The aim of this paper is to give a direct approach to the study of the Sylow ^-subgroups Sn of the symmetric group of degree pn. [We assume throughout that p^2.] Many of the results are already known and are treated in a paper by Kaloujnine where he uses a particular representation by means of "reduced polynomials."1 It has seemed worth while to restate some of his results using the concept of ...

BACKGROUND Nitrate is a drinking water contaminant arising from agricultural sources, and it is a precursor in the endogenous formation of N-nitroso compounds (NOC), which are possible bladder carcinogens. OBJECTIVES We investigated the ingestion of nitrate and nitrite from drinking water and diet and bladder cancer risk in women. METHODS We identified incident bladder cancers among a cohor...

n a recent multinational survey, practitioners reported dressing removal to be the most painful aspect of the dressing procedure. 1 This is particularly problematic where a dressing has stuck to the wound or removal of the dressing has torn the skin. Although practitioners are aware of issues surrounding wound pain, they often fail to manage pain effectively at dressing changes 4 due to lack of...

ion Spaces". Artificial Intelligence 5, 2 (1974),8. Fink, P. K. and Biermann, A. W. "The Correction of 115-135.Ill-Formed Input Using History-Based Expectation WithApplications to Speech Understanding". Computational 22. Searle, J. R. Indirect Speech Acts. In Syntax and Linguistics 12 (1986), 13-36.Semantics, Volume 3: Speech Acts, New York: Academic Press, 1975.9. Gatward, ...

The occurrence and formation of N-nitrosamines in water supplies is of concern to the water industry, as N-nitrosamines have been reported to be carcinogenic, mutagenic, and/or teratogenic. The US Environmental Protection Agency’s (USEPA’s) Integrated Risk Information System indicates that N-nitrosodimethylamine (NDMA) is a probable human carcinogen (USEPA 1997). Other N-nitrosamines typically ...

Systems development in organizations is well recognized as a knowledge-intensive eft'ort. Since the relevant application domain knowledge is thinly spread across an organization, the acquisition, sharing, and integration of knowledge are significant activities during the development process. Advocates of computer-aided software engineering tools (CASE) claim that these tools offer a potentially...

-A simple gas chromatographic method was developed for the determination of cyanogen chloride and cyanogen bromide in drinking waters. Saturated headspace is injected directly onto a capillary column and the analytes are quantified by electron capture detection. Method detection limits are 0.04 and 0.2 #g/l for CNCI and CNBr, respectively. Effects of temperature and salt addition on analyte res...

vision of a just society based on personal values--values either acknowledged as subjective or asserted to be empirically derived. What is missing? Why can't effective programs be designed-by us or others? As an applied behavior analyst who teaches and supervises clinical graduate students, I am often confronted with a problem which seems to me to have the same basic form: Students wonder why a...

" Kuhnians depict the history of any scientific discipline as a succession of incommensurable paradigms. Empirical work done in one paradigm is of little relevance to another, and comparisons of paradigms on such familiar grounds as experimental adequacy are said to be inconclusive. Different paradigms do not agree on what constitutes knowledge or the meaning of truth. The recent work of other ...

During the past decade, a wide array of books have addressed the topic of new and emerging infectious diseases. In The Microbial Challenge: Human-Microbe Interactions, Robert I. Krasner attempts to put this topic into a format appropriate for classroom presentation. The book is sufficiently well done to stand alone in some situations, but supplemental material may be necessary in others. The Mi...