Tor‐Ivar Karlsen
- Co-authors
- Gerd Karin NatvigJøran HjelmesæthRonette L. KolotkinJohn Roger AndersenVilly VågeAnny AasprangBjørg DaleSerena Tonstad
- Topics
- Bariatric Surgery and Outcomes (8 papers)Obesity and Health Practices (7 papers)Health Policy Implementation Science (3 papers)
- Journals
- SHILAP Revista de lepidopterologíaSocial Science & MedicineSLEEP
- Partner nations
- NorwayUnited StatesFrance
In The Last Decade
Tor‐Ivar Karlsen
25 papers receiving 423 citations
Peers
Comparison fields: 5 of 81
- Surgery 223
- Pharmacy 114
- Physiology 105
- Clinical Psychology 54
- General Health Professions 46
Countries citing papers authored by Tor‐Ivar Karlsen
This map shows the geographic impact of Tor‐Ivar Karlsen'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 Tor‐Ivar Karlsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tor‐Ivar Karlsen more than expected).
Fields of papers citing papers by Tor‐Ivar Karlsen
This network shows the impact of papers produced by Tor‐Ivar Karlsen. 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 Tor‐Ivar Karlsen. The network helps show where Tor‐Ivar Karlsen may publish in the future.
Co-authorship network of co-authors of Tor‐Ivar Karlsen
This figure shows the co-authorship network connecting the top 25 collaborators of Tor‐Ivar Karlsen. A scholar is included among the top collaborators of Tor‐Ivar Karlsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Tor‐Ivar Karlsen. Tor‐Ivar Karlsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 0 | |
| 2 | 2 | |
| 3 | 0 | |
| 4 | 8 | |
| 5 | 15 | |
| 6 | 6 | |
| 7 | 7 | |
| 8 | 12 | |
| 9 | 2 | |
| 10 | 20 | |
| 11 | 18 | |
| 12 | 16 | |
| 13 | 8 | |
| 14 | 16 | |
| 15 | 1 | |
| 16 | 43 | |
| 17 | 121 | |
| 18 | 23 | |
| 19 | 51 | |
| 20 | 26 |
About Tor‐Ivar Karlsen
Tor‐Ivar Karlsen is a scholar working on Pharmacy, Research and Theory and Issues, ethics and legal aspects, having authored 28 papers that have together received 436 indexed citations. Recurring topics across this work include Bariatric Surgery and Outcomes (8 papers), Obesity and Health Practices (7 papers) and Health Policy Implementation Science (3 papers). The work is most often cited by research in Pharmacy (114 citations), Research and Theory (9 citations) and Public Administration (18 citations). Tor‐Ivar Karlsen has collaborated with scholars based in Norway, United States and France. Frequent co-authors include Gerd Karin Natvig, Jøran Hjelmesæth, Ronette L. Kolotkin, John Roger Andersen, Villy Våge, Anny Aasprang, Bjørg Dale, Serena Tonstad, Einar Kristian Tveitå and Rune Sandbu. Their work appears in journals such as SHILAP Revista de lepidopterología, Social Science & Medicine and SLEEP.
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.