Verification of McCabe's Delta L Law for Growth of Lysozyme Crystals by Hanging Drop Method

Lysozyme is a naturally occurring enzyme in egg white and has high commercial importance due to its antimicrobial properties. The main objective of this work was to study the growth rate of lysozyme crystals isolated from egg for the first 72 hours and verify the results with McCabe’s constant crystal growth theory. Hanging drop crystallization method was used to form high purity lysozyme crystals from the embryonic stage. To this end, this work differs from an earlier work of Forsythe et al., who used seed crystals in the size range of 10 µm - 40 µm for face growth measurements at different pH values. The maximum crystal size recorded in the present work was 392.86 µm, which is within the typical size range of 50 µm - 500 µm for which constant crystal growth is expected to hold according to McCabe’s ?L law. Electron micrographs (SEM) revealed the structure and dimensions of the crystals while SDS-Page was used to measure the purity of the crystals. The SEM results showed that that lysozyme growth rate was linear and agreed with McCabe’s constant growth theory, producing a growth rate of 1.77 x 10-3 µm .s-1

'Frank Pig Says Hello' by Pat McCabe

This theatre performance, produced in association with An Grianan Theatre, Letterkenny, contributes to two strands of research: theatre and mental health and Irish Physical Theatre in the 1990s.

Barry Lieberman & Friends, Maria Larionoff and Robin McCabe, May 6, 2012

Concert program for Barry Lieberman & Friends present Guest Artists, May 6, 2012

Kevin McCabe Collection, 1966-1979, 1981, 1991-1996,

Kevin McCabe received his PhD in Roman Studies from McMaster University. He has taught at The University of Regina, Nipissing University and Brock University. He was the editor of Gracefully Speaking: newsletter of the Grace Mennonite Church and The Poetry of Old Niagara. He is also the co- editor of The Poetry of Lucy Maud Montgomery and The Lucy Maud Montgomery Album.

Review and extension of the McCabe-Thiele method covering multiple feeds, products and heat transfer stages

The McCabe-Thiele method is a classical approximate graphical method for the conceptual design of binary distillation columns which is still widely used, mainly for didactical purposes, though it is also valuable for quick preliminary calculations. Nevertheless, no complete description of the method has been found and situations such as different thermal feed conditions, multiple feeds, possibilities to extract by-products or to add or remove heat, are not always considered. In the present work we provide a systematic analysis of such situations by developing the generalized equations for: a) the operating lines (OL) of each sector, and b) the changeover line that provides the connection between two consecutive trays of the corresponding sectors separated by a lateral stream of feed, product, or a heat removal or addition.

Barry Lieberman & Friends present Maria Larionoff, violin and Robin McCabe, piano April 11, 2010

Concert Program