Also to perform a failure analysis to identify the causes of poorly identified negation (i.e. Missed Conceptual Representation, Inaccurate Conceptual Representation, Missed Negation, Inaccurate identification of Negation).
As for some data points from the Open PHACTS Discovery Platform a structural representation was missing, the "ChEMBLdb Connector Input" node was used in order to retrieve InChIKeys for all ChEMBL compound IDs in the "open" data set.
Introduced by the creator of the relational database model, E. F. Codd, SQL Null serves to fulfill the requirement that all true relational database management systems (RDBMS) support a representation of "missing information and inapplicable information".
In contrast to β2, generating models of DnaB6 using a combination of crystallographic and IM-MS data presents an additional challenge: the representation of missing residues from the largely incomplete high resolution structures.
These data sets were not combinable into a concatenated data set due to different taxonomic representation or missing data due to gene losses in various lineages (e.g., zebrafish lack HoxA10a, HoxA2a, and the HoxDb cluster).
First, we have identified a set of ontological constructs for which representations are missing in each of the standards.
Missing children in national news coverage: Racial and gender representations of missing children cases.
This, together with the fact that amputees report being able to move their phantom voluntarily [20], [21], [22], suggests that their body schema maintains a motor representation of the missing hand and that this representation can be activated by stimulating the motor cortex [23].
We interpret this as evidence that their motor cortex does not contain a representation of the missing limb, or that if such a representation exists it receives extremely strong inhibitory inputs and cannot be accessed either voluntarily or following intense external stimulation.
This phenomenon of maintained representation in the sensorimotor cortex, allowed us to reliably localise the representation of the missing hand (Makin et al., 2013).
