منابع مشابه
Byssinosis in the cotton industry of Egypt.
An epidemiological investigation in 11 ginneries representing the ginning industry in Egypt demonstrated the existence of byssinosis among 38 4% of the workers. Studies of two pressing plants and two card-rooms in Alexandria showed a prevalence of byssinosis of 52-6% and 266% respectively. The ages of those exposed and the duration of exposure were considered in relation to the prevalence of by...
متن کاملThe Cotton Boom and Slavery in Nineteenth-Century Rural Egypt
The “staples thesis” argues that institutions in a given region could be explained by the nature of production of its prevailing staples, whereby slavery is likely to emerge in “slave-conducive” crops, such as cotton, rice, and sugarcane. This paper evaluates the thesis using a unique natural experiment from nineteenth-century rural Egypt, the cotton boom that occurred because of the American C...
متن کاملAssessing the Total Factor Productivity of Cotton Production in Egypt
The main objective of this paper is to decompose the productivity growth of Egyptian cotton production. We employ the stochastic frontier approach and decompose the changes in total factor productivity (CTFP) growth into four components: technical progress (TP), changes in scale component (CSC), changes in allocative efficiency (CAE), and changes in technical efficiency (CTE). Considering a sit...
متن کاملcomparative study of pain relieving effect of dry cotton pellet and eugenol cotton pellet in the reduction of pain in emergoney pulpotomy
چکیده ندارد.
15 صفحه اولSuccinic Acid Content of the Cotton Plant.
Although succinic acid is known to be widely distributed in plant tissues there is only a limited amount of quantitative data on its occurrence. Studies which have been made of the changes in concentration of succinic acid during development of the tobacco plant indicate that it is to be regarded as one of the more active metabolites (4). In a previous study of the organic acids of the cotton p...
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ژورنال
عنوان ژورنال: Nature
سال: 1913
ISSN: 0028-0836,1476-4687
DOI: 10.1038/090667b0