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Scene-trait coping style of military rescuers in Wenchuan earthquake
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作者 li-yi ZHANG Xin-yang SUN +7 位作者 ling-ming KONG De-hua TU liang ZHANG guang-yao li Zi-xiang SONG Chun-xia CHEN Gao-feng YAO Jie SHI 《中国应用生理学杂志》 CAS CSCD 2014年第6期538-543,共6页
Objective This study aimed to explore the scene-trait coping style of military rescuers in Wenchuan earthquake in an effort to provide scientific evidences for mental intervention program for Chinese military personne... Objective This study aimed to explore the scene-trait coping style of military rescuers in Wenchuan earthquake in an effort to provide scientific evidences for mental intervention program for Chinese military personnel.Methods By cluster sampling,a total of 151 military rescuers and 331 control servicemen were administered the military personnel scene-trait coping style scale(MPSTCSS).Results All active coping factor scores,and passive coping factor scores of affection,health and economy in the rescuer group were significantly higher than those in control group(P<0.05).The 21-above age subgroup,the3-year plus service subgroup,and the officer subgroup had significantly higher active coping factor scores on military tasks,military experience and personal development than those of the 21-below age subgroup,3-year minus service subgroup and the soldier subgroup,respectively(P<0.05 or P<0.01).Conclusion The earthquake relief servicemen can cope with stressful situations better than control group by taking active coping style.The officers,servicemen older than 21 years,and servicemen with more service duration than3 years could usually take active coping style. 展开更多
关键词 军事任务 地震救援 场景 汶川 风格 因子得分 整群抽样 救援人员
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孔隙特征对土体内部流动特性的影响——孔隙尺度的数值研究(英文) 被引量:3
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作者 guang-yao li Sheng DAI +1 位作者 liang-tong ZHAN Yun-min CHEN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2019年第12期961-978,共18页
目的:研究土体内部的流动现象对岩土、农业及地质工程等领域具有重要意义。本文旨在探讨孔隙的平均直径、直径标准差、配位数及各向异性对土体内部水压、流量分布、流动模式及关键流动路径的影响,为评估土质屏障中的优势流动行为提供依... 目的:研究土体内部的流动现象对岩土、农业及地质工程等领域具有重要意义。本文旨在探讨孔隙的平均直径、直径标准差、配位数及各向异性对土体内部水压、流量分布、流动模式及关键流动路径的影响,为评估土质屏障中的优势流动行为提供依据。创新点:1.在孔隙尺度分析孔隙特征对土体宏观渗透率及内部流动规律的影响;2.评估多个孔隙特征参数(如孔隙的平均直径、直径标准差、配位数及三种孔隙直径分布形式)对土体内部优势流动行为的影响。方法:1.将土体孔隙空间简化为由孔隙与吼道互相连接构成的球-杆模型,并通过改变孔隙和吼道的特征参数来描述复杂的孔隙结构;2.利用孔隙网络模型得到单元体内部水压和流量分布情况,为计算土体固有渗透率和评估其流动特性提供基础数据;3.基于击穿路径的概念,分析不同孔隙特征下土体内部流动的迂曲和非均匀程度;4.通过引入吼道收缩系数,调整水平或竖直吼道直径大小,评估孔隙各向异性对流动规律的影响。结论:1.土体的孔隙率和固有渗透率均随着孔隙直径平均值的增大、标准差的减小及配位数的增大而增大。2.孔隙直径的变异系数(COV)越高,土体内部水压和流量的分布越不均匀;配位数的提高会削弱水压的局部化分布但会提高流量的不均匀程度。3.随着COV的提高,击穿路径变得更加曲折;当COV由0增加到1.0时,击穿路径的迂曲度由1.00增加到大约1.71,击穿路径承担的流量占总流量的比值由2.0%提高到7.8%。4.水平与竖直吼道直径比值的提高,也会导致击穿路径迂曲度的提高;水平与竖直固有渗透率的比值和水平与竖直吼道直径的比值呈双对数线性相关。 展开更多
关键词 孔隙网络模型 固有渗透率 流动特性 孔隙特征
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Predictive factors for successful sperm retrieval by microdissection testicular sperm extraction in men with nonobstructive azoospermia and a history of cryptorchidism 被引量:2
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作者 Xing-lin Chen Yu-Ang Wei +6 位作者 Xiao-Han Ren Xu Zhang guang-yao li Zhong-Wen Lu Dong Zhang Chao Qin Shi-Feng Su 《Asian Journal of Andrology》 SCIE CAS CSCD 2022年第5期503-508,共6页
This study aims to explore the factors influencing the success rate of the microdissection testicular sperm extraction(Micro-TESE)in patients with nonobstructive azoospermia(NOA)and cryptorchidism.Clinical data of 162... This study aims to explore the factors influencing the success rate of the microdissection testicular sperm extraction(Micro-TESE)in patients with nonobstructive azoospermia(NOA)and cryptorchidism.Clinical data of 162 patients with cryptorchidism who underwent Micro-TESE due to infertility from December 2015 to May 2020 in the First Affiliated Hospital of Nanjing Medical University were analyzed retrospectively.In the univariate analysis,significant differences in the age of patient at the time of orchidopexy(median[interquartile range,IQR]:7.0[4.0–11.0]years vs 11.5[9.0–14.5]years,P<0.001),interval between orchidopexy and Micro-TESE(mean±standard deviation:17.5±5.0 years vs 14.4±4.4 years,P<0.001),severity of cryptorchidism(unilateral[62.8%]vs bilateral[31.6%],P<0.001;location of cryptorchidism,intra-abdominal[27.3%]vs inguinal[44.8%]vs suprascrotal[66.7%],P<0.001),volume of the dominant testis(median[IQR]:17.00[15.00–19.00]ml vs 14.50[11.75–16.25]ml,P<0.001),and levels of follicle-stimulating hormone(FSH;P=0.004)and testosterone(P=0.006)were observed between the successful and failed sperm extraction groups.After conducting the multivariate analysis,four of these factors,including unilateral/bilateral cryptorchidism(P<0.001),location of cryptorchidism(P=0.032),age of orchidopexy(P<0.001),and dominant testicular volume,were adopted in the clinical prediction model to evaluate preoperatively the success rate of Micro-TESE for patients with NOA and cryptorchidism.The likelihood of successful sperm retrieval by Micro-TESE in men with NOA and cryptorchidism increased in patients with mild forms of cryptorchidism. 展开更多
关键词 AZOOSPERMIA CRYPTORCHIDISM microdissection testicular sperm extraction PREDICTIVE
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A machine learning model for colorectal liver metastasis post-hepatectomy prognostications: several strategies for the model evaluation
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作者 guang-yao li Lu-Lu Zhai 《Hepatobiliary Surgery and Nutrition》 SCIE 2024年第4期752-754,共3页
With great interest,we read the article by Lam et al.(1)entitled“A machine learning model for colorectal liver metastasis post-hepatectomy prognostications”.In this study,the authors included colorectal liver metast... With great interest,we read the article by Lam et al.(1)entitled“A machine learning model for colorectal liver metastasis post-hepatectomy prognostications”.In this study,the authors included colorectal liver metastasis(CRLM)patients from four hospitals in Hong Kong who underwent hepatic resection,and developed a survival prediction model based on the patients’demographic,oncologic,clinicopathologic,and therapeutic characteristics using machine learning.Through Cox proportional hazards and least absolute shrinkage and selection operator(LASSO)regression analyses,the authors successfully developed a predictive model consisting of eight predictors that could accurately predict overall survival(OS)and recurrence-free survival(RFS)after hepatectomy in patients with CRLM.This is an intriguing study with significant clinical value,and the authors deserve to be commended for their efforts.However,there are still several issues that need to be addressed in this study. 展开更多
关键词 Colorectal liver metastasis(CRLM) hepatectomy survival prediction model
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