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1.
  • Aurelle, D., et al. (författare)
  • Biodiversity, climate change, and adaptation in the Mediterranean
  • 2022
  • Ingår i: Ecosphere. - : Wiley. - 2150-8925. ; 13:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Potential for, and limits to, adaptation to environmental changes are critical for resilience and risk mitigation. The Mediterranean basin is a mosaic of biodiversity-rich ecosystems long affected by human influence, whose resilience is now questioned by climate change. After reviewing the different components of biological adaptation, we present the main characteristics of marine and terrestrial biodiversity in the Mediterranean basin and of the pressures they face. Taking climatic trends into consideration, we discuss the adaptive potential of a range of ecosystems dominated by species without active dispersal. We argue that the high heterogeneity of Mediterranean landscapes and seascapes constitutes a laboratory for the study of adaptation when environmental conditions change rapidly and may provide opportunities for adaptation and adaptability of species and ecosystems. Adaptive management in the Mediterranean can and should harness the nature-based solutions offered by both ecological and evolutionary processes for increasing the resilience of ecosystems to climate change.
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3.
  • Madami, Marco, et al. (författare)
  • Direct observation of a propagating spin wave induced by spin-transfer torque
  • 2011
  • Ingår i: Nature Nanotechnology. ; 6:10, s. 635-638
  • Tidskriftsartikel (refereegranskat)abstract
    • Spin torque oscillators with nanoscale electrical contacts1, 2, 3, 4 are able to produce coherent spin waves in extended magnetic films, and offer an attractive combination of electrical and magnetic field control, broadband operation5, 6, fast spin-wave frequency modulation7, 8, 9, and the possibility of synchronizing multiple spin-wave injection sites10, 11. However, many potential applications rely on propagating (as opposed to localized) spin waves, and direct evidence for propagation has been lacking. Here, we directly observe a propagating spin wave launched from a spin torque oscillator with a nanoscale electrical contact into an extended Permalloy (nickel iron) film through the spin transfer torque effect. The data, obtained by wave-vector-resolved micro-focused Brillouin light scattering, show that spin waves with tunable frequencies can propagate for several micrometres. Micromagnetic simulations provide the theoretical support to quantitatively reproduce the results.
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  • Resultat 1-4 av 4

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