Yousef Bisabr | Dark Sector Research | Best Researcher Award

Posted on by ScienceFather

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

Posted on by ScienceFather

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