positive control


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positive control

A method of airspace control that relies on positive identification, tracking, and direction of aircraft within an airspace, conducted with electronic means by an agency having the authority and responsibility therein.
References in periodicals archive ?
In vitro phagocytosis of SRBCs was performed in colchicine treated groups, negative and positive control groups by macrophages (Javeed et al.
The PCE/NCE ratio between the negative control group and the positive control group had no significant difference (Table-1).
In order to study this, about 30ng of human genomic DNA was also added to each PCR in separate PCR reactions when using the various dilutions of ABI Toxoplasma gondii (RH strain) quantitated DNA as positive control.
Results showed that the mutagen MMS as the positive control (T3) had the highest incidence of micronuclei formation in the experiment while the genotoxic treatment (T4) at 500 ppm including the negative control treatments (T1 and T2) had the lowest micronuclei counts.
Therefore, rabbits in the CS-PRP group were implanted with 1000 mg of CS and 240 [micro]l of PRP; rabbits in the CS group were implanted with 1000 mg of CS and 300 [micro]l of double distilled sterile water; rabbits in the PRP group were implanted with 240 [micro]l of PRP that was activated by thrombin and CaCl[sub]2; and rabbits in the positive control group were implanted with 5 [micro]g rhBMP-2 (obtained from the Academy of Military Medical Science, Beijing, China) and 6 mg decalcified bone matrix (obtained from Institute of Orthopaedics, Chinese People's Liberation Army General Hospital, Beijing, China).
Table 1 presents the Mitotic Indices obtained for the Positive Control, Negative Control and Jatoba Control treatment groups at concentrations of 0.
France and Russia all maintain such communications capabilities for ensuring positive control of their submarines at sea," he said.
2gm were compared with mean inhibition zone of their respective positive control against the three selected microorganisms, it was found that mean inhibition zone of both M1 and M2 miswak at 0.
They found that those in the positive control condition and the neutral control condition were not significantly different.
The next level up in our example system would be a PCR positive control, analogous to our negative amplification control.

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