We present instrumental observations of the Tagish Lake fireball and interpret the observed characteristics in the context of two different models of ablation. From these models we estimate the pre-atmospheric mass of the Tagish Lake meteoroid to be ∼56 tonnes and its porosity to be between 37 and 58%, with the lowest part of this range most probable. These models further suggest that some 1300...

In this paper, we examine the applicability and repeatability of a genetic algorithm to automatically correlate horizons across faults in seismic data images. This problem arises from geological sciences where it is a subtask of the structural interpretation of seismic images. Because of the small amount of local information contained in those types of images, we developed a geological model in...

background: type 2 diabetes is an important risk factor for cognitive decline in diabetic patients. the main goal of this study was the assessment of memory, attention and visuospatial ability dysfunctions in patients with type 2 diabetes in comparison to pre-diabetic patients and normal subjects in endocrine and metabolism center of isfahan city from april 2011 to july 2011. methods: the sampl...

ba ck g r oun d & aim: spiritual care is an integral part of a holistic nursing care. providing spiritual care has a positive impact on patients’ health outcomes. although nurses understand the importance of incorporating  patient’s  spiritual  beliefs  into the care practice,  understanding  their  spirituality before addressing the spirituality of patients is also important. therefore, the ai...