A Novel Optical/digital Processing System for Pattern Recognition

This paper describes two processing algorithms that can be implemented optically: the Radon transform and angular correlation. These two algorithms can be combined in one optical processor to extract all the basic geometric and amplitude features from objects embedded in video imagery. We show that the internal amplitude structure of objects is recovered by the Radon transform, which is a well-known result, but, in addition, we show simulation results that calculate angular correlation, a simple but unique algorithm that extracts object boundaries from suitably threshold images from which length, width, area, aspect ratio, and orientation can be derived. In addition to circumventing scale and rotation distortions, these simulations indicate that the features derived from the angular correlation algorithm are relatively insensitive to tracking shifts and image noise. Some optical architecture concepts, including one based on micro-optical lenslet arrays, have been developed to implement these algorithms. Simulation test and evaluation using simple synthetic object data will be described, including results of a study that uses object boundaries (derivable from angular correlation) to classify simple objects using a neural network

Competition Leverage: How the Demand Side Affects Optimal Risk Adjustment

We study optimal risk adjustment in imperfectly competitive health insurance markets when high-risk consumers are less likely to switch insurer than low-risk consumers. First, we find that insurers still have an incentive to select even if risk adjustment perfectly corrects for cost differences among consumers. Consequently, the outcome is not efficient even if cost differences are fully compensated. To achieve first best, risk adjustment should overcompensate for serving high-risk agents to take into account the difference in mark- ups among the two types. Second, the difference in switching behavior creates a trade off between efficiency and consumer welfare. Reducing the difference in risk adjustment subsidies to high and low types increases consumer welfare by leveraging competition from the elastic low-risk market to the less elastic high-risk market. Finally, mandatory pooling can increase consumer surplus even further, at the cost of efficiency.health insurance;risk adjustment;imperfect competition;leverage

Selective Contracting and Foreclosure in Health Care Markets

We analyze exclusive contracts between health care providers and insurers in a model where some consumers choose to stay uninsured. In case of a monopoly insurer, exclusion of a provider changes the distribution of consumers who choose not to insure. Although the foreclosed care provider remains active in the market for the non-insured, we show that exclusion leads to anti-competitive effects on this non-insured market. As a consequence exclusion can raise industry profits, and then occurs in equilibrium. Under competitive insurance markets, the anticompetitive exclusive equilibrium survives. Uninsured consumers, however, are now not better off without exclusion. Competition among insurers raises prices in equilibria without exclusion, as a result of a horizontal analogue to the double marginalization effect. Instead, under competitive insurance markets exclusion is desirable as long as no provider is excluded by all insurers.health insurance;uninsured;selective contracting;exclusion;foreclosure;anti-competitive effects

Competition for Traders and Risk

Abstract: The financial crisis has been attributed partly to perverse incentives for traders at banks and has led policy makers to propose regulation of banks’ remuneration packages. We explain why poor incentives for traders cannot be fully resolved by only regulating the bank’s top executives, and why direct intervention in trader compensation is called for. We present a model with both trader moral hazard and adverse selection on trader abilities. We demonstrate that as competition on the labour market for traders intensifies, banks optimally offer top traders contracts inducing them to take more risk, even if banks fully internalize the costs of negative outcomes. In this way, banks can reduce the surplus they have to offer to lower ability traders. In addition, we find that increasing banks’ capital requirements does not unambiguously lead to reduced risk-taking by their top traders.optimal contracts;remuneration policy;imperfect competition;financial institutions;risk

Some system considerations in configuring a digital flight control - navigation system

A trade study was conducted with the objective of providing a technical guideline for selection of the most appropriate computer technology for the automatic flight control system of a civil subsonic jet transport. The trade study considers aspects of using either an analog, incremental type special purpose computer or a general purpose computer to perform critical autopilot computation functions. It also considers aspects of integration of noncritical autopilot and autothrottle modes into the computer performing the critical autoland functions, as compared to the federation of the noncritical modes into either a separate computer or with a R-Nav computer. The study is accomplished by establishing the relative advantages and/or risks associated with each of the computer configurations

Electromagnetic wave characteristics of a fully ionized gas Final report

Electromagnetic wave propagation in fully ionized ga

Application of the techniques for evaluating the acoustic sources of background noise in wind tunnel facilities

Techniques for evaluating acoustic sources of background noise in wind tunnel

Alien Registration- Boone, Arthur G. (Brownville, Piscataquis County)

https://digitalmaine.com/alien_docs/10172/thumbnail.jp

Identifying the Behavior, Attitudes, and Knowledge of Tobacco Use Among Students Enrolled in Orientation Courses in Six Community Colleges in the Tennessee Board of Regents System

The purpose of this study was to examine the behavior, attitudes, and knowledge regarding tobacco use of students enrolled in orientation courses in Tennessee community colleges. The six community colleges selected for the study were members of the Tennessee Board of Regents system that offered mandatory orientation courses. Data were collected by use of the College Tobacco Behavior, Attitude, and Knowledge Survey . A response rate of (72.5%) from 700 students was analyzed. Three research questions guided the study and 17 null hypotheses were formulated and tested at the.05 alpha level of significance. Data were analyzed by using t -tests, crosstabs, analysis of variance, Chi-square, and Pearson\u27s r correlation coefficients. Results of the study revealed that, of those students who ever smoked regularly, differences in age and ethnicity were found and no differences were found between males and females. There was no difference between males and females and when they first started smoking cigarettes regularly; however, differences were found among students of varying ethnicities. There was no relationship between students\u27 age and how many days they smoked; however, differences were found between males and females and ethnicities. There was no relationship regarding students\u27 age and no difference between males and females and how many days they used smokeless tobacco. There were differences between smokers\u27 and nonsmokers\u27 attitudes pertaining to a smokefree campus, a designated smoking area indoors, and that a tobacco awareness program would be beneficial to college students. There was no relationship between knowledge score and age, and no difference between males and females, and smokers and nonsmokers regarding their knowledge score. However, differences in knowledge scores were found among students of different ethnicities