I present a systematic approach to calculating soft-gluon corrections through next-to-next-to-nextto-leading order for arbitrary hard-scattering cross sections. Using a unified approach, master formulas are derived for processes with both simple and complex color flows. Applications and numerical results are given for some processes of interest, including charged Higgs production and top quark ...

for over the past several decades, there has been a great concern about energy crisis and lackof non-renewable resources. residential buildings take more than 25% of the total energy consumption and morethan 75% of energy consumption in these buildings is for heating, cooling and hot sanitary water. on the other hand,traditional buildings of iran were designed according to ecological conditions...

In the last three decades, genre of research article, among other genres of academic writings, hasreceived the greatest attention. This attention is due to the vital role that research article plays inthe legitimating of claims and disciplines. Johns and Swales (2002) relate this attention to theintensive review process that research article goes through before getting “valorized and ratifiedby...

we determined the concentrations of lead and cadmium in edible parts of colocasiaesculenta,amaranthusspp. and ipomoea batata cultivated on farms in industrially polluted sections of nyabugogomarsh (kigali, rwanda) and quantified metal intake by consumers of these crops. we report that metalconcentrations in crops were within eu limits. the highest metal concentrations were found in amaranthussp...