through the history and since 1933, the iranian rial has declined from 11.2 rials per dollar to almost 8600 rials per dollar today in the parallel or black market. at the same time the official rate has been kept at artificial level most of the time, not consistent with other macro conditions of the country. historically, however, the central bank has adjusted the official rate and brought it i...

Through the history and since 1933, the Iranian rial has declined from 11.2 rials per dollar to almost 8600 rials per dollar today in the parallel or black market. At the same time the official rate has been kept at artificial level most of the time, not consistent with other macro conditions of the country. Historically, however, the Central bank has adjusted the official rate and brought it i...

Figure 3. Toxicokinetic profiles for PCB-153, PCB-180, and HCB blood concentration for (A) normal body weight history and 10 ng/kg/day exposure to each of these chemicals for a woman who was not breast-fed in childhood (blue line) or breast-fed for 6 months (black line); (B) normal weight (gray line), weight loss (black line), or overweight (blue line) profiles and 10 ng/kg/day exposure to each...

Wakatobi National Park has a tropical marine ecosystem with typically dynamic aquatic resources, and it also has a potentially massive number of groupers such as red (Plectropomus leopardus) and black groupers (Plectropomus areolatus). However, the sustainability of the grouper resources has not been managed effectively and environmentally friendly. This study aims to determin...

We consider the thermodynamic properties of the constant curvature black hole solution recently found by Bañados. We show that it is possible to compute the entropy and the quasilocal thermodynamics of the spacetime using the Einstein-Hilbert action of General Relativity. The constant curvature black hole has some unusual properties which have not been seen in other black hole spacetimes. The e...

In our previous work, using luminosity and the Hβ FWHM as surrogates for black hole mass (MBH), we compared the black hole masses of narrow-line Seyfert 1 galaxies (NLS1s) and broad-line Seyfert 1 galaxies (BLS1s) in a sample of soft X-ray-selected active galactic nuclei. We found that the distributions of black hole masses in the two populations are statistically different. Recent work shows t...

In our previous work, using luminosity and the Hβ FWHM as surrogates for black hole mass (MBH), we compared the black hole masses of narrow-line Seyfert 1 galaxies (NLS1s) and broad-line Seyfert 1 galaxies (BLS1s) in a sample of soft X-ray selected active galactic nuclei. We found that the distributions of black hole masses in the two populations are statistically different. Recent work shows t...

Accreting black holes often show iron line emission in their X-ray spectra. When this line emission is very broad or variable then it is likely to originate from close to the black hole. The theory and observations of such broad and variable iron lines are briefly reviewed here. In order for a clear broad line to be found, one or more of the following have to occur: high iron abundance, dense d...

Rice (Oryza sativa L.) can produce black grains as well as white. In black rice, the pericarp of the grain accumulates anthocyanin, which has antioxidant activity and is beneficial to human health. We developed a black rice introgression line in the genetic background of Oryza sativa L. 'Koshihikari', which is a leading variety in Japan. We used Oryza sativa L. 'Hong Xie Nuo' as the donor paren...