基于EQ-5D量表的农村已婚育龄妇女健康相关生命质量评价

目的：评价农村已婚育龄妇女的生命质量,探索影响其生命质量的主要因素,提出相关政策建议。方法：应用欧洲生命质量量表（EQ-5D）的五维度测量体系及直观式健康量表（VAS）进行评价。结果：已婚育龄妇女的总体健康状况优于一般人群,妇科疾病是妇女的主要健康问题,在婚、受教育程度高且无慢性妇科病的已婚育龄妇女生命质量较高。结论：已婚育龄妇女要增强自身健康意识、调整好来自家庭与工作的压力。政府应该定期开展妇女病的普查工作,加大对女性受教育问题的重视,采取相应的政策措施,以提高妇女的生命质量。     

如何实现绿色城镇化发展?——基于内生经济增长理论分析

基于内生经济增长理论框架,将能源消费、环境污染引入生产函数,把环境质量引入消费函数,建立城镇化发展与经济增长之间的联系,构建一个在城镇化发展过程中讨论能源消费结构优化与环境污染治理的内生增长模型,以此探讨分析实现绿色城市化发展的路径。在此基础上,利用中国内地30个省份2005—2014年的面板数据构建计量模型分析了城镇化发展与物质资本、人力资本、能源消费、环境污染以及能源消费结构的相互作用关系。基于上述分析,认为:加大新能源、环境治理人力资本创新研发投入,促进生产技术革新、生产方式绿色化,是绿色城镇化的必由之路;鼓励多元参与,构建多中心治理体系,培育居民节能环保生活方式,是绿色城镇化的必要条件。     

新中国60年劳伦斯研究之考察与分析

中国的劳伦斯研究从20世纪30年代开始起步,自80年代起走向繁荣。在80年代,劳伦斯笔下的性描写是学者关注的中心,也鼓舞和启发了中国作家对人性的深入探索。90年代之后,中国学者对劳伦斯研究的范围不断扩大,对其创作中的工业文明与大自然的冲突主题、两性关系主题、死亡与再生主题,非理性心理描写、原始主义等问题都进行了深入探究,也对其作品中的象征隐喻手法进行了全面的分析。精神分析、生态批评、比较文学,以及原型批评、解构主义批评、叙事学、伦理学批评等研究方法,都应用于劳伦斯研究,取得了可观的成绩。另一方面,中国的劳伦斯作品翻译良莠不齐,研究的低水平重复、缺乏学术规范现象也十分严重。     

政府R&D补贴、产权性质与实质性创新绩效 ——基于中国高技术产业的经验数据

以我国高技术产业为样本,采用面板门槛效应模型,实证检验了政府R&D补贴、产权性质与企业实质性创新绩效之间的关系。结果表明,高强度补贴会显著降低政府R&D补贴的正向作用;民营经济比重的上升则有助于政府R&D补贴作用的充分发挥。进一步研究发现,2000—2018年,仅2005、2011和2013等三个年份的补贴强度过高,2007年以后,民营经济的发展均处于合理区间。分区域来看,补贴强度过高的省份多达12个,且大多数位于中部和西部地区;民营经济比重过低的省份有7个,且大多数位于西部地区;补贴强度和民营经济均处于合理区间的有北京、天津、河北等14个省份,而两者均处于不合理区间的有山西、江西、湖北等5个省份。因此,合理设置补贴额度、充分发挥民营经济优势,是真正发挥政府R&D补贴作用、实现高技术产业创新发展的关键所在。     

Pre-decisional information acquisition: Why do we pay too much for information? Brief report

People tend to acquire more information while making their decisions than a rational and risk-neutral benchmark would predict. We conduct a carefully designed experiment to derive five plausible reasons for pre-decision information overpurchasing. The results show that overpurchasing of information can be almost entirely explained by systematic information processing errors (misestimation or incorrect Bayesian updating), possibly caused by biased intuitive decision processes. Other factors, such as overoptimism about the validity of the new information, risk aversion, ambiguity aversion, and curiosity about (irrelevant) information, play at most a minor role. Our results imply that information overacquisitions are mainly driven by the overestimation of the usefulness of additional information.     

Characterizations based on order statistics under sampling without replacement

In this paper, we consider finite populations and investigate their characterizations by regressions of order statistics under sampling without replacement. We also investigate some asymptotic results when the size of the population goes to infinity.     

Nonparametric control charts based on runs and Wilcoxon-type rank-sum statistics

In this article, we introduce three new distribution-free Shewhart-type control charts that exploit run and Wilcoxon-type rank-sum statistics to detect possible shifts of a monitored process. Exact formulae for the alarm rate, the run length distribution, and the average run length (ARL) are all derived. A key advantage of these charts is that, due to their nonparametric nature, the false alarm rate (FAR) and in-control run length distribution is the same for all continuous process distributions. Tables are provided for the implementation of the charts for some typical FAR values. Furthermore, a numerical study carried out reveals that the new charts are quite flexible and efficient in detecting shifts to Lehmann-type out-of-control situations.     

中国制造业企业创新行为的观测和实证研究 ——基于浙江省制造业1454家企业问卷调查的分析

 本文在浙江省制造业1454家企业大样本调查问卷的基础上,在微观层面研究了企业创新行为以及影响因素。首先利用统计分析的方法考察了企业创新投入的特征、创新投入的行业分布以及创新投入的产出绩效,并且发现了企业规模与R&;D强度之间呈现倒U型关系,这与安同良等人发现的倾斜V型关系的结论不同。其次运用计量分析的方法在有效控制了企业所处行业的技术水平差异、企业产权结构、政府资金扶持、企业品牌和企业设备技术水平后,研究发现：企业规模与企业创新投入之间也呈现较明显的倒U型关系,并且存在规模“拐点”;企业知识产权战略对企业创新投入具有明显的促进作用;出口贸易对企业创新投入并不显著,但发达国家特别是针对发展中国家设置的技术性贸易壁垒的技术标准化要求对企业创新投入有比较明显的促进作用;而企业集聚对企业的创新投入的影响并不确定。     

Saving behaviour and earnings uncertainty: Evidence from the British Household Panel Survey

For the first time, this paper uses a panel data set, the British Household Panel Survey, to analyse saving behaviour in Britain. One objective is to test the precautionary saving hypothesis, according to which households save to self-insure against uncertainty. Our results show that in accordance with this hypothesis, various measures of uncertainty based on earnings variability have a statistically significant effect on households' saving decisions. Moreover, in accordance with the life cycle model, households save more if they expect their financial situation to deteriorate. Received: 15 June 1999/Accepted: 4 January 2001     

Impact of metabolic status on the association of serum vitamin D with hypogonadism and lower urinary tract symptoms/benign prostatic hyperplasia

Objective: The objective of this study is to investigate the impact of metabolic status on associations of serum vitamin D with hypogonadism and lower urinary tract symptoms (LUTS)/benign prostatic hyperplasia (BPH).

Patients and methods: A total of 612 men underwent physical examination, biochemical/hormonal blood testing, and transrectal prostate ultrasound. Moreover, the subjects filled out standard questionnaires for identification and grading of LUTS and hypogonadism symptoms. Parameters were statistically compared with independent t-tests and correlation analyses.

Results: Vitamin D levels positively correlated with total testosterone (TT) but not with prostate volume or International Prostate Symptom Score (IPSS). Patients with metabolic syndrome had significantly lower vitamin D levels, which were not correlated with TT, prostate volume, or IPSS. However, vitamin D was positively correlated with TT, and negatively correlated with prostate volume and quality-of-life IPSS in subjects without metabolic syndrome.

Conclusion: The clinical usefulness of vitamin D for treatment of hypogonadism or LUTS/BPH varies according to metabolic status.