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Updates every hour. Last Updated: 22-Oct-2026 16:16 ET (22-Oct-2026 20:16 GMT/UTC)
Gapless tunable intense terahertz pulse generation in strained diamond
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CASThe generation of high-intensity, ultrashort, coherent terahertz pulses in the 5-15 THz frequency range presents a formidable challenge in ultrafast science. Recently, researchers have introduced a novel scheme for generating intense, broadband THz pulses over a gapless wide spectral range based on collinear phase matched Raman-resonance-enhanced four-wave mixing (R-FWM) in strained diamond, providing a scalable route toward high-field THz sources for driving and interrogating complex dynamics in matter.
- Journal
- Light: Science & Applications
- Funder
- National Natural Science Foundation of China, National Key Research and Development Program of China, Shanghai Municipal Science and Technology
Revolutionising building cooling: PolyU’s award-winning AI delivers major energy savings
The Hong Kong Polytechnic University- Journal
- Energy and Buildings
Virtual reality reveals the role of stress in selecting the memories we store and the details we remember
Universitat Oberta de Catalunya (UOC)- Journal
- Virtual Reality
Antibacterial and anticancer potentials of graphene-silicon nitride nanomaterials-enhanced polymer nanocomposites
KeAi Communications Co., Ltd.Hybrid nanomaterials (HNMs) have become more interesting to researchers for various optoelectronic and biological applications. In response, this investigation focuses on the impact of loading ratios of (0, 1 %, 3 %, and 5 %) of HNMs from graphene oxide (GO) and silicon nitride (Si3N4). HNMs are utilized to reinforce blended polymers, including polyethylene oxide (PEO), carboxymethyl cellulose (CMC), and nano-polyaniline (PANI) to fabricate (PEO100K–CMC–PANI/GO–Si3N4) using the developed sol–gel-ultrasonic procedure. X-ray diffraction revealed semi-crystalline behavior among all samples, while Fourier transform infrared spectroscopy showed strong physical interfacial interactions among the sample components. Meanwhile, field emission scanning electron and transmission electron microscopies showed a fine dispersion and a homogeneous matrix with significant changes. The optical absorption behavior revealed continuous high absorption peaks at 200–280-nm wavelengths, which strongly impacts (GO–Si3N4). Increases in concentration also strongly impact (GO–Si3N4), which results in an improved optical energy gap for the allowed and forbidden transitions from 3.5 eV for the blended polymer to 3 and 2.9 eV by increasing the HNM content. The contributions of HNMs notably enhance the ability to reduce the zones of the bacteria, especially Escherichia coli, from 18 to 26 mm. In effect, HNMs with a concentration higher than 5 % assist in inhibiting the growth of lung cancer (A549) cells. As such, these NCs present good optical behavior for multi-applications, such as biosensors and biological and optoelectronic devices.
- Journal
- Journal of Biosafety and Biosecurity
Study reveals an “Intention–behavior gap” in clinical teachers’ adoption of AI-assisted teaching
Society of China University JournalsArtificial intelligence is quickly moving into medical education. Hospitals and medical schools are exploring how AI can help generate cases, prepare teaching materials, design assessments, and support more personalized learning. But for clinical teachers, being open to AI does not necessarily mean using it in day-to-day teaching.
A new study published in the Chinese Journal of Medical Education Research highlights that gap. Researchers from Peking University First Hospital conducted a questionnaire survey among clinical teachers at a university-affiliated hospital, distributing 359 questionnaires and collecting 335 valid responses and found that teachers reported relatively high willingness to adopt AI-assisted teaching, but much lower levels of actual use. The finding points to a practical challenge for medical education: AI tools may be widely discussed and increasingly accessible, but their integration into clinical teaching still depends on trust, support, and usable implementation pathways.
End-to-end congestion control in datacenter networks: a survey
Higher Education PressIn data center networks, the growth rate of switch buffer size is much smaller than that of network bandwidth capacity. This results in frequent network congestion, which requires congestion control. Currently, the classification of end-to-end congestion control protocols is based on single dimensions such as time or congestion arbitration subjects.
- Journal
- Frontiers of Computer Science
Breakthrough in efficient GNN training architecture: research team proposes hardware-algorithm co-optimization solution
Higher Education PressA Chinese research team has achieved a breakthrough in improving the training efficiency of Graph Neural Networks (GNNs). They introduced an innovative architecture named "Decentralized Hypercube Collaborative Framework," addressing long-standing challenges such as high memory overhead, low computational efficiency, and underutilized hardware resources in traditional Graph Convolutional Network (GCN) training.
- Journal
- Frontiers of Computer Science
"I can't watch the sunset with my friends": Polish families living in Spain
SWPS UniversityEmigration often means a profound life upheaval. What challenges do Polish families face after moving to Spain? A researcher from SWPS University, in collaboration with her doctoral supervisors and a researcher from the University of Almería, analysed the family dynamics between children and their parents, and observed that life in a foreign country is not free from intergenerational conflicts. Parents are committed to maintaining contact with their Polish roots, while young people strive to develop their autonomy, and properly nurturing biculturalism turns out to be crucial.
- Journal
- Journal of Adolescent Research