The notions we study in this paper, those of existentially-atomic structure and effectively existentially-atomic structure, are not really new. The objective of this paper is to single them out, survey their properties from a computability-theoretic viewpoint, and prove a few new results about them. These structures are the simplest ones around, and for that reason alone, it is worth analyzing ...

The literature on birth control is eI^!)1u?USon this added to almost daily. The sale for books subject must be equally large or the law of supply and demand would operate and stop the flow. Mr. Scott's book is like many others, but on the whole it is a very satisfactory book. It lives up to its title, and its sub-title, 'How to avoid pregnancy'. Little time is spent in discussing the ethics of ...

by Kenning Arlitsch and John Herbert Kenning Arlitsch and John Herbert are both at the J. Willard Marriott Library, University of Utah. Mr. Arlitsch (kenning.arlitsch© library.utah.edu 295 S. 1500 East, Room 463, Salt Lake City, UT84112) is Head of Information Technology, and Mr. Herbert (John. [email protected] 295 S. 1500 East, Room 418, Salt Lake City, UT 84112) is Program Director Ut...

The courses of many epidemic diseases reflect the social and economic changes in any nation. They are so often closely influenced by such problems as migrant labour, improving communications, movement of population, and rapid urbanisation. Ghana is no exception; the pattern of disease in that country is closely bound up with the history of its development-as this book well shows. Dr. Scott's ow...

Incumbents significantly outperform challengers in American elections, but the normative implications of this phenomenon are ambiguous. Do incompetent officials exploit the political system to keep themselves in power, or do open elections effectively select for good leaders? To address this question, I define and estimate three components of incumbent success in elections— (1) party match, (2)...

1 epoch 2 Abbreviated Title: Context-dependent unloading responses 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Authors and Addresses: 17 Joseph Y. Nashed, Isaac Kurtzer and Stephen H. Scott 18 Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada 19 Department of Biomedical Sciences, NYIT – College of Osteopathic Medicine, Old 20 Westbury, New York, USA 21 Department of Anatomy ...

The 4% rule is the advice most often given to retirees for managing spending and investing. This rule and its variants finance a constant, non-volatile spending plan using a risky, volatile investment strategy. As a result, retirees accumulate unspent surpluses when markets outperform and face spending shortfalls when markets underperform. The previous work on this subject has focused on the pr...

Recent years have seen significant advances in the study of symmetric informationally complete (SIC) quantum measurements, also known as maximal sets of complex equiangular lines. Previously, the published record contained solutions up to dimension 67, and was with high confidence complete up through dimension 50. Computer calculations have now furnished solutions in all dimensions up to 151, a...

IT is a privilege to have been asked to give the sixty-ninth Mary Scott Newbold Lecture. The list of my predecessors is indeed distinguished. The topic, cardiac failure, was chosen because my colleagues and I have been concerned with this problem for almost a quarter of a century. In this lecture I propose to outline my present concepts based on the evolution of thinking which has resulted from...

A new characterization of nondeterministic concurrent strategies exhibits strategies as certain discrete fibrations—or equivalently presheaves—over configurations of the game. This leads to a lax functor from the bicategory of strategies to the bicategory of profunctors. The lax functor expresses how composition of strategies is obtained from that of profunctors by restricting to ‘reachable’ el...