SQL 2005 has snapshot-based isolation levels that prevent readers from blocking writers or writers from blocking readers without allowing dirty reads.

SQL 2005有一个 基于快照的隔离级别 ，它能在不允许“脏读”的情况下避免数据读取阻塞数据写入，或者数据写入阻塞数据读取。

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By default, the import utility is bound with the read stability (RS) isolation level (for a description of the DB2 isolation levels, see the sidebar).

默认情况下，import工具被绑定为具有读稳定性(RS)隔离级别(有关DB 2隔离级别的描述，请参阅侧栏)。

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That is because the export utility is bound with the cursor stability (CS) isolation level (for a description of the DB2 isolation levels, see the sidebar).

这是因为export工具被绑定为具有游标稳定性(CS)隔离级别(有关DB 2隔离级别的描述，请参阅侧栏)。

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Indeed, a couple of dating agencies have realised the isolation that certain levels of pet devotion can impose, and have set up special services for "animal people".

BBC: News | UK | Lonely pets seek love on the net

More work remains to address persistent causes of undercounting, such as poverty, mobility, language isolation, low levels of education, and general awareness of the survey, in addition to duplicate counts among the elderly and college students living away from home.

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Some of these effects have to do with demographic factors for instance, higher education levels correlate positively with use of social networking sites and negatively with measures of social isolation.

FORBES: Relax, All That Time You Spend on Facebook Is Good for You