Recent advances in computational methods allow the Characteristic and Acyclic Polynomials of a Chemical Graph to be calculated easily. A consequence of this is that checking for a zero-value remainder after computer assisted polynomial division is sometimes the simplest way of testing suspected factors of a chemical graph. The technique is simple enough to apply on a routine basis when characte...

one of the important aspects of the medicinal plants production is using less chemical inputs. it could be effective for increasing of production and environmental purposes. in order to investigate the effects of application time of integrated chemical fertilizer with cattle manure on growth, yield and yield components of black cumin (nigella sativa l.), an experiment was conducted based on a r...

While clinical transcriptomics methods vary widely, a common characteristic is the need for chemical processing of extremely heterogeneous fluids (e.g., whole blood) prior to analysis. Here, we introduce the first world-to-digital microfluidic (DMF)-based method for chemical processing of RNA in blood. This sample-to-answer system has great potential for rapid characterization of novel and emer...

Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance.

the present study aimed to evaluate the antimicrobial activity of a hetroalkyl oximec synthetic compoundderivative (benzophenone o-4-bromoethyl oxime) against two gram positive and three gram negative bacteria.the antibacterial characteristic of this compound was shown using the circular zone diameter of bacterial growthinhibition by disk-diffusion method. in addition, the random amplified poly...

Motivation The development of in silico models to predict chemical carcinogenesis from molecular structure would help greatly to prevent environmentally caused cancers. The Predictive Toxicology Challenge (PTC) competition was organized to test the state-of-the-art in applying machine learning to form such predictive models. Results Fourteen machine learning groups generated 111 models. The use...

background: fat replacers are ingredients that can replace fat in many foods, therefore,many consumers have limited their dietry intake of fat and calories due to diet and health concerns. objectives: the present study investigated the effect of modified starch on some physico-chemical and sensory properties of low fat hamburger. methods: in this research, modified starch potato, tapioca (acety...

Running droplets have been studied recent years as dissipative macroscopic structures with locomotive capability, a characteristic of which is shared with biological systems. We constructed a numerical model of a droplet that integrates fluid dynamics and chemical reaction. Our results show that the chemical gradient generates droplet’s motion, accompanied with convection flow. This convection ...

Different crystal phase with a same chemical structure, polymorphous, is a specific physical characteristic which determine the end usage of pigments especially in high performance ones. Diketopyrrolopyrrole DPP derivatives, as one of the innovative in heterocyclic pigments, follow this pattern. Synthesis of pigment red 254 in selected crystal phase using ionic liquids was achieved without any ...