Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ulf Heyman"'
Publikováno v:
Journal of Informetrics. 11:941-944
In Van den Besselaar et al. (2017) we tested the claim of Linda Butler (2003) that funding systems based on output counts have a negative effect on impact as well as quality. Using new data and improved indicators, we indeed reject the claim of Butle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f505a74de2a5af305f1caad831d97bed
https://doi.org/10.1016/j.joi.2017.05.022
https://doi.org/10.1016/j.joi.2017.05.022
Publikováno v:
van den Besselaar, P A A, Heyman, U & Sandstrom, U 2017, ' Perverse effects of output-based research funding? Butler’s Australian case revisite ', Journal of Informetrics, vol. 11, no. 3, pp. 905-918 . https://doi.org/10.1016/j.joi.2017.05.016
Journal of Informetrics, 11(3), 905-918. Elsevier BV
Journal of Informetrics, 11(3), 905-918. Elsevier BV
More than ten years ago, Linda Butler (2003a) published a well-cited article claiming that the Australian science policy in the early 1990s made a mistake by introducing output based funding. According to Butler, the policy stimulated researchers to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8235886c801710cb6d94eeee1f56468
https://research.vu.nl/en/publications/bbd4bfc8-29b7-49b8-b90f-ee2373f45e4e
https://research.vu.nl/en/publications/bbd4bfc8-29b7-49b8-b90f-ee2373f45e4e
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 48:173-182
A short-term photosynthesis test employing phytoplankton or periphyton communities was a good predictor of the concentration of arsenate that affected these microalgal communities under long-term arsenate exposure in limnocorrals. Arsenate stress cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ca2bc5db1432fa5db43579e3fce383e
https://doi.org/10.1139/f91-024
https://doi.org/10.1139/f91-024
Autor:
Peter Blomqvist, Ulf Heyman
Publikováno v:
Juni 1990 ISBN: 9783112557808
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2652befe949a1d0316f589d42eaf85a9
https://doi.org/10.1515/9783112557808-014
https://doi.org/10.1515/9783112557808-014
Publikováno v:
Water Research. 18:787-794
Frequency distributions of water quality variables have been analysed by using about 950 samples from 25 meso- to hypertrophic lakes. By expressing all values as relative to their means, data from all the lakes could be pooled to datasets based on ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80cc0a7ab8e4c03f612764bae5253e68
https://doi.org/10.1016/0043-1354(84)90262-8
https://doi.org/10.1016/0043-1354(84)90262-8
Autor:
Ulf Heyman
Publikováno v:
Hydrobiologia. 101:89-103
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a58a31958bfaa7b38f9eb3f03559674
https://doi.org/10.1007/bf00008660
https://doi.org/10.1007/bf00008660
Autor:
Curt Forsberg, Ulf Heyman
Publikováno v:
SIL Proceedings, 1922-2010. 22:730-733
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ddf6b47399532a5d6d0d4439ccc8bcd
https://doi.org/10.1080/03680770.1983.11897374
https://doi.org/10.1080/03680770.1983.11897374
Autor:
Ulf Heyman
Publikováno v:
Archiv für Hydrobiologie. 106:155-175
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d55d2e87c6c8ba59d0abfbc3218604
https://doi.org/10.1127/archiv-hydrobiol/106/1986/155
https://doi.org/10.1127/archiv-hydrobiol/106/1986/155
Publikováno v:
Water Research. 16:1367-1370
Nine parallel composite plankton samples were taken to investigate the precision of abundance estimates from such samples. Equations describing the variance as a function of the number of counted individuals, the number of samples in the composite sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a7f01a53f996b163d19973d141df7f1
https://doi.org/10.1016/0043-1354(82)90215-9
https://doi.org/10.1016/0043-1354(82)90215-9
Autor:
Hans Blanck, Brita Sundelin, Ulf Heyman, Mats Notini, Arno Rosemarin, Alf Lundgren, Lars Landner
Publikováno v:
Springer Series on Environmental Management ISBN: 9783642647963
The aim of an ecotoxicological test is to provide information on the potential impact of a chemical on an ecosystem before it has caused any damage to this ecosystem. After a discussion of some of the shortcomings of conventional, short-term, single-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9cf8783b92d854ba71955b0a39ea980
https://doi.org/10.1007/978-3-642-61334-0_10
https://doi.org/10.1007/978-3-642-61334-0_10