PURPOSE Allergic sensitization among workers exposed to sisal is scarcely documented. We examined whether sisal processing is associated with IgE sensitization and its relationship to the prevalence of respiratory symptoms among Tanzanian processors. METHODS 138 sisal exposed workers and 78 non-exposed controls were skin prick tested (SPT) using dry sisal extract and fresh sisal sap. Sera fro...

Emphasis on the advancement of new materials and technology has been there for the past few decades. The global development towards using cheap and durable materials from renewable resources contributes to sustainable development. An experimental investigation of mechanical behaviour of sisal fibrereinforced concrete is reported for making a suitable building material in terms of reinforcement....

Nicholls, P. J., Evans, E., Valic', F., and ;uskin, E. (1973). British Journal of Industrial Medicine, 30, 142-145. Histamine-releasing activity and bronchoconstricting effects of sisal. Extracts of dry and oiled sisal released histamine from pig and human but not from rat lung tissue. A suspension in Tyrode solution of the oil used for softening the sisal fibres had a pH of 8-1 and also releas...

We present a formal deenition of the dynamic semantics of a signiicant part of the language Sisal 2.0 in the structural operational style of Natural Semantics, using Ty-pol inference rules within the Centaur system, a generic speciication environment. Sisal is a strongly typed, applicative, single assignment language in use on a variety of parallel processors, including conventional multiproces...

This paper presents the effect of sisal fibers on the unconfined compressive strength of bentonite. The present study is aimed at determining the behavior of bentonite-lime-phosphogypsum reinforced with sisal fibers in a random manner. The sisal fiber content was varied from 0.5 to 2 %. The results indicated that the unconfined compressive strength of bentonite can be increased by the addition ...

In this work, nanofibrillated cellulose (NFC) has been evaluated as a potential reinforcement for cement mortar composites. Two types of vegetable fibres with different composition and properties (cellulose content and microfibrillar angle), sisal, and cotton linters pulps, were initially characterised in order to assess their reinforcing capability. Sisal pulp was found to be most suitable as ...

Lung function was measured by spirometry in 66 workers in a sisal ropemaking factory, and in their matched controls. The major atmospheric contaminant was the lubricant (or a component part thereof) used to soften the fibre. The concentration of airborne matter was generally less than 1 mug m--3. There was no difference in lung function between the two groups before the start of the working shi...

A study was carried out to test sisal (Agave sisalana Perrine) fiberboards properties as building materials against Asian subterranean termite, Coptotermes gestroi (Wasmann). Evaluation was in the laboratory according to the JWPA Standard-TW-S.1-1992. To improve mechanical properties of fiberboards made from sisal fibers, the boards were overlaid by rubber veneer, betung bamboo matting or formi...

We present a formal deenition of the dynamic semantics of arrays in the functional language Sisal 2.0. We adopt a logical setting: the structural operational style of Natural Semantics, using the Typol inference rules within the Centaur system, a generic programming environment. From the formal speciications, a development and visualization environment for Sisal programming is generated. This s...

In order to assess the eeciency of strict functional programming, a complex Monte Carlo Pho-ton Transport Simulation code called MCP has been written in Sisal. Performance assessment has been started, with initial numbers that show that Sisal is about 6 times slower and uses about 2.5 times more space than C for this problem. Future work will include a detailed analysis to determine where the S...