Patrick J. Callahan

960 total citations
22 papers, 759 citations indexed

About

Patrick J. Callahan is a scholar working on Biomedical Engineering, Health, Toxicology and Mutagenesis and Geometry and Topology. According to data from OpenAlex, Patrick J. Callahan has authored 22 papers receiving a total of 759 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Biomedical Engineering, 6 papers in Health, Toxicology and Mutagenesis and 4 papers in Geometry and Topology. Recurrent topics in Patrick J. Callahan's work include Advanced Chemical Sensor Technologies (7 papers), Geometric and Algebraic Topology (4 papers) and Indoor Air Quality and Microbial Exposure (3 papers). Patrick J. Callahan is often cited by papers focused on Advanced Chemical Sensor Technologies (7 papers), Geometric and Algebraic Topology (4 papers) and Indoor Air Quality and Microbial Exposure (3 papers). Patrick J. Callahan collaborates with scholars based in United States. Patrick J. Callahan's co-authors include Sydney M. Gordon, Jane C. Chuang, Marielle C. Brinkman, Nancy K. Wilson, Donald V. Kenny, Christopher Lyu, Lance Wallace, Robert G. Lewis, Joachim D. Pleil and Thomas J. Kelly and has published in prestigious journals such as Environmental Science & Technology, Environmental Health Perspectives and Epidemiology.

In The Last Decade

Patrick J. Callahan

21 papers receiving 701 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Patrick J. Callahan United States	12	474	150	119	101	71	22	759
Michel Guillemin Switzerland	18	532 1.1×	76 0.5×	206 1.7×	45 0.4×	74 1.0×	62	958
E. Jermann Germany	13	503 1.1×	125 0.8×	63 0.5×	51 0.5×	49 0.7×	27	670
M.R. Guerin United States	15	326 0.7×	97 0.6×	226 1.9×	136 1.3×	20 0.3×	62	752
Larry C. Michael United States	12	280 0.6×	69 0.5×	67 0.6×	42 0.4×	30 0.4×	13	447
Donald A. Whitaker United States	15	339 0.7×	76 0.5×	56 0.5×	31 0.3×	94 1.3×	21	530
F. Merli Italy	12	301 0.6×	41 0.3×	72 0.6×	95 0.9×	64 0.9×	19	554
Paal Molander Norway	23	518 1.1×	366 2.4×	94 0.8×	454 4.5×	110 1.5×	52	1.2k
Vincenzo Cocheo Italy	11	259 0.5×	91 0.6×	95 0.8×	36 0.4×	62 0.9×	22	443
Lena Dubois Belgium	15	166 0.4×	252 1.7×	35 0.3×	254 2.5×	56 0.8×	48	720
Dawit Z. Bezabeh United States	10	275 0.6×	39 0.3×	48 0.4×	109 1.1×	127 1.8×	14	478

Countries citing papers authored by Patrick J. Callahan

Since Specialization

Citations

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

Fields of papers citing papers by Patrick J. Callahan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Patrick J. Callahan

This figure shows the co-authorship network connecting the top 25 collaborators of Patrick J. Callahan. A scholar is included among the top collaborators of Patrick J. Callahan 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 Patrick J. Callahan. Patrick J. Callahan 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

Gordon, Sydney M., Lance Wallace, Marielle C. Brinkman, Patrick J. Callahan, & Donald V. Kenny. (2002). Volatile organic compounds as breath biomarkers for active and passive smoking.. Environmental Health Perspectives. 110(7). 689–698. 113 indexed citations

Thrall, Karla D., et al.. (2001). Design and Evaluation of a Breath-Analysis System for Biological Monitoring of Volatile Compounds. PubMed. 62(1). 28–35. 9 indexed citations

Chuang, Jane C., Patrick J. Callahan, Christopher Lyu, & Nancy K. Wilson. (1999). Polycyclic aromatic hydrocarbon exposures of children in low-income families1. Journal of Exposure Science & Environmental Epidemiology. 9(2). 85–98. 154 indexed citations

Gordon, Sydney M., et al.. (1999). Real-Time Breath Analysis of Vapor Phase Uptake of 1,1,1 Trichloroethane Through the Forearm: Implications for Daily Absorbed Dose of Volatile Organic Compounds at Work. Applied Occupational and Environmental Hygiene. 14(11). 719–727. 4 indexed citations

Gordon, Sydney M., Patrick J. Callahan, Marcia Nishioka, et al.. (1999). Residential environmental measurements in the National Human Exposure Assessment Survey (NHEXAS) pilot study in Arizona: preliminary results for pesticides and VOCs. Journal of Exposure Science & Environmental Epidemiology. 9(5). 456–470. 112 indexed citations

Callahan, Patrick J., Martin Hildebrand, & Jeffrey R. Weeks. (1999). A census of cusped hyperbolic 3-manifolds With microfiche supplement. 68. 321–332. 4 indexed citations

Callahan, Patrick J., John Dean, & Jeffrey R. Weeks. (1999). THE SIMPLEST HYPERBOLIC KNOTS. Journal of Knot Theory and Its Ramifications. 8(3). 279–297. 34 indexed citations

Gordon, Sydney M., Lance Wallace, Patrick J. Callahan, Donald V. Kenny, & Marielle C. Brinkman. (1998). Effect of water temperature on dermal exposure to chloroform.. Environmental Health Perspectives. 106(6). 337–345. 51 indexed citations

Callahan, Patrick J.. (1997). Symmetric surgery on asymmetric knots. Mathematische Annalen. 308(1). 1–4. 1 indexed citations

10.

Gordon, Sydney M., Patrick J. Callahan, Donald V. Kenny, & Joachim D. Pleil. (1996). Direct Sampling and Analysis of Volatile Organic Compounds in Air by Membrane Introduction and Glow Discharge Ion Trap Mass Spectrometry with Filtered Noise Fields. Rapid Communications in Mass Spectrometry. 10(9). 1038–1046. 28 indexed citations

11.

Gordon, Sydney M., Patrick J. Callahan, Donald V. Kenny, & Joachim D. Pleil. (1995). Direct trace analysis of volatile organic compounds in air using ion trap mass spectrometers with filtered noise fields. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 4 indexed citations

12.

Chuang, Jane C., Patrick J. Callahan, R. G. Menton, et al.. (1995). Monitoring Methods for Polycyclic Aromatic Hydrocarbons and Their Distribution in House Dust and Track-in Soil. Environmental Science & Technology. 29(2). 494–500. 68 indexed citations

13.

Chuang, Jane C., et al.. (1995). 129 EVALUATION OF METHODS FOR MONITORING EXPOSURE TO POLYCYCLIC AROMATIC HYDROCARBONS AMONG CHILDREN FROM LOW INCOME FAMILIES. Epidemiology. 6(2). S29–S29. 1 indexed citations

14.

Chuang, Jane C., et al.. (1993). Development and evaluation of monitoring methods for polycyclic aromatic hydrocarbons in house dust and track-in soil. Final report, June 1992-September 1993. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 2 indexed citations

15.

Kenny, Donald V., et al.. (1993). Simultaneous isolation of two different m / z ions in an ion‐trap mass spectrometer and their tandem mass spectra using filtered‐noise fields. Rapid Communications in Mass Spectrometry. 7(12). 1086–1089. 19 indexed citations

16.

Kelly, Thomas J., Patrick J. Callahan, Joachim D. Pleil, & Gary F. Evans. (1993). Method development and field measurements for polar volatile organic compounds in ambient air. Environmental Science & Technology. 27(6). 1146–1153. 63 indexed citations

17.

Coutant, Robert W., Patrick J. Callahan, Jane C. Chuang, & Robert G. Lewis. (1992). Efficiency of silicone-grease-coated denuders for collection of polynuclear aromatic hydrocarbons. Atmospheric Environment Part A General Topics. 26(15). 2831–2834. 23 indexed citations

18.

Coutant, Robert W., Patrick J. Callahan, Michael R. Kuhlman, & Robert G. Lewis. (1989). Design and performance of a high-volume compound annular denuder. Atmospheric Environment (1967). 23(10). 2205–2211. 42 indexed citations

19.

Callahan, Patrick J., et al.. (1988). APPLICATION OF A GENERAL PURPOSE CAD SYSTEM IN THE DDG‐51 DESIGN PROCESS. Naval Engineers Journal. 100(3). 265–274. 3 indexed citations

20.

Callahan, Patrick J.. (1972). Frankenstein , Bacon, and the ‘Two Truths’. Extrapolation. 14(1). 39–48. 3 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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