A misconception regarding the ultrastructural basis of myocardial failure has been observed in laboratory studies involving medical students and practicing physicians, in medical textbooks, and in clinical instruction of students. This misconception attributes heart failure to overextension of individual cardiac muscle fibres and their sarcomeres, resulting in a mechanically based decline in contractile force production. The basis of the misconception is a set of component misconceptions which interact in reciprocally supportive ways. The interlocking nature of the component misunderstandings strengthens the (...) overall misconception, making it difficult to undermine. A contributor to many aspects of the faulty account of heart failure is a tendency toward oversimplification of complex phenomena in learning, instruction, and scientific research. Implications for medical education are considered. (shrink)

A brief discussion of the origins of Marx's philosophy.--R. L. J.

The author sets out to show the "unique features of the idealistic dialectical method with its positive and negative elements, in order to show the various, often contradictory tendencies which are contained in them." Designed for "students, teachers and a broad circle of intellectuals." --R. L. J.

A social realist discussion of art.--R. L. J.

This article presents an overview ofregulations, guidelines and societal debates ineight member states of the EC about a)embryonic and fetal tissue transplantation(EFTT), and b) the use of human embryonic stemcells (hES cells) for research into celltherapy, including `therapeutic' cloning. Thereappears to be a broad acceptance of EFTT inthese countries. In most countries guidance hasbeen developed. There is a `strong' consensusabout some of the central conditions for `goodclinical practice' regarding EFTT.International differences concern, amongstothers, some of the informed consent issuesinvolved, and the (...) questions whether anintermediary organisation is necessary, whetherthe methods of abortion may be influenced bythe possible use of EFT, and whether EFTTshould only be used for the experimentaltreatment of rare disorders. The potential useof hES cells for research into cell therapy hasgiven a new impetus to the debate about (human)embryo research. The therapeutic prospects withregard to the retrieval and research use of hEScells appear to function as a catalyst for theintroduction of less restrictive regulationsconcerning research with spare embryos, atleast in some European countries. It remains tobe seen whether the prospect of treatingpatients suffering from serious disorders withtransplants produced by therapeutic cloningwill decrease the societal and moral resistanceto allowing the generation of embryos for`instrumental' use. (shrink)

This detailed monograph deals with such problems as "The Unity of the Finite and Infinite," "Logic and the Concept of Function," "Mathematical Logic," "Formal and Dialectical Logic." The author mentions the work of Reichenbach and Lukasiewicz.--R. L. J.