Sentence examples for influences is difficult from inspiring English sources

In most countries, the upward trend in incidence occurred across the age groups 35 49, 50 64 and 65 74 years [ 14], and as a result, attributing the time trend to period and cohort influences is difficult, although in studies that have examined unscreened women, or have adjusted for screening effects, cohort effects are evident in Denmark [ 21- 23], Norway [ 24] and Sweden [ 25].

6 7 These influences are difficult to isolate and independently assess.

Because these factors are inter-related, their influences are difficult to determine separately.

Genetic influences are difficult to elucidate, and identification of the involved genes is not easily achieved [ 3].

Some of these influences are difficult to retrieve from published maps or even from the data themselves.

One of the primary difficulties in using large samples to detect gene environment interactions is that most nongenetic influences are difficult to measure such that they often are dismissed as being beyond investigation in large samples (Wright et al. 2002).

Many contextual influences are difficult to control: the patient's characteristics and personality, the demographics and presentation (both typical and atypical) of the disease process itself, the knowledge, experience, expertise, personality and other characteristics of the physician, and the ambient conditions under which the decision will be made.

The complication is that although terminology is important, the manner and scale of influence is difficult to measure or understand.

While it is generally agreed that the power of large companies extends beyond the economic sphere, this influence is difficult to measure in any objective way.

Elizabeth A. T. Smith, the chief curator at the Museum of Contemporary Art in Chicago, writes that Fuller's influence on "creative practice" has been "more wide-ranging than previously thought," but goes on to acknowledge that this influence is "difficult to pinpoint or define with certainty".

Despite lasting until the early hours of the morning, everyone at the milonga is very sober, typically drinking just a single glass of wine to loosen up before sticking to water for the rest of the evening (dancing under the influence is difficult!).