Angélica González

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Species interactions play key roles in linking the responses of populations, communities, and ecosystems to environmental change. For instance, species interactions are an important determinant of the complexity of changes in trophic biomass with variation in resources. Water resources are a major driver of terrestrial ecology and climate change is expected(More)
Clustering is a branch of multivariate analysis that is used to create groups of data. While there are currently a variety of techniques that are used for creating clusters, many require defining additional information, including the actual number of clusters, before they can be carried out. The case study of this research presents a novel neural network(More)
This work presents a system for automatically evaluating the interaction that exists between the atmosphere and the ocean’s surface. Monitoring and evaluating the ocean’s carbon exchange process is a function that requires working with a great amount of data: satellite images and in situ vessel’s data. The system presented in this study focuses on(More)
Nearly one in three US banks employs at least one board member who is either an ex-bank regulator or a (former) advisor to a bank regulator. We show that these connections undermine regulatory discipline and transfer wealth from taxpayers to the shareholders of connected banks. Connected banks extract higher public subsidies by shifting risk to the(More)
Ecological processes that determine the abundance of species within ecological communities vary across space and time. These scale-dependent processes are especially important when they affect key members of a community, such as ecosystem engineers that create shelter and food resources for other species. Yet, few studies have examined the suite of(More)
time resolution study of interplanetary parameter correlations with magnetospheric activity, The evolution from weak to strong geomagnetic activity: an interetation in terms of deterministic chaos, Geophys. Res. Dynamics in Economics and Finance, in The economy as an evolving complex system, vol V of SFI Studies in the sciences of complexity, A dynamical(More)
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This paper investigates the large and diverse discounts in UK open offers and placings. Large discounts are a substantial cost to shareholders who do not buy new shares. The existing literature mainly examines US firm-commitment offers and private placements, but UK open offers and placings differ from both types of US offer. The paper presents evidence(More)