We report on the first far-UV observations of the asynchronous polar BY Cam made by the FarUltraviolet Spectroscopic Explorer (FUSE). The source is known to exhibit the most extreme NV/CIV emission resonance line ratio observed among polars. The FUSE observations reveal a OVI resonance line weaker than in the prototype of polars, AM Her, with the absence of a detectable narrow component. The OV...

INTRODUCTION Mucoepidermoid carcinoma of the tracheobronchial tree is rare. Such tumors usually present with signs and symptoms of bronchial obstruction. Histologically, they can be classified as high-grade or low-grade tumors. Experience of imaging these tumors with 18fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) is limited. We present three cases of this...

2,2′ : 6′,2“-Terpyridine-4′-carboxylic acid (tpycH) reacts with uranyl cations under solvo-hydrothermal conditions to give [UO2(tpyc)2] ⋅ 2H2O (1), a monoperiodic polymer different from that previously reported. In the additional presence of NiII cations, Ni(tpyc)2 “expanded ligand” is formed and structure its complexes cation depends on anions present. [(UO2)2F4(H2O)2Ni(tpyc)2] (2) [UO2(mds)(H...

Incorporation of heavy metal ions in cement hydrates is great interest for the storage and immobilization toxic, hazardous, radioactive wastes using cementitious matrix. Magnesium silicate hydrate (M-S-H) a low pH alternative binder to commonly used Portland cement. Low cements have been considered as promising matrix municipal nuclear waste last decades. It however crucial assure that incorpor...