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To analyze the influence of wind load on the axial cable force in the flexible cable supported photovoltaic (PV), wind loads on PV modules at different wind directions, inclinations and spacing ratios are obtained through rigid model wind tunnel test. Three models are established and the axial cable forces under different conditions are calculated. The results show that the wind load on PV module varies with the position, and the wind load in the middle range is stronger than in others. The axial force on the cable is larger when the wind load is exerted as a concentrated load. The variation of the forces on support system with different inclination is also inconsistent with the layout (spacing ratio). Based on the analysis results, the present results suggest using a small spacing ratio and a large span, and the spacing ratio should be within 0.1. The wind load on the photovoltaic panel can be treated as a concentrated force to calculate the cable force. Meanwhile, the axial cable force caused by wind load can be estimated by the proposed ratio of wind load to axial cable force. [ABSTRACT FROM AUTHOR]

Introduction: Postpartum endometritis is a prevalent reproductive disorder in bovines, leading to a prolonged open period, infertility, and other complications. While Lactobacillus strains can mitigate these conditions by reducing uterine inflammation, their effectiveness is limited due to a lack of direct anti microbial action and extended treatment duration. This study aimed to construct a recombinant Lactobacillus johnsonii strain expressing bovine Granulocyte-macrophage colony-stimulating factor (GM-CSF) to evaluate its potential in reducing postpartum uterine inflammation., Methods: The recombinant Lactobacillus johnsonii strain was engineered to express bovine GM-CSF and administered to pregnant mice via vaginal perfusion. Postpartum endometritis was induced using E. coli infection, and the protective effects of the engineered strain were assessed. Inflammatory markers (IL-6, IL-1β, TNF-α), myeloperoxidase (MPO) activity, and nitric oxide (NO) concentration were measured. Histological examination was performed to evaluate uterine morphology and pathological damage., Results: The recombinant L. johnsonii strain expressing GM-CSF significantly reduced inflammation levels induced by E. coli infection in the uterus. This reduction was evidenced by decreased expression of IL-6, IL-1β, TNF-α, as well as reduced MPO activity and NO concentration. Histological examination revealed improved uterine morphology and reduced pathological damage in mice treated with the recombinant GM-CSF strain. Crucially, the recombinant strain also exerts beneficial effects on bovine endometritis by reducing levels of inflammatory cytokines, suggesting a beneficial effect on clinical bovine endometritis., Conclusion: The recombinant Lactobacillus johnsonii expressing GM-CSF demonstrated protective effects against postpartum endometritis in bovines by reducing inflammatory cytokines. The findings indicate the potential clinical application of this engineered strain in preventing postpartum uterine inflammation, offering a novel and effective protective option for related disorders and improving bovine reproductive efficiency., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Guo, Cao, Li, Wang, Zhong, Wang, Fan, Zhao, Wang, Fang, Liu, Ding, Ma and Lu.)

Background: Pregnancy-induced hypertension is a common complication in obstetrics and an important cause of maternal death. We explored the correlations among stress, family function and coping mode in women with pregnancy-induced hypertension syndrome., Methods: A total of 58 pregnant women with pregnancy-induced hypertension syndrome were included in the study. The perceived stress scale (PSS), family assessment device (FAD), and medical coping modes questionnaire (MCMQ) were used to assess stress level, family function, and coping mode, respectively., Results: The PSS score was 28 (interquartile range: 20-43). The total FAD score was 128.1±27.1. The subscale scores were problem-solving, affective responsiveness, communication, roles, behavior control, affective involvement, and general function, in order of decreasing score. Significant correlations were noted between PSS score and total FAD score, affective responsiveness, problem-solving, communication, roles, affective involvement, and behavior control (all P<0.05). PSS score was significantly correlated with "Escape" (P=0.016) and "Yield" (P<0.001) in the MCMQ. Single-factor analysis showed that education level, average household income, and FAD total score were significantly different in those with a low or high PSS score. Logistic regression indicated the FAD total score as an independent factor for the PSS score., Conclusions: Women with pregnancy-induced hypertension syndrome with a high PSS score tended to adopt the "Escape" and "Yield" coping modes. Family function integrity is essential for reducing PSS scores.