Perturbation of spectra properties of 3,4-diphenyl thiophene by polar and non polar solvents

The UV/visible spectra of 3,4-diphenyl thiophene were obtained in various solvents (both polar and non polar). The wave number of transition energies, corresponding molar absorp-tivities and oscillation frequency were determined. Three bands were obtained in solvents such as cyclohexane, propan-2-ol, methanol and ether. Two bands are obtained in n-hexane and 1,2- dichloroethane, while 1,4-dioxane give a single band. Transitions are assigned to these bands according to their shift due to the effect of solvents

Microbiological and chemical assessment of spring water from a rural setting in Ondo State Southwest, Nigeria

Assessment of spring water from Ikare-Akoko, a rural setting in southwest, Nigeria for microbial and chemical contaminants was carried out. Total heterotrophic bacteria count of 4.0 x 106 CFU/mL was highest during the peak of the rainy season in Omi-idu spring (Igbede community) while the lowest population of 0.14 x106 CFU/mL was in Agadagidi spring (Ishakunmi community). The highest coliform population of 2.8 x 106 CFU/mL was at Isunpaiye (Oyinmo community), while the lowest value of 0.19 x106 CFU/mL was recorded at Agadagidi (Ishakunmi). The multiple tube fermentation technique was employed to determine the most probable number (MPN) of coliforms per 100 mL of water sample. The highest MPN/100 mL value of 76 ± 2.1 for coliforms was recorded at Isunpaiye while the lowest value of 5.1 ± 2.1 was in Agadagidi spring. Physico-chemical properties of the spring waters were mostly within the WHO benchmark for potable water. Arae had the highest total dissolved solids (TDS) value of 969 mgL-1 (benchmark, 500 mg/L), total hardness values were normal except at Arae (260 mg/L). Heavy metals levels in the spring water were generally low except in Omi-idu spring.Key words: Rural setting, spring water, heterotrophic bacteria, coliform bacteria, physico-chemical properties, heavy metals

Effect of irradiation and extractive solvents on the Thevetia seed oil

Oil of irradiated thevetia seeds was extracted with different solvents. The effect of irradiation dosages on the extracted oils was studied by comparing the TLC chromatography of irradiated seed oil with that of non-radiated seeds. Saponification values were also compared

Solvents effect on n&#960*and &#960* transition of 9- fluorenone

Absorption spectra of 9-fluorenone had been studied in polar and non-polar solvents. Maximum of four bands were observed; the shift in these band as the solvents were changed from polar to non-polar were noted. The quantitative treatments of the shifts allowed the transition to be assigned as n®p*or p®p*

Approximate Bayesian Computation method for calibrating the Propagation Graph model using Summaries

This code is for learning the parameters of the polarimetric propagation graph model from summaries called temporal moments using approximate Bayesian computation

Deep Learning method for calibrating the polarimetric Propagation graph model

This code is for learning the parameters of the polarimetric propagation graph model from summaries called temporal moments using a deep neural network