The conjecture that the orbit-counting generating function for totally symmetric plane partitions can be written as an explicit product-formula, has been stated independently by George Andrews and David Robbins around 1983. We present a proof of this long-standing conjecture.

Sodium-2-oxo-propanesulfonate (acetone sulfonate) was found to be a competitive inhibitor of acetoacetate carboxy lyase (acetoacetic decarboxylase, EC 4.1.1.4) the KI of which was numerically equal to the K, for acetoacetate at all temperatures investigated. K,,, like Kr in this case is therefore concluded to represent a dissociation constant. AH for the dissociation of either acetoacetate or a...

Petroleum ether extract of Caesalpinia bonduc L. (Roxb) seeds (Family: Caesalpiniaceae) was evaluated for its anti-inflammatory activity in rats. Wistar rats (120-150 g) of either sex were pretreated with petroleum ether extract of seed kernel of C. bonduc. Inflammation was induced in rat paw by injecting 0.1 ml of carrageenan (1% w/v) in subplantar region of right hind paw. Inflammation induce...

Determination of concentrations of sulfur compounds in different petroleum samples is a true analytical challenge. Only analytical procedures based on gas chromatography can meet the sensitivity and accuracy requirements dictated by up-to-date petroleum industry. The objective of this work is to develop the method for the quantifying of sulfur compounds in petroleum hydrocarbon streams. The opt...

Genotoxic responses towards chronic exposure of Chaetoceros tenuissimus and Skeletonema costatum to water accommodated fraction of petroleum hydrocarbons (WAF-P) were evaluated as biomarkers of petroleum hydrocarbons pollution. The DNA damage caused by water accommodated fraction of petroleum hydrocarbons was assessed in terms of the DNA integrity measured by alkaline unwinding assay. The compa...

Sodium-2-oxo-propanesulfonate (acetone sulfonate) was found to be a competitive inhibitor of acetoacetate carboxy lyase (acetoacetic decarboxylase, EC 4.1.1.4) the KI of which was numerically equal to the K, for acetoacetate at all temperatures investigated. K,,, like Kr in this case is therefore concluded to represent a dissociation constant. AH for the dissociation of either acetoacetate or a...

Administration (EIA) provides analyses used to assess proposed energy and environmental policies and to make energy forecast for the Annual Energy Outlook (AEO). The tool used by EIA for these mid to long term forecasts is the National Energy Modeling System (NEMS), a large-scale model of energy supply, demand, prices, and technologies. One component of NEMS is the Petroleum Marketing Module (P...

The wastewater from petroleum industries contains high organic matter content, oil and grease, dissolved solids and turbidity. The petroleum wastewater normally treated in a plant comprising of primary, secondary and tertiary treatments. The high organic loading needs to be treated in biological treatment step. Biological treatment can be suspended growth or attached growth type. Activated slud...

Currently, petroleum hydrocarbons are the most abundantly used chemicals in the world. Manufactured from crude oil, petroleum hydrocarbons are found in gasoline, kerosene, fuel oil, asphalt, and even some chemicals used in home or at work. Almost every person on this planet has once or more used a petroleum product or byproduct. Due to their wide de mand, they are transported all over the world...