Archive for the ‘biological’ category: Page 3

Dec 21, 2023

A new mathematical language for biological networks

Posted by in categories: biological, evolution, genetics, health, mathematics

A team of researchers around Berlin mathematics professor Michael Joswig is presenting a novel concept for the mathematical modeling of genetic interactions in biological systems. Collaborating with biologists from ETH Zurich and Carnegy Science (U.S.), the team has successfully identified master regulators within the context of an entire genetic network.

The research results provide a coherent theoretical framework for analyzing biological networks and have been published in the Proceedings of the National Academy of Sciences.

It is a longstanding goal of biologists to determine the key genes and species that have a decisive impact on evolution, ecology, and health. Researchers have now succeeded in identifying certain genes as master regulators in biological networks. These key regulators exert greater control within the system and steer essential cellular processes. Previous studies have mainly focused on pairwise interactions within the system, which can be strongly affected by genetic background or biological context.

Dec 20, 2023

A New Brain-Like Supercomputer Aims to Match the Scale of the Human Brain

Posted by in categories: biological, neuroscience, supercomputing

A supercomputer scheduled to go online in April 2024 will rival the estimated rate of operations in the human brain, according to researchers in Australia. The machine, called DeepSouth, is capable of performing 228 trillion operations per second.

It’s the world’s first supercomputer capable of simulating networks of neurons and synapses (key biological structures that make up our nervous system) at the scale of the human brain.

DeepSouth belongs to an approach known as neuromorphic computing, which aims to mimic the biological processes of the human brain. It will be run from the International Center for Neuromorphic Systems at Western Sydney University.

Dec 20, 2023

Interdisciplinarity in biological physics

Posted by in categories: biological, physics

Research in biological physics often requires collaboration across different fields.

Dec 19, 2023

The Biggest Discoveries in Biology in 2023

Posted by in categories: biological, health, neuroscience

In a year packed with fascinating discoveries, biologists pushed the limits of synthetic life, probed how organisms keep time, and refined theories about consciousness and emotional health.

Dec 19, 2023

Growing Old Could Have Played a Critical Role in Our Evolution

Posted by in categories: biological, computing, life extension

Growing old may come with more aches and pains attached, but new research suggests there’s a bigger picture to look at: by reaching our dotage, we might actually be helping the evolution of our species.

Once assumed to be an inevitable consequence of living in a rough-and-tumble world, aging is now considered something of a mystery. Some species barely age at all, for example. One of the big questions is whether aging is simply a by-product of biology, or something that comes with an evolutionary advantage.

The new research is based on a computer model developed by a team from the HUN-REN Centre for Ecological Research in Hungary which suggests old age can be positively selected for in the same way as other traits.

Dec 19, 2023

Alex Rosenberg: Scientism, Naturalism, and Conscious Thought

Posted by in categories: biological, neuroscience

In this episode of the Smarter Not Harder Podcast, our guest Alex Rosenberg joins our host Boomer Anderson to give one-cent solutions to life’s $64,000 questions that include:\
What are the definitions of scientism and naturalism?\
Is there such a thing as free will, and if so, what implications does it have on the search for purpose in life?\
What is nice nihilism?\
Alex Rosenberg is an American philosopher and novelist. He is the R. Taylor Cole Professor of Philosophy at Duke University, and is well known for contributions in the philosophy of biology, as well as the philosophy of economics. He has also written several books, including \.

Dec 19, 2023

Ancient Insect Mysteries Solved: 312-Million-Year-Old Fossil Sheds Light on Behavior and Evolution

Posted by in categories: biological, evolution

Prehistoric insects, with their delicate and soft bodies, are challenging to preserve as fossils. While wings are more commonly fossilized, the bodies of these insects are often fragmented or incomplete, posing difficulties for scientific study. Paleontologists often rely on trace fossils to learn about these ancient insects, which are almost exclusively found as traces on fossil plants.

“We have a great fossil plant record,” said Richard J. Knecht, a Ph.D. candidate in the Department of Organismic and Evolutionary Biology at Harvard. “Further back in time, it’s the trace fossils that tell us more about the evolution and behavior of insects than the body fossils because plants and the trace fossils on them preserve very well. And the trace, as opposed to a body, won’t move over time and is always found where it was made.”

Dec 17, 2023

World’s first human brain-scale neuromorphic supercomputer is coming

Posted by in categories: biological, mathematics, robotics/AI, supercomputing

ICYMI: DeepSouth uses a #neuromorphiccomputing system which mimics biological processes, using hardware to efficiently emulate large networks of spiking #neurons at 228 trillion #Synaptic operations per second — rivalling the estimated rate of operations in the human brain.

Australian researchers are putting together a supercomputer designed to emulate the world’s most efficient learning machine – a neuromorphic monster capable of the same estimated 228 trillion synaptic operations per second that human brains handle.

As the age of AI dawns upon us, it’s clear that this wild technological leap is one of the most significant in the planet’s history, and will very soon be deeply embedded in every part of our lives. But it all relies on absolutely gargantuan amounts of computing power. Indeed, on current trends, the AI servers NVIDIA sells alone will likely be consuming more energy annually than many small countries. In a world desperately trying to decarbonize, that kind of energy load is a massive drag.

Continue reading “World’s first human brain-scale neuromorphic supercomputer is coming” »

Dec 14, 2023

Embedding nanodiamonds in polymer can advance quantum computing and biological studies

Posted by in categories: biological, computing, nanotechnology, particle physics, quantum physics

A nitrogen-vacancy (NV) center is a defect in the crystal structure of diamond, where a nitrogen atom replaces a carbon atom in the diamond lattice and a neighboring site in the lattice is vacant. This and other fluorescent defects in diamond, known as color centers, have attracted researchers’ attention owing to their quantum properties, such as single-photon emission at room temperature and with long coherence time. Their many applications include quantum information encoding and processing, and cell marking in biological studies.

Microfabrication in diamond is technically difficult, and nanodiamonds with color centers have been embedded in custom-designed structures as a way of integrating these quantum emitters into photonic devices. A study conducted at the University of São Paulo’s São Carlos Institute of Physics (IFSC-USP) in Brazil has established a method for this, as described in an article published in the journal Nanomaterials.

“We demonstrated a method of embedding fluorescent nanodiamonds in designed for this purpose, using two-photon polymerization [2PP],” Cleber Mendonça, a professor at IFSC-USP and last author of the article, told Agência FAPESP. “We studied the ideal concentration of nanodiamond in the photoresist to achieve structures with at least one fluorescent NV center and good structural and optical quality.” The photoresist is a light-sensitive material used in the fabrication process to transfer nanoscale patterns to the substrate.

Dec 12, 2023

The biological control of living systems calls for new laws of statistical mechanics

Posted by in category: biological

Multidisciplinary residential programmes and workshops help advance all the fields involved.

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