杂交玉米高产制种技术研究

该项研究宗旨是探索雷州半岛杂交玉米高产制种的可行性及其配套制种技术．经过两年三造的试验研究,其主要经济技术指标达到预期效果．累计面积２６ ．９ 亩．组合为南试８４７ ,加权平均亩产量为２３７ ．１ ｋｇ,最高亩产３００．１ ｋｇ．根据研究结果,本项目初步总结出了南试８４７ 组合杂交制种配套技术,为指导玉米制种提供了理论依据和实践经验．     

Non-standard methods in evolutionary computation

The paper presents non-standard methods in evolutionary computation and discusses their applicability to various optimization problems. These methods maintain populations of individuals with nonlinear chromosomal structure and use genetic operators enhanced by the problem specific knowledge.     

A Decision Aid for midwifery continuity of care: Development and pilot acceptability testing

BackgroundMany maternity services in Australia offer women a variety of models of care including midwife led models. Childbearing women, however, need to understand the differences between these models if they are to make an informed decision about their choice of care. Decision Aids (DA) help people decide when there is not a single best option and the best decision will be based upon the values of the decision maker. There is no current tool that focuses on the choice of midwife led vs other models of maternity care.AimThis research aimed to develop, and pilot test a Decision Aid focusing on the choice between midwife led and standard models of maternity care.MethodsThe DA was developed using the International Patient Decision Aid Standards and pilot tested for acceptability with a group of clinicians who provide antenatal care in one jurisdiction in Australia. A posttest only study was conducted assessing knowledge, acceptability and decisional conflict, with a group of women of childbearing age living in the jurisdiction.FindingsA DA was developed and pilot acceptability testing with 14 women and 13 clinicians of Australian Capital Territory (ACT) health demonstrated its acceptability and highlighting areas for further development.DiscussionSome revisions may be needed to address issues of balance and bias toward midwife-led care identified by some recipients.ConclusionPilot acceptability testing with women and staff of ACT health provides a steppingstone to further research, development and evaluation of this DA.     

论中国文化产业的立法模式——以社会主义核心价值观为价值引导

自从2000年中共十五届五中全会正式提出“文化产业”概念以来，“发展文化产业”一直是中国共产党坚定不移的重要政策导向。当前，我国在文化产业领域共制定了5部法律，22部行政法规，500多部行政规章、地方性法规和地方政府规章，其内容主要体现为“管制性内容”，我国各级政府对于文化产业的“奖助性规定”，多体现在政策性文件之中，有必要转变为正式立法。“文化产业促进法”承载着社会主义核心价值观融入法治建设的重要任务，应该成为中国文化产业领域的“基本法”“奖助法”和“一般法”，以实现“文化产业立法的法典化、规范化”，“建立文化产业管理的部门协调机制”，“确立文化产业发展的行政奖助机制”。在立法技术上，“文化产业促进法”需要坚持“能细则细，宜粗则粗”的原则，先在“总则”部分明确规定促进文化产业发展的政策框架和法制框架，再通过配套的法规、规章中具体落实该法的实施措施、实施机制等内容。     

论量刑规范化应当缓行——以我国现行刑法立法模式为前提的研究

量刑规范化是我国为达成刑事司法公正,限制司法权力的重要举措。量刑规范化的努力,从价值追求上具有充分的合理性。我国量刑规范化以细化实体法规则作为基本方式,其优点是严格限制了司法裁量权,但其带来的副作用——相当范围的公正实现面临难以克服的困难也不容忽视。如何通过选择合理的规范化量刑方式以达到量刑公正,是一个重大且亟待解决的问题。因此本文提出量刑规范化应当缓行,慎重对待事关整体刑事司法公正实现程度的重大问题。     

Asthma and allergy as risk factors for suicidal behavior among young adults

An association between allergic disease, depression and suicidality has been reported. Objective: To explore the relationships between suicidality and asthma, allergy, internet addiction, stress, sleep quality, pain/discomfort, and depression, among emerging adults. Participants: 929 college students completed an online survey between October 2015 and April 2017. Methods: A cross-sectional study using multivariate analysis techniques was implemented. Results: Using structural equation modeling, we found that allergies and stress were directly related to pain/discomfort; pain/discomfort was associated to poor sleep, depression, and suicidality. Sleep quality was also affected by stress; while sleep, stress, pain/discomfort, and internet addiction were directly related to depression (all p < .05). Ultimately, four factors impacted suicidality: stress, pain/discomfort, depression, and, indirectly, sleep quality (all p < .05). Although allergy had some effects, these did not reach statistical significance (p < .09). Conclusion: Findings suggest that allergy might impact suicidality indirectly through increased pain/discomfort, poor sleep, and depression.     

简论我国征信立法原则

加快征信立法已成为推动我国征信业发展的当务之急。构建什么样的征信法律制度、怎样构建征信法律制度必须在特定原则的指导下进行。我国征信立法必须坚持市场化的价值取向,建立市场化的征信机制,既是我国征信立法的出发点,又是构建我国征信法律制度的落脚点。推动信息公开和确保信息安全是我国征信立法中应当重点关注的问题和必须坚持的原则。在此基础上还应坚持效率优先兼顾公平原则、实体权利与程序规则并重的原则。     

A measuring instrument to evaluate e-service quality in a revenue authority setting

Tax revenue forms the backbone of any economy. The quality of the e-services provided by a revenue authority is therefore crucial, as e-service quality directly influences the burden of complying with tax obligations, and hence affects the tax compliance climate in a country. The aim of the study is the development of a measuring instrument that encapsulates the ‘lens of a tax practitioner’ in an e-service revenue authority setting. In order to develop a conceptual framework, an in-depth, qualitative approach was used to identify a comprehensive range of service attributes and dimensions that potentially drive e-service quality in the revenue authority setting. This framework is then compared with other relevant service quality models to derive at a proposed e-service quality-measuring instrument. Findings from this study may advance the understanding and the management of the e-service quality of the e-services in a revenue authority setting.     

Estimation of generalized exponential distribution based on an adaptive progressively type-II censored sample

In this paper, based on an adaptive Type-II progressively censored sample from the generalized exponential distribution, the maximum likelihood and Bayesian estimators are derived for the unknown parameters as well as the reliability and hazard functions. Also, the approximate confidence intervals of the unknown parameters, and the reliability and hazard functions are calculated. Markov chain Monte Carlo method is applied to carry out a Bayesian estimation procedure and in turn calculate the credible intervals. Moreover, results from simulation studies assessing the performance of our proposed method are included. Finally, an illustrative example using real data set is presented for illustrating all the inferential procedures developed here.     

厚尾分布情形下的信用资产组合风险度量

本文研究风险因子多元厚尾分布情形下的信用资产组合风险度量问题.用多元t-Copula分布来描述标的资产收益率分布的厚尾性,同时将三步重要抽样技术发展到基多元t-Copula分布的资产组合模型中,拓宽和丰富了信用资产组合风险度量模型.同时,并运用了非线性优化技术中的Levenberg-Marquardt算法来解决重要抽样技术中风险因子期望向量估计.模拟结果表明该算法比普通Monte Carlo模拟法的计算效率更有效,且能很大程度上减少所要估计的损失概率的方差,从而更精确地估计出信用投资组合损失分布的尾部概率或给定置信度下组合VaR值.