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Socio-Demographic Factors Associated with Psychoactive Substance Use among Commercial Motorcycle Operators in Kano, Nigeria
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作者 Mustapha Ibrahim Gudaji Zahraddeen Garba Habib 《Open Journal of Psychiatry》 2016年第1期76-85,共10页
Background: Psychoactive substance use was common among commercial motorcycle operators. Studies had shown that there were some socio-demographic factors which were commoner among commercial motorcycle operators ... Background: Psychoactive substance use was common among commercial motorcycle operators. Studies had shown that there were some socio-demographic factors which were commoner among commercial motorcycle operators who used psychoactive substances. However, this was not explored among commercial motorcycle operators in Kano, North Western Nigeria. Aim: The aim of the study was to determine the socio-demographic factors associated with psychoactive substance use among motorcycle operators in Kano, Northwestern Nigeria. Methods: It was a cross-sectional study. Instrument used for data collection included socio-demographic questionnaire and World Health Organisation Student Drug Use Questionnaire. Data analysis was done using Statistical Package for Social Sciences (SPSS) 16th edition. Results: Commercial motorcycle operators who used substances were found to be of younger age group (X<sup>2</sup> = 10.9, P < 0.001), single (X<sup>2</sup> = 4.3, P = 0.034) and had a father who used tobacco (X<sup>2</sup> = 4.28, P = 0.04). Participants who were single were more likely to use inhalants (X<sup>2</sup> = 21.06, P =0.001), opiates (X<sup>2</sup> = 11.82, P = 0.012), cannabis (X<sup>2</sup> = 5.12, P = 0.028) and stimulants (X<sup>2</sup> = 5.12, P = 0.028) compared to those who were married. Conclusion: This study found that being of younger age, being single, and having a father who smoked were significantly associated with psychoactive substance use. Participants who were singles were more likely to use inhalants, opiates, cannabis and stimulants. No relationship was observed between the age of the respondents and specific substance use. Legislations should be enacted to reduce the rate of psychoactive substance use among motorcycle operators and general population at large. 展开更多
关键词 psycho-active Substance Sociodemographic Factors Motorcycle Operators SDUQ NIGERIA
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哌嗪类新精神活性物质BZP及TFMPP拉曼光谱特性研究
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作者 吴国萍 胡辰辰 +1 位作者 陆腾 吴元钊 《分析试验室》 EI CAS CSCD 北大核心 2023年第10期1364-1372,共9页
运用密度泛函理论(DFT)优化哌嗪类新精神活性物质1-苄基哌嗪(BZP)和1-(3-三氟甲基苯基)哌嗪(TFMPP)的几何构型,结合实验测得的拉曼谱图对标准品拉曼谱图的振动模式进行指认和归属,并与低浓度样品的表面增强拉曼(SERS)谱图进行比较;使用... 运用密度泛函理论(DFT)优化哌嗪类新精神活性物质1-苄基哌嗪(BZP)和1-(3-三氟甲基苯基)哌嗪(TFMPP)的几何构型,结合实验测得的拉曼谱图对标准品拉曼谱图的振动模式进行指认和归属,并与低浓度样品的表面增强拉曼(SERS)谱图进行比较;使用自制纳米金、NaCl溶液为助剂,优化BZP和TFMPP的SERS检测条件。在最优条件下,BZP和TFMPP的检出限分别为10 ng/mL和1μg/mL;重复性实验中2种样品的主要特征峰强度相对标准偏差(RSD)分别4.5%~14%和4.0%~16%。运用基于Matlab自行开发的设计分子光谱数据分析系统的BP神经网络模块,对模拟未知样品进行预测,30份BZP样品和26份TFMPP样品的预测值与真实值比值的平均值(AVG)分别为1.21和0.99,RSD分别为22%和14%。本文可为BZP和TFMPP的拉曼检测提供理论依据和快检方法。 展开更多
关键词 密度泛函理论 表面增强拉曼光谱 BP神经网络 哌嗪类新精神活性物质
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阅读理解中的心理语言活动──从语篇角度分析 被引量:11
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作者 林六辰 《解放军外国语学院学报》 2000年第4期68-71,共4页
从语篇的基本特征,即语篇给读者所留下的空白这一阅读过程中的基础出发,论述读者在阅读时为达到理解之目的所运用的整合与推理策略及手段。在此基础上,进一步介绍一些新的阅读理论,诸如知识模块理论、自下而上和自上而下以及相互作... 从语篇的基本特征,即语篇给读者所留下的空白这一阅读过程中的基础出发,论述读者在阅读时为达到理解之目的所运用的整合与推理策略及手段。在此基础上,进一步介绍一些新的阅读理论,诸如知识模块理论、自下而上和自上而下以及相互作用阅读模式及理论等,并借助这些理论,试图分析和描述阅读过程中心理语言活动的客观存在。最后得出以下两点启示:在阅读理解中,我们必须始终使学生首先认识语篇在衔接和连贯方面给读者所留下的空白这一语篇的基本特征,进而熟练掌握和运用填补语篇空白所必需的整合和推理两大阅读基本技能。 展开更多
关键词 心理语言活动 知识模块理论 整合 推理
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