World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
57
Citations
11240
World Ranking
13881
National Ranking
5868

Ralph A. Giannella publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Ralph A. Giannella sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 150 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Ralph A. Giannella D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Ralph A. Giannella sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 57 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Research.com Recognitions

  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Ralph A. Giannella is affiliated with the University of Cincinnati in the United States. Their academic profile reflects a career focused on medical research, as indicated by their recognition as a Member of the Association of American Physicians.

Although there are no recent papers, co-authors, or publication venues listed, the membership in a professional association dedicated to physicians suggests involvement in clinical or biomedical research.

The information does not specify particular fields of study, subfields, or main topics of work. Likewise, there are no details about book publications or specific awards beyond the association membership.

This profile indicates a professional standing rooted in the medical research community, with a formal affiliation to a recognized academic institution in the United States.

Best Publications

  • Attaching and effacing activities of rabbit and human enteropathogenic Escherichia coli in pig and rabbit intestines.

    H W Moon;S C Whipp;R A Argenzio;M M Levine

  • Gastric acid barrier to ingested microorganisms in man: studies in vivo and in vitro

    R. A. Giannella;S. A. Broitman;N. Zamcheck

  • Suckling mouse model for detection of heat-stable Escherichia coli enterotoxin: characteristics of the model.

    R A Giannella

  • Mice Lacking the Basolateral Na-K-2Cl Cotransporter Have Impaired Epithelial Chloride Secretion and Are Profoundly Deaf

    Michael Flagella;Lane L. Clarke;Marian L. Miller;Lawrence C. Erway

  • Influence of Gastric Acidity on Bacterial and Parasitic Enteric Infections: A Perspective

    Ralph A. Giannella;Selwyn A. Broitman;Norman Zamcheck

  • Pathogenesis of Salmonellosis STUDIES OF FLUID SECRETION, MUCOSAL INVASION, AND MORPHOLOGIC REACTION IN THE RABBIT ILEUM

    R. A. Giannella;S. B. Formal;G. J. Dammin;H. Collins

  • Pathophysiology of Shigella Diarrhea in the Rhesus Monkey: Intestinal Transport, Morphological, and Bacteriological Studies

    W.R. Rout;W.R. Rout;W.R. Rout;S.B. Formal;S.B. Formal;S.B. Formal;R.A. Giannella;R.A. Giannella;R.A. Giannella;G.J. Dammin;G.J. Dammin;G.J. Dammin

  • Invasion of HeLa Cells by Salmonella typhimurium: A Model for Study of Invasiveness of Salmonella

    Ralph A. Giannella;Othello Washington;Peter Gemski;Samuel B. Formal

  • Purification and characterization of heat-stable enterotoxin produced by a strain of E. coli pathogenic for man.

    S J Staples;S E Asher;R A Giannella

  • Randomized, double-blind, placebo-controlled, multicentered trial of the efficacy of a single dose of live oral cholera vaccine CVD 103-HgR in preventing cholera following challenge with Vibrio cholerae O1 El tor inaba three months after vaccination.

    Carol O. Tacket;Mitchell B. Cohen;Steven S. Wasserman;Genevieve Losonsky

  • Usefulness of colonoscopy with biopsy in the evaluation of patients with chronic diarrhea.

    Raj J Shah;Cecilia Fenoglio-Preiser;Brian L Bleau;Ralph A Giannella

  • Mice Lacking the Guanylyl Cyclase C Receptor Are Resistant to STa-Induced Intestinal Secretion

    E A Mann;M L Jump;J Wu;E Yee

  • Mechanism of action of Escherichia coli heat stable enterotoxin in a human colonic cell line.

    P A Huott;W Liu;J A McRoberts;R A Giannella

  • Amino acid sequence of heat-stable enterotoxin produced by Escherichia coli pathogenic for man.

    S K Chan;R A Giannella

  • Indomethacin Inhibition of Salmonella typhimurium, Shigella flexneri, and Cholera-Mediated Rabbit Ileal Secretion

    Ronald E. Gots;Samuel B. Formal;Ralph A. Giannella

  • Pathogenesis of Salmonella-mediated intestinal fluid secretion. Activation of adenylate cyclase and inhibition by indomethacin.

    R.A. Giannella;R.E. Gots;A.N. Charney;W.B. Greenough

  • Pathogenesis of Acute Bacterial Diarrheal Disorders

    R A Giannella

  • Small intestinal mucosal injury in the experimental blind loop syndrome. Light- and electron-microscopic and histochemical studies.

    P.P. Toskes;R.A. Giannella;H.R. Jervis;W.R. Rout

  • Importance of the intestinal inflammatory reaction in salmonella-mediated intestinal secretion.

    R A Giannella

  • Jejunal Brush Border Injury and Impaired Sugar and Amino Acid Uptake in the Blind Loop Syndrome

    R.A. Giannella;W.R. Rout;P.P. Toskes

Frequent Co-Authors

Michael O. Thompson
Michael O. Thompson Cornell University
Samuel B. Formal
Samuel B. Formal Walter Reed Army Institute of Research
Myron M. Levine
Myron M. Levine University of Maryland, Baltimore
Genevieve Losonsky
Genevieve Losonsky University of Maryland, Baltimore
David P. Witte
David P. Witte Cincinnati Children's Hospital Medical Center
Kim E. Barrett
Kim E. Barrett University of California, San Diego
Richard N. Greenberg
Richard N. Greenberg University of Kentucky
Carol O. Tacket
Carol O. Tacket University of Maryland, Baltimore
John N. Lorenz
John N. Lorenz University of Cincinnati Medical Center
Robert R. Edelman
Robert R. Edelman Northwestern University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you’re passionate about Biology or Biochemistry, there are many related online degrees and career paths that can broaden your options in healthcare and science. Flexible learning formats enable you to advance your education or switch fields—from direct patient care to healthcare administration and nutrition science.

For those interested in nursing, the best online rn to bsn programs can help registered nurses earn a bachelor’s degree efficiently while balancing professional commitments. If you want to lead or manage within the healthcare sector, consider the 1 year mha programs online for a quick route to a graduate management qualification.

Mental health is another growing field—rapid advancement is possible through the fastest psych np program for nurses aiming to specialize as mental health practitioners. Alternatively, if you’re interested in nutrition and wellness, the online nutrition degree programs are available to kickstart or advance your career in this important aspect of healthcare.

These diverse online pathways make it easier than ever to build a versatile career that aligns with your interests in the biological sciences.

Best Scientists Citing Ralph A. Giannella

Trending Scientists

Recently Published Articles