Marek Oja

410 total citations
20 papers, 231 citations indexed

About

Marek Oja is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Ceramics and Composites. According to data from OpenAlex, Marek Oja has authored 20 papers receiving a total of 231 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Materials Chemistry, 6 papers in Electrical and Electronic Engineering and 5 papers in Ceramics and Composites. Recurrent topics in Marek Oja's work include Luminescence Properties of Advanced Materials (7 papers), Glass properties and applications (5 papers) and Global Cancer Incidence and Screening (2 papers). Marek Oja is often cited by papers focused on Luminescence Properties of Advanced Materials (7 papers), Glass properties and applications (5 papers) and Global Cancer Incidence and Screening (2 papers). Marek Oja collaborates with scholars based in Estonia, Russia and Germany. Marek Oja's co-authors include M. Kirm, V.N. Makhov, N. Döbelin, Urmas Joost, M. Hirsimäki, Krišjānis Šmits, Martin Järvekülg, Mika Valden, E. Nõmmiste and Andris Šutka and has published in prestigious journals such as Chemistry of Materials, Scientific Reports and Preventive Medicine.

In The Last Decade

Marek Oja

14 papers receiving 227 citations

Peers

Marek Oja

EEE

RESE

Wenke Li China

Shukai Zheng China

Irfan Ayoub India

E. Barrera-Calva Mexico

K. S. Sibi India

Liwei Wu China

Chaitali M. Mehare India

Mohammed A. Algradee Yemen

Megha Jain India

Hsiang‐Ting Lien Taiwan

Wenke Li China

Marek Oja

169 ×1.0

116 ×1.4

EEE

37 ×0.6

RESE

26 ×0.7

11 ×0.4

Citations per year, relative to Marek Oja Marek Oja (= 1×) peers Wenke Li

Countries citing papers authored by Marek Oja

Since Specialization

Citations

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

Fields of papers citing papers by Marek Oja

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Marek Oja

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

Mooses, Kerli, et al.. (2026). A Comprehensive Approach to Days’ Supply Estimation in a Real-World Prescription Database: Algorithm Development and Validation Study. Online Journal of Public Health Informatics. 18. e83465–e83465.

Xie, Junqing, Antonella Delmestri, Talita Duarte‐Salles, et al.. (2025). Trends in prescription opioid use in Europe: A DARWIN EU® multinational cohort study including seven European countries. Frontiers in Pharmacology. 16. 1608051–1608051.

Poom‐Valickis, Katrin, et al.. (2025). Fostering complex historical understandings: a study of Estonian pupils’ epistemic cognition and learning experiences. Journal of Curriculum Studies. 1–22.

Mooses, Kerli, et al.. (2024). Using electronic health records to evaluate the adherence to cervical cancer prevention guidelines: A cross-sectional study. Preventive Medicine. 183. 107982–107982.

Oja, Marek, Kerli Mooses, Sulev Reisberg, et al.. (2024). Markov modeling for cost-effectiveness using federated health data network. Journal of the American Medical Informatics Association. 31(5). 1093–1101. 1 indexed citations

Oja, Marek, Kerli Mooses, Raivo Kolde, et al.. (2024). Repeatable process for extracting health data from HL7 CDA documents. Journal of Biomedical Informatics. 161. 104765–104765. 1 indexed citations

Jödicke, Annika M., Edward Burn, Maria de Ridder, et al.. (2024). Calculating daily dose in the Observational Medical Outcomes Partnership Common Data Model. Pharmacoepidemiology and Drug Safety. 33(6). e5809–e5809.

Uusküla, Anneli, Marek Oja, Made Laanpere, et al.. (2023). Prevaccination Prevalence of Type-Specific Human Papillomavirus Infection by Grade of Cervical Cytology in Estonia. JAMA Network Open. 6(2). e2254075–e2254075. 3 indexed citations

Oja, Marek, Kerli Mooses, Jaak Vilo, et al.. (2023). Transforming Estonian health data to the Observational Medical Outcomes Partnership (OMOP) Common Data Model: lessons learned. JAMIA Open. 6(4). ooad100–ooad100. 15 indexed citations

10.

Mooses, Kerli, Marek Oja, Ruth Kalda, et al.. (2023). The use of prescription drugs and health care services during the 6-month post-COVID-19 period. Scientific Reports. 13(1). 11638–11638.

11.

Vanetsev, A. S., Marek Oja, Н.М. Хайдуков, et al.. (2021). Microwave-hydrothermal synthesis and investigation of Mn-doped K2SiF6 microsize powder as a red phosphor for warm white LEDs. Journal of Luminescence. 239. 118389–118389. 9 indexed citations

12.

Бреховских, М. Н., et al.. (2019). Luminescence of Fluorochlorozirconate Glasses Doped with Manganese Ions. physica status solidi (b). 257(8). 7 indexed citations

13.

Kirm, M., Marek Oja, Hugo Mändar, et al.. (2019). Spectral Properties and Thermal Quenching of Mn4+ Luminescence in Silicate Garnet Hosts CaY2MgMAlSi2O12 (M = Al, Ga, Sc). Physics of the Solid State. 61(5). 853–859. 1 indexed citations

14.

Oja, Marek, E. Feldbach, & M. Kirm. (2019). Relaxation of intrinsic and extrinsic electronic excitations in nano- and micro-size alumina. Optical Materials. 91. 120–125. 3 indexed citations

15.

Joost, Urmas, Andris Šutka, Marek Oja, et al.. (2018). Reversible Photodoping of TiO₂ Nanoparticles for Photochromic Applications. Chemistry of Materials. 30(24). 8968–8974. 90 indexed citations

16.

Jansen, Thomas, M. Kirm, M.G. Brik, et al.. (2017). Narrow Band Deep Red Photoluminescence of Y₂Mg₃Ge₃O₁₂:Mn⁴⁺,Li⁺Inverse Garnet for High Power Phosphor Converted LEDs. ECS Journal of Solid State Science and Technology. 7(1). R3086–R3092. 61 indexed citations

17.

Oja, Marek, et al.. (2015). Luminescence study of alumina nanopowders prepared by various methods. Radiation Measurements. 90. 75–79. 12 indexed citations

18.

Oja, Marek, E. Feldbach, Aleksei Kotlov, et al.. (2013). Intrinsic and extrinsic luminescence of nanosize transition alumina powders. Radiation Measurements. 56. 411–414. 4 indexed citations

19.

Feldbach, E., et al.. (2013). Tuning the electronic properties of naturally nanostructured compounds. Physica Scripta. T157. 14013–14013. 2 indexed citations

20.

Kirm, M., E. Feldbach, Aleksei Kotlov, et al.. (2009). VUV spectroscopy and electronic excitations in nano-size alumina. Radiation Measurements. 45(3-6). 618–620. 22 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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