The proposed system of models allows to simulate the average flow of goods (Q) and vehicles (VC) by road using generation (for export flows), attraction (for import flows), distribution and vehicle loading models.
In male spikes of P. strobilacea, there is probably a temporal decoupling of pollinator attraction and pollen export.
In theory, trade liberalisation - the reduction in barriers to trade - can improve economic growth through increased export opportunities to overseas markets, attraction of foreign investment into countries and lower cost imported goods [ 7].
The temporal decoupling of pollinator attraction and pollen export in male flowers might be explained if the thrips are attracted to the inflorescences in the M1 stage, and multiply sufficiently rapidly that offspring then carry the pollen from M2-stage inflorescences to female flowers.
Subsidy in Britain was the means by which the British theatre industry became the strongest in the world, both as a significant export and as a chief tourist attraction.
If you don't know the area, here are a couple of pointers: its last export was Peter Mandelson and its main attraction is an old aerodrome.
The aim of the Thai central bank's new controls was to ease exporters' discomfort and preserve the country's attractions to export-oriented industries.
A high oil price, and the Kremlin's willingness to wiggle round the production restraints agreed with the Organisation of the Petroleum Exporting Countries (OPEC), add to the attraction.
Thirty five artists from Harbin even flew in to build Jerusalem's ice city, which is the latest of Harbin's exports to pop up as a temporary tourist attraction.
Attraction and generation models are specified within the commodity level; they allow us to estimate the freight attracted (import) and generated (export) by each traffic zone from (import) and to (export) foreign countries.
Therefore, the M2 stage is probably the main period of pollen export, and there is probably a temporal decoupling of pollinator attraction and pollen export in male flowers of Platycarya.
