In this study, yttria stabilized tetragonal zirconia (YSTZ) ceramics were prepared and were sintered at different temperatures to find out the optimum sintering temperature for their better tetragonality and mechanical properties for their application as optical ferrule. Vicker’s hardness was performed by micro hardness tester and it was found to increase with the increase of sintering temperature to a maximum value, then it was decreased with higher sintering temperature. Water absorptivity and porosity were also seen to decrease as the densities of the specimens were increased. X-ray diffraction was employed to determine crystal structure of sintered samples. Surface morphology of the sintered samples was examined through field emission scanning electron microscope.Bangladesh J. Sci. Ind. Res.53(2), 111-116, 2018

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Purpose: The goal of this study is to evaluate how university libraries responded to the COVID-19 outbreak and explore the significant initiatives taken by libraries during the COVID-19 pandemic. Methodology: This research employed a content analysis approach using a descriptive quantitative study to obtain data from websites of 10 renowned public and private university libraries in Bangladesh based on purposive sampling. A checklist with 30 items in 5 categories was prepared to collect data and were organized in tabular form using Microsoft Excel for further analysis. Findings: Findings reveal that most of the university libraries offer additional online services, such as 75% of library websites provided information about library services during COVID-19, approximately 63% on an initiative for COVID-19, and 68% provided services considering the COVID-19 situation. The study found 84% of university libraries provided links, searches, and retrieval interfaces, and 90% of universities provided library resources during the pandemic. Most of the university libraries have significant digital library services. On the contrary, around 24% of library websites continue to lack certain services to implement basic accessibility standards. Research limitation: The limitation of the present study lies in relying on the contents available on the websites of a limited number of university libraries at a given point of time. Practical implications: This article aims to present a roadmap that libraries can use to make an informed decision while adding new services or enhancing existing ones. Keywords: Content analysis, COVID-19, coronavirus, library website, remote instruction, SARS-COV-2