Jining Normal University

Abstract Pediococcus pentosaceus is an important lactic acid bacterium widely utilised in fermented foods and animal probiotic preparations. However, strains derived from sheep remain relatively limited in systematic screening and genomic characterisation studies. This research isolated lactic acid bacteria from healthy Chahar sheep and screened strains with application potential through phenotypic evaluation, probiotic property analysis, and whole-genome sequencing. Results indicate that strain SSF2 exhibits rapid acid production capacity, strong bile salt tolerance, survival in simulated gastrointestinal environments, and significant antibacterial activity against major pathogens including Escherichia coli , Salmonella , Staphylococcus aureus , and Vibrio parahaemolyticus . SSF2 exhibits no haemolytic activity and maintains sensitivity to commonly used clinical antibiotics. Genome sequencing revealed SSF2 possesses a 1.85 Mb circular chromosome and two plasmids, encoding functional genes involved in carbohydrate metabolism, amino acid metabolism, stress tolerance, and potential bacteriocin biosynthesis. No virulence factors or antibiotic resistance genes were detected. Overall, both its phenotypic and genomic characteristics indicate that P. pentosaceus SSF2 is a safe and promising probiotic candidate strain with potential applications in ruminant feed additives and food biotechnology.

This paper investigates the chaotic and pattern dynamics of the time-fractional Ginzburg–Landau equation. First, we propose a high-precision numerical method that combines finite difference schemes with an improved Grünwald–Letnikov fractional derivative approximation. Subsequently, the effectiveness of the proposed method is validated through systematic comparisons with classical numerical approaches. Finally, numerical simulations based on this method reveal rich dynamical phenomena in the fractional Ginzburg–Landau equation: the system exhibits complex behaviors including chaotic oscillations and novel two- and three-dimensional pattern structures. This study not only advances the theoretical development of numerical solutions for fractional GLE but also provides a reliable computational tool for deeper understanding of its complex dynamical mechanisms.

This article summarizes recent advances in the understanding of RNA-binding proteins (RBPs), with a focus on their roles in exercise-induced mRNA regulation and their implications for schizophrenia (SZ). RBPs are critical regulators of mRNA stability, splicing, transport, translation, and degradation, directly influencing gene expression through sequence- and structure-specific binding. In the nervous system, RBPs sustain synaptic plasticity, neural development, and neuronal homeostasis. Emerging evidence shows that exercise modulates the expression and activity of RBPs, thereby influencing mRNA translation and neurotransmitter signaling, which may underlie its beneficial effects on brain function. Dysregulation of specific RBPs has been identified in SZ, implicating them in disrupted synaptic transmission, impaired plasticity, and neuroinflammation. RBPs involved in memory and emotional regulation show marked dysfunction in SZ patients. Some RBPs have been proposed as potential biomarkers for early diagnosis and treatment monitoring. Moreover, therapeutic modulation of RBPs, through pharmacological or behavioral interventions such as exercise, may restore neuronal function by targeting post-transcriptional gene regulation. Exercise, as a non-invasive modulator of RBP expression, holds promise as an adjunctive strategy in SZ treatment, particularly in early stages. Further research into RBP-mediated pathways may offer novel insights into SZ pathophysiology and inform the development of targeted interventions.

This chapter proposal seeks to enhance the field of teacher education by offering a detailed guide for educators and policymakers on integrating Funds of Knowledge. It underscores the significance of cultural, linguistic, and ecological diversity in fostering inclusive and equitable learning environments. The chapter will present practical strategies for recognizing and incorporating students' Funds of Knowledge into the curriculum, promoting teaching practices that celebrate diversity. Key components include methods for valuing students' cultural and ecological assets, engaging in reflective practice, and collaborating with families and communities. The chapter will also advocate for policy changes that support diversity, ensuring all students are seen, heard, and empowered. Balancing local knowledge with global educational standards is crucial for educational excellence. The proposed chapter envisions a culturally responsive, ecologically mindful education system.

Massive multiple-input multiple-output (Massive MIMO) equipped with lens antenna arrays (LAAs), known as beamspace Massive MIMO, can focus signals into specific beams to enhance the performance and efficiency of millimeter-wave (mmWave) wireless communication systems. However, the channel estimation is extremely challenging, since the number of radio frequency (RF) chains is considerably smaller than the number of antennas. Furthermore, due to the beam squint effect in wideband mmWave systems, the channel estimation is further complicated. To tackle these challenges, we propose an improved vector approximate message passing (VAMP) scheme for the wideband beamspace channel estimation. Specifically, the channel estimation is firstly formulated as a sparse signal recovery problem, where the sparse signals can be recovered from a limited number of noisy measurements. Then, a novel shrinkage function is derived for the VAMP algorithm to enhance estimation accuracy. Finally, by replacing the original shrinkage function of VAMP with the proposed function, the improved VAMP algorithm can estimate the wideband beamspace channel with greater accuracy. Simulation results confirm the effectiveness of the proposed scheme and demonstrate its superior performance in channel estimation.

The HKT-type proteins have been extensively studied and have been shown to play important roles in long-distance Na+ transport, maintaining ion homoeostasis and improving salt tolerance in plants. However, there have been no reports on the types, characteristics and functions of HKT-type proteins in Limonium bicolor, a recretohalophyte species with the typical salt gland structure. In this study, five LbHKT genes were identified in L. bicolor, all belonging to subfamily 1 (HKT1). There are many cis-acting elements related to abiotic/biotic stress response on the promoters of the LbHKT genes. LbHKT1;1 was investigated in detail. Subcellular localization results showed that LbHKT1;1 is targeted to the plasma membrane. Functional analysis in yeast showed that LbHKT1;1 has a higher tolerance than AtHKT1;1 under high Na+ conditions. Silencing and overexpression of the LbHKT1;1 gene in L. bicolor showed that LbHKT1;1 negatively regulates salt secretion by the salt glands. Further experiments showed that LbbZIP52 can specifically bind to the ABRE element in the LbHKT1;1 promoter and regulate the expression of the LbHKT1;1 gene and is involved in the negative regulation of the salt secretion capacity of L. bicolor. This study demonstrates for the first time that the HKT-type protein is involved in salt secretion by salt glands and provides a new perspective on the function of HKT-type proteins under salt stress conditions.