This map shows the geographic impact of R. Sant'Anna'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 R. Sant'Anna with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Sant'Anna more than expected).
This network shows the impact of papers produced by R. Sant'Anna. 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 R. Sant'Anna. The network helps show where R. Sant'Anna may publish in the future.
Co-authorship network of co-authors of R. Sant'Anna
This figure shows the co-authorship network connecting the top 25 collaborators of R. Sant'Anna.
A scholar is included among the top collaborators of R. Sant'Anna 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 R. Sant'Anna. R. Sant'Anna is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Goya, Shujiro, et al.. (2005). Remineralização de Manchas Brancas Cárie-Ativas com uso de Flúor-Xilitol. Brazilian Oral Research. 19. 31.2 indexed citations
3.
Sant'Anna, R., et al.. (2003). Assimilacao do nitrogenio pelas plantas de panicum maximum, cv. Vencedor, submetidas a diferentes proporcoes NH4+/NO3-.. infoteca-e (Brazilian Agricultural Research Corporation).1 indexed citations
Bonato, Carlos Moacir, José Cambraia, R. Sant'Anna, & Víctor Hugo Álvarez Venegas. (2000). Effect of aluminium on uptake, partitioning and utilization of sulphur in sorghum.. 12(1). 17–24.1 indexed citations
6.
Cambraia, José, et al.. (1999). Aluminum effects on lipid peroxidation and on the activities of enzymes of oxidative metabolism in sorghum..192 indexed citations
7.
Oliva, Marco Antônio, et al.. (1990). Effects of simulated acid rain and of Cubatão (SP) soil on parameters related to photosynthesis and transpiration in soyabean plants.. 2(1). 7–14.6 indexed citations
8.
Filho, Sebastião de Campos Valadares, et al.. (1990). Efficiency of microbial synthesis in Holstein, Nelore and crossbred buffalo steers estimated by different methods.. 19(5). 424–430.2 indexed citations
9.
Filho, Sebastião de Campos Valadares, et al.. (1990). Rumen bacteria composition and absorption of microbial amino acids in the small intestine of Holstein, Nelore and crossbred buffalo steers.. 19(5). 431–440.4 indexed citations
10.
Rostagno, Horácio Santiago, et al.. (1990). Digestibility of crude protein and amino acids of protein supplements in pigs with or without an ileo-rectal anastomosis.. 19(6). 476–488.1 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.