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Archive for the ‘biological’ category: Page 7

May 10, 2024

Solving a Long-Standing Marine Mystery: New Insights Into Rhizobia-Diatom Symbiosis

Posted by in categories: biological, food

A groundbreaking study reveals that Rhizobia bacteria can fix nitrogen in partnership with marine diatoms, a discovery that could have significant implications for agriculture and marine ecosystems.

Nitrogen is an essential component of all living organisms. It is also the key element controlling the growth of crops on land, as well as the microscopic oceanic plants that produce half the oxygen on our planet.

Atmospheric nitrogen gas is by far the largest pool of nitrogen, but plants cannot transform it into a usable form. Instead, crop plants like soybeans, peas and alfalfa (collectively known as legumes) have acquired Rhizobial bacterial partners that “fix” atmospheric nitrogen into ammonium. This partnership makes legumes one of the most important sources of proteins in food production.

May 9, 2024

The Contractile Forces of Life: New Discovery Reshapes Our Understanding of Embryo Formation

Posted by in categories: biological, genetics

A breakthrough study by the Institut Curie reveals that embryonic cell compaction in humans is caused by cell contraction, offering new insights to enhance assisted reproductive technology success rates.

In human development, the compaction of embryonic cells is a vital process in the early stages of an embryo’s formation. Four days post-fertilization, the cells tighten together, helping to form the embryo’s initial structure. If compaction is flawed, it can hinder the development of the essential structure needed for the embryo to attach to the uterus. During assisted reproductive technology (ART), this stage is meticulously observed before the embryo is implanted.

An interdisciplinary research team led by scientists at the Genetics and Developmental Biology Unit at the Institut Curie (CNRS/Inserm/Institut Curie) studying the mechanisms at play in this still little-known phenomenon has made a surprising discovery: human embryo compaction is driven by the contraction of embryonic cells. Compaction problems are therefore due to faulty contractility in these cells, and not a lack of adhesion between them, as was previously assumed. This mechanism had already been identified in flies, zebrafish, and mice, but is a first in humans.

May 7, 2024

Reversing Biological Age: Have we finally found the answer?? | 30 — LTW #5

Posted by in categories: biological, life extension

Not a happy vid for E5. It appears to be something to make one healthy and as a result get extra time which is a good thing. But its testing standards could have been better and its off to some kind of skin care target.

May 7, 2024

Attosecond core-level spectroscopy reveals real-time molecular dynamics

Posted by in categories: biological, chemistry, particle physics

Chemical reactions are complex mechanisms. Many different dynamic processes are involved, affecting both the electrons and the nucleus of the present atoms. Very often, the strongly coupled electron and nuclear dynamics induce radiation-less relaxation processes known as conical intersections. Such dynamics, which are at the basis of many biological and chemical relevant functions, are extremely difficult to detect experimentally.

May 5, 2024

Dr. Jaime Yassif, Ph.D. — VP, Global Biological Policy and Programs, Nuclear Threat Initiative (NTI)

Posted by in categories: biological, biotech/medical, health, policy, security, surveillance

Working To Reduce Global Catastrophic Biological Risks — Dr. Jaime Yassif, Ph.D. — VP, Global Biological Policy and Programs, Nuclear Threat Initiative.


Dr. Jaime Yassif, Ph.D. serves as Vice President of Global Biological Policy and Programs, at the Nuclear Threat Initiative (https://www.nti.org/about/people/jaim…) where she oversees work to reduce global catastrophic biological risks, strengthen biosecurity and pandemic preparedness, and drives progress in advancing global health security.

Continue reading “Dr. Jaime Yassif, Ph.D. — VP, Global Biological Policy and Programs, Nuclear Threat Initiative (NTI)” »

May 3, 2024

Bioelectronic interfaces of organic electrochemical transistors

Posted by in categories: biological, chemistry, computing

The organic electrochemical transistor stands out as a tool for constructing powerful biosensors owing to its high signal transduction ability and adaptability to various geometrical forms. However, the performance of organic electrochemical transistors relies on stable and seamless interfaces with biological systems. This Review examines strategies to improve and optimize interfaces between organic electrochemical transistors and various biological components.

May 3, 2024

Scientists have revived 100-million-year-old marine microbes

Posted by in category: biological

In one of the ocean’s most lifeless places, scientists discover and resuscitate ancient organisms.

May 2, 2024

Andy Clark — Can Consciousness be Non-Biological?

Posted by in categories: biological, neuroscience

Listen to new episodes of the Closer To Truth on the go wherever you get your podcasts: https://shorturl.at/hwGP3

If consciousness is 100% physical, we would have to conclude that the same kind of consciousness that we experience as humans can be generated by non-biological entities (eventually). Conversely, if non-biological consciousness would somehow, someday, prove impossible, then consciousness would have to embed some nonphysical aspect. But how would we ever know?

Continue reading “Andy Clark — Can Consciousness be Non-Biological?” »

May 1, 2024

Marriage of synthetic biology and 3D printing produces programmable living materials

Posted by in categories: 3D printing, bioengineering, biological, genetics, sustainability

Scientists are harnessing cells to make new types of materials that can grow, repair themselves and even respond to their environment. These solid “engineered living materials” are made by embedding cells in an inanimate matrix that’s formed in a desired shape. Now, researchers report in ACS Central Science that they have 3D printed a bioink containing plant cells that were then genetically modified, producing programmable materials. Applications could someday include biomanufacturing and sustainable construction.

May 1, 2024

Robot Masters Terrain with Animal-Like Gait Transitions

Posted by in categories: biological, robotics/AI

Summary: Researchers leveraged deep reinforcement learning (DRL) to enable a robot to adaptively switch gaits, mimicking animal movements like trotting and pronking, to traverse complex terrains effectively. Their study explores the concept of viability—or fall prevention—as a primary motivator for such gait transitions, challenging previous beliefs that energy efficiency is the key driver.

This novel approach not only enhances the robot’s ability to handle challenging terrains but also provides deeper insights into animal locomotion. The team’s findings suggest that prioritizing fall prevention may lead to more agile and efficient robotic and biological movement across uneven surfaces.

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