Proposed changes to the Health and Human Services Guidelines for forensic urine drug testing will lower the required cannabinoid immunoassay cutoff concentration from 100 to 50 micrograms/L. We investigated the effect of this change on the sensitivity, specificity, and efficiency of eight cannabinoid immunoassays: Syva Emit d.a.u. 100; Syva Emit II 100; Syva Emit d.a.u. 50; Syva Emit II 50; Roc...

A combination of atomic force microscopy, scanning election microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron diffraction, and X-ray diffraction were used to study reactions of 0.5–500 mg/L aqueous Pb with Ca5(PO4)3OH, hydroxylapatite (HAP), at pH 6 and 22 8C. Following 2 h reaction time, concentrations of Pbaq ([Pbaq]) decreased from 500 mg/L to ,100 mg/L, ...

Pollen viability and its germination capability for fruit set in are almond and peach essential. To optimize the pollen culture medium of almond and peach and selection of best medium, the present study was carried out with 48 different culture media containing different compositions including diverse levels of boric acid (0 and 100mg/1), calcium nitrate (0,150and300mg/l،), magnesium sulphate (...

A 29-year-old Englishman developed a lump on his head in September 1974. Three months later he presented with nocturia and tiredness. He looked ill, with a fluctuant swelling 3 cm by 3 cm over the right parietal bone; tenderness over the left ribs and lower thoracic spine; and some anterior angulation at D8. Haemoglobin was 6-0 g/dl, white blood count 4-1 x 109/1 (4100/mm3), erythrocyte sedimen...