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Economic evaluations in the Canadian Mental Health System. I: Theory behind economic evaluation.

Economic evaluation is becoming an increasingly important part of the evaluation of health and mental health services. Current models for conducting economic evaluation, including cost-effectiveness analysis, cost-benefit analysis, and cost-utility analysis, have great potential for improving the quality of decision-making and for making mental health programs more effective and efficient. This paper presents the basic economic theory underlying the various forms of economic evaluation and provides general guidelines for developing and conducting an economic analysis of a health program.

Canada↗

Efficient testing of segmented aspherical mirrors by use of reference plate and computer-generated holograms. I. Theory and system optimization.

Telescopes with large aspherical primary mirrors collect more light and are therefore sought after by astronomers. Instead of large mirrors as a single piece, they can be made by use of numerous smaller segments. Because the segments must fit together to create the effect of a single mirror, segmented optics present unique challenges to fabrication and testing that are absent for monolithic optics. We have developed a new method for measuring large quantities of segments accurately, quickly, and economically using an interferometric test plate and computer-generated hologram (CGH). In this test, the aspheric mirror segments are interferometrically measured by use of a test plate with a best-fit spherical surface. The aspherical departure is accommodated with a small CGH that is imaged onto the test plates. The radius of curvature is tightly controlled by maintaining the gap between the test plate and the segment. We present a summary of the test and give the basic design tradeoffs for using a single system to measure all of the segments of a large aspheric mirror.

Journal Article↗

Relationships between specialized cells, capillaries, and intermediary cytofibrillary elements. VIIIth note. A systematization attempt of the RHS in the light of Bertalanffy's theory of systems.

Phylogenetic data concerning the circulatory and the macrophagic systems in epineural invertebrates and in vertebrates are exposed. On this basis, the taking into consideration of a large general and complex system of defence is proposed as a work hypothesis. Within this system, two subsystems of the IInd order are described: the 1st represented by the epithelial organs, and the IInd by the immunogenic ones. In the first case, the epithelial cell populations (epithelial organs from the IInd step of author's classification, Vth note) play a dominant role in the local defence. The stroma and capillaries are dominating the defence process in the organs with covering epithelia (IIIrd step), in which the endothelia, the pericapillary membranes and the histiocytes are intervening; the antibody formation is missing. The immunogenic subsystem--the most evoluted form of the antiblastic and antinfection defence--comprises all the organs and formations of the old RHS. This IInd order subsystem is subdivided into two other subsystems of the IIIrd order: one comprises the primary lymphoid organs and the other, the secondary ones. Within the first began the differentiation; within the second, differentiation of cells participating in the cellular and humoral immunity is improved. Thus, each subsystem of the IIIrd order is subdivided into immunocompetent and non-immunocompetent cell lines (subsystems of the IVth order). Some reactions interpreted as expressions of cellular exchanges (open systems) providing the division and differentiation, especially of T and B lymphocytes, are described. The various terminology still used for the old RES and RHS is criticized and a new provisional terminology is proposed.

Animals↗

Interventions with alcoholics and their families.

Different types of alcoholism seem to exist, but all alcoholics progress through predictable stages. At any stage, interventions can be made by the nurse. The most effective, though unorthodox, interventions include the use of reversals (encouraging more of the same behavior) and the use of leverage (requiring treatment). These interventions focus upon the alcoholic. Family intervention, however, is a necessary condition for the complete recovery of the alcoholic and his family. The family system is a more powerful force than the addiction itself and has great potential for overcoming or sustaining the alcoholism. Using Bowen's family systems theory, the alcoholic family system was explained along with appropriate interventions for it. The major interventions included coaching the co-alcoholic to differentiate a self in the family system, to modify the habitual overfunctioner and pursuer roles, to bridge cutoffs, and to de-triangle oneself as the anxiety and tension rise in the family system. This article focuses on the alcoholic and the family system during the period of active alcoholism. Work on the family system is equally necessary and rewarding to family members once abstinence and sobriety are established. Families with alcoholism require several years of such work before the family system reaches an optimal level of functioning. Family systems work is a powerful, therapeutic adjunct to alcoholism treatment for the alcoholic and the participation of family members in Alcoholics Anonymous, Al-Anon, Ala-Teen, and Adult Children of Alcoholics is quite useful. Work with the alcoholic family system introduces a note of optimism for the future. As high levels of anxiety are reduced, opportunities are provided for differentiating a self in the family system, and triangling in of children becomes less necessary. The transmission of alcoholism and its effects are thereby lessened for future generations of children of alcoholics.

Alcoholism↗