Node connection strength in Nursing Tree.
Each node in Nursing Tree can be characterized by its mean distance from every other node. Below is a histogram of mean distances for every node in the tree. The final bin includes nodes that are not connected to the main tree. Note also that only individuals whose primary affiliation is this tree are included. Nodes cross-listed from other academic trees are included on their primary tree.

Mean inter-node distance

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Mean distance



20 most tightly coupled nodes.
Below are the Nursing Tree nodes with shortest mean distance.

Rank Mean dist Name Institution Area Date
1 147.27 Alvin F. Chu (Info) Teachers College, Columbia University Public Health, Health Education 2016-03-01
2 147.27 Jose E. Nanin (Info) Teachers College, Columbia University Occupational Health and Safety, Clinical Psychology, Mental Health 2016-03-01
3 147.27 Betty Perez-Rivera (Info) Teachers College, Columbia University Health Education 2016-03-01
4 147.27 Margaret Sukhram (Info) Teachers College, Columbia University Health Education, Public Health 2016-03-01
5 147.27 William Jacobowitz (Info) Teachers College, Columbia University Health Education, Clinical Psychology, Mental Health 2016-03-01
6 147.27 Beatrice L. Bridglall (Info) Teachers College, Columbia University Higher Education, Health Education, Sociology of Education, Bilingual and Multicultural Education 2016-03-01
7 147.27 Portia R. Johnson (Info) Teachers College, Columbia University Health Education, Mass Communications, Ethnic and Racial Studies, Black Studies 2016-03-01
8 147.27 Mary M. Higgins (Info) Teachers College, Columbia University Health Education, Physical Education, Public Health, Ethnic and Racial Studies 2016-03-01
9 147.27 Maria T. Botello Cabrera (Info) Teachers College, Columbia University Public Health, Behavioral Psychology, Social Psychology, Ethnic and Racial Studies 2016-03-01
10 147.27 Annlee Burch (Info) Teachers College, Columbia University Education, Rehabilitation and Therapy 2016-03-01
11 147.27 Olivia Q. Copeland (Info) Teachers College, Columbia University Public Health, Behavioral Psychology, Black Studies, Ethnic and Racial Studies, Hispanic American Studies 2016-03-01
12 147.27 Rose E. Murray (Info) Teachers College, Columbia University Nursing, Ethnic and Racial Studies 2016-03-01
13 147.27 Sabrina Salvant (Info) Teachers College, Columbia University Health Education 2016-03-01
14 147.27 Karyn E. Faber (Info) Teachers College, Columbia University Health Education, Women's Studies, Clinical Psychology, Gerontology, Public Health 2016-03-01
15 147.27 Jessica Adams-Skinner (Info) Teachers College, Columbia University Health Education, Public Health, Nursing 2016-03-01
16 147.27 Brenda A. Adjei (Info) Teachers College, Columbia University Health Education, Public Health, Oncology, Black Studies 2016-03-01
17 147.27 Ranelle L. Brew (Info) Teachers College, Columbia University Public Health 2016-03-01
18 147.27 Angela Buxton-Campbell (Info) Teachers College, Columbia University Health Education, Curriculum and Instruction Education, Black Studies 2016-03-01
19 147.27 Dahlia E. Henry (Info) Teachers College, Columbia University Health Education 2016-03-01
20 147.27 Tamara A. Henry (Info) Teachers College, Columbia University Health Education, Behavioral Psychology, Black Studies, Hispanic American Studies 2016-03-01


Distribution of individual connectivity.
Another way to look at the Nursing Tree graph is to plot a histogram of researchers (nodes) based according to the number of immediate connections (edges) they have to other researchers. The final bin includes nodes with 16 or more connections. The actual distribution has a very long tail, with a maximum of 82 connections. Thanks to Adam Snyder for suggesting this analysis!

Edge vs node distribution

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16+
Number of connections
 Node count