| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Biology and Biochemistry | 49 | 17916 | 16443 | 7332 | 6546 | 82 | 11023 |
The chart shows the history of publications by John A. Breznak between 1969 and 2017, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John A. Breznak published across 49 years, from 1969 to 2017, averaging 1.8 papers a year. Output peaked at 5 publications in 1985. 2 of the 88 publications appeared in the last two years.
88 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1969 | 1 |
| 1970 | 0 |
| 1971 | 0 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 0 |
| 1975 | 1 |
| 1976 | 0 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 1 |
| 1980 | 4 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 3 |
| 1984 | 2 |
| 1985 | 5 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 0 |
| 1990 | 3 |
| 1991 | 5 |
| 1992 | 1 |
| 1993 | 4 |
| 1994 | 5 |
| 1995 | 3 |
| 1996 | 2 |
| 1997 | 1 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 3 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 5 |
| 2005 | 1 |
| 2006 | 3 |
| 2007 | 4 |
| 2008 | 1 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 1 |
| 2013 | 0 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 0 |
| 2017 | 2 |
| Total | 88 |
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 John A. Breznak sits on this spectrum.
This scientist: 82 publications — 1st percentile
1% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 1,028 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 47–56 | 8 | |
| 57–66 | 35 | |
| 67–76 | 106 | |
| 77–86 | 231 | 82 |
| 87–96 | 413 | |
| 97–106 | 546 | |
| 107–116 | 704 | |
| 117–126 | 848 | |
| 127–136 | 980 | |
| 137–146 | 942 | |
| 147–156 | 969 | |
| 157–166 | 949 | |
| 167–176 | 951 | |
| 177–186 | 915 | |
| 187–196 | 787 | |
| 197–206 | 840 | |
| 207–216 | 733 | |
| 217–226 | 708 | |
| 227–236 | 651 | |
| 237–246 | 605 | |
| 247–256 | 510 | |
| 257–266 | 524 | |
| 267–276 | 434 | |
| 277–286 | 417 | |
| 287–296 | 350 | |
| 297–306 | 363 | |
| 307–316 | 315 | |
| 317–326 | 296 | |
| 327–336 | 261 | |
| 337–346 | 240 | |
| 347–356 | 219 | |
| 357–366 | 196 | |
| 367–376 | 154 | |
| 377–386 | 161 | |
| 387–396 | 155 | |
| 397–406 | 145 | |
| 407–416 | 124 | |
| 417–426 | 112 | |
| 427–436 | 132 | |
| 437–446 | 116 | |
| 447–456 | 99 | |
| 457–466 | 81 | |
| 467–476 | 91 | |
| 477–486 | 80 | |
| 487–496 | 80 | |
| 497–506 | 59 | |
| 507–516 | 36 | |
| 517–526 | 46 | |
| 527–536 | 54 | |
| 537–546 | 44 | |
| 547–556 | 43 | |
| 557–566 | 43 | |
| 567–576 | 42 | |
| 577–586 | 25 | |
| 587–596 | 34 | |
| 597–606 | 23 | |
| 607–616 | 33 | |
| 617–626 | 31 | |
| 627–636 | 27 | |
| 637–646 | 25 | |
| 647–656 | 28 | |
| 657–666 | 34 | |
| 667–676 | 18 | |
| 677–686 | 16 | |
| 687–696 | 10 | |
| 697–706 | 12 | |
| 707–716 | 21 | |
| 717–726 | 12 | |
| 727–736 | 12 | |
| 737–746 | 10 | |
| 747–756 | 7 | |
| 757–766 | 13 | |
| 767–776 | 15 | |
| 777–786 | 13 | |
| 787–796 | 9 | |
| 797–806 | 9 | |
| 807–816 | 7 | |
| 817–826 | 4 | |
| 827–836 | 9 | |
| 837–846 | 7 | |
| 847–856 | 3 | |
| 857–866 | 5 | |
| 867–876 | 5 | |
| 877–886 | 11 | |
| 887–896 | 3 | |
| 897–906 | 4 | |
| 907–916 | 7 | |
| 917–926 | 5 | |
| 927–936 | 6 | |
| 937–946 | 6 | |
| 947–956 | 3 | |
| 957–966 | 7 | |
| 967–976 | 2 | |
| 977–986 | 2 | |
| 987–996 | 1 | |
| 997–1,006 | 5 | |
| 1,007–1,016 | 2 | |
| 1,017–1,026 | 2 | |
| 1,027 | 1 | |
| 1,028+ | 100 |
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 John A. Breznak sits on this spectrum.
This scientist: 49 D-Index — 9th percentile
9% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 167 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 40–41 | 80 | |
| 42–43 | 183 | |
| 44–45 | 316 | |
| 46–47 | 504 | |
| 48–49 | 718 | 49 |
| 50–51 | 899 | |
| 52–53 | 1,025 | |
| 54–55 | 1,149 | |
| 56–57 | 1,235 | |
| 58–59 | 1,253 | |
| 60–61 | 1,162 | |
| 62–63 | 1,130 | |
| 64–65 | 1,031 | |
| 66–67 | 897 | |
| 68–69 | 814 | |
| 70–71 | 714 | |
| 72–73 | 709 | |
| 74–75 | 596 | |
| 76–77 | 512 | |
| 78–79 | 473 | |
| 80–81 | 412 | |
| 82–83 | 373 | |
| 84–85 | 358 | |
| 86–87 | 285 | |
| 88–89 | 273 | |
| 90–91 | 227 | |
| 92–93 | 208 | |
| 94–95 | 193 | |
| 96–97 | 153 | |
| 98–99 | 157 | |
| 100–101 | 148 | |
| 102–103 | 120 | |
| 104–105 | 113 | |
| 106–107 | 100 | |
| 108–109 | 86 | |
| 110–111 | 67 | |
| 112–113 | 71 | |
| 114–115 | 73 | |
| 116–117 | 64 | |
| 118–119 | 53 | |
| 120–121 | 60 | |
| 122–123 | 54 | |
| 124–125 | 43 | |
| 126–127 | 38 | |
| 128–129 | 49 | |
| 130–131 | 26 | |
| 132–133 | 18 | |
| 134–135 | 23 | |
| 136–137 | 32 | |
| 138–139 | 32 | |
| 140–141 | 27 | |
| 142–143 | 19 | |
| 144–145 | 22 | |
| 146–147 | 12 | |
| 148–149 | 16 | |
| 150–151 | 14 | |
| 152–153 | 10 | |
| 154–155 | 13 | |
| 156–157 | 10 | |
| 158–159 | 7 | |
| 160–161 | 9 | |
| 162–163 | 13 | |
| 164–165 | 4 | |
| 166 | 4 | |
| 167+ | 98 |
John A. Breznak is affiliated with Michigan State University in the United States. The academic profile available focuses primarily on their institutional connection.
No recent papers, specific research topics, or main and subfields of study have been documented in the available data. Similarly, there is no recorded information about co-authors, publication venues, book publications, or awards won by this researcher.
Due to the limited data on published works or research areas, it is not possible to provide a detailed summary of John A. Breznak's scientific contributions or thematic focus. The absence of documented publications or co-authorship suggests an incomplete public record in the current data set.
John A. Breznak's active professional status is indicated by the absence of any information about their being deceased.
J. A Breznak;A Brune
R. L. Sutka;N. E. Ostrom;P. H. Ostrom;J. A. Breznak
Bradley S. Stevenson;Stephanie A. Eichorst;John T. Wertz;Thomas M. Schmidt
Stephanie A. Eichorst;John A. Breznak;Thomas M. Schmidt
J. R. Leadbetter;T. M. Schmidt;J. R. Graber;J. A. Breznak
Jared R. Leadbetter;John A. Breznak
T. G. Lilburn;K. S. Kim;N. E. Ostrom;K. R. Byzek
John A. Breznak;Winston J. Brill;James W. Mertins;Harry C. Coppel
Alain Brauman;Matthew D. Kane;Marc Labat;John A. Breznak
John A. Breznak;Jodi M. Switzer
Catherine J. Potrikus;John A. Breznak
David A. Odelson;John A. Breznak
John A. Breznak;Jodi M. Switzer;H. J. Seitz
John A. Breznak
Joseph R. Graber;Jared R. Leadbetter;John A. Breznak
A Brune;E Miambi;J A Breznak
Joseph R. Graber;John A. Breznak
Matthew D. Kane;John A. Breznak
Alain Brauman;Joel Doré;Paul Eggleton;David Bignell
John Gunderson;Gregory Hinkle;Detlef Leipe;Hilary G. Morrison
If you think any of the details on this page are incorrect, let us know.
Exploring Biology and Biochemistry opens doors to many fast-growing careers. Today, many related degrees can be earned online, offering flexibility to balance study, work, and life. For those interested in healthcare, pharm d online programs prepare graduates for pharmacy roles with a strong scientific foundation.
If you’re drawn to physical health, consider an exercise science degree online accredited program. These degrees are ideal for careers in fitness, rehabilitation, and sports performance. Similarly, you can specialize with an online kinesiology degree, which is valuable for roles in wellness coaching, athletic training, and research.
Mental health is another fast-growing sector. Those looking to enter psychiatric care should explore pmhnp online programs to become Psychiatric-Mental Health Nurse Practitioners. Whatever your interest—healthcare, research, or wellness—online degrees make it more accessible to start or advance your career.
University of Padua
State University of Campinas
University of Tokyo
Valparaiso University
University of Victoria
New York University
University of Bari Aldo Moro
National University of Singapore
University of Sussex
Karlsruhe Institute of Technology
Harvard University
University of Akron
Universidade Nova de Lisboa
University of California, Santa Barbara
University of Massachusetts Lowell