Weak Quantum Theory: Complementarity and Entanglement in Physics and Beyond

The concepts of complementarity and entanglement are considered with respect to their significance in and beyond physics. A formally generalized, weak version of quantum theory, more general than ordinary quantum theory of material systems, is outlined and tentatively applied to some examples.Comment: Revised version. Chapter 5.2 (old counting) omitted for separate publication, chapter 5.2 (new counting) reformulate

Development and fabrication of bismaleimide-graphite composites

The successful fabrication of high temperature resistant composites depends mainly on the processability of the resin binder matrix. For two new bismaleimide type resins the processing of graphite fabric prepregs to composites is described. One resin coded M 751 has to be processed from N-Methylpyrrolidone, the other resin evaluated is a so-called hot melt solvent-less system. Commercial T300/3000 Graphite fabrics were used as reinforcement. The M 751 - Resin is a press grade material and laminates are therefore moulded in high pressure conditions (400 N/sq cm). The solvent-less resin system H 795 is an autoclave grade material and can be cured at 40 N/sq cm. The cure cycles for both the press grade and the autoclave grade material (Fiberite W 143 fabric prepregs) are provided and the mechanical properties of laminates at low (23 C) and high (232 C) temperatures were measured. For comparison, the neat resin flexural properties are also presented. The water absorption for the neat resins and the graphite fabric laminates after a 1000 hour period was evaluated

Innovations in the Organization of Health Services: Inhibiting vs. Permissive Regulation

This Article concerns the effect of current legal rules upon the possibility of developing non-profit, consumer-sponsored, prepaid comprehensive health-service programs. Concomitantly considered are the effects of existing law upon physician sponsored plans, such as Blue Shield, and upon institutional practice under which non-profit hospitals or other institutions employ salaried physicians. The legal areas covered include: (1) Rules prohibiting the corporate practice of medicine; (2) Enabling acts permitting the operation of prepaid health-service plans; (3) Insurance codes and regulations protecting the public against fraudulent or financially unstable prepayment plans; and (4) Restraint-of-trade rules protecting prepayment plans against harassment and interference

Licensure of Pysicians

This Article examines the most significant features of state medical licensure laws: the scope of mandatory licensure, including the important question of authority for delegations of functions; the nature and role of state licensing agencies; qualifications for licensure candidates, including accreditation of medical schools; license registration and renewal, and reinstatement of lapsed licenses; recognition of licenses of other jurisdictions; and license suspension or revocation, and reinstatement of removed licenses

LOWERING VELOCITY OF THE CENTRE OF MASS DURING THE APPROACH AFFECTS JUMP HEIGHT IN VOLLEYBALL SPIKE JUMPS

It is assumed that a high impact height and therefore a high jump height is a relevant factor for success in volleyball spikes. The purpose of the study was to investigate whether the speed of the vertical movement of the centre of mass during the approach phase affects the jump height or not. Therefore, spikes from position IV were analysed at a tournament of the European League. Results showed that the faster the COM can be lowered and the faster the direction of the COM movement can be turned into an upward movement, the higher the jump height can be. This should be addressed within the training process

Classes of behavior of small-world networks

Small-world networks are the focus of recent interest because they appear to circumvent many of the limitations of either random networks or regular lattices as frameworks for the study of interaction networks of complex systems. Here, we report an empirical study of the statistical properties of a variety of diverse real-world networks. We present evidence of the occurrence of three classes of small-world networks: (a) scale-free networks, characterized by a vertex connectivity distribution that decays as a power law; (b) broad-scale networks, characterized by a connectivity distribution that has a power-law regime followed by a sharp cut-off; (c) single-scale networks, characterized by a connectivity distribution with a fast decaying tail. Moreover, we note for the classes of broad-scale and single-scale networks that there are constraints limiting the addition of new links. Our results suggest that the nature of such constraints may be the controlling factor for the emergence of different classes of networks