Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Get the latest international news and world events from around the world.

Log in for authorized contributors

Scientists Visualize the Complex, Dynamic World Inside a Human Cell

The interactive image was created for Cell Signaling Technology, Inc., and was inspired by the work of David Goodsell, a professor of computational biology at Scripps Research Institute, who is widely recognized for his vibrant watercolor paintings of cells and viruses. Alongside some artistic interpretation, portions of the image were digitally rendered using datasets gathered through scientific methods.

“This 3D rendering of a eukaryotic cell is modeled using X-ray, nuclear magnetic resonance (NMR), and cryo-electron microscopy datasets for all of its molecular actors,” explains McGill. “It is an attempt to recapitulate the myriad pathways involved in signal transduction, protein synthesis, endocytosis, vesicular transport, cell-cell adhesion, apoptosis, and other processes.”

Although some online are calling it “the most detailed image of a human cell ever captured” Evan Ingersoll and Gael McGill emphasize that it’s really an educational tool. Elements of the cell have been simplified, and in some cases “squashed together,” to help viewers better understand what happens inside it.

Scientists Finally Figured Out Why 90% of Humans Are Right-Handed

Not to toot my own horn or anything, but I can extend my empathy beyond myself just enough to imagine someone else’s perspective, fully knowing I’ll never completely understand the texture of their experience. But as a right-handed person, I will never, ever be able to do that for left-handed people. There’s just something in my brain preventing me from understanding how someone can navigate the world primarily using the hand I mostly rely on to accidentally test the sharpness of kitchen knives.

So naturally, it always made sense to me that around 90 percent of humans are right-handed. What never made sense was why. According to new research published in PLOS Biology, we may have finally figured it out: humans became overwhelmingly right-handed because we started walking upright and developed massive brains.

Researchers from the University of Oxford analyzed more than 2,000 primates across 41 species, comparing handedness with factors like social behavior, diet, body size, and movement. Nothing fully explained humanity’s innate steadfast dedication to right-handedness until researchers started factoring in brain size and the ratio between leg and arm length.

AI Will Eat Social Media Alive

Social media is being consumed by AI from the inside out.

Over half of all new written content online is now AI-generated, and more than half of all internet traffic is bots.

Facebook’s most-viewed images are AI slop, YouTube recommends brainrot to new users, and global content farms churn out synthetic shock content for pennies.

The platforms aren’t fighting it because engagement is engagement, whether it comes from humans or machines.

Mark Zuckerberg is calling AI the \.

Mathematical modeling helps advance use of magnetic particles in targeted drug-delivery systems

A Florida State University computational scientist is paving the way for future medical breakthroughs by developing mathematical models and simulations to predict the behavior of a unique drug-delivery method, which aims to deploy treatments directly to targeted sites in the body.

Florida State University Associate Professor of Scientific Computing Bryan Quaife is part of a multi-institutional team of engineers, mathematicians and computational scientists conducting foundational research essential to the design of a drug-delivery system that could reduce medication side effects while increasing treatment efficacy. Their research expands on work proposing the use of magnetic particles to guide cell-like drug carriers toward a specific target, like a tumor.

This work, which was published in Physical Review Letters, reveals how tiny particles moving inside microscopic drug carriers can gradually stress and eventually rupture the enclosing membrane. These findings could help engineers design smarter drug-delivery systems to protect therapeutic cargo during transport and release it on demand at the desired location.

Molecular machinery in cardiac mitochondria reacts to metabolic stress in unexpected way

In a recent study published in Nature Communications, researchers at Karolinska Institutet report that the molecular machinery responsible for cellular energy conversion is more interconnected than previously understood, shedding light on how mitochondria adapt under stress.

Mitochondria generate most of the cell’s energy by converting nutrients into ATP, the molecule that powers nearly all cellular processes. Although ATP synthase and metabolic pathways such as the tricarboxylic acid (TCA) cycle have long been known to work together, they have generally been viewed as separate systems.

Nasal viruses may drive allergic rhinitis, and ribavirin shows early promise as a targeted spray treatment

Nasal commensal viruses may worsen allergic rhinitis by activating type I IFN-linked neutrophils and NET formation. Ribavirin reduced nasal viral abundance and improved symptoms in mice and in a small phase 2 trial.

How chromatin movement helps control gene expression

In a new study, MIT researchers have measured chromatin movement at timescales ranging from hundreds of microseconds to hours, allowing them to rigorously quantify those dynamics for the first time.

Their analysis revealed that chromatin can exist in two different categories: In one, chromatin moves in a constrained way that allows it to primarily contact only neighboring regions of the genome; in the other, chromatin moves more freely and contacts regions that are farther away, but only over longer timescales.

The findings offer insight into how gene expression is regulated, as well as how chromatin segments come together for other processes such as DNA repair, the researchers say.

Perovskite solar cells need decades-long durability. New work shows which fast-aging tests come closest

Perovskite solar cells (PSCs) could conquer the mass market within a few years, perhaps even being produced in Europe. Their large-scale production is highly cost-effective, and unlike silicon solar cells, their production is less energy-intensive. However, perovskite solar cells ideally need to achieve decades-long warranties, which remains a challenge.

To assess their long-term stability, various test methods are used to accelerate aging. But how accurately do these methods reflect the actual degradation processes? A new study in Joule by a team led by Dr. Carolin Ulbrich (HZB) and Andreas Bartelt (HTW Berlin) now answers this question.

/* */