A5024900613- Remote Sensing and LiDAR Applications
- Forest ecology and management
- Photochromic and Fluorescence Chemistry
- Advanced Fluorescence Microscopy Techniques
- Photoreceptor and optogenetics research
- Various Chemistry Research Topics
- Remote Sensing in Agriculture
- Leaf Properties and Growth Measurement
- History and advancements in chemistry
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Fire effects on ecosystems
- Advanced Biosensing Techniques and Applications
- Optical Coherence Tomography Applications
- Digital Holography and Microscopy
- Nanoplatforms for cancer theranostics
- Wildlife Ecology and Conservation
- Spectroscopy and Quantum Chemical Studies
- Advanced Chemical Physics Studies
- Click Chemistry and Applications
- Photoacoustic and Ultrasonic Imaging
- Advanced Chemical Sensor Technologies
- bioluminescence and chemiluminescence research
- Advanced Thermodynamics and Statistical Mechanics
Centre National de la Recherche Scientifique
2020-2024
Processus d'Activation Sélective par Transfert d'Énergie Uni-électronique ou Radiatif
2022-2024
Laboratoire des Sciences du Climat et de l'Environnement
2023-2024
CEA Paris-Saclay
2024
Université Paris-Saclay
2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2024
Université de Versailles Saint-Quentin-en-Yvelines
2024
Université Paris Sciences et Lettres
2018-2022
École Normale Supérieure - PSL
2020-2022
Sorbonne Université
2018-2022
Due to its sensitivity and versatility, fluorescence is widely used detect specifically labeled biomolecules. However, currently limited by label discrimination, which suffers from the broad full width of absorption/emission bands narrow lifetime distribution bright fluorophores. We overcome this limitation introducing extra kinetic dimensions through illuminations reversibly photoswitchable fluorophores (RSFs) at different light intensities. In expanded space, each RSF characterized a...
Abstract. The development of high-resolution mapping models for forest attributes based on remote sensing data combined with machine or deep learning techniques has become a prominent topic in the field observation and monitoring. This resulted availability multiple, sometimes conflicting, sources information, but, at face value, it also makes possible to learn about attribute uncertainty through joint interpretation multiple models. article seeks endorse latter by utilizing Bayesian model...
European forests are increasingly vulnerable to climate change, with mortality rates rising across major tree species. Using data from the French National Forest Inventory (NFI), we examined trends between 2014 and 2023 for over 600,000 trees spanning 52 species zones. Mortality significantly increased, particularly in northeastern France matching spatial patterns of warming temperatures declining precipitation. Employing explainable machine learning, identified forest demography (e.g.,...
Abstract. The development of high-resolution mapping models for forest attributes based on remote sensing data combined with machine or deep learning techniques, has become a prominent topic in the field observation and monitoring. This resulted an extensive availability multiple sources information, which can either lead to potential confusion, possibility learn both about through joint interpretation models. article seeks endorse latter, by relying Bayesian model averaging (BMA) approach,...
Introduction: The knowledge about forest growth, influenced by factors such as tree species, age, and environmental conditions, is a key for future preservation. Height age data can be combined to describe growth used infer known effects. Methods: In this study, we built 14 height curves stands composed of monospecific or mixed species using ground measurements satellite data. We random model from area disturbance, 125 parameters (climate, altitude, soil composition, geology, stand...
We introduce HIGHLIGHT as a simple and general strategy to selectively image reversibly photoactivatable fluorescent label associated with given kinetics. The is submitted sine-wave illumination of large amplitude, which generates oscillations its concentration fluorescence at higher harmonic frequencies. For singularizing label, uses specific frequencies mean light intensities resonances the amplitudes Several non-redundant resonant observables are simultaneously retrieved from single...
Classical approximations in chemical kinetics, the quasi-steady-state approximation (QSSA) and partial-equilibrium (PEA), are used to reduce rate equations for concentrations extents of reaction steps, respectively. We make precise two conditions on constants necessary sufficient eliminate a well-chosen variable vicinity steady state. The first condition expresses that dynamics admits small characteristic time associated with fast variable. second ensures is concentration QSSA an extent PEA....
The understanding of forest growth is crucial for the preservation forests in future. Factors such as tree species, age, management and environmental conditions influence this growth.Tree height age data can be combined to describe infer known effects. In study, we constructed height-age curves 14 monospecific mixed-species stands using ground measurements satellite northern France. A random model was species area disturbance, 125 parameters (climate, altitude, soil composition, geology,...
Estimating canopy height and its changes at meter resolution from satellite imagery is a significant challenge in computer vision with critical environmental applications. However, the lack of open-access datasets this hinders reproducibility evaluation models. We introduce Open-Canopy, first open-access, country-scale benchmark for very high-resolution (1.5 m) estimation, covering over 87,000 km$^2$ across France 1.5 m aerial LiDAR data. Additionally, we present Open-Canopy-$\Delta$, change...
Fluorescence has become a ubiquitous observable in biology. Yet it encounters limitations, which may originate from optical interferences such as ambient light, autofluorescence, and spectrally interfering fluorophores. In this review, we first report on dynamic contrast can overcome these limitations. Then specifically describe out-of-phase imaging after modulation, proved relevant for multiplexed fluorescence even under adverse conditions with several setups.
Forced light oscillations are used to titrate any targeted species using its specific kinetics and choosing adapted control parameter values.
The Cover Feature shows the principle of HIGHLIGHT, a simple and general strategy to selectively image reversibly photoactivatable fluorescent label associated with given kinetics. HIGHLIGHT uses specific frequencies mean light intensities (I1, I2) resonances amplitudes concentration or fluorescence oscillations at harmonic generate set non-redundant resonant observables (S) that are recovered simultaneously from single experiment. More information can be found in Research Article by Annie...
Starting from simple examples of chemical schemes for which a concentration or an extent reaction can be eliminated, we highlight the common features quasi-steady-state approximation and partial-equilibrium approximation. General conditions to apply either these adiabatic eliminations are mentioned.
Starting from simple examples of chemical schemes for which a concentration or an extent reaction can be eliminated, we highlight the common features quasi-steady-state approximation and partial-equilibrium approximation. General conditions to apply either these adiabatic eliminations are mentioned.<br>