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Srinivas, D.
- Antibacterial Activity of Paddy Fields Cyanobacteria
Abstract Views :161 |
PDF Views:2
Authors
Affiliations
1 Department of Botany, Kakatiya University, Warangal-506 009, A.P., IN
2 Department of Chemistry, Kakatiya University, Warangal-506 009, A.P., IN
1 Department of Botany, Kakatiya University, Warangal-506 009, A.P., IN
2 Department of Chemistry, Kakatiya University, Warangal-506 009, A.P., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 3 (2008), Pagination: 447-450Abstract
Antibacterial activity of some heterocystous cyanobacteria from paddy fields in Warangal district of Andhra Pradesh was studied. Soil samples were collected from various regions of paddy fields of Warangal and cyanobacteria were isolated. Supernatants and methanolic extracts from biomass of 42 strains of cyanobacteria were isolated and screened against four strains of bacteria. Methanolic extracts and culture supernatants of 6 strains of cyanobacteria exhibited significant antibacterial effect. According to these results, it is concluded that Anabaena and Stegonema species have more potential for producing antimicrobial substance than other strains.Keywords
Antibacterial Activity, Antibiotics, Paddy Fields, Cyanobacteria, Bioactive Compounds, Anabaena Sp., Stegonema Sp..Full Text
- Digital Seismic Network:To Map Himalayan Orogen and Seismic Hazard
Abstract Views :272 |
PDF Views:72
Authors
D. Srinagesh
1,
Prantik Mandal
1,
R. Vijaya Raghavan
1,
Sandeep Gupta
1,
G. Suresh
1,
D. Srinivas
1,
Satish Saha
1,
M. Sekhar
1,
K. Sivaram
1,
Sudesh Kumar
1,
P. Solomon Raju
1,
A. N. S. Sarma
1,
Y. V. V. S. B. Murthy
1,
N. K. Borah
1,
B. Naresh
1,
B. N. V. Prasad
1,
V. M. Tiwari
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 116, No 4 (2019), Pagination: 518-519Abstract
According to the Gutenberg–Richter law1, at least one earthquake of magnitude greater than 7 occurs every month along the seismically active belts in the world. Earthquakes are the manifestation of fault slip at depths, thus, there is no direct method to measure or observe them. However, seismometers can record ground velocity or acceleration caused by the occurrence of an earthquake when a fault slip occurs at depth. Therefore, setting up a seismic network is inevitable to understand the physics of earthquake processes, thereby, mitigating earthquake hazard.Full Text
References
- Gutenberg, B. and Richter, C. F., Ann. Geofis., 1956, 9, 1–15.
- Ambraseys, N. N. and Jackson, D., Curr. Sci., 2003, 84, 570–582.
- Gupta, H. and Gahalaut, V. K., Gondwana Res., 2014, 25, 204–213.
- Ader, T. et al., J. Geophys. Res., 2012, 117, 23–40.
- Bilham, R., Nature Geosci., 2015, 8, 582– 584.
- Ground Motion Prediction Equation For Earthquakes Along The Western Himalayan Arc
Abstract Views :281 |
PDF Views:83
Authors
Affiliations
1 CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, IN
2 Universidad Nacional Autónoma de México. Instituto de Geofísica, Circuito de la Investigación s/n, Ciudad Universitaria, Coyoacán, Mexico City 04510, MX
3 Departamento de Materiales, Universidad Autónoma Metropolitana, Avenida San Pablo 180, Reynosa Tamaulipas, Azcapotzalco, Mexico City 02200, MX
4 National Centre for Seismology, India, Mausam Bhavan Complex, Lodi Road, New Delhi 110 003, IN
1 CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500 007, IN
2 Universidad Nacional Autónoma de México. Instituto de Geofísica, Circuito de la Investigación s/n, Ciudad Universitaria, Coyoacán, Mexico City 04510, MX
3 Departamento de Materiales, Universidad Autónoma Metropolitana, Avenida San Pablo 180, Reynosa Tamaulipas, Azcapotzalco, Mexico City 02200, MX
4 National Centre for Seismology, India, Mausam Bhavan Complex, Lodi Road, New Delhi 110 003, IN
Source
Current Science, Vol 120, No 6 (2021), Pagination: 1074-1082Abstract
A critical element in seismic hazard estimation is the ground motion prediction equation (GMPE) which relates expected seismic intensity at a point from an earthquake of a given magnitude and location. Presently available GMPEs for plate interface thrust earthquakes along the Himalayan arc suffer from limited number of strong motion recordings used in their derivation. In this study we use a larger dataset, including recordings from the 2015 Gorhka, Nepal earthquake (Mw 7.9) and some of its larger aftershocks, to derive GMPE for earthquakes along the Western Himalayan arc. The proposed GMPE should give more reliable estimation of ground motion parameters at hard sites along the arc and in Peninsular India, and at soft sites in the Indo-Gangetic Plains.Keywords
Active Tectonics, Ground Motion Prediction Equation, Plate Interface Earthquake, Seismic Hazard.Full Text
References
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