Random killings

You are telling me, Sanudo said, that my son-in-law s death was just one of those random killings that so grievously blight our city ... 

The order of sacrifice on the day of cesarean sectioning should be balanced by group (again using random permutations) since fetuses continue to grow during the day and an unbalanced time of sacrifice would bias fetal weights, particularly for rodents. Alternatively, all animals can be killed at about the same time in the... 

Compound (V) is used as an insecticide and is marketed as a 50 per cent solution under the name of hanane, which also contains 5 per cent of O.M.P.A. Hanane properly placed at the roots of cocoa trees kills mealy-bugs in the crown of the tree without harming beneficial insects such as ants which effect pollination. Five hundred trees infested with mealy-bugs were treated 2 10 per cent of the trees, chosen at random, were cut down before treatment and after treatment, and the number of mealy-bugs counted under a binocular microscope. After 6 weeks only thirty-five mealy-bugs were present on the treated trees as opposed to 42,971 counted before treatment in the untreated portion, a reduction of 99-9 per cent. It is well known that several species of mealy-bug, especially Pseudococcus ujalensis, transmit strains of swollen shoot virus, which kill the cocoa tree in 2-4 years. Thus the spread of the disease can be effectively controlled by this systemic insecticide (see also p. 171). 

In the delayed neurotoxicity study (OECD TG 419/OPPTS 870.6100/EU Annex B.38), the animals are observed at least daily for behavioral abnormalities, ataxia, and paralysis, until 14 days after the last dose. Biochemical measurements, in particular neuropathy target esterase (NTE), are undertaken on hens randomly selected from each group (normally 24 and 48 h) after the last dose. Two weeks after the last dose, the remainder of the hens are killed and histopathological examination of selected neural tissues is undertaken. 

Most of these transposons move so that the new location is almost selected at random. Insertion of a transposon into an essential gene could kill the cell so that transposition is somewhat regulated and not frequent. Transposons are one of the simplest molecular parasites. In some cases, they carry gene information that is of use to the host. 

In October 2002, the Washington, D.C.-area snipers who killed 10 people and wounded four brought a new kind of gun terror to the populace. Unlike earlier mass shootings that were horrific but brief in duration, in this instance the killing of people seemingly at random went on for almost a month, with law enforcement officials appearing to be baffled and the targets essentially defenseless. 

October Ten random persons are killed and three injured by Washington, D.C. -area anonymous snipers. The shootings, revealed later to have been done with a high-powered Bushmaster rifle by Lee Boyd Malvo and John Allan Muhammad, are used by gun control advocates to argue for extending and expanding the bans on such weapons. 

In the tests with both California red scale and citrus red mite, untreated lots of fruit selected at random from infested fruit prepared for a given day were held with the treated lots and counted for natural mortality. The corrected percentage of kill for each treatment was calculated by means of the Abbott equation (Jf). 

When hok was placed under the invertible fimA promoter (which randomly switches to constitutive expression by virtue of the fimB and fimE regulators) a stochastic killing was observed, and the population of viable cells in the culture slowly decreased. Unfortunately, the fimA promoter only works in E. coli, and therefore would be of little utility in actual bioremediation scenarios. 

In vivo and in vitro evidence that DNA causes transformation of Streptococcus pneumoniae, (a) Transformation experiment by Griffith. R bacteria are nonvirulent. S bacteria are virulent. A mixture of R bacteria and heat-killed S bacteria is also virulent if transformation has occurred. (b) Transformation experiment by Avery and coworkers. When bacteria from a liquid culture are spread on a semisolid medium, each cell adheres to the medium at random. As... 

During the summers of 1979-1982 traps were placed in open areas near trees killed previously. To evaluate the efficiency of the mass trapping campaign 1 % of the traps were selected at random and their catch counted. The results are shown in Table I (3)... 

Healthy subjects were immunized with the heat-killed J5 vaccine and then-sera harvested. In a multi-center, randomized controlled clinical trial, patients... 

An example of the influence of extraneous aluminum in an in vivo study with animals can be seen in Fig. 16. The graph shows the results of aluminum determination in brain and liver of mice in a study of the effect of aluminum sulfate on delta-aminolevulinate dehydratase from these organs [110], before and after measures to avoid aluminum contamination had been adopted. In a first attempt to check the way to kill the animals and how to digest the samples, the animals were sacrificed with no measures taken to avoid contamination. The results from this experiment, when compared with those after controlling extraneous aluminum as much as possible, show an aluminum level at least 10 times higher. The results also show that, due to the extent and to the randomness of the distribution of the contamination, there are no significant differences between controls and Al-treated animals, when no attempts to avoid contamination are adopted. 

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