简介:摘要:本文针对学生不易掌握导数含参数问题中参数该如何分类的问题,通过对几个典型问题的探究,结合流程图来对参数的分类方法和含参数问题的求解步骤来进行总结,形成解决此类问题的模式化解题方法。用流程图来体现参数的分类方法,直观明了,易理解,将解题思想流程化,易操作。
简介:【摘要】目的:探讨 7S管理法在院前急救救护车急救物品规范化管理中的应用效果。方法:将 2018年 7月至 2019年 3月实施 7S管理法前救护车急救物品质控情况设为对照组,将 2019年 4月至 2020年 1月实施 7S管理法后前救护车物品质控情况设为试验组,比较两组救护车内急救物品去用时间以及其完好率的差异。结果:试验组设备、药品取用时间显著短于对照组,且药品 /设备完好率优于对照组( p<0.05)。试验组医师对护士院前急救配合满意度达到 93.33%,较对照组的 60.0%明显升高( p<0.05)。结论: 7S管理法应用于院前急救救护车急救物品规范化管理中效果显著,能够切实保障急救车内设备、药物齐全完好,对于提高院前急救质量具有积极的作用。
简介:AbstractInfectious diseases remain as an important public health threat to humans. Research into pathogens can be useful for planning an organized response to infectious diseases. Bibliometric analysis is an important method for scientific research and assessing capability. In this study, 100 pathogens of public health importance were selected, and the distributions of annual, national, institutional, and journal publications on Science Citation Index (SCI) journals were statistically analyzed. The United States of America ranked the first in terms of the number of relevant studies published. China attaches great importance to the prevention and control of infectious diseases, but still needs to improve in the following areas: for example, insufficient SCI reports on particular pathogens, institutions SCI reports on pathogens lower than world top pathogen research institutions, and lack of influential international pathogen-related journals. Scientific literature databases are important tools for science-of-science analysis. The findings of this study shed light on the hot spots and the ignored spots in pathogen researches, and thus would be useful for drawing a national and institutional research plan.
简介:AbstractBackground:A surgical site infection (SSI) is a major post-operative complication from elective colorectal surgery; however, few studies have focused on evaluating the risk factors for SSI. This study aimed to analyze the relative correlation of medical and environmental factors as well as patient-related factors that contribute to the incidence of all types of SSI.Methods:A retrospective search for eligible patients was conducted using the patient database of the Gastrointestinal Surgery Center of the Third Affiliated Hospital of Sun Yat-sen University from January 2011 to August 2017. Pre-operative demographic and surgical data were extracted and recoded according to the study protocol. Univariate and multivariate analyses were performed to clarify factors affecting the incidence of SSI. Propensity analysis was conducted to minimize bias in the demographic characteristics to explore the prophylactic effect of pre-operative administration of oral antibiotics.Results:Univariate analysis of the baseline characteristics revealed that younger age (odds ratio [OR]: 0.378; 95% confidence interval [CI]: 0.218–0.657) and pre-operative oral antibiotic use (OR: 0.465; 95% CI: 0.255–0.850) were protective factors, while pre-operative anemia (OR: 4.591; 95% CI: 2.567–8.211), neoadjuvant chemotherapy history (OR: 2.398; 95% CI: 1.094–5.256), and longer surgical duration (OR: 2.393; 95% CI: 1.349–4.246; P = 0.002) were identified as risk factors for SSI. Multivariate analysis indicated that age (P = 0.003), surgical duration (P = 0.001), and pre-operative oral antibiotic use (P < 0.001) were independent factors that affect the incidence of SSI. Furthermore, a propensity-matched analysis confirmed the protective effect of oral antibiotic use, with a 1-day course of oral antibiotic producing a similar effect to a 3-day course.Conclusions:Age, surgical duration, and pre-operative oral antibiotic use were associated with the incidence of SSI. However, pre-operative oral antibiotic use was the only controllable factor. From the results of our study, pre-operative oral antibiotic use is recommended before elective colorectal surgery and a 1-day course is enough to provide the protective effect.
简介:【摘要】目的:探讨院前急救护理路径在脑卒中患者院前急救中的作用。方法:选择 2016年 9月 -2017年 1月期间呼救中心接收的 260例脑卒中患者,根据呼救先后顺序分为观察组 130例以及对照组患者 130例。对照组脑卒中患者按照常规护理进行救治,观察组脑卒中患者则根据院前急救护理路径进行救治,比较两组患者的治疗结局。结果:观察组脑卒中患者的呼救至救护车到达时间为 24.61±10.14min,对照组脑卒中患者呼救至救护车达到时间为 30.62±14.15min, P< 0.05;观察组脑卒中患者入院接受专科治疗时间为 38.68±10.49min,对照组脑卒中患者入院接受专科治疗时间为 46.72±12.49min, P< 0.05;观察组脑卒中患者的致残率和致死率分别为 9( 6.92%)、 5( 3.85%)较对照组患者 16( 12.31%)、 13( 10%)有明显的优势, P< 0.05。结论:脑卒中患者采用院前急救护理路径有效的缩短患者获得急救时间间隔,阻止病情的恶化,改善不良治疗结局。