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    Characteristics of Mesenchymal Stem Cells Derived From the Apical Papilla of a Supernumerary Tooth Compared to Stem Cells Derived From the Dental Pulp

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    this paper is that of a retail business activity. A typical component in that example is a (virtual) shop that we describe as four applications around one database (take a glance at Figure 2, which we will describe fully later). Because the basic component that we propose to build from has the characteristics of being active (it comprises one or more applications), being persistent (it comprises one or more databases) and being large, we shall use the term capability-server for it, to draw attention to these significant aspects. If we just used the term component or application, we might convey the impression that that we recommend the technique for use at a more detailed level than we shall address here. The term capability-server is intended to capture the notion that capabilities are being provided, where a capability is access to information or to processing. Another significant assumption we shall make is that capability-servers communicate with each other by sending (probably very rich) messages asynchronously. That is to say, the messages may take some time to arrive. The sending capability-server will not wait for a reply but will be able to service a reply, if any, asynchronously at some later time. We conjecture that capability-servers, communicating asynchronously in this way can be used to map either the business processes to be described, or the highest level of system architecture that we (as system architects) believe will implement the business processes. These models may or may not be the same. We introduce a type of model, which we may refer to either as a services diagram or
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