That lack of documentation left open the possibility that the initial positive HIV test could have resulted from contamination of the infant's blood sample in the laboratory or an inadvertent mixing of specimens.
The geographic mix of sampled specimens within the recognised monophyletic group I and II, of A. bipustulatus indicates that the Pyrenees and Alps have not acted as dispersal barriers in the interglacial periods, which is argued to be a major potential isolation barrier for the Iberian water beetles [31].
Additional testing and investigation by the study sites, the international investigators and ICRL could confirm that the results of the first collected specimens were false positive reactions, and that no mixing up of specimens or clerical error had occurred.
The cause of outliers was probably due to mixing up of specimen tubes or contamination of samples resulting from unfamiliar handling of multiple samples, although this was not easily determined [ 15, 16].
According to the mix proportions in Table 1, for each mix proportion, ten groups of specimens were prepared.
At each concrete mix, the aspect ratios of specimens with circular or square sections were 1.0 and 2.0.
For each concrete mixing, the aspect ratios of specimens with circular or square sections were 1.0 and 2.0, while the lateral dimensions of specimens varied from 50 mm to 400 mm.
To develop the optimal mix design, specimens of stabilized peat were tested in unconfined compression, direct shear and falling head tests.
Group II (20 specimens): Mix of equal weight (1 1 1) of ground metronidazole (UPL, Ankleshwar, Gujarat, India), ciprofloxacin (Apex Pharmacy, Petaling Jaya, Selangor, Malaysia) and minocycline (YSP, Kuala Lumpur, Selangor, Malaysia) was mixed with sterile saline in a ratio of 1.5 1 (wt/vol) to obtain a paste like consistency.
In this study, two types of concrete mixes were used for preparation of specimens.
