P. D. Sayer

585 total citations
34 papers, 463 citations indexed

About

P. D. Sayer is a scholar working on Epidemiology, Infectious Diseases and Public Health, Environmental and Occupational Health. According to data from OpenAlex, P. D. Sayer has authored 34 papers receiving a total of 463 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Epidemiology, 7 papers in Infectious Diseases and 5 papers in Public Health, Environmental and Occupational Health. Recurrent topics in P. D. Sayer's work include Trypanosoma species research and implications (12 papers), Vector-borne infectious diseases (5 papers) and Research on Leishmaniasis Studies (5 papers). P. D. Sayer is often cited by papers focused on Trypanosoma species research and implications (12 papers), Vector-borne infectious diseases (5 papers) and Research on Leishmaniasis Studies (5 papers). P. D. Sayer collaborates with scholars based in Kenya, Nigeria and United States. P. D. Sayer's co-authors include H. Schmidt, Max Murray, W. Ivan Morrison, John Preston, R. S. Brodey, R. G. Thomson, Henry C. Nathan, Cyrus J. Bacchi, Ross D. Dolan and Anthony J. Wilson and has published in prestigious journals such as Antimicrobial Agents and Chemotherapy, Plastic & Reconstructive Surgery and Veterinary Parasitology.

In The Last Decade

P. D. Sayer

31 papers receiving 422 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P. D. Sayer Kenya	13	238	161	88	83	72	34	463
H. L. Lenzi Brazil	17	139 0.6×	124 0.8×	111 1.3×	144 1.7×	33 0.5×	25	526
M. Murray United Kingdom	11	194 0.8×	119 0.7×	19 0.2×	77 0.9×	24 0.3×	19	353
Stephenson W. Nkinin Cameroon	11	431 1.8×	264 1.6×	107 1.2×	202 2.4×	22 0.3×	15	619
Harry Rozmiarek United States	10	55 0.2×	39 0.2×	49 0.6×	63 0.8×	59 0.8×	19	458
Dianne M. Ritter United States	11	148 0.6×	144 0.9×	95 1.1×	398 4.8×	50 0.7×	15	574
Anthony L. Newsome United States	11	131 0.6×	117 0.7×	65 0.7×	64 0.8×	239 3.3×	22	617
Rob Bildfell United States	12	125 0.5×	27 0.2×	51 0.6×	50 0.6×	61 0.8×	23	408
Frank Ebert Germany	14	178 0.7×	198 1.2×	249 2.8×	247 3.0×	102 1.4×	37	593
Mary C. Scott United States	15	132 0.6×	183 1.1×	150 1.7×	113 1.4×	200 2.8×	18	667
Joanna Błaszkowska Poland	11	169 0.7×	75 0.5×	174 2.0×	172 2.1×	58 0.8×	36	558

Countries citing papers authored by P. D. Sayer

Since Specialization

Citations

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

Fields of papers citing papers by P. D. Sayer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. D. Sayer. 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 P. D. Sayer. The network helps show where P. D. Sayer may publish in the future.

Co-authorship network of co-authors of P. D. Sayer

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

All Works

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20 of 20 papers shown

Bishop, Richard P., et al.. (2019). THEILERIOSIS IN MOUNTAIN BONGO REPATRIATED TO KENYA: A CLINICAL AND MOLECULAR INVESTIGATION. Journal of Zoo and Wildlife Medicine. 50(2). 342–342. 3 indexed citations

Sayer, P. D., et al.. (2000). Focus groups for rat management. eCite Digital Repository (University of Tasmania).

Sayer, P. D., et al.. (2000). Neophobia in Rattus sordidus confirmed by video. eCite Digital Repository (University of Tasmania).

Ndung’u, Joseph Mathu, et al.. (1994). Total Protein and White Cell Changes in the Cerebrospinal Fluid of Vervet Monkeys Infected with Trypanosoma rhodesiense and the Post-treatment Reaction. Obihiro University of Agriculture and Veterinary Medicine Institutional Repository. 4(4). 124–135. 7 indexed citations

Stevenson, P., et al.. (1990). Homidium bromide as a chemoprophylactic for cattle trypanosomiasis in Kenya. Acta Tropica. 47(3). 137–144. 21 indexed citations

Zweygarth, Erich, Ronald Kaminsky, P. D. Sayer, & Simon Van Nieuwenhove. (1990). Synergistic activity of 5-substituted 2-nitroimidazoles (Ro 15-0216 and benznidazole) and DL-alpha-difluoromethylornithine on Trypanosoma brucei brucei.. PubMed. 70(4). 269–79. 4 indexed citations

Bacchi, Cyrus J., et al.. (1990). Differential susceptibility to DL-alpha-difluoromethylornithine in clinical isolates of Trypanosoma brucei rhodesiense. Antimicrobial Agents and Chemotherapy. 34(6). 1183–1188. 65 indexed citations

Pearson, Terry W., et al.. (1988). Serodiagnosis of African sleeping sickness in vervet monkeys by detection of parasite antigens. PubMed. 45(4). 321–30. 6 indexed citations

Waitumbi, John, et al.. (1988). Evidence of blood cerebrospinal fluid barrier permeability impairment in Trypanosoma rhodesiense infection in vervet monkeys.. PubMed. 81(3 Pt 2). 502–5. 4 indexed citations

10.

Varma, Sandeep, et al.. (1985). Cryosurgery of bovine squamous cell carcinoma of the vulva. Veterinary Record. 117(20). 518–520. 6 indexed citations

11.

Poltera, A.A., et al.. (1985). Immunopathological aspects of trypanosomal meningoencephalitis in vervet monkeys after relapse following BerenilR treatment. Transactions of the Royal Society of Tropical Medicine and Hygiene. 79(4). 527–531. 15 indexed citations

12.

Suleman, Mbaruk A., B. J. Johnson, Ross P. Tarara, et al.. (1984). An outbreak of poliomyelitis caused by poliovirus type I in captive black and white colobus monkeys (Colobus abyssinicus kikuyuensis) in Kenya. Transactions of the Royal Society of Tropical Medicine and Hygiene. 78(5). 665–669. 3 indexed citations

13.

Sayer, P. D., et al.. (1983). IgG and IgM--levels in serum and CSF of T. rhodesiense-infected vervet monkeys.. PubMed. 7. 183–9. 6 indexed citations

14.

Schmidt, H. & P. D. Sayer. (1982). Trypanosoma brucei rhodesiense infection in vervet monkeys. II. Provocation of the encephalitic late phase by treatment of infected monkeys.. PubMed. 33(4). 255–9. 24 indexed citations

15.

Schmidt, H. & P. D. Sayer. (1982). Trypanosoma brucei rhodesiense infection in vervet monkeys. I. Parasitologic, hematologic, immunologic and histologic results.. PubMed. 33(4). 249–54. 15 indexed citations

16.

Morrison, W. Ivan, Max Murray, P. D. Sayer, & John Preston. (1981). The pathogenesis of experimentally induced Trypanosoma brucei infection in the dog. II. Change in the lymphoid organs.. PubMed. 102(2). 182–94. 14 indexed citations

17.

Grootenhuis, J.G., W. Ivan Morrison, L. Karstad, et al.. (1980). Fatal theileriosis in eland (Taurotragus oryx): pathology of natural and experimental cases. Research in Veterinary Science. 29(2). 219–229. 17 indexed citations

18.

Brodey, R. S., et al.. (1977). Spiroceca lupi infection in dogs in Kenya. Veterinary Parasitology. 3(1). 49–59. 34 indexed citations

19.

Elsworth, R., et al.. (1968). Production of Escherichia coli as a source of nucleic acids. Journal of Applied Chemistry. 18(6). 157–166. 34 indexed citations

20.

Sayer, P. D.. (1968). Production of Alkaline Phosphatase from Escherichia coli in Continuous Culture. Applied Microbiology. 16(2). 326–329. 10 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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