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The gut microbiota is a powerful 'organ' composed of prokaryotic organisms (bacteria), eukaryotic microorganisms (including fungi and protozoa) and viruses, which plays a crucial role in the nutrition metabolism, maintenance of the integrity of intestinal mucosal barrier, and immune regulation of the body. Researches have shown that intestinal microecology is related to the pathogenesis of many diseases, such as neuropsychiatric diseases, autoimmune diseases, cancer and chronic metabolic diseases. Recent studies have found that gut microbiota can regulate hemodynamics through the oxidation of trimethylamine and short chain fatty acids. At the same time, gut microbiota disorder and translocation can activate the body's inflammatory response, affecting the stability of the body's hemodynamics.In this article, we summarize the relationship between gut microbiota and hemodymamics, in order to provide reference for further research.

Solution‐based methods for fabricating all‐inorganic perovskite film arrays often suffer from limited control over nucleation and crystallization, resulting in poor homogeneity and coverage. To improve film quality, advanced vapor deposition techniques are employed for continuous film. Here, the vapor deposition strategy to the all‐inorganic perovskite films array, enabling area‐selective deposition of perovskite through substrate modulation is expanded. It can yield a high‐quality perovskite film array with different pixel shapes, various perovskite compositions, and a high resolution of 423 dpi. The resulting photodetector arrays exhibit remarkable optoelectronic performance with an on/off ratio of 13 887 and responsivity of 47.5 A W−1. The device also displays long‐term stability in a damp condition for up to 12 h. Moreover, a pulse monitoring sensor based on the perovskite films array demonstrates stable monitoring for pulse signals after being worn for 12 h and with a low illumination of 0.055 mW cm−2, highlighting the potential application in wearable optoelectronic devices. [ABSTRACT FROM AUTHOR]

KNbO3, a type of perovskite material, was widely developed for various devices due to its excellent light absorption properties, non-toxicity, chemical stability, ferroelectricity, and so on. As ferroelectric material, the KNbO3 can generate a depolarized electric field for separation of photon-generated carriers. In this work, KNbO3 nanocubes were synthesized using a hydrothermal method and integrated as a photoanode material into a PEC-type UV detector. The UV detector possesses a fast response time with the corresponding rising and recovery times of 72 and 28 ms under 35 mW cm−2 irradiance at 365 nm. In addition, the UV detector presents significant visible light blindness and good linearity and is self-powered. This work indicated that the KNbO3 could be used as a new option for the active layer of the UV detector. [ABSTRACT FROM AUTHOR]

The MOFs materials exist potential application prospects in the energy storage field for their high specific surface area and porosity. However, the MOFs materials also suffer from poor conductivity during the charging and discharging processes. Compared with MOFs, MOFs-derived metal oxides not only inherit the porosity of the MOFs, but also present high conductivity owing to the derived carbon. Herein, an effective approach for encapsulating CoFe2O4 into the derived carbon, which not only increases their conductivity but also restrains the volume expansion, and had excellent reaction kinetics. In this work, CoFe2O4 nanoparticles have been synthesized by one-step annealed process. The electrode is used as the anode for LIBs and found to have long-term stability of 491 mAh g−1 at a current density of 1.0 A g−1 even after 500 cycles. The CoFe2O4 electrode exhibits appreciable electrochemical performance, including 783 and 482 mAh g−1 at the current densities of 0.1 and 2.0 A g−1, respectively. Such excellent electrochemical properties are ascribed to the porous structure of MOFs, which effectively promotes ion/charge transmission. This will guide material design and optimization of battery communities and electrochemical energy storage applications. [ABSTRACT FROM AUTHOR]

In this paper, we investigate the physical layer security for an asymmetric dual-hop radio frequency-free space optical (RF-FSO) communication system, in which a source transmits information to a multi-aperture destination (D) through a best relay under the wiretapping of a multi-aperture eavesdropper (E). The best relay is selected by a partial relay selection scheme in terms of maximum instantaneous channel gain for the RF link. Moreover, equal gain combining scheme is also used to process the multiple copies of receiving signal at D and E. Assuming all the RF channels are subject to independent and identical distributed (i.i.d.) Nakagami-m fading and all the FSO channels are modeled by i.i.d. Gamma-Gamma process, the secrecy performance in terms of secrecy outage probability and the probability of strictly positive secrecy capacity are studied, and the accuracy of the analytical results is verified by Monte-Carlo simulations. [ABSTRACT FROM AUTHOR]