近十年論文發表前20名國家地區最新排名出爐－冒牌自然老師

近十年論文發表前20名國家地區最新排名出爐
http://sciencewatch.com/dr/cou/2009/09decALL/

著名的湯森路透科技資訊集團近日更新了其ESI-SM（Essential Science Indicators SM）資料庫，根據各個國家和地區於1999年1月至2009年8月31日在湯森路透索引期刊上發表的論文，統計分析出前20名國家和地區排名。每個參與排名的國家和地區在這期間發表的論文數超過1萬篇，覆蓋所有領域。排名參照指標為總引用次數、文章數和單篇文章引用次數。其中，中國的總引用次數排名第 9，比上期排名前進一位，文章數列第5，和上期持平，而單篇文章引用次數仍未進前20。

Top 20 Countries in ALL FIELDS, 1999-August 31, 2009
Cogs For the eighth year, ScienceWatch.com presents its annual "Top 20" listings of the countries which, as of the latest bimonthly update of Essential Science IndicatorsSM, achieved particular distinction based on their papers published in Thomson Reuters-indexed journals from January 1999 through August 31, 2009, a 10-year plus 8-month period. The listings are confined to those nations, out of a pool of 148, which published at least 10,000 papers across all fields during the period. Countries are ranked by three separate measures: total citations, number of papers, and cites per paper. (Note: For articles with multiple authors representing different nations, each listed nation receives full, not fractional, citation credit for the given paper.)

Citations
Rank	Field	Papers	Citations	Citations Per Paper
1	USA	2,974,344	44,669,056	15.02
2	GERMANY	766,162	9,406,841	12.28
3	ENGLAND	682,018	9,399,334	13.78
4	JAPAN	788,650	7,602,742	9.64
5	FRANCE	548,046	6,304,141	11.50
6	CANADA	424,562	5,233,211	12.33
7	ITALY	403,588	4,417,871	10.95
8	NETHERLANDS	236,344	3,419,657	14.47
9	PEOPLES R CHINA	649,689	3,404,466	5.24
10	AUSTRALIA	276,622	3,067,686	11.09
11	SPAIN	305,430	2,942,425	9.63
12	SWITZERLAND	171,248	2,693,730	15.73
13	SWEDEN	174,789	2,407,364	13.77
14	BELGIUM	128,800	1,613,458	12.53
15	SCOTLAND	106,559	1,522,948	14.29
16	SOUTH KOREA	237,652	1,515,555	6.38
17	DENMARK	92,734	1,369,297	14.77
18	INDIA	253,520	1,288,075	5.08
19	ISRAEL	109,410	1,287,435	11.77
20	RUSSIA	273,189	1,199,538	4.39
SOURCE: Essential Science Indicators from Thomson Reuters.

Papers
Rank	Field	Papers	Citations	Citations Per Paper
1	USA	2,974,344	44,669,056	15.02
2	JAPAN	788,650	7,602,742	9.64
3	GERMANY	766,162	9,406,841	12.28
4	ENGLAND	682,018	9,399,334	13.78
5	PEOPLES R CHINA	649,689	3,404,466	5.24
6	FRANCE	548,046	6,304,141	11.50
7	CANADA	424,562	5,233,211	12.33
8	ITALY	403,588	4,417,871	10.95
9	SPAIN	305,430	2,942,425	9.63
10	AUSTRALIA	276,622	3,067,686	11.09
11	RUSSIA	273,189	1,199,538	4.39
12	INDIA	253,520	1,288,075	5.08
13	SOUTH KOREA	237,652	1,515,555	6.38
14	NETHERLANDS	236,344	3,419,657	14.47
15	BRAZIL	175,063	1,039,235	5.94
16	SWEDEN	174,789	2,407,364	13.77
17	SWITZERLAND	171,248	2,693,730	15.73
18	TAIWAN	154,634	974,818	6.30
19	POLAND	138,705	864,073	6.23
20	BELGIUM	128,800	1,613,458	12.53
SOURCE: Essential Science Indicators from Thomson Reuters.

Citation Per Paper
Rank	Field	Papers	Citations	Citations Per Paper
1	SWITZERLAND	171,248	2,693,730	15.73
2	USA	2,974,344	44,669,056	15.02
3	DENMARK	92,734	1,369,297	14.77
4	NETHERLANDS	236,344	3,419,657	14.47
5	SCOTLAND	106,559	1,522,948	14.29
6	ENGLAND	682,018	9,399,334	13.78
7	SWEDEN	174,789	2,407,364	13.77
8	FINLAND	86,509	1,113,141	12.87
9	BELGIUM	128,800	1,613,458	12.53
10	CANADA	424,562	5,233,211	12.33
11	GERMANY	766,162	9,406,841	12.28
12	AUSTRIA	89,782	1,075,042	11.97
13	ISRAEL	109,410	1,287,435	11.77
14	NORWAY	65,306	764,040	11.70
15	FRANCE	548,046	6,304,141	11.50
16	WALES	35,592	404,997	11.38
17	AUSTRALIA	276,622	3,067,686	11.09
18	ITALY	403,588	4,417,871	10.95
19	NORTH IRELAND	17,485	190,093	10.87
20	IRELAND	39,618	416,966	10.52
SOURCE: Essential Science Indicators from Thomson Reuters.