7 found
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  1.  22
    Theories of Complexity.Dominique Chu, Roger Strand & Ragnar Fjelland - 2003 - Complexity 8 (3):19-30.
  2.  36
    In Vivo Interpretation of in Vitro Effect Studies with a Detailed Analysis of the Method of in Vitro Transcription in Isolated Cell Nuclei.Roger Strand, Ragnar Fjelland & Torgeir Flatmark - 1996 - Acta Biotheoretica 44 (1):1-21.
    In vitro experimental approaches are of central importance to contemporary molecular and cellular biology and toxicology. However, the scientific value or impact of in vitro results depends on their relevance in vivo. In vitro effect studies address inobservable in vivo phenomena through experiments on analogous in vitro phenomena. We present a theoretical basis developed to evaluate the in vivo relevance of in vitro effect studies. As a case study, the procedure for measuring specific gene transcription in isolated cell nuclei (nuclear (...)
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  3.  56
    The Theory‐Ladenness of Observations, the Role of Scientific Instruments, and the Kantiana Priori.Ragnar Fjelland - 1991 - International Studies in the Philosophy of Science 5 (3):269 – 280.
    Abstract During the last decades it has become widely accepted that scientific observations are ?theory?laden?. Scientists ?see? the world with their theories or theoretical presuppositions. In the present paper it is argued that they ?see? with their scientific instruments as well, as the uses of scientific instruments is an important characteristic of modern natural science. It is further argued that Euclidean geometry is intimately linked to technology, and hence that it plays a fundamental part in the construction and operation of (...)
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  4.  46
    Facing the Problem of Uncertainty.Ragnar Fjelland - 2002 - Journal of Agricultural and Environmental Ethics 15 (2):155-169.
    In a certain sense, uncertainty andignorance have been recognized in science andphilosophy from the time of the Greeks.However, the mathematical sciences have beendominated by the pursuit of certainty.Therefore, experiments under simplified andidealized conditions have been regarded as themost reliable source of knowledge. Normally,uncertainty could be ignored or controlled byapplying probability theory and statistics.Today, however, the situation is different.Uncertainty and ignorance have moved intofocus. In particular, the global character ofsome environmental problems has shown that theproblems cannot be disregarded. Therefore,scientists and technologists (...)
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  5.  4
    Audun Øfsti: Identifikasjon Av Fysiske Og Sosiale Fenomener.Ragnar Fjelland - 2016 - Norsk Filosofisk Tidsskrift 51 (1):38-43.
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  6.  9
    Om forholdet mellom fysikk og biologi.Ragnar Fjelland - forthcoming - Norsk Filosofisk Tidsskrift.
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  7. Praxeology an Anthology.Gunnar Skirbekk & Ragnar Fjelland - 1983
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