Objective: To systematically evaluate the willingness to receive influenza vaccines among Chinese medical staff, so as to provide the evidence for developing the influenza vaccination strategy and improving the coverage of influenza vaccination among medical staff. Methods: Publications pertaining to the willingness to receive influenza vaccines among Chinese medical staff were retrieved from international and national databases from January 1, 2010 to October 1, 2023, including CNKI, Wanfang Data, VIP, SinoMed, PubMed, Web of Science and Embase. A meta-analysis was performed using the software Stata 17.0, sensitivity analysis was performed using the leave-one-out method, and the publication bias was evaluated using Funnel plot. Results: Totally 674 publications were retrieved, and 17 case-control studies were finally enrolled, with 23 697 participants. Meta-analysis showed that the rate of willingness to receive influenza vaccines among medical staff in China was 52.8% (95%CI: 41.3%-64.4%). The rates of willingness to receive influenza vaccines were 40.2% (95%CI: 28.5%-51.8%) in 2019 and before and 67.2% (95%CI: 56.5%-77.9%) in 2020 and beyond; 54.6% (95%CI: 44.2%-65.0%) in men and 56.8% (95%CI: 49.3%-64.4%) in women; 53.6% (95%CI: 40.9%-66.2%) in doctors, 53.9% (95%CI: 41.0%-66.8%) in nurses, 62.8% (95%CI: 46.2%-79.3%) in technicians and 53.1% (95%CI: 36.1%-70.0%) in administrative and logistical staff; 77.4% (95%CI: 63.7%-91.2%) and 43.3% (95%CI: 30.5%-56.1%) in staff with and without a history of influenza vaccination; 49.8% (95%CI: 27.3%-72.3%) and 58.3% (95%CI: 43.9%-72.6%) in studies with a sample size of <1 000 and ≥1 000, and these differences were statistically significant (all P<0.05). Sensitivity analysis showed robustness of results, and Funnel plot showed publication bias. Conclusion The rates of willingness to receive influenza vaccines among medical staff in China ranged from 41.3% to 64.4%, and were lower in studies in 2019 and before, in men, in administrative and logistical staff and in staff without a history of influenza vaccination.

OBJECTIVESpecies containing extremely aromatic compounds in leaves of Chimonanthus was analyzed to evaluate its genetic diversity and genetic relationships.

METHODAFLP molecular marker technique was used in the study, UPGMA cluster analysis was conducted with the software of POPGENE32.

RESULTSFive hundred and fifty-nine bands were amplified by 10 pairs of primers screened, of which 226 bands were polymorphic, and the percentage of polymorphic bands was 36.8%. Observed number of alleles, effective number of alleles, Nei's genetic diversity index and Shannon's information index were 1.992 6, 1.306 5, 0.199 2 and 0.325 1, respectively. Genetic distances of the 21 populations were ranged from 0.039 2 to 0.289 4.

CONCLUSIONSpecies containing extremely aromatic compounds in leaves of Chimonanthus with low genetic diversity play an important role in enhancing the protection of species and germplasm resources. Form the molecular level, the studies demonstrated the correctness of the result by Zhang Ruohui that species containing extremely aromatic compounds in leaves of Chimonanthus were divided into Ch. salicifolius, Ch. Zhejiangensis, Ch. nitens and Ch. grammatus.

Amplified Fragment Length Polymorphism Analysis ; Calycanthaceae ; classification ; genetics ; DNA, Plant ; genetics ; Genetic Variation ; genetics

Objective:To explore and construct the nursing quality standards of spine surgery, provide a scientific basis for improving the nursing quality of spine surgery.Methods:Taking the "structure-process-outcome" three-dimensional quality model as the theoretical framework, through evidenced-based literature search and semi-structured interview, the items pool was formed, and finally the nursing quality standards were determined by two rounds of Delphi method of expert inquiry from May to July 2023.Results:The positive coefficients of the two rounds of inquiries to experts were 0.90 and 1.00, respectively. The authority coefficients were 0.946 and 0.951, respectively. The Kendall coefficients of the first, second and third level standards in the first round were 0.161, 0.095 and 0.108, respectively, and the Kendall coefficients of the first, second and third level standards in the second round were 0.162, 0.088 and 0.100, respectively, the differences were statistically significant (all P<0.05). The final nursing quality standards were finally constructed, including 3 first-level standards (structural quality, process quality and outcome quality), 20 second-level standards and 60 third-level standards.Conclusions:The nursing quality standards of spine surgery based on the three-dimensional quality model of "structure-process-outcome" have high reliability and science, which can provide target incentives for clinical nurses, provide a basis for the quality of specialized spine nursing, and promote the development of nursing specialization and the construction of nursing discipline.

O BJECTIVE To optimize stir-frying with saltwater technology of Citrus reticulata . METHODS Taking the contents of limonin ，nomilin and obacunone ，color difference value and free radical scavenging rate of 1，1-diphenyl-2-trinitrophenyl hydrazine （DPPH） as the indexes ，the entropy weight method was used for comprehensive evaluation. The stir-frying with saltwater technology of C. reticulata was optimized by central composite design-response surface method by using water-salt ratio ，stewing time，frying temperature and frying time as factors. RESULTS The optimal stir-frying with saltwater technology of C. reticulata included water-salt ratio of 8 ∶ 1（mL/g），stewing time of 22 min，frying time of 9 min and frying temperature of 158 ℃. After three times of validation tests ，the average comprehensive score of the optimized technology was 92.35（RSD＝2.19％），and its relative error with the predicted value （93.25）was 1.10％. CONCLUSIONS The optimal stir-frying with saltwater technology is stable and feasible.