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FAQ Piratage Université Paris-Saclay

margaux.bobet — Thu, 22 Aug 2024 14:07:31 +0000

FAQ Hacking Université Paris-Saclay sylvie.kemenovic Tue, 08/27/2024 - 10:09

The University of Paris-Saclay has suffered a massive cyber attack that has had a major impact on its digital services, affecting all its internal servers.

In particular, a number of services such as email, the intranet, shared spaces and certain business applications are unavailable. Since then, teams from the Information Systems Department (DSI), supported by the French National Agency for Information Systems Security (ANSSI), have been working to gradually restore these services.

Find out more about the FAQ of the University of Paris-Saclay

Event

Université Paris-Saclay

Une cyberattaque par rançongiciel a touché l’Université Paris-Saclay le 11/08/2024.

Laboratoire PPSM : Innover à la frontière des matériaux et de la lumière pour répondre aux enjeux de demain

vraoult — Thu, 07 Nov 2024 19:56:50 +0000

PPSM Laboratory: Innovating at the frontier of materials and light to meet the challenges of tomorrow sylvie.kemenovic Fri, 11/08/2024 - 09:10

Molecules to detect and protect the environment

One of PPSM's priorities is the development of new fluorescent molecular probes for the detection of environmental pollutants. Fluorescent molecules capable of detecting toxic metal ions such as cesium or cadmium at very low concentrations, or pesticides (atrazine, glyphosate), have been or are currently being developed. These systems pave the way for promising applications in contaminated water monitoring, with unrivalled sensitivity, notably through devices integrated into microfluidic chips that enable the design of miniaturized sensors.

Towards innovative luminescent devices

The laboratory is also interested in applications related to luminescent devices. PPSM researchers are working on electrofluorochromic materials and molecules with specific emission properties for display, sensor and security technologies. For example, the misting of fluorophores synthesized in the laboratory for fingerprint detection represents a major breakthrough in forensic science. This process can be used directly in the field, without prior treatment, while increasing detection sensitivity.

A multidisciplinary approach to pioneering solutions

In collaboration with other disciplines such as the humanities and social sciences, PPSM is involved in a wide range of projects, including heritage restoration. The study of ancient materials using photoluminescence techniques provides a better understanding of ancient conservation practices for works of art and archaeological textiles, paving the way for more ecological restoration methods. This specialization reinforces the laboratory's interdisciplinary dimension by combining chemistry and cultural heritage.

Biological and biomedical applications

Another dimension of PPSM's research involves biology and medicine. Researchers have designed fluorescent probes for imaging. These molecules are used to monitor biological processes such as neuronal transmission or to detect disease, as well as to photo-deliver active ingredients. They are also exploring the synthesis of new molecules and materials capable of enhancing energy storage and conversion in biomedical contexts, with applications ranging from neurotransmitter detection to contrast agents for imaging.

Advances in fundamental knowledge

PPSM's research contributes significantly to the advancement of knowledge in key scientific fields such as photochemistry, fluorescence and molecular recognition, as well as the development of specific instrumentation coupling several techniques. By combining these fields with skills in organic synthesis and electrochemistry, the laboratory plays a fundamental role in the design of new molecules and materials, while studying their properties at different spatio-temporal scales thanks to these instrumentations, ranging from the detection of individual molecules to complex devices.

New lines of research

PPSM continues to explore intelligent materials capable of responding to mechanical, light or electrical stimuli. Researchers are currently working on photomechanical systems, where light can induce changes of shape in materials. This advance could pave the way for applications in optical devices or artificial muscles. In addition, research into the combination of plasmonic nanomaterials and redox and/or fluorescent molecules promises breakthroughs in ultra-sensitive detection, notably for biological and environmental sensors, and all-optical control of light conversion phenomena.

Highlights

One of PPSM's flagship achievements is the creation of fluorescent probes capable of detecting toxic compounds in a variety of media, with applications in environmental protection. At the same time, the unit has succeeded in designing photochromic (light-activated) and electrofluorochromic (electrically activated) systems, with applications in security, display and energy storage. These successes have strengthened international collaborations, notably with teams in Japan and the USA, paving the way for new high-performance devices.

Collaborations with companies

The PPSM (ENS Paris-Saclay, CNRS) collaborates with several companies to accelerate the application of its scientific discoveries. Key collaborations include

Crime Science Technology - In partnership with this forensic science company, PPSM has developed an innovative method for detecting latent fingerprints. This technology is based on the fogging of a fluorophore to rapidly reveal invisible fingerprints at crime scenes, saving time and increasing accuracy for law enforcement agencies.
Safran - As part of its research into photochromic materials for optical and energy applications, the laboratory is collaborating with Safran. This partnership has led to the development of “all-optical” neuromorphic materials, capable of modulating their color according to ambient light, an advantage for aeronautics and other industries requiring intelligent systems.
SATT Paris-Saclay - Thanks to the support of this technology transfer accelerator, PPSM has been able to develop detection devices for the agri-food industry, notably for detecting odorous compounds such as boar smell in pork.

Collaborations with research organizations

In addition to its industrial collaborations, PPSM works with several research organizations to further its discoveries and develop new scientific applications:

CEA Saclay - In collaboration with the CEA, PPSM is working on the development of chiral luminescent materials for use in innovative optoelectronic devices. This research focuses in particular on the creation of more efficient systems for energy storage and conversion technologies.
ESRF, Grenoble and Synchrotron SOLEIL - The PPSM is actively involved in research into ancient materials and works of art. Thanks to these large-scale facilities and an ongoing European contract, the laboratory has been able to deepen its studies into ancient textile and painting conservation practices, in conjunction with more environmentally-friendly restoration approaches.

International collaborations

The PPSM relies on strong international collaborations, notably with:

Kumamoto University, Aoyama Gakuin University, Nara Institute of Science and Technology, Japan - These collaborations focus on fluorescence amplification in photocommutable systems. Researchers have developed molecules capable of complete fluorescence quenching and restoration under irradiation, paving the way for super-resolved imaging technologies.
CNR Lecce, Italy - This collaboration involves the development of emissive molecular materials for optoelectronic applications.
University of Seville, Spain - This collaboration concerns the synthesis of photocommutable sugars and their use in cells for the treatment of certain diseases.

These academic and industrial partnerships, at both national and international level, reinforce PPSM's position as a major player in scientific and technological innovation in all fields where fluorescence can provide a solution to the challenges of energy detection, imaging, conversion or storage.

Resumption of studies

Media

The Supramolecular and Macromolecular Photophysics and Photochemistry Laboratory (PPSM) focuses its research on the study of molecules and materials that can be activated by photo-induced phenomena, electrons, ions or biological activity. This work is integrated into crucial fields such as the environment, health, information technology and heritage. These research activities in photochemistry, electrochemistry, nanomaterials and ancient materials are carried out by 44 researchers and doctoral students.

Site du laboratoire PPSM

Patrice Abry, Grand Prix IMT-Académie des Sciences 2024

vraoult — Mon, 21 Oct 2024 19:46:35 +0000

Patrice Abry, Grand Prix IMT-Académie des Sciences 2024 sylvie.kemenovic Wed, 11/06/2024 - 16:58

A specialist in complex systems, Patrice Abry, an alumnus of the École normale supérieure Paris-Saclay (class of 1986, Nicolas Tesla department), made his mark on the field of computer network analysis in the late 90s. In 1998, his groundbreaking work with Darryl Veitch identified the fractal nature of Internet traffic for the first time, revealing previously unsuspected regularities in data flows. This discovery profoundly transformed our understanding of networks and set in motion a series of research projects spanning more than two decades, also impacting crucial fields such as cybersecurity.

Patrice Abry's pioneering approach, combining theory and practice, has established new paradigms in the analysis of complex systems. His research not only contributed to our understanding of network behavior, but also laid the foundations for practical applications still in use today. These advances have paved the way for new analysis tools used in network management and digital security.

Throughout his career, Patrice Abry has maintained a strong link with the fundamental principles of research, while adapting his work to the rapid technological developments in his field. Patrice Abry was awarded the Prix Michel-Monpetit INRIA by the Académie des Sciences in 2020. In 2024, he was once again honored with the Grand Prix IMT-Académie des Sciences.

Resumption of studies

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The Grand Prix IMT - Académie des sciences is awarded to Patrice Abry for his outstanding contributions to the analysis of complex signals.

Lucie Barbier, lauréate du prix Jeunes Talents France #ForWomenInScience 2024

sabrina.titaud — Fri, 18 Oct 2024 09:21:24 +0000

Lucie Barbier, winner of the Jeunes Talents France #ForWomenInScience 2024 award sylvie.kemenovic Wed, 11/06/2024 - 16:52

The stakes of his research: a better understanding of the origins of infertility

After graduating from ENS Paris-Saclay, Lucie pursued a PhD in life and health sciences at Université Paris-Saclay. She specializes in the study of mechanisms linked to infertility. Her research focuses on the links between the mechanical properties of eggs and their quality, with the aim of developing new diagnostic methods for medically assisted reproduction. Indeed, the rate of poor-quality eggs increases with maternal age, leading to more frequent recourse to fertility preservation or assisted reproduction techniques. However, these techniques have a relatively low success rate, as the cellular mechanisms responsible for the age-related decline in egg quality remain poorly understood, making it difficult to provide personalized care for patients suffering from infertility.

Women in science

In addition to her research activities, Lucie is interested in gender equality issues in the scientific field. She advocates greater representation of women in management positions, believing that the organization of research, still largely based on structures historically reserved for men, could evolve to better take into account the diversity of backgrounds and experiences.

L'Oréal-UNESCO Young Talent Award

For over 15 years, the L'Oréal-UNESCO Young Talent Award for Women in Science has been rewarding brilliant doctoral and post-doctoral students at a pivotal moment in their careers. The aim of this award is to remove obstacles to the inclusion of women in scientific careers, an objective that Lucie fully embodies through her exemplary career path. Lucie embodies this new generation of scientists who aspire not only to meet the challenges facing our society, but also to transform mentalities in the world of research.

Honours - Awards

Prix et distinctions

Student

Lucie Barbier, a graduate of the Ecole Normale Supérieure (class of 2016, biology) and currently a post-doc in microfluidics at the Terret & Verlhac Laboratory at the Collège de France, has been awarded the Prix Jeunes Talents France for her work in cell biology and fertility.

Elsa Dupraz, lauréate du Prix Espoir IMT-Académie des Sciences 2024

vraoult — Mon, 21 Oct 2024 19:36:06 +0000

Elsa Dupraz, winner of the Prix Espoir IMT-Académie des Sciences 2024 sylvie.kemenovic Wed, 11/06/2024 - 16:45

A rich academic background

After graduating from ENS Paris-Saclay, Elsa Dupraz turned to information theory and telecommunications, specializing in information processing. Her years at the École enabled her to forge a multi-disciplinary expertise combining scientific rigor and openness to new technologies.

She then pursued her career with a PhD in signal processing, during which she discovered the multiple applications of channel coding. This technique, used to correct errors in data transmissions, quickly became her field of choice. Her thesis, which focused on data compression and transmission reliability, revealed the unexpected potential of channel coding, particularly in areas such as in-memory computing and data storage.

After completing her doctorate, Elsa Dupraz chose to continue exploring new horizons by undertaking a post-doctorate at the University of Arizona, USA. This stay enabled her to deepen her research in an international context, and to discover the scope of channel coding applications beyond telecommunications. She immersed herself in the fields of information storage and in-memory computing, sectors less explored in France, but with a strong potential for innovation.

Her time in the USA broadened her field of research and marked the start of international collaborations with world-renowned research teams, notably at the University of Illinois at Urbana-Champaign and Polytechnique Montréal. These fruitful partnerships led her to focus on channel coding applications in artificial intelligence and high-performance computing, with projects supported by international programs such as the Transatlantic Research Partnership.

Innovative research and international impact

Since 2015, Elsa Dupraz has been a researcher at IMT Atlantique (formerly Télécom Bretagne), where she continues to push the boundaries of channel coding applications. In addition to her work in telecommunications, she is exploring emerging sectors such as DNA storage. This promising field could revolutionize data storage by enabling the creation of extremely compact and durable molecular hard disks. Thanks to her expertise in error correction, Elsa plays a key role in the development of these new technologies.

Between 2019 and 2024, it will be supported by various research programs, enabling it to develop statistical models to improve the reliability of in-memory computing and DNA storage. Today, its research is paving the way for innovations that could transform both the telecoms and data center industries, which face growing energy challenges.

A model for the new generation

With this IMT-Académie des Sciences 2024 Espoir award, Elsa Dupraz's efforts have been rewarded, but her journey has only just begun. Her ability to navigate between different disciplines and develop solutions for concrete problems makes her a rising star in technological research.

Did you know?

Elsa Dupraz's research into channel coding is finding revolutionary applications, such as information storage on DNA, a promising alternative to today's data centers. Thanks to its exceptional density and robustness, synthetic DNA could become a sustainable, energy-efficient information storage medium.

Find out more about the careers of ENS Paris-Saclay alumni on the Réseau normalien.

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Media

Elsa Dupraz, alumni of ENS Paris-Saclay (class of 2007, Nicolas Tesla department), has just been awarded the prestigious Prix Espoir IMT-Académie des Sciences 2024 for her pioneering research into channel coding. Her career is a model of excellence and innovation in telecommunications and beyond.

Le CEPS, un laboratoire au cœur des enjeux de sociétés

vraoult — Mon, 21 Oct 2024 19:02:08 +0000

CEPS, a laboratory at the heart of social issues sylvie.kemenovic Wed, 11/06/2024 - 16:34

Meeting today's economic challenges

CEPS is involved in an innovative project with the EPEE laboratory at the University of Evry Paris-Saclay. The combination of research work and master's and doctoral programs aims to train new cohorts of economists in response to the social challenges raised by public debate and the needs arising from the implementation of specific public policies.

The work carried out is based on the complementarity between theoretical foundations and operational applications, to answer questions as diverse as the links between wealth inequalities, climate change and health effects, and thus guide public and private decision-makers towards practices better adapted to the complexity of the situations encountered. This research is also part of a vast agenda on the allocation of scarce resources, and incentive schemes to achieve normative objectives, whether they come from a market and thus from strategic interactions, or from individual decision-making actors such as a municipality, a region or a state. Finally, this leads to a more global exploration of the smooth functioning of political systems that govern rules, and the way they are adopted, through voting and representation processes, which depending on their format can generate multiple outcomes, or even be manipulable.

Collaboration with other disciplines

CEPS stands out for its collaborations at the interface of other disciplines, including applied mathematics, environmental sciences, demography, history and political science. For example, one of the research projects being carried out involves studying the effects of the historical accumulation of different cultures, as reflected in toponymic diversity, on long-term growth. The aim is to develop new tools for measuring well-being, but also for supporting local democracy, to take better account of this diversity.

These interdisciplinary collaborations are fostered by the rich scientific ecosystem of the Université Paris-Saclay, supported, among others, by the GS Economie et Management. The proximity of the Maison des Sciences de l'Homme (MSH) Paris-Saclay facilitates the creation of interdisciplinary projects and the development of new research synergies.

National and international collaborations

Internationally, CEPS is the driving force behind the Virtual Market Design Seminar, a bi-weekly seminar co-organized with the Max Planck Institute in Bonn, the University of Cologne, and the ZEW (Zentrum für Europäische Wirtschaftsforschung) in Mannheim. This online seminar, launched during the COVID pandemic, brings together researchers from all geographical horizons, without travel, and invites guest speakers to discuss the latest advances in allocating scarce resources and making markets work to achieve socially desirable goals.

This dynamic is also reflected in the organization of annual international events, including theEuropean Workshop on Market Design, a meeting now established in collaboration with ZEW and Rice University, and the Long-Run Dynamics in Economics conference , which focuses on the use of dynamic macroeconomic models to improve understanding of diverse long-term phenomena such as growth, health, demographics, sustainable development and inequalities.

Other, more occasional events, such as the PolEcon Political Economy Workshop last June, which brought together experts at the interface of economics and political science, are proposed each year as CEPS members' research agendas evolve.

Leading publications

Despite its modest team size, CEPS has distinguished itself by publishing articles in leading international journals, testifying to the recognition and influence of its research in a variety of fields. Some of these publications have had a major impact:

“Pairwise Stable Matching in Large Economies”, published in Econometrica in 2021, explores matching processes and their characteristics on the populations involved. It provides new theoretical insights to address multiple applications of resource allocation without the use of a price.
“Multinationals' Sales and Profit Shifting in Tax Havens”, published in the American Economic Journal: Economic Policy in 2022, analyzes multinationals' strategies towards tax havens, an important topic in current debates on taxation and international economic regulation.
“Intragenerational Inequality Aversion and Intergenerational Equity”, published in the European Economic Review in 2022, deals with questions of intergenerational and intragenerational equity, a major issue in discussions on sustainability and long-term economic policies.

These publications demonstrate CEPS' influence in a wide range of research fields, and underline the international scope of its work. They also illustrate the laboratory's ability to combine fundamental and applied research, in response to contemporary economic issues. The work of the Centre d'Économie de l'ENS Paris-Saclay helps to inform public and private decision-makers, while actively participating in public debate on societal issues.

Publications

Research

CEPS - Economics Laboratory

Resumption of studies

Media

The Centre d'Économie de l'ENS Paris-Saclay (CEPS) is distinguished by its commitment to addressing contemporary economic issues within a humanities and social sciences department (DER), combining theoretical, empirical and experimental approaches.
The laboratory relies on strong inter-institutional collaborations within the European area. Its scientific policy, organized around three axes, focuses on economic theory, public policy and macroeconomics.

Centre d'Economie de Paris-Saclay (CEPS)

Le Réseau normalien au service des carrières normaliennes

sabrina.titaud — Mon, 14 Oct 2024 07:01:51 +0000

The Normalien Network, an asset for normaliennes' careers vraoult Wed, 10/16/2024 - 23:20

Developed in collaboration with the alumni association, the Normalien Network builds bridges between generations of Normaliens throughout their careers. This dynamic network facilitates the exchange of advice and experience between learners and more experienced alumni, enabling them to better orient their careers. Published testimonials, such as that of Florence Robine, France's ambassador to Norway, illustrate success stories in a wide range of fields.

The Network offers a wide variety of events, from conferences on international relations, to afterworks such as the MultiENS Finance, to exclusive visits such as that to the French Rugby Federation. These privileged moments enable our students and alumni to share their projects and achievements, and to get to know each other better.

Thanks to an online directory and thematic groups (startups, public sector alumni) or geographical groups (USA, Germany, Switzerland), members can easily connect and exchange around common interests.

Internships, theses and jobs are advertised by recruiters (alumni and partners), and students actively seeking employment can post their CVs in the candidate space. In this way, the platform reveals career opportunities, making visible a wide range of positions and assignments in a variety of sectors.

Alumni offer their expertise to support younger students at every stage of their careers, providing them with tailor-made advice in the mentoring area. The Réseau normalien extends far beyond France's borders. Members gain access to international opportunities by connecting with alumni living abroad, a valuable asset for organizing an ARPE mobility or exploring international career opportunities.

To take advantage of these many services, all you have to do is register on the Normalien Network, which is open to all Normaliens, whether students or graduates.

Without connexion, only events and news can be consulted. Other services require the creation of an account.

alumni [at] ens-paris-saclay.fr (Direction relations extérieures, alumni et mécénat)

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Primarily intended for students and alumni of the ENS Paris-Saclay, the Réseau Normalien is also accessible to teachers, researchers and support staff, as well as partner institutions and companies. The network offers a wide range of services, including a directory of the 112 graduating classes, access to internships, theses and jobs, geographical groups and groups by teaching and research department, events and more. It already boasts over 3,000 members.

The Normalien Network

Alumni testimonials

Des vagues océaniques plus grandes que jamais : une nouvelle étude bouleverse les connaissances sur la formation des vagues

sylvie.kemenovic — Wed, 18 Sep 2024 16:03:02 +0000

Ocean Waves Larger Than Ever: A New Study Shakes Up Our Understanding of Wave Formation sylvie.kemenovic Wed, 09/18/2024 - 18:19

When waves reach a certain steepness, they break. This process, crucial for weather forecasting, climate modeling, and the design of offshore structures, is still not fully understood. Until recently, most studies assumed that waves were two-dimensional to simplify theoretical and computational models. However, in the real ocean, waves often propagate in multiple directions, making them three-dimensional.

As Professor Frédéric Dias from ENS Paris-Saclay and University College Dublin explains, "Whether we like it or not, ocean waves are more often three-dimensional than two-dimensional. In 3D, there are more ways in which waves can break."

This new experimental study, led by Dr. Mark McAllister (University of Oxford) and Professor Ton van den Bremer (University of Oxford and TU Delft), investigates the impact of "directional spreading" – waves moving in multiple directions – on wave breaking. The international research team, including members from the University of Manchester, University of Edinburgh, and ENS Paris-Saclay, demonstrated that three-dimensional waves can far exceed the theoretical breaking limits set for two-dimensional waves.

A Game-Changing Discovery

The results show that waves with directional spreading can become four times larger than previously thought possible. "We demonstrate that in these conditions, waves can greatly surpass the commonly assumed upper limit before they break," says Sam Draycott, Senior Lecturer in Ocean Engineering at the University of Manchester. Once a traditional wave breaks, it forms a whitecap, signaling the end of its growth. However, three-dimensional waves keep growing even after breaking.

This discovery could have significant implications for the design of offshore structures such as wind turbines. "The three-dimensionality of waves is often overlooked in the design of offshore turbines and other structures," says Mark McAllister. "Our findings suggest that this could lead to designs that are less reliable."
A Unique Lab for Groundbreaking Experiments

These experiments were made possible thanks to the FloWave circular wave basin, a unique facility at the University of Edinburgh that can generate waves from multiple directions. "Recreating the complexity of real-world sea states on a laboratory scale is central to FloWave’s mission," says Dr. Thomas Davey, Principal Experimental Officer at FloWave. "This study takes these capabilities to a new level by isolating specific wave-breaking behaviors."

The development of new three-dimensional measurement methods was key to these breakthroughs. Using an innovative array of sensors, the researchers were able to measure wave heights with unprecedented spatial resolution, providing a much more detailed understanding of these complex phenomena.

This research opens the door to further studies on the dynamics of three-dimensional waves and could profoundly change our understanding of ocean physics, particularly in the context of climate change and the growing need for sustainable marine infrastructure.

frederic.dias [at] ens-paris-saclay.fr (Frederic Dias)

Publications

Research

Centre Borelli (Mathemarics/IA Laboratory)

Research published in Nature reveals that three-dimensional ocean waves can become twice as steep as two-dimensional waves before breaking. Even more surprisingly, these waves continue to grow after breaking, a phenomenon never observed before in wave studies.

Communiqué de presse

Back to school for internationals

sylvie.kemenovic — Thu, 25 Jul 2024 11:47:40 +0000

Back to school for internationals sylvie.kemenovic Thu, 07/25/2024 - 13:47

Calendar

Tuesday 3rd September

From 12.30pm to 2pm: Welcome for new international students - Hall Emmy Noether

Thursday 5 September

From 11.30am to 2.30pm and from 4pm to 7pm: Arrival Days at the University of Paris-Saclay - Information stands for international students
Consult the Universitat Paris-Saclay's website.

Thursday 26th September

- From 7pm: Welcome Party

ri [at] ens-paris-saclay.fr (Relations internationales)

Tuesday 3rd September 2024, from 12.30pm to 2pm, welcome for new international students (Hall Emmy Noether).

Bonnes vacances d'été !

sylvie.kemenovic — Thu, 25 Jul 2024 11:35:50 +0000

Happy summer holidays! sylvie.kemenovic Thu, 07/25/2024 - 13:43

Summer closure

From 26 July to 19 August in the morning
ENS Paris-Saclay will be closed from the evening of Friday 26 July 2024 to the morning of Monday 19 August for the summer holidays.
- The concierge service will be definitively closed at the beginning of the school year.
- The CentraleSupélec reprographics department will be closed from Monday 22 July to Friday 23 August 2024.

Back-to-school calendar

Find out the main dates for the start of the 2024/2025 academic year, events for students and holidays.

All the dates for the start of the 2024/2025 academic year.

Reception for the families of first-time normaliens

This year, the École normale supérieure is organising a reception for the families of incoming students on Friday 30 August 2024.

Find out more about the programme.

Photo credit: Michel Denancé (RPWB)

secretariat.presidence [at] ens-paris-saclay.fr (La Présidence)

École

Student

Academic

ENS Paris-Saclay will be closed from the evening of Friday 26 July 2024 to the morning of Monday 19 August 2024.

We wish you a very happy summer holiday!