Comparison of four different algorithms for the calculation of radioimmunoassay standard curves

Peer Reviewe

The Epiphany in \u3cem\u3eA Portrait of The Artist \u3c/em\u3eas a Romantic Moment

Collected on parchment leaves, extended as stories in Dubliners, defined in Stephen Hero, and embedded in A Portrait Of The Artist, Joyce\u27s epiphanies have a long bibliographic and a confused critical history. Robert Scholes treats the epiphanies as a finite set of texts and argues that after Portrait Joyce outgrew them, using only one in Ulysses. Irene Hendry, on the other hand, argues in an early essay that Joyce had at least four epiphany techniques and that Joyce\u27s work is a tissue of epiphanies, great and small, from fleeting images to whole books, from briefest revelation in his lyrics to the epiphany that occupies one gigantic, enduring \u27moment\u27 in Finnegan’s Wake, running through 628 pages of text and then returning upon itself” (Hendry 461). While Scholes\u27 view is useful in tracing the development of specific passages, it tells us little about the epiphany as a literary motif. The second definition renders the epiphany and any comment on it vacuous, making any passage, from a line to a whole book, an epiphany. Amid such a welter of opinion it is difficult to construct a context in which to discuss the epiphany in an informative way. Shiv Kumar\u27s analysis of the epiphany as a descendant of Bergson\u27s L\u27intiution philosophique is helpful because he attempts to place the epiphany in a larger literary tradition. The epiphany, as it appears in the Portrait, belongs in a more obvious, but still useful literary context, that of the Romantic tradition

Introduction to the Symposium on Engaged Rhetoric of Science, Technology, Engineering and Medicine

This article argues for an engaged rhetoric of science, technology, engineering and medicine (RSTEM) that collaborates with science in the development and execution of research projects. It traces the emergence of an engaged RSTEM through recent disciplinary history and identifies Bruno Latour and Harry Collins and Robert Evans’ work as watershed moments that influence this commitment to collaboration. In reviewing the history of critique in the discipline, it argues that we have practical and political common ground with science that can supersede the necessity of critique. Finally, it addresses the difficult questions of why we as a discipline and as individual scholars would engage with science, what we have to contribute to scientific projects and where engaged scholars fit into interdisciplinary projects and into the credit cycle of the research university

Bedeutung der funktionellen Einheit für die Ökobilanzierung in der Landwirtschaft

Life cycle assessment (LCA) gains increasingly in technical and legal importance. Research groups getting involved with this topic have to adhere to the technical standard. The definition of appropriate reference values, indicated as functional units, is of special importance in this concern. LCA is often derived from the industrial sector, where it is one-dimensionally treated via output of companies. In the agricultural sector at least the problem of land use management has additionally to be considered. This paper shows the development of a convenient solution for this purpose in agricultural consultancy

Low energy behavior of astrophysical S factor in radiative captures to loosely bound final states

The low-energy behavior of the astrophysical S-factor for E1 direct radiative captures a(p,gamma)b leading to loosely bound final states (b=a+p) is investigated. We derive a first-order integral representation for S(E) and focus on the properties around zero energy. We show that it is the competition between various effects, namely the remnant Coulomb barrier, the initial and final centrifugal barriers and the binding energy, that defines the behavior of the S(E->0). Contrary to previous findings, we prove that S(E->0) is not determined by the pole corresponding to the bound state. The derivative S'(0) increases with the increase of the centrifugal barrier, while it decreases with the charge of the target. For l_i=l_f+1 the increase of the binding energy of the final nucleus increases the derivative S'(0) while for l_i=l_f-1 the opposite effect is found. We make use of our findings to explain the low energy behavior of the S-factors related to some notorious capture reactions: 7Be(p, gamma)8B, 14N(p,gamma)15O, 16O}(p,gamma)17F, 20Ne(p, gamma)21Na and 22Mg(p, gamma)23Al.Comment: 30 pages, TeX (or Latex, etc). Nucl. Phys. A (in press