Sigríður Ólafsdóttir

445 total citations
18 papers, 391 citations indexed

About

Sigríður Ólafsdóttir is a scholar working on Molecular Biology, Education and Clinical Biochemistry. According to data from OpenAlex, Sigríður Ólafsdóttir has authored 18 papers receiving a total of 391 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Molecular Biology, 4 papers in Education and 3 papers in Clinical Biochemistry. Recurrent topics in Sigríður Ólafsdóttir's work include Metabolism and Genetic Disorders (3 papers), Folate and B Vitamins Research (3 papers) and Electron Spin Resonance Studies (2 papers). Sigríður Ólafsdóttir is often cited by papers focused on Metabolism and Genetic Disorders (3 papers), Folate and B Vitamins Research (3 papers) and Electron Spin Resonance Studies (2 papers). Sigríður Ólafsdóttir collaborates with scholars based in Norway, Iceland and United States. Sigríður Ólafsdóttir's co-authors include Aurora Martı́nez, Torgeir Flatmark, Hans Geir Eiken, Jaran Apold, P.M. Knappskog, Anne P. Døskeland, Jan Haavik, Catherine Wright, Jacques Mallet and Martha Á. Hjálmarsdóttir and has published in prestigious journals such as Journal of Biological Chemistry, Biochemical Journal and Biochemical and Biophysical Research Communications.

In The Last Decade

Sigríður Ólafsdóttir

14 papers receiving 376 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sigríður Ólafsdóttir Norway 10 241 153 63 44 38 18 391
Sean W. Jordan United States 7 308 1.3× 110 0.7× 71 1.1× 43 1.0× 38 1.0× 8 471
Matti Nikkola Sweden 10 448 1.9× 135 0.9× 104 1.7× 58 1.3× 57 1.5× 13 668
S.M. Sullivan United States 7 268 1.1× 22 0.1× 113 1.8× 35 0.8× 12 0.3× 9 381
Haruhiko Tamaoki Japan 14 416 1.7× 60 0.4× 58 0.9× 26 0.6× 7 0.2× 27 567
Leslie M. Bloom United States 9 322 1.3× 60 0.4× 94 1.5× 65 1.5× 176 4.6× 11 576
Peter S. Fitt Canada 14 375 1.6× 33 0.2× 73 1.2× 26 0.6× 10 0.3× 48 536
F. Schmitzberger United Kingdom 9 299 1.2× 27 0.2× 58 0.9× 115 2.6× 20 0.5× 9 413
H. Lauble Germany 14 542 2.2× 27 0.2× 205 3.3× 25 0.6× 49 1.3× 17 743
Maria Vyazmensky Israel 18 585 2.4× 200 1.3× 184 2.9× 9 0.2× 27 0.7× 33 886
Aart de Kok Netherlands 12 343 1.4× 267 1.7× 128 2.0× 52 1.2× 5 0.1× 15 614

Countries citing papers authored by Sigríður Ólafsdóttir

Since Specialization
Citations

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

Fields of papers citing papers by Sigríður Ólafsdóttir

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sigríður Ólafsdóttir

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

All Works

18 of 18 papers shown
1.
2.
Ólafsdóttir, Sigríður, et al.. (2023). Íslenskur námsorðaforði. Opin vísindi (Opin vísindi). 1 indexed citations
3.
4.
Ólafsdóttir, Sigríður, et al.. (2020). Selective synthesis of N,N,N-trimethylated chitosan derivatives at different degree of substitution and investigation of structure-activity relationship for activity against P. aeruginosa and MRSA. International Journal of Biological Macromolecules. 160. 548–557. 30 indexed citations
5.
Ólafsdóttir, Sigríður, et al.. (2020). Adolescent Learning of Academic Vocabulary in Iceland. Journal of Adolescent & Adult Literacy. 64(1). 79–87. 2 indexed citations
6.
Ólafsdóttir, Sigríður. (2015). The development of vocabulary and reading comprehension among Icelandic second language learners. 1 indexed citations
7.
Ólafsdóttir, Sigríður. (2010). Íslenskur orðaforði íslenskra grunnskólanema sem eiga annað móðurmál en íslensku. 2 indexed citations
8.
Stefansson, Bjarki, et al.. (2009). Characterization of cold-adapted Atlantic cod (Gadus morhua) trypsin I — Kinetic parameters, autolysis and thermal stability. Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology. 155(2). 186–194. 26 indexed citations
9.
Ólafsdóttir, Sigríður & Aurora Martı́nez. (1999). The Accessibility of Iron at the Active Site of Recombinant Human Phenylalanine Hydroxylase to Water As Studied by 1H NMR Paramagnetic Relaxation. Journal of Biological Chemistry. 274(10). 6280–6284. 15 indexed citations
10.
Martı́nez, Aurora, P.M. Knappskog, Sigríður Ólafsdóttir, et al.. (1995). Expression of recombinant human phenylalanine hydroxylase as fusion protein in Escherichia coli circumvents proteolytic degradation by host cell proteases. Isolation and characterization of the wild-type enzyme. Biochemical Journal. 306(2). 589–597. 167 indexed citations
11.
Martı́nez, Aurora, Sigríður Ólafsdóttir, & Torgeir Flatmark. (1993). The cooperative binding of phenylalanine to phenylalanine 4‐monooxygenase studied by 1H‐NMR paramagnetic relaxation. European Journal of Biochemistry. 211(1-2). 259–266. 29 indexed citations
12.
Knappskog, Per M., Hans Geir Eiken, Aurora Martı́nez, et al.. (1993). Expression of Wild Type and Mutant Forms of Human Phenylalanine Hydroxylase in E. Coli. Advances in experimental medicine and biology. 338. 59–62. 22 indexed citations
13.
Martı́nez, Aurora, Sigríður Ólafsdóttir, Jan Haavik, & Torgeir Flatmark. (1992). Inactivation of purified phenylalanine hydroxylase by dithiothreitol. Biochemical and Biophysical Research Communications. 182(1). 92–98. 13 indexed citations
14.
Haavik, Jan, Aurora Martı́nez, Sigríður Ólafsdóttir, Jacques Mallet, & Torgeir Flatmark. (1992). The incorporation of divalent metal ions into recombinant human tyrosine hydroxylase apoenzymes studied by intrinsic fluorescence and 1H‐NMR spectroscopy. European Journal of Biochemistry. 210(1). 23–31. 40 indexed citations
15.
El‐Shall, M. Samy, Sigríður Ólafsdóttir, Michael Meot‐Ner, & L. Wayne Sieck. (1991). Energy effects on cluster ion distributions: beam expansion and thermochemical studies on mixed clusters of methanol and acetonitrile. Chemical Physics Letters. 185(3-4). 193–198. 14 indexed citations
16.
Ólafsdóttir, Sigríður & J F Chlebowski. (1989). A hybrid Escherichia coli alkaline phosphatase formed on proteolysis. Journal of Biological Chemistry. 264(8). 4529–4535. 5 indexed citations
17.
Ólafsdóttir, Sigríður, Catherine Wright, H.T. Wright, & J F Chlebowski. (1988). Crystals of a trypsin-modified alkaline phosphatase. Preliminary crystallographic characterization.. Journal of Biological Chemistry. 263(20). 10002–10004. 4 indexed citations
18.
Wright, Catherine & Sigríður Ólafsdóttir. (1986). Structural differences in the two major wheat germ agglutinin isolectins.. Journal of Biological Chemistry. 261(16). 7191–7195. 20 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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