Esophageal xanthoma is a rare lesion which is an asymptomatic small yellowish polyp, and most of the reported cases were solitary lesion.Histologically, aggregations of foam cells are found under the papillary hypertrophic squamous epithelium and the foam cells express CD68.The etiology of esophageal xanthoma is unknown.The focal irritation of the
The COVID-19 crisis had a huge impact on education and became the subject of many scientific studies.The purpose of the paper is to investigate the opinions of professors and students on the quality of teaching and satisfaction with e-learning during the COVID-19 crisis.The aim of the research is to answer the question to what extent professors and
We study entanglement dynamics in a dispersive optomechanical system consisting of two optical modes and a mechanical oscillator inside an optical cavity.The two optical modes interact with resistor wire the mechanical oscillator, but not directly with each other.The appearance of optical entanglement witnesses nonclassicality of the oscillator.We
We study the structure of the rest points of signaling games and their dynamic behavior Beko ASL1331PX Stainless Steel American Fridge Freezer under selection-mutation dynamics by taking the case of three signals as our canonical example.Many rest points of the replicator dynamics of signaling games are not isolated and, therefore, not robust under
The TOSLINK Optical outflow of freshwater from underwater channels in the Kongsbreen tidal glacier in Kongsfjorden, Svalbard, 79oN, was measured as 138.8 m3 s-1 at the peak of the melting season.Experiments on local marine plankton mortality show that when exposed to salinities below 9 PSU, all copepods die within 15 minutes.We estimate that during