V Manjula | PubMed Health

PubMed2005

Flow past an impulsively started circular cylinder using a higher-order semicompact scheme.

In the present investigation an attempt has been made to solve the two-dimensional incompressible viscous flow past an impulsively started circular cylinder for Reynolds numbers ranging from 20 to 5000 using higher-order semicompact scheme (HOSC). Unlike conventional higher-order compact schemes the HOSC scheme has been developed to handle the circular geometry of the chosen problem and the intensive algebraic manipulations have been reduced considerably by relaxing the compactness of the computational stencil for few terms (but retained for most of the terms) of the discretized equations. For the flow past an impulsively started circular cylinder the results obtained at low and moderate Reynolds numbers have been validated with the experimental and numerical observations available in the literature. For high Reynolds number flows, the present scheme rightly captures the alpha phenomenon at Re=1000 and both beta and alpha phenomena one after the other at Re=5000 .

Journal Article↗

PubMed2003

Disclosure of HIV infection in south India: patterns, reasons and reactions.

The aim of this study was to examine aspects related to self-disclosure of their seropositive status among 68 persons (35 men and 33 women) infected with HIV. Data was collected through in-depth interviews to assess ways in which HIV-related disclosure took place and factors that influenced disclosure. The data was subjected to both qualitative and quantitative analysis. Voluntary disclosure was noted in 44 subjects (65%), while in other 24 (35%) subjects disclosure occurred without consent. Of those who disclosed, 78% of the subjects reported self-disclosure to family members, 7% to friends and 15% exclusively to health professionals. Expectations of emotional and material support from the family members were one of the commonly cited reasons for voluntary disclosure. Only half of the subjects disclosed complete and truthful information while in the rest, disclosure was partial or disguised as a less stigmatizing illness. Stigma, fear of discrimination, disgrace to family and self and futility were reported as the main reasons for non-disclosure. The majority of the subjects (73%) reported anticipation of negative societal reaction as the main concern following disclosure. In India, where HIV-related counselling services are still not freely available, there continue to be non-uniform practices related to confidentiality and disclosure. The findings of this study are important in identifying cultural factors related to disclosure in HIV infection and highlight the need to examine the varying patterns and concerns related to disclosure among HIV-infected individuals.

Adolescent↗