Results 31 to 40 of about 101,603 (299)
Modified Gravity via Spontaneous Symmetry Breaking
, 2004 We construct effective field theories in which gravity is modified via spontaneous breaking of local Lorentz invariance. This is a gravitational analogue of the Higgs mechanism.
A closely-related example was considered in N. Arkani-Hamed +23 more
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The m->0 limit for massive graviton in dS_4 and AdS_4. How to circumvent the van Dam-Veltman-Zakharov discontinuity [PDF]
, 2000 We show that, by considering physics in dS_4 or AdS_4 spacetime, one can circumvent the van Dam - Veltman - Zakharov theorem which requires that the extra polarization states of a massive graviton do not decouple in the massless limit.
Allen +30 more
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Građevinar, 2023 This paper aimed to determine the effects of a pulse signal of near-fault ground motion on the dynamic response of gravity dams, including dam-reservoir-foundation interaction, using different reservoir modelling approaches such as Westergaard, Lagrange,
Ahmet Can Altunisik +2 more
doaj +1 more source
More about spontaneous Lorentz-violation and infrared modification of gravity
, 2005 We consider a model with Lorentz-violating vector field condensates, in which dispersion laws of all perturbations, including tensor modes, undergo non-trivial modification in the infrared. The model is free of ghosts and tachyons at high 3-momenta.
A. Nicolis +20 more
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Formation of corner waves in the wake of a partially submerged bluff body [PDF]
, 2015 We study theoretically and numerically the downstream flow near the corner of a bluff body partially submerged at a deadrise depth Δh into a uniform stream of velocity U, in the presence of gravity, g. When the Froude number, Fr=U/√gΔh, is large, a three-
Korobkin, A. +3 more
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Activism as education in and through the youth climate justice movement
British Educational Research Journal, EarlyView.Abstract Young people worldwide are increasingly participating in a global movement for climate justice, yet to date, little research has examined how youth climate justice activists conceive of and experience activism as education. The present study used in‐depth, semi‐structured interviews with 16 US climate justice activists (aged 15–17) to address ...
Carlie D. Trott
wiley +1 more source
Nonlinear analysis of concrete gravity dams under normal fault motion [PDF]
Journal of Structural and Construction Engineering, 2016 The importance of the seismic behavior of concrete gravity dams in their safety evaluation and stability is inevitable. Many factors affect the prediction of the behavior of concrete dams such as dam-foundation-reservoir interaction, dam and foundation ...
Mehdi Alijani Ardeshir +2 more
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On the relevance of the dam break problem in the context of nonlinear shallow water equations [PDF]
, 2009 The classical dam break problem has become the de facto standard in validating the Nonlinear Shallow Water Equations (NSWE) solvers. Moreover, the NSWE are widely used for flooding simulations.
Dutykh, Denys, Mitsotakis, Dimitrios
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One‐Pot Synthesis of a Small Synthetic Ligand for Antibody Purification
Biotechnology and Bioengineering, EarlyView.One‐pot liquid‐phase synthesis of the synthetic ligand B1Al2A2 enables controllable ligand density and efficient capture of IgG and IgY with high recovery and purity, streamlining small‐ligand affinity purification workflows. ABSTRACT The development of synthetic affinity ligands offers a cost‐effective alternative to traditional biological ligands ...
Carolina Mota Natal +8 more
wiley +1 more source
Ocean Energy: Using the Ocean's Tides, Waves, and Heat to Generate Electricity [PDF]
, 2006 Key facts: - The oceans' tides, waves, current, and heat can be used to generate electricity. These resources are renewable, because the moon's gravity drives tides, and winds create waves.
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