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71.
Extensive use of social networking sites by students and teachers makes educators and researchers to think whether they can be incorporated in instructional process to facilitate students’ learning. This survey-based study records and examines Pakistani pre-service teachers’ and teacher-educators’ current uses of Facebook, and their attitudes toward using Facebook for collaborative learning, and to see if there is a significant relationship between participants’ intensity of Facebook use and their attitude toward instructional use of Facebook. Results of the study indicated that pre-service teachers’ and teacher-educators’ motives for their current Facebook use are mainly limited for social purposes. Pre-service teachers’ use of Facebook is more intensified than the use of Facebook by teacher-educators. Further, pre-service teachers showed more positive attitudes toward using Facebook for collaborative learning than the attitudes of their faculty. Findings also indicated a positive relationship between participants’ Facebook intensity and their attitudes toward its use for collaborative learning. 相似文献
72.
Living organisms ranging from bacteria to human beings exhibit 24-h rhythms in various behaviours and physiological processes. Matching of the period of such rhythms with that of the daily environmental cycles gives an impression that they are mere passive responses to environmental changes. Here, we discuss the change in our perception about daily biological rhythms, from their identity as rhythmic phenomena occurring as passive response to environmental changes, to the biological clocks. This is the first article in a series of articles on circadian rhythms which will cover discussion on the genetic and molecular basis, circadian organization and its adaptive significance. 相似文献
73.
Ramesh C. Sharma 《Open Learning》2013,28(3):227-241
Distance education has a history of over four decades in India. There has been a vast growth in the number of learners who need education and thus also the corresponding channels of providing education. Due to the constraints of the traditional educational sector, open and distance learning has been found to be a workable alternative strategy in India. This paper traces the evolution and diversification of open learning in India by examining various factors that led to the growth and success of open learning. This system, as other systems of education, is not free from problems and a critique is provided on the various factors affecting the smooth functioning of India’s open and distance learning system. 相似文献
74.
Kyoungna Kim Priya Sharma Susan M. Land Kevin P. Furlong 《Innovative Higher Education》2013,38(3):223-235
To enhance students’ critical thinking in an undergraduate general science course, we designed and implemented active learning modules by incorporating group-based learning with authentic tasks, scaffolding, and individual reports. This study examined the levels of critical thinking students exhibited in individual reports and the students’ critical thinking level change over time. Findings indicated that students’ average critical thinking level fell in the category of “developing”, but students’ scores on individual reports revealed a statistically significant increase. The study suggested that the active learning strategies employed in the study were useful to promote student critical thinking. 相似文献
75.
Muhammad Mustafa Kamal Vishanth Weerakkody Steve Jones 《International Journal of Information Management》2009
This case focuses on enterprise application integration (EAI) in facilitating integrated electronic Government (e-Government) service delivery in a Welsh local authority. Whilst the development of a heterogeneous information technology (IT) infrastructure in the case organisation caused several integration problems, following a non-EAI approach was regarded as satisfactory by the management. The empirical findings illustrate that although the argument for EAI adoption was initially not seen as cost effective, strategically the decision not to implement EAI caused difficulties in the long term for realising integrated e-Government services. 相似文献
76.
77.
D. C. Sharma Gora Dadheech Bushra Fiza Meghna Mathur Manminder Riyat Praveen Sharma 《Indian journal of clinical biochemistry : IJCB》2009,24(2):202-204
Silver is ingested in India in the form of varak, Ayurvedic bhasm and water contained in silver utensils, but nobody knows
their effects. We have examined the effect of interaction of silver ingested in the form of varak (leaf), bhasm (ash) and
water (colloidal solution) on some essential elements (Na, K, Ca, Mg, Cu, Fe and Zn) in blood, liver, spleen and kidneys of
chicks. The results showed significant rise of silver in all the tissues and significant fall in copper in the blood. The
greatest rise was obtained in blood silver by silver sol while it had the lowest amount of silver. Iron significantly increased
in tissues but somewhat decreased in blood. Zinc content increased in all the tissues by leaf and ash but decreased by sol.
No consistent pattern was seen in case of other elements. 相似文献
78.
Suman B. Sharma Seema Garg Abhinav Veerwal Sridhar Dwivedi 《Indian journal of clinical biochemistry : IJCB》2008,23(4):334-336
Premature coronary artery disease (CAD) is common in India. We, therefore, studied oxidative stress, dyslipidemia, and high
sensitivity-C reactive protein (hs-CRP) levels in young CAD patients. Present study consisted of male CAD patients below 40
years and age and sex matched healthy controls (n=30 each). Fasting blood samples were analyzed for serum lipid profile, malondialdehyde,
antioxidant enzymes and hs-CRP levels. Dyslipidemia was observed in 90% of the young CAD patients, of which 72.2% showed increased
serum triglycerides and decreased HDL-cholesterol. LDL-cholesterol levels were high in 77.8%. Serum malondialdehyde and hs-CRP
levels were increased significantly (p<0.0001) as compared to controls. hs-CRP levels were in high risk range in all the young
patients. However, glutathione peroxidase activity was reduced significantly (p<0.05). Our data suggests that elevated hs-CRP
levels along with dyslipidemia and oxidative stress adds to the predictive value of premature CAD in young Indians. 相似文献
79.
Innovation in a product's design can have significant implications for the organization of competencies across a production network. Currently, discussions on product designs and the distribution of competencies across production networks are based on transaction costs considerations. However, such a view does not consider the transformation costs that arise when competencies across a production network are reorganized because of design changes. We explore the nature of these costs by examining the dynamics associated with Polaroid Corporation's greatest innovation, the SX-70 camera. Our longitudinal study suggests that it is not costless to redraw the boundaries of a firm. In the SX-70 camera case, Polaroid's relationships with its important stakeholders were adversely affected resulting in a deterioration of its competitive position. From this study, we suggest that it is critical to consider the transformation costs involved with radical innovations in order to gain a more complete picture of change in systemic industries. 相似文献
80.
P. Sharma M. Bose Isa Mohd S. Bagdi H. G. Raj 《Indian journal of clinical biochemistry : IJCB》2000,15(2):83-87
Genomic DNA from a clinical isolate ofMycobacterium avium-intracellulare complex was purified and cloned in PBR 322 at the tetracycline resistance site using Bam HI restriction enzyme. A 16 kb cloned
fragment was purified, radiolabeled and used as a probe. Genomic DNA isolated from nineteen MAC strains, threeM. tuberculosis strains and oneM. kansasii strain were digested with Eco RI restriction enzyme, Southern blotted and hybridized with the 16 kb cloned and labeled fragment.
Twelve MAC strains showed positive hybridization although five strains gave faint signals. Positive hybridization was noted
in two out of the threeM. tuberculosis strains, possibly due to shared DNA homology. No signal was received from the singleM. kansasii strain used in this study. 相似文献