The Zenith Hydrostatic Delay(ZHD)is essential for high-precision Global Navigation Satellite System(GNSS)and Very Long Baseline Interferometry(VLBI)data processing.Accurate estimation of ZHD relies on in situ atmosphe...The Zenith Hydrostatic Delay(ZHD)is essential for high-precision Global Navigation Satellite System(GNSS)and Very Long Baseline Interferometry(VLBI)data processing.Accurate estimation of ZHD relies on in situ atmospheric pressure,which is primarily variable in the vertical direction.Current atmospheric pressure is either site-specific or has limited spatial coverage,necessitating vertical corrections for broader applicability.This study introduces a model that uses a Gaussian function for the vertical correction of atmospheric pressure when in situ meteorological observations are unavailable.Validation with the fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis(ERA5)reveals an average Bias and RMS for the new model of 0.31 h Pa and 2.96 h Pa,respectively.This corresponds to improvements of 37.5%and 80.3%in terms of RMS compared to two commonly used models(T0and Tvmodels)that require in situ meteorological observations,respectively.Additional validation with radiosonde data shows an average Bias and RMS of 1.85 h Pa and 4.87 h Pa,corresponding to the improvement of 42.8%and 71.1%in RMS compared with T0and Tv models,respectively.These accuracies are sufficient for calculating ZHD to an accuracy of 1 mm by performing atmospheric pressure vertical correction.The new model can correct atmospheric pressure from meteorological stations or numerical weather forecasts to different heights of the troposphere.展开更多
目的探究快速康复外科(enhanced recovery after surgery,ERAS)理念下麻醉苏醒期护理对老年髋关节置换术患者认知功能的影响。方法选取2021年1月-2023年12月我院收治的老年髋关节置换术患者92例,通过随机数字法将其分为对照组和观察组,...目的探究快速康复外科(enhanced recovery after surgery,ERAS)理念下麻醉苏醒期护理对老年髋关节置换术患者认知功能的影响。方法选取2021年1月-2023年12月我院收治的老年髋关节置换术患者92例,通过随机数字法将其分为对照组和观察组,每组各46例。对照组实施常规护理,观察组实施ERAS理念下麻醉苏醒期护理。对比两组认知功能、恢复指征、并发症。结果干预前,两组认知功能评分对比无显著性差异(P>0.05);干预后,观察组认知功能评分高于对照组,具有显著性差异(P<0.05)。观察组在拔管时间、开始下床活动的时间、住院时长以及住院费用方面均低于对照组,具有显著性差异(P<0.05)。两组术后谵妄、认知功能障碍等发生率对比,观察组更低,具有显著性差异(P<0.05)。结论将ERAS理念应用于麻醉苏醒期患者护理中,能改善老年髋关节置换术患者的认知及功能,促进患者恢复,从而降低术后认知功能障碍、谵妄等并发症的发生率。展开更多
分析加速康复外科(enhanced recovery after surgery,ERAS)理念在盆底功能重建术中的应用效果。纳入2023年8月—2024年8月于广州医科大学附属妇女儿童医疗中心接受盆底功能重建术修复治疗的患者共80例,依据随机数字表法将其分为观察组(E...分析加速康复外科(enhanced recovery after surgery,ERAS)理念在盆底功能重建术中的应用效果。纳入2023年8月—2024年8月于广州医科大学附属妇女儿童医疗中心接受盆底功能重建术修复治疗的患者共80例,依据随机数字表法将其分为观察组(ERAS理念围手术期管理)与对照组(常规围手术期管理),每组各40例,对两组患者最终盆底肌功能的恢复情况进行评估。结果显示,观察组术后恢复速度快于对照组,住院时间短于对照组,并发症发生率低于对照组,术前主观舒适度优于对照组,盆底功能障碍评分低于对照组,生活质量评分高于对照组(P<0.05)。研究发现,ERAS理念在盆底功能重建术中的应用可加快患者的术后恢复速度,增强并发症的预防效能,改善症状缓解效果和提高患者的生活质量,在临床实践中具有推广应用价值。展开更多
基金supported by the National Natural Science Foundation of China(42304018)the National Natural Science Foundation of China(42330105,42064002,42074035)+3 种基金the Guangxi Natural Science Foundation of China(Guike AD23026177,2020GXNSFBA297145)the Foundation of Guilin University of Technology(GUTQDJJ6616032)Guangxi Key Laboratory of Spatial Information and Geomatics(21238-21-05)the Innovation Project of Guangxi Graduate Education(YCSW2023341)。
摘要The Zenith Hydrostatic Delay(ZHD)is essential for high-precision Global Navigation Satellite System(GNSS)and Very Long Baseline Interferometry(VLBI)data processing.Accurate estimation of ZHD relies on in situ atmospheric pressure,which is primarily variable in the vertical direction.Current atmospheric pressure is either site-specific or has limited spatial coverage,necessitating vertical corrections for broader applicability.This study introduces a model that uses a Gaussian function for the vertical correction of atmospheric pressure when in situ meteorological observations are unavailable.Validation with the fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis(ERA5)reveals an average Bias and RMS for the new model of 0.31 h Pa and 2.96 h Pa,respectively.This corresponds to improvements of 37.5%and 80.3%in terms of RMS compared to two commonly used models(T0and Tvmodels)that require in situ meteorological observations,respectively.Additional validation with radiosonde data shows an average Bias and RMS of 1.85 h Pa and 4.87 h Pa,corresponding to the improvement of 42.8%and 71.1%in RMS compared with T0and Tv models,respectively.These accuracies are sufficient for calculating ZHD to an accuracy of 1 mm by performing atmospheric pressure vertical correction.The new model can correct atmospheric pressure from meteorological stations or numerical weather forecasts to different heights of the troposphere.
摘要目的探究快速康复外科(enhanced recovery after surgery,ERAS)理念下麻醉苏醒期护理对老年髋关节置换术患者认知功能的影响。方法选取2021年1月-2023年12月我院收治的老年髋关节置换术患者92例,通过随机数字法将其分为对照组和观察组,每组各46例。对照组实施常规护理,观察组实施ERAS理念下麻醉苏醒期护理。对比两组认知功能、恢复指征、并发症。结果干预前,两组认知功能评分对比无显著性差异(P>0.05);干预后,观察组认知功能评分高于对照组,具有显著性差异(P<0.05)。观察组在拔管时间、开始下床活动的时间、住院时长以及住院费用方面均低于对照组,具有显著性差异(P<0.05)。两组术后谵妄、认知功能障碍等发生率对比,观察组更低,具有显著性差异(P<0.05)。结论将ERAS理念应用于麻醉苏醒期患者护理中,能改善老年髋关节置换术患者的认知及功能,促进患者恢复,从而降低术后认知功能障碍、谵妄等并发症的发生率。
摘要分析加速康复外科(enhanced recovery after surgery,ERAS)理念在盆底功能重建术中的应用效果。纳入2023年8月—2024年8月于广州医科大学附属妇女儿童医疗中心接受盆底功能重建术修复治疗的患者共80例,依据随机数字表法将其分为观察组(ERAS理念围手术期管理)与对照组(常规围手术期管理),每组各40例,对两组患者最终盆底肌功能的恢复情况进行评估。结果显示,观察组术后恢复速度快于对照组,住院时间短于对照组,并发症发生率低于对照组,术前主观舒适度优于对照组,盆底功能障碍评分低于对照组,生活质量评分高于对照组(P<0.05)。研究发现,ERAS理念在盆底功能重建术中的应用可加快患者的术后恢复速度,增强并发症的预防效能,改善症状缓解效果和提高患者的生活质量,在临床实践中具有推广应用价值。
摘要目的 探究基于加速康复外科(ERAS)理念的静脉血栓栓塞症(VTE)预防方案在肝癌手术患者围手术期的应用效果。方法 选取2020年6月至2021年12月146例原发性肝癌行择期手术的住院患者作为观察对象,按区组随机化法分为观察组和对照组,每组73例。观察组采用围手术期VTE预防方案进行干预,对照组采用传统围手术期管理方案进行干预。比较两组患者术后排便时间、通气时间、住院时间、住院费用、再入院率情况差异;比较两组术后第1、3天患者疼痛和睡眠质量情况;比较两组术后第3天凝血功能[血浆纤维蛋白原(FIB)、D-二聚体(D-D)、血浆抗凝血酶原Ⅲ(AT-Ⅲ)]水平差异;比较两组术后1个月内VTE发生风险。结果 观察组患者术后排便时间[(73.48±13.39)h vs (98.27±15.04)h]、通气时间[(51.68±10.27) vs (62.72±13.81)h]、住院时间[(9.21±1.20)d vs (11.42±1.25)d]、住院费用[(3.09±0.33)万元vs (3.79±0.42)万元]均明显低于对照组(均P0.05)。观察组术后第3天NRS评分[(2.32±0.52)分vs (2.74±0.58)分]和PSQI评分[(0.67±0.32)分vs (0.89±0.34)分]均明显低于对照组(均P<0.05),AT-Ⅲ水平明显高于对照组[(85.49±12.32)%vs(81.38±11.65)%,P<0.05];术后观察组VTE中危及以上发生风险低于对照组(50.68%vs 67.12%,P<0.05)。结论 基于ERAS理念的VTE预防方案能够加快肝癌患者术后康复,降低VTE发生风险,减轻患者经济负担。