OBJECTIVE: The objective of the present study was to evaluate both immediate and late effects of fractionated cobalt-60 teletherapy over the mean percentage of empty osteocyte lacunae in rats mandibles. MATERIALS AND METHODS: The animals sampling (n = 45) was divided into three groups with 15 specimens each: group 1 – submitted to fractionated teletherapy (60 Gy) and sacrificed following the la...

A case of haemangioendotheliosarcoma of the right atrium in a 28-year-old man is reported. The presence of a continuous murmur to the right of the sternum as a clue to the diagnosis is pointed out, and the usefulness of cardiac catheterisation and angiography in making diagnosis emphasised. Irradiation therapy with cobalt-60 had a palliative effect upon this malignant tumour.

A molecular solid of fullerene (C(60)) intercalated with cobalt cyclopentadienyl dicarbonyl (CoCp(CO)(2)) was shown to be an effective matrix for matrix-assisted laser desorption/ionization mass spectrometry (MALDI) of large alkanes (demonstrated up to C(94)H(190)) and polyethylenes that otherwise cannot be produced as intact ions in the gas phase.

Direct C2-alkylation of an indole bearing a readily removable N-pyrimidyl group with a vinylsilane was achieved by using a cobalt catalyst generated in situ from CoBr(2), bathocuproine, and cyclohexylmagnesium bromide. The reaction allows coupling between a series of N-pyrimidylindoles and vinylsilanes at a mild reaction temperature of 60 °C, affording the corresponding alkylated indoles in mod...

Histamine H2 receptor antagonist are used in the clinical treatment of peptic ulcer. In vitro metaphase analysis and micronucleus assay were used to test the effect of Famotidine & Ranitidine on 60 Cobalt gamma-ray induced clastogenic effects. Heparinised whole blood was obtained from 6 healthy volunteers and was gamma irradiated with 3Gy. Lymphocyte cultures were initiated and aqueous solution...

Hypofractionated radiation therapy has proven effective on locoregional control and tolerance in the adjuvant treatment of breast cancer. The aim of this study is to compare the results of hypofractionated radiation therapy versus conventional radiation therapy in terms of local control and tolerance. It was a retrospective study of patients observations collected from January 2007 to December ...

BACKGROUND There were at least 31,171 metal-on-metal (MoM) hip implants in the UK between 2003 and 2011. Some of these were subject to failure and widescale recalls and revisions followed. METHOD This is a presentation of ten cases (mean age 60 years) where we evaluated neuropsychiatric morbidity following metal-on-metal hip implant failure and revision. Implants were ASR total hip replacemen...

In the present paper, the influence of cobalt additive on the sintering/infiltration behavior of W-Cu composite was studied. For this purpose, the mixed powders of tungsten and cobalt were compacted by CIP method and then sintered at 1450, 1550 and 1600 °C in a hydrogen atmosphere. The sintered specimens at 1550 °C were subsequently infiltrated with liquid copper at 1250 °C for 10, 60 and 1...

The amount of trace elements present in edible bovine tissues is of importance for both animal health and human nutrition. This study presents data on trace element concentrations in semitendinosus and cardiac muscles, livers and kidneys of 60 zebu (Bos indicus) bulls, sampled at Jimma, Ethiopia. From 28 of these bulls, blood samples were also obtained. Deficient levels of copper were found in ...