It is hard to see how images or pictures can do that without using any syntactic structure or discursive elements, to say nothing of judging, e.g., conditionals, disjunctive or negative propositions, quantifications, negative existentials, etc.[9] Moreover, there are difficulties with imagistic representations arising from demands on processing representations.
Boundary value problems with state-dependent impulses, where difficulties with an operator representation appear (cf. Remark 6.2), are substantially less developed.
One major result of Experiment 1 suggests that the difficulty with internal representations in working memory has to do with the strict sequential memory scanning resulting from the column-to-column encoding.
The scene construction and boundary extension results show that the patients had a significant difficulty with generating representations of scenes and extended scenes.
Due to difficulties of binary representation when dealing with continuous search space with large dimensions, the proposed approach has been implemented using real-coded genetic algorithm (RCGA) [18].
Both local community projects had experienced difficulties with an initial lack of representation of all healthcare professionals involved and with the implementation of the care pathway in primary care.
In a contrast with these principal difficulties, the representation of the messages (and corresponding update rules) forms an implementation-related problem.
In addition to difficulties with unknown players, the schematic representations do not put value signs on the interactions.
The conceptual difficulty with the greatest representation, associated with four concepts, is "Lack of development" (DV1), followed by "Gene expression evolves only when genes appear or disappear" (ED2), which is associated with three concepts.
One of the main difficulties with chemical registration systems is the representation of uncertainties of stereoconfigurations and mixtures of stereoisomers.
Incorporating public or local preferences in landscape planning is often discussed with respect to the difficulties associated with accurate representation, stimulating interest and overcoming barriers to participation.
