This study tested for cross-sectional dependencies between carbon dioxide (CO2) emissions and per capita gross domestic product (GDP) among countries in four regions: Africa, America, Asia, and Europe. When cross-sectional correlations are identified in a group of countries, panel data regression with common factors proposed by Pesaran (2006) is used to determine whether the environmental Kuzne...

the factors that have been influential in the damaging and destroying the iranian historical monuments can be divided into two categories: first, the natural phenomena such as floods, earthquakes, famines, and droughts; and second, human behavior that on some occasions had intentionally or unintentionally caused some damages to the historical monuments. the flawed policies of the rulers that ha...

The study of high-velocity clouds has progressed much since the appearance of the review article by Wakker & van Woerden (1997), less than two years ago. Much of this progress is described in these workshop proceedings. Here we update the review article, summarizing the topics discussed at the workshop as well as covering the recent literature. We follow the outline of the review, describing HI...

the complex formation reaction between iodine with tetrabutylammonium halides (tbax) has been studied spectrophotometrically in chloroform solution at 25ºc. various aspects of the spectra of iodine in the presence of various concentration of different tetrabutylammonium halides have been discussed in terms of electronic specifications of iodine and halides. in the case of tetrabutylammonium iod...