This study was designed to examine whether anxious personality, i.e. trait anxiety, influences the autonomic nervous functions in humans without manipulation of experimental stressors.
The experimental instrumentation, including the loading device, and the procedures for the manipulation of experimental data are detailedly described; experimental results obtained on a steel specimen and a composite laminate are also reported.
In particular, NG of various architectures such as rods, plates, disks, cubes, spheres, stars, etc. can be synthesized by proper manipulation of experimental parameters in the presence of a macroscopic shape-regulating agents in the form of polymer [9, 10, 11, 12, 13, 16].
Gold NPs of various structural architectures (e.g., rods, plates, disks, cubes, spheres, and stars) can be synthesized by proper manipulation of experimental parameters in the presence of surface-capping agents in the form of surfactants[3, 17], polymers[3, 4, 5, 6, 7], and dendrimers[3, 6].
The manipulation of experimental animals should also be minimized.
Manipulation of experimental variables is difficult for middle and high school students.
Note that randomisation can also play an important role even in studies that do not involve any direct manipulation of experimental conditions or interventions.
Laboratory-based methods, on the other hand, allow for the manipulation of experimental conditions and measurement of dependent variables in a carefully controlled setting (i.e., without introducing extraneous variability).
Because of the complex interplay between the physiological roles of proteins involved in Alzheimer's disease, it is hard to differentiate disease-specific and hence therapeutically relevant effects from those which are related to the genetic manipulation of experimental models in the first place.
In other words, there's a 95% chance that the results were caused by the scientist's manipulation of experimental variables, rather than by chance.
