Evolution of languages has always been of interest to linguists.  In this paper we study  the natural progress of the syllable structure from Old  Persian  (O.P)  to Middle Persian (Mi.P) and up to the Modern Persian (Mo.P). For this purpose all the words containing consonant sequences are collected from specific sources of each  of these  languages,  and then  analysed  according to the syllab...

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Organophosphates (OP) are widely used as insecticides. Accidental OP poisoning is reported world over. These compounds inhibit the enzyme acetyl-cholinesterase within the peripheral and central nervous system by phosphorylation of its esteratic site. The resultant accumulation of acetylcholine at the cholinergic receptor sites, leads to signs of cholinergic toxicity. Accidental OP sites, leads ...

BACKGROUND The study of the influence of life course occupational position (OP) on health in old age demands analysis of time patterns in both OP and health. We study associations between life course time patterns of OP and decline in grip strength in old age. METHODS We analyze 5 waves from the Survey of Health Ageing and Retirement in Europe (n = 5108, ages 65-90). We use a pattern-mixture ...