Today, tourism is one of the fastest growing sectors economy and a key driver social economic progress throughout world. Tourism an important factor for gettingnew jobs, growth country, environmental protection preservation, overcoming poverty. This possible only under condition responsible management planning tourist recreation areas. Otherwise, traditional can cause significant negative impac...

The advantages and disadvantages of subsurface drip irrigation (SDI) as compared to alternative irrigation systems are conceptually discussed. Each category (advantages and disadvantages) is subdivided into three groups: 1) Water and soil issues; 2) Cropping and cultural practices, and 3) System infrastructure issues. The adaptation and adoption of SDI systems into diverse cropping systems, geo...

Theory for the evolutionary properties of recombination is reviewed both in terms of modi er genes and approaches that use group selection Analytical and numerical methods are used to investigate the time to rst appearance of an advantageous two locus chromosome On average whether or not a double mutant chromosome is advantageous it will appear for the rst time faster with recombination than wi...

Difficult or unsuccesful tracheal intubation is one of the important causes for morbidity and mortality in susceptible patients. Almost 30% of the anesthesia-related deaths are induced by the complications of difficult airway management and more than 85% of all respiratory related complications cause brain injury or death. Nowadays, due to the advances in technology, new videolaryngoscopic devi...

The history of oxytocin in obstetrics varies from a very liberated use without almost any fear for danger or disadvantages to an almost complete condemnation of the use of this drug. Oxytocin was especially discredited by the intramuscular route of administration. On the other hand caused the intravenous administration by Infusion pump a very liberated use of this drug finally resulting in the ...