新疆生产建设兵团第十三师天然草地资源现状及其利用探讨

新疆生产建设兵团第十三师位于在新疆东部哈密市,辖区有8个团场。十三师草场面积占兵团草场面积的15.7%,是兵团草场面积最大的师。十三师草原生态十分脆弱,主要以荒漠、半荒漠草场为主。除了部分与地方乡镇接壤草场以外,草场承包确权工作基本完成。由于超载放牧、基础设施落后、防灾减灾能力弱等原因,导致天然草场退化、沙化,有毒、有害植物增加,产草量和草质量明显下降,影响牧民收入。超载放牧是草场退化的根本原因,本文围绕这个主题,对草场面临的困难和难题进行分析,并提出了建设性的建议。通过异地搬迁、办理贷款及改善牧民生产生活等措施,减少天然草原载畜量,减轻夏草场放牧强度,逐步达到草畜平衡的目标,为十三师畜牧业可持续健康发展提供理论基础。     

《临证指南医案》痹证用药特点分析

目的探讨《临证指南医案》痹证用药特点。方法 运用数据挖掘技术统计药物使用频次、性味归经并进行关联规则、聚类、复杂网络分析等。结果 筛选出83首处方,共涉及中药125味，使用频次前5位依次为桂枝、茯苓、白术、当归、苦杏仁，功效类别以补虚药为主，性味以甘温最多，归经主要涉及肺、脾、肝、心、肾、胃；关联规则得到10对常见组合，高频中药聚为4类，复杂网络分析得到1个核心组合。结论 叶氏常从络病角度治痹，或通、或补、或通补皆施，重视肺脾，注重调和气血营卫，擅长通补奇经治法。     

持续质量改进措施在医院卫生管理中的应用

目的分析在新时期医院卫生管理工作中实施持续质量改进措施的效果。方法选取2017年1月—2018年1月期间本院60名医务人员作为对照组,给予常规卫生管理,选取2018年2月—2019年2月期间本院60名医务人员作为观察组,给予持续质量改进管理,对比两组管理效果。结果组间对比,观察组手卫生执行率、手卫生合格率、无菌操作规范率均高于对照组,且观察组卫生知识考核评分及护理满意度评分也高于对照组(P<0.05)。结论在新时期医院卫生管理中实施持续质量改进措施,更有利于提高医院卫生管理的整体水平,进而为医院的安全、健康、稳定运行提供保障。     

Exploratory Study of Apparent Diffusion Coefficient Histogram Metrics in Assessing Pancreatic Malignancy

PurposeTo evaluate whole-lesion 3D-histogram apparent diffusion coefficient (ADC) metrics for assessment of pancreatic malignancy.MethodsForty-two pancreatic malignancies (36 pancreatic adenocarcinoma [PDAC], 6 pancreatic neuroendocrine [PanNET]) underwent abdominal magnetic resonance imaging (MRI) with diffusion-weighted imaging before endoscopic ultrasound biopsy or surgical resection. Two radiologists independently placed 3D volumes of interest to derive whole-lesion histogram ADC metrics. Mann-Whitney tests and receiver operating characteristic analyses were used to assess metrics’ diagnostic performance for lesion histology, T-stage, N-stage, and grade.ResultsWhole-lesion ADC histogram metrics lower in PDACs than PanNETs for both readers (P ≤ .026) were mean ADC (area under the curve [AUC] = 0.787-0.792), mean of the bottom 10th percentile (mean_0-10) (AUC = 0.787-0.880), mean of the 10th-25th percentile (mean_10-25) (AUC = 0.884-0.917) and mean of the 25th-50th percentile (mean_25-50) (AUC = 0.829-0.829). For mean_10-25 (metric with highest AUC for identifying PDAC), for reader 1 a threshold > 0.94 × 10^?3 mm²/s achieved sensitivity 94% and specificity 83%, and for reader 2 a threshold > 0.82 achieved sensitivity 97% and specificity 67%. Metrics lower in nodal status ≥ N₁ than N₀ for both readers (P ≤ .043) were mean_0-10 (AUC = 0.789-0.822) and mean_10-25 (AUC = 0.800-0.822). For mean_10-25 (metric with highest AUC for identifying N₀), for reader 1 a threshold <1.17 achieved sensitivity 87% and specificity 67%, and for reader 2 a threshold <1.04 achieved sensitivity 87% and specificity 83%. No metric was associated with T-stage (P > .195) or grade (P > .215).ConclusionVolumetric ADC histogram metrics may serve as non-invasive biomarkers of pancreatic malignancy. Mean_10-25 outperformed standard mean for lesion histology and nodal status, supporting the role of histogram analysis.