Halldor Jóhannsson

1.5k total citations
13 papers, 434 citations indexed

About

Halldor Jóhannsson is a scholar working on Neurology, Genetics and Molecular Biology. According to data from OpenAlex, Halldor Jóhannsson has authored 13 papers receiving a total of 434 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Neurology, 6 papers in Genetics and 4 papers in Molecular Biology. Recurrent topics in Halldor Jóhannsson's work include Traumatic Brain Injury and Neurovascular Disturbances (9 papers), High Altitude and Hypoxia (5 papers) and Mitochondrial Function and Pathology (2 papers). Halldor Jóhannsson is often cited by papers focused on Traumatic Brain Injury and Neurovascular Disturbances (9 papers), High Altitude and Hypoxia (5 papers) and Mitochondrial Function and Pathology (2 papers). Halldor Jóhannsson collaborates with scholars based in Sweden, Iceland and Switzerland. Halldor Jóhannsson's co-authors include Bo K. Siesjö, Lars Borgström, T. Holmin, K. Norberg, B. Ljunggren, Bo Eklöf, Jeffrey R. Gulcher, Hjördis Bjarnason, Michael L. Frigge and Kāri Stefánsson and has published in prestigious journals such as The American Journal of Human Genetics, Advances in experimental medicine and biology and Scandinavian Journal of Gastroenterology.

In The Last Decade

Halldor Jóhannsson

13 papers receiving 385 citations

Peers

Halldor Jóhannsson

NEURO

RNMI

GENET

PHYSI

Posner Jb United States

Marcia L. Heizer United States

Ralph W. Alman United States

R. Rubio Brazil

K Kogure Japan

D Calver United Kingdom

István Nyáry Hungary

Naoshi Okita Japan

K. Strenn Austria

P. Senanayake United States

Posner Jb United States

Halldor Jóhannsson

180 ×0.8

NEURO

89 ×1.0

49 ×0.6

RNMI

20 ×0.3

GENET

41 ×0.8

PHYSI

Citations per year, relative to Halldor Jóhannsson Halldor Jóhannsson (= 1×) peers Posner Jb

Countries citing papers authored by Halldor Jóhannsson

Since Specialization

Citations

This map shows the geographic impact of Halldor Jóhannsson'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 Halldor Jóhannsson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Halldor Jóhannsson more than expected).

Fields of papers citing papers by Halldor Jóhannsson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Halldor Jóhannsson. 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 Halldor Jóhannsson. The network helps show where Halldor Jóhannsson may publish in the future.

Co-authorship network of co-authors of Halldor Jóhannsson

This figure shows the co-authorship network connecting the top 25 collaborators of Halldor Jóhannsson. A scholar is included among the top collaborators of Halldor Jóhannsson 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 Halldor Jóhannsson. Halldor Jóhannsson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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13 of 13 papers shown

Guðmundsson, Guðmundur H., Stefán E. Matthíasson, Halldor Jóhannsson, et al.. (2002). Localization of a Gene for Peripheral Arterial Occlusive Disease to Chromosome 1p31. The American Journal of Human Genetics. 70(3). 586–592. 47 indexed citations

Arnar, Davíð O., et al.. (1991). Cancer of the Pancreas in Iceland An Epidemiologic and Clinical Study, 1974-85. Scandinavian Journal of Gastroenterology. 26(7). 724–730. 5 indexed citations

Siesjö, Bo K., et al.. (1976). Cerebral Oxygenation in Arterial Hypoxia. Advances in experimental medicine and biology. 75. 335–342. 5 indexed citations

Jóhannsson, Halldor & Bo K. Siesjö. (1975). Brain Energy Metabolism in Anesthetized Rats in Acute Anemia. Acta Physiologica Scandinavica. 93(4). 515–524. 14 indexed citations

Borgström, Lars, Halldor Jóhannsson, & Bo K. Siesjö. (1975). The Relationship between Arterial P_O2 and Cerebral Blood Flow in Hypoxic Hypoxia. Acta Physiologica Scandinavica. 93(3). 423–432. 102 indexed citations

Jóhannsson, Halldor & Bo K. Siesjö. (1975). Cerebral Blood Flow and Oxygen Consumption in the Rat in Hypoxic Hypoxia. Acta Physiologica Scandinavica. 93(2). 269–276. 87 indexed citations

Borgström, Lars, Halldor Jóhannsson, & Bo K. Siesjö. (1975). The Influence of Acute Normovolemic Anemia on Cerebral Blood Flow and Oxygen Consumption of Anesthetized Rats. Acta Physiologica Scandinavica. 93(4). 505–514. 71 indexed citations

Jóhannsson, Halldor & Bo K. Siesjö. (1974). Blood Flow and Oxygen Consumption in the Rat Brain in Dilutional Anemia. Acta Physiologica Scandinavica. 91(1). 136–138. 19 indexed citations

Holmin, T., Halldor Jóhannsson, & Bo K. Siesjö. (1974). Effects on Cerebral Energy State of Arterial Hypotension in Rats with Porta‐Caval Anastomosis. Acta Physiologica Scandinavica. 90(2). 345–357. 9 indexed citations

10.

Eklöf, Bo, T. Holmin, Halldor Jóhannsson, & Bo K. Siesjö. (1974). Cerebral Blood Flow and Cerebral Metabolic Rate for Oxygen in Rats with Porta‐Caval Anastomosis. Acta Physiologica Scandinavica. 90(2). 337–344. 25 indexed citations

11.

Jóhannsson, Halldor, et al.. (1974). Brain dysfunction in cerebral hypoxia and ischemia.. PubMed. 53. 75–112. 29 indexed citations

12.

Jóhannsson, Halldor & Bo K. Siesjö. (1974). Blood Flow and Oxygen Consumption of the Rat Brain in Profound Hypoxia. Acta Physiologica Scandinavica. 90(1). 281–282. 18 indexed citations

13.

Jóhannsson, Halldor, et al.. (1974). Secondary hyperparathyroidism in rats with experimentally induced pyelonephritis. Urological Research. 2(1). 11–20. 3 indexed citations

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.

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