Results 41 to 50 of about 1,584,853 (313)
Pulling back the curtain on 'behind the border' trade costs: The case of EU-US agri-food trade
Spanish Journal of Agricultural Research, 2017 With the rise of anti-free-trade sentiment on both sides of the Atlantic, there is a growing urgency by trade negotiators to conclude the Trans-Atlantic Trade and Investment Partnership (TTIP) negotiations. The harmonisation of non-tariff restrictions is
Ana I. Sanjuán +2 more
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Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 2023 This study aims to examine the effect of altitude on the acceleration of gravity with the help of smartphone acoustic sensors. The altitude varies from the interval 100-1061 MASL (Mean Above Sea Level), located around the Special Region of Yogyakarta. An
Rio Sebastian +4 more
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Versatile vector tools for efficient protein screening across multiple expression systems
FEBS Open Bio, EarlyView.A unified vector toolkit enables rapid protein expression screening across E. coli, insect, and mammalian cells. A single primer pair amplifies the target gene, which is inserted into any vector via a standardized interface. This streamlined workflow eliminates repeated cloning steps, accelerating the identification of optimal expression conditions for
Zhimin Zhu +5 more
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Gravitational Waves in Scalar–Tensor–Vector Gravity Theory
Universe, 2021 In this paper, we study the properties of gravitational waves in the scalar–tensor–vector gravity theory. The polarizations of the gravitational waves are investigated by analyzing the relative motion of the test particles.
Yunqi Liu +3 more
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N-body gravity and the Schrödinger equation [PDF]
Classical and Quantum Gravity, 2007 We consider the problem of the motion of $N$ bodies in a self-gravitating system in two spacetime dimensions. We point out that this system can be mapped onto the quantum-mechanical problem of an N-body generalization of the problem of the H$_{2}^{+}$ molecular ion in one dimension.
Farrugia, P. S. +2 more
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FEBS Open Bio, EarlyView.We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen +5 more
wiley +1 more source
Agricultural Economics (AGRICECON), 2016 The paper complements a new line of research that includes the firm heterogeneity in trade models. The central idea of this research is that only the largest and most efficient firms are capable of exporting. However, the empirical evidence has confirmed
Raul SERRANO +2 more
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Nonperturbative evolution equation for quantum gravity [PDF]
Physical Review D, 1998 A scale--dependent effective action for gravity is introduced and an exact nonperturbative evolution equation is derived which governs its renormalization group flow. It is invariant under general coordinate transformations and satisfies modified BRS Ward--Identities. The evolution equation is solved for a simple truncation of the space of actions.
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Geodesic deviation equation in f (R) gravity [PDF]
General Relativity and Gravitation, 2011 13 pages, 1 figure.
Guarnizo, Alejandro +2 more
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Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank
FEBS Open Bio, EarlyView.Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer +7 more
wiley +1 more source