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Since tidal pumping is increasing as the system is silting , the Ord River estuary appears to be geomorphologically unstable and to have been destabilised by human activities . However , in a new project , Van Hook and Glick are finding that extended family living arrangements among newly arrived immigrants tend to be highly unstable and thus may not be as valuable as often assumed . However , much of the vegetable-tanned leather that was produced during the 19th century is particularly unstable and prone to the development of Red rot . Highly unstable and liquid compounds were also investigated at low temperature , while his multi-temperature studies aimed to understand molecular dynamics in crystals . Many of the guests are unsophisticated or even unstable and have no concept of the humiliation and confrontation they are in for. Jones said that the plaintiffs were overreacting and compared the show to surprise birthday parties . From studies at a number of sites shown in Figure 1 , it is suggested that , because of the increased efficiency of the tidal pumping effect with decreasing water depth , these estuaries are geomorphologically unstable and may evolve much faster in the future than in the past as a result of human disturbances in the catchment , principally the damming of rivers and increasing erosion from poor land-use practices . In the first place , Amin does not interrogate the terms " Bengali " and " Muslim , " which are highly unstable and historically ( and often historiographically ) defined in opposition to each another . Third , as China and the world reach this crucial turning point , significant changes in the approach that international institutions take towards labor rights have helped facilitate a particularly unstable and politically risky form of economic development in China . This constant changing of the registry ( define ) in conjunction with these orphaned files can cause the system to become highly unstable and create many strange problems — none of which can be easily tracked . Jobs can be particularly unstable and inconsistent in fast-changing organizations . It 's highly unstable and one never knows when the next movie will get made or where it will come from .