To discuss the effect of DNA damage and its mechanism on liver cells induced by exercise fatigue. 24 male Kunming mice were randomized into four groups: Control group(CG)and exercise group(EG)was subdivided to three s...
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ISBN:
(纸本)9783642247712
To discuss the effect of DNA damage and its mechanism on liver cells induced by exercise fatigue. 24 male Kunming mice were randomized into four groups: Control group(CG)and exercise group(EG)was subdivided to three subgroups respectively indicating as 0EG, 24 EG, 48EG(N=6/group). We built up the exercise fatigue model for mice through the protocol of repeated exhaustive treadmill running and use the single cell gel electrophoresis(SCGE)to detect the DNA damage of liver cells in different groups. We also measured the changes of SOD, GSH and MDA on liver tissue. Our studies showed that DNA damage of 0EG and 24 EG were significantly higher than CG(P<0.001). DNA damage reached the highest at 24 h and dropped to the pre-exercise level at 48h(P>0.05). The activity of SOD and the content of MDA on liver tissue of 0EG and 24 EG significantly increased compared with CG(P<0.001). Those changes in 24 EG significantly decreased compared with 0EG(P<0.05). GSH concentration in 0EG reduced significantly compared with the control group(P<0.001). Either the 24 EG or 48 EG of GSH did not change obviously compared with CG(P > 0.05). Those results lead to conclusions that exercise fatigue induces the oxidative injury and DNA damage on liver cells which exists some characters in different time after exercise. Exercise induced oxidative stress is one of the mechanism of DNA damage on liver cells.
This paper deeply analyzed the main training problem of the current applied practical talents in information specialty and discussed strengthening cooperation with IT enterprise can promote information specialty's...
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ISBN:
(纸本)9783642247712
This paper deeply analyzed the main training problem of the current applied practical talents in information specialty and discussed strengthening cooperation with IT enterprise can promote information specialty's practical teaching reformation. Cooperation with IT enterprise also can improve the effectiveness of practical teaching and college student's professional standards. It explored a new way to improve the innovation capability and overall professional quality of the information specialty college students.
One of the disadvantages in language teaching in our country is that teachers patiently deliver the language points thoroughly and deeply. Under such circumstances, the more grammatical, the easier to arise misunderst...
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ISBN:
(纸本)9783642255373
One of the disadvantages in language teaching in our country is that teachers patiently deliver the language points thoroughly and deeply. Under such circumstances, the more grammatical, the easier to arise misunderstanding. This paper analyses the relationship between language and culture in foreign language teaching. The aim of foreign language teaching is ultimately to train the practical use of language;therefore English teaching should lay emphasis on enlarging the students' culture view, strengthening the sensitivity and adaptability to cultural differences and improving their cross-cultured communication abilities.
Taking the high integration, high power functions of the advantages of AT89C51 single-chip machine(SCM), wireless-date acquisition system was designed and performed based on the kernel of AT89C51 SCM. The designed sys...
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ISBN:
(纸本)9783642255373
Taking the high integration, high power functions of the advantages of AT89C51 single-chip machine(SCM), wireless-date acquisition system was designed and performed based on the kernel of AT89C51 SCM. The designed system was small and cheap. The tests suggested that the system worked in high speed and precision, and it was installed easily.
In order to improve the level of the university education, the focus of educational reform has been on the specialized courses in China's universities and colleges. Now, the study model of specialized courses is d...
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ISBN:
(纸本)9783642247712
In order to improve the level of the university education, the focus of educational reform has been on the specialized courses in China's universities and colleges. Now, the study model of specialized courses is discussed using the PDCA(plan-do-check-act) cycle. It provides the feasibility and the concrete applications using the PDCA cycle, and indicates that it a good method to study the specialized cousese. Although it is a management approach being successfully applied in the quality improvement, it can strengthen the awareness and be interested of college students.
At present our country web cam scale,the wide band web cam counts,the national top domain name registration to measure three targets to occupy the world first,the network becomes the main platform which the people wor...
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ISBN:
(纸本)9783642251870
At present our country web cam scale,the wide band web cam counts,the national top domain name registration to measure three targets to occupy the world first,the network becomes the main platform which the people work,is also the important part which many people live,does must accept and adapt this kind of work and the life style for the government, "the network spokesperson" is the government adapts the information age request. "The network spokesperson" is the inevitable result which the electronic government *** the government fulfills the function the way from the reality to hypothesized extending. "The network spokesperson" does lasts a generation of product,it must consummate the system comes to guarantee and the *** clear about its legitimate status,the standard "the network spokesperson" the working routine,is clear about its function. "The network spokesperson" is connects the government and public's link,is enhances the government to serve the efficiency the new role,had the science standard system's safeguard to be able to cause its health the development.
Mo Puntainous outdoor sports are much favored by young sports fan in our country. However, this kind of sports is high-risky and contains many unpredictable risks. We call the incident happened in the course of mounta...
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ISBN:
(纸本)9783642255373
Mo Puntainous outdoor sports are much favored by young sports fan in our country. However, this kind of sports is high-risky and contains many unpredictable risks. We call the incident happened in the course of mountainous outdoor sports "mountain-climbing incident. This thesis intends to analyze the incidents occurred during the recent ten years by adopting approaches of cause-result theory and statistics, classification, case analysis, with the aim to stress the importance of safety management by way of incident alarms. The conclusions are: mountainous outdoor sports are high-risky items and it is essential to strengthen safety management of these items;currently, the fundamental causes for the greater death toll are that an over rapidly increasing number of participants join in mountainous outdoor sports and at the same time they lack adequate knowledge and training concerned;the most major cause of the death toll is the management errors;laying emphasis on safety management can promote a healthy and orderly development in mountainous outdoor sports.
For the existing problems in which the link of traditional manual generating paper in the education system, based on J2 EE technology, an open, multi-level intelligent automatic generating papers function was designed...
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ISBN:
(纸本)9783642255373
For the existing problems in which the link of traditional manual generating paper in the education system, based on J2 EE technology, an open, multi-level intelligent automatic generating papers function was designed and implemented, by improving the algorithms of commonly used automatic generating paper. A breakthrough in the aspect of the design structure' randomness of computer generating papers was produced, and the problem of lacking the intelligent generating paper in the traditional manual generating paper methods was solved. This not only providing a great convenience for teachers, but also achieving information management between item pool and papers and the sharing of teaching resources. As a part and parcel of the process of the education informatization, it accelerated the pace marching towards information education.
This paper, combining with the "5.12" Wenchuan earthquake damage data, analysis the destruction and the cause of the destruction of the frame structure folded plate staircase stair tread in the earthquake. A...
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ISBN:
(纸本)9783642255373
This paper, combining with the "5.12" Wenchuan earthquake damage data, analysis the destruction and the cause of the destruction of the frame structure folded plate staircase stair tread in the earthquake. And on this basis, this paper, taking a 5-layer framework structure office building as example and using the PMSAP finite element analysis software, establishes the spatial model with a folded plate stair components included and does the quantitative analysis, which in the end results in the variation of internal forces of the variety of stair treads under earthquake size and the changing law, and then the traditional model results is compared with the new data. Finally, this paper comes up with the design strategies for new construction and the repair and reinforcement of the reinforced concrete frame structure folded plate stair frame in the future.
Gesar was more an incarnation of the national spirit than a legend of Tibetans, or a real king, who had united the separated Tibetan areas by force and was piously worshiped by even contemporary Tibetans. Whereas, Gen...
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ISBN:
(纸本)9783642255373
Gesar was more an incarnation of the national spirit than a legend of Tibetans, or a real king, who had united the separated Tibetan areas by force and was piously worshiped by even contemporary Tibetans. Whereas, Gendun Choepbel was a real controversial lama with abundant knowledge of Buddhism, who had attempted to make some renovations to the old political order and Buddhism practice, for which he was sent into prison for three years. Gesar is a symbol of Tibetan traditional culture, who nurtures Tibetans from his time till present, while Gendun Choepbel represented a modern ideological trend toward humanism. His fate was a reflection of the modern intellectuals' fates at the first half of the twentieth century. Comparing their similarities and differences could help manifest the inevitable social development laws in both material and spiritual worlds with time elapsing.
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