R. Tykva

997 total citations
101 papers, 756 citations indexed

About

R. Tykva is a scholar working on Radiation, Global and Planetary Change and Molecular Biology. According to data from OpenAlex, R. Tykva has authored 101 papers receiving a total of 756 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Radiation, 21 papers in Global and Planetary Change and 19 papers in Molecular Biology. Recurrent topics in R. Tykva's work include Radioactive contamination and transfer (20 papers), Insect and Pesticide Research (14 papers) and Radioactive Decay and Measurement Techniques (14 papers). R. Tykva is often cited by papers focused on Radioactive contamination and transfer (20 papers), Insect and Pesticide Research (14 papers) and Radioactive Decay and Measurement Techniques (14 papers). R. Tykva collaborates with scholars based in Czechia, Germany and Slovakia. R. Tykva's co-authors include Petr Soudek, Tomáš Vaněk, Jan Hlaváček, Petr Šimek, Hana Šantrůčková, Tomáš Picek, Helmut Simon, F. Šorm, Dieter Berg and Zdeněk Wimmer and has published in prestigious journals such as Analytical Biochemistry, Journal of Agricultural and Food Chemistry and Chemosphere.

In The Last Decade

R. Tykva

95 papers receiving 710 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. Tykva Czechia 16 163 152 126 97 82 101 756
I. Kuleff Bulgaria 18 71 0.4× 73 0.5× 114 0.9× 14 0.1× 5 0.1× 63 808
James J. Leary United States 16 81 0.5× 99 0.7× 6 0.0× 120 1.2× 46 0.6× 64 770
Shu Fujimaki Japan 22 219 1.3× 93 0.6× 47 0.4× 20 0.2× 17 0.2× 52 1.6k
F. Horréard Germany 8 169 1.0× 138 0.9× 79 0.6× 63 0.6× 5 0.1× 10 873
S. Hayward United Kingdom 11 50 0.3× 161 1.1× 10 0.1× 136 1.4× 64 0.8× 15 790
Youbao Wang China 18 75 0.5× 43 0.3× 7 0.1× 28 0.3× 58 0.7× 104 948
Steffen Uhlig Germany 21 373 2.3× 53 0.3× 15 0.1× 85 0.9× 25 0.3× 101 1.5k
Heinrich Kaiser Germany 11 46 0.3× 35 0.2× 19 0.2× 99 1.0× 37 0.5× 18 628
Masanori Sato Japan 13 264 1.6× 251 1.7× 166 1.3× 17 0.2× 4 0.0× 42 773
Lucas Henrique Fantin Brazil 11 52 0.3× 79 0.5× 129 1.0× 17 0.2× 2 0.0× 61 579

Countries citing papers authored by R. Tykva

Since Specialization
Citations

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

Fields of papers citing papers by R. Tykva

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of R. Tykva. A scholar is included among the top collaborators of R. Tykva 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. Tykva. R. Tykva 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.
Jirošová, Anna, Pavel Majer, Andrej Jančařík, et al.. (2014). Sphinganine‐Like Biogenesis of (E)‐1‐Nitropentadec‐1‐ene in Termite Soldiers of the Genus Prorhinotermes. ChemBioChem. 15(4). 533–536. 5 indexed citations
2.
Žáček, Petr, R. Tykva, Jiří Kindl, et al.. (2013). De Novo Biosynthesis of Sexual Pheromone in the Labial Gland of Bumblebee Males. ChemBioChem. 14(3). 361–371. 31 indexed citations
3.
Hlaváček, Jan, et al.. (2011). Oostatic peptides containing d-amino acids: synthesis, oostatic activity, degradation, accumulation in ovaries and NMR study. Amino Acids. 42(5). 1715–1725. 1 indexed citations
4.
Slaninová, Jiřina, et al.. (2010). Study of Oostatic Peptide Uptake and Metabolism in Developing Ovaries of the Flesh Fly,Neobellieria bullata. Journal of Insect Science. 10(48). 1–10. 1 indexed citations
5.
Tykva, R., et al.. (2009). Bioaccumulation of uranium from waste water using different strains of Saccharomyces cerevisiae. Nukleonika. 143–148. 8 indexed citations
6.
Soudek, Petr, et al.. (2007). Comparison of 226Ra nuclide from soil by three woody species Betula pendula, Sambucus nigra and Alnus glutinosa during the vegetation period. Journal of Environmental Radioactivity. 97(1). 76–82. 16 indexed citations
7.
Hanus, Robert, et al.. (2007). Small‐scale in vivo imaging of soft tissues by radioscopy using single X‐ray photon counting. Journal of Microscopy. 226(3). 191–194. 6 indexed citations
8.
Tykva, R., et al.. (2006). Radiochromatographic assay of metabolites of the oostatic peptide labeled in different positions of the peptide chain. Journal of Chromatography B. 848(2). 258–263. 2 indexed citations
9.
Hlaváček, Jan, et al.. (2006). Preparation of tritiated oostatic peptides for study of radioactivity incorporation in flesh fly Neobellieria bullata. Amino Acids. 33(3). 489–497. 2 indexed citations
10.
Tykva, R., et al.. (2005). Bioaccumulation of 226 Ra in the plants growing near uranium facilities. Nukleonika. 25–27. 3 indexed citations
11.
Šantrůčková, Hana, Michael I. Bird, Dana Elhottová, et al.. (2005). Heterotrophic Fixation of CO2 in Soil. Microbial Ecology. 49(2). 218–225. 49 indexed citations
12.
Tykva, R., et al.. (2005). Biodegradation of juvenoid diastereoisomers: Radio-HPLC and MS analysis. Chemosphere. 60(9). 1197–1202. 7 indexed citations
13.
Tykva, R.. (2004). Sources of environmental radionuclides and recent results in analyses of bioaccumulation. A review. Nukleonika. 3–7. 3 indexed citations
14.
Slaninová, Jiřina, et al.. (2004). Activity and mechanism of action of insect oostatic peptides in flesh fly. Bioorganic Chemistry. 32(4). 263–273. 9 indexed citations
15.
Tykva, R., et al.. (2003). Degradation of juvenile hormone analog by soil microbial isolates. Chemosphere. 52(1). 151–159. 2 indexed citations
16.
Tykva, R., et al.. (2003). Radio-high-performance liquid chromatography for ecotoxicity assessment of insect growth regulators. Journal of Chromatography A. 1032(1-2). 59–63. 5 indexed citations
17.
Forman, Stanislav, et al.. (2002). Evaluation of toxicity of pesticides and their biodegradation products using human cells. Chemosphere. 46(2). 209–217. 13 indexed citations
18.
Hlaváček, Jan, et al.. (1997). Synthesis, radiolabeling and biological activity of peptide oostatic hormone and its analogues. Journal of Peptide Research. 50(3). 153–158. 16 indexed citations
19.
Дачев, Ц., Yu.N. Matviichuk, Jordanka Semkova, et al.. (1989). Space radiation dosimetry with active detections for the scientific program of the second Bulgarian cosmonaut on board the MIR space station. Advances in Space Research. 9(10). 247–251. 39 indexed citations
20.
Čihák, A., R. Tykva, & F. Šorm. (1966). Incorporation of 5-azacytidine-4-[14C] and of cytidine-[3H] into ribonucleic acids of mouse Ehrlich ascites tumour cells. Collection of Czechoslovak Chemical Communications. 31(7). 3015–3019. 17 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

Breakdown of academic impact, for papers by I. Kuleff Breakdown of academic impact, for papers by James J. Leary Breakdown of academic impact, for papers by Shu Fujimaki Breakdown of academic impact, for papers by F. Horréard Breakdown of academic impact, for papers by S. Hayward Breakdown of academic impact, for papers by Youbao Wang Breakdown of academic impact, for papers by Steffen Uhlig Breakdown of academic impact, for papers by Heinrich Kaiser Breakdown of academic impact, for papers by Masanori Sato Breakdown of academic impact, for papers by Lucas Henrique Fantin
Rankless by CCL
2026