| Discipline name | D-Index | World Ranking | National Ranking | Publications | Citations |
|---|---|---|---|---|---|
| Microbiology | 96 | 503 | 234 | 549 | 36850 |
| Genetics | 95 | 895 | 446 | 486 | 35664 |
The chart shows the history of publications by Jan Klein between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jan Klein published across 61 years, from 1965 to 2025, averaging 9.4 papers a year. Output peaked at 31 publications in 1982. 4 of the 574 publications appeared in the last two years.
574 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1965 | 1 |
| 1966 | 0 |
| 1967 | 2 |
| 1968 | 0 |
| 1969 | 0 |
| 1970 | 3 |
| 1971 | 7 |
| 1972 | 5 |
| 1973 | 9 |
| 1974 | 6 |
| 1975 | 30 |
| 1976 | 14 |
| 1977 | 16 |
| 1978 | 26 |
| 1979 | 20 |
| 1980 | 8 |
| 1981 | 22 |
| 1982 | 31 |
| 1983 | 25 |
| 1984 | 17 |
| 1985 | 18 |
| 1986 | 18 |
| 1987 | 18 |
| 1988 | 14 |
| 1989 | 12 |
| 1990 | 12 |
| 1991 | 19 |
| 1992 | 15 |
| 1993 | 24 |
| 1994 | 12 |
| 1995 | 10 |
| 1996 | 9 |
| 1997 | 20 |
| 1998 | 16 |
| 1999 | 12 |
| 2000 | 23 |
| 2001 | 8 |
| 2002 | 21 |
| 2003 | 9 |
| 2004 | 8 |
| 2005 | 5 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 10 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 1 |
| 2012 | 0 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 0 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
| Total | 574 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Jan Klein sits on this spectrum.
This scientist: 549 publications — 96th percentile
96% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 679 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 55–64 | 8 | |
| 65–74 | 29 | |
| 75–84 | 55 | |
| 85–94 | 112 | |
| 95–104 | 137 | |
| 105–114 | 190 | |
| 115–124 | 235 | |
| 125–134 | 234 | |
| 135–144 | 288 | |
| 145–154 | 265 | |
| 155–164 | 264 | |
| 165–174 | 253 | |
| 175–184 | 276 | |
| 185–194 | 190 | |
| 195–204 | 234 | |
| 205–214 | 208 | |
| 215–224 | 198 | |
| 225–234 | 155 | |
| 235–244 | 161 | |
| 245–254 | 160 | |
| 255–264 | 146 | |
| 265–274 | 139 | |
| 275–284 | 148 | |
| 285–294 | 115 | |
| 295–304 | 96 | |
| 305–314 | 88 | |
| 315–324 | 106 | |
| 325–334 | 65 | |
| 335–344 | 76 | |
| 345–354 | 64 | |
| 355–364 | 62 | |
| 365–374 | 65 | |
| 375–384 | 61 | |
| 385–394 | 34 | |
| 395–404 | 44 | |
| 405–414 | 36 | |
| 415–424 | 35 | |
| 425–434 | 29 | |
| 435–444 | 33 | |
| 445–454 | 34 | |
| 455–464 | 25 | |
| 465–474 | 26 | |
| 475–484 | 20 | |
| 485–494 | 19 | |
| 495–504 | 16 | |
| 505–514 | 17 | |
| 515–524 | 23 | |
| 525–534 | 14 | |
| 535–544 | 14 | |
| 545–554 | 18 | 549 |
| 555–564 | 12 | |
| 565–574 | 7 | |
| 575–584 | 9 | |
| 585–594 | 9 | |
| 595–604 | 9 | |
| 605–614 | 7 | |
| 615–624 | 9 | |
| 625–634 | 7 | |
| 635–644 | 4 | |
| 645–654 | 5 | |
| 655–664 | 6 | |
| 665–674 | 7 | |
| 675–678 | 3 | |
| 679+ | 99 |
The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Jan Klein sits on this spectrum.
This scientist: 96 D-Index — 91st percentile
91% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 127 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 40 | 30 | |
| 41 | 86 | |
| 42 | 90 | |
| 43 | 117 | |
| 44 | 122 | |
| 45 | 123 | |
| 46 | 108 | |
| 47 | 110 | |
| 48 | 106 | |
| 49 | 109 | |
| 50 | 129 | |
| 51 | 111 | |
| 52 | 116 | |
| 53 | 127 | |
| 54 | 134 | |
| 55 | 134 | |
| 56 | 112 | |
| 57 | 136 | |
| 58 | 162 | |
| 59 | 151 | |
| 60 | 139 | |
| 61 | 123 | |
| 62 | 126 | |
| 63 | 144 | |
| 64 | 109 | |
| 65 | 103 | |
| 66 | 124 | |
| 67 | 112 | |
| 68 | 103 | |
| 69 | 131 | |
| 70 | 94 | |
| 71 | 93 | |
| 72 | 96 | |
| 73 | 92 | |
| 74 | 80 | |
| 75 | 66 | |
| 76 | 87 | |
| 77 | 60 | |
| 78 | 73 | |
| 79 | 59 | |
| 80 | 57 | |
| 81 | 55 | |
| 82 | 47 | |
| 83 | 77 | |
| 84 | 50 | |
| 85 | 45 | |
| 86 | 42 | |
| 87 | 41 | |
| 88 | 32 | |
| 89 | 38 | |
| 90 | 35 | |
| 91 | 34 | |
| 92 | 27 | |
| 93 | 26 | |
| 94 | 33 | |
| 95 | 22 | |
| 96 | 37 | 96 |
| 97 | 22 | |
| 98 | 21 | |
| 99 | 22 | |
| 100 | 30 | |
| 101 | 16 | |
| 102 | 20 | |
| 103 | 17 | |
| 104 | 19 | |
| 105 | 16 | |
| 106 | 19 | |
| 107 | 18 | |
| 108 | 14 | |
| 109 | 10 | |
| 110 | 9 | |
| 111 | 7 | |
| 112 | 11 | |
| 113 | 6 | |
| 114 | 15 | |
| 115 | 10 | |
| 116 | 12 | |
| 117 | 7 | |
| 118 | 10 | |
| 119 | 10 | |
| 120 | 11 | |
| 121 | 2 | |
| 122 | 7 | |
| 123 | 12 | |
| 124 | 5 | |
| 125 | 9 | |
| 126 | 6 | |
| 127+ | 95 |
Jan Klein was affiliated with Pennsylvania State University in the United States. Their scholarly contributions spanned multiple fields including aquatic science, pulmonary and respiratory medicine, management science and operations research, artificial intelligence, and statistics and probability.
Their research encompassed a variety of topics with a focus on innovations in aquaponics and hydroponics systems, constructed wetlands for wastewater treatment, water quality monitoring technologies, aquaculture nutrition and growth, aquatic ecosystems and biodiversity, as well as kidney stones and urolithiasis treatments, and pediatric urology and nephrology studies.
Notable recent publications by Jan Klein included:
Frequent coauthors collaborating with Jan Klein were Adrian A. Bischoff, Sandjai Bhulai, Rob van der Mei, Andrea Schüch, and Michael Nelles.
Jan Klein's research was published in various venues, notably:
They received recognition as a Fellow of the American Association for the Advancement of Science (AAAS) in 1987.
Jan Klein
Jan Klein
J. A. N. Klein;Akie Sato
R M Zinkernagel;R M Zinkernagel;R M Zinkernagel;G N Callahan;G N Callahan;G N Callahan;A Althage;A Althage;A Althage;S Cooper;S Cooper;S Cooper
Jan Klein;Ronald E. Bontrop;Roger L. Dawkins;Henry A. Erlich
P. Huijser;J. Klein;W.E. Lönnig;H. Meijer
Jan Klein
Jan Klein;Akie Sato
Jan Klein
Jan Klein
Hugh O. McDevitt;Beverly D. Deak;Donald C. Shreffler;Jan Klein
Jan Klein;F. Figueroa
Jan Klein;Antonio JuretiĆ;Antonio JuretiĆ;Constantin N. Baxevanis;Zoltan A. Nagy
Jan Klein;Yoko Satta;Colm O'Huigin;Naoyuki Takahata
Felipe Figueroa;Eberhardt Gúnther;Jan Klein;Jan Klein
Jan Klein;Akie Sato;Sandra Nagl;Colm O'hUigín
Jan Klein;Felipe Figueroa;Chella S. David
W E Mayer;M Jonker;D Klein;P Ivanyi
Naoyuki Takahata;Yoko Satta;Jan Klein
Barbara J. Alter;Barbara J. Alter;Dolores J. Schendel;Dolores J. Schendel;Marilyn L. Bach;Marilyn L. Bach;Fritz H. Bach;Fritz H. Bach
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