Introducing the COVID-19 Trend Estimation App, a powerful tool for understanding the spread of the virus. Developed in R-statistics, this app utilizes advanced statistical modeling techniques to estimate the trend of COVID-19 infections in several countries. The main purpose of this app is to illustrate the usage of specific R package and to analyze the trends of the COVID-19 cases in my country, but it can also be used to estimate the trend of other countries. Whether you're a researcher, healthcare professional, or simply interested in understanding the pandemic, this app is a valuable resource for staying informed and making informed decisions.
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Progresive glasses study
Presbyopia affects near vision in those over 40 years old. Progressive lenses, without visible dividing lines, offer an aesthetic and functional solution, though they require adaptation. This study uses a visual quality questionnaire to evaluate user experience and posits that these lenses significantly improve vision in presbyopes.
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