This loss of mt-tRNAs not only necessitates the import of nuclear-encoded tRNAs into mitochondria but also removes some evolutionary constraints on proteins formerly associated with mt-tRNAs.
Further, a catastrophic harvest necessitated grain imports of around 1.6 million metric tons.
The past couple of years have seen an increase in diseases borne by mosquitoes, widely occurring natural fires that destroy rangeland and alternating heavy droughts and floods necessitating maize imports.
It will also impose costly refinery modifications and require and necessitate increased importing of higher quality, non-California crude oil feedstock.
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Financial difficulties in 1987 and 1988 made it difficult to pay the scheduled export subsidies and necessitated an increase in import duties.
This has resulted in a high incidence of malnutrition and deplorable socio-economic conditions for large segments of the population which has necessitated increased food imports and aid, to bridge the gap between food production and population growth, and its attendant adverse effects.
Such a process entails rapid transport of importin:r-protein complexes into the nucleus, and necessitates an efficient mechanism to dissociate these complexes to terminate the import process.
Campaigners claim that should it go ahead, the incinerator at Lostock Gralam, near Northwich, will be one of Europe's largest and produce 60 tonnes of toxic waste each day, necessitating hundreds of extra lorry journeys and the need to import waste from outside the county in order for it to be viable.
The absence of a complete TCA cycle necessitates an external requirement for dicarboxylic acids, which could be imported by the two dicarboxylic acid transporters found in each genome.
Consequently the risk of PV-import to Germany from endemic countries is present, and necessitates maintenance of an immune population until polio is eradicated globally.
