McGraw-Hill encyclopaedia of science and technology Vols. I?XIV, Aba-Zyt, 9040 pp.; Vol. XV, Index, 536 pp. McGraw-Hill Book Co. Inc., New York; McGraw-Hill Publishing Co. Ltd, London. 1960. E75 11s. 6d. net

Water vapour sorption by the pedal mucus trail of a land snail

“…The calculation of D requires a measurement of ρ of the bare surface followed by a second measurement after The raw data shown in Figure 1 was transformed to obtain the Re D and Im' D spectra presented in Figure 2. The transformed data show the presence of certain characteristic absorption bands [9,19] that are expected in IR spectra obtained from pedal mucus. The broad absorption band centered around 3300 cm -1 in the Re D spectrum signifies the presence of hydrogen-bonded water, which is expected since the mucus trail was analyzed shortly after casting and therefore is only partially dry.…”

“…Note that since this measurement was obtained in the ambient atmosphere, a small amount of CO 2 absorption is present in the spectra (as seen in the characteristic doublet around 2300 cm -1 ). [9,19] Several characteristic absorption bands are present in the Re D and Im'D spectra, including the CH 2 (1443 cm -1 ) and CH 3 (1410 cm -1 ) deformations of the carbon backbones and C-O stretching (1040 -1150 cm -1 ) of the sugar side chains. In general, the Im'D spectra offer better resolution in comparison to the Re D spectra.…”

“…Furthermore, it is only in the Im'D spectrum that the presence of C=O stretching at 1730 cm -1 is resolved. [9,19] For the characterization of the molecular structure of the mucus, the most important absorption bands in the spectra are the protein amide I and II bands at 1651 and 1543 cm -1 , respectively. In particular, high resolution de-convolution of the amide I band (the deal of information about secondary protein structure for single proteins, indicating the presence of α-helices, β-sheets, β-turns, and non-ordered structures [20].…”

Overview of an internationally integrated nanotechnology governance

“…2). 2 Substance means a chemical element and its compounds in the natural state or obtained by any manufacturing process, including any additive necessary to reserve its stability and any impurity deriving from the process used, but excluding any solvent which may be separated without affecting the stability of the substance or changing its composition.…”

“…Some of Australia's NT applications [2] include coatings, pharmaceuticals, health care, catalysts, advanced ceramics, cosmetics, sunscreens, solar cells, batteries, occupational health and worker safety, environmental safety, medical devices and food ( Fig. 1) [3,4].…”