forest roads are directions in natural habitats that used to transport wood products, secondary forest products and recreation. constructing forest roads causes trees clearing with specified width thus lead to direct or indirect changes in forest ecosystems and forest environment. this study aims to assess the changes of diversity and richness indices in main and secondary forest roads in a par...

monitoring of road traffic noise is becoming an important issue in modern cities due to the spreading of noise pollution and the extension of monitored areas. thus, the stratified spatial sampling is frequently applied to reduce the costs and provide adequate accuracy in order to obtain reliable noise maps. the definition of the strata in the sampling may refer to the legislative classification...

We have assessed the long-term results after operative and non-operative treatment of undisplaced and displaced calcaneal fractures. At a mean of 6.5 years, we reviewed 70 patients with a calcaneal fracture who were divided into four groups: group 1, 18 patients with undisplaced fractures and a normal Böhler's angle (BA) who had been treated non-operatively; group 2, 23 with intra-articular fra...

Open reduction and internal fixation using tension-band wires for displaced olecranon fractures enables restoration of extensor function. We report on 3 elderly patients with a displaced olecranon fracture who underwent open reduction and internal fixation using sutures as the Kirschner wire and tension-band wire and achieved good outcome.

The principal values of the C chemical-shift tensor (CST) for biphenyl have been determined with the FIREMAT experiment. The internal dihedral angle between the benzene rings in biphenyl is estimated to fall between 10 and 20° on the basis of quantum mechanical calculations of the CST principal values. A composite model of motion in the system, with contributions both from internal jumping betw...

Vehicle crashes are amongst the major causes of mortality and results in losses of lives and properties. A large number of the vehicle crashes occur on rural roads. Accidents become more noteworthy in two-lane roads due to going and coming traffic. Therefore, prediction of crashes and their causes are considerably important to reduce the number and severity of the accidents. The safety index is...

Distal clavicular fractures were classified by Neer in 1963. A type II fracture leads to a high rate of delayed union, or nonunion, with undesirable symptoms. Type II distal clavicular fractures usually exhibit superior displacement of the clavicle. We report two cases of distal clavicular fracture with inferior displacement and posterior displacement. Open reduction and internal fixation was p...