Euthanasia is one of the controversial topics in current medical ethics. Among the six well-known types of euthanasia, passive voluntary euthanasia (PVE) seems to be more plausible in comparison with other types, from the moral point of view. According to the Kantian framework, ethical features come from 'reason'. Maxims are formulated as categorical imperative which has three different version...

dynamically stable biped robots mimicking human locomotion have received significant attention over the last few decades. formerly, the existence of stable periodic gaits for straight walking of passive biped walkers was well known and investigated as the notion of passive dynamic walking. this study is aimed to elaborate this notion in the case of three dimensional (3d) walking and extend it f...

background: radon and its daughters are amongst the most important sources of natural exposure in the world. soil is one of the significant sources of radon/thoron due to both radium and thorium so that the emanated thoron from it may cause increased uncertainties in radon measurements. recently, a diffusion chamber has been designed and optimized for passive discriminative measurements of rado...

background: separate radon and thoron measurements in soil are very important in assessment of internal exposure due to inhalation of such radioactive gases. materials and methods: in this study, a low cost, small size, passive diffusion chamber has been developed for simple measurement of radon-222 and radon-220(thoron) gases separately in soil. the diffusion chamber consists of two films and ...

Electrical parameters of spinal motoneurons were estimated by optimizing the parameters of motoneuron models to match experimentally determined impedance functions with those of the models. The model was described by soma area, somatic and dendritic membrane resistivities, and the diameter of an equivalent dendritic cable having a standard profile. The impedance functions of motoneurons and opt...

introduction: commitment of staff is intangible asset that can highly provide better services. since providing healthcare services is only possible through efficient human resources, this study evaluated the association between person-organization fit and organizational commitment of staff in university hospitals of tehran university of medical sciences, iran. methods: this was a descriptive an...