R. Johannsen

549 total citations
29 papers, 423 citations indexed

About

R. Johannsen is a scholar working on Immunology, Molecular Biology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, R. Johannsen has authored 29 papers receiving a total of 423 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Immunology, 10 papers in Molecular Biology and 7 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in R. Johannsen's work include Monoclonal and Polyclonal Antibodies Research (7 papers), Immune Cell Function and Interaction (4 papers) and Glycosylation and Glycoproteins Research (3 papers). R. Johannsen is often cited by papers focused on Monoclonal and Polyclonal Antibodies Research (7 papers), Immune Cell Function and Interaction (4 papers) and Glycosylation and Glycoproteins Research (3 papers). R. Johannsen collaborates with scholars based in Germany, United States and Switzerland. R. Johannsen's co-authors include N K Day, Robert A. Good, V. Lenhard, Elisabeth Fischer, H Gewurz, J. Finstad, J. Hilfenhaus, Georg H. Schmid, H. Grosse‐Wilde and Paul S. Seifert and has published in prestigious journals such as The Journal of Experimental Medicine, JNCI Journal of the National Cancer Institute and Applied Microbiology and Biotechnology.

In The Last Decade

R. Johannsen

29 papers receiving 369 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Johannsen Germany 9 176 87 67 57 56 29 423
M. Migita Japan 5 273 1.6× 54 0.6× 42 0.6× 45 0.8× 12 0.2× 6 467
H U Lutz Switzerland 10 163 0.9× 125 1.4× 153 2.3× 57 1.0× 11 0.2× 13 664
G. Schmidt Germany 13 244 1.4× 100 1.1× 147 2.2× 52 0.9× 7 0.1× 33 511
I. Dunsford Nigeria 11 89 0.5× 106 1.2× 252 3.8× 24 0.4× 18 0.3× 34 516
N Stojanović Argentina 12 94 0.5× 74 0.9× 89 1.3× 26 0.5× 11 0.2× 35 344
Yasutaka Kakinoki Japan 12 107 0.6× 98 1.1× 154 2.3× 12 0.2× 71 1.3× 43 444
H. M. Bhatia India 14 72 0.4× 99 1.1× 264 3.9× 26 0.5× 19 0.3× 57 632
Jiro Kudo Japan 15 128 0.7× 163 1.9× 62 0.9× 72 1.3× 3 0.1× 39 566
Birgitte Keld United States 5 219 1.2× 136 1.6× 46 0.7× 10 0.2× 5 0.1× 6 413
C Willems Netherlands 8 86 0.5× 115 1.3× 102 1.5× 42 0.7× 4 0.1× 18 486

Countries citing papers authored by R. Johannsen

Since Specialization
Citations

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

Fields of papers citing papers by R. Johannsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Johannsen

This figure shows the co-authorship network connecting the top 25 collaborators of R. Johannsen. A scholar is included among the top collaborators of R. Johannsen 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 R. Johannsen. R. Johannsen 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.
Schmid, Georg H., et al.. (1992). Repeated batch cultivation of rBHK cells on Cytodex 3 microcarriers: antithrombin III, amino acid, and fatty acid metabolic quotients. Applied Microbiology and Biotechnology. 38(3). 4 indexed citations
2.
Schulz, Rainer, et al.. (1991). Inactivation of recombinant plasmid DNA from a human erythropoietin-producing mouse cell line grown on a large scale. Applied Microbiology and Biotechnology. 35(5). 622–30. 3 indexed citations
3.
4.
Schmid, Georg H. & R. Johannsen. (1990). Metabolic quotients for recombinant CHO and BHK cell lines producing human anttthrombin III. Biotechnology Letters. 12(5). 317–322. 7 indexed citations
5.
Johannsen, R., et al.. (1986). Pitfalls of single radial immunodiffusion techniques used for the quantification of influenza haemagglutinin.. PubMed. 65. 255–60. 2 indexed citations
6.
Johannsen, R., et al.. (1985). Quantification of haemagglutinin of influenza Tween-ether split vaccines by immunodiffusion. Vaccine. 3(3). 235–240. 11 indexed citations
7.
Johannsen, R., et al.. (1983). The quantification of the haemagglutinin content of influenza whole virus and Tween-ether split vaccines. Journal of Biological Standardization. 11(4). 341–352. 6 indexed citations
8.
Johannsen, R., et al.. (1982). [Protective action of undegraded and S-sulfonated 7S antibodies in 4 different experimental virus infections].. PubMed. 9. 141–54. 2 indexed citations
9.
Bohn, H., R. Johannsen, & Wolfgang Kraus. (1980). Neues Plazentaprotein (PP15) mit immunsuppressiver Wirkung. Archives of Gynecology and Obstetrics. 230(2). 167–172. 12 indexed citations
10.
Johannsen, R., et al.. (1979). Characteristics of Cytotoxic Antibodies Against Neuraminidase-Treated Lymphocytes in Man. JNCI Journal of the National Cancer Institute. 62(4). 733–42. 5 indexed citations
11.
Johannsen, R., H.H. Sedlacek, & F. R. Seiler. (1979). Immunological Characteristics of Neo-Antigens on the Cell Surface after Neuraminidase Treatment. Advances in experimental medicine and biology. 114. 223–227. 2 indexed citations
12.
Niese, D., H. Grosse‐Wilde, Bo Dupont, et al.. (1978). Evidence for subtypic determinants in the HLA-DW3 cluster. Human Genetics. 43(1). 23–30. 7 indexed citations
13.
Hilfenhaus, J., et al.. (1977). Sensitivity of various human lymphoblastoid cells to the antiviral and anticellular activity of human leukocyte interferon. Archives of Virology. 54(3). 271–277. 26 indexed citations
14.
Grosse‐Wilde, H., et al.. (1977). Population Data on Two New HLA‐D Determinants, El and RE. Scandinavian Journal of Immunology. 6(5). 515–521. 6 indexed citations
15.
Johannsen, R., et al.. (1976). Inhibition of the mixed leukocyte culture (MLC) by proteins: mechanism and specificity of the reaction [proceedings].. PubMed. 152(4). 280–5. 4 indexed citations
16.
Johannsen, R., et al.. (1975). Immunologische Möglichkeiten zur Infektionsverhütung in der Herzchirurgie* **. The Thoracic and Cardiovascular Surgeon. 23(4). 417–422. 2 indexed citations
17.
Johannsen, R., et al.. (1974). Blood group and HL-A specific substances in immune globulin and albumin preparations of human placental origin.. PubMed. 27. 129–36. 1 indexed citations
18.
Johannsen, R., et al.. (1972). HL-A antibodies in chimpanzees after specific treatment with human leukocytes and antihuman lymphocyte globulin.. PubMed. 4(1). 77–81. 1 indexed citations
19.
Day, N K, H Gewurz, R. Johannsen, J. Finstad, & Robert A. Good. (1970). COMPLEMENT AND COMPLEMENT-LIKE ACTIVITY IN LOWER VERTEBRATES AND INVERTEBRATES. The Journal of Experimental Medicine. 132(5). 941–950. 100 indexed citations
20.
Day, N K, Robert A. Good, J. Finstad, et al.. (1970). Interactions Between Endotoxic Lipopolysaccharides and the Complement System in the Sera of Lower Vertebrates. Experimental Biology and Medicine. 133(4). 1397–1401. 19 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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