Objective To assess the treatment outcomes of an HIV clinic in rural Limpopo province, South Africa. Methods A retrospective cohort study involving medical records review of HIV-positive patients initiated on antiretroviral treatment (ART) was conducted from December 2007 to November 2008 at Letaba Hospital. Data on socio-demographic characteristics, CD4 counts, viral loads (VLs), opportunist...

Impaired motivation is present in a variety of neurological disorders, suggesting that decreased motivation is caused by broad dysfunction of the nervous system across a variety of circuits. Based on evidence that impaired motivation is a major symptom in the early stages of Huntington's disease, when dopamine receptor type 2-expressing striatal medium spiny neurons (D2-MSNs) are particularly a...

Vulvar Lichen Sclerosus (VLS) is a chronically inflammatory disorder that requires early diagnosis and long-term follow-up for successful therapy prevention of malignancy. In this paper, we propose multimodal optical coherence tomography (MM OCT) as non-invasive diagnostic technique advanced VLS. The MM OCT provides 3D real-time visualization the vulvar skin structure with high spatial resoluti...

We observe in situ the vapor-liquid-solid (VLS) growth of Si nanowires, in UHV-CVD using Au catalyst. The nanowire sidewalls exhibit periodic sawtooth faceting, reflecting an oscillatory growth process. We interpret the facet alternation as resulting from the interplay of the geometry and surface energies of the wire and liquid droplet. Such faceting may be present in any VLS growth system in w...

The GENGED concepts and environment allow for the visual definition of visual languages (VLs) and to generate VL-specific visual environments for editing and simulation. The editing features capture either syntax-directed editing and/or free-hand editing. In the latter case, a user-defined diagram has to be analyzed in order to check the correctness of the diagram. In addition, behavioral diagr...

Abstract We report a “nano-on-micro” approach for growth of cactus-like nanostructures zinc oxide (ZnO) gas sensing application. use electrospun polymeric fibers doped with catalyst nanoparticles as the template and employ vapor-liquid-solid (VLS) method to ZnO nanostructures. Controlling processing variables in VLS process yields needle-like around fibers, which resembles needles cactus. The n...

Accurate road environment information is needed in applications such as road maintenance and virtual 3D city modelling. Vehicle-based laser scanning (VLS) can produce dense point clouds from large areas efficiently from which the road and its environment can be modelled in detail. Pole-like objects such as traffic signs, lamp posts and tree trunks are an important part of road environments. An ...

the aim of this research is preparation of sno2 nanowires by means of thermal chemical reaction vapor transport deposition (tcrvtd) method from sno powders. the morphology, chemical composition and microstructure properties of the nanowires are characterized using field emission scanning electron microscope (fe-sem), eds, and xrd. the xrd diffraction patterns reveal that the sno2 nanowires have...

The work focuses on understanding and characterization of the thin-film vapor-liquid-solid (TFVLS) growth technique as a low-cost process technology for III-V thin film solar cells on metal/glass substrates. In the last review period, we have focused on understanding and controlling the nucleation events of TF-VLS InP. Furthermore, optoelectronic characterization of the grown InP has been perfo...

7 ABSTRACT: The recently emerged selective lateral epitaxy 8 of semiconductor planar nanowires (NWs) via the vapor− 9 liquid−solid (VLS) mechanism has redefined the long10 standing symbolic image of VLS NW growthvertical NWs 11 extending out of the substrate. The in-plane geometry and self12 aligned nature make these planar NWs completely compatible 13 with large scale manufacturing of NW-base...