D.P. Ryan

468 total citations
7 papers, 386 citations indexed

About

D.P. Ryan is a scholar working on Agronomy and Crop Science, Public Health, Environmental and Occupational Health and General Health Professions. According to data from OpenAlex, D.P. Ryan has authored 7 papers receiving a total of 386 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Agronomy and Crop Science, 3 papers in Public Health, Environmental and Occupational Health and 2 papers in General Health Professions. Recurrent topics in D.P. Ryan's work include Reproductive Physiology in Livestock (3 papers), Psychosomatic Disorders and Their Treatments (2 papers) and Reproductive Biology and Fertility (2 papers). D.P. Ryan is often cited by papers focused on Reproductive Physiology in Livestock (3 papers), Psychosomatic Disorders and Their Treatments (2 papers) and Reproductive Biology and Fertility (2 papers). D.P. Ryan collaborates with scholars based in Canada and United States. D.P. Ryan's co-authors include Graeme J. Taylor, R. Michael Bagby, Kenneth Doody, John D. Parker, R.A. Godke, R. Michael Bagby, Rory H. Fisher, Bernard Marlow, J. W. Lynn and L. Munyakazi and has published in prestigious journals such as New England Journal of Medicine, Psychosomatic Medicine and Journal of Animal Science.

In The Last Decade

D.P. Ryan

7 papers receiving 348 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D.P. Ryan Canada	7	240	123	78	60	60	7	386
Figen Karadağ Türkiye	11	321 1.3×	268 2.2×	50 0.6×	45 0.8×	52 0.9×	16	501
G. Kockott Germany	12	273 1.1×	214 1.7×	47 0.6×	187 3.1×	44 0.7×	33	590
María José Cortés Spain	12	125 0.5×	104 0.8×	26 0.3×	19 0.3×	39 0.7×	18	306
Radovan Hrubý Slovakia	12	118 0.5×	129 1.0×	37 0.5×	83 1.4×	18 0.3×	21	293
Alison Bury Canada	10	154 0.6×	177 1.4×	43 0.6×	35 0.6×	21 0.3×	14	430
K. Gilvarry United Kingdom	6	285 1.2×	140 1.1×	39 0.5×	46 0.8×	36 0.6×	11	388
Rebecca Lancaster United States	12	334 1.4×	256 2.1×	73 0.9×	63 1.1×	23 0.4×	24	567
L. M. C. van den Bosch Netherlands	13	171 0.7×	614 5.0×	58 0.7×	72 1.2×	45 0.8×	27	756
Özay Özdemir Türkiye	10	246 1.0×	391 3.2×	131 1.7×	24 0.4×	33 0.6×	13	540
Jason E. Peer United States	8	185 0.8×	92 0.7×	69 0.9×	38 0.6×	24 0.4×	18	330

Countries citing papers authored by D.P. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by D.P. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

Sort: Min cites: Since: Top N: Style:

7 of 7 papers shown

1.

Demetri, George D., Ross L. Titton, D.P. Ryan, & Christopher D.�M. Fletcher. (2004). Case 32-2004. New England Journal of Medicine. 351(17). 1779–1787. 6 indexed citations

2.

Ryan, D.P., Bernard Marlow, & Rory H. Fisher. (2002). Educationally influential physicians: The need for construct validation. Journal of Continuing Education in the Health Professions. 22(3). 160–169. 25 indexed citations

3.

Ryan, D.P., et al.. (1993). Using hormone-treated pregnant cows as a potential source of oocytes for in vitro fertilization. Theriogenology. 40(5). 1039–1055. 11 indexed citations

4.

Ryan, D.P., et al.. (1992). Effect of heat-stress on bovine embryo development in vitro. Journal of Animal Science. 70(11). 3490–3497. 42 indexed citations

5.

Ryan, D.P., et al.. (1990). The use of follicle stimulating hormone (FSH) to stimulate follicle development for in vitro fertilization during the first trimester of pregnancy in cattle. Theriogenology. 33(1). 315–315. 9 indexed citations

6.

Taylor, Graeme J., et al.. (1988). Criterion validity of the Toronto Alexithymia Scale.. Psychosomatic Medicine. 50(5). 500–509. 265 indexed citations

7.

Bagby, R. Michael, Graeme J. Taylor, & D.P. Ryan. (1986). The measurement of alexithymia: Psychometric properties of the Schalling-Sifneos Personality Scale. Comprehensive Psychiatry. 27(4). 287–294. 28 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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