Electronic ferroelectricity in monolayer graphene moiré superlattices.

Extending ferroelectric materials to two-dimensional limit provides versatile applications for the development of next-generation nonvolatile devices. Conventional ferroelectricity requires materials consisting of at least two constituent elements associated with polar crystalline structures. Monolayer graphene as an elementary two-dimensional material unlikely exhibits ferroelectric order due to its highly centrosymmetric hexagonal lattices.

First report of tomato spotted wilt orthotospovirus infecting (Vant.) Hand.-Mazz. in Yunnan, China.

The Asteraceae family plant Erigeron breviscapus (Vant.) Hand.-Mazz.

[ Granules inhibit autophagy and macrophage-mediated inflammatory response to improve acute exacerbations of chronic obstructive pulmonary disease in rats].

Objective: To investigate the inhibitory effect of Granules (TSG) on macrophage-mediated inflammatory response to alleviate acute exacerbation of chronic obstructive pulmonary disease (AECOPD) in rats and explore the underlying mechanism.

Methods: Twenty-four rats were divided into control group, AECOPD model group, TSG treatment group, and moxifloxacin+salbutamol (MXF+STL) treatment group. In the rat models of COPD, AECOPD was induced by nasal instillation of on day 3 of week 9 after modeling, and saline, TSG or MXF+STL were administered via gavage on days 1 and 2 and days 4 to 7 of week 9.

Construction and validation of a mouse model for studying severe human adenovirus infections.

Human adenoviruses (HAdVs) are highly contagious pathogens with various genotypes implicated in acute respiratory disease (ARD) and linked to fatality, especially in immunosuppressed patients, young children, and military recruits. Currently, no vaccines or specific drugs are approved for clinical use. The hosts of adenoviruses are strictly species-specific, which strongly limits the development of vaccines and drugs against HAdVs.