We summarize the essential ingredients, which enabled us to derive the path-integral for a system of harmonically interacting spin-polarized identical particles in a parabolic confining potential, including both the statistics (Bose–Einstein or Fermi–Dirac) and the harmonic interaction between the particles. This quadratic model, giving rise to repetitive Gaussian integrals, allows to derive an analytical expression for the generating function of the partition function. The calculation of this generating function circumvents the constraints on the summation over the cycles of the permutation (...) group. Moreover, it allows one to calculate the canonical partition function recursively for the system with harmonic two-body interactions. Also, static one-point and two-point correlation functions can be obtained using the same technique, which make the model a powerful trial system for further variational treatments of realistic interactions. (shrink)

In the anthropology of Gregory of Elvira there converge different lines of thought. On the one hand he is very dependent on Origen, on the other there is to be found in him the mental framework of Irenaeus and he quotes word for word long passages from Tertullian. The article attempts to determine to what extent, starting from those influences he encountered, Gregory has developed a personal vision of the relationship between Adam and Christ along the double line of the (...) Pauline parallel : sin and grace, initial creation and eschatological fulfilment. If some characteristic passages stress much this second aspect, the majority of the texts analyzed concentrate primarily on the theme of redemption. The reason for the prefiguration of Christ in the creation of Adam, so important for Irenaeus and Tertullian, does not have in Gregory the prominent place which one might have expected to find. (shrink)

The relation between Jesus and the Spirit appears in diverse occasions and in different contexts in Gregory. Jesus has sanctified the waters in his baptism, from his body springs the Spirit whom he has received in the Jordan, he is the «anointed», the «Christ» par excellence who gives the Holy Spirit to people at Pentecost. The theology of the baptism of the Lord calls for special attention; it takes place at an interesting moment of transition. On the one hand, the (...) effusion of the Spirit on the humanity of Jesus does not create any problem for Gregory who distinguishes it clearly from the incarnation of the Son. On the other hand, the initiative of the Father in this unction is not paid special attention to, nor does it seem that it has a special significance for Jesus himself and the beginning of his mission in the world. However, much stress is given to the ecclesiological dimension of the descent of the Spirit in the baptism of Christ. On him comes the Spirit in fullness, as he will also abide in fullness in the whole Church which is his Body. Each of the Christians receives only a partial gift which must contribute to the perfection of the whole. (shrink)

Presents a unique view of the current state of development of bioethics in Latin America.

Joachim Schulte’s introduction provides a distinctive and masterful account of the full range of Wittgenstein’s thought. It is concise but not compressed, substantive but not overloaded with developmental or technical detail, informed by the latest scholarship but not pedantic. Beginners will find it accessible and seasoned students of Wittgenstein will appreciate it for the illuminating overview it provides.

The autobiography of a medium and investigator of extra-sensory phenomena.--L. F.

Polyclonal antibodies raised against the human erythrocyte nucleoside transporter were used to investigate the distribution of the nucleoside transporters in the placenta. Immunoblots of brush-border membranes isolated from the human syncytiotrophoblast revealed a cross-reactive species that co-migrated with the erythrocyte nucleoside transporter as a broad band of apparent M(r) 55,000. In contrast, no labelling was detected in basal membranes containing a similar number of equilibrative nucleoside transporters as assessed by nitrobenzylthioinosine (NBMPR)-binding. The absence of cross-reactive epitopes in basal membranes and (...) their presence in brush-border membranes was confirmed by confocal immunofluorescence microscopy. The results suggest that at least two isoforms of the NBMPR-sensitive nucleoside transporter are present in the human placenta. The lumenal surfaces of fetal capillaries, small placental vessels and umbilical vein ware also strongly labelled by the antibody, a finding that suggests that the high fetal-placental adenosine uptake previously reported is due to endothelial transporters. (shrink)

R. J. O'Connell’s latest book has all the sterling literary qualities of its predecessors, St. Augustine’s Early Theory of Man and St. Augustine’s Confessions: The Odyssey of the Soul. The task in the present case was fraught with new and graver perils; for, although considerations on art abound in Augustine, the subject never receives the full-blown treatment to which modern aesthetic theory has accustomed us. The one possible exception to this rule is the De musica, but even it deals with (...) music as a science rather than as an art and does little to alter the perspective established in the other dialogues. The bulk of the essay traces the evolution of Augustine’s theory of art through the early dialogues, the Confessions, and, in less detailed fashion, the works of his mature period. (shrink)

Some philosophers—call them pessimists–think we have reason to avoid deferring to testimony to settle our questions in domains where deep understanding is important. Extant defences of pessimism focus on whether deferring to testimony is ever sufficient for acquiring understanding. But I argue that these defences/articulations of pessimism are unsatisfactory. Even if deference to testimony were always insufficient for acquiring understanding—which seems doubtful—this would not explain why we have reason to avoid deferring in certain domains. Instead, I claim we should think (...) about how and when testimony can disincentivize and discourage agents’ coming to understand. I argue that deferring to testimony to settle a question often results in one having less reason to seek broader understanding and thereby sets one up to (continue to) lack understanding. The incentive pessimist appeals to this phenomenon to explain and defend the basic pessimist thought. (shrink)