new edible composite films formed from salep (orchis mascula) and 10%, 20%, and 30% (w/w) oleic acid were prepared by emulsification with the aim of improving the water vapor barrier and mechanical properties of the film. as oleic acid concentration increased up to 30% (w/w), oxygen permeability (27%), elongation at break (86%) and thickness (2%) of salep films increased significantly and the t...

1. Lake Rodó is a turbid system, a condition attributed to algal biomass. The proximal source of the eutrophication was stormwater discharges from an ill-defined urban area. This paper describes an attempt to restore the water quality of Lake Rodó, the first time this has been done in Uruguay. In spring 1996 it was drained, sediments were removed and stream inputs were diverted. Groundwater was...

During investigations of an inundated opencast sulphur mine (an open, deep water habitat with a relatively small littoral area) only five species of breeding water birds were recorded. The density of breeding great crested grebes Podiceps cristatus was relatively high (c. 1.0-1.1 pairs 10 ha of water, and 1.6-1.8 pairs ha of the macrophyte area) although fish density was very low. High water tr...

France is currently embarking upon a drastic reform of quantitative water resources management. This reform relies on two principles: the definition of an upper limit to water abstraction per water body and the decentralization of the responsibility for allocating water among users, in particular in the agricultural sector. This paper looks at possible institutional arrangements and incentive-b...

Trends in data from recent years show movement toward eutrophication in Otsego Lake; these include increasing total phosphorus and resultant increasing chlorophyll a concentrations, decreasing Secchi transparency readings and decreasing hypolimnetic oxygen concentrations(Harman et al., 1997). The increase in phosphorus has triggered the changes in chlorophyll a, Secchi transparency, and dissolv...

Trust, along with transparency, is an important indicator of a satisfactory relationship between a government and the public. Considering transparency as the key to trust in government, the purpose of this paper is to postulate a link between transparency and trust taking into account satisfaction as a psychological factor. This paper tries to find the answer of these questions: “Is there...

PURPOSE Recent studies have shown that rabbit corneal keratocytes abundantly express two water-soluble proteins, transketolase (TKT) and aldehyde dehydrogenase class 1A1 (ALDH1A1), in vivo and that these proteins may contribute to corneal transparency at the cellular level. The purpose of this study was to determine the relationship between the expression of these proteins and the development o...

full, on-time, and with quality disclosure of financial information can lead to the transparency of such information and decreases information asymmetry. among the published information of firms, earnings are of priority importance attended by many users; therefore, the issue of the transparency of accounting earnings is of high importance. the aim of this study is investigating the accounting ...

The effects of the duration of the floods on abiotic variables and attributes of species tolerant and intolerant to hypoxia (STH and SIH respectively) were evaluated in rivers and lakes of the upper Paraná River. Fish were sampled once a year, in six sampling stations, during the high water period from 2000 to 2003. There were overall reductions in dissolved oxygen levels and increases in trans...