Assoc Prof Dr. Sobia Sadiq | General Relativity and Astrophysics | Editorial Board Member

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Assoc Prof Dr. Sobia Sadiq | General Relativity and Astrophysics | Editorial Board Member

University of Education |  Pakistan

Dr. Sobia Sadiq has earned multiple academic distinctions, including top positions and prestigious merit scholarships, and has been awarded an HEC Indigenous Ph.D. Fellowship. She has contributed to academic administration by organizing national and international conferences on gravitation and cosmology. Her teaching career includes serving as a Visiting Assistant Professor and currently working as an Assistant Professor (TTS) in the Department of Mathematics, University of Education. She has completed advanced professional development programs and her research interests span cosmology, electromagnetic field theory, relativity, relativistic astrophysics, and mathematical techniques. She is proficient in MS Office, Mathematica, Maple, and LaTeX. Dr. Sadiq has delivered several invited talks at reputed national and international platforms and has actively participated in numerous workshops, seminars, and conferences related to mathematics, cosmology, and astrophysics.

Profile: Scopus | Google Scholar  

Featured Publications

Sadiq, S., & Abbas, E. (2025). Impact of curvature-matter coupling on charged spherical polytropes. International Journal of Geometric Methods in Modern Physics.

Javed, F., Waseem, A., Sadiq, S., & Mustafa, G. (2025). A comprehensive analysis of stable configurations of nonrotating BTZ-ModMax thin-shell wormholes. European Physical Journal C.

Ditta, A., Sadiq, S., Rasheed, A. S., Errehymy, A., Maurya, S. K., & Mustafa, G. (2025). Novel insights into wormhole solutions in extended teleparallel gravity inspired by non-commutative geometry. International Journal of Geometric Methods in Modern Physics.

Sadiq, S., Atif, A., Javed, F., & Saleem, R. (2024). Investigating novel wormhole models in extended teleparallel gravity through thin-shell composed with dark energies. Chinese Journal of Physics.

Saleem, R., Aslam, M. I., Sadiq, S., & Murtaza, M. T. (2024). Stability of charged anisotropic thin shell gravastars admitting conformal motion in f(R, T) gravity. Annals of Physics, 465, 169659.

Dr. Chiranjeeb Singha | Gravitational Physics | Best Researcher Award

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Dr. Chiranjeeb Singha | Gravitational Physics | Best Researcher Award

Inter-University Centre for Astronomy and Astrophysics | India

Dr. Chiranjeeb Singha is a researcher specializing in theoretical and observational studies of classical, semi-classical, and quantum aspects of gravity. He has held academic and research positions at reputed institutes such as the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Saha Institute of Nuclear Physics (SINP), and the Chennai Mathematical Institute (CMI). His teaching experience includes courses on Mathematical Methods of Physics and Basic Statistical Mechanics. He is proficient in programming and computational tools such as LaTeX, Mathematica, Matlab, Fortran, C, and Monte Python, and is fluent in Bengali, English, and Hindi. He actively contributed to the scientific community as a referee for journals like General Relativity and Gravitation and Nuclear Physics B, and serves on the editorial board of the American Journal of Modern Physics. He has delivered numerous invited talks and seminars at national and international institutes and conferences, focusing on topics such as black hole thermodynamics, Hawking radiation, and the strong cosmic censorship conjecture. His research output includes over 25 published papers and several works under review, reflecting his strong engagement in high-energy and gravitational physics.

Profile: Scopus | Orcid | Google Scholar 

Featured Publications

Fairoos, C., & Singha, C. (2025). From nonextremal to extremal: Entropy of Reissner–Nordström and Kerr black holes revisited. General Relativity and Gravitation, 57(10), 136.

Chakrabarti, S., & Singha, C. (2025). Traversable wormholes with a spontaneous symmetry breaking scalar field. Fortschritte der Physik, 73(7), e70013.

Mahapatra, P., Singha, C., Hazarika, A., & Das, P. K. (2025). Implications of fermionic dark matter interactions on anisotropic neutron stars. The Astrophysical Journal, 985(1), 74.

Ghosh, R., & Singha, C. (2025). Can rotating black holes have short hairs? Physical Review D, 111(4), 044008.

Bhatt, R. P., & Singha, C. (2024). Scalar tidal response of a rotating BTZ black hole. Journal of High Energy Physics, 2024(11), 1–19.

Prof. Kangujam Priyokumar Singh |  Modified Theories of gravity, Dark Energy, String Cosmology | Best Researcher Award

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Prof. Kangujam Priyokumar Singh |  Modified Theories of gravity, Dark Energy, String Cosmology | Best Researcher Award

Manipur University | India

Prof. Kangujam Priyokumar Singh, a distinguished scholar in Applied Mathematics with research expertise in Relativity, Cosmology, Dark Energy, String Cosmology, and Modified Theories of Gravitation, has made significant academic and research contributions. He has published over 101 research papers in reputed international journals, authored a book titled Mathematical Approaches on Matter Distributions in the Universe (LAP, Germany), guided 10 Ph.D. scholars and 1 M.Phil., and currently supervises 8 doctoral students. He has successfully completed funded projects under UGC and CSIR on cosmological models and string universes. With 27 years of teaching experience at UG and PG levels, he has served as Professor at Manipur University and Bodoland University, where he also held important administrative positions such as Head of Department, Dean, and OSD (Examination). He has been an invited speaker at many national and international conferences, acted as reviewer for 12 international journals, and examined several doctoral and M.Phil. theses. His contributions extend to curriculum development, syllabus design, and academic governance across multiple universities, alongside organizing national and international workshops, conferences, and webinars. Prof. Singh is a life member of several professional societies including IAGRG, Tensor Society of India, and Cryptology Research Society of India, and has served in numerous academic committees at both Bodoland and Manipur University. With extensive examination and evaluation experience spanning over two decades, he has also played an active role in institutional development, co-curricular initiatives, and educational reforms. His illustrious career reflects excellence in teaching, research, administration, and academic leadership in the field of mathematics and cosmology.

Profile:  Scopus |Orcid| Google Scholar

Featured Publications

Moirangthem Meenakumari Devi; Kangujam Priyokumar Singh (2025).Parametrization of the Hubble parameter in f(R, T) theory. International Journal of Modern Physics A

Moirangthem Meenakumari Devi; Kangujam Priyokumar Singh (2025).Exploring the limitless potential of the hyperbolic scale factor in a spherically symmetric spacetime. Modern Physics Letters A

Syed Sabanam; Kangujam Priyokumar Singh (2025). Modeling of FRW cosmology in f(R,T) gravity with viscous fluid. International Journal of Geometric Methods in Modern Physics

Syed Sabanam; Kangujam Priyokumar Singh (2024). Cosmological implications on two fluids model universe with parametrization of Hubble parameter in Lyra manifold. Physica Scripta

Asem Jotin Meitei; Kangujam Priyokumar Singh; Syed Sabanam; S. Kiranmala Chanu (2024). Reinterpretation of Friedmann-Robertson-Walker Universe with Variable Gravitational and Cosmological Term in Bouncing Cosmology. East European Journal of Physics

Yousef Bisabr | Dark Sector Research | Best Researcher Award

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Prof. Yousef Bisabr | Dark Sector Research | Best Researcher Award 

faculty at Shahid Rajaee Teacher Training University,Iran

Yousef Farzannahad, born on August 3, 1965, in Iran, is a distinguished full professor in the Department of Physics at Shahid Rajaee Teacher Training University (SRTTU). Formerly known as Yousef Bisabr until 2004, he has dedicated his career to advancing theoretical physics and physics education. With over two decades of academic experience, he has made significant contributions to research and teaching while also serving in various leadership roles, including Head of the Physics Department. Yousef is passionate about nurturing the next generation of physicists and has been recognized for his commitment to academic excellence.

Profile:

Education:

Yousef Farzannahad completed his B.Sc. in Physics at Shahid Beheshti University, Tehran, from 1987 to 1991. He continued his academic journey at the same institution, obtaining his M.Sc. in theoretical physics from 1993 to 1996, under the supervision of Prof. HamidReza Sepangi. He pursued his Ph.D. in theoretical physics from 1997 to 2001, working with Prof. Hadi Salehi. His doctoral thesis, titled “The Role of Conformal Symmetry in Classical and SemiClassical Gravity,” reflects his deep engagement with complex theoretical concepts, laying a strong foundation for his future research endeavors.

Professional Experience:

Yousef Farzannahad began his academic career in 2001 as an Assistant Professor at SRTTU, where he contributed to teaching and research in physics. He served as the Head of the Physics Department from 2004 to 2009, demonstrating leadership and organizational skills. In 2010, he was promoted to Associate Professor and later became a full Professor in 2017. His extensive experience spans over two decades, during which he has actively participated in various academic committees, including a term on the scientific council of SRTTU from 2014 to 2016. This breadth of experience has enabled him to shape curriculum and mentor students effectively.

Research Focus:

Yousef Farzannahad’s research interests encompass a broad range of topics in theoretical physics. His primary focus includes cosmology, particularly dark energy and dark matter, as well as the cosmological constant problem and potential variations of fundamental constants. He also explores quantum field theory in curved space, delving into the intersections of gravity and quantum mechanics. Furthermore, Yousef is committed to advancing physics education, emphasizing the importance of effective teaching methods and student engagement. His interdisciplinary approach not only contributes to theoretical advancements but also aims to enhance the educational landscape in the field of physics.

Awards and Honors:

Yousef Farzannahad has received several prestigious awards throughout his academic career, reflecting his dedication and impact in the field of physics. In 1991, he was honored as the best undergraduate student in Physics at Beheshti University. He has received the Best Researcher award from SRTTU in both 2010 and 2012, recognizing his significant contributions to research and academic excellence. Additionally, he was awarded the Excellent Teaching Award in 2014 for his commitment to quality education. These accolades underscore his achievements and influence as an educator and researcher in physics.

Publication Top Notes:

  • Title: Modified gravity with a nonminimal gravitational coupling to matter
    Authors: Y. Bisabr
    Year: 2012
    Citations: 51
  • Title: Chameleon Brans-Dicke cosmology
    Authors: Y. Bisabr
    Year: 2012
    Citations: 43
  • Title: Coincidence problem in gravity models
    Authors: Y. Bisabr
    Year: 2010
    Citations: 26
  • Title: Mechanism for a decaying cosmological constant
    Authors: Y. Bisabr, H. Salehi
    Year: 2002
    Citations: 26
  • Title: Holographic dark energy model and scalar-tensor theories
    Authors: Y. Bisabr
    Year: 2009
    Citations: 24
  • Title: Cosmic acceleration in Brans–Dicke cosmology
    Authors: Y. Bisabr
    Year: 2012
    Citations: 21
  • Title: Non-minimal gravitational coupling of phantom and big rip singularity
    Authors: Y. Bisabr
    Year: 2013
    Citations: 18
  • Title: Solar System constraints on a cosmologically viable f (R) theory
    Authors: Y. Bisabr
    Year: 2010
    Citations: 17
  • Title: Conformal Anomaly and Large-Scale Gravitational Coupling
    Authors: H. Salehi, Y. Bisabr
    Year: 2000
    Citations: 17
  • Title: Gravitational coupling and dynamical reduction of the cosmological constant
    Authors: Y. Bisabr
    Year: 2010
    Citations: 16

 

Olga Avsajanishvili | Dark Sector Research | Best Researcher Award

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Dr. Olga Avsajanishvili | Dark Sector Research | Best Researcher Award 

Researcher at Evgeni Kharadze Georgian National Astrophysical Observatory, Georgia

Olga Avsajanishvili is a distinguished astrophysicist and researcher, currently working at the Evgeni Kharadze Georgian National Astrophysical Observatory. She earned her Ph.D. in Physics from Ilia State University, Georgia, focusing on theoretical and observational cosmology. Her research covers cosmological models of dark energy, modified gravity, and large-scale structure formation, contributing valuable insights to the field.

Profile:

Education:

Olga Avsajanishvili completed her M.S. in Astronomy with honors from Odesa Mechnikov National University, Ukraine, in 1990. Her M.S. project, titled “Ephemeris and dynamics of Orionids and ɳ-Aquarids meteor showers,” was supervised by Prof. Yefim Kramer and Prof. Gurana Mikirtumova. Later, she pursued a Ph.D. in Physics at Ilia State University, Georgia, between 2012 and 2019, under the supervision of Prof. Tina Kahniashvili and Prof. Lado Samushia. Her thesis, “Cosmological Models of Dark Energy: Theory and Observations,” earned her a Ph.D. with honors. Throughout her academic journey, she developed a strong foundation in cosmology, theoretical physics, and astronomical research, specializing in cosmological dark energy models and modified gravity theories. Her education, grounded in both theoretical and practical aspects of physics and astronomy, has significantly contributed to her research endeavors.

Professional experience:

Olga Avsajanishvili’s research career began in November 1990 at the Evgeni Kharadze Georgian National Astrophysical Observatory, where she worked as an Assistant Researcher until 2012. She then pursued her Ph.D. at Ilia State University, Georgia, from 2012 to 2019, focusing on dark energy and cosmological models. In 2019, Olga returned to the Evgeni Kharadze Observatory as a Researcher, where she continues her work on theoretical cosmology and astrophysical phenomena. Her experience includes collaborations with renowned institutions, such as Kansas State University and Carnegie Mellon University, where she worked alongside experts in astrophysics and cosmology. Olga has participated in various international research projects and secured numerous grants that support her cutting-edge research in cosmology, particularly in dark energy models and the large-scale structure of the universe.

Research focus:

Olga Avsajanishvili’s research focuses on the theoretical and observational aspects of cosmology, particularly cosmological models beyond the standard scenario. Her work is centered on dark energy-dark matter interaction models, quintessential inflation, and modified gravity theories such as f(R) models. She investigates the origin of neutrino mass, large-scale structure formation, and the implications of Bayesian statistics and Monte Carlo Markov Chain analysis on cosmological data. Olga is also involved in research on the observational constraints of cosmological scalar field models (ϕCDM) and their role in the evolution of the universe.

Award and Honors:

Olga Avsajanishvili has been recognized for her contributions to astrophysics and cosmology with several prestigious awards and honors. Notably, she was the recipient of the CRDF Global Georgia Women’s Research Fellowship from 2014 to 2015, highlighting her role as a leading female scientist in the field. During her Ph.D. studies at Ilia State University, she was awarded the Ph.D. Program Fellowship, which supported her groundbreaking research on dark energy models. Throughout her career, she has also secured several grants, including those from the Georgian Shota Rustaveli National Science Foundation and the Georgian Research & Development Foundation.

Publication Top Notes:

  • Title: Growth rate in the dynamical dark energy models
    Authors: O Avsajanishvili, NA Arkhipova, L Samushia, T Kahniashvili
    Year: 2014
    Citations: 26
  • Title: Vertical distribution of dust particles in the Earth’s atmosphere during the 1998 Leonids
    Authors: N Mateshvili, G Mateshvili, I Mateshvili, L Gheondjian, O Avsajanishvili
    Year: 1999
    Citations: 20
  • Title: The observational constraints on the flat CDM models
    Authors: O Avsajanishvili, Y Huang, L Samushia, T Kahniashvili
    Year: 2018
    Citations: 11
  • Title: Mass varying neutrinos with different quintessence potentials
    Authors: S Mandal, GY Chitov, O Avsajanishvili, B Singha, T Kahniashvili
    Year: 2021
    Citations: 9
  • Title: Observational constraints on dynamical dark energy models
    Authors: O Avsajanishvili, GY Chitov, T Kahniashvili, S Mandal, L Samushia
    Year: 2024
    Citations: 7
  • Title: Cosmological models of dark energy: theory and observations
    Authors: O Avsajanishvili
    Year: 2019
    Citations: 7
  • Title: Testing dark energy models through large scale structure
    Authors: O Avsajanishvili, L Samushia, NA Arkhipova, T Kahniashvili
    Year: 2015
    Citations: 7
  • Title: Reconstruction, Analysis and Constraints of Cosmological Scalar Field ϕCDM Models
    Authors: O Avsajanishvili, L Samushia
    Year: 2023
    Citations: 1
  • Title: Observational Constraints on Dynamical Dark Energy Models
    Authors: O Avsajanishvili, GY Chitov, T Kahniashvili, S Mandal, L Samushia
    Year: 2024
    Citations: 7
  • Title: Cosmological Scalar Field PhiCDM Models
    Authors: O Avsajanishvili
    Year: 2023
    Citations: Not specified