Microbes and associated soluble and volatile chemicals on periodically wet household surfaces

Microbes and associated soluble and volatile chemicals on periodically wet household surfaces

BACKGROUND Microorganisms influence the chemical milieu of their environment, and chemical metabolites can affect ecological processes. In built environments, where people spend the majority of their time, very little is known about how surface-borne microorganisms influence the chemistry of the indoor spaces. Here, we applied multidisciplinary approaches to investigate aspects of chemical micr...

Specialty chemicals from microbes

Synthesis gas, that consists largely of carbon monoxide, carbon dioxide and hydrogen, has been used in a process to make the commodity chemical, 2-hydroxybutyric acid. This news report discusses a proposal to alter regulations of materials and products involved in using synthetic biology to make chemicals. Genetic engineering can be complex and time consuming. This research paper describes an a...

on semihypergroups and hypergroups

in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...

Genesis and distribution of palygorskite and associated clay minerals in rafsanjan soils on diferent geomorphic surfaces

compactifications and function spaces on weighted semigruops

chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...