Perceived work-related stress and associated factors among the surgical workforce in a Nigerian tertiary health facility: A cross-sectional study.

Healthcare workers continue to experience high levels of work-related stress which continue to negatively affect their psychological, physical, and emotional well-being. This is even more prevalent among healthcare workers who work in surgical specialities, with the surgical operation room becoming a known stressor at hospitals. This study aims to assess work-related stress among surgical team members at Ahmadu Bello University Teaching Hospital in Zaria between January 2021-2022.

Recent Progress on the Gold-Free Integration of Ternary III-As Antimonide Nanowires Directly on Silicon.

During the last few years, there has been renewed interest in the monolithic integration of gold-free, Ternary III-As Antimonide (III-As-Sb) compound semiconductor materials on complementary metal-oxide-semiconductor (CMOS)-compatible silicon substrate to exploit its scalability, and relative abundance in high-performance and cost-effective integrated circuits based on the well-established technology. Ternary III-As-Sb nanowires (NWs) hold enormous promise for the fabrication of high-performance optoelectronic nanodevices with tunable bandgap. However, the direct epitaxial growth of gold-free ternary III-As-Sb NWs on silicon is extremely challenging, due to the surfactant effect of Sb.

Photoluminescence Characteristics of Zinc Blende InAs Nanowires.

A detailed understanding of the optical properties of self-catalysed (SC), zinc blende (ZB) dominant, nanowires (NWs) is crucial for the development of functional and impurity-free nanodevices. Despite the fact that SC InAs NWs mostly crystallize in the WZ/ZB phase, there are very limited reports on the photoluminescence (PL) properties of ZB InAs NWs. Here, we report on the PL properties of Molecular Beam Epitaxy grown, SC InAs NWs.

Current Status of Mental Health Services at the Primary Healthcare Level in Northern Nigeria.

Mental health services at the primary healthcare level remain critical in most developing countries, especially in resource-poor and crisis-stricken communities. This study explored the erstwhile mental health services, with particular reference to their availability, at the 47 primary healthcare centres in three selected states in northern Nigeria, with a view to drawing for action. Qualitative data were collected from a purposive sample of 13 participants through in-depth interviews.

Optimization of self-catalyzed InAs Nanowires on flexible graphite for photovoltaic infrared photodetectors.

The recent discovery of flexible graphene monolayers has triggered extensive research interest for the development of III-V/graphene functional hybrid heterostructures. In order to fully exploit their enormous potential in device applications, it is essential to optimize epitaxial growth for the precise control of nanowire geometry and density. Herein, we present a comprehensive growth study of InAs nanowires on graphitic substrates by molecular beam epitaxy.

Realization of Vertically Aligned, Ultrahigh Aspect Ratio InAsSb Nanowires on Graphite.

The monolithic integration of InAs(1-x)Sb(x) semiconductor nanowires on graphitic substrates holds enormous promise for cost-effective, high-performance, and flexible devices in optoelectronics and high-speed electronics. However, the growth of InAs(1-x)Sb(x) nanowires with high aspect ratio essential for device applications is extremely challenging due to Sb-induced suppression of axial growth and enhancement in radial growth. We report the realization of high quality, vertically aligned, nontapered and ultrahigh aspect ratio InAs(1-x)Sb(x) nanowires with Sb composition (xSb(%)) up to ∼12% grown by indium-droplet assisted molecular beam epitaxy on graphite substrate.

Sb-induced phase control of InAsSb nanowires grown by molecular beam epitaxy.

For the first time, we report a complete control of crystal structure in InAs(1-x)Sb(x) NWs by tuning the antimony (Sb) composition. This claim is substantiated by high-resolution transmission electron microscopy combined with photoluminescence spectroscopy. The pure InAs nanowires generally show a mixture of wurtzite (WZ) and zinc-blende (ZB) phases, where addition of a small amount of Sb (∼2-4%) led to quasi-pure WZ InAsSb NWs, while further increase of Sb (∼10%) resulted in quasi-pure ZB InAsSb NWs.

Graphitic platform for self-catalysed InAs nanowires growth by molecular beam epitaxy.

We report the self-catalysed growth of InAs nanowires (NWs) on graphite thin films using molecular beam epitaxy via a droplet-assisted technique. Through optimising metal droplets, we obtained vertically aligned InAs NWs with highly uniform diameter along their entire length. In comparison with conventional InAs NWs grown on Si (111), the graphite surface led to significant effects on the NWs geometry grown on it, i.

Pattern of eye diseases in a university health service clinic in northern Nigeria.

Background: Eye diseases constitute one of the common health problems presenting to the general practice clinic and could have significant socioeconomic consequences.

Objectives: To determine the pattern of eye diseases presenting to the eye clinic of Ahmadu Bello University Sick Bay, Samaru, Zaria.

Methods: A prospective study of both new and old consecutive patients presenting to the eye clinic of Ahmadu Bello University Sick Bay between March 2009 and May 2010 was conducted.

Prognosis of non traumatic coma: the role of some socio-economic factors on its outcome in Ibadan, Nigeria.

Background: Coma occurring in the course of an illness, irrespective of cause, traditionally implies a poor prognosis and many factors may determine its outcome. These factors must be identified and possibly stratified in their order of importance. This research seeks to identify these factors and how they influenced the outcome of non-traumatic coma in our environment.