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Using computer networking programs at two high schools as examples, this article describes what principals should know about networking. The many advantages of computer networking in schools will remain beneficial so long as the principal's objectives are met. Tips are provided for assessing the network. (eight references) (MLH)

The sexual behavior and reproductive performance of grizzly bears in Greater Yellowstone regions is evaluated from 1983-2002.

Describes the efforts of a North Carolina high school principal to adapt another school's computer network system to a reading comprehension improvement project in his school. Recounts administrative networking applications at Muskogee (Oklahoma) Public Schools and offers tips for choosing and evaluating computer networks. (MLH)

Doak and Cutler critiqued methods used by the Interagency Grizzly Bear Study Team (IGBST) to estimate grizzly bear population size and trend in the Greater Yellowstone Ecosystem. Here, we focus on the premise, implementation, and interpretation of simulations they used to support their arguments. They argued that population increases documented by IGBST based on females with cubs-of-the-year were an artifact of increased search effort. However, we demonstrate their simulations were neither reflective of the true observation process nor did their results provide statistical support for their conclusion. They further argued that survival and reproductive senescence should be incorporated into population projections, but we demonstrate their choice of extreme mortality risk beyond age 20 and incompatible baseline fecundity led to erroneous conclusions. The conclusions of Doak and Cutler are unsubstantiated when placed within the context of a thorough understanding of the data, study system, and previous research findings and publications. [ABSTRACT FROM AUTHOR]

In this paper principal component analysis (PCA) and singular value decomposition (SVD) are used to define the importance of the variables contributing to the relationship between the transient latent and sensible heat fluxes and to show their temporal and spatial variation. SVD is offered as an alternative means of isolating spatial and temporal structures in data with the advantage that it can depict simultaneous space-time variations that are aggregates of the results produced by PCA. Both methods of analysis produced two very important uncorrelated modes of variability in January and July, indicating that the transient heat fluxes are influenced by few controlling factors. We suggest that these modes of variability represent the influences of the meridional temperature gradient, atmospheric moisture, and activity within the source and sink regions of the transient heat fluxes. The physical relationships between the heat fluxes that appear to represented by the statistical modes of variability are discussed. [ABSTRACT FROM AUTHOR]

In a June 1985 article in the Wall Street Journal, trend guru Peter Drucker said that a thorough grasp of advanced technology is not the key element for educa tors; instead, "all it requires is the willingness to ask: Who requires what information, when and where ?" Once that question is answered, the most important data are available. [ABSTRACT FROM PUBLISHER]

A letter to the editor is presented as a response to the article "Wireless and the Spectrum" in the May 2005 issue.