Thermal ionization mass spectrometry (T I M S). Fast atom bombardment mass spectrometry (F A B M S). . Inductively coupled mass spectrometry (I C P M S) Electron impact mass spectrometry (E I M S) and gas chromatography mass spectrometry (GCMS). Dosage considerations. Intrinsic or extrinsic tag. Intestinal transit time and study length Endogenously excreted elements .

background: taenia multiceps is a cestode parasite with its larval stage(metacestode), coenurus cerebralis , mainly encysts in the central nervous system of sheep and other livestock causing cerebralis coenurosis. since treatment of coenurosis with chemotherapy showed little effect and surgical removal of cysts is not advisable in field conditions, vaccination is useful to control coenurosis. p...

background: cocaine poisoning is known for causing severe clinical effects such as tachycardia, hypertension, agitation and confusion. absence of clinical manifestations in cocaine poisoning is unusual. case report: a 26-year old man, known to be a cocaine addict, declared that he was forced by cocaine dealers to swallow many tablets of cocaine, six hours prior to admission to emergency departm...

background: the existence of some radionuclides in soil and some building materials produce a β-γ radiation field, which in some regions the exposure of these radionuclides to human is high. materials and methods: the air-absorbed dose, indoor and outdoor annual effective dose of soil and some building material samples (ceramic, granite, gypsum, etc.). the samples were collected from 35 differe...

background: due to the potential public health effects of releases of uranium to the environment, isotopic determination and measurement of this radionuclide in environmental samples is very important. achieving this goal, monitoring programs for this radionuclide seems necessary to be applied in many countries. materials and methods: the uranium was separated from the water samples using anion...

background: natural radioactivity in materials under certain conditions can reach the hazardous radiological levels. so, it becomes necessary to study the natural radioactivity in different materials to assess the dose for the population in order to know the health risks and to have a baseline for future changes in the environmental radioactivity due to human activities. materials and methods: ...

background: the concentrations and distributions of natural and anthropogenic radioactive materials in soils of the site of rooppur nuclear power plant (rnpp) were investigated with the aim of evaluating the environmental radioactivity and radiation hazard. materials and methods: soil samples were collected from 40 locations in and around the proposed site of rooppur power plant and determined ...