This study describes the identification of Drosophila yellow-f and yellow-f2 as dopachrome-conversion enzymes responsible for catalysing the conversion of dopachrome into 5,6-dihydroxyindole in the melanization pathway. Drosophila yellow -y gene and yellow -b, -c, -f and -f2 genes were expressed in an insect cell/baculovirus expression system and their corresponding recombinant proteins were sc...

The ZnCrFeO4 nanoparticles were synthesized as antiferromagnetic material using sol-gel method. The X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM) certified that ZnCrFeO4 nanoparticles have single-phase cubic structure with a range of 50–100 nm in size. A facile and sensitive analytical method was developed for simultaneous determination of sun...

scholars concern about colors application in poetic images, because color is considered one of the basic principles in images literary aesthetic field. in contemporary literature, poets portray beauty images by colors and indeed the presence of colors in nazok almalaeke poems is one of the basic rhetorical and expressive principles as other contemporary poets. in nazok almalaeke poems white is ...

background: heavy metal pollution in the sediment of the yellow river draws wide attention in the recent years. the yellow river wetland nature reserve of zhengzhou is one of the major wetlands of the river and located at the beginning of the lower reach. in this article, we aimed to investigate the degree and the sources of the metal pollution in the reserve. methods: metals as cu, pb, cr, cd ...

Partial nutritional analysis including total polyphenols, vitamin C, soluble solids (°Brix), sugars and mineral constituents was evaluated for the banana fruits derived from six triploid Musa accessions grown in coastal oasis of south Tunisia. Results showed that pH values ranged 5.44 to 6.01. The °Brix varied between 4.00 g/100 g (Fresh weight) FW ‘Arbi IRA’, 1.33 ‘Lobnani’. Carbohydrates were...

The genotypic variation on physico-chemical characteristics of wild grown plums (Prunus spinosa L.) was investigated. The total phenolic contents were in a range of 117 to 407 mg GAE/100 g FW. The vitamin C was highest in yellow colored fruits (12.10 mg/100 ml). The total soluble solid content varied between 9.40% (yellow colored) and 12.90% (dark purple colored) fruits.  Antioxidant activity o...

1. The yellow fever now in South America, the present yellow fever of Africa and the historic yellow fever of Panama and other American countries are the same disease. This conclusion is based on cross immunity tests in monkeys with strains of yellow fever virus from Africa and Brazil and on tests of sera from 25 persons, who had recovered from yellow fever in various places and at various time...