Measurement of Very-High-Energy Diffuse Gamma-Ray Emissions from the Galactic Plane with LHAASO-WCDA.

The diffuse Galactic gamma-ray emission is a very important tool used to study the propagation and interaction of cosmic rays in the Milky Way. In this Letter, we report the measurements of the diffuse emission from the Galactic plane-covering Galactic longitudes from 15° to 235° and latitudes from -5° to +5°, in an energy range of 1 to 25 TeV-made with the Water Cherenkov Detector Array (WCDA) of the Large High Altitude Air Shower Observatory. After the sky regions of known sources are masked, the diffuse emission is detected with 24.

Room-Temperature Optically Detected Magnetic Resonance of Telecom Single-Photon Emitters in GaN.

Solid-state defects susceptible of spin manipulation hold great promise for scalable quantum technology. To broaden their utility, operation at room temperature and emission in the telecom wavelength range are desired, eliminating cryogenic requirements and leveraging existing optical fiber infrastructure for the transmission of quantum information. To that end, we report that telecom single-photon emitters (SPEs) in gallium nitride (GaN) exhibit optically detected magnetic resonance (ODMR) at room temperature.

Coulomb Field-Driven Desorption/Ionization by Femtosecond Laser for Mass Spectrometry Detection and Imaging.

Surface-assisted laser desorption/ionization (SALDI) offers promising prospects for mass spectrometry detection and imaging of small biomolecules, as it addresses most of the matrix-related issues encountered in conventional matrix-assisted laser desorption/ionization (MALDI). Currently, nearly all of the fundamental aspects and applications of SALDI depend on nanosecond (ns) lasers, whereas few efforts have been made to integrate ultrafast femtosecond (fs) lasers with SALDI. Therefore, the intrinsic fundamental principle remains poorly understood.

Interlayer confinement toward short hydrogen bond network construction for fast hydroxide transport.

Driven by boosting demands for sustainable energy, highly conductive hydroxide exchange membranes (HEMs) are urgently required in electrochemical conversion devices. The hydrogen bonds shorter than 2.5 angstrom are expected to accelerate the ion transport.

Perfluorobutanesulfonate Interfering with the Intestinal Remodeling During Metamorphosis via the Hypothalamic-Pituitary-Thyroid Axis.

The intestinal remodeling during amphibian metamorphosis is essential for adapting to various ecological niches of aquatic and terrestrial habitats. However, whether and how the widespread contaminant, perfluorobutanesulfonate (PFBS) affects intestinal remodeling remains unknown. In this study, tadpoles () at the G26 stage were exposed to environmentally relevant concentrations of PFBS (0, 1, 3, and 10 μg/L) until the end of metamorphosis.