William N. Howald

3.4k total citations
50 papers, 2.9k citations indexed

About

William N. Howald is a scholar working on Molecular Biology, Spectroscopy and Pharmacology. According to data from OpenAlex, William N. Howald has authored 50 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Molecular Biology, 16 papers in Spectroscopy and 13 papers in Pharmacology. Recurrent topics in William N. Howald's work include Analytical Chemistry and Chromatography (12 papers), Pharmacogenetics and Drug Metabolism (11 papers) and Mass Spectrometry Techniques and Applications (8 papers). William N. Howald is often cited by papers focused on Analytical Chemistry and Chromatography (12 papers), Pharmacogenetics and Drug Metabolism (11 papers) and Mass Spectrometry Techniques and Applications (8 papers). William N. Howald collaborates with scholars based in United States, South Africa and Finland. William N. Howald's co-authors include Thomas A. Baillie, Richard P. Darveau, Stephen R. Coats, Robert A. Reife, Albert W. Rettenmeier, Allan E. Rettie, Thomas F. Kalhorn, Adeline M. Hajjar, Brian W. Bainbridge and Sing Sing Way and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of Clinical Investigation.

In The Last Decade

William N. Howald

50 papers receiving 2.7k citations

Peers

Countries citing papers authored by William N. Howald

Since Specialization

Citations

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

Fields of papers citing papers by William N. Howald

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by William N. Howald. 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 William N. Howald. The network helps show where William N. Howald may publish in the future.

Co-authorship network of co-authors of William N. Howald

This figure shows the co-authorship network connecting the top 25 collaborators of William N. Howald. A scholar is included among the top collaborators of William N. Howald 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 William N. Howald. William N. Howald 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

#	Work	Indexed citations
1	A NAD(P) reductase like protein is the salicylic acid receptor in the appendix of theSauromatum guttatuminflorescence 2013 ·PubMed ·Hanna Skubatz, Mónica V. Orellana, William N. Howald	2
2	Human Ortholog of a Plant Salicylic Acid Receptor Found in SK-N-SH Cell Line 2013 ·The Protein Journal ·Hanna Skubatz, William N. Howald	1
3	Pharmacokinetics of valerenic acid after single and multiple doses of valerian in older women 2010 ·Phytotherapy Research ·Gail D. Anderson, Gary W. Elmer, Diana M. Taibi, Michael V. Vitiello, Eric D. Kantor, Thomas F. Kalhorn, William N. Howald, (unknown), Carol A. Landis	15
4	Analysis of testosterone and dihydrotestosterone from biological fluids as the oxime derivatives using high‐performance liquid chromatography/tandem mass spectrometry 2007 ·Rapid Communications in Mass Spectrometry ·Thomas F. Kalhorn, Stephanie T. Page, William N. Howald, Elahe A. Mostaghel, Peter S. Nelson	83
5	Rapid quantitation of cyclophosphamide metabolites in plasma by liquid chromatography–mass spectrometry 2006 ·Journal of Chromatography B ·Thomas F. Kalhorn, William N. Howald, (unknown), Brian Phillips, Joanne Wang, John T. Slattery, Jeannine S. McCune	36
6	QUANTITATIVE CONTRIBUTION OF CYP2D6 AND CYP3A TO OXYCODONE METABOLISM IN HUMAN LIVER AND INTESTINAL MICROSOMES 2004 ·Drug Metabolism and Disposition ·Bojan Lalovic, Brian Phillips, (unknown), William N. Howald, Danny D. Shen	207
7	Validation of a soy food-frequency questionnaire and evaluation of correlates of plasma isoflavone concentrations in postmenopausal women 2003 ·American Journal of Clinical Nutrition ·Cara L. Frankenfeld, Ruth E. Patterson, Neilann K. Horner, Marian L. Neuhouser, Heather Skor, Thomas F. Kalhorn, William N. Howald, Johanna W. Lampe	77
8	Validation of a soy food frequency questionnaire with plasma concentrations of isoflavones in US adults 2002 ·Journal of the American Dietetic Association ·Cara L. Frankenfeld, Ruth E. Patterson, Thomas F. Kalhorn, Heather Skor, William N. Howald, Johanna W. Lampe	48
9	Trichloroethylene oxidative metabolism in plants: the trichloroethanol pathway 2001 ·Phytochemistry ·Tanya Q. Shang, Sharon Doty, Angela Wilson, William N. Howald, Milton P. Gordon	41
10	Wheat Bran and Soy Protein Feeding Do Not Alter Urinary Excretion of the Isoflavan Equol in Premenopausal Women 2001 ·Journal of Nutrition ·Johanna W. Lampe, Heather Skor, Sue Li, Kristiina Wähälä, William N. Howald, Chu Chen	96
11	Identification of the Lipophilic Factor Produced by Macrophages That Stimulates Steroidogenesis* 2000 ·Endocrinology ·W. David Nes, Yevgeniya Lukyanenko, (unknown), Stéphane Quideau, William N. Howald, (unknown), Robert R. West, James C. Hutson	82
12	Analysis of cyclophosphamide and five metabolites from human plasma using liquid chromatography–mass spectrometry and gas chromatography–nitrogen–phosphorus detection 1999 ·Journal of Chromatography B Biomedical Sciences and Applications ·Thomas F. Kalhorn, Song Ren, William N. Howald, Ross F. Lawrence, John T. Slattery	37
13	Subnanomolar quantification of caffeine's in vitro metabolites by stable isotope dilution gas chromatography–mass spectrometry 1998 ·Journal of Chromatography B Biomedical Sciences and Applications ·Kelly Regal, William N. Howald, (unknown), Carlos A. Gartner, Kent L. Kunze, Sidney D. Nelson	19
14	TheSauromatum guttatumappendix as an osmophore: excretory pathways, composition of volatiles and attractiveness to insects 1996 ·New Phytologist ·Hanna Skubatz, Dennis D. Kunkel, William N. Howald, (unknown), Braja D. Mookherjee	58
15	Oleic Acid and Its Positional Isomer, cis-Vaccinic Acid, in the Appendix of Sauromatum guttatum during Anthesis 1995 ·PLANT PHYSIOLOGY ·Hanna Skubatz, (unknown), Bradley S. Moore, William N. Howald, (unknown), (unknown)	4
16	Application of negative-ion chemical ionization isotope dilution gas chromatography—mass spectrometry to single-dose bioavailability studies of mefloquine 1994 ·Journal of Chromatography B Biomedical Sciences and Applications ·(unknown), William N. Howald, Kent L. Kunze, Ross F. Lawrence, W. Trager	7
17	S-Oxidative Cleavage of Farnesylcysteine and Farnesylcysteine Methyl Ester by the Flavin-Containing Monooxygenase 1994 ·Chemical Research in Toxicology ·(unknown), William N. Howald, John R. Cashman	20
18	The use of mass spectrometry in the study of chemically-reactive drug metabolises. Application of MS/MS and LC/MS to the analysis of glutathione- and related S-linked conjugates of N-methylformamide 1989 ·Journal of Pharmaceutical and Biomedical Analysis ·Thomas A. Baillie, Paul G. Pearson, Mohamed S. Rashed, William N. Howald	28
19	Quantitative metabolic profiling of valproic acid in humans using automated gas chromatographic/mass spectrometric techniques 1989 ·Journal of Mass Spectrometry ·Albert W. Rettenmeier, William N. Howald, René H. Levy, (unknown), W. Perry Gordon, David J. Porubek, Thomas A. Baillie	41
20	Application of thermospray liquid chromatography—mass spectrometry to the simultaneous quantification of tracer concentrations of isotopically labelled carbamazepine epoxide and steady-state levels of carbamazepine and carbamazepine epoxide 1989 ·Journal of Chromatography A ·(unknown), Mohamed S. Rashed, Thomas F. Kalhorn, René H. Levy, William N. Howald	9

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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