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Category: biological – Page 7

Cells Use ‘Bioelectricity’ To Coordinate and Make Group Decisions

According to the new results, as epithelial tissue grows, cells are packed more tightly together, which increases the electrical current flowing through each cell’s membrane. A weak, old, or energy-starved cell will struggle to compensate, triggering a response that sends water rushing out of the cell, shriveling it up and marking it for death. In this way, electricity acts like a health checkup for the tissue and guides the pruning process.

“This is a very interesting discovery — finding that bioelectricity is the earliest event during this cell-extrusion process,” said the geneticist GuangJun Zhang of Purdue University, who studies bioelectrical signals in zebra fish development and wasn’t involved in the study. “It’s a good example of how a widening electronic-signaling perspective can be used in fundamental biology.”

The new discovery adds to the growing assortment of bioelectrical phenomena that scientists have discovered playing out beyond the nervous system, from bacteria swapping signals within a biofilm to cells following electric fields during embryonic development. Electricity increasingly appears to be one of biology’s go-to tools for coordinating and exchanging information between all kinds of cells.

A protein found in the GI tract can neutralize many bacteria

The mucosal surfaces that line the body are embedded with defensive molecules that help keep microbes from causing inflammation and infections. Among these molecules are lectins—proteins that recognize microbes and other cells by binding to sugars found on cell surfaces.

One of these lectins, MIT researchers have found, has broad-spectrum antimicrobial activity against bacteria found in the GI tract. This lectin, known as intelectin-2, binds to sugar molecules found on bacterial membranes, trapping the bacteria and hindering their growth. Additionally, it can crosslink molecules that make up mucus, helping to strengthen the mucus barrier.

“What’s remarkable is that intelectin-2 operates in two complementary ways. It helps stabilize the mucus layer, and if that barrier is compromised, it can directly neutralize or restrain bacteria that begin to escape,” says Laura Kiessling, the Novartis Professor of Chemistry at MIT and the senior author of the study.

Strange New Side of Viral Evolution Revealed on the International Space Station

Viruses that infect bacteria can still do their job in microgravity, but space changes the rules of the fight.

In a new experiment conducted aboard the International Space Station, scientists found that viruses which infect bacteria can still successfully infect E. coli under near-weightless microgravity conditions. While infection still occurred, the interaction between viruses and bacteria unfolded differently than it does on Earth. The research, led by Phil Huss of the University of Wisconsin-Madison, U.S.A., was published today (January 13th) in the open-access journal PLOS Biology.

A microscopic arms race in an unusual environment.

Alkaline-loving microbes could help safeguard nuclear waste buried deep underground for thousands of years

Billions of alkaline-loving microbes could offer a new way to protect nuclear waste buried deep underground. This approach overcomes the limitations of current cement barriers, which can crack or break down over time.

One of the best ways to keep nuclear waste out of harm’s way is to bury it in geological disposal facilities. These are purpose-built containers in tunnels and vaults hundreds of meters underground. Cement is used to provide structural support, seal gaps and encapsulate waste containers. While cement is a strong material, groundwater eventually reacts with it, forming microscopic cracks and pores through which radiation could escape.

This problem is made worse because traditional cement is extremely alkaline (pH greater than 12) and corrosive, which can weaken nearby protective layers such as clay barriers, potentially compromising a facility.

The 6 Steps to Reach the Singularity. Ep #114

The 6 steps to reach the singularity.

## The technological singularity, a point where AI surpasses human intelligence, is predicted to occur by 2045 and will profoundly transform humanity, requiring proactive adaptation and integration of AI into daily life ## ## Questions to inspire discussion.

Advancing AI and Machine Learning.

🧠 Q: How can we progress towards autonomous machine learning? A: Shift from supervised to unsupervised learning, enabling AI to identify patterns and make predictions without labeled data, thus advancing towards independent learning and improvement.

🤖 Q: What is the significance of achieving Artificial General Intelligence (AGI)? A: AGI represents the pinnacle of AI development, capable of matching or surpassing human-level intelligence across various domains, potentially leading to an unprecedented technological growth boom.

🧬 Q: What are initial steps towards neural augmentation? A: Develop brain-interfacing technologies to enhance specific aspects of human cognition, such as implants or non-invasive devices for improving memory, processing speed, or sensory perception.

Continue reading “The 6 Steps to Reach the Singularity. Ep #114” | >

Commercially viable biomanufacturing: Designer yeast turns sugar into lucrative chemical 3-HP

Using a tiny, acid-tolerant yeast, scientists have demonstrated a cost-effective way to make disposable diapers, microplastics, and acrylic paint more sustainable through biomanufacturing.

A key ingredient in those everyday products is acrylic acid, an important industrial chemical that gives disposable diapers their absorbency, makes water-based paints and sealants more weather-proof, improves stain resistance in fabric, and enhances fertilizers and soil treatments.

Acrylic acid is converted from a precursor called 3-hydroxypropanoic acid, or 3-HP, which is made almost exclusively from petroleum through chemical synthesis—an energy-intensive process. But 3-HP can also be produced from renewable plant material by using engineered microbes to ferment plant sugars into this high-value chemical. Until now, however, the biomanufacturing process has not proven profitable.

Behind nature’s blueprints: Physicists create ‘theoretical rulebook’ of self-assembly

Inspired by biological systems, materials scientists have long sought to harness self-assembly to build nanomaterials. The challenge: the process seemed random and notoriously difficult to predict.

Now, researchers from the Institute of Science and Technology Austria (ISTA) and Brandeis University have uncovered geometric rules that act as a master control panel for self-assembling particles.

The results, which could find applications ranging from protein design to synthetic nanomachines, were published in Nature Physics.

The Syntellect Hypothesis: Five Paradigms of the Mind’s Evolution: Tuynman PhD, Antonin, Vikoulov, Alex M: 9781733426145: Amazon.com: Books

Celebrating a 7-year anniversary of the first edition of my book The Syntellect Hypothesis (2019)! I can’t help but feel like I’m watching a long-launched probe finally begin to transmit back meaningful data. What started as a speculative framework—half philosophy, half systems theory—has aged into something uncannily timely, as if reality itself had been quietly reading the manuscript and taking notes. In those seven years, AI has gone from clever tool to cognitive co-actor, collective intelligence has accelerated from metaphor to measurable force, and the idea of a convergent, self-reflective Syntellect no longer feels like science fiction so much as a working hypothesis under active experimental validation.

Looking back, the book captured a moment just before the curve went vertical. Looking forward, it reads less like a prediction and more like an early cartography of a terrain we’re now actively inhabiting. The signal is stronger, the noise louder, and the questions sharper—but the core intuition remains intact: intelligence doesn’t merely grow, it integrates. And once it does, history stops being a line and starts behaving more like a phase transition.

Here’s what Google summarizes about the book: The Syntellect Hypothesis: Five Paradigms of the Mind’s Evolution by Alex M. Vikoulov is a book that explores the idea of a future phase transition where human consciousness merges with technology to form a global supermind, or “Syntellect”. It covers topics like digital physics, the technological singularity, consciousness, and the evolution of humanity, proposing that we are on the verge of becoming a single, self-aware superorganism. The book is structured around five paradigms: Noogenesis, Technoculture, the Cybernetic Singularity, Theogenesis, and Universal Mind.

Key Concepts.

Syntellect: A superorganism-level consciousness that emerges when the intellectual synergy of a complex system (like humanity and its technology) reaches a critical threshold. Phase Transition: The book posits that humanity is undergoing a metamorphosis from individual intellect to a collective, higher-order consciousness.

Five Paradigms: The book is divided into five parts that map out this evolutionary journey: Noogenesis: The emergence of mind through computational biology. Technoculture: The rise of human civilization and technology. The Cybernetic Singularity: The point of Syntellect emergence. Theogenesis: Transdimensional propagation and expansion. Universal Mind: The ultimate cosmic level of awareness.

Themes and Scope.

Continue reading “The Syntellect Hypothesis: Five Paradigms of the Mind’s Evolution: Tuynman PhD, Antonin, Vikoulov, Alex M: 9781733426145: Amazon.com: Books” | >
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