Introduction: Internal exposure to radon gas progeny can lead to serious biologic damages to the lung tissue. The aim of this study was to evaluate the absorbed dose by lung tissue due to the exposure from short-lived radioactive products of radon (222Rn) decay using Monte Carlo simulation. Material and Methods: A lung equivalent p...

Excitatory postsynaptic currents (EPSCs) at the parallel fiber and climbing fiber to Purkinje cell synapses were studied by whole-cell clamping Purkinje cells in cerebellar slices. Reducing glutamate release with adenosine or GABA decreased the amplitude of the EPSCs, with a larger suppression being produced at the parallel fiber synapse. Reducing glutamate release also speeded the decay of the...

The decay of fecal bacteria in surface water often follows a biphasic pattern with the apparent first-order rate constant relatively high during a first phase and lower in a second one. This could be the result of population heterogeneity in resistance due to various mechanisms different strains, genetically or nongenetically differentiated cells, different growth or cell cycle stage, clumping,...

in this research we described the effective hamiltonian theory and applied this theory to the calculation of current-current (q1,2) and qcd penguin (q3,…,6) c quark decay rates. we calculated the decay rates of semileptonic and hadronic of charm quark in the effective hamiltonian theory. we investigated the decay rates of d meson decays according to spectator quark model (sqm) for the calculati...

objective(s): haemostasis prevents blood loss following vascular injury. it depends on the unique concert of events involving platelets and specific blood proteins, known as coagulation factors. the clotting system requires precise regulation and coordinated reactions to maintain the integrity of the vasculature. clotting insufficiency mostly occurs due to genetically inherited coagulation fact...

many constants and coefficient effect on the modeling results. in many cases, it is possible these constants and coefficients differ from their real values in the environment, but the modeling results adapted with real boundary conditions due to other factors adjustment during modeling. uncertainty analysis is a tool for assessing the effect of uncertainty of various factors on the modeling res...

We analyze three-body decays of and . Under the factorization approach, there are tree level diagrams for these decay modes and the transition matrix element of decay is factorized into a form factor multiplied by decay constant and form factor multiplied into weak vertices form factor. The transition matrix element of decay is also factorized into a form factor multiplied into weak vertic...

118 dentistry students were studied to show the possible correlation between ph, concentration of ca2+, p3+, na+, and k+ of saliva and decay, missing, and filling tooth (dmft index). candidates were between 20 and 30 years old and had no background systemic disorders; medial and dental histories, age, sex, and dmft index were recorded in a questionnaire organized for this purpose. saliva sample...

A region of resistive domains is found in composite superconductors with thermal and electrical contact resistance between the normal metal matrix and the superconductor. The V-I characteristic of 3 sample with resistive domains is found. It is shown that the existence of resistive domains leads to the emergence of hysteresis upon decay and recovery of superconductivity in the presence of trans...