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  • Dianna Cody, Sue Edyvean, +10 authors Larry Rothenberg
  • 2008
The AAPM does not endorse any products, manufacturers, or suppliers. Nothing in this publication should be interpreted as implying such endorsement. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise)(More)
Speech sounds are produced by a moving column of air in a resonating chamber – just like a musical instrument. Different sounds are produced by varying the speed of the column of air, the size and shape of the resonating chamber, and by introducing various kinds of vibrations into the column. This is why different musical instruments sound different. This(More)
An implicit assumption in psychometrics and educational statistics is that the generative model for student scores on test questions is governed by the topics of those questions and each student's aptitude in those topics. That is, a function to generate the matrix of scores for m students on n questions should rely on each student's ability in a set of t(More)
BACKGROUND Animal-free recombinant proteins provide a safe and effective alternative to tissue or serum-derived products for both therapeutic and biomanufacturing applications. While recombinant insulin and albumin already exist to replace their human counterparts in cell culture media, until recently there has been no equivalent for serum transferrin. (More)
New accreditation requirements focus on education as a "continuous improvement process." The most important part of such a process is that information gets fed back into the system to improve the quality of the output. This requirement is often interpreted to imply a course-level feedback loop that iterates on offerings of courses or entire academic years.(More)
— Computer-based grading tools have existed for nearly as long as computing courses. The majority of these tools have focused on completely automatic grading of functional requirements, leaving no room for subjectivity, and generally eschewing human feedback in favor of total automation. We argue that these tools are of little practical use because they(More)