Where the heck did all those structures inside complex cells come from?
There are competing theories about the origin of the nucleus and endoplasmic reticulum. Enlarge / Computer illustration of mitochondria, membrane-enclosed cellular organelles that produce energy. (credit: KATERYNA KON/SCIENCE PHO.....»»
3D bioprinting materials offer possibility for better bone and soft tissue repair
3D bioprinting is an advanced tissue engineering technique that builds complex tissues using bioactive substances like living cells and scaffolds. It provides personalized tissue repair solutions, reducing immune rejection by using patient-specific c.....»»
Cells use alternative splicing to regulate gene expression, research suggests
Alternative splicing is a genetic process where different segments of genes are removed, and the remaining pieces are joined together during transcription to messenger RNA (mRNA). This mechanism increases the diversity of proteins that can be generat.....»»
Ancient viral genomes preserved in glaciers reveal climate history—and how viruses adapt to climate change
As humans alter the planet's climate and ecosystems, scientists are looking to Earth's history to help predict what may unfold from climate change. To this end, massive ice structures like glaciers serve as nature's freezers, archiving detailed recor.....»»
How fruit flies use internal representations of head direction to support goal-directed navigation
Animal behavior is known to rely on transforming sensory information into motor commands, often influenced by an animal's internal needs. While in mammals and other large animals this process is supported by complex brain processes, simpler versions.....»»
Study finds RNA molecule controls butterfly wing coloration
A team of international researchers has uncovered a surprising genetic mechanism that influences the vibrant and complex patterns on butterfly wings. In a study published in the Proceedings of the National Academy of Sciences, the team, led by Luca L.....»»
U.S. delays final ruling to hike tariffs on EVs made in China
Higher duties of 100 percent on EVs, 50 percent on semiconductors and solar cells, and 25 percent on lithium ion batteries and key minerals, steel and aluminum, ship-to-shore cranes and syringes were set to take effect on Aug. 1......»»
Jaguar I-Pace fire risk leads to recall, instructions to park outdoors
The problem is similar to one that affected the Chevrolet Bolt in 2021. Enlarge / Jaguar sourced the I-Pace's battery cells from LG Energy Solutions. But now there's a problem with some of them. (credit: Jonathan Gitlin).....»»
AI tool maps out cell metabolism with precision
Understanding how cells process nutrients and produce energy—collectively known as metabolism—is essential in biology. Modern biology generates large datasets on various cellular activities, but integrating and analyzing the vast amounts of data.....»»
Researchers present a high-dimensional choice model for online retailing
In a new study, researchers developed a model that helps online retailers to more accurately predict customer purchases from a wide range of products in complex online shopping environments, reducing sales forecast errors by 10%–30% compared to tra.....»»
Q&A: Business expert shares insights from panel formed to examine infant formula crisis
Despite complex regulations for infant formula, contamination in production and supply chain issues at Abbott Nutrition created a dangerous shortage in 2022......»»
Observatory reveals key evidence of cosmic ray acceleration limit in W51 for first time
The Large High Altitude Air Shower Observatory (LHAASO) officially released the precise measurements of high-energy gamma radiation from the W51 complex, confirming it as a cosmic-ray accelerator boosting particles up to so-called ultra-high energies.....»»
Machine-learning models can predict colonization outcomes of complex microbial communities
Microbial communities are constantly exposed to the invasion of exogenous species, which can significantly alter their composition and function. The capacity of a microbial community to resist invasion is regarded as an emergent property resulting fr.....»»
Protein mutant stability can be inferred from AI-predicted structures
Researchers at the Center for Algorithmic and Robotized Synthesis within the Institute for Basic Science have taken a significant step forward in understanding the stability of proteins by leveraging the power of AI......»»
Compounds from nucleic acids in food show anticancer effects
When people eat, they ingest the nucleic acids that reside in all living things. The compounds in these acids could inhibit the growth of cancer cells, according to findings published in PLOS ONE by Osaka Metropolitan University Associate Professor A.....»»
Supercomputer simulations reveal the nature of turbulence in black hole accretion disks
Researchers at Tohoku University and Utsunomiya University have made a breakthrough in understanding the complex nature of turbulence in structures called accretion disks surrounding black holes, using state-of-the-art supercomputers to conduct the h.....»»
Researchers map 50,000 of DNA"s mysterious "knots" in the human genome
Researchers have mapped 50,000 of DNA's mysterious "knots" in the human genome. The innovative study of DNA's hidden structures may open up new approaches for treatment and diagnosis of diseases, including cancer......»»
Bacterial cells transmit "memories" to offspring, research finds
Bacterial cells can "remember" brief, temporary changes to their bodies and immediate surroundings, a new Northwestern University and University of Texas-Southwestern study has found......»»
Using high resolution mass spectrometry to study fuel chemistry
U.S. Naval Research Laboratory researcher Mark Romanczyk, Ph.D., developed new analytical methods to rapidly analyze fuels and complex petroleum products by using high-resolution mass spectrometry......»»
Simulation model shows ribosome tunnel"s impact on protein structures
Researchers at University of Tsukuba have developed a new model that simulates the internal environment of a ribosome—the cellular site of protein synthesis. Using computer simulations, they have analyzed the structures of various proteins within t.....»»
Dual protein analysis approach provides potential way to slow cancer growth
Fighting cancer effectively often involves stopping cancer cells from multiplying, which requires understanding proteins that the cells rely on to survive. Protein profiling plays a critical role in this process by helping researchers identify protei.....»»