Photochemistry and the mechanism of chemical reactions /

Includes bibliographical references.

The measurement of high temperatures,

"Mr. Burgess has rewritten anew the whole book, so that it is no longer a translation, but an original work."

Beknopt Nederlandsch-Sasaksch woordenboek.

Mode of access: Internet.

Bonaparte and the consulate,

"I have ... ventured to alter the arrangement of the chapters, which in the original seem to be thrown together quite irrespective of chronology."--Editor's introd.

An atomic locomotive;

Mode of access: Internet.

Index of obituaries in Massachusetts centinel and Columbian centinel, 1784-1840.

Typescript (carbon copy)

Catalogue of the library of the Boston Athenaeum, 1807-1871.

Edited by C.A. Cutter.

Mitteilungen der Geographischen gesellschaft (fu r Thu ringen) zu Jena.

List of members in v. 1, 4, 6, 11, 16, 25.

Floods of March 1982, Indiana, Michigan, and Ohio /

Bibliography: p. 35.

List of books forming the reference library in the reading room of the British museum.

Preface to 1st ed. (historical sketch) by J. Winter Jones, reprinted in v. 1, p. [viii]-xxvii.

Cataloging as an asset; an address to the New York State Library School, May 1, 1915.

On cover: From G. K. Hall & Co. with all good wishes at Christmas MCMLXVIII.

Index to grass species,

Mode of access: Internet.

Chlorination for degrading saxitoxins (paralytic shellfish poisons) in water

Chlorination was investigated as a treatment option for degrading and thus removing saxitoxins (paralytic shellfish poisons, PSPs) produced by cyanobacteria (blue-green algae) from water. It was found to be effective with the order of ease of degradation of the saxitoxins being GTX5 (B1) similar to dcSTX > STX > GTX3 similar to C2 > C1 > GTX2. However the effectiveness of chlorine was pH dependent. Degradation as a function of pH was not linear with the degree of degradation increasing rapidly at around pH 7.5. At pH 9 > 90% removal was possible provided a residual of 0.5 mg l(-1) free chlorine was present after 30 min contact time. The more effective degradation at higher pH was unexpected as chlorine is known to be a weaker oxidant under these conditions. The more effective degradation, then, must be due to the toxins, which are ionisable molecules, being present in a form at higher pH which is more susceptible to oxidation. The feasibility of using chlorine to remove saxitoxins during water treatment will therefore depend strongly on the pH of the water being chlorinated. Degradation may be improved by pH adjustment but may not be a practical solution. Although saxitoxins were degraded in that the parent compounds were not detected by chemical analysis, there is no indication as to the nature of the degradation products. However, acute toxicity as determined by the mouse bioassay was eliminated.

"Only a GP?'': is the solution to the general practice crisis intellectual?

General practice is suffering a crisis of status, as shown by financial, power and intellectual markers. This is serious as a strong general-practice workforce is important to deliver cost-effective, high-quality healthcare. We argue that strengthening the intellectual aspects of general practice (particularly critical thinking) is essential. Most strategies to achieve this centre on research, with many initiatives in Australia and overseas to enhance research by general practitioners; there is still insufficient clinical research in general practice. Other ways to improve critical thinking include promoting use of evidence-based medicine, provided it is not implemented only via cook-book guidelines. Other innovations are desperately needed.