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The use of tris(2,2'-bipyridyl) ruthenium (III) as a chemiluminescent spray reagent spot-test for heroin is discussed. Two forms of the reagent are investigated an aqueous and an anhydrous where both were found to give vastly different results. The aqueous reagent giving slow, low intensity chemiluminescence whilst the anhydrous reagent gave a fast, bright response in the presence of 3,6-diacetylmorphine. The anhydrous reagent is less sensitive the slow, intensity response is characteristic of only two opiates tested 3,6-diacetylmorphine and 3-monoacetylmorphine. 相似文献
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Patterns of alcohol use of 181 maritally violent and maritally nonviolent men and their female partners differed on subscales of the Quantity-Frequency Index. Two abuser groups (43 uncounseled and 46 counseled) drank significantly greater amounts and for different psychological reasons than two nonabuser groups (50 satisfactorily married and 42 discordant). However, group frequency rates did not vary. The abuser groups had experienced and observed significantly more violence during childhood than the nonabuser groups; further, they reported significantly more current life stress. The female partners of the abusers did not differ in global alcohol use; however, they drank substantially more than their counterparts. They were especially prone to drink in response to battering. About one fourth of the abusers and one fifth of their wives drank frequently during abusive episodes. Stressors and depressors most likely precipitated both drinking and battering, with strain, hostility, and alcohol myopia (altered perception) serving as intervening variables. Results clarify contradictory reports concerning the role of alcohol in family violence. 相似文献
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Tony Barnett 《公共行政管理与发展》1984,4(1):21-47
This paper identifies from studies made of specific schemes the major social and administrative problems confronting the improvement and extension of small-scale irrigation in Africa. The first section reviews the studies and notes the conclusions to be drawn from each separate one. Underlying these separate conclusions six general problems are identified and in the second section of the article each of these six is elaborated and discussed: the relation between the direct producer'S benefit and wider social benefits: problems of control, commitment to hierarchy, the working of production units, and how to learn from farmers in respect of water use; and finally the general problem of how to plan for the further change that follows after irrigation is introduced. 相似文献
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This research investigated hypothesized differences on the Buss-Durkee Hostility Inventory between five groups of men who varied in terms of being violent toward female cohabitants, nonfamily members, or no one, and in terms of marital satisfaction. Other measures, such as stress and childhood abuse data, were employed to interpret the findings. A two-way MANCOVA (group by race) with six sociodemographic covariates revealed significant differences on three Hostility Inventory subscales. The maritally violent men had significantly higher total Hostility than any of the other groups and were significantly discriminable from the other groups. Nonetheless, the beliefs and behaviors of violence-prone individuals overlap to some degree. A cognitive-behavioral model with stimulus variables of life Stressors, intervening variables of hostility and negative stress reactions, and response variables of different forms of aggression served as a framework for interpreting the results. 相似文献