Sentence examples for it difficult to observe from inspiring English sources

Even when samples can be obtained at different time points [ 1- 3], the tumor genome has usually been remodeled by chemotherapy, making it difficult to observe its natural course of evolution.

Is it difficult to observe Ramadan without his family nearby?

Most radar satellites are in orbits with monthly repeat cycles, which limits the number of times a region may be visited by an orbiting SAR and also makes it difficult to observe rapidly occurring deformations.

An open question is whether the BDD and control groups indeed implicitly evaluate attractiveness comparably, or whether methodological factors (e.g., the IAT design requirement of a relative comparison category for attractiveness) made it difficult to observe group differences.

However, photobleaching and photoblinking (hereafter referred to as photobleaching/photoblinking) of the probe molecules strongly hamper SMT studies of living cells, making it difficult to observe in vivo molecular events and to evaluate their lifetimes (e.g., off rates).

Time scales involved in geomorphic change can make it difficult to observe a large number of states and transitions, which may constrain what types of STM structure can be identified, as the number of observed states and transitions required to develop particular graph structures varies widely.

The Little Tinamou is widely distributed and is fairly common across its range, but it is difficult to observe.

Chain said the model provided strong evidence of cell-to-cell spread, which he said some HIV scientists remained sceptical about, as it is difficult to observe in human beingsbecause it occurs in tissue.

It could be argued that the fraction of normal cells is so low that it is difficult to observe any difference between the pairs of samples.

It is difficult to observe objects that are close to the Sun, but we have enough observations to say that there cannot be any other bodies in the inner solar system that are large enough to be considered planets.

While it is difficult to observe day-to-day changes in ourselves and in those closest to us, it is possible.