The aim of this book is to consider what reasonably follows from the hypothesis that the Tractatus Logico-Philosophicus can be interpreted from a mystical point of view. Atkinson intends to elucidate Wittgenstein’s thoughts on the mystical in his early writings as they pertain to a number of topics such as, God, the meaning of life, reality, the eternal and the solipsistic self.
: Catholic teaching has no moral difficulties with research on stem cells derived from adult stem cells or fetal cord blood. The ethical problem comes with embryonic stem cells since their genesis involves the destruction of a human embryo. However, there seems to be significant promise of health benefits from such research. Although Catholic teaching does not permit any destruction of human embryos, the question remains whether researchers in a Catholic institution, or any researchers opposed to destruction of human embryos, (...) could participate in research on cultured embryonic stem cells, or whether a Catholic institution could use any therapy that ultimately results from such research. This position paper examines how such research could be conducted legitimately in a Catholic institution by using an ethical analysis involving a narrative context, the nature of the moral act, and the principle of material cooperation, along with references to significant ethical assessments. It also offers tentative guidelines that could be used by a Catholic institution in implementing such research. (shrink)
Recently a growing number of biologists have begun to consider the causal role that processes of embryonic development may play in evolution. This constitutes a reunion of these phenomena which had been linked in the nineteenth century through Haeckel's biogenetic law. This reunion may result in a new subdiscipline of biology, if there is a set of unique concepts and methods which tie the various research approaches together. Such concepts as bauplan, canalization, and developmental constraint, may serve in such a (...) capacity. The methods employed must combine comparative and experimental analyses, with special attention paid to the range of variation in developmental events within each taxon. These concepts and methods are also applicable to the problem of how development evolved, thus the evolution of development may also be considered part of the reunion. The reunion is discussed in terms of the potential participation of various schools of thought found in the current literature. (shrink)
Some patients with schizophrenia are not told their diagnosis. The moral, clinical and practical issues involved in telling or not telling the patient are discussed. In some cases a relative is told the diagnosis but not the patient. The implications for the family and clinical outcome are outlined. A case history illustrating some of these issues is presented.
Bauschinger data for dispersion-strengthened single crystals are given, and correlated with data on the dislocation microstructure and the softening effect which is prominent at room temperature in copper. The data are analysed in terms of theories presented in earlier papers, and the following conclusions have been reached: (i) the Bauschinger effect, suitably defined, can be quantitatively accounted for by the mean internal stress level in the copper matrix; (ii) the internal stress behaves as a function of strain and temperature in (...) accord with the earlier theories, except that plastic relaxation requires a temperature-dependent initiation stress in alloys containing small particles; (iii) the softening process is the process of plastic relaxation, and is characterized by an activation energy of 0·9 eV and an activation volume of 1·5 b3; (iv) a new interpretation is given for the dislocation microstructures observed in the softened state; (v) the work-hardening in the unrelaxed state can be separated into two components, one related to energy storage and the other to heat production. Constitutive equations are given which are accurate to 10%. (shrink)