Old money,the nouveaux riches and Brunhilde’s marriage strategy

In a courtship game, wasteful conspicuous spending may provide information about some components of a suitor’s income. But conspicuous spending may be costly not only for the potential husband but also for the woman: it reduces the wealth of the man she may marry. In the optimal contractual arrangement, the bride’s cost moderates the threshold value of the conspicuous spending that she requires for marriage. We also find that a sound observable financial background (‘old money’) benefits both the suitor and the woman, and reduces wasteful spending on status goods. Furthermore, we analyze how a change in the intensity with which the suitor seeks the woman may affect the equilibrium pattern of conspicuous spending.     

Aging male symptomatology and eating behavior

Objective: The literature on eating disorders in older males is still very limited. We assessed the relationship between aging male symptomatology and eating behavior in middle-aged and older men.

Method: We distributed anonymous questionnaires to men aged 40–75?years living in or near Innsbruck, Austria, covering demographic items, current eating disorder symptoms (as defined by DSM-5), and associated measures of eating pathology, body image, and sports activity (including exercise addiction). We also administered the Aging Males’ Symptoms scale (AMS), and classified respondents as “high-AMS” (AMS score ≥37; N?=?82) or “low-AMS” (AMS score <37; N?=?386).

Results: High-AMS men reported a significantly higher mean current BMI, a greater prevalence of eating disorder symptoms, higher scores on the Eating Disorder Examination Questionnaire, greater risk of exercise addiction, and more negative body image than low-AMS men.

Discussion: We found a marked association between aging-male symptomatology and eating-disorder symptomatology in aging men. Our findings suggest that clinicians should carefully inquire about eating disorder symptoms in men aged 40 and above reporting aging-male symptomatology. Importantly, several men in the study reported “purging” via excessive exercise (as opposed to the more common methods of vomiting or use of laxatives or diuretics), and therefore this should be a subject of inquiry in clinical evaluations. To pursue these findings, subsequent studies of eating disorders in older men should consider assessing endocrinological measures, particularly testosterone levels, and should use longitudinal designs.     

新增长模式下产业升级与电力市场环境研究

为推进产业结构升级,促进区域经济可持续发展,浙江省陆续推出“四换三名”和“五水共治”工程,政策导向使得浙江省产业结构不断优化升级,逐渐形成了新的增长模式.本文旨在对浙江省新增长模式的特点及其对电力市场环境进行研究,研究结果表明,新增长模式下产业结构升级对电力市场的影响是不可逆转的,为适应经济发展的新模式,电力行业需要加快调整步伐,以支持经济发展的同时推进节能降耗工作实施.     

Bayesian analysis of an econometric model of birth inputs and outputs

This study offers a simultaneous equations model of the birth process with seven endogenous variables: four birth inputs (maternal smoking, maternal drinking, first trimester prenatal care, and maternal weight gain) and three birth outputs (gestational age, birth length, and birth weight). The data are taken from the National Longitudinal Survey of Youth. Our analysis conditions on twenty-nine exogenous variables including four racial dummies to account for the widely cited racial differences in birth outputs. We find that there is sizeable correlation between the disturbances in the four input and three output equations and among output disturbances, and that results from our simultaneous equations model are substantially different from those using the single-equation approach. It appears that the High/Low Risk Birth Weight Puzzle remains unresolved under our modeling framework.All correspondence to Kai Li. The authors gratefully acknowledge the research support of the Social Sciences and Humanities Research Council of Canada, and helpful comments on an earlier draft by the editor (Junsen Zhang), two anonymous referees, Sid Chib, Kei Hirano, John Geweke, Gary Koop, seminar participants at the University of Alberta, the University of California at Irvine, University of Kansas, University of Minnesota, Queen Mary College of University of London, Washington University at St. Louis, and participants of the 2001 Winter Meetings of the Econometric Society in New Orleans. We are solely responsible for any errors contained herein. Responsible editor: Junsen Zhang.     

当前中国企业研究生工作站存在的问题及对策研究

研究生培养质量的提高是当前我国研究生教育工作的主题,江苏省企业研究生工作站培养模式是研究生教育创新工程的重要形式,也是提升研究生培养质量的重要平台。文章结合河海大学所建企业研究生工作站的实践,探究企业研究生工作站的运行模式、机制、组织架构及管理制度,基于对现有工作站实践中存在问题的基础,提出了相应的对策。     

两种方法提取宁夏沙枣多糖及含量测定比较

采用超声提取法和常规提取法从沙枣中提取多糖并测定其含量,并对两种方法进行比较。结果表明：超声法提取样品的平均含量为2.66%,平均回收率为99.91%,RSD=0.51%;常规法提取样品的平均含量为1.337%。超声法提取沙枣多糖含量也比常规法高。     

浙东史学与民国经史转型——-以刘咸炘、蒙文通为中心

晚清民国时期,重新阐释、构建中国学术的渊源流变成为近代学人沟通中西的重要环节。巴蜀学人蒙文通、刘咸炘试图重塑浙东史学,寻求传统学术的近代出路。刘咸炘构建以章学诚为核心,以宋世婺州史学为表,明之姚江理学为里的浙东学术系谱,旨在塑造、贯彻浙东史学以公统私、广大圆通的学术特质,以此重建中国文化,回应中西古今之争。蒙文通强调南宋浙东史学与清代浙东史学的差别,以秦汉新儒学为根本,将南宋浙东史学构建成为儒史相资的典范,以此阐扬儒学在中国文化中积极的历史意义和现实价值,希冀推昔人之陈说,示大法于将来。以疏源浚流的方式呈现晚近各派学人转化传统学术的本意与主旨,或可探明传统学术的流变,以资当下构建中国学术本位借鉴。     

有模糊时间窗的车辆调度组合干扰管理研究

研究带有模糊时间窗的车辆调度组合干扰管理模型及其混合遗传算法.采用时间窗模糊化处理方法,定义客户满意度函数,根据干扰管理思想对车辆调度中组合性干扰事件进行分析,从配送路径、配送成本和客户满意度三个方面进行干扰辨识与度量,建立基于模糊时间窗的车辆调度组合干扰管理模型;构造模型求解的混合遗传算法,将最佳客户插入规则与遗传算法结合,同时在算法中嵌入模糊优化程序以处理问题的模糊特征;进行数值实验,实验结果验证了模型与算法的有效性.     

二十世纪末美术界“张吴之争”分析与研究

20世纪末美术界的张吴之争,主要围绕吴冠中先生的笔墨等于零思想、张仃先生守住中国画的底线以及二人争论的焦点——笔墨展开讨论,最终深化为一场激烈的学术论辩。这场学术论辩的参与者大致可以分为四个阵营:以张仃、关山月、潘絜兹等老画家为代表的口号派,认为笔墨是中国画安身立命的根本,否定了笔墨也就否定了中国画;以郎绍君、洪惠镇、陈传席等为代表的传统派,对于笔墨等于零思想的论点、论据进行一一反驳,并且立足本源对笔墨进行概念上的阐释,试图确立其在中国画艺术体系中的重要地位;以董欣宾、赵绪成、薛永年、李兆忠、孙力军等为代表的客观派,试图以客观的姿态对待吴、张思想,指出其中合理与不合理的成分,继而进行价值判断和详细探讨;以吴冠中、翟墨、林木、水天中等为代表的革新派,在承认笔墨的文化内涵的前提下,更强调其所具有的造型功能,积极思考现代语境下中国画笔墨的创新与发展问题。张吴之争的本质是针对全球化浪潮中发展中国画要不要重视传统基因——笔墨,以及要不要保持国画的边界问题而展开的学术论辩,对新世纪中国画的发展之路提供了重要的借鉴。