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Normal and alloxan induced diabetic guinea pigs were kept on whole seed diet of green gram for 4 weeks. Serum total lipids were found to be significantly decreased in both normal and diabetic guinea pigs (P <0.001)—Both free and esterified fractions of cholesterol were found to be lowered significantly in diabetic animals (P<0.05; <0.01, respectively), whereas only esterified fraction was reduced significantly in case of normals (P<0.05). Significant lowering of triglyceride levels (P<0.01) was also noticed in both normal as well as diabetic guinea pigs while phospholipids remained almost unaffected. Green gram feeding decreased the total cholesterol / phospholipid ratio from 0.630 to 0.625 in normal and from 1.039 to 0.850 in diabetic guinea pigs indicating its antiatherogenic nature.  相似文献   
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Purpose: The key informants in a village setup were studied to understand the existing social and knowledge systems of farmers, their structure, and relationships between different actors. The purpose is to identify different channels of information and use them as a means to disseminate agricultural technologies and related information to farmers.

Design: We use the network map analysis in a case study approach as a tool to demonstrate the linkages between the key actors and stakeholders in the information network of farmers.

Findings: The government institutions are well networked among themselves but have limited interactions with non-government sources. Farmers in Bihar have strong linkages with few network actors, who are important nodes in the social knowledge network. The study showed heterogeneity and complexity in the network shape and structure across different districts.

Practical Implications: Knowledge networks and social networks are the drivers of information sharing and play a significant role in the diffusion of agricultural technology and related knowledge. Understanding these networks provides a platform for introducing the agricultural technologies and getting connected to a wider group of farming communities.

Theoretical Implications: The study shows that the network is formed by different actors and their role determine the nature and shape of the network. Knowledge of this heterogeneity is important in designing or revamping agricultural information systems.

Originality: Information and knowledge networks are least explored in the agricultural information dissemination process. Some studies have shown the role of actors and social networks, but this study uniquely explores and presents the heterogeneity of these networks.  相似文献   

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The 2009 Nobel Prize in Physiology or Medicine was jointly awarded to three scientists — Elizabeth H Blackburn, Carol W Greider and Jack W Szostak — for their work during early 1980s and 1990s which helped unravel the molecular mechanisms of protection of chromosomal ends by telomeres and the enzyme telomerase. Their discovery has had major implications in the fields of ageing and cancer research. Blackburn and Greider are the ninth and tenth women scientist, to get this award in physiology or medicine and this is the first time that two women scientists have shared the prize.  相似文献   
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Educational technology research and development - This paper explores technology integration and the role of teacher beliefs in this integration to assess a ‘smart-class’ initiative...  相似文献   
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Pluto is a celestial object that had caught the imagination of increasingly ‘sky-aware’ people all around the world, perhaps due to the inspiring story of its discovery by a young amateur astronomer. It was celebrated as the ninth planet of the solar system for decades. A question mark hung over its nomenclature as a planet from the time of the discovery of its moon Charon, when a good estimate of its very small mass in comparison with other planets was obtained. The discovery of UB 313, a body in the outer regions of the solar system that was more massive than Pluto, magnified this question mark and compelled the International Astronomical Union to review the definition of the word ‘Planet’. A new and physical definition was given to this word and Pluto was categorized as a dwarf planet. The beauty of this physical definition of a planet is something that would definitely have been appreciated by Clyde Tombaugh — who once made this beautifully simple statement about Pluto, while its status was being questioned — “It is there, whatever it is”. Yes, whatever it is, Pluto is one celestial object that is somehow very endearing to everyone around the world and is also an object whose studies are compelling certain paradigm shifts in our understanding of the structure and evolution of the solar system. N Rathnasree is the Director, Nehru Planetarium, New Delhi. She is deeply interested in archeo-astronomical field work related to the history of astronomy in India. She is currently working towards a complete observational calibration of the masonry astronomical instruments of the Jantar Mantar observatories at Delhi and Jaipur. Anurag Garg is working as Educator at the Nehru Planetarium New Delhi. He has a very keen interest in observational astronomy as well as theoretical astrophysics.  相似文献   
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Anurag Garg 《Resonance》2010,15(2):170-175
Using low cost apparatus to perform astrophysical research at school level.  相似文献   
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