🤖 Computer Science

Detection and mitigation of DDoS attacks based on multi-dimensional characteristics in SDN

This paper introduces a two-stage method for detecting and mitigating DDoS attacks in SDN. It first analyzes traffic statistics for initial detection, then uses a Multi-Dimensional Deep Convolutional Classifier for precise identification. The method also traces and isolates attack sources. Results show it is faster, more accurate, and more effective at mitigating attacks than traditional methods, enhancing network integrity.

AI method radically speeds predictions of materials’ thermal properties

Around 70% of global energy is wasted as heat. Predicting heat movement through semiconductors and insulators, which involves difficult-to-model phonons, could improve power generation efficiency. MIT researchers developed a machine-learning framework that predicts phonon dispersion relations up to 1,000 times faster than other AI methods and 1 million times faster than traditional approaches, with high accuracy.

⚛️ Physics and Chemistry

PFAS from rechargeable batteries pose environmental threat

PFAS, used in many lithium battery electrolytes, pose an environmental threat, according to a new report. Researchers urge removing PFAS from wastewater and adopting a holistic approach to green energy technology design to prevent unintentional harm. As the demand for lithium-ion batteries grows, choosing stable but environmentally harmful electrolytes like PFAS presents a challenge.

Lung images reveal how breathing distribution differs between the sexes

Electrical impedance tomography (EIT) is a non-invasive, radiation-free imaging technique used to assess lung function by monitoring regional ventilation and perfusion. While conventional imaging shows lung morphology, EIT tracks changes due to disease or therapy. Researchers from the University Medical Centre Schleswig-Holstein studied respiratory differences between men and women, finding key differences that should be considered in clinical EIT interpretations.

Quantum microscopy study makes electrons visible in slow motion

Physicists at the University of Stuttgart, led by Prof. Sebastian Loth, are developing quantum microscopy that records electron movement at the atomic level with high spatial and temporal resolution. This method could allow for more targeted material development. Their findings are published in Nature Physics.

🧬 Biology & Medicine

Early adult weight gain linked to poor heart health in later life, study finds

Research published in the European Heart Journal shows that people who gain excess weight from their 20s have less healthy hearts by their 60s, with links to enlarged hearts that pump blood less effectively. This effect is independent of being overweight in later years. The study, led by Professor Alun Hughes at UCL, monitored babies born in England, Scotland, and Wales in 1946 to examine the long-term impact of weight gain on heart health.

Enhanced Recovery Protocol Boosts Crohn's Surgery Outcomes

A German study evaluated an enhanced recovery protocol for ileocecal resection in Crohn's disease patients (n=83). The protocol included education, preoperative optimization, minimally invasive surgery, early mobilization, multimodal analgesia, and early oral feeding. Outcomes assessed were 30-day postoperative morbidity, hospital stay length, readmission rates, and severe complications.

🔭 Space & Astronomy

Seismic data shows Mars is often pummeled by planet-shaking meteorites

Mars experiences marsquakes, some of which are caused by meteorite impacts. Data from NASA’s InSight lander revealed six seismic events linked to meteorite strikes, identified as a new class of quakes called VF (very high frequency) events. These collisions occur much faster than tectonic quakes. This research, published in Nature, marks the first time seismic data has been used to determine the frequency of impact crater formation on Mars.

NASA rolls giant Artemis 2 moon rocket core off the factory floor for astronaut mission (video)

NASA's Space Launch System (SLS) Artemis 2 core stage, the first rocket to launch astronauts to the moon in over 50 years, has been transported from its New Orleans manufacturing facility to Kennedy Space Center, Florida. The 212-foot booster, featuring four RS-25 engines, was moved on July 16, 55 years after the Apollo 11 launch. It will now undergo vehicle integration and assembly for its planned launch next year.

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