Recently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants (B.1.1.7 and B.1351) have emerged harbouring mutations that make them highly contagious. The N501Y mutation within the receptor-binding domain (RBD) of spike protein these SARS-CoV-2 may enhance binding to human angiotensin-converting enzyme (hACE2). However, no molecular explanation for such an enhanced affinity ha...

Bloom and Van Reenen (Quarterly Journal of Economics 122:1351–1408, 2007) examined the relationship between firm management practices performance demonstrated that scores had a positive impact on performance. While they focus its in manufacturing sector, we examine how are related to bus industry Japan, where both private public companies exist, these firms regulated by government. We find have...

The aim of the research was to conduct an in-depth analysis investigation chlamydial infections occurred in cats and dogs Kyiv during last 10 years. article includes three main directions investigation: 1) epizootic situation with chlamydiosis; 2) Microbiological 3) Serological monitoring. clinical epizootiological studies chlamydiosis have been looked into, focus on differences similarities ag...