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Biomedical subjects

M Rahman

Publications and source records attributed to M Rahman.

At least 235 records · Page 13Linked to original sources
PubMed1987

Effect of job satisfaction on stress, performance and health in self-paced repetitive work.

The present study was designed to investigate the effect of job satisfaction on stress, performance and health in self-paced repetitive work. There were two groups of subjects. One group consisted of 41 subjects with a high score on job satisfaction and the second group consisted of an equal number of subjects with a low score on job satisfaction. The mean age and experience of high and low satisfied groups are respectively 34.63 and 13.60 and 34.14 and 15.51 years. The educational qualifications of all the workers were below primary level. The results of the study indicate that the low satisfied workers experience more stress and describe their job more unfavourably than the highly satisfied workers. It is also observed that the high satisfied workers are better performers and possess good health (fewer health complaints and good mental health) than that the dissatisfied workers. The findings of the study suggest that the quality of working life may be improved by increasing the job satisfaction of the workers.

Adult↗
PubMed1987

Rapid diagnosis of cholera by coagglutination test using 4-h fecal enrichment cultures.

A simple, rapid, and reliable method to detect Vibrio cholerae in fecal specimens would assist in the management of cases of severe diarrhea, especially since most such cases occur in areas with minimal laboratory facilities. A coagglutination test was used to detect V. cholerae antigen in bile-peptone broth incubated with feces. In the technique, Staphylococcus aureus Cowan 1 coated with anti-V. cholerae O1 antiserum was tested with cultures incubated for 4 h. When 165 specimens were tested, the sensitivity, specificity, and accuracy of the test, compared with standard culture methods, were 97, 99, and 98%, respectively. These promising results were better than those of dark-field microscopy using the same specimens, and the test was logistically easy to perform. The coagglutination test using enrichment broth culture of feces is a simple and rapid method which may be used to confirm a diagnosis of cholera.

Agglutination Tests↗
PubMed1987

Twenty-four-hour recall, knowledge-attitude-practice questionnaires, and direct observations of sanitary practices: a comparative study.

Although responses to 24-hour recall and knowledge-attitude-practice questionnaires are commonly used in water-sanitation studies as surrogates for direct observation of behaviour, the validity of this approach is questionable. We therefore compared questionnaire data with those obtained by direct observation of practices related to water storage, handwashing, and defecation among 247 families in urban Dhaka, Bangladesh. Analysis of the results indicates that accord between the replies to the questionnaires and the data collected by direct observation was poor and that the responses to the two questionnaires were often contradictory. Significant disagreements between the results of questionnaires and observations arose usually because desirable practices were over-reported by the respondents. The results of the study suggest that in urban Bangladesh 24-hour recall and knowledge-attitude-practice questionnaires should not be used as proxies for direct observation of hygiene practices.

Bangladesh↗
PubMed1986

Plasmid profiling of epidemic staphylococci from around 1960: a comparison of epidemiological techniques.

Plasmid profiles have been established for 68 isolates of Staphylococcus aureus from 13 episodes of epidemic spread in hospital wards between 1958 and 1962. Despite the original lack of care in preservation of strains the profiles give, in general, the same epidemiological patterns as were established originally on the basis of phage type, antibiotic sensitivity, ward and date of isolation.

Disease Outbreaks↗
PubMed1986

Na-K-adenosine triphosphatase and cation content in the erythrocyte in essential hypertension.

We measured ouabain-sensitive and ouabain-resistant Na-K-adenosine triphosphatase (ATPase) activity in the red cells of 25 normotensive (average mean blood pressure [BP] 90.2 +/- 1.27 mm Hg) and 29 hypertensive subjects (average mean BP 115.3 +/- 2.45 mm Hg). Intracellular Na and K content were measured in 13 of the normotensive and 19 of the hypertensive subjects. All subjects were male, black, of comparable weight, and had not received antihypertensive medications for at least 30 days. Ouabain-sensitive ATPase activity was found significantly lower in the hypertensive than in the control group (140.2 +/- 11 and 97.6 +/- 7.6 nmol/mg/hr, respectively, P = 0.0008), whereas no significant difference in ouabain-insensitive ATPase was observed. Intracellular Na concentration was higher (9.47 vs. 7.24 mmol/L, P = 0.0144), and intracellular K concentration lower (82.8 vs. 88.8 mmol/L, P = 0.0425) in the hypertensive subjects. These results are consistent with diminished activity of the Na-K pump in black males with essential hypertension who have received no treatment.

Blood Pressure↗
PubMed1986

A randomized double blind trial of aspirin versus placebo in cholera and non-cholera diarrhoea.

A randomized double blind controlled clinical trial was conducted on 30 patients with cholera and 18 patients with severe non-cholera diarrhoea, to study the antisecretory effect of acetylsalicylic acid (aspirin). The criteria for selection of patients was a stool output of 4 ml/kg per hour over 6 hours of baseline observation. On inclusion into the study, the groups were comparable in sex, age, body weight, duration of diarrhoea and severity of dehydration. Aspirin and placebo (starch) were given by mouth in doses of 25 mg/kg/day for 24 hours in four equally divided doses. Fourteen patients with cholera and 10 with non-cholera diarrhoea received aspirin and the others received placebo. The aspirin and the placebo groups did not differ in their rate of stool output. The results suggest that aspirin in the above mentioned dose has no antisecretory activity.

Adult↗
PubMed1986

A long-term follow-up study on the efficacy of further attenuated live measles vaccine, Biken CAM vaccine.

Antibody persistence was measured in 39 children in an open community 12-13 years after immunization against measles with further attenuated live vaccine, Biken CAM. Serum samples of the children taken every two or three years after vaccination had higher, lower, or the same HI antibody titers as those in samples taken 6 weeks after vaccination. These differences reflected a decrease in the titer in some children and subclinical natural reinfection in others. However, all the children still retained detectable antibody in 12 or 13 years after vaccination, indicating long-term persistence of immunity after immunization with Biken CAM vaccine. For evaluation of the protective efficacy of the vaccine, matched controls were studied during the same period. Serological examination revealed that 97.5% of the controls were infected with measles and contracted the disease. In contrast, none of the vaccinees developed clinical infection after close contact with measles patients.

Adolescent↗
PubMed1985

Impact of environmental sanitation and crowding on infant mortality in rural Bangladesh.

In two villages of Bangladesh, 2471 infants born in 1976 and 1977 were followed up for a year to study the impact of environmental sanitation and crowding on their mortality. Neonatal and postneonatal mortality rates in the study cohort were 100 and 75 per 1000 live-births, respectively. Multiple logistic regression analysis was done to estimate the effects of the selected risk factors while controlling for some socioeconomic, demographic, and biological characteristics. Risk of postneonatal mortality (PNNM) in the households which did not use latrines was 3 X 12 times (p less than 0.01) higher than in those which did and 1.5 times (p less than 0.05) higher in the households with 10 or more persons than in smaller households. PNNM in the households which did not use tube-wells (hand-pump) water was higher, but not significantly so, than in those which used tube-well water for all purposes. Neonatal mortality was completely unrelated to the environmental factors investigated.

Bangladesh↗
PubMed1985

Commissioning a new hospital isolation unit and assessment of its use over five years.

Experience in commissioning and running a new hospital isolation unit, together with some problems and their solutions are described. The main problems were low bed-occupancy and insufficient work for the staff. This was solved by admitting both infected and non-infected cases including immunosuppressed. An assessment of the unit and benefits derived after 5 years use was made. A reduction in outbreaks of hospital infection and in ward closures resulting from infection was demonstrated.

Adult↗
PubMed1985

DDT--susceptibility status of Anopheles philippinensis--a mosquito vector of malaria in Bangladesh.

DDT-susceptibility tests conducted on An. philippinensis Ludlow in 1979 and 1980 and several previous years of observations made during malaria programmes in different areas of Bangladesh have been reported. The LC50 value for 1980 was found to be 0.74% DDT showing 2.96 and 1.85 fold increase of tolerance level from 1961 (0.25%) and 1976 (0.4%) respectively. The tests showed that the species continues to be susceptible to DDT in Bangladesh. However, the changes in LC50 over the years may indicate a slight acquisition of "vigour tolerance."

Animals↗