salinity and flooding are as two very important factors of soil degradation. they often occur together and cancause severe damage to plants. however, plant response to environmental stresses may vary with growth stage atwhich exposure occurs. a pot study was conducted in 2005-2006 in northern aq qala (northern iran) to studycombine effects of waterlogging and soil salinity at different growth s...

BACKGROUND Sickness absence increases with lower socioeconomic status. However, it is not well known how this relation depends on specific aspects of sickness absence or the degree to which socioeconomic differences in sickness absence may be explained by other factors.The purpose of the study was to examine differences in sickness absence among occupational groups in a large general hospital; ...

Paroxysmal nonepileptic spells are often difficult to diagnose in pediatric patients owing to overlapping clinical features with epileptic seizures. A diagnosis of epilepsy is typically associated with pharmacologic and social sequelae, and an incorrect diagnosis can create an unnecessary burden highlighting the need for proper identification of paroxysmal nonepileptic spells. The adolescent po...

This paper uses panel and retrospective life history data from an important new data source the British Household Panel Survey to establish some stylised facts about the unemployment experiences of men. In particular we investigate the proportion of the sample who suffer from repeated unemployment spells, the origin and destination states of unemployment spells, some reasons for entering unempl...