排序方式： 共有9条查询结果，搜索用时 17 毫秒
1
1.
运动性贫血时大鼠红细胞锌卟啉、转铁蛋白受体及营养干预的影响 总被引：3，自引：2，他引：1
红细胞锌卟啉、红细胞膜转铁蛋白受体是反映铁贮备的指标,实验结果表明:运动训练导致运动性贫血大鼠红细胞锌原卟啉含量和红细胞膜转铁蛋白受体含量明显增加,且与血清铁呈高度相关,说明红细胞锌卟啉是反映缺铁性贫血的良好指标,而红细胞膜转铁蛋白受体含量能更为准确地反映红细胞内和机体铁代谢状况;抗贫血铁制剂复合营养补剂的干预显著降低了运动性贫血大鼠红细胞锌原卟啉和红细胞膜转铁蛋白受体含量,并通过对这些机体铁代谢状况指标的改善反映抗贫血铁制剂复合营养补剂对提高大鼠红细胞铁贮备和维持大鼠铁代谢稳定具有积极作用. 相似文献
2.
本文研究了IPTV(网络电视)出现的背景及其提供的媒体服务的技术特性,并对比分析了美国、法国、意大利、香港等国家和地区的IPTV发展现状和成功因素。此论文通过分析这些案例,对IPTV在韩国市场的技术可能性进行了展望,同时对比分析了IPTV与有线电视的异同之处,以及与无线电视的竞争关系。最后,本文预测了IPTV进入收费市场的时机及在与有线、无线电视的激烈竞争下的生存战略。 相似文献
3.
Previously we have designed and implemented new image browsing facilities to support effective offline image contents on mobile devices with limited capabilities: low bandwidth, small display, and slow processing. In this letter, we fulfill the automatic production of cartoon contents fitting small-screen display, and introduce a clustering method useful for various types of cartoon images as a prerequisite stage for preserving semantic meaning. The usage of neural networks is to properly cut the various forms of pages. Texture information that is useful for grayscale image segmentation gives us a good clue for page layout analysis using the multilayer perceptron (MLP) based x-y recursive algorithm. We also automatically frame the segment MLP using agglomerative segmentation. Our experimental results show that the combined approaches yield good results of segmentation for several cartoons. 相似文献
4.
This letter proposes a categorization matrix to analyze the playing style of a computer game player for a shooting game genre. Our aim is to use human-centered modeling as a strategy for adaptive games based on entertainment measure to evaluate the playing experience. We utilized a self-organizing map (SOM) to cluster the player's style with the data obtained while playing the game. We further argued that style-based adaptation contributes to higher enjoyment, and this is reflected in our experiment using a supervised multilayered perceptron (MLP) network. 相似文献
5.
通过对大鼠进行为期7周的递增负荷实验,发现长期递增负荷运动训练导致大鼠肝脏形态学结构异常.肝脏功能下降;心肌形态学结构异常,心肌肌丝排列紊乱、线粒体结构异常和功能降低,导致运动能力低下.通过对实验组大鼠进行中药干预使得运动大鼠肝脏形态学结构维持正常,明显降低了大负荷强度运动对肝脏形态学的不利影响;中药干预使运动大鼠心肌形态学结构维持正常,心肌肌丝排列整齐、线粒体结构完整;有利于运动能力的维持. 相似文献
6.
7.
用原子吸收分光光度计法对16名贫血运动员及24名正常(对照组)运动员血清铁、铜进行测定并进行比较。结果表明,贫血组运动员血清铁浓度显著低于对照组(P<0.05),贫血组运动员出现了铁代谢紊乱现象,贫血组运动员血清铜显著高于对照组(P<0.05)。提示原子吸收分光光度计法是灵敏可靠的监测运动员血清铁和铜等微量元素的方法,并且贫血运动员应加强对铁代谢指标的测试。 相似文献
8.
营养补充对运动性贫血大鼠红细胞指数、血清铁、铁蛋白及转铁蛋白指标影响的研究 总被引：3，自引：1，他引：2
运动训练导致铁代谢紊乱是造成机体造血机能下降的重要因素之一.实验结果表明:长期递增负荷跑台运动导致运动组大鼠红细胞指数显著低于对照组,出现运动性贫血状态,血清铁呈现降低趋势,血清铁蛋白显著降低,血清转铁蛋白显著升高,机体铁代谢呈现紊乱状态;营养干预后的运动 营养组红细胞指数、血清铁和铁蛋白浓度显著高于运动组,而血清转铁蛋白浓度显著低于运动组,说明营养补剂可以明显改善由于运动训练所引起的铁代谢紊乱状况,并可以明显提高大鼠的血红蛋白浓度. 相似文献
9.
We report an unusual case in which garbage files were uploaded to the DOI system of a Korean scholarly journal (Journal of Educational Evaluation of Health Professions). This was a deliberate attack to disrupt the journal so that the DOI pages were directed to an invalid page. It was a mysterious type of attack that had never previously occurred in the DOI system. This behaviour can therefore be considered as a new type of misconduct. From the legal viewpoint, this action may be considered a criminal offence, under Korean law, to disrupt a national institute which publishes a journal on the basis of its constituting interference with a government office in the execution of its duties. We report this strange case so that publishers and editors can be alert to this new type of cyber‐crime and to help them prevent any reoccurrence. 相似文献
1