Publications

2025

• Nutritional and growth enhancement of alfalfa sprouts through cold plasma and UV seed treatments
  
  • Benabderrahim Mohamed Ali
  • Hannachi Hédia
  • Elfalleh Walid
  • Dufour Thierry
  Italian Journal of Food Science, Codon Publications, 2025, 37 (3), pp.160-173. Employing eco-friendly techniques like cold plasma (CP) and ultraviolet (UV) radiation provides innovative approaches to enhance the sprout quality and productivity of alfalfa. This study explores the effects of CP and UV radiation on the germination, growth, and phytochemical profiles of alfalfa sprouts. CP significantly accelerated germination time, reducing median germination time by 8 hours compared to the control, and enhanced photosynthetic pigments, leading to higher biomass (25.87 mg/sprout fresh weight and 1.45 mg/sprout dry weight). UV treatments, particularly UV-C, increased chlorophyll and total flavonoid content. Overall, CP effectively promotes alfalfa germination and growth, while UV treatments improve specific phytochemicals. (10.15586/ijfs.v37i3.2982)
  DOI : 10.15586/ijfs.v37i3.2982
• The Solar Orbiter merged magnetic field
  
  • Kretzschmar M.
  • Brochot J.-Y.
  • Horbury T. S.
  • Rackovic K.
  • Maksimovic M.
  • Alexandrova O.
  • Bonnin X.
  • Jannet G.
  • O’brien H.
  • Crabtree A.
  • Morris J.
  • Krasnoselskikh Vladimir
  • Dudok de Wit Thierry
  • Le Contel O.
  • Chust T.
  • de Gelis P.-M.
  • da Silva Gonçalves L.
  • Fauchon-Jones E.
  Astronomy & Astrophysics - A&A, EDP Sciences, 2025, 699, pp.A236. Context. In situ studies of the solar wind require precise magnetic field measurements at all frequencies. The Solar Orbiter mission carries two magnetometers to measure the solar wind magnetic field: the fluxgate magnetometer (MAG), which is best suited for frequencies from DC to a few Hertz, and the search coil magnetometer (SCM), which is best suited for frequencies above a few Hertz. Aims: The aim of this paper is to produce a merged magnetic field data product that takes the best of both instruments and provides the community with high quality, easy to use magnetic field data over a wide range of frequencies. Methods: We first compared the two instruments in their overlapping frequency range, then we performed the merging in Fourier space using a weighted function determined by the sensitivity of the two sensors. Results: The two instruments are found to give consistent results in their overlapping frequency range. SCM has a lower gain than MAG by 14% around 1 Hz and MAG is delayed by about 20 ms with respect to SCM, and the merged magnetic field takes care of these discrepancies. It is basically identical to MAG data below 2 Hz and to SCM data above about 15 Hz (with amplitude increased by 14%). We show that the merged magnetic field is suitable to analyse waves and turbulence over a broad frequency range, in particular by confirming that ion cyclotron waves can lower the level of energy at the sub ionic scales. The merged magnetic field is distributed as daily files containing the magnetic field at either 256 or 4096 Hz, and either in the radial-tangential-normal co-ordinates or in the spacecraft reference frame co-ordinates. (10.1051/0004-6361/202554731)
  DOI : 10.1051/0004-6361/202554731