- M. C. Ramadevi
- S. Seetha
- Dipankar Bhattacharya
- B. T. Ravishankar
- N. Sitaramamurthy
- G. Meena
- M. Ramakrishna Sharma
- Ravi Kulkarni
- V. Chandra Babu
- Kumar
- Brajpal Singh
- Anand Jain
- Reena Yadav
- B. N. Ashoka
- Anil Agarwal
- K. Balaji
- Manoj Kumar
- Prashanth Kulshresta
- Pankaj Agarwal
- Mathew Sebastian
- V. Radhakrishna
- A. Tyagi
- S. Narendranath
- Koushal Vadodariya
- G. Balaji
- Neeraj Satya
- Akash Shetty
- H. N. Suresha Kumar
- Netra S. Pillai
- S. Tadepalli
- Venkata Raghavendra
- P. Sreekumar
- N. Valarmathi
- Sreedevi Dharman
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Vaishali, S.
- Scanning Sky Monitor On-Board AstroSat
Authors
1 Space Astronomy Group, SSIF, ISITE Campus, Karthik Nagar, Outer Ring Road, ISRO Satellite Centre, Bengaluru 560 037, IN
2 Indian Space Research Organisation Headquarters, Department of Space, Antariksh Bhavan, New BEL Road, Bengaluru 560 231, IN
3 Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, IN
4 Spacecraft Mechanisms Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
5 Control and Digital Electronics Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
6 Vikram Sarabhai Space Center, Thiruvananthapuram 695 022, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 599-601Abstract
Scanning Sky Monitor (SSM) on-board AstroSat is a wide-field imager to monitor the X-ray sky in the energy band 2.5-10 keV. The primary science objective of SSM is to detect and locate transient X-ray sources in the sky. Once detected the information is to be provided to the astronomical community for follow-up observations to do a more detailed study of the source. Long-term monitoring of known X-ray transient sources is also one of the science objectives of SSM. The instrument constitutes three units of 1D positionsensitive propotional counters with coded masks on each, all three mounted on a platform capable of rotation to scan about 50% of the sky in one full rotation. The angular resolution of each unit in SSM is 12' x 2.5°. Sensitivity of SSM is ~30 milliCrab at 3 sigma in 10 min integration time. This article briefly discusses the instrument and a few early results since the launch of AstroSat.Keywords
AstroSat, Crab, Scanning Sky Monitor, X-Ray Transient Sources.References
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- Chandrayaan-2 Large Area Soft X-ray Spectrometer
Authors
1 U.R. Rao Satellite Centre, ISRO, Bengaluru 560 017, IN
2 Space Science Programme Office, ISRO Head Quarters, Bengaluru 560 017, IN
Source
Current Science, Vol 118, No 2 (2020), Pagination: 219-225Abstract
Chandrayaan-2 Large Area Soft X-ray Spectrometer (CLASS) is an X-ray fluorescence spectrometer experiment aimed at mapping the abundances of major rock-forming elements on the lunar surface. The instrument consists of swept charge devices with a passive collimator, visible light blocking filters and signal processing electronics designed and built at U.R. Rao Satellite Centre, Indian Space Research Organisation. CLASS will be the largest collecting area spectrometer flown to the Moon, and thus is expected to map the abundances of lunar elements with a higher sensitivity than ever at soft X-ray energies.Keywords
Moon, Rock-forming Elements, Spectrometer, X-ray Fluorescence.References
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- Analysis of Dermatoglyphic Pattern in Potentially Malignant Disorder and Oral Carcinoma Patients
Authors
1 Graduate Student, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, IN
2 Reader, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, IN
Source
Indian Journal of Public Health Research & Development, Vol 11, No 1 (2020), Pagination: 721-725Abstract
Aim: To assess the association between dermatoglyphic pattern and potentially malignant disorders and oral squamous cell carcinoma patients which might help in predicting the occurrence of these two disorders.
Background: Dermatoglyphics are the dermal ridge configuration on the digits, palms and soles. They are genetically determined and influenced by environmental forces that are operating before birth. Several studies have shown association between dermatoglyphics and different types of cancer. Hence this study was undertaken to determine whether specific dermatoglyphic patterns exists which help in predicting the occurrence of oral squamous cell carcinoma (OSCC) and oral potentially malignant disorders.
Materials and Method: After explaining about the study to the subjects, an informed consent will be obtained. A detailed history with thorough clinical examination will be done and findings will be recorded . The clinically diagnosed cases of potentially malignant disorders and oral squamous cell carcinoma will be confirmed histopathologically and will be included in the study. Finger and palm prints will be collected using ink method from 10 subjects with oral squamous cell carcinoma, 15 subjects with potentially malignant disorders and 25 healthy controls and will be evaluated qualitatively and quantitatively.
Results: Arches and loops were more frequent in cases than in controls whereas whorls were more frequent in control group. 80% of the patients with potentially malignant disorders have loop pattern, 40% of the patients has arches and 30% have whorls. 50% of the patients with oral squamous cell carcinoma have loop pattern, 30% have arch pattern and 20% have whorl pattern. 68% of the control group have whorl pattern, 20% have arch pattern and 12% have loop pattern.
Conclusion: This study concluded that dermatoglyphic patterns may have a role in identifying individuals either with or at risk for developing potentially malignant disorders like leukoplakia, oral submucous fibrosis, lichen planus etc and oral squamous cell carcinoma. Hence it can be used to identify high risk group, so that early primary and secondary preventive measures can be instituted in order to prevent the occurrence of these lesions.