John O’Hagan
Impact in
- Endocrine and Autonomic Systems top 0.5%
- Circadian rhythm and melatonin
- Global and Planetary Change top 2%
- Impact of Light on Environment and Health
Papers in
-
- Ocular and Laser Science Research 15
- Dermatology 14
- Skin Protection and Aging 14
- Co-authors
- Luke Price (5 shared papers)Marina Khazova (17 shared papers)Robert J. Lucas (3 shared papers)Timothy M. Brown (3 shared papers)Steven W. Lockley (3 shared papers)Debra J. Skene (3 shared papers)Stuart N. Peirson (3 shared papers)Charles A. Czeisler (3 shared papers)
- Journals
- Photochemistry and Photobiology (7 papers)Radiation Protection Dosimetry (6 papers)Veterinary Record (3 papers)Journal of Radiological Protection (3 papers)Journal of Laser Applications (2 papers)
- Partner nations
- United KingdomUnited StatesSwitzerland
In The Last Decade
John O’Hagan
45 papers receiving 1.6k citations
Hit Papers
Peers
Comparison fields: 5 of 135
- Endocrine and Autonomic Systems 836
- Global and Planetary Change 727
- Building and Construction 269
- Experimental and Cognitive Psychology 249
- Health, Toxicology and Mutagenesis 247
Countries citing papers authored by John O’Hagan
This map shows the geographic impact of John O’Hagan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John O’Hagan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John O’Hagan more than expected).
Fields of papers citing papers by John O’Hagan
This network shows the impact of papers produced by John O’Hagan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John O’Hagan. The network helps show where John O’Hagan may publish in the future.
Co-authors
The 25 scholars most cited alongside John O’Hagan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 48 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Measuring and using light in the melanopsin age Hit paper breakdown → | 2013 | 898 |
| 2 | Recommendations for daytime, evening, and nighttime indoor light exposure to best support physiology, sleep, and wakefulness in healthy adults Hit paper breakdown → | 2022 | 301 |
| 3 | 2016 | 130 | |
| 4 | 2015 | 52 | |
| 5 | 2008 | 35 | |
| 6 | 2020 | 32 | |
| 7 | 2020 | 19 | |
| 8 | 2015 | 17 | |
| 9 | 2018 | 16 | |
| 10 | 2006 | 16 | |
| 11 | 2015 | 15 | |
| 12 | 2016 | 13 | |
| 13 | 1988 | 12 | |
| 14 | 2012 | 12 | |
| 15 | 2021 | 11 | |
| 16 | 2017 | 10 | |
| 17 | 2011 | 10 | |
| 18 | 2015 | 10 | |
| 19 | 1973 | 9 | |
| 20 | 2019 | 8 |
About John O’Hagan
John O’Hagan is a scholar working on Ophthalmology, Dermatology, Health, Toxicology and Mutagenesis, Global and Planetary Change and Pulmonary and Respiratory Medicine, having authored 48 papers that have together received 1.7k indexed citations. Recurring topics across this work include Ocular and Laser Science Research (15 papers), Skin Protection and Aging (14 papers), Climate Change and Health Impacts (8 papers), Air Quality and Health Impacts (7 papers), Impact of Light on Environment and Health (7 papers), Infection Control and Ventilation (4 papers), Indoor Air Quality and Microbial Exposure (4 papers) and Circadian rhythm and melatonin (4 papers). The work is most often cited by research in Endocrine and Autonomic Systems (836 citations), Global and Planetary Change (727 citations), Building and Construction (269 citations), Experimental and Cognitive Psychology (249 citations) and Health, Toxicology and Mutagenesis (247 citations). John O’Hagan has collaborated with scholars based in United Kingdom, United States and Switzerland. Frequent co-authors include Luke Price, Marina Khazova, Robert J. Lucas, Timothy M. Brown, Steven W. Lockley, Debra J. Skene, Stuart N. Peirson, Charles A. Czeisler, George C. Brainard and Paul D. Gamlin. Their work appears in journals such as Photochemistry and Photobiology, Radiation Protection Dosimetry, Veterinary Record, Journal of Radiological Protection and Journal of Laser Applications.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.