When the number of SSs with nrtPS connections increases, the scheduler adjusts the unicast polling interval and distributes the existent resources among nrtPS connections.
Storage refers to the iTools repository function which allows entering new and updating existent resources and resource-descriptions (resource meta-data).
Another direct application of the iTools infrastructure is providing the investigator with the ability to construct meta-algorithms and meta-tools for computational biology by finding and linking existent resources.
As such it is imperative that existent resources (human, financial, infrastructure and equipment) are used effectively, targeting the major avoidable causes of blindness in order that the goals of VISION2020 are achieved in Nigeria.
The productivity of the existent resources, the appropriate skill mix (i.e. allocation throughout different occupations), the geographical distribution of the health workers according to the population needs, and the quality of the services delivered by them are just a few examples of other issues to consider, generally neglected by the decision makers.
In order to authenticate non-existent resources, DNSSEC introduces NSEC-records [19] containing a linked-list of existing records ordered by name, hence actively denoting non-existing namespaces.
However useful to our research, publishing the complete list of available resources does not relate to the occasional request of non-existent resources and may even raise concerns on privacy.
Where DNSSEC so far authenticates existing resources, it is difficult to authenticate non-existing resources as non-existent records (1) have no corresponding signature, and (2) if for every NXDOMAIN response a signature would be computed online, key pairs would be more vulnerable to attacks.
Table 1 presents a comparison between a number of existent data resources, focusing on features like the existence of data analysis services and data statistics.
The existent iTools resources incorporate tools, databases and services for modeling, analysis and visualization of biological images, genotypic sequences and clinical datasets.
