First, in 2004 we showed that only six of 13 radio-collared ferrets resident near four observation stations approached to within 8 m of two stations, and only three of the six entered over 8 days of observation. Five of the 15 ferrets available on the 6000 ha study area eluded recapture, although all remained present. Second, in 2006 we monitored the survival of 23 radio-collared ferrets before, throughout and after a 5-week field experiment, using toxic bait deployed in 20 automated bait dispensers distributed over 2554ha. Eight ferrets

entered find more a bait dispenser: four entered but did not take the bait; two did not visit but were killed by secondary poisoning; and nine never entered a bait dispenser. After the experiment, intensive live trapping guided by repeated radio-location surveys retrieved only two of 13 collared ferrets that were definitely still alive on the study area. Inefficiency of trapping wide-ranging

mustelids such as ferrets, stoats (Mustela erminea) and mink (Neovison bison) is probably commonplace, due to lack of opportunity (if animals take longer https://www.selleckchem.com/products/LY294002.html to find or enter a trap than it remains available) and/or to active avoidance (refusal to enter traps or to take bait). Our results provide confirmed examples of both, and help explain why short-term or seasonal control of invasive mustelids is often very inefficient, and eradication unlikely. (C) 2008 Elsevier Ltd. All rights reserved.”
“Carbon fibers must be protected from a high-temperature oxidizing environment because, at approximately 500 degrees C and above, the fibers exhibit reduced mass and strength

stability. The fibers can be protected by the application of thermal coatings, which simultaneously improve the adhesive properties of the carbon fibers in the composite materials. Polysilazanes are a new family of heat-resistant polymer coatings that are converted into silicone carbide or silicone nitride ceramic structures at high temperatures. The converted ceramics are resistant to the effects of high temperatures. In this research work, polysilazane-based coatings were applied to carbon filament (CF) rovings with the dip-coating method. Tensile testing at room selleck kinase inhibitor temperature and under thermal stress was carried out to assess the mechanical and thermomechanical properties of both coated and uncoated rovings. Scanning electron microscopy and energy-dispersive X-ray analysis were performed to evaluate the surface topographical properties of the coated and uncoated rovings. Thermogravimetric analysis was executed to determine the thermal stability of the polymer coatings. The coating performance on the CF rovings was determined by assessment of the test results obtained. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“Since the first publication describing the identification of prostate-specific antigen (PSA) in the 1960s, much progress has been made.