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The goal of this study was to document if lakes in National Parks in Washington have exceeded critical levels of nitrogen (N) deposition, as observed in other Western States. We measured atmospheric N de-position, lake water quality, and sediment diatoms at our study lakes. Water chemistry showed that our study lakes were ultra-oligotrophic with ammonia and(More)
The selection and use of communication media has been the centre of attention for a great number of researchers in the area of organizational communication. The channel expansion theory combines elements of the main theories in this area; however, these investigations have a static cross-sectional design rather than a longitudinal analysis. With the(More)
One of the most important determinants of managerial effectiveness in achieving organizational objectives is the success in influencing subordinates, lateral peers and supervisors through influence tactics. However, little attention has been paid to the use of a communication media in the context of influence tactics. Our objective is to study the frequency(More)
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