On other occasions, I've written proposals to tackle a very difficult observation, such as observing Jupiter's atmosphere using two Galilean satellites (these three bodies are moving with respect to each other) with a new type of adaptive optics system, and we've achieved success!
Which brings me to a difficult observation: as much as I support "AIM" and its objectives, in an era in which commercial imperatives tend to dominate all sectors of society, including the visual arts, should we be training emerging artists to work the system?
In all ECM devices, since the electron reservoirs are highly conductive, it is impossible to maintain a large difference in chemical potential, which is the reason for the difficult observation of half-integer quantization.
Gibbons and siamangs (family Hylobatidae) are known for their conspicuous and elaborate songs, while quieter, close range vocalisations have received almost no empirical attention, perhaps due to the difficult observation conditions in their natural forest habitats.
Whether counter aggression is really absent in this species or whether this finding is related to difficult observation conditions or to the inadequacy of the data set is unknown.
Although the small number of tetranucleotide tagged primers tested makes statistically supported comparisons difficult, our observations on the data indicate that overall the rate of sequence miss-assignment for these primers was lower than for the dinucleotide tags.
While due to the use of different data sources, study methods and reporting of the incidence for various age ranges a direct comparison is difficult, some observations can be made.
Thus, although quantifying actual membrane tension in our experiments is difficult, the observations of tense membranes and subsequent poration indicate that the osmotic perturbation is sufficient for most GUVs to surpass their maximum volume limit, developing appreciable membrane tension and pressure differences.
Titchener, a leading American introspective psychologist, wrote a 1600-page intrainingive training manual for students, arguing that introspective observation is at least as difficult as observation in the physical sciences (Titchener 1901 1905; see also Wundt 1874/1908; Müller 1904; for contemporary discussions of introspective training see Varela 1996; Nahmias 2002; Schwitzgebel 2011b).
The small carbon fraction in Ag/pyr (based on TGA measurements) and the density contrast between carbon and silver (i.e., carbon filaments are much lighter) made difficult the observation of the carbon phase in this sample.
