خوش رنگ و خوش نما ہے وُہ گنبد جو سبز ہے
آنکھوں میں بس رہا ہے وُہ گنبد جو سبز ہے
اِس نامۂ سیاہ کے بدلے پنہ کہاں؟
ہاں ایک آسرا ہے وُہ گنبد جو سبز ہے
چہرے پہ جو لکھی ہے وہ زردی ہے خوف کی
آنکھوں میں تیرتا ہے وہ گنبد جو سبز ہے
دل بھی سفید رنگ کبوتر ہے آس کا
یہ بھی تو ڈھونڈتا ہے وُہ گنبد جو سبز ہے
نیلاہٹوں میں غرق ہے مسموم ہے فضا
تریاق بانٹتا ہے وُہ گنبد جو سبز ہے
میرے لہو سے سُرخ ہے عابدؔ یہ راہِ شوق
مجھ کو بُلا رہا ہے وُہ گنبد جو سبز ہے
White gold is a man-made bright, white and antioxidant compound, made by mixing platinum and palladium in gold or silver, nickel and some copper in gold, and when yellow gold is added to the various metallic compounds above, it turns white. White Gold was invented in the early 19th century, then it was a mixture of platinum and palladium, but nowadays white gold is a mixture of nickel, platinum, palladium and magnesium, while sometimes it contains copper, zinc and silver. It turns white with color. First White Gold was introduced by Germany in 1912 for sale in the market and then by 1920 White Gold gained popularity as an alternative to platinum. Nowadays white gold is more popular, more favored and is more expensive than yellow gold. White gold is actually yellow gold, with addition of various metals it turns to white so it will apply all the rules that Islam has applied to gold and it is not permissible for a Muslim man to wear its ornaments. However, it is permissible for a woman to wear all kinds of jewelry and Zakat will be obligatory on the man and woman who have the white gold according to the quantity limit prescribed by the prophet (SAW).
Analysis of the genome sequence of Pyrobaculum calidifontis revealed the presence of an open reading frame Pcal_1127 annotated as ribose-5-phosphate pyrophosphokinase. To examine the properties of Pcal_1127 the coding gene was cloned, expressed in Escherichia coli, and the purified gene product was characterized. Pcal_1127 exhibited higher activity when ATP was replaced by dATP as pyrophosphate donor. Phosphate and EDTA activated the enzyme activity and equivalent amount of activity was detected with ATP and dATP in their presence. Recombinant Pcal_1127 could utilize all the four nucleotides as pyrophosphate donors with a marked preference for ATP. Optimum temperature and pH for the enzyme activity were 55 °C and 10.5, respectively. A unique feature of Pcal_1127 was its stability against temperature as well as denaturants. Pcal_1127 exhibited more than 95 % residual activity after heating for 4 h at 90 °C and a half-life of 15 min in the boiling water. The enzyme activity was not affected by the presence of 8 M urea or 4 M guanidinium chloride. Pcal_1127 was a highly efficient enzyme with a catalytic efficiency of 5183 mM−1 s−1. These features make Pcal_1127, a novel and unique ribose-5-phosphate pyrophosphokinase.