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Hire Dr. Shahab S.

Brazil

USD 25 /hr

Data Analyst | R & Python Expert for Medical & Biological Research

Profile Summary

I’m a data analyst and programmer with expertise in Python and R, focused on supporting doctors, biologists, and researchers in making sense of complex datasets. I help translate raw data into clear, statistically sound insights — whether for academic publications, research projects, or clinical studies. I specialize in data cleaning, statistical analysis, and visualization, using libraries and tools like pandas, NumPy, matplotlib, seaborn, ggplot2, and dplyr. I’m comfortable working with experimental data, clinical observations, and biological datasets, and I prioritize clarity, reproducibility, and precision in every project. With a strong background in research, I understand the standards of scientific work and the importance of presenting data clearly and accurately. If you're looking for someone to help analyze, interpret, and visualize your research data using Python or R, I'm here to help.

Subject Matter Expertise

• ☆ Computational Biology
• ☆ Mathematical Biology
• ☆ Data Analysis
• ☆ Data Visualization
• ☆ Data Cleaning
• ☆ Medical Statistics
• ☆ Python

Services

• Research

Research User Research, Scientific and Technical Research

Work Experience

Professor

Damghan University

September 2013 - Present

Data Analyst | Python & R Specialist

Freelancer / Consultant

January 2011 - Present

Education

PhD - Physics & Astronomy

Shahid Beheshti University

January 2007 - January 2011

MSc - Physics

Shahid Beheshti University

January 2005 - January 2007

B.S. (Mathematics)

Amirkabir College of Management & Technology - Iran

January 2003 - January 2007

B.S. (Physics)

Amirkabir College of Management & Technology - Iran

January 2001 - January 2005

Certifications

• Data Science and Analytics Certification

  coursera

  January 2017 - Present

Publications

JOURNAL ARTICLE

Shahab Shahidi, Harko, Tiberiu(2024). Cosmological implications of the Weyl geometric gravity theory . Eur.Phys.J.C. 84. (5). p. 509.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu(2024). The first variation of the matter energy–momentum tensor with respect to the metric, and its implications on modified gravity theories . Phys.Dark Univ. 44. p. 101448.

Shahidi, Shahab, Burikham, Piyabut, Harko, Tiberiu, Pimsamarn, Kulapant(2023). Dark matter as a Weyl geometric effect . Phys.Rev.D. 107. (6). p. 064008.

Shahab Shahidi, Khosravi, Nima(2022). Anisotropy in constraint 4D Gauss–Bonnet gravity . Eur.Phys.J.C. 82. (3). p. 269.

Shahab Shahidi(2021). Non-minimal energy–momentum squared gravity . Eur.Phys.J.C. 81. (4). p. 274.

Shahab Shahidi(2019). Cosmology of a higher derivative scalar theory with non-minimal Maxwell coupling . Eur.Phys.J.C. 79. (6). p. 448.

Shahidi, Shahab, Kovács, Zoltán, Harko, Tiberiu(2018). Reply to “Comment on ‘Can accretion disk properties observationally distinguish black holes from naked singularities?’” . Phys.Rev.D. 98. p. 088502.

Shahidi, Shahab, Charmchi, Farid, Haghani, Zahra, Shahkarami, Leila(2018). Modified gravity one-loop partition function . Eur.Phys.J.C. 78. (10). p. 833.

Shahidi, Shahab(2018). Axionic extension of the Proca action . Phys.Rev.D. 98. (8). p. 084004.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu(2018). The Einstein dark energy model . Phys.Dark Univ. 21. p. 27--39.

Shahidi, Shahab, Haghani, Zahra, Shiravand, Maryam(2018). Energy conditions in mimetic-$f(R)$ gravity . Int.J.Mod.Phys.D. 27. (05). p. 1850049.

Shahab Shahidi, Amado, André, Haghani, Zahra, Mohammadi, Azadeh(2017). Quantum corrections to the generalized Proca theory via a matter field . Phys.Lett.B. 772. p. 141--151.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu(2017). The Maxwell–Chern–Simons gravity, and its cosmological implications . Eur.Phys.J.C. 77. (8). p. 514.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2017). Vector dark energy models with quadratic terms in the Maxwell tensor derivatives . Eur.Phys.J.C. 77. (3). p. 137.

Shahab Shahidi, Charmchi, Farid, Haghani, Zahra, Shahkarami, Leila(2016). One-loop corrections to vector Galileon theory . Phys.Rev.D. 93. (12). p. 124044.

Shahidi, Shahab, Haghani, Zahra, Khosravi, Nima(2015). The Weyl–Cartan Gauss–Bonnet gravity . Class.Quant.Grav. 32. (21). p. 215016.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2015). Cosmology of a Lorentz violating Galileon theory . JCAP. 05. p. 022.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2014). Matter may matter . Int.J.Mod.Phys.D. 23. (12). p. 1442016.

Haghani, Z., Harko, T., Sepangi, H.R., Shahidi, S.(2014). Matter may matter . International Journal of Modern Physics D. 23. (12).

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2014). The scalar Einstein-aether theory .

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2013). Weyl-Cartan-Weitzenböck gravity through Lagrange multiplier . Phys.Rev.D. 88. (4). p. 044024.

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Lobo, Francisco S. N., Sepangi, Hamid Reza(2013). Further matters in space-time geometry: f(R,T,RμνTμν) gravity . Phys.Rev.D. 88. (4). p. 044023.

Shahidi, Shahab, Haghani, Zahra, Sepangi, Hamid Reza(2013). Curvature perturbations of quasidilaton nonlinear massive gravity . Phys.Rev.D. 87. (12). p. 124014.

Haghani, Z., Sepangi, H.R., Shahidi, S.(2013). Curvature perturbations of quasidilaton nonlinear massive gravity . Physical Review D - Particles, Fields, Gravitation and Cosmology. 87. (12).

Haghani, Z., Harko, T., Lobo, F.S.N., Sepangi, H.R., Shahidi, S.(2013). Further matters in space-time geometry: F(R,T,RμνTμν ) gravity . Physical Review D - Particles, Fields, Gravitation and Cosmology. 88. (4).

Haghani, Z., Harko, T., Sepangi, H.R., Shahidi, S.(2013). Weyl-Cartan-Weitzenböck gravity through Lagrange multiplier . Physical Review D - Particles, Fields, Gravitation and Cosmology. 88. (4).

Ranjbar, A., Sepangi, H.R., Shahidi, S.(2012). Asymptotically Lifshitz brane-world black holes . Annals of Physics. 327. (12). p. 3170-3181.

Shahidi, Shahab, Ranjbar, Arash, Sepangi, Hamid Reza(2012). Asymptotically Lifshitz Brane-World Black Holes . Annals Phys. 327. p. 3170.

Haghani, Z., Harko, T., Reza Sepangi, H., Shahidi, S.(2012). Weyl-Cartan-Weitzenböck gravity as a generalization of teleparallel gravity . Journal of Cosmology and Astroparticle Physics. 2012. (10).

Shahidi, Shahab, Haghani, Zahra, Harko, Tiberiu, Sepangi, Hamid Reza(2012). Weyl-Cartan-Weitzenboeck gravity as a generalization of teleparallel gravity . JCAP. 10. p. 061.

Khosravi, N., Rahmanpour, N., Sepangi, H.R., Shahidi, S.(2012). Multimetric gravity via massive gravity . Physical Review D - Particles, Fields, Gravitation and Cosmology. 85. (2).

Shahidi, Shahab, Khosravi, Nima, Rahmanpour, Nafiseh, Sepangi, Hamid Reza(2012). Multi-Metric Gravity via Massive Gravity . Phys.Rev.D. 85. p. 024049.

Shahidi, Shahab, Haghani, Zahra, Sepangi, Hamid Reza(2012). Cosmological dynamics of brane f(R) gravity . JCAP. 02. p. 031.

Khosravi, N., Sepangi, H.R., Shahidi, S.(2012). Massive cosmological scalar perturbations . Physical Review D - Particles, Fields, Gravitation and Cosmology. 86. (4).

Haghani, Z., Sepangi, H.R., Shahidi, S.(2012). Cosmological dynamics of brane f(R) gravity . Journal of Cosmology and Astroparticle Physics. 2012. (2).

Shahidi, Shahab, Khosravi, Nima, Sepangi, Hamid Reza(2012). Massive cosmological scalar perturbations . Phys.Rev.D. 86. p. 043517.

Haghani, Z., Sepangi, H.R., Shahidi, S.(2011). Anisotropy in Born-Infeld brane cosmology . Physical Review D - Particles, Fields, Gravitation and Cosmology. 83. (6).

Haghani, z., Sepangi, H.R., shahidi, S.(2011). Anisotropy in Born-Infeld brane cosmology . Phys.Rev.D. 83. p. 064014.

Shahidi, Shahab, Sepangi, Hamid Reza(2011). Brane worlds and dark matter . Int.J.Mod.Phys.D. 20. p. 77--91.

Shahidi, S., Sepangi, H.R.(2011). Braneworlds and dark matter . International Journal of Modern Physics D. 20. (1). p. 77-91.

Sepangi, H.R., Shahidi, S.(2009). Virial mass in DGP brane cosmology . Classical and Quantum Gravity. 26. (18).

Sepangi, H.R., Shahidi, S.(2009). Virial mass in DGP brane cosmology . Class.Quant.Grav. 26. p. 185010.

Shahidi, Shahab, Borzou, Ahmad, Sepangi, Hamid Reza, Yousefi, Razieh(2009). Brane f(R) gravity . EPL. 88. (2). p. 29001.

Borzou, A., Sepangi, H.R., Shahidi, S., Yousefi, R.(2009). Brane f(R) gravity . Europhysics Letters. 88. (2).

Zahra Haghani, Tiberiu Harko, Hamid Reza Sepangi, Shahab Shahidi, 2012, 'Weyl-Cartan-Weitzenböck gravity as a generalization of teleparallel gravity', <i>Journal of Cosmology and Astroparticle Physics</i>, vol. 2012, no. 10, pp. 061-061 .

Arash Ranjbar, Hamid Reza Sepangi, Shahab Shahidi, 2012, 'Asymptotically Lifshitz brane-world black holes', <i>Annals of Physics</i>, vol. 327, no. 12, pp. 3170-3181 .

Zahra Haghani, Hamid Reza Sepangi, Shahab Shahidi, 2012, 'Cosmological dynamics of branef(ℛ) gravity', <i>Journal of Cosmology and Astroparticle Physics</i>, vol. 2012, no. 02, pp. 031-031 .

Nima Khosravi, Hamid Reza Sepangi, Shahab Shahidi, 2012, 'Massive cosmological scalar perturbations', <i>Physical Review D</i>, vol. 86, no. 4 .

Nima Khosravi, Nafiseh Rahmanpour, Hamid Reza Sepangi, Shahab Shahidi, 2012, 'Multimetric gravity via massive gravity', <i>Physical Review D</i>, vol. 85, no. 2 .

Zahra Haghani, Hamid Reza Sepangi, Shahab Shahidi, 2011, 'Anisotropy in Born-Infeld brane cosmology', <i>Physical Review D</i>, vol. 83, no. 6 .

SHAHAB SHAHIDI, HAMID REZA SEPANGI, 2011, 'BRANEWORLDS AND DARK MATTER', <i>International Journal of Modern Physics D</i>, vol. 20, no. 01, pp. 77-91 .

PREPRINT

(2021). Geodesic deviation, Raychaudhuri equation, Newtonian limit, and tidal forces in Weyl-type $f(Q,T)$ gravity .

(2020). Black hole solutions in modified gravity induced by quantum metric fluctuations.

(2020). Weyl type $f(Q,T)$ gravity, and its cosmological implications . The European Physical Journal C, Volume 80, Issue 5, article id.449, 2020.

(2020). Distinguishing Brans-Dicke-Kerr type naked singularities and black holes with their thin disk electromagnetic radiation properties . The European Physical Journal C 80, 162 (2020).

(2019). Cosmology in theories with derivative matter coupling.

(2018). Cosmic acceleration via derivative matter couplings.

(2018). Cosmology of a higher derivative scalar theory with non-minimal Maxwell coupling . EPJC 79 (2019) 448.

(2018). Reply to "Comment on 'Can accretion disk properties observationally distinguish black holes from naked singularities?'" . Phys. Rev. D 98, 088502 (2018).

(2018). Axionic extension of the Proca action . Phys. R ev. D 98, 084004 (2018).

CONFERENCE PAPER

Borzou, A., Sepangi, H.R., Shahidi, S., Yousefi, R.(2009). Brane f(R) gravity and the dark side of the universe . AIP Conf.Proc. 1178. (1). p. 131--137.

Borzou, A., Sepangi, H.R., Shahidi, S., Yousefi, R.(2009). Brane f(R) gravity and the dark side of the universe . AIP Conference Proceedings. 1178. p. 131-137.

DISSERTATION THESIS

Shahidi, Shahab(2009). Virial Mass in DGP Cosmology .