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Marimuthu, P.
- Impact of Internet on Scholarly Communications:A Survey of Aerospace Scientists and Engineers in Bangalore
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Authors
Affiliations
1 KTMD, National Aerospace Laboratories (CSIR); Bangalore, IN
2 DOS, LIS, University of Mysore, IN
3 Dept. of Biostatistics, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bangalore, IN
4 CTFD, National Aerospace Laboratories (CSIR), Bangalore, IN
1 KTMD, National Aerospace Laboratories (CSIR); Bangalore, IN
2 DOS, LIS, University of Mysore, IN
3 Dept. of Biostatistics, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bangalore, IN
4 CTFD, National Aerospace Laboratories (CSIR), Bangalore, IN
Source
Information Studies, Vol 17, No 2 (2011), Pagination: 65-87Abstract
The coming of the Internet has transformed the way scientific communication among the scientists and engineers in general across the world and more specifically amongst the aerospace scientists and engineers. The Net has changed the way scientists look for information, the various means by which they get their required information from the Internet and most importantly how much they depend on the Internet for their scientific pursuit. In this information age, it is practically impossible for a scientist or engineer to carry out his/her research work without using network and Internet technologies. They use these electronic tools for accessing electronic information resources in the form of e-journals related to their field of specialization right at their desktops through their organization's networking facilities. We highlight the role of the Net in spreading scholarly scientific communication. The major findings of this survey study from a total of 583 questionnaires distributed to selected Indian aerospace organizations in Bangalore reveals that: (a) The most popular place of use of the Internet amongst the aerospace scientists and engineers is 'Right at their Desktop', followed by 'Access from their Homes'. Access from 'Cyber Caf6', 'The Organization's Library', 'Access from other Departments' and 'Access from another Library' occupy lesser priorities, (b) The overall average monthly usage of the Internet gets a mean value of 84.19 which implies that on an average the selected aerospace organizations are familiar and have had exposure to the Net for at least 7.01 years, (c) The main purpose of using the Internet amongst this 'niche' aerospace engineering community happens to be for 'Sending and receiving e-mails', followed by 'Collecting general information' and 'Accessing e-Resources (e-Joumals, e-Books and e- Databases)', and 'Download software for scientific research', (d) The main motivation factors to use the Net amongst this community are 'To update self-knowledge in the area of research' followed by 'User-friendly search engines' and 'Easy access to resources'. (e) The most frequently used search engines are 'Google', followed by 'Yahoo' and 'Alta Vista', (f) The most popular scientific web sites accessed and used are 'Google Scholar', followed by 'Google Book' and 'SCIRUS'. (g) The biggest bottleneck faced by these scientists and engineers while accessing the Net are 'Very poor Internet connectivity (low speed)' followed by 'Getting irrelevant information' and 'Internet charges are high'.Keywords
Internet, Scholarly Communication, Aerospace Engineers and Scientists, e-Joumals, Search Engines, Scientific Web Sites, Bottlenecks in Internet Access.References
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- Biology and Nutritional Indices of the Fall Army Worm Spodoptera Frugiperda (J E Smith) on Maize
Abstract Views :110 |
PDF Views:70
Authors
P. S. Rajisha
1,
N. Muthukrishnan
1,
S. Jeyarajan Nelson
1,
R. Jerlin
2,
P. Marimuthu
3,
R. Karthikeyan
4
Affiliations
1 Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
2 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
3 Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
4 Department of Farm Management, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
1 Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
2 Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
3 Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
4 Department of Farm Management, Tamil Nadu Agricultural University, Coimbatore 641003, Tamil Nadu, IN
Source
Indian Journal of Entomology, Vol 84, No 1 (2022), Pagination: 92-96Abstract
Lifecycle, progressive growth of larval head capsule, and nutritional indices of Spodoptera frugiperda (J E Smith) on maize (Co-H6) were studied at the Department of Agricultural Entomology, TNAU, Coimbatore during 2018-19. Incubation, total larval, and pupal periods were observed as 2-3, 13-20, and 7-11 days, respectively. The total lifecycle of male and female was 33-46 and 35-47, respectively. The head width was observed to be 0.34, 0.60, 0.89, 1.32, 1.86, and 2.36 mm from the first to the sixth instars, respectively. Linear regression analysis showed a significant relationship between larval instars and head capsule width (R2=0.0979); and geometric progression ratio was observed as 1.48. Nutritional indices were also studied for the third and fifth instar on the maize plants. Consumption index (CI) and approximate digestibility (AD) increased with larval age, while efficiency of conversion of ingested food (ECI) and efficiency of conversion of digested food (ECD) were inversely related to age. These values for the third and fifth instar were- CI= 2.30 and 2.31; AD=35.7 and 40.29; ECI=18.33 and 12.21; ECD=51.33 and 30.3, respectively.Keywords
Spodoptera frugiperda, maize, fecundity, egg, larval, pupal periods, lifecycle, stages, larval instars, head capsule width, Dyar’s law, nutritional indices, consumption, digestibility, conversionReferences
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