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Thermal rearrangement of spirans (14) and (31) yields the xanthones (16,34) and diphenylrnethane (15, 32), respectively. The structure for xanthone (16), isolated from thermolysis, has been established by reduction to xanthene (20) followed by reoxidation to give xanthone (16). Alternatively, methylation of the diphenylmethane (15) followed by heating with selenium dioxide also yields xant...
Mast cells (MC) are immune cells located next to the intestinal epithelium with regulatory function in maintaining the homeostasis of the mucosal barrier. We have investigated MC activities in colon inflammation and cancer in mice either wild-type (WT) or MC-deficient (Kit(W-sh)) reconstituted or not with bone marrow-derived MCs. Colitis was chemically induced with dextran sodium sulfate (DSS)....
Leadership, as McDonald (1)argues, is a phenomenon which many people involved in healthcare around the globe put great emphasis on today; some even see the improvement of leadership as a panacea for all the ills of their healthcare system. This brief commentary on her work seeks to supplement the points she makes by emphasising the personalattractions leadership enjoys, at least in the eyes of ...
The Covid-19 pandemic was accompanied by a massive increase of the supply and demand for pandemic-related information. Similarly, conspiracy theories about origins functions virus flourished during early stages pandemic. present study draws on nationally representative sample German population aged 18+ (N = 1,207) to investigate factors that are associated with people’s susceptibility believe i...
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