🤖 Computer Science

A dynamic graph structural framework for implicit sentiment identification based on complementary semantic and structural information

Implicit sentiment identification in text mining is challenging due to the lack of explicit sentiment words. The new dynamic graph structure framework (SIF) integrates semantic and structural information, constructs complementary graph structures, and dynamically refines them to reduce noise. SIF outperforms benchmarks in implicit sentiment tasks, achieving 95.73%, 85.37%, and 65.36% accuracy on three datasets.

SMooDi: Stylized Motion Diffusion Model

We introduce SMooDi, a Stylized Motion Diffusion model that generates diverse stylized motion from content texts and style sequences. SMooDi uses style guidance and a lightweight adaptor to ensure realism and style accuracy. Experiments show it outperforms existing methods in stylized motion generation.

⚛️ Physics and Chemistry

A gel for storing protein therapeutics

Researchers have developed a low-molecular-weight supramolecular gel that prevents protein therapeutics like insulin from aggregating when heated or shaken. This gel releases the drugs cleanly upon injection through a filter, potentially eliminating the need for cold storage. This finding could revolutionize protein therapeutic formulation.

Scientists develop fridge-free storage approach for vital medicines

Scientists have developed a hydrogel that stabilizes protein therapeutics, eliminating the need for refrigeration. This breakthrough, published in Nature, could improve drug accessibility in developing countries by allowing proteins to remain stable at temperatures up to 50°C and be shipped without losing effectiveness.

Researchers build ultralight drone that flies with onboard solar

Researchers have developed the CoulombFly, a solar-powered drone capable of hovering as long as the Sun shines. Despite its innovative design with solar cells, a voltage converter, and an electrostatic motor, it lacks onboard control and directed flight capability, making it unsuitable for practical use. The drone can be miniaturized, with a version weighing only 9 milligrams.

🧬 Biology & Medicine

We Can Now See How Psilocybin Changes the Brain

Researchers found that psilocybin significantly alters brain activity, particularly in areas related to the sense of self. This insight could enhance the use of psilocybin for treating mental health disorders like depression. Scientific interest in psychedelics has surged, with early studies showing promise in treating depression, substance use, and PTSD. Larger trials for psilocybin are currently underway, with results expected soon.

Study links circadian rhythm disruption to obesity and diabetes

A recent study in the Journal of Clinical Investigation reviewed how circadian disruption and clock genes affect metabolic health. Circadian rhythms, influenced by environmental cues like temperature and sunlight, can impact health when disrupted. The study compared evidence from animal models and epidemiological research to understand better how circadian disruption and gene expression contribute to metabolic health issues.

High-Fiber Foods Release Appetite-Suppressing Gut Hormone

A high-fiber diet significantly boosts the release of the appetite-suppressing hormone PYY more than a low-fiber diet, regardless of the food's form, according to new research. In the study, 10 healthy volunteers followed three different diets: high-fiber intact foods, high-fiber mashed/blended foods, and low-fiber processed foods, each for four days with washout periods in between. The high-fiber diets resulted in increased PYY release, highlighting the role of dietary fiber in regulating appetite.

🔭 Space & Astronomy

ISS could 'drift down' for a year before SpaceX vehicle destroys it in Earth's atmosphere

NASA plans to extend the operational life of the International Space Station (ISS) until the 2030s, despite plans for its replacement. The station will gradually descend from its current orbit over the course of 12 to 18 months. During this time, SpaceX's reentry vehicle will assist in pushing the ISS into Earth's atmosphere. Crew members will remain aboard as long as possible to maintain and ensure the station's health. They will depart about six months before the final reentry, when the ISS reaches approximately 220 kilometers (136 miles) above Earth, a lower altitude than its typical orbit of 400 kilometers (250 miles).

NASA Ships Moon Rocket Stage Ahead of First Crewed Artemis Flight

NASA achieved a milestone in its Artemis program by rolling out the core stage of the Space Launch System (SLS) rocket from Michoud Assembly Facility. The stage, crucial for the Artemis II test flight, was transported via NASA's Pegasus barge to Kennedy Space Center, covering over 900 miles. At Kennedy, engineers will integrate the core stage with other components of the rocket and Orion spacecraft in preparation for NASA's upcoming crewed mission to the Moon.

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