The phrase "a index of" is not correct; it should be "an index of." You can use it when referring to a list or catalog of items, typically in a formal or academic context.
Example: "The library provides an index of all available resources for research purposes."
Alternatives: "a list of" or "a catalog of".
Below, I've plotted the past year's worth of daily Google search interest in these five terms, which I've aggregated into a index of misery.
After statistical analysis, the number of pores (N), surface area (A), index of connectivity (Ic) and shape factor (Sf) are proposed as indicators to be monitored in the study of Technosol porosity evolution.
Foreword Acknowledgments Introduction Chapters I Commercial Sound Recordings II Pseudonymous and Anonymous Recordings III Experimental Bell Labs Recordings IV Films and Videos V Live Recordings and Pirates VI Downloads VII Ensembles of the Philadelphia Orchestra Appendices A Index of Composers B Index of Conductors C Index of Soloists D Collections Bibliography About the Author.
Among other characteristics, KAOG constructs a network through a local optimization structure based on a index of purity, which measures the compactness of the graph components.
Then, the probability of the α3 methionines to undergo oxidation, which relates to their exposure to oxidants or in general to solvent, can be taken as a index of the acquisition of pro-aggregating features.
Calculation of the mitotic index by analysis of condensed chromosomes showed that noc-cells presented a index of approximately 50% whereas after treatment with CHX or ActD the mitotic index decreased to values of approximately 10%, corresponding to a fold decrease of approximately 80% (p<0.01, noc-CHX and noc-ActD cells compared to noc-cells) (Fig. 1C).
