信息网格技术的研究和实现

信息网格是网格技术的重要应用模式，本文在分析网格技术的基础上介绍了信息网格的应用背景、定义，讨论了信息网格的关键技术，并详细介绍了信息网格的典型事例——上海网格。     

科技期刊利用互联网资源进行策划组稿的实践——以《国际检验医学杂志》为例

对于科技期刊而言,质量仍然是期刊可持续发展的根本.提高科技期刊质量的途径和方法很多,其中,编辑部主动向专家进行组稿约稿是科技期刊始终保持在同质期刊中的权威性,提升期刊质量和影响力最常见又切实可行的方法.本文以《国际检验医学杂志》为例,探讨如何利用互联网资源,如微信“问卷星”调查、百度学者、国家自然科学基金委员会官网等,及时了解专家的论文影响力、研究方向和最新成果等,并进行精准的策划组稿,取得较好效果.     

Precision measurement of the Newtonian gravitational constant

The Newtonian gravitational constant G, which is one of the most important fundamental physical constants in nature, plays a significant role in the fields of theoretical physics, geophysics, astrophysics and astronomy. Although G was the first physical constant to be introduced in the history of science, it is considered to be one of the most difficult to measure accurately so far. Over the past two decades, eleven precision measurements of the gravitational constant have been performed, and the latest recommended value for G published by the Committee on Data for Science and Technology (CODATA) is (6.674 08 ± 0.000 31) × 10⁻¹¹ m³ kg⁻¹ s⁻² with a relative uncertainty of 47 parts per million. This uncertainty is the smallest compared with previous CODATA recommended values of G; however, it remains a relatively large uncertainty among other fundamental physical constants. In this paper we briefly review the history of the G measurement, and introduce eleven values of G adopted in CODATA 2014 after 2000 and our latest two values published in 2018 using two independent methods.     

余华小说《第七天》中的生与死

《第七天》是余华继《兄弟》七年之后完成的最新一部长篇小说，描绘了主人公死去后所经历的事情以及勾起的回忆，为读者展现了一个平等、和谐的死亡世界。经过分析，作品中的生死问题包括三个方面：作品中的人物对死亡没有痛苦或恐惧，能够理性地看待死亡；生与死的意义被颠倒，死亡世界接近理想中的现实世界，更加引人向往；生与死由“爱”这条纽带联系起来，让人们在冰冷中感受到温情。这部小说暴露了大量的社会现实，引人深思，也备受争议。     

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.     

论生育权

本否证了生育权视为一种夫妻之间的身份权的观点，并指出其本质归属应为人格权之构成部分。认为生育权的权能构成应该包括生育请求权、生育决权、生育方式选择权，以此为基础提出了完整的生育权体系的观点。最后，章对生育权的侵权损害赔偿责任认定以及法律上的必要限制也作了阐释。     

从博弈论的角度看"教育减负"

在应试教育向素质教育转轨的过程中,“教育减负”是教育界和社会各界普遍关注的热点问题。从博弈论的角度来看,由于教育资源的短缺,以及个人理性和集体理性的不同一,“教育减负”呈现出一种“囚徒困境”的博弈。走出这种“囚徒困境,”还需要各博弈主体理性水平的提高和整个教育制度的创新。     

自尊的心理结构与作用

一直以来，自尊以其对人类社会生活和个体精神生活的独特作用倍受心理学家的关注。但时至今日，关于自尊的定义仍有分歧，而对自尊的结构也有过去的静态、单一的描述性观点发展到当前的动态、多维结构。同时，自尊作为个体自我系统的核心成分，对个体的学业、人际关系、主观幸福感、心理健康等均有着重要的影响。     

科技期刊编辑新媒体出版能力的培育

分析我国科技期刊编辑现状和新时期编辑职业能力的新要求,通过对出版格局的统筹策划能力、专业领域的预研判断能力、新媒体技术的开发应用能力、出版大数据的挖掘分析能力、出版实践的组织协调能力、面向国际战略的综合拓展能力等6个方面的解析,提出了当今科技期刊编辑所应具备和培养的全媒体出版的适应能力.     

浅析CET-4听力理解题与答题技巧

大学英语的教学目的是“使学生能以英语为工具,获取所需信息”。听车理解,即“听而理解意思”。在考试中要求考生边听、边理解、边阅读、边猜测（推断）,边作选择。本文通过对大学生英语CET－4听力理解题的分析谈一些答题技巧。