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Air stripping involves the extraction of groundwater and the trickling of the water through a device that volatilizes contaminants by inducing air counter-current to the water . Placing cells in a hyperosmotic environment causes them to lose water through a process known as osmosis . These articles deal with topics of host-based intrusion detection through the analysis of audit trails , of command sequences and of system calls as well as network intrusion detection through the analysis of TCP packets and the detection of malicious executables . " " The women of Harvard athletics - - at all levels - - have provided both inspiration and instruction through this valuable program , " said Harvard director of community relations Kevin McCluskey . Southwestern markets family-oriented educational reference books and software through a sales force of over 3,000 students each summer . In order to eradicate the bloom , an intitiative was launched to temporarily enhance the salinity of the eastern basin of wetland through the addition of coarse rock salt .