2010−2012年最引用ソーシャルメディアつぶやき順位：福島原発事故の関連が１位、２位 ・・・・科学文献重要性との乖離

他は、Googleの検索技術について、日本の女子高生の実験、ニキビやペニスの損傷、運動不足と寿命と、その道の専門家とは、その注目点が随分異なるのは当たりまえすぎる話。

Peer-review science is taking off on Twitter, but who is tweeting what and why?

http://www.eurekalert.org/pub_releases/2013-12/uom-psi120613.php

元論文：Tweeting biomedicine: an analysis of tweets and citations in the biomedical literature ; Journal of the Association for Information Science and Technology (JASIST) http://arxiv.org/pdf/1308.1838.pdf

PubMedとWoS(2010−2012年出版）140万の文書を解析
Twitterで言及されたのは、PubMed記事の10％未満で、一般にはその引用少ない。
Twitterでのtweetと、ジャーナル・専門家レベルの引用との相関性は低く、tweeting行為はジャーナル、専門分野間においてばらつきが大きい、引用ベースとかなりことなるインパクトとなっている。

The Twitter Top 15 Peer-Reviewed Studies

1. Hess et al. (2011). Gain of chromosome band 7q11 in papillary thyroid carcinomas of young patients is associated with exposure to low-dose irradiation Hess is affiliated with German Research Center for Environmental Health. 

2. Yasunari et al. (2011). Cesium-137 deposition and contamination of Japanese soils due to the Fukushima nuclear accident. Yasunari is affiliated with the Universities Space Research Association, Goddard Earth Sciences Technology and Research 

3. Sparrow et al. (2011). Google Effects on Memory: Cognitive Consequences of Having Information at Our Fingertips. Sparrow is is affiliated with Columbia University. 　→　解説：http://el.jibun.atmarkit.co.jp/onot/2011/07/

4. Onuma et al. (2011). Rebirth of a Dead Belousov–Zhabotinsky Oscillator. Onuma is affiliated with Mito Dai-ni Senior High School. 　→　解説：http://d.hatena.ne.jp/luckdragon2009/20111119/1321647049　日本の女子高生の実験

5. Silverberg (2012). Whey protein precipitating moderate to severe acne flares in 5 teenaged athletes. Silverberg is affiliated with St. Luke's-Roosevelt Hospital Center. 

6. Wen et al. (2011). Minimum amount of physical activity for reduced mortality and extended life expectancy: a prospective cohort study. Wen is affiliated with National Health Research Institutes (Taiwan). 

7. Kramer (2011). Penile Fracture Seems More Likely During Sex Under Stressful Situations. Kramer is affiliated with the University of Maryland School of Medicine 

8. Newman & Feldman (2011). Copyright and Open Access at the Bedside. Newman and Feldman are affiliated with the University of California San Francisco and University of California Hastings College of the Law, respectively 

9. Reaves et al. (2012). Absence of Detectable Arsenate in DNA from Arsenate-Grown GFAJ-1 Cells. Reaves is affiliated with Princeton University. 

10. Bravo et al. (2011). Ingestion of Lactobacillus strain regulates emotional behavior and central GABA receptor expression in a mouse via the vagus nerve. Bravo is affiliated with University College Cork. 

11. Park et al. (2012). Penetration of the Oral Mucosa by Parasite-Like Sperm Bags of Squid: A Case Report in a Korean Woman. Park is affiliated with the Kwandong University College of Medicine. 

12. Mottron (2011). Changing perceptions: The power of autism. Mottron is affiliated with Université de Montréal. 

13. Villeda et al. (2012). The ageing systemic milieu negatively regulates neurogenesis and cognitive function. Villeda is affiliated with Stanford University School of Medicine. 

14. Merchant et al. (2011). Integrating Social Media into Emergency-Preparedness Efforts. Merchant is affiliated with the University of Pennsylvania. 

15. Ho et al. (2011). A Low Carbohydrate, High Protein Diet Slows Tumor Growth and Prevents Cancer Initiation. Ho is affiliated with the BC Cancer Agency.

tweetされた文献あたりの平均tweet数（横）/twitterにおける文献比率

case Iとcase IIは、専門性を示すデータポイント平均以上・以下で区別
case IIIと case IVは、Twitter露出頻度の高低で区別

tweetされた論文の比率　 (here called “Twitter coverage”, P%tweeted、いわゆるTwitter露出度)と、tweet記事あたりのtweet数　 (called “Twitter citation rate”, T/Ptweeted：Tweet引用率)