Postpulmonary tuberculosis complications in South Africa and a potential link with pulmonary hypertension: Premise for clinical and scientific investigations

CITATION: Allwood, B. W. et al. 2018. Post-pulmonary tuberculosis complications in South Africa and a potential link with pulmonary hypertension : premise for clinical and scientific investigations. South African Medical Journal, 108(7):529, doi:10.7196/SAMJ.2018.v108i7.13359.The original publication is available at http://www.samj.org.zaThe magnitude of the pulmonary tuberculosis (TB) epidemic in South Africa (SA) and globally[1] has received increased attention. Efforts have been made to explore new and improved diagnostic[2] and treatment strategies,[3] but the story does not end with treatment, and TB frequently results in long-term lung damage.http://www.samj.org.za/index.php/samj/article/view/12339/8528Publisher's versio

Percutaneous pericardioscopy in tuberculous pericarditis: improving the diagnostic yield

Please help us populate SUNScholar with the post print version of this article. It can be e-mailed to: [email protected] Geneeskund

Case report and images in cardiology - ARVC with associated cardiac lipoma

ARVC with associated cardiac lipoma

A broadband antireflection coating for enhanced holographic recording and readout in bismuth silicon oxide

We demonstrate a high-quality double-layer antireflection coating for high index (n = 2.61 at 514 nm) photorefractive and electro-optic bismuth silicon oxide (Bi₁₂SiO₂₀) crystals. The antireflection coating comprises two electron-beam-deposited quarter-wave dielectric layers of MgF₂ and ZrO₂. and increases the beam throughput by as much as 20% per interface at normal incidence. For holographic recording applications, the antireflection coating eliminates multiple internal reflections that produce extraneous gratings. The combination of these two factors significantly increases the diffraction efficiency and the two-beam coupling gain. Key characteristics of the double-layer coating include a broadband minimum that encompasses typical write and read wavelengths for Bi₁₂SiO₂₀ with normal-incidence reflectivities of less than 0.2% at 514 nm and 1% at 633 nm, respectively, and a forgiving angular dispersion for both TE and TM polarized waves with reflectivities of less than 2% for angles of incidence up to 45°. © 1997 American Institute of Physics