James Calva

583 total citations
44 papers, 427 citations indexed

About

James Calva is a scholar working on Plant Science, Food Science and Pharmacology. According to data from OpenAlex, James Calva has authored 44 papers receiving a total of 427 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Plant Science, 26 papers in Food Science and 10 papers in Pharmacology. Recurrent topics in James Calva's work include Essential Oils and Antimicrobial Activity (26 papers), Phytochemistry and Biological Activities (18 papers) and Cholinesterase and Neurodegenerative Diseases (10 papers). James Calva is often cited by papers focused on Essential Oils and Antimicrobial Activity (26 papers), Phytochemistry and Biological Activities (18 papers) and Cholinesterase and Neurodegenerative Diseases (10 papers). James Calva collaborates with scholars based in Ecuador, France and Iraq. James Calva's co-authors include Ángel Benítez, Chabaco Armijos, Luis Cartuche, Nicole Bec, Christian Larroque, Eduardo Valarezo, Vladimir Morocho, Giovanni Vidari, Oscar Herrera-Calderón and Jorge Luis Arroyo-Acevedo and has published in prestigious journals such as Molecules, Journal of Ethnopharmacology and Applied Sciences.

In The Last Decade

James Calva

39 papers receiving 423 citations

Peers

James Calva

EEBS

PHARM

Sawsan A. Oran Jordan

Matteo Marieschi Italy

Malay Bhattacharya India

Laura Scalvenzi Ecuador

Hongyu Jin China

María Laura Colombo Italy

Renata Jurišić Grubešić Croatia

Malika Bennaceur Algeria

Mehmet Fırat Türkiye

Gian Pietro Molinari Italy

Sawsan A. Oran Jordan

James Calva

254 ×1.1

166 ×0.8

127 ×1.4

27 ×0.4

EEBS

53 ×0.9

PHARM

Citations per year, relative to James Calva James Calva (= 1×) peers Sawsan A. Oran

Countries citing papers authored by James Calva

Since Specialization

Citations

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

Fields of papers citing papers by James Calva

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James Calva

This figure shows the co-authorship network connecting the top 25 collaborators of James Calva. A scholar is included among the top collaborators of James Calva 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 Calva. James Calva 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

Maldonado, J., et al.. (2025). Comparative Study of the Chemical Composition of the Essential Oil of Plectranthus amboinicus from Different Sectors of Southern Ecuador. Horticulturae. 11(2). 173–173.

Calva, James, et al.. (2025). Heavy Metal Contamination in Arenillas Ecological Reserve Soils: Correlation and Conservation Impact. Land Degradation and Development. 36(10). 3454–3471. 1 indexed citations

Calva, James, et al.. (2024). Chemical Analysis of the Essential Oils from Three Populations of Lippia dulcis Trevir. Grown at Different Locations in Southern Ecuador. Plants. 13(2). 253–253. 1 indexed citations

Arroyo-Acevedo, Jorge Luis, et al.. (2024). Evaluation of Bioactive Compounds, Antioxidant Capacity, and Anti-Inflammatory Effects of Lipophilic and Hydrophilic Extracts of the Pericarp of Passiflora tripartita var. mollissima at Two Stages of Ripening. Molecules. 29(20). 4964–4964. 1 indexed citations

Benítez, Ángel, Diego H. Peluffo-Ordóńez, & James Calva. (2024). Salix humboldtiana as an Indicator of Air Pollution by Trace Metals in the Urban Areas of the City of Loja, Southern Ecuador. Atmosphere. 15(10). 1160–1160. 1 indexed citations

Calva, James, et al.. (2024). Analysis of the Volatile and Enantiomeric Compounds Emitted by Plumeria rubra L. Flowers Using HS-SPME–GC. Plants. 13(17). 2367–2367.

Calva, James, et al.. (2024). Isolation of Geranyl Acetate and Chemical Analysis of the Essential Oil from Melaleuca armillaris (Sol. ex Gaertn.) Sm.. Applied Sciences. 14(5). 1864–1864. 2 indexed citations

Calva, James, et al.. (2024). Volatile Distribution in Flowers of Lathyrus odoratus L. by HS-SPME-GC Technique and Enantiomeric Separation Data. Plants. 13(23). 3272–3272.

Aguilar, Gabriela, et al.. (2023). Chemical Constituents, Enantiomer Content, Antioxidant and Anticholinesterase Activities of Valeriana microphylla Kunth Essential Oil. Plants. 12(11). 2155–2155. 3 indexed citations

10.

Herrera-Calderón, Oscar, et al.. (2023). The Essential Oil of Petroselinum crispum (Mill) Fuss Seeds from Peru: Phytotoxic Activity and In Silico Evaluation on the Target Enzyme of the Glyphosate Herbicide. Plants. 12(12). 2288–2288. 8 indexed citations

11.

Calva, James, et al.. (2023). Composition and Anti-Acetylcholinesterase Properties of the Essential Oil of the Ecuadorian Endemic Species Eugenia valvata McVaugh. Molecules. 28(24). 8112–8112. 4 indexed citations

12.

Calva, James, Carlos E. Ludeña, Nicole Bec, et al.. (2023). Constituents and Selective BuChE Inhibitory Activity of the Essential Oil from Hypericum aciculare Kunth. Plants. 12(14). 2621–2621. 6 indexed citations

13.

Calva, James, et al.. (2023). Biological Activities and Chemical Composition of Essential Oil from Hedyosmum purpurascens (Todzia)—An Endemic Plant in Ecuador. Molecules. 28(5). 2366–2366. 5 indexed citations

14.

Arroyo-Acevedo, Jorge Luis, et al.. (2022). Phytochemical Constituents and Ameliorative Effect of the Essential Oil from Annona muricata L. Leaves in a Murine Model of Breast Cancer. Molecules. 27(6). 1818–1818. 10 indexed citations

15.

Cartuche, Luis, et al.. (2022). Chemical and Biological Activity Profiling of Hedyosmum strigosum Todzia Essential Oil, an Aromatic Native Shrub from Southern Ecuador. Plants. 11(21). 2832–2832. 12 indexed citations

16.

Bec, Nicole, et al.. (2021). Chemical Composition and Anticholinesterase Activity of the Essential Oil of Leaves and Flowers from the Ecuadorian Plant Lepechinia paniculata (Kunth) Epling. Molecules. 26(11). 3198–3198. 8 indexed citations

17.

Valarezo, Eduardo, et al.. (2021). Chemical Constituents of the Essential Oil from Ecuadorian Endemic Species Croton ferrugineus and Its Antimicrobial, Antioxidant and α-Glucosidase Inhibitory Activity. Molecules. 26(15). 4608–4608. 18 indexed citations

18.

Armijos, Chabaco, Nicole Bec, Gabriela Aguilar, et al.. (2020). Chemical composition and selective BuChE inhibitory activity of the essential oils from aromatic plants used to prepare the traditional Ecuadorian beverage horchata lojana. Journal of Ethnopharmacology. 263. 113162–113162. 17 indexed citations

19.

Arroyo-Acevedo, Jorge Luis, et al.. (2020). Cordia lutea L. Flowers: A Promising Medicinal Plant as Chemopreventive in Induced Prostate Carcinogenesis in Rats. Evidence-based Complementary and Alternative Medicine. 2020(1). 5062942–5062942. 5 indexed citations

20.

Calva, James, et al.. (2019). Chemical Composition, Enantiomeric Distribution and AChE-BChE Activities of the Essential Oil of Myrteola phylicoides (Benth) Landrum from Ecuador. Records of Natural Products. 13(4). 355–362. 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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