Drosophila melanogaster presents a powerful system for dissecting the genetic basis of behavioral phenotypes, since both the genetic background and environmental conditions can be controlled and behaviors accurately quantified.
In the SHIV macaque model, unlike the human population, the timing of infection can be controlled, and findings can be quantified and directly correlated with disease under controlled conditions.
Partitioning the relative contributions of genotype, ethanol exposure and the interaction between genotype and environment is more readily accomplished in animal models in which both the genetic background and environment can be controlled and alcohol-related phenotypes quantified accurately.
This constant is dictated by the reaction volume, surface area and temperature [51], all of which were rigorously controlled and quantified.
It is the largest study to date investigating the effects of exercise training on insulin sensitivity in offspring of patients with type 2 diabetes and thus well powered to detect changes in the main outcome measures; moreover, the exercise intervention, moreover, was tightly controlled and quantified.
The surveys and in-depth interviews that are commonly used to determine the attitudes and behaviours of patients, clinicians, or the general public regarding bioethical issues are less valued and are ranked lower than the carefully controlled and quantified evidence that is derived from randomised controlled trials and other more objective methods.
By using such methods, the construction and morphology of the films can be controlled tightly and their interaction with NTRs quantified.
To explore the role of zinc (Zn) in cellular physiology it is important to be able to control and quantify the level of Zn contamination in experimental solutions.
The utility and detectability of improvements along these lines is contingent on controlling and quantifying both sampling and mapping error.
