Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 1 - 20 / 179

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    A new perspective on extinctions : the search for a common formula
    Noort, P.C. van den; Elewa, A.M.T. - \ 2011
    Academia Arena 3 (2011)4. - ISSN 1553-992X - p. 10 - 18.
    This paper introduces a new theory to explain and to estimate the size and frequency of extinctions over the entire period of 600 my of the fossil record. The current explanation is excellent .There seems to be a common pattern or formula. We will demonstrate in what way death is a fact of life: there is a constant margin of 10 pct, and about seven peaks with at least 25 pct of extinction victims. Those peaks occur each 85 million years, but their frequency has increased over time. In principle, the predictability of the next peak is limited, because of chaos (within the solar system and the ecosystem on Earth), the unpredictability of mutations in Nature, of innovations by Man, and let alone the disastrous impacts of asteroids. It also depends on the concept of whether life is cyclical or linear. Therefore, some predictions have a low likelihood of occurrence. In the traditional theory or Old Vision there are many extinctions and even mass extinctions, each with various theories believed to be their cause. There is no single theory explaining all extinctions .Man was witness to and perhaps later on even guilty of extinctions. Even as early as in the Ice Ages he tried to find facts and continued later on in the Age of Science. But we still do not see extinctions in their right perspective, and it would be very useful to change this.
    The economic significance of speculations in science
    Noort, P.C. van den - \ 2011
    Report and Opinion 3 (2011)12. - ISSN 1553-9873 - p. 1 - 3.
    The growth and development of economies can be described as a logistic evolution process, for which we have a mathematical formulation. This shows that without innovation highly developed economies go into recession or even depression. To prevent or repair this we need a stream of inventions, leading to innovations. Those inventions are based on new developments in science. For that we need scientists who are engaged in speculative theories. However, in times of growth there is no need for such people, they even become outsiders or mavericks. Until the phase of growth reaches its end and consequently the economies go into recession. It is very difficult for most people to see what is happening then as they are used to the continuous growth. When the insight comes it is difficult to find new inventive scientists within the good old organization of science. Some mavericks are perhaps present in their own way and hopefully they find their way to new science, new paradigms and inventions. Only then the economies can get out of the depressed state
    The Orbit of Planet Earth in the Last 150 Million Years
    Noort, P.C. van den - \ 2011
    New York Science Journal 4 (2011)10. - ISSN 1554-0200 - p. 63 - 65.
    The structure of the world is a construction of philosophers and scientists. It changed all the time. Nowadays we have a chaotic Solar System. The orbit of Earth changes, therefore, on the very long run. With it changed the UV- radiation on the surface of Earth, influencing the number of mutations. This celestial factor plays an important role in the explanation of evolution and extinction which we can see in the fossil record of Earth, and reversed we can reconstruct the orbit of planet Earth. In principle this factor can also explain the loss of life on Venus and Mars
    Evolutie en chaos.
    Noort, P.C. van den - \ 1998
    Natuur en Techniek 67 (1998). - ISSN 0028-1093 - p. 58 - 67.
    Evolution, mass extensions and the chaotics of the solar system.
    Noort, P.C. van den - \ 1997
    Speculations in Science and Technology 20 (1997). - ISSN 0155-7785 - p. 211 - 218.
    Grond voor groei
    Noort, P.C. van den - \ 1996
    Wageningen : LU - 64
    economie - economics
    The economic significance of speculations in science.
    Noort, P.C. van den - \ 1996
    Speculations in Science and Technology 19 (1996). - ISSN 0155-7785 - p. 219 - 223.
    The economic significance of speculation in science.
    Noort, P.C. van den - \ 1995
    Journal of Speculation in Science and Technology 17 (1995). - p. 213 - 222.
    Theoretische achtergrond van taxaties van landbouwgrond.
    Noort, P.C. van den - \ 1995
    In: Theorie en praktijk van taxaties in het landelijk gebied / van den Noort, P.C., Visser-Reyneveld, M.I., Wageningen : PHLO - p. 7 - 22.
    Complexity and survival. The Newell Dichotomy.
    Noort, P.C. van den - \ 1995
    Delft : Eburon - ISBN 9789051664621 - 71 p.
    Mass extinctions and the chaotics of the solar system.
    Noort, P.C. van den - \ 1995
    Journal of Speculation in Science and Technology 17 (1995). - p. 85 - 92.
    Nieuwe pachtvormen en pachtnormen.
    Noort, P.C. van den; Clazing, C.A.M. - \ 1995
    In: Theorie en praktijk van taxaties in het landelijk gebied / van den Noort, P.C., Visser-Reyneveld, M.I., Wageningen : PHLO - p. 179 - 194.
    Theorie en praktijk van taxaties in het landelijk gebied.
    Noort, P.C. van den; Visser-Reyneveld, M.I. - \ 1995
    Wageningen : Stichting Post-Hoger Landbouwonderwijs - 203 p.
    Toekomstige pachtnormensystematiek.
    Noort, P.C. van den; Clazing, C.A.M. - \ 1994
    Unknown Publisher - 25 p.
    Scenario's for the peatland reclamation district.
    Heijman, W.J.M. ; Jansen, J.M.L. ; Braake, G.H.A. te; Meerman, S. ; Noort, P.C. van den; Niejenhuis, J.H. van; Smit, A.B. ; Thijsen, S. - \ 1994
    In: The future of the land, L.O. Fresco et al. (eds.). Wiley and Sons, Chichester - p. 203 - 225.
    Verslag van de werkzaamheden pachtnormen en pachtprijzen voor bedrijfsgebouwen en woningen, deel I.
    Noort, P.C. van den; Clazing, C. - \ 1994
    Unknown Publisher - 30 p.
    Equilibrium and complexity. (studies in chaostheorie).
    Noort, P.C. van den - \ 1994
    Wageningen : Vakgroep Algemene Agrarische Economie, LU - 50 p.
    The adventure of species: evolution and revolution in the last 600 million years.
    Noort, P.C. van den - \ 1994
    Speculations in Science and Technology 16 (1994). - ISSN 0155-7785 - p. 248 - 261.
    Growth as a prerequisite for sustainability.
    Noort, P.C. van den - \ 1994
    In: The US economy within the light of justice, solidarity and complementarity / Karsten, S.G., - p. 97 - 107.
    The Newell index theory.
    Noort, P.C. van den - \ 1993
    In: Paper Conf. Predictability and non-linearity, Wageningen (1993) 18 pp
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