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The purpose of this paper is to construct a framework for discussion and future studies of the secondary use of electromagnetic spectrum.

The paper establishes some useful definitions and then systematically applies them to the secondary use case. This is extrapolated to develop a framework.

It is important to be careful to circumscribe discussions around secondary use, as each component of the framework poses different problems for implementation and research.

The paper proposes a way to structure the discussion of and research into secondary use of electromagnetic spectrum, which can apply significant clarity to future work in this area.

The purpose of this paper is to examine the current state and utilisation of user evaluation consultation adopted by Wales Air Ambulance (WAA) within the policy context. It is intended to provide a baseline for further evaluative research in the field and to highlight existing practices and resources. Gaps in strategic planning and service delivery are identified, with local recommendations proposed.

Semi‐structured, in‐depth face‐to‐face interviews were conducted with ten participants drawn from a convenient sample representative of stakeholders including practitioners, fundraisers and operational staff. These groups represent primary actors involved in the delivery of services and policy implementation and also secondary actors involved in the delivery as users. Documentary analysis of WAA dispatch policy and protocols combined with secondary quantitative data of key performance indicators was undertaken.

In total, 80 per cent of the sample stated their satisfaction with WAA dispatch policy with no perceived need or benefit to further development of policy or local agreements. About 70 per cent of participants had received direct comments that were 100 per cent positive from primary users/patients. All organisations shared the same concerns regarding lack of appropriate present communication.

The research design was driven by practicalities of time‐scale and resources. Owing to these constraints, plus the legal and ethical requirements relating to the involvement of patients in research, primary users were not included in this study. Areas for future research are identified.

Recommendations being implemented by WAA include further engagement with primary users of the service in order to enhance standards.

This paper reports the first empirical research conducted with WAA and users of the service.

The purpose of this paper is to build a research model that examines social media privacy concerns (SMPC) in relation to users’ trusting beliefs and risk beliefs.

An instrument with eight constructs (SMPC: collection, SMPC: secondary usage, SMPC: errors, SMPC: improper access, SMPC: control, SMPC: awareness, trusting beliefs and risk beliefs) was developed and administered to subjects from a mid-sized university in the USA. Collected data were analyzed using partial least square structural equation modeling.

The results showed that three of the six SMPC (i.e. secondary usage, improper access and awareness) were negatively and significantly associated with users’ trusting beliefs. In addition, three of the six SMPC (i.e. collection, errors and improper access) were positively and significantly associated with users’ risk beliefs.

Practical implications were aimed at the social media sites to design simple and straightforward privacy policy statements that are easy to understand; to safeguard users’ online privacy behaviors; and to develop mechanisms to protect personal information.

This study enhances the literature by contributing to a generalized knowledge of SMPC of users as they relate to their trusting beliefs and risk beliefs.

Designing technologies for active and healthy ageing (AHA) requires a subtle understanding of end users (primary stakeholders) and healthcare professionals (secondary stakeholders). Often, their perspectives can be heterogeneous and contradictory. Identifying and negotiating them may be a challenge for designers. The purpose of this paper is to present our approach to understanding and negotiating contradictory stakeholder perspectives when designing AHA technologies for older adults.

The authors conducted an exploratory interview study with 15 community-dwelling older adults and 11 healthcare stakeholders, including doctors, health insurance agencies, policymakers and caregivers. The authors analyzed the interview material and negotiated contradictory perspectives.

Three major issues among stakeholders emerged: perspectives on AHA; perceived benefits and drawbacks of AHA technologies; and concerns about data privacy, control and trust.

The results show the heterogeneity and contradictions in stakeholder perspectives on AHA technologies and how these perspectives may be negotiated. This could help understand and facilitate long-term use of AHA technologies among older adults.

This study alerts researchers to contradictory perspectives among older people and healthcare stakeholders and the importance of involving them in the design of AHA technologies.

Electronic devices aid communication during new communication phases and the scope of cognitive radio networks has changed communication paradigms through efficient use of spectrums. The communication prototype of cognitive radio networks defines user roles as primary user and secondary user in the context of the spectrum allocation and use. The users who have licensed authority of the spectrum are denoted as primary users, while other eligible users who access the corresponding spectrum are secondary users.

The multiple factors of transmission service quality can have a negative influence due to improper scheduling of spectrum bands between primary users and secondary users. There are considerable contributions in contemporary literature concerning spectrum band scheduling under spectrum sensing. However, the majority of the scheduling models are intended to manage a limited number of transmission service quality factors. Moreover, these service quality factors are functional and derived algorithmically from the current corresponding spectrum. However, there is evidence of credible performance deficiency regarding contemporary spectrum sensing methods

This article intends to portray a fuzzy guided integrated factors-based spectrum band sharing within the spectrum used by secondary users. This study attempts to explain the significance of this proposal compared to other contemporary models.

This article intends to portray a fuzzy guided integrated factors-based spectrum band sharing within the spectrum used by secondary users. This study attempts to explain the significance of this proposal compared to other contemporary models.

The main purpose of the current work is high quality video transmission over cognitive radio wireless networks.

A soft computing technique based on fuzzy logic concept is introduced that can reduce the blocking probability and increase the perceived quality of video users.

It is found that by using soft computing techniques it is possible to increase the perceived quality and reduce the blocking probability in cognitive radio networks for secondary video users.

The main originality of this paper is twofold: at first the design philosophy in admission is quality of experience centric and second, soft computing techniques are used to decrease the blocking probability in cognitive networks.

Imagine you are working at the reference desk of a major university library on a busy weekday afternoon. As you say, “How may I help you?” to your next client, you notice that he is wearing a high school letterman's jacket and is sporting fuzz on his upper lip that he would proudly call a mustache.

In vol. 6, 1976, of Advances in Librarianship, I published a review about relevance under the same title, without, of course, “Part I” in the title (Saracevic, 1976). [A substantively similar article was published in the Journal of the American Society for Information Science (Saracevic, 1975)]. I did not plan then to have another related review 30 years later—but things happen. The 1976 work “attempted to trace the evolution of thinking on relevance, a key notion in information science, [and] to provide a framework within which the widely dissonant ideas on relevance might be interpreted and related to one another” (ibid.: 338).

A huge variety of devices accumulates as well distributes a large quantity of data either with the help of wired networks or wireless networks to implement a wide variety of application scenarios. The spectrum resources on the other hand become extremely unavailable with the development of communication devices and thereby making it difficult to transmit data on time.

The spectrum resources on the other hand become extremely unavailable with the development of communication devices and thereby making it difficult to transmit data on time. Therefore, the technology of cognitive radio (CR) is considered as one of the efficient solutions for addressing the drawbacks of spectrum distribution whereas the secondary user (SU) performance is significantly influenced by the spatiotemporal instability of spectrum.

As a result, the technique of the hybrid filter detection network model (HFDNM) is suggested in this research work under various SU relationships in the networks of CR. Furthermore, a technique of hybrid filter detection was recommended in this work to enhance the performance of idle spectrum applications. When compared to other existing techniques, the suggested research work achieves enhanced efficiency with respect to both throughputs as well as delay.

The proposed HFDNM improved the transmission delay at 3 SUs with 0.004 s/message and 0.008 s/message when compared with existing NCNC and NNC methods in case of number of SUs and also improved 0.02 s/message and 0.08 s/message when compared with the existing methods of NCNC and NNC in case of channel loss probability at 0.3.

A computer program, CALFEM, is presented. This interactive computer program is designed as a tool for teaching of the finite element method. No programming knowledge is needed. The program is well suited to solve problems in structural mechanics and for solution of field problems. A variety of finite elements is available. One objective when designing CALFEM was that the user shall understand every part of the computational procedure. The program is based on a command language. All information is stored in user‐defined matrices created by usage of commands. Required input to matrices are given on request from the program. The contents of the matrices can be looked upon at any time and new decisions can be made in the course of the run. The user of the program determines in which way he wants to proceed with the calculation process by choosing proper commands. This means that everything in the computational procedure is under the direct control of the user. This is in contrast to many conventional ‘black box’ finite element programs. Commands can be stored on user‐defined secondary storage files. The files can be edited in CALFEM and be used further on in the calculation procedure. The program is written in FORTRAN 77 and all calculations are performed in double precision.