H Seim

1.1k total citations
43 papers, 851 citations indexed

About

H Seim is a scholar working on Clinical Biochemistry, Molecular Biology and Biochemistry. According to data from OpenAlex, H Seim has authored 43 papers receiving a total of 851 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Clinical Biochemistry, 16 papers in Molecular Biology and 13 papers in Biochemistry. Recurrent topics in H Seim's work include Metabolism and Genetic Disorders (32 papers), Amino Acid Enzymes and Metabolism (13 papers) and Diet and metabolism studies (6 papers). H Seim is often cited by papers focused on Metabolism and Genetic Disorders (32 papers), Amino Acid Enzymes and Metabolism (13 papers) and Diet and metabolism studies (6 papers). H Seim collaborates with scholars based in Germany, United States and Ethiopia. H Seim's co-authors include Charles J. Rebouche, Erich Strack, H.‐P. Kleber, R. Claus, H. Aurich, Thomas Richter, Erich W. Bretthauer, Clifton Blincoe, Jürgen P. Schulze and Dietlind Sorger and has published in prestigious journals such as Journal of the American Chemical Society, Analytical Chemistry and Applied Microbiology and Biotechnology.

In The Last Decade

H Seim

42 papers receiving 748 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H Seim Germany 15 481 414 173 168 76 43 851
Erich Strack Germany 14 438 0.9× 349 0.8× 209 1.2× 192 1.1× 35 0.5× 105 712
Ian Kippen United States 19 138 0.3× 587 1.4× 174 1.0× 80 0.5× 65 0.9× 32 1.1k
Henry Jeffay United States 16 122 0.3× 341 0.8× 110 0.6× 270 1.6× 81 1.1× 35 1.1k
C.J.R. Thorne United Kingdom 14 168 0.3× 523 1.3× 144 0.8× 172 1.0× 51 0.7× 25 974
G. Bruno Italy 9 102 0.2× 276 0.7× 67 0.4× 72 0.4× 34 0.4× 14 748
Ben Bloom United States 20 165 0.3× 460 1.1× 210 1.2× 463 2.8× 250 3.3× 38 1.5k
Claus‐Dieter Langhans Germany 21 155 0.3× 556 1.3× 54 0.3× 117 0.7× 106 1.4× 38 1.1k
Marjorie G. Horning United States 13 81 0.2× 324 0.8× 91 0.5× 121 0.7× 90 1.2× 22 745
John P. Toth United States 14 175 0.4× 235 0.6× 63 0.4× 62 0.4× 76 1.0× 28 781
Jerry Ann Tillotson United States 11 109 0.2× 150 0.4× 51 0.3× 130 0.8× 163 2.1× 21 568

Countries citing papers authored by H Seim

Since Specialization
Citations

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

Fields of papers citing papers by H Seim

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H Seim

This figure shows the co-authorship network connecting the top 25 collaborators of H Seim. A scholar is included among the top collaborators of H Seim 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 H Seim. H Seim 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.
Peters, W.H.M., et al.. (2009). Ketosis, Serum Carnitine and its Precursor Amino Acids in Normal and Diabetic Ethiopians. Experimental and Clinical Endocrinology & Diabetes. 90(4). 83–92.
2.
Seim, H, et al.. (2001). L(-)-Carnitine and its precursor, gamma -butyrobetaine. 217–256. 9 indexed citations
3.
Seim, H, et al.. (2001). L(-)-Carnitine and its precursor, γ-butyrobetaine.. 217–256. 4 indexed citations
4.
Rebouche, Charles J. & H Seim. (1998). CARNITINE METABOLISM AND ITS REGULATION IN MICROORGANISMS AND MAMMALS. Annual Review of Nutrition. 18(1). 39–61. 294 indexed citations
7.
Richter, V, et al.. (1987). Carnitine and experimental carbohydrate-induced hyperlipoproteinemia.. PubMed. 290(1). 138–44. 3 indexed citations
8.
Strack, Erich, et al.. (1986). Radiolysis of D(+)‐carnitine by 60Co‐γ‐radiation and formation of L(+)‐β‐methylcholine. Journal of Labelled Compounds and Radiopharmaceuticals. 23(6). 607–617. 1 indexed citations
9.
Seim, H, et al.. (1983). Self‐decomposition of DL‐/methyl‐14C/carnitine to labelled β‐methylcholine and acetonyltrimethylammonium. Journal of Labelled Compounds and Radiopharmaceuticals. 20(9). 1035–1045. 4 indexed citations
10.
Stormorken, Helge, Frank Brosstad, & H Seim. (1983). A New Dysfibrinogenemia: Fibrinogen Oslo IV. Thrombosis and Haemostasis. 49(2). 120–122. 3 indexed citations
11.
Seim, H, et al.. (1982). Splitting of the C-N bond in carnitine by an enzyme (trimethylamine forming) from membranes ofAcinetobacter calcoaceticus. FEMS Microbiology Letters. 15(3). 165–167. 30 indexed citations
12.
Seim, H. (1982). Splitting of the C-N bond in carnitine by an enzyme (trimethylamine forming) from membranes of Acinetobacter calcoaceticus. FEMS Microbiology Letters. 15(3). 165–167. 1 indexed citations
13.
Seim, H, et al.. (1980). Stoffwechsel des l-Carnitins bei Enterobakterien. Journal of Basic Microbiology. 20(9). 591–594. 27 indexed citations
14.
Seim, H, et al.. (1980). Stoffwechsel des l‐Carnitins bei Enterobakterien. Zeitschrift für allgemeine Mikrobiologie. 20(9). 591–594. 28 indexed citations
15.
Seim, H & Erich Strack. (1980). Die Reduktion von Crotonobetain und D-Carnitin zu γ-Butyrobetain und der Stoffwechsel des L-Carnitins bei Maus und Ratte. Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 361(2). 1059–1068. 2 indexed citations
16.
Kleber, H.‐P., H Seim, H. Aurich, & Erich Strack. (1978). Beziehungen zwischen Carnitinstoffwechsel und Fetts�ureassimilation bei Pseudomonas putida. Archives of Microbiology. 116(2). 213–220. 22 indexed citations
17.
Seim, H & R. Dargel. (1978). [Induction of mitochondrial volume changes by homologous O-acyl carnitines].. PubMed. 37(1). 73–82. 1 indexed citations
18.
Seim, H & Erich Strack. (1977). [Acetylcarnitine in the blood and urine of the mouse after injection of L-carnitine and several O-acyl-L-carnitines (author's transl)].. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 358(6). 675–83. 4 indexed citations
19.
Seim, H, et al.. (1961). The Aluminum-Alizarin Complex as a Measure of Friedel-Crafts Catalysts in Paraffin Hydrocarbon Systems. Analytical Chemistry. 33(6). 790–793. 18 indexed citations
20.
Lytle, F. W., et al.. (1961). Determination of Trace Elements in Plant Material by Fluorescent X-Ray Analysis. Advances in X-ray Analysis. 5. 433–446. 6 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026