Zobrazeno 1 - 10
of 47
pro vyhledávání: '"J.A. Hoekstra"'
Autor:
Arend J.A. Hoekstra, Thomas Isaac
Impact Benefit Agreements (IBAs) are private contractual agreements negotiated between project proponents and Indigenous peoples. IBAs are most commonly negotiated by willing parties seeking to avoid risk: the risk that a project's approval may be re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4b7358faf30e0c7112e7f661b3fefac
https://doi.org/10.4324/9780429505638-15
https://doi.org/10.4324/9780429505638-15
Autor:
J.A. Hoekstra, P.H. van Ewijk
Publikováno v:
Environmental Toxicology and Chemistry. 12:187-194
This paper questions the usefulness of the no-observed-effect level (NOEL) as a summary statistic for ecotoxicological experiments. Quantification of the NOEL depends critically on size and variability of an experiment: smaller and less precise exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa4fb3de4ad1b519ad98a2a89182ad6
https://doi.org/10.1002/etc.5620120119
https://doi.org/10.1002/etc.5620120119
Autor:
J.A. Hoekstra, P. H. van Ewijk
Publikováno v:
Science of The Total Environment. 134:705-711
This paper criticizes the No Observed Effect Concentration (NOEC) defined as the highest concentration for which the difference from the control group is not statistically significant. It is shown by example and theoretically that NOECs defined in su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76c5604cb29a809b14e16f652cdbcbc7
https://doi.org/10.1016/s0048-9697(05)80074-9
https://doi.org/10.1016/s0048-9697(05)80074-9
Autor:
J.A. Hoekstra
Publikováno v:
Communications in Statistics - Simulation and Computation. 20:715-723
This paper is concerned with the 'tolerance-distribution free estimation of a LD50 (LC50) in a toxicity experiment with background mortality. Firstly the observed proportions mortality are adjusted by Abbott's formula. The LD50 is then obtained by in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c75ab48706b08d41398717a92079757
https://doi.org/10.1080/03610919108812979
https://doi.org/10.1080/03610919108812979
Autor:
J.A. Hoekstra, P. H. van Ewijk
Publikováno v:
Ecotoxicology and environmental safety. 25(1)
In many experiments in toxicology and ecotoxicology with continuous response, like growth, a stimulus is found for low doses, while higher doses are toxic. This subtoxic stimulus is called hormesis. The standard logistic model cannot be used when hor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::503c61bcc883c633ec12fe1af2f16cf8
https://pubmed.ncbi.nlm.nih.gov/7682915
https://pubmed.ncbi.nlm.nih.gov/7682915
Autor:
L. Henzen, J.A. Hoekstra, E.M. Dirven-van Breemen, R. Baerselman, C.A.M. van Gestel, W.A. van Dis, H.A. Herbold, E.M. Hulzebos, D. M. M. Adema
Publikováno v:
Hulzebos, E M, Adema, D M M, Dirven-van Breemen, E M, Henzen, L, van Dis, W A, Herbold, H A, Hoekstra, J A, Baerselman, R & van Gestel, C A M 1993, ' Phytotoxicity studies with Lactuca sativa in soil and nutrient solution. ', Environmental Toxicology and Chemistry, vol. 12, pp. 1079-1094 . https://doi.org/10.1002/etc.5620120614
Environmental Toxicology and Chemistry, 12, 1079-1094. John Wiley and Sons Ltd
Environmental Toxicology and Chemistry, 12, 1079-1094. John Wiley and Sons Ltd
The toxicity of 76 priority pollutants to lettuce (Lactuca sativa) was determined in soil and in nutrient solution. In the first case a static and in the latter a semistatic exposure was established Volatile and easily degradable compounds had high E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::843fabce089f2fdf47f6a50d344810f1
https://research.vu.nl/en/publications/d14f1ef0-4846-466c-b03f-8c128034658e
https://research.vu.nl/en/publications/d14f1ef0-4846-466c-b03f-8c128034658e
Autor:
J.A. Hoekstra, P. H. van Ewijk
Publikováno v:
Applied Statistics. 43:477
SUMMARY The curvature measures introduced by Bates and Watts and the subset curvature measure proposed by Cook and Goldberg were calculated for the linear logistic model and for the exponential model for a large number of data sets. In addition, like
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91f24c9eee8b6e0c6959d1cc8077b193
https://doi.org/10.2307/2986272
https://doi.org/10.2307/2986272
Autor:
J.A. Hoekstra, J. Jansen
Publikováno v:
Applied Animal Behaviour Science. 16:303-308
This paper is concerned with the statistical analysis of data from comparative experiments in applied animal behaviour research. It is emphasized that the statistical analysis of experimental results should be in accordance with the design of the exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fa5c7df3a0168ade5eac5bb019c1e02
https://doi.org/10.1016/0168-1591(86)90002-x
https://doi.org/10.1016/0168-1591(86)90002-x
Autor:
J. Jansen, J.A. Hoekstra
Publikováno v:
Applied Animal Behaviour Science. 19:315-319
This paper is concerned with sampling strategies in the study of behavioural elements of short duration. These elements often occur in clusters. A semi-Markov model is used to describe the time pattern. It is shown that under the semi-Markov model, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1015af32c49dd95b7b4d8305e20dacb
https://doi.org/10.1016/0168-1591(88)90013-5
https://doi.org/10.1016/0168-1591(88)90013-5
Publikováno v:
Statistica Neerlandica. 40:205-223
We consider methods for the analysis of successive measurements, with emphasis on practical usefulness. It is described how the methods can be applied by using common techniques like regression analysis and analysis of variance.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c391639ec976198485493bc558dfa0
https://doi.org/10.1111/j.1467-9574.1986.tb01201.x
https://doi.org/10.1111/j.1467-9574.1986.tb01201.x