Results 101 to 110 of about 234 (191)
Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads
The RAND Journal of Economics, EarlyView.ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
wiley +1 more source
Experimental Studies and Modeling of the Degradation Process of Poly(Lactic-co-Glycolic Acid) Microspheres for Sustained Protein Release. [PDF]
Polymers (Basel), 2020 Netti PA, Biondi M, Frigione M.
europepmc +1 more source
Gaussian Process Regression for Materials and Molecules. [PDF]
Chem Rev, 2021 Deringer VL +5 more
europepmc +1 more source
Wasserstein-infinity stability and mean field limit of discrete interaction energy minimizers
In this paper we give a quantitative stability result for the discrete interaction energy on the multi-dimensional torus, for the periodic Riesz potential. It states that if the number of particles $N$ is large and the discrete interaction energy is low,
Shu, Ruiwen
core
Late Holocene moisture variability in Arctic Alaska from chitin δ18O
Boreas, EarlyView.Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley +1 more source
NAADF: Globally Illuminated Voxel Worlds Accelerated with Nested Axis‐Aligned Distance Fields
Computer Graphics Forum, EarlyView.Abstract Achieving realistic rendering of 3D scenes in real time using path tracing is challenging due to the high sample count required, with ray tracing as the bottleneck. Focusing on voxels as a geometry representation offers significant opportunities for optimizations, especially for tracing the rays, but also for computing the samples.
A. Ulschmid +4 more
wiley +1 more source
Anchor Flow Maps: Efficient Sampling and Approximation of the Entire Flow Map
Computer Graphics Forum, EarlyView.Abstract Flow maps are a fundamental concept for the visualization and analysis of time‐dependent flows. A common approach is to apply sampling and reconstruction – which comes with a number of problems: flow maps are high‐dimensional functions with locally large gradients which makes approximations very challenging.
D. Stelter +3 more
wiley +1 more source
Children &Society, EarlyView.ABSTRACT In recent decades, youth activism has experienced a global resurgence, playing a pivotal role in advocating for social and political change across diverse national and international contexts. Drawing on empirical data from a study of high school students in diverse Washington, DC public schools, this paper offers a unique perspective on youth ...
Vanessa R. Sperduti +3 more
wiley +1 more source
Reducción de perturbaciones mediante molificación discreta y umbralización por wavelets.
, 2007 This paper compares two tools for noise reduction on biosignals: Wavelet thresholding and Discrete Mollification. Both have previously been used for solving problems with high sensitive to noise presence, especially in the regularization of Ill-Posed ...
Acosta, Carlos Daniel +3 more
core
Estimating the total mortality of seabirds following a marine heat wave
Conservation Biology, EarlyView.Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers +3 more
wiley +1 more source