Power Counting and Modes in SCET

We present a formulation of soft-collinear effective theory (SCET) in the two-jet sector as a theory of decoupled sectors of QCD coupled to Wilson lines. The formulation is manifestly boost-invariant, does not require the introduction of ultrasoft modes at the hard matching scale Q, and has manifest power counting in inverse powers of Q. The spurious infrared divergences which arise in SCET when ultrasoft modes are not included in loops disappear when the overlap between the sectors is correctly subtracted, in a manner similar to the familiar zero-bin subtraction of SCET. We illustrate this approach by analyzing deep inelastic scattering in the endpoint region in SCET and comment on other applications.Comment: 31 pages, 7 figur

The Emotional Impact of Casino Servicescape

This study investigates the emotional impact of casino servicescape among Chinese table games gambling participants, and its impact on their approach/avoidance behavior. Data on casino servicescape, pleasure, arousal and dominance emotion (PAD) and approach/avoidance responses were obtained from 158 Chinese gamblers in Macau and analyzed using path analysis. The results of this study suggest that aesthetic factors within servicescape significantly influence the customers\u27 perception of the overall servicescape quality. While gambling facilitating factors within servicescape have significant impact on PAD emotions, they are not significant components of the perceived overall servicescape quality. Both overall servicescape quality and PAD emotions have significant positive influence on approach responses. The current study shows that besides inducing pleasure (satisfaction) emotion in customers, a successful strategy would include arousal and dominance emotions when designing and managing the casino servicescape. Casino operators could benefit from designing facilities that can make a customer feel satisfied, excited, and in control

Stigmergy in Web 2.0: a model for site dynamics

Building Web 2.0 sites does not necessarily ensure the success of the site. We aim to better understand what improves the success of a site by drawing insight from biologically inspired design patterns. Web 2.0 sites provide a mechanism for human interaction enabling powerful intercommunication between massive volumes of users. Early Web 2.0 site providers that were previously dominant are being succeeded by newer sites providing innovative social interaction mechanisms. Understanding what site traits contribute to this success drives research into Web sites mechanics using models to describe the associated social networking behaviour. Some of these models attempt to show how the volume of users provides a self-organising and self-contextualisation of content. One model describing coordinated environments is called stigmergy, a term originally describing coordinated insect behavior. This paper explores how exploiting stigmergy can provide a valuable mechanism for identifying and analysing online user behavior specifically when considering that user freedom of choice is restricted by the provided web site functionality. This will aid our building better collaborative Web sites improving the collaborative processes

A preliminary survey of the teaching of history and social studies in Maltese state primary schools

Man emerges as a central figure in all the work in Social Studies. The aim of this brief study is to check if and to what extent current ideas on the teaching of the subject are being actually implemented in Maltese State Primary Schools from Year 3 to Year 6 so that they will fit adequately into the concept and definition of Social Studies as described above.peer-reviewe

Cost-Benefit Analysis and Regulatory Reform: An Assessment of the Science and Art

The continuing efforts in the 104th Congress to legislate requirements for cost-benefit analysis (CBA) and the revised Office of Management and Budget guidelines for the conduct of such assessments during a regulatory rulemaking process highlight the need for a comprehensive examination of the role that CBA can play in agency decision-making. This paper summarizes the state of knowledge regarding CBA and offers suggestions for improvement in its use, especially in the context of environmental regulations.

On Upper Bounds for Toroidal Mosaic Numbers

In this paper, we work to construct mosaic representations of knots on the torus, rather than in the plane. This consists of a particular choice of the ambient group, as well as different definitions of contiguous and suitably connected. We present conditions under which mosaic numbers might decrease by this projection, and present a tool to measure this reduction. We show that the order of edge identification in construction of the torus sometimes yields different resultant knots from a given mosaic when reversed. Additionally, in the Appendix we give the catalog of all 2 by 2 torus mosaics.Comment: 10 pages, 111 figure