University of Yaoundé I | Cameroon

Dr. Dieudonné NGA ONGODO is a Cameroonian nuclear physicist and Senior Lecturer at the University of Yaoundé I, Faculty of Science, Department of Physics. With over a decade of professional and academic engagement, Dr. Nga Ongodo stands out as a prominent scholar, researcher, and educator, whose work spans nuclear instrumentation, quantum mechanics, and radiation protection. His contributions are firmly rooted in both fundamental physics and applied technologies, making him a vital figure in the African and international scientific communities.

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🎓 Early Academic Pursuits

Dr. Nga Ongodo’s academic foundation was laid with a Baccalaureate in Mathematics and Physics from Lycée d’Obala (2004–2005). He then enrolled at the University of Yaoundé I, completing his Undergraduate studies in Physics (2005–2010), followed by a Master’s Degree in Physics (2011–2013), and later earning a PhD in Nuclear Physics in 2020. His academic trajectory reflects a strong grounding in core and advanced physics disciplines, preparing him for a research-intensive career.

🧑‍🏫 Professional Endeavors

Over more than a decade, Dr. Nga Ongodo has built a distinguished academic career. Since May 2023, he serves as a Senior Lecturer at the University of Yaoundé I, having previously worked as an Assistant Lecturer (2021–2023) and Part-time Teacher (2014–2021) in the same department. Beyond academia, he also lectures at Institut Universitaire la Vision and previously at Institut Universitaire Sup Prépa, further demonstrating his commitment to educational development. Additionally, he plays a pivotal role in public contract regulation as a recognized expert for both the Regulatory Agency of Public Contracts (ARMP) and the Ministry of Public Contracts.

🧪 Contributions and Research Focus

Dr. Nga Ongodo is a dynamic and innovative researcher whose work spans several cutting-edge domains in physics. His expertise includes nuclear instrumentation, FPGA systems, digital signal and pulse processing (DSP, DPP), and radiation dosimetry. He has also contributed to the use of artificial neural networks in analyzing mass spectra, and explores quantum mechanics and SU(3) symmetry through advanced mathematical models. By integrating fractional calculus, Bohr Hamiltonian formalism, and quark models, he provides deep insight into atomic nuclei and particle interactions. His research bridges theory and application, advancing nuclear physics both locally and globally.

🌍 Impact and Influence

Dr. Nga Ongodo’s scientific influence transcends national borders. He has participated in prominent international workshops and seminars, including the African School of Fundamental Physics (Rwanda, 2016) and IAEA-AFRA training sessions across Cameroon and Ethiopia. His groundbreaking publications are featured in top-tier journals such as the European Physical Journal, Modern Physics Letters, and the International Journal of Modern Physics, attesting to the global relevance and visibility of his work.

📈 Academic Citations

With 13 peer-reviewed articles published between 2019 and 2025, Dr. Nga Ongodo’s work has received increasing academic attention. He has co-authored papers on topics including heavy pentaquark masses, Bohr Hamiltonian models, and charmonium resonances using both classical physics and AI techniques. His collaborations with other leading African physicists highlight his role as a central figure in nuclear modeling and quantum structure analysis.

🛠️ Research Skills

Dr. Nga Ongodo’s research expertise is deeply rooted in a diverse and robust technical skill set that empowers both his investigative pursuits and pedagogical approach. He possesses advanced mastery in nuclear and numerical electronics, as well as specialized experience in detector electronics and FPGA (Field Programmable Gate Array) systems, which are vital for real-time data acquisition and signal processing in nuclear experiments. His strong foundation in mathematical modeling, particularly through sophisticated frameworks such as the Nikiforov–Uvarov and Heun methods, allows him to derive analytical solutions for complex quantum systems.

👨‍🏫 Teaching Experience

A passionate and student-centered educator, Dr. Nga Ongodo has taught an extensive range of subjects including Quantum Physics, Electromagnetism, Fluid Mechanics, Thermodynamics, and Radiation Protection. He is well-versed in both theoretical instruction and practical laboratory supervision. His active engagement in pedagogical development seminars, such as the 2022 Competency-Based Teaching Workshop, showcases his dedication to educational innovation and student success.

🏅 Awards and Honors

While formal awards are not explicitly listed, Dr. Nga Ongodo’s appointments and invited participation in elite research events, including those organized by C.E.T.I.C and the IAEA, serve as implicit recognition of his expertise and leadership. His invitation to speak at the 2025 Radiological Protection Workshop in Cameroon underscores his role as a national thought leader in nuclear safety and public health.

🚀 Legacy and Future Contributions

Looking ahead, Dr. Nga Ongodo is set to play an even more significant role in African scientific development, particularly in areas of radiation protection, data-driven nuclear modeling, and sustainable electronics for physics research. His recent work involving Artificial Neural Networks, topological quantum mechanics, and quantum gravity analogues points to a future of interdisciplinary research that bridges AI, quantum systems, and high-energy physics. His legacy will not only be defined by the depth of his research, but also by his transformational impact on Cameroon’s scientific infrastructure, his mentorship of emerging scholars, and his efforts to elevate African research onto the global stage.

Publications Top Notes

Effect of spin-spin interaction and fractional order on heavy pentaquark masses under topological defect space-times

Authors: D. Nga Ongodo, A. A. Atangana Likéné, J. M. Ema’a Ema’a, P. Ele Abiama, G. H. Ben-Bolie
Journal: The European Physical Journal C
Year: 2025

Hyperbolic tangent form of sextic potential in Bohr Hamiltonian: Analytical approach via extended Nikiforov–Uvarov and Heun equations

Authors: D. Nga Ongodo, A. Atangana Likéné, A. Zarma, J. M. Ema’a Ema’a, P. Ele Abiama, G. H. Ben-Bolie
Journal: International Journal of Modern Physics E
Year: 2025

Electric quadrupole transitions of triaxial nuclei via the Bohr Hamiltonian within the screened Kratzer–Hellmann potential

Authors: D. Nga Ongodo, A. A. Atangana Likéné, A. Zarma, S. Haman Adama, J. M. Ema’a Ema’a, G. H. Ben-Bolie
Journal: The European Physical Journal Plus
Year: 2025

Non-compact extra dimensions and flavor dependence of cc̄ and bb̄ mesons masses in a hot QCD medium with lattice, LO and NLO parametrizations of the Debye mass

Authors: A. A. Atangana Likéné, L. B. Ungem, D. C. Mbah, D. Nga Ongodo, R. Houzibe, F. B. Djeuyi Ndafeun
Journal: Modern Physics Letters A
Year: 2025

Quantum chromodynamics Lagrangian density and SU(3) gauge symmetry: A fractional approach

Authors: A. A. Atangana Likéné, D. Nga Ongodo, P. Mah Tsila, A. Atangana, G. H. Ben-Bolie
Journal: Modern Physics Letters A
Year: 2024

Jerzy Dryzek | The matter particles | Excellence in Research Award

Posted on 15/04/2025 by High Energy Physics

Prof. Dr. Jerzy Dryzek | The matter particles | Excellence in Research Award

Professor at Institute of Nuclear Physics PAS | Poland

Prof. Jerzy Dryzek is a renowned physicist specializing in solid state physics and positron annihilation spectroscopy, with over four decades of academic and research experience. A pioneer in experimental physics in Poland, he has played a central role in developing advanced laboratory techniques in the field, particularly at the Institute of Nuclear Physics PAN in Kraków. His extensive international collaborations and leadership in scientific projects underscore his lasting influence in materials science and nuclear physics.

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📚 Early Academic Pursuits

Dr. Dryzek embarked on his academic journey with a Master’s degree from the Academy of Mining and Metallurgy in Kraków (1975–1980), where he focused on the “Technology of thin films.” He simultaneously pursued another Master’s in Nuclear Physics from the Jagiellonian University in Kraków (1977–1981), conducting a thesis on the “Measurement of the positron lifetime in silver films.” His deep interest in positron-related phenomena led to his Ph.D. (1981–1986) in Solid State Physics, with a dissertation titled “Electrical conductivity and electrical properties of thin metallic films (Au, Ag, Cu).”

🧪 Professional Endeavors

Since 1987, Dr. Dryzek has held a permanent position at the Institute of Nuclear Physics in Kraków, where he has been instrumental in establishing and expanding the positron annihilation laboratory. His international exposure includes scientific visits to Münster University, Germany, Helsinki University of Technology, Finland, Texas Christian University, USA, and collaborative research at Chalmers University of Technology, Sweden, and KEK in Tsukuba, Japan. He also served as Professor at the University of Zielona Góra (2005–2009) and Opole University (2009–2014).

🔬 Contributions and Research Focus

Dr. Dryzek’s research focus lies in positron annihilation spectroscopy, with special emphasis on pulsed positron beams, two-dimensional Doppler broadening, and positron annihilation in flight. He has led multiple national and international research projects, exploring grain boundaries, resonance trapping, and nonhomogeneous systems. His innovative work includes the construction of Doppler broadening spectrometers and advancing methods of studying subsurface zones in metallic alloys.

🌍 Impact and Influence

Dr. Dryzek’s impact extends beyond laboratory research. Through his leadership in the Centre of Excellence ADREM, he contributes to applying physics to human health and environmental safety. His collaborative initiatives have fostered German-Polish scientific cooperation, and his lectures and research work have enriched institutions in Europe, the USA, and Japan. His influence is particularly notable in shaping positron annihilation research infrastructure in Poland.

📖 Academic Cites

Dr. Dryzek’s work has been widely cited in peer-reviewed journals and international conferences, especially in the context of tribology, surface studies, and positron annihilation in condensed matter. His habilitation thesis in 2001, titled “Positron annihilation characteristics in condensed matter,” laid the foundation for his recognition as an Assistant Professor and later Full Professor in 2012.

🛠️ Research Skills

Dr. Dryzek demonstrates expertise in experimental physics, with deep proficiency in positron annihilation techniques, Doppler spectroscopy, and positron beam construction. He is also skilled in research project management, having led numerous scientific grants, coordinated interdisciplinary networks such as POSMAT, and conducted technology-based studies on materials like polymers, metals, and minerals.

👨‍🏫 Teaching Experience

Alongside research, Dr. Dryzek has actively contributed to academic teaching, notably as a lecturer in physics at the Pedagogical University in Kraków (1990–1992) and as a visiting professor at international institutions. He played a significant role in educating students from Münster University, fostering cross-border scientific knowledge exchange under the German-Polish Collaboration framework.

🏆 Awards and Honors

Among his recognitions are several competitive research grants awarded by the Committee of Scientific Research in Poland, European Commission (COST Programs), and German-Polish Foundations. His leadership in teaching grants, instrument development, and joint international projects reflects the high regard of his contributions to science and education.

🔮 Legacy and Future Contributions

With a legacy rooted in scientific innovation, academic mentorship, and international collaboration, Dr. Dryzek has established himself as a pioneer in positron physics. His work continues to inspire future generations, and his efforts in network coordination, grant acquisition, and technical development ensure ongoing contributions to the fields of solid-state physics and material science. His vision for advancing positron annihilation studies remains a guiding light for both theoretical and applied physics communities.

Publications Top Notes

Superior barrier performance, mechanical properties and compostability in relation to supramolecular structure of renewable based poly(trimethylene furanoate) modified with suberic acid

Authors: A. Zubkiewicz, A. Szymczyk, J. Dryzek, V.M. Siracusa, N. Lotti
Journal: European Polymer Journal
Year: 2025

Positronium Formation on the Rhenium Surface Studied by Slow Positron Measurements

Authors: J. Dryzek, M.O. Liedke, M. Butterling, E. Dryzek
Journal: Physica Status Solidi (B) Basic Research
Year: 2025

Influence of flexible segment length on the phase structure and properties of poly(hexamethylene 2,5-furandicarboxylate)-block-biopolytetrahydrofuran copolymers

Authors: S. Paszkiewicz, K. Walkowiak, I. Irska, Z.J. Rozwadowski, J. Dryzek
Journal: Journal of Applied Polymer Science
Year: 2024

Positron Annihilation and EBSD Studies of Subsurface Zone Created During Friction in Vanadium

Authors: J. Dryzek, M.X. Wróbel
Journal: Journal of Tribology
Year: 2023

Influence of the positron implantation profile on the study of the defect depth distribution by the positron annihilation technique

Authors: J. Dryzek
Journal: Journal of Applied Physics
Year: 2023

Shewa Getachew | High energy physics | Editorial Board Member

Posted on 13/03/202513/03/2025 by High Energy Physics

Mr. Shewa Getachew | High energy physics | Editorial Board Member

Lecturer at Wolkite University | Ethiopia

Shewa Getachew Mamo is a dedicated Physics Lecturer and researcher with a specialized focus on optical properties of nanocomposites, material science, refractive index, and group velocity. Passionate about advancing scientific knowledge, he is committed to both academic excellence and innovative research in the realm of condensed matter physics. His expertise extends to investigating local field enhancements, optical properties of nanostructures, and exploring nanoparticle-based materials and geometries.

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Early Academic Pursuits 🎓

Shewa’s academic journey began at Wolkite University, where he earned his Bachelor’s degree in Physics (2016-2019) and later pursued a Master’s degree in Condensed Matter Physics (2022-2023). Throughout his education, he developed a strong foundation in experimental and theoretical physics, which propelled him into a career of teaching and research in the field.

Professional Endeavors 💼

Currently, Shewa serves as a Physics Teacher at Wolkite University (since December 2023). In this role, he is responsible for preparing and presenting undergraduate and sometimes postgraduate courses in various areas of physics, including mechanics, electromagnetism, thermodynamics, quantum mechanics, and material science. He plays a vital role in designing curricula, developing lesson plans, and selecting relevant textbooks to ensure effective learning outcomes. His academic influence extends to advising students on academic matters and guiding them through research projects.

Contributions and Research Focus 🔬

Shewa’s research focus is primarily on the optical properties of core-shell spherical nanocomposites and local field enhancements. His research aims to explore the interaction between optical fields and nanocomposites, as well as investigating the influence of depolarization on the local field enhancement factor in passive and active composites with pure metal spheroidal nanoinclusions. One of his notable research areas includes optical bistability in nanoparticle composites and the role of tunable dielectric cores in cylindrical core-shell nanocomposites.

Impact and Influence 🌍

Shewa’s research has led to significant contributions to the field of material science and nanotechnology, specifically in understanding the optical properties of nanostructured materials. His findings have been widely discussed in the scientific community, with numerous publications in prominent journals. He is committed to staying updated with the latest advancements in condensed matter physics and nanotechnology, consistently striving to push the boundaries of existing scientific knowledge.

Academic Cites 📚

Shewa’s work has been widely cited, with his contributions being recognized across several prestigious journals. His publications include studies such as:

Tsegaye, A., & Getachew, S. (2024). “Investigation Optical Properties of ZnTe@Ag Core-Shell Spherical Nanocomposites Within Varies Dielectric Host Matrices”. Advances in Materials, 13(4), 80-91.
Getachew, S. (2024). “Effect of Tunable Dielectric Core on Optical Bistability in Cylindrical Core-Shell Nanocomposites”. Advances in Condensed Matter Physics, 2024(1), 9911970.
Getachew, S. (2024). “Investigation of Refractive Index and Group Velocity Metal Coated Dielectric Spherical Nanocomposites”. Iranian Journal of Physics Research, 24(3), 75-87.

His academic citations are a testament to his research impact and scientific contributions.

Research Skills 🔍

Shewa possesses advanced knowledge in condensed matter physics, with strong analytical and problem-solving skills. He is proficient in a range of experimental and theoretical physics techniques. His technical expertise includes programs such as Matlab, Word, Excel, PowerPoint, OpenOffice, and Latex, and he is skilled in computer languages like Python, Fortran, and Gnuplot. He also has experience with Unix systems and software like xmgrace, showcasing his comprehensive research toolset.

Teaching Experience 📘

Shewa’s teaching experience is extensive, having taught various physics courses at the undergraduate and postgraduate levels. He designs engaging lesson plans and works closely with students to help them grasp key concepts in physics. By preparing and grading exams, assignments, and laboratory reports, he ensures students receive constructive feedback for their academic growth. His role as a mentor goes beyond the classroom, advising students on their academic and career paths and supervising their research projects.

Legacy and Future Contributions 🌱

Shewa is committed to leaving a lasting legacy in the fields of nanotechnology, material science, and condensed matter physics. His ongoing research will likely continue to make valuable contributions to the understanding of optical properties and nanocomposite materials. Looking ahead, Shewa is dedicated to mentoring the next generation of scientists and physicists, sharing his knowledge and advancing the boundaries of nanophysics and material science research. Through continuous publication and collaboration, his work is set to influence the scientific community for years to come.

Publications Top Notes

Effect of Tunable Dielectric Function of the Core on Optical Bistability in Small Spherical Metal-Dielectric Composite

Authors: Hawi Aboma, Shewa Getachew, Sisay Shewamare
Journal: Ethiopian Journal of Applied Sciences
Year: 2025

Investigation Optical Properties of ZnTe@Ag Core-Shell Spherical Nanocomposites Within Varies Dielectric Host Matrices

Authors: Tsegaye Atnaf, Shewa Getachew
Journal: Advances in Materials
Year: 2024

Investigating the Optical Bistability of Pure Spheroidal Nanoinclusions in Passive and Active Host Matrices

Authors: Shewa Getachew, Girma Berga
Journal: Canadian Journal of Physics
Year: 2024

Investigation of Refractive Index and Group Velocity Metal Coated Dielectric Spherical Nanocomposites Within Passive and Active Dielectric Cores

Authors: Shewa Getachew
Journal: Iranian Journal of Physics Research (IJPR)
Year: 2024

Effect of Tunable Dielectric Core on Optical Bistability in Cylindrical Core–Shell Nanocomposites

Authors: Shewa Getachew, Junjie Li
Journal: Advances in Condensed Matter Physics
Year: 2024

Valeriu Savu | High energy physics | Best Researcher Award

Posted on 04/03/2025 by High Energy Physics

Dr. Valeriu Savu | High energy physics | Best Researcher Award

INOE2000 | Romania

Valeriu Savu is a highly accomplished Technological Development Engineer with an extensive career spanning over 35 years. Currently working at the National Institute of Research and Development for Optoelectronics (INOE2000) in Măgurele, Romania, Savu has demonstrated significant expertise in research and development of electronic modules and optical equipment. His work primarily revolves around lasers, optical fibers, and nanotechnology, and his contributions have been instrumental in advancing applications within telecommunications and military systems.

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Early Academic Pursuits 🎓

Savu’s academic journey began at the Polytechnic Institute of Bucharest, where he obtained a Bachelor’s degree in Electronics and Telecommunications in 1986. Later, he pursued a Master’s degree in Nanostructures and Unconventional Engineering Processes at the Polytechnic University of Bucharest (2012-2014). This was followed by the completion of his PhD in Engineering Sciences in 2007-2014 with a thesis on radio pulse selection and processing. His doctoral work focused on cosmic ray detection, emphasizing advanced methodologies for high-precision data processing in complex environments like saline settings.

Professional Endeavors 💼

Savu’s professional career began in 1990 with the Research Design Institute of Electromechanics ICPEM, where he worked on military electronics systems. From 2000 to 2005, he served as an Engineer at Elettra Communications S.A., contributing to the telecommunications sector with an emphasis on testing and verification of military-grade equipment. Since 2005, Savu has been at INOE2000, leading the Department of Engineering Design and Technology, where he focuses on cutting-edge optical devices and laser systems. His experience spans across the creation of advanced lasers, fiber optics, and sensor technologies for both commercial and military applications.

Contributions and Research Focus 🔬

Valeriu Savu has made notable contributions to several fields, including laser technology, optical fibers, and military electronics. He is an expert in the design, testing, and characterization of laser systems, photovoltaics, and nanostructured materials. One of his major research focuses includes Cherenkov radiation detection and the application of nanotechnology for optical sensing. Savu has been involved in the development of innovative sensors, including UV sensors for organic materials and high-voltage power supplies used in medical laser systems.

Impact and Influence 🌍

Savu’s work has significantly advanced the field of optoelectronics and has been applied in medical, military, and telecommunications sectors. He has also patented several devices, including laser protection systems and cosmic radiation detectors for specialized environments like salt mines. His innovative solutions continue to influence scientific research and engineering practices globally.

Academic Cites 📚

Savu’s scholarly work has earned recognition within the academic community, with numerous scientific articles published in prominent journals. His research has appeared in the Romanian Journal of Physics, Romanian Journal of Biophysics, and other prestigious publications. He has contributed to international conferences and his research papers are frequently cited by peers. Notable academic publications include his studies on the Nd:YAG laser for microsurgical ophthalmology and breast tissue investigation using diffuse optical tomography.

Research Skills 🧑‍💻

Valeriu Savu is highly skilled in experimental research, device testing, and the design of optical systems. He has expertise in advanced signal processing, laser characterization, and system integration. Savu’s proficiency with software tools such as OrCAD, FabMaster, NI Multisim, and OriginLab has made him a highly versatile researcher, capable of modeling complex systems and optimizing experimental designs. His experience spans across lab-based investigations, field tests, and cross-disciplinary applications of advanced technologies.

Teaching Experience 🍏

While Savu’s career has been predominantly research-driven, his extensive academic background and technical expertise have made him a valuable contributor to teaching and training in the field of optoelectronics. He has actively mentored students at various stages of their careers, guiding them through engineering problems and sharing his knowledge of cutting-edge technologies. His role as a PhD advisor and involvement in academic projects has contributed to the development of future scientists and engineers in the optoelectronics field.

Awards and Honors 🏆

Throughout his career, Savu has received various certificates and awards recognizing his contributions to both military and civilian applications. His innovative work has been acknowledged by organizations and research institutions, and he has earned several certificates of innovation for his unique designs and systems. Savu’s patents are a testament to his creative and practical contributions to optical technology and laser applications.

Legacy and Future Contributions 🔮

Savu’s extensive body of work leaves a lasting legacy in the field of optoelectronics, particularly in laser applications, telecommunications, and military technology. His ongoing work in cosmic radiation detectors and laser safety will likely influence future technological advancements in various sectors. As he continues to develop new systems and devices, his future contributions are expected to further shape the landscape of optical technology and engineering research.

Patents and Innovations 💡

Valeriu Savu’s patents reflect his ingenuity and forward-thinking approach to technology. Some of his recent applications include systems for automated discharge protection in laser pumps and power supply disconnect systems. His patents focus on enhancing the safety and efficiency of electronic systems, laser devices, and telecommunications infrastructure, with an emphasis on providing innovative solutions for user protection and optimal performance in real-world applications.

Publications Top Notes

Power Dissipation Reduction System for Adjustable Power Supplies

Authors: V Savu, MI Rusu, D Savastru, D Manea
Journal: Energies
Year: 2025

Analysis of a high-power laser thermal phenomena induced onto a composite made UAV/drone in flight

Authors: D Savastru, V Savu, MI Rusu, M Tautan, A Stanciu
Journal: Journal of Optoelectronics and Advanced Materials
Year: 2024

Sampling the travel distance of a vehicle through an unconventional method for data acquisition

Authors: MI Rusu, V Savu, D Savastru, CH Gandescu, A Stan, DM Cotorobai
Journal: Journal of Optoelectronics and Advanced Materials
Year: 2023

Grating Optic Fiber Sensors Detection of Smart Polymer Composite Delamination

Authors: D Savastru, D Savastru, MI Rusu, M Tautan, V Savu, II Lancranjan
Journal: Optics, Photonics and Lasers
Year: 2023

Ellipsometric characterization of tungsten oxide thin films, before and after He plasma exposure

Authors: MI Rusu, Y Addab, C Martin, C Pardanaud, V Savu, II Lancranjan, …
Journal: Optoelectronics and Advanced Materials-Rapid Communications
Year: 2023