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Health researchers have noticed that some groups of people are more consistently healthy than others, and wondered… Is ......
In water industry, the chlorine is mostly used as a disinfectant agent. The chlorine present in potable water as a disin......
The 3<em>X</em> + 1 problem (Collatz conjecture) has been proposed for many years, however no major breakthrough has bee......
The 3X + 1 problem (Collatz conjecture) has been proposed for many years, however no major breakthrough has been made so......
在老龄化程度不断加深的背景下，我国农村社会养老保险制度迫切需要建立，但是又面临着极大的阻碍。建议从基金管理机构设置、基金筹集......
近年来，对动机的研究一直是心理学界的热点，尤其是激发学习动机，提高学习能力的问题更受到各个心理学流派的关注，以至在本世纪心理学的......
教育是产业，是个人(或家庭)与国家为主要投资主体的产业，是增加社会效用和个人满足感的部门。对教育进行投资的过程就是人力资本和物......
AIM: To determine whether an active intervention is beneficial for the survival of elderly patients with hepa-tocellular......
网络教育的质量是当前社会各界关注的焦点之一。教师的执教动机和行为紧密相联,两者直接关系到教学效果和教学质量。基于期望价值......
目的 分析剖宫产率升高的原因及指征的变化以及指征与母儿预后的关系。方法 对5106例剖宫产手术病例进行回顾性分析。结果 平均剖......
分析了新一轮集体林产权制度改革后林农经营不同林种的行为特征,得到集体林产权制度改革预期目标与改革结果不相一致的结论。用制......
文章引入Bernoulli随机变量,研究它的基本运算性质,并尝试借助Bernoulli随机变量的数字特征及其各种运算性质来计算部分离散形随机......
心理因素是现代竞技体育比赛中十分重要的一个环节,它是取得胜利的重要手段.通过对竞技健美操运动员产生赛前紧张和焦虑的原因进行......
Children＇s expectancy beliefs and subjective task values through two years of school-based program a
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从博弈论角度出发,以假设条件为分析前提,进行模型构建,并对一次博弈与重复博弈进行分析,分别得到均衡解,并运用数学推导分析守信......
歌唱训练中的想象,实为一项自我意识调控法.它是从生活中看得见、摸得着、感受得到的事物里,抽取共通点,转化为发声技巧,引导于实......
Prognostic Nutritional Index Predicts Life Expectancy of Patients with End-Stage Oral Cancer: A Retr
Background: Generally, clinicians do not accurately estimate life expec-tancy in terminally ill patients with cancer. Ai......
This study researches the relationship between motivation and academic success as measured by the Valence, Instrumentali......
In Japan, 18.1% of the population known as baby-boomers will become the late-stage elderly in 2025, thereby needing a fo......
The aim of this study was to determine the mortality rate and the burden of breast cancers among residents of Inner Mong......
历史是“客观的记载”，但又不仅仅是“客观的记载”。历史叙述是一种言语行为。也是一种期待类型。由文体的名实不一、体用变化加以......
Sustaining Increase in Life Expectancy in Africa Requires Active Preventive Measures against Non-Com
It is projected that aged population (≥60 years) will continue to increase globally, including in Africa. This is due t......
Reduced Life Expectancy Model Analyses of Exposure Time Effects of Endocrine Disruptors to Teleost F
In this current paper, the exposure time effects on four endocrine disruptors and teleost fishes were evaluated using th......
