scholarly journals On Life-Tables-Their Construction and Practical Application

1899 ◽  
Vol 62 (3) ◽  
pp. 443 ◽  
Author(s):  
T. E. Hayward
Keyword(s):  
Life Tables ◽  
Practical Application

Chapter 11: Confronting Field Data: Aging and Sexing Problems

1973 ◽  
Vol 27 ◽  
pp. 58-64
Author(s):  
Kenneth M. Weiss
Keyword(s):  
Representative Sample ◽  
Field Data ◽  
Direct Evidence ◽  
Life Tables ◽  
Stable Processes ◽  
Demographic Analysis ◽  
Practical Application ◽  
Common Problems

This and the following chapters will deal with the practical application of our life tables to anthropological data. In order to fit field data to a model, one must be confident that the data are as accurate and reliable as possible. This is difficult with anthropological data, especially if one is working from the literature. In this chapter the methods and common problems associated with the aging and sexing of anthropological populations are discussed. This discussion may help the reader to recognize questionable aspects of his data and to correct them prior to fitting a model table.There is always the problem of the representativeness of the sample. If there is no direct evidence to suspect one’s sampling, the sample of skeletons or the census of a living population are usually assumed to be representative of stable processes. This is necessary to the application of our models. If a skeletal series is taken from a biased sample of burials, then of course it is not representative of the population from which it came. This is often true for juveniles (Schwidetzky 1965), and some means have been developed to make up for this deficiency. Where an unbiased, representative sample or census cannot be assumed, further demographic analysis is not likely to be productive.

Progress In The Practical Application Of Automated Image Analysis To Tem Negatives

1977 ◽  
Vol 35 ◽  
pp. 214-217
Author(s):  
F. A. Heckman ◽  
E. Redman ◽  
J.E. Connolly
Keyword(s):  
Image Analysis ◽  
Image Quality ◽  
Exposure Time ◽  
Image Contrast ◽  
Automated Image Analysis ◽  
Practical Application ◽  
Factors Affecting ◽  
High Image Quality ◽  
Qualitative Evidence ◽  
Comprehensive Study

In our initial publication on this subject1) we reported results demonstrating that contrast is the most important factor in producing the high image quality required for reliable image analysis. We also listed the factors which enhance contrast in order of the experimentally determined magnitude of their effect. The two most powerful factors affecting image contrast attainable with sheet film are beam intensity and KV. At that time we had only qualitative evidence for the ranking of enhancing factors. Later we carried out the densitometric measurements which led to the results outlined below.Meaningful evaluations of the cause-effect relationships among the considerable number of variables in preparing EM negatives depend on doing things in a systematic way, varying only one parameter at a time. Unless otherwise noted, we adhered to the following procedure evolved during our comprehensive study:Philips EM-300; 30μ objective aperature; magnification 7000- 12000X, exposure time 1 second, anti-contamination device operating.

Fifth Edition: the New Standard

2000 ◽  
Vol 5 (6) ◽  
pp. 1-7
Author(s):  
Christopher R. Brigham ◽  
James B. Talmage ◽  
Leon H. Ensalada
Keyword(s):  
Musculoskeletal System ◽  
Medical Information ◽  
Objective Assessment ◽  
Scientific Data ◽  
Practical Application ◽  
Fourth Edition ◽  
Appropriate Use ◽  
Medical Evaluation ◽  
Single Set

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, is available and includes numerous changes that will affect both evaluators who and systems that use the AMA Guides. The Fifth Edition is nearly twice the size of its predecessor (613 pages vs 339 pages) and contains three additional chapters (the musculoskeletal system now is split into three chapters and the cardiovascular system into two). Table 1 shows how chapters in the Fifth Edition were reorganized from the Fourth Edition. In addition, each of the chapters is presented in a consistent format, as shown in Table 2. This article and subsequent issues of The Guides Newsletter will examine these changes, and the present discussion focuses on major revisions, particularly those in the first two chapters. (See Table 3 for a summary of the revisions to the musculoskeletal and pain chapters.) Chapter 1, Philosophy, Purpose, and Appropriate Use of the AMA Guides, emphasizes objective assessment necessitating a medical evaluation. Most impairment percentages in the Fifth Edition are unchanged from the Fourth because the majority of ratings currently are accepted, there is limited scientific data to support changes, and ratings should not be changed arbitrarily. Chapter 2, Practical Application of the AMA Guides, describes how to use the AMA Guides for consistent and reliable acquisition, analysis, communication, and utilization of medical information through a single set of standards.

New algorithms and formulas for calculation the volume of a ball and its surface area for the development of students' creative thinking and practical application

2020 ◽  
pp. 32-41
Author(s):  
V. P. Zudin
Keyword(s):  
Surface Area ◽  
Creative Thinking ◽  
Economic Effect ◽  
Educational Institutions ◽  
Practical Application ◽  
Microsoft Word ◽  
Ball Surface ◽  
Visual Basic For Application ◽  
Application Programs ◽  
Development Of Students

The article presents new, more accurate algorithms and formulas for calculating the area of a circle, volume of a ball, surface area of a ball. To prove these algorithms and formulas and their practical application, programs have been developed in the Visual Basic for Application in Microsoft Word. These algorithms and formulas should be studied and applied in all educational institutions, as they are closer to the truth. From a more accurate calculation using these formulas, you can get an economic effect when calculating trajectories of movements in space, on the surface of the globe, in the construction and maintenance of products in the form of a circle or a ball. The study of this material in informatics lessons contributes to the development of students' creative thinking, increasing their motivation to study informatics and IT.

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