浅谈百度中文搜索引擎的应用

专职医学情报查新检索人员在浩瀚无序的因特网上获取有价值的专业信息过程中 ,感到百度中文搜索引擎是较好的检索工具。百度公司是中国互联网的软件技术提供商和平台运营商 ,百度搜索引擎是第一个为中国人创建的商业化中文搜索引擎 (以下简称百度 )。现就其应用谈一点体会。1　查全率和查准率较高百度利用其独特的中文语言处理技术 ,较好地解决了字和词的关系。也就是说 ,百度检索词的使用既可以是专业术语 ,也可以是通俗用法 ,即使是中外文检索词混用 ,只要符合百度搜索引擎的语法 (与绝大部分搜索引擎语法相似 )关系 ,都可以获得较满意的…     

信息时代的医学文献检索工作

<正> 近年来,随着信息技术的飞速发展,文献数据库的开发与应用、因特网日益普及,医学文献检索的方式、方法也发生了很大的改变,而主观因素对检索工具的使用频率和检索结果的影响也加大了,对读者和馆员素质的要求更高了。我馆自1995年开始进行计算机文献检索至今,已引进中外文题录、摘要等光盘数据库数个、全文数据库两个及宽带网等,为     

医学外文期刊全文指引库的构建及应用

阐述建立医学外文期刊全文指引数据库的目的、数据来源、设计方案以及在全文检索中如何应用,为外文期刊全文文献检索提供便利.     

针灸影响心率变异性研究的计量学分析

目的:采用文献计量学方法对心率变异性在针灸研究领域中应用的现代文献内容进行分析,以总结其规律,指导临床和科研.方法:制定文献纳入标准、排除标准以及文献检索策略,检索时间为1980-2010年,检索中国期刊全文数据库等电子数据库,获得相关文献全文；并对这些文献的研究对象、研究疾病、测量时间等进行计量学研究.结果:有25篇...     

对易漏检细胞因子的检索

利用国内外的医学权威数据库，将医学文献检索中易漏检细胞因子的一些问题，通过检索实例进行比较，探讨如何提高查全率和查准率，以让更多的科研人员掌握其检索技巧，更好地为科研服务。     

因特网上PubMed的检索策略和调整

目的：旨在开发和利用医学资源，探讨PubMed的不同途径的检索效果及其影响。方法：举例介绍查询自动映射、匹配、转换的方法，以提高文献查全率。利用Limits、PrevPiew、Details等辅助检索按钮，及时修正检索式，增加检索词，调整检索选用副主题词组配、主要主题词检索、限定扩展检索等手段，提高文献的查准率。结果：在MeSH词和文本词以及作者和刊名检索中，充分发挥其强大的查询功能。结论：能够真正地让医学工作者在较短的时间里，掌握网上医学文献检索。     

《北京中医药大学学报》被引分析

中国生物医学文献数据库(CBMDisc) 是中国医学科学院医学信息研究所开发研制的综合性医学文献数据库.该数据库收录了国内900多种医学及医学相关期刊,以及汇编、会议论文的文献题录, 它是检索国内医学文献的一种最重要的检索工具.2001年该数据库在原有的检索功能上, 增加了引文检索功能.本文依据CBMDisc数据库, 采用文献计量学方法统计1998～2000年<北京中医药大学学报>被CBMDisc数据库来源期刊引用情况, 目的在于从文献引证的角度反映该刊的学术水平和期刊质量.     

CBMdisc检索词的选择及使用

检索词的选择和使用直接影响文献检索的查全率和查准率。结合作者的文献检索实践，以中国生物医学文献光盘数据库(CBMdisc)的检索为例，探讨关键词、主题词、副主题词、特征词的选择和使用，具有较强的实际指导意义。     

浅淡医学文献检索与利用课常用英语词汇及缩略语

随着信息时代的到来,医学文献检索与利用课已做为一门提高学生综合素质、培养学生科学地获取情报的重要课程."医学文献检索与利用"课程所学英文医学专业检索工具较多,在讲授手工英文检索工具、光盘数据库及因特网检索前,对一些常用的检索课专用术语及课程涉及到的一些文献类型词汇、相关词汇进行简明、精确的讲解及辨义,会利用很短的时间,达到事半功倍的效果.本文对一些文检课所特有的及在医学文献检索课中常用词汇的含义进行释义,对医学生及临床医生利用文献、阅读参考文献提供便利.     

我国MEDLARS中心医学文献数据库已提供文献检索服务

中国MEDLARS中心已在医科院情报所建成,现正式向国内用户提供文献检索服务。 MEDLARS,即医学文献分析与检索系统,是当今世界上三大情报检索系统之一,拥有29个可供检索的数据库。该系统具有反应速度快、复盖面广、检索入口多、检索功能强等特点,可以达到比较满意的查全率、查准率以及用户的打印要求。我所目前已装载MEDLINE,SDILINE和MESH三个数据库。 MEDLINE,即MEDLARS On Line,含有自1984年以来的、选自70多个国家近三千二百种期刊的70余万篇文献的题录,复盖了临床医学、预防医学、护理学、口腔医     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.