MsC in Bioinformatics and Biostatistics

I recently obtained a Msc in Bioinformatics and Biostatitsics from Universitat Oberta de Catalunya and Universitat de Barcelona. My capstone project was entitled «Machine learning methods for characterizing single-particle trajectories with anomalous diffusion» under the supervision of Ferran Reverter Comes.

Machine learning methods for characterizing single-particle trajectories with anomalous diffusion

Single-Particle Tracking (SPT) appears to be a potential approach to studying different dynamic processes in the life sciences with recent advances in light microscopy. The physics of life molecules has an inherent instability due to the heterogeneity of free energy states that different types of molecules can show, far from thermal equilibrium and ranging at different scales, from the nanoscale of a single molecule up to the cellular or even organism level. The classification of trajectories is a relevant topic, not only in the biological field at the molecular level but also at the level of animal and human behavior. Besides, this topic combines physical principles with some degree of uncertainty, which habilitates us for exploring the use of ML techniques.


Rankings and Spotify

I have recently presented a contribution in the with Francisco Pedroche on rankings. We have particularized to Spotify. While people around the world stopped, music didn’t: we have shown that during the worst months of the pandemic, the list of the Top-200 hits on Spotify, produced from the streams registered on the popular app, had 18% more songs. The most played songs worldwide, during the months studied, were Dance Monkey (Tones and I), Blinding Lights (The Weeknd), and The Box (Roddy Ricch).

This means that, regardless of whether record companies published new material or not, listeners changed their preferences more often during the pandemic, thus causing an increase in the number of songs that made the lists. Thus, the first quarter of 2019 registered 474 songs on the Top 200 list, whereas in the same period of this year, the number of hits was 557, which represents an 18% increase. This figure reveals a significant increase when compared to the 1% decrease that took place during the same period from 2018 to 2019, or the 9% increase from 2017 to 2018.

Screenshot by Monkey Dance by Tones and I.

Some links to the news on this paper: MUSIC NEWS, TIME24, La Vanguardia, and ABC.

Special Issue «Mathematical and Computational Methods against the COVID-19 Pandemics» in Mathematics (Q1 in JCR)

Mathematics Special Issue CoVID-19

Mathematics can also contribute to the modeling of side problems to the pandemics. We point out some of them, such as data quality analysis, network medicine, healthcare services management, the physical spreading of the virus in the environment, the subsequent impact on the economy, and the social response to confinement government measures.

In any case, all the contributions and developments will be beneficial in many ways aside from coping with pandemics. Some potential topics that this Special Issue will cover, but is not limited to, are as follows: Epidemiological dynamics, diffusion modeling, compartmental and SIR type models, human dynamics, agent modeling of structured populations, network medicine, data quality, artificial intelligence and deep learning models, and data analysis of social media

Further information in Your work is welcome!!!

Diario Libre de Rep. Dominicana. Ingenieros dominicanos aportan avances en el estudio de los números primos y el triángulo de Pascal

News appeared in Diario Libre of the Dominican Republic about my joint work with my students Pedro A. Solares Hernández and Fernando A. Manzano, together with Fco. Javier Pérez Benito. In this work, we study divisibility properties of Pascal’s triangle numbers. Link to the article.

Link to the publication in the mathematical journal Mathematics, from MDPI publisher, 

Modelo matemático para evaluar el impacto energético de los recubrimientos GCover.

En este proyecto, investigadores del Instituto Universitario de Matemática Pura y Aplicada (IUMPA) y de la Escuela Técnica Superior de Arquitectura (ETSA) de la UPV hemos desarrollado un modelo completo para evaluar las prestaciones de uno de los productos de la compañía como aislante térmico en la construcción. La Vanguardia y otros medios se han hecho eco de nuestro trabajo.

20200208 - GCover - La Vanguardia

Podéis leer también la noticia completa también en la página web de la UPV.

J.A. Conejero accreditated as Full Professor

Last may I have received the acreditation as Full Professor from ANECA (Agencia Nacional de Evaluación de la Calidad y Acreditación), deppending from the Spanish Ministry of Education.

It has been a long and winding road since I started my PhD on 1999, and I did not even think about this then. There have been many collaborators and supervised students that have come along with me during these years. I want to thank them for all what I have learned from them and for sharing a little of their time and their life their time with me.

As W. Churchill said: Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.

CyanoFactory Consortium paper appeared on-line

I have been collaborating in the CyanoFactory project R&D project developed in response to the European Commission FP7-ENERGY-2012-1 call “Future Emerging Technologies” and the need for significant advances in both new science and technologies to convert solar energy into a fuel. The project has been coordinated by P. Linbald from Uppsala. The UPV node has been integrated by J.F. Urchueguía, D. Fuente, M. Siurana, L. Lemus, and myself.

Prototype of a cyanobacteria based fuel factory.

CyanoFactory, Design, construction and demonstration of solar biofuel production using novel (photo)synthetic cell factories, was an example of “purpose-driven” research and development with identified scientific goals and creation of new technologies. The present paper overview highlights significant outcomes of the project. It has appeared in Algal Research.

Wakamola, bot para analizar tus hábitos alimentarios y el de tu red.

El proyecto Wakamola, se trata de un bot que, a través de Telegram, simula una conversación con el usuario sobre su dieta, actividad física, enfermedades, edad, peso, red social, etc. El análisis posterior de dicha información permitirá crear una red de relaciones para estudiar las interacciones de los hábitos de la población en relación a su dieta, actividad física, su entorno y los hábitos su red familiar, laboral y de amistades.

En este proyecto colaboro con Juan M. García Gómez, Sabina Asensio y Vicent Blanes del instituto ITACA de la UPV dentro del proyecto europeo H2020 CrowdHealth.

Más información en

Invited Talk at ECTX Conference (Enginnering Computational Technology)

I have been invited to dalivered a talk at The Tenth International Conference on Engineering Computational Technology held in Sitges. In this conference I present some results on algorithmic solutions for managing car-sharing and car-rental companies in order that there was a participatory management with the users. The title of the talk was Iterative algorithms for car rental and car sharing transport management and it was shown within the Special Session Iterative schemes for analyzing nonlinear problems: Numerical and dynamic. The results are part of a joint work with Cristina Jordán and Esther Sanabria-Codesal from Universitat Politècnica de València, too.


Talk at European Conference on Iteration Theory (ECIT 2018)

Iteration Theory  is a branch of mathematics and includes topics related to discrete dynamical systems and functional equations. The aim of these theoretical studies is to model, analyze and understand iterative processes, for example systems with discrete time. Such systems arise in many different fields of application: engineering (eg. control theory and electronics), physics, mechanics, economics, biology, ecology, and so on.

20th ECIT follows the sequence of meetings started in Toulouse 1973. The previous one was held on Innsbruck 2016.

I present my recent work entitled Visibility Graphs of Fractional Logistic Time Series, in collaboration withAinara Mira-Iglesias, Cristóbal Rodero-Gómez, and Carlos Lizama.  There we received very interesting feedback from Prof. Mark Edelman.