James A. Ker

451 total citations
34 papers, 276 citations indexed

About

James A. Ker is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, James A. Ker has authored 34 papers receiving a total of 276 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Cardiology and Cardiovascular Medicine, 5 papers in Surgery and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in James A. Ker's work include Cardiac electrophysiology and arrhythmias (4 papers), Heart Rate Variability and Autonomic Control (4 papers) and Cardiovascular Function and Risk Factors (3 papers). James A. Ker is often cited by papers focused on Cardiac electrophysiology and arrhythmias (4 papers), Heart Rate Variability and Autonomic Control (4 papers) and Cardiovascular Function and Risk Factors (3 papers). James A. Ker collaborates with scholars based in South Africa. James A. Ker's co-authors include Ronald Anderson, Annette J. Theron, Catharina C. Grant, Lizelle Fletcher, Dina C. Janse van Rensburg, Paul Rheeder, Pieter Meyer, Gregory R. Tintinger, T Mokoena and Nadia Falzone and has published in prestigious journals such as SHILAP Revista de lepidopterología, Biochemical Pharmacology and Clinical Rheumatology.

In The Last Decade

James A. Ker

31 papers receiving 269 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
James A. Ker South Africa 10 66 56 46 41 38 34 276
Jan Abrahamsen Denmark 11 55 0.8× 42 0.8× 62 1.3× 14 0.3× 11 0.3× 39 323
Tiziano Lucchi Italy 13 104 1.6× 91 1.6× 46 1.0× 10 0.2× 6 0.2× 43 401
Sezin Bingöl Türkiye 9 70 1.1× 83 1.5× 54 1.2× 75 1.8× 3 0.1× 11 392
Alicia K. Heath United Kingdom 11 42 0.6× 66 1.2× 40 0.9× 32 0.8× 3 0.1× 27 436
Jean-Bernard Ruidavets France 7 58 0.9× 30 0.5× 40 0.9× 30 0.7× 2 0.1× 9 303
M Magott Poland 5 27 0.4× 40 0.7× 60 1.3× 31 0.8× 2 0.1× 5 322
Duška Glavaš Croatia 10 135 2.0× 62 1.1× 63 1.4× 8 0.2× 3 0.1× 27 315
Ivo Martinović Germany 7 115 1.7× 25 0.4× 36 0.8× 14 0.3× 3 0.1× 20 370
Anu Kemppinen United Kingdom 11 12 0.2× 127 2.3× 41 0.9× 15 0.4× 6 0.2× 16 330
K Kumano Japan 9 126 1.9× 49 0.9× 55 1.2× 23 0.6× 10 0.3× 23 711

Countries citing papers authored by James A. Ker

Since Specialization
Citations

This map shows the geographic impact of James A. Ker'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 James A. Ker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James A. Ker more than expected).

Fields of papers citing papers by James A. Ker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James A. Ker. 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 James A. Ker. The network helps show where James A. Ker may publish in the future.

Co-authorship network of co-authors of James A. Ker

This figure shows the co-authorship network connecting the top 25 collaborators of James A. Ker. A scholar is included among the top collaborators of James A. Ker 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 James A. Ker. James A. Ker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ker, James A., et al.. (2019). Burning issues in the prevention of heart failure. SHILAP Revista de lepidopterología. 61(4). 11–12.
2.
Meyer, Pieter, et al.. (2018). Rheumatoid arthritis and risk of cardiovascular disease. Cardiovascular journal of South Africa. 29(5). 317–321. 38 indexed citations
3.
Ker, James A.. (2015). Acute heart failure syndrome. South African Family Practice. 57(1). 51–52. 2 indexed citations
4.
Ker, James A.. (2012). Management of chronic obstructive pulmonary disease : review. Pharmacy management. 79(7). 17–19. 1 indexed citations
5.
Ker, James A.. (2012). Coronary artery disease: medical therapy. UpSpace Institutional Repository (University of Pretoria). 79(3). 14–16. 1 indexed citations
6.
Rensburg, Dina C. Janse van, James A. Ker, Catharina C. Grant, & Lizelle Fletcher. (2012). Effect of exercise on cardiac autonomic function in females with rheumatoid arthritis. Clinical Rheumatology. 31(8). 1155–1162. 25 indexed citations
7.
Ker, James A.. (2011). Hypertension : review article. South African Family Practice. 53(4). 336–339.
8.
Ker, James A., et al.. (2010). The reliability of chest radiographs in predicting left atrial enlargement. Cardiovascular journal of South Africa. 21(5). 274–279. 2 indexed citations
9.
Ker, James A., et al.. (2010). Carboxyhaemoglobin levels in water-pipe and cigarette smokers. South African Medical Journal. 100(2). 122–122. 15 indexed citations
10.
Ker, James A.. (2009). From Bowditch to beta-blockers: evolution of the understanding of the importance of heart rate and myocardial energetics in cardiomyopathy - with reference to : a comparison of stimulation frequency and electro-augmentation on myocardial function, extensibility, coronary flow rate, oxygen consumption and glucose metabolism.. PubMed. 20(1). 37–8. 4 indexed citations
11.
Ker, James A., et al.. (2008). Decision-making using absolute cardiovascular risk reduction and incremental cost-effectiveness ratios : a case study. UpSpace Institutional Repository (University of Pretoria). 7 indexed citations
12.
Tintinger, Gregory R., et al.. (2008). Soluble Triggering Receptor Expressed on Myeloid Cells in Patients With Suspected Meningitis, Peritonitis, or Pleuritis. Infectious Diseases in Clinical Practice. 16(3). 157–162. 2 indexed citations
13.
Ker, James A., et al.. (2007). Frequency of the metabolic syndrome in screened South African corporate executives.. PubMed. 18(1). 30–3. 14 indexed citations
14.
Deffur, Armin, et al.. (2006). NT-proBNP measurements in high-risk diabetic patients--a case series from Mamelodi (Gauteng).. PubMed. 17(2). 56–9. 1 indexed citations
15.
Ker, James, et al.. (2003). The heart remembers : observations of cardiac memory in the Dorper sheep heart. Onderstepoort Journal of Veterinary Research. 70(4). 299–305. 3 indexed citations
16.
Ker, James A. & James Ker. (2003). Antithrombotic therapy in clinical practice. SHILAP Revista de lepidopterología. 45(3). 4–4. 2 indexed citations
17.
Rheeder, Paul & James A. Ker. (2002). What is wrong with my patient? How to read an article concerning diagnosis.. PubMed. 92(2). 144–8. 1 indexed citations
18.
19.
20.
Ker, James A., et al.. (2000). Tracheobronchomegaly Associated with Recurrent Pneumonia. Tropical Doctor. 30(4). 242–243. 1 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.

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