World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
57
Citations
9040
World Ranking
11361
National Ranking
3081

Richard Needleman publication distribution in Chemistry in 2026

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 Richard Needleman sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 129 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Richard Needleman D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Richard Needleman sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 57 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Richard Needleman is affiliated with Wayne State University in the United States. Their research primarily focuses on the field of medicine with specific attention to surgery, epidemiology, and urology.

Needleman's scholarly work covers key topics including bladder and urothelial cancer treatments, management of urinary tract infections, and research related to the urinary bladder and prostate. These areas are reflected consistently in their research outputs and collaborations.

Among the frequent co-authors who have contributed to Needleman's studies are Robert G. Uzzo, Selma Masic, Abhishek Srivastava, Dwight D. Kloth, and Evan Bloom. Collaboration with these researchers has been documented across multiple projects.

Needleman's work has been published in notable venues, with "Urology Practice" being a frequent platform for dissemination of their findings.

Notable recent publications include:

  • Bacillus Calmette-Guérin Packaged for Percutaneous Vaccination Can Be Safely Used for Intravesical Instillation in Patients with Urothelial Carcinoma of the Bladder, 2020, Urology Practice

Best Publications

  • Glutamic Acid 204 is the Terminal Proton Release Group at the Extracellular Surface of Bacteriorhodopsin

    Leonid S. Brown;Jun Sasaki;Hideki Kandori;Akio Maeda

  • Conversion of bacteriorhodopsin into a chloride ion pump.

    Jun Sasaki;Leonid S. Brown;Young-Shin Chon;Hideki Kandori

  • Assembly of the mitochondrial membrane system. Characterization of nuclear mutants of Saccharomyces cerevisiae with defects in mitochondrial ATPase and respiratory enzymes.

    A Tzagoloff;A Akai;RB Needleman

  • Water is required for proton transfer from aspartate-96 to the bacteriorhodopsin Schiff base.

    Yi Cao;Gyorgy Varo;Man Chang;Baofu Ni

  • Pathways of proton release in the bacteriorhodopsin photocycle

    Laszlo Zimanyi;Gyorgy Varo;Man Chang;Baofu Ni

  • Coupling photoisomerization of retinal to directional transport in bacteriorhodopsin.

    Hartmut Luecke;Brigitte Schobert;Jean Philippe Cartailler;Hans Thomas Richter

  • Existence of a Proton Transfer Chain in Bacteriorhodopsin: Participation of Glu-194 in the Release of Protons to the Extracellular Surface†

    Andrei K. Dioumaev;Hans Thomas Richter;Leonid S. Brown;Michikazu Tanio

  • A linkage of the pKa's of asp-85 and glu-204 forms part of the reprotonation switch of bacteriorhodopsin.

    Hans-Thomas Richter;Leonid S. Brown;Richard Needleman;Janos K. Lanyi

  • Properties of Asp212----Asn bacteriorhodopsin suggest that Asp212 and Asp85 both participate in a counterion and proton acceptor complex near the Schiff base.

    R. Needleman;Man Chang;Baofu Ni;G. Varo

  • Assembly of the mitochondrial membrane system. Cytoplasmic mutants of Saccharomyces cerevisiae with lesions in enzymes of the respiratory chain and in the mitochondrial ATPase.

    A Tzagoloff;A Akai;RB Needleman;G Zulch

  • An efficient system for the synthesis of bacteriorhodopsin in Halobacterium halobium.

    Baofu Ni;Man Chang;Albert Duschl;Janos Lanyi

  • Energy coupling in an ion pump: The reprotonation switch of bacteriorhodopsin

    Mikio Kataoka;Hironari Kamikubo;Fumio Tokunagga;Leonid S. Brown

  • Assembly of the mitochondrial membrane system: isolation of nuclear and cytoplasmic mutants of Saccharomyces cerevisiae with specific defects in mitochondrial functions.

    A Tzagoloff;A Akai;R B Needleman

  • Light-Driven Chloride Ion Transport by Halorhodopsin from Natronobacterium pharaonis. II. Chloride Release and Uptake, Protein Conformation Change, and Thermodynamics

    Gyorgy Varo;Richard Needleman;Janos K. Lanyi

  • MAL6 of Saccharomyces: A complex genetic locus containing three genes required for maltose fermentation

    R B Needleman;D B Kaback;R A Dubin;E L Perkins

  • Structure of the N intermediate of bacteriorhodopsin revealed by x-ray diffraction

    Hironari Kamikubo;Mikio Kataoka;Gyorgy Varo;Toshihiko Oka

  • Proton transfer from Asp-96 to the bacteriorhodopsin Schiff base is caused by a decrease of the pKa of Asp-96 which follows a protein backbone conformational change

    Yi Cao;Gyorgy Varo;Alexandra L. Klinger;Daniel M. Czajkowsky

  • Crystal structure of the D85S mutant of bacteriorhodopsin: model of an O-like photocycle intermediate.

    Shahab Rouhani;Jean-Philippe Cartailler;Marc T Facciotti;Peter Walian

  • Transient channel-opening in bacteriorhodopsin: an EPR study.

    Thorgeir E. Thorgeirsson;Wenzhong Xiao;Leonid S. Brown;Richard Needleman

  • Control of maltase synthesis in yeast.

    R. Needleman

Frequent Co-Authors

Janos K. Lanyi
Janos K. Lanyi University of California, Irvine
Leonid S. Brown
Leonid S. Brown University of Guelph
Hideki Kandori
Hideki Kandori Nagoya Institute of Technology
Hazime Saitô
Hazime Saitô University of Hyogo
Mikio Kataoka
Mikio Kataoka Nara Institute of Science and Technology
Mordechai Sheves
Mordechai Sheves Weizmann Institute of Science
Yoshinori Shichida
Yoshinori Shichida Ritsumeikan University
Alexander Tzagoloff
Alexander Tzagoloff Columbia University
Judith Herzfeld
Judith Herzfeld Brandeis University
Michael Ottolenghi
Michael Ottolenghi Hebrew University of Jerusalem

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