Zobrazeno 1 - 10
of 283
pro vyhledávání: '"Saikat Chakraborty"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 1, Pp 1-24 (2024)
Abstract We carry out a compact phase space analysis of a non-canonical scalar field theory whose Lagrangian is of the form $$F(X)-V(\phi )$$ F ( X ) - V ( ϕ ) within general relativity. In particular, we focus on a kinetic term of the form $$F(X)=\
Externí odkaz:
https://doaj.org/article/4508f7604adb4e00ae91ed14c13fbbb2
Publikováno v:
Physics Letters B, Vol 842, Iss , Pp 137962- (2023)
We address the question of the uniqueness of spatially flat ΛCDM-like evolution for FLRW cosmologies in General Relativity, i.e. whether any model other than the spatially flat ΛCDM can give rise to the same type of scale factor evolution. Firstly,
Externí odkaz:
https://doaj.org/article/caa90142eb8d4be89a8288e0d51dd257
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-36 (2021)
Abstract In this paper, we study a cosmological model inspired in the axionic matter with two canonical scalar fields $$\phi _1$$ ϕ 1 and $$\phi _2$$ ϕ 2 interacting through a term added to its potential. Introducing novel dynamical variables, and
Externí odkaz:
https://doaj.org/article/12c8fe5836a94de6aa6bea6b1d3c2116
Autor:
Saikat Chakraborty, Daniele Gregoris
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-30 (2021)
Abstract Some cosmological models based on the gravitational theory $$f(R)=R+\zeta R^2$$ f ( R ) = R + ζ R 2 , and on fluids obeying to the equations of state of Redlich–Kwong, Berthelot, and Dieterici are proposed for describing smooth transition
Externí odkaz:
https://doaj.org/article/add16d9ed8de4441958145ca9f1809ee
Autor:
Saikat Chakraborty
Publikováno v:
PostScriptum: An Interdisciplinary Journal of Literary Studies, Vol 6, Iss 1, Pp 110-119 (2021)
This paper attempts to show Tagore’s Bolai and Ghosh’s Bimal as the harbingers of an imagination that becomes a passage to a space beyond humanism. So then, what is posthumanism or transhumanism? Posthumanism is a philosophical school that imag
Externí odkaz:
https://doaj.org/article/495ef09ce7784304bf9b0dc2adfcff08
Autor:
Sankari Radhakrishnan, Ramesh Venkatapathy, P D Balamurali, Karthik Shree V Prashad, B Premalatha, Saikat Chakraborty
Publikováno v:
SRM Journal of Research in Dental Sciences, Vol 9, Iss 4, Pp 164-167 (2018)
Background: Oral cancer is one of the most prevalent cancers worldwide. The oral squamous cell carcinoma (OSCC) is graded for the proper treatment planning, and it has been a subjective phenomenon. This grading depends on several features, of which t
Externí odkaz:
https://doaj.org/article/af5492b6d4494c7487fb24f6a6e6b101
Autor:
Kostadinova, E G, Greco, Shannon, Murdock, Maajida, Barraza-Valdez, Ernesto, Hasson, Hannah R, West-Abdallah, Imani Z, Harper, Cheryl A, Brown, Katrina, Scime, Earl, Dollar, Franklin, Greninger, Carl, Stanley, Bryan, Oxford, Elizabeth, Schaffner, David, Provenzani, Laura, Curry, Chandra Breanne, Fracchiolla, Claudia, El-Adawy, Shams, Thakur, Saikat Chakraborty, Orlov, Dmitri, Anderson, Caroline
This report is a summary of the mini-conference Workforce Development Through Research-Based, Plasma-Focused Science Education and Public Engagement held during the 2022 American Physical Society Division of Plasma Physics (APS DPP) annual meeting. T
Externí odkaz:
http://arxiv.org/abs/2303.06390
Publikováno v:
Redox Biology, Vol 2, Iss C, Pp 865-872 (2014)
Resveratrol (5-[(E)-2-(4-hydroxyphenyl)ethenyl]benzene-1,3-diol), a redox active phytoalexin with a large number of beneficial activities is also known for antibacterial property. However the mechanism of action of resveratrol against bacteria remain
Externí odkaz:
https://doaj.org/article/1f1d2b5dc2ac4a27b7915f086e60ca39
Publikováno v:
Universe, Vol 4, Iss 10, p 105 (2018)
In this work, we present some cosmologically relevant solutions using the spatially flat Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime in metric f ( R ) gravity where the form of the gravitational Lagrangian is given by 1 α e α R . In the lo
Externí odkaz:
https://doaj.org/article/87ea84e4f2ec4d6c877e4567f1e3060a
In this paper, we develop a method of analyzing long transient dynamics in a class of predator-prey models with two species of predators competing explicitly for their common prey, where the prey evolves on a faster timescale than the predators. In a
Externí odkaz:
http://arxiv.org/abs/2210.04097