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Howard Alper
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Chemistry
Canada
2025

D-Index & Metrics

Chemistry

D-Index
88
Citations
28026
World Ranking
2287
National Ranking
49

Howard Alper 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 Howard Alper 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: 758 publications — 97th percentile

97% of scientists in this discipline score the same or lower.

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

Howard Alper 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 Howard Alper 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: 88 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2025 - Research.com Chemistry in Canada Leader Award
  • 2022 - Research.com Chemistry in Canada Leader Award
  • 2003 - Fellow, The World Academy of Sciences
  • 1997 - Chemical Institute of Canada Medal
  • 1985 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1984 - Fellow of the Royal Society of Canada Academy of Science

Overview

Howard Alper is affiliated with the University of Ottawa in Canada. Their research spans multiple fields, focusing primarily on medicine, health professions, and psychology. Their work incorporates several subfields including occupational therapy, clinical psychology, public health, environmental and occupational health, emergency medicine, and emergency medical services.

The main topics addressed in their research include occupational health and performance, posttraumatic stress disorder research, injury epidemiology and prevention, trauma and emergency care studies, disaster response and management, traffic and road safety, and migration, health, and trauma.

Howard Alper has published extensively, with notable recent papers including:

  • Association Between Socioeconomic Status and Asthma-Related Emergency Department Visits Among World Trade Center Rescue and Recovery Workers and Survivors, 2020, JAMA Network Open
  • Injury Severity and Psychological Distress Sustained in the Aftermath of the Attacks of 11 September 2001 Predict Somatic Symptoms in World Trade Center Health Registry Enrollees Sixteen Years Later, 2020, International Journal of Environmental Research and Public Health
  • Trajectories of psychological distress among individuals exposed to the 9/11 World Trade Center disaster, 2021, Psychological Medicine
  • Post-9/11 Mental Health Comorbidity Predicts Self-Reported Confusion or Memory Loss in World Trade Center Health Registry Enrollees, 2020, International Journal of Environmental Research and Public Health
  • Stroke hospitalizations, posttraumatic stress disorder, and 9/11-related dust exposure: Results from the World Trade Center Health Registry, 2021, American Journal of Industrial Medicine

Frequent coauthors in Howard Alper's collaborations include Robert M. Brackbill, Jennifer Brite, Shengchao Yu, Sean Locke, and James E. Cone.

The most common venues for their publications are the International Journal of Environmental Research and Public Health, the American Journal of Industrial Medicine, Psychological Medicine, JAMA Network Open, and the Journal of Asthma.

Howard Alper has been recognized by various awards and honors, including:

  • Fellow of the Royal Society of Canada, 1984 (Academy of Science)
  • Fellow of John Simon Guggenheim Memorial Foundation, 1985
  • Chemical Institute of Canada Medal, 1997
  • Fellow, The World Academy of Sciences, 2003

Best Publications

  • Transformations of Chloroarenes, Catalyzed by Transition-Metal Complexes

    Vladimir V. Grushin;Howard Alper

  • Metal supported on dendronized magnetic nanoparticles: highly selective hydroformylation catalysts.

    Raed Abu-Reziq;Howard Alper;Dashan Wang;Michael L Post

  • Asymmetric synthesis of acids by the palladium-catalyzed hydrocarboxylation of olefins in the presence of (R)-(-)- or (S)-(+)-1,1'-binaphthyl-2,2'-diyl hydrogen phosphate

    Howard Alper;Nathalie Hamel

  • Activation of Unreactive Bonds and Organic Synthesis

    Shinji Murai;H. Alper;R. A. Gossage;V. V. Grushin

  • Alkali-induced disproportionation of palladium(II) tertiary phosphine complexes, [L2PdCl2], to LO and palladium(O). Key intermediates in the biphasic carbonylation of ArX catalyzed by [L2PdCl2]

    Vladimir V. Grushin;Howard Alper

  • Computer simulations of the dielectric properties of water: Studies of the simple point charge and transferrable intermolecular potential models

    Howard E. Alper;Ronald M. Levy

  • Transition Metal Mediated Carbonylative Ring Expansion of Heterocyclic Compounds

    Kanjai Khumtaveeporn;Howard Alper

  • Enantiospecific and stereospecific rhodium(I)-catalyzed carbonylation and ring expansion of aziridines. Asymmetric synthesis of .beta.-lactams and the kinetic resolution of aziridines

    Serge Calet;Fabio Urso;Howard Alper

  • Regioselective Palladium(II)-Catalyzed Synthesis of Five- or Seven-Membered Ring Lactones and Five-, Six- or Seven-Membered Ring Lactams by Cyclocarbonylation Methodology

    Bassam El Ali;Kazumi Okuro;Giuseppe Vasapollo;Howard Alper

  • Platinum Nanoparticles Supported on Ionic Liquid-Modified Magnetic Nanoparticles: Selective Hydrogenation Catalysts

    Raed Abu-Reziq;Dashan Wang;Michael Post;Howard Alper

  • P,S Ligands for the Asymmetric Construction of Quaternary Stereocenters in Palladium‐Catalyzed Decarboxylative [4+2] Cycloadditions

    Yi Wei;Liang-Qiu Lu;Tian-Ren Li;Bin Feng

  • Hydroformylation Reactions Using Recyclable Rhodium-Complexed Dendrimers on Silica

    S. Christine Bourque and;Howard Alper;Leo E. ManzerPrabhat Arya

  • Magnetic nanoparticle-supported proline as a recyclable and recoverable ligand for the CuI catalyzed arylation of nitrogen nucleophiles.

    Unknown

  • Palladium-catalyzed hydrocarboxylation of alkynes with formic acid

    Davit Zargarian;Howard Alper

  • Hydroformylation Reactions with Rhodium-Complexed Dendrimers on Silica

    Unknown

  • Periodic Mesoporous Silica-Supported Recyclable Rhodium-Complexed Dendrimer Catalysts

    Jan P. K. Reynhardt;Yong Yang;and Abdelhamid Sayari;Howard Alper

  • Highly Ligand-Controlled Regioselective Pd-Catalyzed Aminocarbonylation of Styrenes with Aminophenols.

    Unknown

  • Palladium(0)-Catalyzed Asymmetric Cycloaddition of Vinyloxiranes with Heterocumulenes Using Chiral Phosphine Ligands: An Effective Route to Highly Enantioselective Vinyloxazolidine Derivatives

    Chitchamai Larksarp;Howard Alper

  • Mechanism of Solute Diffusion through Lipid Bilayer Membranes by Molecular Dynamics Simulation

    Donna Bassolino-Klimas;Howard E. Alper;Terry R. Stouch

  • Solute diffusion in lipid bilayer membranes: an atomic level study by molecular dynamics simulation.

    Unknown

  • Regiospecific metal-catalyzed ring expansion of aziridines to .beta.-lactams

    Howard Alper;Fabio Urso;David J. H. Smith

  • A NEW, EFFICIENT, AND IN SOME CASES HIGHLY REGIOSELECTIVE WATER-SOLUBLE POLYMER RHODIUM CATALYST FOR OLEFIN HYDROFORMYLATION

    Abdelaziz Nait Ajjou;Howard Alper

  • Separable Catalysts in One-Pot Syntheses for Greener Chemistry

    Raed Abu-Reziq;Dashan Wang;Michael Post;Howard Alper

  • Novel palladium-catalyzed carbonylation of organic halides by chloroform and alkali

    Vladimir V. Grushin;Howard Alper

Frequent Co-Authors

Vladimir V. Grushin
Vladimir V. Grushin DuPont (United States)
Giuseppe Vasapollo
Giuseppe Vasapollo University of Salento
Anthony C. Willis
Anthony C. Willis Australian National University
Dominique Roberto
Dominique Roberto University of Milan
Cathleen M. Crudden
Cathleen M. Crudden Queen's University
Wen-Jing Xiao
Wen-Jing Xiao Central China Normal University
Wing-Yiu Yu
Wing-Yiu Yu Hong Kong Polytechnic University
Roland Boese
Roland Boese University of Duisburg-Essen
Davit Zargarian
Davit Zargarian University of Montreal
Ferenc Joó
Ferenc Joó University of Debrecen

External Links

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