Interest in airborne smallpox transmission has been renewed because of concerns regarding the potential use of smallpox virus as a biothreat agent. Air disinfection via upper-room 254-nm germicidal UV (UVC) light in public buildings may reduce the impact of primary agent releases, prevent secondary airborne transmission, and be effective prior to the time when public health authorities are awar...

In the wake of Fukushima Daiichi Nuclear Power Plant accident in 2011, radiation and its potential health effects have become a central concern, shaping debates on nuclearity Fukushima. However, residents living former evacuation zone often challenged centrality to their experiences nuclear fallout. Taking seriously efforts move beyond nuclearity, this article elucidates varied concerns for way...

The yield of bacteriophage 643 was increased by infecting cultures of Streptococcus lactis ML3 in late-log phase growth, harvesting the infected cells, and suspending them in fresh, phosphate-buffered minimal medium. The cells lysed after this treatment and produced high titers of bacteriophage. The phage particles were dissociated from debris by 2 M NaCl and purified by differential and CsCl b...

The membrane potential of guinea-pig spermatozoa was investigated by using the fluorescent dye, diS-C3-(5). The potential did not vary when K replaced Na in the suspending medium, and in a physiological salt solution the resting potential was found to be about +13 mV.

Table 1. The eflect of norvaline on citrulline synthesis Rat liver mitochondria (3.0 mg of protein/ml) were incubated in a medium containing lOOmM-KcI, 50mM-Tris/HCI, 1 mMEGTA, 1 mM-ATP, 20m~-succinate, 2pg of rotenone/ml, 5 mM-potassium phosphate, 16.6 mM-KHCO,, 10 mM-NH,CI and 3 m~-[~‘Clornithine (0.5 pCi/ml). After 4 min, mitochondria were separated from the suspending medium by silicone-oil...

A non-uniform AC electric field induces a motion in polarizable particles, called dielectrophoresis. The force responsible for this motion is governed by the dielectric properties both of the suspending medium and of the particles, as well as the geometry of the field. The dielectrophoretic properties of sub-micrometre latex spheres have been studied using micro-fabricated electrode structures....

The persistence of A. butzleri CCUG 30484 on various surfaces under 32% and 64% relative humidity suspended in physiological saline or nutrient broth to simulate relatively clean or soiled conditions was studied using various isolation techniques. Our study revealed that A. butzleri CCUG 30484 cells were able to survive for a considerable period of time, even after the droplet of suspending med...

The use of sucrose solutions as suspending media for preparation of tissue homogenates and subsequent centrifugal fractionation has become a widely accepted procedure. Recently, it has been claimed that addition of colloids to the medium results in better preservation of the morphological and enzymic integrity of the isolated fractions (4, 8, 15). Such media also have valuable applications duri...