不同入药部位中药元素含量的比较

用t检,比较了《兽药典》中113味以花果仁入药中药、101味以茎叶入药中药、105味以根须入药中药及48味其它入药中药11种无机元素含量,结果首次表明：茎叶类中药Zn含量显著高于花果仁、根须及其它三类中药;花果仁类中药P含量显著高于茎叶、根须二类中药;其它入药中药类Fe、Cu的含量显著高于花果仁、茎叶及根须类三类中药。     

矢量汉字分段处理

根据激光加工的特点 ,从传统字库中调出来的矢量汉字经过数据信息处理及转换 ,在二坐标激光加工机上加工 ,发现加工出的汉字轮廓粗糙难看、光顺性差 ,这是由于轮廓线多由碎直线段组成 针对这种情况 ,着重研究了为后续B样条、分段圆弧逼近 ,为防止字形失真而采用的分段算法     

内蒙古中西部地区村镇民居抗震设防研究

通过对内蒙古中西部地区村镇民居结构特点的分析及包头６．４级地震对此类房屋的震害分析,提出应重视农村民居的抗震设防研究,并提出可行的抗震设防措施。     

周转件构成的可修复系统的可靠性分析

系统在运行期间因部件失效而发生故障,进行更换维修后,系统部件的使用时间分布发生变化,系统可靠性指标的值也随之变化,对此情况下系统可靠性分析方法进行了研究。将一定范围内同类部件的整体看作系统,并考察全部由周转件构成的系统,通过对各个时刻系统内部件的使用时间以及维修次数分布建立数学模型,得到了系统可靠度随系统运行时间的增加而减小,系统部件更换率随系统运行时间增加而增加的结论。并通过航空公司的实际数据对结果进行了验证。分析结果为备件采购计划、部件梯次使用计划和维修策略的制订具有重要意义。     

Demystifying the Integrated Tail Probability Expectation Formula

ABSTRACT

Calculating the expected values of different types of random variables is a central topic in mathematical statistics. Targeted toward students and instructors in both introductory probability and statistics courses and graduate-level measure-theoretic probability courses, this pedagogical note casts light on a general expectation formula stated in terms of distribution and survival functions of random variables and discusses its educational merits. Often consigned to an end-of-chapter exercise in mathematical statistics textbooks with minimal discussion and presented under superfluous technical assumptions, this unconventional expectation formula provides an invaluable opportunity for students to appreciate the geometric meaning of expectations, which is overlooked in most undergraduate and graduate curricula, and serves as an efficient tool for the calculation of expected values that could be much more laborious by traditional means. For students’ benefit, this formula deserves a thorough in-class treatment in conjunction with the teaching of expectations. Besides clarifying some commonly held misconceptions and showing the pedagogical value of the expectation formula, this note offers guidance for instructors on teaching the formula taking the background of the target student group into account.     

基于SLS技术的非均质材料零件成型研究

基于SLS成型的非均质材料零件是一种变密度材料零件。预热温度和激光能量是影响SLS成型零件烧结密度的主要因素。通过实验调整预热温度和激光能量的参数,然后用MATALB对实验数据进行分析处理,得到烧结密度数学模型,达到对基于SLS成型的非均质材料零件烧结密度进行控制的目的。     

明清时期我国基层官制的量变与质变

作为古代中国富有特色的基层官制,明至清中期,县官制度经历其最后一次渐进性发展,在县官的铨选、任用、致仕、品级、待遇、管理等制度上不断加以完善,有效地实现了制度规定、职责实现与地方社会类型的高度统一。但是经过发展的基层官制仍然没有摆脱"钱谷刑名"的核心职责,所以这一时期的县官制度仍然呈现出一种量变。晚清时代,为适应中国社会性质的蜕变,基层官制也发生了根本性的变化。随着地方自治的推行和基层官制的行政、司法权分离,传统的县官制度逐渐为近代镇(乡)官制度所取代。至此,明清基层官制经历了从量变到质变、从县官到镇(乡)官的历史性变革。尽管如此,作为一种历史悠久的基层官制,传统县官制度的合理性内核仍为现代所需。     

回族民间剪纸及其艺术风格——以阿依舍·井春霞的剪纸为例

回族民间剪纸,既体现着中国文化的特点,也保留着伊斯兰文化的元素。宁夏知名剪纸艺人、回族女教师阿依舍.井春霞的剪纸经历及其剪纸作品集中国文化与伊斯兰文化于一体,有着独特的审美价值,丰富着回族民间剪纸及我国民间剪纸的种类,是我国民间剪纸艺苑中的一个重要组成部分。     

Is there still such a thing as the ‘European social model'?

This article presents a definition and characterisation of the ‘European social model’ (ESM), admitting the existence of variants and increasing heterogeneity in institutional and social contexts within the EU in the wake of successive enlargements. The constituent parts of the ESM are compared with data observed in the different countries, in search of empirical evidence of the ESM‘s position as a distinctive model of development, characteristic of Western Europe as opposed to the paths taken by other non‐European developed OECD countries.     

Changes in Sexual Distress,Depression and Sexual Function after Clitoral Reconstruction in Women with Female Genital Mutilation/Cutting

Abstract

Background: Female genital mutilation/cutting (FGM/C) links health complications and psychological distress. However, there is scarce literature on how women with FGM/C respond to treatment interventions. Objective: In this study, we aimed to assess changes in depression symptomatology, sexual function, and distress following clitoral reconstructive surgery combined with a psychoeducational intervention. Methods: The reconstructive surgery consisted of recovering the remaining clitoris and placing it externally and as close to the vagina as possible. FGM/C patients (n?=?27) received psychological support and sexual counseling upon undergoing the surgical intervention and were further assessed at 6-month follow-up. Moreover, they completed the Beck Depression Inventory and the Female Sexual Distress Scale Revised at these two time points. Patients’ sexual dysfunction was assessed according to DSM-5 criteria. Results: Statistically significant clinical changes after FGM/C were reported. Overall, patients presented reduced depression and sexual distress levels, and decreased female sexual interest/arousal disorder prevalence. Results also revealed that sexual distress improvements were more significant in Type I FGM/C patients. Conclusions: Significant improvements in sexual distress, psychopathology, and sexual function were observed in our sample following reconstructive surgery, suggesting that combined interventions are effective for treatment.