Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Technical Reports and Translations of the United States…
Abstract
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Technical Reports and Translations of the United States National Aeronautics and Space Administration and publications of other similar Research Bodies as issued.
THE overall design philosophy of the DAC One‐Elcvcn has already been described in the preceding papers on operating economics and systems—so that this article sets out to extend…
Abstract
THE overall design philosophy of the DAC One‐Elcvcn has already been described in the preceding papers on operating economics and systems—so that this article sets out to extend that information by explaining how the aerodynamic features of the aircraft enable the spscification of this short‐range twin jet to be met.
Suneeta Bhamra, Anthea Tinker, Gill Mein, Richard Ashcroft and Janet Askham
Research that follows people over a period of time (longitudinal or panel studies) is increasingly recognised as of great importance in helping us to understand the ageing process…
Abstract
Research that follows people over a period of time (longitudinal or panel studies) is increasingly recognised as of great importance in helping us to understand the ageing process and changes over time in the lives of older people. If people drop out of studies ‐ which older people are more likely to do ‐ the value of the study diminishes. This research draws on evidence from ongoing and previous longitudinal studies of people aged 55 and over to examine what factors encourage the retention of participants and what causes them to drop out. The research is synthesising existing evidence, drawing together the experiences of researchers involved in longitudinal studies, and collecting some new evidence about the views of survey participants. This article reports on the first part of the research by drawing together evidence from other studies. These show that there are some factors that are related to attrition whereas for others the evidence is mixed. Methods employed by these studies to reduce attrition and retain participants are examined. It must be noted that apart from the consistent finding that attrition is associated with age, education, socio‐economic status and cognitive impairment, not all studies examined the same variables; some only being explored by one study. This makes it difficult to draw any further conclusions and indicates that attrition needs to be addressed in a uniform manner by more studies. This article identifies some implications for policy‐makers and practitioners.
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Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Technical Reports and Translations of the United States…
Abstract
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Technical Reports and Translations of the United States National Aeronautics and Space Administration and publications of other similar Research Bodies as issued.
Air Products chairman and chief executive officer, Dexter F Baker, and president, Dr Bob Lovett, recently visited the main factory at Manchester of their company's new acquisition…
Abstract
Air Products chairman and chief executive officer, Dexter F Baker, and president, Dr Bob Lovett, recently visited the main factory at Manchester of their company's new acquisition Anchor Chemical Group.
Corrocoat expand on‐site services. The establishment of a full on‐site contracting division is the latest move by corrosion engineering and repair specialists Corrocoat in a drive…
Abstract
Corrocoat expand on‐site services. The establishment of a full on‐site contracting division is the latest move by corrosion engineering and repair specialists Corrocoat in a drive to offer a complete repair and refurbishment package to the marine/ petrochemical/power generation industry.
Yasmein Okour, Kawthar Alrayyan and Roa’a Zidan
This paper analyzes and illustrates the spatial distribution of publications in international urban planning journals from 2010 to 2020.
Abstract
Purpose
This paper analyzes and illustrates the spatial distribution of publications in international urban planning journals from 2010 to 2020.
Design/methodology/approach
The study employs the Biblioshiny bibliometrix package in R to analyze 44,123 articles from 95 international planning journals. To conduct the spatial scientometric analysis, we adopted the United Nations’ geoscheme focusing on three geographical scales: country, subregion, and region. Collaboration patterns at the country and subregional levels were examined using the VOSviewer tool.
Findings
The study found evidence of a spatial polarization of urban planning scholarly knowledge production. Scholars based in the United States and the United Kingdom consistently published at higher rates than any other country in our data set. The region producing the largest number of publications was Europe, consisting of 39.92% of the total publication count. However, urban planning scholars from the Global South authored only 20.96% of planning publications from 2010–2020. Centralization of planning research is also evident within each region and subregion. As such, both the Global North and the Global South should not be framed as homogenous entities and spatial patterns of knowledge production should not be generalized. The analysis also established the emerging role of Northern America as a major collaborator in inter-country and inter-subregional research collaborations. Co-authorship patterns indicate low intra-regional collaboration in planning research, except for Europe.
Originality/value
This article argues that a culture of exclusivity may be occurring in urban planning publication production. By highlighting the spatial disparities in knowledge production, we emphasize the need to examine the structural and institutional barriers that exclude urban planning knowledge emerging from the peripheries in international planning journals.
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Smart card-based E-payment systems are receiving increasing attention as the number of implementations is witnessed on the rise globally. Understanding of user adoption behavior…
Abstract
Smart card-based E-payment systems are receiving increasing attention as the number of implementations is witnessed on the rise globally. Understanding of user adoption behavior of E-payment systems that employ smart card technology becomes a research area that is of particular value and interest to both IS researchers and professionals. However, research interest focuses mostly on why a smart card-based E-payment system results in a failure or how the system could have grown into a success. This signals the fact that researchers have not had much opportunity to critically review a smart card-based E-payment system that has gained wide support and overcome the hurdle of critical mass adoption. The Octopus in Hong Kong has provided a rare opportunity for investigating smart card-based E-payment system because of its unprecedented success. This research seeks to thoroughly analyze the Octopus from technology adoption behavior perspectives.
Cultural impacts on adoption behavior are one of the key areas that this research posits to investigate. Since the present research is conducted in Hong Kong where a majority of population is Chinese ethnicity and yet is westernized in a number of aspects, assuming that users in Hong Kong are characterized by eastern or western culture is less useful. Explicit cultural characteristics at individual level are tapped into here instead of applying generalization of cultural beliefs to users to more accurately reflect cultural bias. In this vein, the technology acceptance model (TAM) is adapted, extended, and tested for its applicability cross-culturally in Hong Kong on the Octopus. Four cultural dimensions developed by Hofstede are included in this study, namely uncertainty avoidance, masculinity, individualism, and Confucian Dynamism (long-term orientation), to explore their influence on usage behavior through the mediation of perceived usefulness.
TAM is also integrated with the innovation diffusion theory (IDT) to borrow two constructs in relation to innovative characteristics, namely relative advantage and compatibility, in order to enhance the explanatory power of the proposed research model. Besides, the normative accountability of the research model is strengthened by embracing two social influences, namely subjective norm and image. As the last antecedent to perceived usefulness, prior experience serves to bring in the time variation factor to allow level of prior experience to exert both direct and moderating effects on perceived usefulness.
The resulting research model is analyzed by partial least squares (PLS)-based Structural Equation Modeling (SEM) approach. The research findings reveal that all cultural dimensions demonstrate direct effect on perceived usefulness though the influence of uncertainty avoidance is found marginally significant. Other constructs on innovative characteristics and social influences are validated to be significant as hypothesized. Prior experience does indeed significantly moderate the two influences that perceived usefulness receives from relative advantage and compatibility, respectively. The research model has demonstrated convincing explanatory power and so may be employed for further studies in other contexts. In particular, cultural effects play a key role in contributing to the uniqueness of the model, enabling it to be an effective tool to help critically understand increasingly internationalized IS system development and implementation efforts. This research also suggests several practical implications in view of the findings that could better inform managerial decisions for designing, implementing, or promoting smart card-based E-payment system.
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Elías Moreno and Luís Raúl Pericchi
We put forward the idea that for model selection the intrinsic priors are becoming a center of a cluster of a dominant group of methodologies for objective Bayesian Model…
Abstract
We put forward the idea that for model selection the intrinsic priors are becoming a center of a cluster of a dominant group of methodologies for objective Bayesian Model Selection.
The intrinsic method and its applications have been developed in the last two decades, and has stimulated closely related methods. The intrinsic methodology can be thought of as the long searched approach for objective Bayesian model selection and hypothesis testing.
In this paper we review the foundations of the intrinsic priors, their general properties, and some of their applications.