Sage Journals: Discover world-class research

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Research article

First published 2013-8

The Herfindahl-Hirschman Index as a decision guide to business concentration: A statistical exploration

George Djolov

Journal of Economic and Social Measurement

Open access

Research article

First published 2021-2

Correlation between pain rating index and end-tidal sevoflurane concentration during sevoflurane anesthesia

Jian-wen Zhang, Zhi-gan Lv, Wei-wei Zhang [...]

Journal of International Medical Research

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Research article

First published 1977-02

A Generalized Index of Concentration

Rein Taagepera, James Lee Ray

Sociological Methods & Research

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Research article

First published 1979-11

The Taagepera-Ray Generalized Index of Concentration

Michael Smithson

Sociological Methods & Research

Open access

Research article

First published 2026-2

Comparison Between Bispectral Index and Minimum Alveolar Concentration as Monitors for Depth of Anaesthesia and Recovery Profile Using Desflurane for General Anaesthesia

Guneet Kaur, Jasmeet Kaur, Arvinpreet Kour [...]

Apollo Medicine

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Research article

First published 2010-1

Modified Herfindahl–Hirschman Index for Measuring the Concentration Degree of Container Port Systems

Yiping Le, Hitoshi Ieda

Transportation Research Record: Journal of the Transportation Research Board

Open access

Research article

First published 2025-7

Total Round Cell Concentration in Semen and Its Association With Sperm DNA Fragmentation Index Among Ghanaian Males in Kumasi

Evans Anokye Kumi, Victor Boachie Owusu, Peter Nyarko Coffie [...]

American Journal of Men's Health

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Research article

First published 2013-1

The Hoover Index of Population Concentration and the Demographic Components of Change

Peter A. Rogerson, David A. Plane

International Regional Science Review

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Research article

First published 1974-3

Indexes of Concentration

Waldo Lombardi

The American Economist

Free access

Research article

First published 1981-3

A Comparison of Free Thyroxine Concentration and the Free Thyroxine Index as Diagnostic Tests of Thyroid Function

J W Tuttlebee, R Bird

Annals of Clinical Biochemistry: International Journal of Laboratory Medicine

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