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For the purposes of this POLICY , a " relationship by affinity " is defined as one that includes , but is not limited to , a relationship which an individual has with his or her spouse , father-in-law , mother-in-law , brother-in-law , sister-in-law , son-in-law , or daughter-in-law . Detection and elimination of pathogens is a consequence of millions of small cells - detectors - interacting through simple , very localised rules , to give rise to a truly efficient distributed system . The Custodial Staff would lock and unlock the phone from just after school through 10 minutes after the last after-school function . Smallpox is similar enough to cowpox to induce a secondary response , resulting in very rapid elimination of the smallpox . But it turned out to take longer to produce that data than they had expected , and we judged that it was more important to go forward with the competition than to wait on the final data . If a maturing T-cell binds to any of these proteins , it will be censored , or removed , in a process that is called clonal deletion ( see figure 8 ) .