Table 3.

Rankings among the 20 top-institutes in terms of I3 (expressed as percentages of the sum) compared with number of publications and citations, and % I3 (PR6) for the 58 journals in the ISI Subject Category “Nanoscience & nanotechnology”

		Publications	Citations	c/p	% I3	% PR6
1	Chinese Acad Sci, Beijing, Peoples R China	824	11,258	13.66	1.43++	1.42++
2	MIT, Cambridge, USA	420	8,372	19.93	0.89++	0.90++
3	Univ Calif Berkeley, Berkeley, USA	425	8,639	20.33	0.88++	0.92++
4	Natl Univ Singapore, Singapore, Singapore	470	6,483	13.79	0.83++	0.82++
5	Northwestern Univ, Evanston, USA	304	7,594	24.98	0.63++	0.68++
6	Univ Michigan, Ann Arbor, USA	301	5,633	18.71	0.63++	0.63++
7	Univ Illinois, Urbana, USA	307	6,905	22.49	0.61++	0.62++
8	Georgia Inst Technol, Atlanta, USA	307	5,658	18.43	0.61++	0.62++
9	Nanyang Technol Univ, Singapore, Singapore	383	4,110	10.73	0.60++	0.59++
10	Penn State Univ, University Park, USA	293	4,519	15.42	0.52++	0.53++
11	Univ Cambridge, Cambridge, UK	276	4,677	16.95	0.52++	0.52++
12	Seoul Natl Univ, Seoul, South Korea	314	4,135	13.17	0.51++	0.51++
13	Peking Univ, Beijing, Peoples R China	285	3,698	12.98	0.50++	0.50++
14	Rice Univ, Houston, USA	239	6,170	25.82	0.49++	0.55++
15	Purdue Univ, Lafayette, USA	282	3,931	13.94	0.48++	0.48++
16	Tohoku Univ, Miyagi, Japan	349	2,274	6.52	0.47− −	0.47− −
17	Univ Washington, Seattle, USA	210	5,126	24.41	0.47++	0.50++
18	Natl Inst Mat Sci, Ibaraki, Japan	271	2,831	10.45	0.46++	0.44++
19	Natl Cheng Kung Univ, Tainan, Taiwan	340	2,256	6.64	0.43− −	0.43− −
20	Stanford Univ, Stanford, USA	200	5,894	29.47	0.42++	0.47++

⁺⁺ p < 0.01 above the expectation; ⁺ p < 0.05 above the expectation; ^{− −} p < 0.01 below the expectation; ⁻ p < 0.05 below the expectation