In oncological patients with upper gastrointestinal tract tumours, dysphagia and cachexy necessitate gastrostomy or jejunostomy as the only options of enteral access for long-term feeding. In this article the authors describe a modified technique of laparoscopic feeding jejunostomy applied during the staging laparoscopy. A 48-year-old male patient with gastroesophageal junction tumour and a 68-...

MANET is a collection of self organized mobile nodes with dynamic topologies and no fixed infrastructure. DSR is single path routing protocol applied for MANET and gives better performance when routes are not long enough. Its performance depends on different parameters value, like number of nodes and mobile connections. Thus routing efficiency is determined based on two aspects: firstly the tim...

As one of the valve metals (including Ti, Al, Ta, Nb, V, Hf, W), titanium is protected by a thin titanium oxide layer which spontaneously forms on its surface when exposed to air or other oxygen containing environments. This oxide passive layer is typically 2 to 5 nm thick and is responsible for the well-documented corrosion resistance property of titanium and its alloys. Because of this and th...

We designed one-and-a-half-barrel vascularized free fibular flap which is a further modification of the double-barrel technique, and we tried to overcome the discrepancy between mandible and fibula flap. We used this flap in case of a segmental mandibular defect that occurred as a result of a giant cell reparative granuloma excision. This new modification eliminated volume insufficiency of the ...

Based on the similarity of prokaryotic DNA to that of mitochondrial DNA, a rapid and efficient method for DNA purification from mitochondrial extracts obtained from different sources, was carried out based on the modification method described by Marmur (1983) which resulted in a high degree of purity (A260/A280=2). In addition we have applied the same technique for the first time to purify...