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This essay compares two proposals (Cavazos, 1994; King, this issue) relating to whether and how CMC researches should cite electronic messages used as data. Although the proposals prescribe opposite solutions, both contain similiar assumptions about the nature of CMC (e.g., that it is homogeneous, that members of a "virtual community" have shared agendas) and about the nature of research (e.g., that it is content focused; that it is ideally consensual; that it should not affect the researched in any way). These assumptions are argued to reflect discipline-specifc biases that exclude other legitimate forms of CMC research. Two examples are discussed of research paradigms that are excluded by the guidelines: linguistic analysis in the positivist tradition, and critical analysis in the social realist tradition. The critical paradigm in particular raises a number of additional ethical considerations not addressed by the proposed guidelines. It is suggested that the existing ethical guidelines within each disc...

The Centers for Disease Control has tackled the threat of Acquired Immunodeficiency Syndrome (AIDS) from many difficult fronts, coordinating its efforts internally, with other agencies and with special interest groups. The agency has responded to public concern about the spread of the disease, recognizing the increasing role of contituencies in carrying out the mission of protecting the public health. CDC must continue to get the message to the public, to answer the fears and change raised by the disease, to combat hysteria, and to change behaviors that promote the transmission of AIDS.

For general practitioners, who handle more than 85 per cent of all pediatric care, Postgraduate Medicine here presents authoritative, up-to-date summaries by specialists in pediatric problems.