R A Jacob

2.5k total citations · 1 hit paper
34 papers, 1.9k citations indexed

About

R A Jacob is a scholar working on Nutrition and Dietetics, Physiology and Pharmaceutical Science. According to data from OpenAlex, R A Jacob has authored 34 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Nutrition and Dietetics, 6 papers in Physiology and 4 papers in Pharmaceutical Science. Recurrent topics in R A Jacob's work include Trace Elements in Health (5 papers), Oral microbiology and periodontitis research (4 papers) and Fluorine in Organic Chemistry (4 papers). R A Jacob is often cited by papers focused on Trace Elements in Health (5 papers), Oral microbiology and periodontitis research (4 papers) and Fluorine in Organic Chemistry (4 papers). R A Jacob collaborates with scholars based in United States, India and Canada. R A Jacob's co-authors include Noel W. Solomons, César G. Fraga, B N Ames, Harold J. Helbock, Paul A. Motchnik, Mark K. Shigenaga, H H Sandstead, J.H. Skala, S.T. Omaye and Leslie M. Klevay and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and American Journal of Clinical Nutrition.

In The Last Decade

R A Jacob

34 papers receiving 1.7k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Ascorbic acid protects against endogenous oxidative DNA damage in human sperm.

1991 577 citations César G. Fraga, Paul A. Motchnik et al. Proceedings of the National Academy of Sciences profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
R A Jacob	875	380	280	229	220	34	1.9k
Jacqueline M. O’Connor	787 0.9×	275 0.7×	74 0.3×	431 1.9×	144 0.7×	66	2.4k
Rosemary L. Schleicher	1.5k 1.7×	747 2.0×	83 0.3×	530 2.3×	465 2.1×	71	4.5k
Alceu Afonso Jordão	469 0.5×	325 0.9×	185 0.7×	65 0.3×	70 0.3×	161	2.7k
Afrozul Haq	584 0.7×	347 0.9×	136 0.5×	157 0.7×	73 0.3×	55	2.2k
Anna Maria Witkowska	312 0.4×	509 1.3×	122 0.4×	57 0.2×	319 1.4×	93	2.8k
Recep Saraymen	286 0.3×	152 0.4×	61 0.2×	225 1.0×	101 0.5×	81	1.5k
Frances W.J. Beck	2.0k 2.3×	192 0.5×	45 0.2×	771 3.4×	340 1.5×	63	3.4k
Richard S. Rivlin	485 0.6×	224 0.6×	29 0.1×	77 0.3×	673 3.1×	96	2.6k
Marilza Vieira Cunha Rudge	287 0.3×	777 2.0×	84 0.3×	219 1.0×	188 0.9×	244	4.1k
Rajendra Prasad	481 0.5×	409 1.1×	67 0.2×	293 1.3×	216 1.0×	150	2.4k

Countries citing papers authored by R A Jacob

Since Specialization

Citations

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

Fields of papers citing papers by R A Jacob

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R A Jacob

This figure shows the co-authorship network connecting the top 25 collaborators of R A Jacob. A scholar is included among the top collaborators of R A Jacob 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 R A Jacob. R A Jacob 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

Chan, Donovan, Serge McGraw, Kathleen Klein, et al.. (2016). Stability of the human sperm DNA methylome to folic acid fortification and short-term supplementation. Human Reproduction. 32(2). 272–283. 20 indexed citations

Fraga, César G., Paul A. Motchnik, Mark K. Shigenaga, et al.. (1991). Ascorbic acid protects against endogenous oxidative DNA damage in human sperm.. Proceedings of the National Academy of Sciences. 88(24). 11003–11006. 577 indexed citations breakdown →

Jacob, R A, J.H. Skala, & S.T. Omaye. (1987). Biochemical indices of human vitamin C status. American Journal of Clinical Nutrition. 46(5). 818–826. 96 indexed citations

Jacques, Paul F., S C Hartz, R B McGandy, R A Jacob, & Robert M. Russell. (1987). Ascorbic acid, HDL, and total plasma cholesterol in the elderly.. Journal of the American College of Nutrition. 6(2). 169–174. 32 indexed citations

Leggott, Penelope J., et al.. (1986). The Effect of Controlled Ascorbic Acid Depletion and Supplementation on Periodontal Health. Journal of Periodontology. 57(8). 480–485. 63 indexed citations

Jacob, R A & N.T. Gorman. (1983). Automated rate-immunonephelometric determination of serum prealbumin (transthyretin).. Clinical Chemistry. 29(3). 564–566. 7 indexed citations

Solomons, NW, C. Rieger, R A Jacob, et al.. (1981). Some biochemical indices of nutrition in treated cystic fibrosis patients. American Journal of Clinical Nutrition. 34(4). 462–474. 49 indexed citations

Solomons, Noel W. & R A Jacob. (1981). Studies on the bioavailability of zinc in humans: effects of heme and nonheme iron on the absorption of zinc. American Journal of Clinical Nutrition. 34(4). 475–482. 264 indexed citations

Hill, P G, et al.. (1981). One-hour serum xylose as an absorption test in the tropics.. Journal of Clinical Pathology. 34(2). 174–178. 4 indexed citations

10.

Jacob, R A, H H Sandstead, Juan Manuel Muñoz, Leslie M. Klevay, & David Milne. (1981). Whole body surface loss of trace metals in normal males. American Journal of Clinical Nutrition. 34(7). 1379–1383. 86 indexed citations

11.

Klevay, Leslie M., et al.. (1980). The human requirement for copper I. Healthy men fed conventional, American diets. American Journal of Clinical Nutrition. 33(1). 45–50. 59 indexed citations

12.

Jacob, R A, et al.. (1979). Reaction of plasma-generated trifluoromethyl radicals with carbon tetraiodide and with bromobenzene; a new synthesis for trifluoromethyl organic compounds. Journal of the Chemical Society Chemical Communications. 128–128. 3 indexed citations

13.

Dintzis, F. R., F. L. Baker, George E. Inglett, et al.. (1979). Human gastrointestinal action on wheat, corn, and soy hull bran--preliminary findings. 19 indexed citations

14.

Solomons, Noel W., R A Jacob, Oscar Pineda, & F. Viteri. (1979). Studies on the bioavailability of zinc in man. II. Absorption of zinc from organic and inorganic sources.. PubMed. 94(2). 335–43. 51 indexed citations

15.

Sandstead, H H, et al.. (1978). Zinc deficiency in pregnant rhesus monkeys: effects on behavior of infants. American Journal of Clinical Nutrition. 31(5). 844–849. 57 indexed citations

16.

Sandstead, H H, et al.. (1977). Zinc deficiency: Effects on brain and behavior of rats and Rhesus monkeys. Teratology. 16(2). 229–234. 34 indexed citations

17.

Arthur, Samuel D., R A Jacob, & R. J. LAGOW. (1973). Direct fluorination of alkali metal hexahydroaluminates and amides. Journal of Inorganic and Nuclear Chemistry. 35(10). 3435–3437. 1 indexed citations

18.

Baker, Simon, et al.. (1968). Adrenal function in tropical sprue.. PubMed. 56(5). 686–700. 1 indexed citations

19.

Jacob, R A, et al.. (1965). THE UTILIZATION OF INTRAVENOUSLY ADMINISTERED GLUCOSE IN TROPICAL SPRUE.. PubMed. 28. 259–63. 2 indexed citations

20.

Jacob, R A, et al.. (1965). The stomach in tropical sprue.. Gut. 6(5). 458–465. 31 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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