INTRODUCTION: On 31 December 2019, the China Country Office of the World Health Organization (WHO) reported on cases of pneumonia with unknown etiology in the Wuhan city of the province of Hubei. On ...7 January 2020, the factor was defined as a new Coronavirus (2019-nCoV) that had not been detected in humans before. The aim of this study is to analyze the pandemic in 8 different countries. METHODS: In the study, we included the countries with the highest numbers of cases by the date 04.05.2020 (USA, China, Italy, Germany, Iran, France, Turkey), as well as South Korea. We comparatively analyzed the countries' total case and mortality numbers, mortality rates, over-65 years old population rates and dates of precautions that were taken. RESULTS: The number of COVID cases in the entire world exceeded 3.6 million, and approximately 75.2% of these cases were seen in 7 countries (USA, Italy, China, Germany, France, Iran, Turkey), whereas the number of related deaths worldwide exceeded 250 thousand by the same date (02.04.2020). DISCUSSION AND CONCLUSION: We are facing the greatest pandemic of the last century, or even the history of humanity, which has affected the society in all aspects from the field of medicine to economics. The greatest weapon for the history of humanity in the fight against the pandemic would be countries' transfer of their knowledge to each other.
Polyvinylimidazole (PVI)-grafted iron oxide nanoparticles (PVIgMNP) were prepared by grafting of telomere of PVI on the iron oxide nanoparticles. Different metal ions (Cu
2+
, Zn
2+
, Cr
2+
, Ni
2+
) ...ions were chelated on polyvinylimidazole-grafted iron oxide nanoparticles, and then the metal-chelated magnetic particles were used in the adsorption of invertase. The maximum invertase immobilization capacity of the PVIgMNP–Cu
2+
beads was observed to be 142.856 mg/g (invertase/PVIgMNP) at pH 5.0. The values of the maximum reaction rate (
V
max
) and Michaelis–Menten constant (Km) were determined for the free and immobilized enzymes. The enzyme adsorption–desorption studies, pH effect on the adsorption efficiency, affinity of different metal ions, the kinetic parameters and storage stability of free and immobilized enzymes were evaluated.
A Comparison Theorem for Spectral Sequences Uzun, Mecit Kerem
Anadolu University journal of science and techonology - b - theoretical sciences/Anadolu Üniversitesi bilim ve teknoloji dergisi -b- teorik bilimler,
12/2015, Letnik:
3, Številka:
2
Journal Article
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