高温高湿环境下补液对有氧耐力的影响

目的：研究高温高湿环境下运动时补液对有氧耐力的影响。方法：随机选取吉林体育学院运动训练专业学生30名,年龄、身高、体重、肺活量、VO2max等指标均无差异,分为常温常湿组、高温高湿组、高温高湿补液组,测试实验过程中的心率（HR）、肌氧含量的变化、运动持续的时间以及恢复时间。结果：对高温高湿环境下运动进行补液干预,发现与高温高湿组相比,补液组体温、HR相对较低,肌氧饱和度下降幅度小,运动持续时间延长、恢复时间缩短。补液可以提高高温高湿环境下有氧运动的能力。     

Roles of neutrophil reactive oxygen species (ROS) generation in organ function impairment in sepsis

Sepsis is a condition of severe organ failure caused by the maladaptive response of the host to an infection. It is a severe complication affecting critically ill patients, which can progress to severe sepsis, septic shock, and ultimately death. As a vital part of the human innate immune system, neutrophils are essential in resisting pathogen invasion, infection, and immune surveillance. Neutrophil-produced reactive oxygen species (ROS) play a pivotal role in organ dysfunction related to sepsis. In recent years, ROS have received a lot of attention as a major cause of sepsis, which can progress to severe sepsis and septic shock. This paper reviews the existing knowledge on the production mechanism of neutrophil ROS in human organ function impairment because of sepsis.     

合成氧杂环化合物的双环化反应研究

以呋喃和吡喃为代表的氧杂环骨架存在于Puupehedione、Peniphenone A、Virgatoldes B等活性分子中,具有抗癌、抗溃疡、抗氧化等多样的生物活性。通过分子内和分子间双环化反应来构建氧杂环骨架得到了充分研究。归纳总结已有文献的优缺点,将为探寻新的氧杂环合成方法指明方向。     

二氧化碳加氢一步法合成二甲醚的研究进展

对二氧化碳加氢直接合成二甲醚的热力学、动力学行为、反应机理及催化剂的研究进展作了综述。     

从COD测定实验的改进看分析化学实验教材的改革

从分析化学实验教材中化学耗氧量（COD）测定实验的改进入手,阐述分析化学实验教材应增加知识点,开阔知识面的必要。     

The Comparison of Physiological Responses from Cycling on Friction-Braked and Electromagnetic Ergometers

Despite the apparent benefits of Title IX, the implementation of the law remains controversial, and there are divergent beliefs regarding its impact on collegiate sport. The purpose of this study was to examine how members of a university community, whose intercollegiate sport programs have changed, perceive and make sense of Title IX and the changes it incurred. Using a gendered lens (Birrell, 2000) and qualitative interviews with 13 individuals connected to the university community, insight was gained into their perceptions of Title IX and women's and men's athletic opportunities. The theme of opportunity gained and lost was central to how these individuals perceive Title IX and resonates with the liberal (feminist) concerns out of which Title IX was born.     

城市河道黑臭水体综合治理工程实例分析

针对某市河道黑臭水体的特性及污染物特点,采用"膜生物反应器(MBR)一体化工艺、补氧+生物膜、人工清淤"综合治理技术对其进行治理。实际治理结果表明,MBR一体化工艺出水水质达到了《城市污水再生利用景观环境用水水质》(GB/T18921-2019)的要求;补氧与生物膜的组合应用最大程度地消除了黑臭现象;采用人工清淤方式对河床内淤泥进行了全部清除,消除了内源污染;工程运行费用为70.39万元/年。该综合治理技术治理河道黑臭水体效果良好,适合在其他类似项目中推广应用。