From: Assessment of technological level of stem cell research using principal component analysis
Indicators | Year | CA | CN | DE | FR | UK | IL | JP | KR | SG | TW | US |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Adult stem cell | ||||||||||||
NP_Patent | 1993 | 0.33a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | 1.00 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.04 | n/a | 0.04 | 0.05 | 0.04 | 0.08 | 0.10 | 0.05 | 0.08 | 0.05 | 1.00 | |
PII_Patent | 1993 | 0.35 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | 1.00 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.12 | n/a | n/a | 1.00 | n/a | 0.06 | 0.75 | n/a | 0.27 | n/a | 0.36 | |
NP_Paper | 1993 | 0.03 | n/a | 0.14 | 0.11 | 0.11 | 0.03 | 0.16 | n/a | n/a | n/a | 1.00 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.11 | 1.00 | 0.23 | 0.14 | 0.18 | 0.04 | 0.26 | 0.27 | 0.04 | 0.09 | 0.93 | |
PII_Paper | 1993 | 0.09 | n/a | 0.16 | 0.12 | 0.43 | 0.09 | 0.08 | n/a | n/a | n/a | 0.15 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.56 | 0.26 | 0.71 | 0.60 | 0.84 | 0.51 | 0.47 | 0.47 | 0.71 | 0.41 | 0.76 | |
Embryonic stem cell | ||||||||||||
NP_Patent | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.01 | n/a | n/a | 0.01 | 0.04 | 0.03 | 0.13 | 0.03 | 0.04 | 0.01 | 0.70 | |
PII_Patent | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | n/a | n/a | n/a | n/a | n/a | n/a | 0.67 | n/a | 0.09 | n/a | 0.35 | |
NP_Paper | 1993 | 0.05 | n/a | 0.16 | 0.03 | 0.11 | 0.03 | 0.05 | n/a | n/a | n/a | 0.38 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.04 | 0.15 | 0.07 | 0.03 | 0.09 | 0.02 | 0.07 | 0.06 | 0.03 | 0.01 | 0.35 | |
PII_Paper | 1993 | 1.00 | n/a | 0.13 | 0.00 | 0.02 | 0.06 | 0.02 | n/a | n/a | n/a | 0.12 |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.51 | 0.37 | 0.50 | 0.63 | 0.66 | 0.32 | 0.46 | 0.28 | 0.47 | 0.18 | 0.67 | |
Induced pluripotent stem cell | ||||||||||||
NP_Patent | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | n/a | n/a | n/a | n/a | n/a | n/a | 0.05 | n/a | n/a | 0.01 | 0.03 | |
PII_Patent | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | n/a | n/a | n/a | n/a | n/a | n/a | 0.59 | n/a | n/a | n/a | n/a | |
NP_Paper | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.01 | 0.07 | 0.02 | 0.01 | 0.02 | 0.01 | 0.08 | 0.01 | 0.00 | 0.01 | 0.15 | |
PII_Paper | 1993 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | â‹® | |
2012 | 0.88 | 0.35 | 0.44 | 0.94 | 1.00 | 0.69 | 0.37 | 0.45 | 0.33 | 0.58 | 0.62 |