Search Results - "Liebenberg, W."

Assessment of Thermal and Hydrolytic Stabilities and Aqueous Solubility of Artesunate for Formulation Studies by Bezuidenhout, J. W., Aucamp, M., Stieger, N., Liebenberg, W., Haynes, R. K.

“…For the purpose of establishing the optimum processing parameters and storage conditions associated with nanolipid formulations of the artemisinin derivative…”
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Water and the relationship to the crystal structure stability of azithromycin by Neglur, R, Hosten, E, Aucamp, M, Liebenberg, W, Grooff, D

“…This study investigated the solid-state physical stabilities of azithromycin dihydrate (AZM-DH), thermally prepared anhydrate and hemihydrate modifications…”
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Water and the relationship to the crystal structure stability of azithromycin: Thermal investigations of solvatomorphism, amorphism and polymorphism by Neglur, R., Hosten, E., Aucamp, M., Liebenberg, W., Grooff, D.

“…This study investigated the solid-state physical stabilities of azithromycin dihydrate (AZM-DH), thermally prepared anhydrate and hemihydrate modifications…”
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Compatibility Between Four Anti-TB Drugs and Tablet Excipients Determined By Microcalorimetry by Aucamp, M, Liebenberg, W, Okaecwe, T, Geldenhuys, M, Stieger, N

“…Previous isothermal microcalorimetry studies at 40 °C, with and without humidity (RH 75%), had shown no incompatibility between rifampicin (RIF), isoniazid…”
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Approximation-based integral versus differential isoconversional approaches to the evaluation of kinetic parameters from thermogravimetry by Neglur, R, Grooff, D, Hosten, E, Aucamp, M, Liebenberg, W

“…The relative accuracies of approximation-based integral versus differential isoconversional approaches for 'actual' E determination were investigated on…”
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Approximation-based integral versus differential isoconversional approaches to the evaluation of kinetic parameters from thermogravimetry: kinetic analysis of the dehydration of a pharmaceutical hydrate by Neglur, R., Grooff, D., Hosten, E., Aucamp, M., Liebenberg, W.

“…The relative accuracies of approximation-based integral versus differential isoconversional approaches for ‘actual’ E determination were investigated on…”
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Thermal methods for evaluating polymorphic transitions in nifedipine by Grooff, D., De Villiers, M.M., Liebenberg, W.

“…The thermal behaviour of nifedipine was studied with the view to understand the various phase transitions between its polymorphs. The focus was on polymorph…”
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Preparation and evaluation of metastable solid-state forms of lopinavir by Lemmer, H J R, Liebenberg, W

“…In this work, we present the preparation and evaluation of previously unreported metastable forms of the antiretroviral drug, lopinavir. By maintaining the…”
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Intervertebral disc degenerative disease in South Africa: a case-control analysis of selected gene variants by Pearce, Keenau, Less, Stephanie, Liebenberg, Adriaan W., Benjeddou, Mongi

“…Background Intervertebral disc (IVD) degenerative disease is a multifactorial disease for which genetics plays an integral role. Several genes, and their…”
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A novel reversed-phase LC method for quantitative detection of azithromycin in bulk drug and tablet formulations in various aqueous media by Odendaal, R W, Liebenberg, W, Aucamp, M E

“…A novel reversed-phase HPLC method with UV-detection for separation, identification and quantification of azithromycin (AZH) was developed. The method was…”
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Penetrating civilian craniocerebral gunshot wounds: a protocol of delayed surgery by Liebenberg, W Adriaan, Demetriades, Andreas K, Hankins, Matthew, Hardwidge, Carl, Hartzenberg, Bennie H

“…Several factors have led to our unique approach of delayed definitive débridement. We wanted to evaluate the effectiveness of our management and compare it…”
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Aneurysmal subarachnoid haemorrhage: guidance in making the correct diagnosis by Liebenberg, W A, Worth, R, Firth, G B, Olney, J, Norris, J S

“…Background: The natural history of untreated aneurysmal subarachnoid haemorrhage carries a dismal prognosis. Case fatalities range between 32% and 67%…”
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UV spectrophotometric method for the identification and solubility determination of nevirapine by Stieger, N, Liebenberg, W, Wessels, J C

“…An UV spectrophotometric method was developed for the quantitative determination of nevirapine in water, methanol and 0.1 N HCl. It was found that qualitative…”
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Does posterior fossa decompression improve oculomotor and vestibulo-ocular manifestations in Chiari 1 malformation? by Liebenberg, W A, Georges, H, Demetriades, A K, Hardwidge, C

“…Oculomotor and vestibulo-ocular manifestations are associated with Chiari 1 malformation. Reports of the results of decompression of CM1 in resolution of these…”
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Penetrating civilian craniocerebral gunshot wounds: a protocol of delayed surgery by Liebenberg, W Adriaan, Demetriades, Andreas K, Hankins, Matthew, Hardwidge, Carl, Hartzenberg, Bennie H

“…Several factors have led to our unique approach of delayed definitive débridement. We wanted to evaluate the effectiveness of our management and compare it…”
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The effects of B-sitosterol (BSS) and B-sitosterol glucoside (BSSG) mixture on selected immune parameters of marathon runners: inhibition of post marathon immune suppression and inflammation by Bouic, P J, Clark, A, Lamprecht, J, Freestone, M, Pool, E J, Liebenberg, R W, Kotze, D, van Jaarsveld, P P

“…A pilot study was undertaken to investigate the effects of the intake of capsules containing the plant sterols and sterolins (BSS:BSSG mixture) on selected…”
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Flowable resin composites as "filled adhesives": literature review and clinical recommendations by Unterbrink, G L, Liebenberg, W H

“…There is increasing reliance on laboratory testing of new products. The clinical significance of many such studies can be questioned. To function clinically,…”
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Influence of ethanol water-content on gatifloxacin recrystallisations by Perold, Z, Paxton, E, Brits, M, Liebenberg, W

“…Gatifloxacin is a flouroquinolone anti-bacterial agent. This study proved that even the presence of small amounts of water in the recrystallisation medium…”
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Developing a discriminating dissolution test for three mebendazole polymorphs based on solubility differences by Swanepoel, E, Liebenberg, W, Devarakonda, B, de Villiers, M M

“…Mebendazole, a broad spectrum anthelmintic drug, is practically insoluble in water and exists in three polymorphic forms, A, B, and C, of which C is…”
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Posterior composite resin simplification--what of scientific validation? by Liebenberg, W

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