Walber Toma

660 total citations
27 papers, 504 citations indexed

About

Walber Toma is a scholar working on Pollution, Health, Toxicology and Mutagenesis and Pharmacology. According to data from OpenAlex, Walber Toma has authored 27 papers receiving a total of 504 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Pollution, 6 papers in Health, Toxicology and Mutagenesis and 5 papers in Pharmacology. Recurrent topics in Walber Toma's work include Pharmaceutical and Antibiotic Environmental Impacts (13 papers), Microplastics and Plastic Pollution (4 papers) and Chemistry and Chemical Engineering (4 papers). Walber Toma is often cited by papers focused on Pharmaceutical and Antibiotic Environmental Impacts (13 papers), Microplastics and Plastic Pollution (4 papers) and Chemistry and Chemical Engineering (4 papers). Walber Toma collaborates with scholars based in Brazil, Portugal and Puerto Rico. Walber Toma's co-authors include Alba Regina Monteiro Souza Brito, Luciana Lopes Guimarães, Alberto Teodorico Correia, Clélia Akiko Hiruma-Lima, J.S. Gracioso, Wagner Vilegas, José Roberto Trigo, Fernando Sanzi Cortez, Everardo M. Carneiro and Francisco de Assis Oliveira and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Ethnopharmacology and British Journal Of Nutrition.

In The Last Decade

Walber Toma

23 papers receiving 458 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Walber Toma Brazil 13 157 149 102 101 82 27 504
Pei-Ling Yen Taiwan 15 100 0.6× 142 1.0× 81 0.8× 107 1.1× 22 0.3× 30 579
Veena Garg India 15 242 1.5× 141 0.9× 132 1.3× 109 1.1× 59 0.7× 43 727
Ali Acar Türkiye 16 278 1.8× 67 0.4× 76 0.7× 144 1.4× 31 0.4× 50 547
S. Saravana Devi India 15 181 1.2× 51 0.3× 115 1.1× 208 2.1× 47 0.6× 25 675
Jintong Zhao China 17 216 1.4× 92 0.6× 64 0.6× 196 1.9× 53 0.6× 28 700
Nitika Singh India 8 109 0.7× 86 0.6× 77 0.8× 146 1.4× 94 1.1× 13 668
Anoka A. Njan Nigeria 13 160 1.0× 119 0.8× 56 0.5× 66 0.7× 85 1.0× 23 541
B Suresh India 13 367 2.3× 117 0.8× 93 0.9× 167 1.7× 97 1.2× 46 756
Fatemeh Masoomi Iran 9 99 0.6× 297 2.0× 68 0.7× 174 1.7× 35 0.4× 13 620
Jiaojiao Yin China 14 98 0.6× 82 0.6× 87 0.9× 121 1.2× 17 0.2× 54 617

Countries citing papers authored by Walber Toma

Since Specialization
Citations

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

Fields of papers citing papers by Walber Toma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Walber Toma

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

All Works

20 of 20 papers shown
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Toma, Walber, et al.. (2025). Occurrence of pharmaceuticals and cocaine in liver and muscle of different fish species from a Brazilian coastal zone. Regional Studies in Marine Science. 88. 104266–104266.
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Guimarães, Luciana Lopes, et al.. (2024). Predicting the Ecological Risks of Phytoestrogens in Coastal Waters Using In Silico and In Vitro Approaches. SHILAP Revista de lepidopterología. 4(4). 651–666. 1 indexed citations
6.
Guimarães, Luciana Lopes, et al.. (2022). Occurrence of pharmaceuticals and cocaine in the urban drainage channels located on the outskirts of the São Vicente Island (São Paulo, Brazil) and related ecological risk assessment. Environmental Science and Pollution Research. 29(38). 57931–57945. 19 indexed citations
7.
Guimarães, Luciana Lopes, et al.. (2022). Occurrence, ecological risk assessment and prioritization of pharmaceuticals and abuse drugs in estuarine waters along the São Paulo coast, Brazil. Environmental Science and Pollution Research. 29(59). 89712–89726. 28 indexed citations
8.
Guimarães, Luciana Lopes, et al.. (2021). Occurrence and ecological risk assessment of pharmaceuticals and cocaine in the urban drainage channels of Santos beaches (São Paulo, Brazil): a neglected, but sensitive issue. Environmental Science and Pollution Research. 28(46). 65595–65609. 30 indexed citations
9.
Vidal, Diogo Guedes, Maria Alzira Pimenta Dinis, Fernando Sanzi Cortez, et al.. (2021). Toxicity of Antiretrovirals on the Sea Urchin Echinometra lucunter and Its Predicted Environmental Concentration in Seawater from Santos Bay (Brazilian Coastal Zone). Resources. 10(11). 114–114. 18 indexed citations
10.
Guimarães, Luciana Lopes, et al.. (2020). Occurrence and risk assessment of pharmaceuticals and cocaine around the coastal submarine sewage outfall in Guarujá, São Paulo State, Brazil. Environmental Science and Pollution Research. 28(9). 11384–11400. 25 indexed citations
11.
Guimarães, Luciana Lopes, et al.. (2020). Occurrence and ecological risk assessment of pharmaceuticals and cocaine in a beach area of Guarujá, São Paulo State, Brazil, under the influence of urban surface runoff. Environmental Science and Pollution Research. 27(36). 45063–45075. 56 indexed citations
12.
Guimarães, Luciana Lopes, et al.. (2018). Multivariate Method Based on Raman Spectroscopy for Quantification of Dipyrone in Oral Solutions. Journal of Spectroscopy. 2018. 1–10. 6 indexed citations
13.
Toma, Walber, et al.. (2018). PREVALÊNCIA EM PRESCRIÇÕES AMBULATORIAIS PARA IDOSOS DE POTENCIAS INTERAÇÕES MEDICAMENTOSAS E MEDICAMENTOS POTENCIALMENTE INAPROPRIADOS. 2(1). 19–34.
14.
Guimarães, Luciana Lopes, et al.. (2015). Evaluation of anti-ulcerogenic activity in an Aqueous Extract obtained from Bauhinia forficata leaves. SHILAP Revista de lepidopterología. 3 indexed citations
15.
Barrella, Walter, et al.. (2014). Operational logistics for ecotoxicological assessment of the drugs most used by the population of Santos/SP.. 3(5). 21–27. 1 indexed citations
16.
Gracioso, J.S., et al.. (2008). The antiulcer effect of Croton cajucara Benth in normoproteic and malnourished rats. Phytomedicine. 15(10). 815–825. 10 indexed citations
17.
Toma, Walber, et al.. (2006). The gastroprotective effect of the essential oil of Croton cajucara is different in normal rats than in malnourished rats. British Journal Of Nutrition. 96(2). 310–315. 11 indexed citations
18.
Gracioso, J.S., Walber Toma, Rosângela Maria Neves Bezerra, et al.. (2005). Is gastric ulceration different in normal and malnourished rats?. British Journal Of Nutrition. 93(1). 47–52. 12 indexed citations
19.
Toma, Walber, et al.. (2004). Preventive activity of pyrrolizidine alkaloids from Senecio brasiliensis (Asteraceae) on gastric and duodenal induced ulcer on mice and rats. Journal of Ethnopharmacology. 95(2-3). 345–351. 45 indexed citations
20.
Toma, Walber, et al.. (2003). Evaluation of the analgesic and antiedematogenic activities of Quassia amara bark extract. Journal of Ethnopharmacology. 85(1). 19–23. 111 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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