James A. Happe

979 total citations
24 papers, 762 citations indexed

About

James A. Happe is a scholar working on Organic Chemistry, Spectroscopy and Molecular Biology. According to data from OpenAlex, James A. Happe has authored 24 papers receiving a total of 762 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Organic Chemistry, 5 papers in Spectroscopy and 4 papers in Molecular Biology. Recurrent topics in James A. Happe's work include Advanced NMR Techniques and Applications (3 papers), Porphyrin Metabolism and Disorders (2 papers) and Carcinogens and Genotoxicity Assessment (2 papers). James A. Happe is often cited by papers focused on Advanced NMR Techniques and Applications (3 papers), Porphyrin Metabolism and Disorders (2 papers) and Carcinogens and Genotoxicity Assessment (2 papers). James A. Happe collaborates with scholars based in United States and Sweden. James A. Happe's co-authors include Raymond L. Ward, Alan K. Burnham, Mark G. Knize, James S. Felton, Nancy H. Shen, P.R. Lewis, Brian D. Andresen, F.T. Hatch, Manuel F. Morales and Donald W. Moore and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Chemical Physics and The Journal of Physical Chemistry.

In The Last Decade

James A. Happe

22 papers receiving 690 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James A. Happe United States 13 206 195 144 138 109 24 762
M. Duquesne France 15 93 0.5× 233 1.2× 89 0.6× 64 0.5× 36 0.3× 31 539
Paul A. Edwards United Kingdom 17 43 0.2× 225 1.2× 126 0.9× 225 1.6× 60 0.6× 40 1.1k
Tristan Rawling Australia 22 124 0.6× 432 2.2× 129 0.9× 133 1.0× 175 1.6× 72 1.2k
Xiaodong Bu United States 20 120 0.6× 572 2.9× 320 2.2× 270 2.0× 115 1.1× 56 1.4k
Dieter W. Gruenwedel United States 16 23 0.1× 482 2.5× 105 0.7× 71 0.5× 121 1.1× 46 877
R. G. Bryant United States 11 27 0.1× 326 1.7× 173 1.2× 123 0.9× 46 0.4× 23 1.1k
Ole Lamm 19 19 0.1× 247 1.3× 142 1.0× 261 1.9× 102 0.9× 72 1.2k
Brian C. Challis United Kingdom 15 63 0.3× 199 1.0× 96 0.7× 294 2.1× 20 0.2× 81 908
David P. Kelly Australia 20 53 0.3× 168 0.9× 243 1.7× 538 3.9× 42 0.4× 82 1.2k
C. W. BIRD United Kingdom 16 19 0.1× 268 1.4× 105 0.7× 996 7.2× 45 0.4× 90 1.4k

Countries citing papers authored by James A. Happe

Since Specialization
Citations

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

Fields of papers citing papers by James A. Happe

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James A. Happe

This figure shows the co-authorship network connecting the top 25 collaborators of James A. Happe. A scholar is included among the top collaborators of James A. Happe 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 A. Happe. James A. Happe 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.
Buonarati, Michael H., et al.. (1992). Metabolism of 2-amino-1-methyl-6-phenylimidazo(4, 5-b)pyridine (PHIP) in mice. Carcinogenesis. 13(4). 621–627. 26 indexed citations
2.
Hopmans, Ellen C., et al.. (1991). The identification of a new heterocyclic amine mutagen from a heated mixture of creatine, glutamic acid and glucose. Mutation Research/Genetic Toxicology. 260(4). 313–319. 17 indexed citations
3.
Knize, Mark G., Tore Midtvedt, Kenneth W. Turteltaub, et al.. (1989). The metabolism of 4,8-DiMeIQx in conventional and germ-free rats. Carcinogenesis. 10(8). 1479–1484. 14 indexed citations
4.
Knize, Mark G., James A. Happe, Susan K. Healy, & James S. Felton. (1987). Identification of the mutagenic quinoxaline isomers from fried ground beef. Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. 178(1). 25–32. 13 indexed citations
5.
Felton, James S., Mark G. Knize, Nancy H. Shen, et al.. (1986). The isolation and identification of a new mutagen from fried ground beef: 2-amino-l-methyl-6-phenylimidazo[4, 5-b]pyridine (PhIP). Carcinogenesis. 7(7). 1081–1086. 251 indexed citations
6.
Burnham, Alan K. & James A. Happe. (1984). On the mechanism of kerogen pyrolysis. Fuel. 63(10). 1353–1356. 87 indexed citations
7.
Burnham, Alan K., et al.. (1980). Shale oil cracking. 2. Effect on oil composition. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 7 indexed citations
8.
Happe, James A. & Robyn L. Ward. (1979). Chlorine-35 nuclear magnetic resonance study of zinc-nucleotide triphosphate complexes. The Journal of Physical Chemistry. 83(26). 3457–3462. 1 indexed citations
9.
Taylor, Robert T., James A. Happe, & Rebekah W. Wu. (1978). Methylcobalamin methylation of chloroplatinate: Bound chloride, valence state, and relative mutagenicity. Journal of Environmental Science and Health Part A Environmental Science and Engineering. 13(9). 707–723. 6 indexed citations
10.
Happe, James A.. (1973). Probe of chelated zinc(II) environments using chlorine-35 nuclear magnetic resonance. Journal of the American Chemical Society. 95(19). 6232–6237. 8 indexed citations
11.
Ward, Raymond L. & James A. Happe. (1971). 35Cl NMR studies of the active site zinc of horse liver alcohol dehydrongenase. Biochemical and Biophysical Research Communications. 45(6). 1444–1450. 17 indexed citations
12.
Happe, James A. & Raymond L. Ward. (1969). Chlorine-35 nuclear magnetic resonance study of zinc nucleotide diphosphate complexes. Journal of the American Chemical Society. 91(17). 4906–4912. 14 indexed citations
13.
Ward, Raymond L. & James A. Happe. (1967). 35 C1 NMR studies of zinc adenosine diphosphate complexes. Biochemical and Biophysical Research Communications. 28(5). 785–790. 12 indexed citations
14.
Happe, James A. & Manuel F. Morales. (1966). Nitrogen-15 Nuclear Magnetic Resonance Evidence That Mg2+ Does Not Complex with Nitrogen Atoms of Adenosine Triphosphate. Journal of the American Chemical Society. 88(9). 2077–2078. 51 indexed citations
15.
Happe, James A. & Raymond L. Ward. (1963). Isotropic NMR Shifts in Pyridine-Type Bases Complexed with Paramagnetic NiII and CoII Acetylacetonates. The Journal of Chemical Physics. 39(5). 1211–1218. 106 indexed citations
16.
Happe, James A.. (1961). DOUBLE RESONANCE STUDY OF PYRROLE AND OF THE PYRROLE—PYRIDINE INTERACTION. The Journal of Physical Chemistry. 65(1). 72–76. 47 indexed citations
17.
Moore, Donald W. & James A. Happe. (1961). THE PROTON MAGNETIC RESONANCE SPECTRA OF SOME METAL VINYL COMPOUNDS. The Journal of Physical Chemistry. 65(2). 224–229. 38 indexed citations
18.
Happe, James A. & A. Greenville Whittaker. (1959). Proton Resonance Shifts for the Systems HNO3–H2O and HNO3–KNO3. The Journal of Chemical Physics. 30(2). 417–421. 2 indexed citations
19.
Cordes, Herman F., et al.. (1958). The Thermal Decomposition of Liquid Nitric Acid. II1. Journal of the American Chemical Society. 80(18). 4802–4808. 6 indexed citations
20.
Happe, James A. & Don S. Martin. (1955). Isotopic Exchange of Manganese during the Reaction between Manganese(II) and Permanganate1,2. Journal of the American Chemical Society. 77(16). 4212–4217.

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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