This map shows the geographic impact of Nigel Calder's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Nigel Calder with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nigel Calder more than expected).
This network shows the impact of papers produced by Nigel Calder. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Nigel Calder. The network helps show where Nigel Calder may publish in the future.
Co-authorship network of co-authors of Nigel Calder
This figure shows the co-authorship network connecting the top 25 collaborators of Nigel Calder.
A scholar is included among the top collaborators of Nigel Calder based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Nigel Calder. Nigel Calder is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Calder, Nigel & Carol Murphy. (2018). Using Apps for Teaching and Learning Mathematics: A Sociotechnological Assemblage.. Research Commons (University of Waikato). 194–201.5 indexed citations
7.
Calder, Nigel, et al.. (2015). "You Play on Them. They're Active." Enhancing the Mathematics Learning of Reluctant Teenage Students.. Mathematics Education Research Group of Australasia.1 indexed citations
8.
Calder, Nigel, et al.. (2013). Child-Centred Inquiry Learning: How Mathematics Understanding Emerges..3 indexed citations
9.
Calder, Nigel, et al.. (2012). Mathematics as It Happens: Student-Centred Inquiry Learning.. Mathematics Education Research Group of Australasia.3 indexed citations
10.
Calder, Nigel, et al.. (2010). "Scratch"ing below the Surface: Mathematics through an Alternative Digital Lens?. Mathematics Education Research Group of Australasia. 2010(1).3 indexed citations
11.
Calder, Nigel. (2010). Using Scratch: An Integrated Problem-Solving Approach to Mathematical Thinking.. Australian primary mathematics classroom/Australian primary mathematics classroom (Online). 15(4). 9–14.75 indexed citations
12.
Calder, Nigel. (2009). Affordances of Spreadsheets In Mathematical Investigation: Potentialities For Learning. SHILAP Revista de lepidopterología.
13.
Svensmark, Henrik & Nigel Calder. (2008). The chilling stars : a cosmic view of climate change.4 indexed citations
14.
Calder, Nigel. (2005). Einstein's universe : the layperson's guide. CERN Document Server (European Organization for Nuclear Research).1 indexed citations
15.
Calder, Nigel. (1979). Einstein's universe. Bulletin of Miscellaneous Information (Royal Gardens Kew).12 indexed citations
16.
Calder, Nigel. (1977). The key to the universe : a report on the new physics. CERN Document Server (European Organization for Nuclear Research).2 indexed citations
17.
Calder, Nigel. (1972). The Restless Earth.5 indexed citations
18.
Calder, Nigel. (1968). Vor uns das Paradies? : Entwurf eines gelobten Landes.
19.
Calder, Nigel. (1968). Unless peace comes : a scientific forecast of new weapons. Virtual Defense Library (Ministerio de Defensa).6 indexed citations
20.
Calder, Nigel. (1965). The world in 1984. Penguin Books.5 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.