🤖 Computer Science

PMANet: a time series forecasting model for Chinese stock price prediction

PMANet is an advanced hybrid model for predicting stock prices, combining Multi-scale Timing Feature Convolution and Ant Particle Swarm Optimization to enhance accuracy and manage long sequences effectively. Tested on Chinese stocks, PMANet delivers predictions closely matching actual values, demonstrating its feasibility and versatility.

How Well Can Vision Language Models See Image Details?

LLM-based Vision-Language Models (VLMs) struggle with detailed image perception. By introducing a pixel value prediction task (PVP) and fine-tuning the vision encoder, researchers significantly improved VLM performance in tasks like image segmentation and video game decision making. Incorporating PVP in pre-training further boosted precision and effectiveness.

⚛️ Physics and Chemistry

Physicists detect nuclear decay in the recoil of a levitating sphere

Physicists in the US have developed a novel method to study nuclear decay by embedding radioactive atoms in a micron-sized object and measuring its recoil when a particle escapes. This technique leverages momentum conservation and could also help detect elusive neutral decay products like neutrinos and dark matter particles.

Uranium trichloride exhibits transient covalency when hot

New research shows that at high temperatures, uranium trichloride's uranium–chlorine bonds shrink and exhibit transient covalency. This finding is significant for improving nuclear reactor efficiency by using uranium trichloride as a liquid fuel. The study involved neutron scattering and computational experiments to understand the structural differences between its solid and molten states.

🧬 Biology & Medicine

Breakthrough molecule reverses Alzheimer's symptoms

UCLA Health researchers have identified a molecule that restored cognitive functions in mice with Alzheimer's symptoms by jumpstarting the brain's memory circuitry. If effective in humans, this compound could uniquely revitalize memory and cognition among Alzheimer's treatments.

3D-printed blood vessels bring artificial organs closer to reality

Harvard researchers have developed a method to 3D-print vascular networks with a core for fluid flow, surrounded by smooth muscle and endothelial cells, mimicking natural blood vessels. This advancement brings the creation of functional, implantable human organs closer to reality. The research is detailed in Advanced Materials.

WHO may declare new, deadlier mpox outbreak an international emergency

The WHO might declare a public health emergency due to a severe mpox outbreak in Africa, primarily affecting the DRC and spreading to neighboring countries. The new, more dangerous clade 1b is driving the increase in cases.

Breast-cancer cells enlist nerves to spread throughout the body

A study suggests that sensory nerves involved in touch, sight, hearing, and taste may help breast cancer cells spread to other body parts. The research, published in Nature, also found that a nausea drug can block these nerve-cancer interactions. This study highlights a novel way sensory nerves might aid tumor spread, distinct from previously known immune response mechanisms. Further research is needed to confirm these findings in humans.

🔭 Space & Astronomy

James Webb Space Telescope finds a shock near supermassive black hole (image)

Using the James Webb Space Telescope, astronomers have found that high-energy jets from a supermassive black hole, not the black hole itself, are heating the surrounding dust and gas in the galaxy ESO 428-G14. This unexpected discovery challenges previous theories about the source of this energy.

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