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健康足月新生儿脑白质MR扩散张量成像与神经发育结果的相关性

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国际医学放射学杂志 2019年第5期 611-611页

作者： K.y.Feng A.c.Rowell A.Andres B.J.Bellando X.y.Lou c.M.Glasier 赵思修 Arkansas children's Research Institute

摘要目前已知婴儿出生时可见的脑白质损伤会造成其日后的神经发育不良。健康新生儿的白质发育变化是否会影响其日后的神经发育还有待商榷。目的探讨健康足月新生

关键词：扩散张量成像发育变化神经发育 MR

SySTEMIc SALMONELLA INFEcTIONS IN MAN A cLINIcAL STUDy

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中华医学杂志(英文版) 1949年第2期67卷 68-68页

作者： c. S. cHIH y. B. cHIEN chungking central Hospital Chungking

Effects of Terracing and Agroforestry on Soil and Water Loss in Hilly Areas of the Sichuan Basin, china

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journal of Mountain Science 2008年第3期5卷 241-248页

作者： J.H. ZHANG Z.A. SU G.c. LIU Key Laboratory of Mountain Hazards and Earth Surface Processes Chinese Academy of Sciences 610041 China Institute of Mountain Hazards and Environment Chinese Academy of Sciences ＆Ministry of Water Conservancy Chengdu 610041 China The Graduate School of the chinese Academy of Sciences Beijing 100049 China

Soil erosion in hilly areas of the Sichuan Basin is a serious concern over sustainable crop production and sound ecosystem. A 3-year experiment was conducted using the method of runoff plots to examine the effects of terracing and agroforestry in farmland systems on soil and water conservation of slope fields in the hilly areas in Jianyang county, Sichuan Province, Southwestern china. A power function (y = aXb) can statistically describe the relationship between water runoff (y) and rainfall (X). The regression equation for the treatment of sloping terraces with crops (Plot 2) is remarkably different from that for the treatment of sloping terraces with grasses and trees (Plot 1) and the conventional up- and down-slope crop system (Plot 3) regarding equation coefficients, while regression equations are similar between Plot 1 and Plot 3. Water runoff amount and runoff coefficient of slope fields increased by 21.5～41.0 % and 27.5～69.7 % respectively, compared to those of sloping terraces, suggesting that terracing notably reduced the water runoff in the field. In the case of sloping terraces, lower amount of water runoff was observed on sloping terraces with crops than on sloping terraces with grasses and trees. Sediment yields on the slope fields in the normal year of rainfall distribution were notably higher (34.41～331.67 % and 37.06～403.44 % for Plot 1 and Plot 2, respectively) than those on sloping terraces, implying that terracing also plays a significant role in the reduction in soil erosion. It is suggested that terracing with crops is significantly effective for soil and water conservation in cultivatedfarmland, while the conventional practice of up- and down- slope cultivation creates high rates of water runoff and soil sediment transport. Terracing with grasses and fruit trees shows a less reduction in water runoff than terracing with crops, which was observed in the 3-year experiments.

关键词：林粮间作土砂流送径流坡式梯田水土流失

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大鼠脊髓损伤动物模型的建立

中国组织工程研究与临床康复 2007年第21期11卷 4144-4146页

作者：金宇管力郭世绂承德医学院附属医院骨外科二病区河北省承德市067000 承德医学院公体部河北省承德市067000 天津医科大学总医院骨科天津市300000

目的:建立一个稳定、损伤程度适中的脊髓损伤大鼠模型的技术及方法学特征。方法:实验于2004-09/2005-01在承德医学院临床技能实验室完成。选取30只Wistar大鼠,体质量230～260g,纵行切开大鼠背部皮肤及皮下组织,剥离棘突旁肌肉,切除T7棘... 详细信息

目的:建立一个稳定、损伤程度适中的脊髓损伤大鼠模型的技术及方法学特征。方法:实验于2004-09/2005-01在承德医学院临床技能实验室完成。选取30只Wistar大鼠,体质量230～260g,纵行切开大鼠背部皮肤及皮下组织,剥离棘突旁肌肉,切除T7棘突及椎板,暴露脊髓硬膜。根据打击物(重10g)调节高度的不同将30只大鼠分为3mm高度组、5mm高度组、8mm高度组,每组10只。高度使重物自然下落,打击T7段脊髓,迅速移开打击重物及打击头,逐层缝合伤口,喂养8周后行病理学检查。选取通过脊髓最大径的切片在低倍镜下进行显微摄影,照片上侧量并计算空洞或瘢痕的最大直径与同水平脊髓直径的比例。结果:纳入大鼠30只,死亡5只,存活率83.3%;其中3mm高度组死亡1只,5mm高度组死亡1只,8mm高度组死亡3只。3mm高度组3例标本镜下可见损伤段脊髓中有不规则的空腔,6例标本于脊髓内形成不规则瘢痕,损伤部位瘢痕最大直径与同水平脊髓直径比例为(10.0±5.2)%;5mm高度组9例镜下均可见损伤段脊髓中有一个长圆形或不规则的空腔,损伤部位瘢痕最大直径与同水平脊髓直径比例为(46.0±3.8)%;8mm高度组存活的7例镜下均可见损伤段脊髓全部中断,形成瘢痕与硬膜外组织分界不清。结论:5mm高度组存活的大鼠的脊髓均产生位于脊髓中央部或近中央部的空洞,损伤的位置和程度较恒定,是较为理想的损伤模型。

关键词：脊髓损伤,动物模型移植

A STUDy OF THE ASPIRATED STERNAL MARROW OF TWENTy-SIX HEALTHy cHINESE

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中华医学杂志(英文版) 1942年第5期61卷 254-254页

作者： H. c. PAI T. y. cHENG Departments of Pathology and Medicine Peiping Union Medical College Peking China

Vasculogenic mimicry-potential target for glioblastoma therapy: an in vitro and in vivo study

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中国神经肿瘤杂志 2013年第3期11卷 212-212页

作者： chen y Jing Z Luo c Zhuang M Xia J chen Z Wang y Department of Neurosurgery The First Affiliated HospitalChina Medical University

Glioblastoma is one of the most angiogenic human tumors and characterized by microvascular proliferations.A better understanding of glioblastoma vasculature is needed to optimize anti-angiogenic therapy that has shown a promising but incomplete *** present study examined 48 glioblastomas by cD34 endothelial marker periodic acid-Schiff(PAS)dual staining and found non-endothelial cell-lined

关键词：抗血管生成胶质细胞母细胞治疗体内体外肿瘤细胞内皮细胞

Iatrogenic Bile Duct Injuries after cholecystectomy, Is the Laparoscopic Approach a Good Idea?

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Surgical Science 2022年第7期13卷 343-351页

作者： Renam Tinoco Augusto Tinoco Matheus P. S. Netto Luciana J. El-Kadre Júlia M. L. c. Rocha Department of Surgery S&#227o José do Ava&#237 Hospital Rio de Janeiro Brazil

Objective: The treatment of iatrogenic bile duct injuries is still a challenge for hepatobiliary and general surgeons. Roux-en-y hepaticojejunostomy, one of the most appropriate techniques for the treatment of circumferential lesions, either occurring less than 2 cm from the bifurcation or in the bifurcation of the common hepatic duct, requires experience in advanced laparoscopy and hepatobiliary surgery. This study aims to present the results of laparoscopic hepaticojejunostomy (LHJ) for the treatment of iatrogenic bile duct injuries (IBDI). Methods: A retrospective study analyzing the medical records of patients diagnosed with IBDI and treated using LHJ of patients at the Hospital S?o josé do Avaí (HSJA). Sex, age, previous cholecystectomy technique, signs and symptoms, postoperative complications, length of stay, injury classification, and time elapsed from injury to diagnosis were analyzed. Magnetic resonance cholangiography (MRc), endoscopic retrograde cholangiopancreatography (ERcP) or intraoperative cholangiography. Results: From March 2006 to December 2018, six patients underwent LHJ. In five cases (83.33%), the primary operation was a laparoscopic cholecystectomy (Lc) and in one patient (13.66%) open cholecystectomy. The most frequent clinical sign was jaundice. The mean surgical time was 153.2 minutes (range: 115 to 206 minutes), and the hospital stay was 3 to 7 days (mean: 4.16 days). One patient had infection of the umbilical trocar incision and one patient presented with stenosis of the hepaticojejunal anastomosis and was treated with radioscopic pneumatic dilatation. conclusion: LHJ for circumferential and total IBDI either diagnosed early (during surgery) or late, may be a safe and effective option, with similar results to the conventional technique, a low complication rate and all the known advantages of minimally invasive surgery.

关键词： cholecystectomy Bile Duct Injury Iatrogenic Bile Duct Injury Laparoscopic Hepaticojejunostomy

影响矩作为测度单篇论著影响力的评价指标探讨

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大学图书馆学报 2014年第5期32卷 12-18页

作者：王术叶鹰南京大学信息管理学院南京210093

把评价视向由针对学术主体转向针对学术客体,提出着眼于单篇论著影响力评价的影响矩指标。影响矩M被定义为单篇论著影响学者力A及其影响跨度D的乘积,M越大,影响越大。通过对测算样本集和校验样本集的数据分析,显示影响矩M与总被引c及h... 详细信息

把评价视向由针对学术主体转向针对学术客体,提出着眼于单篇论著影响力评价的影响矩指标。影响矩M被定义为单篇论著影响学者力A及其影响跨度D的乘积,M越大,影响越大。通过对测算样本集和校验样本集的数据分析,显示影响矩M与总被引c及h指数的相关系数都在0.6以上,表明影响矩可以作为测评单篇论著影响力的独立指标。

关键词：影响矩影响学者力论文影响力单篇论著评价学术评价指标

1998—2017年《中国图书馆学报》论文的计量研究与品质分析

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中国图书馆学报 2018年第5期44卷 34-46页

作者：张慧叶鹰南京大学信息管理学院

以cNKI数据库的量化数据和《〈中国图书馆学报〉创刊六十周年文选》的质性选编为基础,定义出《中国图书馆学报》(1998—2017)所有论文、《文选》论文和双高论文,采用引用量c、下载量U和引用下载比K三个计量指标,对所有论文和《文选》论... 详细信息

以cNKI数据库的量化数据和《〈中国图书馆学报〉创刊六十周年文选》的质性选编为基础,定义出《中国图书馆学报》(1998—2017)所有论文、《文选》论文和双高论文,采用引用量c、下载量U和引用下载比K三个计量指标,对所有论文和《文选》论文进行计量研究,并对《文选》论文和双高论文进行品质分析。研究发现:c、U和K均服从幂律分布,且论文年均引用下载比逐年递减;分段时间内论文引用和下载之间具有高度正相关关系。由于学术品质不能完全用量化指标代替,建议以提升学术品质作为最终目标,而计量研究的目的则是促进学术品质提升。

关键词：文献计量定量研究质性分析中国图书馆学报