Exopolysaccharides (EPSs) are high molecular weight polymers consisting of different sugar residues they are preferable for replacing synthetic polymers as they are degradable and nontoxic. Many microorganisms possess the ability to synthesize and excrete exopolysaccharides with novel chemical compositions, properties and structures to have potential applications in different fields. The presen...

In the membrane distillation bioreactor (MDBR) process, flux increases with increasing feed temperature, but presence of microorganisms limits temperature. Also, accumulation cells and other substances on surface can affect efficiency MDBR. this study, hospital wastewater was treated by thermophilic activated sludge MDBR, initial 7.87 L‧m−2·h−1 stable 3.88 L‧m−2·h−1. The particle size, zeta pot...

EPS geofoam can be used to support highway bridge structures without the aid of deep foundations. The development of this technology is important to accelerate construction on soft compressible soil. EPS geofoam allows for the rapid construction of bridge foundations on such soils without the time and cost involved in installing traditional foundations. Because EPS geofoam is an extremely light...

SOAP, a de-facto communication protocol of Web services, is popular for its interoperability across organisations. However, SOAP is based on XML and therefore inherits XML’s disadvantage of having voluminous messages. When there are many transactions requesting similar server operations, using conventional SOAP unicast to send SOAP response messages can generate a very large amount of traffic [...

It is recognized that microorganisms inhabiting natural sediments significantly mediate the erosive response of the bed ("ecosystem engineers") through the secretion of naturally adhesive organic material (EPS: extracellular polymeric substances). However, little is known about the individual engineering capability of the main biofilm components (heterotrophic bacteria and autotrophic microalga...

Maintenance helps to extend equipment life by improving its condition and avoiding catastrophic failures. Appropriate model or mechanism is, thus, needed to quantify system availability vis-a-vis a given maintenance strategy, which will assist in decision-making for optimal utilization of maintenance resources. This paper deals with semi-Markov process (SMP) modeling for steady state availabili...

Adriana dos Passos Lemos, Carlos E. Peres-Sampaio, Horácio Guimarães-Motta, Jerson L. Silva and José R. Meyer-Fernandes* Departamento de Bioqmmica Medica, Instituto de Ciencias Biomedicas, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundäo, 21941-590. Rio de Janeiro, RJ. Brazil. Fax: (+55) (+21) 270-8647. E-mail: [email protected] * Author for correspondence and reprint requests ...

the effects of hydroalcoholic extract of peganum harmala seeds (eps) on spontaneous rhythmic contractions of isolated rat uterine was investigated in this study. eps was tested on the isolated uterus and endometrium free (i.e. stripped myometrium) preparations. eps was found to exhibit significant spontaneous contractions of the uterus and stripped myometrium relative to the solvent control. af...