Now showing items 31-40 of 52
Occupational exposure to human immunodeficiency virus in pediatricians: A previously undescribed high risk group
The risk of occupational HIV exposure in doctors caring for children with HIV infection is unknown. We conducted a retrospective survey among doctors at the Tygerberg Children's Hospital during September 2001, documenting ...
Hemoptysis and hypoxemia in an asthmatic
[No abstract available]
Use of Genetic Distance as a Measure of Ongoing Transmission of Mycobacterium tuberculosis
The stability of the genotypic marker IS6110, used to define the epidemiology of Mycobacterium tuberculosis, is one of the most important factors influencing the interpretation of DNA fingerprint data. We propose that ...
Incidence of tardive dyskinesia in first-episode psychosis patients treated with low-dose haloperidol
Background: Previous studies suggest that the risk of tardive dyskinesia is increased with higher doses of conventional antipsychotics. This study evaluates the 12-month incidence of tardive dyskinesia in subjects with ...
Reciprocal chromosome painting among human, aardvark, and elephant (superorder Afrotheria) reveals the likely eutherian ancestral karyotype
The Afrotheria, a supraordinal grouping of mammals whose radiation is rooted in Africa, is strongly supported by DNA sequence data but not by their disparate anatomical features. We have used flow-sorted human, aardvark, ...
Cost minimization by helpers in cooperative vertebrates
When parents invest heavily in reproduction they commonly suffer significant energetic costs. Parents reduce the long-term fitness implications of these costs through increased foraging and reduced reproductive investment ...
Kaposi sarcoma with upper airway obstruction and bilateral chylothoraces
A3-year-old boy infected with HIV presented with progressive dyspnea and upper airway obstruction necessitating airway stenting. Chest radiography revealed bilateral alveolar opacification and chylothoraces. Postmortem ...
Direct monitoring of membrane fouling and cleaning during ultrafiltration using a non-invasive ultrasonic technique
An ultrasonic technique has been applied as a non-destructive, real-time, in situ measuring technique for the non-invasive study of fouling and cleaning during ultrafiltration (UF) with polysulfone (PSU) membranes. Paper ...
Evolution of cooperation: Cooperation defeats defection in the cornfield model
"Cooperation" defines any behavior that enhances the fitness of a group (e.g. a community or species), but which, by its nature, can be exploited by selfish individuals, meaning, firstly, that selfish individuals derive ...
Studies on the influence of DNA repair on radiosensitivity in prostate cell lines
The relationship between radiosensitivity and DNA repair was investigated in six human prostate cell lines, 1542-NPTX, BPH-1, 1542-CP3TX, 1532-CP2TX, 1535-CP1TX and LNCaP. Except for LNCaP, these cell lines are new and ...