This study identified the factors impacting adopting blockchain authentication technology in Malaysia. However, there is a lack of research on the factors that drive blockchain authentication technology adoption, notably in Malaysian banks. Malaysian banks and financial organisations urgently require a secure authentication mechanism. Despite these promising conclusions, research targeting the understanding of proper mask fit, design, quantitative fit testing for cloth and surgical masks are areas that will re-shape our understanding of mask FE. Respirators in particular have been proven to reduce the transmission of SARS-CoV-2 in high-risk healthcare settings. These respirators provide the highest levels of protection against SARS-CoV-2.Ĭloth masks provide some protection against SARS-CoV-2, followed by the surgical mask then by respirators. N95, KN95, FFP2 and FFP3 respirators all exceed the levels of protection provided by cloth and surgical masks. Surgical masks provide better protection however, this level of protection is significantly affected by the fit of the mask, and the masks’ certification of validity (NIOSH-approved, EN 14683). Cloth masks composed of different blends of fabrics, in addition to numerous layers provide the wearer with a higher level of protection as compared to a cloth mask made of one material and one layer.
Masks have been proven to reduce infection rates of COVID-19 to an extent. A total of 10 articles were included in this review. Zotero was utilized to maintain a detailed record of the articles. The purpose of this systematic review is to provide more information on the protective efficacies of cloth and surgical masks, N95, KN95, FFP2 and FFP3 respirators against SARS-CoV-2 and similar particles.Ī total of 8 reputable databases (PubMed, JOSTOR Journals, CINAHL, MedLINE, ERIC, ScienceDirect, Google Scholar and The Directory of Open Access Journals) have been searched for articles as guided by a set inclusion and exclusion criteria. These items provide protection by filtering infectious particles, hence breaking the chain of transmission. Respiratory protection equipment, including face masks in particular, have been classified as items of respiratory protection by the CDC, WHO, and NIOSH.
The increased morbidities and mortalities brought unto us by the SARS-Co-2 virus have earned the disease the position of a public health emergency. More severe symptoms can present as complications of the disease, thus increasing morbidity in infected patients. COVID-19 infections produce a wide range of symptoms which include fever, cough, nausea, conjunctivitis, and even altered consciousness.
According to the World Health Organization, as of August 22, 2021, a total of 209,876,613 COVID-19 infections had been identified worldwide, with a total of 4,400,284 deaths. With an infectivity rate (R0) of approximately 2.5, higher than that of Influenza, SARS-CoV and MERS-CoV, and its ease of transmission through droplets, it has burdened our world with disease. The COVID-19 pandemic has grasped the world since late 2019. Hence, Boolean search strings are very useful for information retrieval.
#Boolean search string generator free
The technique was evaluated based on three (3) criteria: Number of documents retrieved, the time taken to retrieve them and the relevance of the documents to the query or research question.The analysis of this technique shows that Boolean search strings technique returns more relevant articles compared to the free text query by at least 77% and in shorter time frame.
Searching engines such as google, google scholar and online bibliography sources such as IEEE Xplore, ACM and Science Direct were used to implement the technique. In this paper, the technique of Boolean search string is explored in details along with the analysis/evaluation of the effectiveness of the technique. However, with little automated help for the free text search query. Search engines and on-line bibliography resource sites are conventionally used to find the relevant literatures using key word search. The relevant literatures should be searched from multiple sources. The review of available literature is a foundation requirement for most research projects.
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