James K. Koehler

3.0k total citations
67 papers, 2.4k citations indexed

About

James K. Koehler is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Molecular Biology. According to data from OpenAlex, James K. Koehler has authored 67 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Reproductive Medicine, 25 papers in Public Health, Environmental and Occupational Health and 14 papers in Molecular Biology. Recurrent topics in James K. Koehler's work include Sperm and Testicular Function (30 papers), Reproductive Biology and Fertility (25 papers) and Reproductive biology and impacts on aquatic species (11 papers). James K. Koehler is often cited by papers focused on Sperm and Testicular Function (30 papers), Reproductive Biology and Fertility (25 papers) and Reproductive biology and impacts on aquatic species (11 papers). James K. Koehler collaborates with scholars based in United States and Switzerland. James K. Koehler's co-authors include Timothy K. Maugel, Bo van Deurs, David Lagunoff, E Y, William H. Kinsey, Lawrence Corey, Martin A. Schwarz, Roger A. Williamson, Michael Tucker and David Battaglia and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

James K. Koehler

67 papers receiving 2.2k citations

Peers

James K. Koehler

PHEOH

GENET

PHYSI

Jeffrey Pudney United States

Boris Baibakov United States

Ashley I. Yudin United States

B. Baccetti Italy

H.T. Meryman United States

Ralph B. L. Gwatkin United States

Michael G. O’Rand United States

Jeffrey D. Bleil United States

Soichi Watanabe Japan

Yoshihiro Hayashi Japan

Jeffrey Pudney United States

James K. Koehler

625 ×0.6

378 ×0.5

PHEOH

525 ×0.7

407 ×1.5

GENET

336 ×1.5

PHYSI

Citations per year, relative to James K. Koehler James K. Koehler (= 1×) peers Jeffrey Pudney

Countries citing papers authored by James K. Koehler

Since Specialization

Citations

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

Fields of papers citing papers by James K. Koehler

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James K. Koehler. 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 James K. Koehler. The network helps show where James K. Koehler may publish in the future.

Co-authorship network of co-authors of James K. Koehler

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

All Works

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20 of 20 papers shown

Feldman, Ronald A., Diana F. Tomback, & James K. Koehler. (1999). Cost of Mutualism: Competition, Tree Morphology, and Pollen Production in Limber Pine Clusters. Ecology. 80(1). 324–324. 3 indexed citations

Koehler, James K., et al.. (1998). Semen parameters and electron microscope observations of spermatozoa of the red wolf, Canis rufus. Reproduction. 114(1). 95–101. 18 indexed citations

Battaglia, David, et al.. (1997). Failure of oocyte activation after intracytoplasmic sperm injection using round-headed sperm. Fertility and Sterility. 68(1). 118–122. 109 indexed citations

Kazazi, F, James K. Koehler, & Seymour J. Klebanoff. (1996). Activation of the HIV long terminal repeat and viral production by H2O2-vanadate. Free Radical Biology and Medicine. 20(6). 813–820. 14 indexed citations

Koehler, James K., et al.. (1994). Spermophagy in semen in the red wolf, Canis rufus. Molecular Reproduction and Development. 37(4). 457–461. 5 indexed citations

Frumkin, Lyn R., Michael B. Agy, Robert W. Coombs, et al.. (1993). Acute Infection of Macaca nemestrina by Human Immunodeficiency Virus Type 1. Virology. 195(2). 422–431. 36 indexed citations

Agy, Michael B., Lyn R. Frumkin, Lawrence Corey, et al.. (1992). Infection of Macaca nemestrina by Human Immunodeficiency Virus Type-1. Science. 257(5066). 103–106. 146 indexed citations

Krieger, John N., Robert W. Coombs, Ann C. Collier, et al.. (1991). Fertility Parameters in Men Infected with Human Immunodeficiency Virus. The Journal of Infectious Diseases. 164(3). 464–469. 67 indexed citations

Clark, Judy & James K. Koehler. (1990). Observations of hamster sperm‐egg fusion in freeze‐fracture replicas including the use of filipin as a sterol marker. Molecular Reproduction and Development. 27(4). 351–365. 10 indexed citations

10.

Clark, Judy & James K. Koehler. (1988). Does phospholipase C inhibit fusion between hamster sperm and zona‐free eggs?. Gamete Research. 19(4). 339–348. 3 indexed citations

11.

Koehler, James K., et al.. (1987). Phagocytosis of yeast by human oocytes: Fine structural observations. Gamete Research. 17(3). 237–244. 4 indexed citations

12.

Koehler, James K.. (1985). Gamete surfaces and their interactions. 5 indexed citations

13.

Williamson, Roger A., et al.. (1984). Ultrastructural sperm tail defects associated with sperm immotility. Fertility and Sterility. 41(1). 103–107. 32 indexed citations

14.

Koehler, James K.. (1981). Surface alterations during the capacitation of mammalian spermatozoa. American Journal of Primatology. 1(2). 131–141. 25 indexed citations

15.

Koehler, James K.. (1978). The Mammalian Sperm Surface: Studies with Specific Labeling Techniques. International review of cytology. 54. 73–108. 85 indexed citations

16.

Koehler, James K.. (1978). Specific ultrastructural probes. Springer eBooks. 4 indexed citations

17.

Koehler, James K.. (1977). Fine structure of spermatozoa of the Asiatic musk shrew, Suncus murinus. American Journal of Anatomy. 149(2). 135–151. 20 indexed citations

18.

Koehler, James K.. (1972). Human sperm head ultrastructure: A freeze-etching study. Journal of Ultrastructure Research. 39(5-6). 520–539. 65 indexed citations

19.

Koehler, James K.. (1967). Studies on the survival of the rotifer philodina after freezing and thawing. Cryobiology. 3(5). 392–399. 12 indexed citations

20.

Koehler, James K.. (1965). A fine-structure study of the Rotifer integument. Journal of Ultrastructure Research. 12(1-2). 113–134. 42 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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