Equivalence of the modified gravity equation to the Clausius relation

The forthcoming 2015, ASEAN is being confident to implement ASEAN Free Trade (AFTA). The existence of AFTA is to outstrip trade liberalization due to augment trade volume significantly and transaction easing as well among the members of AFTA, mainly by inducing lower tariffs some certain commodities up to 0%. This paper is conducted in order to examine on what prominent commodity of Indonesia compared to its counterparts namely Brunei, Malaysia, Philippines, Singapore and Thailand. These Indonesia counterparts are selected therefore they were the founding of ASEAN. Furthermore, this paper utilizes a modified Gravity Equation model. This model has an effort to estimate the significance of some parameters of variable from model equation. Thus, it can be detected that what are from these variables from a model equation being as a key determination factor to influence trading transactions. This paper also assesses the adjusted R-squared due to which Indonesia counterparts incur some vantage points as well as beneficial for Indonesia in terms of AFTA. The novelty contribution of this paper is to reveal the dynamics trade spillover between Indonesia some strategic sectors and its counterparts. By doing so, Indonesia is expected to be a dominant player in AFTA 2015 and taking some advantageous from AFTA into Indonesia account. Keywords: AFTA 2015, a modified gravity equation model, analysis of data panelJEL Classification: C33, C51, F15

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Observational constraints on Tsallis modified gravity

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/stab2671 ◽

2021 ◽

Author(s):

Mahnaz Asghari ◽

Ahmad Sheykhi

Keyword(s):

Gravitational Field ◽

Modified Gravity ◽

Large Scale ◽

Cosmological Parameters ◽

Growth Parameter ◽

Acoustic Oscillations ◽

Field Equations ◽

Gravitational Field Equations ◽

Flrw Universe ◽

Clausius Relation

Abstract The thermodynamics-gravity conjecture reveals that one can derive the gravitational field equations by using the first law of thermodynamics and vice versa. Considering the entropy associated with the horizon in the form of non-extensive Tsallis entropy, S ∼ Aβ here we first derive the corresponding gravitational field equations by applying the Clausius relation δQ = TδS to the horizon. We then construct the Friedmann equations of Friedmann-Lemaître-Robertson-Walker (FLRW) universe based on Tsallis modified gravity (TMG). Moreover, in order to constrain the cosmological parameters of TMG model, we use observational data, including Planck cosmic microwave background (CMB), weak lensing, supernovae, baryon acoustic oscillations (BAO), and redshift-space distortions (RSD) data. Numerical results indicate that TMG model with a quintessential dark energy is more compatible with the low redshift measurements of large scale structures by predicting a lower value for the structure growth parameter σ8 with respect to ΛCDM model. This implies that TMG model would slightly alleviate the σ8 tension.

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Thermodynamic properties of modified gravity theories

International Journal of Geometric Methods in Modern Physics ◽

10.1142/s0219887816300075 ◽

2016 ◽

Vol 13 (06) ◽

pp. 1630007 ◽

Cited By ~ 19

Author(s):

Kazuharu Bamba

Keyword(s):

Thermodynamic Properties ◽

Modified Gravity ◽

Equations Of Motion ◽

Apparent Horizon ◽

Second Law Of Thermodynamics ◽

Second Law ◽

Modified Gravity Theories ◽

Gravity Theories ◽

Clausius Relation ◽

The Universe

We review thermodynamic properties of modified gravity theories, such as [Formula: see text] gravity and [Formula: see text] gravity, where [Formula: see text] is the scalar curvature and [Formula: see text] is the torsion scalar in teleparallelism. In particular, we explore the equivalence between the equations of motion for modified gravity theories and the Clausius relation in thermodynamics. In addition, thermodynamics of the cosmological apparent horizon is investigated in [Formula: see text] gravity. We show both equilibrium and nonequilibrium descriptions of thermodynamics. It is demonstrated that the second law of thermodynamics in the universe can be met, when the temperature of the outside of the apparent horizon is equivalent to that of the inside of it.

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The Impact of the Internationalisation of Multinational Banks on Non-financial Foreign Direct Investment in West Africa: A Modified Gravity Equation Approach

Advances in Economics and Business ◽

10.13189/aeb.2020.080104 ◽

2020 ◽

Vol 8 (1) ◽

pp. 32-38

Author(s):

El BekrI Hafsa

Keyword(s):

Foreign Direct Investment ◽

West Africa ◽

Modified Gravity ◽

Direct Investment ◽

Gravity Equation ◽

Equation Approach ◽

Multinational Banks ◽

The Impact

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APLIKASI REJIM PERSAMAAN MODEL GRAVITASI YANG TELAH DIRUBAH PADA KASUS DINAMIKA ARUS PERDAGANGAN INDONESIA DENGAN MITRA DAGANG DARI ASEAN

Buletin Ekonomi Moneter dan Perbankan ◽

10.21098/bemp.v15i2.62 ◽

2012 ◽

Vol 15 (2) ◽

pp. 57-76 ◽

Cited By ~ 1

Author(s):

Barli Suryanta

Keyword(s):

Trade Liberalization ◽

Free Trade ◽

Modified Gravity ◽

Model Equation ◽

Gravity Equation ◽

Model Analysis ◽

Equation Model ◽

Trade Volume ◽

Vantage Points

The forthcoming 2015, ASEAN is being confident to implement ASEAN Free Trade (AFTA). The existence of AFTA is to outstrip trade liberalization due to augment trade volume significantly and transaction easing as well among the members of AFTA, mainly by inducing lower tariffs some certain commodities up to 0%. This paper is conducted in order to examine on what prominent commodity of Indonesia compared to its counterparts namely Brunei, Malaysia, Philippines, Singapore and Thailand. These Indonesia counterparts are selected therefore they were the founding of ASEAN. Furthermore, this paper utilizes a modified Gravity Equation model. This model has an effort to estimate the significance of some parameters of variable from model equation. Thus, it can be detected that what are from these variables from a model equation being as a key determination factor to influence trading transactions. This paper also assesses the adjusted R-squared due to which Indonesia counterparts incur some vantage points as well as beneficial for Indonesia in terms of AFTA. The novelty contribution of this paper is to reveal the dynamics trade spillover between Indonesia some strategic sectors and its counterparts. By doing so, Indonesia is expected to be a dominant player in AFTA 2015 and taking some advantageous from AFTA into Indonesia account.Keywords: AFTA 2015, a modified gravity equation model, analysis of data panelJEL Classification: C33, C51, F15

Download Full-text