Johannes Keizer

642 total citations
11 papers, 527 citations indexed

About

Johannes Keizer is a scholar working on Pollution, Health, Toxicology and Mutagenesis and Plant Science. According to data from OpenAlex, Johannes Keizer has authored 11 papers receiving a total of 527 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Pollution, 5 papers in Health, Toxicology and Mutagenesis and 4 papers in Plant Science. Recurrent topics in Johannes Keizer's work include Pesticide and Herbicide Environmental Studies (5 papers), Environmental Toxicology and Ecotoxicology (5 papers) and Pharmaceutical and Antibiotic Environmental Impacts (4 papers). Johannes Keizer is often cited by papers focused on Pesticide and Herbicide Environmental Studies (5 papers), Environmental Toxicology and Ecotoxicology (5 papers) and Pharmaceutical and Antibiotic Environmental Impacts (4 papers). Johannes Keizer collaborates with scholars based in Italy, Germany and United States. Johannes Keizer's co-authors include Frans F. Jöbsis, Myron Rosenthal, Joseph C. LaManna, Luciano Vittozzi, Giuseppina D’Agostino, Enzo Funari, Paola Bottoni, Roland Nagel, Emanuela Testai and Victor W. Macdonald and has published in prestigious journals such as The Science of The Total Environment, Journal of Applied Physiology and Chemosphere.

In The Last Decade

Johannes Keizer

11 papers receiving 492 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Johannes Keizer Italy 9 190 142 138 119 66 11 527
Nicole J. Sylvain Canada 13 116 0.6× 18 0.1× 30 0.2× 50 0.4× 28 0.4× 25 578
Sonja Buratovic Sweden 11 119 0.6× 27 0.2× 110 0.8× 76 0.6× 7 0.1× 19 485
J A Lipp United States 9 46 0.2× 13 0.1× 74 0.5× 108 0.9× 37 0.6× 9 388
T. Lister United Kingdom 12 47 0.2× 46 0.3× 17 0.1× 138 1.2× 7 0.1× 26 455
Shlomo Shapira Israel 12 79 0.4× 37 0.3× 11 0.1× 237 2.0× 8 0.1× 19 582
Maria Balduzzi Italy 11 117 0.6× 36 0.3× 38 0.3× 23 0.2× 14 0.2× 22 487
Ingolf Lachmann Germany 18 173 0.9× 44 0.3× 27 0.2× 27 0.2× 15 0.2× 47 1.1k
S Fuenzalida United States 4 305 1.6× 30 0.2× 26 0.2× 61 0.5× 7 0.1× 8 655
Aart de Groot Netherlands 11 237 1.2× 56 0.4× 6 0.0× 67 0.6× 87 1.3× 14 632
Aron Ferreira da Silveira Brazil 10 101 0.5× 59 0.4× 8 0.1× 116 1.0× 5 0.1× 46 465

Countries citing papers authored by Johannes Keizer

Since Specialization
Citations

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

Fields of papers citing papers by Johannes Keizer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Johannes Keizer

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

All Works

11 of 11 papers shown
1.
Bottoni, Paola, Johannes Keizer, & Enzo Funari. (1996). Leaching indices of some major triazine metabolites. Chemosphere. 32(7). 1401–1411. 49 indexed citations
2.
Keizer, Johannes, et al.. (1995). Enzymological differences of AChE and diazinon hepatic metabolism: correlation of in vitro data with the selective toxicity of diazinon to fish species. The Science of The Total Environment. 171(1-3). 213–220. 60 indexed citations
3.
Keizer, Johannes, et al.. (1995). Acute toxicity of two carbamates to the Guppy (Poecilia reticulata) and the Zebrafish (Brachydanio rerio). The Science of The Total Environment. 171(1-3). 131–136. 20 indexed citations
4.
Keizer, Johannes, et al.. (1994). KOCestimation of deethylatrazine, deisopropylatrazine, hexazinone and terbuthylazine by reversed phase chromatography and sorption isotherms. Toxicological & Environmental Chemistry Reviews. 44(1-2). 1–10. 19 indexed citations
5.
Keizer, Johannes, et al.. (1993). COMPARATIVE DIAZINON TOXICITY IN GUPPY AND ZEBRA FISH: DIFFERENT ROLE OF OXIDATIVE METABOLISM. Environmental Toxicology and Chemistry. 12(7). 1243–1243. 2 indexed citations
6.
Keizer, Johannes, et al.. (1993). Comparative diazinon toxicity in guppy and zebra fish: Different role of oxidative metabolism. Environmental Toxicology and Chemistry. 12(7). 1243–1250. 24 indexed citations
7.
Sbraccia, Maria, et al.. (1992). The regioselective binding of CHCl3 reactive intermediates to microsomal phospholipids. Chemico-Biological Interactions. 85(2-3). 229–242. 21 indexed citations
8.
Keizer, Johannes, Giuseppina D’Agostino, & Luciano Vittozzi. (1991). The importance of biotransformation in the toxicity of xenobiotics to fish. I. Toxicity and bioaccumulation of diazinon in guppy (Poecilia reticulata) and zebra fish (Brachydanio rerio). Aquatic Toxicology. 21(3-4). 239–254. 72 indexed citations
9.
Testai, Emanuela, Johannes Keizer, G. M. Pacifici, & Luciano Vittozzi. (1991). Chloroform bioactivation by microsomes from colonie and ileal mucosa of rat and man. Toxicology Letters. 57(1). 19–27. 8 indexed citations
10.
Macdonald, Victor W., Johannes Keizer, & Frans F. Jöbsis. (1977). Spectrophotometric measurements of metabolically induced pH changes in frog skeletal muscle. Archives of Biochemistry and Biophysics. 184(2). 423–430. 15 indexed citations
11.
Jöbsis, Frans F., Johannes Keizer, Joseph C. LaManna, & Myron Rosenthal. (1977). Reflectance spectrophotometry of cytochrome aa3 in vivo. Journal of Applied Physiology. 43(5). 858–872. 237 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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