Anton du Plessis

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Twenty-four children with Williams syndrome underwent systematic neurologic evaluations. Abnormalities of mental status, motor coordination, tone, and gait were most prevalent. Tone abnormalities varied as a function of age, with younger children frequently exhibiting decreased tone and older subjects almost exclusively having increased tone. The gait and(More)
Duloxetine hydrochloride, a mixed reuptake inhibitor of serotonin and noradrenaline, was studied in a 6 week open-label uncontrolled multicentre design at a dose of 20 mg daily both in in- and outpatients meeting DSM-III-R criteria for unipolar major depressive disorder. Seventy-nine patients took part in the study. The mean score on the 17-item Hamilton(More)
Urbanisation is associated with obesity, hypertension and development of the metabolic syndrome (MS). We aimed to assess the use of different coping styles and their influence on increases in MS indicators and target end-organ damage (TOD) in urban black African men. A sample of 53 men was classified as clear high active (AC, n = 30) or passive coping (PC,(More)
BACKGROUND Brooding brittle stars have a special mode of reproduction whereby they retain their eggs and juveniles inside respiratory body sacs called bursae. In the past, studying this phenomenon required disturbance of the sample by dissecting the adult. This caused irreversible damage and made the sample unsuitable for future studies. Micro X-ray(More)
Changes in the laser induced molecular dissociation of 1,1,1-trichloroethane (TCE) were studied using a range of intensities and standard laser wavelengths with nanosecond and femtosecond pulse durations. TCE contains C-H, C-C and C-Cl bonds and selective bond breakage of one or more of these bonds is of scientific interest. Using laser ionization time of(More)
Psychosocial stress is a contributing factor to cardiovascular disease. 1 An important way of investigating the mechanisms underlying this association is acute psycho-physiological stress testing, involving measurement of physiological responses to laboratory-induced stress. Psycho-physiological stress testing allows individual differences in responses to(More)
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