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Jul 19, 2023

Researchers craft ‘origami DNA’ to control virus assembly

Posted by in category: biotech/medical

Griffith University researchers have played a key role in using DNA “origami” templates to control the way viruses are assembled.

The global team behind the research, titled “DNA-origami-directed virus capsid polymorphism,” published in Nature Nanotechnology, developed a way to direct the assembly of virus capsids—the shell of viruses—at physiological conditions in a precise and programmable manner.

Dr. Frank Sainsbury and Dr. Donna McNeale from the Griffith Institute for Drug Discovery were part of the research team and said forcing viruses to assemble onto DNA folded into different shapes “like origami” was a question that this project answered.

Jul 19, 2023

Study provides clues to the neural basis of consciousness

Posted by in categories: food, neuroscience

More than a quarter of all stroke victims develop a bizarre disorder -; they lose conscious awareness of half of all that their eyes perceive.

After a stroke in the brain’s right half, for example, a person might eat only what’s on the right side of the plate because they’re unaware of the other half. The person may see only the right half of a photo and ignore a person on their left side.

Surprisingly, though, such stroke victims can emotionally react to the entire photo or scene. Their brains seem to be taking it all in, but these people are consciously aware of only half the world.

Jul 19, 2023

Psychological study suggests arithmetic is biologically-based and a natural consequence of our perception

Posted by in categories: engineering, mathematics

Everyone knows that 2 + 2 = 4, but why do we have arithmetic in the first place, and why is it true? Researchers at the University of Canterbury have recently answered these questions by “reverse engineering” arithmetic from a psychological perspective. To do this, they considered all possible ways that quantities could be combined, and proved (for the first time in mathematical terms) that addition and multiplication are the simplest.

Their is based on four —principles of perceptual organization—that shape how we and other animals experience the world. These assumptions eliminate all possibilities except arithmetic, like how a sculptor’s work reveals a statue hidden in a block of stone.

Monotonicity is the idea of “things changing in the same direction,” and helps us keep track of our place in the world, so that when we approach an object it looms larger but smaller when we move away. Convexity is grounded in intuitions of betweenness. For example, the four corners of a football pitch define the playing field even without boundary lines connecting them. Continuity describes the smoothness with which objects seem to move in space and time. Isomorphism is the idea of sameness or analogy. It’s what allows us to recognize that a cat is more similar to a dog than it is to a rock.

Jul 19, 2023

Exotic pentaquark particle found at CERN’s Large Hadron Collider

Posted by in category: particle physics

A new type of particle called the strange pentaquark has been found using the Large Hadron Collider. The particle could help researchers catalogue the states of exotic matter and figure out how fundamental particles stick together.

By Leah Crane

Jul 19, 2023

Where quantum computing is already delivering value

Posted by in categories: computing, quantum physics

While gate model quantum computing holds immense promise for tomorrow, quantum annealing systems are solving complex optimization problems for enterprises today.

Jul 19, 2023

Blood Clot Symptoms to Know

Posted by in category: biotech/medical

Blood clots can be deadly medical emergencies that can form in different parts of your body. Learn the warning signs that you might have one.

Jul 19, 2023

Rare case of Myasthenia Gravis with Thymoma at Fortis, Vashi ft Dr Prriya Eshpuniyani

Posted by in category: biotech/medical

Akash Ingale, was admitted to Fortis Hospital, Vashi, diagnosed with the unusual combination of Myasthenia Gravis and Thymoma. Myasthenia Gravis is a chronic autoimmune neuromuscular disease causing muscle weakness, typically affecting older individuals, making it rare in young patients like Akash. Moreover, the presence of Thymoma in conjunction with Myasthenia Gravis is even rarer, occurring in only 10–12% of cases. For the past eight months, Akash faced significant mobility challenges, severely impacting his quality of life. Managing the conditions required him to be on multiple drug regimens, including steroids and immunosuppressants, further affecting his well-being.

In this video, Dr Prriya Eshpuniyani, Consultant-Thoracic OncoSurgeon Fortis Hospital, Vashi, Navi Mumbai talks about case history, challenges, prognosis.

Jul 19, 2023

Cryo-EM Research May Help Develop Antiviral Therapy against HIV

Posted by in category: biotech/medical

Jul 19, 2023

Osteoporosis Drug Prevents Breast Cancer Resistance to Existing Treatment

Posted by in category: biotech/medical

Jul 19, 2023

Will AI make MC the MVP of particle physics?

Posted by in categories: mathematics, particle physics, robotics/AI

Originally developed nearly a century ago by physicists studying neutron diffusion, Monte Carlo simulations are mathematical models that use random numbers to simulate different kinds of events. As a simple example of how they work, imagine you have a pair of six-sided dice, and you’d like to determine the probability of the dice landing on any given number.

“You take your dice, and you repeat the same exercise of throwing them on the table, and you look at the outcome,” says Susanna Guatelli, associate professor of physics at the University of Wollongong in Australia.

By repeating the dice-throwing experiment and recording the number of times your dice land on each number, you can build a “probability distribution”—a list giving you the likelihood your dice will land on each possible outcome.