepts such as “meaning” into concrete, testable ideas.

Apr 27, 2024

NASA Engineer Claims Major Discovery Of New Force In Physics, But Many Aren’t Convinced

Posted by in category: physics

The team claims to have generated 1G of thrust without any propellant. If true, it would be revolutionary.

Apr 27, 2024

China’s S1 robot displays ‘human-like’ speed and precision

Posted by in category: robotics/AI

Astrobot’s S1 humanoid showcases unprecedented speed and dexterity in household tasks, marking a notable advancement in robotics.

Apr 27, 2024

Common Blood Pressure Drug Increases Lifespan And Slows Aging in Animals

Posted by in categories: biotech/medical, food, life extension

The hypertension drug rilmenidine has been shown to slow down aging in worms, an effect that in humans could hypothetically help us live longer and keep us healthier in our latter years.

Previous research has shown rilmenidine mimics the effects of caloric restriction on a cellular level. Reducing available energy while maintaining nutrition within the body has been shown to extend lifespans in several animal models.

Whether this translates to human biology, or is a potential risk to our health, is a topic of ongoing debate. Finding ways to achieve the same benefits without the costs of extreme calorie cutting could lead to new ways to improve health in old age.

Apr 27, 2024

Microsoft Warns Windows Users Of Ongoing Russian Hack Attack

Posted by in category: cybercrime/malcode

Russian military intelligence hackers have been exploiting a Windows vulnerability since at least 2020 according to a new Microsoft report. Here’s what you need to know.

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