The family of logistic type distributions has been widely studied and applied in the literature. However, certain estimation problems exist some members this family. Particularly, three-parameter I generalized distribution presents these problems, where parameter space must be restricted for existence their maximum likelihood estimators. In paper, motivated by complexities that arise inference ...

Nowadays, in the given conditions of Uzbekistan, there is hardly any comprehensive technology either for processing industrial waste or extraction rare and precious metals at JSC “AGMK” with small amounts metals. The presence man-made containing platinum, palladium rhodium AGMK indicates that plant can manage industry, having been several years without recycling ore. This article discusses feas...

Insight about the operation of froth flotation through modelling has been in existence since early 1930s. Irrespective numerous industrial models that have developed over years, metallurgical outputs often do not involve pulp chemistry variables. As such, this work investigated influence variables (pH, Eh, dissolved oxygen and temperature) on prediction performance rougher copper recovery using...

Due to the growth of man-caused pollution, there is a need use modern methods water purification. It advisable sorption for extraction heavy metals, which are considered be particularly dangerous. established that sorbents based on magnetite quite effective in copper ions. shown capacity magnetite-based towards ions depends ratio concentrations Fe 2+ and 3+ reaction mixture, increases with incr...

Abstract Apart from many lost wax cast metal fragments, crucible fragments and several heated sediment nodules were found at the Chalcolithic site Fazael 2 (central Jordan Valley). Petrographic investigations on revealed features characteristic of Southern Levantine casting moulds. Heating temperatures assessed using infrared spectroscopy, showing that did not vitrify clay fraction in Consequen...

Food security is a high-priority issue for sustainable global development both quantitatively and qualitatively. The increasing contamination of heavy metals in vegetables attributed to multiple pathways, such as industrial emissions, sewage sludge discharge, agrochemicals fertilizers abuse, it has become serious worldwide, especially developing countries. CopşaMicăhad the reputation being most...

There is considerable evidence that transcription does not occur homogeneously or diffusely throughout the nucleus, but rather at a number of specialized, discrete sites termed transcription factories. The factories are composed of ~4-30 RNA polymerase molecules, and are associated with many other molecules involved in transcriptional activation and mRNA processing. Some data suggest that the p...

The basic structural elements of chromatin and chromosomes are reviewed. Then a model involving only three architectural motifs, nucleosomes, chromatin loops and transcription factories/chromomeres, is presented. Loops are tied through transcription factors and RNA polymerases to factories during interphase and to the remnants of those factories, chromomeres, during mitosis. On entry into mitos...

Essential metal concentrations in the blood are an important measure for monitoring environmental and workplace exposure to metals. The determination of this training. To conclude range zinc (Zn), lead (Pb), copper (Cu) manganese (Mn) 50 men working factories doors windows etc. For long period with 20 healthy as controls not occupation. study found increase toxicity rates aforementioned metalli...

The evolution of B-Factories is discussed, and comments are made about the common features of present-day asymmetric storage ring collider designs. * Work supported by Department of Energy contract DE-AC03-76SF00515. Presented at the 4th International Symposium on Heavy E’lavour Physics, Orsay, France, June 25-29, 1991 There was a symposium Progress on B-Factories the day before the Heavy Flavo...