Abstract Drilling along the coal seam is an effective method for large-scale gas control. The distribution law of stress field determined by parameters affecting drilling seam, thereby drainage effect seam. In order to study and borehole residual plastic zone, radius softening radial displacement body on hole wall axial range are used construct calculation model sealing length; strength establi...

Introduction During the 1980s, the beef slaughtering industry became increasingly concentrated. In 1980 the four largest packers slaughtered 36% of fed cattle nationally and marketed 53% of boxed beef. By 1989 the four largest firms slaughtered approximately 69% of the fed cattle and marketed more than 80% of the boxed beef (Purcell 1990a; Lambert 1990). Concentration is even higher in some reg...

Carotenoids are a family of natural fat-soluble nutrients important for antioxidant defense (Packer, 1992, 1993; Cadenas and Packer, 2002) found throughout the plant kingdom. They are responsible for the red, orange or yellow color of many fruits and vegetables, such as pineapples, citrus fruits, peaches, nectarines, persimmons, tomatoes, papaya, apricots, carrots, watermelons, pumpkins, squash...

To the Editor: As a health technology assessment body committed to active patient and public involvement, we at the Scottish Medicines Consortium (SMC) have considered the question above and the views expressed by Dr. Claire Packer and conclude that the answer is “Yes.” As Dr. Packer notes, no patient representative can ever be purely a patient with a specific condition as everyone brings other...

Return-oriented programming (ROP) is an attack that has been shown to be able to circumvent W ⊕X protection. However, it was not clear if ROP can be made as powerful as non-ROP malicious code in other aspects, e.g., be packed to make static analysis difficult, be printable to evade non-ASCII filtering, be polymorphic to evade signaturebased detection, etc. Research in these potential advances i...

Neofidelia apacheta Dumesh and Packer, sp. nov., N. camanchaca Dumesh and Packer, sp. nov., and N. submersa Dumesh and Packer, sp. nov. are described from northern Chile. Neofidelia apacheta is known from large numbers of specimens and localities at moderately high elevation (1600-3200m). Neofidelia camanchaca is only known from the ho-lotype male. Neofidelia submersa is known from the holotype...