Results 161 to 170 of about 167,327,776 (267)

Gravitational wave memory in modified gravity theories

reservedAlthough the permanent distortions of spacetime after the passage of gravitational waves, a phenomenon predicted by Einstein’s General Relativity known as the gravitational wave memory effect, have not yet been observed, its detection is expected
ROSATELLO, BENEDETTA
core  

International Trade and Monopolistic Competition without CES: Estimating Translog Gravity [PDF]

This paper derives a micro-founded gravity equation in general equilibrium based on a translog demand system that allows for endogenous markups and rich substitution patterns across goods.
Novy, Dennis
core  

Pesticide MRLs as Trade Barriers: Evidence From Vietnam's Coffee and Rice Exporters

Agribusiness, EarlyView.
ABSTRACT As tariffs have declined globally through bilateral and regional trade agreements, food safety standards have emerged as significant determinants of agricultural trade flows. This study examines the impact of maximum residue limits (MRLs) for five pesticides—Azoxystrobin, Chlorpyrifos, Chlorantraniliprole, Clothianidin, and Cyhalothrin—on ...
Nhat Mai Nguyen, Hoa‐Thi‐Minh Nguyen, Kaliappa Kalirajan   +2 more
wiley   +1 more source

Extended Maxwell equations derived from spacetime geometry. [PDF]

Sci Rep
Su B.
europepmc   +1 more source

Not All Agreements Are Equal: Heterogeneous Effects of RTAs on Latin American Agri‐Food Exports, 1990–2019

Agribusiness, EarlyView.
ABSTRACT Since the final decade of the 20th century, Latin American countries have increasingly regarded the signing of regional trade agreements (RTAs) as a promising strategy for expanding their exports. Within this context, the main objective of this study is to assess the impact of RTAs on agri‐food exports in Latin America over the period 1990 ...
María‐Isabel Ayuda, Ignacio Belloc, Vicente Pinilla   +2 more
wiley   +1 more source

Classical theories of gravity produce entanglement. [PDF]

Nature
Aziz J, Howl R.
europepmc   +1 more source

The Influence of Common Language on the Trade of Wheat and Bakery Products

Agribusiness, EarlyView.
ABSTRACT This study examines whether sharing a common official language increases the probability that two countries engage in bilateral trade of wheat and bakery products. Using a binary choice framework applied to 54,780 country‐pair observations for 2023, probit and logit models of the extensive margin of trade are estimated, with a focus on whether
Felipe Durães do Nascimento Monteiro Barbosa, Dragan Miljkovic   +1 more
wiley   +1 more source

Isotropic fluid structures and role of non-metricity on their dynamics governed by an electric charge: A theoretical study. [PDF]

PLoS One
Naseer T, Sharif M, Waqas M, Andrade J, Emara A.   +4 more
europepmc   +1 more source

Evolution of Physical Intelligence Across Scales

Advanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu, Tianyun Huang, Aming Li, Pengyu Lv, Tingting Qin, Wenhui Chen, Hui Wei, Huiling Duan   +7 more
wiley   +1 more source

Master field equations for spherically symmetric gravitational fields beyond general relativity. [PDF]

Nat Commun
Carballo-Rubio R.
europepmc   +1 more source