Eco-Systems Mapping and Forecasting of Techno-Science Linkages at the Level of Scholarly Journals and Fields

27 Pages Posted: 17 Oct 2019

See all articles by Xiaozan Lyu

Xiaozan Lyu

affiliation not provided to SSRN

Ping Zhou

Zhejiang University

Loet Leydesdorff

University of Amsterdam - Amsterdam School of Communication Research (ASCoR)

Date Written: October 8, 2019

Abstract

Based on the number of references to patents aggregated at the level of journals, we develop two indicators of linkages between the sciences and technologies: patent intensity (PI) and patent density (PD). Journal maps can be overlaid with the values of PD and PI so that the portfolios can visually be identified and analytically be compared across fields. Distributions of techno-science linkages among journals and groups of journals are analyzed. Chemistry and Nano Science are the most prominent fields in patent references, but these linkages show declining trends. The continuity in terms of citing patents in successive years in these two fields are significantly higher than in other fields. Nano Science is composed of eight subfields, among which the chemistry-related subfields have the highest percentage of journals citing patents in successive years. Patent citations are very specific in domains other than Chemistry and Nano Science; patent citation in the Social Sciences, however, is above expectation.

Keywords: References to patents; Journal maps; Overlay; Science-technology interface

Suggested Citation

Lyu, Xiaozan and Zhou, Ping and Leydesdorff, Loet, Eco-Systems Mapping and Forecasting of Techno-Science Linkages at the Level of Scholarly Journals and Fields (October 8, 2019). Available at SSRN: https://ssrn.com/abstract=3466058 or http://dx.doi.org/10.2139/ssrn.3466058

Xiaozan Lyu

affiliation not provided to SSRN

Ping Zhou (Contact Author)

Zhejiang University ( email )

No 866 Yuhangtang Road
Hangzhou, Zhejiang 310058
China

Loet Leydesdorff

University of Amsterdam - Amsterdam School of Communication Research (ASCoR) ( email )

PO Box 15793
Amsterdam, 1001 NG
Netherlands

HOME PAGE: http://www.leydesdorff.net

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