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Deposition and characterization of mesoporous silica coatings on magnesium alloys
Get PDFIn recent years, magnesium and magnesium alloys have received much attention as a new biomaterial in orthopaedic applications due to their biodegradability, biocompatibility, and their mechanical properties that are similar to natural bone tissue. The most common problem associated with magnesium as a biomaterial is low corrosion resistance in physiological solutions. This decreases the mechanical integrity of the implants in the early stages of healing and has a negative impact on the overall biocompatibility. The main goal of this study was to create a multi-layered coating consisting of a silica sol-gel under-layer to protect the substrate from corrosion in body fluids and a mesoporous silica top-layer to enhance the bioactivity of the coated implant material.
The results indicate that the deposited multi-layered coating enhances both the bioactivity and the corrosion resistance of the material
Factors contributing to the non-urgent use of the emergency department by Canadian triage and acuity scale IV and V patient in Sudbury, Ontario
Get PDFIn Canada, it is estimated that 57% of all emergency department (ED) visits are
for less-urgent or non-urgent care needs (Hodgins & Wuest, 2007). Factors that
contribute to the non-urgent use of ED services include lack of resources, insufficient
access to care, and lack of awareness regarding available health care options (Fieldston,
Alpern, Nadel, Shea & Alessandrini, 2012). The goal of this quantitative descriptive
design study was to determine the relationship between having access to a primary health
care provider, utilizing community based health care supports, and the patient’s
perception of illness, with the adult patient’s decisions for presenting to the ED with nonurgent
care needs.
Of the 119 respondents, 71.3% had access to a primary health care provider. A
majority of the respondents (70.1%) perceived the threat of their illness as moderate.
Those without registration with a primary care provider had a significantly higher
perceived threat of illness than those with a primary care provider. Results indicate that
72.6% of respondents presented to the ED because of a perceived urgency of need for
care, and 48.7% of participants came to the ED because they thought they required ED
services. Identifying why people present to the ED with non-urgent care needs can assist
health care providers and decision makers to enhance their understanding of the patient’s
expectations of health care services and their perception of illness
