There are too many other influences and a lack of experimental control", he said.
"There are no direct measurements of testicular temperature in dolphins," the team noted, emphasizing the lack of experimental proof.
If I had any concerns, they were about my lack of experimental training.
However that key question that cannot yet be answered due to the lack of experimental wells drilled so far and the challenges posed by the UK's high density of population.
Due to the lack of experimental data on soiling indoors, some sheltered cases are included.
Engineers pointed to contradictory evidence and a lack of experimental or observational results.
Our results cannot be compared with experimental values because of a lack of experimental data.
A main problem is, however, the lack of experimental data in the literature.
However, the existing numerical linearization methods of gas force are lack of experimental validation.
However, there is a lack of experimental information as regards the Sn Zn Cu phase equilibria.
Progress is hampered by both a lack of experimental diffusion data and insufficient thermodynamical models.
