Punctual indices

To analyze the features of a cognitive map, several social network indices can be calculated. SNA distinguishes among punctual indices, which refer directly to variable issues, and network indices, which describe the characteristics of the system as a whole. 

Two useful punctual indices are in-degree (iDv.) and out-degree (tOv.). The indegree shows the cumulative strength of connections (at.) entering the variable i... 

A more comprehensive analysis of the emerged system and an objective and rational interpretation of the results are allowed by calculating some network and punctual indices. 

Punctual Indices By focusing on the logical meaning of each variable, it is possible to classify the variables among four relevant dimensions. Participants agreed on the following four dimensions (see also on Figure 7.3) ... 

Another punctual index is the centrahty (or total degree) [47] of a variable (C.). It describes the contribution of a variable in a cognitive map showing how connected the variable is to the other variables and the cumulative strength of these connections. This index is calculated as the sum of the variable in-degree and out-degree indices [47—49] ... 

Taking in account some punctual variations, HNO line has higher content in C 16 0, C 18 0 and C18 2 than N one. This last line exhibits higher values in C 18 3 and C 18 1. The evolution of the bond index indicated a similar evolution for both cell lines all along the culture. Except at day 3, HNO callus has an lower bond index than N line. Conclusion... 

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