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The comparative biology of the solitary endoparasitoid Meteorus gyrator (Thun.) was investigated in five noctuid pest species. Meteorus gyrator parasitized all larval stages of the noctuid pests Lacanobia oleracea, Mamestra brassicae, Spodoptera exigua ...
Fiona SMETHURST +3 more
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Nonlinear dynamics of sand banks and sand waves [PDF]
Sand banks and sand waves are two types of sand structures that are commonly observed on an off-shore sea bed. We describe the formation of these features using the equations of the fluid motion coupled with the mass conservation law for the sediment ...
Newell, Alan C., Komarova, Natalia L.
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IMPACT OF DIFFERENT DESIGNS OF SHELTERBELT ON THE CONTROL OF SHIFTING SAND AT TOSHKA, SOUTH EGYPT. [PDF]
In Toshka, south of Egypt, the extremely arid conditions reflect vast areas covered by the aeolian deposits. To control the shifting sand along El-Sheikh- Zayed canal, which convey water to the newly reclaimed land, an experimental pilot area was ...
A. Zaghloul, M. Draz
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Protein hydrolysates produced by hydrochloric acid hydrolysis were analysed for 3-chloropropane-1,2-diol and its enantiomers. It was found that (R)-3-chloropropane-1,2-diol and (S)-3-chloropropane-1,2-diol were present in the hydrolysates in equimolar ...
J. Velíšek +3 more
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Preliminary Screening of Potential Control Products against Drosophila suzukii
The first recording of Drosophila suzukii in the UK occurred in the south of England during August 2012. Since then sticky traps have continued to record the presence of individuals.
Andrew G. S. Cuthbertson +4 more
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Regeneration of sand waves after dredging [PDF]
Sand waves are large bed waves on the seabed, being a few metres high and lying hundreds of metres apart. In some cases, these sand waves occur in navigation channels.
Knaapen, M.A.F. +5 more
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Linear instability mechanisms for sand wave formation [PDF]
A height- and flow-dependent model for turbulent viscosity is employed to explain the generation of sand waves in tidal seas. This new model resolves the problem of excitation of very long waves in sand wave formation, because it leads to damping of the ...
Hulscher, Suzanne J. M. H. +2 more
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"Booming" sand dunes are able to produce low-frequency sound that resembles a pure note from a music instrument. The sound has a dominant audible frequency (70-105 Hz) and several higher harmonics and may be heard from far distances away.
Vriend, Nathalie Maria
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Further Screening of Entomopathogenic Fungi and Nematodes as Control Agents for Drosophila suzukii
Drosophila suzukii populations remain low in the UK. To date, there have been no reports of widespread damage. Previous research demonstrated that various species of entomopathogenic fungi and nematodes could potentially suppress D.
Andrew G. S. Cuthbertson, Neil Audsley
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High-resolution inelastic X-ray scattering is an established technique in the synchrotron community, used to investigate collective low-frequency responses of materials.
A. Descamps +17 more
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