1,721,012 research outputs found
Methods, Models, Simulations and Approaches Towards A General Theory of Change
No full textRaccolta di contributi sugli aspetti sistemici di una teoria generale del cambiament
Thermodynamical and Logical Openness in General Systems
No full textIn this paper we propose a theory of logically open systems. These latter coincide with systems in metastable equilibrium with the environment, in which the system-environment interaction cannot be described, as a principle, without taking into account the inner state of the systems themselves. We introduce a particular hierarchy of these systems and we prove some results relative to the limitations encountered when dealing with them. We derive an undescribability principle which applies to logically open systems at the top of this hierarchy. Besides, we suggest a strategy for coping with these limitations and we sketch some possible applications of our theory to concrete cases. © 1998 John Wiley & Sons, Ltd
Systemics of Emergence. Research and Development
No full textRaccolta di contributi sul ruolo dei processi di emergenza e auto-organizzazione nella teoria dei sistem
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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