The analysis of interacting relativistic many-particle systems provides a theoretical basis for further work in many diverse fields of physics. After a discussion of the nonrelativisticN-particle systems we describe two approaches for obtaining the canonical equations of the corresponding relativistic forms. A further aspect of our approach is the consideration of the constants of the motion.

Cyclin-dependent kinase 5 has been implicated in Alzheimer's disease pathogenesis. Here, we demonstrate that overexpression of p25, an activator of cdk5, led to increased levels of BACE1 mRNA and protein in vitro and in vivo. A p25/cdk5 responsive region containing multiple sites for signal transducer and activator of transcription was identified in the BACE1 promoter. STAT3 interacts with the BACE1 promoter, and p25-overexpressing mice had elevated levels of pSTAT3 and BACE1, whereas cdk5-deficient mice had reduced levels. Furthermore, mice with a (...) targeted mutation in the STAT3 cdk5 responsive site had lower levels of BACE1. Increased BACE levels in p25 overexpressing mice correlated with enhanced amyloidogenic processing that could be reversed by a cdk5 inhibitor. These data demonstrate a pathway by which p25/cdk5 increases the amyloidogenic processing of APP through STAT3-mediated transcriptional control of BACE1 that could have implications for AD pathogenesis. (shrink)

Decisions related to animal welfare standards depend on farmer’s multiple goals and values and are constrained by a wide range of external and internal forces. The aim of this paper is twofold, i.e., to develop a theoretical framework for farmers’ AW decisions that incorporates farmers’ goals, use and non-use values and to present an approach to empirically implement the theoretical framework. The farmer as a head of the farm household makes choices regarding production to maximize the utility of the household. (...) The overall utility of the farmer is determined by his multiple objectives. For the analysis of multi-objective problems, the multiple criteria decision - making paradigm provides an appropriate theoretical framework. However, theories from the field of social-psychology are needed to facilitate the identification of all relevant aspects in the decision making. The practical use of the conceptual framework is demonstrated using a simple numerical application of a multi-objective programming model. Two workshops were devoted to examining the scientific consistency and the practical usefulness of the approach. Implementing this approach will increase knowledge of the main factors and barriers that determine farmers’ decisions with regard to AW standards. This knowledge is relevant during the development of new AW concepts that aims to supply products that comply with above-legal AW standards for middle-market segments. (shrink)

A unique description of the phenomena that arise from the interaction between quantum systems and their environment. Because of the novel character of the approach discussed, the book addresses scientists from all fields of physics and related disciplines as well as students of physics.

The prolific English poet John Lydgate has been known as the “monk of Bury” since the early fifteenth century. Both his popularity and perceptions of his literary merit have fluctuated wildly since his zenith as the famous laureate of Henry V, Henry VI and Duke Humphrey, but readers have been constant in their association of Lydgate with the Benedictine abbey from which the epithet derives. However, there has been remarkably little examination of the details of Lydgate's existence at Bury: the (...) critical emphasis has been on Lydgate's contact with Lancastrian society rather than on his quotidian life as a monk. “To trace in detail the connection between the Bury library and the characteristic configuration of Lydgate's thought and work, to see how his mind was formed and influenced by the books with which he was in such familiar contact” remains an unfulfilled desire. In particular, given the range of Lydgate's literary and intellectual allusions, it is surprising that there has been no full attempt to compare what we know of Bury's sizeable late medieval library, catalogued in the late fourteenth century by Henry Kirkstede, with Lydgate's poetic output. Likewise, few critics have attempted to trace connections between Lydgate's poetry and the intellectual and cultural atmosphere of a grand Benedictine abbey in the late medieval period. This article, a study of one manuscript from Bury that Lydgate certainly handled and that is typical of the type of book he would have encountered in great numbers in the monastic library, endeavours to reassert the importance to his poetry of the environment in which Lydgate spent most of his life. (shrink)

Metaphors for describing the introduction, impacts, and management of non-native species are numerous and often quite outspoken. Policy-makers have adopted increasingly disputed metaphorical terms from scientific discourse. We performed a critical analysis of the use of strong metaphors in reporting scientific findings to policy-makers. Our analysis shows that perceptions of harm, invasiveness or nativeness are dynamic and inevitably display multiple narratives in science, policy or management. Improving our awareness of multiple expert and stakeholder narratives that exist in the context of (...) non-native species management, as well as metaphorical alternatives, is critical. (shrink)