The ICREAs

ICREA research professors form a vibrant community of scientists and researchers in all areas of knowledge that contribute to the advancement of humankind by exploring, interpreting and questioning. Have a look and learn about their amazing discoveries and findings here:

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  • Voityuk, Alexander

    Universitat de Girona (UdG)

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    Voityuk, Alexander

    Research Professor at
    Universitat de Girona (UdG)
    Experimental Sciences & Mathematics
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    Research interests

    Electron transfer (ET) and excitation energy transfer (EET) are very important processes in biochemistry and material science. The main area of my research is the development of theoretical and computational tools to explore ET and EET in biomolecules and organic materials and the use of the elaborated techniques to understand the underlying mechanisms that control charge and exciton migration in the molecular systems. The effects of structural fluctuations on the ET and EET properties of DNA are of special interest.

    Key words

    Computational modeling, quantum-chemical calculations, molecular dynamics, electron and excitation energy transfer, DNA, Proteins, organic semiconductors
  • Wagner, Peter

    Universitat de Barcelona (UB)

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    Wagner, Peter

    Research Professor at
    Universitat de Barcelona (UB)
    Social & Behavioural Sciences
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    Research interests

    Located in the areas of comparative historical and political sociology, social and political theory, and the sociology of the social sciences, Peter Wagner's research is focused on the identification and comparative analysis of different forms of social and political modernity and of the historical trajectories of modern societies. Initially, he applied it in a comparative political sociology of European national societies. Subsequently, he analyzed the process of European integration by reviewing both the institutional transformations of European societies over the past two centuries and the transformations in the self-understanding of Europe. "Modernity" then does not appear as a single and unique model of social organization, but rather emerges as variable interpretations of basic human problématiques in the light of specific historical experiences. Currently, a key task of social analysis is the comparative analysis of plural forms of modernity in their global context.

    Key words

    political sociology, social and political theory, comparative-historical sociology, European studies, sociology of the sciences
  • Wanner, Leo

    Universitat Pompeu Fabra (UPF)

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    Wanner, Leo

    Research Professor at
    Universitat Pompeu Fabra (UPF)
    Humanities
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    Research interests

    Leo Wanner is working in the field of computational linguistics, teaching the computer how to supply people with information that might be useful to them in their language and how to serve as interpreter between people who do not speak a common language. Leo's research foci include automatic multilingual report generation, automatic summarization of written material, data-driven parsing, and concept extraction. He is furthermore interested in lexicology and lexicography, and there, in particular, in the recognition, representation and use of lexical idiosyncrasies by both native speakers and learners of a language.

    Key words

    computational linguistics, text generation, summarization, lexicology, lexicography.
  • Williams, Andrew

    Universitat Pompeu Fabra (UPF)

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    Williams, Andrew

    Research Professor at
    Universitat Pompeu Fabra (UPF)
    Humanities
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    Research interests

    My interests lie in moral and political philosophy and practical rationality, as well as intersecting areas in economics and politics. I am especially interested in issues of distributive justice, including ones arising across states and generations. My current work examines how egalitarian distributive principles should accommodate concerns with risk and with personal and collective choice and responsibility. It also explores how such principles should guide the design of social institutions that shape the prospects of children, parents, the elderly, and future generations.

    Key words

    Political Philosophy, Ethics, Rational Action, Distributive Justice, International Ethics, Intergenerational Ethics, Liberalism, Political Authority, John Rawls, Demographic Change, Climate Change

    ORCID

    : orcid.org/0000-0001-7907-8991

  • Winter, Andreas

    Universitat Autònoma de Barcelona (UAB)

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    Winter, Andreas

    Research Professor at
    Universitat Autònoma de Barcelona (UAB)
    Experimental Sciences & Mathematics
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    Research interests

    I work on quantum information, especially quantum Shannon theory, which aims at incorporating information-theoretic ideas into physics. The Shannon theoretic approach has succeeded in quantifying entanglement as a resource in information processing task, and likewise for other properties of quantum systems such as channel and storage capacities of quantum systems. One of my favourite topics is the interplay between classical and quantum information, evident in the intricate structure of local operations in composite quantum systems (LOCC), such as data hiding or "information locking". I also work on additivity and non-additivity of quantum channel capacities, quantum data compression, and zero-error quantum communication. Further quantum information interests include statistical mechanics, entropy characterization and entanglement measures. But at heart I am a mathematician and will still get fascinated by classic problems: existence of Hadamard matrices, incompleteness, etc.

    Key words

    quantum information, quantum theory, discrete mathematics, probability

    ORCID

    : orcid.org/0000-0001-6344-4870

    RESEARCHER ID

    : C-4185-2016

  • Yaroshchuk, Andriy

    Universitat Politècnica de Catalunya (UPC)

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    Yaroshchuk, Andriy

    Research Professor at
    Universitat Politècnica de Catalunya (UPC)
    Experimental Sciences & Mathematics
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    Research interests

    The keyword is the behaviour of fluids at nano-scale. I study the transfers of ions and water molecules through nano-metric (tens of nanometers) barrier layers of composite nanofiltration membranes. They are used, for example, to remove hardness from seawater. Another example is the transfer of ions and water through nano-porous track-etched membranes having identical cylindrical pores. I also study processes of current-induced concentration polarization of nano-/micro-interfaces where the concentration polarization is strongly-coupled to electroosmosis. Recently, I discovered that a layered structure consisting of a micro-perforated ion-exchange membrane and a nanoporous layer can have very interesting properties useful for AC electroosmotic pumps. Another topic is experimental and theoretical studies of ion transfer across polyelectrolyte multilayers where we have recently discovered very high (>1000) selectivities in the electrically-driven transfer of ions of different charge magnitudes. I'm also interested in the emerging membrane process of forward osmosis trying to understand where it can be better than the more traditional pressure-driven processes (e.g., reverse osmosis).

    Key words

    nanofluidics, electrokinetics, electrochemistry, membrane, nanofiltration, colloid