BACKGROUND Fluorine-18-fluorodeoxyglucose uptake on positron emission tomography is reported to have prognostic significance in patients after resection of lung adenocarcinoma. However, its relationship with histopathologic features remains unknown. METHODS We conducted a retrospective analysis of 205 patients who had undergone surgical resection of primary lung adenocarcinoma (> 1.0 cm) afte...

The fluorine abundance of the Carbon-Enhanced Metal-Poor (CEMP) star HE 1305+0132 has been derived by analysis of the molecular HF (1-0) R9 line at 2.3357 μm in a high-resolution (R = 50, 000) spectrum obtained with the Phoenix spectrometer and Gemini-South telescope. Our abundance analysis makes use of a CNO-enhanced ATLAS12 model atmosphere characterized by a metallicity and CNO enhancements ...

The effect of variously fluorine-substituted β-methyl-β-nitrostyrenes on their antimicrobial activity was investigated. Their efficacy was determined by minimum inhibition concentration (MIC) in cultures of Gram positive and Gram negative bacteria and a fungus. Highest activity against the Gram negative bacterium, E.coli, was achieved with 4-fluorine-aryl substituted β-methyl-β-nitrostyrenes, w...

The large discrepancies between the calculated and observed structures for BrF(4)(+) and IF(4)(+) (Christe, K. O.; Zhang, X.; Sheehy, J. A.; Bau, R. J. Am. Chem. Soc. 2001, 123, 6338) prompted a redetermination of the crystal structures of BrF(4)(+)Sb(2)F(11)(-) (monoclinic, P2(1)/c, a = 5.2289(6) A, b = 14.510(2) A, c = 14.194(2) A, beta = 90.280(1) degrees, Z = 4) and IF(4)(+)SbF(6)(-) (ortho...

2014 We have investigated the dielectric, diamagnetic, and elastic properties of various 2-fluoroand 3fluoro-4-cyanophenyl esters. The esters are derivatives of benzoic, cyclohexane or bicyclooctane acids. For comparison we also measured the same properties of the corresponding non fluorinated esters. The change in the properties of the esters with either variation of the ring in the acid part ...

Perfluorocarbon (PFC) emulsions have been used for cell tracking studies [1, 2]; furthermore, Flögel et al. recently showed it is possible to visualize inflammation in myocardial infarction and cerebral photothrombosis (PT) mouse models using F MRI [3]. In contrast to conventional H contrast agents, F markers provide unambiguous signal in vivo due to the low natural abundance of fluorine in liv...

Endemic fluorosis is a chronic fluorine intoxication found in certain parts of the world where there is excessive fluorine in the water and soil. It affects the teeth and skeleton, and secondarily the nervous system (Siddiqui 1955; Jolly, Singh and Singh 1961; Singh, Jolly and Bansal 1961 ; Singh and Jolly 1961). The skeletal changes in experimental and industrial fluorosis are well recognised ...

The structure of self-assembled monolayers presenting aromatic rings at a surface is studied by near edge x-ray absorption fine structure spectroscopy (NEXAFS). Fluorine substitution at asymmetric positions in the aromatic rings is used to generate a layer of dipoles at the surface of the monolayer. We find that fluorine substituted aromatic rings are more ordered than unsubstituted aromatic ri...