Background: The coronavirus pandemic is an international public health emergency without precedence in modern history.It represents a challenge to the academic and psychological stability of students due to the changes it can cause in daily life.This study aimed to evaluate the prevalence and level of burnout in medical students caused by the acade
ABSTRACTObjectives To evaluate the effect and mechanism of action of the flavonoid phloretin on the growth and viqua-f4 sucrose-dependent biofilm formation of Streptococcus mutans.Methods Minimum inhibitory concentration, viability, and biofilm susceptibility assays were conducted to assess antimicrobial and antibiofilm effect of phloretin.Biofilm
The structure of floral nectary surface of Sorbus intermedia in different phases of flower development was examined using scanning electron microscopy.Nectaries in S.intermedia flowers represent a receptacle type.The sculpture of cuticule on nectary epidermis and overlaying cells was described.The differences sten jacket m in the size of striaes on