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排序方式: 共有687条查询结果,搜索用时 15 毫秒
591.
将电子游戏融入到教育中,是当前数字化学习领域的热门话题.手机、平板电脑等无线终端的普及,为数字化学习的新分支——移动学习的开展奠定了物质基础.该文详细地阐述了移动学习游戏——"加法战机队"的整个设计过程,包含游戏的创意、需求分析、总体设计、详细设计等,然后用相关开发工具完成了游戏的实现. 相似文献
592.
Aqueous root extract ofAchyranthes aspera was incorporated in the experimental diet ofLabeo rohita (rohu). Control diet was prepared without root extract. Feeding of fishes with experimental diet has significantly (p<0.05)
enhanced the serum anti-proteases level than fishes fed with control diet. 相似文献
593.
G. M. Rao P Sumita M Roshni M. N. Ashtagimatt 《Indian journal of clinical biochemistry : IJCB》2005,20(1):198-200
It has been suggested that antioxidant systems are impaired in pregnancy induced hypertension and hence patients are exposed
to oxidative stress. In order to investigate the relationship between lipid peroxidation and certain antioxidant parameters
in blood of pregnancy induced hypertension (PIH) cases, 25 normotensive and 23 PIH samples were studied. In the present study,
thiobarbituric acid reactive substances showed a tendency to increase, however the increase remained statistically insignificant.
Plasma ascorbic acid level remained unaltered and Vitamin E showed a tendency to increase in the study group. The findings
implicate oxidative stress in the disease and cite the biochemical rationale for clinical trials of antioxidants to prevent
and treat pregnancy induced hypertension. 相似文献
594.
挫折是生活中的一部分。论文探讨了独立学院学生常见的心理挫折,如学习上的挫折、人际交往上的挫折、就业挫折、经济挫折和人格完善挫折等。针对以上挫折提出了相应的挫折应对策略,具体包括帮助学生树立正确挫折观、加强心理健康教育、大力开展社会实践活动、引导学生调整自身抱负水平、引导学生运用适当的宣泄方法以及建立一支高素质的辅导员队伍等。期望通过这些策略能使大学生耐挫力获得提高,使其心理品质得到优化。 相似文献
595.
Maternal and fetal indicators of oxidative stress during intrauterine growth retardation (IUGR) 总被引:1,自引:0,他引:1
Ullas Kamath Guruprasad Rao Shobha U Kamath Lavanya Rai 《Indian journal of clinical biochemistry : IJCB》2006,21(1):111-115
The present study demonstrates the possibility of increased lipid peroxidation and protein oxidation in both maternal and
fetal erythrocytes as markers of oxygen radical activity during intrauterine growth retardation. The erythrocyte MDA levels
were significantly elevated in mothers of IUGR babies when compared to controls (p<0.01). The endogenous protein damage due
to oxidative stress was significantly higher in IUGR mothers when compared to controls (p<0.05). Similarly the proteolytic
activity in erythrocyte lysates against oxidatively damaged hemoglobin was significantly increased in mothers of IUGR babies
compared to controls (p<0.001).
In fetuses born with IUGR, both lipid peroxidation and proteolytic activity were significantly increased when compared to
normal newborns (p<0.01).
The result of this study indicates that oxidative stress was induced both in IUGR babies and their mothers which is manifested
as increased lipid peroxidation and protein oxidant damage. 相似文献
596.
Data from two bibliographic databases i.e. COMPENDEX and INSPEC have been collected on the broad subject software and related topics. The titles of the journals were extracted from the database. The impact factors of the titles were also collected in order to study the distribution of impact factors. An attempt has been made to identify a suitable model to describe a distribution of impact factors. It has been observed that a Gamma distribution fits the observed data very well with one of the parameters as mean of the distribution and other parameter as 1. Further it has been observed that the researchers are now publishing their articles in high impact factor journals. 相似文献
597.
Effect of pyridoxine (Vitamin-B6) supplementation on calciuria and oxaluria levels of 20 normal healthy persons and 17 urinary stone patients has been studied.
Mean 24 hr urinary calcium and oxalate levels of controls (healthy persons) and stone patients were estimated in presupplementation
period and at every 20 days interval during supplementation. Stone patients were divided into two groups viz., mild hyperoxaluriacs
and moderate hyperoxaluriacs, based on their pre-supplementation (base line) oxaluria levels. 60 days of pyridoxine supplementation,
at the rate of 10 mg/day, resulted in a significant decrease (p<0.01 for mild hyperoxaluriacs and p<0.001 for moderate hyperoxaluriacs)
in mean 24 hr urinary oxalate levels of urinary stone patients. The corresponding decrement in mean oxaluria level of controls
was, however, only mild. The decrease of mean calciuria level of controls as well as stone patients, upon pyridoxine supplementation,
were also found to be only mild and not significant. Utility of pyridoxine therapy in oxalate urolithiasis has been discussed
in the light of results. 相似文献
598.
A general three-dimensional solution is presented for statics and dynamics of plates, homogeneous or laminated, of orthotropic materials. The solution is in series form. Using parts of the general solution a variety of problems, especially of rectangular configurations, can be solved. As Mindlin's approximate analysis for vibration of thick plates is often adequate for specific practical purposes, a general solution for Mindlin's analysis is also given. 相似文献
599.
This study reports on the goal structures of one rural and one urban Grade 11 class in China, based on classroom observations and teacher and student interviews. Classroom observations, conducted over a 6‐month period, focused on physical settings and classroom activities. In each class, seven students and the homeroom teacher were interviewed to discern their views about classroom goal structures. Results indicated that although high scores and rankings on tests were admired, students were also encouraged to master knowledge, exert effort, develop good habits, and learn from their errors, reflecting the coexistence of both mastery and performance goals. Comparisons revealed that the rural class had a predominantly examination‐oriented focus whereas the urban class did not place as great importance on examination outcomes. Implications of the findings for research and practices are discussed. 相似文献
600.
E T Bell, the famous author of ‘Men of Mathematics’, has described mathematics as the ‘Queen of Arts and Servant of Science’. What he meant is that mathematics serves science by entering into the picture as soon as a proper mathematical model is set up by the scientist, and then after a purely mathematical analysis of the model, the final mathematical step is interpreted scientifically. The purpose of the present article is to convince the readers that sometimes the roles of science and mathematics are reversed, and a mathematical problem is interpreted as a physics problem; the laws of physics are utilized for a physical analysis, and the final result of the physical analysis is interpreted mathematically. We shall illustrate this by means of few examples. 相似文献