The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where John F. Callan sits on this spectrum.
This scientist: 104 publications — 3rd percentile
3% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 1,295 publications or more.
The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where John F. Callan sits on this spectrum.
This scientist: 41 D-Index — 2nd percentile
2% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 159 D-Index or more.
John F. Callan;A. Prasanna de Silva;David C. Magri
Suban K Sahoo;Darshna Sharma;Rati Kanta Bera;Guido Crisponi
David Costley;Conor Mc Ewan;Colin Fowley;Anthony P. McHale
Anthony P. McHale;John F. Callan;Nikolitsa Nomikou;Colin Fowley
Jordan Atchison;Sukanta Kamila;Heather Nesbitt;Kieran A. Logan
Graham R. C. Hamilton;Suban K. Sahoo;Sukanta Kamila;Narinder Singh
Ibrahim Yildiz;Stefania Impellizzeri;Erhan Deniz;Bridgeen McCaughan
Ibrahim Yildiz;Bridgeen McCaughan;Stuart F. Cruickshank;John F. Callan
Colin Fowley;Nikolitsa Nomikou;Anthony P. McHale;Bridgeen McCaughan
Yingjie Sheng;Heather Nesbitt;Bridgeen Callan;Mark A. Taylor
Narinder Singh;Navneet Kaur;Ray C. Mulrooney;John F. Callan
Ibrahim Yildiz;Erhan Deniz;Bridgeen McCaughan;Stuart F. Cruickshank
Nikolitsa Nomikou;Christine Sterrett;Ciara Arthur;Bridgeen McCaughan
Heather Nesbitt;Yingjie Sheng;Sukanta Kamila;Keiran Logan
David Costley;Heather Nesbitt;Nigel Ternan;James Dooley
Darshna Sharma;Suban K. Sahoo;Soma Chaudhary;Rati Kanta Bera
Narinder Singh;Navneet Kaur;John Dunn;Martha MacKay
John F. Callan;Ray C. Mulrooney;Sukanta Kamila;Bridgeen McCaughan
Ray C. Mulrooney;Narinder Singh;Navneet Kaur;John F. Callan
Conor McEwan;Heather Nesbitt;Dean Nicholas;Oisin N. Kavanagh
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