Background: Blood loss during spinal decompression and fusion is high and at times more than the patient’s total estimated blood. Increased blood loss may increase the risks of morbidity and eventually length of hospital stay (LOS). Objectives: The aim of this study was to identify predictor factors of blood transfusion requirements and the length of hospital stay in adult patients who underwen...

Purpose: The aim of this study was to compare head and neck alignment in children with visual and hearing impairments and its relation with anthropometrical parameters. Methods: The study was a descriptive, correlational analysis within which the relations between dependent and independent variables have been studied. Thirty children with poor vision, 30 children with hearing loss and fina...

Laser diode beam divergence is the main parameter for beam shaping and fiber optic coupling. Increasing the waveguide layer thickness is the conventional method to decrease the beam divergence. In this paper, the broadened asymmetric waveguide is introduced to decrease the divergence without increasing the optical power. The asymmetric waveguide was used to shift the vertical optical field to n...

Background: Fish meat is outlined with high nutritional value having essential amino acids, unsaturated fatty acids, mineral and vitamins. In this short report, we compared the meat quality of rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta fario) farmed in Bulgaria. Methods: Ten fishes from each species were purchased from a fish farm and their morphological parameters were ...