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References Egghe , L. Ravichandra Rao , I. K. 1992 Citation age data and the obsolescence function: fits and explanations
The relationships between age, mobility and scientific productivity. Part I
Effect of mobility on productivity
Abstract
The main aim of this study is to estimate to what extent the productivity of researchers is influenced by their mobility. Based on emperical data of Dutch scientists it is shown that job mobility is a characteristic of productive scientists rather than a means to enhance productivity. Field mobility appears to stimulate productivity in the long run.
First passage times for pe tu bed andom walks are compa ed to the cor esponding times for its unpertu bed version.A weak and a st ong law of large numbers for their di .erence is established and applied to a special case.
the community. Besides its well-known subject-dependence (cf. Batista et al. 2006 ), the h -index is sensitive to the scientist's academic age as well. In order to compensate for this effect, it was suggested to normalise the individual's h -index
research sphere. Based on the entire set of Québec professors, the present study analyzes the correlations between sex and research funding, publication rate, as well as scientific impact. Since age is an important factor in research (Feist 2006 ; Gingras
Interpretation of Lotkaian Informetric Systems as Self-Similar Fractals . Preprint 2003. Egghe , L. Ravichandra Rao , I. K. 1992 Citation age data and the
Abstract
A computer system combining hypertext and database management technologies is shown to be appropriate with the goals of information analysis. Such a system, HENOCH, designed to easily store any SGML document in a relational database, and to make these data accessible via the World Wide Web is exemplified in the particular case where the stored data is the result of clustering and mapping tools on bibliographic data. The software features of this system (genericity, reusability, extensibility) are explained and justified by the use of the SGML tree structure and the encapsulation of creation and manipulation functions of the relational database management system (RDBMS). The interest of WWW-RDBMS-based user interface is demonstrated by two complementary types of navigation for information analysis: an intuitive exploration mode based on the map metaphor and an assisted searching mode based on the “Who does What, and Where, with Whom” metaphor.
-specific factors, such as firm profitability, firm size and firm age, as well as industry-specific factors, such as sales growth. We adopt the notion of an ‘innovation spell’ to describe the patterns of innovation over time, and empirically examine the determinants
characteristics (e.g. organisational culture, the effectiveness of TTOs and the field of specialisation) and individual characteristics (e.g. age, citizenship and gender), Stephan et al. ( 2007 ) addressed the effects of these characteristics on academic patenting
