Charged-soliton excitations in controlled-conjugation-length polyacetylene.
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Biomedical subjects
Publications and source records attributed to A Borghesi.
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59 (18.3%) of 323 patients with tuberculosis (TB) tested for HIV-1 antibody by ELISA technique (Wellcozyme) were seropositive. In the control group selected among the health personnel working in the Arua Hospital, 7.7% were found positive for HIV-1 antibody, thus showing a significantly lower prevalence compared with the TB patients (P < 0.005). The prevalence of HIV infection was 50% in the urban TB patients, 7% in TB patients living in rural areas surrounding Arua town and 1.6% in the peripheral rural setting. Of 27 TB patients with clinical AIDS, 18 died during the course of the study. The AIDS patients' survival rate was 46.4% 6 months after diagnosis, and 21.4% after 16 months, the median period of survival being 5.0 months. Risk factors, sputum conversion rate, clinical and radiological findings were analysed. No significant difference was found between seropositive and seronegative TB patients for clinical drug-related toxicity (P > 0.05).
210 children aged less than 5 years, referred to the Arua Regional TB Centre (Uganda) for suspected pulmonary tuberculosis (PTB), were examined by anamnesis, clinical examination, Mantoux test, gastric washing, chest X-ray. The response to treatment criterion was applied to the patients treated. According to the score method suggested by Ghidey and Habte, 31 children were diagnosed as PTB patients. 30 of the 31 children with PTB tested positive for alcohol acid-fast bacilli (AAFB) in the aspirated juice. The Mantoux test and X-rays gave a minor contribution to diagnosis. The clinical results are commented. A statistical analysis was carried out to evaluate the role of gastric washing in the diagnosis of PTB in children under 5 years of age (sensitivity, 96.8%; specificity, 92.2%; positive predictive value, 68.2%; negative predictive value, 99.4%). The response to treatment was also evaluated. A modified enlarged score method (based on gastric washing and including response to treatment) is proposed to be applied in developing countries where chest X-ray and other facilities are often lacking.
An anthropometric survey of children aged 0-59 months in north-west Uganda in February-March 1987 indicated a high prevalence of stunting but little wasting. Use of unprotected water supplies in the dry season, prolonged breast-feeding, and age negatively affected nutrition; in contrast, parental education level improved nutrition. Mortality during the 12 months following the survey was higher among those who had low weight-for-age and weight-for-height, but children who had low height-for-age did not have higher mortality. Weight-for-age was the most sensitive predictor of mortality at specificities > 88%, while at lower specificity levels weight-for-height was the most sensitive. Children whose fathers' work was associated with the distillation of alcohol had a higher risk of mortality than other children. The lowest mortality was among children whose fathers were businessmen or who grew tobacco.
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