Results 201 to 210 of about 39,766 (300)

实验矿物物理的发展现状与趋势:1.相变和状态方程、电导率、热导率

open access: gold, 2022
Baohua Zhang   +7 more
openalex   +1 more source

T1ρ-MRI 技术评价腰椎不同内固定方式对相邻节段椎间盘退变的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2014
【目的】 应用T1ρ-MRI技术定量评价后路腰椎椎间融合固定术(PLIF)与棘突间动态固定术(wallis)对相邻节段椎间盘退变的影响,并分析退变的相关因素。【方法】 通过前瞻性研究方法,选取L4/5退变性失稳患者42例,按随机数字法将患者随机分为PLIF组和Wallis组,分别为22例和20例。通过T1ρ-MRI技术以及拍摄X线片,测量固定节段上位相邻节段椎间盘髓核T1ρ值、椎间盘高度、椎间隙动态角度变化,并通过JOA评分及腰功能障碍指数(ODI)评价临床效果。终末评估时间设为术后24个月。【结果 ...
doaj  

[Associations of metabolic dysfunction-associated steatotic liver disease and cardiometabolic risk factor abnormalities with adverse pregnancy outcomes]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Yang S   +9 more
europepmc   +1 more source

黄土高原长武县域植被变化季相趋势及影响因素 [PDF]

open access: bronze, 2016
温晓金   +7 more
openalex   +1 more source

基于变分模态分解的相位敏感光时域反射计信噪比提升方法

open access: bronze, 2023
高浩天 Gao Haotian   +3 more
openalex   +2 more sources

紫花地丁两型花相互转变过程中花部形态结构的变化式样研究 [PDF]

open access: bronze, 2017
李巧峡   +9 more
openalex   +1 more source

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