W hen will it be done? " Senior managers will ask their software project managers this question more than 250,000 times this year. Corporations, which collectively commit over US$300 billion annually toward new software project initiatives, 1 will want to know the answer. However, when you consider Barry Boehm's claim that early software life-cycle estimates vary by a factor of four (25 to 400 ...

background: noise is one of the annoying agents in the environment and it is harmful agent in workplaces that its occurrence with work load, there are in many workstations. the aim of this study was to determine the combined effects of exposure to noise and work load on heart rate changes. methods: this cross-sectional study performed on 14 male students into climatic chamber in 2011.the mean ±...

introduction: the preoperative diagnostic evaluation of the parotid lesion is a valuable aid in planning the operation and the approach to intervention. among different diagnostic tools, fine needle aspiration has a key role. however, the exact efficacy of this technique in our center had not been thoroughly investigated. materials and methods: between january 2000 and june 2007 a subset of 64 ...

In this paper the intake manifold as the most effective part on engine’s volumetrice efficiency is in vestigated in detail with emphesizing on flow behavior and characterestics. The eight different design have been  prepared  and  imported to CFD software. Five objective functions for investigation of flow have been connsidered and applied in TOPSIS with different weights. Mass flow rate,massfl...

computational intelligence approaches have gradually established themselves as a popular tool for forecasting the complicated financial markets. forecasting accuracy is one of the most important features of forecasting models; hence, never has research directed at improving upon the effectiveness of time series models stopped. nowadays, despite the numerous time series forecasting models propos...

Random-bred Swiss mice were bred selectively for their agglutinin responses to sheep and pigeon erythrocytes to obtain high and low responder lines for those antigens (1). After 20 generations, the two lines differed markedly in their mean agglutinin titers against sheep erythrocytes and were considered established, since the difference in agglutinin response could not be increased by further b...