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11.
Shahnaz TorkZahrani Faculty member of Shahid Beheshti University of Medical Sciences 《The Journal of perinatal education》2008,17(3):51-54
With regard to childbirth, the role of every health-care system is to improve maternity care as well as the birth experience of women and their family members. Despite many efforts to improve maternity care in the Islamic Republic of Iran, the nation's childbirth care still faces a tremendous amount of unnecessary intervention and, consequently, a high rate of cesarean births. This article describes the strengths and weaknesses of Iran's maternity-care system and childbirth education in light of evidence-based practice. 相似文献
12.
丹尼尔论远程教育基础(上) 总被引：4，自引：2，他引：4
该文考查了远程教育的基础,它的发展历史和它赖以发展进化的技术。历史上有两种传统的远程教育:远程课堂教学和函授教学。它们具有不同的教育学特征和成本结构。然而,新一代技术即知识媒体,作为计算机技术、电子通信技术和认知科学汇同结合的产物,正在将远程教育的两大传统结合在一起。知识媒体将通过进一步发展远程教育对大学的革新作出重大贡献。 相似文献
13.
Abstract We investigated the relationship between skill qualities and contact injury risk in professional rugby league players. Sixty-six professional rugby league players aged 23?±?4 years (mean?±?s) participated in this three-year prospective study. Players underwent assessments of tackling proficiency, dual-task draw-and-pass proficiency, reactive agility, pattern recall, and pattern prediction. The frailty model was applied to calculate the adjusted risk ratios of injury. When the players' age and playing position were adjusted in the frailty model, the risk ratios showed that reactive agility was a predictor for the risk of injury. Players with reactive agility decision times of >80?ms had a lower incidence (relative risk?=?0.68, 95% CI 0.47-0.98, P?=?0.04) of injuries than players with reactive agility decision times of ≤80 ms. Although there was no relationship between injury and the majority of skill qualities (P?=?0.47-0.93), players with poor reactive agility performances (specifically longer decision times) had a lower risk of injury, suggesting that poor perceptual skill is protective against contact injuries in professional rugby league players. These players might inadvertently avoid the heavy collisions that result in injury, or at best result in partial contact that does not result in exposure to the full force of a tackle. 相似文献
14.
The present study was carried out to evaluate the occurrence of association between homocysteine, folic acid and vitamin B(12) in patients with preeclampsia. Fifty preeclamptic patients from gynecology ward were studied for estimation of serum homocysteine, folic acid and vitamin B(12) over a period of October 2007 to June 2010. Serum homocysteine and folic acid, and vitamin B(12) were determined by means of Immulite 1000 analyzer. The statistical analysis of study group of preeclampsia compared with normotensive control group, showed significant alterations in serum homocysteine, folic acid and vitamin B(12) concentrations in preeclampsia. Inverse association between serum homocysteine and folic acid, and vitamin B(12) levels were observed in preeclampsia. The present study found hyperhomocysteinemia and deficiency of folic acid and vitamin B(12) along with increased blood pressure as a risk factor for cardiovascular disease (CVD) in preeclampsia. 相似文献
15.
Shahid Yusuf 《Research Policy》2008,37(8):1167-1174
The forging of links between universities and businesses is viewed increasingly as an important means of stimulating knowledge development that can lead to commercial innovation. Achieving effective knowledge exchange, however, requires the midwifery of different kinds of intermediaries often working in concert. Active and many faceted intermediation for the purposes of knowledge sharing and commercialization is essential when the knowledge is tacit or uncodified. The papers in this special section describe and discuss various intermediary mechanisms that assist universities in transferring knowledge and aiding the process of innovation. No single recipe is clearly superior but examining a variety of experiences helps to highlight the strengths of specific intermediary processes and to identify some of their shortcomings. 相似文献
16.
Shahid Iqbal Mohammed Narendra Subhash Salunkhe Kishor Sukhlal Vishwakarma Vijay Laxminarayan Maheshwari 《Indian journal of clinical biochemistry : IJCB》2017,32(2):153-162
The present study was undertaken to evaluate antidiabetic and antioxidant activities of Cayratia trifolia root extract against streptozotocin induced diabetes in experimental rats to scientifically validate its use against diabetes in some parts of India. Ethanolic extract, showing the highest activity in in vitro experiments, was prepared in saline and administered orally to streptozotocin induced albino Wistar diabetic rats for 21 days. Biochemical parameters liver and muscles glycogen and in vivo antioxidant activity in normal, diabetic control, standard (metformin) and treated animals were determined and compared. Attempt was made to isolate, purify and characterize one of the major secondary metabolites in extract by range of chromatographic and spectroscopic techniques. Treatment of streptozotocin induced diabetic rats with ethanolic root extract (500 mg/kg) caused significant (P < 0.01) reduction in blood glucose (312–178 mg/dL), increase in body weight (181–219 g) and serum insulin (1.28–2.26 IU/dL). It also maintained lipid profile and tests of liver and kidney functions within normal range as compared to diabetic control rats and almost at par with standard drug metformin. The oxidative stress induced decline in glutathione and catalase in liver and kidney tissues showed recovery nearly to normal level as a function of treatment. The GC–MS profile of the extract showed relatively high concentration of β-sitosterol which was characterized by different spectroscopic and chromatographic techniques. The result scientifically and comprehensively validate the reported use of roots of this indigenous plant against diabetes. A strong antioxidant activity of the ethanolic root extract suitably compliments the antidiabetic effect. 相似文献