Scientists baffled at mysterious ancient creature that doesn't fit on the tree of life as we know it - Live Science

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Neurons are a motley crew, varying widely in connectivity and firing properties. But computational models of the brain usually treat neurons as identical. “The convention in the field is homogeneity,” says Scott Rich, assistant professor at the University of Connecticut. Heterogeneity makes models mathematically complex and unwieldy, so researchers have shied away from incorporating it, he says. “But it shouldn’t be [omitted] if we really want to understand how the brain works.”

We’re sharing this article early to provide faster access to peer-reviewed, accepted research. It is citable and carries a permanent DOI. This version is subject to further edits and will be replaced automatically by the final Version of Record. All legal disclaimers apply. AbstractLost circulation remains one of the most critical operational challenges in drilling engineering, yet predictive modeling in real-field conditions is often constrained by severely imbalanced and limited datasets. While previous studies have primarily relied on single imbalance-handling techniques or large datasets, this study introduces a sequential, hybrid data-centric machine learning framework specifically designed for small, multiclass, and highly skewed drilling datasets. A dataset of 258 operational records from the Buzergan oil field in southern Iraq, including drilling parameters, mud properties, and geological indicators, were used to predict lost circulation severity.

Scientists at the Max Planck Institute for the Science of Light (MPL) have achieved a breakthrough in quantum physics, developing a way to study individual molecules on a surface with extraordinary precision. For the first time, researchers have demonstrated that molecules attached to a surface can reach the ultimate quantum limit of optical coherence, overcoming a major obstacle that has long restricted molecular quantum research. The findings, published in Science, could open new possibilities for investigating how molecules interact with surfaces and developing advanced quantum technologies.