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诗歌以其凝练简洁的语言和篇章特点及其所蕴含的丰富复杂的情感内容而被世代传诵,领悟诗歌中的感情基调和内容意义是对诗歌含意准确把握并世代相传的重要前提之一。因此,如何用现代人的认知方式理解遥远古代诗人在创作诗歌时候的思想和情感,就成为解读诗歌的关键。诗歌篇幅虽短小,却也蕴含着起承转合的篇章结构,同样可以用各种语言学理论对其进行语篇分析。本文就从认知语境和语篇的角度对马致远的小令《天净沙＆#183;秋思》进行解读。 相似文献
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儿童少年钙营养状况研究进展 总被引：4，自引：0，他引：4
研究补钙对儿童少年钙营养状况的改善作用及运动对补钙的影响,具有十分重要的实践意义。综述了儿童少年钙的需要量、摄入量以及有关钙补充方面的研究进展,指出青春期前和青春期(尤其早期)可能是补钙和运动干预改善儿童少年钙营养状况的最佳时间。 相似文献
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目的:旨在研究肌酸补充(CS)和电刺激(ES)对C2C12肌管葡萄糖摄取相关通路蛋白含量和基因表达的影响,阐明肌酸对GLUT4调节的相关信号通路,并讨论CS是否对ES具有叠加效应,为肌酸提高耐力水平提供新的理论依据。研究方法:0.5mM和2 mM浓度的肌酸孵育分化5 d的肌管48h,然后电刺激(15V,30ms,3Hz)共分化7d的肌管120 min。结果:ES引起AMPK-α2和GLUT4 mRNA表达及GLUT4蛋白含量显著增加(P<0.05),糖原显著下降(P<0.05)。不同浓度的CS没有引起AMPK-α2 mRNA表达变化,却使得GLUT4 mRNA和蛋白含量显著增加(P<0.05),糖原含量也无显著性增加(P>0.05)。ES+CS组与C组和同浓度CS组相比,明显上调AMPK-α2 mRNA和GLUT4 mRNA表达及GLUT4蛋白含量(P<0.05)。结论:1)15V,30ms,3Hz的刺激参数,ES120min没有引起细胞膜明显损伤,是研究耐力运动对肌肉糖代谢影响的适合参数。2)ES能通过AMPK途径增加肌管糖摄入和糖转运。3)单纯CS对肌管糖含量没影响,肌酸或许是通过AMPK非依赖性通路调节糖摄入。4)CS对ES对糖摄入的调节具有叠加效应。 相似文献
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Luciano A. Silva Camila B. Tromm Guilherme Da Rosa Karoliny Bom Thais F. Luciano Talita Tuon 《Journal of sports sciences》2013,31(11):1164-1176
Abstract Thirty-six male rats were used; divided into 6 groups (n = 6): saline; creatine (Cr); eccentric exercise (EE) plus saline 24 h (saline + 24 h); eccentric exercise plus Cr 24 h (Cr + 24 h); eccentric exercise plus saline 48 h (saline + 48 h); and eccentric exercise plus Cr 48 h (Cr + 48h). Cr supplementation was administered as a solution of 300 mg · kg body weight?1 · day?1 in 1 mL water, for two weeks, before the eccentric exercise. The animals were submitted to one downhill run session at 1.0 km · h?1 until exhaustion. Twenty-four and forty-eight hours after the exercise, the animals were killed, and the quadriceps were removed. Creatine kinase levels, superoxide production, thiobarbituric acid reactive substances (TBARS) level, carbonyl content, total thiol content, superoxide dismutase, catalase, glutathione peroxidase, interleukin-1b (IL-1β), nuclear factor kappa B (NF-kb), and tumour necrosis factor (TNF) were analysed. Cr supplementation neither decreases Cr kinase, superoxide production, lipoperoxidation, carbonylation, total thiol, IL-1β, NF-kb, or TNF nor alters the enzyme activity of superoxide dismutase, catalase, and glutathione peroxides in relation to the saline group, respectively (P < 0.05). There are positive correlations between Cr kinase and TBARS and TNF-α 48 hours after eccentric exercise. The present study suggests that Cr supplementation does not decrease oxidative stress and inflammation after eccentric contraction. 相似文献
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The insulin response following carbohydrate ingestion enhances creatine transport into muscle. Cinnamon extract is promoted to have insulin-like effects, therefore this study examined if creatine co-ingestion with carbohydrates or cinnamon extract improved anaerobic capacity, muscular strength, and muscular endurance. Active young males (n?=?25; 23.7?±?2.5?y) were stratified into 3 groups: (1) creatine only (CRE); (2) creatine+ 70?g carbohydrate (CHO); or (3) creatine+ 500?mg cinnamon extract (CIN), based on anaerobic capacity (peak power·kg?1) and muscular strength at baseline. Three weeks of supplementation consisted of a 5?d loading phase (20?g/d) and a 16?d maintenance phase (5?g/d). Pre- and post-supplementation measures included a 30-s Wingate and a 30-s maximal running test (on a self-propelled treadmill) for anaerobic capacity. Muscular strength was measured as the one-repetition maximum 1-RM for chest, back, quadriceps, hamstrings, and leg press. Additional sets of the number of repetitions performed at 60% 1-RM until fatigue measured muscular endurance. All three groups significantly improved Wingate relative peak power (CRE: 15.4% P?=?.004; CHO: 14.6% P?=?.004; CIN: 15.7%, P?=?.003), and muscular strength for chest (CRE: 6.6% P?P?P?P?P?P?P?=?.013; CHO: 10.0% P?=?.007; CIN: 17.3% P?P?=?.021) and CIN (15.5%, P?supplementation. These findings demonstrate that three different methods of creatine ingestion lead to similar changes in anaerobic power, strength, and endurance. 相似文献
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探讨大学生体育课中补液对血液流变学的影响。10名男性大学生实验前一周作为安静状态（ST）对照，测试3堂课，隔周进行，分别为不补液课（NS）、补凉开水课（SW）和补运动饮料课（SS）。在体育课中使用遥测心率仪监测和询问自我运动感觉状况。课后即刻取血，采用普利生Precil N6B血液流变仪测定全血黏度；普利生Precil PLS-F200B黏度计测定血浆黏度；采用毛细管法测定红细胞压积和纤维蛋白原。结果发现ST和NS比较差异均无显著性（P〉0．05）；而ST和NS与SW和SS的血浆黏度、全血还原黏度、集聚指数、刚性指数、变形指数和电泳指数比较差异显著（P〈0．05）。提示：体育课中补液改善了微循环的灌流情况，红细胞（RBC）的变形性提高，减少RBC破碎，有利于组织的氧和营养物质的供应，及代谢产物的排出，增强人体的运动和抗疲劳的能力，尤其是补运动饮料。 相似文献
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陈晓嫚 《玉溪师范学院学报》2004,20(1):14-18
民国时期 ,以吴雷川、赵紫宸、韦卓民和王明道为代表的一些基督徒知识分子对中国文化和基督教的关系进行了反思 ,虽然各有见解 ,但在基督教与文化的关系上 ,认识却是相近的 ;即认为基督教的存在不能脱离社会 ,不能脱离具体的文化背景 ,同时 ,基督教与中国文化又是互动的、相应的和连续发展的。 相似文献
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法律与道德的关系论略 总被引：1，自引：0，他引：1
程宗璋 《河北能源职业技术学院学报》2003,3(1):1-4
道德与法律的关系问题是法理学研究的重要内容。本文从分析二者的辩证关系出发，试图把道德与法律、德治与法治真正统一起来，认为道德与法律各自的缺陷要求二者相互补充、相互渗透，法治国家所依赖的法律是有道德意蕴的良法，所依赖的人是有德、有羞耻的公民。 相似文献
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There are many factors that can negatively impact a mother developing a copious milk supply and being able to exclusively breastfeed her infant. In this article, we present two case exemplars (glandular hypoplasia and breast reduction surgery) to illustrate that not all mothers may be able to develop a full milk supply, and that families should receive appropriate prenatal anticipatory education and guidance from childbirth educators and all health-care providers. Important considerations include the value of every drop of milk that the mother is able to produce, treating the milk as an important medical intervention, and developing a plan with the family for supplementation so the infant can receive adequate intake for growth. 相似文献