The phrase "definition of difficulties" is correct and usable in written English.
It can be used when discussing the meaning or explanation of various challenges or obstacles.
Example: "In her thesis, she provided a comprehensive definition of difficulties faced by students in remote learning environments."
Alternatives: "explanation of challenges" or "description of obstacles."
As a consequence we derive the property that must fulfil a measurable definition of difficulty.
We shall not try to give a general definition of difficulty covering a wide range of psychological aspects from emotional problems to intellectual and physical challenges.
The different findings of risk factors among the studies may be mainly due to different study design, enrolled population, definitions of difficulty and the indications of colonoscopy.
The combination of the limited power of our current airway assessment methods to predict difficult direct laryngoscopy, with the multiple definitions of difficulty makes the subject classification a potential source of controversy.
Once this comprehensive definition of psychosocial difficulties has been extracted from the literature, it is very important to incorporate the patient perspective in clinical practice and research.
These inconsistent findings may be due to the lack of a standardized definition of SGA, difficulty in assessing gestational age or not adjusting for confounding factors (Brocklehurst and French, 1998; Verhoeff et al., 2001).
There is currently no widely accepted definition of perceived difficulty, but it has been described as being experienced when a decision maker finds it difficult to choose a certain course of action, or when it is unclear which course of action best meets a decision makers' goals [ 2].
Previous scientific literature provides different definitions of psychosocial difficulties in depression but has some limitations: the methods either focus only on specific areas or consider the PSDs as a result of depression.
This appraisal of the literature reveals that lack of consensus on the definition of colic poses difficulties when assessing the outcome and validity of research.
Chief among the reasons why the theory of double sequences, under the Pringsheim definition of convergence, presents difficulties not encountered in the theory of simple sequences is the fact that a double sequence { x i j } may converge without x i j being a bounded function of i and j.
Within the literature reviewed here, and in the wider literature, the lack of formal attempts to standardize the definition of consultation creates difficulties when attempting to compare findings across studies.
