Ethical Numbers: Ethics Training in U.S. Graduate Statistics Programs, 2013–2014

As important members of research teams, statisticians bear an ethical responsibility to analyze, interpret, and report data honestly and objectively. One way of reinforcing ethical responsibilities is through required courses covering a variety of ethics-related topics at the graduate level. We assessed ethics requirements for graduate-level statistics training programs in the United States for the 2013–2014 academic year using the websites of 88 universities, examining 103 biostatistics programs, and 136 statistics degree programs. We categorized programs’ ethics training requirements as required or not required. Thirty-one (35.1%) universities required an ethics course for at least some degree students. Sixty-two (25.5%) degree programs required an ethics course for at least some students. The majority (77.4%) of required courses were worth 0 or 1 credit. Of the 177 programs without an ethics requirement, 19 (10.7%) listed an ethics elective. Although a single ethics course is insufficient for instilling an ethical approach to science, degree programs that model expectations through coursework point to the value of ethics in science. More training programs should prepare statisticians to consider the ethical dimensions of their work through required coursework. Supplementary materials for this article are available online.     

创新精神和能力的培养是研究生教育的生命力所在

创新能力培养和提高是研究生教育的重中之重。让学生进入学术前沿 ,引导学生深入实际、发现问题并提出解决问题的方案 ,鼓励学生敢于向传统挑战 ,建立良好的师生关系 ,营造和谐的学习研究环境等是实现这个重中之重的关键     

孔径自动检测机构的设计与分析

模拟人工测量过程,设计了一种适用于气体测微传感器自动测量孔径的柔顺机构.该机构也适用于孔径分选以及小型轴类零件的自动装配等作业过程.     

为国家教育妇女：加纳的教育改革与性别问题

1986改革中,加纳政府根据结构调整方案(SAP)和2020计划,关注教育中存在性别的不平等现象,努力解决女生在科学、数学和技术课程(SMT)的学业成绩、入学率等问题,并建立女子教育联合会.问题的解决要依靠真正普及免费的义务教育以及将妇女教育延伸到职业和高等教育机构.     

高T_c超导材料微波特性的自动化测量

采用单腔多模谐振腔,通过部分置换样品的方法,在程控标量网络分析系统上,实现了高 T_c 超导材料微波特性的自动化测量。该方法简单、准确,能同时测出超导样品的工作频率、微波表面阻抗、工作温度等多个参数,并能以图或表的形式给出测试结果。给出了3 cm 频段上YBCO 块材样品在77K 及附近温度下的测量结果,指出 YBCO 块材的微波特性还有待提高。     

《火炮反后坐装置设计》课程教学探索

《火炮反后坐装置设计》是火炮及自动武器专业的一门主要专业课 ;它不仅研究制退机和复进机的结构设计 ,而且研究其工作参数与全炮受力的关系 ,旨在解决火炮及自动武器威力与机动性的矛盾。研究了该课程的教学内容改革和多媒体教学问题 ,阐述了该课程教学内容应体现本领域的新原理、新结构、新技术 ,应与相关学科和技术的发展相适应 ,提出了对于本课程应用多媒体教学手段将明显提高教学效率和教学效果     

地方电视台电视编辑特色栏目策略

地方台必须将视角放远,充分考虑地方的实际情况和自身条件,用战略的眼光规划和设计自己的特色栏目,以提高电视特色栏目的市场占有率。一个成功的电视特色栏目从其命名、制作、播出,直到退出电视节目市场,有着特色栏目的市场生命周期。所以,任何电视特色栏目的生命力都在于发展,是一个动态的过程,必须用发展的方式去经营电视特色栏目,才可能获得成功。     

电视机自动增益控制电路动态特性测量

本文提出一种电视机自动增益控制电路动态特性简易测量方法.按照此法,只需在待测电视机前加一级可调衰减器,就能用常用电子仪器测出自动增益控制电路的动态特性,并以此为依据改善电视机相关电路的性能.     

Flood Catastrophe Model for Designing Optimal Flood Insurance Program: Estimating Location‐Specific Premiums in the Netherlands

As flood risks grow worldwide, a well‐designed insurance program engaging various stakeholders becomes a vital instrument in flood risk management. The main challenge concerns the applicability of standard approaches for calculating insurance premiums of rare catastrophic losses. This article focuses on the design of a flood‐loss‐sharing program involving private insurance based on location‐specific exposures. The analysis is guided by a developed integrated catastrophe risk management (ICRM) model consisting of a GIS‐based flood model and a stochastic optimization procedure with respect to location‐specific risk exposures. To achieve the stability and robustness of the program towards floods with various recurrences, the ICRM uses stochastic optimization procedure, which relies on quantile‐related risk functions of a systemic insolvency involving overpayments and underpayments of the stakeholders. Two alternative ways of calculating insurance premiums are compared: the robust derived with the ICRM and the traditional average annual loss approach. The applicability of the proposed model is illustrated in a case study of a Rotterdam area outside the main flood protection system in the Netherlands. Our numerical experiments demonstrate essential advantages of the robust premiums, namely, that they: (1) guarantee the program's solvency under all relevant flood scenarios rather than one average event; (2) establish a tradeoff between the security of the program and the welfare of locations; and (3) decrease the need for other risk transfer and risk reduction measures.     

利用数学软件复原碎纸片的方法

研究了碎纸片的拼接复原问题,建立了合理有效的碎纸片拼接复原的数学模型；给出了数学软件实现自动拼接的具体算法；结合人工拼接得出复原图片；最后,对所给的拼接方法提出了改进方向.