Research - Juan Fernández

Moving pathogens through hospital transfers

When we move we carry many things with us: clothes, mobile phones, ideas, money… and also pathogens! In this work we construct the largest network of transfers of patients among US hospitals. We show that this transfer network actually correlates with cases of C.diff. infections. Influence of a patient transfer network of US inpatient facilities […]

Observing evolution in (almost) real time!

Ecology Networks

One of the things that the pandemic has done to our world is that the scientific community has turned many of their efforts to understand and try to control it from several disciplines. This extraordinary worldwide collaboration, together with the modern information and communication technologies, efforts to share the data and modern machine learning and […]

Reorganization of mutualistic communities under extinctions

Ecology Networks

There are many ecosystems in which mutualistic relations, the ones that are beneficial for both species in interaction, are crucial for their survival. Piotr Kropotkin noticed very early that mutual aid had to be an important factor in evolution. Examples of this kind of ecosystem are the ones in which we have insects pollinating plants. […]

Coupling networks with flexibility

Networks

In our life we are embedded in different networks - our friendships, our relatives, the hierarchies at the workplace or the transport networks we use in space. This networks are intertwined and their characteristics affect each other in different feedback loops. The study of them in isolation is useful, but in order to advance we […]

Fear of a second wave (we already had 6 and counting…)

Networks Social

The COVID-19 pandemic hit us hard all over the world. Islands are a suitable model for the study of their dynamics due to their quasi-isolation (even more during lockdown). During the first wave we studied the dynamics of the epidemics in the balearic islands and explored different scenarios for the risk of a second wave. […]

Modeling election results

Networks Social

Elections are crucial in democracy and their results form from different mechanisms from the individual to the collective. In this paper we show how a simple model of opinion competition, the Voter Model, with a realistic social context for the agents, based on the spatial population distribution and the commuting patterns of the individuals, is […]