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Biomedical subjects

D Singh

Publications and source records attributed to D Singh.

At least 433 records · Page 24Linked to original sources
PubMed1967

The Culex pipiens fatigans problem in South-East Asia with special reference to urbanization.

In South-East Asia in recent years urbanization has proceeded rapidly. Because of limited financial resources it has seldom been possible to provide sufficient sanitation; this has led to conditions favourable to the breeding of Culex pipiens fatigans. The density of C. p. fatigans is higher in urban areas than in rural ones. Differences in infection and infectivity rates in C. p. fatigans seem to be due to differences in infection rates in the human population rather than to differences in the life-span of the mosquito. Precipitin tests have shown that the species feeds predominantly on man. It breeds in almost any type of stagnant water with organic contamination. Filariasis problems in India have been classified according to the duration of established transmission.

Animals↗
PubMedDate not supplied

Primary school teacher as a primary health care worker.

School children (1608) were examined for three items (nails, scalp hairs and teeth) relating to personal hygiene and relevant infective conditions from two sets of villages i.e. one set where primary school teacher was working as primary health care worker (Group I) and the other set where Community Health Volunteer (CHV) was delivering primary health care (Group II). The objective was to evaluate the efficiency of school teachers' role vis-a-vis CHVs' in imparting health education to school children. Out of 1608 school children, 801 belonged to Group I villages and the remaining 807 to Group II villages. From the results, it was evident that children of Group I villages were better with respect to all the items related to personal hygiene and infective conditions excepting scalp infections, where difference was not statistically significant, indicating teachers' superiority over the CHVs' in imparting health education to school children.

Child↗
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Growth chart design.

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Anthropometry↗
PubMedDate not supplied

Mid-arm circumference for detecting malnutrition during infancy.

Mid-arm circumference (MAC) has been extensively used at 1-5 years of age as an age-independent indicator of protein-energy malnutrition (PEM). Its role below 12 months of age has not been studied adequately and a search for a clinically reliable cut-off point has not been systematically done. This study was planned to establish the age-independent character of MAC within the 6-12 month age group and identify a cut-off point demonstrating the maximum sensitivity and specificity in detection of PEM. Two hundred and forty malnourished infants [< 80% weight for age (W/A) of 50th percentile of NCHS standard] were included with even distribution into 6 subgroups; 240 healthy infants were taken as controls. MAC within the age of 6-12 months was found to be age independent with an overall increase of 5.1%. By using various cut-off points a value of < or = 12.5 cm of MAC proved to be having maximum sensitivity (92.1%) and specificity (88.3%). MAC is, therefore, a simple, age independent, informative measurement for early assessment of PEM by using single cut-off point < or = 12.5 cm, and can serve as a screening test for targeting infants for meaningful utilization of nutritional programmes. Since nearly all MAC tapes in current use already have < or = 12.5 cm colour coded cut-off, no new tapes are necessary.

Anthropometry↗