this paper presents a new bridge management system (j-bms). it is integrated with a concrete bridge rating expert system that can be used to evaluate the serviceability of existing concrete bridges. the proposed j-bms not only evaluates the performance of bridges, but also offers a rehabilitation strategy based on a combination of maintenance cost minimization and quality maximization. in this ...

Tackling the aquatic stages of anopheline malaria vectors is a key element in integrated vector management (IVM) programmes. The first large trials with Bacillus thuringiensis var. israelensis (Bti) as novel biological control agent demonstrated that its impact can be highly effective, but context dependent. To better understand this dependency, there need to answer fundamental questions on mos...

The emergence of insecticide-resistant mosquitoes strongly challenges the fight against mosquito-borne diseases, in particular malaria. In this paper, we formulate a system of nonlinear difference equations for malaria transmission cycle. Our model incorporates compartments for insecticide-resistant mosquitoes, where mutation is the only evolutionary force involved in the occurrence of resistan...

Abstract Background The exotic invasive tiger mosquito, Aedes albopictus , appeared in southern Switzerland 2003. spread of the mosquito has been surveyed constantly since then, and an integrated vector management (IVM) implemented to control its numbers. measures focus on aquatic phase with removal breeding sites applications larvicides public areas whereas private are reached through extensiv...

malaria is one the major health problem in nigeria. during pregnancy, it poses serious threat to the survival of both unborn foetus and the mothers. this study determined the effect of adequate malaria knowledge and pregnancy status of women on use of mosquito nets and reported malaria fever morbidity.the data were collected during the malaria indicator survey (mis) from 4632 women. data analys...

background: there is very little information about the mosquito fauna of qom province, central iran. by now only three species; anopheles claviger , an. multicolor , and an. superpictus have been reported in the province. to study mosquito fauna and providing a primary checklist, an investigation was carried out on a collection of mosquitoes in this province. methods: to study the mosquito (dip...

The Portsmouth, Rhode Island Mosquito Control Program used granular Bacillus thuringiensis var. israelensis to successfully control salt marsh mosquitoes in a 9 acre salt marsh while monitoring for, planning and implementing small scale open marsh water management in the marsh. Single season larviciding costs were roughly 4% that of contracted open marsh water management in this marsh.