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In this article, by using the method of upper and lower solutions combined with the monotone iterative technique, we investigate a Caputo‐Hadamard–type fractional turbulent flow model. We prove new comparison results and obtain explicit monotone iterative sequences converging to the extremal solutions and unique solution of the model problem. Examples illustrating the main results are also presented. [ABSTRACT FROM AUTHOR]

Under the background of globalization, cultural and creative tourism has gradually become a new trend of tourism, providing tourists with rich and diverse travel experience. This paper discusses the development status, characteristics and integration strategies of cultural and creative tourism under the new normal. Through the analysis of the existing literature, it is found that cultural creative tourism not only brings economic benefits to the region, but also promotes the protection and inheritance of local culture. At the same time, technological advances and data convergence provide new opportunities for the promotion and management of cultural and creative tourism. But it also brings challenges, such as how to ensure sustainable development and how to meet the growing demand of tourists. Finally, based on the method of multiple linear regression analysis, the paper analyzes the factors that affect the development of cultural creative tourism. [ABSTRACT FROM AUTHOR]

Chilli anthracnose is a major infectious disease of the genus Capsicum. Chemical control is the primary means of controlling this disease; however, the excessive use of chemical pesticides can adversely affect ecological security and human health. Here, our aim was to explore the synergistic effects of chemical and biological pesticides in the control of chilli anthracnose. The bacterial strain LY7, which is antagonistic to the anthracnose-causing fungus Colletotrichum scovillei, inhibited the growth of C. scovillei by 83.52%. Through morphological and genetic analyses, this strain was identified as Bacillus velezensis. Then, the compatibility of LY7 with three common chemical fungicides was determined. The in vitro protective and therapeutic efficacies of the 1 × 109 CFU/mL (colony-forming unit/mL) bacterial solution were 66.38% and 35.18%, respectively, but both were significantly lower than those of prochloraz, the most compatible fungicide. We then conducted field efficacy trials to elucidate the best combination of prochloraz and LY7; the highest control efficiency was achieved with a suspension of 1.0 × 108 CFU/mL of LY7 mixed with 0.75 g/L prochloraz (3:7 ratio). Electron microscopy revealed the inhibitory effects of LY7 and prochloraz on C. scovillei mycelial growth. These results suggest that an LY7-based biofungicide can partially replace prochloraz, serving as an integrated management strategy to control chilli anthracnose. [ABSTRACT FROM AUTHOR]

This paper presents the implementation of the parallel hybrid implicit-explicit finite-difference timedomain (HIE-FDTD) method using the Message Passing Interface (MPI) library. The method proves to be very effective in simulating large-scale three-dimensional electromagnetic problems with fine structures in one direction. For the decomposition of the computational volume in the HIE-FDTD method, an MPI Cartesian 2D topology is implemented, allowing arbitrary division of the volume in two directions. Derived data types provided in the MPI library are employed to optimize inter-process communication. High accuracy and efficiency are subsequently demonstrated through a numerical example of a frequency-selected surface (FSS). It shows that the proposed method is very suitable for parallel computing, and the parallel efficiency maintains above 80% for different numbers of processes. [ABSTRACT FROM AUTHOR]

Almond expeller is an undeveloped reservoir of bioactive peptides. In the current study, a zinc ion ligand Arg-Pro-Pro-Ser-Glu-Asp-Glu-Asp-Gln-Glu (RPPSEDEDQE) offering a noncompetitive inhibitory effect on ACE (IC50: 205.50 μmol·L−1) was identified from almond albumin hydrolysates via papain and thermolysin hydrolysis, subsequent chromatographic separation, and UPLC-Q-TOF-MS/MS analysis. Molecular docking simulated the binding modes of RPPSEDEDQE to ACE and showed the formation of hydrogen bonds between RPPSEDEDQE and seven active residues of ACE. Moreover, RPPSEDEDQE could bind to fifteen active sites of ACE by hydrophobic interactions, and link with the His387 and zinc ions of the zinc tetrahedral coordination. Ultraviolet wavelength scanning and Fourier-transformed infrared spectroscopy analysis revealed that RPPSEDEDQE can provide multiple binding sites for zinc ions. However, RPPSEDEDQE cannot bind with any central pocket of ACE, which was evidenced by an inhibition kinetics experiment. Additionally, the zinc-chelating capacity and inhibiting ability against ACE of RPPSEDEDQE were both not significantly reduced by the hydrolysis of gastrointestinal enzymes. A moderate to high dose of RPPSEDEDQE (100–150 mg·kg bw−1) significantly reduced the systolic and diastolic blood pressure of spontaneous hypertensive rats, but chelation with zinc ions decreased its antihypertensive efficiency. These results indicate that bitter almond albumin peptides may be used for lowering blood pressure. [ABSTRACT FROM AUTHOR]

The C1 ERP component reflects the earliest visual processing in V1. However, it remains debated whether attentional load can influence it or not. We conducted two EEG experiments to investigate the effect of attentional load on the C1. Task difficulty was manipulated at fixation using an oddball detection task that was either easy (low load) or difficult (high load), while the distractor was presented in the upper visual field (UVF) to score the C1. In Experiment 1, we used a block design and the stimulus onset asynchrony (SOA) between the central stimulus and the peripheral distractor was either short or long. In Experiment 2, task difficulty was manipulated on a trial‐by‐trial basis using a visual cue, and the peripheral distractor was presented either before or after the central stimulus. The results showed that the C1 was larger in the high compared to the low load condition irrespective of SOA in Experiment 1. In Experiment 2, no significant load modulation of the C1 was observed. However, we found that the contingent negative variation (CNV) was larger in the low compared to the high load condition. Moreover, the C1 was larger when the peripheral distractor was presented after than before the central stimulus. Combined together, these results suggest that different top‐down control processes can influence the initial feedforward stage of visual processing in V1 captured by the C1 ERP component. Our new ERP findings inform about top‐down modulatory effects created by attentional load on early visual processing in the primary visual cortex (V1). In two experiments, we found that V1 activity was not reduced when attentional load increased. However, this lack of modulation could be explained by the likely contribution of other cognitive processes, including working memory, which could mask or interfere with the early gating of sensory processing in V1 created by attentional load. [ABSTRACT FROM AUTHOR]

Developing high‐capacity electrodes requires the evaluation of electrochemical behaviors with an increasing current density. Currently, the current density for evaluation of high‐capacity electrodes has reached a new stage where the polarization at the lithium counter electrode has become a technical barrier for the accurate evaluation of battery electrodes, resulting in severe performance and mechanism mischaracterizations. Here, the accurate electrochemical behavior for high‐capacity electrodes via a single‐channel three‐electrode vehicle is decoupled, by which the impact of lithium counter electrode is minimized. The testing high‐capacity graphite electrode is capable of delivering an excellent rate capability with 81.7% capacity retention at 0.3 C, as well as stable cycling performance retaining 97.5% practical reversible capacity after 225 cycles, much higher than the graphite electrode tested with traditional half‐cell testing vehicle but in close agreement with the results obtained from a well‐matched full cell, reflecting accurate electrochemical performance evaluations of high‐capacity electrodes. Moreover, detailed electrochemical mechanisms of impedance and diffusion properties for working electrodes are also successfully decoupled individually. This work uncovers the mismatch between traditional evaluation configuration and increasing testing current density and provides a guideline for accurate electrochemical evaluation for ever‐increasing high‐capacity electrodes, which is of great significance for high‐energy lithium or other alkali‐metal ion batteries. [ABSTRACT FROM AUTHOR]

Heating performance of biomass is of significant importance for the followed chemical reactions i.e. pyrolysis, gasification, combustion, etc. Corn straw (CS) is an important renewable resource. Microwave (MW) heating performances of corn straw particles affected by corn straw mass (10, 16, 22, 28 and 34 g), corn straw particle size (0.075, 0.125, 0.200, 0.355 and 0.600 mm) and microwave power (400, 450, 500, 550 and 600 W) were explored in detail in this study. It can be obtained that when the microwave powers were 400, 450, 500, 550 and 600 W, the average heating rates were 23.06, 33.19, 61.35, 88.70 and 101.46°C/min, respectively. When the corn straw particle sizes were 0.075, 0.125, 0.200, 0.355 and 0.600 mm, the average heating rates were 101.46, 61.07, 52.70, 37.34 and 56.04°C/min, respectively. When the corn straw masses were 10, 16, 22, 28 and 34 g, the average heating rates were 36.31, 46.24, 101.46, 92.95 and 46.01°C/min, respectively. Formulae were further proposed to estimate the transient temperatures of biomass particles, and the R2 values ranged from 0.984 to 0.999. [ABSTRACT FROM AUTHOR]

The C1 event‐related potential (ERP) captures the earliest stage of feedforward processing in the primary visual cortex (V1). An ongoing debate is whether top‐down selective attention can modulate the C1. One side of the debate pointed out that null findings appear to outnumber positive findings; thus, selective attention does not seem to influence the C1. However, this suggestion is not based on a valid approach to summarizing evidence across studies. Therefore, we conducted a systematic review and meta‐analysis investigating the effects of selective attention on the C1, involving 47 experiments and 794 subjects in total. Despite heterogeneity across studies, results suggested that attention has a moderate effect on the C1 (Cohen's dz = 0.33, p <.0001); that is, C1 amplitude is larger for visual stimuli that are attended than unattended. These results suggest that C1 is affected by top‐down selective attention. This is the first systematic review and meta‐analysis for the effects of selective attention on the C1 ERP component. We showed statistical evidence in favor of an effect of selective attention on the C1 and no difference of modulation by different types of attention. [ABSTRACT FROM AUTHOR]

Fractal theory demonstrates significant merit in the feature expression of forms of matter in nature. This study uses fractal theory to study the backfill grouting of a shield tunnel. The seepage path was considered as a seepage mesh inserted into the rock-soil mass. For the fractal features of the seepage mesh, the formulas for the diffusion distance and the pressure contribution of grout were derived. The results showed that the diffusion equations of different grout patterns (Newtonian fluid and Bingham fluid) were of a uniform form after calculation, and the equations for the pressure distribution of grout with a change in radius were identical. The diffusion distance of grout increased with increasing grouting time, and there was no indication that the development of diffusion distance tended to be gradual; the downward tendency of the grout diffusion velocity was not moderated. The segment pressure increased with an increase in the diffusion distance. With a constant diffusion distance, a greater grouting pressure produced a greater segment pressure. The favorable performance of grout was attributed to an appropriate mixture ratio. An improper mixture ratio resulted in a smaller reinforcement area in the stratum, which impaired the stability of the shield tunnel. [ABSTRACT FROM AUTHOR]

A stable solid electrolyte interphase (SEI) is highly desired to prevent parasitic reactions during normal operation of lithium‐ion batteries (LIBs). Lithium carbonate (Li2CO3) is one of the most significant components for smooth SEI passivation layers; while the formation mechanism and special distribution of the Li2CO3 layer has not yet been illustrated. Here, an over‐potential tailored Li2CO3 growth mechanism based on the typical hard carbon anode is demonstrated. With an increase in the over‐potential, the size of Li2CO3 decreases gradually as the amount increases. When the over‐potential is large (potential at 0.01 V), a Li2CO3‐rich thin and dense inorganic layer with the average thickness of 4.4 nm in the SEI is constructed. The special SEI the completely wraps the boundaries of the anode enables a larger Li‐ion de‐solvation energy barrier and a lower Li‐ion diffusion energy barrier, which supports low self‐discharge behavior and a fast kinetic rate at the anode. More generally, this Li2CO3 growth mechanism is also applicable to commercialized graphite anodes and similar results are also obtained. Therefore, this work provides a new insight into the Li2CO3 growth mechanism in SEIs, as well as a guideline for the design of stable artificial SEIs. [ABSTRACT FROM AUTHOR]

Shield tunnel is widely adopted in the metro construction, and backfill grouting is the significant part. With power-law fluid grouts as the study object, a cylindrical infiltration diffusion model and spherical infiltration diffusion model are developed by applying the generalized Darcy law and theories of seepage mechanics based on the displacement effect of grout on groundwater. Through examples, the impact of factors including grouting pressure and formation permeability coefficient in the spherical displacement infiltration diffusion model on diffusion radius, flow rate, total pressure of grout in segments, and uniform equivalent pressure in grout diffusion area (grout pressure per unit area in a segment) is analyzed. The result shows that, the diffusion speed, injection flow rate and the pressure received in segments increase with an increase of the grouting pressure. Meanwhile, as the injection time increases, the flow rate of grout under conditions of different grouting pressure all decreases, and a sharp decrease exists. The diffusion speed and grouting pressure are positively correlated to the permeability coefficient, and with the increasement of the injection time, the diffusion displacement of grout in different permeability coefficient varies increasingly, the increase amplitude of the pressure acting on the segment by grout increases gradually. [ABSTRACT FROM AUTHOR]

Increasing amounts of tailings and waste rubber tires have caused threats to the environment. In order to reuse these solid wastes, this study proposed a cemented tailings material containing crumb rubber recovered from waste tires. Unconfined compression tests and thermal conductivity measurements were conducted to evaluate the feasibility and performance of the proposed cemented tailings. Results revealed that the stress-strain behavior of the cemented tailings changed by the inclusion of crumb rubber. The unconfined compressive strength of cemented tailings decreased with increasing crumb rubber content. The inclusion of crumb rubber increased the failure strain and nonlinearity index of the cemented tailings. It was found that the addition of 4% crumb rubber provided the greatest improvement in ductility. The increase of the rubber content further increased the thermal insulation capacity of the cemented tailings. The low stiffness and the dimpled surface of the crumb rubber were responsible for the reduced compressive strength and thermal conductivity of the cemented tailings. In conclusion, the crumb rubber had both positive and negative effects on the cemented tailings. In practical application, the rubber admixture amount should be flexibly adjusted for different use case to make the cemented tailings material show the most suitable performance characteristic. [ABSTRACT FROM AUTHOR]

Composite bipolar plates composed of conductivity fillers and resins are widely employed in stationary proton exchange membrane fuel cell (PEMFC) due to their high corrosion resistance in acidic environments. Phenol-formaldehyde resin is a commonly used adhesive in composite bipolar plates; while numerous benzene rings in phenol-formaldehyde resin result in the poor flexibility of composite bipolar plates. Embedding the flexible segment (–CHOH–CH 2 -O-) in the resin network structure of phenol-formaldehyde resin by copolymerization with epoxy resin is an effective method for improving the defects of phenol-formaldehyde resin. In this contribution, to tailor flexible-segment-rich (–CHOH–CH 2 -O-) resin network structure, the co-polymerization mechanism of phenol-formaldehyde resin and epoxy resin is investigated in detailed by in-situ Fourier Transform Infrared (FTIR), based on which an Alter-T strategy is proposed for flexible-segment-rich (–CHOH–CH 2 -O-) resin network structure during composite bipolar plates fabrication process. The obtained composite bipolar plates consisted of graphite and flexible-segment-rich resin network structure delivers improved flexural strength (86.97 MPa), electrical conductivity (203.22 S cm−1) and areal resistance (3.41 mΩ cm2) in comparison to previously reported composite bipolar plates with same components, which are also over the technical standard of the DOE. It is further demonstrated that enriching the flexible segment for improving the poor flexibility of resin network structure is of great importance to enhance the performance of the composite bipolar plates. A two-step alteration of temperature (Alter-T) strategy was proposed to tailor flexible-segment-rich (–CHOH–CH 2 -O-) in the resin network structure during polymerization, for improving the performance of CBP including mechanical properties and electrical conductivity. This approach provides a new insight of improving CBP performance by regulating resin network structure. [Display omitted] • Epoxy is embedded in the resin network structure of Phenol-Formaldehyde. • The resin network structure flexibility is improved by embedding flexible-segment. • The composite bipolar plates exhibit improved comprehensive performance. [ABSTRACT FROM AUTHOR]

The single von Willebrand factor C-domain proteins (SVWCs), also known as Vago, are primarily found in arthropods. Their expression was induced by nutritional status, bacterial and viral infections. Despite the prominence of SVWCs in antiviral immunity, the detailed molecular mechanisms remain poorly explained. SVWC has been proposed to elicit antiviral activities through its function as an interferon analog. In contrast, herein, we illustrate that an SVWC homolog from Macrobrachium nipponense (MnSVWC) confers host defense against white spot syndrome virus (WSSV) and covert mortality nodavirus (CMNV) as a pattern recognition receptor (PRR). qRT-PCR analyses demonstrated that the expression of MnSVWC was enhanced upon WSSV infection in all detected tissues, including gills, nerve cords, and hemocytes. Coating WSSV with recombinant MnSVWC (rMnSVWC) promoted the phagocytic activity of hemocytes and subsequent clearance of invasive WSSV from the prawn. On the other hand, the knockdown of MnSVWC with RNAi improved the proliferation ability of WSSV and CMNV in the prawn. Analysis of ELISA and Co-immunoprecipitation (Co-IP) showed that rMnSVWC could bind WSSV by interacting with the vesicle proteins VP26 and VP28. Co-IP analysis verified the interaction between MnSVWC and calmodulin, which implies a vesicle protein-SVWC-calmodulin-clathrin-dependent mechanism underlying the hemocyte-mediated phagocytosis against WSSV. Subsequently, MnSVWC was recognized to activate the expression of transcription factor STAT and an interferon-stimulating gene Viperin, illustrating its involvement in modulating humoral immunity via activation of the JAK/STAT pathway after WSSV infection. These findings indicate that MnSVWC could bind to WSSV as a PRR and participate in the promotion of hemocyte-mediated phagocytosis and the activation of the JAK/STAT pathway in prawns. [ABSTRACT FROM AUTHOR]

Butyrylcholinesterase (BChE) is recently regarded as a biomarker in progressed Alzheimer's disease (AD), the development of selective BChE inhibitors has attracted a great deal of interest and may be a viable therapeutic strategy for AD. Previously, an aromatic tertiary amine derivative (S17 – 1001) was screened and validated as a selective BChE inhibitor. Structured-based molecular modification guided the synthesis of 43 analogs. Biological test of cholinesterase inhibition, in vitro blood brain barrier permeation assay, neurotoxicity assay and neuroprotective effects assay indicated two optimal compounds 17c and 19c. Both compounds showed selective BChE inhibitory (h BChE < 20 nM, ee AChE > 10 μM), good BBB permeation and primary cell safety. Besides, 17c can dose-response protect cell from Aβ 1−42 induced damage. It also demonstrated that 17c and 19c were able to restore cognitive impairment in vivo test. These data suggest that 17c and 19c represent promising candidate for follow-up in the drug-discovery process against AD. [Display omitted] • Novel aromatic tertiary amine derivatives were determined as selective butyrylcholinesterase inhibitors. • Not trigger acute toxicity on mice and obvious neurotoxicity on cells. • Significantly reversed Aβ-induced memory deficit in mice. [ABSTRACT FROM AUTHOR]

Purpose: This systematic review and meta-analysis aimed to synthesize the evidence on the effect of couple-based interventions on quality of life (QOL) among prostate cancer patients and their spouses. Method: Six English databases and two Chinese databases were systematically searched to identify relevant RCTs that examined the effect of couple-based interventions on QOL. The data from the included studies were extracted by two independent reviewers using a standardized data extraction form. Methodological quality was assessed by using the Cochrane Risk of Bias Tool. Meta-analysis was conducted among the suitable studies that the available data were sufficient. Results: One thousand ninety-five studies were identified, and 11 studies met the inclusion criteria for qualitative synthesis and 7 studied for meta-analysis. Couple-based interventions involve different formats of physical and psychosocial interventions. Physical exercise-based interventions were popular among couples, and these interventions had the highest level of adherence among all interventions examined herein. However, the meta-analysis of total QOL and physical and mental health revealed a non-significant effect on both prostate cancer patients and their spouses. More RCTs examining couple-based interventions may be needed in developing countries, especially in Asian countries. Conclusion: Couple-based interventions had non-significant effect on improving the total QOL and physical and mental health of prostate cancer patients and their spouses. However, the current evidence is limited because the sample size of the studies is small. Thus, more studies with large sample sizes need to be included to detect the efficacy of couple-based interventions on prostate cancer patients and their spouses. [ABSTRACT FROM AUTHOR]

Thyroid cancer is the most common type of endocrine cancer, and most patients have a good prognosis. However, the thyroid cancer differentiation status strongly affects patient response to conventional treatment and prognosis. Therefore, exploring the molecular mechanisms that influence the differentiation of thyroid cancer is very important for understanding the progression of this disease and improving therapeutic options. In this study, SETMAR as a key gene that affects thyroid cancer differentiation is identified. SETMAR significantly regulates the proliferation, epithelial‐mesenchymal transformation (EMT), thyroid differentiation‐related gene expression, radioactive iodine uptake, and sensitivity to MAPK inhibitor‐based redifferentiation therapies of thyroid cancer cells. Mechanistically, SETMAR methylates dimethylated H3K36 in the SMARCA2 promoter region to promote SMARCA2 transcription. SMARCA2 can bind to enhancers of the thyroid differentiation transcription factors (TTFs) PAX8, and FOXE1 to promote their expression by enhancing chromatin accessibility. Moreover, METTL3‐mediated m6A methylation of SETAMR mRNA is observed and showed that this medication can affect SETMAR expression in an IGF2BP3‐dependent manner. Finally, the METTL3‐14‐WTAP activator effectively facilitates the redifferentiation of thyroid cancer cells via the SETMAR‐SMARCA2‐TTF axis utilized. The research provides novel insights into the molecular mechanisms underlying thyroid cancer dedifferentiation and provides a new approach for therapeutically promoting redifferentiation. [ABSTRACT FROM AUTHOR]

Comprehensive Summary: The cholinesterases are essential targets implicated in the pathogenesis of Alzheimer's disease (AD). We have identified tryptophan‐tetrahydroisoquinoline derivatives as selective micro‐nanomolar butyrylcholinesterase (BChE) inhibitors. Molecular docking was applied for the rational design and binding mode analysis. They were defined according to their target inhibitory activity, low cytotoxicity, predicted permeability through the blood‐brain barrier (BBB), and in vivo cognitive improvement. Additionally, the preferred compound showed ability to decrease self‐induced Aβ1‐42 aggregation and Aβ1‐42 induced SH‐SY5Y cell injury. Altogether, these factors indicated their potential as unique lead compounds for AD treatment. [ABSTRACT FROM AUTHOR]

[Display omitted] • BM pretreatment changed physicochemical properties of digestive slurry and promoted release of VFAs, COD, and free water. • Excessive BM times (>60 min) and TS (>8%) are not recommended. • BM pretreatment shortened lag phase time (37.41–56.12%) and increased methane production (45.63–104.11%). • BM pretreatment improved rheological properties of digestive slurry and reduced stirring consumption during AD. • Energy analysis and energy conversion evaluation illustrates that BM pretreatment is a viable strategy. In this study, the effects of ball-milling (BM) pretreatment on the anaerobic digestion (AD) performance and energy conversion efficiency of corn straw (CS) were explored. The AD testing was conducted by varying BM times (0–120 min) and TS (4–10 %). The results showed that BM pretreatment increased microbial and enzyme accessibility to the CS and facilitated the hydrolytic acidification process of AD. The peak concentration of volatile fatty acids (VFAs) (5325.69 mg/L) and chemical oxygen demand (COD) (14524 mg/L) were increased, resulting in more substrates available for methanogenic bacteria. The lag phase time was shortened (37.41–56.12 %) and the cumulative methane production was increased (45.63–104.11 %). Accelerated rate of total ammonia nitrogen (TAN) release resulted in increased buffering capacity of the digestion system. Reduced the initial density of the digestive slurry (6.91–9.58 %) and altered the water distribution (maximum increase in free water content to 70.4 %), which facilitated the agitation of the AD process. Excessive BM times (>60 min) and TS (>8%) are not recommended. The BM60-6 presented the highest volatile solids (VS) removal (78.79 %), cellulose degradation (92.07 %) and biochemical methane potential (BMP) (309.69 mL/g VS). The BM pretreatment also improved the rheological characteristics of digestive slurry and reduced the stirring power consumption of the AD process. The BM60-6 showed the largest net energy benefit (28.2101 KJ/g VS) and net residual value (0.5000), and the high energy input of the pretreatment was balanced. This discovery breaks the conventional wisdom that mechanical pretreatment is meaningless because of higher power consumption. [ABSTRACT FROM AUTHOR]

Selective attention is essential when we face sensory inputs with distractions. In the past decades, Lavie's load theory of selective attention delineates a complete picture of distractor suppression under different attentional control load. The present study was originally designed to explore how reward modulates the load effect of attentional selection. Unexpectedly, it revealed new findings under extended attentional load that was not involved in previous work. Participants were asked to complete a rewarded attentive visual tracking task while presented with irrelevant auditory oddball stimuli, with their behavioral performance, event‐related potentials and pupillary responses recorded. We found that although the behavioral performance and pupil sizes varied unidirectionally with the attentional load, the processing of distractors as reflected by the mismatch negativity (MMN) increased first and then decreased. In contrast to the prediction of Lavie's theory that attentional control fails to effectively suppress distractor processing under high attentional control load, our finding suggests that extremely high attentional control load may instead require suppression of distractor processing at a stage as early as possible. Besides, P3a, a positive‐polarity response sometimes following the MMN, was not affected by the attentional load, but both N1 (a negative‐polarity component peaking ~100 ms from sound onset) and P3a were weakened at higher reward, indicating that reward leads to attenuated early processing of distractor and thus suppresses the attentional orienting towards distractors. These findings altogether complement Lavie's load theory of selective attention, presenting a more complex picture of how attentional load and reward affects selective attention. In a rewarded attentive tracking task with auditory distractors, the processing of distractors was found to increase first and then decrease with attentional load, and also weakened with higher reward. This contradicts the prediction of previous theory that attentional control fails to suppress distractor processing under high attentional control load. Instead, it suggests that extremely high attentional control load may require suppression of distractor processing at an early stage, presenting a more complex picture of how attentional load and reward affect selective attention. [ABSTRACT FROM AUTHOR]

Sugarcane (Saccharum spp.) is an important sugar and biofuel crop in the world. It is frequently subjected to drought stress, thus causing considerable economic losses. Transgenic technology is an effective breeding approach to improve sugarcane tolerance to drought using drought-inducible promoter(s) to activate drought-resistance gene(s). In this study, six different promoters were cloned from sugarcane bacilliform virus (SCBV) genotypes exhibiting high genetic diversity. In β-glucuronidase (GUS) assays, expression of one of these promoters (PSCBV-YZ2060) is similar to the one driven by the CaMV 35S promoter and >90% higher compared to the other cloned promoters and Ubi1. Three SCBV promoters (PSCBV-YZ2060, PSCBV-TX, and PSCBV-CHN2) function as drought-induced promoters in transgenic Arabidopsis plants. In Arabidopsis, GUS activity driven by promoter PSCBV-YZ2060 is also upregulated by abscisic acid (ABA) and is 2.2–5.5-fold higher when compared to the same activity of two plant native promoters (PScRD29A from sugarcane and PAtRD29A from Arabidopsis). Mutation analysis revealed that a putative promoter region 1 (PPR1) and two ABA response elements (ABREs) are required in promoter PSCBV-YZ2060 to confer drought stress response and ABA induction. Yeast one-hybrid and electrophoretic mobility shift assays uncovered that transcription factors ScbZIP72 from sugarcane and AREB1 from Arabidopsis bind with two ABREs of promoter PSCBV-YZ2060. After ABA treatment or drought stress, the expression levels of endogenous ScbZIP72 and heterologous GUS are significantly increased in PSCBV-YZ2060:GUS transgenic sugarcane plants. Consequently, promoter PSCBV-YZ2060 is a possible alternative promoter for genetic engineering of drought-resistant transgenic crops such as sugarcane. The promoter PSCBV-YZ2060 cloned from the sugarcane bacilliform virus is shown to be induced by drought in sugarcane and Arabidopsis plants and is a potential alternative promoter for genetic engineering of drought-resistant transgenic crops. [ABSTRACT FROM AUTHOR]

A new emerging disease of quinoa, quinoa basal stem rot (QBSR), has been recorded in Shanxi Province, China. Observed during the inflorescence emergence stage, the pathogen causes wilting, foliar chlorosis, leaf abscission and eventual death of quinoa. In this study, isolates were identified as Fusarium solani using morphology, molecular and phylogenetic analysis (using sequences of calmodulin, rDNA internal transcribed spacer region, RNA polymerase II B‐subunits RPB1 RPB1 and RPB2 RPB2, and translation elongation factor 1‐α), and pathogenicity analysis. Twenty‐seven isolates were classified into two different groups according to their morphological characteristics, and the mycelial growth rate of Group 2 was higher than that of Group 1 on six different media. The optimum growth temperature for both groups was 30°C and the highest mycelial growth rates were 9.2 and 10.0 mm/day, for Groups 1 and 2, respectively. The sporodochial conidia (SC) and aerial conidia (AC) germinated normally at 15–25°C and 10–40°C, respectively, and the width of SC and AC germ tubes were 1.4 and 2.2 μm. The lethal temperature for AC was 51°C for 20 min, and SC stopped germinating at 45°C. Pathogenicity tests of representative isolates showed that mycelia or conidia caused typical symptoms of QBSR on wounded basal stems of Chenopodium quinoa at 6 days postinoculation. The optimum temperature for the onset of QBSR was 30°C for both groups of isolates, and lesion lengths ranged from 5.4 to 5.9 cm. Knowledge of this pathogen will provide useful information for effective disease management to prevent its spread. [ABSTRACT FROM AUTHOR]

Composite bipolar plates (CBP) composed of conductive carbon and flexible but insulated resin are considered promising skeletons in proton exchange membrane fuel cell (PEMFC) with the characteristics of desirable mechanical and electrical conductivity properties, as well as chemical stability. However, the paradox of mechanical and electrical properties caused by insulating resins limits the overall performance of the CBP. Recently, massive studies have been reported to develop high-performance practical CBP; while there is few detailed summarizations yet. This review covers the recent advances in materials and technologies of high-performance CBP comprehensively. First, the core materials supporting the electrical conductivity and mechanical properties are summarized in detail. Furthermore, the interaction between resins and carbon-based materials is analyzed carefully. Subsequently, the fabrication process and novel structure of CBP are reviewed. Finally, the existing challenges are also discussed, and several future research directions are proposed. Overall, this review can provide guidelines for selecting appropriate strategies for improved CBP in PEMFC. • The materials and technologies of composite bipolar plate are reviewed. • The core materials for electrical and mechanical properties are summarized. • The fabrication process and novel structure of CBP are reviewed. • Suggestions for future development of composite bipolar plate are discussed. [ABSTRACT FROM AUTHOR]

Background: The university years are a developmentally crucial phase and a peak period for the onset of mental disorders. The beliefs about the changeability of negative emotion may play an important role in help-seeking. The brief digital growth mindset intervention is potentially scalable and acceptable to enhance adaptive coping and help-seeking for mental health needs in university students. We adapted the Single-session Intervention on Growth Mindset for adolescents (SIGMA) to be applied in university students (U-SIGMA). This protocol introduces a two-armed waitlist randomized controlled trial study to examine the effectiveness and acceptability of U-SIGMA in promoting help-seeking among university students in the Greater Bay Area. Methods: University students (N = 250, ages 18–25) from universities in the Greater Bay Area will be randomized to either the brief digital growth mindset intervention group or the waitlist control group. Participants will report on the mindsets of negative emotions, perceived control over anxiety, attitude toward help-seeking, physical activity, hopelessness, psychological well-being, depression, anxiety, and perceived stress at baseline and the 2-week and 8-week follow-ups through web-based surveys. A 30-min digital intervention will be implemented in the intervention group, with a pre- and post-intervention survey collecting intervention feedback, while the control group will receive the link for intervention after 8 weeks. Discussion: This protocol introduces the implementation plan of U-SIMGA in multi-cities of the Greater Bay Area. The findings are expected to help provide pioneer evidence for the effectiveness and acceptability of the brief digital intervention for university students in the Chinese context and beyond and contribute to the development of accessible and effective prevention and early intervention for university students' mental health. Trial registration: HKU Clinical Trials Registry: HKUCTR-3012; Registered 14 April 2023. http://www.hkuctr.com/Study/Show/7a3ffbc0e03f4d1eac0525450fc5187e. [ABSTRACT FROM AUTHOR]

Pilocytic astrocytoma (PA), the most common pediatric brain tumor, is driven by aberrant mitogen-activated protein kinase signaling most commonly caused by BRAF gene fusions or activating mutations. While 5-year overall survival rates exceed 95%, tumor recurrence or progression constitutes a major clinical challenge in incompletely resected tumors. Here, we used similarity network fusion (SNF) analysis in an integrative multi-omics approach employing RNA transcriptomic and mass spectrometry-based proteomic profiling to molecularly characterize PA tissue samples from 62 patients. Thereby, we uncovered that PAs segregated into two molecularly distinct groups, namely, Group 1 and Group 2, which were validated in three non-overlapping cohorts. Patients with Group 1 tumors were significantly younger and showed worse progression-free survival compared to patients with group 2 tumors. Ingenuity pathways analysis (IPA) and gene set enrichment analysis (GSEA) revealed that Group 1 tumors were enriched for immune response pathways, such as interferon signaling, while Group 2 tumors showed enrichment for action potential and neurotransmitter signaling pathways. Analysis of immune cell-related gene signatures showed an enrichment of infiltrating T Cells in Group 1 versus Group 2 tumors. Taken together, integrative multi-omics of PA identified biologically distinct and prognostically relevant tumor groups that may improve risk stratification of this single pathway driven tumor type. [ABSTRACT FROM AUTHOR]

Choanephora rot of Chenopodium plants (CRC) was observed at the flowering stages in seven plantations of Shanxi Province, China. CRC had caused leaf, stem, and panicle neck rot of C. quinoa, panicle neck and stem rot of C. formosanum, and stem rot of C. album. Typical symptoms included water-soaked, rapid soft rotting, and abundant sporulation on the whole panicle necks, stems, and leaves. Based on morphological characteristics, phylogenetic analyses, and pathogenicity tests, the pathogens were identified as Choanephoraceae cucurbitarum. Sporangiola and sporangiospore of C. cucurbitarum germinated at 30 °C and were able to germinate by two h post-inoculation (hpi). The germination rates of sporangiola and sporangiospore significantly increased at 3 to 4 hpi, and the germination rates ranged from 91.53 to 97.67%. The temperature had a significant effect on the pathogenicity of C. cucurbitarum the optimum pathogenic temperatures for stems of C. quinoa, C. formosanum and C. album were 30 °C after one day post-inoculation. Choanephoraceae cucurbitarum could infect white and red quinoa panicle necks between 20 and 30 °C, and the average lesion lengths were 0.21 to 3.62 cm. Among the five tested fungicides (boscalid, dimethomorph, isopyrazam, propiconazole, and tebuconazole), isopyrazam showed higher sensitivity to sporangiola germination of C. cucurbitarum, with an EC50 value of 0.6550 μg/mL. Isopyrazam and tebuconazole strongly inhibited the sporangiospore germination of C. cucurbitarum, which showed EC50 values of 0.4406 and 0.3857 μg/mL. To our knowledge, the present study found for the first time that C. cucurbitarum is a pathogen causing panicle neck of C. formosanum and stem rot of C. formosanum and C. album, while CRC first appeared in the quinoa panicle necks, and gradually expanded to stems and leaves. [ABSTRACT FROM AUTHOR]

Fraxinifolines A-F (1 – 6), six new B- seco limonoids, together with four known A,D-di- seco ones, were isolated from the twigs with leaves of Tetradium fraxinifolium. Their structures with absolute configurations were elucidated on the basis of analysis of MS, NMR, single-crystal X-ray diffraction and biogenetic pathway. An anti-inflammatory bioassay in vitro showed limonoids 1 – 3 had significant immunosuppressive effect against the production of pro-inflammatory cytokines (IL-1 β and/or TNF-α) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. [Display omitted] • Ten limonoids were isolated from the twigs with leaves of Tetradium fraxinifolium. • Fraxinifolines A-F are the first examples of B- seco limonoids from Rutaceae plant. • Fraxinifolines A-D are unusal 7,8- seco -7,8-epoxide type limonoids. • Fraxinifolines A, B and C had significant immunosuppressive effect. [ABSTRACT FROM AUTHOR]

Highly stretchable electrodes with electrically robust behavior are critical for wide applications of soft robots, electronic skins, and flexible sensors. However, it remains challenging to fabricate such electrodes with traditional fabrication methods, such as lithography, conductive composite material synthetization, stencil printing, and microchannel injection. Herein, a facile method is proposed to construct robust and stretchable electrodes by direct‐written liquid metal (LM) onto a predeposited interface bonding layer, which greatly improves the interfacial force between the LM and substrate. An electrospun graphene oxide/thermoplastic polyurethane composite nanofiber membrane is used as the bonding layer, which provides rich –OH on the interface and in situ forming of hydrogen bond (H‐bond) with the LM oxide layer. A prototype electrode shows stretchability of 580%. The resistance remains stable that varies from 2.8 to 19.3 Ω at 500% elongation, and varies slightly after 7500 stretching cycles under 50% elongation, from 2.6–4.0 to 4.4–6.4 Ω. The fabrication technique is demonstrated with applications in stretchable circuit board assemblies and stretchable electronic cables, indicating a potential effective method for fabricating high‐performance stretchable electrodes. [ABSTRACT FROM AUTHOR]

Background: Colorectal cancer (CRC), a commonly diagnosed cancer often develops slowly from benign polyps called adenoma to carcinoma. Altered gut microbiota is implicated in colorectal carcinogenesis. It is warranted to find non-invasive progressive microbiota biomarkers that can reflect the dynamic changes of the disease. This study aimed to identify and evaluate potential progressive fecal microbiota gene markers for diagnosing advanced adenoma (AA) and CRC. Results: Metagenome-wide association was performed on fecal samples from different cohorts of 871 subjects (247 CRC, 234 AA, and 390 controls). We characterized the gut microbiome, identified microbiota markers, and further constructed a colorectal neoplasms classifier in 99 CRC, 94 AA, and 62 controls, and validated the results in 185 CRC, 140 AA, and 291 controls from 3 independent cohorts. 21 species and 277 gene markers were identified whose abundance was significantly increased or decreased from normal to AA and CRC. The progressive gene markers were distributed in metabolic pathways including amino acid and sulfur metabolism. A diagnosis model consisting of four effect indexes was constructed based on the markers, the sensitivities of the Adenoma Effect Index 1 for AA, Adenoma Effect Index 2 for high-grade dysplasia (HGD) adenoma were 71.3% and 76.5%, the specificities were 90.5% and 90.3%, respectively. CRC Effect Index 1 for all stages of CRC and CRC Effect Index 2 for stage III–IV CRC to predict CRC yielded an area under the curve (AUC) of 0.839 (95% CI 0.804–0.873) and 0.857 (95% CI 0.793–0.921), respectively. Combining with fecal immunochemical test (FIT) significantly improved the sensitivity of CRC Effect Index 1 and CRC Effect Index 2 to 96.7% and 100%. Conclusions: This study reports the successful diagnosis model establishment and cross-region validation for colorectal advanced adenoma and carcinoma based on the progressive gut microbiota gene markers. The results suggested that the novel diagnosis model can significantly improve the diagnostic performance for advanced adenoma. [ABSTRACT FROM AUTHOR]

Background: Fear of cancer recurrence (FCR) has been demonstrated to be one of the most frequently reported unmet psychological needs among cancer survivors. The aim of this study was to explore and describe the potential triggers and coping strategies for FCR in Chinese cancer survivors. Methods: The study process was conducted using an interpretive phenomenological research method, and Chinese cancer survivors were interviewed face-to-face in a semi-structured interview, using purposive sampling combined with a maximum variance sampling strategy, and the interviews were transcribed, organized, and analyzed by applying Giorgi analysis with the help of NVivo11 software. Results: A total of 10 participants, 4 males and 6 females, were interviewed. Three themes emerged in terms of potential triggers for FCR: (1) intrusive thoughts; (2) disease symptoms; and (3) awaiting medical examination. Two themes regarding positive coping and avoidance coping emerged with regard to coping strategies adopted by cancer survivors when experiencing FCR. Under these 2 themes were 5 sub-themes: (1) seeking medical support; (2) self-health management; (3) spiritual coping; (4) unaccompanied toleration; and (5) attention shifting. Conclusion: FCR as the most common psychological problem for cancer survivors, and it should be given more attention. Early identification and precise intervention for potential triggers of FCR may prevent the emergence and development of FCR. The guidance toward and cultivation of positive coping strategies when cancer survivors experience FCR could be an important direction in future nursing education. [ABSTRACT FROM AUTHOR]

The underground bio-methanation of hydrogen and carbon dioxide, fulfilling multiple functions such as carbon mitigation, large-scale energy storage, and renewable natural gas synthesis, presents tremendous development prospects. However, the issue of site selection for underground bio-methanation remains unexplored. To tackle this challenge, this study proposes a pioneering evaluation criteria system tailored for underground bio-methanation site selection, encompassing four main-criteria (i.e., technology, safety, society, and economy) along with 20 sub-criteria. Moreover, an integrated multi-criteria decision-making (MCDM) approach for optimal site selection is introduced. This approach integrates both quantitative and qualitative criteria, employs game theory to combine subjective and objective weights for a more comprehensive weighting, and applies the TODIM (Interactive and Multicriteria Decision Making) method for alternative ranking. Additionally, a case study is conducted in the Sichuan Basin, Southwest China, to demonstrate the viability of the proposed decision framework. The findings highlight that site A1 emerges as the most promising location for underground bio-methanation among the four alternative natural gas storage sites, with the stability of this outcome substantiated through both sensitive and comparative analyses. This study represents the first comprehensive exploration of site selection for underground bio-methanation, and the introduced MCDM approach holds potential for addressing other energy-related site selection issues. • The first investigation of site selection for underground bio-methanation. • A pioneering evaluation criteria system and an integrated MCDM approach are introduced. • A case study is conducted in the Sichuan Basin, Southwest China. • Sensitive and comparative analyses affirm the decision framework's robustness. [ABSTRACT FROM AUTHOR]

Metastasis is an important cause of cancer-related death. Previous studies in our laboratory found that pregnane alkaloids from Pachysandra terminalis had antimetastatic activity against breast cancer cells. In the current study, we demonstrated that treatment with one of the alkaloid derivatives, (Z)-3β-ethylamino-pregn-17(20)-en (1), led to the downregulation of the HIF-1α/VEGF/VEGFR2 pathway, suppressed the phosphorylation of downstream molecules Akt, mTOR, FAK, and inhibited breast cancer metastasis and angiogenesis both in vitro and in vivo. Furthermore, the antimetastasis and antiangiogenesis effects of 1 treatment (40 mg/kg) were more effective than that of Sorafenib (50 mg/kg). Surface plasmon resonance (SPR) analysis was performed and the result suggested that HSP90α was a direct target of 1. Taken together, our results suggested that compound 1 might represent a candidate antitumor agent for metastatic breast cancer. [ABSTRACT FROM AUTHOR]

Deep resource extraction has been affected by the complex geological environment of "three highs and one disturbance" for a long time. The surrounding rocks experience strong unloading stress disturbance during the underground resource extraction. The creep characteristics of the perimeter rocks are of great theoretical and practical value. Firstly, the triaxial pre-peak loading and unloading tests on the prepared samples are conducted on the intact rock samples using the TAW-200 rock mechanics test system. Then the rock samples with different degrees of pre-peak unloading damage were prepared under the condition of pre-peak yield. Finally, the uniaxial creep tests were carried out to study the uniaxial creep mechanical properties. The results show that the wave velocities of the damaged rock samples are reduced to different degrees compared with those of the intact rock samples, the creep of the pre-peak unloading damaged rock has a time-dependent damage effect, and the study results are similar to those of the conventional uniaxial creep test of the white sandstone. The instantaneous strain at all stress levels of the damaged rock samples increased gradually with the stress level, which is consistent with the non-linear functional relationship; Based on the time-dependent damage effect, the two-parameter Weibull distribution function was introduced into the West Plains viscoelasticity model, and a creep damage model for white sandstone was proposed. The improved Nishihara model can simulate the uniaxial creep characteristics of each damaged rock sample at various stress levels. [ABSTRACT FROM AUTHOR]

Simple Summary: The malignant growth and therapy resistance of isocitrate dehydrogenase (IDH)-wildtype glioblastoma is thought to be driven by a subpopulation of tumor cells with cancer stem-like cell (CSC) properties. Employing a high-throughput in vitro drug screen, we identified LGK974 and berberine as drugs that impair wingless (WNT) signaling and can thereby sensitize glioblastoma stem-like cells (GSCs) to glucose starvation-induced cell death. The main goal of this study was to characterize the role of the WNT pathway in mediating the survival and metabolic plasticity of GSCs under nutrient-restricted growth conditions. Gas chromatography mass spectrometry (GC-MS) was used to determine WNT-specific alterations of intracellular metabolites in GSCs grown under nutrient restriction, i.e., glucose depletion, or under standard conditions. Metabolic fingerprints hold the promise to complement classic biomarkers, thus potentially aiding the prediction of tumor behavior and patient prognosis. Isocitrate dehydrogenase (IDH)-wildtype glioblastoma is the most common primary malignant brain tumor. It is associated with a particularly poor prognosis, as reflected by an overall median survival of only 15 months in patients who undergo a supramarginal surgical reduction of the tumor mass followed by combined chemoradiotherapy. The highly malignant nature of IDH-wildtype glioblastoma is thought to be driven by glioblastoma stem-like cells (GSCs) that harbor the ability of self-renewal, survival, and adaptability to challenging environmental conditions. The wingless (WNT) signaling pathway is a phylogenetically highly conserved stemness pathway, which promotes metabolic plasticity and adaptation to a nutrient-limited tumor microenvironment. To unravel the reciprocal regulation of the WNT pathway and the nutrient-limited microenvironment, glioblastoma cancer stem-like cells were cultured in a medium with either standard or reduced glucose concentrations for various time points (24, 48, and 72 h). Glucose depletion reduced cell viability and facilitated the survival of a small population of starvation-resistant tumor cells. The surviving cells demonstrated increased clonogenic and invasive properties as well as enhanced chemosensitivity to pharmacological inhibitors of the WNT pathway (LGK974, berberine). Glucose depletion partially led to the upregulation of WNT target genes such as CTNNB1, ZEB1, and AXIN2 at the mRNA and corresponding protein levels. LGK974 treatment alone or in combination with glucose depletion also altered the metabolite concentration in intracellular compartments, suggesting WNT-mediated metabolic regulation. Taken together, our findings suggest that WNT-mediated metabolic plasticity modulates the survival of GSCs under nutrient-restricted environmental conditions. [ABSTRACT FROM AUTHOR]

• The pepper endophyte Bacillus velezensis LY7 has antifungal activity. • Strain LY7 contains a rare cupin domain-containing protein OS with antifungal activity. • Cupin domain-containing protein OS induces the expression of genes in anthracnose. • LY7 increased JA and SA levels to improve the stress resistance of pepper plants. • LY7 treatment to seedlings has potential for pepper biocontrol and growth promotion. Anthracnose of pepper (Capsicum annuum L), caused by Colletotrichum scovillei , is one of the three major diseases of pepper that seriously impact yield and quality. As an alternative to the use of synthetic chemical pesticides, a variety of endophytic bacteria have been reported to be potential biocontrol agents with the ability to improve disease resistance and abiotic stress tolerance in host plants. However, the mechanisms of action by which these different bacterial biocontrol agents inhibit the onset and development of disease, in some cases, remains unclear. In the present study, the potential use of the endophytic bacterial strain Bacillus velezensis LY7, originally isolated from pepper leaves, as a biocontrol agent was evaluated. More specifically, the ability of LY7 to control anthracnose in pepper and promote growth was assessed in pot experiments in a greenhouse and in vitro assays. Results indicated that the use of B. velezensis LY7 enhanced the synthesis of jasmonic acid and other hormones in pepper plants, as well as increased disease resistance and plant growth. A 200 × dilution of LY7 fermentation broth reduced disease incidence up to 90.70 %, while also enhancing plant growth. The mechanism of action of LY7 was also evaluated. Results indicated that LY7 secreted an antibiotic protein possessing a cupin domain OS. RNA-sequence analysis of the transcriptome of C. scovillei at several timepoints after exposure to LY7 (24, 48, and 72 h) revealed the up- and down-regulation of several genes. More specifically, LY7 induced the expression of genes associated with biosynthesis pathways and transcription factors involved in anthracnose pathogenicity. Our results indicate that the LY7 strain of induces hormone synthesis in pepper plants that results in enhanced disease resistance and promotes growth, as well as enhances stress tolerance by enhancing antioxidant and defense-related enzyme activity. These results demonstrate the potential of using LY7 for the biocontrol of anthracnose in pepper plants. [ABSTRACT FROM AUTHOR]

Deep high-stress roadway excavation under unloading disturbance inevitably leads to damage deterioration of the surrounding rock, which poses a serious threat to its stability. To explore the energy characteristics of white sandstone damaged by peak front unloading, uniaxial compression tests were conducted on damaged rock samples. The results show that the peak strength and modulus of elasticity of the rock sample gradually decrease with increasing damage degrees. The external work input energy, releasable elastic strain energy and dissipation energy all decreased with increasing damage. Damage evolution curves and equations of the rock samples were obtained based on the damage instantiation model established by the principle of energy dissipation and release. The effects of unloading damage on the fracture characteristics of the rock samples were analysed from both macro and microscopic viewpoints, and the results showed that a micro fracture in the rock is transformed from brittle–ductile damage, while macroscopic damage occurs in the form of a "shear"-"splitting"-"mixed shear-splitting" damage process. This paper has certain research and reference value for understanding the damage evolution characteristics of rocks with peak front unloading damage. [ABSTRACT FROM AUTHOR]

There is a growing consensus that plant‐derived antimicrobials may be a safe and effective alternative to synthetic chemical preservatives against foodborne pathogens. This study aims to investigate the potential application of the stems and leaves of Astragalus membranaceus (AMSL) in food preservation. Antibacterial activity of AMSL was evaluated by the disk diffusion method and the minimum inhibitory concentration (MIC) assay, and then the activity stability at different conditions (temperatures, pHs and ultraviolet irradiations) was analyzed and the antibacterial mechanism was revealed. Chemical composition of the active substances was also identified by UPLC–MS/MS. The results showed that the extracts from AMSL had low activities against Geotrichum candidum and Escherichia coli, while good action on Staphylococcus aureus, Bacillus subtilis, Aspergillus flavus, and Candida albicans. In contrast, the ethyl acetate fraction (EAF) of AMSL was the most active against Bacillus subtilis with a diameter of inhibition zone of 15.75 mm and the MIC value of 12.5 mg/mL. EAF exhibited good stability against heating at 80°C for 30 min, 60 min exposure to UV light, and it was effective in pH range of 2.0–6.0. After treating by EAF, the growth of the Bacillus subtilis was inhibited with delayed logarithmic phase, and the cell wall and the cell membrane of the bacteria were damaged deduced from the increased extracellular activity of alkaline phosphatase, the leakage of nucleic acids, and the increase of extracellular conductivity. Further SEM and TEM analysis confirmed the destroying of the cell wall integrity and cell membrane permeability with visually wrinkled even empty cells caused by EAF. Subsequent analysis revealed that flavonoids were the predominant components of EAF, followed by organic acids. Our findings provided a theoretical possibility that the AMSL could be used as a natural food preservative in the food industry. [ABSTRACT FROM AUTHOR]

Quinoa panicle rot (QPR) is a novel disease that poses a significant threat to quinoa production in China. Typical symptoms on panicles include a film of pale pink, grey‐white, or dark brown mould on the grains during the grain‐filling stage. Furthermore, QPR causes quinoa grain discolouration, unfilling, and malformation. In total, 37 isolates were identified as belonging to three species: Trichothecium roseum (nine isolates), Alternaria alternata (12), and Fusarium citri (16) based on morphology, and phylogenetic and pathogenicity characterization. The present study shows for the first time that T. roseum, A. alternata, and F. citri are the pathogens responsible for QPR. An evaluation of the growth and germination rates revealed a significant difference among the three species, with T. roseum and F. citri isolates having higher fitness in warmer (25–30℃) and humid conditions (water activity ≥0.98). However, A. alternata preferred cooler (20–25℃) and more arid conditions, and germinated in a wide range of water activities (water activity of 0.90–1.00). Among the three species, T. roseum and F. citri are probably responsible for the pink and grey diseased grains in humid regions, and A. alternata for the black‐brown diseased grains in arid regions. Pathogenicity tests showed that all three species could infect the quinoa panicles. The results of this study provide a basis for the recognition and management of QPR. [ABSTRACT FROM AUTHOR]

Convolutional operations extracting effective features have been widely used in the field of deep learning. For the convolution is difficult to process set data, we propose two convolutional operators on fuzzy sets, and build a fuzzy granular classifier. Firstly, a fuzzy granulation is performed on single-atom features of classification systems to form fuzzy conditional granules and fuzzy decision granules. Then, a fuzzy conditional granular vector is constructed from the fuzzy conditional granules, and a convolutional operation is carried out on the granular vector. After that, a new fuzzy feature granule is obtained. The fuzzy feature granule is compared with its corresponding fuzzy decision granule. The result of comparison is back-propagated to the fuzzy granular vector. Simultaneously, weights of the fuzzy granular vector are modified. Thus, a fuzzy granular convolutional classifier is formed by iterating and optimizing the weights of fuzzy granular vectors several times. Furthermore, we prove the difference and derivative of fuzzy granular convolution, which provide a theoretical basis for the back-propagation of the fuzzy granular convolutional classifier. Finally, the convergence effects of the fuzzy granular convolutional operations and the classification performance of the proposed classifier are tested on some UCI datasets. The theoretical analysis and experimental results show that the convolutional operations of fuzzy granular vectors have the characteristics of fast convergence, and the fuzzy granular convolutional classifier obtains a better classification performance. [ABSTRACT FROM AUTHOR]

Progress toward intelligent human–robotic interactions requires monitoring sensors that are mechanically flexible, facile to implement, and able to harness recognition capability under harsh environments. Conventional sensing methods have been divided for human‐side collection or robot‐side feedback and are not designed with these criteria in mind. However, the iontronic polymer is an example of a general method that operates properly on both human skin (commonly known as skin electronics or iontronics) and the machine/robotic surface. Here, a unique iontronic composite (silk protein/glycerol/Ca(II) ion) and supportive molecular mechanism are developed to simultaneously achieve high conductivity (around 6 kΩ at 50 kHz), self‐healing (within minutes), strong stretchability (around 1000%), high strain sensitivity and transparency, and universal adhesiveness across a broad working temperature range (−40–120 °C). Those merits facilitate the development of iontronic sensing and the implementation of damage‐resilient robotic manipulation. Combined with a machine learning algorithm and specified data collection methods, the system is able to classify 1024 types of human and robot hand gestures under challenging scenarios and to offer excellent object recognition with an accuracy of 99.7%. [ABSTRACT FROM AUTHOR]

Objectives: Immunoglobulin A vasculitis (IgAV), previously known as Henoch–Schönlein purpura, is the most common vasculitis that has a classical skin manifestation of palpable purpuric rash. Factors pertinent to IgAV remain inadequately understood. Here, we aimed to examine the gut microbiome shifts associated with IgAV and its recovery. Methods: Stool samples were collected from 10 children with IgAV (6–14 years old) before and after a multi‐drug therapy, along with 9 age‐matched healthy children. The samples were subjected to metagenomic analyses to investigate the taxonomic and functional shifts of the gut microbiome. Results: The analyses revealed that compared with healthy controls, treatment‐naïve patients exhibited substantial taxonomic and functional alterations of gut microbiota, including 104 IgAV‐depleted species and 7 IgAV‐elevated species (FDR < 0.05). After treatment, the IgAV patients displayed a partial restoration of the microbiota shifts, as the relative abundances of some biomarkers (e.g. 9 genera and 22 species) became comparable (FDR > 0.1) between the patients and healthy controls. The treatment‐responsive features included Weissella, Faecalibacterium prausnitzii and Bifidobacterium pseudocatenulatum and three components of a putative glutamine transport system. Importantly, gram‐positive bacteria accounted for over 85% of the numbers and total relative abundance of the species that were associated with IgAV and responsive to the treatment. In addition, of the 122 IgAV‐depleted bacterial genes, 82 were mainly contributed by gram‐positive bacteria and 12 by gram‐negative bacteria. Conclusions: Gram‐positive bacteria are the main drivers underlying the gut microbiome shifts of IgAV, which may assist rational management of the disease. [ABSTRACT FROM AUTHOR]

Pancreatic cancer (PC) is the most frequently occurring cancer, with few effective treatments and a 5-year survival rate of only about 11%. It is characterized by stiff interstitium and pressure on blood vessels, leading to an increased glycolytic metabolism. PFKFB3 plays an important role in glycolysis, and its products (fructose-2,6-bisphosphate), which are allosteric PFK1 activators, limit the glycolytic rate. In this study, 14 PFKFB3 inhibitors were obtained by virtually screening the FDA-approved compound library. Subsequently, the in-vitro investigations confirmed that Lomitapide and Cabozantinib S-malate exhibit the excellent potential to inhibit PFKFB3. The combined administration of Lomitapide and Gemcitabine at a certain molar ratio indicated an enhanced anti-tumor effect in Orthotopic Pancreatic Cancer (OPC) models. This investigation provides a new treatment strategy for PC therapy. [Display omitted] [ABSTRACT FROM AUTHOR]

A pair of new enantiomeric indolopyridoquinazoline-type alkaloids, (+)-1,7 S ,8 R - and (−)-1,7 R ,8 S -trihydroxyrutaecarpine (3a and 3b), and a new limonoid-tyrosamine hybrid, austrosinin (8), along with six known alkaloids and limonoids, were isolated from the stems with leaves of Tetradium austrosinense. Their structures were elucidated on the basis of analysis of MS, NMR, ECD and time-dependent density functional theory-based electronic circular dichroism (TDDFT-ECD) calculations, as well as proposed biosynthetic pathway. An anti-inflammatory bioassay in vitro showed 8 had significant immunosuppressive effect against the production of pro-inflammatory cytokine TNF-α in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. [Display omitted] • Six alkaloids and three limonoids were isolated from Tetradium austrosinense. • A pair of enantiomeric indolopyridoquinazoline-type alkaloids were isolated and resolved. • Austrosinin is the first example of limonoid-tyrosamine hybrid from the nature source. • Austrosinin displayed significant immunosuppressive effect. [ABSTRACT FROM AUTHOR]

Composite bipolar plates (CBPs) are promising candidates in proton exchange membrane fuel cell (PEMFC) for achieving mechanical strength and electrical conductivity as well as chemical stability in acidic environments simultaneously. While widely-explored CBPs composed with Phenol-Formaldehyde (PF) resin as adhesive (donated as PF-CBP) deliver poor flexibility due to the numerous hard π-conjugation (benzene ring) in PF network structure, which is becoming the main bottleneck index and largely hindering the practical applications of CBP. Herein, we propose a co-polymerization method by introducing Epoxy (EP) into PF resin as adhesive for CBP (donated as PF-EP-CBP), by which abundant flexible segments (-CHOH-CH 2 -O-) from EP are demonstrated to be well embedded into the structure of PF resin for enhanced flexibility. The obtained PF-EP-CBP exhibits significantly improved flexural strength of 46.20 MPa, 1.57 times higher than pristine PF-CBP (29.58 MPa), which is also higher than the 2025 DOE targets (40 MPa). Moreover, the detailed areal specific resistance, thermal conductivity, H 2 permeability and corrosion behaviors are conducted systematically to support the single cell of PEMFC. The results provide a novel insight and convenient method on the adhesive tailoring by incorporating flexible linkers into resin network structure, which is of significance to drive the practical development of the CBPs in PEMFC fields. [Display omitted] • Epoxy is embedded in the resin network structure of Phenol-Formaldehyde. • The flexibility of resin network structure could be improved by embedding Epoxy. • The composite bipolar plates exhibit improved flexural strength of 46.20 MPa. [ABSTRACT FROM AUTHOR]

B Silk-Based Iontronics b In article number 2102596, Tiger H. Tao and co-workers report a unique silk-based iontronic composite to simultaneously achieve high conductivity, self-healing, strong stretchability, high strain sensitivity and transparency, and universal adhesiveness across a broad working temperature range. Robotic Manipulation under Harsh Conditions Using Self-Healing Silk-Based Iontronics (Adv. Sci. 2/2022) Those merits facilitate the implementation of damage-resilient intelligent robotic manipulation. [Extracted from the article]