3,713 research outputs found
Yeast metabolism in fresh and frozen dough : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Food Technology at Massey University, Palmerston North, New Zealand
No full textAuthor also known as SM LovedayFresh bakery products have a very short shelf life, which limits the extent to which manufacturing can be centralised. Frozen doughs are relatively stable and can be manufactured in large volumes, distributed and baked on-demand at the point of sale or consumption. With appropriate formulation and processing a shelf life of several months can be achieved.Shelf life is limited by a decline in proofing rate after thawing, which is attributed to a) the dough losing its ability to retain gas and b) insufficient gas production, i.e. yeast activity. The loss of shelf life is accelerated by delays between mixing and freezing, which allow yeast cells the chance to ferment carbohydrates.This work examined the reasons for insufficient gas production after thawing frozen dough and the effect of pre-freezing fermentation on shelf life. Literature data on yeast metabolite dynamics in fermenting dough were incomplete. In particular there were few data on the accumulation of ethanol, a major fermentation end product which can be injurious to yeast.Doughs were prepared in a domestic breadmaker using compressed yeast from a local manufacturer and analysed for glucose, fructose, sucrose, maltose and ethanol. Gas production after thawing declined within 48 hours of frozen storage. This was accelerated by 30 or 90 minutes of fermentation at 30;C prior to freezing.Sucrose was rapidly hydrolysed and yeast consumed glucose in preference to fructose. Maltose was not consumed while other sugars remained. Ethanol, accumulated from consumption of glucose and fructose, was produced in approximately equal amounts to CO2, indicating that yeast cells metabolised reductively.Glucose uptake in fermenting dough followed simple hyperbolic kinetics and fructose uptake was competitively inhibited by glucose. Mathematical modelling indicated that diffusion of sugars and ethanol in dough occurred quickly enough to eliminate solute gradients brought about by yeast metabolism
Recall of random and distorted positions: Implications for the theory of expertise.
No full textThis paper explores the question, important to the theory of expert performance, of the nature and number of chunks that chess experts hold in memory. It examines how memory contents determine players' abilities to reconstruct (a) positions from games, (b) positions distorted in various ways and (c) and random positions. Comparison of a computer simulation with a human experiment supports the usual estimate that chess Masters store some 50,000 chunks in memory. The observed impairment of recall when positions are modified by mirror image reflection, implies that each chunk represents a specific pattern of pieces in a specific location. A good account of the results of the experiments is given by the template theory proposed by Gobet and Simon (in press) as an extension of Chase and Simon's (1973a) initial chunking proposal, and in agreement with other recent proposals for modification of the chunking theory (Richman, Staszewski & Simon, 1995) as applied to various recall tasks
The glomerular endothelium emerges as a key player in diabetic nephropathy
No full textThe effects of diabetes on glomerular structure and particularly that of the glomerular capillary wall have been extensively documented. By correlation with clinical measurements, Weil and colleagues provide important insights into the functional significance of glomerular structural changes in type 2 diabetes. Podocyte detachment correlates with albumin-to-creatinine ratio, but less strongly than does loss of endothelial fenestrations, which also correlates with reduced glomerular filtration rate. The role of the glomerular endothelium in diabetic nephropathy demands further scrutiny
The beginnings of behavioral economics : Katona, Simon, and Leibenstein's X-efficiency theory /
No full text1. Introduction2. Two beginnings3. The "Big 3.#x94; Simon, Katona, Leibenstein4. It didn't just happen overnight5. Leibenstein before X-efficiency theory6. X-efficiency. An intervening variable7. Empirical research on XE: c.1967-19908. XE among US financial institutions9. XE among financial firms in Asia10. XE among Asian non-financial institutions11. XE in Europe12. XE in Australia and New Zealand, Latin America, the Middle East, Africa, and the world13. ConclusionsDescription based on CIP data; resource not viewed.Elsevie
A born-digital author lexicon for 17th c. French: Sévigné’s case
No full textPreparing an edition of Madame de Sévigné’s correspondance encoded in TEI, we are currently facing two problems. First, while French medievalists have a long experience of establishing lexicons, specialists of 17th c. French literature traditionally do not provide such a study in their editions. Second, we are not aware of any born-digital author lexicon in TEI for (17th c.) French language. We therefore have to tackle two problems at the same time, and create both a scientific methodology, a..
A born-digital author lexicon for 17th c. French: Sévigné’s case
No full textPreparing an edition of Madame de Sévigné’s correspondance encoded in TEI, we are currently facing two problems. First, while French medievalists have a long experience of establishing lexicons, specialists of 17th c. French literature traditionally do not provide such a study in their editions. Second, we are not aware of any born-digital author lexicon in TEI for (17th c.) French language. We therefore have to tackle two problems at the same time, and create both a scientific methodology, a..
Forecasting banknotes
No full textA central bank’s liquidity forecast is important in ensuring that it supplies the banking system’s need for central bank money. Banknote (or currency in circulation) demand is the largest and for some central banks the most variable component of the liquidity forecast. Accurate forecasting of banknotes is essential in ensuring an accurate liquidity forecast and in turn effective monetary policy implementation. This Handbook discusses these issues and outlines a structural time series state space (STSSS) model which is now used by central banks including the Bank of England and ECB to forecast banknotes (currency in circulation).Forecasting banknotes
FONDUE-FR-PRINT-16 - Transcriptions of French 16th c. prints
No full text<p>HTR Groundtruth for French 16th c. prints, produced with <a href="https://github.com/mittagessen/kraken">Kraken</a> and <a href="https://gitlab.com/scripta/escriptorium">eScriptorium</a>.</p>
<p>Original data is available on <a href="https://github.com/FoNDUE-HTR/FONDUE-FR-PRINT-16">GitHub</a>.</p><pre>@misc{FONDUE_FR_PRINT_16,
author = {Gabay, Simon},
title = {FONDUE-FR-PRINT-16},
year = {2024},<br> publisher={Zenodo}<br> url={<a href="../doi/10.5281/zenodo.11526149">https://zenodo.org/doi/10.5281/zenodo.11526149</a>}<br> doi={<a href="../doi/10.5281/zenodo.11526149">10.5281/zenodo.11526149</a>}<br>}</pre>
Cenozoic drainage history of southern British Columbia
No full textThe author has placed restrictions on the PDF copy of this thesis. The PDF is not printable nor copyable. If you would like the SFU Library to attempt to contact the author to get permission to print a copy, please email your request to [email protected]
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