Background Optimum learning environments (LEs) have been shown to be linked with positive training outcomes for residents. The internal medicine residency programme is one of the oldest residency programmes in Sudan. However, there is little data concerning how the residents perceive the LE in training hospitals. Therefore, the purpose of this study was to assess the resi...

Abstract Background Sinonasal masses are not an uncommon spectrum of diseases. They frequently encountered in Sudan, sometimes with variability modalities across the country. The objective this study is to document pattern sinonasal Sudanese patients and highlight knowledge modalities, clinical presentations, management. As a consequence, will raise awareness especially general practitioners fa...

The e l e c t r o n i c t r a n s i t i o n in SmS involv ing a change in the valence s t a t e of Sm from 2+ towards 3+ , normally induced under p r e s sure / l / can a l so be induced a t atmospheric p re s su re e i t h e r by r ep lac ing Sm by a t r i v a l e n t r a r e e a r t h ion / 1 3 / or by a l l o y i n g SmS with SmP / 4 , 5 / SmAs / 6 / or SmSb /I/ . In t h i s paper , we w i l...