The association of cytochrome c oxidase negative fibres (COX-negative) and ragged-red fibres (RR-fibres) with work related trapezius myalgia has been proposed. Hitherto studies have been small or without control groups. The aim of the present study was to investigate the prevalences of RR-fibres and COX-negative fibres in female cleaners with (n=25) and without (n=23) trapezius myalgia and in c...

The mechanisms through which plant cells control growth and shape are the result of the coordinated action of many events, notably cell wall stress relaxation and turgor-driven expansion. The scalar nature of turgor pressure would drive plant cells to assume spherical shapes; however, this is not the case, as plant cells show an amazing variety of morphologies. Plant cell walls are dynamic stru...

The study is aimed to investigate physical and mechanical properties of fibres extracted from sansevieria ehrenbergii plant its quality for different textile products such ropes, carpets fabrics in order enhance commercialization utilization the plant. SEF were by means hand decortication leaves determined. Analysis showed that flexible, smooth with mean length 138.48 cm, maximum breaking force...

The necessity to utilise environmentally friendly resources has emerged due environmental management. With the demand for production of plastics and wood materials, pollution increased. Consequently, attraction in natural fibre-reinforced polymer composites (NFPCs) is rapidly emerging construction industry, mainly replace synthetic fibre composites. intensified interest associated with manufact...

Injection moulded composite materials reinforced with wood fibres or particles can offer a credible alternative to other plant-derived fibres, particularly from an economic and environmental point of view. In this study, we compared the recycling behaviour poly-(propylene) composites ground versus flax fibre composites. An experimental numerical approach was used. spite mechanical morphological...

The number of guided modes in optical fibres is an important aspect of their design and characterisation. Some optical fibres, such as microstructured fibres and Bragg fibres, have no strictly bound modes in the same sense as in conventional step and graded index fibres. All modes in these fibres are leaky so what exactly becomes regarded as a mode becomes important.. We propose a method for co...

BACKGROUND In dystrophic mdx skeletal muscle, aberrant Ca2+ homeostasis and fibre degeneration are found. The absence of dystrophin in models of Duchenne muscular dystrophy (DMD) has been connected to altered ion channel properties e.g. impaired L-type Ca2+ currents. In regenerating mdx muscle, 'revertant' fibres restore dystrophin expression. Their functionality involving DHPR-Ca2+-channels is...