The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where H. A. Barker sits on this spectrum.
This scientist: 188 publications — 28th percentile
28% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 1,295 publications or more.
The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where H. A. Barker sits on this spectrum.
This scientist: 61 D-Index — 49th percentile
49% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 159 D-Index or more.
H. A. Barker spends much of his time researching Biochemistry, Cofactor, Clostridium kluyveri, Enzyme and Organic chemistry. As a member of one scientific family, he mostly works in the field of Biochemistry, focusing on Clostridium and, on occasion, Caproic Acid. His Cofactor research incorporates themes from Isolation, Cyanocobalamin, Stereochemistry and Benzimidazole.
His work carried out in the field of Stereochemistry brings together such families of science as Amino acid, Glutamic acid and Aspartic acid. The concepts of his Clostridium kluyveri study are interwoven with issues in Ethanol and Fatty acid synthesis. His work in the fields of Specific activity and Size-exclusion chromatography overlaps with other areas such as Lysine 2,3-aminomutase and Isonicotinic acid.
H. A. Barker mainly focuses on Biochemistry, Clostridium, Enzyme, Cofactor and Clostridium kluyveri. His research in Biochemistry intersects with topics in Methane and Cyanide. His Clostridium research focuses on subjects like Uric acid, which are linked to Bioinformatics.
His Enzyme study integrates concerns from other disciplines, such as Divalent and Sucrose. The study incorporates disciplines such as Mutase, Cyanocobalamin, Chromatography, Stereochemistry and Benzimidazole in addition to Cofactor. He combines subjects such as Ethanol, Caproic Acid, Butyrate, Fatty acid synthesis and Butyric acid with his study of Clostridium kluyveri.
The scientist’s investigation covers issues in Stereochemistry, Enzyme, Lysine, Metabolism and Biochemistry. His Stereochemistry research includes elements of Coenzyme B and Substrate. His Size-exclusion chromatography study in the realm of Enzyme interacts with subjects such as Coenzyme A.
His studies in Lysine integrate themes in fields like Chromatography, Elution and Ammonia. His work in Chromatography tackles topics such as Clostridium which are related to areas like Pyridoxal phosphate. His Acetyl-CoA study in the realm of Biochemistry connects with subjects such as Glutamate synthase.
His scientific interests lie mostly in Biochemistry, Substrate, Stereochemistry, Glutamate decarboxylase and Glutamate synthase. His Biochemistry research focuses on Acyl-CoA in particular. The study incorporates disciplines such as Mutase, Photochemistry, Hydrogen and Cofactor in addition to Substrate.
Many of his research projects under Stereochemistry are closely connected to Isomerization with Isomerization, tying the diverse disciplines of science together. His study in Glutamate decarboxylase is interdisciplinary in nature, drawing from both Amino acid, Glycine, Isomerase, Cysteine and Metabolism.
H.A. Barker;R.D. Smyth;H. Weissbach;J.I. Toohey
H. A. Barker;H. Weissbach;R. D. Smyth
E. R. Stadtman;H. A. Barker
Wolfgang Buckel;H. A. Barker
T.P. Chirpich;V. Zappia;R.N. Costilow;H.A. Barker
H.A. Barker;R.D. Smyth;H. Weissbach;Agnete Munch-Petersen
H.A. Barker;R.D. Smyth;R. Marilyn Wilson;H. Weissbach
Michael Doudoroff;H.A. Barker;W.Z. Hassid
H. A. Barker;A. M. Buswell
B.T. Bornstein;H.A. Barker
H. A. Barker;S. M. Taha
Thressa C. Stadtman;H. A. Barker
H. A. Barker;M. D. Kamen;B. T. Bornstein
H. A. Barker;M. D. Kamen
E R Stadtman;H A Barker
Martin J. Pine;H. A. Barker
H.A. Barker;V. Rooze;F. Suzuki;A.A. Iodice
H. A. Barker;J. V. Beck
H.A. Barker
J.I. Toohey;H.A. Barker
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