CR-39 plastic detector chips suspended in the vapor over the electrolytic solution during electrolysis record the tracks of highly energetic charged particles. The probability that the track densities found in these detector chips and the generally smaller track densities found in controls belong to a common population is 3 x 10-10 by the Mann-Whitney statistical test. It is therefore concluded...

this research that was made on 66 cyclones in wet periods of midwest of iran in a given period (1973-2003) shows that in intense wet periods, cyclogensis centers of mediterranean sea, sudan, red sea and mesopotamia were severely active and have been very effective in rainfall of study area. such systems in general, with respect to dominant synoptic patterns, enters into study area from three ma...

conclusions tram tracks on public roads are potentially dangerous and can lead to serious injuries and even mortality amongst cyclist. operative intervention is frequently needed. background in cities with trams as public transportation, tram tracks are often on public roads, creating a shared road situation with other road participants like cyclists. beside the risk of direct collisions, this ...

The diffusion of defects (e.g., vacancies and interstitials) elements used for dating He Pb) in a mineral structure is thermal process: This the primary assumption to determine age history minerals. For instance, reconstruction, through number length distribution tracks produced by spontaneous fission 238U, obtained assuming event be only energy source shortening tracks. Here, we report new, no...

Some unusual structures on the surface of metals and films (various x-ray films and nuclear emulsions ) caused by exposure to bombardment by low-energy ions in glow discharge plasma, in electrolysis and other low-energy processes (when energy of particles doesn’t exceed several keV) have been found. The mechanism and model of the strange tracks formations and explanation of their structure chan...

I N R E C E N T years Dr. Herman J. Schaefer 3 has shown that heavy primary cosmic ray particles can be expected to produce ionization tracks as long as several millimeters in living tissue. These tracks reach central ionization intensities of thousands of roentgens, and significant radial radiation to the order of cell diameters. Since no particle can be accelerated artificially to compare dir...

For a single ion hit facility built to irradiate specific targets inside biological cells, it is necessary to prove that the ions hit the selected targets reliably as the ion hits usually cannot be seen. That ability is traditionally tested either indirectly by aiming at preetched tracks in a nuclear track detector, or directly by making the ion tracks inside cells visible by a stain coupled to...

For a single ion hit facility built to irradiate specific targets inside biological cells, it is necessary to prove that the ions hit the selected targets reliably as the ion hits usually cannot be seen. That ability is traditionally tested either indirectly by aiming at preetched tracks in a nuclear track detector, or directly by making the ion tracks inside cells visible by a stain coupled to...

It has been suggested that 3 to 5% of total lung cancer deaths in the UK may be associated with elevated radon concentration. Radon gas levels can be assessed using CR-39 plastic detectors which are often assessed by 2-D image analysis of surface images. 3-D analysis has the potential to provide information relating to the angle at which alpha particles impinge on the detector. In this study we...