老年帕金森病患者应用跌倒风险评估与干预策略效果分析

目的:探讨老年帕金森病患者预防跌倒应用跌倒风险评估与干预策略的效果。方法:选择医院收治的120例老年帕金森病患者作为研究对象,采用随机抽样法将其分为对照组和实验组,每组60例患者,对照组患者采用常规防跌倒护理方式,实验组采用跌倒风险评估与干预策略,比较两组患者的预防效果、护理满意度。结果:入院时,两组患者预防跌倒知识、信念、行为评分对比,差异无统计学意义(P>0.05),出院后,两组患者评分均提高,且实验组明显高于对照组(P<0.05);经过护理干预后,实验组患者跌倒发生率低于对照组,差异具有统计学意义(P<0.05);实验组患者的护理满意度高于对照组,差异具有统计学意义(P<0.05)。结论:老年帕金森病患者应用跌倒风险评估与干预策略具有良好预防跌倒的效果,辅助护理人员及时发现患者的跌倒因素,及时采取针对性的预防措施,降低跌倒的发生率,提高老年帕金森病患者预防跌倒知识、信念和行为的能力,值得在临床推广和应用。

用于皮秒激光切割的贝塞尔镜头研究

设计并研制了一套用于激光切割的贝塞尔镜头及光束检测系统.此外,采用设计的贝塞尔镜头与中心波长为1064 nm的皮秒脉冲激光器产生皮秒贝塞尔光束,对厚度为1 mm的硅酸盐玻璃进行了切割实验.结果表明,一定直径的高斯光束入射到此贝塞尔镜头上,产生的贝塞尔光束中心主瓣直径和无衍射传输距离分别达到3.4μm和2.46 mm;切割实验中,玻璃分离前的表面微孔直径不超过设计的贝塞尔光束中心主瓣直径.本文设计的贝塞尔镜头及光束检测系统能够满足激光切割应用要求.

Utilization of Thermal Infrared Image for Inversion of Winter Wheat Yield and Biomass

The present paper utilizes thermal infrared image for inversion of winter wheat yield and biomass with different technology of irrigation(drip irrigation,sprinkler irrigation,flood irrigation).It is the first time that thermal infrared image is used for predicting the winter wheat yield and biomass.The temperature of crop and background was measured by thermal infrared image.It is necessary to get the crop background separation index(CBSIL,CBSIH),which can be used for distinguishing the crop value from the image.CBSIL and CBSIH(the temperature when the leaves are wet adequately;the temperature when the stomata of leaf is closed completely) are the threshold values.The temperature of crop ranged from CBSIL to CBSIH.Then the ICWSI was calculated based on relevant theoretical method.The value of stomata leaf has strong negative correlation with ICWSI proving the reliable value of ICWSI.In order to construct the high accuracy simulation model,the samples were divided into two parts.One was used for constructing the simulation model,the other for checking the accuracy of the model.Such result of the model was concluded as:(1) As for the simulation model of soil moisture,the correlation coefficient(R2) is larger than 0.887 6,the average of relative error(Er) ranges from 13.33% to 16.88%;(2) As for the simulation model of winter wheat yield,drip irrigation(0.887 6,16.89%,-0.12),sprinkler irrigation(0.970 0,14.85%,-0.12),flood irrigation(0.969 0,18.87%,0.18),with the values of R2,Er and CRM listed in the parentheses followed by the individual term.(3) As for winter wheat biomass,drip irrigation(0.980 0,13.70%,0.13),sprinkler irrigation(0.95,13.15%,-0.14),flood irrigation(0.970 0,14.48%,-0.13),and the values in the parentheses are demonstrated the same as above.Both the CRM and Er are shown to be very low values,which points to the accuracy and reliability of the model investigated.The accuracy of model is high and reliable.The results indicated that thermal infrared image can be used potentially for inversion of winter wheat yield and biomass.

基于有序Logistic回归模型的H型高血压疗效影响因素研究

目的探讨H型高血压的降压疗效及其影响因素,为H型高血压的防治提供科学依据。方法选取2019年5月-2020年12月在湖南省怀化市辖区社区中重度H型高血压患者300例,采用随机数字表法将研究对象分成综合干预组、治疗组和对照组,每组100例,分别予以口服马来酸依那普利叶酸片+氨氯地平联合行为生活方式综合干预、马来酸依那普利叶酸片+氨氯地平、马来酸依那普利+氨氯地平治疗6个月,观察用药前后各组患者的血压及血浆同型半胱氨酸(Hcy)水平,并对年龄、性别、分组干预方式、生活水平、高血压家族史、吸烟、饮酒、饮食习惯、工作性质、是否患肾脏疾病、不良反应、用药依从性进行有序多分类Logistic回归分析。结果治疗6个月后,综合干预组、治疗组及对照组的降压总有效率分别为92.71%,90.22%和91.11%,差异无统计学意义(P>0.05);三组收缩压(SBP)、舒张压(DBP)较治疗前均降低,差异有统计学意义(P<0.05);综合干预组、治疗组血浆Hcy水平较治疗前降低(P<0.05);H型高血压患者疗效影响因素的单因素回归分析显示,分组干预方式、吸烟、是否患肾脏疾病、用药依从性与H型高血压疗效有关;多因素有序Logistic回归分析显示,分组干预方式、是否患肾脏疾病、用药依从性是H型高血压疗效的独立影响因素。结论三组H型高血压患者均能有效控制血压,不同治疗及干预方式、是否患肾脏疾病、用药依从性是影响H型高血压疗效的独立相关因素。