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Research Fellows

Carlos Gracia Lázaro

Dr. Carlos Gracia Lázaro

Research Fellow
Dr. Carlos Gracia Lázaro was born in Getxo (Basque Country, Spain) in 1970 and moved to Zaragoza in 1974, where he has been living since then. He attended National Distance Education University of Spain and obtained the BS in Physics in 2006. He got his MSc in Physics and Physical Technologies from University of Zaragoza and some years later, the PhD in Physics (Summa Cum Laude) at the Department of Condensed Matter Physics of the same university (2012), with a thesis entitled “Dynamics and Collective Phenomena of Social Systems”. Since then, he has been a member of the Institute for Biocomputation and Physics of Complex Systems (BIFI) of the University of Zaragoza,
where he currently works as a research fellow at COSNET Lab. His research interests are mainly focused on Evolutionary Game Theory, Social Dynamics and Complex Networks, applying Physics and Mathematics to Social and Biological Sciences, including theoretical and experimental studies on cooperation in human society. He has published, jointly with members of COSNET Lab and other universities, several papers in top international scientific journals (Nature Communications, PNAS, Scientific Reports, Physical Review E, Science Advances, PLoS ONE, etc.) and has presented his results at various international conferences and workshops.

Agnieszka Czaplicka

Dr. Agnieszka Czaplicka

Postdoctoral Fellow
Agnieszka’s main area of research is Physics of Complex Systems. She studies topological and dynamical properties of various types of Complex Networks.
Keywords: Statistical Physics, Complex Networks, Stochastic processes, Simulations of social agents, Collective Dynamics, applying Physics and Mathematics to Social and Biological Sciences.

Alfredo Ferrer

Alfredo Ferrer

Software Developer
Alfredo Ferrer Marco was graduated in Computer Science at the Higher Polytechnic Engineering Center (CPS) of the University of Zaragoza in 2009. Shortly afterward, he joined the Institute for Biocomputation and Physics of Complex Systems (BIFI) as a software developer. During these years, Alfredo has attended several scientific and business meetings or events. He masters different programming languages and platforms such as: C++, Java, JavaScript, MySQL, jQuery, PHP, Cloud Computing, etc. Alfredo actively participated in the development of the Web application used for running the Prisoner’s Dilemma experiment
that took place in Zaragoza in 2011. The application was developed in Ruby On Rails, a technology used by different websites like Twitter. He also implemented a MySQL protocol to handle and manage experimental datasets. Alfredo has also been the leading software developer in several other social dilemma’s experiments such as the one exploring reputation in dynamical networks and that inspecting how cooperation evolves across an individual lifetime. He is currently the main software developer in the IBSEN Project (Bridging the Gap: from Individual Behavior to the Socio-technical Man).
Former Research Fellows and COSNET members

Emanuele Cozzo

Dr. Emanuele Cozzo
Emanuele Cozzo graduated in Physics at the University of Roma “La Sapienza”, where he got a bachelor degree in Physics with a dissertation on non-linear dynamical systems under the supervision of Prof. P. M. Santini. In 2010, he obtained the Master degree for a work dealing with non-linear diffusion models with applications in Biology under the supervision of Prof. A. Bazzani. In 2011, he started his PhD at Cosnet Lab, BIFI under the supervision of Professor Y. Moreno. Initially, his research focused on Systems Biology’s models and diagnostics tools for unraveling topological properties of biological networks.
He successfully defended (summa cum laude) his PhD Thesis on the subject of Multilayer Networks in February 2016. His current research interests include: formal representation of multilayer networks, spectral properties of multiplex networks, topological measures for multilayer networks, and non-linear dynamics on multilayer systems. He has published several articles in peer-reviewed journals and has attended numerous national and international conferences and summer schools. Additionally, he has spent several months as a visiting student at the Institute for Scientific Interchange ISI, in Turin, Italy (2011).

Raquel Alvarez Baños

Dr. Raquel Alvarez Baños
Dr. Raquel Alvarez Baños (Logroño, La Rioja, Spain, 1986) received her PhD in July, 2014, at the Department of Theoretical Physics, University of Zaragoza, where she also obtained her BS in Physics (2009) and her MSc in Physics and Physical Technologies (2010). Her thesis, entitled “Collective behavior and information structure in socio-technical networks”, is focused on 2 complex networks, more specifically, on online social networks, where data is collected from online platforms. Among the wide variety of platforms, she mainly analyzes data from Twitter, which offers a wide access to a distinct kind
of data for her purposes. Raquel is interested in problems such as: information diffusion, the location of relevant information spreaders, characterization of the dynamics and structure of online social movements, as well as in the study of data-driven models intended to bridge the gap between simulations and the observed behavior in real data. Currently, Raquel is a member of the Institute for Biocomputation and Physics of Complex Systems (BIFI), and a research scientist at the Science Technology Facilities Council, Harwell Campus, Oxfordshire, UK.

Joaquin Sanz Remón

Dr. Joaquín Sanz Remón

Joaquín Sanz Remón finished his studies in Physics –Bachellor & MSc- in 2009 and 2010, respectively. He finishing his PhD at Cosnet lab at the Institute for Biocomputation and Physics of Complex Systems (BIFI) of the University of Zaragoza, under the supervision of Prof. Yamir Moreno in October 2014. His work was supported by a FPI grant of the Aragón Government as well as by a FPU grant of the Spanish Ministry of Education. His research activity is organized around two thematic poles: the development of diffusive models of disease spreading on structured populations for the description of persistent diseases like Tuberculosis and the study of bio-molecular networks at the sub-cellular level: transcriptional regulatory circuits
and protein-protein interaction systems. He has published several articles in journals such as: PloS One, Physical Review E or BMC Systems Biology, and works on a regular basis as a referee for journals like PRE, PRL, Scientific Reports, OMICSMedical Sciences and PLoS One, among others. He has attended numerous national and international conferences and summer schools. Additionally, he has completed two research stages at the Institute for Scientific Interchange ISI, in Turin, Italy (2011) and the Polythechnical University of Catalunya with Prof. Jordi García Ojalvo (Barcelona, Spain, 2012). Dr. Sanz is currently a Postdoctoral Fellow at Barreiro Lab at the Hospital Sainte-Justine, Montreal, Canada.

Javier Borge-Holthoefer

Dr. Javier Borge-Holthoefer


Dr. Javier Borge-Holthoefer completed his PhD at the Department of Computer Science and Mathematics of the University Rovira i Virgili under the supervision of Prof. Alex Arenas and later, he worked as a Post- Doctoral Researcher at Cosnet Lab-BIFI, University of Zaragoza. During his stay at COSNET Lab-BIFI (2010- 2013), his scientific research mainly fluctuated from Cognitive Science to Social Science (emergence of collective behavior, information diffusion, etc.), within a common complex networks framework. In these 3 years, he published more than 15 peer reviewed articles on different subjects and 3 Book Chapters contributions (“Online Networks and the Diffusion of Protests”-
Chapter contribution to Analytical Sociology –Norms, Actions and Networks-, “The “Indignados” Movement: Time Dynamics, Geographical Distribution, and Recruitment Mechanisms”- Chapter contribution to the Online Collective Action: Dynamics of the Crowd in the Social Media-, and “Modeling Epidemic Spreading in Complex Networks: Concurrency and Traffic”- Chapter contribution to the Handbook of Optimization in Complex networks). He has directed a PhD Thesis together with Prof. Yamir Moreno. He worked in the Social Computing area at Qatar Foundation and nowadays at the Internet Interdisciplinary Institute (IN3) of the Open University of Catalunya. He is still a BIFI member.

Pablo Piedrahita

Pablo Piedrahita
Pablo Piedrahita is a PhD student at Cosnet Lab, BIFI. He was born in Cartagena de Indias, Colombia, in 1983 and studied at the University of Antioquia. Pablo obtained a major degree (Licentiate) in Physicist in 2008. In 2009, he moved to Zaragoza, Spain, where he got his MSc in Physics and Physical Technologies at the University of Zaragoza (2010). After two years abroad, he began his doctoral research under the supervision of Prof. Yamir Moreno on Complex Systems and Non-linear
Dynamics. His background is on Chaos, Synchronization, Integrate-and-fire models, Complex Networks, fMRI data (brain), Fiber Bundle Models and on-line social networks. In 2014, he has been a visitor at the University of Limerick, Ireland for 3 months with Professor James P. Gleeson. He has also attended several conferences and schools and has published the results of his research in a number of peer-reviewed journals.