Hainan Tropical Ocean University

JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova

Abstract We present panchromatic observations of the Type Ia supernova (SN Ia) 2023qov, ranging from ∼2 weeks before to ∼1 yr after maximum light. JWST near- and mid-infrared spectra at +276 and +363 days show ∼400 K dust emission that cools by ∼75 K between epochs, the first una...

Pressure‐Induced Topochemical Reconstruction for Quenchable Metastable ZnIn 2 S 4 With Enhanced Photoelectric Effect for Artificial Synapses Application

ABSTRACT Layered ternary sulfide ZnIn 2 S 4 is an attractive visible‐light semiconductor for photodetection, photocatalysis, and neuromorphic optoelectronics, but its photoelectric output is limited by inefficient carrier separation and sluggish carrier dynamics. Pressure offers...

Apiin from sugarcane leaves modulates postprandial hyperglycemia by targeting dipeptidyl peptidase IV, α ‐amylase, and α ‐glucosidase

Abstract BACKGROUND Postprandial hyperglycemia is a metabolic abnormality that can emerge early in the progression toward type 2 diabetes and is closely associated with insulin resistance. Sugarcane leaves, an underutilized by‐product of sugar production, are rich in flavonoids a...

Coffee Anthracnose-Associated Fungi from Wanning, Hainan: Fungicide Sensitivity and Broad-Spectrum Antagonism by Mangrove-Derived Streptomyces sp. CD103

Fungi associated with coffee leaf lesions provide a diverse target panel for evaluating fungicide sensitivity and microbial antagonism. This study evaluated the antagonistic spectrum of mangrove-derived Streptomyces sp. CD103 and fungicide sensitivity in selected lesion-associate...

Frontier Technologies in Medical Image Detection: Innovation, Clinical Practice and Practical Dilemmas

Against the background of precision medicine, medical image detection has become a core component of early disease screening, lesion quantification and therapeutic effect evaluation. Driven by artificial intelligence, sensor hardware and computational reconstruction algorithms, a...

When nationalism meets environmentalism: an inverted U-curve linking national sentiment to carbon emission intensity through an institutional lens

Against the backdrop of rising corporate carbon emissions, managerial attributes are garnering increasing scholarly scrutiny. Utilizing a panel dataset from China’s A-share market between 2010 and 2023, this paper employs an institutional theory perspective to examine the relatio...

Influence of Installation Parameters and Geometric Configurations on the Uplift Capacity of Helical Anchors: An Experimental Investigation

Recent studies have demonstrated that installation-induced soil disturbance, advancement ratio, and installation rate can substantially affect the subsequent axial response of helical piles. However, systematic experimental comparisons that simultaneously relate installation torq...

Deciphering teleost testis development throughout the annual cycle: Insights from transcriptomic features and thyroid hormone signaling pathway.

Testis development and spermatogenesis in adult teleosts are seasonally regulated throughout the annual reproductive cycle, with notable changes occurring in cellular composition and molecular characteristics. However, the molecular mechanisms underlying this process are not full...