中国就业市场中的性别歧视——对公众认知率的研究

调查结果表明:女性更关注工作过程中的性别歧视和职业隔离的性别歧视现象,女性仅对应聘过程中的性别歧视现象如女性的相貌、身高等要求、外来打工妹的应聘两个问题的认知率高于男性;女性对性骚扰性别歧视认知率与男性没有显著差异;公众对各种性别歧视现象的总体认知水平不高.     

当代大学生媒介消费行为统计分析

当今世界信息传播革命正在兴起,信息技术的迅猛发展推动着大众传播媒介走向现代化。大众传播媒介的发展对大学生的影响尤为深刻。本文拟对当代大学生对大众传播媒介的使用状况作粗浅探索和分析,并试图研究互联网的使用与其它传播媒介的关系。     

医疗消费的经济学探讨

医疗消费是一个倍受大众关注的特殊的社会行为 ,关于如何正确认识与看待这一问题 ,理论界尚未展开更深入的研究。为此 ,从经济学的角度来探讨医疗消费这个关系到每个人切身利益的问题 ,并浅析公费医疗在市场经济条件下的不合理性 ,是十分必要的。     

关于人民币汇率问题的几点思考

人民币汇率不存在被严重低估的问题 ,升值没有客观必然性。目前人民币升值面临巨大压力 ,其主要原因在于我国不合理的外部均衡结构。人民币在未来也不会很快呈现出不断升值的变化趋势 ,中长期内的汇率变动趋势尚有待于观察 ,贬值压力同样不可低估。维持人民币汇率较长时期的稳定 ,延缓升值进程的发生 ,具有非常重要的战略意义     

大学生体育消费现状调查研究

体育消费是体育经济的一种具体表现形式 ,也是体育的社会价值的一种体现。通过对辽宁工程技术大学大部分学生体育消费和体育消费观的调查 ,说明有相当一部分学生已具备良好的体育意识 ,并有自觉的体育消费行为 ,但处于低消费阶段 ,同时对体育经济在高校的效益也有一定的认识。为体育经济和体育事业的发展提供了理论基础 ,也为高校学生更好、更合理地进行体育消费提供了理论依据     

The analysis of incomplete data using stochastic covariates

In the development of many diseases there are often associated random variables which continuously reflect the progress of a subject towards the final expression of the disease (failure). At any given time these processes, which we call stochastic covariates, may provide information about the current hazard and the remaining time to failure. Likewise, in situations when the specific times of key prior events are not known, such as the time of onset of an occult tumour or the time of infection with HIV-1, it may be possible to identify a stochastic covariate which reveals, indirectly, when the event of interest occurred. The analysis of carcinogenicity trials which involve occult tumours is usually based on the time of death or sacrifice and an indicator of tumour presence for each animal in the experiment. However, the size of an occult tumour observed at the endpoint represents data concerning tumour development which may convey additional information concerning both the tumour incidence rate and the rate of death to which tumour-bearing animals are subject. We develop a stochastic model for tumour growth and suggest different ways in which the effect of this growth on the hazard of failure might be modelled. Using a combined model for tumour growth and additive competing risks of death, we show that if this tumour size information is used, assumptions concerning tumour lethality, the context of observation or multiple sacrifice times are no longer necessary in order to estimate the tumour incidence rate. Parametric estimation based on the method of maximum likelihood is outlined and is applied to simulated data from the combined model. The results of this limited study confirm that use of the stochastic covariate tumour size results in more precise estimation of the incidence rate for occult tumours.     

隆线溞(Daphnia carinata king)的呼吸代谢测定

本文用Winkler法测定隆线溞(Caphnia carinata king)不同龄期个体的耗氧量及二幼龄个体在不同温度下的耗氧量。测得幼龄与成龄两阶段,其耗氧量分别以4.88×10~(-2)与1.695×10~(-1)的速率随体重增加而增大,耗氧率则分别随体重的增加而逐渐降低;在常温下,隆线溞耗氧量Y与温度X呈Y=3.69×10~(-3)×1.07~x的指数函数关系,由此得到,17℃—19℃是隆线搔生长速率快而耗氧量较小的最适人工培养温度。     

倡导勤俭自强的消费伦理观--关于合肥地区大学生问卷调查的思考

文章结合学习宣传和贯彻落实《公民道德建设实施纲要》,主要回答为什么必须重视大学生消费伦理观的新变化,大学生消费状况及消费伦理观有哪些新变化,以及正确引导大学生消费伦理观的现实意义。