J Hahn

992 total citations
13 papers, 816 citations indexed

About

J Hahn is a scholar working on Molecular Biology, Genetics and Ecology. According to data from OpenAlex, J Hahn has authored 13 papers receiving a total of 816 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Molecular Biology, 9 papers in Genetics and 8 papers in Ecology. Recurrent topics in J Hahn's work include Bacterial Genetics and Biotechnology (9 papers), Bacteriophages and microbial interactions (8 papers) and RNA and protein synthesis mechanisms (3 papers). J Hahn is often cited by papers focused on Bacterial Genetics and Biotechnology (9 papers), Bacteriophages and microbial interactions (8 papers) and RNA and protein synthesis mechanisms (3 papers). J Hahn collaborates with scholars based in United States, Albania and Germany. J Hahn's co-authors include David Dubnau, Mark Albano, Manuela Roggiani, Joel R. Haynes, Bert Jan Haijema, Yvette Weinrauch, Flavia Piazza, Johan Bylund, M L Higgins and David H. Calhoun and has published in prestigious journals such as Journal of Hazardous Materials, Journal of Bacteriology and Molecular Microbiology.

In The Last Decade

J Hahn

13 papers receiving 728 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J Hahn United States	11	675	669	435	54	36	13	816
Mark Albano United States	10	697 1.0×	665 1.0×	450 1.0×	54 1.0×	50 1.4×	10	850
Michael S. Bartlett United States	12	843 1.2×	580 0.9×	242 0.6×	62 1.1×	47 1.3×	15	953
Janice Light Denmark	12	578 0.9×	534 0.8×	207 0.5×	48 0.9×	60 1.7×	13	733
Paulina Balbás Mexico	12	534 0.8×	295 0.4×	133 0.3×	36 0.7×	42 1.2×	17	645
Taryn B. Kiley United Kingdom	7	423 0.6×	285 0.4×	229 0.5×	34 0.6×	53 1.5×	8	520
Christopher D. A. Rodrigues United States	15	467 0.7×	388 0.6×	284 0.7×	53 1.0×	85 2.4×	29	692
D A Mullin United States	16	608 0.9×	595 0.9×	227 0.5×	25 0.5×	85 2.4×	22	765
Eric L. Flamm United States	7	514 0.8×	394 0.6×	224 0.5×	31 0.6×	120 3.3×	9	652
W S Reznikoff United States	14	759 1.1×	521 0.8×	208 0.5×	40 0.7×	95 2.6×	17	942
Fabien Gérard France	13	447 0.7×	373 0.6×	263 0.6×	38 0.7×	58 1.6×	16	615

Countries citing papers authored by J Hahn

Since Specialization

Citations

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

Fields of papers citing papers by J Hahn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J Hahn

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

All Works

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13 of 13 papers shown

Jasinski, Julia, et al.. (2023). Polystyrene microparticle distribution after ingestion by murine macrophages. Journal of Hazardous Materials. 457. 131796–131796. 11 indexed citations

Petereit, Daniel G., Amy Moser, J Hahn, et al.. (2010). Ataxia Telangiectasia Mutated (ATM) Gene Variants in American Indians. International Journal of Radiation Oncology*Biology*Physics. 78(3). S90–S90. 5 indexed citations

Haijema, Bert Jan, J Hahn, Joel R. Haynes, & David Dubnau. (2001). A ComGA‐dependent checkpoint limits growth during the escape from competence. Molecular Microbiology. 40(1). 52–64. 104 indexed citations

Hahn, J, et al.. (1996). Regulatory inputs for the synthesis of ComK, the competence transcription factor of Bacillus subtilis. Molecular Microbiology. 21(4). 763–775. 80 indexed citations

Hahn, J, et al.. (1995). Inactivation of mecA prevents recovery from the competent state and interferes with cell division and the partitioning of nucleoids in Bacillus subtilis. Molecular Microbiology. 18(4). 755–767. 37 indexed citations

Hahn, J, Manuela Roggiani, & David Dubnau. (1995). The major role of Spo0A in genetic competence is to downregulate abrB, an essential competence gene. Journal of Bacteriology. 177(12). 3601–3605. 65 indexed citations

Dubnau, David, J Hahn, Manuela Roggiani, Flavia Piazza, & Yvette Weinrauch. (1994). Two-component regulators and genetic competence in Bacillus subtilis. Research in Microbiology. 145(5-6). 403–411. 35 indexed citations

Hahn, J, et al.. (1994). The regulation of competence transcription factor synthesis constitutes a critical control point in the regulation of competence in Bacillus subtilis. Journal of Bacteriology. 176(18). 5753–5761. 84 indexed citations

Hahn, J & David Dubnau. (1991). Growth stage signal transduction and the requirements for srfA induction in development of competence. Journal of Bacteriology. 173(22). 7275–7282. 69 indexed citations

10.

Roggiani, Manuela, J Hahn, & David Dubnau. (1990). Suppression of early competence mutations in Bacillus subtilis by mec mutations. Journal of Bacteriology. 172(7). 4056–4063. 54 indexed citations

11.

Hahn, J, Mark Albano, & David Dubnau. (1987). Isolation and characterization of Tn917lac-generated competence mutants of Bacillus subtilis. Journal of Bacteriology. 169(7). 3104–3109. 81 indexed citations

12.

Albano, Mark, J Hahn, & David Dubnau. (1987). Expression of competence genes in Bacillus subtilis. Journal of Bacteriology. 169(7). 3110–3117. 183 indexed citations

13.

Hahn, J & David H. Calhoun. (1978). Suppressors of a genetic regulatory mutation affecting isoleucine-valine biosynthesis in Escherichia coli K-12. Journal of Bacteriology. 136(1). 117–124. 8 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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