Spotlight on Young Researchers: Paul Hauseux

 

Paul Hauseux was always interested in science, but only recently settled on the researcher path. Before that, his career ambitions stretched from working in sports or music to teaching science. Some years and a PhD later, the French national has come to Luxembourg for his computational engineering Postdoc in the team of ERC grantee Stéphane Bordas at the University of Luxembourg.

“I had the opportunity to do a PhD at University of Lille and this experience with research convinced me to continue in this direction”, Paul says about how he ended up becoming a researcher, adding:

“I like to continuously learn and I have a lot of scientific curiosity. Research gives me freedom and independence and it also enables me to travel, particularly to conferences. In most cases, researchers work in universities and a part of their work is teaching, an aspect I also appreciate.”

After completing his PhD in France, which was funded by the French national radioactive waste management agency (ANDRA), Paul was looking for a place to do a Postdoc. He stumbled across an open position in his field at the Institute of Computational Engineering at the University of Luxembourg, and in January 2016 he came to Luxembourg.

Modelling the effects of uncertainty

Paul works with Prof Stéphane Bordas in the Engineering Science research unit at the University and is a member of the Legato team, which aims to build intuitive and interactive platforms for computational mechanics problems. Paul specifically works on “stochastic finite element methods” – but what exactly is that?

Various fields such as mechanics, geophysics, dynamical systems, statistical physics and mathematical finance rely on modelling what effect uncertainty could have on the output of a system. When it is impossible to analytically solve a problem, numerical methods – such as the ‘finite element method’ are used to develop a model that approximates a solution.

Paul says: ”When parameters involved in the model have a certain degree of uncertainty, stochastic methods, e.g. the stochastic finite element method, are used to take into account this uncertainty. Uncertainties can be modelled by both random variables and random fields in my research.”

“Numerical models and simulations are now commonly used to assist clinicians. I work on the simulation of soft tissue undergoing large deformations and address the problem of quantifying the effect of uncertainties on certain quantities of interest to the user e.g. displacement in a region. The picture shows the numerical results of the displacement of the brain and a target in the brain during brain shift (during a surgery). Monte Carlo methods are employed to propagate uncertainty and so provide statistical results. These methods lead to a collection of independent realisations of the forward model to solve and the picture shows the results for a given set of parameters.”

So what exactly does life look as a computational engineering researcher? It comes to no surprise that daily activities involve spending a lot of time on the machine you are working to improve:

“I spend practically all my day working on a computer. I split my time between implementing new numerical methods and reading scientific papers. Discussions with my colleagues and my advisor are also necessary to make progress and guide my research in the right direction. It is important to be aware of new advances in my field.

“When I obtain interesting results then it is time to write a paper and to attend conferences and/or seminars to show and share my work with other researchers. It also gives me the opportunity to learn, to meet new people and start collaborations. The researcher who is 100% alone and locked in his office is almost non-existent!”

In terms of career goals, Paul would like to have his own research programme and improve the scientific knowledge in his domain. “I would also be glad if my methods can be used by the industry, because there is still a big gap between scientific publications and what it is really made in the industrial sector. On top of that, writing a book before the end of my career is also an objective”, Paul says.

Luxembourg research has “significant potential”

“I originally thought that I would stay for a short experience, but I quickly realised working conditions here are excellent”, Paul says, adding that he was able to extend his initial contact, also pointing out that Luxembourg has some significant potential to become a research destination:

“The creation of the Centre of Excellence in Scientific Computing will enable connections between the different communities. In Luxembourg and with the new campus in Belval, a large diversity of disciplines is present in the same location. All disciplines have everything to gain, to share and bring together important resources concerning computational sciences, because they all use common bases.

“This centre will also help to build partnerships with companies. Finally, most people who come to Luxembourg want to stay because Luxembourg is also a pleasant place to live.”

Paul Hauseux

About Spotlight on Young Researchers

Spotlight on Young Researchers is an FNR initiative to highlight early career researchers across the world who have a connection to Luxembourg. This article is the 13th in a series of around 25 articles, which will be published on a weekly basis. You can see more articles below as and when they are published.

Spotlight on Young Researchers: Yamila Mariel Omar

As part of her Industrial Fellowship – a collaboration between the University of Luxembourg and company Husky – PhD candidate Yamila Mariel Omar helps industry to monetize their proprietary data by means of big data analytics. We speak to the Argentinian national who also became a mother during her PhD.

Spotlight on Young Researchers: Mohammad Zare

Floods across the world have resulted in tremendous economic damage and loss of lives: better tools to predict flood rise and recession are needed. The biggest question facing researchers like Mohammad Zare is how to accurately simulate and predict this complex phenomenon. As part of an Industrial Fellowship between the University of Luxembourg and company RSS-Hydro, the Postdoc Works on improving the simulation and prediction of flash floods, with the goal to develop a decision-making model for flood protection in Luxembourg.

Spotlight on Young Researchers: Bella Tsachidou

Excessive use of fertilisers in agriculture has led to nitrogen pollution, and calls for bio substitutes are getting louder. PhD candidate Bella Tsachidou from Luxembourg Institute of Science and Technology (LIST) gathers scientific evidence on the benefits of biogas residues and their suitability as biofertilisers, while providing support for the modification of nitrogen-policies on European and global level.

Spotlight on Young Researchers: Hameeda Jagalur Basheer

While solar panels appear on more and more rooftops, researchers are still developing ways to boost their efficiency. As part of her PhD at the Luxembourg Institute of Science and Technology (LIST), Indian national Hameeda Jagalur Basheer is developing alternative materials that can help capture the sunlight better and improve efficiency of solar panels.

Spotlight on Young Researchers: Nanotechnology – a future big player in health

Divya Balakrishnan, Dipti Rani and Serena Rollo are women in science working in a field that could have a major impact on how health is managed: In the group of FNR ATTRACT Fellow César Pascual García at the Luxembourg Institute of Science and Technology (LIST), the team works on developing sensors for biochemical applications focusing on medicine.

Spotlight on Young Researchers: Ramping up carbohydrates production

Carbs are all around us: a major constituent in food, they also play a role in many biological processes such as intercellular communication; they are in demand in the pharmaceutical industry, where they are currently used as anticoagulants and in skincare. With the goal of no longer having to rely solely on nature’s production of carbs, scientists have been working on ways to ramp up production. A case for chemistry!

Spotlight on Young Researchers: Michel Thill

For his part-time AFR PhD in Political Science with Ghent University’s Conflict Research Group, Michel Thill researches a little-studied subject: everyday policing practices and interactions between police and people in Bukavu, a provincial capital in the East of the Democratic Republic of Congo. We spoke to the Luxembourg national about insatiable curiosity being a virtue for researchers; the experiences gained during his PhD; and why his research subject is important.

Spotlight on Young Researchers: Hussein Rappel

Hussein Rappel uses a mathematical learning approach to try to predict and simulate physical phenomena. The Iranian national came to Luxembourg in 2014 to join the team of Prof Stephane Bordas at the University of Luxembourg, where he is now in the 3rd year of his PhD in Computational Science – and sees great potential in Luxembourg as a research destination.

Spotlight on Young Researchers: Katharina Baum

When Katharina Baum was a teenager, her mother took her to a presentation about the Human Genome Project. Fascinated, she stood up and asked what she would have to do to be able to study genes. Some years and a degree in mathematics later, the German national and mother of two children now splits her time between Luxembourg and Berlin as part of her two postdocs. In her work at the Luxembourg Institute of Health, Katharina combines computer science, maths and biology to identify faulty regulatory mechanisms in cancerous cells.

Spotlight on Young Researchers: Damien Brevers

Postdoc Damien Brevers has a passion for studying self-control abilities in humans. Having spent time in Belgium and the US building expertise in areas including clinical psychology, sport psychology and brain imaging, the Belgian national has just joined the University of Luxembourg and embarked on a project looking at gambling addiction in the age of online betting.

Spotlight on Young Researchers: Understanding how language manifests in the brain

At KU Leuven, Luxembourg national Jill Kries is part of a research team driven by understanding how cognition and brain structure develop over time in language-related disorders and how this knowledge can be applied in a clinical or educational setting. We take a closer look at the work of the young team.

Spotlight on Young Researchers: Sumit Gautam

While we frequently hear about new trends in mobile and wireless technologies, challenges remain, such as the need to charge devices on a stationary device. At the SnT at the University of Luxembourg, Postdoc Sumit Gautam works on solving the future information and energy requirements of wireless devices, via radio frequency (RF)-based techniques.

Spotlight on Young Researchers: Anna Monzel

Anna Monzel cites her thirst for new knowledge and discoveries as a key contributor in her choosing to follow the path of science. Drawn to Luxembourg because of its interdisciplinary approach, the German national developed a 3D model of the human midbrain for her PhD at the LCSB at the University of Luxembourg – which earned her a Lush Young Researcher Prize.

Spotlight on Young Researchers: Understanding the impact climate change has on crop-threatening insects

A type of insect known as whitefly spreads plant viruses and has devastating effects on the vegetables that we depend on and thanks to climate change their negative impact on agriculture is set to increase in the future. Current methods to protect crops depend on delicate relationships between whiteflies and their natural enemies, our crops, and microbial communities, a delicate balance threatened by climate change. Researchers are working with a ‘climate in the lab’ to get a better understanding of what could happen, with the ultimate goal to generate solutions to protect food security.

Spotlight on Young Researchers: Svenja Bourone

Svenja Bourone is a chemist who has always had a fascination for natural sciences. During her master studies at RWTH Aachen, she became captivated by functional nanomaterials and as chance would have it, a doctoral position opened up in just that field. During her AFR PhD, Svenja developed a new protocol to help with the synthesisation of gold nanoparticles, which she is now putting to use in her work as a Postdoc. The Luxembourg national has a strong desire to return home to the Grand Duchy to continue her work on nanomaterials.

Spotlight on Young Researchers: Maria Pires Pacheco

Maria Pires Pacheco is a problem solver with a fondness for coding, who was always drawn to the scientist in a group of heroes, rather than the classic hero. During her AFR PhD, the Luxembourg national worked on building tools that help simulate the metabolism of a cell, tools she applied to cancer research during her postdoc.

Spotlight on Young Researchers: A hazelnut quality forecasting system

Can we predict the likelihood of a hazelnut tree becoming sick? Or what quality defects, and in what percentage, will be present in the final harvest? Science could soon make this possible, thanks to a hazelnut quality forecasting system based on a combination of machine learning and simulation models.

Spotlight on Young Researchers: Anna Schleimer

In high school, Anna Schleimer thought everything there was to know in science was already known. When she discovered how many unanswered questions there still are, curiosity drove her to become a researcher. The Luxembourg national is now in the 1st year of her AFR PhD, in what is not your most common topic: As a marine biologist, Anna studies fin whales as part of her joint PhD at University of Groningen and University of St Andrews.

Spotlight on Young Researchers: Environmental factors and their role in Parkinson’s Disease

An estimated 10% of Parkinson’s Diseases cases are due to genetic factors – in the search for answers as to what could cause the other 90%, research is increasingly finding evidence pointing to environmental factors. To paint a clearer picture of what role chemicals could play in the disease, researchers are for example looking for ‘fingerprints’ of chemicals in biological samples.

Spotlight on Young Researchers: Turning up the heat on solar absorbers

Using solar absorbers for collection and storage of heat from the sun is an environmentally friendly way to generate heat, yet only 16% of heating is generated from renewable energy. Material scientists are looking for ways to boost this number by making the solar absorber coatings more efficient.

Spotlight on Young Researchers: Carole Lara Veiga de Sousa

Why can our bodies defend itself against some diseases but not others? This is something Carole Lara Veiga de Sousa has always been eager to understand. In the framework of her PhD at the Luxembourg Centre for Systems Biomedicine (LCSB) and Luxembourg Institute of Health (LIH), the Portuguese national took at closer look at the microglial cells – immune cells in the central nervous system – and what impact they have on the brain’s ability to fend of infections.

Spotlight on Young Researchers: Jose-Luis Sanchez-Lopez

Jose-Luis Sanchez-Lopez works with multirotor aerial robots – drones. Despite being early in his research career, the Spanish national’s research is already taking off, having secured him several awards at international competitions. After completing his PhD in 2017, Jose-Luis set his sights on Luxembourg, where he works as a Postdoc at the SnT at the University of Luxembourg, with the goal of giving drones enough AI that they can safely operate autonomously in a range of environments.

Spotlight on Young Researchers – revisited 5 years later: From drones to space robotics

When we wrote about Miguel Olivares Mendez in the 2017 edition of Spotlight on Young Researchers, the researcher was working on an FNR JUMP project, focussing on developing algorithms for autonomous drones. The robotics scientist has continued to build his research career in Luxembourg – 5 years later, Miguel is a Professor leading a research group with a focus on space robotics.

Spotlight on Young Researchers: Xianqing Mao

Xianqing Mao comes from a family of professors and doctors and thus has always had a natural interest in science. The Chinese national completed a medical degree, but felt she still had unanswered questions, so she decided to go abroad and took a leap into biomedical research. After stays in France, the UK, the United States and Belgium, Xianqing is now transitioning from junior to senior researcher at the Luxembourg Institute of Health, where she has already been involved in several projects investigating cancer progression.

Overcoming antiquated ideas about history

To many, the Middle Ages are synonymous with the term the ‘Dark Ages’ – a time of decline. The term was coined hundreds of years ago by the era referring to itself as the ‘Renaissance’ – a rebirth of norms and standards. There is in fact much more to the complexity of the Middle Ages and historians are working on overcoming these antiquated ideas. For this research, Dr Christa Birkel won a 2021 FNR Award in the category ‘Outstanding PhD Thesis’.

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