Practical Context (practical + context)

Distribution by Scientific Domains


Selected Abstracts


Basic ingredients of free energy calculations: A review

JOURNAL OF COMPUTATIONAL CHEMISTRY, Issue 8 2010
Clara D. Christ
Abstract Methods to compute free energy differences between different states of a molecular system are reviewed with the aim of identifying their basic ingredients and their utility when applied in practice to biomolecular systems. A free energy calculation is comprised of three basic components: (i) a suitable model or Hamiltonian, (ii) a sampling protocol with which one can generate a representative ensemble of molecular configurations, and (iii) an estimator of the free energy difference itself. Alternative sampling protocols can be distinguished according to whether one or more states are to be sampled. In cases where only a single state is considered, six alternative techniques could be distinguished: (i) changing the dynamics, (ii) deforming the energy surface, (iii) extending the dimensionality, (iv) perturbing the forces, (v) reducing the number of degrees of freedom, and (vi) multi-copy approaches. In cases where multiple states are to be sampled, the three primary techniques are staging, importance sampling, and adiabatic decoupling. Estimators of the free energy can be classified as global methods that either count the number of times a given state is sampled or use energy differences. Or, they can be classified as local methods that either make use of the force or are based on transition probabilities. Finally, this overview of the available techniques and how they can be best used in a practical context is aimed at helping the reader choose the most appropriate combination of approaches for the biomolecular system, Hamiltonian and free energy difference of interest. © 2009 Wiley Periodicals, Inc. J Comput Chem, 2010 [source]


The Bridge to the ,Real World': Applied Science or a ,Schizophrenic Tour de Force'?*

JOURNAL OF MANAGEMENT STUDIES, Issue 6 2004
Alexander T. Nicolai
abstract This article concerns those publications which have received considerable attention in an academic as well as in a practical context. In these rare cases, it seems that it was possible to transfer scientific findings more or less directly into managerial implications. This widely shared view is contrasted with a socials systems perspective. From this point of view there cannot be a direct application of scientific knowledge. This also holds true for the classic examples of applied science. It is argued that even in these cases there is no evidence of linear knowledge transfer but rather ,Applied Science Fiction' (ASF). ASF comprises all techniques with which the scientific system reacts to external application pressure without having to relinquish its own self-referential logic. Different forms of ASF are introduced. These are retrofitting, reputation, symbolic labels and undisciplined eclecticism. The ASF-concept will be illustrated by Michael Porter's Competitive Strategy. Paradoxically, however, the conventional concept of application and ASF are a barrier for the sustainable relevance of management studies. [source]


As ,cold as charity'?:, poverty, equity and the charitable trust

LEGAL STUDIES, Issue 2 2000
Alison Dunn LLB
It has often been assumed that the notion of altruism indicative in the ordinary use of the term ,charity' penetrates the rationale for equity's enforcement of charitable trusts for the relief of the poor. This article questions whether in the area of poor relief equity acts out of a humanitarian regard for those whose relief is the purpose of the trust, or whether there is a more pragmatic rationale for action. Examination through case law of equity's reasoning is placed against a backdrop of socio-historical development, and of present day political concerns with resource allocation and professional accountability. This article concludes that whilst the potential for humanitarian relief in charitable trusts for the poor is clear, the operation of equity's jurisdiction in this area has a more prosaic disposition, placing poverty within the practical context of broader economic, social, commercial and industrial political policies. [source]


Paving the way for sustainability communication: evidence from a Swiss study

BUSINESS STRATEGY AND THE ENVIRONMENT, Issue 7 2007
Ylva Stiller
Abstract This paper presents and compares the outcomes of an annually repeated project, assessing the corporate reporting practice in the 250 largest Swiss companies, over a time frame of three years (2003,2005). Focusing on the quantitative and qualitative corporate sustainability disclosure, the study attempts a review of the Swiss corporate reporting practice by using a benchmark approach, as an alternative to content analysis, in order to supply best-practice examples for companies and open the door towards a more dialogical approach. Supported by the findings of Kolk, Gray, Unerman etc. as well as critique aired by Thomson and Bebbington and by Solomon and Darby, the study and its results are discussed and reflected upon in a conceptual and practical context. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment. [source]


Twenty years after Baddeley (1988): Is the study of autobiographical memory fully functional?

APPLIED COGNITIVE PSYCHOLOGY, Issue 8 2009
David B. Pillemer
Twenty years after Baddeley admonished memory researchers to examine the real-world relevance of their findings, research has informed a wide range of practical issues and it is increasingly guided by analyses of memory functions. Although broadly defined social, self and directive functional categories have provided an initial organizational framework for autobiographical memory research, the functional agenda will benefit from conceptual and methodological refinements and innovations. An especially valuable research strategy targets specific functions in carefully defined experimental and practical contexts. Promising research directions include comparing functions served by positive versus negative memories, tracking the early development of memory functions, and exploring individual and group differences. Although reconstructive memory processes contribute to inaccuracies in reproducing the past, functional analysis instead highlights the adaptive value of a flexible and constructive memory system. Copyright © 2009 John Wiley & Sons, Ltd. [source]


Wissens- und Wissenschaftstransfer , Einführende Bemerkungen,

BERICHTE ZUR WISSENSCHAFTSGESCHICHTE, Issue 3 2006
Mitchell G. Ash
Migration; Wissenschaftstransfer; Wissenschaftswandel; Wissenstransfer. Abstract Knowledge and science transfer , introductory remarks. The article presents introductory remarks on the historical study of knowledge and science transfer. Discussion focuses initially on the reasons for speaking of knowledge transfer and not only about science transfer, and the relations of this topic to current research in general history on cultural transfer. Multiple levels of knowledge / science transfer are then discussed, specifically: (1) transfer by means of migration or other movement of people across geographic boundaries; (2) scientific changes related to the transfer of objects (such as plant specimens or instruments) across continents or disciplines; (3) knowledge or science transfer in practical contexts. Addressed throughout is the problematic character of the concept of transfer itself. The author suggests that users of this concept often presuppose a static conception of scientific and cultural contents being more or less successfully transferred; more interesting, however, are the changes in science and culture conditioned or caused by the migration of individuals as well as the transfer of culture by other means. [source]