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[Objective] In order to accurately estimate net primary productivity (NPP) of vegetation under the context of rising atmospheric CO2 concentrations. [Methods] A CO2 concentration factor was introduced into the Carnegie-Ames-Stanford Approach (CASA) model to simulate the maximum light use efficiency of different vegetation types. Based on this, the potential of the improved model for NPP estimation was explored. [Results] From 2000 to 2020, the annual average atmospheric CO2 concentration in China's terrestrial areas showed a significant increasing trend, with an average increase of approximately 2.14 μmol/(mon·a). After incorporating the CO2 stress factor, the vegetation types were ranked by maximum light use efficiency in the following order cropland>evergreen broadleaf forest>mixed forest>needleleaf forest>shrub>wetland>grassland (1.85, 1.69, 1.30, 0.87, 0.52, 0.40, 0.40 g/MJ). The estimation accuracy of NPP by the CASA_CO2 model was improved compared to the original CASA model. The R2 between the simulated and measured NPP values at the vegetation level and the comprehensive level increased by -0.1% to 3.7% and 0.5%, respectively, and RMSE decreased by 0.3% to 9.2% and 0.7%, respectively. The RMSE of annual NPP estimation results decreased by 1.9%. The CASA_CO2 model improved the underestimation of overall NPP by the CASA model, reducing it from 10.62% to 9.81%. The CASA_CO2 model underestimated the overall NPP for spring, autumn, and winter by 5.11%, 2.72%, and 2.51%, respectively, while overestimating it for summer by 0.53%. [Conclusion] Considering the impact of CO2 concentration changes on vegetation in the model can improve the accuracy of NPP estimation.

Potato protein deaminated for different durations (0, 0.5, 3, 6 and 12 h) were used to prepare emulsions, and the products obtained were evaluated for droplet size distribution, emulsion stability, microrheological properties and microstructure. The results showed that the droplet volume mean diameter and Turbiscan stability index (TSI) of the emulsion decreased first and then increased with increasing deamidation time. The emulsions with potato protein deaminated for 3 and 6 h exhibited uniform droplet size distribution and good stability, which may be because the increased electrostatic repulsion between the modified protein emulsion droplets prevented their aggregation. The droplet size of the emulsion with potato protein deaminated for 12 h increased and the stability decreased, which may be because of the decreased charge repulsion force and consequent droplet aggregation. The microrheological analysis showed that the emulsion with potato protein deaminated for 6 h had the highest macroscopic viscosity index (MVI) value and the highest viscosity, and the speed of droplet movement was slowed down. There was a strong force between the emulsion droplets, which made the system more stable. This study can provide a reference for further research and development of potato protein products in order to improve the utilization rate of potato protein and expand the application range.

Objective To explore the role of chest pain nurse in the emergency management of patients with ST-elevation myocardial infarction (STEMI). Methods Basing on the requirement of chest pain center construction, a group of chest pain full-time nurses were recruited in emergency room and catheter room for Digital subtraction angiography (DSA), and the emergency care process of STEMI patients was modified. A total of 60 cases in control group adopted routine emergency care mode, and another 58 cases in the experimental group adopted modified emergency care model. The time period of key interventions in the process of emergency management were calculated. Results The duration between hospital admission and admission to the emergency room, between hospital admission and first ECG diagnosis, between clinical admission and blood draw for cardiac troponin T test, cardiac troponin T test, between hospital admission and emergency room discharge, between catheterization room activation and catheterization room admission, between catheterization room admission and onset of PCU, Door-to-Balloon Time (D2B) in the experimental group was shorter than that in the control group, respectively (P＜0. 05). Conclusion In the emergency management of STEMI patients, the establishment of chest pain nurses are helpful to shorten the period first aid in hospital, improve the efficiency of emergency treatment. (目的 探讨专职胸痛护士在ST段抬高型心肌梗死(STEMI)患者急救中的作用。方法 基于胸痛中心建设要求, 通过在急诊室、导管室设立专职胸痛护士岗, 优化STEMI患者急救护理流程, 对流程优化前2019年1月—10月(对照组60例)和流程优化后2020年1月—10月(研究组58例)STEMI患者的相关救治节点时间进行比较。结果 研究组患者入门-抢救室接诊时间、入门-首份心电图诊断时间、接诊-肌钙蛋白抽血时间、肌钙蛋白抽血-肌钙蛋白报告时间、入门-离开急诊时间、导管室激活-到达导管室时间、到达导管室-PCI造影开始时间、门诊-首次球囊扩张(D2B)时间均短于对照组, 差异有统计学意义(P＜0. 05)。结论 在STEMI患者急救中, 设立专职胸痛护士有助于改善STEMI患者院内急救延误环节, 提高急救效率。)

In 2020 and 2021, peach fruit with natural disease and decay were collected from orchards in Zhejiang Province. Then the fungal pathogens were isolated from the diseased spots and identified by morphological characteristics, molecular biological identification (rDNA-ITS sequence analysis) and pathogenicity detection. The antifungal effect of cinnamon essential oil on the fungal pathogens in vitro and in vivo were also investigated. The results showed that two fungal pathogens with strong pathogenicity were isolated, and identified as Monilinia fructicola and Rhizopus stolonifer, which caused brown rot and soft rot, respectively. Cinnamon essential oil inhibited the growth of M. fructicola and R. stolonifer, and the minimum inhibitory concentrations were 0.4 and 0.8 mL/L, respectively. M. fructicola was more sensitive to cinnamon essential oil. Cinnamon essential oil fumigation could reduce the disease incidence and lesion diameter of brown rot and soft rot of peach fruit caused by these two fungal pathogens. Therefore, cinnamon essential oil could be used as a natural fungicide to control fungal diseases of peach fruit. [ABSTRACT FROM AUTHOR]

Objective To investigate the current situation of work-related stress in emergency nurses, and to discuss related countermeasures. Methods: The self-designed questionnaire was used to investigate the work-related stress of 44 nurses in the emergency room. The stress status and sources of the subjects at work were obtained and the countermeasures were carried out. All patients were investigated by a self-designed working-condition questionnaire before and 6 months after the implementation of the stress coping strategy. Results: There were 25(56.82%)nurses suffering from moderate, severe or extremely severe range of work-related stress. The nurse-patient relationship and personal factors were two main sources of work-related stress, accounting for 50.00% and 34.09%, respectively. Factor scores for the assessment of nurses' physical condition, psychological condition, nurse-patient relationship and working attitude were improve after the implementation of the stress coping strategy(P<0.05). Conclusion: Emergency nurses are under great pressure at work, and there were various sources of work-related stress. Scientific stress coping strategy can help nurses to relieve stress, ensure physical and mental health, and improve work efficiency at the same time. [ABSTRACT FROM AUTHOR]

Objective: To evaluate the efficacy and safety of auto-crosslinked hyaluronic acid (HA) gel for preventing intrauterine adhesion (IUA) after hysteroscopic adhesiolysis., Methods: A prospective, randomized, double blinded and controlled clinical trial (level I) was performed. According to American Fertility Society (AFS) scoring system, 120 patients (treatment group: 60 cases, control group: 60 cases) with moderate to severe IUA were enrolled. Upon completion of adhesiolysis, a Foley balloon catheter was first introduced into the uterine cavity and then 3 ml of auto-crosslinked HA gel for patients in the treatment group; patients in the control group, however, only received Foley balloon catheter. Second-look hysteroscopic examination was performed to all patients at 3 months postoperatively for evaluation of IUA. Primary endpoint was the reduction rate of IUA at 3 months after surgery. The secondary endpoints include total AFS score, score of each individual AFS category., Results: At 3 months after surgery, auto-crosslinked HA gel resulted in significantly higher effective rate for reduction of adhesion, the effective rate were 76% (42/55) and 48% (27/56) respectively (P = 0.000 9); the total AFS score of treatment group was 2.1 ± 1.1, and significantly lower than that of control group (3.7 ± 2.5, P = 0.000 8). Application of auto-crosslinked HA gel after surgery significantly enhanced the improvement for each individual patient with regard to their adhesive type and menstrual pattern (P = 0.037 8, P = 0.000 4). The treatment group had significantly lower proportion of patients with moderate to severe adhesive stages than that of control group [13% (7/55) versus 38% (21/56), P = 0.000 6]. No adverse events and complications were observed., Conclusions: Auto-crosslinked HA gel coule be able to reduce IUA, decrease adhesion severity, and improve menopause postoperatively. This absorbable auto-crosslinked HA gel is proposed as a barrier for preventing IUA after intrauterine procedures.