The most popular and widely used subtract-with-borrow generator, also known as RANLUX, is reimplemented as a linear congruential generator using large integer arithmetic with the modulus size of 576 bits. Modern computers, as well as the specific structure of the modulus inferred from RANLUX, allow for the development of a fast modular multiplication – the core of the procedure. This was previo...

Telomere clustering is required for the homologous recombination events that maintain chromosome ends in cells relying on alternative lengthening of telomeres (ALT). New data demonstrate that damage signaling at telomeres, a likely step in activating maintenance mechanisms, induces directional movement and synapsis driven by the machinery responsible for recombination in meiosis.

From times immemorial, colorants, and flavorings have been used in foods. Color and flavor are the major attributes to the quality of a food product, affecting the appearance and acceptance of the product. As a consequence of the increased demand of natural flavoring and colorant from industries, there is a renewed interest in the research on the composition and recovery of natural food flavors...

this paper aims to assess the quality and accuracy aster dems and the arcgis alogorthms used for hydrologic analyses. to this end, first the plan of drainage networks in the region was extracted from aerial photographs and high resolution satellite images and was set as the real ground. in the next step, using the hydrology tool in arcgis software, raster networks of the region for the whole ca...

The first solid phase extraction materials for selective lysophosphatidic acid (LPA) enrichment from human plasma are described. Molecularly imprinted polymers were designed, synthesized and evaluated as cartridge fillings. They enabled a relatively rapid and simple extraction protocol for LPA without any need for multiple liquid-liquid extraction steps. The five major subspecies of lysophospha...

this paper examines firms' capital structure and their access to financial debt, notably bank loans. We find that the share of financial debt in total liabilities is, on average, smaller for small firms than for large ones. However, this is not because the typical small firm borrows less than a large firm, but because small firms are more likely not to borrow at all. For firms that do borrow, t...

there are no appreciable amounts of nickel resources in iran; therefore, secondary resources of this element are to be more considered in future. spent nickel catalysts that are used in various industrial processes are one of them. for example nickel catalyst that is used in hydrogenation of edible oil have large amounts of nickel and they are generally supported on porous materials like silica...

inulin is widely distributed throughout the plant kingdom. it has been increasingly used in various foods due to its beneficial nutritional attributes as prebiotic ingredient. the helianthus tuberosus could be a source of inulin, but scarce studies about its extraction exist. ultrasound has attracted considerable interest in food science and technology due to its promising effects in food proce...

introduction: accumulation of free radicals could lead to permanent oxidative destruction of organisms by attacking macromolecules and organelles of the body, thus causing organism aging, fatigue and degenerative diseases. therefore, discovering and developing safe and non-toxic natural antioxidants has been an interesting topic in recent decades. compared to synthetic antioxidants, extracts fr...