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https://www.selleckchem.com/products/santacruzamate-a-cay10683.html In computed tomography, the reconstruction is typically obtained on a voxel grid. In this work, however, we propose a mesh-based reconstruction method. For tomographic problems, 3D meshes have mostly been studied to simulate data acquisition, but not for reconstruction, for which a 3D mesh means the inverse process of estimating shapes from projections. In this paper, we propose a differentiable forward model for 3D meshes that bridge the gap between the forward model for 3D surfaces and optimization. We view the forward projection as a rendering process, and make it differentiable by extending recent work in differentiable rendering. We use the proposed forward model to reconstruct 3D shapes directly from projections. Experimental results for single-object problems show that the proposed method outperforms traditional voxel-based methods on noisy simulated data. We also apply the proposed method on electron tomography images of nanoparticles to demonstrate the applicability of the method on real data.Do international trade rules and agreements constrain health policy space? A multitude of global actors and institutions with different interests and power can shape national health policy, and trade rules provide one means through which to exert pressure on governments. Yet, the full scope of political pressure on health policy within the global trade regime is insufficiently understood, as previous research largely focussed on challenges to food, alcohol, and tobacco regulations and used small-N case studies. This potentially overlooks other domains of influence and we lack an understanding of quantitative trends and patterns therein. In this article we introduce a novel dataset, WTOhealth, comprising all challenges to national health regulations at the WTO Technical Barriers to Trade (TBT) Committee between 1995 and 2016. The dataset is based on 1496 pages of minutes from 71 TBT meetings. We describ

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