| Dr | Mohammad | Roohi | Shahid Chamran University | Iran |
| Mr | Pedro Abel | Romero Leiro | Bauhaus-Universität Weimar | Germany |
| Mrs | Dasthavejula | Roja | chalapathi institute of technology | India |
| Mrs | Dasthavejula | Roja | Chalapathi Institute of Technology | India |
| Prof. Dr | Harif Amali | Rivai | Universitas Andalas | Indonesia |
| Prof. Dr | Vladica | Ristić | Beopolis University, Belgrade , Serbia | Serbia |
| Mr | Dominic | Richmond | University of Birmingham | United Kingdom |
| Prof | Dan | Richards | Tufts University | United States |
| Prof. Dr | Kyung-Hyune | Rhee | Pukyong National University | South Sudan |
| Dr | Jakob | Reinhardt | Technical University of Munich | Germany |
| Mr | Aditya | Ranjan | IIT KHARAGPUR | India |
| Dr | Karthikeyan | Ramanujam | ICMR - National Institute of Nutrition | India |
| Mr | CHANDRA SHEKHAR | RAJORA | JAIPUR NATIONAL UNIVERSITY | India |
| Mr | Abdullah | Rajab | SMC | Saudi Arabia |
| Dr | Amr | Radwan | Regeneron | United Kingdom |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Prof. Dr | RIANE | Rabah | University of Ibn Khaldoun --Tiaret (Algeria) | Algeria |
| Assist. Prof. Dr | Mirjana | R. Cvijovic | Faculty of Applied Ecology Futura, Belgrade, Metropolitan University Belgrade | Serbia |
| Assist. Prof. Dr | Dr Muhammad Adnan | Qureshi | Health Services Academy Islamabad Pakistan | Australia |
| Dr | Eric Atta | Quainoo | Wesley College of Education | Ghana |