Per Hellung‐Larsen

1.0k total citations
54 papers, 870 citations indexed

About

Per Hellung‐Larsen is a scholar working on Molecular Biology, Environmental Chemistry and Ecology. According to data from OpenAlex, Per Hellung‐Larsen has authored 54 papers receiving a total of 870 indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Molecular Biology, 9 papers in Environmental Chemistry and 8 papers in Ecology. Recurrent topics in Per Hellung‐Larsen's work include Protist diversity and phylogeny (19 papers), RNA modifications and cancer (14 papers) and RNA and protein synthesis mechanisms (13 papers). Per Hellung‐Larsen is often cited by papers focused on Protist diversity and phylogeny (19 papers), RNA modifications and cancer (14 papers) and RNA and protein synthesis mechanisms (13 papers). Per Hellung‐Larsen collaborates with scholars based in Denmark, Poland and Germany. Per Hellung‐Larsen's co-authors include Sune Frederiksen, Vagn Leick, Jan Engberg, Vibeke Andersen, S. Frederiksen, Keld Danø, Niels Tommerup, Uffe Koppelhus, Knud Kjeldsen and Poul Astrup and has published in prestigious journals such as Nucleic Acids Research, Analytical Biochemistry and Biochemical Journal.

In The Last Decade

Per Hellung‐Larsen

53 papers receiving 798 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Per Hellung‐Larsen Denmark 19 654 119 72 61 51 54 870
L. Rasmussen Denmark 20 701 1.1× 239 2.0× 146 2.0× 64 1.0× 47 0.9× 74 1.2k
I Törö Hungary 17 645 1.0× 84 0.7× 26 0.4× 42 0.7× 19 0.4× 63 1.1k
Stefan Becker Germany 20 618 0.9× 194 1.6× 63 0.9× 139 2.3× 144 2.8× 36 1.2k
Judy Lieman‐Hurwitz Israel 16 965 1.5× 161 1.4× 106 1.5× 175 2.9× 124 2.4× 19 1.3k
Svein‐Ole Mikalsen Norway 22 981 1.5× 68 0.6× 29 0.4× 23 0.4× 26 0.5× 73 1.3k
Sum Chan United States 17 796 1.2× 218 1.8× 38 0.5× 44 0.7× 35 0.7× 24 1.1k
Gary J. Calton United States 25 639 1.0× 57 0.5× 176 2.4× 35 0.6× 17 0.3× 76 1.5k
Carmen Rotte Germany 12 803 1.2× 194 1.6× 33 0.5× 154 2.5× 39 0.8× 14 1.1k
Y Robin France 16 474 0.7× 101 0.8× 20 0.3× 38 0.6× 18 0.4× 59 790
Paul M.M. Weers United States 23 667 1.0× 146 1.2× 152 2.1× 54 0.9× 107 2.1× 57 1.4k

Countries citing papers authored by Per Hellung‐Larsen

Since Specialization
Citations

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

Fields of papers citing papers by Per Hellung‐Larsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per Hellung‐Larsen. 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 Per Hellung‐Larsen. The network helps show where Per Hellung‐Larsen may publish in the future.

Co-authorship network of co-authors of Per Hellung‐Larsen

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

All Works

20 of 20 papers shown
1.
Hellung‐Larsen, Per. (2004). Cloning of Tetrahymena cells in a chemically defined medium is possible in the presence of surfactants or at reduced temperature. Journal of Biotechnology. 115(2). 167–177. 6 indexed citations
2.
Koppelhus, Uffe, Per Hellung‐Larsen, & Vagn Leick. (2003). A Quantitative Assay for Measurement of Chemokinesis in Tetrahymena. Humana Press eBooks. 161. 101–106. 4 indexed citations
3.
Hellung‐Larsen, Per, et al.. (2000). Effects of Pluronic F-68 on Tetrahymena cells: protection against chemical and physical stress and prolongation of survival under toxic conditions. Journal of Biotechnology. 76(2-3). 185–195. 29 indexed citations
4.
Kristiansen, Thomas Birk, et al.. (1999). Interface‐Mediated Death of Unconditioned Tetrahymena Cells: Effect of the Medium Composition. Journal of Eukaryotic Microbiology. 46(1). 6–11. 18 indexed citations
5.
Eugen‐Olsen, Jesper, et al.. (1997). Expression of Tetrahymena snRNA gene variants including a U1 gene with mutations in the 5′ splice site recognition sequence. Gene. 189(2). 221–225. 2 indexed citations
6.
Leick, Vagn, et al.. (1996). Signal Peptide-Induced Sensory Behavior in Free Ciliates: Bioassays and Cellular Mechanisms. Progress in molecular and subcellular biology. 17. 61–79. 10 indexed citations
7.
Koppelhus, Uffe, Per Hellung‐Larsen, & Vagn Leick. (1994). An Improved Quantitative Assay for Chemokinesis in Tetrahymena. Biological Bulletin. 187(1). 8–15. 12 indexed citations
8.
Koppelhus, Uffe, Per Hellung‐Larsen, & Vagn Leick. (1994). Physiological Parameters Affecting the Chemosensory Response of Tetrahymena. Biological Bulletin. 187(1). 1–7. 11 indexed citations
9.
Hellung‐Larsen, Per, et al.. (1993). Characteristics of dividing and non-dividing Tetrahymena cells at different physiological states. European Journal of Protistology. 29(2). 182–190. 17 indexed citations
10.
Hellung‐Larsen, Per, Vagn Leick, Niels Tommerup, & Dorte Kronborg. (1990). Chemotaxis in Tetrahymena. European Journal of Protistology. 25(3). 229–233. 8 indexed citations
11.
Leick, Vagn, et al.. (1990). A paper membrane filter assay for ciliate chemoattraction. Analytical Biochemistry. 184(1). 63–66. 8 indexed citations
12.
Hellung‐Larsen, Per, et al.. (1989). Division competence in Tetrahymena: Determination of minimum cell volume and rate of nutrient uptake. Journal of Cellular Biochemistry. 41(3). 125–133. 7 indexed citations
13.
Andersen, Vibeke, et al.. (1988). Immune hemolytic assay for identification of human anti‐dsDNA antibodies with DNA‐coated red blood cells as target cells. Apmis. 96(1-6). 194–198. 1 indexed citations
14.
Hellung‐Larsen, Per. (1988). Parameters affecting the maximum cell concentration ofTetrahymena. Cellular and Molecular Life Sciences. 44(1). 58–60. 12 indexed citations
15.
Frederiksen, S., et al.. (1981). Subcellular localization of low-molecular-weight RNA components in rat liver. Biochemical Journal. 193(3). 743–748. 4 indexed citations
16.
Danø, Keld, Sune Frederiksen, & Per Hellung‐Larsen. (1972). Inhibition of DNA and RNA synthesis by daunorubicin in sensitive and resistant Ehrlich ascites tumor cells in vitro.. PubMed. 32(6). 1307–14. 57 indexed citations
17.
Hellung‐Larsen, Per, et al.. (1971). Scintillation Counting of Aqueous Solutions of 3H RNA.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 25. 1359–1369. 20 indexed citations
18.
Frederiksen, Sune, T. Tønnesen, & Per Hellung‐Larsen. (1971). Isolation of two small molecular weight RNA components by MAK column chromatography. Archives of Biochemistry and Biophysics. 142(1). 238–246. 10 indexed citations
19.
Hellung‐Larsen, Per, Tomas Laursen, Knud Kjeldsen, & Poul Astrup. (1968). Lactate dehydrogenase isoenzymes of aortic tissue in rabbits exposed to carbon monoxide. Journal of Atherosclerosis Research. 8(2). 343–349. 8 indexed citations
20.
Hellung‐Larsen, Per & Vibeke Andersen. (1968). Lactate dehydrogenase isoenzymes of human lymphocytes cultured with phytohaemagglutinin at different oxygen tensions. Experimental Cell Research. 50(2). 286–292. 28 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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