PubMed Health⌕ Search

Biomedical subjects

T Gopaldas

Publications and source records attributed to T Gopaldas.

34 records · Page 2Linked to original sources
PubMedDate not supplied

A simple field test for identification of night-blindness.

A simple and replicable field test to measure dark adaptation time has been developed. It required a darkened room with a 5 watt bulb covered with a piece of black cloth, a spherical white object of 22 cm diameter suspended vertically from a horizontal string, a stool, a black curtain, a Maxwell electronic photographic flash unit and a stop-watch. The spherical object behind the closed curtain was hung 1.5 m away from the subject either to his left or right, or in the centre of the room. The seated subject was then exposed to 3 consecutive flashes, the curtain drawn, and the time taken to identify the position of the object was noted on the stop-watch. The test was conducted for 3 consecutive days on non-night blind young adult girls (n = 46) of the high income group (PC); underprivileged school-age children (n = 44) with a positive history of night-blindness (NB), and their age/sex pair-matched (n = 44) non-night-blind controls (NNB). The NB group had a significantly higher mean dark adaptation time as compared to the NNB and PC groups (14.9 sec vs 11.9 and 11.3 sec respectively). The mean serum vitamin A levels of NB, NNB and PC groups (15.8, 17.5 and 29.5 micrograms/dl respectively) were correlated with the dark adaptation times.

Adolescent↗
PubMedDate not supplied

Child diarrhea: oral rehydration therapy and rural mother.

The prevalence of diarrhea among children, feeding practices during diarrhea, and knowledge about oral rehydration therapy (ORT) among 2616 mothers and 44 Anganwadi workers (AWWs) of Panchmahals and 2293 mothers and 37 AWWs of Chandrapur districts of Gujarat State and Maharashtra State, respectively, were investigated. The effect of maternal literacy status and nutrition knowledge on mothers' and AWWs' ability to correctly prepare an oral rehydration solution (ORS) was also examined. The prevalence of diarrhea was highest in children less than 2 yr old, and thereafter it showed a consistent decline up to 6 yr. Most of the mothers favored a reduction in the child's food intake during diarrhea, whereas the AWWs favored increasing it. Awareness of mothers about ORT was low, but half of those who were aware could prepare ORS correctly. Maternal literacy status and nutrition knowledge positively affected the mother's understanding of ORT and her ability to prepare ORS. The mother's presence and availability at home positively influenced the utilization of ORS when her child was sick with diarrhea. Thus, poor literacy status, poor nutrition knowledge, and working-mother status appear to limit mothers' ability to utilize ORS to prevent or correct diarrhea-induced dehydration.

Child↗