Over 3,000 samples of plastic litter have been retrieved from 12 pebble beaches around the shores of Lake Geneva. The plastic stock consisted of identifiable objects of various size and color, including bottles, bottle tops, cotton buds, pens, toys, and straws, an heterogeneous assortment of fragments whose origin was either discernible or unknown, and pieces or blocks of expanded polymer (poly...

over the years, the use of plastics has complicated the problem of disposal of solid wastes. one strategy to reduce plastic waste is the use of biodegradable plastics. a group of these plastics are polyhydroxyalkanoates (phas). to date more than 250 different microorganisms are known to synthesize and accumulate pha. most pseu-domonas strains are able to accumulate mcl-pha. in previous studies,...

a b s t r a c t mortality and morbidity from trauma continues to be a serious, ubiquitous public health problem. our short communication reports on the benefits of a dedicated lower limb trauma coordinator (lltc) to the trauma service of a busy inner-london plastics unit. this is based on a retrospective case-note based audit; performed 19 months prior to the introduction of the lltc and for 16...

A 379 should include UV exposure, even absent specific FDA requirements. Our resin data (resins P1. P2, P3, P4, P19, and P18) cited by Kelce and Borgert came from at least three replications of stress­ ing, extraction, and EA assays. As described in our " Methods " and " Supplemental Material, " the assay variance was very small: SEs were typically smaller than the diameter of the data points o...

The materials requirement inside a magnetic gradiometer is stringent because the presence of magnetic susceptible material will introduce intrinsic errors into the device. Many commercial grade non-magnetic materials still have unacceptably high levels of magnetic susceptibility between 10 and 10. It is shown here that machining with steel tools can further increase the susceptibility by up to ...

A review of paint hazards is made, giving brief descriptions of methods of application in use in 1965, of paint usage according to resin base, and of paint ingredients. The most interesting and complex of these are the resin bases, which have much in common with plastics. Reference is made to some of the many minor ingredients. The problem of keeping abreast of the possible toxic effects, so th...