Research on Orbital Angular Momentum Recognition Technology Based on a Convolutional Neural Network.

In underwater wireless optical communication (UWOC), a vortex beam carrying orbital angular momentum has a spatial spiral phase distribution, which provides spatial freedom for UWOC and, as a new information modulation dimension resource, it can greatly improve channel capacity and spectral efficiency. In a case of the disturbance of a vortex beam by ocean turbulence, where a Laguerre-Gaussian () beam carrying orbital angular momentum (OAM) is damaged by turbulence and distortion, which affects OAM pattern recognition, and the phase feature of the phase map not only has spiral wavefront but also phase singularity feature, the convolutional neural network (CNN) model can effectively extract the information of the distorted OAM phase map to realize the recognition of dual-mode OAM and single-mode OAM. The phase map of the Laguerre-Gaussian beam passing through ocean turbulence was used as a dataset to simulate and analyze the OAM recognition effect during turbulence caused by different temperature ratios and salinity.

PLHPP2 inhibits the stemness of colorectal cancer by inactivating the Nrf2 signaling pathway.

Pleckstrin homology (PH) domain leucine-rich repeat protein phosphatase 2 (PHLPP2) is a critical regulator of cellular homeostasis and acts as a tumor suppressor in multiple human cancers. However, its exact biological function in colorectal cancer (CRC) and the underlying molecular mechanism remain poorly understood. The correlation between the transcription and protein abundance of PHLPP2 was analyzed using proteomic and corresponding transcriptional data.