2,228 research outputs found
Letter from Carl Hayden to Joseph J. Cotter
No full textLetter from Carl Hayden to Joseph J. Cotter regarding suggestions on the proposed national park bill
Letter from Joseph J. Cotter to Carl Hayden
No full textLetter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries
Letter from Joseph J. Cotter, U.S. National Park Service, to Representative Hayden
No full textLetter from Joseph J. Cotter to Carl Hayden detailing the approximate amount of patented land within the proposed borders of the national park. Thomas J. Croaff is mentioned in his belief that he owns half the land in the proposed area; however, Joseph J. Cotter disputes this claim. Ralph Cameron's mining interests in the park are also mentioned. Circa 1917
Nonlinear optics : and its applications in quantum electronics, semiconductor physics and telecommunications
No full textTunable stimulated electronic Raman scattering in alkali metal vapours
No full textStimulated electronic Raman scattering (SETS) is investigated hs a new simple method of generating tunable infrared radiation for spectroscopic applications. Experiments using SEES in potassium and caesium vapours demonstrate that wide ranges of infrared tuning are possible with pulsed dye lasers as the pumping source. A major part of the wavelength range 0.2-15 µm is covered using caesium, with output powers of up to 25kW. A series of experiments with the object of characterising and optimising the performance of the SEES source are described. The radiation generated in the region of 2.7µm in potassium is used to obtain absorption spectra with an infrared resolution of 0.4 cm-1 . The measured line widths of the generated radiation are in the range 0.3-1.6 cm-1, depending on the experimental conditions. and indicate the existence of one or more line broadening mechanisms. A number of possible mechanisms are described. Time-resolved observations reveal complex spectral and temporal behaviour. A theory for the small signal growth including the diffraction of the pump and Stokes radiation is developed, and shows that this diffraction has an important influence on infrared generation by SEES. The effects of competing processes are discussed, and a simple theory for the saturation behaviour which includes both pump depletion and saturation of the atomic levels is used to explain the main features of the variation of the output energy with tuning. The effects of the spin-orbit splitting of the intermediate 1nvels on the resonant enhancement and polarisation properties of SEES are investigated. Finally the SEES technique is assessed and compared with other types of tunable infrared source.</p
Book review: doing research in the business world by David E. Gray
No full textIn Doing Research in the Business World, David E. Gray offers an expansive textbook exploring diverse methodologies for undertaking research in business. Covering an impressive span of approaches and well-structured, this work will not only be an excellent resource for students and researchers but Richard Cotter also highly recommends it to practitioners in the business world. Doing Research in the ..
Stimulated multipole Raman scattering between opposite-parity states of atomic potassium
No full textStimulated multipole Raman scattering by free atoms has been observed for the first time. Tunable Stokes emissions close to the 3d-4p transitions in potassium vapour were readily detected when the incident laser frequency was tuned in the region of the 4s-3d electric quadrupole resonances
Before the 'After' in 'After World Religions' : Wilfred Cantwell Smith on the meaning and end of religion
No full textWriting the Foreword to a book with a title that begins with the word ‘After’ suggests that I should reflect on what comes ‘before’ the ‘after’ in the title. In their Introduction, however, Christopher Cotter and David Robertson have done just that by succinctly and clearly describing the historical background to and the development of the World Religions Paradigm (WRP). This leaves me with the problem as to what I can add in a Foreword to a book in which the Introduction sets out the compelling academic need to analyse, critique and eventually demolish the WRP (although Cotter and Robertson demonstrate that many academics tenaciously resist all efforts to challenge the paradigm and continue to produce books that are devoted to outlining the history and beliefs of the ‘big five’, or sometimes six, so-called world religions)
Extracellular serine protease activity among selected members of the Saprolegniales: Potential role in pathogenicity.
No full textSome of the world's most notorious fungal pathogens belong to the phylum Oomycota. Saprolegnia and Achlya, both water-borne members of this phylum, have been implicated as pathogens of amphibians, fish and rice. Like all fungi, these organisms require nutrient uptake by external enzymatic degradation. It has long been hypothesized that such external enzymes may also play a crucial role in pathogenicity by degrading host structure and defenses, while providing nutrients for the growing pathogen as it penetrates deeper into host tissues. Proteases, enzymes that specifically degrade proteins, may serve a crucial role in animal host penetration through fibrous structural proteins. In this study, gelatin SDS-PAGE analysis has demonstrated multiple bands of inducible extracellular proteolytic activity among Achlya ambisexualis, and two species of Saprolegnia, including a species recently isolated as the cause of "winter kill" in Mississippi fish farms (Bly et al. 1992). This inducible proteolytic activity among the Saprolegniales may provide answers to their mechanism of potential pathogenicity. (Abstract shortened by UMI.)Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2001 .K35. Source: Masters Abstracts International, Volume: 40-03, page: 0652. Adviser: David A. Cotter. Thesis (M.Sc.)--University of Windsor (Canada), 2001
The molecular chaperone (hsp70) and its potential roles during dormancy and germination of Dictyostelium discoideum spores; correlation with action tyrosine phosphorylation.
No full textThe heat shock response is an inherent process found in both eukaryotic and prokaryotic organisms. This response has never been investigated throughout dormancy and germination of Dictyostelium spores. Semi-quantitative analysis revealed hsp70, the main heat shock protein found to be expressed following heat shock at 30°C, to be extremely abundant in dormant spores of mutants aca-[PKA-C], RegA- and SG1. A stage specific dependence for hsp70 was observed throughout development of Ax3, particularly during late aggregation. An overall net decrease of greater than 50% occurred, however, from commencement into development to the end of fruiting. Germination studies revealed the heat shock response to have exhibited the greatest effect from germinating spores of the premature maturation mutant SG2. A 40% overall net increase in hsp70 was evident following heat-induced germination, in comparison to an overall decline of 30% observed from auto-induced germination. (Abstract shortened by UMI.) Source: Masters Abstracts International, Volume: 39-02, page: 0439. Adviser: D. A. Cotter. Thesis (M.Sc.)--University of Windsor (Canada), 2000
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