In this work, the mechanical characteristics of unidirectional bio-composite materials reinforced by two types natural fibres (sisal andjuncus) were studied in order to develop new materials. The effect fibres’ extraction methods and their assembly techniques on properties elaborated composites was investigated. This is based three extracting fibres: first uses water treatment alone over a long...

Abstract The abundance of aquatic vegetation is increasing in rivers and lakes worldwide. aim this study was to find how the macrophyte Juncus bulbosus Linnaeus affects salmonids benthic macroinvertebrates Norwegian rivers. proliferation J. commenced after development hydropower 1960s 1970s. now considered a nuisance for humans many areas We found higher density juvenile fish density, weight sp...

From 1997 to 1999, we identified seven human cases of infection by fourth stage larvae of Pseudoterranova decipiens in Chile. All identified larvae were coughed up by the patients. Subjects were 10-55 years old; five were female. Some patients complained of coughing, expectoration, pharyngeal pain, nausea or anal and nasal pruritus. Larvae of three patients were coughed up from 36 h to 7 days a...

Constructed, mitigation wetlands in the midwestern United States are frequently dominated by a Typha spp. monoculture and their hydrologies often determined adjustable control structures. Wetlands provide habitat for multiple macroinvertebrate species, which turn food other organisms inhabiting wetlands, such as waterfowl. This study examined impacts of plant diversity manipulated hydrology on ...

The present article describes the heavy metal content (Ni, Pb, Cd) in top plant phytomass: blue marsh bog (Eleocharis palustris (L.) Roem. Schult.), furcular Anemonidium (Anemonidium dichotomum Holub), bayonet rush (Juncus filiformis L.), vetchling (Lathyrus carex acuta (Carex reed canary grass (Phalaroides arundinacea clump speedwell (Veronica longifolia silverweed cinquefoil (Potentilla anser...