Notes on the genus Homogryllacris Liu, 2007 (Orthoptera: Gryllacrididae) with description of one new species from China.

This paper deals with five species of the genus Homogryllacris Liu, 2007 from China, including one new species, i.e. Homogryllacris nigromacula sp. nov. Morphological illustrations of most species and habitus of the new species are provided. Moreover, one geographical population of Homogryllacris yunnana Shi, Guo & Bian, 2012 and intraspecific variation of Homogryllacris platycis Liu & Bian, 2021 are discussed and illustrated. All specimens examined are deposited in the Museum of Hebei University.

Two new species of the genus Homogryllacris (Orthoptera: Gryllacrididae) with the male of Homogryllacris irregularis Lu, Zhang & Bian, 2022 from Yunnan, China.

This paper reports two new species of the genus Homogryllacris Liu, 2007 from Yunnan, China. In addition, the male of Homogryllacris irregularis Lu, Zhang & Bian, 2022 is described for the first time.

A supplement of the genus Phlugiolopsis Zeuner, 1940 (Tettigoniidae: Meconematinae) from Yunnan, China.

This paper reports three new species of the genus Phlugiolopsis from Yunnan, China, i.e. Phlugiolopsis expansis sp. nov., Phlugiolopsis bidentis sp. nov. and Phlugiolopsis curvis sp. nov. Examined specimens are deposited in the Museum of Hebei University.

Three new species of the genus Nigrimacula Shi, Bian & Zhou, 2016 (Orthoptera: Tettigoniidae: Meconematinae) from Yunnan, China.

This paper reports three new species of the genus Nigrimacula Shi, Bian & Zhou, 2016 from Yunnan, China, i.e. Nigrimacula biprotubera sp. nov., Nigrimacula trigona sp. nov. and Nigrimacula wuliangshanensis sp. nov. In addition, we supplement the male description of Nigrimacula inlobata Cui, Liu & Shi, 2021.

hsa­miR­216a­3p regulates cell proliferation in oral cancer via the Wnt3a/ß­catenin pathway.

Oral cancer is one of the leading causes of death worldwide, with a reported 5­year survival rate of ~50% after treatment. The treatment measures for oral cancer are very expensive and affordability is low. Thus, it is necessary to develop more effective therapies to treat oral cancer. A number of studies have found that miRNAs are invasive biomarkers and have therapeutic potential in a variety of cancers. The present study included 30 oral patients and 30 healthy controls. Clinicopathological characteristic and miR­216a­3p/ß­catenin expression level of 30 oral cancer patients were analyzed. In addition, two oral cancer cell lines (HSC­6 and CAL­27) were used for mechanism­of­action study. The expression level of miR­216a­3p was higher in oral cancer patients compared with healthy controls and positively associated with tumor stage. Inhibition of miR­216a­3p potently suppressed cell viability and induced apoptosis of oral cancer cells. It was found that effects of miR­216a­3p on oral cancer were through Wnt3a signaling. It was also found that the expression level of ß­catenin was higher in oral cancer patients compared with healthy controls and positively associated with tumor stage; the effects of miR­216a­3p on oral cancer were through ß­catenin. In conclusion, miR­216a­3p and the Wnt­ß­catenin signaling pathway may be interesting candidates to develop effective therapies for oral cancers.

Bioinspired Spinosum Capacitive Pressure Sensor Based on CNT/PDMS Nanocomposites for Broad Range and High Sensitivity.

Flexible pressure sensors have garnered much attention recently owing to their prospective applications in fields such as structural health monitoring. Capacitive pressure sensors have been extensively researched due to their exceptional features, such as a simple structure, strong repeatability, minimal loss and temperature independence. Inspired by the skin epidermis, we report a high-sensitivity flexible capacitive pressure sensor with a broad detection range comprising a bioinspired spinosum dielectric layer. Using an abrasive paper template, the bioinspired spinosum was fabricated using carbon nanotube/polydimethylsiloxane (CNT/PDMS) composites. It was observed that nanocomposites comprising 1 wt% CNTs had excellent sensing properties. These capacitive pressure sensors allowed them to function at a wider pressure range (~500 kPa) while maintaining sensitivity (0.25 kPa-1) in the range of 0-50 kPa, a quick response time of approximately 20 ms and a high stability even after 10,000 loading-unloading cycles. Finally, a capacitive pressure sensor array was created to detect the deformation of tires, which provides a fresh approach to achieving intelligent tires.

Two new species of the genus Nigrimacula (Orthoptera: Tettigoniidae: Meconematinae) from Yunnan, China.

The paper reports two new species of the genus Nigrimacula, i.e. Nigrimacula compressata sp. nov. and Nigrimacula platycerca sp. nov. Morphological illustrations and habitus photographs are provided. The type specimens are deposited in the Museum of Hebei University.

One new species of the genus Microconema Liu, 2005 (Orthoptera: Tettigoniidae: Meconematinae) from Yunnan, China.

This paper reports one new species of the genus Microconema Liu, 2015, i.e. Microconema arctilamina sp. nov., and provides the characteristics and habitus photographs. Illustrations of important morphology of Microconema clavata (Uvarov, 1933) are also provided for the first time. The materials examined (including type specimens) are deposited in the Museum of Hebei University.

Recent Progress in Flexible Pressure Sensor Arrays.

Flexible pressure sensors that can maintain their pressure sensing ability with arbitrary deformation play an essential role in a wide range of applications, such as aerospace, prosthetics, robotics, healthcare, human-machine interfaces, and electronic skin. Flexible pressure sensors with diverse conversion principles and structural designs have been extensively studied. At present, with the development of 5G and the Internet of Things, there is a huge demand for flexible pressure sensor arrays with high resolution and sensitivity. Herein, we present a brief description of the present flexible pressure sensor arrays with different transduction mechanisms from design to fabrication. Next, we discuss the latest progress of flexible pressure sensor arrays for applications in human-machine interfaces, healthcare, and aerospace. These arrays can monitor the spatial pressure and map the trajectory with high resolution and rapid response beyond human perception. Finally, the outlook of the future and the existing problems of pressure sensor arrays are presented.