General results on transformations on information production processes (IPPs), involving transformations of the h-index and related indices, are applied in concrete, simple cases: doubling the production per source, doubling the number of sources, doubling the number of sources but halving their production, halving the number of sources but doubling their production (fusion of sources) and, fin...

or many years journal impact factor has been used for the evaluation of researchers and research centers. After proposal of h-index by Hirsch, this metric has soon found its place and currently many authorities use it as a substitute for the journal impact factor for assessing the researchers and research centers or even journals. The Iranian Ministry of Health has recently decided to evaluate ...

ABSTRACT Physical activity is known to influence and regulate leptin hormone secretion, which assists in the regulation of body weight and energy homeostasis. The purpose of the present study was to investigate the effects of a single session of concurrent exercise on leptin levels and insulin resistance, until 24 h post-exercise. Ten male subjects (22.9±1.7 years) healthy volunteer perf...

Purpose – The single publication h index has been introduced by Schubert as the h index calculated from the list of citing publications of one single publication. This paper aims to look at the calculation of the single publication h index and related performance measures. Design/methodology/approach – In this paper a web application is presented where the single publication h index and related...

Jorge Hirsch (2005) proposed the h-index (or Hirschindex) as a tool for quantifying the scientific productivity and the scientific impact of an individual researcher: “A scientist has index h if h of his or her n articles have at least h citations each, whereas the other n− h articles have at most h citations each.” The main strength (and perhaps the main weakness) of the Hirsch-index is that i...

The time dependence of the h-index is analyzed by considering the average behaviour of h as a function of the academic age AA for about 1400 Italian physicists, with career lengths spanning from 3 to 46 years. The individual h-index is strongly correlated with the square root of the total citations NC : h ≈ 0.53 √ NC . For academic ages ranging from 12 to 24 years, the distribution of the time ...