K. S. Gayathri

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BACKGROUND Depression in old age is an important public health problem causing considerable morbidity and disability worldwide. There is a dearth of community studies from India investigating geriatric depression and its associated risk factors. This study aimed to establish the nature, prevalence and factors associated with geriatric depression in a rural(More)
BACKGROUND Different interview schedules and diagnostic criteria for dementia have contributed to differing incidence and prevalence rates. AIM This study aimed to examine the effect of different diagnostic criteria on the prevalence of dementia in the community. METHODS Some 1000 subjects (>65 years) were recruited in Kaniyambadi Block, Vellore, India,(More)
OBJECTIVE This study attempted to evaluate sensitivity, specificity and predictive values of the diagnosis of dementia made by trained community health workers. METHOD A total of 1,000 subjects over the age of 65 years were recruited for the study. The community health workers identified nine subjects as having dementia. This was compared against an(More)
Statistics reveal that globally, the aging population in different stages of dementia are struggling to cope with daily activities and are progressively becoming dependent on care takers thereby making dementia care a challenging social problem. Healthcare systems in smart environments that aim to address this growing social need require the support of(More)
BACKGROUND Many screening instruments for the diagnosis of dementia are not education and culture fair. In addition, despite good sensitivity and specificity, they result in unacceptable levels of false positives when used in the community. This study aimed to develop appropriate instruments for populations with low literacy and to consider strategies to(More)
Biometric technologies are the foundation of personal identification systems. It provides an identification based on a unique feature possessed by the individual. This paper provides a walkthrough for image acquisition, segmentation, normalization, feature extraction and matching based on the Human Iris imaging. A Canny Edge Detection scheme and a Circular(More)
Oro-pharyngeal cancer is a significant component in the global burden of cancer. A considerable proportion of oral squamous carcinomas develop from preexsiting potentially malignant disorder of the oral cavity. The term potentially malignant oral disorders (PMD) were proposed for the precancerous lesions and conditions by World Health Organization in 2007.(More)
According to the 2008 revision of the World Health Organization (WHO) classification of myeloid malignancies, philadelphia chromosome (Ph)-negative myeloproliferative neoplasms (MPNs) include clonal, hematologic disorders such as polycythemia vera, primary myelofibrosis, and essential thrombocythemia.Recent years have witnessed major advances in the(More)
Information security is concerned with the assurance of confidentiality, integrity and availability of information in all forms. Advances in the field of Information Technology also make Information Security an inseparable part of it. In biometrics, human being needs to be identified based on some characteristic physiological parameters. A wide variety of(More)
Standardization of induction of oxidative stress with Fenton mixture (FM) in isolated perfused rat kidney and the antioxidant effect of Terminalia arjuna bark in the isolated oxidatively stressed rat kidney has been evaluated. Six groups each containing eight isolated perfused rat kidneys were used for the present study and the oxidative stress was induced(More)