On Robust Analysis of a Normal Location Parameter

Pericchi and Smith considered a normal location parameter problem with double-exponential and Student t prior distributions. These two prior distributions both belong to the class of scale mixtures of normal distributions and are useful in providing a robust analysis of the normal location parameter problem. In this paper we extend the analysis to other scale mixtures of normal distributions, such as the exponential power and the symmetric stable distributions.     

A New Direction for Library Technical Services: Using Metadata Skills to Improve User Accessibility

Abstract

An increased awareness about the importance of resource accessibility for all library users has set the stage for transforming traditional cataloger roles into a new realm of possibility. The Acquisitions & Discovery (A&D) and the User Experience (UX) departments of North Carolina State University Libraries have formed a partnership to explore the benefits of working together amidst this climate of innovation and change. A pilot project was created to develop a workflow through which technical services staff can use their metadata skills to help resolve accessibility issues found on the Libraries’ main website. By performing this work, staff can grow in technical expertise, enhance the quality of metadata in web content, and build mutually beneficial partnerships within the library community.     

Socioeconomic Risk in Development of Energy Systems

A soft mathematical model, taking stock of the stochastic and cooperative features of the economy of thinking in the decision making, is aggregated to unveil hidden connections between energy policy and the energy technology choices of an establishment. Starting from several assumptions on the nature of the collective decisional behavior, one obtains a probabilistic interpretation of the mechanism of penetration of energy technologies. The probability that the establishment bets on a certain technological profile is given as a solution to a Fokker-Planck equation accounting for the decision game. It provides a topological variety that accomodates possible states of the system and their trajectories, and indicates ways in which different attractors drive the technology choice in the space of the energy policy.
In this framework, a series of concepts (i.e., logistic evolution, resilience, stability, risks of disruption or crisis, energy security) can find in a natural way strikingly intuitive interpretations. Strategic games are possible on this ground, confirming facts of life and also showing predictive power. The complex and difficult to manage interdependence between energy policy and technology appears as a challenge to the long-term planning of alternative energy systems. To meet the challenge, preparedness for changes through a large freedom of choice on the technological options appears as a necessary complement to the faithful observance of the market drives, which stresses the importance of having available perceptive, coherent, reliable, and responsible mechanisms of decision making.     

Hong Kong Chinese explanations for wealth

This study set out to replicate and extend studies done on attributions for affluence in Western, industrialized countries to a country famous for its wealth and economic growth. Over 100 subjects in Hong Kong rated explanations for wealth according to importance. Results showed that overall the subjects tended to endorse individualistic explanations for wealth while negating the relative importance of societal or fatalistic factors. There were few sex or income effects no doubt due to the sample tested. A factor analysis revealed two clear factors: internal-external (individualistic-collectivistic). The results are discussed in terms of the unique position of Hong Kong.     

Inflation and the estimated sizes of notes

Thirty adults were asked in 1982 to estimate the size of various British notes (£1.00, £5.00, £10.00, £20.00) at a time when the inflation rate was approximately 15%. Although there were no differences in their estimation as function of their age, sex, income or use of credit cards they consistentlyunder-estimated the size of all notes. Furthermore they overestimated the size of the old pound note (withdrawn in 1979) and underestimated the size of the new pound note. These findings are attributable to the effects of inflation.     

Technology selection in the absence of standardised materials and processes: a survey in the UK composite materials supply chain

Composite materials is an industry where technology selection has major consequences as there is not a standard manufacturing process, nor are there standardised materials with defined or proscribed properties for companies to select as multiple solutions are technically viable. This research aims to identify key factors for manufacturing technology selection in the UK composite materials supply chain. Literature review and managers’ opinions were used to identify 18 factors affecting manufacturing technology selection. This was followed by a survey comprising the multi-tier supply chain of the composite materials industry. The results of the survey show ‘on time deliveries/service level to customers’, ‘improve quality’ and ‘reduce cycle time’ received the highest average ratings. In this study a correlation analysis was performed to identify the underlying dependencies between the factors investigated. The identification and use of underlying dependencies rather than highest average provided a more comprehensive picture of the factors that affect technology selection in the composite materials industry. For this study, experts in composite materials were asked to comment on the findings of the survey and their value to the industry. The results presented may assist companies in the composite materials industry with technology selection decision-making processes.     

Solidarity in Action at a Time of Crisis: The Role of Employee Voice in Relation to Communication and Horizontal Solidarity Behaviour

Solidarity behaviour (SB) among employees is important in building a sense of community in organizations, particularly within a crisis context where adverse working conditions prevail. However, we have limited knowledge concerning how SB develops. Using the lens of social exchange theory, this study examines how top-down communication and employee voice relate to horizontal (employee to emplCoyee) SB. We conducted two comprehensive studies during the Greek economic crisis and found that the relationship between top-down employee communication and horizontal SB is mediated by employee voice. The paper extends our existing knowledge in the fields of management and human resource management by advancing our understanding of horizontal SB, highlighting the role of top-down employee communication as an effective human resource practice and delineating the role of employee voice in fostering workplace camaraderie in small and medium-sized enterprises under crisis.     

Packing <Emphasis Type="Bold">[1, Δ]</Emphasis>-factors in graphs of small degree

Given an undirected, connected graph G with maximum degree Δ, we introduce the concept of a [1, Δ]-factor k-packing in G, defined as a set of k edge-disjoint subgraphs of G such that every vertex of G has an incident edge in at least one subgraph. The problem of deciding whether a graph admits a [1,Δ]-factor k-packing is shown to be solvable in linear time for k = 2, but NP-complete for all k≥ 3. For k = 2, the optimisation problem of minimising the total number of edges of the subgraphs of the packing is NP-hard even when restricted to subcubic planar graphs, but can in general be approximated within a factor of by reduction to the Maximum 2-Edge-Colorable Subgraph problem. Finally, we discuss implications of the obtained results for the problem of fault-tolerant guarding of a grid, which provides the main motivation for research.