Gerard O’Brien

1.4k total citations
41 papers, 986 citations indexed

About

Gerard O’Brien is a scholar working on Plant Science, Ecology and Sociology and Political Science. According to data from OpenAlex, Gerard O’Brien has authored 41 papers receiving a total of 986 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Plant Science, 7 papers in Ecology and 6 papers in Sociology and Political Science. Recurrent topics in Gerard O’Brien's work include Cassava research and cyanide (13 papers), Irish and British Studies (6 papers) and Isotope Analysis in Ecology (6 papers). Gerard O’Brien is often cited by papers focused on Cassava research and cyanide (13 papers), Irish and British Studies (6 papers) and Isotope Analysis in Ecology (6 papers). Gerard O’Brien collaborates with scholars based in United Kingdom, Colombia and Australia. Gerard O’Brien's co-authors include Mark Davies, Dominique Dufour, Fabrice Vaillant, Max Reynes, Martine Decloux, Manuel Dornier, Vadim Leyenson, John M. Travaline, Francis Cordova and Satoshi Furukawa and has published in prestigious journals such as American Journal of Respiratory and Critical Care Medicine, Food Chemistry and Journal of Nutrition.

In The Last Decade

Gerard O’Brien

40 papers receiving 907 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gerard O’Brien United Kingdom	16	300	215	140	114	113	41	986
Maria Antonietta Marcialis Italy	15	118 0.4×	187 0.9×	83 0.6×	54 0.5×	109 1.0×	70	1.1k
Kristien De Paépe Belgium	22	86 0.3×	264 1.2×	72 0.5×	114 1.0×	70 0.6×	60	1.5k
Janet M. Brown United States	22	99 0.3×	150 0.7×	55 0.4×	87 0.8×	19 0.2×	59	1.6k
Leila Khedmat Iran	14	277 0.9×	56 0.3×	128 0.9×	114 1.0×	303 2.7×	44	983
Sushma Sharma India	21	243 0.8×	25 0.1×	153 1.1×	232 2.0×	71 0.6×	87	1.4k
Mehdi Birjandi Iran	17	85 0.3×	46 0.2×	67 0.5×	107 0.9×	42 0.4×	97	990
Stefania Ruggeri Italy	16	142 0.5×	25 0.1×	133 0.9×	109 1.0×	100 0.9×	62	853
A Ingenito Italy	19	173 0.6×	47 0.2×	180 1.3×	63 0.6×	245 2.2×	40	1.2k
Gholamreza Sharifzadeh Iran	19	33 0.1×	49 0.2×	175 1.3×	139 1.2×	26 0.2×	130	1.2k

Countries citing papers authored by Gerard O’Brien

Since Specialization

Citations

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

Fields of papers citing papers by Gerard O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerard O’Brien. 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 Gerard O’Brien. The network helps show where Gerard O’Brien may publish in the future.

Co-authorship network of co-authors of Gerard O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Gerard O’Brien. A scholar is included among the top collaborators of Gerard O’Brien 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 Gerard O’Brien. Gerard O’Brien 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

Hill, Anne‐Marie, et al.. (2025). What influences older people to join a community hub to engage in healthy ageing programs? An exploratory study. Australasian Journal on Ageing. 44(3). e70079–e70079. 1 indexed citations

Shannon, Oliver M., et al.. (2023). Moderate doses of dietary nitrate elicit greater effects on blood pressure and endothelial function than a high dose: A 13-week pilot study. Nutrition Metabolism and Cardiovascular Diseases. 33(6). 1263–1267. 10 indexed citations

O’Brien, Gerard, et al.. (2023). Carrot intake is consistently negatively associated with cancer incidence: A systematic review and meta-analysis of prospective observational studies. Critical Reviews in Food Science and Nutrition. 65(5). 1009–1021. 1 indexed citations

Shannon, Oliver M., Gerard O’Brien, Edward J. Okello, et al.. (2022). Incremental Doses of Nitrate-Rich Beetroot Juice Do Not Modify Cognitive Function and Cerebral Blood Flow in Overweight and Obese Older Adults: A 13-Week Pilot Randomised Clinical Trial. Nutrients. 14(5). 1052–1052. 10 indexed citations

Shannon, Oliver M., Gerard O’Brien, Edward J. Okello, et al.. (2021). Acceptability and Feasibility of a 13-Week Pilot Randomised Controlled Trial Testing the Effects of Incremental Doses of Beetroot Juice in Overweight and Obese Older Adults. Nutrients. 13(3). 769–769. 10 indexed citations

Mota‐Gutierrez, Jatziri & Gerard O’Brien. (2020). Cassava consumption and the occurrence of cyanide in cassava in Vietnam, Indonesia and Philippines. Public Health Nutrition. 23(13). 2410–2423. 4 indexed citations

James, S. Jill, Shaman Jhanji, Andrew Smith, et al.. (2013). Comparison of the prognostic accuracy of scoring systems, cardiopulmonary exercise testing, and plasma biomarkers: a single-centre observational pilot study. British Journal of Anaesthesia. 112(3). 491–497. 40 indexed citations

Duffy, Maresa, Deborah A. Cory‐Slechta, Philip W. Davidson, et al.. (2013). Early-Stage Primary School Children Attending a School in the Malawian School Feeding Program (SFP) Have Better Reversal Learning and Lean Muscle Mass Growth Than Those Attending a Non-SFP School1,2. Journal of Nutrition. 143(8). 1324–1330. 26 indexed citations

Duffy, Maresa, Philip W. Davidson, Deborah A. Cory‐Slechta, et al.. (2012). Nutritional and cognitive status of entry-level primary school children in Zomba, rural Malawi. International Journal of Food Sciences and Nutrition. 64(3). 282–291. 4 indexed citations

10.

O’Brien, Gerard & Mark Davies. (2006). Nutrition knowledge and body mass index. Health Education Research. 22(4). 571–575. 110 indexed citations

11.

Bellotti, Anthony C., et al.. (2003). Cyanogenic Potential in Cassava and Its Influence on a Generalist Insect Herbivore Cyrtomenus bergi (Hemiptera: Cydnidae). Journal of Economic Entomology. 96(6). 1905–1914. 27 indexed citations

12.

O’Brien, Gerard, et al.. (2001). Interns' perceptions of performance and confidence in participating in and managing simulated and real cardiac arrest situations. Medical Teacher. 23(4). 389–395. 30 indexed citations

13.

Vaillant, Fabrice, et al.. (2001). Concentration of passion fruit juice on an industrial pilot scale using osmotic evaporation. Journal of Food Engineering. 47(3). 195–202. 94 indexed citations

14.

O’Brien, Gerard, et al.. (1999). Derry and Londonderry : history & society : interdisciplinary essays on the history of an Irish county. 2 indexed citations

15.

Criner, Gerard J., Francis Cordova, Satoshi Furukawa, et al.. (1999). Prospective Randomized Trial Comparing Bilateral Lung Volume Reduction Surgery to Pulmonary Rehabilitation in Severe Chronic Obstructive Pulmonary Disease. American Journal of Respiratory and Critical Care Medicine. 160(6). 2018–2027. 192 indexed citations

16.

Dufour, Dominique, Gerard O’Brien, & Rupert Best. (1996). Cassava flour and starch: progress in research and development. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research). 72 indexed citations

17.

Gidamis, Andrew B., Gerard O’Brien, & Nigel H. Poulter. (1993). Cassava detoxification of traditional Tanzanian cassava foods. International Journal of Food Science & Technology. 28(2). 211–218. 18 indexed citations

18.

Panigrahi, S., June E. Rickard, Gerard O’Brien, & Cyril G. Gay. (1992). Effects of different rates of drying cassava root on its toxicity to broiler chicks. British Poultry Science. 33(5). 1025–1041. 25 indexed citations

19.

Sack, James J. & Gerard O’Brien. (1989). Anglo-Irish Politics in the Age of Grattan and Pitt. The American Historical Review. 94(4). 1102–1102. 9 indexed citations

20.

O’Brien, Gerard. (1989). Parliament, politics and people : essays in eighteenth-century Irish history. Medical Entomology and Zoology. 9 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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