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Noether symmetries and conservation laws of wave equation on static spherically symmetric spacetimes with higher symmetries
(
Elsevier
, 2014 , Article)
In Bokhari et al. (2011), the Noether symmetries of the wave equation on a general spherically symmetric spacetime metric were provided in terms of five functions of the variables t and r subject to certain differential ...
Zooplankton abundance and community structure driven by tidal currents in a Mediterranean coastal lagoon (Boughrara, Tunisia, SW Mediterranean Sea)
(
Academic Press
, 2021 , Article)
Lagoons and coastal marine zones are very productive and useful ecosystems, but they are threatened by the effects of global change and anthropogenic pressures. These effects have a negative impact on the zooplankton, ...
Unfolding jellyfish bloom dynamics along the mediterranean basin by transnational citizen science initiatives
(
MDPI AG
, 2021 , Article)
Science is addressing global societal challenges, and due to limitations in research financing, scientists are turning to the public at large to jointly tackle specific environmental issues. Citizens are therefore increasingly ...
Population dynamics and predatory impact of the alien jellyfish Aurelia solida (Cnidaria, Scyphozoa) in the Bizerte Lagoon (southwestern Mediterranean Sea)
(
Hellenic Centre for Marine Research
, 2020 , Article)
Understanding the life cycle strategies and predatory impact of alien jellyfish species is critical to mitigate the impact that these organisms may have on local populations, biodiversity, and ultimately on the functioning ...
Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea in relation to long-term hydrographic variability
(
Academic Press
, 2020 , Article)
Structural changes in plankton primary producers have large implications for food web dynamics, energy fluxes and the vertical export of biogenic particulate carbon. Here we examine phytoplankton data spanning the period ...
A computational model for suspensions of motile micro-organisms in the flow of ferrofluid
(
Elsevier
, 2020 , Article)
The performance of friction drag, heat transfer rate, and mass transfer is illustrated the in boundary layer flow region via density of motile microorganisms. Magnetic dipole in presence of Curie temperature and density ...
Nanofluid in tilted cavity with partially heated walls
(
Elsevier
, 2014 , Article)
Lattice Boltzmann Method is applied to investigate the natural convection flow utilizing nanofluids in square enclosure with partially heated walls. The fluid in the cavity is a water-based nanofluid containing different ...
An alternative proof of Lie’s linearization theorem using a new λ-symmetry criterion
(
Elsevier
, 2015 , Article)
An alternative proof of Lie’s approach for the linearization of scalar second-order ordinary differential equations is derived by using the relationship between λ-symmetries and first integrals. This relation further leads ...
Ferromagnetic effects for nanofluid venture through composite permeable stenosed arteries with different nanosize particles
(
American Institute of Physics
, 2015 , Article)
In the present article ferromagnetic field effects for copper nanoparticles for blood flow through composite permeable stenosed arteries is discussed. The copper nanoparticles for the blood flow with water as base fluid ...
A novel index based on planktonic copepod reproductive traits as a tool for marine ecotoxicology studies
(
Elsevier B.V.
, 2020 , Article)
Copepods are excellent bioindicators of climate change and ecosystem pollution in anthropized coastal waters. This work reviewed the results of previous studies examining changes in egg production rate (EPR), hatching ...