Declan OʼCallaghan

2.1k total citations
7 papers, 107 citations indexed

About

Declan OʼCallaghan is a scholar working on Cardiology and Cardiovascular Medicine, Agronomy and Crop Science and Complementary and alternative medicine. According to data from OpenAlex, Declan OʼCallaghan has authored 7 papers receiving a total of 107 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Cardiology and Cardiovascular Medicine, 3 papers in Agronomy and Crop Science and 2 papers in Complementary and alternative medicine. Recurrent topics in Declan OʼCallaghan's work include Reproductive Physiology in Livestock (3 papers), Ruminant Nutrition and Digestive Physiology (3 papers) and Genetic and phenotypic traits in livestock (2 papers). Declan OʼCallaghan is often cited by papers focused on Reproductive Physiology in Livestock (3 papers), Ruminant Nutrition and Digestive Physiology (3 papers) and Genetic and phenotypic traits in livestock (2 papers). Declan OʼCallaghan collaborates with scholars based in Ireland and United Kingdom. Declan OʼCallaghan's co-authors include M. Rath, S. Snijders, K.J. O’Farrell, A.R.G. Wylie, M.P. Boland, P. Dillon, M.G. Diskin, John J. Murphy, John F. Mee and Guy A. MacGowan and has published in prestigious journals such as CHEST Journal, Theriogenology and Animal Reproduction Science.

In The Last Decade

Declan OʼCallaghan

7 papers receiving 89 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Declan OʼCallaghan Ireland	4	92	75	21	7	6	7	107
René Carlos Calderón Robles Mexico	6	46 0.5×	50 0.7×	34 1.6×	3 0.4×	8 1.3×	19	124
Toomas Tiirats Estonia	4	52 0.6×	26 0.3×	17 0.8×	6 0.9×	4 0.7×	4	79
Amy S. Garst United States	4	99 1.1×	72 1.0×	21 1.0×	57 8.1×	8 1.3×	6	123
Michaela Rogers United Kingdom	3	43 0.5×	15 0.2×	21 1.0×	3 0.4×		6	58
L. R. Wallace Nepal	5	42 0.5×	38 0.5×	5 0.2×	5 0.7×	9 1.5×	9	72
Lucilla Gregoretti Switzerland	3	47 0.5×	35 0.5×	25 1.2×			6	68
A. Risso Argentina	6	31 0.3×	11 0.1×	13 0.6×	10 1.4×	3 0.5×	13	101
Ludwig Wolff United States	2	48 0.5×	29 0.4×	47 2.2×	11 1.6×		8	79
W.L. Gaines United States	3	45 0.5×	18 0.2×	18 0.9×			8	73
Fred F. McKenzie United States	5	28 0.3×	19 0.3×	17 0.8×	6 0.9×	1 0.2×	8	62

Countries citing papers authored by Declan OʼCallaghan

Since Specialization

Citations

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

Fields of papers citing papers by Declan OʼCallaghan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Declan OʼCallaghan. 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 Declan OʼCallaghan. The network helps show where Declan OʼCallaghan may publish in the future.

Co-authorship network of co-authors of Declan OʼCallaghan

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

All Works

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7 of 7 papers shown

1.

McNamara, S., et al.. (2005). Effects of diets fed to dairy cows before and after calving on their plasma progesterone profiles after calving. Veterinary Record. 156(16). 505–509. 2 indexed citations

2.

Mee, John F., et al.. (2002). Effects of calcium salts of fatty acids and calcium salt of methionine hydroxy analogue on plasma prostaglandin F2α metabolite and milk fatty acid profiles in late lactation Holstein–Friesian cows. Theriogenology. 58(8). 1471–1482. 23 indexed citations

3.

Snijders, S., P. Dillon, K.J. O’Farrell, et al.. (2001). Genetic merit for milk production and reproductive success in dairy cows. Animal Reproduction Science. 65(1-2). 17–31. 73 indexed citations

4.

McGee, Hannah, et al.. (1995). Factors associated with delay to treatment for acute myocardial infarction in Ireland.. PubMed. 87(6). 187, 168–187, 168. 3 indexed citations

5.

MacGowan, Guy A., et al.. (1992). The effects of captopril on training in patients with ischemic heart disease. Clinical Cardiology. 15(5). 330–334. 1 indexed citations

6.

MacGowan, Guy A., et al.. (1992). The Effects of Verapamil on Training in Patients with Ischemic Heart Disease. CHEST Journal. 101(2). 411–415. 3 indexed citations

7.

MacGowan, Guy A., et al.. (1991). Medical management of acute myocardial infarction in Ireland: Information from the second international study of infarct survival (ISIS - 2). Irish Journal of Medical Science (1971 -). 160(11). 347–349. 2 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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