Archive for the ‘biological’ category

Oct 23, 2021

This New Flexible Alloy Can Heal Itself And Prevent Steel Corrosion

Posted by in categories: biological, materials

Scientists at Rice University have created a material that will protect steel from corrosion. In fact, it will also be flexible and heal itself when damaged.

This material will be used as a coating and is made from a lightweight sulfur-selenium alloy. It will be able to block moisture and chlorine-like zinc-and chromium-based coatings, protect steel under seawater-like conditions like polymer-based coatings, keep it from microbe-induced corrosion.

The experiments carried out before the results comprised putting small slabs of common mild steel coated with sulfur-selenium alloy in seawater for a month, along with an uncoated slab of steel as a control. The coated steel did not oxidize.

Continue reading “This New Flexible Alloy Can Heal Itself And Prevent Steel Corrosion” »

Oct 23, 2021

First Seal of Historic SAM Analog at Biosphere 2 — Kai Staats — 2021 Mars Society Virtual Convention

Posted by in categories: biological, chemistry, economics, food, government, habitats, space

Title: A data analysis of the first hermetic seal of SAM–a hi-fidelity, hybrid physicochemical and bioregenerative human habitat analog at the Biosphere 2

Track Code: AM-8

Continue reading “First Seal of Historic SAM Analog at Biosphere 2 — Kai Staats — 2021 Mars Society Virtual Convention” »

Oct 22, 2021

Researchers successfully build four-legged swarm robots

Posted by in categories: biological, robotics/AI

As a robotics engineer, Yasemin Ozkan-Aydin, assistant professor of electrical engineering at the University of Notre Dame, gets her inspiration from biological systems. The collective behaviors of ants, honeybees and birds to solve problems and overcome obstacles is something researchers have developed in aerial and underwater robotics. Developing small-scale swarm robots with the capability to traverse complex terrain, however, comes with a unique set of challenges.

In research published in Science Robotics, Ozkan-Aydin presents how she was able to build multi-legged robots capable of maneuvering in challenging environments and accomplishing collectively, mimicking their natural-world counterparts.

“Legged robots can navigate challenging environments such as rough terrain and tight spaces, and the use of limbs offers effective body support, enables rapid maneuverability and facilitates obstacle crossing,” Ozkan-Aydin said. “However, legged robots face unique mobility challenges in terrestrial environments, which results in reduced locomotor performance.”

Oct 20, 2021

Earth’s demise could rid galaxy of meaning, warns Brian Cox ahead of Cop26

Posted by in categories: biological, space

“If you accept that meaning is something that emerges from sufficiently complex biological machines, then the only place those machines might exist is here; then it’s correct to say that if this planet weren’t here, we’d live in a meaningless galaxy. That’s different to life. There’s a difference between life and intelligent life.”

Unique events that led to civilisation mean its demise could ‘eliminate meaning in galaxy for ever’.

Continue reading “Earth’s demise could rid galaxy of meaning, warns Brian Cox ahead of Cop26” »

Oct 19, 2021

AI chatbot justifies sacrificing colonists to create a biological weapon…if it creates jobs

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

An AI chatbot for ethics developed by the Allen Institute for AI has some interesting responses, to say the least.

Oct 19, 2021

Artificial networks learn to smell like the brain

Posted by in categories: biological, robotics/AI

Using machine learning, a computer model can teach itself to smell in just a few minutes. When it does, researchers have found, it builds a neural network that closely mimics the olfactory circuits that animal brains use to process odors.

Animals from fruit flies to humans all use essentially the same strategy to process olfactory information in the brain. But neuroscientists who trained an artificial neural network to take on a simple odor classification task were surprised to see it replicate biology’s strategy so faithfully.

Full Story:

Continue reading “Artificial networks learn to smell like the brain” »

Oct 16, 2021

Creating Generative Art NFTs from Genomic Data

Posted by in categories: biological, biotech/medical, bitcoin, cryptocurrencies, habitats, information science

In this post I outline my journey creating a dynamic NFT on the Ethereum blockchain with IPFS and discuss the possible use cases for scientific data. I do not cover algorithmic generation of static images (you should read Albert Sanchez Lafuente’s neat step-by-step for that) but instead demonstrate how I used Cytoscape.js, Anime.js and genomic feature data to dynamically generate visualizations/art at run time when NFTs are viewed from a browser. I will also not be providing an overview of Blockchain but I highly recommend reading Yifei Huang’s recent post: Why every data scientist should pay attention to crypto.

W h ile stuck home during the pandemic, I’m one of the 10 million that tried my hand at gardening on our little apartment balcony in Brooklyn. The Japanese cucumbers were a hit with our neighbors and the tomatoes were a hit with the squirrels but it was the peppers I enjoyed watching grow the most. This is what set the objective for my first NFT: create a depiction of a pepper that ripens over time.

How much of the depiction is visualization and how much is art? Well that’s in the eye of the beholder. When you spend your days scrutinizing data points, worshiping best practices and optimizing everything from memory usage to lunch orders it’s nice to take some artistic license and make something just because you like it, which is exactly what I’ve done here. The depiction is authentically generated from genomic data features but obviously this should not be viewed as any kind of serious biological analysis.

Oct 16, 2021

Genetics and Skeletal Biology Debunks Popular Theory of Native American Origins

Posted by in categories: biological, genetics

Latest scientific findings suggest the ancestral Native American population does not originate in Japan, as believed by many archaeologists.

A widely accepted theory of Native American origins coming from Japan has been attacked in a new scientific study, which shows that the genetics and skeletal biology “simply does not match-up.”

The findings, published on October 12 2021, in the peer-reviewed journal PaleoAmerica, are likely to have a major impact on how we understand Indigenous Americans’ arrival to the Western Hemisphere.

Continue reading “Genetics and Skeletal Biology Debunks Popular Theory of Native American Origins” »

Oct 14, 2021

“More Life Into a Time Without Boundaries.” Jeanette Winterson Considers the Bigger Picture of AI

Posted by in categories: biological, Ray Kurzweil, robotics/AI, singularity

In 2009—four years after it was published—I read Ray Kurzweil’s The Singularity Is Near. It is an optimistic view of the future—a future that depends on computational technology. A future of superintelligent machines. It is also a future where humans will transcend our present biological limits.

I had to read the book twice—once for the sense and once for the detail.

After that, just for my own interest, year-in, year-out, I started to track this future; that meant a weekly read through New Scientist, Wired, the excellent technology pieces in the New York Times and the Atlantic, as well as following the money via the Economist and Financial Times. I picked up any new science and tech books that came out, but it wasn’t enough for me. I felt I wasn’t seeing the bigger picture.

Continue reading “‘More Life Into a Time Without Boundaries.’ Jeanette Winterson Considers the Bigger Picture of AI” »

Oct 11, 2021

Scientists Revive 28,000-Year-Old Woolly Mammoth Cells in Mice

Posted by in categories: bioengineering, biological, genetics

Circa 2019 o.o

The dream of resurrecting species like the woolly mammoth via genetic engineering is old enough that I remember reading articles about it in school 30 years ago. We may never be able to recover enough pristine genetic material from an intact woolly mammoth to make that approach feasible, but scientists working on the remains of the frozen mammoth known as Yuka have taken an incredible step nonetheless, demonstrating that at least some cell functions can remain intact after nearly 30,000 years.

Yuka, found in 2,010 is a juvenile woolly mammoth, considered to be the most intact and well-preserved mammoth ever found. That was critical to the researchers’ efforts — earlier tests in 2009 with a less-well-preserved but younger specimen at 15,000 years old yielded no positive results at all.

Continue reading “Scientists Revive 28,000-Year-Old Woolly Mammoth Cells in Mice” »

Page 1 of 11112345678Last