БЛОГ

Archive for the ‘biological’ category: Page 68

Apr 3, 2023

Tiny hybrid robot can identify, capture a single cell

Posted by in categories: biological, robotics/AI

Researchers from Tel Aviv University, Israel, have created a micro-robot the size of a single biological cell that navigates using both electricity and magnetic fields and can identify and capture a single cell, opening the door to a vast array of applications.

Inspired by biological “swimmers” such as bacteria and sperm, the researchers developed a micro-robot (about 10 microns across) with the ability to move around the body autonomously or controlled by an operator.

Continue reading “Tiny hybrid robot can identify, capture a single cell” »

Apr 2, 2023

Scientists Baffled by New “Size of Life” Discovery About Our Planet’s Biomass

Posted by in categories: biological, materials

Life comes in all shapes in sizes, but some sizes are more popular than others, new research from the University of British Columbia (UBC) has found.

In the first study of its kind published today (March 29) in PLOS ONE, Dr. Eden Tekwa, who conducted the study as a postdoctoral fellow at UBC’s department of zoology, surveyed the body sizes of all Earth’s living organisms, and uncovered an unexpected pattern. Contrary to what current theories can explain, our planet’s biomass—the material that makes up all living organisms—is concentrated in organisms at either end of the size spectrum.

“The smallest and largest organisms significantly outweigh all other organisms,” said Dr. Tekwa, lead author of “The size of life,” and now a research associate with McGill University’s department of biology. “This seems like a new and emerging pattern that needs to be explained, and we don’t have theories for how to explain it right now. Current theories predict that biomass would be spread evenly across all body sizes.”

Mar 31, 2023

Nvidia Rides The Generative AI Wave At GTC

Posted by in categories: biological, chemistry, robotics/AI

This year’s NVIDIA GPU Technology Conference (GTC) could not have come at a more auspicious time for the company. The hottest topic in technology today is the Artificial Intelligence (AI) behind ChatGPT, other related Large Language Models (LLMs), and their applications for generative AI applications. Underlying all this new AI technology are NVIDIA GPUs. NVIDIA’s CEO Jensen Huang doubled down on support for LLMs and the future of generative AI based on it. He’s calling it “the iPhone moment for AI.” Using LLMs, AI computers can learn the languages of people, programs, images, or chemistry. Using the large knowledge base and based on a query, they can create new, unique works: this is generative AI.

Jumbo sized LLM’s are taking this capability to new levels, specifically the latest GPT 4.0, which was introduced just prior to GTC. Training these complex models takes thousands of GPUs, and then applying these models to specific problems require more GPUs as well for inference. Nvidia’s latest Hopper GPU, the H100, is known for training, but the GPU can also be divided into multiple instances (up to 7), which Nvidia calls MIG (Multi-Instance GPU), to allow multiple inference models to be run on the GPU. It’s in this inference mode that the GPU transforms queries into new outputs, using trained LLMs.

Nvidia is using its leadership position to build new business opportunities by being a full-stack supplier of AI, including chips, software, accelerator cards, systems, and even services. The company is opening up its services business in areas such as biology, for example. The company’s pricing might be based on use time, or it could be based on the value of the end product built with its services.

Mar 29, 2023

Octopus camouflage ability transferred to human skin cells

Posted by in categories: biological, chemistry

Squids and octopuses are masters of camouflage, blending into their environment to evade predators or surprise prey. Some aspects of how these cephalopods become reversibly transparent are still “unclear,” largely because researchers can’t culture cephalopod skin cells in the lab.

Today, however, researchers report that they have replicated the tunable transparency of some squid skin cells in mammalian cells, which can be cultured. The work could not only shed light on basic squid biology, but also lead to better ways to image many cell types.

The researchers will present their results at the spring meeting of the American Chemical Society (ACS). ACS Spring 2023 is a hybrid meeting being held virtually and in-person March 26–30, and features more than 10,000 presentations on a wide range of science topics.

Mar 29, 2023

10 Women Founders Taking The Synthetic Biology World

Posted by in categories: bioengineering, biological, food, health

Here’s a list of 10 visionary synbio company founders – who happen to be women – harnessing the power of biology to transform everything from health to human and animal nutrition, agriculture, haircare, bioremediation, and mining.

Mar 28, 2023

What If EVE Online Becomes Our Future?

Posted by in categories: biological, economics, entertainment, military, space travel

Play EVE Online: https://eve.online/Ridddle_EN

In this video, we explore the fascinating prospects of humanity becoming a proper interstellar civilization, up to Type III on the Kardashev scale. However, this transition process presents our species with a bunch of physical limitations, as well as societal and even biological implications. Many of them are quite unwanted or even ugly! We explore this vast topic by using the latest scientific models as well as the best science fiction worlds from books, TV shows, and even games. Speaking of which, to help us visualize this space-faring future with much-needed scale and fidelity, we turned to CCP Games — the creators of the massively multiplayer online game EVE Online. https://eve.online/Ridddle_EN. It is set in a rich sci-fi universe, where players can create their own character and explore a vast and complex virtual world built according to the well-thought set of consistent in-world rules The game is known for its intricate economy, politics, and warfare mechanics, where players can engage in a variety of activities, including mining resources, trading, building structures, and participating in battles. Quite frankly, the game feels like a real simulation of all those future endeavors humanity will face on the way to becoming a true interstellar species!

Mar 26, 2023

Tiny supercomputers could be made from the skeleton inside your cells

Posted by in categories: biological, singularity, supercomputing

Year 2018 😗😁 Biological singularity here we come 💜 😌 💕


Building a computer out of the skeletons that hold our cells together could make them smaller and far more energy efficient.

Mar 24, 2023

Asteroid discovery suggests ingredients for life on Earth came from space

Posted by in categories: biological, chemistry, space

March 21 (Reuters) — Two organic compounds essential for living organisms have been found in samples retrieved from the asteroid Ryugu, buttressing the notion that some ingredients crucial for the advent of life arrived on Earth aboard rocks from space billions of years ago.

Scientists said on Tuesday they detected uracil and niacin in rocks obtained by the Japanese Space Agency’s Hayabusa2 spacecraft from two sites on Ryugu in 2019. Uracil is one of the chemical building blocks for RNA, a molecule carrying directions for building and operating living organisms. Niacin, also called Vitamin B3 or nicotinic acid, is vital for their metabolism.

The Ryugu samples, which looked like dark-gray rubble, were transported 155 million miles (250 million km) back to Earth and returned to our planet’s surface in a sealed capsule that landed in 2020 in Australia’s remote outback for analysis in Japan.

Mar 24, 2023

Researchers develop method for deciphering positional rules in splicing

Posted by in category: biological

A research team led by Prof. Xue Yuanchao from the Institute of Biophysics of the Chinese Academy of Sciences has developed a new method for global profiling of in-situ RNA–RNA contacts associated with a specific RNA-binding protein (RBP) and revealed positional mechanisms by which PTBP1-associated RNA loops regulate cassette exon splicing.

This study was published online in Molecular Cell on March 22.

In , the same pre-mRNA can produce multiple protein isoforms to execute similar or different biological functions through . Several longstanding models proposed that RBPs may regulate alternative splicing by modulating long-range RNA–RNA interactions (RRI). However, direct experimental evidence was lacking.

Mar 23, 2023

Scientists at DeepMind and Meta Press Fusion of AI, Biology

Posted by in categories: biological, robotics/AI

“AlphaFold was a huge advance in protein structure prediction. We were inspired by the advances they made, which led to a whole new wave of using deep learning,” said Professor David Baker, a biochemist and computational biologist at the University of Washington.

“The advantage of ESMFold is that it is very fast, and so can be used to predict the structures of a larger set of proteins than AlphaFold, albeit with slightly lower accuracy, similar to that of RoseTTAFold,” Dr. Baker said, referring to a tool that emerged from his lab in 2021.

DeepMind open-sourced the code for AlphaFold2, making it freely available to the community. Nearly all proteins known to science—about 214 million—can be looked up in the public AlphaFold Protein Structure Database. Meta’s ESM Metagenomic Atlas includes 617 million proteins.

Page 68 of 228First6566676869707172Last