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Sep 6, 2023

Large Language Models in Molecular Biology

Posted by in categories: biotech/medical, internet, robotics/AI

Will we ever decipher the language of molecular biology? Here, I argue that we are just a few years away from having accurate in silico models of the primary biomolecular information highway — from DNA to gene expression to proteins — that rival experimental accuracy and can be used in medicine and pharmaceutical discovery.

Since I started my PhD in 1996, the computational biology community had embraced the mantra, “biology is becoming a computational science.” Our ultimate ambition has been to predict the activity of biomolecules within cells, and cells within our bodies, with precision and reproducibility akin to engineering disciplines. We have aimed to create computational models of biological systems, enabling accurate biomolecular experimentation in silico. The recent strides made in deep learning and particularly large language models (LLMs), in conjunction with affordable and large-scale data generation, are propelling this aspiration closer to reality.

LLMs, already proven masters at modeling human language, have demonstrated extraordinary feats like passing the bar exam, writing code, crafting poetry in diverse styles, and arguably rendering the Turing test obsolete. However, their potential for modeling biomolecular systems may even surpass their proficiency in modeling human language. Human language mirrors human thought providing us with an inherent advantage, while molecular biology is intricate, messy, and counterintuitive. Biomolecular systems, despite their messy constitution, are robust and reproducible, comprising millions of components interacting in ways that have evolved over billions of years. The resulting systems are marvelously complex, beyond human comprehension. Biologists often resort to simplistic rules that work only 60% or 80% of the time, resulting in digestible but incomplete narratives. Our capacity to generate colossal biomolecular data currently outstrips our ability to understand the underlying systems.

Sep 6, 2023

ADHD: A risk factor for serious mental health issues, research finds

Posted by in categories: food, health, neuroscience

The hyperactivity disorder, usually referred to as ADHD, is an independent risk factor for several common and serious mental health issues, finds research published in the open access journal BMJ Mental Health.

It is associated with , post , the eating disorder anorexia nervosa, and , the findings show, prompting the researchers to recommend vigilance by health professionals in a bid to ward off these disorders later on.

Attention-deficit/ (ADHD) is a neurodevelopmental condition in children and teens that extends into adulthood in up to around two thirds of cases. Worldwide, its prevalence is estimated to be around 5% in children/teens and 2.5% in adults.

Sep 6, 2023

Harnessing AI in the energy transition

Posted by in categories: climatology, robotics/AI, sustainability

Belinda Howell, Non-Executive Director at Digital Catapult, walks Reuters Plus through the potential that AI has to reduce carbon emissions and mitigate climate change.

Sep 6, 2023

Enhanced recovery program shown to successfully reduce opioid use after pancreatic cancer surgery

Posted by in category: biotech/medical

By improving hospital care pathways, researchers from The University of Texas MD Anderson Cancer Center successfully reduced inpatient opioid use by 50% after pancreatic cancer surgery and cut the median opioid prescription volumes at discharge to zero. This approach, described in a study published in JAMA Surgery, could help reduce the risk of long-term opioid dependence in patients.

In this , which involved 832 undergoing pancreatic resection surgery, the researchers investigated how making incremental modifications to post-surgery procedures affected the amounts of opioids used by inpatients and at the point of discharge.

In less than four years, the total inpatient oral morphine equivalents (OME) decreased from a median of 290 mg to 129 mg, while OME at discharge decreased from a median of 150 mg to 0 mg. Over 75% of patients were discharged with ≤ 50 mg OME, which is fewer than 10 pills.

Sep 6, 2023

Impact of Plant-Based Diets on Biological Aging

Posted by in categories: biotech/medical, food, life extension, neuroscience

In new research published in BMC Medicine, the authors recruited a large cohort of participants in order to assess how plant-based foods affect aging trajectories [1].

Previous research has shown that consumption of plant-based foods is associated with healthy aging [2,3]. It can also help to decrease the risk of mortality [4], prevent the development of chronic diseases [5,6], and improve neurological health, such as by lowering the risk of dementia [7] and cognitive impairment [8].

This new study aimed to determine the influence of a plant-based diet on the aging trajectory of the middle-aged Asian population. Researchers recruited over 10,000 people 50 years and older in Taiwan. Participants provided health data four times during the eight years after enrollment, underwent physical examinations, and filled out relevant questionnaires.

Sep 6, 2023

First neutrino observation at Large Hadron Collider

Posted by in category: particle physics

Physicists at CERN’s Large Hadron Collider (LHC) have made the first ever direct observation of neutrinos in a particle accelerator.

Neutrinos are tiny, near massless and chargeless particles. They are among the elementary particles that make up the Standard Model of particle physics. Of all the particles in the Standard Model, neutrinos are among the least understood.

Even seeing a neutrino is extremely difficult, despite the fact they are among the most numerous particles in the universe. An estimated 100 trillion (100 million million) neutrinos pass through your body every second!

Sep 6, 2023

It’s reassuring to think humans are evolution’s ultimate destination — but research shows we may be an accident

Posted by in category: evolution

We may have become the most complex living creature in part by accident and replication of error.

Sep 6, 2023

Study proves the difficulty of simulating random quantum circuits for classical computers

Posted by in categories: quantum physics, robotics/AI

Quantum computers, technologies that perform computations leveraging quantum mechanical phenomena, could eventually outperform classical computers on many complex computational and optimization problems. While some quantum computers have attained remarkable results on some tasks, their advantage over classical computers is yet to be conclusively and consistently demonstrated.

Ramis Movassagh, a researcher at Google Quantum AI, who was formerly at IBM Quantum, recently carried out a theoretical study aimed at mathematically demonstrating the notable advantages of quantum computers. His paper, published in Nature Physics, mathematically shows that simulating random quantum circuits and estimating their outputs is so-called #P-hard for classical computers (i.e., meaning that is highly difficult).

“A key question in the field of quantum computation is: Are quantum computers exponentially more powerful than classical ones?” Ramis Movassagh, who carried out the study, told Phys.org. “Quantum supremacy conjecture (which we renamed to Quantum Primacy conjecture) says yes. However, mathematically it’s been a major open problem to establish rigorously.”

Sep 6, 2023

What A General Diagonal Argument Looks Like (Category Theory)

Posted by in categories: computing, mathematics

Diagonal Arguments are a powerful tool in maths, and appear in several different fundamental results, like Cantor’s original Diagonal argument proof (there exist uncountable sets, or “some infinities are bigger than other infinities”), Turing’s Halting Problem, Gödel’s incompleteness theorems, Russell’s Paradox, the Liar Paradox, and even the Y Combinator.

In this video, I try and motivate what a general diagonal argument looks like, from first principles. It should be accessible to anyone who’s comfortable with functions and sets.

Continue reading “What A General Diagonal Argument Looks Like (Category Theory)” »

Sep 6, 2023

Major Milestone for Large Hadron Collider

Posted by in category: physics

Experts at Berkeley Lab finished winding more than 2000 kilometers of superconducting wire into cables for new magnets that will help upgrade the Large Hadron Collider and the search for new physics.