Background: Hydrocarbons degradation is principally achieved by microorganisms in natural environments. The extent of hydrocarbons biodegradation is mainly conditioned by environmental factors and its success depends on the optimal condition for the crude oil degrading isolates. Objectives: The aims of the current study was to isolate and identify crude oil degrading bacterium from surface sed...

Orthogonal Latin hypercubes (OLHs) are available for only a limited collection of run sizes. This paper presents a simple algorithm for constructing orthogonal designs that are nearly Latin hypercubes. The algorithm is based on the approach developed by Steinberg and Lin for OLH designs and can generate designs for all run sizes for which a Plackett-Burman design exists. The designs have good u...

Proportional representation by means of a single transferable vote (PR-STV) is the electoral system employed in Irish elections. In this system, voters rank some or all of the candidates in order of preference. A latent space model is proposed for these election data where both candidates and voters are located in the same D-dimensional space. The locations are determined by the ranked preferen...

Methotrexate (MTX) being the widely used biologic agent is used to treat severe and/or disabling psoriasis but precipitates various side effects on oral therapy. Encapsulating methotrexate in flexible liposomes for delivery through skin could lead to better therapeutic action and reduce side effects. In order to screen out the various factors during liposome formulation development, Plackett Bu...

A number of nutritional factors influencing glucose oxidase (EC 1.1.3.4) production by Aspergillus niger NCIM 545 were studied. The synthesis of glucose oxidase by A. niger was investigated in two steps using submerged fermentation at 30±2 °C and 180 rpm for 96 h. Primarily, nutritional components were selected by onefactor-at-a-time method, and the significance of each component with respect t...

The objective of the study was to optimize the nutrition sources in a culture medium for the production of xylanase from Penicillium sp.WX-Z1 using Plackett-Burman design and Box-Behnken design. The Plackett-Burman multifactorial design was first employed to screen the important nutrient sources in the medium for xylanase production by Penicillium sp.WX-Z1 and subsequent use of the response sur...

Cellulases are a complex of enzymes necessary for the complete solubilization cellulose in sugars, thus playing key role natural carbon cycle through hydrolysis lignocellulosic structures. The aim this study was to evaluate increase capacity Talaromyces amestolkiae CMIAT 055 produce cellulases by optimizing components culture medium containing banana pseudostem as an inducer, well different agi...