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什么是定题信息服务(SDI)?

已有 1506 次阅读 2015-11-9 09:27 |个人分类:信息检索|系统分类:观点评述

 

       定题信息服务,又称SDI服务,即Selective Dissemination of Information Service。它是一种根据读者需求,一次性或定期不断地将符合需求的最新信息传送给读者的服务模式。又指信息机构根据用户需求,通过对信息的收集、筛选、整理并定期或不定期地提供给用户,直至协助课题完成的一种连续性的服务。它是情报检索的引伸,是一种特殊形式的检索服务。

基本特点在于主动性、针对性、有效性、连续性、专深性。

       定题服务是图书馆传统的信息服务之一,它针对用户的科研、教学需要,定期或不定期对某一特定主题进行跟踪检索,把经过筛选的最新检索结果以书目、索引、文摘、全文、汇编等方式提供给用户。

 

信息机构给用户推送的信息服务

医学动态 医科院信息所提供2015.11.04

1. 烟酰胺可降低非黑色素瘤皮肤癌风险

中文:http://www.baikemy.com/news/1/22901833100801

原文:www.ncbi.nlm.nih.gov/pubmed/?term=A+Phase+3+Randomized+Trial+of+Nicotinamide+for+Skin-Cancer+Chemoprevention

2. 利用紧急转诊可延长肿瘤患者生存期

中文:http://www.baikemy.com/news/1/22901784691457

原文:www.ncbi.nlm.nih.gov/pubmed/?term=Use+of+the+English+urgent+referral+pathway+for+suspected+cancer+and+mortality+in+patients+with+

3.致死性前列腺癌细胞或具有干细胞样特性

中文:http://www.baikemy.com/news/1/22901709078785

原文:www.ncbi.nlm.nih.gov/pubmed/?term=A+basal+stem+cell+signature+identifies+aggressive+prostate+cancer+phenotypes

4.粪便中微生物可预测大肠肿瘤类型

中文:http://www.baikemy.com/news/1/22901647890433

原文:www.medscape.com/viewarticle/852544?nlid=89046_3681&src=wnl_edit_dail&uac=227596HZ&impID=857457&faf=1

 

5. 染色体混乱可引起罕见白血病

中文:http://www.baikemy.com/news/1/22901576545281

原文:www.ncbi.nlm.nih.gov/pubmed/?term=Genomic+analyses+reveal+recurrent+mutations+in+epigenetic+modifiers+and+the+JAK–STAT+pathway+in+Sézary+syndrome

6. 变节蛋白或可调节乳腺癌细胞对药物的敏感性

中文:http://www.baikemy.com/news/1/22901520098305

原文:www.ncbi.nlm.nih.gov/pubmed/?term=An+Epigenetic+Pathway+Regulates+Sensitivity+of+Breast+Cancer+Cells+to+HER2+Inhibition+via+FOXO%2Fc-Myc+Axis

7. 牛机体的病毒可引发人类乳腺癌

中文:http://www.baikemy.com/news/1/22901457207297

原文:www.ncbi.nlm.nih.gov/pubmed/?term=Exposure+to+Bovine+Leukemia+Virus+Is+Associated+with+Breast+Cancer%3A+A+Case-Control+Study

8.人造抗氧化剂加速小鼠皮肤癌转移

中文:http://www.baikemy.com/news/1/22901391401473

原文:www.ncbi.nlm.nih.gov/pubmed/26446958

9. 前列腺癌药物或可用于治疗白血病

中文:http://www.baikemy.com/news/1/22901329003009

原文:www.ncbi.nlm.nih.gov/pubmed/?term=YK-4-279+effectively+antagonizes+EWS-FLI1+induced+leukemia+in+a+transgenic+mouse+model

10.表观遗传重编程是前列腺癌的关键因素

中文:http://www.baikemy.com/news/1/22901205552129

原文:www.ncbi.nlm.nih.gov/pubmed/?term=The+androgen+receptor+cistrome+is+extensively+reprogrammed+in+human+prostate+tumorigenesis

 

用户定制的信息专题服务

Diabetes 糖尿病

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Diabetes
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