墨子教育思想解读

墨子是一位影响世界发展的伟大教育家之一,其教育思想在历史上有一定意义。开创了“义务教育”的先河。墨子在《墨子·所染》中以染为喻,指出人接受什么教育,便会被什么感化。教育的成败对于一个人来说关乎能否成才(济人),对于一个国家来说关乎盛衰和民族的存亡(救世),这就是墨子主张的“学而优则世”。可见墨子对教育的作用的认识是有独到之处的。     

Why some theories fail to describe, explain, and predict: Reconstructing the future

Thomas Kuhn, as a physicist, persuasively discussed theory construction and change as well as pointed out the existence of paradigm shifts. But, constrained by human being's way of perceiving reality and thinking, though scholars and experts can construct theory so as to understand human interactions, they will sooner or later realize that theory often fails to perform satisfactorily. What is the nature or substance of this world and how would the world develop in the future? This article is written from the philosophical and cultural perspectives and suggests a new way of reconstructing the future. By taking human behavior, language, science, philosophy, mathematics, and logic into consideration, the author argues that in this way we would be able to enter into a new world of analyzing phenomena.     

Treatment effect measures under nonproportional hazards

In a clinical trial with a time-to-event endpoint the treatment effect can be measured in various ways. Under proportional hazards all reasonable measures (such as the hazard ratio and the difference in restricted mean survival time) are consistent in the following sense: Take any control group survival distribution such that the hazard rate remains above zero; if there is no benefit by any measure there is no benefit by all measures, and as the magnitude of treatment benefit increases by any measure it increases by all measures. Under nonproportional hazards, however, survival curves can cross, and the direction of the effect for any pair of measures can be inconsistent. In this paper we critically evaluate a variety of treatment effect measures in common use and identify flaws with them. In particular, we demonstrate that a treatment's benefit has two distinct and independent dimensions which can be measured by the difference in the survival rate at the end of follow-up and the difference in restricted mean survival time, and that commonly used measures do not adequately capture both dimensions. We demonstrate that a generalized hazard difference, which can be estimated by the difference in exposure-adjusted subject incidence rates, captures both dimensions, and that its inverse, the number of patient-years of follow-up that results in one fewer event (the NYNT), is an easily interpretable measure of the magnitude of clinical benefit.     

Quantification of follow-up time in oncology clinical trials with a time-to-event endpoint: Asking the right questions

For the analysis of a time-to-event endpoint in a single-arm or randomized clinical trial it is generally perceived that interpretation of a given estimate of the survival function, or the comparison between two groups, hinges on some quantification of the amount of follow-up. Typically, a median of some loosely defined quantity is reported. However, whatever median is reported, is typically not answering the question(s) trialists actually have in terms of follow-up quantification. In this paper, inspired by the estimand framework, we formulate a comprehensive list of relevant scientific questions that trialists have when reporting time-to-event data. We illustrate how these questions should be answered, and that reference to an unclearly defined follow-up quantity is not needed at all. In drug development, key decisions are made based on randomized controlled trials, and we therefore also discuss relevant scientific questions not only when looking at a time-to-event endpoint in one group, but also for comparisons. We find that different thinking about some of the relevant scientific questions around follow-up is required depending on whether a proportional hazards assumption can be made or other patterns of survival functions are anticipated, for example, delayed separation, crossing survival functions, or the potential for cure. We conclude the paper with practical recommendations.     

Testing Hysteresis in Unemployment in G7 Countries Using Quantile Unit Root Test with both Sharp Shifts and Smooth Breaks

Social Indicators Research - We apply a Quantile unit root test with both Sharp Shifts and Smooth Breaks to revisit hysteresis in unemployment for G7 countries using data for the period...     

Fungal community composition analysis of 24 different urban parks in Shanghai,China

Urban Ecosystems - Urban parks are an important constituent of cities; they harbour microbial diversity which plays a key role in soil ecosystem functioning. The bacterial diversity of many urban...     

Marx’s International Outlook and Its Contemporary Value

Marx probed into the laws of the evolution of world history and the international system from the perspective of grand history, incisively revealing the inherent historical dynamics and evolutionary secrets of the laws of this development and thus providing a new analytical framework for our understanding of the nature of international relations and the characteristics of the era. Compared with related international relations theories of the same period, Marx’s international outlook had a unique class standpoint and methodological principles and adopted rigorous speculative logic and lofty values. Marx conducted scientific research and dialectical analysis of the laws of evolution and the intrinsic nature of international society, especially the historical mission of the proletariat. These ideas, unique in the intellectual and theoretical spectrum of international relations, provide an intellectual guide for the innovation of Chinese diplomatic theory in the new era.     

人口变动对气候变化的影响

人口与气候变化关系是一个非常缺乏研究的领域。本文总结近年有关人口变动对气候变化影响研究领域的状况,讨论不同研究方法和模型的应用成果及其局限性,特别介绍了应用整合评估模型iPETS对主要国家和地区温室气体排放预测结果,指出人口变动与经济发展、技术变动等都是人类影响气候变化的决定因素;人口变动的影响不只是人口规模的增减,人口和家庭户结构及其空间分布的变化也是应该考虑的内容;家庭户应该成为气候变化研究的人口分析单位;人口老化、城市化、家庭规模缩小等都是影响未来气候变化的重要人口因素。本研究提供了改进气候预测模型对人口变量处理方式的实例,指出了在制定减缓气候变化政策过程中考虑人口因素的重要性和可操作建议。     

Tuning in to the rhythm: The role of coping in strategic management of work-life conflicts in the public relations profession

How public relations practitioners cope with work-life conflict was studied through a national survey of a random sample of PRSA (Public Relations Society of America) members. These active practitioners reported strong preferences in using more proactive conflict coping strategies, such as rational action and positive thinking. Women and those with a graduate degree tend to report more coping behaviors than others. Three types of stressors are identified as sources of work-life conflict: behavior-driven, work-driven, and life-driven.