Best disposed of

Article Abstract:

A number of the materials listed in the UK's Deleterious Materials Schedule have been included on the basis of very unreliable evidence. This is the case with marine aggregates, which were thought to have caused damage to aircraft when used in runways. In fact, the damage arose from poor workmanship and not from the marine aggregates. It is now time for interested parties, including property owners and developers, to work together to decide who should manage the Deleterious Materials Schedule and how it should be controlled. Particular attention must be given to removing materials which should not be listed.

Nonmetallic Mineral Product Manufacturing, STONE, CLAY, AND GLASS PRODUCTS, Construction Materials, Laws, regulations and rules, Building materials

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Exoskeletons out of the closet

Article Abstract:

Researchers studying Formica exsecta have discovered that male worker ants control the sex ratio of their colonies by killing queen-laid male larvae. In species where the queens mate twice, the sex-ratio strategy depends on relatedness within the colony.

Research, Behavior, Ants, Sex ratio, Insect societies

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Warm up to winter

Article Abstract:

Big Cedar Lodge, Branson, MO, is a luxurious health spa which offers three days of health and fitness seminars, spa services and mountain repasts in a miraculous setting.

Missouri, Usage, Services, Health clubs, Branson, Missouri, Big Cedar Lodge

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