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Chronic atrophic gastritis (CAG) is a common digestive system disease and a type of chronic gastritis disease progression. The study found that its incidence rate and detection rate increased significantly with age. Currently, there is no definitive treatment in Western medicine, and conservative treatment in traditional Chinese medicine is mostly used in clinical practice. This method can delay or prevent the progression of the disease, reduce the risk of cancer, and improve the clinical symptoms of patients. This article mainly reviews the commonly used Traditional Chinese medicine nursing methods for patients with chronic atrophic gastritis in recent years, and provided reference for establishing strategies for clinical nursing practice. (慢性萎缩性胃炎(CAG)是临床常见的消化系统疾病, 是慢性胃炎疾病进展的一种类型, 随年龄的增长其发病率及检出率明显增加。目前临床治疗CAG以保守治疗为主, 延缓或阻止病变的进展、降低癌变风险, 改善患者的临床症状。本研究就CAG临床常用的中医护理方法进行综述, 以期为CAG患者护理策略的制定提供有效参考。)

In the context of modern education, it is essential for the sustainable development of the computer discipline to continuously explore the general process of course teaching and the strategy of class reform through the practice of new teaching methods. This paper discusses the practical application of the BOPPPS model teaching method in computer network courses and the strategy for class reform. The BOPPPS teaching model creates six teaching sessions in the Computer Networks course, which include an introduction, learning objectives, pre-test, participatory learning, post-test, and summary. Finally, we used student performance analysis and student questionnaires to understand the teaching effect of this teaching model. The study’s findings revealed that the average score of the case study questions in the experimental class was 3.32 points higher than that of the control class after adopting the BOPPPS teaching mode. During the learning process, both 33.5% and 39.5% of students expressed their ability to clarify and recognize learning objectives and think independently.

STUDY QUESTION Are serum vitamin D levels associated with the incidence of endometrial polyps (EPs) in infertile patients? SUMMARY ANSWER Serum 25(OH)D levels were nonlinearly correlated with the incidence of EPs in infertile women. WHAT IS KNOWN ALREADY EPs are a common condition that may affect the receptivity of the endometrium in women of reproductive age. Vitamin D regulates cell proliferation and differentiation, apoptosis, angiogenesis, anti-inflammation, and immunomodulation, in addition to its well-known functions in balancing calcium and phosphorus. Previous studies have shown that vitamin D concentrations are associated with reproductive outcomes, and that low vitamin D levels are associated with the incidence of colorectal polyps and nasal polyps. There is little evidence regarding the relationship between EPs and serum vitamin D levels. STUDY DESIGN, SIZE, DURATION We conducted a cross-sectional study using data from Guangdong Women and Children Hospital from January 2019 to October 2023, enrolling 3107 patients. PARTICIPANTS/MATERIALS, SETTING, METHODS A total of 3107 infertile patients who underwent hysteroscopy were included in this study; 642 patients had endometrial polyps and 2465 had a normal uterine cavity. Hysteroscopy findings included risk of EPs, polyp size, percentage of multiple polyps, and incidence of chronic endometritis (CE). Serum vitamin D were assessed by measuring total 25(OH)D using chemiluminescence. According to international guideline recommendations for vitamin D deficiency, patients were divided into two groups: the <50 nmol/l group and the ≥50 nmol/l group. Univariable and multivariable logistic regression models, stratified analyses, and smooth curve fitting were used to examine the relationship between serum 25(OH)D levels and risk of EPs. MAIN RESULTS AND THE ROLE OF CHANCE Of all patients, 23.8% (740/3107) were vitamin D deficient (<50 nmol/l). The incidence of EPs was significantly higher in the 25(OH)D < 50 nmol/l group than in the ≥50 nmol/l group (24.9% vs 19.3%; P  =   0.001). However, there were no differences in polyp size, proportion of multiple polyps, and presence of CE between the two groups. After controlling for confounders, 25(OH)D ≥ 50 nmol/l (compared with <50 nmol/l) was negatively associated with risk of EPs (adjusted OR, 0.733; 95% CI, 0.598–0.898). Other variables that had an impact on polyp incidence included BMI, type of infertility, CA125, and CD138-positive plasma cells. In addition, a linear regression model between age and serum 25(OH)D levels showed a positive linear association. Subgroup analyses were performed for different age groups, and the risk of EPs was significantly higher in the 25(OH)D < 50 nmol/l group than in the ≥50 nmol/l group, both in the younger subgroup (23.8% vs 19.1%) and in the older subgroup (28.0% vs 19.9%). The smooth curve fitting model showed a nonlinear correlation between 25(OH)D levels and risk of EPs (nonlinear P- value = 0.020), with an optimal threshold of 51.8 nmol/l for 25(OH)D levels. Moreover, subgroup smooth curve fitting models showed a nonlinear correlation between 25(OH)D levels and polyp risk in patients aged <35 years (nonlinear P- value = 0.010), whereas a linear correlation between 25(OH)D levels and polyp risk was found in patients aged ≥35 years (nonlinear P -value = 0.682). LIMITATIONS, REASONS FOR CAUTION Caution should be exercised in interpreting our findings as this is a correlational study and causality cannot be inferred from our results. In addition, because of strict inclusion and exclusion criteria, our results may not be generalizable to unselected populations, including premenopausal women or women of other races. WIDER IMPLICATIONS OF THE FINDINGS This study demonstrated for the first time that vitamin D deficiency is an independent risk factor for the incidence of EPs in infertile patients. Identifying modifiable risk factors (e.g. vitamin D deficiency) can help in the development of new strategies for treating polyps or to protect against polyp development. Further clinical intervention trials and laboratory studies are needed to evaluate the effect of vitamin D on the development of EPs and to elucidate the mechanisms. STUDY FUNDING/COMPETING INTEREST(S) The study was funded by the National Natural Science Foundation of China (82101718) and Natural Science Foundation of Guangdong Province, China (2022A1515010776). No competing interest was involved in this study. TRIAL REGISTRATION NUMBER N/A. [ABSTRACT FROM AUTHOR]

Manipulating the electronic structure and geometric coordination environment of single metal atoms has been considered as promising approach for enhancing dipole polarization and enriching electromagnetic attenuation mechanisms. However, achieving precise control of the dielectric polarization response at atomic scale remains a huge challenge. Herein, a metal‐acetate coordination complexes‐assisted strategy is proposed to prepare spatially isolated cobalt (Co) atoms embedded in accordion‐like nitrogen‐doped carbon (NC) matrix. The interactions between metal atoms and NC matrix are carefully tailored through the successive evolution of dispersion states of Co species, ranging from individual atoms to atomic clusters to nanoparticles. Density functional theory reveals that the orbital hybridization between the d electrons of embedded Co atoms and p electrons of coordinated N atoms induces the electron redistribution at N sites, enabling enhanced electric dipole polarization and robust room temperature magnetism (a saturation magnetization of 0.108 emu g−1 at 300 K). Consequently, Co‐SAs@NC exhibits optimal electromagnetic wave absorption properties with a minimum reflection loss of ‐54.4 dB and an effective absorption bandwidth of 8.4 GHz. This work demonstrates an efficient strategy for modulating electromagnetic response at atomic level and provides a novel insight into the d/p electrons orbital hybridization between single metal atoms and NC species. [ABSTRACT FROM AUTHOR]